/* ==========================================================================
   Cour.pro UK — Design System
   World-class, accessible (WCAG 2.2 AA), Children's-Code-aware.
   No dark patterns. High contrast. Large touch targets (min 44x44px).
   ========================================================================== */

:root {
  --brand:#4338ca; --brand-dark:#3730a3; --brand-light:#eef2ff;
  --accent:#0d9488; --accent-warm:#f59e0b; --success:#15803d; --danger:#b91c1c;
  --ink:#0f172a; --body:#334155; --muted:#475569; --line:#e2e8f0; --surface:#f8fafc; --white:#fff;
  --font:"Inter",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  --maxw:1200px; --r-sm:8px; --r-md:14px; --r-lg:22px; --r-xl:32px;
  --shadow-sm:0 1px 3px rgba(15,23,42,.08),0 1px 2px rgba(15,23,42,.04);
  --shadow-md:0 10px 25px rgba(15,23,42,.08),0 4px 10px rgba(15,23,42,.04);
  --shadow-lg:0 24px 48px rgba(15,23,42,.12);
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{animation-duration:.001ms!important;transition-duration:.001ms!important}}
body{font-family:var(--font);color:var(--body);background:var(--white);line-height:1.65;font-size:17px;-webkit-font-smoothing:antialiased}
img{max-width:100%;display:block}
a{color:var(--brand);text-decoration:underline;text-underline-offset:2px}
a:hover{color:var(--brand-dark)}
h1,h2,h3,h4{color:var(--ink);line-height:1.15;font-weight:800;letter-spacing:-.02em}
h1{font-size:clamp(2.2rem,5vw,3.6rem)}
h2{font-size:clamp(1.7rem,3.5vw,2.6rem)}
h3{font-size:1.3rem}
p{margin-bottom:1rem}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
.skip-link{position:absolute;left:8px;top:-60px;z-index:1000;background:var(--brand);color:#fff;padding:12px 18px;border-radius:var(--r-sm);transition:top .15s;text-decoration:none;font-weight:600}
.skip-link:focus{top:8px;color:#fff}
:focus-visible{outline:3px solid var(--brand);outline-offset:3px;border-radius:4px}
.container{max-width:var(--maxw);margin:0 auto;padding:0 24px}
.section{padding:84px 0}
.section--tint{background:var(--surface)}
.center{text-align:center}
.lead{font-size:1.2rem;color:var(--muted);max-width:60ch}
.center .lead{margin-left:auto;margin-right:auto}
.eyebrow{display:inline-block;font-weight:700;font-size:.8rem;letter-spacing:.08em;text-transform:uppercase;color:var(--accent);margin-bottom:14px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:50px;padding:13px 26px;border-radius:var(--r-md);font-weight:700;font-size:1rem;text-decoration:none;cursor:pointer;border:2px solid transparent;transition:transform .12s,box-shadow .15s,background .15s}
.btn:active{transform:translateY(1px)}
.btn-primary{background:var(--brand);color:#fff;box-shadow:var(--shadow-sm)}
.btn-primary:hover{background:var(--brand-dark);color:#fff;box-shadow:var(--shadow-md)}
.btn-ghost{background:#fff;color:var(--brand);border-color:var(--line)}
.btn-ghost:hover{border-color:var(--brand);color:var(--brand-dark)}
.btn-lg{min-height:58px;padding:16px 32px;font-size:1.1rem}
.btn-block{width:100%}
.site-header{position:sticky;top:0;z-index:100;background:rgba(255,255,255,.9);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.nav{display:flex;align-items:center;justify-content:space-between;height:74px}
.brand{display:flex;align-items:center;gap:11px;text-decoration:none;font-weight:800;color:var(--ink);font-size:1.2rem}
.brand-mark{width:38px;height:38px;border-radius:11px;display:grid;place-items:center;background:linear-gradient(135deg,var(--brand),var(--accent));color:#fff;font-weight:800;font-size:1.1rem}
.brand-tld{color:var(--accent)}
.nav-links{display:flex;align-items:center;gap:4px;list-style:none}
.nav-links a{color:var(--body);text-decoration:none;font-weight:600;padding:10px 14px;border-radius:var(--r-sm);font-size:.98rem}
.nav-links a:hover,.nav-links a[aria-current="page"]{background:var(--brand-light);color:var(--brand)}
.nav-cta{display:flex;align-items:center;gap:10px}
