/* ===== CSS RESET & BASE STYLES ===== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* Pastel Blue Color Palette */
    --primary-blue: #87CEEB;
    --primary-blue-light: #B0E0E6;
    --primary-blue-dark: #3990F9;
    --accent-blue: #ADD8E6;
    --gradient-start: #3990F9;
    --gradient-end: #4682B4;
    
    /* Neutral Colors */
    --white: #FFFFFF;
    --off-white: #FAFBFC;
    --light-gray: #F5F7FA;
    --gray: #8B949E;
    --dark-gray: #21262D;
    --black: #0D1117;
    
    /* Typography */
    --font-primary: 'Inter', 'SF Pro Display', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-weight-light: 300;
    --font-weight-regular: 400;
    --font-weight-medium: 500;
    --font-weight-semibold: 600;
    --font-weight-bold: 700;
    --font-weight-extrabold: 800;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-xxl: 4rem;
    
    /* Shadows */
    --shadow-sm: 0 1px 3px rgba(135, 206, 235, 0.1);
    --shadow-md: 0 4px 14px rgba(135, 206, 235, 0.15);
    --shadow-lg: 0 10px 25px rgba(135, 206, 235, 0.2);
    --shadow-xl: 0 20px 40px rgba(135, 206, 235, 0.25);
    
    /* Border Radius */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    
    /* Transitions */
    --transition-fast: 0.2s ease-out;
    --transition-normal: 0.3s ease-out;
    --transition-slow: 0.5s ease-out;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-primary);
    font-weight: var(--font-weight-regular);
    line-height: 1.6;
    color: var(--dark-gray);
    background-color: var(--off-white);
    overflow-x: hidden;
}
.nav-logo a{
    align-items: center;
    display: flex;
    gap: 15px;
    text-decoration: none;
}
/* ===== UTILITY CLASSES ===== */
.gradient-text {
    background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

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

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

.section-title {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: var(--font-weight-bold);
    color: var(--dark-gray);
    margin-bottom: var(--spacing-sm);
}

.section-subtitle {
    font-size: clamp(1rem, 2vw, 1.25rem);
    color: var(--gray);
    max-width: 600px;
    margin: 0 auto;
}

/* Footer Procedures Menu Styles */
.footer-content {
    display: flex;
    flex-direction: column;
    gap: 30px;
}

.footer-main {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.footer-procedures {
    border-top: 1px solid #333;
    padding-top: 30px;
}

.footer-procedures h4 {
    color: #fff;
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 20px;
    text-align: center;
}

.procedures-menu {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 25px;
}

.procedure-specialty h5 {
    color: #fff;
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 10px;
    padding-bottom: 5px;
    border-bottom: 1px solid #444;
}

.procedure-specialty a {
    display: block;
    color: #ccc;
    text-decoration: none;
    font-size: 13px;
    padding: 4px 0;
    transition: color 0.3s ease;
}

.procedure-specialty a:hover {
    color: #fff;
}

.procedure-specialty a.coming-soon {
    color: #888;
    cursor: not-allowed;
    position: relative;
}

.procedure-specialty a.coming-soon::after {
    content: " (Soon)";
    font-size: 10px;
    color: #666;
    font-weight: 500;
}

/* Mobile Responsive for Footer Procedures */
@media (max-width: 768px) {
    .footer-main {
        flex-direction: column;
        gap: 20px;
        text-align: center;
    }
    
    .procedures-menu {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
    }
    
    .footer-procedures h4 {
        font-size: 16px;
    }
    
    .procedure-specialty h5 {
        font-size: 13px;
    }
    
    .procedure-specialty a {
        font-size: 12px;
    }
}

@media (max-width: 480px) {
    .procedures-menu {
        grid-template-columns: 1fr;
        gap: 15px;
    }
    
    .procedure-specialty {
        text-align: center;
    }
}

/* ===== FOOTER ARTICLES SECTION ===== */
.footer-articles {
    border-top: 1px solid #333;
    padding-top: 30px;
    margin-top: 30px;
}

