:root {
  --bg: #0b1220;
  --nav-bg: #131b2e;
  --card-bg: #1a2236;
  --card-bg-alt: #161d2e;
  --border-subtle: #2a3448;
  --text-primary: #f1f5f9;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  --accent-blue: #3b82f6;
  --accent-blue-dark: #2563eb;
  --green: #22c55e;
  --green-soft: rgba(34, 197, 94, 0.12);
  --red: #ef4444;
  --red-soft: rgba(239, 68, 68, 0.12);
  --amber: #f59e0b;
  --amber-soft: rgba(245, 158, 11, 0.12);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text-primary);
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
}

a {
  color: inherit;
  text-decoration: none;
}

/* --- Nav --- */

.navbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 28px;
  background: var(--nav-bg);
  border-bottom: 1px solid var(--border-subtle);
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 18px;
  font-weight: 700;
}

.nav-brand img {
  height: 32px;
  width: auto;
  max-width: 200px;
  flex-shrink: 0;
  object-fit: contain;
  box-sizing: content-box;
  background: #fff;
  padding: 6px 10px;
  border-radius: 10px;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 6px;
}

.nav-link {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 16px;
  border-radius: 10px;
  color: var(--text-secondary);
  font-weight: 600;
  font-size: 15px;
}

.nav-link:hover {
  color: var(--text-primary);
}

.nav-link.active {
  background: var(--accent-blue);
  color: #fff;
}

/* --- Page header --- */

main {
  max-width: 1200px;
  margin: 0 auto;
  padding: 40px 24px 64px;
}

.page-header {
  text-align: center;
  margin-bottom: 36px;
}

.page-header h1 {
  font-size: 40px;
  margin: 0 0 8px;
}

.page-header .subtitle {
  color: var(--text-secondary);
  margin: 0;
  font-size: 16px;
}

/* --- Stations grid --- */

.stations-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  margin-bottom: 32px;
}

@media (max-width: 900px) {
  .stations-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

.station-card {
  background: var(--card-bg);
  border: 2px solid var(--border-subtle);
  border-radius: 16px;
  padding: 28px 16px;
  text-align: center;
}

.station-card.available {
  border-color: var(--green);
}

.station-card.occupied {
  border-color: var(--red);
}

.station-card.break {
  border-color: var(--amber);
}

.station-card .station-label {
  color: var(--text-secondary);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.station-card .station-number {
  font-size: 32px;
  font-weight: 800;
  margin: 4px 0 14px;
}

.status-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-weight: 700;
  font-size: 15px;
}

.status-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  box-shadow: 0 0 8px currentColor;
  animation: status-dot-pulse 2.2s ease-in-out infinite;
}

@keyframes status-dot-pulse {
  0%,
  100% {
    opacity: 1;
    box-shadow: 0 0 6px currentColor;
  }
  50% {
    opacity: 0.6;
    box-shadow: 0 0 14px currentColor;
  }
}

.available .status-pill,
.available .status-dot {
  color: var(--green);
  background-color: var(--green);
}
.available .status-pill {
  background: none;
}

.occupied .status-pill,
.occupied .status-dot {
  color: var(--red);
  background-color: var(--red);
}
.occupied .status-pill {
  background: none;
}

.break .status-pill,
.break .status-dot {
  color: var(--amber);
  background-color: var(--amber);
}
.break .status-pill {
  background: none;
}

.time-elapsed {
  margin-top: 16px;
  font-variant-numeric: tabular-nums;
  font-size: 20px;
  color: var(--text-secondary);
  letter-spacing: 0.05em;
}

.time-label {
  margin-top: 2px;
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  text-transform: uppercase;
}

/* Station tiles are tappable on both the Display Board and Attendant pages */
.stations-grid .station-card {
  cursor: pointer;
  transition: transform 0.1s ease;
}
.stations-grid .station-card:active {
  transform: scale(0.97);
}

/* --- Summary bar --- */

.summary-bar {
  display: flex;
  justify-content: space-around;
  background: var(--card-bg-alt);
  border: 1px solid var(--border-subtle);
  border-radius: 16px;
  padding: 24px;
  margin-bottom: 28px;
}

.summary-item {
  text-align: center;
}

.summary-value {
  font-size: 32px;
  font-weight: 800;
}

.summary-value.green {
  color: var(--green);
}
.summary-value.red {
  color: var(--red);
}
.summary-value.amber {
  color: var(--amber);
}

.summary-label {
  margin-top: 4px;
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--text-secondary);
  text-transform: uppercase;
}

.page-actions {
  display: flex;
  justify-content: center;
}

/* --- Buttons --- */

.btn {
  font-family: inherit;
  font-size: 15px;
  font-weight: 700;
  border-radius: 10px;
  padding: 12px 22px;
  border: 1px solid transparent;
  cursor: pointer;
}

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

.btn-outline-green {
  background: transparent;
  border-color: var(--green);
  color: var(--green);
}
.btn-outline-green:hover {
  background: var(--green-soft);
}

.btn-danger {
  background: var(--red);
  color: #fff;
}

.btn-secondary {
  background: var(--card-bg-alt);
  border-color: var(--border-subtle);
  color: var(--text-primary);
}

.btn-link-muted {
  background: none;
  border: none;
  color: var(--text-secondary);
  font-weight: 600;
  padding: 8px;
}
.btn-link-muted:hover {
  color: var(--text-primary);
}

