/* Quiz App v0.3 - Design Moderne inspiré de Symplissime AI */

:root {
    /* Palette moderne */
    --primary: #667eea;
    --primary-dark: #5a67d8;
    --secondary: #764ba2;
    --success: #10b981;
    --warning: #f59e0b;
    --danger: #ef4444;
    --info: #3b82f6;
    
    /* Couleurs neutres */
    --gray-50: #fafafa;
    --gray-100: #f9fafb;
    --gray-200: #f3f4f6;
    --gray-300: #e5e7eb;
    --gray-400: #9ca3af;
    --gray-500: #6b7280;
    --gray-600: #4b5563;
    --gray-700: #374151;
    --gray-800: #1f2937;
    --gray-900: #111827;
    
    /* Texte */
    --text-primary: #111827;
    --text-secondary: #4b5563;
    --text-muted: #6b7280;
    
    /* Ombres */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
    
    /* Rayons de bordure */
    --radius-sm: 4px;
    --radius: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
    --radius-full: 9999px;
    
    /* Transitions */
    --transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background-color: var(--gray-50);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

/* Layout principal */
.app-layout {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* Header moderne */
.modern-header {
    background: linear-gradient(135deg, rgba(255,255,255,0.95) 0%, rgba(255,255,255,0.9) 100%);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--gray-200);
    padding: 12px 24px;
    position: sticky;
    top: 0;
    z-index: 50;
    box-shadow: var(--shadow-sm);
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
}

.logo-section {
    display: flex;
    align-items: center;
    gap: 16px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
    color: var(--text-primary);
}

.logo-icon {
    width: 32px;
    height: 32px;
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: 700;
    font-size: 14px;
    box-shadow: var(--shadow);
}

.logo-text {
    font-size: 20px;
    font-weight: 700;
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.workspace-badge {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    background: var(--gray-100);
    border-radius: var(--radius-full);
    font-size: 14px;
    color: var(--text-secondary);
    border: 1px solid var(--gray-200);
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 16px;
}

.status-badge {
    padding: 6px 12px;
    border-radius: var(--radius-full);
    font-size: 14px;
    font-weight: 600;
    background: #dcfce7;
    color: #166534;
    border: 1px solid #86efac;
}

/* Container principal */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 32px 24px;
    flex: 1;
}

.container.narrow {
    max-width: 600px;
}

/* Cards modernes */
.modern-card {
    background: white;
    border-radius: var(--radius-xl);
    border: 1px solid var(--gray-200);
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    overflow: hidden;
}

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

.card-header {
    padding: 24px 24px 0;
}

.card-body {
    padding: 24px;
}

.card-footer {
    padding: 0 24px 24px;
    border-top: 1px solid var(--gray-200);
    margin-top: 24px;
    padding-top: 24px;
}

/* Sidebar moderne */
.sidebar-layout {
    display: flex;
    min-height: calc(100vh - 76px);
    gap: 24px;
}

.modern-sidebar {
    width: 280px;
    background: white;
    border-radius: var(--radius-xl);
    border: 1px solid var(--gray-200);
    padding: 24px;
    height: fit-content;
    position: sticky;
    top: 100px;
}

.nav-section {
    margin-bottom: 32px;
}

.nav-title {
    font-size: 12px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-muted);
    margin-bottom: 16px;
}

.nav-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    margin: 4px 0;
    border-radius: var(--radius);
    color: var(--text-secondary);
    text-decoration: none;
    transition: var(--transition);
    font-weight: 500;
}

.nav-item:hover {
    background: var(--gray-100);
    color: var(--text-primary);
    transform: translateX(4px);
}

.nav-item.active {
    background: linear-gradient(135deg, #ede9fe 0%, #f3f4f6 100%);
    color: var(--primary);
    font-weight: 600;
}

.nav-icon {
    width: 20px;
    height: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 16px;
}

/* Main content */
.main-content {
    flex: 1;
    min-width: 0;
}

.page-header {
    margin-bottom: 32px;
}

.page-title {
    font-size: 32px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 8px;
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.page-subtitle {
    color: var(--text-muted);
    font-size: 16px;
    margin-bottom: 24px;
}

