/* ==========================================================
   FFSFBA Gallery
   Version 1.0
   ========================================================== */

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    background: #f5f5f5;
    font-family: system-ui, Arial, sans-serif;
    color: #333;
}

header {
    background: #1f4d75;
    color: white;
    text-align: center;
    padding: 32px;
}

header h1 {
    margin: 0;
}

header p {
    margin-top: 8px;
    opacity: .85;
}

main {
    max-width: 1500px;
    margin: auto;
    padding: 30px;
}

h2 {
    margin-bottom: 24px;
}

/* ---------- Gallery Grid ---------- */

#gallery-grid {

    display: grid;

    grid-template-columns:
        repeat(auto-fit, minmax(240px,1fr));

    gap: 22px;

}

/* ---------- Photo Card ---------- */

.photo {

    background: white;

    border-radius: 14px;

    overflow: hidden;

    box-shadow: 0 4px 14px rgba(0,0,0,.12);

    transition: .25s;

}

.photo:hover {

    transform: translateY(-6px);

    box-shadow: 0 10px 22px rgba(0,0,0,.20);

}

.photo img {

    display:block;

    width:100%;

    height:auto;

}

/* ---------- Caption ---------- */

.caption {

    padding:14px;

}

.caption h3 {

    margin:0 0 6px;

    font-size:17px;

}

.caption p {

    margin:0;

    color:#666;

    line-height:1.35;

}

/* ---------- Loading ---------- */

.loading {

    grid-column:1/-1;

    text-align:center;

    padding:60px;

    font-size:22px;

    color:#666;

}





/* ==================================================
   FULL-SCREEN LIGHTBOX
   ================================================== */

#lightbox {
    display: none;

    position: fixed;

    inset: 0;

    z-index: 999999;

    background: rgba(0, 0, 0, 0.96);

    align-items: center;

    justify-content: center;

    width: 100%;

    height: 100%;
}


#lightbox.active {
    display: flex;
}


/* Prevent the page behind the lightbox from scrolling */

body.lightbox-open {
    overflow: hidden;
}


/* Main lightbox content */

#lightbox-content {

    display: flex;

    flex-direction: column;

    align-items: center;

    justify-content: center;

    width: 100%;

    height: 100%;

    padding: 50px 80px;

    box-sizing: border-box;

}


/* Large image */

#lightbox-image {

    max-width: 100%;

    max-height: calc(100vh - 150px);

    width: auto;

    height: auto;

    object-fit: contain;

    box-shadow:
        0 5px 30px rgba(0,0,0,.5);

}


/* Caption */

#lightbox-caption {

    max-width: 900px;

    margin-top: 15px;

    text-align: center;

    color: white;

}


#lightbox-title {

    font-size: 20px;

    font-weight: bold;

    margin-bottom: 6px;

}


#lightbox-description {

    font-size: 15px;

    line-height: 1.4;

    opacity: .85;

}


/* Buttons */

.lightbox-button {

    position: absolute;

    z-index: 10;

    border: none;

    background: rgba(0,0,0,.45);

    color: white;

    cursor: pointer;

    width: 55px;

    height: 55px;

    border-radius: 50%;

    font-size: 38px;

    line-height: 45px;

    text-align: center;

    transition:
        background .2s ease,
        transform .2s ease;

}


.lightbox-button:hover {

    background: rgba(255,255,255,.25);

    transform: scale(1.08);

}


/* Close */

#lightbox-close {

    top: 20px;

    right: 25px;

    font-size: 38px;

}


/* Previous / next */

.lightbox-nav {

    top: 50%;

    transform: translateY(-50%);

}


.lightbox-nav:hover {

    transform:
        translateY(-50%)
        scale(1.08);

}


#lightbox-prev {

    left: 20px;

}


#lightbox-next {

    right: 20px;

}


/* Mobile */

@media (max-width: 650px) {

    #lightbox-content {

        padding:
            45px 15px 30px;

    }


    #lightbox-image {

        max-height:
            calc(100vh - 130px);

    }


    #lightbox-caption {

        max-width: 90%;

    }


    #lightbox-title {

        font-size: 17px;

    }


    #lightbox-description {

        font-size: 14px;

    }


    .lightbox-button {

        width: 45px;

        height: 45px;

        font-size: 30px;

    }


    #lightbox-prev {

        left: 8px;

    }


    #lightbox-next {

        right: 8px;

    }


    #lightbox-close {

        top: 10px;

        right: 10px;

    }

}