:root {
      --bg-1:#07101f; --bg-2:#101a33; --bg-3:#0c1428; --card:rgba(15,23,42,.78); --card-2:rgba(255,255,255,.03);
      --stroke:rgba(255,255,255,.08); --text:#eef2ff; --muted:#94a3b8; --accent:#5b8cff; --accent-2:#7c3aed;
      --success:#22c55e; --danger:#ff5d7a; --shadow:0 24px 80px rgba(0,0,0,.45);
    }
    *{box-sizing:border-box} html,body{margin:0;padding:0} body{min-height:100vh;font-family:Inter,Segoe UI,Arial,sans-serif;color:var(--text);background:
      radial-gradient(circle at top left, rgba(91,140,255,.28), transparent 28%),
      radial-gradient(circle at bottom right, rgba(124,58,237,.22), transparent 24%),
      linear-gradient(135deg,var(--bg-1),var(--bg-2) 45%,var(--bg-3));display:grid;place-items:center;padding:24px}
    .shell{width:min(1120px,100%);display:grid;grid-template-columns:1.15fr .85fr;background:rgba(5,10,21,.45);border:1px solid var(--stroke);border-radius:28px;overflow:hidden;backdrop-filter:blur(16px);box-shadow:var(--shadow)}
    .hero{padding:56px;display:flex;flex-direction:column;justify-content:center;gap:20px;background:linear-gradient(180deg, rgba(255,255,255,.04), rgba(255,255,255,.015))}
    .badge{display:inline-flex;align-items:center;gap:10px;width:fit-content;padding:10px 14px;border:1px solid var(--stroke);border-radius:999px;background:rgba(255,255,255,.04);color:#d7def4;font-size:13px}
    h1{margin:0;font-size:clamp(32px,5vw,56px);line-height:1.02;letter-spacing:-.03em}
    .hero p{margin:0;color:var(--muted);font-size:16px;line-height:1.75;max-width:54ch}
    .grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px;margin-top:8px}
    .item{padding:16px;border-radius:18px;border:1px solid var(--stroke);background:var(--card-2);font-size:14px;color:#dce6ff}
    .panel{padding:36px;background:var(--card);border-left:1px solid var(--stroke);display:flex;align-items:center;justify-content:center}
    .panel-inner{width:min(100%,390px)}
    .panel h2{margin:0 0 8px;font-size:30px}.sub{margin:0 0 24px;color:var(--muted);font-size:14px}
    .field{margin-bottom:16px}.field label{display:block;margin-bottom:8px;color:#dae3ff;font-size:14px}
    input{width:100%;padding:15px 16px;border-radius:16px;border:1px solid var(--stroke);background:rgba(255,255,255,.04);color:var(--text);outline:none;transition:.2s ease;font-size:15px}
    input:focus{border-color:rgba(91,140,255,.95);box-shadow:0 0 0 5px rgba(91,140,255,.16);transform:translateY(-1px);background:rgba(255,255,255,.06)}
    .msg{display:none;padding:12px 14px;border-radius:14px;font-size:14px;line-height:1.5;border:1px solid transparent;margin-bottom:12px}
    .msg.error{display:block;background:rgba(255,93,122,.12);color:#ffd5dd;border-color:rgba(255,93,122,.24)}
    .msg.success{display:block;background:rgba(34,197,94,.12);color:#d8ffe7;border-color:rgba(34,197,94,.24)}
    .actions{display:grid;gap:12px;margin-top:20px}
    button{width:100%;border:0;border-radius:16px;padding:15px 18px;background:linear-gradient(135deg,var(--accent),var(--accent-2));color:white;font-weight:800;cursor:pointer;display:flex;align-items:center;justify-content:center;gap:10px;box-shadow:0 18px 44px rgba(91,140,255,.22)}
    button:disabled{opacity:.75;cursor:not-allowed}.spinner{width:18px;height:18px;border:2px solid rgba(255,255,255,.35);border-top-color:#fff;border-radius:50%;display:none;animation:spin .8s linear infinite}
    .footer{margin-top:14px;color:var(--muted);font-size:12px;text-align:center}
    @keyframes spin{to{transform:rotate(360deg)}}
    @media (max-width:980px){.shell{grid-template-columns:1fr}.hero{padding:22px 18px 8px;gap:10px}.hero p{font-size:14px;line-height:1.45}.panel{border-left:0;border-top:1px solid var(--stroke);padding:20px 16px}.grid{grid-template-columns:1fr 1fr;gap:10px}.item{padding:12px}}
    @media (max-width:640px){body{padding:8px;place-items:start}.shell{grid-template-columns:1fr;border-radius:18px}.hero{padding:12px 12px 2px;gap:6px}.badge{padding:6px 10px;font-size:11px}.hero h1{font-size:18px;line-height:1.05}.hero p{font-size:12px;line-height:1.3}.grid{display:none}.panel{padding:14px 12px 16px;border-top:0}.panel-inner{max-width:none}.panel h2{font-size:22px}.sub{margin-bottom:14px;font-size:13px}.field{margin-bottom:10px}.field label{margin-bottom:6px;font-size:13px}input,button{padding:12px 13px;border-radius:12px;font-size:14px}.footer{margin-top:8px;font-size:11px}}.shell{border-radius:22px}.hero{padding:22px 18px 8px;gap:14px}.grid{grid-template-columns:1fr}.item{padding:14px}.panel{padding:20px 16px}.panel h2{font-size:26px}input,button{padding:14px 15px;border-radius:14px}}