/*
 * column.css
 *
 * コラムページ (一覧・記事詳細) と LP コーナーの共通スタイル。
 * style.css の CSS 変数を再利用:
 *   --color-primary:   #222222
 *   --color-secondary: #16376E  (AiRee 紺)
 *   --color-tertiary:  #F77F2C  (橙 — CTA 専用色のためコラムでは未使用)
 *   --en-primary-font: "Roboto", sans-serif
 *   --jp-secondary-font: "Noto Sans JP", sans-serif
 *
 * デザイントークン (LP style.css 由来):
 *   カード影:     0 0 24px rgba(22, 55, 110, 0.10)
 *   見出し線:     linear-gradient(270deg, #182f5a 0%, #114999 100%)
 *   薄青:         #ECF4F9 (帯) / #E0F3FF (バッジ地)
 *   ページ地:     #f8f9fb (lp-column-corner と共通)
 */

/* ==========================================================================
   ページ共通 (base.html.j2 の <main>)
   ========================================================================== */

/* fixed ヘッダー (PC 98px / SP 7.4rem — style.css .header) の高さぶんだけ
   本文を下げる。一覧・詳細の両ページ共通 */
.column-main {
  padding-top: 98px;
  background: #f8f9fb;
}

@media screen and (max-width: 960px) {
  .column-main {
    padding-top: 7.4rem;
  }
}

/* ==========================================================================
   一覧ページ ヒーロー帯
   ========================================================================== */

.column-hero {
  background: linear-gradient(180deg, #ecf4f9 0%, #f8f9fb 100%);
  padding: 6.4rem 3.2rem 4.8rem;
}

.column-hero__inner {
  max-width: 114rem;
  margin: 0 auto;
  text-align: center;
}

/* 英語サブラベル (LP の Roboto 英語ラベルパターン) */
.column-hero__sub {
  font-family: var(--en-primary-font);
  font-size: 1.4rem;
  font-weight: 700;
  letter-spacing: 0.35em;
  /* 視覚中央合わせ: letter-spacing は末尾にも付くぶん左に寄って見える */
  text-indent: 0.35em;
  color: #114999;
  margin: 0 0 0.8rem;
}

.column-hero__lead {
  font-family: var(--jp-secondary-font);
  font-size: 1.5rem;
  line-height: 1.8;
  color: #555;
  margin: 1.6rem 0 0;
}

/* style.css .top-ttl-line は margin: 40px auto 0 — ヒーロー内では詰める */
.column-hero .top-ttl-line {
  margin-top: 2.4rem;
}

@media screen and (max-width: 960px) {
  .column-hero {
    padding: 4.8rem 2rem 4rem;
  }
}

/* ==========================================================================
   カードグリッド (一覧ページ・詳細の関連記事・LP コーナー共通)
   ========================================================================== */

.column-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2.4rem;
  padding: 0;
  margin: 0;
}

@media screen and (max-width: 960px) {
  .column-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media screen and (max-width: 600px) {
  .column-grid {
    grid-template-columns: 1fr;
  }
}

/* PC 3 列 / タブレット 2 列 / SP 1 列 */
.column-card-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2.4rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

@media screen and (max-width: 960px) {
  .column-card-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media screen and (max-width: 600px) {
  .column-card-grid {
    grid-template-columns: 1fr;
  }
}

/* ==========================================================================
   カード
   ========================================================================== */

/* 🚨 DOM 構造が 2 種類ある:
   - 一覧/関連記事: li.column-card > a.column-card__link > (eyecatch + body)
   - LP コーナー:   a.column-card            > (eyecatch + body)
   hover・flex は .column-card に、リンク既定打ち消しは両方に効かせる */
.column-card {
  display: flex;
  flex-direction: column;
  background: #fff;
  border-radius: 8px;
  overflow: hidden;
  color: var(--color-primary);
  text-decoration: none;
  box-shadow: 0 0 24px rgba(22, 55, 110, 0.10);
  transition: transform 0.18s ease, box-shadow 0.18s ease;
}

.column-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 32px rgba(22, 55, 110, 0.18);
}

/* li 構造のときの内側アンカー: カード全面をリンク領域にして flex を引き継ぐ */
.column-card__link {
  display: flex;
  flex-direction: column;
  flex: 1;
  color: inherit;
  text-decoration: none;
}

/* eyecatch */
.column-card__eyecatch {
  margin: 0;
  width: 100%;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background: #f0f2f5;
}

