:root {
    /* Color scheme */
    --primary-color: #0a2540;
    --secondary-color: #0056b3; /* TES Blue */
    --accent-color: #00bfa5; /* Teal accent */
    --light-color: #f8f9fa;
    --dark-color: #343a40;
    --gray-100: #f8f9fa;
    --gray-200: #e9ecef;
    --gray-300: #dee2e6;
    --gray-400: #ced4da;
    --gray-500: #adb5bd;
    --gray-600: #6c757d;
    --gray-700: #495057;
    --gray-800: #343a40;
    --gray-900: #212529;
    --white: #ffffff;
    --black: #000000;

    /* Typography */
    --font-family: 'Inter', sans-serif;
    --h1-size: 3.5rem;
    --h2-size: 2.5rem;
    --h3-size: 1.75rem;
    --h4-size: 1.25rem;
    --body-size: 1rem;
    --small-size: 0.875rem;

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

    /* Borders */
    --border-radius-sm: 0.25rem;
    --border-radius-md: 0.5rem;
    --border-radius-lg: 1rem;

    /* Shadows */
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.1);

    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family);
    line-height: 1.6;
    color: var(--gray-800);
    background-color: var(--white);
    overflow-x: hidden;
}

img {
    max-width: 100%;
    height: auto;
    display: block; /* Prevent bottom space */
}

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

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

ul {
    list-style: none;
}

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

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

h1 { font-size: var(--h1-size); }
h2 { font-size: var(--h2-size); }
h3 { font-size: var(--h3-size); }
h4 { font-size: var(--h4-size); }

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

/* Buttons */
.btn {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    border-radius: var(--border-radius-md);
    font-weight: 600;
    text-align: center;
    cursor: pointer;
    transition: all var(--transition-normal);
    border: none;
    font-size: 1rem;
}

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

.btn-primary:hover {
    background-color: #004a9f; /* Darker blue */
    color: var(--white);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

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

.btn-secondary:hover {
    background-color: var(--white);
    color: var(--primary-color);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

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

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

.btn-block {
    display: block;
    width: 100%;
}

/* Header & Navigation */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background-color: var(--white);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-normal);
}

.header.scrolled {
    background-color: rgba(255, 255, 255, 0.95);
    box-shadow: var(--shadow-md);
}

.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.75rem 0; /* Slightly reduced padding */
}

.logo .header-logo {
    height: 50px; /* Adjust as needed */
    width: auto;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 2rem;
}

.nav-link {
    position: relative;
    font-weight: 500;
    padding: 0.5rem 0;
    color: var(--primary-color);
}

.nav-link::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    bottom: 0;
    left: 0;
    background-color: var(--secondary-color);
    transition: width var(--transition-normal);
}

.nav-link:hover::after,
.nav-link.active::after {
    width: 100%;
}

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

.cta-item {
    margin-left: 1rem;
}

.menu-toggle {
    display: none;
    cursor: pointer;
}

.bar {
    display: block;
    width: 25px;
    height: 3px;
    margin: 5px auto;
    background-color: var(--primary-color);
    transition: all var(--transition-normal);
}

/* Hero Section */
.hero {
    position: relative;
    height: 100vh;
    min-height: 600px;
    display: flex;
    align-items: center;
    color: var(--white);
    overflow: hidden;
    margin-top: 0; /* Ensure no gap below header */
}

.hero-video-container {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    /* Stock image for background */
    background: url('https://images.unsplash.com/photo-1509062522246-3755977927d7?ixlib=rb-1.2.1&auto=format&fit=crop&w=1950&q=80') no-repeat center center/cover;
    z-index: -1;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    /* Gradient overlay */
    background: linear-gradient(135deg, rgba(10, 37, 64, 0.85) 0%, rgba(0, 86, 179, 0.75) 100%);
    z-index: 1;
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 800px;
    padding: 2rem 0;
    text-align: center; /* Center content */
    margin: 0 auto; /* Center content horizontally */
}

.hero-title {
    font-size: 4rem;
    font-weight: 800;
    margin-bottom: 1.5rem;
    line-height: 1.1;
    color: var(--white);
    animation: fadeInUp 1s ease-out;
}

.hero-subtitle {
    font-size: 1.25rem;
    margin-bottom: 2.5rem;
    opacity: 0.9;
    max-width: 600px;
    margin-left: auto; /* Center subtitle */
    margin-right: auto; /* Center subtitle */
    animation: fadeInUp 1s ease-out 0.2s;
    animation-fill-mode: both;
}

.hero-buttons {
    display: flex;
    justify-content: center; /* Center buttons */
    gap: 1rem;
    animation: fadeInUp 1s ease-out 0.4s;
    animation-fill-mode: both;
}

