.book-cover {
    font-family: 'Impact', Arial, sans-serif;
    background: linear-gradient(rgba(0,0,0,0.7), rgba(0,0,0,0.7)), url('https://via.placeholder.com/600x800/333/fff?text=Gym+Background') no-repeat center center;
    background-size: cover;
    color: white;
    padding: 40px 30px;
    max-width: 800px;
    margin: 20px auto;
    text-align: center;
    border-radius: 15px;
    box-shadow: 0 8px 30px rgba(0,0,0,0.5);
    position: relative;
    overflow: hidden;
  }
  .title {
    font-size: 72px;
    font-weight: bold;
    line-height: 1.1;
    letter-spacing: 1px;
    text-transform: uppercase;
    margin: 0;
    position: relative;
    z-index: 2;
  }
  .title span {
    display: block;
    border-bottom: 8px solid #e74c3c;
    padding-bottom: 5px;
    margin-bottom: 10px;
  }
  .subtitle {
    font-size: 18px;
    font-weight: normal;
    margin: 20px 0 15px;
    line-height: 1.4;
    max-width: 500px;
    text-align: left;
    margin-left: auto;
    margin-right: auto;
    position: relative;
    z-index: 2;
  }
  .author {
    font-size: 14px;
    font-style: italic;
    opacity: 0.9;
    margin-top: 10px;
    position: relative;
    z-index: 2;
  }
  .gym-image {
    position: absolute;
    bottom: 0;
    right: 0;
    width: 40%;
    height: auto;
    opacity: 0.8;
    transform: rotate(-5deg);
    z-index: 1;
  }
.barbell-article {
    font-family: 'Segoe UI', 'Helvetica Neue', Arial, sans-serif;
    max-width: 100%;
    margin: 40px auto;
    padding: 30px;
    background-color: #fff;
    border-radius: 12px;
    box-shadow: 0 6px 20px rgba(0,0,0,0.08);
    color: #2c3e50;
    line-height: 1.65;
  }

  .barbell-article h1 {
    font-family: 'Impact', 'Arial Black', sans-serif;
    font-size: 36px;
    text-align: center;
    margin: 0 0 25px;
    color: #e74c3c;
    text-transform: uppercase;
    letter-spacing: -0.5px;
  }

  .barbell-article p {
    margin: 0 0 18px;
    font-size: 17px;
  }

  .barbell-article .intro-block {
    font-style: italic;
    background-color: #f8f9fa;
    padding: 20px;
    border-left: 4px solid #3498db;
    margin: 20px 0 25px;
    border-radius: 0 8px 8px 0;
  }

  .barbell-article .expert-note {
    background-color: #fff8e1;
    padding: 15px;
    border-radius: 8px;
    font-size: 15px;
    margin-top: 20px;
    border: 1px solid #ffd54f;
  }

  .barbell-article .expert-note strong {
    color: #e67e22;
  }
.bar-guide {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    max-width: 800px;
    margin: 30px auto;
    padding: 25px;
    background: #fff;
    border-radius: 12px;
    box-shadow: 0 4px 18px rgba(0,0,0,0.1);
    color: #34495e;
    line-height: 1.6;
  }

  .bar-guide h2 {
    font-size: 24px;
    margin: 30px 0 15px;
    color: #2c3e50;
    border-bottom: 2px solid #3498db;
    padding-bottom: 6px;
  }

  .bar-guide .bar-name {
    font-weight: bold;
    color: #e74c3c;
    font-size: 20px;
    margin-top: 20px;
  }

  .bar-guide .use-for {
    font-weight: bold;
    margin: 8px 0 6px;
    color: #2980b9;
  }

  .bar-guide .expert-tip {
    background-color: #e8f4fc;
    padding: 12px 16px;
    border-left: 4px solid #3498db;
    margin: 10px 0 20px;
    border-radius: 0 6px 6px 0;
    font-style: italic;
    font-size: 15px;
  }

  .bar-guide .expert-tip::before {
    content: "💡 Совет эксперта: ";
    font-weight: bold;
    color: #2980b9;
  }