body {
    font-family: Arial, sans-serif;
    background-color: #f4f6f9;
    margin: 0;
    padding: 20px;
}
.container {
    max-width: 900px;
    margin: 30px auto;
}
.card {
    background: #fff;
    border-radius: 8px;
    box-shadow: 0 4px 10px rgba(0,0,0,0.1);
    overflow: hidden;
}
.card-header {
    background-color: #007bff;
    color: white;
    padding: 15px 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.card-header h2 {
    margin: 0;
    font-size: 20px;
}
.btn-tambah {
    background-color: white;
    color: #333;
    padding: 8px 15px;
    text-decoration: none;
    border-radius: 4px;
    font-weight: bold;
    font-size: 14px;
}
.card-body {
    padding: 20px;
}
.alert {
    background-color: #e2f0d9;
    border: 1px solid #b4c6e7;
    padding: 12px;
    margin-bottom: 20px;
    border-radius: 4px;
    font-size: 14px;
}
table {
    width: 100%;
    border-collapse: collapse;
}
table, th, td {
    border: 1px solid #dee2e6;
}
th {
    background-color: #f8f9fa;
    padding: 12px;
    text-align: left;
}
td {
    padding: 12px;
}
.edit {
    background-color: #ffc107;
    color: black;
    padding: 6px 12px;
    text-decoration: none;
    border-radius: 4px;
    font-size: 13px;
    margin-right: 5px;
}
.hapus {
    background-color: #dc3545;
    color: white;
    padding: 6px 12px;
    text-decoration: none;
    border-radius: 4px;
    font-size: 13px;
}