:root{--font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;--font-mono: "SF Mono", "Fira Code", "Fira Mono", monospace;--radius: 8px;--radius-lg: 12px;--radius-xl: 16px;--transition: .2s ease;--max-width: 1100px;--header-h: 64px;--bg-primary: #0b0d17;--bg-secondary: #11131f;--bg-surface: #181b2c;--bg-card: #1e2136;--bg-elevated: #252841;--text-primary: #e8eaed;--text-secondary: #9aa0a6;--text-muted: #5f6368;--border: #2d3142;--border-light: #363a50;--accent-subtle: rgba(79,108,247,.08);--shadow-sm: 0 1px 3px rgba(0,0,0,.3);--shadow-md: 0 4px 12px rgba(0,0,0,.4);--shadow-lg: 0 8px 30px rgba(0,0,0,.5)}[data-theme=light]{--bg-primary: #f0f2f5;--bg-secondary: #ffffff;--bg-surface: #ffffff;--bg-card: #ffffff;--bg-elevated: #f8f9fa;--text-primary: #1a1d2e;--text-secondary: #5f6368;--text-muted: #9aa0a6;--border: #dadce0;--border-light: #e8eaed;--accent-subtle: rgba(79,108,247,.06);--shadow-sm: 0 1px 3px rgba(0,0,0,.08);--shadow-md: 0 4px 12px rgba(0,0,0,.06);--shadow-lg: 0 8px 30px rgba(0,0,0,.08)}[data-palette=indigo]{--accent: #4f6cf7;--accent-hover: #3b57e0;--accent-glow: rgba(79,108,247,.3)}[data-palette=emerald]{--accent: #059669;--accent-hover: #047857;--accent-glow: rgba(5,150,105,.3)}[data-palette=violet]{--accent: #7c3aed;--accent-hover: #6d28d9;--accent-glow: rgba(124,58,237,.3)}[data-palette=rose]{--accent: #e11d48;--accent-hover: #be123c;--accent-glow: rgba(225,29,72,.3)}[data-palette=amber]{--accent: #d97706;--accent-hover: #b45309;--accent-glow: rgba(217,119,6,.3)}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}html{scroll-behavior:smooth}body{font-family:var(--font-sans);background:var(--bg-primary);color:var(--text-primary);line-height:1.6;transition:background var(--transition),color var(--transition);min-height:100vh}a{color:var(--accent);text-decoration:none;transition:color var(--transition)}a:hover{color:var(--accent-hover)}img{max-width:100%;height:auto}h1,h2,h3,h4{line-height:1.3;font-weight:700}h1{font-size:2.8rem;letter-spacing:-.02em}h2{font-size:2rem;letter-spacing:-.01em}h3{font-size:1.3rem}@media(max-width:640px){h1{font-size:2rem}h2{font-size:1.5rem}}.container{max-width:var(--max-width);margin:0 auto;padding:0 24px}.section{padding:64px 0}.section-alt{background:var(--bg-surface);padding:64px 0}.section-accent{background:linear-gradient(135deg,var(--accent),color-mix(in srgb,var(--accent) 60%,#000));color:#fff;padding:64px 0}.section-accent h2,.section-accent p{color:#fff}.section-dark{background:var(--bg-primary)}@media(max-width:640px){.section,.section-alt,.section-accent{padding:48px 0}}.section-title{text-align:center;margin-bottom:48px}.section-title p{color:var(--text-secondary);font-size:1.1rem;margin-top:8px;max-width:600px;margin-left:auto;margin-right:auto}.btn{display:inline-flex;align-items:center;gap:8px;padding:14px 32px;border-radius:var(--radius);font-weight:600;font-size:1rem;cursor:pointer;transition:all var(--transition);border:none;text-decoration:none}.btn-primary{background:var(--accent);color:#fff;box-shadow:0 0 20px var(--accent-glow)}.btn-primary:hover{background:var(--accent-hover);transform:translateY(-1px);color:#fff}.btn-outline{background:transparent;color:var(--text-primary);border:1px solid var(--border)}.btn-outline:hover{background:var(--accent-subtle);border-color:var(--accent);color:var(--accent)}.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:32px}.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}@media(max-width:768px){.grid-2,.grid-3{grid-template-columns:1fr}}.card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-lg);padding:32px;text-align:center;transition:all var(--transition)}.card:hover{border-color:var(--accent);box-shadow:0 0 30px var(--accent-glow);transform:translateY(-2px)}.card-icon{font-size:2rem;margin-bottom:16px}.card h3{margin-bottom:8px}.card p{color:var(--text-secondary);font-size:.95rem;line-height:1.6;text-align:center}.card-btn{display:inline-block;margin-top:16px;padding:10px 24px;border-radius:var(--radius);background:var(--accent);color:#fff;font-weight:600;font-size:.9rem;text-decoration:none;transition:all var(--transition)}.card-btn:hover{background:var(--accent-hover);transform:translateY(-1px);color:#fff}header{position:sticky;top:0;z-index:100;background:#0b0d17d9;backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border-bottom:1px solid var(--border);transition:background var(--transition),border-color var(--transition)}[data-theme=light] header{background:#ffffffd9}.header-inner{max-width:var(--max-width);margin:0 auto;display:flex;align-items:center;justify-content:space-between;height:var(--header-h);padding:0 24px}.header-left{flex:1;display:flex;justify-content:flex-start}.header-center{flex:0 1 auto;display:flex;justify-content:center}.header-right{flex:1;display:flex;justify-content:flex-end;align-items:center;gap:6px}.header-logo{display:flex;align-items:center;gap:10px;font-weight:700;font-size:1.2rem;color:var(--text-primary);text-decoration:none}.header-logo img{width:36px;height:36px;border-radius:var(--radius);object-fit:contain}.header-nav{display:flex;gap:24px;align-items:center}.header-nav a{color:var(--text-secondary);font-size:.9rem;font-weight:500;transition:color var(--transition);position:relative}.header-nav a:hover,.header-nav a.active{color:var(--accent)}.theme-controls{display:flex;align-items:center;gap:6px}.theme-btn{background:var(--bg-surface);border:1px solid var(--border);border-radius:var(--radius);width:36px;height:36px;display:flex;align-items:center;justify-content:center;cursor:pointer;font-size:1.1rem;transition:all var(--transition);color:var(--text-secondary);padding:0;line-height:1}.theme-btn:hover{border-color:var(--accent);color:var(--accent)}.palette-dots{display:flex;gap:4px;margin-left:4px}.palette-dot{width:16px;height:16px;border-radius:50%;border:2px solid transparent;cursor:pointer;transition:all var(--transition)}.palette-dot:hover{transform:scale(1.2)}.palette-dot.active{border-color:var(--text-primary)}footer{border-top:1px solid var(--border);padding:48px 24px;text-align:center;color:var(--text-muted);font-size:.85rem}footer a{color:var(--text-secondary)}footer a:hover{color:var(--accent)}footer .footer-links{display:flex;justify-content:center;gap:24px;margin-bottom:16px;flex-wrap:wrap}.nav-toggle{display:none;background:none;border:none;color:var(--text-primary);font-size:1.5rem;cursor:pointer;padding:4px}@media(max-width:768px){.nav-toggle{display:block}.header-left{flex:0 1 auto;gap:8px}.header-center{flex:1;order:3}.header-right{flex:0 1 auto}.header-nav{display:none;position:absolute;top:var(--header-h);left:0;right:0;background:var(--bg-surface);border-bottom:1px solid var(--border);flex-direction:column;padding:16px 24px;gap:12px;z-index:100}.header-nav.open{display:flex}}