body {
            font-family: 'Poppins', sans-serif;
            margin: 0;
            padding: 0;
            background-color: #f4f7f6;
            color: #333;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 20px;
        }
        header {
            background-color: #fff;
            padding: 15px 0;
            border-bottom: 1px solid #eee;
            box-shadow: 0 2px 4px rgba(0,0,0,0.05);
        }
        .navbar {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .logo {
            font-size: 24px;
            font-weight: 700;
            color: #2c3e50;
            text-decoration: none;
        }
        .nav-links ul {
            list-style: none;
            margin: 0;
            padding: 0;
            display: flex;
        }
        .nav-links ul li {
            margin-left: 30px;
        }
        .nav-links ul li a {
            text-decoration: none;
            color: #555;
            font-weight: 600;
            transition: color 0.3s ease;
        }
        .nav-links ul li a:hover {
            color: #3498db;
        }
        .auth-buttons a {
            text-decoration: none;
            color: #fff;
            background-color: #3498db;
            padding: 8px 15px;
            border-radius: 5px;
            margin-left: 10px;
            transition: background-color 0.3s ease;
        }
        .auth-buttons a:hover {
            background-color: #2980b9;
        }

        /* Hero Section */
        .hero-section {
            background: linear-gradient(rgba(0, 0, 0, 0.5), rgba(0, 0, 0, 0.5)), url('https://via.placeholder.com/1920x600/2980b9/ffffff?text=Background+Interaktif') no-repeat center center/cover;
            color: #fff;
            text-align: center;
            padding: 100px 20px;
            border-radius: 8px;
            margin-top: 20px;
        }
        .hero-section h1 {
            font-size: 48px;
            margin-bottom: 15px;
        }
        .hero-section p {
            font-size: 20px;
            margin-bottom: 30px;
        }
        .hero-buttons .btn {
            display: inline-block;
            padding: 15px 30px;
            background-color: #27ae60;
            color: #fff;
            text-decoration: none;
            border-radius: 8px;
            font-weight: 600;
            margin: 0 10px;
            transition: background-color 0.3s ease;
        }
        .hero-buttons .btn:hover {
            background-color: #2ecc71;
        }
        .hero-buttons .btn.secondary {
            background-color: #e67e22;
        }
        .hero-buttons .btn.secondary:hover {
            background-color: #d35400;
        }

        /* Sections */
        .section-title {
            text-align: center;
            font-size: 32px;
            margin-bottom: 40px;
            color: #2c3e50;
            position: relative;
        }
        .section-title::after {
            content: '';
            position: absolute;
            width: 80px;
            height: 4px;
            background-color: #3498db;
            bottom: -10px;
            left: 50%;
            transform: translateX(-50%);
            border-radius: 2px;
        }

        .features-grid, .subjects-grid, .news-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 30px;
            margin-bottom: 60px;
        }
        .feature-item, .subject-card, .news-card {
            background-color: #fff;
            padding: 30px;
            border-radius: 8px;
            box-shadow: 0 4px 8px rgba(0,0,0,0.1);
            text-align: center;
            transition: transform 0.3s ease, box-shadow 0.3s ease;
        }
        .feature-item:hover, .subject-card:hover, .news-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 6px 12px rgba(0,0,0,0.15);
        }
        .feature-item h3, .subject-card h3, .news-card h3 {
            color: #3498db;
            margin-top: 15px;
        }
        .feature-item p, .subject-card p, .news-card p {
            color: #666;
            font-size: 15px;
        }
        .subject-card a {
            display: block;
            margin-top: 15px;
            color: #3498db;
            text-decoration: none;
            font-weight: 600;
        }
        .subject-card a:hover {
            text-decoration: underline;
        }
        .news-card .news-date {
            font-size: 13px;
            color: #999;
            margin-bottom: 10px;
        }

        footer {
            background-color: #2c3e50;
            color: #fff;
            padding: 0px 0;
            text-align: center;
            margin-top: 0px;
        }
        .footer-links ul {
            list-style: none;
            padding: 0;
            margin: 0 0 20px 0;
            display: flex;
            justify-content: center;
            flex-wrap: wrap;
        }
        .footer-links ul li {
            margin: 0 15px;
        }
        .footer-links ul li a {
            color: #fff;
            text-decoration: none;
            transition: color 0.3s ease;
        }
        .footer-links ul li a:hover {
            color: #3498db;
        }
        /* === Tambahan untuk Halaman Kuis === */

