/* Reset & Dark Theme Styling */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    background-color: #121212;
    color: #e0e0e0;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    line-height: 1.6;
}

/* Header & Navigation */
header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 2rem 5%;
    border-bottom: 1px solid #2a2a2a;
}

.logo {
    font-size: 1.5rem;
    font-weight: 300;
    letter-spacing: 2px;
    color: #ffffff;
    text-transform: uppercase;
}

nav a {
    color: #a0a0a0;
    text-decoration: none;
    margin-left: 2rem;
    font-size: 0.95rem;
    letter-spacing: 1px;
    transition: color 0.3s ease;
}

nav a:hover, nav a.active {
    color: #ffffff;
}

/* Layout Container */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 3rem 5%;
}

h1 {
    font-weight: 300;
    letter-spacing: 1px;
    margin-bottom: 1.5rem;
    color: #ffffff;
}

.album-title {
    font-size: 1.3rem;
    font-weight: 400;
    margin: 2.5rem 0 1rem 0;
    padding-bottom: 0.5rem;
    border-bottom: 1px solid #333;
    color: #d4d4d4;
}

/* Photo Grid */
.photo-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 20px;
}

.photo-card {
    overflow: hidden;
    border-radius: 4px;
    cursor: pointer;
    background: #1e1e1e;
    aspect-ratio: 4 / 3;
}

.photo-card img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    transition: transform 0.4s ease, filter 0.4s ease;
}

.photo-card:hover img {
    transform: scale(1.04);
}

/* Lightbox Modal */
.lightbox {
    display: none;
    position: fixed;
    z-index: 1000;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.92);
    justify-content: center;
    align-items: center;
}

.lightbox img {
    max-width: 90%;
    max-height: 85%;
    box-shadow: 0 0 20px rgba(0,0,0,0.8);
}

.lightbox .close {
    position: absolute;
    top: 20px;
    right: 30px;
    color: #fff;
    font-size: 40px;
    cursor: pointer;
}

/* Footer */
footer {
    text-align: center;
    padding: 3rem;
    border-top: 1px solid #2a2a2a;
    color: #666;
    font-size: 0.85rem;
}