:root{color-scheme:light;--bg: #fafafa;--bg-soft: #f1f1f2;--bg-card: #ffffff;--bg-elev: #f4f4f5;--border: #d4d4d8;--border-soft: #e5e5e5;--text: #111111;--text-dim: #444444;--text-faint: #666666;--primary: #16a34a;--primary-soft: #15803d;--accent: #2563eb;--violet: #7c3aed;--green: #16a34a;--amber: #b45309;--red: #dc2626;--pink: #db2777;--cyan: #0284c7;--gold: #8a6d1b;--gold-soft: linear-gradient(100deg, #8a6d1b, #d4af37 55%, #9a7b1e);--site-bg: #fafafa;--site-card: #ffffff;--site-border: #d4d4d8;--site-border-soft: #e5e5e5;--site-primary: #16a34a;--site-accent: #2563eb;--site-text: #111111;--site-text-dim: #444444;--site-text-faint: #666666;--radius: 16px;--radius-sm: 10px;--shadow-lg: 0 1px 2px rgba(0, 0, 0, .05), 0 8px 24px -12px rgba(0, 0, 0, .12);--font-sans: "Inter", system-ui, -apple-system, sans-serif;--font-mono: "JetBrains Mono", ui-monospace, SFMono-Regular, monospace}*{margin:0;padding:0;box-sizing:border-box}html{scroll-behavior:smooth}body{font-family:var(--font-sans);background:var(--bg);color:var(--text);line-height:1.6;-webkit-font-smoothing:antialiased;overflow-x:hidden}a{color:inherit;text-decoration:none}button{font-family:inherit;cursor:pointer;border:none;background:none;color:inherit}h1,h2,h3,h4,h5,h6{color:#111}::-webkit-scrollbar{width:10px;height:10px}::-webkit-scrollbar-track{background:var(--bg-soft)}::-webkit-scrollbar-thumb{background:#d4d4d8;border-radius:8px}::-webkit-scrollbar-thumb:hover{background:#a1a1aa}code{font-family:var(--font-mono)}.bg-glow,.bg-grid,.space-backdrop,.hero-binary,.hero-nebula{display:none}::selection{background:#16a34a38}.container{width:min(1240px,94vw);margin:0 auto}.container-wide{width:min(1720px,97vw);max-width:100vw;box-sizing:border-box}@media(min-width:1800px){.container{width:min(1320px,94vw)}.container-wide{width:min(1800px,97vw)}}.page{padding:var(--nav-h, 76px) 0 64px;min-height:100vh;transition:padding-top .3s ease}html[data-nav-hidden="1"] .page{padding-top:12px}@media(prefers-reduced-motion:reduce){.page{transition:none}}.page-content [id]{scroll-margin-top:calc(var(--nav-h, 76px) + 12px)}.nav{position:fixed;top:0;left:0;right:0;z-index:100;-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);background:#111111f5;border-bottom:1px solid #262626;transition:background .3s ease,transform .3s ease}.nav-hidden{transform:translateY(-110%)}.nav-edge{position:fixed;top:0;left:0;right:0;height:14px;z-index:99}.nav-peek{position:fixed;top:0;left:50%;transform:translate(-50%);z-index:99;padding:1px 16px 4px;font-size:.62rem;line-height:1;color:#aebcf5;background:#6c8cff1f;border:1px solid rgba(148,170,255,.25);border-top:none;border-radius:0 0 10px 10px;backdrop-filter:blur(6px);-webkit-backdrop-filter:blur(6px);opacity:.55;cursor:pointer;transition:opacity .2s ease}.nav-peek:hover{opacity:1}@media(prefers-reduced-motion:reduce){.nav{transition:none}}html[data-nav-hidden="1"] .lesson-nav,html[data-nav-hidden="1"] .dsa-code,html[data-nav-hidden="1"] .ad-rail,html[data-nav-hidden="1"] .cq-split-right,html[data-nav-hidden="1"] .home-rail-ads,html[data-nav-hidden="1"] .algo-ads-col{top:12px}html[data-nav-hidden="1"] .cq-q{scroll-margin-top:12px}html[data-nav-hidden="1"] .page-content [id]{scroll-margin-top:24px}.nav-inner{display:flex;align-items:center;justify-content:space-between;height:64px;gap:12px;max-width:100%}.nav-logo{display:flex;align-items:center;gap:10px;font-weight:800;font-size:1.15rem;letter-spacing:-.02em;color:#fff}.nav-logo .logo-badge{width:30px;height:30px;border-radius:9px;background:var(--primary);color:#fff;display:grid;place-items:center;font-size:.85rem}.nav-sec-wrap{position:relative;display:flex;align-items:center;flex:1 1 auto;min-width:0}.nav-strip-links{display:flex;align-items:center;gap:2px;flex:1 1 auto;min-width:0;flex-wrap:nowrap;overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none;padding:6px 0;scroll-padding-left:36px;scroll-padding-right:36px}.nav-strip-links::-webkit-scrollbar{display:none}.strip-arrow{position:absolute;top:50%;transform:translateY(-50%);z-index:2;display:grid;place-items:center;width:28px;height:28px;border-radius:50%;font-size:1rem;line-height:1;color:#fff;border:1px solid #333333;background:#1f2937;cursor:pointer;opacity:0;pointer-events:none;transition:opacity .2s ease,color .15s ease}.strip-arrow.show{opacity:1;pointer-events:auto}.strip-arrow:hover{color:#4ade80;border-color:#4ade80}.strip-arrow.left{left:2px}.strip-arrow.right{right:2px}.nav-link{padding:8px 10px;border-radius:10px;font-size:.9rem;font-weight:500;color:#e5e5e5;transition:all .2s ease;white-space:nowrap;flex-shrink:0}.nav-link:hover{color:#fff;background:#ffffff14}.nav-link.active{color:#4ade80;background:#4ade801f}.nav-cta{padding:9px 14px;border-radius:10px;font-size:.88rem;font-weight:600;background:var(--primary);color:#fff;box-shadow:0 6px 22px #16a34a59;transition:transform .2s ease,box-shadow .2s ease,background .2s ease;white-space:nowrap;flex-shrink:0}.nav-cta:hover{transform:translateY(-1px);background:#15803d;box-shadow:0 8px 26px #16a34a80}.nav-right{display:flex;align-items:center;gap:10px;margin-left:auto;min-width:0;flex:0 1 auto}.nav-toggle{display:none;flex-direction:column;gap:5px;padding:10px}.nav-toggle span{width:22px;height:2px;background:#fff;border-radius:2px;transition:all .25s ease}.nav-mobile{display:none;flex-direction:column;padding:8px 0 16px;gap:4px;background:var(--bg-card);border:1px solid var(--border-soft);border-top:1px solid var(--border-soft);border-radius:0 0 14px 14px;box-shadow:var(--shadow-lg)}.nav-mobile .nav-link{color:var(--text-dim)}.nav-mobile .nav-link:hover{color:var(--text);background:#16a34a12}.nav-mobile .nav-link.active{color:var(--primary-soft);background:#16a34a1a}html[data-theme=night] .nav-mobile{background:#0d1424}html[data-theme=night] .nav-mobile .nav-link{color:#e5e5e5}html[data-theme=night] .nav-mobile .nav-link:hover{color:#fff;background:#ffffff0f}html[data-theme=night] .nav-mobile .nav-link.active{color:#4ade80;background:#4ade801f}@media(max-width:1100px){.nav-srch{flex-basis:170px}.nav-link{padding:8px;font-size:.85rem}}@media(max-width:860px){.nav-sec-wrap{display:none}.nav-right{flex:1 1 auto}.nav-right .nav-srch{margin-left:0}.nav-srch{flex:1 1 auto;margin-left:0}.nav-toggle,.nav-mobile.open{display:flex}}@media(max-width:480px){.nav-logo-text{display:none}.nav-inner{gap:8px}}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:13px 26px;border-radius:12px;font-weight:600;font-size:.98rem;transition:all .2s ease;border:1px solid transparent}.btn-primary{background:#111;color:#fff;border-color:#111;box-shadow:0 8px 26px #0000002e}.btn-primary:hover{transform:translateY(-2px);background:var(--primary);border-color:var(--primary);box-shadow:0 12px 32px #16a34a66}.btn-ghost{border-color:var(--border);color:var(--text);background:var(--bg-card)}.btn-ghost:hover{border-color:var(--primary);color:var(--primary-soft);background:#16a34a0f}.hero{padding:calc(var(--nav-h, 76px) + 72px) 0 60px;text-align:center;position:relative;transition:padding-top .3s ease}html[data-nav-hidden="1"] .hero{padding-top:84px}@media(prefers-reduced-motion:reduce){.hero{transition:none}}.hero-badge{display:inline-flex;align-items:center;gap:8px;padding:8px 16px;border-radius:999px;font-size:.85rem;font-weight:600;color:#15803d;background:#f0fdf4;border:1px solid #bbf7d0;margin-bottom:26px}.hero-badge .dot{width:8px;height:8px;border-radius:50%;background:var(--primary);animation:pulse 1.8s ease infinite}.hero h1{font-size:clamp(2.4rem,6vw,4.2rem);font-weight:800;letter-spacing:-.03em;line-height:1.12;margin-bottom:22px}.hero h1 .grad{background:var(--gold-soft);-webkit-background-clip:text;background-clip:text;color:transparent}.hero p{font-size:clamp(1.05rem,2vw,1.25rem);color:var(--text-dim);max-width:680px;margin:0 auto 36px}.hero-actions{display:flex;gap:14px;justify-content:center;flex-wrap:wrap}.hero-stats{display:flex;justify-content:center;gap:44px;margin-top:48px;flex-wrap:wrap}.stat .num{font-size:2rem;font-weight:800;color:#111;font-family:var(--font-mono)}.stat .lbl{font-size:.86rem;color:var(--text-faint)}.hero-showcase{max-width:760px;margin:56px auto 0;text-align:left}.mock-viz{background:var(--bg-card);border:1px solid var(--border-soft);border-radius:20px;padding:18px 20px 20px;box-shadow:var(--shadow-lg)}.mock-head{display:flex;align-items:center;gap:10px}.mock-dots{display:flex;gap:6px}.mock-dots i{width:11px;height:11px;border-radius:50%;background:#f87171}.mock-dots i:nth-child(2){background:#fbbf24}.mock-dots i:nth-child(3){background:#34d399}.mock-file{font-family:var(--font-mono);font-size:.8rem;color:var(--text-dim)}.mock-badge{margin-left:auto;font-size:.72rem;font-weight:600;letter-spacing:.05em;text-transform:uppercase;color:var(--accent);background:#22d3ee14;border:1px solid rgba(34,211,238,.2);padding:5px 12px;border-radius:999px}.mock-stage{display:flex;align-items:flex-end;gap:8px;height:200px;margin-top:16px;padding:18px 16px 0;background:#0b1120;border:1px solid var(--border-soft);border-radius:12px;overflow:hidden}.mock-bar{flex:1;min-width:6px;border-radius:6px 6px 0 0;background:linear-gradient(180deg,var(--primary),rgba(108,140,255,.35))}.mock-bar.hl-a{background:linear-gradient(180deg,var(--accent),rgba(34,211,238,.35))}.mock-bar.hl-b{background:linear-gradient(180deg,var(--violet),rgba(167,139,250,.35))}.mock-info{display:flex;align-items:center;justify-content:space-between;gap:14px;flex-wrap:wrap;margin-top:14px;font-size:.85rem}.mock-legend{display:inline-flex;align-items:center;gap:7px;font-size:.8rem;color:var(--text-faint)}.mock-legend .sw{width:12px;height:12px;border-radius:3px;display:inline-block}.mock-legend .sw.hl-a{background:var(--accent)}.mock-legend .sw.hl-b{background:var(--violet)}.mock-msg{font-family:var(--font-mono);color:var(--text-dim)}.section{padding:88px 0}.section-head{text-align:center;max-width:680px;margin:0 auto 56px}.section-eyebrow{display:inline-block;font-size:.82rem;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--primary);margin-bottom:14px}.section-head h2{font-size:clamp(1.8rem,4vw,2.6rem);font-weight:800;letter-spacing:-.02em;margin-bottom:14px}.section-head p{color:var(--text-dim);font-size:1.05rem}.card{background:var(--bg-card);border:1px solid var(--border-soft);border-radius:var(--radius);padding:26px;transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease}.card:hover{transform:translateY(-4px);border-color:var(--border);box-shadow:var(--shadow-lg)}.feature-icon{width:48px;height:48px;border-radius:13px;display:grid;place-items:center;font-size:1.4rem;margin-bottom:18px}.card h3{font-size:1.12rem;font-weight:700;margin-bottom:10px}.card p{color:var(--text-dim);font-size:.95rem}.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:22px}@media(max-width:900px){.grid-3,.grid-2{grid-template-columns:1fr}}.lang-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(170px,1fr));gap:16px}.lang-card{position:relative;overflow:hidden;background:var(--bg-card);border:1px solid var(--border-soft);border-radius:var(--radius);padding:22px 20px;display:flex;flex-direction:column;align-items:flex-start;gap:8px;cursor:pointer;transition:all .25s ease}.lang-card:before{content:"";position:absolute;inset:0;background:linear-gradient(135deg,var(--lc),transparent 70%);opacity:0;transition:opacity .25s ease}.lang-card:hover{transform:translateY(-4px);border-color:var(--lc)}.lang-card:hover:before{opacity:.18}.lang-logo{font-family:var(--font-mono);font-weight:700;font-size:.92rem;padding:6px 10px;border-radius:8px;color:var(--lc);background:color-mix(in srgb,var(--lc) 14%,transparent)}.lang-card span.name{font-weight:700;font-size:1.05rem}.lang-card .tag{font-size:.82rem;color:var(--text-faint)}.vis-card{display:block;position:relative;overflow:hidden;background:var(--bg-card);border:1px solid var(--border-soft);border-radius:var(--radius);padding:22px 24px;transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease}.vis-card:before{content:"";position:absolute;inset:0;background:radial-gradient(420px 140px at 0% 0%,color-mix(in srgb,var(--vc) 16%,transparent),transparent 70%);opacity:0;transition:opacity .25s ease}.vis-card:hover{transform:translateY(-4px);border-color:color-mix(in srgb,var(--vc) 55%,var(--border));box-shadow:var(--shadow-lg)}.vis-card:hover:before{opacity:1}.vis-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:14px}.vis-ico{font-family:var(--font-mono);font-weight:700;font-size:.95rem;padding:8px 12px;border-radius:10px;color:var(--vc);background:color-mix(in srgb,var(--vc) 14%,transparent)}.vis-arrow{font-size:1.1rem;color:var(--text-faint);transition:transform .25s ease,color .25s ease}.vis-card:hover .vis-arrow{transform:translate(4px);color:var(--vc)}.vis-card h3{font-size:1.1rem;font-weight:700;margin-bottom:8px}.vis-card p{color:var(--text-dim);font-size:.9rem}.final-cta{position:relative;overflow:hidden;text-align:center;background:var(--bg-card);border:1px solid var(--border-soft);border-radius:24px;padding:64px 32px;box-shadow:var(--shadow-lg)}.final-cta:before{display:none}.final-cta h2{font-size:clamp(1.8rem,4vw,2.6rem);font-weight:800;letter-spacing:-.02em;margin:8px 0 14px;position:relative}.final-cta p{color:var(--text-dim);font-size:1.05rem;max-width:560px;margin:0 auto 30px;position:relative}.final-cta .hero-actions,.final-cta .section-eyebrow{position:relative}.reveal{opacity:0;transform:translateY(28px);transition:opacity .7s ease,transform .7s ease}.reveal.visible{opacity:1;transform:translateY(0)}.ripple-host{position:relative;overflow:hidden}.ripple-wave{position:absolute;border-radius:50%;pointer-events:none;background:radial-gradient(circle,rgba(22,163,74,.35) 0%,rgba(22,163,74,.14) 45%,transparent 70%);transform:scale(0);animation:ripple-spread .65s ease-out forwards;z-index:1}@keyframes ripple-spread{to{transform:scale(1);opacity:0}}.lift{transition:transform .28s cubic-bezier(.22,1,.36,1),box-shadow .28s ease,border-color .28s ease;will-change:transform}.lift:hover{transform:translateY(-6px) scale(1.012);box-shadow:0 18px 44px -12px #16a34a47,0 6px 18px #0000001a;border-color:#16a34a73}.lift:active{transform:translateY(-2px) scale(.995);transition-duration:.1s}.glow-border{position:relative}.glow-border:after{content:"";position:absolute;inset:-1px;border-radius:inherit;padding:1px;background:linear-gradient(135deg,#16a34ae6,#2563eb8c,#16a34ab3);-webkit-mask:linear-gradient(#fff 0 0) content-box,linear-gradient(#fff 0 0);-webkit-mask-composite:xor;mask-composite:exclude;opacity:0;transition:opacity .35s ease;pointer-events:none}.glow-border:hover:after{opacity:1}.page-enter{animation:page-in .45s cubic-bezier(.22,1,.36,1) both}@keyframes page-in{0%{opacity:0}to{opacity:1}}.stat .num.counted{animation:num-pop .45s cubic-bezier(.34,1.56,.64,1) both}@keyframes num-pop{0%{transform:scale(.7);opacity:0;filter:blur(4px)}to{transform:scale(1)}}@keyframes chip-in{0%{opacity:0;transform:translateY(12px) scale(.96)}to{opacity:1;transform:translateY(0) scale(1)}}.chip-stagger>*{animation:chip-in .4s cubic-bezier(.22,1,.36,1) both;animation-delay:calc(var(--chip-i, 0) * 35ms)}.sweep-link{position:relative}.sweep-link:after{content:"";position:absolute;left:0;bottom:-2px;height:2px;width:100%;border-radius:2px;background:linear-gradient(90deg,var(--primary),var(--accent));transform:scaleX(0);transform-origin:right;transition:transform .3s cubic-bezier(.22,1,.36,1)}.sweep-link:hover:after{transform:scaleX(1);transform-origin:left}@keyframes float-y{0%,to{transform:translateY(0)}50%{transform:translateY(-7px)}}.float-soft{animation:float-y 4.5s ease-in-out infinite}.float-soft:nth-child(2n){animation-delay:1.2s}.float-soft:nth-child(3n){animation-delay:2.1s}@media(prefers-reduced-motion:reduce){.ripple-wave,.page-enter,.chip-stagger>*,.stat .num.counted,.float-soft{animation:none!important}.lift,.lift:hover,.lift:active{transform:none!important}.glow-border:after{transition:none}}.footer{border-top:1px solid var(--border-soft);padding:44px 0 28px;margin-top:56px;color:var(--text-faint);font-size:.9rem;background:var(--bg-card)}.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr;gap:36px}.footer-brand p{margin:12px 0 0;max-width:340px;line-height:1.6}.footer-logo{display:flex;align-items:center;gap:10px}.footer-name{font-weight:800;font-size:1.1rem;color:var(--text);letter-spacing:-.01em}.brand-animated{background:linear-gradient(90deg,#b8912f,#f6e27a 30%,#fff7cc,#f6e27a 70%,#b8912f);filter:drop-shadow(0 0 6px rgba(212,175,55,.45));background-size:250% auto;-webkit-background-clip:text;background-clip:text;color:transparent;animation:brand-shimmer 4s linear infinite;white-space:nowrap}@keyframes brand-shimmer{to{background-position:250% center}}@media(prefers-reduced-motion:reduce){.brand-animated{animation:none}}.footer-col{display:flex;flex-direction:column;gap:9px}.footer-col-title{font-size:.74rem;font-weight:700;letter-spacing:.1em;text-transform:uppercase;color:var(--text-dim);margin-bottom:4px}.footer-link{color:var(--text-faint);font-size:.9rem;transition:color .18s ease,transform .18s ease;width:fit-content}.footer-link:hover{color:var(--primary-soft);transform:translate(2px)}.footer-bottom{display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap;margin-top:34px;padding-top:20px;border-top:1px solid var(--border-soft)}.footer-tag{font-size:.8rem;color:var(--text-faint)}@media(max-width:760px){.footer-grid{grid-template-columns:1fr;gap:24px}}@keyframes pulse{0%,to{opacity:1;transform:scale(1)}50%{opacity:.4;transform:scale(.85)}}@keyframes float{0%,to{transform:translateY(0)}50%{transform:translateY(-12px)}}@keyframes fadeInUp{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}@keyframes shimmer{0%{background-position:-400px 0}to{background-position:400px 0}}.text-dim{color:var(--text-dim)}.text-faint{color:var(--text-faint)}.ds-cat-blurb{color:#333}.mt-1{margin-top:8px}.mt-2{margin-top:16px}.mt-3{margin-top:24px}.mb-2{margin-bottom:16px}.center{text-align:center}.grad-text,.gold-text{background:var(--gold-soft);-webkit-background-clip:text;background-clip:text;color:transparent}.code-block{position:relative;background:#0b1120;border:1px solid var(--border-soft);border-radius:var(--radius-sm);overflow:hidden;font-family:var(--font-mono);font-size:.88rem;line-height:1.7;color:#e8edf7}.code-block pre{padding:18px 20px;overflow-x:auto;white-space:pre-wrap;word-break:break-word;overflow-wrap:anywhere}.code-block .cb-header{display:flex;align-items:center;gap:8px;padding:10px 16px;background:#ffffff08;border-bottom:1px solid var(--border-soft);font-family:var(--font-sans);font-size:.8rem;color:#a9b8d0}.code-block .cb-dots{display:flex;gap:6px}.code-block .cb-dots i{width:11px;height:11px;border-radius:50%;display:block}.tok-kw{color:#c792ea}.tok-fn{color:#82aaff}.tok-str{color:#c3e88d}.tok-num{color:#f78c6c}.tok-com{color:#5c6a8a;font-style:italic}.tok-type{color:#ffcb6b}.tok-op{color:#89ddff}.tok-cls{color:#ffcb6b}.lesson-nav{position:sticky;top:84px;align-self:start;background:var(--bg-card);border:1px solid var(--border-soft);border-radius:var(--radius);padding:18px;display:flex;flex-direction:column;gap:4px;max-height:calc(100vh - 120px);overflow-y:auto}.lesson-nav .ln-label{font-size:.78rem;font-weight:700;letter-spacing:.06em;text-transform:uppercase;color:var(--text-faint);margin:10px 