/* Japanese in a Flash! — site stylesheet (self-hosted font only; no third-party requests) */
@font-face{font-family:"Geist";src:url("/assets/fonts/Geist-Variable.woff2") format("woff2");font-weight:100 900;font-style:normal;font-display:swap}
@font-face{font-family:"Inter";src:url("/assets/fonts/Inter-Variable.woff2") format("woff2");font-weight:100 900;font-style:normal;font-display:swap}
:root{--paper:#E7E1D6;--card:#FBF8F3;--ink:#1C1915;--muted:#696258;--fire:#C01B00;--yellow:#FFD60A;--y1:#F0D84A;--y2:#E4CC38;
  --jp:"Hiragino Sans","Hiragino Kaku Gothic ProN","Noto Sans CJK JP","Noto Sans JP","Yu Gothic",sans-serif}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{background:var(--paper);-webkit-text-size-adjust:100%;text-size-adjust:100%;scroll-behavior:smooth}
body{font-family:"Geist",system-ui,-apple-system,sans-serif;color:var(--ink);-webkit-font-smoothing:antialiased;line-height:1.5;overflow-x:hidden}
[lang=ja]{font-family:var(--jp)}
a{color:inherit}
a:focus-visible,summary:focus-visible{outline:3px solid var(--fire);outline-offset:3px;border-radius:6px}
img{display:block;max-width:100%;height:auto}
picture{display:block}
.wrap{max-width:1200px;margin:0 auto;padding-left:48px;padding-right:48px}
.skip{position:absolute;left:-9999px;top:8px;background:var(--ink);color:#fff;padding:8px 14px;border-radius:8px;z-index:10}
.skip:focus{left:12px}
section[id]{scroll-margin-top:16px}

/* nav */
.nav{display:flex;align-items:center;justify-content:space-between;height:84px;position:relative;z-index:5}
.brand{display:flex;align-items:center;gap:12px;font-weight:700;font-size:18px;letter-spacing:-.01em;text-decoration:none}
.brand img{width:36px;height:36px;border-radius:9px;box-shadow:0 0 0 1px rgba(0,0,0,.08)}
.links{display:flex;gap:32px;font-size:15px;font-weight:500}
.links a{text-decoration:none;color:#3A352E}
.links a:hover{color:var(--fire)}
.links a[aria-current=page]{color:var(--ink);font-weight:650}
.menu{display:none;position:relative}
.menu summary{list-style:none;cursor:pointer;width:44px;height:44px;border-radius:22px;background:var(--card);display:flex;align-items:center;justify-content:center;box-shadow:0 0 0 1px rgba(60,40,20,.08)}
.menu summary::-webkit-details-marker{display:none}
.menu .drop{position:absolute;right:0;top:54px;min-width:210px;background:var(--card);border-radius:18px;padding:8px;box-shadow:0 18px 40px rgba(40,30,20,.18),0 0 0 1px rgba(60,40,20,.08);display:flex;flex-direction:column}
.menu .drop a{display:block;padding:12px 14px;border-radius:12px;text-decoration:none;font-size:16px;font-weight:550}
.menu .drop a:hover{background:#F1ECE3}

/* App Store badge (.badge link). Until the app is listed the page shows a non-link .soon-chip instead; set-app-store-id.py swaps it for the real badge link. */
.badge{display:inline-flex;align-items:center;gap:10px;height:56px;padding:0 22px 0 16px;border-radius:12px;background:#000;color:#fff;text-decoration:none;flex:none}
.soon-chip{display:inline-flex;align-items:center;gap:10px;height:56px;padding:0 22px 0 16px;border-radius:12px;box-shadow:inset 0 0 0 1.5px var(--ink);color:var(--ink);flex:none;cursor:default;-webkit-user-select:none;user-select:none}
.soon-chip .soon-apple{width:24px;height:29px;flex:none}
.soon-chip span{display:flex;flex-direction:column;line-height:1.05}
.soon-chip small{font-size:11px;font-weight:500;letter-spacing:.01em;white-space:nowrap}
.soon-chip b{font-size:22px;font-weight:550;letter-spacing:-.02em;white-space:nowrap}
.final .soon-chip{color:#fff;box-shadow:inset 0 0 0 1.5px #fff;background:rgba(0,0,0,.12)}
.badge svg{width:24px;height:29px}
.badge span{display:flex;flex-direction:column;line-height:1.05}
.badge small{font-size:10.5px;font-weight:400;letter-spacing:.01em}
.badge b{font-size:22px;font-weight:550;letter-spacing:-.02em}

