/* =========================================================
   GALLERY PAGE
   Green Valley Public School
   ========================================================= */


/* =========================================================
   HERO
   ========================================================= */

.zi-gallery-hero {
    background: linear-gradient( 135deg, rgba(3, 68, 47, 0.96), rgba(7, 88, 63, 0.90) );
}

    .zi-gallery-hero .zi-page-hero-content {
        max-width: var(--zi-content-width-medium);
    }

.zi-gallery-hero-label {
    color: var(--zi-color-secondary-light);
}


/* =========================================================
   INTRODUCTION
   ========================================================= */

.zi-gallery-introduction {
    background: var(--zi-color-white);
}

.zi-gallery-introduction-content {
    max-width: var(--zi-content-width-medium);
    margin-inline: auto;
    text-align: center;
}

    .zi-gallery-introduction-content .zi-section-heading {
        margin-bottom: var(--zi-space-5);
    }

        .zi-gallery-introduction-content .zi-section-heading span {
            color: var(--zi-color-primary);
        }

    .zi-gallery-introduction-content p {
        margin: 0 auto var(--zi-space-4);
        color: var(--zi-color-text-light);
        line-height: var(--zi-line-height-relaxed);
    }


/* =========================================================
   GALLERY SECTION
   ========================================================= */

.zi-gallery-section {
    background: var(--zi-color-cream);
}

.zi-gallery-header {
    display: flex;
    flex-direction: column;
    gap: var(--zi-space-3);
    margin-bottom: var(--zi-space-7);
}

.zi-gallery-heading .zi-section-heading span {
    color: var(--zi-color-primary);
}

.zi-gallery-count {
    color: var(--zi-color-text-light);
    font-size: var(--zi-font-sm);
}


/* =========================================================
   FILTERS
   ========================================================= */

.zi-gallery-filter-wrapper {
    margin-bottom: var(--zi-space-8);
    overflow-x: auto;
    scrollbar-width: thin;
}

.zi-gallery-filters {
    display: flex;
    align-items: center;
    gap: var(--zi-space-2);
    width: max-content;
    min-width: 100%;
    padding-bottom: var(--zi-space-2);
}

.zi-gallery-filter {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--zi-space-2);
    min-height: 42px;
    padding-inline: var(--zi-space-4);
    border: 1px solid var(--zi-color-border);
    border-radius: 999px;
    background: var(--zi-color-white);
    color: var(--zi-color-text);
    font-size: var(--zi-font-sm);
    font-weight: 600;
    white-space: nowrap;
    cursor: pointer;
    transition: background var(--zi-transition-fast), color var(--zi-transition-fast), border-color var(--zi-transition-fast), transform var(--zi-transition-fast);
}

    .zi-gallery-filter i {
        font-size: 0.8rem;
    }

    .zi-gallery-filter:hover {
        border-color: var(--zi-color-primary);
        color: var(--zi-color-primary);
        transform: translateY(-2px);
    }

.zi-gallery-filter-active {
    border-color: var(--zi-color-primary);
    background: var(--zi-color-primary);
    color: var(--zi-color-white);
}

    .zi-gallery-filter-active:hover {
        background: var(--zi-color-primary-dark);
        color: var(--zi-color-white);
    }


/* =========================================================
   GALLERY LIST
   ========================================================= */

.zi-gallery-list {
    display: flex;
    flex-wrap: wrap;
    align-items: flex-start;
    gap: var(--zi-space-5);
}


/* =========================================================
   GALLERY ITEM
   ========================================================= */

.zi-gallery-item {
    flex: 1 1 280px;
    min-width: 260px;
    max-width: 100%;
}

    .zi-gallery-item.zi-gallery-item-hidden {
        display: none;
    }


/* =========================================================
   GALLERY CARD
   ========================================================= */

.zi-gallery-card {
    display: block;
    width: 100%;
    padding: 0;
    overflow: hidden;
    border: 0;
    border-radius: var(--zi-radius-lg);
    background: var(--zi-color-white);
    box-shadow: var(--zi-shadow-sm);
    color: inherit;
    text-align: left;
    cursor: pointer;
    transition: transform var(--zi-transition-normal), box-shadow var(--zi-transition-normal);
}

