/* import AOS css */
@import url('https://cdnjs.cloudflare.com/ajax/libs/aos/2.3.4/aos.css');
:root {
    --accent-color: #e74c3c;
    --accent-hover: #c0392b;
    --text-color: #333;
    --text-light: #ecf0f1;
    --bg-light: #f5f5f5;
    --shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
    --transition: 0.3s ease;
    --container-width: 1200px;

        /* Gradients */
    --gradient-primary: linear-gradient(135deg, #0056b3 0%, #17a2b8 100%);
    --gradient-secondary: linear-gradient(135deg, #6c757d 0%, #495057 100%);
    --gradient-hero: linear-gradient(135deg, rgba(0, 86, 179, 0.95) 0%, rgba(23, 162, 184, 0.95) 100%);
    
    /* Shadows */
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.06);
    --shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 8px 15px rgba(0, 0, 0, 0.12);
    --shadow-lg: 0 15px 35px rgba(0, 0, 0, 0.15);
    --shadow-xl: 0 25px 50px rgba(0, 0, 0, 0.2);
    
    /* Typography */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 1.875rem;
    --font-size-4xl: 2.25rem;
    --font-size-5xl: 3rem;
    
    /* Spacing */
    --spacing-1: 0.25rem;
    --spacing-2: 0.5rem;
    --spacing-3: 0.75rem;
    --spacing-4: 1rem;
    --spacing-5: 1.25rem;
    --spacing-6: 1.5rem;
    --spacing-8: 2rem;
    --spacing-10: 2.5rem;
    --spacing-12: 3rem;
    --spacing-16: 4rem;
    --spacing-20: 5rem;
    
    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius: 0.5rem;
    --radius-md: 0.75rem;
    --radius-lg: 1rem;
    --radius-xl: 1.5rem;
    --radius-2xl: 2rem;
    --radius-full: 9999px;
    
    /* Transitions */
    --transition-fast: 150ms ease-in-out;
    --transition: 300ms ease-in-out;
    --transition-slow: 500ms ease-in-out;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

body {
    color: #333;
    line-height: 1.6;
    overflow-x: hidden;
}


/* ===== BREADCRUMB ===== */
.breadcrumb {
    background: var(--gray-100);
    padding: var(--spacing-4) 0;
}

.breadcrumb-list {
    display: flex;
    list-style: none;
    margin: 0;
    padding: 0;
    align-items: center;
}

.breadcrumb-list li {
    display: flex;
    align-items: center;
}

.breadcrumb-list li:not(:last-child)::after {
    content: '/';
    margin: 0 var(--spacing-3);
    color: var(--gray-500);
}

.breadcrumb-list a {
    text-decoration: none;
    color: var(--gray-600);
    transition: var(--transition);
}

.breadcrumb-list a:hover {
    color: var(--primary-color);
}

.breadcrumb-list .active {
    color: var(--primary-color);
    font-weight: 600;
}

/* ===== DEPARTMENT PAGE ===== */
.department-page {
    background: var(--gray-100);
    min-height: 100vh;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-6);
}

/* ===== DEPARTMENT HERO ===== */
.department-header {
    background: linear-gradient(135deg, #9b59b6 0%, #8e44ad 100%);
    color: white;
    padding: 80px 0;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.department-header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1440 320"><path fill="%23ffffff" fill-opacity="0.1" d="M0,96L48,112C96,128,192,160,288,160C384,160,480,128,576,122.7C672,117,768,139,864,154.7C960,171,1056,181,1152,170.7C1248,160,1344,128,1392,112L1440,96L1440,320L1392,320C1344,320,1248,320,1152,320C1056,320,960,320,864,320C768,320,672,320,576,320C480,320,384,320,288,320C192,320,96,320,48,320L0,320Z"></path></svg>') no-repeat bottom;
    background-size: cover;
}

.header-content {
    position: relative;
    z-index: 1;
}

.dept-logo {
    width: 120px;
    height: 120px;
    object-fit: contain;
    margin-bottom: 20px;
    animation: float 3s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}

.department-header h1 {
    font-size: 3rem;
    margin-bottom: 15px;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.3);
}