0 4px;padding:0 10px}.lesson-nav a.ln-link{padding:8px 10px;border-radius:8px;font-size:.88rem;color:var(--text-dim);transition:all .18s ease}.lesson-nav a.ln-link:hover{color:var(--text);background:#6c8cff14}.lesson-nav a.ln-link.active{color:var(--primary-soft);background:#6c8cff1f}.learn-layout{display:grid;grid-template-columns:260px minmax(0,1fr) 300px;gap:32px;align-items:start}@media(max-width:900px){.learn-layout{grid-template-columns:1fr}.lesson-nav{position:static;max-height:none;flex-direction:row;flex-wrap:wrap;gap:6px}}.lesson h2{font-size:1.7rem;font-weight:800;margin:40px 0 14px;letter-spacing:-.01em}.lesson h2:first-child{margin-top:0}.lesson h3{font-size:1.2rem;font-weight:700;margin:28px 0 12px}.lesson p{color:var(--text-dim);margin-bottom:14px}.lesson ul,.lesson ol{color:var(--text-dim);margin:0 0 18px 20px}.lesson li{margin-bottom:8px}.lesson .code-block{margin:16px 0}.tip-box{border-left:3px solid var(--accent);background:#22d3ee12;border-radius:0 var(--radius-sm) var(--radius-sm) 0;padding:14px 18px;margin:18px 0;font-size:.95rem;color:var(--text-dim)}.tip-box strong{color:var(--accent)}.warn-box{border-left:3px solid var(--amber);background:#fbbf2412;border-radius:0 var(--radius-sm) var(--radius-sm) 0;padding:14px 18px;margin:18px 0;font-size:.95rem;color:var(--text-dim)}.warn-box strong{color:var(--amber)}.loader{display:inline-block;width:14px;height:14px;border:2px solid rgba(4,17,12,.4);border-top-color:#04110c;border-radius:50%;animation:spin .8s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.dsa-tabs{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:24px}.dsa-tab{padding:9px 18px;border-radius:999px;font-size:.9rem;font-weight:600;color:var(--text-dim);border:1px solid var(--border-soft);background:var(--bg-card);transition:all .2s ease}.dsa-tab:hover{border-color:var(--primary);color:var(--text)}.dsa-tab.active{color:#fff;background:var(--primary);border-color:var(--primary);box-shadow:0 6px 20px #16a34a59}.dsa-layout{display:grid;grid-template-columns:minmax(0,1fr) var(--code-w, 400px);gap:20px;align-items:start}.dsa-viz{min-width:0}.dsa-code{position:sticky;top:84px;min-width:0}.code-panel{width:100%;background:var(--bg-card);border:1px solid var(--border-soft);border-radius:var(--radius);overflow:hidden}.code-panel-head{display:flex;align-items:center;gap:6px;padding:12px 16px;border-bottom:1px solid var(--border-soft);background:var(--bg-elev)}.code-lang{margin-left:auto;font-size:.78rem;font-family:var(--font-mono);padding:3px 8px;border-radius:6px;border:1px solid var(--border-soft);background:var(--bg-card);color:var(--text-dim);cursor:pointer}.code-panel-dot{width:10px;height:10px;border-radius:50%;background:#f87171}.code-panel-dot:nth-child(2){background:#fbbf24}.code-panel-dot:nth-child(3){background:#34d399}.code-panel-file{margin-left:8px;font-family:var(--font-mono);font-size:.78rem;color:var(--text-dim);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.code-notes{margin:0;padding:14px 16px;font-size:.88rem;line-height:1.55;color:var(--text-dim);border-bottom:1px solid var(--border-soft)}.code-block{margin:0;padding:16px;overflow:auto;max-height:560px;background:#0b1120;font-family:var(--font-mono);font-size:.8rem;line-height:1.6;color:#e8edf7;white-space:pre-wrap;word-break:break-word;overflow-wrap:anywhere}.tk-comment{color:#6b7697;font-style:italic}.tk-str{color:#fbbf24}.tk-kw{color:#c084fc;font-weight:600}.tk-num{color:#22d3ee}.tk-func{color:#6c8cff}.sa-table{width:100%;border-collapse:collapse;font-family:var(--font-mono);font-size:.82rem;text-align:left}.sa-table th{color:var(--text-dim);font-weight:600;padding:6px 10px;border-bottom:1px solid var(--border-soft);text-align:left}.sa-table td{padding:6px 10px;border-bottom:1px solid var(--border-soft);color:var(--text)}.sa-table .sa-idx{color:var(--text-dim);width:60px}.sa-table .sa-suf{font-weight:600}.sa-table tr.sa-hl td{background:#fbbf2426;color:#fbbf24}.sa-table tr.sa-hl .sa-suf{color:#fbbf24}@media(max-width:1280px){.dsa-layout{grid-template-columns:1fr}.dsa-code{position:static}.code-block{max-height:320px}}.viz-card{background:var(--bg-card);border:1px solid var(--border-soft);border-radius:var(--radius);padding:24px}.viz-stage{background:#0b1120;border:1px solid var(--border-soft);border-radius:var(--radius-sm);min-height:240px;display:flex;align-items:flex-end;justify-content:safe center;gap:6px;padding:22px 18px;overflow-x:auto;position:relative}.viz-stage,.algo-stage-wrap,.pattern-stage,.pattern-card-stage{scrollbar-width:thin}.viz-stage::-webkit-scrollbar,.algo-stage-wrap::-webkit-scrollbar,.pattern-stage::-webkit-scrollbar,.pattern-card-stage::-webkit-scrollbar{height:8px}.viz-controls{display:flex;align-items:center;gap:12px;flex-wrap:wrap;margin-top:18px}.viz-bar{border-radius:6px 6px 0 0;transition:height .18s ease,background .18s ease;flex-shrink:0}.viz-node{transition:all .2s ease}.viz-inline{display:inline-flex;align-items:center;gap:6px;font-size:.88rem;color:var(--text-dim)}.ds-custom-input{width:130px;background:var(--bg-elev);border:1px solid var(--border);color:var(--text);border-radius:8px;padding:5px 8px;font-family:var(--font-mono);font-size:.85rem;outline:none}.ds-custom-input:focus{border-color:var(--primary);box-shadow:0 0 0 2px #6c8cff26}.exec-inputbar{font-size:.85rem;color:var(--text);background:var(--bg-elev);border:1px solid var(--border);border-bottom:none;border-radius:12px 12px 0 0;padding:8px 12px;font-family:var(--font-mono)}.exec-inputbar strong{color:var(--accent);font-family:var(--font-sans);font-size:.78rem;text-transform:uppercase;letter-spacing:.06em;margin-right:6px}.mini-input{width:64px;background:var(--bg-elev);border:1px solid var(--border);color:var(--text);border-radius:8px;padding:8px 10px;font-family:var(--font-mono);outline:none}.mini-input:focus{border-color:var(--primary)}.viz-info{margin-top:18px;font-size:.95rem;color:var(--text-dim);border-top:1px solid var(--border-soft);padding-top:16px;min-height:60px;font-family:var(--font-mono)}.ctrl-btn{padding:9px 16px;border-radius:9px;font-weight:600;font-size:.88rem;background:var(--bg-elev);border:1px solid var(--border);color:var(--text);transition:all .2s ease}.ctrl-btn:hover:not(:disabled){border-color:var(--primary);background:#6c8cff1f}.ctrl-btn:disabled{opacity:.45;cursor:not-allowed}.ctrl-btn.play{background:#ffc93c;border-color:transparent;color:#201803;box-shadow:0 5px 14px #ffc93c66}.ctrl-btn.play:hover:not(:disabled){background:#ffc93c;box-shadow:0 6px 20px #ffc93c8c}.legend{display:flex;gap:16px;flex-wrap:wrap;margin-top:12px;font-size:.82rem;color:var(--text-faint)}.legend .lg{display:flex;align-items:center;gap:7px}.legend .sw{width:14px;height:14px;border-radius:4px;display:inline-block}.select{padding:9px 12px;border-radius:9px;font-weight:600;font-size:.88rem;background:var(--bg-elev);border:1px solid var(--border);color:var(--text);cursor:pointer}.select:focus{border-color:var(--primary);outline:none}.viz-info .ok{color:var(--green);font-weight:700}@media(prefers-reduced-motion:reduce){*{animation-duration:.01ms!important;transition-duration:.01ms!important}}.error-fallback{display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;gap:8px;padding:48px 24px;min-height:320px;background:var(--bg-card);border:1px solid var(--border-soft);border-radius:var(--radius);color:var(--text-dim)}.error-fallback-icon{font-size:2rem;margin-bottom:4px}.error-fallback h3{color:var(--text);font-size:1.05rem}.error-fallback p{font-size:.9rem;max-width:420px}.ad-slot{--ad-min-h: 90px;position:relative;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:4px;width:100%;min-height:var(--ad-min-h);background:var(--bg-soft);border:1px dashed var(--border);border-radius:12px;color:var(--text-faint);overflow:hidden}.ad-slot-label{font-size:.68rem;font-weight:600;letter-spacing:.08em;text-transform:uppercase;color:var(--text-faint)}.ad-slot-size{font-size:.68rem;font-family:var(--font-mono);color:var(--text-faint);opacity:.7}.ad-slot--leaderboard{--ad-min-h: 90px;max-width:728px;margin:0 auto}.ad-slot--banner{--ad-min-h: 90px}.ad-slot--rectangle{--ad-min-h: 200px;max-width:280px;margin:0 auto}.ad-slot--skyscraper{--ad-min-h: 440px;max-width:280px;margin:0 auto}.ad-slot--in-feed{--ad-min-h: 110px}.ad-slot--square{--ad-min-h: 190px;max-width:260px;margin:0 auto}.ad-slot--display{--ad-min-h: 200px;max-width:280px;margin:0 auto}.ad-slot--in-article{--ad-min-h: 140px;max-width:680px;margin:0 auto}.ad-slot--video{--ad-min-h: 0;aspect-ratio:16 / 9;max-width:640px;margin:0 auto;width:100%;position:relative}.ad-slot--native{--ad-min-h: 100px}.ad-slot--interstitial{--ad-min-h: 380px;width:min(560px,92vw)}.ad-slot--sticky{--ad-min-h: 60px;width:100%}.ad-slot-wrap{margin:26px 0}.ad-slot-wrap--tight{margin:14px 0}.page-grid{display:grid;grid-template-columns:minmax(0,1fr);gap:28px;align-items:start}.page-grid.has-rail{grid-template-columns:minmax(0,1fr) 300px}.page-grid.has-rail>.page-content{order:1}.page-grid.has-rail>.ad-rail{order:2}.page-content{min-width:0}.ad-rail{position:sticky;top:84px;display:flex;flex-direction:column;gap:20px}.ad-rail .ad-slot-wrap{margin:0}@media(max-width:1079px){.page-grid.has-rail{grid-template-columns:minmax(0,1fr)}.ad-rail{position:static;flex-direction:row;flex-wrap:wrap;justify-content:center;margin-top:28px}.ad-rail .ad-slot{max-width:340px}}.viz-stage,.algo-stage-wrap,.pattern-stage{width:fit-content;max-width:100%;margin-inline:auto}.ad-interstitial-overlay{position:fixed;inset:0;z-index:300;display:flex;align-items:center;justify-content:center;background:#030812d9;-webkit-backdrop-filter:blur(3px);backdrop-filter:blur(3px);animation:fadeIn .25s ease}.ad-interstitial-card{position:relative;width:min(600px,94vw);background:var(--bg-card);border:1px solid var(--border-soft);border-radius:var(--radius);padding:28px 28px 20px;box-shadow:0 24px 70px #0000008c}.ad-overlay-close{position:absolute;top:10px;right:10px;width:30px;height:30px;border-radius:50%;border:1px solid var(--border-soft);background:var(--bg-elev);color:var(--text-dim);font-size:.85rem;cursor:pointer;z-index:2;transition:all .2s ease}.ad-overlay-close:hover{color:var(--text);border-color:var(--primary)}.ad-sticky-bar{position:fixed;left:0;right:0;bottom:0;z-index:250;display:flex;justify-content:center;background:#040a16eb;border-top:1px solid var(--border-soft);box-shadow:0 -8px 30px #00000059;padding:8px 44px 8px 8px}body:has(.ad-sticky-bar) .footer{padding-bottom:90px}.ad-sticky-bar .ad-slot-wrap{margin:0}.ad-sticky-close{position:absolute;top:6px;right:8px;width:30px;height:30px;border-radius:50%;border:1px solid var(--border-soft);background:var(--bg-elev);color:var(--text-dim);font-size:.8rem;cursor:pointer;transition:all .2s ease}.ad-sticky-close:hover{color:var(--text);border-color:var(--primary)}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}.ad-topband{margin:4px 0 20px}.ad-topband .ad-slot-wrap{margin:0}.ad-midarticle{margin:30px 0}.ad-midarticle .ad-slot-wrap{margin:0}.ad-slot--native{background:var(--bg-card);border:1px solid var(--border-soft);border-radius:var(--radius)}.aff-block{margin:30px 0;padding:20px 22px;background:var(--bg-card);border:1px solid var(--border-soft);border-radius:var(--radius)}.aff-kicker{display:flex;flex-wrap:wrap;gap:8px;align-items:baseline;justify-content:space-between;margin:0 0 6px;font-size:.72rem;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--text-faint)}.aff-disclosure{font-weight:500;letter-spacing:.02em;text-transform:none;opacity:.85}.aff-title{margin:0 0 14px;font-size:1.15rem}.aff-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:12px}.aff-block--compact .aff-grid{grid-template-columns:1fr}.aff-card{display:flex;flex-direction:column;gap:6px;padding:14px 16px;border:1px solid var(--border-soft);border-radius:10px;background:var(--bg-elev);color:inherit;text-decoration:none;transition:border-color .2s ease,transform .2s ease}a.aff-card:hover{border-color:var(--primary);transform:translateY(-2px)}span.aff-card{opacity:.75;border-style:dashed}.aff-card-title{font-size:.95rem}.aff-card-blurb{font-size:.85rem;color:var(--text-dim);flex:1}.aff-card-cta{font-size:.85rem;font-weight:600;color:var(--primary)}.aff-strip{display:flex;flex-wrap:wrap;gap:6px 18px;align-items:baseline;margin-top:18px;padding-top:16px;border-top:1px solid var(--border-soft);font-size:.82rem;color:var(--text-faint)}.aff-strip a{color:var(--text-dim);text-decoration:none}.aff-strip a:hover{color:var(--primary)}.hm-ad-band{padding:6px 0 0}.hm-ad-band .ad-slot-wrap{margin:0}@media(max-width:640px){.ad-slot--leaderboard,.ad-slot--rectangle,.ad-slot--skyscraper,.ad-slot--square,.ad-slot--display{max-width:100%}.ad-slot--skyscraper{--ad-min-h: 250px}}.viz-skeleton{display:flex;align-items:center;justify-content:center;min-height:420px;background:var(--bg-card);border:1px solid var(--border-soft);border-radius:var(--radius);color:var(--text-faint)}.viz-concept{display:flex;flex-direction:column;gap:3px;padding:12px 14px;margin-bottom:14px;background:#6c8cff0f;border:1px solid var(--border-soft);border-left:3px solid var(--primary);border-radius:var(--radius-sm);font-size:.88rem;line-height:1.55;color:var(--text-dim)}.viz-concept .vc-title{color:var(--text);font-weight:700}.viz-concept .vc-bigo{color:var(--accent);font-weight:600;font-family:var(--font-mono);font-size:.78rem;margin-left:6px}.algo-layout{display:block;max-width:100%;overflow-x:clip}.algo-edge-tab{position:fixed;left:0;top:88px;width:32px;height:88px;display:flex;align-items:center;justify-content:center;border:1px solid rgba(108,140,255,.55);border-left:none;border-radius:0 12px 12px 0;background:linear-gradient(135deg,var(--primary),var(--accent));color:#061018;font-size:1.05rem;font-weight:800;cursor:pointer;z-index:56;box-shadow:2px 0 14px #6c8cff59;transition:all .2s ease}.algo-edge-tab:hover{width:44px;box-shadow:2px 0 18px #6c8cff8c}.algo-edge-zone{position:fixed;left:0;top:0;bottom:0;width:18px;z-index:55;cursor:pointer;display:flex;flex-direction:column;align-items:flex-start;background:linear-gradient(90deg,rgba(108,140,255,.07),transparent);transition:background .2s ease,width .2s ease}.algo-edge-hint{margin-top:24px;width:18px;height:34px;display:flex;align-items:center;justify-content:center;pointer-events:none;color:#aebcf5;background:#6c8cff1f;backdrop-filter:blur(6px);-webkit-backdrop-filter:blur(6px);border:1px solid rgba(148,170,255,.22);border-left:none;border-radius:0 9px 9px 0;box-shadow:none;opacity:.75;animation:edge-hint-pulse 3s ease-in-out infinite;transition:opacity .2s ease,background .2s ease,border-color .2s ease,width .2s ease}.algo-edge-hint svg{width:9px;height:9px;display:block;opacity:.9}@keyframes edge-hint-pulse{0%,to{opacity:.55}50%{opacity:.95}}@media(prefers-reduced-motion:reduce){.algo-edge-hint{animation:none}}.algo-layout.layout-shifted .algo-edge-hint{opacity:0;animation:none}.algo-edge-zone:hover{width:26px;background:linear-gradient(90deg,rgba(22,163,74,.18),transparent)}.algo-edge-zone:hover .algo-edge-hint{width:26px;animation:none;opacity:1;background:#16a34a38;border-color:#16a34a66}.algo-sidebar{position:fixed;left:0;top:0;bottom:0;width:260px;padding:18px 6px 14px 12px;background:var(--bg-elev);border-right:1px solid var(--border-soft);box-shadow:8px 0 30px #00000059;overflow:hidden;overscroll-behavior:contain;display:flex;flex-direction:column;transform:translate(-102%);transition:transform .25s ease;z-index:60}.algo-cats{display:flex;flex-direction:column;gap:6px;flex:1 1 auto;min-height:0;overflow-y:auto;overflow-x:hidden;overscroll-behavior:contain;padding-right:2px}.algo-cats>.side-acc-item{flex:1 0 auto}.algo-sidebar.open{transform:translate(0)}.algo-sidebar-title{font-size:.72rem;font-weight:700;text-transform:uppercase;letter-spacing:.1em;color:var(--text-faint);padding:2px 10px 8px;border-bottom:1px solid var(--border-soft);margin-bottom:10px;display:flex;align-items:center;justify-content:space-between;gap:8px}.algo-sidebar-close{flex-shrink:0;width:26px;height:26px;border-radius:50%;border:1px solid var(--border-soft);background:var(--bg-elev);color:var(--text-dim);font-size:.72rem;line-height:1;cursor:pointer;transition:color .2s ease,border-color .2s ease}.algo-sidebar-close:hover{color:var(--text);border-color:var(--primary)}.algo-cats{display:flex;flex-direction:column;gap:6px}.algo-cat{display:flex;align-items:center;justify-content:space-between;gap:8px;width:100%;padding:9px 12px;border-radius:var(--radius-sm);border:1px solid var(--border-soft);background:var(--bg-card);color:var(--text-dim);font-size:.88rem;font-weight:600;text-align:left;transition:all .2s ease}.algo-cat:hover{border-color:var(--primary);color:var(--text)}.algo-cat.active{color:#fff;background:linear-gradient(135deg,var(--primary),var(--accent));border-color:transparent;box-shadow:0 6px 20px #16a34a59}.algo-cat-count{font-family:var(--font-mono);font-size:.72rem;padding:2px 8px;border-radius:999px;background:#ffffff14;color:inherit;flex-shrink:0}.algo-cat-name{flex:1 1 auto;min-width:0;overflow-wrap:break-word;word-break:normal;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;line-clamp:2;overflow:hidden}.algo-sidebar .algo-cat{gap:6px;padding:13px 12px;font-size:.85rem}.algo-sidebar .premium-badge--compact{flex-shrink:0;white-space:nowrap;font-size:.58rem;padding:1px 6px;gap:3px}.algo-sidebar .algo-cat-count{white-space:nowrap}.algo-cat-meta{display:flex;flex-direction:column;align-items:flex-end;gap:3px;flex-shrink:0}.algo-submenu{display:flex;flex-direction:column;gap:10px}.side-acc-item{display:flex;flex-direction:column;gap:4px}.algo-cat .algo-cat-caret{font-size:.62rem;line-height:1;opacity:.75;transition:transform .25s ease;flex-shrink:0}.side-acc-item.open .algo-cat-caret,.side-acc-item.collapsed .algo-cat-caret{transform:rotate(180deg)}.side-acc-collapse{display:grid;grid-template-rows:minmax(0,1fr);overflow:hidden;transition:grid-template-rows .28s cubic-bezier(.22,1,.36,1)}.side-acc-item.collapsed .side-acc-collapse{grid-template-rows:minmax(0,0fr)}.side-acc-item.collapsed .side-acc-collapse[inert]{visibility:hidden}.side-acc-panel{display:flex;flex-direction:column;gap:3px;padding:6px 0 4px 10px;margin:-2px 0 2px;border-left:2px solid rgba(22,163,74,.4);transform-origin:top;animation:acc-emerge .25s ease both;overflow:hidden}@keyframes acc-emerge{0%{opacity:0;transform:translateY(-6px) scaleY(.92)}to{opacity:1;transform:translateY(0) scaleY(1)}}.side-acc-sub-title{flex:1;min-width:0;overflow-wrap:break-word;word-break:normal;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;line-clamp:2;overflow:hidden}.side-acc-sub{display:flex;align-items:center;gap:8px;width:100%;overflow-wrap:break-word;word-break:normal;text-align:left;font-size:.8rem;line-height:1.4;font-weight:500;color:var(--text-dim);padding:9px 10px;border-radius:8px;border:1px solid transparent;background:transparent;transition:all .15s ease;animation:acc-sub-in .28s ease both;animation-delay:calc(var(--sub-i, 0) * 30ms)}@keyframes acc-sub-in{0%{opacity:0;transform:translate(-8px)}to{opacity:1;transform:translate(0)}}.side-acc-sub:hover{background:var(--bg-card);color:var(--text);border-color:var(--border-soft)}.side-acc-sub.active{background:color-mix(in srgb,var(--primary) 