/**
 * Card and Overlay Component
 * Styles for cards, overlays, and photo grid
 */

/* Card styles */
.card-container {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 1em;
    margin-top: 2em;
}

.card {
    background: transparent;
    color: black;
    border-radius: var(--radius-2xl);
    overflow: hidden;
    text-decoration: none;
    width: 300px;
    position: relative;
    cursor: pointer;
    transition: transform 0.3s ease;
    opacity: 0;
    animation: cardFadeIn 0.8s ease-out forwards;
    animation-delay: calc(var(--card-index, 0) * 0.2s);
    aspect-ratio: 5/4;  /* Maintain consistent card proportions */
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.2);
}

.card-image {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

.card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.card:hover .card-image img {
    transform: scale(1.1);
}

.card-text {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 50px; /* Fixed height for the text area */
    padding: 0.5em; /* Padding for the content inside */
    
    /* Enhanced glass effect - uses variables */
    background: linear-gradient(135deg, 
        rgba(26, 26, 26, 0.85) 0%, 
        rgba(46, 46, 46, 0.9) 100%);
    backdrop-filter: blur(var(--glass-blur-search)) saturate(var(--glass-saturation-search));
    -webkit-backdrop-filter: blur(var(--glass-blur-search)) saturate(var(--glass-saturation-search));
    border-top: 1px solid rgba(255, 255, 255, 0.15);
    box-shadow: 
        0 -4px 16px rgba(0, 0, 0, 0.3),
        var(--shadow-inset);

    /* Center text using flexbox */
    display: flex;
    justify-content: center;
    align-items: center;
    text-align: center;
    
    color: white;
    /* The initial font size is set here, but JS will adjust it */
    font-size: 1.2em; 
    z-index: 1;
    overflow: hidden; /* Hide overflow before JS runs */
}

.dark-mode .card {
    background-color: transparent;
}

.dark-mode .card-text {
    color: white;
}

/* Card overlay styles */
.card-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    background: rgba(0, 0, 0, 0.3);
    display: none;
    justify-content: center;
    align-items: center;
    z-index: 1000;
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
    visibility: hidden;
    opacity: 0;
    transition: opacity 0.3s ease, visibility 0.3s ease;
    /* Create stacking context for children z-index to work properly */
    isolation: isolate;
}

/* Ensure overlay is hidden when hidden attribute is present - high specificity to override glass scripts */
.card-overlay[hidden],
body .card-overlay:not(.active) {
    display: none !important;
    visibility: hidden !important;
}

/* Show overlay when active and not hidden - !important needed to override glass effect inline styles */
.card-overlay.active:not([hidden]) {
    display: flex !important;
    visibility: visible !important;
    opacity: 1;
}

.expanded-card {
    /* Glass effect using CSS backdrop-filter - shows DOM content (home page elements) through glass */
    /* Background is semi-transparent to show blurred content behind - reduced alpha for more transparency */
    background: linear-gradient(135deg, 
        rgba(26, 26, 26, 0.4) 0%, 
        rgba(46, 46, 46, 0.35) 100%);
    /* CSS backdrop-filter blurs the DOM content behind the card (home page elements) */
    backdrop-filter: blur(var(--glass-blur-intro)) saturate(var(--glass-saturation-heavy));
    -webkit-backdrop-filter: blur(var(--glass-blur-intro)) saturate(var(--glass-saturation-heavy));
    width: 90%;
    max-width: 1200px;
    height: 80vh;
    border-radius: var(--radius-xl);
    padding: 2em;
    position: relative;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    border: 1px solid rgba(255, 255, 255, var(--glass-border-opacity-hover));
    box-shadow: 
        0 12px 48px rgba(0, 0, 0, 0.5),
        var(--shadow-inset);
    z-index: 1;
    isolation: isolate;
}

/* Ensure expanded-card is hidden when parent overlay is not active - high specificity */
.card-overlay:not(.active) .expanded-card,
.card-overlay[hidden] .expanded-card {
    display: none !important;
    visibility: hidden !important;
}

.expanded-content {
    flex: 1;
    overflow-y: auto;
    padding-right: 1em;
    margin-top: 0;
    padding-top: 0;
    position: relative;
    /* Content inherits stacking context from .expanded-card, no need for explicit z-index */
    /* But set it explicitly to ensure it's above any potential glass effects */
    z-index: 1;
}

.expanded-content::-webkit-scrollbar {
    width: 8px;
}

.expanded-content::-webkit-scrollbar-track {
    background: var(--color-dark-grey);
}

.expanded-content::-webkit-scrollbar-thumb {
    background: var(--color-hover);
    border-radius: var(--radius-xs);
}

.close-button {
    position: absolute;
    top: 1em;
    right: 1em;
    background: rgba(0, 0, 0, 0.3);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    font-size: 2em;
    cursor: pointer;
    color: var(--color-white);
    padding: 0.2em 0.5em;
    border-radius: 50%;
    transition: all var(--transition-base);
    /* Close button must appear above all content */
    z-index: 10;
    width: 2.5em;
    height: 2.5em;
    display: flex;
    align-items: center;
    justify-content: center;
    line-height: 1;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
}

.close-button:hover {
    background: rgba(0, 0, 0, 0.5);
    border-color: rgba(255, 255, 255, 0.3);
    transform: scale(1.1);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.4);
}

.close-button:focus {
    outline: 2px solid rgba(93, 143, 179, 0.6);
    outline-offset: 2px;
}

.close-button:focus:not(:focus-visible) {
    outline: none;
}

.close-button:active {
    transform: scale(0.95);
}

.dark-mode .expanded-card {
    /* Semi-transparent background in dark mode to show glass effect - reduced alpha for more transparency */
    background: linear-gradient(135deg, 
        rgba(30, 30, 30, 0.4) 0%, 
        rgba(40, 40, 40, 0.35) 100%);
    color: var(--color-white);
}

.dark-mode .close-button {
    color: var(--color-white);
}

.dark-mode .close-button:hover {
    background-color: rgba(255, 255, 255, 0.1);
}

/* Photo grid styles */
.photo-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(250px, 300px));
    gap: 2em;
    padding: 2em;
    justify-content: center;
}

@media (max-width: 1000px) {
    .photo-grid {
        grid-template-columns: repeat(2, minmax(250px, 300px));
    }
}

@media (max-width: 600px) {
    .photo-grid {
        grid-template-columns: repeat(1, minmax(250px, 300px));
        gap: 1em;
        padding: 1em;
    }
}

.photo-card {
    cursor: pointer;
    border-radius: var(--radius-md);
    overflow: hidden;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
    opacity: 0;
    animation: photoFadeIn 0.8s ease-out forwards;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    background: var(--color-dark-grey);
    height: 250px;
}

.photo-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.2);
}

.photo-card img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.photo-card:hover img {
    transform: scale(1.05);
}

@keyframes photoFadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes cardFadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}