/* Background and container styles */
body {
    margin: 0;
    padding: 0;
    font-family: 'Arial', sans-serif;
    background: url('https://source.unsplash.com/featured/?nature') no-repeat center center fixed;
    background-size: cover;
    color: white;
}

.container {
    text-align: center;
    padding: 50px;
    background-color: rgba(0, 0, 0, 0.7);
    border-radius: 10px;
    margin: 50px auto;
    max-width: 600px;
}

/* Title styles */
.title {
    font-size: 2.5rem;
    margin-bottom: 20px;
}

.subtitle {
    font-size: 1.8rem;
    margin: 20px 0;
}

/* List styling */
ul {
    list-style-type: none;
    padding: 0;
}

li {
    font-size: 1.5rem;
    margin: 10px 0;
    padding: 10px;
    background-color: rgba(255, 255, 255, 0.2);
    border-radius: 5px;
}

/* Form styling */
.form-container {
    margin-top: 30px;
}

input[type="text"] {
    padding: 10px;
    font-size: 1rem;
    width: 80%;
    border: none;
    border-radius: 5px;
    outline: none;
}

.submit-btn {
    padding: 10px 20px;
    font-size: 1rem;
    border: none;
    background-color: #28a745;
    color: white;
    border-radius: 5px;
    cursor: pointer;
    transition: background-color 0.3s ease;
}

.submit-btn:hover {
    background-color: #218838;
}