/* vitalDSP Webapp Comprehensive Styles */

/* Global Styles - Light Theme (Default) */
:root {
    /* Color Palette */
    --primary-color: #2c3e50;
    --secondary-color: #3498db;
    --accent-color: #e74c3c;
    --success-color: #27ae60;
    --warning-color: #f39c12;
    --info-color: #17a2b8;
    --light-color: #ecf0f1;
    --dark-color: #2c3e50;
    
    /* Text Colors */
    --text-color: #2c3e50;
    --text-muted: #7f8c8d;
    --text-light: #ffffff;
    --text-dark: #1a1a1a;
    
    /* Background Colors */
    --background-color: #ffffff;
    --background-secondary: #f8f9fa;
    --background-tertiary: #e9ecef;
    --card-background: #ffffff;
    --sidebar-background: #2c3e50;
    --header-background: linear-gradient(135deg, #2c3e50, #3498db);
    
    /* Border Colors */
    --border-color: #bdc3c7;
    --border-light: #ecf0f1;
    --border-dark: #404040;
    
    /* Shadow Colors */
    --shadow-light: 0 2px 10px rgba(0, 0, 0, 0.1);
    --shadow-medium: 0 4px 20px rgba(0, 0, 0, 0.15);
    --shadow-dark: 0 8px 30px rgba(0, 0, 0, 0.2);
    
    /* Layout Variables */
    --sidebar-width: 280px;
    --sidebar-collapsed-width: 70px;
    --header-height: 4rem;
    --border-radius: 8px;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    
    /* Plot Colors */
    --plot-background: #ffffff;
    --plot-grid-color: #e0e0e0;
    --plot-text-color: #2c3e50;
    --plot-line-color: #3498db;
    --plot-accent-color: #e74c3c;
}

* {
    box-sizing: border-box;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    margin: 0;
    padding: 0;
    background-color: #ffffff;
    color: #2c3e50;
    line-height: 1.6;
    position: relative;
    overflow-x: hidden;
    transition: all 0.3s ease;
}

/* Dark theme body */
body[data-theme="dark"] {
    background-color: #1a1a1a !important;
    color: #ffffff !important;
}

/* Auto theme body */
body[data-theme="auto"] {
    background-color: #ffffff;
    color: #2c3e50;
}

/* Force theme application */
[data-theme="dark"] {
    background-color: #1a1a1a !important;
    color: #ffffff !important;
}

[data-theme="auto"] {
    background-color: #ffffff;
    color: #2c3e50;
}

/* Header Styles */
.header {
    background: var(--header-background);
    color: var(--text-light);
    padding: 1rem 2rem;
    box-shadow: var(--shadow-light);
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    height: var(--header-height);
    display: flex;
    align-items: center;
    justify-content: space-between;
    transition: var(--transition);
}

.header h1 {
    margin: 0;
    font-size: 1.8rem;
    font-weight: 600;
}

.header .subtitle {
    font-size: 1rem;
    opacity: 0.9;
    margin-top: 0.25rem;
}

/* Sidebar Styles */
.sidebar {
    position: fixed;
    top: var(--header-height);
    left: 0;
    width: var(--sidebar-width);
    height: calc(100vh - var(--header-height));
    background: var(--sidebar-background);
    color: var(--text-light);
    overflow-y: auto;
    overflow-x: hidden;
    z-index: 900;
    transition: var(--transition);
    box-shadow: var(--shadow-light);
    scrollbar-width: thin;
    scrollbar-color: rgba(255, 255, 255, 0.3) transparent;
}

.sidebar.sidebar-expanded {
    width: var(--sidebar-width);
}

.sidebar.sidebar-collapsed {
    width: var(--sidebar-collapsed-width);
    overflow: hidden;
}

.sidebar.sidebar-collapsed .sidebar-content {
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.2s ease;
    visibility: hidden;
}

.sidebar.sidebar-collapsed .sidebar-toggle {
    opacity: 1;
    pointer-events: auto;
    visibility: visible;
}

.sidebar.sidebar-expanded .sidebar-content {
    opacity: 1;
    pointer-events: auto;
    transition: opacity 0.3s ease;
}

/* Sidebar Toggle Button */
.sidebar-toggle {
    position: absolute;
    top: 10px;
    right: 10px;
    background: none;
    border: none;
    color: white;
    font-size: 18px;
    cursor: pointer;
    padding: 5px;
    border-radius: 4px;
    transition: background-color 0.2s ease;
    z-index: 1000;
    opacity: 1;
    pointer-events: auto;
}

.sidebar-toggle .fas {
    font-size: 18px;
}

.sidebar.sidebar-collapsed .sidebar-toggle {
    right: 15px;
    top: 15px;
    position: absolute;
    z-index: 1001;
}

/* Ensure toggle button is always visible */
.sidebar .sidebar-toggle {
    opacity: 1 !important;
    pointer-events: auto !important;
    visibility: visible !important;
}

/* Force hide sidebar content when collapsed */
.sidebar.sidebar-collapsed .sidebar-content * {
    display: none !important;
}

.sidebar.sidebar-collapsed .sidebar-content {
    display: none !important;
}

/* Ensure proper sidebar behavior */
.sidebar {
    position: fixed;
    top: var(--header-height);
    left: 0;
    height: calc(100vh - var(--header-height));
    background: linear-gradient(180deg, #2c3e50 0%, #34495e 100%);
    color: white;
    z-index: 900;
    transition: width 0.3s ease;
    box-shadow: 2px 0 10px rgba(0, 0, 0, 0.1);
}

.sidebar-toggle:hover {
    background-color: rgba(255, 255, 255, 0.1);
}

.sidebar-toggle:focus {
    outline: none;
    background-color: rgba(255, 255, 255, 0.2);
}

/* Sidebar Content */
.sidebar-content {
    padding: 20px;
    transition: opacity 0.3s ease;
    overflow-y: auto;
    height: 100%;
}

/* Sidebar Navigation Links */
.sidebar .nav-link {
    display: block;
    padding: 8px 0;
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    border-radius: 6px;
    margin-bottom: 5px;
    transition: all 0.2s ease;
    font-weight: 500;
}

.sidebar .nav-link:hover {
    color: white;
    background-color: rgba(255, 255, 255, 0.1);
    transform: translateX(5px);
}

.sidebar .nav-link.active {
    background-color: var(--secondary-color);
    color: white;
}

/* Sidebar Section Headers */
.sidebar h5, .sidebar h6 {
    color: white;
    margin-bottom: 15px;
    font-weight: 600;
}

.sidebar h6 {
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-top: 25px;
}

/* Theme toggle button styles */
#theme-toggle, #theme-toggle-collapsed {
    transition: all 0.3s ease;
    border: 1px solid rgba(255, 255, 255, 0.3);
    background-color: transparent;
    color: white;
}

#theme-toggle:hover, #theme-toggle-collapsed:hover {
    background-color: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.5);
    transform: translateY(-1px);
}

#theme-toggle:active, #theme-toggle-collapsed:active {
    transform: translateY(0);
    background-color: rgba(255, 255, 255, 0.2);
}

#theme-toggle:focus, #theme-toggle-collapsed:focus {
    outline: none;
    box-shadow: 0 0 0 2px rgba(255, 255, 255, 0.3);
}