.department-header p {
    font-size: 1.2rem;
    max-width: 700px;
    margin: 0 auto;
}
/* ===== STATISTICS ===== */
.stats-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-6);
    max-width: 800px;
    margin: 0 auto;
}

.stat-card {
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: var(--radius-lg);
    padding: var(--spacing-6);
    text-align: center;
    transition: var(--transition);
}

.stat-card:hover {
    transform: translateY(-5px);
    background: rgba(255, 255, 255, 0.2);
}

.stat-card i {
    font-size: var(--font-size-3xl);
    margin-bottom: var(--spacing-4);
    color: rgba(255, 255, 255, 0.9);
}

.stat-number {
    font-size: var(--font-size-4xl);
    font-weight: 700;
    margin-bottom: var(--spacing-2);
    color: var(--white);
}

.stat-label {
    font-size: var(--font-size-sm);
    color: rgba(255, 255, 255, 0.8);
    font-weight: 500;
}

/* ===== DEPARTMENT LEADERSHIP ===== */
/* Team Section */
.team-section {
    padding: 80px 0;
    background: #f9f9f9;
}

.team-section h2 {
    text-align: center;
    margin-bottom: 50px;
    color: #2c3e50;
    font-size: 2.5rem;
}

.team-section h2 i {
    color: #9b59b6;
    margin-right: 15px;
}

.team-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 40px;
}

.team-card {
    background: white;
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 5px 20px rgba(0,0,0,0.1);
    transition: transform 0.3s, box-shadow 0.3s;
}

.team-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 10px 30px rgba(0,0,0,0.15);
}

.team-image {
    position: relative;
    overflow: hidden;
    height: 300px;
}

.team-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s;
}

.team-card:hover .team-image img {
    transform: scale(1.1);
}

.team-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.9) 0%, rgba(118, 75, 162, 0.9) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.3s;
}

.team-card:hover .team-overlay {
    opacity: 1;
}

.social-links {
    display: flex;
    gap: 20px;
}

.social-links a {
    width: 50px;
    height: 50px;
    background: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #9b59b6;
    font-size: 1.5rem;
    transition: transform 0.3s, background-color 0.3s;
}

.social-links a:hover {
    transform: scale(1.2);
    background-color: #f0f0f0;
}

.team-info {
    padding: 25px;
}

.team-info h3 {
    color: #2c3e50;
    margin-bottom: 5px;
    font-size: 1.4rem;
}

.team-info .position {
    color: #9b59b6;
    font-weight: 600;
    margin-bottom: 15px;
}

.team-info .description {
    color: #666;
    line-height: 1.6;
}

/* Department Mission */
.department-mission {
    padding: 80px 0;
    background-color: #f9f9f9;
}

.department-mission h2 {
    text-align: center;
    margin-bottom: 50px;
    color: #2c3e50;
    font-size: 2.5rem;
}

.department-mission h2 i {
    color: #9b59b6;
    margin-right: 15px;
}

.mission-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 40px;
}

.mission-box {
    background: white;
    padding: 40px;
    border-radius: 15px;
    box-shadow: 0 5px 20px rgba(0,0,0,0.1);
    transition: transform 0.3s, box-shadow 0.3s;
}

.mission-box:hover {
    transform: translateY(-10px);
    box-shadow: 0 10px 30px rgba(0,0,0,0.15);
}

.mission-box h3 {
    color: #9b59b6;
    margin-bottom: 20px;
    font-size: 1.8rem;
}

.mission-box h3 i {
    margin-right: 10px;
}

.mission-box ul {
    list-style: none;
    padding: 0;
}

.mission-box ul li {
    padding: 10px 0;
    padding-left: 30px;
    position: relative;
}

.mission-box ul li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: #9b59b6;
    font-weight: bold;
    font-size: 1.2rem;
}

/* Responsibilities Section */
.responsibilities {
    padding: 80px 0;
    background: white;
}

.responsibilities h2 {
    text-align: center;
    margin-bottom: 50px;
    color: #2c3e50;
    font-size: 2.5rem;
}

.responsibilities h2 i {
    color: #9b59b6;
    margin-right: 15px;
}

.responsibilities-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
}

.responsibility-card {
    background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
    padding: 30px;
    border-radius: 15px;
    text-align: center;
    transition: transform 0.3s, box-shadow 0.3s;
}

