:root,
[data-theme="light"] {
  /* Light — soft lavender */
  color-scheme: light;
  --color-bg-primary: #f3eef8;
  --color-bg-surface: #ffffff;
  --color-bg-glow: #e4daf2;
  --color-text-primary: #1c1830;
  --color-text-secondary: #5e5778;
  --color-accent: #6b5cad;
  --color-accent-hover: #564894;
  --color-accent-rgb: 107, 92, 173;
  --color-surface-rgb: 255, 255, 255;
  --color-glass-border: rgba(107, 92, 173, 0.14);
  --color-on-accent: #f8f6ff;
  --shadow-card: 0 8px 32px rgba(28, 24, 48, 0.08);
  --shadow-card-hover: 0 12px 48px rgba(var(--color-accent-rgb), 0.18);

  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 2rem;
  --spacing-lg: 4rem;
  --spacing-xl: 6rem;

  --font-body: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --font-mono: "JetBrains Mono", "Fira Code", monospace;
  --font-size-base: 1rem;
  --font-size-lg: 1.25rem;
  --font-size-xl: 1.75rem;
  --font-size-display: 3.5rem;

  --blur-glass: 10px;
  --border-radius: 12px;
  --transition-speed: 0.3s;
  --max-width: 1100px;
}

[data-theme="dark"] {
  color-scheme: dark;
  --color-bg-primary: #0a0e27;
  --color-bg-surface: #1a1f3a;
  --color-bg-glow: #12183a;
  --color-text-primary: #f0f0f0;
  --color-text-secondary: #a0a0b0;
  --color-accent: #0ea5e9;
  --color-accent-hover: #38bdf8;
  --color-accent-rgb: 14, 165, 233;
  --color-surface-rgb: 26, 31, 58;
  --color-glass-border: rgba(255, 255, 255, 0.1);
  --color-on-accent: #041018;
  --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.3);
  --shadow-card-hover: 0 12px 48px rgba(var(--color-accent-rgb), 0.2);
}