/* ============================================
   CSS Root Variables
   ============================================ */
:root {
    /* Colors - Deep Navy Blue, Gold, White */
    --color-navy: #0a1929;
    --color-navy-dark: #051421;
    --color-navy-light: #1a365d;
    --color-gold: #d4af37;
    --color-gold-light: #f4d03f;
    --color-gold-dark: #b8941f;
    --color-white: #ffffff;
    --color-gray-light: #f8f9fa;
    --color-gray: #e9ecef;
    --color-gray-dark: #6c757d;
    --color-text: #2c3e50;
    --color-text-light: #6c757d;

    /* Typography */
    --font-primary: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    --font-weight-light: 300;
    --font-weight-normal: 400;
    --font-weight-medium: 500;
    --font-weight-semibold: 600;
    --font-weight-bold: 700;

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

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

    /* Shadows */
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.15);
    --shadow-gold: 0 4px 15px rgba(212, 175, 55, 0.3);

    /* Border Radius */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;

    /* Container */
    --container-max-width: 1200px;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-primary);
    font-size: 16px;
    line-height: 1.6;
    color: var(--color-text);
    background-color: var(--color-white);
    overflow-x: hidden;
}

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

h1 {
    font-size: clamp(2rem, 5vw, 3.5rem);
}

h2 {
    font-size: clamp(1.75rem, 4vw, 2.5rem);
}

h3 {
    font-size: clamp(1.25rem, 3vw, 1.75rem);
}

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

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

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

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

.navbar.scrolled {
    background-color: rgba(255, 255, 255, 0.98);
    box-shadow: var(--shadow-md);
    backdrop-filter: blur(10px);
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-md) var(--spacing-md);
}

.nav-logo {
    display: flex;
    align-items: center;
}

.logo-link {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    text-decoration: none;
    transition: var(--transition-fast);
}

.logo-link:hover {
    opacity: 0.9;
}

.logo-img {
    width: 45px;
    height: 45px;
    display: block;
    flex-shrink: 0;
    transition: var(--transition-normal);
}

.logo-link:hover .logo-img {
    transform: scale(1.05);
}

.nav-logo h2 {
    font-size: 1.25rem;
    color: var(--color-navy);
    margin: 0;
    font-weight: var(--font-weight-bold);
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: var(--spacing-lg);
    align-items: center;
}

.nav-link {
    color: var(--color-text);
    font-weight: var(--font-weight-medium);
    padding: var(--spacing-xs) 0;
    position: relative;
    transition: var(--transition-fast);
}

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

.nav-link:hover,
.nav-link.active {
    color: var(--color-gold);
}

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

.nav-toggle {
    display: none;
    flex-direction: column;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--spacing-xs);
    gap: 4px;
}

.nav-toggle span {
    width: 25px;
    height: 2px;
    background-color: var(--color-navy);
    transition: var(--transition-fast);
}

/* ============================================
   Hero Section
   ============================================ */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--color-navy) 0%, var(--color-navy-dark) 100%);
    background-image: url('https://res.cloudinary.com/dh8nuwcxn/image/upload/v1767629702/sample2_rubvsq.jpg');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    color: var(--color-white);
    text-align: center;
    padding-top: 80px;
    overflow: hidden;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(10, 25, 41, 0.85) 0%, rgba(5, 20, 33, 0.30) 100%);
    z-index: 0;
}

.hero-content {
    position: relative;
    z-index: 1;
    max-width: 800px;
    padding: var(--spacing-xl) var(--spacing-md);
}

.hero-title {
    font-size: clamp(2.5rem, 6vw, 4rem);
    font-weight: var(--font-weight-bold);
    margin-bottom: var(--spacing-md);
    color: var(--color-white);
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
}

.hero-subtitle {
    font-size: clamp(1rem, 2.5vw, 1.25rem);
    margin-bottom: var(--spacing-xl);
    color: rgba(255, 255, 255, 0.9);
    line-height: 1.8;
}

/* ============================================
   Buttons
   ============================================ */
.btn {
    display: inline-block;
    padding: var(--spacing-md) var(--spacing-xl);
    font-size: 1rem;
    font-weight: var(--font-weight-semibold);
    text-align: center;
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: var(--transition-normal);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.btn-primary {
    background-color: var(--color-gold);
    color: var(--color-navy);
    box-shadow: var(--shadow-gold);
}