.hero-scroll-indicator {
    position: absolute;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    z-index: 2;
    animation: bounce 2s infinite;
}

.hero-scroll-indicator a {
    color: var(--white);
    font-size: 1.5rem;
    opacity: 0.8;
    transition: opacity var(--transition-normal);
}

.hero-scroll-indicator a:hover {
    opacity: 1;
}

/* Stats Section */
.stats {
    padding: 5rem 0;
    background-color: var(--light-color);
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 2rem;
}

.stat-card {
    background-color: var(--white);
    padding: 2rem;
    border-radius: var(--border-radius-md);
    box-shadow: var(--shadow-sm);
    text-align: center;
    transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}

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

.stat-icon {
    font-size: 2.5rem;
    color: var(--secondary-color);
    margin-bottom: 1rem;
}

.stat-number {
    font-size: 3rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 0.5rem;
    line-height: 1;
}

.stat-label {
    font-size: 1.1rem;
    color: var(--gray-600);
    font-weight: 500;
}

/* About Section */
.about {
    padding: 5rem 0;
}

.section-header {
    text-align: center;
    margin-bottom: 3rem;
}

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

.section-divider {
    width: 80px;
    height: 4px;
    background: linear-gradient(to right, var(--secondary-color), var(--accent-color));
    margin: 0 auto 1.5rem;
    border-radius: 2px;
}

.section-subtitle {
    max-width: 700px;
    margin: 0 auto 2rem;
    color: var(--gray-600);
    font-size: 1.1rem;
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: center;
}

.about-image img {
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-md);
    width: 100%;
    height: auto;
}

.about-text h3 {
    margin-bottom: 1.5rem;
    font-size: 2rem;
}

.about-values {
    margin-top: 2rem;
}

.value-item {
    display: flex;
    align-items: flex-start;
    margin-bottom: 1.5rem;
}

.value-icon {
    font-size: 1.5rem;
    color: var(--accent-color);
    margin-right: 1rem;
    background-color: rgba(0, 191, 165, 0.1);
    width: 50px;
    height: 50px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.value-text h4 {
    margin-bottom: 0.25rem;
    color: var(--primary-color);
}

.value-text p {
    color: var(--gray-600);
    margin-bottom: 0;
}

/* Values Section */
.values {
    padding: 5rem 0;
    background-color: var(--light-color);
}

.values-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 2rem;
}

.value-card {
    background-color: var(--white);
    padding: 2rem;
    border-radius: var(--border-radius-md);
    box-shadow: var(--shadow-sm);
    text-align: center;
    transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}

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

.value-card-icon {
    font-size: 2.5rem;
    color: var(--secondary-color);
    margin-bottom: 1.5rem;
}

.value-card h3 {
    margin-bottom: 1rem;
}

.value-card p {
    color: var(--gray-600);
    margin-bottom: 0;
}

/* Schools Section */
.schools {
    padding: 5rem 0;
}

.schools-grid {
    display: flex;
    flex-direction: column;
    gap: 3rem; /* Increased gap */
}

.school-card {
    background-color: var(--white);
    border-radius: var(--border-radius-lg); /* More rounded corners */
    overflow: hidden;
    box-shadow: var(--shadow-md);
    display: grid;
    grid-template-columns: 1fr 1.5fr; /* Adjust column ratio */
    transition: transform var(--transition-normal), box-shadow var(--transition-normal);
    align-items: center; /* Vertically align items */
}

.school-card:hover {
    transform: translateY(-8px); /* Slightly larger hover effect */
    box-shadow: var(--shadow-lg);
}

/* Alternate layout for even cards */
.school-card:nth-child(even) {
    grid-template-columns: 1.5fr 1fr; /* Reverse column order */
}

.school-card:nth-child(even) .school-image {
    order: 2; /* Move image to the right */
}

.school-card:nth-child(even) .school-content {
    order: 1; /* Move content to the left */
}

.school-image {
    height: 100%;
    overflow: hidden;
}

.school-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.4s ease;
}

.school-card:hover .school-image img {
    transform: scale(1.05); /* Subtle zoom on hover */
}

.school-content {
    padding: 2.5rem; /* Increased padding */
}

.school-logo {
    height: 40px; /* Adjust logo size */
    width: auto;
    margin-bottom: 1rem;
}

.school-content h3 {
    margin-bottom: 1rem;
    color: var(--primary-color);
    font-size: 1.8rem; /* Slightly larger heading */
}

.school-content p {
    margin-bottom: 1.5rem;
    color: var(--gray-700);
}

.school-features {
    list-style: none;
    padding: 0;
}

.school-features li {
    margin-bottom: 0.75rem;
    display: flex;
    align-items: flex-start;
    color: var(--gray-700);
}

