/**
 * Modal styles for RMK Contest plugin
 * Dedicated stylesheet for large-image modal functionality
 * Improved mobile viewport handling, responsiveness, and accessibility
 */

.cky-btn-revisit-wrapper {
    z-index: 10000 !important;
}

/* Modal Container */
.rmk-contest-modal {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 100000;
    display: none;
}

.rmk-modal-backdrop {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(4px);
}

/* Modal Content - Using CSS custom property for viewport height */
.rmk-modal-content {
    position: relative;
    width: 95vw;
    /* Use calculated viewport height instead of vh units */
    height: calc(var(--actual-vh, 1vh) * 95);
    margin: calc(var(--actual-vh, 1vh) * 2.5) auto;
    background: var(--rmk-dark-background);
    border-radius: var(--rmk-border-radius);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    display: flex;
    flex-direction: row;
    /* Enable scrolling when content exceeds viewport */
    overflow-y: auto;
    overflow-x: hidden;
    /* Smooth scrolling behavior */
    scroll-behavior: smooth;
    /* iOS momentum scrolling */
    -webkit-overflow-scrolling: touch;
}

/* Loading Indicator */
.rmk-modal-loading {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(33, 33, 36, 0.9);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 100002;
    backdrop-filter: blur(2px);
}

.rmk-modal-loading.active {
    display: flex;
}

.rmk-modal-loading-spinner {
    width: 50px;
    height: 50px;
    border: 4px solid rgba(255, 255, 255, 0.3);
    border-top-color: var(--rmk-primary-color);
    border-radius: 50%;
    animation: rmk-spin 0.8s linear infinite;
}

@keyframes rmk-spin {
    to { transform: rotate(360deg); }
}

/* Close Button */
.rmk-modal-close {
    position: absolute;
    top: var(--rmk-spacing-md);
    right: var(--rmk-spacing-md);
    background: rgba(0, 0, 0, 0.5);
    color: white;
    border: none;
    border-radius: 50%;
    font-size: 1.5rem;
    cursor: pointer;
    z-index: 100001;
    transition: var(--rmk-transition);
    display: flex;
    align-items: center;
    justify-content: center;
    /* Minimum touch target size for accessibility (WCAG 2.1 Level AA) */
    min-width: 44px;
    min-height: 44px;
}

.rmk-modal-close:hover {
    background: rgba(0, 0, 0, 0.7);
}

.rmk-modal-close:focus-visible {
    outline: 2px solid var(--rmk-primary-color);
    outline-offset: 2px;
}

/* Image Container */
.rmk-modal-image-container {
    position: relative;
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--rmk-spacing-lg);
    /* Allow overflow for proper image sizing */
    overflow: visible;
}

/* Image Element - Preserves aspect ratio */
.rmk-modal-image {
    max-width: 100%;
    max-height: 100%;
    width: auto;
    height: auto;
    object-fit: contain;
}

/* Navigation Buttons */
.rmk-modal-prev,
.rmk-modal-next {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background: rgba(0, 0, 0, 0.5);
    color: white;
    border: none;
    border-radius: 50%;
    font-size: 1.5rem;
    cursor: pointer;
    transition: var(--rmk-transition);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 100002;
    /* Minimum touch target size for accessibility (WCAG 2.1 Level AA) */
    min-width: 50px;
    min-height: 50px;
}

.rmk-modal-prev {
    left: var(--rmk-spacing-md);
}

.rmk-modal-next {
    right: var(--rmk-spacing-md);
}

.rmk-modal-prev:hover,
.rmk-modal-next:hover {
    background: rgba(0, 0, 0, 0.7);
}

.rmk-modal-prev:focus-visible,
.rmk-modal-next:focus-visible {
    outline: 2px solid var(--rmk-primary-color);
    outline-offset: 2px;
}

/* Info Sidebar */
.rmk-modal-info {
    flex: 0 0 350px;
    display: flex;
    flex-direction: column;
    padding: var(--rmk-spacing-xl);
    background: var(--rmk-background);
    border-left: 1px solid var(--rmk-border-light);
    box-sizing: border-box;
}

.rmk-modal-description {
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: var(--rmk-spacing-md);
    color: var(--rmk-green);
    line-height: 1.4;
}

.rmk-modal-author,
.rmk-modal-school,
.rmk-modal-school-level {
    font-size: 1rem;
    color: var(--rmk-text-light);
    margin-bottom: var(--rmk-spacing-sm);
    line-height: 1.5;
}

.rmk-modal-vote-section {
    display: flex;
    flex-direction: column;
    align-items: stretch;
    gap: var(--rmk-spacing-md);
    margin-top: auto;
    padding-top: var(--rmk-spacing-xl);
    border-top: 1px solid var(--rmk-green);
}

/* Notification Overlay in Modal */
.rmk-modal-image-container .rmk-notification-overlay {
    bottom: var(--rmk-spacing-lg);
    right: var(--rmk-spacing-lg);
    left: auto;
    width: auto;
    z-index: 100003; /* Above modal navigation buttons (10002) */
    border-radius: var(--rmk-border-radius);
}