/* Main Content */
.main-content {
    margin-left: var(--sidebar-width);
    margin-top: var(--header-height);
    padding: 2rem;
    min-height: calc(100vh - var(--header-height));
    transition: var(--transition);
}

.main-content.expanded {
    margin-left: var(--sidebar-collapsed-width);
}

/* Body container debugging */
#body {
    position: relative;
    min-height: 100vh;
}

/* Page content area - needs to adjust with sidebar */
#page-content {
    transition: left 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    background-color: #ffffff;
    color: #2c3e50;
}

/* Dark theme page content */
body[data-theme="dark"] #page-content {
    background-color: #1a1a1a !important;
    color: #ffffff !important;
}

/* Auto theme page content */
body[data-theme="auto"] #page-content {
    background-color: #ffffff;
    color: #2c3e50;
}

/* When sidebar is collapsed, adjust page content position */
.sidebar.sidebar-collapsed ~ #page-content {
    left: var(--sidebar-collapsed-width) !important;
}

/* When sidebar is expanded, use full sidebar width */
.sidebar.sidebar-expanded ~ #page-content {
    left: var(--sidebar-width) !important;
}

#page-content.expanded {
    left: var(--sidebar-width);
}

#page-content.collapsed {
    left: var(--sidebar-collapsed-width);
}

.page-content-expanded {
    left: var(--sidebar-width);
}

.page-content-collapsed {
    left: var(--sidebar-collapsed-width);
}

/* Responsive adjustments */
@media (max-width: 768px) {
    #page-content {
        margin-left: 0;
        margin-top: calc(var(--header-height) + 1rem);
        padding: 1rem;
        background-color: #ffffff;
        color: #2c3e50;
    }
    
    body[data-theme="dark"] #page-content {
        background-color: #1a1a1a !important;
        color: #ffffff !important;
    }
    
    .sidebar {
        transform: translateX(-100%);
    }
    
    .sidebar.expanded {
        transform: translateX(0);
    }
}

/* Card Styles */
.card {
    background: var(--card-background);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-light);
    border: 1px solid var(--border-color);
    margin-bottom: 1.5rem;
    transition: var(--transition);
    color: var(--text-color);
}

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

.card-title {
    color: var(--primary-color);
    font-weight: 600;
    margin-bottom: 1rem;
    padding-bottom: 0.5rem;
    border-bottom: 2px solid var(--secondary-color);
}

/* Section Titles */
.section-title {
    color: var(--primary-color);
    font-size: 1.25rem;
    font-weight: 600;
    margin: 1rem 0;
    padding: 0.5rem 0;
    border-left: 4px solid var(--secondary-color);
    padding-left: 1rem;
}

/* Form Controls */
.form-control, .form-select {
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: 0.5rem 0.75rem;
    transition: var(--transition);
}

.form-control:focus, .form-select:focus {
    border-color: var(--secondary-color);
    box-shadow: 0 0 0 0.2rem rgba(52, 152, 219, 0.25);
    outline: none;
}

/* Buttons */
.btn {
    padding: 0.5rem 1rem;
    border: none;
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: var(--transition);
    font-weight: 500;
    text-decoration: none;
    display: inline-block;
    text-align: center;
}

.btn-primary {
    background-color: var(--secondary-color);
    color: white;
}

.btn-primary:hover {
    background-color: #2980b9;
    transform: translateY(-1px);
}

.btn-success {
    background-color: var(--success-color);
    color: white;
}

.btn-success:hover {
    background-color: #229954;
    transform: translateY(-1px);
}

.btn-info {
    background-color: var(--info-color);
    color: white;
}

.btn-info:hover {
    background-color: #138496;
    transform: translateY(-1px);
}

.btn-secondary {
    background-color: var(--text-muted);
    color: white;
}

.btn-secondary:hover {
    background-color: #6c757d;
    transform: translateY(-1px);
}

.btn-danger {
    background-color: var(--accent-color);
    color: white;
}

.btn-danger:hover {
    background-color: #c0392b;
    transform: translateY(-1px);
}

/* Upload Area */
.upload-area {
    border: 2px dashed var(--border-color);
    border-radius: var(--border-radius);
    padding: 2rem;
    text-align: center;
    transition: var(--transition);
    cursor: pointer;
}

.upload-area:hover {
    border-color: var(--secondary-color);
    background-color: rgba(52, 152, 219, 0.05);
}

.upload-area.dragover {
    border-color: var(--success-color);
    background-color: rgba(39, 174, 96, 0.1);
}

/* Enhanced Upload Area */
.dash-uploader {
    border: 2px dashed var(--border-color);
    border-radius: var(--border-radius);
    padding: 2rem;
    text-align: center;
    transition: var(--transition);
    cursor: pointer;
    background-color: #f8f9fa;
    position: relative;
    overflow: hidden;
}

.dash-uploader:hover {
    border-color: var(--secondary-color);
    background-color: rgba(52, 152, 219, 0.05);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.dash-uploader.dragover {
    border-color: var(--success-color);
    background-color: rgba(39, 174, 96, 0.1);
    transform: scale(1.02);
}

.dash-uploader .fa-cloud-upload-alt {
    transition: var(--transition);
}

.dash-uploader:hover .fa-cloud-upload-alt {
    transform: scale(1.1);
    color: var(--secondary-color);
}

/* Upload Status Animations */
.upload-status-enter {
    opacity: 0;
    transform: translateY(-20px);
}

.upload-status-enter-active {
    opacity: 1;
    transform: translateY(0);
    transition: opacity 300ms, transform 300ms;
}

.upload-status-exit {
    opacity: 1;
    transform: translateY(0);
}

.upload-status-exit-active {
    opacity: 0;
    transform: translateY(-20px);
    transition: opacity 300ms, transform 300ms;
}

/* Data Preview */
.data-preview {
    background-color: var(--light-color);
    border-radius: var(--border-radius);
    padding: 1rem;
    margin: 1rem 0;
}

.data-preview table {
    width: 100%;
    border-collapse: collapse;
}

.data-preview th,
.data-preview td {
    padding: 0.5rem;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

.data-preview th {
    background-color: var(--primary-color);
    color: white;
    font-weight: 600;
}

/* Plotly Graph Styling */
.js-plotly-plot .plotly .main-svg {
    border-radius: var(--border-radius);
}

/* Loading States */
.loading {
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 2rem;
}

.loading-spinner {
    border: 4px solid var(--light-color);
    border-top: 4px solid var(--secondary-color);
    border-radius: 50%;
    width: 40px;
    height: 40px;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* Enhanced Loading Indicators and Progress Bars */
.upload-progress-section {
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
    border: 1px solid #dee2e6;
    border-radius: 12px;
    padding: 1.5rem;
    margin: 1rem 0;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
}

.upload-progress-section:hover {
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.15);
    transform: translateY(-2px);
}

.processing-progress-section {
    background: linear-gradient(135deg, #e3f2fd 0%, #bbdefb 100%);
    border: 1px solid #90caf9;
    border-radius: 12px;
    padding: 1.5rem;
    margin: 1rem 0;
    box-shadow: 0 4px 16px rgba(33, 150, 243, 0.3);
    transition: all 0.3s ease;
    animation: slideInDown 0.5s ease-out;
    position: relative;
    z-index: 1000;
}

.processing-progress-section:hover {
    box-shadow: 0 4px 16px rgba(33, 150, 243, 0.3);
    transform: translateY(-2px);
}

