/* ============================================================
   JANE TOYS — Cool Minimal (light grey / black / restrained)
   monochrome · hairlines · generous whitespace · sans-serif
   ============================================================ */

:root{
  --paper:#f0f0ed;      /* cool off-white */
  --paper-2:#e8e8e4;
  --surface:#f7f7f5;    /* card surface */
  --ink:#171614;        /* near-black */
  --ink-2:#4b4a45;
  --mute:#8d8c85;
  --line:rgba(23,22,20,.14);
  --line-2:rgba(23,22,20,.08);
  --accent:#171614;     /* monochrome accent = ink */
  --radius:2px;
  --maxw:1220px;
  --ff:"Inter","Noto Sans SC","Noto Sans JP",-apple-system,sans-serif;
}
:root[data-theme="dark"]{
  --paper:#121211;
  --paper-2:#1a1a18;
  --surface:#1a1a18;
  --ink:#f1efe9;
  --ink-2:#c3c1ba;
  --mute:#87857e;
  --line:rgba(241,239,233,.16);
  --line-2:rgba(241,239,233,.08);
  --accent:#f1efe9;
}

*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  background:var(--paper);
  color:var(--ink);
  font-family:var(--ff);
  font-weight:400;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  letter-spacing:.005em;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
.container{max-width:var(--maxw);margin:0 auto;padding:0 48px}
@media(max-width:640px){.container{padding:0 26px}}

/* ---------- shared type ---------- */
.eyebrow,.section-index,.card-tag,.explore-more,.stat-label,.p-en{
  font-weight:500;text-transform:uppercase;letter-spacing:.26em;font-size:11px;color:var(--mute);
}
.section-title{
  font-weight:300;font-size:clamp(30px,4vw,50px);line-height:1.1;letter-spacing:-.01em;
}
.section-lead{max-width:620px;color:var(--ink-2);font-weight:300;font-size:17px;margin-top:18px}

/* ---------- buttons ---------- */
.btn{
  display:inline-block;font-family:var(--ff);font-weight:500;font-size:12.5px;
  text-transform:uppercase;letter-spacing:.18em;padding:14px 30px;border-radius:var(--radius);
  border:1px solid var(--ink);cursor:pointer;transition:.25s ease;
}
.btn-primary{background:var(--ink);color:var(--paper)}
.btn-primary:hover{background:transparent;color:var(--ink)}
.btn-ghost{background:transparent;color:var(--ink)}
.btn-ghost:hover{background:var(--ink);color:var(--paper)}

/* ============================================================
   HEADER
   ============================================================ */
.site-header{
  position:sticky;top:0;z-index:50;background:color-mix(in srgb,var(--paper) 88%, transparent);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
}
.nav{display:flex;align-items:center;justify-content:space-between;height:74px}
.brand{display:flex;align-items:center;gap:12px}
.brand-logo{width:38px;height:38px;object-fit:contain}
.brand-name{display:flex;flex-direction:column;line-height:1.1;font-weight:600;font-size:17px;letter-spacing:.02em}
.brand-name small{font-weight:400;font-size:9px;letter-spacing:.34em;color:var(--mute);text-transform:uppercase;margin-top:3px}

.nav-links{list-style:none;display:flex;align-items:center;gap:30px}
.nav-links > li > a{
  font-weight:400;font-size:13px;letter-spacing:.06em;color:var(--ink-2);padding:6px 0;position:relative;transition:color .2s;
}
.nav-links > li > a:hover{color:var(--ink)}
.nav-links > li > a.active{color:var(--ink)}
.nav-links > li > a.active::after{
  content:"";position:absolute;left:0;right:0;bottom:-2px;height:1px;background:var(--ink);
}
.nav-controls{display:flex;align-items:center;gap:16px;margin-left:6px}
.lang-switch{display:flex;gap:2px;border:1px solid var(--line);border-radius:999px;padding:3px}
.lang-btn{
  border:none;background:transparent;color:var(--mute);font-family:var(--ff);font-size:12px;font-weight:500;
  padding:5px 11px;border-radius:999px;cursor:pointer;letter-spacing:.04em;transition:.2s;
}
.lang-btn.active{background:var(--ink);color:var(--paper)}
.theme-toggle{
  border:1px solid var(--line);background:transparent;width:34px;height:34px;border-radius:50%;
  cursor:pointer;font-size:14px;line-height:1;display:flex;align-items:center;justify-content:center;
}
.nav-toggle{display:none;flex-direction:column;gap:5px;background:none;border:none;cursor:pointer;padding:8px}
.nav-toggle span{width:24px;height:1.5px;background:var(--ink);transition:.25s}

