body {
    font-family: sans-serif;
    background-color: #f4f4f9;
    margin: 0;
    padding: 15px;
    color: #333;
}

.container { max-width: 500px; margin: 0 auto; }
h1 { text-align: center; color: #2c3e50; font-size: 1.5em; }

.card {
    background: #fff;
    padding: 12px;
    margin-bottom: 12px;
    border-radius: 8px;
    box-shadow: 0 1px 3px rgba(0,0,0,0.1);
}

.alert { border-left: 5px solid #e74c3c; }
.info { border-left: 5px solid #3498db; }
.contact { border-left: 5px solid #27ae60; }
.notes { border-left: 5px solid #f39c12; }

h2 { margin-top: 0; font-size: 1.1em; border-bottom: 1px solid #eee; padding-bottom: 5px; }

.btn {
    display: block;
    background-color: #27ae60;
    color: white;
    text-align: center;
    padding: 12px;
    text-decoration: none;
    border-radius: 5px;
    font-weight: bold;
    margin-bottom: 5px;
}

.btn-secondary { background-color: #2ecc71; }