.lazy-placeholder{background:linear-gradient(135deg,#dcdee3 0%,#dcdee3 100%);filter:blur(5px);transition:filter .3s ease-out}.lazy-loading{position:relative;overflow:hidden}.lazy-loading::after{content:'';position:absolute;top:0;left:0;right:0;bottom:0;background:linear-gradient(90deg,transparent,rgba(255,255,255,.4),transparent);animation:shimmer 1.5s infinite}@keyframes shimmer{0%{transform:translateX(-100%)}100%{transform:translateX(100%)}}.lazy-loaded{animation:fadeIn .3s ease-in-out}@keyframes fadeIn{from{opacity:0;filter:blur(5px)}to{opacity:1;filter:blur(0)}}.lazy-error{background:#f8f8f8;border:1px solid #dcdee3;position:relative}.lazy-error::after{content:'Failed to load';position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);color:#999;font-size:14px}.skeleton-loader{padding:1rem}.skeleton-card{background:#fff;border-radius:8px;overflow:hidden;box-shadow:0 2px 8px rgba(0,0,0,.1)}.skeleton-image{width:100%;height:200px;background:linear-gradient(90deg,#dcdee3 25%,#dcdee3 50%,#dcdee3 75%);background-size:200% 100%;animation:skeleton-loading 1.5s infinite}.skeleton-content{padding:1rem}.skeleton-line{height:16px;background:linear-gradient(90deg,#dcdee3 25%,#dcdee3 50%,#dcdee3 75%);background-size:200% 100%;animation:skeleton-loading 1.5s infinite;margin-bottom:.75rem;border-radius:4px}.skeleton-line:last-child{margin-bottom:0}@keyframes skeleton-loading{0%{background-position:200% 0}100%{background-position:-200% 0}}.bundle-skeleton{background:#fff;border-radius:12px;overflow:hidden;box-shadow:0 2px 8px rgba(0,0,0,.05);height:380px}.bundle-skeleton-image{width:100%;height:200px;background:linear-gradient(90deg,#dcdee3 25%,#dcdee3 50%,#dcdee3 75%);background-size:200% 100%;animation:skeleton-loading 1.5s infinite}.bundle-skeleton-content{padding:1.5rem}.bundle-skeleton-title{height:24px;background:linear-gradient(90deg,#dcdee3 25%,#dcdee3 50%,#dcdee3 75%);background-size:200% 100%;animation:skeleton-loading 1.5s infinite;margin-bottom:.75rem;border-radius:4px;width:80%}.bundle-skeleton-price{height:20px;background:linear-gradient(90deg,#dcdee3 25%,#dcdee3 50%,#dcdee3 75%);background-size:200% 100%;animation:skeleton-loading 1.5s infinite;margin-bottom:1rem;border-radius:4px;width:40%}.bundle-skeleton-button{height:40px;background:linear-gradient(90deg,#e8edf4 25%,#d3ddea 50%,#e8edf4 75%);background-size:200% 100%;animation:skeleton-loading 1.5s infinite;border-radius:50px}.lazy-pulse-loader{display:flex;justify-content:center;align-items:center;padding:2rem}.pulse{width:40px;height:40px;background:linear-gradient(135deg,#12315c 0%,#1b4278 100%);border-radius:50%;animation:pulse 1.5s ease-in-out infinite}@keyframes pulse{0%{transform:scale(.8);opacity:.7}50%{transform:scale(1.2);opacity:.3}100%{transform:scale(.8);opacity:.7}}.lazy-boundary{min-height:1px}img[data-src],img[data-srcset]{display:block;width:100%;height:auto;min-height:100px;background:#dcdee3}.bundle-image-container{position:relative;padding-bottom:75%;overflow:hidden;background:#f8f8f8}.bundle-image-container img{position:absolute;top:0;left:0;width:100%;height:100%;object-fit:cover}.school-logo-lazy{width:40px;height:40px;background:#dcdee3;border-radius:50%;display:inline-block}.infinite-scroll-loader{text-align:center;padding:2rem;display:none}.infinite-scroll-loader.active{display:block}.infinite-scroll-end{text-align:center;padding:2rem;color:#565b64;font-style:italic}@media(prefers-reduced-motion:reduce){.lazy-loaded,.skeleton-image,.skeleton-line,.lazy-loading::after{animation:none}.lazy-loaded{opacity:1;filter:none}}@media(max-width:768px){.skeleton-image,.bundle-skeleton-image{height:150px}.bundle-skeleton{height:320px}img[data-src],img[data-srcset]{min-height:80px}}@media(prefers-color-scheme:dark){.lazy-placeholder{background:linear-gradient(135deg,#565b64 0%,#1a1a1a 100%)}.lazy-error{background:#1a1a1a;border-color:#565b64}.skeleton-card,.bundle-skeleton{background:#1a1a1a}.skeleton-image,.skeleton-line,.bundle-skeleton-image,.bundle-skeleton-title,.bundle-skeleton-price{background:linear-gradient(90deg,#565b64 25%,#565b64 50%,#565b64 75%)}}.lazy-blur-up{filter:blur(20px);transform:scale(1.1);transition:filter .5s ease-out,transform .5s ease-out}.lazy-blur-up.lazy-loaded{filter:blur(0);transform:scale(1)}