body {
  background: radial-gradient(ellipse at center, #0b0f2f 0%, #000 100%);
  font-family: 'Share Tech Mono', monospace;
  margin: 0;
  padding: 0;
  text-shadow: 0 0 2px #00d8ff;
}
h1 {
  color: #ffffff;
  text-align: center;
  text-shadow: 0 0 8px #0ff;
  font-size: 2em;
  letter-spacing: 0.1em;
  margin-bottom: 20px;
}
p {
  color: #ffffff;
  text-align: center;
  text-shadow: 0 0 8px #0ff;
}
label {
color: #00d8ff;
}
table {
  background-color: rgba(255, 255, 255, 0.02);
  box-shadow: 0 0 10px rgba(0, 216, 255, 0.3);
  border: 1px solid rgba(0, 216, 255, 0.2);
  border-radius: 8px;
  overflow: hidden;
}
.spacing-div {
  background-color: rgba(255, 255, 255, 0.03);
  padding: 10px;
  border: 1px solid rgba(0, 216, 255, 0.2);
  border-radius: 6px;
  margin: 10px 0;
} 

@media (max-width: 600px) {
  .spacing-div {
    display: flex;
    flex-direction: column;
    align-items: stretch;
  }

  .spacing-div label {
    margin-bottom: 6px;
  }

  .spacing-div select {
    width: 100%;
    box-sizing: border-box;
  }
}
   /* General table styling */
    table {
      width: 100%;
      border-collapse: collapse;
    }
    table, th, td {
      border: 1px solid black;
    }
    th, td {
      padding: 8px;
      text-align: left;
    }
    th {
      background-color: #f2f2f2;
    }

    /* Select styling */
    select {
      background: rgba(0, 0, 50, 0.8);
      color: #00d8ff;
      border: 1px solid #00d8ff;
      border-radius: 5px;
      padding: 10px;
      font-family: 'Share Tech Mono', monospace;
      box-shadow: 0 0 8px #00d8ff;
      text-shadow: 1px 1px 2px #000;
      margin-right: 10px;
    }

    select:hover {
      background-color: #2c2c2c;
      box-shadow: 0 0 15px #f00;
    }

    .spacing-div {
      margin: 5px 0;
    }

    /* Section styles */
    .LS {
      font-weight: 700;
      font-size: 1.5em;
      background: black;
      margin: 5px 15px;
      text-shadow: 0 0 5px #00ccff, 0 0 10px #00ccff, 0 0 20px #00ccff, 0 0 30px #00ccff;
    }

    .DS {
      font-weight: 700;
      font-size: 1.5em;
      background: black;
      margin: 5px 15px;
      text-shadow: 0 0 5px #ff1111, 0 0 10px #ff1111, 0 0 20px #ff1111, 0 0 30px #ff1111;
    }

    .N {
      font-weight: 700;
      font-size: 1.5em;
      background: black;
      margin: 5px 15px;
      text-shadow: 0 0 5px #ffff66, 0 0 10px #ffff66, 0 0 20px #ffff66, 0 0 30px #ffff66;
    }

    .Odd { background: #EEEEEE; }
    .Even { background: #FFFFFF; }

    .operation-cell {
      text-align: center;
      vertical-align: middle;
      font-size: 1.3em;
      font-weight: 700;
    }

    .unit-wrapper {
      display: flex;
      align-items: center;
    }

    .unit-icon {
      max-width: 35px;
      max-height: 35px;
      border-radius: 17px;
      margin-right: 10px;
    }

.main-container {
  padding: 20px;
}

.top-menu {
  position: sticky;
  top: 0;
  z-index: 1000;
  background-color: #000; /* or rgba if you want transparency */
  box-shadow: 0 2px 8px rgba(0, 216, 255, 0.4);
  backdrop-filter: blur(4px);
}

.menu-dropdown {
  position: relative;
  display: inline-block;
  margin: 2px;
}

.menu-button {
  background-color: rgba(0, 0, 50, 0.8);
  color: #00d8ff;
  border: 1px solid #00d8ff;
  border-radius: 6px;
  padding: 11px 16px;
  font-family: 'Share Tech Mono', monospace;
  box-shadow: 0 0 8px #00d8ff;
  cursor: pointer;
  text-shadow: 1px 1px 2px #000;
}

.dropdown-content {
  display: none;
  position: absolute;
  background-color: #111;
  min-width: 160px;
  z-index: 10;
  border: 1px solid #00d8ff;
  box-shadow: 0 0 10px #00d8ff;
}

.dropdown-content a {
  color: #00d8ff;
  padding: 10px 14px;
  text-decoration: none;
  display: block;
  text-shadow: 1px 1px 2px #000;
}

.dropdown-content a:hover {
  background-color: #222;
  color: #fff;
}

.menu-dropdown:hover .dropdown-content {
  display: block;
}

a.no-style,
a.no-style:link,
a.no-style:visited,
a.no-style:hover,
a.no-style:active {
  color: inherit;
  outline: 0;
}