.responsibility-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 10px 30px rgba(0,0,0,0.2);
}

.icon-box {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, #9b59b6 0%, #8e44ad 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    font-size: 2rem;
    color: white;
}

.responsibility-card h3 {
    color: #2c3e50;
    margin-bottom: 15px;
    font-size: 1.3rem;
}

.responsibility-card p {
    color: #555;
    line-height: 1.8;
}

/* ===== DEPARTMENT DIVISIONS ===== */
.department-divisions {
    margin-bottom: var(--spacing-20);
}

.department-divisions h2 {
    text-align: center;
    margin-bottom: var(--spacing-10);
    color: var(--dark-color);
    font-size: var(--font-size-3xl);
}

.division-filter {
    display: flex;
    justify-content: center;
    gap: var(--spacing-3);
    margin-bottom: var(--spacing-12);
    flex-wrap: wrap;
}

.filter-btn {
    background: var(--white);
    border: 2px solid var(--gray-300);
    padding: var(--spacing-3) var(--spacing-6);
    border-radius: var(--radius-full);
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    color: var(--gray-700);
}

.filter-btn.active,
.filter-btn:hover {
    background: var(#0056b3);
    border-color: var(#0056b3);
    color: var(--white);
    transform: translateY(-2px);
}
x
.divisions-container {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-6);
}

.division-card {
    background: var(--white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow);
    overflow: hidden;
    transition: var(--transition);
}

.division-card:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-2px);
}

.division-header {
    display: flex;
    align-items: center;
    padding: var(--spacing-6);
    cursor: pointer;
    border-bottom: 1px solid var(--gray-200);
    transition: var(--transition);
}

.division-header:hover {
    background: var(--gray-50);
}

.division-icon {
    width: 60px;
    height: 60px;
    background: var(--gradient-primary);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-right: var(--spacing-4);
    flex-shrink: 0;
}

.division-icon i {
    color: var(--white);
    font-size: var(--font-size-xl);
}

.division-title {
    flex-grow: 1;
}

.division-title h3 {
    font-size: var(--font-size-xl);
    font-weight: 600;
    margin-bottom: var(--spacing-1);
    color: var(--dark-color);
}

.member-count {
    font-size: var(--font-size-sm);
    color: var(--gray-600);
    background: var(--gray-100);
    padding: var(--spacing-1) var(--spacing-3);
    border-radius: var(--radius-full);
}

.toggle-btn {
    background: none;
    border: none;
    color: var(--gray-500);
    font-size: var(--font-size-lg);
    cursor: pointer;
    transition: var(--transition);
    padding: var(--spacing-2);
    border-radius: var(--radius);
}

.toggle-btn:hover {
    background: var(--gray-100);
    color: var(--primary-color);
}

.toggle-btn.active {
    transform: rotate(180deg);
}

.division-content {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.5s ease-out;
    background: var(--white);
}

.division-content.active {
    max-height: 1000px;
}

.division-content > * {
    padding: 0 var(--spacing-6);
}

.division-content > *:first-child {
    padding-top: var(--spacing-6);
}

.division-content > *:last-child {
    padding-bottom: var(--spacing-6);
}

.division-description {
    font-size: var(--font-size-base);
    color: var(--gray-600);
    line-height: 1.7;
    margin-bottom: var(--spacing-6);
    font-style: italic;
}

.division-leadership-info {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-4);
    margin-bottom: var(--spacing-6);
    padding-bottom: var(--spacing-6);
    border-bottom: 1px solid var(--gray-200);
}

.leader-info {
    display: flex;
    align-items: center;
    gap: var(--spacing-3);
    padding: var(--spacing-4);
    background: var(--gray-50);
    border-radius: var(--radius);
    transition: var(--transition);
}

.leader-info:hover {
    background: var(--gray-100);
    transform: translateX(5px);
}

.leader-info img {
    width: 50px;
    height: 50px;
    border-radius: var(--radius-full);
    object-fit: cover;
}

.leader-info h5 {
    font-weight: 600;
    margin-bottom: var(--spacing-1);
    color: var(--dark-color);
}

