/* test.rsbad.de - Styling */

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background: #f5f5f5;
    color: #333;
}

/* Navbar */
.navbar {
    background: #4A90E2;
    color: white;
    padding: 1rem 0;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.navbar h1 {
    font-size: 1.5rem;
    font-weight: 600;
}

.nav-user {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.btn-menu {
    background: rgba(255,255,255,0.2);
    border: none;
    color: white;
    padding: 0.5rem 1rem;
    border-radius: 4px;
    cursor: pointer;
    font-size: 1.2rem;
}

.btn-menu:hover {
    background: rgba(255,255,255,0.3);
}

.user-menu {
    position: fixed;
    top: 60px;
    right: 1rem;
    background: white;
    border-radius: 8px;
    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
    padding: 1rem;
    z-index: 100;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

/* Container */
.container {
    max-width: 1200px;
    margin: 2rem auto;
    padding: 0 1rem;
}

/* Login */
.login-container {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

.login-box {
    background: white;
    border-radius: 12px;
    padding: 2rem;
    width: 100%;
    max-width: 400px;
    box-shadow: 0 10px 40px rgba(0,0,0,0.2);
}

.login-box h1 {
    text-align: center;
    margin-bottom: 0.5rem;
    color: #333;
}

.login-box p {
    text-align: center;
    color: #666;
    margin-bottom: 1.5rem;
}

/* Card */
.card {
    background: white;
    border-radius: 8px;
    padding: 1.5rem;
    margin-bottom: 1.5rem;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.card h2 {
    margin-bottom: 1rem;
    color: #333;
    font-size: 1.5rem;
}

/* Forms */
.form-group {
    margin-bottom: 1rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: #333;
}

.form-control {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-size: 1rem;
}

.form-control:focus {
    outline: none;
    border-color: #4A90E2;
    box-shadow: 0 0 0 3px rgba(74, 144, 226, 0.1);
}

.form-group small {
    display: block;
    margin-top: 0.25rem;
    color: #666;
    font-size: 0.85rem;
}

/* Buttons */
.btn {
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: 4px;
    font-size: 1rem;
    cursor: pointer;
    text-decoration: none;
    display: inline-block;
    transition: all 0.2s;
}

.btn-primary {
    background: #4A90E2;
    color: white;
}

.btn-primary:hover {
    background: #357ABD;
}

.btn-secondary {
    background: #6c757d;
    color: white;
}

.btn-secondary:hover {
    background: #5a6268;
}

.btn-danger {
    background: #dc3545;
    color: white;
}

.btn-danger:hover {
    background: #c82333;
}

.btn-block {
    width: 100%;
}

/* Alert */
.alert {
    padding: 1rem;
    border-radius: 4px;
    margin-bottom: 1rem;
}

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

.alert-success {
    background: #d4edda;
    color: #155724;
    border: 1px solid #c3e6cb;
}

.alert-info {
    background: #d1ecf1;
    color: #0c5460;
    border: 1px solid #bee5eb;
}

/* Empty State */
.empty-state {
    text-align: center;
    padding: 3rem 1rem;
    color: #666;
}

.empty-state .icon {
    font-size: 4rem;
    margin-bottom: 1rem;
}

/* Exam Grid */
.exam-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 1rem;
}

.exam-card {
    border: 1px solid #ddd;
    border-radius: 8px;
    padding: 1.5rem;
    background: #fafafa;
    transition: transform 0.2s, box-shadow 0.2s;
}

.exam-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(0,0,0,0.1);
}

.exam-card h3 {
    margin-bottom: 0.5rem;
    color: #333;
}

.exam-card p {
    color: #666;
    margin-bottom: 1rem;
}

.exam-meta {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
    margin-bottom: 1rem;
    font-size: 0.9rem;
    color: #666;
}

/* Badge */
.badge {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    border-radius: 12px;
    font-size: 0.85rem;
    font-weight: 500;
}

.badge-success {
    background: #28a745;
    color: white;
}

.badge-info {
    background: #17a2b8;
    color: white;
}

.badge-default {
    background: #6c757d;
    color: white;
}

/* Table */
.data-table {
    width: 100%;
    border-collapse: collapse;
}

.data-table th,
.data-table td {
    padding: 0.75rem;
    text-align: left;
    border-bottom: 1px solid #ddd;
}

