/* ============================================
   RESOURCES.CSS - Premium Educational Content
   Design ultra-professionnel avec formules mathématiques
   VERSION CORRIGÉE - Mobile & Desktop 100% fonctionnel
   ============================================ */

/* ============================================
   VARIABLES PREMIUM
   ============================================ */

:root {
    --gradient-primary: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --gradient-accent: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    --gradient-success: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
    --gradient-warning: linear-gradient(135deg, #fa709a 0%, #fee140 100%);
    --shadow-premium: 0 20px 60px rgba(102, 126, 234, 0.25);
    --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.1);
}

/* ============================================
   ANIMATIONS
   ============================================ */

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

@keyframes pulse-glow {
    0%, 100% { 
        box-shadow: 0 0 20px rgba(102, 126, 234, 0.3);
    }
    50% { 
        box-shadow: 0 0 40px rgba(102, 126, 234, 0.6);
    }
}

@keyframes gradient-shift {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}

@keyframes float {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-10px); }
}

/* ============================================
   LAYOUT PRINCIPAL
   ============================================ */

.resource-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 2rem 1rem 4rem;
}

/* ============================================
   BOUTON "BACK TO HELP" - CORRECTION
   ============================================ */

.btn-back-dashboard {
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.875rem 1.75rem;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    font-size: 0.9375rem;
    font-weight: 700;
    text-decoration: none;
    border-radius: 12px;
    box-shadow: 0 4px 16px rgba(102, 126, 234, 0.3);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    border: none;
    cursor: pointer;
}

.btn-back-dashboard:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 28px rgba(102, 126, 234, 0.5);
    background: linear-gradient(135deg, #764ba2 0%, #667eea 100%);
}

.btn-back-dashboard:active {
    transform: translateY(-1px);
    box-shadow: 0 4px 16px rgba(102, 126, 234, 0.4);
}

.btn-back-dashboard i {
    font-size: 1rem;
    transition: transform 0.3s ease;
}

.btn-back-dashboard:hover i {
    transform: translateX(-4px);
}

/* Version mobile du bouton */
@media (max-width: 768px) {
    .btn-back-dashboard {
        padding: 0.75rem 1.25rem;
        font-size: 0.875rem;
        gap: 0.5rem;
    }
    
    .btn-back-dashboard span {
        display: inline; /* Afficher le texte sur mobile aussi */
    }
}

@media (max-width: 480px) {
    .btn-back-dashboard {
        padding: 0.625rem 1rem;
        font-size: 0.8125rem;
    }
}

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

.resource-header {
    background: linear-gradient(135deg, 
        rgba(102, 126, 234, 0.1) 0%, 
        rgba(118, 75, 162, 0.1) 100%);
    border-radius: 28px;
    padding: 3rem 2.5rem;
    margin-bottom: 3rem;
    border: 2px solid rgba(102, 126, 234, 0.2);
    position: relative;
    overflow: hidden;
    animation: fadeInUp 0.6s ease;
}

body.dark-mode .resource-header {
    background: linear-gradient(135deg, 
        rgba(102, 126, 234, 0.15) 0%, 
        rgba(118, 75, 162, 0.15) 100%);
    border-color: rgba(255, 255, 255, 0.1);
}

.resource-header::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, 
        rgba(255, 255, 255, 0.1) 0%, 
        transparent 70%);
    animation: float 6s ease-in-out infinite;
}

.resource-breadcrumb {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.875rem;
    color: var(--text-secondary, #64748b);
    margin-bottom: 1.5rem;
    position: relative;
    z-index: 1;
}

body.dark-mode .resource-breadcrumb {
    color: var(--text-secondary, #94a3b8);
}

.resource-breadcrumb a {
    color: var(--primary-color, #667eea);
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s ease;
}

.resource-breadcrumb a:hover {
    text-decoration: underline;
}

.resource-title {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-size: 2.5rem;
    font-weight: 900;
    margin: 0 0 1rem 0;
    line-height: 1.2;
    position: relative;
    z-index: 1;
}

