/* ========================================
   1. Headerレイアウト補正
======================================== */
.md-header {
  background: #ffffff;
  border-bottom: 1px solid #e2e8f0;
  position: sticky;
  top: 0;
  z-index: 1000;
}

.md-header__button.md-logo img {
  height: 48px;
}

.md-main {
  padding-top: 0 !important;
  background: #f1f5f9;
}

.md-main__inner {
  margin-top: 0 !important;
}

.md-container {
  padding-top: 0 !important;
}

/* ========================================
   2. サイドバー（共通）
======================================== */
.md-sidebar {
  top: 48px !important;
  height: calc(100vh - 48px);
  --md-accent-fg-color: inherit;
}

.md-sidebar__scrollwrap {
  margin-top: 0 !important;
  scrollbar-width: thin;
  scrollbar-color: #C1C7D0 transparent;
}

.md-sidebar__scrollwrap:hover,
.md-sidebar__scrollwrap:focus-within {
  scrollbar-color: #8F99A6 transparent !important;
}

.md-sidebar__scrollwrap::-webkit-scrollbar {
  width: 8px;
}
.md-sidebar__scrollwrap::-webkit-scrollbar-track {
  background: transparent;
}
.md-sidebar__scrollwrap::-webkit-scrollbar-thumb {
  background-color: #C1C7D0;
  border-radius: 6px;
}
.md-sidebar__scrollwrap::-webkit-scrollbar-thumb:hover,
.md-sidebar__scrollwrap::-webkit-scrollbar-thumb:active {
  background-color: #8F99A6;
}

/* ========================================
   3. 中央コンテンツ
======================================== */
.md-content {
  background: #ffffff;
  border-radius: 12px;
  padding: 16px 24px;
  margin: 24px auto;
  max-width: 840px;
  box-shadow: 0 4px 20px rgba(0,0,0,0.04);
}

/* ========================================
   4. タイポ変数
======================================== */
:root {
  --md-default-fg-color: #242424;
  --md-default-fg-color--light: #4b5563;
  --md-default-fg-color--lighter: #9ca3af;
  --md-default-fg-color--lightest: #f3f4f6;

  --md-typeset-color: #242424;
  --md-typeset-heading-color: #242424;
  --md-typeset-a-color: #3ea8ff;

  --md-code-bg-color: #f1f5f9;
  --md-code-fg-color: #0f172a;

  --md-text-font: "Noto Sans JP", -apple-system, BlinkMacSystemFont, "Segoe UI", "Helvetica Neue", Arial, sans-serif;
  --md-code-font: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, Courier, monospace;
}

/* ========================================
   5. 見出し・本文 (Zennライク)
======================================== */
.md-typeset {
  color: var(--md-default-fg-color);
  line-height: 1.9;
  font-size: 16px;
  letter-spacing: 0.03em;
}

/* --- リンク --- */
.md-typeset a {
  color: var(--md-typeset-a-color);
  text-decoration: none;
}
.md-typeset a:hover {
  text-decoration: underline;
}

/* --- 見出し --- */
.md-typeset h1 {
  font-size: 1.8rem;
  color: #5b5d61;
  font-weight: 800;
  line-height: 1.4;
  margin-top: 0.5em;
  margin-bottom: 1.5em;
  letter-spacing: 0.05em;
}

.md-typeset h2 {
  font-size: 1.4rem;
  font-weight: 700;
  margin-top: 2.5em; 
  margin-bottom: 1em;
  padding-bottom: 0.3em;
  border-top: none;
  border-bottom: 2px solid #e2e8f0;
}

.md-typeset h3 {
  font-size: 1.15rem;
  font-weight: 700;
  margin-top: 2em;
  margin-bottom: 1em;
}

.md-typeset p {
  margin-bottom: 1.2em;
}

/* --- 引用 --- */
.md-typeset blockquote {
  border-left: 4px solid #cbd5e1;
  color: #475569;
  padding-left: 1rem;
  margin: 1.5em 0;
  background: transparent;
}

