:root {
  /* Màu sắc (Colors) */
  --tkp-color-primary: #E30613;
  --tkp-color-text-main: #151A20;
  --tkp-color-bg-dark: #111820;
  --tkp-color-bg-light: #F5F6F7;
  --tkp-color-border: #E3E6E8;
  --tkp-color-white: #FFFFFF;

  /* Font chữ (Typography) */
  --tkp-font-heading: 'Oswald', sans-serif;
  --tkp-font-body: 'Inter', Arial, sans-serif;

  /* Kích thước & Bố cục (Layout) */
  --tkp-container-max: 1440px;
  --tkp-spacing-xs: 4px;
  --tkp-spacing-sm: 8px;
  --tkp-spacing-md: 16px;
  --tkp-spacing-lg: 24px;
  --tkp-spacing-xl: 32px;
  --tkp-spacing-xxl: 48px;
  
  /* Chuyển động (Transitions) */
  --tkp-transition: 0.3s ease-in-out;
  --tkp-transition-fast: 0.15s ease;
}