/* start base design */
* {
    margin: 0;
    padding: 0;
    border: none;
    outline: none;
  }
   
  :root {
    --foreground: rgba(255, 255, 255, 1);
    --background: rgba(0, 0, 0, 1);
    --footer: rgba(30, 30, 30, 1);
    --transparent: rgba(0, 0, 0, 0);
    --glas: rgba(21, 21, 21, 0.3);
    --purple: rgba(157, 71, 146, 1);
    --green: rgba(50, 119, 126, 1);
    --gray: rgba(255, 255, 255, 0.5);
    --shadow: rgba(0, 0, 0, 0.5);
  }
   
  html {
    height: 100%;
    font-family: -apple-system, system-ui, Helvetica, Arial, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol";
    font-size: 16px;
    font-weight: 200;
  }
   
  body {
    background: var(--foreground);
    color: var(--background);
    line-height: 1.5;
    -webkit-tap-highlight-color: transparent;
  }
   
  h1 {
    color: var(--green);
    font-size: 1.5rem;
    font-weight: 500;
    text-transform: uppercase;
    margin: 0 0 1rem 0;
  }
   
  h2 {
    font-size: 1.1rem;
    font-weight: 500;
    margin: 0;
  }

  .big-title {
    font-size: 2.5rem;
    font-weight: 200;
    color: var(--foreground);
  }

  p {
    margin: 0;
  }

  .container {
    max-width: 1000px;
    margin: 0 auto;
  }

  .shader {
    background: var(--glas);
    height: 100%;
    max-width: 1440px;
  }

  /* start button */
  button {
    margin-top: 2rem;
    padding: 0 2rem;
    height: 40px;
    width: auto;
    border-radius: 20px;
    color: var(--background);
    font-size: 21px;
    font-weight: 200;
    text-transform: uppercase;
    background: var(--foreground);
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.2);
    transition: 0.3s;
    cursor: pointer;
  }

  button:hover {
    background: var(--green);
    color: var(--foreground);
  }
  /* end button */
  /* end base design */
   
  /* start header design */
  #header {
    width: 100%;
    height: 50px;
    position: fixed;
    z-index: 1;
    background: var(--glas);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
  }
   
  .navbar {
    max-width: 1440px;
    margin: 0 auto;
    z-index: 2;
    display: flex;
    justify-content: space-between;
  }
  /* end header design */

  /* start home section */
  .home-img {
    max-width: 1440px;
    margin: 0 auto;
    min-height: 80vh;
    background-position: center center;
    background-size: cover;
  }
  /* end home section */

  /* start gallery section */
  .grid {
    max-width: 1440px;
    margin: 0 auto;
    display: grid;
    grid-gap: 2rem;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  }

  .card {
    height: 650px;
    background-position: center center;
    background-size: cover;
    border-radius: 1rem;
    box-shadow: 0 5px 19px var(--shadow);
  }
  /* end gallery section */

  /* start vision section */
  .portrait {
    height: auto;
    max-width: 1000px;
    margin: 0 auto;
    display: flex;
    flex-direction: column-reverse;
  }
  .portrait-r {
    flex-direction: column;
  }
     
  .image {
    height: 400px;
    width: 100%;
    margin: 1rem auto 0 auto;
    border: solid 0 var(--white);
    border-radius: 1rem;
    background-position: center center;
    background-size: cover;
  }
     
  .text {
    margin: 0 auto;
  }
  /* start vision section */

  /* start footer section */
  #footer {
    width: 100%;
    height: auto;
    background: var(--footer);
  }
  .link {
    text-decoration: none;
    color: var(--gray);
    transition: 0.3s;
  }

  .link:hover {
    color: var(--foreground);
  }

  .svg {
    margin: 3px 0;
    color: var(--gray);
    transition: 0.3s;
  }
  
  .svg:hover {
    color: var(--foreground);
    cursor: pointer;
  }
  
  .orientation {
    display: flex;
    flex-direction: column;
  }

  .center {
    margin: 0 auto;
    text-align: center;
    margin-bottom: 2rem;
  }
  /* end footer section */
   
  /* start responsive design */
  /* screen larger than 600px 2 column */
  @media (min-width: 600px) {
    html {
      font-size: 18px;
    }

    .big-title {
      font-size: 4rem;
    }

    .portrait {
      flex-direction: row;
    }
   
    .image-l {
      margin: 0 1rem 0 auto;
    }

    .image-r {
      margin: 0 0 1rem auto;
    }

    .orientation {
      flex-direction: row;
      justify-content: space-between;
    }

    .center {
      margin: 0;
      text-align: left;
      margin-bottom: 0;
    }
  }
   
  /* screen larger than 900px 3 columns */
  @media (min-width: 900px) {
    html {
      font-size: 20px;
    }
  }
  /* end responsive design */