:root{
  --ink:#0A0E13;          /* night ground */
  --ink-2:#111821;        /* raised night surface */
  --ink-line:rgba(233,228,216,.12);
  --ivory:#F4F1EA;        /* day ground */
  --paper:#FBFAF6;        /* raised day surface */
  --day-line:#DDD7CA;
  --text-night:#ECE7DC;
  --muted-night:#8E96A3;
  --text-day:#141A22;
  --muted-day:#5E6570;
  --gold:#C9AE7C;         /* champagne */
  --gold-deep:#7A6238;
  --serif:"Cormorant Garamond","Iowan Old Style","Palatino Linotype",Georgia,serif;
  --sans:"Instrument Sans","Helvetica Neue",Arial,system-ui,sans-serif;
  --mono:"IBM Plex Mono",ui-monospace,Menlo,Consolas,monospace;
  --wrap:1200px;
  --gutter:clamp(20px,5vw,56px);
}
*{box-sizing:border-box}
html{scroll-padding-top:84px;scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{margin:0;background:var(--ink);color:var(--text-night);font-family:var(--sans);font-size:16px;line-height:1.6;-webkit-font-smoothing:antialiased}
a{color:inherit}
img,svg{max-width:100%}
:focus-visible{outline:1.5px solid var(--gold);outline-offset:3px;border-radius:2px}
.wrap{max-width:var(--wrap);margin:0 auto;padding-inline:var(--gutter)}
h1,h2,h3{font-family:var(--serif);font-weight:500;letter-spacing:-.01em;text-wrap:balance;margin:0}
p{margin:0}

/* ---------- labels ---------- */
.eyebrow{font-family:var(--mono);font-size:11.5px;letter-spacing:.22em;text-transform:uppercase;color:var(--gold);display:flex;align-items:center;gap:14px}
.eyebrow::before{content:"";width:28px;height:1px;background:currentColor;opacity:.7}
.day .eyebrow{color:var(--gold-deep)}

/* ---------- disclosure bar ---------- */
.disclosure{border-bottom:1px solid var(--ink-line);font-size:12.5px;color:var(--muted-night);padding-block:10px;text-align:center;letter-spacing:.01em}

/* ---------- nav ---------- */
.nav{position:sticky;top:env(safe-area-inset-top,0px);z-index:20;background:rgba(10,14,19,.82);backdrop-filter:saturate(140%) blur(14px);-webkit-backdrop-filter:saturate(140%) blur(14px);border-bottom:1px solid var(--ink-line)}
.nav .wrap{display:flex;align-items:center;gap:32px;height:72px}
.brand{display:flex;align-items:center;gap:12px;text-decoration:none}
.brand .logo{display:block;height:24px;width:auto}
.fmark{display:block;height:20px;width:auto}
.links{display:flex;gap:28px;margin-left:auto;font-size:14px}
.links a{text-decoration:none;color:var(--muted-night);transition:color .2s}
.links a:hover,.links a.on{color:var(--text-night)}
.links a{position:relative}
.links a.on::after{content:"";position:absolute;left:0;right:0;bottom:-8px;height:1px;background:var(--gold)}
.menu-btn{display:none;width:38px;height:38px;border-radius:50%;border:1px solid var(--ink-line);background:transparent;color:var(--text-night);cursor:pointer;place-items:center}
.menu-btn svg{width:16px;height:16px;stroke:currentColor;fill:none;stroke-width:1.5}
.sheet{border-top:1px solid var(--ink-line);background:var(--ink)}
.nav .sheet .wrap{display:grid;gap:0;height:auto;align-items:stretch;padding-block:4px 12px}
.sheet a{text-decoration:none;padding:12px 0;border-bottom:1px solid var(--ink-line);font-family:var(--serif);font-size:20px}
.sheet a:last-child{border-bottom:0}
.nav-end{display:flex;align-items:center;gap:14px;margin-left:auto}
.lang{appearance:none;background:transparent;color:var(--text-night);border:1px solid var(--ink-line);border-radius:999px;padding:7px 30px 7px 14px;font:500 12.5px/1 var(--sans);letter-spacing:.08em;cursor:pointer;background-image:linear-gradient(45deg,transparent 50%,var(--muted-night) 50%),linear-gradient(135deg,var(--muted-night) 50%,transparent 50%);background-position:calc(100% - 15px) 52%,calc(100% - 11px) 52%;background-size:4px 4px;background-repeat:no-repeat}
.lang option{color:#111}
.btn{display:inline-flex;align-items:center;gap:10px;text-decoration:none;font:500 14px/1 var(--sans);letter-spacing:.02em;border-radius:999px;padding:14px 22px;transition:background .25s,color .25s,border-color .25s,transform .25s}
.btn-gold{background:var(--gold);color:#17120A}
.btn-gold:hover{background:#D9C194}
.btn-ghost{border:1px solid rgba(233,228,216,.28);color:var(--text-night)}
.btn-ghost:hover{border-color:var(--gold);color:var(--gold)}
.btn small{display:block;font-size:10.5px;letter-spacing:.08em;text-transform:uppercase;opacity:.7;margin-bottom:3px}
.btn .stack{line-height:1.1}
.nav .btn{padding:10px 18px;font-size:13px}

