/* ===== Lynx Co., Ltd. — corporate site ===== */
:root{
  --red:#C50029;
  --red-dark:#a3001f;
  --ink:#161616;
  --body:#333333;
  --muted:#6b6b6b;
  --line:#e8e6e2;
  --bg:#ffffff;
  --soft:#f7f5f2;
  --footer:#141414;
  --maxw:1160px;
  --pad:24px;
  --font: "Inter","Noto Sans JP","Hiragino Kaku Gothic ProN","Yu Gothic",Meiryo,sans-serif;
}

*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:var(--font);
  color:var(--body);
  background:var(--bg);
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}

.wrap{max-width:var(--maxw);margin:0 auto;padding:0 var(--pad)}

/* ---- shared type ---- */
.eyebrow{
  font-size:.75rem;font-weight:600;letter-spacing:.22em;
  color:var(--muted);margin-bottom:18px;
}
.eyebrow.red{color:var(--red)}
.section-title{
  font-size:clamp(1.6rem,3.4vw,2.35rem);
  font-weight:700;color:var(--ink);line-height:1.35;
  letter-spacing:.01em;margin-bottom:34px;
}
.lead{
  font-size:1.05rem;color:var(--body);max-width:720px;line-height:2;
}

/* ---- buttons ---- */
.btn{
  display:inline-block;padding:14px 30px;font-size:.95rem;font-weight:600;
  letter-spacing:.02em;border-radius:2px;transition:.2s ease;cursor:pointer;
  border:1.5px solid transparent;
}
.btn-primary{background:var(--red);color:#fff}
.btn-primary:hover{background:var(--red-dark)}
.btn-ghost{border-color:#d9d6d1;color:var(--ink)}
.btn-ghost:hover{border-color:var(--ink)}

/* active nav (multi-page) + company page */
.nav a.is-current{color:var(--red)}
.nav a.is-current::after{width:100%}
.page-actions{display:flex;gap:14px;flex-wrap:wrap;margin-top:44px}

/* ===== Header ===== */
.site-header{
  position:sticky;top:0;z-index:100;
  background:rgba(255,255,255,.92);
  backdrop-filter:saturate(180%) blur(8px);
  border-bottom:1px solid var(--line);
}
.header-inner{
  display:flex;align-items:center;justify-content:space-between;
  height:70px;
}
.brand{display:flex;align-items:center;gap:11px}
.brand-mark{height:30px;width:auto}
.brand-word{height:17px;width:auto}
.nav{display:flex;gap:34px}
.nav a{
  font-size:.92rem;font-weight:500;color:var(--ink);position:relative;
  padding:6px 0;
}
.nav a::after{
  content:"";position:absolute;left:0;bottom:0;width:0;height:2px;
  background:var(--red);transition:width .25s ease;
}
.nav a:hover{color:var(--red)}
.nav a:hover::after{width:100%}

.header-right{display:flex;align-items:center;gap:18px}
.lang{display:flex;align-items:center;gap:8px}
.lang-btn{
  background:none;border:none;font-family:inherit;font-size:.85rem;
  font-weight:600;color:var(--muted);cursor:pointer;letter-spacing:.03em;
  padding:2px 2px;transition:color .2s;
}
.lang-btn:hover{color:var(--ink)}
.lang-btn.is-active{color:var(--red)}
.lang-sep{color:#d0cdc8;font-size:.8rem}

.menu-toggle{
  display:none;flex-direction:column;gap:5px;background:none;border:none;
  cursor:pointer;padding:6px;
}
.menu-toggle span{width:22px;height:2px;background:var(--ink);transition:.25s}
.menu-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.menu-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.menu-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* ===== Hero ===== */
.hero{
  padding:96px 0 104px;
  background:
    radial-gradient(1200px 420px at 88% -8%, #faf1f0 0%, rgba(250,241,240,0) 62%),
    var(--bg);
  border-bottom:1px solid var(--line);
}
.hero-inner{display:grid;grid-template-columns:1.35fr .65fr;gap:40px;align-items:center}
.hero-title{
  font-size:clamp(1.9rem,4.4vw,3.15rem);
  font-weight:700;color:var(--ink);line-height:1.5;
  letter-spacing:.01em;margin:6px 0 26px;
}
.hero-sub{font-size:1.06rem;color:var(--body);max-width:620px;margin-bottom:36px;line-height:2}
.hero-cta{display:flex;gap:14px;flex-wrap:wrap}
.hero-mark{display:flex;justify-content:center;align-items:center}
.hero-mark img{width:min(230px,70%);opacity:.96}

/* ===== Sections ===== */
.section{padding:96px 0}
.section-soft{background:var(--soft);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.about-inner .lead{margin-top:2px}

