/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* Google Analytics Color Palette */
    --primary-blue: #1a73e8;
    --primary-blue-hover: #1557b0;
    --primary-blue-light: #e8f0fe;
    --secondary-blue: #4285f4;
    --success-green: #137333;
    --success-green-light: #e6f4ea;
    --warning-orange: #ea8600;
    --warning-orange-light: #fef7e0;
    --error-red: #d93025;
    --error-red-light: #fce8e6;
    
    /* Neutral Colors */
    --white: #ffffff;
    --gray-50: #f8f9fa;
    --gray-100: #f1f3f4;
    --gray-200: #e8eaed;
    --gray-300: #dadce0;
    --gray-400: #bdc1c6;
    --gray-500: #9aa0a6;
    --gray-600: #80868b;
    --gray-700: #5f6368;
    --gray-800: #3c4043;
    --gray-900: #202124;
    
    /* Typography */
    --font-family: 'Google Sans', 'Roboto', -apple-system, BlinkMacSystemFont, 'Segoe UI', Arial, sans-serif;
    --font-size-xs: 11px;
    --font-size-sm: 12px;
    --font-size-base: 14px;
    --font-size-md: 16px;
    --font-size-lg: 18px;
    --font-size-xl: 20px;
    --font-size-2xl: 24px;
    --font-size-3xl: 28px;
    
    /* Spacing */
    --spacing-xs: 4px;
    --spacing-sm: 8px;
    --spacing-md: 12px;
    --spacing-lg: 16px;
    --spacing-xl: 20px;
    --spacing-2xl: 24px;
    --spacing-3xl: 32px;
    --spacing-4xl: 48px;
    
    /* Border Radius */
    --border-radius-sm: 4px;
    --border-radius-md: 8px;
    --border-radius-lg: 12px;
    --border-radius-xl: 16px;
    
    /* Shadows */
    --shadow-sm: 0 1px 3px 0 rgba(60, 64, 67, 0.3), 0 4px 8px 3px rgba(60, 64, 67, 0.15);
    --shadow-md: 0 2px 6px 2px rgba(60, 64, 67, 0.15), 0 8px 24px 4px rgba(60, 64, 67, 0.15);
    --shadow-lg: 0 4px 16px 6px rgba(60, 64, 67, 0.15), 0 8px 24px 4px rgba(60, 64, 67, 0.15);
    
    /* Transitions */
    --transition-fast: 150ms cubic-bezier(0.4, 0.0, 0.2, 1);
    --transition-medium: 250ms cubic-bezier(0.4, 0.0, 0.2, 1);
    --transition-slow: 350ms cubic-bezier(0.4, 0.0, 0.2, 1);
}

body {
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    line-height: 1.5;
    color: var(--gray-800);
    background-color: var(--gray-50);
    overflow-x: hidden;
}

/* Layout Structure */
.app-layout {
    display: flex;
    min-height: 100vh;
}

/* Sidebar Navigation */
.sidebar {
    width: 280px;
    background: var(--white);
    border-right: 1px solid var(--gray-200);
    flex-shrink: 0;
    position: fixed;
    height: 100vh;
    overflow-y: auto;
    z-index: 100;
    transition: transform var(--transition-medium);
    scrollbar-width: thin;
    scrollbar-color: var(--gray-300) transparent;
}

.sidebar::-webkit-scrollbar {
    width: 6px;
}

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

.sidebar::-webkit-scrollbar-thumb {
    background: var(--gray-300);
    border-radius: 3px;
}

.sidebar::-webkit-scrollbar-thumb:hover {
    background: var(--gray-400);
}

.sidebar-header {
    padding: var(--spacing-2xl) var(--spacing-xl);
    border-bottom: 1px solid var(--gray-200);
}

.sidebar-header h1 {
    font-size: var(--font-size-xl);
    font-weight: 500;
    color: var(--gray-900);
    margin: 0;
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.sidebar-header .logo {
    width: 32px;
    height: 32px;
    background: linear-gradient(135deg, var(--primary-blue), var(--secondary-blue));
    border-radius: var(--border-radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-weight: 600;
    font-size: var(--font-size-lg);
}

.sidebar-nav {
    padding: var(--spacing-lg) 0;
}

.nav-section {
    margin-bottom: var(--spacing-2xl);
}

.nav-section-title {
    font-size: var(--font-size-xs);
    font-weight: 500;
    color: var(--gray-600);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    padding: 0 var(--spacing-xl);
    margin-bottom: var(--spacing-md);
}

.nav-item {
    display: flex;
    align-items: center;
    padding: var(--spacing-md) var(--spacing-xl);
    color: var(--gray-700);
    text-decoration: none;
    transition: all var(--transition-fast);
    border-radius: 0;
    margin: 0 var(--spacing-md);
    gap: var(--spacing-md);
    font-size: var(--font-size-base);
    font-weight: 400;
    cursor: pointer;
    border: none;
    background: none;
    width: calc(100% - 24px);
    text-align: left;
}

.nav-item:hover {
    background-color: var(--gray-100);
    color: var(--gray-900);
    border-radius: var(--border-radius-md);
}

.nav-item.active {
    background-color: var(--primary-blue-light);
    color: var(--primary-blue);
    font-weight: 500;
    border-radius: var(--border-radius-md);
}

.nav-item .icon {
    width: 20px;
    height: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--font-size-md);
}

/* Main Content Area */
.main-content {
    flex: 1;
    margin-left: 280px;
    background: var(--gray-50);
    min-height: 100vh;
}

.top-bar {
    background: var(--white);
    border-bottom: 1px solid var(--gray-200);
    padding: 0 var(--spacing-3xl);
    height: 64px;
    display: flex;
    flex-direction: row; /* Explicitly set row for desktop */
    align-items: center;
    justify-content: space-between;
    position: sticky;
    top: 0;
    z-index: 50;
}

