* {
    margin: 0;
    padding: 0;
    border: 0;
    outline: 0;
    text-decoration: none;
    list-style: none;
    box-sizing: border-box;
  }
  
  :root {
    --color-primary: #0a8efa;
    --color-danger: #f75842;
    --color-danger-variant: rgba(247, 88, 66, 0.4);
    --color-white: #fff;
    --color-light: rgba(255, 255, 255, 0.7);
    --color-black: rgb(8, 104, 139);
    --color-bg: #1f2641;
    --color-bg1: #2e3267;
    --color-bg2: #424890;
  
    --container-width-lg: 80%;
    --container-width-md: 90%;
    --container-width-sm: 94%;
  
    --transition: all 400ms ease;
  }
  
  body {
    font-family: "Montserrat", sans-serif;
    line-height: 1.7;
    color: var(--color-white);
    background: var(--color-black);
  }
  
  .container {
    width: var(--container-width-lg);
    margin: 0 auto;
  }
  
  section {
    padding: 6rem 0;
  }
  
  section h2 {
    text-align: center;
    margin-bottom: 4rem;
  }
  
  h1,
  h2,
  h3,
  h4,
  h5 {
    line-height: 1.2;
  }
  
  h1 {
    font-size: 2.4rem;
  }
  
  h2 {
    font-size: 2rem;
  }
  
  h3 {
    font-size: 1.6rem;
  }
  
  h4 {
    font-size: 1.3rem;
  }
  
  a {
    color: var(--color-white);
  }
  
  img {
    width: 100%;
    display: block;
    object-fit: cover;
  }
  
  .btn {
    background: var(--color-white);
    color: var(--color-primary);
    padding: 10px;
    border-radius: 10px;
    border: 1px solid white;
    font-weight: 500;
    transition: var(--transition);
  }
  
  .btn:hover {
    background: transparent;
    color: var(--color-white);
    border-color: var(--color-white);
  }
  
  .btn-primary {
    background: var(--color-white);
    color: var(--color-black);
  }
  
  /* =================== NAVBAR ===================== */
  nav {
    background: transparent;
    width: 100vw;
    height: 5rem;
    position: fixed;
    top: 0;
    z-index: 11;
  }
  
  /* change navbar styles on scroll using javascript */
  .window-scroll {
    background: var(--color-primary);
    box-shadow: 0 1rem 2rem rgba(0, 0, 0, 0.2);
  }
  
  .nav__container {
    height: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
  }
  
  nav button {
    display: none;
  }
  
  .nav__menu {
    display: flex;
    align-items: center;
    gap: 4rem;
  }
  
  .nav__menu a {
    font-size: 0.9rem;
    transition: var(--transition);
  }
  
  .nav__menu a:hover {
    color: var(--color-bg2);
  }
  
  header {
    position: relative;
    top: 5rem;
    overflow: hidden;
    height: 70vh;
    margin-bottom: 5rem;
  }
  
  .header__container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    align-items: center;
    gap: 5rem;
    height: 100%;
  }
  
  .header__left p {
    margin: 1rem 0 2.4rem;
  }