:root {
    --background: #f8fafc;
    --surface: #ffffff;
    --primary: #4f46e5;
    --primary-hover: #4338ca;
    --primary-lighter: #818cf8;
    --primary-darker: #3730a3;
    --success: #10b981;
    --error: #ef4444;
    --warning: #f59e0b;
    --info: #3b82f6;
    --text: #1e293b;
    --text-secondary: #64748b;
    --border: #e2e8f0;
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1),
              0 2px 4px -2px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1),
                0 4px 6px -4px rgba(0, 0, 0, 0.1);
    --radius-sm: 0.375rem;
    --radius: 0.5rem;
    --radius-md: 0.75rem;
    --radius-lg: 1rem;
    --transition: 0.2s ease;
    --container-width: 1200px;
    --header-height: 64px;
}

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

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&display=swap');

body {
    font-family: 'Inter', system-ui, -apple-system, sans-serif;
    line-height: 1.6;
    background-color: var(--background);
    color: var(--text);
    min-height: 100vh;
    padding: 2rem;
    transition: background-color 0.3s ease, color 0.3s ease;
    scrollbar-width: thin;
    scrollbar-color: var(--primary-lighter) var(--background);
}

body::-webkit-scrollbar {
    width: 8px;
}

body::-webkit-scrollbar-track {
    background: var(--background);
}

body::-webkit-scrollbar-thumb {
    background-color: var(--primary-lighter);
    border-radius: 4px;
}

@media (max-width: 768px) {
    body {
        padding: 1rem;
    }
}

.container {
    max-width: var(--container-width);
    margin: 0 auto;
    width: 100%;
}

.section {
    background-color: var(--surface);
    padding: 2rem;
    border-radius: var(--radius-lg);
    margin-bottom: 2rem;
    box-shadow: var(--shadow);
    transition: transform var(--transition), box-shadow var(--transition);
}

.section:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

h2, h3, h4 {
    color: var(--text);
    margin-bottom: 1.5rem;
    font-weight: 600;
    line-height: 1.3;
}

h2 {
    font-size: 1.75rem;
}

h2 i {
    margin-right: 0.5rem;
    color: var(--primary);
}

h3 {
    font-size: 1.5rem;
}

h4 {
    font-size: 1.25rem;
}

input, textarea {
    width: 100%;
    padding: 0.75rem 1rem;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    font-family: inherit;
    color: var(--text);
    transition: border-color var(--transition), box-shadow var(--transition);
    background-color: var(--surface);
    font-size: 1rem;
}

textarea {
    resize: vertical;
    min-height: 120px;
    font-family: 'Roboto Mono', monospace;
    line-height: 1.5;
}

input:focus, textarea:focus, button:focus {
    outline: none;
    box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.3);
}

input:focus, textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.2);
}

button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    background-color: var(--primary);
    color: white;
    font-weight: 500;
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: var(--radius);
    cursor: pointer;
    transition: background-color var(--transition), transform var(--transition);
    font-size: 1rem;
}

button:hover {
    background-color: var(--primary-hover);
    transform: translateY(-1px);
}

button:active {
    transform: scale(0.98);
}

button:disabled {
    background-color: #cbd5e1;
    cursor: not-allowed;
    transform: none;
}

button i {
    font-size: 1.1em;
}

.hidden {
    display: none;
}

#auth-section {
    max-width: 480px;
    margin: 4rem auto 2rem auto;
}

#auth-section h2 {
    text-align: center;
    margin-bottom: 2rem;
}

#auth-section input {
    margin-bottom: 1rem;
}

#auth-section button {
    width: 100%;
    margin-top: 0.5rem;
    margin-bottom: 1.5rem;
}

#auth-section p {
    text-align: center;
    color: var(--text-secondary);
}

#auth-section a {
    color: var(--primary);
    text-decoration: none;
    font-weight: 500;
    transition: color var(--transition);
}

#auth-section a:hover {
    color: var(--primary-darker);
    text-decoration: underline;
}

#login-form, #register-form {
    transition: opacity 0.3s ease, transform 0.3s ease;
}

#login-form.hiding, #register-form.hiding {
    opacity: 0;
    transform: translateY(10px);
}

.profile-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
    flex-wrap: wrap;
    gap: 1rem;
}