/* Boutons modernes */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 24px;
    font-size: 14px;
    font-weight: 600;
    text-decoration: none;
    border: none;
    border-radius: var(--radius);
    cursor: pointer;
    transition: var(--transition);
    outline: none;
    position: relative;
    overflow: hidden;
}

.btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
    transition: left 0.5s;
}

.btn:hover::before {
    left: 100%;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: white;
    box-shadow: var(--shadow);
}

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

.btn-success {
    background: linear-gradient(135deg, var(--success) 0%, #059669 100%);
    color: white;
    box-shadow: var(--shadow);
}

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

.btn-secondary {
    background: var(--gray-600);
    color: white;
}

.btn-secondary:hover {
    background: var(--gray-700);
    transform: translateY(-1px);
}

.btn-danger {
    background: linear-gradient(135deg, var(--danger) 0%, #dc2626 100%);
    color: white;
}

.btn-danger:hover {
    transform: translateY(-1px);
    box-shadow: var(--shadow-lg);
}

.btn-warning {
    background: linear-gradient(135deg, var(--warning) 0%, #d97706 100%);
    color: white;
}

.btn-info {
    background: linear-gradient(135deg, var(--info) 0%, #2563eb 100%);
    color: white;
}

.btn.small {
    padding: 8px 16px;
    font-size: 12px;
}

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

.btn.outline:hover {
    background: currentColor;
    color: white;
}

/* Stats Grid */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 24px;
    margin: 32px 0;
}

.stat-card {
    background: white;
    border-radius: var(--radius-xl);
    padding: 32px 24px;
    text-align: center;
    border: 1px solid var(--gray-200);
    position: relative;
    overflow: hidden;
    transition: var(--transition);
}

.stat-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
}

.stat-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
}

.stat-number {
    font-size: 48px;
    font-weight: 800;
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 8px;
}

.stat-label {
    color: var(--text-muted);
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    font-size: 14px;
}

/* Formulaires modernes */
.modern-form {
    background: white;
    border-radius: var(--radius-xl);
    border: 1px solid var(--gray-200);
    overflow: hidden;
}

.form-section {
    padding: 32px;
    border-bottom: 1px solid var(--gray-200);
}

.form-section:last-child {
    border-bottom: none;
}

.form-section-title {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 24px;
    color: var(--text-primary);
}

.form-group {
    margin-bottom: 24px;
}

.form-label {
    display: block;
    font-size: 14px;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: 8px;
}

.form-input, .form-textarea, .form-select {
    width: 100%;
    padding: 12px 16px;
    font-size: 16px;
    border: 2px solid var(--gray-200);
    border-radius: var(--radius);
    transition: var(--transition);
    background: white;
}

.form-input:focus, .form-textarea:focus, .form-select:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

.form-textarea {
    min-height: 120px;
    resize: vertical;
}

.form-checkbox {
    display: flex;
    align-items: center;
    gap: 12px;
    cursor: pointer;
}

.form-checkbox input {
    width: 20px;
    height: 20px;
    accent-color: var(--primary);
}

/* Quiz spécifique */
.quiz-intro {
    text-align: center;
    padding: 48px 32px;
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    color: white;
    border-radius: var(--radius-xl);
    margin-bottom: 32px;
}

.quiz-intro h1 {
    font-size: 36px;
    font-weight: 800;
    margin-bottom: 16px;
}

.participant-form {
    max-width: 400px;
    margin: 32px auto 0;
}

.question-card {
    background: white;
    border-radius: var(--radius-xl);
    border: 1px solid var(--gray-200);
    overflow: hidden;
    margin-bottom: 32px;
}

.question-header {
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    color: white;
    padding: 20px 32px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 16px;
}

.question-meta {
    display: flex;
    gap: 16px;
    align-items: center;
}

.question-badge {
    background: rgba(255, 255, 255, 0.2);
    padding: 6px 12px;
    border-radius: var(--radius-full);
    font-size: 14px;
    font-weight: 600;
}

