/* CAE Mesh Generator - Main Styles */

:root {
    --primary-color: #0d6efd;
    --secondary-color: #6c757d;
    --success-color: #198754;
    --warning-color: #ffc107;
    --danger-color: #dc3545;
    --info-color: #0dcaf0;
    --light-color: #f8f9fa;
    --dark-color: #212529;
    --sidebar-width: 280px;
    --header-height: 60px;
}

/* Global Styles */
body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: #f5f6fa;
    line-height: 1.6;
}

.container-fluid {
    padding: 0;
}

/* Navigation */
.navbar {
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    z-index: 1000;
}

.navbar-brand {
    font-weight: 600;
    font-size: 1.25rem;
}

/* Sidebar */
.sidebar {
    background: white;
    min-height: calc(100vh - 56px);
    border-right: 1px solid #dee2e6;
    padding: 0;
    position: sticky;
    top: 56px;
}

.sidebar-content {
    padding: 1.5rem;
}

.sidebar-title {
    color: var(--dark-color);
    font-weight: 600;
    margin-bottom: 1.5rem;
    padding-bottom: 0.5rem;
    border-bottom: 2px solid var(--primary-color);
}

/* Process Steps */
.process-steps {
    margin-bottom: 2rem;
}

.step-item {
    display: flex;
    align-items: flex-start;
    margin-bottom: 1.5rem;
    padding: 1rem;
    border-radius: 8px;
    transition: all 0.3s ease;
    cursor: pointer;
}

.step-item:hover {
    background-color: #f8f9fa;
    transform: translateX(5px);
}

.step-item.active {
    background-color: #e3f2fd;
    border-left: 4px solid var(--primary-color);
}

.step-item.completed {
    background-color: #e8f5e8;
    border-left: 4px solid var(--success-color);
}

.step-icon {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background-color: var(--light-color);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-right: 1rem;
    flex-shrink: 0;
    transition: all 0.3s ease;
}

.step-item.active .step-icon {
    background-color: var(--primary-color);
    color: white;
}

.step-item.completed .step-icon {
    background-color: var(--success-color);
    color: white;
}

.step-content h6 {
    margin-bottom: 0.25rem;
    font-weight: 600;
}

.step-content p {
    margin-bottom: 0;
    font-size: 0.875rem;
}

/* System Status */
.system-status {
    background-color: #f8f9fa;
    padding: 1rem;
    border-radius: 8px;
    border: 1px solid #dee2e6;
}

.status-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 0.5rem;
}

.status-item:last-child {
    margin-bottom: 0;
}

.status-label {
    font-size: 0.875rem;
    color: var(--secondary-color);
}

.status-value {
    font-size: 0.875rem;
    font-weight: 500;
}

/* Main Content */
.main-content {
    padding: 2rem;
    background-color: #f5f6fa;
}

.content-header {
    margin-bottom: 2rem;
}

.content-header h2 {
    color: var(--dark-color);
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.content-section {
    margin-bottom: 2rem;
}

/* Cards */
.card {
    border: none;
    border-radius: 12px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.08);
    transition: all 0.3s ease;
}

.card:hover {
    box-shadow: 0 4px 16px rgba(0,0,0,0.12);
}

.card-header {
    background-color: white;
    border-bottom: 1px solid #f0f0f0;
    border-radius: 12px 12px 0 0 !important;
    padding: 1.25rem 1.5rem;
}

.card-header h5 {
    color: var(--dark-color);
    font-weight: 600;
}

.card-body {
    padding: 1.5rem;
}

/* Upload Area */
.upload-area {
    border: 2px dashed #dee2e6;
    border-radius: 12px;
    padding: 3rem 2rem;
    text-align: center;
    transition: all 0.3s ease;
    cursor: pointer;
}

.upload-area:hover {
    border-color: var(--primary-color);
    background-color: #f8f9ff;
}

.upload-area.dragover {
    border-color: var(--primary-color);
    background-color: #e3f2fd;
    transform: scale(1.02);
}

.upload-icon {
    font-size: 3rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.upload-content h6 {
    color: var(--dark-color);
    font-weight: 600;
    margin-bottom: 0.5rem;
}

/* File Info */
.file-info {
    background-color: #f8f9fa;
    padding: 1rem;
    border-radius: 8px;
    border: 1px solid #dee2e6;
}

/* Progress */
.progress-container {
    margin-bottom: 1.5rem;
}

.progress {
    height: 12px;
    border-radius: 6px;
    background-color: #f0f0f0;
}

.progress-bar {
    border-radius: 6px;
    font-size: 0.75rem;
    line-height: 12px;
}

