.question-image{margin:15px 0 25px;padding:16px;background:#faf8fc;border:1px solid var(--line);border-radius:10px}.question-image img{display:block;max-width:100%;max-height:390px;min-height:180px;object-fit:contain;margin:auto;cursor:zoom-in}.question-image p{margin:12px 0 0;font-size:10px}.annotation{border:1px solid var(--line);border-radius:9px;background:#faf9fc;margin:20px 0;padding:18px}.annotation h3{margin:0;font-size:13px}.annotation select{display:block;margin-top:8px}.annotation textarea{margin:5px 0 10px;min-height:90px;background:#fff}.review-image{display:block;max-width:100%;max-height:260px;margin:15px 0;cursor:zoom-in}.review-row{line-height:1.8}.knowledge>summary:hover{background:#faf8fd}.hero .eyebrow{font-size:9px}.recite-box .actions{justify-content:flex-end}@media(max-width:750px){.annotation{padding:13px}.question-image{padding:10px}.question-image img{min-height:100px;max-height:280px}.stats small{font-size:10px}.recite-box .quiz-foot>.actions{gap:6px}.recite-box .button{padding:9px 12px}}@media print{.annotation{break-inside:avoid}.question-image{max-height:400px}}

.cloud-form{max-width:760px}.cloud-form label,.cloud-submission label{display:block;margin:14px 0;color:#625b6d;font-size:13px}.cloud-form input,.cloud-form select,.cloud-form textarea{display:block;width:100%;box-sizing:border-box;margin-top:7px;padding:12px;border:1px solid var(--line);border-radius:7px;background:white;font:inherit}.cloud-submission{padding:18px 0;border-bottom:1px solid var(--line)}.cloud-submission pre{white-space:pre-wrap;overflow-wrap:anywhere;font-size:12px}.cloud-form .actions{margin-top:18px}.badge{flex-shrink:0}
.figure-notes{border-top:1px solid var(--line);margin:12px 0;padding-top:8px}.figure-notes h4{font-size:12px;margin:9px 0 4px;color:#62558b}.figure-notes p{font-size:12px;line-height:1.8;margin:0}.atlas-card img{object-fit:contain;background:#faf9fc}.toolbar{flex-wrap:wrap}
.atlas-card img{width:100%;height:220px}.atlas-card h3{line-height:1.55;overflow-wrap:anywhere}.atlas-card .source{margin-top:12px}
@media(max-width:600px){.atlas-grid{grid-template-columns:minmax(0,1fr)}.heading-row{flex-wrap:wrap}.heading-row>.button{flex-shrink:0}.figure-notes p{font-size:13px}}

/* Shared community */
.community-tabs{display:flex;gap:6px;margin:0 0 22px;padding:5px;background:#fff;border:1px solid var(--line);border-radius:8px;overflow-x:auto}.community-tabs a{padding:10px 14px;border-radius:6px;color:#625b6d;white-space:nowrap;text-decoration:none}.community-tabs a.on{background:var(--pale);color:var(--purple);font-weight:600}.community-notice{margin-bottom:16px}.community-compose{margin-bottom:18px;padding:0}.community-compose>summary{display:flex;justify-content:space-between;gap:20px;padding:18px;cursor:pointer}.community-compose>summary span{color:var(--muted);font-size:12px}.community-compose form{padding:0 18px 18px}.community-compose label{display:block;margin:13px 0;color:#625b6d;font-size:12px}.community-compose input,.community-compose textarea,.community-compose select,.comment-form input,.profile-layout input,.profile-layout textarea{display:block;width:100%;box-sizing:border-box;margin-top:6px;padding:11px;border:1px solid var(--line);border-radius:7px;background:#fff;font:inherit}.community-feed{max-width:850px;margin:auto}.community-post{background:#fff;border:1px solid var(--line);border-radius:8px;padding:20px;margin-bottom:14px}.community-post>header{display:flex;align-items:center;gap:10px}.community-post>header>div{min-width:0;flex:1}.community-post>header b,.community-post>header span{display:block}.community-post>header span,.community-post time{font-size:11px;color:var(--muted)}.community-post time{white-space:nowrap}.user-avatar{width:38px;height:38px;flex:0 0 38px;border-radius:50%;object-fit:cover;background:#eee9f5}.user-avatar.fallback{display:grid;place-items:center;color:var(--purple);font-weight:700}.post-meta{display:flex;gap:6px;margin-top:16px}.community-post h2{font-size:18px;margin:10px 0}.post-body{line-height:1.8;overflow-wrap:anywhere}.post-attachments{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:8px;margin:14px 0}.post-image img,.post-video{display:block;width:100%;height:260px;object-fit:contain;background:#f7f6f9;border:1px solid var(--line);border-radius:6px}.resource-file{display:flex;align-items:center;gap:9px;padding:12px;border:1px solid var(--line);border-radius:6px;background:#faf9fc;color:#62558b;text-decoration:none;overflow:hidden}.resource-file span{flex:1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.resource-file