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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #ffffff;
}

/* ===== CSS Variables ===== */
:root {
    --primary-blue: #004681;
    --primary-red: #d21243;
    --white: #ffffff;
    --light-gray: #f8f9fa;
    --medium-gray: #6c757d;
    --dark-gray: #343a40;
    --border-color: #e9ecef;
    
    /* Typography */
    --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-xs: 0.5rem;
    --spacing-sm: 0.75rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    --spacing-3xl: 4rem;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
    
    /* Transitions */
    --transition-fast: 0.2s ease-in-out;
    --transition-normal: 0.3s ease-in-out;
    --transition-slow: 0.5s ease-in-out;
}

/* ===== Utility Classes ===== */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

.section {
    padding: var(--spacing-3xl) 0;
}

.link {
    color: var(--primary-blue);
    text-decoration: none;
    transition: color var(--transition-fast);
}

.link:hover {
    color: var(--primary-red);
}

.link.highlight {
    color: var(--primary-red);
    font-weight: 500;
}

.link.highlight:hover {
    color: var(--primary-blue);
}

/* ===== Button Styles ===== */
.btn {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-sm) var(--spacing-lg);
    font-size: var(--font-size-base);
    font-weight: 500;
    text-decoration: none;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.btn-primary {
    background-color: var(--primary-blue);
    color: var(--white);
}

.btn-primary:hover {
    background-color: #003666;
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-secondary {
    background-color: transparent;
    color: var(--primary-blue);
    border: 2px solid var(--primary-blue);
}

.btn-secondary:hover {
    background-color: var(--primary-blue);
    color: var(--white);
}

.btn-outline {
    background-color: transparent;
    color: var(--primary-red);
    border: 2px solid var(--primary-red);
}

.btn-outline:hover {
    background-color: var(--primary-red);
    color: var(--white);
}

/* ===== Header & Navigation ===== */
.header {
    background-color: var(--white);
    box-shadow: var(--shadow-md);
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
}

.navbar {
    padding: var(--spacing-lg) 0;
}

.navbar .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-brand {
    display: flex;
    align-items: center;
}

.brand-link {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    text-decoration: none;
    color: inherit;
}

.brand-logo {
    height: 50px;
    width: auto;
    object-fit: contain;
}

.brand-text {
    display: flex;
    flex-direction: column;
}

.cbbl-text {
    background: linear-gradient(135deg, var(--primary-blue), var(--primary-red));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-size: var(--font-size-2xl);
    font-weight: 700;
    letter-spacing: -0.5px;
    margin: 0;
}

.brand-subtitle {
    font-size: var(--font-size-xs);
    color: var(--medium-gray);
    margin-top: -5px;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
}

.nav-list {
    display: flex;
    align-items: center;
    gap: var(--spacing-xl);
    list-style: none;
}

/* ===== Language Switcher ===== */
.language-switcher {
    display: flex;
    gap: var(--spacing-xs);
    align-items: center;
    margin-left: var(--spacing-lg);
    padding-left: var(--spacing-lg);
    border-left: 1px solid var(--border-color);
}

.lang-btn {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-xs) var(--spacing-sm);
    background: transparent;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    cursor: pointer;
    transition: all var(--transition-fast);
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: var(--medium-gray);
}

.lang-btn:hover {
    border-color: var(--primary-blue);
    color: var(--primary-blue);
    background-color: var(--light-gray);
}

.lang-btn.active {
    background-color: var(--primary-blue);
    border-color: var(--primary-blue);
    color: var(--white);
}

.flag-icon {
    width: 16px;
    height: auto;
    border-radius: 2px;
}

.lang-text {
    font-weight: 600;
}

.nav-link {
    font-size: var(--font-size-base);
    font-weight: 500;
    color: var(--dark-gray);
    text-decoration: none;
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: 6px;
    transition: all var(--transition-fast);
    position: relative;
}

