/* Thème kaki et brun pour l'interface */
:root {
    --kaki-dark: #5a5a3a;
    --kaki-medium: #6b6b4a;
    --kaki-light: #8a8a6a;
    --kaki-lighter: #9a9a7a;
    --brown-dark: #4a3a2a;
    --brown-medium: #6a4a3a;
    --brown-light: #8a6a5a;
    --brown-lighter: #aa8a7a;
    --cream: #f5f4f0;
    --cream-dark: #e8e6e0;
    --shadow: rgba(90, 90, 58, 0.2);
    --shadow-dark: rgba(74, 58, 42, 0.3);
}

/* Corps de la page */
body {
    background: linear-gradient(135deg, var(--cream) 0%, var(--cream-dark) 100%);
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    color: var(--brown-dark);
    min-height: 100vh;
}

/* Header principal */
.navbar {
    background: linear-gradient(135deg, var(--kaki-dark) 0%, var(--brown-dark) 100%);
    box-shadow: 0 4px 15px var(--shadow-dark);
    border-bottom: 2px solid var(--brown-medium);
}

.navbar-brand {
    color: var(--cream) !important;
    font-weight: 600;
    font-size: 1.4rem;
}

/* Container principal */
.main-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 2rem;
}

/* Cartes principales */
.card {
    background: rgba(255, 255, 255, 0.95);
    border: 1px solid var(--kaki-lighter);
    border-radius: 15px;
    box-shadow: 0 8px 25px var(--shadow);
    backdrop-filter: blur(10px);
    margin-bottom: 2rem;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 12px 35px var(--shadow-dark);
}

.card-header {
    background: linear-gradient(135deg, var(--kaki-medium) 0%, var(--kaki-dark) 100%);
    color: var(--cream);
    border-radius: 15px 15px 0 0;
    padding: 1.5rem;
    border-bottom: 2px solid var(--brown-light);
}

.card-title {
    margin: 0;
    font-weight: 600;
    font-size: 1.3rem;
}

.card-body {
    padding: 2rem;
}

/* Section d'upload */
.upload-section {
    background: linear-gradient(135deg, var(--kaki-light) 0%, var(--brown-light) 100%);
    border-radius: 15px;
    padding: 2rem;
    margin-bottom: 2rem;
    box-shadow: inset 0 2px 10px var(--shadow);
}

.upload-area {
    border: 3px dashed var(--kaki-dark);
    border-radius: 12px;
    padding: 3rem;
    text-align: center;
    background: rgba(255, 255, 255, 0.8);
    transition: all 0.3s ease;
}

.upload-area:hover {
    border-color: var(--brown-medium);
    background: rgba(255, 255, 255, 0.9);
    transform: scale(1.02);
}

/* === STYLES DFM MODERNES === */

/* Container principal DFM */
.dfm-modern-container {
    background: linear-gradient(135deg, rgba(255,255,255,0.95) 0%, rgba(245,244,240,0.95) 100%);
    border-radius: 20px;
    padding: 2rem;
    box-shadow: 0 15px 40px var(--shadow-dark);
    border: 1px solid var(--kaki-lighter);
    backdrop-filter: blur(15px);
}

/* En-tête DFM */
.dfm-header {
    position: relative;
    padding: 1.5rem 0;
}

.dfm-title-section {
    position: relative;
}

.dfm-icon-badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, var(--kaki-dark) 0%, var(--brown-dark) 100%);
    color: var(--cream);
    border-radius: 15px;
    font-size: 1.5rem;
    box-shadow: 0 8px 20px var(--shadow-dark);
}

.dfm-main-title {
    color: var(--brown-dark);
    font-weight: 700;
    font-size: 2rem;
    margin: 0;
    letter-spacing: -0.5px;
}

.dfm-subtitle {
    color: var(--kaki-medium);
    font-size: 1rem;
    font-weight: 500;
    opacity: 0.9;
}

/* Boutons d'action DFM */
.btn-dfm-primary {
    background: linear-gradient(135deg, var(--kaki-dark) 0%, var(--brown-dark) 100%);
    border: none;
    color: var(--cream);
    padding: 0.75rem 1.5rem;
    border-radius: 12px;
    font-weight: 600;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px var(--shadow);
}