    .zi-gallery-card:hover {
        transform: var(--zi-hover-lift);
        box-shadow: var(--zi-shadow-md);
    }


/* =========================================================
   MEDIA AREA
   ========================================================= */

.zi-gallery-media {
    position: relative;
    overflow: hidden;
    background: var(--zi-color-cream-dark);
}

.zi-gallery-image-placeholder,
.zi-gallery-video-placeholder {
    width: 100%;
    min-height: 250px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: var(--zi-space-2);
    padding: var(--zi-space-6);
    background: var(--zi-color-cream-dark);
    color: var(--zi-color-text-light);
    text-align: center;
}

.zi-gallery-placeholder-tall {
    min-height: 340px;
}

.zi-gallery-placeholder-wide {
    min-height: 210px;
}

.zi-gallery-image-placeholder i {
    margin-bottom: var(--zi-space-2);
    color: var(--zi-color-primary);
    font-size: 2.5rem;
}

.zi-gallery-image-placeholder span,
.zi-gallery-video-placeholder > span:not(.zi-gallery-video-icon) {
    color: var(--zi-color-text);
    font-size: var(--zi-font-sm);
    font-weight: 700;
}

.zi-gallery-image-placeholder small,
.zi-gallery-video-placeholder small {
    font-size: var(--zi-font-xs);
}


/* =========================================================
   REAL GALLERY IMAGES
   ========================================================= */

.zi-gallery-image {
    display: block;
    width: 100%;
    height: auto;
    max-width: 100%;
    object-fit: contain;
    background: var(--zi-color-cream-dark);
    transition: transform var(--zi-transition-normal);
}

.zi-gallery-card:hover .zi-gallery-image {
    transform: scale(1.025);
}

/* =========================================================
   IMAGE OVERLAY
   ========================================================= */

.zi-gallery-overlay {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(3, 68, 47, 0.45);
    opacity: 0;
    transition: opacity var(--zi-transition-normal);
}

.zi-gallery-card:hover .zi-gallery-overlay,
.zi-gallery-card:focus-visible .zi-gallery-overlay {
    opacity: 1;
}

.zi-gallery-open-icon {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background: var(--zi-color-secondary);
    color: var(--zi-color-black);
    font-size: var(--zi-font-md);
}


/* =========================================================
   CARD CONTENT
   ========================================================= */

.zi-gallery-card-content {
    padding: var(--zi-space-4);
}

.zi-gallery-card-category {
    display: block;
    margin-bottom: var(--zi-space-1);
    color: var(--zi-color-primary);
    font-size: var(--zi-font-xs);
    font-weight: 700;
    letter-spacing: var(--zi-letter-spacing-wide);
    text-transform: uppercase;
}

.zi-gallery-card-content h3 {
    margin: 0;
    color: var(--zi-color-text);
    font-family: var(--zi-font-heading);
    font-size: var(--zi-font-lg);
    line-height: var(--zi-line-height-normal);
}


/* =========================================================
   VIDEO CARD
   ========================================================= */

.zi-gallery-video-placeholder {
    min-height: 250px;
    background: var(--zi-color-primary-dark);
    color: var(--zi-color-white);
}

    .zi-gallery-video-placeholder > span:not(.zi-gallery-video-icon) {
        color: var(--zi-color-white);
    }

    .zi-gallery-video-placeholder small {
        color: var(--zi-white-muted);
    }

.zi-gallery-video-icon {
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--zi-space-2);
    border-radius: 50%;
    background: var(--zi-color-secondary);
    color: var(--zi-color-black);
    font-size: 1.2rem;
    transition: transform var(--zi-transition-normal);
}

.zi-gallery-card:hover .zi-gallery-video-icon {
    transform: scale(1.08);
}

.zi-gallery-video-badge {
    position: absolute;
    top: var(--zi-space-3);
    left: var(--zi-space-3);
    display: inline-flex;
    align-items: center;
    gap: var(--zi-space-2);
    padding: var(--zi-space-2) var(--zi-space-3);
    border-radius: 999px;
    background: var(--zi-color-secondary);
    color: var(--zi-color-black);
    font-size: var(--zi-font-xs);
    font-weight: 700;
}


/* =========================================================
   EMPTY STATE
   ========================================================= */