.resource-subtitle {
    font-size: 1.125rem;
    color: var(--text-secondary, #64748b);
    margin: 0 0 1.5rem 0;
    line-height: 1.6;
    position: relative;
    z-index: 1;
}

body.dark-mode .resource-subtitle {
    color: var(--text-secondary, #94a3b8);
}

.resource-meta {
    display: flex;
    align-items: center;
    gap: 2rem;
    flex-wrap: wrap;
    position: relative;
    z-index: 1;
}

.meta-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.9375rem;
    color: var(--text-primary, #1e293b);
}

body.dark-mode .meta-item {
    color: var(--text-primary, #f8fafc);
}

.meta-item i {
    color: var(--primary-color, #667eea);
    font-size: 1rem;
}

.difficulty-badge {
    padding: 0.375rem 0.875rem;
    background: var(--gradient-primary);
    color: white;
    font-size: 0.8125rem;
    font-weight: 700;
    border-radius: 8px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.difficulty-badge.intermediate {
    background: var(--gradient-warning);
}

.difficulty-badge.expert {
    background: var(--gradient-accent);
}

/* ============================================
   TABLE DES MATIÈRES
   ============================================ */

.table-of-contents {
    background: rgba(255, 255, 255, 0.7);
    backdrop-filter: blur(20px) saturate(180%);
    border: 1px solid rgba(255, 255, 255, 0.3);
    border-radius: 24px;
    padding: 2rem;
    margin-bottom: 3rem;
    box-shadow: var(--shadow-card);
    animation: fadeInUp 0.6s ease 0.2s both;
}

body.dark-mode .table-of-contents {
    background: rgba(30, 41, 59, 0.7);
    border-color: rgba(255, 255, 255, 0.1);
}

.toc-title {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-size: 1.25rem;
    font-weight: 800;
    margin: 0 0 1.5rem 0;
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.toc-list {
    list-style: none;
    padding: 0;
    margin: 0;
    counter-reset: toc-counter;
}

.toc-list li {
    counter-increment: toc-counter;
    margin-bottom: 0.75rem;
}

.toc-list a {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 0.75rem 1rem;
    color: var(--text-primary, #1e293b);
    text-decoration: none;
    border-radius: 12px;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
}

body.dark-mode .toc-list a {
    color: var(--text-primary, #f8fafc);
}

.toc-list a::before {
    content: counter(toc-counter);
    display: flex;
    align-items: center;
    justify-content: center;
    width: 28px;
    height: 28px;
    background: var(--gradient-primary);
    color: white;
    font-size: 0.75rem;
    font-weight: 700;
    border-radius: 8px;
    flex-shrink: 0;
}

.toc-list a:hover {
    background: rgba(102, 126, 234, 0.1);
    transform: translateX(8px);
}

body.dark-mode .toc-list a:hover {
    background: rgba(255, 255, 255, 0.05);
}

/* ============================================
   SECTIONS DE CONTENU
   ============================================ */

.content-section {
    background: rgba(255, 255, 255, 0.7);
    backdrop-filter: blur(20px) saturate(180%);
    border: 1px solid rgba(255, 255, 255, 0.3);
    border-radius: 24px;
    padding: 2.5rem;
    margin-bottom: 2.5rem;
    box-shadow: var(--shadow-card);
    animation: fadeInUp 0.6s ease both;
}

body.dark-mode .content-section {
    background: rgba(30, 41, 59, 0.7);
    border-color: rgba(255, 255, 255, 0.1);
}

.section-header {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-size: 1.75rem;
    font-weight: 800;
    margin: 0 0 2rem 0;
    display: flex;
    align-items: center;
    gap: 1rem;
}

.section-header i {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.subsection-header {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-size: 1.375rem;
    font-weight: 700;
    margin: 2rem 0 1.5rem 0;
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.content-text {
    font-size: 1rem;
    color: var(--text-primary, #1e293b);
    line-height: 1.8;
    margin-bottom: 1.5rem;
}

body.dark-mode .content-text {
    color: var(--text-primary, #f8fafc);
}

.content-text strong {
    color: var(--primary-color, #667eea);
    font-weight: 700;
}

/* ============================================
   FORMULES MATHÉMATIQUES
   ============================================ */