/* ---------- hero ---------- */
.hero{position:relative;overflow:hidden;border-bottom:1px solid var(--ink-line)}
.hero::before{content:"";position:absolute;inset:-20% -10% auto auto;width:900px;height:900px;background:radial-gradient(closest-side,rgba(201,174,124,.16),transparent 70%);pointer-events:none}
.hero .wrap{position:relative;display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center;padding-block:clamp(48px,6.5vw,88px)}
.hero h1{font-size:clamp(42px,5.6vw,74px);line-height:1.04;margin:22px 0 22px;font-weight:400}
.hero h1 em{font-style:italic;color:var(--gold)}
.lede{font-size:clamp(17px,1.5vw,19px);color:#BFC4CC;max-width:34em;line-height:1.65}
.ctas{display:flex;flex-wrap:wrap;gap:12px;margin-top:30px}
.region{margin-top:18px;font-size:13px;color:var(--muted-night)}

/* card */
.stage{perspective:1400px;display:grid;justify-items:center;gap:26px}
.card{width:min(460px,100%);aspect-ratio:1.586;border-radius:22px;position:relative;overflow:hidden;color:#EFE6D2;
  background:
    radial-gradient(120% 90% at 85% 0%,rgba(201,174,124,.30),transparent 55%),
    repeating-radial-gradient(circle at 120% 130%,rgba(233,215,178,.07) 0 1px,transparent 1px 7px),
    linear-gradient(150deg,#232B36 0%,#131922 55%,#0B1017 100%);
  box-shadow:0 1px 0 rgba(255,255,255,.12) inset,0 0 0 1px rgba(201,174,124,.22) inset,0 60px 90px -30px rgba(0,0,0,.8),0 30px 40px -25px rgba(201,174,124,.18);
  transform:rotateX(10deg) rotateY(-16deg) rotateZ(2deg);transform-style:preserve-3d;transition:transform .6s cubic-bezier(.2,.7,.2,1)}
.card::after{content:"";position:absolute;inset:0;background:linear-gradient(115deg,transparent 35%,rgba(255,244,220,.16) 48%,transparent 60%);transform:translateX(-60%);animation:sheen 7s ease-in-out infinite}
@keyframes sheen{0%,55%{transform:translateX(-70%)}85%,100%{transform:translateX(70%)}}
.card-in{position:absolute;inset:0;padding:7% 8%;display:grid;grid-template-rows:auto 1fr auto auto}
.card-top{display:flex;justify-content:space-between;align-items:flex-start}
.card-logo{display:block;height:clamp(44px,6vw,58px);width:auto;filter:drop-shadow(0 1px 0 rgba(0,0,0,.35))}
.card-tag{font-family:var(--mono);font-size:10px;letter-spacing:.3em;color:rgba(239,230,210,.7);border:1px solid rgba(239,230,210,.28);padding:5px 9px;border-radius:999px}
.chip{align-self:center;width:15%;aspect-ratio:1.3;border-radius:6px;background:linear-gradient(135deg,#E6D0A1,#A8864F 55%,#DCC28E);box-shadow:inset 0 0 0 1px rgba(0,0,0,.25);position:relative}
.chip::before{content:"";position:absolute;inset:22% 0;border-block:1px solid rgba(60,44,18,.45)}
.chip::after{content:"";position:absolute;inset:0 38%;border-inline:1px solid rgba(60,44,18,.45)}
.card-num{font-family:var(--mono);font-size:clamp(15px,2vw,19px);letter-spacing:.18em;margin-bottom:10px}
.card-foot{display:flex;justify-content:space-between;align-items:flex-end;font-family:var(--mono);font-size:11px;letter-spacing:.16em;color:rgba(239,230,210,.82)}
.card-foot span small{display:block;font-size:8.5px;letter-spacing:.2em;color:rgba(239,230,210,.5);margin-bottom:3px}
.capabilities{display:flex;flex-wrap:wrap;justify-content:center;gap:8px}
.capabilities span{font-family:var(--mono);font-size:11px;letter-spacing:.16em;text-transform:uppercase;color:var(--muted-night);border:1px solid var(--ink-line);padding:8px 14px;border-radius:999px}

