@font-face{font-family:Fraunces Variable;font-style:normal;font-display:swap;font-weight:100 900;src:url(../media/fraunces-vietnamese-wght-normal.0i7lhkw2ij3q1.woff2)format("woff2-variations");unicode-range:U+102-103,U+110-111,U+128-129,U+168-169,U+1A0-1A1,U+1AF-1B0,U+300-301,U+303-304,U+308-309,U+323,U+329,U+1EA0-1EF9,U+20AB}@font-face{font-family:Fraunces Variable;font-style:normal;font-display:swap;font-weight:100 900;src:url(../media/fraunces-latin-ext-wght-normal.0t2awsxbm3c7a.woff2)format("woff2-variations");unicode-range:U+100-2BA,U+2BD-2C5,U+2C7-2CC,U+2CE-2D7,U+2DD-2FF,U+304,U+308,U+329,U+1D00-1DBF,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20C0,U+2113,U+2C60-2C7F,U+A720-A7FF}@font-face{font-family:Fraunces Variable;font-style:normal;font-display:swap;font-weight:100 900;src:url(../media/fraunces-latin-wght-normal.1v4l5w6-86t-v.woff2)format("woff2-variations");unicode-range:U+??,U+131,U+152-153,U+2BB-2BC,U+2C6,U+2DA,U+2DC,U+304,U+308,U+329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}
@font-face{font-family:Fraunces Variable;font-style:italic;font-display:swap;font-weight:100 900;src:url(../media/fraunces-vietnamese-wght-italic.00j_b5ffkonkh.woff2)format("woff2-variations");unicode-range:U+102-103,U+110-111,U+128-129,U+168-169,U+1A0-1A1,U+1AF-1B0,U+300-301,U+303-304,U+308-309,U+323,U+329,U+1EA0-1EF9,U+20AB}@font-face{font-family:Fraunces Variable;font-style:italic;font-display:swap;font-weight:100 900;src:url(../media/fraunces-latin-ext-wght-italic.0398zdsnbtl6o.woff2)format("woff2-variations");unicode-range:U+100-2BA,U+2BD-2C5,U+2C7-2CC,U+2CE-2D7,U+2DD-2FF,U+304,U+308,U+329,U+1D00-1DBF,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20C0,U+2113,U+2C60-2C7F,U+A720-A7FF}@font-face{font-family:Fraunces Variable;font-style:italic;font-display:swap;font-weight:100 900;src:url(../media/fraunces-latin-wght-italic.0by3gh2t3oa9b.woff2)format("woff2-variations");unicode-range:U+??,U+131,U+152-153,U+2BB-2BC,U+2C6,U+2DA,U+2DC,U+304,U+308,U+329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}
@font-face{font-family:Manrope Variable;font-style:normal;font-display:swap;font-weight:200 800;src:url(../media/manrope-cyrillic-ext-wght-normal.1dtltwig2y3wh.woff2)format("woff2-variations");unicode-range:U+460-52F,U+1C80-1C8A,U+20B4,U+2DE0-2DFF,U+A640-A69F,U+FE2E-FE2F}@font-face{font-family:Manrope Variable;font-style:normal;font-display:swap;font-weight:200 800;src:url(../media/manrope-cyrillic-wght-normal.1hmx3sz6swr8m.woff2)format("woff2-variations");unicode-range:U+301,U+400-45F,U+490-491,U+4B0-4B1,U+2116}@font-face{font-family:Manrope Variable;font-style:normal;font-display:swap;font-weight:200 800;src:url(../media/manrope-greek-wght-normal.37b2k1x9f-55d.woff2)format("woff2-variations");unicode-range:U+370-377,U+37A-37F,U+384-38A,U+38C,U+38E-3A1,U+3A3-3FF}@font-face{font-family:Manrope Variable;font-style:normal;font-display:swap;font-weight:200 800;src:url(../media/manrope-vietnamese-wght-normal.3xvzy9_grgcx4.woff2)format("woff2-variations");unicode-range:U+102-103,U+110-111,U+128-129,U+168-169,U+1A0-1A1,U+1AF-1B0,U+300-301,U+303-304,U+308-309,U+323,U+329,U+1EA0-1EF9,U+20AB}@font-face{font-family:Manrope Variable;font-style:normal;font-display:swap;font-weight:200 800;src:url(../media/manrope-latin-ext-wght-normal.0-hru0xfwhnbp.woff2)format("woff2-variations");unicode-range:U+100-2BA,U+2BD-2C5,U+2C7-2CC,U+2CE-2D7,U+2DD-2FF,U+304,U+308,U+329,U+1D00-1DBF,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20C0,U+2113,U+2C60-2C7F,U+A720-A7FF}@font-face{font-family:Manrope Variable;font-style:normal;font-display:swap;font-weight:200 800;src:url(../media/manrope-latin-wght-normal.1p_a2k8qd5zhp.woff2)format("woff2-variations");unicode-range:U+??,U+131,U+152-153,U+2BB-2BC,U+2C6,U+2DA,U+2DC,U+304,U+308,U+329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}
@font-face{font-family:Atkinson Hyperlegible;font-style:normal;font-display:swap;font-weight:400;src:url(../media/atkinson-hyperlegible-latin-ext-400-normal.2f849img-7b6d.woff2)format("woff2"),url(../media/atkinson-hyperlegible-latin-ext-400-normal.3rh1rylag55x1.woff)format("woff");unicode-range:U+100-2BA,U+2BD-2C5,U+2C7-2CC,U+2CE-2D7,U+2DD-2FF,U+304,U+308,U+329,U+1D00-1DBF,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20C0,U+2113,U+2C60-2C7F,U+A720-A7FF}@font-face{font-family:Atkinson Hyperlegible;font-style:normal;font-display:swap;font-weight:400;src:url(../media/atkinson-hyperlegible-latin-400-normal.3kiu02q1_kqh0.woff2)format("woff2"),url(../media/atkinson-hyperlegible-latin-400-normal.1oa7hikx3rep8.woff)format("woff");unicode-range:U+??,U+131,U+152-153,U+2BB-2BC,U+2C6,U+2DA,U+2DC,U+304,U+308,U+329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}
@font-face{font-family:Atkinson Hyperlegible;font-style:normal;font-display:swap;font-weight:700;src:url(../media/atkinson-hyperlegible-latin-ext-700-normal.2n79xw2utfk64.woff2)format("woff2"),url(../media/atkinson-hyperlegible-latin-ext-700-normal.3rrhy5n1_o3ma.woff)format("woff");unicode-range:U+100-2BA,U+2BD-2C5,U+2C7-2CC,U+2CE-2D7,U+2DD-2FF,U+304,U+308,U+329,U+1D00-1DBF,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20C0,U+2113,U+2C60-2C7F,U+A720-A7FF}@font-face{font-family:Atkinson Hyperlegible;font-style:normal;font-display:swap;font-weight:700;src:url(../media/atkinson-hyperlegible-latin-700-normal.417-y-7y4nwlv.woff2)format("woff2"),url(../media/atkinson-hyperlegible-latin-700-normal.0i9r-tkp8wzyy.woff)format("woff");unicode-range:U+??,U+131,U+152-153,U+2BB-2BC,U+2C6,U+2DA,U+2DC,U+304,U+308,U+329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}
:root,[data-theme=day]{--font-display:"Fraunces Variable", Georgia, serif;--font-sans:"Manrope Variable", ui-sans-serif, sans-serif;--font-reading:"Atkinson Hyperlegible", ui-sans-serif, sans-serif;--paper:#fff;--field:#fff;--surface-soft:#f4f6fc;--ink:#162440;--on-field:#162440;--muted:#59657a;--accent:#244ae5;--action:#244ae5;--action-hover:#193bc6;--on-action:#fff;--accent-soft:#edf1ff;--rule:#dfe4ee;--paper-rule:#dfe4ee;--error:#b52e40;--error-on-paper:#b52e40;--error-soft:#fff1f2;--danger-action:#a82034;--danger-action-hover:#851729;--on-danger:#fff;--evidence:#17684b;--evidence-soft:#edf7f1;--warning:#855300;--focus:#244ae5;--shadow:0 20px 64px #1f397017;--page-gutter:clamp(1.25rem, 4.5vw, 4.5rem);--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light}[data-theme=night]{--paper:#172135;--field:#10192a;--surface-soft:#1d2a43;--ink:#edf2ff;--on-field:#edf2ff;--muted:#b3bfd4;--accent:#a8bdff;--accent-soft:#263758;--rule:#34425b;--paper-rule:#34425b;--error:#ffabb5;--error-on-paper:#ffabb5;--error-soft:#442736;--danger-action:#d94f62;--danger-action-hover:#ef7182;--on-danger:#10192a;--evidence:#9edbbd;--evidence-soft:#203b37;--warning:#f1cd86;--focus:#a8bdff;--shadow:0 