.zi-gallery-empty {
    padding: var(--zi-space-12) var(--zi-space-5);
    text-align: center;
}

    .zi-gallery-empty i {
        margin-bottom: var(--zi-space-4);
        color: var(--zi-color-primary);
        font-size: 2.5rem;
    }

    .zi-gallery-empty h3 {
        margin: 0 0 var(--zi-space-2);
        color: var(--zi-color-text);
        font-family: var(--zi-font-heading);
    }

    .zi-gallery-empty p {
        margin: 0;
        color: var(--zi-color-text-light);
    }


/* =========================================================
   GALLERY CTA
   ========================================================= */

.zi-gallery-cta {
    padding-block: var(--zi-space-12);
    background: var(--zi-color-primary-dark);
}

.zi-gallery-cta-content {
    max-width: var(--zi-content-width-medium);
    margin-inline: auto;
    text-align: center;
}

    .zi-gallery-cta-content .zi-section-label {
        color: var(--zi-color-secondary-light);
    }

    .zi-gallery-cta-content h2 {
        margin: 0 0 var(--zi-space-4);
        color: var(--zi-color-white);
        font-family: var(--zi-font-heading);
        font-size: clamp(1.9rem, 4vw, 3rem);
        line-height: var(--zi-line-height-tight);
    }

        .zi-gallery-cta-content h2 span {
            display: block;
            color: var(--zi-color-secondary);
        }

    .zi-gallery-cta-content p {
        max-width: 650px;
        margin: 0 auto var(--zi-space-6);
        color: var(--zi-white-muted);
        line-height: var(--zi-line-height-relaxed);
    }


/* =========================================================
   LIGHTBOX
   ========================================================= */

.zi-gallery-lightbox {
    position: fixed;
    inset: 0;
    z-index: 2000;
    display: none;
    align-items: center;
    justify-content: center;
    padding: var(--zi-space-4);
    background: rgba(3, 20, 14, 0.90);
}

    .zi-gallery-lightbox.zi-gallery-lightbox-active {
        display: flex;
    }

.zi-gallery-lightbox-inner {
    position: relative;
    width: 100%;
    max-width: 1150px;
    max-height: 92vh;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    border: 1px solid rgba(255, 255, 255, 0.18);
    border-radius: var(--zi-radius-lg);
    background: var(--zi-color-black);
    box-shadow: var(--zi-shadow-md);
}


/* =========================================================
   LIGHTBOX MEDIA
   ========================================================= */

.zi-gallery-lightbox-media {
    min-height: 300px;
    max-height: 65vh;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    background: #111814;
}

.zi-lightbox-image,
.zi-lightbox-video {
    width: auto;
    max-width: 100%;
    height: auto;
    max-height: 65vh;
    object-fit: contain;
}

    .zi-lightbox-image:not([hidden]),
    .zi-lightbox-video:not([hidden]) {
        display: block;
    }

    .zi-lightbox-video:not([hidden]) {
        width: 100%;
    }

    .zi-lightbox-image[hidden],
    .zi-lightbox-video[hidden] {
        display: none !important;
    }


/* =========================================================
   LIGHTBOX DETAILS
   ========================================================= */

.zi-gallery-lightbox-details {
    position: relative;
    flex: 0 0 auto;
    padding: var(--zi-space-5);
    background: var(--zi-color-black);
}

.zi-gallery-lightbox-category {
    display: block;
    margin-bottom: var(--zi-space-2);
    color: var(--zi-color-secondary);
    font-size: var(--zi-font-xs);
    font-weight: 700;
    letter-spacing: var(--zi-letter-spacing-wide);
    text-transform: uppercase;
}

.zi-gallery-lightbox-details h2 {
    margin: 0 0 var(--zi-space-2);
    padding-right: var(--zi-space-8);
    color: var(--zi-color-white);
    font-family: var(--zi-font-heading);
    font-size: clamp(1.25rem, 3vw, 1.8rem);
    line-height: var(--zi-line-height-tight);
}

.zi-gallery-lightbox-details p {
    max-width: 750px;
    margin: 0 0 var(--zi-space-3);
    color: var(--zi-white-muted);
    font-size: var(--zi-font-sm);
    line-height: var(--zi-line-height-relaxed);
}

