.read-aloud{align-items:center;gap:var(--space-2);margin:var(--space-2) 0 var(--space-3);flex-wrap:wrap;display:flex}.read-aloud .ui-button{min-height:40px;padding:0 var(--space-3)}.read-aloud-rate{margin:0}.read-aloud-rate select{width:auto;min-height:40px;padding:0 var(--space-2);font-weight:700}.read-aloud-paragraph[data-reading],.lesson-reading[data-reading],h2[data-reading],.reading-takeaway[data-reading]{background:var(--warn-soft);-webkit-box-decoration-break:clone;box-decoration-break:clone;border-radius:4px}@media (prefers-reduced-motion:no-preference){.read-aloud-paragraph,.lesson-part .lesson-reading,.lesson-part h2{transition:background-color .2s}}@media (forced-colors:active){.read-aloud-paragraph[data-reading],.lesson-reading[data-reading],h2[data-reading]{color:marktext;background:mark}}
.draft-status{align-items:center;gap:var(--space-1);min-height:20px;margin-top:var(--space-1);color:var(--muted);font-size:13px;display:flex}.draft-status:empty{min-height:0;margin:0}.action-row .draft-status{margin:0}.search-open kbd,.shortcuts-list kbd{border:1px solid var(--line-strong);background:var(--bg);min-width:24px;color:var(--muted);font:600 12px/1.5 var(--font-code);text-align:center;border-radius:6px;padding:1px 6px;display:inline-block}.shortcuts-open{justify-content:flex-start;min-height:44px;padding:0;font-size:14px;font-weight:600}.shortcuts-list{gap:var(--space-3);margin:var(--space-4) 0 0;display:grid}.shortcuts-list>div{justify-content:space-between;align-items:center;gap:var(--space-4);display:flex}.shortcuts-list dt{gap:var(--space-1);display:inline-flex}.shortcuts-list dd{text-align:right;margin:0}@media (max-width:700px){.shortcuts-open{display:none}}.search-open:not(.is-compact){width:100%;min-height:44px;padding:var(--space-2) var(--space-3);border:1px solid var(--line);border-radius:var(--radius-sm);background:var(--canvas);color:var(--muted);justify-content:flex-start;font-size:15px}.search-open:not(.is-compact) kbd{margin-left:auto}.search-open.is-compact{min-width:44px;padding:var(--space-2) var(--space-3)}.app-top .search-open{margin-left:auto}.app-top .search-open+.notice-bell{margin-left:0}@media (max-width:900px){.app-side .search-open{display:none}}@media (max-width:380px){.app-top:has(.search-open){gap:var(--space-2)}.app-top .search-open.is-compact,.app-top .search-open+.notice-bell.is-compact{padding-inline:var(--space-2)}}dialog:has(.search-panel){width:min(560px,100% - 32px);max-height:calc(100dvh - 32px);margin-top:max(16px,8dvh)}.search-panel{margin-top:var(--space-4)}.search-field{align-items:center;display:flex;position:relative}.search-field svg{left:var(--space-3);color:var(--muted);pointer-events:none;position:absolute}.search-field input{width:100%;padding-left:40px}.search-message{justify-items:start;gap:var(--space-3);margin:var(--space-4) 0 0;color:var(--muted);display:grid}.search-message p{margin:0}.search-results{max-height:min(52dvh,440px);margin:var(--space-3) 0 0;gap:2px;padding:0;list-style:none;display:grid;overflow-y:auto}.search-results li{padding:var(--space-2) var(--space-3);border-radius:var(--radius-sm);cursor:pointer;gap:2px;display:grid}.search-results li[aria-selected=true]{background:var(--blue-soft);color:var(--blue-ink)}.search-result-title{overflow-wrap:anywhere;font-weight:600}.search-result-meta{color:var(--muted);overflow-wrap:anywhere;font-size:13px}@media (forced-colors:active){.search-results li[aria-selected=true]{outline:2px solid highlight}}