/* Debug Progress Section - Make it impossible to miss! */
.processing-progress-section .bg-warning {
    position: relative;
    z-index: 9999 !important;
    box-shadow: 0 0 20px rgba(255, 193, 7, 0.8) !important;
    border: 3px solid #dc3545 !important;
    animation: pulse 2s infinite !important;
}

.processing-progress-section .bg-warning h3 {
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
    font-size: 1.5rem !important;
}

.processing-progress-section .bg-warning p {
    font-size: 1.1rem !important;
    margin-bottom: 0.5rem !important;
}

/* Make sure the debug section appears on top of everything */
.processing-progress-section .bg-warning {
    position: relative;
    z-index: 9999 !important;
}

/* Progress Bar Enhancements */
.progress {
    height: 12px;
    border-radius: 6px;
    background-color: #e9ecef;
    overflow: hidden;
    box-shadow: inset 0 1px 2px rgba(0, 0, 0, 0.1);
}

.progress-bar {
    background: linear-gradient(90deg, var(--secondary-color) 0%, #2980b9 100%);
    border-radius: 6px;
    transition: width 0.6s ease;
    position: relative;
    overflow: hidden;
}

.progress-bar::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: shimmer 2s infinite;
}

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

/* Animated Progress Steps */
.progress-step {
    display: flex;
    align-items: center;
    margin-bottom: 0.75rem;
    padding: 0.5rem;
    border-radius: 8px;
    transition: all 0.3s ease;
}

.progress-step:hover {
    background-color: rgba(255, 255, 255, 0.5);
    transform: translateX(5px);
}

.progress-step.completed {
    color: var(--success-color);
}

.progress-step.active {
    color: var(--primary-color);
    background-color: rgba(52, 152, 219, 0.1);
}

.progress-step.pending {
    color: var(--text-muted);
}

.progress-step.error {
    color: var(--danger-color);
}

/* Loading Icons */
.loading-icon {
    font-size: 1.2rem;
    margin-right: 0.75rem;
    transition: all 0.3s ease;
}

.loading-icon.fa-spin {
    animation: spin 1s linear infinite;
}

.loading-icon.fa-check-circle {
    color: var(--success-color);
}

.loading-icon.fa-spinner {
    color: var(--primary-color);
}

.loading-icon.fa-clock {
    color: var(--text-muted);
}

/* Upload Area Enhancements */
.upload-area {
    border: 2px dashed var(--border-color);
    border-radius: var(--border-radius);
    padding: 2rem;
    text-align: center;
    transition: var(--transition);
    cursor: pointer;
    position: relative;
    overflow: hidden;
}

.upload-area:hover {
    border-color: var(--secondary-color);
    background-color: rgba(52, 152, 219, 0.05);
    transform: translateY(-2px);
}

.upload-area.dragover {
    border-color: var(--success-color);
    background-color: rgba(39, 174, 96, 0.1);
    transform: scale(1.02);
}

.upload-area.uploading {
    border-color: var(--primary-color);
    background-color: rgba(44, 62, 80, 0.05);
}

.upload-area.uploading::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(52, 152, 219, 0.1), transparent);
    animation: upload-shimmer 1.5s infinite;
}

@keyframes upload-shimmer {
    0% { left: -100%; }
    100% { left: 100%; }
}

/* Status Message Enhancements */
.status-message {
    padding: 1rem;
    border-radius: var(--border-radius);
    margin: 1rem 0;
    font-weight: 500;
    border-left: 4px solid;
    animation: slideInRight 0.5s ease-out;
}

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

.status-success {
    background-color: rgba(39, 174, 96, 0.1);
    color: var(--success-color);
    border-left-color: var(--success-color);
}

.status-error {
    background-color: rgba(231, 76, 60, 0.1);
    color: var(--accent-color);
    border-left-color: var(--accent-color);
}

.status-warning {
    background-color: rgba(243, 156, 18, 0.1);
    color: var(--warning-color);
    border-left-color: var(--warning-color);
}

.status-info {
    background-color: rgba(23, 162, 184, 0.1);
    color: var(--info-color);
    border-left-color: var(--info-color);
}

/* Button Loading States */
.btn.loading {
    position: relative;
    color: transparent;
    pointer-events: none;
}

.btn.loading::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 16px;
    height: 16px;
    margin: -8px 0 0 -8px;
    border: 2px solid transparent;
    border-top: 2px solid currentColor;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

/* Fade In Animation for Progress Sections */
.progress-section-enter {
    opacity: 0;
    transform: translateY(-20px);
}

.progress-section-enter-active {
    opacity: 1;
    transform: translateY(0);
    transition: opacity 300ms, transform 300ms;
}

.progress-section-exit {
    opacity: 1;
    transform: translateY(0);
}

.progress-section-exit-active {
    opacity: 0;
    transform: translateY(-20px);
    transition: opacity 300ms, transform 300ms;
}

/* Responsive Progress Indicators */
@media (max-width: 768px) {
    .upload-progress-section,
    .processing-progress-section {
        padding: 1rem;
        margin: 0.5rem 0;
    }
    
    .progress-step {
        padding: 0.25rem;
        margin-bottom: 0.5rem;
    }
    
    .loading-icon {
        font-size: 1rem;
        margin-right: 0.5rem;
    }
}

/* Control Sections */
.control-section {
    background-color: var(--light-color);
    border-radius: var(--border-radius);
    padding: 1.5rem;
    margin: 1rem 0;
}

.control-section h3 {
    color: var(--primary-color);
    margin-bottom: 1rem;
}

/* Row and Column Layouts */
.row {
    display: flex;
    flex-wrap: wrap;
    margin: 0 -0.5rem;
}

.col {
    flex: 1;
    padding: 0 0.5rem;
    min-width: 200px;
}

/* Responsive Design */
@media (max-width: 768px) {
    .sidebar {
        width: 100%;
        height: auto;
        position: relative;
        top: 0;
        transform: none !important;
    }
    
    .sidebar.collapsed {
        width: 100%;
    }
    
    .main-content {
        margin-left: 0;
        margin-top: 0;
        padding: 1rem;
    }
    
    #page-content {
        position: relative;
        top: 0;
        left: 0;
        right: 0;
        margin-top: 1rem;
        background-color: #ffffff;
        color: #2c3e50;
    }
    
    body[data-theme="dark"] #page-content {
        background-color: #1a1a1a !important;
        color: #ffffff !important;
    }
    
    .header {
        position: relative;
        height: auto;
        padding: 1rem;
    }
    
    .row {
        flex-direction: column;
    }
    
    .col {
        margin-bottom: 1rem;
    }
    
    .sidebar-header {
        margin: 0 0 1rem 0;
        border-radius: 0;
    }
}

/* Dark Theme */
[data-theme="dark"] {
    /* Color Palette - Dark Theme */
    --primary-color: #3498db;
    --secondary-color: #95a5a6;
    --accent-color: #e74c3c;
    --success-color: #27ae60;
    --warning-color: #f39c12;
    --info-color: #17a2b8;
    --light-color: #2d2d2d;
    --dark-color: #1a1a1a;
    
    /* Text Colors - Dark Theme */
    --text-color: #ffffff;
    --text-muted: #b0b0b0;
    --text-light: #ffffff;
    --text-dark: #1a1a1a;
    