.zi-gallery-lightbox-counter {
    color: rgba(255, 255, 255, 0.55);
    font-size: var(--zi-font-xs);
}


/* =========================================================
   LIGHTBOX CLOSE
   ========================================================= */

.zi-gallery-lightbox-close {
    position: absolute;
    top: var(--zi-space-3);
    right: var(--zi-space-3);
    z-index: 5;
    width: 42px;
    height: 42px;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0;
    border: 1px solid rgba(255, 255, 255, 0.25);
    border-radius: 50%;
    background: rgba(0, 0, 0, 0.45);
    color: var(--zi-color-white);
    font-size: 1rem;
    cursor: pointer;
    transition: background var(--zi-transition-fast), color var(--zi-transition-fast);
}

    .zi-gallery-lightbox-close:hover,
    .zi-gallery-lightbox-close:focus-visible {
        background: var(--zi-color-secondary);
        color: var(--zi-color-black);
    }


/* =========================================================
   LIGHTBOX NAVIGATION
   ========================================================= */

.zi-gallery-lightbox-navigation {
    position: absolute;
    top: 50%;
    z-index: 5;
    width: 46px;
    height: 46px;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0;
    border: 0;
    border-radius: 50%;
    background: rgba(0, 0, 0, 0.55);
    color: var(--zi-color-white);
    font-size: 1rem;
    cursor: pointer;
    transform: translateY(-50%);
    transition: background var(--zi-transition-fast), color var(--zi-transition-fast);
}

    .zi-gallery-lightbox-navigation:hover,
    .zi-gallery-lightbox-navigation:focus-visible {
        background: var(--zi-color-secondary);
        color: var(--zi-color-black);
    }

.zi-gallery-lightbox-prev {
    left: var(--zi-space-3);
}

.zi-gallery-lightbox-next {
    right: var(--zi-space-3);
}


/* =========================================================
   FOCUS ACCESSIBILITY
   ========================================================= */

.zi-gallery-card:focus-visible,
.zi-gallery-filter:focus-visible,
.zi-gallery-lightbox-close:focus-visible,
.zi-gallery-lightbox-navigation:focus-visible {
    outline: 3px solid var(--zi-color-secondary);
    outline-offset: 3px;
}


/* =========================================================
   RESPONSIVE
   ========================================================= */

@media (min-width: 600px) {

    .zi-gallery-item {
        flex: 1 1 calc(50% - var(--zi-space-5));
    }
}


@media (min-width: 768px) {

    .zi-gallery-header {
        flex-direction: row;
        align-items: flex-end;
        justify-content: space-between;
    }

    .zi-gallery-filter-wrapper {
        overflow-x: visible;
    }

    .zi-gallery-filters {
        width: auto;
        min-width: 0;
        flex-wrap: wrap;
    }

    .zi-gallery-lightbox {
        padding: var(--zi-space-8);
    }

    .zi-gallery-lightbox-media {
        min-height: 400px;
    }
}


@media (min-width: 1000px) {

    .zi-gallery-item {
        flex: 1 1 280px;
    }

    .zi-gallery-lightbox-inner {
        max-height: 90vh;
    }

    .zi-gallery-lightbox-media {
        max-height: 68vh;
    }

    .zi-lightbox-image,
    .zi-lightbox-video {
        max-height: 68vh;
    }
}


@media (max-width: 599px) {

    .zi-gallery-item {
        flex-basis: 100%;
    }

    .zi-gallery-lightbox {
        padding: var(--zi-space-2);
    }

    .zi-gallery-lightbox-inner {
        max-height: 94vh;
        border-radius: var(--zi-radius-md);
    }

    .zi-gallery-lightbox-media {
        min-height: 230px;
        max-height: 55vh;
    }

    .zi-lightbox-image,
    .zi-lightbox-video {
        max-height: 55vh;
    }

    .zi-gallery-lightbox-details {
        padding: var(--zi-space-4);
    }

    .zi-gallery-lightbox-navigation {
        width: 40px;
        height: 40px;
    }

    .zi-gallery-lightbox-prev {
        left: var(--zi-space-2);
    }

    .zi-gallery-lightbox-next {
        right: var(--zi-space-2);
    }
}