body {
    margin: 0;
    font-family: 'Nunito', sans-serif;
    background-color: #f8f9fa;
    color: #212529;
}

.header {
    background-color: #fff;
    padding: 20px 0;
    text-align: center;
    border-bottom: 1px solid #ddd;
}

.logo-container img {
    max-width: 160px;
}

h1 {
    margin-top: 10px;
    font-size: 28px;
}

.lead {
    font-size: 16px;
    color: #666;
}

.container {
    max-width: 640px;
    margin: 0 auto;
    padding: 20px;
    text-align: center;
}

.btn-link {
    display: inline-block;
    width: 100%;
    max-width: 400px;
    text-align: center;
    padding: 14px;
    margin: 10px auto;
    font-size: 16px;
    text-decoration: none;
    border: 1px solid transparent;
    border-radius: 6px;
    font-weight: bold;
    transition: all 0.2s ease-in-out;
    box-sizing: border-box;
}

.btn-link:hover {
    opacity: 0.92;
}

.btn-primary {
    background: #0d6efd;
    color: white;
}

.btn-success {
    background: #198754;
    color: white;
}

.btn-secondary {
    background: #6c757d;
    color: white;
}

.btn-danger {
    background: #dc3545;
    color: white;
}

.btn-warning {
    background: #ffc107;
    color: #212529;
}

.btn-dark {
    background: #212529;
    color: white;
}

.whatsapp-section {
    margin-top: 30px;
}

.whatsapp-group {
    margin-bottom: 25px;
}

.whatsapp-group h4 {
    margin-bottom: 12px;
    font-size: 18px;
    color: #198754;
}

.whatsapp-link {
    display: inline-block;
    width: 100%;
    max-width: 400px;
    padding: 10px;
    border: 1px solid #198754;
    border-radius: 6px;
    text-decoration: none;
    margin: 6px auto;
    color: #198754;
    font-weight: 600;
    transition: background 0.2s;
    background-color: white;
    box-sizing: border-box;
}

.whatsapp-link:hover {
    background-color: #d1e7dd;
}

.locations {
    margin-top: 40px;
    font-weight: bold;
    color: #333;
    font-size: 15px;
}

.footer {
    text-align: center;
    padding: 20px;
    font-size: 14px;
    color: #666;
}

@media (max-width: 500px) {
    h1 {
        font-size: 24px;
    }

    .btn-link,
    .whatsapp-link {
        font-size: 14px;
        padding: 12px;
    }
}