* {
  box-sizing: border-box;
}

:root {
  --bg: #0f172a;
  --panel: #111827;
  --panel-2: #1f2937;
  --line: #334155;
  --text: #e5e7eb;
  --muted: #94a3b8;
  --primary: #38bdf8;
  --primary-dark: #0ea5e9;
}

body {
  margin: 0;
  font-family: Inter, system-ui, sans-serif;
  background: linear-gradient(180deg, #020617, #111827);
  color: var(--text);
  min-height: 100vh;
}

.app-shell {
  max-width: 1080px;
  margin: 0 auto;
  padding: 16px;
}

.topbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
}

.eyebrow {
  color: var(--primary);
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.tabs {
  display: flex;
  gap: 8px;
  margin: 18px 0;
}

.tab,
.primary,
.secondary {
  border: 0;
  border-radius: 14px;
  padding: 12px 16px;
  font-weight: 700;
  cursor: pointer;
}

.tab {
  background: #0b1220;
  color: var(--muted);
  border: 1px solid var(--line);
}

.tab.active {
  color: white;
  border-color: var(--primary);
}

.primary {
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: #00111a;
}

.secondary {
  background: #0b1220;
  color: var(--text);
  border: 1px solid var(--line);
}

.view {
  display: none;
}

.view.active {
  display: block;
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(290px, 1fr));
  gap: 16px;
}

.card,
.panel,
.ticket-card,
.checkout {
  background: rgba(15, 23, 42, 0.88);
  border: 1px solid rgba(148, 163, 184, 0.18);
  border-radius: 24px;
  box-shadow: 0 15px 45px rgba(0, 0, 0, 0.22);
}

.card {
  overflow: hidden;
}

.card img {
  width: 100%;
  height: 180px;
  object-fit: cover;
  display: block;
}

.card-content {
  padding: 16px;
}

.muted {
  color: var(--muted);
}

.panel,
.checkout {
  padding: 16px;
  margin-top: 16px;
}

.panel-header,
.price-row,
.payment-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
}

.stage {
  margin: 14px auto 20px;
  width: 280px;
  text-align: center;
  border-radius: 999px;
  padding: 10px 16px;
  background: linear-gradient(135deg, #7c3aed, #4f46e5);
  font-weight: 800;
  letter-spacing: 0.18em;
}

#seatMap {
  width: 100%;
  min-height: 420px;
  background: rgba(2, 6, 23, 0.55);
  border-radius: 18px;
  border: 1px solid rgba(148, 163, 184, 0.14);
}

.sector-label {
  font-size: 18px;
  fill: white;
  font-weight: 700;
}

.seat {
  cursor: pointer;
  transition: transform 0.15s ease;
}

.seat:hover {
  transform: scale(1.1);
}

.seat.free {
  fill: #38bdf8;
}

.seat.locked,
.seat.sold {
  fill: #475569;
  cursor: not-allowed;
}

.seat.selected {
  fill: #f59e0b;
}

.selected-seats {
  min-height: 24px;
  color: var(--muted);
}

.ticket-card {
  padding: 16px;
  margin-bottom: 12px;
}

.ticket-card a {
  color: var(--primary);
  text-decoration: none;
}

@media (max-width: 700px) {
  .panel-header,
  .price-row,
  .payment-row,
  .topbar {
    flex-direction: column;
    align-items: stretch;
  }
}