/* Vocabulary and grammar have independent learning surfaces. */
.n5-lesson{max-width:1100px;margin-inline:auto;padding:clamp(16px,3vw,32px)}
.lesson-section-intro{max-width:650px;margin-bottom:24px}.lesson-section-intro h2{font-size:clamp(24px,3vw,32px);margin:12px 0}.lesson-section-intro p{line-height:1.7;color:#48615c}
.lesson-word-cards{grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:16px}.lesson-word-cards .vocab{padding:22px 18px;min-height:165px;text-align:left;background:#fff;border:1px solid #c7dcd4;border-top:4px solid #216756;border-radius:16px;display:flex;flex-direction:column;align-items:flex-start;gap:8px}.lesson-word-cards .vocab strong{font-size:26px}.lesson-word-cards .vocab span{font-size:16px}.lesson-word-cards .vocab small{font-size:14px;color:#216756}.word-reading{color:#5b5276}.lesson-next{margin-top:24px;gap:12px;flex-wrap:wrap}
.visual-memory-card{min-width:0;background:#fff;border:1px solid #c7dcd4;border-radius:18px;padding:20px;overflow-wrap:anywhere}.visual-memory-card h3{font-size:21px;margin:0 0 16px}.visual-memory-card img{display:block;width:100%;height:auto;max-height:none;border-radius:12px}.visual-memory-card p{font-size:16px;line-height:1.7}.visual-memory-card a{color:#166256;font-size:16px}.lesson-memory-list{display:grid;gap:24px;margin:20px 0}.memory-grid{align-items:start}.inline-gloss{border-top:1px dashed #c9c0d4;padding-top:12px;font-size:14px;line-height:1.8;color:#504465}.inline-gloss span{display:inline-block;margin:0 14px 6px 0}.formula-lesson .lesson-roadmap{max-width:680px}.n5-lesson .formula-lesson .visual-step{margin:14px 0}.n5-lesson .formula-lesson .guided-topic{padding:clamp(14px,2vw,24px)}
.tabs{flex-wrap:wrap}.tabs button{min-height:48px;white-space:normal;font-size:16px}.tabs button.active{box-shadow:inset 0 -3px #216756}.lesson-cover img{width:100%;height:100%;object-fit:contain;background:#f3f8f5}.lesson-cover{overflow:hidden}.lesson-card-body p{line-height:1.65}
@media(max-width:680px){.lesson-word-cards{grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}.lesson-word-cards .vocab{padding:16px 12px;min-height:155px;overflow-wrap:anywhere}.lesson-word-cards .vocab strong{font-size:23px}.n5-lesson{padding:16px}.tabs{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:8px}.tabs button{margin:0;padding:12px 8px}.visual-memory-card{padding:14px}.memory-grid{grid-template-columns:1fr}.row.between label{max-width:100%;min-width:0}.row.between select{max-width:100%;width:100%}.lesson-next .button{width:100%}}
@media(max-width:360px){.lesson-word-cards{grid-template-columns:1fr}}