/* ============================================================
   習慣特化型家庭教師なれる — ブログ記事スタイル
   配色: 自社カラー(#094eaf青 / #ff9351オレンジ / #faf6efクリーム)
   設計: 可読性最優先、トップページと一貫
   ============================================================ */

:root {
  --c-blue: #094eaf;
  --c-blue-deep: #063b85;
  --c-blue-soft: #e7eef9;
  --c-orange: #ff9351;
  --c-orange-soft: #fff1e7;
  --c-cream: #faf6ef;
  --c-cream-2: #f3ede0;
  --c-paper: #ffffff;
  --c-wood: #c8a577;
  --c-ink: #1d1d1f;
  --c-ink-2: #3a3a3d;
  --c-ink-3: #6b6b70;
  --c-line: #e7e2d6;
  --f-serif: 'Noto Serif JP', serif;
  --f-sans: 'Noto Sans JP', sans-serif;
}

body.article-body {
  background: var(--c-cream);
  color: var(--c-ink);
  font-family: var(--f-sans);
  margin: 0;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

/* ===== Header ===== */
.article-header {
  background: rgba(255,255,255,0.96);
  backdrop-filter: saturate(180%) blur(12px);
  border-bottom: 1px solid var(--c-line);
  position: sticky;
  top: 0;
  z-index: 100;
}
.article-header .wrap {
  max-width: 1180px;
  margin: 0 auto;
  padding: 14px 24px;
  display: flex;
  align-items: center;
  gap: 24px;
}
.article-header .brand {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  color: var(--c-ink);
}
.article-header .brand-logo { width: 40px; height: auto; }
.article-header .brand-text .jp {
  display: block;
  font-family: var(--f-serif);
  font-weight: 700;
  font-size: 16px;
  color: var(--c-ink);
}
.article-header .brand-text .sub {
  display: block;
  font-size: 10px;
  letter-spacing: 0.12em;
  color: var(--c-ink-3);
  margin-top: 2px;
}
.article-header .nav {
  display: flex;
  gap: 24px;
  margin-left: auto;
}
.article-header .nav a {
  font-size: 13px;
  font-weight: 600;
  color: var(--c-ink-2);
  text-decoration: none;
  transition: color .15s;
}
.article-header .nav a:hover { color: var(--c-blue); }
.article-header .btn {
  display: inline-flex;
  align-items: center;
  padding: 8px 16px;
  font-size: 13px;
  font-weight: 700;
  border-radius: 8px;
  text-decoration: none;
  transition: transform .15s;
}
.article-header .btn-cta {
  background: var(--c-orange);
  color: #fff;
  box-shadow: 0 3px 0 #c9591f;
}
.article-header .btn-cta:hover { transform: translateY(-1px); }

@media (max-width: 760px) {
  .article-header .nav { display: none; }
  .article-header .brand-text .sub { display: none; }
}

/* ===== Article Hero ===== */
.article-main {
  padding: 32px 0 0;
}
.article {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 24px;
}
.article-thumb {
  border-radius: 16px;
  overflow: hidden;
  margin-bottom: 28px;
  background: var(--c-cream-2);
  aspect-ratio: 16/9;
}
.article-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
.article-meta-top {
  margin-bottom: 16px;
}
.breadcrumbs {
  font-size: 12px;
  color: var(--c-ink-3);
  margin-bottom: 8px;
}
.breadcrumbs a {
  color: var(--c-ink-3);
  text-decoration: none;
  transition: color .15s;
}
.breadcrumbs a:hover { color: var(--c-blue); }
.breadcrumbs .sep { margin: 0 6px; opacity: 0.5; }
.article-date-cat {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 13px;
  color: var(--c-ink-3);
}
.cat-pill {
  display: inline-block;
  padding: 4px 12px;
  background: var(--c-blue-soft);
  color: var(--c-blue);
  font-size: 11px;
  font-weight: 700;
  border-radius: 100px;
  letter-spacing: 0.05em;
}
.article-title {
  font-family: var(--f-serif);
  font-weight: 900;
  font-size: clamp(26px, 3.5vw, 38px);
  line-height: 1.45;
  letter-spacing: 0.02em;
  margin: 0 0 20px;
  color: var(--c-ink);
}
.article-lead {
  font-size: 16px;
  color: var(--c-ink-2);
  line-height: 1.9;
  padding: 20px 24px;
  border-left: 4px solid var(--c-orange);
  background: var(--c-orange-soft);
  border-radius: 4px;
  margin: 0 0 40px;
}

