/* =============================================
   Site Header
   ============================================= */
.site-header {
  background: #ffffff;
  border-bottom: 1px solid var(--color-border);
  position: sticky;
  top: 0;
  z-index: 100;
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.site-header__logo {
  font-size: 1.375rem;
  font-weight: 700;
  color: var(--color-text);
  letter-spacing: -0.03em;
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 0.4em;
}

.site-header__logo img {
  max-height:64px;
}


.site-header__logo:hover {
  opacity: 0.9;
  text-decoration: none;
}

.site-nav__list {
  list-style: none;
  display: flex;
  gap: 2rem;
}

.site-nav__list a {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
  font-weight: 500;
  letter-spacing: 0.02em;
  transition: color var(--transition);
}

.site-nav__list a:hover {
  color: var(--color-primary-dark);
  text-decoration: none;
}

/* =============================================
   Hero (TOP page)
   ============================================= */
.hero {
  background: linear-gradient(160deg, #f0fdf4 0%, #ffffff 70%);
  border-bottom: 1px solid var(--color-border);
  padding: 5rem 0 4.5rem;
  position: relative;
  overflow: hidden;
}

.hero::after {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 50% 80% at 90% 40%, rgba(34, 197, 94, 0.1) 0%, transparent 70%);
  pointer-events: none;
}

.hero__inner {
  position: relative;
  z-index: 1;
  max-width: 680px;
}

.hero__eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.5em;
  font-size: var(--font-size-xs);
  font-weight: 700;
  color: var(--color-primary-dark);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin-bottom: 1.25rem;
}

.hero__eyebrow::before {
  content: '';
  display: inline-block;
  width: 20px;
  height: 2px;
  background: var(--color-primary);
}

.hero__title {
  font-size: clamp(1.875rem, 5vw, 3rem);
  font-weight: 700;
  color: var(--color-text);
  line-height: 1.3;
  letter-spacing: -0.02em;
  margin-bottom: 1.25rem;
}

.hero__desc {
  font-size: var(--font-size-md);
  color: var(--color-text-muted);
  line-height: 1.75;
}

/* =============================================
   Site Main
   ============================================= */
.site-main {
  padding: 3rem 0 5rem;
}

/* =============================================
   Section Header
   ============================================= */
.section-header {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  margin-bottom: 2rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--color-border);
}

.section-header__title {
  font-size: var(--font-size-lg);
  font-weight: 700;
  color: var(--color-text);
  display: flex;
  align-items: center;
  gap: 0.5em;
}

.section-header__title::before {
  content: '';
  display: inline-block;
  width: 4px;
  height: 1.1em;
  background: var(--color-primary);
  border-radius: 2px;
}

/* =============================================
   Article Grid (TOP)
   ============================================= */
.article-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.75rem;
}

@media (min-width: 640px) {
  .article-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .article-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* =============================================
   Article Card
   ============================================= */
.article-card {
  background: var(--color-surface);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
  border: 1px solid var(--color-border);
  transition: box-shadow var(--transition), transform var(--transition), border-color var(--transition);
}

.article-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-3px);
  border-color: transparent;
}

.article-card__link {
  display: flex;
  flex-direction: column;
  color: inherit;
  text-decoration: none;
  height: 100%;
}

.article-card__thumb {
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background: var(--color-bg);
  flex-shrink: 0;
}

.article-card__img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}

.article-card:hover .article-card__img {
  transform: scale(1.05);
}

.article-card__no-img {
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, #dcfce7 0%, #d1fae5 50%, #a7f3d0 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  color: #86efac;
}

.article-card__body {
  padding: 1.25rem 1.375rem 1.375rem;
  display: flex;
  flex-direction: column;
  gap: 0.625rem;
  flex: 1;
}

.article-card__badge {
  display: inline-block;
  font-size: 0.7rem;
  font-weight: 700;
  color: var(--color-primary);
  background: var(--color-primary-bg);
  padding: 0.25em 0.8em;
  border-radius: var(--radius-full);
  width: fit-content;
  letter-spacing: 0.03em;
}

.article-card__title {
  font-size: var(--font-size-sm);
  font-weight: 700;
  line-height: 1.6;
  color: var(--color-text);
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.article-card__excerpt {
  font-size: 0.8125rem;
  color: var(--color-text-muted);
  line-height: 1.65;
  flex: 1;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

