/* ============================================================
   合同会社GAN. ブランドスタイル
   GANブランド: 黒ワードマーク + 緑→青の円形マーク
   配色トークンは :root に集約。
   ============================================================ */
:root {
  /* Brand core (gan-brand skill) */
  --gan-black: #0A0A0A;
  --gan-green: #2E7D46;
  --gan-blue: #1F6FC4;
  --gan-white: #FFFFFF;
  --gan-gray: #6B6B6B;
  --gan-gradient: linear-gradient(45deg, #2E7D46 0%, #1F6FC4 100%); /* ロゴマーク専用 / logo mark only */

  /* Typography (gan-brand skill) */
  --font-heading: Georgia, "Times New Roman", serif;
  --font-body:    "Helvetica Neue", Arial, sans-serif;

  /* Derived accent tints (緑/青ベース) */
  --gan-blue-strong: #195a9f;          /* hover / 濃いめ青 */
  --gan-blue-050: #eef4fb;             /* ghost / outline hover 背景 */
  --gan-blue-100: #dbe9f8;             /* badge 背景 */
  --gan-blue-200: #bcd5ef;             /* card hover border */

  /* Text & surfaces */
  --gan-ink: #0A0A0A;                  /* 見出し・本文 */
  --gan-ink-soft: #333333;             /* 段落本文（可読性確保・AA） */
  --gan-muted: #6B6B6B;                /* 補助テキスト */
  --gan-border: #e5e7eb;               /* 中立ボーダー */
  --gan-surface: #f5f7f9;              /* 明るいセクション背景 */
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 88px; }
body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--gan-ink);
  background: var(--gan-white);
  line-height: 1.75;
}
a { color: var(--gan-blue); text-decoration: none; }
a:hover { text-decoration: underline; }
h1, h2, h3, h4 { font-family: var(--font-heading); line-height: 1.35; margin: 0 0 16px; color: var(--gan-ink); }
h4 { font-size: .95rem; }
p { margin: 0 0 16px; color: var(--gan-ink-soft); }
ul { margin: 0 0 16px; padding-left: 1.2em; }

.container { width: min(1120px, calc(100% - 40px)); margin: 0 auto; }

/* Header */
.site-header { position: sticky; top: 0; z-index: 20; background: rgba(255, 255, 255, .96); border-bottom: 1px solid var(--gan-border); }
.header-inner { min-height: 76px; display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.logo { display: flex; flex-direction: column; align-items: flex-start; gap: 4px; color: var(--gan-ink); min-width: 210px; }
.logo:hover { text-decoration: none; }
.logo-main { display: block; height: 52px; width: auto; } /* 公式ロゴ画像（GAN + マーク） */
.logo-sub { font-size: .76rem; color: var(--gan-muted); }
.nav { display: flex; align-items: center; gap: 14px; font-size: .9rem; }
.nav a { color: #374151; }
.nav a.is-current { color: var(--gan-blue); font-weight: 700; }
.hamburger { display: none; width: 44px; height: 44px; border: 1px solid var(--gan-border); background: var(--gan-white); border-radius: 12px; align-items: center; justify-content: center; flex-direction: column; gap: 5px; }
.hamburger span { width: 20px; height: 2px; background: var(--gan-ink); display: block; }

/* Buttons */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; border-radius: 999px; padding: 11px 18px; font-weight: 700; border: 1px solid transparent; line-height: 1.2; cursor: pointer; }
.btn-primary { background: var(--gan-green); color: var(--gan-white) !important; }
.btn-primary:hover { filter: brightness(1.06); text-decoration: none; }
.btn-outline { border-color: var(--gan-blue); color: var(--gan-blue); background: var(--gan-white); }
.btn-outline:hover { background: var(--gan-blue-050); text-decoration: none; }
.btn-ghost { color: var(--gan-blue); background: var(--gan-blue-050); }
.btn-ghost:hover { text-decoration: none; background: var(--gan-blue-100); }

