:root{
  --paper:#F5EFE3; --paper-card:#FBF6EC; --paper-sunk:#EFE7D6; --paper-deep:#F0E7D4;
  --ink:#2B2521; --ink-soft:#5C5347; --ink-mute:#7A7061; --ink-faint:#9A8F79;
  --line:#E7DCC6; --line-soft:#ECE3D0; --line-mid:#E2D8C2; --line-strong:#C9BDA4;
  --akane:#AE2E32; --akane-deep:#8C1F27; --hinomaru:#BC002D;
  --tile-red:#BE2F38; --tile-blue:#234C8B; --tile-yellow:#D9AE3C; --tile-green:#2F7A4E;
  --gold:#C29B4E;
  --jp:system-ui,-apple-system,"Hiragino Kaku Gothic ProN","Noto Sans JP","Yu Gothic",sans-serif;
  --lat:system-ui,-apple-system,"Helvetica Neue",Arial,sans-serif;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;background:var(--paper);color:var(--ink);font-family:var(--jp);
  -webkit-font-smoothing:antialiased;overflow-x:hidden;
}
a{color:var(--akane);text-decoration:none}
a:hover{color:var(--akane-deep)}
img{display:block}
button{font-family:inherit}

/* washi + seigaiha background */
.bg-pattern,.bg-noise{position:fixed;inset:0;pointer-events:none;z-index:0}
.bg-pattern{
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='56' height='28'%3E%3Cg fill='none' stroke='%23234C8B' stroke-width='1.3'%3E%3Cpath d='M2 28 a26 26 0 0 1 52 0'/%3E%3Cpath d='M10 28 a18 18 0 0 1 36 0'/%3E%3Cpath d='M18 28 a10 10 0 0 1 20 0'/%3E%3C/g%3E%3C/svg%3E");
  background-size:56px 28px;opacity:.075;
}
.bg-noise{
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='140' height='140'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='2'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  background-size:140px;opacity:.05;mix-blend-mode:multiply;
}
.page{position:relative;z-index:1}
.wrap{max-width:1080px;margin:0 auto;padding:0 28px}

/* header */
.site-header{
  position:sticky;top:0;z-index:20;background:rgba(245,239,227,.88);
  backdrop-filter:blur(10px);border-bottom:1px solid var(--line);
}
.site-header .wrap{display:flex;align-items:center;justify-content:space-between;gap:20px;padding-top:14px;padding-bottom:14px}
.brand{display:flex;align-items:center;gap:11px}
.brand-mark{position:relative;width:34px;height:34px;display:grid;place-items:center}
.brand-mark svg{position:absolute;overflow:visible}
.brand-mark .mini-quad{position:relative;display:grid;grid-template-columns:repeat(2,6px);grid-template-rows:repeat(2,6px);gap:1.5px}
.brand-mark .mini-quad span{border-radius:1.5px}
.brand-name{font:700 19px var(--lat);letter-spacing:.05em}
.header-right{display:flex;align-items:center;gap:22px}
.site-nav{display:flex;gap:22px}
.site-nav a{font:500 14px var(--jp);color:var(--ink-soft)}
.site-nav a:hover{color:var(--akane)}

.lang-toggle{display:flex;background:var(--paper-sunk);border:1px solid #D5CAB2;border-radius:999px;padding:3px;gap:2px}
.lang-toggle button{
  border:none;cursor:pointer;padding:6px 13px;border-radius:999px;
  font:600 12px var(--jp);background:transparent;color:var(--ink-mute);
}
.lang-toggle button[data-lang="en"]{font-family:var(--lat)}
.lang-toggle button[aria-pressed="true"]{background:var(--ink);color:var(--paper)}

