:root {
  /* Cor de marca */
  --color-brand-deep: #003f3d;
  --color-brand-dark: #002d2b;
  --color-brand-yellow: #f1df70;
  --color-brand-lime: #c7df4d;

  /* Superfícies e texto */
  --color-background: #f7f6f1;
  --color-surface: #ffffff;
  --color-text: #173330;
  --color-text-muted: #62716d;
  --color-text-on-dark: #f7f6f1;
  --color-text-on-dark-muted: #b7c7c3;
  --color-border: #dfe5df;
  --color-border-on-dark: rgba(247, 246, 241, 0.18);

  /* Estado */
  --color-success: #2f7d57;
  --color-error: #b42318;
  --color-focus-ring: #0b6b64;

  /* Botão amarelo precisa de texto escuro para contraste AA */
  --color-on-brand-yellow: var(--color-brand-dark);

  /* Tipografia */
  --font-family-base: "Inter", "Segoe UI", system-ui, -apple-system, sans-serif;
  --font-size-eyebrow: 0.8125rem;
  --font-size-body: clamp(1rem, 0.94rem + 0.25vw, 1.125rem);
  --font-size-lede: clamp(1.0625rem, 1rem + 0.35vw, 1.25rem);
  --font-size-h1: clamp(2.25rem, 1.7rem + 2.4vw, 3.75rem);
  --font-size-h2: clamp(1.75rem, 1.45rem + 1.4vw, 2.5rem);
  --font-size-h3: clamp(1.25rem, 1.1rem + 0.6vw, 1.5rem);
  --line-height-tight: 1.15;
  --line-height-heading: 1.25;

  /* Espaçamento */
  --space-3xs: 0.25rem;
  --space-2xs: 0.5rem;
  --space-xs: 0.75rem;
  --space-sm: 1rem;
  --space-md: 1.5rem;
  --space-lg: 2rem;
  --space-xl: 3rem;
  --space-2xl: clamp(3rem, 2.2rem + 3.5vw, 5.5rem);
  --space-3xl: clamp(4rem, 3rem + 4.5vw, 7.5rem);

  /* Layout */
  --container-max: 72rem;
  --container-padding: 1.5rem;
  --radius-sm: 0.5rem;
  --radius-md: 0.875rem;
  --radius-lg: 1.5rem;
  --radius-pill: 999px;

  /* Efeitos */
  --shadow-sm: 0 1px 2px rgba(0, 45, 43, 0.08);
  --shadow-md: 0 12px 32px rgba(0, 45, 43, 0.14);
  --transition-fast: 150ms ease;
  --transition-base: 240ms ease;
  --transition-slow: 400ms ease;

  --z-header: 100;
  --z-mobile-nav: 90;
  --z-skip-link: 200;
}