small{color:var(--muted)}.post-actions{display:flex;flex-wrap:wrap;gap:7px;padding:10px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}.post-actions button,.comment button{border:0;background:transparent;color:#6c6475;cursor:pointer;padding:5px 8px}.post-actions button.on{color:var(--purple);font-weight:700}.comment-list{padding-top:8px}.comment{display:flex;gap:9px;padding:10px 0;border-bottom:1px solid #eeeaf1}.comment .user-avatar{width:28px;height:28px;flex-basis:28px}.comment>div{flex:1}.comment p{margin:3px 0;line-height:1.6}.comment small{color:var(--muted)}.comment-form{display:flex;align-items:flex-end;gap:8px;margin-top:12px}.comment-form input{margin:0}.is-hidden{opacity:.58}.profile-layout{display:grid;grid-template-columns:minmax(300px,42%) minmax(0,1fr);gap:18px;align-items:start}.profile-head{display:flex;align-items:center;gap:13px;margin-bottom:18px}.profile-head .user-avatar{width:56px;height:56px;flex-basis:56px}.compact-post{display:block;padding:12px 0;border-bottom:1px solid var(--line);color:#36303e;text-decoration:none}.compact-post span,.compact-post small{display:block}.compact-post small{margin-top:4px;color:var(--muted)}
@media(max-width:800px){.profile-layout{grid-template-columns:1fr}.community-feed{max-width:none}.post-attachments{grid-template-columns:1fr}.post-image img,.post-video{height:min(280px,65vw)}}
@media(max-width:520px){.community-post{padding:14px}.community-post>header{align-items:flex-start}.community-post time{white-space:normal;text-align:right}.community-compose>summary{display:block}.community-compose>summary span{display:block;margin-top:4px}.comment-form{align-items:stretch;flex-direction:column}.comment-form .button{align-self:flex-end}}
.study-pair,.recite-study-pair{display:grid;grid-template-columns:minmax(0,1fr) minmax(220px,34%);gap:24px;align-items:start}.study-media{margin:5px 0 12px;border:1px solid var(--line);background:#faf9fc;border-radius:8px;padding:10px;position:sticky;top:16px}.study-media img{display:block;width:100%;height:220px;object-fit:contain;cursor:zoom-in;background:#fff}.study-media figcaption{padding:9px 3px 2px;font-size:11px;line-height:1.55;color:var(--muted)}.study-media figcaption b,.study-media figcaption span{display:block}.study-media figcaption b{color:#625b6d;margin-bottom:3px}.recite-study-pair>.study-media{position:static}.recite-study-pair .reveal-space{padding:35px 10px}.recite-study-pair .recite-prompt{margin-top:10px}@media(max-width:800px){.study-pair,.recite-study-pair{grid-template-columns:1fr}.study-media{position:static;order:-1}.study-media img{height:min(280px,60vw)}}@media print{.study-pair{grid-template-columns:minmax(0,1fr) 220px}.study-media{position:static;break-inside:avoid}.study-media img{height:170px}}
.concept-index-hint{margin-bottom:20px}.concept-index{background:#fff;border:1px solid var(--line);border-radius:8px;margin-bottom:22px;padding:0 18px}.concept-index>summary{cursor:pointer;padding:15px 0;display:flex;justify-content:space-between;gap:15px;color:#625b6d}.concept-index>summary span{font-size:11px;color:var(--muted)}.concept-index-links{display:flex;flex-wrap:wrap;gap:8px;padding:0 0 17px}.concept-index-item{display:inline-flex;align-items:stretch;border:1px solid var(--line);border-radius:6px;overflow:hidden;background:#faf9fc}.concept-index-links button{border:0;background:transparent;color:#655d70;padding:7px 9px;font-size:11px;cursor:pointer}.concept-index-links button:hover{background:var(--pale)}.concept-index-links .badge{margin-right:4px}.concept-index-item>a{display:flex;align-items:center;padding:0 8px;border-left:1px solid var(--line);background:#fff;color:var(--purple);font-size:10px;white-space:nowrap;text-decoration:none}.concept-index-item>a:hover{background:#fff7d7;text-decoration:underline}.knowledge{scroll-margin-top:18px}.pen-mark{background:linear-gradient(transparent 48%,#f5e8a7 48%,#f5e8a7 92%,transparent 92%);color:inherit;padding:0 1px}.pen-mark.must-mark{background:linear-gradient(transparent 43%,#f4d7a1 43%,#f4d7a1 94%,transparent 94%);font-weight:600}.textbook-link{display:inline-block;margin-top:7px;color:var(--purple);font-size:11px;text-decoration:underline;text-underline-offset:3px}.trap u{text-decoration-color:#ce9d8c;text-decoration-thickness:2px;text-underline-offset:3px}@media(max-width:600px){.concept-index>summary{display:block}.concept-index>summary span{display:block;margin-top:3px}.concept-index-links{max-height:260px;overflow:auto}.concept-index-item{display:flex;width:100%}.concept-index-links button{flex:1;text-align:left}.concept-index-item>a{min-width:64px;justify-content:center}}