:root {
    --primary-color: #0d6efd;
    --secondary-color: #6c757d;
    --accent-color: #ffc107;
    --success-color: #198754;
    --info-color: #0dcaf0;
    --warning-color: #ffc107;
    --danger-color: #dc3545;
    --dark-color: #212529;
    --light-color: #f8f9fa;
    --gradient-primary: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --gradient-secondary: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    --gradient-success: linear-gradient(135deg, #13B497 0%, #59D4A4 100%);
    --shadow-sm: 0 0.125rem 0.25rem rgba(0, 0, 0, 0.075);
    --shadow: 0 0.5rem 1rem rgba(0, 0, 0, 0.15);
    --shadow-lg: 0 1rem 3rem rgba(0, 0, 0, 0.175);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
    line-height: 1.6;
    color: #333;
    overflow-x: hidden;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 1rem;
}

.display-1 { font-size: 5rem; }
.display-2 { font-size: 4.5rem; }
.display-3 { font-size: 4rem; }
.display-4 { font-size: 3.5rem; }

.lead {
    font-size: 1.25rem;
    font-weight: 300;
    color: var(--secondary-color);
}

/* Top Bar */
.top-bar {
    font-size: 0.875rem;
    background: linear-gradient(135deg, #1e3c72 0%, #2a5298 100%) !important;
}

.social-links a {
    transition: all 0.3s ease;
    font-size: 1.1rem;
}

.social-links a:hover {
    color: var(--accent-color) !important;
    transform: translateY(-2px);
}

/* Main Header */
.main-header {
    backdrop-filter: blur(10px);
    background: rgba(255, 255, 255, 0.95);
    transition: all 0.3s ease;
}

.navbar-brand .logo {
    transition: transform 0.3s ease;
}

.navbar-brand:hover .logo {
    transform: rotate(5deg) scale(1.05);
}

.navbar-nav .nav-link {
    font-weight: 500;
    padding: 0.5rem 1rem;
    transition: all 0.3s ease;
    position: relative;
}

.navbar-nav .nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    width: 0;
    height: 2px;
    background: var(--primary-color);
    transition: all 0.3s ease;
    transform: translateX(-50%);
}

.navbar-nav .nav-link:hover::after,
.navbar-nav .nav-link.active::after {
    width: 80%;
}

.navbar-nav .nav-link:hover {
    color: var(--primary-color) !important;
    transform: translateY(-2px);
}

.dropdown-menu {
    border: none;
    box-shadow: var(--shadow-lg);
    animation: slideDown 0.3s ease;
}

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Quick Access Bar */
.quick-access {
    background: linear-gradient(90deg, #f8f9fa 0%, #e9ecef 100%);
}

.search-box .form-control {
    border-radius: 20px;
    border: 1px solid #dee2e6;
    transition: all 0.3s ease;
}

.search-box .form-control:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 0.2rem rgba(13, 110, 253, 0.25);
}

/* Hero Section */
.hero-section {
    min-height: 100vh;
    background: linear-gradient(135deg, rgba(0, 0, 0, 0.7), rgba(0, 0, 0, 0.5)), url('../images/hero-bg.jpg');
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
    display: flex;
    align-items: center;
    position: relative;
    overflow: hidden;
}

.hero-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 20% 80%, transparent 50%, rgba(0, 0, 0, 0.3) 51%);
}

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

.hero-title {
    font-size: 3.5rem;
    font-weight: 800;
    margin-bottom: 1.5rem;
    animation: fadeInUp 1s ease;
}

.hero-subtitle {
    font-size: 1.5rem;
    margin-bottom: 2rem;
    animation: fadeInUp 1s ease 0.2s;
    animation-fill-mode: both;
}

.hero-buttons {
    animation: fadeInUp 1s ease 0.4s;
    animation-fill-mode: both;
}

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

.btn-hero {
    padding: 12px 30px;
    font-size: 1.1rem;
    font-weight: 600;
    border-radius: 50px;
    transition: all 0.3s ease;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.btn-hero:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.2);
}

/* Section Styles */
.section {
    padding: 80px 0;
    position: relative;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 800;
    margin-bottom: 1rem;
    position: relative;
    display: inline-block;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 4px;
    background: var(--gradient-primary);
    border-radius: 2px;
}

.section-subtitle {
    font-size: 1.1rem;
    color: var(--secondary-color);
    max-width: 600px;
    margin: 0 auto 3rem;
}

/* Card Styles */
.card {
    border: none;
    border-radius: 15px;
    overflow: hidden;
    transition: all 0.3s ease;
    box-shadow: var(--shadow-sm);
}

