/* ========================================
   css/dstv-demo.css - Styles spécifiques à la démo DSTV
======================================== */

/* =================================
   STYLES SPÉCIFIQUES DÉMO DSTV
================================= */

.dstv-demo {
    --demo-primary: #3b82f6;
    --demo-secondary: #10b981;
    --demo-accent: #f59e0b;
}

/* Container principal */
.dstv-step {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    padding: var(--space-8);
    margin-bottom: var(--space-6);
    position: relative;
    overflow: hidden;
}

.dstv-step::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, 
        var(--demo-primary) 0%, 
        var(--demo-secondary) 50%, 
        var(--demo-accent) 100%);
}

/* Import de fichiers */
.file-import-section {
    display: flex;
    flex-direction: column;
    gap: var(--space-8);
}

.import-methods {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--space-6);
}

.import-method {
    border: 2px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: var(--space-6);
    transition: all 0.3s ease;
    cursor: pointer;
    position: relative;
    overflow: hidden;
}

.import-method::after {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, 
        transparent, 
        rgba(59, 130, 246, 0.1), 
        transparent);
    transition: left 0.6s ease;
}

.import-method:hover::after {
    left: 100%;
}

.import-method:hover {
    border-color: var(--demo-primary);
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(59, 130, 246, 0.2);
}

.import-method.active {
    border-color: var(--demo-primary);
    background: rgba(59, 130, 246, 0.05);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

.method-header {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    margin-bottom: var(--space-4);
}

.method-header i {
    color: var(--demo-primary);
    font-size: 1.75rem;
}

.method-header h4 {
    margin: 0;
    color: var(--text-primary);
    font-size: 1.25rem;
}

/* Zone d'upload */
.file-upload-zone {
    border: 3px dashed var(--border-color);
    border-radius: var(--radius-xl);
    padding: var(--space-12) var(--space-8);
    text-align: center;
    cursor: pointer;
    transition: all 0.3s ease;
    background: var(--bg-secondary);
    position: relative;
    overflow: hidden;
}

.file-upload-zone::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(
        circle at center,
        rgba(59, 130, 246, 0.05) 0%,
        transparent 70%
    );
    opacity: 0;
    transition: opacity 0.3s ease;
}

.file-upload-zone:hover::before,
.file-upload-zone.drag-over::before {
    opacity: 1;
}

.file-upload-zone:hover,
.file-upload-zone.drag-over {
    border-color: var(--demo-primary);
    background: rgba(59, 130, 246, 0.02);
    transform: scale(1.01);
}

.upload-content i {
    font-size: 4rem;
    color: var(--demo-primary);
    margin-bottom: var(--space-6);
    display: block;
    animation: float 3s ease-in-out infinite;
}

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

.upload-content h5 {
    margin-bottom: var(--space-2);
    color: var(--text-primary);
    font-size: 1.25rem;
}

.upload-content p {
    margin-bottom: var(--space-6);
    color: var(--text-muted);
}

.file-types {
    display: inline-flex;
    gap: var(--space-3);
    padding: var(--space-2) var(--space-4);
    background: var(--bg-tertiary);
    border-radius: var(--radius-full);
    font-size: 0.875rem;
    color: var(--text-muted);
}

/* Statut d'import */
.import-status {
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
    padding: var(--space-6);
    border: 1px solid var(--border-color);
    margin-top: var(--space-6);
}

.status-content {
    display: flex;
    align-items: center;
    gap: var(--space-4);
    margin-bottom: var(--space-4);
}

.status-icon {
    color: var(--demo-primary);
    font-size: 2rem;
}

.status-text h5 {
    margin: 0 0 var(--space-1);
    color: var(--text-primary);
    font-size: 1.1rem;
}

.status-text p {
    margin: 0;
    color: var(--text-muted);
    font-size: 0.9rem;
}

.progress-bar {
    height: 8px;
    background: var(--bg-tertiary);
    border-radius: var(--radius-full);
    overflow: hidden;
    position: relative;
}