.school-features li i {
    color: var(--accent-color);
    margin-right: 0.75rem;
    font-size: 1.1rem;
    margin-top: 0.15em; /* Align icon better with text */
}

/* Facilities Section */
.facilities {
    padding: 5rem 0;
    background-color: var(--light-color);
}

.facilities-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 2rem;
}

.facility-card {
    background-color: var(--white);
    padding: 2rem;
    border-radius: var(--border-radius-md);
    box-shadow: var(--shadow-sm);
    text-align: center;
    transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}

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

.facility-icon {
    font-size: 2.5rem;
    color: var(--secondary-color);
    margin-bottom: 1.5rem;
}

.facility-card h3 {
    margin-bottom: 1rem;
}

.facility-card p {
    color: var(--gray-600);
    margin-bottom: 0;
}

/* Structure Section */
.structure {
    padding: 5rem 0;
}

.structure-content {
    max-width: 900px;
    margin: 0 auto;
}

.structure-content > p {
    text-align: center;
    margin-bottom: 3rem;
    font-size: 1.1rem;
    color: var(--gray-700);
}

.structure-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
}

.structure-card {
    background-color: var(--white);
    padding: 2rem;
    border-radius: var(--border-radius-md);
    box-shadow: var(--shadow-sm);
    transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}

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

.structure-card h3 {
    margin-bottom: 1.5rem;
    color: var(--primary-color);
    text-align: center;
}

.structure-list {
    list-style: none;
    padding: 0;
}

.structure-list li {
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
}

.structure-list li i {
    color: var(--secondary-color);
    margin-right: 1rem;
    font-size: 1.25rem;
    width: 20px;
    text-align: center;
}

/* Contact Section */
.contact {
    padding: 5rem 0;
    background-color: var(--light-color);
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
}

.contact-info {
    display: grid;
    grid-template-columns: 1fr; /* Stack contact cards */
    gap: 1.5rem;
}

.contact-card {
    background-color: var(--white);
    padding: 1.5rem;
    border-radius: var(--border-radius-md);
    transition: transform var(--transition-normal), box-shadow var(--transition-normal);
    display: flex;
    align-items: center;
}

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

.contact-icon {
    font-size: 1.8rem;
    color: var(--secondary-color);
    margin-right: 1.5rem;
    flex-shrink: 0;
    width: 24px; /* Fixed width for consistent alignment */
    display: flex;
    justify-content: center;
}

.contact-details {
    flex-grow: 1;
}

.contact-card h3 {
    font-size: 1.25rem;
    margin-bottom: 0.5rem;
    color: var(--primary-color);
}

.contact-card p {
    color: var(--gray-700);
    margin-bottom: 0;
}

.contact-card a {
    color: var(--secondary-color);
    word-break: break-all;
}

.contact-card a:hover {
    text-decoration: underline;
}


.contact-form-container {
    background-color: var(--white);
    padding: 2rem;
    border-radius: var(--border-radius-md);
    box-shadow: var(--shadow-sm);
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: var(--gray-700);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid var(--gray-300);
    border-radius: var(--border-radius-sm);
    font-family: var(--font-family);
    font-size: 1rem;
    transition: border-color var(--transition-normal), box-shadow var(--transition-normal);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--accent-color);
    box-shadow: 0 0 0 3px rgba(0, 86, 179, 0.1);
}

/* Footer */
.footer {
    background-color: var(--primary-color);
    color: var(--white);
    padding: 4rem 0 2rem;
}

.footer-content {
    display: grid;
    grid-template-columns: 1fr 2fr 1fr;
    gap: 3rem;
    margin-bottom: 3rem;
}

.footer-logo .footer-logo-img {
    height: 60px; /* Adjust footer logo size */
    width: auto;
    margin-bottom: 1rem;
}

.footer-logo p {
    opacity: 0.8;
    font-size: 0.95rem;
}

.footer-links {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

.footer-column h3 {
    color: var(--white);
    font-size: 1.25rem;
    margin-bottom: 1.5rem;
    position: relative;
}

.footer-column h3::after {
    content: '';
    position: absolute;
    bottom: -0.5rem;
    left: 0;
    width: 30px;
    height: 2px;
    background-color: var(--secondary-color);
}

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

.footer-column ul li,
.footer-column ul li a { /* Style list items directly for non-links */
    color: rgba(255, 255, 255, 0.8);
    transition: color var(--transition-normal);
}

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

.footer-social h3 {
    color: var(--white);
    font-size: 1.25rem;
    margin-bottom: 1.5rem;
    position: relative;
}

