/* EFBA Europe B.V. - Design System Variables */
/* Dutch Rationalist Aesthetic - De Stijl inspired */

:root {
  /* Primary Brand Colors */
  --color-primary-900: #082f49;
  --color-primary-800: #0c4a6e;
  --color-primary-700: #0369a1;
  --color-primary-600: #0284c7;
  --color-primary-500: #0ea5e9;
  --color-primary-400: #38bdf8;
  --color-primary-300: #7dd3fc;
  --color-primary-200: #bae6fd;
  --color-primary-100: #e0f2fe;

  /* Accent - Bold Orange (De Stijl inspired) */
  --color-accent-700: #c2410c;
  --color-accent-600: #ea580c;
  --color-accent-500: #f59e0b;
  --color-accent-400: #fbbf24;
  --color-accent-300: #fcd34d;
  --color-accent-200: #fde68a;
  --color-accent-100: #fef3c7;

  /* Neutral Palette - Warm grays */
  --color-neutral-950: #0a0a0a;
  --color-neutral-900: #171717;
  --color-neutral-800: #262626;
  --color-neutral-700: #404040;
  --color-neutral-600: #525252;
  --color-neutral-500: #737373;
  --color-neutral-400: #a3a3a3;
  --color-neutral-300: #d4d4d4;
  --color-neutral-200: #e5e5e5;
  --color-neutral-100: #f5f5f5;
  --color-neutral-50: #fafafa;

  /* Semantic Colors */
  --color-success: #16a34a;
  --color-warning: #ca8a04;
  --color-error: #dc2626;
  --color-info: #2563eb;

  /* Light Theme (Default) */
  --bg-primary: #ffffff;
  --bg-secondary: #fafafa;
  --bg-tertiary: #f5f5f5;
  --bg-elevated: #ffffff;
  --bg-accent-block: var(--color-accent-500);

  --text-primary: #0a0a0a;
  --text-secondary: #404040;
  --text-tertiary: #737373;
  --text-inverse: #ffffff;
  --text-accent: var(--color-accent-600);
  --text-link: var(--color-primary-700);
  --text-link-hover: var(--color-primary-800);

  --border-primary: #e5e5e5;
  --border-secondary: #d4d4d4;
  --border-accent: var(--color-accent-500);

  --shadow-color: 220 3% 15%;
  --shadow-xs: 0 1px 2px hsl(var(--shadow-color) / 0.04);
  --shadow-sm: 0 2px 4px hsl(var(--shadow-color) / 0.06);
  --shadow-md: 0 4px 8px hsl(var(--shadow-color) / 0.08), 0 2px 4px hsl(var(--shadow-color) / 0.04);
  --shadow-lg: 0 8px 16px hsl(var(--shadow-color) / 0.1), 0 4px 8px hsl(var(--shadow-color) / 0.06);
  --shadow-xl: 0 16px 32px hsl(var(--shadow-color) / 0.12), 0 8px 16px hsl(var(--shadow-color) / 0.08);

  /* Typography Scale - Fluid */
  --font-display: 'Bricolage Grotesque', system-ui, sans-serif;
  --font-body: 'Atkinson Hyperlegible', system-ui, sans-serif;
  --font-mono: 'JetBrains Mono', ui-monospace, monospace;

  --text-xs: clamp(0.7rem, 0.65rem + 0.25vw, 0.75rem);
  --text-sm: clamp(0.8rem, 0.75rem + 0.25vw, 0.875rem);
  --text-base: clamp(0.95rem, 0.9rem + 0.25vw, 1rem);
  --text-lg: clamp(1.05rem, 1rem + 0.25vw, 1.125rem);
  --text-xl: clamp(1.15rem, 1.1rem + 0.25vw, 1.25rem);
  --text-2xl: clamp(1.35rem, 1.2rem + 0.75vw, 1.5rem);
  --text-3xl: clamp(1.6rem, 1.4rem + 1vw, 1.875rem);
  --text-4xl: clamp(1.9rem, 1.6rem + 1.5vw, 2.25rem);
  --text-5xl: clamp(2.4rem, 2rem + 2vw, 3rem);
  --text-6xl: clamp(3rem, 2.5rem + 2.5vw, 3.75rem);
  --text-7xl: clamp(3.6rem, 3rem + 3vw, 4.5rem);

  --font-weight-normal: 400;
  --font-weight-medium: 500;
  --font-weight-semibold: 600;
  --font-weight-bold: 700;
  --font-weight-extrabold: 800;

  --line-height-tight: 1.15;
  --line-height-snug: 1.3;
  --line-height-normal: 1.5;
  --line-height-relaxed: 1.65;

  --letter-spacing-tight: -0.025em;
  --letter-spacing-normal: 0;
  --letter-spacing-wide: 0.025em;
  --letter-spacing-wider: 0.05em;
  --letter-spacing-widest: 0.1em;

  /* Spacing Scale */
  --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;
  --space-32: 8rem;
  --space-40: 10rem;

  /* Layout */
  --container-xs: 20rem;
  --container-sm: 24rem;
  --container-md: 28rem;
  --container-lg: 32rem;
  --container-xl: 36rem;
  --container-2xl: 42rem;
  --container-3xl: 48rem;
  --container-4xl: 56rem;
  --container-5xl: 64rem;
  --container-6xl: 72rem;
  --container-7xl: 80rem;
  --container-full: 90rem;

  /* Border Radius */
  --radius-sm: 0.25rem;
  --radius-md: 0.375rem;
  --radius-lg: 0.5rem;
  --radius-xl: 0.75rem;
  --radius-2xl: 1rem;
  --radius-3xl: 1.5rem;
  --radius-full: 9999px;

  /* Transitions */
  --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
  --ease-in-out: cubic-bezier(0.65, 0, 0.35, 1);
  --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);

  --duration-fast: 150ms;
  --duration-normal: 250ms;
  --duration-slow: 400ms;
  --duration-slower: 600ms;

  /* Z-Index Scale */
  --z-dropdown: 100;
  --z-sticky: 200;
  --z-fixed: 300;
  --z-modal-backdrop: 400;
  --z-modal: 500;
  --z-popover: 600;
  --z-tooltip: 700;
}

/* Dark Theme */
[data-theme="dark"] {
  --bg-primary: #0f172a;
  --bg-secondary: #1e293b;
  --bg-tertiary: #334155;
  --bg-elevated: #1e293b;
  --bg-accent-block: var(--color-accent-600);

  --text-primary: #f8fafc;
  --text-secondary: #cbd5e1;
  --text-tertiary: #94a3b8;
  --text-inverse: #0f172a;
  --text-accent: var(--color-accent-400);
  --text-link: var(--color-primary-400);
  --text-link-hover: var(--color-primary-300);

  --border-primary: #334155;
  --border-secondary: #475569;
  --border-accent: var(--color-accent-500);

  --shadow-color: 220 40% 2%;
  --shadow-xs: 0 1px 2px hsl(var(--shadow-color) / 0.2);
  --shadow-sm: 0 2px 4px hsl(var(--shadow-color) / 0.3);
  --shadow-md: 0 4px 8px hsl(var(--shadow-color) / 0.4), 0 2px 4px hsl(var(--shadow-color) / 0.2);
  --shadow-lg: 0 8px 16px hsl(var(--shadow-color) / 0.5), 0 4px 8px hsl(var(--shadow-color) / 0.3);
  --shadow-xl: 0 16px 32px hsl(var(--shadow-color) / 0.6), 0 8px 16px hsl(var(--shadow-color) / 0.4);
}