:root{--bg-primary: #1a1a22;--bg-secondary: #15151c;--bg-tertiary: #252530;--bg-elevated: #2a2a38;--text-primary: #f5f0e8;--text-secondary: #c4bdb0;--text-muted: #7d776a;--accent: #f59e6b;--accent-hover: #fbb896;--accent-secondary: #e17055;--border: #3a3a48;--border-subtle: #2a2a35;--font-display: "Fraunces", Georgia, serif;--font-body: "Lexend", -apple-system, sans-serif;--font-mono: "JetBrains Mono", ui-monospace, monospace}*{margin:0;padding:0;box-sizing:border-box}html{scroll-behavior:smooth}body{font-family:var(--font-body);background:var(--bg-primary);color:var(--text-primary);line-height:1.6;font-size:16px;-webkit-font-smoothing:antialiased;min-height:100vh}body.light-theme{--bg-primary: #faf9f7;--bg-secondary: #ffffff;--bg-tertiary: #f0eeeb;--bg-elevated: #e8e6e2;--text-primary: #1a1a1a;--text-secondary: #555555;--text-muted: #888888;--border: #ddd;--border-subtle: #eee}.algo-header,.algo-run-header{display:flex;align-items:center;justify-content:space-between;padding:20px 32px;border-bottom:1px solid var(--border-subtle);background:var(--bg-secondary);gap:16px}.algo-logo{display:flex;align-items:center;gap:12px;text-decoration:none;color:var(--text-primary)}.logo-icon{width:36px;height:36px;background:linear-gradient(135deg,var(--accent) 0%,var(--accent-secondary) 100%);border-radius:10px;display:flex;align-items:center;justify-content:center;font-family:var(--font-display);font-weight:700;font-size:18px;color:var(--bg-primary);box-shadow:0 4px 12px #f59e6b40}.algo-logo span{font-family:var(--font-display);font-size:20px;font-weight:600;letter-spacing:-.02em}.algo-page-title{font-family:var(--font-display);font-size:20px;font-weight:600;color:var(--accent)}.algo-nav{display:flex;gap:8px}.header-link{color:var(--text-secondary);text-decoration:none;font-size:14px;padding:8px 16px;border-radius:8px;transition:all .2s}.header-link:hover{color:var(--text-primary);background:var(--bg-tertiary)}.back-btn{display:flex;align-items:center;gap:8px;padding:10px 16px;background:var(--bg-tertiary);border:1px solid var(--border);border-radius:10px;color:var(--text-primary);font-family:var(--font-body);font-size:14px;font-weight:500;cursor:pointer;transition:all .2s}.back-btn:hover{background:var(--bg-elevated);border-color:var(--accent)}.theme-toggle{position:fixed;bottom:20px;right:20px;padding:10px 16px;background:var(--bg-tertiary);border:1px solid var(--border);border-radius:8px;color:var(--text-secondary);font-family:var(--font-body);font-size:13px;cursor:pointer;transition:all .2s;z-index:100}.theme-toggle:hover{background:var(--bg-elevated);color:var(--text-primary);border-color:var(--accent)}.algo-view{min-height:100vh;display:flex;flex-direction:column}.algo-main{flex:1;max-width:1100px;width:100%;margin:0 auto;padding:48px 32px 64px}.algo-intro{text-align:center;margin-bottom:48px}.intro-heading{font-family:var(--font-display);font-size:44px;font-weight:700;margin-bottom:12px;color:var(--accent);letter-spacing:-.02em}.intro-text{font-size:18px;color:var(--text-secondary);max-width:560px;margin:0 auto}.algo-section{margin-bottom:44px}.algo-section-head{margin-bottom:18px}.algo-section-title{font-family:var(--font-display);font-size:26px;font-weight:600;color:var(--text-primary);display:inline-flex;align-items:center;gap:12px}.algo-section-title:before{content:"";width:12px;height:12px;border-radius:4px;background:var(--algo-color, var(--accent))}.algo-section-sub{color:var(--text-muted);font-size:15px;margin-top:4px}.algo-cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:16px}.algo-card{position:relative;background:var(--bg-secondary);border-radius:14px;padding:20px 20px 18px;cursor:pointer;overflow:hidden;transition:transform .18s ease,background .18s