/**
 * Styles pour l'application Quiz Technicien Réseau
 */

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #f5f5f5;
}

/* Container */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
}

.container-narrow {
    max-width: 800px;
    margin: 0 auto;
    padding: 20px;
}

/* Header */
.header {
    background-color: #2c3e50;
    color: white;
    padding: 20px 0;
    margin-bottom: 30px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.header h1 {
    font-size: 28px;
    font-weight: 600;
}

.header .subtitle {
    font-size: 14px;
    opacity: 0.8;
    margin-top: 5px;
}

/* Navigation */
.nav {
    background-color: #34495e;
    padding: 0;
    margin-bottom: 30px;
}

.nav ul {
    list-style: none;
    display: flex;
    flex-wrap: wrap;
}

.nav li {
    margin: 0;
}

.nav a {
    display: block;
    padding: 15px 20px;
    color: white;
    text-decoration: none;
    transition: background-color 0.3s;
}

.nav a:hover,
.nav a.active {
    background-color: #2c3e50;
}

/* Cards */
.card {
    background: white;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    padding: 25px;
    margin-bottom: 20px;
}

.card-header {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 20px;
    padding-bottom: 10px;
    border-bottom: 2px solid #e0e0e0;
}

/* Forms */
.form-group {
    margin-bottom: 20px;
}

.form-label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: #555;
}

.form-control {
    width: 100%;
    padding: 12px;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-size: 15px;
    transition: border-color 0.3s;
}

.form-control:focus {
    outline: none;
    border-color: #3498db;
    box-shadow: 0 0 0 3px rgba(52, 152, 219, 0.1);
}

textarea.form-control {
    min-height: 120px;
    resize: vertical;
    font-family: inherit;
}

select.form-control {
    cursor: pointer;
}

.form-text {
    display: block;
    margin-top: 5px;
    font-size: 13px;
    color: #777;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 12px 24px;
    border: none;
    border-radius: 4px;
    font-size: 15px;
    font-weight: 500;
    text-align: center;
    text-decoration: none;
    cursor: pointer;
    transition: all 0.3s;
}

.btn:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 8px rgba(0,0,0,0.15);
}

.btn-primary {
    background-color: #3498db;
    color: white;
}

.btn-primary:hover {
    background-color: #2980b9;
}

.btn-success {
    background-color: #27ae60;
    color: white;
}

.btn-success:hover {
    background-color: #229954;
}

.btn-danger {
    background-color: #e74c3c;
    color: white;
}

.btn-danger:hover {
    background-color: #c0392b;
}

.btn-warning {
    background-color: #f39c12;
    color: white;
}

.btn-warning:hover {
    background-color: #d68910;
}

.btn-secondary {
    background-color: #95a5a6;
    color: white;
}

.btn-secondary:hover {
    background-color: #7f8c8d;
}

.btn-sm {
    padding: 8px 16px;
    font-size: 13px;
}

.btn-block {
    display: block;
    width: 100%;
}

/* Badges */
.badge {
    display: inline-block;
    padding: 4px 10px;
    border-radius: 12px;
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
}

.badge-success {
    background-color: #d4edda;
    color: #155724;
}

.badge-warning {
    background-color: #fff3cd;
    color: #856404;
}

.badge-danger {
    background-color: #f8d7da;
    color: #721c24;
}

.badge-secondary {
    background-color: #e2e3e5;
    color: #383d41;
}

/* Alerts */
.alert {
    padding: 15px 20px;
    border-radius: 4px;
    margin-bottom: 20px;
}

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

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

.alert-warning {
    background-color: #fff3cd;
    color: #856404;
    border: 1px solid #ffeaa7;
}

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

/* Tables */
.table {
    width: 100%;
    border-collapse: collapse;
    background: white;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.table thead {
    background-color: #34495e;
    color: white;
}

.table th,
.table td {
    padding: 12px 15px;
    text-align: left;
}

.table tbody tr {
    border-bottom: 1px solid #e0e0e0;
}

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

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

/* Quiz specific */
.quiz-progress {
    background-color: #ecf0f1;
    height: 8px;
    border-radius: 4px;
    margin-bottom: 30px;
    overflow: hidden;
}

.quiz-progress-bar {
    background-color: #3498db;
    height: 100%;
    transition: width 0.3s;
}

.question-number {
    font-size: 14px;
    color: #7f8c8d;
    margin-bottom: 10px;
}

.question-text {
    font-size: 18px;
    font-weight: 500;
    margin-bottom: 25px;
    line-height: 1.6;
}

.question-text strong {
    color: #2c3e50;
}

.options-list {
    list-style: none;
}

.option-item {
    margin-bottom: 15px;
}

.option-label {
    display: flex;
    align-items: flex-start;
    padding: 15px;
    border: 2px solid #e0e0e0;
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.3s;
}

.option-label:hover {
    border-color: #3498db;
    background-color: #f8f9fa;
}

.option-label input[type="radio"] {
    margin-right: 12px;
    margin-top: 3px;
}

.option-label.selected {
    border-color: #3498db;
    background-color: #ebf5fb;
}

.option-label.correct {
    border-color: #27ae60;
    background-color: #d5f4e6;
}

.option-label.incorrect {
    border-color: #e74c3c;
    background-color: #fadbd8;
}

.explanation {
    margin-top: 10px;
    padding: 12px;
    background-color: #f8f9fa;
    border-left: 4px solid #3498db;
    font-size: 14px;
    color: #555;
}

.quiz-navigation {
    display: flex;
    justify-content: space-between;
    margin-top: 30px;
    gap: 10px;
}

.timer {
    position: fixed;
    top: 20px;
    right: 20px;
    background-color: white;
    padding: 15px 20px;
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.15);
    font-size: 18px;
    font-weight: 600;
    z-index: 1000;
}

.timer.warning {
    background-color: #fff3cd;
    color: #856404;
}

/* Stats */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
    margin-bottom: 30px;
}

.stat-card {
    background: white;
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    text-align: center;
}

.stat-value {
    font-size: 36px;
    font-weight: 700;
    color: #2c3e50;
}

.stat-label {
    font-size: 14px;
    color: #7f8c8d;
    margin-top: 5px;
}

/* Responsive */
@media (max-width: 768px) {
    .container,
    .container-narrow {
        padding: 15px;
    }
    
    .header h1 {
        font-size: 22px;
    }
    
    .nav ul {
        flex-direction: column;
    }
    
    .quiz-navigation {
        flex-direction: column;
    }
    
    .timer {
        position: static;
        margin-bottom: 20px;
    }
    
    .table {
        font-size: 14px;
    }
    
    .table th,
    .table td {
        padding: 8px 10px;
    }
}

/* Utility classes */
.text-center {
    text-align: center;
}

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

.mt-1 { margin-top: 10px; }
.mt-2 { margin-top: 20px; }
.mt-3 { margin-top: 30px; }
.mb-1 { margin-bottom: 10px; }
.mb-2 { margin-bottom: 20px; }
.mb-3 { margin-bottom: 30px; }

.d-flex {
    display: flex;
}

.justify-between {
    justify-content: space-between;
}

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

.gap-1 { gap: 10px; }
.gap-2 { gap: 20px; }