/* hero */
.hero{display:grid;grid-template-columns:1.08fr 1fr;gap:56px;align-items:center;padding:40px 0 104px}
.name-card{background:var(--card);border-radius:32px;padding:52px 52px 44px;transform:rotate(-2.5deg);box-shadow:0 24px 60px rgba(40,30,20,.12)}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:14px;font-weight:600;color:var(--fire);letter-spacing:.02em;text-transform:uppercase}
.eyebrow i{width:8px;height:8px;border-radius:4px;background:var(--fire)}
h1{font-size:64px;line-height:1.02;font-weight:800;letter-spacing:-.035em;margin-top:18px}
h1 em{font-style:normal;color:var(--fire)}
.lede{font-size:20px;line-height:1.45;color:#3A352E;margin-top:20px;max-width:30em}
.cta-row{display:flex;align-items:center;gap:20px;margin-top:32px;flex-wrap:wrap}
.homename{display:flex;align-items:center;gap:12px;font-size:14px;line-height:1.35;color:var(--muted)}
.homename img{width:40px;height:40px;border-radius:10px;flex:none}
.homename b{color:var(--ink);font-weight:600}

.stack{position:relative;height:460px;max-width:440px;width:100%;justify-self:center}
.stack .deck{position:absolute;inset:0;border-radius:32px}
.stack .far{background:var(--y2);transform:translate(34px,30px) rotate(-3deg)}
.stack .near{background:var(--y1);transform:translate(17px,15px) rotate(3deg);box-shadow:0 10px 24px rgba(40,30,20,.08)}
.study{position:absolute;inset:0;border-radius:32px;background:var(--fire);color:#fff;transform:rotate(2deg);
  display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;box-shadow:0 24px 60px rgba(120,20,0,.25)}
.study .hw{font:700 96px/1 var(--jp);color:var(--yellow);position:relative}
.study .spk{position:absolute;left:calc(100% + 14px);top:50%;margin-top:-22px;width:44px;height:44px;border-radius:22px;background:rgba(255,255,255,.16);display:flex;align-items:center;justify-content:center}
.study .rd{font:500 28px/1.2 var(--jp);margin-top:22px}
.study .mn{font-size:24px;font-weight:650;margin-top:10px;letter-spacing:-.01em}
.study .rule{width:40px;height:2px;background:rgba(255,255,255,.3);margin:26px 0 20px;border-radius:1px}
.study .ex{font:400 17px/1.5 var(--jp);color:rgba(255,255,255,.92);padding:0 28px}
.study .exen{font-size:15px;color:rgba(255,255,255,.7);margin-top:4px}

/* sections */
section{padding:96px 0}
.kicker{font-size:14px;font-weight:600;letter-spacing:.06em;text-transform:uppercase;color:var(--fire)}
h2{font-size:44px;line-height:1.08;font-weight:800;letter-spacing:-.03em;margin-top:12px;max-width:24em;text-wrap:balance}
.sub{font-size:19px;color:#3A352E;margin-top:14px;max-width:34em}

.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:40px;margin-top:56px}
.step{display:flex;flex-direction:column;align-items:center;min-width:0}
.phone{width:290px;max-width:100%;padding:9px;border-radius:50px;background:#1C1915;box-shadow:0 30px 60px rgba(40,30,20,.20),inset 0 0 0 1.5px #3a342d}
.phone img{width:100%;border-radius:42px}
.step h3{display:flex;align-items:center;gap:12px;font-size:22px;font-weight:700;letter-spacing:-.015em;margin-top:32px;align-self:stretch;padding:0 12px}
.step h3 i{font-style:normal;width:32px;height:32px;border-radius:16px;background:var(--fire);color:#fff;font-size:16px;display:flex;align-items:center;justify-content:center;flex:none}
.step p{font-size:17px;color:#3A352E;margin-top:8px;align-self:stretch;padding:0 12px 0 56px}

.band{background:var(--card)}
.sets{display:flex;flex-wrap:wrap;gap:12px;margin-top:36px;list-style:none}
.chip{display:inline-flex;align-items:center;gap:10px;height:48px;padding:0 20px;border-radius:24px;background:#fff;box-shadow:0 0 0 1px rgba(60,40,20,.10);font-size:17px;font-weight:550}
.chip.star{background:var(--fire);color:#fff;box-shadow:none}
.chip small{font-size:14px;font-weight:450;opacity:.7}
.more-sets{font-size:16px;color:var(--muted);margin-top:20px;max-width:52em}
.feats{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;margin-top:56px}
.feat{background:#fff;border-radius:24px;padding:28px 26px 30px;box-shadow:0 0 0 1px rgba(60,40,20,.07)}
.feat .ic{width:48px;height:48px;border-radius:14px;background:#FCE3DD;display:flex;align-items:center;justify-content:center}
.feat h3{font-size:19px;font-weight:700;margin-top:18px;letter-spacing:-.01em}
.feat p{font-size:16px;color:#3A352E;margin-top:6px;line-height:1.45}