.btn-block {
  display: block;
  width: 100%;
  margin-top: 10px;
}

.btn-small {
  padding: 8px 14px;
  font-size: 13px;
}

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

/* --- Cards / forms --- */

.card {
  background: var(--card-bg);
  border: 1px solid var(--border-subtle);
  border-radius: 16px;
  padding: 24px;
}

.card h3 {
  margin-top: 0;
  font-size: 13px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-secondary);
}

.add-guest-card {
  max-width: 900px;
  margin: 0 auto 32px;
}

.form-row {
  display: flex;
  gap: 16px;
  align-items: flex-end;
  flex-wrap: wrap;
}

.form-field {
  flex: 1;
  min-width: 180px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.form-field label {
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-secondary);
  font-weight: 700;
}

input[type='text'],
input[type='password'],
input[type='tel'],
textarea {
  background: var(--card-bg-alt);
  border: 1px solid var(--border-subtle);
  border-radius: 10px;
  padding: 12px 14px;
  color: var(--text-primary);
  font-size: 15px;
  font-family: inherit;
}

input::placeholder,
textarea::placeholder {
  color: var(--text-muted);
}

textarea {
  width: 100%;
  min-height: 110px;
  resize: vertical;
}

/* --- Empty state --- */

.empty-state {
  text-align: center;
  padding: 60px 20px;
  color: var(--text-secondary);
}

.empty-state .empty-icon {
  font-size: 40px;
  margin-bottom: 12px;
  display: block;
}

/* --- Waitlist rows --- */

.waitlist-list {
  max-width: 900px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.waitlist-row {
  background: var(--card-bg);
  border: 1px solid var(--border-subtle);
  border-radius: 14px;
  padding: 16px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}

.waitlist-row .guest-name {
  font-weight: 700;
  font-size: 16px;
}

.waitlist-row .guest-phone {
  color: var(--text-secondary);
  font-size: 14px;
}

.waitlist-row .guest-meta {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.waitlist-row .sms-sent-tag {
  font-size: 12px;
  color: var(--green);
  font-weight: 600;
}

.waitlist-row .row-actions {
  display: flex;
  gap: 10px;
}

/* --- Modal --- */

.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(2, 6, 15, 0.65);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 50;
}

.modal-overlay.hidden {
  display: none;
}

.modal {
  background: var(--card-bg);
  border: 1px solid var(--border-subtle);
  border-radius: 16px;
  padding: 28px;
  width: min(360px, 90vw);
  text-align: center;
}

.modal h2 {
  margin-top: 0;
}

/* --- Toast --- */

#toast-container {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  gap: 8px;
  z-index: 100;
}

.toast {
  background: var(--card-bg-alt);
  border: 1px solid var(--border-subtle);
  color: var(--text-primary);
  padding: 12px 20px;
  border-radius: 10px;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.4);
  opacity: 1;
  transition: opacity 0.4s ease;
  max-width: 80vw;
}

.toast-out {
  opacity: 0;
}

/* --- Admin --- */

.login-card {
  max-width: 380px;
  margin: 80px auto 0;
  text-align: center;
}

.login-card form {
  display: flex;
  flex-direction: column;
  gap: 14px;
  margin-top: 16px;
}

.error-text {
  color: var(--red);
  font-size: 14px;
}

.hidden {
  display: none !important;
}

.admin-topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 24px;
}

.admin-topbar h1 {
  margin: 0;
}

.admin-topbar-actions {
  display: flex;
  gap: 10px;
}

.admin-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

@media (max-width: 900px) {
  .admin-grid {
    grid-template-columns: 1fr;
  }
}

.admin-grid .card {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.admin-waitlist-card {
  grid-column: 1 / -1;
}

.admin-station-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--card-bg-alt);
  border: 1px solid var(--border-subtle);
  border-radius: 10px;
  padding: 10px 14px;
}

.admin-station-row .station-status-tag {
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  margin-left: 10px;
}

.station-status-tag.available {
  color: var(--green);
}
.station-status-tag.occupied {
  color: var(--red);
}
.station-status-tag.break {
  color: var(--amber);
}

.template-editor {
  border: 1px solid var(--border-subtle);
  border-radius: 10px;
  background: var(--card-bg-alt);
  overflow: hidden;
}

.merge-field-chips {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  padding: 10px 10px 8px;
}

.merge-field-chip {
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 12px;
  font-weight: 600;
  background: var(--card-bg);
  border: 1px solid var(--border-subtle);
  color: var(--text-secondary);
  padding: 4px 10px;
  border-radius: 999px;
  cursor: pointer;
}

.merge-field-chip:hover {
  color: #fff;
  background: var(--accent-blue);
  border-color: var(--accent-blue);
}

.template-editor textarea {
  display: block;
  width: 100%;
  border: none;
  border-radius: 0;
  border-top: 1px solid var(--border-subtle);
  background: transparent;
}

.template-editor textarea:focus {
  outline: none;
}

.preview-box {
  background: var(--card-bg-alt);
  border: 1px solid var(--border-subtle);
  border-radius: 10px;
  padding: 14px;
}

.preview-box h4 {
  margin: 0 0 8px;
  font-size: 12px;
  text-transform: uppercase;
  color: var(--text-secondary);
}

.preview-box p {
  margin: 0;
}