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/* Clinical study edition: course-led identity, restrained colour, generous type. */
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/* Shared Apple HIG-informed typography, hierarchy and grouped surfaces. */
:root{--bg:#f2f4f3;--forest:#164d39;--green:#167451;--ink:#18251e;--muted:#59685f;--line:#dce4df}
body,button,input,h1,h2,h3,.welcome h1,.resume-panel h2,.intro h1,.page-title h1,.quiz h1{font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif}
h1,.intro h1,.page-title h1{font-weight:700;letter-spacing:-1px;font-size:34px;line-height:1.2}.welcome h1{font-size:34px;font-weight:700;letter-spacing:-1px}.resume-panel h2{font-size:28px;font-weight:650;line-height:1.25;letter-spacing:-.6px}h2{font-weight:650}.topbar{background:var(--bg)}.sidebar{background:#fbfcfb}.account-button{width:44px;height:44px;border-radius:50%;background:#e4ece7}.context-link svg{border:0;background:#e4ece7;border-radius:50%}.welcome{border:0;box-shadow:none;padding:28px}.course-stats strong{font-variant-numeric:tabular-nums}.tool{background:white;min-height:155px}.tool.blue-tool{background:white}.tool>span{line-height:1.5}.topic-card{background:white;padding:18px;border-bottom:1px solid var(--line)}.topic-card:first-child{border-radius:18px 18px 0 0}.topic-card:last-child{border-radius:0 0 18px 18px;border:0}.home-view .topic-grid{gap:0;grid-template-columns:1fr}.segments{border:0;background:#e5eae7;padding:4px;border-radius:12px}.segments a{min-height:44px;display:grid;place-items:center;font-size:15px;border-radius:9px}.segments .selected{background:white;color:var(--forest);box-shadow:0 1px 3px #18251e1c}.search-label input{min-height:48px;background:#e7ece9;border:0;border-radius:13px;font-size:17px}.note-list{border:0;border-radius:20px}.note-card{padding:24px}.note-card h2{font-size:20px;line-height:1.35}.note-card p{font-size:15px;line-height:1.6}.note-meta{font-size:13px}.note-body{font-size:18px;line-height:1.8}.reader{padding:28px;background:white;border-radius:22px;max-width:760px}.reader h1{font-size:32px}.reader .lead{font-size:17px}.reader .note-body p{color:var(--ink)}.paper-card,.course-card{border:0;border-radius:20px}.paper-card h2{font-size:22px;line-height:1.3}.tag{font-size:13px;border-radius:8px}.primary,.secondary{font-size:16px;min-height:50px;border-radius:14px}.secondary{border-color:var(--line)}.practice-banner{background:white;border-radius:20px}.practice-banner p{font-size:16px}.profession{border:0;border-radius:18px}.profession strong{font-size:17px}.profession small{font-size:14px}.stat-row{border:0;border-radius:20px;padding:24px}.stat-row strong{font-size:32px;font-variant-numeric:tabular-nums}.stat-row span{font-size:14px}.history{background:white;border-radius:20px;padding:0 24px}.history article:last-child{border:0}.history article small{font-size:13px}.saved-note{border:0;border-radius:14px;min-height:52px}.quiz{max-width:760px;margin:auto}.quiz h1{font-size:24px;line-height:1.45;font-weight:600;color:var(--ink)}.quiz-top{font-size:15px}.option{font-size:17px;border:1px solid var(--line);padding:20px;background:white;min-height:72px;text-align:left}.option-letter{font-variant-numeric:tabular-nums}.feedback{font-size:17px;line-height:1.65;border:0}.feedback p{color:var(--ink);margin-bottom:0}.result{border:0;border-radius:24px;background:white}.result h1{font-size:72px;font-weight:700;letter-spacing:-3px;font-variant-numeric:tabular-nums}.result h2{font-size:24px}.review-list article{background:white;border-radius:20px;padding:24px;margin-bottom:16px;border:0}.review-list h2{font-size:20px;line-height:1.5}.settings-list{background:white;border:0;border-radius:20px;overflow:hidden}.settings-list small{font-size:14px;line-height:1.5}.empty{background:white;border-radius:20px;padding:28px}.mobile-nav{backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px)}