.footer-articles h4 {
    color: #fff;
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 20px;
    text-align: center;
}

.articles-menu {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 25px;
}

.article-specialty h6 {
    color: #fff;
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 10px;
    padding-bottom: 5px;
    border-bottom: 1px solid #444;
}

.article-specialty a {
    display: block;
    color: #ccc;
    text-decoration: none;
    font-size: 13px;
    padding: 4px 0;
    transition: color 0.3s ease;
}

.article-specialty a:hover {
    color: #fff;
}

/* Mobile Responsive for Footer Articles */
@media (max-width: 768px) {
    .articles-menu {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
    }
    
    .footer-articles h4 {
        font-size: 16px;
    }
    
    .article-specialty h6 {
        font-size: 13px;
    }
    
    .article-specialty a {
        font-size: 12px;
    }
}

@media (max-width: 480px) {
    .articles-menu {
        grid-template-columns: 1fr;
        gap: 15px;
    }
    
    .article-specialty {
        text-align: center;
    }
}

/* ===== NAVIGATION ===== */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(135, 206, 235, 0.1);
    z-index: 1000;
    transition: var(--transition-fast);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 70px;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.logo {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-sm);
}

.logo-text {
    font-size: 1.5rem;
    font-weight: var(--font-weight-bold);
    color: var(--primary-blue-dark);
}

.nav-buttons {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
}

.nav-link {
    text-decoration: none;
    color: var(--dark-gray);
    font-weight: var(--font-weight-medium);
    transition: var(--transition-fast);
}

.nav-link:hover {
    color: var(--primary-blue-dark);
}

.cta-button {
    background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
    color: var(--white);
    padding: 12px 24px;
    border-radius: var(--radius-lg);
    text-decoration: none;
    font-weight: var(--font-weight-semibold);
    box-shadow: var(--shadow-md);
    transition: var(--transition-normal);
}

.cta-button:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

/* ===== HERO SECTION ===== */
.hero {
    padding: 120px 0 80px;
    background: linear-gradient(135deg, var(--off-white) 0%, rgba(135, 206, 235, 0.05) 100%);
}

.hero-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xxl);
    align-items: center;
}

.hero-title {
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: var(--font-weight-extrabold);
    line-height: 1.1;
    margin-bottom: var(--spacing-lg);
    color: var(--dark-gray);
}

.hero-subtitle {
    font-size: clamp(1.1rem, 2.5vw, 1.5rem);
    color: var(--gray);
    margin-bottom: var(--spacing-xl);
    line-height: 1.6;
}

.hero-stats {
    display: flex;
    justify-content: center;
    gap: var(--spacing-xl);
    margin-top: var(--spacing-xl);
}

.stat {
    text-align: center;
}

.stat-number {
    display: block;
    font-size: 2rem;
    font-weight: var(--font-weight-bold);
    color: var(--primary-blue-dark);
}

.stat-label {
    font-size: 0.9rem;
    color: var(--gray);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* ===== HERO COURSE CAROUSEL ===== */
.hero-courses {
    display: flex;
    justify-content: center;
    align-items: center;
}

.hero-course-carousel {
    width: 100%;
    max-width: 1000px;
    overflow: hidden;
    border-radius: var(--radius-lg);
    position: relative;
}

.hero-course-track {
    display: flex;
    gap: var(--spacing-lg);
    animation: none; /* Remove automatic CSS animation, use JS instead */
    transition: transform 0.5s ease-in-out;
}

.hero-course-controls {
    position: absolute;
    top: 50%;
    left: 0;
    right: 0;
    transform: translateY(-50%);
    display: flex;
    justify-content: space-between;
    padding: 0 var(--spacing-md);
    pointer-events: none;
    z-index: 10;
    opacity: 0;
    transition: opacity var(--transition-normal);
}

