.spinner-modern{width:32px;height:32px;border:3px solid var(--color-neutral-200);border-top-color:var(--color-brand-accent);border-radius:var(--radius-full);animation:spin 1s linear infinite}.spinner-modern--sm{width:20px;height:20px;border-width:2px}.spinner-modern--lg{width:48px;height:48px;border-width:4px}.skeleton-modern{background:linear-gradient(90deg,var(--color-neutral-200) 25%,var(--color-neutral-100) 50%,var(--color-neutral-200) 75%);background-size:200% 100%;animation:skeleton 1.5s ease-in-out infinite;border-radius:var(--radius-md)}.skeleton-card-modern{background:var(--bg-secondary);border-radius:var(--radius-xl);box-shadow:var(--shadow-sm);overflow:hidden}.skeleton-card-modern__header{height:110px}.skeleton-card-modern__title{height:24px;width:80%;margin:var(--space-4) var(--space-4) var(--space-2)}.skeleton-card-modern__text{height:16px;width:60%;margin:0 var(--space-4) var(--space-2)}.skeleton-card-modern__text:last-child{width:40%;margin-bottom:var(--space-4)}.course-card-skeleton-modern{background:var(--bg-secondary);border-radius:var(--radius-xl);box-shadow:var(--shadow-sm);overflow:hidden;margin-bottom:var(--space-4)}.course-card-skeleton-modern__header{height:60px;background:linear-gradient(90deg,var(--color-neutral-200) 25%,var(--color-neutral-100) 50%,var(--color-neutral-200) 75%);background-size:200% 100%;animation:skeleton 1.5s ease-in-out infinite}.course-card-skeleton-modern__body{padding:var(--space-5)}.course-card-skeleton-modern__title{height:24px;width:70%;margin-bottom:var(--space-3);background:linear-gradient(90deg,var(--color-neutral-200) 25%,var(--color-neutral-100) 50%,var(--color-neutral-200) 75%);background-size:200% 100%;animation:skeleton 1.5s ease-in-out infinite;border-radius:var(--radius-md)}.course-card-skeleton-modern__text{height:16px;width:90%;margin-bottom:var(--space-2);background:linear-gradient(90deg,var(--color-neutral-200) 25%,var(--color-neutral-100) 50%,var(--color-neutral-200) 75%);background-size:200% 100%;animation:skeleton 1.5s ease-in-out infinite;border-radius:var(--radius-md)}.course-card-skeleton-v2{background:var(--bg-secondary);border-radius:var(--radius-xl);box-shadow:var(--shadow-sm);padding:var(--space-6);display:flex;flex-direction:column;height:100%;min-height:280px}.course-card-skeleton-v2__badge{width:80px;height:28px;border-radius:var(--radius-full);margin-bottom:var(--space-4);background:linear-gradient(90deg,var(--color-neutral-200) 25%,var(--color-neutral-100) 50%,var(--color-neutral-200) 75%);background-size:200% 100%;animation:skeleton 1.5s ease-in-out infinite}.course-card-skeleton-v2__title{height:22px;width:85%;margin-bottom:var(--space-3);border-radius:var(--radius-md);background:linear-gradient(90deg,var(--color-neutral-200) 25%,var(--color-neutral-100) 50%,var(--color-neutral-200) 75%);background-size:200% 100%;animation:skeleton 1.5s ease-in-out infinite}.course-card-skeleton-v2__text{height:14px;width:100%;margin-bottom:var(--space-2);border-radius:var(--radius-sm);background:linear-gradient(90deg,var(--color-neutral-200) 25%,var(--color-neutral-100) 50%,var(--color-neutral-200) 75%);background-size:200% 100%;animation:skeleton 1.5s ease-in-out infinite}.course-card-skeleton-v2__text:last-of-type{width:60%}.course-card-skeleton-v2__features{display:flex;gap:var(--space-2);margin-top:auto;padding-top:var(--space-4);border-top:1px dashed var(--color-neutral-200)}.course-card-skeleton-v2__feature{height:24px;width:80px;border-radius:var(--radius-full);background:linear-gradient(90deg,var(--color-neutral-200) 25%,var(--color-neutral-100) 50%,var(--color-neutral-200) 75%);background-size:200% 100%;animation:skeleton 1.5s ease-in-out infinite}.course-card-skeleton-v2__footer{display:flex;justify-content:space-between;align-items:center;margin-top:var(--space-4);padding-top:var(--space-4);border-top:1px solid var(--color-neutral-200)}.course-card-skeleton-v2__price{height:24px;width:60px;border-radius:var(--radius-md);background:linear-gradient(90deg,var(--color-neutral-200) 25%,var(--color-neutral-100) 50%,var(--color-neutral-200) 75%);background-size:200% 100%;animation:skeleton 1.5s ease-in-out infinite}.course-card-skeleton-v2__button{height:32px;width:90px;border-radius:var(--radius-asymmetric-sm);background:linear-gradient(90deg,var(--color-neutral-200) 25%,var(--color-neutral-100) 50%,var(--color-neutral-200) 75%);background-size:200% 100%;animation:skeleton 1.5s ease-in-out infinite}.empty-state-modern{text-align:center;padding:var(--space-12) var(--space-6)}.empty-state-modern__icon{font-size:80px;color:var(--color-neutral-300);margin-bottom:var(--space-6)}.empty-state-modern__title{font-size:var(--font-size-2xl);font-weight:var(--font-weight-bold);color:var(--color-neutral-700);margin-bottom:var(--space-3)}.empty-state-modern__text{font-size:var(--font-size-base);color:var(--color-neutral-500);margin-bottom:var(--space-6)}