:root {
  /* Color */
  --ink: #0b1220;
  --ink-soft: #1e293b;
  --muted: #64748b;
  --muted-light: #94a3b8;
  --surface: #f8fafc;
  --surface-elevated: #ffffff;
  --border: #e2e8f0;
  --border-strong: #cbd5e1;
  --teal: #0d9488;
  --teal-dark: #0f766e;
  --teal-soft: #ccfbf1;
  --teal-glow: rgba(13, 148, 136, 0.12);
  --sky-mist: #e0f2fe;
  --danger-soft: #fef2f2;

  /* Atmosphere */
  --bg-base: #f1f5f9;
  --bg-mesh-1: rgba(13, 148, 136, 0.08);
  --bg-mesh-2: rgba(14, 165, 233, 0.06);
  --bg-mesh-3: rgba(99, 102, 241, 0.03);

  /* Type */
  --font-display: "Syne", system-ui, sans-serif;
  --font-body: "Manrope", system-ui, sans-serif;

  --text-xs: 0.75rem;
  --text-sm: 0.875rem;
  --text-base: 1rem;
  --text-lg: 1.125rem;
  --text-xl: 1.25rem;
  --text-2xl: 1.5rem;
  --text-3xl: 2rem;
  --text-4xl: 2.75rem;
  --text-5xl: 3.5rem;
  --text-hero-brand: clamp(3rem, 8vw, 5.5rem);

  --leading-tight: 1.15;
  --leading-snug: 1.35;
  --leading-normal: 1.6;

  --tracking-tight: -0.03em;
  --tracking-wide: 0.06em;

  /* Spacing */
  --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;

  --section-pad-y: clamp(4rem, 10vw, 7rem);
  --page-gutter: clamp(1rem, 2.2vw, 1.5rem);
  --container: 86rem;
  --container-narrow: 44rem;

  /* Radius */
  --radius-sm: 0.375rem;
  --radius-md: 0.625rem;
  --radius-lg: 1rem;
  --radius-xl: 1.5rem;

  /* Motion */
  --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
  --duration-fast: 180ms;
  --duration: 400ms;
  --duration-slow: 700ms;

  /* Shadows — restrained */
  --shadow-sm: 0 1px 2px rgba(11, 18, 32, 0.04);
  --shadow-md: 0 8px 24px rgba(11, 18, 32, 0.06);

  /* Header */
  --header-h: 4rem;
}