/* ===== Body + TOC layout ===== */
.article-body-wrap {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 240px;
  gap: 64px;
  margin-top: 40px;
  align-items: start;
}
@media (max-width: 980px) {
  .article-body-wrap {
    grid-template-columns: 1fr;
    gap: 24px;
  }
}

.article-toc {
  position: sticky;
  top: 88px;
  background: var(--c-cream);
  border: 1px solid var(--c-wood);
  border-radius: 12px;
  padding: 20px 22px;
  font-size: 13px;
  order: 2;
}
@media (max-width: 980px) {
  .article-toc {
    position: static;
    order: 1;
    margin-bottom: 16px;
  }
}
.toc-title {
  font-family: var(--f-serif);
  font-weight: 700;
  color: var(--c-blue);
  margin-bottom: 12px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--c-line);
  letter-spacing: 0.05em;
}
.toc-content ul {
  list-style: none;
  padding: 0;
  margin: 0;
}
.toc-content li {
  padding: 6px 0;
  border-bottom: 1px dotted var(--c-line);
}
.toc-content li:last-child { border-bottom: none; }
.toc-content li.toc-h3 {
  padding-left: 14px;
  font-size: 12px;
}
.toc-content a {
  color: var(--c-ink-2);
  text-decoration: none;
  display: block;
  transition: color .15s;
}
.toc-content a:hover { color: var(--c-blue); }

/* ===== Article Content (本文) ===== */
.article-content {
  background: var(--c-paper);
  padding: 48px clamp(24px, 4vw, 56px);
  border-radius: 16px;
  box-shadow: 0 1px 3px rgba(0,0,0,.04), 0 8px 24px rgba(9,78,175,.04);
  font-size: 16.5px;
  line-height: 1.95;
  letter-spacing: 0.02em;
  color: var(--c-ink);
  order: 1;
  word-break: normal;
  overflow-wrap: anywhere;
}

.article-content p {
  margin: 0 0 1.6em;
}
.article-content strong {
  color: var(--c-blue-deep);
  font-weight: 700;
}

/* 見出し */
.article-content h2 {
  font-family: var(--f-serif);
  font-weight: 900;
  font-size: clamp(22px, 2.6vw, 28px);
  line-height: 1.5;
  margin: 2.4em 0 1em;
  padding: 16px 20px;
  background: linear-gradient(90deg, var(--c-blue) 0%, var(--c-blue-deep) 100%);
  color: #fff;
  border-radius: 10px;
  letter-spacing: 0.02em;
}
.article-content h2:first-child { margin-top: 0; }

.article-content h3 {
  font-family: var(--f-serif);
  font-weight: 700;
  font-size: clamp(18px, 2.1vw, 22px);
  line-height: 1.5;
  margin: 2em 0 .8em;
  padding-bottom: 12px;
  border-bottom: 3px solid var(--c-orange);
  color: var(--c-ink);
  letter-spacing: 0.02em;
}

.article-content h4 {
  font-family: var(--f-serif);
  font-size: 17px;
  font-weight: 700;
  margin: 1.6em 0 .6em;
  padding-left: 14px;
  border-left: 4px solid var(--c-orange);
  color: var(--c-ink);
}

/* リスト */
.article-content ul,
.article-content ol {
  margin: 0 0 1.6em;
  padding-left: 1.6em;
}
.article-content ul li,
.article-content ol li {
  margin-bottom: 0.5em;
  line-height: 1.85;
}
.article-content ul li::marker { color: var(--c-orange); }

