:root {
    --primary: #6366f1;
    --primary-hover: #4f46e5;
    --success: #10b981;
    --danger: #ef4444;
    --bg-color: #63b1ff;
    --card: #ffffff;
    --text: #1e293b;
    --text-light: #64748b;
    --shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.1), 0 8px 10px -6px rgba(0, 0, 0, 0.1);
}

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

body {
    font-family: 'Poppins', sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
    overflow-x: hidden;
}

/* Navbar Responsif */
.navbar {
    background: white;
    height: 65px;
    display: flex;
    align-items: center;
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 1000;
}

.nav-container {
    width: 90%;
    max-width: 1100px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-logo {
    font-weight: 700;
    color: var(--primary);
    font-size: 1.1rem;
    letter-spacing: -0.5px;
}

.nav-menu a {
    text-decoration: none;
    color: var(--text);
    font-weight: 600;
    font-size: 0.85rem;
    padding: 8px 16px;
    border-radius: 8px;
    transition: background 0.3s;
}

.nav-menu a:hover {
    background: #f1f5f9;
}

/* Wrapper Utama */
.main-wrapper {
    width: 95%;
    max-width: 750px; 
    margin: 90px auto 40px;
    padding: 0 10px;
}

/* Kartu Konten */
.card {
    background: var(--card);
    border-radius: 24px;
    overflow: hidden;
    box-shadow: var(--shadow);
    padding-bottom: 30px;
    animation: fadeIn 0.6s ease-out;
}

/* FIX: Header Konten Anti Terpotong di HP */
.header-img-container {
    width: 100%; height: 220px; overflow: hidden; margin-bottom: 20px;
}

@media (max-width: 767px) {
    .header-img-container {
        /* Untuk HP vertikal, kita pastikan gambar tidak terpotong sama sekali */
        aspect-ratio: auto; 
        min-height: 200px;
        max-height: 350px;
        background: #1e293b;
    }
}

.header-img-container img {
    width: 100%;
    height: 100%;
    /* Menggunakan 'contain' di mobile agar gambar tidak terpotong (fit to screen) */
    /* Menggunakan 'cover' di desktop untuk estetika penuh layar */
    object-fit: cover;
    object-position: center;
    display: block;
}

@media (max-width: 767px) {
    .header-img-container img {
        /* Perubahan khusus HP: Seluruh gambar akan terlihat */
        object-fit: contain; 
    }
}

/* Narasi Kaya & Media */
.narration-box {
    background: #f8fafc;
    padding: 20px;
    margin: 20px 15px;
    border-radius: 16px;
    font-size: 0.9rem;
    border-left: 4px solid var(--primary);
}

@media (min-width: 768px) {
    .narration-box {
        margin: 25px 30px;
        padding: 25px;
        font-size: 1rem;
    }
}

.video-container {
    position: relative; padding-bottom: 56.25%; height: 0;
    margin-top: 15px; border-radius: 8px; overflow: hidden;
}
.video-container iframe { position: absolute; top: 0; left: 0; width: 100%; height: 100%; }
.audio-player { width: 100%; margin-top: 10px; }

.title { text-align: center; margin-bottom: 20px; font-size: 1.5rem; }

.form-group { padding: 0 25px; margin-bottom: 15px; }
.form-group label { display: block; font-size: 0.85rem; margin-bottom: 5px; font-weight: 600; }
.form-group input {
    width: 100%; padding: 12px; border: 1px solid #e2e8f0; border-radius: 10px; outline: none;
}

/* Tipografi */
.title {
    text-align: center;
    padding: 0 20px;
    margin: 20px 0;
    font-size: 1.4rem;
    font-weight: 700;
}

.question-text {
    padding: 0 20px;
    margin-bottom: 20px;
    font-size: 1.1rem;
    line-height: 1.4;
    font-weight: 600;
}

@media (min-width: 768px) {
    .title { font-size: 1.8rem; }
    .question-text { font-size: 1.3rem; padding: 0 30px; }
}

