/*
  Department Website - Main Stylesheet
  Design System: Modern Academic Aesthetic
  Palette: Deep Navy + Clean White + Slate Accents
*/

:root {
    /* Colors */
    --primary: #1a3a52;
    --primary-dark: #0f2438;
    --secondary: #2d5a80;
    --slate: #6b7280;
    --light-slate: #9ca3af;
    --light-gray: #e5e7eb;
    --off-white: #f9fafb;
    --white: #ffffff;
    --accent: #3b82f6;
    --success: #10b981;
    --error: #ef4444;

    /* Typography */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-family-display: 'Space Grotesk', sans-serif;

    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    --spacing-3xl: 4rem;

    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);

    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;

    /* Transitions */
    --transition: all 0.3s ease;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family);
    color: var(--slate);
    background-color: var(--white);
    line-height: 1.6;
}

/* logo */
.logo-image {
    height: 50px;
    width: auto;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-family-display);
    color: var(--primary);
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: var(--spacing-md);
}

h1 { font-size: 3.5rem; }
h2 { font-size: 2.5rem; }
h3 { font-size: 1.75rem; }
h4 { font-size: 1.5rem; }
h5 { font-size: 1.25rem; }
h6 { font-size: 1rem; }

p {
    margin-bottom: var(--spacing-md);
    color: var(--slate);
}

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

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

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

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.08);
    z-index: 1000;
    transition: var(--transition);
}

.navbar.scrolled {
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.12);
    padding: 0.75rem 0;
}

.navbar-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 1.25rem var(--spacing-lg);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.navbar-logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-weight: 700;
    font-size: 1.25rem;
    color: var(--primary);
}

.navbar-logo a {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    color: var(--primary);
    text-decoration: none;
}

.navbar-logo i {
    font-size: 1.5rem;
}

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

.nav-link {
    color: var(--slate);
    font-weight: 500;
    font-size: 0.95rem;
    transition: var(--transition);
}

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

.nav-cta {
    padding: 0.625rem 1.25rem;
    background: var(--primary);
    color: white;
    border-radius: var(--radius-md);
    font-weight: 600;
    transition: var(--transition);
}

.nav-cta:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
}

.nav-admin {
    color: var(--primary);
    font-weight: 600;
}

/* Hamburger Menu */
.hamburger {
    display: none;
    flex-direction: column;
    gap: 0.375rem;
    cursor: pointer;
}

.hamburger span {
    width: 24px;
    height: 2.5px;
    background: var(--primary);
    border-radius: 2px;
    transition: var(--transition);
}

.hamburger.active span:nth-child(1) {
    transform: rotate(45deg) translateY(11px);
}

.hamburger.active span:nth-child(2) {
    opacity: 0;
}

.hamburger.active span:nth-child(3) {
    transform: rotate(-45deg) translateY(-10px);
}

/* Mobile Navigation */
.mobile-menu {
    display: none;
    position: fixed;
    top: 70px;
    left: 0;
    right: 0;
    background: white;
    flex-direction: column;
    padding: var(--spacing-lg);
    gap: var(--spacing-md);
    border-bottom: 1px solid var(--light-gray);
    z-index: 999;
}

.mobile-menu.active {
    display: flex;
}

.mobile-menu a {
    color: var(--slate);
    font-weight: 500;
    padding: var(--spacing-md) 0;
    border-bottom: 1px solid var(--light-gray);
}

.mobile-admin {
    background: var(--primary);
    color: white !important;
    padding: var(--spacing-md) var(--spacing-lg) !important;
    border-radius: var(--radius-md);
    text-align: center;
}

/* Main Content */
.main-content {
    margin-top: 70px;
    min-height: calc(100vh - 70px);
}

/* Hero Section */
.hero {
    position: relative;
    min-height: 90vh;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    padding: var(--spacing-3xl) var(--spacing-lg);
}

.hero-background {
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, #f0f4f8 0%, #e0e8f0 100%);
    z-index: -2;
}

.hero-bg-pattern {
    position: absolute;
    inset: 0;
    background-image:
        radial-gradient(circle at 20% 50%, rgba(26, 58, 82, 0.05) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(45, 90, 128, 0.05) 0%, transparent 50%);
    z-index: -1;
}

.hero-content {
    text-align: center;
    max-width: 900px;
    z-index: 1;
}

.hero-badge {
    display: inline-block;
    padding: var(--spacing-sm) var(--spacing-lg);
    background: rgba(26, 58, 82, 0.08);
    color: var(--primary);
    border-radius: 50px;
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: var(--spacing-lg);
    letter-spacing: 0.5px;
}

.hero-title {
    font-size: 4.5rem;
    margin-bottom: var(--spacing-lg);
    line-height: 1.1;
    color: var(--primary);
}