.nav-toggle{display:none;background:none;border:2px solid var(--line);border-radius:var(--r-sm);width:48px;height:48px;cursor:pointer;font-size:1.4rem;color:var(--ink)}
@media (max-width:940px){.nav-toggle{display:grid;place-items:center}.nav-links,.nav-cta .btn-ghost{display:none}.nav-links.open{display:flex;flex-direction:column;align-items:stretch;gap:2px;position:absolute;top:74px;left:0;right:0;background:#fff;border-bottom:1px solid var(--line);padding:12px 24px 18px;box-shadow:var(--shadow-md)}.nav-links.open a{padding:14px;font-size:1.05rem}}
.hero{padding:70px 0 60px;background:radial-gradient(1200px 500px at 80% -10%,var(--brand-light),transparent)}
.hero-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:56px;align-items:center}
.hero h1{margin-bottom:18px}
.hero p.lead{margin-bottom:28px}
.hero-cta{display:flex;gap:14px;flex-wrap:wrap}
.hero-trust{margin-top:22px;font-size:.92rem;color:var(--muted);display:flex;gap:18px;flex-wrap:wrap}
.hero-trust span{display:inline-flex;align-items:center;gap:7px}
.hero-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-xl);padding:26px;box-shadow:var(--shadow-lg)}
.hero-card h3{margin-bottom:4px}
.stat-row{display:flex;justify-content:space-between;gap:12px;margin-top:18px}
.stat{text-align:center;flex:1;background:var(--surface);border-radius:var(--r-md);padding:16px 8px}
.stat b{display:block;font-size:1.7rem;color:var(--brand)}
.stat small{color:var(--muted)}
.progress-demo{margin-top:18px}
.pd-row{display:flex;align-items:center;gap:10px;margin-bottom:12px}
.pd-row span{width:64px;font-size:.9rem;font-weight:600;color:var(--ink)}
.bar{flex:1;height:10px;border-radius:99px;background:var(--line);overflow:hidden}
.bar>i{display:block;height:100%;border-radius:99px;background:linear-gradient(90deg,var(--brand),var(--accent))}
@media (max-width:860px){.hero-grid{grid-template-columns:1fr;gap:36px}}
.trustbar{padding:28px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.trustbar .container{display:flex;align-items:center;justify-content:center;gap:40px;flex-wrap:wrap}
.trustbar p{margin:0;color:var(--muted);font-weight:600;font-size:.85rem;letter-spacing:.04em;text-transform:uppercase}
.trust-logo{font-weight:800;color:var(--muted);font-size:1.05rem;opacity:.75}
.grid{display:grid;gap:26px}
.grid-2{grid-template-columns:repeat(2,1fr)}
.grid-3{grid-template-columns:repeat(3,1fr)}
.grid-4{grid-template-columns:repeat(4,1fr)}
@media (max-width:900px){.grid-3,.grid-4{grid-template-columns:repeat(2,1fr)}}
@media (max-width:600px){.grid-2,.grid-3,.grid-4{grid-template-columns:1fr}}
.card{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:30px;box-shadow:var(--shadow-sm);transition:transform .15s,box-shadow .15s}
.card:hover{transform:translateY(-3px);box-shadow:var(--shadow-md)}
.card .ico{width:52px;height:52px;border-radius:14px;background:var(--brand-light);color:var(--brand);display:grid;place-items:center;font-size:1.5rem;margin-bottom:16px}
.card h3{margin-bottom:8px}
.card p{color:var(--muted);margin:0}
.age-card{text-align:center}
.age-card .pill{display:inline-block;background:var(--accent);color:#fff;font-weight:700;font-size:.8rem;padding:4px 12px;border-radius:99px;margin-bottom:12px}
.age-card .yr{font-size:2rem;font-weight:800;color:var(--ink)}
.steps{counter-reset:step}
.step{position:relative;padding-left:64px;margin-bottom:28px}
.step::before{counter-increment:step;content:counter(step);position:absolute;left:0;top:0;width:44px;height:44px;border-radius:12px;background:var(--brand);color:#fff;font-weight:800;display:grid;place-items:center;font-size:1.2rem}
.step h3{margin-bottom:4px}
.step p{color:var(--muted);margin:0}
.pricing-toggle{display:inline-flex;align-items:center;gap:12px;background:var(--surface);border:1px solid var(--line);border-radius:99px;padding:6px;margin:0 auto 8px}
.pricing-toggle button{border:none;background:none;padding:9px 20px;border-radius:99px;font-weight:700;cursor:pointer;color:var(--muted);min-height:44px}
.pricing-toggle button.active{background:var(--brand);color:#fff}