.mail-lab{--mail-ink:#263448;--mail-muted:#536277;--mail-line:#dfe5ed;--mail-purple:#68409a;color:var(--mail-ink);margin:22px 0 10px;font-size:14px}.mail-lab button{font:inherit;cursor:pointer}.mail-lab button:focus-visible{outline-offset:4px;outline:3px solid #8255b5}.mail-lab-intro{color:var(--muted);align-items:center;gap:9px;margin-bottom:15px;display:flex}.mail-viewers{flex-wrap:wrap;gap:10px;margin-bottom:18px;display:flex}.mail-viewers button{border:1px solid var(--mail-line);min-width:100px;color:var(--mail-muted);text-align:left;background:#fff;border-radius:12px;flex:1;align-items:center;gap:10px;padding:12px 14px;display:flex}.mail-viewers button[aria-pressed=true]{border-color:var(--mail-purple);color:#52317c;box-shadow:inset 0 0 0 1px var(--mail-purple);background:#f4eefb}.mail-viewers strong,.mail-viewers small{display:block}.mail-viewers small{margin-top:3px;font-size:11px}.mail-viewer-avatar{color:#4c5971;background:#edf0f5;border-radius:50%;flex:0 0 34px;place-items:center;width:34px;min-width:34px;height:34px;font-size:16px;font-weight:700;display:grid}.mail-viewers button[aria-pressed=true] .mail-viewer-avatar{background:var(--mail-purple);color:#fff}.mail-window{background:#fff;border:1px solid #cfd8e5;border-radius:14px;overflow:hidden;box-shadow:0 8px 28px #172d4c08}.mail-window-bar{border-bottom:1px solid var(--mail-line);background:#eff3f8;justify-content:space-between;align-items:center;gap:8px;padding:13px 20px;font-size:12px;display:flex}.mail-window-bar>span:first-child{align-items:center;gap:7px;display:flex}.mail-window-owner{color:var(--mail-muted)}.mail-demo-label{color:var(--mail-muted);font-size:11px}.mail-envelope{padding:22px 24px 16px;animation:.16s ease-out mail-view-in}.mail-envelope h3{color:var(--mail-ink);margin:0 0 20px;font-size:21px;line-height:1.3}.mail-fields{gap:12px;margin:0;display:grid}.mail-fields>div{grid-template-columns:46px minmax(0,1fr);align-items:start;gap:8px;display:grid}.mail-fields dt{color:var(--mail-muted);align-items:center;gap:4px;padding-top:7px;font-size:12px;display:flex}.mail-fields dd{flex-wrap:wrap;gap:8px 12px;margin:0;display:flex}.mail-person{align-items:center;gap:7px;min-width:0;display:inline-flex}.mail-person-initial{color:#52627b;background:#edf1f6;border-radius:50%;flex:0 0 27px;place-items:center;width:27px;height:27px;font-size:12px;display:grid}.mail-person strong{font-size:12px;font-weight:600;display:block}.mail-address{color:var(--mail-muted);overflow-wrap:anywhere;font-size:11px;display:block}.mail-bcc{border-top:1px dashed var(--mail-line);padding-top:12px}.mail-bcc .mail-person-initial{color:var(--mail-purple);background:#eee6f8}.mail-fields>div[data-exposed=true]{background:#fff5df;border-radius:8px;margin:-5px -8px;padding:5px 8px}.mail-message{border-top:1px solid var(--mail-line);margin-top:19px;padding-top:18px;line-height:1.65}.mail-message p{white-space:pre-line;margin:0 0 18px;font-size:14px}.mail-message>span{color:var(--mail-muted);font-size:12px}.mail-delivered{color:var(--mail-muted);overflow-wrap:anywhere;align-items:center;gap:6px;margin:18px 0 0;font-size:11px;display:flex}.mail-insight{color:var(--muted);align-items:flex-start;gap:10px;min-height:48px;margin:16px 0 22px;display:flex}.mail-insight svg{color:var(--accent,#68409a);flex-shrink:0;margin-top:2px}.mail-insight p{margin:0;font-size:14px;line-height:1.6}.mail-experiment{border:1px solid var(--mail-line);background:#fff;border-radius:12px;padding:18px 20px}.mail-experiment-heading{align-items:flex-start;gap:11px;display:flex}.mail-experiment-symbol{color:var(--mail-purple);font-size:25px;line-height:1}.mail-experiment h4{margin:0 0 5px;font-size:15px}.mail-experiment