body {
    font-family: Arial, sans-serif;
    background-color: grey;
    color: #333333;
    margin: 0;
    padding: 0;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
}

.container {
    max-width: 600px;
    width: 100%;
    margin: 20px;
    background: #ffffff;
    padding: 20px;
    border-radius: 10px;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
    box-sizing: border-box;
}

h1 {
    text-align: center;
    color: #4CAF50;
    margin-bottom: 20px;
}

form {
    display: flex;
    flex-direction: column;
}

.appliance-row {
    display: grid;
    grid-template-columns: 1fr 2fr 1fr 2fr 1fr 2fr;
    gap: 10px;
    align-items: center;
    margin-bottom: 15px;
    box-sizing: border-box;
}

.appliance-row label {
    text-align: right;
}

.appliance-row input {
    width: 100%;
    padding: 8px;
    border: 1px solid #cccccc;
    border-radius: 4px;
    box-sizing: border-box;
}

.add-button,
.calculate-button {
    background-color: #4CAF50;
    color: white;
    padding: 10px;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    margin-top: 10px;
}

.add-button:hover,
.calculate-button:hover {
    background-color: #45a049;
}

#result {
    margin-top: 20px;
    font-size: 18px;
    text-align: center;
}