/* ---------- assurance strip ---------- */
.assure{border-bottom:1px solid var(--ink-line);background:var(--ink-2)}
.assure .wrap{display:grid;grid-template-columns:repeat(4,1fr)}
.assure .wrap>div{padding:20px 24px 20px 0;display:flex;gap:14px;align-items:flex-start}
.assure .wrap>div+div{padding-left:24px;border-left:1px solid var(--ink-line)}
.assure svg{flex:none;width:22px;height:22px;stroke:var(--gold);fill:none;stroke-width:1.3;margin-top:2px}
.assure b{display:block;font-weight:500;font-size:14.5px;color:var(--text-night)}
.assure span{font-size:13px;color:var(--muted-night);line-height:1.5}

/* ---------- sections ---------- */
section{padding-block:clamp(52px,6vw,84px)}
.day{background:var(--ivory);color:var(--text-day)}
.day.paper{background:var(--paper);border-top:1px solid var(--day-line)}
.sec-head{display:grid;grid-template-columns:minmax(0,5fr) minmax(0,6fr);gap:40px;align-items:end;margin-bottom:clamp(28px,3.4vw,44px)}
.sec-head h2{font-size:clamp(32px,3.6vw,48px);line-height:1.06;margin-top:14px}
.sec-head p{font-size:16.5px;color:var(--muted-day);max-width:34em}
.night .sec-head p{color:#AEB4BE}

/* for review — fact sheet */
.facts{display:grid;grid-template-columns:repeat(2,1fr);border-top:1px solid var(--text-day)}
.fact{padding:22px 28px 24px 0;border-bottom:1px solid var(--day-line);display:grid;grid-template-rows:auto auto 1fr;gap:8px}
.fact:nth-child(even){padding-left:28px;border-left:1px solid var(--day-line)}
.fact .ref{font-family:var(--mono);font-size:11px;letter-spacing:.18em;color:var(--gold-deep)}
.fact h3{font-size:22px;line-height:1.15}
.fact p{font-size:15.5px;color:#3E4550;line-height:1.6}

/* scope & controls */
.ledger{display:grid;grid-template-columns:1fr 1fr;border:1px solid var(--day-line);background:var(--paper)}
.ledger>div{padding:clamp(22px,3vw,36px)}
.ledger>div+div{border-left:1px solid var(--day-line);background:#F1EDE4}
.ledger h3{font-size:28px;margin:12px 0 16px}
.ledger ul{list-style:none;margin:0;padding:0;display:grid;gap:0}
.ledger li{display:grid;grid-template-columns:28px 1fr;gap:10px;padding:12px 0;border-top:1px solid var(--day-line);font-size:15.5px;line-height:1.55}
.ledger li svg{width:16px;height:16px;margin-top:4px;stroke-width:1.6;fill:none}
.yes svg{stroke:#2E6B4F}
.no svg{stroke:#9A3B32}
.ledger .block+.block{margin-top:30px}
.ledger .note{margin-top:14px;font-size:14px;color:var(--muted-day);padding:14px 18px;border:1px dashed #C9C0AE;line-height:1.6}
.ledger .note+.note{margin-top:10px}

