/* Reset & Base */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary: #222;
    --accent: #0074cc;
    --bg-light: #f8f9fa;
    --text-dark: #333;
    --text-gray: #666;
    --white: #fff;
    --shadow: 0 2px 8px rgba(0,0,0,0.1);
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: var(--bg-light);
    color: var(--text-dark);
    line-height: 1.6;
}

/* Header */
.site-header {
    background: var(--white);
    box-shadow: var(--shadow);
    position: sticky;
    top: 0;
    z-index: 100;
}

.header-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
    height: 70px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo {
    font-size: 24px;
    font-weight: 700;
    letter-spacing: 4px;
    color: var(--primary);
}

.main-nav {
    display: flex;
    gap: 32px;
}

.main-nav a {
    text-decoration: none;
    color: var(--text-gray);
    font-size: 14px;
    font-weight: 500;
    padding: 8px 0;
    border-bottom: 2px solid transparent;
    transition: all 0.2s;
}

.main-nav a:hover,
.main-nav a.active {
    color: var(--accent);
    border-bottom-color: var(--accent);
}

/* Hero */
.hero {
    background: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);
    color: var(--white);
    padding: 80px 24px;
    text-align: center;
}

.hero-content h2 {
    font-size: 36px;
    font-weight: 700;
    margin-bottom: 12px;
}

.hero-content p {
    font-size: 18px;
    opacity: 0.8;
}

/* Gallery Container */
.gallery-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 40px 24px;
}

.gallery-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 24px;
}

/* Gallery Item */
.gallery-item {
    position: relative;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: var(--shadow);
    cursor: pointer;
    aspect-ratio: 4/3;
}

.gallery-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.gallery-item:hover img {
    transform: scale(1.05);
}

.gallery-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: linear-gradient(transparent, rgba(0,0,0,0.8));
    padding: 40px 16px 16px;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.gallery-item:hover .gallery-overlay {
    opacity: 1;
}

.gallery-overlay h3 {
    color: var(--white);
    font-size: 16px;
    font-weight: 600;
}

.gallery-overlay span {
    color: rgba(255,255,255,0.7);
    font-size: 13px;
}

/* Footer */
.site-footer {
    background: var(--primary);
    color: rgba(255,255,255,0.6);
    text-align: center;
    padding: 32px;
    margin-top: 40px;
}

.site-footer p {
    font-size: 14px;
}

/* Lightbox */
.lightbox {
    display: none;
    position: fixed;
    z-index: 1000;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.95);
    align-items: center;
    justify-content: center;
    flex-direction: column;
}

.lightbox-content {
    max-width: 90%;
    max-height: 80vh;
    border-radius: 4px;
}

.lightbox-caption {
    color: var(--white);
    margin-top: 16px;
    font-size: 16px;
}

.lightbox-close {
    position: absolute;
    top: 20px;
    right: 30px;
    color: var(--white);
    font-size: 40px;
    cursor: pointer;
    transition: opacity 0.2s;
}

.lightbox-close:hover {
    opacity: 0.7;
}

/* Responsive */
@media (max-width: 768px) {
    .header-container {
        flex-direction: column;
        height: auto;
        padding: 16px;
        gap: 12px;
    }
    
    .main-nav {
        gap: 20px;
    }
    
    .hero {
        padding: 50px 24px;
    }
    
    .hero-content h2 {
        font-size: 28px;
    }
    
    .gallery-grid {
        grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
        gap: 12px;
    }
}