:root{--ink:#182f32;--muted:#52686a;--accent:#14655b;--accent-dark:#104b45;--paper:#fff;--canvas:#f6f5ef;--line:#d8dfd8;--wash:#eaf3ee;--gold:#f1c86e;--rose:#f4dfd5;--measure:720px;font-family:system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;color:var(--ink);background:var(--canvas);font-size:16px;color-scheme:light}
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a{overflow-wrap:anywhere}.data-table{border-collapse:collapse;width:100%;font-size:.94rem;margin:16px 0}.data-table caption{font-size:.85rem;text-align:left;color:var(--muted);margin-bottom:10px}.data-table th,.data-table td{text-align:left;padding:12px;border-bottom:1px solid var(--line)}.data-table thead{background:var(--wash)}.notice{border:1px solid var(--line);border-left:3px solid var(--accent);padding:14px 18px;background:white;line-height:1.6;font-size:.88rem;margin:18px 0}.support{background:#f1eee4;border-radius:8px;padding:18px}.modes{display:flex;gap:8px;flex-wrap:wrap;margin:20px 0}.modes button[aria-pressed=true]{background:var(--ink);color:white;border-color:var(--ink)}.progress-summary{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin:24px 0}.metric{padding:18px;background:white;border:1px solid var(--line);border-radius:8px}.metric b{font-size:1.8rem;display:block}.metric 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h2{font-size:1.35rem;margin-top:32px}.family{--canvas:#f2f5ed;--wash:#e6efdf;--accent:#3d6650;--accent-dark:#294b36}.family .brand-mark{background:#3d6650}.family .feature-art{background:#e5edd6}.next-step{border-top:1px solid var(--line);margin-top:28px;padding-top:18px}.fraction{font-size:1.65rem;font-weight:650;padding:18px;background:var(--wash);text-align:center;border-radius:8px}.print-only{display:none}.muted{color:var(--muted)}.checklist{padding-left:20px}.checklist li{padding:5px 0}
@media(max-width:1000px){.head{gap:14px;flex-wrap:wrap;padding:16px 0}.nav{gap:14px}.nav a{font-size:.84rem}.reading-layout{grid-template-columns:minmax(0,1fr) 170px;gap:26px}.feature-copy{padding:26px}}
@media(max-width:760px){.shell{width:calc(100% - 32px)}.head{min-height:70px}.brand{font-size:1.04rem}.brand-mark{width:34px;height:34px;font-size:21px}.menu-toggle{display:inline-flex}.nav{width:100%;margin:0;gap:8px 20px}.js .nav{display:none}.js .nav.is-open{display:flex}.nav a{min-height:44px}.intro{padding:24px 0 10px}.feature{grid-template-columns:1fr}.feature-copy{padding:22px}.feature h1{font-size:2.05rem;line-height:1.12}.feature .actions{margin-bottom:6px}.feature-art{padding:12px 20px}.feature-art svg{max-height:215px}.feature-art figcaption{font-size:.76rem}.quick-grid{grid-template-columns:1fr;gap:12px;margin-top:18px}.quick{padding:16px 18px}.quick p{margin:5px 0}.library{grid-template-columns:1fr;gap:16px}.card-art{height:150px}.filters{grid-template-columns:1fr}.reading-layout{display:block;padding-top:22px}.rail{position:static;margin:0 0 28px;border-top:1px solid var(--line);padding-top:16px}.rail h2{margin:4px 0 8px}.rail a{display:inline-block;margin-right:18px}.rail .note{display:none}.reading-main h1{font-size:2.1rem}.prose{font-size:1.13rem}.word-grid{grid-template-columns:1fr}.question{padding:16px 12px}.question legend{font-size:.98rem}.choice{padding:11px 6px}.metadata{line-height:1.6}.figure{padding:12px}.progress-summary{gap:8px}.metric{padding:12px 10px}.metric b{font-size:1.5rem}.metric span{font-size:.74rem}.section-title h2{font-size:1.35rem}.section-title a{font-size:.82rem}.toolbar{gap:6px}.toolbar button{padding:8px 10px}.foot{gap:16px}.foot nav{gap:12px}.backup{padding:16px}.write-box{padding:16px}}
@media(prefers-reduced-motion:reduce){*,*::before,*::after{scroll-behavior:auto!important;transition:none!important}}
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.math-work{min-height:42px;border-bottom:1px solid var(--line);margin-top:10px}.math-answer-list li{margin-bottom:14px}@media print{.math-work{min-height:16mm}.math-answer-key{break-before:page}}

.reading-work{min-height:58px;border-bottom:1px solid var(--line);margin-top:12px}.reading-answer-list li{margin-bottom:14px}@media print{.reading-work{min-height:20mm}.reading-answer-key{break-before:page}.reading-question{break-inside:avoid}}


.relationship-lab-layout{grid-template-columns:minmax(0,820px) 210px}
.relationship-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px;margin:18px 0 28px}
.relationship-card{background:var(--paper);border:1px solid var(--line);border-radius:8px;padding:18px;scroll-margin-top:18px}
.relationship-card .pill{margin-bottom:10px}
.relation-chain{font-size:1.08rem;margin:4px 0 8px;line-height:1.45}
.relationship-card p{margin:8px 0;font-size:.91rem}
.relation-actions{display:flex;gap:6px;flex-wrap:wrap;margin-top:12px}
.relation-actions button{font-size:.76rem;min-height:36px;padding:6px 9px}
.relation-filter{display:flex;gap:7px;flex-wrap:wrap;margin:16px 0 8px}
.relation-filter button{font-size:.78rem;min-height:38px;padding:7px 10px}
.relation-filter button[aria-pressed=true]{background:var(--ink);border-color:var(--ink);color:white}
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.relation-chip{display:inline-flex;text-decoration:none;border:1px solid var(--line);border-radius:999px;padding:4px 8px;background:var(--wash);font-size:.75rem}
.word-lab-filters{grid-template-columns:1fr;margin:16px 0}
@media(max-width:760px){.relationship-grid{grid-template-columns:1fr}.relationship-lab-layout{display:block}.relation-filter{gap:5px}.relation-filter button{font-size:.75rem}}
@media print{.relation-filter,.relation-actions{display:none!important}.relationship-grid{grid-template-columns:1fr 1fr}.relationship-card{break-inside:avoid}}

