/* =========================================================
   CF Plumbing & Bathrooms — Design Tokens
   Premium / minimal / architectural palette.
   Brass accent sampled from real brass tapware (build_4 assets).
   ========================================================= */

:root {
  /* ---- Color: base palette ---- */
  --color-ivory: #f4f1ec;
  --color-warm-white: #faf8f5;
  --color-charcoal: #17181b;
  --color-charcoal-soft: #24262a;
  --color-graphite: #55575c;
  --color-concrete: #a8a6a1;
  --color-concrete-light: #dcd9d3;
  --color-brass: #a9825b;
  --color-brass-light: #c9a578;
  --color-brass-dark: #86653f;

  /* ---- Color: semantic ---- */
  --bg-page: var(--color-warm-white);
  --bg-section-alt: var(--color-ivory);
  --bg-dark: var(--color-charcoal);
  --bg-dark-soft: var(--color-charcoal-soft);
  --text-primary: var(--color-charcoal);
  --text-inverse: var(--color-warm-white);
  --text-muted: var(--color-graphite);
  --text-muted-inverse: var(--color-concrete-light);
  --accent: var(--color-brass);
  --accent-light: var(--color-brass-light);
  --accent-dark: var(--color-brass-dark);
  --border-subtle: rgba(23, 24, 27, 0.1);
  --border-subtle-inverse: rgba(250, 248, 245, 0.14);
  --focus-ring: #2f7ac2;

  /* ---- Typography ---- */
  --font-serif: "Playfair Display", Georgia, "Times New Roman", serif;
  --font-sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;

  --fs-100: 0.75rem;   /* 12px */
  --fs-200: 0.875rem;  /* 14px */
  --fs-300: 1rem;      /* 16px */
  --fs-400: 1.125rem;  /* 18px */
  --fs-500: 1.5rem;    /* 24px */
  --fs-600: 2rem;      /* 32px */
  --fs-700: 2.75rem;   /* 44px */
  --fs-800: 3.5rem;    /* 56px */
  --fs-900: 4.25rem;   /* 68px */

  --lh-tight: 1.15;
  --lh-normal: 1.5;
  --lh-loose: 1.7;

  --fw-regular: 400;
  --fw-medium: 500;
  --fw-semibold: 600;
  --fw-bold: 700;

  /* ---- Spacing (8px base) ---- */
  --space-1: 0.5rem;
  --space-2: 1rem;
  --space-3: 1.5rem;
  --space-4: 2rem;
  --space-5: 3rem;
  --space-6: 4rem;
  --space-7: 6rem;
  --space-8: 8rem;

  /* ---- Radius ---- */
  --radius-sm: 2px;
  --radius-md: 4px;
  --radius-lg: 10px;
  --radius-full: 9999px;

  /* ---- Shadow (restrained) ---- */
  --shadow-sm: 0 1px 3px rgba(23, 24, 27, 0.08);
  --shadow-md: 0 8px 24px rgba(23, 24, 27, 0.10);
  --shadow-lg: 0 20px 56px rgba(23, 24, 27, 0.16);

  /* ---- Motion ---- */
  --dur-fast: 150ms;
  --dur-base: 300ms;
  --dur-slow: 600ms;
  --dur-hero: 900ms;
  --ease-standard: cubic-bezier(0.4, 0, 0.2, 1);
  --ease-out-expo: cubic-bezier(0.16, 1, 0.3, 1);

  /* ---- Layout ---- */
  --container-max: 1280px;
  --container-pad: var(--space-3);
  --z-nav: 100;
  --z-overlay: 200;
}

@media (min-width: 768px) {
  :root {
    --container-pad: var(--space-4);
  }
}

@media (min-width: 1024px) {
  :root {
    --container-pad: var(--space-5);
  }
}