ext-apps/examples/basic-host/src/index.module.css

/* Theme toggle button */
.themeToggle {
  position: fixed;
  top: 1rem;
  right: 1rem;
  width: 2.5rem;
  height: 2.5rem;
  padding: 0;
  border: 1px solid var(--color-border);
  border-radius: 50%;
  background-color: var(--color-bg-secondary);
  font-size: 1.25rem;
  cursor: pointer;
  z-index: 1000;
  transition: background-color 0.2s, border-color 0.2s, transform 0.1s;

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

  &:active {
    transform: scale(0.95);
  }
}

.callToolPanel, .toolCallInfoPanel {
  margin: 0 auto;
  padding: 1rem;
  border: 1px solid var(--color-border);
  border-radius: 4px;
  background-color: var(--color-bg-secondary);

  * + & {
    margin-top: 1rem;
  }
}

.callToolPanel {
  max-width: 480px;

  form {
    display: flex;
    flex-direction: column;
    gap: 1rem;
  }

  label {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
    font-weight: 600;
  }

  select,
  textarea {
    padding: 0.5rem;
    border: 1px solid var(--color-border);
    border-radius: 4px;
    font-size: inherit;
    background-color: var(--color-bg);
    color: var(--color-text);
  }

  .toolSelect {
    font-family: monospace;
  }

  .toolInput {
    min-height: 6rem;
    font-family: monospace;
    resize: vertical;

    &[aria-invalid="true"] {
      background-color: light-dark(#fee2e2, #7f1d1d);
    }
  }

  button {
    align-self: center;
    min-width: 200px;
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: 4px;
    background-color: var(--color-primary);
    font-size: inherit;
    font-weight: 600;
    color: white;
    cursor: pointer;

    &:hover:not(:disabled) {
      background-color: var(--color-primary-hover);
    }

    &:disabled {
      opacity: 0.5;
      cursor: not-allowed;
    }
  }
}

.toolCallInfoPanel {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  animation: slideDown 0.3s ease-out;
}

@keyframes slideDown {
  from { opacity: 0; transform: translateY(-12px); }
}

.appHeader {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 0.5rem;
  font-size: 1.25rem;
  font-weight: 600;
  position: relative;

  .toolName {
    font-family: monospace;
  }

  .closeButton {
    position: absolute;
    top: 0;
    right: 0;
    width: 1.5rem;
    height: 1.5rem;
    padding: 0;
    border: none;
    border-radius: 4px;
    background: var(--color-border);
    font-size: 1.25rem;
    line-height: 1;
    color: var(--color-text-secondary);
    cursor: pointer;

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

.appIframePanel {
  min-height: 100px;

  iframe {
    width: 100%;
    height: 400px;
    box-sizing: border-box;
    border: 3px dashed var(--color-border);
    border-radius: 4px;
  }

  &.fullscreen {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 1000;
    margin: 0;
    padding: 1rem;
    max-width: none;
    background: white;
    border: none;
    border-radius: 0;
    display: flex;
    flex-direction: column;

    /* Hide collapsible panels in fullscreen */
    .collapsiblePanel {
      display: none;
    }

    iframe {
      flex: 1;
      height: 100%;
      border: none;
      border-radius: 0;
    }
  }
}

.appToolbar {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 0.5rem;

  .collapsiblePanel {
    flex: 1;
    margin: 0;
  }
}

.fullscreenButton {
  width: 32px;
  height: 32px;
  padding: 0;
  border: 1px solid #ccc;
  border-radius: 4px;
  background: #f5f5f5;
  font-size: 1.25rem;
  cursor: pointer;

  &:hover {
    background: #e0e0e0;
  }
}

.collapsiblePanel {
  margin: 0.5rem 0;
  padding: 0.5rem 0.75rem;
  border: 1px solid #e0e0e0;
  border-radius: 4px;
  background-color: #fafafa;
  font-size: 0.875rem;
  cursor: pointer;
  transition: background-color 0.15s;

  &:hover {
    background-color: #f0f0f0;
  }
}

.collapsibleHeader {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.collapsibleLabel {
  font-weight: 600;
  color: #555;
}

.collapsibleSize {
  color: #888;
  font-size: 0.75rem;
}

.collapsibleToggle {
  margin-left: auto;
  color: #888;
  font-size: 0.75rem;
}

.collapsiblePreview {
  margin-top: 0.25rem;
  color: #666;
  font-family: monospace;
  font-size: 0.8rem;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.collapsibleFull {
  margin: 0.5rem 0 0;
  padding: 0.5rem;
  border-radius: 4px;
  background-color: #f5f5f5;
  font-family: monospace;
  font-size: 0.8rem;
  white-space: pre-wrap;
  word-break: break-word;
  max-height: 200px;
  overflow: auto;
}

.error {
  padding: 1.5rem;
  background-color: var(--color-bg-secondary);
  color: light-dark(#dc2626, #f87171);
}