:root{--color-bg-primary:#f5f3f2;--color-dark-navy:#192c49;--color-accent-green:#6a9d38;--color-white:#fff;--color-text-secondary:#666;--color-border:#e0e0e0;--color-green-hover:#578329;--color-navy-hover:#0f1d2e;--font-heading:"Montserrat",sans-serif;--font-body:"Open Sans",sans-serif;--text-xs:12px;--text-sm:14px;--text-base:16px;--text-lg:18px;--text-xl:20px;--text-2xl:24px;--text-3xl:30px;--text-4xl:36px;--space-xs:8px;--space-sm:16px;--space-md:24px;--space-lg:32px;--space-xl:48px;--space-2xl:64px;--space-3xl:96px;--radius-sm:4px;--radius-md:8px;--radius-lg:12px;--transition-fast:0.15s ease;--transition-base:0.3s ease;--transition-slow:0.5s ease;--transition-smooth:all 0.6s cubic-bezier(0.4,0,0.2,1);--shadow-sm:0 2px 4px rgba(0,0,0,.08);--shadow-md:0 4px 8px rgba(0,0,0,.08);--shadow-lg:0 8px 16px rgba(0,0,0,.12);--shadow-xl:0 12px 24px rgba(0,0,0,.15)}*{box-sizing:border-box;margin:0;padding:0}body{background-color:var(--color-bg-primary);color:var(--color-dark-navy);font-family:var(--font-body);line-height:1.6;overflow-x:hidden}.course-section{margin:0;max-width:100%;padding:0}.section-header{background:var(--color-bg-primary);padding:var(--space-xl) var(--space-lg);text-align:center}.section-header,.section-header h2{color:var(--color-dark-navy);margin-bottom:var(--space-xs)}.section-header h2{font-family:var(--font-heading);font-size:var(--text-4xl);font-weight:300;letter-spacing:-.5px}.section-header p{color:var(--color-text-secondary);font-size:var(--text-lg);line-height:1.7;margin-bottom:-30px}.hero-section-3d{background-color:var(--color-bg-primary);margin-bottom:0;min-height:600px;overflow:hidden;padding:var(--space-lg) var(--space-lg) var(--space-xl)}.hero-container-3d,.hero-section-3d{align-items:center;display:flex;justify-content:center;position:relative;width:100%}.hero-container-3d{flex-direction:column;gap:0;max-width:1400px;z-index:2}.carousel-3d-wrapper-centered{align-items:center;animation:fadeInUp .8s ease-out;display:flex;flex-direction:column;gap:var(--space-md);justify-content:center;margin-top:15px;width:100%}@keyframes fadeInUp{0%{opacity:0;transform:translateY(30px)}to{opacity:1;transform:translateY(0)}}.carousel-3d-container{height:350px;max-width:650px;overflow:visible;perspective:1000px;position:relative;width:100%}.carousel-3d-track{height:100%;position:relative;transform-style:preserve-3d;transition:var(--transition-smooth);width:100%}.carousel-3d-item{background-color:#000;border-radius:12px;box-shadow:0 20px 60px rgba(25,44,73,.3);cursor:pointer;display:block;height:280px;left:50%;overflow:hidden;position:absolute;text-decoration:none;top:50%;transform-origin:center center;transition:transform .8s cubic-bezier(.4,0,.2,1),opacity .8s cubic-bezier(.4,0,.2,1),filter .3s ease;width:420px;will-change:transform,opacity}.carousel-3d-item[data-position=back],.carousel-3d-item[data-position=left],.carousel-3d-item[data-position=right]{cursor:pointer}.carousel-3d-item[data-position=back]:hover,.carousel-3d-item[data-position=left]:hover,.carousel-3d-item[data-position=right]:hover{filter:brightness(1.1)}.carousel-3d-item:before{background:linear-gradient(180deg,rgba(25,44,73,0),rgba(25,44,73,.8));bottom:0;content:"";left:0;pointer-events:none;position:absolute;right:0;top:0;transition:var(--transition-fast);z-index:2}.carousel-3d-item:hover:before{background:linear-gradient(180deg,rgba(25,44,73,0),rgba(25,44,73,.6))}.carousel-3d-item iframe{border:none;display:block;height:100%;width:100%}.item-content-3d{bottom:0;left:0;padding:var(--space-lg);pointer-events:none;position:absolute;right:0;transform:translateY(0);transition:var(--transition-fast);z-index:3}.item-category-3d{backdrop-filter:blur(10px);background:rgba(106,157,56,.2);border-radius:4px;color:var(--color-accent-green);display:inline-block;font-family:var(--font-body);font-size:12px;font-weight:600;letter-spacing:1.5px;margin-bottom:var(--space-xs);padding:6px 12px;text-transform:uppercase}.item-title-3d{color:var(--color-white);font-family:var(--font-heading);font-size:24px;font-weight:600;line-height:1.3;margin-bottom:8px}.item-description-3d{color:hsla(0,0%,100%,.95);font-family:var(--font-body);font-size:15px;line-height:1.6;opacity:1;transform:translateY(0)}@keyframes fadeInLeft{0%{opacity:0;transform:translateX(-30px)}to{opacity:1;transform:translateX(0)}}@keyframes fadeInRight{0%{opacity:0;transform:translateX(30px)}to{opacity:1;transform:translateX(0)}}.carousel-controls{display:flex;gap:var(--space-lg);margin-top:var(--space-md);padding:0}.carousel-arrow,.carousel-controls{align-items:center;justify-content:center}.carousel-arrow{background-color:var(--color-accent-green);border:2px solid