.btn-primary:hover {
    background-color: var(--color-gold-light);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(212, 175, 55, 0.4);
}

/* ============================================
   Sections
   ============================================ */
.section {
    padding: var(--spacing-xxl) 0;
}

.section-header {
    text-align: center;
    margin-bottom: var(--spacing-xl);
}

.section-title {
    font-size: clamp(2rem, 4vw, 2.5rem);
    margin-bottom: var(--spacing-md);
    color: var(--color-navy);
}

.section-line {
    width: 80px;
    height: 4px;
    background: linear-gradient(90deg, transparent, var(--color-gold), transparent);
    margin: 0 auto var(--spacing-md);
}

.section-description {
    font-size: 1.1rem;
    color: var(--color-text-light);
    max-width: 600px;
    margin: 0 auto;
}

/* ============================================
   About Section
   ============================================ */
.about {
    background-color: var(--color-gray-light);
}

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

.about-text .lead {
    font-size: 1.25rem;
    font-weight: var(--font-weight-medium);
    color: var(--color-navy);
    margin-bottom: var(--spacing-md);
}

.about-text p {
    font-size: 1.05rem;
    line-height: 1.8;
    color: var(--color-text);
    margin-bottom: var(--spacing-md);
}

/* ============================================
   Video Section
   ============================================ */
.video {
    background-color: var(--color-gray-light);
}

.video-container {
    max-width: 900px;
    margin: var(--spacing-xl) auto 0;
    padding: var(--spacing-lg);
    background-color: var(--color-white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    overflow: hidden;
    display: none;
}

.video-container.active {
    display: block;
    animation: fadeIn 0.5s ease-in;
}

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

.video-slider {
    position: relative;
    max-width: 900px;
    margin: var(--spacing-xl) auto 0;
}

.video-container iframe {
    display: block;
    width: 100%;
    height: auto;
    border-radius: var(--radius-md);
}

.video-controls {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: var(--spacing-lg);
    margin-top: var(--spacing-lg);
}

.video-btn {
    background-color: var(--color-navy);
    border: 2px solid var(--color-gold);
    color: var(--color-gold);
    font-size: 1.5rem;
    cursor: pointer;
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-lg);
    transition: var(--transition-fast);
    min-width: 45px;
    min-height: 45px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.video-btn:hover {
    background-color: var(--color-gold);
    color: var(--color-navy);
    transform: scale(1.1);
}

.video-dots {
    display: flex;
    gap: var(--spacing-sm);
}

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

.video-dot.active {
    background-color: var(--color-gold);
    transform: scale(1.3);
}

/* Mobile responsive video */
@media (max-width: 768px) {
    .video-slider {
        margin: var(--spacing-lg) auto 0;
    }

    .video-container {
        margin: 0;
        padding: var(--spacing-md);
    }

    .video-btn {
        min-width: 40px;
        min-height: 40px;
        font-size: 1.2rem;
    }

    .video-controls {
        gap: var(--spacing-md);
        margin-top: var(--spacing-md);
    }
}

/* ============================================
   Programs Section
   ============================================ */
.programs {
    background-color: var(--color-white);
}

.programs-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-lg);
    margin-top: var(--spacing-xl);
}

.program-card {
    background-color: var(--color-white);
    border: 1px solid var(--color-gray);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    text-align: center;
    transition: var(--transition-normal);
    box-shadow: var(--shadow-sm);
}

.program-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
    border-color: var(--color-gold);
}

.program-icon {
    font-size: 3rem;
    margin-bottom: var(--spacing-md);
}

.program-title {
    font-size: 1.5rem;
    color: var(--color-navy);
    margin-bottom: var(--spacing-sm);
}

.program-description {
    color: var(--color-text-light);
    line-height: 1.7;
}

/* ============================================
   Gallery Section
   ============================================ */
.gallery {
    background-color: var(--color-white);
}

.gallery-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-md);
    margin-top: var(--spacing-xl);
}

.gallery-item {
    position: relative;
    overflow: hidden;
    border-radius: var(--radius-lg);
    aspect-ratio: 4 / 3;
    cursor: pointer;
    box-shadow: var(--shadow-sm);
    transition: var(--transition-normal);
}

