/* ==========================================
   GAMEDEV ACADEMY - IMPROVED STYLES v2.1
   ========================================== */

/* Variables CSS */
:root {
    /* Couleurs principales */
    --primary: #6366f1;
    --primary-dark: #4f46e5;
    --primary-light: #818cf8;
    --secondary: #8b5cf6;
    --success: #10b981;
    --warning: #f59e0b;
    --error: #ef4444;
    --info: #3b82f6;
    
    /* Couleurs de fond */
    --bg-primary: #ffffff;
    --bg-secondary: #f9fafb;
    --bg-tertiary: #f3f4f6;
    
    /* Couleurs de texte */
    --text-primary: #111827;
    --text-secondary: #6b7280;
    --text-tertiary: #9ca3af;
    
    /* Bordures */
    --border-color: #e5e7eb;
    --border-radius: 12px;
    --border-radius-sm: 8px;
    --border-radius-lg: 16px;
    
    /* Ombres */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px rgba(0, 0, 0, 0.15);
    
    /* Transitions */
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-fast: all 0.15s cubic-bezier(0.4, 0, 0.2, 1);
    
    /* Espacements */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    
    /* Z-index scale */
    --z-dropdown: 1000;
    --z-sticky: 1020;
    --z-fixed: 1030;
    --z-modal: 1040;
    --z-toast: 9999;
}

/* Mode Sombre */
body.dark-mode {
    --bg-primary: #111827;
    --bg-secondary: #1f2937;
    --bg-tertiary: #374151;
    
    --text-primary: #f9fafb;
    --text-secondary: #d1d5db;
    --text-tertiary: #9ca3af;
    
    --border-color: #374151;
    
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.3);
    --shadow-xl: 0 20px 25px rgba(0, 0, 0, 0.4);
}

/* Reset de base */
*,
*::before,
*::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background-color: var(--bg-secondary);
    color: var(--text-primary);
    line-height: 1.6;
    transition: background-color 0.3s ease, color 0.3s ease;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

/* ==========================================
   HEADER
   ========================================== */

.header {
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    color: white;
    padding: var(--spacing-xl) 0;
    box-shadow: var(--shadow-lg);
    position: relative;
    overflow: hidden;
}

/* Effet de fond subtil */
.header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 30% 50%, rgba(255, 255, 255, 0.1) 0%, transparent 50%);
    pointer-events: none;
}

.header h1 {
    font-size: clamp(1.75rem, 4vw, 2.5rem);
    margin-bottom: var(--spacing-sm);
    font-weight: 700;
    position: relative;
}

.header > .container > p {
    font-size: clamp(1rem, 2vw, 1.1rem);
    opacity: 0.9;
    margin-bottom: var(--spacing-lg);
    position: relative;
}

.progress-indicators {
    display: flex;
    gap: var(--spacing-xl);
    margin-top: var(--spacing-lg);
    position: relative;
}

.progress-item {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.progress-label {
    font-size: 0.875rem;
    opacity: 0.8;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.progress-value {
    font-size: 1.5rem;
    font-weight: bold;
}

.header-actions {
    position: absolute;
    top: var(--spacing-md);
    right: var(--spacing-lg);
    display: flex;
    gap: var(--spacing-sm);
    z-index: 10;
}

.btn-icon {
    background: rgba(255, 255, 255, 0.2);
    border: none;
    border-radius: var(--border-radius-sm);
    padding: var(--spacing-sm) 0.75rem;
    font-size: 1.25rem;
    cursor: pointer;
    transition: var(--transition-fast);
    backdrop-filter: blur(10px);
}

.btn-icon:hover {
    background: rgba(255, 255, 255, 0.3);
    transform: scale(1.05);
}

.btn-icon:active {
    transform: scale(0.95);
}

/* ==========================================
   NAVIGATION
   ========================================== */

.nav {
    background: var(--bg-primary);
    border-bottom: 2px solid var(--border-color);
    box-shadow: var(--shadow-sm);
    position: sticky;
    top: 0;
    z-index: var(--z-sticky);
    backdrop-filter: blur(10px);
}

.nav .container {
    display: flex;
    gap: var(--spacing-sm);
    padding: 0.75rem var(--spacing-lg);
    overflow-x: auto;
    scrollbar-width: none;
}

