:root{--bg-primary:#fff;--bg-secondary:#f8fafc;--bg-card:#f8fafc;--border:#e2e8f0;--text-primary:#0f172a;--text-secondary:#64748b;--accent:#6366f1;--accent-hover:#4f46e5;--success:#22c55e;--warning:#f59e0b;--error:#ef4444;--radius:12px;--shadow:0 1px 3px #0000001a}@media (prefers-color-scheme:dark){:root{--bg-primary:#0f172a;--bg-secondary:#1e293b;--bg-card:#1e293b;--border:#334155;--text-primary:#f8fafc;--text-secondary:#94a3b8;--accent:#3b82f6;--accent-hover:#2563eb;--shadow:0 1px 3px #0000004d}}*,:before,:after{box-sizing:border-box;margin:0;padding:0}body{background-color:var(--bg-primary);color:var(--text-primary);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen-Sans,Ubuntu,Cantarell,Helvetica Neue,sans-serif;line-height:1.6}a{color:var(--accent);text-decoration:none}a:hover{text-decoration:underline}img{max-width:100%;display:block}button{cursor:pointer;font-family:inherit}.btn-primary{background-color:var(--accent);color:#fff;border-radius:var(--radius);border:none;justify-content:center;align-items:center;gap:.5rem;padding:.625rem 1.25rem;font-size:.9375rem;font-weight:600;transition:background-color .2s;display:inline-flex}.btn-primary:hover{background-color:var(--accent-hover)}.btn-secondary{color:var(--text-primary);border:1px solid var(--border);border-radius:var(--radius);background-color:#0000;justify-content:center;align-items:center;gap:.5rem;padding:.625rem 1.25rem;font-size:.9375rem;font-weight:600;transition:background-color .2s,border-color .2s;display:inline-flex}.btn-secondary:hover{background-color:var(--bg-secondary);border-color:var(--text-secondary)}