.privacy{background:var(--ink);color:#fff;border-radius:40px;padding:72px 72px 64px;display:grid;grid-template-columns:1fr 1.1fr;gap:64px;align-items:start}
.privacy .kicker{color:var(--yellow)}
.privacy h2{color:#fff}
.privacy .sub{color:rgba(255,255,255,.75)}
.privacy ul{list-style:none;display:flex;flex-direction:column;gap:14px}
.privacy li{display:flex;gap:16px;align-items:flex-start;background:rgba(255,255,255,.06);border-radius:20px;padding:20px 22px;font-size:18px;line-height:1.4}
.privacy li b{display:block;font-weight:650}
.privacy li span{color:rgba(255,255,255,.7);font-size:16px}
.tick{width:28px;height:28px;border-radius:14px;background:var(--yellow);flex:none;display:flex;align-items:center;justify-content:center;margin-top:1px}
.privacy .plink{display:inline-block;margin-top:28px;font-size:17px;font-weight:600;color:#fff;text-underline-offset:4px}

.faq{display:grid;grid-template-columns:1fr 1fr;gap:20px 40px;margin-top:44px}
.qa{border-top:1.5px solid rgba(60,40,20,.15);padding-top:22px}
.qa h3{font-size:20px;font-weight:700;letter-spacing:-.01em}
.qa p{font-size:17px;color:#3A352E;margin-top:8px}
.qa a{text-underline-offset:3px}

.final{background:var(--fire);color:#fff;border-radius:40px;padding:64px 72px;display:flex;align-items:center;justify-content:space-between;gap:40px}
.final h2{color:#fff;margin:0;font-size:46px}
.final p{font-size:19px;color:rgba(255,255,255,.82);margin-top:10px}
.final .cta{margin-top:26px}
.final .hw{font:700 120px/1 var(--jp);color:var(--yellow);transform:rotate(-6deg)}

footer{padding:56px 0 72px;font-size:14px;color:var(--muted);line-height:1.7}
footer .row{display:flex;justify-content:space-between;align-items:flex-start;gap:32px;border-top:1.5px solid rgba(60,40,20,.15);padding-top:32px}
footer .brand{font-size:16px}
footer .brand img{width:28px;height:28px;border-radius:7px}
footer .legal{margin-top:12px}
footer .flinks{display:flex;flex-wrap:wrap;gap:12px 24px;font-weight:550;color:var(--ink);white-space:nowrap}

/* document pages (privacy, support) */
.doc{max-width:720px;padding-top:24px;padding-bottom:24px}
.doc h1{font-size:44px;margin-top:10px}
.updated{font-size:15px;color:var(--muted);margin-top:8px}
.short{background:var(--ink);color:#fff;border-radius:28px;padding:26px 24px 24px;margin-top:28px}
.short h2{font-size:20px;color:#fff;margin:0;letter-spacing:-.01em}
.short ul{list-style:none;margin-top:16px;display:flex;flex-direction:column;gap:12px}
.short li{display:flex;gap:12px;align-items:flex-start;font-size:16.5px;line-height:1.4}
.short .tick{width:24px;height:24px}
.doc h2.sec{font-size:21px;font-weight:700;letter-spacing:-.015em;margin-top:36px;max-width:none}
.doc p{font-size:17px;line-height:1.55;color:#2E2A24;margin-top:8px}
.doc p a{text-underline-offset:3px}
.doc .lead{font-size:19px;color:var(--ink);margin-top:24px}
.mail{display:inline-flex;align-items:center;height:48px;padding:0 20px;border-radius:24px;background:var(--card);box-shadow:0 0 0 1px rgba(60,40,20,.1);font-weight:600;text-decoration:none;margin-top:12px;max-width:100%}
.doc .faq{grid-template-columns:1fr;gap:4px;margin-top:20px}
.doc .qa{padding:20px 0 14px}
.doc .qa h3{font-size:19px}
.doc .qa p{font-size:17px}
.fix{background:var(--card);border-radius:24px;padding:24px;margin-top:32px;box-shadow:0 0 0 1px rgba(60,40,20,.08)}
.fix h2{font-size:21px;margin:0;letter-spacing:-.015em}
.fix p{margin-top:8px}

/* ---------- mid widths ---------- */
@media (max-width:1060px){
  .links{gap:22px}
  .hero{grid-template-columns:1fr;gap:56px}
  .stack{max-width:420px}
  .steps{gap:24px}
  .step p{padding-left:12px}
  .feats{grid-template-columns:1fr 1fr}
  .privacy{grid-template-columns:1fr;gap:36px;padding:56px 48px}
  .final{padding:56px 48px}
}
@media (max-width:900px){
  .links{display:none}
  .menu{display:block}
}

