:root {
  --bg: #0f1419;
  --surface: #1a2332;
  --border: #2d3a4f;
  --text: #e8eef7;
  --muted: #8fa3bf;
  --accent: #3b82f6;
  --accent-hover: #2563eb;
  --danger: #ef4444;
  --ok: #22c55e;
  --radius: 12px;
  font-family: "Segoe UI", system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", sans-serif;
}

* {
  box-sizing: border-box;
}

body.page {
  margin: 0;
  min-height: 100vh;
  background: radial-gradient(1200px 600px at 20% -10%, #1e3a5f 0%, transparent 55%),
    radial-gradient(900px 500px at 100% 20%, #312e81 0%, transparent 50%), var(--bg);
  color: var(--text);
  line-height: 1.5;
}

h1 {
  margin: 0 0 0.5rem;
  font-size: 1.35rem;
  font-weight: 600;
}

h2 {
  margin: 0 0 1rem;
  font-size: 1.1rem;
  font-weight: 600;
}

.muted {
  color: var(--muted);
  font-size: 0.9rem;
  margin: 0 0 1rem;
}

.card {
  max-width: 720px;
  margin: 2rem auto;
  padding: 1.5rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.35);
}

.card--narrow {
  max-width: 420px;
}

.stack {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  align-items: center;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.55rem 1rem;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: transparent;
  color: var(--text);
  text-decoration: none;
  cursor: pointer;
  font-size: 0.95rem;
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.btn--primary {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}

.btn--primary:hover:not(:disabled) {
  background: var(--accent-hover);
  border-color: var(--accent-hover);
}

.btn--ghost:hover {
  border-color: var(--muted);
}

.btn--sm {
  padding: 0.28rem 0.55rem;
  font-size: 0.8rem;
}

.btn--danger {
  border-color: rgba(239, 68, 68, 0.45);
  color: #fecaca;
}

.btn--danger:hover:not(:disabled) {
  background: rgba(239, 68, 68, 0.12);
  border-color: rgba(239, 68, 68, 0.65);
}

.field {
  margin-bottom: 1rem;
}

.field label {
  display: block;
  margin-bottom: 0.35rem;
  font-size: 0.85rem;
  color: var(--muted);
}

input[type="text"],
input[type="password"],
select {
  width: 100%;
  padding: 0.55rem 0.65rem;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: #121a26;
  color: var(--text);
  font-size: 1rem;
}

input:focus,
select:focus {
  outline: 2px solid rgba(59, 130, 246, 0.45);
  outline-offset: 1px;
}

.brand-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
  gap: 0.45rem;
  max-height: 220px;
  overflow: auto;
  padding: 0.25rem;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: #121a26;
}

.brand-item {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.82rem;
  padding: 0.2rem 0.35rem;
  border-radius: 6px;
}

.brand-item input {
  width: auto;
}

.hint {
  font-size: 0.8rem;
  color: var(--muted);
  margin-top: 0.35rem;
}

.error {
  color: #fecaca;
  font-size: 0.9rem;
  margin: 0.5rem 0 0;
}

.success-banner {
  padding: 1rem;
  border-radius: var(--radius);
  border: 1px solid rgba(34, 197, 94, 0.35);
  background: rgba(34, 197, 94, 0.08);
  margin-bottom: 1rem;
}

.qr-wrap {
  text-align: center;
  margin: 1rem 0;
}

.qr-wrap img {
  max-width: 100%;
  height: auto;
  border-radius: 8px;
  background: #fff;
  padding: 8px;
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.85rem;
}

th,
td {
  border-bottom: 1px solid var(--border);
  padding: 0.5rem 0.35rem;
  text-align: left;
  vertical-align: top;
}

th {
  color: var(--muted);
  font-weight: 500;
}

.mono {
  font-family: ui-monospace, monospace;
  font-size: 0.75rem;
  word-break: break-all;
}

.toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  align-items: center;
  margin-bottom: 1rem;
}

.badge {
  display: inline-block;
  padding: 0.15rem 0.5rem;
  border-radius: 999px;
  background: rgba(59, 130, 246, 0.2);
  color: #bfdbfe;
  font-size: 0.8rem;
}

.country-combo {
  position: relative;
}

.country-combo__panel {
  position: absolute;
  left: 0;
  right: 0;
  z-index: 30;
  max-height: 260px;
  overflow-y: auto;
  margin: 4px 0 0;
  padding: 0;
  list-style: none;
  background: #121a26;
  border: 1px solid var(--border);
  border-radius: 8px;
  box-shadow: 0 10px 28px rgba(0, 0, 0, 0.45);
}

.country-combo__item {
  padding: 0.5rem 0.65rem;
  cursor: pointer;
  font-size: 0.88rem;
  border-bottom: 1px solid var(--border);
}

.country-combo__item:last-child {
  border-bottom: 0;
}

.country-combo__item:hover,
.country-combo__item.is-active {
  background: rgba(59, 130, 246, 0.18);
}

.country-combo__zh {
  display: block;
  font-weight: 500;
}

.country-combo__en {
  display: block;
  margin-top: 0.15rem;
  font-size: 0.78rem;
  color: var(--muted);
}

.country-combo__code {
  display: block;
  margin-top: 0.2rem;
  font-size: 0.72rem;
  color: #6b7c99;
  font-family: ui-monospace, monospace;
}

.admin-stats-summary {
  margin: 0 0 1rem;
  padding: 0.65rem 0.85rem;
  border-radius: 8px;
  border: 1px solid rgba(59, 130, 246, 0.35);
  background: rgba(59, 130, 246, 0.08);
  color: var(--text);
}

.admin-stats-card {
  margin-bottom: 1.5rem;
  padding: 1rem 1rem 0.75rem;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: rgba(0, 0, 0, 0.12);
}

.admin-stats-scroll {
  overflow-x: auto;
  margin-top: 0.75rem;
}

.admin-game-stats {
  margin-bottom: 1.5rem;
}

.admin-game-stats__title {
  margin: 0 0 0.5rem;
  font-size: 1.05rem;
  font-weight: 600;
}

.admin-game-stats__table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.85rem;
}

.admin-game-stats__table th,
.admin-game-stats__table td {
  border-bottom: 1px solid var(--border);
  padding: 0.45rem 0.35rem;
  text-align: left;
}

.game-stats {
  margin: 1rem 0;
  padding: 1rem;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: rgba(0, 0, 0, 0.15);
}

.game-stats__title {
  margin: 0 0 0.65rem;
  font-size: 1rem;
  font-weight: 600;
}

.game-stats__list {
  margin: 0;
  padding-left: 1.1rem;
  color: var(--text);
  font-size: 0.9rem;
}

.game-stats__list li {
  margin-bottom: 0.45rem;
}

code {
  font-size: 0.82em;
  padding: 0.1em 0.35em;
  border-radius: 4px;
  background: #121a26;
  border: 1px solid var(--border);
}

@media (max-width: 640px) {
  .card {
    margin: 1rem;
    padding: 1rem;
  }
}