#logout-btn {
    background-color: #ef4444;
}

#logout-btn:hover {
    background-color: #dc2626;
}

.question {
    background-color: var(--surface);
    padding: 1.5rem;
    border-radius: var(--radius);
    margin-bottom: 1.5rem;
    border: 1px solid var(--border);
    transition: box-shadow var(--transition);
}

.question:hover {
    box-shadow: var(--shadow);
}

.question textarea {
    margin-top: 1rem;
}

#questions-container {
    margin-bottom: 2rem;
}

.loader {
    display: none;
    width: 2.5rem;
    height: 2.5rem;
    border: 0.25rem solid rgba(99, 102, 241, 0.1);
    border-radius: 50%;
    border-top: 0.25rem solid var(--primary);
    animation: spin 1s linear infinite;
    margin: 1.5rem auto;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.loading-text {
    display: none;
}

.loading-text.visible {
    display: block;
    text-align: center;
    color: var(--text-secondary);
    margin: 1rem 0 1.5rem;
    font-weight: 500;
}

#score-container {
    font-size: 1.5rem;
    font-weight: 600;
    text-align: center;
    margin: 1.5rem 0;
    color: var(--primary);
    padding: 1.5rem;
    background-color: rgba(99, 102, 241, 0.1);
    border-radius: var(--radius);
}

.feedback-item {
    margin-bottom: 1.5rem;
    padding: 1.25rem;
    background-color: var(--background);
    border-radius: var(--radius);
    border-left: 4px solid var(--primary);
}

#history-container {
    margin-top: 1.5rem;
}

.history-item {
    padding: 1.25rem;
    background-color: var(--surface);
    border-radius: var(--radius);
    margin-bottom: 1rem;
    border: 1px solid var(--border);
    transition: transform var(--transition), box-shadow var(--transition);
}

.history-item:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow);
}

.history-item .score {
    font-weight: 600;
    color: var(--primary);
    font-size: 1.1rem;
    display: block;
    margin-bottom: 0.5rem;
}

.history-item .date {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.history-item .duration {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-right: 0.75rem;
}

/* Notification system */
#notification-container {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 1000;
}

.notification {
    background-color: var(--surface);
    border-radius: var(--radius);
    padding: 1rem 1.25rem;
    margin-bottom: 0.75rem;
    box-shadow: var(--shadow-lg);
    display: flex;
    align-items: center;
    justify-content: space-between;
    min-width: 320px;
    max-width: 450px;
    animation: slideIn 0.4s ease-out;
    transition: all 0.3s ease;
}

.notification.hiding {
    animation: slideOut 0.4s ease-in;
}

.notification-content {
    flex-grow: 1;
    margin-right: 1rem;
}

.notification-title {
    font-weight: 600;
    margin-bottom: 0.25rem;
    color: var(--text);
}

.notification-message {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.notification-close {
    cursor: pointer;
    color: var(--text-secondary);
    font-size: 1.25rem;
    line-height: 1;
    transition: color 0.2s;
}

.notification-close:hover {
    color: var(--text);
}

/* Notification types */
.notification.success {
    border-left: 4px solid var(--success);
}

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

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

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

@keyframes slideIn {
    from {
        transform: translateX(100%);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

@keyframes slideOut {
    from {
        transform: translateX(0);
        opacity: 1;
    }
    to {
        transform: translateX(100%);
        opacity: 0;
    }
}

/* Timer */
.timer-display {
    background-color: var(--background);
    padding: 1rem;
    border-radius: var(--radius);
    margin-bottom: 1.5rem;
    text-align: center;
}

.timer {
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem 1.25rem;
    background-color: var(--surface);
    border: 2px solid var(--primary);
    border-radius: 2rem;
    box-shadow: var(--shadow-sm);
}

.timer-icon {
    font-size: 1.25rem;
    color: var(--primary);
}

.timer-text {
    color: var(--primary);
    font-family: monospace;
    font-size: 1.25rem;
    font-weight: 600;
}

/* Results */
.results-header {
    background-color: var(--background);
    padding: 1.5rem;
    border-radius: var(--radius);
    margin-bottom: 2rem;
}

.results-header p {
    margin: 0.5rem 0;
}

.results-header .score {
    font-size: 1.75rem;
    color: var(--success);
    font-weight: 700;
}

.results-header .duration,
.results-header .avg-time {
    color: var(--text-secondary);
    font-size: 1.1rem;
}

