:root{--paper:#f6f7f2;--grid:#e3eaf2;--ink:#17233b;--ink-soft:#5a6478;--card:#fff;--math:#2b59c3;--math-soft:#e4ebfa;--english:#8e3b6b;--english-soft:#f5e6ee;--ai:#0f786e;--ai-soft:#dcf1ed;--margin-red:#f08080;--correct:#2e933c;--correct-soft:#e3f2e5;--wrong:#c0392b;--wrong-soft:#fae6e3;--radius:14px;--shadow:0 2px 10px #17233b14}*{box-sizing:border-box;margin:0;padding:0}body{color:var(--ink);background-color:var(--paper);background-image:linear-gradient(var(--grid) 1px, transparent 1px), linear-gradient(90deg, var(--grid) 1px, transparent 1px);background-size:28px 28px;font-family:Public Sans,system-ui,sans-serif;line-height:1.55}.wrap{max-width:860px;margin:0 auto;padding:20px 16px 64px}h1,h2,h3{letter-spacing:-.02em;font-family:Bricolage Grotesque,sans-serif}h1{font-size:clamp(1.7rem,4.5vw,2.3rem);font-weight:800;line-height:1.15}h2{font-size:1.25rem;font-weight:800}.muted{color:var(--ink-soft)}.sub{color:var(--ink-soft);max-width:56ch;margin-top:8px}a{color:var(--math)}a:focus-visible{outline:3px solid var(--math);outline-offset:2px;border-radius:4px}.skip-link{z-index:1001;background:var(--ink);color:#fff;border-radius:0 0 10px 10px;padding:10px 16px;font-weight:600;text-decoration:none;position:absolute;top:-100px;left:16px}.skip-link:focus{outline:3px solid var(--math);outline-offset:2px;top:0}.topbar{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:12px;padding:8px 0 22px;display:flex}.logo{letter-spacing:-.02em;color:var(--ink);font-family:Bricolage Grotesque,sans-serif;font-size:1.35rem;font-weight:800;text-decoration:none}.logo .amp{color:var(--math)}.logo .ink2{color:var(--english)}@media (max-width:560px){.topbar-home{flex-wrap:nowrap;align-items:flex-start;gap:8px;padding:6px 0 16px}.topbar-home .logo{white-space:nowrap;flex:none;font-size:1.05rem;line-height:36px}.topbar-home .btn-row{flex-wrap:wrap;flex:auto;justify-content:flex-end;gap:6px;min-width:0}.topbar-home .btn.small{white-space:nowrap;min-height:36px;padding:8px 10px;font-size:.82rem}.topbar-home .btn.small:lang(fr){padding:8px;font-size:.76rem}.topbar-home .nav-practice{display:none}}.btn{font:inherit;cursor:pointer;background:var(--ink);color:#fff;border:none;border-radius:10px;padding:11px 20px;font-size:.95rem;font-weight:600;text-decoration:none;transition:opacity .12s;display:inline-block}.btn:hover{opacity:.88}.btn:focus-visible{outline:3px solid var(--math);outline-offset:2px}.btn.ghost{color:var(--ink);border:1.5px solid var(--ink);background:0 0}.btn.small{padding:7px 14px;font-size:.85rem}.btn:disabled{opacity:.5;cursor:default}.btn-row{flex-wrap:wrap;gap:10px;margin-top:20px;display:flex}.fx-card{background:var(--card);border-radius:var(--radius);box-shadow:var(--shadow);text-align:center;margin-top:22px;padding:30px 26px}.fx-owned{color:var(--ink-soft);margin-top:8px;font-size:.9rem}.fx-progress{flex-wrap:wrap;justify-content:center;gap:5px;margin-bottom:22px;display:flex}.fx-pip{background:var(--grid);border-radius:50%;width:9px;height:9px}.fx-pip.done{background:var(--correct)}.fx-pip.now{background:var(--math);transform:scale(1.35)}.fx-fact{color:var(--ink);letter-spacing:.02em;font-family:IBM Plex Mono,monospace;font-size:2.6rem;font-weight:600}.fx-input{text-align:center;border:2px solid var(--grid);width:160px;min-height:62px;color:var(--ink);background:#fff;border-radius:12px;margin:20px auto 14px;padding:10px;font-family:IBM Plex Mono,monospace;font-size:2rem;display:block}.fx-input:focus{border-color:var(--math);outline:none}.fx-score{color:var(--math);margin:6px 0;font-family:IBM Plex Mono,monospace;font-size:3rem;font-weight:700}.fx-grid-wrap{margin-top:24px}.fx-grid-title{color:var(--ink-soft);text-transform:uppercase;letter-spacing:.06em;margin-bottom:8px;font-size:.8rem}.fx-grid{flex-direction:column;gap:3px;display:inline-flex}.fx-grid-row{gap:3px;display:flex}.fx-cell{background:var(--grid);border-radius:3px;width:16px;height:16px;display:inline-block}.fx-cell.seen{background:#f0a830}.fx-cell.owned{background:var(--correct)}.fx-legend{color:var(--ink-soft);flex-wrap:wrap;justify-content:center;align-items:center;gap:6px;margin-top:12px;font-size:.78rem;display:flex}@media (max-width:460px){.fx-cell{width:13px;height:13px}.fx-fact{font-size:2.1rem}}.typed-row{flex-wrap:wrap;align-items:center;gap:12px;margin-top:12px;display:flex}.typed-input{border:2px solid var(--grid);width:220px;max-width:100%;min-height:48px;color:var(--ink);background:#fff;border-radius:10px;padding:12px 14px;font-family:IBM Plex Mono,monospace;font-size:1.05rem}.typed-input:focus{border-color:var(--math);outline:none}.typed-input.correct{background:var(--correct-soft);border-color:var(--correct)}.typed-input.wrong{background:var(--wrong-soft);border-color:var(--wrong)}.typed-input:disabled{opacity:1}.typed-expected{color:var(--ink-soft);font-size:.9rem}.lesson-finish{color:var(--ink);margin-top:12px;font-weight:600}.lesson-reveal{margin-top:8px}.lesson-reveal summary{cursor:pointer;color:var(--math);font-size:.88rem;font-weight:600}.lesson-reveal p{margin-top:8px}.admin-compose{margin-top:12px}.admin-compose summary{color:var(--math);cursor:pointer;font-size:.85rem;font-weight:600}.admin-compose-subject,.admin-compose-body{border:1px solid var(--grid);width:100%;color:var(--ink);background:#fff;border-radius:8px;margin-top:8px;padding:9px 11px;font-family:inherit;font-size:.9rem}.admin-compose-body{resize:vertical;line-height:1.55}.admin-skills{background:var(--paper);border-radius:8px;margin-top:10px;padding:10px 12px}.admin-skills-head{color:var(--ink-soft);flex-wrap:wrap;align-items:center;gap:8px;margin-bottom:6px;font-size:.82rem;display:flex}.admin-skill-row{cursor:pointer;align-items:center;gap:8px;padding:2px 0;font-size:.85rem;display:flex}.admin-skill-n{color:var(--ink-soft);width:14px;font-family:IBM Plex Mono,monospace;font-size:.72rem}.stage-chip{background:var(--math-soft);color:var(--math);border-radius:6px;margin-top:6px;padding:3px 9px;font-family:IBM Plex Mono,monospace;font-size:.72rem;display:inline-block}.english .stage-chip,.stage-chip.english{background:var(--english-soft);color:var(--english)}.ai .stage-chip,.stage-chip.ai{background:var(--ai-soft);color:var(--ai)}.focus-row{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:12px;margin:14px 0 4px;display:flex}.qdots{flex-wrap:wrap;align-items:center;gap:7px;max-width:100%;display:flex}.qdot{background:var(--grid);cursor:pointer;border:none;border-radius:50%;width:16px;height:16px;padding:0;position:relative}.qdot:before{content:"";position:absolute;inset:-6px}.qdot.answered{background:var(--correct)}.qdot.current{box-shadow:0 0 0 2px var(--math)}.qprogress-label{color:var(--ink-soft);margin-left:6px;font-family:IBM Plex Mono,monospace;font-size:.72rem}.wiggle-note{color:var(--ink-soft);margin-top:14px;font-size:.9rem}.round-label{color:var(--ink);white-space:nowrap;margin-right:6px;font-family:Bricolage Grotesque,sans-serif;font-size:1.02rem;font-weight:800}.round-tip{background:var(--correct-soft);color:#1d5c27;border-radius:10px;max-width:62ch;margin:2px 0 16px;padding:10px 14px;font-size:.92rem;line-height:1.45}.next-row{margin-top:16px}.next-row .btn{min-height:48px;padding:12px 28px;font-size:1rem}.try-pick{max-width:640px}.try-field{border:none;min-width:0;margin-top:24px}.try-field legend{margin-bottom:10px;font-family:Bricolage Grotesque,sans-serif;font-size:1.05rem;font-weight:800}.try-chips{flex-wrap:wrap;gap:8px;display:flex}.try-subjects{grid-template-columns:1fr 1fr;gap:10px;max-width:420px;display:grid}.try-chip,.try-subject{cursor:pointer;position:relative}.try-chip input,.try-subject