/* ==========================================================================
   CUENTAS CLARAS — DESIGN TOKENS
   --------------------------------------------------------------------------
   Amplía los 12 tokens existentes en :root con un sistema fluido completo.
   Todo lo que escala usa clamp(min, fluid, max) anclado a viewport width.
   Floor de fluidez: 1024px. Techo: 1600px. (Coherente con la app desktop.)
   ========================================================================== */

:root {
  /* ====================================================
     1 · COLORES — Paleta extendida
     ==================================================== */

  /* Verde primario (identidad de marca · DEEP FOREST) */
  --color-primary-50:  #E9F4EE;
  --color-primary-100: #C8E3D2;
  --color-primary-200: #95C8AB;
  --color-primary-300: #5FA983;
  --color-primary-400: #3E8C66;
  --color-primary-500: #2D6A4F;   /* ← marca · canonical */
  --color-primary-600: #245540;
  --color-primary-700: #1B4332;
  --color-primary-800: #133126;
  --color-primary-900: #0B1F18;

  /* Aliases canónicos (compatibilidad con CSS existente) */
  --color-primary:        var(--color-primary-500);
  --color-primary-hover:  var(--color-primary-700);
  --color-primary-teal:   #2A9D8F;   /* acento existente — botón cobrar mesa */

  /* Neutrales (warm gray para no enfriar el verde) */
  --color-ink-900: #111418;   /* texto principal heavy */
  --color-ink-800: #1F2329;
  --color-ink-700: #2A3038;   /* texto principal */
  --color-ink-600: #4A5260;
  --color-ink-500: #6B7480;   /* texto secundario */
  --color-ink-400: #97A0AC;   /* texto deshabilitado */
  --color-ink-300: #C8CDD4;
  --color-ink-200: #E2E5EA;   /* borde fuerte */
  --color-ink-150: #ECEEF2;   /* divisor */
  --color-ink-100: #F3F5F7;   /* superficie sutil */
  --color-ink-50:  #F8F9FA;   /* fondo app */
  --color-white:   #FFFFFF;

  /* Aliases canónicos (compatibilidad) */
  --color-text:       var(--color-ink-900);
  --color-text-dark:  var(--color-ink-800);
  --color-text-mid:   var(--color-ink-500);
  --color-bg:         var(--color-ink-50);
  --color-bg-warm:    #F0EDE6;
  --color-border:     var(--color-ink-200);

  /* Semánticos — escala mínima (bg suave / borde / texto fuerte) */
  --color-success-bg:    #E6F4EC;
  --color-success-border: #95C8AB;
  --color-success:       #1F7A4D;

  --color-warning-bg:    #FFF4E0;
  --color-warning-border: #F4C57A;
  --color-warning:       #B26A00;    /* contrast-pass sobre warning-bg */
  --color-warning-solid: #F4A261;    /* acento naranja existente */

  --color-danger-bg:     #FDECEE;
  --color-danger-border: #F2A0A8;
  --color-danger:        #C71F2C;    /* AA sobre blanco/danger-bg */
  --color-danger-solid:  #E63946;    /* canónico existente */

  --color-info-bg:       #E5F0FF;
  --color-info-border:   #9CC2F2;
  --color-info:          #1559B0;

  /* Aliases canónicos (compatibilidad) */
  --color-danger:        var(--color-danger-solid);  /* mantiene el valor original */
  --color-warning:       var(--color-warning-solid); /* mantiene el valor original */

  /* Focus ring */
  --color-focus-ring: rgba(45, 106, 79, 0.32);

  /* ====================================================
     2 · TIPOGRAFÍA — Inter, fluida via clamp()
     ==================================================== */

  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI',
               'Helvetica Neue', Arial, sans-serif;
  --font-mono: ui-monospace, 'SF Mono', SFMono-Regular, 'JetBrains Mono',
               Menlo, Consolas, monospace;