.column-card__eyecatch img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.3s ease;
}

.column-card:hover .column-card__eyecatch img {
  transform: scale(1.05);
}

.column-card__eyecatch--placeholder {
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, #e0f3ff 0%, #ecf4f9 100%);
}

/* 本文エリア */
.column-card__body {
  display: flex;
  flex-direction: column;
  gap: 0.8rem;
  padding: 1.6rem 1.8rem 1.8rem;
  flex: 1;
}

/* カテゴリバッジ行 (複数バッジを横並び wrap) */
.column-card__categories {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
}

/* カテゴリバッジ: 薄青ピル (LP NAVIS バッジの配色。橙は CTA 専用色として温存)
   一覧/LP コーナーは __category、詳細ヘッダーは __category (post 側) を共用 */
.column-card__category,
.column-post__category {
  display: inline-block;
  font-family: var(--jp-secondary-font);
  font-size: 1.1rem;
  font-weight: 700;
  line-height: 1;
  color: var(--color-secondary);
  background: #e0f3ff;
  border-radius: 9999px;
  padding: 0.5rem 1.1rem;
}

/* タイトル */
.column-card__title {
  font-family: var(--jp-secondary-font);
  font-size: 1.5rem;
  font-weight: 700;
  line-height: 1.55;
  color: var(--color-primary);
  margin: 0;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* 概要 (2 行で省略) */
.column-card__description {
  font-family: var(--jp-secondary-font);
  font-size: 1.3rem;
  line-height: 1.7;
  color: #555;
  margin: 0;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* 日付 */
.column-card__date {
  font-family: var(--en-primary-font);
  font-size: 1.1rem;
  color: #6b7280;
  margin-top: auto;
}

/* ==========================================================================
   LP コーナー (lp/index.html の #column section)
   ========================================================================== */

.lp-column-corner {
  background: #f8f9fb;
  padding: 7.2rem 0 8rem;
}

.lp-column-corner__inner {
  max-width: 114rem;
  margin: 0 auto;
  padding: 0 3.2rem;
}

/* タイトルは FAQ と同一デザイン: style.css の .top-ttl / .top-ttl-line を
   そのまま使用 (フォント・色・下線が常に FAQ と同期する)。
   line → カードの間隔も FAQ (.qa-lists margin-top: 96px / 80px) に合わせる。 */
.lp-column-corner__cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2.4rem;
  margin-top: 96px;
  margin-bottom: 3.6rem;
}

@media screen and (max-width: 960px) {
  .lp-column-corner__cards {
    grid-template-columns: repeat(2, 1fr);
    margin-top: 80px;
  }
}

@media screen and (max-width: 600px) {
  .lp-column-corner__cards {
    grid-template-columns: 1fr;
  }
}

.lp-column-corner__more {
  text-align: center;
}

/* 「一覧へ」ボタン: LP 既存の .top-cta-box-content-link と同等スタイル */
.lp-column-corner__more .top-cta-box-content-link {
  display: inline-flex;
  align-items: center;
  gap: 0.8rem;
  padding: 1.4rem 3.2rem;
  background: var(--color-secondary);
  color: #fff;
  font-family: var(--jp-secondary-font);
  font-size: 1.5rem;
  font-weight: 700;
  border-radius: 4px;
  text-decoration: none;
  transition: opacity 0.18s ease;
}

.lp-column-corner__more .top-cta-box-content-link:hover {
  opacity: 0.85;
}

/* ==========================================================================
   コラム一覧ページ (column/index.html.j2 で生成)
   ========================================================================== */

.column-index {
  max-width: 114rem;
  margin: 0 auto;
  padding: 0 3.2rem 8rem;
}

/* カテゴリ絞り込みバー (ヒーロー帯直下) */
.column-filter {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 1.2rem;
  margin-top: 1.6rem;
}

.column-filter__icon {
  display: inline-flex;
  align-items: center;
  color: var(--color-secondary);
}

.column-filter__chip {
  appearance: none;
  background: #fff;
  border: 1px solid var(--color-secondary);
  border-radius: 9999px;
  color: var(--color-secondary);
  font-family: var(--jp-secondary-font);
  font-size: 1.4rem;
  font-weight: 600;
  line-height: 1;
  padding: 0.8rem 1.6rem;
  cursor: pointer;
  transition: opacity 0.2s;
}

.column-filter__chip:hover {
  opacity: 0.7;
}

.column-filter__chip.is-active {
  background: var(--color-secondary);
  color: #fff;
}