.relation-ipa{font-size:.75rem!important;line-height:1.5;color:var(--muted);margin:2px 0 8px!important}
.relation-ipa span{white-space:nowrap;color:#60726c}

.relation-word-list{display:grid;gap:8px;margin-top:14px}
.relation-word{display:flex;align-items:center;justify-content:space-between;gap:12px;border-top:1px solid var(--line);padding:9px 0}
.relation-word-meta{display:flex;align-items:baseline;gap:7px;min-width:0;flex-wrap:wrap}
.relation-word-meta strong{font-size:.9rem}
.relation-word-ipa{font-size:.7rem;color:var(--muted);font-weight:500}
.relation-word-actions{display:flex;gap:5px;flex-wrap:wrap;justify-content:flex-end}
.relation-word-actions button{font-size:.72rem;min-height:34px;padding:5px 8px}
.relation-word.is-remembered{opacity:.7}
.relation-word.is-remembered .relation-word-meta strong::after{content:"  ✓";color:var(--accent)}
[data-rel-remember][aria-pressed=true]{background:var(--wash);border-color:#8eaa99;color:var(--accent-dark)}
@media(max-width:520px){.relation-word{align-items:flex-start;flex-direction:column}.relation-word-actions{justify-content:flex-start}}
@media print{.relation-word-actions{display:none!important}}

.relation-word-zh{font-size:.78rem;color:#385e58;font-weight:600;white-space:normal}


.assessment-summary,.certificate-check,.verified-certificate{background:#fff;border:1px solid var(--line);border-radius:8px;padding:22px;margin:18px 0;max-width:820px}
.assessment-summary h3{margin-top:0}
.assessment-round{padding:12px 0;border-top:1px solid var(--line)}
.assessment-item{background:white;padding:18px 0;border-bottom:1px solid #bbb;break-inside:avoid}
.assessment-item h3{font-size:1rem;line-height:1.6;margin:0 0 6px;font-weight:600}
.assessment-item .small{margin:0}
.assessment-working{min-height:28mm;border-bottom:1px solid #dedede}
.certificate-check label{display:block;margin-bottom:10px}
.certificate-check textarea{width:100%;border:1px solid #889d91;border-radius:4px;padding:12px;line-height:1.5;word-break:break-all}
.verified-certificate{border:2px solid #555;padding:30px}
.verified-certificate h2{font-family:Georgia,serif;margin:14px 0 24px}
.certificate-token-print{font-size:.7rem;overflow-wrap:anywhere;line-height:1.6;border-top:1px solid #ccc;padding-top:12px}
@media print{@page{size:letter;margin:14mm}.assessment-paper-head{padding:0}.assessment-paper-head .notice{background:white;color:black;border:1px solid #bbb}.assessment-round{break-before:page}.assessment-paper-head + .assessment-round{break-before:auto}.assessment-round h2{font-size:15pt}.assessment-item{padding:10px 0}.assessment-working{min-height:19mm}.verified-certificate{border:1px solid #555;margin:0;padding:22px}.certificate-check,#certificate-status{display:none}.certificate-token-print{font-size:6pt}}
@media print{
.assessment-paper-head h1{font-size:19pt;margin:5px 0 7px}
.assessment-paper-head p{font-size:9pt;line-height:1.3;margin:5px 0}
.assessment-paper-head .notice{display:none}
.assessment-round h2{font-size:14pt;margin:6px 0}
.assessment-round>.small{margin:3px 0 6px;font-size:8pt}
.assessment-item{padding:5px 0}
.assessment-item h3{font-size:10pt;line-height:1.32;margin:0 0 2px}
.assessment-item .small{font-size:8pt;line-height:1.2}
.assessment-working{min-height:13mm}
.assessment-round:last-of-type .assessment-working{min-height:17mm}
}
@media print{
body:has(.assessment-paper-head){background:#fff!important}
body:has(.assessment-paper-head) main,body:has(.assessment-paper-head) section,body:has(.assessment-paper-head) div,body:has(.assessment-paper-head) p{background:transparent!important;background-image:none!important;box-shadow:none!important}
}

.assessment-home-feature{display:grid;grid-template-columns:minmax(0,1fr) 195px;gap:22px;align-items:center;background:#fff;border:1px solid var(--line);border-left:4px solid var(--accent);border-radius:10px;padding:24px 28px;margin:8px 0 24px}
.assessment-home-copy h2{font-size:clamp(1.45rem,2.5vw,2rem);margin:4px 0 10px}
.assessment-home-copy>p:not(.eyebrow){margin:8px 0 0;color:var(--muted);font-size:.95rem;line-height:1.6}
.assessment-home-copy .actions{margin:16px 0 0}
.assessment-home-meta{border-left:1px solid var(--line);padding-left:20px;display:flex;flex-direction:column;gap:7px}
.assessment-home-meta>span{font-size:.78rem;letter-spacing:.035em;font-weight:750;color:var(--accent-dark)}
.assessment-home-meta>strong{font-size:2.4rem;line-height:1.1}
.assessment-home-meta>strong span{font-size:.85rem;font-weight:500}
.assessment-home-meta>small{font-size:.77rem;line-height:1.5}
@media(max-width:760px){.assessment-home-feature{display:block;padding:18px;margin:6px 0 20px}.assessment-home-meta{border-left:0;border-top:1px solid var(--line);padding:10px 0 0;margin-top:14px;gap:3px}.assessment-home-meta>strong{font-size:1.5rem}.assessment-home-copy .actions a{min-width:0}}
@media print{.assessment-home-feature{display:block;border:1px solid #aaa;background:white}.assessment-home-copy .actions{display:none}}

