/* =============================================================================
 * Tutorials Logic - Internal Utilities
 * Low-level helpers for repeated layout, spacing, visibility, and text patterns.
 * ============================================================================= */

.tl-flex { display: flex; }
.tl-grid { display: grid; }
.tl-center { display: grid; place-items: center; }
.tl-items-center { align-items: center; }
.tl-justify-center { justify-content: center; }
.tl-justify-between { justify-content: space-between; }
.tl-flex-wrap { flex-wrap: wrap; }
.tl-hidden { display: none !important; }
.tl-visually-hidden,
.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;
}

.tl-text-left { text-align: left; }
.tl-text-center { text-align: center; }
.tl-text-right { text-align: right; }

.tl-m-0 { margin: 0; }
.tl-mb-xs { margin-bottom: var(--tl-space-1); }
.tl-mb-sm { margin-bottom: var(--tl-space-2); }
.tl-mb-md { margin-bottom: var(--tl-space-4); }
.tl-mb-lg { margin-bottom: var(--tl-space-6); }
.tl-mb-xl { margin-bottom: var(--tl-space-8); }

.tl-p-0 { padding: 0; }
.tl-p-sm { padding: var(--tl-space-2); }
.tl-p-md { padding: var(--tl-space-4); }
.tl-p-lg { padding: var(--tl-space-6); }
.tl-p-xl { padding: var(--tl-space-8); }

.tl-gap-sm { gap: var(--tl-space-2); }
.tl-gap-md { gap: var(--tl-space-4); }
.tl-gap-lg { gap: var(--tl-space-6); }

.tl-w-full { width: 100%; }
.tl-h-full { height: 100%; }
.tl-min-w-0 { min-width: 0; }

.tl-surface {
  background: var(--tl-surface);
  border: 1px solid var(--tl-border);
  border-radius: var(--tl-radius-lg);
  box-shadow: var(--tl-shadow-sm);
}