.top-bar-title {
    font-size: var(--font-size-2xl);
    font-weight: 400;
    color: var(--gray-900);
    margin: 0;
}

/* Top bar actions - Desktop only */
.top-bar-actions {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
}

/* Hide top-bar-actions on mobile - replaced by FAB */
@media (max-width: 768px) {
    .top-bar-actions {
        display: none !important;
    }
}

.content-area {
    padding: var(--spacing-3xl);
    max-width: 1400px;
    margin: 0 auto;
}

/* Page Content Containers */
.page-content {
    display: none;
}

.page-content.active {
    display: block;
    animation: fadeInUp 0.3s ease-out;
}

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

/* Cards */
.card {
    background: var(--white);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-sm);
    overflow: hidden;
    transition: box-shadow var(--transition-medium);
}

.card:hover {
    box-shadow: var(--shadow-md);
}

.card-header {
    padding: var(--spacing-2xl) var(--spacing-2xl) var(--spacing-lg);
    border-bottom: 1px solid var(--gray-200);
}

.card-title {
    font-size: var(--font-size-lg);
    font-weight: 500;
    color: var(--gray-900);
    margin: 0 0 var(--spacing-xs);
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.card-subtitle {
    font-size: var(--font-size-sm);
    color: var(--gray-600);
    margin: 0;
}

.card-content {
    padding: var(--spacing-2xl);
}

.card-content:first-child {
    padding-top: var(--spacing-2xl);
}

.card-actions {
    padding: var(--spacing-lg) var(--spacing-2xl);
    border-top: 1px solid var(--gray-200);
    background: var(--gray-50);
    display: flex;
    justify-content: flex-end;
    gap: var(--spacing-md);
}

/* Grid Layout */
.grid {
    display: grid;
    gap: var(--spacing-2xl);
}

.grid-1 { grid-template-columns: 1fr; }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

@media (max-width: 1024px) {
    .grid-4 { grid-template-columns: repeat(2, 1fr); }
    .grid-3 { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
    .grid-4,
    .grid-3,
    .grid-2 { grid-template-columns: 1fr; }
}

/* Metric Cards */
.metric-card {
    background: var(--white);
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-2xl);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-medium);
    border: 1px solid var(--gray-200);
}

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

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

.metric-label {
    font-size: var(--font-size-sm);
    color: var(--gray-600);
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.metric-icon {
    width: 24px;
    height: 24px;
    border-radius: var(--border-radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--font-size-sm);
}

.metric-icon.blue { background: var(--primary-blue-light); color: var(--primary-blue); }
.metric-icon.green { background: var(--success-green-light); color: var(--success-green); }
.metric-icon.orange { background: var(--warning-orange-light); color: var(--warning-orange); }
.metric-icon.red { background: var(--error-red-light); color: var(--error-red); }

.metric-value {
    font-size: var(--font-size-3xl);
    font-weight: 400;
    color: var(--gray-900);
    line-height: 1.2;
    margin-bottom: var(--spacing-xs);
}

.metric-change {
    font-size: var(--font-size-sm);
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.metric-change.positive { color: var(--success-green); }
.metric-change.negative { color: var(--error-red); }
.metric-change.neutral { color: var(--gray-600); }

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-md) var(--spacing-xl);
    border-radius: var(--border-radius-md);
    font-size: var(--font-size-base);
    font-weight: 500;
    text-decoration: none;
    border: 1px solid transparent;
    cursor: pointer;
    transition: all var(--transition-fast);
    gap: var(--spacing-sm);
    line-height: 1;
    min-height: 36px;
}

.btn:focus {
    outline: none;
    box-shadow: 0 0 0 2px var(--primary-blue-light);
}

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

.btn-primary:hover {
    background: var(--primary-blue-hover);
    border-color: var(--primary-blue-hover);
    color: var(--white);
}

.btn-secondary {
    background: var(--white);
    color: var(--primary-blue);
    border-color: var(--gray-300);
}

.btn-secondary:hover {
    background: var(--primary-blue-light);
    border-color: var(--primary-blue);
    color: var(--primary-blue);
}

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

.btn-success:hover {
    background: #0f7529;
    border-color: #0f7529;
    color: var(--white);
}

.btn-warning {
    background: var(--warning-orange);
    color: var(--white);
    border-color: var(--warning-orange);
}

.btn-warning:hover {
    background: #d97e00;
    border-color: #d97e00;
    color: var(--white);
}

.btn-danger {
    background: var(--error-red);
    color: var(--white);
    border-color: var(--error-red);
}

.btn-danger:hover {
    background: #c5221f;
    border-color: #c5221f;
    color: var(--white);
}

.btn-sm {
    padding: var(--spacing-sm) var(--spacing-md);
    font-size: var(--font-size-sm);
    min-height: 28px;
}

.btn-lg {
    padding: var(--spacing-lg) var(--spacing-2xl);
    font-size: var(--font-size-md);
    min-height: 44px;
}

.btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    pointer-events: none;
}

/* Form Elements */
.form-group {
    margin-bottom: var(--spacing-xl);
}

.form-label {
    display: block;
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: var(--gray-700);
    margin-bottom: var(--spacing-sm);
}

.form-control {
    width: 100%;
    padding: var(--spacing-md);
    border: 1px solid var(--gray-300);
    border-radius: var(--border-radius-md);
    font-size: var(--font-size-base);
    color: var(--gray-900);
    background: var(--white);
    transition: all var(--transition-fast);
}

.form-control:focus {
    outline: none;
    border-color: var(--primary-blue);
    box-shadow: 0 0 0 2px var(--primary-blue-light);
}

.form-control:hover {
    border-color: var(--gray-400);
}

.form-control::placeholder {
    color: var(--gray-500);
}

/* Input Groups */
.input-group {
    display: flex;
    align-items: center;
    border: 1px solid var(--gray-300);
    border-radius: var(--border-radius-md);
    background: var(--white);
    transition: all var(--transition-fast);
}

