.header {
      background: url('https://via.placeholder.com/900x450/ffffff/000000?text=BIG+WHEELS+TURNIN%27') no-repeat center center;
      background-size: cover;
      padding: 60px 20px;
      color: white;
      position: relative;
      text-shadow: 2px 2px 4px rgba(0,0,0,0.7);
      border-radius: 8px;
    }
    h1 {
      font-size: 52px;
      font-weight: bold;
      margin: 0;
      line-height: 1.1;
      text-transform: uppercase;
      text-align: center;
      color: #000;
    }
    .subtitle {
      font-size: 20px;
      background: rgba(255, 255, 255, 0.9);
      display: inline-block;
      padding: 12px 20px;
      margin-top: 15px;
      border-radius: 4px;
      font-weight: normal;
      max-width: 100%;
      margin-left: auto;
      margin-right: auto;
      text-align: left;
      color: #d42a2a;
    }
    .intro {
      font-style: normal;
      background: #fff9e6;
      padding: 18px;
      border-left: 4px solid #d4af37;
      border-radius: 0 6px 6px 0;
      margin: 10px auto;
      max-width: 100%;
      text-align: justify;
      font-size: 16px;
    }
    @media (max-width: 600px) {
      h1 {
        font-size: 30px;
      }
      .subtitle {
        font-size: 16px;
        padding: 8px 12px;
      }
      .intro {
        padding: 14px;
        font-size: 15px;
      }
    }
 p {
      font-size: 16px;
      margin-bottom: 18px;
      text-align: justify;
    }
    .byline {
      font-style: italic;
      color: #666;
      text-align: right;
      margin-top: 20px;
      font-size: 15px;
    }

.section {
      margin: 30px 0;
    }
    .section-title {
      font-size: 20px;
      font-weight: bold;
      color: #222;
      margin: 25px 0 12px 0;
      padding-left: 10px;
      border-left: 3px solid #d4af37;
    }
    .quote {
      background: #fff9e6;
      border-left: 4px solid #d4af37;
      padding: 16px;
      margin: 20px 0;
      border-radius: 0 6px 6px 0;
      font-style: italic;
      font-size: 16px;
    }
    .routine {
      background: #f5f9f5;
      border-left: 0px solid #2a752a;
      padding: 20px;
      border-radius: 0 6px 6px 0;
      margin: 30px 0;
    }
    .routine h2 {
      margin-top: 0;
      color: #222;
      font-size: 20px;
    }
    table {
      width: 100%;
      border-collapse: collapse;
      margin: 15px 0;
    }
    th, td {
      border: 1px solid #ccc;
      padding: 10px;
      text-align: left;
      font-size: 15px;
    }
    th {
      background-color: #f0f0f0;
    }
    .profile {
      background: #eef7ff;
      border-left: 4px solid #4a7aa5;
      padding: 18px;
      border-radius: 0 6px 6px 0;
      margin: 30px 0;
    }
    .profile h2 {
      margin-top: 0;
      color: #222;
      font-size: 20px;
    }
    .profile dl {
      margin: 0;
    }
    .profile dt {
      font-weight: bold;
      margin-top: 8px;
    }
    .profile dd {
      margin-left: 0;
    }
    @media (max-width: 600px) {
     
      h1 {
        font-size: 22px;
      }
      p, .quote, .section-title {
        font-size: 15px;
      }
      th, td {
        font-size: 14px;
        padding: 8px;
      }
    }
.exercise {
      margin: 30px 0;
      padding-bottom: 20px;
      border-bottom: 1px dashed #ccc;
    }
    .exercise-title {
      font-size: 20px;
      font-weight: bold;
      color: #222;
      margin: 0 0 10px 0;
      padding-left: 10px;
      border-left: 4px solid #2a752a;
    }
    .exercise-meta {
      font-size: 16px;
      color: #555;
      margin-bottom: 12px;
      font-style: italic;
    }
    .exercise-body {
      font-size: 16px;
      text-align: justify;
    }
    .quote {
      background: #fff9e6;
      border-left: 4px solid #d4af37;
      padding: 16px;
      margin: 15px 0;
      border-radius: 0 6px 6px 0;
      font-style: NORMAL;
    }
    @media (max-width: 600px) {
      
      h1 {
        font-size: 22px;
      }
      .exercise-title {
        font-size: 18px;
      }
      .exercise-body, .exercise-meta {
        font-size: 15px;
      }
    }