/* ===================================================================
 * GoodFor Blog - Stylesheet
 * 既存テーマ（goodfor-theme）のフォント・カラーに準拠
 * Brand: #005133 (Primary green) / #1DA867 (Accent)
 * Font:  "Noto Sans JP", "Hiragino Kaku Gothic ProN", "Yu Gothic", sans-serif
 * =================================================================== */

/* ----- CSS Variables (既存テーマのCSS変数を補完) ----- */
:root {
  --gfb-color-primary: #005133;
  --gfb-color-primary-soft: #E8F1EC;
  --gfb-color-accent: #1DA867;
  --gfb-color-accent-orange: #F18200;
  --gfb-color-text: #1A1A1A;
  --gfb-color-text-light: #666;
  --gfb-color-text-muted: #888;
  --gfb-color-border: #EFEFEF;
  --gfb-color-border-soft: #F5F5F5;
  --gfb-color-bg-soft: #FAFAF7;
  --gfb-color-bg-section: #F7F9F7;
  --gfb-color-white: #FFFFFF;

  --gfb-font: "Noto Sans JP", "Hiragino Kaku Gothic ProN", "Yu Gothic", sans-serif;
  --gfb-radius: 10px;
  --gfb-radius-sm: 6px;
  --gfb-radius-lg: 14px;
}

/* ----- Container override (テーマの container と整合させる) ----- */
.blog-archive .container,
.blog-single .container,
.blog-related .container {
  max-width: 1120px;
  margin: 0 auto;
  padding-left: 24px;
  padding-right: 24px;
  box-sizing: border-box;
}

.container--narrow {
  max-width: 760px !important;
}

/* ===================================================================
   1. CATEGORY BAR (チップ)
   =================================================================== */
.blog-cat-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
  margin: 8px 0 40px;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--gfb-color-border);
}

.blog-cat-bar__label {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--gfb-color-text-muted);
  margin-right: 4px;
}

.blog-chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 16px;
  background: var(--gfb-color-border-soft);
  color: var(--gfb-color-text);
  border-radius: 999px;
  font-size: 13px;
  font-weight: 500;
  text-decoration: none;
  border: 1px solid transparent;
  transition: all 0.2s ease;
}

.blog-chip:hover {
  background: var(--gfb-color-primary-soft);
  color: var(--gfb-color-primary);
}

.blog-chip.is-active {
  background: var(--gfb-color-primary);
  color: var(--gfb-color-white);
}

.blog-chip__count {
  opacity: 0.65;
  font-size: 11px;
  font-weight: 400;
}

/* カテゴリ説明 */
.blog-cat-desc {
  font-size: 15px;
  line-height: 1.9;
  color: var(--gfb-color-text-light);
  max-width: 720px;
  margin: 0 0 32px;
  padding: 20px 24px;
  background: var(--gfb-color-bg-soft);
  border-left: 3px solid var(--gfb-color-primary);
  border-radius: 0 var(--gfb-radius-sm) var(--gfb-radius-sm) 0;
}

/* ===================================================================
   2. CARD GRID
   =================================================================== */
.blog-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 40px 28px;
  margin-bottom: 56px;
}

.blog-card {
  display: block;
}

.blog-card__link {
  display: block;
  text-decoration: none;
  color: inherit;
  transition: transform 0.2s ease;
}

.blog-card__link:hover {
  transform: translateY(-3px);
}

.blog-card__thumb {
  aspect-ratio: 16 / 10;
  border-radius: var(--gfb-radius);
  margin-bottom: 16px;
  background-color: #DDD;
  position: relative;
  overflow: hidden;
}

.blog-card__thumb::after {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 30% 20%, rgba(255, 255, 255, 0.15), transparent 60%);
  pointer-events: none;
}

.blog-card__body {
  padding: 0 4px;
}

.blog-card__meta {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 11px;
  color: var(--gfb-color-text-muted);
  margin-bottom: 10px;
}

.blog-card__date {
  font-feature-settings: "tnum" on;
}

.blog-card__title {
  font-size: 17px;
  font-weight: 700;
  line-height: 1.55;
  margin: 0 0 10px;
  color: var(--gfb-color-text);
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.blog-card__link:hover .blog-card__title {
  color: var(--gfb-color-primary);
}

.blog-card__excerpt {
  font-size: 13px;
  line-height: 1.75;
  color: var(--gfb-color-text-light);
  margin: 0;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.blog-tag {
  display: inline-block;
  padding: 3px 10px;
  background: var(--gfb-color-primary-soft);
  color: var(--gfb-color-primary);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.02em;
  border-radius: 4px;
  text-decoration: none;
  line-height: 1.5;
}

