/* ============================================
   BOOKING — Calendar, Time Slots, Flow (Light Theme)
   ============================================ */

/* --- Calendar --- */
.calendar {
  max-width: 480px;
  margin: 0 auto var(--space-2xl);
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius);
  overflow: hidden;
  box-shadow: var(--shadow-md);
}

.calendar__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-lg) var(--space-xl);
  background: var(--color-off-white);
  border-bottom: 1px solid var(--color-border);
}

.calendar__title {
  font-size: var(--text-base);
  font-weight: 700;
  color: var(--color-text);
}

.calendar__nav {
  display: flex;
  gap: var(--space-sm);
}

.calendar__nav-btn {
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: 8px;
  color: var(--color-text);
  cursor: pointer;
  transition: all var(--transition-fast);
  font-size: 14px;
}

.calendar__nav-btn:hover {
  background: var(--color-primary);
  color: var(--color-white);
  border-color: var(--color-primary);
}

.calendar__nav-btn:disabled {
  opacity: 0.3;
  cursor: not-allowed;
}

.calendar__weekdays {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  padding: var(--space-md) var(--space-md) 0;
}

.calendar__weekday {
  text-align: center;
  font-size: var(--text-xs);
  font-weight: 700;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: var(--space-sm) 0;
}

.calendar__days {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  padding: var(--space-sm) var(--space-md) var(--space-md);
  gap: 4px;
}

.calendar__day {
  aspect-ratio: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-text);
  border-radius: 10px;
  cursor: pointer;
  transition: all var(--transition-fast);
  border: none;
  background: none;
  position: relative;
}

.calendar__day:hover:not(.disabled):not(.empty):not(.past):not(.sunday) {
  background: rgba(184, 134, 11, 0.10);
  color: var(--color-primary-dark);
}

.calendar__day.today {
  color: var(--color-primary);
  font-weight: 700;
}

.calendar__day.today::after {
  content: '';
  position: absolute;
  bottom: 4px;
  width: 4px;
  height: 4px;
  background: var(--color-primary);
  border-radius: 50%;
}

.calendar__day.selected {
  background: var(--color-primary);
  color: var(--color-white);
  font-weight: 700;
  box-shadow: 0 4px 12px rgba(184, 134, 11, 0.3);
}

.calendar__day.selected::after {
  display: none;
}

.calendar__day.disabled {
  color: var(--color-text-muted);
  opacity: 0.4;
  cursor: not-allowed;
}

.calendar__day.empty {
  cursor: default;
}

.calendar__day.past {
  color: var(--color-text-muted);
  opacity: 0.3;
  cursor: not-allowed;
  text-decoration: line-through;
}

.calendar__day.sunday {
  color: var(--color-text-muted);
  opacity: 0.35;
  cursor: not-allowed;
}

/* --- Time Slots --- */
.slots-section {
  max-width: 480px;
  margin: 0 auto;
}

.slots-header {
  text-align: center;
  margin-bottom: var(--space-xl);
}

.slots-header__date {
  font-size: var(--text-lg);
  font-weight: 700;
  color: var(--color-text);
}

.slots-header__barber {
  font-size: var(--text-sm);
  color: var(--color-primary);
  font-weight: 500;
}

.slots-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-sm);
  margin-bottom: var(--space-2xl);
}

.slot {
  padding: 14px;
  text-align: center;
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-text);
  background: var(--color-white);
  border: 1.5px solid var(--color-border);
  border-radius: var(--border-radius-sm);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.slot:hover {
  border-color: var(--color-primary);
  background: rgba(184, 134, 11, 0.06);
  color: var(--color-primary-dark);
}

.slot.selected {
  background: var(--color-primary);
  color: var(--color-white);
  border-color: var(--color-primary);
  box-shadow: 0 4px 12px rgba(184, 134, 11, 0.25);
}

.slot.unavailable {
  opacity: 0.3;
  cursor: not-allowed;
  text-decoration: line-through;
}

/* --- Barber Selection on Slot Page --- */
.selected-barber {
  display: flex;
  align-items: center;
  gap: var(--space-lg);
  padding: var(--space-lg);
  background: var(--color-off-white);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius);
  margin-bottom: var(--space-2xl);
  max-width: 480px;
  margin-left: auto;
  margin-right: auto;
}

.selected-barber__image {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  object-fit: cover;
  border: 2px solid var(--color-border);
}

.selected-barber__info {
  flex: 1;
}

.selected-barber__name {
  font-size: var(--text-base);
  font-weight: 700;
  color: var(--color-text);
}

.selected-barber__role {
  font-size: var(--text-xs);
  color: var(--color-primary);
  font-weight: 500;
}

.selected-barber__change {
  font-size: var(--text-xs);
  color: var(--color-text-light);
  text-decoration: underline;
  cursor: pointer;
  transition: color var(--transition-fast);
}

.selected-barber__change:hover {
  color: var(--color-primary);
}

/* --- No Slots Message --- */
.no-slots {
  text-align: center;
  padding: var(--space-2xl);
  background: rgba(230, 101, 0, 0.04);
  border: 1px solid rgba(230, 101, 0, 0.15);
  border-radius: var(--border-radius);
  margin-bottom: var(--space-2xl);
}

.no-slots__icon {
  font-size: 32px;
  margin-bottom: var(--space-md);
}

.no-slots__title {
  font-size: var(--text-base);
  font-weight: 600;
  color: var(--color-warning);
  margin-bottom: var(--space-sm);
}

.no-slots__text {
  font-size: var(--text-sm);
  color: var(--color-text-light);
}

/* --- Booking Flow Container --- */
.booking-flow {
  padding-top: calc(80px + var(--space-3xl));
  padding-bottom: var(--space-4xl);
  min-height: 100vh;
  background: var(--color-off-white);
}

.booking-flow__header {
  text-align: center;
  margin-bottom: var(--space-2xl);
}

.booking-flow__title {
  font-size: var(--text-2xl);
  margin-bottom: var(--space-sm);
  color: var(--color-text);
}

.booking-flow__subtitle {
  font-size: var(--text-base);
  color: var(--color-text-light);
}

/* --- Booking Actions --- */
.booking-actions {
  display: flex;
  gap: var(--space-md);
  justify-content: center;
  margin-top: var(--space-2xl);
  flex-wrap: wrap;
}

@media (max-width: 480px) {
  .slots-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .booking-actions {
    flex-direction: column;
  }

  .booking-actions .btn {
    width: 100%;
  }
}