/* リンク */
.article-content a {
  color: var(--c-blue);
  text-decoration: underline;
  text-decoration-thickness: 1.5px;
  text-underline-offset: 3px;
  transition: color .15s;
}
.article-content a:hover {
  color: var(--c-blue-deep);
  background: var(--c-blue-soft);
}

/* 引用 */
.article-content blockquote {
  margin: 1.8em 0;
  padding: 24px 28px;
  border-left: 4px solid var(--c-orange);
  background: var(--c-cream);
  border-radius: 0 8px 8px 0;
  color: var(--c-ink-2);
  font-style: italic;
  font-size: 15.5px;
  line-height: 1.85;
}
.article-content blockquote p:last-child { margin-bottom: 0; }

/* テーブル */
.article-content table {
  width: 100%;
  border-collapse: collapse;
  margin: 1.8em 0;
  font-size: 14px;
  background: var(--c-paper);
  border-radius: 10px;
  overflow: hidden;
  box-shadow: 0 1px 3px rgba(0,0,0,.05);
}
.article-content thead {
  background: linear-gradient(90deg, var(--c-blue) 0%, var(--c-blue-deep) 100%);
  color: #fff;
}
.article-content th {
  padding: 14px 16px;
  text-align: left;
  font-weight: 700;
  letter-spacing: 0.02em;
  font-family: var(--f-serif);
}
.article-content td {
  padding: 14px 16px;
  border-bottom: 1px solid var(--c-line);
}
.article-content tbody tr:hover { background: var(--c-cream); }
.article-content tbody tr:last-child td { border-bottom: none; }

/* 画像 */
.article-content img,
.article-content .wp-block-image img {
  max-width: 100%;
  height: auto;
  border-radius: 12px;
  margin: 1.6em 0;
  display: block;
}
.article-content figure {
  margin: 1.6em 0;
}
.article-content figcaption {
  font-size: 13px;
  color: var(--c-ink-3);
  margin-top: 8px;
  text-align: center;
}

/* CTA blocks (記事内CTA) */
.article-content .wp-block-buttons {
  margin: 2em 0;
}
.article-content .wp-block-button__link {
  background: var(--c-orange) !important;
  color: #fff !important;
  font-weight: 700 !important;
  padding: 14px 28px !important;
  border-radius: 10px !important;
  text-decoration: none !important;
  box-shadow: 0 4px 0 #c9591f;
  transition: transform .15s;
  display: inline-block;
}
.article-content .wp-block-button__link:hover {
  transform: translateY(-1px);
  background: var(--c-orange) !important;
}

/* CTA group ブロック対策（巨大SVG防止） */
.article-content .wp-block-group {
  background: var(--c-blue-soft);
  padding: 28px 24px;
  border-radius: 14px;
  margin: 2em 0;
  border: 1px solid rgba(9,78,175,.12);
}
.article-content svg {
  max-width: 32px;
  max-height: 32px;
  vertical-align: middle;
}

/* ===== Article CTA Section ===== */
.article-cta {
  margin: 80px 0 0;
  padding: 60px 24px;
  background: linear-gradient(135deg, var(--c-blue) 0%, var(--c-blue-deep) 100%);
  border-radius: 24px;
  color: #fff;
  text-align: center;
}
.cta-inner {
  max-width: 700px;
  margin: 0 auto;
}
.cta-eyebrow {
  display: inline-block;
  padding: 6px 16px;
  background: rgba(255,255,255,0.15);
  border-radius: 100px;
  font-size: 12px;
  letter-spacing: 0.1em;
  margin-bottom: 20px;
}
.cta-h2 {
  font-family: var(--f-serif);
  font-weight: 900;
  font-size: clamp(24px, 3vw, 32px);
  line-height: 1.5;
  margin: 0 0 20px;
}
.cta-lead {
  color: rgba(255,255,255,0.92);
  font-size: 15px;
  line-height: 1.85;
  margin-bottom: 32px;
}
.cta-row {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}
.cta-row .btn {
  display: inline-flex;
  align-items: center;
  padding: 14px 28px;
  font-size: 15px;
  font-weight: 700;
  border-radius: 12px;
  text-decoration: none;
  transition: transform .15s;
}
.cta-row .btn-cta {
  background: var(--c-orange);
  color: #fff;
  box-shadow: 0 5px 0 #c9591f;
}
.cta-row .btn-cta:hover { transform: translateY(-2px); }
.cta-row .btn-ghost {
  background: rgba(255,255,255,0.1);
  border: 1px solid rgba(255,255,255,0.4);
  color: #fff;
}