  /* Type scale — fluida entre 1024px y 1600px de viewport */
  --text-xs:   clamp(0.75rem,  0.71rem + 0.07vw, 0.8125rem);   /* 12 → 13 */
  --text-sm:   clamp(0.8125rem, 0.78rem + 0.10vw, 0.9375rem);  /* 13 → 15 */
  --text-base: clamp(0.9375rem, 0.91rem + 0.10vw, 1.0625rem);  /* 15 → 17 */
  --text-md:   clamp(1.0625rem, 1.03rem + 0.13vw, 1.1875rem);  /* 17 → 19 */
  --text-lg:   clamp(1.1875rem, 1.13rem + 0.20vw, 1.375rem);   /* 19 → 22 */
  --text-xl:   clamp(1.375rem,  1.30rem + 0.27vw, 1.625rem);   /* 22 → 26 */
  --text-2xl:  clamp(1.625rem,  1.50rem + 0.40vw, 2rem);       /* 26 → 32 */
  --text-3xl:  clamp(2rem,      1.81rem + 0.60vw, 2.5rem);     /* 32 → 40 */

  /* Numeric KPI tier — separado del scale general */
  --text-kpi:  clamp(1.75rem, 1.50rem + 0.80vw, 2.25rem);

  /* Pesos */
  --weight-regular: 400;
  --weight-medium:  500;
  --weight-semibold: 600;
  --weight-bold:    700;

  /* Line heights semánticos */
  --leading-tight:  1.2;   /* headings */
  --leading-snug:   1.35;  /* sub-heads, KPI labels */
  --leading-normal: 1.55;  /* cuerpo */
  --leading-relaxed: 1.7;  /* lectura larga */

  /* Tracking */
  --tracking-tight:  -0.01em;
  --tracking-normal: 0;
  --tracking-wide:   0.04em;   /* eyebrows / uppercase labels */

  /* ====================================================
     3 · SPACING — escala fluida 4-based
     ==================================================== */

  --space-0:  0;
  --space-1:  0.25rem;                                                /* 4px  */
  --space-2:  0.5rem;                                                 /* 8px  */
  --space-3:  0.75rem;                                                /* 12px */
  --space-4:  1rem;                                                   /* 16px */
  --space-5:  clamp(1.125rem, 1.08rem + 0.15vw, 1.25rem);             /* 18→20 */
  --space-6:  clamp(1.25rem,  1.18rem + 0.20vw, 1.5rem);              /* 20→24 */
  --space-7:  clamp(1.5rem,   1.40rem + 0.27vw, 1.75rem);             /* 24→28 */
  --space-8:  clamp(1.75rem,  1.63rem + 0.40vw, 2.25rem);             /* 28→36 */
  --space-9:  clamp(2rem,     1.81rem + 0.60vw, 2.5rem);              /* 32→40 */
  --space-10: clamp(2.5rem,   2.25rem + 0.80vw, 3rem);                /* 40→48 */
  --space-12: clamp(3rem,     2.65rem + 1.10vw, 3.75rem);             /* 48→60 */
  --space-16: clamp(4rem,     3.50rem + 1.60vw, 5rem);                /* 64→80 */

  /* ====================================================
     3.b · SPACING VERTICAL — escala fluida vh-based
     Para alturas críticas en pantallas de menor altura (1080p).
     Floor: viewport height 1024px. Techo: viewport height 1600px.
     Coherente con el sistema vw. La unidad `vh` en clamp() es 1% del
     viewport height (no un factor multiplicativo); ej. a viewport
     height 1024px, 0.69vh = 7.07px.
     Convive con --space-* (vw-based); usar SOLO cuando el constraint
     es vertical y el contenido apilado necesita comprimir.
     Ver DECISIONS_LOG 2026-05-26.
     ==================================================== */