16%,transparent);border-color:#16a34a66;color:var(--primary-soft);font-weight:600}.algo-back{display:inline-flex;align-items:center;align-self:flex-start;gap:6px;padding:7px 12px;border-radius:var(--radius-sm);border:1px solid var(--border-soft);background:var(--bg-card);color:var(--text-dim);font-size:.82rem;font-weight:600;cursor:pointer;transition:all .2s ease}.algo-back:hover{border-color:var(--primary);color:var(--text)}.algo-submenu-title{font-size:.95rem;font-weight:800;color:var(--text);padding-bottom:6px;border-bottom:1px solid var(--border-soft)}.algo-submenu-list{display:flex;flex-direction:column;gap:5px}.algo-submenu-list .algo-cat{padding:7px 12px;font-size:.82rem;font-weight:600}.algo-main{min-width:0}.algo-stage-row{display:flex;align-items:flex-start;justify-content:space-between;gap:20px}.home-rail-layout{display:flex;align-items:flex-start;gap:24px}.home-rail-main{flex:1;min-width:0}.home-rail-ads{position:sticky;top:84px;width:300px;flex-shrink:0;display:flex;flex-direction:column}.home-rail-ads .ad-slot-wrap{margin:0 0 20px}@media(max-width:1280px){.home-rail-ads{display:none}}.algo-stage-col{min-width:0;max-width:100%;flex:1 1 auto;width:auto}.algo-ads-col{position:sticky;top:84px;width:280px;flex-shrink:0;display:flex;flex-direction:column}.algo-ads-col .ad-slot-wrap{margin:0 0 12px}.algo-ads-col .ad-slot-wrap:nth-child(n+2){display:none}@media(max-width:1280px){.algo-stage-row{flex-direction:column}.algo-ads-col{position:static;width:100%;flex-direction:row;justify-content:center;flex-wrap:wrap}.algo-ads-col .ad-slot-wrap{margin:0 8px}}.algo-code-block{margin-top:20px;min-width:0;flex:1 1 440px}.algo-code-block .code-panel{max-width:100%;width:100%}.algo-concept{margin-top:20px;width:100%;max-width:100%;background:var(--bg-card);border:1px solid var(--border-soft);border-radius:12px;padding:20px 22px}.algo-concept-title{margin:0;display:inline-block;font-size:1.15rem}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0}.premium-badge{display:inline-flex;align-items:center;gap:5px;background:linear-gradient(135deg,#7a5c14,#b8912f 38%,#d4af37,#b8912f 62%,#7a5c14);-webkit-background-clip:text;background-clip:text;color:transparent;border:1px solid rgba(122,92,20,.6);border-radius:999px;font-weight:700;letter-spacing:.04em;white-space:nowrap}.premium-badge svg{stroke:#8a6d1b}.premium-badge svg{width:11px;height:11px;flex:none}.premium-badge--compact{font-size:.62rem;padding:2px 8px;vertical-align:middle}.premium-badge--full{position:relative;font-size:.72rem;padding:4px 12px;cursor:help;vertical-align:2px}.premium-badge--full .premium-badge-tag{font-style:normal;font-weight:500;opacity:.9}.premium-badge--full.ended{color:var(--text-faint);background:#7884a01a;border-color:#7884a059;cursor:default}.premium-tip{position:absolute;top:calc(100% + 8px);left:0;z-index:30;width:max-content;max-width:min(300px,78vw);padding:8px 11px;border-radius:9px;background:var(--bg-elev);border:1px solid var(--border-soft);box-shadow:var(--shadow-lg);color:var(--text);font-size:.74rem;font-weight:400;letter-spacing:normal;line-height:1.45;text-align:left;white-space:normal;box-shadow:0 8px 24px #0006;opacity:0;transform:translateY(-4px);pointer-events:none;transition:opacity .15s ease,transform .15s ease}.premium-badge--full:hover .premium-tip,.premium-badge--full:focus .premium-tip,.premium-badge--full:focus-visible .premium-tip{opacity:1;transform:translateY(0)}.topic-pager{display:flex;align-items:stretch;justify-content:space-between;gap:10px;margin:22px 0 8px}.topic-pager-btn{display:flex;flex-direction:column;justify-content:center;gap:3px;min-width:0;max-width:min(46%,340px);padding:10px 14px;border-radius:12px;border:1px solid var(--border-soft);background:var(--bg-card);color:var(--text-dim);font:inherit;font-size:.86rem;text-align:left;cursor:pointer;transition:border-color .2s ease,background .2s ease,transform .2s ease,color .2s ease}.topic-pager-btn.next{margin-left:auto;text-align:right;border-color:#6c8cff66;background:color-mix(in srgb,var(--primary) 10%,var(--bg-card))}button.topic-pager-btn:hover{border-color:var(--primary);color:var(--text);transform:translateY(-1px)}button.topic-pager-btn.next:hover{background:color-mix(in srgb,var(--primary) 16%,var(--bg-card));color:var(--text)}button.topic-pager-btn:focus-visible{outline:2px solid var(--primary);outline-offset:2px}.topic-pager-btn.is-disabled{opacity:.38;cursor:default}.topic-pager-dir{display:inline-flex;align-items:center;gap:6px;font-size:.68rem;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--text-faint)}.topic-pager-btn.next .topic-pager-dir{color:var(--primary-soft);justify-content:flex-end}.topic-pager-title{overflow:hidden;text-overflow:ellipsis;white-space:nowrap;font-weight:650}.topic-pager-progress{display:flex;align-items:center;gap:6px;flex-shrink:0;align-self:center}.topic-pager-dot{width:7px;height:7px;border-radius:999px;background:var(--border-soft)}.topic-pager-dot:first-child{width:20px;background:linear-gradient(135deg,var(--primary),var(--accent))}.topic-pager-dot:first-child:before{content:"";display:block;width:6px;height:6px;border-radius:999px;margin:0 auto;background:#061018}@media(max-width:640px){.topic-pager{flex-wrap:wrap}.topic-pager-progress{order:-1;width:100%;justify-content:center;padding-bottom:2px}.topic-pager-btn{max-width:none;flex:1 1 calc(50% - 10px)}.topic-pager-btn.prev.is-disabled{display:none}.topic-pager-title{white-space:normal;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical}}@media(prefers-reduced-motion:reduce){button.topic-pager-btn{transform:none!important}}@media(max-width:560px){.premium-badge--full .premium-badge-tag{display:none}.premium-tip{left:auto;right:0}}.algo-concept-badge{display:inline-block;margin-left:10px;vertical-align:2px;font-size:.72rem;letter-spacing:.05em;text-transform:uppercase;color:var(--accent);border:1px solid var(--border);border-radius:999px;padding:2px 10px}.algo-concept-text{margin:12px 0 0;line-height:1.65;color:var(--text-dim, #9aa7c7)}.algo-concept-note{margin:10px 0 0;padding:10px 14px;border-left:3px solid var(--primary-soft);background:color-mix(in srgb,var(--primary-soft) 6%,transparent);border-radius:0 8px 8px 0;font-size:.85rem;line-height:1.6;color:var(--text-dim, #9aa7c7)}.algo-concept-heading{margin:18px 0 8px;font-size:.95rem;color:var(--accent)}.algo-concept-steps{margin:0;padding-left:20px;line-height:1.7}.algo-concept-steps li{margin-bottom:4px}.algo-concept-example{background:var(--bg-soft);border:1px solid var(--border-soft);border-radius:8px;padding:12px 14px}.algo-concept-input{margin:0 0 8px;display:flex;align-items:center;flex-wrap:wrap;gap:6px}.algo-concept-chips{display:inline-flex;align-items:center;flex-wrap:wrap;gap:4px;color:var(--text)}.algo-chip-inline{display:inline-flex;align-items:center;gap:4px}.algo-chip-sep{color:var(--text-faint, #64748b)}.algo-chip{display:inline-block;min-width:26px;text-align:center;font-family:SF Mono,ui-monospace,monospace;font-size:.85rem;background:var(--bg-elev);border:1px solid var(--border);border-radius:6px;padding:2px 8px}.algo-concept-walk{margin:0;line-height:1.7;font-size:.95rem}.algo-concept-cplx{display:grid;grid-template-columns:repeat(auto-fit,minmax(230px,1fr));gap:10px}.algo-cplx-box{background:var(--bg-soft);border:1px solid var(--border-soft);border-radius:8px;padding:10px 12px;display:flex;flex-direction:column;gap:4px}.algo-cplx-label{font-size:.72rem;letter-spacing:.06em;text-transform:uppercase;color:var(--text-faint, #64748b)}.algo-cplx-value{font-family:SF Mono,ui-monospace,monospace;font-size:.88rem;line-height:1.5}.algo-concept-uses{margin:0;padding-left:20px;line-height:1.7}.algo-concept-uses li{margin-bottom:4px}.algo-sim-row{display:flex;flex-wrap:wrap;gap:18px;align-items:flex-start;margin-top:20px}.algo-sim-row .algo-code-block{margin-top:0}.exec-sim{flex:1 1 560px;min-width:0;max-width:100%;background:var(--bg-card);border:1px solid var(--border-soft);border-radius:12px;padding:16px;container-type:inline-size}.exec-head{display:flex;align-items:baseline;gap:10px;margin-bottom:12px;flex-wrap:wrap}.exec-empty-note{margin:0;padding:26px 20px;border:1px dashed var(--border);border-radius:10px;background:var(--bg-soft);font-size:.9rem;line-height:1.6;color:var(--text-dim);text-align:center}html[data-theme=night] .exec-empty-note{background:#0b112080;color:var(--text-faint)}.exec-empty-note strong{color:var(--accent)}.exec-title{margin:0;font-size:1.05rem}.exec-sub{font-size:.78rem;letter-spacing:.04em;color:var(--text-faint)}.exec-grid{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:12px}@container (max-width: 620px){.exec-sim .exec-grid{grid-template-columns:1fr}}.exec-panel{background:var(--bg-soft);border:1px solid var(--border-soft);border-radius:10px;padding:12px;min-width:0}.exec-panel-title{font-size:.8rem;letter-spacing:.05em;text-transform:uppercase;color:var(--text-dim);margin-bottom:10px;display:flex;align-items:center;justify-content:space-between;gap:8px}.exec-lang-tabs{display:flex;gap:4px}.exec-lang-tab{font-family:inherit;font-size:.72rem;color:var(--text-dim);background:transparent;border:1px solid var(--border);border-radius:6px;padding:2px 8px;cursor:pointer;transition:color .15s ease,border-color .15s ease,background .15s ease}.exec-lang-tab:hover{border-color:var(--accent);color:var(--text)}.exec-lang-tab.active{background:var(--accent);border-color:var(--accent);color:#04141c}.code-line{display:block;white-space:pre-wrap;padding:0 10px;margin:0 -10px;border-left:3px solid transparent;border-radius:4px;transition:background .2s ease,border-color .2s ease}.code-line.code-line-active{background:#22d3ee1f;border-left-color:#22d3ee}.code-line.code-line-active:before{content:"▸ ";color:#22d3ee;font-weight:700}.exec-lines{font-family:SF Mono,ui-monospace,Menlo,monospace;font-size:.82rem;line-height:1.75;overflow-x:auto;white-space:pre}.exec-line{display:flex;gap:10px;padding:0 8px;border-left:3px solid transparent;transition:background .2s ease,border-color .2s ease;border-radius:4px}.exec-line.active{background:#22d3ee1f;border-left-color:var(--accent)}.exec-line.active .exec-ln-text{color:#fff}.exec-line.active:before{content:"▸";color:var(--accent);font-size:.7rem;line-height:1.75rem}.exec-ln{min-width:22px;text-align:right;color:var(--text-faint);-webkit-user-select:none;user-select:none}.exec-stack{display:flex;flex-direction:column;gap:8px;height:280px;overflow-y:auto}.exec-frame{background:var(--bg-elev);border:1px solid var(--border);border-left:3px solid var(--accent);border-radius:8px;padding:8px 12px;animation:exec-frame-in .28s ease}@keyframes exec-frame-in{0%{transform:translateY(-14px);opacity:0}to{transform:translateY(0);opacity:1}}.exec-frame-name{font-family:SF Mono,ui-monospace,Menlo,monospace;font-size:.85rem;color:var(--accent);margin-bottom:4px}.exec-frame-addr{float:right;font-size:.68rem;color:var(--text-faint);font-weight:400}.exec-regs{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:12px}.exec-reg{display:inline-flex;align-items:center;gap:6px;font-family:SF Mono,ui-monospace,Menlo,monospace;font-size:.78rem;color:var(--text-dim);background:var(--bg-soft);border:1px solid var(--border-soft);border-radius:8px;padding:4px 10px}.exec-reg-label{font-size:.68rem;letter-spacing:.08em;color:var(--text-faint);text-transform:uppercase}.exec-regs .exec-op{border-color:var(--accent);color:var(--accent);margin-left:auto}.exec-mem tr.exec-region td{font-size:.66rem;letter-spacing:.06em;text-transform:uppercase;color:var(--primary-soft);background:#16a34a12;padding:5px 8px;border-bottom:1px solid var(--border)}.exec-frame-vars{display:flex;flex-wrap:wrap;gap:4px 12px;font-size:.78rem}.exec-var{font-family:SF Mono,ui-monospace,Menlo,monospace;color:var(--text-dim)}.exec-mem-scroll{overflow-x:auto;height:280px;overflow-y:auto}.exec-mem{width:100%;border-collapse:collapse;font-size:.8rem}.exec-mem th{text-align:left;color:var(--text-faint);font-weight:600;font-size:.72rem;letter-spacing:.05em;text-transform:uppercase;padding:4px 8px;border-bottom:1px solid var(--border)}.exec-mem td{padding:4px 8px;font-family:SF Mono,ui-monospace,Menlo,monospace;border-bottom:1px solid var(--border-soft);white-space:normal;overflow-wrap:anywhere}.exec-mem td.exec-addr{white-space:nowrap}.exec-addr{color:var(--text-faint)}.exec-val.flash{animation:exec-flash .8s ease;color:var(--accent)}@keyframes exec-flash{0%{background:#ffa80066}to{background:transparent}}.exec-controls{display:flex;align-items:center;gap:8px;margin-top:14px;flex-wrap:wrap}.exec-slider{flex:1 1 140px;min-width:120px;accent-color:var(--primary)}@media(max-width:980px){.exec-grid{grid-template-columns:1fr}}.algo-eyebrow{font-size:.78rem;font-weight:700;letter-spacing:.1em;text-transform:uppercase;color:var(--accent);margin-bottom:8px}.algo-head-row{display:flex;align-items:flex-start;justify-content:space-between;gap:16px;flex-wrap:wrap}.browse-btn{display:inline-flex;align-items:center;gap:8px;padding:10px 18px;border-radius:11px;border:1px solid var(--border);background:var(--bg-card);color:var(--text);font-size:.88rem;font-weight:700;white-space:nowrap;flex-shrink:0;transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease;box-shadow:var(--shadow-lg)}.browse-btn:hover{transform:translateY(-2px);border-color:var(--primary);box-shadow:0 8px 22px #16a34a47,var(--shadow-lg)}.browse-btn:active{transform:translateY(1px)}.algo-bigo{display:inline-flex;align-items:center;gap:6px;font-size:.86rem;color:var(--text-dim);background:#16a34a12;border:1px solid rgba(22,163,74,.25);border-radius:999px;padding:6px 14px;margin-top:10px}.algo-bigo strong{color:var(--accent)}.algo-header{margin-bottom:16px}.algo-header h2{font-size:1.5rem;font-weight:800;margin-bottom:6px}.algo-algolist{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:16px;padding:4px 2px;border-radius:14px;background:var(--bg-soft);border:1px solid var(--border-soft);overflow-x:auto;overscroll-behavior-x:contain;scrollbar-width:thin;max-width:100%}.algo-chip{padding:7px 14px;border-radius:999px;font-size:.82rem;font-weight:600;color:var(--text-dim);border:1px solid var(--border-soft);background:var(--bg-card);transition:all .2s ease;white-space:nowrap;flex-shrink:0}.algo-chip:hover{border-color:var(--primary);color:var(--text)}.algo-chip.active{color:#061018;background:linear-gradient(135deg,var(--primary),var(--accent));border-color:transparent}@media(max-width:1080px){.algo-sidebar{max-height:100vh}.algo-cats{flex-direction:row;flex-wrap:wrap}.algo-cat{width:auto}.algo-layout.layout-shifted .algo-content{margin-left:0}}.ds-intro-code{margin-top:4px}.algo-intro-card{position:relative}.algo-intro-flag{display:inline-flex;align-items:center;gap:6px;font-size:.72rem;font-weight:700;letter-spacing:.09em;text-transform:uppercase;color:var(--primary-soft);background:#6c8cff1f;border:1px solid rgba(108,140,255,.3);border-radius:999px;padding:4px 12px;margin-bottom:10px}.algo-intro-tagline{margin:-4px 0 14px;color:var(--text-dim);font-size:1.02rem;font-style:italic}.algo-intro-terms{margin:0 0 18px;display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:10px}.algo-intro-term{background:var(--bg-card);border:1px solid var(--border-soft);border-radius:10px;padding:10px 12px}.algo-intro-term dt{font-weight:700;font-family:var(--font-mono);font-size:.86rem;color:var(--primary-soft);margin-bottom:4px}.algo-intro-term dd{margin:0;font-size:.85rem;line-height:1.5;color:var(--text-dim)}.algo-intro-preview{flex-direction:column;align-items:stretch;margin:4px 0 18px}.algo-intro-caption{margin:12px 4px 0;font-size:.82rem;color:var(--text-faint);font-family:var(--font-mono)}.algo-intro-pitfalls li::marker{color:#f87171}.ds-viz-intro .viz-controls .ctrl-btn,.ds-viz-intro .viz-controls .select,.ds-viz-intro .viz-controls:empty,.ds-viz-intro .exec-controls,.ds-viz-intro .legend,.ds-viz-intro .viz-info{display:none}.algo-content{transition:margin-left .25s ease,max-width .25s ease;min-width:0;max-width:100%}.algo-layout.layout-shifted .algo-content{margin-left:264px;margin-right:12px}@media(max-width:1080px){.algo-layout.layout-shifted .algo-content{margin-left:0}}.algo-stage-wrap{background:#0b1120;border:1px solid var(--border-soft);border-radius:var(--radius-sm);min-height:220px;display:flex;align-items:center;justify-content:flex-start;gap:12px;flex-wrap:wrap;padding:22px 18px;width:100%;max-width:100%;overflow-x:auto}.algo-empty{color:var(--text-faint);font-size:.92rem}.step-counter{margin-left:auto;font-family:var(--font-mono);font-size:.8rem;color:var(--text-faint)}.algo-stage{display:flex;align-items:flex-end;gap:5px;padding-top:8px}.algo-bar-wrap{display:flex;flex-direction:column;align-items:center;justify-content:flex-end;gap:4px}.algo-bar{width:26px;border-radius:6px 6px 0 0;box-sizing:border-box;border:2px solid transparent;transition:height .18s ease,background .18s ease,border-color .18s ease,box-shadow .18s ease}.algo-water{width:26px;background:#22d3ee80;border-radius:4px 4px 0 0}.algo-boxes-wrap{position:relative;display:flex;gap:8px;padding:6px}.algo-window{position:absolute;top:20px;bottom:26px;border:2px solid var(--accent);border-radius:10px;background:#22d3ee12;pointer-events:none}.algo-box-col{display:flex;flex-direction:column;align-items:center;gap:4px;width:52px;position:relative;z-index:1}.algo-ptrs{height:20px;display:flex;gap:3px;justify-content:center;align-items:flex-end}.algo-ptr{font-family:var(--font-mono);font-size:.68rem;font-weight:700;color:#061018;background:var(--accent);padding:1px 6px;border-radius:999px;white-space:nowrap}.algo-ptr-slot{display:inline-block;height:16px}.algo-box{width:52px;height:44px;display:grid;place-items:center;font-family:var(--font-mono);font-size:.95rem;border-radius:8px;border:1px solid var(--border);transition:all .18s ease}.algo-idx{font-family:var(--font-mono);font-size:.68rem;color:var(--text-faint)}.algo-grid{display:inline-flex;flex-direction:column;gap:4px;padding:6px}.algo-grid-row{display:flex;gap:4px}.algo-cell{display:grid;place-items:center;border:1px solid var(--border);border-radius:6px;font-family:var(--font-mono);font-size:.85rem;color:var(--text);transition:all .18s ease}.algo-table-wrap{overflow-x:auto;max-width:100%}.algo-table{border-collapse:separate;border-spacing:2px;font-family:var(--font-mono);font-size:.8rem}.algo-table th,.algo-table td{min-width:34px;height:30px;padding:4px 8px;text-align:center;border-radius:5px;background:var(--bg-elev);color:var(--text-dim);border:1px solid var(--border-soft);max-width:180px;overflow-wrap:anywhere;white-space:normal}.algo-table thead th{color:var(--accent);background:#22d3ee14;font-weight:700}.algo-table th.corner{background:transparent;border:none}.algo-table tbody th{color:var(--text-dim);background:#6c8cff14}.algo-table td.hl,.algo-table th.hl{background:var(--primary);color:#061018;font-weight:700;box-shadow:0 0 12px #6c8cff66}.algo-table td.set{background:var(--green);color:#061018;font-weight:700}.algo-strings{display:flex;flex-direction:column;gap:6px;padding:6px}.algo-chars{display:flex;gap:4px}.algo-char{min-width:34px;height:34px;display:grid;place-items:center;border-radius:6px;border:1px solid var(--border);font-family:var(--font-mono);font-size:.9rem;color:var(--text);transition:all .18s ease}.algo-char.small{min-width:26px;height:26px;font-size:.75rem}.algo-char.cur{box-shadow:0 