/* Exams Grid */
.exams-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 1.5rem;
    margin-top: 1.5rem;
}

.exam-card {
    background-color: var(--surface);
    border-radius: var(--radius);
    padding: 1.5rem;
    box-shadow: var(--shadow);
    display: flex;
    flex-direction: column;
    gap: 1rem;
    transition: transform var(--transition), box-shadow var(--transition);
    border: 1px solid var(--border);
}

.exam-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
}

.exam-card h4 {
    color: var(--primary);
    margin: 0;
    font-size: 1.25rem;
}

.exam-link {
    color: var(--success);
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 500;
    padding: 0.75rem 0;
    transition: color var(--transition);
}

.exam-link:hover {
    color: #0d9488;
}

.link-icon {
    font-size: 1rem;
    transition: transform 0.3s;
}

.exam-link:hover .link-icon {
    transform: translateX(4px) translateY(-2px);
}

.start-exam-btn {
    background-color: var(--primary);
    color: white;
    border: none;
    padding: 0.75rem 1rem;
    border-radius: var(--radius);
    cursor: pointer;
    font-weight: 500;
    transition: background-color var(--transition), transform var(--transition);
    text-align: center;
}

.start-exam-btn:hover {
    background-color: var(--primary-hover);
    transform: translateY(-2px);
    animation: pulse 1s infinite;
}

@keyframes pulse {
    0% { transform: scale(1); }
    50% { transform: scale(1.05); }
    100% { transform: scale(1); }
}

.exam-card p {
    color: var(--text-secondary);
    margin: 0;
}

/* Global Scores */
.global-scores {
    display: flex;
    justify-content: space-around;
    margin: 2rem 0 3rem 0;
    gap: 1.5rem;
    flex-wrap: wrap;
}

@media (max-width: 768px) {
    .global-scores {
        flex-direction: column;
    }
    
    .score-card {
        max-width: 100%;
    }
}

.score-card {
    background-color: var(--surface);
    padding: 1.5rem;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    text-align: center;
    flex: 1;
    max-width: 300px;
    transition: transform var(--transition), box-shadow var(--transition);
    border: 1px solid var(--border);
}

.score-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
}

.score-card h4 {
    color: var(--text);
    margin-bottom: 1rem;
    font-size: 1.2rem;
}

.global-score {
    font-size: 2.5rem;
    color: var(--primary);
    font-weight: 700;
    margin: 0;
    line-height: 1;
}

/* Editor Area */
#editor-container {
    height: 400px;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    margin-bottom: 1.5rem;
    overflow: hidden;
}

#validate-code {
    background-color: var(--primary);
    color: white;
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: var(--radius);
    cursor: pointer;
    margin-top: 1rem;
    font-weight: 500;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

#validate-code:hover {
    background-color: var(--primary-hover);
}

#validation-result {
    margin-top: 1.5rem;
    padding: 1.5rem;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
}

#validation-result.valid {
    background-color: rgba(16, 185, 129, 0.1);
    border-left: 4px solid var(--success);
}

#validation-result.invalid {
    background-color: rgba(239, 68, 68, 0.1);
    border-left: 4px solid var(--error);
}

/* Progress Bar */
.progress-container {
    margin-bottom: 2rem;
}

.progress-stats {
    display: flex;
    justify-content: space-between;
    margin-bottom: 0.5rem;
    color: var(--text-secondary);
    font-size: 0.95rem;
}

.progress-text {
    font-weight: 500;
}

#current-question, #total-questions {
    font-weight: 600;
}

.time-elapsed {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.time-elapsed i {
    color: var(--primary);
}

.progress-bar {
    width: 100%;
    height: 8px;
    background-color: var(--background);
    border-radius: 4px;
    overflow: hidden;
    position: relative;
}

.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--primary-lighter), var(--primary));
    border-radius: 4px;
    transition: width 0.4s ease;
}

/* Progress Bar and Quiz Navigation */
.question-navigation {
    display: flex;
    justify-content: space-between;
    margin: 1.5rem 0;
}

.nav-btn {
    background-color: var(--background);
    color: var(--text);
    padding: 0.625rem 1rem;
    border-radius: var(--radius);
    border: 1px solid var(--border);
    font-weight: 500;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.nav-btn:hover:not(:disabled) {
    background-color: var(--primary);
    color: white;
    transform: translateY(-2px);
}