.nav-link:hover,
.nav-link.active {
    color: var(--primary-blue);
}

.nav-link.active::after {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 50%;
    transform: translateX(-50%);
    width: 30px;
    height: 3px;
    background: linear-gradient(135deg, var(--primary-blue), var(--primary-red));
    border-radius: 2px;
}

/* Dropdown Menu */
.systems-dropdown {
    position: relative;
}

.dropdown-toggle {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.dropdown-menu {
    position: absolute;
    top: 100%;
    right: 0;
    background-color: var(--white);
    border-radius: 8px;
    box-shadow: var(--shadow-xl);
    padding: var(--spacing-sm);
    min-width: 200px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all var(--transition-fast);
    z-index: 1000;
}

.systems-dropdown:hover .dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.dropdown-link {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm);
    color: var(--dark-gray);
    text-decoration: none;
    border-radius: 6px;
    transition: all var(--transition-fast);
}

.dropdown-link:hover {
    background-color: var(--light-gray);
    color: var(--primary-blue);
}

/* Mobile Menu Toggle */
.nav-toggle {
    display: none;
    flex-direction: column;
    cursor: pointer;
    gap: 4px;
    padding: 5px;
    border: none;
    background: none;
}

.nav-toggle .bar {
    width: 25px;
    height: 3px;
    background-color: var(--primary-blue);
    border-radius: 2px;
    transition: all var(--transition-fast);
}

.nav-toggle:hover .bar {
    background-color: var(--primary-red);
}

/* Active state for mobile toggle */
.nav-toggle.active .bar:nth-child(1) {
    transform: rotate(45deg) translateY(8px);
}

.nav-toggle.active .bar:nth-child(2) {
    opacity: 0;
}

.nav-toggle.active .bar:nth-child(3) {
    transform: rotate(-45deg) translateY(-8px);
}

/* ===== Hero Section ===== */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    background: linear-gradient(135deg, var(--primary-blue) 0%, #0056a3 100%);
    color: var(--white);
    overflow: hidden;
    margin-top: 100px;
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    overflow: hidden;
}

.dna-animation {
    position: relative;
    width: 100%;
    height: 100%;
    opacity: 0.1;
}

.helix-strand {
    position: absolute;
    width: 200px;
    height: 100%;
    background: repeating-linear-gradient(
        45deg,
        transparent,
        transparent 10px,
        rgba(255, 255, 255, 0.1) 10px,
        rgba(255, 255, 255, 0.1) 20px
    );
    animation: float 10s ease-in-out infinite;
}

.strand-1 {
    right: 10%;
    animation-delay: 0s;
}

.strand-2 {
    right: 5%;
    animation-delay: 5s;
}

@keyframes float {
    0%, 100% {
        transform: translateY(0px) rotate(0deg);
    }
    50% {
        transform: translateY(-20px) rotate(5deg);
    }
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 800px;
}

.hero-title {
    font-size: var(--font-size-5xl);
    font-weight: 700;
    margin-bottom: var(--spacing-md);
    line-height: 1.2;
}

.hero-title .highlight {
    background: linear-gradient(135deg, #ffd700, var(--primary-red));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: var(--font-size-2xl);
    font-weight: 300;
    margin-bottom: var(--spacing-lg);
    opacity: 0.9;
}

.hero-description {
    font-size: var(--font-size-lg);
    margin-bottom: var(--spacing-2xl);
    opacity: 0.8;
    line-height: 1.7;
}

.hero-actions {
    display: flex;
    gap: var(--spacing-lg);
    flex-wrap: wrap;
}

/* ===== Page Header ===== */
.page-header {
    background: linear-gradient(135deg, var(--primary-blue) 0%, #0056a3 100%);
    color: var(--white);
    padding: var(--spacing-3xl) 0 var(--spacing-2xl);
    margin-top: 100px;
}

.page-header-content {
    text-align: center;
}

.page-title {
    font-size: var(--font-size-4xl);
    font-weight: 700;
    margin-bottom: var(--spacing-md);
}