.btn-dfm-primary:hover {
    background: linear-gradient(135deg, var(--brown-dark) 0%, var(--kaki-dark) 100%);
    transform: translateY(-2px);
    box-shadow: 0 8px 25px var(--shadow-dark);
    color: var(--cream);
}

.btn-dfm-secondary {
    background: linear-gradient(135deg, var(--kaki-light) 0%, var(--kaki-medium) 100%);
    border: none;
    color: white;
    padding: 0.75rem 1.5rem;
    border-radius: 12px;
    font-weight: 500;
    transition: all 0.3s ease;
    box-shadow: 0 3px 10px var(--shadow);
}

.btn-dfm-secondary:hover {
    background: linear-gradient(135deg, var(--kaki-medium) 0%, var(--kaki-dark) 100%);
    transform: translateY(-1px);
    box-shadow: 0 6px 20px var(--shadow);
    color: white;
}

/* Grille d'analyse DFM */
.dfm-analysis-grid {
    display: grid;
    gap: 2rem;
    margin-top: 2rem;
}

/* Carte de score principal */
.dfm-score-card {
    background: linear-gradient(135deg, rgba(255,255,255,0.95) 0%, rgba(250,250,250,0.95) 100%);
    border: 2px solid var(--kaki-lighter);
    border-radius: 20px;
    padding: 2rem;
    text-align: center;
    position: relative;
    overflow: hidden;
    box-shadow: 0 10px 30px var(--shadow);
}

.dfm-score-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--kaki-dark), var(--brown-dark), var(--kaki-dark));
}

.dfm-score-circle {
    width: 120px;
    height: 120px;
    border-radius: 50%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
    position: relative;
    box-shadow: 0 10px 30px rgba(0,0,0,0.2);
}

.dfm-score-number {
    font-size: 2.5rem;
    font-weight: 800;
    line-height: 1;
    color: white;
}

.dfm-score-max {
    font-size: 1rem;
    font-weight: 600;
    color: rgba(255,255,255,0.8);
}

.dfm-rating-badge {
    display: inline-block;
    padding: 0.5rem 1.5rem;
    border-radius: 25px;
    font-weight: 600;
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin: 1rem 0;
}

/* Cartes de métriques */
.dfm-metrics-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin: 2rem 0;
}

.dfm-metric-card {
    background: rgba(255,255,255,0.8);
    border: 1px solid var(--kaki-lighter);
    border-radius: 15px;
    padding: 1.5rem;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.dfm-metric-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px var(--shadow);
    border-color: var(--kaki-medium);
}

.dfm-metric-header {
    display: flex;
    align-items: center;
    margin-bottom: 1rem;
}

.dfm-metric-icon {
    width: 40px;
    height: 40px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-right: 1rem;
    font-size: 1.2rem;
    color: white;
}

.dfm-metric-title {
    font-weight: 600;
    color: var(--brown-dark);
    margin: 0;
    font-size: 1rem;
}

.dfm-metric-value {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--kaki-dark);
    margin-bottom: 0.5rem;
}

.dfm-metric-unit {
    font-size: 0.9rem;
    color: var(--kaki-medium);
    font-weight: 500;
}

/* Section des problèmes */
.dfm-issues-section {
    background: rgba(255,255,255,0.6);
    border-radius: 15px;
    padding: 2rem;
    margin: 2rem 0;
    border: 1px solid var(--kaki-lighter);
}

.dfm-issues-header {
    display: flex;
    align-items: center;
    margin-bottom: 1.5rem;
    padding-bottom: 1rem;
    border-bottom: 2px solid var(--kaki-lighter);
}

.dfm-issues-title {
    font-size: 1.3rem;
    font-weight: 600;
    color: var(--brown-dark);
    margin: 0;
}

.dfm-issue-item {
    background: rgba(255,255,255,0.9);
    border: 1px solid var(--kaki-lighter);
    border-radius: 12px;
    padding: 1rem 1.5rem;
    margin-bottom: 1rem;
    transition: all 0.3s ease;
    border-left: 4px solid;
}

