/* ============================================================
   株式会社yoake コーポレートサイト 共通スタイル
   信用提示向け・堅実かつ上品なデザイン（紺×ゴールドアクセント）
   ビルド不要・自作CSSのみ（バリュードメイン共有サーバーへFTP設置）
   ============================================================ */

:root {
  --navy: #0e2a47;
  --navy-deep: #081d33;
  --navy-light: #1d4068;
  --gold: #b8965a;
  --gold-light: #cdae78;
  --ink: #1c2733;
  --muted: #5b6b7b;
  --line: #e3e8ee;
  --bg: #ffffff;
  --bg-soft: #f5f7fa;
  --max: 1120px;
  --radius: 10px;
  --shadow: 0 6px 24px rgba(14, 42, 71, 0.08);
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  font-family: "Noto Sans JP", "Hiragino Kaku Gothic ProN", "Yu Gothic Medium",
    Meiryo, sans-serif;
  color: var(--ink);
  background: var(--bg);
  line-height: 1.85;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

a { color: var(--navy-light); text-decoration: none; transition: color .2s; }
a:hover { color: var(--gold); }

img { max-width: 100%; display: block; }

.container { width: 100%; max-width: var(--max); margin: 0 auto; padding: 0 24px; }

/* ---------- ヘッダー ---------- */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(255, 255, 255, 0.96);
  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: baseline; gap: 10px; }
.brand .logo {
  font-size: 1.35rem; font-weight: 700; letter-spacing: .06em;
  color: var(--navy);
}
.brand .logo .accent { color: var(--gold); }
.brand .tagline-mini { font-size: .72rem; color: var(--muted); letter-spacing: .08em; }

.nav { display: flex; align-items: center; gap: 28px; }
.nav a { color: var(--ink); font-size: .92rem; font-weight: 500; letter-spacing: .03em; }
.nav a.cta {
  background: var(--navy); color: #fff; padding: 9px 18px; border-radius: 6px;
  font-weight: 600;
}
.nav a.cta:hover { background: var(--gold); color: #fff; }

/* モバイル：CSSのみハンバーガー */
.nav-toggle, .nav-toggle-label { display: none; }

@media (max-width: 820px) {
  .nav-toggle-label {
    display: block; cursor: pointer; width: 28px; height: 22px; position: relative;
  }
  .nav-toggle-label span,
  .nav-toggle-label span::before,
  .nav-toggle-label span::after {
    content: ""; position: absolute; left: 0; width: 28px; height: 2px;
    background: var(--navy); transition: .3s;
  }
  .nav-toggle-label span { top: 10px; }
  .nav-toggle-label span::before { top: -8px; }
  .nav-toggle-label span::after { top: 8px; }
  .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 a { width: 100%; text-align: center; padding: 16px; border-top: 1px solid var(--line); }
  .nav a.cta { border-radius: 0; }
  .nav-toggle:checked ~ .nav { max-height: 400px; }
}

/* ---------- ヒーロー ---------- */
.hero {
  background: linear-gradient(135deg, var(--navy-deep) 0%, var(--navy) 55%, var(--navy-light) 100%);
  color: #fff; position: relative; overflow: hidden;
}
.hero::after {
  content: ""; position: absolute; right: -120px; top: -120px;
  width: 420px; height: 420px; border-radius: 50%;
  background: radial-gradient(circle, rgba(184,150,90,.22), transparent 70%);
}
.hero-inner { padding: 96px 24px 104px; position: relative; z-index: 1; }
.hero .eyebrow {
  color: var(--gold-light); letter-spacing: .28em; font-size: .8rem;
  font-weight: 600; margin-bottom: 22px;
}
.hero h1 {
  font-size: clamp(1.9rem, 4.5vw, 3rem); font-weight: 700; line-height: 1.45;
  letter-spacing: .02em; margin-bottom: 24px;
}
.hero p { font-size: 1.05rem; color: #d6e0ec; max-width: 640px; }
.hero-actions { margin-top: 40px; display: flex; gap: 16px; flex-wrap: wrap; }

.btn {
  display: inline-block; padding: 13px 30px; border-radius: 6px; font-weight: 600;
  letter-spacing: .04em; transition: .25s; font-size: .95rem;
}
.btn-primary { background: var(--gold); color: #fff; }
.btn-primary:hover { background: var(--gold-light); color: #fff; }
.btn-outline { border: 1px solid rgba(255,255,255,.5); color: #fff; }
.btn-outline:hover { background: rgba(255,255,255,.12); color: #fff; }

/* ---------- セクション共通 ---------- */
section { padding: 84px 0; }
.section-soft { background: var(--bg-soft); }
.section-head { text-align: center; margin-bottom: 56px; }
.section-head .en {
  color: var(--gold); letter-spacing: .26em; font-size: .78rem; font-weight: 600;
  display: block; margin-bottom: 12px;
}
.section-head h2 {
  font-size: clamp(1.5rem, 3vw, 2rem); color: var(--navy); font-weight: 700;
  letter-spacing: .04em;
}
.section-head .lead { color: var(--muted); margin-top: 16px; }