.quiz-join-container {
    max-width: 600px;
    margin: 80px auto;
    padding: 40px;
    background-color: #fff;
    border-radius: 8px;
    box-shadow: 0 4px 8px rgba(0,0,0,0.1);
    text-align: center;
}

.join-description {
    color: #666;
    font-size: 18px;
    margin-bottom: 30px;
    margin-top: -20px; /* Agar lebih dekat dengan judul */
}

.join-form {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 20px;
}

.pin-input {
    font-family: 'Poppins', sans-serif;
    padding: 15px 20px;
    border: 2px solid #ddd;
    border-radius: 8px;
    text-align: center;
    font-size: 2rem;
    font-weight: 700;
    letter-spacing: 0.5em; /* Memberi jarak antar karakter */
    max-width: 300px;
    text-transform: uppercase;
    transition: border-color 0.3s ease;
}

.pin-input::placeholder {
    letter-spacing: normal;
}

.pin-input:focus {
    outline: none;
    border-color: #3498db;
}

.join-form .btn {
    width: 100%;
    max-width: 345px; /* Sesuaikan dengan lebar input */
    padding: 15px 30px;
    font-size: 1.1rem;
    background-color: #27ae60; /* Menggunakan warna hijau dari hero button */
}

.join-form .btn:hover {
    background-color: #2ecc71;
}

.error-message {
    color: #e74c3c;
    margin-top: 15px;
    font-weight: 600;
    min-height: 20px;
}

/* Helper class untuk menempelkan footer ke bawah jika konten pendek */
body {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}
main {
    flex: 1;
}
/* === Tambahan untuk Dasbor Kuis Guru === */

.page-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-bottom: 20px;
    border-bottom: 1px solid #eee;
    margin-bottom: 40px;
}

.page-header .section-title {
    padding: 0;
    margin: 0;
}
.page-header .section-title::after {
    display: none; /* Hilangkan garis bawah pada judul di header */
}

.page-header .btn {
    padding: 10px 20px;
    background-color: #3498db;
}
.page-header .btn:hover {
    background-color: #2980b9;
}

.quiz-list-container {
    display: grid;
    gap: 25px;
}

.quiz-card {
    background-color: #fff;
    border-radius: 8px;
    box-shadow: 0 4px 8px rgba(0,0,0,0.08);
    padding: 25px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap; /* Agar responsif di layar kecil */
    gap: 20px;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.quiz-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 6px 12px rgba(0,0,0,0.12);
}

.quiz-card-info h3 {
    margin: 0 0 10px 0;
    color: #2c3e50;
    font-size: 1.25rem;
}

.quiz-card-meta {
    display: flex;
    gap: 15px;
    color: #7f8c8d;
    font-size: 0.9rem;
}

.quiz-card-meta span {
    background-color: #ecf0f1;
    padding: 3px 8px;
    border-radius: 5px;
}

.quiz-card-actions {
    display: flex;
    gap: 10px;
    align-items: center;
}

.quiz-card-actions .btn {
    padding: 8px 16px;
    border-radius: 5px;
    color: #fff;
    text-decoration: none; /* Untuk tag <a> */
    font-weight: 600;
    border: none;
    cursor: pointer;
}

.btn-start { background-color: #27ae60; }
.btn-start:hover { background-color: #2ecc71; }

.btn-edit { background-color: #3498db; }
.btn-edit:hover { background-color: #5dade2; }

.btn-delete { background-color: #e74c3c; }
.btn-delete:hover { background-color: #f1948a; }

.quiz-list-empty, .access-denied {
    background-color: #fff;
    border: 2px dashed #ddd;
    border-radius: 8px;
    padding: 60px 40px;
    text-align: center;
    margin-top: 40px;
}

.quiz-list-empty p, .access-denied h2 {
    font-size: 1.5rem;
    color: #333;
    margin: 0 0 20px 0;
}
.access-denied p {
    color: #666;
    margin-bottom: 25px;
}
/* === Tambahan untuk Styling Form Umum === */

