:root {
  --bg: #090d12;
  --panel: #111822;
  --panel-2: #0f1520;
  --border: #223146;
  --text: #e8eef8;
  --muted: #8aa0b8;
  --accent: #65d6ff;
  --accent-2: #8cffc1;
  --warn: #f59e0b;
  --danger: #ef4444;
}

* { box-sizing: border-box; }
body {
  margin: 0;
  background:
    radial-gradient(circle at top left, rgba(101, 214, 255, 0.14), transparent 28%),
    radial-gradient(circle at top right, rgba(140, 255, 193, 0.12), transparent 24%),
    var(--bg);
  color: var(--text);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
}

.shell {
  max-width: 1180px;
  margin: 0 auto;
  padding: 24px 18px 40px;
}

.hero {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 16px;
  margin-bottom: 16px;
}

.eyebrow {
  margin: 0 0 6px;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.18em;
  font-size: 12px;
}

h1 {
  margin: 0;
  font-size: clamp(2rem, 3vw, 3.2rem);
}

.sub {
  color: var(--muted);
  margin: 8px 0 0;
  line-height: 1.5;
}

.toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
}

button,
.btn {
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.02);
  color: var(--text);
  border-radius: 12px;
  padding: 11px 14px;
  font-size: 14px;
  text-decoration: none;
  cursor: pointer;
}

button.primary {
  background: linear-gradient(135deg, rgba(101, 214, 255, 0.9), rgba(140, 255, 193, 0.86));
  color: #04111b;
  border-color: transparent;
  font-weight: 700;
}

.banner {
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 14px 16px;
  margin-bottom: 18px;
  background: rgba(255, 255, 255, 0.03);
}

.banner.loading { color: var(--muted); }
.banner.ok { border-color: rgba(140, 255, 193, 0.35); }
.banner.error { border-color: rgba(239, 68, 68, 0.5); color: #fecaca; }

.grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.card {
  background: linear-gradient(180deg, rgba(17, 24, 34, 0.96), rgba(11, 16, 25, 0.96));
  border: 1px solid var(--border);
  border-radius: 18px;
  padding: 18px;
  margin-bottom: 16px;
}

.card h2 {
  margin: 0 0 14px;
  font-size: 18px;
}

.kv {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
}

.kv div,
.form-grid label {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: 14px;
  padding: 12px;
}

.kv span,
.form-grid span {
  display: block;
  color: var(--muted);
  font-size: 12px;
  margin-bottom: 6px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.kv strong {
  font-size: 16px;
}

.note,
.form-grid small {
  color: var(--muted);
  display: block;
  margin-top: 10px;
  line-height: 1.4;
}

.form-grid {
  display: grid;
  gap: 14px;
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

label input,
label select,
label textarea {
  width: 100%;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: rgba(5, 8, 13, 0.9);
  color: var(--text);
  padding: 10px 12px;
  font-size: 14px;
}

label textarea {
  resize: vertical;
  min-height: 118px;
}

label.switch {
  display: flex;
  align-items: center;
  gap: 10px;
}

label.switch input {
  width: 18px;
  height: 18px;
  margin: 0;
}

pre {
  background: rgba(5, 8, 13, 0.95);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 14px;
  overflow: auto;
  max-height: 360px;
  font-size: 12px;
}

.hidden { display: none; }

@media (max-width: 900px) {
  .hero,
  .grid,
  .form-grid,
  .kv {
    grid-template-columns: 1fr;
  }

  .hero {
    flex-direction: column;
  }
}