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

.gallery-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition-normal);
}

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

.gallery-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: linear-gradient(to top, rgba(10, 25, 41, 0.9) 0%, transparent 100%);
    padding: var(--spacing-lg);
    color: var(--color-white);
    transform: translateY(100%);
    transition: var(--transition-normal);
}

.gallery-item:hover .gallery-overlay {
    transform: translateY(0);
}

.gallery-overlay h3 {
    font-size: 1.25rem;
    color: var(--color-white);
    margin: 0;
    font-weight: var(--font-weight-semibold);
}

/* ============================================
   Gallery Modal / Lightbox
   ============================================ */
.gallery-modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.95);
    z-index: 1000;
    justify-content: center;
    align-items: center;
    opacity: 0;
    transition: opacity var(--transition-normal);
}

.gallery-modal.active {
    display: flex;
    opacity: 1;
}

.gallery-modal-content {
    position: relative;
    max-width: 90%;
    max-height: 90vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-lg);
}

.modal-image {
    width: 100%;
    height: auto;
    max-height: 70vh;
    object-fit: contain;
    border-radius: var(--radius-lg);
    animation: zoomIn 0.3s ease-out;
}

@keyframes zoomIn {
    from {
        transform: scale(0.9);
        opacity: 0;
    }
    to {
        transform: scale(1);
        opacity: 1;
    }
}

.modal-caption {
    color: var(--color-white);
    font-size: 1.1rem;
    text-align: center;
    padding: 0 var(--spacing-lg);
}

.gallery-modal-close {
    position: absolute;
    top: 20px;
    right: 20px;
    background: none;
    border: none;
    color: var(--color-white);
    font-size: 2.5rem;
    cursor: pointer;
    transition: var(--transition-fast);
    padding: 0;
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.gallery-modal-close:hover {
    transform: scale(1.2);
    color: var(--color-gold);
}

.gallery-modal-nav {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background: rgba(255, 255, 255, 0.2);
    border: 2px solid var(--color-white);
    color: var(--color-white);
    font-size: 2rem;
    cursor: pointer;
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-lg);
    transition: var(--transition-fast);
    min-width: 50px;
    min-height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.gallery-modal-nav:hover {
    background: rgba(255, 255, 255, 0.3);
    border-color: var(--color-gold);
    color: var(--color-gold);
}

.gallery-modal-prev {
    left: 20px;
}

.gallery-modal-next {
    right: 20px;
}

/* Mobile responsive gallery modal */
@media (max-width: 768px) {
    .gallery-modal-nav {
        font-size: 1.5rem;
        padding: var(--spacing-xs) var(--spacing-sm);
        min-width: 40px;
        min-height: 40px;
    }

    .gallery-modal-prev {
        left: 10px;
    }

    .gallery-modal-next {
        right: 10px;
    }

    .gallery-modal-close {
        top: 10px;
        right: 10px;
        font-size: 2rem;
        width: 40px;
        height: 40px;
    }

    .modal-image {
        max-height: 60vh;
    }
}

/* ============================================
   Features Section
   ============================================ */
.features {
    background-color: var(--color-gray-light);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-lg);
    margin-top: var(--spacing-xl);
}

.feature-item {
    background-color: var(--color-white);
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    text-align: center;
    transition: var(--transition-normal);
    box-shadow: var(--shadow-sm);
}

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

.feature-icon {
    font-size: 3rem;
    margin-bottom: var(--spacing-md);
}

.feature-title {
    font-size: 1.25rem;
    color: var(--color-navy);
    margin-bottom: var(--spacing-sm);
}

.feature-description {
    color: var(--color-text-light);
    line-height: 1.7;
}

/* ============================================
   Testimonials Section
   ============================================ */
.testimonials {
    background-color: var(--color-white);
}

.testimonials-slider {
    max-width: 800px;
    margin: var(--spacing-xl) auto 0;
    position: relative;
}

.testimonials-track {
    position: relative;
    overflow: hidden;
    border-radius: var(--radius-lg);
}

.testimonial-slide {
    display: none;
    padding: var(--spacing-xl);
    background-color: var(--color-gray-light);
    border-radius: var(--radius-lg);
}

.testimonial-slide.active {
    display: block;
    animation: fadeIn 0.5s ease-in;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.testimonial-content {
    text-align: center;
}

.testimonial-stars {
    color: var(--color-gold);
    font-size: 1.5rem;
    margin-bottom: var(--spacing-md);
}