/* hero */
.hero{display:grid;grid-template-columns:1fr auto;gap:56px;align-items:center;padding:76px 28px 84px}
.hero-copy{display:flex;flex-direction:column;gap:20px}
.pill{
  align-self:flex-start;padding:6px 14px;border-radius:999px;background:var(--paper-sunk);
  border:1px solid var(--line-mid);font:600 12px var(--jp);color:var(--ink-mute);letter-spacing:.06em;
}
.hero h1{margin:0;font:700 62px var(--lat);letter-spacing:.01em;line-height:1}
.hero-jp{font:900 25px var(--jp);letter-spacing:.1em;color:var(--akane)}
.hero-lead{margin:6px 0 0;font:400 19px var(--jp);color:var(--ink-soft);line-height:1.75;max-width:430px;text-wrap:pretty}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:12px}
.btn-primary{
  display:flex;align-items:center;gap:11px;height:58px;padding:0 26px;border-radius:999px;
  background:var(--akane);color:#FBF6EC;font:700 17px var(--jp);letter-spacing:.04em;
  box-shadow:0 14px 28px -12px rgba(174,46,50,.75);
}
.btn-primary:hover{background:var(--akane-deep);color:#FBF6EC}
.btn-ghost{
  display:flex;align-items:center;height:58px;padding:0 26px;border-radius:999px;
  border:1.5px solid var(--line-strong);color:var(--ink);font:600 16px var(--jp);
}
.btn-ghost:hover{border-color:var(--akane);color:var(--akane)}
.hero-meta{display:flex;flex-wrap:wrap;gap:20px;margin-top:14px;font:400 13px var(--jp);color:var(--ink-faint)}

.hero-shots{position:relative;display:flex;align-items:center;gap:20px}
.hero-enso{position:absolute;left:-90px;top:-70px;pointer-events:none;opacity:.16}
.phone{
  position:relative;width:214px;height:462px;border-radius:32px;background:#211d19;padding:8px;
  box-shadow:0 26px 54px -18px rgba(43,37,33,.55);
}
.phone-screen{width:100%;height:100%;border-radius:25px;overflow:hidden;background:var(--paper)}
.phone-screen img{width:100%;height:100%;object-fit:contain}

/* sections */
.band{background:var(--paper-card);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-pad{padding:74px 28px}
.kicker{display:flex;align-items:center;gap:11px;margin-bottom:12px}
.kicker i{width:10px;height:10px;background:var(--akane);transform:rotate(45deg);border-radius:2px}
.kicker span{font:600 12px var(--lat);color:var(--ink-faint);letter-spacing:.24em}
.section-title{margin:0 0 10px;font:700 34px var(--jp);letter-spacing:.02em}
.section-lead{margin:0;font:400 17px var(--jp);color:var(--ink-mute);max-width:560px;line-height:1.75}

/* how to play */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:28px;margin-top:44px}
.step{display:flex;flex-direction:column;gap:16px}
.step-art{height:190px;border-radius:20px;background:var(--paper);border:1px solid var(--line);display:grid;place-items:center}
.step-title{font:700 16px var(--jp)}
.step-title b{font:600 13px var(--lat);color:var(--akane);margin-right:8px}
.step-desc{font:400 14px var(--jp);color:var(--ink-mute);line-height:1.75}

.quad-stage{position:relative;width:132px;height:132px;display:grid;place-items:center}
.quad{display:grid;grid-template-columns:repeat(2,52px);grid-template-rows:repeat(2,52px);gap:5px;border-radius:14px;overflow:hidden}
.quad.lift{box-shadow:0 8px 16px -7px rgba(43,37,33,.35)}
.quad.ghost{position:absolute;opacity:.28;transform:rotate(30deg)}
.quad.turning{position:absolute;animation:kururi-spin 2.6s cubic-bezier(.22,.85,.25,1) infinite}
.quad-stage > svg{position:absolute;left:0;top:0;overflow:visible}
@keyframes kururi-spin{0%{transform:rotate(0)}55%{transform:rotate(90deg)}100%{transform:rotate(90deg)}}
@media (prefers-reduced-motion:reduce){.quad.turning{animation:none;transform:rotate(90deg)}}