.footer-social h3::after {
    content: '';
    position: absolute;
    bottom: -0.5rem;
    left: 0;
    width: 30px;
    height: 2px;
    background-color: var(--secondary-color);
}

.social-icons {
    display: flex;
    gap: 1rem;
}

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

.social-icon:hover {
    background-color: var(--secondary-color);
    color: var(--white);
    transform: translateY(-3px);
}

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

.footer-bottom p {
    margin-bottom: 0.5rem;
    opacity: 0.7;
    font-size: 0.9rem;
}

.tagline {
    font-weight: bold;
    color: var(--white);
    letter-spacing: 1px;
}

/* Animations */
@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% { transform: translateY(0) translateX(-50%); }
    40% { transform: translateY(-20px) translateX(-50%); }
    60% { transform: translateY(-10px) translateX(-50%); }
}

/* Responsive Design */
@media (max-width: 1024px) {
    :root {
        --h1-size: 3rem;
        --h2-size: 2.25rem;
        --h3-size: 1.5rem;
    }

    .hero-title { font-size: 3.5rem; }

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

    .school-card,
    .school-card:nth-child(even) {
        grid-template-columns: 1fr; /* Stack image and content */
    }
    .school-card:nth-child(even) .school-image {
        order: 0; /* Reset order */
    }
    .school-card:nth-child(even) .school-content {
        order: 0; /* Reset order */
    }
    .school-image {
        height: 250px; /* Fixed height for stacked layout */
    }
}

@media (max-width: 768px) {
    .menu-toggle { display: block; }

    .menu-toggle.active .bar:nth-child(2) { opacity: 0; }
    .menu-toggle.active .bar:nth-child(1) { transform: translateY(8px) rotate(45deg); }
    .menu-toggle.active .bar:nth-child(3) { transform: translateY(-8px) rotate(-45deg); }

    .nav-menu {
        position: fixed;
        left: -100%;
        top: 66px; /* Adjust based on header height */
        flex-direction: column;
        background-color: var(--white);
        width: 100%;
        text-align: center;
        transition: 0.3s;
        box-shadow: 0 10px 15px rgba(0, 0, 0, 0.1);
        padding: 2rem 0;
        gap: 1.5rem;
    }

    .nav-menu.active { left: 0; }
    .nav-item { margin: 0; }
    .cta-item { margin-left: 0; margin-top: 1rem; }

    .hero-title { font-size: 3rem; }
    .hero-subtitle { font-size: 1.1rem; }

    .about-content,
    .structure-grid,
    .contact-content {
        grid-template-columns: 1fr;
    }

    .footer-content {
        grid-template-columns: 1fr;
        gap: 2rem;
        text-align: center; /* Center footer content */
    }
    .footer-logo, .footer-social {
        margin: 0 auto; /* Center logo and social icons */
    }
    .footer-links {
        grid-template-columns: repeat(2, 1fr);
        text-align: left; /* Align links left */
    }
    .footer-column h3::after {
        left: 50%; /* Center divider */
        transform: translateX(-50%);
    }
    .footer-content > div { /* Ensure footer columns take full width */
        width: 100%;
    }
}

@media (max-width: 576px) {
    :root {
        --h1-size: 2.5rem;
        --h2-size: 2rem;
        --h3-size: 1.35rem;
    }

    .hero-title { font-size: 2.5rem; }
    .hero-buttons { flex-direction: column; gap: 1rem; }

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

    .footer-links {
        grid-template-columns: 1fr;
    }
    .footer-column h3::after {
        left: 0; /* Align divider left */
        transform: none;
    }
    .footer-content {
        text-align: left; /* Align footer content left */
    }
     .footer-logo, .footer-social {
        margin: 0; /* Reset margin */
    }
}
.upload-wrapper {
    display: flex;
    flex-direction: column;
}

.custom-file-upload {
    border: 1px dashed #ccc;
    border-radius: 4px;
    padding: 15px;
    text-align: center;
    cursor: pointer;
    margin-bottom: 5px;
    background-color: #f9f9f9;
    transition: all 0.3s;
}

.custom-file-upload:hover {
    background-color: #f0f0f0;
    border-color: #aaa;
}

.file-info {
    display: none;
    margin-top: 10px;
    padding: 10px;
    background-color: #e9f7fe;
    border-radius: 4px;
    font-size: 14px;
}

.file-name {
    font-weight: 600;
    word-break: break-all;
}

.file-size {
    color: #666;
    margin-top: 5px;
}

.file-restriction {
    font-size: 13px;
    color: #777;
    margin-top: 5px;
}

.error-message {
    color: #d9534f;
    font-size: 14px;
    margin-top: 5px;
    display: none;
}