*{box-sizing:border-box}body{margin:0;font-family:Arial,sans-serif;background:#f5f7fb;color:#1d2633}header{height:64px;background:#171f3a;color:#fff;display:flex;align-items:center;padding:0 28px;gap:30px}header strong{font-size:19px}nav{display:flex;gap:18px;flex-wrap:wrap}nav a{color:#fff;text-decoration:none;font-size:14px}main{max-width:1200px;margin:30px auto;padding:0 18px}.top{display:flex;justify-content:space-between;align-items:center;gap:20px}.cards{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;margin:25px 0}.cards div,.panel{background:#fff;border-radius:10px;padding:22px;box-shadow:0 2px 12px #0000000d;margin-bottom:20px}.cards b{display:block;font-size:30px}.cards span{color:#687386;margin-top:5px;display:block}.btn,button{display:inline-block;border:0;border-radius:6px;background:#1769e0;color:#fff;padding:11px 17px;text-decoration:none;cursor:pointer}.secondary{background:#5d6777}.grid{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}input,select{width:100%;padding:11px;border:1px solid #ccd3df;border-radius:6px;background:#fff}label{display:block;margin:10px 0 6px}table{width:100%;border-collapse:collapse}th,td{text-align:left;padding:12px;border-bottom:1px solid #e7ebf1}th{background:#f3f6fa}.table-wrap{overflow:auto}.alert,.success{padding:12px;border-radius:6px;margin-bottom:15px}.alert{background:#ffe8e8;color:#9b2222}.success{background:#e4f8e9;color:#176b2d}.muted{color:#687386}.login-page{min-height:100vh;display:flex;align-items:center;justify-content:center;background:#eef1f7}.login-card{width:390px;background:#fff;padding:35px;border-radius:14px;box-shadow:0 8px 30px #0002}.login-card h1{margin:0 0 6px}.login-card form{margin-top:25px}.login-card input{margin:6px 0 16px}.login-card button{width:100%;font-size:16px}@media(max-width:800px){.cards{grid-template-columns:repeat(2,1fr)}.grid{grid-template-columns:1fr}header{height:auto;padding:15px 18px;align-items:flex-start;flex-direction:column;gap:12px}nav{gap:12px}main{margin:20px auto}}@media(max-width:480px){.cards{grid-template-columns:1fr}.top{align-items:flex-start;flex-direction:column}}