:root {
  /* ==========================================================================
   * SINTETIZZA DESIGN SYSTEM - TOKENS PROFISSIONAIS
   * Identidade: Preto Obsidiana, Cinzas Corporativos e Amarelo Dourado Sintetizza
   * ========================================================================== */

  /* Brand Colors */
  --color-brand: #FA5A00;
  --color-brand-primary: #FA5A00;
  --color-brand-hover: #D94D00;
  --color-brand-primary-hover: #D94D00;
  --color-brand-active: #B83F00;
  --color-brand-light: #FFE8DB;
  --color-brand-primary-light: #FFE8DB;
  --color-brand-subtle: #FFF5EF;
  --color-brand-primary-subtle: #FFF5EF;
  --color-brand-border: #FFC5A3;
  --color-brand-primary-border: #FFC5A3;
  --color-brand-glow: rgba(250, 90, 0, 0.28);
  --color-brand-primary-glow: rgba(250, 90, 0, 0.28);
  --color-brand-dark: #A63800;

  /* Neutral Dark Palette (Executivo & Profissional) */
  --color-slate-950: #2D3345;
  --color-slate-900: #363D52;
  --color-slate-850: #424A60;
  --color-slate-800: #525B72;
  --color-slate-700: #4C566D;
  --color-slate-600: #657088;
  --color-slate-500: #7B8498;
  --color-slate-400: #94A3B8;
  --color-slate-300: #CBD5E1;
  --color-slate-200: #E2E8F0;
  --color-slate-100: #F1F5F9;
  --color-slate-50:  #F8FAFC;
  --color-white:     #FFFFFF;

  /* Light Surface Palette (Catálogo e Áreas Claras) */
  --color-bg-light: #F4F5F5;
  --color-bg-alt: #E1F2FB;
  --color-surface-light: #FFFFFF;
  --color-surface-alt: #F7FAFC;
  --color-border-light: #DCE4E9;
  --color-border-strong: #C8D4DC;

  /* Dark Surface Palette (Hero & Seções de Autoridade) */
  --color-bg-dark: #2D3345;
  --color-surface-dark: #363D52;
  --color-surface-dark-card: #30374B;
  --color-surface-dark-hover: #424A60;
  --color-border-dark: rgba(255, 255, 255, 0.08);
  --color-border-dark-strong: rgba(255, 255, 255, 0.16);

  /* Typography Colors */
  --color-text-primary: #2D3345;
  --color-text-secondary: #657088;
  --color-text-muted: #7B8498;
  --color-text-light: #F8FAFC;
  --color-text-light-secondary: #CBD5E1;
  --color-text-light-muted: #94A3B8;
  --color-text-light-subtle: #64748B;

  /* Feedback & Actions */
  --color-success: #16A34A;
  --color-success-soft: #DCFCE7;
  --color-success-border: #86EFAC;
  --color-whatsapp: #25D366;
  --color-whatsapp-hover: #20BA5A;
  --color-whatsapp-glow: rgba(37, 211, 102, 0.35);
  --color-danger: #DC2626;
  --color-danger-soft: #FEE2E2;
  --color-warning: #D97706;
  --color-warning-soft: #FFFBEB;
  --color-info: #2563EB;
  --color-info-soft: #EFF6FF;

  /* Typography */
  --font-family-base: 'Poppins', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  --font-family-heading: 'Poppins', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;

  /* Spacing Scale */
  --space-2xs: 4px;
  --space-xs: 8px;
  --space-sm: 12px;
  --space-md: 16px;
  --space-lg: 24px;
  --space-xl: 32px;
  --space-2xl: 48px;
  --space-3xl: 64px;
  --space-4xl: 96px;

  /* Radii */
  --radius-xs: 6px;
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 20px;
  --radius-pill: 9999px;

  /* Shadows */
  --shadow-xs: 0 1px 2px rgba(15, 23, 42, 0.04);
  --shadow-sm: 0 2px 6px rgba(15, 23, 42, 0.06);
  --shadow-card: 0 4px 20px -2px rgba(15, 23, 42, 0.08), 0 2px 6px -1px rgba(15, 23, 42, 0.04);
  --shadow-card-hover: 0 12px 30px -4px rgba(15, 23, 42, 0.12), 0 4px 10px -2px rgba(15, 23, 42, 0.06);
  --shadow-dark-card: 0 10px 30px rgba(0, 0, 0, 0.4);
  --shadow-brand: 0 8px 20px rgba(250, 90, 0, 0.3);
  --shadow-dropdown: 0 16px 40px rgba(15, 23, 42, 0.15);

  /* Transitions */
  --ease-out-expo: cubic-bezier(0.16, 1, 0.3, 1);
  --transition-fast: 0.18s var(--ease-out-expo);
  --transition-normal: 0.32s var(--ease-out-expo);
  --transition-smooth: 0.5s var(--ease-out-expo);
  --transition-base: var(--transition-normal);

  /* Layout */
  --container-max-width: 1280px;
  --container-padding: 24px;
  --header-height: 80px;
}