.nav .container::-webkit-scrollbar {
    display: none;
}

.nav-link {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: 0.75rem var(--spacing-lg);
    background: transparent;
    color: var(--text-secondary);
    text-decoration: none;
    border-radius: var(--border-radius-sm);
    font-weight: 500;
    transition: var(--transition-fast);
    white-space: nowrap;
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--primary);
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

.nav-link:hover {
    background: var(--bg-tertiary);
    color: var(--text-primary);
}

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

.nav-link.active::after {
    transform: scaleX(1);
}

.nav-icon {
    font-size: 1.25rem;
}

/* ==========================================
   MAIN CONTENT
   ========================================== */

.main {
    padding: var(--spacing-xl) 0;
    min-height: calc(100vh - 400px);
}

.content-section {
    display: none;
}

.content-section.active {
    display: block;
    animation: fadeIn 0.3s ease;
}

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

.content-section h2 {
    font-size: clamp(1.5rem, 3vw, 2rem);
    margin-bottom: var(--spacing-sm);
    color: var(--text-primary);
    font-weight: 700;
}

.section-description {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-xl);
    font-size: 1.1rem;
    line-height: 1.8;
}

/* ==========================================
   CARDS GRID
   ========================================== */

.cards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: var(--spacing-lg);
    margin-top: var(--spacing-xl);
}

.card {
    background: var(--bg-primary);
    border: 2px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: var(--spacing-lg);
    cursor: pointer;
    transition: var(--transition);
    box-shadow: var(--shadow-sm);
    position: relative;
    overflow: hidden;
}

.card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, var(--primary), var(--secondary));
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.3s ease;
}

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

.card:hover::before {
    transform: scaleX(1);
}

.card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 0.75rem;
}

.card h3 {
    font-size: 1.25rem;
    color: var(--text-primary);
    font-weight: 600;
}

.card p {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-md);
    line-height: 1.6;
}

.card-footer {
    display: flex;
    justify-content: flex-end;
}

.completion-badge {
    font-size: 1.5rem;
    color: var(--text-tertiary);
    transition: var(--transition-fast);
}

.completion-badge.viewed {
    color: var(--success);
    animation: popIn 0.3s cubic-bezier(0.68, -0.55, 0.265, 1.55);
}

@keyframes popIn {
    0% { 
        transform: scale(0);
        opacity: 0;
    }
    50% { 
        transform: scale(1.2);
    }
    100% { 
        transform: scale(1);
        opacity: 1;
    }
}

/* ==========================================
   BADGES
   ========================================== */

.badge {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    border-radius: 999px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    transition: var(--transition-fast);
}

.badge-beginner {
    background: #dbeafe;
    color: #1e40af;
}

.badge-intermediate {
    background: #fef3c7;
    color: #92400e;
}

.badge-advanced {
    background: #fee2e2;
    color: #991b1b;
}

body.dark-mode .badge-beginner {
    background: #1e3a8a;
    color: #bfdbfe;
}

body.dark-mode .badge-intermediate {
    background: #78350f;
    color: #fef3c7;
}

body.dark-mode .badge-advanced {
    background: #7f1d1d;
    color: #fecaca;
}

/* ==========================================
   EXERCICES
   ========================================== */

.exercise-selector {
    display: flex;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-xl);
    padding: var(--spacing-md);
    background: var(--bg-primary);
    border-radius: var(--border-radius);
    border: 2px solid var(--border-color);
    overflow-x: auto;
}

.btn-selector {
    flex: 1;
    min-width: 120px;
    padding: 0.75rem var(--spacing-lg);
    background: transparent;
    border: 2px solid var(--border-color);
    border-radius: var(--border-radius-sm);
    color: var(--text-secondary);
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition-fast);
    white-space: nowrap;
}

.btn-selector:hover {
    background: var(--bg-tertiary);
    border-color: var(--primary);
    transform: translateY(-2px);
}

.btn-selector.active {
    background: var(--primary);
    border-color: var(--primary);
    color: white;
    box-shadow: 0 4px 12px rgba(99, 102, 241, 0.3);
}

