:root {
  --fabric-color-primary-text: #e5e7eb;
  --fabric-color-primary-bg: #111827;
  --fabric-color-secondary-text: #9ca3af;
  --fabric-color-secondary-bg: #1f2937;
  --fabric-color-accent-text: #818cf8;
  --fabric-color-accent-bg: #312e81;
  --fabric-font-heading: inherit;
  --fabric-font-body: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --fabric-font-code: ui-monospace, monospace;
  --fabric-page-width: 42rem;
  --fabric-content-radius: 0.375rem;
}

body {
  max-width: var(--fabric-page-width);
  margin: 2rem auto;
  padding: 0 1rem;
  font-family: var(--fabric-font-body);
  color: var(--fabric-color-primary-text);
  background: var(--fabric-color-primary-bg);
  line-height: 1.6;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--fabric-font-heading);
}

nav {
  margin-bottom: 2rem;
  font-size: 0.875rem;
}

nav a {
  margin-right: 1rem;
}

a {
  color: var(--fabric-color-accent-text);
}

pre {
  background: var(--fabric-color-secondary-bg);
  padding: 1rem;
  overflow-x: auto;
  border-radius: var(--fabric-content-radius);
}

code {
  font-family: var(--fabric-font-code);
}

/* Alerts / Admonitions */
.markdown-alert {
  padding: 0.75rem 1rem;
  margin-bottom: 1rem;
  border-left: 4px solid;
  border-radius: var(--fabric-content-radius);
  background: var(--fabric-color-secondary-bg);
}

.markdown-alert-note {
  border-left-color: #3b82f6;
}

.markdown-alert-tip {
  border-left-color: #22c55e;
}

.markdown-alert-important {
  border-left-color: #8b5cf6;
}

.markdown-alert-warning {
  border-left-color: #eab308;
}

.markdown-alert-caution {
  border-left-color: #ef4444;
}

.markdown-alert-title {
  font-weight: 600;
  margin-bottom: 0.25rem;
}

/* Block directives */
.info,
.warning,
.tip,
.danger {
  padding: 0.75rem 1rem;
  margin-bottom: 1rem;
  border-left: 4px solid;
  border-radius: var(--fabric-content-radius);
  background: var(--fabric-color-secondary-bg);
}

.info {
  border-left-color: #3b82f6;
}

.tip {
  border-left-color: #22c55e;
}

.warning {
  border-left-color: #eab308;
}

.danger {
  border-left-color: #ef4444;
}