    /* Background Colors - Dark Theme */
    --background-color: #1a1a1a;
    --background-secondary: #2d2d2d;
    --background-tertiary: #404040;
    --card-background: #2d2d2d;
    --sidebar-background: #1a1a1a;
    --header-background: linear-gradient(135deg, #1a1a1a, #2d2d2d);
    
    /* Border Colors - Dark Theme */
    --border-color: #404040;
    --border-light: #404040;
    --border-dark: #555555;
    
    /* Shadow Colors - Dark Theme */
    --shadow-light: 0 2px 10px rgba(0, 0, 0, 0.3);
    --shadow-medium: 0 4px 20px rgba(0, 0, 0, 0.4);
    --shadow-dark: 0 8px 30px rgba(0, 0, 0, 0.5);
    
    /* Plot Colors - Dark Theme */
    --plot-background: #1a1a1a;
    --plot-grid-color: #404040;
    --plot-text-color: #ffffff;
    --plot-line-color: #3498db;
    --plot-accent-color: #e74c3c;
}

/* Auto Theme (System Preference) */
[data-theme="auto"] {
    /* Use CSS custom properties that respond to system preference */
    --primary-color: #3498db;
    --secondary-color: #95a5a6;
    --accent-color: #e74c3c;
    --success-color: #27ae60;
    --warning-color: #f39c12;
    --info-color: #17a2b8;
    
    /* System-aware colors */
    --text-color: light-dark(#2c3e50, #ffffff);
    --text-muted: light-dark(#7f8c8d, #b0b0b0);
    --background-color: light-dark(#ffffff, #1a1a1a);
    --background-secondary: light-dark(#f8f9fa, #2d2d2d);
    --background-tertiary: light-dark(#e9ecef, #404040);
    --card-background: light-dark(#ffffff, #2d2d2d);
    --sidebar-background: #2c3e50;
    --header-background: linear-gradient(135deg, #2c3e50, #3498db);
    --border-color: light-dark(#bdc3c7, #404040);
    --border-light: light-dark(#ecf0f1, #404040);
    --border-dark: light-dark(#404040, #555555);
    --shadow-light: light-dark(0 2px 10px rgba(0, 0, 0, 0.1), 0 2px 10px rgba(0, 0, 0, 0.3));
    --shadow-medium: light-dark(0 4px 20px rgba(0, 0, 0, 0.15), 0 4px 20px rgba(0, 0, 0, 0.4));
    --shadow-dark: light-dark(0 8px 30px rgba(0, 0, 0, 0.2), 0 8px 30px rgba(0, 0, 0, 0.5));
    --plot-background: light-dark(#ffffff, #1a1a1a);
    --plot-grid-color: light-dark(#e0e0e0, #404040);
    --plot-text-color: light-dark(#2c3e50, #ffffff);
    --plot-line-color: #3498db;
    --plot-accent-color: #e74c3c;
}

/* Theme-specific component styles */
[data-theme="dark"] .card,
[data-theme="auto"] .card {
    background-color: var(--card-background);
    border-color: var(--border-color);
    color: var(--text-color);
}

[data-theme="dark"] .form-control,
[data-theme="dark"] .form-select,
[data-theme="auto"] .form-control,
[data-theme="auto"] .form-select {
    background-color: var(--card-background);
    color: var(--text-color);
    border-color: var(--border-color);
}

[data-theme="dark"] .form-control:focus,
[data-theme="dark"] .form-select:focus,
[data-theme="auto"] .form-control:focus,
[data-theme="auto"] .form-select:focus {
    background-color: var(--card-background);
    color: var(--text-color);
    border-color: var(--secondary-color);
    box-shadow: 0 0 0 0.2rem rgba(52, 152, 219, 0.25);
}

/* Dropdown styling for dark theme */
[data-theme="dark"] .Select-control,
[data-theme="auto"] .Select-control {
    background-color: var(--card-background) !important;
    border-color: var(--border-color) !important;
    color: var(--text-color) !important;
}

[data-theme="dark"] .Select-control:hover,
[data-theme="auto"] .Select-control:hover {
    border-color: var(--secondary-color) !important;
}

[data-theme="dark"] .Select-menu-outer,
[data-theme="auto"] .Select-menu-outer {
    background-color: var(--card-background) !important;
    border-color: var(--border-color) !important;
    box-shadow: var(--shadow-medium) !important;
}

[data-theme="dark"] .Select-option,
[data-theme="auto"] .Select-option {
    background-color: var(--card-background) !important;
    color: var(--text-color) !important;
}

[data-theme="dark"] .Select-option:hover,
[data-theme="auto"] .Select-option:hover {
    background-color: var(--background-secondary) !important;
    color: var(--text-color) !important;
}

[data-theme="dark"] .Select-option.is-selected,
[data-theme="auto"] .Select-option.is-selected {
    background-color: var(--secondary-color) !important;
    color: var(--text-light) !important;
}

[data-theme="dark"] .Select-placeholder,
[data-theme="auto"] .Select-placeholder {
    color: var(--text-muted) !important;
}

[data-theme="dark"] .Select-value-label,
[data-theme="auto"] .Select-value-label {
    color: var(--text-color) !important;
}

[data-theme="dark"] .Select-arrow-zone,
[data-theme="auto"] .Select-arrow-zone {
    color: var(--text-color) !important;
}

/* Button styling for dark theme */
[data-theme="dark"] .btn,
[data-theme="auto"] .btn {
    color: var(--text-color);
}

[data-theme="dark"] .btn-primary,
[data-theme="auto"] .btn-primary {
    background-color: var(--secondary-color);
    border-color: var(--secondary-color);
    color: var(--text-light);
}

[data-theme="dark"] .btn-primary:hover,
[data-theme="auto"] .btn-primary:hover {
    background-color: #2980b9;
    border-color: #2980b9;
}

[data-theme="dark"] .btn-secondary,
[data-theme="auto"] .btn-secondary {
    background-color: var(--background-secondary);
    border-color: var(--border-color);
    color: var(--text-color);
}

[data-theme="dark"] .btn-secondary:hover,
[data-theme="auto"] .btn-secondary:hover {
    background-color: var(--background-tertiary);
    border-color: var(--border-dark);
}

[data-theme="dark"] .btn-outline-primary,
[data-theme="auto"] .btn-outline-primary {
    color: var(--secondary-color);
    border-color: var(--secondary-color);
}

[data-theme="dark"] .btn-outline-primary:hover,
[data-theme="auto"] .btn-outline-primary:hover {
    background-color: var(--secondary-color);
    border-color: var(--secondary-color);
    color: var(--text-light);
}

[data-theme="dark"] .btn-outline-secondary,
[data-theme="auto"] .btn-outline-secondary {
    color: var(--text-color);
    border-color: var(--border-color);
}

[data-theme="dark"] .btn-outline-secondary:hover,
[data-theme="auto"] .btn-outline-secondary:hover {
    background-color: var(--background-secondary);
    border-color: var(--border-dark);
    color: var(--text-color);
}

/* Table styling for dark theme */
[data-theme="dark"] .table,
[data-theme="auto"] .table {
    color: var(--text-color);
    background-color: var(--card-background);
}

[data-theme="dark"] .table-striped > tbody > tr:nth-of-type(odd) > td,
[data-theme="dark"] .table-striped > tbody > tr:nth-of-type(odd) > th,
[data-theme="auto"] .table-striped > tbody > tr:nth-of-type(odd) > td,
[data-theme="auto"] .table-striped > tbody > tr:nth-of-type(odd) > th {
    background-color: var(--background-secondary);
}