.hero-course-carousel:hover .hero-course-controls {
    opacity: 1;
}

.hero-course-btn {
    width: 50px;
    height: 50px;
    border: none;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.95);
    color: var(--primary-blue-dark);
    font-size: 1.2rem;
    font-weight: bold;
    cursor: pointer;
    box-shadow: var(--shadow-lg);
    transition: var(--transition-normal);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(135, 206, 235, 0.2);
    pointer-events: auto;
    opacity: 0.8;
}

.hero-course-btn:hover {
    background: var(--primary-blue);
    color: var(--white);
    transform: scale(1.1);
    box-shadow: var(--shadow-xl);
    opacity: 1;
}

.hero-course-btn:disabled {
    opacity: 0.3;
    cursor: not-allowed;
    transform: none;
}

.hero-course-btn.prev {
    left: var(--spacing-md);
}

.hero-course-btn.next {
    right: var(--spacing-md);
}

/* ===== IMAGE CAROUSEL ===== */
.image-carousel {
    display: flex;
    justify-content: center;
    align-items: center;
    margin-bottom: var(--spacing-xxl);
}

.image-carousel-container {
    position: relative;
    width: 600px;
    height: 400px;
    overflow: hidden;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-xl);
    background: var(--white);
    border: 1px solid rgba(135, 206, 235, 0.1);
}

.image-carousel-container::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, var(--off-white) 0%, rgba(135, 206, 235, 0.05) 100%);
    z-index: -1;
}

.image-carousel-track {
    display: flex;
    width: 500%;
    height: 100%;
    transition: transform var(--transition-slow);
}

.image-slide {
    width: 20%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-md);
}

.carousel-image {
    width: 100%;
    height: 100%;
    object-fit: contain;
    object-position: center;
    border-radius: var(--radius-md);
    transition: var(--transition-normal);
    filter: drop-shadow(0 4px 8px rgba(0, 0, 0, 0.1));
}

.carousel-image:hover {
    transform: scale(1.02);
}

.image-carousel-indicators {
    position: absolute;
    bottom: var(--spacing-lg);
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: var(--spacing-sm);
    z-index: 10;
}

.image-indicator {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.5);
    cursor: pointer;
    transition: var(--transition-fast);
}

.image-indicator.active {
    background: var(--primary-blue);
    transform: scale(1.2);
}

.image-indicator:hover {
    background: rgba(255, 255, 255, 0.8);
}

.phone-mockup {
    position: relative;
    width: 300px;
    height: 600px;
    background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
    border-radius: var(--radius-xl);
    display: flex;
    justify-content: center;
    align-items: center;
    box-shadow: var(--shadow-xl);
    animation: float 6s ease-in-out infinite;
}

.app-preview {
    width: 80px;
    height: 80px;
    border-radius: var(--radius-md);
}

@keyframes float {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-20px); }
}

/* ===== COURSES SECTION ===== */
.courses {
    padding: 80px 0;
    background: var(--white);
}

.course-card {
    background: var(--white);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    box-shadow: var(--shadow-md);
    border: 1px solid rgba(135, 206, 235, 0.1);
    transition: var(--transition-normal);
    min-width: 320px;
    height: auto;
    min-height: 520px;
    position: relative;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    box-sizing: border-box;
}

.course-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
}

.course-card.featured {
    background: linear-gradient(135deg, rgba(135, 206, 235, 0.05) 0%, rgba(176, 224, 230, 0.1) 100%);
    border: 2px solid var(--primary-blue);
}

.course-badge {
    position: absolute;
    top: var(--spacing-sm);
    right: var(--spacing-sm);
    background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
    color: var(--white);
    padding: 6px 12px;
    border-radius: var(--radius-sm);
    font-size: 0.8rem;
    font-weight: var(--font-weight-semibold);
}

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

.course-title {
    font-size: 1.5rem;
    font-weight: var(--font-weight-bold);
    color: var(--dark-gray);
    margin-bottom: var(--spacing-sm);
}

.course-content {
    flex: 1;
    display: flex;
    flex-direction: column;
}

.course-description {
    color: var(--gray);
    margin-bottom: var(--spacing-lg);
    line-height: 1.6;
    flex-grow: 1;
}