.dfm-issue-item:hover {
    transform: translateX(5px);
    box-shadow: 0 5px 15px var(--shadow);
}

/* Animation pour les collapses DFM */
.collapse {
    transition: height 0.3s ease;
}

.dfm-issue-header {
    display: flex;
    align-items: center;
    justify-content: between;
    margin-bottom: 0.5rem;
}

.dfm-issue-severity {
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.dfm-issue-description {
    color: var(--brown-dark);
    margin-bottom: 0.5rem;
    font-weight: 500;
}

.dfm-issue-recommendation {
    color: var(--kaki-medium);
    font-size: 0.9rem;
    font-style: italic;
}

/* Couleurs de sévérité */
.severity-critical {
    border-left-color: #dc3545;
}

.severity-critical .dfm-issue-severity {
    background: #dc3545;
    color: white;
}

.severity-warning {
    border-left-color: #ffc107;
}

.severity-warning .dfm-issue-severity {
    background: #ffc107;
    color: #212529;
}

.severity-info {
    border-left-color: #17a2b8;
}

.severity-info .dfm-issue-severity {
    background: #17a2b8;
    color: white;
}

/* Recommandations */
.dfm-recommendations {
    background: linear-gradient(135deg, var(--cream) 0%, rgba(255,255,255,0.9) 100%);
    border-radius: 15px;
    padding: 2rem;
    margin: 2rem 0;
    border: 1px solid var(--kaki-lighter);
}

.dfm-recommendation-item {
    background: rgba(255,255,255,0.8);
    border-radius: 10px;
    padding: 1rem;
    margin-bottom: 1rem;
    border-left: 4px solid var(--kaki-dark);
    transition: all 0.3s ease;
}

.dfm-recommendation-item:hover {
    transform: translateX(3px);
    box-shadow: 0 3px 10px var(--shadow);
}

/* Responsivité */
@media (max-width: 768px) {
    .dfm-modern-container {
        padding: 1rem;
        margin: 1rem;
        border-radius: 15px;
    }
    
    .dfm-main-title {
        font-size: 1.5rem;
    }
    
    .dfm-metrics-row {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
    
    .dfm-score-circle {
        width: 100px;
        height: 100px;
    }
    
    .dfm-score-number {
        font-size: 2rem;
    }
}
}

.upload-area.dragover {
    border-color: var(--brown-dark);
    background: rgba(255, 255, 255, 0.95);
}

/* Boutons */
.btn {
    border-radius: 25px;
    padding: 0.8rem 2rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    transition: all 0.3s ease;
    border: none;
    box-shadow: 0 4px 15px var(--shadow);
}

.btn-primary {
    background: linear-gradient(135deg, var(--kaki-medium) 0%, var(--kaki-dark) 100%);
    color: var(--cream);
}

.btn-primary:hover {
    background: linear-gradient(135deg, var(--kaki-dark) 0%, var(--brown-dark) 100%);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px var(--shadow-dark);
}

.btn-secondary {
    background: linear-gradient(135deg, var(--brown-light) 0%, var(--brown-medium) 100%);
    color: var(--cream);
}

.btn-secondary:hover {
    background: linear-gradient(135deg, var(--brown-medium) 0%, var(--brown-dark) 100%);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px var(--shadow-dark);
}

.btn-success {
    background: linear-gradient(135deg, #7a8a5a 0%, #6a7a4a 100%);
    color: var(--cream);
}

.btn-success:hover {
    background: linear-gradient(135deg, #6a7a4a 0%, #5a6a3a 100%);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px var(--shadow-dark);
}

.btn-warning {
    background: linear-gradient(135deg, var(--brown-lighter) 0%, var(--brown-light) 100%);
    color: var(--brown-dark);
}

.btn-warning:hover {
    background: linear-gradient(135deg, var(--brown-light) 0%, var(--brown-medium) 100%);
    color: var(--cream);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px var(--shadow-dark);
}