[data-theme="dark"] .table-hover > tbody > tr:hover > td,
[data-theme="dark"] .table-hover > tbody > tr:hover > th,
[data-theme="auto"] .table-hover > tbody > tr:hover > td,
[data-theme="auto"] .table-hover > tbody > tr:hover > th {
    background-color: var(--background-tertiary);
}

/* Modal styling for dark theme */
[data-theme="dark"] .modal-content,
[data-theme="auto"] .modal-content {
    background-color: var(--card-background);
    border-color: var(--border-color);
    color: var(--text-color);
}

[data-theme="dark"] .modal-header,
[data-theme="auto"] .modal-header {
    background-color: var(--background-secondary);
    border-bottom-color: var(--border-color);
    color: var(--text-color);
}

[data-theme="dark"] .modal-footer,
[data-theme="auto"] .modal-footer {
    background-color: var(--background-secondary);
    border-top-color: var(--border-color);
}

/* Alert styling for dark theme */
[data-theme="dark"] .alert,
[data-theme="auto"] .alert {
    background-color: var(--background-secondary);
    border-color: var(--border-color);
    color: var(--text-color);
}

[data-theme="dark"] .alert-primary,
[data-theme="auto"] .alert-primary {
    background-color: rgba(52, 152, 219, 0.1);
    border-color: var(--secondary-color);
    color: var(--secondary-color);
}

[data-theme="dark"] .alert-success,
[data-theme="auto"] .alert-success {
    background-color: rgba(39, 174, 96, 0.1);
    border-color: var(--success-color);
    color: var(--success-color);
}

[data-theme="dark"] .alert-warning,
[data-theme="auto"] .alert-warning {
    background-color: rgba(243, 156, 18, 0.1);
    border-color: var(--warning-color);
    color: var(--warning-color);
}

[data-theme="dark"] .alert-danger,
[data-theme="auto"] .alert-danger {
    background-color: rgba(231, 76, 60, 0.1);
    border-color: var(--accent-color);
    color: var(--accent-color);
}

/* Progress bar styling for dark theme */
[data-theme="dark"] .progress,
[data-theme="auto"] .progress {
    background-color: var(--background-secondary);
}

[data-theme="dark"] .progress-bar,
[data-theme="auto"] .progress-bar {
    background-color: var(--secondary-color);
}

/* Badge styling for dark theme */
[data-theme="dark"] .badge,
[data-theme="auto"] .badge {
    background-color: var(--secondary-color);
    color: var(--text-light);
}

/* List group styling for dark theme */
[data-theme="dark"] .list-group-item,
[data-theme="auto"] .list-group-item {
    background-color: var(--card-background);
    border-color: var(--border-color);
    color: var(--text-color);
}

[data-theme="dark"] .list-group-item:hover,
[data-theme="auto"] .list-group-item:hover {
    background-color: var(--background-secondary);
}

[data-theme="dark"] .list-group-item.active,
[data-theme="auto"] .list-group-item.active {
    background-color: var(--secondary-color);
    border-color: var(--secondary-color);
    color: var(--text-light);
}

/* Nav styling for dark theme */
[data-theme="dark"] .nav-link,
[data-theme="auto"] .nav-link {
    color: var(--text-color);
}

[data-theme="dark"] .nav-link:hover,
[data-theme="auto"] .nav-link:hover {
    color: var(--secondary-color);
}

[data-theme="dark"] .nav-link.active,
[data-theme="auto"] .nav-link.active {
    color: var(--secondary-color);
}

/* Pagination styling for dark theme */
[data-theme="dark"] .page-link,
[data-theme="auto"] .page-link {
    background-color: var(--card-background);
    border-color: var(--border-color);
    color: var(--text-color);
}

[data-theme="dark"] .page-link:hover,
[data-theme="auto"] .page-link:hover {
    background-color: var(--background-secondary);
    border-color: var(--border-dark);
    color: var(--text-color);
}

[data-theme="dark"] .page-item.active .page-link,
[data-theme="auto"] .page-item.active .page-link {
    background-color: var(--secondary-color);
    border-color: var(--secondary-color);
    color: var(--text-light);
}

/* Breadcrumb styling for dark theme */
[data-theme="dark"] .breadcrumb,
[data-theme="auto"] .breadcrumb {
    background-color: var(--background-secondary);
}

[data-theme="dark"] .breadcrumb-item a,
[data-theme="auto"] .breadcrumb-item a {
    color: var(--secondary-color);
}

[data-theme="dark"] .breadcrumb-item.active,
[data-theme="auto"] .breadcrumb-item.active {
    color: var(--text-muted);
}

/* Tooltip styling for dark theme */
[data-theme="dark"] .tooltip,
[data-theme="auto"] .tooltip {
    background-color: var(--background-tertiary);
    color: var(--text-color);
}

[data-theme="dark"] .tooltip .tooltip-inner,
[data-theme="auto"] .tooltip .tooltip-inner {
    background-color: var(--background-tertiary);
    color: var(--text-color);
}

/* Popover styling for dark theme */
[data-theme="dark"] .popover,
[data-theme="auto"] .popover {
    background-color: var(--card-background);
    border-color: var(--border-color);
    color: var(--text-color);
}

[data-theme="dark"] .popover-header,
[data-theme="auto"] .popover-header {
    background-color: var(--background-secondary);
    border-bottom-color: var(--border-color);
    color: var(--text-color);
}

/* Accordion styling for dark theme */
[data-theme="dark"] .accordion-item,
[data-theme="auto"] .accordion-item {
    background-color: var(--card-background);
    border-color: var(--border-color);
}

[data-theme="dark"] .accordion-header,
[data-theme="auto"] .accordion-header {
    background-color: var(--background-secondary);
}

[data-theme="dark"] .accordion-button,
[data-theme="auto"] .accordion-button {
    background-color: var(--background-secondary);
    color: var(--text-color);
}

[data-theme="dark"] .accordion-button:not(.collapsed),
[data-theme="auto"] .accordion-button:not(.collapsed) {
    background-color: var(--background-tertiary);
    color: var(--text-color);
}

[data-theme="dark"] .accordion-body,
[data-theme="auto"] .accordion-body {
    background-color: var(--card-background);
    color: var(--text-color);
}

/* Spinner styling for dark theme */
[data-theme="dark"] .spinner-border,
[data-theme="auto"] .spinner-border {
    color: var(--secondary-color);
}

[data-theme="dark"] .spinner-grow,
[data-theme="auto"] .spinner-grow {
    background-color: var(--secondary-color);
}

/* Close button styling for dark theme */
[data-theme="dark"] .btn-close,
[data-theme="auto"] .btn-close {
    filter: invert(1);
}

/* Input group styling for dark theme */
[data-theme="dark"] .input-group-text,
[data-theme="auto"] .input-group-text {
    background-color: var(--background-secondary);
    border-color: var(--border-color);
    color: var(--text-color);
}

/* Custom scrollbar for dark theme */
[data-theme="dark"] ::-webkit-scrollbar,
[data-theme="auto"] ::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

[data-theme="dark"] ::-webkit-scrollbar-track,
[data-theme="auto"] ::-webkit-scrollbar-track {
    background: var(--background-secondary);
}