.form-container {
    max-width: 800px;
    margin: 40px auto;
    background-color: #fff;
    padding: 40px;
    border-radius: 8px;
    box-shadow: 0 4px 8px rgba(0,0,0,0.08);
}

.form-group {
    margin-bottom: 25px;
}

.form-label {
    display: block;
    font-weight: 600;
    color: #333;
    margin-bottom: 8px;
}

.form-control {
    width: 100%;
    padding: 12px 15px;
    font-size: 1rem;
    font-family: 'Poppins', sans-serif;
    border: 1px solid #ccc;
    border-radius: 5px;
    box-sizing: border-box; /* Penting agar padding tidak menambah lebar */
    transition: border-color 0.3s ease, box-shadow 0.3s ease;
}

.form-control:focus {
    outline: none;
    border-color: #3498db;
    box-shadow: 0 0 5px rgba(52, 152, 219, 0.5);
}

textarea.form-control {
    resize: vertical;
    min-height: 80px;
}

.form-actions {
    margin-top: 30px;
    display: flex;
    justify-content: flex-end; /* Tombol di sebelah kanan */
    gap: 15px;
}

.form-actions .btn {
    padding: 10px 25px;
}
.form-actions .btn.btn-secondary {
    background-color: #95a5a6;
}
.form-actions .btn.btn-secondary:hover {
    background-color: #7f8c8d;
}
/* === Tambahan untuk Halaman Edit Kuis === */

.section-divider {
    border: none;
    border-top: 1px solid #eee;
    margin: 60px 0;
}

.bulk-upload-container {
    text-align: center;
    border: 2px dashed #ddd;
    background-color: #fafafa;
}

.bulk-upload-container h3 {
    margin-top: 0;
}

/* Opsi Jawaban */
.option-input-group {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-bottom: 10px;
}
.option-input-group input[type="radio"] {
    width: 20px;
    height: 20px;
    flex-shrink: 0; /* Mencegah radio button mengecil */
}

/* Opsi Lanjutan (IRT & Waktu) */
.advanced-options {
    margin: 30px 0;
    border: 1px solid #ddd;
    border-radius: 8px;
}
.advanced-options summary {
    padding: 15px;
    font-weight: 600;
    cursor: pointer;
    background-color: #f9f9f9;
}
.advanced-options-content {
    padding: 20px;
    background-color: #fff;
}
.irt-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 20px;
}

/* Daftar Soal */
.question-list-section h3 {
    margin-bottom: 20px;
}
.question-list-item {
    display: flex;
    align-items: center;
    gap: 15px;
    background-color: #fff;
    padding: 15px;
    border: 1px solid #eee;
    border-radius: 5px;
    margin-bottom: 10px;
}
.question-order {
    font-weight: 700;
    color: #3498db;
}
.question-text {
    flex-grow: 1; /* Membuat teks mengambil ruang sisa */
    margin: 0;
}
.question-actions {
    display: flex;
    gap: 8px;
}

.btn-edit-sm, .btn-delete-sm {
    padding: 5px 10px;
    font-size: 0.8rem;
    border: none;
    border-radius: 5px;
    color: #fff;
    cursor: pointer;
}
.btn-edit-sm { background-color: #95a5a6; }
.btn-edit-sm:hover { background-color: #7f8c8d; }
.btn-delete-sm { background-color: #e74c3c; }
.btn-delete-sm:hover { background-color: #c0392b; }

/* Ikon dari FontAwesome */
.fas {
    margin-right: 8px;
    color: #3498db;
}
/* === Tambahan untuk Antarmuka Kuis Siswa === */

.quiz-body {
    background: linear-gradient(45deg, #667eea, #764ba2);
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    color: #fff;
    overflow: hidden;
}

#quiz-container {
    width: 100%;
    height: 100%;
    position: relative;
}

.quiz-screen {
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    padding: 20px;
    box-sizing: border-box;
    position: absolute;
    top: 0;
    left: 0;
    animation: fadeIn 0.5s ease;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