@media(max-width:760px){body{background:var(--bg)}.topbar{background:var(--bg)!important}.home-view .topbar{background:var(--bg)!important}.welcome{margin:0;border-radius:22px;padding:24px}.welcome h1{font-size:32px}.home-body{width:auto;margin:0;padding:22px 0;background:none;border-radius:0}.home-view main{padding-top:12px}.resume-panel h2{font-size:28px}.tool{min-height:155px}.tool strong{font-size:16px}.tool>span{font-size:14px}.page-title h1,.intro h1{font-size:34px}.page-title p{font-size:16px}.note-list{border-radius:20px}.note-card{padding:22px 18px}.note-card h2{font-size:20px}.note-card p{font-size:15px}.reader{padding:22px 18px;margin:0 -6px}.reader h1{font-size:30px}.note-body{font-size:18px}.stat-row{padding:20px 8px}.stat-row span{font-size:12px}.stat-row strong{font-size:28px}.history{padding:0 18px}.profession{padding:18px}.profession strong{font-size:17px}.topic-card{padding:18px 34px 18px 14px}.mobile-nav .nav-item{min-height:50px;font-size:12px}.mobile-nav .nav-item.active{background:none}.focused .topbar{background:var(--bg)!important}.quiz h1{font-size:23px}.quiz-controls .primary,.quiz-controls .secondary{font-size:15px}.primary,.secondary{font-size:16px}.content-note{font-size:14px}}
@media(prefers-reduced-motion:no-preference){button,a{transition:background-color .12s ease,border-color .12s ease}button:active{transform:translateY(1px)}}

.feedback.incorrect{background:#fcf1ec}.feedback.incorrect>strong{color:#a24838}
/* Image-led edition: design/interface-concept-v2.png */
:root{--bg:#f5f8f7;--forest:#075b46;--green:#006c50;--ink:#10242a;--muted:#65717f;--line:#e4ece8}
body{font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif}.page-title h1{font-size:29px;letter-spacing:-1px}.page-title p{font-size:15px}.home-greeting{background:#075b46;color:white;padding:28px 30px 70px;border-radius:22px 22px 0 0}.home-greeting p{color:#d4eee2;font-size:14px;margin-bottom:9px}.home-greeting h1{font-size:28px;line-height:1.2;letter-spacing:-.7px;margin:0}.welcome{margin-top:-50px;margin-left:14px;margin-right:14px;border:1px solid #e4ece8;padding:18px;border-radius:20px;position:relative}.welcome .course-top{gap:14px;align-items:center}.welcome .profession-symbol{width:66px;height:76px;border-radius:17px}.course-identity{flex:1}.welcome .course-identity h1{font-size:22px;line-height:1.2;letter-spacing:-.5px;margin:0 0 6px}.course-identity p{font-size:12px;line-height:1.5;margin:0}.change-course{min-width:34px;justify-content:center}.change-course svg{width:18px;height:18px}.course-stats{padding-top:16px;margin-top:18px}.course-stats strong{font-size:22px}.course-stats span{font-size:11px}.home-body{padding-top:0}.resume-panel{border-radius:20px;padding:22px;background:#075b46}.resume-panel h2{font-size:27px;line-height:1.2;font-weight:700}.resume-panel>p{font-size:14px}.resume-panel .primary{background:white;color:#075b46;width:100%;min-height:46px}.feature-top{margin-bottom:14px;font-size:12px}.feature-top svg{width:34px;height:34px;padding:7px}.session-progress{height:7px;background:#ffffff45;border-radius:7px;margin-bottom:20px;overflow:hidden}.session-progress span{display:block;height:100%;background:#b5ead1}.tool-grid{gap:12px}.tool{background:#e3f5ed;border-radius:15px;padding:17px;min-height:126px}.tool.blue-tool{background:#e2efff}.tool>svg:first-child{background:none;padding:0;width:28px;height:28px;margin:0 0 4px}.tool