.data-table th {
    background: #f8f9fa;
    font-weight: 600;
    color: #333;
}

.data-table tbody tr:hover {
    background: #f8f9fa;
}

/* Exam */
.timer {
    background: rgba(255,255,255,0.2);
    padding: 0.5rem 1rem;
    border-radius: 4px;
    font-weight: 600;
}

.exam-header {
    margin-bottom: 2rem;
}

.exam-info {
    display: flex;
    gap: 2rem;
    margin-top: 1rem;
    padding-top: 1rem;
    border-top: 1px solid #ddd;
    color: #666;
}

.question-block {
    background: white;
    border-radius: 12px;
    padding: 0;
    margin-bottom: 2rem;
    border: 1px solid #dee2e6;
    box-shadow: 0 2px 8px rgba(0,0,0,0.08);
    overflow: hidden;
}

.question-layout {
    display: grid;
    grid-template-columns: 500px 1fr;
    gap: 0;
    min-height: 300px;
}

.question-layout.no-image {
    grid-template-columns: 1fr;
}

.question-image-area {
    background: #f8f9fa;
    display: flex;
    align-items: stretch;
    justify-content: stretch;
    padding: 0;
    border-right: 1px solid #dee2e6;
    min-height: 300px;
    overflow: hidden;
}

.question-image-area img {
    width: 100%;
    height: 100%;
    object-fit: fill;
    border-radius: 0;
    display: block;
}

.question-image-placeholder {
    color: #adb5bd;
    font-size: 3rem;
    text-align: center;
}

.question-content-area {
    display: flex;
    flex-direction: column;
    padding: 1.5rem;
}

.question-header {
    margin-bottom: 1.5rem;
    padding-bottom: 1rem;
    border-bottom: 2px solid #f1f3f5;
}

.question-number {
    font-weight: 600;
    color: #495057;
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 0.5rem;
}

.question-points {
    display: inline-block;
    background: #4A90E2;
    color: white;
    padding: 0.25rem 0.75rem;
    border-radius: 12px;
    font-size: 0.85rem;
    font-weight: 600;
    margin-left: 0.5rem;
}

.question-text {
    font-size: 1.15rem;
    line-height: 1.6;
    color: #212529;
    font-weight: 500;
}

.question-input-area {
    flex: 1;
    display: flex;
    flex-direction: column;
}

.mc-options {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.mc-option {
    display: flex;
    align-items: center;
    padding: 1rem;
    background: white;
    border: 2px solid #dee2e6;
    border-radius: 4px;
    cursor: pointer;
    transition: all 0.2s;
}

.mc-option:hover {
    border-color: #4A90E2;
    background: #f0f7ff;
}

.mc-option input {
    margin-right: 1rem;
}

.mc-option span {
    flex: 1;
}

.exam-actions {
    display: flex;
    justify-content: flex-end;
    gap: 1rem;
    margin-top: 2rem;
    padding-top: 2rem;
    border-top: 2px solid #dee2e6;
}

/* Modal */
.modal {
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    overflow: auto;
    background-color: rgba(0,0,0,0.4);
}

.modal-content {
    background-color: #fefefe;
    margin: 5% auto;
    padding: 2rem;
    border: 1px solid #888;
    border-radius: 8px;
    width: 90%;
    max-width: 500px;
}

.close {
    color: #aaa;
    float: right;
    font-size: 28px;
    font-weight: bold;
    cursor: pointer;
}

.close:hover,
.close:focus {
    color: black;
}

/* Match (Zuordnung) */
.match-container {
    margin: 1rem 0;
}

.match-columns {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
}

.match-left h4,
.match-right h4 {
    margin-bottom: 1rem;
    color: #333;
}

.match-item {
    background: #4A90E2;
    color: white;
    padding: 1rem;
    margin-bottom: 0.5rem;
    border-radius: 4px;
    cursor: move;
    user-select: none;
}

.match-item:hover {
    background: #357ABD;
}

.match-target {
    margin-bottom: 0.5rem;
}

.match-target-label {
    font-weight: 500;
    margin-bottom: 0.5rem;
}

.match-drop-zone {
    min-height: 50px;
    background: white;
    border: 2px dashed #dee2e6;
    border-radius: 4px;
    padding: 1rem;
    display: flex;
    align-items: center;
    justify-content: center;
}

