body {
    font-family: 'Roboto', sans-serif;
    background-color: #0a0a23;
    color: #ffffff;
    margin: 0;
    padding: 0;
    background-image: url('space.jpg');
    background-size: cover;
}

.container {
    max-width: 500px;
    margin: 50px auto;
    padding: 20px;
    background-color: #1a1a33;
    border-radius: 10px;
    box-shadow: 0px 0px 20px rgba(255, 255, 255, 0.1);
}

h1 {
    text-align: center;
    margin-bottom: 30px;
}

form {
    text-align: center;
}

/* Hide the default file input button */
input[type="file"] {
    display: none;
}

/* Style the custom file input button */
.custom-file-upload {
    border: 2px solid #00BFFF;
    border-radius: 5px;
    padding: 10px 20px;
    background-color: transparent;
    color: #00BFFF;
    font-size: 16px;
    cursor: pointer;
    transition: background-color 0.3s, border-color 0.3s, color 0.3s;
    margin-right: 10px;
}

.custom-file-upload:hover {
    background-color: #00BFFF;
    /* Light blue background on hover */
    color: #FFFFFF;
    /* White text color on hover */
}

.custom-file-upload:focus {
    outline: none;
    /* Remove default focus outline */
    border-color: #1E90FF;
    /* Darker blue border color on focus */
}

input[type="submit"] {
    border: 2px solid #00BFFF;
    border-radius: 5px;
    padding: 10px 20px;
    background-color: #00ccff;
    color: #ffffff;
    cursor: pointer;
    font-size: 16px;
    transition: background-color 0.3s;
    margin-left: 10px;
}

input[type="submit"]:hover {
    background-color: #0099cc;
}

.message {
    text-align: center;
    margin-top: 20px;
    padding: 10px;
    background-color: #2d2d2d;
    color: #ffffff;
    border: 1px solid #ffffff;
    border-radius: 5px;
}

.note {
    font-size: 16px;
    color: #FFFFFF;
    /* White color for visibility */
    margin-top: 20px;
    text-align: center;
    font-style: italic;
    border: 2px solid #FFFFFF;
    /* White border */
    padding: 10px;
    border-radius: 5px;
    background-color: rgba(0, 0, 0, 0.5);
    /* Semi-transparent black background */
    box-shadow: 0px 0px 10px rgba(255, 255, 255, 0.2);
    /* Add shadow for depth */
}

.success {
    background-color: #c9e6c9;
    color: #008000;
    border: 1px solid #4caf50;
}

.error {
    background-color: #f8d7da;
    color: #721c24;
    border: 1px solid #f5c6cb;
}

/* CSS for "go back to home page" link */
.back-link {
    display: inline-block;
    margin-top: 20px;
    text-decoration: none;
    padding: 10px 20px;
    background-color: #007bff;
    /* Blue background color */
    color: #fff;
    /* White text color */
    border-radius: 5px;
    transition: background-color 0.3s, color 0.3s;
}

.back-link:hover {
    background-color: #0056b3;
    /* Darker blue background color on hover */
    color: #fff;
    /* White text color on hover */
}