.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, 
        var(--demo-primary) 0%, 
        var(--demo-secondary) 100%);
    width: 0%;
    transition: width 0.3s ease;
    position: relative;
    overflow: hidden;
}

.progress-fill::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    bottom: 0;
    right: 0;
    background: linear-gradient(
        90deg,
        transparent,
        rgba(255, 255, 255, 0.3),
        transparent
    );
    animation: shimmer 2s infinite;
}

@keyframes shimmer {
    0% { transform: translateX(-100%); }
    100% { transform: translateX(100%); }
}

/* Résultats d'import */
.import-results {
    display: flex;
    flex-direction: column;
    gap: var(--space-6);
    margin-top: var(--space-6);
}

.results-summary {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--space-4);
}

.summary-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: var(--space-4);
    display: flex;
    gap: var(--space-3);
    align-items: center;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.summary-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    bottom: 0;
    width: 4px;
}

.summary-card.success::before {
    background: var(--success-color);
}

.summary-card.info::before {
    background: var(--info-color);
}

.summary-card.warning::before {
    background: var(--warning-color);
}

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

.summary-card i {
    font-size: 1.5rem;
    flex-shrink: 0;
}

.summary-card.success i {
    color: var(--success-color);
}

.summary-card.info i {
    color: var(--info-color);
}

.summary-card.warning i {
    color: var(--warning-color);
}

.summary-info {
    flex: 1;
}

.summary-title {
    font-size: 0.875rem;
    color: var(--text-muted);
    margin-bottom: var(--space-1);
}

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

/* Aperçu des fichiers */
.file-preview {
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
    padding: var(--space-6);
    border: 1px solid var(--border-color);
}

.file-preview h4 {
    margin-bottom: var(--space-4);
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: var(--space-2);
}

.file-preview h4 i {
    color: var(--demo-primary);
}

.preview-table {
    overflow-x: auto;
    margin: -var(--space-6);
    padding: var(--space-6);
}

.preview-table table {
    width: 100%;
    min-width: 600px;
}

/* Badges d'opérations */
.operations-badges {
    display: flex;
    gap: var(--space-1);
    flex-wrap: wrap;
}

.operation-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-1);
    padding: var(--space-1) var(--space-2);
    border-radius: var(--radius-md);
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.operation-badge i {
    font-size: 0.625rem;
}

.operation-badge.cut {
    background: rgba(239, 68, 68, 0.15);
    color: #ef4444;
    border: 1px solid rgba(239, 68, 68, 0.3);
}

.operation-badge.drill {
    background: rgba(59, 130, 246, 0.15);
    color: #3b82f6;
    border: 1px solid rgba(59, 130, 246, 0.3);
}

.operation-badge.notch {
    background: rgba(245, 158, 11, 0.15);
    color: #f59e0b;
    border: 1px solid rgba(245, 158, 11, 0.3);
}

.operation-badge.punch {
    background: rgba(16, 185, 129, 0.15);
    color: #10b981;
    border: 1px solid rgba(16, 185, 129, 0.3);
}

/* Info DSTV */
.dstv-info {
    background: linear-gradient(135deg, 
        rgba(59, 130, 246, 0.05) 0%, 
        rgba(16, 185, 129, 0.05) 100%);
    border-radius: var(--radius-xl);
    padding: var(--space-8);
    margin-top: var(--space-8);
}

.info-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: var(--space-6);
    transition: all 0.3s ease;
}

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

.info-card h4 {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    margin-bottom: var(--space-4);
    color: var(--text-primary);
    font-size: 1.1rem;
}

.info-card h4 i {
    color: var(--demo-primary);
}

.format-features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--space-3);
    margin-top: var(--space-4);
}

.feature-item {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    color: var(--text-secondary);
    padding: var(--space-2);
    border-radius: var(--radius-md);
    transition: all 0.2s ease;
}

.feature-item:hover {
    background: var(--bg-secondary);
    padding-left: var(--space-3);
}

.feature-item i {
    color: var(--success-color);
    font-size: 0.875rem;
    flex-shrink: 0;
}