.leader-info span {
    font-size: var(--font-size-sm);
    color: var(--gray-600);
}

.staff-section h4,
.division-projects h4 {
    font-size: var(--font-size-lg);
    font-weight: 600;
    margin-bottom: var(--spacing-4);
    color: var(--dark-color);
}

.staff-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-4);
    margin-bottom: var(--spacing-6);
}

.staff-member {
    display: flex;
    align-items: center;
    gap: var(--spacing-3);
    padding: var(--spacing-3);
    background: var(--gray-50);
    border-radius: var(--radius);
    transition: var(--transition);
}

.staff-member:hover {
    background: var(--gray-100);
    transform: translateY(-2px);
    box-shadow: var(--shadow-sm);
}

.staff-member img {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-full);
    object-fit: cover;
}

.staff-info h6 {
    font-weight: 600;
    margin-bottom: var(--spacing-1);
    color: var(--dark-color);
}

.staff-info span {
    font-size: var(--font-size-sm);
    color: var(--gray-600);
}

.project-tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-2);
}

.project-tag {
    background: var(--gradient-primary);
    color: var(--white);
    padding: var(--spacing-2) var(--spacing-4);
    border-radius: var(--radius-full);
    font-size: var(--font-size-sm);
    font-weight: 500;
    transition: var(--transition);
}

.project-tag:hover {
    transform: translateY(-1px);
    box-shadow: var(--shadow-sm);
}


/* Programs Section */
.programs-section {
    padding: 80px 0;
    background: white;
}

.programs-section h2 {
    text-align: center;
    margin-bottom: 50px;
    color: #2c3e50;
    font-size: 2.5rem;
}

.programs-section h2 i {
    color: #9b59b6;
    margin-right: 15px;
}

.programs-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
}

.program-card {
    background: white;
    padding: 35px;
    border-radius: 15px;
    border-left: 5px solid #9b59b6;
    box-shadow: 0 5px 20px rgba(0,0,0,0.1);
    transition: transform 0.3s, box-shadow 0.3s;
}

.program-card:hover {
    transform: translateX(10px);
    box-shadow: 0 10px 30px rgba(0,0,0,0.15);
}

.program-icon {
    width: 70px;
    height: 70px;
    background: linear-gradient(135deg, #9b59b6 0%, #8e44ad 100%);
    border-radius: 15px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
}

.program-icon i {
    font-size: 2rem;
    color: white;
}

.program-card h3 {
    color: #2c3e50;
    margin-bottom: 15px;
    font-size: 1.4rem;
}

.program-card p {
    color: #666;
    line-height: 1.8;
    margin-bottom: 15px;
}

.program-frequency {
    display: inline-block;
    background: linear-gradient(135deg, #9b59b6 0%, #8e44ad 100%);
    color: white;
    padding: 5px 15px;
    border-radius: 20px;
    font-size: 0.9rem;
    font-weight: 600;
}

/* ===== DEPARTMENT ACHIEVEMENTS ===== */
.department-achievements {
    margin-bottom: var(--spacing-20);
}

.achievements-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-6);
}

.achievement-card {
    background: var(--white);
    padding: var(--spacing-8);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow);
    text-align: center;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.achievement-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--gradient-primary);
}

.achievement-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.achievement-card i {
    font-size: var(--font-size-4xl);
    color: var(--primary-color);
    margin-bottom: var(--spacing-4);
}

.achievement-card h4 {
    font-size: var(--font-size-xl);
    font-weight: 600;
    margin-bottom: var(--spacing-3);
    color: var(--dark-color);
}

.achievement-card p {
    color: var(--gray-600);
    line-height: 1.6;
}

/* ===== FOOTER ===== */
.footer {
    background: var(--dark-color);
    color: var(--white);
    margin-top: var(--spacing-20);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-8);
    padding: var(--spacing-16) var(--spacing-6);
    max-width: 1200px;
    margin: 0 auto;
}

.footer-section h3 {
    font-size: var(--font-size-xl);
    font-weight: 600;
    margin-bottom: var(--spacing-4);
    color: var(--white);
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-3);
    margin-bottom: var(--spacing-4);
}

.footer-logo img {
    width: 50px;
    height: 50px;
    border-radius: var(--radius);
}

