/* Classroom-first interface. Existing feature styles remain in style.css. */
:root{--paper:#f7f8f5;--surface:#fff;--surface-plain:#fff;--ink:#203c34;--ink-soft:#61756b;--line:#dfe7e0;--primary:#27664f;--primary-deep:#1e543f;--primary-wash:#edf3ed;--accent:#a56a36;--accent-wash:#f2e9da;--radius:14px;--radius-lg:20px;--shadow:0 2px 8px #203c3405;--font-body:"BIZ UDPGothic","Hiragino Sans",sans-serif;--font-head:"Zen Kaku Gothic New","Hiragino Sans",sans-serif}
body{font-size:15px;letter-spacing:.01em;background:var(--paper)}
main{max-width:1180px;padding:40px 32px 80px}h1,h2,h3{font-family:var(--font-head);letter-spacing:.01em}h1{font-size:38px;line-height:1.45;margin:0 0 12px}h2{background:none;padding:0;margin:0 0 16px;width:auto;font-size:24px}h3{font-size:17px}p{line-height:1.85}.muted{font-size:13px}.card{box-shadow:none;border-color:var(--line);margin-bottom:16px;padding:22px}.ui-icon{width:21px;height:21px;flex-shrink:0;vertical-align:middle}.ui-eyebrow{display:block;font-size:11px;font-weight:700;letter-spacing:.14em;color:var(--primary);margin:0 0 12px}.ui-small{font-size:12px;line-height:1.8;color:var(--ink-soft)}
.topbar{padding:18px 32px;background:#fff;min-height:80px;border-bottom:1px solid var(--line)}.brand{gap:10px;font-size:19px;letter-spacing:.02em;color:var(--ink);align-items:center;white-space:nowrap}.brand-mark{display:grid;place-items:center;width:36px;height:36px;border-radius:11px;background:var(--primary-deep);color:#fff;font-family:var(--font-head);font-size:20px}.brand small{font-size:10px;letter-spacing:.12em;display:block;color:var(--ink-soft);font-weight:500;line-height:1.4}#topbar-right{gap:14px}#topbar-right button{background:none;color:var(--ink);font-size:12px;min-height:42px}#topbar-right button.home{background:var(--primary-wash);color:var(--primary-deep)}.account-menu{position:relative;font-size:12px}.account-menu summary{padding:10px;cursor:pointer;list-style:none;border:1px solid var(--line);border-radius:9px}.account-menu>div{position:absolute;top:48px;right:0;width:180px;background:#fff;padding:10px;border:1px solid var(--line);border-radius:12px;box-shadow:0 12px 32px #203c3417;z-index:50}.account-menu button{width:100%;text-align:left;white-space:nowrap}.account-menu summary::-webkit-details-marker{display:none}
button{min-height:46px;border-radius:9px;box-shadow:none}button:focus-visible,a:focus-visible,input:focus-visible,summary:focus-visible{outline:3px solid #6d9b83;outline-offset:4px}button.ghost{text-decoration:none}button.big{border-radius:10px}input,select,textarea{accent-color:var(--primary);max-width:100%}.ui-button{display:inline-flex;align-items:center;justify-content:center;gap:10px;min-height:48px;padding:13px 20px;font-weight:700;font-size:13px;border-radius:10px;text-decoration:none;line-height:1.5;border:1px solid transparent;white-space:normal}.ui-primary{background:var(--primary-deep);color:#fff}.ui-primary:hover{background:#153f2e}.ui-secondary{background:#fff;color:var(--ink);border-color:var(--line)}.ui-secondary:hover{border-color:var(--primary);background:var(--primary-wash);color:var(--primary-deep)}.ui-text{background:none;color:var(--primary);font-size:12px;padding:7px 4px;min-height:36px}.ui-text:hover{background:var(--primary-wash);color:var(--primary-deep)}.ui-form-error{color:#a13f35;font-size:12px;line-height:1.75;margin:10px 0}.ui-form-error:empty{display:none}