/* ---------- mobile ---------- */
@media (max-width:720px){
  .wrap{padding-left:20px;padding-right:20px}
  .nav{height:64px}
  .brand{font-size:16px;gap:10px}
  .brand img{width:32px;height:32px;border-radius:8px}
  .hero{grid-template-columns:1fr;gap:44px;padding:14px 0 72px}
  .name-card{padding:28px 24px 26px;border-radius:28px;transform:rotate(-1deg)}
  .eyebrow{font-size:12.5px}
  h1{font-size:42px;margin-top:12px}
  .lede{font-size:17px;margin-top:12px}
  .cta-row{flex-direction:column;align-items:flex-start;gap:14px;margin-top:22px}
  .homename{font-size:13.5px}
  .homename img{width:34px;height:34px;border-radius:8px}
  .stack{height:330px;max-width:330px;margin-right:30px}
  .stack .far{transform:translate(26px,22px) rotate(-3deg)}
  .stack .near{transform:translate(13px,11px) rotate(3deg)}
  .study .hw{font-size:72px}
  .study .spk{width:40px;height:40px;margin-top:-20px;left:calc(100% + 10px)}
  .study .rd{font-size:22px;margin-top:16px}
  .study .mn{font-size:19px;margin-top:6px}
  .study .rule{margin:18px 0 14px}
  .study .ex{font-size:14px;padding:0 20px}
  .study .exen{font-size:13px}
  section{padding:64px 0}
  .kicker{font-size:12.5px}
  h2{font-size:32px}
  .sub{font-size:17px}
  .steps{display:flex;overflow-x:auto;gap:20px;margin:36px -20px 0;padding:0 20px 8px;scroll-snap-type:x mandatory;scroll-padding:0 20px}
  .step{flex:0 0 250px;scroll-snap-align:start;align-items:flex-start}
  .phone{width:230px;border-radius:40px;padding:7px}
  .phone img{border-radius:34px}
  .step h3{font-size:19px;margin-top:22px;padding:0}
  .step h3 i{width:28px;height:28px;font-size:14px}
  .step p{font-size:15.5px;padding:0 0 0 40px}
  .sets{gap:10px;margin-top:26px}
  .chip{height:42px;padding:0 16px;font-size:15.5px}
  .chip small{font-size:13px}
  .more-sets{font-size:15px}
  .feats{grid-template-columns:1fr 1fr;gap:12px;margin-top:36px}
  .feat{padding:20px 18px 22px;border-radius:20px}
  .feat .ic{width:42px;height:42px;border-radius:12px}
  .feat h3{font-size:17px;margin-top:14px}
  .feat p{font-size:14.5px}
  .privacy{grid-template-columns:1fr;gap:28px;padding:40px 22px 36px;border-radius:30px;margin:0 -4px}
  .privacy li{font-size:16.5px;padding:16px 16px;gap:14px;border-radius:16px}
  .privacy li span{font-size:14.5px}
  .tick{width:26px;height:26px}
  .faq{grid-template-columns:1fr;gap:4px;margin-top:28px}
  .qa{padding:18px 0 14px}
  .qa h3{font-size:18px}
  .qa p{font-size:16px}
  .final{flex-direction:column;align-items:flex-start;padding:40px 24px;border-radius:30px;gap:24px;position:relative;overflow:hidden}
  .final h2{font-size:32px}
  .final p{font-size:17px}
  .final .hw{position:absolute;right:22px;top:30px;font-size:60px}
  .final .txt{padding-right:70px}
  footer .row{flex-direction:column;gap:18px}
  footer .flinks{gap:20px;flex-wrap:wrap}
  .doc h1{font-size:38px}
  .doc h2.sec{font-size:19px;margin-top:30px}
  .doc p,.doc .qa p{font-size:16px}
  .doc .lead{font-size:17.5px}
  .fix{padding:20px 18px}
}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}

/* ---------- v2: spaced-repetition sections ---------- */
body{font-family:"Inter","Geist",system-ui,-apple-system,sans-serif}
h1,h2,h3,h4,.kicker,.eyebrow,.brand,.badge,.pitch,.chip,.lvl-name,.preset b,.seg span,.qa h3,.soon-chip,.final h2{font-family:"Geist","Inter",system-ui,sans-serif}

/* hero pitch */
.pitch{font-size:30px;line-height:1.15;font-weight:750;letter-spacing:-.025em;margin-top:18px;color:var(--ink)}
.pitch mark{background:linear-gradient(transparent 58%, #FFE36B 58%, #FFE36B 92%, transparent 92%);color:inherit;padding:0 2px}
.name-card .lede{margin-top:14px;font-size:18px}

/* section intros */
.intro{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:end}
.intro .sub{margin-top:0}

