/* ===== 廣田工業 LP / white × gold ===== */
:root{
  --bg:#ffffff;
  --bg-2:#faf7f0;      /* ivory alt */
  --panel:#ffffff;
  --line:#e9e2d4;      /* warm light border */
  --text:#23272c;
  --muted:#6c7178;
  --gold:#b08827;      /* deep gold for text on white */
  --gold-2:#d8b85f;    /* light gold for highlights */
  --gold-grad-a:#c79a32;
  --gold-grad-b:#e7cd7e;
  --shadow:0 18px 40px rgba(40,33,12,.08);
  --maxw:1120px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:"Noto Sans JP",system-ui,-apple-system,sans-serif;
  background:var(--bg);color:var(--text);
  line-height:1.85;font-size:16px;-webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 24px}
.serif{font-family:"Noto Serif JP",serif}

/* ---- section heading ---- */
.sec{padding:100px 0}
.sec--alt{background:var(--bg-2)}
.sec-head{text-align:center;margin-bottom:58px}
.sec-head .en{
  display:block;letter-spacing:.34em;font-size:12px;font-weight:700;
  color:var(--gold);margin-bottom:14px;text-transform:uppercase;
}
.sec-head h2{font-size:31px;font-weight:700;letter-spacing:.04em;color:var(--text)}
.sec-head .line{width:46px;height:2px;background:linear-gradient(90deg,var(--gold-grad-a),var(--gold-grad-b));margin:20px auto 0}
@media(max-width:480px){.sec-head h2{font-size:24px;letter-spacing:.02em}}

/* ---- header ---- */
.site-head{
  position:fixed;top:0;left:0;right:0;z-index:50;
  display:flex;align-items:center;justify-content:space-between;
  padding:16px 28px;background:transparent;transition:.3s;
}
.site-head.scrolled{background:rgba(255,255,255,.94);border-bottom:1px solid var(--line);
  box-shadow:0 6px 20px rgba(40,33,12,.05);backdrop-filter:saturate(1.1) blur(6px)}
.brand{display:flex;align-items:center;gap:12px;font-weight:700;letter-spacing:.08em;color:var(--text)}
.brand .mark{width:42px;height:42px;border-radius:50%;object-fit:contain;display:block;flex:0 0 auto}
.brand small{display:block;font-size:10px;color:var(--muted);letter-spacing:.18em;font-weight:400}
.nav{display:flex;gap:28px;font-size:13px;letter-spacing:.06em;color:var(--text)}
.nav a:hover{color:var(--gold)}
.head-cta{padding:9px 18px;border:1px solid var(--gold);color:var(--gold);border-radius:2px;font-size:12px;letter-spacing:.08em;background:rgba(255,255,255,.6)}
.head-cta:hover{background:var(--gold);color:#fff}
@media(max-width:760px){.nav{display:none}}