strong{font-size:15px}.tool>span{font-size:12px}.section-heading h2{font-size:19px;letter-spacing:-.5px}.topic-grid{gap:10px;grid-template-columns:1fr}.topic-card,.topic-card:first-child,.topic-card:last-child{border:0;border-radius:16px;background:white;display:flex;gap:15px;align-items:center;padding:15px 32px 15px 14px}.topic-card strong{font-size:15px;line-height:1.4}.topic-card small{font-size:12px}.topic-card .profession-symbol{width:52px;height:56px;border-radius:13px}.profession-symbol.drop,.profession-symbol.baby{background:#e2efff;color:#1e66a6}.profession-symbol.brain{background:#ddf4ea;color:#15765a}.note-list{background:none;display:grid;gap:10px;overflow:visible}.note-card{border:0;border-radius:16px;background:white;padding:16px 12px;gap:14px;align-items:center}.note-card>.profession-symbol{width:62px;height:72px;border-radius:14px}.note-card>div{flex:1}.note-card h2{font-size:17px;line-height:1.35;margin:5px 0 6px}.note-card p{display:none}.note-card .note-meta{font-size:12px}.note-card .text-button{font-size:12px;padding:0;min-height:28px}.note-card .bookmark{width:36px;min-width:36px;height:44px;align-self:center}.search-label{font-size:12px;color:var(--muted)}.search-label input{font-size:15px;background:#eaf0ee}.segments{background:#e8edeb}.segments a{font-size:14px}.practice-banner{background:#075b46;color:white;padding:22px;display:block}.practice-banner h2{color:white;font-size:22px;margin:12px 0 8px}.practice-banner p{color:#d4eee2;font-size:14px}.practice-banner .primary{background:white;color:#075b46;width:100%;margin-top:8px}.practice-banner svg{width:32px;height:32px;color:#d4eee2}.stat-row{background:none;padding:0;gap:8px;border-radius:0}.stat-row>div{background:white;border:0;border-radius:14px;padding:18px 10px;text-align:center}.stat-row strong{font-size:27px}.stat-row span{font-size:11px;line-height:1.5}.activity-panel{padding:20px;background:white;border-radius:17px;margin:18px 0 26px}.activity-panel h2{font-size:17px}.activity-panel p{font-size:12px;margin:15px 0 0}.activity-chart{display:flex;gap:12px;height:112px;align-items:flex-end}.activity-chart>div{flex:1;display:flex;flex-direction:column;align-items:center;gap:6px}.activity-chart span{width:12px;background:#88cdb0;border-radius:4px}.activity-chart small{font-size:11px;color:var(--muted)}.reader{background:white;border-radius:16px}.reader h1{font-size:29px}.note-body{font-size:17px;line-height:1.75}.note-body h2{font-size:20px}.option{border-radius:12px;padding:16px;min-height:62px}.feedback{border-radius:15px;background:#e3f5ed}.quiz h1{font-size:22px;line-height:1.4}.quiz-controls .primary{background:#075b46}.mobile-nav{background:#fff;border-top:1px solid var(--line);backdrop-filter:none}.mobile-nav nav{align-items:center}.mobile-nav .nav-item{font-size:11px;gap:4px;padding:5px 0;min-height:52px}.mobile-nav .nav-item svg{width:23px;height:23px}.mobile-nav .nav-item.active{background:#e1f5e9;border-radius:14px;color:#006c50}.sidebar .nav-item.active{background:#e1f5e9}
@media(min-width:1000px){.home-view main{display:block}.home-greeting{max-width:500px}.welcome{max-width:472px}.home-body{display:grid;grid-template-columns:1fr 1fr;gap:20px}.home-body .resume-panel{grid-column:1/-1}.home-body .section-heading{grid-column:1/-1}.home-body .tool-grid,.home-body .topic-grid,.home-body .offline-box{grid-column:1/-1}.home-view .welcome{position:relative;top:auto}.note-list{grid-template-columns:1fr 1fr}}