.match-drop-zone.dragover {
    border-color: #4A90E2;
    background: #f0f7ff;
}

.match-placeholder {
    color: #999;
    font-style: italic;
}

.match-item-dropped {
    background: #28a745;
    color: white;
    padding: 0.75rem;
    border-radius: 4px;
    width: 100%;
}

/* Fill Blank (Lückentext) */
.fill-blank-container {
    margin: 1rem 0;
}

.blank-item {
    margin-bottom: 1rem;
}

.blank-hint {
    color: #666;
    font-size: 0.9rem;
    font-style: italic;
}

.blank-input {
    max-width: 300px;
}

/* Grid Color (Raster färben) */
.grid-color-container {
    margin: 1rem 0;
}

.grid-color {
    display: grid;
    grid-template-columns: repeat(auto-fit, 50px);
    gap: 4px;
    max-width: fit-content;
}

.grid-cell {
    width: 50px;
    height: 50px;
    border: 2px solid #333;
    cursor: pointer;
    transition: transform 0.1s;
}

.grid-cell:hover {
    transform: scale(1.1);
}

.grid-cell.black {
    background: #000;
}

.grid-cell.white {
    background: #fff;
}

.grid-legend {
    margin-top: 1rem;
    display: flex;
    gap: 1rem;
}

.grid-legend-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.grid-legend .grid-cell {
    width: 30px;
    height: 30px;
    cursor: default;
}

.grid-legend .grid-cell:hover {
    transform: none;
}

/* Binary Visual (Binärdarstellung) */
.binary-visual-container {
    margin: 1rem 0;
}

.binary-grid {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 1rem;
}

.binary-bit-group {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.binary-bit-value {
    font-size: 0.85rem;
    color: #666;
    margin-bottom: 0.25rem;
}

.binary-bit {
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 2px solid #dee2e6;
    border-radius: 4px;
    background: white;
    font-size: 1.5rem;
    font-weight: bold;
    cursor: pointer;
    transition: all 0.2s;
}

.binary-bit:hover {
    border-color: #4A90E2;
}

.binary-bit.active {
    background: #4A90E2;
    color: white;
    border-color: #357ABD;
}

.binary-result {
    margin-top: 1rem;
    padding: 1rem;
    background: #f8f9fa;
    border-radius: 4px;
    font-weight: bold;
    text-align: center;
}

/* Table Fill (Tabelle ausfüllen) */
.table-fill-container {
    margin: 1rem 0;
    overflow-x: auto;
}

.table-fill {
    width: 100%;
    border-collapse: collapse;
}

.table-fill th,
.table-fill td {
    padding: 0.75rem;
    text-align: left;
    border: 1px solid #dee2e6;
}

.table-fill th {
    background: #f8f9fa;
    font-weight: 600;
}

.table-cell-input {
    width: 100%;
    padding: 0.5rem;
    border: 1px solid #ddd;
    border-radius: 4px;
}

.table-cell-input:focus {
    outline: none;
    border-color: #4A90E2;
}

/* Huffman Tree */
.huffman-container {
    margin: 1rem 0;
}

.huffman-instruction {
    margin-bottom: 1rem;
    color: #666;
    font-style: italic;
}

.huffman-inputs {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 1rem;
}

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

.huffman-freq {
    font-size: 0.9rem;
    color: #666;
    font-weight: normal;
}

.huffman-code-input {
    width: 100%;
    font-family: 'Courier New', monospace;
}

/* Results Page */
.result-summary {
    text-align: center;
    padding: 2rem 0;
    border-bottom: 2px solid #dee2e6;
    margin-bottom: 2rem;
}

.result-score {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1.5rem;
    margin-top: 1.5rem;
}

.score-circle {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border-radius: 50%;
    width: 200px;
    height: 200px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    box-shadow: 0 10px 30px rgba(0,0,0,0.2);
}

.score-value {
    font-size: 2rem;
    font-weight: bold;
}

.score-percentage {
    font-size: 1.2rem;
    opacity: 0.9;
    margin-top: 0.5rem;
}

.score-grade {
    font-size: 1.5rem;
    padding: 1rem 2rem;
    background: #f8f9fa;
    border-radius: 8px;
}