/* Hero */
.hero { padding: 80px 0; background: var(--gan-surface); }
.hero-grid { display: grid; grid-template-columns: 1.2fr .8fr; gap: 48px; align-items: center; }
/* 見出しは横幅いっぱいに1行表示 */
.hero-title {
  font-size: clamp(2rem, 4.4vw, 3.6rem);
  line-height: 1.2;
  letter-spacing: .01em;
  margin: 0 0 36px;
  white-space: nowrap;
}
/* 見出しの下に「詳細文＋ボタン」と「画像」を2列で配置 */
.hero-body {
  display: grid;
  grid-template-columns: 1fr .85fr;
  gap: 56px;
  align-items: center;
}
.lead { font-size: 1.08rem; color: var(--gan-ink-soft); }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 28px; }
.hero-card { border-left: 5px solid var(--gan-green); }

/* Sections */
.section { padding: 72px 0; }
.section.light { background: var(--gan-surface); }
.section-head { display: flex; align-items: flex-end; justify-content: space-between; gap: 24px; margin-bottom: 28px; }
.section-head p { max-width: 720px; }
.page-hero { padding: 56px 0 48px; background: var(--gan-surface); border-bottom: 1px solid var(--gan-border); }
.page-hero h1 { font-size: clamp(1.8rem, 3vw, 2.7rem); }
.breadcrumb { display: flex; gap: 10px; align-items: center; font-size: .9rem; color: var(--gan-muted); margin-bottom: 18px; }
.breadcrumb a { color: var(--gan-muted); }

/* Cards */
.card { display: block; background: var(--gan-white); border: 1px solid var(--gan-border); border-radius: 18px; padding: 24px; box-shadow: 0 10px 30px rgba(10, 10, 10, .04); }
.card:hover { text-decoration: none; border-color: var(--gan-blue-200); }
.card-grid { display: grid; gap: 20px; }
.card-grid.two { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.card-grid.three { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.card-grid.four { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.split { display: grid; grid-template-columns: 1fr 1fr; gap: 32px; align-items: start; }
.stacked { display: grid; gap: 24px; }
.detail-card { scroll-margin-top: 100px; }

/* Info blocks */
.info-list { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 20px; }
.info-list > div { background: var(--gan-surface); border: 1px solid var(--gan-border); border-radius: 14px; padding: 18px; }
.info-table { width: 100%; border-collapse: collapse; background: var(--gan-white); border: 1px solid var(--gan-border); }
.info-table th, .info-table td { padding: 14px 16px; border-bottom: 1px solid var(--gan-border); text-align: left; vertical-align: top; }
.info-table th { width: 220px; background: var(--gan-surface); color: var(--gan-ink); }
.spec-list { display: grid; grid-template-columns: 90px 1fr; gap: 10px 14px; }
.spec-list dt { font-weight: 700; color: var(--gan-ink); }
.spec-list dd { margin: 0; color: var(--gan-ink-soft); }
.note { background: var(--gan-white); border: 1px solid var(--gan-border); border-left: 5px solid var(--gan-blue); border-radius: 14px; padding: 18px; color: var(--gan-ink-soft); }

/* Badge */
.badge { display: inline-flex; align-items: center; width: max-content; border: 1px solid var(--gan-blue-200); background: var(--gan-blue-100); color: var(--gan-blue-strong); border-radius: 999px; padding: 4px 10px; font-weight: 700; font-size: .82rem; margin-bottom: 12px; }

/* Anchor nav */
.anchor-nav { display: flex; flex-wrap: wrap; gap: 10px; }
.anchor-nav a { border: 1px solid var(--gan-border); border-radius: 999px; padding: 9px 14px; background: var(--gan-white); color: var(--gan-blue); font-weight: 700; }