/* 絞り込みで隠すカード (.column-card は display:flex のため
   hidden 属性では消えない — 専用 modifier で上書きする) */
.column-card.column-card--filtered-out {
  display: none;
}

.column-pagination.column-pagination--hidden {
  display: none;
}

.column-index .column-card-grid {
  margin-top: 3.2rem;
}

.column-index__empty {
  font-family: var(--jp-secondary-font);
  font-size: 1.5rem;
  color: #6b7280;
  text-align: center;
  margin: 4.8rem 0 0;
}

.column-pagination {
  display: flex;
  justify-content: center;
  gap: 0.8rem;
  margin-top: 4rem;
  list-style: none;
  padding: 0;
}

.column-pagination a,
.column-pagination span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 4rem;
  height: 4rem;
  border: 1px solid #d1d5db;
  border-radius: 4px;
  font-size: 1.4rem;
  color: var(--color-primary);
  text-decoration: none;
  transition: background 0.15s ease, color 0.15s ease;
}

.column-pagination a:hover {
  background: var(--color-secondary);
  color: #fff;
  border-color: var(--color-secondary);
}

.column-pagination .is-current {
  background: var(--color-secondary);
  color: #fff;
  border-color: var(--color-secondary);
}

/* ==========================================================================
   記事詳細ページ
   ========================================================================== */

.column-post {
  max-width: 86rem;
  margin: 0 auto;
  padding: 3.2rem 3.2rem 8rem;
}

/* パンくず */
.column-breadcrumb {
  margin-bottom: 1.6rem;
}

.column-breadcrumb ol {
  display: flex;
  align-items: center;
  gap: 0.8rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

.column-breadcrumb li {
  font-family: var(--jp-secondary-font);
  font-size: 1.2rem;
  color: #6b7280;
  white-space: nowrap;
}

/* 現在記事名 (末尾) は長くても 1 行で省略 */
.column-breadcrumb li:last-child {
  overflow: hidden;
  text-overflow: ellipsis;
}

.column-breadcrumb li + li::before {
  content: "›";
  margin-right: 0.8rem;
  color: #9ca3af;
}

.column-breadcrumb a {
  color: var(--color-secondary);
  text-decoration: none;
}

.column-breadcrumb a:hover {
  text-decoration: underline;
}

/* 記事本体の白パネル */
.column-post__panel {
  background: #fff;
  border-radius: 8px;
  box-shadow: 0 0 24px rgba(22, 55, 110, 0.08);
  padding: 4.8rem 5.6rem 5.6rem;
}

@media screen and (max-width: 960px) {
  .column-post {
    padding: 2.4rem 2rem 6.4rem;
  }

  .column-post__panel {
    padding: 3.2rem 2.4rem 4rem;
  }
}

/* 記事ヘッダー */
.column-post__header {
  position: relative;
  margin-bottom: 3.2rem;
  padding-bottom: 2.4rem;
}

/* ヘッダー下のグラデーション細線 (LP 見出し線のトークン) */
.column-post__header::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  height: 2px;
  background: linear-gradient(270deg, #182f5a 0%, #114999 100%);
  opacity: 0.6;
}

.column-post__categories {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  margin-bottom: 1.6rem;
}

.column-post__title {
  font-family: var(--jp-secondary-font);
  font-size: 3.2rem;
  font-weight: 700;
  line-height: 1.45;
  color: var(--color-primary);
  margin: 0 0 1.6rem;
}

@media screen and (max-width: 960px) {
  .column-post__title {
    font-size: 2.4rem;
  }
}

.column-post__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 1.6rem;
}

.column-post__date {
  font-family: var(--jp-secondary-font);
  font-size: 1.2rem;
  color: #6b7280;
}

.column-post__eyecatch {
  margin: 0 0 3.2rem;
  border-radius: 8px;
  overflow: hidden;
}

.column-post__eyecatch img {
  width: 100%;
  height: auto;
  display: block;
}

/* richEditor 本文 prose */
.column-post__body {
  font-family: var(--jp-secondary-font);
  font-size: 1.6rem;
  line-height: 1.8;
  color: var(--color-primary);
}

/* h2: 薄青帯 + 左紺バーのブロック見出し */
.column-post__body h2 {
  font-size: 2.2rem;
  font-weight: 700;
  margin: 4rem 0 1.6rem;
  padding: 1rem 1.4rem;
  background: #ecf4f9;
  border-left: 4px solid var(--color-secondary);
  border-radius: 0 4px 4px 0;
  color: var(--color-secondary);
}

