:root {
  --seat-available-bg: #22c55e;
  --seat-available-border: #16a34a;
  --seat-available-text: #fff;
  --seat-available-hover-bg: #16a34a;

  --seat-occupied-bg: #ef4444;
  --seat-occupied-border: #dc2626;
  --seat-occupied-text: #fff;

  --seat-selected-bg: #3b82f6;
  --seat-selected-border: #2563eb;
  --seat-selected-text: #fff;
  --seat-selected-ring: rgba(59,130,246,0.4);

  --seat-locked-bg: #d1d5db;
  --seat-locked-border: #9ca3af;
  --seat-locked-text: #6b7280;

  --bus-bg: #f8fafc;
  --bus-border: #e2e8f0;
  --bus-body-bg: #ffffff;

  --aisle-color: #f1f5f9;
  --row-number-color: #94a3b8;

  --feedback-info-bg: #dbeafe;
  --feedback-info-text: #1e40af;
  --feedback-warning-bg: #fef9c3;
  --feedback-warning-text: #854d0e;
  --feedback-error-bg: #fee2e2;
  --feedback-error-text: #991b1b;
  --feedback-success-bg: #dcfce7;
  --feedback-success-text: #166534;
}

.seat-map {
  max-width: 480px;
  margin: 0 auto;
  padding: 16px;
  background: var(--bus-body-bg);
  border: 1px solid var(--bus-border);
  border-radius: 16px;
  box-shadow: 0 2px 12px rgba(0,0,0,0.06);
}

.seat-map__header {
  text-align: center;
  margin-bottom: 16px;
}

.seat-map__front {
  background: var(--bus-bg);
  border: 1px solid var(--bus-border);
  border-radius: 50% 50% 0 0 / 30% 30% 0 0;
  padding: 12px 24px 6px;
  margin-bottom: 8px;
}

.seat-map__driver {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  color: var(--row-number-color);
  font-size: 13px;
}

.seat-map__driver-icon {
  font-size: 20px;
}

.seat-map__legend {
  display: flex;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 12px;
  font-size: 12px;
  color: #64748b;
}

.seat-map__legend-item {
  display: flex;
  align-items: center;
  gap: 5px;
}

.seat-map__legend-dot {
  width: 14px;
  height: 14px;
  border-radius: 4px;
}

.seat-map__legend-dot--available { background: var(--seat-available-bg); }
.seat-map__legend-dot--selected  { background: var(--seat-selected-bg); }
.seat-map__legend-dot--occupied  { background: var(--seat-occupied-bg); }

.seat-map__counter {
  text-align: center;
  font-size: 14px;
  font-weight: 500;
  color: #334155;
  margin-bottom: 16px;
  padding: 8px 16px;
  background: #f1f5f9;
  border-radius: 8px;
}

.seat-map__grid {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.seat-map__row {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
}

.seat-map__row--header {
  margin-bottom: 2px;
}

.seat-map__row-number {
  width: 20px;
  text-align: center;
  font-size: 11px;
  color: var(--row-number-color);
  flex-shrink: 0;
}

.seat-map__col-label {
  width: 38px;
  text-align: center;
  font-size: 11px;
  font-weight: 600;
  color: var(--row-number-color);
  letter-spacing: 1px;
}

.seat-map__aisle {
  width: 28px;
  flex-shrink: 0;
}

.seat-map__row--back {
  margin-top: 12px;
  border-top: 2px dashed var(--bus-border);
  padding-top: 12px;
  justify-content: center;
  gap: 12px;
}

.seat-map__back-label {
  font-size: 11px;
  color: var(--row-number-color);
  white-space: nowrap;
}

.seat--back {
  width: 80px !important;
}

.seat {
  width: 38px;
  height: 38px;
  border-radius: 6px 6px 4px 4px;
  border: 2px solid transparent;
  font-size: 9px;
  font-weight: 600;
  cursor: pointer;
  transition: transform 0.1s ease, box-shadow 0.1s ease, background-color 0.15s ease;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  position: relative;
  -webkit-tap-highlight-color: transparent;
  letter-spacing: 0.3px;
}

.seat::before {
  content: '';
  position: absolute;
  top: -5px;
  left: 4px;
  right: 4px;
  height: 5px;
  border-radius: 3px 3px 0 0;
  background: inherit;
  opacity: 0.7;
}

.seat--available {
  background: var(--seat-available-bg);
  border-color: var(--seat-available-border);
  color: var(--seat-available-text);
}

.seat--available:hover:not(:disabled) {
  background: var(--seat-available-hover-bg);
  transform: translateY(-2px);
  box-shadow: 0 4px 8px rgba(34,197,94,0.35);
}

.seat--available:active:not(:disabled) {
  transform: translateY(0);
}

.seat--occupied {
  background: var(--seat-occupied-bg);
  border-color: var(--seat-occupied-border);
  color: var(--seat-occupied-text);
  cursor: not-allowed;
  opacity: 0.7;
}