.score-grade strong {
    font-size: 2.5rem;
    color: #4A90E2;
    margin-left: 0.5rem;
}

.result-details {
    margin-top: 2rem;
}

.result-question {
    background: #f8f9fa;
    border-radius: 8px;
    padding: 1.5rem;
    margin-bottom: 1.5rem;
    border-left: 4px solid #4A90E2;
}

.result-question-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
    padding-bottom: 0.5rem;
    border-bottom: 1px solid #dee2e6;
}

.result-question-number {
    font-weight: bold;
    color: #4A90E2;
}

.result-question-points {
    font-weight: bold;
    color: #333;
}

.result-question-text {
    margin-bottom: 1rem;
    font-size: 1.05rem;
}

.result-mc-options {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.result-mc-option {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem;
    background: white;
    border: 2px solid #dee2e6;
    border-radius: 4px;
}

.result-mc-option.correct {
    border-color: #28a745;
    background: #d4edda;
}

.result-mc-option.wrong.selected {
    border-color: #dc3545;
    background: #f8d7da;
}

.result-mc-option.selected {
    font-weight: bold;
}

.result-badge {
    padding: 0.25rem 0.75rem;
    border-radius: 12px;
    font-size: 0.85rem;
    font-weight: 600;
}

.result-badge.correct {
    background: #28a745;
    color: white;
}

.result-badge.wrong {
    background: #dc3545;
    color: white;
}

.result-text-answer,
.result-other-answer {
    margin-top: 1rem;
}

.result-label {
    font-weight: 600;
    color: #666;
    margin-bottom: 0.5rem;
}

.result-text-content {
    padding: 1rem;
    background: white;
    border: 1px solid #dee2e6;
    border-radius: 4px;
}

.result-info {
    text-align: center;
    padding: 2rem;
    color: #666;
}

/* ============================================
   EXAM MODE - Modern iPad-Optimized Design
   ============================================ */

:root {
    --primary: #4A90E2;
    --primary-dark: #357ABD;
    --secondary: #5BA3D0;
    --success: #10B981;
    --warning: #F59E0B;
    --error: #EF4444;
    --background: #F8FAFC;
    --card-bg: #FFFFFF;
    --text-primary: #1E293B;
    --text-secondary: #64748B;
    --border: #E2E8F0;
}

.exam-body {
    background: linear-gradient(135deg, #4A90E2 0%, #357ABD 100%);
    min-height: 100vh;
    margin: 0;
    padding: 0;
}

/* Exam Navbar */
.exam-navbar {
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(10px);
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    position: sticky;
    top: 0;
    z-index: 100;
}

.exam-nav-content {
    max-width: 1400px;
    margin: 0 auto;
    padding: 1rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.exam-title {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
}

.exam-nav-right {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.exam-timer {
    background: var(--primary);
    color: white;
    padding: 0.5rem 1.25rem;
    border-radius: 20px;
    font-weight: 600;
    font-size: 1rem;
}

.exam-timer.timer-warning {
    background: var(--error);
    animation: pulse 1s infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.7; }
}

.btn-exit {
    background: none;
    border: none;
    font-size: 1.5rem;
    color: var(--text-secondary);
    cursor: pointer;
    padding: 0.5rem;
    border-radius: 50%;
    transition: all 0.2s;
}

.btn-exit:hover {
    background: rgba(239, 68, 68, 0.1);
    color: var(--error);
}

/* Progress Bar */
.progress-container {
    background: white;
    position: relative;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.progress-bar {
    position: absolute;
    left: 0;
    top: 0;
    height: 100%;
    background: var(--primary);
    transition: width 0.3s ease;
    width: 0%;
}

.progress-text {
    position: relative;
    z-index: 1;
    font-weight: 600;
    color: var(--text-primary);
    font-size: 1rem;
}

/* Question Navigation Pills */
.question-nav-container {
    background: white;
    padding: 1rem 0;
    overflow-x: auto;
    border-bottom: 1px solid var(--border);
}

.question-nav {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 2rem;
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
    justify-content: center;
}

.question-pill {
    min-width: 45px;
    height: 45px;
    border-radius: 50%;
    border: 2px solid var(--border);
    background: white;
    color: var(--text-secondary);
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
    display: flex;
    align-items: center;
    justify-content: center;
}

