excalidraw/src/css/styles.scss

@import "./variables.module";
@import "./theme";

:root {
  --zIndex-canvas: 1;
  --zIndex-wysiwyg: 2;
  --zIndex-layerUI: 3;
}

.excalidraw {
  position: relative;
  overflow: hidden;
  color: var(--text-primary-color);
  display: flex;
  top: 0;
  bottom: 0;
  left: 0;
  right: 0;
  height: 100%;
  width: 100%;

  button {
    cursor: pointer;
  }

  &:focus {
    outline: none;
  }

  // serves 2 purposes:
  // 1. prevent selecting text outside the component when double-clicking or
  //    dragging inside it (e.g. on canvas)
  // 2. prevent selecting UI, both from the inside, and from outside the
  //    component (e.g. if you select text in a sidebar)
  user-select: none;

  a {
    font-weight: 500;
    text-decoration: none;
    color: var(--link-color);

    &:hover {
      text-decoration: underline;
    }
  }

  canvas {
    touch-action: none;

    // following props improve blurriness at certain devicePixelRatios.
    // AFAIK it doesn't affect export (in fact, export seems sharp either way).

    image-rendering: pixelated; // chromium
    // NOTE: must be declared *after* the above
    image-rendering: -moz-crisp-edges; // FF

    z-index: var(--zIndex-canvas);

    // Remove the main canvas from document flow to avoid resizeObserver
    // feedback loop (see https://github.com/excalidraw/excalidraw/pull/3379)
  }

  &__canvas {
    position: absolute;
  }

  &.theme--dark {
    // The percentage is inspired by
    // https://material.io/design/color/dark-theme.html#properties, which
    // recommends surface color of #121212, 93% yields #111111 for #FFF

    canvas {
      filter: var(--theme-filter);
    }
  }

  .FixedSideContainer {
    padding-top: var(--sat, 0);
    padding-right: var(--sar, 0);
    padding-bottom: var(--sab, 0);
    padding-left: var(--sal, 0);
  }

  .panelRow {
    display: flex;
    justify-content: space-between;
  }

  .panelColumn {
    display: flex;
    flex-direction: column;
    row-gap: 0.75rem;

    h3,
    legend,
    .control-label {
      margin: 0;
      margin-bottom: 0.25rem;
      font-size: 0.75rem;
      color: var(--text-primary-color);
      font-weight: normal;
      display: block;
    }

    .control-label input {
      display: block;
      width: 100%;
    }

    legend {
      padding: 0;
    }

    .iconSelectList {
      flex-wrap: wrap;
      position: relative;
    }

    .buttonList {
      flex-wrap: wrap;
      display: flex;
      column-gap: 0.5rem;
      row-gap: 0.5rem;

      label {
        font-size: 0.75rem;
      }

      input[type="radio"],
      input[type="button"] {
        opacity: 0;
        position: absolute;
        pointer-events: none;
      }

      .iconRow {
        margin-top: 8px;
      }
    }

    fieldset {
      margin: 0;
      padding: 0;
      border: none;
    }
  }

  .divider {
    width: 1px;
    background-color: $oc-gray-2;
    margin: 1px;
  }

  .buttonList label:focus-within,
  input:focus-visible {
    outline: transparent;
    box-shadow: 0 0 0 2px var(--focus-highlight-color);
  }

  .buttonList {
    .ToolIcon__icon {
      all: unset !important;
      display: flex !important;
    }

    button {
      background-color: transparent;
    }

    label,
    button,
    .zIndexButton {
      @include outlineButtonStyles;

      padding: 0;

      svg {
        width: var(--default-icon-size);
        height: var(--default-icon-size);
      }
    }
  }

  .App-top-bar {
    z-index: var(--zIndex-layerUI);
    display: flex;
    flex-direction: column;
    align-items: center;
  }

  .App-bottom-bar {
    position: absolute;
    top: 0;
    bottom: 0;
    left: 0;
    right: 0;
    --bar-padding: calc(4 * var(--space-factor));
    padding-top: #{"max(var(--bar-padding), var(--sat,0))"};
    padding-right: var(--sar, 0);
    padding-bottom: var(--sab, 0);
    padding-left: var(--sal, 0);
    z-index: 4;
    display: flex;
    align-items: flex-end;
    pointer-events: none;

    > .Island {
      width: 100%;
      max-width: 100%;
      min-width: 100%;
      box-sizing: border-box;
      max-height: 100%;
      display: flex;
      flex-direction: column;
      pointer-events: initial;

