/* ============================================
   カラダ365だから — Style Sheet
   ============================================ */

/* --- CSS Variables --- */
:root {
  --white:       #FFFFFF;
  --bg-sub:      #F4F7F4;
  --green:       #7A9E7E;
  --green-deep:  #4A7C6F;
  --green-pale:  #c8dcc9;
  --text:        #1a1a1a;
  --text-light:  #555;
  --border:      #e2ebe2;

  --font-serif:  'Noto Serif JP', serif;
  --font-sans:   'Noto Sans JP', sans-serif;
  --font-en:     'Cormorant Garamond', serif;

  --max-width:   720px;
  --spacing-xl:  5rem;
  --spacing-lg:  3rem;
  --spacing-md:  2rem;
  --spacing-sm:  1rem;
}

/* --- Reset & Base --- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { font-size: 16px; scroll-behavior: smooth; }

body {
  font-family: var(--font-sans);
  color: var(--text);
  background: var(--white);
  line-height: 1.9;
  font-weight: 400;
  font-size: 17px;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }

/* --- Fade-in on scroll --- */
.fade-in {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}
.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ============================================
   HEADER
   ============================================ */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  background: rgba(255,255,255,0.92);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
  padding: 0 var(--spacing-md);
}

.header-inner {
  max-width: 1100px;
  margin: 0 auto;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

/* サイトロゴ */
.site-logo {
  display: flex;
  flex-direction: column;
  line-height: 1;
}
.site-logo .name-ja {
  font-family: var(--font-serif);
  font-size: 1.05rem;
  font-weight: 400;
  letter-spacing: 0.08em;
  color: var(--text);
}
.site-logo .name-ja .num365 {
  font-family: var(--font-en);
  font-size: 1.2rem;
  color: var(--green-deep);
  font-style: italic;
}
.site-logo .name-en {
  font-family: var(--font-en);
  font-size: 0.7rem;
  letter-spacing: 0.22em;
  color: var(--text-light);
  margin-top: 2px;
  font-weight: 300;
}

/* ナビ */
.site-nav {
  display: flex;
  gap: var(--spacing-lg);
  list-style: none;
}
.site-nav a {
  font-family: var(--font-sans);
  font-size: 0.78rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  color: var(--text);
  transition: color 0.2s;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
}
.site-nav a .nav-en {
  font-family: var(--font-en);
  font-size: 0.78rem;
  font-style: italic;
  color: var(--green);
  letter-spacing: 0.08em;
}
.site-nav a:hover { color: var(--text); }
.site-nav a:hover .nav-en { color: var(--green-deep); }

/* ============================================
   HERO
   ============================================ */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 100px var(--spacing-md) var(--spacing-xl);
  position: relative;
  overflow: hidden;
}

/* 背景画像 */
.hero-bg {
  position: absolute;
  inset: 0;
  background: url('../images/hero.png') center/cover no-repeat;
  opacity: 0.30;
  z-index: 0;
}
.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(to bottom, rgba(255,255,255,0.3) 0%, rgba(255,255,255,0.85) 100%);
  z-index: 0;
  pointer-events: none;
}

.hero-inner {
  text-align: center;
  max-width: 640px;
  position: relative;
  z-index: 1;
}

.hero-label {
  font-family: var(--font-en);
  font-size: 0.78rem;
  letter-spacing: 0.28em;
  color: var(--green);
  margin-bottom: var(--spacing-md);
  display: block;
}

.hero-title {
  font-family: var(--font-serif);
  font-size: clamp(2.2rem, 6vw, 3.4rem);
  font-weight: 400;
  letter-spacing: 0.06em;
  line-height: 1.4;
  color: var(--text);
  margin-bottom: var(--spacing-md);
}

.hero-title .num {
  font-family: var(--font-en);
  font-size: 1.15em;
  font-style: italic;
  color: var(--green-deep);
  display: inline-block;
  position: relative;
}
.hero-title .num::after {
  content: '';
  position: absolute;
  bottom: 4px;
  left: 0; right: 0;
  height: 2px;
  background: var(--green-pale);
  border-radius: 2px;
}

.hero-tagline {
  font-family: var(--font-serif);
  font-size: 1.25rem;
  font-weight: 300;
  color: var(--text-light);
  letter-spacing: 0.1em;
  line-height: 2;
  margin-bottom: var(--spacing-xl);
}