.footer-section p {
    line-height: 1.7;
    color: var(--gray-300);
    margin-bottom: var(--spacing-6);
}

.social-icons {
    display: flex;
    gap: var(--spacing-3);
}

.social-icons a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 45px;
    height: 45px;
    background: var(--gray-700);
    color: var(--white);
    border-radius: var(--radius-full);
    text-decoration: none;
    transition: var(--transition);
}

.social-icons a:hover {
    background: var(--primary-color);
    transform: translateY(-2px);
}

.footer-links {
    list-style: none;
    padding: 0;
    margin: 0;
}

.footer-links li {
    margin-bottom: var(--spacing-2);
}

.footer-links a {
    color: var(--gray-300);
    text-decoration: none;
    transition: var(--transition);
}

.footer-links a:hover {
    color: var(--white);
    padding-left: var(--spacing-2);
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-3);
}

.contact-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-3);
}

.contact-item i {
    color: var(--primary-color);
    width: 20px;
}

.contact-item a {
    color: var(--gray-300);
    text-decoration: none;
    transition: var(--transition);
}

.contact-item a:hover {
    color: var(--white);
}

.footer-bottom {
    border-top: 1px solid var(--gray-700);
    padding: var(--spacing-6) 0;
}

.footer-bottom .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--spacing-4);
}

.footer-links-bottom {
    display: flex;
    gap: var(--spacing-6);
}

.footer-links-bottom a {
    color: var(--gray-400);
    text-decoration: none;
    font-size: var(--font-size-sm);
    transition: var(--transition);
}

.footer-links-bottom a:hover {
    color: var(--white);
}

/* ===== BACK TO TOP ===== */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background: var(--gradient-primary);
    color: var(--white);
    border: none;
    border-radius: var(--radius-full);
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--font-size-lg);
    z-index: 1000;
}

.back-to-top.show {
    opacity: 1;
    visibility: visible;
}

.back-to-top:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
}

/* ===== RESPONSIVE DESIGN ===== */
@media (max-width: 1024px) {
    .container {
        padding: 0 var(--spacing-4);
    }
    
    .department-title {
        font-size: var(--font-size-3xl);
    }
    
    .stats-container {
        grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
        gap: var(--spacing-4);
    }
    
    .leadership-grid {
        grid-template-columns: 1fr;
        max-width: 400px;
    }
}

@media (max-width: 768px) {
    /* Header Mobile */
    .mobile-menu-btn {
        display: flex;
    }
    
    .nav {
        position: fixed;
        top: 70px;
        left: 0;
        width: 100%;
        height: calc(100vh - 70px);
        background: var(--white);
        transform: translateX(-100%);
        transition: var(--transition);
        padding: var(--spacing-8) var(--spacing-6);
        box-shadow: var(--shadow-lg);
        z-index: 999;
    }
    
    .nav.active {
        transform: translateX(0);
    }
    
    .nav-list {
        flex-direction: column;
        gap: var(--spacing-4);
    }
    
    .dropdown-menu {
        position: static;
        opacity: 1;
        visibility: visible;
        transform: none;
        box-shadow: none;
        background: var(--gray-50);
        margin-top: var(--spacing-2);
    }
    
    .btn-signin {
        display: none;
    }
    
    .mobile-menu-overlay {
        position: fixed;
        inset: 0;
        background: rgba(0, 0, 0, 0.5);
        opacity: 0;
        visibility: hidden;
        transition: var(--transition);
        z-index: 998;
    }
    
    .mobile-menu-overlay.active {
        opacity: 1;
        visibility: visible;
    }
    
    /* Hero Section Mobile */
    .department-hero {
        padding: var(--spacing-12) 0;
    }
    
    .department-title {
        font-size: var(--font-size-2xl);
    }
    
    .department-subtitle {
        font-size: var(--font-size-xl);
    }
    
    .department-logo {
        width: 100px;
        height: 100px;
    }
    
    .stats-container {
        grid-template-columns: 1fr;
        gap: var(--spacing-3);
    }
    
    /* Leadership Mobile */
    .leadership-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-6);
    }
    
