:root{--background:#fafafa;--foreground:#0a0a0a;--card:#fff;--card-foreground:#0a0a0a;--primary:#0a0a0a;--primary-foreground:#fafafa;--muted:#f5f5f5;--muted-foreground:#737373;--border:#e5e5e5;--radius:0.5rem}@media (prefers-color-scheme:dark){:root{--background:#0a0a0a;--foreground:#fafafa;--card:#171717;--card-foreground:#fafafa;--primary:#fafafa;--primary-foreground:#0a0a0a;--muted:#262626;--muted-foreground:#a3a3a3;--border:#262626}}*{margin:0;padding:0;box-sizing:border-box}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,sans-serif;background:var(--background);color:var(--foreground);min-height:100vh}.container{max-width:1200px;margin:0 auto;padding:0 1rem}.btn{display:inline-flex;align-items:center;justify-content:center;gap:.5rem;padding:.5rem 1rem;font-size:.875rem;font-weight:500;border-radius:var(--radius);border:none;cursor:pointer;transition:all .2s;text-decoration:none}.btn-primary{background:var(--primary);color:var(--primary-foreground)}.btn-primary:hover{opacity:.9}.btn-outline{background:transparent;border:1px solid var(--border);color:var(--foreground)}.btn-outline:hover{background:var(--muted)}.card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:1.5rem}