/* === 株式会社祖川 — 共通ブランドトークン === */
@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+JP:wght@400;500;700;900&family=Noto+Serif+JP:wght@500;600;700;900&family=Shippori+Mincho:wght@500;600;700;800&family=Zen+Kaku+Gothic+New:wght@400;500;700;900&display=swap');

:root{
  /* Brand */
  --navy:#15264b;       /* ロゴ・ベースのネイビー */
  --navy-deep:#0e1b38;
  --navy-soft:#27406f;
  --gold:#c79a3b;       /* ロゴのゴールド */
  --gold-bright:#e0bd63;
  --gold-deep:#a87d28;
  --ink:#1c2333;
  --muted:#5d6678;
  --line:#e4e7ee;
  --ivory:#f8f6f0;
  --paper:#ffffff;
  --cream:#f4efe4;

  /* Gold strength (tweakable) */
  --accent:var(--gold);

  /* Type */
  --serif:"Shippori Mincho","Noto Serif JP",serif;
  --gothic:"Zen Kaku Gothic New","Noto Sans JP",sans-serif;
  --sans:"Noto Sans JP",sans-serif;

  --maxw:1180px;
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--sans);
  color:var(--ink);
  background:var(--paper);
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
h1,h2,h3,h4{margin:0;line-height:1.4;font-weight:700}
p{margin:0}

.container{max-width:var(--maxw);margin:0 auto;padding:0 28px}

/* Gold thin rule */
.goldrule{width:54px;height:2px;background:var(--accent);border:0}

/* Buttons */
.btn{
  display:inline-flex;align-items:center;gap:.6em;
  font-family:var(--gothic);font-weight:700;font-size:16px;letter-spacing:.04em;
  padding:16px 30px;border-radius:2px;cursor:pointer;border:1.5px solid transparent;white-space:nowrap;
  transition:transform .25s ease, box-shadow .25s ease, background .25s, color .25s;
}
.btn:hover{transform:translateY(-2px)}
.btn-gold{background:linear-gradient(135deg,var(--gold-bright),var(--gold-deep));color:#1a1408;box-shadow:0 10px 26px -10px rgba(167,125,40,.7)}
.btn-navy{background:var(--navy);color:#fff}
.btn-navy:hover{box-shadow:0 12px 28px -12px rgba(21,38,75,.7)}
.btn-ghost{border-color:var(--navy);color:var(--navy);background:transparent}
.btn-ghost:hover{background:var(--navy);color:#fff}
.btn-line{background:#06C755;color:#fff}

/* Section label */
.eyebrow{
  font-family:var(--gothic);font-weight:700;letter-spacing:.22em;
  font-size:12.5px;color:var(--accent);text-transform:uppercase;
  display:inline-flex;align-items:center;gap:10px;
}
.eyebrow::before{content:"";width:26px;height:1.5px;background:var(--accent)}

/* Reveal on scroll */
.reveal{opacity:0;transform:translateY(26px);transition:opacity .8s cubic-bezier(.2,.7,.2,1),transform .8s cubic-bezier(.2,.7,.2,1)}
.reveal.in{opacity:1;transform:none}

/* SNS row */
.sns{display:flex;gap:12px;align-items:center}
.sns a{width:42px;height:42px;border-radius:50%;display:grid;place-items:center;border:1.5px solid rgba(255,255,255,.35);transition:.25s}
.sns svg{width:19px;height:19px}

/* === Tweaks panel === */
#tw-fab{position:fixed;right:20px;bottom:20px;z-index:9999;width:50px;height:50px;border-radius:50%;
  border:0;cursor:pointer;background:var(--navy);color:var(--gold-bright);font-size:22px;line-height:1;
  box-shadow:0 10px 26px -8px rgba(0,0,0,.5);transition:transform .3s}
#tw-fab:hover{transform:rotate(40deg)}
#tw-panel{position:fixed;right:20px;bottom:82px;z-index:9999;width:288px;background:#fff;color:var(--ink);
  border-radius:12px;box-shadow:0 24px 60px -18px rgba(13,27,56,.45);border:1px solid var(--line);
  padding:18px;opacity:0;pointer-events:none;transform:translateY(12px) scale(.97);transition:.28s cubic-bezier(.2,.7,.2,1);
  font-family:var(--gothic)}
#tw-panel.open{opacity:1;pointer-events:auto;transform:none}
.tw-h{display:flex;justify-content:space-between;align-items:center;font-weight:700;font-size:15px;
  padding-bottom:12px;margin-bottom:6px;border-bottom:1px solid var(--line)}
.tw-h #tw-x{border:0;background:none;font-size:20px;cursor:pointer;color:var(--muted);line-height:1}
.tw-g{margin-top:14px}
.tw-g>label{display:block;font-size:11.5px;font-weight:700;letter-spacing:.04em;color:var(--muted);margin-bottom:7px}
.tw-seg{display:flex;gap:6px;flex-wrap:wrap}
.tw-seg button{flex:1;min-width:fit-content;border:1px solid var(--line);background:#fff;color:var(--muted);
  font-size:12px;font-weight:700;font-family:var(--gothic);padding:8px 6px;border-radius:7px;cursor:pointer;transition:.18s;white-space:nowrap}
.tw-seg button:hover{border-color:var(--gold)}
.tw-seg button.on{background:var(--navy);color:#fff;border-color:var(--navy)}

/* Character amount hooks */
body[data-chara="min"] .owl-accent{display:none!important}
body[data-chara="full"] .owl-extra{display:block!important}

/* Density hooks */
body[data-density="cozy"]{--secpad:64px}
body[data-density="normal"]{--secpad:104px}
body[data-density="airy"]{--secpad:150px}

@media(max-width:760px){
  .container{padding:0 20px}
  #tw-panel{width:calc(100vw - 40px);right:20px}
}