* {
      margin: 0;
      padding: 0;
      box-sizing: border-box;
    }

    body {
      font-family: 'Poppins', sans-serif;
      background: hsl(0, 0%, 98%);
      min-height: 100vh;
      display: flex;
      align-items: center;
      justify-content: center;
    }

    .container {
      max-width: 1100px;
      padding: 40px 20px;
      text-align: center;
    }

    .header h1 {
      font-weight: 200;
      color: hsl(234, 12%, 34%);
      font-size: 32px;
    }

    .header h1 span {
      font-weight: 600;
      display: block;
    }

    .header p {
      max-width: 500px;
      margin: 20px auto 60px;
      color: hsl(229, 6%, 66%);
      font-size: 15px;
      line-height: 1.6;
    }

    .cards {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 30px;
      align-items: center;
    }

    .card {
      background: white;
      padding: 30px;
      border-radius: 8px;
      text-align: left;
      box-shadow: 0 10px 20px rgba(0,0,0,0.08);
      border-top: 4px solid;
    }

    .card h3 {
      color: hsl(234, 12%, 34%);
      margin-bottom: 10px;
      font-size: 20px;
    }

    .card p {
      color: hsl(229, 6%, 66%);
      font-size: 14px;
      line-height: 1.6;
    }

    .card img {
      margin-top: 40px;
      float: right;
    }

    .cyan { border-color: hsl(180, 62%, 55%); }
    .red { border-color: hsl(0, 78%, 62%); }
    .orange { border-color: hsl(34, 97%, 64%); }
    .blue { border-color: hsl(212, 86%, 64%); }

    .middle {
      display: flex;
      flex-direction: column;
      gap: 30px;
    }

    @media (max-width: 900px) {
      .cards {
        grid-template-columns: 1fr;
      }

      .card img {
        float: none;
        display: block;
        margin-left: auto;
      }
    }