.hero-scroll {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  color: var(--green);
}
.hero-scroll span {
  font-family: var(--font-en);
  font-size: 0.85rem;
  letter-spacing: 0.32em;
  color: var(--green);
  font-weight: 400;
}
.hero-scroll .scroll-line {
  width: 2px;
  height: 72px;
  background: linear-gradient(to bottom, var(--green), transparent);
  animation: scrollDown 2s ease-in-out infinite;
}
@keyframes scrollDown {
  0%   { transform: scaleY(0); transform-origin: top; opacity: 0; }
  40%  { transform: scaleY(1); transform-origin: top; opacity: 1; }
  60%  { transform: scaleY(1); transform-origin: bottom; opacity: 1; }
  100% { transform: scaleY(0); transform-origin: bottom; opacity: 0; }
}

/* ============================================
   CATEGORIES SECTION
   ============================================ */
.categories-section {
  background: var(--bg-sub);
  padding: var(--spacing-xl) var(--spacing-md);
}

.section-header {
  text-align: center;
  margin-bottom: var(--spacing-lg);
}
.section-label {
  font-family: var(--font-en);
  font-size: 0.72rem;
  letter-spacing: 0.28em;
  color: var(--green);
  display: block;
  margin-bottom: 8px;
}
.section-title {
  font-family: var(--font-serif);
  font-size: 1.4rem;
  font-weight: 400;
  letter-spacing: 0.1em;
  color: var(--text);
}

.categories-grid {
  max-width: 960px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
}

.category-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: var(--spacing-md) var(--spacing-sm);
  text-align: center;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  cursor: pointer;
  display: block;
}
.category-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 32px rgba(74,124,111,0.12);
}

.cat-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}
.category-card:hover .cat-image { transform: scale(1.06); }
.cat-image-wrap {
  width: 120px;
  height: 120px;
  border-radius: 50%;
  overflow: hidden;
  margin: 0 auto 16px;
  border: 3px solid var(--border);
  transition: border-color 0.3s;
}
.category-card:hover .cat-image-wrap {
  border-color: var(--green);
}

.cat-en {
  font-family: var(--font-en);
  font-size: 0.75rem;
  letter-spacing: 0.2em;
  color: var(--green);
  font-style: italic;
  display: block;
  margin-bottom: 6px;
}
.cat-ja {
  font-family: var(--font-serif);
  font-size: 0.9rem;
  font-weight: 400;
  color: var(--text);
  letter-spacing: 0.08em;
}
.cat-desc {
  font-size: 0.72rem;
  color: var(--text-light);
  margin-top: 8px;
  line-height: 1.6;
}

/* ============================================
   LATEST ARTICLES
   ============================================ */
.articles-section {
  padding: var(--spacing-xl) var(--spacing-md);
  max-width: var(--max-width);
  margin: 0 auto;
}

.article-list {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.article-item {
  display: grid;
  grid-template-columns: 100px 60px 1fr;
  gap: var(--spacing-sm) var(--spacing-md);
  padding: var(--spacing-md) 0;
  border-bottom: 1px solid var(--border);
  transition: opacity 0.2s;
  align-items: start;
}

.article-thumb {
  width: 100px;
  height: 100px;
  object-fit: cover;
  border-radius: 4px;
  filter: saturate(0.85);
}
.article-no-thumb {
  width: 100px;
  height: 100px;
  background: var(--bg-sub);
  border-radius: 4px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-en);
  font-size: 2rem;
  color: var(--green-pale);
  font-style: italic;
}
.article-item:hover { opacity: 0.75; }
.article-item:first-child { border-top: 1px solid var(--border); }

.article-meta {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 6px;
  padding-top: 2px;
}
.article-cat-initial {
  font-family: var(--font-en);
  font-size: 1.8rem;
  color: var(--green-pale);
  line-height: 1;
  font-weight: 300;
}
.article-date {
  font-size: 0.68rem;
  color: var(--text-light);
  letter-spacing: 0.06em;
}

.article-body {}
.article-cat-label {
  font-family: var(--font-en);
  font-size: 0.68rem;
  letter-spacing: 0.2em;
  color: var(--green);
  font-style: italic;
  display: block;
  margin-bottom: 4px;
}
.article-title {
  font-family: var(--font-serif);
  font-size: 1.15rem;
  font-weight: 500;
  line-height: 1.65;
  letter-spacing: 0.05em;
  color: var(--text);
  margin-bottom: 8px;
}
.article-excerpt {
  font-size: 0.88rem;
  color: var(--text-light);
  line-height: 1.8;
}