.page-subtitle {
    font-size: var(--font-size-lg);
    opacity: 0.9;
}

/* ===== Section Headers ===== */
.section-header {
    text-align: center;
    margin-bottom: var(--spacing-3xl);
}

.section-title {
    font-size: var(--font-size-3xl);
    font-weight: 700;
    color: var(--primary-blue);
    margin-bottom: var(--spacing-md);
}

.section-divider {
    width: 60px;
    height: 4px;
    background: linear-gradient(135deg, var(--primary-blue), var(--primary-red));
    border-radius: 2px;
    margin: 0 auto var(--spacing-lg);
}

.section-subtitle {
    font-size: var(--font-size-lg);
    color: var(--medium-gray);
    max-width: 600px;
    margin: 0 auto;
}

/* ===== About Section ===== */
.about-section {
    background-color: var(--light-gray);
}

.about-content {
    max-width: 800px;
    margin: 0 auto;
}

.about-text p {
    font-size: var(--font-size-lg);
    margin-bottom: var(--spacing-lg);
    line-height: 1.8;
}

/* ===== Research Section ===== */
.research-section {
    background-color: var(--white);
}

.research-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-2xl);
}

.research-card {
    background-color: var(--white);
    border-radius: 12px;
    padding: var(--spacing-2xl);
    text-align: center;
    box-shadow: var(--shadow-lg);
    transition: transform var(--transition-normal);
    border: 1px solid var(--border-color);
}

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

.research-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto var(--spacing-lg);
    background: linear-gradient(135deg, var(--primary-blue), var(--primary-red));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: var(--font-size-2xl);
}

.research-card h3 {
    font-size: var(--font-size-xl);
    font-weight: 600;
    color: var(--primary-blue);
    margin-bottom: var(--spacing-md);
}

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

/* ===== Tools Section ===== */
.tools-section {
    background-color: var(--light-gray);
}

.tools-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: var(--spacing-2xl);
}

.tool-card {
    background-color: var(--white);
    border-radius: 12px;
    padding: var(--spacing-2xl);
    box-shadow: var(--shadow-lg);
    transition: transform var(--transition-normal);
}

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

.tool-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

.tool-header i {
    font-size: var(--font-size-2xl);
    color: var(--primary-red);
}

.tool-header h3 {
    font-size: var(--font-size-xl);
    font-weight: 600;
    color: var(--primary-blue);
}

.tool-card p {
    color: var(--medium-gray);
    margin-bottom: var(--spacing-lg);
    line-height: 1.6;
}

/* ===== Team Section ===== */
.team-section {
    background-color: var(--white);
}

.team-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: var(--spacing-3xl);
    margin-bottom: var(--spacing-3xl);
}

.team-card {
    background-color: var(--white);
    border-radius: 16px;
    padding: var(--spacing-2xl);
    box-shadow: var(--shadow-lg);
    transition: transform var(--transition-normal);
    border: 1px solid var(--border-color);
}

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

.team-photo {
    margin-bottom: var(--spacing-lg);
    text-align: center;
}

.photo-placeholder, .team-photo > img {
    width: 120px;
    height: 120px;
    margin: 0 auto;
    background: linear-gradient(135deg, var(--primary-blue), var(--primary-red));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: var(--font-size-3xl);
}

.team-name {
    font-size: var(--font-size-2xl);
    font-weight: 600;
    color: var(--primary-blue);
    margin-bottom: var(--spacing-xs);
}

.team-title {
    font-size: var(--font-size-lg);
    color: var(--primary-red);
    font-weight: 500;
    margin-bottom: var(--spacing-lg);
}

.team-contact {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-lg);
}

.contact-link {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    color: var(--primary-blue);
    text-decoration: none;
    font-size: var(--font-size-sm);
    transition: color var(--transition-fast);
}

