:root{
  --demo-ink:#11100e;
  --demo-charcoal:#24211d;
  --demo-parchment:#efe4d0;
  --demo-paper:#f7f0e4;
  --demo-bronze:#a8844d;
  --demo-bronze-dark:#765b36;
  --demo-vermilion:#9a312b;
  --demo-muted:#6b6258;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;background:var(--demo-ink)}
body.demo-page{margin:0;background:var(--demo-paper);color:var(--demo-ink);font-family:Georgia,'Times New Roman',serif}
.demo-page .site-header{position:fixed;inset:0 0 auto 0;z-index:50;background:rgba(17,16,14,.94);backdrop-filter:blur(12px);border-bottom:0;box-shadow:none}
.demo-page .primary-nav a.is-current{color:#f4ead8}
.demo-header-actions{gap:18px}
.demo-language{display:flex;align-items:center;border:1px solid rgba(239,228,208,.25)}
.demo-language button{appearance:none;border:0;background:transparent;color:#bfb6a7;padding:9px 11px;font:700 10px/1 Arial,sans-serif;letter-spacing:.14em;cursor:pointer}
.demo-language button.is-active{background:var(--demo-vermilion);color:#fff}
.demo-back{color:#d9cdbb;text-decoration:none;font:700 10px/1.2 Arial,sans-serif;letter-spacing:.12em;text-transform:uppercase}
.demo-main{padding-top:73px;overflow:hidden}
.demo-hero{position:relative;min-height:calc(100vh - 73px);display:flex;align-items:center;padding:9vh 7vw 8vh;background:var(--demo-ink);color:#f5ecdd}
.demo-hero-art{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;object-position:center;filter:saturate(.72) sepia(.08)}
.demo-hero-wash{position:absolute;inset:0;background:linear-gradient(90deg,rgba(14,13,12,.95) 0%,rgba(17,16,14,.88) 35%,rgba(17,16,14,.38) 62%,rgba(17,16,14,.14) 100%),linear-gradient(0deg,rgba(17,16,14,.62),transparent 45%)}
.demo-hero-copy{position:relative;z-index:2;width:min(670px,52vw);padding:42px 46px 40px 0}
.demo-kicker{margin:0 0 16px;color:var(--demo-bronze);font:800 11px/1.3 Arial,sans-serif;letter-spacing:.22em;text-transform:uppercase}
.demo-hero h1,.demo-request h2,.demo-walkthrough h2,.demo-confirmation h2{margin:0;font-weight:400;letter-spacing:-.035em}
.demo-hero h1{font-size:clamp(49px,6.5vw,92px);line-height:.94}
.demo-hero h1 em,.demo-request h2 em,.demo-walkthrough h2 em,.demo-confirmation h2 em{font-weight:400;color:var(--demo-bronze);font-style:italic}
.demo-lead{max-width:620px;margin:28px 0 0;color:#ddd3c5;font:400 18px/1.65 Arial,sans-serif}
.demo-promise{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;margin-top:42px;border-top:1px solid rgba(239,228,208,.2);border-bottom:1px solid rgba(239,228,208,.2)}
.demo-promise span{display:grid;grid-template-columns:auto 1fr;gap:12px;align-items:center;padding:16px 12px 16px 0;border-right:1px solid rgba(239,228,208,.14)}
.demo-promise span:last-child{border-right:0}
.demo-promise b{color:var(--demo-vermilion);font:800 10px Arial,sans-serif;letter-spacing:.12em}
.demo-promise small{color:#ede4d6;font:700 10px/1.35 Arial,sans-serif;letter-spacing:.08em;text-transform:uppercase}
.demo-scroll{position:absolute;z-index:3;right:6vw;bottom:5vh;color:#f4ead8;text-decoration:none;display:flex;align-items:center;gap:16px;font:700 10px Arial,sans-serif;letter-spacing:.14em;text-transform:uppercase}
.demo-scroll b{display:grid;place-items:center;width:42px;height:42px;border:1px solid rgba(244,234,216,.35);border-radius:50%;font-size:18px}
.demo-request{position:relative;display:grid;grid-template-columns:minmax(0,.82fr) minmax(560px,1.18fr);gap:7vw;padding:11vh 7vw;background:linear-gradient(120deg,#f7f0e4 0%,#efe4d0 100%)}
.demo-request:before{content:"";position:absolute;inset:0;background:radial-gradient(circle at 9% 30%,rgba(154,49,43,.08),transparent 25%),radial-gradient(circle at 88% 72%,rgba(168,132,77,.12),transparent 28%);pointer-events:none}
