/* Polarie Works — site styles */
:root{
  --bg:#05070d;
  --bg-elev:#0a101c;
  --ink:#e9f0fb;
  --ink-soft:#b9c6da;
  --muted:#8898b0;
  --line:rgba(151,180,220,.16);
  --line-strong:rgba(151,180,220,.30);
  --ice:#9ad9ff;
  --ice-soft:rgba(154,217,255,.10);
  --max:1120px;
  --radius:22px;
  --serif:"Iowan Old Style","Palatino Linotype",Palatino,Georgia,"Noto Serif JP",serif;
  --sans:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,"Hiragino Sans","Yu Gothic","Noto Sans JP",sans-serif;
  --mono:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  color-scheme:dark;
}

*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--sans);
  font-size:16px;
  line-height:1.8;
  color:var(--ink);
  background:
    radial-gradient(1100px 620px at 78% -12%,rgba(84,146,224,.20),transparent 62%),
    radial-gradient(900px 520px at 6% -4%,rgba(110,102,214,.12),transparent 58%),
    radial-gradient(900px 700px at 50% 108%,rgba(52,104,168,.10),transparent 60%),
    var(--bg);
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
body::before{
  content:"";position:fixed;inset:0;z-index:0;pointer-events:none;
  background-image:
    radial-gradient(circle 1px at 12% 22%,rgba(255,255,255,.62),transparent 1.6px),
    radial-gradient(circle 1px at 68% 12%,rgba(197,224,255,.55),transparent 1.6px),
    radial-gradient(circle 1.2px at 42% 68%,rgba(255,255,255,.42),transparent 1.8px),
    radial-gradient(circle 1px at 86% 54%,rgba(197,224,255,.44),transparent 1.6px),
    radial-gradient(circle 1px at 24% 86%,rgba(255,255,255,.38),transparent 1.6px);
  background-size:420px 420px,560px 560px,700px 700px,480px 480px,640px 640px;
  opacity:.5;
}
header,main,footer{position:relative;z-index:1}

img,svg{max-width:100%}
a{color:var(--ice);text-decoration-thickness:1px;text-underline-offset:3px}
a:hover{color:#cfeaff}
:focus-visible{outline:2px solid var(--ice);outline-offset:3px;border-radius:4px}

.skip{
  position:absolute;left:-9999px;top:0;z-index:100;
  padding:10px 16px;background:var(--ice);color:#041018;font-weight:600;border-radius:0 0 8px 0;
}
.skip:focus{left:0}

/* ---------- language ---------- */
html[data-lang="ja"] .i18n[lang="en"]{display:none!important}
html[data-lang="en"] .i18n[lang="ja"]{display:none!important}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:50;
  background:rgba(5,7,13,.72);
  border-bottom:1px solid var(--line);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
}
.header-in{
  max-width:var(--max);margin:0 auto;padding:15px 24px;
  display:flex;align-items:center;gap:26px;
}
.brand{
  display:inline-flex;align-items:center;gap:11px;
  color:var(--ink);text-decoration:none;
  font-size:12.5px;font-weight:600;letter-spacing:.20em;white-space:nowrap;
}
.brand svg{width:24px;height:24px;flex:none}
.brand:hover{color:#fff}
.nav{display:flex;gap:24px;margin-left:auto}
.nav a{
  color:var(--ink-soft);text-decoration:none;font-size:14px;letter-spacing:.02em;
  transition:color .2s ease;
}
.nav a:hover{color:#fff}
.lang{
  display:flex;align-items:center;gap:2px;padding:2px;
  border:1px solid var(--line-strong);border-radius:999px;
}
.lang button{
  appearance:none;border:0;background:transparent;color:var(--muted);
  font:inherit;font-size:11.5px;letter-spacing:.10em;font-weight:600;
  padding:5px 10px;border-radius:999px;cursor:pointer;
  transition:background .2s ease,color .2s ease;
}
.lang button[aria-pressed="true"]{background:rgba(154,217,255,.16);color:var(--ice)}
.lang button:hover{color:#fff}

