/* ============================================================
   /changelog — page-local layout only.

   Chrome, container/content, tokens, the FAQ and the shared link treatment
   come from `style/marketing.css`. The duplicated header nav, footer,
   legal and container/content blocks were removed.
   ============================================================ */

[data-page="changelog"] {
  [data-component="changelog-hero"] {
    padding-bottom: 1.5rem;
    border-bottom: 1px solid var(--mk-border-muted);

    h1 {
      font-size: var(--mk-text-page);
      font-weight: 620;
      letter-spacing: -0.024em;
      line-height: 1.15;
      color: #fff;
      margin-bottom: 8px;
    }

    p {
      margin: 0;
      color: var(--mk-text-2);
    }
  }

  [data-component="releases"] {
    display: flex;
    flex-direction: column;
  }

  [data-component="release"] {
    display: grid;
    grid-template-columns: 180px 1fr;
    gap: 3rem;
    padding: 2rem 0;
    border-bottom: 1px solid var(--mk-border-muted);

    @media (max-width: 60rem) {
      grid-template-columns: 1fr;
      gap: 1rem;
    }

    &:first-child {
      padding-top: 0;
    }

    &:last-child {
      border-bottom: none;
    }

    header {
      position: sticky;
      top: 80px;
      align-self: start;
      display: flex;
      flex-direction: column;
      gap: 4px;
      padding: 44px 0 8px;
      background: var(--mk-bg);

      @media (max-width: 60rem) {
        position: static;
        flex-direction: row;
        align-items: center;
        gap: 12px;
        padding: 0;
      }

      [data-slot="version"] a {
        font-weight: 600;
        color: #fff;
        text-decoration: none;

        &:hover {
          text-decoration: underline;
          text-underline-offset: 2px;
          text-decoration-thickness: 1px;
        }
      }

      /* 镜像链接：与版本号并排但明显次级——国内访问 github.com 困难，
         给它一个可达的替代入口，同时不让它看起来像第二个版本号。
         选择器必须比上面的 `[data-slot="version"] a`（0,1,1）更具体，
         否则那些属性会被它覆盖。 */
      [data-slot="version"] [data-slot="mirror"] {
        margin-left: 8px;
        font-weight: 400;
        font-size: 0.8125rem;
        color: var(--mk-text-3);
        text-decoration: none;

        &:hover {
          color: var(--mk-text);
          text-decoration: underline;
          text-underline-offset: 2px;
          text-decoration-thickness: 1px;
        }
      }

      time {
        color: var(--mk-text-3);
        font-size: 0.875rem;
      }
    }

    [data-slot="content"] {
      display: flex;
      flex-direction: column;
      gap: 1.5rem;
    }

    [data-component="section"],
    [data-component="collapsible-section"] {
      h3 {
        font-size: var(--mk-text-sm);
        font-weight: 600;
        color: var(--mk-text);
        margin-bottom: 6px;
      }

      ul {
        display: flex;
        flex-direction: column;
        gap: 4px;
        list-style: none;
        margin: 0;
        padding-left: 16px;

        li {
          position: relative;
          padding-left: 12px;
          font-size: var(--mk-text-sm);
          line-height: 1.6;
          color: var(--mk-text-2);

          &::before {
            content: "-";
            position: absolute;
            left: 0;
            color: var(--mk-text-3);
          }

          [data-slot="author"] {
            margin-left: 4px;
            font-size: var(--mk-text-xs);
            color: var(--mk-text-3);
            text-decoration: none;

            &:hover {
              text-decoration: underline;
              text-underline-offset: 2px;
              text-decoration-thickness: 1px;
            }
          }
        }
      }
    }

    [data-component="contributors"] {
      padding-top: 0.5rem;
      font-size: var(--mk-text-sm);
      color: var(--mk-text-3);

      span {
        color: var(--mk-text-3);
      }

      a {
        color: var(--mk-text-2);
        text-decoration: none;

        &:hover {
          text-decoration: underline;
          text-underline-offset: 2px;
          text-decoration-thickness: 1px;
        }
      }
    }

    [data-component="highlights"] {
      display: flex;
      flex-direction: column;
      gap: 3rem;
      margin-bottom: 0.75rem;
    }

    [data-component="collapsible-sections"] {
      display: flex;
      flex-direction: column;
    }

    [data-component="collapsible-section"] {
      ul {
        padding-bottom: 8px;
      }

      [data-slot="toggle"] {
        display: flex;
        align-items: center;
        gap: 6px;
        padding: 6px 0;
        background: none;
        border: none;
        cursor: pointer;
        font-family: inherit;
        font-size: var(--mk-text-sm);
        font-weight: 600;
        color: var(--mk-text-3);

        &:hover {
          color: var(--mk-text);
        }

        [data-slot="icon"] {
          font-size: 10px;
        }
      }
    }

    [data-component="highlight"] {
      h4 {
        font-size: 0.875rem;
        font-weight: 600;
        color: #fff;
        margin-bottom: 8px;
      }

      hr {
        border: none;
        border-top: 1px solid var(--mk-border-muted);
        margin-bottom: 16px;
      }

      [data-slot="highlight-item"] {
        margin-bottom: 48px;

        &:last-child {
          margin-bottom: 0;
        }

        p[data-slot="title"] {
          font-size: 1rem;
          font-weight: 600;
          color: var(--mk-text);
          margin-bottom: 4px;
        }

        p {
          font-size: 0.875rem;
          margin-bottom: 12px;
          color: var(--mk-text-2);
        }
      }

      img,
      video {
        max-width: 100%;
        height: auto;
        border-radius: var(--mk-radius-md);
      }
    }
  }
}