/* how it works */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:0;position:relative;counter-reset:s}
.step{padding:0 28px 0 0;position:relative}
.step+.step{padding-left:28px}
.step .node{display:flex;align-items:center;gap:0;margin-bottom:18px}
.step .node i{width:44px;height:44px;border-radius:50%;border:1px solid var(--gold);display:grid;place-items:center;font:500 13px var(--mono);color:var(--gold);font-style:normal;flex:none;background:var(--ink)}
.step .node::after{content:"";height:1px;flex:1;background:linear-gradient(90deg,var(--gold),rgba(201,174,124,.1))}
.step:last-child .node::after{background:none}
.step h3{font-size:24px;margin-bottom:8px}
.step p{font-size:15px;color:#AEB4BE;line-height:1.6}
.roles{margin-top:clamp(32px,4vw,48px);border:1px solid var(--ink-line);border-radius:4px;overflow-x:auto}
.roles table{width:100%;border-collapse:collapse;min-width:560px;font-size:14.5px}
.roles th,.roles td{text-align:left;padding:12px 20px;border-bottom:1px solid var(--ink-line)}
.roles tr:last-child td{border-bottom:0}
.roles thead th{font:500 11px var(--mono);letter-spacing:.18em;text-transform:uppercase;color:var(--muted-night);background:var(--ink-2)}
.roles td:first-child{color:var(--text-night)}
.roles td{color:#AEB4BE}
.roles-note{padding:12px 20px;font-size:13px;color:var(--muted-night);border-top:1px solid var(--ink-line);background:var(--ink-2)}
.dot{display:inline-flex;align-items:center;gap:8px}
.dot::before{content:"";width:7px;height:7px;border-radius:50%;background:var(--gold)}
.dot.off::before{background:transparent;border:1px solid #5B6370}
.dot.off{color:#737B88}

/* store badges (official artwork, with text fallback) */
.store{display:inline-flex;align-items:center;text-decoration:none;border-radius:9px;transition:opacity .25s,transform .25s}
.store:hover{opacity:.86}
.store img{display:block;height:48px;width:auto}
.store.gp img{height:70px;margin:-11px -10px}
.store .fb{display:none}
.store.fallback img{display:none}
.store.fallback .fb{display:inline-flex}

/* faq */
.faq-grid{display:grid;grid-template-columns:minmax(0,3fr) minmax(0,8fr);gap:clamp(32px,5vw,72px)}
.faq-grid .sec-head{display:block;margin:0;position:sticky;top:120px;align-self:start}
.faq-grid .sec-head p{margin-top:12px;font-size:15px}
details{border-bottom:1px solid var(--day-line)}
details:first-child{border-top:1px solid var(--text-day)}
summary{list-style:none;cursor:pointer;display:flex;justify-content:space-between;align-items:center;gap:24px;padding:16px 0;font-family:var(--serif);font-size:clamp(19px,1.7vw,22px);line-height:1.3}
summary::-webkit-details-marker{display:none}
summary .pm{flex:none;width:26px;height:26px;border-radius:50%;border:1px solid #BDB4A2;position:relative;transition:transform .3s,background .3s,border-color .3s}
summary .pm::before,summary .pm::after{content:"";position:absolute;left:50%;top:50%;width:11px;height:1px;background:var(--text-day);transform:translate(-50%,-50%)}
summary .pm::after{transform:translate(-50%,-50%) rotate(90deg);transition:transform .3s}
details[open] summary .pm{background:var(--text-day);border-color:var(--text-day)}
details[open] summary .pm::before,details[open] summary .pm::after{background:var(--ivory)}
details[open] summary .pm::after{transform:translate(-50%,-50%) rotate(0)}
summary:hover{color:var(--gold-deep)}
details p{padding:0 56px 18px 0;font-size:15px;color:#3E4550;max-width:40em}