body[data-screen="role"] main{max-width:1280px;padding-top:68px}.welcome-grid{display:grid;grid-template-columns:1.4fr 1fr;gap:80px;align-items:center}.welcome-copy h1{font-size:clamp(42px,5vw,67px);line-height:1.3;letter-spacing:.015em;margin:22px 0 25px;font-weight:700}.welcome-lead{font-size:16px;line-height:2;color:var(--ink-soft);margin-bottom:30px}.welcome-actions{display:flex;align-items:flex-start;gap:12px;flex-direction:column}.welcome-actions .ui-primary{padding:17px 24px;font-size:14px;min-width:270px}.welcome-proof{display:flex;flex-wrap:wrap;gap:10px 20px;margin-top:30px;font-size:11px;color:var(--ink-soft)}.welcome-proof .ui-icon{width:15px;height:15px;color:var(--primary);margin-right:4px}.welcome-join{padding:40px 34px;background:#eaf1e7;border-radius:22px;border:1px solid #dce6d7}.welcome-join .ui-eyebrow{margin-bottom:15px}.welcome-join h2{font-size:29px;line-height:1.5;margin-bottom:14px}.welcome-join>p{font-size:13px;color:var(--ink-soft);margin-bottom:24px}.join-form label{display:block;font-size:11px;font-weight:700;margin-bottom:10px}.join-code-input{display:block;width:100%;height:65px;text-align:center;font-family:ui-monospace,monospace;font-weight:700;font-size:28px;letter-spacing:.22em;border:1px solid #c7d6c4;border-radius:9px;color:var(--ink);background:#fff;text-transform:uppercase;padding:12px 8px}.join-code-input::placeholder{color:#a6b6ab}.join-form .ui-primary{width:100%;margin-top:14px}.join-form .ui-small{font-size:10px;text-align:center;margin:14px 0 0}.intro-flow{border-top:1px solid var(--line);margin-top:72px;padding-top:34px;display:grid;grid-template-columns:.8fr 1.7fr;gap:35px}.intro-flow h2{font-size:20px}.intro-flow ol{display:grid;grid-template-columns:repeat(3,1fr);gap:25px;list-style:none;padding:0;margin:0}.intro-flow li>span{font-family:var(--font-head);font-size:12px;color:#8aa28f;display:block;margin-bottom:10px}.intro-flow b{font-size:13px}.intro-flow li p{font-size:11px;color:var(--ink-soft);margin-top:6px}.welcome-lessons{margin-top:65px}.section-heading{display:flex;justify-content:space-between;align-items:end;gap:20px;margin-bottom:22px}.section-heading h2{font-size:24px;margin:0}.section-heading .ui-eyebrow{margin-bottom:9px}.welcome-lesson-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:22px}.lesson-sample{display:grid;grid-template-columns:145px 1fr;padding:0;text-align:left;background:#fff;color:var(--ink);overflow:hidden;border:1px solid var(--line);border-radius:14px;min-height:165px}.lesson-sample:hover{background:white;transform:translateY(-2px);border-color:#91b09b}.sample-art{background:#dce9d8;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:11px;padding:18px;color:var(--primary-deep);min-height:170px}.sample-art[data-chapter="3"]{background:#efe7d6;color:#7c613c}.sample-art>span{font-size:12px;letter-spacing:.22em}.sample-art>.ui-icon{height:37px;width:37px}.sample-art small{font-size:10px;opacity:.7}.sample-body{display:flex;flex-direction:column;justify-content:center;gap:13px;padding:24px}.sample-body .ui-eyebrow{margin:0;font-size:9px}.sample-body b{font-size:18px;line-height:1.7}.sample-body>span:last-child{font-size:11px;font-weight:500;color:var(--ink-soft);display:flex;align-items:center;gap:10px}.sample-body>span:last-child .ui-icon{height:16px;width:16px}.curriculum-note{font-size:10px;color:var(--ink-soft);text-align:center;margin-top:42px}