@media(max-width:760px){main{padding-left:20px;padding-right:20px}.home-view main{padding-top:0}.home-view .topbar{background:#075b46!important;color:white;height:56px}.home-view .topbar .context-link{color:white}.home-view .topbar .context-link svg{color:white;background:#ffffff15}.home-view .account-button{background:#eaf6f0}.home-view .home-greeting{margin:0 -20px;padding:10px 24px 70px;border-radius:0}.home-view .welcome{margin:-50px -7px 12px;padding:17px;position:relative}.home-body{margin:0;width:auto;padding:0}.section-heading{margin:23px 0 13px}.topic-card{min-height:86px}.mobile-nav{padding:7px 12px 12px}.mobile-nav nav{gap:10px}.mobile-nav .nav-item{flex:1}.note-card{padding:13px 10px}.page-title{margin-bottom:20px}.page-title h1{font-size:29px}.history{padding:0 16px}.reader{padding:20px 18px}.quiz-top{font-size:13px}}
.session-progress>span{min-width:0!important;max-width:100%}.home-greeting{position:relative}.home-view .topbar .context-link span{display:none}
@media(max-width:760px){.home-view .welcome{margin-bottom:12px}.home-view .resume-panel{padding:19px 21px}.home-view .resume-panel>p{margin-bottom:16px}.home-view .feature-top{margin-bottom:12px}.home-view .resume-panel h2{font-size:26px}.home-view .home-greeting{padding-bottom:65px}.home-view .course-stats{padding-top:12px;margin-top:13px}.home-view .course-stats>div{padding-left:12px;padding-right:12px}.home-view .course-stats>div:first-child{padding-left:0}}
/* Distinct topic artwork and richer forest / emerald palette. */
:root{--forest:#064635;--green:#006044}.home-greeting,.resume-panel,.practice-banner,.home-view .topbar{background:#064635!important}.primary,.quiz-controls .primary{background:#006044}.resume-panel .primary,.practice-banner .primary{background:white;color:#064635}.topic-illustration{display:block;width:56px;height:62px;object-fit:contain;border-radius:14px;flex-shrink:0}.note-card>.topic-illustration{width:62px;height:72px}.course-top>.topic-illustration{width:72px;height:80px}.topic-card>.topic-illustration{width:52px;height:58px}.topic-card>span{flex:1;min-width:0}.topic-card>span strong{display:block}.mobile-nav .nav-item.active{background:#d9efe3;color:#00513b}.tool{background:#dcefe4}.tool.blue-tool{background:#dce8f7}
/* Task-first Home: primary actions are visible before secondary information. */
.home-view main{display:block;max-width:1020px;padding-top:20px}.home-view .topbar{background:var(--bg)!important;border:0;height:56px}.home-view .topbar .context-link{color:var(--muted)}.home-view .topbar .context-link svg{color:var(--forest);background:#e4ece7}.home-view .account-button{background:#e4ece7}.home-start{display:grid;gap:18px}.home-course{display:flex;align-items:center;gap:12px;background:none;border:0;padding:0;text-align:left;min-height:48px;width:100%}.home-course>.topic-illustration,.home-course>.profession-symbol{width:44px;height:48px;border-radius:12px}.home-course>span{flex:1}.home-course small,.home-course strong{display:block}.home-course small{font-size:12px;color:var(--muted)}.home-course strong{font-size:18px;color:var(--ink);font-weight:650}.home-course>svg{width:18px;color:var(--green)}.home-tasks{display:grid;gap:10px}.home-tasks h1{font-size:22px;line-height:1.3;letter-spacing:-.5px;margin:0 0 4px}.home-task{display:flex;align-items:center;gap:14px;min-height:76px;padding:15px 16px;border:1px solid var(--line);background:white;border-radius:15px;text-align:left;color:var(--ink);width:100%}.home-task>svg:first-child{width:25px;height:25px;color:var(--green)}.home-task>span{flex:1;min-width:0}.home-task strong,.home-task small{display:block}.home-task strong{font-size:16px;font-weight:650;line-height:1.35}.home-task small{font-size:13px;line-height:1.45;color:var(--muted);margin-top:3px}.home-task>svg:last-child{width:17px;height:17px;color:var(--muted)}.home-task-primary{background:#064635;border-color:#064635;color:white}.home-task-primary