body {
    font-family: 'Arial', sans-serif;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    background: linear-gradient(135deg, #74ebd5, #ACB6E5);
    margin: 0;
}

.calculator-container {
    background: rgba(255, 255, 255, 0.9);
    padding: 50px 100px;
    border-radius: 20px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
    text-align: center;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.calculator-container:hover {
    transform: translateY(-10px);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.3);
}

.calculator-container h1 {
    margin-bottom: 30px;
    color: #007BFF;
    font-size: 36px;
    text-shadow: 2px 2px #B0E0E6;
}

.input-group {
    margin-bottom: 20px;
    text-align: left;
}

.input-group label {
    display: block;
    margin-bottom: 5px;
    color: #0056b3;
    font-weight: bold;
}

.input-group input {
    width: calc(100% - 22px);
    padding: 10px;
    border: 2px solid #007BFF;
    border-radius: 5px;
    font-size: 16px;
    transition: border-color 0.3s ease, box-shadow 0.3s ease;
}

.input-group input:hover,
.input-group input:focus {
    border-color: #0056b3;
    box-shadow: 0 0 10px rgba(0, 123, 255, 0.5);
}

button {
    background-color: #007BFF;
    color: white;
    padding: 10px 20px;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    font-size: 16px;
    transition: background-color 0.3s ease, transform 0.3s ease;
}

button:hover {
    background-color: #0056b3;
    transform: translateY(-5px);
}

#result {
    margin-top: 20px;
    font-size: 20px;
    color: #007BFF;
    font-weight: bold;
}