/* ==========================================================================
   Date Picker Component Styles
   Sections: Date Chips, Calendar Picker, Time Slot Selector, Empty State,
             Skeleton Placeholder, Mobile Overrides
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. Date Chips
   -------------------------------------------------------------------------- */

.date-chips {
    position: relative;
}

.date-chips__track {
    display: flex;
    flex-direction: row;
    overflow-x: auto;
    scroll-behavior: smooth;
    gap: 8px;
    /* Hide scrollbar across browsers */
    scrollbar-width: none; /* Firefox */
    -ms-overflow-style: none; /* IE/Edge */
}

.date-chips__track::-webkit-scrollbar {
    display: none; /* Chrome/Safari */
}

.date-chip {
    flex-shrink: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 8px 14px;
    border: 2px solid #e0e0e0;
    border-radius: 12px;
    background-color: #fff;
    cursor: pointer;
    transition: all 0.2s ease;
    min-width: 72px;
    user-select: none;
    position: relative;
}

.date-chip:hover {
    border-color: var(--primary-color, #3498db);
    background-color: #f0f8ff;
}

.date-chip--selected {
    background-color: var(--primary-color, #3498db);
    border-color: var(--primary-color, #3498db);
    color: #fff;
}

.date-chip--selected:hover {
    background-color: #2980b9;
    border-color: #2980b9;
    color: #fff;
}

.date-chip--selected:active {
    background-color: #2471a3;
    border-color: #2471a3;
    color: #fff;
}

.date-chip--full {
    opacity: 0.5;
    border-style: dashed;
}

.date-chip--disabled {
    opacity: 0.45;
    pointer-events: none;
}

.date-chip__weekday {
    font-size: 0.7rem;
    font-weight: 600;
    text-transform: uppercase;
}

.date-chip__day {
    font-size: 1.1rem;
    font-weight: 700;
}

.date-chip__month {
    font-size: 0.7rem;
    opacity: 0.8;
}

.date-chip__price {
    font-size: 0.65rem;
    opacity: 0.9;
}

.date-chip__badge {
    position: absolute;
    top: -6px;
    left: 50%;
    transform: translateX(-50%);
    font-size: 0.55rem;
    font-weight: 700;
    background-color: #27ae60;
    color: #fff;
    padding: 1px 6px;
    border-radius: 8px;
    white-space: nowrap;
}

.date-chips__arrow {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 28px;
    height: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: #fff;
    border: 1px solid #e0e0e0;
    border-radius: 50%;
    z-index: 2;
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.12);
    font-size: 0.75rem;
    cursor: pointer;
    transition: opacity 0.2s ease;
}

.date-chips__arrow--left {
    left: -4px;
}

.date-chips__arrow--right {
    right: -4px;
}

.date-chips__arrow--hidden {
    opacity: 0;
    pointer-events: none;
}

/* --------------------------------------------------------------------------
   2. Calendar Toggle
   -------------------------------------------------------------------------- */

.date-picker__toggle-calendar {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    font-size: 0.8rem;
    color: var(--primary-color, #3498db);
    cursor: pointer;
    background: none;
    border: none;
    padding: 0;
    margin-top: 8px;
}

/* --------------------------------------------------------------------------
   3. Calendar Picker
   -------------------------------------------------------------------------- */

.calendar-picker {
    overflow: hidden;
    max-height: 0;
    opacity: 0;
    transition: max-height 0.3s ease, opacity 0.3s ease, margin-top 0.3s ease;
}

.calendar-picker--open {
    max-height: 500px;
    opacity: 1;
    margin-top: 12px;
}

.calendar-picker__header {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.calendar-picker__title {
    font-size: 0.9rem;
    font-weight: 600;
}

.calendar-picker__nav {
    width: 28px;
    height: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 6px;
    border: 1px solid #e0e0e0;
    background: none;
    cursor: pointer;
    padding: 0;
    transition: background-color 0.2s ease, border-color 0.2s ease;
}

.calendar-picker__nav:hover {
    background-color: #f0f8ff;
    border-color: var(--primary-color, #3498db);
}

.calendar-picker__grid {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    gap: 2px;
}

.calendar-picker__weekdays {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    gap: 2px;
    margin-top: 8px;
    margin-bottom: 2px;
}

.calendar-picker__weekday-header,
.calendar-picker__weekday {
    font-size: 0.65rem;
    font-weight: 600;
    text-align: center;
    color: #999;
    text-transform: uppercase;
    padding: 4px 0;
}

