/* ===================================
   Column Card - 読み物カードコンポーネント
   front-page / archive-column 等で共有
   =================================== */
.column-section {
  background: var(--color-bg-warm);
}

.column-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
  max-width: 1000px;
  margin: 0 auto;
}

.column-card {
  display: flex;
  flex-direction: column;
  background: var(--color-bg);
  border-radius: var(--radius-md);
  overflow: hidden;
  text-decoration: none;
  transition: var(--transition-base);
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.03);
}

.column-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-medium);
}

.column-card-image {
  position: relative;
  aspect-ratio: 16/10;
  background: var(--color-bg-soft);
  overflow: hidden;
}

.column-card-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

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

.column-card-noimage {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text-light);
}

.column-card-cat {
  position: absolute;
  top: 12px;
  left: 12px;
  background: rgba(255, 255, 255, 0.9);
  padding: 6px 12px;
  border-radius: var(--radius-btn);
  font-size: 11px;
  font-weight: 500;
  color: var(--color-primary);
  letter-spacing: 1px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}

.column-card-body {
  padding: 20px;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.column-card-date {
  font-size: 11px;
  color: var(--color-text-light);
  margin-bottom: 8px;
  letter-spacing: 1px;
}

.column-card-title {
  font-family: var(--font-serif);
  font-size: 16px;
  color: var(--color-text);
  line-height: 1.5;
  margin-bottom: 12px;
  transition: color 0.3s;
}

.column-card:hover .column-card-title {
  color: var(--color-accent);
}

.column-card-excerpt {
  font-size: 13px;
  color: var(--color-text-light);
  line-height: 1.8;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
  margin-bottom: 0;
}

/* Responsive */
@media (max-width: 768px) {
  .column-grid {
    grid-template-columns: 1fr;
    gap: var(--space-2);
    padding: 0;
  }

  .column-card {
    flex-direction: row;
    height: 120px;
  }

  .column-card-image {
    width: 120px;
    min-width: 120px;
    height: 100%;
    aspect-ratio: unset;
  }

  .column-card-excerpt {
    display: none;
  }

  .column-card-body {
    padding: 12px 16px;
    justify-content: center;
  }

  .column-card-title {
    margin-bottom: 6px;
    font-size: 14px;
    line-height: 1.5;
  }

  .column-card-cat {
    padding: 3px 8px;
    font-size: 9px;
    top: 6px;
    left: 6px;
  }

  .column-card-date {
    font-size: 10px;
    margin-bottom: 4px;
  }
}