:root{
  --bg:#06050c;--bg-2:#0d0b18;--glass:rgba(255,255,255,.035);--glass-2:rgba(255,255,255,.07);
  --line:rgba(255,255,255,.08);--line-2:rgba(255,255,255,.16);--text:#f1eefb;--muted:#a59fbd;--dim:#6f6987;
  --v:#8b5cf6;--v2:#a78bfa;--c:#22d3ee;--p:#f472b6;--a:#fbbf24;
  --grad:linear-gradient(110deg,#a78bfa 0%,#8b5cf6 30%,#22d3ee 70%,#67e8f9 100%);
  --radius:24px;color-scheme:dark;
}
:root[data-theme="light"]{
  --bg:#f7f5ff;--bg-2:#ffffff;--glass:rgba(255,255,255,.7);--glass-2:rgba(255,255,255,.95);
  --line:rgba(30,20,70,.09);--line-2:rgba(30,20,70,.18);--text:#151127;--muted:#5b5574;--dim:#8a84a3;
  --v:#7c3aed;--v2:#6d28d9;--c:#0891b2;--grad:linear-gradient(110deg,#6d28d9 0%,#7c3aed 35%,#0891b2 100%);color-scheme:light;
}
@media (prefers-color-scheme: light){
  :root:not([data-theme="dark"]){
    --bg:#f7f5ff;--bg-2:#ffffff;--glass:rgba(255,255,255,.7);--glass-2:rgba(255,255,255,.95);
    --line:rgba(30,20,70,.09);--line-2:rgba(30,20,70,.18);--text:#151127;--muted:#5b5574;--dim:#8a84a3;
    --v:#7c3aed;--v2:#6d28d9;--c:#0891b2;--grad:linear-gradient(110deg,#6d28d9 0%,#7c3aed 35%,#0891b2 100%);color-scheme:light;
  }
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{font-family:"Inter",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Hiragino Sans","Noto Sans JP","Noto Sans",Arial,sans-serif;background:var(--bg);color:var(--text);line-height:1.65;-webkit-font-smoothing:antialiased;overflow-x:hidden;min-height:100vh}
a{color:var(--v2);text-decoration:none}
a:hover{text-decoration:underline}
:focus-visible{outline:2px solid var(--c);outline-offset:3px;border-radius:8px}
img{max-width:100%;display:block}
.container{max-width:1180px;margin:0 auto;padding:0 20px}

/* ---------- background ---------- */
.bg{position:fixed;inset:0;z-index:-2;background:
  radial-gradient(900px 600px at 85% -10%,rgba(139,92,246,.22),transparent 60%),
  radial-gradient(700px 500px at -10% 30%,rgba(34,211,238,.10),transparent 60%),
  radial-gradient(800px 600px at 50% 120%,rgba(244,114,182,.08),transparent 60%),var(--bg)}
.bg::after{content:"";position:absolute;inset:0;opacity:.35;background-image:linear-gradient(var(--line) 1px,transparent 1px),linear-gradient(90deg,var(--line) 1px,transparent 1px);background-size:56px 56px;mask-image:radial-gradient(ellipse at 50% 0%,#000 0%,transparent 70%);-webkit-mask-image:radial-gradient(ellipse at 50% 0%,#000 0%,transparent 70%)}

/* ---------- nav ---------- */
.nav{position:sticky;top:0;z-index:20;transition:background .3s,border-color .3s;border-bottom:1px solid transparent}
.nav.scrolled{background:color-mix(in srgb,var(--bg) 72%,transparent);backdrop-filter:saturate(180%) blur(18px);-webkit-backdrop-filter:saturate(180%) blur(18px);border-bottom-color:var(--line)}
.nav-inner{max-width:1180px;margin:0 auto;padding:12px 20px;display:flex;align-items:center;gap:10px}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;letter-spacing:.06em;color:var(--text);font-size:.95rem}
.brand:hover{text-decoration:none}
.brand img{width:32px;height:32px;border-radius:9px;box-shadow:0 0 0 1px var(--line-2)}
.nav-links{display:flex;gap:2px;margin-inline-start:auto;align-items:center}
.nav-links a{padding:8px 13px;border-radius:999px;font-size:.88rem;color:var(--muted);font-weight:500}
.nav-links a:hover,.nav-links a[aria-current="page"]{color:var(--text);background:var(--glass-2);text-decoration:none}
.icon-btn{display:inline-grid;place-items:center;width:38px;height:38px;border-radius:999px;border:1px solid var(--line);background:var(--glass);color:var(--text);cursor:pointer;transition:border-color .2s}
.icon-btn:hover{border-color:var(--line-2)}
.icon-btn svg{width:17px;height:17px}
.lang{display:flex;align-items:center;gap:6px;padding:0 12px;height:38px;border-radius:999px;background:var(--glass);border:1px solid var(--line);color:var(--text)}
.lang svg{width:16px;height:16px;flex:none;color:var(--muted)}
.lang select{appearance:none;-webkit-appearance:none;background:transparent;border:0;color:var(--text);font:inherit;font-size:.84rem;cursor:pointer;outline:none;max-width:140px}
.lang select option{color:#111;background:#fff}

