/* =========================================================
   PRISMO — Common stylesheet
   Tokens / Typography / Layout / Cards / Buttons / Common parts
   ========================================================= */

/* ---- Fonts ---- */
@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+JP:wght@400;500;700;900&family=Space+Grotesk:wght@400;500;600;700&display=swap');

/* ---- Tokens ---- */
:root{
  --white:#FFFFFF;
  --bg:#FDFDFC;           /* site background */
  --ink:#131313;          /* primary text / black */
  --gray:#4A4946;         /* body gray (darker for readability) */
  --gray-soft:#7C7A75;    /* captions */
  --line:#E5E3DF;         /* card / divider border */
  --line-strong:#D8D6D1;
  --bg-soft:#F5F4F1;      /* image fallback / soft panels */
  --bg-panel:#FAF9F7;
  --orange:#E9501F;       /* accent — CTA / numbers / emphasis only */
  --orange-dark:#CB4014;
  --band:#131313;         /* black band — CTA bar */
  --footer-bg:#F9F8F6;    /* footer panel */
  --band-line:#34322D;

  --font-jp:"Noto Sans JP",sans-serif;
  --font-en:"Space Grotesk","Noto Sans JP",sans-serif;

  --container:1200px;
  --radius:4px;
  --radius-sm:3px;
}

/* ---- Reset ---- */
*{box-sizing:border-box;margin:0;padding:0;}
html{-webkit-text-size-adjust:100%;}
body{
  font-family:var(--font-jp);
  color:var(--ink);
  background:var(--bg);
  line-height:1.7;
  font-weight:500;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
a{color:inherit;text-decoration:none;}
img{display:block;max-width:100%;}
ul{list-style:none;}
button{font-family:inherit;cursor:pointer;}

/* ---- Layout ---- */
.container{
  width:100%;
  max-width:var(--container);
  margin-inline:auto;
  padding-inline:32px;
}
.section{padding-block:84px;}
.section--tight{padding-block:56px;}
.divider{height:1px;background:var(--line);border:0;}

/* =========================================================
   Typography
   ========================================================= */

/* Section label — number + EN label (e.g. 01 SERVICE) */
.label{
  font-family:var(--font-en);
  font-size:12px;
  font-weight:600;
  letter-spacing:.18em;
  text-transform:uppercase;
  color:var(--ink);
  display:inline-flex;
  align-items:center;
  gap:9px;
  margin-bottom:18px;
}
.label .num{
  color:var(--orange);
  font-weight:700;
}
.label .slash{color:var(--gray-soft);font-weight:500;}

/* Headings */
.h1{font-size:44px;font-weight:900;line-height:1.32;letter-spacing:.01em;}
.h2{font-size:34px;font-weight:900;line-height:1.4;letter-spacing:.01em;}
.h3{font-size:21px;font-weight:700;line-height:1.5;}
.h4{font-size:17px;font-weight:700;line-height:1.6;}
.lead{font-size:15.5px;color:var(--gray);line-height:1.95;font-weight:500;}
.body{font-size:14.5px;color:var(--gray);line-height:1.9;font-weight:500;}
.cap{font-size:12.5px;color:var(--gray-soft);font-weight:500;}
.text-pretty{text-wrap:pretty;}

/* Section heading block (label + heading + optional lead) */
.section-head{margin-bottom:40px;max-width:760px;}
.section-head .h2{margin-bottom:0;}
.section-head .lead{margin-top:18px;}

/* =========================================================
   Buttons
   ========================================================= */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:12px;
  font-family:var(--font-jp);
  font-weight:700;
  font-size:14px;
  line-height:1;
  padding:15px 24px;
  border-radius:var(--radius-sm);
  border:1.5px solid transparent;
  transition:background .18s ease,color .18s ease,border-color .18s ease,transform .18s ease;
  white-space:nowrap;
}
.btn .arrow{font-family:var(--font-en);font-weight:500;transition:transform .18s ease;}
.btn:hover .arrow{transform:translateX(4px);}
.btn-primary{background:var(--orange);color:#fff;}
.btn-primary:hover{background:var(--orange-dark);}
.btn-outline{background:transparent;color:var(--ink);border-color:var(--line-strong);}
.btn-outline:hover{border-color:var(--ink);}
.btn-light{background:#fff;color:var(--ink);}
.btn-light:hover{background:#f1efeb;}
.btn-sm{padding:11px 18px;font-size:13px;gap:8px;}
.btn-block{width:100%;}

