/*
 * Elevate UI/UX Foundation Tokens — UI01
 * Functional baseline: R37
 *
 * SAFETY CONTRACT
 * - This file defines CSS custom properties only.
 * - It intentionally contains no selectors other than :root.
 * - Existing R37 styles do not consume these variables yet.
 * - Therefore UI01 must not change existing layout, colors, typography,
 *   visibility, responsive behavior, or application functionality.
 */
:root {
  /* Typography */
  --elevate-font-sans: Inter, "Segoe UI", Arial, sans-serif;
  --elevate-font-mono: Consolas, "SFMono-Regular", monospace;
  --elevate-font-size-xs: 0.75rem;
  --elevate-font-size-sm: 0.8125rem;
  --elevate-font-size-md: 0.875rem;
  --elevate-font-size-lg: 1rem;
  --elevate-font-size-xl: 1.125rem;
  --elevate-font-size-2xl: 1.375rem;
  --elevate-line-height-tight: 1.25;
  --elevate-line-height-normal: 1.5;
  --elevate-line-height-relaxed: 1.65;
  --elevate-weight-regular: 400;
  --elevate-weight-medium: 500;
  --elevate-weight-semibold: 600;
  --elevate-weight-bold: 700;
  --elevate-weight-heavy: 800;

  /* Spacing */
  --elevate-space-1: 0.25rem;
  --elevate-space-2: 0.5rem;
  --elevate-space-3: 0.75rem;
  --elevate-space-4: 1rem;
  --elevate-space-5: 1.25rem;
  --elevate-space-6: 1.5rem;
  --elevate-space-8: 2rem;
  --elevate-space-10: 2.5rem;
  --elevate-space-12: 3rem;

  /* Shape */
  --elevate-radius-sm: 0.375rem;
  --elevate-radius-md: 0.5rem;
  --elevate-radius-lg: 0.75rem;
  --elevate-radius-xl: 1rem;
  --elevate-radius-pill: 999px;

  /* Core neutral surfaces */
  --elevate-bg-app: #07090d;
  --elevate-bg-surface: #0d1117;
  --elevate-bg-surface-raised: #111720;
  --elevate-bg-surface-subtle: #0a0f15;
  --elevate-border-default: #2a3441;
  --elevate-border-subtle: #202833;
  --elevate-text-primary: #f3f6fb;
  --elevate-text-secondary: #aab5c2;
  --elevate-text-muted: #8f9baa;

  /* Product accents */
  --elevate-accent-option: #4b83ff;
  --elevate-accent-wealth: #7dd3fc;

  /* Semantic states */
  --elevate-success: #35d06f;
  --elevate-warning: #f4c542;
  --elevate-danger: #ff5a67;
  --elevate-info: #78a9ff;

  /* Controls */
  --elevate-control-height-compact: 2rem;
  --elevate-control-height-default: 2.5rem;
  --elevate-touch-target-min: 2.75rem;

  /* Elevation */
  --elevate-shadow-sm: 0 0.125rem 0.5rem rgba(0, 0, 0, 0.22);
  --elevate-shadow-md: 0 0.75rem 2rem rgba(0, 0, 0, 0.28);

  /* Responsive reference values — documentation tokens only in UI01 */
  --elevate-breakpoint-phone: 430px;
  --elevate-breakpoint-tablet: 768px;
  --elevate-breakpoint-desktop: 1024px;
}