20px 64px #0003;--lightningcss-light: ;--lightningcss-dark:initial;color-scheme:dark}*{box-sizing:border-box}html{background:var(--field);min-height:100%}body{background:var(--field);color:var(--on-field);font-family:var(--font-sans);margin:0}::selection{background:var(--action);color:var(--on-action)}a{color:inherit}button,input,select,textarea{font:inherit}:focus-visible{outline:3px solid var(--focus);outline-offset:3px}.skip-link{z-index:20;background:var(--action);color:var(--on-action);padding:.7rem 1rem;font-weight:700;position:absolute;top:0;left:1rem;transform:translateY(-120%)}.skip-link:focus{transform:translateY(.75rem)}.visually-hidden{clip:rect(0 0 0 0);clip-path:inset(50%);white-space:nowrap;width:1px;height:1px;position:absolute;overflow:hidden}.sheet-masthead,.site-nav,.onboarding-header,.auth-header,.session-header,.admin-topbar,.editor-statusbar,.import-statusbar{background:var(--paper);color:var(--ink);min-height:76px;padding:0 max(var(--page-gutter), env(safe-area-inset-right,0px)) 0 max(var(--page-gutter), env(safe-area-inset-left,0px));z-index:8;grid-template-columns:auto 1fr auto;align-items:center;display:grid;position:sticky;top:0}.wordmark{color:var(--accent);font-family:var(--font-sans);letter-spacing:-.04em;text-transform:none;align-items:flex-start;font-size:2rem;font-weight:800;line-height:1;text-decoration:none;display:inline-flex}.wordmark-dot{background:var(--accent);border-radius:50%;width:.42rem;height:.42rem;margin-top:.22rem;margin-left:.18rem;display:inline-block}.round-stamp,.round-stamp-spacer{letter-spacing:.14em;text-transform:none;justify-self:center;margin:0;font-size:.72rem;font-weight:700}.masthead-actions,.nav-actions{flex-shrink:0;justify-self:end;align-items:center;gap:.85rem;display:flex}.masthead-actions nav{gap:1.2rem;display:flex}.masthead-actions nav a{font-weight:800;text-decoration:none}.masthead-actions nav span{color:var(--muted);font-size:.78rem}.masthead-actions .session-status{color:var(--ink)}.learning-record h2{font-family:var(--font-display);letter-spacing:-.03em;text-transform:none;font-size:2rem}.theme-toggle,.admin-topbar>button,.masthead-actions>button{border:1px solid var(--rule);color:var(--ink);cursor:pointer;white-space:nowrap;background:0 0;flex-shrink:0;min-height:44px;padding:0 .9rem}.masthead-actions .text-link{white-space:nowrap;flex-shrink:0}.text-link{color:inherit;align-items:center;min-height:44px;font-weight:700;display:inline-flex}button.text-link{cursor:pointer;font:inherit;text-align:left;background:0 0;border:0;padding:0}button.text-link:disabled{cursor:wait;opacity:.55}.text-link.on-field{color:var(--accent)}.button{cursor:pointer;border:0;justify-content:center;align-items:center;gap:.4rem;min-height:52px;padding:0 1.4rem;font-weight:700;text-decoration:none;display:inline-flex}.button-primary{background:var(--action);color:var(--on-action);border-radius:8px}.button-primary:disabled{cursor:not-allowed;opacity:.45}.button-secondary{color:inherit;background:0 0;border:1px solid}.button-danger{background:var(--danger-action);color:var(--on-danger);border-radius:8px}.button-danger:hover:not(:disabled){background:var(--danger-action-hover)}.button-danger:disabled{cursor:not-allowed;opacity:.55}.button-small{min-height:44px}.account-shell{background:var(--field);color:var(--on-field);min-height:100vh}.account-content{max-width:1120px;padding:clamp(3rem, 8vw, 7rem) var(--page-gutter);margin:0 auto}.account-hero{border-bottom:1px solid var(--rule);align-items:center;gap:clamp(1.25rem,3vw,2.25rem);padding-bottom:clamp(2rem,5vw,3.5rem);display:flex}.account-avatar{background:var(--accent);color:var(--on-action);border-radius:50%;flex:none;justify-content:center;align-items:center;width:clamp(82px,12vw,116px);height:clamp(82px,12vw,116px);font-size:clamp(1.8rem,4vw,3rem);font-weight:800;display:inline-flex}.account-eyebrow,.account-panel-label{color:var(--accent);letter-spacing:.12em;text-transform:uppercase;margin:0 0 .75rem;font-size:.72rem;font-weight:800}.account-hero h1,.account-state h1{font-family:var(--font-display);letter-spacing:-.04em;overflow-wrap:anywhere;margin:0;font-size:clamp(2.8rem,6vw,5.5rem);font-weight:450;line-height:.98}.account-hero p:last-child,.account-state>p:not(.account-eyebrow),.account-panel>p:not(.account-panel-label){color:var(--muted);line-height:1.75}.account-hero p:last-child{overflow-wrap:anywhere;margin:1rem 0 0}.account-grid{grid-template-columns:minmax(0,1.35fr) minmax(280px,.8fr);margin-top:3rem;display:grid}.account-panel{min-width:0;padding:clamp(1.5rem,4vw,3rem)}.account-panel:first-child{border-right:1px solid var(--rule);padding-left:0}.account-panel:last-child{padding-right:0}.account-panel h2{font-family:var(--font-display);letter-spacing:-.03em;margin:0;font-size:clamp(2rem,4vw,3.3rem);font-weight:450;line-height:1.05}.account-panel .button{margin-top:1.25rem}.account-details h2{font-family:var(--font-sans);letter-spacing:0;font-size:1rem;font-weight:800}.account-details dl{border-top:1px solid var(--rule);margin:1.5rem 0}.account-details dl div{border-bottom:1px solid var(--rule);grid-template-columns:4rem minmax(0,1fr);gap:.75rem;padding:1rem 0;display:grid}.account-details dt{color:var(--muted);font-size:.75rem}.account-details dd{overflow-wrap:anywhere;margin:0;font-size:.85rem;font-weight:700}.account-state{max-width:760px;margin:clamp(2rem,8vw,6rem) auto}.account-state .loading-mark{margin-bottom:2rem}.account-state .button,.account-state .hero-actions{margin-top:1.5rem}.account-billing{border-top:1px solid var(--rule);grid-template-columns:minmax(0,1fr) minmax(280px,.8fr);align-items:start;gap:2rem;margin-top:clamp(2rem,6vw,5rem);padding-top:clamp(2rem,4vw,3rem);display:grid}.account-billing h2{font-family:var(--font-display);letter-spacing:-.03em;margin:0;font-size:clamp(2rem,4vw,3.3rem);font-weight:450;line-height:1.05}.account-billing>div:first-child>p:last-child{color:var(--muted);max-width:62ch;margin:1rem 0 0;line-height:1.7}.account-billing .loading-mark{margin-top:1.5rem}.account-billing-details dl{border-top:1px solid var(--rule);margin:0 0 1.5rem}.account-billing-details dl div{border-bottom:1px solid var(--rule);grid-template-columns:7rem minmax(0,1fr);gap:.75rem;padding:.9rem 0;display:grid}.account-billing-details dt{color:var(--muted);font-size:.75rem}.account-billing-details dd{text-transform:capitalize;margin:0;font-size:.85rem;font-weight:700}.account-billing-details .button{width:100%;margin-top:1rem}.account-billing-note{color:var(--muted);margin:0;font-size:.8rem;line-height:1.6}.account-billing-details .button+.account-billing-note{margin-top:.75rem}.account-danger{border-top:1px solid