.hero-subtitle {
    font-size: 1.5rem;
    color: var(--slate);
    margin-bottom: var(--spacing-2xl);
    line-height: 1.6;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

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

.cta-primary {
    padding: 1rem 2.5rem;
    background: var(--primary);
    color: white;
    border: none;
    border-radius: var(--radius-md);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.cta-primary:hover {
    background: var(--primary-dark);
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
}

.cta-secondary {
    padding: 1rem 2.5rem;
    background: white;
    color: var(--primary);
    border: 2px solid var(--primary);
    border-radius: var(--radius-md);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.cta-secondary:hover {
    background: var(--primary);
    color: white;
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
}

.hero-scroll-indicator {
    position: absolute;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-sm);
    color: var(--slate);
    font-size: 0.9rem;
    animation: bounce 2s infinite;
}

@keyframes bounce {
    0%, 100% { transform: translate(-50%, 0); }
    50% { transform: translate(-50%, 8px); }
}

/* Page Hero */
.page-hero {
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    color: white;
    padding: 6rem var(--spacing-lg) 4rem;
    text-align: center;
}

.page-hero h1 {
    color: white;
    font-size: 3rem;
    margin-bottom: var(--spacing-md);
}

.page-hero p {
    color: rgba(255, 255, 255, 0.9);
    font-size: 1.25rem;
}

/* Sections */
section {
    padding: 5rem var(--spacing-lg);
}

.section-label {
    display: block;
    font-size: 0.85rem;
    color: var(--primary);
    font-weight: 700;
    letter-spacing: 1px;
    text-transform: uppercase;
    margin-bottom: var(--spacing-md);
}

.section-title {
    text-align: center;
    margin-bottom: var(--spacing-3xl);
    position: relative;
    padding-bottom: var(--spacing-lg);
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 4px;
    background: linear-gradient(90deg, var(--primary), var(--secondary));
    border-radius: 2px;
}

/* Welcome Section */
.welcome-section {
    background: var(--off-white);
}

.welcome-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.welcome-image {
    position: relative;
}

.image-placeholder,
.image-placeholder-hod,
.image-placeholder-small,
.image-placeholder-gallery {
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #e0e8f0 0%, #d0d8e8 100%);
    border-radius: var(--radius-lg);
    color: var(--light-slate);
    font-size: 3rem;
    min-height: 400px;
}

.image-placeholder-hod {
    min-height: 500px;
}

.image-placeholder-small {
    min-height: 200px;
    font-size: 2rem;
}

.image-placeholder-gallery {
    min-height: 250px;
    aspect-ratio: 1;
}

.welcome-content h2 {
    margin-bottom: var(--spacing-lg);
}

.welcome-content > p {
    font-size: 1.05rem;
    line-height: 1.8;
    margin-bottom: var(--spacing-lg);
}

.welcome-features {
    list-style: none;
    margin: var(--spacing-2xl) 0;
}

.welcome-features li {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
    font-size: 1rem;
}

.welcome-features i {
    color: var(--success);
    font-size: 1.25rem;
}

.cta-link {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    color: var(--primary);
    font-weight: 600;
    transition: var(--transition);
    margin-top: var(--spacing-lg);
}

.cta-link:hover {
    gap: var(--spacing-md);
    color: var(--secondary);
}

/* Stats Section */
.stats-section {
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    color: white;
}

.stats-section .section-title {
    color: white;
}

.stats-section .section-title::after {
    background: rgba(255, 255, 255, 0.5);
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.stat-card {
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: var(--radius-lg);
    padding: 2rem;
    text-align: center;
    backdrop-filter: blur(10px);
    transition: var(--transition);
}

.stat-card:hover {
    transform: translateY(-8px);
    background: rgba(255, 255, 255, 0.15);
}

.stat-icon {
    font-size: 2.5rem;
    margin-bottom: var(--spacing-lg);
    opacity: 0.9;
}

.stat-card h3 {
    color: white;
    font-size: 2.5rem;
    margin: var(--spacing-lg) 0;
}

.stat-card p {
    color: rgba(255, 255, 255, 0.9);
    font-size: 1.1rem;
    margin: 0;
}

/* News Section */
.news-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2.5rem;
}

.news-card {
    background: white;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: var(--transition);
    display: flex;
    flex-direction: column;
}

.news-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
}

.news-image {
    width: 100%;
    height: 200px;
    background: linear-gradient(135deg, #e0e8f0 0%, #d0d8e8 100%);
    overflow: hidden;
}

.news-content {
    padding: 2rem;
    flex: 1;
    display: flex;
    flex-direction: column;
}

.news-date {
    color: var(--light-slate);
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
    margin-bottom: var(--spacing-md);
}

.news-content h3 {
    margin-bottom: var(--spacing-md);
    line-height: 1.4;
}

.news-content p {
    color: var(--slate);
    flex: 1;
    margin-bottom: var(--spacing-lg);
    font-size: 0.95rem;
}

