:root {
  --bg: #0b1220;
  --surface: #111a2b;
  --surface-2: #162136;
  --panel: rgba(255,255,255,0.06);
  --text: #eaf1ff;
  --muted: #9fb0d3;
  --line: rgba(255,255,255,0.10);
  --brand: #6ea8fe;
  --brand-2: #9f7aea;
  --success: #28c76f;
  --warning: #ffb020;
  --danger: #ff5d73;
  --shadow: 0 16px 50px rgba(0,0,0,0.25);
  --radius: 18px;
  --radius-sm: 12px;
  --max: 1200px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: Inter, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background:
    radial-gradient(circle at top left, rgba(110,168,254,0.18), transparent 25%),
    radial-gradient(circle at top right, rgba(159,122,234,0.18), transparent 22%),
    linear-gradient(180deg, #07111e 0%, #0a1322 100%);
  color: var(--text);
  min-height: 100vh;
}

a { color: inherit; text-decoration: none; }
button, input, select {
  font: inherit;
}
button {
  cursor: pointer;
  border: 0;
}
img { max-width: 100%; display: block; }

.container {
  width: min(100% - 2rem, var(--max));
  margin: 0 auto;
}

.page-shell {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  backdrop-filter: blur(12px);
  background: rgba(7, 17, 30, 0.75);
  border-bottom: 1px solid var(--line);
}

.site-header .inner,
.site-footer .inner {
  width: min(100% - 2rem, var(--max));
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1rem 0;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.8rem;
  font-weight: 800;
  letter-spacing: 0.02em;
}

.brand-badge {
  width: 42px;
  height: 42px;
  border-radius: 14px;
  background: linear-gradient(135deg, var(--brand), var(--brand-2));
  box-shadow: var(--shadow);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  flex-wrap: wrap;
}

.nav-link,
.ghost-btn,
.primary-btn,
.secondary-btn,
.danger-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  min-height: 44px;
  padding: 0.8rem 1rem;
  border-radius: 999px;
  transition: transform 0.15s ease, opacity 0.2s ease, background 0.2s ease;
}

.nav-link,
.ghost-btn,
.secondary-btn {
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.08);
  color: var(--text);
}

.primary-btn {
  background: linear-gradient(135deg, var(--brand), var(--brand-2));
  color: white;
  box-shadow: var(--shadow);
}

.danger-btn {
  background: rgba(255, 93, 115, 0.18);
  color: #ffd6dc;
  border: 1px solid rgba(255, 93, 115, 0.25);
}

.nav-link:hover,
.ghost-btn:hover,
.primary-btn:hover,
.secondary-btn:hover,
.danger-btn:hover {
  transform: translateY(-1px);
}

.main {
  flex: 1;
  padding: 2rem 0 3rem;
}

.hero {
  display: grid;
  grid-template-columns: 1.25fr 0.75fr;
  gap: 1.5rem;
  align-items: stretch;
  margin-bottom: 2rem;
}

.panel,
.card,
.metric,
.list-item,
.form-card {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.hero-copy,
.hero-side,
.section,
.form-card,
.card,
.metric,
.list-item,
.empty-state,
.message-box {
  padding: 1.4rem;
}

.hero-title {
  margin: 0 0 0.8rem;
  font-size: clamp(2.2rem, 4vw, 4rem);
  line-height: 1.02;
}

.hero-subtitle,
.section-subtitle,
.muted,
.meta,
.helper-text {
  color: var(--muted);
  line-height: 1.65;
}

.cta-row,
.inline-actions,
.filter-row,
.summary-grid,
.metrics-grid,
.grid,
.button-row,
.legend {
  display: flex;
  gap: 0.8rem;
  flex-wrap: wrap;
}

.section {
  margin-bottom: 1.25rem;
}

.section-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1rem;
}

.section-title {
  margin: 0;
  font-size: 1.4rem;
}

.grid-2 { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1rem; }
.grid-3 { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 1rem; }
.grid-4 { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 1rem; }

.card-title,
.list-title {
  margin: 0 0 0.5rem;
  font-size: 1.1rem;
}

.card-body > *:last-child,
.form-card > *:last-child,
.list-item > *:last-child,
.message-box > *:last-child {
  margin-bottom: 0;
}

.meta-stack {
  display: grid;
  gap: 0.4rem;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.35rem 0.7rem;
  border-radius: 999px;
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.08);
  color: var(--muted);
  font-size: 0.9rem;
}

