:root {
  --color-background: #101024;
  --color-bg: #101024;
  --color-purple: #7c3aed;
  --color-blue: #2563eb;
  --color-cyan: #22d3ee;
  --color-white: #f8fafc;
  --color-offwhite: #f8fafc;
  --color-yellow: #facc15;

  --color-surface: #151630;
  --color-bg-elevated: #151630;
  --color-surface-elevated: #1c1d3d;
  --color-bg-soft: #1c1d3d;
  --color-muted: #94a3b8;
  --color-border: rgba(248, 250, 252, 0.1);
  --color-danger: #f87171;
  --color-success: #34d399;
  --color-on-air: #ef4444;

  --color-purple-soft: rgba(124, 58, 237, 0.18);
  --color-blue-soft: rgba(37, 99, 235, 0.18);
  --color-cyan-soft: rgba(34, 211, 238, 0.16);
  --color-yellow-soft: rgba(250, 204, 21, 0.16);

  --gradient-brand: linear-gradient(135deg, var(--color-purple), var(--color-blue) 55%, var(--color-cyan));
  --gradient-hero: radial-gradient(ellipse 70% 55% at 80% 30%, rgba(124, 58, 237, 0.32), transparent 55%),
    radial-gradient(ellipse 45% 40% at 10% 80%, rgba(37, 99, 235, 0.22), transparent 50%),
    var(--color-background);

  --font-display: "Space Grotesk", "Segoe UI", sans-serif;
  --font-body: "Inter", "Segoe UI", sans-serif;
  --font-pixel: "Press Start 2P", monospace;

  /* Tipografia UX — base mais legível em mobile e desktop */
  --text-xs: clamp(0.78rem, 0.74rem + 0.15vw, 0.84rem);
  --text-sm: clamp(0.9rem, 0.86rem + 0.2vw, 0.98rem);
  --text-base: clamp(1.05rem, 1rem + 0.25vw, 1.125rem);
  --text-lg: clamp(1.12rem, 1.02rem + 0.45vw, 1.28rem);
  --text-xl: clamp(1.4rem, 1.15rem + 1vw, 1.85rem);
  --text-2xl: clamp(1.85rem, 1.35rem + 1.9vw, 2.85rem);
  --text-3xl: clamp(2.2rem, 1.5rem + 2.5vw, 3.4rem);
  --text-hero: clamp(2.6rem, 1.35rem + 4vw, 5rem);
  --leading-body: 1.65;
  --leading-tight: 1.08;
  --tracking-heading: -0.035em;

  --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-section: clamp(4.5rem, 3.5rem + 5vw, 7.5rem);

  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-xl: 28px;
  --radius-full: 999px;

  --container-width: 1280px;
  --container: min(var(--container-width), calc(100% - 2.5rem));
  --header-h: 4.5rem;

  --shadow-glow: 0 0 40px rgba(124, 58, 237, 0.28);
  --shadow-card: 0 24px 60px rgba(0, 0, 0, 0.4);
  --shadow-yellow: 0 8px 28px rgba(250, 204, 21, 0.35);

  --transition-fast: 180ms;
  --transition-medium: 350ms;
  --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
  --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);

  --z-header: 100;
  --z-cookie: 200;
  --z-modal: 300;
}