:root{--bg:#fff;--text:#1a1a1a;--accent:#0070f3;--border:#e5e5e5;--code-bg:#f5f5f5}[data-theme=dark]{--bg:#0d0d0d;--text:#e8e8e8;--accent:#60a5fa;--border:#333;--code-bg:#1a1a1a}*{box-sizing:border-box;margin:0;padding:0}html{scroll-behavior:smooth}body{background-color:var(--bg);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,Fira Sans,Droid Sans,Helvetica Neue,sans-serif;line-height:1.6;transition:background-color .3s,color .3s}a{color:var(--accent);text-decoration:none}a:hover{text-decoration:underline}button{cursor:pointer;background-color:var(--accent);color:#fff;border:none;border-radius:4px;padding:.5rem 1rem;font-family:inherit;transition:opacity .2s}button:hover{opacity:.8}button:disabled{opacity:.5;cursor:not-allowed}input,textarea{border:1px solid var(--border);background-color:var(--bg);color:var(--text);border-radius:4px;padding:.5rem;font-family:inherit}input:focus,textarea:focus{border-color:var(--accent);outline:none;box-shadow:0 0 0 2px #0070f31a}code{background-color:var(--code-bg);border-radius:2px;padding:.2rem .4rem;font-family:Menlo,Monaco,Courier New,monospace;font-size:.9em}pre{background-color:var(--code-bg);border-radius:4px;margin:1rem 0;padding:1rem;overflow-x:auto}pre code{background-color:#0000;border-radius:0;padding:0}h1,h2,h3,h4,h5,h6{margin:1.5rem 0 .5rem;font-weight:600}h1{font-size:2.5rem}h2{font-size:2rem}h3{font-size:1.5rem}h4{font-size:1.25rem}p{margin:1rem 0}ul,ol{margin:1rem 0;padding-left:2rem}li{margin:.25rem 0}blockquote{border-left:4px solid var(--accent);color:var(--text);opacity:.8;margin:1rem 0;padding-left:1rem}hr{border:none;border-top:1px solid var(--border);margin:2rem 0}table{border-collapse:collapse;width:100%;margin:1rem 0}table th,table td{border:1px solid var(--border);text-align:left;padding:.5rem}table th{background-color:var(--code-bg);font-weight:600}img{border-radius:4px;max-width:100%;height:auto}@keyframes spin{to{transform:rotate(360deg)}}