.contact-link:hover {
    color: var(--primary-red);
}

.team-bio {
    margin-bottom: var(--spacing-lg);
}

.team-bio p {
    color: var(--medium-gray);
    margin-bottom: var(--spacing-md);
    line-height: 1.6;
}

.team-expertise h4 {
    font-size: var(--font-size-base);
    color: var(--primary-blue);
    margin-bottom: var(--spacing-sm);
}

.expertise-tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-xs);
}

.tag {
    background-color: var(--light-gray);
    color: var(--primary-blue);
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: 20px;
    font-size: var(--font-size-sm);
    font-weight: 500;
}

/* Add More Members Section */
.add-members-section {
    text-align: center;
}

.add-members-card {
    background-color: var(--light-gray);
    border: 2px dashed var(--border-color);
    border-radius: 16px;
    padding: var(--spacing-3xl);
    max-width: 400px;
    margin: 0 auto;
}

.add-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto var(--spacing-lg);
    background-color: var(--border-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--medium-gray);
    font-size: var(--font-size-2xl);
}

.add-members-card h3 {
    font-size: var(--font-size-xl);
    color: var(--medium-gray);
    margin-bottom: var(--spacing-md);
}

.add-members-card p {
    color: var(--medium-gray);
    line-height: 1.6;
}

/* ===== Collaboration Section ===== */
.collaboration-section {
    background-color: var(--light-gray);
}

.collaboration-content {
    text-align: center;
}

.collaboration-text p {
    font-size: var(--font-size-lg);
    color: var(--dark-gray);
}

/* ===== Contact Section ===== */
.contact-section {
    background-color: var(--white);
}

.contact-intro {
    text-align: center;
    margin-bottom: var(--spacing-3xl);
}

.contact-intro h2 {
    font-size: var(--font-size-3xl);
    color: var(--primary-blue);
    margin-bottom: var(--spacing-lg);
}

.contact-intro p {
    font-size: var(--font-size-lg);
    color: var(--medium-gray);
    margin-bottom: var(--spacing-lg);
}

.university-link {
    margin-top: var(--spacing-lg);
}

.contact-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-2xl);
    margin-bottom: var(--spacing-3xl);
}

.contact-info-card {
    background-color: var(--white);
    border-radius: 12px;
    padding: var(--spacing-2xl);
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--border-color);
    text-align: center;
}

.contact-header {
    margin-bottom: var(--spacing-lg);
}

.contact-icon {
    width: 60px;
    height: 60px;
    margin: 0 auto var(--spacing-md);
    background: linear-gradient(135deg, var(--primary-blue), var(--primary-red));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: var(--font-size-xl);
}

.contact-header h3 {
    font-size: var(--font-size-xl);
    color: var(--primary-blue);
    font-weight: 600;
}

.contact-details {
    color: var(--dark-gray);
}

.phone-number {
    font-size: var(--font-size-xl);
    font-weight: 600;
    color: var(--primary-blue);
    margin-bottom: var(--spacing-xs);
}

.phone-extension {
    font-size: var(--font-size-base);
    color: var(--medium-gray);
}

.contact-details p {
    margin-bottom: var(--spacing-xs);
    line-height: 1.6;
}

.contact-visual {
    text-align: center;
    margin: var(--spacing-3xl) 0;
}

.contact-illustration {
    display: flex;
    justify-content: center;
    gap: var(--spacing-2xl);
}

.illustration-item {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, var(--primary-blue), var(--primary-red));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: var(--font-size-2xl);
    opacity: 0.8;
}

.university-section {
    background-color: var(--light-gray);
    border-radius: 12px;
    padding: var(--spacing-2xl);
    display: flex;
    align-items: center;
    gap: var(--spacing-xl);
    max-width: 600px;
    margin: 0 auto;
}

.logo-placeholder {
    width: 80px;
    height: 80px;
    background-color: var(--primary-blue);
    border-radius: 12px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: var(--font-size-lg);
    font-weight: 700;
}

