/* =========================================================
   Portfolio Mosaic (page-portfolio.php only)
   - One big mosaic across ALL portfolio photos
   - Uses CSS multi-column masonry (no row-span JS)
   - This guarantees: tile height == <picture>/<img> height (no extra blank space)
========================================================= */

/* Full-width content wrapper (avoid .container max-width) */
.portfolio-page .rf-portfolio-wide {
    width: 100%;
    max-width: none;
    margin: 0;
    padding-left: clamp(16px, 3vw, 84px);
    padding-right: clamp(16px, 3vw, 84px);
}

/* Slight breathing room under hero */
.portfolio-page .portfolio-content {
    padding-top: clamp(21px, 3vw, 42px);
    padding-bottom: clamp(32px, 4vw, 55px);
}

/* -------------------------
   Mosaic (CSS columns masonry)
--------------------------*/
.rf-mosaic {
    --rf-gap: 12px;
    column-gap: var(--rf-gap);
    column-width: 240px; /* browser chooses column-count */
}

@media (max-width: 640px) {
    .rf-mosaic {
        --rf-gap: 10px;
        column-width: 170px;
    }
}

@media (min-width: 1024px) {
    .rf-mosaic {
        --rf-gap: 14px;
        column-width: 260px;
    }
}

@media (min-width: 1440px) {
    .rf-mosaic {
        column-width: 290px;
    }
}

.rf-mosaic-tile {
    display: inline-block;
    width: 100%;
    margin: 0 0 var(--rf-gap);
    position: relative;
    /* prevent splitting across columns */
    break-inside: avoid;
    -webkit-column-break-inside: avoid;
    page-break-inside: avoid;
    overflow: hidden;
    border-radius: 16px;
    background: rgba(15, 28, 44, .06);
    box-shadow: 0 10px 24px rgba(0,0,0,.06);
    transform: translateZ(0);
}

    .rf-mosaic-tile:focus-visible {
        outline: 2px solid rgba(30, 64, 175, .6);
        outline-offset: 3px;
    }

    .rf-mosaic-tile picture,
    .rf-mosaic-tile img {
        width: 100%;
        height: auto;
        display: block;
    }

    .rf-mosaic-tile img {
        transform: none;
        transition: transform .35s ease;
    }

    .rf-mosaic-tile:hover img {
        transform: scale(1.04);
    }

/* -------------------------
   Lightbox (NO ZOOM)
--------------------------*/
.rf-lightbox {
    position: fixed;
    inset: 0;
    z-index: 99999;
    display: none;
}

    .rf-lightbox.is-open {
        display: block;
    }

.rf-lightbox-backdrop {
    position: absolute;
    inset: 0;
    background: rgba(0,0,0,.72);
}

.rf-lightbox-dialog {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 18px;
}

.rf-lightbox-panel {
    width: min(1280px, 96vw);
    height: min(860px, 92vh);
    background: rgba(10, 12, 16, .92);
    border: 1px solid rgba(255,255,255,.10);
    border-radius: 18px;
    box-shadow: 0 22px 70px rgba(0,0,0,.45);
    overflow: hidden;
    position: relative;
    display: flex;
    flex-direction: column;
}

.rf-lightbox-toolbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 10px 12px;
    gap: 10px;
    border-bottom: 1px solid rgba(255,255,255,.10);
}

.rf-lightbox-caption {
    font-size: 13px;
    line-height: 1.35;
    color: rgba(255,255,255,.82);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.rf-lightbox-actions {
    display: flex;
    gap: 8px;
    flex: 0 0 auto;
}

.rf-lightbox-btn {
    appearance: none;
    border: 1px solid rgba(255,255,255,.14);
    background: rgba(255,255,255,.08);
    color: #fff;
    border-radius: 999px;
    padding: 8px 10px;
    font-size: 13px;
    line-height: 1;
    cursor: pointer;
}

    .rf-lightbox-btn:hover {
        background: rgba(255,255,255,.12);
    }

    .rf-lightbox-btn:focus-visible {
        outline: 2px solid rgba(255,255,255,.5);
        outline-offset: 2px;
    }

.rf-lightbox-stage {
    position: relative;
    flex: 1 1 auto;
    overflow: auto;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 12px;
}

    .rf-lightbox-stage img {
        max-width: 100%;
        max-height: 100%;
        display: block;
        cursor: default;
    }

.rf-lightbox-nav {
    position: absolute;
    inset: 0;
    pointer-events: none;
}

    .rf-lightbox-nav button {
        pointer-events: auto;
        position: absolute;
        top: 50%;
        transform: translateY(-50%);
        width: 44px;
        height: 44px;
        border-radius: 999px;
        border: 1px solid rgba(255,255,255,.14);
        background: rgba(0,0,0,.35);
        color: #fff;
        cursor: pointer;
    }

        .rf-lightbox-nav button:hover {
            background: rgba(0,0,0,.55);
        }

.rf-lightbox-prev {
    left: 10px;
}

.rf-lightbox-next {
    right: 10px;
}

@media (max-width: 540px) {
    .rf-lightbox-panel {
        width: 96vw;
        height: 92vh;
        border-radius: 14px;
    }

    .rf-lightbox-prev {
        left: 6px;
    }

    .rf-lightbox-next {
        right: 6px;
    }

    .rf-lightbox-nav button {
        width: 40px;
        height: 40px;
    }
}