.progress-info {
    font-size: 0.875rem;
}

/* Processing Log */
.processing-log {
    margin-top: 1.5rem;
}

.log-container {
    background-color: #1e1e1e;
    color: #ffffff;
    padding: 1rem;
    border-radius: 8px;
    height: 200px;
    overflow-y: auto;
    font-family: 'Courier New', monospace;
    font-size: 0.875rem;
    line-height: 1.4;
}

.log-entry {
    margin-bottom: 0.25rem;
    padding: 0.25rem 0;
}

.log-entry.info {
    color: #4fc3f7;
}

.log-entry.success {
    color: #81c784;
}

.log-entry.warning {
    color: #ffb74d;
}

.log-entry.error {
    color: #e57373;
}

.log-timestamp {
    color: #9e9e9e;
    margin-right: 0.5rem;
}

/* Processing Controls */
.processing-controls {
    display: flex;
    gap: 0.5rem;
}

.processing-controls .btn {
    flex: 1;
    max-width: 150px;
}

/* Statistics Grid */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
}

.stat-item {
    text-align: center;
    padding: 1rem;
    background-color: #f8f9fa;
    border-radius: 8px;
    border: 1px solid #dee2e6;
    transition: all 0.3s ease;
}

.stat-item:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
}

.stat-value {
    font-size: 2rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

.stat-label {
    font-size: 0.875rem;
    color: var(--secondary-color);
    font-weight: 500;
}

/* Quality Status */
.quality-status {
    text-align: center;
    margin-bottom: 1rem;
}

.quality-badge .badge {
    font-size: 1rem;
    padding: 0.5rem 1rem;
    border-radius: 20px;
}

.quality-details {
    font-size: 0.875rem;
}

.quality-metric {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.5rem 0;
    border-bottom: 1px solid #f0f0f0;
}

.quality-metric:last-child {
    border-bottom: none;
}

.metric-label {
    color: var(--secondary-color);
}

.metric-value {
    font-weight: 600;
}

.metric-value.good {
    color: var(--success-color);
}

.metric-value.warning {
    color: var(--warning-color);
}

.metric-value.danger {
    color: var(--danger-color);
}

/* Visualization */
.visualization-container {
    position: relative;
    min-height: 400px;
}

.mesh-visualization {
    width: 100%;
    height: 400px;
    border: 1px solid #dee2e6;
    border-radius: 8px;
    background-color: #f8f9fa;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.visualization-placeholder {
    text-align: center;
    color: var(--secondary-color);
}

.visualization-placeholder-icon {
    font-size: 4rem;
    margin-bottom: 1rem;
    opacity: 0.5;
}

/* Export Options */
.export-options {
    margin-top: 1rem;
}

.export-options .btn {
    margin-bottom: 0.5rem;
}

/* Footer */
.footer {
    background-color: white;
    border-top: 1px solid #dee2e6;
    padding: 2rem 0;
    margin-top: auto;
}

.footer p {
    margin-bottom: 0;
    color: var(--secondary-color);
    font-size: 0.875rem;
}

/* Responsive Design */
@media (max-width: 768px) {
    .sidebar {
        position: static;
        min-height: auto;
        border-right: none;
        border-bottom: 1px solid #dee2e6;
    }
    
    .main-content {
        padding: 1rem;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .processing-controls {
        flex-direction: column;
    }
    
    .processing-controls .btn {
        max-width: none;
        margin-bottom: 0.5rem;
    }
    
    .export-options .row > div {
        margin-bottom: 0.5rem;
    }
}

@media (max-width: 576px) {
    .content-header h2 {
        font-size: 1.5rem;
    }
    
    .upload-area {
        padding: 2rem 1rem;
    }
    
    .upload-icon {
        font-size: 2rem;
    }
    
    .stat-value {
        font-size: 1.5rem;
    }
    
    .mesh-visualization {
        height: 300px;
    }
}

/* Animation Classes */
.fade-in {
    animation: fadeIn 0.5s ease-in;
}

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

.slide-in {
    animation: slideIn 0.3s ease-out;
}

@keyframes slideIn {
    from { transform: translateX(-100%); }
    to { transform: translateX(0); }
}

/* Loading States */
.loading {
    position: relative;
    overflow: hidden;
}

.loading::after {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.4), transparent);
    animation: loading 1.5s infinite;
}

@keyframes loading {
    0% { left: -100%; }
    100% { left: 100%; }
}

/* Utility Classes */
.text-truncate {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.shadow-sm {
    box-shadow: 0 2px 4px rgba(0,0,0,0.1) !important;
}

.shadow {
    box-shadow: 0 4px 8px rgba(0,0,0,0.15) !important;
}

.shadow-lg {
    box-shadow: 0 8px 16px rgba(0,0,0,0.2) !important;
}