.save-note{color:var(--success);font-weight:700;font-size:.9rem;margin-bottom:30px}
.price-card{display:flex;flex-direction:column}
.price-card.featured{border-color:var(--brand);border-width:2px;box-shadow:var(--shadow-lg);position:relative}
.price-card .tag{position:absolute;top:-14px;left:50%;transform:translateX(-50%);background:var(--brand);color:#fff;font-size:.78rem;font-weight:700;padding:5px 16px;border-radius:99px}
.price{font-size:2.6rem;font-weight:800;color:var(--ink);margin:8px 0 2px}
.price small{font-size:1rem;font-weight:500;color:var(--muted)}
.price-card ul{list-style:none;margin:18px 0 24px}
.price-card li{padding:8px 0 8px 28px;position:relative;color:var(--body)}
.price-card li::before{content:"✓";position:absolute;left:0;color:var(--success);font-weight:800}
.vat-note{font-size:.85rem;color:var(--muted)}
.faq-item{border:1px solid var(--line);border-radius:var(--r-md);margin-bottom:12px;overflow:hidden;background:#fff}
.faq-q{width:100%;text-align:left;background:none;border:none;padding:20px 22px;font-size:1.08rem;font-weight:700;color:var(--ink);cursor:pointer;display:flex;justify-content:space-between;gap:12px;min-height:44px}
.faq-q:hover{background:var(--surface)}
.faq-q .chev{transition:transform .2s;color:var(--brand)}
.faq-q[aria-expanded="true"] .chev{transform:rotate(180deg)}
.faq-a{padding:0 22px;max-height:0;overflow:hidden;transition:max-height .25s,padding .25s;color:var(--muted)}
.faq-a.open{padding:0 22px 20px;max-height:500px}
.cta-band{background:linear-gradient(135deg,var(--brand),var(--accent));color:#fff;border-radius:var(--r-xl);padding:56px 40px;text-align:center}
.cta-band h2{color:#fff;margin-bottom:12px}
.cta-band p{color:rgba(255,255,255,.92);max-width:56ch;margin:0 auto 26px;font-size:1.15rem}
.cta-band .btn-primary{background:#fff;color:var(--brand)}
.cta-band .btn-primary:hover{background:#f1f5f9;color:var(--brand-dark)}
.site-footer{background:var(--ink);color:#cbd5e1;padding:60px 0 30px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:36px}
.site-footer h4{color:#fff;font-size:.95rem;margin-bottom:14px;letter-spacing:.03em}
.site-footer ul{list-style:none}
.site-footer li{margin-bottom:9px}
.site-footer a{color:#cbd5e1;text-decoration:none;font-size:.95rem}
.site-footer a:hover{color:#fff;text-decoration:underline}
.footer-brand .brand{color:#fff;margin-bottom:12px}
.footer-brand p{color:#94a3b8;font-size:.92rem;max-width:32ch}
.footer-bottom{border-top:1px solid #1e293b;margin-top:40px;padding-top:24px;display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:.88rem;color:#94a3b8}
.footer-badges{display:flex;gap:14px;flex-wrap:wrap}
.footer-badges span{background:#1e293b;padding:6px 12px;border-radius:var(--r-sm);font-size:.8rem;color:#cbd5e1}
@media (max-width:800px){.footer-grid{grid-template-columns:1fr 1fr}}
@media (max-width:480px){.footer-grid{grid-template-columns:1fr}}
.cookie-banner{position:fixed;bottom:0;left:0;right:0;z-index:200;background:#fff;border-top:3px solid var(--brand);box-shadow:0 -8px 30px rgba(15,23,42,.12);padding:22px 0;transform:translateY(110%);transition:transform .3s}
.cookie-banner.show{transform:translateY(0)}
.cookie-inner{display:flex;align-items:center;gap:24px;flex-wrap:wrap}
.cookie-inner p{margin:0;flex:1;min-width:260px;font-size:.95rem}
.cookie-actions{display:flex;gap:12px;flex-wrap:wrap}
.cookie-actions .btn{min-height:46px}
.modal-overlay{position:fixed;inset:0;background:rgba(15,23,42,.55);z-index:300;display:none;align-items:center;justify-content:center;padding:20px}
.modal-overlay.show{display:flex}
.modal{background:#fff;border-radius:var(--r-lg);max-width:560px;width:100%;max-height:90vh;overflow-y:auto;padding:30px;box-shadow:var(--shadow-lg)}
.modal h2{font-size:1.5rem;margin-bottom:8px}
.cookie-cat{border:1px solid var(--line);border-radius:var(--r-md);padding:16px 18px;margin:14px 0}
.cookie-cat header{display:flex;justify-content:space-between;align-items:center;gap:12px}
.cookie-cat h3{font-size:1.05rem;margin:0}
