:root {
    --primary-blue: #0284c7; /* Darkish Sky Blue */
    --primary-hover: #005b99; /* Deeper Blue for active states */
    --bg-gradient: linear-gradient(135deg, #f0f9ff 0%, #f0fdf4 100%);
    --card-bg: #ffffff;
    --text-dark: #2d3748;
    --text-muted: #4a5568;
    --border-color: #e2e8f0;
    --radius: 12px;
    --transition: all 0.3s ease;
}

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

body {
    font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    color: var(--text-dark);
    background-color: #f8fafc;
    line-height: 1.6;
}

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 12px 24px;
    border-radius: var(--radius);
    font-weight: 600;
    text-decoration: none;
    transition: var(--transition);
    cursor: pointer;
    border: 2px solid transparent;
}

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

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

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

.btn-outline:hover {
    background-color: var(--primary-blue);
    color: #fff;
}

.btn-full {
    width: 100%;
    text-align: center;
}

/* Header & Nav */
.site-header {
    background: #fff;
    border-bottom: 1px solid var(--border-color);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.nav-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 80px;
}

.logo img {
    height: 45px;
    object-fit: contain;
}

.main-nav ul {
    display: flex;
    list-style: none;
    gap: 24px;
}

.main-nav a {
    text-decoration: none;
    color: var(--text-dark);
    font-weight: 500;
    transition: var(--transition);
}

.main-nav a:hover {
    color: var(--primary-blue);
}

.nav-cta {
    padding: 8px 18px;
}

.mobile-menu-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    flex-direction: column;
    gap: 5px;
}

.mobile-menu-toggle span {
    display: block;
    width: 25px;
    height: 3px;
    background: var(--text-dark);
    transition: var(--transition);
}

/* Sections Common */
section {
    padding: 80px 0;
}

.section-title {
    text-align: center;
    max-width: 700px;
    margin: 0 auto 50px auto;
}

.section-title h2 {
    font-size: 2.5rem;
    color: var(--primary-blue);
    margin-bottom: 15px;
}

.section-title p {
    color: var(--text-muted);
    font-size: 1.1rem;
}

/* Hero Section */
.hero-section {
    background: var(--bg-gradient);
    text-align: center;
    padding: 100px 0;
}

.hero-content h1 {
    font-size: 3.5rem;
    color: var(--primary-blue);
    margin-bottom: 20px;
}

.hero-content p {
    font-size: 1.25rem;
    color: var(--text-muted);
    max-width: 700px;
    margin: 0 auto 30px auto;
}

.hero-buttons {
    display: flex;
    gap: 15px;
    justify-content: center;
}

/* Grids */
.grid-2 {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    align-items: center;
}

.grid-3 {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 30px;
}

.grid-4 {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 25px;
}

/* Cards */
.feature-card, .program-card, .testimonial-card, .contact-form-wrapper {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    padding: 30px;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.05);
    transition: var(--transition);
}

.feature-card:hover, .program-card:hover, .testimonial-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 15px -3px rgba(2, 132, 199, 0.15);
}

.card-icon {
    font-size: 2.5rem;
    margin-bottom: 20px;
}

.feature-card h3, .program-card h3 {
    margin-bottom: 10px;
    color: var(--text-dark);
}

.card-link {
    display: inline-block;
    margin-top: 15px;
    color: var(--primary-blue);
    text-decoration: none;
    font-weight: 600;
}

/* Environment & Values */
.environment-values-section {
    background: #fff;
}

.image-grid-4 {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 15px;
}

.image-grid-4 img {
    width: 100%;
    height: 160px;
    object-fit: cover;
    border-radius: var(--radius);
    transition: var(--transition);
}

.image-grid-4 img:hover {
    transform: scale(1.02);
}

.values-col h2 {
    font-size: 2.2rem;
    color: var(--primary-blue);
    margin-bottom: 20px;
}

.value-item {
    margin-bottom: 20px;
}

.value-item h4 {
    color: var(--primary-blue);
    font-size: 1.1rem;
    margin-bottom: 5px;
}

/* Languages We Teach */
.languages-section {
    background: var(--bg-gradient);
}

.languages-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 20px;
}

.lang-card {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    padding: 25px;
    text-align: center;
    cursor: default;
    transition: var(--transition);
}

.lang-card:hover {
    background-color: var(--primary-blue);
    border-color: var(--primary-blue);
    transform: translateY(-3px);
    box-shadow: 0 10px 20px -10px rgba(2, 132, 199, 0.5);
}