/* ---------- hero ---------- */
.hero{
  max-width:var(--max);margin:0 auto;
  padding:clamp(56px,9vw,116px) 24px clamp(40px,6vw,72px);
  display:grid;grid-template-columns:minmax(0,1.06fr) minmax(0,.94fr);
  gap:clamp(28px,5vw,56px);align-items:center;
}
.kicker{
  margin:0;font-family:var(--mono);font-size:11px;letter-spacing:.30em;
  text-transform:uppercase;color:var(--ice);
}
.hero h1{
  margin:18px 0 0;font-family:var(--serif);font-weight:400;
  font-size:clamp(42px,6.4vw,78px);line-height:1.03;letter-spacing:-.018em;
}
.hero .jp{
  margin:20px 0 0;font-size:clamp(17px,2.2vw,21px);
  color:var(--ink-soft);letter-spacing:.06em;
}
.hero .lead{
  margin:22px 0 0;max-width:48ch;color:var(--ink-soft);
  font-size:15.5px;line-height:1.9;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:30px}
.btn{
  display:inline-flex;align-items:center;gap:10px;
  padding:12px 22px;border-radius:999px;border:1px solid var(--line-strong);
  color:var(--ink);text-decoration:none;font-size:14px;letter-spacing:.03em;
  background:transparent;transition:border-color .2s ease,background .2s ease,transform .2s ease;
}
.btn:hover{border-color:var(--ice);color:#fff;transform:translateY(-1px)}
.btn-primary{
  background:linear-gradient(180deg,rgba(178,228,255,.98),rgba(126,196,255,.90));
  border-color:transparent;color:#041018;font-weight:650;
}
.btn-primary:hover{color:#041018;box-shadow:0 10px 30px rgba(126,196,255,.22)}
.btn .arrow{font-size:15px;line-height:1}

.hero-art{position:relative;margin:0}
.hero-art svg{width:100%;height:auto;display:block}
.hero-caption{
  margin:2px 0 0;text-align:center;
  font-family:var(--mono);font-size:10.5px;letter-spacing:.22em;
  text-transform:uppercase;color:var(--muted);
}
.star{animation:twinkle 7s ease-in-out infinite}
.star:nth-of-type(2n){animation-delay:-2.4s}
.star:nth-of-type(3n){animation-delay:-4.1s}
.star:nth-of-type(4n){animation-delay:-5.3s}
@keyframes twinkle{0%,100%{opacity:.55}50%{opacity:1}}
.constellation-line{
  stroke:rgba(154,217,255,.55);stroke-width:1.1;fill:none;
  stroke-dasharray:620;stroke-dashoffset:620;
  animation:draw 2.6s ease-out .25s forwards;
}
@keyframes draw{to{stroke-dashoffset:0}}

/* ---------- sections ---------- */
.section{
  max-width:var(--max);margin:0 auto;
  padding:clamp(52px,7vw,92px) 24px;
  border-top:1px solid var(--line);
  scroll-margin-top:86px;
}
.eyebrow{
  display:flex;align-items:center;gap:14px;margin:0;
  font-family:var(--mono);font-size:10.5px;letter-spacing:.24em;
  text-transform:uppercase;color:var(--muted);
}
.eyebrow::after{content:"";height:1px;flex:1;background:linear-gradient(90deg,var(--line-strong),transparent)}
.section-title{
  margin:16px 0 0;font-family:var(--serif);font-weight:400;
  font-size:clamp(27px,4vw,42px);line-height:1.18;letter-spacing:-.01em;
  max-width:22ch;
}
.section-body{max-width:62ch;margin:20px 0 0;color:var(--ink-soft);font-size:15.5px;line-height:1.95}
.section-body + .section-body{margin-top:12px}