.formula-block {
    background: linear-gradient(135deg, 
        rgba(102, 126, 234, 0.05) 0%, 
        rgba(118, 75, 162, 0.05) 100%);
    border: 2px solid rgba(102, 126, 234, 0.2);
    border-radius: 16px;
    padding: 2rem;
    margin: 2rem 0;
    text-align: center;
    position: relative;
    overflow: hidden;
}

body.dark-mode .formula-block {
    background: linear-gradient(135deg, 
        rgba(102, 126, 234, 0.1) 0%, 
        rgba(118, 75, 162, 0.1) 100%);
    border-color: rgba(255, 255, 255, 0.1);
}

.formula-block::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--gradient-primary);
}

.formula-title {
    font-size: 1rem;
    font-weight: 700;
    color: var(--primary-color, #667eea);
    margin-bottom: 1rem;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.formula-content {
    font-size: 1.375rem;
    font-family: 'Courier New', monospace;
    color: var(--text-primary, #1e293b);
    background: rgba(255, 255, 255, 0.5);
    padding: 1.5rem;
    border-radius: 12px;
    margin: 1rem 0;
    font-weight: 600;
    letter-spacing: 0.5px;
}

body.dark-mode .formula-content {
    color: var(--text-primary, #f8fafc);
    background: rgba(255, 255, 255, 0.05);
}

.formula-legend {
    font-size: 0.9375rem;
    color: var(--text-secondary, #64748b);
    margin-top: 1rem;
    text-align: left;
    line-height: 1.8;
}

body.dark-mode .formula-legend {
    color: var(--text-secondary, #94a3b8);
}

.formula-legend dt {
    font-weight: 700;
    color: var(--primary-color, #667eea);
    margin-top: 0.5rem;
}

.formula-legend dd {
    margin: 0 0 0 1.5rem;
}

/* ============================================
   CARDS D'EXEMPLE
   ============================================ */

.example-card {
    background: rgba(102, 126, 234, 0.05);
    border: 1px solid rgba(102, 126, 234, 0.2);
    border-left: 4px solid var(--primary-color, #667eea);
    border-radius: 16px;
    padding: 2rem;
    margin: 2rem 0;
}

body.dark-mode .example-card {
    background: rgba(255, 255, 255, 0.03);
    border-color: rgba(255, 255, 255, 0.1);
    border-left-color: var(--primary-color, #667eea);
}

.example-header {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 1.125rem;
    font-weight: 700;
    color: var(--primary-color, #667eea);
    margin-bottom: 1.5rem;
}

.example-header i {
    font-size: 1.375rem;
}

.example-content {
    font-size: 0.9375rem;
    color: var(--text-primary, #1e293b);
    line-height: 1.8;
}

body.dark-mode .example-content {
    color: var(--text-primary, #f8fafc);
}

/* ============================================
   TABLES DE DONNÉES
   ============================================ */

.data-table-wrapper {
    overflow-x: auto;
    margin: 2rem 0;
    border-radius: 16px;
    background: rgba(102, 126, 234, 0.03);
    border: 1px solid rgba(102, 126, 234, 0.1);
}

body.dark-mode .data-table-wrapper {
    background: rgba(255, 255, 255, 0.02);
    border-color: rgba(255, 255, 255, 0.1);
}

.data-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.9375rem;
}

.data-table thead {
    background: var(--gradient-primary);
    color: white;
}

.data-table th {
    padding: 1rem 1.5rem;
    text-align: left;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    font-size: 0.8125rem;
}

.data-table td {
    padding: 1rem 1.5rem;
    border-bottom: 1px solid rgba(102, 126, 234, 0.1);
    color: var(--text-primary, #1e293b);
}

body.dark-mode .data-table td {
    color: var(--text-primary, #f8fafc);
    border-bottom-color: rgba(255, 255, 255, 0.1);
}

.data-table tbody tr:hover {
    background: rgba(102, 126, 234, 0.05);
}

body.dark-mode .data-table tbody tr:hover {
    background: rgba(255, 255, 255, 0.03);
}

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

/* ============================================
   HIGHLIGHTS & ALERTS
   ============================================ */

