static/style.css

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: Arial, sans-serif;
    background-color: #f4f4f4;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
}

.container {
    width: 50%;
    background: white;
    padding: 30px;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
    border-radius: 8px;
    text-align: center;
}

h1 {
    color: #333;
    margin-bottom: 20px;
}

label {
    font-size: 16px;
    font-weight: bold;
    display: block;
    margin-top: 15px;
    color: #555;
    text-align: left;
}

textarea, select, input {
    width: 100%;
    padding: 10px;
    margin-top: 5px;
    border: 1px solid #ccc;
    border-radius: 5px;
    font-size: 16px;
}

select {
    cursor: pointer;
}

button {
    background: #4CAF50;
    color: white;
    padding: 12px 20px;
    margin-top: 20px;
    border: none;
    cursor: pointer;
    border-radius: 5px;
    font-size: 16px;
    width: 100%;
    transition: background 0.3s ease;
}

button:disabled {
    background: #ccc;
    cursor: not-allowed;
}

button:hover:not(:disabled) {
    background: #45a049;
}

#number_label {
    display: none;
}

#number {
    display: none;
}

.result-section {
    margin-top: 20px;
    padding: 15px;
    background-color: #eef;
    border-left: 5px solid #4CAF50;
    border-radius: 5px;
    font-size: 16px;
    text-align: left;
}