p{color:var(--mail-muted);margin:0;font-size:13px}.mail-move{color:#52317c;background:#faf7fe;border:1px solid #d8c9eb;border-radius:9px;flex-wrap:wrap;justify-content:flex-start;align-items:center;gap:9px;width:100%;margin-top:15px;padding:12px;display:flex}.mail-field-label{background:#fff;border:1px solid #d8c9eb;border-radius:5px;padding:3px 8px;font-size:12px}.mail-move-label{margin-left:auto;font-size:12px;font-weight:600}.mail-reset{color:var(--mail-muted);background:0 0;border:0;align-items:center;gap:6px;margin-top:12px;padding:4px 0;display:flex;font-size:12px!important}.mail-takeaway{color:var(--muted);align-items:center;gap:8px;margin:15px 0 0;font-size:12px;display:flex}@keyframes mail-view-in{0%{opacity:.55;transform:translateY(3px)}to{opacity:1;transform:translateY(0)}}@media (prefers-reduced-motion:reduce){.mail-envelope{animation:none}}@media (max-width:500px){.mail-viewers{gap:6px}.mail-viewers button{text-align:center;flex-direction:column;gap:6px;min-width:80px;padding:10px 5px}.mail-viewers small{font-size:10px}.mail-window-bar{padding:11px 12px}.mail-window-owner{display:none}.mail-envelope{padding:19px 14px 14px}.mail-envelope h3{font-size:19px}.mail-fields>div{grid-template-columns:36px minmax(0,1fr)}.mail-person{align-items:flex-start}.mail-person>span:last-child{min-width:0}.mail-address{font-size:12px}.mail-person strong{font-size:13px}.mail-experiment{padding:16px 14px}.mail-move{gap:7px}.mail-move-label{text-align:left;width:100%;margin-top:3px}}
.visual-versions{grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:1rem;margin-top:1rem;display:grid}.visual-version{background:#fff;border:1px solid #d9d1e3;border-radius:14px;min-width:0;overflow:hidden}.visual-version h3{background:#ede8f3;align-items:center;gap:.6rem;margin:0;padding:1rem;font-size:1rem;display:flex}.visual-version-after h3{color:#214e38;background:#e2f1e9}.lesson-exploration .visual-version p{white-space:pre-line;border:2px solid #0000;border-radius:8px;margin:.5rem;padding:.7rem}.visual-version p[data-focus=true]{background:#f5f0fc;border-color:#7250a4}.visual-segment-label{color:#62546f;margin-bottom:.3rem;font-size:.75rem;font-weight:700;display:block}.visual-version em{color:#6d6175}.visual-version-switch{gap:.5rem;display:none}.lesson-exploration .visual-instruction{margin-bottom:0;font-weight:650}.visual-explanation{background:#efe8f8;border-left:3px solid #6c4798;border-radius:0 8px 8px 0;margin-top:1rem;padding:.8rem 1rem}.lesson-exploration .visual-explanation p{margin-bottom:0}.visual-step-selector{grid-template-columns:repeat(3,minmax(0,1fr));gap:.5rem;margin:1rem 0;display:grid}.lesson-exploration .visual-step-selector button{flex-direction:column;align-items:flex-start;padding:.65rem;font-size:.85rem}.visual-step-selector button>span:first-child{border:1px solid;border-radius:50%;place-items:center;width:1.6rem;height:1.6rem;font-weight:700;display:grid}.lesson-exploration .visual-step-selector [aria-current=step]{color:#fff;background:#5b3591;border-color:#5b3591}.visual-sheet{background:#fff;border:1px solid #c5d7ce;border-radius:12px;margin:1rem 0;overflow:hidden;box-shadow:0 4px #e2e9e5}.lesson-exploration .visual-sheet-title{color:#fff;background:#245b46;align-items:center;gap:.5rem;margin:0;padding:1rem;font-weight:650;display:flex}.visual-sheet-title svg{flex-shrink:0}.visual-sheet table{border-collapse:collapse;table-layout:fixed;width:100%;font-size:.9rem}.visual-sheet caption{text-align:left;color:#5e6b64;padding:.7rem;font-size:.75rem}.visual-sheet th,.visual-sheet td{text-align:left;vertical-align:top;overflow-wrap:anywhere;border:1px