.exercises-list {
    display: grid;
    gap: var(--spacing-md);
}

.exercises-list.hidden {
    display: none;
}

.exercise-item {
    background: var(--bg-primary);
    border: 2px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: var(--spacing-lg);
    cursor: pointer;
    transition: var(--transition);
    position: relative;
}

.exercise-item::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 4px;
    background: var(--primary);
    transform: scaleY(0);
    transition: transform 0.3s ease;
}

.exercise-item:hover {
    border-color: var(--primary);
    box-shadow: var(--shadow-md);
    transform: translateX(4px);
}

.exercise-item:hover::before {
    transform: scaleY(1);
}

.exercise-item.completed {
    border-color: var(--success);
    background: linear-gradient(to right, rgba(16, 185, 129, 0.05), transparent);
}

.exercise-item.completed::before {
    background: var(--success);
    transform: scaleY(1);
}

.exercise-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-sm);
}

.exercise-title {
    font-weight: 600;
    color: var(--text-primary);
    font-size: 1.1rem;
}

.exercise-meta {
    display: flex;
    gap: var(--spacing-md);
    margin-top: var(--spacing-sm);
    flex-wrap: wrap;
}

.meta-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    color: var(--text-secondary);
    font-size: 0.875rem;
}

/* ==========================================
   MODAL
   ========================================== */

.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: var(--z-modal);
    align-items: center;
    justify-content: center;
    padding: var(--spacing-md);
    backdrop-filter: blur(4px);
}

.modal.active {
    display: flex;
    animation: fadeIn 0.3s ease;
}

.modal-content {
    background: var(--bg-primary);
    border-radius: var(--border-radius-lg);
    width: 90%;
    max-width: 1000px;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: var(--shadow-xl);
    animation: slideUp 0.3s cubic-bezier(0.68, -0.55, 0.265, 1.55);
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(50px) scale(0.95);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

.modal-header {
    padding: var(--spacing-xl);
    border-bottom: 2px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: sticky;
    top: 0;
    background: var(--bg-primary);
    z-index: 10;
}

.modal-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
}

.close-modal {
    background: transparent;
    border: none;
    font-size: 2rem;
    color: var(--text-secondary);
    cursor: pointer;
    transition: var(--transition-fast);
    padding: var(--spacing-sm);
    line-height: 1;
    border-radius: var(--border-radius-sm);
}

.close-modal:hover {
    background: var(--bg-tertiary);
    color: var(--text-primary);
    transform: rotate(90deg);
}

.modal-body {
    padding: var(--spacing-xl);
}

.exercise-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xl);
}

.exercise-instructions {
    padding-right: var(--spacing-md);
}

.exercise-instructions h3 {
    color: var(--text-primary);
    margin-bottom: var(--spacing-md);
    font-size: 1.25rem;
}

.exercise-instructions p {
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: var(--spacing-md);
}

.hints-box {
    background: var(--bg-secondary);
    padding: var(--spacing-md);
    border-radius: var(--border-radius-sm);
    margin-top: var(--spacing-md);
    border-left: 4px solid var(--info);
}

.hints-box h4 {
    color: var(--info);
    margin-bottom: var(--spacing-sm);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.hints-box ul {
    padding-left: var(--spacing-lg);
    margin-top: var(--spacing-sm);
}

.hints-box li {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-xs);
}

.code-editor {
    position: sticky;
    top: var(--spacing-xl);
}

.editor-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 0.75rem;
}

.editor-header h4 {
    color: var(--text-primary);
    font-size: 1rem;
}

.code-textarea {
    width: 100%;
    min-height: 300px;
    padding: var(--spacing-md);
    font-family: 'Consolas', 'Monaco', 'Courier New', monospace;
    font-size: 0.9rem;
    line-height: 1.6;
    border: 2px solid var(--border-color);
    border-radius: var(--border-radius-sm);
    background: var(--bg-secondary);
    color: var(--text-primary);
    resize: vertical;
    transition: var(--transition-fast);
}

.code-textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

.exercise-actions {
    display: flex;
    gap: 0.75rem;
    margin-top: var(--spacing-md);
}

/* ==========================================
   BUTTONS
   ========================================== */

.btn {
    padding: 0.75rem var(--spacing-lg);
    border: none;
    border-radius: var(--border-radius-sm);
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition-fast);
    flex: 1;
    font-size: 0.9rem;
    text-align: center;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
}

