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

:root {
    /* Colors - Academic theme avoiding blue/pink/gray text on colored backgrounds */
    --primary-color: #2d5a3d;     /* Deep forest green */
    --secondary-color: #c17817;    /* Academic gold */
    --accent-color: #8b4513;       /* Saddle brown */
    --success-color: #2d5a3d;      /* Forest green */
    --warning-color: #d2691e;      /* Chocolate orange */
    --error-color: #a0522d;        /* Sienna */
    
    /* Neutral colors */
    --dark-color: #2c3e50;         /* Dark slate */
    --light-color: #f8f9fa;        /* Off white */
    --white-color: #ffffff;
    --border-color: #dee2e6;
    
    /* Text colors - ensuring high contrast */
    --text-primary: #2c3e50;       /* Dark text */
    --text-secondary: #495057;     /* Medium text */
    --text-light: #ffffff;         /* Light text for dark backgrounds */
    --text-muted: #6c757d;         /* Muted text */
    
    /* Typography */
    --font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    --font-size-base: 16px;
    --line-height-base: 1.6;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 3rem;
    --spacing-xl: 4rem;
    
    /* Borders */
    --border-radius: 8px;
    --border-width: 1px;
    
    /* Shadows */
    --shadow-sm: 0 2px 4px rgba(0,0,0,0.1);
    --shadow-md: 0 4px 8px rgba(0,0,0,0.15);
    --shadow-lg: 0 8px 16px rgba(0,0,0,0.2);
}

body {
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    line-height: var(--line-height-base);
    color: var(--text-primary);
    background-color: var(--white-color);
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.2;
    margin-bottom: var(--spacing-sm);
    color: var(--text-primary);
}

h1 { font-size: 2.5rem; }
h2 { font-size: 2rem; }
h3 { font-size: 1.5rem; }
h4 { font-size: 1.25rem; }
h5 { font-size: 1.1rem; }
h6 { font-size: 1rem; }

p {
    margin-bottom: var(--spacing-sm);
    color: var(--text-primary);
}

a {
    color: var(--primary-color);
    text-decoration: none;
    transition: color 0.3s ease;
}

a:hover {
    color: var(--secondary-color);
}

/* Layout Components */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-sm);
}

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

.section-alt {
    background-color: var(--light-color);
}

/* Grid System */
.grid-2 {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-md);
    align-items: start;
}

.grid-3 {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-md);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: 14px 28px;
    border: 2px solid transparent;
    border-radius: var(--border-radius);
    font-size: var(--font-size-base);
    font-weight: 600;
    text-decoration: none;
    cursor: pointer;
    transition: all 0.3s ease;
    background: none;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    box-shadow: var(--shadow-md);
}

.btn-primary {
    background: linear-gradient(135deg, var(--secondary-color), #d2691e);
    color: var(--text-light);
    border-color: var(--secondary-color);
    text-shadow: 1px 1px 2px rgba(0,0,0,0.3);
}

.btn-primary:hover {
    background: linear-gradient(135deg, #d2691e, var(--secondary-color));
    border-color: #d2691e;
    color: var(--text-light);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-secondary {
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    color: var(--text-light);
    border-color: var(--primary-color);
    text-shadow: 1px 1px 2px rgba(0,0,0,0.3);
}

.btn-secondary:hover {
    background: linear-gradient(135deg, var(--accent-color), var(--primary-color));
    border-color: var(--accent-color);
    color: var(--text-light);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-outline {
    background-color: rgba(255,255,255,0.1);
    color: var(--text-light);
    border-color: var(--text-light);
    backdrop-filter: blur(10px);
}

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

/* Header */
.header {
    background-color: var(--white-color);
    box-shadow: var(--shadow-sm);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-sm) 0;
    max-width: 1200px;
    margin: 0 auto;
    padding-left: var(--spacing-sm);
    padding-right: var(--spacing-sm);
}

.nav-brand {
    font-size: 1.5rem;
    font-weight: 700;
}

.nav-brand a {
    color: var(--primary-color);
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.nav-menu {
    display: flex;
    gap: var(--spacing-md);
}

.nav-link {
    color: var(--text-primary);
    font-weight: 500;
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--border-radius);
    transition: all 0.3s ease;
}

.nav-link:hover {
    background-color: var(--light-color);
    color: var(--primary-color);
}

.nav-toggle {
    display: none;
    flex-direction: column;
    cursor: pointer;
    gap: 4px;
}