      .panelColumn {
        padding: 8px 8px 0 8px;
      }
    }
  }

  .App-toolbar {
    width: 100%;

    .eraser {
      &.ToolIcon:hover {
        --icon-fill-color: #fff;
        --keybinding-color: #fff;
      }
      &.active {
        background-color: var(--color-primary);
      }
    }
  }

  .App-toolbar-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 8px;
  }

  .App-mobile-menu {
    width: 100%;
    overflow-x: visible;
    overflow-y: auto;
    box-sizing: border-box;
    margin-bottom: var(--bar-padding);
  }

  .App-menu {
    display: grid;
    color: var(--icon-fill-color);
  }

  .shapes-section {
    display: flex;
    justify-content: center;
    pointer-events: none !important;

    & > * {
      pointer-events: all;
    }
  }

  .App-menu_top {
    grid-template-columns: 1fr 2fr 1fr;
    grid-gap: 2rem;
    align-items: flex-start;
    cursor: default;
    pointer-events: none !important;

    @media (min-width: 1536px) {
      grid-template-columns: 1fr 1fr 1fr;
      grid-gap: 3rem;
    }
  }

  .layer-ui__wrapper:not(.disable-pointerEvents) .App-menu_top > * {
    pointer-events: all;
  }

  .App-menu_top > *:first-child {
    justify-self: flex-start;
  }

  .App-menu_top > *:last-child {
    justify-self: flex-end;
  }

  .App-menu_bottom {
    position: absolute;
    bottom: 1rem;
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    cursor: default;
    pointer-events: none !important;
    box-sizing: border-box;
    padding: 0 1rem;

    &--transition-left {
      section {
        width: 185px;
      }
    }

    section {
      display: flex;
    }
  }

  .App-menu_bottom > *:first-child {
    justify-self: flex-start;
  }

  .App-menu_bottom > *:last-child {
    justify-self: flex-end;
  }

  .App-menu_left {
    grid-template-rows: 1fr auto 1fr;
    height: 100%;
  }

  .App-menu_right {
    grid-template-rows: 1fr;
    height: 100%;
  }

  .App-menu__left {
    overflow-y: auto;
    padding: 0.75rem;
    width: 202px;
    box-sizing: border-box;
    position: absolute;
  }

  .dropdown-select {
    height: 1.5rem;
    padding: 0;
    padding-inline-start: 0.5rem;
    padding-inline-end: 1.5rem;
    color: var(--icon-fill-color);
    background-color: var(--button-gray-1);
    border-radius: var(--space-factor);
    border: 1px solid var(--button-gray-2);
    font-size: 0.8rem;
    outline: none;
    appearance: none;
    background-image: var(--dropdown-icon);
    background-repeat: no-repeat;
    background-position: right 0.7rem top 50%, 0 0;

    :root[dir="rtl"] & {
      background-position: left 0.7rem top 50%, 0 0;
    }

    background-size: 0.65em auto, 100%;

    &:focus {
      box-shadow: 0 0 0 2px var(--focus-highlight-color);
    }

    &:hover {
      background-color: var(--button-gray-2);
    }

    &:active {
      background-color: var(--button-gray-2);
    }

    &__language {
      height: 2rem;
      background-color: var(--island-bg-color);
      border-color: var(--default-border-color) !important;
      cursor: pointer;

      &:hover {
        background-color: var(--island-bg-color);
      }
    }
  }

  .disable-zen-mode {
    border-radius: var(--border-radius-lg);
    background-color: var(--color-gray-20);
    border: 1px solid var(--color-gray-30);
    padding: 10px 20px;

    &:hover {
      background-color: var(--color-gray-30);
    }
  }

  .scroll-back-to-content {
    border-radius: var(--border-radius-lg);
    background-color: var(--island-bg-color);
    color: var(--icon-fill-color);

    border: 1px solid var(--default-border-color);
    padding: 10px 20px;
    position: absolute;
    left: 50%;
    bottom: 30px;
    transform: translateX(-50%);
    pointer-events: all;

    &:hover {
      background-color: var(--button-hover-bg);
    }

    &:active {
      border: 1px solid var(--color-primary-darkest);
    }
  }

  .help-icon {
    @include outlineButtonStyles;
    background-color: var(--island-bg-color);
    width: var(--lg-button-size);
    height: var(--lg-button-size);

    svg {
      width: var(--lg-icon-size);
      height: var(--lg-icon-size);
    }
  }

