/* Service intro page (/). Adult-readable, desktop first. Reuses the study room's brand colours and wordmark,
   but none of the student screens' global styles: everything here is scoped to .intro / .intro-*. */
:root{
  color-scheme:light;
  --intro-ink:#26332a;--intro-text:#453f36;--intro-muted:#6c665b;
  --intro-paper:#fffdf8;--intro-ivory:#fbf6ea;--intro-cream:#f4ecda;--intro-line:#e6dbc6;
  --intro-green:#2f6b3d;--intro-green-deep:#1f4a2b;--intro-green-soft:#e7f0de;
  --intro-sun:#f2c24f;--intro-sun-deep:#a8740f;--intro-sun-soft:#fcf1cf;
  --intro-brown:#493325;
  --intro-shadow:0 26px 50px -26px #5a3d1c66,0 3px 10px #5a3d1c14;
  --intro-header-h:72px;
  font-family:system-ui,-apple-system,"Apple SD Gothic Neo","Malgun Gothic",sans-serif;
}
html{background:var(--intro-ivory);scroll-padding-top:calc(var(--intro-header-h) + 28px)}
@media (prefers-reduced-motion:no-preference){html{scroll-behavior:smooth}}
.intro,.intro *,.intro *::before,.intro *::after{box-sizing:border-box}
body.intro{margin:0;min-width:320px;color:var(--intro-text);background:var(--intro-ivory);font-size:18px;line-height:1.7;
  word-break:keep-all;overflow-wrap:break-word;-webkit-font-smoothing:antialiased;font-synthesis:none}
:where(.intro) :where(h1,h2,h3,p,figure,dl,dd,ol,ul){margin:0}
:where(.intro) :where(ol,ul){padding:0;list-style:none}
:where(.intro) img{display:block;max-width:100%;height:auto}
:where(.intro) a{color:inherit}
.intro [hidden]{display:none!important}
:where(.intro) :focus-visible{outline:3px solid var(--intro-green);outline-offset:4px}
.intro .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}
.intro-skip{position:fixed;left:24px;top:-90px;z-index:100;padding:12px 18px;border:2px solid var(--intro-green);border-radius:10px;background:var(--intro-paper);font-weight:750;text-decoration:none}
.intro-skip:focus{top:12px}
#main:focus{outline:none}
.intro-wrap{width:100%;max-width:1280px;margin:0 auto;padding:0 48px}

/* Header: in-page anchors only. No account, sign-up or contact actions. */
.intro-header{position:sticky;top:0;z-index:50;height:var(--intro-header-h);background:var(--intro-ivory);border-bottom:1px solid var(--intro-line)}
.intro-header__inner{display:flex;align-items:center;justify-content:space-between;gap:32px;height:100%;max-width:1280px;margin:0 auto;padding:0 48px}
.intro-brand{display:flex;align-items:center;gap:12px;flex-shrink:0;text-decoration:none}
.intro-brand__face{position:relative;display:block;flex-shrink:0;width:42px;height:42px;border-radius:48% 50% 42% 44%;background:radial-gradient(circle at 30% 24%,#fff6bc,#f4cf69 70%);box-shadow:inset -2px -4px 5px #ceaa4033,0 3px 5px #c3a56730}
.intro-brand__face::before,.intro-brand__face::after{content:"";position:absolute;top:17px;width:3px;height:5px;border-radius:50%;background:#6b5738}
.intro-brand__face::before{left:12px}.intro-brand__face::after{right:12px}
.intro-brand__face i{position:absolute;top:23px;left:17px;width:8px;height:5px;border-bottom:1.5px solid #6b5738;border-radius:0 0 50% 50%}
.intro-brand__word strong{display:block;font-size:24px;font-weight:800;letter-spacing:-1px;line-height:1.1;color:var(--intro-brown)}
.intro-brand__word em{font-style:normal;color:#29713b}
.intro-brand__word small{display:block;margin-top:5px;font-size:8px;font-weight:600;letter-spacing:3.4px;line-height:1.2;color:#7c6f61}
.intro-nav ul{display:flex;gap:4px}
.intro-nav a{display:block;padding:9px 15px;border-radius:12px;font-size:16px;font-weight:650;line-height:1.5;text-decoration:none;color:var(--intro-text);transition:background-color .15s,color .15s}
.intro-nav a:hover{background:var(--intro-cream);color:var(--intro-ink)}
.intro-nav a[aria-current]{background:var(--intro-green-soft);color:var(--intro-green)}