.goal-grid{display:grid;grid-template-columns:repeat(3,40px);grid-template-rows:repeat(3,40px);gap:4px;border-radius:12px;overflow:hidden;box-shadow:0 8px 16px -7px rgba(43,37,33,.35)}

/* features */
.feature-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.card{
  background:var(--paper-card);border:1px solid var(--line-soft);border-radius:20px;padding:28px;
  display:flex;flex-direction:column;gap:11px;
}
.card h3{margin:0;font:700 19px var(--jp)}
.card p{margin:0;font:400 14px var(--jp);color:var(--ink-mute);line-height:1.8}
.tag-row{display:flex;gap:5px;flex-wrap:wrap}
.tag{padding:4px 11px;border-radius:999px;background:var(--paper-sunk);font:600 12px var(--jp);color:var(--ink-soft)}
.tag.on{background:var(--akane);color:#FBF6EC}
.tag.ink{background:var(--ink);color:var(--paper)}
.tag.lat{font-family:var(--lat)}
.swatches{display:flex;gap:6px;align-items:flex-end}
.swatches i{border-radius:5px;display:block}
.stars{display:flex;gap:4px}

/* screenshots */
.shot-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.shot{margin:0;display:flex;flex-direction:column;gap:12px}
.shot-frame{
  aspect-ratio:9/16;border-radius:18px;overflow:hidden;border:1px solid var(--line);
  background:var(--paper);box-shadow:0 12px 26px -14px rgba(43,37,33,.4);
}
.shot-frame img{width:100%;height:100%;object-fit:contain}
.shot figcaption{font:500 13px var(--jp);color:var(--ink-soft);text-align:center}

/* closing cta */
.cta{
  position:relative;border-radius:28px;background:var(--paper-deep);border:1px solid var(--line-mid);
  padding:56px 48px;overflow:hidden;display:flex;align-items:center;justify-content:space-between;gap:36px;
}
.cta-enso{position:absolute;right:-52px;top:-58px;pointer-events:none;opacity:.2}
.cta-copy{position:relative;display:flex;flex-direction:column;gap:12px}
.cta h2{margin:0;font:700 32px var(--jp);letter-spacing:.02em}
.cta p{margin:0;font:400 17px var(--jp);color:var(--ink-soft);line-height:1.75;max-width:420px;text-wrap:pretty}
.cta .btn-primary{position:relative;flex:none;height:60px;padding:0 30px}

/* footer */
.site-footer{border-top:1px solid var(--line);background:var(--paper-card)}
.site-footer .wrap{display:flex;align-items:center;justify-content:space-between;gap:20px;padding-top:34px;padding-bottom:34px}
.footer-brand{display:flex;align-items:center;gap:10px}
.footer-brand b{font:700 15px var(--lat);letter-spacing:.05em}
.footer-brand span{font:500 13px var(--jp);color:var(--ink-faint)}
.site-footer small{font:400 12px var(--jp);color:var(--ink-faint)}

/* responsive */
@media (max-width:960px){
  .hero{grid-template-columns:1fr;gap:44px;padding-top:56px;padding-bottom:64px}
  .hero h1{font-size:52px}
  .hero-shots{justify-content:center}
  .hero-enso{left:50%;top:-60px;transform:translateX(-50%)}
  .steps{grid-template-columns:1fr;gap:32px}
  .feature-grid{grid-template-columns:1fr}
  .shot-grid{grid-template-columns:repeat(2,1fr)}
  .cta{flex-direction:column;align-items:flex-start;padding:40px 32px}
  .site-nav{display:none}
}
@media (max-width:560px){
  .wrap,.hero,.section-pad{padding-left:20px;padding-right:20px}
  .hero h1{font-size:42px}
  .hero-lead{font-size:17px}
  .section-title{font-size:27px}
  .phone{width:172px;height:372px}
  .shot-grid{grid-template-columns:1fr 1fr;gap:14px}
  .btn-primary,.btn-ghost{width:100%;justify-content:center}
}