/* Reset and base styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Oswald', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    line-height: 1.6;
    color: #fff;
    background-color: #000;
    font-size: 16px;
}

/* Accessibility */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* Container */
.container {
    width: 100%;
    margin: 0;
    padding: 20px 20px;
}

/* Header */
.header {
    margin-bottom: 10px;
    padding-bottom: 5px;
}

.nav-section {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 20px;
    width: 100%;
}

.nav-section h1 {
    font-size: 20px;
    font-weight: 500;
    color: #fff;
    letter-spacing: 1px;
    text-transform: uppercase;
    transform: scaleX(1.2) scaleY(0.7);
    transform-origin: left center;
    margin: 0;
    padding: 0;
    flex-shrink: 0;
}

.header-links {
    display: flex !important;
    gap: 24px;
    align-items: center;
    position: static;
    background: none;
    border: none;
    border-radius: 0;
    padding: 0;
    flex-direction: row;
    min-width: auto;
    box-shadow: none;
}

.header-link {
    text-decoration: none;
    color: #fff;
    font-size: 14px;
    font-weight: 400;
    transition: color 0.2s ease;
    text-transform: uppercase;
    padding: 0;
    border-bottom: none;
    text-align: left;
}

.header-link:hover {
    color: #ccc;
}

/* Mobile menu toggle - hidden on desktop */
.mobile-menu-toggle {
    display: none !important;
    background: none;
    border: none;
    color: #fff;
    font-size: 24px;
    cursor: pointer;
    padding: 8px;
    border-radius: 4px;
    transition: background-color 0.2s ease;
}

.mobile-menu-toggle:hover {
    background-color: rgba(255, 255, 255, 0.1);
}

.filter-icon {
    display: block;
    line-height: 1;
}

/* Section headers */
.section-header {
    margin: 40px 0 20px 0;
    padding-bottom: 10px;
    border-bottom: 1px solid #333;
}

.section-header h2 {
    font-size: 18px;
    font-weight: 500;
    color: #ccc;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* Divisions Container */
.divisions-container {
    display: grid;
    grid-template-columns: 1fr;
    grid-template-rows: repeat(5, 1fr);
    gap: 8px;
    height: 94vh;
    margin-top: 5px;
}

.division {
    position: relative;
    cursor: pointer;
    border-radius: 0;
    overflow: hidden;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* Background images (you'll need to replace these with your actual image paths) */
.division[data-page="research-and-engineering"] {
    background-image: url('images/research-bw.jpg');
}

.division[data-page="research-and-engineering"]:hover {
    background-image: url('images/research-color.jpg');
}

.division[data-page="photo-videography"] {
    background-image: url('images/photo-bw.jpg');
}

.division[data-page="photo-videography"]:hover {
    background-image: url('images/photo-color.jpg');
}

.division[data-page="social-projects"] {
    background-image: url('images/social-bw.jpg');
}

.division[data-page="social-projects"]:hover {
    background-image: url('images/social-color.jpg');
}

.division[data-page="athletics-and-sports"] {
    background-image: url('images/athletics-bw.jpg');
}

.division[data-page="athletics-and-sports"]:hover {
    background-image: url('images/athletics-color.jpg');
}

.division[data-page="art-and-literature"] {
    background-image: url('images/art-bw.jpg');
}

.division[data-page="art-and-literature"]:hover {
    background-image: url('images/art-color.jpg');
}

.division:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(255, 255, 255, 0.1);
}

.division-content {
    text-align: center;
    padding: 30px;
    background: transparent;
    border-radius: 0;
    backdrop-filter: none;
    transition: background 0.3s ease;
}

.division:hover .division-content {
    background: transparent;
}

.division-content h2 {
    font-size: 22px;
    font-weight: 400;
    color: #fff;
    opacity: 1;
    margin-bottom: 12px;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.9);
    text-transform: uppercase;
    transition: opacity 0.3s ease;
}

.division:hover .division-content h2 {
    opacity: 0;
}

/* Focus styles for accessibility */
*:focus {
    outline: none;
}

/* Only show focus on keyboard navigation for divisions */
.division:focus-visible {
    outline: 2px solid #fff;
    outline-offset: 2px;
}

/* Responsive design */
@media (max-width: 768px) {
    .container {
        padding: 15px 15px;
        width: 100%;
    }
    
    .header {
        margin-bottom: 8px;
        padding-bottom: 5px;
    }
    
    .nav-section {
        flex-direction: row;
        justify-content: space-between;
        align-items: center;
        gap: 15px;
        position: relative;
    }
    
    /* Show mobile menu toggle on mobile */
    .mobile-menu-toggle {
        display: block !important;
    }
    
    .nav-section h1 {
        font-size: 18px;
        letter-spacing: 0.8px;
        font-weight: 500;
        transform: scaleX(1.2) scaleY(0.7);
        transform-origin: left center;
        margin: 0;
        padding: 0;
    }
    
    /* Mobile menu - hidden by default */
    .header-links {
        display: none !important;
        position: absolute !important;
        top: 100% !important;
        right: 0 !important;
        background: #000 !important;
        border: 1px solid #333 !important;
        border-radius: 8px !important;
        padding: 16px !important;
        flex-direction: column !important;
        gap: 12px !important;
        min-width: 160px !important;
        box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3) !important;
        z-index: 100 !important;
    }
    
    /* Show mobile menu when open */
    .header-links.mobile-menu-open {
        display: flex !important;
    }
    
    .header-link {
        font-size: 14px !important;
        padding: 8px 0 !important;
        border-bottom: 1px solid #333 !important;
        text-align: center !important;
    }
    
    .header-link:last-child {
        border-bottom: none !important;
    }
    
    .divisions-container {
        grid-template-columns: 1fr;
        grid-template-rows: repeat(5, 1fr);
        height: auto;
        gap: 6px;
    }
    
    .division {
        min-height: 120px;
    }
    
    .division-content h2 {
        font-size: 18px;
        font-weight: 400;
        text-transform: uppercase;
    }
    
    /* Mobile: Show color images by default and keep text visible */
    .division[data-page="research-and-engineering"] {
        background-image: url('images/research-color.jpg');
    }
    
    .division[data-page="photo-videography"] {
        background-image: url('images/photo-color.jpg');
    }
    
    .division[data-page="social-projects"] {
        background-image: url('images/social-color.jpg');
    }
    
    .division[data-page="athletics-and-sports"] {
        background-image: url('images/athletics-color.jpg');
    }
    
    .division[data-page="art-and-literature"] {
        background-image: url('images/art-color.jpg');
    }
    
    /* Remove hover effects on mobile */
    .division:hover {
        transform: none;
        box-shadow: none;
    }
    
    .division:hover .division-content h2 {
        opacity: 1;
    }
}