body {
    font-family: sans-serif;
    line-height: 1.6;
    margin: 0;
    background-color: #f4f4f4;
    color: #333;
}

.header {
    background-color: #2c3e50;
    padding: 15px 0;
    border-bottom: 3px solid #2094d1;
}

.wrapper {
    max-width: 960px;
    margin: 0 auto;
    padding: 0 20px;
}

.header .site-logo {
    display: inline-block;
    font-size: 24px;
    color: white;
    text-decoration: none;
    font-weight: bold;
}

.product-container {
    background-color: white;
    margin: 30px auto;
    padding: 30px;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    max-width: 800px;
}

.product-image {
    width: 100%;
    max-width: 100%;
    height: auto;
    border-radius: 8px;
    margin-bottom: 20px;
}

.product-title {
    font-size: 36px;
    color: #2c3e50;
    margin-bottom: 10px;
}

.product-description {
    font-size: 18px;
    margin-bottom: 30px;
}

.signup-section {
    background-color: #2094d1;
    color: white;
    padding: 40px 20px;
    text-align: center;
    border-radius: 8px;
}

.signup-section h2 {
    margin-top: 0;
    font-size: 28px;
}

.newsletter-form {
    display: flex;
    flex-direction: column;
    align-items: center;
    max-width: 450px;
    margin: 20px auto 0;
}

.newsletter-form .form-group {
    width: 100%;
    margin-bottom: 15px;
}

.newsletter-form input[type="text"],
.newsletter-form input[type="email"] {
    width: 100%;
    padding: 15px;
    border: 1px solid #ccc;
    border-radius: 5px;
    font-size: 16px;
    box-sizing: border-box;
}

.btn {
    display: inline-block;
    background-color: #2c3e50;
    color: white;
    padding: 15px 30px;
    text-decoration: none;
    border-radius: 5px;
    border: none;
    cursor: pointer;
    font-size: 18px;
    transition: background-color 0.3s;
}

.btn:hover {
    background-color: #34495e;
}

.footer {
    text-align: center;
    padding: 20px;
    margin-top: 30px;
    font-size: 14px;
    color: #777;
}