.info-box {
    background: linear-gradient(135deg, 
        rgba(79, 172, 254, 0.1) 0%, 
        rgba(0, 242, 254, 0.1) 100%);
    border: 2px solid rgba(79, 172, 254, 0.3);
    border-left-width: 4px;
    border-radius: 12px;
    padding: 1.5rem;
    margin: 2rem 0;
}

body.dark-mode .info-box {
    background: linear-gradient(135deg, 
        rgba(79, 172, 254, 0.15) 0%, 
        rgba(0, 242, 254, 0.15) 100%);
    border-color: rgba(79, 172, 254, 0.4);
}

.warning-box {
    background: linear-gradient(135deg, 
        rgba(250, 112, 154, 0.1) 0%, 
        rgba(254, 225, 64, 0.1) 100%);
    border: 2px solid rgba(250, 112, 154, 0.3);
    border-left-width: 4px;
    border-radius: 12px;
    padding: 1.5rem;
    margin: 2rem 0;
}

body.dark-mode .warning-box {
    background: linear-gradient(135deg, 
        rgba(250, 112, 154, 0.15) 0%, 
        rgba(254, 225, 64, 0.15) 100%);
    border-color: rgba(250, 112, 154, 0.4);
}

.success-box {
    background: linear-gradient(135deg, 
        rgba(16, 185, 129, 0.1) 0%, 
        rgba(5, 150, 105, 0.1) 100%);
    border: 2px solid rgba(16, 185, 129, 0.3);
    border-left-width: 4px;
    border-radius: 12px;
    padding: 1.5rem;
    margin: 2rem 0;
}

body.dark-mode .success-box {
    background: linear-gradient(135deg, 
        rgba(16, 185, 129, 0.15) 0%, 
        rgba(5, 150, 105, 0.15) 100%);
    border-color: rgba(16, 185, 129, 0.4);
}

.box-header {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-weight: 700;
    margin-bottom: 0.75rem;
    font-size: 1rem;
}

.info-box .box-header {
    color: #0ea5e9;
}

.warning-box .box-header {
    color: #f59e0b;
}

.success-box .box-header {
    color: #10b981;
}

.box-content {
    font-size: 0.9375rem;
    color: var(--text-primary, #1e293b);
    line-height: 1.7;
}

body.dark-mode .box-content {
    color: var(--text-primary, #f8fafc);
}

/* ============================================
   CHARTS CONTAINER
   ============================================ */

.chart-container {
    background: rgba(255, 255, 255, 0.5);
    border: 1px solid rgba(102, 126, 234, 0.1);
    border-radius: 16px;
    padding: 2rem;
    margin: 2rem 0;
    height: 400px;
    position: relative;
}

body.dark-mode .chart-container {
    background: rgba(255, 255, 255, 0.03);
    border-color: rgba(255, 255, 255, 0.1);
}

.chart-title {
    font-size: 1rem;
    font-weight: 700;
    color: var(--text-primary, #1e293b);
    margin-bottom: 1.5rem;
    text-align: center;
}

body.dark-mode .chart-title {
    color: var(--text-primary, #f8fafc);
}

/* ============================================
   NAVIGATION BAS DE PAGE
   ============================================ */

.page-navigation {
    display: flex;
    justify-content: space-between;
    gap: 1.5rem;
    margin-top: 4rem;
    padding-top: 2rem;
    border-top: 2px solid rgba(102, 126, 234, 0.1);
}

body.dark-mode .page-navigation {
    border-top-color: rgba(255, 255, 255, 0.1);
}

.nav-button {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1.25rem 2rem;
    background: rgba(102, 126, 234, 0.1);
    border: 2px solid rgba(102, 126, 234, 0.2);
    border-radius: 16px;
    color: var(--text-primary, #1e293b);
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    flex: 1;
    max-width: 300px;
}

body.dark-mode .nav-button {
    background: rgba(255, 255, 255, 0.05);
    border-color: rgba(255, 255, 255, 0.1);
    color: var(--text-primary, #f8fafc);
}

.nav-button:hover {
    background: var(--gradient-primary);
    border-color: transparent;
    color: white;
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(102, 126, 234, 0.3);
}