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

.article-card__date {
  font-size: 0.7rem;
  color: var(--color-text-muted);
  letter-spacing: 0.04em;
}

.article-card__arrow {
  font-size: 0.75rem;
  color: var(--color-primary);
  font-weight: 700;
  opacity: 0;
  transform: translateX(-4px);
  transition: opacity var(--transition), transform var(--transition);
}

.article-card:hover .article-card__arrow {
  opacity: 1;
  transform: translateX(0);
}

/* =============================================
   Pagination
   ============================================= */
.pagination {
  margin-top: 3.5rem;
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 0.375rem;
  flex-wrap: wrap;
}

.pagination .page-numbers {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 2.5rem;
  height: 2.5rem;
  padding: 0 0.75rem;
  border-radius: var(--radius-sm);
  font-size: var(--font-size-sm);
  font-weight: 500;
  color: var(--color-text-muted);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  text-decoration: none;
  transition: background var(--transition), color var(--transition), border-color var(--transition);
}

.pagination .page-numbers:hover {
  background: var(--color-primary-bg);
  color: var(--color-primary);
  border-color: #86efac;
}

.pagination .page-numbers.current {
  background: var(--color-primary);
  color: #fff;
  border-color: var(--color-primary);
  pointer-events: none;
}

/* =============================================
   Breadcrumb
   ============================================= */
.breadcrumb {
  background: var(--color-bg);
  border-bottom: 1px solid var(--color-border);
  padding: 0.75rem 0;
  margin-bottom: 2.5rem;
}

.breadcrumb .container {
  /* use existing container */
}

.breadcrumb__list {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.8125rem;
  color: var(--color-text-muted);
}

.breadcrumb__item a {
  color: var(--color-text-muted);
  text-decoration: none;
  transition: color var(--transition);
}

.breadcrumb__item a:hover {
  color: var(--color-primary);
}

.breadcrumb__item--sep {
  color: var(--color-border);
  user-select: none;
}

.breadcrumb__item--current {
  color: var(--color-text);
  font-weight: 500;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  max-width: 360px;
}

/* =============================================
   Single Article
   ============================================= */
.single-article {
  max-width: 760px;
  margin: 0 auto;
}

.single-article__header {
  margin-bottom: 2rem;
}

.single-article__badge {
  display: inline-block;
  font-size: 0.7rem;
  font-weight: 700;
  color: var(--color-primary);
  background: var(--color-primary-bg);
  padding: 0.3em 0.9em;
  border-radius: var(--radius-full);
  margin-bottom: 1rem;
  text-decoration: none;
  transition: background var(--transition), color var(--transition);
}

.single-article__badge:hover {
  background: var(--color-primary);
  color: #fff;
}

.single-article__title {
  font-size: clamp(1.5rem, 3.5vw, 2.125rem);
  font-weight: 700;
  line-height: 1.45;
  letter-spacing: -0.02em;
  color: var(--color-text);
  margin-bottom: 1.25rem;
}

.single-article__meta {
  display: flex;
  align-items: center;
  gap: 1rem;
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
  padding-bottom: 1.5rem;
  border-bottom: 1px solid var(--color-border);
}

.single-article__meta time::before {
  content: '📅 ';
  font-style: normal;
}

.single-article__eyecatch {
  margin-bottom: 2.5rem;
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-md);
}

.single-article__eyecatch img {
  width: 100%;
  height: auto;
}

/* 記事本文 */
.single-article__body {
  font-size: var(--font-size-md);
  line-height: 2;
  color: var(--color-text);
}

.single-article__body h2 {
  font-size: 1.375rem;
  font-weight: 700;
  margin: 3rem 0 1.25rem;
  padding: 0.75rem 1rem;
  background: var(--color-primary-bg);
  border-left: 4px solid var(--color-primary);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  color: var(--color-text);
}

.single-article__body h3 {
  font-size: var(--font-size-lg);
  font-weight: 700;
  margin: 2.5rem 0 1rem;
  padding-bottom: 0.5rem;
  border-bottom: 2px solid var(--color-border);
  color: var(--color-text);
}

.single-article__body h4 {
  font-size: var(--font-size-md);
  font-weight: 700;
  margin: 2rem 0 0.75rem;
}