.nav-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    background-color: var(--background);
    color: var(--text-secondary);
}

/* Tooltip System */
.tooltip {
    position: absolute;
    background-color: var(--surface);
    color: var(--text);
    padding: 0.75rem 1rem;
    border-radius: var(--radius);
    box-shadow: var(--shadow-lg);
    z-index: 1000;
    max-width: 250px;
    font-size: 0.9rem;
    border: 1px solid var(--border);
    opacity: 0;
    transition: opacity 0.3s ease, transform 0.3s ease;
    pointer-events: none;
}

.tooltip.visible {
    opacity: 1;
    pointer-events: auto;
}

.tooltip::before {
    content: '';
    position: absolute;
    width: 10px;
    height: 10px;
    background-color: var(--surface);
    transform: rotate(45deg);
    z-index: -1;
    border: 1px solid var(--border);
}

.tooltip.top::before {
    bottom: -6px;
    left: calc(50% - 5px);
    border-top: none;
    border-left: none;
}

.tooltip.bottom::before {
    top: -6px;
    left: calc(50% - 5px);
    border-bottom: none;
    border-right: none;
}

.tooltip.right::before {
    left: -6px;
    top: calc(50% - 5px);
    border-right: none;
    border-bottom: none;
}

.tooltip.left::before {
    right: -6px;
    top: calc(50% - 5px);
    border-left: none;
    border-top: none;
}

/* Question Styling Improvements */
.question {
    position: relative;
    transition: all 0.3s ease;
}

.question:not(.active) {
    display: none;
}

.question.active {
    display: block;
    animation: fadeIn 0.3s forwards;
}

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

.question-number {
    background-color: var(--primary);
    color: white;
    width: 30px;
    height: 30px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    position: absolute;
    top: -15px;
    left: -15px;
}

.question-content {
    margin-top: 1.5rem;
    margin-bottom: 1rem;
    line-height: 1.6;
}

.question-code {
    background-color: var(--background);
    padding: 1rem;
    border-radius: var(--radius);
    font-family: 'Roboto Mono', monospace;
    margin: 1rem 0;
    overflow-x: auto;
    border: 1px solid var(--border);
}

.question textarea {
    transition: all 0.2s ease;
    border: 1px solid var(--border);
}

.question textarea:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.2);
}

/* Help Elements */
.help-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background-color: var(--primary-lighter);
    color: white;
    font-size: 12px;
    margin-left: 0.5rem;
    cursor: pointer;
    transition: all 0.2s ease;
}

.help-icon:hover {
    background-color: var(--primary);
    transform: scale(1.1);
}

/* Additional Responsive Improvements */
@media (max-width: 768px) {
    .question-navigation {
        flex-direction: column;
        gap: 0.75rem;
    }
    
    .nav-btn {
        width: 100%;
        justify-content: center;
    }
    
    .progress-stats {
        flex-direction: column;
        gap: 0.5rem;
        align-items: center;
    }
}

/* Footer */
footer {
    text-align: center;
    padding: 1.5rem 0;
    margin-top: 2rem;
    color: var(--text-secondary);
    font-size: 0.9rem;
}

/* Empty state styling */
.empty-state {
    padding: 2rem;
    text-align: center;
    color: var(--text-secondary);
    background-color: var(--background);
    border-radius: var(--radius);
    margin: 1.5rem 0;
}

.empty-state i {
    font-size: 3rem;
    color: var(--primary-lighter);
    margin-bottom: 1rem;
    opacity: 0.7;
}

.empty-state p {
    margin: 0.5rem 0;
}

/* Media Queries for Responsiveness */
@media (max-width: 768px) {
    .section {
        padding: 1.5rem;
    }
    
    .exams-grid {
        grid-template-columns: 1fr;
    }
    
    .profile-header {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .notification {
        min-width: calc(100vw - 40px);
        max-width: calc(100vw - 40px);
    }
}

@media (max-width: 480px) {
    body {
        padding: 0.75rem;
    }
    
    .section {
        padding: 1.25rem;
        border-radius: var(--radius);
    }
    
    h2 {
        font-size: 1.5rem;
    }
    
    button {
        padding: 0.625rem 1.25rem;
    }
}

/* Styles pour les exercices de code */
.exercise-layout {
    display: flex;
    gap: 20px;
    min-height: 80vh;
    margin-bottom: 20px;
}