.university-info h3 {
    font-size: var(--font-size-xl);
    color: var(--primary-blue);
    margin-bottom: var(--spacing-xs);
}

.university-info p {
    color: var(--medium-gray);
}

/* ===== Additional Info Section ===== */
.additional-info-section {
    background-color: var(--light-gray);
}

.additional-info {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-2xl);
}

.info-card {
    background-color: var(--white);
    border-radius: 12px;
    padding: var(--spacing-xl);
    text-align: center;
    box-shadow: var(--shadow-md);
    transition: transform var(--transition-fast);
}

.info-card:hover {
    transform: translateY(-3px);
}

.info-icon {
    width: 50px;
    height: 50px;
    margin: 0 auto var(--spacing-md);
    background-color: var(--primary-blue);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: var(--font-size-lg);
}

.info-card h3 {
    font-size: var(--font-size-lg);
    color: var(--primary-blue);
    margin-bottom: var(--spacing-sm);
}

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

/* ===== Footer ===== */
.footer {
    background-color: var(--primary-blue);
    color: var(--white);
    padding: var(--spacing-3xl) 0 var(--spacing-lg);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-2xl);
    margin-bottom: var(--spacing-2xl);
}

.footer-brand h3 {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    margin-bottom: var(--spacing-md);
    background: linear-gradient(135deg, var(--white), #ffd700);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.footer-brand p {
    opacity: 0.8;
    margin-bottom: var(--spacing-xs);
}

.footer-links h4,
.footer-systems h4 {
    font-size: var(--font-size-lg);
    font-weight: 600;
    margin-bottom: var(--spacing-md);
}

.footer-links ul,
.footer-systems ul {
    list-style: none;
}

.footer-links ul li,
.footer-systems ul li {
    margin-bottom: var(--spacing-sm);
}

.footer-links a,
.footer-systems a {
    color: var(--white);
    text-decoration: none;
    opacity: 0.8;
    transition: opacity var(--transition-fast);
}

.footer-links a:hover,
.footer-systems a:hover {
    opacity: 1;
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.2);
    padding-top: var(--spacing-lg);
    text-align: center;
}

.footer-bottom p {
    opacity: 0.7;
    font-size: var(--font-size-sm);
}

/* ===== Responsive Design ===== */
@media (max-width: 768px) {
    /* Navigation */
    .nav-toggle {
        display: flex;
        flex-direction: column;
        cursor: pointer;
        gap: 4px;
        z-index: 1001;
    }
    
    .nav-toggle .bar {
        width: 25px;
        height: 3px;
        background-color: var(--primary-blue);
        border-radius: 2px;
        transition: all var(--transition-fast);
    }
    
    .nav-menu {
        position: fixed;
        top: 85px;
        left: 0;
        right: 0;
        background-color: var(--white);
        box-shadow: var(--shadow-lg);
        padding: var(--spacing-lg);
        opacity: 0;
        visibility: hidden;
        transform: translateY(-20px);
        transition: all var(--transition-normal);
        flex-direction: column;
        align-items: stretch;
        gap: var(--spacing-lg);
        z-index: 1000;
        max-height: calc(100vh - 85px);
        overflow-y: auto;
    }
    
    .nav-menu.active {
        opacity: 1;
        visibility: visible;
        transform: translateY(0);
    }
    
    .nav-list {
        flex-direction: column;
        align-items: stretch;
        gap: var(--spacing-md);
        margin: 0;
        padding: 0;
    }
    
    .nav-link {
        display: block;
        padding: var(--spacing-md);
        border-bottom: 1px solid var(--border-color);
        text-align: left;
    }
    
    .systems-dropdown .dropdown-menu {
        position: static;
        opacity: 1;
        visibility: visible;
        transform: none;
        box-shadow: none;
        border: 1px solid var(--border-color);
        margin-top: var(--spacing-sm);
        background-color: var(--light-gray);
    }
    