var(--rule);grid-template-columns:minmax(0,1fr) minmax(280px,.8fr);align-items:start;gap:2rem;margin-top:clamp(2rem,6vw,5rem);padding-top:clamp(2rem,4vw,3rem);display:grid}.account-danger h2{margin:0;font-size:1rem}.account-danger>div>p:last-child{color:var(--muted);max-width:62ch;margin:.75rem 0 0;line-height:1.7}.account-delete-link{color:var(--error);justify-self:end}.account-danger-confirm{background:var(--error-soft);border-left:1px solid var(--danger-action);padding:1.25rem}.account-danger-confirm>p:first-child{margin:0;line-height:1.6}.account-danger-actions{flex-wrap:wrap;gap:.75rem;margin-top:1rem;display:flex}.account-danger-actions .button{min-height:46px}.learner-history{border-top:1px solid var(--rule);margin-top:3rem;padding-top:3rem}.learner-overview h2,.learner-history-list h2,.learning-set-results h2{font-family:var(--font-display);letter-spacing:-.025em;margin:0 0 1.2rem;font-size:clamp(1.8rem,3vw,2.6rem);font-weight:450}.learner-overview{max-width:780px}.learner-overview>p,.learner-insight p,.learner-score p{color:var(--muted);line-height:1.65}.learner-score{border-bottom:1px solid var(--rule);padding:.5rem 0 1.4rem}.learner-score>strong{color:var(--ink);font-family:var(--font-display);font-size:clamp(3.5rem,7vw,5rem);font-weight:450;line-height:1;display:block}.learner-score small{color:var(--muted);font-family:var(--font-sans);font-size:1rem}.learner-score>span{color:var(--muted);margin-top:.65rem;display:block}.learner-insight{margin:1.8rem 0}.learner-score-timeline{border-bottom:1px solid var(--rule);gap:0;margin:0;padding:1.2rem 0 1.5rem;list-style:none;display:flex;overflow-x:auto}.learner-score-timeline li{border-left:1px solid var(--rule);flex:1 0 90px;gap:.2rem;padding:0 .8rem;display:grid}.learner-score-timeline li:first-child{border-left:0;padding-left:0}.learner-score-timeline span,.learner-score-timeline small{color:var(--muted);font-size:.76rem}.learner-score-timeline strong{font-variant-numeric:tabular-nums;font-size:1.15rem}.learner-history-list{margin-top:3.5rem}.learner-history-item{border-top:1px solid var(--rule);color:var(--ink);justify-content:space-between;align-items:center;gap:1rem;padding:1.1rem 0;text-decoration:none;display:flex}.learner-history-item:last-child{border-bottom:1px solid var(--rule)}.learner-history-item:hover strong:first-child{color:var(--accent)}.learner-history-item small{color:var(--muted);margin-top:.25rem;font-size:.82rem;font-weight:400;line-height:1.5;display:block}.learner-history-item>strong{font-variant-numeric:tabular-nums;flex:none}.learning-set-content{max-width:1020px;padding:clamp(2.5rem, 7vw, 6rem) var(--page-gutter) 6rem;margin:0 auto}.learning-set-content>h1{font-family:var(--font-display);letter-spacing:-.035em;max-width:16ch;margin:0;font-size:clamp(2.8rem,6vw,4.7rem);font-weight:450;line-height:1.08}.learning-set-intro{color:var(--muted);max-width:66ch;font-size:1.1rem;line-height:1.7}.learning-set-form{border-top:1px solid var(--rule);gap:.8rem;max-width:650px;margin:2.5rem 0 2rem;padding-top:2rem;display:grid}.learning-set-form label{margin-top:.7rem;font-weight:750}.learning-set-form input,.learning-set-form select{background:var(--paper);border:1px solid var(--rule);color:var(--ink);font:inherit;border-radius:8px;width:100%;min-height:48px;padding:.65rem .85rem}.learning-set-form input:focus-visible,.learning-set-form select:focus-visible,.learning-set-question-nav button:focus-visible,.learning-set-option:focus-within{outline:2px solid var(--focus);outline-offset:3px}.learning-set-form .button{justify-self:start;margin-top:.8rem}.learning-set-hint{color:var(--muted);margin:0;font-size:.9rem;line-height:1.6}.learning-set-fact{border-bottom:1px solid var(--rule);justify-content:space-between;gap:1rem;padding-bottom:1rem;display:flex}.learning-set-fact span{color:var(--muted)}.learning-set-topline{border-bottom:1px solid var(--rule);justify-content:space-between;align-items:center;gap:1rem;padding-bottom:1rem;display:flex}.learning-set-topline strong{font-variant-numeric:tabular-nums;font-size:1.4rem}.learning-set-warning{color:var(--warning);font-weight:700}.learning-set-question-nav{flex-wrap:wrap;gap:.35rem;margin:1.5rem 0 2.5rem;display:flex}.learning-set-question-nav button{border:1px solid var(--rule);color:var(--ink);cursor:pointer;font:inherit;background:0 0;border-radius:6px;min-width:44px;min-height:44px}.learning-set-question-nav button.is-current{background:var(--accent-soft);border-color:var(--accent);color:var(--accent);font-weight:800}.learning-set-question{max-width:760px}.learning-set-question h1{font-family:var(--font-reading);margin:1rem 0 2rem;font-size:clamp(1.3rem,2vw,1.7rem);font-weight:700;line-height:1.5}.learning-set-stimulus{font-family:var(--font-reading);white-space:pre-wrap;font-size:1.18rem;line-height:1.7}.learning-set-question fieldset{border:0;margin:0;padding:0}.learning-set-question legend{margin-bottom:.9rem;font-weight:750}.learning-set-option-row{border-top:1px solid var(--rule);justify-content:space-between;align-items:start;gap:1rem;display:flex}.learning-set-option-row:last-child{border-bottom:1px solid var(--rule)}.learning-set-option{cursor:pointer;flex:1;grid-template-columns:auto auto 1fr;align-items:start;gap:.8rem;padding:1rem 0;line-height:1.6;display:grid}.learning-set-option.is-eliminated span{color:var(--muted);text-decoration:line-through}.learning-set-eliminate{color:var(--accent);cursor:pointer;background:0 0;border:0;align-self:center;min-height:44px;font-size:.8rem}.learning-set-option input{margin-top:.35rem}.learning-set-option strong{color:var(--accent)}.learning-set-controls{border-top:1px solid var(--rule);flex-wrap:wrap;gap:1.5rem;margin-top:3rem;padding-top:1.2rem;display:flex}.learning-set-controls button:not(.text-link){color:var(--accent);cursor:pointer;font:inherit;text-underline-offset:.2em;background:0 0;border:0;padding:0;text-decoration:underline}.learning-set-controls button:disabled{cursor:not-allowed;opacity:.5}.learning-set-feedback{border-top:1px solid var(--rule);max-width:750px;margin:2rem 0;padding-top:2rem}.learning-set-feedback h2{font-family:var(--font-display);margin:0;font-size:2.2rem;font-weight:450}.learning-set-feedback p{line-height:1.7}.learning-set-results{border-top:1px solid var(--rule);margin-top:3rem;padding-top:2rem}.learning-set-result-row{border-bottom:1px solid var(--rule);justify-content:space-between;padding:.85rem 0;display:flex}.learning-set-review{border-bottom:1px solid var(--rule);padding:1rem 0}.learning-set-review summary{cursor:pointer;font-weight:700}.learning-set-review p{max-width:70ch;line-height:1.6}@media (max-width:640px){.learner-history{margin-top:2rem;padding-top:2rem}.learner-history-item{align-items:start}.learner-history-item>strong{font-size:.9rem}.learning-set-content{padding-bottom:4rem}.learning-set-form .button{justify-self:stretch}.learning-set-fact{flex-direction:column;gap:.25rem}.learning-set-question-nav{gap:.4rem}.learning-set-question-nav button{flex:0 0 44px}.learning-set-option{gap:.65rem}.learning-set-option-row{gap:.25rem}.learning-set-eliminate{flex:none;padding-inline:.2rem}.learning-set-controls{justify-content:space-between}}.place-value{font-family:var(--font-display);font-variant-numeric:tabular-nums;letter-spacing:-.04em;white-space:nowrap;font-size:clamp(1.85rem,7vw,3.4rem);font-weight:800;line-height:.9}.place-value em{color:var(--accent);font-style:normal}.sheet-masthead .place-value em,.result-evidence .place-value em,.learning-record .place-value em,[data-theme=day] .place-value em{color:var(--accent);background:0 0;padding:0}.action-note{color:var(--muted);margin:1.6rem 0 0;font-size:.78rem}.hero-actions{flex-wrap:wrap;align-items:center;gap:1rem;margin-top:1.6rem;display:flex}.session-shell,.result-shell,.workout-result,.state-shell,.auth-shell,.admin-shell,.onboarding-shell{background:var(--field);min-height:100vh;color:var(--on-field)}.session-header,.auth-header{justify-content:space-between;display:flex}.session-status{justify-self:end;align-items:baseline;gap:1rem;display:flex}.session-status span{letter-spacing:.08em;text-transform:none;font-size:.72rem;font-weight:700}.session-status strong,.score-line strong,.record-score strong{font-family:var(--font-display);font-size:2rem;font-weight:800}.session-progress{display:none}.question-layout,.result-grid,.workout-result-grid,.auth-layout{grid-template-columns:minmax(0,1.05fr) minmax(min(320px,100%),.95fr);min-height:calc(100vh - 76px);display:grid}.question-layout>*,.result-grid>*,.workout-result-grid>*,.auth-layout>*{min-width:0}.question-copy,.result-lead,.workout-result-lead,.auth-context{padding:clamp(2.5rem, 6vw, 5.5rem) var(--page-gutter)}.stimulus{font-family:var(--font-reading);white-space:pre-line;max-width:62ch;font-size:clamp(1.15rem,1.45vw,1.28rem);line-height:1.65}.question-copy h1,.auth-context>p:last-child,.result-summary{color:var(--muted);max-width:58ch;margin:1.6rem 0 0;font-size:1.05rem;font-weight:400;line-height:1.65}.answer-panel,.result-evidence,.learning-record,.auth-form{background:var(--paper);color:var(--ink);padding:clamp(2rem,5vw,4.5rem)}.answer-panel fieldset{border:0;margin:0;padding:0}.answer-panel legend{font-family:var(--font-display);letter-spacing:-.03em;text-transform:none;margin-bottom:1.2rem;font-size:1.5rem}.answer-list{border-top:1px solid var(--paper-rule)}.answer-option{border-bottom:1px solid var(--paper-rule);cursor:pointer;font-family:var(--font-reading);grid-template-columns:1.25rem 1.25rem 1fr;align-items:flex-start;gap:.7rem;padding:1.1rem .4rem;font-size:1.125rem;line-height:1.5;display:grid}.answer-option input{accent-color:var(--accent);width:1.2rem;height:1.2rem;margin-top:.2rem}.answer-label{font-family:var(--font-display);font-size:1.45rem;font-weight:800}.answer-option-correct{background:var(--evidence-soft)}.answer-option-incorrect{background:var(--error-soft)}.answer-state{letter-spacing:.08em;text-transform:none;grid-column:3;font-size:.7rem}.answer-actions{justify-content:space-between;align-items:center;gap:1rem;margin-top:1.8rem;display:flex}.answer-actions>span{color:var(--muted);font-size:.95rem;line-height:1.45}.inline-error,.form-message-error,.editor-error,.kicker-error{color:var(--error)}.editor-notice{border:1px solid var(--rule);margin:0 0 1rem;padding:.7rem 1rem;font-weight:700}.auth-form .form-message-error{color:var(--error-on-paper);font-size:1.05rem;font-weight:700;line-height:1.45}.auth-form .form-message-success{color:var(--ink);border-top:3px solid var(--ink);padding-top:.9rem;font-size:1.05rem;font-weight:700;line-height:1.45}.inline-error,.form-message{margin:1rem 0 0;font-size:.9rem;line-height:1.5}.answer-feedback{border-top:3px solid var(--ink);margin-top:2rem;padding-top:1.4rem}.feedback-verdict{font-family:var(--font-display);letter-spacing:-.03em;text-transform:none;margin:0 0 1.2rem;font-size:2rem}.feedback-correct .feedback-verdict{color:var(--ink)}.feedback-incorrect .feedback-verdict{color:var(--error-on-paper)}.answer-feedback div{border-top:1px solid var(--paper-rule);padding:1rem 0}.answer-feedback div>span{letter-spacing:.1em;font-size:.68rem;font-weight:800}.answer-feedback blockquote{margin:1rem 0 0;font-weight:700}.workout-brief{background:var(--paper);color:var(--ink);padding:0 var(--page-gutter);grid-template-columns:repeat(4,1fr);display:grid}.workout-brief>div{border-right:1px solid var(--paper-rule);padding:1.2rem}.workout-brief>div:last-child{border-right:0}.workout-brief span{letter-spacing:.12em;font-size:.64rem;font-weight:800}.workout-brief p{margin:.4rem 0 0;font-size:.82rem}.workout-brief-mobile{display:none}.transfer-intro{background:var(--accent);color:var(--on-action);padding:1.6rem var(--page-gutter);grid-template-columns:auto 1fr;align-items:center;gap:1.5rem;display:grid}.transfer-mark{font-family:var(--font-display);font-size:4rem;line-height:.8}.transfer-intro h2{font-family:var(--font-display);text-transform:none;margin:0;font-size:2rem}.result-lead h1,.workout-result-lead h1,.auth-context h1,.state-message h1,.admin-page-heading h1,.admin-state h2,.admin-empty h2{font-family:var(--font-display);letter-spacing:-.03em;text-transform:none;margin:0;font-size:clamp(2.5rem,4.4vw,4.2rem);font-weight:800;line-height:1.13}.result-status{letter-spacing:.1em;text-transform:none;font-size:.72rem;font-weight:800}.score-line,.record-score,.record-transfer{border-bottom:1px solid var(--paper-rule);justify-content:space-between;padding:1rem 0;display:flex}.skill-row{border-bottom:1px solid var(--paper-rule);justify-content:space-between;padding:.9rem 0;display:flex}.skill-row small{color:var(--muted);margin-top:.2rem;font-size:1.05rem;line-height:1.4;display:block}.pattern-explanation p,.pattern-explanation>strong{font-size:1.25rem;line-height:1.6}.pattern-explanation p{margin:.85rem 0 0}.pattern-explanation>strong{margin-top:1rem;display:block}.pattern-explanation h2,.plan-strip h2,.record-patterns h2{font-family:var(--font-display);letter-spacing:-.03em;text-transform:none;font-size:2rem}.plan-strip{background:var(--paper);color:var(--ink);padding:2.5rem var(--page-gutter) 3.5rem;grid-template-columns:minmax(240px,.8fr) minmax(0,1.2fr);gap:2rem;display:grid}.plan-strip form{grid-template-columns:1fr .8fr auto;align-items:end;gap:1rem;display:grid}.plan-strip label,.question-editor