/* ===== Related Articles ===== */
.article-related {
  margin: 64px 0;
}
.article-related .wrap-narrow {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 24px;
}
.article-related .section-title {
  font-family: var(--f-serif);
  font-weight: 900;
  font-size: 24px;
  color: var(--c-blue);
  margin: 0 0 28px;
  padding-bottom: 14px;
  border-bottom: 2px solid var(--c-wood);
}
.related-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
@media (max-width: 760px) {
  .related-grid { grid-template-columns: 1fr; }
}
.related-card {
  background: var(--c-paper);
  border-radius: 12px;
  overflow: hidden;
  text-decoration: none;
  color: var(--c-ink);
  box-shadow: 0 1px 3px rgba(0,0,0,.04);
  transition: transform .2s, box-shadow .2s;
  border: 1px solid var(--c-line);
}
.related-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 6px 20px rgba(9,78,175,.08);
}
.related-thumb {
  aspect-ratio: 16/9;
  background: var(--c-cream-2);
  overflow: hidden;
}
.related-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.related-body { padding: 16px 20px 20px; }
.related-body time {
  font-size: 11px;
  color: var(--c-ink-3);
  letter-spacing: 0.05em;
}
.related-body h3 {
  font-family: var(--f-serif);
  font-size: 15px;
  font-weight: 700;
  line-height: 1.5;
  margin: 6px 0 0;
  color: var(--c-ink);
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* ===== Mobile Optim ===== */
@media (max-width: 600px) {
  .article-content {
    padding: 28px 20px;
    font-size: 15.5px;
    border-radius: 12px;
  }
  .article-title {
    font-size: 22px;
    line-height: 1.45;
  }
  .article-content h2 {
    padding: 12px 16px;
    font-size: 19px;
  }
  .article-content h3 {
    font-size: 17px;
  }
  .article-cta {
    padding: 40px 20px;
    border-radius: 16px;
  }
}

/* ============================================================
   記事内wp:buttonブロック強制スタイル（AI生成の白背景青文字を上書き）
   ============================================================ */
.article-content .wp-block-buttons {
  display: flex !important;
  flex-wrap: wrap;
  gap: 14px;
  justify-content: center;
  margin: 2.4em 0 !important;
}
.article-content .wp-block-button {
  margin: 0;
}
.article-content .wp-block-button__link,
.article-content .wp-block-button__link.has-background,
.article-content .wp-block-button__link.has-text-color {
  background: var(--c-orange) !important;
  background-color: var(--c-orange) !important;
  color: #fff !important;
  font-weight: 700 !important;
  padding: 16px 32px !important;
  border-radius: 12px !important;
  border: none !important;
  text-decoration: none !important;
  display: inline-block !important;
  letter-spacing: 0.02em;
  box-shadow: 0 4px 0 #c9591f, 0 6px 14px rgba(255,147,81,0.25);
  transition: transform .15s, box-shadow .15s;
  font-size: 15px !important;
  min-width: 220px;
  text-align: center;
}
.article-content .wp-block-button__link:hover {
  transform: translateY(-2px) !important;
  box-shadow: 0 6px 0 #c9591f, 0 10px 20px rgba(255,147,81,0.3) !important;
  background: var(--c-orange) !important;
  color: #fff !important;
}