.workspace-title{display:flex;justify-content:space-between;align-items:end;gap:16px;margin-bottom:28px}.workspace-title h1{font-size:30px;margin:0}.workspace-title .ui-eyebrow{margin-bottom:7px}.workspace-title p{margin:7px 0 0;color:var(--ink-soft);font-size:12px}.class-share{display:flex;align-items:center;gap:30px;background:#edf3ed;border:1px solid #dde7dc;border-radius:15px;padding:22px 25px;margin:0 0 28px}.share-label{display:flex;gap:13px;align-items:center}.share-label>.ui-icon{width:25px;height:25px}.share-label b{display:block;font-size:13px}.share-label span{display:block;font-size:10px;color:var(--ink-soft);margin-top:5px}.share-code{margin-left:auto;padding:0 25px;border-left:1px solid #ccdacb}.share-code>span{display:block;font-size:9px;letter-spacing:.05em}.share-code strong{font-family:ui-monospace,monospace;font-size:27px;letter-spacing:.12em;line-height:1.4}.share-actions{display:flex;align-items:center;flex-wrap:wrap;gap:7px;max-width:340px}.share-actions .ui-button{min-height:38px;padding:9px 11px;font-size:10px;gap:7px}.share-actions .ui-icon{width:15px;height:15px}.share-actions .ui-text{font-size:10px}.join-display{width:min(880px,95vw);text-align:center;padding:70px 35px;border:0;border-radius:20px;color:var(--ink);background:#f7f9f4;box-shadow:0 25px 100px #152f2b33}.join-display::backdrop{background:#142c2677;backdrop-filter:blur(4px)}.dialog-close{position:absolute;right:20px;top:15px;background:none;color:var(--ink);font-size:12px}.projection-code{font-family:ui-monospace,monospace;font-weight:700;font-size:clamp(40px,10vw,100px);letter-spacing:.17em;margin:30px 0}.projection-url{font-size:12px;overflow-wrap:anywhere}.teacher-actions{display:flex;gap:12px;align-items:center;flex-wrap:wrap;margin-bottom:25px}.teacher-actions .ui-primary{min-width:240px}.teacher-actions .ui-primary .ui-icon{margin-left:15px}.teacher-actions .ui-text{margin-left:auto}.dashboard-empty{background:#fff;border:1px dashed #bfcfc1;border-radius:16px;text-align:center;padding:48px 28px;margin-top:25px}.dashboard-empty>.ui-icon{width:37px;height:37px;color:#7c9a85;margin-bottom:16px}.dashboard-empty h2{font-size:20px;margin-bottom:10px}.dashboard-empty p{color:var(--ink-soft);font-size:12px;margin:0}.teacher-resources{margin-top:25px}.teacher-resources summary{font-size:13px;font-weight:700;cursor:pointer;margin-bottom:16px}.live-session{border-top:4px solid var(--primary);padding:26px}.live-session h2{font-size:22px;margin-top:14px}.live-session .stat-tiles{grid-template-columns:repeat(4,1fr);gap:10px;margin:24px 0 18px}.live-session .stat-tile{border:0;background:#f4f7f2;padding:18px 10px;border-radius:10px}.live-session .stat-tile b{font-family:var(--font-head);font-size:30px;font-weight:700}.live-session .stat-tile span{font-size:10px}.class-list-card{border:1px solid var(--line)!important;border-radius:14px!important;background:#fff!important;padding:24px!important;box-shadow:none!important}.class-list-card button.big{background:var(--primary-deep)!important}.class-list-card>.row:first-child b{font-size:20px!important}.create-class summary{cursor:pointer;font-weight:700;padding:16px 0}.class-create-form{background:#fff;border:1px solid var(--line);padding:25px;border-radius:15px;margin-bottom:24px}.class-create-form h2{font-size:19px}.class-create-form label{display:block;font-size:12px;margin-bottom:7px}.class-create-form input{width:100%;padding:13px 15px;font:inherit;border:1px solid #c8d7ca;border-radius:9px;margin-bottom:14px}.class-create-form .ui-small{margin:0 0 18px}.class-create-form .ui-button{width:100%}.class-tools{font-size:12px;margin-top:20px}.class-tools summary{cursor:pointer;padding:10px}.class-tools>div{margin-top:12px}
