:root {
    --primary-color: #2c3e50;
    --secondary-color: #3498db;
    --accent-color: #e74c3c;
    --text-color: #333;
    --bg-color: #f8f9fa;
    --card-bg: #ffffff;
    --shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    --shadow-hover: 0 4px 16px rgba(0, 0, 0, 0.15);
    --transition: all 0.3s ease;
}

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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--bg-color);
    min-height: 100vh;
}

header {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    color: white;
    padding: 3rem 2rem;
    text-align: center;
    box-shadow: var(--shadow);
}

header h1 {
    font-size: 2.5rem;
    margin-bottom: 0.5rem;
    font-weight: 600;
    letter-spacing: -0.5px;
}

header p {
    font-size: 1.1rem;
    opacity: 0.95;
    font-weight: 300;
}

.home-link {
    display: inline-block;
    color: white;
    text-decoration: none;
    padding: 0.6rem 1.2rem;
    background-color: rgba(255, 255, 255, 0.2);
    border-radius: 6px;
    transition: var(--transition);
    font-weight: 500;
}

.home-link:hover {
    background-color: rgba(255, 255, 255, 0.3);
    transform: translateX(-4px);
}

main {
    max-width: 1400px;
    margin: 0 auto;
    padding: 3rem 2rem;
}

.gallery {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    animation: fadeIn 0.6s ease-in;
    justify-items: center;
    max-width: 1200px;
    margin: 0 auto;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.album-card {
    background: var(--card-bg);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
    cursor: pointer;
}

.album-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-hover);
}

.album-cover {
    width: 100%;
    height: 250px;
    object-fit: cover;
    display: block;
    transition: var(--transition);
}

.album-card:hover .album-cover {
    transform: scale(1.05);
}

.album-title {
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--primary-color);
    padding: 1.25rem 1.25rem 0.5rem 1.25rem;
}

.album-date {
    color: #666;
    font-size: 0.9rem;
    padding: 0 1.25rem 1.25rem 1.25rem;
    font-weight: 400;
}

/* Gallery (album.html) styles */
.gallery img {
    width: 100%;
    height: 250px;
    object-fit: cover;
    border-radius: 12px;
    box-shadow: var(--shadow);
    transition: var(--transition);
    cursor: pointer;
    background: var(--card-bg);
}

.gallery img:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-hover);
}

/* Photo page styles */
body.photo-page {
    background-color: #1a1a1a;
    color: #fff;
}

.container {
    margin-top: 2rem;
    text-align: center;
    padding: 0 1rem;
}

.container img#photo {
    max-width: 95vw;
    max-height: 75vh;
    border-radius: 12px;
    box-shadow: 0 4px 24px rgba(0,0,0,0.6);
    background: #111;
}

.nav {
    margin-top: 2rem;
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

.nav button {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    color: #fff;
    border: none;
    padding: 0.8rem 2rem;
    border-radius: 8px;
    font-size: 1.1rem;
    cursor: pointer;
    transition: var(--transition);
    font-weight: 500;
}

.nav button:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(52, 152, 219, 0.4);
}

.nav button:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.filename {
    margin-top: 1.5rem;
    color: #bbb;
    font-size: 1rem;
    font-weight: 300;
}

a#downloadBtn {
    display: inline-block;
    margin-top: 1.5rem;
    background: var(--accent-color);
    color: #fff;
    padding: 0.8rem 2rem;
    border-radius: 8px;
    text-decoration: none;
    font-size: 1.1rem;
    transition: var(--transition);
    font-weight: 500;
}

a#downloadBtn:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(231, 76, 60, 0.4);
}

.loading {
    text-align: center;
    padding: 3rem;
    font-size: 1.2rem;
    color: var(--secondary-color);
}

.loading::after {
    content: '...';
    animation: dots 1.5s steps(4, end) infinite;
}

@keyframes dots {
    0%, 20% { content: '.'; }
    40% { content: '..'; }
    60%, 100% { content: '...'; }
}

/* Responsive Design */
@media (max-width: 768px) {
    header h1 {
        font-size: 2rem;
    }
    
    .gallery {
        grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
        gap: 1.5rem;
    }
    
    main {
        padding: 2rem 1rem;
    }
    
    .nav button {
        padding: 0.7rem 1.5rem;
        font-size: 1rem;
    }
}

@media (max-width: 480px) {
    .gallery {
        grid-template-columns: 1fr;
    }
    
    header {
        padding: 2rem 1rem;
    }
    
    header h1 {
        font-size: 1.75rem;
    }
}