.input-group:focus-within {
    border-color: var(--primary-blue);
    box-shadow: 0 0 0 2px var(--primary-blue-light);
}

.input-group .form-control {
    border: none;
    box-shadow: none;
    flex: 1;
}

.input-group .form-control:focus {
    box-shadow: none;
}

.input-group-prepend,
.input-group-append {
    padding: var(--spacing-md);
    background: var(--gray-50);
    border-left: 1px solid var(--gray-300);
    color: var(--gray-600);
    font-size: var(--font-size-sm);
    font-weight: 500;
}

.input-group-prepend {
    border-left: none;
    border-right: 1px solid var(--gray-300);
}

/* Tables */
.table-container {
    background: var(--white);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-sm);
    overflow: hidden;
}

.table {
    width: 100%;
    border-collapse: collapse;
    font-size: var(--font-size-sm);
}

.table th {
    background: var(--gray-50);
    padding: var(--spacing-lg);
    text-align: left;
    font-weight: 500;
    color: var(--gray-700);
    border-bottom: 1px solid var(--gray-200);
    font-size: var(--font-size-xs);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.table td {
    padding: var(--spacing-lg);
    border-bottom: 1px solid var(--gray-200);
    color: var(--gray-800);
    vertical-align: middle;
}

.table tbody tr:hover {
    background: var(--gray-50);
}

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

/* Status and Progress Elements */
.status-badge {
    display: inline-flex;
    align-items: center;
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: var(--border-radius-lg);
    font-size: var(--font-size-xs);
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    gap: var(--spacing-xs);
}

.status-badge.success {
    background: var(--success-green-light);
    color: var(--success-green);
}

.status-badge.warning {
    background: var(--warning-orange-light);
    color: var(--warning-orange);
}

.status-badge.error {
    background: var(--error-red-light);
    color: var(--error-red);
}

.status-badge.info {
    background: var(--primary-blue-light);
    color: var(--primary-blue);
}

.status-badge.neutral {
    background: var(--gray-100);
    color: var(--gray-600);
}

.progress-bar {
    width: 100%;
    height: 8px;
    background: var(--gray-200);
    border-radius: var(--border-radius-sm);
    overflow: hidden;
}

.progress-fill {
    height: 100%;
    background: var(--primary-blue);
    border-radius: var(--border-radius-sm);
    transition: width var(--transition-medium);
}

.progress-fill.success { background: var(--success-green); }
.progress-fill.warning { background: var(--warning-orange); }
.progress-fill.error { background: var(--error-red); }

/* Charts and Data Visualization */
.chart-container {
    position: relative;
    height: 300px;
    margin: var(--spacing-lg) 0;
}

.chart-placeholder {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 100%;
    background: var(--gray-50);
    border: 2px dashed var(--gray-300);
    border-radius: var(--border-radius-md);
    color: var(--gray-500);
    font-size: var(--font-size-base);
}

/* Mobile Navigation */
.mobile-menu-toggle {
    display: none; /* Hidden on desktop, shown on mobile via media queries */
    background: none;
    border: none;
    padding: var(--spacing-md);
    cursor: pointer;
    color: var(--gray-700);
    font-size: var(--font-size-lg);
    border-radius: var(--border-radius-sm);
    transition: all var(--transition-fast);
    -webkit-appearance: none;
    appearance: none;
    outline: none;
    -webkit-tap-highlight-color: transparent;
    touch-action: manipulation;
    line-height: 1;
    text-align: center;
    vertical-align: middle;
    user-select: none;
    -webkit-user-select: none;
}

.mobile-menu-toggle:hover {
    background: var(--gray-100);
    color: var(--primary-blue);
}

.mobile-close-btn {
    display: none;
    background: none;
    border: none;
    font-size: 28px;
    color: var(--gray-500);
    cursor: pointer;
    padding: var(--spacing-sm);
    border-radius: var(--border-radius-sm);
    transition: all var(--transition-fast);
    line-height: 1;
    width: 40px;
    height: 40px;
    align-items: center;
    justify-content: center;
}

.mobile-close-btn:hover {
    background: var(--gray-100);
    color: var(--gray-700);
}

.mobile-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    z-index: 999;
    opacity: 0;
    transition: opacity var(--transition-medium);
}

.mobile-overlay.active {
    opacity: 1;
}

@media (max-width: 768px) {
    .sidebar {
        position: fixed;
        top: 0;
        left: 0;
        height: 100vh;
        transform: translateX(-100%);
        z-index: 1000;
        transition: transform var(--transition-medium) cubic-bezier(0.4, 0, 0.2, 1);
        box-shadow: 0 0 20px rgba(0, 0, 0, 0.1);
    }
    
    .sidebar.open {
        transform: translateX(0);
    }
    
    .sidebar-header {
        display: flex;
        justify-content: space-between;
        align-items: center;
        padding-right: var(--spacing-lg);
    }
    
    .mobile-close-btn {
        display: flex !important;
    }
    
    .main-content {
        margin-left: 0;
        width: 100%;
    }
    
    .mobile-menu-toggle {
        display: block;
    }
    
    .mobile-overlay.active {
        display: block;
    }
    
    /* Mobile top-bar styles moved to consolidated section below */
    
    .content-area {
        padding: var(--spacing-lg);
    }
    
    /* Better mobile card layout */
    .metric-card {
        padding: var(--spacing-lg);
    }
    
    .card {
        margin-bottom: var(--spacing-lg);
    }
    
    /* Mobile table improvements */
    .table-container {
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
    }
    
    .table {
        min-width: 600px;
    }
    
    /* Mobile form improvements */
    .form-control {
        font-size: 16px; /* Prevents zoom on iOS */
    }
    
    .btn {
        min-height: 44px; /* Better touch target */
    }
}

@media (max-width: 480px) {
    /* Mobile top-bar styles moved to consolidated section below */
    