0 12px #fbbf2480}.algo-char.acc{background:var(--violet);color:#061018}.algo-idx-row{display:flex;gap:4px}.algo-idx-row .algo-idx{min-width:34px;text-align:center}.algo-kmp{display:flex;align-items:center;gap:10px;margin-top:4px}.algo-kmp-label{font-family:var(--font-mono);font-size:.72rem;color:var(--text-faint);white-space:nowrap}.algo-bits{display:flex;flex-direction:column;gap:8px;padding:6px}.algo-bits-row{display:flex;align-items:center;gap:10px}.algo-bits-name{font-family:var(--font-mono);font-size:.78rem;color:var(--text-dim);width:110px;flex-shrink:0;text-align:right}.algo-bits-note{font-family:var(--font-mono);font-size:.7rem;color:var(--text-faint);text-align:center}.algo-intervals{display:flex;flex-direction:column;gap:8px;width:100%;max-width:620px;padding:6px 6px 0}.algo-interval-row{display:grid;grid-template-columns:22px 1fr 120px;align-items:center;gap:10px}.algo-interval-idx{font-family:var(--font-mono);font-size:.72rem;color:var(--text-faint)}.algo-interval-track{position:relative;height:22px;background:var(--bg-elev);border-radius:6px;border:1px solid var(--border-soft)}.algo-interval{position:absolute;top:3px;bottom:3px;border-radius:5px;transition:all .18s ease}.algo-interval-pos{position:absolute;top:2px;bottom:2px;width:2px;background:var(--accent)}.algo-interval-val{font-family:var(--font-mono);font-size:.78rem;color:var(--text-dim)}.algo-axis{height:1px;background:var(--border-soft);margin-top:2px}.algo-tree{display:flex;flex-direction:column;gap:10px;padding:6px}.algo-tree-level{display:flex;justify-content:center;gap:12px}.algo-tree-node{padding:6px 14px;border-radius:8px;font-family:var(--font-mono);font-size:.85rem;color:var(--text);border:1px solid var(--border-soft);min-width:40px;text-align:center;transition:all .18s ease}.algo-geom{width:100%;max-width:640px;height:auto;background:var(--bg-elev);border:1px solid var(--border-soft);border-radius:var(--radius-sm)}.algo-piles{display:flex;gap:18px;padding:6px}.algo-pile{display:flex;flex-direction:column;align-items:center;gap:6px}.algo-pile-stack{display:flex;flex-direction:column-reverse;align-items:center;gap:2px;min-height:120px;justify-content:flex-start}.algo-token{width:16px;height:16px;border-radius:50%;background:var(--amber);opacity:.85}.algo-token.active{opacity:1;box-shadow:0 0 10px #fbbf24cc}.algo-vars{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px}.algo-var-chip{display:inline-flex;align-items:center;gap:8px;padding:6px 12px;border-radius:8px;background:var(--bg-elev);border:1px solid var(--border-soft);font-family:var(--font-mono);font-size:.8rem}.algo-var-key{color:var(--text-faint)}.algo-var-val{color:var(--accent);font-weight:600;word-break:break-all}@media(max-width:640px){.algo-box{width:40px;height:36px;font-size:.8rem}.algo-box-col{width:40px}.algo-char{min-width:26px;height:28px;font-size:.78rem}.algo-interval-row{grid-template-columns:20px 1fr 84px}}.pattern-tabs{display:flex;flex-wrap:wrap;gap:8px;margin:18px 0 22px}.pattern-tab{padding:8px 16px;border-radius:999px;background:var(--bg-card);border:1px solid var(--border-soft);color:var(--text-dim);font-size:.82rem;cursor:pointer;transition:all .15s ease}.pattern-tab:hover{border-color:var(--primary-soft);color:var(--text)}.pattern-tab.active{background:linear-gradient(100deg,var(--primary-soft),var(--accent) 60%,var(--accent));background-clip:text;-webkit-background-clip:text;-webkit-text-fill-color:transparent;border-color:var(--primary-soft)}.pattern-tab .count{background:var(--border-soft);border-radius:999px;padding:1px 7px;font-size:.68rem;margin-left:6px;font-family:var(--font-mono);color:var(--text-dim);-webkit-text-fill-color:var(--text-dim)}.pattern-catalog{display:grid;grid-template-columns:repeat(auto-fill,minmax(288px,1fr));gap:16px}.pattern-card{background:var(--bg-card);border:1px solid var(--border-soft);border-radius:14px;padding:14px;display:flex;flex-direction:column;gap:10px;transition:border-color .15s ease,transform .15s ease}.pattern-card:hover{border-color:var(--primary-soft);transform:translateY(-2px)}.pattern-card-stage{background:#0b1120;border:1px solid var(--border-soft);border-radius:9px;padding:12px;display:flex;justify-content:center;overflow-x:auto}.pattern-card-meta{display:flex;flex-direction:column;gap:2px}.pattern-card-cat{font-size:.68rem;text-transform:uppercase;letter-spacing:.12em;color:var(--accent)}.pattern-card-name{font-size:.95rem;font-weight:600;color:var(--text)}.pattern-card-sub{font-size:.75rem;color:var(--text-faint)}.pattern-card-sub strong{color:var(--text-dim);font-weight:600}.pattern-card-count{font-size:.72rem;color:var(--text-faint);font-family:var(--font-mono)}.pattern-more{display:flex;justify-content:center;margin-top:26px}.pattern-title{font-size:1.15rem;font-weight:600;color:var(--text);margin:0}.pattern-mini{line-height:1.15;font-family:var(--font-mono);color:#4ade80;white-space:pre}.pattern-mini-row{display:block;height:12px;font-size:10px;line-height:12px}.pattern-stage{background:#0b1120;border:1px solid var(--border-soft);border-radius:12px;padding:18px;overflow-x:auto}.pattern-grid{line-height:1.25;font-family:var(--font-mono);display:inline-block;min-width:max-content}.pattern-row{display:flex;height:26px;transition:background-color .18s ease}.pattern-row.highlight{background:color-mix(in srgb,var(--primary-soft) 14%,transparent);border-radius:5px}.pattern-row.current{background:color-mix(in srgb,var(--accent) 10%,transparent);border-radius:5px}.pattern-row.done{background:color-mix(in srgb,var(--primary-soft) 6%,transparent)}.pattern-cell{width:26px;height:26px;display:inline-flex;align-items:center;justify-content:center;font-size:.92rem;color:#4ade80;border-radius:4px;transition:color .15s ease,background-color .15s ease}.pattern-cell.on{color:var(--accent)}.pattern-cell.last{color:var(--accent);text-shadow:0 0 10px color-mix(in srgb,var(--accent) 55%,transparent)}.pattern-cell.blank{color:transparent}.pattern-controls{display:flex;flex-wrap:wrap;gap:14px;align-items:center;justify-content:space-between;margin-top:14px}.pattern-opt{display:flex;flex-direction:column;gap:6px}.pattern-opt-label{font-size:.66rem;text-transform:uppercase;letter-spacing:.14em;color:var(--text-faint)}.pattern-opt-row,.pattern-opt-group{display:flex;gap:6px;flex-wrap:wrap}.pattern-pill{padding:5px 12px;border-radius:999px;border:1px solid var(--border-soft);background:var(--bg-card);color:var(--text-dim);font-size:.78rem;cursor:pointer;transition:all .15s ease}.pattern-pill:hover{border-color:var(--primary-soft);color:var(--text)}.pattern-pill.active{border-color:var(--primary-soft);color:var(--text);background:color-mix(in srgb,var(--primary-soft) 12%,transparent)}.pattern-pill .pill-short{font-family:var(--font-mono);font-size:.72rem;opacity:.75}.pattern-size{display:flex;gap:6px;align-items:baseline;border:1px solid var(--border-soft);background:var(--bg-card);border-radius:999px;padding:3px 6px 3px 12px}.pattern-mode{display:flex;align-items:center;gap:10px;margin:14px 0 4px;flex-wrap:wrap}.pattern-mode-hint{font-size:.74rem;color:var(--text-faint);border-left:1px solid var(--border-soft);padding-left:12px}.size-input{-webkit-appearance:none;appearance:none;width:120px;height:4px;border-radius:2px;background:var(--border-soft);outline:none;cursor:pointer}.size-input::-webkit-slider-thumb{-webkit-appearance:none;width:14px;height:14px;border-radius:50%;background:var(--accent);cursor:pointer}.size-value{font-family:var(--font-mono);font-size:.8rem;color:var(--accent);min-width:18px;text-align:center}.pattern-head{display:flex;align-items:center;gap:12px;flex-wrap:wrap;margin-bottom:4px}.pattern-badge{font-size:.7rem;text-transform:uppercase;letter-spacing:.14em;padding:4px 10px;border-radius:999px;border:1px solid var(--primary-soft);color:var(--primary-soft)}.breadcrumb{font-size:.78rem;color:var(--text-faint);margin:2px 0 18px}.breadcrumb a{color:var(--primary-soft);text-decoration:none}.breadcrumb a:hover{text-decoration:underline}.pattern-card-link{text-decoration:none;color:inherit;display:block}.pattern-ad-native{justify-content:center;align-items:center;min-height:210px;background:color-mix(in srgb,var(--bg-card) 88%,transparent)}.pattern-ad-native .ad-slot-wrap{width:100%}.nav-srch{position:relative;flex:0 0 230px;max-width:32vw;margin-left:8px}.nav-srch-input{display:block;width:100%;padding:8px 12px;background:#fff;border:1px solid #e5e5e5;border-radius:8px;color:#111;font-size:.85rem;font-family:var(--font-sans);outline:none;transition:border-color .2s,box-shadow .2s}.nav-srch-input:focus{border-color:var(--primary);box-shadow:0 0 0 3px #16a34a2e}.nav-srch-input::placeholder{color:#666}.nav-srch-list{position:absolute;top:calc(100% + 6px);left:0;right:0;min-width:340px;list-style:none;padding:6px;margin:0;background:#fff;border:1px solid var(--border-soft);border-radius:10px;box-shadow:var(--shadow-lg);max-height:400px;overflow-y:auto;z-index:150}.nav-srch-item{display:flex;align-items:center;gap:10px;padding:9px 12px;border-radius:6px;cursor:pointer;transition:background .1s}.nav-srch-item:hover,.nav-srch-item.sel{background:#f4f4f5}.nav-srch-ico{font-size:.9rem;width:18px;text-align:center;flex-shrink:0}.nav-srch-txt{display:flex;flex-direction:column;gap:1px;min-width:0}.nav-srch-title{font-size:.85rem;font-weight:500;color:#111;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.nav-srch-meta{display:flex;align-items:center;gap:6px;font-size:.7rem;font-weight:500;text-transform:uppercase;letter-spacing:.05em}.nav-srch-sub{color:var(--text-faint);text-transform:none;letter-spacing:0}.nav-srch-empty{position:absolute;top:calc(100% + 6px);left:0;right:0;padding:20px 16px;text-align:center;color:#666;font-size:.85rem;background:#fff;border:1px solid var(--border-soft);border-radius:10px;box-shadow:var(--shadow-lg);z-index:150}.net-facts{display:grid;gap:10px}.net-fact-row{display:grid;grid-template-columns:190px 1fr;gap:14px;align-items:baseline;padding:9px 12px;border-radius:10px;background:var(--bg-soft);border:1px solid var(--border-soft)}.plp-root pre,.js-root pre,.jlp-root pre,.cl-root pre,.cpp-root pre{color:#e8edf7}.net-scene{background:transparent}html[data-theme=night] .net-scene{background:#0a101e59}.net-fact-key{font-size:.82rem;font-weight:700;color:var(--accent);text-transform:uppercase;letter-spacing:.05em}.net-fact-val{font-size:.92rem;color:var(--text-dim)}@media(max-width:640px){.net-fact-row{grid-template-columns:1fr;gap:4px}}:root{--depth-1: 0 1px 2px rgba(0, 0, 0, .35), 0 6px 18px rgba(0, 0, 0, .28);--depth-2: 0 2px 4px rgba(0, 0, 0, .32), 0 14px 34px rgba(0, 0, 0, .38);--depth-3: 0 3px 6px rgba(0, 0, 0, .3), 0 22px 54px rgba(0, 0, 0, .46), 0 40px 90px rgba(108, 140, 255, .1);--edge-hi: inset 0 1px 0 rgba(255, 255, 255, .07), inset 0 -1px 0 rgba(0, 0, 0, .25)}.bg-glow{animation:bgOrbDrift 26s ease-in-out infinite alternate}.bg-grid{animation:bgGridPan 40s linear infinite;opacity:.55}@keyframes bgOrbDrift{0%{transform:translate3d(-3%,-2%,0) scale(1)}50%{transform:translate3d(3%,3%,0) scale(1.08)}to{transform:translate3d(-2%,2%,0) scale(.97)}}@keyframes bgGridPan{0%{background-position:0 0}to{background-position:220px 220px}}.nav{background:linear-gradient(180deg,#0d1323eb,#0d1323d1);backdrop-filter:blur(16px) saturate(150%);-webkit-backdrop-filter:blur(16px) saturate(150%);box-shadow:var(--depth-2),var(--edge-hi);border-bottom:1px solid rgba(108,140,255,.16)}.logo-badge{transform-style:preserve-3d;transition:transform .5s cubic-bezier(.34,1.56,.64,1);box-shadow:0 4px 10px #6c8cff73,inset 0 2px #ffffff73,inset 0 -3px #00000047}.nav-logo:hover .logo-badge{transform:rotateY(180deg)}.viz-card,.card,.tip-box,.exec-sim,.final-cta,.algo-concept-example,.net-fact-row{transform-style:preserve-3d;box-shadow:var(--depth-1),var(--edge-hi);transition:transform .3s cubic-bezier(.22,.68,.43,1.02),box-shadow .3s ease,border-color .25s ease}.card:hover,.vis-card:hover{transform:translateY(-7px) rotateX(3.5deg) rotateY(-2.5deg);box-shadow:var(--depth-3)}.vis-card:hover{border-color:var(--vc, var(--primary))}.vis-card .vis-ico{display:inline-block;transition:transform .4s cubic-bezier(.34,1.56,.64,1);transform:translateZ(26px)}.vis-card:hover .vis-ico{transform:translateZ(38px) scale(1.15) rotate(-6deg)}.tip-box:hover,.final-cta:hover{transform:translateY(-3px);box-shadow:var(--depth-2)}.viz-card:hover{border-color:#6c8cff59;box-shadow:var(--depth-2)}.viz-stage,.algo-table-wrap,.exec-regs{box-shadow:inset 0 3px 14px #00000073,inset 0 -1px #ffffff0a}.grid-3,.hero-actions,.curriculum-grid{perspective:1300px}.hero-showcase{perspective:1200px}.hero-showcase .mock-viz,.hero-showcase .mock-code{transform-style:preserve-3d;will-change:transform;animation:mockFloat3D 9s ease-in-out infinite;box-shadow:0 30px 70px #00000080,0 8px 20px #0006,var(--edge-hi)}@keyframes mockFloat3D{0%,to{transform:rotateY(-8deg) rotateX(5deg) translateY(0)}50%{transform:rotateY(8deg) rotateX(-3deg) translateY(-12px)}}.btn,.ctrl-btn,.nav-cta,.algo-edge-tab{position:relative;transform-style:preserve-3d;transition:transform .16s ease,box-shadow .2s ease,filter .2s ease;box-shadow:0 4px 12px #00000059,inset 0 1px #ffffff38,inset 0 -2px #00000038}.btn:hover,.ctrl-btn:hover,.nav-cta:hover{transform:translateY(-2px);filter:brightness(1.06);box-shadow:0 8px 20px #0000006b,inset 0 1px #ffffff40,inset 0 -2px #00000038}.btn:active,.ctrl-btn:active,.nav-cta:active{transform:translateY(2px) scale(.985);box-shadow:0 2px 6px #0006,inset 0 1px #ffffff26,inset 0 -1px #0000004d}.ctrl-btn.play{box-shadow:0 5px 14px #ffc93c66}.select{box-shadow:inset 0 2px 6px #00000059,0 1px #ffffff0d}.algo-chip{box-shadow:0 2px #00000047,inset 0 1px #ffffff0f}.algo-chip:hover{transform:translateY(-3px);box-shadow:0 8px 18px #6c8cff47,inset 0 1px #ffffff14}.algo-chip.active{transform:translateY(-1px);box-shadow:0 7px 18px #6c8cff73,inset 0 -3px #00000038,inset 0 1px #ffffff59}.algo-chip:active{transform:translateY(1px)}.algo-sidebar{transform-origin:left center;transform:perspective(1400px) translate(-104%) rotateY(16deg);will-change:transform;background:var(--bg-card);border-right:1px solid var(--border-soft);scrollbar-width:thin;scrollbar-color:rgba(22,163,74,.5) transparent}.algo-sidebar.open{transform:perspective(1400px) translate(0) rotateY(0)}.algo-sidebar::-webkit-scrollbar,.algo-cats::-webkit-scrollbar{width:8px}.algo-sidebar::-webkit-scrollbar-thumb,.algo-cats::-webkit-scrollbar-thumb{background:linear-gradient(180deg,#16a34a8c,#16a34a40);border-radius:99px}.algo-sidebar::-webkit-scrollbar-track,.algo-cats::-webkit-scrollbar-track{background:transparent}.algo-cat{box-shadow:0 2px #0000003d,inset 0 1px #ffffff0d}.algo-cat:hover{transform:translate(4px);box-shadow:0 6px 14px #16a34a40}.algo-cat.active{box-shadow:0 8px 20px #16a34a66,inset 0 -3px #0003}.edge-tab-3d,.algo-edge-tab{box-shadow:3px 0 #00000040,6px 0 22px #16a34a66,inset 0 1px #fff6,inset 0 -2px #00000040}.algo-algolist{overflow-x:auto;overscroll-behavior-x:contain;scrollbar-width:thin}.page-head{margin-bottom:22px}.page-head h1{font-size:clamp(1.7rem,3.4vw,2.3rem);font-weight:800;letter-spacing:-.02em;margin:4px 0 8px}.section-rail{display:flex;align-items:center;justify-content:center;gap:14px;flex-wrap:wrap;margin:34px 0 0}.rail-card{display:flex;align-items:center;gap:10px;padding:12px 18px;border-radius:12px;border:1px solid var(--border-soft);background:var(--bg-card);color:var(--text-dim);font-size:.88rem;font-weight:600;text-decoration:none;transition:transform .2s ease,border-color .2s ease,color .2s ease,box-shadow .2s ease}.rail-card:hover{transform:translateY(-2px);border-color:var(--rc, var(--primary));color:var(--text);box-shadow:0 8px 22px color-mix(in srgb,var(--rc, #6c8cff) 18%,transparent)}.rail-card .rail-ico{font-size:1.05rem}.page-end-cta{margin-top:34px;text-align:center;border:1px solid var(--border);border-radius:18px;padding:30px 26px;background:radial-gradient(480px 180px at 50% 0%,rgba(22,163,74,.08),transparent 70%),var(--bg-card)}.page-end-cta h3{font-size:1.3rem;font-weight:800;letter-spacing:-.01em;margin-bottom:6px}.page-end-cta p{color:var(--text-dim);font-size:.94rem;max-width:520px;margin:0 auto 18px}.page-end-cta .hero-actions{margin-top:0}.section-head h2,.algo-header h2,.final-cta h2{text-shadow:0 1px 0 rgba(0,0,0,.05)}.grad{text-shadow:0 2px 24px rgba(138,109,27,.25)}html[data-theme=night] .section-head h2,html[data-theme=night] .algo-header h2,html[data-theme=night] .final-cta h2{text-shadow:0 1px 0 rgba(0,0,0,.4),0 3px 14px rgba(74,222,128,.18)}html[data-theme=night] .grad{text-shadow:0 2px 24px rgba(212,175,55,.35)}.stat .num{text-shadow:0 2px 0 rgba(0,0,0,.35),0 6px 22px rgba(108,140,255,.3)}.stat{transition:transform .25s ease}.stat:hover{transform:translateY(-3px) translateZ(6px)}.pattern-tile,.pg-tile,[class*=pattern-][class*=tile]{transition:transform .25s ease,box-shadow .25s ease}@media(prefers-reduced-motion:reduce){.bg-glow,.bg-grid,.hero-showcase .mock-viz,.hero-showcase .mock-code{animation:none!important}}@media(max-width:1080px){.algo-sidebar{max-height:calc(100vh - 84px);overscroll-behavior:contain}.algo-edge-zone{display:none}}.hero-sub{max-width:620px;margin:0 auto}.hero-showcase{position:relative;transform-style:preserve-3d;transform:perspective(1100px) rotateY(var(--sry, 0deg)) rotateX(var(--srx, 0deg)) translate(var(--sx, 0px)) translateY(var(--sy, 0px));transition:transform .35s ease-out;will-change:transform}.hero-depth-layer{position:absolute;inset:8% 4%;border-radius:var(--radius);pointer-events:none}.hero-depth-layer.l1{transform:perspective(1100px) rotateY(-10deg) rotateX(4deg) translateZ(-60px);background:linear-gradient(135deg,#6c8cff24,#22d3ee0f);border:1px solid rgba(108,140,255,.22);animation:layerDrift 11s ease-in-out infinite alternate}.hero-depth-layer.l2{inset:14% 9%;transform:perspective(1100px) rotateY(9deg) rotateX(-5deg) translateZ(-120px);background:linear-gradient(315deg,#a78bfa1f,#f472b60d);border:1px solid rgba(167,139,250,.2);animation:layerDrift 13s ease-in-out infinite alternate-reverse}@keyframes layerDrift{0%{transform:perspective(1100px) rotateY(var(--ry, -10deg)) rotateX(4deg) translateZ(-60px) translateY(-6px)}to{transform:perspective(1100px) rotateY(calc(var(--ry, -10deg) * -1)) rotateX(-3deg) translateZ(-60px) translateY(6px)}}.hero-depth-layer.l1{--ry: -10deg}.hero-depth-layer.l2{--ry: 9deg}.hero-cubes{position:absolute;inset:0;overflow:hidden;pointer-events:none;z-index:0}.hero-nebula{overflow:visible}.hero .container{position:relative;z-index:1}.hero-space.space-backdrop{position:fixed;inset:0;z-index:-1;pointer-events:none}.hero{position:relative;overflow:hidden}.hero-space{position:absolute;inset:0;z-index:0;pointer-events:none}.hero-nebula{position:absolute;inset:0;z-index:0;pointer-events:none;overflow:hidden}.hero-binary{position:absolute;inset:0;z-index:0;pointer-events:none;opacity:.9;-webkit-mask-image:linear-gradient(to bottom,#000 55%,transparent 98%);mask-image:linear-gradient(to bottom,#000 55%,transparent 98%)}.hero-copy{text-align:center;max-width:840px;margin:0 auto}.hero-copy .hero-actions{justify-content:center}.nebula{position:absolute;border-radius:50%;filter:blur(70px);opacity:.5;mix-blend-mode:screen}.nebula.n1{width:46vw;height:46vw;max-width:640px;max-height:640px;left:-12%;top:-18%;background:radial-gradient(circle,#6c8cff4d,#6c8cff00 