/* Groupe de boutons */
.btn-group {
    gap: 1rem;
    flex-wrap: wrap;
    justify-content: center;
}

.btn-group .btn {
    margin: 0.5rem;
}

/* Visualisateur 3D */
.viewer-container {
    background: linear-gradient(135deg, var(--kaki-light) 0%, var(--brown-light) 100%);
    border-radius: 15px;
    padding: 1.5rem;
    box-shadow: inset 0 2px 10px var(--shadow);
    position: relative;
}

#viewer {
    border-radius: 10px;
    box-shadow: 0 8px 25px var(--shadow-dark);
    background: #2a2a2a;
    border: 2px solid var(--kaki-dark);
}

/* Contrôles du visualisateur */
.viewer-controls {
    display: flex;
    justify-content: center;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
    margin-top: 1.5rem;
    padding: 1rem;
    background: rgba(255, 255, 255, 0.8);
    border-radius: 10px;
    backdrop-filter: blur(5px);
}

/* Outils de mesure */
.measurement-tools {
    background: linear-gradient(135deg, var(--brown-lighter) 0%, var(--brown-light) 100%);
    border-radius: 10px;
    padding: 1rem;
    margin-top: 1rem;
}

.measurement-tools h6 {
    color: var(--brown-dark);
    margin-bottom: 0.5rem;
}

/* Barre de progression */
.progress {
    height: 8px;
    border-radius: 4px;
    background: var(--cream-dark);
    overflow: hidden;
    box-shadow: inset 0 2px 5px var(--shadow);
}

.progress-bar {
    background: linear-gradient(90deg, var(--kaki-medium) 0%, var(--brown-medium) 100%);
    border-radius: 4px;
    transition: width 0.3s ease;
}

/* Mode sombre - Compatibilité Bootstrap */
[data-bs-theme="dark"] {
    --bs-body-bg: #1a1a1a;
    --bs-body-color: #e0e0e0;
    --bs-card-bg: #2d2d30;
    --bs-dropdown-bg: #2d2d30;
    --bs-dropdown-link-color: #e0e0e0;
    --bs-dropdown-link-hover-bg: #404040;
    --bs-dropdown-border-color: #454545;
    --bs-nav-link-color: #e0e0e0;
    --bs-nav-link-hover-color: #ffffff;
}

/* Corrections spécifiques mode sombre */
[data-bs-theme="dark"] .card {
    background: var(--bs-card-bg);
    border-color: #454545;
    color: var(--bs-body-color);
}

[data-bs-theme="dark"] .dropdown-menu {
    background-color: var(--bs-dropdown-bg);
    border-color: var(--bs-dropdown-border-color);
}

[data-bs-theme="dark"] .dropdown-item {
    color: var(--bs-dropdown-link-color);
}

[data-bs-theme="dark"] .dropdown-item:hover,
[data-bs-theme="dark"] .dropdown-item:focus {
    background-color: var(--bs-dropdown-link-hover-bg);
    color: var(--bs-dropdown-link-color);
}

[data-bs-theme="dark"] .table {
    --bs-table-bg: transparent;
    color: var(--bs-body-color);
}

[data-bs-theme="dark"] .table-striped > tbody > tr:nth-of-type(odd) > td {
    background-color: rgba(255, 255, 255, 0.05);
}

[data-bs-theme="dark"] .badge {
    color: #ffffff;
}

/* Historique des conversions en mode sombre */
[data-bs-theme="dark"] .conversion-item {
    background: #2d2d30;
    border-color: #454545;
    color: var(--bs-body-color);
}

[data-bs-theme="dark"] .conversion-item:hover {
    background: #3a3a3d;
}

/* Analyse DFM en mode sombre */
[data-bs-theme="dark"] .dfm-score-card,
[data-bs-theme="dark"] .dfm-metric-card,
[data-bs-theme="dark"] .dfm-projection-card,
[data-bs-theme="dark"] .dfm-problem-card,
[data-bs-theme="dark"] .dfm-recommendation-item {
    background: #2d2d30;
    border-color: #454545;
    color: var(--bs-body-color);
}