.blog-tag:hover {
  background: var(--gfb-color-primary);
  color: var(--gfb-color-white);
}

.blog-empty {
  padding: 48px 0;
  text-align: center;
  color: var(--gfb-color-text-muted);
  font-size: 14px;
}

/* ===================================================================
   3. SINGLE ARTICLE
   =================================================================== */
.blog-single {
  font-family: var(--gfb-font);
}

.blog-single__header {
  padding: 48px 0 32px;
  background: var(--gfb-color-bg-soft);
  border-bottom: 1px solid var(--gfb-color-border);
}

.blog-single__meta-top {
  margin-bottom: 18px;
}

.blog-single__title {
  font-size: clamp(26px, 4vw, 38px);
  line-height: 1.45;
  font-weight: 800;
  letter-spacing: 0.01em;
  margin: 0 0 28px;
  color: var(--gfb-color-text);
}

.blog-single__meta-bottom {
  display: flex;
  align-items: center;
  gap: 20px;
  flex-wrap: wrap;
  padding-top: 20px;
  border-top: 1px solid var(--gfb-color-border);
}

.blog-author-mini {
  display: flex;
  align-items: center;
  gap: 10px;
}

.blog-author-mini__avatar {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  object-fit: cover;
  background: var(--gfb-color-primary-soft);
}

.blog-author-mini__name {
  font-size: 13px;
  font-weight: 600;
  color: var(--gfb-color-text);
}

.blog-single__reading-time,
.blog-single__date {
  font-size: 12px;
  color: var(--gfb-color-text-muted);
}

.blog-single__date {
  margin-left: auto;
}

/* Hero Image */
.blog-single__hero-img {
  max-width: 1120px;
  margin: 32px auto 0;
  padding: 0 24px;
}

.blog-single__hero-img img {
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 8;
  object-fit: cover;
  border-radius: var(--gfb-radius);
  display: block;
}

/* Layout */
.blog-single__wrap {
  padding: 56px 0 64px;
}

.blog-single__layout {
  display: grid;
  grid-template-columns: 1fr 240px;
  gap: 64px;
  align-items: start;
}

/* Body Typography */
.blog-single__body {
  font-size: 16px;
  line-height: 1.95;
  color: var(--gfb-color-text);
  max-width: 720px;
}

.blog-single__body p {
  margin: 0 0 22px;
}

.blog-single__body h2 {
  font-size: clamp(22px, 2.4vw, 26px);
  font-weight: 800;
  line-height: 1.5;
  margin: 56px 0 20px;
  padding-top: 12px;
  color: var(--gfb-color-text);
  border-top: 2px solid var(--gfb-color-primary);
  padding-top: 24px;
}

.blog-single__body h3 {
  font-size: 19px;
  font-weight: 700;
  line-height: 1.5;
  margin: 40px 0 14px;
  color: var(--gfb-color-text);
  padding-left: 14px;
  border-left: 4px solid var(--gfb-color-primary);
}

.blog-single__body h4 {
  font-size: 16px;
  font-weight: 700;
  margin: 28px 0 10px;
}

.blog-single__body ul,
.blog-single__body ol {
  margin: 0 0 24px;
  padding-left: 1.6em;
}

.blog-single__body li {
  margin-bottom: 8px;
}

.blog-single__body strong {
  font-weight: 700;
  color: var(--gfb-color-text);
}

.blog-single__body a {
  color: var(--gfb-color-primary);
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-thickness: 1px;
}

.blog-single__body a:hover {
  color: var(--gfb-color-accent);
}

.blog-single__body blockquote {
  margin: 32px 0;
  padding: 22px 28px;
  background: var(--gfb-color-bg-section);
  border-left: 4px solid var(--gfb-color-primary);
  border-radius: 0 var(--gfb-radius-sm) var(--gfb-radius-sm) 0;
  font-size: 15px;
  color: var(--gfb-color-text-light);
  font-style: normal;
}

.blog-single__body blockquote p:last-child {
  margin-bottom: 0;
}

.blog-single__body img,
.blog-single__body .wp-block-image {
  max-width: 100%;
  height: auto;
  margin: 32px 0;
  border-radius: var(--gfb-radius);
  display: block;
}

.blog-single__body figure {
  margin: 32px 0;
}

.blog-single__body figure img {
  margin: 0;
  border-radius: var(--gfb-radius);
}

.blog-single__body figcaption {
  font-size: 12px;
  color: var(--gfb-color-text-muted);
  margin-top: 10px;
  text-align: center;
}

.blog-single__body code {
  background: var(--gfb-color-border-soft);
  padding: 2px 6px;
  border-radius: 3px;
  font-family: "SF Mono", Menlo, Consolas, monospace;
  font-size: 0.9em;
}