    .leader-card {
        height: 350px;
    }
    
    /* Divisions Mobile */
    .division-filter {
        gap: var(--spacing-2);
    }
    
    .filter-btn {
        padding: var(--spacing-2) var(--spacing-4);
        font-size: var(--font-size-sm);
    }
    
    .division-header {
        padding: var(--spacing-4);
    }
    
    .division-icon {
        width: 50px;
        height: 50px;
        margin-right: var(--spacing-3);
    }
    
    .division-title h3 {
        font-size: var(--font-size-lg);
    }
    
    .division-content > * {
        padding: 0 var(--spacing-4);
    }
    
    .division-leadership-info {
        grid-template-columns: 1fr;
    }
    
    .staff-grid {
        grid-template-columns: 1fr;
    }
    
    /* Achievements Mobile */
    .achievements-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-4);
    }
    
    /* Footer Mobile */
    .footer-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-6);
        padding: var(--spacing-12) var(--spacing-4);
    }
    
    .footer-bottom .container {
        flex-direction: column;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .header-container {
        padding: 0 var(--spacing-4);
    }
    
    .breadcrumb-list {
        flex-wrap: wrap;
        gap: var(--spacing-2);
    }
    
    .department-hero {
        padding: var(--spacing-8) 0;
    }
    
    .department-title {
        font-size: var(--font-size-xl);
        line-height: 1.3;
    }
    
    .department-description {
        font-size: var(--font-size-base);
    }
    
    .section-header h2 {
        font-size: var(--font-size-2xl);
    }
    
    .leader-card {
        height: 320px;
    }
    
    .card-front,
    .card-back {
        padding: var(--spacing-6);
    }
    
    .division-header {
        flex-direction: column;
        text-align: center;
        gap: var(--spacing-3);
    }
    
    .division-icon {
        margin-right: 0;
    }
    
    .toggle-btn {
        position: absolute;
        top: var(--spacing-4);
        right: var(--spacing-4);
    }
    
    .back-to-top {
        bottom: 20px;
        right: 20px;
        width: 45px;
        height: 45px;
    }
}

/* ===== ANIMATIONS ===== */
@keyframes slideInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

@keyframes scaleIn {
    from {
        opacity: 0;
        transform: scale(0.9);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

/* ===== UTILITY CLASSES ===== */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.font-light { font-weight: 300; }
.font-normal { font-weight: 400; }
.font-medium { font-weight: 500; }
.font-semibold { font-weight: 600; }
.font-bold { font-weight: 700; }

.text-primary { color: var(--primary-color); }
.text-secondary { color: var(--secondary-color); }
.text-success { color: var(--accent-color); }
.text-warning { color: var(--warning-color); }
.text-danger { color: var(--danger-color); }
.text-muted { color: var(--gray-600); }

.bg-primary { background-color: var(--primary-color); }
.bg-secondary { background-color: var(--secondary-color); }
.bg-light { background-color: var(--light-color); }
.bg-white { background-color: var(--white); }

.rounded { border-radius: var(--radius); }
.rounded-lg { border-radius: var(--radius-lg); }
.rounded-full { border-radius: var(--radius-full); }

.shadow { box-shadow: var(--shadow); }
.shadow-lg { box-shadow: var(--shadow-lg); }
.shadow-xl { box-shadow: var(--shadow-xl); }

.transition { transition: var(--transition); }

.hidden { display: none; }
.visible { display: block; }

/* ===== 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;
}

/* Focus styles for better accessibility */
button:focus-visible,
a:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

/* Reduced motion for users who prefer it */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
    
    .hero-pattern {
        animation: none;
    }
    
    .logo-glow {
        animation: none;
    }
    
    .loading-spinner {
        animation: none;
    }
}

/* High contrast mode support */
@media (prefers-contrast: high) {
    :root {
        --shadow: 0 4px 6px rgba(0, 0, 0, 0.3);
        --shadow-lg: 0 15px 35px rgba(0, 0, 0, 0.3);
    }
    
    .division-card,
    .leader-card,
    .achievement-card {
        border: 2px solid var(--gray-300);
    }
}

/* Dark mode support (if needed in the future) */
@media (prefers-color-scheme: dark) {
    /* Dark mode styles can be added here */
}