[data-bs-theme="dark"] .dfm-section-title {
    color: var(--bs-body-color);
}

/* Alerts et notifications */
.alert {
    border-radius: 10px;
    border: none;
    box-shadow: 0 4px 15px var(--shadow);
    backdrop-filter: blur(10px);
}

.alert-success {
    background: linear-gradient(135deg, rgba(122, 138, 90, 0.9) 0%, rgba(106, 122, 74, 0.9) 100%);
    color: var(--cream);
}

.alert-warning {
    background: linear-gradient(135deg, rgba(170, 138, 122, 0.9) 0%, rgba(138, 106, 90, 0.9) 100%);
    color: var(--cream);
}

.alert-danger {
    background: linear-gradient(135deg, rgba(138, 74, 58, 0.9) 0%, rgba(106, 58, 42, 0.9) 100%);
    color: var(--cream);
}

.alert-info {
    background: linear-gradient(135deg, rgba(107, 107, 74, 0.9) 0%, rgba(90, 90, 58, 0.9) 100%);
    color: var(--cream);
}

/* Analyse DFM */
.dfm-analysis {
    background: linear-gradient(135deg, var(--kaki-lighter) 0%, var(--brown-lighter) 100%);
    border-radius: 15px;
    padding: 2rem;
    margin-top: 2rem;
    box-shadow: 0 8px 25px var(--shadow);
}

.dfm-score {
    font-size: 2rem;
    font-weight: bold;
    color: var(--brown-dark);
    text-align: center;
    margin-bottom: 1rem;
}

.dfm-rating {
    text-align: center;
    padding: 1rem;
    border-radius: 10px;
    margin-bottom: 1rem;
    font-weight: 600;
}

.dfm-rating.excellent {
    background: linear-gradient(135deg, #7a8a5a 0%, #6a7a4a 100%);
    color: var(--cream);
}

.dfm-rating.good {
    background: linear-gradient(135deg, var(--kaki-medium) 0%, var(--kaki-dark) 100%);
    color: var(--cream);
}

.dfm-rating.warning {
    background: linear-gradient(135deg, var(--brown-lighter) 0%, var(--brown-light) 100%);
    color: var(--brown-dark);
}

.dfm-rating.critical {
    background: linear-gradient(135deg, #8a5a4a 0%, #7a4a3a 100%);
    color: var(--cream);
}

/* Recommandations */
.recommendations {
    background: rgba(255, 255, 255, 0.9);
    border-radius: 10px;
    padding: 1.5rem;
    margin-top: 1rem;
    border-left: 4px solid var(--kaki-medium);
}

.recommendations h6 {
    color: var(--brown-dark);
    margin-bottom: 1rem;
}

.recommendations ul {
    margin: 0;
    padding-left: 1.5rem;
}

.recommendations li {
    margin-bottom: 0.5rem;
    color: var(--brown-medium);
}

/* Historique */
.history-section {
    background: linear-gradient(135deg, var(--cream) 0%, rgba(255, 255, 255, 0.9) 100%);
    border-radius: 15px;
    padding: 2rem;
    margin-top: 2rem;
    box-shadow: 0 8px 25px var(--shadow);
}

.history-item {
    background: rgba(255, 255, 255, 0.8);
    border-radius: 10px;
    padding: 1rem;
    margin-bottom: 1rem;
    border-left: 4px solid var(--kaki-medium);
    transition: all 0.3s ease;
}

.history-item:hover {
    background: rgba(255, 255, 255, 0.95);
    transform: translateX(5px);
    box-shadow: 0 4px 15px var(--shadow);
}

/* Design responsive */
@media (max-width: 768px) {
    .main-container {
        padding: 1rem;
    }
    
    .card-body {
        padding: 1.5rem;
    }
    
    .upload-area {
        padding: 2rem 1rem;
    }
    
    .btn-group {
        flex-direction: column;
        align-items: stretch;
    }
    
    .btn-group .btn {
        margin: 0.25rem 0;
    }
    
    .viewer-controls {
        flex-direction: column;
        gap: 0.5rem;
    }
}

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

.fade-in {
    animation: fadeIn 0.6s ease-out;
}

/* Onglets personnalisés DFM */
.dfm-tabs-container {
    margin-top: 1.5rem;
}

.dfm-custom-tabs {
    border-bottom: 2px solid var(--kaki-lighter);
    margin-bottom: 0;
}