/* levels panel (mirrors the app's progress strip) */
.levels{margin-top:44px;background:var(--fire);color:#fff;border-radius:36px;padding:40px 40px 34px;position:relative;box-shadow:0 24px 60px rgba(120,20,0,.18)}
.lvl-row{display:grid;grid-template-columns:repeat(5,1fr);gap:18px;position:relative}
.lvl{position:relative}
.lvl-name{font-size:19px;font-weight:700;letter-spacing:-.01em}
.lvl-bar{height:8px;border-radius:4px;background:#fff;margin:10px 0 14px;position:relative}
.lvl-bar i{position:absolute;left:2px;right:2px;top:2px;bottom:2px;border-radius:2px}
.lvl-often{display:flex;align-items:center;gap:5px;font-size:12.5px;font-weight:600;letter-spacing:.04em;text-transform:uppercase;color:rgba(255,255,255,.7)}
.dots{display:inline-flex;gap:4px;margin-left:4px}
.dots b{width:9px;height:9px;border-radius:5px;background:var(--yellow)}
.dots b.off{background:rgba(255,255,255,.22)}
.lvl p{font-size:15.5px;line-height:1.45;color:rgba(255,255,255,.92);margin-top:12px}
.lvl .up{position:absolute;right:-17px;top:20px;width:16px;height:16px;color:var(--yellow)}
.loop{margin-top:26px;display:flex;align-items:center;gap:14px;font-size:16px;font-weight:600}
.loop .track{flex:1;height:2px;background:repeating-linear-gradient(90deg,var(--yellow) 0 8px,transparent 8px 14px);position:relative}
.loop .track:before{content:"";position:absolute;left:-2px;top:-6px;border:7px solid transparent;border-right:10px solid var(--yellow);border-left:0}
.loop .pill{background:rgba(0,0,0,.18);border-radius:999px;padding:8px 16px;white-space:nowrap}
.loop .pill b{color:var(--yellow)}
.legend{font-size:14px;color:var(--muted);margin-top:14px}

.explain{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;margin-top:28px}
.ex-card{background:var(--card);border-radius:24px;padding:26px 24px 28px;box-shadow:0 0 0 1px rgba(60,40,20,.07)}
.ex-card h3{font-size:19px;font-weight:700;letter-spacing:-.015em;margin-top:16px}
.ex-card p{font-size:15.5px;color:#3A352E;margin-top:8px;line-height:1.5}
.ex-card .ic{width:44px;height:44px;border-radius:13px;background:#FCE3DD;display:flex;align-items:center;justify-content:center}

/* difficulty */
.diff{display:grid;grid-template-columns:1fr 460px;gap:64px;align-items:center}
.presets{margin-top:30px;border-radius:22px;background:var(--card);box-shadow:0 0 0 1px rgba(60,40,20,.08);overflow:hidden}
.preset{display:grid;grid-template-columns:1.1fr 1fr 1fr;align-items:center;padding:16px 22px;font-size:16px}
.preset+.preset{border-top:1px solid rgba(60,40,20,.08)}
.preset.head{background:#F1ECE3;font-size:13px;font-weight:600;letter-spacing:.04em;text-transform:uppercase;color:var(--muted);padding:12px 22px}
.preset b{font-size:17px;font-weight:700}
.preset em{font-style:normal;font-size:12px;font-weight:600;background:var(--fire);color:#fff;border-radius:6px;padding:2px 7px;margin-left:8px;vertical-align:2px}
.preset .num{font-variant-numeric:tabular-nums;font-weight:550}
.diff-note{font-size:15px;color:var(--muted);margin-top:14px}

.settings{background:#F2F2F7;border-radius:36px;padding:26px 20px 24px;box-shadow:0 30px 60px rgba(40,30,20,.18),0 0 0 9px #1C1915;font-family:-apple-system,"Inter",sans-serif;color:#000;margin:9px}
.settings .ttl{text-align:center;font-weight:600;font-size:17px;margin-bottom:18px}
.settings .lab{font-size:17px;font-weight:700;color:#3b4459;margin:0 4px 8px}
.seg{display:flex;background:#E3E3E8;border-radius:9px;padding:2px}
.seg span{flex:1;text-align:center;font-size:14px;font-weight:500;padding:6px 0;border-radius:7px;color:#000}
.seg span.on{background:#fff;box-shadow:0 1px 3px rgba(0,0,0,.14);font-weight:600}
.grp{margin-top:22px}
.grp .hd{font-size:13px;color:#6d6d72;text-transform:uppercase;letter-spacing:.02em;margin:0 6px 7px}
.grp .cell{background:#fff;border-radius:12px;height:52px;display:flex;align-items:center;gap:12px;padding:0 16px;font-size:16px}
.sl{flex:1;height:4px;border-radius:2px;background:#E3E3E8;position:relative}
.sl i{position:absolute;left:0;top:0;bottom:0;border-radius:2px;background:var(--fire)}
.sl b{position:absolute;top:50%;width:26px;height:26px;margin:-13px 0 0 -13px;border-radius:13px;background:#fff;box-shadow:0 1px 4px rgba(0,0,0,.25),0 0 0 .5px rgba(0,0,0,.06)}
.sl.dis i{background:#c9c9ce}
.mm{font-weight:700;font-size:16px;min-width:20px;text-align:center}
.tg{width:51px;height:31px;border-radius:16px;background:#E3E3E8;position:relative;margin-left:auto}
.tg:after{content:"";position:absolute;left:2px;top:2px;width:27px;height:27px;border-radius:14px;background:#fff;box-shadow:0 2px 4px rgba(0,0,0,.2)}
.callout{font-size:13px;color:var(--muted);margin:6px 6px 0}

