* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: Arial, sans-serif;
}
body {
    background: #f5f5f5;
    padding: 20px;
}
.container {
    max-width: 1200px;
    margin: 0 auto;
    background: white;
    border-radius: 10px;
    padding: 20px;
    box-shadow: 0 0 10px rgba(0,0,0,0.1);
}
.header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 2px solid #4CAF50;
    padding-bottom: 10px;
    margin-bottom: 20px;
}
.logo {
    font-size: 24px;
    font-weight: bold;
    color: #4CAF50;
}
.nav a {
    margin-left: 15px;
    text-decoration: none;
    color: #333;
}
.nav a:hover {
    color: #4CAF50;
}
.btn {
    display: inline-block;
    padding: 8px 15px;
    background: #4CAF50;
    color: white;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    text-decoration: none;
}
.btn-danger {
    background: #f44336;
}
.btn-wa {
    background: #25D366;
}
.card {
    border: 1px solid #ddd;
    border-radius: 8px;
    padding: 15px;
    margin: 10px;
    width: 280px;
    display: inline-block;
    vertical-align: top;
    background: #fff;
}
.card img {
    width: 100%;
    height: 180px;
    object-fit: cover;
    border-radius: 5px;
}
.form-group {
    margin-bottom: 15px;
}
.form-group label {
    display: block;
    margin-bottom: 5px;
    font-weight: bold;
}
.form-group input, .form-group select, .form-group textarea {
    width: 100%;
    padding: 8px;
    border: 1px solid #ddd;
    border-radius: 5px;
}
table {
    width: 100%;
    border-collapse: collapse;
}
table, th, td {
    border: 1px solid #ddd;
}
th, td {
    padding: 10px;
    text-align: left;
}
.alert {
    padding: 10px;
    background: #f2f2f2;
    margin-bottom: 15px;
    border-radius: 5px;
}