label{letter-spacing:.08em;text-transform:none;flex-direction:column;gap:.45rem;font-size:.72rem;font-weight:800;display:flex}.auth-form>label,.student-email-fields>label{letter-spacing:.06em;text-transform:none;flex-direction:column;gap:.55rem;font-size:.9rem;font-weight:800;display:flex}.plan-strip input,.question-editor input,.question-editor textarea,.question-editor select{background:var(--paper);border:1px solid var(--rule);color:var(--ink);min-height:50px;padding:0 .9rem}.auth-form input{background:var(--paper);border:1px solid var(--rule);color:var(--ink);min-height:56px;padding:0 1rem;font-size:1.125rem;font-weight:400}.state-message{max-width:720px;padding:0 var(--page-gutter);margin:clamp(5rem,16vh,10rem) auto 0}.state-message>p{max-width:38ch;margin:1.2rem 0 0;font-size:clamp(1.15rem,2vw,1.35rem);font-weight:700;line-height:1.5}.state-message .hero-actions{margin-top:1.8rem}.state-message .hero-actions .button{font-size:1.15rem}.loading-mark{border:3px solid var(--rule);border-right-color:var(--accent);width:34px;height:34px;margin-bottom:1.5rem;animation:.9s linear infinite loading-turn;display:block}.auth-mode{gap:1.5rem;margin-bottom:1.8rem;display:flex}.auth-mode button{color:var(--muted);cursor:pointer;background:0 0;border:0;border-bottom:3px solid #0000;min-height:52px;padding:0;font-size:1.15rem;font-weight:800}.auth-mode button[aria-selected=true],.student-auth-form .auth-mode button[aria-pressed=true]{border-color:var(--ink);color:var(--ink)}.auth-form>.button{width:100%;min-height:56px;margin-top:.85rem;font-size:1.15rem}.auth-footnote{text-align:center;margin-top:1.2rem;font-size:.95rem;line-height:1.5}.auth-footnote a{color:var(--accent);text-underline-offset:.16em;font-weight:700}.auth-recovery-link,.auth-back-link{color:var(--accent);cursor:pointer;text-align:left;text-underline-offset:.2em;background:0 0;border:0;min-height:44px;padding:0;font-weight:700;text-decoration:underline}.auth-recovery-link{margin:-.7rem 0 1.4rem}.auth-back-link{margin:0 0 1.5rem}.auth-recovery-link:hover,.auth-back-link:hover{color:var(--action-hover)}.auth-field-hint{color:var(--muted);margin:-.5rem 0 1rem;font-size:.85rem;line-height:1.5}.auth-recovery-actions{align-items:flex-start;min-height:180px;display:flex}.admin-shell{background:var(--field)}.admin-topbar{display:grid}.admin-topbar nav{justify-self:center;gap:1.4rem;display:flex}.admin-topbar nav a{font-weight:800;text-decoration:none}.admin-topbar nav span{color:var(--muted);font-size:.78rem}.admin-page-heading{padding:2.4rem var(--page-gutter) 1.4rem}.admin-toolbar{padding:1rem var(--page-gutter) 1.4rem;justify-content:space-between;align-items:center;display:flex}.admin-toolbar strong{font-family:var(--font-display);font-size:2.4rem}.admin-toolbar-actions{gap:.7rem;display:flex}.admin-catalog-controls{border-bottom:1px solid var(--rule);border-top:1px solid var(--rule);margin:0 var(--page-gutter) 1.4rem;justify-content:space-between;align-items:center;display:flex}.admin-view-tabs,.admin-status-filters{display:flex}.admin-view-tabs a,.admin-status-filters a{color:currentColor;min-height:48px;padding:.85rem 1rem;font-size:.9rem;font-weight:800;text-decoration:none}.admin-view-tabs a[aria-current=page]{background:var(--accent);color:var(--on-action)}.admin-status-filters a[aria-current=page]{box-shadow:inset 0 -3px 0 var(--accent);color:var(--accent)}.admin-filter-notice{background:var(--accent-soft);margin:0 var(--page-gutter) 1.4rem;justify-content:space-between;align-items:center;gap:1rem;padding:.9rem 1rem;display:flex}.admin-state,.admin-empty{max-width:640px;padding:1.5rem var(--page-gutter);margin:4rem auto}.admin-table-wrap{padding:0 var(--page-gutter) 1.5rem;overflow-x:auto}.admin-table{border-collapse:collapse;width:100%;min-width:980px}.admin-table th{color:var(--muted);letter-spacing:.08em;text-align:left;text-transform:none;padding:1rem .7rem;font-size:.9rem}.admin-table td{border-top:1px solid var(--rule);vertical-align:top;padding:1.2rem .7rem;font-size:1.125rem;line-height:1.45}.admin-table td strong+span{margin-top:.25rem;display:block}.admin-selection-cell{width:3rem;text-align:center!important}.admin-selection-cell input{accent-color:var(--accent);width:1.1rem;height:1.1rem}.admin-pagination{padding:0 var(--page-gutter) 4rem;justify-content:space-between;align-items:center;gap:1.5rem;display:flex}.admin-pagination p{margin:0}.admin-page-size-options,.admin-page-navigation{align-items:center;gap:.35rem;display:flex}.admin-page-size-options a,.admin-page-size-options span,.admin-page-navigation a,.admin-page-navigation span{align-items:center;min-height:44px;padding:0 .65rem;display:inline-flex}.admin-page-size-options a,.admin-page-navigation a{color:currentColor;font-weight:800}.admin-page-size-options a[aria-current=page]{background:var(--accent);color:var(--on-action);text-decoration:none}.admin-page-navigation span[aria-disabled=true]{color:var(--muted)}.status-chip{white-space:nowrap;border:1px solid;padding:.38rem .6rem;font-size:.88rem;font-weight:800;display:inline-flex}.status-published{background:var(--accent);border-color:var(--accent);color:var(--on-action)}.status-failed{border-style:dashed}.admin-table th,.admin-table td:nth-child(4),.admin-row-actions .text-link{white-space:nowrap}.admin-row-actions{flex-direction:column;align-items:flex-start;gap:.45rem;display:flex}.usage-toolbar{border-bottom:1px solid var(--rule);border-top:1px solid var(--rule);margin:0 var(--page-gutter);justify-content:space-between;align-items:end;gap:2rem;padding:1.35rem 0;display:flex}.usage-toolbar p{color:var(--muted);max-width:64ch;margin:.3rem 0 0}.usage-kicker,.usage-section header span{letter-spacing:.12em;text-transform:none;font-size:.78rem;font-weight:800}.usage-window{flex:none;display:flex}.usage-window button{border:1px solid var(--rule);color:currentColor;cursor:pointer;font:inherit;background:0 0;min-height:44px;padding:0 1rem;font-weight:800}.usage-window button+button{border-left:0}.usage-window button[aria-pressed=true]{background:var(--accent);color:var(--on-action)}.usage-scoreboard{margin:2.2rem var(--page-gutter) 0;grid-template-columns:minmax(240px,.8fr) minmax(0,1.6fr);gap:0;display:grid}.usage-primary-metric{background:var(--accent);color:var(--on-action);flex-direction:column;justify-content:space-between;min-height:220px;padding:1.35rem;display:flex}.usage-primary-metric>span{font-size:.9rem;font-weight:800}.usage-primary-metric strong{font-family:var(--font-display);letter-spacing:-.03em;font-size:clamp(3.5rem,6vw,5rem);line-height:1.05}.usage-primary-metric small{font-size:.95rem;font-weight:800}.usage-scoreboard>dl{border-bottom:1px solid var(--rule);border-top:1px solid var(--rule);grid-template-columns:repeat(2,minmax(0,1fr));margin:0;display:grid}.usage-scoreboard>dl>div{padding:1.35rem}.usage-scoreboard>dl>div:nth-child(odd){border-right:1px