:root{--bg: #0f1117;--surface: #1a1d27;--surface2: #242736;--border: #2e3347;--text: #e2e8f0;--text-muted: #94a3b8;--accent: #6366f1;--accent-hover: #818cf8;--green: #34d399;--yellow: #fbbf24;--red: #f87171;--code-bg: #0d1117;--code-border: #1e2433;--font-mono: "Fira Code", "Cascadia Code", "Consolas", monospace;--max-width: 860px}*{box-sizing:border-box;margin:0;padding:0}html{font-size:16px;scroll-behavior:smooth}body{background:var(--bg);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;line-height:1.6}.site-nav{background:var(--surface);border-bottom:1px solid var(--border);padding:0 32px;display:flex;align-items:center;gap:24px;height:56px;position:sticky;top:0;z-index:100}.site-nav .brand{font-weight:700;font-size:15px;color:var(--text);text-decoration:none;margin-right:auto}.site-nav .brand span{color:var(--accent-hover)}.site-nav a{font-size:14px;color:var(--text-muted);text-decoration:none;transition:color .15s}.site-nav a:hover{color:var(--text)}.nav-search{display:flex;align-items:center}.page{max-width:var(--max-width);margin:0 auto;padding:48px 32px 96px}h1{font-size:2rem;font-weight:700;color:var(--text);margin-bottom:8px;line-height:1.2}h2{font-size:1.4rem;font-weight:600;color:var(--text);margin:40px 0 16px;padding-bottom:8px;border-bottom:1px solid var(--border)}h3{font-size:1.1rem;font-weight:600;color:var(--text);margin:24px 0 10px}p{color:var(--text-muted);margin-bottom:16px}.lead{font-size:1.05rem;color:var(--text);margin-bottom:24px}ul,ol{padding-left:20px;color:var(--text-muted);margin-bottom:16px}li{margin-bottom:4px}a{color:var(--accent-hover);text-decoration:none}a:hover{text-decoration:underline}code{font-family:var(--font-mono);font-size:.875em;background:var(--surface2);padding:2px 6px;border-radius:4px;color:#a5f3fc}pre{background:var(--code-bg);border:1px solid var(--code-border);border-radius:8px;padding:20px;overflow-x:auto;margin:16px 0 24px;font-family:var(--font-mono);font-size:13px;line-height:1.7}pre code{background:none;padding:0;font-size:inherit;color:var(--text)}.card-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:16px;margin:24px 0}.tutorial-card{display:block;background:var(--surface);border:1px solid var(--border);border-radius:10px;padding:20px;text-decoration:none;transition:border-color .15s,transform .15s}.tutorial-card:hover{border-color:var(--accent);transform:translateY(-2px);text-decoration:none}.tutorial-card .card-title{font-size:15px;font-weight:600;color:var(--text);display:block;margin-bottom:6px}.tutorial-card .card-desc{font-size:13px;color:var(--text-muted);display:block;margin-bottom:12px;line-height:1.5}.tutorial-card .card-meta{display:flex;align-items:center;gap:8px;flex-wrap:wrap}.badge{display:inline-block;font-size:11px;font-weight:600;padding:2px 8px;border-radius:20px;text-transform:capitalize}.badge-beginner{background:#34d39926;color:var(--green)}.badge-intermediate{background:#fbbf241f;color:var(--yellow)}.badge-advanced{background:#f871711f;color:var(--red)}.topic-tag{font-size:11px;color:var(--text-muted);background:var(--surface2);border:1px solid var(--border);border-radius:4px;padding:2px 6px}.tutorial-layout{display:grid;grid-template-columns:1fr 220px;gap:48px;max-width:1100px;margin:0 auto;padding:48px 32px 96px;align-items:start}.tutorial-content h1{margin-bottom:16px}.tutorial-meta{display:flex;align-items:center;gap:8px;flex-wrap:wrap;margin-bottom:32px;padding-bottom:24px;border-bottom:1px solid var(--border)}.toc{position:sticky;top:72px;max-height:calc(100vh - 104px);overflow-y:auto;background:var(--surface);border:1px solid var(--border);border-radius:8px;padding:16px;font-size:13px}.toc-title{font-size:11px;font-weight:700;color:var(--text-muted);text-transform:uppercase;letter-spacing:.08em;margin-bottom:10px}.toc ol{padding-left:16px;margin:0}.toc li{margin-bottom:6px}.toc a{color:var(--text-muted);font-size:13px}.toc a:hover{color:var(--text);text-decoration:none}.callout{border-radius:8px;padding:14px 18px;margin:20px 0;border-left:4px solid;font-size:14px}.callout p{margin:0;color:var(--text)}.callout-title{font-weight:600;display:block;margin-bottom:4px;font-size:12px;text-transform:uppercase;letter-spacing:.05em}.callout-info{background:#6366f11a;border-color:var(--accent)}.callout-tip{background:#34d39914;border-color:var(--green)}.callout-warning{background:#fbbf2414;border-color:var(--yellow)}.callout-info .callout-title{color:var(--accent-hover)}.callout-tip .callout-title{color:var(--green)}.callout-warning .callout-title{color:var(--yellow)}.hero{padding:64px 32px 48px;text-align:center;max-width:var(--max-width);margin:0 auto}.hero h1{font-size:2.8rem;margin-bottom:16px}.hero p{font-size:1.1rem;color:var(--text-muted);margin-bottom:0}.search-wrap{max-width:560px;margin:32px auto 0}.pagefind-ui__search-input{background:var(--surface)!important;border:1px solid var(--border)!important;border-radius:8px!important;color:var(--text)!important;font-size:15px!important;padding:12px 16px!important}.pagefind-ui__search-input:focus{outline:none!important;border-color:var(--accent)!important}.pagefind-ui__result{background:var(--surface)!important;border:1px solid var(--border)!important;border-radius:8px!important;margin-top:8px!important}.pagefind-ui__result-title{color:var(--accent-hover)!important}.pagefind-ui__result-excerpt{color:var(--text-muted)!important}.section-label{font-size:12px;font-weight:700;color:var(--text-muted);text-transform:uppercase;letter-spacing:.1em;margin-bottom:16px}.step-badge{display:inline-block;font-size:12px;font-weight:600;padding:3px 10px;border-radius:20px;background:#6366f126;color:var(--accent-hover);margin-bottom:10px;text-transform:uppercase;letter-spacing:.06em}.code-block{margin:16px 0 24px;border:1px solid var(--code-border);border-radius:8px;overflow:hidden}.code-block pre{margin:0;border:none;border-radius:0}.code-header{background:var(--surface2);border-bottom:1px solid var(--code-border);padding:8px 16px;display:flex;justify-content:space-between;align-items:center;gap:12px}.code-filename{font-family:var(--font-mono);font-size:12px;color:var(--text-muted)}.code-link{font-size:11px;color:var(--accent);text-decoration:none;white-space:nowrap;padding:2px 8px;background:#6366f11f;border-radius:4px}.code-link:hover{background:#6366f140;text-decoration:none}.file-ref{display:inline-flex;align-items:center;gap:6px;background:var(--surface2);border:1px solid var(--border);border-radius:6px;padding:4px 10px;font-family:var(--font-mono);font-size:12px;color:var(--text-muted);margin:4px 4px 4px 0}.steps-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:12px;margin:24px 0}.step-card{display:block;background:var(--surface);border:1px solid var(--border);border-radius:8px;padding:16px;text-decoration:none;transition:border-color .15s,background .15s}.step-card:hover{border-color:var(--accent);background:#6366f10f;text-decoration:none}.step-card .step-num{font-size:11px;font-weight:700;color:var(--accent);text-transform:uppercase;letter-spacing:.08em;display:block;margin-bottom:4px}.step-card .step-name{font-size:14px;font-weight:600;color:var(--text);display:block;margin-bottom:4px}.step-card .step-desc{font-size:12px;color:var(--text-muted);display:block;line-height:1.4}.skill-row{display:flex;flex-wrap:wrap;gap:8px;margin:12px 0}.skill-pill{font-size:12px;padding:4px 12px;border-radius:20px;font-weight:500}.skill-need{background:#34d3991f;color:var(--green);border:1px solid rgba(52,211,153,.25)}.skill-noneed{background:#94a3b814;color:var(--text-muted);border:1px solid var(--border);text-decoration:line-through;opacity:.7}.tools-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:12px;margin:20px 0}.tool-card{background:var(--surface);border:1px solid var(--border);border-radius:8px;padding:16px}.tool-card .tool-name{font-size:14px;font-weight:600;color:var(--text);display:block;margin-bottom:4px}.tool-card .tool-rec{font-size:12px;color:var(--accent-hover);display:block;margin-bottom:6px;font-family:var(--font-mono)}.tool-card .tool-desc{font-size:12px;color:var(--text-muted);line-height:1.5}.token-keyword{color:#ff79c6}.token-comment{color:#6272a4;font-style:italic}.token-string{color:#f1fa8c}.token-number{color:#bd93f9}.token-type{color:#8be9fd}.token-fn{color:#50fa7b}.token-add{background:#34d3991f;color:#34d399}.token-remove{background:#f871711f;color:#f87171}.series-header{margin-bottom:32px;padding-bottom:24px;border-bottom:1px solid var(--border)}.series-badge{font-size:12px;font-weight:600;color:var(--accent-hover);text-transform:uppercase;letter-spacing:.06em;margin-bottom:12px}.series-meta{display:flex;align-items:center;gap:8px;flex-wrap:wrap;margin-top:16px}.series-card{border-left:3px solid var(--accent)}.series-list{display:flex;flex-direction:column;gap:2px;margin:16px 0 32px}.series-item{display:flex;align-items:center;gap:16px;padding:14px 