.nav-toggle span {
    width: 25px;
    height: 3px;
    background-color: var(--primary-color);
    transition: 0.3s;
}

/* Hero Section */
.hero {
    position: relative;
    min-height: 80vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    color: var(--text-light);
    overflow: hidden;
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0.4;
    z-index: 1;
}

.hero-svg {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 800px;
    padding: 0 var(--spacing-sm);
}

.hero h1 {
    font-size: 3.5rem;
    margin-bottom: var(--spacing-sm);
    color: var(--text-light);
}

.hero-subtitle {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-lg);
    color: var(--text-light);
    opacity: 0.9;
}

.hero-buttons {
    display: flex;
    gap: var(--spacing-sm);
    justify-content: center;
    flex-wrap: wrap;
}

/* Cards */
.card {
    background-color: var(--white-color);
    border-radius: var(--border-radius);
    padding: var(--spacing-md);
    box-shadow: var(--shadow-sm);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    text-align: center;
}

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

.card-icon {
    font-size: 3rem;
    color: var(--primary-color);
    margin-bottom: var(--spacing-sm);
}

.card h3 {
    color: var(--text-primary);
    margin-bottom: var(--spacing-sm);
}

.card p {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-md);
}

/* Stats */
.stats {
    display: flex;
    gap: var(--spacing-md);
}

.stat-item {
    text-align: center;
    padding: var(--spacing-md);
    background-color: var(--white-color);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-sm);
    flex: 1;
}

.stat-item i {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: var(--spacing-sm);
}

.stat-item h3 {
    font-size: 2rem;
    color: var(--secondary-color);
    margin-bottom: var(--spacing-xs);
}

.stat-item p {
    color: var(--text-secondary);
    font-weight: 500;
}

/* Content Sections */
.content h3 {
    color: var(--primary-color);
    margin-bottom: var(--spacing-sm);
}

.feature-list {
    list-style: none;
    margin-top: var(--spacing-sm);
}

.feature-list li {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    margin-bottom: var(--spacing-xs);
    color: var(--text-primary);
}

.feature-list i {
    color: var(--success-color);
}

/* Research Areas */
.research-areas {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-xs);
    margin-top: var(--spacing-sm);
}

.tag {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-xs) var(--spacing-sm);
    background-color: var(--light-color);
    color: var(--text-primary);
    border-radius: 20px;
    font-size: 0.9rem;
    font-weight: 500;
}

.tag i {
    color: var(--primary-color);
}

/* Service Items */
.service-item {
    text-align: center;
    padding: var(--spacing-md);
}

.service-item i {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: var(--spacing-sm);
}

.service-item h3 {
    color: var(--text-primary);
    margin-bottom: var(--spacing-sm);
}

.service-item p {
    color: var(--text-secondary);
}

/* Service Cards */
.service-card {
    background-color: var(--white-color);
    padding: var(--spacing-md);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-sm);
    text-align: center;
    transition: transform 0.3s ease;
}

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

.service-card i {
    font-size: 2.5rem;
    color: var(--secondary-color);
    margin-bottom: var(--spacing-sm);
}

/* International Stats */
.international-content {
    text-align: center;
}

.international-stats {
    display: flex;
    justify-content: center;
    gap: var(--spacing-lg);
    margin-top: var(--spacing-md);
    flex-wrap: wrap;
}

/* Campus Cards */
.campus-card {
    background-color: var(--white-color);
    padding: var(--spacing-md);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-sm);
    text-align: center;
    transition: all 0.3s ease;
}

.campus-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
}

.campus-card i {
    font-size: 2.5rem;
    color: var(--accent-color);
    margin-bottom: var(--spacing-sm);
}

/* Testimonials */
.testimonial {
    background-color: var(--white-color);
    padding: var(--spacing-md);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-sm);
    border-left: 4px solid var(--primary-color);
}

.testimonial p {
    font-style: italic;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-sm);
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    color: var(--text-primary);
    font-weight: 500;
}

.testimonial-author i {
    color: var(--primary-color);
}

/* Newsletter */
.newsletter-content {
    text-align: center;
    max-width: 600px;
    margin: 0 auto;
}

.newsletter-form {
    margin-top: var(--spacing-md);
}

.newsletter-form .form-group {
    display: flex;
    gap: var(--spacing-sm);
    justify-content: center;
    flex-wrap: wrap;
}

.newsletter-form input {
    flex: 1;
    min-width: 250px;
    padding: 12px 16px;
    border: var(--border-width) solid var(--border-color);
    border-radius: var(--border-radius);
    font-size: var(--font-size-base);
}

