/* Reset y configuración base */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Montserrat', sans-serif;
    background: linear-gradient(135deg, #ffffff 0%, #f8f9fa 100%);
    color: #1A1A1A;
    min-height: 100vh;
    overflow-x: hidden;
}

/* Header mejorado */
.header {
    background: linear-gradient(135deg, #1C43AE 0%, #00BEE8 100%);
    padding: 2rem 0;
    text-align: center;
    box-shadow: 0 8px 32px rgba(28, 67, 174, 0.3);
    position: relative;
    overflow: hidden;
}

.header::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.1) 0%, transparent 70%);
    animation: rotate 20s linear infinite;
}

@keyframes rotate {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.header h1 {
    color: white;
    font-size: 3rem;
    font-weight: 800;
    font-family: 'Shadows Into Light', cursive;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
    position: relative;
    z-index: 1;
    animation: glow 2s ease-in-out infinite alternate;
    margin-bottom: 10px;
}

@keyframes glow {
    from { text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3), 0 0 20px rgba(255, 255, 255, 0.2); }
    to { text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3), 0 0 30px rgba(255, 255, 255, 0.4); }
}

/* Contenedor principal */
.gallery-container {
    max-width: 1800px; 
    margin: 0 auto; 
    padding: 4rem 2rem; 
}

/* Grid de la galería */
.gallery-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr); /* 3 columnas para cards más anchas */
    gap: 3rem; /* más espacio entre cards */
}

/* Card */
.gallery-card {
    background: white;
    border-radius: 15px;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.1);
    overflow: hidden;
    transition: transform 0.3s ease;
    padding: 1rem;
    height: 450px; 
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}

.gallery-card img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 10px;
}

.gallery-card:hover {
    transform: translateY(-8px) scale(1.03);
}

/* Responsive */
@media (max-width: 1200px) {
    .gallery-grid {
        grid-template-columns: repeat(2, 1fr); /* 2 columnas en pantallas medianas */
        gap: 2.5rem;
    }
}

@media (max-width: 768px) {
    .gallery-grid {
        grid-template-columns: 1fr; /* 1 columna en móviles */
        gap: 1.5rem;
    }
    
    .gallery-card {
        height: 300px;
    }
}

.artwork-detail {
        background:white;
        min-height: 100vh;
    }
    .loading {
        display: flex;
        justify-content: center;
        align-items: center;
        height: 100vh;
    }
    .spinner {
        border: 4px solid #f3f3f3;
        border-top: 4px solid #3498db;
        border-radius: 50%;
        width: 50px;
        height: 50px;
        animation: spin 1s linear infinite;
    }
    @keyframes spin {
        0% { transform: rotate(0deg); }
        100% { transform: rotate(360deg); }
    }

        .footer-custom {
    background: linear-gradient(135deg, #1C43AE 0%, #00BEE8 100%);
    padding: 2rem 0;
    padding-top: 1.5rem;   /* py-6 */
    padding-bottom: 1.5rem; /* py-6 */
    padding-left: 2rem;    /* px-8 */
    padding-right: 2rem;   /* px-8 */
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06); /* shadow-md */
}
 .lightbox {
            display: none;
            position: fixed;
            z-index: 9999;
            left: 0;
            top: 0;
            width: 100%;
            height: 100%;
            background-color: rgba(0, 0, 0, 0.9);
            backdrop-filter: blur(5px);
        }
        
        .lightbox-content {
            position: absolute;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
            max-width: 90%;
            max-height: 90%;
            text-align: center;
        }
        
        .lightbox-image {
            max-width: 100%;
            max-height: 80vh;
            object-fit: contain;
            border-radius: 12px;
            box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
        }
        
        .lightbox-close {
            position: absolute;
            top: 20px;
            right: 35px;
            color: #ffffff;
            font-size: 40px;
            font-weight: bold;
            cursor: pointer;
            z-index: 10000;
            transition: color 0.3s ease;
        }
        
        .lightbox-close:hover {
            color: #ff6b6b;
        }
        
        .lightbox-nav {
            position: absolute;
            top: 50%;
            transform: translateY(-50%);
            background: rgba(255, 255, 255, 0.2);
            color: white;
            border: none;
            font-size: 24px;
            padding: 15px 20px;
            cursor: pointer;
            border-radius: 50%;
            transition: all 0.3s ease;
            backdrop-filter: blur(10px);
        }
        
        .lightbox-nav:hover {
            background: rgba(255, 255, 255, 0.3);
            transform: translateY(-50%) scale(1.1);
        }
        
        .lightbox-prev {
            left: 30px;
        }
        
        .lightbox-next {
            right: 30px;
        }
        
        .lightbox-caption {
            color: white;
            text-align: center;
            margin-top: 20px;
            font-size: 18px;
            font-weight: 500;
        }
        
        .lightbox-counter {
            color: rgba(255, 255, 255, 0.8);
            font-size: 14px;
            margin-top: 10px;
        }
        
        .image-thumbnail {
            cursor: pointer;
            transition: all 0.3s ease;
            border: 3px solid transparent;
        }
        
        .image-thumbnail:hover {
            transform: scale(1.02);
            border-color: #3b82f6;
            box-shadow: 0 10px 25px -5px rgba(59, 130, 246, 0.3);
        }