/**
 * SIDE STREET 路地裏 — Global Stylesheet
 * /assets/css/global.css
 *
 * 構成:
 *   1. Variables & Reset
 *   2. Base Typography
 *   3. Header & Nav
 *   4. Breadcrumb
 *   5. Footer
 *   6. Shared Components (section-label, cards, badges, tags...)
 *   7. Article Body (body_htmlの中身)
 *   8. Sidebar & Widgets
 *   9. Newsletter
 *  10. Animations
 *  11. Responsive
 */

/* ============================================================
   1. VARIABLES & RESET
   ============================================================ */
:root {
  --ink: #1a1510;
  --paper: #f5f0e8;
  --cream: #ede8dc;
  --red: #c0392b;
  --red-dark: #8b1a0f;
  --gold: #c9952a;
  --muted: #7a7268;
  --deep: #0f0d0a;
  --white: #fdfaf4;
  --border: #ddd8ce;
  --sidebar-w: 300px;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'DM Sans', sans-serif;
  background: var(--paper);
  color: var(--ink);
  overflow-x: hidden;
}

/* ============================================================
   2. BASE TYPOGRAPHY
   ============================================================ */
a {
  color: inherit;
}

/* ============================================================
   3. HEADER & NAV
   ============================================================ */
header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 3rem;
  height: 60px;
  background: var(--deep);
  border-bottom: 2px solid var(--red);
}

.logo {
  font-family: 'Shippori Mincho', serif;
  font-size: 1.15rem;
  font-weight: 800;
  color: var(--white);
  letter-spacing: 0.06em;
  text-decoration: none;
  display: flex;
  align-items: left;
  gap: 10px;
}

.logo span.jp {
  font-size: 0.7rem;
  color: var(--red);
  letter-spacing: 0.18em;
  font-weight: 400;
  margin-top: 10px;
}

header nav {
  display: flex;
  gap: 2rem;
  align-items: center;
}

header nav a {
  color: #bbb;
  text-decoration: none;
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  transition: color 0.2s;
  position: relative;
}

header nav a:hover {
  color: var(--white);
}

header nav a.active {
  color: var(--white);
}

header nav a.active::after {
  content: '';
  position: absolute;
  bottom: -22px;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--red);
}

/* TOP用CTAボタン */
.nav-cta {
  background: var(--red);
  color: var(--white) !important;
  padding: 6px 14px;
  border-radius: 2px;
  transition: background 0.2s !important;
}

.nav-cta:hover {
  background: var(--red-dark) !important;
}

/* EN / JP 切り替え */
.lang-switch {
  display: flex;
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 2px;
  overflow: hidden;
  margin-left: 1rem;
}

.lang-switch a {
  padding: 5px 10px;
  font-family: 'DM Mono', monospace;
  font-size: 0.68rem;
  letter-spacing: 0.1em;
  color: #888;
  text-decoration: none;
  transition: background 0.2s, color 0.2s;
}

.lang-switch a.active {
  background: var(--red);
  color: var(--white);
}

.lang-switch a:hover:not(.active) {
  background: rgba(255, 255, 255, 0.08);
  color: var(--white);
}

/* ============================================================
   4. BREADCRUMB
   ============================================================ */
.breadcrumb {
  margin-top: 60px;
  padding: 0.75rem 3rem;
  background: var(--cream);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.breadcrumb a {
  color: var(--muted);
  text-decoration: none;
  font-size: 0.75rem;
  font-family: 'DM Mono', monospace;
  letter-spacing: 0.05em;
  transition: color 0.2s;
}

.breadcrumb a:hover {
  color: var(--red);
}

.breadcrumb span {
  color: var(--border);
  font-size: 0.7rem;
}

.breadcrumb .current {
  color: var(--ink);
  font-size: 0.75rem;
  font-family: 'DM Mono', monospace;
  letter-spacing: 0.05em;
}

/* ============================================================
   5. FOOTER
   ============================================================ */

/* TOP用フッター（4カラム） */
footer.footer-wide {
  background: var(--deep);
  padding: 4rem 5rem 2rem;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: 3rem;
  margin-bottom: 3rem;
}

.footer-brand p {
  font-size: 0.82rem;
  color: #555;
  line-height: 1.7;
  font-weight: 300;
  max-width: 260px;
}

