/* Smart Learning — site styles. Tokens follow the approved mockup (tools/gen.py). */
@font-face{font-family:"Literata";src:url(/fonts/literata-600.woff2) format("woff2");font-weight:600;font-style:normal;font-display:swap}
@font-face{font-family:"Golos Text";src:url(/fonts/golos-text.woff2) format("woff2");font-weight:400 600;font-style:normal;font-display:swap}

:root{
  --paper:#F5F1E8;--card:#FCFAF5;--ink:#1C1B18;--muted:#5E594F;--line:#E0D8C8;--soft:#EAE3D5;
  --accent:#B4532A;--accent-2:#E9A77A;--foot-muted:#B8B1A3;
  --serif:"Literata",Georgia,serif;--sans:"Golos Text",system-ui,-apple-system,"Segoe UI",sans-serif;
  --pad:80px;--band:96px;
  --shadow:0 20px 40px -28px rgba(28,27,25,.45);
}
@media (max-width:1199px){:root{--pad:48px;--band:80px}}
@media (max-width:719px){:root{--pad:20px;--band:56px}}

*,*::before,*::after{box-sizing:border-box}
[hidden]{display:none!important}
html{-webkit-text-size-adjust:100%;text-size-adjust:100%}
@media (prefers-reduced-motion:no-preference){html{scroll-behavior:smooth}}
body{margin:0;background:var(--paper);color:var(--ink);font:400 16px/1.5 var(--sans);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}
img{max-width:100%;height:auto}
a{color:var(--ink)}
a:hover{color:var(--accent)}
h1,h2,h3{font-family:var(--serif);font-weight:600;margin:0;line-height:1.15;text-wrap:balance}
p{margin:0}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:4px}
[id]{scroll-margin-top:24px}
.visually-hidden{position:absolute!important;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
.skip{position:absolute;left:-9999px;top:12px;z-index:10;background:var(--ink);color:#fff;padding:10px 16px;border-radius:999px;text-decoration:none;font-weight:600}
.skip:focus{left:16px;color:#fff}

.wrap{max-width:1440px;margin:0 auto;padding-inline:var(--pad)}
.eyebrow{font-size:13px;font-weight:600;letter-spacing:.1em;text-transform:uppercase;color:var(--muted)}
.lead{color:var(--muted);font-size:20px;line-height:1.55}
.band{padding-block:var(--band)}
.soft{background:var(--soft)}
.card{background:var(--card);border:1px solid var(--line);border-radius:20px;box-shadow:var(--shadow)}
.card.flat{box-shadow:none}
.sec-head{display:flex;flex-direction:column;gap:14px;margin-bottom:40px}
.sec-head h2{font-size:clamp(32px,3.4vw,48px);letter-spacing:-.015em;line-height:1.12}
.sec-head.narrow{max-width:720px}
.sec-head.narrow p,.sec-head.split>p{color:var(--muted);font-size:17px;line-height:1.6}
.sec-head.split{flex-direction:row;justify-content:space-between;align-items:flex-end;gap:48px;margin-bottom:48px}
.sec-head.split>div{display:flex;flex-direction:column;gap:16px}
.sec-head.split>p{max-width:440px}
@media (max-width:899px){.sec-head.split{flex-direction:column;align-items:flex-start;gap:16px;margin-bottom:28px}}

/* buttons */
.btns{display:flex;gap:16px;align-items:center;flex-wrap:wrap}
.btn{display:inline-flex;align-items:center;justify-content:center;height:52px;padding:0 28px;border-radius:999px;font-weight:600;text-decoration:none;white-space:nowrap}
.btn-dark{background:var(--ink);color:#fff}
.btn-dark:hover{background:#34322D;color:#fff}
.btn-line{border:1px solid var(--ink);color:var(--ink);padding:0 24px}
.btn-line:hover{background:var(--ink);color:#fff}
.stores{display:flex;gap:12px;flex-wrap:wrap}
.stores{align-items:center}
.badge{display:inline-block;line-height:0;border-radius:8px}
.badge img{display:block;height:48px;width:auto}
.maker .badge img{height:40px}
.soon{display:flex;align-items:center;gap:12px;flex-wrap:wrap}
.soon-pill{display:inline-flex;align-items:center;height:36px;padding:0 16px;border-radius:999px;background:var(--tint);color:var(--acc);font-size:14px;font-weight:600}
.soon>span:last-child{color:var(--muted);font-size:14px}