solid #dce4df;padding:.75rem .6rem}.visual-sheet th{background:#eef4f0}.visual-sheet [data-focus=true]{color:#553a08;background:#fff1ce}.visual-sheet th small{text-decoration:underline;display:block}.lesson-exploration .visual-sheet-note{color:#455c50;margin:0;padding:.75rem;font-size:.85rem}.visual-step-controls{justify-content:space-between;align-items:center;gap:.4rem;margin-top:1rem;display:flex}.lesson-exploration .visual-step-controls button:disabled{opacity:.5;cursor:default;background:#fff}@media (max-width:640px){.visual-version-switch{display:flex}.visual-versions{grid-template-columns:minmax(0,1fr)}.visual-version-switch button{flex:1}.visual-step-selector{grid-template-columns:repeat(2,minmax(0,1fr))}.lesson-exploration .visual-step-selector button{flex-direction:row;justify-content:flex-start;align-items:center}.visual-step-selector button>span:first-child{flex-shrink:0}.visual-versions[data-version=before] .visual-version-after,.visual-versions[data-version=after] .visual-version-before{display:none}.visual-sheet th,.visual-sheet td{padding:.6rem .4rem}.visual-step-controls button{font-size:.85rem}}
.lesson-exploration{--explore-purple:#5b3591;color:#292333;overflow-wrap:anywhere;background:#f9f7fc;border:1px solid #d9cde8;border-radius:18px;margin-block:1.5rem;padding:clamp(1rem,3vw,1.5rem);line-height:1.6}.lesson-exploration p{margin-block:.75rem}.exploration-heading{color:var(--explore-purple);flex-wrap:wrap;justify-content:space-between;align-items:center;gap:.75rem;font-weight:700;display:flex}.lesson-exploration button,.lesson-exploration select{color:#332343;min-height:44px;font:inherit;cursor:pointer;background:#fff;border:1px solid #b9adca;border-radius:9px;padding:.55rem .75rem}.lesson-exploration button{text-align:left;justify-content:center;align-items:center;gap:.5rem;display:inline-flex}.lesson-exploration button:hover{background:#eee7f7}.lesson-exploration button:focus-visible,.lesson-exploration select:focus-visible{outline-offset:3px;outline:3px solid #6635aa}.lesson-exploration button[aria-pressed=true]{color:#fff;background:#5b3591;border-color:#5b3591}.exploration-tabs,.exploration-options{flex-wrap:wrap;gap:.5rem;margin-block:.8rem;display:flex}.exploration-document{background:#fff;border:1px solid #ded8e6;border-radius:12px;min-width:0;margin-block:1rem;padding:1rem;box-shadow:0 3px #ebe5f0}.lesson-exploration .exploration-caption{color:#63546f;border-bottom:1px solid #e9e4ef;align-items:center;gap:.4rem;padding-bottom:.65rem;font-size:.82rem;font-weight:700;display:flex}.lesson-exploration .exploration-link{color:#4d2784;font-weight:650;text-decoration:underline}.lesson-exploration .exploration-hint{color:#65566f;font-size:.85rem}.exploration-destination code{white-space:normal;overflow-wrap:anywhere;word-break:break-word;background:#eee8f5;border-radius:8px;padding:1rem;font-size:.96rem;display:block}.exploration-destination code strong{text-underline-offset:4px;text-decoration:underline;text-decoration-thickness:2px}.lesson-exploration fieldset{border:0;min-width:0;margin:1rem 0 0;padding:0}.lesson-exploration legend{font-weight:650}.exploration-feedback{color:#583b12;background:#fff3dc;border-left:4px solid #a15e08;border-radius:6px;margin-top:1rem;padding:1rem}.exploration-feedback[data-correct=true]{color:#214d37;background:#e8f4ec;border-color:#28704e}.exploration-feedback p:last-child{margin-bottom:0}.exploration-sharing,.exploration-comparison{grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:1rem;display:grid}.exploration-controls{align-content:start;gap:.5rem;padding-block:1rem;display:grid}.exploration-controls