input{opacity:0;width:1px;height:1px;margin:0;position:absolute}.try-chip span{border:1.5px solid var(--grid);background:var(--card);min-height:44px;color:var(--ink);border-radius:99px;align-items:center;padding:9px 16px;font-size:.95rem;font-weight:600;display:inline-flex}.try-subject span{border:1.5px solid var(--grid);background:var(--card);min-height:56px;color:var(--ink);border-radius:12px;justify-content:center;align-items:center;padding:12px 16px;font-size:1.02rem;font-weight:700;display:flex}.try-chip:hover span,.try-subject:hover span{border-color:var(--ink)}.try-chip input:checked+span{background:var(--ink);border-color:var(--ink);color:#fff}.try-subject.math input:checked+span{background:var(--math);border-color:var(--math);color:#fff}.try-subject.english input:checked+span{background:var(--english);border-color:var(--english);color:#fff}.try-chip input:focus-visible+span,.try-subject input:focus-visible+span{outline:3px solid var(--math);outline-offset:2px}.try-pick .btn-row{margin-top:28px}.try-start{min-height:52px;padding:14px 36px;font-size:1.05rem}.try-page main:focus{outline:none}.try-skills{margin-top:14px;font-size:.95rem}.try-skills a{padding:10px 0;font-weight:600;display:inline-block}@media (max-width:520px){.try-start{width:100%}}.offers{margin-top:4px}.typed-input.nearly{background:#fdf7ec;border-color:#f0a830}.check-btn{min-height:48px;padding:11px 22px}.stop-card{background:var(--card);border-radius:var(--radius);box-shadow:var(--shadow);text-align:center;margin-top:22px;padding:36px 24px}.stop-card h2{font-size:1.7rem}.stop-card p{max-width:40ch;color:var(--ink-soft);margin:12px auto 0}.stop-card .btn-row{justify-content:center}.grownups{position:relative}.grownups>summary{cursor:pointer;-webkit-user-select:none;user-select:none;list-style:none}.grownups>summary::-webkit-details-marker{display:none}.grownups>summary:after{content:" ▾"}.grownups[open]>summary{background:var(--ink);color:#fff}.grownups>summary:focus-visible{outline:3px solid var(--math);outline-offset:2px}.grownups-panel{z-index:30;background:var(--card);border:1px solid var(--grid);border-radius:12px;gap:8px;min-width:250px;padding:12px;display:grid;position:absolute;top:calc(100% + 6px);right:0;box-shadow:0 8px 24px #17233b2e}.grownups-panel .btn{text-align:left;width:100%;min-height:44px}.print-only{display:none}.art-list{grid-template-columns:repeat(auto-fit,minmax(min(300px,100%),1fr));gap:18px;margin-top:26px;display:grid}.art-card{background:var(--card);border-radius:var(--radius);box-shadow:var(--shadow);color:var(--ink);flex-direction:column;padding:22px 24px;text-decoration:none;transition:transform .15s;display:flex}.art-card:hover{transform:translateY(-2px)}.art-card h2{margin-bottom:6px;font-size:1.15rem}.art-card p{color:var(--ink-soft);flex:auto;font-size:.94rem}.art-more{color:var(--math);margin-top:12px;font-size:.88rem;font-weight:600;display:inline-block}.article{max-width:680px;margin:0 auto;padding:10px 0 50px;font-size:1.0625rem}.article h1{font-size:2rem;line-height:1.2}.article h2{text-wrap:balance;margin-top:36px;font-size:1.35rem;line-height:1.25}.article h2+p,.article h2+ul{margin-top:10px}.article p{margin-top:14px;line-height:1.7}.article ul{margin:14px 0 0 20px}.article li{margin-top:9px;line-height:1.65}.art-meta{color:var(--ink-soft);margin-top:8px;font-family:IBM Plex Mono,monospace;font-size:.78rem}.art-callout{background:var(--math-soft);border-left:4px solid var(--math);border-radius:8px;padding:14px 16px}.art-cta{background:var(--card);border-radius:var(--radius);box-shadow:var(--shadow);text-align:center;margin-top:40px;padding:26px}.art-cta h2{margin-top:0}.art-cta p{color:var(--ink-soft);max-width:46ch;margin-left:auto;margin-right:auto}.art-cta .btn{margin-top:20px}.article .art-back,.art-back{margin-top:26px;font-size:.9rem}@media (max-width:560px){.article h1{font-size:1.55rem}}.danger-zone{margin-top:40px}.danger-zone summary{color:var(--ink-soft);cursor:pointer;font-size:.82rem}.btn.danger{color:var(--wrong);border-color:var(--wrong)}.btn.danger:hover{background:var(--wrong-soft)}.rhythm{background:var(--card);border-radius:var(--radius);box-shadow:var(--shadow);flex-wrap:wrap;align-items:center;gap:16px;margin:14px 0 6px;padding:12px 16px;display:flex}.rhythm-days{gap:8px;display:flex}.rhythm-day{flex-direction:column;align-items:center;gap:3px;display:flex}.rhythm-dot{background:var(--grid);color:#fff;border-radius:50%;justify-content:center;align-items:center;width:22px;height:22px;font-size:.68rem;display:flex}.rhythm-dot.done{background:var(--correct)}.rhythm-dot.today{box-shadow:0 0 0 2px var(--math)}.rhythm-label{color:var(--ink-soft);text-transform:uppercase;font-family:IBM Plex Mono,monospace;font-size:.6rem}.rhythm-msg{color:var(--ink-soft);font-size:.85rem}.mv-cap{fill:var(--ink-soft);font-family:IBM Plex Mono,monospace;font-size:11px}.mv-op{fill:var(--ink);font-size:20px;font-weight:700}.mv-tick{fill:var(--ink-soft);font-family:IBM Plex Mono,monospace;font-size:9px}.batch-row{border-bottom:1px solid var(--grid);cursor:pointer;align-items:center;gap:10px;padding:8px 0;font-size:.9rem;display:flex}.batch-row:last-of-type{border-bottom:none}.tutor-entry{margin-top:12px}@media print{.tutor-entry{box-shadow:none;page-break-inside:avoid;break-inside:avoid;border:none;border-bottom:1px solid #ccc;margin:0;padding:0}.tutor-entry .choice.selected:after{content:""}}.tutor-missed{margin:14px 0 0;padding:0;list-style:none}.tutor-missed li{break-inside:avoid;page-break-inside:avoid;margin-top:12px}.tutor-card{margin-top:14px}.tutor-signals{flex-wrap:wrap;gap:6px;margin-top:6px;display:flex}.sig{border:1px solid;border-radius:999px;padding:2px 9px;font-size:.75rem}.sig.urgent{color:#b0392f;background:#fdf1f0;border-color:#e2574c}.sig.warn{color:#8a6414;background:#fdf7ec;border-color:#f0a830}.sig.good{color:#1f6b2c;background:#eef7f0;border-color:#2e933c}.tutor-subject{flex-wrap:wrap;align-items:center;gap:10px;margin-top:8px;display:flex}.retention-row{flex-wrap:wrap;gap:22px;font-size:.95rem;display:flex}.retention-row b{font-size:1.4rem}.retention-child{border-top:1px solid var(--grid);flex-wrap:wrap;align-items:center;gap:10px;margin-top:8px;padding:8px 0;font-size:.88rem;display:flex}.tutor-row{border-bottom:1px solid var(--grid);flex-wrap:wrap;justify-content:space-between;align-items:center;gap:12px;padding:10px 0;display:flex}.tutor-invite{flex-wrap:wrap;gap:8px;margin-top:14px;display:flex}.tutor-invite input{border:1px solid var(--grid);background:var(--card);color:var(--ink);border-radius:8px;flex:160px;padding:8px 10px;font-size:.88rem}.print-controls{grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:12px;display:grid}.checkline{align-items:center;gap:8px;margin-top:12px;font-size:.88rem;display:flex}.print-sheet{background:var(--card);border-radius:var(--radius);box-shadow:var(--shadow);margin-top:18px;padding:20px 22px}.print-sheet .print-header{border-bottom:2px solid var(--ink);margin-bottom:12px;padding-bottom:8px;display:block}.print-lesson{border-left:3px solid var(--math);margin-bottom:14px;padding:6px 0 6px 12px}.print-lesson p{color:var(--ink-soft);margin-top:4px;font-size:.9rem}.print-sheet .q-block{border-bottom:1px solid var(--grid);padding:12px 0}.print-sheet .q-text{margin-bottom:8px}.print-sheet .choice{border:1px solid var(--grid);border-radius:8px;margin:4px 18px 4px 0;padding:3px 8px;display:inline-block}.print-answer-line{border-bottom:1.5px solid var(--ink);max-width:70mm;height:11mm;margin-top:6px}.key-block{margin-top:12px}.key-block ol{margin:4px 0 0;padding-left:22px;font-size:.9rem}@media