    /* Hide chevron icon in mobile since dropdown is always open */
    .systems-dropdown .dropdown-toggle .fa-chevron-down {
        display: none;
    }
    
    /* Language Switcher Mobile */
    .language-switcher {
        margin-left: 0;
        padding-left: 0;
        border-left: none;
        border-top: 1px solid var(--border-color);
        padding-top: var(--spacing-md);
        justify-content: center;
        margin-top: var(--spacing-md);
    }
    
    .lang-btn {
        flex: 1;
        justify-content: center;
        max-width: 80px;
    }
    
    /* Brand */
    .brand-subtitle {
        display: none;
    }
    
    .brand-logo {
        height: 40px !important;
    }
    
    .cbbl-text {
        font-size: var(--font-size-xl);
    }
    
    /* Prevent body scroll when menu is open */
    body.overflow-hidden {
        overflow: hidden;
    }
    
    /* Hero */
    .hero {
        text-align: center;
        padding: var(--spacing-2xl) 0;
    }
    
    .hero-title {
        font-size: var(--font-size-3xl);
    }
    
    .hero-subtitle {
        font-size: var(--font-size-xl);
    }
    
    .hero-actions {
        justify-content: center;
        flex-direction: column;
        align-items: center;
    }
    
    .btn {
        width: 100%;
        max-width: 300px;
        justify-content: center;
    }
    
    /* Page Header */
    .page-title {
        font-size: var(--font-size-3xl);
    }
    
    /* Section Headers */
    .section-title {
        font-size: var(--font-size-2xl);
    }
    
    /* Cards and Grids */
    .research-grid,
    .tools-grid,
    .team-grid,
    .contact-grid {
        grid-template-columns: 1fr;
    }
    
    .team-card,
    .tool-card,
    .research-card {
        padding: var(--spacing-lg);
    }
    
    /* Contact */
    .university-section {
        flex-direction: column;
        text-align: center;
    }
    
    .contact-illustration {
        flex-direction: column;
        align-items: center;
        gap: var(--spacing-lg);
    }
    
    /* Footer */
    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
}

@media (max-width: 480px) {
    /* Container */
    .container {
        padding: 0 var(--spacing-md);
    }
    
    /* Typography */
    .hero-title {
        font-size: var(--font-size-2xl);
    }
    
    .page-title {
        font-size: var(--font-size-2xl);
    }
    
    .section-title {
        font-size: var(--font-size-xl);
    }
    
    /* Spacing */
    .section {
        padding: var(--spacing-2xl) 0;
    }
    
    /* Cards */
    .team-card,
    .tool-card,
    .research-card,
    .contact-info-card {
        padding: var(--spacing-md);
    }
    
    /* DNA Animation - Hide on very small screens */
    .dna-animation {
        display: none;
    }
}

/* ===== Animations ===== */
@keyframes fadeInUp {
    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);
    }
}

/* Animation Classes */
.fade-in-up {
    animation: fadeInUp 0.6s ease-out;
}

.slide-in-left {
    animation: slideInLeft 0.6s ease-out;
}

.slide-in-right {
    animation: slideInRight 0.6s ease-out;
}

/* ===== Print Styles ===== */
@media print {
    .header,
    .footer,
    .nav-toggle,
    .btn,
    .hero-actions {
        display: none;
    }
    
    .hero {
        margin-top: 0;
        background: none;
        color: var(--dark-gray);
    }
    
    .page-header {
        margin-top: 0;
        background: none;
        color: var(--dark-gray);
    }
    
    .section {
        page-break-inside: avoid;
    }
}

/* ===== Accessibility ===== */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* Focus Styles */
.btn:focus,
.nav-link:focus,
.contact-link:focus,
.dropdown-link:focus,
.link:focus {
    outline: 2px solid var(--primary-red);
    outline-offset: 2px;
}

/* High Contrast Support */
@media (prefers-contrast: high) {
    :root {
        --border-color: #000;
        --medium-gray: #000;
    }
}