65%);animation:nebulaDrift 26s ease-in-out infinite alternate}.nebula.n2{width:40vw;height:40vw;max-width:560px;max-height:560px;right:-14%;bottom:-22%;background:radial-gradient(circle,#a78bfa42,#a78bfa00 65%);animation:nebulaDrift 32s ease-in-out infinite alternate-reverse}@keyframes nebulaDrift{0%{transform:translateZ(0) scale(1)}to{transform:translate3d(4%,6%,0) scale(1.12)}}.shooting{position:absolute;top:12%;left:-10%;width:150px;height:2px;border-radius:2px;background:linear-gradient(90deg,#fff0,#ffffffe6,#fff0);opacity:0;transform:rotate(14deg);animation:shoot 9s ease-in infinite;animation-delay:3s}.shooting.s2{top:42%;animation-delay:7.5s;animation-duration:11s;transform:rotate(10deg)}@keyframes shoot{0%{opacity:0;transform:translate(0) rotate(14deg)}4%{opacity:.9}12%{opacity:0;transform:translate(130vw) rotate(14deg)}to{opacity:0;transform:translate(130vw) rotate(14deg)}}.cube-scene{position:absolute;width:var(--cs, 92px);height:var(--cs, 92px);perspective:700px;transform:translate3d(var(--cx, 0),var(--cy, 0),0)}.cube{position:relative;width:100%;height:100%;transform-style:preserve-3d;animation:cubeTumble var(--cd, 16s) linear infinite}.cf{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;font-style:normal;font-size:calc(var(--cs, 92px) * .4);background:linear-gradient(135deg,#6c8cff29,#22d3ee1a);border:1px solid rgba(108,140,255,.35);border-radius:14px;-webkit-backdrop-filter:blur(2px);backdrop-filter:blur(2px);box-shadow:inset 0 0 22px #6c8cff1f}.f-front{transform:translateZ(calc(var(--cs, 92px) / 2))}.f-back{transform:rotateY(180deg) translateZ(calc(var(--cs, 92px) / 2))}.f-right{transform:rotateY(90deg) translateZ(calc(var(--cs, 92px) / 2))}.f-left{transform:rotateY(-90deg) translateZ(calc(var(--cs, 92px) / 2))}.f-top{transform:rotateX(90deg) translateZ(calc(var(--cs, 92px) / 2))}.f-bottom{transform:rotateX(-90deg) translateZ(calc(var(--cs, 92px) / 2))}.cube-a{--cs: 84px;--cd: 17s;top:4%;left:1.5%;--cx: 0px;--cy: 0px;animation:cubeFloat 7s ease-in-out infinite alternate}.cube-b{--cs: 64px;--cd: 12s;top:58%;right:7%;--cx: 0px;--cy: 0px;animation:cubeFloat 9s ease-in-out infinite alternate-reverse}@keyframes cubeTumble{0%{transform:rotateX(0) rotateY(0) rotate(0)}to{transform:rotateX(360deg) rotateY(720deg) rotate(0)}}@keyframes cubeFloat{0%{transform:translate3d(0,-10px,0)}to{transform:translate3d(0,10px,0)}}.cube-a{transform:translate3d(calc(var(--cx, 0px) - var(--sx, 0px) * 1.4),calc(var(--cy, 0px) - var(--sy, 0px) * 1.4),0)}.cube-b{transform:translate3d(calc(var(--cx, 0px) - var(--sx, 0px) * 2.2),calc(var(--cy, 0px) - var(--sy, 0px) * 2.2),0)}@media(max-width:1080px){.cube-b{display:none}.cube-a{--cs: 52px;top:6%;left:2%;opacity:.75}}@media(max-width:520px){.hero-cubes{display:none}}@media(prefers-reduced-motion:reduce){.cube,.cube-a,.cube-b{animation:none!important}.hero-showcase{transform:none!important}.nebula,.shooting{animation:none!important}.shooting{display:none}}.home-with-space{position:relative;z-index:0}.home-with-space .section,.home-with-space .page-end-cta{background:transparent}.home-with-space .portal-card,.home-with-space .cap-strip,.home-with-space .cap-item{background:var(--bg-card)}.portal-grid{display:grid;grid-template-columns:repeat(6,1fr);gap:16px;perspective:1400px}.portal-grid>*{min-width:0}.portal-grid>*:nth-child(-n+3){grid-column:span 2}.portal-grid>*:nth-child(n+4){grid-column:span 3}@media(max-width:980px){.portal-grid{grid-template-columns:repeat(2,1fr)}.portal-grid>*{grid-column:auto!important}}@media(max-width:560px){.portal-grid{grid-template-columns:1fr}}.portal-card{position:relative;display:flex;flex-direction:column;gap:8px;padding:22px 20px 18px;border-radius:var(--radius);border:1px solid var(--border-soft);background:var(--bg-card);text-decoration:none;overflow:hidden;transform-style:preserve-3d;transition:transform .32s cubic-bezier(.22,.68,.43,1.02),box-shadow .32s ease,border-color .25s ease;box-shadow:var(--shadow-lg)}.portal-card:before{content:"";position:absolute;inset:0;background:linear-gradient(115deg,transparent 30%,rgba(255,255,255,.07) 46%,transparent 62%);transform:translate(-120%);transition:transform .7s ease;pointer-events:none}.portal-card:hover:before{transform:translate(120%)}.portal-card:hover{transform:translateY(-8px) rotateX(3deg);border-color:var(--pc, var(--primary));box-shadow:0 3px 6px #0000004d,0 24px 50px #00000073,0 30px 70px color-mix(in srgb,var(--pc, #6c8cff) 16%,transparent)}.portal-top{display:flex;align-items:center;justify-content:space-between}.portal-ico{font-size:1.7rem;line-height:1;display:inline-block;filter:drop-shadow(0 6px 12px color-mix(in srgb,var(--pc, #6c8cff) 45%,transparent));transition:transform .45s cubic-bezier(.34,1.56,.64,1);transform:translateZ(24px)}.portal-card:hover .portal-ico{transform:translateZ(40px) scale(1.18) rotate(-7deg)}.portal-count{font-family:var(--font-mono);font-size:.72rem;padding:4px 10px;border-radius:999px;color:var(--pc, var(--primary));background:color-mix(in srgb,var(--pc, #6c8cff) 12%,transparent);border:1px solid color-mix(in srgb,var(--pc, #6c8cff) 32%,transparent);white-space:normal;line-height:1.35;text-align:right;min-width:0;overflow-wrap:anywhere}.portal-card h3{margin:6px 0 0;font-size:1.08rem;color:var(--text)}.portal-card p{margin:0;font-size:.88rem;color:var(--text-dim);flex:1}.portal-go{margin-top:10px;font-size:.82rem;font-weight:700;color:var(--pc, var(--primary));opacity:0;transform:translate(-6px);transition:opacity .25s ease,transform .25s ease}.portal-card:hover .portal-go{opacity:1;transform:translate(0)}.cap-section{padding-top:0}.cap-strip{display:grid;grid-template-columns:repeat(auto-fit,minmax(230px,1fr));gap:14px;padding:20px 22px;border-radius:var(--radius);border:1px solid var(--border-soft);background:var(--bg-card);box-shadow:var(--shadow-lg)}.cap-item{display:flex;align-items:center;gap:12px;font-size:.9rem;color:var(--text-dim);font-weight:600;padding:8px 10px;border-radius:10px;background:var(--bg-soft);border:1px solid var(--border-soft)}.cap-ico{width:34px;height:34px;flex:0 0 34px;display:grid;place-items:center;border-radius:10px;font-size:.95rem;font-weight:800;color:var(--primary-soft, #9db4ff);background:#6c8cff1f;border:1px solid rgba(108,140,255,.28);box-shadow:inset 0 1px #ffffff26,0 3px 8px #0000004d}@media(prefers-reduced-motion:reduce){.hero-depth-layer{animation:none!important}}.learn-langs{display:flex;gap:10px;flex-wrap:wrap;align-items:center;margin-bottom:22px}.learn-lang{display:inline-flex;align-items:center;gap:8px;padding:10px 20px;border-radius:999px;border:1px solid rgba(108,140,255,.35);background:linear-gradient(135deg,var(--primary),var(--accent));color:#061018;font-size:.95rem;font-weight:800;cursor:default;box-shadow:0 6px 18px #6c8cff59,inset 0 -3px #0003,inset 0 1px #ffffff59}.learn-lang.soon{background:var(--bg-card);color:var(--text-faint);border-color:var(--border-soft);box-shadow:none;cursor:not-allowed;opacity:.75}.learn-lang .soon-tag{font-size:.62rem;text-transform:uppercase;letter-spacing:.08em;padding:2px 8px;border-radius:999px;background:#94a3b826;border:1px solid var(--border-soft)}.sql-code{border:1px solid var(--border-soft);border-radius:12px;overflow:hidden;background:#0b1120;box-shadow:inset 0 2px 14px #0006}.sql-code-head{display:flex;align-items:center;gap:6px;padding:8px 14px;background:#141d31e6;border-bottom:1px solid var(--border-soft)}.sql-code-dot{width:10px;height:10px;border-radius:50%}.sql-code-title{margin-left:8px;font-family:var(--font-mono);font-size:.72rem;color:#a9b8d0}.sql-code pre{margin:0;padding:14px 16px;overflow-x:auto;font-family:var(--font-mono);font-size:.86rem;line-height:1.65;white-space:pre-wrap;word-break:break-word}.sql-code-line{white-space:pre-wrap;word-break:break-word}.sql-code-line .sql-code-ln{display:inline-block;white-space:normal}.sql-code-ln{display:inline-block;width:2ch;margin-right:14px;color:#33405e;text-align:right;-webkit-user-select:none;user-select:none}.sql-scene-wrap{position:relative}.sql-scene-scroll{width:100%;overflow-x:auto;scrollbar-width:thin;border-radius:12px}.sql-scene-scroll svg{min-width:560px}.sql-scene-expand{position:absolute;top:8px;right:8px;width:30px;height:30px;display:grid;place-items:center;border-radius:8px;border:1px solid rgba(108,140,255,.35);background:#0d1323d1;color:#9db4ff;font-size:1rem;line-height:1;cursor:pointer;opacity:.85;transition:opacity .15s ease,border-color .15s ease,color .15s ease;z-index:2}.sql-scene-expand:hover,.sql-scene-expand:focus-visible{opacity:1;border-color:var(--primary);color:var(--text)}.sql-scene-lightbox{position:fixed;inset:0;z-index:300;display:grid;place-items:center;padding:28px;background:#040810db;backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px)}.sql-scene-lightbox-inner{width:min(1280px,100%);max-height:100%;display:flex;flex-direction:column;gap:10px}.sql-scene-lightbox-head{display:flex;align-items:center;justify-content:space-between;font-size:.78rem;font-weight:700;text-transform:uppercase;letter-spacing:.1em;color:var(--text-faint)}.sql-scene-close{width:32px;height:32px;display:grid;place-items:center;border-radius:8px;border:1px solid rgba(108,140,255,.35);background:#0d1323e6;color:#9db4ff;font-size:.95rem;cursor:pointer}.sql-scene-close:hover{border-color:var(--primary);color:var(--text)}.sql-scene-lightbox-stage{min-height:0;overflow:auto;padding:18px;border-radius:16px;border:1px solid rgba(108,140,255,.25);background:#0a101eeb}.sql-example-label{margin-top:14px;margin-bottom:8px;font-size:.72rem;font-weight:700;text-transform:uppercase;letter-spacing:.08em;color:var(--text-faint)}.sql-table-wrap{border:1px solid var(--border-soft);border-radius:12px;overflow-x:auto;background:#0b1120;box-shadow:inset 0 2px 12px #00000059}.sql-table-wrap.compact{max-width:100%}.sql-table{width:100%;border-collapse:collapse;font-family:var(--font-mono);font-size:.82rem}.sql-table th{text-align:left;padding:9px 14px;background:#6c8cff1a;color:#9db4ff;border-bottom:1px solid rgba(108,140,255,.25);white-space:nowrap}.sql-table td{padding:8px 14px;color:#e8edf7;border-bottom:1px solid rgba(51,64,94,.45);white-space:normal;overflow-wrap:break-word}.sql-scene-wrap td{padding:5px 8px;white-space:nowrap;overflow-wrap:normal;font-size:.78rem}.sql-table tbody tr:last-child td{border-bottom:none}.sql-table tbody tr.hl td{background:#fbbf241a}.sql-table-more{padding:7px 14px;font-family:var(--font-mono);font-size:.72rem;color:#8a94ad}@media(max-width:640px){.sql-table th{white-space:normal;overflow-wrap:anywhere}}.sql-ok{padding:12px 16px;border-radius:10px;border:1px solid rgba(52,211,153,.3);background:#34d39914;color:var(--green, #34d399);font-family:var(--font-mono);font-size:.85rem}.sql-walkthrough{margin:12px 0 0;font-size:.92rem;color:var(--text-dim);line-height:1.6}.learn-lang.live{background:var(--bg-card);color:var(--text-dim);border:1px solid var(--border-soft);box-shadow:none;cursor:pointer;opacity:1;transition:all .2s ease}.learn-lang.live:hover{border-color:var(--primary);color:var(--text);transform:translateY(-1px)}.py-topic-list{display:flex;flex-direction:column;gap:3px;margin:6px 0 10px;padding-left:10px;border-left:1px solid var(--border-soft)}.py-topic-item{display:flex;gap:7px;align-items:baseline;width:100%;min-width:0;text-align:left;font-size:.8rem;line-height:1.45;color:var(--text-dim);padding:9px 10px;border-radius:8px;border:1px solid transparent;transition:all .15s ease}.py-topic-item:hover{background:var(--bg-card);color:var(--text)}.py-topic-item.active{background:color-mix(in srgb,var(--primary) 14%,transparent);border-color:#16a34a59;color:var(--primary-soft)}.py-tick{color:var(--green);font-size:.7rem;flex-shrink:0}.py-topic-item>span:last-child{min-width:0;overflow-wrap:break-word;word-break:normal;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;line-clamp:2;overflow:hidden}.py-steps{position:relative;margin:4px 0 0;padding:0;list-style:none}.py-step{position:relative;padding:0 0 18px 38px}.py-step:last-child{padding-bottom:0}.py-step:before{content:"";position:absolute;left:13px;top:28px;bottom:2px;width:1px;background:var(--border-soft)}.py-step:last-child:before{display:none}.py-step-num{position:absolute;left:0;top:0;width:27px;height:27px;border-radius:999px;display:flex;align-items:center;justify-content:center;font-family:var(--font-mono);font-size:.72rem;font-weight:700;color:var(--accent);background:color-mix(in srgb,var(--accent) 12%,transparent);border:1px solid rgba(34,211,238,.35)}.py-step-title{font-size:.92rem;font-weight:700;color:var(--text)}.py-step-detail{margin:4px 0 0;font-size:.85rem;line-height:1.6;color:var(--text-dim)}.py-output{border:1px solid var(--border-soft);border-radius:10px;background:#0b1120;padding:12px 16px;overflow-x:auto}.py-output-label{font-family:var(--font-mono);font-size:.66rem;text-transform:uppercase;letter-spacing:.12em;color:var(--text-faint);margin-bottom:6px}.py-output pre{margin:0;font-family:var(--font-mono);font-size:.82rem;line-height:1.55;color:var(--accent);white-space:pre-wrap}.py-walk{display:flex;flex-direction:column;gap:8px;margin-top:14px}.py-walk-item{display:flex;gap:10px;font-size:.85rem;line-height:1.6;color:var(--text-dim)}.py-walk-num{flex-shrink:0;width:20px;height:20px;margin-top:2px;border-radius:999px;display:flex;align-items:center;justify-content:center;font-family:var(--font-mono);font-size:.66rem;font-weight:700;color:var(--amber);background:color-mix(in srgb,var(--amber) 12%,transparent)}.py-cases{display:flex;flex-direction:column;gap:12px}.py-case{background:var(--bg-card);border:1px solid var(--border-soft);border-radius:12px;padding:16px 18px}.py-case-title{margin:0 0 4px;font-size:.9rem;font-weight:700;color:var(--text)}.py-case-exp{margin:0 0 12px;font-size:.83rem;line-height:1.6;color:var(--text-dim)}.py-complexity{display:flex;gap:10px;flex-wrap:wrap}.py-cx-chip{font-family:var(--font-mono);font-size:.8rem;padding:7px 14px;border-radius:10px;background:var(--bg-card);border:1px solid var(--border-soft);color:var(--text-dim)}.py-cx-chip b{color:var(--amber);font-weight:700}.py-cx-note{margin:10px 0 0;font-size:.85rem;line-height:1.6;color:var(--text-dim)}.py-usecases{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:8px}.py-usecase{display:flex;gap:9px;align-items:flex-start;font-size:.85rem;line-height:1.55;color:var(--text-dim);background:var(--bg-card);border:1px solid var(--border-soft);border-radius:10px;padding:10px 12px}.py-usecase-dot{color:var(--amber);flex-shrink:0}.ad-video-dock{position:fixed;right:16px;bottom:84px;z-index:90;width:min(340px,calc(100vw - 32px));background:var(--bg-card);border:1px solid var(--border-soft);border-radius:14px;overflow:hidden;box-shadow:0 18px 50px #00000073;animation:ad-dock-in .4s cubic-bezier(.22,1,.36,1)}@keyframes ad-dock-in{0%{opacity:0;transform:translateY(14px) scale(.96)}to{opacity:1;transform:translateY(0) scale(1)}}.ad-video-head{display:flex;align-items:center;justify-content:space-between;padding:6px 10px;background:#00000040}.ad-video-tag{font-size:.72rem;letter-spacing:.05em;color:var(--text-faint);text-transform:uppercase}.ad-video-actions{display:flex;gap:4px}.ad-video-btn{border:none;background:transparent;color:var(--text-dim);font-size:.9rem;width:26px;height:26px;border-radius:7px;cursor:pointer;display:grid;place-items:center}.ad-video-btn:hover{background:#ffffff14;color:var(--text)}.ad-video-dock .ad-slot--video{max-width:none}.ad-overlay-skip{display:block;margin:12px auto 0;border:1px solid var(--border-soft);background:transparent;color:var(--text-dim);font-size:.85rem;padding:8px 18px;border-radius:999px;cursor:pointer;transition:color .2s,border-color .2s}.ad-overlay-skip:hover{color:var(--text);border-color:var(--primary)}.ad-native{display:flex;align-items:center;gap:14px;padding:14px 16px;border-radius:14px;background:var(--bg-card);border:1px solid var(--border-soft);transition:border-color .25s,transform .25s}.ad-native:hover{border-color:var(--primary);transform:translateY(-2px)}.ad-native-thumb{width:74px;height:74px;border-radius:10px;display:grid;place-items:center;font-size:1.7rem;background:#6c8cff1f;flex-shrink:0}.ad-native-thumb--amber{background:#ffb0201f}.ad-native-body{flex:1;min-width:0}.ad-native-title{display:block;font-weight:600;margin:0 0 4px;color:var(--text);font-size:.98rem}.ad-native-desc{display:block;margin:0;color:var(--text-dim);font-size:.85rem;line-height:1.45}.ad-native-cta{flex-shrink:0;color:var(--primary);font-weight:600;font-size:.9rem;white-space:nowrap}.ad-slot:has(.ad-native){background:transparent;border:none;padding:0;min-height:0}.ad-slot .ad-native{position:relative;width:100%}.ad-demo-tag{position:absolute;top:6px;right:8px;font-size:.6rem;font-weight:800;letter-spacing:.08em;text-transform:uppercase;color:var(--text-faint);border:1px solid var(--border-soft);border-radius:999px;padding:1px 7px}@media(max-width:640px){.ad-native-cta{display:none}.ad-video-dock{width:min(280px,calc(100vw - 24px));right:12px}}.hm-hero-showcase .mock-viz{animation-duration:12s}.hm-stage{height:190px}.hm-bar{flex:1;min-width:6px;border-radius:6px 6px 0 0;background:linear-gradient(180deg,var(--primary),rgba(108,140,255,.3));transition:height .28s cubic-bezier(.22,1,.36,1),background .2s ease}.hm-bar.is-compare{background:linear-gradient(180deg,var(--accent),rgba(34,211,238,.35))}.hm-bar.is-swap{background:linear-gradient(180deg,var(--violet),rgba(167,139,250,.35));transform:scale(1.06)}.hm-bar.is-sorted{background:linear-gradient(180deg,var(--green, #34d399),rgba(52,211,153,.35))}.hm-bar.is-found{background:linear-gradient(180deg,var(--green, #34d399),rgba(52,211,153,.5));transform:scale(1.08);box-shadow:0 0 18px #34d39973}.hm-bar.is-out{opacity:.28;filter:saturate(.4)}.hm-marks{display:flex;gap:0;margin-top:6px}.hm-mark{flex:1;min-width:6px;display:flex;flex-direction:column;align-items:center;gap:2px;min-height:20px;font-size:.62rem;font-style:normal}.hm-mark em{font-style:normal;font-weight:700;padding:0 5px;border-radius:999px;border:1px solid var(--border);background:var(--bg-soft);color:var(--text-dim)}.hm-mark-mid{color:var(--violet)!important;border-color:#a78bfa80!important}.hm-mark-lo,.hm-mark-hi{color:var(--accent)!important;border-color:#22d3ee66!important}.hm-mark-found{color:var(--green, #34d399)!important;border-color:#34d39980!important}.hm-sw-sorted{background:var(--green, #34d399)!important}.hm-controls{display:flex;align-items:center;flex-wrap:wrap;gap:8px;margin-top:14px}.hm-select-label{display:inline-flex;align-items:center;gap:7px;font-size:.78rem;font-weight:600;color:var(--text-faint)}.hm-select{font:inherit;font-size:.82rem;color:var(--text);background:var(--bg-card);border:1px solid var(--border-soft);border-radius:9px;padding:6px 9px;cursor:pointer}.hm-select:focus-visible,.hm-ctl:focus-visible{outline:2px solid var(--primary);outline-offset:2px}.hm-ctl{font:inherit;font-size:.8rem;font-weight:600;color:var(--text-dim);background:var(--bg-card);border:1px solid var(--border-soft);border-radius:9px;padding:6px 12px;cursor:pointer;transition:border-color .15s ease,color .15s ease,transform .15s