:root{--bg-primary: #f8f8f8;--bg-secondary: #ffffff;--text-primary: #1a1a1a;--text-secondary: #666666;--text-muted: #999999;--border-color: #e0e0e0;--accent-blue: #007aff;--accent-green: #16a34a;--accent-red: #ff4b4b;--accent-purple: #8b5cf6;--accent-hover: #0051d5;--focus-ring: rgba(0, 122, 255, .3);--font-mono: "Space Mono", "SF Mono", Monaco, "Cascadia Code", "Courier New", monospace;--font-sans: "Space Grotesk", -apple-system, BlinkMacSystemFont, "Segoe UI", "Roboto", "Helvetica Neue", Arial, sans-serif;--max-width: 800px;--spacing-unit: 1.5rem;--sidebar-width: 260px;--sidebar-bg: #f7f7f5;--sidebar-hover: rgba(0, 0, 0, .04);--sidebar-active: rgba(0, 122, 255, .08);--tree-indent: 1.5rem}@supports (color: oklch(0 0 0)){:root{--accent-blue: oklch(.62 .2 255);--accent-green: oklch(.62 .2 145);--accent-red: oklch(.62 .2 27);--accent-purple: oklch(.62 .2 310);--accent-hover: oklch(.55 .2 255);--focus-ring: oklch(.62 .2 255 / .3)}}*{box-sizing:border-box;margin:0;padding:0}html,body{height:100%;height:100dvh;overflow:hidden}.mobile-only{display:none}body{font-family:var(--font-sans);font-size:16px;line-height:1.6;color:var(--text-primary);background-color:var(--bg-primary);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}h1,h2,h3,h4,h5,h6{font-weight:500;line-height:1.3;margin-bottom:1rem}h1{font-size:2rem}h2{font-size:1.5rem}h3{font-size:1.25rem}p{margin-bottom:1rem}a{color:var(--accent-blue);text-decoration:none;transition:color .2s}a:hover{color:var(--accent-hover)}button{font-family:inherit;font-size:inherit;border:none;background:none;cursor:pointer;color:var(--text-primary);transition:all .2s}button:hover{color:var(--accent-blue)}button:focus-visible{outline:2px solid var(--accent-blue);outline-offset:2px}input,textarea{font-family:inherit;font-size:inherit;border:1px solid var(--border-color);border-radius:4px;padding:.5rem;background:var(--bg-secondary);color:var(--text-primary)}input:focus,textarea:focus{outline:none;border-color:var(--accent-blue);box-shadow:0 0 0 3px var(--focus-ring)}::-webkit-scrollbar{width:8px;height:8px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:var(--border-color);border-radius:4px}::-webkit-scrollbar-thumb:hover{background:var(--text-muted)}code{font-family:var(--font-mono);font-size:.9em;background:#0000000d;padding:.2em .4em;border-radius:3px}pre{font-family:var(--font-mono);font-size:.9em;background:#0000000d;padding:1rem;border-radius:4px;overflow-x:auto;margin-bottom:1rem}pre code{background:none;padding:0}table{width:100%;border-collapse:collapse;margin-bottom:1rem;font-size:.95em}th,td{text-align:left;padding:.75rem;border-bottom:1px solid var(--border-color)}th{font-weight:500;background:var(--bg-primary);position:sticky;top:0;z-index:10}tr:hover{background:#00000005}.container{max-width:var(--max-width);margin:0 auto;padding:0 var(--spacing-unit)}.card{background:var(--bg-secondary);border-radius:12px;padding:var(--spacing-unit);box-shadow:0 1px 3px #0000000a,0 4px 12px #00000008;transition:transform .2s,box-shadow .2s}.card:hover{transform:translateY(-2px);box-shadow:0 2px 6px #0000000f,0 8px 24px #0000000f}.divider{height:1px;background:var(--border-color);margin:var(--spacing-unit) 0}@media(max-width:768px){.mobile-only{display:flex}::-webkit-scrollbar{width:12px;height:12px}}