  --space-v-2: clamp(0.25rem,  -3.11px + 0.69vh, 0.5rem);    /* 4→8   entre alturas 1024-1600px de viewport */
  --space-v-3: clamp(0.5rem,    0.89px + 0.69vh, 0.75rem);   /* 8→12  entre alturas 1024-1600px de viewport */
  --space-v-4: clamp(0.625rem, -0.65px + 1.04vh, 1rem);      /* 10→16 entre alturas 1024-1600px de viewport */
  --space-v-5: clamp(0.75rem,  -2.22px + 1.39vh, 1.25rem);   /* 12→20 entre alturas 1024-1600px de viewport */

  /* ====================================================
     4 · LAYOUT — anchos, gutters, container thresholds
     ==================================================== */

  --measure:        66ch;      /* ancho ideal de prosa */
  --gutter:         var(--space-6);
  --gutter-tight:   var(--space-4);
  --container-min:  20rem;     /* mínimo para que un layout fluido empiece a apilar */

  /* ====================================================
     5 · RADIUS
     ==================================================== */

  --radius-xs:  4px;
  --radius-sm:  6px;
  --radius-md:  8px;     /* default — botones, inputs, chips */
  --radius-lg:  12px;    /* cards, modales */
  --radius-xl:  16px;
  --radius-full: 999px;  /* pills, dots */

  /* ====================================================
     6 · ELEVATION (shadows)
     Tinted hacia el verde primario para coherencia.
     ==================================================== */

  --shadow-card:  rgba(0, 0, 0, 0.06);   /* canonical existente */

  --shadow-xs: 0 1px 2px rgba(17, 20, 24, 0.05);
  --shadow-sm: 0 1px 3px rgba(17, 20, 24, 0.06),
               0 1px 2px rgba(17, 20, 24, 0.04);
  --shadow-md: 0 2px 8px rgba(17, 20, 24, 0.06),
               0 1px 3px rgba(17, 20, 24, 0.04);
  --shadow-lg: 0 8px 24px rgba(17, 20, 24, 0.10),
               0 2px 6px rgba(17, 20, 24, 0.05);
  --shadow-xl: 0 16px 48px rgba(17, 20, 24, 0.14),
               0 4px 12px rgba(17, 20, 24, 0.06);

  /* Hover lift (botones, cards) */
  --shadow-primary-glow: 0 4px 12px rgba(45, 106, 79, 0.30);
  --shadow-danger-glow:  0 4px 12px rgba(230, 57, 70, 0.28);

  /* ====================================================
     7 · MOTION — duraciones, easings, transiciones
     ==================================================== */

  --duration-fast:   120ms;
  --duration-base:   180ms;
  --duration-slow:   280ms;
  --duration-slower: 420ms;

  --ease-out:    cubic-bezier(0.22, 1, 0.36, 1);
  --ease-in-out: cubic-bezier(0.65, 0, 0.35, 1);
  --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);

  --transition-base:  all var(--duration-base) var(--ease-out);
  --transition-color: color var(--duration-fast) var(--ease-out),
                      background-color var(--duration-fast) var(--ease-out),
                      border-color var(--duration-fast) var(--ease-out);

  /* ====================================================
     8 · Z-INDEX
     ==================================================== */

  --z-base:     1;
  --z-sticky:   100;
  --z-header:   200;
  --z-dropdown: 500;
  --z-overlay:  900;
  --z-modal:    1000;
  --z-toast:    1100;
  --z-tooltip:  1200;

  /* ====================================================
     9 · TARGETS de accesibilidad
     ==================================================== */

  --tap-target-min: 40px;
  --tap-target:     44px;
}

/* ==========================================================================
   REDUCED MOTION — colapsamos transiciones, no animaciones de estado
   ========================================================================== */
@media (prefers-reduced-motion: reduce) {
  :root {
    --duration-fast:   1ms;
    --duration-base:   1ms;
    --duration-slow:   1ms;
    --duration-slower: 1ms;
  }
  *,
  *::before,
  *::after {
    animation-duration: 1ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 1ms !important;
    scroll-behavior: auto !important;
  }
}
