/* ==============================================
   wa-cards.css — 記事カード・グリッドレイアウト
   ============================================== */

/* ==============================================
   記事グリッド
   ============================================== */
.wa-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px 24px;
}

.wa-grid--2col {
  grid-template-columns: repeat(2, 1fr);
}

.wa-grid--4col {
  grid-template-columns: repeat(4, 1fr);
}

/* ==============================================
   記事カード
   ============================================== */
.wa-card {
  display: flex;
  flex-direction: column;
  background: var(--color-bg);
  overflow: hidden;
  text-decoration: none;
  color: inherit;
  cursor: pointer;
}

.wa-card:hover {
  color: inherit;
}

/* カード画像ラッパー */
.wa-card__image {
  position: relative;
  overflow: hidden;
  aspect-ratio: 4 / 3;
  background: var(--color-surface);
}

.wa-card__image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}

.wa-card:hover .wa-card__image img {
  transform: scale(1.03);
}

/* カード本文 */
.wa-card__body {
  padding: 16px 4px 24px;
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.wa-card__category {
  font-size: 0.7rem;
  font-weight: 400;
  color: var(--color-primary);
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.wa-card__title {
  font-family: var(--font-serif);
  font-size: 0.975rem;
  font-weight: 500;
  line-height: 1.7;
  letter-spacing: 0.06em;
  color: var(--color-text);
  margin: 0;
  flex: 1;
  /* 3行で省略 */
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.wa-card:hover .wa-card__title {
  color: var(--color-primary);
}

.wa-card__meta {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-top: auto;
}

.wa-card__date {
  font-size: 0.7rem;
  color: var(--color-muted);
  letter-spacing: 0.06em;
}

.wa-card__reading-time {
  font-size: 0.7rem;
  color: var(--color-muted);
  letter-spacing: 0.04em;
}

/* ==============================================
   カテゴリーバナー
   ============================================== */
.wa-cat-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}

.wa-cat-banner {
  position: relative;
  overflow: hidden;
  aspect-ratio: 3 / 2;
  border-radius: var(--radius-sm);
  text-decoration: none;
  display: block;
}

.wa-cat-banner img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}

.wa-cat-banner:hover img {
  transform: scale(1.04);
}

.wa-cat-banner__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to bottom,
    rgba(44, 42, 38, 0.1) 0%,
    rgba(44, 42, 38, 0.55) 100%
  );
  transition: background 0.3s ease;
}

.wa-cat-banner:hover .wa-cat-banner__overlay {
  background: linear-gradient(
    to bottom,
    rgba(44, 42, 38, 0.2) 0%,
    rgba(44, 42, 38, 0.7) 100%
  );
}

.wa-cat-banner__label {
  position: absolute;
  bottom: 16px;
  left: 16px;
  right: 16px;
}

.wa-cat-banner__name {
  display: block;
  font-family: var(--font-serif);
  font-size: 1rem;
  font-weight: 500;
  color: #fff;
  letter-spacing: 0.12em;
  text-shadow: 0 1px 4px rgba(0,0,0,0.3);
}

.wa-cat-banner__name-en {
  display: block;
  font-family: var(--font-latin);
  font-style: italic;
  font-size: 0.65rem;
  color: rgba(255,255,255,0.75);
  letter-spacing: 0.18em;
  margin-top: 2px;
}

/* ==============================================
   YouTube 動画セクション
   ============================================== */
.wa-youtube-section {
  overflow: hidden;
}

.wa-youtube-scroll {
  display: flex;
  gap: 20px;
  overflow-x: auto;
  padding-bottom: 16px;
  scroll-snap-type: x mandatory;
  -webkit-overflow-scrolling: touch;
  /* スクロールバーを細く */
  scrollbar-width: thin;
  scrollbar-color: var(--color-border) transparent;
}

.wa-youtube-scroll::-webkit-scrollbar {
  height: 4px;
}

.wa-youtube-scroll::-webkit-scrollbar-track {
  background: transparent;
}

.wa-youtube-scroll::-webkit-scrollbar-thumb {
  background: var(--color-border);
  border-radius: 2px;
}

.wa-yt-card {
  flex: 0 0 calc((100% - 40px) / 3);
  scroll-snap-align: start;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.wa-yt-thumb {
  position: relative;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background: var(--color-surface);
}

.wa-yt-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.3s ease;
}

.wa-yt-card:hover .wa-yt-thumb img {
  transform: scale(1.03);
}

.wa-yt-play {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 44px;
  height: 44px;
  background: rgba(44, 42, 38, 0.65);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 1rem;
  pointer-events: none;
  padding-left: 3px; /* ▶ の視覚的中心補正 */
}

.wa-yt-title {
  font-family: var(--font-serif);
  font-size: 0.875rem;
  font-weight: 400;
  line-height: 1.6;
  color: var(--color-text);
  margin: 0;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.wa-yt-link {
  display: inline-block;
  font-size: 0.75rem;
  color: var(--color-primary);
  border-bottom: 1px solid var(--color-border);
  padding-bottom: 2px;
  align-self: flex-start;
  transition: color 0.2s, border-color 0.2s;
}

.wa-yt-link:hover {
  color: var(--color-accent);
  border-color: var(--color-accent);
}

/* ==============================================
   レスポンシブ
   ============================================== */
@media (max-width: 1023px) {
  .wa-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 24px 20px;
  }

  .wa-cat-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
  }

  .wa-yt-card {
    flex: 0 0 calc((100% - 20px) / 2);
  }
}

@media (max-width: 767px) {
  .wa-grid {
    grid-template-columns: 1fr;
    gap: 32px 0;
  }

  .wa-grid--2col {
    grid-template-columns: 1fr;
  }

  .wa-cat-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .wa-yt-card {
    flex: 0 0 80vw;
  }

  .wa-card__image {
    aspect-ratio: 16 / 9;
  }
}