print{.print-sheet{box-shadow:none;page-break-after:always;break-after:page;border:none;margin:0;padding:0}.print-sheet:last-child{page-break-after:auto;break-after:auto}.print-sheet .print-header{display:block}.print-key{page-break-before:always;break-before:page}}.toohard{background:var(--paper);border:1px solid var(--grid);border-left:3px solid var(--math);border-radius:10px;margin-top:18px;padding:14px 16px}.tooeasy{background:var(--paper);border:1px solid var(--grid);border-left:3px solid var(--correct);border-radius:10px;margin-top:18px;padding:14px 16px}.tooeasy b{font-size:.95rem}.tooeasy p{color:var(--ink-soft);max-width:64ch;margin-top:4px;font-size:.88rem}.slowdown{border:1px solid var(--grid);background:#fdf7ec;border-left:3px solid #f0a830;border-radius:10px;margin-top:18px;padding:14px 16px}.slowdown b{font-size:.95rem}.slowdown p{color:var(--ink-soft);max-width:64ch;margin-top:4px;font-size:.88rem}.toohard b{font-size:.95rem}.toohard p{color:var(--ink-soft);max-width:64ch;margin-top:4px;font-size:.88rem}.choice.nearly{color:var(--ink);background:#fdf7ec;border-color:#f0a830}.nearly-note{color:var(--ink);background:#fdf7ec;border-left:3px solid #f0a830;border-radius:9px;max-width:66ch;margin-top:8px;padding:9px 12px;font-size:.88rem}.nearly-note b{font-weight:700}.paper-banner{background:var(--paper);border:1px dashed var(--grid);border-left:3px solid #f0a830;border-radius:10px;flex-direction:column;gap:4px;margin:14px 0;padding:12px 14px;display:flex}.paper-banner span{color:var(--ink-soft);max-width:72ch;font-size:.85rem}.btn.active{background:var(--ink);color:#fff;border-color:var(--ink)}.q-hidden,.print-header{display:none}@media print{html,body{background:#fff!important}body{color:#000}.wrap{max-width:none;padding:0}.topbar,.btn,.btn-row,.no-print,.focus-row,.qdots,.help-row,.hint-btn,.report-open,.report-box,.report-done,.confetti,.rhythm,.lang-row,.chart-tip,.spinner{display:none!important}.print-header{border-bottom:2px solid #000;margin-bottom:14px;padding-bottom:8px;display:block}.print-only{display:inline}.print-title{font-size:12pt;font-weight:700}.print-meta{gap:24px;margin-top:6px;font-size:10pt;display:flex}.worksheet{box-shadow:none;background:#fff;border:none;margin:0 0 10px;padding:0}.q-block{page-break-inside:avoid;break-inside:avoid;background:#fff;border:none;border-bottom:1px solid #ccc;padding:10px 0}.q-hidden{display:block!important}.choices{display:block}.choice{width:auto;margin:4px 18px 4px 0;padding:2px 6px;display:inline-block;color:#000!important;box-shadow:none!important;background:#fff!important;border:1px solid #666!important}.choice.correct:after{content:" ✔";font-weight:700}.choice.wrong:after{content:" ✘";font-weight:700}.choice.selected:after{content:" ●"}.typed-input{min-width:60mm;height:11mm;color:#000!important;box-shadow:none!important;background:#fff!important;border:none!important;border-bottom:1.5px solid #000!important;border-radius:0!important}.typed-expected{margin-top:4px;display:block}.feedback-note,.hint-note,.help-note{page-break-inside:avoid;color:#000!important;background:#fff!important;border:1px solid #bbb!important}.lesson,.lesson-box{page-break-after:avoid}a[href]:after{content:""}}.curriculum{margin-top:12px}.curr-level{border-top:2px dashed var(--grid);padding:24px 0 10px}.curr-level:first-child{border-top:none;padding-top:18px}.curr-head{flex-wrap:wrap;align-items:baseline;gap:6px 10px;display:flex}.curr-head h3{flex-basis:100%;margin:0;font-size:1.1rem;line-height:1.3}.curr-grade{color:var(--ink);font-family:IBM Plex Mono,monospace;font-size:.8rem;font-weight:600}.curr-skills{margin:10px 0 0;padding-left:20px}.curr-skills li{margin:7px 0}.curr-skill-name{font-size:.92rem;font-weight:600}.curr-skill-focus{color:var(--ink-soft);max-width:70ch;font-size:.85rem;display:block}.curr-skills li::marker{color:var(--ink-soft);font-family:IBM Plex Mono,monospace;font-size:.78rem}.curr-jump{flex-wrap:wrap;gap:8px;margin-top:18px;display:flex}.curr-jump a{border-radius:99px;padding:9px 14px;font-family:IBM Plex Mono,monospace;font-size:.8rem;font-weight:600;text-decoration:none}.curr-jump .math{background:var(--math-soft);color:var(--math)}.curr-jump .english{background:var(--english-soft);color:var(--english)}.curr-jump .ai{background:var(--ai-soft);color:var(--ai)}.article h2.curr-subject{border-bottom:2px solid;margin-top:44px;padding-bottom:10px;scroll-margin-top:16px;font-size:clamp(1.45rem,4vw,1.7rem);line-height:1.2}.article h2.curr-subject.math{color:var(--math)}.article h2.curr-subject.english{color:var(--english)}.article h2.curr-subject.ai{color:var(--ai)}.curr-grades{margin-top:20px}.article .curr-grades-label{margin-top:0;font-weight:700;line-height:1.4}.article .curr-grade-list{flex-wrap:wrap;gap:8px;margin:10px 0 0;padding:0;list-style:none;display:flex}.article .curr-grade-list li{margin:0;line-height:1.2}.curr-grade-list a{border:1.5px solid var(--ink);background:var(--card);min-height:44px;color:var(--ink);white-space:nowrap;border-radius:99px;align-items:center;padding:8px 14px;font-family:IBM Plex Mono,monospace;font-size:.82rem;font-weight:600;text-decoration:none;display:inline-flex}.curr-grade-list a:hover{background:var(--grid)}.curr-grade-list a[aria-current=page]{background:var(--ink);color:#fff}.article .curr-grades-status{margin-top:12px;font-weight:600;line-height:1.5}.article .curr-grades-note{color:var(--ink-soft);margin-top:6px;font-size:.88rem;line-height:1.55}.report-open{cursor:pointer;color:var(--ink-soft);text-underline-offset:3px;background:0 0;border:none;margin-top:4px;padding:6px 0;font-size:.78rem;text-decoration:underline}.report-open:hover{color:var(--ink)}.report-box{border:1px dashed var(--grid);background:var(--paper);border-radius:10px;margin-top:10px;padding:12px 14px}.report-q{margin-bottom:8px;font-size:.82rem;font-weight:600}.report-reasons{flex-wrap:wrap;gap:6px;display:flex}.report-reason{cursor:pointer;border:1px solid var(--grid);background:var(--card);color:var(--ink);border-radius:999px;padding:6px 10px;font-size:.78rem}.report-reason:hover:not(:disabled){border-color:var(--math);color:var(--math)}.report-reason:disabled{opacity:.5;cursor:default}.report-note{border:1px solid var(--grid);background:var(--card);width:100%;color:var(--ink);border-radius:8px;margin-top:8px;padding:7px 10px;font-size:.82rem}.report-done{color:#1d5c27;margin-top:10px;font-size:.8rem}.practice-card{border-radius:var(--radius);background:var(--card);border:1px solid var(--grid);border-left:4px solid #f0a830;flex-wrap:wrap;justify-content:space-between;align-items:center;gap:16px;margin-top:18px;padding:14px 18px;text-decoration:none;transition:box-shadow .15s,transform .15s;display:flex}.practice-card:hover{box-shadow:var(--shadow);transform:translateY(-1px)}.pc-main{min-width:0}.pc-title{color:var(--ink);font-size:1rem;font-weight:700}.pc-sub{color:var(--ink-soft);max-width:60ch;margin-top:3px;font-size:.85rem}.pc-side{flex-wrap:wrap;align-items:center;gap:14px;display:flex}.pc-stat{color:var(--ink-soft);font-family:IBM Plex Mono,monospace;font-size:.72rem}.pc-go{color:var(--math);white-space:nowrap;font-size:.88rem;font-weight:600}@media (max-width:560px){.practice-card{align-items:flex-start}.pc-side{justify-content:space-between;width:100%}}.subject-grid{grid-template-columns:1fr 1fr;gap:16px;margin-top:22px;display:grid}@media (max-width:640px){.subject-grid{grid-template-columns:1fr}}.subject-card{background:var(--card);border-radius:var(--radius);box-shadow:var(--shadow);border:none;border-top:6px solid var(--ink);cursor:pointer;text-align:left;width:100%;font:inherit;color:inherit;padding:22px;transition:transform .15s,box-shadow .15s}.subject-card:hover,.subject-card:focus-visible{transform:translateY(-3px);box-shadow:0 6px 18px #17233b24}.subject-card:focus-visible{outline:3px solid var(--math);outline-offset:2px}.subject-card.math{border-top-color:var(--math)}.subject-card.english{border-top-color:var(--english)}.subject-card.ai{border-top-color:var(--ai)}.glyph{font-family:IBM Plex Mono,monospace;font-size:1.5rem;font-weight:600}.math .glyph{color:var(--math)}.english .glyph{color:var(--english)}.ai .glyph{color:var(--ai)}.level-line{color:var(--ink-soft);align-items:center;gap:8px;margin-top:12px;font-size:.85rem;display:flex}.lvl-badge{white-space:nowrap;border-radius:6px;padding:2px 8px;font-family:IBM Plex Mono,monospace;font-size:.8rem;font-weight:600}.subject-cta{align-items:center;gap:6px;margin-top:14px;font-size:.95rem;font-weight:700;display:inline-flex}.math .subject-cta{color:var(--math)}.english .subject-cta{color:var(--english)}.ai .subject-cta{color:var(--ai)}.subject-cta .arrow{transition:transform .15s}.subject-card:hover .subject-cta .arrow,.subject-card:focus-visible .subject-cta .arrow{transform:translate(3px)}.math .lvl-badge{background:var(--math-soft);color:var(--math)}.english .lvl-badge{background:var(--english-soft);color:var(--english)}.ai .lvl-badge{background:var(--ai-soft);color:var(--ai)}@media (max-width:640px){.subject-card{grid-template-columns:auto minmax(0,1fr);align-items:center;column-gap:12px;padding:16px 18px 18px;display:grid}.subject-card .glyph{font-size:1.1rem}.subject-card h2{font-size:1.2rem}.subject-card .level-line,.subject-card .subject-cta{grid-column:1/-1}.subject-card .level-line{align-items:flex-start;margin-top:10px}.subject-card .subject-cta{margin-top:12px}}.subject-card.enrolled .subject-cta{border-radius:10px;justify-content:center;align-items:center;min-height:44px;padding:10px 16px;display:flex}.subject-card.math.enrolled .subject-cta{background:var(--math);color:#fff}.subject-card.english.enrolled .subject-cta{background:var(--english);color:#fff}.subject-card.ai.enrolled .subject-cta{background:var(--ai);color:#fff}.subject-card.enrolled .subject-cta .spinner{border-color:#fff #fff6 #fff6}.firstrun{background:var(--card);border-radius:var(--radius);box-shadow:var(--shadow);border-top:6px solid var(--math);margin-top:18px;padding:24px}.firstrun h2{margin:0}.firstrun-sub{color:var(--ink-soft);margin:6px 0 18px;font-size:.92rem}.firstrun-steps{gap:14px;margin:0;padding:0;list-style:none;display:grid}.firstrun-steps li{border-left:3px solid #0000;align-items:flex-start;gap:14px;padding-left:12px;display:flex}.firstrun-steps li.now{border-left-color:var(--math)}.firstrun-n{background:var(--grid);width:28px;height:28px;color:var(--ink-soft);border-radius:50%;flex:none;place-items:center;font-family:IBM Plex Mono,monospace;font-size:.85rem;font-weight:700;display:grid}.firstrun-steps li.now .firstrun-n{background:var(--math);color:#fff}.firstrun-body{flex-direction:column;gap:3px;min-width:0;display:flex}.firstrun-body b{font-size:1rem}.firstrun-body>span{color:var(--ink-soft);max-width:62ch;font-size:.9rem}.firstrun-here{text-transform:uppercase;letter-spacing:.04em;color:var(--math);background:var(--math-soft);white-space:nowrap;border-radius:5px;margin-left:8px;padding:2px 7px;font-family:IBM Plex Mono,monospace;font-size:.7rem;font-weight:600}.firstrun-form{flex-wrap:wrap;margin-top:10px}.handback{font:inherit;border:1.5px solid var(--grid);background:var(--card);color:var(--ink-soft);cursor:pointer;touch-action:none;-webkit-user-select:none;user-select:none;border-radius:9px;padding:8px 14px;font-size:.86rem;font-weight:600;position:relative;overflow:hidden}.handback-fill{background:var(--math-soft);transition:width 50ms linear;position:absolute;inset:0 auto 0 0}.handback-label{position:relative}.worksheet{background:var(--card);box-shadow:var(--shadow);background-image:linear-gradient(90deg, transparent 44px, var(--margin-red) 44px, var(--margin-red) 46px, transparent 46px);border-radius:8px;margin-top:22px;padding:26px 26px 26px 64px;position:relative}.worksheet:before{content:"";background-image:radial-gradient(circle 7px at 10px 50%, var(--paper) 98%, transparent);background-position:0 30px;background-repeat:repeat-y;background-size:20px 90px;width:20px;position:absolute;top:0;bottom:0;left:12px}@media (max-width:520px){.worksheet{padding-left:48px}}.ws-head{border-bottom:1px dashed var(--grid);flex-wrap:wrap;justify-content:space-between;align-items:baseline;gap:10px;margin-bottom:18px;padding-bottom:12px;display:flex}.meta{color:var(--ink-soft);font-family:IBM Plex Mono,monospace;font-size:.78rem}.src-chip{background:var(--paper);border:1px solid var(--grid);color:var(--ink-soft);border-radius:99px;padding:2px 10px;font-family:IBM Plex Mono,monospace;font-size:.72rem}.q-block{margin-bottom:26px}.q-text{white-space:pre-wrap;font-size:1.08rem;font-weight:600;line-height:1.45}.q-num{color:var(--ink-soft);font-family:IBM Plex Mono,monospace;font-size:.85rem}.choices{gap:8px;margin-top:12px;display:grid}.choice{text-align:left;font:inherit;color:var(--ink);background:var(--paper);border:1.5px solid var(--grid);cursor:pointer;border-radius:10px;align-items:center;gap:12px;padding:11px 14px;font-size:.98rem;transition:border-color .12s,background .12s;display:flex}.choice-pic-wrap{align-items:center;gap:12px;display:flex}.choice-pic{font-size:2.1rem;line-height:1.1}.choice-word{color:var(--ink);font-size:.98rem}.choice:hover:not(:disabled){border-color:var(--ink)}.choice:focus-visible{outline:3px solid var(--math);outline-offset:2px}.choice.selected{border-color:var(--ink);box-shadow:inset 0 0 0 1px var(--ink);background:#fff}.choice.correct{background:var(--correct-soft);border-color:var(--correct)}.choice.wrong{background:var(--wrong-soft);border-color:var(--wrong)}.choice:disabled{cursor:default;opacity:.95}.choice.idk{color:var(--ink-soft);background:0 0;border-style:dashed;justify-content:center}.choice.idk.selected{border-style:solid;border-color:var(--ink-soft);box-shadow:inset 0 0 0 1px var(--ink-soft);color:var(--ink);background:#fff}.choice.idk.skipped{border-style:solid;border-color:var(--ink-soft);background:var(--paper)}.choice.selected.nearly{background:#fdf7ec;border-color:#f0a830;box-shadow:inset 0 0 0 1px #f0a830}.choice.selected.correct{box-shadow:inset 0 0 0 1px var(--correct)}.key{border:1px solid var(--grid);background:#fff;border-radius:6px;padding:1px 7px;font-family:IBM Plex Mono,monospace;font-size:.8rem;font-weight:600}.feedback-note{border-radius:10px;margin-top:10px;padding:11px 14px;font-size:.9rem}.feedback-note.good{background:var(--correct-soft);color:#1d5c27}.feedback-note.bad{background:var(--wrong-soft);color:#7b241a}.feedback-note.again{color:var(--ink);background:#fdf7ec;border-left:3px solid #f0a830}.feedback-note.calm{background:var(--paper);border-left:3px solid var(--ink-soft);color:var(--ink)}.choice.missed{border-color:var(--ink-soft);background:var(--paper);color:var(--ink)}.typed-input.missed{border-color:var(--ink-soft);background:var(--paper)}.result-second{color:var(--ink);background:#fdf7ec;border-left:3px solid #f0a830;border-radius:9px;width:fit-content;max-width:100%;margin-top:8px;padding:7px 12px;font-size:.95rem}.summary-box{background:var(--paper);border:1px dashed var(--grid);border-radius:10px;margin-top:4px;padding:16px;font-size:.95rem}.result-hero{font-family:Bricolage Grotesque,sans-serif;font-size:2.6rem;font-weight:800;line-height:1}.auth-card{background:var(--card);border-radius:var(--radius);box-shadow:var(--shadow);max-width:420px;margin:40px