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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', system-ui, -apple-system, sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #ffffff;
}

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

/* Colors */
:root {
    --teal: #52AFA2;
    --teal-dark: #4a9b8e;
    --white: #ffffff;
    --gray-50: #f9fafb;
    --gray-100: #f3f4f6;
    --gray-600: #6b7280;
    --gray-700: #374151;
    --gray-900: #111827;
}

.text-teal {
    color: var(--teal);
}

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(10px);
    z-index: 1000;
    border-bottom: 1px solid var(--gray-100);
}

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

.nav-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 64px;
}

.brand-text {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--gray-900);
}

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

.nav-link {
    text-decoration: none;
    color: var(--gray-900);
    font-weight: 500;
    transition: color 0.3s ease;
}

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

.nav-cta {
    background: var(--teal);
    color: white;
    padding: 8px 24px;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s ease;
}

.nav-cta:hover {
    background: var(--teal-dark);
    transform: scale(1.05);
}

.mobile-menu-btn {
    display: none;
    flex-direction: column;
    cursor: pointer;
    gap: 4px;
}

.hamburger {
    width: 25px;
    height: 3px;
    background: var(--gray-900);
    transition: 0.3s;
}

.mobile-menu {
    display: none;
    padding: 20px;
    background: white;
    border-top: 1px solid var(--gray-100);
}

.mobile-nav-link {
    display: block;
    padding: 12px 0;
    text-decoration: none;
    color: var(--gray-900);
    font-weight: 500;
    transition: color 0.3s ease;
}

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

.mobile-nav-cta {
    display: block;
    background: var(--teal);
    color: white;
    padding: 12px 24px;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 500;
    text-align: center;
    margin-top: 16px;
    transition: all 0.3s ease;
}

.mobile-nav-cta:hover {
    background: var(--teal-dark);
}

/* Hero Section */
.hero {
    padding-top: 64px;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #ffffff 0%, var(--gray-50) 100%);
}

.hero-content {
    text-align: center;
    padding: 80px 0;
}

.hero-title {
    font-size: clamp(3rem, 8vw, 5rem);
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: 24px;
    line-height: 1.1;
}

.hero-subtitle {
    font-size: clamp(1.5rem, 4vw, 2rem);
    color: var(--gray-700);
    margin-bottom: 32px;
    font-weight: 300;
}

.hero-description {
    font-size: clamp(1rem, 2vw, 1.25rem);
    color: var(--gray-600);
    margin-bottom: 48px;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
    line-height: 1.7;
}

.hero-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
    justify-content: center;
    align-items: center;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 16px 32px;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    font-size: 1.125rem;
    transition: all 0.3s ease;
    border: 2px solid transparent;
}

.btn-primary {
    background: var(--teal);
    color: white;
    box-shadow: 0 10px 25px rgba(82, 175, 162, 0.3);
}

.btn-primary:hover {
    background: var(--teal-dark);
    transform: translateY(-2px);
    box-shadow: 0 15px 35px rgba(82, 175, 162, 0.4);
}

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

.btn-secondary:hover {
    background: var(--teal);
    color: white;
    transform: translateY(-2px);
}

.btn-white {
    background: white;
    color: var(--teal);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
}

.btn-white:hover {
    background: var(--gray-50);
    transform: translateY(-2px);
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.15);
}

.btn-outline {
    border: 2px solid white;
    color: white;
    background: transparent;
}

.btn-outline:hover {
    background: white;
    color: var(--teal);
    transform: translateY(-2px);
}

.arrow {
    transition: transform 0.3s ease;
}

.btn:hover .arrow {
    transform: translateX(4px);
}

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

.section-header {
    text-align: center;
    margin-bottom: 64px;
}

.section-title {
    font-size: clamp(2.5rem, 5vw, 3.5rem);
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: 24px;
}

.section-divider {
    width: 96px;
    height: 4px;
    background: var(--teal);
    margin: 0 auto 32px;
    border-radius: 2px;
}

.section-description {
    font-size: 1.25rem;
    color: var(--gray-600);
    max-width: 600px;
    margin: 0 auto;
    line-height: 1.7;
}

/* About Section */
.about {
    background: white;
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
    align-items: center;
}

.about-heading {
    font-size: clamp(1.75rem, 3vw, 2.25rem);
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: 24px;
}

.about-paragraph {
    font-size: 1.125rem;
    color: var(--gray-600);
    margin-bottom: 24px;
    line-height: 1.7;
}

.mission-card {
    background: linear-gradient(135deg, var(--teal) 0%, var(--teal-dark) 100%);
    border-radius: 24px;
    padding: 32px;
    color: white;
}

.mission-title {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 24px;
}

.mission-text {
    font-size: 1.125rem;
    line-height: 1.7;
    margin-bottom: 24px;
    opacity: 0.95;
}

.mission-footer {
    display: flex;
    align-items: center;
    gap: 16px;
}

.heart-icon {
    width: 48px;
    height: 48px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
}

.mission-tagline {
    font-size: 1.125rem;
    font-weight: 600;
}

/* Course Section */
.course {
    background: var(--gray-50);
}

.course-hero {
    margin-bottom: 64px;
}

.course-hero-content {
    background: linear-gradient(135deg, var(--teal) 0%, var(--teal-dark) 100%);
    border-radius: 24px;
    padding: 48px;
    text-align: center;
    color: white;
    box-shadow: 0 20px 40px rgba(82, 175, 162, 0.3);
}

.course-name {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 700;
    margin-bottom: 16px;
}

