*{box-sizing:border-box}body{margin:0;background:#f1f5f9;color:#1e293b;font:15px/1.6 Arial,sans-serif}a{color:#2563eb}.container{max-width:1100px;margin:auto;padding:24px 16px}.topnav{display:flex;align-items:center;justify-content:space-between;gap:20px;flex-wrap:wrap;padding:20px;background:#0f172a;color:white;border-radius:14px;margin-bottom:28px}.topnav a{color:white;text-decoration:none}.topnav .buttons{gap:16px}.topnav button{background:none;border:0;color:#fda4af;cursor:pointer;font:inherit}.buttons{display:flex;align-items:center;gap:10px;flex-wrap:wrap}form{margin:0}.card{background:white;border-radius:12px;padding:24px;margin-bottom:20px;box-shadow:0 3px 12px #0f172a0d}h1,h2,h3{line-height:1.3}h1{font-size:30px;margin:0 0 10px}h3{margin-top:0}.hint,.subtitle{color:#64748b}.btn{display:inline-block;padding:12px 18px;border:0;border-radius:8px;color:white;text-decoration:none;background:#334155;font:bold 14px Arial,sans-serif;cursor:pointer}.view{background:#2563eb}.edit{background:#7c3aed}.save{background:#15803d}.delete{background:#dc2626}.back{background:#334155}.success,.error{padding:16px;border-radius:8px;margin:16px 0;overflow-wrap:anywhere}.success{background:#dcfce7;color:#166534}.error{background:#fee2e2;color:#991b1b}label{display:block;font-weight:bold}input[type=text],input[type=password],input[type=search],input[type=url],select,textarea{width:100%;padding:13px;border:1px solid #cbd5e1;border-radius:8px;font:inherit;margin:8px 0 18px}input:focus,textarea:focus,select:focus{outline:2px solid #2563eb;outline-offset:2px}textarea{min-height:340px;font:14px/1.6 Consolas,monospace;background:#0f172a;color:#e2e8f0;tab-size:2;resize:vertical}input[type=file]{display:block;margin:10px 0 22px;max-width:100%}.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.metric{font-size:36px;font-weight:bold}.login{max-width:440px;margin:9vh auto;padding:16px}.topnav form{display:inline-block}[hidden]{display:none!important}@media(max-width:650px){.grid{grid-template-columns:1fr}.card{padding:18px}.topnav{padding:18px}.topnav .buttons{font-size:13px;gap:12px}h1{font-size:25px}}