/* ==========================================================================
   variables.css — Design Tokens
   ========================================================================== */

:root {
  /* --- Palette ---
   * Base clara: creme quente #f6f3ee
   * Contraste escuro: azul-tinta #1a2e44 (mais profundo e moderno)
   * Dominó: vermelho-tijolo #c0392b + laranja #e67e22 (gradiente de identidade)
   * Cubo: verde-azulado #27ae60 / teal #16a085
   * Vídeos: fundo quase-preto #111820 com detalhes neon teal
   * Acentos: âmbar #d4870e mantido como ouro geral
   */

  /* Backgrounds */
  --color-bg-primary:       #f6f3ee;
  --color-bg-secondary:     #1a2e44;
  --color-bg-dark:          #111820;
  --color-bg-card:          #ffffff;
  --color-bg-card-hover:    #faf7f2;
  --color-bg-subtle:        #eceae4;

  /* Dominó — vermelho/laranja */
  --color-domino-red:       #c0392b;
  --color-domino-orange:    #e67e22;
  --color-domino-light:     #fdf0e8;

  /* Cubo — verde/teal */
  --color-cube-green:       #27ae60;
  --color-cube-teal:        #16a085;
  --color-cube-light:       #e8f8f0;

  /* Ouro geral */
  --color-accent-gold:      #d4870e;
  --color-accent-gold-dim:  #b36c08;
  --color-accent-gold-light:#f0a030;
  --color-accent-gold-bg:   #fef3dc;

  /* Textos claro */
  --color-text-primary:     #1a1a1a;
  --color-text-secondary:   #4a5568;
  --color-text-muted:       #7a8899;
  --color-text-inverse:     #ffffff;

  /* Textos escuro */
  --color-text-on-dark-primary:   #f0ece4;
  --color-text-on-dark-secondary: #adc4d8;
  --color-text-on-dark-muted:     #6a8ca8;

  /* Bordas */
  --color-border:         #ddd8ce;
  --color-border-strong:  #c5bfb3;

  /* Sombras */
  --shadow-xs:     0 1px 3px  rgba(0,0,0,0.06);
  --shadow-sm:     0 2px 8px  rgba(0,0,0,0.08);
  --shadow-md:     0 6px 20px rgba(0,0,0,0.12);
  --shadow-lg:     0 16px 48px rgba(0,0,0,0.16);
  --shadow-domino: 0 8px 32px rgba(192,57,43,0.30);
  --shadow-cube:   0 8px 32px rgba(22,160,133,0.28);
  --shadow-gold:   0 4px 20px rgba(212,135,14,0.25);

  /* Typography */
  --font-display: 'Playfair Display', Georgia, serif;
  --font-body:    'Source Serif 4', Georgia, serif;
  --font-ui:      'DM Sans', sans-serif;

  --font-size-xs:   0.75rem;
  --font-size-sm:   0.875rem;
  --font-size-base: 1rem;
  --font-size-md:   1.125rem;
  --font-size-lg:   1.25rem;
  --font-size-xl:   1.5rem;
  --font-size-2xl:  2rem;
  --font-size-3xl:  2.75rem;
  --font-size-4xl:  3.5rem;
  --font-size-5xl:  4.5rem;

  --font-weight-normal:   400;
  --font-weight-medium:   500;
  --font-weight-semibold: 600;
  --font-weight-bold:     700;

  --line-height-tight:  1.2;
  --line-height-snug:   1.4;
  --line-height-normal: 1.6;
  --line-height-loose:  1.8;

  /* Spacing (base 8px) */
  --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;

  /* Border Radius */
  --radius-sm:   4px;
  --radius-md:   8px;
  --radius-lg:   16px;
  --radius-xl:   24px;
  --radius-2xl:  32px;
  --radius-full: 9999px;

  /* Transitions */
  --transition-fast:   150ms ease;
  --transition-normal: 300ms ease;
  --transition-slow:   500ms ease;

  /* Layout */
  --container-max:    1140px;
  --container-narrow: 760px;
  --navbar-height:    68px;

  /* Z-index */
  --z-base:    0;
  --z-raised:  10;
  --z-sticky:  100;
  --z-overlay: 200;
  --z-modal:   300;
}