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

.testimonial-author strong {
    display: block;
    font-size: 1.1rem;
    color: var(--color-navy);
    margin-bottom: var(--spacing-xs);
}

.testimonial-author span {
    color: var(--color-text-light);
    font-size: 0.95rem;
}

.testimonials-controls {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
}

.testimonial-btn {
    background-color: var(--color-navy);
    color: var(--color-white);
    border: none;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    font-size: 1.5rem;
    cursor: pointer;
    transition: var(--transition-normal);
    display: flex;
    align-items: center;
    justify-content: center;
}

.testimonial-btn:hover {
    background-color: var(--color-gold);
    color: var(--color-navy);
    transform: scale(1.1);
}

.testimonials-dots {
    display: flex;
    gap: var(--spacing-sm);
}

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

.dot.active {
    background-color: var(--color-gold);
    transform: scale(1.2);
}

/* ============================================
   Contact Section
   ============================================ */
.contact {
    background-color: var(--color-gray-light);
}

.contact-content {
    max-width: 1200px;
    margin: var(--spacing-xl) auto 0;
}

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

.contact-item {
    gap: var(--spacing-md);
    padding: var(--spacing-lg);
    background-color: var(--color-white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    transition: var(--transition-normal);
}

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

.contact-icon {
    font-size: 2.5rem;
    flex-shrink: 0;
}

.contact-details h3 {
    font-size: 1.25rem;
    color: var(--color-navy);
    margin-bottom: var(--spacing-xs);
}

.contact-details p {
    color: var(--color-text-light);
    line-height: 1.8;
    margin: 0;
}

/* ============================================
   Footer
   ============================================ */
.footer {
    background-color: var(--color-navy);
    color: var(--color-white);
    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(--color-gold);
    margin-bottom: var(--spacing-md);
}

.footer-section p {
    color: rgba(255, 255, 255, 0.8);
    line-height: 1.8;
}

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

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

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

.footer-links a:hover {
    color: var(--color-gold);
    padding-left: var(--spacing-xs);
}

.social-links {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

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

.social-links a:hover {
    color: var(--color-gold);
}

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

.footer-bottom p {
    color: rgba(255, 255, 255, 0.6);
    margin: 0;
}

/* ============================================
   Animations
   ============================================ */
.fade-in {
    opacity: 0;
    transform: translateY(30px);
    animation: fadeInUp 0.8s ease-out forwards;
}

.fade-in:nth-child(1) {
    animation-delay: 0.1s;
}

.fade-in:nth-child(2) {
    animation-delay: 0.3s;
}

.fade-in:nth-child(3) {
    animation-delay: 0.5s;
}

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

/* ============================================
   Scroll Animations
   ============================================ */
.fade-in-section {
    opacity: 0;
    transform: translateY(50px);
    transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

.fade-in-section.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ============================================
   Responsive Design
   ============================================ */
@media (max-width: 768px) {
    .logo-img {
        width: 40px;
        height: 40px;
    }

    .nav-logo h2 {
        font-size: 1.1rem;
    }

    .nav-menu {
        position: fixed;
        left: -100%;
        top: 70px;
        flex-direction: column;
        background-color: var(--color-white);
        width: 100%;
        text-align: center;
        transition: var(--transition-normal);
        box-shadow: var(--shadow-md);
        padding: var(--spacing-lg) 0;
        gap: var(--spacing-md);
    }

    .nav-menu.active {
        left: 0;
    }

    .nav-toggle {
        display: flex;
    }

    .nav-toggle.active span:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px);
    }

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

    .nav-toggle.active span:nth-child(3) {
        transform: rotate(-45deg) translate(7px, -6px);
    }

    .hero {
        min-height: 90vh;
    }

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

    .programs-grid,
    .features-grid,
    .gallery-grid {
        grid-template-columns: 1fr;
    }

    .contact-info {
        grid-template-columns: 1fr;
    }

    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .logo-img {
        width: 35px;
        height: 35px;
    }

    .nav-logo h2 {
        font-size: 0.95rem;
    }

    .logo-link {
        gap: var(--spacing-xs);
    }

    .container {
        padding: 0 var(--spacing-sm);
    }

    .hero-content {
        padding: var(--spacing-lg) var(--spacing-sm);
    }

    .program-card,
    .feature-item,
    .contact-item {
        padding: var(--spacing-md);
    }
}