/* ============================================================
   Asher Co., Ltd. — Blueprint / Instrument visual system
   Palette:  paper #EDEEF0 / ink #16181D / cobalt #1F3BE0 / signal #FF5A3C / mist #C9CDD6
   Type:     Space Grotesk + Zen Kaku Gothic New (display)
             Inter + Noto Sans JP (body) / IBM Plex Mono (data & labels)
   ============================================================ */
:root{
  --paper:#EDEEF0;
  --paper-2:#E3E5E9;
  --ink:#16181D;
  --ink-soft:#4A4E58;
  --cobalt:#1F3BE0;
  --signal:#FF5A3C;
  --mist:#C9CDD6;
  --line:#D2D5DC;
  --line-strong:#B7BBC5;
  --container:1160px;
  --disp:"Space Grotesk","Zen Kaku Gothic New",sans-serif;
  --body:"Inter","Noto Sans JP",sans-serif;
  --mono:"IBM Plex Mono",ui-monospace,monospace;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:var(--body);
  background:var(--paper);
  color:var(--ink);
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
a{color:inherit;text-decoration:none}
.container{max-width:var(--container);margin:0 auto;padding:0 32px}

/* ---- Mono utility label ---- */
.section-eyebrow,.eyebrow,.svc-meta,.flow-step,.chart-tag,.chart-metric,.nav-idx,.svc-idx,.band,.footer-bottom,.brand-en{
  font-family:var(--mono);
  letter-spacing:.14em;
  text-transform:uppercase;
}

/* ---- Buttons ---- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:.5em;
  font-family:var(--mono);font-size:13px;letter-spacing:.08em;text-transform:uppercase;
  padding:14px 24px;border:1.5px solid var(--ink);transition:.18s ease;cursor:pointer;
}
.btn-primary{background:var(--ink);color:var(--paper)}
.btn-primary:hover{background:var(--cobalt);border-color:var(--cobalt)}
.btn-line{background:transparent;color:var(--ink)}
.btn-line:hover{background:var(--ink);color:var(--paper)}
.btn-lg{padding:18px 34px;font-size:15px}

/* ---- Header ---- */
.site-header{position:sticky;top:0;z-index:50;background:rgba(237,238,240,.85);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.header-inner{display:flex;align-items:center;gap:28px;height:76px}
.brand{display:flex;align-items:center;gap:12px}
.brand-mark{color:var(--ink);display:flex}
.brand-name{display:flex;flex-direction:column;line-height:1.2}
.brand-jp{font-family:var(--disp);font-weight:700;font-size:16px;letter-spacing:.02em}
.brand-en{font-size:10px;color:var(--ink-soft);letter-spacing:.18em}
.main-nav{display:flex;gap:30px;margin-left:auto}
.main-nav a{display:flex;align-items:baseline;gap:7px;font-size:14px;font-weight:500;color:var(--ink);transition:.18s;position:relative}
.main-nav a:hover{color:var(--cobalt)}
.nav-idx{font-size:10px;color:var(--line-strong)}
.main-nav a:hover .nav-idx{color:var(--signal)}
.header-actions{display:flex;align-items:center;gap:18px;margin-left:auto}
.main-nav+.header-actions{margin-left:0}
.lang-switch{display:flex;align-items:center;gap:6px;font-family:var(--mono);font-size:12px}
.lang-btn{background:none;border:none;cursor:pointer;color:var(--ink-soft);font-family:var(--mono);letter-spacing:.1em;padding:2px 0;transition:.18s}
.lang-btn.is-active{color:var(--ink);border-bottom:2px solid var(--signal)}
.lang-btn:hover{color:var(--cobalt)}
.lang-div{color:var(--line-strong)}
.nav-toggle{display:none;flex-direction:column;gap:5px;background:none;border:none;cursor:pointer;padding:6px}
.nav-toggle span{width:24px;height:2px;background:var(--ink);transition:.2s}

