/* ===================================
   Photo Viewer - Custom Lightbox
   Com suporte a zoom touch (iOS/Android)
   =================================== */

/* Overlay do modal */
.photo-viewer-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.95);
    z-index: 10000;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, visibility 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

.photo-viewer-overlay.active {
    opacity: 1;
    visibility: visible;
}

/* Container da imagem */
.photo-viewer-container {
    position: relative;
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

/* Wrapper da imagem (para transformações) */
.photo-viewer-wrapper {
    position: relative;
    max-width: 90vw;
    max-height: 90vh;
    transform-origin: center center;
    transition: transform 0.2s ease-out;
    touch-action: none;
    cursor: grab;
}

.photo-viewer-wrapper.grabbing {
    cursor: grabbing;
    transition: none;
}

.photo-viewer-wrapper.zoomed {
    cursor: move;
}

/* Imagem principal */
.photo-viewer-image {
    max-width: 100%;
    max-height: 90vh;
    width: auto;
    height: auto;
    object-fit: contain;
    border-radius: 8px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
    user-select: none;
    -webkit-user-select: none;
    pointer-events: none;
    opacity: 0;
    transform: scale(0.9);
    transition: opacity 0.3s ease, transform 0.3s ease;
}

.photo-viewer-overlay.active .photo-viewer-image {
    opacity: 1;
    transform: scale(1);
}

/* Loading spinner */
.photo-viewer-loader {
    position: absolute;
    width: 40px;
    height: 40px;
    border: 3px solid rgba(255, 255, 255, 0.2);
    border-top-color: var(--color-gold, #d4af37);
    border-radius: 50%;
    animation: pv-spin 1s linear infinite;
}

@keyframes pv-spin {
    to { transform: rotate(360deg); }
}

/* Botão de fechar */
.photo-viewer-close {
    position: absolute;
    top: 20px;
    right: 20px;
    width: 50px;
    height: 50px;
    background: rgba(255, 255, 255, 0.1);
    border: none;
    border-radius: 50%;
    color: #fff;
    font-size: 24px;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10;
}

.photo-viewer-close:hover {
    background: var(--color-gold, #d4af37);
    transform: scale(1.1);
}

/* Navegação */
.photo-viewer-nav {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 50px;
    height: 50px;
    background: rgba(255, 255, 255, 0.1);
    border: none;
    border-radius: 50%;
    color: #fff;
    font-size: 20px;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10;
}

.photo-viewer-nav:hover {
    background: var(--color-gold, #d4af37);
    transform: translateY(-50%) scale(1.1);
}

.photo-viewer-prev {
    left: 20px;
}

.photo-viewer-next {
    right: 20px;
}

.photo-viewer-nav:disabled {
    opacity: 0.3;
    cursor: not-allowed;
}

.photo-viewer-nav:disabled:hover {
    background: rgba(255, 255, 255, 0.1);
    transform: translateY(-50%);
}

/* Info da imagem (título e categoria) */
.photo-viewer-info {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    text-align: center;
    z-index: 10;
    background: rgba(0, 0, 0, 0.6);
    padding: 15px 30px;
    border-radius: 30px;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

.photo-viewer-title {
    font-size: 18px;
    font-weight: 600;
    color: var(--color-gold, #d4af37);
    margin: 0 0 5px 0;
}

.photo-viewer-category {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.7);
    margin: 0;
}

/* Contador de imagens */
.photo-viewer-counter {
    position: absolute;
    top: 25px;
    left: 50%;
    transform: translateX(-50%);
    font-size: 14px;
    color: rgba(255, 255, 255, 0.7);
    z-index: 10;
}

/* Dica de zoom */
.photo-viewer-hint {
    position: absolute;
    bottom: 100px;
    left: 50%;
    transform: translateX(-50%);
    font-size: 13px;
    color: rgba(255, 255, 255, 0.5);
    z-index: 10;
    opacity: 1;
    transition: opacity 0.5s ease;
    pointer-events: none;
}

.photo-viewer-hint.hidden {
    opacity: 0;
}

/* ===========================
   Responsivo para Mobile
   =========================== */
@media (max-width: 768px) {
    .photo-viewer-close {
        top: 15px;
        right: 15px;
        width: 44px;
        height: 44px;
        font-size: 20px;
    }

    .photo-viewer-nav {
        width: 44px;
        height: 44px;
        font-size: 18px;
    }

    .photo-viewer-prev {
        left: 10px;
    }

    .photo-viewer-next {
        right: 10px;
    }

    .photo-viewer-info {
        bottom: 20px;
        padding: 12px 20px;
        max-width: 80%;
    }

    .photo-viewer-title {
        font-size: 16px;
    }

    .photo-viewer-category {
        font-size: 13px;
    }

    .photo-viewer-wrapper {
        max-width: 95vw;
        max-height: 85vh;
    }

    .photo-viewer-image {
        max-height: 85vh;
        border-radius: 4px;
    }
}

/* Esconder navegação em telas muito pequenas (usar swipe) */
@media (max-width: 480px) {
    .photo-viewer-nav {
        display: none;
    }

    .photo-viewer-hint {
        bottom: 80px;
        font-size: 12px;
    }
}

/* Desativar scroll do body quando modal aberto */
body.photo-viewer-open {
    overflow: hidden;
    touch-action: none;
}