@media(max-width:900px){
  .nav-toggle{display:flex}
  .nav-links{
    position:absolute;top:74px;left:0;right:0;background:var(--paper);border-bottom:1px solid var(--line);
    flex-direction:column;align-items:flex-start;gap:0;padding:12px 26px 22px;
    max-height:0;overflow:hidden;transition:max-height .35s ease;
  }
  .nav-links.open{max-height:560px}
  .nav-links > li{width:100%}
  .nav-links > li > a{display:block;padding:13px 0;font-size:15px;border-bottom:1px solid var(--line-2)}
  .nav-controls{padding-top:16px}
}

/* ============================================================
   HERO
   ============================================================ */
.hero{border-bottom:1px solid var(--line)}
.hero-inner{display:grid;grid-template-columns:1.35fr .65fr;gap:60px;align-items:center;
  padding:clamp(60px,11vw,130px) 0}
.eyebrow{display:block;margin-bottom:26px}
.hero-title{font-weight:300;font-size:clamp(38px,6vw,78px);line-height:1.04;letter-spacing:-.02em}
.hero-title .accent{color:var(--mute);font-weight:300}
.hero-slogan{margin-top:26px;font-weight:400;font-size:15px;letter-spacing:.22em;text-transform:uppercase;color:var(--ink-2)}
.hero-sub{margin-top:22px;max-width:540px;color:var(--ink-2);font-weight:300;font-size:16.5px}
.hero-actions{display:flex;gap:14px;margin-top:40px;flex-wrap:wrap}
.hero-logo{display:flex;justify-content:center;align-items:center}
.hero-logo img{width:min(230px,68%);height:auto;object-fit:contain}
@media(max-width:820px){
  .hero-inner{grid-template-columns:1fr;gap:36px}
  .hero-logo{order:-1;justify-content:flex-start}
  .hero-logo img{width:130px}
}

/* ============================================================
   STATS
   ============================================================ */
.stats-bar{border-bottom:1px solid var(--line)}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr)}
.stat{padding:52px 30px;text-align:center;border-right:1px solid var(--line)}
.stat:last-child{border-right:none}
.stat-num{display:block;font-weight:300;font-size:clamp(34px,4vw,52px);letter-spacing:-.01em;line-height:1}
.stat-num small{font-size:.42em;font-weight:400;color:var(--mute);margin-left:2px;letter-spacing:0}
.stat-label{display:block;margin-top:14px}
@media(max-width:720px){
  .stats-grid{grid-template-columns:1fr 1fr}
  .stat{border-bottom:1px solid var(--line)}
  .stat:nth-child(2){border-right:none}
}

/* ============================================================
   SECTION scaffold
   ============================================================ */
.section{padding:clamp(70px,10vw,120px) 0}
.section-index{display:block;margin-bottom:18px}
.subsection-title{font-weight:300;font-size:26px;margin:80px 0 30px;letter-spacing:-.01em}

/* ============================================================
   CARDS (generic / explore / bases / quality / terms)
   ============================================================ */
.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:0;margin-top:56px;
  border-top:1px solid var(--line);border-left:1px solid var(--line)}
.card{
  background:transparent;border-right:1px solid var(--line);border-bottom:1px solid var(--line);
  transition:background .25s ease;
}
.card:hover{background:var(--surface)}
.card-body{padding:40px 34px}
.card-body h3{font-weight:500;font-size:20px;letter-spacing:-.005em}
.card-body p{color:var(--ink-2);font-weight:300;font-size:14.5px;margin-top:12px}
.card-tag{display:block;margin-bottom:16px}
.scale{color:var(--mute)!important;font-weight:400!important;font-size:12.5px!important;
  letter-spacing:.04em;margin-top:6px!important}

/* explore cards (home) */
.explore-card{display:block}
.explore-more{display:inline-block;margin-top:22px;color:var(--ink)}

@media(max-width:900px){.cards{grid-template-columns:1fr 1fr}}
@media(max-width:600px){.cards{grid-template-columns:1fr}}

/* ============================================================
   ABOUT
   ============================================================ */
.about-grid{display:grid;grid-template-columns:1fr 1fr;gap:64px;margin-top:56px;align-items:start}
.about-text p{color:var(--ink-2);font-weight:300;font-size:16.5px;margin-bottom:22px}
.about-text strong{font-weight:600;color:var(--ink)}
.tag-list{list-style:none;display:flex;flex-wrap:wrap;gap:10px;margin-top:30px}
.tag-list li{
  font-size:12px;letter-spacing:.08em;color:var(--ink-2);
  border:1px solid var(--line);border-radius:999px;padding:7px 16px;
}
.about-photo{margin:0}
.about-photo img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:var(--radius);filter:grayscale(.15)}
.about-photo figcaption{margin-top:12px;font-size:11px;letter-spacing:.24em;text-transform:uppercase;color:var(--mute)}
@media(max-width:820px){.about-grid{grid-template-columns:1fr;gap:36px}}