/* =========================================================
   Cards
   ========================================================= */
.card{
  background:var(--white);
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:28px;
  transition:border-color .18s ease,transform .18s ease;
}
.card--hover:hover{border-color:var(--line-strong);transform:translateY(-2px);}
.card__num{
  font-family:var(--font-en);
  font-size:13px;
  font-weight:700;
  color:var(--orange);
  letter-spacing:.05em;
  margin-bottom:14px;
  display:block;
}
.card__title{font-size:18px;font-weight:700;margin-bottom:10px;}
.card__text{font-size:13.5px;color:var(--gray);line-height:1.85;}

/* Grids */
.grid{display:grid;gap:20px;}
.grid-2{grid-template-columns:repeat(2,1fr);}
.grid-3{grid-template-columns:repeat(3,1fr);}
.grid-4{grid-template-columns:repeat(4,1fr);}

/* =========================================================
   Tiles & Boxes (shared vocabulary)
   ========================================================= */

/* Stat tile — big number + label (home metrics) */
.stat-row{display:grid;grid-template-columns:repeat(4,1fr);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;background:var(--white);}
.stat{padding:26px 28px;border-right:1px solid var(--line);}
.stat:last-child{border-right:0;}
.stat__num{font-family:var(--font-en);font-size:38px;font-weight:700;line-height:1;letter-spacing:-.01em;}
.stat__num .u{color:var(--orange);}
.stat__label{font-size:12.5px;color:var(--gray);margin-top:10px;}

/* Feature tile — bordered row: icon + label (対応領域) */
.feat-tile{display:flex;align-items:center;gap:16px;padding:18px 22px;border:1px solid var(--line);border-radius:var(--radius);background:var(--white);transition:border-color .18s ease;}
.feat-tile:hover{border-color:var(--line-strong);}
.feat-tile .icon-box{width:42px;height:42px;}
.feat-tile__label{font-size:15px;font-weight:700;}

/* Method tile — title + desc + corner icon (点検手法) */
.method-tile{position:relative;padding:22px;border:1px solid var(--line);border-radius:var(--radius);background:var(--white);}
.method-tile__title{font-size:15px;font-weight:700;margin-bottom:8px;}
.method-tile__text{font-size:12.5px;color:var(--gray);line-height:1.8;max-width:80%;}
.method-tile .icon-box{position:absolute;top:18px;right:18px;width:40px;height:40px;}

/* Step tile — STEP label + title + desc + 目安 (workflow) */
.step-tile{border:1px solid var(--line);border-radius:var(--radius);background:var(--white);padding:22px;display:flex;flex-direction:column;gap:12px;}
.step-tile__no{font-family:var(--font-en);font-size:11px;font-weight:700;letter-spacing:.12em;color:var(--orange);}
.step-tile__icon{width:44px;height:44px;display:grid;place-items:center;border:1px solid var(--line);border-radius:50%;background:var(--bg-panel);}
.step-tile__title{font-size:16px;font-weight:700;}
.step-tile__text{font-size:12.5px;color:var(--gray);line-height:1.8;flex:1;}
.step-tile__eta{font-family:var(--font-en);font-size:12px;font-weight:600;color:var(--ink);background:var(--bg-soft);border-radius:99px;padding:6px 12px;align-self:flex-start;}
.step-arrow{display:grid;place-items:center;color:var(--gray-soft);font-family:var(--font-en);font-size:18px;}