    .content-area {
        padding: var(--spacing-md);
    }
    
    .sidebar-header h1 {
        font-size: var(--font-size-lg);
    }
    
    .nav-item {
        padding: var(--spacing-md) var(--spacing-lg);
        font-size: var(--font-size-sm);
    }
}

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

.text-xs { font-size: var(--font-size-xs); }
.text-sm { font-size: var(--font-size-sm); }
.text-base { font-size: var(--font-size-base); }
.text-lg { font-size: var(--font-size-lg); }
.text-xl { font-size: var(--font-size-xl); }

.font-medium { font-weight: 500; }
.font-semibold { font-weight: 600; }
.font-bold { font-weight: 700; }

.text-gray-500 { color: var(--gray-500); }
.text-gray-600 { color: var(--gray-600); }
.text-gray-700 { color: var(--gray-700); }
.text-gray-800 { color: var(--gray-800); }
.text-gray-900 { color: var(--gray-900); }

.text-primary { color: var(--primary-blue); }
.text-success { color: var(--success-green); }
.text-warning { color: var(--warning-orange); }
.text-danger { color: var(--error-red); }

.bg-primary { background: var(--primary-blue); }
.bg-success { background: var(--success-green); }
.bg-warning { background: var(--warning-orange); }
.bg-danger { background: var(--error-red); }

.mb-0 { margin-bottom: 0; }
.mb-1 { margin-bottom: var(--spacing-xs); }
.mb-2 { margin-bottom: var(--spacing-sm); }
.mb-3 { margin-bottom: var(--spacing-md); }
.mb-4 { margin-bottom: var(--spacing-lg); }
.mb-5 { margin-bottom: var(--spacing-xl); }
.mb-6 { margin-bottom: var(--spacing-2xl); }

.mt-0 { margin-top: 0; }
.mt-1 { margin-top: var(--spacing-xs); }
.mt-2 { margin-top: var(--spacing-sm); }
.mt-3 { margin-top: var(--spacing-md); }
.mt-4 { margin-top: var(--spacing-lg); }
.mt-5 { margin-top: var(--spacing-xl); }
.mt-6 { margin-top: var(--spacing-2xl); }

.d-none { display: none; }
.d-block { display: block; }
.d-flex { display: flex; }
.d-grid { display: grid; }

.align-items-center { align-items: center; }
.justify-content-center { justify-content: center; }
.justify-content-between { justify-content: space-between; }

.gap-1 { gap: var(--spacing-xs); }
.gap-2 { gap: var(--spacing-sm); }
.gap-3 { gap: var(--spacing-md); }
.gap-4 { gap: var(--spacing-lg); }
.gap-5 { gap: var(--spacing-xl); }
.gap-6 { gap: var(--spacing-2xl); }

/* Tip Cards */
.tip-card {
    padding: 16px;
    border: 1px solid #e8eaed;
    border-radius: 8px;
    background: #fff;
}

.tip-card h4 {
    margin: 0 0 8px 0;
    font-size: 14px;
    font-weight: 500;
    color: #202124;
}

.tip-card p {
    margin: 0;
    font-size: 13px;
    line-height: 1.4;
    color: #5f6368;
}

/* Search Query Cards */
.search-query-card {
    padding: 16px;
    border: 1px solid #e8eaed;
    border-radius: 8px;
    background: #fff;
    margin-bottom: 12px;
}

.search-query-card h4 {
    margin: 0 0 8px 0;
    font-size: 14px;
    font-weight: 500;
    color: #1a73e8;
}

.search-query-text {
    background: #f8f9fa;
    border: 1px solid #e8eaed;
    border-radius: 4px;
    padding: 12px;
    font-family: 'Courier New', monospace;
    font-size: 13px;
    margin: 8px 0;
    cursor: pointer;
    position: relative;
}

.search-query-text:hover {
    background: #f1f3f4;
}

.copy-btn {
    position: absolute;
    top: 8px;
    right: 8px;
    background: #1a73e8;
    color: white;
    border: none;
    border-radius: 4px;
    padding: 4px 8px;
    font-size: 11px;
    cursor: pointer;
}

.copy-btn:hover {
    background: #1557b0;
}

/* Opportunity Calculator Styles */
.opportunity-result-card {
    display: flex;
    gap: 24px;
    align-items: center;
    padding: 20px;
    background: linear-gradient(135deg, #f8f9fa 0%, #e8f0fe 100%);
    border-radius: 12px;
    border: 1px solid #e8eaed;
}

.score-display {
    display: flex;
    align-items: center;
    gap: 20px;
}

.main-score {
    text-align: center;
    padding: 20px;
    border-radius: 12px;
    min-width: 120px;
}

.main-score.success {
    background: linear-gradient(135deg, #137333 0%, #34a853 100%);
    color: white;
}

.main-score.warning {
    background: linear-gradient(135deg, #ea8600 0%, #fbbc04 100%);
    color: white;
}

.main-score.error {
    background: linear-gradient(135deg, #d93025 0%, #ea4335 100%);
    color: white;
}

.score-number {
    font-size: 36px;
    font-weight: 700;
    line-height: 1;
}

.score-label {
    font-size: 14px;
    margin-top: 4px;
    opacity: 0.9;
}

.secondary-metrics {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.metric {
    text-align: center;
}

.metric-value {
    display: block;
    font-size: 24px;
    font-weight: 600;
    color: #1a73e8;
}

.metric-label {
    font-size: 12px;
    color: #666;
    margin-top: 2px;
}

.recommendation-display {
    flex: 1;
}

.recommendation {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 16px;
    border-radius: 8px;
    border-left: 4px solid;
}

.recommendation.high {
    background: #e8f5e8;
    border-left-color: #137333;
}

.recommendation.medium {
    background: #fef7e0;
    border-left-color: #ea8600;
}