/* Shared pieces */
.intro-section{padding:120px 0}
.intro-head{max-width:760px;margin-bottom:64px}
.intro-eyebrow{margin-bottom:14px;font-size:15px;font-weight:750;letter-spacing:.02em;color:var(--intro-green)}
:where(.intro) h2{font-size:clamp(34px,2.8vw,44px);font-weight:800;line-height:1.3;letter-spacing:-.025em;color:var(--intro-ink)}
.intro-head__lead{margin-top:20px;font-size:19px;line-height:1.75}
/* Current vs. planned: one line at the start of a section, not a badge on every card. */
.intro-state{display:flex;align-items:center;gap:9px;margin-top:22px;font-size:15px;font-weight:650;line-height:1.5;color:var(--intro-muted)}
.intro-state::before{content:"";flex-shrink:0;width:10px;height:10px;border-radius:50%}
.intro-state--now::before{background:var(--intro-green)}
.intro-state--next::before{border:2px solid var(--intro-sun-deep);background:transparent}
.intro-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:36px}
.intro-actions--center{justify-content:center}
.intro-button{display:inline-flex;align-items:center;justify-content:center;gap:10px;min-height:56px;padding:0 26px;border:1.5px solid #d6c9b0;border-radius:14px;background:var(--intro-paper);font-size:17px;font-weight:750;line-height:1.2;text-decoration:none;color:var(--intro-ink);transition:background-color .15s,border-color .15s}
.intro-button:hover{border-color:#b9a785;background:#fff}
.intro-button--primary{border-color:var(--intro-green);background:var(--intro-green);color:#fff;box-shadow:0 3px 0 var(--intro-green-deep)}
.intro-button--primary:hover{border-color:#285c34;background:#285c34}
.intro-icon{width:20px;height:20px;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}

/* Screenshot links: open the full screen. Without JS the browser shows the image file itself. */
.intro-shot{position:relative;display:block;overflow:hidden;border-radius:16px;background:var(--intro-cream);box-shadow:var(--intro-shadow);text-decoration:none;isolation:isolate}
.intro-shot::after{content:"";position:absolute;inset:0;z-index:1;border-radius:inherit;box-shadow:inset 0 0 0 1px #2c1f0f1a;pointer-events:none}
.intro-shot img{width:100%}
.intro-shot:focus-visible{outline-offset:6px}
.intro-shot__zoom{position:absolute;right:12px;bottom:12px;z-index:2;display:inline-flex;align-items:center;gap:6px;padding:6px 12px 6px 10px;border-radius:999px;background:#fffdf8eb;box-shadow:0 2px 8px #3a2a1426;font-size:13px;font-weight:700;line-height:1.3;color:var(--intro-ink);transition:background-color .15s}
.intro-shot__zoom::before{content:"";width:11px;height:11px;border:2px solid currentColor;border-radius:50%;box-shadow:4px 4px 0 -2.5px var(--intro-paper),5px 5px 0 -2px currentColor}
.intro-shot:not(.intro-shot--hero) .intro-shot__zoom{opacity:0;transform:translateY(4px);transition:opacity .18s,transform .18s}
.intro-shot:hover .intro-shot__zoom,.intro-shot:focus-visible .intro-shot__zoom{opacity:1;transform:none;background:#fff}
.intro-shot--small{border-radius:12px}
.intro-shot.is-broken{display:grid;place-items:center;min-height:180px;background:repeating-linear-gradient(135deg,#f4ecda 0 14px,#efe5cf 14px 28px)}
.intro-shot.is-broken img,.intro-shot.is-broken .intro-shot__zoom{display:none}
.intro-shot__fallback{display:grid;gap:6px;max-width:34em;padding:24px 28px;text-align:center;font-size:14px;line-height:1.6;color:var(--intro-muted)}
.intro-shot__fallback strong{font-size:15px;color:var(--intro-ink)}
:where(.intro) figcaption{margin-top:14px;font-size:15px;line-height:1.65;color:var(--intro-muted)}

