/* ============================================
   CIS Tecnologia — Design Tokens
   Paleta institucional da identidade visual
   ============================================ */

:root {
  /* --- Colors --- */
  --color-primary:        #074682;
  --color-primary-dark:   #053562;
  --color-primary-light:  #0C62A5;
  --color-secondary:      #0C62A5;
  --color-neutral:        #848688;
  --color-neutral-light:  #B0B2B5;
  --color-neutral-dark:   #5A5C5E;

  --color-bg-white:       #FFFFFF;
  --color-bg-alt:         #F7F8FA;
  --color-bg-dark:        #0A1628;
  --color-bg-dark-alt:    #111D32;

  --color-text-primary:   #1A1A2E;
  --color-text-secondary: #4A4A5A;
  --color-text-muted:     #848688;
  --color-text-inverse:   #FFFFFF;
  --color-text-on-dark:   #E2E8F0;

  --color-cta:            #38A169;
  --color-cta-hover:      #2F8A5A;
  --color-cta-light:      #C6F6D5;

  --color-orange:         #E8833A;
  --color-orange-light:   rgba(232,131,58,0.12);
  --color-section-cta:    #1A365D;

  --color-accent:         #E8EEF5;
  --color-border:         #E2E5E9;
  --color-border-light:   #F0F1F3;

  /* --- Typography --- */
  --font-heading: 'Montserrat', sans-serif;
  --font-body:    'Inter', sans-serif;

  --fw-regular:   400;
  --fw-medium:    500;
  --fw-semibold:  600;
  --fw-bold:      700;
  --fw-extrabold: 800;

  /* Fluid type scale (clamp) */
  --text-xs:   clamp(0.75rem, 0.7rem + 0.25vw, 0.8125rem);
  --text-sm:   clamp(0.8125rem, 0.76rem + 0.27vw, 0.875rem);
  --text-base: clamp(0.9375rem, 0.88rem + 0.3vw, 1rem);
  --text-lg:   clamp(1.0625rem, 0.96rem + 0.5vw, 1.125rem);
  --text-xl:   clamp(1.1875rem, 1.04rem + 0.75vw, 1.375rem);
  --text-2xl:  clamp(1.375rem, 1.1rem + 1.4vw, 1.75rem);
  --text-3xl:  clamp(1.625rem, 1.2rem + 2.1vw, 2.25rem);
  --text-4xl:  clamp(2rem, 1.4rem + 3vw, 3rem);
  --text-5xl:  clamp(2.5rem, 1.6rem + 4.5vw, 4rem);

  --leading-tight:  1.2;
  --leading-snug:   1.35;
  --leading-normal: 1.6;
  --leading-relaxed: 1.75;

  --tracking-tight:  -0.02em;
  --tracking-normal:  0;
  --tracking-wide:    0.02em;
  --tracking-wider:   0.05em;

  /* --- Spacing (8px base) --- */
  --space-1:  0.25rem;   /* 4px */
  --space-2:  0.5rem;    /* 8px */
  --space-3:  0.75rem;   /* 12px */
  --space-4:  1rem;      /* 16px */
  --space-5:  1.25rem;   /* 20px */
  --space-6:  1.5rem;    /* 24px */
  --space-8:  2rem;      /* 32px */
  --space-10: 2.5rem;    /* 40px */
  --space-12: 3rem;      /* 48px */
  --space-16: 4rem;      /* 64px */
  --space-20: 5rem;      /* 80px */
  --space-24: 6rem;      /* 96px */
  --space-32: 8rem;      /* 128px */

  /* --- Layout --- */
  --container-sm:   640px;
  --container-md:   768px;
  --container-lg:   1024px;
  --container-xl:   1200px;
  --container-2xl:  1400px;
  --container-pad:  clamp(1rem, 3vw, 2rem);

  /* --- Borders & Radius --- */
  --radius-sm:  0.375rem;  /* 6px */
  --radius-md:  0.5rem;    /* 8px */
  --radius-lg:  0.75rem;   /* 12px */
  --radius-xl:  1rem;      /* 16px */
  --radius-2xl: 1.5rem;    /* 24px */
  --radius-full: 9999px;

  /* --- Shadows --- */
  --shadow-sm:  0 1px 2px rgba(0,0,0,0.05);
  --shadow-md:  0 4px 6px -1px rgba(0,0,0,0.07), 0 2px 4px -2px rgba(0,0,0,0.05);
  --shadow-lg:  0 10px 15px -3px rgba(0,0,0,0.08), 0 4px 6px -4px rgba(0,0,0,0.04);
  --shadow-xl:  0 20px 25px -5px rgba(0,0,0,0.08), 0 8px 10px -6px rgba(0,0,0,0.04);
  --shadow-card: 0 1px 3px rgba(0,0,0,0.06), 0 1px 2px rgba(0,0,0,0.04);
  --shadow-card-hover: 0 10px 30px rgba(7,70,130,0.12);

  /* --- Transitions --- */
  --ease-out:    cubic-bezier(0.16, 1, 0.3, 1);
  --ease-in-out: cubic-bezier(0.65, 0, 0.35, 1);
  --duration-fast:   150ms;
  --duration-base:   250ms;
  --duration-slow:   400ms;
  --duration-reveal:  600ms;

  /* --- Z-index --- */
  --z-base:    1;
  --z-nav:     100;
  --z-sticky:  200;
  --z-overlay: 300;
  --z-modal:   400;
  --z-whatsapp: 500;
}