/* Validation des données */
.validation-section {
    display: flex;
    flex-direction: column;
    gap: var(--space-6);
}

.validation-controls {
    display: flex;
    gap: var(--space-3);
    flex-wrap: wrap;
}

.validation-results {
    display: flex;
    flex-direction: column;
    gap: var(--space-6);
}

.validation-summary {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: var(--space-4);
}

.validation-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: var(--space-4);
    display: flex;
    align-items: center;
    gap: var(--space-3);
    position: relative;
    overflow: hidden;
    transition: all 0.3s ease;
}

.validation-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    bottom: 0;
    width: 4px;
}

.validation-card.success::before {
    background: var(--success-color);
}

.validation-card.warning::before {
    background: var(--warning-color);
}

.validation-card.error::before {
    background: var(--error-color);
}

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

.card-icon {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    flex-shrink: 0;
    font-size: 1.25rem;
}

.validation-card.success .card-icon {
    background: linear-gradient(135deg, var(--success-color), #059669);
}

.validation-card.warning .card-icon {
    background: linear-gradient(135deg, var(--warning-color), #d97706);
}

.validation-card.error .card-icon {
    background: linear-gradient(135deg, var(--error-color), #dc2626);
}

.card-content {
    flex: 1;
}

.card-value {
    font-size: 1.75rem;
    font-weight: 800;
    color: var(--text-primary);
    display: block;
}

.card-label {
    font-size: 0.875rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

/* Configuration machine */
.machine-selector {
    margin-bottom: var(--space-8);
}

.machine-selector h4 {
    margin-bottom: var(--space-4);
    color: var(--text-primary);
}

.machine-types {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--space-4);
}

.machine-type {
    background: var(--bg-secondary);
    border: 2px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: var(--space-4);
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: var(--space-4);
}

.machine-type:hover {
    border-color: var(--demo-primary);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.machine-type.active {
    background: rgba(59, 130, 246, 0.1);
    border-color: var(--demo-primary);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

.machine-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--demo-primary), var(--demo-secondary));
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.5rem;
}

.machine-info {
    flex: 1;
}

.machine-name {
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--space-1);
}

.machine-desc {
    font-size: 0.875rem;
    color: var(--text-muted);
}

/* Paramètres machine */
.machine-parameters {
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
    padding: var(--space-6);
    margin-bottom: var(--space-8);
}

.machine-parameters h4 {
    margin-bottom: var(--space-4);
    color: var(--text-primary);
}

.parameters-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--space-4);
}

.parameter-group {
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
}

.parameter-group label {
    font-weight: 500;
    color: var(--text-primary);
    font-size: 0.9rem;
}

/* Séquence d'usinage */
.cutting-sequence {
    margin-bottom: var(--space-8);
}

.cutting-sequence h4 {
    margin-bottom: var(--space-4);
    color: var(--text-primary);
}

.sequence-preview {
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
    margin-bottom: var(--space-4);
}

.sequence-element {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: var(--space-4);
    display: flex;
    align-items: center;
    gap: var(--space-4);
    transition: all 0.3s ease;
    cursor: move;
}

.sequence-element:hover {
    transform: translateX(4px);
    box-shadow: var(--shadow-md);
}

.sequence-number {
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, var(--demo-primary), var(--demo-secondary));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: 700;
    flex-shrink: 0;
}

.sequence-info {
    flex: 1;
}

.sequence-title {
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--space-1);
}

.sequence-profile {
    font-size: 0.875rem;
    color: var(--text-muted);
    margin-bottom: var(--space-2);
}

.sequence-operations {
    display: flex;
    gap: var(--space-1);
    flex-wrap: wrap;
}

.sequence-time {
    font-weight: 600;
    color: var(--demo-primary);
    flex-shrink: 0;
}

.sequence-controls {
    display: flex;
    gap: var(--space-3);
    margin-top: var(--space-4);
}