/* Contact Section */
.contact-info h3 {
    color: var(--primary-color);
    margin-bottom: var(--spacing-md);
}

.contact-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-sm);
    color: var(--text-primary);
}

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

.social-links {
    display: flex;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-md);
}

.social-links a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background-color: var(--primary-color);
    color: var(--text-light);
    border-radius: 50%;
    transition: all 0.3s ease;
}

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

/* Forms */
.contact-form, .newsletter-form {
    background-color: var(--white-color);
    padding: var(--spacing-md);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-sm);
}

.form-group {
    margin-bottom: var(--spacing-sm);
}

.form-group label {
    display: block;
    margin-bottom: var(--spacing-xs);
    font-weight: 500;
    color: var(--text-primary);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px 16px;
    border: var(--border-width) solid var(--border-color);
    border-radius: var(--border-radius);
    font-size: var(--font-size-base);
    font-family: inherit;
    transition: border-color 0.3s ease;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

/* Footer */
.footer {
    background-color: var(--dark-color);
    color: var(--text-light);
    padding: var(--spacing-xl) 0 var(--spacing-md);
}

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

.footer-section h3,
.footer-section h4 {
    color: var(--text-light);
    margin-bottom: var(--spacing-sm);
}

.footer-section p {
    color: var(--text-light);
    opacity: 0.9;
}

.footer-section ul {
    list-style: none;
}

.footer-section ul li {
    margin-bottom: var(--spacing-xs);
}

.footer-section ul li a {
    color: var(--text-light);
    opacity: 0.8;
    transition: opacity 0.3s ease;
}

.footer-section ul li a:hover {
    opacity: 1;
    color: var(--secondary-color);
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: var(--spacing-sm);
    text-align: center;
}

.footer-bottom p {
    color: var(--text-light);
    opacity: 0.7;
}

/* Cookie Management */
.cookie-banner {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background-color: var(--dark-color);
    color: var(--text-light);
    padding: var(--spacing-sm);
    box-shadow: var(--shadow-lg);
    z-index: 2000;
    transform: translateY(100%);
    transition: transform 0.3s ease;
}

.cookie-banner.show {
    transform: translateY(0);
}

.cookie-content {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
}

.cookie-content p {
    color: var(--text-light);
    margin: 0;
    flex: 1;
    min-width: 200px;
}

.cookie-buttons {
    display: flex;
    gap: var(--spacing-xs);
    flex-wrap: wrap;
}

.cookie-modal {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(0, 0, 0, 0.5);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 3000;
    padding: var(--spacing-sm);
}

.cookie-modal.show {
    display: flex;
}

.cookie-modal-content {
    background-color: var(--white-color);
    padding: var(--spacing-lg);
    border-radius: var(--border-radius);
    max-width: 500px;
    width: 100%;
    max-height: 80vh;
    overflow-y: auto;
}

.cookie-modal-content h3 {
    color: var(--primary-color);
    margin-bottom: var(--spacing-md);
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.cookie-category {
    margin-bottom: var(--spacing-sm);
    padding: var(--spacing-sm);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
}

.cookie-category label {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-xs);
    cursor: pointer;
    color: var(--text-primary);
}

.cookie-category input[type="checkbox"] {
    margin-top: 2px;
}

.cookie-category span {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

/* Legal Pages */
.legal-page {
    padding: var(--spacing-xl) 0;
    min-height: 70vh;
}

.legal-content {
    max-width: 800px;
    margin: 0 auto;
    padding: 0 var(--spacing-sm);
}

.legal-content h1 {
    color: var(--primary-color);
    margin-bottom: var(--spacing-lg);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.legal-section {
    margin-bottom: var(--spacing-lg);
}

.legal-section h2 {
    color: var(--secondary-color);
    margin-bottom: var(--spacing-sm);
    border-bottom: 2px solid var(--light-color);
    padding-bottom: var(--spacing-xs);
}

.legal-section h3 {
    color: var(--accent-color);
    margin-bottom: var(--spacing-sm);
    margin-top: var(--spacing-md);
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.legal-section ul {
    padding-left: var(--spacing-md);
}

.legal-section ul li {
    margin-bottom: var(--spacing-xs);
    color: var(--text-primary);
}

.legal-actions {
    display: flex;
    gap: var(--spacing-sm);
    justify-content: center;
    margin-top: var(--spacing-lg);
    flex-wrap: wrap;
}