.cookie-cat p{font-size:.9rem;color:var(--muted);margin:8px 0 0}
.switch{position:relative;width:50px;height:28px;flex-shrink:0}
.switch input{opacity:0;width:0;height:0}
.slider{position:absolute;cursor:pointer;inset:0;background:#cbd5e1;border-radius:99px;transition:.2s}
.slider::before{content:"";position:absolute;height:22px;width:22px;left:3px;top:3px;background:#fff;border-radius:50%;transition:.2s}
.switch input:checked + .slider{background:var(--brand)}
.switch input:checked + .slider::before{transform:translateX(22px)}
.switch input:disabled + .slider{background:var(--accent);opacity:.6;cursor:not-allowed}
.agegate{background:var(--brand-light);border:1px solid #c7d2fe;border-radius:var(--r-md);padding:18px 22px;display:flex;gap:16px;align-items:flex-start;margin-bottom:24px}
.agegate .ico{font-size:1.6rem}
.agegate p{margin:0;font-size:.95rem}
.legal-wrap{max-width:820px;margin:0 auto;padding:56px 24px 80px}
.legal-wrap .updated{color:var(--muted);font-size:.92rem;margin-bottom:8px}
.legal-wrap h1{margin-bottom:20px}
.legal-wrap h2{font-size:1.5rem;margin:38px 0 12px;padding-bottom:8px;border-bottom:1px solid var(--line)}
.legal-wrap h3{font-size:1.18rem;margin:24px 0 8px}
.legal-wrap p,.legal-wrap li{color:var(--body)}
.legal-wrap ul,.legal-wrap ol{margin:0 0 16px 22px}
.legal-wrap li{margin-bottom:8px}
.legal-toc{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);padding:22px 26px;margin-bottom:36px}
.legal-toc h2{border:none;margin:0 0 10px;font-size:1.1rem;padding:0}
.legal-toc ol{margin-bottom:0}
.placeholder{background:#fef3c7;border-bottom:2px solid var(--accent-warm);padding:0 3px;font-weight:600}
.callout{background:var(--brand-light);border-left:4px solid var(--brand);padding:14px 18px;border-radius:0 var(--r-sm) var(--r-sm) 0;margin:16px 0}
.callout-child{background:#ecfdf5;border-left-color:var(--accent)}
table.data-table{width:100%;border-collapse:collapse;margin:16px 0;font-size:.95rem}
table.data-table th,table.data-table td{border:1px solid var(--line);padding:10px 12px;text-align:left;vertical-align:top}
table.data-table th{background:var(--surface);font-weight:700;color:var(--ink)}
.demo-shell{max-width:760px;margin:0 auto}
.quiz-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:32px;box-shadow:var(--shadow-md)}
.quiz-meta{display:flex;justify-content:space-between;align-items:center;margin-bottom:8px;color:var(--muted);font-weight:600;font-size:.9rem}
.quiz-progress{height:8px;background:var(--line);border-radius:99px;overflow:hidden;margin-bottom:24px}
.quiz-progress>i{display:block;height:100%;background:var(--brand);border-radius:99px;transition:width .3s}
.quiz-q{font-size:1.35rem;font-weight:800;color:var(--ink);margin-bottom:20px}
.quiz-options{display:grid;gap:12px}
.opt{text-align:left;background:#fff;border:2px solid var(--line);border-radius:var(--r-md);padding:16px 18px;font-size:1.05rem;cursor:pointer;min-height:56px;display:flex;gap:12px;align-items:center;transition:border-color .15s,background .15s}
.opt:hover{border-color:var(--brand);background:var(--brand-light)}
.opt .key{width:30px;height:30px;border-radius:8px;background:var(--surface);display:grid;place-items:center;font-weight:800;color:var(--brand);flex-shrink:0}
.opt.correct{border-color:var(--success);background:#f0fdf4}
.opt.correct .key{background:var(--success);color:#fff}
.opt.wrong{border-color:var(--danger);background:#fef2f2}
.opt.wrong .key{background:var(--danger);color:#fff}
.opt:disabled{cursor:default}
.quiz-feedback{margin-top:20px;padding:18px;border-radius:var(--r-md);display:none}
.quiz-feedback.show{display:block}
.quiz-feedback.right{background:#f0fdf4;border:1px solid #bbf7d0}
.quiz-feedback.wrongfb{background:#fef2f2;border:1px solid #fecaca}
.quiz-feedback h4{margin-bottom:6px}
.quiz-actions{display:flex;justify-content:space-between;gap:12px;margin-top:22px}
.dash{display:grid;grid-template-columns:240px 1fr;gap:28px}
