* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Segoe UI', sans-serif;
    background-color: #f0f4f8;
    color: #333;
}

header {
    background-color: #1a6b3c;
    color: white;
    padding: 20px;
    text-align: center;
}

header h1 {
    font-size: 24px;
    letter-spacing: 1px;
}

.container {
    max-width: 800px;
    margin: 30px auto;
    padding: 0 20px;
}

.mb-20 {
    margin-bottom: 20px;
    margin-top: 20px;
}

.btn {
    display: inline-block;
    padding: 8px 16px;
    border-radius: 5px;
    text-decoration: none;
    font-size: 14px;
    cursor: pointer;
    border: none;
}

.btn-hijau { background-color: #1a6b3c; color: white; }
.btn-biru  { background-color: #2196F3; color: white; }
.btn-merah { background-color: #e53935; color: white; }
.btn:hover { opacity: 0.85; }

table {
    width: 100%;
    border-collapse: collapse;
    background: white;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}

th {
    background-color: #1a6b3c;
    color: white;
    padding: 12px;
    text-align: left;
}

td {
    padding: 11px 12px;
    border-bottom: 1px solid #eee;
}

tr:hover td {
    background-color: #f9f9f9;
}

.form-card {
    background: white;
    padding: 30px;
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}

.form-group {
    margin-bottom: 16px;
}

.form-group label {
    display: block;
    margin-bottom: 6px;
    font-weight: 600;
    color: #1a6b3c;
}

.form-group input {
    width: 100%;
    padding: 10px;
    border: 1px solid #ccc;
    border-radius: 5px;
    font-size: 14px;
}