.course-features {
    margin-bottom: var(--spacing-lg);
}

.course-cta {
    margin-top: auto;
}

.feature {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-sm);
    color: var(--dark-gray);
    padding: 8px 12px;
    border-radius: var(--radius-sm);
    transition: var(--transition-fast);
}

.feature.highlighted {
    background: linear-gradient(135deg, rgba(135, 206, 235, 0.1) 0%, rgba(176, 224, 230, 0.15) 100%);
    border: 1px solid rgba(135, 206, 235, 0.3);
    font-weight: var(--font-weight-semibold);
    color: var(--primary-blue-dark);
}

.feature-icon {
    font-size: 1.2rem;
}

.course-btn {
    width: 100%;
    padding: 14px 24px;
    border: none;
    border-radius: var(--radius-md);
    font-weight: var(--font-weight-semibold);
    cursor: pointer;
    transition: var(--transition-normal);
    font-size: 1rem;
}

.course-btn.primary {
    background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
    color: var(--white);
    box-shadow: var(--shadow-md);
}

.course-btn.primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.course-btn:not(.primary) {
    background: var(--light-gray);
    color: var(--dark-gray);
    border: 1px solid rgba(135, 206, 235, 0.2);
}

.course-btn:not(.primary):hover {
    background: var(--primary-blue);
    color: var(--white);
}

.carousel-controls {
    display: flex;
    justify-content: center;
    gap: var(--spacing-md);
    margin-top: var(--spacing-xl);
}

.carousel-btn {
    width: 50px;
    height: 50px;
    border: none;
    border-radius: 50%;
    background: var(--white);
    color: var(--primary-blue-dark);
    font-size: 1.2rem;
    font-weight: bold;
    cursor: pointer;
    box-shadow: var(--shadow-md);
    transition: var(--transition-normal);
}

.carousel-btn:hover {
    background: var(--primary-blue);
    color: var(--white);
    transform: scale(1.1);
}

/* ===== TESTIMONIALS SECTION ===== */
.testimonials {
    padding: 80px 0;
    background: var(--light-gray);
}

.testimonial-carousel {
    overflow: hidden;
    border-radius: var(--radius-lg);
}

.testimonial-track {
    display: flex;
    gap: var(--spacing-lg);
    animation: testimonialScroll 30s linear infinite;
    padding: var(--spacing-sm);
}

.testimonial-card {
    background: var(--white);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    box-shadow: var(--shadow-md);
    min-width: 300px;
    border: 1px solid rgba(135, 206, 235, 0.1);
}

.testimonial-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-md);
}

.testimonial-name {
    font-weight: var(--font-weight-semibold);
    color: var(--dark-gray);
}

.testimonial-role {
    font-size: 0.9rem;
    color: var(--gray);
}

.rating {
    display: flex;
    gap: 2px;
}

.star {
    width: 16px;
    height: 16px;
    background: var(--primary-blue);
    clip-path: polygon(50% 0%, 61% 35%, 98% 35%, 68% 57%, 79% 91%, 50% 70%, 21% 91%, 32% 57%, 2% 35%, 39% 35%);
}

.star.partial {
    background: linear-gradient(90deg, var(--primary-blue) 60%, var(--light-gray) 60%);
}

.testimonial-text {
    color: var(--gray);
    line-height: 1.6;
    font-style: italic;
}

@keyframes testimonialScroll {
    0% { transform: translateX(0); }
    100% { transform: translateX(-50%); }
}

/* ===== DOWNLOAD SECTION ===== */
.download {
    padding: 80px 0;
    background: linear-gradient(135deg, var(--primary-blue) 0%, var(--primary-blue-dark) 100%);
    color: var(--white);
}

.download-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xxl);
    align-items: center;
}

.download-title {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: var(--font-weight-bold);
    margin-bottom: var(--spacing-lg);
}

.download-subtitle {
    font-size: clamp(1rem, 2vw, 1.25rem);
    margin-bottom: var(--spacing-xl);
    opacity: 0.9;
}