/* Lobby Screen */
.lobby-content h2 {
    font-size: 3rem;
    margin-bottom: 10px;
}
.lobby-content h3 {
    font-size: 1.5rem;
    font-weight: 400;
}
.player-list {
    margin-top: 40px;
    background: rgba(0, 0, 0, 0.2);
    padding: 20px;
    border-radius: 8px;
    min-width: 300px;
}
.player-list ul {
    list-style: none;
    padding: 0;
    margin: 0;
    font-size: 1.2rem;
}

/* Get Ready Screen */
.get-ready-content h1 {
    font-size: 8rem;
    animation: popIn 1s ease infinite;
}

@keyframes popIn {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.1); }
}

/* Question Screen */
#question-screen {
    justify-content: space-between;
}
.question-header {
    width: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 1.2rem;
}
#quiz-timer {
    width: 60px;
    height: 60px;
    background-color: rgba(255,255,255,0.2);
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    font-weight: 700;
    font-size: 1.5rem;
}
.question-main h2 {
    font-size: 2.5rem;
    max-width: 900px;
    margin: 20px auto;
}
.answer-options-grid {
    width: 100%;
    max-width: 1200px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 15px;
}
.answer-option {
    background-color: #fff;
    color: #333;
    border: none;
    border-radius: 8px;
    padding: 20px;
    font-size: 1.2rem;
    font-family: 'Poppins', sans-serif;
    cursor: pointer;
    transition: transform 0.2s ease;
    display: flex;
    align-items: center;
    text-align: left;
}
.answer-option:hover {
    transform: scale(1.03);
}
.answer-option span {
    font-weight: 700;
    margin-right: 15px;
}
.answer-option p {
    margin: 0;
}
.answer-options-grid .answer-option:nth-child(1) { background-color: #e74c3c; color: #fff; }
.answer-options-grid .answer-option:nth-child(2) { background-color: #3498db; color: #fff; }
.answer-options-grid .answer-option:nth-child(3) { background-color: #f1c40f; color: #fff; }
.answer-options-grid .answer-option:nth-child(4) { background-color: #2ecc71; color: #fff; }


/* Leaderboard & Final Screen */
.leaderboard-content, .final-results-content {
    background: rgba(0,0,0,0.2);
    padding: 40px;
    border-radius: 12px;
}
.leaderboard-content h2, .final-results-content h2 {
    font-size: 3rem;
    margin-top: 0;
}
.leaderboard-list {
    list-style: none;
    padding: 0;
    font-size: 1.5rem;
    width: 400px;
    text-align: left;
}
.leaderboard-list li {
    background-color: rgba(255,255,255,0.1);
    padding: 10px 15px;
    border-radius: 5px;
    margin-bottom: 10px;
}
.final-results-content h3 {
    font-size: 2rem;
    color: #f1c40f;
}
.final-results-content .final-score {
    font-size: 1.5rem;
    margin-bottom: 30px;
}
/* === Tambahan untuk Modal Edit === */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.6);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 1000;
}
.modal-content {
    background-color: #fff;
    padding: 30px;
    border-radius: 8px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.3);
    width: 100%;
    max-width: 600px;
}
.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid #eee;
    padding-bottom: 15px;
    margin-bottom: 20px;
}
.modal-header h2 {
    margin: 0;
    font-size: 1.5rem;
}
.close-button {
    background: none;
    border: none;
    font-size: 2rem;
    cursor: pointer;
    color: #888;
}
@media (max-width: 768px) {

    /* Perbaikan untuk antarmuka kuis di HP */
    .quiz-body #quiz-container {
        padding: 10px;
    }

    /* Kecilkan ukuran font judul yang sangat besar */
    .get-ready-content h1 {
        font-size: 4rem;
    }
    .question-main h2 {
        font-size: 1.5rem;
        margin: 15px 0;
    }
    .final-results-content h2,
    .leaderboard-content h2 {
        font-size: 2rem;
    }

    /* * INI BAGIAN PALING PENTING:
     * Mengubah grid jawaban dari 2 kolom menjadi 1 kolom di layar kecil.
     * Ini akan membuat tombol tersusun ke bawah.
    */
    .answer-options-grid {
        grid-template-columns: 1fr; /* Hanya 1 kolom */
        gap: 10px;
    }