/* contact */
.contact{position:relative;overflow:hidden}
.contact .wrap{position:relative;z-index:1;display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center}
.contact .watermark{position:absolute;right:-3%;top:50%;height:150%;width:auto;max-width:none;transform:translateY(-50%);opacity:.045;pointer-events:none;user-select:none}
.contact h2{font-size:clamp(34px,3.8vw,52px);line-height:1.05;font-weight:400;margin-top:14px}
.contact h2 em{color:var(--gold)}
.contact .sub{margin-top:14px;color:#AEB4BE;font-size:15.5px;max-width:30em}
.mailbox{display:grid;gap:0;border-top:1px solid var(--ink-line)}
.mailbox a{display:flex;justify-content:space-between;align-items:center;gap:20px;text-decoration:none;padding:16px 0;border-bottom:1px solid var(--ink-line);transition:padding .3s}
.mailbox a:hover{padding-left:10px}
.mailbox small{display:block;font:500 11px var(--mono);letter-spacing:.2em;text-transform:uppercase;color:var(--muted-night);margin-bottom:4px}
.mailbox strong{font-family:var(--serif);font-weight:500;font-size:clamp(21px,1.9vw,25px);color:var(--text-night);word-break:break-word}
.mailbox svg{flex:none;width:22px;height:22px;stroke:var(--gold);fill:none;stroke-width:1.3;transition:transform .3s}
.mailbox a:hover svg{transform:translate(4px,-4px)}

/* footer */
footer{border-top:1px solid var(--ink-line);padding-block:36px 28px;background:#070A0E}
.notices{display:grid;grid-template-columns:minmax(0,3fr) minmax(0,7fr);gap:40px;padding-bottom:26px;border-bottom:1px solid var(--ink-line)}
.notices h4{margin:0;font:500 11px var(--mono);letter-spacing:.2em;text-transform:uppercase;color:var(--gold)}
.notices p{font-size:13.5px;color:var(--muted-night);line-height:1.75;max-width:62em}
.legal{display:flex;justify-content:space-between;align-items:center;gap:20px;flex-wrap:wrap;padding-top:20px;font-size:13px;color:var(--muted-night)}
.legal nav{display:flex;gap:24px}
.legal a{text-decoration:none}
.legal a:hover{color:var(--text-night)}

/* Japanese */
html[lang="ja"]{--serif:"Shippori Mincho","Hiragino Mincho ProN","Yu Mincho","Noto Serif JP",serif;--sans:"Noto Sans JP","Hiragino Sans","Hiragino Kaku Gothic ProN","Yu Gothic",Meiryo,sans-serif}
html[lang="ja"] body{line-height:1.8;font-feature-settings:"palt" 1}
html[lang="ja"] h1,html[lang="ja"] h2,html[lang="ja"] h3,html[lang="ja"] summary{letter-spacing:.03em;word-break:auto-phrase;font-weight:500}
html[lang="ja"] em{font-style:normal}
html[lang="ja"] .btn small{text-transform:none;letter-spacing:.04em}
html[lang="ja"] .hero h1{font-size:clamp(36px,4.6vw,60px);line-height:1.3}
html[lang="ja"] .sec-head h2{font-size:clamp(28px,3vw,40px);line-height:1.35}
html[lang="ja"] .contact h2{font-size:clamp(30px,3.2vw,44px);line-height:1.3}
html[lang="ja"] .eyebrow,html[lang="ja"] .fact .ref,html[lang="ja"] .mailbox small,html[lang="ja"] .notices h4,html[lang="ja"] .capabilities span{letter-spacing:.12em}

/* motion */
.rise{animation:rise .9s cubic-bezier(.2,.7,.2,1) both}
.rise.d1{animation-delay:.08s}.rise.d2{animation-delay:.16s}.rise.d3{animation-delay:.24s}.rise.d4{animation-delay:.32s}
@keyframes rise{from{opacity:.001;transform:translateY(14px)}to{opacity:1;transform:none}}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation:none!important;transition:none!important}
  html{scroll-behavior:auto}
}