.library-heading{display:flex;justify-content:space-between;align-items:end;gap:30px;margin:20px 0 28px}.library-heading h1{font-size:32px;margin-bottom:8px}.library-heading p:not(.ui-eyebrow){font-size:12px;color:var(--ink-soft);margin:0}.library-search{display:flex;align-items:center;gap:10px;width:300px;background:white;border:1px solid var(--line);border-radius:10px;padding:0 14px;min-height:49px}.library-search .ui-icon{color:#7d9285;width:18px}.library-search input{border:0;background:none;font:inherit;font-size:12px;width:100%;padding:13px 0;outline-offset:0}.chapter-filters{display:flex;flex-wrap:wrap;gap:8px;padding:0 0 20px;border-bottom:1px solid var(--line)}.chapter-filter{background:#fff;color:var(--ink-soft);font-size:11px;min-height:39px;padding:9px 15px;border:1px solid var(--line);border-radius:8px}.chapter-filter[aria-pressed="true"]{background:var(--primary-deep);color:#fff;border-color:var(--primary-deep)}.chapter-filter:hover{background:var(--primary-wash);color:var(--ink)}.library-count{font-size:11px;color:var(--ink-soft);margin:19px 0}.lesson-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}.lesson-card{padding:24px;border:1px solid var(--line);background:#fff;border-radius:14px;display:flex;flex-direction:column;min-width:0}.lesson-card-heading{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-bottom:14px}.chapter-label{font-size:10px;color:var(--primary);padding:3px 9px;background:var(--primary-wash);border-radius:5px}.lesson-card-heading .ui-small{display:flex;align-items:center;gap:5px;font-size:10px}.lesson-card-heading .ui-icon{width:13px;height:13px}.lesson-card h2{font-size:19px;line-height:1.65;margin:0 0 12px;overflow-wrap:anywhere}.lesson-description{font-size:11px;color:var(--ink-soft);line-height:1.9;margin:0 0 20px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}.lesson-meta{display:flex;align-items:center;gap:12px;font-size:10px;margin-top:auto;padding-top:3px;margin-bottom:13px}.lesson-meta .ui-text{margin-left:auto;font-size:10px}.lesson-actions{display:flex;gap:8px;border-top:1px solid #edf0eb;padding-top:17px}.lesson-actions .ui-button{font-size:11px;padding:11px 13px;min-height:43px;gap:7px}.lesson-actions .ui-icon{height:15px;width:15px}.lesson-actions .ui-primary{flex:1}.lesson-questions{margin-top:20px}.library-empty{grid-column:1/-1;text-align:center;padding:50px 20px;border:1px dashed var(--line);border-radius:14px;background:#fff}.library-empty p{font-size:12px;color:var(--ink-soft)}
body[data-screen="student-join"] main,body[data-screen="student-register"] main,body[data-screen="teacher-signin"] main{max-width:610px;padding-top:55px}.join-page,.signin-page{background:#fff;border:1px solid var(--line);border-radius:18px;padding:34px}.join-page h1,.signin-page h1{font-size:30px}.join-page>p,.signin-page>p{font-size:13px;color:var(--ink-soft)}.join-page .join-form{margin:30px 0 20px}.signin-page .ui-button{width:100%;margin-top:20px}.signin-benefits{list-style:none;padding:0;margin:26px 