ease}.hm-ctl:hover:not(:disabled){border-color:var(--primary);color:var(--text);transform:translateY(-1px)}.hm-ctl:disabled{opacity:.45;cursor:not-allowed}.hm-ctl-primary{color:#201803;background:#ffc93c;border-color:transparent}.hm-ctl-primary:hover:not(:disabled){color:#201803;border-color:transparent;background:#ffc93c;box-shadow:0 6px 20px #ffc93c8c}.hm-promo-section{padding-top:34px}.hm-promo{display:flex;align-items:center;justify-content:space-between;gap:28px;padding:26px 30px;border-radius:20px;background:radial-gradient(600px 200px at 12% 0%,rgba(232,196,104,.14),transparent 60%),linear-gradient(135deg,#e8c46814,#6c8cff12);border:1px solid rgba(232,196,104,.35);box-shadow:0 18px 50px #00000059}.hm-promo-badge{display:inline-flex;align-items:center;gap:7px;font-size:.72rem;font-weight:700;letter-spacing:.09em;text-transform:uppercase;color:#e8c468;background:#e8c4681f;border:1px solid rgba(232,196,4,.35);border-radius:999px;padding:5px 13px;margin-bottom:12px}.hm-promo-badge .hm-promo-flame{font-size:.85rem}.hm-promo h2{font-size:1.45rem;font-weight:800;line-height:1.25;margin-bottom:8px}.hm-promo p{color:var(--text-dim);font-size:.95rem;max-width:560px}.hm-promo-action{flex-shrink:0;display:flex;flex-direction:column;align-items:center;gap:9px}.hm-promo-btn{white-space:nowrap}.hm-promo-note{font-size:.76rem;color:var(--text-faint)}@media(max-width:820px){.hm-promo{flex-direction:column;text-align:center;padding:26px 20px}.hm-promo p{margin-inline:auto}}.hm-topics{display:grid;grid-template-columns:repeat(auto-fill,minmax(230px,1fr));gap:16px}.hm-topic{display:flex;flex-direction:column;gap:8px;height:100%;padding:20px;border-radius:16px;background:var(--bg-card);border:1px solid var(--border-soft);transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease}.hm-topic:hover{transform:translateY(-4px);border-color:var(--primary);box-shadow:0 16px 40px #6c8cff29}.hm-topic h3{font-size:1.02rem;font-weight:700}.hm-topic p{font-size:.86rem;color:var(--text-dim);line-height:1.5;flex:1}.hm-topic-icon{display:inline-flex;width:52px;height:38px;align-items:center;justify-content:center;border-radius:10px;background:#6c8cff1a;border:1px solid rgba(108,140,255,.22);font-size:1.45rem}.hm-topic-icon svg{width:40px;height:27px;fill:none;stroke:var(--primary-soft, #9db1ff);stroke-width:1.8}.hm-topic-icon svg path[stroke-linecap],.hm-topic-icon svg circle{fill:#6c8c0500}.hm-topic-go{font-size:.82rem;font-weight:650;color:var(--primary-soft, #9db1ff);margin-top:4px}.hm-topic:hover .hm-topic-go{color:var(--text)}.hm-topic:hover .hm-topic-go span{display:inline-block;transform:translate(4px);transition:transform .2s ease}.hm-steps{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:16px;counter-reset:hm-step}.hm-step{position:relative;height:100%;padding:22px;border-radius:16px;background:var(--bg-card);border:1px solid var(--border-soft)}.hm-step-num{display:inline-flex;align-items:center;justify-content:center;width:34px;height:34px;border-radius:999px;font-weight:800;font-size:.95rem;color:#061018;background:linear-gradient(135deg,var(--primary),var(--accent));margin-bottom:12px}.hm-step h3{font-size:1rem;font-weight:700;margin-bottom:6px}.hm-step p{font-size:.87rem;color:var(--text-dim);line-height:1.5}.hm-benefits{display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:16px}.hm-benefit{height:100%;padding:22px;border-radius:16px;background:var(--bg-card);border:1px solid var(--border-soft);transition:transform .2s ease,border-color .2s ease}.hm-benefit:hover{transform:translateY(-3px);border-color:#6c8cff73}.hm-benefit-ico{font-size:1.4rem;display:inline-block;margin-bottom:10px}.hm-benefit h3{font-size:.98rem;font-weight:700;margin-bottom:6px}.hm-benefit p{font-size:.86rem;color:var(--text-dim);line-height:1.5}@media(max-width:640px){.hm-stage{height:150px}.hm-controls{gap:6px}.hm-select-label span{display:none}.hm-topics{grid-template-columns:repeat(auto-fill,minmax(160px,1fr));gap:12px}.hm-topic{padding:16px}.hm-topic-icon{width:44px;height:32px}.hm-topic-icon svg{width:32px;height:22px}}@media(prefers-reduced-motion:reduce){.hm-bar{transition:none}.hm-hero-showcase .mock-viz{animation:none}.hm-topic,.hm-benefit,.hm-ctl{transition:none}}h1.algo-eyebrow{font-size:.82rem;margin:0 0 6px}.nf-wrap{text-align:center;padding:90px 0 70px}.nf-code{font-family:var(--font-mono);font-size:clamp(72px,14vw,140px);font-weight:800;line-height:1;background:linear-gradient(135deg,var(--primary),var(--accent));-webkit-background-clip:text;background-clip:text;color:transparent;margin:0 0 8px}.nf-wrap h1{font-size:1.6rem;margin:0 0 4px}.nf-links{display:flex;flex-wrap:wrap;gap:10px;justify-content:center}@media(max-width:560px){.nf-links .btn{flex:1 1 40%}}.cq-hub-stats{display:flex;flex-wrap:wrap;gap:10px 22px;margin-top:14px;font-size:.86rem;color:var(--text-dim)}.cq-hub-stats strong{color:var(--text);font-family:var(--font-mono);font-size:1rem;margin-right:4px}.cq-hub-how{display:grid;grid-template-columns:repeat(auto-fit,minmax(230px,1fr));gap:14px;margin:22px 0 6px}.cq-hub-step{display:flex;gap:12px;padding:14px 16px;border:1px solid var(--border-soft);border-radius:14px;background:var(--bg-card)}.cq-hub-step strong{display:block;font-size:.93rem;margin-bottom:2px}.cq-hub-step p{font-size:.83rem;color:var(--text-faint);line-height:1.5}.cq-hub-ico{font-size:1.25rem;line-height:1.2}.cq-company-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:16px}.cq-company{display:flex;flex-direction:column;gap:8px;height:100%;padding:18px;border:1px solid var(--border-soft);border-radius:16px;background:var(--bg-card);transition:border-color .15s ease,transform .15s ease}.cq-company:hover{border-color:var(--primary-soft);transform:translateY(-2px)}.cq-company-top{display:flex;align-items:center;justify-content:space-between;gap:10px}.cq-company-mark{display:grid;place-items:center;width:40px;height:40px;border-radius:12px;font-family:var(--font-mono);font-weight:700;font-size:.95rem;color:var(--primary-soft);border:1px solid var(--border);background:linear-gradient(160deg,#6c8cff2e,#6c8cff0a)}.cq-tier{font-size:.68rem;text-transform:uppercase;letter-spacing:.1em;padding:4px 9px;border-radius:999px;border:1px solid var(--border);color:var(--text-faint);white-space:nowrap}.cq-tier--product{color:var(--accent);border-color:#22d3ee59;background:#22d3ee14}.cq-tier--service{color:var(--violet);border-color:#a78bfa59;background:#a78bfa14}.cq-company-name{font-size:1.08rem;font-weight:700}.cq-company-blurb{font-size:.85rem;color:var(--text-dim);line-height:1.55}.cq-company-counts{display:flex;flex-wrap:wrap;gap:6px 16px;font-size:.8rem;color:var(--text-faint)}.cq-company-counts strong{color:var(--text);font-family:var(--font-mono);margin-right:3px}.cq-company-topics{display:flex;flex-wrap:wrap;gap:6px}.cq-topic-pill{font-size:.7rem;padding:3px 9px;border-radius:999px;border:1px solid var(--border-soft);background:#ffffff08;color:var(--text-faint);white-space:nowrap}.cq-topic-pill--more{color:var(--text-dim)}.cq-company-src{font-size:.72rem;color:var(--text-faint);font-family:var(--font-mono);word-break:break-word}.cq-company-go{margin-top:auto;padding-top:8px;font-size:.84rem;font-weight:600;color:var(--primary-soft)}.cq-back{font-size:.85rem;color:var(--text-dim);margin-bottom:6px}.cq-back a:hover{color:var(--primary-soft)}.cq-bank-head{display:flex;align-items:flex-start;justify-content:space-between;gap:16px}.cq-filters{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin:6px 0 4px}.cq-search{flex:1 1 260px;min-width:200px;padding:11px 15px;border-radius:12px;border:1px solid var(--border);background:var(--bg-soft);color:var(--text);font-size:.9rem;font-family:inherit}.cq-search:focus{outline:none;border-color:var(--primary-soft);box-shadow:0 0 0 3px #6c8cff24}.cq-search-btn{padding:10px 18px}.cq-clear{font-size:.82rem;color:var(--text-faint);padding:8px 6px}.cq-clear:hover{color:var(--text)}.cq-toggle{display:inline-flex;align-items:center;gap:7px;font-size:.85rem;color:var(--text-dim);cursor:pointer;-webkit-user-select:none;user-select:none}.cq-toggle input{accent-color:var(--primary);width:15px;height:15px}.cq-topic-tabs{margin-top:12px}.cq-count{font-size:.82rem;color:var(--text-faint);font-family:var(--font-mono);margin:4px 0 12px}.cq-loading,.cq-empty{display:flex;flex-direction:column;align-items:center;gap:12px;padding:56px 20px;text-align:center;border:1px dashed var(--border);border-radius:16px;color:var(--text-dim)}.cq-empty p{font-size:.88rem}.cq-q-list{display:flex;flex-direction:column;gap:12px}.cq-q{border:1px solid var(--border-soft);border-radius:14px;background:var(--bg-card);overflow:hidden;scroll-margin-top:84px}.cq-q.is-open{border-color:#6c8cff6b}.cq-q-head{display:flex;align-items:center;gap:14px;width:100%;padding:14px 16px;text-align:left}.cq-q-head:hover{background:#6c8cff0d}.cq-q-num{display:grid;place-items:center;flex:0 0 auto;width:32px;height:32px;border-radius:9px;font-family:var(--font-mono);font-size:.8rem;font-weight:700;color:var(--primary-soft);border:1px solid var(--border);background:#6c8cff1a}.cq-q-titles{display:flex;flex-direction:column;gap:5px;min-width:0}.cq-q-title{font-size:.98rem;font-weight:600;color:var(--text);line-height:1.35}.cq-q-meta{display:flex;flex-wrap:wrap;align-items:center;gap:6px 10px;font-size:.75rem;color:var(--text-faint)}.cq-q-lc,.cq-q-o{font-family:var(--font-mono);font-size:.72rem;color:var(--text-faint)}.cq-q-has{font-size:.68rem;text-transform:uppercase;letter-spacing:.08em;color:var(--green);border:1px solid rgba(52,211,153,.35);background:#34d39914;padding:2px 8px;border-radius:999px}.cq-q-no-code{font-size:.68rem;text-transform:uppercase;letter-spacing:.08em;color:var(--text-faint);border:1px solid var(--border);padding:2px 8px;border-radius:999px}.cq-q-chev{margin-left:auto;color:var(--text-faint);font-size:.9rem}.cq-q-body{padding:4px 18px 20px;border-top:1px solid var(--border-soft);display:flex;flex-direction:column;gap:18px}.cq-sec h4{font-size:.78rem;text-transform:uppercase;letter-spacing:.12em;color:var(--accent);margin:16px 0 8px}.cq-pre{font-size:.92rem;color:var(--text-dim);line-height:1.72;white-space:pre-line}.cq-steps{display:flex;flex-direction:column;gap:9px;margin:0;padding:0;list-style:none}.cq-steps li{display:flex;gap:11px;align-items:flex-start}.cq-step-n{display:grid;place-items:center;flex:0 0 auto;width:24px;height:24px;margin-top:2px;border-radius:50%;font-family:var(--font-mono);font-size:.72rem;font-weight:700;color:var(--accent);border:1px solid rgba(34,211,238,.35);background:#22d3ee14}.cq-example{font-family:var(--font-mono);font-size:.84rem;color:#e8edf7;background:#0b1120;border:1px solid var(--border-soft);border-radius:10px;padding:12px 14px;white-space:pre-wrap;word-break:break-word}.cq-note{font-size:.86rem;color:var(--text-faint);line-height:1.6}.cq-note--inline{padding:4px 0}.cq-q-foot{display:flex;flex-wrap:wrap;align-items:center;gap:14px;padding-top:14px;border-top:1px solid var(--border-soft)}.cq-viz-link{display:inline-flex;align-items:center;gap:8px;padding:9px 15px;border-radius:999px;font-size:.85rem;font-weight:600;color:var(--text);border:1px solid rgba(34,211,238,.4);background:#22d3ee14;transition:background .15s ease,border-color .15s ease}.cq-viz-link:hover{background:#22d3ee29;border-color:var(--accent)}.cq-q-ext{font-size:.82rem;color:var(--text-faint)}.cq-q-ext:hover{color:var(--primary-soft)}.cq-explainer{border:1px solid var(--border);border-radius:14px;background:var(--bg-card);overflow:hidden}.cq-ex-head{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:10px;padding:10px 12px;border-bottom:1px solid var(--border-soft);background:#ffffff05}.cq-tabs{display:flex;gap:6px;flex-wrap:wrap}.cq-tab{padding:7px 14px;border-radius:999px;font-size:.83rem;font-weight:600;color:var(--text-dim);border:1px solid transparent;transition:all .15s ease}.cq-tab:hover{color:var(--text);border-color:var(--border)}.cq-tab.active{color:var(--text);border-color:var(--primary-soft);background:#6c8cff24}.cq-chips{display:flex;flex-wrap:wrap;gap:6px}.cq-chip{font-size:.72rem;font-family:var(--font-mono);padding:4px 9px;border-radius:999px;border:1px solid var(--border-soft);color:var(--text-dim);background:#ffffff08}.cq-chip em{font-style:normal;color:var(--text-faint);margin-right:4px}.cq-chip--time{color:var(--amber);border-color:#fbbf244d}.cq-chip--space{color:var(--violet);border-color:#a78bfa4d}.cq-chip--lang{text-transform:uppercase;letter-spacing:.08em;color:var(--text-faint)}.cq-body{min-height:240px}.cq-scroll{max-height:420px;overflow:auto}.cq-pseudo-list{margin:0;padding:12px 0;list-style:none;font-family:var(--font-mono);font-size:.84rem;line-height:1.9}.cq-pseudo-line{display:flex;align-items:baseline;gap:10px;padding-right:14px;border-left:2px solid transparent}.cq-pseudo-line.is-cursor{background:#22d3ee1a;border-left-color:var(--accent)}.cq-pseudo-n{flex:0 0 22px;text-align:right;color:var(--text-faint);font-size:.7rem;opacity:.75}.cq-pseudo-line code{color:#111;white-space:pre-wrap;word-break:break-word}html[data-theme=night] .cq-pseudo-line code{color:#cfd8f5}.cq-code-lines{padding:12px 0;font-family:var(--font-mono);font-size:.82rem;line-height:1.75}.cq-code-line{display:flex;gap:12px;padding:0 14px;border-left:2px solid transparent;white-space:pre-wrap;word-break:break-word}.cq-code-line.is-cursor{background:#6c8cff24;border-left-color:var(--primary-soft)}.cq-code-no{flex:0 0 26px;text-align:right;color:var(--text-faint);opacity:.6;-webkit-user-select:none;user-select:none}.cq-code-txt{color:#1e293b;overflow-wrap:anywhere}.cq-code-txt .tok-kw{color:#7c3aed;font-weight:600}.cq-code-txt .tok-str{color:#b45309}.cq-code-txt .tok-num{color:#0e7490}.cq-code-txt .tok-fn{color:#1d4ed8}.cq-code-txt .tok-com{color:#64748b;font-style:italic}.cq-code-txt .tok-type{color:#b45309}.cq-code-txt .tok-op{color:#475569}html[data-theme=night] .cq-code-txt{color:#cfd8f5}html[data-theme=night] .cq-code-txt .tok-kw{color:#c792ea}html[data-theme=night] .cq-code-txt .tok-str{color:#c3e88d}html[data-theme=night] .cq-code-txt .tok-num{color:#f78c6c}html[data-theme=night] .cq-code-txt .tok-fn{color:#82aaff}html[data-theme=night] .cq-code-txt .tok-com{color:#5c6a8a}html[data-theme=night] .cq-code-txt .tok-type{color:#ffcb6b}html[data-theme=night] .cq-code-txt .tok-op{color:#89ddff}.cq-code-wrap{display:flex;flex-direction:column}.cq-langbar{display:flex;flex-wrap:wrap;align-items:center;gap:6px;padding:9px 12px;border-bottom:1px solid var(--border-soft);background:#ffffff04}.cq-langbar-label{font-size:.68rem;text-transform:uppercase;letter-spacing:.09em;color:var(--text-faint);margin-right:2px}.cq-langbtn{display:inline-flex;align-items:center;gap:6px;padding:5px 11px;border-radius:999px;font-size:.78rem;font-weight:600;color:var(--text-dim);border:1px solid var(--border-soft);background:#ffffff08;cursor:pointer;transition:all .15s ease}.cq-langbtn:hover{color:var(--text);border-color:var(--border)}.cq-langbtn.active{color:var(--text);border-color:var(--primary-soft);background:#6c8cff29}.cq-langbtn em{font-style:normal;font-size:.6rem;text-transform:uppercase;letter-spacing:.08em;color:var(--accent)}.cq-corelogic .cq-langbar{row-gap:7px}.cq-viewswitch{display:inline-flex;gap:4px;margin-left:auto;padding:3px;border-radius:999px;border:1px solid var(--border-soft);background:#ffffff05}.cq-viewswitch .cq-langbtn{border-color:transparent;background:transparent}.cq-viewswitch .cq-langbtn.active{border-color:var(--primary-soft);background:#6c8cff33}.cq-copybtn{margin-left:4px}.cq-code-line.is-core{background:#34d3991a;border-left-color:var(--green)}.cq-code-line.is-core .cq-code-no{color:var(--green);opacity:.9}.cq-code-line.is-core .cq-code-txt{color:#065f46}html[data-theme=night] .cq-code-line.is-core .cq-code-txt{color:#e8fff6}.cq-conv-note{margin:0;padding:9px 14px;border-top:1px solid var(--border-soft);background:#ffffff05;font-size:.75rem;line-height:1.55;color:var(--text-faint)}.cq-conv-note--partial{color:var(--amber);border-top-color:#fbbf2440}.cq-conv-empty{display:flex;flex-direction:column;align-items:flex-start;gap:8px;padding:22px 16px;font-size:.85rem;color:var(--text-dim)}.cq-conv-empty strong{color:var(--text)}.cq-conv-empty p{margin:0;font-size:.8rem;color:var(--text-faint)}.cq-player{display:flex;flex-wrap:wrap;align-items:center;gap:12px;padding:11px 14px;border-top:1px solid var(--border-soft);background:#ffffff05}.cq-player-ctls{display:flex;align-items:center;gap:6px}.cq-ctl{display:grid;place-items:center;min-width:34px;height:32px;padding:0 10px;border-radius:9px;font-size:.8rem;color:var(--text-dim);border:1px solid var(--border-soft);background:var(--bg-soft);transition:all .15s ease}.cq-ctl:hover:not(:disabled){color:var(--text);border-color:var(--primary-soft)}.cq-ctl:disabled{opacity:.4;cursor:not-allowed}.cq-ctl-primary{color:var(--text);font-weight:600;border-color:var(--primary-soft);background:linear-gradient(100deg,#6c8cff47,#22d3ee33)}.cq-progress{display:flex;align-items:center;gap:10px;flex:1 1 180px;min-width:150px}.cq-progress input[type=range]{flex:1;accent-color:var(--accent);height:4px;cursor:pointer}.cq-progress-n{font-family:var(--font-mono);font-size:.74rem;color:var(--text-faint);white-space:nowrap}.cq-narration{display:flex;align-items:baseline;gap:9px;flex:1 1 100%;font-size:.85rem;color:var(--text-dim);line-height:1.5}.cq-narration-kind{flex:0 0 auto;font-size:.68rem;text-transform:uppercase;letter-spacing:.1em;padding:3px 8px;border-radius:999px;border:1px solid var(--border);color:var(--text-faint)}.cq-kind-decision,.cq-kind-else{color:var(--amber);border-color:#fbbf2459}.cq-kind-loop{color:var(--violet);border-color:#a78bfa59}.cq-kind-return,.cq-kind-jump{color:var(--green);border-color:#34d39959}.cq-kind-start,.cq-kind-input{color:var(--accent);border-color:#22d3ee59}.cq-narration-text{font-family:var(--font-mono);font-size:.8rem;color:var(--text);word-break:break-word}.cq-foot{padding:10px 14px;border-top:1px solid var(--border-soft);font-size:.74rem;color:var(--text-faint);line-height:1.55}.cq-flow{position:relative;max-height:clamp(420px,62vh,640px);overflow-x:hidden;overflow-y:auto;background:radial-gradient(circle at 1px 1px,rgba(255,255,255,.05) 1px,transparent 0) 0 0 / 22px 22px,#0b1120}.cq-flow-fs{position:fixed;inset:0;z-index:1000;display:flex;flex-direction:column;background:#0b1120}.cq-flow-fs-bar{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:10px 16px;border-bottom:1px solid var(--border-soft);background:#ffffff05}.cq-flow-fs-title{font-size:.85rem;color:var(--text)}.cq-flow-fs-hint{flex:1;text-align:center;font-size:.73rem;color:var(--text-faint)}.cq-flow-fs-body{flex:1;overflow-y:auto;overflow-x:auto;padding:12px 16px 28px;background:radial-gradient(circle at 1px 1px,rgba(255,255,255,.05) 1px,transparent 0) 0 0 / 22px 22px,#0b1120}.cq-flow-svg{display:block;margin:0 auto}.cq-flow-svg--fs{margin:0 auto}.cq-flow-tools{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:7px 12px;border-bottom:1px solid var(--border-soft);background:#ffffff05}.cq-flow-hint{font-size:.73rem;color:var(--text-faint)}.cq-zoom{padding:4px 10px;border-radius:999px;font-size:.72rem;font-family:var(--font-mono);color:var(--text-dim);border:1px solid var(--border);background:var(--bg-soft);white-space:nowrap}.cq-zoom:hover{color:var(--text);border-color:var(--primary-soft)}.cq-edge