/* ========== SLIDESHOW CONTROL CENTER MODAL ========== */
.slideshow-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 2000;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s ease;
}

.slideshow-modal:not(.hidden) {
    opacity: 1;
    pointer-events: auto;
}

.slideshow-modal.hidden {
    display: flex;
}

.slideshow-modal-content {
    background: rgba(30, 32, 48, 0.95);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 24px;
    padding: 16px;
    max-width: 700px;
    width: 95%;
    max-height: 85vh;
    overflow-y: auto;
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.5);
    transform: scale(0.95) translateY(20px);
    transition: all 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
    overscroll-behavior: contain;
}

.slideshow-modal:not(.hidden) .slideshow-modal-content {
    transform: scale(1) translateY(0);
}

/* Modal Header - compact */
.slideshow-modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 8px;
    padding-bottom: 0;
    /* border removed for space saving */
}

.slideshow-modal-header h3 {
    margin: 0;
    font-size: 0.9rem;
    font-weight: 600;
    color: #fff;
}

.modal-btn-small {
    background: rgba(255, 255, 255, 0.1);
    border: none;
    color: rgba(255, 255, 255, 0.8);
    font-size: 1rem;
    cursor: pointer;
    width: 32px;
    height: 32px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s ease;
}

.modal-btn-small:hover {
    background: rgba(255, 255, 255, 0.2);
    color: #fff;
}

/* Toolbar - compact */
.slideshow-toolbar {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-bottom: 6px;
    padding: 6px 8px;
    background: rgba(255, 255, 255, 0.03);
    border-radius: 10px;
}

.slideshow-control-group {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.slideshow-control-label {
    font-size: 0.67rem;
    color: rgba(255, 255, 255, 0.5);
    text-transform: none;
    letter-spacing: 0.4px;
}

.slideshow-timing-buttons,
.slideshow-option-buttons,
.slideshow-intensity-buttons {
    display: flex;
    gap: 6px;
}

.slideshow-timing-btn,
.slideshow-option-btn,
.slideshow-intensity-btn,
.slideshow-action-btn {
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.15);
    color: rgba(255, 255, 255, 0.8);
    padding: 4px 10px;
    border-radius: 6px;
    font-size: 0.8rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s ease;
    white-space: nowrap;
}

.slideshow-timing-btn:hover,
.slideshow-option-btn:hover,
.slideshow-intensity-btn:hover,
.slideshow-action-btn:hover {
    background: rgba(255, 255, 255, 0.15);
    border-color: rgba(255, 255, 255, 0.3);
    color: #fff;
}

.slideshow-timing-btn.active,
.slideshow-option-btn.active,
.slideshow-intensity-btn.active {
    background: rgba(59, 130, 246, 0.3);
    border-color: rgba(59, 130, 246, 0.6);
    color: #fff;
}

.slideshow-custom-input {
    width: 70px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.15);
    color: #fff;
    padding: 6px 8px;
    border-radius: 8px;
    font-size: 0.85rem;
    text-align: center;
}

.slideshow-custom-input::placeholder {
    color: rgba(255, 255, 255, 0.4);
}

.slideshow-custom-input:focus {
    outline: none;
    border-color: rgba(59, 130, 246, 0.6);
    background: rgba(59, 130, 246, 0.1);
}

/* Selection Bar - consolidated row with count, filters, actions, sort */
.slideshow-selection-bar {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 8px;
    padding: 6px 10px;
    background: rgba(255, 255, 255, 0.03);
    border-radius: 8px;
    flex-wrap: wrap;  /* Allow wrapping on narrow screens */
}

.slideshow-image-count {
    font-size: 0.85rem;
    color: rgba(255, 255, 255, 0.6);
    white-space: nowrap;
    flex-shrink: 0;
}

/* Filter chips container - grows to fill available space */
.slideshow-selection-bar .slideshow-filter-chips {
    display: flex;
    gap: 6px;
    flex-wrap: wrap;
    flex: 1;  /* Take available space */
    min-width: 0;
}

.slideshow-selection-buttons {
    display: flex;
    gap: 6px;
    flex-shrink: 0;
}

/* Sort dropdown in selection bar */
.slideshow-selection-bar .slideshow-sort-select {
    flex-shrink: 0;
}

/* Image Grid */
.slideshow-image-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
    gap: 0;
    overflow-x: hidden;  /* Prevent horizontal scroll from hover scale */
    overflow-y: auto;
    padding: 0;
    width: 100%;
    grid-auto-rows: min-content;  /* Fit content exactly to prevent overlap */
    align-items: start;  /* Align items to top of their cells */
    /* Prevent pull-to-refresh */
    overscroll-behavior: contain;
    touch-action: manipulation;
    /* Auto-hide scrollbar */
    scrollbar-width: thin;
    scrollbar-color: rgba(255, 255, 255, 0.2) transparent;
    /* Performance: Isolate layout calculations */
    contain: layout paint;
}

/* Webkit scrollbar - auto-hide effect */
.slideshow-image-grid::-webkit-scrollbar {
    width: 6px;
}

.slideshow-image-grid::-webkit-scrollbar-track {
    background: transparent;
}

.slideshow-image-grid::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.15);
    border-radius: 3px;
}

.slideshow-image-grid::-webkit-scrollbar-thumb:hover {
    background: rgba(255, 255, 255, 0.3);
}

.slideshow-image-card {
    position: relative;
    aspect-ratio: 1;
    border-radius: 0px;
    overflow: hidden;
    cursor: pointer;
    /* No border for seamless mosaic - only excluded gets border */
    transition: transform 0.2s ease, opacity 0.2s ease;
    /* Performance: GPU acceleration and skip off-screen rendering */
    will-change: transform;
    content-visibility: auto;
    contain-intrinsic-size: 140px 140px;
}