.news-link {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    color: var(--primary);
    font-weight: 600;
    transition: var(--transition);
}

.news-link:hover {
    gap: var(--spacing-md);
    color: var(--secondary);
}

/* Research Section */
.research-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2.5rem;
}

.research-card {
    padding: 2rem;
    background: white;
    border-radius: var(--radius-lg);
    border: 2px solid var(--light-gray);
    text-align: center;
    transition: var(--transition);
}

.research-card:hover {
    border-color: var(--primary);
    box-shadow: var(--shadow-lg);
    transform: translateY(-4px);
}

.research-icon {
    font-size: 2.5rem;
    color: var(--primary);
    margin-bottom: var(--spacing-lg);
}

.research-card h3 {
    margin-bottom: var(--spacing-md);
}

.research-card p {
    color: var(--slate);
    line-height: 1.7;
}

/* Testimonials */
.testimonials-carousel {
    position: relative;
    max-width: 900px;
    margin: 0 auto 3rem;
}

.testimonial-card {
    background: white;
    border-radius: var(--radius-lg);
    padding: 2.5rem;
    box-shadow: var(--shadow-md);
    opacity: 0;
    position: absolute;
    inset: 0;
    transition: opacity 0.5s ease;
}

.testimonial-card.active {
    opacity: 1;
    position: relative;
}

.testimonial-header {
    display: flex;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
    align-items: flex-start;
}

.testimonial-avatar {
    font-size: 3rem;
    color: var(--primary);
}

.testimonial-author h4 {
    margin-bottom: var(--spacing-sm);
}

.testimonial-author p {
    color: var(--slate);
    font-size: 0.9rem;
    margin: 0;
}

.testimonial-text {
    font-size: 1.1rem;
    color: var(--slate);
    margin-bottom: var(--spacing-lg);
    line-height: 1.8;
}

.testimonial-rating {
    color: #fbbf24;
    font-size: 1rem;
}

.carousel-controls {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 2rem;
    margin-top: var(--spacing-2xl);
}

.carousel-btn {
    width: 44px;
    height: 44px;
    border: 2px solid var(--light-gray);
    background: white;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--slate);
    transition: var(--transition);
}

.carousel-btn:hover {
    border-color: var(--primary);
    color: var(--primary);
    transform: scale(1.1);
}

.carousel-dots {
    display: flex;
    gap: var(--spacing-md);
}

.dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: var(--light-gray);
    cursor: pointer;
    transition: var(--transition);
}

.dot.active {
    background: var(--primary);
    width: 32px;
    border-radius: 6px;
}

/* CTA Section */
.cta-section {
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    color: white;
    padding: 5rem var(--spacing-lg);
    text-align: center;
    border-radius: var(--radius-lg);
    margin: var(--spacing-3xl);
}

.cta-section h2 {
    color: white;
    font-size: 2.5rem;
    margin-bottom: var(--spacing-lg);
}

.cta-section p {
    color: rgba(255, 255, 255, 0.9);
    font-size: 1.2rem;
    margin-bottom: var(--spacing-2xl);
}

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

/* Footer */
.footer {
    background: var(--primary);
    color: white;
    padding: 4rem var(--spacing-lg) 2rem;
    margin-top: var(--spacing-3xl);
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 3rem;
    margin-bottom: 3rem;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-weight: 700;
    font-size: 1.25rem;
    margin-bottom: var(--spacing-lg);
}

.footer-logo i {
    font-size: 1.5rem;
}

.footer-desc {
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: var(--spacing-lg);
    font-size: 0.95rem;
}

.footer-social {
    display: flex;
    gap: var(--spacing-lg);
}

.footer-social a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    color: white;
    transition: var(--transition);
}

.footer-social a:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: translateY(-4px);
}

.footer-section h3 {
    color: white;
    font-size: 1rem;
    margin-bottom: var(--spacing-lg);
}

.footer-links,
.footer-contact,
.footer-hours {
    list-style: none;
}

.footer-links li,
.footer-contact li,
.footer-hours li {
    margin-bottom: var(--spacing-md);
}

.footer-links a,
.footer-contact a,
.footer-hours span {
    color: rgba(255, 255, 255, 0.8);
    transition: var(--transition);
}

.footer-links a:hover,
.footer-contact a:hover {
    color: white;
}

.footer-contact {
    font-size: 0.9rem;
}

.footer-hours span {
    color: rgba(255, 255, 255, 0.8);
}

.footer-hours strong {
    color: white;
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: var(--spacing-lg);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--spacing-lg);
    font-size: 0.9rem;
    color: rgba(255, 255, 255, 0.8);
}

.footer-bottom-links {
    display: flex;
    gap: var(--spacing-2xl);
}

.footer-bottom-links a {
    color: rgba(255, 255, 255, 0.8);
    transition: var(--transition);
}