/* ---- Business cards ---- */
.cards{
  display:grid;grid-template-columns:repeat(2,1fr);gap:24px;
}
.card{
  background:#fff;border:1px solid var(--line);border-radius:4px;
  padding:38px 36px 40px;position:relative;transition:.25s ease;
  overflow:hidden;
}
.card::before{
  content:"";position:absolute;left:0;top:0;height:3px;width:0;
  background:var(--red);transition:width .3s ease;
}
.card:hover{transform:translateY(-4px);box-shadow:0 18px 44px -24px rgba(20,20,20,.28);border-color:#ddd}
.card:hover::before{width:100%}
.card-no{
  font-size:.85rem;font-weight:700;letter-spacing:.15em;color:var(--red);
  display:block;margin-bottom:14px;
}
.card-title{font-size:1.28rem;font-weight:700;color:var(--ink);margin-bottom:16px;line-height:1.5}
.card-desc{font-size:.97rem;color:var(--muted);line-height:1.95}

/* ---- Company profile ---- */
.profile{
  border-top:1px solid var(--line);max-width:900px;
}
.profile-row{
  display:grid;grid-template-columns:200px 1fr;gap:24px;
  padding:22px 4px;border-bottom:1px solid var(--line);align-items:baseline;
}
.profile-row dt{font-weight:600;color:var(--ink);font-size:.98rem}
.profile-row dd{color:var(--body);font-size:1rem;line-height:1.9}
.profile-row dd a{color:var(--red);border-bottom:1px solid transparent}
.profile-row dd a:hover{border-color:var(--red)}

/* ---- Contact ---- */
.contact-inner{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center}
.contact-list{list-style:none;margin:28px 0 34px}
.contact-list li{
  display:grid;grid-template-columns:96px 1fr;gap:18px;
  padding:16px 0;border-bottom:1px solid var(--line);
}
.contact-list .c-label{font-weight:600;color:var(--ink);font-size:.92rem}
.contact-list .c-value{color:var(--body);font-size:.98rem;line-height:1.8}
.contact-list .c-value a{color:var(--red)}
.contact-map{
  display:flex;flex-direction:column;align-items:center;justify-content:center;
  text-align:center;gap:14px;min-height:330px;padding:44px 34px;
  border:1px solid var(--line);border-radius:6px;color:var(--ink);transition:.25s ease;
  background:
    linear-gradient(rgba(255,255,255,.55),rgba(255,255,255,.55)),
    repeating-linear-gradient(0deg,#e4e2de 0 1px,transparent 1px 27px),
    repeating-linear-gradient(90deg,#e4e2de 0 1px,transparent 1px 27px),
    var(--soft);
}
.contact-map:hover{border-color:var(--red);transform:translateY(-3px);box-shadow:0 18px 44px -30px rgba(20,20,20,.4)}
.contact-map .map-pin{color:var(--red)}
.contact-map .map-addr{font-size:.98rem;color:var(--body);max-width:320px;line-height:1.85}
.contact-map .map-cta{font-size:.9rem;font-weight:600;color:var(--red);letter-spacing:.02em}

/* ===== Footer ===== */
.site-footer{background:var(--footer);color:#cfcccc;padding:56px 0}
.footer-inner{display:flex;flex-direction:column;align-items:center;text-align:center;gap:12px}
.footer-brand{display:flex;align-items:center;gap:12px}
.footer-mark{height:30px;width:auto}
.footer-word{font-size:1.35rem;font-weight:700;letter-spacing:.2em;color:#fff}
.footer-tag{font-size:.95rem;color:#b7b4b4}
.footer-copy{font-size:.8rem;color:#8a8787;letter-spacing:.03em;margin-top:4px}

/* ===== Responsive ===== */
@media (max-width:900px){
  .hero-inner{grid-template-columns:1fr}
  .hero-mark{display:none}
  .contact-inner{grid-template-columns:1fr;gap:34px}
}
@media (max-width:820px){
  .nav{
    position:absolute;top:70px;left:0;right:0;
    flex-direction:column;gap:0;background:#fff;
    border-bottom:1px solid var(--line);
    max-height:0;overflow:hidden;transition:max-height .3s ease;
  }
  .nav.open{max-height:320px}
  .nav a{padding:16px var(--pad);border-top:1px solid var(--line)}
  .nav a::after{display:none}
  .menu-toggle{display:flex}
  .cards{grid-template-columns:1fr}
  .section{padding:70px 0}
  .hero{padding:64px 0 72px}
}
@media (max-width:560px){
  :root{--pad:18px}
  .profile-row{grid-template-columns:1fr;gap:6px;padding:18px 2px}
  .profile-row dt{color:var(--muted);font-size:.85rem}
  .btn{padding:13px 24px}
  .brand-word{height:15px}
}