/* ─── Base ─────────────────────────────────── */
html {
    scroll-behavior: smooth;
}

/* ─── Lightbox ─────────────────────────────── */
#lightbox {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.92);
    z-index: 1000;
    align-items: center;
    justify-content: center;
}

#lightbox.active {
    display: flex;
}

#lightbox-img {
    max-width: 90vw;
    max-height: 85vh;
    object-fit: contain;
    border-radius: 8px;
}

#lightbox-prev,
#lightbox-next {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background: rgba(255, 255, 255, 0.1);
    border: none;
    color: white;
    font-size: 2rem;
    padding: 12px 18px;
    cursor: pointer;
    border-radius: 8px;
    transition: background 0.2s;
}

#lightbox-prev:hover,
#lightbox-next:hover {
    background: rgba(255, 255, 255, 0.25);
}

#lightbox-prev { left: 16px; }
#lightbox-next { right: 16px; }

#lightbox-close {
    position: absolute;
    top: 16px;
    right: 20px;
    background: none;
    border: none;
    color: white;
    font-size: 2rem;
    cursor: pointer;
    line-height: 1;
}