/* ==========================================================================
   Ficheiro: lightbox.css
   Lightbox da galeria da página de projeto (lightbox.js).
   Só variáveis do :root do style.css. Foco: regra global :focus-visible.
   ========================================================================== */

/* Imagem da galeria abrível: sinal de que se clica. */
.gallery-layout-item--zoom {
    cursor: zoom-in;
}

.gallery-layout-item--zoom img {
    transition: transform var(--transition-fast), opacity var(--transition-fast);
}

@media (hover: hover) {
    .gallery-layout-item--zoom:hover img {
        transform: scale(1.02);
        opacity: 0.92;
    }
}

/* Scroll da página bloqueado enquanto o lightbox está aberto. */
html.lightbox-open,
html.lightbox-open body {
    overflow: hidden;
}

.lightbox {
    position: fixed;
    inset: 0;
    z-index: var(--z-modal);
    background: color-mix(in srgb, var(--bg-color) 94%, transparent);
    -webkit-backdrop-filter: blur(6px);
    backdrop-filter: blur(6px);
    color: var(--text-color);
    font-family: "Oxanium", "Oxanium Fallback", sans-serif;
    overscroll-behavior: contain;
}

.lightbox[hidden] {
    display: none;
}

/* --- Ponteiro do rato ----------------------------------------------------
   O site esconde o cursor (cursor: none no body, o rasto de partículas faz
   de ponteiro) e o rasto fica por baixo do lightbox. Aqui repõe-se o
   ponteiro real, como no consent.css. */
.lightbox,
.lightbox * {
    cursor: auto;
}

.lightbox button {
    cursor: pointer;
}

/* --- Palco e slides -------------------------------------------------------- */
.lightbox__stage {
    position: absolute;
    inset: 0;
    overflow: hidden;
    /* O arrasto horizontal é do swipe; não há scroll para o browser tratar. */
    touch-action: none;
}

.lightbox__slide {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    box-sizing: border-box;
    padding: 5rem 6.5rem;
    will-change: transform, opacity;
}

.lightbox__media {
    display: block;
    max-width: 100%;
    max-height: 100%;
    width: auto;
    height: auto;
    /* Inteira, sem cortes (a galeria na página corta por aspect-ratio). */
    object-fit: contain;
    border-radius: 12px;
    -webkit-user-select: none;
    user-select: none;
}

video.lightbox__media {
    background: #000;
}

/* --- Barra de cima: contador e fechar --------------------------------------- */
.lightbox__counter {
    position: absolute;
    top: calc(1.25rem + env(safe-area-inset-top));
    left: calc(1.5rem + env(safe-area-inset-left));
    margin: 0;
    min-height: 48px;
    display: flex;
    align-items: center;
    font-size: var(--font-size-small);
    letter-spacing: 0.12em;
    color: var(--text-secondary-color);
    font-variant-numeric: tabular-nums;
    z-index: 1;
    pointer-events: none;
}

.lightbox__btn {
    position: absolute;
    z-index: 1;
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0;
    border: 1px solid var(--border-color-dark);
    border-radius: 50%;
    background: var(--bg-card-color);
    color: var(--text-color);
    transition: background-color var(--transition-fast), border-color var(--transition-fast);
    -webkit-tap-highlight-color: transparent;
}

.lightbox__btn svg {
    width: 20px;
    height: 20px;
    pointer-events: none;
}

.lightbox__btn[hidden] {
    display: none;
}

@media (hover: hover) {
    .lightbox__btn:hover {
        background: var(--bg-color);
        border-color: var(--text-secondary-color);
    }
}

.lightbox__close {
    top: calc(1.25rem + env(safe-area-inset-top));
    right: calc(1.5rem + env(safe-area-inset-right));
}

.lightbox__prev,
.lightbox__next {
    top: 50%;
    transform: translateY(-50%);
}

.lightbox__prev {
    left: calc(1.5rem + env(safe-area-inset-left));
}

.lightbox__next {
    right: calc(1.5rem + env(safe-area-inset-right));
}

/* --- Mobile: setas em baixo, na zona do polegar ---------------------------- */
@media (max-width: 768px) {
    .lightbox__slide {
        padding: calc(4.75rem + env(safe-area-inset-top)) 0.75rem calc(5.5rem + env(safe-area-inset-bottom));
    }

    .lightbox__media {
        border-radius: 8px;
    }

    .lightbox__counter {
        top: calc(0.75rem + env(safe-area-inset-top));
        left: calc(1rem + env(safe-area-inset-left));
    }

    .lightbox__close {
        top: calc(0.75rem + env(safe-area-inset-top));
        right: calc(1rem + env(safe-area-inset-right));
    }

    .lightbox__prev,
    .lightbox__next {
        top: auto;
        bottom: calc(1.25rem + env(safe-area-inset-bottom));
        transform: none;
    }

    .lightbox__prev {
        left: calc(50% - 48px - 1rem);
    }

    .lightbox__next {
        right: calc(50% - 48px - 1rem);
    }
}

@media (prefers-reduced-motion: reduce) {
    .gallery-layout-item--zoom img,
    .lightbox__btn {
        transition: none;
    }

    .gallery-layout-item--zoom:hover img {
        transform: none;
    }
}