/* ---- hero (light wash over video) ---- */
.hero{position:relative;height:100svh;min-height:600px;overflow:hidden;display:flex;align-items:center;background:var(--bg-2)}
.hero__video{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;
  transform:scale(1.06);filter:saturate(1.22) contrast(1.1) brightness(1.03)}
.hero__scrim{position:absolute;inset:0;
  background:
    linear-gradient(100deg,rgba(255,255,255,.97) 0%,rgba(255,255,255,.9) 34%,rgba(255,255,255,.66) 50%,rgba(255,255,255,.2) 70%,rgba(255,255,255,0) 86%),
    linear-gradient(180deg,rgba(255,255,255,.3) 0%,rgba(255,255,255,0) 30%,rgba(255,255,255,0) 70%,rgba(255,255,255,.45) 100%);
}
.hero__inner{position:relative;z-index:2;width:100%;max-width:var(--maxw);margin:0 auto;padding:0 28px}
.hero .kicker{display:flex;align-items:center;gap:14px;color:var(--gold);letter-spacing:.22em;font-size:13px;font-weight:700;margin-bottom:26px}
.hero .kicker::before{content:"";width:40px;height:1px;background:var(--gold)}
.hero h1{font-size:clamp(40px,8vw,86px);font-weight:700;line-height:1.14;letter-spacing:.02em;color:var(--text);text-shadow:0 1px 16px rgba(255,255,255,.6)}
.hero h1 b{color:var(--gold);font-weight:700}
.hero .lead{margin-top:28px;font-size:clamp(15px,2vw,18px);max-width:30em;color:#23272c;font-weight:500;text-shadow:0 1px 2px rgba(255,255,255,.9),0 0 14px rgba(255,255,255,.85)}
.hero .actions{margin-top:40px;display:flex;gap:16px;flex-wrap:wrap}
.btn{display:inline-flex;align-items:center;gap:10px;padding:15px 30px;border-radius:2px;font-weight:700;letter-spacing:.06em;font-size:15px;transition:.25s}
.btn--gold{background:linear-gradient(135deg,var(--gold-grad-a),var(--gold-grad-b));color:#3a2c05;box-shadow:0 12px 30px rgba(176,136,39,.32)}
.btn--gold:hover{transform:translateY(-2px);box-shadow:0 16px 34px rgba(176,136,39,.4)}
.btn--ghost{border:1px solid var(--gold);color:var(--gold);background:rgba(255,255,255,.5)}
.btn--ghost:hover{background:var(--gold);color:#fff}
.hero .scrolldown{position:absolute;bottom:26px;left:50%;transform:translateX(-50%);z-index:2;color:var(--muted);font-size:11px;letter-spacing:.3em;writing-mode:vertical-rl}

/* ---- strengths ---- */
.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.card{background:var(--panel);border:1px solid var(--line);border-radius:6px;padding:40px 30px;position:relative;overflow:hidden;box-shadow:var(--shadow)}
.card::before{content:"";position:absolute;top:0;left:0;width:100%;height:3px;background:linear-gradient(90deg,var(--gold-grad-a),var(--gold-grad-b),transparent)}
.card .no{font-family:"Noto Serif JP",serif;color:var(--gold);font-size:13px;letter-spacing:.2em;margin-bottom:16px}
.card h3{font-size:20px;margin-bottom:14px;letter-spacing:.03em;color:var(--text)}
.card p{font-size:14.5px;color:var(--muted)}
@media(max-width:760px){.cards{grid-template-columns:1fr}}

/* ---- services ---- */
.svc{display:grid;grid-template-columns:repeat(2,1fr);gap:18px;max-width:880px;margin:0 auto}
.svc-item{display:flex;gap:18px;padding:28px;background:var(--bg);border:1px solid var(--line);border-radius:6px;box-shadow:var(--shadow)}
.svc-item .ic{flex:0 0 46px;height:46px;border-radius:50%;border:1px solid var(--gold);color:var(--gold);display:grid;place-items:center;font-size:18px;font-family:"Noto Serif JP",serif;background:#fffdf7}
.svc-item h4{font-size:17px;margin-bottom:6px;color:var(--text)}
.svc-item p{font-size:13.5px;color:var(--muted)}
@media(max-width:680px){.svc{grid-template-columns:1fr}}

/* ---- works ---- */
.gallery{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.gallery figure{position:relative;border-radius:6px;overflow:hidden;aspect-ratio:4/3;box-shadow:var(--shadow)}
.gallery img{width:100%;height:100%;object-fit:cover;transition:.5s}
.gallery figure:hover img{transform:scale(1.06)}
.gallery figcaption{position:absolute;left:0;bottom:0;width:100%;padding:20px 14px 12px;color:#fff;
  font-size:12px;letter-spacing:.06em;background:linear-gradient(transparent,rgba(20,16,6,.78))}
@media(max-width:860px){.gallery{grid-template-columns:repeat(2,1fr)}}

/* ---- company ---- */
.company{max-width:780px;margin:0 auto}
.company table{width:100%;border-collapse:collapse}
.company th,.company td{text-align:left;padding:18px 8px;border-bottom:1px solid var(--line);font-size:14.5px;vertical-align:top}
.company th{width:34%;color:var(--gold);font-weight:700;letter-spacing:.05em}
.company td{color:#3c4148}

