:root{--n:#08263a;--b:#087bb5;--g:#1cb477;--bg:#edf4f6;--l:#d4e2e8;--t:#17394f;--r:#d24a55}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--t);font:14px Arial;line-height:1.5}main{max-width:1380px;margin:auto;padding:30px 34px}header{display:flex;justify-content:space-between;align-items:center;margin-bottom:28px}h1{color:var(--n)}nav{display:flex;gap:4px;background:#fff;border:1px solid var(--l);padding:5px;border-radius:10px}nav a{padding:10px 13px;border-radius:7px;text-decoration:none;color:#456;font-weight:bold}nav a:hover,nav a.active{background:#e6f3f8;color:var(--b)}section{background:#fff;border:1px solid var(--l);border-radius:14px;padding:24px;margin:18px 0;box-shadow:0 18px 45px #0b334b12}h2{color:var(--n)}.grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:13px}.grid input,.grid select,.grid button{width:100%;padding:12px;border:1px solid #c8d9e1;border-radius:8px;font:inherit}.grid button,button{background:linear-gradient(100deg,var(--b),#0c95a5);color:#fff;border:0;font-weight:bold;cursor:pointer;border-radius:8px;padding:10px 15px}.danger{background:var(--r)!important;color:#fff!important}section table a{background:#e8f3f7;color:var(--b);border:1px solid #c9dfe8;border-radius:7px;padding:7px 10px;text-decoration:none;font-weight:bold}table{width:100%;border-collapse:collapse;min-width:850px}th,td{padding:13px;border-bottom:1px solid #e3edf0;text-align:left}th{background:var(--n);color:#b9d9e9;font-size:10px;text-transform:uppercase}tr:hover td{background:#f6fbfc}.stats{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}.stats article{background:#fff;border:1px solid var(--l);border-radius:12px;padding:21px}.stats strong{display:block;color:var(--b);font-size:28px}.login{max-width:420px;margin:12vh auto;background:#fff;padding:36px;border-radius:16px}.login input,.login button{width:100%;padding:13px;margin:7px 0;border:1px solid #c8d9e1;border-radius:8px}.err{background:#ffecef;color:#a52d3b;padding:11px;border-radius:8px}@media(max-width:850px){main{padding:20px}.grid,.stats{grid-template-columns:1fr}header{display:block}nav{margin-top:15px;flex-wrap:wrap}}