.request-intro,.demo-form{position:relative;z-index:1}
.request-intro{align-self:start;position:sticky;top:125px}
.demo-request h2,.demo-walkthrough h2,.demo-confirmation h2{font-size:clamp(39px,4.5vw,66px);line-height:1.02}
.request-intro>p:not(.demo-kicker){max-width:590px;margin:24px 0 32px;color:#514a43;font:400 16px/1.7 Arial,sans-serif}
.request-notes{border-top:1px solid rgba(36,33,29,.18)}
.request-notes>div{display:grid;grid-template-columns:42px 1fr;gap:16px;padding:18px 0;border-bottom:1px solid rgba(36,33,29,.13)}
.request-notes>div>span{color:var(--demo-vermilion);font-size:22px}
.request-notes p{margin:0;display:grid;gap:5px}
.request-notes strong{font:700 12px Arial,sans-serif;letter-spacing:.08em;text-transform:uppercase}
.request-notes small{color:#686059;font:400 13px/1.5 Arial,sans-serif}
.demo-form{background:rgba(255,252,246,.8);border:1px solid rgba(36,33,29,.14);box-shadow:0 28px 70px rgba(42,34,24,.10);padding:34px 38px 32px}
.form-head{display:flex;gap:18px;align-items:center;margin-bottom:28px;padding-bottom:23px;border-bottom:1px solid rgba(36,33,29,.14)}
.form-seal{display:grid;place-items:center;flex:0 0 52px;width:52px;height:52px;background:var(--demo-vermilion);color:#f9ecdd;font-size:28px}
.form-head p{margin:0 0 5px;color:var(--demo-bronze-dark);font:800 9px Arial,sans-serif;letter-spacing:.18em}
.form-head h3{margin:0;font-size:25px;font-weight:400}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px 18px}
.demo-form label,.interest-fieldset{font-family:Arial,sans-serif}
.demo-form label>span,.interest-fieldset legend{display:block;margin-bottom:8px;color:#3d3833;font-size:11px;font-weight:800;letter-spacing:.08em;text-transform:uppercase}
.demo-form input,.demo-form select,.demo-form textarea{width:100%;border:0;border-bottom:1px solid rgba(36,33,29,.26);border-radius:0;background:rgba(239,228,208,.28);color:var(--demo-ink);padding:13px 12px;outline:none;font:400 14px/1.3 Arial,sans-serif;transition:border-color .2s,background .2s}
.demo-form input:focus,.demo-form select:focus,.demo-form textarea:focus{border-color:var(--demo-vermilion);background:#fffaf1}
.demo-form input[aria-invalid="true"],.demo-form select[aria-invalid="true"]{border-color:var(--demo-vermilion)}
.interest-fieldset{border:0;margin:27px 0 22px;padding:0}
.interest-fieldset legend{margin-bottom:11px}
.interest-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:8px}
.interest-grid label{position:relative;cursor:pointer}
.interest-grid input{position:absolute;opacity:0;pointer-events:none}
.interest-grid span{display:flex!important;align-items:center;justify-content:center;min-height:44px;margin:0!important;padding:8px 10px;border:1px solid rgba(36,33,29,.16);background:#f8f0e4;color:#504840!important;text-align:center;font-size:10px!important;line-height:1.35;transition:.2s}
.interest-grid input:checked+span{border-color:var(--demo-bronze);background:#e7d8bd;color:#221f1b!important}
.message-label{display:block;margin-top:6px}
.demo-form textarea{resize:vertical;min-height:110px}
.form-error{min-height:18px;margin:12px 0 0;color:var(--demo-vermilion);font:700 11px/1.4 Arial,sans-serif}
.demo-submit{width:100%;margin-top:8px;padding:16px 18px;border:0;background:var(--demo-ink);color:#f7eddd;display:flex;justify-content:space-between;align-items:center;cursor:pointer;font:800 11px Arial,sans-serif;letter-spacing:.12em;text-transform:uppercase;transition:background .2s,transform .2s}
.demo-submit:hover{background:var(--demo-vermilion);transform:translateY(-1px)}
