/* ==========================================================================
   Shimada Labs Editorial & Elegant Mincho Theme
   Inspired by: Studio Tremo (https://studio-tremo.com/)
   - ゴシック完全排除（上品な縦長・筆致の美しい明朝体 Shippori Mincho / Noto Serif JP）
   - 余白を贅沢に取った呼吸感あるレイアウト
   - 繊細な細線（1px border #e8e6e1）、静寂のあるエクリュ・サンドベージュトーン
   - 日本語タイポグラフィの美学（letter-spacing, line-height 2.0+）
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Cormorant+Garamond:ital,wght@0,400;0,500;0,600;0,700;1,400&family=Noto+Serif+JP:wght@300;400;500;600;700&family=Shippori+Mincho:wght@400;500;600;700;800&display=swap');

:root {
  /* 背景・サーフェス（まろやかなオフホワイト・和紙のような風合い） */
  --bg-main: #fcfbfa;
  --bg-card: #ffffff;
  --bg-sub: #f6f4f0;
  --bg-tint: #f0ede6;
  
  /* 境界線（極細で上品なニュアンスカラー） */
  --border-delicate: #ebe7e0;
  --border-card: #e2ded5;
  --border-dark: #8c827a;
  
  /* テキスト（漆黒ではなく、深みのある墨色・チャコールブラウン） */
  --text-primary: #2b2825;
  --text-secondary: #5c554e;
  --text-muted: #8c827a;
  --text-light: #b3aba2;
  
  /* アクセント（侘び寂びを感じる上品な枯茶・オリーブティール・墨） */
  --accent-gold: #9e8556;
  --accent-olive: #60725a;
  --accent-ink: #1f2022;
  
  --shadow-subtle: 0 4px 20px rgba(43, 40, 37, 0.03);
  --shadow-float: 0 12px 36px rgba(43, 40, 37, 0.06);
  
  --radius-sm: 2px;
  --radius-md: 4px;
  --radius-lg: 8px;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Shippori Mincho', 'Noto Serif JP', 'Yu Mincho', 'Hiragino Mincho ProN', serif;
  background-color: var(--bg-main);
  color: var(--text-primary);
  line-height: 2.1;
  font-size: 15px;
  letter-spacing: 0.08em;
  -webkit-font-smoothing: antialiased;
}

/* 欧文専用クラス */
.eng {
  font-family: 'Cormorant Garamond', 'Georgia', serif;
  letter-spacing: 0.15em;
  font-weight: 400;
  font-style: normal;
}

/* ヘッダー */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(252, 251, 250, 0.95);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border-delicate);
  transition: all 0.3s ease;
}

.header-container {
  max-width: 1240px;
  margin: 0 auto;
  padding: 14px 36px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.brand-logo {
  display: flex;
  align-items: center;
  gap: 14px;
  text-decoration: none;
  color: inherit;
}

.brand-badge-icon {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  border: 1px solid var(--border-card);
  color: var(--accent-gold);
  display: flex;
  align-items: center;
  justify-content: center;
}

.brand-logo-text {
  display: flex;
  flex-direction: column;
}

.logo-title {
  font-family: 'Cormorant Garamond', serif;
  font-weight: 600;
  font-size: 1.25rem;
  letter-spacing: 0.16em;
  color: var(--text-primary);
  line-height: 1.2;
}

.logo-subtitle {
  font-family: 'Cormorant Garamond', serif;
  font-size: 0.68rem;
  letter-spacing: 0.22em;
  color: var(--text-muted);
  text-transform: uppercase;
}

.header-nav {
  display: flex;
  align-items: center;
  gap: 36px;
}

.nav-link {
  text-decoration: none;
  color: var(--text-secondary);
  font-size: 0.88rem;
  letter-spacing: 0.12em;
  position: relative;
  padding-bottom: 4px;
  transition: color 0.3s;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0%;
  height: 1px;
  background: var(--accent-gold);
  transition: width 0.3s ease;
}

.nav-link:hover {
  color: var(--text-primary);
}

.nav-link:hover::after {
  width: 100%;
}

.nav-link.highlight {
  color: var(--accent-gold);
}

.nav-btn {
  text-decoration: none;
  border: 1px solid var(--text-primary);
  color: var(--text-primary);
  font-size: 0.82rem;
  letter-spacing: 0.14em;
  padding: 8px 24px;
  border-radius: var(--radius-sm);
  transition: all 0.3s ease;
}

.nav-btn:hover {
  background: var(--text-primary);
  color: #fff;
}

/* ヒーローセクション（静寂と品格・Studio Tremoスタイル） */
.hero-section {
  padding: 140px 36px 120px;
  text-align: center;
  background: radial-gradient(ellipse at 50% 30%, #ffffff 0%, var(--bg-main) 70%);
  position: relative;
}

.hero-container {
  max-width: 1080px;
  margin: 0 auto;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  border-bottom: 1px solid var(--border-card);
  padding-bottom: 10px;
  margin-bottom: 40px;
}