/* --- インラインコード --- */
.md-typeset code {
  background-color: #f1f5f9;
  color: #334155;
  padding: 0.2em 0.4em;
  border-radius: 6px;
  font-size: 0.85em;
  font-weight: 600;
  box-shadow: none;
  margin: 0 0.1em;
}

/* コードブロック内のコードには適用しない */
.md-typeset pre code {
  background-color: transparent;
  padding: 0;
  font-weight: normal;
}

/* --- 箇条書き --- */
.md-typeset ul, 
.md-typeset ol {
  margin: 1em 0;
  padding-left: 0em;
  line-height: 1.8;
}

.md-typeset li {
  margin-bottom: 0em;
}

/* --- 表 (Table) --- */
.md-typeset table:not([class]) {
  border-collapse: collapse;
  width: 100%;
  margin: 0.5em 0;
  font-size: 0.9em;
  background-color: #fff;
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 0 0 1px #e2e8f0;
}
.md-typeset table:not([class]) th {
  background-color: #f8fafc;
  font-weight: 700;
  color: #334155;
  border-bottom: 2px solid #e2e8f0;
  padding: 12px 16px;
  text-align: left;
}
.md-typeset table:not([class]) td {
  border-bottom: 1px solid #e2e8f0;
  padding: 12px 16px;
}

/* ========================================
   6. コードブロック
======================================== */
.md-typeset .highlight pre {
  background-color: #f5f5f5 !important;
  border-radius: 12px;
  border: 1px solid #e2e8f0;
  box-shadow: none;
  margin: 1.5em 0;
  padding: 12px 16px;
}

/* コードブロックのタイトルが付いている場合 */
.md-typeset .md-code__title {
  background-color: #2c5680;
  border-bottom: 1px solid #e2e8f0;
  border-top-left-radius: 12px;
  border-top-right-radius: 12px;
  padding: 0.5rem 1rem;
  font-weight: 700;
  font-size: 0.85em;
  color: #475569;
}
.md-typeset .highlight > .md-code__title + pre {
  border-top-left-radius: 0;
  border-top-right-radius: 0;
  border-top: none;
  margin-top: 0;
}

/* コピー完了メッセージ */
.md-dialog {
    background-color: #333333 !important;
}

.md-dialog__inner {
    color: #ffffff !important;
}

/* ========================================
   7. アラート / Admonition・詳細カード
======================================== */
.md-typeset .admonition,
.md-typeset details {
  border-radius: 10px;
  border: 1px solid #e2e8f0;
  box-shadow: 0 1px 2px rgba(0,0,0,0.03);
}

/* ========================================
   8. ナビゲーション & サイドバー詳細
======================================== */
.md-nav__link { color: #334155; font-weight: 400; }
.md-nav__link--active { color: #0f172a; font-weight: 600; }
.md-nav__link[for]:focus, .md-nav__link[for]:hover,
.md-nav__link[href]:focus, .md-nav__link[href]:hover { color: inherit !important; }

.md-sidebar--primary .md-sidebar__inner { padding: 8px 6px; }
.md-sidebar--primary .md-nav__list { padding-left: 4px; }
.md-sidebar--primary .md-nav__item { margin-bottom: 2px; }
.md-sidebar--primary > .md-nav__list > .md-nav__item { margin-bottom: 6px; }
.md-sidebar--primary .md-ellipsis { white-space: normal; }

.md-sidebar--primary .md-nav__link {
  display: flex; align-items: center; justify-content: space-between;
  width: 100%; box-sizing: border-box; padding: 6px 12px; margin: 1px 0;
  line-height: 1.2; border-radius: 10px; font-size: 0.75rem;
}
.md-sidebar--primary .md-nav__link:hover { background: #f1f5f9; }
.md-sidebar--primary .md-nav__link--active { background: #e0f2fe; color: #0284c7; font-weight: 600; }

.md-sidebar--primary .md-nav__list > .md-nav__item--section:nth-of-type(-n+2) > .md-nav__link {
  font-size: 0.9rem; font-weight: 600; border-left: 4px solid #0284c7;
  padding: 6px 8px; margin: 12px 4px 6px; color: #1B1B1A;
}
.md-sidebar--primary .md-nav__list > .md-nav__item--section:nth-of-type(2) > .md-nav__link {
  border-left-color: #94a3b8;
}

