opencode/packages/ui/src/components/session-timeline.css

[data-component="session-timeline"] {
  /* flex: 1; */
  min-height: 0;
  display: flex;
  align-items: flex-start;
  justify-content: flex-start;

  [data-slot="session-timeline-timeline-list"] {
    margin-right: 32px;
    flex-shrink: 0;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    margin-top: 12px;

    &[data-expanded="true"] {
      position: absolute;
      right: 100%;
      width: 240px;
      margin-top: 12px;

      @media (min-width: 80rem) {
        gap: 8px;
        margin-top: 4px;
      }
    }
  }

  [data-slot="session-timeline-timeline-item"] {
    display: flex;
    align-items: center;
    align-self: stretch;
    justify-content: flex-end;

    &[data-expanded="true"] {
      @media (min-width: 80rem) {
        justify-content: flex-start;
      }
    }
  }

  [data-slot="session-timeline-tick-button"] {
    display: flex;
    align-items: center;
    justify-content: flex-start;
    height: 8px;
    width: 32px;
    margin-right: -12px;
    cursor: pointer;
    border: none;
    background: none;
    padding: 0;

    &[data-active="true"] [data-slot="session-timeline-tick-line"] {
      background-color: var(--icon-strong-base);
      width: 100%;
    }

    &[data-expanded="true"] {
      @media (min-width: 80rem) {
        display: none;
      }
    }
  }

  [data-slot="session-timeline-tick-line"] {
    height: 1px;
    width: 20px;
    background-color: var(--icon-base);
    transition:
      width 0.2s,
      background-color 0.2s;
  }

  [data-slot="session-timeline-tick-button"]:hover [data-slot="session-timeline-tick-line"] {
    width: 100%;
    background-color: var(--icon-strong-base);
  }

  [data-slot="session-timeline-message-button"] {
    display: none;
    align-items: center;
    align-self: stretch;
    width: 100%;
    column-gap: 8px;
    cursor: default;
    border: none;
    background: none;
    padding: 0;

    &[data-expanded="true"] {
      @media (min-width: 80rem) {
        display: flex;
      }
    }
  }

  [data-slot="session-timeline-message-title-preview"] {
    font-size: 14px; /* text-14-regular */
    color: var(--text-weak);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    min-width: 0;
    text-align: left;

    &[data-active="true"] {
      color: var(--text-strong);
    }
  }

  [data-slot="session-timeline-timeline-item"]:hover [data-slot="session-timeline-message-title-preview"] {
    color: var(--text-base);
  }

  [data-slot="session-timeline-content"] {
    flex-grow: 1;
    width: 100%;
    height: 100%;
    min-width: 0;
    overflow-y: auto;
    scrollbar-width: none;
  }

  [data-slot="session-timeline-content"]::-webkit-scrollbar {
    display: none;
  }

  [data-slot="session-timeline-message-container"] {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    align-self: stretch;
    gap: 32px;
  }

  [data-slot="session-timeline-message-header"] {
    display: flex;
    align-items: center;
    gap: 8px;
    align-self: stretch;
    position: sticky;
    top: 0;
    background-color: var(--background-stronger);
    z-index: 20;
    height: 32px;
  }

  [data-slot="session-timeline-message-content"] {
    margin-top: -24px;
  }

  [data-slot="session-timeline-message-title"] {
    width: 100%;
    font-size: 14px; /* text-14-medium */
    font-weight: 500;
    color: var(--text-strong);
    overflow: hidden;
    text-overflow: ellipsis;
    min-width: 0;
    white-space: nowrap;
  }

  [data-slot="session-timeline-message-title"] h1 {
    overflow: hidden;
    text-overflow: ellipsis;
    min-width: 0;
    white-space: nowrap;
    font-size: inherit;
    font-weight: inherit;
  }

  [data-slot="session-timeline-typewriter"] {
    overflow: hidden;
    text-overflow: ellipsis;
    min-width: 0;
    white-space: nowrap;
  }

  [data-slot="session-timeline-summary-section"] {
    width: 100%;
    display: flex;
    flex-direction: column;
    gap: 24px;
    align-items: flex-start;
    align-self: stretch;
  }

  [data-slot="session-timeline-summary-header"] {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 4px;
    align-self: stretch;
  }

  [data-slot="session-timeline-summary-title"] {
    font-size: 12px; /* text-12-medium */
    font-weight: 500;
    color: var(--text-weak);
  }

  [data-slot="session-timeline-markdown"] {
    &[data-diffs="true"] {
      font-size: 14px; /* text-14-regular */
    }

    &[data-fade="true"] > * {
      animation: fade-up-text 0.3s ease-out forwards;
    }
  }

  [data-slot="session-timeline-accordion"] {
    width: 100%;
  }

  [data-component="sticky-accordion-header"] {
    top: 40px;

    &[data-expanded]::before {
      top: -40px;
    }
  }

  [data-slot="session-timeline-accordion-trigger-content"] {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    gap: 20px;
  }

  [data-slot="session-timeline-file-info"] {
    flex-grow: 1;
    display: flex;
    align-items: center;
    gap: 20px;
    min-width: 0;
  }

  [data-slot="session-timeline-file-icon"] {
    flex-shrink: 0;
    width: 16px;
    height: 16px;
  }

  [data-slot="session-timeline-file-path"] {
    display: flex;
    flex-grow: 1;
    min-width: 0;
  }

  [data-slot="session-timeline-directory"] {
    color: var(--text-base);
    text-overflow: ellipsis;
    overflow: hidden;
    white-space: nowrap;
    direction: rtl;
    text-align: left;
  }

  [data-slot="session-timeline-filename"] {
    color: var(--text-strong);
    flex-shrink: 0;
  }

  [data-slot="session-timeline-accordion-actions"] {
    flex-shrink: 0;
    display: flex;
    gap: 16px;
    align-items: center;
    justify-content: flex-end;
  }

  [data-slot="session-timeline-accordion-content"] {
    max-height: 240px; /* max-h-60 */
    overflow-y: auto;
    scrollbar-width: none;
  }

  [data-slot="session-timeline-accordion-content"]::-webkit-scrollbar {
    display: none;
  }

  [data-slot="session-timeline-response-section"] {
    width: 100%;
  }

  [data-slot="session-timeline-collapsible-trigger-content"] {
    color: var(--text-weak);
    cursor: pointer;
    background: none;
    border: none;
    padding: 0;
    display: flex;
    align-items: center;

    &:hover {
      color: var(--text-strong);
    }
    display: flex;
    align-items: center;
    gap: 4px;
    align-self: stretch;
  }

  [data-slot="session-timeline-details-text"] {
    font-size: 12px; /* text-12-medium */
    font-weight: 500;
  }

  .error-card {
    color: var(--text-on-critical-base);
  }

  [data-slot="session-timeline-collapsible-content-inner"] {
    width: 100%;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    align-self: stretch;
    gap: 12px;
  }
}