.single-article__body p {
  margin-bottom: 1.75rem;
}

.single-article__body ul,
.single-article__body ol {
  margin-bottom: 1.75rem;
  padding-left: 1.75rem;
}

.single-article__body li {
  margin-bottom: 0.625rem;
  line-height: 1.8;
}

.single-article__body blockquote {
  margin: 2rem 0;
  padding: 1.25rem 1.5rem;
  background: var(--color-bg);
  border-left: 4px solid var(--color-primary);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  color: var(--color-text-muted);
  font-style: italic;
}

.single-article__body img {
  border-radius: var(--radius-md);
  margin: 2rem auto;
  box-shadow: var(--shadow-md);
}

.single-article__body a {
  color: var(--color-primary);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.single-article__body a:hover {
  color: var(--color-primary-dark);
}

.single-article__body strong {
  font-weight: 700;
  color: var(--color-text);
}

/* =============================================
   Site Footer
   ============================================= */
.site-footer {
  background: #ffffff;
  border-top: 1px solid var(--color-border);
  color: var(--color-text-muted);
  padding: 3rem 0;
  margin-top: 5rem;
}

.site-footer__inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
}

.site-footer__logo {
  font-size: var(--font-size-lg);
  font-weight: 700;
  color: var(--color-text);
  letter-spacing: -0.02em;
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 0.4em;
}
.site-footer__logo img {
  max-height: 64px;
}

.site-footer__copy {
  font-size: var(--font-size-xs);
  letter-spacing: 0.04em;
}

/* =============================================
   No Posts
   ============================================= */
.no-posts {
  text-align: center;
  color: var(--color-text-muted);
  padding: 5rem 0;
  font-size: var(--font-size-lg);
}

/* =============================================
   Page Title (非TOPアーカイブ用)
   ============================================= */
.page-title {
  font-size: var(--font-size-xl);
  font-weight: 700;
  margin-bottom: 2rem;
}

/* =============================================
   記事装飾スタイル（クラシックエディター）
   ============================================= */

/* 黄色マーカー */
.single-article__body mark.marker-yellow {
  background: linear-gradient(transparent 55%, #fef08a 55%);
  padding: 0 0.15em;
  color: inherit;
  font-style: normal;
}

/* 赤文字 */
.single-article__body span.text-red {
  color: #dc2626;
  font-weight: 700;
}

/* ボックス */
.single-article__body p.info-box {
  background: var(--color-primary-bg);
  border: 1px solid #86efac;
  border-left: 4px solid var(--color-primary);
  border-radius: var(--radius-md);
  padding: 1.25rem 1.5rem;
  margin-bottom: 1.75rem;
}

/* 口コミコメント */
.single-article__body blockquote.review-comment {
  background: #fffbeb;
  border-left: none;
  border: 1px solid #fcd34d;
  border-radius: var(--radius-md);
  padding: 1.25rem 1.5rem 1.25rem 3.5rem;
  font-style: normal;
  color: var(--color-text);
  position: relative;
}

.single-article__body blockquote.review-comment::before {
  content: '\201C';
  position: absolute;
  left: 1rem;
  top: 0.4rem;
  font-size: 2.75rem;
  color: #fbbf24;
  line-height: 1;
  font-family: Georgia, serif;
}

/* CTAボタン */
.single-article__body .cta-wrap {
  text-align: center;
  margin: 2.5rem 0;
}

.single-article__body a.cta-button {
  display: inline-block;
  background: var(--color-primary);
  color: #ffffff !important;
  font-size: var(--font-size-lg);
  font-weight: 700;
  padding: 1rem 3rem;
  border-radius: var(--radius-full);
  letter-spacing: 0.05em;
  box-shadow: 0 4px 16px rgba(34, 197, 94, 0.35);
  transition: background var(--transition), box-shadow var(--transition), transform var(--transition);
  text-decoration: none !important;
}

.single-article__body a.cta-button:hover {
  background: var(--color-primary-dark);
  box-shadow: 0 6px 20px rgba(34, 197, 94, 0.45);
  transform: translateY(-2px);
}

/* チェックリスト */
.single-article__body ul.check-list {
  padding-left: 0;
  list-style: none;
}

.single-article__body ul.check-list li {
  padding-left: 1.75rem;
  position: relative;
}

.single-article__body ul.check-list li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--color-primary);
  font-weight: 700;
}