/* トグル制御 */
.md-sidebar--primary .md-nav__link:focus, .md-sidebar--primary .md-nav__link:focus-visible { outline: none !important; }
.md-sidebar--primary .md-nav__toggle:checked + .md-nav__link { color: inherit !important; }
.md-sidebar--primary .md-nav__icon svg { fill: #94a3b8 !important; }
.md-sidebar--primary .md-nav__toggle:checked + .md-nav__link .md-nav__icon svg { fill: #475569 !important; }
.md-sidebar--primary .md-nav__link::after { background: none !important; box-shadow: none !important; }
.md-sidebar--primary .md-nav__icon::after { background-color: #94a3b8 !important; border-radius: 0 !important; width: 1rem; height: 1rem; }
.md-sidebar--primary .md-nav__toggle:checked + .md-nav__link .md-nav__icon::after { transform: rotate(90deg); }
.md-sidebar--primary .md-nav__link:hover .md-nav__icon::after { background-color: #475569 !important; }

/* サブ階層に左側のガイドライン（ツリー線）を追加 */
.md-sidebar--primary .md-nav__list .md-nav__list {
  border-left: 2px solid #e2e8f0;
  margin-left: 22px;
  padding-left: 3px;
}

/* ホバー時にガイドラインを少し濃くして現在地を分かりやすくする */
.md-sidebar--primary .md-nav__item:hover > .md-nav__list {
  border-left-color: #cbd5e1;
}

/* ========================================
   サイドバー 階層ごとのフォントサイズ調整
======================================== */

/* 1階層目：「APIリファレンス」「スタートアップガイド」など */
.md-sidebar--primary .md-nav__list > .md-nav__item--section:nth-of-type(-n+2) > .md-nav__link {
  font-size: 0.8rem !important; /* 元の 0.9rem から少し縮小 */
}

/* 2階層目：「カスタマーエンゲージメント」「SMS」など */
.md-sidebar--primary .md-nav__item--section > .md-nav__list > .md-nav__item > .md-nav__link {
  font-size: 0.75rem !important;
}

/* 3階層目：「概要」「クイックスタート」「事前準備」など */
.md-sidebar--primary .md-nav__item--section > .md-nav__list > .md-nav__item > .md-nav__list > .md-nav__item > .md-nav__link {
  font-size: 0.7rem !important;
}

/* 4階層目：「サービス利用開始までの手順」「注意事項」など */
.md-sidebar--primary .md-nav__item--section > .md-nav__list > .md-nav__item > .md-nav__list > .md-nav__item > .md-nav__list > .md-nav__item > .md-nav__link {
  font-size: 0.6rem !important;
}

/* ========================================
   9. その他・レイアウト等
======================================== */
.references-classic-header { background: transparent; border: none; padding: 0 0 16px 0; }
.md-grid { max-width: 100%; }

@media screen and (min-width: 76.25em) {
  .md-main__inner { display: flex; }
  .md-sidebar--primary .md-nav__title { display: none; }
  .md-sidebar--primary { width: 260px; flex: 0 0 260px; }
  .md-content { flex: 1; margin-left: 0 !important; max-width: none; }
  .md-content__inner { max-width: none; margin: 0 !important; padding: 12px; }
}

.custom-footer { display: flex; justify-content: space-between; align-items: center; }
.footer-right img { height: 40px; }
.md-footer-meta__inner.md-grid { max-width: 100%; }
.footer-left { font-size: 0.85rem; color: #666; }

.md-top {
  background-color: #f8fafc !important; color: #1e293b !important;
  border: 1px solid #cbd5e1 !important; border-radius: 999px !important; box-shadow: none !important;
}
.md-top:hover { background-color: #e0f2fe !important; color: #0284c7 !important; border-color: #38bdf8 !important; }
.md-top svg { fill: currentColor !important; }