.nav-button.prev {
    justify-content: flex-start;
}

.nav-button.next {
    justify-content: flex-end;
    margin-left: auto;
}

.nav-button i {
    font-size: 1.25rem;
}

/* ============================================
   CODE SNIPPETS - CORRECTION VISIBILITÉ
   ============================================ */

.code-block {
    background: #1e293b !important; /* Forcer le fond sombre */
    border: 2px solid rgba(102, 126, 234, 0.3);
    border-radius: 12px;
    padding: 1.5rem;
    margin: 2rem 0;
    overflow-x: auto;
    position: relative;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.2);
    /* CORRECTION: Supprimer backdrop-filter pour éviter le flou */
}

body.dark-mode .code-block {
    background: #0f172a !important;
    border-color: rgba(102, 126, 234, 0.4);
}

.code-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
    padding-bottom: 0.75rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.code-lang {
    font-size: 0.75rem;
    font-weight: 700;
    color: #94a3b8;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.copy-code-btn {
    padding: 0.375rem 0.75rem;
    background: rgba(102, 126, 234, 0.2);
    border: 1px solid rgba(102, 126, 234, 0.4);
    border-radius: 6px;
    color: #cbd5e1;
    font-size: 0.75rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
}

.copy-code-btn:hover {
    background: rgba(102, 126, 234, 0.4);
    color: white;
    border-color: rgba(102, 126, 234, 0.6);
}

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

.code-content {
    font-family: 'Courier New', 'Consolas', monospace;
    font-size: 0.875rem;
    color: #e2e8f0 !important; /* Forcer la couleur claire */
    line-height: 1.7;
    white-space: pre-wrap;
    word-wrap: break-word;
    /* CORRECTION: Assurer le contraste maximal */
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.5);
}

/* ============================================
   LISTS STYLING
   ============================================ */

.styled-list {
    list-style: none;
    padding: 0;
    margin: 1.5rem 0;
}

.styled-list li {
    position: relative;
    padding-left: 2rem;
    margin-bottom: 1rem;
    font-size: 0.9375rem;
    color: var(--text-primary, #1e293b);
    line-height: 1.7;
}

body.dark-mode .styled-list li {
    color: var(--text-primary, #f8fafc);
}

.styled-list li::before {
    content: '✓';
    position: absolute;
    left: 0;
    top: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 24px;
    height: 24px;
    background: var(--gradient-primary);
    color: white;
    font-size: 0.75rem;
    font-weight: 700;
    border-radius: 6px;
}

/* ============================================
   RESPONSIVE DESIGN - TABLET
   ============================================ */

@media (max-width: 1024px) {
    .resource-container {
        padding: 1.5rem 1rem 3rem;
    }

    .resource-header {
        padding: 2rem 1.5rem;
    }

    .resource-title {
        font-size: 2rem;
    }

    .content-section {
        padding: 2rem 1.5rem;
    }

    .section-header {
        font-size: 1.5rem;
    }

    .chart-container {
        height: 350px;
    }
    
    .btn-back-dashboard {
        padding: 0.75rem 1.5rem;
        font-size: 0.875rem;
    }
}

/* ============================================
   RESPONSIVE DESIGN - MOBILE
   ============================================ */

@media (max-width: 768px) {
    .resource-container {
        padding: 1rem 0.75rem 2rem;
    }

    .styled-list li::before {
    content: '•' !important;
    width: auto !important;
    height: auto !important;
    background: none !important;
    color: #667eea !important;
    font-size: 1.25rem !important;
    border-radius: 0 !important;
    display: inline !important;
    position: static !important;
    margin-right: 0.5rem;
}

.styled-list li {
    padding-left: 0 !important;
    display: flex;
    align-items: flex-start;
    gap: 0.5rem;
}

    .resource-header {
        padding: 1.5rem 1.25rem;
        border-radius: 20px;
    }

    .resource-title {
        font-size: 1.75rem;
    }

    .resource-subtitle {
        font-size: 1rem;
    }

    .resource-meta {
        gap: 1rem;
    }

    .table-of-contents {
        padding: 1.5rem;
    }

    .content-section {
        padding: 1.5rem 1.25rem;
        border-radius: 20px;
    }

