body {
    background-color: #1e1e1e;
    color: #f8f8f8;
    font-family: sans-serif;
    margin: 0;
    padding: 0;
}
header {
    text-align: center;
    padding-bottom: 1em;
}
.banner {
    width: 100%;
    height: auto;
}
.logo-title {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1em;
    margin-top: 1em;
}
.logo {
    height: 60px;
}
.lang-switcher {
    margin-top: 1em;
}
.lang-switcher button {
    background-color: #333;
    color: #fff;
    border: none;
    padding: 0.5em 1em;
    margin: 0 0.5em;
    cursor: pointer;
}
main {
    padding: 2em;
}
a {
    color: #4da3ff;
}
section {
    margin-bottom: 2em;
}
    .crypto-table {
      width: 100%;
      border-collapse: collapse;
      table-layout: fixed;
    }
    .crypto-table td {
      vertical-align: top;
      padding: 1em 0.5em;
    }
    .cell_logo {
      width: 40px;
      text-align: center;
    }
    .cell_text {
      width: 100%;
    }
    .cell_qr {
      width: 120px;
      text-align: right;
    }
    .crypto-table code {
      display: inline-block;
      background: #222;
      padding: 0.3em 0.5em;
      border-radius: 4px;
      font-size: 0.9em;
      word-break: break-all;
      line-height: 1.4;
    }
    .crypto-table button {
      background: #00ffcc;
      border: none;
      padding: 0.3em 0.6em;
      margin-left: 0.5em;
      font-weight: bold;
      cursor: pointer;
      color: #000;
    }