/* ---------- hero ---------- */
.hero{position:relative;padding:72px 0 40px;min-height:min(calc(100vh - 62px),860px);display:flex;align-items:center}
#neural{position:absolute;inset:0;width:100%;height:100%;z-index:-1;opacity:.9;mask-image:linear-gradient(#000 60%,transparent);-webkit-mask-image:linear-gradient(#000 60%,transparent)}
.hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:48px;align-items:center;width:100%}
.pill{display:inline-flex;align-items:center;gap:10px;padding:7px 14px 7px 8px;border-radius:999px;background:var(--glass);border:1px solid var(--line-2);font-size:.8rem;color:var(--muted);backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px)}
.pill b{display:inline-flex;align-items:center;gap:6px;padding:3px 9px;border-radius:999px;background:linear-gradient(110deg,rgba(139,92,246,.35),rgba(34,211,238,.25));color:var(--text);font-size:.72rem;letter-spacing:.06em}
.pill b::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--c);box-shadow:0 0 10px var(--c);animation:blink 2s ease-in-out infinite}
@keyframes blink{50%{opacity:.3}}
.hero h1{margin:22px 0 4px;font-size:clamp(4rem,12vw,8.4rem);font-weight:900;line-height:.95;letter-spacing:-.03em;background:var(--grad);background-size:200% auto;-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;animation:sheen 8s linear infinite;filter:drop-shadow(0 10px 40px rgba(139,92,246,.35))}
@keyframes sheen{to{background-position:200% center}}
.hero .en{font-size:.9rem;letter-spacing:.6em;color:var(--dim);font-weight:700;margin-bottom:26px}
.hero .tagline{font-size:clamp(1.5rem,3.4vw,2.3rem);font-weight:800;letter-spacing:-.02em;line-height:1.25;margin-bottom:14px}
.hero .desc{font-size:1.05rem;color:var(--muted);max-width:560px;margin-bottom:32px}
.stores{display:flex;gap:12px;flex-wrap:wrap}
.store{display:inline-flex;align-items:center;gap:12px;padding:12px 22px 12px 18px;border-radius:16px;background:#0b0a12;color:#fff;border:1px solid rgba(255,255,255,.14);transition:transform .25s,box-shadow .25s,border-color .25s;min-width:200px;text-align:start;position:relative;overflow:hidden}
.store::after{content:"";position:absolute;inset:0;background:linear-gradient(120deg,transparent 30%,rgba(255,255,255,.12) 50%,transparent 70%);transform:translateX(-120%);transition:transform .6s}
.store:hover{transform:translateY(-3px);box-shadow:0 18px 50px -10px rgba(139,92,246,.6);border-color:rgba(167,139,250,.6);text-decoration:none}
.store:hover::after{transform:translateX(120%)}
.store svg{width:28px;height:28px;flex:none}
.store small{display:block;font-size:.68rem;opacity:.75;line-height:1.15}
.store b{display:block;font-size:1.12rem;font-weight:700;line-height:1.2}
.free{margin-top:16px;font-size:.84rem;color:var(--dim)}
.hero-center{text-align:center}.hero-center .stores{justify-content:center}

/* phone mockup */
.phone-wrap{position:relative;display:grid;place-items:center;perspective:1200px}
.phone-wrap::before{content:"";position:absolute;width:78%;aspect-ratio:1;border-radius:50%;background:conic-gradient(from 180deg,#8b5cf6,#22d3ee,#f472b6,#8b5cf6);filter:blur(70px);opacity:.45;animation:spin 14s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}
.phone{position:relative;width:min(300px,72vw);aspect-ratio:1242/2688;border-radius:46px;padding:10px;background:linear-gradient(145deg,#2a2440,#0c0a14);box-shadow:0 0 0 1px rgba(255,255,255,.12),0 40px 80px -20px rgba(0,0,0,.8),inset 0 0 0 1px rgba(255,255,255,.06);transform:rotateY(-12deg) rotateX(6deg);animation:float 7s ease-in-out infinite}
@keyframes float{50%{transform:rotateY(-8deg) rotateX(3deg) translateY(-14px)}}
.phone img{width:100%;height:100%;object-fit:cover;border-radius:37px;background:#000}
.phone .slide{position:absolute;inset:10px;opacity:0;transition:opacity .9s}
.phone .slide.on{opacity:1}