/* 1. Hero */
.intro-hero{padding:76px 0 104px;background:radial-gradient(1100px 520px at 88% -8%,#fcefc6 0,#fbf6ea00 62%),var(--intro-ivory)}
.intro-hero__grid{display:grid;grid-template-columns:minmax(0,5.3fr) minmax(0,6fr);gap:64px;align-items:center}
.intro-status{display:inline-flex;align-items:center;gap:9px;margin-bottom:30px;padding:6px 15px 6px 12px;border:1px solid var(--intro-line);border-radius:999px;background:var(--intro-paper);font-size:14px;font-weight:700;line-height:1.5;color:var(--intro-muted)}
.intro-status__dot{width:8px;height:8px;border-radius:50%;background:var(--intro-sun);box-shadow:0 0 0 3px #f2c24f40}
.intro-kicker{margin-bottom:16px;font-size:18px;font-weight:750;color:var(--intro-green)}
.intro-hero h1{font-size:clamp(48px,3.7vw,54px);font-weight:800;line-height:1.2;letter-spacing:-.035em;color:var(--intro-ink)}
.intro-hero__lead{max-width:29em;margin-top:26px;font-size:19px;line-height:1.75}
.intro-hero__map{max-width:30em;margin-top:30px;padding-top:22px;border-top:1px solid var(--intro-line);font-size:15px;line-height:1.65;color:var(--intro-muted)}
.intro-hero__figure{position:relative}
.intro-hero__figure figcaption{padding-left:96px}
.intro-hero__pudding{position:absolute;left:-46px;bottom:-14px;z-index:3;width:132px;filter:drop-shadow(0 10px 10px #7a531e33);pointer-events:none}
@media (prefers-reduced-motion:no-preference){
  .intro-hero__copy,.intro-hero__figure{animation:intro-rise .6s cubic-bezier(.2,.7,.2,1) both}
  .intro-hero__figure{animation-delay:.08s}
  .intro-hero__pudding{animation:intro-peek .7s .35s cubic-bezier(.3,1.4,.5,1) both}
}
@keyframes intro-rise{from{opacity:0;transform:translateY(14px)}}
@keyframes intro-peek{from{opacity:0;transform:translateY(18px) scale(.92)}}

/* 2. Learning: a big question screen with smaller library and result crops around it */
.intro-learning{background:var(--intro-paper)}
.intro-steps{display:grid;gap:120px}
.intro-step{display:grid;grid-template-columns:minmax(0,4fr) minmax(0,7.2fr);gap:64px;align-items:center}
.intro-step__num{display:flex;align-items:center;gap:12px;margin-bottom:16px;font-size:15px;font-weight:800;letter-spacing:.08em;color:var(--intro-sun-deep)}
.intro-step__num::after{content:"";width:40px;height:2px;background:var(--intro-sun)}
.intro-step h3{font-size:30px;font-weight:800;line-height:1.35;letter-spacing:-.02em;color:var(--intro-ink)}
.intro-step__copy>p{margin-top:14px;font-size:19px}
.intro-step__copy>.intro-step__note{margin-top:22px;padding-top:20px;border-top:1px solid var(--intro-line);font-size:16px;line-height:1.75;color:var(--intro-muted)}
.intro-step--practice{grid-template-columns:minmax(0,7.6fr) minmax(0,4fr);row-gap:56px}
.intro-step--resume{grid-template-columns:minmax(0,5fr) minmax(0,5.6fr)}
.intro-step__figure--narrow{justify-self:center;width:100%;max-width:500px}
.intro-types{grid-column:1/-1;display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:32px;padding:40px;border-radius:22px;background:var(--intro-ivory)}
.intro-types .intro-shot{box-shadow:0 14px 28px -18px #5a3d1c55,0 1px 4px #5a3d1c12}
.intro-types figcaption{margin-top:16px;font-size:15px}
.intro-types figcaption strong{display:block;margin-bottom:2px;font-size:18px;font-weight:800;color:var(--intro-ink)}