label{margin-top:.5rem;font-weight:650}.exploration-controls select{text-overflow:ellipsis;width:100%;max-width:100%}.exploration-folder{align-items:center;gap:.5rem;font-weight:700;display:flex}.exploration-files{margin:0;padding:0;list-style:none}.exploration-files li{color:#675c70;border-top:1px solid #e6dfed;align-items:center;gap:.75rem;padding:.8rem .5rem;display:flex}.exploration-files svg{flex-shrink:0}.exploration-files li[data-access=true]{color:#352747;background:#f5f0fb}.exploration-files small{font-size:.82rem;display:block}.lesson-exploration .exploration-check{color:#fff;background:#5b3591}.lesson-exploration .exploration-check:hover{color:#fff;background:#482773}.exploration-passage{border-left:3px solid #0000;padding:.5rem}.exploration-passage[data-evidence=true]{background:#eee5fc;border-color:#5b3591}.exploration-response blockquote{margin:1rem 0;font-size:1.15rem;font-weight:550}.exploration-sr{clip-path:inset(50%);white-space:nowrap;width:1px;height:1px;position:absolute;overflow:hidden}@media (max-width:640px){.exploration-sharing,.exploration-comparison{grid-template-columns:minmax(0,1fr);gap:0}.exploration-options{flex-direction:column}.exploration-heading{align-items:flex-start}}
.tutor-nav ul{flex-wrap:wrap;gap:8px;margin:0;padding:0;list-style:none;display:flex}.tutor-nav button{border:1px solid var(--line);border-radius:var(--radius-pill);background:var(--bg);min-height:44px;color:var(--ink);align-items:center;gap:8px;padding:8px 16px;font-weight:700;display:inline-flex}.tutor-nav button[aria-current=page]{border-color:var(--tutor);background:var(--tutor-soft);color:var(--tutor)}.tutor-nav button:focus-visible,.tutor-filter button:focus-visible,.tutor-crumbs button:focus-visible{outline:3px solid var(--focus);outline-offset:2px}.tutor-trio{grid-template-columns:repeat(3,minmax(0,1fr));gap:16px;min-width:0;display:grid}.tutor-trio .enrollment-card{align-content:start;gap:12px;min-width:0;display:grid}.tutor-trio .enrollment-card h2{margin:0}.tutor-trio .comm-row{margin-top:0}.tutor-why{color:var(--warn);flex:1 0 100%;font-size:14px}.tutor-crumbs{flex-wrap:wrap;align-items:center;gap:8px;font-size:15px;display:flex}.tutor-crumbs button{color:var(--blue-ink);background:0 0;border:0;padding:0;font-weight:700;text-decoration:underline}.tutor-kicker{color:var(--muted);letter-spacing:.07em;text-transform:uppercase;font-size:12px;font-weight:700}.tutor-head{flex-wrap:wrap;justify-content:space-between;align-items:flex-start;gap:12px 16px;min-width:0;display:flex}.tutor-head>div{gap:4px;min-width:0;display:grid}.tutor-cols{grid-template-columns:minmax(0,1fr) minmax(0,340px);align-items:start;gap:16px;min-width:0;display:grid}.tutor-stack{gap:16px;min-width:0;display:grid}.tutor-stack>.enrollment-card{gap:12px;min-width:0;display:grid}.tutor-stack>.enrollment-card h2,.tutor-stack>.enrollment-card h3,.tutor-stack>.enrollment-card p{margin:0}.tutor-evidence{border-radius:var(--radius-sm);background:var(--canvas);white-space:pre-wrap;overflow-wrap:anywhere;padding:16px;line-height:1.6}.tutor-checks,.tutor-files,.tutor-events{gap:8px;margin:0;padding:0;list-style:none;display:grid}.tutor-checks li{align-items:flex-start;gap:12px;display:flex}.tutor-checks svg{flex:none;margin-top:2px}.tutor-checks .ok{color:var(--green)}.tutor-checks .no{color:var(--warn)}.tutor-files a{overflow-wrap:anywhere;font-weight:700}.tutor-events li,.tutor-lessons li{border-top:1px solid var(--line);overflow-wrap:anywhere;flex-wrap:wrap;justify-content:space-between;gap:4px 