:root{--bg:#f6f8fb;--card:#fff;--text:#162033;--muted:#687386;--blue:#155eef;--line:#dbe3ef;--danger:#c0392b;--ok:#0f8a4b}*{box-sizing:border-box}body{margin:0;font-family:Arial,Helvetica,sans-serif;background:var(--bg);color:var(--text)}a{text-decoration:none;color:var(--blue)}.wrap{max-width:1120px;margin:auto;padding:20px}.center{max-width:540px;margin:50px auto}.card{background:var(--card);border:1px solid var(--line);border-radius:16px;padding:22px;box-shadow:0 8px 30px rgba(20,40,80,.06);margin-bottom:18px}.nav{background:#fff;border-bottom:1px solid var(--line);padding:14px 20px}.nav .wrap{display:flex;gap:14px;align-items:center;justify-content:space-between;padding:0}.brand{font-weight:800}.menu{display:flex;gap:12px;flex-wrap:wrap}.btn,button{background:var(--blue);color:#fff;border:0;border-radius:10px;padding:11px 15px;cursor:pointer;font-weight:700}.btn.secondary{background:#eaf0ff;color:#155eef}.btn.danger{background:var(--danger)}input,textarea,select{width:100%;padding:12px;border:1px solid var(--line);border-radius:10px;margin:7px 0 14px;background:#fff}textarea{min-height:130px}.grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}.msg{padding:12px;border-radius:10px;margin:12px 0}.error{background:#ffecec;color:#9b1c1c}.success{background:#eafff2;color:#0f6d3d}.muted{color:var(--muted)}table{width:100%;border-collapse:collapse}td,th{padding:11px;border-bottom:1px solid var(--line);text-align:left}@media(max-width:720px){.grid{grid-template-columns:1fr}.menu{font-size:14px}.wrap{padding:14px}.center{margin:20px auto}.card{padding:16px}}