.badge.success { color: #c7f7dc; background: rgba(40,199,111,0.16); border-color: rgba(40,199,111,0.25); }
.badge.warning { color: #ffe4b0; background: rgba(255,176,32,0.14); border-color: rgba(255,176,32,0.22); }
.badge.danger { color: #ffd6dc; background: rgba(255,93,115,0.16); border-color: rgba(255,93,115,0.25); }
.badge.brand { color: #dbe8ff; background: rgba(110,168,254,0.18); border-color: rgba(110,168,254,0.25); }

.filters,
.form-grid,
.content-layout,
.checkout-layout {
  display: grid;
  gap: 1rem;
}

.content-layout {
  grid-template-columns: minmax(0, 1fr) 320px;
  align-items: start;
}

.checkout-layout {
  grid-template-columns: minmax(0, 1fr) 360px;
  align-items: start;
}

.sidebar-sticky {
  position: sticky;
  top: 90px;
}

label {
  display: block;
  margin-bottom: 0.45rem;
  font-weight: 600;
}

.input,
.select,
textarea {
  width: 100%;
  min-height: 46px;
  padding: 0.8rem 0.95rem;
  border-radius: 14px;
  border: 1px solid rgba(255,255,255,0.1);
  background: rgba(255,255,255,0.04);
  color: var(--text);
}

.input::placeholder { color: #8ea3cb; }

.summary-list,
.clean-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 0.8rem;
}

.summary-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding-bottom: 0.8rem;
  border-bottom: 1px solid rgba(255,255,255,0.08);
}

.summary-item:last-child { border-bottom: 0; padding-bottom: 0; }

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

.metric-value {
  font-size: 1.6rem;
  font-weight: 800;
}

.event-grid,
.locations-grid,
.ticket-grid,
.state-grid {
  display: grid;
  gap: 1rem;
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.empty-state,
.message-box {
  text-align: left;
}

.message-box.info { border-color: rgba(110,168,254,0.25); }
.message-box.success { border-color: rgba(40,199,111,0.3); }
.message-box.warning { border-color: rgba(255,176,32,0.3); }
.message-box.danger { border-color: rgba(255,93,115,0.3); }

.stepper {
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  gap: 0.6rem;
  margin-bottom: 1rem;
}

.step {
  padding: 0.9rem;
  border-radius: 16px;
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.06);
  color: var(--muted);
  text-align: center;
  font-size: 0.92rem;
}

.step.active {
  background: rgba(110,168,254,0.16);
  color: var(--text);
  border-color: rgba(110,168,254,0.25);
}

.seat-layout {
  display: grid;
  gap: 1rem;
}

.stage {
  padding: 0.8rem 1rem;
  text-align: center;
  background: rgba(255,255,255,0.05);
  border: 1px dashed rgba(255,255,255,0.12);
  border-radius: 999px;
  color: var(--muted);
}

.seat-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(72px, 1fr));
  gap: 0.65rem;
}

.seat {
  min-height: 58px;
  padding: 0.55rem 0.4rem;
  border-radius: 16px;
  border: 1px solid transparent;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  font-size: 0.88rem;
  line-height: 1.2;
  transition: transform 0.12s ease, background 0.15s ease;
}

.seat.available {
  background: rgba(255,255,255,0.06);
  color: var(--text);
  border-color: rgba(255,255,255,0.08);
}
.seat.available:hover { transform: translateY(-1px); }
.seat.selected {
  background: rgba(110,168,254,0.18);
  border-color: rgba(110,168,254,0.35);
  color: white;
}
.seat.booked {
  background: rgba(255,93,115,0.16);
  border-color: rgba(255,93,115,0.28);
  color: #ffd6dc;
  cursor: not-allowed;
}
.seat.locked {
  background: rgba(255,176,32,0.16);
  border-color: rgba(255,176,32,0.28);
  color: #ffe4b0;
  cursor: not-allowed;
}

.site-footer {
  border-top: 1px solid var(--line);
  background: rgba(5, 10, 18, 0.75);
}

.hidden { display: none !important; }
.text-right { text-align: right; }
.mt-0 { margin-top: 0; }
.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }
.mb-0 { margin-bottom: 0; }
.mb-1 { margin-bottom: 0.5rem; }
.mb-2 { margin-bottom: 1rem; }
.mb-3 { margin-bottom: 1.5rem; }

.loader {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  border: 4px solid rgba(255,255,255,0.1);
  border-top-color: var(--brand);
  animation: spin 1s linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}