.exercise-instructions {
    width: 25%;
    padding: 20px;
    background-color: var(--section-bg);
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    overflow-y: auto;
    display: flex;
    flex-direction: column;
}

.exercise-header {
    margin-bottom: 20px;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 15px;
}

.exercise-header h2 {
    margin-bottom: 10px;
    color: var(--primary-color);
    display: flex;
    align-items: center;
    gap: 8px;
}

.exercise-meta {
    display: flex;
    gap: 15px;
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.exercise-meta span {
    display: flex;
    align-items: center;
    gap: 5px;
}

.exercise-description {
    flex: 1;
    overflow-y: auto;
    padding-right: 10px;
    line-height: 1.6;
}

.exercise-description code {
    background-color: var(--code-bg);
    padding: 2px 4px;
    border-radius: 3px;
    font-family: 'Roboto Mono', monospace;
    font-size: 0.9rem;
}

.exercise-description pre {
    background-color: var(--code-bg);
    padding: 15px;
    border-radius: var(--border-radius);
    overflow-x: auto;
    margin: 15px 0;
    font-family: 'Roboto Mono', monospace;
    font-size: 0.85rem;
    line-height: 1.5;
}

.exercise-result {
    margin-top: 20px;
    background-color: var(--success-light);
    border-radius: var(--border-radius);
    padding: 15px;
    position: relative;
}

.exercise-result.error {
    background-color: var(--error-light);
}

.result-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 10px;
}

.result-header h3 {
    margin: 0;
    color: var(--success-color);
    display: flex;
    align-items: center;
    gap: 8px;
}

.exercise-result.error .result-header h3 {
    color: var(--error-color);
}

.result-content {
    font-size: 0.9rem;
    line-height: 1.5;
}

.code-workspace-container {
    width: 75%;
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.code-workspace {
    flex: 1;
    display: flex;
    flex-direction: column;
    background-color: var(--section-bg);
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    overflow: hidden;
}

.workspace-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px 15px;
    background-color: var(--header-bg);
    border-bottom: 1px solid var(--border-color);
}

.file-tabs {
    display: flex;
    gap: 5px;
}

.tab {
    padding: 8px 15px;
    border-radius: var(--border-radius);
    cursor: pointer;
    font-size: 0.9rem;
    color: var(--text-secondary);
    transition: all 0.2s ease;
}

.tab:hover {
    background-color: rgba(255, 255, 255, 0.1);
}

.tab.active {
    background-color: var(--primary-color);
    color: white;
}

.workspace-controls {
    display: flex;
    gap: 10px;
}

.control-btn {
    background: none;
    border: none;
    color: var(--text-secondary);
    font-size: 1rem;
    cursor: pointer;
    padding: 5px;
    border-radius: 50%;
    width: 30px;
    height: 30px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s ease;
}

.control-btn:hover {
    background-color: rgba(255, 255, 255, 0.1);
    color: var(--text-primary);
}

.monaco-editor {
    flex: 1;
    min-height: 400px;
    border-radius: 0 0 var(--border-radius) var(--border-radius);
}

.editor-footer {
    padding: 15px;
    display: flex;
    justify-content: flex-end;
    gap: 10px;
    border-top: 1px solid var(--border-color);
}

.console-output {
    background-color: var(--code-bg);
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    overflow: hidden;
    height: 200px;
    display: flex;
    flex-direction: column;
}

.console-header {
    padding: 10px 15px;
    background-color: var(--header-bg);
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid var(--border-color);
}

.console-header h3 {
    margin: 0;
    font-size: 0.95rem;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 8px;
}

.clear-btn {
    background: none;
    border: none;
    color: var(--text-secondary);
    font-size: 0.85rem;
    cursor: pointer;
    padding: 5px 10px;
    border-radius: var(--border-radius);
    display: flex;
    align-items: center;
    gap: 5px;
    transition: color var(--transition);
}

.clear-btn:hover {
    color: var(--text-primary);
}

.console-content {
    flex: 1;
    padding: 15px;
    overflow-y: auto;
    font-family: 'Roboto Mono', monospace;
    font-size: 0.85rem;
    line-height: 1.5;
    color: var(--text-primary);
}