.footer-col h4 {
  font-family: 'DM Mono', monospace;
  font-size: 0.65rem;
  color: #555;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  margin-bottom: 1.2rem;
}

.footer-col a {
  display: block;
  color: #555;
  text-decoration: none;
  font-size: 0.85rem;
  line-height: 2;
  transition: color 0.2s;
  font-weight: 300;
}

.footer-col a:hover {
  color: var(--white);
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 2rem;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  gap: 1rem;
  flex-wrap: wrap;
}

.footer-bottom p {
  font-size: 0.75rem;
  color: #444;
  font-weight: 300;
}

.footer-social {
  display: flex;
  gap: 1.5rem;
}

.footer-social a {
  color: #555;
  text-decoration: none;
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  font-family: 'DM Mono', monospace;
  transition: color 0.2s;
}

.footer-social a:hover {
  color: var(--white);
}

/* 記事・カテゴリ用フッター（シンプル2カラム） */
footer.footer-slim {
  background: var(--deep);
  padding: 2.5rem 3rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  flex-wrap: wrap;
  gap: 1rem;
}

.logo-f {
  font-family: 'Shippori Mincho', serif;
  font-size: 1.1rem;
  font-weight: 800;
  color: var(--white);
  text-decoration: none;
  letter-spacing: 0.06em;
  display: block;
  margin-bottom: 0.4rem;
}

footer.footer-slim p {
  font-size: 0.75rem;
  color: #444;
  font-weight: 300;
}

.footer-nav {
  display: flex;
  gap: 1.5rem;
  flex-wrap: wrap;
}

.footer-nav a {
  color: #555;
  text-decoration: none;
  font-size: 0.75rem;
  font-family: 'DM Mono', monospace;
  letter-spacing: 0.08em;
  transition: color 0.2s;
}

.footer-nav a:hover {
  color: var(--white);
}

/* ============================================================
   6. SHARED COMPONENTS
   ============================================================ */

/* セクションラベル（赤ライン付き） */
.section-label {
  font-family: 'DM Mono', monospace;
  font-size: 0.65rem;
  color: var(--red);
  letter-spacing: 0.3em;
  text-transform: uppercase;
  margin-bottom: 1.5rem;
  display: flex;
  align-items: center;
  gap: 10px;
}

.section-label::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--border);
}

/* セクションヘッダー（タイトル＋リンクの横並び） */
.section-header {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  margin-bottom: 3.5rem;
  gap: 1rem;
  flex-wrap: wrap;
}

.section-title {
  font-family: 'Shippori Mincho', serif;
  font-size: clamp(1.8rem, 3.5vw, 2.8rem);
  font-weight: 800;
  line-height: 1.1;
  color: var(--ink);
}

.section-link {
  color: var(--muted);
  text-decoration: none;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  white-space: nowrap;
  border-bottom: 1px solid var(--muted);
  padding-bottom: 2px;
  transition: color 0.2s, border-color 0.2s;
}

.section-link:hover {
  color: var(--red);
  border-color: var(--red);
}

/* 記事カード（カテゴリTOP・検索結果共通） */
.article-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: 2px;
  overflow: hidden;
  text-decoration: none;
  color: var(--ink);
  display: flex;
  flex-direction: column;
  transition: border-color 0.2s, transform 0.2s, box-shadow 0.2s;
  position: relative;
}

.article-card:hover {
  border-color: rgba(192, 57, 43, 0.35);
  transform: translateY(-3px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.07);
}

.article-card.deep-card {
  border-color: rgba(201, 149, 42, 0.2);
  background: #faf7f0;
}

.article-card.deep-card:hover {
  border-color: var(--gold);
}

.deep-badge {
  position: absolute;
  top: 10px;
  right: 10px;
  background: var(--deep);
  color: var(--gold);
  font-family: 'DM Mono', monospace;
  font-size: 0.58rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  padding: 3px 8px;
  border-radius: 2px;
}

.card-thumb {
  height: 160px;
  /*background: linear-gradient(135deg, var(--cream) 0%, #d0c8b8 100%);*/
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 3rem;
  position: relative;
  overflow: hidden;
}