.dash-side{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:18px;height:fit-content;position:sticky;top:94px}
.dash-side a{display:flex;gap:10px;align-items:center;padding:11px 14px;border-radius:var(--r-sm);color:var(--body);text-decoration:none;font-weight:600;margin-bottom:4px}
.dash-side a:hover,.dash-side a.active{background:var(--brand-light);color:var(--brand)}
.dash-main{display:grid;gap:22px}
.dash-head{display:flex;justify-content:space-between;align-items:center;gap:16px;flex-wrap:wrap}
.subjects{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
.subject{background:#fff;border:1px solid var(--line);border-radius:var(--r-md);padding:18px}
.subject .top{display:flex;justify-content:space-between;align-items:baseline;margin-bottom:10px}
.subject .grade{font-size:1.6rem;font-weight:800;color:var(--brand)}
.streak-card{background:linear-gradient(135deg,var(--accent-warm),#fb923c);color:#fff;border-radius:var(--r-lg);padding:24px}
.streak-card b{font-size:2.4rem;display:block}
.heat{display:flex;gap:5px;margin-top:14px;flex-wrap:wrap}
.heat i{width:18px;height:18px;border-radius:4px;background:rgba(255,255,255,.3)}
.heat i.on{background:#fff}
.activity{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:22px}
.activity li{list-style:none;display:flex;justify-content:space-between;padding:11px 0;border-bottom:1px solid var(--line)}
.activity li:last-child{border:none}
.activity .time{color:var(--muted);font-size:.9rem}
@media (max-width:820px){.dash{grid-template-columns:1fr}.dash-side{position:static;display:flex;gap:6px;overflow-x:auto}.subjects{grid-template-columns:1fr}}
.demo-banner{background:var(--accent-warm);color:#422006;text-align:center;padding:10px 16px;font-weight:700;font-size:.92rem}
.page-hero{background:radial-gradient(900px 360px at 70% -20%,var(--brand-light),transparent);padding:64px 0 40px;text-align:center}
.page-hero p{max-width:60ch;margin:12px auto 0;color:var(--muted);font-size:1.15rem}
.form-row{margin-bottom:18px}
.form-row label{display:block;font-weight:700;color:var(--ink);margin-bottom:6px}
.form-row input,.form-row select,.form-row textarea{width:100%;padding:13px 15px;border:2px solid var(--line);border-radius:var(--r-md);font-size:1rem;font-family:inherit;min-height:50px}
.form-row input:focus,.form-row select:focus,.form-row textarea:focus{border-color:var(--brand);outline:none}
.form-hint{font-size:.85rem;color:var(--muted);margin-top:5px}
.consent-row{display:flex;gap:12px;align-items:flex-start;background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);padding:16px}
.consent-row input{width:22px;height:22px;margin-top:2px;flex-shrink:0}

/* ===== Non-verbal reasoning (SVG) ===== */
.nvr-row{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin:16px 0;padding:12px;background:var(--surface);border-radius:var(--r-md)}
.nvr-row svg{background:#fff;border:1px solid var(--line);border-radius:8px}
.nvr-q{width:80px;height:80px;display:grid;place-items:center;font-size:2rem;font-weight:800;color:var(--brand);background:#fff;border:2px dashed var(--brand);border-radius:8px}
.opt-svg{display:grid;place-items:center;min-height:96px}
.opt-svg svg{width:80px;height:80px}
/* ===== Subjects hub ===== */
.subject-hub{display:grid;grid-template-columns:repeat(2,1fr);gap:22px}
@media(max-width:700px){.subject-hub{grid-template-columns:1fr}}
.subject-tile{display:flex;flex-direction:column;text-decoration:none;color:inherit;border:1px solid var(--line);border-radius:var(--r-lg);padding:28px;background:#fff;box-shadow:var(--shadow-sm);transition:transform .15s,box-shadow .15s}
.subject-tile:hover{transform:translateY(-3px);box-shadow:var(--shadow-md);color:inherit}
.subject-tile .ico{width:56px;height:56px;border-radius:14px;background:var(--brand-light);color:var(--brand);display:grid;place-items:center;font-size:1.7rem;margin-bottom:14px}
.subject-tile h3{margin-bottom:6px}
.subject-tile .cnt{color:var(--accent);font-weight:700;font-size:.9rem}
.subject-tile p{color:var(--muted);margin:8px 0 0}