/* ==========================================================================
   LONGBOURN PAPERS — Design Tokens
   Heritage luxury letterpress stationery
   Named for the Bennet estate in Pride and Prejudice
   ========================================================================== */

:root {
  /* ── Colors ─────────────────────────────────────────────────────── */

  /* Primary palette — warm, parchment-forward */
  --color-cream:          #FAF7F2;
  --color-ivory:          #F5F0E8;
  --color-linen:          #EDE8DF;
  --color-parchment:      #E5DFD3;

  /* Text hierarchy — warm blacks, never pure #000 */
  --color-ink:            #1A1A1A;
  --color-charcoal:       #3D3D3D;
  --color-slate:          #6B6B6B;
  --color-stone:          #999590;

  /* Brand accent — hunter green (crimson retired 2026-07-08; var names kept
     so all downstream usage repaints from this one block) */
  --color-crimson:        #1D322D;
  --color-crimson-hover:  #2E4A42;
  --color-crimson-light:  rgba(29, 50, 45, 0.08);

  /* Heritage accents — used sparingly */
  --color-gold:           #B8965A;
  --color-gold-light:     rgba(184, 150, 90, 0.12);
  --color-sage:           #7A8B72;
  --color-navy:           #1D322D;   /* hunter green — English-countryside repaint 2026-07-02 (was navy #1B2D4F) */

  /* Functional */
  --color-border:         #E0DBD2;
  --color-border-light:   #EDE8DF;
  --color-focus:          #1D322D;
  --color-success:        #2D6A4F;
  --color-error:          #9B2C2C;
  --color-overlay:        rgba(26, 26, 26, 0.5);

  /* ── Typography ────────────────────────────────────────────────── */

  --font-display:   'Playfair Display', 'Georgia', 'Times New Roman', serif;
  --font-body:      'Libre Franklin', 'Helvetica Neue', 'Arial', sans-serif;

  /* Fluid type scale */
  --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(0.938rem, 0.875rem + 0.3vw, 1.063rem);
  --text-lg:     clamp(1.1rem, 1rem + 0.5vw, 1.25rem);
  --text-xl:     clamp(1.25rem, 1.1rem + 0.75vw, 1.5rem);
  --text-2xl:    clamp(1.5rem, 1.2rem + 1.5vw, 2.25rem);
  --text-3xl:    clamp(1.875rem, 1.4rem + 2.4vw, 3rem);
  --text-4xl:    clamp(2.25rem, 1.6rem + 3.2vw, 4rem);
  --text-hero:   clamp(2.5rem, 1.5rem + 5vw, 5.5rem);

  /* Line heights */
  --leading-tight:    1.15;
  --leading-snug:     1.3;
  --leading-normal:   1.6;
  --leading-relaxed:  1.75;

  /* Letter spacing */
  --tracking-tight:   -0.02em;
  --tracking-normal:  0;
  --tracking-wide:    0.05em;
  --tracking-wider:   0.1em;
  --tracking-widest:  0.2em;

  /* Font weights */
  --weight-light:     300;
  --weight-regular:   400;
  --weight-medium:    500;
  --weight-semibold:  600;
  --weight-bold:      700;

  /* ── Spacing ───────────────────────────────────────────────────── */

  --space-2xs:   0.125rem;
  --space-xs:    0.25rem;
  --space-sm:    0.5rem;
  --space-md:    1rem;
  --space-lg:    1.5rem;
  --space-xl:    2rem;
  --space-2xl:   3rem;
  --space-3xl:   4.5rem;
  --space-4xl:   6rem;
  --space-5xl:   8rem;
  --space-6xl:   12rem;

  /* Section spacing */
  --section-gap: clamp(4rem, 8vw, 8rem);

  /* ── Layout ────────────────────────────────────────────────────── */

  --max-width:        1280px;
  --max-width-narrow: 680px;
  --max-width-wide:   1440px;
  --gutter:           clamp(1.5rem, 4.5vw, 4rem);

  /* ── Borders & Radius ──────────────────────────────────────────── */

  --radius-sm:   2px;
  --radius-md:   4px;
  --radius-lg:   8px;
  --radius-full: 9999px;
  --border-thin: 1px solid var(--color-border);
  --border-light: 1px solid var(--color-border-light);

  /* ── Shadows ───────────────────────────────────────────────────── */

  --shadow-xs:   0 1px 2px rgba(26, 26, 26, 0.03);
  --shadow-sm:   0 1px 4px rgba(26, 26, 26, 0.05);
  --shadow-md:   0 4px 16px rgba(26, 26, 26, 0.06);
  --shadow-lg:   0 8px 32px rgba(26, 26, 26, 0.08);
  --shadow-xl:   0 16px 48px rgba(26, 26, 26, 0.1);

  /* ── Transitions ───────────────────────────────────────────────── */

  --ease-out:       cubic-bezier(0.16, 1, 0.3, 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-base:   250ms;
  --duration-slow:   400ms;
  --duration-slower: 600ms;

  /* ── Z-index scale ─────────────────────────────────────────────── */

  --z-base:     1;
  --z-dropdown: 10;
  --z-sticky:   20;
  --z-overlay:  30;
  --z-modal:    40;
  --z-toast:    50;
}