/* Résumé d'usinage */
.machining-summary {
    background: linear-gradient(135deg, 
        rgba(59, 130, 246, 0.05) 0%, 
        rgba(16, 185, 129, 0.05) 100%);
    border-radius: var(--radius-xl);
    padding: var(--space-8);
}

.summary-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--space-6);
}

.stat-item {
    display: flex;
    align-items: center;
    gap: var(--space-4);
}

.stat-icon {
    width: 60px;
    height: 60px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--demo-primary);
    font-size: 1.5rem;
}

.stat-info {
    flex: 1;
}

.stat-value {
    font-size: 1.75rem;
    font-weight: 800;
    color: var(--text-primary);
    display: block;
}

.stat-label {
    font-size: 0.875rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

/* Export et génération */
.export-section {
    display: flex;
    flex-direction: column;
    gap: var(--space-8);
}

.export-options {
    margin-bottom: var(--space-6);
}

.export-options h4 {
    margin-bottom: var(--space-4);
    color: var(--text-primary);
}

.export-formats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--space-4);
}

.format-option {
    background: var(--bg-secondary);
    border: 2px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: var(--space-4);
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: var(--space-4);
}

.format-option:hover {
    border-color: var(--demo-primary);
    transform: translateY(-2px);
}

.format-option.active {
    background: rgba(59, 130, 246, 0.1);
    border-color: var(--demo-primary);
}

.format-option input[type="radio"] {
    display: none;
}

.format-info {
    display: flex;
    align-items: center;
    gap: var(--space-3);
}

.format-icon {
    width: 50px;
    height: 50px;
    background: var(--bg-tertiary);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--demo-primary);
    font-size: 1.25rem;
}

.format-details {
    flex: 1;
}

.format-name {
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--space-1);
}

.format-desc {
    font-size: 0.875rem;
    color: var(--text-muted);
}

/* Aperçu du code */
.code-preview {
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
    overflow: hidden;
    border: 1px solid var(--border-color);
}

.code-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--space-4);
    background: var(--bg-tertiary);
    border-bottom: 1px solid var(--border-color);
}

.file-name {
    font-family: var(--font-family-mono);
    font-size: 0.9rem;
    color: var(--text-primary);
}

.code-content {
    padding: var(--space-4);
    background: var(--bg-tertiary);
    overflow-x: auto;
}

.code-content pre {
    margin: 0;
    font-family: var(--font-family-mono);
    font-size: 0.875rem;
    color: var(--text-secondary);
    line-height: 1.6;
}

.code-content code {
    background: none;
    padding: 0;
    color: inherit;
}

/* Actions d'export */
.export-actions {
    display: flex;
    gap: var(--space-4);
    flex-wrap: wrap;
    justify-content: center;
}

.export-actions .btn-lg {
    min-width: 200px;
}

/* Résumé d'export */
.export-summary {
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
    padding: var(--space-6);
}

.summary-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--space-6);
}

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

.summary-label {
    font-size: 0.875rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: var(--space-2);
}

.summary-value {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: var(--space-2);
}

.summary-detail {
    font-size: 0.875rem;
    color: var(--text-secondary);
}

/* État prêt pour la machine */
.machine-ready {
    margin-top: var(--space-8);
}

.ready-status {
    background: rgba(16, 185, 129, 0.1);
    border: 1px solid rgba(16, 185, 129, 0.3);
    border-radius: var(--radius-lg);
    padding: var(--space-6);
    display: flex;
    align-items: center;
    gap: var(--space-4);
    margin-bottom: var(--space-6);
}

.status-icon.success {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--success-color), #059669);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 2rem;
    flex-shrink: 0;
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { transform: scale(1); opacity: 1; }
    50% { transform: scale(1.05); opacity: 0.8; }
}

.status-content h5 {
    margin: 0 0 var(--space-2);
    font-size: 1.25rem;
    color: var(--text-primary);
}

.status-content p {
    margin: 0;
    color: var(--text-secondary);
}

.next-steps {
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
    padding: var(--space-6);
}

.next-steps h5 {
    margin: 0 0 var(--space-3);
    color: var(--text-primary);
}

