/* Заголовок статьи */
    .header {
      background: #007BFF;
      color: white;
      padding: 15px 25px;
      border-radius: 8px 8px 0 0;
      margin-bottom: 20px;
      position: relative;
    }

    .header p {
      font-size: 1.1rem;
      font-weight: 500;
      margin-bottom: 8px;
    }

    .author {
      font-size: 0.9rem;
      opacity: 0.8;
      letter-spacing: 0.5px;
      text-transform: uppercase;
      margin-top: 10px;
    }
    /* Блок заголовка "Tweak Your Back" */
    .title-box {
      background: #007BFF;
      color: white;
      padding: 20px;
      border-radius: 8px;
      text-align: center;
      margin-top: 20px;
      position: relative;
      max-width: 100%;
      margin-left: auto;
      margin-right: 0;
    }

    .title-box h2 {
      font-size: 3.8rem;
      font-weight: 900;
      margin: 0;
      line-height: 1;
text-shadow: 2px 2px 4px rgba(0,0,0,2.0);

    }

    .title-box span {
      font-size: 0.9rem;
      background: rgba(255,255,255,0.2);
      padding: 3px 8px;
      border-radius: 4px;
      display: inline-block;
      margin-top: 10px;
    }

   

    @media (max-width: 600px) {
      .header {
        padding: 10px 15px;
      }
      .header p {
        font-size: 1rem;
      }
      .title-box h2 {
        font-size: 2rem;
      }
    }
.intro {
      font-size: 1.1rem;
      margin-bottom: 40px;
      text-align: justify;
    }

    .exercise {
      margin-bottom: 50px;
      padding: 25px;
      background: #fafafa;
      border-radius: 10px;
      border-left: 4px solid #007BFF;
      transition: all 0.3s ease;
    }

    .exercise:hover {
      background: #f0f8ff;
      transform: translateY(-2px);
      box-shadow: 0 4px 12px rgba(0,0,0,0.08);
    }

    .exercise h2 {
      font-size: 1.8rem;
      color: #111;
      margin-bottom: 12px;
    }

    .meta {
      font-size: 0.95rem;
      color: #007BFF;
      font-weight: bold;
      margin-bottom: 12px;
      font-family: monospace;
    }

    .take, .tweak {
      margin-bottom: 12px;
      font-size: 1.05rem;
    }

    .take strong, .tweak strong {
      color: #0056b3;
    }

    .split-table {
      margin-top: 40px;
    }

    .split-table h2 {
      text-align: center;
      margin-bottom: 20px;
      color: #007BFF;
    }

    table {
      width: 100%;
      border-collapse: collapse;
      margin-top: 15px;
    }

    th, td {
      padding: 12px;
      text-align: center;
      border: 1px solid #ddd;
    }

    th {
      background: #007BFF;
      color: white;
    }

    tr:nth-child(even) {
      background: #f5f9ff;
    }

    @media (max-width: 768px) {
      
      h1 {
        font-size: 2rem;
      }
      .exercise h2 {
        font-size: 1.5rem;
      }
      table, thead, tbody, th, td, tr {
        display: block;
      }
      thead tr {
        position: absolute;
        top: -9999px;
        left: -9999px;
      }
      tr {
        border: 1px solid #ccc;
        margin-bottom: 15px;
        padding: 15px;
        display: block;
      }
      td {
        text-align: right;
        padding-left: 50%;
        position: relative;
        border: none;
      }
      td:before {
        content: attr(data-label);
        position: absolute;
        left: 10px;
        width: 45%;
        padding-right: 10px;
        white-space: nowrap;
        font-weight: bold;
        color: #007BFF;
      }
    }