/* 3. Records: the real report strip with plain definitions under it */
.intro-records{background:var(--intro-ivory)}
.intro-head--split{display:grid;grid-template-columns:minmax(0,5fr) minmax(0,6fr);gap:64px;align-items:end;max-width:none}
.intro-head--split .intro-head__lead{margin-top:0}
.intro-records__figure .intro-shot{border-radius:20px}
.intro-metrics{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));margin-top:64px;border-top:2px solid var(--intro-ink)}
.intro-metrics>div{padding:26px 36px 0 0}
.intro-metrics>div+div{padding-left:36px;border-left:1px solid var(--intro-line)}
.intro-metrics dt{font-size:21px;font-weight:800;line-height:1.4;color:var(--intro-ink)}
.intro-metrics dt span{display:block;margin-top:2px;font-size:14px;font-weight:600;color:var(--intro-muted)}
.intro-metrics dd{margin-top:12px;font-size:17px;line-height:1.75}
.intro-records__scope{display:flex;gap:12px;margin-top:56px;padding:20px 24px;border-radius:14px;background:var(--intro-cream);font-size:16.5px;line-height:1.7;color:var(--intro-text)}
.intro-records__scope::before{content:"i";display:grid;place-items:center;flex-shrink:0;width:24px;height:24px;margin-top:2px;border-radius:50%;background:var(--intro-ink);font:italic 700 14px/1 Georgia,serif;color:var(--intro-paper)}

/* 4. Direction: a wide colour band, clearly marked as planned */
.intro-direction{background:var(--intro-green-deep);color:#e4e6d8}
.intro-direction h2,.intro-direction h3{color:#fffaf0}
.intro-direction .intro-eyebrow{color:var(--intro-sun)}
.intro-direction .intro-head__lead{color:#e4e6d8}
.intro-direction .intro-state{color:#d4d9c5}
.intro-direction .intro-state--next::before{border-color:var(--intro-sun)}
.intro-direction :focus-visible{outline-color:var(--intro-sun)}
.intro-flow{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));counter-reset:flow}
.intro-flow li{position:relative;padding-right:48px;counter-increment:flow}
.intro-flow li::before{content:counter(flow);position:relative;z-index:1;display:grid;place-items:center;width:48px;height:48px;margin-bottom:24px;border:2px solid var(--intro-sun);border-radius:50%;background:var(--intro-green-deep);font-size:19px;font-weight:800;color:var(--intro-sun)}
.intro-flow li:not(:last-child)::after{content:"";position:absolute;top:23px;left:60px;right:12px;height:2px;background:repeating-linear-gradient(90deg,#f2c24f99 0 8px,transparent 8px 15px)}
.intro-flow__step{display:block;margin-bottom:8px;font-size:15px;font-weight:700;color:var(--intro-sun)}
.intro-flow h3{font-size:25px;font-weight:800;line-height:1.4;letter-spacing:-.02em}
.intro-flow p{margin-top:14px;font-size:17.5px;line-height:1.75;color:#dde2d1}
.intro-direction__aside{margin-top:72px;padding-top:30px;border-top:1px solid #ffffff2b;font-size:20px;font-weight:650;line-height:1.6;color:#fffaf0}