.card-thumb .thumb-bg {
  position: absolute;
  font-family: 'Shippori Mincho', serif;
  font-size: 6rem;
  font-weight: 800;
  color: rgba(255, 255, 255, 0.25);
  pointer-events: none;
}

.card-thumb .thumb-emoji {
  position: relative;
  z-index: 2;
}

.card-body {
  padding: 1.25rem 1.5rem 1.5rem;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.card-cat {
  font-family: 'DM Mono', monospace;
  font-size: 0.6rem;
  color: var(--red);
  letter-spacing: 0.2em;
  text-transform: uppercase;
  margin-bottom: 0.5rem;
}

.card-body h3 {
  font-family: 'Shippori Mincho', serif;
  font-size: 1.05rem;
  font-weight: 600;
  line-height: 1.3;
  margin-bottom: 0.6rem;
  flex: 1;
}

.card-body p {
  font-size: 0.83rem;
  color: #666;
  line-height: 1.6;
  font-weight: 300;
  margin-bottom: 1rem;
}

.card-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 0.75rem;
  border-top: 1px solid var(--border);
  margin-top: auto;
}

.card-date,
.card-read {
  font-family: 'DM Mono', monospace;
  font-size: 0.62rem;
  color: var(--muted);
  letter-spacing: 0.08em;
}

/* カテゴリタグ（記事ヒーロー） */
.tag-category {
  background: var(--red);
  color: var(--white);
  font-family: 'DM Mono', monospace;
  font-size: 0.65rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  padding: 4px 10px;
  border-radius: 2px;
  text-decoration: none;
  transition: background 0.2s;
}

.tag-category:hover {
  background: var(--red-dark);
}

.tag-classic {
  border: 1px solid rgba(255, 255, 255, 0.2);
  color: rgba(255, 255, 255, 0.6);
  font-family: 'DM Mono', monospace;
  font-size: 0.62rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  padding: 3px 8px;
  border-radius: 2px;
}

/* ページネーション */
.pagination {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 0.5rem;
  padding-top: 3rem;
}

.page-btn {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--border);
  background: var(--white);
  color: var(--muted);
  font-family: 'DM Mono', monospace;
  font-size: 0.78rem;
  text-decoration: none;
  border-radius: 2px;
  transition: background 0.2s, color 0.2s, border-color 0.2s;
}

.page-btn:hover {
  border-color: var(--red);
  color: var(--red);
}

.page-btn.active {
  background: var(--red);
  border-color: var(--red);
  color: var(--white);
}

.page-btn.wide {
  width: auto;
  padding: 0 16px;
}

/* ============================================================
   7. ARTICLE BODY
   ============================================================ */

/* 2カラムレイアウト */
.page-body {
  max-width: 1200px;
  margin: 0 auto;
  padding: 3rem 3rem 5rem;
  display: grid;
  grid-template-columns: 1fr var(--sidebar-w);
  gap: 4rem;
  align-items: start;
}

.article-content {
  min-width: 0;
}

/* TOC（記事内） */
.toc {
  background: var(--cream);
  border: 1px solid var(--border);
  border-left: 3px solid var(--red);
  padding: 1.5rem 1.75rem;
  margin-bottom: 3rem;
  border-radius: 0 4px 4px 0;
}

.toc-title {
  font-family: 'DM Mono', monospace;
  font-size: 0.68rem;
  color: var(--red);
  letter-spacing: 0.25em;
  text-transform: uppercase;
  margin-bottom: 1rem;
}

.toc ol {
  list-style: none;
  counter-reset: toc;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.toc ol li {
  counter-increment: toc;
  display: flex;
  align-items: baseline;
  gap: 10px;
}

.toc ol li::before {
  content: counter(toc, decimal-leading-zero);
  font-family: 'DM Mono', monospace;
  font-size: 0.62rem;
  color: var(--gold);
  flex-shrink: 0;
}

.toc ol li a {
  color: var(--ink);
  text-decoration: none;
  font-size: 0.88rem;
  line-height: 1.4;
  transition: color 0.2s;
  font-weight: 400;
}

