/* PEM Art Wall — Mosaic Frontend Styles */

/* ---------------------------------------------------------------
   Container
--------------------------------------------------------------- */
.paw-art-wall {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 16px;
    box-sizing: border-box;
    font-family: inherit;
}

/* ---------------------------------------------------------------
   Mosaic Grid
   JS will compute tile sizes and inject inline styles per tile
--------------------------------------------------------------- */
.paw-mosaic-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 4px;
    width: 100%;
    min-height: 200px;
    position: relative;
}

/* Individual tile */
.paw-tile {
    position: relative;
    overflow: hidden;
    cursor: default;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    border-radius: 3px;
    /* Size set dynamically by JS */
}

.paw-tile:focus-within,
.paw-tile:hover {
    transform: scale(1.05);
    z-index: 2;
    box-shadow: 0 4px 20px rgba(0,0,0,0.25);
}

/* Image inside tile */
.paw-tile img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    /* Default: greyscale */
    filter: grayscale(100%) brightness(0.9);
    transition: filter 0.4s ease;
}

/* Highlighted (blue) tile */
.paw-tile.paw-highlight img {
    filter: grayscale(100%) sepia(60%) hue-rotate(180deg) saturate(200%) brightness(0.75);
}

/* Hover: reveal colour briefly */
.paw-tile:hover img {
    filter: grayscale(0%) brightness(1);
}

/* Tooltip on hover */
.paw-tile-tooltip {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: linear-gradient(to top, rgba(10,24,50,0.85) 0%, transparent 100%);
    color: #fff;
    font-size: 0.72rem;
    padding: 12px 6px 5px;
    opacity: 0;
    transform: translateY(4px);
    transition: opacity 0.25s ease, transform 0.25s ease;
    pointer-events: none;
    text-align: center;
    line-height: 1.3;
}

.paw-tile:hover .paw-tile-tooltip,
.paw-tile:focus-within .paw-tile-tooltip {
    opacity: 1;
    transform: translateY(0);
}

/* ---------------------------------------------------------------
   Counter
--------------------------------------------------------------- */
.paw-mosaic-counter {
    text-align: center;
    margin-top: 16px;
    font-size: 0.9rem;
    color: #555;
    letter-spacing: 0.03em;
}

.paw-mosaic-counter #paw-count {
    font-weight: 700;
    font-size: 1.1rem;
    color: #1a2a4a;
}

/* ---------------------------------------------------------------
   Empty state
--------------------------------------------------------------- */
.paw-empty {
    text-align: center;
    color: #888;
    font-style: italic;
    padding: 60px 20px;
    width: 100%;
}

/* ---------------------------------------------------------------
   Text Reveal Overlay (canvas-based, positioned over grid)
--------------------------------------------------------------- */
.paw-reveal-canvas {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 3;
    opacity: 0;
    transition: opacity 1s ease;
}

.paw-reveal-canvas.paw-reveal-active {
    opacity: 1;
}

/* ---------------------------------------------------------------
   Tile entry animation
--------------------------------------------------------------- */
@keyframes paw-tile-in {
    from {
        opacity: 0;
        transform: scale(0.6);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

.paw-tile {
    animation: paw-tile-in 0.4s ease both;
}

@media (max-width: 600px) {
    .paw-mosaic-grid {
        gap: 3px;
    }

    .paw-tile-tooltip {
        font-size: 0.65rem;
    }

    .paw-mosaic-counter {
        font-size: 0.82rem;
    }
}

@media (max-width: 380px) {
    .paw-mosaic-grid {
        gap: 2px;
    }
}