/* 5. Slime: the study pudding, the current wardrobe preview and the reward direction */
.intro-slime{background:linear-gradient(180deg,#fcf2d6,var(--intro-ivory) 70%)}
.intro-slime__grid{display:grid;grid-template-columns:minmax(0,6.2fr) minmax(0,5fr);grid-template-areas:"stage copy" "figure future";column-gap:72px;row-gap:56px;align-items:center}
.intro-slime__copy{grid-area:copy}.intro-pudding{grid-area:stage}.intro-slime__figure{grid-area:figure}.intro-slime__future{grid-area:future}
.intro-slime__copy>p{margin-top:22px;font-size:19px}
.intro-slime__future{padding:26px 28px;border:1.5px dashed #d3b874;border-radius:16px;background:#fffdf8b8}
.intro-slime__future .intro-state{margin:0 0 8px}
.intro-slime__future p:last-child{font-size:17px;line-height:1.75}
.intro-pudding{position:relative;display:grid;justify-items:center;padding-bottom:8px}
.intro-pudding::before{content:"";position:absolute;top:0;left:50%;width:300px;height:300px;border-radius:50%;background:radial-gradient(circle,#fbe3a0 0,#fbe3a000 68%);transform:translateX(-50%)}
/* The composition box leaves room for tails on the right; shift it so the body sits on the glow. */
.intro-pudding__static,.intro-pudding__live{position:relative;grid-area:1/1;width:280px;max-width:100%;translate:14px 0}
.intro-pudding__live{z-index:1}
.intro-pudding__hello{position:relative;margin-top:4px;padding:9px 18px;border:1.5px solid #d6c9b0;border-radius:999px;background:var(--intro-paper);font:inherit;font-size:15px;font-weight:700;line-height:1.3;color:var(--intro-ink);cursor:pointer}
.intro-pudding__hello:hover{border-color:#b9a785;background:#fff}
.intro-pudding__caption{position:relative;margin-top:10px;font-size:15px;color:var(--intro-muted)}

/* 6. Development news */
.intro-updates{background:var(--intro-paper)}
.intro-updates__grid{display:grid;grid-template-columns:minmax(0,4fr) minmax(0,7fr);gap:80px;align-items:start}
.intro-updates .intro-head{position:sticky;top:calc(var(--intro-header-h) + 48px);margin-bottom:0}
.intro-news{border-top:2px solid var(--intro-ink)}
.intro-news>li{border-bottom:1px solid var(--intro-line)}
.intro-news__item{padding:32px 0 30px}
.intro-news__meta{display:flex;align-items:center;gap:14px;font-size:14px;font-weight:700;line-height:1.5;color:var(--intro-muted)}
.intro-news__meta time{font-variant-numeric:tabular-nums;color:var(--intro-ink)}
.intro-news__meta span{padding:3px 11px;border-radius:999px;background:var(--intro-green-soft);color:var(--intro-green)}
.intro-news h3{margin-top:12px;font-size:24px;font-weight:800;line-height:1.4;letter-spacing:-.015em;color:var(--intro-ink)}
.intro-news__item>p{margin-top:10px;font-size:17.5px}
.intro-news details{margin-top:14px}
.intro-news summary{display:inline-flex;align-items:center;gap:8px;padding:4px 2px;border-radius:6px;font-size:15px;font-weight:750;color:var(--intro-green);list-style:none;cursor:pointer}
.intro-news summary::-webkit-details-marker{display:none}
.intro-news summary::after{content:"";width:8px;height:8px;margin-top:-4px;border-right:2px solid;border-bottom:2px solid;transform:rotate(45deg);transition:transform .2s}
.intro-news details[open] summary::after{margin-top:4px;transform:rotate(-135deg)}
.intro-news details p{margin-top:12px;padding-left:18px;border-left:3px solid var(--intro-sun);font-size:17px;line-height:1.75}