.recommendation.low {
    background: #e8f0fe;
    border-left-color: #1a73e8;
}

.recommendation.none {
    background: #fce8e6;
    border-left-color: #d93025;
}

.rec-icon {
    font-size: 24px;
}

.rec-action {
    font-weight: 600;
    font-size: 16px;
    margin-bottom: 4px;
}

.rec-message {
    color: #666;
    font-size: 14px;
    line-height: 1.4;
}

/* Key Metrics Grid */
.metrics-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 16px;
}

.metric-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 16px;
    background: #f8f9fa;
    border-radius: 8px;
    border: 1px solid #e8eaed;
}

.metric-icon {
    font-size: 24px;
}

.metric-content .metric-value {
    font-size: 18px;
    font-weight: 600;
    color: #1a73e8;
    display: block;
}

.metric-content .metric-label {
    font-size: 12px;
    color: #666;
    margin-top: 2px;
}

/* Recommendation Items */
.recommendation-item {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    padding: 16px;
    background: #f8f9fa;
    border-radius: 8px;
    border-left: 3px solid #1a73e8;
    margin-bottom: 12px;
}

.recommendation-item .rec-icon {
    font-size: 20px;
    margin-top: 2px;
}

.rec-title {
    font-weight: 600;
    color: #1a73e8;
    margin-bottom: 4px;
}

.rec-content .rec-message {
    color: #666;
    font-size: 14px;
    line-height: 1.4;
}

/* Responsive adjustments for Opportunity Calculator */
@media (max-width: 768px) {
    .opportunity-result-card {
        flex-direction: column;
        gap: 16px;
        text-align: center;
    }
    
    .score-display {
        flex-direction: column;
        gap: 16px;
    }
    
    .secondary-metrics {
        flex-direction: row;
        justify-content: space-around;
        width: 100%;
    }
    
    .metrics-grid {
        grid-template-columns: 1fr;
    }
}

/* Export/Import Modal Styles */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    z-index: 10000;
    display: flex;
    align-items: center;
    justify-content: center;
    animation: fadeIn 0.3s ease;
}

.modal-content {
    background: white;
    border-radius: 12px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.2);
    width: 90%;
    max-width: 600px;
    max-height: 90vh;
    overflow-y: auto;
    animation: slideUp 0.3s ease;
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 24px;
    border-bottom: 1px solid #e8eaed;
}

.modal-header h3 {
    margin: 0;
    color: #1a73e8;
}

.modal-close {
    background: none;
    border: none;
    font-size: 24px;
    color: #666;
    cursor: pointer;
    padding: 4px;
    border-radius: 4px;
    transition: all 0.2s ease;
}

.modal-close:hover {
    background: #f1f3f4;
    color: #333;
}

.modal-body {
    padding: 24px;
}

.export-options {
    display: flex;
    flex-direction: column;
    gap: 12px;
    margin-top: 16px;
}

.option-card {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 16px;
    border: 1px solid #e8eaed;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.2s ease;
}

.option-card:hover {
    border-color: #1a73e8;
    background: #f8f9fa;
    transform: translateY(-1px);
    box-shadow: 0 2px 8px rgba(26, 115, 232, 0.1);
}

.option-icon {
    font-size: 24px;
    min-width: 40px;
    text-align: center;
}

.option-content h5 {
    margin: 0 0 4px 0;
    color: #1a73e8;
    font-weight: 600;
}

.option-content p {
    margin: 0;
    color: #666;
    font-size: 14px;
    line-height: 1.4;
}

.import-area {
    margin-top: 16px;
}

.file-drop-zone {
    border: 2px dashed #e8eaed;
    border-radius: 8px;
    padding: 40px 20px;
    text-align: center;
    cursor: pointer;
    transition: all 0.2s ease;
    margin-bottom: 20px;
}

.file-drop-zone:hover {
    border-color: #1a73e8;
    background: #f8f9fa;
}

.drop-icon {
    font-size: 48px;
    margin-bottom: 12px;
}

.file-drop-zone h5 {
    margin: 0 0 8px 0;
    color: #1a73e8;
}

.file-drop-zone p {
    margin: 0;
    color: #666;
    font-size: 14px;
}

.import-info {
    background: #f8f9fa;
    border-radius: 8px;
    padding: 16px;
}

.import-info h5 {
    margin: 0 0 12px 0;
    color: #1a73e8;
}

.import-info ul {
    margin: 0 0 16px 0;
    padding-left: 20px;
}

.import-info li {
    margin-bottom: 4px;
    font-size: 14px;
    line-height: 1.4;
}

.sample-download {
    text-align: center;
}

.report-actions {
    display: flex;
    gap: 12px;
    justify-content: center;
    margin-top: 20px;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

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

/* Report Styles */
.report-summary {
    padding: 20px 0;
}

.report-metrics {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 16px;
    margin: 20px 0;
}

.metric-card {
    text-align: center;
    padding: 16px;
    background: #f8f9fa;
    border-radius: 8px;
    border: 1px solid #e8eaed;
}

.metric-value {
    font-size: 28px;
    font-weight: bold;
    color: #1a73e8;
    margin-bottom: 4px;
}

.metric-label {
    font-size: 12px;
    color: #666;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.report-insights,
.report-recommendations,
.report-categories {
    margin: 24px 0;
}

.report-insights h5,
.report-recommendations h5,
.report-categories h5 {
    color: #1a73e8;
    margin-bottom: 12px;
    font-size: 16px;
}

.report-insights ul,
.report-recommendations ul {
    margin: 0;
    padding-left: 20px;
}

.report-insights li,
.report-recommendations li {
    margin: 8px 0;
    line-height: 1.5;
}

.category-stats {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.category-stat {
    padding: 12px;
    background: #f8f9fa;
    border-radius: 6px;
    border-left: 4px solid #1a73e8;
    font-size: 14px;
}

.preview-stats {
    display: flex;
    gap: 16px;
    margin: 16px 0;
    flex-wrap: wrap;
}