solid var(--rule)}.usage-scoreboard>dl>div:nth-child(-n+2){border-bottom:1px solid var(--rule)}.usage-scoreboard dt{color:var(--muted);font-size:.84rem;font-weight:800}.usage-scoreboard dd{font-family:var(--font-display);margin:.65rem 0 0;font-size:clamp(2rem,4vw,3.4rem);line-height:1}.usage-section{margin:4rem var(--page-gutter) 0}.usage-section>header{justify-content:space-between;align-items:end;margin-bottom:1rem;display:flex}.usage-section h2{font-family:var(--font-display);margin:.25rem 0 0;font-size:2.25rem}.usage-section header small{color:var(--muted)}.usage-feature-head,.usage-feature-row{grid-template-columns:minmax(180px,1.5fr) repeat(4,minmax(65px,.65fr)) repeat(2,minmax(100px,.9fr));align-items:center;gap:1rem;padding:1rem .7rem;display:grid}.usage-feature-head{color:var(--muted);letter-spacing:.08em;text-transform:none;font-size:.78rem;font-weight:800}.usage-feature-row{border-top:1px solid var(--rule);font-size:1.05rem}.usage-feature-row strong{font-size:1.12rem}.usage-issues{border-top:1px solid var(--rule)}.usage-issues article{border-bottom:1px solid var(--rule);grid-template-columns:minmax(200px,.7fr) minmax(0,1.5fr);gap:1.5rem;padding:1.25rem .7rem;display:grid}.usage-issues article>div{align-items:center;gap:.8rem;display:flex}.usage-issues dl{grid-template-columns:repeat(4,minmax(0,1fr));gap:1rem;margin:0;display:grid}.usage-issues dt{color:var(--muted);font-size:.78rem;font-weight:800}.usage-issues dd{overflow-wrap:anywhere;margin:.25rem 0 0}.usage-clear{border-top:1px solid var(--rule);margin:0;padding:1.4rem .7rem}.usage-cost-note{border:1px solid var(--rule);margin:3rem var(--page-gutter) 5rem;max-width:760px;padding:1.2rem 1.35rem}.usage-cost-note p{color:var(--muted);margin:.35rem 0 0}.usage-empty>div{flex-wrap:wrap;gap:1.2rem;display:flex}.batch-source{border-top:1px solid var(--rule);margin:0 var(--page-gutter) 1.6rem;max-width:72ch;padding:1.2rem 0 0}.batch-source header{justify-content:space-between;margin-bottom:.7rem;display:flex}.batch-source header span{color:var(--muted);letter-spacing:.08em;text-transform:none;font-size:.9rem}.batch-source h2{font-family:var(--font-display);letter-spacing:-.03em;margin:.8rem 0 1rem;font-size:1.7rem}.batch-source p{white-space:pre-wrap;line-height:1.55}.editor-statusbar-embedded{position:static}.editor-statusbar{gap:.8rem;padding-top:.65rem;padding-bottom:.65rem}.editor-statusbar>div{flex-wrap:wrap;align-items:center;gap:.6rem;display:flex}.editor-statusbar .status-chip{white-space:nowrap}.editor-actions .button{min-height:44px}.question-editor-layout{grid-template-columns:minmax(0,1.08fr) minmax(320px,.92fr);display:grid}.question-editor{padding:2rem var(--page-gutter) 5rem}.question-editor fieldset{border:0;border-top:1px solid var(--rule);margin:0 0 2.5rem;padding:1.2rem 0 0}.question-editor legend{font-family:var(--font-display);text-transform:none;font-size:1.6rem}.question-preview{background:var(--paper);color:var(--ink);padding:2rem}.screenshot-dropzone{background:var(--paper);border:1px dashed var(--ink);color:var(--ink);cursor:pointer;place-items:center;min-height:280px;padding:2rem;display:grid;position:relative}.screenshot-dropzone input{opacity:0;width:1px;height:1px;position:absolute}.screenshot-dropzone.is-disabled,.import-selection-actions .is-disabled{cursor:not-allowed;opacity:.55}.screenshot-import-layout{grid-template-columns:minmax(0,1.1fr) minmax(280px,.9fr);display:grid}.screenshot-import-task,.import-expectations{padding:2rem var(--page-gutter) 4rem}.import-step{grid-template-columns:auto 1fr;gap:1rem;margin-bottom:1.5rem;display:grid}.import-step span{font-family:var(--font-display);font-size:2.4rem;line-height:.8}.import-file-row,.import-actions{justify-content:space-between;align-items:center;margin-top:1.2rem;display:flex}.import-selection-actions{align-items:center;gap:1rem;margin-top:1rem;display:flex}.import-selection-actions>span,.import-queue-summary span,.import-queue-list li>div span,.import-rejections{color:var(--muted);font-size:.78rem;line-height:1.5}.import-queue{border-bottom:1px solid var(--rule);padding:1.25rem var(--page-gutter)}.import-queue-summary{justify-content:space-between;align-items:baseline;gap:1rem;margin-bottom:.8rem;display:flex}.import-queue-summary div{flex-wrap:wrap;align-items:baseline;display:flex}.import-queue-list{border:1px solid var(--rule);max-height:280px;margin:0;padding:0;list-style:none;overflow:auto}.import-queue-list li{border-top:1px solid var(--rule);grid-template-columns:auto minmax(0,1fr) auto minmax(80px,auto);align-items:center;gap:.75rem;min-height:52px;padding:.6rem .8rem;display:grid}.import-queue-list li:first-child{border-top:0}.import-queue-list li.is-active{background:var(--paper);color:var(--ink)}.import-queue-list li>div{min-width:0}.import-queue-list li>div strong,.import-queue-list li>div span{overflow-wrap:anywhere;display:block}.import-queue-index{color:var(--muted);font-family:var(--font-display)}.import-queue-status{border:1px solid var(--rule);white-space:nowrap;padding:.2rem .45rem}.import-queue-status.status-saved{border-color:var(--accent);color:var(--accent)}.import-queue-status.status-failed{color:var(--danger-action)}.import-queue-actions{justify-content:flex-end;gap:.6rem;display:flex}.import-queue-actions button{padding:0}.import-rejections{border-left:3px solid var(--rule);margin-top:1rem;padding-left:.8rem}.import-rejections ul{margin:.4rem 0;padding-left:1.1rem}.import-privacy{color:var(--muted);font-size:.78rem;line-height:1.5}.confidence-note{max-width:48ch;margin:1.4rem 0 0}.editor-grid,.editor-grid-3{grid-template-columns:repeat(2,minmax(0,1fr));gap:1rem;display:grid}.import-review-note{background:var(--paper);color:var(--ink);padding:1rem var(--page-gutter)}.kicker{display:none}html{scrollbar-color:var(--muted) var(--field);scroll-padding-top:100px}a{text-underline-offset:.22em}input,textarea{caret-color:var(--accent)}input::placeholder,textarea::placeholder{color:var(--muted);opacity:1}input,select,textarea,.theme-toggle,.button-secondary{border-radius:8px}button,a,summary{-webkit-tap-highlight-color:transparent}.button svg,.text-link svg{flex:none;width:20px;height:20px}.button{gap:.8rem;transition:background-color .16s,border-color .16s}.button-primary:hover:not(:disabled){background:var(--action-hover)}.button-secondary:hover:not(:disabled),.theme-toggle:hover{background:var(--surface-soft)}.text-link:hover{text-decoration-thickness:2px}.sheet-masthead{border-bottom:1px solid var(--rule)}.wordmark-dot{display:none}.round-stamp{color:var(--muted);letter-spacing:0;font-size:.85rem;font-weight:600}.theme-toggle{justify-content:center;align-items:center;gap:.4rem;font-size:.8rem;display:inline-flex}.theme-toggle