body {
    font-family: Arial, sans-serif;
    background: linear-gradient(to right, #ff7e5f, #feb47b);
    margin: 0;
    padding: 0;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
}

.container {
    background-color: #ffffff;
    padding: 20px;
    border-radius: 10px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
    max-width: 400px;
    width: 100%;
}

h1, h2 {
    text-align: center;
    margin-bottom: 20px;
    color: #333;
}

.input-group {
    margin-bottom: 15px;
}

label {
    display: block;
    margin-bottom: 5px;
    color: #555;
}

input, select {
    width: 100%;
    padding: 8px;
    border: 1px solid #ccc;
    border-radius: 5px;
    font-size: 16px;
}

button {
    width: 100%;
    padding: 10px;
    background-color: #28a745;
    color: white;
    border: none;
    border-radius: 5px;
    font-size: 16px;
    cursor: pointer;
    margin-top: 10px;
}

button:hover {
    background-color: #218838;
}

#progressionReport {
    margin-top: 20px;
}

#reportContent {
    margin-top: 10px;
    background-color: #e9ecef;
    padding: 10px;
    border-radius: 5px;
    color: #333;
}

.popup {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background-color: #ffffff;
    padding: 20px;
    border-radius: 10px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.2);
    z-index: 1000;
}

#closePopup {
    background-color: #dc3545;
    color: white;
    margin-top: 10px;
}

@media (max-width: 600px) {
    .container {
        margin: 10px;
        padding: 15px;
    }

    h1, h2 {
        font-size: 24px;
    }

    input, button {
        font-size: 14px;
    }
}