.stat-item {
    padding: 8px 12px;
    background: #e8f0fe;
    color: #1a73e8;
    border-radius: 16px;
    font-size: 14px;
    font-weight: 500;
}

.preview-table {
    max-height: 300px;
    overflow-y: auto;
    border: 1px solid #e8eaed;
    border-radius: 8px;
    margin: 16px 0;
}

.preview-table .table {
    margin: 0;
}

.preview-table th {
    background: #f8f9fa;
    position: sticky;
    top: 0;
    z-index: 1;
}

.import-actions {
    display: flex;
    gap: 12px;
    justify-content: center;
    margin-top: 20px;
}

/* Responsive modal */
@media (max-width: 768px) {
    .modal-content {
        width: 95%;
        margin: 20px;
    }
    
    .modal-body {
        padding: 16px;
    }
    
    .export-options {
        gap: 8px;
    }
    
    .option-card {
        padding: 12px;
    }
    
    .report-actions {
        flex-direction: column;
    }
    
    .report-metrics {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .preview-stats {
        justify-content: center;
    }
    
    .import-actions {
        flex-direction: column;
    }
}

/* Clear Data Modal Styles */
.clear-warning {
    text-align: center;
    padding: 20px 0;
}

.warning-icon {
    font-size: 48px;
    margin-bottom: 16px;
}

.clear-warning h4 {
    color: #d93025;
    margin-bottom: 16px;
    font-size: 18px;
}

.clear-warning p {
    color: #666;
    margin-bottom: 20px;
}

.data-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
    margin: 20px 0;
    text-align: left;
}

.data-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px;
    background: #f8f9fa;
    border-radius: 8px;
    border-left: 4px solid #d93025;
}

.data-icon {
    font-size: 20px;
    min-width: 24px;
}

.data-text {
    flex: 1;
    font-weight: 500;
    color: #333;
}

.data-count {
    font-size: 14px;
    color: #666;
    background: #e8eaed;
    padding: 4px 8px;
    border-radius: 12px;
    font-weight: 500;
}

.warning-message {
    background: #fef7f0;
    border: 1px solid #fbbc04;
    border-radius: 8px;
    padding: 16px;
    margin: 20px 0;
    color: #d93025;
    font-size: 14px;
    line-height: 1.5;
}

.clear-actions {
    display: flex;
    gap: 12px;
    justify-content: center;
    margin-top: 24px;
    flex-wrap: wrap;
}

.clear-actions .btn {
    min-width: 120px;
}

.btn-danger {
    background-color: #d93025;
    color: white;
    border: 1px solid #d93025;
}

.btn-danger:hover {
    background-color: #b52d20;
    border-color: #b52d20;
    transform: translateY(-1px);
    box-shadow: 0 2px 8px rgba(217, 48, 37, 0.3);
}

/* Top Bar Actions Mobile Responsive */
.top-bar-actions {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
    align-items: center;
}

.top-bar-actions .btn {
    white-space: nowrap;
    min-width: 0;
    flex-shrink: 1;
    display: flex;
    align-items: center;
    gap: 4px;
}

.btn-icon {
    font-size: 14px;
    line-height: 1;
}

.btn-text {
    font-size: 13px;
}

/* Mobile responsive adjustments */
/* ==== CONSOLIDATED MOBILE TOP-BAR STYLES ==== */
@media (max-width: 768px) {
    .app-layout .main-content .top-bar,
    .main-content .top-bar,
    .top-bar {
        display: flex !important;
        flex-direction: row !important;
        align-items: center !important;
        justify-content: space-between !important;
        padding: 0 var(--spacing-md) !important;
        height: 56px !important;
        background: var(--white) !important;
        border-bottom: 1px solid var(--gray-200) !important;
        position: sticky !important;
        top: 0 !important;
        z-index: 1001 !important;
        gap: var(--spacing-sm) !important;
        flex-wrap: nowrap !important;
    }
    
    .mobile-menu-toggle {
        display: flex !important;
        order: -1 !important;
        background: none !important;
        border: none !important;
        font-size: 20px !important;
        color: var(--gray-700) !important;
        cursor: pointer !important;
        padding: var(--spacing-sm) !important;
        border-radius: var(--border-radius-sm) !important;
        transition: all var(--transition-fast) !important;
        min-width: 44px !important;
        min-height: 44px !important;
        align-items: center !important;
        justify-content: center !important;
    }
    
    .mobile-menu-toggle:hover {
        background: var(--gray-100) !important;
        color: var(--gray-900) !important;
    }
    
    .top-bar-title {
        font-size: 18px !important;
        font-weight: 500 !important;
        color: var(--gray-900) !important;
        margin: 0 !important;
        flex: 1 !important;
        text-align: left !important;
        white-space: nowrap !important;
        overflow: hidden !important;
        text-overflow: ellipsis !important;
        padding: 0 var(--spacing-sm) !important;
    }
    
    .top-bar-actions {
        display: none !important; /* Hide on mobile - use FAB instead */
    }
}

/* ==== FINAL MOBILE TOP-BAR OVERRIDE - HIGHEST SPECIFICITY ==== */
@media screen and (max-width: 768px) {
    html body .app-layout .main-content .top-bar,
    html body .main-content .top-bar,
    html body .top-bar,
    body .top-bar,
    .top-bar {
        display: flex !important;
        flex-direction: row !important;
        align-items: center !important;
        justify-content: space-between !important;
        flex-wrap: nowrap !important;
        padding: 0 var(--spacing-md) !important;
        height: 56px !important;
        background: var(--white) !important;
        border-bottom: 1px solid var(--gray-200) !important;
        position: sticky !important;
        top: 0 !important;
        z-index: 1001 !important;
        gap: var(--spacing-sm) !important;
    }
    
    /* Ensure top-bar-actions are always hidden on mobile */
    html body .top-bar-actions,
    body .top-bar-actions,
    .top-bar-actions {
        display: none !important;
        visibility: hidden !important;
    }
    