.card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-lg);
}

.card-img-top {
    height: 250px;
    object-fit: cover;
    transition: transform 0.5s ease;
}

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

.card-body {
    padding: 1.5rem;
}

.card-title {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 0.75rem;
}

/* School Cards */
.school-card {
    background: white;
    border-radius: 20px;
    overflow: hidden;
    position: relative;
    transition: all 0.4s ease;
}

.school-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 5px;
    background: var(--gradient-primary);
}

.school-card:hover {
    transform: translateY(-15px) scale(1.02);
}

.school-icon {
    width: 80px;
    height: 80px;
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1rem;
    font-size: 2rem;
    color: white;
}

/* Course Cards */
.course-card {
    background: white;
    border-radius: 20px;
    overflow: hidden;
    position: relative;
    transition: all 0.4s ease;
    height: 100%;
}

.course-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, transparent 0%, rgba(13, 110, 253, 0.1) 100%);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.course-card:hover::before {
    opacity: 1;
}

.course-badge {
    position: absolute;
    top: 1rem;
    right: 1rem;
    background: var(--gradient-primary);
    color: white;
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-size: 0.875rem;
    font-weight: 600;
}

/* Feature Cards */
.feature-card {
    text-align: center;
    padding: 2rem;
    background: white;
    border-radius: 20px;
    transition: all 0.3s ease;
    height: 100%;
}

.feature-icon {
    width: 100px;
    height: 100px;
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
    font-size: 2.5rem;
    color: white;
    transition: all 0.3s ease;
}

.feature-card:hover .feature-icon {
    transform: scale(1.1) rotate(5deg);
}

/* Statistics Section */
.stats-section {
    background: var(--gradient-primary);
    color: white;
    padding: 60px 0;
}

.stat-item {
    text-align: center;
    padding: 2rem;
}

.stat-number {
    font-size: 3rem;
    font-weight: 800;
    margin-bottom: 0.5rem;
    display: block;
}

.stat-label {
    font-size: 1.1rem;
    opacity: 0.9;
}

/* Testimonials */
.testimonial-card {
    background: white;
    border-radius: 20px;
    padding: 2rem;
    box-shadow: var(--shadow);
    position: relative;
    margin: 1rem;
}

.testimonial-card::before {
    content: '"';
    position: absolute;
    top: -20px;
    left: 20px;
    font-size: 4rem;
    color: var(--primary-color);
    opacity: 0.2;
}

.testimonial-rating {
    color: var(--accent-color);
    margin-bottom: 1rem;
}

.testimonial-author {
    display: flex;
    align-items: center;
    margin-top: 1.5rem;
}

.testimonial-avatar {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    margin-right: 1rem;
}

/* Gallery */
.gallery-item {
    position: relative;
    overflow: hidden;
    border-radius: 15px;
    margin-bottom: 30px;
    cursor: pointer;
}

.gallery-item img {
    width: 100%;
    height: 300px;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.gallery-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(to top, rgba(0, 0, 0, 0.8) 0%, transparent 100%);
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    padding: 1.5rem;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.gallery-item:hover .gallery-overlay {
    opacity: 1;
}

.gallery-item:hover img {
    transform: scale(1.1);
}

.gallery-title {
    color: white;
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.gallery-category {
    color: rgba(255, 255, 255, 0.8);
    font-size: 0.875rem;
}

/* News Cards */
.news-card {
    background: white;
    border-radius: 20px;
    overflow: hidden;
    transition: all 0.3s ease;
    height: 100%;
}

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

.news-meta {
    display: flex;
    align-items: center;
    color: var(--secondary-color);
    font-size: 0.875rem;
    margin-bottom: 1rem;
}

.news-meta i {
    margin-right: 0.5rem;
}

/* Events */
.event-card {
    background: white;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: all 0.3s ease;
}

.event-date {
    background: var(--gradient-primary);
    color: white;
    padding: 1rem;
    text-align: center;
}

.event-day {
    font-size: 2rem;
    font-weight: 800;
    line-height: 1;
}

.event-month {
    font-size: 0.875rem;
    text-transform: uppercase;
    opacity: 0.9;
}

/* Contact Form */
.contact-form {
    background: white;
    border-radius: 20px;
    padding: 2rem;
    box-shadow: var(--shadow);
}

.form-control, .form-select {
    border: 2px solid #e9ecef;
    border-radius: 10px;
    padding: 0.75rem 1rem;
    transition: all 0.3s ease;
}

.form-control:focus, .form-select:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 0.2rem rgba(13, 110, 253, 0.25);
}

.form-label {
    font-weight: 600;
    color: var(--dark-color);
    margin-bottom: 0.5rem;
}