.btn:active {
    transform: scale(0.98);
}

.btn-primary {
    background: var(--success);
    color: white;
}

.btn-primary:hover {
    background: #059669;
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

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

.btn-secondary:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn-outline {
    background: transparent;
    border: 2px solid var(--border-color);
    color: var(--text-primary);
}

.btn-outline:hover {
    background: var(--bg-tertiary);
    border-color: var(--text-secondary);
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none !important;
}

/* ==========================================
   FEEDBACK
   ========================================== */

.feedback {
    display: none;
    margin-top: var(--spacing-lg);
    padding: var(--spacing-lg);
    border-radius: var(--border-radius);
    border-left: 4px solid;
}

.feedback.active {
    display: block;
    animation: slideDown 0.3s ease;
}

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

.feedback.success {
    background: #d1fae5;
    border-color: var(--success);
    color: #065f46;
}

.feedback.error {
    background: #fee2e2;
    border-color: var(--error);
    color: #991b1b;
}

body.dark-mode .feedback.success {
    background: #064e3b;
    color: #d1fae5;
}

body.dark-mode .feedback.error {
    background: #7f1d1d;
    color: #fecaca;
}

.feedback h4 {
    margin-bottom: var(--spacing-sm);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.feedback ul {
    padding-left: var(--spacing-lg);
    margin-top: var(--spacing-sm);
}

.feedback li {
    margin-bottom: var(--spacing-xs);
}

.feedback code {
    background: rgba(0, 0, 0, 0.1);
    padding: 0.2rem 0.4rem;
    border-radius: 4px;
    font-family: monospace;
    font-size: 0.9em;
}

/* ==========================================
   CORRECTION
   ========================================== */

.correction-section {
    display: none;
    margin-top: var(--spacing-xl);
    padding-top: var(--spacing-xl);
    border-top: 2px solid var(--border-color);
}

.correction-section.active {
    display: block;
    animation: fadeIn 0.5s ease;
}

.solution-explanation {
    margin-top: var(--spacing-md);
    padding: var(--spacing-md);
    background: var(--bg-secondary);
    border-radius: var(--border-radius-sm);
    border-left: 4px solid var(--success);
}

.solution-explanation h4 {
    color: var(--success);
    margin-bottom: var(--spacing-sm);
}

/* ==========================================
   NOTIFICATIONS TOAST
   ========================================== */

.toast-container {
    position: fixed;
    top: var(--spacing-md);
    right: var(--spacing-md);
    z-index: var(--z-toast);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    pointer-events: none;
}

.toast {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: var(--spacing-md) var(--spacing-lg);
    background: white;
    border-radius: var(--border-radius-sm);
    box-shadow: var(--shadow-lg);
    min-width: 300px;
    opacity: 0;
    transform: translateX(400px);
    transition: var(--transition);
    pointer-events: all;
}

.toast.show {
    opacity: 1;
    transform: translateX(0);
}

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

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

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

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

.toast-icon {
    font-size: 1.5rem;
    flex-shrink: 0;
}

.toast-message {
    color: var(--text-primary);
    font-weight: 500;
    flex: 1;
}

body.dark-mode .toast {
    background: var(--bg-tertiary);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.5);
}

/* ==========================================
   FOOTER
   ========================================== */

.footer {
    background: var(--bg-primary);
    border-top: 2px solid var(--border-color);
    padding: var(--spacing-xl) 0;
    margin-top: 4rem;
    text-align: center;
    color: var(--text-secondary);
}

.footer p {
    margin: 0.25rem 0;
    font-size: 0.9rem;
}

/* ==========================================
   RESPONSIVE
   ========================================== */

@media (max-width: 768px) {
    :root {
        --spacing-lg: 1rem;
        --spacing-xl: 1.5rem;
    }
    
    .header h1 {
        font-size: 1.75rem;
    }
    
    .progress-indicators {
        flex-direction: column;
        gap: var(--spacing-md);
    }
    
    .header-actions {
        position: static;
        margin-top: var(--spacing-md);
    }
    
    .nav .container {
        flex-wrap: wrap;
    }
    
    .nav-link {
        flex: 1;
        min-width: 120px;
        justify-content: center;
    }
    
