/* ===========================
   ライトボックス（画像全画面表示）
   =========================== */

.lightbox {
    display: none;
    position: fixed;
    z-index: 10000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.95);
    overflow: hidden;
}

.lightbox.active {
    display: flex;
    align-items: center;
    justify-content: center;
}

.lightbox-content {
    max-width: 90%;
    max-height: 90vh;
    object-fit: contain;
    animation: zoomIn 0.3s ease;
}

@keyframes zoomIn {
    from {
        transform: scale(0.8);
        opacity: 0;
    }
    to {
        transform: scale(1);
        opacity: 1;
    }
}

.lightbox-close {
    position: absolute;
    top: 20px;
    right: 35px;
    color: #fff;
    font-size: 50px;
    font-weight: bold;
    cursor: pointer;
    transition: 0.3s;
    z-index: 10001;
}

.lightbox-close:hover,
.lightbox-close:focus {
    color: #bbb;
}

.lightbox-caption {
    position: absolute;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    color: #fff;
    text-align: center;
    font-size: 18px;
    padding: 10px 20px;
    background: rgba(0, 0, 0, 0.6);
    border-radius: 8px;
    max-width: 80%;
}

/* 前へ・次へボタン */
.lightbox-prev,
.lightbox-next {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background-color: rgba(255, 255, 255, 0.2);
    color: white;
    border: none;
    font-size: 40px;
    padding: 16px 20px;
    cursor: pointer;
    transition: 0.3s;
    z-index: 10001;
    border-radius: 8px;
}

.lightbox-prev:hover,
.lightbox-next:hover {
    background-color: rgba(255, 255, 255, 0.4);
}

.lightbox-prev {
    left: 20px;
}

.lightbox-next {
    right: 20px;
}

/* クリッカブルな画像のスタイル */
.gallery-image,
.trainer-photo {
    cursor: pointer;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.gallery-image:hover,
.trainer-photo:hover {
    transform: scale(1.05);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.2);
}

/* レスポンシブ対応 */
@media (max-width: 768px) {
    .lightbox-close {
        top: 10px;
        right: 20px;
        font-size: 40px;
    }
    
    .lightbox-prev,
    .lightbox-next {
        font-size: 30px;
        padding: 12px 16px;
    }
    
    .lightbox-prev {
        left: 10px;
    }
    
    .lightbox-next {
        right: 10px;
    }
    
    .lightbox-caption {
        font-size: 14px;
        bottom: 10px;
        padding: 8px 16px;
    }
    
    .lightbox-content {
        max-width: 95%;
        max-height: 80vh;
    }
}