.download-buttons {
    display: flex;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
}

.download-btn img {
    height: 60px;
    transition: var(--transition-normal);
}

.download-btn:hover img {
    transform: scale(1.05);
}

.social-links {
    margin-top: var(--spacing-lg);
    display: flex;
    gap: var(--spacing-md);
    flex-wrap: wrap;
}

.social-link {
    color: var(--white);
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: 12px 20px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-md);
    transition: var(--transition-normal);
}

.social-link:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: translateY(-2px);
}

.phone-mockup-large {
    position: relative;
    width: 250px;
    height: 500px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-xl);
    display: flex;
    justify-content: center;
    align-items: center;
    margin: 0 auto;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.app-interface {
    width: 60px;
    height: 60px;
    border-radius: var(--radius-md);
}

/* ===== FOOTER ===== */
.footer {
    background: var(--dark-gray);
    color: var(--white);
    padding: var(--spacing-xxl) 0 var(--spacing-lg);
}

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

.footer-content {
    display: flex;
    flex-direction: column;
    gap: 30px;
    margin-bottom: var(--spacing-xl);
}

.footer-main {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.footer-logo-img {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-sm);
}

.footer-logo-text {
    font-size: 1.5rem;
    font-weight: var(--font-weight-bold);
}

.footer-links {
    display: flex;
    gap: var(--spacing-xl);
    align-items: center;
}

.footer-links a {
    color: var(--white);
    text-decoration: none;
    opacity: 0.8;
    transition: var(--transition-fast);
}

.footer-links a:hover {
    opacity: 1;
    color: var(--primary-blue);
}

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

.company-details {
    margin-bottom: var(--spacing-lg);
    opacity: 0.7;
}

.company-details p {
    margin-bottom: var(--spacing-xs);
}

.footer-copyright {
    opacity: 0.8;
}

.footer-copyright p {
    margin: 0;
    color: var(--text-light);
    font-size: 0.9rem;
}

/* Footer Policy Links */
.footer-policies {
    margin-top: 1rem;
    padding-top: 1rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.policy-links {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 1.5rem;
}

.policy-links a {
    color: var(--text-light);
    text-decoration: none;
    font-size: 0.9rem;
    transition: color 0.3s ease;
    padding: 0.25rem 0;
}

.policy-links a:hover {
    color: var(--primary);
    text-decoration: underline;
}

@media (max-width: 768px) {
    .policy-links {
        gap: 1rem;
        flex-direction: column;
        align-items: center;
    }
    
    .policy-links a {
        font-size: 0.8rem;
    }
}

/* ===== RESPONSIVE DESIGN ===== */
@media (max-width: 1024px) {
    .hero-container,
    .download-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-xl);
        text-align: center;
    }
    
    .hero-stats {
        justify-content: center;
    }
    
    .image-carousel-container {
        width: 500px;
        height: 350px;
    }
    
    .hero-course-carousel {
        max-width: 800px;
    }
    
    .course-card {
        height: auto;
        min-height: 480px;
    }
    
    .hero-course-btn {
        width: 45px;
        height: 45px;
        font-size: 1.1rem;
    }
}

@media (max-width: 768px) {
    .nav-container {
        padding: 0 var(--spacing-md);
    }
    
    .nav-buttons {
        gap: var(--spacing-md);
    }
    
    .nav-link {
        display: none;
    }
    
    .section-container {
        padding: 0 var(--spacing-md);
    }
    
    .hero {
        padding: 100px 0 60px;
    }
    
    .courses,
    .testimonials,
    .download {
        padding: 60px 0;
    }
    
    .hero-stats {
        flex-direction: column;
        gap: var(--spacing-lg);
    }
    
    .image-carousel-container {
        width: 350px;
        height: 250px;
    }
    
    .hero-course-carousel {
        max-width: 350px;
    }
    
    .course-card {
        min-width: 300px;
        height: auto;
        min-height: 450px;
        padding: var(--spacing-lg);
        box-sizing: border-box;
    }
    