/* why it works */
.why{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:44px}
.why-card{background:#fff;border-radius:28px;padding:32px 30px 34px;box-shadow:0 0 0 1px rgba(60,40,20,.07)}
.why-card .n{font:800 15px/1 "Geist";width:40px;height:40px;border-radius:20px;background:var(--ink);color:var(--yellow);display:flex;align-items:center;justify-content:center}
.why-card h3{font-size:24px;font-weight:750;letter-spacing:-.02em;margin-top:20px;line-height:1.15}
.why-card p{font-size:16.5px;color:#3A352E;margin-top:10px}

/* compact privacy strip */
.pstrip{display:flex;align-items:center;gap:22px;background:var(--card);border-radius:22px;padding:18px 24px;box-shadow:0 0 0 1px rgba(60,40,20,.08)}
.pstrip .shield{width:40px;height:40px;border-radius:12px;background:var(--ink);display:flex;align-items:center;justify-content:center;flex:none}
.pstrip ul{list-style:none;display:flex;flex-wrap:wrap;gap:8px 22px;flex:1;font-size:15px;font-weight:550}
.pstrip li{display:flex;align-items:center;gap:7px}
.pstrip li:before{content:"";width:6px;height:6px;border-radius:3px;background:var(--fire)}
.pstrip a{font-size:15px;font-weight:650;white-space:nowrap;text-underline-offset:3px}

@media (max-width:720px){
  .pitch{font-size:24px;margin-top:12px}
  .name-card .lede{font-size:16px;margin-top:10px}
  .intro{grid-template-columns:1fr;gap:14px}
  .levels{padding:24px 20px 22px;border-radius:28px;margin-top:30px}
  .lvl-row{grid-template-columns:1fr;gap:0}
  .lvl{display:grid;grid-template-columns:96px 1fr;column-gap:14px;padding:14px 0;border-top:1px solid rgba(255,255,255,.14)}
  .lvl:first-child{border-top:0;padding-top:4px}
  .lvl-name{font-size:16.5px;grid-column:1;grid-row:1}
  .lvl-bar{grid-column:1;grid-row:2;margin:8px 0 0;height:7px}
  .lvl-often{grid-column:2;grid-row:1;font-size:11.5px;justify-content:flex-end}
  .lvl p{grid-column:2;grid-row:2 / span 2;margin-top:4px;font-size:14.5px}
  .lvl .up{display:none}
  .loop{margin-top:14px;font-size:14.5px}
  .loop .track{display:none}
  .loop .pill{white-space:normal;border-radius:16px;padding:10px 14px}
  .legend{font-size:13px}
  .explain{grid-template-columns:1fr;gap:10px;margin-top:20px}
  .ex-card{padding:18px 18px 20px;border-radius:20px;display:grid;grid-template-columns:38px 1fr;column-gap:14px}
  .ex-card .ic{width:38px;height:38px;border-radius:11px;grid-row:1 / span 2}
  .ex-card h3{font-size:17px;margin-top:6px}
  .ex-card p{font-size:15px;margin-top:4px}
  .diff{grid-template-columns:1fr;gap:36px}
  .presets{margin-top:22px}
  .preset{padding:13px 14px;font-size:14.5px;grid-template-columns:1fr .9fr .9fr}
  .preset.head{font-size:11px;padding:10px 14px}
  .preset b{font-size:15.5px}
  .preset em{display:table;font-size:10.5px;margin:4px 0 0;padding:2px 6px}
  .settings{margin:9px 14px;padding:22px 16px 20px;border-radius:32px}
  .why{grid-template-columns:1fr;gap:12px;margin-top:28px}
  .why-card{padding:24px 22px 26px;border-radius:24px}
  .why-card h3{font-size:21px;margin-top:14px}
  .why-card p{font-size:15.5px}
  .pstrip{flex-wrap:wrap;align-items:flex-start;gap:12px 14px;padding:18px 18px}
  .pstrip .shield{width:34px;height:34px;border-radius:10px}
  .pstrip ul{flex:1 1 220px;gap:6px 16px;font-size:14.5px}
  .pstrip a{flex-basis:100%;padding-left:48px;font-size:14.5px}
}
@media (max-width:1060px) and (min-width:721px){
  .diff{grid-template-columns:1fr;gap:40px}
  .settings{max-width:460px;width:calc(100% - 18px);justify-self:center}
  .explain{grid-template-columns:1fr 1fr}
  .levels{padding:32px 28px 28px}
  .lvl-row{gap:14px;grid-template-columns:repeat(5,minmax(0,1fr))}
  .lvl-often{flex-wrap:wrap;row-gap:6px}
  .lvl-name{font-size:17px}
  .lvl .up{right:-14px}
  .lvl p{font-size:14.5px}
  .why{grid-template-columns:1fr}
}