.skill-quiz-unit{margin:30px 0}
.skill-quiz-question{border-bottom:1px solid var(--line);padding:18px 0}
.skill-quiz-question fieldset{border:0;padding:0;margin:12px 0}
.skill-quiz-question legend{font-weight:650;margin-bottom:8px}
.skill-quiz-question .choice{display:flex;align-items:center;gap:12px;min-height:44px}
.skill-quiz-question .feedback{padding:10px 14px;background:var(--wash);border-radius:6px}
.skill-tracker{background:var(--paper);border:1px solid var(--line);border-radius:10px;padding:20px}
.skill-tracker select{display:block;max-width:100%;margin:10px 0;padding:10px;min-height:44px}
[data-skill-draft]{width:100%;max-width:850px;display:block;min-height:180px;padding:16px;line-height:1.65;border:1px solid var(--line);border-radius:8px;background:#fff}
#skill-review .review-item{margin:12px 0}
@media(max-width:640px){.skill-quiz-question{padding:14px 0}.skill-tracker{padding:15px}}

/* ==========================================================================
   2026-10 visual refresh
   Two looks share one stylesheet:
   - kid pages and .kid-zone   -> "notebook": Andika, subject colours, ruled paper, thick ink outlines
   - adult pages and .adult-zone -> "highlighter": Atkinson Hyperlegible + Literata, quiet white, yellow highlighter
   The home page body is adult; its child-facing sections carry .kid-zone.
   Fonts are self-hosted (SIL OFL 1.1, see /assets/fonts/LICENSE.txt). No third-party requests.
   ========================================================================== */
@font-face{font-family:"Andika";src:url(/assets/fonts/andika-latin-400-normal.woff2) format("woff2");font-weight:400;font-style:normal;font-display:swap}
@font-face{font-family:"Andika";src:url(/assets/fonts/andika-latin-700-normal.woff2) format("woff2");font-weight:700;font-style:normal;font-display:swap}
@font-face{font-family:"Literata";src:url(/assets/fonts/literata-latin-400-normal.woff2) format("woff2");font-weight:400;font-style:normal;font-display:swap}
@font-face{font-family:"Literata";src:url(/assets/fonts/literata-latin-400-italic.woff2) format("woff2");font-weight:400;font-style:italic;font-display:swap}
@font-face{font-family:"Literata";src:url(/assets/fonts/literata-latin-600-normal.woff2) format("woff2");font-weight:600 700;font-style:normal;font-display:swap}
@font-face{font-family:"Atkinson Hyperlegible";src:url(/assets/fonts/atkinson-hyperlegible-latin-400-normal.woff2) format("woff2");font-weight:400;font-style:normal;font-display:swap}
@font-face{font-family:"Atkinson Hyperlegible";src:url(/assets/fonts/atkinson-hyperlegible-latin-700-normal.woff2) format("woff2");font-weight:700;font-style:normal;font-display:swap}

/* ---------- Tokens ---------- */
body[data-audience]{
  --ink:#1D2433;--muted:#555D6E;--accent:#2F5DA8;--accent-dark:#1F4583;--paper:#fff;--canvas:#fff;--line:#E2E4E9;--wash:#F6F7F9;
  --hl:#FFE45C;--hl-soft:#FFF8D6;--ok:#E5F3EB;--ok-ink:#174A31;
  --serif:"Literata",Georgia,"Times New Roman",serif;--sans:"Atkinson Hyperlegible",system-ui,-apple-system,"Segoe UI",sans-serif;
  --kid:"Andika","Atkinson Hyperlegible",system-ui,sans-serif;
  --reading:#F2A93B;--reading-tint:#FCE7C4;--reading-ink:#6B4304;
  --maths:#2C64C4;--maths-tint:#DCE7FA;--maths-ink:#1D4A99;
  --english:#C2413D;--english-tint:#F8DDDC;--english-ink:#8E2C29;
  --writing:#6C4FB8;--writing-tint:#E7E0F6;--writing-ink:#4E3790;
  --science:#23805A;--science-tint:#D8EFE3;--science-ink:#1A6545;
  --reasoning:#0F7584;--reasoning-tint:#D5EEF1;--reasoning-ink:#0B5A66;
  font-family:var(--sans);color:var(--ink);background:var(--canvas);font-size:17px
}
body[data-audience=kid],.kid-zone{
  --ink:#23313F;--muted:#4A5A6A;--accent:#2C64C4;--accent-dark:#1D4A99;--canvas:#F3F6FB;--line:#23313F;--wash:#FCE7C4;
  --rule:34px;--rule-line:#CFE0F5;--margin-line:#E8A0A0;
  font-family:var(--kid)
}
body[data-audience=kid]{background:var(--canvas);font-size:18px}
::selection{background:#FFE45C;color:#1D2433}

/* ---------- Shared chrome ---------- */
.brand-mark{width:28px;height:36px;border-radius:4px 9px 9px 4px;background:#2C64C4;box-shadow:inset 6px 0 0 #1D4A99;font-size:0}
.family .brand-mark{background:#23805A;box-shadow:inset 6px 0 0 #1A6545}
.brand{font-weight:700;letter-spacing:-.01em}
.brand small{font-weight:400;letter-spacing:0}
.eyebrow{text-transform:none;letter-spacing:0;font-size:.95rem;font-weight:700;color:var(--muted)}
.nav{gap:10px 18px}
.nav-subjects,.nav-parents{display:flex;flex-wrap:wrap;align-items:center;gap:6px 16px}
.nav-parents{margin-left:auto}
button:focus-visible,a:focus-visible,input:focus-visible,textarea:focus-visible,select:focus-visible,summary:focus-visible{outline:3px solid #1D2433;outline-offset:3px;box-shadow:0 0 0 6px #FFE45C}