/* ---------- sections ---------- */
.section{padding:96px 0 40px}
.eyebrow{display:inline-block;font-size:.76rem;font-weight:800;letter-spacing:.18em;text-transform:uppercase;background:var(--grad);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;margin-bottom:12px}
.section h2{font-size:clamp(2rem,5vw,3.4rem);font-weight:900;letter-spacing:-.035em;line-height:1.05;margin-bottom:14px}
.section .sub{color:var(--muted);font-size:1.05rem;max-width:620px;margin-bottom:40px}
.cat{display:flex;align-items:center;gap:12px;margin:44px 0 16px;font-size:.82rem;font-weight:800;letter-spacing:.14em;text-transform:uppercase;color:var(--muted)}
.cat::before{content:"";width:28px;height:2px;border-radius:2px;background:var(--cc,var(--v))}
.cat::after{content:"";flex:1;height:1px;background:var(--line)}

/* bento cards with glow border + spotlight */
.bento{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
.card{--mx:50%;--my:50%;position:relative;border-radius:var(--radius);padding:24px;background:var(--glass);border:1px solid var(--line);overflow:hidden;isolation:isolate;transition:transform .35s cubic-bezier(.2,.8,.2,1),border-color .35s;backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);min-height:200px;display:flex;flex-direction:column}
.card::before{content:"";position:absolute;inset:0;z-index:-1;background:radial-gradient(420px circle at var(--mx) var(--my),color-mix(in srgb,var(--k,#8b5cf6) 22%,transparent),transparent 45%);opacity:0;transition:opacity .35s}
.card:hover{transform:translateY(-4px);border-color:color-mix(in srgb,var(--k,#8b5cf6) 55%,transparent)}
.card:hover::before{opacity:1}
.card.wide{grid-column:span 2}
.card .deco{width:100%;height:46px;margin-top:18px;opacity:.9}
.card .ic{width:48px;height:48px;border-radius:15px;display:grid;place-items:center;color:var(--k,#8b5cf6);background:color-mix(in srgb,var(--k,#8b5cf6) 15%,transparent);box-shadow:inset 0 0 0 1px color-mix(in srgb,var(--k,#8b5cf6) 35%,transparent),0 0 30px -6px color-mix(in srgb,var(--k,#8b5cf6) 60%,transparent);margin-bottom:auto}
.card .ic svg{width:24px;height:24px}
.card h3{font-size:1.12rem;font-weight:800;letter-spacing:-.01em;margin:22px 0 6px}
.card p{font-size:.9rem;color:var(--muted);line-height:1.55}
.card .new{position:absolute;top:18px;inset-inline-end:18px;font-size:.66rem;font-weight:900;letter-spacing:.12em;padding:4px 10px;border-radius:999px;color:#fff;background:linear-gradient(110deg,#f472b6,#8b5cf6);box-shadow:0 6px 20px -4px rgba(244,114,182,.6)}
.card .num{position:absolute;top:16px;inset-inline-end:20px;font-size:1.9rem;font-weight:900;color:var(--line-2);letter-spacing:-.04em;line-height:1;z-index:-1}

/* screenshots */
.shots-wrap{position:relative;margin:0 -20px}
.shots{display:flex;gap:22px;overflow-x:auto;padding:12px 20px 30px;scroll-snap-type:x mandatory;-webkit-overflow-scrolling:touch;scrollbar-width:none;mask-image:linear-gradient(90deg,transparent,#000 6%,#000 94%,transparent);-webkit-mask-image:linear-gradient(90deg,transparent,#000 6%,#000 94%,transparent)}
.shots::-webkit-scrollbar{display:none}
.shot{flex:none;width:230px;aspect-ratio:1242/2688;border-radius:34px;padding:7px;background:linear-gradient(145deg,#2a2440,#0c0a14);box-shadow:0 0 0 1px rgba(255,255,255,.1),0 30px 60px -25px rgba(0,0,0,.7);scroll-snap-align:center;transition:transform .35s}
.shot:hover{transform:translateY(-6px)}
.shot img{width:100%;height:100%;object-fit:cover;border-radius:28px;background:#000}