.lang-card h3 {
    color: var(--primary-blue);
    margin-bottom: 5px;
    transition: var(--transition);
}

.lang-card p {
    color: var(--text-muted);
    transition: var(--transition);
}

.lang-card:hover h3,
.lang-card:hover p {
    color: #ffffff;
}

/* Testimonials */
.testimonial-card .stars {
    color: #f59e0b;
    margin-bottom: 15px;
}

.student-info {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-top: 20px;
}

.avatar {
    width: 40px;
    height: 40px;
    background: var(--primary-blue);
    color: #fff;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
}

/* Contact Section */
.contact-section {
    background: #fff;
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
}

.contact-info h2 {
    color: var(--primary-blue);
    font-size: 2.2rem;
    margin-bottom: 10px;
}

.info-item {
    display: flex;
    gap: 20px;
    margin-top: 30px;
}

.info-icon {
    font-size: 1.8rem;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
}

.form-group input, .form-group select, .form-group textarea {
    width: 100%;
    padding: 12px;
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    font-family: inherit;
    font-size: 1rem;
}

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

/* Multi-Column Footer */
.site-footer {
    background: var(--primary-blue);
    color: #fff;
    padding: 60px 0 20px 0;
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 40px;
    margin-bottom: 40px;
}

.footer-col h4 {
    font-size: 1.1rem;
    margin-bottom: 20px;
    color: #fff;
    border-bottom: 2px solid rgba(255, 255, 255, 0.2);
    padding-bottom: 8px;
    display: inline-block;
}

.footer-col p, .footer-col ul {
    font-size: 0.95rem;
    color: rgba(255, 255, 255, 0.85);
    line-height: 1.8;
}

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

.footer-col ul li a {
    color: rgba(255, 255, 255, 0.85);
    text-decoration: none;
    transition: var(--transition);
}

.footer-col ul li a:hover {
    color: #fff;
    text-decoration: underline;
}

.footer-brand {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 15px;
}

.footer-logo-badge {
    background: #fff;
    color: var(--primary-blue);
    font-weight: bold;
    padding: 8px 12px;
    border-radius: 8px;
    font-size: 1.1rem;
}

.footer-brand small {
    display: block;
    font-size: 0.8rem;
    color: rgba(255, 255, 255, 0.7);
}

.footer-bottom {
    text-align: center;
    padding-top: 20px;
    border-top: 1px solid rgba(255, 255, 255, 0.15);
    font-size: 0.9rem;
    color: rgba(255, 255, 255, 0.75);
}

/* Responsive Media Queries */
@media (max-width: 968px) {
    .grid-2, .contact-grid {
        grid-template-columns: 1fr;
    }
    
    .hero-content h1 {
        font-size: 2.8rem;
    }

    .main-nav {
        display: none;
        position: absolute;
        top: 80px;
        left: 0;
        width: 100%;
        background: #fff;
        border-bottom: 1px solid var(--border-color);
        box-shadow: 0 10px 15px rgba(0,0,0,0.05);
    }

    .main-nav.active {
        display: block;
    }

    .main-nav ul {
        flex-direction: column;
        padding: 20px;
        gap: 15px;
    }

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

    .nav-cta {
        display: none;
    }
}

/* values.html   */
/* Numbered list styling for Why Choose section */
.why-list-item {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-bottom: 18px;
}

.why-list-item:last-child {
    margin-bottom: 0;
}

.badge-num {
    background: var(--primary-blue);
    color: #fff;
    width: 32px;
    height: 32px;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    font-size: 0.95rem;
    flex-shrink: 0;
}

/* courses.html  */
/* Pricing & Course Tables */
.table-responsive {
    width: 100%;
    overflow-x: auto;
    background: #fff;
    border-radius: 12px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.05);
}

.course-table {
    width: 100%;
    border-collapse: collapse;
    text-align: left;
    font-size: 0.95rem;
}

.course-table th {
    background: var(--primary-blue);
    color: #fff;
    padding: 15px;
    font-weight: 600;
}

.course-table td {
    padding: 15px;
    border-bottom: 1px solid #eee;
    color: #333;
    vertical-align: middle;
}

.course-table tbody tr:last-child td {
    border-bottom: none;
}

.course-table tbody tr:hover {
    background-color: #f9f9fb;
}

/* fees.html  */
/* Fees Tab Styling */
.tab-btn {
    background: #f1f1f5;
    color: #444;
    border: none;
    transition: all 0.3s ease;
}

.tab-btn.active, .tab-btn:hover {
    background: var(--primary-blue);
    color: #fff;
}