[data-theme="dark"] ::-webkit-scrollbar-thumb,
[data-theme="auto"] ::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 4px;
}

[data-theme="dark"] ::-webkit-scrollbar-thumb:hover,
[data-theme="auto"] ::-webkit-scrollbar-thumb:hover {
    background: var(--border-dark);
}

/* Ensure all text elements respect theme */
[data-theme="dark"] h1, [data-theme="dark"] h2, [data-theme="dark"] h3, [data-theme="dark"] h4, [data-theme="dark"] h5, [data-theme="dark"] h6,
[data-theme="auto"] h1, [data-theme="auto"] h2, [data-theme="auto"] h3, [data-theme="auto"] h4, [data-theme="auto"] h5, [data-theme="auto"] h6 {
    color: var(--text-color);
}

[data-theme="dark"] p, [data-theme="dark"] span, [data-theme="dark"] div, [data-theme="dark"] label,
[data-theme="auto"] p, [data-theme="auto"] span, [data-theme="auto"] div, [data-theme="auto"] label {
    color: var(--text-color);
}

[data-theme="dark"] .text-muted,
[data-theme="auto"] .text-muted {
    color: var(--text-muted) !important;
}

[data-theme="dark"] .text-primary,
[data-theme="auto"] .text-primary {
    color: var(--secondary-color) !important;
}

[data-theme="dark"] .text-success,
[data-theme="auto"] .text-success {
    color: var(--success-color) !important;
}

[data-theme="dark"] .text-warning,
[data-theme="auto"] .text-warning {
    color: var(--warning-color) !important;
}

[data-theme="dark"] .text-danger,
[data-theme="auto"] .text-danger {
    color: var(--accent-color) !important;
}

[data-theme="dark"] .text-info,
[data-theme="auto"] .text-info {
    color: var(--info-color) !important;
}

/* Dash-specific component styling for dark theme */
[data-theme="dark"] .dash-dropdown,
[data-theme="auto"] .dash-dropdown {
    background-color: var(--card-background);
    color: var(--text-color);
}

[data-theme="dark"] .dash-dropdown .Select-control,
[data-theme="auto"] .dash-dropdown .Select-control {
    background-color: var(--card-background) !important;
    border-color: var(--border-color) !important;
    color: var(--text-color) !important;
}

[data-theme="dark"] .dash-dropdown .Select-menu-outer,
[data-theme="auto"] .dash-dropdown .Select-menu-outer {
    background-color: var(--card-background) !important;
    border-color: var(--border-color) !important;
    box-shadow: var(--shadow-medium) !important;
}

[data-theme="dark"] .dash-dropdown .Select-option,
[data-theme="auto"] .dash-dropdown .Select-option {
    background-color: var(--card-background) !important;
    color: var(--text-color) !important;
}

[data-theme="dark"] .dash-dropdown .Select-option:hover,
[data-theme="auto"] .dash-dropdown .Select-option:hover {
    background-color: var(--background-secondary) !important;
    color: var(--text-color) !important;
}

[data-theme="dark"] .dash-dropdown .Select-option.is-selected,
[data-theme="auto"] .dash-dropdown .Select-option.is-selected {
    background-color: var(--secondary-color) !important;
    color: var(--text-light) !important;
}

/* Dash upload component styling */
[data-theme="dark"] .dash-uploader .dash-uploader-container,
[data-theme="auto"] .dash-uploader .dash-uploader-container {
    background-color: var(--background-secondary);
    border-color: var(--border-color);
    color: var(--text-color);
}

[data-theme="dark"] .dash-uploader .dash-uploader-container:hover,
[data-theme="auto"] .dash-uploader .dash-uploader-container:hover {
    background-color: var(--background-tertiary);
    border-color: var(--secondary-color);
}

/* Dash slider styling */
[data-theme="dark"] .dash-slider .rc-slider-track,
[data-theme="auto"] .dash-slider .rc-slider-track {
    background-color: var(--secondary-color);
}

[data-theme="dark"] .dash-slider .rc-slider-handle,
[data-theme="auto"] .dash-slider .rc-slider-handle {
    border-color: var(--secondary-color);
    background-color: var(--secondary-color);
}

[data-theme="dark"] .dash-slider .rc-slider-rail,
[data-theme="auto"] .dash-slider .rc-slider-rail {
    background-color: var(--background-secondary);
}

/* Dash tabs styling */
[data-theme="dark"] .dash-tabs .tab-content,
[data-theme="auto"] .dash-tabs .tab-content {
    background-color: var(--card-background);
    color: var(--text-color);
}

[data-theme="dark"] .dash-tabs .nav-tabs .nav-link,
[data-theme="auto"] .dash-tabs .nav-tabs .nav-link {
    background-color: var(--background-secondary);
    border-color: var(--border-color);
    color: var(--text-color);
}

[data-theme="dark"] .dash-tabs .nav-tabs .nav-link.active,
[data-theme="auto"] .dash-tabs .nav-tabs .nav-link.active {
    background-color: var(--card-background);
    border-color: var(--border-color);
    color: var(--text-color);
}

/* Dash checklist styling */
[data-theme="dark"] .dash-checklist .form-check-input,
[data-theme="auto"] .dash-checklist .form-check-input {
    background-color: var(--card-background);
    border-color: var(--border-color);
}

[data-theme="dark"] .dash-checklist .form-check-input:checked,
[data-theme="auto"] .dash-checklist .form-check-input:checked {
    background-color: var(--secondary-color);
    border-color: var(--secondary-color);
}

[data-theme="dark"] .dash-checklist .form-check-label,
[data-theme="auto"] .dash-checklist .form-check-label {
    color: var(--text-color);
}

/* Dash radio items styling */
[data-theme="dark"] .dash-radioitems .form-check-input,
[data-theme="auto"] .dash-radioitems .form-check-input {
    background-color: var(--card-background);
    border-color: var(--border-color);
}

[data-theme="dark"] .dash-radioitems .form-check-input:checked,
[data-theme="auto"] .dash-radioitems .form-check-input:checked {
    background-color: var(--secondary-color);
    border-color: var(--secondary-color);
}

[data-theme="dark"] .dash-radioitems .form-check-label,
[data-theme="auto"] .dash-radioitems .form-check-label {
    color: var(--text-color);
}

/* Dash date picker styling */
[data-theme="dark"] .dash-datepicker .form-control,
[data-theme="auto"] .dash-datepicker .form-control {
    background-color: var(--card-background);
    border-color: var(--border-color);
    color: var(--text-color);
}

/* Dash textarea styling */
[data-theme="dark"] .dash-textarea textarea,
[data-theme="auto"] .dash-textarea textarea {
    background-color: var(--card-background);
    border-color: var(--border-color);
    color: var(--text-color);
}

/* Dash input styling */
[data-theme="dark"] .dash-input input,
[data-theme="auto"] .dash-input input {
    background-color: var(--card-background);
    border-color: var(--border-color);
    color: var(--text-color);
}

/* Dash number input styling */
[data-theme="dark"] .dash-numberinput input,
[data-theme="auto"] .dash-numberinput input {
    background-color: var(--card-background);
    border-color: var(--border-color);
    color: var(--text-color);
}

/* Dash range slider styling */
[data-theme="dark"] .dash-rangeslider .rc-slider-track,
[data-theme="auto"] .dash-rangeslider .rc-slider-track {
    background-color: var(--secondary-color);
}

