/* ============================================================
   Design Tokens — Build Your Blend
   Warm linen, brass, charcoal aesthetic
   ============================================================ */

:root {
  /* Colors — Light Mode */
  --color-bg: #F7F5F0;
  --color-surface: #FFFFFF;
  --color-text: #1A1A18;
  --color-text-muted: #6E6E6E;
  --color-text-inverse: #F0EDE8;
  --color-text-inverse-strong: #1A1A18;
  --color-accent: #7A5C3E;
  --color-accent-hover: #634930;
  --color-accent-subtle: #F0EBE3;
  --color-border: #E2DFD8;
  --color-border-strong: #C8C4BA;
  --color-success: #3D6B4F;
  --color-success-bg: #EDF5F0;
  --color-error: #B5443A;
  --color-error-bg: #F9EEEE;
  --color-warning: #8B6914;
  --color-warning-bg: #FDF6E3;

  /* Colors — Dark Mode */
  --color-bg-dark: #111110;
  --color-surface-dark: #1E1D1A;
  --color-text-dark: #F3EFE8;
  --color-text-muted-dark: #B4AEA4;
  --color-text-inverse-dark: #151412;
  --color-accent-dark: #D0B285;
  --color-accent-hover-dark: #DEC49E;
  --color-accent-subtle-dark: #312C26;
  --color-border-dark: #39362F;
  --color-border-strong-dark: #4A453D;
  --color-success-dark: #75B48F;
  --color-success-bg-dark: #1D2A22;
  --color-error-dark: #E08980;
  --color-error-bg-dark: #31201E;

  /* Typography */
  --font-heading: 'Cormorant Garamond', Georgia, 'Times New Roman', serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;

  /* Type Scale — Fluid */
  --text-xs: clamp(0.75rem, 0.7rem + 0.25vw, 0.8125rem);
  --text-sm: clamp(0.8125rem, 0.77rem + 0.3vw, 0.9375rem);
  --text-base: clamp(0.9375rem, 0.89rem + 0.35vw, 1.0625rem);
  --text-lg: clamp(1.0625rem, 1rem + 0.4vw, 1.25rem);
  --text-xl: clamp(1.25rem, 1.1rem + 0.6vw, 1.5625rem);
  --text-2xl: clamp(1.5rem, 1.25rem + 1vw, 2rem);
  --text-3xl: clamp(1.875rem, 1.5rem + 1.5vw, 2.75rem);
  --text-4xl: clamp(2.25rem, 1.75rem + 2vw, 3.5rem);
  --text-5xl: clamp(2.75rem, 2rem + 2.5vw, 4.5rem);

  /* Spacing Scale — 4px base */
  --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;

  /* Border Radius */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;
  --radius-full: 9999px;

  /* Shadows */
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.04);
  --shadow-md: 0 2px 8px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 4px 16px rgba(0, 0, 0, 0.08);
  --shadow-xl: 0 8px 32px rgba(0, 0, 0, 0.1);

  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-base: 250ms ease;
  --transition-slow: 400ms ease;

  /* Z-Index Scale */
  --z-base: 1;
  --z-dropdown: 100;
  --z-sticky: 200;
  --z-overlay: 300;
  --z-modal: 400;
  --z-toast: 500;

  /* Container */
  --container-max: 1200px;
  --container-narrow: 720px;
}

/* Dark mode active state */
[data-theme="dark"] {
  --color-bg: var(--color-bg-dark);
  --color-surface: var(--color-surface-dark);
  --color-text: var(--color-text-dark);
  --color-text-muted: var(--color-text-muted-dark);
  --color-text-inverse: var(--color-text-inverse-dark);
  --color-accent: var(--color-accent-dark);
  --color-accent-hover: var(--color-accent-hover-dark);
  --color-accent-subtle: var(--color-accent-subtle-dark);
  --color-border: var(--color-border-dark);
  --color-border-strong: var(--color-border-strong-dark);
  --color-success: var(--color-success-dark);
  --color-success-bg: var(--color-success-bg-dark);
  --color-error: var(--color-error-dark);
  --color-error-bg: var(--color-error-bg-dark);
}