.hero-badge-en {
  font-family: 'Cormorant Garamond', serif;
  font-size: 0.95rem;
  letter-spacing: 0.28em;
  color: var(--accent-gold);
  text-transform: uppercase;
}

.hero-badge-jp {
  font-size: 0.82rem;
  letter-spacing: 0.15em;
  color: var(--text-muted);
}

.hero-title {
  font-size: 2.85rem;
  font-weight: 500;
  line-height: 1.4;
  color: var(--text-primary);
  margin-bottom: 44px;
  letter-spacing: 0.1em;
}

.hero-title-line {
  display: inline-block;
  white-space: nowrap;
}

.title-subtext {
  display: inline-block;
  position: relative;
}

.title-subtext::after {
  content: '';
  position: absolute;
  bottom: 6px;
  left: 0;
  width: 100%;
  height: 1px;
  background: var(--accent-gold);
  opacity: 0.6;
}

.hero-lead {
  font-size: 1.05rem;
  color: var(--text-secondary);
  line-height: 2.3;
  margin-bottom: 60px;
  max-width: 740px;
  margin-left: auto;
  margin-right: auto;
}

.hero-actions {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 28px;
  flex-wrap: wrap;
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  background: var(--text-primary);
  color: #fff;
  text-decoration: none;
  font-size: 0.92rem;
  letter-spacing: 0.15em;
  padding: 16px 36px;
  border-radius: var(--radius-sm);
  transition: all 0.3s ease;
}

.btn-primary:hover {
  background: var(--accent-gold);
  transform: translateY(-2px);
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  background: transparent;
  color: var(--text-secondary);
  border: 1px solid var(--border-card);
  text-decoration: none;
  font-size: 0.92rem;
  letter-spacing: 0.15em;
  padding: 15px 32px;
  border-radius: var(--radius-sm);
  transition: all 0.3s ease;
}

.btn-secondary:hover {
  border-color: var(--text-primary);
  color: var(--text-primary);
}

/* セクション共通（潤沢な余白） */
.section-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 130px 36px;
}

.section-header {
  text-align: center;
  max-width: 1040px;
  margin: 0 auto 70px;
}

.section-tag {
  font-family: 'Cormorant Garamond', serif;
  font-size: 0.95rem;
  letter-spacing: 0.3em;
  color: var(--accent-gold);
  text-transform: uppercase;
  margin-bottom: 16px;
  display: block;
}

.section-title {
  font-size: 2.2rem;
  font-weight: 500;
  color: var(--text-primary);
  margin-bottom: 20px;
  line-height: 1.5;
  letter-spacing: 0.08em;
  word-break: keep-all;
  overflow-wrap: anywhere;
}

.section-desc {
  font-size: 0.95rem;
  color: var(--text-muted);
  line-height: 2.2;
  letter-spacing: 0.06em;
  word-break: keep-all;
  overflow-wrap: anywhere;
}

/* 3つの柱グリッド */
.pillars-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

.pillar-card {
  background: var(--bg-card);
  border: 1px solid var(--border-delicate);
  border-radius: var(--radius-sm);
  padding: 44px 32px 36px;
  box-shadow: var(--shadow-subtle);
  display: flex;
  flex-direction: column;
  transition: all 0.3s ease;
  position: relative;
}

.pillar-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-float);
  border-color: var(--border-card);
}

.pillar-card.featured {
  border-top: 2px solid var(--accent-gold);
}

.pillar-card-num {
  font-family: 'Cormorant Garamond', serif;
  font-size: 1.4rem;
  letter-spacing: 0.1em;
  color: var(--accent-gold);
  margin-bottom: 20px;
}

.pillar-status {
  margin-bottom: 16px;
}

.status-badge {
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  padding: 4px 12px;
  border-radius: var(--radius-sm);
  display: inline-block;
}

.status-badge.live {
  background: var(--bg-sub);
  color: var(--text-muted);
}

.status-badge.live-primary {
  background: var(--bg-sub);
  color: var(--accent-gold);
  border: 1px solid var(--border-card);
}

.pillar-title {
  font-size: 1.3rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 16px;
  line-height: 1.5;
  letter-spacing: 0.08em;
}

.pillar-desc {
  font-size: 0.92rem;
  color: var(--text-secondary);
  line-height: 2.1;
  flex-grow: 1;
  margin-bottom: 28px;
}

.pillar-specs {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 24px;
}

.spec-tag {
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  background: var(--bg-sub);
  color: var(--text-muted);
  padding: 4px 10px;
  border-radius: var(--radius-sm);
}

.card-footer-action {
  border-top: 1px solid var(--border-delicate);
  padding-top: 20px;
  margin-top: auto;
}

.inline-link {
  text-decoration: none;
  color: var(--text-primary);
  font-size: 0.9rem;
  letter-spacing: 0.12em;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  transition: color 0.3s, gap 0.3s;
}

.inline-link:hover {
  color: var(--accent-gold);
  gap: 12px;
}

/* ショーケース・特集セクション */
.showcase-bg {
  background: var(--bg-card);
  border: 1px solid var(--border-delicate);
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-subtle);
}

.showcase-inner {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 60px;
  align-items: center;
  padding: 50px 40px;
}