/* ==========================================================================
   ADULT: highlighter look (adult pages, the home page body, .adult-zone)
   ========================================================================== */
:is([data-audience=adult],[data-audience=home]) .masthead{background:#fff;border-bottom:1px solid var(--line)}
:is([data-audience=adult],[data-audience=home]) .nav a{color:var(--ink);font-size:.95rem;font-weight:700}
:is([data-audience=adult],[data-audience=home]) .nav-parents a{color:var(--muted);font-weight:400}
:is([data-audience=adult],[data-audience=home]) .nav a:hover{box-shadow:inset 0 -6px 0 var(--hl)}
:is([data-audience=adult],[data-audience=home]) .nav a[aria-current=page]{color:var(--ink);box-shadow:inset 0 -8px 0 var(--hl)}
:is([data-audience=adult],[data-audience=home]) .nav .family-link{color:#fff;background:var(--ink);border:0;border-radius:8px;padding:0 14px;font-weight:700}
:is([data-audience=adult],[data-audience=home]) .nav .family-link:hover{box-shadow:none;background:#000}
:is([data-audience=adult],.adult-zone) h1,:is([data-audience=adult],.adult-zone) h2{font-family:var(--serif);font-weight:600;letter-spacing:-.015em}
[data-audience=adult] h1,.home-hero h1{font-size:clamp(2.1rem,4.4vw,3.6rem);line-height:1.08}
:is([data-audience=adult],.adult-zone) h3{font-family:var(--sans)}
:is([data-audience=adult],.adult-zone) a{color:var(--accent)}
:is([data-audience=adult],.adult-zone) .button,:is([data-audience=adult],.adult-zone) button{border:2px solid var(--ink);border-radius:10px;background:#fff;color:var(--ink);font-weight:700;font-size:.95rem;padding:10px 18px}
:is([data-audience=adult],.adult-zone) .button.primary,:is([data-audience=adult],.adult-zone) .primary{background:var(--ink);color:#fff;border-color:var(--ink)}
:is([data-audience=adult],.adult-zone) .button:hover{background:var(--hl-soft)}
:is([data-audience=adult],.adult-zone) .button.primary:hover{background:#000}
:is([data-audience=adult],.adult-zone) .pill{background:var(--hl-soft);color:var(--ink);border-radius:6px}
:is([data-audience=adult],.adult-zone) .notice{border:0;border-radius:12px;background:var(--hl-soft);font-size:.98rem;padding:18px 22px}
:is([data-audience=adult],.adult-zone) .learning-goal{border:0;border-radius:12px;background:var(--hl-soft)}
:is([data-audience=adult],.adult-zone) .tip{background:var(--hl-soft);border-radius:12px}
:is([data-audience=adult],.adult-zone) .reading-card{border:1px solid var(--line);border-radius:12px}
:is([data-audience=adult],.adult-zone) .reading-card:hover{border-color:var(--ink)}
:is([data-audience=adult],.adult-zone) .reading-card h2{font-family:var(--serif);font-weight:600}
:is([data-audience=adult],.adult-zone) .quick{border:1px solid var(--line);border-top:1px solid var(--line);border-radius:12px;background:#fff}
:is([data-audience=adult],.adult-zone) .quick:hover{border-color:var(--ink)}
:is([data-audience=adult],.adult-zone) .quick h2{font-family:var(--sans);font-weight:700;letter-spacing:0}
:is([data-audience=adult],.adult-zone) .section-title{border-bottom:1px solid var(--line)}
[data-audience=adult] .prose,[data-audience=adult] .legal p{font-family:var(--serif)}
[data-audience=adult] .prose h2{font-family:var(--sans)}
[data-audience=adult] .legal{max-width:720px}
[data-audience=adult] .legal p,[data-audience=adult] .legal li{font-size:1.08rem;line-height:1.8}
[data-audience=adult] .legal h2{font-size:1.5rem;margin-top:40px}
[data-audience=adult] .rail a[aria-current],[data-audience=adult] .rail a:hover{text-decoration:none;box-shadow:inset 0 -6px 0 var(--hl);color:var(--ink)}
[data-audience=adult] .filters,[data-audience=adult] .activity-card,[data-audience=adult] .assessment-summary,[data-audience=adult] .certificate-check{border:1px solid var(--line);border-radius:12px;box-shadow:none}
[data-audience=adult] .activity-tag{background:var(--hl-soft);color:var(--ink)}
[data-audience=adult] .activity-facts dt{color:var(--muted)}
[data-audience=adult] .activity-caution{background:var(--hl-soft);border-left:0;border-radius:8px}
[data-audience=adult] .site-footer,[data-audience=home] .site-footer{background:#fff}

/* Home page, adult parts */
.home-hero{padding:72px 0 40px;max-width:820px}
.home-hero>p{font-size:1.15rem;color:#3A4152}
.home-hero .eyebrow{margin-bottom:14px}
.needs{margin:40px 0 0;padding:56px 0 64px;border-top:1px solid var(--line)}
.needs h2,.parents>h2{font-size:clamp(1.7rem,3vw,2.3rem);margin:0 0 8px}
.need-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));column-gap:56px;margin-top:20px}
.need{display:flex;justify-content:space-between;align-items:baseline;gap:18px;padding:16px 0;border-bottom:1px solid var(--line);text-decoration:none;color:var(--ink)!important}
.need-copy b{display:block;font-size:1.12rem}
.need-copy span{display:block;font-size:.95rem;color:var(--muted)}
.need-grade{flex:none;font-size:.88rem;color:var(--muted);white-space:nowrap}
.need:hover .need-copy b{box-shadow:inset 0 -8px 0 var(--hl)}
.parents{margin:24px 0 0;padding:56px 0 8px;border-top:1px solid var(--line)}
.parent-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;margin:24px 0}
.parent-grid .notice{margin:0}
.parent-grid h3{margin:0 0 6px;font-size:1.08rem}
.parent-grid p{margin:0;font-size:.98rem}
.parent-grid .notice .button{margin-top:12px}
.parent-link{display:block;padding:18px 22px;border:1px solid var(--line);border-radius:12px;text-decoration:none;color:var(--ink)!important}
.parent-link:hover{border-color:var(--ink)}
.parent-link p{color:var(--muted)}
.parents .assessment-home-feature{border:1px solid var(--line);border-radius:12px;background:var(--wash)}
.parents .assessment-home-meta>span{color:var(--muted)}