.dfm-tab-btn {
    color: var(--brown-medium) !important;
    background: transparent !important;
    border: none !important;
    border-bottom: 3px solid transparent !important;
    padding: 1rem 1.5rem !important;
    font-weight: 500 !important;
    transition: all 0.3s ease !important;
    border-radius: 0 !important;
}

.dfm-tab-btn:hover {
    color: var(--kaki-dark) !important;
    background: rgba(139, 139, 106, 0.1) !important;
    border-bottom-color: var(--kaki-light) !important;
}

.dfm-tab-btn.active {
    color: var(--kaki-dark) !important;
    background: rgba(139, 139, 106, 0.15) !important;
    border-bottom-color: var(--kaki-dark) !important;
    font-weight: 600 !important;
}

.dfm-tab-content {
    background: rgba(255, 255, 255, 0.7);
    border: 1px solid var(--kaki-lighter);
    border-top: none;
    border-radius: 0 0 15px 15px;
    padding: 2rem;
    min-height: 400px;
}

.tab-pane {
    animation: fadeInTab 0.4s ease-out;
}

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

/* Tooltips personnalisés */
.tooltip {
    font-size: 0.9rem;
}

.tooltip-inner {
    background: var(--brown-dark);
    color: var(--cream);
    border-radius: 8px;
    padding: 0.75rem;
    max-width: 300px;
}

/* Icônes et badges */
.badge {
    border-radius: 15px;
    font-size: 0.8rem;
    padding: 0.5rem 0.8rem;
}

.badge-success {
    background: linear-gradient(135deg, #7a8a5a 0%, #6a7a4a 100%);
}

.badge-warning {
    background: linear-gradient(135deg, var(--brown-lighter) 0%, var(--brown-light) 100%);
}

.badge-danger {
    background: linear-gradient(135deg, #8a5a4a 0%, #7a4a3a 100%);
}

/* Scrollbar personnalisée */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: var(--cream-dark);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb {
    background: linear-gradient(135deg, var(--kaki-medium) 0%, var(--brown-medium) 100%);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: linear-gradient(135deg, var(--kaki-dark) 0%, var(--brown-dark) 100%);
}

/* Spinner de chargement */
.spinner-border {
    color: var(--kaki-medium);
}

/* Éléments de focus */
.btn:focus,
.form-control:focus {
    outline: none;
    box-shadow: 0 0 0 3px rgba(107, 107, 74, 0.3);
}

/* Transitions globales */
* {
    transition: color 0.3s ease, background-color 0.3s ease, border-color 0.3s ease;
}

/* === OPTIMISATION AFFICHAGE DFM === */

/* Container principal optimisé - Pleine largeur */
.dfm-analysis-container {
    background: rgba(255, 255, 255, 0.98);
    border-radius: 20px;
    padding: 2.5rem;
    box-shadow: 0 12px 40px var(--shadow);
    border: 1px solid var(--kaki-lighter);
    margin-top: 2rem;
    width: 100%;
    max-width: none;
}

/* Grille de résultats - Optimisée pleine largeur */
.dfm-results-grid {
    display: grid;
    gap: 2rem;
    width: 100%;
    grid-template-columns: 1fr;
}

/* Carte de score optimisée */
.score-card {
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    border-radius: 20px;
    overflow: hidden;
}

.score-card:hover {
    transform: translateY(-8px) scale(1.02);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
}

/* Carte résumé */
.summary-card {
    border: 2px solid var(--kaki-lighter);
    border-radius: 15px;
    transition: all 0.3s ease;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.9) 0%, rgba(248, 248, 248, 0.9) 100%);
}

.summary-card:hover {
    border-color: var(--kaki-medium);
    box-shadow: 0 12px 25px var(--shadow);
    transform: translateY(-3px);
}