.toc ol li a:hover {
  color: var(--red);
}

/* 本文タイポグラフィ */
.article-body {
  line-height: 1.85;
}

.article-body h2 {
  font-family: 'Shippori Mincho', serif;
  font-size: 1.55rem;
  font-weight: 800;
  color: var(--ink);
  margin: 3rem 0 1.25rem;
  padding-bottom: 0.6rem;
  border-bottom: 2px solid var(--cream);
  position: relative;
  scroll-margin-top: 80px;
}

.article-body h2::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 48px;
  height: 2px;
  background: var(--red);
}

.article-body h3 {
  font-family: 'Shippori Mincho', serif;
  font-size: 1.15rem;
  font-weight: 600;
  margin: 2rem 0 0.75rem;
  scroll-margin-top: 80px;
}

.article-body p {
  font-size: 1rem;
  color: #333;
  margin-bottom: 1.25rem;
  font-weight: 300;
}

.article-body strong {
  font-weight: 600;
  color: var(--ink);
}

.article-body em {
  font-style: italic;
  color: var(--muted);
}

.article-body blockquote {
  border-left: 3px solid var(--red);
  padding: 1rem 1.5rem;
  background: var(--cream);
  margin: 2rem 0;
  border-radius: 0 4px 4px 0;
}

.article-body blockquote p {
  font-family: 'Shippori Mincho', serif;
  font-size: 1.1rem;
  font-style: italic;
  color: var(--ink);
  margin: 0;
  font-weight: 400;
}

/* Info box */
.info-box {
  background: var(--deep);
  color: var(--white);
  padding: 1.5rem 2rem;
  border-radius: 4px;
  margin: 2rem 0;
}

.info-box .info-label {
  font-family: 'DM Mono', monospace;
  font-size: 0.62rem;
  color: var(--gold);
  letter-spacing: 0.25em;
  text-transform: uppercase;
  margin-bottom: 0.75rem;
}

.info-box ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.info-box ul li {
  font-size: 0.9rem;
  color: #ccc;
  font-weight: 300;
  padding-left: 1rem;
  position: relative;
}

.info-box ul li strong {
  color: #ffb3b3;
  /* 白に近い柔らかい赤系 */
  font-weight: 500;
}

.info-box ul li::before {
  content: '→';
  position: absolute;
  left: 0;
  color: var(--red);
  font-size: 0.8rem;
}

/* 日本語ワードハイライト */
.jp-word {
  font-family: 'Shippori Mincho', serif;
  font-weight: 600;
  color: var(--red);
  background: rgba(192, 57, 43, 0.07);
  padding: 1px 5px;
  border-radius: 2px;
}

/* 画像プレースホルダー（実運用時はimgに差し替え） */
.article-img {
  width: 100%;
  aspect-ratio: 16/9;
  background: linear-gradient(135deg, var(--cream) 0%, #d8d0c0 100%);
  border-radius: 2px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 2rem 0;
  position: relative;
  overflow: hidden;
}

.article-img::after {
  content: attr(data-caption);
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  background: rgba(15, 13, 10, 0.6);
  color: rgba(255, 255, 255, 0.7);
  font-size: 0.72rem;
  font-family: 'DM Mono', monospace;
  padding: 6px 12px;
  letter-spacing: 0.05em;
}

.img-label {
  font-family: 'DM Mono', monospace;
  font-size: 0.7rem;
  color: var(--muted);
  letter-spacing: 0.1em;
}

/* SNSシェアバー */
.share-bar {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 1.5rem 0;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  margin: 3rem 0;
  flex-wrap: wrap;
}

.share-label {
  font-family: 'DM Mono', monospace;
  font-size: 0.65rem;
  color: var(--muted);
  letter-spacing: 0.2em;
  text-transform: uppercase;
  margin-right: 0.5rem;
}

.share-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 16px;
  border-radius: 2px;
  font-size: 0.78rem;
  font-weight: 600;
  text-decoration: none;
  letter-spacing: 0.05em;
  transition: opacity 0.2s, transform 0.15s;
}

.share-btn:hover {
  opacity: 0.85;
  transform: translateY(-1px);
}

.share-btn.x {
  background: #000;
  color: #fff;
}

.share-btn.fb {
  background: #1877f2;
  color: #fff;
}

.share-btn.reddit {
  background: #ff4500;
  color: #fff;
}

.share-btn.copy {
  background: var(--cream);
  color: var(--ink);
  border: 1px solid var(--border);
}