.question-content {
    padding: 32px;
}

.question-text {
    font-size: 24px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 32px;
    line-height: 1.4;
}

.answers-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 16px;
}

.answer-option {
    background: var(--gray-50);
    border: 2px solid var(--gray-200);
    border-radius: var(--radius-lg);
    padding: 20px;
    cursor: pointer;
    transition: var(--transition);
    text-align: left;
    font-weight: 500;
}

.answer-option:hover {
    border-color: var(--primary);
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.05) 0%, rgba(118, 75, 162, 0.05) 100%);
    transform: translateY(-2px);
}

.answer-option.selected {
    background: linear-gradient(135deg, #dcfce7 0%, #f0fdf4 100%);
    border-color: var(--success);
}

.progress-container {
    padding: 0 32px 32px;
}

.progress-bar {
    height: 8px;
    background: var(--gray-200);
    border-radius: var(--radius-full);
    overflow: hidden;
}

.progress-fill {
    height: 100%;
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    transition: width 0.5s ease;
    border-radius: var(--radius-full);
}

/* Résultats */
.results-card {
    background: white;
    border-radius: var(--radius-xl);
    border: 1px solid var(--gray-200);
    overflow: hidden;
    text-align: center;
    margin-bottom: 32px;
}

.results-header {
    background: linear-gradient(135deg, var(--success) 0%, #059669 100%);
    color: white;
    padding: 48px 32px;
}

.results-title {
    font-size: 32px;
    font-weight: 800;
    margin-bottom: 16px;
}

.score-display {
    display: flex;
    justify-content: center;
    gap: 48px;
    margin: 32px 0;
    flex-wrap: wrap;
}

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

.score-number {
    font-size: 48px;
    font-weight: 800;
    margin-bottom: 8px;
}

.score-label {
    font-size: 14px;
    opacity: 0.9;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

/* Tables modernes */
.modern-table-container {
    background: white;
    border-radius: var(--radius-xl);
    border: 1px solid var(--gray-200);
    overflow: hidden;
}

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

.modern-table th {
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    color: white;
    padding: 20px;
    text-align: left;
    font-weight: 600;
    font-size: 14px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.modern-table td {
    padding: 16px 20px;
    border-bottom: 1px solid var(--gray-200);
}

.modern-table tbody tr:hover {
    background: var(--gray-50);
}

.modern-table tbody tr:last-child td {
    border-bottom: none;
}

/* Badges et statuts */
.status-badge {
    padding: 6px 12px;
    border-radius: var(--radius-full);
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.status-draft { background: #fef3c7; color: #92400e; }
.status-active { background: #dcfce7; color: #166534; }
.status-closed { background: #fee2e2; color: #991b1b; }

/* Alerts */
.alert {
    padding: 16px 20px;
    border-radius: var(--radius-lg);
    margin: 16px 0;
    border-left: 4px solid currentColor;
}

.alert.success {
    background: #f0fdf4;
    color: #166534;
    border-color: var(--success);
}

.alert.error {
    background: #fef2f2;
    color: #991b1b;
    border-color: var(--danger);
}

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

@keyframes slideInRight {
    from { opacity: 0; transform: translateX(30px); }
    to { opacity: 1; transform: translateX(0); }
}

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

.animate-fade-in { animation: fadeIn 0.5s ease-out; }
.animate-slide-in { animation: slideInRight 0.5s ease-out; }
.animate-pulse { animation: pulse 2s infinite; }

/* Loading spinner */
.spinner {
    width: 40px;
    height: 40px;
    border: 4px solid var(--gray-200);
    border-top-color: var(--primary);
    border-radius: 50%;
    margin: 20px auto;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* Responsive */
@media (max-width: 768px) {
    .sidebar-layout {
        flex-direction: column;
    }
    
    .modern-sidebar {
        width: 100%;
        position: static;
    }
    
    .stats-grid {
        grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
        gap: 16px;
    }
    
    .answers-grid {
        grid-template-columns: 1fr;
    }
    
    .score-display {
        gap: 24px;
    }
    
    .container {
        padding: 16px;
    }
}