/* MORE ARTICLES NAVIGATION */
.more-articles {
  margin-top: var(--spacing-lg);
  padding-top: var(--spacing-md);
  text-align: center;
}
.more-articles-label {
  font-family: var(--font-en);
  font-size: 0.65rem;
  letter-spacing: 0.28em;
  color: var(--green);
  font-style: italic;
  margin-bottom: 6px;
}
.more-articles-text {
  font-family: var(--font-serif);
  font-size: 1rem;
  color: var(--text);
  letter-spacing: 0.08em;
  margin-bottom: var(--spacing-md);
}
.more-articles-cats {
  display: flex;
  justify-content: center;
  gap: 12px;
  flex-wrap: wrap;
}
.more-cat-link {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 6px;
  flex: 0 0 130px;
  width: 130px;
  padding: 18px 0;
  border: none;
  border-radius: 4px;
  color: #fff;
  transition: opacity 0.2s, transform 0.2s;
}
.more-cat-link::before,
.more-cat-link::after { display: none; }
.more-cat-link:hover {
  opacity: 0.85;
  transform: translateY(-2px);
}
/* override eyecatch-v/i/s/e backgrounds with solid gradients for buttons */
.more-cat-link.eyecatch-v { background: linear-gradient(135deg, #7A9E7E 0%, #507854 100%); }
.more-cat-link.eyecatch-i { background: linear-gradient(135deg, #4A8C7E 0%, #306A5E 100%); }
.more-cat-link.eyecatch-s { background: linear-gradient(135deg, #6B8C5E 0%, #486640 100%); }
.more-cat-link.eyecatch-e { background: linear-gradient(135deg, #3d6b5f 0%, #284E44 100%); }
.more-cat-initial {
  font-family: var(--font-en);
  font-size: 1.05rem;
  font-weight: 300;
  font-style: italic;
  color: #fff;
  line-height: 1;
  letter-spacing: 0.04em;
}
.more-cat-name {
  font-family: var(--font-serif);
  font-size: 0.72rem;
  color: #fff;
  letter-spacing: 0.04em;
  white-space: nowrap;
}

/* ============================================
   PHILOSOPHY SECTION
   ============================================ */
.philosophy-section {
  background: var(--green-deep);
  padding: var(--spacing-xl) var(--spacing-md);
  text-align: center;
  position: relative;
  overflow: hidden;
}
.philosophy-section::before {
  content: '365';
  font-family: var(--font-en);
  font-size: clamp(8rem, 20vw, 16rem);
  color: rgba(255,255,255,0.04);
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  pointer-events: none;
  font-style: italic;
  font-weight: 300;
  white-space: nowrap;
}

.philosophy-inner {
  max-width: 560px;
  margin: 0 auto;
  position: relative;
  z-index: 1;
}
.philosophy-label {
  font-family: var(--font-en);
  font-size: 0.72rem;
  letter-spacing: 0.28em;
  color: rgba(255,255,255,0.5);
  display: block;
  margin-bottom: var(--spacing-sm);
}
.philosophy-text {
  font-family: var(--font-serif);
  font-size: clamp(1.2rem, 3vw, 1.7rem);
  color: var(--white);
  font-weight: 300;
  letter-spacing: 0.1em;
  line-height: 2;
}
.philosophy-sub {
  font-size: 0.8rem;
  color: rgba(255,255,255,0.55);
  margin-top: var(--spacing-md);
  letter-spacing: 0.08em;
  line-height: 1.9;
}

/* ============================================
   CATEGORY PAGE
   ============================================ */
.category-hero {
  padding: 120px var(--spacing-md) var(--spacing-lg);
  background: var(--bg-sub);
  text-align: center;
}
.category-hero-initial {
  font-family: var(--font-en);
  font-size: 5rem;
  font-weight: 300;
  font-style: italic;
  color: var(--green-pale);
  line-height: 1;
  margin-bottom: 8px;
}
.category-hero-en {
  font-family: var(--font-en);
  font-size: 0.82rem;
  font-style: italic;
  letter-spacing: 0.25em;
  color: var(--green);
  display: block;
  margin-bottom: 8px;
}
.category-hero-ja {
  font-family: var(--font-serif);
  font-size: 1.8rem;
  font-weight: 400;
  letter-spacing: 0.1em;
  color: var(--text);
  display: block;
  margin-bottom: 12px;
}
.category-hero-desc {
  font-size: 0.9rem;
  color: var(--text-light);
  letter-spacing: 0.06em;
  line-height: 1.9;
}

