/* ========================================
   DESIGN TOKENS — SlimmerLeren.ai
   Linear-style dark thema met violet accent
   ======================================== */

:root {
  /* --- Colors (Dark — default) --- */
  --bg-primary: #08090a;
  --bg-secondary: #0b0d0e;
  --bg-elevated: rgba(255, 255, 255, 0.02);
  --bg-hover: rgba(255, 255, 255, 0.04);
  --bg-active: rgba(255, 255, 255, 0.06);

  /* Surfaces */
  --surface-card: rgba(255, 255, 255, 0.03);
  --surface-card-hover: rgba(255, 255, 255, 0.05);
  --surface-nav: rgba(8, 9, 10, 0.85);
  --surface-pricing: rgba(255, 255, 255, 0.04);

  /* Accent — Violet */
  --accent: #7c3aed;
  --accent-hover: #8b5cf6;
  --accent-muted: rgba(124, 58, 237, 0.15);
  --accent-glow: rgba(124, 58, 237, 0.25);
  --accent-gradient: linear-gradient(135deg, #7c3aed, #6d28d9);

  /* Text */
  --text-primary: #f7f8f8;
  --text-secondary: #8a8f98;
  --text-tertiary: #62666d;
  --text-link: #7c3aed;
  --text-on-accent: #ffffff;

  /* Borders */
  --border-subtle: rgba(255, 255, 255, 0.08);
  --border-accent: rgba(124, 58, 237, 0.3);
  --border-hover: rgba(255, 255, 255, 0.12);

  /* Glassmorphism */
  --glass-bg: rgba(255, 255, 255, 0.03);
  --glass-bg-strong: rgba(255, 255, 255, 0.06);
  --glass-border: rgba(255, 255, 255, 0.08);
  --glass-blur: blur(20px);
  --glass-blur-sm: blur(12px);

  /* Shadows */
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.5);
  --shadow-glow: 0 0 20px rgba(124, 58, 237, 0.15);

  /* Typography */
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', monospace;

  --text-xs: 0.75rem;
  --text-sm: 0.8125rem;
  --text-base: 1rem;
  --text-lg: 1.125rem;
  --text-xl: 1.25rem;
  --text-2xl: 1.5rem;
  --text-3xl: 2rem;
  --text-4xl: 3rem;
  --text-5xl: 4rem;

  --leading-tight: 1.1;
  --leading-normal: 1.5;
  --leading-relaxed: 1.6;

  --weight-normal: 400;
  --weight-medium: 500;
  --weight-semibold: 600;
  --weight-bold: 700;

  /* Spacing */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;
  --space-24: 6rem;

  /* Layout */
  --max-width: 1200px;
  --nav-height: 64px;
  --radius-sm: 6px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;

  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-base: 200ms ease;
  --transition-slow: 300ms ease;
}

/* --- Light Mode --- */
[data-theme="light"] {
  --bg-primary: #ffffff;
  --bg-secondary: #f8f9fa;
  --bg-elevated: rgba(0, 0, 0, 0.02);
  --bg-hover: rgba(0, 0, 0, 0.04);
  --bg-active: rgba(0, 0, 0, 0.06);

  --surface-card: rgba(0, 0, 0, 0.02);
  --surface-card-hover: rgba(0, 0, 0, 0.04);
  --surface-nav: rgba(255, 255, 255, 0.88);
  --surface-pricing: rgba(0, 0, 0, 0.02);

  --text-primary: #08090a;
  --text-secondary: #6b7280;
  --text-tertiary: #9ca3af;
  --text-link: #7c3aed;

  --border-subtle: rgba(0, 0, 0, 0.08);
  --border-hover: rgba(0, 0, 0, 0.12);

  --glass-bg: rgba(255, 255, 255, 0.8);
  --glass-bg-strong: rgba(255, 255, 255, 0.9);
  --glass-border: rgba(0, 0, 0, 0.08);

  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.1);
  --shadow-glow: 0 0 20px rgba(124, 58, 237, 0.1);
}