  .reset-zoom-button {
    font-family: var(--ui-font);
  }

  .finalize-button {
    display: grid;
    grid-auto-flow: column;
    gap: 0.4em;
    margin-top: auto;
    margin-bottom: auto;
    margin-inline-start: 0.6em;
  }

  .undo-redo-buttons,
  .eraser-buttons {
    display: grid;
    grid-auto-flow: column;
    margin-top: auto;
    margin-bottom: auto;
    margin-inline-start: 0.6em;
  }

  @include isMobile {
    aside {
      display: none;
    }
    .scroll-back-to-content {
      bottom: calc(80px + var(--sab, 0));
      z-index: -1;
    }
  }

  .rtl-mirror {
    :root[dir="rtl"] & {
      transform: scaleX(-1);
    }
  }

  .zen-mode-visibility {
    visibility: visible;
    opacity: 1;
    height: auto;
    width: auto;
    transition: opacity 0.5s;

    &.zen-mode-visibility--hidden {
      visibility: hidden;
      opacity: 0;
      height: 0;
      width: 0;
      transition: opacity 0.5s;
    }
  }

  .disable-pointerEvents {
    pointer-events: none !important;
  }

  &.excalidraw--view-mode {
    .App-menu {
      display: flex;
      justify-content: space-between;
    }
  }

  input[type="text"],
  textarea:not(.excalidraw-wysiwyg) {
    color: var(--text-primary-color);
    border: 1.5px solid var(--input-border-color);
    padding: 0.75rem;
    white-space: nowrap;
    border-radius: var(--space-factor);
    background-color: var(--input-bg-color);

    &:not(:focus) {
      &:hover {
        background-color: var(--input-hover-bg-color);
      }
    }

    &:focus {
      outline: none;
      box-shadow: 0 0 0 2px var(--focus-highlight-color);
    }
  }

  @media print {
    .App-bottom-bar,
    .FixedSideContainer,
    .layer-ui__wrapper {
      display: none;
    }
  }

  // use custom, minimalistic scrollbar
  // (doesn't work in Firefox)
  ::-webkit-scrollbar {
    width: 3px;
  }

  ::-webkit-scrollbar-thumb {
    background: var(--scrollbar-thumb);
    border-radius: 10px;
  }
  ::-webkit-scrollbar-thumb:hover {
    background: var(--scrollbar-thumb-hover);
  }
  ::-webkit-scrollbar-thumb:active {
    background: var(--scrollbar-thumb);
  }

  .mobile-misc-tools-container {
    position: absolute;
    top: calc(5rem - var(--editor-container-padding));
    right: calc(var(--editor-container-padding) * -1);
    display: flex;
    flex-direction: column;
    border: 1px solid var(--sidebar-border-color);
    border-top-left-radius: var(--border-radius-lg);
    border-bottom-left-radius: var(--border-radius-lg);
    border-right: 0;
    overflow: hidden;

    background-color: var(--island-bg-color);

    .ToolIcon__icon {
      border-radius: 0;
    }

    .library-button {
      border: 0;
    }
  }

  .App-toolbar--mobile {
    overflow-x: hidden;
    max-width: 100vw;

    .ToolIcon__keybinding {
      display: none;
    }
  }
  .UserList-Wrapper {
    margin: 0;
    padding: 0;
    border: none;
    text-align: left;

    legend {
      display: block;
      font-size: 0.75rem;
      font-weight: 400;
      margin: 0 0 0.25rem;
      padding: 0;
    }
  }
}

.ErrorSplash.excalidraw {
  min-height: 100vh;
  padding: 20px 0;
  overflow: auto;
  display: flex;
  align-items: center;
  justify-content: center;
  user-select: text;

  .ErrorSplash-messageContainer {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;

    padding: 40px;
    background-color: $oc-red-1;
    border: 3px solid $oc-red-9;
  }

  .ErrorSplash-paragraph {
    margin: 15px 0;
    max-width: 600px;

    &.align-center {
      text-align: center;
    }
  }

  .bigger,
  .bigger button {
    font-size: 1.1em;
  }

  .smaller,
  .smaller button {
    font-size: 0.9em;
  }

  .ErrorSplash-details {
    display: flex;
    flex-direction: column;
    align-items: flex-start;

    textarea {
      width: 100%;
      margin: 10px 0;
      font-family: "Cascadia";
      font-size: 0.8em;
    }
  }
}