.featured-courses-section{padding:var(--spacing-2xl) 0;background-color:var(--color-bg)}.featured-courses-container{max-width:1280px;margin:0 auto;padding:0 var(--spacing-md)}.featured-courses-header{text-align:center;margin-bottom:var(--spacing-xl)}.featured-courses-title{font-size:var(--font-size-3xl);font-weight:700;color:var(--color-text);margin-bottom:var(--spacing-sm)}.featured-courses-subtitle{font-size:var(--font-size-lg);color:var(--color-text-secondary)}.featured-courses-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:var(--spacing-lg);margin-bottom:var(--spacing-xl)}.featured-courses-footer{display:flex;justify-content:center;margin-top:var(--spacing-2xl)}.featured-courses-empty{display:flex;flex-direction:column;align-items:center;justify-content:center;padding:var(--spacing-2xl);gap:var(--spacing-lg);text-align:center}.featured-courses-empty p{font-size:var(--font-size-lg);color:var(--color-text-secondary)}@media (max-width:1024px){.featured-courses-grid{grid-template-columns:repeat(2,1fr)}}@media (max-width:768px){.featured-courses-section{padding:var(--spacing-xl) 0}.featured-courses-title{font-size:var(--font-size-2xl)}.featured-courses-subtitle{font-size:var(--font-size-base)}.featured-courses-grid{grid-template-columns:1fr}}.popular-courses-section{padding:var(--spacing-2xl) 0;background-color:var(--color-surface)}.popular-courses-container{max-width:1280px;margin:0 auto;padding:0 var(--spacing-md)}.popular-courses-header{text-align:center;margin-bottom:var(--spacing-xl)}.popular-courses-title{font-size:var(--font-size-3xl);font-weight:700;color:var(--color-text);margin-bottom:var(--spacing-sm)}.popular-courses-subtitle{font-size:var(--font-size-lg);color:var(--color-text-secondary)}.popular-courses-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:var(--spacing-lg);margin-bottom:var(--spacing-xl)}.popular-courses-footer{display:flex;justify-content:center;margin-top:var(--spacing-2xl)}.popular-courses-empty{display:flex;flex-direction:column;align-items:center;justify-content:center;padding:var(--spacing-2xl);gap:var(--spacing-lg);text-align:center}.popular-courses-empty p{font-size:var(--font-size-lg);color:var(--color-text-secondary)}.popular-courses-error,.popular-courses-loading{display:flex;flex-direction:column;align-items:center;justify-content:center;padding:var(--spacing-2xl);gap:var(--spacing-md)}.popular-courses-spinner{width:3rem;height:3rem;border:3px solid var(--color-border);border-top-color:var(--color-primary);border-radius:50%;animation:spin 1s linear infinite}@keyframes spin{to{transform:rotate(1turn)}}.popular-courses-error p,.popular-courses-loading p{font-size:var(--font-size-base);color:var(--color-text-secondary)}@media (max-width:1024px){.popular-courses-grid{grid-template-columns:repeat(2,1fr)}}@media (max-width:768px){.popular-courses-section{padding:var(--spacing-xl) 0}.popular-courses-title{font-size:var(--font-size-2xl)}.popular-courses-subtitle{font-size:var(--font-size-base)}.popular-courses-grid{grid-template-columns:1fr}}.testimonials-section{padding:5rem 1rem;background:linear-gradient(135deg,var(--color-surface) 0,var(--color-bg) 100%)}.testimonials-carousel{position:relative;overflow:hidden;max-width:900px;margin:0 auto}.carousel-track{display:flex;transition:transform .5s ease-in-out}.testimonial-card{min-width:100%;padding:3rem;background-color:var(--color-surface);border:2px solid var(--color-border);border-radius:var(--radius-lg);box-shadow:0 10px 30px rgba(0,0,0,.1)}@media (max-width:768px){.testimonial-card{padding:2rem}}.testimonial-header{display:flex;align-items:center;gap:1.5rem;margin-bottom:2rem}@media (max-width:640px){.testimonial-header{flex-direction:column;text-align:center}}.avatar-wrapper{flex-shrink:0}.testimonial-avatar{border-radius:var(--radius-full);border:3px solid var(--color-primary);-o-object-fit:cover;object-fit:cover}.testimonial-info{flex:1}.testimonial-name{font-size:1.5rem;font-weight:700;margin-bottom:.25rem;color:var(--color-text)}.testimonial-role{color:var(--color-text);opacity:.7;margin-bottom:.5rem}.testimonial-rating{display:flex;gap:.25rem}@media (max-width:640px){.testimonial-rating{justify-content:center}}.star-icon{width:20px;height:20px}.star-filled{color:#fbbf24}.star-empty{color:var(--color-border)}.testimonial-quote{font-size:1.125rem;line-height:1.8;color:var(--color-text);font-style:italic}.carousel-indicators{display:flex;justify-content:center;gap:.75rem;margin-top:2rem}.indicator{width:12px;height:12px;border-radius:var(--radius-full);background-color:var(--color-border);border:none;cursor:pointer;transition:all .3s ease}.indicator:hover{opacity:.7}.indicator.active,.indicator:hover{background-color:var(--color-primary)}.indicator.active{width:32px}.newsletter-section{padding:5rem 1rem;background:linear-gradient(135deg,var(--color-primary),var(--color-secondary))}.newsletter-container{max-width:800px;margin:0 auto}.newsletter-content{text-align:center;color:white}.newsletter-title{font-size:2.5rem;font-weight:800;margin-bottom:1rem}@media (max-width:768px){.newsletter-title{font-size:1.75rem}}.newsletter-subtitle{font-size:1.125rem;margin-bottom:2.5rem;opacity:.95}.newsletter-form{display:flex;gap:1rem;max-width:600px;margin:0 auto 1.5rem}@media (max-width:640px){.newsletter-form{flex-direction:column}}.newsletter-input{flex:1;padding:1rem 1.5rem;font-size:1rem;border:2px solid white;border-radius:var(--radius-md);background-color:rgba(255,255,255,.9);color:var(--color-text);outline:none;transition:all .3s ease}.newsletter-input:focus{background-color:white;box-shadow:0 0 0 3px rgba(255,255,255,.3)}.newsletter-input:disabled{opacity:.6;cursor:not-allowed}.newsletter-message{padding:1rem;border-radius:var(--radius-md);margin-bottom:1rem}.newsletter-message.success{background-color:rgba(34,197,94,.2);border:2px solid rgba(34,197,94,.5)}.newsletter-message.error{background-color:rgba(239,68,68,.2);border:2px solid rgba(239,68,68,.5)}.newsletter-privacy{font-size:.875rem;opacity:.8}