auto;padding:26px}.field{margin-top:14px}.field label{margin-bottom:5px;font-size:.82rem;font-weight:600;display:block}.field input{width:100%;font:inherit;color:var(--ink);background:var(--paper);border:1.5px solid #838da1;border-radius:10px;padding:10px 12px}.field input[aria-invalid=true]{border-color:var(--wrong)}.field input:focus-visible{outline:3px solid var(--math);outline-offset:1px}.error-note{background:var(--wrong-soft);color:#7b241a;border-radius:10px;margin-top:12px;padding:10px 14px;font-size:.88rem}.info-note{background:var(--math-soft);color:var(--math);border-radius:10px;margin-top:12px;padding:10px 14px;font-size:.88rem}.assignment-list{gap:8px;margin-top:20px;display:grid}.assignment-row{background:var(--card);box-shadow:var(--shadow);min-height:48px;color:var(--ink);border-left:4px solid var(--grid);border-radius:10px;justify-content:space-between;align-items:center;gap:10px;padding:12px 14px;text-decoration:none;display:flex}.assignment-row.math{border-left-color:var(--math)}.assignment-row.english{border-left-color:var(--english)}.assignment-row.ai{border-left-color:var(--ai)}.assignment-row>span:first-child{min-width:0;line-height:1.35}.assignment-row .muted{font-size:.85rem}.assignment-row:hover{box-shadow:0 4px 14px #17233b24}.score-chip{background:var(--paper);border:1px solid var(--grid);border-radius:8px;flex:none;padding:4px 9px;font-family:IBM Plex Mono,monospace;font-size:.85rem;font-weight:600}.assignment-row.open .score-chip{color:var(--ink-soft);background:0 0;border-style:dashed;font-weight:500}.spinner{border:2.5px solid var(--grid);border-top-color:var(--ink);vertical-align:-2px;border-radius:50%;width:15px;height:15px;margin-right:8px;animation:.8s linear infinite spin;display:inline-block}@keyframes spin{to{transform:rotate(360deg)}}@media (prefers-reduced-motion:reduce){.spinner{animation-duration:2s}.subject-card,.art-card,.practice-card,.subject-cta .arrow{transition:none}}.lp-wrap{max-width:1080px;margin:0 auto;padding:0 20px}.lp-banner{background:linear-gradient(180deg, #e9eff9 0%, var(--paper) 100%);border-bottom:1px solid var(--grid)}.lp-nav{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:12px;padding:18px 0;display:flex}@media (max-width:420px){.lp-nav{flex-wrap:nowrap;gap:6px;padding:14px 0}.lp-nav .logo{white-space:nowrap;text-overflow:ellipsis;flex:0 auto;min-width:0;font-size:1.05rem;overflow:hidden}.lp-nav .btn-row{flex-wrap:nowrap;flex:none;gap:6px}.lp-nav .btn.small{white-space:nowrap;padding:7px 10px;font-size:.82rem}.lp-nav .btn.small:lang(fr){padding:7px;font-size:.76rem}}@media (max-width:360px){.lp-nav .logo{font-size:.92rem}.lp-nav .btn.small{padding:6px 8px;font-size:.76rem}}.lp-hero{grid-template-columns:1.1fr .9fr;align-items:start;gap:40px;padding:40px 0 56px;display:grid}@media (min-width:861px){.lp-hero-copy{padding-top:28px}}.lp-eyebrow{color:var(--ink-soft);font-family:IBM Plex Mono,monospace;font-size:.8rem}.lp-hero h1{margin-top:14px;font-size:clamp(2rem,5.2vw,3.1rem)}.lp-lead{color:var(--ink-soft);max-width:52ch;margin-top:16px;font-size:1.1rem}.lp-cta-row{flex-wrap:wrap;gap:12px;margin-top:26px;display:flex}@media (max-width:520px){.lp-cta-row{flex-direction:column}.lp-cta-row .btn.lg{text-align:center;width:100%;padding-left:16px;padding-right:16px}}.btn.lg{border-radius:12px;padding:14px 26px;font-size:1.02rem}.lp-trustline{color:var(--ink-soft);margin-top:16px;font-family:IBM Plex Mono,monospace;font-size:.82rem}@media (max-width:860px){.lp-hero{grid-template-columns:1fr;gap:32px;padding:20px 0 36px}}.lp-demo{min-width:0}.lp-demo-stage{transition:opacity .45s}.lp-demo-stage[data-fading]{opacity:0}.lp-demo-stage[data-frame=asked] .play-bar [role=progressbar]>span{transition:none}.lp-demo-stage .worksheet{margin-top:0}.lp-demo-subject{letter-spacing:-.02em;font-family:Bricolage Grotesque,sans-serif;font-size:1.25rem;font-weight:800}.lp-demo-swap{display:grid}.lp-demo-swap>*{grid-area:1/1;min-width:0}.lp-demo-swap>.q-block{margin-bottom:0}.lp-demo-swap>section{align-self:start}.lp-demo-foot{justify-content:space-between;align-items:flex-start;gap:12px;margin-top:14px;display:flex}.lp-demo-caption{color:var(--ink-soft);max-width:52ch;font-size:.88rem;line-height:1.5}.lp-demo-toggle{border:1.5px solid var(--ink-soft);background:var(--card);min-width:44px;min-height:44px;font:inherit;color:var(--ink);cursor:pointer;border-radius:99px;flex:none;align-items:center;gap:6px;padding:8px 14px;font-size:.85rem;font-weight:600;display:inline-flex}.lp-demo-toggle:focus-visible{outline:3px solid var(--math);outline-offset:2px}@media (prefers-reduced-motion:reduce){.lp-demo-stage{transition:none}.lp-demo-toggle{display:none}}.lp-section{border-top:1px solid var(--grid);padding:46px 0}.lp-section>h2{font-size:clamp(1.4rem,3.6vw,2rem)}.lp-hero h1,.lp-section>h2,.lp-band h2,.lp-proof h3{text-wrap:balance}.lp-section-sub{color:var(--ink-soft);max-width:58ch;margin-top:8px}.lp-proofs{grid-template-columns:repeat(3,1fr);gap:16px;margin-top:24px;list-style:none;display:grid}.lp-proof{background:var(--card);border-radius:var(--radius);box-shadow:var(--shadow);border-top:6px solid var(--math);padding:20px}.lp-proof:nth-child(2){border-top-color:#f0a830}.lp-proof:nth-child(3){border-top-color:var(--correct)}.lp-proof h3{font-size:1.08rem;line-height:1.3}.lp-proof p{color:var(--ink-soft);margin-top:6px;font-size:.93rem}@media (max-width:760px){.lp-proofs{grid-template-columns:1fr;gap:12px}.lp-proof{padding:16px 18px}}.lp-trust{background:var(--card);border-radius:var(--radius);box-shadow:var(--shadow);grid-template-columns:1.2fr 1fr;align-items:start;gap:24px;margin-top:8px;padding:28px;display:grid}.lp-trust ul{gap:12px;list-style:none;display:grid}.lp-trust li{padding-left:26px;font-size:.95rem;position:relative}.lp-trust li:before{content:"✓";color:var(--correct);font-weight:700;position:absolute;left:0}@media (max-width:760px){.lp-trust{grid-template-columns:1fr}}.skillmap{background:var(--paper);border:1px dashed var(--grid);border-radius:10px;margin-top:16px;padding:14px 16px}.skillmap-head{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:10px;display:flex}.skillmap-title{font-size:.9rem;font-weight:700}.skillmap-legend{color:var(--ink-soft);align-items:center;gap:6px;font-family:IBM Plex Mono,monospace;font-size:.72rem;display:inline-flex}.skill-row{align-items:center;gap:10px;margin-top:9px;display:flex}.skill-dot{border-radius:50%;flex:none;width:10px;height:10px;display:inline-block}.skill-dot.mastered{background:var(--correct)}.skill-dot.developing{background:#f0a830}.skill-dot.focus{background:var(--wrong)}.skill-name{text-overflow:ellipsis;white-space:nowrap;flex:40%;min-width:0;font-size:.86rem;overflow:hidden}.skill-bar{border:1px solid var(--grid);background:#fff;border-radius:99px;flex:40%;height:8px;overflow:hidden}.skill-bar span{background:var(--math);border-radius:99px;height:100%;display:block}.skill-count{color:var(--ink-soft);text-align:right;width:38px;font-family:IBM Plex Mono,monospace;font-size:.75rem}.skillmap-legend{flex-wrap:wrap;gap:4px 12px}.skillmap-legend .skill-dot{margin-left:0}.skill-legend-item{white-space:nowrap;align-items:center;gap:6px;display:inline-flex}.fluency{background:var(--paper);border:1px dashed var(--grid);border-radius:10px;margin-top:14px;padding:14px 16px}.fluency-head{flex-wrap:wrap;justify-content:space-between;align-items:baseline;gap:10px;display:flex}.fluency-title{font-size:.9rem;font-weight:700}.fluency-sub{color:var(--ink-soft);font-size:.78rem}.fluency-row{align-items:center;gap:10px;margin-top:9px;display:flex}.fluency-name{text-overflow:ellipsis;white-space:nowrap;flex:40%;min-width:0;font-size:.86rem;overflow:hidden}.fluency-num{color:var(--ink-soft);text-align:right;width:62px;font-family:IBM