/* 関連記事 */
.related {
  margin-top: 3rem;
}

.related-title {
  font-family: 'DM Mono', monospace;
  font-size: 0.65rem;
  color: var(--red);
  letter-spacing: 0.3em;
  text-transform: uppercase;
  margin-bottom: 1.5rem;
  display: flex;
  align-items: center;
  gap: 8px;
}

.related-title::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--border);
}

.related-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

.related-card {
  text-decoration: none;
  color: var(--ink);
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: 2px;
  overflow: hidden;
  transition: border-color 0.2s, transform 0.2s;
  display: block;
}

.related-card:hover {
  border-color: var(--red);
  transform: translateY(-2px);
}

.related-card-thumb {
  height: 100px;
  background: linear-gradient(135deg, var(--cream), #ccc8be);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
}

.related-card-body {
  padding: 0.9rem 1rem;
}

.related-card-cat {
  font-family: 'DM Mono', monospace;
  font-size: 0.6rem;
  color: var(--red);
  letter-spacing: 0.18em;
  text-transform: uppercase;
  margin-bottom: 0.4rem;
}

.related-card h4 {
  font-family: 'Shippori Mincho', serif;
  font-size: 0.95rem;
  font-weight: 600;
  line-height: 1.3;
}

/* ============================================================
   8. SIDEBAR & WIDGETS
   ============================================================ */
.sidebar {
  position: sticky;
  top: 80px;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.sidebar-widget {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: 2px;
  overflow: hidden;
}

.widget-head {
  background: var(--deep);
  padding: 0.75rem 1.25rem;
  font-family: 'DM Mono', monospace;
  font-size: 0.62rem;
  color: rgba(255, 255, 255, 0.5);
  letter-spacing: 0.25em;
  text-transform: uppercase;
}

.widget-body {
  padding: 1.25rem;
}

/* サイドバーTOC */
.stoc {
  list-style: none;
  display: flex;
  flex-direction: column;
}

.stoc li a {
  display: block;
  padding: 0.5rem 0;
  color: var(--muted);
  text-decoration: none;
  font-size: 0.82rem;
  font-weight: 300;
  border-bottom: 1px solid var(--border);
  transition: color 0.2s, padding-left 0.2s;
}

.stoc li:last-child a {
  border-bottom: none;
}

.stoc li a:hover {
  color: var(--red);
  padding-left: 6px;
}

.stoc li a.active {
  color: var(--red);
  font-weight: 600;
  padding-left: 6px;
}

/* Slang card（サイドバー） */
.slang-card {
  text-align: center;
  padding: 1.5rem 1.25rem;
  background: var(--deep);
}

.slang-card .jp {
  font-family: 'Shippori Mincho', serif;
  font-size: 3rem;
  font-weight: 800;
  color: var(--white);
  display: block;
  line-height: 1;
  margin-bottom: 0.25rem;
}

.slang-card .romaji {
  font-family: 'DM Mono', monospace;
  font-size: 0.7rem;
  color: var(--gold);
  letter-spacing: 0.25em;
  display: block;
  margin-bottom: 0.75rem;
}

.slang-card p {
  font-size: 0.8rem;
  color: #888;
  font-weight: 300;
  line-height: 1.5;
  margin-bottom: 0.75rem;
}

.slang-card a {
  font-family: 'DM Mono', monospace;
  font-size: 0.65rem;
  color: var(--red);
  letter-spacing: 0.15em;
  text-transform: uppercase;
  text-decoration: none;
}

/* 人気記事リスト */
.pop-list {
  list-style: none;
  display: flex;
  flex-direction: column;
}

.pop-list li a {
  display: flex;
  gap: 10px;
  align-items: baseline;
  padding: 0.65rem 0;
  border-bottom: 1px solid var(--border);
  text-decoration: none;
  color: var(--ink);
  font-size: 0.84rem;
  font-weight: 300;
  transition: color 0.2s;
}

.pop-list li:last-child a {
  border-bottom: none;
}

.pop-list li a:hover {
  color: var(--red);
}

.pop-list li a .num {
  font-family: 'DM Mono', monospace;
  font-size: 0.65rem;
  color: var(--gold);
  flex-shrink: 0;
}