/* ---------- products ---------- */
.product{
  display:grid;grid-template-columns:minmax(0,1.15fr) minmax(0,.85fr);
  margin-top:38px;border:1px solid var(--line);border-radius:var(--radius);
  background:linear-gradient(158deg,rgba(21,33,56,.72),rgba(8,12,21,.92));
  overflow:hidden;
}
.product-main{padding:clamp(26px,4vw,46px)}
.product-label{
  margin:0;font-family:var(--serif);font-size:clamp(30px,4.2vw,44px);
  line-height:1.1;letter-spacing:-.01em;
}
.product-tagline{margin:10px 0 0;color:var(--ice);font-size:15px;letter-spacing:.02em}
.product-copy{margin:18px 0 0;color:var(--ink-soft);font-size:15px;line-height:1.9;max-width:52ch}
.product-side{
  padding:clamp(24px,3.4vw,38px);
  border-left:1px solid var(--line);
  background:radial-gradient(130% 120% at 100% 0%,rgba(154,217,255,.13),transparent 62%);
  display:flex;flex-direction:column;justify-content:center;gap:22px;
}
.tags{display:flex;flex-wrap:wrap;gap:8px;margin:0;padding:0;list-style:none}
.tags li{
  padding:5px 12px;border:1px solid var(--line-strong);border-radius:999px;
  font-size:12px;color:var(--ink-soft);letter-spacing:.03em;background:rgba(255,255,255,.02);
}
.status{display:flex;align-items:center;gap:9px;margin:0;font-size:13px;color:var(--ink-soft)}
.status .dot{
  width:7px;height:7px;border-radius:50%;background:var(--ice);
  box-shadow:0 0 0 4px rgba(154,217,255,.12);flex:none;
  animation:pulse 3.4s ease-in-out infinite;
}
@keyframes pulse{0%,100%{box-shadow:0 0 0 3px rgba(154,217,255,.10)}50%{box-shadow:0 0 0 7px rgba(154,217,255,.03)}}

/* ---------- about ---------- */
.about-grid{display:grid;grid-template-columns:minmax(0,1.1fr) minmax(0,.9fr);gap:clamp(28px,5vw,56px);margin-top:32px}
.facts{margin:0;border-top:1px solid var(--line)}
.facts div{display:flex;justify-content:space-between;gap:20px;padding:13px 0;border-bottom:1px solid var(--line)}
.facts dt{color:var(--muted);font-size:12.5px;letter-spacing:.10em;text-transform:uppercase;flex:none}
.facts dd{margin:0;text-align:right;font-size:14.5px;color:var(--ink-soft);overflow-wrap:anywhere}
.facts dd a{color:var(--ink-soft)}

/* ---------- contact ---------- */
.contact-panel{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;
  gap:24px;margin-top:32px;padding:clamp(24px,4vw,40px);
  border:1px solid var(--line);border-radius:var(--radius);
  background:
    radial-gradient(120% 130% at 0% 0%,rgba(154,217,255,.10),transparent 58%),
    linear-gradient(160deg,rgba(18,28,47,.72),rgba(8,12,21,.92));
}
.contact-panel p{margin:0;color:var(--ink-soft);font-size:15px;max-width:44ch}
.contact-actions{display:flex;flex-wrap:wrap;gap:10px}
.legal-links{display:flex;flex-wrap:wrap;gap:18px;margin-top:22px;font-size:13.5px}
.legal-links a{color:var(--muted)}
.legal-links a:hover{color:var(--ice)}

/* ---------- footer ---------- */
.site-footer{
  max-width:var(--max);margin:0 auto;padding:36px 24px 48px;
  border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;gap:14px 28px;align-items:center;justify-content:space-between;
  color:var(--muted);font-size:12.5px;
}
.footer-brand{display:flex;align-items:center;gap:10px;letter-spacing:.18em;font-size:11.5px;color:var(--ink-soft)}
.footer-brand svg{width:18px;height:18px}
.footer-links{display:flex;flex-wrap:wrap;gap:18px}
.footer-links a{color:var(--muted);text-decoration:none}
.footer-links a:hover{color:var(--ice)}

/* ---------- motion ---------- */
.js .reveal{opacity:0;transform:translateY(14px);transition:opacity .75s ease,transform .75s ease}
.js .reveal.is-visible{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  .star,.status .dot{animation:none}
  .constellation-line{animation:none;stroke-dashoffset:0}
  .js .reveal{opacity:1;transform:none;transition:none}
  .btn:hover{transform:none}
}