small,.home-task-primary>svg:first-child,.home-task-primary>svg:last-child{color:#d8eee3}.home-task:hover{border-color:#6fa58b}.home-resume{display:flex;align-items:center;gap:12px;padding:14px 16px;min-height:68px;background:#e3f0e8;border:0;border-radius:13px;text-align:left;width:100%}.home-resume>span{flex:1}.home-resume small,.home-resume strong{display:block}.home-resume small{font-size:12px;color:#456a56}.home-resume strong{font-size:14px;line-height:1.4;color:#064635;margin:3px 0}.home-secondary{display:flex;gap:16px;justify-content:space-between}.home-secondary a{display:flex;align-items:center;gap:7px;min-height:44px;font-size:13px;font-weight:600;color:var(--green)}.home-secondary svg{width:19px;height:19px}.home-topics .section-heading{margin-top:22px}.home-topics .topic-grid{gap:8px}.home-topics .topic-card{padding:12px 30px 12px 12px;min-height:72px}.home-topics .topic-illustration{width:44px;height:48px}.home-topics .topic-card strong{font-size:14px}.home-offline{display:flex;align-items:center;justify-content:center;gap:9px;border:0;background:none;width:100%;min-height:48px;color:var(--green);font-size:14px;margin-top:14px}.home-offline svg{width:20px;height:20px}
@media(min-width:1000px){.home-view main{display:grid;grid-template-columns:1.1fr 1fr;align-items:start;gap:32px}.home-topics .section-heading{margin-top:0}.home-view .notice{grid-column:1/-1}}
@media(max-width:760px){.home-view main{padding:8px 20px 32px}.home-view .topbar .context-link span{display:block}.home-view .topbar .context-link{font-size:13px}.home-task{min-height:76px}.home-start{gap:18px}}
/* Claude lead layout: compact continuation, shortcuts, progress, then topics. */
.home-next{padding:18px;background:white;border:1px solid var(--line);border-radius:18px;display:grid;gap:14px}.home-next-title{display:flex;gap:12px;align-items:center}.home-next-title>svg{width:44px;height:44px;padding:10px;background:#e3f0e8;border-radius:12px;color:var(--green)}.home-next-title>div{min-width:0;flex:1}.home-next-title small{font-size:12px;color:var(--green);font-weight:600}.home-next h1{font-size:17px;line-height:1.4;margin:3px 0;font-weight:700;letter-spacing:0}.home-next p{font-size:13px;margin:0}.home-next .primary{min-height:50px;width:100%;background:var(--green);color:white}.home-shortcuts{display:flex;gap:10px}.home-shortcuts a{flex:1;min-width:0;min-height:76px;background:white;border:1px solid var(--line);border-radius:14px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:6px;color:var(--ink);font-size:14px;font-weight:600}.home-shortcuts svg{width:24px;height:24px;color:var(--green)}.home-reading{display:flex;flex-wrap:wrap;align-items:center;padding:15px;background:white;border:1px solid var(--line);border-radius:14px;color:var(--ink);font-size:14px;gap:10px}.home-reading>span{flex:1}.home-reading>svg{width:18px;color:var(--muted)}.home-meter{height:6px;background:#e3f0e8;border-radius:5px;overflow:hidden;width:100%}.home-meter>span{display:block;height:100%;background:var(--green)}.practice-banner{background:white!important;color:var(--ink);padding:18px;border:1px solid var(--line);border-radius:18px}.practice-banner h2{color:var(--ink);font-size:18px}.practice-banner p{color:var(--muted);font-size:14px}.practice-banner svg{color:var(--green);width:24px;height:24px}.practice-banner .primary{background:var(--green);color:white}.home-course strong{font-size:17px}.home-course small{font-size:13px}.home-start{gap:16px}.home-topics .section-heading h2{font-size:18px}.home-view .topbar .context-link span{font-size:12px}