/* ---------- 事業カード ---------- */
.cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.card {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 32px 28px; transition: .25s;
}
.card:hover { box-shadow: var(--shadow); transform: translateY(-3px); }
.card .num { color: var(--gold); font-weight: 700; font-size: .85rem; letter-spacing: .1em; }
.card h3 { font-size: 1.12rem; color: var(--navy); margin: 10px 0 12px; }
.card p { color: var(--muted); font-size: .92rem; }
@media (max-width: 820px) { .cards { grid-template-columns: 1fr; } }

/* ---------- 会社概要テーブル ---------- */
.info-table { width: 100%; border-collapse: collapse; background: #fff; }
.info-table th, .info-table td {
  text-align: left; padding: 20px 24px; border-bottom: 1px solid var(--line);
  vertical-align: top; font-size: .95rem;
}
.info-table th {
  width: 230px; color: var(--navy); font-weight: 600; background: var(--bg-soft);
  white-space: nowrap;
}
@media (max-width: 640px) {
  .info-table, .info-table tbody, .info-table tr, .info-table th, .info-table td { display: block; width: 100%; }
  .info-table th { border-bottom: none; padding-bottom: 6px; }
  .info-table td { padding-top: 6px; }
}

/* ---------- 事業内容リスト ---------- */
.biz-group { margin-bottom: 48px; }
.biz-group h3 {
  color: var(--navy); font-size: 1.2rem; border-left: 4px solid var(--gold);
  padding-left: 14px; margin-bottom: 20px;
}
.biz-list { list-style: none; display: grid; grid-template-columns: 1fr 1fr; gap: 12px 32px; }
.biz-list li {
  position: relative; padding-left: 26px; color: var(--ink); font-size: .96rem;
}
.biz-list li::before {
  content: "▪"; color: var(--gold); position: absolute; left: 4px; top: 0;
}
@media (max-width: 720px) { .biz-list { grid-template-columns: 1fr; } }

/* ---------- ページヘッダー（下層） ---------- */
.page-hero {
  background: linear-gradient(135deg, var(--navy-deep), var(--navy));
  color: #fff; padding: 70px 24px 64px; text-align: center;
}
.page-hero .en { color: var(--gold-light); letter-spacing: .26em; font-size: .76rem; font-weight: 600; }
.page-hero h1 { font-size: clamp(1.6rem, 3.5vw, 2.3rem); margin-top: 12px; letter-spacing: .04em; }
.breadcrumb { background: var(--bg-soft); border-bottom: 1px solid var(--line); }
.breadcrumb ol {
  list-style: none; display: flex; gap: 8px; padding: 14px 0; font-size: .82rem; color: var(--muted);
}
.breadcrumb li::after { content: "／"; margin-left: 8px; color: var(--line); }
.breadcrumb li:last-child::after { content: ""; }

/* ---------- CTA帯 ---------- */
.cta-band {
  background: linear-gradient(135deg, var(--navy), var(--navy-light));
  color: #fff; text-align: center;
}
.cta-band h2 { font-size: 1.6rem; margin-bottom: 14px; letter-spacing: .04em; }
.cta-band p { color: #cdd9e6; margin-bottom: 32px; }

/* ---------- お問い合わせ ---------- */
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; align-items: start; }
.contact-card {
  border: 1px solid var(--line); border-radius: var(--radius); padding: 34px;
  background: #fff;
}
.contact-card h3 { color: var(--navy); margin-bottom: 16px; font-size: 1.1rem; }
.contact-card .big-mail {
  font-size: 1.1rem; font-weight: 600; color: var(--navy-light); word-break: break-all;
}
@media (max-width: 720px) { .contact-grid { grid-template-columns: 1fr; } }

/* ---------- フッター ---------- */
.site-footer { background: var(--navy-deep); color: #b9c6d6; padding: 56px 0 28px; font-size: .88rem; }
.footer-top { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 32px; margin-bottom: 36px; }
.footer-brand .logo { color: #fff; font-size: 1.25rem; font-weight: 700; letter-spacing: .06em; }
.footer-brand .logo .accent { color: var(--gold); }
.footer-brand p { margin-top: 10px; color: #8da3ba; }
.footer-nav { display: flex; gap: 40px; flex-wrap: wrap; }
.footer-nav a { color: #b9c6d6; display: block; margin-bottom: 10px; font-size: .9rem; }
.footer-nav a:hover { color: var(--gold-light); }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,.1); padding-top: 22px; text-align: center;
  color: #7e93aa; font-size: .8rem; letter-spacing: .04em;
}

/* ---------- 汎用 ---------- */
.text-center { text-align: center; }
.mt-32 { margin-top: 32px; }