    .cards-grid {
        grid-template-columns: 1fr;
    }
    
    .exercise-selector {
        flex-direction: column;
    }
    
    .exercise-content {
        grid-template-columns: 1fr;
    }
    
    .code-editor {
        position: static;
    }
    
    .modal-content {
        width: 95%;
        max-height: 95vh;
    }
    
    .modal-header,
    .modal-body {
        padding: var(--spacing-md);
    }
    
    .exercise-actions {
        flex-direction: column;
    }
    
    .btn {
        width: 100%;
    }
    
    .toast-container {
        left: var(--spacing-md);
        right: var(--spacing-md);
    }
    
    .toast {
        min-width: auto;
    }
}

/* ==========================================
   PRISM.JS CUSTOMIZATION
   ========================================== */

pre[class*="language-"] {
    font-size: 0.9rem;
    line-height: 1.6;
    border-radius: var(--border-radius-sm);
    margin: var(--spacing-md) 0;
}

code[class*="language-"] {
    font-family: 'Consolas', 'Monaco', 'Courier New', monospace;
}

/* Mode sombre pour Prism */
body.dark-mode pre[class*="language-"] {
    background: #1e1e1e !important;
}

/* ==========================================
   UTILITAIRES
   ========================================== */

.hidden {
    display: none !important;
}

.text-center {
    text-align: center;
}

.text-right {
    text-align: right;
}

.text-left {
    text-align: left;
}

.mt-1 { margin-top: var(--spacing-xs); }
.mt-2 { margin-top: var(--spacing-sm); }
.mt-3 { margin-top: var(--spacing-md); }
.mt-4 { margin-top: var(--spacing-lg); }

.mb-1 { margin-bottom: var(--spacing-xs); }
.mb-2 { margin-bottom: var(--spacing-sm); }
.mb-3 { margin-bottom: var(--spacing-md); }
.mb-4 { margin-bottom: var(--spacing-lg); }

.p-1 { padding: var(--spacing-xs); }
.p-2 { padding: var(--spacing-sm); }
.p-3 { padding: var(--spacing-md); }
.p-4 { padding: var(--spacing-lg); }

/* Scrollbar personnalisée */
::-webkit-scrollbar {
    width: 10px;
    height: 10px;
}

::-webkit-scrollbar-track {
    background: var(--bg-tertiary);
    border-radius: 5px;
}

::-webkit-scrollbar-thumb {
    background: var(--text-tertiary);
    border-radius: 5px;
    border: 2px solid var(--bg-tertiary);
}

::-webkit-scrollbar-thumb:hover {
    background: var(--text-secondary);
}

/* Pour Firefox */
* {
    scrollbar-width: thin;
    scrollbar-color: var(--text-tertiary) var(--bg-tertiary);
}

/* ==========================================
   ACCESSIBILITÉ
   ========================================== */

*:focus-visible {
    outline: 2px solid var(--primary);
    outline-offset: 2px;
    border-radius: var(--border-radius-sm);
}

/* Amélioration du focus pour les éléments interactifs */
button:focus-visible,
a:focus-visible,
input:focus-visible,
textarea:focus-visible,
select:focus-visible {
    outline: 2px solid var(--primary);
    outline-offset: 2px;
}

/* Skip to content link pour l'accessibilité */
.skip-to-content {
    position: absolute;
    top: -40px;
    left: 0;
    background: var(--primary);
    color: white;
    padding: var(--spacing-sm) var(--spacing-md);
    text-decoration: none;
    z-index: var(--z-toast);
    transition: top 0.3s ease;
}

.skip-to-content:focus {
    top: 0;
}

/* Réduction des animations pour accessibilité */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
}

/* Mode contraste élevé */
@media (prefers-contrast: high) {
    :root {
        --border-color: #000000;
        --text-secondary: #000000;
    }
    
    body.dark-mode {
        --border-color: #ffffff;
        --text-secondary: #ffffff;
    }
}

/* ==========================================
   PRINT STYLES
   ========================================== */

@media print {
    .header-actions,
    .nav,
    .exercise-actions,
    .toast-container,
    .modal,
    .btn {
        display: none !important;
    }
    
    body {
        background: white;
        color: black;
    }
    
    .card,
    .modal-content {
        box-shadow: none;
        border: 1px solid #000;
    }
}