.console-line {
    margin-bottom: 5px;
    white-space: pre-wrap;
    word-break: break-word;
}

.console-prompt {
    color: var(--primary-color);
    margin-right: 5px;
}

.console-error {
    color: var(--error-color);
}

.console-success {
    color: var(--success-color);
}

.console-info {
    color: var(--info-color);
}

/* Classes d'animation pour les entrées console */
.console-line-new {
    animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(-5px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Styles pour l'en-tête de l'application */
.app-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 0;
    margin-bottom: 20px;
    border-bottom: 1px solid var(--border-color);
}

.app-header h1 {
    margin: 0;
    color: var(--primary-color);
}

.nav-btn {
    background-color: transparent;
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    padding: 8px 15px;
    border-radius: var(--border-radius);
    font-size: 0.9rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 8px;
    transition: all 0.2s ease;
}

.nav-btn:hover {
    background-color: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
}

.close-btn {
    background: none;
    border: none;
    color: var(--text-secondary);
    font-size: 1rem;
    cursor: pointer;
    padding: 5px;
    border-radius: 50%;
    width: 30px;
    height: 30px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s ease;
}

.close-btn:hover {
    background-color: rgba(255, 255, 255, 0.1);
    color: var(--text-primary);
}

.hidden {
    display: none !important;
}

/* Styles pour les tooltips */
.tooltip {
    position: absolute;
    background-color: var(--tooltip-bg);
    color: var(--tooltip-text);
    padding: 8px 12px;
    border-radius: var(--border-radius);
    font-size: 0.8rem;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
    z-index: 1000;
    max-width: 300px;
    pointer-events: none;
    opacity: 0;
    transition: opacity 0.2s ease;
}

.tooltip.visible {
    opacity: 1;
}

/* Style du footer */
footer {
    text-align: center;
    padding: 20px 0;
    margin-top: 30px;
    border-top: 1px solid var(--border-color);
    color: var(--text-secondary);
    font-size: 0.9rem;
}

/* Responsive design pour les exercices de code */
@media (max-width: 1024px) {
    .exercise-layout {
        flex-direction: column;
    }
    
    .exercise-instructions,
    .code-workspace-container {
        width: 100%;
    }
    
    .exercise-instructions {
        max-height: 300px;
    }
}

@media (max-width: 768px) {
    .app-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 10px;
    }
    
    .workspace-header {
        flex-direction: column;
        gap: 10px;
    }
    
    .editor-footer {
        flex-direction: column;
    }
    
    .editor-footer button {
        width: 100%;
    }
}

/* Styles pour le menu de fonctionnalités */
.feature-menu {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
    margin: 1.5rem 0 2rem 0;
}

.feature-card {
    background-color: var(--surface);
    border-radius: var(--radius);
    padding: 1.5rem;
    box-shadow: var(--shadow);
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: 0.75rem;
    transition: transform var(--transition), box-shadow var(--transition);
    border: 1px solid var(--border);
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.feature-icon {
    font-size: 2.5rem;
    color: var(--primary);
    margin-bottom: 0.5rem;
}

.feature-card h3 {
    margin: 0;
    color: var(--text);
    font-size: 1.25rem;
}

.feature-card p {
    color: var(--text-secondary);
    margin: 0;
    line-height: 1.5;
}

.feature-btn {
    margin-top: 1rem;
    background-color: var(--primary);
    color: white;
    border: none;
    padding: 0.75rem 1.5rem;
    border-radius: var(--radius);
    font-weight: 500;
    transition: all var(--transition);
}

.feature-btn:hover {
    background-color: var(--primary-hover);
    transform: translateY(-2px);
}

#quiz-history h3 {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding-bottom: 0.75rem;
    border-bottom: 1px solid var(--border);
    margin-bottom: 1.25rem;
}

#quiz-history h3 i {
    color: var(--primary);
}

/* Mise à jour des styles pour la page d'exercice de code */

/* Header amélioré */
.app-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 0;
    margin-bottom: 20px;
    border-bottom: 1px solid var(--border-color);
}

.header-left {
    display: flex;
    flex-direction: column;
}

.header-right {
    display: flex;
    align-items: center;
    gap: 15px;
}

.breadcrumbs {
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-top: 5px;
}

.breadcrumbs a {
    color: var(--primary-color);
    text-decoration: none;
}

.breadcrumbs a:hover {
    text-decoration: underline;
}

.icon-btn {
    background: none;
    border: none;
    color: var(--text-secondary);
    font-size: 1rem;
    cursor: pointer;
    padding: 8px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s ease;
}

