.calc-container { 
    max-width: 900px; 
    margin: 40px auto; 
    background: #fff; 
    padding: 30px; 
    border-radius: 10px; 
    box-shadow: 0 0 10px rgba(0,0,0,0.1);
    color: #333; 
}

.calc-container h1, 
.calc-container h2 { 
    text-align: center; 
    color: #2c3e50; 
}

.calc-nav { 
    display: flex; 
    justify-content: center; 
    margin-bottom: 20px; 
}

.calc-nav button { 
    margin: 0 10px; 
    padding: 10px 20px; 
    border: none; 
    background: #3498db; 
    color: white; 
    border-radius: 5px; 
    cursor: pointer; 
}

.calc-nav button.active { 
    background: #2ecc71; 
}

.calc-section { 
    display: none; 
}

.calc-section.active { 
    display: block; 
}

.calc-label { 
    display: block; 
    margin-top: 10px; 
    font-weight: bold; 
}

.calc-input, 
.calc-select { 
    width: 100%; 
    padding: 8px; 
    margin-top: 5px; 
    border-radius: 5px; 
    border: 1px solid #ccc; 
}

.calc-result { 
    background: #ecf0f1; 
    padding: 15px; 
    margin-top: 20px; 
    border-radius: 5px; 
}

.calc-highlight { 
    font-size: 1.2em; 
    color: #27ae60; 
    font-weight: bold; 
}

.calc-checkbox-container {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 10px;
}

.calc-checkbox-container input[type="checkbox"] {
  width: 18px;
  height: 18px;
  vertical-align: middle;
}

.calc-checkbox-container label {
  margin: 0;
}

.calc-btn {
    background-color: #007BFF;
    color: white;
    border: none;
    padding: 14px 24px;
    font-size: 16px;
    font-weight: bold;
    border-radius: 10px;
    cursor: pointer;
    box-shadow: 0 4px 10px rgba(0, 123, 255, 0.4);
    transition: all 0.3s ease;
}

.calc-btn:hover {
    background-color: #0056b3;
    box-shadow: 0 6px 15px rgba(0, 86, 179, 0.5);
    transform: translateY(-2px);
}

.calc-btn:active {
    transform: translateY(1px);
    box-shadow: 0 3px 7px rgba(0, 123, 255, 0.3);
}

.calc-input.inline { 
    width: 48%; 
    display: inline-block; 
    margin-right: 4%; 
}
#printerInfo {
  display: flex;
  align-items: center;
  gap: 10px;
}
#printerInfo .logo {
  width: 60px;
  height: auto;
}