rgba(106,157,56,.3);border-radius:50%;box-shadow:var(--shadow-sm);color:var(--color-white);cursor:pointer;display:flex!important;flex-shrink:0;height:44px;opacity:1!important;padding:10px;position:static;transform:none;transition:all var(--transition-base);visibility:visible!important;width:44px;z-index:10}.carousel-arrow:hover{background-color:var(--color-green-hover);border-color:var(--color-accent-green);box-shadow:var(--shadow-md);transform:scale(1.1)}.carousel-arrow svg{display:block;fill:currentColor;height:20px;width:20px}.carousel-dots{align-items:center;display:flex;gap:var(--space-sm);justify-content:center;padding:0}.carousel-dot{background-color:rgba(106,157,56,.25);border:none;border-radius:50%;cursor:pointer;height:12px;margin:0;padding:0;transition:all var(--transition-base);width:12px}.carousel-dot.active{background-color:var(--color-accent-green);border-radius:6px;width:36px}.carousel-dot:hover{background-color:rgba(106,157,56,.5);transform:scale(1.15)}.carousel-dot.active:hover{background-color:var(--color-accent-green)}.language-distribution-section{background:var(--color-white);padding:var(--space-2xl) var(--space-lg)}.language-stats-container{margin:0 auto;max-width:1200px}.language-section-header{margin-bottom:var(--space-xl);text-align:center}.language-section-title{color:var(--color-dark-navy);font-family:var(--font-heading);font-size:var(--text-4xl);font-weight:300;letter-spacing:-.5px;margin-bottom:var(--space-xs)}.language-section-subtitle{color:var(--color-text-secondary);font-family:var(--font-body);font-size:var(--text-lg);line-height:1.7;margin:0 auto;max-width:700px}.language-stats{background:transparent;border-radius:0;box-shadow:none;margin-top:0;padding:0;transition:none}.language-stats:hover{box-shadow:none;transform:none}.stats-header{display:none}.chart-container{flex-direction:column;gap:var(--space-xl);margin-top:var(--space-lg)}.chart-container,.pie-chart-wrapper{align-items:center;display:flex;justify-content:center}.pie-chart-wrapper{flex:0 0 auto}#languagePieChart{height:auto;max-width:450px;width:100%}.chart-legend{display:grid;gap:var(--space-sm);grid-template-columns:repeat(auto-fit,minmax(200px,1fr));max-width:900px;width:100%}.legend-item{align-items:center;background:var(--color-bg-primary);border-radius:var(--radius-sm);display:flex;min-width:0;padding:var(--space-sm);transition:background var(--transition-fast)}.legend-item:hover{background:rgba(106,157,56,.1);transform:translateY(-2px)}.legend-color{border-radius:4px;box-shadow:var(--shadow-sm);flex-shrink:0;height:18px;margin-right:var(--space-sm);width:18px}.legend-text{align-items:center;display:flex;flex:1;gap:var(--space-sm);justify-content:space-between;min-width:0}.legend-language{color:var(--color-dark-navy);flex:1;font-weight:600;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.legend-language,.legend-percentage{font-family:var(--font-body);font-size:var(--text-sm)}.legend-percentage{color:var(--color-accent-green);flex-shrink:0;font-weight:700}@media (max-width:1200px){.carousel-3d-item{height:250px;width:380px}.carousel-3d-container{height:320px}}@media (max-width:992px){.hero-container-3d{gap:var(--space-xl)}.carousel-3d-container{height:300px;margin:0 auto;max-width:600px}.carousel-3d-item{height:240px;width:360px}.chart-legend{grid-template-columns:repeat(auto-fit,minmax(180px,1fr))}}@media (max-width:768px){.hero-section-3d{min-height:auto;padding:var(--space-md) var(--space-md) var(--space-lg)}.section-header{margin-bottom:var(--space-md);padding:var(--space-xs) var(--space-xs) var(--space-xs)}.section-header h2{font-size:var(--text-3xl)}.section-header p{font-size:var(--text-base)}.carousel-3d-container{height:280px;perspective:800px}.carousel-3d-item{height:220px;width:340px}.item-content-3d{padding:var(--space-sm)}.item-title-3d{font-size:18px}.item-description-3d{display:none}#languagePieChart{max-width:350px}.chart-legend{grid-template-columns:repeat(2,1fr)}.carousel-controls{gap:var(--space-md)}.carousel-arrow{height:40px;padding:8px;width:40px}.carousel-arrow svg{height:18px;width:18px}.carousel-dots{gap:var(--space-xs)}.carousel-dot{height:10px;width:10px}.carousel-dot.active{width:28px}}@media (max-width:480px){.carousel-3d-container{height:240px;perspective:600px}.carousel-3d-item{height:190px;width:300px}.item-title-3d{font-size:16px}.item-category-3d{font-size:10px;padding:4px 8px}.item-content-3d{padding:var(--space-xs)}#languagePieChart{max-width:300px}.chart-legend{grid-template-columns:1fr}.legend-item{padding:var(--space-xs) var(--space-sm)}.legend-language,.legend-percentage{font-size:13px}.carousel-controls{gap:var(--space-sm)}.carousel-arrow{height:36px;padding:6px;width:36px}.carousel-arrow svg{height:16px;width:16px}}