/* header */
.site-header{border-bottom:1px solid var(--line)}
.hdr{display:flex;align-items:center;justify-content:space-between;gap:24px;padding-block:22px}
.brand{display:inline-flex;align-items:center;gap:12px;text-decoration:none;color:var(--ink);font-family:var(--serif);font-weight:600;font-size:20px;letter-spacing:-.01em}
.brand:hover{color:var(--ink)}
.brand .logo{flex-shrink:0}
.hdr-desk{display:flex;align-items:center;gap:40px}
.nav{display:flex;align-items:center;gap:32px}
.nav a{text-decoration:none;font-size:15px;padding:8px 0;border-bottom:2px solid transparent}
.nav a[aria-current]{border-bottom-color:var(--acc);font-weight:600}
.langs{display:flex;gap:2px;padding:3px;border:1px solid var(--line);border-radius:999px;width:max-content}
.langs a{display:inline-flex;align-items:center;justify-content:center;min-width:44px;height:36px;border-radius:999px;font-size:13px;font-weight:600;text-decoration:none;color:var(--ink)}
.langs a:hover{background:var(--soft);color:var(--ink)}
.langs a[aria-current]{background:var(--ink);color:#fff}
.langs-dark{border-color:#4A463F}
.langs-dark a{color:#E9E3D6}
.langs-dark a:hover{background:#34322D;color:#fff}
.langs-dark a[aria-current]{background:var(--paper);color:var(--ink)}
.hdr-mob{display:none;align-items:center;gap:8px}
.pill-btn{height:44px;min-width:44px;padding:0 12px;border:1px solid var(--line);border-radius:999px;background:transparent;color:var(--ink);font:600 13px var(--sans);cursor:pointer;display:inline-flex;align-items:center;justify-content:center}
.pill-btn.round{padding:0}
.pill-btn .i-close{display:none}
.pill-btn[aria-expanded="true"] .i-open{display:none}
.pill-btn[aria-expanded="true"] .i-close{display:block}
.mmenu{border-top:1px solid var(--line);padding-block:8px 24px}
.mnav{display:flex;flex-direction:column}
.mnav a{text-decoration:none;font-size:18px;padding:14px 0;border-bottom:1px solid var(--line)}
.mnav a[aria-current]{font-weight:600;color:var(--acc)}
.mlabel{margin:20px 0 10px;font-size:12px;font-weight:600;letter-spacing:.08em;text-transform:uppercase;color:var(--muted)}
@media (max-width:1023px){
  .hdr{padding-block:16px}
  .hdr-desk{display:none}
  .hdr-mob{display:flex}
  .brand{font-size:18px}
  .brand .logo{width:28px;height:28px}
}
@media (min-width:1024px){.mmenu{display:none!important}}