/* LINE系ボタンは緑色 */
.article-content .wp-block-button__link[href*="lin.ee"],
.article-content .wp-block-button__link[href*="line.me"] {
  background: #06c755 !important;
  background-color: #06c755 !important;
  box-shadow: 0 4px 0 #048a3b, 0 6px 14px rgba(6,199,85,0.25) !important;
}
.article-content .wp-block-button__link[href*="lin.ee"]:hover,
.article-content .wp-block-button__link[href*="line.me"]:hover {
  box-shadow: 0 6px 0 #048a3b, 0 10px 20px rgba(6,199,85,0.3) !important;
}

/* CTA group block 全体の体裁 */
.article-content .wp-block-group {
  background: linear-gradient(135deg, var(--c-blue-soft) 0%, var(--c-cream) 100%) !important;
  padding: 32px 28px !important;
  border-radius: 16px !important;
  margin: 2.4em 0 !important;
  border: 1px solid rgba(9,78,175,.15) !important;
}
.article-content .wp-block-group h2,
.article-content .wp-block-group h3 {
  background: transparent !important;
  color: var(--c-blue-deep) !important;
  padding: 0 !important;
  border: none !important;
  margin-bottom: 12px !important;
  text-align: center;
}
.article-content .wp-block-group p {
  text-align: center;
  margin-bottom: 1em !important;
}

/* モバイル */
@media (max-width: 600px) {
  .article-content .wp-block-buttons {
    flex-direction: column;
    align-items: stretch;
  }
  .article-content .wp-block-button__link {
    width: 100%;
    min-width: 0 !important;
    padding: 14px 20px !important;
    font-size: 14px !important;
  }
}

/* ============================================================
   wp:button 強制override（specificity を上げて確実に）
   ============================================================ */
body.article-body .article-content .wp-block-buttons .wp-block-button .wp-block-button__link.wp-element-button {
  background: var(--c-orange) !important;
  background-color: var(--c-orange) !important;
  color: #ffffff !important;
  font-weight: 700 !important;
  padding: 16px 32px !important;
  border-radius: 12px !important;
  border: none !important;
  text-decoration: none !important;
  letter-spacing: 0.02em !important;
  box-shadow: 0 4px 0 #c9591f, 0 6px 14px rgba(255,147,81,0.25) !important;
  font-size: 15px !important;
  min-width: 240px !important;
  text-align: center !important;
  display: inline-block !important;
}
body.article-body .article-content .wp-block-buttons .wp-block-button .wp-block-button__link.wp-element-button[href*="lin.ee"],
body.article-body .article-content .wp-block-buttons .wp-block-button .wp-block-button__link.wp-element-button[href*="line.me"] {
  background: #06c755 !important;
  background-color: #06c755 !important;
  box-shadow: 0 4px 0 #048a3b, 0 6px 14px rgba(6,199,85,0.25) !important;
}
body.article-body .article-content .wp-block-buttons {
  display: flex !important;
  flex-wrap: wrap !important;
  gap: 16px !important;
  justify-content: center !important;
  margin: 2.4em 0 !important;
}

/* WP標準クラス（has-XX-color等）を全部上書き */
body.article-body .article-content .has-vivid-cyan-blue-color,
body.article-body .article-content .has-white-background-color,
body.article-body .article-content .has-pale-cyan-blue-background-color {
  color: #ffffff !important;
  background-color: var(--c-orange) !important;
}