/* ---------- language switcher (English / 日本語) ---------- */
.links{margin-left:auto}
.lang{display:flex;align-items:center;gap:2px;padding:3px;margin-left:28px;border-radius:999px;background:var(--card);box-shadow:0 0 0 1px rgba(60,40,20,.08);flex:none}
.lang a{display:flex;align-items:center;height:32px;padding:0 13px;border-radius:999px;font-size:13.5px;font-weight:600;line-height:1;text-decoration:none;color:#3A352E;white-space:nowrap}
.lang a[lang=en]{font-family:"Geist","Inter",system-ui,-apple-system,sans-serif;letter-spacing:-.005em}
.lang a[lang=ja]{font-family:var(--jp)}
.lang a[aria-current]{background:var(--ink);color:#fff;cursor:default}
.lang a:not([aria-current]):hover{color:var(--fire)}
/* narrower: only the other language is shown, as a 44pt pill next to the menu button */
@media (max-width:1060px){
  .lang{padding:0;background:none;box-shadow:none;margin-left:22px}
  .lang a[aria-current]{display:none}
  .lang a{height:44px;padding:0 16px;font-size:14px;background:var(--card);box-shadow:0 0 0 1px rgba(60,40,20,.08)}
}
@media (max-width:900px){
  .lang{margin-left:auto}
  .menu{margin-left:10px}
}

