body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
    background-color: #f4f4f4;
    color: #333;
}

header {
    background-color: #007BFF;
    color: white;
    padding: 1rem 0;
    text-align: center;
}

header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

header h1 {
    margin: 0;
    font-size: 2rem;
    font-weight: bold;
}

nav ul {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    align-items: center;
}

nav ul li {
    margin: 0 1rem;
}

nav ul li a {
    color: white;
    text-decoration: none;
    font-weight: bold;
}

nav ul li a.btn-login,
nav ul li a.btn-register {
    background-color: #0056b3;
    padding: 0.5rem 1rem;
    border-radius: 5px;
}

#hero {
    text-align: center;
    padding: 4rem 0;
    background-color: #e9ecef;
}

#hero h2 {
    margin: 0;
    font-size: 2.5rem;
}

#hero p {
    margin: 1rem 0;
    font-size: 1.2rem;
}

.btn {
    background-color: #007BFF;
    color: white;
    padding: 0.75rem 1.5rem;
    text-decoration: none;
    border-radius: 5px;
    font-size: 1rem;
}

.btn-primary {
    background-color: #0056b3;
}

#features, #about, #contact, #pricing {
    padding: 2rem 0;
    text-align: center;
}

.feature {
    margin: 1rem 0;
}

.pricing-card {
    background-color: #fff;
    border: 1px solid #ddd;
    border-radius: 10px;
    padding: 2rem;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
    text-align: center;
    max-width: 400px;
    margin: 0 auto;
    position: relative;
}

.pricing-card h3 {
    margin-top: 0;
}

.pricing-card .price {
    font-size: 2rem;
    color: #007BFF;
    margin: 1rem 0;
}

.pricing-card .btn-subscribe {
    display: inline-block;
    margin-top: 1rem;
}

form {
    display: flex;
    flex-direction: column;
    align-items: center;
}

form label {
    margin: 0.5rem 0;
    font-weight: bold;
}

form input, form textarea {
    width: 100%;
    max-width: 400px;
    padding: 0.75rem;
    margin: 0.5rem 0;
    border: 1px solid #ccc;
    border-radius: 5px;
    font-size: 1rem;
}

form textarea {
    height: 200px;
}

form button {
    background-color: #007BFF;
    color: white;
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    font-size: 1rem;
}

footer {
    background-color: #007BFF;
    color: white;
    text-align: center;
    padding: 1rem 0;
    position: relative;
    width: 100%;
}

.container {
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
}

@media (max-width: 768px) {
    header .container {
        flex-direction: column;
        text-align: center;
    }

    nav ul {
        flex-direction: column;
    }

    nav ul li {
        margin: 0.5rem 0;
    }

    #hero h2 {
        font-size: 2rem;
    }

    #hero p {
        font-size: 1rem;
    }

    .btn {
        font-size: 0.875rem;
    }

    form input, form textarea {
        font-size: 0.875rem;
    }

    form button {
        font-size: 0.875rem;
    }
}