/*
 * r4ds.es — design tokens
 * Single source of truth. Copied verbatim into /app/public/assets/css/tokens.css
 * by the deploy step. Edit here, never in the copy.
 */

:root {
  /* Brand — azul R4 modernizado */
  --brand-950: #051528;
  --brand-900: #07203F;
  --brand-800: #0C2F60;
  --brand-700: #103F86;
  --brand-600: #1252AB;
  --brand-500: #1F6BD1;
  --brand-400: #4E8FE0;
  --brand-300: #7FB0EB;
  --brand-200: #B5D4F4;
  --brand-100: #DCE9FA;
  --brand-50:  #EEF4FD;

  /* Accent — teal frío, uso quirúrgico */
  --accent-600: #0D9488;
  --accent-500: #14B8A6;
  --accent-100: #CCFBF1;

  /* Neutros cálidos */
  --ink-950: #0E0F11;
  --ink-900: #1C1B17;
  --ink-700: #44443F;
  --ink-500: #6B6A64;
  --ink-400: #8D8C85;
  --ink-300: #B4B2A9;
  --ink-200: #D3D1C7;
  --ink-100: #E8E3D8;
  --ink-50:  #F2EFE7;

  /* Superficies */
  --surface-0:  #FFFFFF;
  --surface-1:  #FAF8F2;       /* fondo de página claro */
  --surface-2:  #F2EFE7;       /* tarjetas elevadas */
  --surface-3:  #E8E3D8;       /* divisores y bordes */
  --surface-inverse: #0E0F11;

  /* Estados semánticos */
  --success-600: #15803D;
  --success-100: #DCFCE7;
  --warning-600: #B45309;
  --warning-100: #FEF3C7;
  --danger-600:  #B91C1C;
  --danger-100:  #FEE2E2;
  --info-600:    var(--brand-600);
  --info-100:    var(--brand-100);

  /* Mapeo semántico (lo que usan los componentes) */
  --color-bg:           var(--surface-1);
  --color-bg-raised:    var(--surface-0);
  --color-bg-sunken:    var(--surface-2);
  --color-text:         var(--ink-900);
  --color-text-muted:   var(--ink-500);
  --color-text-soft:    var(--ink-400);
  --color-text-inverse: var(--ink-50);
  --color-link:         var(--brand-600);
  --color-link-hover:   var(--brand-700);
  --color-border:       var(--ink-100);
  --color-border-soft:  var(--ink-50);
  --color-border-strong:var(--ink-200);
  --color-focus-ring:   var(--brand-500);

  /* Tipografía
     Display: Bricolage Grotesque (variable, grotesque con carácter)
     Body:    IBM Plex Sans (variable, técnica, números tabulares)
     Mono:    JetBrains Mono (hashes md5, paths, nombres de fichero)
     Stack: caída con system fonts si las web fonts no cargan. */
  --font-display: 'Bricolage Grotesque', ui-sans-serif, system-ui, sans-serif;
  --font-body:    'IBM Plex Sans', system-ui, -apple-system, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  --font-mono:    'JetBrains Mono', 'IBM Plex Mono', ui-monospace, 'SF Mono', Menlo, Consolas, monospace;

  /* Escala tipográfica fluida (clamp(min, fluid, max)) */
  --fs-xs:   0.75rem;
  --fs-sm:   0.875rem;
  --fs-base: 1rem;
  --fs-lg:   1.125rem;
  --fs-xl:   clamp(1.25rem, 1.15rem + 0.5vw, 1.5rem);
  --fs-2xl:  clamp(1.5rem,  1.3rem  + 1vw,   2rem);
  --fs-3xl:  clamp(2rem,    1.5rem  + 2vw,   3rem);
  --fs-4xl:  clamp(2.5rem,  1.8rem  + 3vw,   4rem);

  /* Pesos: variables, dos efectivos */
  --fw-regular: 400;
  --fw-medium:  500;
  --fw-bold:    600;

  /* Layout */
  --content-width: 1100px;
  --content-narrow: 680px;
  --gutter: clamp(1rem, 0.5rem + 2vw, 2rem);

  /* Radii */
  --radius-sm: 4px;
  --radius:    8px;
  --radius-lg: 12px;
  --radius-xl: 20px;
  --radius-pill: 999px;

  /* Sombras — discretas, planas */
  --shadow-1: 0 1px 0 0 rgba(7, 32, 63, 0.04);
  --shadow-2: 0 4px 12px -4px rgba(7, 32, 63, 0.08), 0 1px 0 0 rgba(7, 32, 63, 0.04);
  --shadow-pop: 0 12px 28px -8px rgba(7, 32, 63, 0.18);

  /* Motion */
  --ease-out: cubic-bezier(0.2, 0.8, 0.2, 1);
  --t-fast: 120ms;
  --t-med:  200ms;
  --t-slow: 320ms;

  /* z-index */
  --z-nav:    50;
  --z-modal: 100;
  --z-toast: 200;

  color-scheme: light dark;
}

@media (prefers-color-scheme: dark) {
  :root {
    --color-bg:           var(--ink-950);
    --color-bg-raised:    #15171B;
    --color-bg-sunken:    #0B0C0E;
    --color-text:         var(--ink-50);
    --color-text-muted:   var(--ink-300);
    --color-text-soft:    var(--ink-400);
    --color-link:         var(--brand-400);
    --color-link-hover:   var(--brand-300);
    --color-border:       #23262C;
    --color-border-soft:  #1A1C20;
    --color-border-strong:#2D3037;
  }
}

/* Honor user preferences */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}