.next-steps ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.next-steps li {
    padding: var(--space-3) 0;
    border-bottom: 1px solid var(--border-light);
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    gap: var(--space-3);
}

.next-steps li:last-child {
    border-bottom: none;
}

.next-steps li::before {
    content: '✓';
    width: 24px;
    height: 24px;
    background: var(--success-color);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    flex-shrink: 0;
}

/* Validation des éléments */
.elements-validation {
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
    padding: var(--space-6);
}

.elements-validation h4 {
    margin-bottom: var(--space-4);
    color: var(--text-primary);
}

.elements-list {
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
}

.element-validation {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: var(--space-4);
    transition: all 0.3s ease;
}

.element-validation:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.element-validation.valid {
    border-left: 4px solid var(--success-color);
}

.element-validation.warning {
    border-left: 4px solid var(--warning-color);
}

.element-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--space-3);
}

.element-info {
    flex: 1;
}

.element-id {
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--space-1);
}

.element-profile {
    font-size: 0.875rem;
    color: var(--text-muted);
}

.element-status {
    font-size: 1.25rem;
}

.element-operations {
    display: flex;
    gap: var(--space-3);
    flex-wrap: wrap;
}

.operation-item {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    font-size: 0.875rem;
    color: var(--text-secondary);
    padding: var(--space-2);
    background: var(--bg-secondary);
    border-radius: var(--radius-md);
}

.operation-pos {
    color: var(--text-muted);
}

/* Issues de validation */
.validation-issues {
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
    padding: var(--space-6);
}

.validation-issues h4 {
    margin-bottom: var(--space-4);
    color: var(--text-primary);
}

.issues-list {
    display: flex;
    flex-direction: column;
    gap: var(--space-4);
}

.issue-item {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: var(--space-4);
    display: flex;
    align-items: flex-start;
    gap: var(--space-4);
}

.issue-item.warning {
    border-left: 4px solid var(--warning-color);
}

.issue-item.info {
    border-left: 4px solid var(--info-color);
}

.issue-icon {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.issue-item.warning .issue-icon {
    background: rgba(245, 158, 11, 0.2);
    color: var(--warning-color);
}

.issue-item.info .issue-icon {
    background: rgba(59, 130, 246, 0.2);
    color: var(--info-color);
}

.issue-content {
    flex: 1;
}

.issue-title {
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--space-2);
}

.issue-description {
    font-size: 0.875rem;
    color: var(--text-secondary);
    margin-bottom: var(--space-2);
}

.issue-suggestion {
    font-size: 0.875rem;
    color: var(--text-muted);
    font-style: italic;
}

.issue-actions {
    display: flex;
    gap: var(--space-2);
    align-items: flex-start;
}

/* Responsive */
@media (max-width: 768px) {
    .dstv-step {
        padding: var(--space-6);
    }
    
    .import-methods {
        grid-template-columns: 1fr;
    }
    
    .machine-types {
        grid-template-columns: 1fr;
    }
    
    .validation-summary {
        grid-template-columns: 1fr;
    }
    
    .export-formats {
        grid-template-columns: 1fr;
    }
    
    .export-actions {
        flex-direction: column;
    }
    
    .export-actions .btn {
        width: 100%;
    }
    
    .summary-stats {
        grid-template-columns: 1fr;
    }
    
    .issue-item {
        flex-direction: column;
    }
    
    .issue-actions {
        width: 100%;
        justify-content: stretch;
    }
    
    .issue-actions .btn {
        flex: 1;
    }
}

@media (max-width: 480px) {
    .upload-content i {
        font-size: 3rem;
    }
    
    .upload-content h5 {
        font-size: 1.1rem;
    }
    
    .machine-icon {
        width: 50px;
        height: 50px;
    }
    
    .stat-icon {
        width: 50px;
        height: 50px;
    }
    
    .sequence-element {
        flex-direction: column;
        text-align: center;
    }
    
    .sequence-operations {
        justify-content: center;
    }
}