/* =========================================
   GALLERY.CSS
========================================= */


/* =========================================
   BACKGROUND VIDEO
========================================= */

body {
    background: black;
}

.video-bg {
    position: fixed;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    z-index: -1;
}


/* =========================================
   HERO SECTION
   — padded so background video peeks on sides
   — hero card has the main image inside it
========================================= */

.project-hero {
    padding: 100px 60px 40px; /* top padding clears navbar; sides show video */
}

/* the card itself — rounded, clipped, full image inside */
.project-hero-card {
    position: relative;
    width: 100%;
    height: 75vh;
    border-radius: 24px;
    overflow: hidden;
}

/* main hero image fills the card */
.project-hero-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

/* dark gradient overlay — heavier on left so text is readable */
.project-hero-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(
        to right,
        rgba(0,0,0,0.75) 0%,
        rgba(0,0,0,0.3) 60%,
        rgba(0,0,0,0.05) 100%
    );
}

/* text block — top left of the card */
.project-hero-content {
    position: absolute;
    bottom: 30px;
    left: 50px;
    z-index: 2;
    color: #fff;
    max-width: 800px;
}

/* small category label above title */
.project-hero-category {
    font-size: 11px;
    letter-spacing: 3px;
    color: var(--primary-color);
    margin-bottom: 16px;
    text-transform: uppercase;
}

.project-hero-title {
    font-size: clamp(42px, 6vw, 80px);
    font-weight: 400;
    line-height: 1;
    margin-bottom: 20px;
}

.project-hero-desc {
    font-size: 15px;
    line-height: 1.8;
    color: rgba(255,255,255,0.75);
    margin-bottom: 30px;
    max-width: 400px;
}

/* horizontally scrollable thumbnail strip */
.project-hero-thumbs {
    display: flex;
    gap: 10px;
    overflow-x: auto;
    scrollbar-width: none; /* hide scrollbar Firefox */
    padding-bottom: 4px;
    max-width: 100%;
}

.project-hero-thumbs::-webkit-scrollbar {
    display: none; /* hide scrollbar Chrome/Safari */
}

.project-hero-thumbs img {
    width: 280px;
    height: 180px;
    object-fit: cover;
    border-radius: 8px;
    flex-shrink: 0; /* don't squish, just scroll */
    opacity: 0.7;
    border: 2px solid transparent;
    cursor: pointer;
    transition: opacity 0.3s ease, border-color 0.3s ease;
}

.project-hero-thumbs img:hover {
    opacity: 1;
    border-color: var(--primary-color);
}

/* =========================================
   THUMBNAIL ARROWS
========================================= */
.thumbs-wrapper {
    position: relative;
    display: flex;
    align-items: center;
}

.thumb-arrow {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    z-index: 10;

    background: rgba(255, 255, 255, 0.3);
    border: none;
    color: #fff;

    width: 28px;
    height: 52px;
    border-radius: 4px;

    font-size: 24px;
    cursor: pointer;

    display: flex;
    align-items: center;
    justify-content: center;

    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);

    transition: background 0.2s ease, box-shadow 0.2s ease;
}

.thumb-arrow:hover {
    background: rgba(255, 255, 255, 0.5);
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.4);
}

.thumb-prev {
    left: 0;
    border-radius: 0 4px 4px 0; /* flat on left, rounded on right */
}

.thumb-next {
    right: 0;
    border-radius: 4px 0 0 4px; /* rounded on left, flat on right */
}


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

.portfolio-gallery {
    padding: 40px 60px 200px;
    background: transparent;
}

.gallery-grid {
    columns: 4;
    column-gap: 18px;
}

.gallery-grid img {
    width: 100%;
    margin-bottom: 18px;
    border-radius: 12px;
    display: block;
    break-inside: avoid;
    transition: 0.7s ease;
    cursor: pointer;
}

.gallery-grid img:hover {
    transform: scale(1.02);
    opacity: 0.9;
}

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

.lightbox {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.95);
    z-index: 99999;
    display: flex;
    align-items: center;
    justify-content: center;

    opacity: 0;
    visibility: hidden;
    transition: opacity 0.4s ease, visibility 0.4s ease;
}

.lightbox.lightbox-open {
    opacity: 1;
    visibility: visible;
}

.lightbox-img {
    max-width: 88vw;
    max-height: 85vh;
    object-fit: contain;
    border-radius: 8px;
}

.lightbox-close {
    position: absolute;
    top: 24px;
    right: 32px;
    background: none;
    border: none;
    color: #fff;
    font-size: 24px;
    cursor: pointer;
    opacity: 0.7;
    transition: opacity 0.2s ease, transform 0.2s ease;
}

.lightbox-close:hover {
    opacity: 1;
    transform: rotate(90deg);
}

.lightbox-prev,
.lightbox-next {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    color: #fff;
    font-size: 32px;
    width: 50px;
    height: 50px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background 0.2s ease;
}

.lightbox-prev:hover,
.lightbox-next:hover {
    background: rgba(255, 255, 255, 0.2);
}

.lightbox-prev { left: 24px; }
.lightbox-next { right: 24px; }

/* =========================================
   RESPONSIVE — 1100px
========================================= */

@media(max-width: 1100px) {

    .project-hero {
        padding: 100px 30px 30px;
    }

    .project-hero-card {
        height: 70vh;
    }

    .project-hero-thumbs img {
        width: 200px;
        height: 130px;
    }

    .gallery-grid {
        columns: 3;
    }

    .portfolio-gallery {
        padding: 30px 30px 180px;
    }
}


/* =========================================
   RESPONSIVE — 768px
========================================= */

@media(max-width: 768px) {

    .project-hero {
        padding: 90px 16px 24px;
    }

    .project-hero-card {
        height: 75vh;
        border-radius: 16px;
    }

    .project-hero-content {
        bottom: 24px; /* was top:30px — fixed */
        left: 24px;
        right: 24px;
        max-width: 100%;
    }

    .project-hero-title {
        font-size: clamp(28px, 8vw, 48px);
    }

    .project-hero-desc {
        font-size: 14px;
        margin-bottom: 20px;
    }

    .project-hero-thumbs img {
        width: 140px;  /* scaled down but still usable */
        height: 90px;
    }

    .thumb-arrow {
        height: 90px; /* match thumb height */
    }

    .gallery-grid {
        columns: 2;
        column-gap: 12px;
    }

    .gallery-grid img {
        margin-bottom: 12px;
        border-radius: 8px;
    }

    .portfolio-gallery {
        padding: 24px 16px 200px;
    }
}


/* =========================================
   RESPONSIVE — 480px
========================================= */

@media(max-width: 480px) {

    .project-hero {
        padding: 80px 10px 16px;
    }

    .project-hero-card {
        height: 50vh;
        border-radius: 12px;
    }

    .project-hero-content {
        bottom: 20px;
        left: 16px;
        right: 16px;
    }

    .project-hero-desc {
        display: none; /* hides desc on very small screens to save space */
    }

    .project-hero-thumbs img {
        width: 110px;
        height: 72px;
    }

    .thumb-arrow {
        height: 72px; /* match thumb height */
    }

    .gallery-grid {
        columns: 1;
    }

    .portfolio-gallery {
        padding: 30px 30px 80px;
    }
}