/* Reset dan Pengaturan Dasar */
:root {
    --primary-color: #007BFF; /* Biru */
    --primary-hover-color: #0056b3;
    --secondary-color: #6c757d; /* Abu-abu */
    --secondary-hover-color: #5a6268;
    --background-color: #ffffff;
    --form-bg-color: #f8f9fa;
    --text-color: #212529;
    --border-color: #dee2e6;
    --font-family: 'Inter', sans-serif;
}

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

body {
    font-family: var(--font-family);
    background-color: var(--background-color);
    color: var(--text-color);
    line-height: 1.6;
}

/* Header */
.site-header {
    background-color: var(--background-color);
    padding: 1rem 2rem;
    border-bottom: 1px solid var(--border-color);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.logo-placeholder .logo-box {
    width: 150px;
    height: 50px;
    background-color: #e9ecef;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 500;
    color: var(--secondary-color);
    border-radius: 8px;
}

/* Kontainer Utama */
.container {
    max-width: 800px;
    margin: 2rem auto;
    padding: 2rem;
    background-color: var(--background-color);
}

/* Section Survei */
.survey-section {
    display: none; /* Semua section disembunyikan secara default */
    padding: 2rem;
    border: 1px solid var(--border-color);
    border-radius: 12px;
    background-color: var(--form-bg-color);
    animation: fadeIn 0.5s ease-in-out;
}

.survey-section.active {
    display: block; /* Hanya section aktif yang ditampilkan */
}

.survey-section h2 {
    margin-bottom: 0.5rem;
    font-weight: 700;
    color: var(--text-color);
}

.survey-section p {
    margin-bottom: 1.5rem;
    color: var(--secondary-color);
}

/* Grup Form */
.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
}

.form-group input[type="text"],
.form-group input[type="email"],
.form-group input[type="number"],
.form-group input[type="date"],
.form-group textarea {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    font-size: 1rem;
    font-family: var(--font-family);
    transition: border-color 0.2s, box-shadow 0.2s;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(0, 123, 255, 0.25);
}

/* Pilihan Ganda (Radio) */
.radio-group label {
    display: block;
    background-color: var(--form-bg-color);
    padding: 0.75rem 1rem;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    margin-bottom: 0.5rem;
    cursor: pointer;
    transition: border-color 0.2s, background-color 0.2s;
    font-size: 1rem; /* Menyamakan ukuran font dengan paragraf */    
}

.radio-group label:hover {
    border-color: var(--primary-color);
}

.radio-group label span {
    color: var(--secondary-color); /* Menyamakan warna font dengan class .help */
}


.radio-group input[type="radio"]:checked + span {
    font-weight: bold;
    color: var(--primary-color);
}

.radio-group label.selected {
        border-color: var(--primary-color);
        background-color: #e7f3ff;
}

.radio-group input[type="radio"] {
    margin-right: 0.75rem;
    accent-color: var(--primary-color);
    vertical-align: middle; /* Menyejajarkan radio button dengan teks */
}

/* Tombol Navigasi */
.navigation-buttons {
    display: flex;
    justify-content: space-between;
    margin-top: 2rem;
    border-top: 1px solid var(--border-color);
    padding-top: 1.5rem;
}

.btn {
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    transition: background-color 0.2s, transform 0.1s;
}

.btn:active {
    transform: translateY(1px);
}

.next-btn, .submit-btn {
    background-color: var(--primary-color);
    color: white;
}

.next-btn:hover, .submit-btn:hover {
    background-color: var(--primary-hover-color);
}

.prev-btn {
    background-color: var(--secondary-color);
    color: white;
}

.prev-btn:hover {
    background-color: var(--secondary-hover-color);
}

/* Utility */
.hidden {
    display: none;
}

/* Animasi */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Pesan Sukses */
#success-message {
    text-align: center;
    padding: 3rem;
    border: 1px solid #5c9dff;
    background-color: #D6EBFF;
    color: #001F5F;
    border-radius: 12px;
    animation: fadeIn 0.5s;
}