.course-subtitle {
    font-size: 1.25rem;
    margin-bottom: 32px;
    opacity: 0.95;
    line-height: 1.6;
}

.course-highlights {
    display: flex;
    justify-content: center;
    gap: 48px;
    flex-wrap: wrap;
}

.highlight-item {
    text-align: center;
}

.highlight-number {
    display: block;
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 8px;
}

.highlight-text {
    font-size: 1rem;
    opacity: 0.9;
    font-weight: 500;
}

.course-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 32px;
    margin-bottom: 64px;
}

.course-card {
    background: white;
    border-radius: 16px;
    padding: 32px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    transition: all 0.3s ease;
}

.course-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.12);
}

.course-icon {
    font-size: 2rem;
    margin-bottom: 24px;
    color: var(--teal);
    transition: transform 0.3s ease;
}

.course-card:hover .course-icon {
    transform: scale(1.1);
}

.course-title {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: 16px;
}

.course-description {
    color: var(--gray-600);
    line-height: 1.7;
}

.course-cta {
    background: white;
    border-radius: 24px;
    padding: 48px;
    text-align: center;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    border: 2px solid var(--teal);
}

.course-cta-title {
    font-size: 2rem;
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: 16px;
}

.course-cta-text {
    font-size: 1.125rem;
    color: var(--gray-600);
    margin-bottom: 32px;
    line-height: 1.6;
}

/* Testimonials Section */
.testimonials {
    background: white;
}

.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 32px;
}

.testimonial-card {
    background: var(--gray-50);
    border-radius: 16px;
    padding: 32px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    transition: all 0.3s ease;
}

.testimonial-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.12);
}

.stars {
    color: var(--teal);
    font-size: 1.25rem;
    margin-bottom: 16px;
}

.testimonial-text {
    font-size: 1.125rem;
    color: var(--gray-700);
    line-height: 1.7;
    margin-bottom: 24px;
    font-style: italic;
}

.author-name {
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: 4px;
}

.author-role {
    color: var(--teal);
    font-size: 0.875rem;
}

/* CTA Section */
.cta {
    background: linear-gradient(135deg, var(--teal) 0%, var(--teal-dark) 100%);
    color: white;
    text-align: center;
}

.cta-title {
    font-size: clamp(2.5rem, 5vw, 3.5rem);
    font-weight: 700;
    margin-bottom: 24px;
}

.cta-description {
    font-size: 1.25rem;
    margin-bottom: 48px;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
    line-height: 1.7;
    opacity: 0.95;
}

.cta-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
    justify-content: center;
    align-items: center;
}

/* Footer */
.footer {
    background: white;
    padding: 48px 0;
    border-top: 1px solid var(--gray-100);
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 48px;
    margin-bottom: 48px;
}

.footer-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: 16px;
}

.footer-description {
    color: var(--gray-600);
    line-height: 1.7;
    margin-bottom: 24px;
}

.social-links {
    display: flex;
    gap: 16px;
}

.social-link {
    width: 40px;
    height: 40px;
    background: var(--teal);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
}

.social-link:hover {
    background: var(--teal-dark);
    transform: scale(1.1);
}

.footer-heading {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--gray-900);
    margin-bottom: 16px;
}

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

.footer-list li {
    margin-bottom: 8px;
}

.footer-link {
    color: var(--gray-600);
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-link:hover {
    color: var(--teal);
}

.footer-bottom {
    border-top: 1px solid var(--gray-100);
    padding-top: 32px;
    text-align: center;
}

.footer-copyright {
    color: var(--gray-600);
}

/* Scroll to Top Button */
.scroll-top {
    position: fixed;
    bottom: 32px;
    right: 32px;
    width: 48px;
    height: 48px;
    background: var(--teal);
    color: white;
    border: none;
    border-radius: 50%;
    cursor: pointer;
    box-shadow: 0 4px 20px rgba(82, 175, 162, 0.3);
    transition: all 0.3s ease;
    opacity: 0;
    visibility: hidden;
    z-index: 1000;
}

.scroll-top.visible {
    opacity: 1;
    visibility: visible;
}

.scroll-top:hover {
    background: var(--teal-dark);
    transform: scale(1.1);
}

.arrow-up {
    font-size: 1.5rem;
    font-weight: bold;
}

/* Responsive Design */
@media (max-width: 768px) {
    .nav-menu {
        display: none;
    }
    
    .mobile-menu-btn {
        display: flex;
    }
    
    .mobile-menu.active {
        display: block;
    }
    
    .hero-buttons {
        flex-direction: column;
        align-items: stretch;
    }
    
    .btn {
        justify-content: center;
    }
    
    .about-grid {
        grid-template-columns: 1fr;
        gap: 32px;
    }
    
    .services-grid {
        grid-template-columns: 1fr;
    }
    
    .testimonials-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 32px;
    }
    
    .cta-buttons {
        flex-direction: column;
        align-items: stretch;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 16px;
    }
    
    section {
        padding: 60px 0;
    }
    
    .service-card,
    .testimonial-card {
        padding: 24px;
    }
    
    .mission-card {
        padding: 24px;
    }
}

/* Animation Classes */
.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.6s ease;
}

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

/* Mobile Menu Animation */
.mobile-menu-btn.active .hamburger:nth-child(1) {
    transform: rotate(-45deg) translate(-5px, 6px);
}

.mobile-menu-btn.active .hamburger:nth-child(2) {
    opacity: 0;
}

.mobile-menu-btn.active .hamburger:nth-child(3) {
    transform: rotate(45deg) translate(-5px, -6px);
}