/* ---------- privacy / document ---------- */
.doc-wrap{max-width:840px;margin:0 auto;padding:clamp(36px,6vw,72px) 24px 80px}
.breadcrumb{font-size:12.5px;color:var(--muted);letter-spacing:.04em}
.breadcrumb a{color:var(--muted);text-decoration:none}
.breadcrumb a:hover{color:var(--ice)}
.doc h1{
  margin:16px 0 0;font-family:var(--serif);font-weight:400;
  font-size:clamp(28px,4.4vw,40px);line-height:1.2;
}
.doc-meta{margin:14px 0 0;color:var(--muted);font-size:13.5px}
.notice{
  margin:26px 0 0;padding:16px 18px;border-left:2px solid var(--ice);
  background:var(--ice-soft);border-radius:0 12px 12px 0;
  font-size:13.5px;line-height:1.8;color:var(--ink-soft);
}
.notice p{margin:6px 0 0}
.notice strong{color:var(--ink)}
.toc{
  margin:30px 0 0;padding:18px 20px;border:1px solid var(--line);border-radius:14px;
  display:grid;grid-template-columns:1fr 1fr;gap:4px 24px;
  font-size:13px;
}
.toc a{color:var(--ink-soft);text-decoration:none;padding:3px 0}
.toc a:hover{color:var(--ice)}
.doc h2{
  margin:44px 0 0;padding-bottom:9px;border-bottom:1px solid var(--line);
  font-size:17.5px;font-weight:600;letter-spacing:.01em;scroll-margin-top:90px;
}
.doc h3{margin:24px 0 0;font-size:14.5px;font-weight:600;color:var(--ice)}
.doc p{margin:13px 0 0;font-size:15px;line-height:1.95;color:var(--ink-soft)}
.doc ol,.doc ul{margin:10px 0 0;padding-left:1.5em;color:var(--ink-soft);font-size:15px}
.doc li{margin:6px 0;line-height:1.9}
.doc li>ol,.doc li>ul{margin:4px 0 0}
.doc .lead-box{
  margin:22px 0 0;padding:16px 18px;border:1px solid var(--line);border-radius:12px;
  background:rgba(255,255,255,.02);
}
.doc .contact-block{margin:40px 0 0}
.doc .back{margin:44px 0 0;font-size:13.5px}

@media print{
  body{background:#fff;color:#111}
  body::before,.site-header,.site-footer,.notice,.toc,.back{display:none}
  .doc-wrap{max-width:none;padding:0}
  .doc p,.doc li,.doc h1,.doc h2,.doc h3{color:#111}
  .doc h2{border-color:#bbb}
}

/* ---------- responsive ---------- */
@media (max-width:900px){
  .hero{grid-template-columns:1fr;padding-top:clamp(44px,8vw,72px)}
  .hero-art{order:2;max-width:520px;margin:4px auto 0}
  .product{grid-template-columns:1fr}
  .product-side{border-left:0;border-top:1px solid var(--line)}
  .about-grid{grid-template-columns:1fr}
  .toc{grid-template-columns:1fr}
}
@media (max-width:820px){
  .header-in{flex-wrap:wrap;gap:10px 16px;padding:13px 18px}
  .nav{order:3;width:100%;margin-left:0;gap:20px;overflow-x:auto;padding-bottom:2px;scrollbar-width:none}
  .nav::-webkit-scrollbar{display:none}
  .lang{margin-left:auto}
}
@media (max-width:640px){
  .hero{padding-left:18px;padding-right:18px}
  .section{padding-left:18px;padding-right:18px}
  .site-footer{padding-left:18px;padding-right:18px}
  .doc-wrap{padding-left:18px;padding-right:18px}
  .cta-row,.hero-actions{gap:10px}
  .btn{padding:11px 18px;font-size:13.5px}
  .facts div{flex-direction:column;gap:3px}
  .facts dd{text-align:left}
}