/* Form & Input */
.form-group {
    padding: 0 20px;
    margin-bottom: 15px;
}

@media (min-width: 768px) {
    .form-group { padding: 0 30px; }
}

.form-group label {
    display: block;
    font-weight: 600;
    font-size: 0.85rem;
    margin-bottom: 6px;
    color: var(--text-light);
}

.form-group input {
    width: 100%;
    padding: 14px;
    border: 2px solid #f1f5f9;
    border-radius: 12px;
    outline: none;
    font-family: inherit;
    transition: border-color 0.3s;
}

.form-group input:focus {
    border-color: var(--primary);
}

/* Grid Pilihan Jawaban */
.options-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 12px;
    padding: 0 20px;
}

@media (min-width: 500px) {
    .options-grid {
        grid-template-columns: 1fr 1fr;
    }
}

@media (min-width: 768px) {
    .options-grid { padding: 0 30px; gap: 15px; }
}

.option-btn {
    text-align: left;
    padding: 16px;
    border: 2px solid #f1f5f9;
    border-radius: 14px;
    background: white;
    cursor: pointer;
    font-family: inherit;
    font-weight: 500;
    transition: all 0.2s;
    font-size: 0.95rem;
}

.option-btn:hover {
    border-color: var(--primary);
    background: #f5f7ff;
    transform: translateY(-2px);
}

/* Progress & Status */
.quiz-status {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 20px;
    margin-bottom: 10px;
    font-size: 0.8rem;
}

@media (min-width: 768px) { .quiz-status { padding: 0 30px; } }

.badge {
    background: #eef2ff;
    color: var(--primary);
    padding: 4px 12px;
    border-radius: 20px;
    font-weight: 700;
}

.progress-container {
    height: 8px;
    background: #f1f5f9;
    margin: 0 20px 25px;
    border-radius: 10px;
    overflow: hidden;
}

@media (min-width: 768px) { .progress-container { margin: 0 30px 30px; } }

.progress-fill {
    height: 100%;
    background: var(--primary);
    width: 0%;
    transition: width 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Tombol Umum */
.btn {
    padding: 16px;
    border-radius: 14px;
    border: none;
    font-weight: 700;
    cursor: pointer;
    transition: 0.3s;
    font-family: inherit;
    font-size: 1rem;
}

.btn-primary {
    background: var(--primary);
    color: white;
    width: calc(100% - 40px);
    margin: 10px 20px;
}

@media (min-width: 768px) {
    .btn-primary { width: calc(100% - 60px); margin: 10px 30px; }
}

.btn-primary:hover { background: var(--primary-hover); }

.btn-success { background: var(--success); color: white; width: 80%; margin: 10px auto; display: block; }
.btn-outline { background: transparent; border: 2px solid #e2e8f0; width: 80%; margin: 10px auto; display: block; }

/* Modal & Popup */
.modal { position: fixed; inset: 0; background: rgba(0,0,0,0.7); display: flex; align-items: center; justify-content: center; z-index: 1000; padding: 20px; }
.modal-content { background: white; padding: 35px; border-radius: 20px; max-width: 500px; text-align: center; position: relative; }
.close-btn { position: absolute; top: 15px; right: 20px; font-size: 1.5rem; cursor: pointer; color: #94a3b8; }
.modal-body { text-align: left; line-height: 1.6; margin-top: 15px; font-size: 0.9rem; }
.error-icon { font-size: 3rem; margin-bottom: 15px; }

.fade-in { animation: fadeIn 0.4s ease-in; }
@keyframes fadeIn { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; } }



/* Utilitas */
.hidden { display: none !important; }
.text-center { text-align: center; }
.victory-icon { font-size: 4rem; margin: 20px 0; }

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

/* Pengaturan untuk Layar Sangat Kecil */
@media (max-width: 360px) {
    .nav-logo { font-size: 0.9rem; }
    .title { font-size: 1.2rem; }
    .option-btn { font-size: 0.85rem; padding: 12px; }
}