/* h3: 紺の左バー (h2 より細め) */
.column-post__body h3 {
  font-size: 1.8rem;
  font-weight: 700;
  margin: 3.2rem 0 1.2rem;
  padding-left: 1rem;
  border-left: 3px solid var(--color-secondary);
}

.column-post__body p {
  margin: 0 0 1.6rem;
}

.column-post__body ul,
.column-post__body ol {
  padding-left: 2rem;
  margin: 0 0 1.6rem;
}

.column-post__body li {
  list-style: disc;
  margin-bottom: 0.4rem;
}

.column-post__body ol li {
  list-style: decimal;
}

.column-post__body a {
  color: var(--color-secondary);
  text-decoration: underline;
}

.column-post__body img {
  max-width: 100%;
  height: auto;
  border-radius: 4px;
  margin: 1.6rem 0;
}

.column-post__body blockquote {
  border-left: 4px solid var(--color-secondary);
  padding-left: 1.6rem;
  margin: 1.6rem 0;
  color: #555;
  font-style: italic;
}

/* テーブル (microCMS richEditor 出力) */
.column-post__body table {
  width: 100%;
  border-collapse: collapse;
  margin: 1.6rem 0;
  font-size: 1.4rem;
  line-height: 1.6;
}

.column-post__body th,
.column-post__body td {
  border: 1px solid #dde3ec;
  padding: 0.9rem 1.2rem;
  text-align: left;
  vertical-align: top;
}

.column-post__body th {
  background: var(--color-secondary);
  color: #fff;
  font-weight: 600;
}

.column-post__body tr:nth-child(even) td {
  background: #f6f9fc;
}

/* SP はみ出し対策: テーブル自体を横スクロール領域化 (wrapper なしで効く) */
@media screen and (max-width: 600px) {
  .column-post__body table {
    display: block;
    overflow-x: auto;
  }
}

.column-post__body hr {
  border: none;
  height: 1px;
  background: linear-gradient(270deg, #182f5a 0%, #114999 100%);
  opacity: 0.25;
  margin: 3.2rem 0;
}

.column-post__body pre {
  background: #f3f4f6;
  border-radius: 4px;
  padding: 1.6rem;
  overflow-x: auto;
  font-size: 1.4rem;
  line-height: 1.6;
  margin: 1.6rem 0;
}

.column-post__body code {
  background: #f3f4f6;
  border-radius: 2px;
  padding: 0.2rem 0.4rem;
  font-size: 0.9em;
}

/* ==========================================================================
   関連記事 (詳細ページ下部)
   ========================================================================== */

.column-related {
  margin-top: 4.8rem;
}

.column-related__title {
  font-family: var(--jp-secondary-font);
  font-size: 2rem;
  font-weight: 700;
  color: var(--color-primary);
  margin: 0 0 2.4rem;
  padding-bottom: 1rem;
  position: relative;
}

.column-related__title::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 7.2rem;
  height: 3px;
  background: linear-gradient(270deg, #182f5a 0%, #114999 100%);
}

/* ==========================================================================
   「← コラム一覧へ」戻るボタン
   ========================================================================== */

/* 実 HTML は <footer class="column-post__footer"><a class="column-post__back">
   — ラッパーは __footer、リンクは a 自体が __back (子 a セレクタは効かない) */
.column-post__footer {
  margin-top: 4.8rem;
  text-align: center;
}

.column-post__back {
  display: inline-flex;
  align-items: center;
  gap: 0.8rem;
  padding: 1.4rem 3.2rem;
  background: var(--color-secondary);
  color: #fff;
  font-family: var(--jp-secondary-font);
  font-size: 1.5rem;
  font-weight: 700;
  border-radius: 4px;
  text-decoration: none;
  transition: opacity 0.18s ease;
}

.column-post__back:hover {
  opacity: 0.85;
}

/* ==========================================================================
   ヘッダー内コラムリンク
   ========================================================================== */

/* LP とコラム一覧/詳細 (base.html.j2) の両ヘッダーで共有 — 文字サイズ・
   位置を完全統一する単一定義。右 padding は応募ボタンとの間隔確保 */
.header-link-column {
  font-family: var(--jp-secondary-font);
  font-size: 1.6rem;
  font-weight: 600;
  color: var(--color-primary);
  padding: 0.4rem 2.4rem 0.4rem 0.8rem;
}