:root{--bg:#07131c;--panel:#0c1e2a;--line:#18394a;--text:#edf8fb;--muted:#89a7b7;--accent:#22d3d6;--danger:#ff566f}*{box-sizing:border-box}body{margin:0;font-family:Arial,sans-serif;background:var(--bg);color:var(--text)}a{color:var(--accent)}main{max-width:1180px;margin:0 auto;padding:28px}.center{max-width:560px;margin:8vh auto;background:var(--panel);border:1px solid var(--line);border-radius:16px;padding:28px}.top{display:flex;justify-content:space-between;align-items:center;gap:16px;margin-bottom:24px}.brand{font-weight:800;font-size:20px}.nav{display:flex;gap:8px;flex-wrap:wrap}.nav a,.btn{background:#103040;border:1px solid #20566d;color:#fff;padding:10px 14px;border-radius:10px;text-decoration:none;cursor:pointer}.btn.primary{background:#0ea5a8}.btn.danger{background:#3a1520}.btn.small{padding:6px 9px;font-size:12px}.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:14px}.card{background:var(--panel);border:1px solid var(--line);border-radius:14px;padding:18px}.metric{font-size:30px;font-weight:800}.muted{color:var(--muted)}label{display:block;margin:12px 0 5px}input,select{width:100%;padding:11px;border-radius:9px;border:1px solid #2a5365;background:#081923;color:#fff}.ok,.error,.warn{padding:12px;border-radius:10px;margin:12px 0}.ok{background:#0c332e}.error{background:#3a1420}.warn{background:#3a2b0c}table{width:100%;border-collapse:collapse;background:var(--panel)}th,td{padding:10px;border-bottom:1px solid var(--line);text-align:left;font-size:14px}.actions{display:flex;gap:6px;flex-wrap:wrap}