/* Footer */
footer {
    background: linear-gradient(135deg, #1e3c72 0%, #2a5298 100%);
    color: white;
    padding: 60px 0 20px;
}

.footer-widget h3 {
    font-size: 1.5rem;
    margin-bottom: 1.5rem;
    position: relative;
    padding-bottom: 0.5rem;
}

.footer-widget h3::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 50px;
    height: 3px;
    background: var(--accent-color);
}

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

.footer-links li {
    margin-bottom: 0.75rem;
}

.footer-links a {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    transition: all 0.3s ease;
}

.footer-links a:hover {
    color: white;
    padding-left: 5px;
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    margin-top: 3rem;
    padding-top: 2rem;
    text-align: center;
    color: rgba(255, 255, 255, 0.8);
}

/* Back to Top Button */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background: var(--gradient-primary);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
    z-index: 1000;
    cursor: pointer;
    box-shadow: var(--shadow);
}

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

.back-to-top:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

/* =========================
   Preloader Overlay
   ========================= */
.preloader {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: #ffffff; /* White background */
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    opacity: 1;
    transition: opacity 0.3s ease; /* Smooth fade */
}

/* Hidden state: fade out & allow clicks on page */
.preloader.hidden {
    opacity: 0;
    pointer-events: none;
}

/* =========================
   Spinner
   ========================= */
.spinner-border {
    display: inline-block;
    width: 3rem;
    height: 3rem;
    border: 0.3rem solid rgba(0, 123, 255, 0.3); /* Light blue border */
    border-top-color: #007bff; /* Blue top */
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

/* Spinner animation */
@keyframes spin {
    0% {
        transform: rotate(0deg);
    }
    100% {
        transform: rotate(360deg);
    }
}

/* =========================
   Optional Text Styling
   ========================= */
.preloader p {
    margin-top: 1rem;
    font-size: 1rem;
    color: #007bff; /* Match spinner color */
    font-weight: 500;
}


/* Responsive Design */
@media (max-width: 768px) {
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-subtitle {
        font-size: 1.2rem;
    }
    
    .section {
        padding: 60px 0;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .stat-number {
        font-size: 2rem;
    }
    
    .navbar-nav {
        background: white;
        padding: 1rem;
        border-radius: 10px;
        margin-top: 1rem;
        box-shadow: var(--shadow);
    }
    
    .navbar-nav .nav-link {
        padding: 0.75rem 0;
        border-bottom: 1px solid #e9ecef;
    }
    
    .navbar-nav .nav-link:last-child {
        border-bottom: none;
    }
}

@media (max-width: 576px) {
    .hero-title {
        font-size: 2rem;
    }
    
    .display-4 {
        font-size: 2.5rem;
    }
    
    .btn-hero {
        padding: 10px 20px;
        font-size: 1rem;
    }
}

/* Custom Scrollbar */
::-webkit-scrollbar {
    width: 10px;
}

::-webkit-scrollbar-track {
    background: #f1f1f1;
}

::-webkit-scrollbar-thumb {
    background: var(--gradient-primary);
    border-radius: 5px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--primary-color);
}

/* Print Styles */
@media print {
    .top-bar, .navbar, .back-to-top, .footer-bottom {
        display: none !important;
    }
    
    .section {
        padding: 20px 0;
    }
}
/* Student Cards Styles */
.student-card {
    background: white;
    border-radius: 15px;
    overflow: hidden;
    transition: all 0.3s ease;
    box-shadow: var(--shadow-sm);
    height: 100%;
    display: flex;
    flex-direction: column;
}

.student-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-lg);
}

.student-image {
    position: relative;
    overflow: hidden;
    height: 250px;
}

.student-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

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

.student-awards {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 0.25rem;
}

.student-awards .badge {
    font-size: 0.7rem;
    font-weight: 500;
}

/* Add responsive adjustments */
@media (max-width: 768px) {
    .student-image {
        height: 200px;
    }
}
/* Alumni Card Styles */
.alumni-card {
    background: white;
    border-radius: 20px;
    overflow: hidden;
    transition: all 0.3s ease;
    box-shadow: var(--shadow-sm);
    height: 100%;
}

.alumni-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-lg);
}

.alumni-avatar {
    width: 120px;
    height: 120px;
    object-fit: cover;
    border-radius: 50%;
    border: 4px solid var(--light-color);
    box-shadow: var(--shadow);
}

/* Achievement Card Styles */
.achievement-card {
    background: white;
    border-radius: 15px;
    overflow: hidden;
    transition: all 0.3s ease;
    box-shadow: var(--shadow-sm);
    height: 100%;
}

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

.achievement-card .card-body {
    padding: 1.5rem;
}