/* Accordéon optimisé */
.accordion-item {
    border-radius: 15px !important;
    overflow: hidden;
    margin-bottom: 1.5rem;
    border: 2px solid var(--kaki-lighter);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.05);
}

.accordion-button {
    background: linear-gradient(135deg, var(--kaki-light) 0%, var(--brown-light) 100%);
    color: white;
    border: none;
    font-weight: 600;
    padding: 1.25rem 1.75rem;
    font-size: 1.1rem;
    transition: all 0.3s ease;
}

.accordion-button:not(.collapsed) {
    background: linear-gradient(135deg, var(--kaki-dark) 0%, var(--brown-dark) 100%);
    color: white;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

.accordion-button:hover {
    background: linear-gradient(135deg, var(--kaki-medium) 0%, var(--brown-medium) 100%);
    transform: translateY(-1px);
}

.accordion-button:focus {
    box-shadow: 0 0 0 0.25rem rgba(90, 90, 58, 0.25);
}

.accordion-button::after {
    filter: brightness(0) invert(1);
    transition: transform 0.3s ease;
}

.accordion-body {
    background: white;
    padding: 2rem;
    border-top: 2px solid var(--cream-dark);
}

/* Items dimensionnels */
.dimension-item {
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    border: 2px solid var(--kaki-lighter);
    border-radius: 12px;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.9) 0%, rgba(248, 248, 248, 0.9) 100%);
}

.dimension-item:hover {
    transform: translateY(-5px) scale(1.02);
    box-shadow: 0 10px 25px var(--shadow);
    border-color: var(--kaki-medium);
}

/* Cartes de risque */
.risk-card {
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    border-radius: 12px;
    background: white;
    position: relative;
    overflow: hidden;
}

.risk-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.1) 0%, transparent 100%);
    pointer-events: none;
}

.risk-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.15);
}

/* Items de recommandation */
.recommendation-item {
    transition: all 0.3s ease;
    border-radius: 12px;
    border: 1px solid transparent;
    position: relative;
}

.recommendation-item:hover {
    transform: translateX(8px) scale(1.01);
    background: linear-gradient(135deg, rgba(138, 138, 106, 0.08) 0%, rgba(106, 106, 74, 0.08) 100%) !important;
    border-color: var(--kaki-light);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

/* Items de résumé */
.summary-item {
    padding: 0.75rem 0;
    border-bottom: 1px solid var(--cream-dark);
    transition: all 0.3s ease;
}

.summary-item:last-child {
    border-bottom: none;
}

.summary-item:hover {
    background: rgba(138, 138, 106, 0.05);
    padding-left: 0.5rem;
    border-radius: 8px;
}

/* Animations d'entrée */
@keyframes slideInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.dfm-analysis-container {
    animation: slideInUp 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Responsive pour DFM optimisé */
@media (max-width: 992px) {
    .dfm-analysis-container {
        padding: 1.5rem;
    }
    
    .score-card {
        margin-bottom: 1.5rem;
    }
    
    .accordion-button {
        padding: 1rem 1.25rem;
        font-size: 1rem;
    }
    
    .accordion-body {
        padding: 1.5rem;
    }
}

@media (max-width: 768px) {
    .dfm-analysis-container {
        padding: 1rem;
        margin-top: 1rem;
    }
    
    .accordion-button {
        padding: 0.75rem 1rem;
        font-size: 0.9rem;
    }
    
    .accordion-body {
        padding: 1rem;
    }
    
    .dimension-item {
        margin-bottom: 1rem;
    }
}

/* === RECOMMANDATIONS MATÉRIAUX === */

.dfm-materials-section {
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.95) 0%, rgba(248, 248, 248, 0.95) 100%);
    border-radius: 15px;
    padding: 2rem;
    border: 2px solid var(--kaki-lighter);
    box-shadow: 0 8px 25px var(--shadow);
}

.material-recommendations-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 1.5rem;
    margin-top: 1.5rem;
}

.material-recommendation-card {
    background: white;
    border-radius: 15px;
    padding: 1.5rem;
    border: 2px solid var(--kaki-lighter);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.08);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
}