/* ==========================================================================
   KID: notebook look (kid pages, .kid-zone)
   Written after the adult layer so .kid-zone wins inside the home page.
   ========================================================================== */
[data-audience=kid] .masthead{background:#fff;border-bottom:3px solid var(--ink)}
[data-audience=kid] .nav a{font-weight:700;font-size:.92rem;color:var(--ink)}
[data-audience=kid] .nav-subjects a{min-height:40px;padding:0 14px;border-radius:999px;background:#EDF1F6;color:var(--ink)}
[data-audience=kid] .nav-subjects a[data-subject=reading]{background:var(--reading-tint);color:var(--reading-ink)}
[data-audience=kid] .nav-subjects a[data-subject=maths]{background:var(--maths-tint);color:var(--maths-ink)}
[data-audience=kid] .nav-subjects a[data-subject=english]{background:var(--english-tint);color:var(--english-ink)}
[data-audience=kid] .nav-subjects a[data-subject=writing]{background:var(--writing-tint);color:var(--writing-ink)}
[data-audience=kid] .nav-subjects a[data-subject=science]{background:var(--science-tint);color:var(--science-ink)}
[data-audience=kid] .nav-subjects a[data-subject=reasoning]{background:var(--reasoning-tint);color:var(--reasoning-ink)}
[data-audience=kid] .nav-subjects a[aria-current=page]{box-shadow:inset 0 0 0 2px var(--ink)}
[data-audience=kid] .nav-parents a{color:var(--muted);font-weight:400}
[data-audience=kid] .nav-parents a[aria-current=page]{color:var(--ink);font-weight:700}
[data-audience=kid] .nav .family-link{border:2px solid var(--ink);border-radius:10px;color:var(--ink);font-weight:700}
:is([data-audience=kid],.kid-zone) h1,:is([data-audience=kid],.kid-zone) h2,:is([data-audience=kid],.kid-zone) h3{font-family:var(--kid);font-weight:700;letter-spacing:-.005em}
[data-audience=kid] h1{font-size:clamp(2.1rem,4.6vw,3.4rem);line-height:1.08}
:is([data-audience=kid],.kid-zone) a{color:var(--accent)}
:is([data-audience=kid],.kid-zone) .eyebrow{color:#8A5010}
:is([data-audience=kid],.kid-zone) .button,:is([data-audience=kid],.kid-zone) button{border:2px solid var(--ink);border-radius:12px;background:#fff;color:var(--ink);font-weight:700;font-size:.98rem;padding:10px 18px;box-shadow:0 3px 0 var(--ink)}
:is([data-audience=kid],.kid-zone) .button:active,:is([data-audience=kid],.kid-zone) button:active{transform:translateY(2px);box-shadow:0 1px 0 var(--ink)}
:is([data-audience=kid],.kid-zone) .button.primary,:is([data-audience=kid],.kid-zone) .primary{background:var(--reading);color:var(--ink);border-color:var(--ink)}
:is([data-audience=kid],.kid-zone) .button.primary:hover{background:#E99A24}
:is([data-audience=kid],.kid-zone) .button:hover{background:#FFF7E8}
:is([data-audience=kid],.kid-zone) .pill{background:var(--reading-tint);color:var(--reading-ink);border-radius:999px;font-weight:700;padding:4px 11px}
[data-audience=kid] .intro{padding:44px 0 22px}
[data-audience=kid] .intro p{color:var(--muted);font-size:1.1rem}
[data-audience=kid] .crumb{font-weight:700}
[data-audience=kid] .dek{font-size:1.22rem}
[data-audience=kid] .metadata .pill{background:#fff;color:var(--ink);border:2px solid var(--ink)}
[data-audience=kid] .learning-goal,[data-audience=kid] .tip,[data-audience=kid] .support{border:2px solid var(--ink);border-radius:12px;background:var(--reading-tint);font-size:1rem}
[data-audience=kid] .notice{border:2px solid var(--ink);border-radius:12px;background:#fff;font-size:.98rem}
[data-audience=kid] .toolbar button{font-size:.92rem;padding:8px 14px}
[data-audience=kid] .toolbar button[data-read]{background:var(--reading)}
[data-audience=kid] .toolbar select,[data-audience=kid] .filters input,[data-audience=kid] .filters select{border:2px solid var(--ink);border-radius:10px;min-height:44px;font-family:var(--kid)}
[data-audience=kid] .filters{border:2px solid var(--ink);border-radius:14px}
[data-audience=kid] .rail h2{text-transform:none;letter-spacing:0;font-size:1rem}
[data-audience=kid] .rail a{color:var(--ink);font-weight:700}
[data-audience=kid] .rail a:hover{color:var(--accent)}

/* Cards */
:is([data-audience=kid],.kid-zone) .reading-card,:is([data-audience=kid],.kid-zone) .quick{border:3px solid var(--ink);border-radius:14px;background:#fff;box-shadow:0 5px 0 var(--ink);transition:transform .12s}
:is([data-audience=kid],.kid-zone) .reading-card:hover,:is([data-audience=kid],.kid-zone) .quick:hover{transform:translateY(-2px)}
:is([data-audience=kid],.kid-zone) .card-art{border-bottom:3px solid var(--ink);background:var(--maths-tint)}
:is([data-audience=kid],.kid-zone) .card-art.has-hero{background:var(--maths-tint)}
:is([data-audience=kid],.kid-zone) .card-copy h2,:is([data-audience=kid],.kid-zone) .card-copy h3{font-size:1.3rem;line-height:1.25}
:is([data-audience=kid],.kid-zone) .quick h2{font-size:1.2rem}
:is([data-audience=kid],.kid-zone) .section-title{border-bottom:3px solid var(--ink)}
[data-audience=kid] .library{gap:24px}