/* News */
.news-list { list-style: none; padding: 0; margin: 0; border: 1px solid var(--gan-border); border-radius: 18px; overflow: hidden; background: var(--gan-white); }
.news-list li { display: grid; grid-template-columns: 120px 100px 1fr; gap: 16px; align-items: center; padding: 16px 20px; border-bottom: 1px solid var(--gan-border); }
.news-list li:last-child { border-bottom: 0; }
.news-list time { color: var(--gan-muted); }
.news-list span { color: var(--gan-blue); font-weight: 700; }
.news-list.large li { padding: 20px; }
.category-row { display: flex; gap: 10px; margin-bottom: 20px; }
.related-links { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 18px; }

/* CTA */
.cta-section { padding: 56px 0; background: var(--gan-green); color: var(--gan-white); }
.cta-section h2, .cta-section p { color: var(--gan-white); }
.cta-inner { display: flex; align-items: center; justify-content: space-between; gap: 28px; }
.cta-section .btn-primary { background: var(--gan-white); color: var(--gan-blue-strong) !important; }
.cta-section .btn-primary:hover { filter: none; background: var(--gan-blue-050); }

/* Contact form */
.contact-form { background: var(--gan-white); border: 1px solid var(--gan-border); border-radius: 18px; padding: 24px; display: grid; gap: 16px; }
.contact-form label { display: block; font-weight: 700; color: var(--gan-ink); margin-bottom: 6px; }
.contact-form label span { color: var(--gan-blue); font-size: .85rem; }
.contact-form input, .contact-form select, .contact-form textarea { width: 100%; border: 1px solid #d1d5db; border-radius: 10px; padding: 12px; font: inherit; color: var(--gan-ink); background: var(--gan-white); }

/* Footer */
.site-footer { padding: 42px 0 24px; background: var(--gan-black); color: #e5e7eb; }
.site-footer p { color: #d1d5db; }
.footer-inner { display: flex; justify-content: space-between; gap: 32px; }
.footer-logo { margin: 0 0 8px; }
.footer-logo-img { display: block; height: 34px; width: auto; }
.footer-nav { display: flex; flex-wrap: wrap; gap: 12px; justify-content: flex-end; max-width: 650px; }
.footer-nav a { color: #e5e7eb; }
.copyright { margin-top: 24px; color: #9ca3af; font-size: .9rem; }

/* ============================================================
   Illustrations (loosedrawing.com フリーイラスト)
   コンテンツ文面・構造は変更せず、視覚的な分かりやすさを補強する
   ============================================================ */

/* Hero 図版（見出しは全幅1行、下段で詳細文と2列） */
.hero-text { min-width: 0; }
.hero-figure { margin: 0; display: flex; align-items: center; justify-content: center; }
.hero-figure img {
  width: 100%; max-width: 380px; height: auto;
  filter: drop-shadow(0 18px 36px rgba(31, 111, 196, .14));
}

/* セクション見出し横に添える小さなイラスト */
.section-illust { display: flex; align-items: center; gap: 28px; flex-wrap: wrap; }
.section-illust .section-illust-body { flex: 1 1 320px; min-width: 0; }
.section-illust .section-illust-media {
  flex: 0 0 200px; display: flex; align-items: center; justify-content: center;
}
.section-illust .section-illust-media img {
  width: 100%; max-width: 220px; height: auto;
  filter: drop-shadow(0 12px 28px rgba(10, 10, 10, .08));
}
.section-illust.reverse { flex-direction: row-reverse; }

/* カード上部に丸いイラストアイコンを配置 */
.card-illust {
  width: 76px; height: 76px; border-radius: 18px;
  background: var(--gan-blue-050);
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 16px; overflow: hidden;
}
.card-illust img { width: 60px; height: 60px; object-fit: contain; }