/* Mobile Layout - Stacks vertically (<=768px) */
@media (max-width: 768px) {
    .rmk-modal-content {
        width: 100vw;
        /* Full viewport height on mobile */
        height: calc(var(--actual-vh, 1vh) * 100);
        margin: 0;
        flex-direction: column;
        border-radius: 0;
        /* Ensure padding is included in width calculation */
        box-sizing: border-box;
        /* Safe area insets for notched devices - use max() to avoid double-padding */
        padding-top: max(var(--rmk-spacing-md), env(safe-area-inset-top));
        padding-bottom: max(var(--rmk-spacing-md), env(safe-area-inset-bottom));
        padding-left: max(var(--rmk-spacing-sm), env(safe-area-inset-left));
        padding-right: max(var(--rmk-spacing-sm), env(safe-area-inset-right));
    }

    .rmk-modal-image-container {
        /* Remove flex: 1 to prevent overlap - size to content instead */
        flex: 0 0 auto;
        width: 100%;
        padding: var(--rmk-spacing-md);
        /* Ensure padding is included in width calculation */
        box-sizing: border-box;
        /* Change to grid layout to stack image and button row */
        display: grid;
        grid-template-rows: auto auto;
        grid-template-columns: 1fr auto auto 1fr;
        gap: var(--rmk-spacing-md);
        align-items: center;
        justify-items: center;
    }

    /* Image full-width on mobile - spans all columns */
    .rmk-modal-image {
        width: 100%;
        height: auto;
        max-width: 100%;
        /* Allow image to size naturally, container will expand */
        object-fit: contain;
        grid-row: 1;
        grid-column: 1 / -1;
    }

    /* Navigation buttons below image on mobile */
    .rmk-modal-prev,
    .rmk-modal-next {
        position: static;
        transform: none;
        margin: 0;
        grid-row: 2;
    }

    /* Buttons side by side centered in second row with proper spacing */
    .rmk-modal-prev {
        grid-column: 2;
        justify-self: end;
    }

    .rmk-modal-next {
        grid-column: 3;
        justify-self: start;
    }

    .rmk-modal-info {
        flex: 1 1 auto;
        /* Remove max-height to allow scrolling of entire modal */
        border-left: none;
        border-top: 1px solid var(--rmk-border-light);
        padding: var(--rmk-spacing-lg);
        /* Extend padding to cover modal's bottom padding for seamless appearance */
        padding-bottom: calc(var(--rmk-spacing-lg) + max(var(--rmk-spacing-md), env(safe-area-inset-bottom)));
        /* Negative margin to compensate for modal padding and extend background */
        margin-bottom: calc(-1 * max(var(--rmk-spacing-md), env(safe-area-inset-bottom)));
    }

    .rmk-modal-vote-section {
        padding-top: var(--rmk-spacing-md);
        margin-top: var(--rmk-spacing-md);
    }

    /* Move close button above image in mobile view */
    .rmk-modal-close {
        position: static;
        align-self: flex-end;
        margin-right: max(var(--rmk-spacing-md), env(safe-area-inset-right));
        margin-top: max(var(--rmk-spacing-sm), env(safe-area-inset-top));
        margin-bottom: var(--rmk-spacing-sm);
        order: -1; /* Place before image container */
    }
}

/* Small Mobile Adjustments (<=480px) */
@media (max-width: 480px) {
    .rmk-modal-prev,
    .rmk-modal-next {
        font-size: 1.2rem;
        /* Touch targets remain at minimum 44px */
    }

    .rmk-modal-prev {
        left: var(--rmk-spacing-sm);
    }

    .rmk-modal-next {
        right: var(--rmk-spacing-sm);
    }

    .rmk-modal-close {
        font-size: 1.2rem;
        /* Touch target remains at minimum 44px */
    }

    .rmk-modal-info {
        padding: var(--rmk-spacing-md);
    }

    .rmk-modal-image-container {
        padding: var(--rmk-spacing-sm);
    }
}

/* Short Screens - Optimize vertical space (<=600px height) */
@media (max-height: 600px) {
    .rmk-modal-content {
        height: calc(var(--actual-vh, 1vh) * 100);
        margin: 0;
    }

    .rmk-modal-info {
        flex: 1 1 auto;
        padding: var(--rmk-spacing-md);
    }

    .rmk-modal-description,
    .rmk-modal-author,
    .rmk-modal-school,
    .rmk-modal-school-level {
        font-size: 0.9rem;
        margin-bottom: var(--rmk-spacing-xs);
    }
}

/* Accessibility - Reduced Motion */
@media (prefers-reduced-motion: reduce) {
    .rmk-modal-content {
        scroll-behavior: auto;
    }

    .rmk-modal-loading-spinner {
        animation-duration: 2s;
    }
}

/* High Contrast Mode Support */
@media (prefers-contrast: high), (-ms-high-contrast: active) {
    .rmk-modal-backdrop {
        background: rgba(0, 0, 0, 0.95); /* Increase from 0.8 for better contrast */
        backdrop-filter: none; /* Remove blur for clarity */
    }

    .rmk-modal-content {
        border: 2px solid currentColor; /* Add border for definition */
    }

    .rmk-modal-close,
    .rmk-modal-prev,
    .rmk-modal-next {
        border: 2px solid currentColor;
    }
}