body {
    font-family: 'Poppins', sans-serif;
    background-color: #f4f7f6;
    color: #333;
    line-height: 1.6;
    margin: 0;
    padding: 20px 0;
    display: flex;
    justify-content: center;
    align-items: flex-start; /* Mengatur ke atas */
    min-height: 100vh;
}

.container {
    background-color: #fff;
    padding: 40px;
    border-radius: 8px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    max-width: 800px;
    width: 100%;
    box-sizing: border-box;
}

header {
    text-align: center;
    margin-bottom: 30px;
}

header h1 {
    color: #2c3e50;
    margin-bottom: 10px;
}

header h2 {
    color: #34495e;
    font-size: 1.5em;
    margin-bottom: 15px;
}

.free-info {
    background-color: #e6ffe6;
    color: #28a745;
    padding: 10px 20px;
    border-radius: 5px;
    margin-bottom: 20px;
    font-weight: bold;
}

.important-note {
    background-color: #fff3cd;
    color: #856404;
    padding: 10px 20px;
    border-left: 5px solid #ffc107;
    margin-top: 20px;
}

fieldset {
    border: 1px solid #ddd;
    border-radius: 5px;
    padding: 20px;
    margin-bottom: 25px;
    background-color: #fdfdfd;
}

legend {
    font-size: 1.2em;
    font-weight: 600;
    color: #555;
    padding: 0 10px;
}

.form-group {
    margin-bottom: 15px;
}

.form-group label {
    display: block;
    margin-bottom: 5px;
    font-weight: 500;
    color: #444;
}

.form-group input[type="text"],
.form-group input[type="date"],
.form-group input[type="number"],
.form-group input[type="tel"],
.form-group select {
    width: calc(100% - 22px); /* Adjust for padding and border */
    padding: 10px;
    border: 1px solid #ccc;
    border-radius: 4px;
    font-size: 1em;
    box-sizing: border-box;
}

.form-group input:focus,
.form-group select:focus {
    border-color: #007bff;
    outline: none;
    box-shadow: 0 0 0 0.2rem rgba(0, 123, 255, 0.25);
}

.required {
    color: red;
    margin-left: 2px;
}

.form-actions {
    text-align: center;
    margin-top: 30px;
}

button {
    background-color: #28a745; /* Green for success */
    color: white;
    padding: 12px 25px;
    border: none;
    border-radius: 5px;
    font-size: 1.1em;
    cursor: pointer;
    transition: background-color 0.3s ease;
}

button:hover {
    background-color: #218838;
}

#loadingMessage {
    margin-top: 15px;
    color: #007bff;
    font-style: italic;
}

.message {
    margin-top: 15px;
    padding: 10px;
    border-radius: 4px;
    display: none; /* Awalnya sembunyikan */
}

.message.success {
    background-color: #d4edda;
    color: #155724;
    border: 1px solid #badbcc;
}

.message.error {
    background-color: #f8d7da;
    color: #721c24;
    border: 1px solid #f5c6cb;
}

@media (max-width: 768px) {
    .container {
        padding: 20px;
        margin: 10px;
    }
    header h1 {
        font-size: 1.8em;
    }
    header h2 {
        font-size: 1.2em;
    }
}