:root {
  --bg: #0b1020;
  --card: #121a33;
  --text: #e7ecff;
  --muted: #aab4df;
  --accent: #6aa6ff;
  --danger: #ff6a6a;
  --warn: #ffcf6a;
  --border: rgba(255,255,255,.08);
}

* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
  background: radial-gradient(1200px 600px at 20% 0%, #121a33 0%, var(--bg) 50%) fixed;
  color: var(--text);
}

.container { max-width: 980px; margin: 0 auto; padding: 20px; }
.topbar { border-bottom: 1px solid var(--border); background: rgba(0,0,0,.15); backdrop-filter: blur(8px); }
.topbar__inner { display: flex; align-items: center; justify-content: space-between; }
.brand { color: var(--text); text-decoration: none; font-weight: 700; }
.nav a { color: var(--muted); text-decoration: none; margin-left: 14px; }
.nav a:hover { color: var(--text); }

.card {
  background: linear-gradient(180deg, rgba(255,255,255,.06), rgba(255,255,255,.02));
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 16px;
  margin: 14px 0;
}

.btn {
  display: inline-block;
  padding: 10px 14px;
  border-radius: 12px;
  border: 1px solid rgba(106,166,255,.35);
  background: rgba(106,166,255,.14);
  color: var(--text);
  text-decoration: none;
  cursor: pointer;
}
.btn:hover { background: rgba(106,166,255,.22); }

.muted { color: var(--muted); }
.table { width: 100%; border-collapse: collapse; }
.table th, .table td { text-align: left; border-bottom: 1px solid var(--border); padding: 10px 8px; }

label { display: block; margin: 10px 0; }
input[type="text"], input[type="password"], input[type="number"], select {
  width: 100%;
  padding: 10px 12px;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: rgba(0,0,0,.2);
  color: var(--text);
}

.form-row { display: grid; grid-template-columns: 1fr 220px 140px; gap: 12px; align-items: end; }
.choices { display: grid; gap: 10px; }
.choice {
  display: grid;
  grid-template-columns: 22px 28px 1fr;
  gap: 8px;
  align-items: start;
  padding: 10px;
  border: 1px solid var(--border);
  border-radius: 12px;
}
.choice__label { color: var(--muted); font-weight: 700; }

.messages { margin: 12px 0; }
.message { padding: 10px 12px; border-radius: 12px; border: 1px solid var(--border); margin: 8px 0; }
.message--error { border-color: rgba(255,106,106,.35); background: rgba(255,106,106,.12); }
.message--warn { border-color: rgba(255,207,106,.35); background: rgba(255,207,106,.12); }
.message--success { border-color: rgba(106,255,168,.35); background: rgba(106,255,168,.12); }

@media (max-width: 820px) {
  .form-row { grid-template-columns: 1fr; }
}