.seat--selected {
  background: var(--seat-selected-bg);
  border-color: var(--seat-selected-border);
  color: var(--seat-selected-text);
  box-shadow: 0 0 0 3px var(--seat-selected-ring);
  transform: translateY(-2px);
}

.seat--selected:hover {
  background: #2563eb;
  transform: translateY(-3px);
}

.seat--locked {
  background: var(--seat-locked-bg);
  border-color: var(--seat-locked-border);
  color: var(--seat-locked-text);
  cursor: not-allowed;
}

.seat-map__feedback {
  padding: 10px 14px;
  border-radius: 8px;
  font-size: 14px;
  margin-bottom: 12px;
  display: none;
  animation: fadeInDown 0.2s ease;
}

.seat-map__feedback--info    { background: var(--feedback-info-bg);    color: var(--feedback-info-text); }
.seat-map__feedback--warning { background: var(--feedback-warning-bg); color: var(--feedback-warning-text); }
.seat-map__feedback--error   { background: var(--feedback-error-bg);   color: var(--feedback-error-text); }
.seat-map__feedback--success { background: var(--feedback-success-bg); color: var(--feedback-success-text); }

.seat-map__confirm-btn {
  display: block;
  width: 100%;
  margin-top: 20px;
  padding: 14px;
  background: #3b82f6;
  color: #fff;
  border: none;
  border-radius: 10px;
  font-size: 16px;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.2s, transform 0.1s;
}

.seat-map__confirm-btn:hover:not(:disabled) {
  background: #2563eb;
  transform: translateY(-1px);
}

.seat-map__confirm-btn:disabled {
  background: #94a3b8;
  cursor: not-allowed;
  transform: none;
}

.seat-map__confirm-btn--loading {
  opacity: 0.8;
  pointer-events: none;
}

@keyframes fadeInDown {
  from { opacity: 0; transform: translateY(-8px); }
  to   { opacity: 1; transform: translateY(0); }
}

@keyframes pulse-ring {
  0%   { box-shadow: 0 0 0 0 rgba(59,130,246,0.5); }
  70%  { box-shadow: 0 0 0 8px rgba(59,130,246,0); }
  100% { box-shadow: 0 0 0 0 rgba(59,130,246,0); }
}

.seat--selected.seat--just-selected {
  animation: pulse-ring 0.5s ease;
}

.bus-section {
  max-width: 520px;
  margin: 2rem auto;
  padding: 1rem;
}

.bus-step__title {
  font-size: 1.5rem;
  font-weight: 800;
  text-align: center;
  margin-bottom: 0.5rem;
  color: #1e293b;
}

.bus-step__subtitle {
  text-align: center;
  color: #64748b;
  margin-bottom: 1.5rem;
  font-size: 0.95rem;
}

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

.bus-input {
  width: 100%;
  padding: 14px 16px;
  border: 2px solid #e2e8f0;
  border-radius: 12px;
  font-size: 1.1rem;
  font-weight: 600;
  text-align: center;
  transition: border-color 0.2s;
  box-sizing: border-box;
}

.bus-input:focus {
  outline: none;
  border-color: #3b82f6;
  box-shadow: 0 0 0 3px rgba(59,130,246,0.15);
}

.bus-btn {
  padding: 14px 24px;
  border: none;
  border-radius: 12px;
  font-size: 1rem;
  font-weight: 700;
  cursor: pointer;
  transition: background 0.2s, transform 0.1s;
}

.bus-btn--primary {
  background: #3b82f6;
  color: #fff;
}

.bus-btn--primary:hover:not(:disabled) {
  background: #2563eb;
  transform: translateY(-1px);
}

.bus-btn--primary:disabled {
  background: #94a3b8;
  cursor: not-allowed;
}

.bus-btn--secondary {
  background: #e2e8f0;
  color: #475569;
}

.bus-btn--secondary:hover {
  background: #cbd5e1;
}

.bus-btn--danger {
  background: #ef4444;
  color: #fff;
}

.bus-btn--danger:hover {
  background: #dc2626;
}

.bus-btn--sm {
  padding: 8px 14px;
  font-size: 0.82rem;
  border-radius: 8px;
}

.reservation-summary {
  margin-bottom: 1rem;
}

.reservation-summary__content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px 16px;
  background: #f1f5f9;
  border-radius: 12px;
  font-size: 0.95rem;
  color: #334155;
}

.bus-info-banner {
  margin-bottom: 1rem;
}

.bus-info-banner__content {
  padding: 10px 16px;
  background: #dbeafe;
  color: #1e40af;
  border-radius: 10px;
  font-weight: 600;
  font-size: 0.9rem;
  text-align: center;
}

@media (max-width: 400px) {
  .seat {
    width: 32px;
    height: 32px;
    font-size: 8px;
    border-radius: 5px 5px 3px 3px;
  }
  .seat-map__col-label { width: 32px; }
  .seat-map__aisle { width: 20px; }
  .seat-map {
    padding: 10px;
  }
}

@media (max-width: 340px) {
  .seat {
    width: 28px;
    height: 28px;
  }
  .seat-map__col-label { width: 28px; }
}