body {
    margin: 0;
    font-family: 'Segoe UI', sans-serif;
    background: #f4f1ea;
    color: #2e2e2e;
}

header {
    background: #5c7c6f;
    color: white;
    padding: 60px 20px;
    text-align: center;
}

.btn-primary {
    display: inline-block;
    margin-top: 20px;
    padding: 10px 25px;
    background: #c9a66b;
    color: white;
    text-decoration: none;
    border-radius: 5px;
}

nav {
    background: #c9a66b;
    text-align: center;
    padding: 10px;
}

nav a {
    color: white;
    margin: 0 15px;
    text-decoration: none;
    font-weight: 600;
}

.section {
    padding: 50px 20px;
    text-align: center;
}

.light {
    background: #ffffff;
}

.features {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 20px;
    margin-top: 30px;
}

.card {
    background: white;
    padding: 20px;
    border-radius: 10px;
    width: 220px;
    box-shadow: 0 4px 8px rgba(0,0,0,0.05);
}

.book-list {
    list-style: none;
    padding: 0;
}

.book-list li {
    margin: 10px 0;
    font-weight: 500;
}

input, textarea {
    width: 80%;
    max-width: 400px;
    padding: 12px;
    margin: 10px;
    border-radius: 5px;
    border: 1px solid #ccc;
}

button {
    padding: 10px 20px;
    background: #5c7c6f;
    color: white;
    border: none;
    border-radius: 5px;
    cursor: pointer;
}

button:hover {
    background: #3f5f52;
}

footer {
    background: #5c7c6f;
    color: white;
    padding: 15px;
    text-align: center;
}