.demo-submit b{font-size:19px}
.prototype-note{margin:13px 0 0;color:#7b7269;text-align:center;font:400 10px/1.5 Arial,sans-serif}
.demo-walkthrough{padding:10vh 7vw 11vh;background:var(--demo-charcoal);color:#f4eadb}
.walk-head{max-width:800px;margin-bottom:52px}
.walk-track{display:grid;grid-template-columns:repeat(5,1fr);border-top:1px solid rgba(239,228,208,.2);border-bottom:1px solid rgba(239,228,208,.2)}
.walk-track article{min-height:270px;padding:28px 24px 30px;border-right:1px solid rgba(239,228,208,.15)}
.walk-track article:last-child{border-right:0}
.walk-track span{display:block;margin-bottom:54px;color:var(--demo-vermilion);font:800 10px Arial,sans-serif;letter-spacing:.12em}
.walk-track h3{margin:0 0 13px;color:#f6ecdc;font-size:22px;font-weight:400}
.walk-track p{margin:0;color:#bfb6a8;font:400 13px/1.65 Arial,sans-serif}
.demo-confirmation{padding:13vh 7vw;text-align:center;background:var(--demo-paper)}
.confirmation-mark{display:grid;place-items:center;width:74px;height:74px;margin:0 auto 26px;background:var(--demo-vermilion);color:#f8ead7;font-size:38px}
.demo-confirmation .demo-kicker{margin-bottom:18px}
.demo-confirmation h2{max-width:840px;margin:0 auto}
.demo-confirmation>p:not(.demo-kicker){max-width:650px;margin:25px auto;color:#5d554d;font:400 15px/1.7 Arial,sans-serif}
.demo-confirmation>a{display:inline-flex;margin-top:15px;padding:14px 24px;background:var(--demo-ink);color:#f5ead9;text-decoration:none;font:800 10px Arial,sans-serif;letter-spacing:.12em;text-transform:uppercase}
html[lang="ja"] .demo-page{font-family:'Yu Mincho','Hiragino Mincho ProN',serif}
html[lang="ja"] .demo-hero h1,html[lang="ja"] .demo-request h2,html[lang="ja"] .demo-walkthrough h2{letter-spacing:-.02em;line-height:1.12}
html[lang="ja"] .demo-lead,html[lang="ja"] .request-intro>p:not(.demo-kicker){line-height:1.9}
@media(max-width:1050px){
 .demo-request{grid-template-columns:1fr;gap:55px}.request-intro{position:static}.walk-track{grid-template-columns:repeat(2,1fr)}.walk-track article:nth-child(2n){border-right:0}.walk-track article:last-child{grid-column:1/-1;border-top:1px solid rgba(239,228,208,.15)}
 .demo-hero-copy{width:min(720px,72vw)}
}
@media(max-width:760px){
 .demo-main{padding-top:64px}.demo-page .site-header{min-height:64px}.demo-page .primary-nav{display:none}.demo-back{display:none}.demo-header-actions{margin-left:auto}.demo-language button{padding:8px 9px}
 .demo-hero{min-height:calc(100vh - 64px);padding:11vh 7vw 12vh}.demo-hero-copy{width:100%;padding:0}.demo-hero-wash{background:linear-gradient(90deg,rgba(14,13,12,.94),rgba(17,16,14,.72)),linear-gradient(0deg,rgba(17,16,14,.72),transparent 45%)}.demo-hero h1{font-size:clamp(45px,15vw,68px)}.demo-lead{font-size:15px}.demo-promise{grid-template-columns:1fr}.demo-promise span{border-right:0;border-bottom:1px solid rgba(239,228,208,.14)}.demo-promise span:last-child{border-bottom:0}.demo-scroll{right:7vw;bottom:4vh}
 .demo-request{padding:9vh 6vw}.demo-form{padding:25px 20px}.form-grid{grid-template-columns:1fr}.interest-grid{grid-template-columns:1fr 1fr}.demo-request h2,.demo-walkthrough h2,.demo-confirmation h2{font-size:clamp(38px,12vw,54px)}
 .demo-walkthrough{padding:9vh 6vw}.walk-track{grid-template-columns:1fr}.walk-track article,.walk-track article:nth-child(2n),.walk-track article:last-child{min-height:auto;border-right:0;border-top:1px solid rgba(239,228,208,.15);grid-column:auto}.walk-track article:first-child{border-top:0}.walk-track span{margin-bottom:28px}
}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}.demo-submit{transition:none}}

