:where(diagnostics-core) {
.diagnostics-preview {
  position: relative;
  min-height: 360px;
  border-radius: var(--radius);
  overflow: hidden;
  display: flex;
  align-items: stretch;
  justify-content: center;
  background: color-mix(in oklab, var(--panel) 92%, transparent);
}
.diagnostics-preview:has(.webgpu-unsupported) {
  min-height: 460px;
}

.diagnostics-preview canvas {
  width: 100%;
  height: 100%;
  display: block;
}

.webgpu-unsupported {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  justify-content: center;
  gap: 16px;
  padding: 32px;
  max-width: min(600px, 90%);
  margin: auto;
  border-radius: var(--radius);
  border: 1px dashed color-mix(in oklab, var(--border) 80%, transparent);
  background: color-mix(in oklab, var(--panel) 92%, transparent);
  backdrop-filter: blur(3px);
  text-align: left;
  color: var(--text);
  box-shadow: var(--shadow);
}

.webgpu-unsupported h3 {
  margin: 0;
  font-size: clamp(18px, 1.4vw + 14px, 22px);
}

.webgpu-unsupported p {
  margin: 0;
  color: var(--muted);
}


.webgpu-unsupported ol {
  margin: 0;
  padding-left: 20px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  color: var(--muted);
}

.webgpu-unsupported li {
  line-height: 1.4;
}

.webgpu-unsupported code,
.webgpu-unsupported em {
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-style: normal;
  color: var(--text);
}
}