Plex Mono,monospace;font-size:.75rem}.fluency-note{color:var(--ink-soft);max-width:68ch;margin-top:10px;font-size:.85rem}.fluency-grid-wrap{margin-top:14px}.fluency-grid-title{color:var(--ink-soft);text-transform:uppercase;letter-spacing:.06em;margin-bottom:8px;font-size:.72rem}.factgrid{flex-direction:column;gap:3px;display:inline-flex}.factgrid-row{align-items:center;gap:3px;display:flex}.factgrid-axis{width:16px;color:var(--ink-soft);text-align:center;font-family:IBM Plex Mono,monospace;font-size:.62rem}.fluency .fx-legend{justify-content:flex-start;margin-top:10px}@media (max-width:460px){.factgrid-axis{width:13px;font-size:.56rem}}@media (max-width:560px){.skillmap,.fluency{padding:12px}.skillmap-head{flex-direction:column;align-items:flex-start;gap:6px}.skill-row,.fluency-row{gap:8px;margin-top:10px}.skill-name,.fluency-name{white-space:normal;text-overflow:clip;flex:auto;font-size:.84rem;line-height:1.25;overflow:visible}.skill-bar{flex:0 0 64px}.skill-count{width:34px}.fluency-num{width:56px}}.pattern-tonight{background:var(--paper);border-left:3px solid var(--correct);color:var(--ink);border-radius:9px;max-width:68ch;margin-top:8px;padding:9px 12px;font-size:.86rem}.pattern-tonight b{font-weight:700}.patterns{background:var(--card);border:1px solid var(--grid);border-left:3px solid #f0a830;border-radius:10px;margin-top:14px;padding:14px 16px}.patterns-head{flex-wrap:wrap;justify-content:space-between;align-items:baseline;gap:10px;display:flex}.patterns-title{font-size:.9rem;font-weight:700}.patterns-sub{color:var(--ink-soft);font-size:.78rem}.pattern-row{margin-top:12px}.pattern-row+.pattern-row{border-top:1px dashed var(--grid);padding-top:12px}.pattern-name{flex-wrap:wrap;align-items:baseline;gap:8px;font-size:.88rem;font-weight:600;display:flex}.pattern-count{color:var(--ink-soft);font-family:IBM Plex Mono,monospace;font-size:.72rem;font-weight:400}.pattern-note{color:var(--ink-soft);max-width:68ch;margin-top:4px;font-size:.85rem}.lp-band{text-align:center;background:var(--ink);color:#fff;border-radius:var(--radius);margin:46px 0;padding:44px 24px}.lp-band h2{color:#fff;font-size:clamp(1.5rem,4vw,2.1rem)}.lp-band p{color:#c7cdda;margin-top:8px}.lp-band .btn.lg{color:var(--ink);background:#fff;margin-top:22px}.lp-footer{border-top:1px solid var(--grid);color:var(--ink-soft);flex-wrap:wrap;justify-content:space-between;align-items:center;gap:12px;padding:26px 0 48px;font-size:.85rem;display:flex}@media (min-width:761px){.lp-footer:has(>p){grid-template-columns:minmax(0,1fr) minmax(0,52ch);grid-template-areas:"logo about""links about";align-items:start;gap:14px 40px;display:grid}.lp-footer:has(>p)>.logo{grid-area:logo}.lp-footer:has(>p)>p{grid-area:about}.lp-footer:has(>p)>span:last-child{grid-area:links}}.consent{color:var(--ink-soft);cursor:pointer;align-items:flex-start;gap:10px;margin-top:16px;font-size:.87rem;display:flex}.consent input{width:20px;height:20px;accent-color:var(--math);cursor:pointer;flex:none;margin-top:1px}.auth-links{text-align:center;margin-top:16px;font-size:.88rem}.linklike{cursor:pointer;font:inherit;color:var(--math);text-underline-offset:2px;background:0 0;border:0;padding:0;text-decoration:underline}.linklike:focus-visible{outline:3px solid var(--math);outline-offset:2px;border-radius:4px}.auth-card .btn-row .btn{text-align:center;flex:auto}.legal{max-width:680px}.legal h1{margin-top:8px}.legal h2{margin-top:34px;font-size:1.1rem}.legal p{margin-top:10px;line-height:1.7}.legal li{line-height:1.7}.legal ul{gap:6px;margin:10px 0 0 22px;display:grid}.legal .meta{margin-top:6px}.legal-foot{border-top:1px solid var(--grid);color:var(--ink-soft);margin-top:36px;padding-top:16px}.lesson{background:var(--card);border-radius:var(--radius);box-shadow:var(--shadow);border-left:6px solid var(--math);margin-top:22px;padding:24px}.lesson.english{border-left-color:var(--english)}.lesson.ai{border-left-color:var(--ai)}.lesson-tag{background:var(--math-soft);color:var(--math);border-radius:99px;padding:3px 10px;font-family:IBM Plex Mono,monospace;font-size:.72rem;font-weight:600}.lesson.english .lesson-tag{background:var(--english-soft);color:var(--english)}.lesson.ai .lesson-tag{background:var(--ai-soft);color:var(--ai)}.lesson h2{margin-top:10px}.lesson>p{max-width:62ch;margin-top:10px}.lesson-example{background:var(--paper);border:1px dashed var(--grid);border-radius:10px;margin-top:16px;padding:16px 18px}.lesson-example-label{color:var(--ink-soft);font-family:IBM Plex Mono,monospace;font-size:.72rem;font-weight:600}.lesson-example .q-text{margin-top:8px}.lesson-example ol{gap:6px;margin:10px 0 0 22px;font-size:.95rem;display:grid}.lesson-answer{margin-top:12px;font-weight:700}.lesson-realworld{background:var(--correct-soft);color:#1d5c27;border-radius:10px;max-width:none;margin-top:12px;padding:11px 14px;font-size:.92rem}.interest-grid{flex-wrap:wrap;gap:8px;display:flex}.interest-chip{font:inherit;cursor:pointer;background:var(--paper);border:1.5px solid var(--grid);color:var(--ink);border-radius:99px;padding:7px 14px;font-size:.85rem}.interest-chip:hover{border-color:var(--ink)}.interest-chip.selected{background:var(--ink);color:#fff;border-color:var(--ink)}.interest-chip:focus-visible{outline:3px solid var(--math);outline-offset:2px}.child-chip.loves{border-style:dashed}.loves-card{background:var(--paper);border:1px dashed var(--grid);border-radius:12px;margin-top:14px;padding:14px 12px}.loves-card h3{margin:0;font-size:1.1rem}.loves-why{margin:2px 0 10px}.loves-hint{color:var(--ink-soft);margin:8px 0 0;font-size:.85rem}.interest-tiles{grid-template-columns:repeat(3,minmax(0,1fr));gap:6px;display:grid}.interest-tile{font:inherit;color:var(--ink);cursor:pointer;text-align:center;background:var(--card);overflow-wrap:anywhere;border:1.5px solid #838da1;border-radius:12px;flex-direction:column;justify-content:center;align-items:center;gap:3px;min-height:64px;padding:6px 4px;font-size:.78rem;line-height:1.2;display:flex}.interest-tile .tile-emoji{font-size:1.45rem;line-height:1}.interest-tile:hover{border-color:var(--ink)}.interest-tile.selected{background:var(--ink);color:#fff;border-color:var(--ink)}.interest-tile:focus-visible{outline:3px solid var(--math);outline-offset:2px}.result-card .bonus-go{z-index:1;background:var(--card);margin-top:14px;padding:10px 0;position:sticky;bottom:0}.interest-editor{background:var(--card);border-radius:var(--radius);box-shadow:var(--shadow);margin-bottom:16px;padding:16px 18px}.help-row{justify-items:start;gap:8px;margin-top:10px;display:grid}.hint-btn{font:inherit;color:var(--math);border:1.5px dashed var(--math);cursor:pointer;background:0 0;border-radius:99px;padding:6px 14px;font-size:.85rem;font-weight:600}.hint-btn:hover{background:var(--math-soft)}.hint-btn:focus-visible{outline:3px solid var(--math);outline-offset:2px}.hint-note{color:#7a5d00;background:#fff8e1;border-radius:10px;width:100%;padding:10px 14px;font-size:.9rem}.help-note{background:var(--math-soft);color:var(--ink);white-space:pre-wrap;border-radius:10px;width:100%;padding:12px 14px;font-size:.92rem}.stat-row{grid-template-columns:repeat(3,1fr);gap:14px;margin-top:22px;display:grid}.stat-tile{background:var(--card);border-radius:var(--radius);box-shadow:var(--shadow);padding:18px 20px}.stat-num{font-family:Bricolage Grotesque,sans-serif;font-size:2rem;font-weight:800;line-height:1.1}.stat-label{color:var(--ink-soft);margin-top:4px;font-family:IBM