/* ---------- Japanese pages (html lang="ja") ---------- */
/* Hiragino first so iOS never falls back through a Latin-only face for kana/kanji. */
html[lang=ja] body,
html[lang=ja] h1,html[lang=ja] h2,html[lang=ja] h3,html[lang=ja] h4,
html[lang=ja] .kicker,html[lang=ja] .eyebrow,html[lang=ja] .pitch,html[lang=ja] .chip,
html[lang=ja] .qa h3,html[lang=ja] .soon-chip,html[lang=ja] .badge,html[lang=ja] .final h2,
html[lang=ja] .preset b,html[lang=ja] .lvl-name{font-family:var(--jp)}
/* product name, app UI labels and other English bits keep the Latin faces */
html[lang=ja] [lang=en]{font-family:"Geist","Inter",system-ui,-apple-system,sans-serif}
html[lang=ja] .settings,html[lang=ja] .settings [lang=en]{font-family:-apple-system,"Inter",sans-serif}
html[lang=ja] body{line-height:1.7;line-break:strict}
html[lang=ja] h2,html[lang=ja] h3,html[lang=ja] .pitch,html[lang=ja] .doc h1{letter-spacing:.01em;font-feature-settings:"palt"}
/* headings break only at <wbr>/punctuation (phrase-level), with a safety net for very narrow screens */
html[lang=ja] h2,html[lang=ja] .pitch,html[lang=ja] .doc h1,html[lang=ja] .why-card h3,html[lang=ja] .feat h3,html[lang=ja] .ex-card h3,html[lang=ja] .step h3{word-break:keep-all;overflow-wrap:anywhere}
html[lang=ja] h2{line-height:1.32;font-weight:700}
html[lang=ja] h3{line-height:1.45;font-weight:700}
html[lang=ja] .pitch{font-size:28px;line-height:1.4;font-weight:700}
html[lang=ja] .kicker,html[lang=ja] .eyebrow{letter-spacing:.1em;text-transform:none}
html[lang=ja] .lede,html[lang=ja] .sub{line-height:1.8}
html[lang=ja] .doc h1{line-height:1.3;font-weight:700}
html[lang=ja] .chip{font-weight:600}
html[lang=ja] .soon-chip b{font-size:20px;font-weight:600;letter-spacing:.02em}
html[lang=ja] .soon-chip small{font-size:11px;letter-spacing:.02em}
html[lang=ja] .badge b{font-size:19px;font-weight:600;letter-spacing:.02em}
html[lang=ja] .lvl-often{letter-spacing:.04em}
html[lang=ja] .qa h3{line-height:1.5}
html[lang=ja] .why-card h3{line-height:1.4}
html[lang=ja] .final h2{line-height:1.3}
/* English-first example card in the Japanese hero */
.study .hw-en{font:700 84px/1 "Geist","Inter",system-ui,sans-serif;letter-spacing:-.03em;color:var(--yellow)}
.study .rd-ja{font:700 34px/1.2 var(--jp);margin-top:20px}
.study .rd-kana{font:500 17px/1.3 var(--jp);color:rgba(255,255,255,.82);margin-top:6px}
.study .ex-en{font:500 16.5px/1.45 "Geist","Inter",system-ui,sans-serif;color:rgba(255,255,255,.95);padding:0 30px}
.study .ex-ja{font:400 14.5px/1.6 var(--jp);color:rgba(255,255,255,.78);margin-top:6px;padding:0 30px}
.final .hw-en{font:700 96px/1 "Geist","Inter",system-ui,sans-serif;letter-spacing:-.03em;color:var(--yellow);transform:rotate(-6deg)}
/* "the app's menus are in English" note */
.note-en{display:flex;gap:14px;align-items:flex-start;margin-top:22px;padding:16px 18px;border-radius:18px;background:#F1ECE3;font-size:14.5px;line-height:1.65;color:#3A352E}
.note-en .i{flex:none;width:26px;height:26px;border-radius:13px;background:var(--ink);color:var(--yellow);font:700 14px/26px "Geist",sans-serif;text-align:center;margin-top:1px}
.note-en b{color:var(--ink)}
.step-note{font-size:14px;color:var(--muted);margin-top:22px;text-align:center}
.dir{display:grid;grid-template-columns:1fr 420px;gap:64px;align-items:center}
.dir-pair{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:30px}
.dir-card{background:var(--card);border-radius:22px;padding:22px 22px 20px;box-shadow:0 0 0 1px rgba(60,40,20,.08)}
.dir-card .tag{display:inline-block;font-size:12.5px;font-weight:700;letter-spacing:.06em;color:var(--fire)}
.dir-card .q{font:700 30px/1.15 "Geist","Inter",sans-serif;margin-top:12px;letter-spacing:-.02em}
.dir-card .q[lang=ja]{font-family:var(--jp);letter-spacing:0}
.dir-card .a{font-size:15px;color:var(--muted);margin-top:8px;line-height:1.5}
.dir-card.on{background:var(--fire);color:#fff;box-shadow:none}
.dir-card.on .tag{color:var(--yellow)}
.dir-card.on .q{color:var(--yellow)}
.dir-card.on .a{color:rgba(255,255,255,.85)}
.grp .cell .val{margin-left:auto;color:#8a8a8e}
.grp .cell.hl{box-shadow:0 0 0 2.5px var(--fire)}
.grp .cell.hl .val{color:var(--fire);font-weight:600}
.grp .list{background:#fff;border-radius:12px;overflow:hidden}
.grp .list .cell{border-radius:0;background:none}
.grp .list .cell+.cell{border-top:.5px solid #d8d8dc}
.grp .list .cell.hl{border-radius:12px;box-shadow:inset 0 0 0 2.5px var(--fire)}
.doc .jnote{font-size:14.5px;color:var(--muted);background:var(--card);border-radius:16px;padding:14px 16px;margin-top:20px;box-shadow:0 0 0 1px rgba(60,40,20,.08)}
@media (max-width:1060px){
  .dir{grid-template-columns:1fr;gap:40px}
  .dir .settings{max-width:460px;width:calc(100% - 18px);justify-self:center}
}
@media (max-width:720px){
  html[lang=ja] h2{font-size:27px}
  html[lang=ja] .pitch{font-size:23px}
  html[lang=ja] .doc h1{font-size:31px}
  html[lang=ja] .final h2{font-size:27px}
  .study .hw-en{font-size:62px}
  .study .rd-ja{font-size:26px;margin-top:14px}
  .study .rd-kana{font-size:14px}
  .study .ex-en{font-size:13.5px;padding:0 20px}
  .study .ex-ja{font-size:12.5px;padding:0 20px}
  .final .hw-en{position:absolute;right:20px;top:30px;font-size:38px}
  html[lang=ja] .final .txt{padding-right:84px}
  .note-en{font-size:13.5px;padding:14px 14px}
  .dir-pair{grid-template-columns:1fr;gap:10px;margin-top:22px}
  .dir-card{padding:18px 18px 16px;border-radius:18px}
  .dir-card .q{font-size:26px;margin-top:8px}
}
html[lang=ja] .menu .drop a{line-height:1.4}
html[lang=ja] .fix h2{word-break:keep-all;overflow-wrap:anywhere}