    /* Ensure FAB is always shown on mobile */
    html body .fab-container,
    body .fab-container,
    .fab-container {
        display: flex !important;
        visibility: visible !important;
    }
}

@media (max-width: 480px) {
    html body .top-bar,
    body .top-bar,
    .top-bar {
        display: flex !important;
        flex-direction: row !important;
        padding: 0 var(--spacing-sm) !important;
        height: 52px !important;
    }
    
    .top-bar-actions {
        display: none !important; /* Hide on mobile - use FAB instead */
    }
    
    .mobile-menu-toggle {
        font-size: 18px !important;
        min-width: 40px !important;
        min-height: 40px !important;
        padding: var(--spacing-xs) !important;
    }
    
    .top-bar-title {
        font-size: 16px !important;
        padding: 0 var(--spacing-xs) !important;
    }
    
    /* FAB adjustments for small screens */
    .fab-container {
        bottom: 16px !important;
        right: 16px !important;
    }
    
    .fab-main {
        width: 52px !important;
        height: 52px !important;
    }
}

@media (max-width: 360px) {
    html body .top-bar,
    body .top-bar,
    .top-bar {
        display: flex !important;
        flex-direction: row !important;
        padding: 0 var(--spacing-xs) !important;
        height: 50px !important;
    }
    
    .mobile-menu-toggle {
        font-size: 16px !important;
        min-width: 36px !important;
        min-height: 36px !important;
    }
    
    .top-bar-title {
        font-size: 14px !important;
        padding: 0 4px !important;
    }
}

/* Floating Action Button */
.fab-container {
    position: fixed;
    bottom: 20px;
    right: 20px;
    z-index: 100;
    display: none; /* Hidden on desktop - use top-bar-actions instead */
    flex-direction: column;
    align-items: flex-end;
    gap: 12px;
    min-width: 80px;
    min-height: 80px;
}

/* Show FAB on mobile devices and hide top-bar-actions */
@media (max-width: 768px) {
    .top-bar-actions {
        display: none !important; /* Always hide on mobile */
    }
    
    .fab-container {
        display: flex !important; /* Always show on mobile */
    }
}

.fab-main {
    width: 56px;
    height: 56px;
    border-radius: 50%;
    background: linear-gradient(135deg, #1a73e8, #4285f4);
    border: none;
    box-shadow: 0 4px 12px rgba(26, 115, 232, 0.4);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
}

.fab-main:hover {
    transform: scale(1.05);
    box-shadow: 0 6px 16px rgba(26, 115, 232, 0.5);
}

.fab-main:active {
    transform: scale(0.95);
}

.fab-main-icon {
    font-size: 24px;
    color: white;
    transition: transform 0.3s ease;
}

.fab-main.active .fab-main-icon {
    transform: rotate(45deg);
}

.fab-menu {
    display: flex;
    flex-direction: column;
    gap: 8px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    pointer-events: none;
}

.fab-menu.active {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
    pointer-events: all;
}

.fab-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    background: white;
    border-radius: 28px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
    cursor: pointer;
    transition: all 0.2s ease;
    white-space: nowrap;
    min-width: 140px;
    transform: scale(0.8);
    opacity: 0;
}

.fab-menu.active .fab-item {
    transform: scale(1);
    opacity: 1;
}

.fab-menu.active .fab-item:nth-child(1) { transition-delay: 0.1s; }
.fab-menu.active .fab-item:nth-child(2) { transition-delay: 0.15s; }
.fab-menu.active .fab-item:nth-child(3) { transition-delay: 0.2s; }
.fab-menu.active .fab-item:nth-child(4) { transition-delay: 0.25s; }

.fab-item:hover {
    transform: scale(1.02) translateX(-4px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}

.fab-icon {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 16px;
    background: #f8f9fa;
    border: 1px solid #e8eaed;
}

.fab-label {
    font-size: 14px;
    font-weight: 500;
    color: #333;
}

/* Color coding for different actions */
.fab-item:nth-child(1) .fab-icon { /* Export */
    background: #e8f0fe;
    color: #1a73e8;
    border-color: #1a73e8;
}

.fab-item:nth-child(2) .fab-icon { /* Report */
    background: #e6f4ea;
    color: #137333;
    border-color: #137333;
}

.fab-item:nth-child(3) .fab-icon { /* Import */
    background: #fef7e0;
    color: #f9ab00;
    border-color: #f9ab00;
}

.fab-item:nth-child(4) .fab-icon { /* Clear */
    background: #fce8e6;
    color: #d93025;
    border-color: #d93025;
}

/* Mobile adjustments */
@media (max-width: 768px) {
    .fab-container {
        bottom: 16px;
        right: 16px;
    }
    
    .fab-main {
        width: 52px;
        height: 52px;
    }
    
    .fab-main-icon {
        font-size: 22px;
    }
    
    .fab-item {
        min-width: 120px;
        padding: 10px 14px;
    }
    
    .fab-label {
        font-size: 13px;
    }
    
    .fab-icon {
        width: 28px;
        height: 28px;
        font-size: 14px;
    }
}

@media (max-width: 480px) {
    .fab-container {
        bottom: 12px;
        right: 12px;
    }
    
    .fab-main {
        width: 48px;
        height: 48px;
    }
    
    .fab-item {
        min-width: 110px;
        padding: 8px 12px;
    }
}

/* Responsive clear modal */
@media (max-width: 768px) {
    .clear-actions {
        flex-direction: column;
        align-items: center;
    }
    
    .clear-actions .btn {
        width: 100%;
        max-width: 200px;
    }
    
    .data-list {
        gap: 8px;
    }
    
    .data-item {
        padding: 10px;
    }
}

/* Additional Mobile Fixes */
@media (max-width: 768px) {
    /* Ensure mobile menu toggle is always visible on mobile */
    .mobile-menu-toggle {
        display: block !important;
        z-index: 1001;
    }
    