/* home: hero */
.hero{padding-block:96px 112px}
.hero-grid{display:grid;grid-template-columns:minmax(0,600px) 520px;justify-content:space-between;align-items:center;gap:64px}
.hero-text{display:flex;flex-direction:column;gap:28px}
.hero h1{font-size:clamp(40px,4.8vw,68px);line-height:1.05;letter-spacing:-.02em}
.sample-stack{display:flex;flex-direction:column;gap:20px}
.sample-stack>:nth-child(2){margin-left:56px}
.sample-stack>:nth-child(3){margin-left:112px}
.sc{padding:24px 28px;display:flex;flex-direction:column;gap:10px}
.chip{align-self:flex-start;font-size:11px;font-weight:600;letter-spacing:.1em;text-transform:uppercase;color:var(--acc);background:var(--tint);padding:5px 10px;border-radius:999px}
.sc-word{font-family:var(--serif);font-size:34px;font-weight:600;line-height:1.2}
.sc-def{color:var(--muted);font-size:15px;line-height:1.5}
.sc-ex{font-size:15px;line-height:1.5;font-style:italic}
.sc-ex mark{background:var(--tint);color:inherit;font-style:normal;padding:0 4px;border-radius:4px}
.forms{display:flex;gap:8px;align-items:center;flex-wrap:wrap}
.form{padding:8px 14px;border-radius:10px;border:1px solid var(--line);background:var(--paper);font-family:var(--serif);font-size:26px;font-weight:600}
.form.hl{border-color:#1C1B18;background:var(--soft)}
.arr{color:var(--muted)}
@media (max-width:1199px){
  .hero-grid{grid-template-columns:minmax(0,1fr);gap:48px}
  .hero-text{max-width:720px}
  .sample-stack{max-width:560px}
}
@media (max-width:719px){
  .hero{padding-block:40px 56px}
  .hero-text{gap:22px}
  .hero .lead{font-size:17px}
  .hero .btn{width:100%}
  .hero-grid{gap:32px}
  .sample-stack{gap:16px}
  .sample-stack>:nth-child(n){margin-left:0}
  .sc-word{font-size:28px}
  .form{font-size:20px}
}

/* home: apps */
.app-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;align-items:stretch}
.app-card{padding:32px;display:flex;flex-direction:column;gap:20px}
.app-icon{display:block;flex-shrink:0}
.ac-head{display:flex;flex-direction:column;gap:8px}
.ac-head h3{font-size:28px}
.ac-head h3 a{text-decoration:none}
.ac-head p{color:var(--muted);font-size:16px;line-height:1.5}
.checks{margin:0;padding:0;list-style:none;display:flex;flex-direction:column;gap:10px}
.checks li{display:flex;gap:10px;align-items:flex-start;font-size:15px;line-height:1.45}
.checks svg{flex-shrink:0;margin-top:1px}
.ac-foot{margin-top:auto;padding-top:8px;display:flex;flex-direction:column;gap:20px}
.more{font-weight:600;font-size:15px;text-decoration:none;align-self:flex-start}
.more:hover{text-decoration:underline}
@media (max-width:1099px){.app-grid{grid-template-columns:minmax(0,1fr);max-width:640px}}
@media (max-width:719px){.app-card{padding:24px}}

/* home: how */
.how{padding-block:112px}
.steps{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:48px}
.step{display:flex;flex-direction:column;gap:12px;padding-top:24px;border-top:1px solid var(--line)}
.step .num{font-family:var(--serif);font-size:44px;color:var(--muted);line-height:1.2}
.step h3{font-size:26px}
.step p{color:var(--muted);font-size:16px;line-height:1.6}
@media (max-width:899px){.how{padding-block:64px}.steps{grid-template-columns:minmax(0,1fr);gap:28px}.step .num{font-size:32px}.step h3{font-size:22px}}

.maker{padding:56px 64px;border-radius:28px;background:var(--card);border:1px solid var(--line);display:flex;justify-content:space-between;align-items:center;gap:48px}
.maker>div:first-child{display:flex;flex-direction:column;gap:12px}
.maker h2{font-size:34px}
.maker p{color:var(--muted);font-size:17px;line-height:1.6;max-width:640px}
.maker .stores{flex-shrink:0}
@media (max-width:899px){.maker{flex-direction:column;align-items:flex-start;padding:32px 24px;border-radius:24px;gap:20px}.maker h2{font-size:24px}.maker p{font-size:15px}}