/* Reading passage on ruled paper */
[data-audience=kid] .prose{font-family:var(--kid);font-size:1.15rem;line-height:var(--rule);max-width:none;background-color:#fff;
  background-image:linear-gradient(90deg,transparent 63px,var(--margin-line) 63px,var(--margin-line) 65px,transparent 65px),repeating-linear-gradient(180deg,transparent 0,transparent calc(var(--rule) - 1px),var(--rule-line) calc(var(--rule) - 1px),var(--rule-line) var(--rule));
  border:3px solid var(--ink);border-radius:14px;padding:var(--rule) 34px var(--rule) 88px;margin:28px 0}
[data-audience=kid] .prose h2{font-family:var(--kid);font-size:1.4rem;line-height:var(--rule);margin:0;color:var(--maths)}
[data-audience=kid] .prose section+section h2{margin-top:var(--rule)}
[data-audience=kid] .prose p{line-height:var(--rule);margin:0 0 var(--rule)}
[data-audience=kid] .prose section:last-child p:last-child{margin-bottom:0}
[data-audience=kid] .prose sup{line-height:0;font-family:var(--kid)}
[data-audience=kid].large-reading .prose,[data-audience=kid] .large-reading .prose{--rule:44px;font-size:1.45rem}
[data-audience=kid] .figure,[data-audience=kid] .lesson-hero{border:3px solid var(--ink);border-radius:14px;background:#fff}

/* Questions */
[data-audience=kid] .checkpoint{border-top:3px solid var(--ink)}
[data-audience=kid] .checkpoint>h2{font-size:1.9rem}
[data-audience=kid] .question{border:3px solid var(--ink);border-radius:14px;padding:22px 22px 18px;background:#fff}
[data-audience=kid] .question legend{font-size:1.15rem;font-weight:700;background:#fff;padding:0 10px}
[data-audience=kid] .question .skill{display:inline-block;font-size:.85rem;font-weight:700;color:var(--reasoning-ink);background:var(--reasoning-tint);border-radius:999px;padding:2px 10px}
[data-audience=kid] .choice{border:2px solid var(--ink);border-radius:12px;background:#fff;padding:12px 14px;margin:10px 0;font-size:1.05rem;box-shadow:0 3px 0 var(--ink);cursor:pointer}
[data-audience=kid] .choice:hover{background:#FFF7E8}
[data-audience=kid] .choice:has(input:checked){background:var(--reading-tint);border-color:var(--ink)}
[data-audience=kid] .choice input{accent-color:var(--ink);width:22px;height:22px;margin-top:2px}
[data-audience=kid] .feedback{border:2px solid var(--ink);border-radius:12px;background:var(--science-tint);padding:12px 16px;font-size:1rem}
[data-audience=kid] .hint-text{background:var(--reading-tint)}
[data-audience=kid] .details summary{font-weight:700}
[data-audience=kid] .write-box,[data-audience=kid] .skill-tracker{border:3px solid var(--ink);border-radius:14px}
[data-audience=kid] .write-box textarea,[data-audience=kid] [data-skill-draft]{border:2px solid var(--ink);border-radius:10px;font-family:var(--kid);font-size:1.05rem;
  background-image:repeating-linear-gradient(180deg,transparent 0,transparent 31px,var(--rule-line) 31px,var(--rule-line) 32px);line-height:32px;padding:8px 14px}
[data-audience=kid] .self-check input,[data-audience=kid] .choice input[type=checkbox]{accent-color:var(--ink)}

/* Word cards */
[data-audience=kid] .word,[data-audience=kid] .relationship-card,[data-audience=kid] .bookmarked-word{border:2px solid var(--ink);border-radius:12px;border-top:10px solid var(--english);background:#fff}
[data-audience=kid] .word:nth-child(3n+2){border-top-color:var(--maths)}
[data-audience=kid] .word:nth-child(3n){border-top-color:var(--science)}
[data-audience=kid] .word h3{font-size:1.45rem}
[data-audience=kid] .word.is-remembered{background:var(--science-tint)}
[data-audience=kid] .metric{border:2px solid var(--ink);border-radius:12px}
[data-audience=kid] .modes button[aria-pressed=true],[data-audience=kid] .relation-filter button[aria-pressed=true]{background:var(--ink);color:#fff}