[data-theme="dark"] .dash-rangeslider .rc-slider-handle,
[data-theme="auto"] .dash-rangeslider .rc-slider-handle {
    border-color: var(--secondary-color);
    background-color: var(--secondary-color);
}

[data-theme="dark"] .dash-rangeslider .rc-slider-rail,
[data-theme="auto"] .dash-rangeslider .rc-slider-rail {
    background-color: var(--background-secondary);
}

/* Dash interval styling */
[data-theme="dark"] .dash-interval,
[data-theme="auto"] .dash-interval {
    background-color: transparent;
}

/* Dash store styling */
[data-theme="dark"] .dash-store,
[data-theme="auto"] .dash-store {
    background-color: transparent;
}

/* Dash location styling */
[data-theme="dark"] .dash-location,
[data-theme="auto"] .dash-location {
    background-color: transparent;
}

[data-theme="dark"] .data-preview,
[data-theme="auto"] .data-preview {
    background-color: var(--background-secondary);
    color: var(--text-color);
}

[data-theme="dark"] .data-preview th,
[data-theme="auto"] .data-preview th {
    background-color: var(--primary-color);
    color: var(--text-light);
}

[data-theme="dark"] .data-preview td,
[data-theme="auto"] .data-preview td {
    border-bottom-color: var(--border-color);
}

[data-theme="dark"] .control-section,
[data-theme="auto"] .control-section {
    background-color: var(--background-secondary);
    color: var(--text-color);
}

[data-theme="dark"] .upload-area,
[data-theme="auto"] .upload-area {
    background-color: var(--background-secondary);
    border-color: var(--border-color);
    color: var(--text-color);
}

[data-theme="dark"] .upload-area:hover,
[data-theme="auto"] .upload-area:hover {
    background-color: var(--background-tertiary);
    border-color: var(--secondary-color);
}

[data-theme="dark"] .dash-uploader,
[data-theme="auto"] .dash-uploader {
    background-color: var(--background-secondary);
    border-color: var(--border-color);
    color: var(--text-color);
}

[data-theme="dark"] .dash-uploader:hover,
[data-theme="auto"] .dash-uploader:hover {
    background-color: var(--background-tertiary);
    border-color: var(--secondary-color);
}

/* Utility Classes */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.mb-1 { margin-bottom: 0.25rem; }
.mb-2 { margin-bottom: 0.5rem; }
.mb-3 { margin-bottom: 1rem; }
.mb-4 { margin-bottom: 1.5rem; }

.mt-1 { margin-top: 0.25rem; }
.mt-2 { margin-top: 0.5rem; }
.mt-3 { margin-top: 1rem; }
.mt-4 { margin-top: 1.5rem; }

.p-1 { padding: 0.25rem; }
.p-2 { padding: 0.5rem; }
.p-3 { padding: 1rem; }
.p-4 { padding: 1.5rem; }

/* 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-left {
    animation: slideInLeft 0.5s ease-out;
}

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

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

::-webkit-scrollbar-track {
    background: transparent;
}

::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.3);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: rgba(255, 255, 255, 0.5);
}

/* Sidebar specific scrollbar */
.sidebar::-webkit-scrollbar {
    width: 6px;
}

.sidebar::-webkit-scrollbar-track {
    background: transparent;
}

.sidebar::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.3);
    border-radius: 3px;
}

.sidebar::-webkit-scrollbar-thumb:hover {
    background: rgba(255, 255, 255, 0.5);
}

/* Print Styles */
@media print {
    .sidebar,
    .header,
    .btn,
    .control-section {
        display: none !important;
    }
    
    .main-content {
        margin: 0;
        padding: 0;
    }
    
    .card {
        box-shadow: none;
        border: 1px solid #000;
    }
}

/* Badge Styles for Insights */
.badge {
    font-size: 0.75rem;
    font-weight: 500;
    padding: 0.25rem 0.5rem;
    border-radius: 0.375rem;
    text-decoration: none;
    display: inline-block;
    line-height: 1;
    white-space: nowrap;
    vertical-align: baseline;
    text-align: center;
}

.badge.bg-primary {
    background-color: #007bff !important;
    color: white !important;
}

.badge.bg-secondary {
    background-color: #6c757d !important;
    color: white !important;
}

.badge.bg-success {
    background-color: #28a745 !important;
    color: white !important;
}

.badge.bg-danger {
    background-color: #dc3545 !important;
    color: white !important;
}

.badge.bg-warning {
    background-color: #ffc107 !important;
    color: #212529 !important;
}

.badge.bg-info {
    background-color: #17a2b8 !important;
    color: white !important;
}

/* Gap utility for flexbox */
.gap-2 {
    gap: 0.5rem;
}

/* Flexbox utilities */
.d-flex {
    display: flex;
}

.flex-wrap {
    flex-wrap: wrap;
}

/* Frequency Domain Analysis Top Container Styling */
.freq-top-container .card {
    border: 1px solid #e9ecef;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    border-radius: 8px;
}

.freq-top-container .card-body {
    padding: 1.25rem;
}

.freq-top-container .form-label {
    font-size: 0.875rem;
    font-weight: 600;
    color: #495057;
    margin-bottom: 0.5rem;
}

.freq-top-container .btn {
    border-radius: 6px;
    font-weight: 500;
}

.freq-top-container .btn-primary {
    background: linear-gradient(135deg, #007bff 0%, #0056b3 100%);
    border: none;
    box-shadow: 0 2px 4px rgba(0,123,255,0.3);
}

.freq-top-container .btn-primary:hover {
    background: linear-gradient(135deg, #0056b3 0%, #004085 100%);
    transform: translateY(-1px);
    box-shadow: 0 4px 8px rgba(0,123,255,0.4);
}

.freq-top-container .btn-secondary {
    background: linear-gradient(135deg, #6c757d 0%, #545b62 100%);
    border: none;
    font-size: 0.8rem;
    padding: 0.375rem 0.75rem;
}

.freq-top-container .btn-secondary:hover {
    background: linear-gradient(135deg, #545b62 0%, #3d4449 100%);
    transform: translateY(-1px);
}

.freq-top-container .form-control,
.freq-top-container .form-select {
    border-radius: 6px;
    border: 1px solid #ced4da;
    font-size: 0.875rem;
}

.freq-top-container .form-control:focus,
.freq-top-container .form-select:focus {
    border-color: #007bff;
    box-shadow: 0 0 0 0.2rem rgba(0,123,255,0.25);
}

.freq-top-container .range-slider {
    margin: 0.5rem 0;
}

/* Quick Navigation Button Group */
.quick-nav-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: 0.25rem;
}

.quick-nav-buttons .btn {
    flex: 1;
    min-width: 60px;
}

/* Time Range Slider Styling */
.freq-top-container .rc-slider {
    margin: 0.5rem 0;
}

.freq-top-container .rc-slider-track {
    background-color: #007bff;
}

.freq-top-container .rc-slider-handle {
    border: 2px solid #007bff;
    background-color: white;
    box-shadow: 0 2px 4px rgba(0,0,0,0.2);
}

.freq-top-container .rc-slider-handle:hover {
    transform: scale(1.1);
    box-shadow: 0 4px 8px rgba(0,0,0,0.3);
}

/* Responsive adjustments */
@media (max-width: 768px) {
    .freq-top-container .col-md-3 {
        margin-bottom: 1rem;
    }
    