/* 7. FAQ and the short note for parents */
.intro-faq{background:var(--intro-ivory)}
.intro-faq__grid{display:grid;grid-template-columns:minmax(0,7fr) minmax(0,4fr);gap:72px;align-items:start}
.intro-faq__list{border-top:2px solid var(--intro-ink)}
.intro-faq__list details{border-bottom:1px solid var(--intro-line)}
.intro-faq__list summary{display:flex;align-items:center;justify-content:space-between;gap:24px;padding:24px 6px;font-size:19.5px;font-weight:750;line-height:1.5;color:var(--intro-ink);list-style:none;cursor:pointer}
.intro-faq__list summary::-webkit-details-marker{display:none}
.intro-faq__list summary::after{content:"";flex-shrink:0;width:11px;height:11px;margin:-6px 6px 0 0;border-right:2px solid var(--intro-green);border-bottom:2px solid var(--intro-green);transform:rotate(45deg);transition:transform .2s}
.intro-faq__list details[open] summary::after{margin-top:6px;transform:rotate(-135deg)}
.intro-faq__list summary:hover{color:var(--intro-green)}
.intro-faq__list details p{padding:0 56px 28px 6px;font-size:17.5px;line-height:1.8}
.intro-parents{position:sticky;top:calc(var(--intro-header-h) + 48px);padding:34px 34px 36px;border:1px solid var(--intro-line);border-radius:22px;background:var(--intro-paper)}
.intro-parents img{width:104px;margin:-6px 0 10px -10px}
.intro-parents h3{font-size:23px;font-weight:800;line-height:1.45;letter-spacing:-.015em;color:var(--intro-ink)}
.intro-parents p:last-child{margin-top:14px;font-size:17px;line-height:1.8}

/* 8. Closing and footer */
.intro-outro{padding:112px 0 120px;background:var(--intro-green-soft);text-align:center}
.intro-outro__inner{display:grid;justify-items:center}
.intro-outro__face{margin-bottom:38px;transform:scale(1.55)}
.intro-outro p{max-width:32em;margin-top:18px;font-size:19px}
.intro-outro .intro-actions{margin-top:34px}
.intro-footer{padding:40px 0 48px;border-top:1px solid var(--intro-line);background:var(--intro-ivory)}
.intro-footer__inner{display:flex;align-items:center;justify-content:space-between;gap:32px}
.intro-footer p{font-size:14px;line-height:1.6;color:var(--intro-muted);text-align:right}
.intro-brand--small .intro-brand__word strong{font-size:21px}

/* Full-screen viewer (created by service-intro.js) */
.intro-viewer{width:min(1480px,calc(100vw - 64px));max-width:none;max-height:calc(100vh - 48px);padding:0;border:0;border-radius:18px;background:var(--intro-paper);box-shadow:0 30px 90px #0000006b;overflow:hidden;color:var(--intro-text)}
.intro-viewer::backdrop{background:#1d1a14d1}
.intro-viewer figure{display:grid;grid-template-rows:minmax(0,1fr) auto;max-height:calc(100vh - 48px);margin:0}
.intro-viewer__frame{display:grid;place-items:center;min-height:0;background:#efe6d3}
.intro-viewer__frame img{width:auto;max-width:100%;max-height:calc(100vh - 140px);object-fit:contain}
.intro-viewer__error{padding:80px 32px;font-size:16px;color:var(--intro-muted)}
.intro-viewer figcaption{display:flex;align-items:center;justify-content:space-between;gap:24px;margin:0;padding:14px 16px 14px 24px;font-size:15.5px;line-height:1.55;color:var(--intro-text)}
.intro-viewer__close{flex-shrink:0;min-height:44px;padding:0 20px;border:1.5px solid #d6c9b0;border-radius:12px;background:var(--intro-paper);font:inherit;font-size:15px;font-weight:750;color:var(--intro-ink);cursor:pointer}
.intro-viewer__close:hover{border-color:#b9a785;background:#fff}

@media (prefers-reduced-motion:reduce){.intro *,.intro *::before,.intro *::after{transition:none!important;animation:none!important}}