    .answer-option {
        padding: 15px;
        font-size: 1rem;
    }

    /* Perbaikan untuk lobi di HP */
    .lobby-content h2 {
        font-size: 2rem;
    }
    .player-list {
        min-width: 280px;
    }

    /* Perbaikan untuk halaman hasil di HP */
    .results-box {
        padding: 20px;
    }
    .leaderboard-list li {
        font-size: 1rem;
    }
}

.btn-score, .btn-submitted {
    display: inline-block;
    background-color: #2ecc71; /* Hijau untuk skor */
    color: #fff;
    padding: 10px 15px;
    border-radius: 5px;
    text-align: center;
    text-decoration: none;
    margin-top: auto;
    font-weight: 600;
}
.btn-submitted {
    background-color: #95a5a6; /* Abu-abu untuk status submitted */
    cursor: default;
}
/* === START: KONSOLIDASI STYLE TAMBAHAN === */

/* Komponen Umum (Tombol Guru, Modal, Form) */
#teacherActions {
    background-color: #f4f7f6;
    border: 1px solid #e0e0e0;
    padding: 20px;
    margin-bottom: 30px;
    border-radius: 8px;
    display: none; /* Defaultnya disembunyikan */
    justify-content: center;
    align-items: center;
}
.btn-cta-teacher {
    padding: 12px 25px;
    font-size: 1.1rem;
    font-weight: 600;
    color: #fff !important;
    background-color: #27ae60;
    text-decoration: none;
    border-radius: 8px;
}
.btn-cta-teacher .fas {
    margin-right: 10px;
}
.modal-overlay {
    position: fixed; top: 0; left: 0; width: 100%; height: 100%;
    background-color: rgba(0, 0, 0, 0.6); display: none;
    justify-content: center; align-items: center; z-index: 1000;
}
.modal-content { background: #fff; padding: 30px; border-radius: 8px; text-align: center; }

.form-container {
    max-width: 800px;
    margin: 40px auto;
    background-color: #fff;
    padding: 40px;
    border-radius: 8px;
    box-shadow: 0 4px 8px rgba(0,0,0,0.08);
}
.form-group { margin-bottom: 25px; }
.form-label { display: block; font-weight: 600; color: #333; margin-bottom: 8px; }
.form-control {
    width: 100%; padding: 12px 15px; font-size: 1rem;
    font-family: 'Poppins', sans-serif; border: 1px solid #ccc;
    border-radius: 5px; box-sizing: border-box;
    transition: border-color 0.3s ease, box-shadow 0.3s ease;
}
.form-control:focus { outline: none; border-color: #3498db; box-shadow: 0 0 5px rgba(52, 152, 219, 0.5); }
.form-actions { margin-top: 30px; display: flex; justify-content: flex-end; gap: 15px; }


/* Halaman Kuis (join, manage, interface, host) */
.quiz-join-container { max-width: 600px; margin: 80px auto; padding: 40px; background-color: #fff; border-radius: 8px; box-shadow: 0 4px 8px rgba(0,0,0,0.1); text-align: center; }
.pin-input { font-family: 'Poppins', sans-serif; padding: 15px 20px; border: 2px solid #ddd; border-radius: 8px; text-align: center; font-size: 2rem; font-weight: 700; letter-spacing: 0.5em; max-width: 300px; text-transform: uppercase; }
.page-header { display: flex; justify-content: space-between; align-items: center; padding-bottom: 20px; border-bottom: 1px solid #eee; margin-bottom: 40px; }
.quiz-card { background-color: #fff; border-radius: 8px; box-shadow: 0 4px 8px rgba(0,0,0,0.08); padding: 25px; display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 20px; }
.quiz-card-info h3 { margin: 0 0 10px 0; color: #2c3e50; }
.quiz-card-meta { display: flex; gap: 15px; color: #7f8c8d; font-size: 0.9rem; }
.quiz-card-actions { display: flex; gap: 10px; align-items: center; }