svg{width:17px;height:17px}.place-value,.session-status strong,.score-line strong,.record-score strong,.answer-label{font-family:var(--font-sans);letter-spacing:-.02em;font-weight:700;line-height:1.3}.masthead-actions .place-value{font-size:1rem}.session-status{align-items:center;gap:1.2rem}.session-status span{letter-spacing:0;font-size:.8rem}.session-exit{color:var(--muted);white-space:nowrap;font-size:.8rem}.question-layout,.result-grid,.workout-result-grid{max-width:1440px;min-height:calc(100vh - 180px);margin-inline:auto}.question-copy,.result-lead,.workout-result-lead{padding-block:3.5rem}.answer-panel,.result-evidence,.learning-record{border-left:1px solid var(--rule);padding:3.5rem var(--page-gutter)}.question-copy h1{color:var(--ink);font-size:1.12rem;font-weight:700}.question-copy:focus{outline:none}.answer-panel legend{font-family:var(--font-sans);letter-spacing:0;font-size:1rem;font-weight:700}.answer-option{border-radius:6px;padding:1rem .6rem}.answer-option:has(input:checked):not(.answer-option-correct):not(.answer-option-incorrect){background:var(--accent-soft)}.answer-option:has(input:focus-visible){outline:2px solid var(--focus);outline-offset:2px}.answer-option:hover:not(:has(input:disabled)){background:var(--surface-soft)}.answer-panel .inline-error{color:var(--error-on-paper)}.answer-actions{flex-direction:column;align-items:stretch}.answer-actions>span{font-size:.85rem}.answer-actions .button{align-self:flex-start}.feedback-verdict{font-family:var(--font-sans);letter-spacing:0;font-size:1.15rem;font-weight:700;line-height:1.5}.answer-feedback{border-top-width:1px;border-color:var(--rule)}.answer-feedback p,.answer-feedback blockquote{font-family:var(--font-reading);font-size:1.1rem;line-height:1.65}.answer-feedback div>span{font-family:var(--font-sans);letter-spacing:.05em;font-size:.75rem}.transfer-intro{background:var(--accent-soft);color:var(--ink)}.transfer-mark{font-family:var(--font-sans);color:var(--accent);font-size:2rem}.transfer-intro h2{font-size:1.7rem;font-weight:500}.transfer-intro p{color:var(--muted);line-height:1.6}.result-lead h1,.workout-result-lead h1,.auth-context h1,.state-message h1{font-weight:450}.result-lead h1 em,.workout-result-lead h1 em{color:var(--accent);font-weight:450}.confidence-note{color:var(--muted);gap:.5rem;font-size:.9rem;line-height:1.6;display:grid}.confidence-note strong{color:var(--ink)}.pattern-explanation h2,.learning-record h2{font-family:var(--font-sans);font-size:1.2rem;font-weight:700}.pattern-explanation p,.pattern-explanation>strong{font-family:var(--font-reading);font-size:1.15rem}.plan-strip{border-top:1px solid var(--rule)}.plan-strip h2{margin-top:0;font-size:1.65rem;font-weight:500}.plan-strip p{color:var(--muted);font-size:.9rem;line-height:1.6}.plan-strip label{letter-spacing:0;font-size:.8rem}.auth-layout{align-items:start;max-width:1100px;min-height:0;margin:clamp(2rem,8vw,7rem) auto}.auth-context{padding:2rem var(--page-gutter)}.auth-form{border-left:1px solid var(--rule);padding-block:2rem}.auth-form>label{letter-spacing:0;margin-bottom:1.25rem;font-weight:600}.auth-mode button{font-size:1rem}.auth-mode button[aria-selected=true]{border-color:var(--accent);color:var(--accent)}.auth-footnote{color:var(--muted);font-size:.8rem}.student-email-fields{border:0;min-width:0;margin:0;padding:0}.student-auth-legend{clip-path:inset(50%);white-space:nowrap;width:1px;height:1px;margin:-1px;padding:0;position:absolute;overflow:hidden}.student-email-fields>label{letter-spacing:0;margin-bottom:1.25rem;font-weight:600}.student-auth-form .auth-mode button[aria-pressed=true]{border-color:var(--accent);color:var(--accent)}.student-social-login{gap:.75rem;margin-bottom:.5rem;display:grid}.student-provider-option{gap:.65rem;display:grid}.student-provider{gap:.9rem;width:100%;min-height:56px}.student-provider span{font-size:1.25rem;line-height:1}.student-provider:disabled{opacity:.55;cursor:wait}.student-provider-disclosure{color:var(--muted);margin:0;font-size:.78rem;line-height:1.55}.student-provider-disclosure a{color:var(--ink);text-underline-offset:.2em}.student-provider-disclosure a:hover{color:var(--accent)}.student-auth-divider{color:var(--muted);align-items:center;gap:.8rem;margin:1rem 0;font-size:.8rem;display:flex}.student-auth-divider:before,.student-auth-divider:after{content:"";background:var(--rule);flex:1;height:1px}.admin-page-heading h1,.admin-state h2,.admin-empty h2{font-family:var(--font-sans);font-size:clamp(2rem,4vw,3rem);line-height:1.2}.status-published{background:var(--accent-soft);color:var(--accent);border-color:var(--rule)}.usage-primary-metric,.usage-window button[aria-pressed=true]{background:var(--action)}.loading-mark{border-radius:50%}@keyframes loading-turn{to{transform:rotate(360deg)}}@media (max-width:900px){.question-layout,.result-grid,.workout-result-grid,.auth-layout,.question-editor-layout,.screenshot-import-layout,.plan-strip{grid-template-columns:1fr}.workout-brief{grid-template-columns:1fr 1fr}}@media (max-width:640px){.import-statusbar{grid-template-columns:minmax(0,1fr) auto;gap:.35rem .75rem;min-height:0;padding-block:.65rem;position:static}.import-status-copy{color:var(--muted);grid-area:2/1/auto/-1;font-size:.78rem;line-height:1.45}.import-statusbar>:last-child:not(.import-status-copy){justify-self:end}.import-actions,.import-queue-summary,.import-selection-actions{flex-direction:column;align-items:stretch}.import-queue-list li{grid-template-columns:auto minmax(0,1fr) auto}.import-queue-list li>:last-child{grid-column:2/-1;justify-self:start}.import-queue{padding-inline:var(--page-gutter)}.sheet-masthead{grid-template-rows:auto auto;grid-template-columns:minmax(0,1fr) auto;align-items:center;gap:.15rem .55rem;min-height:0;padding-top:.4rem;padding-bottom:.5rem}.wordmark{grid-area:1/1;font-size:1.55rem}.masthead-actions{grid-area:1/2;gap:.45rem}.round-stamp{letter-spacing:.1em;grid-area:2/1/auto/-1;justify-self:start;font-size:.62rem}.round-stamp-spacer{display:none}.theme-toggle{padding:0 .6rem;font-size:.72rem}.masthead-actions .session-status span{display:none}.masthead-actions .place-value,.session-status strong{font-size:1.35rem}.hero-actions,.answer-actions,.plan-strip form{flex-direction:column;align-items:stretch}.result-lead h1,.workout-result-lead h1,.auth-context h1,.state-message h1,.admin-page-heading h1,.admin-state h2,.admin-empty h2{font-size:clamp(2.35rem,11vw,3.4rem)}.auth-context>p:last-child,.auth-footnote{overflow-wrap:break-word}.auth-form{padding:1.6rem var(--page-gutter) 2.2rem}.button{width:100%}.account-content{padding-block:2.5rem}.account-hero{align-items:flex-start}.account-grid{grid-template-columns:1fr;margin-top:2rem}.account-panel{padding:2rem 