/* News row — date + tag + title */
.news-list{border-top:1px solid var(--line);}
.news-row{display:flex;align-items:center;gap:22px;padding:18px 4px;border-bottom:1px solid var(--line);transition:background .15s ease;}
.news-row:hover{background:var(--bg-panel);}
.news-row__date{font-family:var(--font-en);font-size:13px;color:var(--gray);letter-spacing:.04em;flex:none;width:88px;}
.news-row__tag{font-size:11px;font-weight:700;color:var(--orange);border:1px solid var(--orange);border-radius:99px;padding:3px 11px;flex:none;}
.news-row__title{font-size:14px;font-weight:500;color:var(--ink);}

/* Spec card — equipment (number + title + image + spec list) */
.spec-card{border:1px solid var(--line);border-radius:var(--radius);background:var(--white);overflow:hidden;}
.spec-card__head{display:flex;align-items:baseline;gap:10px;padding:20px 22px 0;}
.spec-card__no{font-family:var(--font-en);font-size:13px;font-weight:700;color:var(--orange);}
.spec-card__title{font-size:17px;font-weight:700;}
.spec-card__media{margin:16px 22px;aspect-ratio:16/10;}
.spec-card__specs{list-style:none;padding:0 22px 22px;display:flex;flex-direction:column;gap:7px;}
.spec-card__specs li{font-size:12.5px;color:var(--gray);padding-left:16px;position:relative;}
.spec-card__specs li::before{content:"";position:absolute;left:0;top:8px;width:6px;height:6px;border:1px solid var(--orange);border-radius:50%;}
.spec-card__badge{font-size:11px;font-weight:700;color:var(--gray);background:var(--bg-soft);border-radius:99px;padding:4px 11px;}

/* Tabs — filter (works) */
.tabs{display:flex;gap:8px;flex-wrap:wrap;}
.tab{font-size:13px;font-weight:700;color:var(--gray);background:var(--white);border:1px solid var(--line);border-radius:99px;padding:9px 18px;transition:all .15s ease;}
.tab:hover{border-color:var(--line-strong);color:var(--ink);}
.tab.is-active{background:var(--orange);border-color:var(--orange);color:#fff;}

/* Work tile — image with caption bar overlay */
.work-tile{position:relative;border-radius:var(--radius);overflow:hidden;aspect-ratio:3/2;}
.work-tile .img-frame{position:absolute;inset:0;border-radius:0;}
.work-tile__cap{position:absolute;left:0;right:0;bottom:0;padding:14px 16px;background:linear-gradient(transparent,rgba(19,19,19,.82));color:#fff;font-size:13px;font-weight:700;letter-spacing:.02em;z-index:1;}

/* Cert / pill row — 認証・許可 */
.cert-row{display:flex;flex-wrap:wrap;gap:0;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;}
.cert{flex:1;min-width:160px;text-align:center;font-size:14px;font-weight:700;padding:18px 16px;border-right:1px solid var(--line);}
.cert:last-child{border-right:0;}

/* Info table — 会社概要 */
.info-table{width:100%;border-collapse:collapse;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;}
.info-table th,.info-table td{text-align:left;padding:15px 20px;border-bottom:1px solid var(--line);font-size:14px;vertical-align:top;}
.info-table tr:last-child th,.info-table tr:last-child td{border-bottom:0;}
.info-table th{width:170px;background:var(--bg-panel);font-weight:700;color:var(--ink);}
.info-table td{color:var(--gray);font-weight:500;}

/* Check list — 許認可・登録 */
.check-list{display:flex;flex-direction:column;gap:14px;}
.check-list li{display:flex;align-items:flex-start;gap:12px;font-size:14px;font-weight:500;}
.check-list .ck{width:20px;height:20px;flex:none;margin-top:2px;border-radius:50%;background:var(--orange);display:grid;place-items:center;}
.check-list .ck svg{width:12px;height:12px;stroke:#fff;stroke-width:2.4;fill:none;}

/* Coordinate overlay — hero badge */
.coord{font-family:var(--font-en);font-size:12px;font-weight:600;letter-spacing:.06em;color:#fff;background:rgba(19,19,19,.55);backdrop-filter:blur(4px);border:1px solid rgba(255,255,255,.25);border-radius:var(--radius-sm);padding:9px 13px;line-height:1.5;}