.icon-btn:hover {
    background-color: rgba(255, 255, 255, 0.1);
    color: var(--text-primary);
}

/* Stats d'exercice */
.exercise-stats {
    display: flex;
    margin: 15px 0;
    gap: 20px;
    padding: 10px 0;
    border-top: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
}

.stat-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    color: var(--text-secondary);
}

.stat-value {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--primary-color);
    margin: 5px 0;
}

.stat-label {
    font-size: 0.8rem;
}

/* Améliorations de l'éditeur */
.editor-footer {
    padding: 15px;
    display: flex;
    justify-content: space-between;
    border-top: 1px solid var(--border-color);
}

.editor-hints {
    display: flex;
    gap: 15px;
}

.hint-item {
    font-size: 0.8rem;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    gap: 5px;
}

.editor-actions {
    display: flex;
    gap: 10px;
}

.icon-text-btn {
    background: none;
    border: none;
    color: var(--text-secondary);
    font-size: 0.85rem;
    cursor: pointer;
    padding: 5px 10px;
    border-radius: var(--border-radius);
    display: flex;
    align-items: center;
    gap: 5px;
    transition: all 0.2s ease;
}

.icon-text-btn:hover {
    background-color: rgba(255, 255, 255, 0.1);
    color: var(--text-primary);
}

.console-controls {
    display: flex;
    gap: 10px;
}

/* Styles pour les boutons */
.primary-btn {
    background-color: var(--primary-color);
    color: white;
    border: none;
    padding: 8px 16px;
    border-radius: var(--border-radius);
    font-weight: 500;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 8px;
    transition: all 0.2s ease;
}

.primary-btn:hover {
    background-color: var(--primary-color-dark);
    transform: translateY(-2px);
}

.secondary-btn {
    background-color: var(--section-bg);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
    padding: 8px 16px;
    border-radius: var(--border-radius);
    font-weight: 500;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 8px;
    transition: all 0.2s ease;
}

.secondary-btn:hover {
    background-color: var(--primary-color-light);
    color: var(--primary-color);
    transform: translateY(-2px);
}

/* Navigation entre exercices */
.exercise-navigation {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 20px;
    padding-top: 20px;
    border-top: 1px solid var(--border-color);
}

.exercise-progress {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 5px;
    flex: 1;
    max-width: 400px;
}

.progress-text {
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.progress-bar-container {
    width: 100%;
    height: 8px;
    background-color: var(--surface-color);
    border-radius: 4px;
    overflow: hidden;
}

.progress-bar {
    height: 100%;
    background-color: var(--primary-color);
    transition: width 0.3s ease;
}

/* Footer amélioré */
footer {
    text-align: center;
    padding: 20px 0;
    margin-top: 30px;
    border-top: 1px solid var(--border-color);
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.footer-links {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin-top: 10px;
}

.footer-link {
    color: var(--text-secondary);
    text-decoration: none;
    transition: color 0.2s ease;
}

.footer-link:hover {
    color: var(--primary-color);
    text-decoration: underline;
}

/* Responsive pour les nouvelles fonctionnalités */
@media (max-width: 768px) {
    .app-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 15px;
    }
    
    .header-right {
        width: 100%;
        justify-content: space-between;
    }
    
    .editor-footer {
        flex-direction: column;
        gap: 15px;
    }
    
    .editor-hints {
        flex-direction: column;
        gap: 10px;
    }
    
    .editor-actions {
        flex-direction: column;
    }
    
    .editor-actions button {
        width: 100%;
    }
    
    .exercise-navigation {
        flex-direction: column;
        gap: 15px;
    }
    
    .exercise-progress {
        order: 1;
        width: 100%;
        max-width: 100%;
    }
    
    .nav-btn {
        width: 100%;
        justify-content: center;
    }
    
    .footer-links {
        flex-direction: column;
        gap: 10px;
    }
}

/* Effet visuel quand une ligne est ajoutée à la console */
@keyframes consoleFadeIn {
    from {
        opacity: 0;
        transform: translateY(-5px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.console-line-new {
    animation: consoleFadeIn 0.3s ease;
}