Plex Mono,monospace;font-size:.75rem}@media (max-width:560px){.stat-row{grid-template-columns:repeat(3,minmax(0,1fr));gap:8px;margin-top:18px}.stat-tile{padding:12px 10px 11px}.stat-num{font-size:1.6rem}.stat-label{overflow-wrap:anywhere;margin-top:3px;font-size:.68rem;line-height:1.3}}.progress-card{background:var(--card);border-radius:var(--radius);box-shadow:var(--shadow);border-top:6px solid var(--math);margin-top:20px;padding:22px 24px}.progress-card.english{border-top-color:var(--english)}.progress-card.ai{border-top-color:var(--ai)}.progress-head{flex-wrap:wrap;justify-content:space-between;align-items:flex-start;gap:14px;display:flex}.progress-mini{text-align:right;color:var(--ink-soft);gap:4px;font-family:IBM Plex Mono,monospace;font-size:.78rem;display:grid}@media (max-width:560px){.progress-mini{text-align:left}}.progress-card.math .lvl-badge{background:var(--math-soft);color:var(--math)}.progress-card.english .lvl-badge{background:var(--english-soft);color:var(--english)}.progress-card.ai .lvl-badge{background:var(--ai-soft);color:var(--ai)}.progress-empty{background:var(--card);border-radius:var(--radius);box-shadow:var(--shadow);border-left:6px solid var(--math);margin-top:20px;padding:20px 22px}.progress-empty p{max-width:52ch;color:var(--ink);line-height:1.6}.progress-empty a{font-weight:600}.chart-wrap{margin-top:16px;position:relative}.chart{width:100%;height:auto;display:block}.chart-tick{fill:var(--ink-soft);font-family:IBM Plex Mono,monospace;font-size:10px}.chart-last{fill:var(--ink);font-family:IBM Plex Mono,monospace;font-size:12px;font-weight:600}@media (max-width:560px){.chart-tick{font-size:11px}.chart-last{font-size:13px}}.chart-tip{background:var(--ink);color:#fff;white-space:nowrap;pointer-events:none;box-shadow:var(--shadow);border-radius:8px;padding:5px 10px;font-family:IBM Plex Mono,monospace;font-size:.75rem;position:absolute;transform:translate(-50%,-140%)}.skill-chips{flex-wrap:wrap;align-items:center;gap:8px;margin-top:14px;display:flex}.skill-chips-label{color:var(--ink-soft);font-size:.82rem;font-weight:600}.skill-chip{background:var(--paper);border:1px solid var(--grid);color:var(--ink);border-radius:99px;padding:3px 10px;font-family:IBM Plex Mono,monospace;font-size:.75rem}.history{margin-top:14px}.history summary{cursor:pointer;color:var(--ink-soft);font-size:.85rem;font-weight:600}.history-table{border-collapse:collapse;width:100%;margin-top:10px;font-size:.88rem}.history-table th{text-align:left;color:var(--ink-soft);border-bottom:1px solid var(--grid);padding:6px 8px;font-family:IBM Plex Mono,monospace;font-size:.72rem;font-weight:600}.history-table td{border-bottom:1px solid var(--grid);padding:7px 8px}.streak-chip{vertical-align:middle;color:#8a5a00;background:#fff3d6;border-radius:99px;margin-left:14px;padding:5px 12px;font-family:IBM Plex Mono,monospace;font-size:.78rem;font-weight:600;display:inline-block}@media (max-width:560px){.streak-chip{width:fit-content;margin:8px 0 0;display:block}.dash-sub{margin-top:6px;font-size:.92rem;line-height:1.5}}.intake-card{background:var(--card);border-radius:var(--radius);box-shadow:var(--shadow);border-left:6px solid var(--ink);margin-top:22px;padding:24px}.intake-card.math{border-left-color:var(--math)}.intake-card.english{border-left-color:var(--english)}.intake-card.ai{border-left-color:var(--ai)}.intake-card.english .lesson-tag{background:var(--english-soft);color:var(--english)}.intake-card.ai .lesson-tag{background:var(--ai-soft);color:var(--ai)}@media (max-width:560px){.intake-card{padding:20px 18px}.intake-card .btn-row .btn{text-align:center;flex:100%}.intake-card .btn-row .btn[type=submit]{min-height:48px}}.checkin-language-line{margin:0;font-size:.92rem;line-height:1.5}.checkin-language-line .linklike{margin:-12px -6px;padding:12px 6px}.field select{width:100%;font:inherit;color:var(--ink);background:var(--paper);cursor:pointer;border:1.5px solid #838da1;border-radius:10px;padding:10px 12px}.field select:focus-visible{outline:3px solid var(--math);outline-offset:1px}.intake-options{gap:8px;display:grid}.intake-option{cursor:pointer;background:var(--paper);border:1.5px solid var(--grid);border-radius:10px;align-items:center;gap:10px;padding:11px 14px;font-size:.95rem;display:flex}.intake-option:hover{border-color:var(--ink)}.intake-option.selected{border-color:var(--ink);box-shadow:inset 0 0 0 1px var(--ink);background:#fff}.intake-option input{accent-color:var(--math);flex:none;width:16px;height:16px}.child-chips{flex-wrap:wrap;align-items:center;gap:8px;margin-bottom:16px;display:flex}.child-chip{font:inherit;cursor:pointer;background:var(--card);color:var(--ink);border:1.5px solid var(--grid);border-radius:99px;padding:7px 16px;font-size:.88rem;font-weight:600;transition:border-color .12s}.child-chip:hover{border-color:var(--ink)}.child-chip.active{background:var(--ink);color:#fff;border-color:var(--ink)}.child-chip.add{color:var(--ink-soft);background:0 0;border-style:dashed}.child-chip:focus-visible{outline:3px solid var(--math);outline-offset:2px}.child-add{align-items:center;gap:8px;display:flex}.child-add input{font:inherit;border:1.5px solid var(--grid);background:var(--card);border-radius:99px;width:180px;padding:7px 12px;font-size:.88rem}.child-add input:focus-visible{outline:3px solid var(--math);outline-offset:1px}.lang-row{color:var(--ink-soft);align-items:center;gap:8px;margin-left:6px;font-size:.82rem;display:inline-flex}.lang-row select{font:inherit;border:1.5px solid var(--grid);background:var(--card);cursor:pointer;border-radius:99px;padding:5px 10px;font-size:.82rem}.child-settings{background:var(--card);border:1px dashed var(--grid);border-radius:10px;flex-wrap:wrap;align-items:center;gap:8px 14px;margin:-6px 0 18px;padding:10px 12px;display:flex}.child-settings .lang-row{margin-left:0}.child-settings .child-chip.loves{border-style:solid;border-color:var(--grid);background:var(--paper);padding:6px 12px;font-size:.82rem;font-weight:500}@media (max-width:560px){.child-settings{gap:8px 10px}.child-settings .lang-row{gap:6px;font-size:.78rem}.child-settings .lang-row select{max-width:190px;min-height:36px;padding:6px 8px;font-size:.8rem}}.confetti{pointer-events:none;z-index:999;position:fixed;inset:0;overflow:hidden}.confetti span{opacity:.95;border-radius:2px;width:10px;height:14px;animation:linear forwards confetti-fall;position:absolute;top:-14px}@keyframes confetti-fall{0%{transform:translateY(-10vh)rotate(0)}to{opacity:.7;transform:translateY(110vh)rotate(720deg)}}@media (prefers-reduced-motion:reduce){.confetti{display:none}}.badge-toast{background:#fff8e1;border:1.5px solid #f0c948;border-radius:12px;margin-top:14px;padding:14px 16px}.badge-toast-title{font-family:Bricolage Grotesque,sans-serif;font-weight:800}.badge-row{align-items:center;gap:10px;margin-top:8px;font-size:.92rem;display:flex}.badge-emoji{font-size:1.4rem}.badge-shelf{margin-top:26px}.badge-grid{flex-wrap:wrap;gap:12px;margin-top:12px;display:flex}.badge-card{background:var(--card);box-shadow:var(--shadow);text-align:center;border-radius:12px;min-width:108px;padding:14px 18px}.badge-card-emoji{font-size:1.8rem}.badge-card-name{color:var(--ink-soft);margin-top:6px;font-size:.78rem;font-weight:600}.path{flex-wrap:wrap;gap:6px;margin-top:14px;display:flex}.path-step{background:var(--paper);border:1.5px solid var(--grid);width:34px;height:34px;color:var(--ink-soft);border-radius:50%;justify-content:center;align-items:center;font-family:IBM Plex Mono,monospace;font-size:.82rem;font-weight:600;display:inline-flex}.path-step.done{background:var(--math-soft);border-color:var(--math);color:var(--math)}.progress-card.english .path-step.done{background:var(--english-soft);border-color:var(--english);color:var(--english)}.progress-card.ai .path-step.done{background:var(--ai-soft);border-color:var(--ai);color:var(--ai)}.path-step.current{background:var(--ink);border-color:var(--ink);color:#fff;transform:scale(1.12)}@media (max-width:560px){.progress-card{padding:20px 18px}.path{grid-template-columns:repeat(10,minmax(0,1fr));gap:4px;display:grid}.path-step{aspect-ratio:1;width:auto;height:auto;font-size:.72rem}.path-step.current{transform:scale(1.1)}}.certificate{border:3px solid var(--math);max-width:640px;box-shadow:var(--shadow);background:#fffdf5;border-radius:6px;margin:26px auto 18px;padding:10px}.certificate.english{border-color:var(--english)}.certificate.ai{border-color:var(--ai)}.cert-inner{border:1.5px dashed var(--grid);text-align:center;border-radius:4px;padding:38px 30px}.cert-brand{color:var(--ink);font-family:Bricolage Grotesque,sans-serif;font-size:1.1rem;font-weight:800}.cert-title{color:var(--ink);margin-top:16px;font-family:Bricolage Grotesque,sans-serif;font-size:2rem;font-weight:800}.cert-presented{color:var(--ink-soft);margin-top:18px;font-family:IBM Plex Mono,monospace;font-size:.8rem}.cert-name{color:var(--math);margin-top:6px;font-family:Bricolage Grotesque,sans-serif;font-size:2.4rem;font-weight:800}.certificate.english .cert-name{color:var(--english)}.certificate.ai .cert-name{color:var(--ai)}.cert-for{color:var(--ink);margin-top:18px;font-size:1.05rem;line-height:1.6}.cert-skill{color:var(--ink-soft);font-style:italic}.cert-date{color:var(--ink-soft);margin-top:20px;font-family:IBM Plex Mono,monospace;font-size:.85rem}.cert-seal{margin-top:10px;font-size:2.4rem}@media print{.no-print,.topbar{display:none!important}body{background:#fff!important}.certificate{box-shadow:none;margin:0 auto}}.visual-box{border:1px dashed var(--grid);background:#fff;border-radius:10px;margin-top:12px;padding:12px 14px}.lesson-example .visual-box{background:var(--card)}.mv{width:100%;height:auto;display:block}.mv-area,.mv-clock{margin:0 auto}@media (max-width:520px){.lesson{padding:18px 14px}.lesson-example{margin-left:-6px;margin-right:-6px;padding:14px 10px}.visual-box{padding:8px 4px}.lesson-example .visual-box{margin-left:-8px;margin-right:-8px}.q-block .visual-box{margin-right:-12px}}.mv-zoom-btn{display:none}@media (max-width:520px){.mv-zoom-btn{min-height:36px;font:inherit;color:var(--ink);background:var(--paper);border:1.5px solid var(--grid);cursor:pointer;border-radius:99px;align-items:center;gap:6px;margin-top:8px;padding:6px 14px;font-size:.85rem;font-weight:600;display:inline-flex}}.mv-zoom{z-index:1000;background:var(--card);position:fixed;inset:0}.mv-zoom-bar{z-index:1;align-items:center;gap:12px;padding:12px 16px;display:flex;position:absolute;top:0;left:0;right:0}.mv-zoom-turn{color:var(--ink-soft);font-size:.85rem}.mv-zoom-close{min-height:44px;font:inherit;color:var(--ink);background:var(--card);border:1.5px solid var(--ink);cursor:pointer;border-radius:99px;margin-left:auto;padding:8px 18px;font-weight:700}.mv-zoom-frame{width:min(calc(100vw - 32px), calc((100vh - 140px) * var(--ratio)));width:min(calc(100vw - 32px), calc((100dvh - 140px) * var(--ratio)));position:absolute;top:50%;left:50%;transform:translate(-50%,-50%)}.mv-zoom-frame .mv{max-width:none!important}@media (orientation:portrait){.mv-zoom-frame.wide{width:min(calc(100vh - 140px), calc((100vw - 32px) * var(--ratio)));width:min(calc(100dvh - 140px), calc((100vw - 32px) * var(--ratio)));transform:translate(-50%,-50%)rotate(90deg)}}@media (orientation:landscape){.mv-zoom-turn{display:none}}@media print{.mv-zoom-btn,.mv-zoom{display:none!important}}.stuck-note{border-left:4px solid var(--math);color:var(--ink);padding:14px 16px}.stuck-note strong{color:var(--math);font-size:.95rem;display:block}.stuck-note ul{font-size:.95rem}.stuck-note p{color:var(--ink-soft);font-size:.88rem}@media screen{.sheet-page .lesson h2{margin-top:12px;font-size:1.45rem;line-height:1.2}.sheet-page .lesson>p{margin-top:12px;font-size:1.02rem;line-height:1.65}.sheet-page .lesson-realworld{font-size:.95rem;line-height:1.55}.sheet-page .lesson-example ol{gap:8px;font-size:1rem;line-height:1.55}.sheet-page .lesson-answer{font-size:1.05rem}.sheet-page .lesson-reveal summary{padding:11px 0;font-size:.95rem}.sheet-page .worksheet .q-block+.q-block{border-top:1px dashed var(--grid);padding-top:24px}.sheet-page .worksheet .q-hidden+.q-block{border-top:none;padding-top:0}.sheet-page .q-num{color:var(--ink);font-size:.9rem;font-weight:700}.sheet-page .q-text{font-size:1.1rem;line-height:1.45}.sheet-page .choices{gap:10px;margin-top:14px}.sheet-page .report-open{margin-top:8px}.sheet-page .choice{align-items:baseline;min-height:52px;padding:12px 14px;font-size:1.05rem;line-height:1.4}.sheet-page .choice:has(.choice-pic-wrap){align-items:center}.sheet-page .choice .key{text-align:center;flex:none;min-width:28px;padding:3px 0;font-size:.85rem}.sheet-page .typed-input{width:240px;min-height:56px;font-size:1.3rem}.sheet-page .typed-expected{font-size:.95rem}.sheet-page .nearly-note{margin-top:10px;padding:11px 14px;font-size:.95rem;line-height:1.5}.sheet-page .help-row{gap:10px;margin-top:12px}.sheet-page .hint-btn{min-height:44px;padding:10px 18px;font-size:.92rem}.sheet-page .qdots{gap:10px}.sheet-page .qdot{width:18px;height:18px}.sheet-page .qdot:before{inset:-5px}.sheet-page .worksheet>.q-block~.btn-row{border-top:1px dashed var(--grid);margin-top:28px;padding-top:24px}.sheet-page .result-hero{letter-spacing:-.03em;font-variant-numeric:tabular-nums;margin-top:8px;font-size:3rem}.sheet-page .result-card .result-hero~.feedback-note{border-radius:12px;padding:14px 16px;font-size:1.02rem;line-height:1.5}.sheet-page .result-card .result-hero~.feedback-note.good{border-left:4px solid var(--correct)}.sheet-page .result-card .result-hero~.feedback-note.bad{border-left:4px solid var(--wrong)}.sheet-page .result-card .summary-box{padding:16px;font-size:.98rem;line-height:1.6}.sheet-page .result-card .wiggle-note{margin-top:16px}}@media screen and (max-width:520px){.sheet-page .worksheet>.btn-row,.sheet-page .result-card .btn-row,.sheet-page .toohard .btn-row,.sheet-page .tooeasy .btn-row,.sheet-page .slowdown .btn-row{flex-direction:column;align-items:stretch}.sheet-page .worksheet>.btn-row>.btn,.sheet-page .result-card .btn-row .btn,.sheet-page .toohard .btn,.sheet-page .tooeasy .btn,.sheet-page .slowdown .btn{text-align:center;border-radius:12px;width:100%;padding:15px 20px;font-size:1.05rem}.sheet-page .mv-zoom-btn{min-height:44px;padding:9px 16px;font-size:.9rem}.sheet-page .next-row .btn{border-radius:12px;width:100%;padding:15px 20px;font-size:1.05rem}.sheet-page .typed-row .check-btn{border-radius:12px;flex:100%;min-height:52px;font-size:1.05rem}}@media (max-width:560px){.sheet-page .topbar{position:relative}.sheet-page .grownups{position:static}.sheet-page .grownups-panel{min-width:0;left:0;right:0}}.q-head{align-items:flex-start;gap:10px;display:flex}.q-head .q-text{flex:1;min-width:0}.choice-row{align-items:stretch;gap:8px;display:flex}.choice-row>.choice{flex:1;min-width:0}.choice-row>.speaker{align-self:center}.lesson-head{justify-content:space-between;align-items:center;gap:10px;display:flex}.note-with-speaker{align-items:center;gap:10px;display:flex}.note-with-speaker .note-words{flex:1;min-width:0}.ws-side{flex-wrap:wrap;justify-content:flex-end;align-items:center;gap:8px;display:flex}@media print{.q-head,.lesson-head,.note-with-speaker{display:block}.choice-row{display:inline}}