/* ---------- CSS Reset (minimal) ---------- */
*,*::before,*::after{box-sizing:border-box}
html,body{margin:0;padding:0}
img{max-width:100%;height:auto;display:block}
:root{
  --brown:#5B3A2E;
  --sand:#F7EFE6;
  --sand-2:#EDE3D5;
  --gold:#C3B37B;
  --green:#8FA27B;
  --ink:#1b1b1b;
  --muted:#6b6b6b;
  --bg:#FFFFFF;
  --radius:12px;
  --shadow:0 1px 2px rgba(0,0,0,.06),0 6px 24px rgba(0,0,0,.08);
  --container:1200px;
  --header-h:64px;
}
@media (prefers-color-scheme: dark){
  :root{--bg:#0f0f0f;--ink:#f0f0f0;--sand:#2a241f;--sand-2:#221c17}
}
html{font-family:system-ui,-apple-system,Segoe UI,Roboto,Helvetica,Arial,'Noto Sans JP','Hiragino Kaku Gothic ProN','Meiryo',sans-serif; color:var(--ink); background:var(--bg); line-height:1.5; -webkit-text-size-adjust:100%}
a{color:var(--brown);text-decoration-thickness:1px;text-underline-offset:2px}
a.cta{display:inline-block;background:var(--brown);color:#fff;text-decoration:none;padding:.8rem 1.1rem;border-radius:10px;font-weight:700;box-shadow:var(--shadow)}
a.cta--ghost{background:transparent;color:var(--brown);outline:2px solid var(--brown)}
a.cta--small{padding:.4rem .7rem}

.container{max-width:var(--container);margin-inline:auto;padding:0 20px}
.section{padding:64px 0}
.section.alt{background:var(--sand)}
.section-hd{display:flex;flex-direction:column;gap:.4rem;margin-bottom:1.25rem}
.section-hd h2{font-size:1.6rem;margin:0}
.section-sub{color:var(--muted);margin:0}
.lead{font-size:1.15rem;color:var(--ink)}
.micro{font-size:.85rem;color:var(--muted)}

/* Header */
.site-header{position:sticky;top:0;backdrop-filter:saturate(120%) blur(8px);background:color-mix(in srgb, var(--sand) 75%, transparent); border-bottom:1px solid rgba(0,0,0,.06); z-index:10}
.header-inner{height:var(--header-h);display:flex;align-items:center;justify-content:space-between;gap:16px}
.site-nav ul{display:flex;gap:16px;list-style:none;margin:0;padding:0;align-items:center}
.site-nav a{display:inline-block;padding:.4rem .3rem}
.brand{display:flex;align-items:center;gap:8px}
.lang-switch{display:flex;gap:6px}
.lang{border:1px solid rgba(0,0,0,.1);background:transparent;color:var(--ink);padding:.35rem .55rem;border-radius:8px;cursor:pointer}
.lang.is-active{background:var(--brown);color:#fff;border-color:var(--brown)}

/* Skip link */
.skip-link{position:absolute;left:-9999px;top:auto;width:1px;height:1px;overflow:hidden}
.skip-link:focus{position:fixed;left:16px;top:12px;width:auto;height:auto;padding:.6rem .8rem;background:var(--brown);color:#fff;border-radius:8px;z-index:999}

/* Hero */
.hero{padding:56px 0;background:linear-gradient(180deg,var(--sand),transparent)}
.hero-inner{display:grid;grid-template-columns:1.2fr 1fr;gap:24px;align-items:center}
.hero-copy h1{font-size:clamp(1.8rem,1.5rem + 1.5vw,2.4rem);line-height:1.25;margin:.2rem 0 .6rem}
.hero-ctas{display:flex;gap:10px;margin:12px 0 6px}
.trust-metrics{display:flex;gap:8px;align-items:center;list-style:none;margin:.6rem 0 0;padding:0}

/* Cards */
.card-grid{display:grid;grid-template-columns:repeat(12,1fr);gap:16px}
.card{grid-column:span 12;background:#fff;border:1px solid rgba(0,0,0,.06);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);background:var(--bg)}
.card.plain{padding:20px}
.card img{aspect-ratio:4/3;object-fit:cover}
.card-body{padding:14px 14px 18px}
.card h3{margin:.2rem 0 .6rem}
.spec{list-style:none;margin:0;padding:0;display:grid;gap:6px}
.card-cta{display:flex;gap:10px;margin-top:8px}
.card-cta .link{font-weight:600}
@media (min-width:720px){
  .card{grid-column:span 6}
}
@media (min-width:1100px){
  .card{grid-column:span 4}
}

/* Features & Stats */
.feature-grid{display:grid;grid-template-columns:repeat(12,1fr);gap:16px}
.feature{grid-column:span 12;border:1px solid rgba(0,0,0,.06);border-radius:var(--radius);padding:16px;background:var(--bg);box-shadow:var(--shadow)}
.feature h3{margin-top:0}
@media (min-width:900px){.feature{grid-column:span 4}}
.stats{display:flex;gap:16px;margin:12px 0 18px}
.stat{flex:1;min-width:120px;border:1px solid rgba(0,0,0,.06);border-radius:12px;padding:10px;background:var(--bg);text-align:center;box-shadow:var(--shadow)}
.stat-k{font-size:1.6rem;font-weight:800;color:var(--brown)}
.stat-l{color:var(--muted)}

/* Company */
.company-grid{display:grid;grid-template-columns:repeat(12,1fr);gap:16px}
.company-card{grid-column:span 12;border:1px solid rgba(0,0,0,.06);border-radius:var(--radius);padding:16px;background:var(--bg);box-shadow:var(--shadow)}
@media (min-width:900px){.company-card{grid-column:span 4}}

/* Contact form */
.form-grid{display:grid;grid-template-columns:repeat(12,1fr);gap:12px}
.form-row{grid-column:span 12;display:flex;flex-direction:column;gap:6px}
.form-row input,.form-row select,.form-row textarea{appearance:none;border:1px solid rgba(0,0,0,.2);border-radius:10px;padding:.7rem .8rem;background:var(--bg);color:var(--ink)}
.form-row input:focus,.form-row select:focus,.form-row textarea:focus{outline:3px solid color-mix(in srgb, var(--brown) 35%, transparent)}
@media (min-width:900px){
  .form-grid .form-row{grid-column:span 6}
}
.form-actions{display:flex;align-items:center;gap:12px;margin-top:.3rem}
.hp{display:none}

/* Footer */
.site-footer{padding:24px 0;border-top:1px solid rgba(0,0,0,.06);margin-top:24px;background:var(--sand-2)}
.footer-inner{display:flex;align-items:center;justify-content:space-between;gap:12px}
.footer-inner nav{display:flex;gap:12px}

/* Reveal on scroll */
[data-reveal]{opacity:0;transform:translateY(12px);transition:opacity .6s ease, transform .6s ease}
[data-reveal].is-visible{opacity:1;transform:none}
@media (prefers-reduced-motion: reduce){
  [data-reveal]{opacity:1 !important;transform:none !important;transition:none !important}
  html{scroll-behavior:auto}
}

/* Scroll margins so anchor links don't hide behind the header */
section{scroll-margin-top:calc(var(--header-h) + 12px)}

/* Focus styles */
:focus-visible{outline:3px solid color-mix(in srgb, var(--gold) 60%, transparent);outline-offset:2px}