18px;background:var(--surface);border:1px solid var(--border);border-radius:8px;text-decoration:none;transition:border-color .15s,background .15s}.series-item:hover{border-color:var(--accent);background:#6366f10f;text-decoration:none}.series-item-num{font-size:14px;font-weight:700;color:var(--accent);min-width:24px;text-align:center}.series-item-body{flex:1;min-width:0}.series-item-title{display:block;font-size:14px;font-weight:600;color:var(--text);margin-bottom:2px}.series-item-desc{display:block;font-size:12px;color:var(--text-muted);line-height:1.4;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.series-item-type{font-size:11px;font-weight:600;padding:2px 8px;border-radius:20px;text-transform:uppercase;letter-spacing:.04em;white-space:nowrap}.series-type-game{background:#6366f126;color:var(--accent-hover)}.series-type-concept{background:#34d3991f;color:var(--green)}.page-nav{display:flex;justify-content:space-between;margin-top:48px;padding-top:24px;border-top:1px solid var(--border);gap:16px}.page-nav a{display:flex;align-items:center;gap:8px;padding:12px 18px;background:var(--surface);border:1px solid var(--border);border-radius:8px;color:var(--text);text-decoration:none;font-size:14px;transition:border-color .15s,background .15s;max-width:280px}.page-nav a:hover{border-color:var(--accent);background:#6366f114;text-decoration:none}.page-nav .prev{flex-direction:row}.page-nav .next{flex-direction:row-reverse;margin-left:auto;text-align:right}.page-nav .nav-label{font-size:11px;color:var(--text-muted);display:block;text-transform:uppercase;letter-spacing:.05em}.progress-wrap{display:flex;align-items:center;gap:12px;margin-bottom:16px}.progress-bar{flex:1;height:6px;background:var(--surface2);border-radius:3px;overflow:hidden}.series-bar{height:8px}.progress-fill{height:100%;background:var(--accent);border-radius:3px;transition:width .3s ease;width:0}.progress-text{font-size:12px;color:var(--text-muted);white-space:nowrap}.step-check{display:inline-flex;align-items:center;justify-content:center;width:20px;height:20px;border:2px solid var(--border);border-radius:4px;background:transparent;cursor:pointer;margin-right:8px;padding:0;flex-shrink:0;transition:border-color .15s,background .15s;vertical-align:middle;position:relative;top:-1px}.step-check:hover{border-color:var(--accent)}.step-check.checked{background:var(--accent);border-color:var(--accent)}.step-check.checked:after{content:"✓";color:#fff;font-size:12px;font-weight:700}.milestone-indicator{font-size:14px;margin-left:8px}.milestone-indicator.complete{color:var(--green)}.series-progress-wrap{margin-bottom:24px}.series-progress-row{display:flex;flex-direction:column;gap:10px;margin-bottom:12px}.series-progress-col{min-width:0}.progress-label{display:block;font-size:12px;color:var(--text-muted);margin-bottom:6px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.series-fill-step{background:var(--green)}.continue-btn{display:inline-flex;align-items:center;gap:6px;padding:8px 16px;background:var(--accent);color:#fff;border-radius:6px;font-size:14px;font-weight:600;text-decoration:none;transition:background .15s}.continue-btn:hover{background:var(--accent-hover);text-decoration:none}.series-item-done{opacity:.6}.series-item-done .series-item-title:after{content:" ✓";color:var(--green);font-size:12px}.continue-wrap{margin-bottom:32px}.continue-card-wrap{position:relative}.continue-card{border-left:3px solid var(--accent)}.dismiss-btn{position:absolute;top:8px;right:8px;width:24px;height:24px;border:none;background:var(--surface2);color:var(--text-muted);border-radius:4px;font-size:16px;line-height:1;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:background .15s,color .15s;z-index:1}.dismiss-btn:hover{background:var(--border);color:var(--text)}.continue-bars{display:flex;flex-direction:column;gap:8px;margin-top:8px}.continue-bar-col{min-width:0}.breadcrumb{display:flex;align-items:center;gap:8px;font-size:13px;margin-bottom:16px}.breadcrumb a{color:var(--accent-hover);text-decoration:none}.breadcrumb a:hover{text-decoration:underline}.breadcrumb-sep{color:var(--text-muted)}.breadcrumb span:last-child{color:var(--text-muted)}footer{border-top:1px solid var(--border);padding:24px 32px;text-align:center;font-size:13px;color:var(--text-muted)}@media(max-width:768px){.tutorial-layout{grid-template-columns:1fr}.toc{display:none}.hero h1{font-size:2rem}}