    .course-title {
        font-size: 1.3rem;
    }
    
    .course-description {
        font-size: 0.9rem;
        line-height: 1.5;
    }
    
    .feature {
        padding: 6px 10px;
        margin-bottom: 8px;
    }
    
    .hero-course-btn {
        width: 40px;
        height: 40px;
        font-size: 1rem;
    }
    
    .hero-course-controls {
        padding: 0 var(--spacing-sm);
    }
    
    .phone-mockup {
        width: 250px;
        height: 500px;
    }
    
    .download-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .footer-main {
        flex-direction: column;
        gap: var(--spacing-lg);
        text-align: center;
    }
    
    .footer-links {
        flex-wrap: wrap;
        justify-content: center;
    }
}

@media (max-width: 480px) {
    .course-card {
        min-width: 280px;
        height: auto;
        min-height: 420px;
        padding: var(--spacing-md);
        box-sizing: border-box;
    }
    
    .course-title {
        font-size: 1.2rem;
        margin-bottom: 8px;
    }
    
    .course-description {
        font-size: 0.85rem;
        line-height: 1.4;
        margin-bottom: var(--spacing-md);
    }
    
    .course-icon {
        font-size: 2.5rem;
        margin-bottom: 12px;
    }
    
    .feature {
        padding: 4px 8px;
        margin-bottom: 6px;
        font-size: 0.9rem;
    }
    
    .feature-icon {
        font-size: 1rem;
    }
    
    .course-btn {
        padding: 12px 20px;
        font-size: 0.9rem;
    }
    
    .hero-course-btn {
        width: 35px;
        height: 35px;
        font-size: 0.9rem;
    }
    
    .hero-course-controls {
        padding: 0 8px;
        opacity: 1; /* Always show on mobile for touch interaction */
    }
    
    .testimonial-card {
        min-width: 250px;
        padding: var(--spacing-lg);
    }
    
    .download-btn img {
        height: 50px;
    }
    
    .phone-mockup-large {
        width: 200px;
        height: 400px;
    }
}

/* ===== PERFORMANCE OPTIMIZATIONS ===== */
.course-card,
.testimonial-card,
.cta-button,
.course-btn {
    will-change: transform;
}

/* Reduce motion for users who prefer it */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    
    .phone-mockup {
        animation: none;
    }
    
    .testimonial-track {
        animation: none;
    }
    
    .hero-carousel-track {
        transition: none;
    }
}

/* ===== LOADING STATES ===== */
.hero-slide-image {
    opacity: 0;
    animation: fadeInImage 0.5s ease-out forwards;
}

@keyframes fadeInImage {
    to {
        opacity: 1;
    }
}

.hero-carousel-container.loading {
    background: linear-gradient(135deg, var(--light-gray) 0%, rgba(135, 206, 235, 0.1) 100%);
}

.hero-carousel-container.loading::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 40px;
    height: 40px;
    border: 3px solid var(--primary-blue-light);
    border-top: 3px solid var(--primary-blue);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: translate(-50%, -50%) rotate(0deg); }
    100% { transform: translate(-50%, -50%) rotate(360deg); }
} 

/* ===== Footer: Collapsible Pathology Articles (Homepage) ===== */
.collapse-toggle {
    margin: 0 auto 12px;
    display: inline-block;
    background: #f1f3f5;
    border: 1px solid #e9ecef;
    border-radius: 10px;
    padding: 8px 12px;
    font-weight: 600;
    cursor: pointer;
    color: #1a1a1a;
}
.articles-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    justify-content: center;
}
.article-chip {
    display: inline-block;
    padding: 8px 12px;
    border-radius: 999px;
    background: #eef5ff;
    border: 1px solid #d7e6ff;
    color: #0b5ed7;
    text-decoration: none;
    font-weight: 600;
}
.article-chip:hover { background: #e0efff; }

/* Ensure elements with the [hidden] attribute are always hidden,
   even if other selectors set display values */
[hidden] { display: none !important; }