.category-articles {
  max-width: 960px;
  margin: 0 auto;
  padding: var(--spacing-xl) var(--spacing-md);
}
.category-count {
  font-size: 0.78rem;
  color: var(--text-light);
  letter-spacing: 0.08em;
  margin-bottom: var(--spacing-md);
  padding-bottom: var(--spacing-sm);
  border-bottom: 1px solid var(--border);
}
.category-count strong {
  color: var(--green-deep);
  font-weight: 500;
}

.articles-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
}
.article-card {
  display: block;
  border: 1px solid var(--border);
  border-radius: 6px;
  overflow: hidden;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  background: var(--white);
}
.article-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 16px 40px rgba(74,124,111,0.12);
}
.article-card-img {
  width: 100%;
  aspect-ratio: 16/9;
  object-fit: cover;
  filter: saturate(0.88);
  display: block;
  transition: transform 0.4s ease;
}
.article-card:hover .article-card-img { transform: scale(1.03); }
.article-card-img-wrap { overflow: hidden; }

.article-card-body {
  padding: var(--spacing-sm) var(--spacing-md) var(--spacing-md);
}
.article-card-meta {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 10px;
}
.article-card-badge {
  font-family: var(--font-en);
  font-size: 0.65rem;
  font-style: italic;
  color: var(--white);
  background: var(--green);
  padding: 2px 8px;
  border-radius: 2px;
  letter-spacing: 0.12em;
}
.article-card-date {
  font-size: 0.72rem;
  color: var(--text-light);
  letter-spacing: 0.06em;
}
.article-card-title {
  font-family: var(--font-serif);
  font-size: 1.05rem;
  font-weight: 500;
  line-height: 1.6;
  letter-spacing: 0.04em;
  color: var(--text);
  margin-bottom: 8px;
}
.article-card-excerpt {
  font-size: 0.82rem;
  color: var(--text-light);
  line-height: 1.75;
}
.article-card-more {
  display: inline-block;
  margin-top: 12px;
  font-family: var(--font-en);
  font-size: 0.72rem;
  font-style: italic;
  letter-spacing: 0.15em;
  color: var(--green);
}

@media (max-width: 640px) {
  .articles-grid { grid-template-columns: 1fr; }
  .category-hero-initial { font-size: 3.5rem; }
}

/* ============================================
   ARTICLE PAGE
   ============================================ */
.breadcrumb {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 100px var(--spacing-md) 0;
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.75rem;
  color: var(--text-light);
}
.breadcrumb a { color: var(--green); transition: opacity 0.2s; }
.breadcrumb a:hover { opacity: 0.7; }
.breadcrumb span { color: var(--text-light); }

.article-page {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: var(--spacing-md) var(--spacing-md) var(--spacing-xl);
}

.article-page-header {
  padding: var(--spacing-lg) 0 var(--spacing-md);
  border-bottom: 1px solid var(--border);
  margin-bottom: var(--spacing-lg);
}
.article-page-cat {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: var(--spacing-sm);
}
.article-page-cat .cat-badge {
  font-family: var(--font-en);
  font-size: 0.72rem;
  letter-spacing: 0.2em;
  color: var(--white);
  background: var(--green);
  padding: 3px 10px;
  border-radius: 2px;
  font-style: italic;
}
.article-page-cat .cat-name {
  font-size: 0.8rem;
  color: var(--text-light);
}
.article-page-date {
  font-size: 0.75rem;
  color: var(--text-light);
  letter-spacing: 0.08em;
  margin-bottom: 12px;
  display: block;
}
.article-page-title {
  font-family: var(--font-serif);
  font-size: clamp(1.4rem, 4vw, 1.9rem);
  font-weight: 500;
  line-height: 1.6;
  letter-spacing: 0.05em;
  color: var(--text);
}

.article-hero-img {
  width: 100%;
  aspect-ratio: 16/9;
  object-fit: cover;
  border-radius: 4px;
  margin-bottom: var(--spacing-lg);
  filter: saturate(0.9);
  display: block;
}