    /* Fix top bar layout for mobile */
    .top-bar {
        flex-wrap: nowrap !important;
    }
    
    /* Ensure sidebar is properly layered */
    .sidebar {
        z-index: 1000 !important;
    }
    
    /* Ensure overlay is properly layered */
    .mobile-overlay {
        z-index: 999 !important;
    }
    
    /* Show FAB on mobile instead of top-bar-actions */
    .fab-container {
        display: flex !important;
        z-index: 100 !important;
    }
    
    /* Improve mobile form inputs */
    .form-control {
        -webkit-appearance: none;
        border-radius: var(--border-radius-md);
    }
    
    /* Better mobile button accessibility */
    .btn {
        min-height: 44px;
        border-radius: var(--border-radius-md);
    }
    
    /* Improve mobile table scrolling */
    .table-container {
        -webkit-overflow-scrolling: touch;
        border-radius: var(--border-radius-md);
    }
}

/* Extra small devices - ensure everything is accessible */
@media (max-width: 360px) {
    .sidebar {
        width: 100vw !important;
    }
    
    .content-area {
        padding: var(--spacing-sm);
    }
    
    .metric-card {
        padding: var(--spacing-md);
    }
    
    .card {
        margin-bottom: var(--spacing-md);
    }
    
    /* Ensure text is readable on very small screens */
    .top-bar-title {
        font-size: 14px;
    }
    
    /* Ensure top-bar-actions remain hidden on smallest screens */
    .top-bar-actions {
        display: none !important; /* Force hide on very small screens */
    }
}

/* Landscape orientation fixes for mobile */
@media (max-width: 768px) and (orientation: landscape) {
    .content-area {
        padding: var(--spacing-md);
    }
    
    .grid {
        gap: var(--spacing-md);
    }
    
    .fab-container {
        bottom: 12px;
        right: 12px;
    }
}

/* Ensure touch targets meet accessibility guidelines */
@media (hover: none) and (pointer: coarse) {
    .btn,
    .nav-item,
    .mobile-menu-toggle,
    .mobile-close-btn,
    .fab-main,
    .fab-item {
        min-height: 44px;
        min-width: 44px;
    }
    
    /* Increase padding for better touch targets */
    .nav-item {
        padding: var(--spacing-lg) var(--spacing-xl);
    }
}

/* ==== MOBILE DEVICE DETECTION AND OPTIMIZATIONS ==== */
@media (hover: none) and (pointer: coarse) {
    /* Touch device optimizations */
    .top-bar {
        -webkit-user-select: none;
        user-select: none;
        -webkit-tap-highlight-color: transparent;
    }
    
    .mobile-menu-toggle {
        -webkit-tap-highlight-color: rgba(26, 115, 232, 0.2);
        touch-action: manipulation;
    }
    
    .top-bar-title {
        -webkit-user-select: none;
        user-select: none;
        pointer-events: none;
    }
}

/* ==== ADDITIONAL MOBILE FIXES ==== */
@media screen and (max-width: 768px) {
    /* Ensure mobile menu toggle is always visible */
    .mobile-menu-toggle {
        opacity: 1 !important;
        visibility: visible !important;
        display: flex !important;
    }
    
    /* Prevent top-bar from being hidden */
    .top-bar {
        display: flex !important;
        opacity: 1 !important;
        visibility: visible !important;
    }
    
    /* Mobile-specific z-index layering */
    .top-bar {
        z-index: 1001 !important;
    }
    
    .sidebar {
        z-index: 1000 !important;
    }
    
    .mobile-overlay {
        z-index: 999 !important;
    }
    
    .fab-container {
        z-index: 100 !important;
    }
}

/* ==== MOBILE ACCESSIBILITY ENHANCEMENTS ==== */
@media (max-width: 768px) {
    /* Larger touch targets for mobile */
    .mobile-menu-toggle,
    .mobile-close-btn {
        min-width: 44px !important;
        min-height: 44px !important;
        touch-action: manipulation !important;
    }
    
    /* Better focus indicators for mobile */
    .mobile-menu-toggle:focus,
    .mobile-close-btn:focus {
        outline: 2px solid var(--primary-blue) !important;
        outline-offset: 2px !important;
    }
    
    /* Improve readability on mobile */
    .top-bar-title {
        line-height: 1.2 !important;
        letter-spacing: 0.5px !important;
    }
}

/* ==== MOBILE PERFORMANCE OPTIMIZATIONS ==== */
@media (max-width: 768px) {
    /* Hardware acceleration for smooth animations */
    .top-bar,
    .mobile-menu-toggle,
    .sidebar,
    .mobile-overlay {
        -webkit-transform: translateZ(0);
        transform: translateZ(0);
        -webkit-backface-visibility: hidden;
        backface-visibility: hidden;
    }
    
    /* Reduce motion for users who prefer it */
    @media (prefers-reduced-motion: reduce) {
        .top-bar,
        .mobile-menu-toggle,
        .sidebar {
            transition: none !important;
            animation: none !important;
        }
    }
}

/* ==== LANDSCAPE ORIENTATION FIXES ==== */
@media screen and (max-width: 768px) and (orientation: landscape) {
    .top-bar {
        height: 48px !important;
        padding: 0 var(--spacing-sm) !important;
    }
    
    .mobile-menu-toggle {
        min-width: 40px !important;
        min-height: 40px !important;
        font-size: 18px !important;
    }
    
    .top-bar-title {
        font-size: 16px !important;
    }
}

/* ==== HIGH DPI DISPLAYS ==== */
@media (-webkit-min-device-pixel-ratio: 2), (min-resolution: 192dpi) {
    .mobile-menu-toggle,
    .mobile-close-btn {
        -webkit-font-smoothing: antialiased;
        -moz-osx-font-smoothing: grayscale;
    }
}