* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    color: #333;
}

header {
    text-align: center;
    padding: 3rem 1rem;
    color: white;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.3);
}

header h1 {
    font-size: 2.5rem;
    margin-bottom: 0.5rem;
}

header p {
    font-size: 1.2rem;
    opacity: 0.9;
}

main {
    max-width: 1400px;
    margin: 0 auto;
    padding: 2rem;
}

.gallery-container {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 1.5rem;
    margin-bottom: 3rem;
}

.gallery-item {
    position: relative;
    overflow: hidden;
    border-radius: 12px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.2);
    cursor: pointer;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    background: white;
}

.gallery-item:hover {
    transform: translateY(-8px);
    box-shadow: 0 8px 25px rgba(0,0,0,0.3);
}

.gallery-item img {
    width: 100%;
    height: 300px;
    object-fit: cover;
    display: block;
    transition: transform 0.3s ease;
}

.gallery-item:hover img {
    transform: scale(1.1);
}

.gallery-item .caption {
    padding: 1rem;
    background: white;
    font-size: 0.9rem;
    color: #555;
    text-align: center;
}

/* Lightbox */
.lightbox {
    display: none;
    position: fixed;
    z-index: 1000;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0,0,0,0.95);
    justify-content: center;
    align-items: center;
}

.lightbox.active {
    display: flex;
}

.lightbox-content {
    max-width: 90%;
    max-height: 85vh;
    object-fit: contain;
    border-radius: 8px;
    animation: zoomIn 0.3s ease;
}

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

.lightbox-caption {
    position: absolute;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    color: white;
    font-size: 1.1rem;
    text-align: center;
    padding: 1rem 2rem;
    background: rgba(0,0,0,0.6);
    border-radius: 8px;
    max-width: 80%;
}

.close {
    position: absolute;
    top: 30px;
    right: 50px;
    color: white;
    font-size: 50px;
    font-weight: bold;
    cursor: pointer;
    transition: color 0.3s ease;
    z-index: 1001;
}

.close:hover {
    color: #667eea;
}

.prev, .next {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background: rgba(255,255,255,0.2);
    color: white;
    border: none;
    font-size: 2rem;
    padding: 1rem 1.5rem;
    cursor: pointer;
    border-radius: 8px;
    transition: background 0.3s ease;
    z-index: 1001;
}

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

.prev {
    left: 30px;
}

.next {
    right: 30px;
}

footer {
    text-align: center;
    padding: 2rem;
    color: white;
    font-size: 0.9rem;
    opacity: 0.8;
}

/* Loading Animation */
.loading {
    text-align: center;
    color: white;
    font-size: 1.5rem;
    padding: 3rem;
}

/* Responsive */
@media (max-width: 768px) {
    header h1 {
        font-size: 2rem;
    }

    .gallery-container {
        grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
        gap: 1rem;
    }

    .prev, .next {
        font-size: 1.5rem;
        padding: 0.5rem 1rem;
    }

    .prev {
        left: 10px;
    }

    .next {
        right: 10px;
    }

    .close {
        top: 15px;
        right: 20px;
        font-size: 35px;
    }
}