/* ---- Default eyecatch (CSS-generated, category colour) ---- */
.eyecatch-default {
  position: relative;
  overflow: hidden;
}
/* large italic initial — watermark */
.eyecatch-default::before {
  content: attr(data-cat);
  font-family: var(--font-en);
  font-size: clamp(4rem, 16vw, 10rem);
  font-weight: 300;
  font-style: italic;
  color: rgba(255,255,255,0.12);
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -48%);
  line-height: 1;
  pointer-events: none;
  white-space: nowrap;
  user-select: none;
}
/* "karada365.com" bottom-right watermark */
.eyecatch-default::after {
  content: 'karada365.com';
  font-family: var(--font-en);
  font-size: 0.65rem;
  font-style: italic;
  letter-spacing: 0.22em;
  color: rgba(255,255,255,0.32);
  position: absolute;
  bottom: 12px;
  right: 16px;
  pointer-events: none;
  user-select: none;
}
/* category colour variants — gradient over hero.png texture */
.eyecatch-v {
  background:
    linear-gradient(135deg, rgba(122,158,126,0.90) 0%, rgba(80,120,84,0.92) 100%),
    url('../images/hero.png') center / cover no-repeat;
}
.eyecatch-i {
  background:
    linear-gradient(135deg, rgba(74,140,126,0.90) 0%, rgba(48,106,94,0.92) 100%),
    url('../images/hero.png') center / cover no-repeat;
}
.eyecatch-s {
  background:
    linear-gradient(135deg, rgba(107,140,94,0.90) 0%, rgba(72,102,64,0.92) 100%),
    url('../images/hero.png') center / cover no-repeat;
}
.eyecatch-e {
  background:
    linear-gradient(135deg, rgba(61,107,95,0.90) 0%, rgba(40,78,68,0.92) 100%),
    url('../images/hero.png') center / cover no-repeat;
}

/* article hero — div version */
.article-hero-img.eyecatch-default {
  min-height: 200px;
}

/* card thumbnail — div version */
.article-card-img.eyecatch-default {
  width: 100%;
  aspect-ratio: 16/9;
  filter: none;
  transition: transform 0.4s ease;
}
.article-card:hover .article-card-img.eyecatch-default {
  transform: scale(1.03);
}

/* homepage list thumbnail — div version */
.article-thumb.eyecatch-default {
  width: 100px;
  height: 100px;
  border-radius: 4px;
  flex-shrink: 0;
}
.article-thumb.eyecatch-default::before {
  font-size: 2.4rem;
}
.article-thumb.eyecatch-default::after {
  display: none;
}

.article-content {
  font-size: 1rem;
  line-height: 2;
  color: var(--text);
}
.article-content p {
  margin-bottom: 1.6em;
}
.article-content h2 {
  font-family: var(--font-serif);
  font-size: 1.2rem;
  font-weight: 500;
  letter-spacing: 0.06em;
  color: var(--text);
  margin: 2.4em 0 0.8em;
  padding-left: 12px;
  border-left: 3px solid var(--green);
}
.article-content h3 {
  font-family: var(--font-serif);
  font-size: 1.05rem;
  font-weight: 500;
  color: var(--text);
  margin: 2em 0 0.6em;
}
.article-content ul, .article-content ol {
  padding-left: 1.4em;
  margin-bottom: 1.6em;
}
.article-content li { margin-bottom: 0.4em; }
.article-content strong { font-weight: 500; color: var(--green-deep); }
.article-content blockquote {
  border-left: 3px solid var(--green-pale);
  padding: var(--spacing-sm) var(--spacing-md);
  background: var(--bg-sub);
  border-radius: 0 4px 4px 0;
  margin: 1.6em 0;
  font-style: italic;
  color: var(--text-light);
}

.article-footer {
  margin-top: var(--spacing-xl);
  padding-top: var(--spacing-lg);
  border-top: 1px solid var(--border);
}
.back-to-list {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.85rem;
  color: var(--green);
  letter-spacing: 0.06em;
  transition: gap 0.2s;
}
.back-to-list:hover { gap: 14px; }