/* 詳細カード（対応領域・事業紹介）の見出し脇イラスト */
.detail-card { position: relative; }
.detail-head { display: flex; align-items: center; gap: 18px; margin-bottom: 4px; }
.detail-head h2 { margin: 0; }
.detail-illust {
  flex: 0 0 84px; width: 84px; height: 84px; border-radius: 20px;
  background: var(--gan-surface); border: 1px solid var(--gan-border);
  display: flex; align-items: center; justify-content: center; overflow: hidden;
}
.detail-illust img { width: 64px; height: 64px; object-fit: contain; }

/* アンカーナビ用のセクション区切りイラスト帯 */
.illust-band {
  display: flex; align-items: center; justify-content: center; gap: 40px;
  flex-wrap: wrap;
}
.illust-band figure { margin: 0; text-align: center; max-width: 150px; }
.illust-band img {
  width: 120px; height: 120px; object-fit: contain;
  filter: drop-shadow(0 12px 24px rgba(10, 10, 10, .06));
}
.illust-band figcaption { font-size: .82rem; color: var(--gan-muted); margin-top: 8px; }

/* CTA セクションのイラスト
   透過部分が緑背景を透かさないよう、白い角丸チップを敷く */
.cta-inner .cta-illust {
  flex: 0 0 120px;
  width: 120px; height: 120px;
  background: var(--gan-white);
  border-radius: 24px;
  display: flex; align-items: center; justify-content: center;
  box-shadow: 0 10px 24px rgba(0, 0, 0, .18);
}
.cta-inner .cta-illust img {
  width: 92px; height: 92px; object-fit: contain;
}

/* フォーム横などの補助イラスト */
.aside-illust { text-align: center; margin: 8px 0 24px; }
.aside-illust img { width: 100%; max-width: 240px; height: auto; }

/* 出典クレジット */
.credit-line { color: #9ca3af; font-size: .82rem; margin-top: 6px; }
.credit-line a { color: #cbd5e1; }

/* Responsive */
@media (max-width: 960px) {
  .hero-body { grid-template-columns: 1fr; gap: 32px; }
  .hero-figure { order: -1; }
  .hero-figure img { max-width: 280px; }
  .section-illust .section-illust-media { flex-basis: 160px; }
  .cta-inner .cta-illust { display: none; }
}
@media (max-width: 640px) {
  .hero-title { white-space: normal; }
  .section-illust { display: block; }
  .section-illust .section-illust-media { margin-bottom: 20px; }
  .detail-head { flex-direction: column; align-items: flex-start; gap: 12px; }
  .illust-band { gap: 20px; }
  .illust-band img { width: 88px; height: 88px; }
}

/* Responsive */
@media (max-width: 960px) {
  .hamburger { display: flex; }
  .nav { position: absolute; top: 76px; left: 0; right: 0; display: none; flex-direction: column; align-items: stretch; background: var(--gan-white); border-bottom: 1px solid var(--gan-border); padding: 16px 20px; }
  .nav.is-open { display: flex; }
  .nav a { padding: 8px 0; }
  .hero-grid, .split { grid-template-columns: 1fr; }
  .card-grid.two, .card-grid.three, .card-grid.four, .related-links { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .info-list { grid-template-columns: 1fr; }
  .section-head { display: block; }
  .footer-inner { display: block; }
  .footer-nav { justify-content: flex-start; margin-top: 20px; }
  .cta-inner { display: block; }
  .cta-inner .btn { margin-top: 12px; }
}
@media (max-width: 640px) {
  .container { width: min(100% - 28px, 1120px); }
  .header-inner { min-height: 70px; }
  .logo-main { height: 44px; }
  .logo-sub { font-size: .68rem; }
  .hero, .section { padding: 48px 0; }
  .page-hero { padding: 36px 0; }
  .card-grid.two, .card-grid.three, .card-grid.four, .related-links { grid-template-columns: 1fr; }
  .news-list li { grid-template-columns: 1fr; gap: 4px; }
  .info-table th, .info-table td { display: block; width: 100%; }
  .spec-list { grid-template-columns: 1fr; }
  .nav { top: 70px; }
}