/* ============================================================
   GALLERY
   ============================================================ */
.gallery{display:grid;grid-template-columns:repeat(4,1fr);gap:4px}
.gallery figure{margin:0;position:relative;overflow:hidden;aspect-ratio:4/5;background:var(--paper-2)}
.gallery img{width:100%;height:100%;object-fit:cover;filter:grayscale(.2);transition:transform 1s ease,filter .5s ease}
.gallery figure:hover img{transform:scale(1.05);filter:grayscale(0)}
.gallery figcaption{
  position:absolute;left:16px;bottom:14px;color:#fff;z-index:2;
  font-size:11px;letter-spacing:.14em;text-transform:uppercase;font-weight:500;
}
.gallery figure::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,transparent 55%,rgba(0,0,0,.5))}
@media(max-width:820px){.gallery{grid-template-columns:1fr 1fr}}

/* ============================================================
   PROCESS — editorial numbered flow
   ============================================================ */
.process-flow{
  list-style:none;display:grid;grid-template-columns:repeat(7,1fr);
  margin-top:64px;border-top:1px solid var(--ink);
}
.process-flow li{
  position:relative;padding:30px 16px 40px;border-right:1px solid var(--line);
}
.process-flow li:last-child{border-right:none}
.process-flow li::before{
  content:"";position:absolute;top:-4px;left:0;width:7px;height:7px;border-radius:50%;background:var(--ink);
}
.step-no{display:block;font-weight:200;font-size:40px;letter-spacing:.01em;color:var(--ink)}
.step-name{display:block;margin-top:26px;font-weight:500;font-size:15px;letter-spacing:.01em}
@media(max-width:900px){
  .process-flow{grid-template-columns:1fr 1fr}
  .process-flow li{border-right:none;border-bottom:1px solid var(--line)}
  .process-flow li:nth-child(odd){border-right:1px solid var(--line)}
}
@media(max-width:520px){.process-flow{grid-template-columns:1fr}.process-flow li:nth-child(odd){border-right:none}}

/* ============================================================
   PRODUCTS
   ============================================================ */
.product-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:4px;margin-top:56px}
.product{margin:0}
.product-img{position:relative;overflow:hidden;aspect-ratio:3/4;background:var(--paper-2)}
.product-img img{width:100%;height:100%;object-fit:cover;filter:grayscale(.12);transition:transform 1s ease,filter .5s}
.product:hover .product-img img{transform:scale(1.05);filter:grayscale(0)}
.product figcaption{padding:16px 2px 0;display:flex;flex-direction:column;gap:4px}
.p-cn{font-weight:500;font-size:15px}
.p-en{color:var(--mute)}
@media(max-width:820px){.product-grid{grid-template-columns:1fr 1fr}}

/* ============================================================
   BRANDS
   ============================================================ */
.brand-grid{display:grid;grid-template-columns:1fr 1fr;gap:0;margin-top:56px;
  border-top:1px solid var(--line);border-left:1px solid var(--line)}
.brand-card{border-right:1px solid var(--line);border-bottom:1px solid var(--line);padding:46px 40px}
.brand-name-lg{font-weight:400;font-size:30px;letter-spacing:-.01em}
.brand-name-lg span{color:var(--mute);font-size:.6em;margin-left:10px;letter-spacing:.02em}
.brand-info{margin-top:30px;display:grid;gap:0}
.brand-info > div{display:grid;grid-template-columns:130px 1fr;gap:20px;padding:16px 0;border-top:1px solid var(--line-2)}
.brand-info dt{font-size:11px;letter-spacing:.2em;text-transform:uppercase;color:var(--mute);font-weight:500}
.brand-info dd{color:var(--ink-2);font-weight:300;font-size:14.5px}
@media(max-width:760px){.brand-grid{grid-template-columns:1fr}}

/* ============================================================
   BUSINESS FLOW (contact)
   ============================================================ */
.biz-flow{list-style:none;margin-top:56px;border-top:1px solid var(--line)}
.biz-flow li{display:grid;grid-template-columns:90px 1fr;gap:30px;align-items:start;
  padding:34px 0;border-bottom:1px solid var(--line)}
.biz-no{font-weight:200;font-size:44px;line-height:1;color:var(--ink)}
.biz-body h3{font-weight:500;font-size:19px}
.biz-body p{color:var(--ink-2);font-weight:300;font-size:15px;margin-top:8px;max-width:640px}
@media(max-width:560px){.biz-flow li{grid-template-columns:60px 1fr;gap:18px}.biz-no{font-size:32px}}

