/* =============================================
   DecodeGear V8 — Design Tokens
   Carregado pelo tema V8 (functions.php, primeira folha do design system).
   NÃO existe em temas/en/decodegear-theme-v7/ — exclusivo do V8.
   Ver docs/restructure/43-design-system-v8.md para a documentação completa.
   Ver docs/restructure/49-template-map-v8.md para o mapa de integração ao tema.
   ============================================= */

:root {
  /* ---- Primitives reaproveitados do tema v7 (style.css) ---- */
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-full: 9999px;

  --shadow-sm: 0 1px 3px rgba(0,0,0,.08), 0 1px 2px rgba(0,0,0,.04);
  --shadow-md: 0 4px 16px rgba(0,0,0,.10), 0 2px 6px rgba(0,0,0,.06);
  --shadow-lg: 0 12px 40px rgba(0,0,0,.12), 0 4px 12px rgba(0,0,0,.06);

  /* Border system */
  --dg-border-w: 1px;
  --dg-border-w-2: 2px;

  /* ---- Spacing scale (8px base) ---- */
  --dg-space-1: 4px;
  --dg-space-2: 8px;
  --dg-space-3: 12px;
  --dg-space-4: 16px;
  --dg-space-5: 24px;
  --dg-space-6: 32px;
  --dg-space-7: 48px;
  --dg-space-8: 64px;
  --dg-space-9: 96px;

  /* ---- Container widths ---- */
  --dg-container-shell: 1280px;
  --dg-container-article: 720px;
  --dg-container-landing: 1120px;
  --dg-container-narrow: 640px;

  /* ---- Typography ---- */
  --dg-font-body: 'Inter', 'Segoe UI', system-ui, sans-serif;
  --dg-font-heading: 'Poppins', 'Inter', system-ui, sans-serif;
  --dg-font-mono: 'JetBrains Mono', 'Fira Code', monospace;

  --dg-text-xs: 0.75rem;
  --dg-text-sm: 0.875rem;
  --dg-text-base: 1rem;
  --dg-text-lg: 1.125rem;
  --dg-text-xl: 1.25rem;
  --dg-text-2xl: 1.5rem;
  --dg-text-3xl: 1.875rem;
  --dg-text-4xl: 2.25rem;
  --dg-text-5xl: 2.75rem;

  --dg-leading-tight: 1.2;
  --dg-leading-normal: 1.5;
  --dg-leading-relaxed: 1.7;

  /* ---- Semantic colors: LIGHT (default) ---- */
  --dg-bg: #FFFFFF;
  --dg-surface: #F8FAFC;
  --dg-surface-elevated: #FFFFFF;
  --dg-text: #0F172A;
  --dg-text-muted: #64748B;
  --dg-border: #E2E8F0;
  --dg-accent: #F97316;
  --dg-accent-hover: #EA6B0A;
  --dg-success: #10B981;
  --dg-warning: #F59E0B;
  --dg-danger: #EF4444;
  --dg-link: #2563EB;
  --dg-link-visited: #7C3AED;

  /* ---- Component tokens (derivam dos semânticos acima) ---- */
  --dg-surface-radius: var(--radius-md);
  --dg-surface-shadow: var(--shadow-sm);

  --dg-link-decoration: underline;
  --dg-link-decoration-thickness: 1px;
  --dg-link-underline-offset: 2px;

  --dg-button-primary-bg: var(--dg-accent);
  --dg-button-primary-text: #0B1220;
  --dg-button-primary-radius: var(--radius-full);
  --dg-button-secondary-bg: transparent;
  --dg-button-secondary-border: var(--dg-border);

  --dg-focus-outline: 2px solid var(--dg-accent);
  --dg-focus-outline-offset: 2px;

  --dg-card-bg: var(--dg-surface);
  --dg-card-border: var(--dg-border);
  --dg-card-radius: var(--radius-lg);
  --dg-card-shadow: var(--shadow-sm);
  --dg-card-shadow-hover: var(--shadow-md);

  --dg-input-bg: var(--dg-surface);
  --dg-input-border: var(--dg-border);
  --dg-input-radius: var(--radius-md);
  --dg-input-focus-border: var(--dg-accent);

  --dg-badge-topic-bg: rgba(37, 99, 235, 0.16);
  --dg-badge-topic-text: var(--dg-link);
  --dg-badge-type-bg: var(--dg-surface-elevated);
  --dg-badge-type-text: var(--dg-text-muted);
  --dg-badge-type-border: var(--dg-border);

  --dg-table-header-bg: var(--dg-surface);
  --dg-table-row-alt-bg: rgba(15, 23, 42, 0.03);
  --dg-table-border: var(--dg-border);
  /* cabeçalho "forte" das tabelas de conteúdo (.entry-content) — par com AA garantido (5.0.8, F8) */
  --dg-table-header-strong-bg: #2563EB;   /* branco sobre ele = 5.17:1 */
  --dg-table-header-strong-text: #FFFFFF;

  /* focus ring com color-mix; navegadores sem suporte caem no --dg-focus-outline sólido acima */
  --dg-focus-ring: 0 0 0 3px rgba(249, 115, 22, 0.45);
}

/* ---- Semantic colors: DARK (sistema, sem escolha explícita do usuário) ---- */
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --dg-bg: #0B1220;
    --dg-surface: #131B2C;
    --dg-surface-elevated: #1B2436;
    --dg-text: #E7ECF3;
    --dg-text-muted: #94A3B8;
    --dg-border: #263349;
    --dg-accent: #FB923C;
    --dg-accent-hover: #F97316;
    --dg-link: #60A5FA;
    --dg-link-visited: #A78BFA;

    --dg-table-row-alt-bg: rgba(231, 236, 243, 0.04);
    --dg-table-header-strong-bg: #58A6FF;   /* #0B1220 sobre ele = 7.4:1 (F8) */
    --dg-table-header-strong-text: #0B1220;
    --dg-badge-topic-bg: rgba(96, 165, 250, 0.18);
    --dg-focus-ring: 0 0 0 3px rgba(251, 146, 60, 0.45);
  }
}

/* ---- Semantic colors: DARK (toggle explícito do usuário — sempre vence) ---- */
:root[data-theme="dark"] {
  --dg-bg: #0B1220;
  --dg-surface: #131B2C;
  --dg-surface-elevated: #1B2436;
  --dg-text: #E7ECF3;
  --dg-text-muted: #94A3B8;
  --dg-border: #263349;
  --dg-accent: #FB923C;
  --dg-accent-hover: #F97316;
  --dg-link: #60A5FA;
  --dg-link-visited: #A78BFA;

  --dg-table-row-alt-bg: rgba(231, 236, 243, 0.04);
  --dg-table-header-strong-bg: #58A6FF;   /* #0B1220 sobre ele = 7.4:1 (F8) */
  --dg-table-header-strong-text: #0B1220;
  --dg-badge-topic-bg: rgba(96, 165, 250, 0.18);
  --dg-focus-ring: 0 0 0 3px rgba(251, 146, 60, 0.45);
}

/* ---- Focus visível obrigatório em todo elemento interativo (ver 45-accessibility-checklist.md) ---- */
a:focus-visible,
button:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible,
[tabindex]:focus-visible {
  outline: var(--dg-focus-outline);
  outline-offset: var(--dg-focus-outline-offset);
}

/* ---- Reduced motion (ver 44-performance-budget.md / política de JS) ---- */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}