:root {
  /* Official UNOC brand colours */
  --unoc-red: #E10032;
  --unoc-red-rgb: 225, 0, 50;
  --unoc-yellow: #FFC808;
  --unoc-yellow-rgb: 255, 200, 8;
  --unoc-charcoal: #414042;
  --unoc-charcoal-rgb: 65, 64, 66;
  --unoc-black: #000000;
  --unoc-white: #FFFFFF;

  /* Derived interface neutrals */
  --unoc-text: #1A191A;
  --unoc-text-secondary: #59585A;
  --unoc-text-muted: #7C7A7D;
  --unoc-surface: #FFFFFF;
  --unoc-surface-soft: #F6F6F6;
  --unoc-surface-warm: #F9F7F2;
  --unoc-border: #E4E2DF;
  --unoc-border-strong: #C9C7C4;

  /* Functional roles */
  --unoc-primary: var(--unoc-red);
  --unoc-primary-text: var(--unoc-white);
  --unoc-accent: var(--unoc-yellow);
  --unoc-accent-text: var(--unoc-black);
  --unoc-dark: var(--unoc-charcoal);
  --unoc-dark-text: var(--unoc-white);

  /* Typography */
  --unoc-font-brand: "Poppins", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Arial, sans-serif;
  --unoc-font-body: "Poppins", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Arial, sans-serif;
  --unoc-font-mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace;

  /* Type scale */
  --unoc-text-xs: clamp(0.6875rem, 0.66rem + 0.12vw, 0.75rem);
  --unoc-text-sm: clamp(0.8125rem, 0.78rem + 0.14vw, 0.875rem);
  --unoc-text-base: clamp(0.9375rem, 0.9rem + 0.16vw, 1rem);
  --unoc-text-lg: clamp(1.0625rem, 1rem + 0.28vw, 1.125rem);
  --unoc-text-xl: clamp(1.25rem, 1.1rem + 0.7vw, 1.5rem);
  --unoc-text-2xl: clamp(1.5rem, 1.25rem + 1.2vw, 2rem);
  --unoc-text-3xl: clamp(1.875rem, 1.5rem + 1.8vw, 2.75rem);
  --unoc-text-4xl: clamp(2.25rem, 1.7rem + 2.6vw, 3.75rem);
  --unoc-text-5xl: clamp(3rem, 2.2rem + 3.8vw, 5rem);

  /* Layout */
  --unoc-content-max: 1200px;
  --unoc-content-wide: 1360px;
  --unoc-content-narrow: 720px;
  --unoc-gutter: clamp(1.25rem, 4vw, 4rem);
  --unoc-gutter-mobile: 1.25rem;

  /* Spacing rhythm */
  --unoc-section-space: clamp(4rem, 8vw, 7.5rem);
  --unoc-section-space-sm: clamp(2.5rem, 5vw, 4rem);
  --unoc-grid-gap: clamp(1rem, 2.5vw, 2rem);

  /* Radii */
  --unoc-radius-sm: 4px;
  --unoc-radius-md: 10px;
  --unoc-radius-lg: 18px;

  /* Shadows */
  --unoc-shadow-soft: 0 12px 32px rgba(0, 0, 0, 0.08);
  --unoc-shadow-medium: 0 18px 42px rgba(0, 0, 0, 0.12);

  /* Focus */
  --unoc-focus-ring: 0 0 0 3px rgba(var(--unoc-red-rgb), 0.45);
  --unoc-focus-outline: 2px solid var(--unoc-red);

  /* Motion */
  --unoc-transition-fast: 150ms ease;
  --unoc-transition-base: 250ms ease;
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}