/* Home page, kid parts */
.shelf{margin:8px 0 0;padding:40px 0 56px}
.shelf h2{font-size:1.6rem;margin:0 0 20px}
.notebooks{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:20px}
.notebook{display:flex;flex-direction:column;justify-content:space-between;gap:16px;aspect-ratio:3/4;padding:16px 14px 16px 24px;border-radius:6px 14px 14px 6px;background:var(--nb);color:#fff!important;text-decoration:none;
  box-shadow:inset 9px 0 0 rgba(0,0,0,.16),0 8px 0 -3px var(--nb-edge);transition:transform .12s}
.notebook:hover{transform:translateY(-3px) rotate(-1deg)}
.notebook-label{display:block;background:#fff;color:var(--ink);border:2px solid var(--ink);border-radius:6px;padding:8px 10px}
.notebook-label span{display:block;font-size:.78rem;color:var(--muted)}
.notebook-label b{display:block;font-size:1.35rem;line-height:1.15}
.notebook-note{font-weight:700;font-size:.95rem}
.notebook[data-subject=reading]{--nb:var(--reading);--nb-edge:#D99227;color:var(--ink)!important}
.notebook[data-subject=maths]{--nb:var(--maths);--nb-edge:#1D4A99}
.notebook[data-subject=english]{--nb:var(--english);--nb-edge:#93302D}
.notebook[data-subject=writing]{--nb:var(--writing);--nb-edge:#4E3790}
.notebook[data-subject=science]{--nb:var(--science);--nb-edge:#1A6545}
.notebook[data-subject=reasoning]{--nb:var(--reasoning);--nb-edge:#0B5A66}
.today{display:grid;grid-template-columns:minmax(0,1.4fr) minmax(0,1fr);border:3px solid var(--ink);border-radius:14px;overflow:hidden;background:#fff;margin:48px 0}
.today-page{--rule:34px;padding:var(--rule) 36px var(--rule) 92px;line-height:var(--rule);
  background-image:linear-gradient(90deg,transparent 67px,var(--margin-line) 67px,var(--margin-line) 69px,transparent 69px),repeating-linear-gradient(180deg,transparent 0,transparent 33px,var(--rule-line) 33px,var(--rule-line) 34px)}
.today-page h2{font-size:1.85rem;line-height:var(--rule);margin:0}
.today-page p{margin:0 0 var(--rule);font-size:1.1rem}
.today-page .today-kicker{margin:0;color:#8A5010;font-weight:700;font-size:1rem}
.today-page .actions{margin:0;line-height:1.4}
.today-facts{list-style:none;margin:0;padding:32px 30px;background:var(--reading-tint);border-left:3px solid var(--ink);display:flex;flex-direction:column;justify-content:center;gap:12px}
.today-facts li{font-size:1.02rem;line-height:1.5}
.home-library{padding:8px 0 40px}
.home-library .library{grid-template-columns:repeat(3,minmax(0,1fr))}
.home-library .card-copy .metadata,.home-library .card-copy>.small{display:none}

/* ---------- Responsive ---------- */
@media(max-width:1000px){.nav-parents{margin-left:0}.home-library .library{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:760px){
  .nav-subjects,.nav-parents{width:100%}
  .home-hero{padding:40px 0 24px}
  .need-list,.parent-grid,.home-library .library{grid-template-columns:minmax(0,1fr)}
  .notebooks{grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}
  .notebook{aspect-ratio:auto;min-height:150px}
  .today{grid-template-columns:minmax(0,1fr)}
  .today-page{padding:var(--rule) 18px var(--rule) 60px;background-image:linear-gradient(90deg,transparent 43px,var(--margin-line) 43px,var(--margin-line) 45px,transparent 45px),repeating-linear-gradient(180deg,transparent 0,transparent 33px,var(--rule-line) 33px,var(--rule-line) 34px)}
  .today-facts{border-left:0;border-top:3px solid var(--ink);padding:22px 20px}
  [data-audience=kid] .prose{padding:var(--rule) 16px var(--rule) 52px;font-size:1.08rem;background-image:linear-gradient(90deg,transparent 37px,var(--margin-line) 37px,var(--margin-line) 39px,transparent 39px),repeating-linear-gradient(180deg,transparent 0,transparent calc(var(--rule) - 1px),var(--rule-line) calc(var(--rule) - 1px),var(--rule-line) var(--rule))}
  [data-audience=kid] .question{padding:16px 12px}
}
@media(prefers-reduced-motion:reduce){.notebook,.reading-card,.quick{transition:none}.notebook:hover,.reading-card:hover,.quick:hover{transform:none}}
@media print{
  body[data-audience]{font-size:11pt}
  [data-audience=kid] .prose{background:none;border:0;padding:0;margin:0;font-family:var(--kid);font-size:12pt;line-height:1.55}
  [data-audience=kid] .prose p{line-height:1.55;margin:0 0 10pt}
  [data-audience=kid] .prose h2{line-height:1.3;margin:15pt 0 6pt}
  [data-audience=kid] .prose section+section h2{margin-top:15pt}
  [data-audience=kid] .question,[data-audience=kid] .choice,[data-audience=kid] .word,[data-audience=kid] .write-box{box-shadow:none;border-width:1px}
  .notebooks,.shelf{display:none}
  .today{display:block;border:1px solid #999}
  .today-page{background:none;padding:12px}
}