/* ---- Hero ---- */
.hero{padding:88px 0 76px;position:relative;overflow:hidden}
.hero::before{content:"";position:absolute;inset:0;background-image:linear-gradient(var(--line) 1px,transparent 1px),linear-gradient(90deg,var(--line) 1px,transparent 1px);background-size:56px 56px;opacity:.5;mask-image:radial-gradient(120% 90% at 80% 0%,#000 30%,transparent 75%);pointer-events:none}
.hero-inner{position:relative;display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center}
.eyebrow{display:inline-flex;align-items:center;gap:9px;font-size:12px;color:var(--ink-soft);margin-bottom:24px}
.eyebrow-dot{width:8px;height:8px;background:var(--signal);border-radius:50%;box-shadow:0 0 0 4px rgba(255,90,60,.18)}
.hero-title{font-family:var(--disp);font-weight:700;font-size:clamp(38px,5.6vw,66px);line-height:1.08;letter-spacing:-.01em}
.hero-lead{color:var(--ink-soft);font-size:17px;max-width:34em;margin:26px 0 34px}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap}

/* ---- Signature chart ---- */
.chart{border:1.5px solid var(--ink);background:linear-gradient(180deg,#F3F4F6,#E8EAEE);padding:22px 22px 16px}
.chart-head{display:flex;justify-content:space-between;align-items:center;font-size:11px;color:var(--ink-soft);margin-bottom:14px}
.chart-metric{color:var(--ink);font-weight:600}
.chart-svg{display:block;width:100%;height:220px}
.chart .grid line{stroke:var(--line-strong);stroke-width:1;stroke-dasharray:2 5}
.chart-area{fill:rgba(31,59,224,.10)}
.chart-line{fill:none;stroke:var(--cobalt);stroke-width:3;stroke-linecap:round;stroke-dasharray:900;stroke-dashoffset:900;animation:draw 2.2s ease forwards .3s}
.chart-peak{fill:var(--signal);stroke:var(--paper);stroke-width:2;opacity:0;animation:pop .4s ease forwards 2.3s}
@keyframes draw{to{stroke-dashoffset:0}}
@keyframes pop{to{opacity:1}}
.chart-foot{display:flex;justify-content:space-between;font-family:var(--mono);font-size:10px;letter-spacing:.1em;text-transform:uppercase;color:var(--ink-soft);margin-top:10px;border-top:1px solid var(--line);padding-top:10px}

/* ---- Marquee band ---- */
.band{border-block:1.5px solid var(--ink);background:var(--ink);color:var(--paper);overflow:hidden;padding:14px 0}
.band-track{display:flex;align-items:center;gap:34px;white-space:nowrap;width:max-content;font-size:13px;letter-spacing:.16em;animation:scroll 26s linear infinite}
.band-dot{color:var(--signal)}
@keyframes scroll{to{transform:translateX(-50%)}}

/* ---- Sections ---- */
.section{padding:104px 0}
.section-head{margin-bottom:56px;border-bottom:1px solid var(--line-strong);padding-bottom:20px;display:flex;align-items:baseline;justify-content:space-between;flex-wrap:wrap;gap:12px}
.section-eyebrow{font-size:12px;color:var(--cobalt)}
.section-eyebrow::before{content:"— "}
.section-title{font-family:var(--disp);font-weight:700;font-size:clamp(28px,3.8vw,44px);line-height:1.14;letter-spacing:-.01em}

/* ---- Services (index rows) ---- */
.svc-list{border-top:1px solid var(--line)}
.svc{display:grid;grid-template-columns:70px 1fr 220px;gap:28px;align-items:start;padding:34px 0;border-bottom:1px solid var(--line);transition:.2s}
.svc:hover{background:var(--paper-2);padding-left:16px;padding-right:16px}
.svc-idx{font-size:14px;color:var(--line-strong)}
.svc:hover .svc-idx{color:var(--signal)}
.svc-body h3{font-family:var(--disp);font-size:22px;font-weight:600;margin-bottom:10px}
.svc-body p{color:var(--ink-soft);font-size:15px;max-width:42em}
.svc-meta{font-size:11px;color:var(--ink-soft);text-align:right;padding-top:6px}

