*{box-sizing:border-box}body{margin:0;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;background:#f6f7f9;color:#1a1a1a}.container{max-width:960px;margin:0 auto;padding:24px}.nav{display:flex;justify-content:space-between;align-items:center;background:#fff;padding:12px 24px;border-bottom:1px solid #e5e7eb}.nav a{margin-right:12px;color:#2563eb;text-decoration:none}.btn{background:#2563eb;color:#fff;border:0;padding:8px 16px;border-radius:6px;cursor:pointer;font-size:14px}.btn:disabled{background:#94a3b8;cursor:not-allowed}.btn-secondary{background:#6b7280}.btn-danger{background:#dc2626}.card{background:#fff;padding:16px;border-radius:8px;border:1px solid #e5e7eb;margin-bottom:12px}.form{display:flex;flex-direction:column;gap:8px;max-width:400px}.form input,.form select,.form textarea{padding:8px;border:1px solid #d1d5db;border-radius:6px;font-size:14px}.error{color:#dc2626;font-size:14px}.grid{display:grid;gap:12px;grid-template-columns:repeat(auto-fill,minmax(280px,1fr))}h1{margin-top:0}label{display:flex;flex-direction:column;gap:4px;font-size:14px}