/**
 * topix-news — レスポンシブ（モバイルファースト）
 */

/* タブレット以上: 768px */
@media (min-width: 768px) {
  .content-area__main {
    width: var(--main-width);
  }

  .content-area__sidebar {
    width: var(--sidebar-width);
  }

  .content-area--full .content-area__main {
    width: 100%;
  }

  .single-layout__main {
    width: var(--main-width);
  }

  .single-layout__sidebar {
    width: var(--sidebar-width);
  }

  .header-logo__search {
    max-width: 60%;
  }
}

/* デスクトップ: 1000px */
@media (min-width: 1000px) {
  .site-main {
    padding: 20px 0 40px;
  }
}

/* モバイル: 767px以下の上書き（モバイルファーストのため max-width は補助的に使用） */
@media (max-width: 767px) {
  :root {
    --container-padding: 10px;
  }

  /* 2段stickyの重なりを防ぐ（タブのみ固定） */
  .header-logo.sticky-header {
    position: relative;
    top: auto;
    z-index: auto;
  }

  .header-tabs.sticky-header {
    top: 0;
  }

  .header-logo__inner {
    flex-wrap: wrap;
    gap: 8px;
  }

  .header-logo__brand {
    order: 1;
    max-width: 100%;
  }

  .header-logo__brand img,
  .custom-logo-link img {
    max-width: 100%;
    height: auto;
  }

  .header-logo__search {
    order: 2;
    flex: 1 1 100%;
    max-width: 100%;
    margin-left: 0;
    min-width: 0;
  }

  .search-form__input {
    font-size: 16px;
    min-width: 0;
  }

  .site-logo {
    font-size: 1.25rem;
  }

  .site-logo__news {
    font-size: 1rem;
  }

  .header-tabs__link {
    padding: 10px 12px;
    font-size: 12px;
  }

  .content-area,
  .single-layout {
    gap: 16px;
  }

  .topics {
    padding-left: 12px;
    padding-right: 12px;
  }

  .card-grid {
    grid-template-columns: 1fr;
  }

  .card-grid--expert,
  .card-grid--original {
    grid-template-columns: 1fr;
  }

  .card__title,
  .card-title {
    overflow-wrap: break-word;
    word-break: break-word;
  }

  .related-posts__grid {
    grid-template-columns: 1fr;
  }

  .article-header__title {
    font-size: 1.25rem;
    overflow-wrap: break-word;
    word-break: break-word;
  }

  .article-header__meta {
    gap: 6px 10px;
  }

  .share-buttons__btn {
    flex: 1 1 calc(50% - 4px);
    justify-content: center;
    min-width: 0;
    padding: 8px 10px;
    font-size: 11px;
  }

  .site-footer__inner {
    flex-direction: column;
  }

  .site-footer__brand {
    min-width: 0;
    flex: 1 1 100%;
  }

  .article-ranking--full .ranking__row-list {
    grid-template-columns: 1fr;
  }

  .article-ranking--full .ranking__row-list .ranking__item:only-child {
    grid-column: auto;
  }

  .news-list__link {
    align-items: flex-start;
    gap: 10px;
  }

  .ranking__item {
    align-items: flex-start;
  }

  .ranking__link {
    align-items: flex-start;
    gap: 8px;
  }

  .list-thumb {
    width: 96px;
    height: 72px;
  }

  .article-ranking--full .list-thumb {
    width: 96px;
    height: 72px;
  }

  .trend--numbered .trend__item {
    flex-wrap: wrap;
    gap: 2px 6px;
  }

  .trend--numbered .trend__keyword {
    flex: 1;
    min-width: 0;
    overflow-wrap: break-word;
    word-break: break-word;
  }

  .breadcrumb__list {
    font-size: 11px;
  }
}

/* 小型スマホ: 374px以下 */
@media (max-width: 374px) {
  :root {
    --container-padding: 8px;
  }

  .header-tabs__link {
    padding: 10px 10px;
    font-size: 11px;
  }

  .list-thumb {
    width: 80px;
    height: 60px;
  }

  .article-ranking--full .list-thumb {
    width: 80px;
    height: 60px;
  }

  .news-list__link,
  .ranking__link {
    gap: 8px;
  }

  .share-buttons__btn {
    flex: 1 1 100%;
  }
}

/* タブレット: カード2列 */
@media (min-width: 768px) and (max-width: 999px) {
  .card-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}