.slideshow-image-card:hover {
    /* Subtle scale on hover instead of border */
    transform: scale(1.02);
    z-index: 1;  /* Bring to front when scaled */
}

/* Selected state - currently disabled (excluded styling is sufficient)
.slideshow-image-card.selected {
    border-color: rgba(59, 130, 246, 0.8);
    box-shadow: 0 0 0 2px rgba(59, 130, 246, 0.3);
}
*/

.slideshow-image-card.excluded {
    opacity: 0.4;
    /* Use inset shadow instead of border to not break mosaic */
    box-shadow: inset 0 0 0 2px rgba(239, 68, 68, 0.3);
}

.slideshow-image-card.excluded::after {
    content: '✕';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: 2rem;
    color: rgba(239, 68, 68, 0.8);
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.5);
}

.slideshow-image-card img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.slideshow-image-card-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 8px;
    background: linear-gradient(to top, rgba(0, 0, 0, 0.9), transparent);
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.slideshow-image-source {
    font-size: 0.7rem;
    font-weight: 600;
    color: rgba(255, 255, 255, 0.9);
    /* Title case defined in JS, no transform needed */
    letter-spacing: 0.3px;
}

.slideshow-image-resolution {
    font-size: 0.65rem;
    color: rgba(255, 255, 255, 0.6);
}

/* Responsive - Mobile */
@media (max-width: 768px) {
    .slideshow-toolbar {
        flex-direction: column;
    }
    
    /* Selection bar should stack on mobile */
    .slideshow-selection-bar {
        flex-direction: column;
        align-items: flex-start;
        gap: 8px;
    }
    
    /* Filter chips take full width and wrap naturally */
    .slideshow-selection-bar .slideshow-filter-chips {
        width: 100%;
        justify-content: flex-start;
    }
    
    /* Selection buttons on their own row */
    .slideshow-selection-buttons {
        width: 100%;
        justify-content: flex-start;
    }
    
    /* Or limit the whole timing buttons row */
    .slideshow-timing-buttons {
        flex-wrap: wrap;
        min-width: 10px;
        max-width: 100%;
    }
    
    .slideshow-custom-input {
        width: auto;
        min-width: 10px;
        max-width: 60%;
        font-size: 0.7rem;
        flex-shrink: 1;
    }      

    /* Hide custom input by default, show only when Custom is selected */
    .slideshow-custom-input {
        display: none;
    }

    /* Show when Custom button is active (JS adds class to parent or uses :has) */
    #slideshow-custom-btn.active + .slideshow-custom-input,
    .slideshow-custom-input:focus {
        display: block !important;
    }
    
    .slideshow-image-grid {
        grid-template-columns: repeat(auto-fill, minmax(130px, 1fr));
    }
}

/* Desktop - Larger Modal */
@media (min-width: 768px) {
    .slideshow-modal-content {
        max-width: 93vw;
        width: 95%;
        max-height: 90vh;
        min-height: 400px;
        display: flex;
        flex-direction: column;
    }
    
    .slideshow-image-grid {
        /* Old: auto-fill with minmax for responsive columns */
        /* grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); */
        
        /* Fixed 4 columns for consistent layout */
        grid-template-columns: repeat(4, 1fr);
        flex: 1;
        min-height: 0;
    }
}

/* ========== SORT DROPDOWN ========== */
.slideshow-sort-select {
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 6px;
    padding: 6px 12px;
    color: white;
    font-size: 0.85rem;
    cursor: pointer;
    min-width: 100px;
    transition: all 0.2s ease;
}

.slideshow-sort-select:hover {
    background: rgba(255, 255, 255, 0.15);
    border-color: rgba(255, 255, 255, 0.3);
}

.slideshow-sort-select:focus {
    outline: none;
    border-color: rgba(255, 255, 255, 0.4);
}

/* ========== FILTER CHIPS ========== */
.slideshow-filter-group {
    flex: 1;
    min-width: 200px;
}

.slideshow-filter-chips {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    align-items: center;
}

.slideshow-filter-chip {
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 14px;
    padding: 4px 10px;
    font-size: 0.75rem;
    color: rgba(255, 255, 255, 0.8);
    cursor: pointer;
    transition: all 0.2s ease;
    user-select: none;
}

.slideshow-filter-chip:hover {
    background: rgba(255, 255, 255, 0.2);
    color: #fff;
}

.slideshow-filter-chip.active {
    background: rgba(255, 255, 255, 0.25);
    border-color: rgba(255, 255, 255, 0.4);
    color: #fff;
    font-weight: 500;
}

.slideshow-reset-filters-btn {
    background: transparent;
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: 4px;
    padding: 2px 4px;
    font-size: 0.6rem;
    color: rgba(255, 255, 255, 0.5);
    cursor: pointer;
    margin-left: auto;
    transition: all 0.2s ease;
}

.slideshow-reset-filters-btn:hover {
    background: rgba(255, 255, 255, 0.1);
    color: rgba(255, 255, 255, 0.9);
}

/* ========== FAVORITE STAR BUTTON ========== */
.slideshow-favorite-btn {
    position: absolute;
    top: 6px;
    right: 6px;
    background: rgba(0, 0, 0, 0.5);
    border: none;
    border-radius: 50%;
    width: 26px;
    height: 26px;
    cursor: pointer;
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.85rem;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: all 0.2s ease;
    z-index: 5;
}

.slideshow-image-card:hover .slideshow-favorite-btn {
    opacity: 1;
}

.slideshow-favorite-btn:hover {
    background: rgba(0, 0, 0, 0.7);
    color: #fff;
}

.slideshow-favorite-btn.active {
    opacity: 1;
    color: gold;
}

.slideshow-favorite-btn.active:hover {
    color: #ffc107;
}