:root{--navy:#161b2b;--blue:#5264ec;--muted:#707a90;--line:#e7eaf0}*{box-sizing:border-box}body{margin:0;background:#f6f7fb;color:var(--navy);font:15px Arial,sans-serif}header{height:66px;background:#fff;border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;padding:0 max(24px,calc((100% - 1100px)/2))}.logo{font-size:20px;color:var(--navy);font-weight:bold;text-decoration:none}.logo span{color:var(--blue)}nav{display:flex;gap:22px}nav a{color:var(--muted);text-decoration:none}main{max-width:1100px;margin:auto;padding:42px 24px}h1{margin:0 0 8px;font-size:28px}.subtitle{margin:0 0 28px;color:var(--muted)}.grid{display:grid;grid-template-columns:repeat(4,1fr);gap:15px}.card,.box{background:#fff;border:1px solid var(--line);border-radius:12px;padding:20px}.card small{display:block;color:var(--muted);margin-bottom:10px}.card strong{font-size:27px}.box{margin-top:25px}table{width:100%;border-collapse:collapse}th,td{padding:12px 8px;border-bottom:1px solid var(--line);text-align:left}th{font-size:12px;color:var(--muted);text-transform:uppercase}.right{text-align:right}.button{display:inline-block;background:var(--blue);color:#fff;border:0;border-radius:7px;padding:11px 15px;text-decoration:none;cursor:pointer}input{width:100%;border:1px solid #ccd2df;border-radius:7px;padding:11px;margin:6px 0 15px;font-size:15px}.form{max-width:430px}.alert{padding:13px 15px;background:#fff4df;border-radius:7px;margin:15px 0}.code{white-space:pre-wrap;overflow:auto;background:#111827;color:#edf2ff;border-radius:8px;padding:15px;font:13px monospace}@media(max-width:700px){.grid{grid-template-columns:repeat(2,1fr)}main{padding:28px 16px}}