.faq-band{padding-block:112px 120px}
.faq-grid{display:flex;gap:96px}
.faq-aside{display:flex;flex-direction:column;gap:16px;width:360px;flex-shrink:0}
.faq-aside h2{font-size:clamp(32px,3.4vw,48px);letter-spacing:-.015em}
.faq-aside p{color:var(--muted);font-size:16px;line-height:1.6}
.faq-aside a{font-weight:600}
.faq{flex:1 1 0;border-top:1px solid var(--line)}
.qa{border-bottom:1px solid var(--line);padding:22px 0}
.qa summary{list-style:none;cursor:pointer;display:flex;justify-content:space-between;align-items:baseline;gap:24px;font-family:var(--serif);font-size:22px;font-weight:600;line-height:1.3}
.qa summary::-webkit-details-marker{display:none}
.qa summary::after{content:"+";font-family:var(--sans);font-weight:400;font-size:26px;line-height:1;color:var(--muted);flex-shrink:0}
.qa[open] summary::after{content:"−"}
.qa summary:hover{color:var(--accent)}
.qa p{margin-top:12px;color:var(--muted);font-size:16px;line-height:1.6;max-width:720px}
@media (max-width:1023px){.faq-band{padding-block:64px 72px}.faq-grid{flex-direction:column;gap:24px}.faq-aside{width:auto}.qa summary{font-size:20px}}

/* app pages */
.app-hero{background:var(--tint);padding-block:32px 96px}
.crumb{font-size:14px;color:var(--muted);margin-bottom:40px}
.crumb a{color:var(--muted)}
.crumb [aria-current]{color:var(--ink)}
.ah-grid{display:grid;grid-template-columns:minmax(0,620px) minmax(0,560px);justify-content:space-between;align-items:center;gap:64px}
.ah-text{display:flex;flex-direction:column;gap:28px}
.app-id{display:flex;align-items:center;gap:18px}
.app-id>div{display:flex;flex-direction:column;gap:4px}
.app-name{font-family:var(--serif);font-size:22px;font-weight:600}
.app-by{color:var(--muted);font-size:15px}
.app-hero h1{font-size:clamp(38px,4.2vw,60px);line-height:1.06;letter-spacing:-.02em}
.app-hero .lead{font-size:19px;line-height:1.6}
.phones{position:relative;width:100%;max-width:560px;aspect-ratio:560/790;justify-self:end}
.phone{position:absolute;width:57.143%;aspect-ratio:320/728;border:10px solid var(--ink);border-radius:48px;background:var(--paper);overflow:hidden;box-shadow:0 40px 60px -40px rgba(28,27,24,.6)}
.phone img{display:block;width:100%;height:100%;object-fit:cover;object-position:top}
.phone.back{right:0;top:0}
.phone.front{left:0;top:7.848%}
@media (max-width:1279px){
  .ah-grid{grid-template-columns:minmax(0,1fr);gap:48px}
  .ah-text{max-width:720px}
  .phones{justify-self:center}
}
@media (max-width:719px){
  .app-hero{padding-block:20px 56px}
  .crumb{margin-bottom:24px}
  .ah-text{gap:22px}
  .app-id .app-icon{width:56px;height:56px}
  .app-hero .lead{font-size:17px}
  .phone{border-width:7px;border-radius:34px}
}

.feat-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
.feat{padding:28px;display:flex;flex-direction:column;gap:10px}
.feat h3{font-size:22px}
.feat p{color:var(--muted);font-size:16px;line-height:1.6}
@media (max-width:1099px){.feat-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (max-width:719px){.feat-grid{grid-template-columns:minmax(0,1fr);gap:14px}.feat{padding:22px}}