0}.signin-benefits li{display:flex;align-items:center;gap:10px;font-size:13px;margin:15px 0}.signin-benefits .ui-icon{color:var(--primary);width:17px}.registration-fields label{font-size:12px!important;color:var(--ink)}.registration-fields input,.registration-fields select{min-height:49px!important;border:1px solid #c8d7ca!important}.registration-fields input{font-size:16px!important}.registration-optional summary{font-size:12px;cursor:pointer}.registration-optional .card{margin-top:15px;border:0;padding:0}.registration-header{margin-bottom:25px}.registration-header h1{font-size:29px}.registration-header p{font-size:12px;color:var(--ink-soft)}
body[data-screen="student-home"] main{max-width:850px}.student-header{display:flex;justify-content:space-between;align-items:center;gap:20px;margin-bottom:27px}.student-header h1{font-size:29px;margin:5px 0}.student-header .ui-eyebrow{font-size:10px;margin:0}.student-header>span{font-size:12px;color:var(--ink-soft)}.current-lesson{background:#fff;border:1px solid var(--line);border-radius:18px;padding:36px;margin-bottom:26px}.current-lesson .task-type{display:flex;align-items:center;gap:10px;font-size:11px;color:var(--primary);font-weight:700}.current-lesson h2{font-size:27px;line-height:1.6;margin:22px 0 10px}.current-lesson>p{font-size:12px;color:var(--ink-soft);margin:0 0 24px}.current-lesson .ui-button{width:100%;font-size:15px;min-height:54px}.student-waiting{background:#fff;border:1px solid var(--line);border-radius:18px;text-align:center;padding:60px 25px;margin-bottom:25px}.waiting-ring{width:68px;height:68px;border-radius:50%;background:var(--primary-wash);display:grid;place-items:center;margin:0 auto 24px;color:var(--primary)}.waiting-ring .ui-icon{width:30px;height:30px}.student-waiting h2{font-size:22px;margin:0 0 12px}.student-waiting p{font-size:12px;color:var(--ink-soft);margin:0}.student-extras{border-top:1px solid var(--line);margin-top:30px;padding-top:22px}.student-extras>summary{font-size:13px;font-weight:700;cursor:pointer;padding:12px 0}.student-extras .tiles{grid-template-columns:repeat(2,minmax(0,1fr))}.student-extras .tile .ti{font-size:22px}.student-extras .tile .tt{font-size:14px}.student-extras .tile .td{font-size:11px}.student-secondary>.card{margin-top:18px}.student-help{display:flex;justify-content:space-between;align-items:center;font-size:11px;padding:10px 0;color:var(--ink-soft)}
body[data-screen="watch"] main{max-width:1000px}.watch-intro{display:flex;gap:12px;align-items:center;padding:15px 19px;background:var(--primary-wash);border-radius:10px;font-size:12px;line-height:1.8;margin:18px 0 20px}.watch-intro .ui-icon{width:23px;height:23px;color:var(--primary)}.watch-steps{display:flex;gap:20px;align-items:center;font-size:10px;color:var(--ink-soft);margin:8px 0 18px}.watch-steps span{display:flex;align-items:center;gap:6px}.watch-steps .active{color:var(--primary);font-weight:700}.watch-steps b{display:grid;place-items:center;width:22px;height:22px;border-radius:50%;background:#e4ece3;font-size:10px}.watch-stage{border-radius:14px;overflow:hidden;background:#14231e}.watch-video{border-radius:14px}.watch-q{background:#fff;border:1px solid var(--line);border-left:4px solid var(--primary);border-radius:13px;padding:24px;margin:20px 0}.watch-progress{height:5px;background:#dfe7df;border-radius:10px;margin-top:15px}.watch-q button{font-size:14px}.watch-q textarea{font-size:16px}.watch-result-heading{padding:25px 0}.pill.pitch{background:var(--primary-wash);color:var(--primary-deep)}.preview-notice{display:flex;align-items:center;justify-content:space-between;gap:16px;background:#f1eadc;padding:12px 16px;border-radius:9px;font-size:11px;margin:0 0 20px}.preview-notice button{font-size:11px;min-height:30px;padding:4px 8px;background:none;color:var(--ink)}