/* Cookie Table */
.cookie-table {
    width: 100%;
    border-collapse: collapse;
    margin: var(--spacing-sm) 0;
    background-color: var(--white-color);
    box-shadow: var(--shadow-sm);
    border-radius: var(--border-radius);
    overflow: hidden;
}

.cookie-table th,
.cookie-table td {
    padding: var(--spacing-sm);
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

.cookie-table th {
    background-color: var(--primary-color);
    color: var(--text-light);
    font-weight: 600;
}

.cookie-table td {
    color: var(--text-primary);
}

.cookie-preferences {
    text-align: center;
    padding: var(--spacing-md);
    background-color: var(--light-color);
    border-radius: var(--border-radius);
    margin: var(--spacing-lg) 0;
}

/* Thanks Page */
.thanks-page {
    padding: var(--spacing-xl) 0;
    min-height: 70vh;
    display: flex;
    align-items: center;
}

.thanks-content {
    text-align: center;
    max-width: 600px;
    margin: 0 auto;
    padding: var(--spacing-lg);
    background-color: var(--light-color);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-md);
}

.thanks-icon {
    font-size: 4rem;
    color: var(--success-color);
    margin-bottom: var(--spacing-md);
}

.thanks-content h1 {
    color: var(--primary-color);
    margin-bottom: var(--spacing-sm);
}

.thanks-message {
    font-size: 1.1rem;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-lg);
}

.thanks-info {
    text-align: left;
    margin: var(--spacing-lg) 0;
    padding: var(--spacing-md);
    background-color: var(--white-color);
    border-radius: var(--border-radius);
}

.thanks-info h3 {
    color: var(--secondary-color);
    margin-bottom: var(--spacing-sm);
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.thanks-info p {
    color: var(--text-primary);
    margin-bottom: var(--spacing-sm);
}

.thanks-actions {
    display: flex;
    gap: var(--spacing-sm);
    justify-content: center;
    flex-wrap: wrap;
}

/* Responsive Design */
@media (max-width: 768px) {
    .hero h1 {
        font-size: 2.5rem;
    }
    
    .hero-subtitle {
        font-size: 1.1rem;
    }
    
    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .nav-menu {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background-color: var(--white-color);
        flex-direction: column;
        box-shadow: var(--shadow-md);
        padding: var(--spacing-sm);
    }
    
    .nav-menu.active {
        display: flex;
    }
    
    .nav-toggle {
        display: flex;
    }
    
    .grid-2,
    .grid-3 {
        grid-template-columns: 1fr;
    }
    
    .stats {
        flex-direction: column;
    }
    
    .international-stats {
        flex-direction: column;
        align-items: center;
    }
    
    .cookie-content {
        flex-direction: column;
        text-align: center;
    }
    
    .cookie-buttons {
        justify-content: center;
    }
    
    .newsletter-form .form-group {
        flex-direction: column;
    }
    
    .newsletter-form input {
        min-width: auto;
    }
    
    .legal-actions,
    .thanks-actions {
        flex-direction: column;
        align-items: center;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 var(--spacing-xs);
    }
    
    .section {
        padding: var(--spacing-md) 0;
    }
    
    .hero {
        min-height: 60vh;
    }
    
    .hero h1 {
        font-size: 2rem;
    }
    
    .card,
    .service-card,
    .campus-card {
        padding: var(--spacing-sm);
    }
    
    .cookie-modal-content {
        padding: var(--spacing-md);
        margin: var(--spacing-sm);
    }
    
    .thanks-content {
        padding: var(--spacing-md);
        margin: var(--spacing-sm);
    }
}

/* Print Styles */
@media print {
    .header,
    .cookie-banner,
    .cookie-modal,
    .footer {
        display: none;
    }
    
    .hero {
        min-height: auto;
        padding: var(--spacing-md) 0;
    }
    
    .section {
        padding: var(--spacing-sm) 0;
    }
    
    body {
        font-size: 12pt;
        color: black;
    }
    
    .btn {
        display: none;
    }
}

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

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

/* High Contrast Mode */
@media (prefers-contrast: high) {
    :root {
        --text-primary: #000000;
        --text-secondary: #000000;
        --border-color: #000000;
        --shadow-sm: 0 2px 4px rgba(0,0,0,0.3);
        --shadow-md: 0 4px 8px rgba(0,0,0,0.4);
        --shadow-lg: 0 8px 16px rgba(0,0,0,0.5);
    }
}