.calendar-picker__day {
    aspect-ratio: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    border-radius: 8px;
    font-size: 0.8rem;
    border: none;
    background: none;
    padding: 0;
}

.calendar-picker__day--available {
    cursor: pointer;
    font-weight: 600;
}

.calendar-picker__day--available:hover {
    background-color: #f0f8ff;
    color: var(--primary-color, #3498db);
}

.calendar-picker__day--selected {
    background-color: var(--primary-color, #3498db);
    color: #fff;
    font-weight: 700;
}

.calendar-picker__day--selected:hover {
    background-color: #2980b9;
    color: #fff;
}

.calendar-picker__day--empty {
    visibility: hidden;
}

.calendar-picker__day--unavailable {
    color: #ccc;
}

.calendar-picker__day--today {
    outline: 2px solid var(--primary-color, #3498db);
    outline-offset: -2px;
}

.calendar-picker__day--full {
    color: #ccc;
    text-decoration: line-through;
}

.calendar-picker__day-price {
    font-size: 0.5rem;
    opacity: 0.7;
}

/* --------------------------------------------------------------------------
   4. Time Slot Selector
   -------------------------------------------------------------------------- */

.timeslot-selector {
    opacity: 0;
    max-height: 0;
    overflow: hidden;
    transition: opacity 0.25s ease, max-height 0.25s ease, margin-top 0.25s ease;
}

.timeslot-selector--visible {
    opacity: 1;
    max-height: 300px;
    margin-top: 12px;
}

.timeslot-selector__label {
    font-size: 0.8rem;
    font-weight: 600;
    color: #666;
}

.timeslot-selector__grid {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.timeslot-card {
    flex: 1;
    min-width: 100px;
    max-width: 160px;
    padding: 10px 12px;
    border: 2px solid #e0e0e0;
    border-radius: 10px;
    text-align: center;
    background-color: #fff;
    cursor: pointer;
    transition: border-color 0.2s ease, background-color 0.2s ease, box-shadow 0.2s ease;
}

.timeslot-card:hover {
    border-color: var(--primary-color, #3498db);
    background-color: #f0f8ff;
}

.timeslot-card--selected {
    border-color: var(--primary-color, #3498db);
    background-color: #f0f8ff;
    box-shadow: 0 0 0 3px var(--primary-color, #3498db);
}

.timeslot-card--full {
    opacity: 0.45;
    border-style: dashed;
    cursor: default;
}

.timeslot-card__time {
    font-size: 1rem;
    font-weight: 700;
}

.timeslot-card__price {
    font-size: 0.8rem;
    color: #666;
}

.timeslot-card__spots {
    font-size: 0.7rem;
    color: #999;
}

.timeslot-card__spots--low {
    color: #e67e22;
    font-weight: 600;
}

.timeslot-card__bus {
    font-size: 0.65rem;
    color: #999;
}

/* --------------------------------------------------------------------------
   5. Empty State
   -------------------------------------------------------------------------- */

.date-picker__empty {
    text-align: center;
    padding: 16px;
    color: #999;
    font-size: 0.85rem;
}

.date-picker__empty-icon {
    font-size: 2rem;
    opacity: 0.5;
}

/* --------------------------------------------------------------------------
   6. Skeleton Placeholder
   -------------------------------------------------------------------------- */

.date-picker__skeleton {
    display: flex;
    gap: 8px;
}

@keyframes shimmer {
    0% {
        background-position: -200% 0;
    }
    100% {
        background-position: 200% 0;
    }
}

.date-picker__skeleton-chip {
    width: 72px;
    height: 72px;
    border-radius: 12px;
    background: linear-gradient(
        90deg,
        #f0f0f0 25%,
        #e0e0e0 50%,
        #f0f0f0 75%
    );
    background-size: 200% 100%;
    animation: shimmer 1.5s infinite;
    flex-shrink: 0;
}

/* --------------------------------------------------------------------------
   7. Mobile Overrides
   -------------------------------------------------------------------------- */

#mobile-sheet .date-chip {
    min-width: 76px;
    padding: 10px 16px;
    min-height: 44px;
}

#mobile-sheet .timeslot-selector__grid {
    flex-direction: column;
}

#mobile-sheet .timeslot-card {
    max-width: none;
    display: flex;
    flex-direction: row;
    align-items: center;
    padding: 12px 16px;
    min-height: 44px;
    text-align: left;
    gap: 12px;
}