ease;display:flex;flex-direction:column;min-height:150px}.algo-card:before{content:"";position:absolute;top:0;left:0;right:0;height:4px;background:var(--algo-color, var(--accent))}.algo-card:hover{transform:translateY(-3px);background:var(--bg-tertiary)}.algo-card:focus-visible{outline:none;background:var(--bg-tertiary);box-shadow:inset 0 0 0 2px var(--algo-color, var(--accent))}.algo-card-title{font-family:var(--font-display);font-size:19px;font-weight:600;margin-bottom:8px}.algo-card-blurb{font-size:14px;color:var(--text-secondary);line-height:1.5;flex:1}.algo-card-run{margin-top:14px;align-self:flex-start;font-size:13px;font-weight:500;color:var(--algo-color, var(--accent))}.algo-card-run:after{content:" →"}.algo-footer{text-align:center;padding:28px;color:var(--text-muted);font-size:13px;border-top:1px solid var(--border-subtle)}.algo-footer a{color:var(--text-secondary)}.algo-run-view{display:none;min-height:100vh;flex-direction:column}body.algo-open .algo-view{display:none}body.algo-open .algo-run-view{display:flex}.algo-run-title{font-family:var(--font-display);font-size:22px;font-weight:600}.algo-run-spacer{width:92px}.algo-run-main{flex:1;display:flex;justify-content:center;padding:32px 24px 64px}.algo-stage{width:100%;max-width:1040px}.algo-split{display:grid;grid-template-columns:minmax(0,440px) minmax(0,1fr);gap:28px;align-items:start}.algo-pane-viz{display:flex;flex-direction:column;align-items:center;gap:16px}.algo-canvas-wrap{width:100%;display:flex;justify-content:center}.algo-canvas{width:400px;max-width:100%;height:auto;aspect-ratio:1 / 1;border-radius:12px;background:#000;box-shadow:0 8px 30px #00000059}.algo-controls{display:flex;align-items:center;flex-wrap:wrap;justify-content:center;gap:10px}.algo-ctrl{padding:8px 16px;background:var(--bg-tertiary);border:none;border-radius:9px;color:var(--text-primary);font-family:var(--font-body);font-size:14px;font-weight:500;cursor:pointer;transition:background .15s,color .15s}.algo-ctrl:hover{background:var(--bg-elevated)}.algo-ctrl-play{min-width:84px}.algo-speed{display:flex;align-items:center;gap:6px;margin-left:6px}.algo-speed-label{color:var(--text-muted);font-size:13px;margin-right:2px}.algo-speed-btn{padding:8px 14px}.algo-speed-btn.active{background:color-mix(in srgb,var(--accent) 26%,var(--bg-tertiary));color:var(--text-primary)}.algo-speed-btn.active:hover{background:color-mix(in srgb,var(--accent) 34%,var(--bg-tertiary))}.algo-run-blurb{color:var(--text-secondary);font-size:15px;text-align:center;max-width:480px}.algo-run-actions{display:flex;gap:12px}.algo-run-link{text-decoration:none;padding:10px 18px;border-radius:10px;background:var(--accent);color:var(--bg-primary);font-weight:600;font-size:14px;transition:background .2s}.algo-run-link:hover{background:var(--accent-hover)}.algo-code-panel{width:100%;background:var(--bg-secondary);border-radius:12px;overflow:hidden}.algo-code-head{padding:10px 18px;font-family:var(--font-body);font-size:13px;font-weight:600;letter-spacing:.02em;color:var(--text-muted);border-bottom:1px solid var(--border-subtle)}.algo-code-block{margin:0;padding:10px 0;max-height:460px;overflow:auto;position:relative;font-family:var(--font-mono);font-size:12.5px;line-height:1.6;color:var(--text-secondary);tab-size:2}.algo-code-line{white-space:pre;padding:0 16px;border-left:3px solid transparent}.algo-code-line.active{background:color-mix(in srgb,var(--accent) 20%,transparent);border-left-color:var(--accent);color:var(--text-primary)}@media(max-width:860px){.algo-split{grid-template-columns:1fr;gap:18px}.algo-code-block{max-height:340px}}@media(max-width:600px){.algo-header,.algo-run-header{padding:14px 16px}.algo-main{padding:28px 16px 48px}.algo-run-main{padding:24px 14px 48px}.intro-heading{font-size:34px}.intro-text{font-size:16px}.algo-cards{grid-template-columns:1fr}}