.quiz-body { background: linear-gradient(45deg, #667eea, #764ba2); display: flex; justify-content: center; align-items: center; height: 100vh; color: #fff; overflow: hidden; }
#quiz-container { width: 100%; height: 100%; position: relative; }
.quiz-screen { width: 100%; height: 100%; display: flex; flex-direction: column; justify-content: center; align-items: center; text-align: center; padding: 20px; box-sizing: border-box; position: absolute; top: 0; left: 0; animation: fadeIn 0.5s ease; }
@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }
.answer-options-grid { width: 100%; max-width: 1200px; display: grid; grid-template-columns: 1fr 1fr; gap: 15px; }
.answer-option { background-color: #fff; color: #333; border: none; border-radius: 8px; padding: 20px; font-size: 1.2rem; cursor: pointer; display: flex; align-items: center; text-align: left; }
.answer-options-grid .answer-option:nth-child(1) { background-color: #e74c3c; color: #fff; }
.answer-options-grid .answer-option:nth-child(2) { background-color: #3498db; color: #fff; }
.answer-options-grid .answer-option:nth-child(3) { background-color: #f1c40f; color: #fff; }
.answer-options-grid .answer-option:nth-child(4) { background-color: #2ecc71; color: #fff; }

.host-container { text-align: center; padding-top: 40px; padding-bottom: 40px;}
.pin-display-wrapper { background: #2c3e50; color: #fff; padding: 30px; border-radius: 12px; margin: 20px 0; }
.pin-display { font-size: 5rem; font-weight: 700; background: #fff; color: #2c3e50; padding: 20px 40px; border-radius: 12px; display: inline-block; }
.player-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(180px, 1fr)); gap: 15px; max-width: 900px; margin: 30px auto; min-height: 50px; }
.player-name { background-color: #ecf0f1; color: #333; padding: 15px; border-radius: 8px; font-weight: 600; }
.presenter-question-timer { font-size: 2.5rem; }
.presenter-question-text { font-size: 2.5rem; }
.presenter-options-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; max-width: 1000px; margin: 0 auto 40px; }
.presenter-option { padding: 25px; border-radius: 8px; font-size: 1.5rem; text-align: left; }

/* Halaman Lab Virtual (do, results, submissions, analysis) */
.lab-workspace { display: flex; height: calc(100vh - 70px); }
#worksheet-panel { width: 40%; padding: 20px; overflow-y: auto; background: #f9f9f9; border-right: 1px solid #ddd; }
#simulation-panel { width: 60%; border: none; }
.worksheet-section h3 { border-bottom: 2px solid #eee; padding-bottom: 10px; }
.results-container { text-align: center; padding-top: 40px; }
.results-box { max-width: 800px; margin: 20px auto; background: #fff; padding: 30px; border-radius: 8px; box-shadow: 0 4px 15px rgba(0,0,0,0.1); }
.leaderboard-list { list-style: none; padding: 0; margin-top: 30px; text-align: left; }
.analysis-table { width: 100%; border-collapse: collapse; margin-top: 20px; }
.analysis-table th, .analysis-table td { border: 1px solid #ddd; padding: 10px; text-align: center; }
.submission-table { width: 100%; border-collapse: collapse; margin-top: 20px; }
.submission-table th, .submission-table td { border: 1px solid #ddd; padding: 12px; text-align: left; }

/* Perbaikan Tampilan Mobile (Responsif) */
@media (max-width: 768px) {
    .answer-options-grid { grid-template-columns: 1fr; }
    .lab-workspace { flex-direction: column; height: auto; }
    #worksheet-panel, #simulation-panel { width: 100%; height: 60vh; }
    /* ... (style responsif lainnya) ... */
}

/* === END: KONSOLIDASI STYLE TAMBAHAN === */

    /* Style ini bisa dipindahkan ke style.css jika Anda mau */
    #teacherActions {
        background-color: #f4f7f6;
        border: 1px solid #e0e0e0;
        padding: 20px;
        margin-bottom: 30px;
        border-radius: 8px;
        display: none; /* Sembunyi secara default */
        justify-content: center;
        align-items: center;
    }
    .btn-cta-teacher {
        padding: 12px 25px;
        font-size: 1.1rem;
        font-weight: 600;
        color: #fff !important;
        background-color: #9b59b6; /* Warna ungu khas game kata */
        text-decoration: none;
        border-radius: 8px;
    }
    .btn-cta-teacher .fas {
        margin-right: 10px;
    }