:root{--bg: #f5f5f5;--surface: #ffffff;--text: #222222;--text-muted: #666666;--border: #dddddd;--primary: #e3350d;--radius: 8px}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text);font-family:system-ui,-apple-system,Segoe UI,Roboto,sans-serif;line-height:1.5}a{color:var(--primary)}.btn{display:inline-block;padding:.5rem 1rem;border:1px solid var(--border);border-radius:var(--radius);background:var(--surface);color:var(--text);font:inherit;text-decoration:none;cursor:pointer;transition:background .2s ease}.btn:hover:not(:disabled){background:var(--bg)}.btn:disabled{opacity:.5;cursor:not-allowed}.btn.primary{border-color:var(--primary);background:var(--primary);color:#fff}.btn.primary:hover:not(:disabled){background:#c22c0a}.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(180px,1fr));gap:1rem}.spinner{width:2.5rem;height:2.5rem;margin:3rem auto;border:4px solid var(--border);border-top-color:var(--primary);border-radius:50%;animation:spin .8s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}@keyframes fade-in{0%{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}@media(max-width:480px){.grid{grid-template-columns:repeat(2,1fr);gap:.75rem}}