body {
  margin: 0;
  padding: 4.5rem 0 0 0;
  font-family: 'Open Sans', sans-serif, -apple-system, BlinkMacSystemFont,
    'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Helvetica Neue';
  background-color: var(--color-black);
  font-size: 1rem;
  color: var(--color-white);
  font-weight: var(--weight-normal);
  letter-spacing: normal;
  line-height: normal;
  box-sizing: border-box;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

:root {
  /* layout */
  --spacing-sides: var(--spacing-300);
  --spacing-sides-responsive: var(--spacing-100);
  /* space */
  --spacing-400: 4rem;
  --spacing-300: 3rem;
  --spacing-200: 2rem;
  --spacing-150: 1.5rem;
  --spacing-100: 1rem;
  --spacing-50: 0.5rem;
  /* color */
  --color-bg-primary: #fff;
  --color-bg-contact: #f6f3e8;
  --color-bg-secondary: #fdfaf5;
  --color-border: #e2e2e2;
  --color-copyright: #7d7d7d;
  --color-black: #111;
  --color-white: #fff;
  /* weight */
  --weight-normal: 400;
  --text-bold: 700;
  /* border-radius */
  --border-radius-btn: 0.3rem;
  --border-radius-primary: 0.5rem;
  --border-radius-secondary: 0.5rem;
  /* title */
  --title-h1: 3rem;
  --title-h2: 2.5rem;
  --title-h3: 2rem;
  --title-h4: 1.5rem;
  /* text */
  --text-hero: 3.2rem;
  --text-big: 1.2rem;
  --text-normal: 1rem;
  --text-small: 0.8rem;
}