polyline{fill:none;stroke:#8fa0c2;stroke-width:1.8}.cq-edge.is-back polyline{stroke:#a78bfabf;stroke-dasharray:5 4}.cq-edge-label{fill:#9aa7c7;font-size:10px;font-family:var(--font-mono)}.cq-arrow-head{fill:#8fa0c2}.cq-node{cursor:pointer}.cq-node .cq-shape{fill:#253154;stroke:#6d7ea6;stroke-width:1.5;transition:fill .15s ease,stroke .15s ease}.cq-node:hover .cq-shape{stroke:var(--primary-soft)}.cq-node-text{fill:#e8edf7;font-size:12.5px;font-family:var(--font-mono)}.cq-node--oval .cq-shape{fill:#6c8cff4d;stroke:var(--primary)}.cq-node--input .cq-shape{fill:#22d3ee3d;stroke:var(--accent);stroke-dasharray:6 4}.cq-node--decision .cq-shape{fill:#fbbf243d;stroke:#fbbf24f2}.cq-node--loop .cq-shape{fill:#a78bfa42;stroke:#a78bfaf2}.cq-node--exit .cq-shape{fill:#34d39942;stroke:#34d399f2}.cq-node--definition .cq-shape{fill:#94a3b829;stroke:#93a1bd;stroke-dasharray:5 4}.cq-node--comment .cq-shape{fill:#93a1bd;stroke:none}.cq-node--comment .cq-node-text{fill:#9aa7c7;font-style:italic;font-size:11.5px}.cq-node.is-on-line .cq-shape{stroke:var(--primary-soft)}.cq-node.is-active .cq-shape{stroke:var(--accent);stroke-width:2.4;fill:#22d3ee33}.cq-node.is-active .cq-node-text{fill:#fff;font-weight:600}.cq-node.is-active{filter:drop-shadow(0 0 8px rgba(34,211,238,.55))}.cq-legend{position:sticky;bottom:0;z-index:2;display:flex;flex-wrap:wrap;gap:8px 16px;padding:8px 14px;margin:0;list-style:none;font-size:.72rem;color:var(--text-faint);background:var(--bg-soft);border-top:1px solid var(--border-soft);-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px)}.cq-legend li{display:flex;align-items:center;gap:6px}.cq-legend-shape{width:16px;height:11px;border:1.4px solid var(--text-faint);display:inline-block}.cq-legend-oval{border-radius:50%;border-color:var(--primary)}.cq-legend-diamond{transform:rotate(45deg);width:11px;height:11px;border-color:var(--amber)}.cq-legend-loop{border-color:var(--violet);clip-path:polygon(20% 0,80% 0,100% 50%,80% 100%,20% 100%,0 50%)}.cq-legend-out{border-radius:6px;border-color:var(--green)}.cq-legend-def{border-style:dashed}.cq-home-band{display:flex;flex-wrap:wrap;align-items:center;gap:18px;justify-content:space-between;padding:22px 24px;border:1px solid var(--border);border-radius:18px;background:radial-gradient(520px 200px at 8% 0%,rgba(22,163,74,.1),transparent 70%),var(--bg-card)}.cq-home-band h2{font-size:clamp(1.25rem,2.4vw,1.7rem);letter-spacing:-.01em;margin-bottom:6px}.cq-home-band p{font-size:.92rem;color:var(--text-dim);max-width:560px}.cq-home-band-chips{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px}.cq-home-chip{font-size:.8rem;padding:6px 12px;border-radius:999px;border:1px solid var(--border-soft);background:#ffffff08;color:var(--text-dim);transition:all .15s ease}.cq-home-chip:hover{color:var(--text);border-color:var(--primary-soft);background:#16a34a14}.cq-split{display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr);gap:18px;align-items:start;margin-top:18px}.cq-split-left{display:flex;flex-direction:column;gap:18px;min-width:0}.cq-split-right{position:sticky;top:84px;border:1px solid var(--border);border-radius:14px;background:var(--bg-card);overflow:hidden}.cq-split-right-head{display:flex;flex-wrap:wrap;align-items:baseline;justify-content:space-between;gap:4px 12px;padding:12px 14px 10px;border-bottom:1px solid var(--border-soft)}.cq-split-right-head strong{font-size:.82rem;text-transform:uppercase;letter-spacing:.1em;color:var(--accent)}.cq-split-right .cq-scroll{max-height:min(72vh,660px)}.cq-qpage-nav{display:flex;align-items:center;justify-content:space-between;gap:12px;padding-top:14px;border-top:1px solid var(--border-soft)}.cq-qpage-prev,.cq-qpage-next{font-size:.85rem;color:var(--text-dim);max-width:48%;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.cq-qpage-prev:hover,.cq-qpage-next:hover{color:var(--primary-soft)}a.cq-q-head{text-decoration:none;color:inherit}.cq-pilot-badge{flex:0 0 auto;font-size:.66rem;font-weight:700;text-transform:uppercase;letter-spacing:.08em;color:#052e22;background:linear-gradient(100deg,#34d399,#22d3ee);padding:3px 9px;border-radius:999px}@media(max-width:960px){.cq-split{grid-template-columns:minmax(0,1fr)}.cq-split-right{position:static}.cq-split-right .cq-scroll{max-height:420px}}@media(max-width:760px){.cq-bank-head{flex-direction:column}.cq-flow{max-height:380px}.cq-scroll{max-height:320px}.cq-q-body{padding:4px 12px 16px}.cq-narration{flex-direction:column;gap:5px}}@media(prefers-reduced-motion:reduce){.cq-company,.cq-viz-link,.cq-tab{transition:none}}.qa-filter-row{display:flex;align-items:center;gap:12px;margin-top:14px}.qa-filter{display:block;width:100%;max-width:460px;padding:10px 14px;background:var(--bg-card);border:1px solid var(--border);border-radius:10px;color:var(--text);font-size:.9rem;font-family:var(--font-sans);outline:none;transition:border-color .2s}.qa-filter:focus{border-color:var(--primary)}.qa-filter::placeholder{color:var(--text-faint)}.gh-mark{flex-shrink:0;vertical-align:-.15em}.gh-eyebrow-mark{margin-right:6px;vertical-align:-.1em}.learn-lang svg{flex-shrink:0}.gh-progress{display:flex;align-items:center;gap:14px;margin-top:14px;flex-wrap:wrap}.gh-progress-track{position:relative;flex:1 1 220px;min-width:160px;height:10px;border-radius:999px;background:var(--bg-elev);border:1px solid var(--border-soft);overflow:hidden}.gh-progress-fill{display:block;height:100%;border-radius:999px;background:linear-gradient(90deg,var(--primary),var(--accent));transition:width .4s ease}.gh-progress-label{font-size:.82rem;font-weight:600;color:var(--text-dim);white-space:nowrap}.py-tick.gh-tick{color:var(--text-faint);opacity:.6}.py-tick.gh-tick.is-done{color:var(--green);opacity:1}.gh-lesson-meta{margin:2px 0 14px;font-size:.82rem;color:var(--text-faint);letter-spacing:.02em}.gh-done-btn{margin-top:16px;padding:10px 18px;border-radius:999px;border:1px solid rgba(108,140,255,.4);background:var(--bg-elev);color:var(--text);font-size:.88rem;font-weight:700;cursor:pointer;transition:border-color .2s,background .2s,color .2s}.gh-done-btn:hover{border-color:var(--primary);background:var(--bg-card)}.gh-done-btn.is-done{background:#34d39924;border-color:#34d39980;color:var(--green)}.gh-objectives{margin:6px 0 0;padding-left:22px;display:grid;gap:8px;color:var(--text-dim)}.gh-objectives li{line-height:1.55}.gh-objectives li::marker{color:var(--primary)}.gh-lead{margin:0 0 14px;color:var(--text-dim);line-height:1.6;font-size:.94rem}.gh-terms{margin:0;display:grid;gap:10px;grid-template-columns:repeat(auto-fit,minmax(260px,1fr))}.gh-term{margin:0;padding:12px 14px;border-radius:var(--radius-sm);border:1px solid var(--border-soft);background:var(--bg-soft)}.gh-term dt{font-weight:800;color:var(--text);font-size:.92rem;margin-bottom:4px}.gh-term dd{margin:0;color:var(--text-dim);font-size:.88rem;line-height:1.55}.gh-cmds{display:grid;gap:16px}.gh-cmd{border-left:2px solid rgba(108,140,255,.35);padding-left:14px}.gh-cmd-out{margin-top:10px;border-radius:var(--radius-sm);border:1px solid var(--border-soft);background:var(--bg-soft);padding:10px 14px;overflow-x:auto}.gh-cmd-out-label{display:block;font-size:.68rem;text-transform:uppercase;letter-spacing:.09em;font-weight:800;color:var(--text-faint);margin-bottom:6px}.gh-cmd-out pre{margin:0;font-family:var(--font-mono);font-size:.82rem;color:var(--text-dim);white-space:pre-wrap;word-break:break-word}.gh-cmd-note{margin:8px 0 0;font-size:.88rem;color:var(--text-dim);line-height:1.55}.gh-warn{margin:10px 0 0;padding:10px 14px;border-radius:var(--radius-sm);border:1px solid rgba(248,113,113,.4);background:#f871711a;color:#ffd9d9;font-size:.88rem;line-height:1.55}.gh-figure{margin:0 0 26px;padding:18px;border-radius:var(--radius);border:1px solid var(--border-soft);background:linear-gradient(160deg,var(--bg-soft),var(--bg-card))}.gh-figure:last-child{margin-bottom:0}.gh-figure-cap{display:flex;align-items:baseline;gap:10px;margin-bottom:14px;color:var(--text);font-size:.98rem}.gh-figure-num{font-size:.68rem;text-transform:uppercase;letter-spacing:.09em;font-weight:800;color:var(--primary-soft);white-space:nowrap}.gh-figure-body{overflow-x:auto}.gh-figure-note{margin:12px 0 0;font-size:.86rem;color:var(--text-faint);line-height:1.6}.gh-figure-read{margin-top:14px;padding-top:12px;border-top:1px dashed var(--border-soft)}.gh-figure-read-label{display:block;font-size:.68rem;text-transform:uppercase;letter-spacing:.09em;font-weight:800;color:var(--text-faint);margin-bottom:8px}.gh-figure-steps{margin:0;padding-left:20px;display:grid;gap:6px;color:var(--text-dim);font-size:.9rem;line-height:1.55}.gh-figure-steps li::marker{color:var(--accent)}.gh-src-toggle{background:none;border:0;padding:0;color:var(--primary-soft);font-size:.84rem;font-weight:700;cursor:pointer}.gh-figure-src{margin-top:12px}.gh-src-code{margin:10px 0 0;padding:12px 14px;border-radius:var(--radius-sm);border:1px solid var(--border-soft);background:var(--bg);color:var(--text-dim);font-family:var(--font-mono);font-size:.8rem;white-space:pre-wrap;overflow-x:auto}.gh-flow{display:flex;flex-wrap:wrap;align-items:stretch;gap:8px}.gh-flow-item{display:flex;align-items:center;gap:8px}.gh-node{display:flex;flex-direction:column;gap:3px;min-width:118px;padding:12px 14px;border-radius:var(--radius-sm);border:1px solid var(--border);background:var(--bg-elev);color:var(--text);font-size:.88rem;font-weight:700;box-shadow:var(--edge-hi)}.gh-node-note{font-size:.74rem;font-weight:600;color:var(--text-faint)}.gh-node-cmd{font-family:var(--font-mono);font-size:.72rem;font-weight:600;color:var(--accent);background:#22d3ee1a;border-radius:6px;padding:2px 6px}.gh-node--start{border-color:#34d39980;background:#34d3991a}.gh-node--store{border-color:#a78bfa80;background:#a78bfa1a}.gh-node--end{border-color:#6c8cff99;background:#6c8cff24}.gh-node--decision{border-left:4px solid var(--amber)}.gh-arrow{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:2px;color:var(--primary);min-width:40px}.gh-arrow-label{font-size:.66rem;font-weight:700;color:var(--text-faint);text-align:center;max-width:110px;line-height:1.25}.gh-arrow-line{font-size:1.15rem;line-height:1}.gh-branch-grid{display:grid;gap:12px;grid-template-columns:repeat(auto-fit,minmax(220px,1fr))}.gh-branch{padding:14px;border-radius:var(--radius-sm);border:1px solid var(--border-soft);background:var(--bg-elev)}.gh-branch-pill{display:inline-block;padding:4px 10px;border-radius:999px;font-size:.78rem;font-weight:800;border:1px solid var(--border);color:var(--text)}.gh-branch-pill--start{border-color:#34d39980;color:var(--green)}.gh-branch-pill--end{border-color:#6c8cff99;color:var(--primary-soft)}.gh-branch-list{margin:10px 0 0;padding-left:18px;display:grid;gap:5px;color:var(--text-dim);font-size:.86rem}.gh-table-wrap{overflow-x:auto}.gh-table{width:100%;border-collapse:collapse;font-size:.86rem}.gh-table th,.gh-table td{text-align:left;padding:10px 12px;border-bottom:1px solid var(--border-soft);vertical-align:top;line-height:1.5}.gh-table thead th{font-size:.7rem;text-transform:uppercase;letter-spacing:.08em;color:var(--text-faint);border-bottom-color:var(--border)}.gh-table tbody th{font-weight:700;color:var(--text);white-space:nowrap}.gh-table tbody td{color:var(--text-dim)}.gh-table tbody tr:last-child th,.gh-table tbody tr:last-child td{border-bottom:0}.gh-session{margin:0 0 12px;padding:12px 14px;border-radius:var(--radius-sm);border:1px solid var(--border-soft);background:var(--bg);font-family:var(--font-mono);font-size:.8rem;color:var(--text-dim);white-space:pre-wrap}.gh-mistakes,.gh-bests,.gh-summary{margin:0;padding:0;list-style:none;display:grid;gap:10px;color:var(--text-dim);line-height:1.55}.gh-mistakes li,.gh-bests li{display:grid;grid-template-columns:22px 1fr;gap:10px;align-items:start}.gh-mistake-ico{color:var(--amber)}.gh-best-ico{color:var(--green)}.gh-summary li{padding-left:18px;position:relative}.gh-summary li:before{content:"▸";position:absolute;left:0;color:var(--primary)}.gh-next-preview{margin:16px 0 0;padding:12px 14px;border-radius:var(--radius-sm);border:1px solid rgba(108,140,255,.35);background:#6c8cff1a;color:var(--text-dim);font-size:.9rem;line-height:1.6}.gh-docs{margin-top:16px;display:flex;flex-wrap:wrap;gap:10px;align-items:center}.gh-docs-label{font-size:.68rem;text-transform:uppercase;letter-spacing:.09em;font-weight:800;color:var(--text-faint);width:100%}.gh-doc-link{font-size:.84rem;font-weight:600;color:var(--primary-soft);text-decoration:none;border-bottom:1px solid rgba(143,168,255,.35)}.gh-doc-link:hover{color:var(--accent);border-bottom-color:var(--accent)}.gh-exercise{border-left:3px solid var(--accent)}.gh-exercise-title{margin:0 0 6px;font-size:1.02rem;font-weight:800;color:var(--text)}.gh-exercise-steps,.gh-project-steps{margin:12px 0 0;padding-left:20px;display:grid;gap:8px;color:var(--text-dim);line-height:1.55}.gh-exercise-steps li::marker,.gh-project-steps li::marker{color:var(--accent)}.gh-exercise-check,.gh-project-check{margin:14px 0 0;padding:10px 14px;border-radius:var(--radius-sm);border:1px solid rgba(52,211,153,.35);background:#34d39914;color:var(--text-dim);font-size:.88rem}.gh-projects{display:grid;gap:18px}.gh-project{padding:16px;border-radius:var(--radius);border:1px solid var(--border-soft);background:var(--bg-soft)}.gh-project-head{display:flex;flex-wrap:wrap;align-items:baseline;gap:10px;margin-bottom:8px}.gh-project-head strong{color:var(--text);font-size:1.02rem}.gh-project-num{font-size:.68rem;text-transform:uppercase;letter-spacing:.09em;font-weight:800;color:var(--primary-soft)}.gh-project-level{margin-left:auto;font-size:.7rem;text-transform:uppercase;letter-spacing:.07em;font-weight:800;color:var(--text-faint);border:1px solid var(--border-soft);border-radius:999px;padding:3px 10px}.gh-project-goal{margin:0;color:var(--text-dim);font-size:.92rem;line-height:1.6}.gh-quiz-head{display:flex;flex-wrap:wrap;align-items:baseline;justify-content:space-between;gap:10px}.gh-quiz-score{margin:0;font-size:.84rem;color:var(--text-faint)}.gh-quiz-list{margin:16px 0 0;padding:0;list-style:none;display:grid;gap:22px}.gh-q{padding:16px;border-radius:var(--radius);border:1px solid var(--border-soft);background:var(--bg-soft)}.gh-q-top{display:flex;align-items:center;gap:10px;margin-bottom:8px}.gh-q-kind{font-size:.66rem;text-transform:uppercase;letter-spacing:.09em;font-weight:800;color:var(--primary-soft);border:1px solid rgba(108,140,255,.4);border-radius:999px;padding:3px 9px}.gh-q-num{margin-left:auto;font-size:.72rem;font-weight:800;color:var(--text-faint)}.gh-q-prompt{margin:0 0 6px;color:var(--text);font-weight:600;line-height:1.55}.gh-q-code{margin:0 0 12px;padding:10px 14px;border-radius:var(--radius-sm);border:1px solid var(--border-soft);background:var(--bg);font-family:var(--font-mono);font-size:.8rem;color:var(--text-dim);white-space:pre-wrap;overflow-x:auto}.gh-q-options{display:grid;gap:8px;margin-top:10px}.gh-q-opt{display:grid;grid-template-columns:26px 1fr;gap:10px;align-items:start;text-align:left;padding:11px 13px;border-radius:var(--radius-sm);border:1px solid var(--border-soft);background:var(--bg-elev);color:var(--text-dim);font-size:.9rem;line-height:1.5;cursor:pointer;transition:border-color .18s,background .18s,color .18s}.gh-q-opt:hover{border-color:var(--primary);color:var(--text)}.gh-q-mark{display:inline-flex;align-items:center;justify-content:center;width:22px;height:22px;border-radius:50%;border:1px solid var(--border);font-size:.72rem;font-weight:800;color:var(--text-faint)}.gh-q-opt.is-right{border-color:#34d39999;background:#34d3991f;color:var(--text)}.gh-q-opt.is-right .gh-q-mark{border-color:var(--green);color:var(--green)}.gh-q-opt.is-wrong{border-color:#f8717199;background:#f871711f;color:var(--text)}.gh-q-opt.is-wrong .gh-q-mark{border-color:var(--red);color:var(--red)}.gh-q-explain{margin:12px 0 0;padding:11px 13px;border-radius:var(--radius-sm);font-size:.88rem;line-height:1.6;color:var(--text-dim);border:1px solid var(--border-soft);background:var(--bg-elev)}.gh-q-explain.is-right{border-color:#34d39966;background:#34d39917}.gh-q-explain.is-wrong{border-color:#f8717166;background:#f8717117}.gh-quiz-done{margin:18px 0 0;padding:12px 14px;border-radius:var(--radius-sm);border:1px solid rgba(108,140,255,.35);background:#6c8cff1a;color:var(--text-dim);font-size:.9rem}.gh-cert{display:grid;grid-template-columns:64px 1fr;gap:16px;padding:20px;border-radius:var(--radius);border:1px solid var(--border);background:linear-gradient(150deg,var(--bg-soft),var(--bg-card))}.gh-cert.is-earned{border-color:#34d3998c;background:linear-gradient(150deg,rgba(52,211,153,.14),var(--bg-card));box-shadow:0 18px 45px -18px #34d39973}.gh-cert-seal{font-size:2.4rem;line-height:1;text-align:center}.gh-cert-title{margin:0 0 8px;font-size:1.08rem;font-weight:800;color:var(--text)}.gh-cert-line{margin:0 0 6px;font-size:.9rem;color:var(--text-dim)}.gh-cert-earned{margin:12px 0 0;font-size:.92rem;line-height:1.6;color:var(--green)}.gh-cert-hint{margin:12px 0 0;font-size:.9rem;line-height:1.6;color:var(--text-faint)}.gh-cert-reset{grid-column:1 / -1;justify-self:start;margin-top:4px;padding:9px 16px;border-radius:999px;border:1px solid var(--border-soft);background:var(--bg-elev);color:var(--text-faint);font-size:.82rem;font-weight:700;cursor:pointer}.gh-cert-reset:hover{border-color:var(--red);color:var(--red)}@media(max-width:640px){.gh-flow,.gh-flow-item{flex-direction:column;align-items:stretch}.gh-node{min-width:0}.gh-arrow{flex-direction:row;min-width:0;gap:8px;padding:2px 0}.gh-arrow-line{transform:rotate(90deg)}.gh-arrow-label{max-width:none;text-align:left}.gh-cert{grid-template-columns:1fr}.gh-cert-seal{text-align:left}.gh-table{font-size:.82rem}.gh-table th,.gh-table td{padding:8px 9px}}html[data-theme=night]{color-scheme:dark;--bg: #0a0f1c;--bg-soft: #0d1424;--bg-card: #101828;--bg-elev: #16202f;--border: #26334d;--border-soft: #1e2a3f;--text: #e2e8f0;--text-dim: #a9b8d0;--text-faint: #7c8aa5;--primary: #4ade80;--primary-soft: #4ade80;--accent: #60a5fa;--green: #4ade80;--gold: #e8c468;--gold-soft: linear-gradient(100deg, #f7e8b0, #d4af37 55%, #9a7b1e);--shadow-lg: 0 24px 60px -12px rgba(0, 0, 0, .6);--site-bg: #0a0f1c;--site-card: #101828;--site-border: #26334d;--site-border-soft: #1e2a3f;--site-primary: #4ade80;--site-accent: #60a5fa;--site-text: #e2e8f0;--site-text-dim: #a9b8d0;--site-text-faint: #7c8aa5}html[data-theme=night] h1,html[data-theme=night] h2,html[data-theme=night] h3,html[data-theme=night] h4,html[data-theme=night] h5,html[data-theme=night] h6{color:#f1f5f9}html[data-theme=night] .btn-primary{background:var(--primary);border-color:var(--primary);color:#04120c}html[data-theme=night] .btn-primary:hover{background:#22c55e;border-color:#22c55e;box-shadow:0 12px 32px #4ade8059}html[data-theme=night] .btn-ghost:hover{color:var(--primary);background:#4ade8014}html[data-theme=night] .hero-badge{color:#4ade80;background:#4ade8014;border-color:#4ade804d}html[data-theme=night] .stat .num{color:#f1f5f9}html[data-theme=night] .section-eyebrow{color:var(--primary)}html[data-theme=night] .ds-cat-blurb{color:#d2d8e9}html[data-theme=night] .dsa-tab.active{background:var(--primary);border-color:var(--primary);color:#04120c}html[data-theme=night] .algo-cat.active{color:#061018}html[data-theme=night] .ctrl-btn.play:hover:not(:disabled),html[data-theme=night] .hm-ctl-primary:hover:not(:disabled){box-shadow:0 