body {
      margin: 0;
      font-family: Arial, sans-serif;
      color: #333;
      background: #f8f1eb;
    }
.container {
      max-width: 1000px;
      margin: auto;
      padding: 20px;
    }
header, .section, footer {
      margin-bottom: 40px;
    }
h1, h2, h3 {
      color: #3b4d44;
    }
.flex {
      display: flex;
      gap: 20px;
      flex-wrap: wrap;
    }
.card {
      background: #fff;
      padding: 20px;
      border-radius: 12px;
      box-shadow: 0 2px 8px rgba(0,0,0,0.1);
      flex: 1;
      min-width: 280px;
    }
.contact, .course-dates {
      background: #dfece5;
      padding: 20px;
      border-radius: 12px;
    }
ul {
      list-style: none;
      padding: 0;
    }
li::before {
      content: "\2713\0020";
      color: #3b4d44;
    }
.whatsapp {
      display: flex;
      align-items: center;
      gap: 10px;
    }
img.icon {
      width: 24px;
      height: auto;
    }
.qr {
      width: 100px;
    }
.flag {
      font-size: 20px;
    }