@media(min-width:1100px){body[data-screen="teacher-dashboard"] main{max-width:1180px}.welcome-page{padding-bottom:10px}}
@media(max-width:900px){.welcome-grid{gap:35px;grid-template-columns:1.15fr 1fr}.welcome-copy h1{font-size:46px}.welcome-join{padding:30px 24px}.class-share{flex-wrap:wrap;gap:20px}.share-actions{max-width:none}.share-code{margin-left:auto;border:0;padding:0}.intro-flow{grid-template-columns:1fr;gap:20px}.intro-flow ol{gap:20px}.lesson-actions{flex-wrap:wrap}.lesson-actions .ui-button{flex:1}.lesson-sample{grid-template-columns:105px 1fr}.sample-body{padding:20px}.sample-body b{font-size:16px}.sample-art{min-height:180px}}
@media(max-width:680px){main{padding:28px 18px 65px}.topbar{padding:12px 18px;min-height:68px;gap:8px}.brand{font-size:16px;gap:8px}.brand-mark{width:31px;height:31px;font-size:17px}.brand small{font-size:8px}#topbar-right{gap:5px}#topbar-right button{font-size:11px;padding:7px 10px;min-height:37px}#topbar-right span.who{display:none}.account-menu summary{font-size:10px;padding:8px}.welcome-grid{grid-template-columns:1fr;gap:32px}body[data-screen="role"] main{padding-top:35px}.welcome-copy h1{font-size:43px;margin:18px 0}.welcome-lead{font-size:13px;margin:18px 0 22px}.welcome-actions{gap:10px}.welcome-actions .ui-primary{width:100%;min-width:0}.welcome-proof{gap:9px 12px;margin-top:24px;font-size:10px}.welcome-proof .ui-icon{height:13px;width:13px}.welcome-join{padding:27px 25px}.welcome-join h2{font-size:25px}.welcome-join h2 br{display:none}.intro-flow{margin-top:38px;padding-top:26px}.intro-flow ol{grid-template-columns:1fr;gap:20px}.intro-flow li{display:flex;gap:15px}.intro-flow li>span{margin:0;font-size:13px}.intro-flow li p{margin:5px 0 0}.welcome-lessons{margin-top:38px}.section-heading{align-items:start;flex-direction:column;gap:9px}.section-heading h2{font-size:23px}.section-heading>p{margin:0}.welcome-lesson-grid{grid-template-columns:1fr;gap:15px}.lesson-sample{min-height:145px;grid-template-columns:100px 1fr}.sample-art{min-height:145px}.sample-body{padding:19px}.curriculum-note{text-align:left}.workspace-title h1{font-size:25px}.workspace-title{align-items:start;margin-bottom:20px}.class-share{padding:19px;gap:18px}.share-label{flex:1;min-width:165px}.share-label b{font-size:12px}.share-label span{font-size:9px}.share-code strong{font-size:23px}.share-actions{width:100%;border-top:1px solid #d7e2d3;padding-top:14px}.share-actions .ui-button{flex:1}.share-actions .ui-text{flex:0 0 100%;justify-content:center}.teacher-actions{display:grid;grid-template-columns:1fr 1fr;gap:9px}.teacher-actions .ui-primary{grid-column:1/-1;min-width:0}.teacher-actions .ui-text{margin:0;grid-column:1/-1}.teacher-actions .ui-button{font-size:12px;padding:12px 9px}.live-session{padding:20px}.live-session h2{font-size:19px}.live-session .stat-tiles{gap:5px}.live-session .stat-tile{padding:13px 6px}.live-session .stat-tile b{font-size:25px}.live-session .stat-tile