6px 26px #ffc93c99}html[data-theme=night] .algo-sidebar{background:linear-gradient(180deg,#0d1424f7,#0a0f1cf2);border-right-color:var(--border-soft)}html[data-theme=night] .nav-logo .logo-badge,html[data-theme=night] .footer-logo .logo-badge,html[data-theme=night] .nav-cta{color:#04120c}html[data-theme=night] .premium-badge{color:#ffe9a8;background:#d4af372e;border-color:#f6e27aa6;filter:drop-shadow(0 0 5px rgba(246,226,122,.35))}html[data-theme=night] .premium-badge svg{stroke:#f6e27a}html[data-theme=night] .nav-srch-list,html[data-theme=night] .nav-srch-empty{background:var(--bg-card);border-color:var(--border-soft)}html[data-theme=night] .nav-srch-item:hover,html[data-theme=night] .nav-srch-item.sel{background:var(--bg-elev)}html[data-theme=night] .nav-srch-title{color:var(--text)}html[data-theme=night] .nav-srch-empty{color:var(--text-faint)}html[data-theme=night] ::-webkit-scrollbar-track{background:var(--bg-soft)}html[data-theme=night] ::-webkit-scrollbar-thumb{background:#2a3557}html[data-theme=night] ::-webkit-scrollbar-thumb:hover{background:#36426b}.theme-toggle{display:grid;place-items:center;width:34px;height:34px;border-radius:50%;border:1px solid #333333;background:#1f2937;color:#fff;font-size:1rem;line-height:1;cursor:pointer;flex-shrink:0;transition:border-color .2s ease,color .2s ease,transform .2s ease}.theme-toggle:hover{border-color:#4ade80;color:#4ade80;transform:translateY(-1px)}.home-with-space .hero{text-align:left;padding-bottom:44px}.home-with-space .hero .container{display:grid;grid-template-columns:1.02fr .98fr;gap:48px;align-items:center}.home-with-space .hero-copy .hero-sub{margin-left:0;margin-right:0}.home-with-space .hero-copy{text-align:left;max-width:none;margin:0}.home-with-space .hero-copy .hero-actions{justify-content:flex-start}.home-with-space .hm-hero-reveal{min-width:0;margin-top:-28px}.home-with-space .hm-promo-note{display:flex;align-items:center;justify-content:center;gap:10px;text-align:center;font-size:.85rem;font-weight:600;color:#8a6d1b;background:linear-gradient(135deg,#d4af3724,#d4af370f);border:1px solid rgba(184,134,11,.45);border-radius:999px;padding:9px 18px;margin:0 0 16px}.home-with-space .hm-promo-note .dot{width:8px;height:8px;border-radius:50%;background:#b8912f;flex-shrink:0;animation:pulse 1.8s ease infinite}.home-with-space .hm-promo-note strong{font-weight:800;letter-spacing:.02em}html[data-theme=night] .home-with-space .hm-promo-note{color:#e6bd4d;background:linear-gradient(135deg,#d4af3729,#d4af370f);border-color:#d4af3773}html[data-theme=night] .home-with-space .hm-promo-note .dot{background:#e6bd4d}.home-with-space .hero-showcase{margin-top:0}.home-with-space .hero-stats{grid-column:1 / -1;justify-content:flex-start;gap:0;margin-top:40px;border-top:1px solid var(--border-soft);border-bottom:1px solid var(--border-soft);padding:20px 0}.home-with-space .hero-stats .stat{padding:0 36px;border-left:1px solid var(--border-soft)}.home-with-space .hero-stats .stat:first-child{padding-left:0;border-left:none}.home-with-space .stat .num{font-family:var(--font-mono);font-size:1.55rem}.home-with-space .hero-bottom-row{display:flex;align-items:center;gap:36px;margin-top:34px;flex-wrap:wrap}.home-with-space .hero-bottom-row .hero-actions{margin-top:0;flex-shrink:0}.home-with-space .hero-stats.hm-stats-mid{grid-column:auto;display:flex;justify-content:space-between;gap:8px;margin:0 0 16px;padding:0;border:none;flex-wrap:nowrap}.home-with-space .hero-stats.hm-stats-mid .stat{padding:0;border-left:none;text-align:center;flex:1 1 0;min-width:0}.home-with-space .hero-stats.hm-stats-mid .stat .num{font-size:1rem}.home-with-space .hero-stats.hm-stats-mid .stat .lbl{font-size:.66rem;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}@media(max-width:1000px){.home-with-space .hero-bottom-row{gap:22px}.home-with-space .hero-stats.hm-stats-side{border-left:none;padding-left:0;padding-top:18px;border-top:1px solid var(--border-soft);width:100%}}html[data-theme=night] .home-with-space .stat .num,html[data-theme=night] .stat .num{color:#f1f5f9}.home-with-space .section-head{text-align:left;margin:0 0 36px;max-width:720px}.home-with-space .section-eyebrow{display:inline-flex;align-items:center;gap:10px}.home-with-space .section-eyebrow:before{content:"";width:26px;height:3px;border-radius:2px;background:var(--primary)}.home-with-space .hm-topics{grid-template-columns:repeat(3,1fr);counter-reset:hm-topic}.home-with-space .hm-topic{position:relative;counter-increment:hm-topic;overflow:hidden}.home-with-space .hm-topic:after{content:counter(hm-topic,decimal-leading-zero);position:absolute;top:14px;right:16px;font-family:var(--font-mono);font-size:.78rem;font-weight:700;color:var(--text-faint)}.home-with-space .hm-topic:before{content:"";position:absolute;top:0;left:0;right:0;height:3px;background:var(--primary);opacity:0;transition:opacity .2s ease}.home-with-space .hm-topic:hover{border-color:var(--primary);box-shadow:var(--shadow-lg)}.home-with-space .hm-topic:hover:before{opacity:1}.home-with-space .hm-topic-icon{background:#16a34a14;border-color:#16a34a40}.home-with-space .hm-topic-icon svg{stroke:var(--primary-soft)}.home-with-space .hm-topic-go{color:var(--primary)}.home-with-space .hm-rows{display:grid;gap:10px;counter-reset:hm-row}.home-with-space .hm-row{counter-increment:hm-row;display:flex;align-items:baseline;gap:18px;padding:16px 20px;border-radius:14px;background:var(--bg-card);border:1px solid var(--border-soft);transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease}.home-with-space .hm-row:before{content:counter(hm-row,decimal-leading-zero);font-family:var(--font-mono);font-size:.82rem;font-weight:700;color:var(--text-faint);flex-shrink:0}.home-with-space .hm-row h3{font-size:1.02rem;font-weight:700;white-space:nowrap}.home-with-space .hm-row p{flex:1;min-width:0;font-size:.88rem;color:var(--text-dim)}.home-with-space .hm-row-go{flex-shrink:0;font-size:.85rem;font-weight:700;color:var(--primary)}.home-with-space .hm-row:hover{transform:translate(5px);border-color:var(--primary);box-shadow:var(--shadow-lg)}.home-with-space .hm-row:hover .hm-row-go span{display:inline-block;transform:translate(4px);transition:transform .2s ease}.home-with-space .cq-home-band{border-left:4px solid var(--primary);padding:30px 32px}.home-with-space .hm-step-num{background:var(--primary);color:#fff}html[data-theme=night] .home-with-space .hm-step-num{color:#04120c}.home-with-space .hm-step:hover{border-color:var(--primary)}html[data-theme=night] .home-with-space .hm-topic-icon{background:#4ade801a;border-color:#4ade804d}@media(max-width:1000px){.home-with-space .hero .container{grid-template-columns:1fr;gap:32px}.home-with-space .hm-topics{grid-template-columns:repeat(auto-fill,minmax(230px,1fr))}.home-with-space .hm-row{flex-wrap:wrap;gap:8px 14px}.home-with-space .hm-row h3{white-space:normal}.home-with-space .hero-stats{flex-wrap:wrap;gap:18px 0}.home-with-space .hero-stats .stat{padding:0 24px 0 0;border-left:none;min-width:40%}}.card,.viz-card,.code-panel,.lang-card,.vis-card,.hm-topic,.hm-step,.hm-row,.hm-benefit,.cq-home-band,.mock-viz,.final-cta,.topic-pager-btn,.lesson-nav,.cq-company,.cq-hub-step,.cq-explainer,.cq-q,.portal-card,.cap-strip,.cap-item,.exec-sim,.exec-panel,.quiz-item,.algo-cat,.page-end-cta,.rail-card{border-width:2px;border-color:#b8860b80}.cq-home-band{border-left:4px solid rgb(191,153,40)}html[data-theme=night] .card,html[data-theme=night] .viz-card,html[data-theme=night] .code-panel,html[data-theme=night] .lang-card,html[data-theme=night] .vis-card,html[data-theme=night] .hm-topic,html[data-theme=night] .hm-step,html[data-theme=night] .hm-row,html[data-theme=night] .hm-benefit,html[data-theme=night] .cq-home-band,html[data-theme=night] .mock-viz,html[data-theme=night] .final-cta,html[data-theme=night] .topic-pager-btn,html[data-theme=night] .lesson-nav,html[data-theme=night] .cq-company,html[data-theme=night] .cq-hub-step,html[data-theme=night] .cq-explainer,html[data-theme=night] .cq-q,html[data-theme=night] .portal-card,html[data-theme=night] .cap-strip,html[data-theme=night] .cap-item,html[data-theme=night] .exec-sim,html[data-theme=night] .exec-panel,html[data-theme=night] .quiz-item,html[data-theme=night] .algo-cat,html[data-theme=night] .page-end-cta,html[data-theme=night] .rail-card{border-color:#9a99c480}html[data-theme=night] .cq-home-band{border-left:4px solid rgb(154,153,196)}.btn,.btn-primary,.btn-ghost,.nav-cta,.ctrl-btn,.dsa-tab,.hm-ctl,.hm-select,.select,.topic-pager-btn,.pattern-tab,.strip-arrow,.theme-toggle,.browse-btn,.cq-home-chip,.cq-langbtn,.cq-tab,.cq-viz-link,.code-lang,.chip{border-width:2px;border-color:#b8860b99}.ctrl-btn.play,.hm-ctl-primary{border-width:2px;border-color:#8a6a1ce6}html[data-theme=night] .btn,html[data-theme=night] .btn-primary,html[data-theme=night] .btn-ghost,html[data-theme=night] .nav-cta,html[data-theme=night] .ctrl-btn,html[data-theme=night] .dsa-tab,html[data-theme=night] .hm-ctl,html[data-theme=night] .hm-select,html[data-theme=night] .select,html[data-theme=night] .topic-pager-btn,html[data-theme=night] .pattern-tab,html[data-theme=night] .strip-arrow,html[data-theme=night] .theme-toggle,html[data-theme=night] .browse-btn,html[data-theme=night] .cq-home-chip,html[data-theme=night] .cq-langbtn,html[data-theme=night] .cq-tab,html[data-theme=night] .cq-viz-link,html[data-theme=night] .code-lang,html[data-theme=night] .chip{border-color:#9a99c499}.algo-cplx-box,.net-fact-row,.algo-concept,.algo-concept-example{border-width:2px;border-color:#b8860b80}.algo-concept-badge,.algo-bigo,.cq-topic-pill,.cq-q-no-code,.cq-chip,.exec-reg,.nav-srch-input,.cq-search,.mini-input,.ds-custom-input,.side-acc-sub,.py-topic-item,.algo-edge-tab{border-color:#b8860b8c}html[data-theme=night] .algo-cplx-box,html[data-theme=night] .net-fact-row,html[data-theme=night] .algo-concept,html[data-theme=night] .algo-concept-example{border-color:#9a99c480}html[data-theme=night] .algo-concept-badge,html[data-theme=night] .algo-bigo,html[data-theme=night] .cq-topic-pill,html[data-theme=night] .cq-q-no-code,html[data-theme=night] .cq-chip,html[data-theme=night] .exec-reg,html[data-theme=night] .nav-srch-input,html[data-theme=night] .cq-search,html[data-theme=night] .mini-input,html[data-theme=night] .ds-custom-input,html[data-theme=night] .side-acc-sub,html[data-theme=night] .py-topic-item,html[data-theme=night] .algo-edge-tab{border-color:#9a99c48c}.viz-skeleton,.viz-concept,.algo-back,.algo-intro-term,.pattern-card,.learn-lang.live,.py-output,.py-case,.py-usecase,.exec-frame,.cq-ctl,.error-fallback,.gh-term,.gh-src-code,.gh-session,.gh-project,.gh-q,.gh-cert,.gh-figure,.gh-cmd-out{border-width:2px;border-color:#b8860b80}.py-cx-chip,.pattern-pill,.pattern-size,.pattern-mode-hint,.qa-filter,.gh-branch-pill,.gh-q-opt,.gh-q-code,.gh-node,.gh-branch{border-color:#b8860b8c}html[data-theme=night] .viz-skeleton,html[data-theme=night] .viz-concept,html[data-theme=night] .algo-back,html[data-theme=night] .algo-intro-term,html[data-theme=night] .pattern-card,html[data-theme=night] .learn-lang.live,html[data-theme=night] .py-output,html[data-theme=night] .py-case,html[data-theme=night] .py-usecase,html[data-theme=night] .exec-frame,html[data-theme=night] .cq-ctl,html[data-theme=night] .error-fallback,html[data-theme=night] .gh-term,html[data-theme=night] .gh-src-code,html[data-theme=night] .gh-session,html[data-theme=night] .gh-project,html[data-theme=night] .gh-q,html[data-theme=night] .gh-cert,html[data-theme=night] .gh-figure,html[data-theme=night] .gh-cmd-out{border-color:#9a99c480}html[data-theme=night] .py-cx-chip,html[data-theme=night] .pattern-pill,html[data-theme=night] .pattern-size,html[data-theme=night] .pattern-mode-hint,html[data-theme=night] .qa-filter,html[data-theme=night] .gh-branch-pill,html[data-theme=night] .gh-q-opt,html[data-theme=night] .gh-q-code,html[data-theme=night] .gh-node,html[data-theme=night] .gh-branch{border-color:#9a99c48c}.lesson-nav,.dsa-code,.ad-rail,.cq-split-right,.home-rail-ads,.algo-ads-col{top:calc(var(--nav-h, 76px) + 8px)}html,body{overflow-x:clip;overscroll-behavior-y:none}img,svg,canvas,video,iframe{max-width:100%}pre,code{overflow-wrap:anywhere}.page{min-height:100dvh}@media(hover:none)and (pointer:coarse){.lift:hover,.card:hover,.vis-card:hover,.portal-card:hover,.rail-card:hover,.tip-box:hover,.final-cta:hover,.viz-card:hover,.hm-topic:hover,.hm-benefit:hover,.hm-row:hover{transform:none}.glow-border:hover:after,.portal-card:hover:before{opacity:0}.hero-showcase .mock-viz,.hero-showcase .mock-code,.hm-hero-showcase .mock-viz{animation:none}.strip-arrow{display:none}}@media(max-width:860px){.container,.container-wide{width:min(1240px,calc(100vw - 24px))}.page{padding-bottom:48px}.section{padding:56px 0}.section-head{margin-bottom:36px}.nav-inner{height:56px;gap:8px}.nav-srch{flex:1 1 auto;min-width:0;max-width:none;margin-left:0}.nav-srch-input{min-height:40px;font-size:16px}.nav-srch-list,.nav-srch-empty{min-width:0;left:0;right:0;width:auto;max-width:none;max-height:min(60dvh,400px)}.nav-toggle{min-width:44px;min-height:44px;align-items:center;justify-content:center}.nav-mobile.open .nav-link{min-height:44px;display:flex;align-items:center;padding:10px 14px}.theme-toggle{width:40px;height:40px}.hero{padding-top:calc(var(--nav-h, 76px) + 40px)}.hero h1{font-size:clamp(1.75rem,8vw,2.4rem);overflow-wrap:break-word;text-wrap:balance}.hero p{font-size:1rem}.hero-actions{flex-direction:column;align-items:stretch}.hero-actions .btn{width:100%;min-height:48px}.hero-stats{gap:20px 0}.hero-stats .stat{min-width:44%;flex:1 1 44%}.hero-showcase{margin-top:40px}.mock-viz{padding:14px 14px 16px}.mock-stage{height:160px;padding:14px 12px 0}.mock-badge{display:none}.grid-3,.grid-2{gap:14px}.card,.viz-card,.vis-card,.final-cta{padding:18px 16px}.final-cta{padding:40px 20px}.viz-stage{min-height:200px;padding:16px 12px}.viz-controls{gap:8px}.ctrl-btn,.select{min-height:44px}.ctrl-btn{flex:1 1 auto;padding:10px 14px}.viz-info{font-size:.85rem;overflow-wrap:anywhere}.legend{gap:10px 14px}.algo-stage-wrap{min-height:200px;padding:16px 12px;gap:8px}.algo-stage-row{gap:12px}.algo-algolist{flex-wrap:nowrap;overflow-x:auto;-webkit-overflow-scrolling:touch}.algo-chip{min-height:40px;display:inline-flex;align-items:center}.pattern-stage{padding:14px 12px}.pattern-controls{gap:10px}.pattern-catalog{grid-template-columns:1fr}.exec-sim{padding:12px;container-type:normal}.exec-grid{grid-template-columns:1fr}.exec-stack,.exec-mem-scroll{height:auto;max-height:260px;-webkit-overflow-scrolling:touch}.exec-lines{font-size:.78rem;-webkit-overflow-scrolling:touch}.exec-controls{gap:8px}.exec-controls .ctrl-btn{flex:1 1 calc(50% - 8px)}.code-block{font-size:.78rem;max-height:380px;-webkit-overflow-scrolling:touch}.code-block pre{padding:14px}.sa-table,.exec-mem,.algo-table{font-size:.78rem}.sa-table th,.sa-table td{padding:6px 8px}.dsa-layout{gap:16px}.learn-layout{gap:20px}.cq-company-grid,.cq-hub-how{grid-template-columns:1fr}.algo-sidebar{width:min(300px,calc(100vw - 48px));max-height:100dvh;top:0}.home-with-space .hero{text-align:center;padding-bottom:32px}.home-with-space .hero-copy{text-align:center}.home-with-space .hero-copy .hero-actions{justify-content:center}.home-with-space .hero-stats.hm-stats-mid{flex-wrap:wrap}.home-with-space .hero-stats.hm-stats-mid .stat{flex:1 1 30%}.home-with-space .hm-row p{flex:1 1 100%}.hm-promo-action{width:100%}.hm-promo-btn{width:100%;white-space:normal}.footer{padding:32px 0 calc(28px + env(safe-area-inset-bottom,0px))}.aff-grid{grid-template-columns:1fr}}@media(max-width:640px){input,select,textarea{font-size:16px}.mini-input,.ds-custom-input,.select,.hm-select,.qa-filter,.code-lang{font-size:16px;min-height:44px}.qa-filter-row{flex-direction:column;align-items:stretch}.dsa-tabs{flex-wrap:nowrap;overflow-x:auto;padding-bottom:4px;margin-inline:-12px;padding-inline:12px;-webkit-overflow-scrolling:touch;scrollbar-width:none}.dsa-tabs::-webkit-scrollbar{display:none}.dsa-tab{flex-shrink:0;min-height:40px}.algo-bits-name{width:72px}.algo-interval-row{grid-template-columns:20px 1fr 84px}.algo-vars{gap:6px}.topic-pager-btn{min-height:56px}.ad-sticky-bar{padding:8px 48px calc(8px + env(safe-area-inset-bottom,0px)) 8px}body:has(.ad-sticky-bar) .footer{padding-bottom:110px}.ad-video-dock{left:12px;right:12px;bottom:calc(76px + env(safe-area-inset-bottom,0px));width:auto}.ad-interstitial-card{width:calc(100vw - 24px);max-height:calc(100dvh - 32px);overflow-y:auto;padding:22px 16px 16px;-webkit-overflow-scrolling:touch}.ad-overlay-close{width:40px;height:40px;font-size:1rem}.cq-bank-head{flex-direction:column}.cq-qpage-nav{flex-direction:column;align-items:stretch}.cq-qpage-prev,.cq-qpage-next{max-width:none;white-space:normal;min-height:44px}}@media(max-width:480px){.container,.container-wide{width:calc(100vw - 20px)}.hero h1{font-size:clamp(1.6rem,9vw,2rem)}.hero-badge{font-size:.76rem;padding:6px 12px}.stat .num{font-size:1.5rem}.mock-stage{height:140px}.mock-msg{font-size:.72rem}.hm-controls{width:100%}.hm-ctl,.hm-select{min-height:44px}.hm-ctl{flex:1 1 calc(50% - 6px)}.viz-bar,.algo-bar{min-width:0}.browse-btn{width:100%;justify-content:center;min-height:48px;white-space:normal;text-align:center}.algo-head-row{flex-direction:column;align-items:stretch}.dsa-tab{padding:8px 14px;font-size:.82rem}.footer-grid{gap:20px}}@media(max-width:360px){.hero h1{font-size:1.55rem}.card,.viz-card,.vis-card{padding:16px 12px}.viz-stage,.algo-stage-wrap{padding:12px 8px}.code-block pre{padding:12px 10px}.hm-topics{grid-template-columns:1fr}}@supports (padding: env(safe-area-inset-bottom)){.nav-mobile.open{padding-bottom:calc(16px + env(safe-area-inset-bottom,0px))}}@media(prefers-reduced-motion:reduce){.ad-video-dock{animation:none}}html[data-ads-debug="1"] .ad-slot{outline:2px dashed #ef4444;outline-offset:2px}html[data-ads-debug="1"] .ad-slot-wrap{position:relative}html[data-ads-debug="1"] .ad-slot-wrap:after{content:"AD · " attr(data-ad-format) " · " attr(data-ad-unit);position:absolute;top:-11px;left:8px;z-index:5;font-family:var(--font-mono);font-size:.62rem;font-weight:700;letter-spacing:.04em;white-space:nowrap;color:#fff;background:#ef4444;border-radius:6px;padding:2px 8px;pointer-events:none}html[data-ads-debug="1"] .ad-rail,html[data-ads-debug="1"] .ad-topband,html[data-ads-debug="1"] .ad-midarticle{outline:2px dashed #f59e0b;outline-offset:4px}html[data-ads-debug="1"] .ad-sticky-bar{outline:3px dashed #ef4444;outline-offset:-3px}html[data-ads-debug="1"] .ad-video-dock{outline:3px dashed #ef4444;outline-offset:2px}html[data-ads-debug="1"] .ad-interstitial-card{outline:3px dashed #ef4444;outline-offset:4px}.ads-debug-bar{position:fixed;left:12px;bottom:12px;z-index:400;display:flex;align-items:center;gap:6px;padding:8px 10px;background:#111111f2;border:1px solid #ef4444;border-radius:12px;box-shadow:0 12px 32px #00000073}.ads-debug-title{font-size:.7rem;font-weight:800;letter-spacing:.06em;text-transform:uppercase;color:#fca5a5;margin-right:2px}.ads-debug-btn{font-size:.75rem;font-weight:700;color:#fff;background:#374151;border:1px solid #4b5563;border-radius:8px;padding:6px 10px;min-height:32px;cursor:pointer}.ads-debug-btn.active{background:#ef4444;border-color:#ef4444}