/* ---- About ---- */
.about-inner{display:grid;grid-template-columns:1.4fr .6fr;gap:56px}
.about-content .section-eyebrow{display:block;margin-bottom:16px}
.about-content .section-title{margin-bottom:26px}
.about-content p{color:var(--ink-soft);margin-bottom:18px;max-width:40em}
.about-facts{display:grid;grid-template-columns:1fr 1fr;gap:1px;background:var(--line);border:1px solid var(--line);align-self:start}
.about-facts div{background:var(--paper);padding:22px}
.about-facts dt{font-family:var(--mono);font-size:11px;letter-spacing:.12em;text-transform:uppercase;color:var(--ink-soft);margin-bottom:8px}
.about-facts dd{font-family:var(--disp);font-size:30px;font-weight:700}

/* ---- Strength / flow (real sequence) ---- */
.strength{background:var(--ink);color:var(--paper)}
.strength .section-head{border-color:rgba(255,255,255,.18)}
.strength .section-title{color:var(--paper)}
.strength .section-eyebrow{color:var(--mist)}
.flow{list-style:none;display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:rgba(255,255,255,.15);border:1px solid rgba(255,255,255,.15);counter-reset:none}
.flow li{background:var(--ink);padding:34px 28px 40px;position:relative}
.flow-step{font-size:11px;color:var(--signal);letter-spacing:.14em}
.flow h3{font-family:var(--disp);font-size:21px;font-weight:600;margin:16px 0 12px}
.flow p{color:var(--mist);font-size:14px}

/* ---- Company table ---- */
.company-table{width:100%;border-collapse:collapse;border-top:1.5px solid var(--ink)}
.company-table th,.company-table td{text-align:left;padding:18px 8px;border-bottom:1px solid var(--line);font-size:15px;vertical-align:top}
.company-table th{width:260px;font-family:var(--mono);font-size:12px;letter-spacing:.08em;text-transform:uppercase;color:var(--ink-soft);font-weight:500}

/* ---- Contact ---- */
.contact{text-align:center}
.contact-inner{max-width:760px;margin:0 auto}
.contact .section-eyebrow{display:block;color:var(--cobalt);margin-bottom:22px}
.contact-title{font-family:var(--disp);font-weight:700;font-size:clamp(30px,4.6vw,54px);line-height:1.12;letter-spacing:-.01em}
.contact-sub{color:var(--ink-soft);font-size:17px;margin:22px auto 34px;max-width:38em}

/* ---- Footer ---- */
.site-footer{background:var(--paper);border-top:1.5px solid var(--ink)}
.footer-inner{display:flex;justify-content:space-between;gap:32px;flex-wrap:wrap;padding:44px 32px}
.footer-brand{display:flex;flex-direction:column;gap:6px}
.footer-brand .brand-jp{font-family:var(--disp);font-size:18px;font-weight:700}
.footer-meta{display:flex;flex-direction:column;gap:6px;text-align:right;font-size:14px;color:var(--ink-soft)}
.footer-bottom{border-top:1px solid var(--line)}
.footer-bottom .container{display:flex;justify-content:space-between;padding-block:18px;font-size:11px;color:var(--ink-soft)}

/* ---- Responsive ---- */
@media(max-width:900px){
  .main-nav{position:fixed;inset:76px 0 auto 0;flex-direction:column;gap:0;background:var(--paper);border-bottom:1px solid var(--line);display:none}
  .main-nav.open{display:flex}
  .main-nav a{padding:16px 32px;border-bottom:1px solid var(--line)}
  .nav-toggle{display:flex}
  .header-actions{margin-left:auto}
  .hero-inner,.about-inner{grid-template-columns:1fr;gap:40px}
  .flow{grid-template-columns:1fr}
  .svc{grid-template-columns:44px 1fr;gap:18px}
  .svc-meta{grid-column:2;text-align:left;padding-top:0}
}
@media(max-width:560px){
  .container{padding:0 20px}
  .section{padding:72px 0}
  .about-facts{grid-template-columns:1fr}
  .company-table th{width:130px}
  .btn{width:100%}
  .hero-actions{flex-direction:column}
  .footer-inner,.footer-meta{text-align:left}
}
@media(prefers-reduced-motion:reduce){
  .chart-line{animation:none;stroke-dashoffset:0}
  .chart-peak{animation:none;opacity:1}
  .band-track{animation:none}
}