body {
      margin: 0;
      font-family: 'Courier New', Courier, monospace;
      background-color: #fff;
      color: #000;
    }
    .container {
      max-width: 800px;
      margin: 40px auto;
      padding: 40px;
      border: 1px solid #ccc;
      border-radius: 8px;
    }
    h1 {
      font-size: 24px;
      border-bottom: 1px solid #ccc;
      padding-bottom: 10px;
    }
    label {
      display: block;
      margin-top: 20px;
      font-weight: bold;
    }
    input[type="text"],
    input[type="number"] {
      width: 100%;
      padding: 10px;
      margin-top: 8px;
      border: 1px solid #aaa;
      border-radius: 4px;
      font-family: inherit;
    }
    .slider-container {
      margin-top: 20px;
    }
    .slider-label {
      display: flex;
      justify-content: space-between;
      font-size: 13px;
      margin-bottom: 5px;
    }
    input[type="range"] {
      width: 100%;
    }
    .value-display {
      text-align: right;
      font-size: 14px;
      margin-top: 5px;
    }
    button {
      margin-top: 30px;
      padding: 12px 20px;
      background-color: black;
      color: white;
      border: none;
      border-radius: 4px;
      font-family: inherit;
      cursor: pointer;
    }
    button:hover {
      background-color: #333;
    }

.seo-section {
  max-width: 760px;
  margin: 60px auto;
  padding: 20px;
  font-family: 'Courier New', Courier, monospace;
  line-height: 1.6;
  color: #111;
}

.seo-section h1,
.seo-section h2,
.seo-section h3 {
  margin-top: 30px;
  margin-bottom: 10px;
  font-weight: bold;
}

.seo-section p {
  margin-bottom: 20px;
}



.logo-header {
  display: flex;
  align-items: center;
  justify-content: flex-start;
  padding: 20px 0;
  width: 100%;
}

.logo-img {
  height: 40px;
  display: block;
  margin-left: 20px; /* базовый отступ слева на мобильных */
}

/* Адаптивное центрирование на больших экранах */
@media (min-width: 768px) {
  .logo-header {
    justify-content: center;
  }

  .logo-img {
    margin-left: -120px; /* сдвигает логотип чуть левее центра */
  }
}

.result-box {
  margin-top: 20px;
  font-family: 'Courier New', Courier, monospace;
  font-size: 16px;
  color: #111;
}

.footer {
  margin-top: 80px;
  font-size: 14px;
  text-align: center;
  color: #777;
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
  font-family: 'Courier New', Courier, monospace;
}
.info-block {
  max-width: 800px;
  margin: 40px auto;
  padding: 20px;
  border: 1px solid #ddd;
  border-radius: 6px;
  background-color: #f9f9f9;
  font-family: 'Courier New', Courier, monospace;
}

.info-block .label {
  font-weight: bold;
  font-size: 16px;
  margin-bottom: 10px;
}

.info-block .value p {
  margin: 6px 0;
}

.info-block a {
  color: #000;
  text-decoration: none;
}

.info-block a:hover {
  text-decoration: underline;
}