body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: #f4f7f6;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    margin: 0;
}

.container {
    background-color: #ffffff;
    padding: 2rem;
    border-radius: 15px;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
    width: 100%;
    max-width: 400px;
    text-align: center;
}

h1 {
    color: #2c3e50;
    margin-bottom: 1.5rem;
    font-size: 1.5rem;
}


label {
    display: block;
    text-align: left;
    margin-bottom: 5px;
    color: #7f8c8d;
    font-size: 0.9rem;
}


input,
select {
    width: 100%;
    padding: 12px;
    margin-bottom: 20px;
    border: 1px solid #dcdde1;
    border-radius: 8px;
    box-sizing: border-box;
    font-size: 1rem;
    outline: none;
    transition: border-color 0.3s;
}

input:focus,
select:focus {
    border-color: #5e5bec;
}

button {
    width: 100%;
    padding: 12px;
    background-color: #34db60;
    color: white;
    border: none;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: bold;
    cursor: pointer;
    transition: background-color 0.3s, transform 0.1s;
}

button:hover {
    background-color: #2980b9;
}

button:active {
    transform: scale(0.98);
}

#result-box {
    margin-top: 20px;
    padding: 15px;
    background-color: #ebf5fb;
    border-radius: 8px;
    color: #2c3e50;
    min-height: 50px;
}
`