:root {
  --color-primary: #06b6d4;
  --color-primary-dark: #0891b2;
  --color-primary-light: rgba(6, 182, 212, 0.15);
  --color-secondary: #3b82f6;
  --color-accent: #8b5cf6;
  --color-text: #f8fafc;
  --color-text-muted: #94a3b8;
  --color-bg: #0b0f19;
  --color-surface: #111827;
  --color-surface-elevated: #1e2538;
  --color-bg-alt: #151b2b;
  --color-border: rgba(148, 163, 184, 0.14);
  --color-danger: #f43f5e;
  --gradient-body: radial-gradient(ellipse at top, #111827 0%, #0b0f19 60%), #0b0f19;
  --gradient-hero: linear-gradient(135deg, #0f172a 0%, #1e1b4b 50%, #0c4a6e 100%);
  --gradient-hero-mesh: radial-gradient(circle at 20% 30%, rgba(6, 182, 212, 0.18) 0%, transparent 45%),
                       radial-gradient(circle at 80% 70%, rgba(139, 92, 246, 0.14) 0%, transparent 45%);
  --gradient-callout: linear-gradient(135deg, #06b6d4 0%, #3b82f6 50%, #8b5cf6 100%);
  --gradient-brand: linear-gradient(135deg, #06b6d4 0%, #3b82f6 50%, #8b5cf6 100%);
  --font-sans: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --font-head: "Inter", system-ui, sans-serif;
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;
  --container-max: 1160px;
  --radius: 14px;
  --radius-sm: 8px;
  --shadow-sm: 0 1px 2px rgba(2, 8, 23, 0.4);
  --shadow-md: 0 8px 24px rgba(2, 8, 23, 0.5);
  --shadow-lg: 0 18px 48px rgba(2, 8, 23, 0.6);
  --shadow-glow: 0 0 24px rgba(6, 182, 212, 0.25);
  --ease: cubic-bezier(0.4, 0, 0.2, 1);
}

:root {
  color: var(--color-text);
  background: var(--gradient-body) fixed;
  font-family: var(--font-sans);
  font-size: clamp(1rem, 0.95rem + 0.25vw, 1.125rem);
  line-height: 1.65;
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}