/* ============================================================
   独自CTAブロック（iida-cta-block）— 今後の記事用テンプレ
   ============================================================ */
.article-content .iida-cta-block {
  background: linear-gradient(135deg, #094eaf 0%, #063b85 100%);
  color: #fff;
  padding: 40px 32px;
  border-radius: 18px;
  margin: 2.6em 0;
  text-align: center;
  box-shadow: 0 8px 24px rgba(9,78,175,0.18);
}
.article-content .iida-cta-block .iida-cta-h3 {
  font-family: var(--f-serif);
  font-size: 22px;
  font-weight: 900;
  color: #fff;
  margin: 0 0 14px;
  padding: 0;
  border: none;
  background: transparent;
  letter-spacing: 0.03em;
}
.article-content .iida-cta-block .iida-cta-lead {
  font-size: 14px;
  color: rgba(255,255,255,0.92);
  line-height: 1.85;
  margin: 0 0 26px;
}
.article-content .iida-cta-block .iida-cta-btns {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  justify-content: center;
}
.article-content .iida-cta-block .iida-cta-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 16px 32px;
  border-radius: 12px;
  font-weight: 700;
  font-size: 15px;
  text-decoration: none !important;
  letter-spacing: 0.03em;
  transition: transform .15s, box-shadow .15s;
  min-width: 220px;
  background: rgba(255,255,255,0.12) !important;
  color: #fff !important;
  border: none !important;
}
.article-content .iida-cta-block .iida-cta-btn:hover {
  transform: translateY(-2px);
  background: rgba(255,255,255,0.18) !important;
  color: #fff !important;
}
.article-content .iida-cta-block .iida-cta-btn-orange {
  background: #ff9351 !important;
  color: #fff !important;
  box-shadow: 0 5px 0 #c9591f, 0 8px 16px rgba(255,147,81,0.3);
}
.article-content .iida-cta-block .iida-cta-btn-orange:hover {
  background: #ff9351 !important;
  box-shadow: 0 6px 0 #c9591f, 0 10px 20px rgba(255,147,81,0.35);
}
.article-content .iida-cta-block .iida-cta-btn-line {
  background: #06c755 !important;
  color: #fff !important;
  box-shadow: 0 5px 0 #048a3b, 0 8px 16px rgba(6,199,85,0.3);
}
.article-content .iida-cta-block .iida-cta-btn-line:hover {
  background: #06c755 !important;
  box-shadow: 0 6px 0 #048a3b, 0 10px 20px rgba(6,199,85,0.35);
}
@media (max-width: 600px) {
  .article-content .iida-cta-block { padding: 28px 20px; }
  .article-content .iida-cta-block .iida-cta-h3 { font-size: 18px; }
  .article-content .iida-cta-block .iida-cta-btns { flex-direction: column; align-items: stretch; }
  .article-content .iida-cta-block .iida-cta-btn { min-width: 0; width: 100%; }
}

/* ============================================================
   著者ボックス（iida-author-box）
   ============================================================ */
.article-content .iida-author-box {
  display: flex;
  gap: 20px;
  background: var(--c-cream);
  padding: 22px 24px;
  border-radius: 14px;
  border-left: 4px solid var(--c-orange);
  margin: 1.8em 0 2.4em;
  align-items: flex-start;
}
.article-content .iida-author-img {
  width: 88px;
  height: 88px;
  border-radius: 50%;
  object-fit: cover;
  object-position: top;
  flex-shrink: 0;
  border: 3px solid #fff;
  box-shadow: 0 2px 8px rgba(0,0,0,0.08);
  margin: 0 !important;
}
.article-content .iida-author-text { flex: 1; }
.article-content .iida-author-name {
  font-family: var(--f-serif);
  font-weight: 700;
  font-size: 17px;
  color: var(--c-ink);
  margin: 0 0 2px !important;
}
.article-content .iida-author-role {
  font-size: 12px;
  color: var(--c-blue);
  font-weight: 600;
  letter-spacing: 0.05em;
  margin: 0 0 8px !important;
}
.article-content .iida-author-desc {
  font-size: 13.5px;
  color: var(--c-ink-2);
  line-height: 1.75;
  margin: 0 !important;
}
@media (max-width: 600px) {
  .article-content .iida-author-box {
    flex-direction: column;
    align-items: center;
    text-align: center;
    padding: 20px;
  }
  .article-content .iida-author-img { width: 72px; height: 72px; }
}