excalidraw-box/src/styles.css

:root {
  color-scheme: light;
  font-family:
    Inter,
    ui-sans-serif,
    system-ui,
    -apple-system,
    BlinkMacSystemFont,
    "Segoe UI",
    sans-serif;
}

* {
  box-sizing: border-box;
}

html,
body,
#root {
  margin: 0;
  height: 100%;
}

body {
  background: #f5f5f4;
  color: #18181b;
}

button,
input {
  font: inherit;
}

.app-shell {
  height: 100%;
  color: var(--app-text-color, #18181b);
  --app-sidebar-font-size: 0.875rem;
  --app-island-bg: #ffffff;
  --app-sidebar-bg: #ffffff;
  --app-sidebar-border: #e4e4e7;
  --app-sidebar-shadow: 0 24px 80px rgba(24, 24, 27, 0.22);
  --app-surface-lowest: #ffffff;
  --app-surface-low: #f4f4f5;
  --app-selected-bg: #f4f4f5;
  --app-text-color: #18181b;
  --app-selected-text-color: #18181b;
  --app-disabled-color: #a1a1aa;
  --app-input-bg: #ffffff;
  --app-input-border: #d4d4d8;
  --app-input-color: #18181b;
  --app-button-border: #d4d4d8;
  --app-button-hover-bg: #f4f4f5;
  --app-button-active-bg: #e4e4e7;
  --app-button-active-border: #5b8def;
  --app-overlay-bg: rgba(255, 255, 255, 0.88);
}

.sidebar {
  position: fixed;
  top: 0;
  left: 0;
  z-index: 40;
  display: flex;
  height: 100%;
  width: min(340px, calc(100vw - 32px));
  flex-direction: column;
  border-right: 1px solid var(--app-sidebar-border);
  background: var(--app-sidebar-bg);
  box-shadow: var(--app-sidebar-shadow);
  transform: translateX(calc(-100% - 24px));
  transition:
    transform 180ms ease,
    box-shadow 180ms ease;
}

.sidebar-open {
  transform: translateX(0);
}

.sidebar-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  border-bottom: 1px solid var(--app-sidebar-border);
  padding: 16px;
}

.sidebar-header h1 {
  margin: 0;
  font-size: var(--app-sidebar-font-size);
  font-weight: 600;
  color: var(--app-text-color);
}

.sidebar-actions {
  display: flex;
  align-items: center;
  gap: 8px;
}

.sidebar-actions .primary-button,
.sidebar-actions .icon-button {
  height: 32px;
}

.drawing-list {
  flex: 1;
  overflow: auto;
  padding: 8px;
}

.drawing-item {
  display: flex;
  align-items: center;
  gap: 4px;
  border-radius: 8px;
  padding: 4px 12px;
}

.drawing-item-active {
  background: var(--app-selected-bg);
  color: var(--app-selected-text-color);
}

.drawing-link {
  flex: 1 1 auto;
  min-width: 0;
  border: 0;
  background: transparent;
  color: inherit;
  padding: 8px 0;
  text-align: left;
  font-size: var(--app-sidebar-font-size);
}

.drawing-title,
.title-input {
  display: block;
  width: 100%;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.title-input {
  border: 1px solid var(--app-input-border);
  border-radius: 6px;
  background: var(--app-input-bg);
  color: var(--app-input-color);
  font-size: var(--app-sidebar-font-size);
  padding: 6px 8px;
}

.editor-shell {
  position: relative;
  height: 100%;
}

.app-actions {
  position: fixed;
  right: max(16px, calc(env(safe-area-inset-right) + 16px));
  bottom: calc(max(16px, env(safe-area-inset-bottom)) + 48px);
  z-index: 20;
  display: flex;
}

.app-actions-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.25rem;
  height: 2.25rem;
  padding: 0;
  border: none;
  border-radius: 8px;
  box-shadow: none;
  background: var(--app-surface-low);
  color: var(--app-text-color);
  cursor: pointer;
  transition: background-color 120ms ease, box-shadow 120ms ease;
}

.app-actions-toggle svg {
  width: 1rem;
  height: 1rem;
  overflow: visible;
  transform: translateY(0.5px) scale(1.08);
  transform-origin: center;
}

.primary-button,
.secondary-button,
.icon-button {
  border: 1px solid var(--app-button-border);
  border-radius: 8px;
  background: var(--app-island-bg);
  color: var(--app-text-color);
  transition:
    background-color 120ms ease,
    border-color 120ms ease,
    color 120ms ease,
    box-shadow 120ms ease;
}

.primary-button,
.secondary-button {
  cursor: pointer;
  font-size: var(--app-sidebar-font-size);
  font-weight: 500;
  padding: 8px 12px;
}

.primary-button:hover,
.secondary-button:hover,
.icon-button:hover {
  background: var(--app-button-hover-bg);
}

.primary-button:active,
.secondary-button:active,
.icon-button:active {
  background: var(--app-button-active-bg);
  border-color: var(--app-button-active-border);
}

.secondary-button:disabled {
  cursor: not-allowed;
  opacity: 0.6;
  color: var(--app-disabled-color);
}

.icon-button {
  display: inline-flex;
  flex: 0 0 32px;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  cursor: pointer;
}

.sidebar-backdrop {
  position: fixed;
  inset: 0;
  z-index: 30;
  background: color-mix(in srgb, var(--app-overlay-bg) 72%, #000000);
  opacity: 0;
  pointer-events: none;
  transition: opacity 180ms ease;
}

.sidebar-backdrop-open {
  opacity: 1;
  pointer-events: auto;
}

.editor-frame,
.editor-loading {
  height: 100%;
}

.editor-loading {
  display: grid;
  place-items: center;
  color: var(--app-text-color);
}

.app-actions-toggle:hover {
  background-color: var(--app-button-hover-bg);
}

.app-actions-toggle:active {
  background-color: var(--app-button-active-bg);
  box-shadow: none;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

@media (max-width: 900px) {
  .sidebar {
    width: min(300px, calc(100vw - 20px));
  }

  .app-actions {
    right: max(16px, calc(env(safe-area-inset-right) + 16px));
    bottom: calc(max(16px, env(safe-area-inset-bottom)) + 56px);
  }
}