.question-pill:hover {
    transform: scale(1.1);
    border-color: var(--primary);
}

.question-pill.active {
    background: var(--primary);
    border-color: var(--primary);
    color: white;
    transform: scale(1.15);
}

.question-pill.answered:not(.active) {
    background: var(--success);
    border-color: var(--success);
    color: white;
}

/* Exam Container */
.exam-container {
    max-width: 1400px;
    margin: 2rem auto;
    padding: 0 2rem 2rem;
}

.exam-content {
    background: white;
    border-radius: 20px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    overflow: hidden;
}

.question-slide {
    min-height: 500px;
}

/* Question Block - Modern Style */
.question-block {
    background: white;
    box-shadow: none;
    border: none;
    border-radius: 0;
}

.question-layout {
    min-height: 450px;
}

.question-image-area {
    background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
    border-right: none;
}

.question-header {
    border-bottom: 2px solid #f1f3f5;
}

.question-points {
    background: var(--primary);
}

/* Exam Navigation Buttons */
.exam-navigation {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 2rem;
    background: linear-gradient(to bottom, transparent, #f8f9fa);
    gap: 1rem;
}

.btn-nav {
    padding: 1rem 2.5rem;
    border: none;
    border-radius: 12px;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.btn-nav-prev, .btn-nav-next {
    background: var(--primary);
    color: white;
    min-width: 180px;
    justify-content: center;
}

.btn-nav-prev:hover, .btn-nav-next:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(74, 144, 226, 0.4);
}

/* Submit Section */
.exam-submit {
    padding: 2rem;
    text-align: center;
    background: linear-gradient(to bottom, #f8f9fa, white);
}

.btn-submit {
    background: var(--success);
    color: white;
    border: none;
    padding: 1.25rem 3rem;
    border-radius: 12px;
    font-size: 1.25rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
    box-shadow: 0 4px 20px rgba(16, 185, 129, 0.3);
}

.btn-submit:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 30px rgba(16, 185, 129, 0.5);
}

/* Notifications */
.notification {
    position: fixed;
    top: 100px;
    right: 20px;
    background: white;
    padding: 1rem 1.5rem;
    border-radius: 12px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.2);
    font-weight: 600;
    z-index: 1000;
    transform: translateX(400px);
    transition: transform 0.3s ease;
}

.notification.show {
    transform: translateX(0);
}

.notification-success {
    border-left: 4px solid var(--success);
    color: var(--success);
}

.notification-error {
    border-left: 4px solid var(--error);
    color: var(--error);
}

/* iPad Optimizations */
@media (min-width: 768px) and (max-width: 1024px) {
    .exam-container {
        max-width: 100%;
        padding: 1rem;
    }

    .question-layout {
        grid-template-columns: 550px 1fr;
    }

    .question-nav {
        padding: 0 1rem;
    }
}

/* Mobile Responsive */
@media (max-width: 768px) {
    .nav-container {
        flex-direction: column;
        gap: 1rem;
    }

    .exam-info {
        flex-direction: column;
        gap: 0.5rem;
    }

    .exam-actions {
        flex-direction: column;
    }

    .btn {
        width: 100%;
    }

    .match-columns {
        grid-template-columns: 1fr;
    }

    .binary-grid {
        flex-wrap: wrap;
    }

    .huffman-inputs {
        grid-template-columns: 1fr;
    }

    .question-layout {
        grid-template-columns: 1fr !important;
    }

    .question-image-area {
        border-right: none;
        border-bottom: 1px solid #dee2e6;
        min-height: 200px;
    }

    .exam-nav-content {
        padding: 1rem;
    }

    .exam-title {
        font-size: 1rem;
    }

    .exam-timer {
        font-size: 0.9rem;
        padding: 0.4rem 1rem;
    }

    .exam-container {
        margin: 1rem auto;
        padding: 0 1rem 1rem;
    }

    .exam-navigation {
        flex-direction: column;
        gap: 0.75rem;
    }

    .btn-nav {
        width: 100%;
        justify-content: center;
    }

    .question-nav {
        padding: 0 1rem;
    }

    .notification {
        right: 10px;
        left: 10px;
    }
}