/* DEMO V3 R2 — screen-by-screen viewport contract */
@media (min-width:1051px) and (min-height:760px){
  html{scroll-snap-type:y mandatory;scroll-padding-top:73px}
  .demo-main{overflow:visible}
  .demo-main>section{height:calc(100vh - 73px);min-height:calc(100vh - 73px);scroll-snap-align:start;scroll-snap-stop:always;overflow:hidden}

  .demo-hero{min-height:calc(100vh - 73px);height:calc(100vh - 73px);padding:5vh 7vw 4vh}
  .demo-hero-copy{padding-top:20px;padding-bottom:20px}
  .demo-promise{margin-top:30px}

  .demo-request{align-items:center;padding:3.5vh 7vw;gap:6vw}
  .request-intro{position:static;align-self:center}
  .demo-request h2{font-size:clamp(38px,3.7vw,58px)}
  .request-intro>p:not(.demo-kicker){margin:18px 0 22px;font-size:14px;line-height:1.58}
  .request-notes>div{padding:13px 0}
  .request-notes small{font-size:12px;line-height:1.4}

  .demo-form{align-self:center;padding:25px 32px 23px;max-height:calc(100vh - 115px)}
  .form-head{margin-bottom:18px;padding-bottom:16px}
  .form-seal{flex-basis:46px;width:46px;height:46px;font-size:25px}
  .form-head h3{font-size:22px}
  .form-grid{gap:13px 16px}
  .demo-form label>span,.interest-fieldset legend{margin-bottom:6px;font-size:10px}
  .demo-form input,.demo-form select,.demo-form textarea{padding:10px 11px;font-size:13px}
  .interest-fieldset{margin:18px 0 14px}
  .interest-grid span{min-height:38px;padding:6px 8px;font-size:9px!important}
  .message-label{margin-top:3px}
  .demo-form textarea{min-height:68px;height:68px}
  .form-error{min-height:13px;margin:7px 0 0}
  .demo-submit{margin-top:5px;padding:13px 16px}
  .prototype-note{margin-top:8px;font-size:8px}

  .demo-walkthrough{display:flex;flex-direction:column;justify-content:center;padding:4.5vh 7vw 4vh}
  .walk-head{margin-bottom:30px}
  .demo-walkthrough h2{font-size:clamp(38px,4vw,60px)}
  .walk-track{flex:0 0 auto}
  .walk-track article{min-height:220px;padding:24px 22px 25px}
  .walk-track span{margin-bottom:38px}
  .walk-track h3{font-size:19px;margin-bottom:10px}
  .walk-track p{font-size:12px;line-height:1.55}

  .demo-confirmation{display:flex;flex-direction:column;justify-content:center;padding:6vh 7vw}
}

@media (min-width:1051px) and (max-height:759px){
  html{scroll-snap-type:y proximity;scroll-padding-top:73px}
  .demo-main>section{scroll-snap-align:start}
}

@media (max-width:1050px){
  html{scroll-snap-type:none}
}

/* V3 layout lock — Demo uses the same borderless cinematic header edge */
.demo-page .site-header{border:0 !important;border-bottom:0 !important;box-shadow:none !important;}

/* V3 Demo R3 — conditional success state + optical arrow centering */
.demo-confirmation[hidden]{display:none!important}
.demo-scroll b{
  display:grid;
  place-items:center;
  line-height:1;
  padding:0 0 2px;
  box-sizing:border-box;
}


/* V3 R4 — borderless shared header */
.demo-page .site-header{border:0 !important;border-bottom:0 !important;box-shadow:none !important;}