/* ==========================================================================
   Design Tokens — CCI Reagent Visual Identity
   Source: visual_identity.md
   ========================================================================== */

:root {
  /* Brand Blues */
  --cci-blue-700: #0B6FB7;
  --cci-blue-600: #1F86C8;
  --cci-blue-500: #2A97D6;
  --cci-blue-300: #86C3E6;
  --cci-blue-200: #B7DDF0;
  --cci-blue-100: #E6F3FA;

  /* Neutrals */
  --ink-900: #0A0F14;
  --ink-700: #24303A;
  --ink-500: #5B6B78;
  --line-200: #D6E6F0;
  --white: #FFFFFF;

  /* Utility */
  --color-success: #1F8A5C;
  --color-warning: #B7791F;
  --color-error: #B42318;

  /* Gradients */
  --gradient-hero: linear-gradient(180deg, #2A97D6 0%, #B7DDF0 50%, #FFFFFF 100%);
  --gradient-section: linear-gradient(180deg, #E6F3FA 0%, #FFFFFF 100%);

  /* Typography */
  --font-heading: 'Montserrat', 'Poppins', sans-serif;
  --font-body: 'Inter', 'Source Sans 3', sans-serif;

  --text-h1: clamp(2.25rem, 4vw, 3.5rem);
  --text-h2: clamp(1.75rem, 3vw, 2.5rem);
  --text-h3: clamp(1.25rem, 2vw, 1.75rem);
  --text-body: clamp(1rem, 1.125vw, 1.125rem);
  --text-small: 0.875rem;
  --text-micro: 0.8125rem;

  --leading-tight: 1.2;
  --leading-normal: 1.6;
  --leading-relaxed: 1.7;

  --tracking-tight: -0.01em;
  --tracking-normal: 0;

  /* Spacing (8px base unit) */
  --space-4: 0.25rem;
  --space-8: 0.5rem;
  --space-12: 0.75rem;
  --space-16: 1rem;
  --space-24: 1.5rem;
  --space-32: 2rem;
  --space-48: 3rem;
  --space-64: 4rem;
  --space-80: 5rem;
  --space-96: 6rem;
  --space-128: 8rem;

  /* Radii */
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-pill: 100px;

  /* Shadows */
  --shadow-subtle: 0 1px 3px rgba(10, 15, 20, 0.06);
  --shadow-card: 0 2px 8px rgba(10, 15, 20, 0.08);

  /* Layout */
  --container-max: 1200px;
  --container-padding: var(--space-24);
  --grid-gap: var(--space-24);

  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-normal: 250ms ease;

  /* Z-index scale */
  --z-header: 100;
  --z-dropdown: 200;
  --z-overlay: 300;
  --z-cookie-banner: 400;
}