.pills{list-style:none;margin:0;padding:0;display:flex;gap:8px;flex-wrap:wrap}
.pills li{display:inline-flex;align-items:center;min-height:44px;padding:0 18px;border-radius:999px;background:var(--card);border:1px solid var(--line);font-size:16px;font-weight:500}
.modes{display:flex;align-items:center;gap:20px;flex-wrap:wrap}
.eq{display:inline-flex;align-items:center;gap:16px;white-space:nowrap}
.mrow{display:flex;flex-direction:column;gap:10px}
.mrow>p{font-size:13px;color:var(--muted)}
.op{font-family:var(--serif);font-size:28px;color:var(--acc)}
.total{font-family:var(--serif);font-size:56px;font-weight:600;color:var(--acc);line-height:1}
@media (max-width:719px){.modes{gap:14px}.pills li{font-size:15px;min-height:40px;padding:0 14px}.total{font-size:44px}}

.taste{display:flex;gap:96px}
.taste-aside{display:flex;flex-direction:column;gap:14px;width:380px;flex-shrink:0}
.taste-aside h2{font-size:clamp(32px,3.1vw,44px);line-height:1.12}
.taste-aside p{color:var(--muted);font-size:16px;line-height:1.6}
.samples{flex:1 1 0;margin:0;border-top:1px solid var(--line)}
.srow{display:flex;justify-content:space-between;align-items:baseline;gap:24px;padding:20px 0;border-bottom:1px solid var(--line)}
.srow dt{font-family:var(--serif);font-size:26px;font-weight:600}
.srow dd{margin:0;color:var(--muted);font-size:17px;text-align:right}
@media (max-width:1023px){.taste{flex-direction:column;gap:28px}.taste-aside{width:auto}}
@media (max-width:719px){.srow{flex-direction:column;gap:4px}.srow dt{font-size:22px}.srow dd{text-align:left;font-size:16px}}

.cmp-card{padding:16px 32px 8px;overflow-x:auto}
.cmp{width:100%;border-collapse:collapse;font-size:17px}
.cmp th,.cmp td{text-align:center;font-weight:400}
.cmp thead th{padding:8px 0 14px;font-size:13px;font-weight:600;letter-spacing:.1em;text-transform:uppercase;color:var(--muted);width:220px}
.cmp thead th.pro-h{color:var(--accent)}
.cmp thead th.cmp-title{width:auto;text-align:left;font-family:var(--serif);font-size:22px;letter-spacing:0;text-transform:none;color:var(--ink)}
.cmp tbody th{text-align:left}
.cmp tbody th,.cmp tbody td{height:60px;border-top:1px solid var(--line);padding:8px 0}
.cmp tbody td{color:var(--muted)}
.cmp tbody td.pro{font-weight:600}
.price-row{display:flex;justify-content:space-between;align-items:center;gap:32px;margin-top:40px}
.price-row p{font-size:17px;line-height:1.6;max-width:720px}
@media (max-width:899px){
  .price-row{flex-direction:column;align-items:flex-start;gap:20px;margin-top:28px}
}
@media (max-width:719px){
  .cmp-card{padding:8px 16px 4px}
  .cmp{font-size:15px}
  .cmp thead th{width:auto;padding-inline:6px;letter-spacing:.04em;font-size:11px}
  .cmp thead th.cmp-title{font-size:18px}
  .cmp tbody th{padding-right:8px}
  .cmp tbody td{padding-inline:6px}
  .price-row p{font-size:16px}
}

.more-band{padding-block:var(--band) 112px}
.more-h{font-size:36px;margin-bottom:32px}
.others{display:flex;gap:20px}
.other{flex:1 1 0;padding:28px;display:flex;gap:20px;align-items:center;text-decoration:none;color:var(--ink)}
.other:hover{border-color:#C9BFAC;color:var(--ink)}
.other>span{display:flex;flex-direction:column;gap:4px}
.o-name{font-family:var(--serif);font-size:22px;font-weight:600}
.o-tag{color:var(--muted);font-size:15px}
@media (max-width:899px){.others{flex-direction:column;gap:14px}.more-h{font-size:28px;margin-bottom:20px}.more-band{padding-block:var(--band)}.other{padding:20px}}