/* features */
.features{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.feature{display:flex;gap:16px;align-items:center;padding:20px 22px;border-radius:20px;background:var(--glass);border:1px solid var(--line)}
.feature .fi{width:44px;height:44px;flex:none;border-radius:13px;display:grid;place-items:center;background:linear-gradient(135deg,rgba(139,92,246,.25),rgba(34,211,238,.18));color:var(--text)}
.feature svg{width:21px;height:21px}
.feature p{font-size:.95rem;font-weight:600}

/* cta */
.cta{position:relative;margin:80px 0 90px;padding:72px 28px;border-radius:36px;text-align:center;overflow:hidden;border:1px solid var(--line-2);background:linear-gradient(160deg,rgba(139,92,246,.20),rgba(13,11,24,.4) 60%)}
.cta::before{content:"";position:absolute;inset:-40%;background:conic-gradient(from 0deg,transparent,rgba(139,92,246,.35),transparent 30%,rgba(34,211,238,.3),transparent 60%);animation:spin 16s linear infinite;z-index:-1}
.cta::after{content:"";position:absolute;inset:1px;border-radius:35px;background:color-mix(in srgb,var(--bg) 82%,transparent);z-index:-1}
.cta img{width:84px;height:84px;border-radius:22px;margin:0 auto 22px;box-shadow:0 20px 50px -10px rgba(139,92,246,.6)}
.cta h2{font-size:clamp(1.9rem,4.5vw,3rem);font-weight:900;letter-spacing:-.03em;margin-bottom:12px}
.cta p{color:var(--muted);margin-bottom:30px}
.cta .stores{justify-content:center}

/* footer */
.footer{border-top:1px solid var(--line);padding:36px 20px 48px;color:var(--dim);font-size:.84rem}
.footer-inner{max-width:1180px;margin:0 auto;display:flex;gap:20px;align-items:center;justify-content:space-between;flex-wrap:wrap}
.footer .links{display:flex;gap:20px;flex-wrap:wrap}
.footer .links a{color:var(--muted)}

/* document pages */
.page{padding:72px 0 60px}
.page h1{font-size:clamp(2.4rem,6vw,4rem);font-weight:900;letter-spacing:-.035em;line-height:1.05;background:var(--grad);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;margin-bottom:10px}
.page .subtitle{color:var(--muted);margin-bottom:36px}
.doc{display:grid;gap:14px;max-width:820px}
.doc .card{min-height:0;display:block;padding:26px 28px}
.doc .card:hover{transform:none}
.doc .card h2{font-size:1.12rem;font-weight:800;margin-bottom:10px}
.doc .card h3{font-size:1rem;font-weight:700;margin:18px 0 4px}
.doc .card h3:first-of-type{margin-top:4px}
.doc .card p{font-size:.96rem;color:var(--muted);margin-bottom:6px}
.doc .card p:last-child{margin-bottom:0}
.doc .card ul{color:var(--muted);font-size:.96rem;padding-inline-start:20px}
.mail{display:inline-flex;align-items:center;gap:10px;padding:12px 18px;border-radius:14px;background:var(--glass-2);border:1px solid var(--line-2);font-weight:700;color:var(--text);margin-top:10px}
.mail:hover{border-color:var(--v);text-decoration:none}
.mail svg{width:18px;height:18px}

/* reveal on scroll */
.reveal{opacity:0;transform:translateY(26px);transition:opacity .8s cubic-bezier(.2,.8,.2,1),transform .8s cubic-bezier(.2,.8,.2,1)}
.reveal.in{opacity:1;transform:none}
.no-js .reveal{opacity:1;transform:none}

@media (max-width:980px){
  .hero{min-height:0;padding:48px 0 24px}
  .hero-grid{grid-template-columns:1fr;gap:40px;text-align:center}
  .hero .desc{margin-inline:auto}
  .stores{justify-content:center}
  .bento{grid-template-columns:repeat(2,1fr)}
  .features{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:620px){
  .nav-links{display:none}
  .lang{margin-inline-start:auto}
  .lang select{max-width:96px}
  .bento,.features{grid-template-columns:1fr}
  .card.wide{grid-column:auto}
  .card{min-height:0}
  .store{min-width:0;flex:1 1 44%;padding:11px 14px}
  .section{padding:72px 0 24px}
  .shot{width:190px}
  .phone{width:min(230px,60vw);border-radius:38px}
  .phone img{border-radius:30px}
  .cta{padding:56px 20px}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation:none!important;transition:none!important}
  .reveal{opacity:1;transform:none}
}