/* ヘッダーユーザーエリア */
.header-search-wrapper { display: flex; align-items: center; }
.header-user-actions {
  display: flex; align-items: center; justify-content: flex-end;
  min-width: 300px; margin-left: 16px; margin-right: 24px;
}
.auth-box { display: flex; align-items: center; gap: 12px; }
.user-email-container {
  display: inline-block; max-width: 300px; text-overflow: ellipsis; white-space: nowrap; text-align: right;
}
.user-email { font-size: 0.8rem; color: var(--md-default-fg-color); }
.login-text {
  font-size: 0.75rem; font-weight: 500; color: var(--md-default-fg-color) !important;
  text-decoration: none !important; border: 1px solid #333; padding: 5px 16px; border-radius: 50px; white-space: nowrap;
}
.trial-button {
  background-color: #0b5096; color: #fff !important; padding: 6px 18px; border: 1px solid #0b5096;
  border-radius: 50px; font-size: 0.75rem; font-weight: 700; text-decoration: none !important; white-space: nowrap;
}
@media screen and (max-width: 76.25em) {
  .header-user-actions { display: none; }
}

/* ========================================
   10. FAQ レイアウト (Admonition活用)
======================================== */
.md-typeset .admonition.faq {
  border: none;
  background-color: transparent;
  box-shadow: none;
  padding: 0;
  margin: 2em 0;
  position: relative;
}

/* 回答部分の左側のガイドライン */
.md-typeset .admonition.faq::before {
  content: "";
  position: absolute;
  top: 52px;
  bottom: 0;
  left: 6px;
  width: 3px;
  background-color: #e2e8f0;
  border-radius: 2px;
}

/* 質問(Q)ブロック */
.md-typeset .admonition.faq > .admonition-title {
  margin: 0 0 12px 0;
  padding: 0;
  background-color: transparent;
  border-radius: 0;
  border-left: none;
  font-size: 1.1rem;
  font-weight: 700;
  color: #0f172a;
  line-height: 1.5;
  display: block;
  position: relative;
  z-index: 2;
}

/* デフォルトのアイコンを消す */
.md-typeset .admonition.faq > .admonition-title::before {
  display: none;
}

/* 回答(A)ブロック内のテキスト等 */
.md-typeset .admonition.faq > :not(.admonition-title) {
  padding-left: 36px;
  color: #334155;
  font-size: 16px;
  line-height: 1.8;
  margin-bottom: 1em;
}

/* 回答内の最後の要素は下の余白をなくす */
.md-typeset .admonition.faq > :last-child {
  margin-bottom: 0;
}

/* ========================================
   11. 垂直ステップUI
======================================== */
.step-list {
  counter-reset: step;
}

/* div ラッパー内の ol のデフォルトスタイルをリセット */
.step-list > ol {
  list-style: none;
  margin-left: 0;
  padding-left: 0;
}

.step-list li {
  list-style: none;
  position: relative;
  padding-left: 1.3rem;
  padding-bottom: 2.5rem;
  margin-bottom: 0;
}

/* 垂直のガイドライン（::after でバッジ中央に合わせて配置） */
.step-list li::after {
  content: '';
  position: absolute;
  left: calc(-1.4rem + 1rem);
  top: 0;
  bottom: 0;
  width: 2px;
  background-color: var(--md-default-fg-color--lightest);
}

/* 最後のステップは直線を下に伸ばさない */
.step-list li:last-child {
  padding-bottom: 1rem;
}

.step-list li:last-child::after {
  display: none;
}

/* 丸いステップ番号のバッジ */
.step-list li::before {
  content: counter(step);
  counter-increment: step;
  position: absolute;
  left: -1.4rem;
  top: 0;
  width: 2rem;
  height: 2rem;
  background-color: #4b5563;
  color: #ffffff;
  border: 2px solid #4b5563;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: bold;
  font-size: 0.9rem;
  box-shadow: 0 0 0 4px var(--md-default-bg-color);
}

.step-list img {
  margin-top: 1rem;
  border: 1px solid var(--md-default-fg-color--lightest);
}