0}.account-panel:first-child{border-bottom:1px solid var(--rule);border-right:0}.account-danger,.account-billing{grid-template-columns:1fr}.account-delete-link{justify-self:start}.account-danger-actions{flex-direction:column;align-items:stretch}.question-copy,.result-lead,.workout-result-lead{padding-block:2rem}.answer-panel,.result-evidence,.learning-record,.answer-column{border-left:0;border-top:1px solid var(--rule);padding:2rem var(--page-gutter)}.answer-column{padding:0}.workout-question-layout .answer-panel{padding:2rem var(--page-gutter)}.discussion{margin-inline:var(--page-gutter)}.auth-form{border-left:0;border-top:1px solid var(--rule)}.answer-actions .button{align-self:stretch}.plan-strip form{grid-template-columns:1fr}.session-exit{font-size:.75rem}.session-status{gap:.6rem}.theme-toggle svg{width:15px;height:15px}.theme-toggle-label{display:none}.theme-toggle{width:44px;padding:0}.record-transfer{gap:1rem}.record-transfer strong{text-align:right}.workout-brief{display:none}.workout-brief-mobile{background:var(--paper);color:var(--ink);padding:0 var(--page-gutter);display:block}.workout-brief-mobile summary{cursor:pointer;min-height:52px;padding:1rem 0;font-weight:800}.admin-topbar nav,.admin-shell .masthead-actions nav{display:none}.editor-statusbar{grid-template-columns:auto minmax(0,1fr)}.editor-statusbar>.text-link{white-space:nowrap}.editor-statusbar>div:not(.editor-actions){justify-content:flex-end}.editor-statusbar .editor-actions{grid-column:1/-1;display:flex}.editor-actions .button{flex:1;width:auto;padding-inline:.6rem}.admin-toolbar{flex-direction:column;align-items:stretch;gap:1rem}.admin-toolbar-actions{gap:.6rem;display:grid}.admin-catalog-controls{flex-direction:column;align-items:stretch}.admin-view-tabs,.admin-status-filters{grid-template-columns:repeat(3,minmax(0,1fr));display:grid}.admin-status-filters{grid-template-columns:repeat(4,minmax(0,1fr))}.admin-view-tabs a,.admin-status-filters a{text-align:center;padding-inline:.35rem}.admin-filter-notice{flex-direction:column;align-items:flex-start}.admin-pagination{flex-direction:column;align-items:stretch;gap:.6rem}.admin-page-size-options,.admin-page-navigation{grid-template-columns:repeat(3,minmax(0,1fr));display:grid}.admin-page-navigation{grid-template-columns:repeat(2,minmax(0,1fr))}.admin-page-size-options a,.admin-page-size-options span,.admin-page-navigation a,.admin-page-navigation span{justify-content:center}.usage-toolbar{flex-direction:column;align-items:stretch;gap:1rem}.usage-window{grid-template-columns:repeat(3,1fr);display:grid}.usage-window button{padding:0 .45rem}.usage-scoreboard{grid-template-columns:1fr;margin-top:1.4rem}.usage-primary-metric{min-height:190px}.usage-scoreboard>dl{border-top:0}.usage-section{margin-top:3rem}.usage-section>header{flex-direction:column;align-items:start;gap:.5rem}.usage-feature-head{display:none}.usage-feature-row{grid-template-columns:repeat(3,minmax(0,1fr));gap:.8rem 1rem;padding:1.1rem 0}.usage-feature-row strong{grid-column:1/-1}.usage-feature-row span:before{color:var(--muted);content:attr(data-label);margin-bottom:.2rem;font-size:.72rem;font-weight:800;display:block}.usage-issues article{grid-template-columns:1fr;padding-inline:0}.usage-issues dl{grid-template-columns:repeat(2,minmax(0,1fr))}.usage-cost-note{margin-top:2rem}.transfer-intro{grid-template-columns:1fr}}@media (prefers-reduced-motion:reduce){*,:before,:after{scroll-behavior:auto!important;transition:none!important;animation:none!important}.loading-mark{border-right-color:var(--accent);animation:none}}.answer-column{background:var(--paper);border-left:1px solid var(--rule);min-width:0}.workout-question-layout .answer-panel{border-left:0}.discussion{margin:0 var(--page-gutter) 2.5rem;background:var(--surface-soft);border:1px solid var(--rule);border-radius:14px;padding:1rem 1rem .9rem}.discussion-header,.profile-header,.profile-counts,.discussion-composer div{justify-content:space-between;align-items:center;gap:.75rem;display:flex}.discussion-header h2{font-family:var(--font-sans);margin:0;font-size:1rem;font-weight:700}.discussion-bookmark,.discussion-sort button,.discussion-actions button,.discussion-report button{min-height:36px;color:var(--muted);font:inherit;background:0 0;border:1px solid #0000;border-radius:999px;justify-content:center;align-items:center;gap:.35rem;padding:0 .7rem;font-size:.85rem;display:inline-flex}.discussion-bookmark svg,.discussion-actions svg,.discussion-post svg{width:18px;height:18px}.discussion-bookmark.is-saved,.discussion-actions button[aria-pressed=true]{color:var(--accent);background:var(--accent-soft)}.discussion-bookmark.is-saved svg,.discussion-actions button[aria-pressed=true] svg{fill:currentColor}.discussion-sort{gap:.35rem;margin:.8rem 0;display:flex}.discussion-sort button[aria-pressed=true]{background:var(--paper);color:var(--ink);border-color:var(--rule);font-weight:700}.discussion-list,.discussion-replies,.saved-questions,.profile-activity{margin:0;padding:0;list-style:none}.discussion-replies{border-left:1px solid var(--rule);margin-left:2.4rem;padding-left:.8rem}.discussion-comment{border-top:1px solid var(--rule);grid-template-columns:auto minmax(0,1fr);gap:.15rem .7rem;padding:.85rem 0;display:grid}.discussion-meta{justify-content:space-between;align-items:baseline;gap:.6rem;min-width:0;display:flex}.discussion-avatar{background:var(--paper);width:2rem;height:2rem;color:var(--accent);border-radius:999px;place-items:center;font-weight:700;display:inline-grid}.discussion-author{align-items:center;gap:.55rem;min-width:0;display:inline-flex}.discussion-author span{gap:.4rem;min-width:0;display:flex}.discussion-author strong{font-size:.92rem}.discussion-author span span,.discussion-comment time{color:var(--muted);font-size:.8rem}.discussion-comment p{grid-column:2/-1;margin:.15rem 0 .35rem}.discussion-actions{grid-column:2/-1;gap:.2rem;display:flex}.discussion-actions button{min-width:36px;padding-inline:.45rem}.discussion-actions button:disabled{opacity:.45}.discussion-composer textarea,.profile-editor input,.profile-editor textarea{border:1px solid var(--rule);width:100%;font:inherit;background:var(--paper);color:var(--ink);border-radius:8px;padding:.75rem}.discussion-composer{margin-top:.8rem}.discussion-post{width:44px;padding:0}.discussion-report{flex-wrap:wrap;grid-column:2/-1;gap:.35rem;display:flex}.discussion-notice,.discussion-status{color:var(--muted);font-size:.85rem}.profile-page,.saved-questions,.profile-editor{margin-top:1.5rem}.profile-activity li,.saved-questions li{border-top:1px solid var(--rule);padding:.9rem 0}.profile-editor{gap:.75rem;display:grid}@media (max-width:640px){.answer-column{border-left:0;border-top:1px solid var(--rule)}}