* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}
html {
    font-size: 100%;
}
body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: #333;
    background: #fafafa;
}
.site-header {
    text-align: center;
    padding: 1rem 1rem;
    background: linear-gradient(135deg, #2c3e50, #4ca1af);
    color: #fff;
}
.site-header h1 {
    font-size: 2.5rem;
    margin-bottom: .4rem;
}
.tagline {
    font-size: 1.2rem;
    opacity: .8;
}
.content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 1rem;
}
.hero {
    display: flex;
    flex-direction: column;
    margin-bottom: 2rem;
}
.hero-img {
    width: 100%;
    height: auto;
    border-radius: .5rem;
    box-shadow: 0 4px 12px rgba(0,0,0,.15);
}
.hero-text {
    text-align: center;
    padding: 0 1rem;
}
.hero-text h2 {
    font-size: 2rem;
    margin-bottom: .5rem;
    color: #2c3e50;
}
.hero-text p {
    font-size: 1.1rem;
    max-width: 800px;
    margin: 0 auto;
}
.albums h2 {
    font-size: 1.8rem;
    margin-bottom: 1.5rem;
    text-align: center;
    color: #2c3e50;
}
.album-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 1.5rem;
}
.album-card {
    display: block;
    text-decoration: none;
    color: inherit;
    border-radius: .5rem;
    overflow: hidden;
    box-shadow: 0 2px 8px rgba(0,0,0,.1);
    transition: transform .2s, box-shadow .2s;
}
.album-card img {
    width: 100%;
    display: block;
}
.album-card span {
    display: block;
    padding: .8rem;
    text-align: center;
    font-weight: 600;
    background: #f8f8f8;
}
.album-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 6px 16px rgba(0,0,0,.2);
}
.site-footer {
    text-align: center;
    padding: 1rem;
    background: #2c3e50;
    color: #fff;
    font-size: .9rem;
}
.gallery {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 1.2rem;
    margin: 2rem 0;
}
.gallery-item {
    overflow: hidden;
    border-radius: .5rem;
    background: #eee;
    cursor: pointer;
}

.gallery-item img {
    width: 100%;
    height: auto;
    display: block;
}
.gallery-item.visible {
    transform: translateY(0);
    opacity: 1;
}
.album-header {
    text-align: center;
    margin-top: 1rem;
}
.album-header h2 {
    font-size: 2rem;
    margin-bottom: .4rem;
    color: #2c3e50;
}
.album-header p {
    font-size: 1.1rem;
    color: #555;
}
.album-nav {
    text-align: center;
    margin: 2rem 0;
}
.album-nav a {
    color: #4ca1af;
    text-decoration: none;
    font-weight: 600;
    border-bottom: 2px solid transparent;
    transition: border-color .2s;
}
.album-nav a:hover {
    border-color: #4ca1af;
}
.lightbox {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,.85);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    opacity: 0;
    visibility: hidden;
    transition: opacity .3s ease;
}
.lightbox.visible {
    opacity: 1;
    visibility: visible;
}
.lightbox-close {
    position: absolute;
    top: 1rem;
    right: 1rem;
    font-size: 2rem;
    color: #fff;
    background: transparent;
    border: none;
    cursor: pointer;
    line-height: 1;
}
.lightbox-img {
    max-width: 90vw;
    max-height: 90vh;
    border-radius: .5rem;
    box-shadow: 0 8px 32px rgba(0,0,0,.5);
    opacity: 0;
    transition: opacity .3s ease;
}
.lightbox.visible .lightbox-img {
    opacity: 1;
}
.lightbox-nav {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background: rgba(0,0,0,.4);
    border: none;
    color: #fff;
    font-size: 2rem;
    width: 4rem;
    height: 4rem;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
}
.lightbox-nav.left  { left: 1rem; }
.lightbox-nav.right { right: 1rem; }
.lightbox-nav:hover { background: rgba(0,0,0,.7); }
.hidden { display: none; }

body.lightbox-open {
    overflow: hidden;
    height: 100vh;
}

@media (min-width: 768px) {
    .album-header h2 {
        font-size: 2.5rem;
    }
}

@media (min-width: 1024px) {
    .hero {
        flex-direction: row;
        align-items: center;
        gap: 2rem;
    }
    .hero-img {
        flex: 1 1 50%;
        max-height: 400px;
    }
    .hero-text {
        flex: 1 1 50%;
        text-align: left;
        padding: 0;
    }
}