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

body {
    font-family: Arial, sans-serif;
    background: linear-gradient(135deg, #3498db, #2ecc71);
    color: #fff;
    height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
}

.welcome-container {
    text-align: center;
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
}

.welcome-title {
    font-size: 2.5em;
    margin-bottom: 40px;
}

.image-gallery {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    grid-gap: 15px; /* Menggantikan 'gap' untuk keserasian lama */
}

.image-item {
    overflow: hidden;
    border-radius: 20px;
}

.image-item img {
    width: 100%;
    height: auto;
    transition: transform 0.3s ease;
}

.image-item:hover img {
    transform: scale(1.1); /* Zoom-in effect */
}

/* Responsive for tablet - 2 columns */
@media (max-width: 768px) {
    .image-gallery {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* Responsive for mobile - 1 column */
@media (max-width: 480px) {
    .image-gallery {
        grid-template-columns: 1fr;
    }
}