:root {
  color-scheme: light;

  /* Brand colors sampled from the official WeBarthem logo. */
  --color-brand: #4fabe4;
  --color-brand-hover: #2f85bd;
  --color-brand-pressed: #236b99;
  --color-brand-soft: #e1f1fa;
  --color-ink: #3c3c3d;
  --color-ink-soft: #5f6368;
  --color-logo-gray: #7a7c81;
  --color-background: #fbfbfa;
  --color-surface: #fff;
  --color-surface-muted: #f2f4f5;
  --color-border: #d9dde0;
  --color-border-strong: #a0a3a5;
  --color-text: var(--color-ink);
  --color-text-muted: #60656b;
  --color-focus: #0067a8;
  --color-success: #217a4b;
  --color-warning: #8a5b00;
  --color-error: #b3261e;
  --color-dark: #242526;
  --color-dark-elevated: #303234;
  --color-dark-text: #fff;
  --color-dark-muted: #c5c8cb;
  --color-dark-border: #55595c;
  --font-family-sans: "Space Grotesk", "Helvetica Neue", arial, sans-serif;
  --font-size-display-xl: clamp(3.75rem, 9vw, 8.5rem);
  --font-size-display-lg: clamp(3rem, 7vw, 6.75rem);
  --font-size-heading-xl: clamp(2.4rem, 5vw, 4.75rem);
  --font-size-heading-lg: clamp(2rem, 4vw, 3.5rem);
  --font-size-heading-md: clamp(1.55rem, 2.5vw, 2.35rem);
  --font-size-heading-sm: clamp(1.2rem, 1.6vw, 1.5rem);
  --font-size-body-lg: clamp(1.125rem, 1.6vw, 1.35rem);
  --font-size-body: 1rem;
  --font-size-body-sm: 0.875rem;
  --font-size-label: 0.75rem;
  --line-height-display: 0.96;
  --line-height-heading: 1.08;
  --line-height-body: 1.65;
  --tracking-display: -0.055em;
  --tracking-heading: -0.035em;
  --tracking-label: 0.12em;
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.5rem;
  --space-6: 2rem;
  --space-7: 3rem;
  --space-8: 4rem;
  --space-9: 6rem;
  --space-10: 8rem;
  --space-section: clamp(5rem, 10vw, 10rem);
  --space-gutter: clamp(1rem, 4vw, 3rem);
  --container-wide: 90rem;
  --container-content: 80rem;
  --container-narrow: 46rem;
  --radius-sm: 0.25rem;
  --radius-md: 0.625rem;
  --radius-lg: 1.125rem;
  --radius-pill: 999px;
  --border-thin: 1px;
  --border-strong: 2px;
  --shadow-subtle: 0 1px 2px rgb(36 37 38 / 8%);
  --duration-fast: 140ms;
  --duration-normal: 240ms;
  --duration-slow: 480ms;
  --ease-standard: cubic-bezier(0.2, 0.75, 0.25, 1);
  --motion-distance: 0.35rem;
  --z-header: 20;
  --z-overlay: 40;
  --z-focus: 60;
}