12px;padding:8px 0;display:flex}.tutor-events li:first-child,.tutor-lessons li:first-child{border-top:0}.tutor-events time,.tutor-lessons span{color:var(--muted);font-size:14px}.tutor-lessons{margin:0;padding:0;list-style:none}.tutor-filter{border-bottom:1px solid var(--line);scrollbar-width:none;align-items:center;gap:4px 20px;margin:4px 0 20px;display:flex;overflow-x:auto}.tutor-filter button{min-height:44px;color:var(--muted);white-space:nowrap;background:0 0;border:0;border-bottom:2px solid #0000;border-radius:0;flex:none;align-items:center;gap:8px;margin-bottom:-1px;padding:10px 4px;font-weight:600;display:inline-flex}.tutor-filter button:hover:not(:disabled){color:var(--ink);background:0 0}.tutor-filter button[aria-pressed=true]{border-bottom-color:var(--tutor);color:var(--ink);font-weight:700}.tutor-filter .ui-chip{padding:0 8px;font-size:12px}.tutor-link{color:var(--blue-ink);text-align:left;overflow-wrap:anywhere;background:0 0;border:0;padding:0;font-weight:700;text-decoration:underline}.tutor-reasons{color:var(--warn);gap:2px;margin:0;padding:0;font-size:14px;list-style:none;display:grid}.tutor-notes{gap:12px;margin:0;padding:0;list-style:none;display:grid}.tutor-notes li{border:1px solid var(--line);border-left:4px solid var(--tutor);border-radius:var(--radius-sm);overflow-wrap:anywhere;white-space:pre-wrap;gap:4px;padding:12px;display:grid}.tutor-notes .meta{color:var(--muted);white-space:normal;font-size:13px}.tutor-form{gap:8px;min-width:0;display:grid}.tutor-form .ui-button{justify-self:start}.challenge-review{white-space:pre-wrap;overflow-wrap:anywhere;margin:8px 0 0}@media (max-width:860px){.tutor-trio,.tutor-cols{grid-template-columns:minmax(0,1fr)}}.tutor-trio .comm-head{flex-wrap:nowrap;justify-content:space-between;align-items:flex-start;gap:12px;display:flex}.tutor-trio .comm-title{flex-wrap:nowrap;align-items:center;gap:4px;min-width:0;display:flex}.tutor-trio .enrollment-card h2{font-size:18px;line-height:1.3}
.lesson-text-part .lesson-figure{margin:1rem 0 1.25rem}.lesson-text-part .reading-takeaway{color:#342543;background:#f1eaf8;border-left:4px solid #70439b;border-radius:0 12px 12px 0;align-items:flex-start;gap:.8rem;margin:1.25rem 0;padding:1rem;line-height:1.55;display:flex}.reading-takeaway>svg{color:#63358b;flex-shrink:0;margin-top:.1rem}.reading-takeaway .reading-takeaway-label{color:#63358b;letter-spacing:.025em;margin:0 0 .35rem;font-size:.8rem;font-weight:750}.reading-takeaway .reading-takeaway-text{overflow-wrap:anywhere;margin:0;font-size:1rem}
.data-saver-setting{gap:var(--space-2);display:grid}.data-saver-title{align-items:center;gap:var(--space-1);margin:0;font-size:14px;font-weight:600;display:inline-flex}.data-saver-options{border:1px solid var(--line-strong);border-radius:var(--radius-pill);background:var(--soft);flex-wrap:wrap;justify-self:start;max-width:100%;padding:2px;display:inline-flex}.data-saver-options label{min-height:40px;padding:0 var(--space-3);border-radius:var(--radius-pill);color:var(--muted);cursor:pointer;align-items:center;margin:0;font-size:14px;font-weight:600;display:inline-flex;position:relative}.data-saver-options input[type=radio]{opacity:0;cursor:pointer;width:100%;height:100%;min-height:0;margin:0;position:absolute;inset:0}.data-saver-options label:has(input:checked){background:var(--blue);color:var(--on-accent)}.data-saver-options label:has(input:focus-visible){outline:3px solid var(--focus);outline-offset:2px}.direct-video[data-saver]{aspect-ratio:auto 16/9}.direct-video-quality{margin:var(--space-1) 0 0;color:var(--faint);font-size:13px}