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

/* HOD Section */
.hod-section {
    background: var(--off-white);
}

.hod-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.hod-message h2 {
    margin-bottom: var(--spacing-lg);
}

.message-body {
    color: var(--slate);
    line-height: 1.8;
    margin-bottom: var(--spacing-2xl);
}

.message-body p {
    margin-bottom: var(--spacing-lg);
}

.hod-signature {
    border-top: 2px solid var(--light-gray);
    padding-top: var(--spacing-lg);
}

.hod-signature h4 {
    margin-bottom: var(--spacing-sm);
}

.hod-signature p {
    margin: 0;
    font-size: 0.95rem;
}

.hod-credentials {
    color: var(--light-slate);
    font-size: 0.85rem;
    margin-top: var(--spacing-sm);
}

/* Info Cards */
.info-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
}

.info-card {
    background: white;
    border-radius: var(--radius-lg);
    padding: 2rem;
    border: 2px solid var(--light-gray);
    text-align: center;
    transition: var(--transition);
    opacity: 0;
}

.info-card:hover {
    border-color: var(--primary);
    box-shadow: var(--shadow-lg);
    transform: translateY(-4px);
}

.info-icon {
    font-size: 2.5rem;
    color: var(--primary);
    margin-bottom: var(--spacing-lg);
}

.info-card h3 {
    margin-bottom: var(--spacing-md);
}

.values-list {
    list-style: none;
    text-align: left;
}

.values-list li {
    margin-bottom: var(--spacing-md);
    color: var(--slate);
    line-height: 1.6;
}

/* Gallery */
.gallery-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.gallery-item {
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: var(--transition);
}

.gallery-item:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
}

.gallery-image {
    width: 100%;
    height: 250px;
    background: linear-gradient(135deg, #e0e8f0 0%, #d0d8e8 100%);
    display: flex;
    align-items: center;
    justify-content: center;
}

.gallery-item h4 {
    padding: 1.5rem;
    background: white;
    margin: 0;
    text-align: center;
}

/* Timeline */
.timeline {
    position: relative;
    padding: 2rem 0;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    width: 2px;
    height: 100%;
    background: var(--light-gray);
}

.timeline-item {
    margin-bottom: 3rem;
    opacity: 0;
    transform: translateX(-20px);
}

.timeline-item:nth-child(odd) {
    text-align: right;
    padding-right: 50%;
    padding-left: 0;
}

.timeline-item:nth-child(even) {
    text-align: left;
    padding-left: 50%;
    padding-right: 0;
}

.timeline-marker {
    position: absolute;
    left: 50%;
    top: 0;
    width: 16px;
    height: 16px;
    background: var(--primary);
    border: 3px solid white;
    border-radius: 50%;
    transform: translateX(-50%);
    box-shadow: 0 0 0 4px var(--light-gray);
}

.timeline-content h4 {
    color: var(--primary);
    margin-bottom: var(--spacing-sm);
}

.timeline-content p {
    color: var(--slate);
    margin: 0;
}

/* Buttons */
.btn-secondary {
    padding: 0.75rem 1.5rem;
    background: white;
    color: var(--primary);
    border: 2px solid var(--primary);
    border-radius: var(--radius-md);
    cursor: pointer;
    font-weight: 600;
    transition: var(--transition);
    font-family: var(--font-family);
}

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

/* Responsive */
@media (max-width: 768px) {
    :root {
        --spacing-lg: 1rem;
    }

    h1 { font-size: 2.5rem; }
    h2 { font-size: 2rem; }

    .nav-menu {
        display: none;
    }

    .hamburger {
        display: flex;
    }

    .main-content {
        margin-top: 60px;
    }

    .navbar-container {
        padding: 1rem var(--spacing-md);
    }

    .hero {
        min-height: 70vh;
        padding: var(--spacing-2xl) var(--spacing-lg);
    }

    .hero-title {
        font-size: 2.5rem;
    }

    .hero-subtitle {
        font-size: 1.1rem;
    }

    .welcome-grid,
    .hod-grid,
    .page-hero {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .image-placeholder,
    .image-placeholder-hod {
        min-height: 300px;
    }

    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .timeline::before {
        left: 0;
    }

    .timeline-item {
        padding-left: 40px !important;
        padding-right: 0 !important;
        text-align: left !important;
    }

    .timeline-marker {
        left: 0;
    }

    section {
        padding: 3rem var(--spacing-lg);
    }
}

@media (max-width: 480px) {
    h1 { font-size: 1.75rem; }
    h2 { font-size: 1.5rem; }

    .stats-grid {
        grid-template-columns: 1fr;
    }

    .hero-ctas {
        flex-direction: column;
    }

    .cta-primary,
    .cta-secondary {
        width: 100%;
    }

    section {
        padding: 2rem 1rem;
    }
}