/* General */
body {
    margin: 0;
    font-family: 'Rubik', sans-serif;
    background: linear-gradient(135deg, #1e3c72, #2a5298);
    color: #fff;
}

/* Header */
header {
    text-align: center;
    padding: 2rem;
    background-color: rgba(0,0,0,0.3);
    backdrop-filter: blur(10px);
}

header h1 {
    margin: 0;
    font-size: 3rem;
    text-shadow: 0 2px 8px rgba(0,0,0,0.7);
}

header p {
    margin-top: 0.5rem;
    font-size: 1.2rem;
    color: #ccc;
}

/* Gallery Grid */
.gallery {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 1.5rem;
    padding: 2rem;
}

.gallery img {
    width: 100%;
    border-radius: 16px;
    box-shadow: 0 8px 20px rgba(0,0,0,0.6);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    cursor: pointer;
}

.gallery img:hover {
    transform: scale(1.08);
    box-shadow: 0 12px 32px rgba(0,0,0,0.8);
}

/* Footer */
footer {
    text-align: center;
    padding: 1.5rem;
    background-color: rgba(0,0,0,0.25);
    font-size: 0.9rem;
    color: #bbb;
}

/* Lightbox */
.lightbox {
    display: none;
    position: fixed;
    z-index: 1000;
    left:0; top:0;
    width:100%; height:100%;
    background: rgba(0,0,0,0.9);
    justify-content: center;
    align-items: center;
}

.lightbox-img {
    max-width: 90%;
    max-height: 90%;
    border-radius: 12px;
    box-shadow: 0 0 40px rgba(0,0,0,0.8);
}

.lightbox .close {
    position: absolute;
    top: 2rem;
    right: 2rem;
    font-size: 3rem;
    cursor: pointer;
    color: #fff;
    transition: color 0.2s ease;
}

.lightbox .close:hover {
    color: #f00;
}