:root {
  --bg-primary: #0b0f17;
  --bg-secondary: #111827;
  --bg-tertiary: #1f2937;
  --surface: rgba(17, 24, 39, 0.9);
  --surface-strong: #0f172a;
  --text-primary: #f9fafb;
  --text-secondary: #9ca3af;
  --accent-primary: #4f46e5;
  --accent-soft: rgba(79, 70, 229, 0.18);
  --border-color: rgba(255, 255, 255, 0.08);
  --shadow-lg: 0 24px 60px rgba(0, 0, 0, 0.35);
  --container-width: 1280px;
  --space-1: 0.5rem;
  --space-2: 1rem;
  --space-3: 1.5rem;
  --space-4: 2rem;
  --space-5: 2.5rem;
  --space-6: 3rem;
  --space-7: 4rem;
  --space-8: 5rem;
  --radius-sm: 0.75rem;
  --radius-md: 1rem;
  --radius-lg: 1.5rem;
  --radius-xl: 2rem;
}

* {
  box-sizing: border-box;
}

html {
  color-scheme: dark;
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  background:
    radial-gradient(circle at top left, rgba(79, 70, 229, 0.18), transparent 35%),
    radial-gradient(circle at top right, rgba(16, 185, 129, 0.08), transparent 28%),
    linear-gradient(180deg, #070b12 0%, var(--bg-primary) 100%);
  color: var(--text-primary);
  font-family: Inter, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.5;
}

img,
svg,
video,
canvas {
  display: block;
  max-width: 100%;
}

a {
  color: inherit;
  text-decoration: none;
}

button,
input,
textarea,
select {
  font: inherit;
}

#site-header,
#site-footer {
  width: 100%;
}

.page-shell {
  min-height: 100vh;
}