/* Grey panel — soft container, can nest boxes (box-in-box) */
.panel{background:var(--bg-soft);border:1px solid var(--line);border-radius:var(--radius);padding:30px 32px;}
.panel--plain{background:var(--bg-panel);}
.panel__title{font-size:16px;font-weight:700;margin-bottom:12px;}
.panel__text{font-size:13.5px;color:var(--gray);line-height:1.9;}
/* white boxes sitting inside a grey panel */
.panel .inset{background:var(--white);border:1px solid var(--line);border-radius:var(--radius-sm);padding:18px 20px;}
.panel .cert-row,.panel .info-table,.panel .stat-row,.panel .spec-card{background:var(--white);}


/* =========================================================
   Icons (line)
   ========================================================= */
.icon{
  width:26px;height:26px;
  stroke:var(--ink);
  stroke-width:1.6;
  fill:none;
  stroke-linecap:round;
  stroke-linejoin:round;
  flex:none;
}
.icon-box{
  width:48px;height:48px;
  border:1px solid var(--line);
  border-radius:var(--radius-sm);
  display:grid;place-items:center;
  background:var(--bg-panel);
}

/* =========================================================
   Image frame with fallback label
   ========================================================= */
.img-frame{
  position:relative;
  background:var(--bg-soft);
  overflow:hidden;
  border-radius:var(--radius);
}
.img-frame img{
  position:absolute;inset:0;
  width:100%;height:100%;
  object-fit:cover;
  transition:opacity .3s ease;
}
.img-frame img.is-failed{opacity:0;}
.img-frame__label{
  position:absolute;inset:0;
  display:grid;place-items:center;
  font-family:var(--font-en);
  font-size:12px;font-weight:600;
  letter-spacing:.12em;
  color:var(--gray-soft);
  text-transform:uppercase;
  padding:12px;text-align:center;
  z-index:0;
}

/* =========================================================
   Common part — Header
   ========================================================= */
.site-header{
  position:sticky;top:0;z-index:50;
  background:rgba(253,253,252,.9);
  backdrop-filter:saturate(180%) blur(8px);
  border-bottom:1px solid var(--line);
}
.site-header__inner{
  display:flex;align-items:center;
  height:74px;gap:32px;
}
.logo{display:flex;flex-direction:column;justify-content:center;align-items:flex-start;line-height:1;}
.logo__name{font-family:var(--font-en);font-weight:700;font-size:23px;letter-spacing:.04em;color:var(--ink);}
.logo__img{height:25px;width:auto;display:block;}
.site-nav{display:flex;align-items:center;gap:22px;margin-left:auto;}
.site-nav a{font-size:13.5px;font-weight:700;color:var(--ink);position:relative;padding-block:6px;}
.site-nav a::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;
  background:var(--orange);transform:scaleX(0);transform-origin:left;transition:transform .2s ease;
}
.site-nav a:hover::after,.site-nav a[aria-current]::after{transform:scaleX(1);}
.site-nav a[aria-current]{color:var(--orange);}
.site-header .btn{margin-left:8px;}

/* ---- Mobile nav: hamburger + slide-in drawer (shown ≤980px) ---- */
.nav-toggle{
  display:none;                 /* desktop: hidden (see media query) */
  margin-left:auto;
  width:44px;height:44px;
  flex-direction:column;align-items:center;justify-content:center;gap:5px;
  background:none;border:0;padding:0;color:var(--ink);
}
.nav-toggle__bar{width:24px;height:2px;background:currentColor;border-radius:2px;}
.nav-overlay{
  position:fixed;inset:0;z-index:1000;
  background:rgba(19,19,19,.42);
  opacity:0;visibility:hidden;
  transition:opacity .25s ease,visibility .25s ease;
}
.nav-overlay.is-open{opacity:1;visibility:visible;}
.mobile-nav{
  position:fixed;top:0;right:0;bottom:0;z-index:1001;
  width:min(82vw,300px);
  display:flex;flex-direction:column;
  padding:18px 26px 32px;
  background:var(--bg);
  box-shadow:-14px 0 44px rgba(0,0,0,.14);
  transform:translateX(100%);
  transition:transform .3s cubic-bezier(.4,0,.2,1);
  overflow-y:auto;overscroll-behavior:contain;
}
.mobile-nav.is-open{transform:translateX(0);}
.mobile-nav__close{
  align-self:flex-end;width:40px;height:40px;
  display:flex;align-items:center;justify-content:center;
  background:none;border:0;color:var(--ink);
}
.mobile-nav__links{display:flex;flex-direction:column;margin-top:4px;}
.mobile-nav__links a{
  font-size:16px;font-weight:700;color:var(--ink);
  padding:15px 2px;border-bottom:1px solid var(--line);
}
.mobile-nav__links a[aria-current]{color:var(--orange);}
.mobile-nav__cta{margin-top:26px;justify-content:center;width:100%;}
body.nav-locked{overflow:hidden;}
@media (prefers-reduced-motion:reduce){
  .nav-overlay,.mobile-nav{transition:none;}
}