.related-articles {
  margin-top: var(--spacing-lg);
}
.related-title {
  font-family: var(--font-serif);
  font-size: 0.9rem;
  color: var(--text-light);
  letter-spacing: 0.1em;
  margin-bottom: var(--spacing-md);
  display: flex;
  align-items: center;
  gap: 12px;
}
.related-title::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--border);
}
.related-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
}
.related-card {
  display: block;
  border: 1px solid var(--border);
  border-radius: 4px;
  overflow: hidden;
  transition: transform 0.2s, box-shadow 0.2s;
}
.related-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 24px rgba(74,124,111,0.10);
}
.related-card img,
.related-card .eyecatch-default {
  width: 100%;
  aspect-ratio: 4/3;
  object-fit: cover;
  filter: saturate(0.85);
  display: block;
}
.related-card-body {
  padding: 10px 12px;
}
.related-card-cat {
  font-family: var(--font-en);
  font-size: 0.65rem;
  font-style: italic;
  color: var(--green);
  letter-spacing: 0.15em;
}
.related-card-title {
  font-family: var(--font-serif);
  font-size: 0.82rem;
  color: var(--text);
  line-height: 1.5;
  margin-top: 4px;
}

@media (max-width: 600px) {
  .related-grid { grid-template-columns: 1fr 1fr; }
  .related-grid .related-card:last-child { display: none; }
}

/* ============================================
   ABOUT PAGE
   ============================================ */
.about-hero-img {
  object-fit: cover;
  filter: saturate(0.7) brightness(0.92);
}
.about-sign {
  font-family: var(--font-en);
  font-style: italic;
  font-size: 1rem;
  letter-spacing: 0.18em;
  color: var(--green);
  text-align: right;
  margin-top: 3rem !important;
  padding-top: 2rem;
  border-top: 1px solid var(--border);
}

/* ============================================
   FOOTER
   ============================================ */
.site-footer {
  padding: var(--spacing-lg) var(--spacing-md);
  text-align: center;
  border-top: 1px solid var(--border);
}
.footer-logo {
  font-family: var(--font-en);
  font-size: 1.3rem;
  letter-spacing: 0.3em;
  color: var(--green);
  font-style: italic;
  margin-bottom: var(--spacing-sm);
}
.footer-copy {
  font-size: 0.72rem;
  color: var(--text-light);
  letter-spacing: 0.08em;
}

/* ============================================
   RESPONSIVE
   ============================================ */
/* ============================================
   HAMBURGER MENU
   ============================================ */
.hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 6px;
  width: 44px;
  height: 44px;
  cursor: pointer;
  background: var(--bg-sub);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 0;
  z-index: 200;
  flex-shrink: 0;
}
.hamburger span {
  display: block;
  width: 20px;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: transform 0.3s ease, opacity 0.3s ease;
  transform-origin: center;
}
.hamburger.open span:nth-child(1) { transform: translateY(8px) rotate(45deg); }
.hamburger.open span:nth-child(2) { opacity: 0; }
.hamburger.open span:nth-child(3) { transform: translateY(-8px) rotate(-45deg); }

/* モバイルメニュー */
.mobile-nav {
  display: none;
  position: fixed;
  top: 64px;
  left: 0; right: 0;
  background: #fff;
  z-index: 150;
  flex-direction: column;
  border-top: 2px solid var(--green);
  box-shadow: 0 8px 32px rgba(0,0,0,0.10);
  transform: translateY(-10px);
  opacity: 0;
  transition: opacity 0.25s ease, transform 0.25s ease;
  pointer-events: none;
}
.mobile-nav.open {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}
.mobile-nav a {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 18px 24px;
  border-bottom: 1px solid var(--border);
  text-decoration: none;
  transition: background 0.15s;
}
.mobile-nav a:active { background: var(--bg-sub); }

.mnav-initial {
  font-family: var(--font-en);
  font-size: 1.8rem;
  font-style: italic;
  color: var(--green-pale);
  font-weight: 300;
  line-height: 1;
  width: 36px;
  flex-shrink: 0;
}
.mnav-text {
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.mnav-en {
  font-family: var(--font-en);
  font-size: 0.72rem;
  font-style: italic;
  color: var(--green);
  letter-spacing: 0.15em;
}
.mnav-ja {
  font-family: var(--font-serif);
  font-size: 1rem;
  font-weight: 400;
  color: var(--text);
  letter-spacing: 0.06em;
}

@media (max-width: 768px) {
  .site-nav { display: none; }
  .hamburger { display: flex; }
  .mobile-nav { display: flex; }
  .categories-grid { grid-template-columns: repeat(2, 1fr); }
  .hero-title { font-size: 2rem; }
  .article-item { grid-template-columns: 72px 48px 1fr; }
  .article-thumb, .article-no-thumb { width: 72px; height: 72px; }
}
@media (max-width: 480px) {
  .categories-grid { grid-template-columns: 1fr 1fr; gap: 1rem; }
  .article-item { grid-template-columns: 56px 1fr; }
}