/* =========================================
   TAGNI DESIGN SYSTEM — Custom Palette
   Inspired by: duality, clarity, structure,
   warm authority, deep calm
   ========================================= */

:root,
[data-theme='light'] {
  /* ---- Type Scale ---- */
  --text-xs:   clamp(0.75rem, 0.7rem + 0.25vw, 0.875rem);
  --text-sm:   clamp(0.875rem, 0.8rem + 0.35vw, 1rem);
  --text-base: clamp(1rem, 0.95rem + 0.25vw, 1.125rem);
  --text-lg:   clamp(1.125rem, 1rem + 0.75vw, 1.5rem);
  --text-xl:   clamp(1.5rem, 1.2rem + 1.25vw, 2.25rem);
  --text-2xl:  clamp(2rem, 1.2rem + 2.5vw, 3.5rem);
  --text-3xl:  clamp(2.5rem, 1rem + 4vw, 5rem);
  --text-hero: clamp(3rem, 0.5rem + 7vw, 8rem);

  /* ---- 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;
  --space-32: 8rem;

  /* ---- Tagni Palette (Light) ----
     Warm ivory surfaces · Deep charcoal text
     Indigo as primary accent · Copper as warm accent
  */

  /* Surfaces */
  --color-bg:              #F8F6F1;   /* warm ivory */
  --color-surface:         #FAF8F4;   /* slightly lifted */
  --color-surface-2:       #FCFBF8;
  --color-surface-offset:  #F1EDE5;   /* warm bone offset */
  --color-surface-offset-2:#E9E4DA;
  --color-surface-dynamic: #E2DBD0;
  --color-divider:         #D8D2C6;
  --color-border:          #CEC8BA;

  /* Text */
  --color-text:            #1E1C18;   /* near-black charcoal */
  --color-text-muted:      #6B685E;
  --color-text-faint:      #B4B0A8;
  --color-text-inverse:    #F8F6F1;

  /* Primary: Deep Indigo */
  --color-primary:         #2D3A8C;
  --color-primary-hover:   #1E2A6B;
  --color-primary-active:  #141D4E;
  --color-primary-light:   #E8EAFA;
  --color-primary-highlight: #C7CDF0;

  /* Accent: Copper / Terracotta */
  --color-accent:          #B5602A;
  --color-accent-hover:    #924B20;
  --color-accent-active:   #6E3617;
  --color-accent-light:    #F5E6DC;
  --color-accent-highlight:#E8C9B4;

  /* Dark section backgrounds */
  --color-dark-bg:         #13120E;   /* deep charcoal */
  --color-dark-surface:    #1A1916;
  --color-dark-text:       #EDE9E0;
  --color-dark-muted:      #9A9690;

  /* State colors */
  --color-success:         #3D7A2A;
  --color-success-light:   #DCF0D4;
  --color-warning:         #956B1A;
  --color-warning-light:   #F7EDD6;
  --color-error:           #9B2C2C;
  --color-error-light:     #FDDEDE;

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

  /* ---- Transitions ---- */
  --transition-fast:        120ms cubic-bezier(0.16, 1, 0.3, 1);
  --transition-interactive: 180ms cubic-bezier(0.16, 1, 0.3, 1);
  --transition-smooth:      320ms cubic-bezier(0.16, 1, 0.3, 1);

  /* ---- Shadows (warm-toned) ---- */
  --shadow-xs: 0 1px 2px oklch(0.18 0.02 55 / 0.05);
  --shadow-sm: 0 2px 4px oklch(0.18 0.02 55 / 0.07);
  --shadow-md: 0 4px 16px oklch(0.18 0.02 55 / 0.09);
  --shadow-lg: 0 12px 40px oklch(0.18 0.02 55 / 0.13);
  --shadow-xl: 0 24px 64px oklch(0.18 0.02 55 / 0.18);

  /* ---- Content widths ---- */
  --content-narrow:  640px;
  --content-default: 960px;
  --content-wide:    1200px;
  --content-full:    100%;

  /* ---- Fonts ---- */
  --font-display: 'Zodiak', 'Georgia', serif;
  --font-body:    'Satoshi', 'Helvetica Neue', sans-serif;
}

/* ---- Dark Mode ---- */
[data-theme='dark'] {
  --color-bg:              #13120E;
  --color-surface:         #1A1916;
  --color-surface-2:       #1F1E1B;
  --color-surface-offset:  #1C1B18;
  --color-surface-offset-2:#232118;
  --color-surface-dynamic: #2C2B27;
  --color-divider:         #252420;
  --color-border:          #363430;
  --color-text:            #EDE9E0;
  --color-text-muted:      #8A8780;
  --color-text-faint:      #555250;
  --color-text-inverse:    #1A1916;
  --color-primary:         #7B8ED6;
  --color-primary-hover:   #9BAADF;
  --color-primary-active:  #B9C3E8;
  --color-primary-light:   #1E2240;
  --color-primary-highlight:#2A3156;
  --color-accent:          #D47F50;
  --color-accent-hover:    #E09A6A;
  --color-accent-active:   #EBB48F;
  --color-accent-light:    #3A2218;
  --color-accent-highlight:#4A2E1E;
  --color-dark-bg:         #0D0C0A;
  --color-dark-surface:    #131210;
  --color-dark-text:       #EDE9E0;
  --color-dark-muted:      #7A7770;
  --color-success:         #5CA844;
  --color-success-light:   #1E3018;
  --color-warning:         #C8963A;
  --color-warning-light:   #382A12;
  --color-error:           #D45C5C;
  --color-error-light:     #381818;
  --shadow-xs: 0 1px 2px oklch(0 0 0 / 0.2);
  --shadow-sm: 0 2px 4px oklch(0 0 0 / 0.3);
  --shadow-md: 0 4px 16px oklch(0 0 0 / 0.35);
  --shadow-lg: 0 12px 40px oklch(0 0 0 / 0.4);
  --shadow-xl: 0 24px 64px oklch(0 0 0 / 0.5);
}

/* System preference fallback */
@media (prefers-color-scheme: dark) {
  :root:not([data-theme]) {
    --color-bg:              #13120E;
    --color-surface:         #1A1916;
    --color-surface-2:       #1F1E1B;
    --color-surface-offset:  #1C1B18;
    --color-surface-offset-2:#232118;
    --color-surface-dynamic: #2C2B27;
    --color-divider:         #252420;
    --color-border:          #363430;
    --color-text:            #EDE9E0;
    --color-text-muted:      #8A8780;
    --color-text-faint:      #555250;
    --color-text-inverse:    #1A1916;
    --color-primary:         #7B8ED6;
    --color-primary-hover:   #9BAADF;
    --color-primary-active:  #B9C3E8;
    --color-primary-light:   #1E2240;
    --color-primary-highlight:#2A3156;
    --color-accent:          #D47F50;
    --color-accent-hover:    #E09A6A;
    --color-accent-active:   #EBB48F;
    --color-accent-light:    #3A2218;
    --color-accent-highlight:#4A2E1E;
  }
}