/* terms cards reuse .cards/.card */
.term-value{color:var(--ink)!important;font-weight:400!important;font-size:15px!important;margin-top:10px!important}

/* ============================================================
   INQUIRY FORM
   ============================================================ */
.glass{background:transparent}
.inquiry-form{margin-top:48px;border-top:1px solid var(--line);padding-top:40px}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:30px 40px}
.inquiry-form label{display:flex;flex-direction:column;gap:10px}
.inquiry-form label span{font-size:11px;letter-spacing:.2em;text-transform:uppercase;color:var(--mute);font-weight:500}
.inquiry-form input,.inquiry-form textarea{
  font-family:var(--ff);font-size:15px;color:var(--ink);background:transparent;
  border:none;border-bottom:1px solid var(--line);padding:8px 0;transition:border-color .25s;resize:vertical;
}
.inquiry-form input:focus,.inquiry-form textarea:focus{outline:none;border-color:var(--ink)}
.form-wide{grid-column:1/-1}
.inquiry-form button{margin-top:36px}
.form-note{margin-top:18px;font-size:12.5px;color:var(--mute);font-weight:300}
@media(max-width:640px){.form-grid{grid-template-columns:1fr}}

/* ============================================================
   FAQ
   ============================================================ */
.faq-list{margin-top:48px;border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item summary{
  list-style:none;cursor:pointer;padding:26px 40px 26px 0;position:relative;
  font-weight:500;font-size:17px;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:"+";position:absolute;right:4px;top:24px;font-weight:300;font-size:22px;color:var(--mute);transition:transform .25s}
.faq-item[open] summary::after{content:"\2013"}
.faq-item p{padding:0 40px 28px 0;color:var(--ink-2);font-weight:300;font-size:15px;margin-top:-6px}

/* ============================================================
   CTA
   ============================================================ */
.cta{background:var(--ink);color:var(--paper);padding:clamp(70px,10vw,120px) 0}
.cta-inner{text-align:center;max-width:820px;margin:0 auto}
.cta-title{font-weight:300;font-size:clamp(28px,4vw,46px);letter-spacing:-.01em;color:var(--paper)}
.cta-sub{margin:24px auto 0;color:color-mix(in srgb,var(--paper) 72%,transparent);font-weight:300;font-size:16px;max-width:640px}
.cta .hero-actions{justify-content:center;margin-top:40px}

/* contact CTA cards (contact page bottom) */
.contact-cards{display:flex;justify-content:center;margin-top:44px}
.contact-cards-single{max-width:460px;margin-inline:auto}
.contact-card{
  border:1px solid color-mix(in srgb,var(--paper) 30%,transparent);border-radius:var(--radius);
  padding:40px 44px;text-align:center;width:100%;
}
.contact-card h3{font-weight:500;font-size:14px;letter-spacing:.18em;text-transform:uppercase;color:color-mix(in srgb,var(--paper) 70%,transparent)}
.contact-email{margin:16px 0 14px}
.contact-email a{font-weight:300;font-size:20px;letter-spacing:.02em;color:var(--paper);
  border-bottom:1px solid color-mix(in srgb,var(--paper) 40%,transparent);padding-bottom:4px}
.contact-tag{font-size:11px;letter-spacing:.18em;text-transform:uppercase;color:color-mix(in srgb,var(--paper) 55%,transparent)}

/* ============================================================
   FOOTER
   ============================================================ */
.site-footer{border-top:1px solid var(--line);padding:56px 0}
.footer-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;flex-wrap:wrap}
.footer-brand{display:flex;align-items:center;gap:14px;font-weight:500;font-size:15px}
.footer-logo{width:30px;height:30px;object-fit:contain}
.footer-copy{font-size:11.5px;letter-spacing:.14em;text-transform:uppercase;color:var(--mute)}

/* ============================================================
   LOGO — dark theme adapts monochrome emblem
   ============================================================ */
:root[data-theme="dark"] .brand-logo,
:root[data-theme="dark"] .footer-logo,
:root[data-theme="dark"] .hero-logo img{filter:invert(1)}

/* ============================================================
   INTRO logo animation (home) — calm, minimal
   ============================================================ */
.intro-overlay{position:fixed;inset:0;z-index:9999;display:grid;place-items:center;pointer-events:none}
.intro-overlay.fade{opacity:0;transition:opacity .5s ease}
.intro-logo{width:min(230px,46vw);height:auto;will-change:transform,opacity}
:root[data-theme="dark"] .intro-logo{filter:invert(1)}
@media(prefers-reduced-motion:reduce){.intro-overlay{display:none}}