.material-recommendation-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(135deg, var(--kaki-medium) 0%, var(--brown-medium) 100%);
}

.material-recommendation-card:hover {
    transform: translateY(-8px) scale(1.02);
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.15);
    border-color: var(--kaki-medium);
}

.material-card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
}

.material-rank {
    background: linear-gradient(135deg, var(--kaki-dark) 0%, var(--brown-dark) 100%);
    color: white;
    border-radius: 20px;
    padding: 0.4rem 0.8rem;
    font-weight: 600;
    font-size: 0.9rem;
}

.material-score {
    background: linear-gradient(135deg, #28a745 0%, #20c997 100%);
    color: white;
    border-radius: 15px;
    padding: 0.3rem 0.6rem;
    font-weight: 600;
    font-size: 0.85rem;
}

.material-name {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--brown-dark);
    margin-bottom: 0.5rem;
}

.material-category {
    color: var(--kaki-medium);
    font-weight: 500;
    font-size: 0.9rem;
    margin-bottom: 1rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.material-description {
    color: var(--brown-medium);
    line-height: 1.5;
    margin-bottom: 1rem;
    font-size: 0.95rem;
}

.material-cost-level {
    margin-bottom: 1rem;
}

.material-advantages, .material-limitations {
    margin-bottom: 1rem;
}

.material-advantages strong, .material-limitations strong {
    color: var(--brown-dark);
    font-weight: 600;
    font-size: 0.9rem;
}

.material-advantages ul, .material-limitations ul {
    margin: 0.5rem 0 0 0;
    padding-left: 1.2rem;
}

.material-advantages li, .material-limitations li {
    margin-bottom: 0.3rem;
    font-size: 0.85rem;
    line-height: 1.4;
    color: var(--brown-medium);
}

.material-advantages li {
    color: #155724;
}

.material-limitations li {
    color: #721c24;
}

.material-processing-notes {
    background: rgba(138, 138, 106, 0.1);
    border-radius: 8px;
    padding: 0.8rem;
    border-left: 4px solid var(--kaki-medium);
}

.disabled-option {
    opacity: 0.5;
    pointer-events: none;
    background-color: #f8f9fa;
}

.disabled-option label {
    color: #6c757d;
    text-decoration: line-through;
}

.warning-message {
    background-color: #fff3cd;
    color: #856404;
    border-left: 4px solid #ffc107;
    padding: 10px 15px;
    border-radius: 4px;
    margin-top: 1rem;
    font-size: 0.95rem;
}

.compatibility-info {
    background-color: #d1ecf1;
    border: 1px solid #bee5eb;
    color: #0c5460;
    padding: 0.5rem;
    border-radius: 0.375rem;
    margin-top: 1rem;
    font-size: 0.875rem;
}

.form-check-input:disabled {
    opacity: 0.5;
}

.material-processing-notes small {
    font-size: 0.8rem;
    line-height: 1.4;
}

/* Responsive pour recommandations matériaux */
@media (max-width: 768px) {
    .material-recommendations-grid {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
    
    .material-recommendation-card {
        padding: 1.25rem;
    }
    
    .material-name {
        font-size: 1.1rem;
    }
    
    .material-description {
        font-size: 0.9rem;
    }
    #uploadArea {
      border: 3px dashed var(--kaki-dark, #aaa);
      border-radius: 12px;
      padding: 3rem;
      text-align: center;
      background: rgba(255, 255, 255, 0.8);
      transition: all 0.3s ease;
      cursor: pointer;
      position: relative;
      z-index: 1;
    }

    #uploadArea.drag-over {
      background-color: #f0fff0 !important;
      border: 3px dashed #28a745 !important;
      box-shadow: 0 0 12px rgba(40, 167, 69, 0.5) !important;
      color: #28a745 !important;
    }

    .upload-content {
      pointer-events: none; /* Permet au dragover de traverser */
    }

    #fileNameDisplay {
      margin-top: 10px;
      font-weight: bold;
      color: #333;
    }

}