/* ============================================================
   9. NEWSLETTER
   ============================================================ */
.newsletter {
  background: var(--red-dark);
  padding: 4rem 5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
  flex-wrap: wrap;
}

.newsletter h2 {
  font-family: 'Shippori Mincho', serif;
  font-size: 1.6rem;
  font-weight: 800;
  color: var(--white);
  line-height: 1.2;
}

.newsletter p {
  font-size: 0.88rem;
  color: rgba(255, 255, 255, 0.65);
  margin-top: 0.5rem;
  font-weight: 300;
}

.newsletter-form {
  display: flex;
  flex-shrink: 0;
}

.newsletter-form input {
  padding: 13px 18px;
  font-size: 0.88rem;
  border: none;
  background: rgba(255, 255, 255, 0.12);
  color: var(--white);
  width: 280px;
  outline: none;
  font-family: 'DM Sans', sans-serif;
}

.newsletter-form input::placeholder {
  color: rgba(255, 255, 255, 0.4);
}

.newsletter-form button {
  background: var(--white);
  color: var(--red-dark);
  border: none;
  padding: 13px 22px;
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  cursor: pointer;
  font-family: 'DM Sans', sans-serif;
  transition: opacity 0.2s;
}

.newsletter-form button:hover {
  opacity: 0.85;
}


/* ============================================================
   10. FOOTER 
   ============================================================ */
footer {
  background: var(--deep);
  padding: 4rem 5rem 2rem;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: 3rem;
  margin-bottom: 3rem;
}

.footer-brand .logo {
  font-size: 1.3rem;
  margin-bottom: 1rem;
  display: block;
  text-decoration: none;
}

.footer-brand p {
  font-size: 0.82rem;
  color: #555;
  line-height: 1.7;
  font-weight: 300;
  max-width: 260px;
}

.footer-col h4 {
  font-family: 'DM Mono', monospace;
  font-size: 0.65rem;
  color: #555;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  margin-bottom: 1.2rem;
}

.footer-col a {
  display: block;
  color: #555;
  text-decoration: none;
  font-size: 0.85rem;
  line-height: 2;
  transition: color 0.2s;
  font-weight: 300;
}

.footer-col a:hover {
  color: var(--white);
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 2rem;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  gap: 1rem;
  flex-wrap: wrap;
}

.footer-bottom p {
  font-size: 0.75rem;
  color: #444;
  font-weight: 300;
}

.footer-social {
  display: flex;
  gap: 1.5rem;
}

.footer-social a {
  color: #555;
  text-decoration: none;
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  font-family: 'DM Mono', monospace;
  transition: color 0.2s;
}

.footer-social a:hover {
  color: var(--white);
}


/* ============================================================
   10. ANIMATIONS
   ============================================================ */
@keyframes fadeUp {
  from {
    opacity: 0;
    transform: translateY(16px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ============================================================
   11. RESPONSIVE
   ============================================================ */
@media (max-width: 960px) {
  header {
    padding: 0 1.5rem;
  }

  header nav {
    display: none;
  }

  .logo {
    flex-direction: column;
    align-items: flex-start;
    gap: 0;
    line-height: 1.1;
  }

  .logo span.jp {
    font-size: 0.62rem;
    letter-spacing: 0.1em;
  }

  .lang-switch {
    margin-left: 0;
  }

  .breadcrumb {
    padding: 0.75rem 1.5rem;
  }

  .newsletter {
    padding: 3rem 2rem;
  }

  .newsletter-form {
    flex-direction: column;
  }

  .newsletter-form input {
    width: 100%;
  }

  footer.footer-wide {
    padding: 3rem 2rem 2rem;
  }

  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }

  footer.footer-slim {
    padding: 2rem 1.5rem;
  }
}

@media (max-width: 900px) {
  .page-body {
    grid-template-columns: 1fr;
    padding: 2rem 1.5rem 4rem;
    gap: 3rem;
  }

  .sidebar {
    position: static;
  }

  .related-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 600px) {
  .footer-grid {
    grid-template-columns: 1fr;
  }

  .related-grid {
    grid-template-columns: 1fr;
  }
}