.featured-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: 'Cormorant Garamond', serif;
  font-size: 0.85rem;
  letter-spacing: 0.24em;
  color: var(--accent-gold);
  margin-bottom: 24px;
  text-transform: uppercase;
}

.showcase-title {
  font-size: 2.3rem;
  font-weight: 500;
  line-height: 1.45;
  margin-bottom: 24px;
  letter-spacing: 0.1em;
}

.showcase-lead {
  font-size: 1rem;
  color: var(--text-secondary);
  line-height: 2.2;
  margin-bottom: 32px;
}

.showcase-points {
  list-style: none;
  margin-bottom: 40px;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.showcase-points li {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  font-size: 0.95rem;
  line-height: 1.9;
}

.point-num {
  font-family: 'Cormorant Garamond', serif;
  font-size: 1rem;
  color: var(--accent-gold);
  flex-shrink: 0;
  margin-top: 1px;
}

.showcase-points strong {
  color: var(--text-primary);
  font-weight: 600;
}

.showcase-points span {
  color: var(--text-secondary);
}

/* パイプライン・ビジュアルカード */
.visual-card {
  background: var(--bg-sub);
  border: 1px solid var(--border-delicate);
  border-radius: var(--radius-sm);
  padding: 32px 28px;
}

.visual-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 24px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--border-card);
}

.visual-title {
  font-family: 'Cormorant Garamond', serif;
  font-size: 0.95rem;
  letter-spacing: 0.2em;
  color: var(--text-muted);
  text-transform: uppercase;
}

.pipeline-steps {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.p-step {
  background: #ffffff;
  border: 1px solid var(--border-delicate);
  border-radius: var(--radius-sm);
  padding: 16px 20px;
  display: flex;
  align-items: center;
  gap: 16px;
}

.p-step.p-step-final {
  border-left: 2px solid var(--accent-gold);
}

.p-num {
  font-family: 'Cormorant Garamond', serif;
  font-size: 1.15rem;
  color: var(--accent-gold);
  flex-shrink: 0;
}

.p-text {
  flex-grow: 1;
}

.p-label {
  font-size: 0.76rem;
  letter-spacing: 0.12em;
  color: var(--text-muted);
}

.p-val {
  font-size: 0.92rem;
  font-weight: 600;
  color: var(--text-primary);
}

.highlight-val {
  color: var(--accent-gold);
}

.p-arrow {
  text-align: center;
  color: var(--text-light);
  font-family: 'Cormorant Garamond', serif;
  font-size: 0.9rem;
}

/* 哲学セクション */
.philosophy-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 36px;
}

.philo-card {
  background: #ffffff;
  border: 1px solid var(--border-delicate);
  border-radius: var(--radius-sm);
  padding: 44px 32px;
}

.philo-number {
  font-family: 'Cormorant Garamond', serif;
  font-size: 2.2rem;
  color: var(--accent-gold);
  margin-bottom: 20px;
  line-height: 1;
}

.philo-card h3 {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 18px;
  line-height: 1.5;
  letter-spacing: 0.08em;
}

.philo-card p {
  font-size: 0.92rem;
  color: var(--text-secondary);
  line-height: 2.2;
}

/* フッター */
.site-footer {
  background: #ffffff;
  border-top: 1px solid var(--border-delicate);
  padding: 90px 36px 60px;
  margin-top: 60px;
}

.footer-container {
  max-width: 1200px;
  margin: 0 auto;
}

.footer-top {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 60px;
  padding-bottom: 60px;
  border-bottom: 1px solid var(--border-delicate);
}

.footer-desc {
  font-size: 0.92rem;
  color: var(--text-muted);
  margin-top: 18px;
  max-width: 440px;
  line-height: 2.2;
}

.footer-contact-box h4 {
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 12px;
  letter-spacing: 0.08em;
}

.footer-contact-box p {
  font-size: 0.9rem;
  color: var(--text-secondary);
  margin-bottom: 24px;
  line-height: 2.0;
}

.footer-mail-btn {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  background: transparent;
  color: var(--text-primary);
  text-decoration: none;
  font-family: 'Cormorant Garamond', serif;
  font-size: 1.05rem;
  letter-spacing: 0.12em;
  padding: 10px 24px;
  border: 1px solid var(--text-primary);
  border-radius: var(--radius-sm);
  transition: all 0.3s ease;
}

.footer-mail-btn:hover {
  background: var(--text-primary);
  color: #fff;
}

.footer-bottom {
  padding-top: 30px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
  font-size: 0.82rem;
  letter-spacing: 0.08em;
  color: var(--text-muted);
}

/* レスポンシブ */
@media (max-width: 960px) {
  .hero-title {
    font-size: 2.2rem;
  }
  .hero-title-line {
    white-space: normal;
  }
  .pillars-grid,
  .philosophy-grid {
    grid-template-columns: 1fr;
  }
  .showcase-inner {
    grid-template-columns: 1fr;
  }
  .footer-top {
    grid-template-columns: 1fr;
    gap: 36px;
  }
  .header-nav {
    display: none;
  }
}