*{box-sizing:border-box}body{margin:0;background:#f3f4f6;color:#17202a;font:15px Arial,sans-serif}header{background:#111827;color:#fff;padding:14px 5%;display:flex;justify-content:space-between;align-items:center;gap:20px;flex-wrap:wrap}header b{font-size:20px}nav{display:flex;gap:16px;flex-wrap:wrap}nav a{color:#fff;text-decoration:none}main{max-width:1150px;margin:28px auto;padding:0 18px}.cards{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}.card,.panel{background:#fff;border-radius:14px;padding:20px;box-shadow:0 4px 18px #0001;margin-bottom:18px}.card span{color:#6b7280}.card strong{display:block;font-size:26px;margin-top:8px}.grid{display:grid;grid-template-columns:1fr 1.4fr;gap:18px}label{display:block;font-weight:bold;margin:12px 0 6px}input,select,textarea{width:100%;padding:10px;border:1px solid #d1d5db;border-radius:8px;font:inherit}textarea{min-height:90px}.btn{display:inline-block;padding:10px 15px;border:0;border-radius:8px;background:#e5e7eb;color:#111827;text-decoration:none;cursor:pointer}.primary{background:#2563eb;color:#fff}.full{width:100%;margin-top:14px}table{width:100%;border-collapse:collapse}th,td{text-align:left;padding:10px;border-bottom:1px solid #e5e7eb}.login{min-height:100vh;display:grid;place-items:center;background:linear-gradient(135deg,#111827,#2563eb)}.loginbox{width:min(400px,92%);background:#fff;padding:32px;border-radius:18px;box-shadow:0 20px 60px #0004}.loginbox h1{text-align:center;margin:0}.loginbox p{text-align:center;color:#6b7280}.logo{text-align:center;font-size:48px}.alert{padding:12px;border-radius:8px;background:#fee2e2;color:#991b1b}.narrow{max-width:700px}@media(max-width:800px){.cards,.grid{grid-template-columns:1fr 1fr}}@media(max-width:550px){.cards,.grid{grid-template-columns:1fr}}