    .quick-nav-buttons {
        justify-content: center;
    }
    
    .quick-nav-buttons .btn {
        min-width: 50px;
        font-size: 0.75rem;
    }
}

/* Sidebar Icons (collapsed view) */
.sidebar-icons {
    display: none;
    padding: 20px 10px;
    text-align: center;
}

.sidebar.sidebar-collapsed .sidebar-icons {
    display: block;
    opacity: 1;
    pointer-events: auto;
    visibility: visible;
}

.sidebar.sidebar-expanded .sidebar-icons {
    display: none;
}

.nav-icon {
    display: block;
    padding: 15px 10px;
    font-size: 24px;
    text-decoration: none;
    border-radius: 6px;
    transition: all 0.2s ease;
    margin-bottom: 10px;
}

.nav-icon:hover {
    background-color: rgba(255, 255, 255, 0.1);
    color: white !important;
    text-decoration: none;
}

.nav-icon:focus {
    outline: none;
    background-color: rgba(255, 255, 255, 0.2);
    color: white !important;
}

/* Form Controls Z-Index Fixes */
.freq-top-container {
    position: relative;
    z-index: 10;
}

/* Analysis type dropdown specific styling - simplified */
#freq-analysis-type {
    position: relative;
    z-index: 10;
}

/* Plot Container Spacing */
.dcc-graph {
    margin-bottom: 20px;
}

/* Frequency Analysis Page Specific Styles */
.freq-main-plot,
.freq-psd-plot,
.freq-spectrogram-plot {
    margin-bottom: 30px;
}

/* Ensure proper spacing between subplots */
.js-plotly-plot .plotly .main-svg {
    overflow: visible;
}

/* Fix for subplot title overlap */
.js-plotly-plot .plotly .gtitle {
    margin-bottom: 20px;
}

/* Ensure y-axis labels don't overlap */
.js-plotly-plot .plotly .ytick {
    margin-right: 10px;
}

/* Card spacing improvements */
.card {
    margin-bottom: 25px;
}

.card-body {
    padding: 20px;
}

/* Analysis controls positioning */
.analysis-controls {
    position: relative;
    z-index: 10;
}

/* Collapsed Sidebar Improvements */
.sidebar.sidebar-collapsed {
    width: var(--sidebar-collapsed-width);
    overflow: hidden;
    text-align: center;
}

.sidebar.sidebar-collapsed .sidebar-toggle {
    right: 15px;
    top: 15px;
    position: absolute;
    z-index: 1001;
    background-color: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.sidebar.sidebar-collapsed .sidebar-toggle:hover {
    background-color: rgba(255, 255, 255, 0.2);
}

/* Icon positioning in collapsed sidebar */
.sidebar.sidebar-collapsed .sidebar-icons {
    padding-top: 80px; /* Space for toggle button */
}

.sidebar.sidebar-collapsed .nav-icon {
    margin: 15px auto;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    transition: all 0.3s ease;
}

.sidebar.sidebar-collapsed .nav-icon:hover {
    background-color: rgba(255, 255, 255, 0.2);
    transform: scale(1.1);
}

/* Frequency Analysis Specific Improvements */
.freq-top-container {
    background: white;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    padding: 20px;
    margin-bottom: 25px;
    position: relative;
    z-index: 10;
}

/* Ensure the frequency analysis dropdown appears above plot containers */
.freq-top-container .dcc-dropdown {
    position: relative;
    z-index: 15;
}

/* Ensure plot containers don't overlap the controls */
.freq-main-plot,
.freq-psd-plot,
.freq-spectrogram-plot {
    position: relative;
    z-index: 5;
}

/* Plot container improvements */
.plot-container {
    margin-bottom: 30px;
    position: relative;
}

/* Ensure subplot titles don't overlap */
.subplot-title {
    margin-bottom: 15px;
    font-size: 16px;
    font-weight: 600;
    color: var(--primary-color);
}

/* Y-axis label positioning */
.y-axis-label {
    margin-right: 15px;
    font-weight: 500;
}

/* Plot margins and spacing */
.plot-margins {
    margin: 20px 0;
}

/* Analysis controls container */
.analysis-controls-container {
    position: sticky;
    top: calc(var(--header-height) + 20px);
    z-index: 10;
    background: white;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    padding: 20px;
    margin-bottom: 25px;
}

/* Dropdown Menu Z-Index Fixes - Removed aggressive overrides */
/* The following rules were causing all dropdowns to break, so they're removed */

/* Plot Container Overflow Handling */
.plot-container {
    overflow: visible !important;
}

.dcc-graph {
    overflow: visible !important;
}

.js-plotly-plot {
    overflow: visible !important;
}

.plotly .main-svg {
    overflow: visible !important;
}

/* Ensure plotly plots don't get cut off */
.plotly-graph-div {
    overflow: visible !important;
}

/* Fix for subplot spacing */
.plotly .subplot {
    margin: 10px 0;
}

/* Ensure proper spacing between plot elements */
.plotly .gtitle {
    margin-bottom: 15px !important;
}

.plotly .xtick,
.plotly .ytick {
    margin: 5px 0;
}

/* Upload Progress Section Specific Styles */
.upload-progress-section {
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
    border: 1px solid #dee2e6;
    border-radius: 12px;
    padding: 1.5rem;
    margin: 1rem 0;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.15);
    transition: all 0.3s ease;
    animation: slideInDown 0.5s ease-out;
    position: relative;
    z-index: 1000;
}

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

.upload-progress-section:hover {
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.15);
    transform: translateY(-2px);
}

/* File Path Loading Indicator */
.file-path-loading {
    background: linear-gradient(135deg, #e3f2fd 0%, #bbdefb 100%);
    border: 1px solid #90caf9;
    border-radius: 8px;
    padding: 0.75rem;
    margin-top: 0.5rem;
    animation: fadeInUp 0.4s ease-out;
}

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

/* Enhanced Button States */
.btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none !important;
}

.btn:disabled:hover {
    transform: none !important;
    box-shadow: none !important;
}

/* Loading Button Animation */
.btn.loading {
    position: relative;
    color: transparent;
    pointer-events: none;
    overflow: hidden;
}

.btn.loading::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 16px;
    height: 16px;
    margin: -8px 0 0 -8px;
    border: 2px solid transparent;
    border-top: 2px solid currentColor;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

/* Progress Step Enhancements */
.progress-step {
    display: flex;
    align-items: center;
    margin-bottom: 0.75rem;
    padding: 0.75rem;
    border-radius: 8px;
    transition: all 0.3s ease;
    border-left: 3px solid transparent;
}

.progress-step:hover {
    background-color: rgba(255, 255, 255, 0.7);
    transform: translateX(8px);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.progress-step.completed {
    color: var(--success-color);
    border-left-color: var(--success-color);
    background-color: rgba(39, 174, 96, 0.1);
}

.progress-step.active {
    color: var(--primary-color);
    background-color: rgba(52, 152, 219, 0.15);
    border-left-color: var(--primary-color);
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% {
        background-color: rgba(52, 152, 219, 0.15);
    }
    50% {
        background-color: rgba(52, 152, 219, 0.25);
    }
}

.progress-step.pending {
    color: var(--text-muted);
    border-left-color: var(--text-muted);
    background-color: rgba(127, 140, 141, 0.1);
}