/* ============================================
   LDPERJ - Variáveis (mobile-first)
   ============================================ */

:root {
  /* Cores - identidade azul (#2a9df4) */
  --color-primary: #2a9df4;
  --color-primary-light: #5eb4f7;
  --color-primary-dark: #1a7bd4;
  --color-accent: #7fc5f9;
  --color-accent-dim: #2a9df4;
  --color-surface: #eef6fc;
  --color-surface-alt: #e3f0fa;
  --color-bg: #ffffff;
  --color-text: #1a1a1a;
  --color-text-muted: #4a5568;
  --color-border: #cbd5e0;
  --color-white: #ffffff;
  --color-black: #0a0a0a;

  /* Tipografia */
  --font-sans: 'Outfit', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-mono: 'JetBrains Mono', monospace;

  --text-xs: 0.75rem;
  --text-sm: 0.875rem;
  --text-base: 1rem;
  --text-lg: 1.125rem;
  --text-xl: 1.25rem;
  --text-2xl: 1.5rem;
  --text-3xl: 1.875rem;
  --text-4xl: 2.25rem;
  --text-5xl: 3rem;

  --line-tight: 1.25;
  --line-normal: 1.5;
  --line-relaxed: 1.65;

  /* Espaçamento (base 4px) */
  --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;

  /* Layout */
  --container-max: 72rem;
  --container-padding: 1rem;
  --header-height: 3.5rem;
  --top-bar-height: 2rem;

  /* Bordas e sombras */
  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --radius-full: 9999px;
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.06);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.08), 0 2px 4px -2px rgba(0, 0, 0, 0.04);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.08), 0 4px 6px -4px rgba(0, 0, 0, 0.04);

  /* Transições */
  --ease-out: cubic-bezier(0.33, 1, 0.68, 1);
  --duration-fast: 150ms;
  --duration-normal: 250ms;
  --duration-slow: 350ms;

  /* Z-index */
  --z-top-bar: 100;
  --z-header: 200;
  --z-nav-overlay: 180;
  --z-whatsapp: 300;
}

/* Tablet e acima */
@media (min-width: 768px) {
  :root {
    --container-padding: 1.5rem;
    --header-height: 4.5rem;
  }
}

/* Desktop */
@media (min-width: 1024px) {
  :root {
    --container-padding: 2rem;
  }
}