body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
    background-color: #f4f7f6;
    color: #333;
    line-height: 1.6;
    margin: 0;
    padding: 20px;
}

.container {
    max-width: 800px;
    margin: 0 auto;
    background: #fff;
    padding: 2rem;
    border-radius: 10px;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
}

header {
    text-align: center;
    margin-bottom: 2rem;
    border-bottom: 1px solid #eee;
    padding-bottom: 1rem;
}

header h1 {
    color: #0056b3;
    margin-bottom: 0.5rem;
}

header p {
    color: #666;
    font-size: 1.1rem;
}

.service-card {
    background: #f9f9f9;
    border: 1px solid #eee;
    border-radius: 8px;
    padding: 1.5rem;
    margin-bottom: 1.5rem;
    transition: box-shadow 0.3s ease;
}

.service-card:hover {
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.07);
}

.service-card h2 {
    margin-top: 0;
    color: #333;
}

.btn {
    display: inline-block;
    background-color: #007bff;
    color: white;
    padding: 10px 20px;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    text-decoration: none;
    font-size: 1rem;
    transition: background-color 0.3s ease;
}

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

.whatsapp-btn {
    background-color: #25D366;
}

.whatsapp-btn:hover {
    background-color: #1EBE57;
}

footer {
    text-align: center;
    margin-top: 2rem;
    padding-top: 1rem;
    border-top: 1px solid #eee;
    font-size: 0.9rem;
    color: #777;
}

/* Modal Styles */
.modal {
    display: none; 
    position: fixed; 
    z-index: 1; 
    left: 0;
    top: 0;
    width: 100%; 
    height: 100%; 
    overflow: auto; 
    background-color: rgba(0,0,0,0.5);
}

.modal-content {
    background-color: #fefefe;
    margin: 15% auto;
    padding: 20px;
    border: 1px solid #888;
    width: 80%;
    max-width: 500px;
    border-radius: 8px;
    text-align: center;
    position: relative;
}

.close-button {
    color: #aaa;
    position: absolute;
    top: 10px;
    right: 20px;
    font-size: 28px;
    font-weight: bold;
    cursor: pointer;
}

.close-button:hover,
.close-button:focus {
    color: black;
}