/* ---- CTA band ---- */
.cta{position:relative;text-align:center;padding:96px 24px;background:var(--bg-2);overflow:hidden}
.cta::after{content:"";position:absolute;inset:0;background:radial-gradient(60% 100% at 50% 0,rgba(176,136,39,.12),transparent)}
.cta .inner{position:relative;z-index:2;max-width:640px;margin:0 auto}
.cta .en{color:var(--gold)}
.cta h2{font-size:29px;margin:14px 0 16px;letter-spacing:.03em;color:var(--text)}
.cta p{color:var(--muted);margin-bottom:32px}
.cta .actions{display:flex;gap:16px;justify-content:center;flex-wrap:wrap}

/* ---- footer ---- */
.foot{background:var(--bg);border-top:1px solid var(--line);padding:46px 24px;text-align:center}
.foot .brand{justify-content:center;margin-bottom:14px}
.foot small{color:var(--muted);font-size:12px;letter-spacing:.05em}

/* keep a number+counter (e.g. 一層) from splitting where auto-phrase mis-segments */
.nb{white-space:nowrap}
/* ---- Japanese line-break: break at natural phrase boundaries (no kanji-word splits, no 。/、/・ orphans) ---- */
.hero h1,.hero .lead,.hero .kicker,.sec-head h2,.card h3,.card p,.svc-item h4,.svc-item p,.cta h2,.cta p,.company td,.gallery figcaption{
  word-break:auto-phrase;line-break:strict;
}

.reveal{opacity:0;transform:translateY(26px);transition:.7s cubic-bezier(.2,.7,.2,1)}
.reveal.in{opacity:1;transform:none}

/* ---- portfolio / sample banner ---- */
.foot-demo{display:block;margin-top:8px;color:var(--gold);font-size:11px;letter-spacing:.06em}
.sample-banner{
  position:fixed;left:50%;bottom:20px;transform:translateX(-50%);
  z-index:60;display:inline-flex;align-items:center;gap:10px;
  background:rgba(22,19,12,.9);backdrop-filter:blur(10px);
  border:1px solid rgba(216,184,95,.55);color:#f3e8cc;
  padding:9px 16px 9px 14px;border-radius:999px;
  font-size:13px;font-weight:500;letter-spacing:.03em;white-space:nowrap;
  max-width:min(620px,calc(100vw - 24px));
  box-shadow:0 14px 34px rgba(40,33,12,.32);cursor:pointer;
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
  animation:sb-in .5s ease both;
}
.sample-banner:hover{
  transform:translateX(-50%) translateY(-3px);
  border-color:rgba(216,184,95,.95);
  box-shadow:0 18px 42px rgba(40,33,12,.4),0 0 0 1px rgba(216,184,95,.25);
}
.sample-banner:hover .sb-arrow{transform:translate(2px,-2px)}
@keyframes sb-in{from{opacity:0}to{opacity:1}}
.sb-arrow{color:var(--gold-2);opacity:.85;transition:transform .22s ease}
.sb-dot{width:8px;height:8px;border-radius:50%;background:var(--gold-2);
  box-shadow:0 0 0 4px rgba(216,184,95,.18);animation:sb-pulse 2s ease-in-out infinite}
@keyframes sb-pulse{0%,100%{box-shadow:0 0 0 3px rgba(216,184,95,.24)}50%{box-shadow:0 0 0 6px rgba(216,184,95,.06)}}
.sb-tag{font-weight:700;font-size:10.5px;letter-spacing:.18em;
  color:#1a1205;background:linear-gradient(135deg,var(--gold-grad-a),var(--gold-grad-b));padding:2px 8px;border-radius:5px}
.sb-text{color:#f3e8cc}
.sb-by{color:#b9ad93;font-size:11.5px}
.sb-by b{color:var(--gold-2);font-weight:700}
@media(max-width:560px){
  .sample-banner{font-size:11px;padding:9px 16px;gap:8px;bottom:12px;white-space:normal;text-align:center;
    line-height:1.45;border-radius:16px;width:min(94vw,360px);justify-content:center;flex-wrap:wrap}
  .sample-banner .sb-text{font-size:11px}
  .sb-by{display:none}
  .sb-dot{display:none}
}