/* ---------- Refinements after browser review ---------- */
.brand,[data-audience] .brand{color:var(--ink)}
.nav{flex-direction:column;align-items:flex-end;gap:10px}
.nav-parents{margin-left:0;gap:6px 18px}
:is([data-audience=kid],.kid-zone) a.reading-card,:is([data-audience=kid],.kid-zone) a.quick,:is([data-audience=adult],.adult-zone) a.reading-card,:is([data-audience=adult],.adult-zone) a.quick{color:var(--ink)}
.home-hero>p.small{font-size:.95rem;color:var(--muted)}
.today-page p,.today-page li{line-height:var(--rule)}
[data-audience=kid] .question legend{float:left;width:100%;padding:0;margin:0 0 14px;line-height:1.45;background:none}
[data-audience=kid] .question legend+*{clear:both}
[data-audience=kid] .question .skill{margin:0 0 8px}
@media(max-width:760px){.nav{flex-direction:column;align-items:stretch}.nav-parents{border-top:1px solid #DADDE3;padding-top:10px}}
@media(max-width:760px){.need{flex-direction:column;gap:2px}.need-grade{order:-1}}
.assessment-home-meta>strong{font-family:var(--serif)}
.notebooks{grid-template-columns:repeat(auto-fit,minmax(128px,1fr))}
[data-audience=kid] .nav-subjects{gap:6px 8px}
[data-audience=kid] .nav-subjects a{padding:0 12px;font-size:.88rem}
.home-outings{margin:28px 0}
.outing-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px;margin-top:14px}
.outing{display:flex;flex-direction:column;gap:4px;padding:16px 18px;border:1px solid var(--line);border-radius:12px;text-decoration:none;color:var(--ink)!important;min-width:0}
.outing:hover{border-color:var(--ink)}
.outing b{font-size:1.02rem;line-height:1.3}
.outing span{color:var(--muted);font-size:.92rem;overflow-wrap:anywhere}
.outing .outing-meta{font-size:.78rem;font-weight:700;letter-spacing:.03em;text-transform:uppercase}
.outing .outing-price{color:var(--ink)}
@media (max-width:900px){.outing-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (max-width:560px){.outing-grid{grid-template-columns:1fr}}
.new-list{list-style:none;padding:0;margin:14px 0 0;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px 24px}
.new-list a{display:grid;grid-template-columns:auto 1fr;gap:2px 12px;padding:10px 0;border-bottom:1px solid var(--line);text-decoration:none;color:var(--ink)!important}
.new-list a:hover b{text-decoration:underline}
.new-list .new-track{grid-column:1/-1;font-size:.76rem;font-weight:700;letter-spacing:.04em;text-transform:uppercase;color:var(--accent)}
.new-list b{font-size:.98rem;line-height:1.35;min-width:0;overflow-wrap:anywhere}
.new-list .new-date{font-size:.8rem;color:var(--muted);align-self:end;white-space:nowrap;grid-column:2;justify-self:end}
@media (max-width:700px){.new-list{grid-template-columns:1fr}}
.about-page .actions{margin:22px 0 8px}
.about-list{padding-left:20px}.about-list li{padding:6px 0;line-height:1.65}
.about-steps{list-style:none;counter-reset:step;padding:0;margin:20px 0}
.about-steps li{counter-increment:step;position:relative;padding:4px 0 14px 52px;border-bottom:1px solid var(--line);margin-bottom:14px}
.about-steps li::before{content:counter(step);position:absolute;left:0;top:6px;width:36px;height:36px;border-radius:50%;background:var(--accent);color:#fff;display:grid;place-items:center;font-weight:800}
.about-steps h3{margin:6px 0 4px;font-size:1.12rem}.about-steps p{margin:0}
.about-stats{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px;margin:24px 0}
.about-stats div{border:1px solid var(--line);border-radius:12px;padding:16px 18px;background:var(--paper)}
.about-stats b{display:block;font-size:2rem;line-height:1.1;color:var(--accent-dark)}
.about-stats span{font-size:.9rem;color:var(--muted)}
@media (max-width:600px){.about-stats{grid-template-columns:1fr}}

.rf-intro{max-width:850px}
.rf-guide,.rf-summary{border:1px solid #d9e1dc;border-radius:16px;background:#fff;padding:1.2rem;margin:1.1rem 0}
.rf-guide ol{padding-left:1.5rem}
.rf-guide li{margin:.45rem 0}
.rf-list{margin:2rem 0}
.rf-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:1rem}
.rf-card{display:flex;flex-direction:column;gap:.45rem;padding:1.2rem;background:#fff;color:inherit;border:1px solid #ccd8d1;border-radius:14px;text-decoration:none;box-shadow:0 2px 8px rgba(0,0,0,.035)}
.rf-card:hover,.rf-card:focus-visible{outline:2px solid #23675b;outline-offset:2px}
.rf-card h2{font-size:1.22rem;margin:.15rem 0}
.rf-card p{margin:0;flex:1;line-height:1.5}
.rf-week,.rf-card-meta{font-size:.88rem;color:#42625b}
.rf-week{font-weight:700}
.rf-progress{font-size:.9rem;font-weight:700;color:#205d51;padding-top:.5rem}
.rf-lesson{max-width:860px;margin:auto}
.rf-lesson .checkpoint{margin:1.5rem 0}
.rf-passage{max-width:66ch;font-size:1.08rem;line-height:1.85}
.rf-passage p{margin:0 0 1.15em}
.rf-map{display:grid;gap:1rem}
.rf-map-label{display:block}
.rf-map-label strong{display:block;margin-bottom:.45rem}
.rf-map textarea{display:block;width:100%;min-height:5.1rem;font:inherit;line-height:1.5;padding:.7rem;border:1px solid #849c96;border-radius:8px;background:#fff;color:#162622}
.rf-score-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:.8rem;margin:1rem 0}
.rf-score-label{display:grid;gap:.35rem;font-weight:600}
.rf-score-label select{width:100%;font:inherit;padding:.55rem;background:#fff;color:#162622;border:1px solid #849c96;border-radius:8px}
.rf-rubric{margin-top:1.5rem;padding:1rem;border:1px solid #bfd0c6;border-radius:12px;background:#f8fbf9}
.rf-saved{font-size:.95rem;margin-top:.65rem;font-weight:600}
.rf-question{border:1px solid #d7dfdb;border-radius:12px;padding:1rem;margin:1rem 0}
.rf-question legend{padding:0 .25rem}
.rf-question .choice{margin:.35rem 0}
.rf-feedback{min-height:1.4em;font-weight:600}
.rf-words{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:.9rem}
.rf-word{padding:1rem;background:#f7f9f8;border:1px solid #d7dfdb;border-radius:12px}
.rf-word h3{margin:.1rem 0 .5rem}
.rf-word p{margin:.4rem 0}
#reading-review p{margin:.7rem 0}
@media(max-width:650px){
 .rf-grid,.rf-score-grid,.rf-words{grid-template-columns:1fr}
 .rf-card,.rf-guide,.rf-summary{padding:1rem}
 .rf-rubric{padding:.75rem}
}
@media print{
 .rf-card,.rf-guide,.rf-summary,.rf-rubric,.rf-word,.rf-question{background:#fff!important;box-shadow:none!important;border:1px solid #777!important}
 .rf-passage{font-size:12pt;line-height:1.65}
 .rf-rubric button,.rf-question button{display:none}
 .rf-map textarea{border:1px solid #888!important;color:#000!important}
}