span{font-size:9px}.library-heading{flex-direction:column;align-items:stretch;gap:22px;margin-top:20px}.library-heading h1{font-size:29px}.library-search{width:100%}.chapter-filters{flex-wrap:nowrap;overflow-x:auto;padding-bottom:14px;gap:7px}.chapter-filter{white-space:nowrap;min-height:39px;padding:9px 12px;font-size:10px}.lesson-grid{grid-template-columns:1fr}.lesson-card{padding:22px}.lesson-card h2{font-size:19px}.lesson-actions{flex-wrap:nowrap}.lesson-actions .ui-button{font-size:10px;padding:11px 10px}.lesson-meta{gap:10px}.lesson-meta .ui-text{font-size:10px}.join-page,.signin-page{padding:28px 23px}body[data-screen="student-join"] main,body[data-screen="student-register"] main,body[data-screen="teacher-signin"] main{padding-top:30px}.join-page h1,.signin-page h1{font-size:27px}.student-header h1{font-size:25px}.student-header>span{font-size:10px}.current-lesson{padding:26px 23px}.current-lesson h2{font-size:23px}.current-lesson>p{font-size:11px}.student-waiting{padding:45px 22px}.student-waiting h2{font-size:20px}.student-extras .tiles{grid-template-columns:1fr}.watch-steps{gap:12px;font-size:9px}.watch-intro{font-size:11px;padding:13px}.watch-q{padding:19px}body[data-screen="watch"] h2{font-size:23px}.join-display{padding:65px 20px}.join-display h2{font-size:20px}.projection-code{font-size:40px;letter-spacing:.12em}.preview-notice{align-items:start}}
@media(prefers-reduced-motion:reduce){*,*::before,*::after{animation:none!important;transition:none!important;scroll-behavior:auto!important}}

.lesson-more{border-top:1px solid var(--line);padding-top:10px;margin-top:16px;font-size:11px}.lesson-more summary{cursor:pointer;color:var(--ink-soft);padding:5px 0}.lesson-extra-actions{display:flex;flex-wrap:wrap;gap:9px;padding-top:12px;align-items:center}.lesson-extra-actions button,.lesson-extra-actions select{font-size:11px;min-height:38px}.lesson-extra-actions select{width:100%;padding:7px}

/* Keep the dormant lesson timer out of the classroom header. */
#lesson-hud[hidden]{display:none}#lesson-hud{background:var(--primary-deep)}.brand .brand-mark{color:#fff;font-size:20px;font-weight:700}.library-class{margin:0 0 4px}.library-class+button{padding-left:0}.student-secondary>.student-secondary-item{margin-top:18px}

.submission-success{padding:32px 22px}.success-symbol{display:grid;place-items:center;width:52px;height:52px;border-radius:50%;margin:0 auto 15px;background:var(--primary-wash);color:var(--primary)}.success-symbol .ui-icon{height:28px;width:28px}.submission-success h3{font-size:23px;margin:0 0 8px}.submission-success>.ui-small{margin:0 0 22px}

@media(max-width:680px){.welcome-join{order:-1}.welcome-join h2{font-size:26px}.class-share .share-code{margin-left:0}}

.account-guide{display:block;padding:10px;color:var(--primary);font-size:12px;text-decoration:none}
@media(max-width:680px){.welcome-join h2 br{display:block}.welcome-copy h1{font-size:clamp(31px,8.5vw,43px)}}

.registration-fields{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}.registration-fields label{display:flex;flex-direction:column;gap:6px;font-size:13px}.registration-fields label:last-child{grid-column:1/-1}.registration-fields select,.registration-fields input{width:100%;min-width:0;font:inherit;font-size:16px;border:1px solid var(--line);border-radius:8px;padding:10px;background:white;color:var(--ink)}.registration-actions .ui-button{width:100%}