/* =========================================================
   Common part — Black CTA bar
   ========================================================= */
.cta-bar{background:var(--band);color:#fff;}
.cta-bar__inner{
  display:flex;align-items:center;justify-content:space-between;
  gap:24px;padding-block:8px;min-height:60px;   /* compact bar — final design height */
}
.cta-bar__text{font-size:18px;font-weight:700;letter-spacing:.02em;}

/* =========================================================
   Common part — Footer (light panel)
   ========================================================= */
.site-footer{background:var(--footer-bg);color:var(--ink);border-top:1px solid var(--line);position:relative;overflow:hidden;}
/* faint planet-scene echo behind the footer (text stays readable — content sits above) */
.footer-scene{position:absolute;left:0;right:0;bottom:0;height:300px;z-index:0;pointer-events:none;opacity:.2;}
.footer-scene__svg{width:100%;height:100%;display:block;}
.site-footer > .container{position:relative;z-index:1;}
.site-footer__top{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1fr;
  gap:40px;
  padding-block:56px;
}
.site-footer .logo__name{color:var(--ink);}
.site-footer__brand .logo{margin-bottom:20px;}
.site-footer__addr{font-size:12.5px;color:var(--gray);line-height:1.95;font-family:var(--font-jp);}
.site-footer__addr .en{font-family:var(--font-en);letter-spacing:.04em;}
.foot-col__head{
  font-family:var(--font-en);font-size:11px;font-weight:600;letter-spacing:.16em;
  text-transform:uppercase;color:var(--gray-soft);margin-bottom:18px;
}
.foot-col ul{display:flex;flex-direction:column;gap:12px;}
.foot-col a{font-size:13px;color:var(--gray);transition:color .15s ease;}
.foot-col a:hover{color:var(--orange);}
.site-footer__bottom{
  border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding-block:22px;
}
.site-footer__copy{font-family:var(--font-en);font-size:11.5px;letter-spacing:.04em;color:var(--gray-soft);}
.site-footer__legal{display:flex;gap:24px;}
.site-footer__legal a{font-size:12px;color:var(--gray);}
.site-footer__legal a:hover{color:var(--orange);}

/* =========================================================
   Responsive (graceful — primary target is desktop)
   ========================================================= */
@media (max-width:980px){
  .site-nav{display:none;}
  .site-header__cta{display:none;}     /* desktop CTA → moves into the drawer */
  .nav-toggle{display:flex;}
  .grid-4{grid-template-columns:repeat(2,1fr);}
  .grid-3{grid-template-columns:repeat(2,1fr);}
  .site-footer__top{grid-template-columns:1fr 1fr;}
  .h1{font-size:34px;}
}
@media (max-width:640px){
  .container{padding-inline:20px;}
  .grid-2,.grid-3,.grid-4{grid-template-columns:1fr;}
  .cta-bar__inner{flex-direction:column;align-items:flex-start;}
  .site-footer__top{grid-template-columns:1fr;}
  /* tighten vertical rhythm & heading scale for small screens */
  .section{padding-block:56px;}
  .section--tight{padding-block:40px;}
  .h1{font-size:30px;}
  .h2{font-size:28px;}
  .cta-bar__text{font-size:16px;}
}