/**
 * WP Travel Engine Calendar Performance Optimizer Styles
 * Optimized loading states and performance enhancements for calendar
 */

/* Calendar Loading State */
.wte-calendar-loading {
    position: relative;
    min-height: 300px;
    background: #f8f9fa;
    border-radius: 8px;
    border: 1px solid #e9ecef;
}

/* Calendar Loader */
.wte-calendar-loader {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    text-align: center;
    z-index: 10;
}

.wte-calendar-spinner {
    width: 40px;
    height: 40px;
    margin: 0 auto 15px;
    border: 3px solid #f3f3f3;
    border-top: 3px solid #11315f;
    border-radius: 50%;
    animation: wte-calendar-spin 1s linear infinite;
}

.wte-calendar-loading-text {
    font-size: 14px;
    color: #6c757d;
    font-weight: 500;
}

/* Calendar Spinner Animation */
@keyframes wte-calendar-spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* Optimized Calendar Container */
.wte-optimized-calendar-input {
    display: none !important;
}

/* Flatpickr Performance Optimizations */
.flatpickr-calendar {
    box-shadow: 0 4px 12px rgb(0 0 0 / 0%) !important;
    border-radius: 8px !important;
    border: 1px solid #e9ecef !important;
    transition: none !important;
}

.flatpickr-calendar.animate {
    animation: none !important;
}

.flatpickr-calendar.open {
    transform: scale(1) !important;
    opacity: 1 !important;
}

/* Calendar Day Performance */
.flatpickr-day {
    transition: none !important;
    border-radius: 4px !important;
}

.flatpickr-day:hover {
    background-color: #f8f9fa !important;
    transform: none !important;
}

.flatpickr-day.selected,
.flatpickr-day.startRange,
.flatpickr-day.endRange {
    background-color: #11315f !important;
    border-color: #11315f !important;
}

/* Calendar Month Navigation */
.flatpickr-months {
    padding: 0px !important;
}

.flatpickr-next-month,
.flatpickr-prev-month {
    padding: 8px !important;
    border-radius: 4px !important;
    transition: background-color 0.2s ease !important;
}

.flatpickr-next-month:hover,
.flatpickr-prev-month:hover {
    background-color: #f8f9fa !important;
}

/* Calendar Weekday Headers */
.flatpickr-weekdaycontainer {
    height: auto !important;
}

.flatpickr-weekday {
    font-weight: 600 !important;
    font-size: 12px !important;
    color: #6c757d !important;
}

/* Calendar Dates Container */
.flatpickr-days {
    padding: 5px !important;
}

.flatpickr-day {
    height: 32px !important;
    line-height: 32px !important;
    font-size: 14px !important;
}

/* Performance Optimizations for Mobile */
@media (max-width: 768px) {
    .wte-calendar-loading {
        min-height: 250px;
    }
    
    .wte-calendar-spinner {
        width: 32px;
        height: 32px;
        border-width: 2px;
    }
    
    .flatpickr-calendar {
        font-size: 14px !important;
    }
    
    .flatpickr-day {
        height: 28px !important;
        line-height: 28px !important;
        font-size: 13px !important;
    }
    
    .flatpickr-months {
        padding: 8px !important;
    }
}

@media (max-width: 480px) {
    .wte-calendar-loading {
        min-height: 200px;
    }
    
    .wte-calendar-loading-text {
        font-size: 13px;
    }
    
    .flatpickr-calendar {
        font-size: 13px !important;
    }
    
    .flatpickr-day {
        height: 26px !important;
        line-height: 26px !important;
        font-size: 12px !important;
    }
}

/* Reduced Motion Support */
@media (prefers-reduced-motion: reduce) {
    .wte-calendar-spinner {
        animation: none;
        border: 3px solid #11315f;
        border-top-color: transparent;
    }
    
    .flatpickr-calendar,
    .flatpickr-day,
    .flatpickr-next-month,
    .flatpickr-prev-month {
        transition: none !important;
    }
}

/* High Contrast Mode Support */
@media (prefers-contrast: high) {
    .wte-calendar-loading {
        border: 2px solid #000;
    }
    
    .wte-calendar-spinner {
        border-width: 4px;
    }
    
    .flatpickr-calendar {
        border: 2px solid #000 !important;
    }
    
    .flatpickr-day.selected,
    .flatpickr-day.startRange,
    .flatpickr-day.endRange {
        background-color: #000 !important;
        border-color: #000 !important;
        color: #fff !important;
    }
}

/* Dark Mode Support */
@media (prefers-color-scheme: dark) {
    .wte-calendar-loading {
        background: #2d3748;
        border-color: #4a5568;
    }
    
    .wte-calendar-loading-text {
        color: #e2e8f0;
    }
    
    .wte-calendar-spinner {
        border-color: #4a5568;
        border-top-color: #e2e8f0;
    }
    
    .flatpickr-calendar {
        background: #2d3748 !important;
        border-color: #4a5568 !important;
        color: #e2e8f0 !important;
    }
    
    .flatpickr-weekday {
        color: #a0aec0 !important;
    }
    
    .flatpickr-day {
        color: #e2e8f0 !important;
    }
    
    .flatpickr-day:hover {
        background-color: #4a5568 !important;
    }
    
    .flatpickr-day.selected,
    .flatpickr-day.startRange,
    .flatpickr-day.endRange {
        background-color: #4299e1 !important;
        border-color: #4299e1 !important;
        color: #fff !important;
    }
}

/* Calendar Container Optimization */
#wte-booking-date-calendar {
    position: relative;
    min-height: 300px;
}

#wte-booking-date-calendar .flatpickr-calendar {
    margin: 0 !important;
    position: relative !important;
    top: auto !important;
    left: auto !important;
    right: auto !important;
    bottom: auto !important;
    width: 100% !important;
    max-width: 100% !important;
    box-shadow: none !important;
    border: none !important;
    background: transparent !important;
}

/* Performance focused styles */
.flatpickr-calendar .flatpickr-months .flatpickr-month {
    height: auto !important;
}

.flatpickr-calendar .numInputWrapper {
    height: auto !important;
}

.flatpickr-calendar .numInputWrapper span {
    height: auto !important;
}

.flatpickr-calendar .numInputWrapper span.arrowUp,
.flatpickr-calendar .numInputWrapper span.arrowDown {
    display: none !important;
}

/* Remove unnecessary transitions for performance */
.flatpickr-calendar * {
    will-change: auto !important;
}

/* Optimize calendar rendering */
.flatpickr-calendar .flatpickr-innerContainer {
    overflow: hidden !important;
}

/* Hide unnecessary elements for performance */
.flatpickr-weekwrapper {
    display: none !important;
}

/* Calendar loading fade effect */
.wte-calendar-loading .flatpickr-calendar {
    opacity: 0.3;
    pointer-events: none;
}

.wte-calendar-loaded .flatpickr-calendar {
    opacity: 1;
    pointer-events: auto;
}

/* Debug styles for development */
.wte-debug .wte-calendar-loading::before {
    content: "Loading calendar...";
    position: absolute;
    top: 10px;
    left: 10px;
    font-size: 12px;
    color: #dc3545;
    background: #fff;
    padding: 2px 6px;
    border-radius: 3px;
    z-index: 1000;
}

.wte-debug .wte-calendar-loaded::before {
    content: "Calendar loaded";
    color: #28a745;
}