/* print — clean PDF for app review / compliance packs */
@media print{
  @page{margin:14mm}
  body{background:#fff;color:#111}
  .nav,.menu-btn,.sheet,.ctas,.capabilities,.card::after{display:none!important}
  .hero,.night,.assure,.contact,footer{background:#fff!important;color:#111!important}
  .hero *,.night *,.assure *,.contact *,footer *{color:#111!important}
  .eyebrow,.hero h1 em,.contact h2 em{color:#7A6238!important}
  .hero::before{display:none}
  .card{transform:none!important;box-shadow:none;-webkit-print-color-adjust:exact;print-color-adjust:exact}
  .card *{color:#EFE6D2!important}
  .watermark{display:none}
  section{padding-block:28px}
  .fact,.ledger .block,.step,details,.ledger li,.roles tr,.mailbox a{break-inside:avoid}
  .sec-head{break-after:avoid}
  .rise{animation:none!important;opacity:1!important;transform:none!important}
  details p{padding-right:0}
  .step .node i{background:#fff}
}

/* responsive */
@media (max-width:1020px){
  .links{display:none}
  .nav-end{margin-left:auto}
  .menu-btn{display:grid}
  .hero .wrap{grid-template-columns:1fr}
  .stage{padding-top:12px}
  .assure .wrap{grid-template-columns:1fr 1fr}
  .assure .wrap>div:nth-child(3){padding-left:0;border-left:0}
  .assure .wrap>div:nth-child(n+3){border-top:1px solid var(--ink-line)}
  .steps{grid-template-columns:1fr 1fr;row-gap:48px}
  .step:nth-child(3){padding-left:0}
  .step:nth-child(2) .node::after{background:none}
  .faq-grid{grid-template-columns:1fr}
  .faq-grid .sec-head{position:static}
}
@media (max-width:720px){
  .nav .btn{display:none}
  .sec-head{grid-template-columns:1fr;gap:20px}
  .facts,.ledger,.contact .wrap,.notices{grid-template-columns:1fr}
  .fact:nth-child(even){padding-left:0;border-left:0}
  .ledger>div+div{border-left:0;border-top:1px solid var(--day-line)}
  .steps{grid-template-columns:1fr;row-gap:0}
  .step,.step+.step,.step:nth-child(3){padding:0 0 26px 62px;position:relative}
  .step:last-child{padding-bottom:0}
  .step .node{position:absolute;left:0;top:0;margin:0;height:100%;flex-direction:column;align-items:center;width:44px}
  .step .node::after{width:1px;height:auto;flex:1;background:linear-gradient(180deg,var(--gold),rgba(201,174,124,.08))!important}
  .step:last-child .node::after{background:none!important}
  .step h3{padding-top:8px;font-size:22px}
  .roles{overflow:visible}
  .roles table{min-width:0}
  .roles thead{display:none}
  .roles tr{display:grid;grid-template-columns:1fr 1fr;border-bottom:1px solid var(--ink-line)}
  .roles tbody tr:last-child{border-bottom:0}
  .roles td{border:0;padding:6px 16px}
  .roles td:first-child{grid-column:1/-1;padding-top:14px;font-weight:500}
  .roles td[data-l]{padding-bottom:14px;font-size:13.5px}
  .roles td[data-l]::before{content:attr(data-l);display:block;font:500 10px var(--mono);letter-spacing:.18em;text-transform:uppercase;color:var(--muted-night);margin-bottom:4px}
  .roles-note{padding:12px 16px}
  .assure .wrap{grid-template-columns:1fr}
  .assure .wrap>div,.assure .wrap>div+div{padding:20px 0;border-left:0}
  .assure .wrap>div+div{border-top:1px solid var(--ink-line)}
  details p{padding-right:0}
  .card{transform:rotateX(6deg) rotateY(-8deg) rotateZ(1deg)}
}

.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0)}
.legal-page{padding-block:72px 120px;max-width:720px}
.legal-page h1{font-size:clamp(40px,5vw,64px);margin:16px 0 24px}
.legal-page h2{font-size:28px;margin:36px 0 12px}
.legal-page p{color:#AEB4BE;margin-bottom:16px}
.legal-page a{color:var(--gold)}