    .section-header {
        font-size: 1.375rem;
        gap: 0.75rem;
    }

    .subsection-header {
        font-size: 1.125rem;
    }

    .formula-content {
        font-size: 1.125rem;
        padding: 1.25rem;
    }

    .chart-container {
        height: 300px;
        padding: 1.5rem 1rem;
    }

    .data-table {
        font-size: 0.875rem;
    }

    .data-table th,
    .data-table td {
        padding: 0.75rem 1rem;
    }

    .page-navigation {
        flex-direction: column;
        gap: 1rem;
    }

    .nav-button {
        max-width: 100%;
    }

    .nav-button.next {
        margin-left: 0;
    }
    
    /* Code blocks mobile */
    .code-block {
        padding: 1rem;
        border-radius: 10px;
    }
    
    .code-content {
        font-size: 0.8125rem;
        line-height: 1.6;
    }
    
    .copy-code-btn {
        padding: 0.25rem 0.5rem;
        font-size: 0.6875rem;
    }
}

/* ============================================
   RESPONSIVE DESIGN - SMALL MOBILE
   ============================================ */

@media (max-width: 480px) {
    .resource-title {
        font-size: 1.5rem;
    }

    .resource-subtitle {
        font-size: 0.9375rem;
    }

    .content-section {
        padding: 1.25rem 1rem;
    }

    .section-header {
        font-size: 1.25rem;
        flex-direction: column;
        align-items: flex-start;
        gap: 0.5rem;
    }

    .formula-block {
        padding: 1.5rem 1rem;
    }

    .formula-content {
        font-size: 1rem;
        padding: 1rem;
    }

    .example-card {
        padding: 1.5rem 1rem;
    }

    .chart-container {
        height: 250px;
        padding: 1rem 0.75rem;
    }

    .nav-button {
        padding: 1rem 1.5rem;
        font-size: 0.9375rem;
    }
    
    .btn-back-dashboard {
        padding: 0.625rem 1rem;
        font-size: 0.8125rem;
    }
    
    /* Code blocks très petit mobile */
    .code-block {
        padding: 0.875rem;
        margin: 1.5rem 0;
    }
    
    .code-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.5rem;
    }
    
    .code-content {
        font-size: 0.75rem;
        line-height: 1.5;
    }
    
    /* Tables responsive */
    .data-table-wrapper {
        overflow-x: scroll;
        -webkit-overflow-scrolling: touch;
    }
    
    .data-table {
        font-size: 0.8125rem;
        min-width: 500px;
    }
    
    .data-table th,
    .data-table td {
        padding: 0.625rem 0.75rem;
    }
    
    /* Formules responsive */
    .formula-content {
        font-size: 0.875rem;
        padding: 0.875rem;
        overflow-x: auto;
    }
}

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

@media print {
    .sidebar,
    .top-header,
    .page-navigation,
    .copy-code-btn {
        display: none !important;
    }

    .main-content {
        margin-left: 0 !important;
    }

    .resource-container {
        max-width: 100%;
        padding: 0;
    }

    .content-section {
        break-inside: avoid;
        box-shadow: none;
        border: 1px solid #ccc;
        page-break-inside: avoid;
    }

    .chart-container {
        break-inside: avoid;
        page-break-inside: avoid;
    }
    
    .code-block {
        background: #f8fafc !important;
        border: 1px solid #cbd5e1 !important;
        page-break-inside: avoid;
    }
    
    .code-content {
        color: #1e293b !important;
        text-shadow: none;
    }
}

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

/* Focus visible pour navigation clavier */
.btn-back-dashboard:focus,
.nav-button:focus,
.toc-list a:focus,
.copy-code-btn:focus {
    outline: 3px solid rgba(102, 126, 234, 0.5);
    outline-offset: 2px;
}

/* Réduire les animations pour préférence mouvement réduit */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* Améliorer le contraste en mode haut contraste */
@media (prefers-contrast: high) {
    .code-block {
        border-width: 3px;
    }
    
    .code-content {
        color: #ffffff !important;
        font-weight: 600;
    }
    
    .btn-back-dashboard {
        border: 2px solid white;
    }
}