@keyframes skeletonMove{0%{background-position:-200% 0}to{background-position:200% 0}}.skeleton{background:linear-gradient(90deg,#f5d5e88c 25%,#ffe6f2e6 50%,#f5d5e88c 75%) 0 0/200% 100%;border-radius:12px;animation:1.5s ease-in-out infinite skeletonMove}body.dark .skeleton{background:linear-gradient(90deg,#421526b3 25%,#5a1c34e6 50%,#421526b3 75%) 0 0/200% 100%;animation:1.5s ease-in-out infinite skeletonMove}@keyframes rippleAnim{0%{opacity:.45;transform:scale(0)}to{opacity:0;transform:scale(4.5)}}.ripple-host{position:relative;overflow:hidden}.ripple-circle{pointer-events:none;transform-origin:50%;background:#ffffff8c;border-radius:50%;animation:.55s ease-out both rippleAnim;position:absolute}.ls-title-hero{letter-spacing:-.3px;font-size:clamp(18px,5vw,26px);line-height:1.25}.ls-title-card{letter-spacing:-.1px;font-size:clamp(13px,3.5vw,15px);line-height:1.4}.ls-title-quiz{font-size:clamp(12px,3vw,14px);line-height:1.3}.ls-question-text{letter-spacing:.1px;font-size:clamp(13px,3.8vw,15px);line-height:1.75}.ls-passage-text{letter-spacing:.15px;font-size:clamp(12px,3.2vw,14px);line-height:1.85}.ls-option-text{letter-spacing:.05px;font-size:clamp(13px,3.5vw,14px);line-height:1.6}.ls-label-sm{letter-spacing:.4px;font-size:clamp(10px,2.5vw,11px)}.ls-desc{letter-spacing:.1px;font-size:clamp(11px,3vw,13px);line-height:1.65}.ls-hist-title{letter-spacing:0;font-size:clamp(12px,3.2vw,13px);line-height:1.45}.ls-tf-text{letter-spacing:.1px;font-size:clamp(12px,3.4vw,13px);line-height:1.75}.ls-lesson-grid{grid-template-columns:1fr;gap:10px;display:grid}@media (width>=600px){.ls-lesson-grid{grid-template-columns:repeat(2,1fr);gap:12px}}@media (width>=900px){.ls-lesson-grid{grid-template-columns:repeat(3,1fr);gap:14px}}.ls-lesson-grid>.fade-up{flex-direction:column;height:100%;display:flex}.ls-section-gap{margin-bottom:20px}.ls-section-gap-lg{margin-bottom:28px}.ls-body-pad{padding:clamp(12px,4vw,20px) clamp(12px,4vw,20px) 80px}body{-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;text-rendering:optimizelegibility}