.blog-single__body pre {
  background: #1D2327;
  color: #fff;
  padding: 20px;
  border-radius: var(--gfb-radius);
  overflow-x: auto;
  margin: 24px 0;
  font-size: 13px;
  line-height: 1.6;
}

.blog-single__body pre code {
  background: none;
  padding: 0;
  color: inherit;
}

/* ===================================================================
   4. TABLE OF CONTENTS (sticky)
   =================================================================== */
.blog-toc {
  position: sticky;
  top: 100px;
  align-self: start;
  padding: 24px 20px;
  background: var(--gfb-color-bg-soft);
  border-radius: var(--gfb-radius);
  font-size: 13px;
  line-height: 1.6;
}

.blog-toc__title {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--gfb-color-text-muted);
  margin-bottom: 16px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--gfb-color-border);
}

.blog-toc__list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.blog-toc__list li {
  margin-bottom: 10px;
}

.blog-toc__list li.is-sub {
  padding-left: 14px;
  font-size: 12px;
}

.blog-toc__list a {
  color: var(--gfb-color-text-light);
  text-decoration: none;
  transition: color 0.15s ease;
  display: block;
  line-height: 1.55;
}

.blog-toc__list a:hover,
.blog-toc__list li.is-active > a {
  color: var(--gfb-color-primary);
  font-weight: 600;
}

/* ===================================================================
   5. SHARE
   =================================================================== */
.blog-share {
  display: flex;
  align-items: center;
  gap: 12px;
  margin: 48px 0 32px;
  padding: 20px 0;
  border-top: 1px solid var(--gfb-color-border);
  border-bottom: 1px solid var(--gfb-color-border);
}

.blog-share__label {
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--gfb-color-text-muted);
  font-weight: 700;
}

.blog-share__btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 36px;
  height: 36px;
  padding: 0 12px;
  border-radius: 999px;
  background: var(--gfb-color-border-soft);
  color: var(--gfb-color-text-light);
  font-size: 12px;
  font-weight: 700;
  text-decoration: none;
  border: none;
  cursor: pointer;
  transition: all 0.2s ease;
  font-family: inherit;
}

.blog-share__btn:hover {
  background: var(--gfb-color-primary);
  color: var(--gfb-color-white);
}

/* ===================================================================
   6. AUTHOR CARD
   =================================================================== */
.blog-author {
  display: flex;
  gap: 20px;
  align-items: flex-start;
  margin: 32px 0 0;
  padding: 24px;
  background: var(--gfb-color-bg-soft);
  border-radius: var(--gfb-radius);
}

.blog-author__avatar {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  object-fit: cover;
  flex-shrink: 0;
  background: var(--gfb-color-primary-soft);
}

.blog-author__info {
  flex: 1;
}

.blog-author__name {
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 8px;
  color: var(--gfb-color-text);
}

.blog-author__bio {
  font-size: 13px;
  line-height: 1.75;
  color: var(--gfb-color-text-light);
  margin: 0;
}

/* ===================================================================
   7. RELATED
   =================================================================== */
.blog-related {
  padding: 56px 0;
  border-top: 1px solid var(--gfb-color-border);
  background: var(--gfb-color-bg-soft);
}

.blog-related__title {
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--gfb-color-text-muted);
  margin: 0 0 28px;
  text-transform: uppercase;
}

.blog-grid--related .blog-card__title {
  font-size: 15px;
  -webkit-line-clamp: 2;
}

/* ===================================================================
   8. RESPONSIVE
   =================================================================== */
@media (max-width: 960px) {
  .blog-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 32px 20px;
  }

  .blog-single__layout {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .blog-toc {
    position: static;
    order: -1;
  }
}

@media (max-width: 600px) {
  .blog-archive .container,
  .blog-single .container,
  .blog-related .container {
    padding-left: 16px;
    padding-right: 16px;
  }

  .blog-grid {
    grid-template-columns: 1fr;
    gap: 28px;
  }

  .blog-cat-bar {
    margin-bottom: 28px;
  }

  .blog-single__header {
    padding: 32px 0 24px;
  }

  .blog-single__title {
    font-size: 22px;
    line-height: 1.5;
  }

  .blog-single__date {
    margin-left: 0;
    width: 100%;
  }

  .blog-single__body {
    font-size: 15px;
  }

  .blog-single__body h2 {
    font-size: 20px;
    margin-top: 40px;
  }

  .blog-single__body h3 {
    font-size: 17px;
  }

  .blog-author {
    flex-direction: column;
    gap: 14px;
  }

  .blog-related {
    padding: 40px 0;
  }
}