/* doc pages: support + legal */
.doc{display:grid;grid-template-columns:240px minmax(0,780px);gap:96px;padding-block:80px 120px}
.toc{display:flex;flex-direction:column;gap:4px;position:sticky;top:24px;align-self:start;max-height:calc(100vh - 48px);overflow:auto}
.toc-h{font-size:12px;font-weight:600;letter-spacing:.08em;text-transform:uppercase;color:var(--muted);padding-bottom:8px}
.toc a{text-decoration:none;font-size:15px;color:var(--muted);padding:6px 0;line-height:1.35}
.toc a:hover{color:var(--accent)}
.doc-main{display:flex;flex-direction:column;gap:36px;min-width:0}
.doc-head{display:flex;flex-direction:column;gap:16px;padding-bottom:12px}
.doc-head h1{font-size:clamp(40px,4vw,56px);letter-spacing:-.02em;line-height:1.1}
.doc-head>p:last-child{color:var(--muted);font-size:18px;line-height:1.6}
.email-card{padding:32px;display:flex;justify-content:space-between;align-items:center;gap:32px}
.ec-t{font-family:var(--serif);font-size:24px;font-weight:600}
.ec-m{color:var(--muted);font-size:16px;margin-top:6px;overflow-wrap:anywhere}
.faq-h{font-size:32px;margin-top:24px}
.lsec{display:flex;flex-direction:column;gap:12px;padding-bottom:36px;border-bottom:1px solid var(--line)}
.lsec h2{font-size:26px;line-height:1.25}
.lsec p,.lsec ul{color:var(--muted);font-size:17px;line-height:1.7}
.lsec ul{margin:0;padding:0;list-style:none;display:flex;flex-direction:column;gap:10px}
.lsec li{position:relative;padding-left:18px}
.lsec li::before{content:"";position:absolute;left:0;top:.8em;width:6px;height:6px;border-radius:3px;background:var(--ink)}
@media (max-width:1023px){.doc{grid-template-columns:minmax(0,1fr);gap:0;padding-block:48px 72px}.toc{display:none}}
@media (max-width:719px){.email-card{flex-direction:column;align-items:flex-start;padding:24px;gap:20px}.doc-head>p:last-child{font-size:17px}.lsec h2{font-size:22px}.lsec p,.lsec ul{font-size:16px}.faq-h{font-size:26px;margin-top:8px}}

.nf{padding-block:120px 160px;display:flex;flex-direction:column;gap:20px;max-width:780px}
.nf h1{font-size:clamp(40px,5vw,64px);letter-spacing:-.02em}
.nf-langs{font-size:18px}

/* footer */
.site-footer{background:var(--ink);color:var(--paper);padding-block:64px 40px}
.fcols{display:flex;gap:96px}
.fbrand{display:flex;flex-direction:column;gap:16px;max-width:360px}
.site-footer .brand,.site-footer .brand:hover{color:var(--paper)}
.fbrand p{color:var(--foot-muted);font-size:15px;line-height:1.6}
.fcol{display:flex;flex-direction:column;gap:14px}
.fcol a{color:var(--paper);text-decoration:none;font-size:15px}
.fcol a:hover{color:var(--accent-2)}
.fcol .langs a{font-size:13px}
.en-mark{color:var(--foot-muted);font-size:13px}
.fhead{font-size:12px;font-weight:600;letter-spacing:.08em;text-transform:uppercase;color:var(--foot-muted)}
.fbottom{border-top:1px solid #3A3731;margin-top:48px;padding-top:24px;color:var(--foot-muted);font-size:13px;display:flex;flex-direction:column;gap:8px}
.fbottom .tm{font-size:12px;color:#8E887C;max-width:900px;line-height:1.5}
.site-footer :focus-visible{outline-color:var(--accent-2)}
@media (max-width:1099px){.fcols{flex-wrap:wrap;gap:40px 64px}.fbrand{flex-basis:100%}}
@media (max-width:719px){.site-footer{padding-block:48px 32px}.fcols{flex-direction:column;gap:40px}}