* {
    box-sizing: border-box;
  }
  
  html {
    scroll-behavior: smooth;
  }
  
  body {
    margin: 0;
    background: #fafaf9;
    color: #1c1917;
    font-family: Arial, Helvetica, sans-serif;
    line-height: 1.5;
  }
  
  .container {
    width: min(1200px, calc(100% - 32px));
    margin: 0 auto;
  }
  
  main {
    padding: 36px 0;
  }
  
  
  /* heading */
  
  header {
    margin-bottom: 45px;
  }
  
  h1 {
    margin: 0;
  
    font-size: clamp(4.5rem, 10vw, 9rem);
    font-weight: 200;
    line-height: 1;
    letter-spacing: .04em;
  
    text-transform: lowercase;
  }
  
  .tagline {
    margin: 12px 0 5px;
  
    font-size: 1.2rem;
    letter-spacing: .05em;
  
    color: rgba(0, 0, 0, .7);
    text-transform: lowercase;
  }
  
  .small-link {
    color: inherit;
    font-size: .75rem;
    font-weight: 600;
    letter-spacing: .03em;
    text-decoration: none;
  }
  
  .small-link:hover {
    text-decoration: underline dashed;
  }
  
  
  /* examples */
  
  .example {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
  
    margin: 55px 0;
  }
  
  h2 {
    margin: 0 0 8px 8px;
  
    font-size: 1.8rem;
    font-weight: 400;
  }
  
  .conversation {
    width: fit-content;
    max-width: 520px;
  
    padding: 16px;
  
    background: #fff;
    border-radius: 8px;
  
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, .25);
  }
  
  .message {
    display: flex;
    align-items: center;
    gap: 12px;
  
    margin: 8px 0;
  }
  
  .message span {
    width: 38px;
    flex: 0 0 38px;
  
    font-size: 1.8rem;
    text-align: center;
  }
  
  .message p {
    margin: 0;
  }
  
  .copy {
    align-self: center;
  
    max-width: 520px;
  
    font-size: .9rem;
  }
  
  .copy p {
    margin: 0 0 12px;
  }
  
  .copy .point {
    font-size: 1rem;
    font-weight: 600;
  }
  
  
  /* bottom bit */
  
  .notes {
    max-width: 750px;
    margin: 80px 0 55px;
  }
  
  .notes h2 {
    margin-left: 0;
  }
  
  .notes p {
    margin: 12px 0;
  }
  
  
  /* footer */
  
  footer {
    padding: 10px 0 45px;
  
    font-size: .85rem;
  }
  
  footer p {
    margin: 7px 0;
  }
  
  footer a {
    color: inherit;
    font-weight: 600;
    text-decoration: none;
  }
  
  footer a:hover {
    text-decoration: underline dashed;
  }
  
  
  /* mobile */
  
  @media (max-width: 760px) {
  
    main {
      padding-top: 18px;
    }
  
    h1 {
      font-size: clamp(4rem, 18vw, 6.5rem);
    }
  
    .tagline {
      font-size: 1rem;
    }
  
    .example {
      grid-template-columns: 1fr;
      gap: 20px;
  
      margin: 45px 0 65px;
    }
  
    .conversation {
      max-width: 100%;
    }
  
  }
  
  
  /* dark mode */
  
  @media (prefers-color-scheme: dark) {
  
    body {
      background: #0c0a09;
      color: #fafafa;
    }
  
    .tagline {
      color: rgba(255, 255, 255, .7);
    }
  
    .conversation {
      background: #1c1917;
    }
  
  }