:root{--font-main: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;--font-mono: 'JetBrains Mono', monospace;--bg-primary: #ffffff;--bg-header: rgba(255, 255, 255, 0.7);--text-primary: #111827;--text-secondary: #4b5563;--text-muted: #9ca3af;--accent: #2563eb;--link-color: #2563eb;--border: #e5e7eb;--code-bg: #f3f4f6;--logo-filter: invert(1);--dropdown-bg: #ffffff;--dropdown-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);--max-width: 800px}[data-theme="dark"]{--bg-primary: #000000 !important;--bg-header: rgba(20, 20, 20, 0.7);--text-primary: #ffffff;--text-secondary: #a1a1aa;--text-muted: #71717a;--accent: #3b82f6;--link-color: #60a5fa;--border: #27272a;--code-bg: #18181b;--logo-filter: none;--dropdown-bg: #18181b;--dropdown-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.5)}.progress-container{position:fixed;top:0;left:0;width:100%;height:2px;background:transparent;z-index:2000}.progress-bar{height:100%;background:var(--accent);width:0%;transition:width 0.1s ease}@keyframes fadeIn{from{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}.site-content{min-height:60vh;animation:fadeIn 0.4s ease-out;padding-top:2rem}body{font-family:var(--font-main);background-color:var(--bg-primary);color:var(--text-primary);line-height:1.6;-webkit-font-smoothing:antialiased;transition:background-color 0.3s ease, color 0.3s ease;min-height:100vh}*{box-sizing:border-box;margin:0;padding:0}a{color:var(--link-color);text-decoration:none;transition:all 0.2s ease}a:hover{opacity:0.8;text-decoration:underline}.container{max-width:var(--max-width);margin:0 auto;padding:0 1.5rem 2rem}.site-header{position:sticky;top:1rem;z-index:1000;max-width:calc(var(--max-width) + 2rem);margin:1rem auto 3rem;background-color:var(--bg-header);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);border:1px solid var(--border);border-radius:100px;box-shadow:var(--dropdown-shadow);transition:all 0.3s ease}.header-content{padding:0.6rem 1.25rem;display:flex;justify-content:space-between;align-items:center}.site-logo{font-weight:700;text-decoration:none;color:var(--text-primary);display:flex;align-items:center;gap:0.5rem;font-size:1rem;letter-spacing:-0.01em}.logo-img{height:22px;width:auto;filter:var(--logo-filter);transition:filter 0.3s ease}.header-actions{display:flex;align-items:center;gap:0.5rem}.dropdown{position:relative}.dropdown-trigger{background:none;border:1px solid transparent;color:var(--text-primary);cursor:pointer;padding:0 0.75rem;border-radius:100px;display:flex;align-items:center;gap:0.4rem;font-size:0.875rem;font-weight:500;transition:all 0.2s ease;font-family:inherit;height:36px}.dropdown-trigger:hover{background-color:var(--code-bg);border-color:var(--border)}.dropdown-trigger .chevron{width:12px;height:12px;opacity:0.5;transition:transform 0.2s ease}.dropdown.open .chevron{transform:rotate(180deg)}.dropdown-menu{position:absolute;top:calc(100% + 0.75rem);right:0;background-color:var(--dropdown-bg);border:1px solid var(--border);border-radius:16px;padding:0.5rem;width:160px;box-shadow:var(--dropdown-shadow);display:none;z-index:100;animation:slideUp 0.2s ease-out}@keyframes slideUp{from{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}.dropdown.open .dropdown-menu{display:block}.dropdown-item{display:flex;align-items:center;gap:0.75rem;padding:0.625rem 0.75rem;color:var(--text-secondary);border-radius:10px;font-size:0.875rem;font-weight:500;transition:all 0.2s ease}.dropdown-item:hover{background-color:var(--code-bg);color:var(--text-primary);text-decoration:none;opacity:1}.dropdown-item.active{color:var(--text-primary);background-color:var(--code-bg)}.flag-icon{font-size:1.1rem}.theme-toggle{background:none;border:1px solid transparent;color:var(--text-primary);cursor:pointer;padding:0;border-radius:100px;display:flex;align-items:center;justify-content:center;transition:all 0.2s ease;width:36px;height:36px}.theme-toggle:hover{background-color:var(--code-bg);border-color:var(--border)}.theme-toggle svg{width:18px;height:18px}.sun-icon{display:block}.moon-icon{display:none}[data-theme="dark"] .sun-icon{display:none}[data-theme="dark"] .moon-icon{display:block}.back-link{display:inline-block;margin-bottom:2rem;text-decoration:none;color:var(--text-secondary);font-weight:500;font-size:0.875rem;transition:color 0.2s ease}.back-link:hover{color:var(--accent);text-decoration:none;opacity:1}.prose h1{font-size:2.5rem;font-weight:800;letter-spacing:-0.05em;margin-bottom:2rem;line-height:1.1}.prose h2{font-size:1.5rem;font-weight:700;margin-top:3rem;margin-bottom:1rem;letter-spacing:-0.025em}.prose p{margin-bottom:1.25rem;color:var(--text-secondary)}.prose b,.prose strong{color:var(--text-primary);font-weight:600}.prose ul,.prose ol{margin-bottom:1.5rem;padding-left:1.5rem;color:var(--text-secondary)}.prose li{margin-bottom:0.5rem}.prose code{font-family:var(--font-mono);background-color:var(--code-bg);padding:0.2rem 0.4rem;border-radius:4px;font-size:0.9em}.prose ul{list-style:none;padding-left:0}.prose ul li a{display:block;padding:1.25rem;background-color:var(--bg-primary);border:1px solid var(--border);border-radius:12px;text-decoration:none;color:var(--text-primary);font-weight:600;transition:all 0.2s ease;margin-bottom:0.75rem}.prose ul li a:hover{border-color:var(--accent);box-shadow:0 4px 12px rgba(0,0,0,0.1);transform:translateY(-2px);opacity:1;text-decoration:none}.not-found{text-align:center;padding:4rem 0}.not-found h1{font-size:6rem;opacity:0.2;margin-bottom:0}.not-found p{font-size:1.25rem;margin-bottom:2rem}.site-footer{margin-top:6rem;padding-top:3rem;border-top:1px solid var(--border)}.footer-grid{display:grid;grid-template-columns:1fr 1.5fr;gap:2rem}.footer-col .copyright{font-weight:600;color:var(--text-primary)}.footer-col .email a{color:var(--link-color);text-decoration:none;font-size:0.875rem}.footer-links{display:flex;flex-direction:column;gap:0.5rem}.footer-links a{text-decoration:none;color:var(--text-secondary);font-size:0.875rem;transition:color 0.2s ease}.footer-links a:hover{color:var(--accent);opacity:1;text-decoration:none}.footer-bottom{margin-top:3rem;color:var(--text-muted);font-size:0.75rem;text-transform:uppercase;letter-spacing:0.05em}@media (max-width: 850px){.site-header{max-width:calc(100% - 2rem)}}@media (max-width: 640px){.footer-grid{grid-template-columns:1fr}.prose h1{font-size:2rem}.site-header{top:0.5rem;margin-bottom:1.5rem}}