static/css/main.css

/* Crypto Intelligence Hub - Enhanced Stylesheet with Sidebar Navigation */

:root {
    /* Primary Colors */
    --primary: #667eea;
    --primary-dark: #764ba2;
    --primary-light: #8b9aff;
    --secondary: #f093fb;
    --accent: #ff6b9d;
    
    /* Status Colors */
    --success: #10b981;
    --danger: #ef4444;
    --warning: #f59e0b;
    --info: #3b82f6;
    
    /* Background Colors */
    --dark: #0a0e1a;
    --dark-card: #111827;
    --dark-hover: #1f2937;
    --dark-elevated: #1a1f35;
    
    /* Text Colors */
    --text-primary: #f9fafb;
    --text-secondary: #9ca3af;
    --text-muted: #6b7280;
    
    /* UI Elements */
    --border: rgba(255, 255, 255, 0.1);
    --border-light: rgba(255, 255, 255, 0.05);
    --shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 20px 60px rgba(0, 0, 0, 0.4);
    --glow: 0 0 20px rgba(102, 126, 234, 0.3);
    
    /* Sidebar */
    --sidebar-width: 300px;
    --sidebar-collapsed-width: 70px;
    
    /* Gradients */
    --gradient-purple: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --gradient-blue: linear-gradient(135deg, #3b82f6 0%, #2563eb 100%);
    --gradient-green: linear-gradient(135deg, #10b981 0%, #059669 100%);
    --gradient-orange: linear-gradient(135deg, #f59e0b 0%, #d97706 100%);
    --gradient-pink: linear-gradient(135deg, #f093fb 0%, #ff6b9d 100%);
    
    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
    
    /* Spacing */
    --spacing-xs: 4px;
    --spacing-sm: 8px;
    --spacing-md: 16px;
    --spacing-lg: 24px;
    --spacing-xl: 32px;
    --spacing-2xl: 48px;
    
    /* Border Radius */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 20px;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: linear-gradient(135deg, var(--dark) 0%, #1a1f35 50%, #0f1729 100%);
    background-attachment: fixed;
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
    overflow-x: hidden;
    font-size: 15px;
}

/* Animated background particles */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: 
        radial-gradient(circle at 20% 50%, rgba(102, 126, 234, 0.05) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(240, 147, 251, 0.05) 0%, transparent 50%),
        radial-gradient(circle at 40% 20%, rgba(59, 130, 246, 0.05) 0%, transparent 50%);
    pointer-events: none;
    z-index: 0;
}

/* =============================================================================
   Layout Structure
   ============================================================================= */

.app-layout {
    display: flex;
    min-height: 100vh;
    position: relative;
    z-index: 1;
}

/* =============================================================================
   Sidebar Navigation
   ============================================================================= */

.sidebar {
    width: var(--sidebar-width);
    background: linear-gradient(180deg, rgba(17, 24, 39, 0.95) 0%, rgba(31, 41, 55, 0.9) 100%);
    backdrop-filter: blur(20px);
    border-right: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 0;
    left: 0;
    height: 100vh;
    z-index: 1000;
    transition: transform var(--transition-normal);
    box-shadow: var(--shadow);
}

.sidebar-header {
    padding: 16px 16px;
    border-bottom: 1px solid var(--border);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.sidebar-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    transition: var(--transition-normal);
}

.sidebar-logo:hover {
    opacity: 0.9;
    transform: scale(1.02);
}

.sidebar-logo .logo-icon {
    width: 36px;
    height: 36px;
    background: var(--gradient-purple);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 22px;
    color: white;
    box-shadow: var(--glow);
    animation: float 3s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-5px); }
}

.sidebar-logo .logo-text h1 {
    font-size: 17px;
    font-weight: 800;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 2px;
}

.sidebar-logo .logo-text p {
    font-size: 10px;
    color: var(--text-secondary);
    font-weight: 500;
}

.sidebar-toggle-btn {
    display: none;
    width: 32px;
    height: 32px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border);
    border-radius: 8px;
    color: var(--text-primary);
    cursor: pointer;
    transition: var(--transition-fast);
}

.sidebar-toggle-btn:hover {
    background: rgba(255, 255, 255, 0.1);
    transform: rotate(90deg);
}

/* Sidebar Navigation */
.sidebar-nav {
    flex: 1;
    padding: 12px 10px 14px;
    overflow-y: auto;
}

.nav-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 12px;
    background: transparent;
    border: 1px solid transparent;
    border-radius: 12px;
    color: var(--text-secondary);
    cursor: pointer;
    font-size: 14px;
    font-weight: 600;
    line-height: 1.25;
    transition: all var(--transition-fast);
    width: 100%;
    text-align: left;
    margin-bottom: 6px;
}

.nav-item span {
    min-width: 0;
}

.nav-item svg {
    width: 18px;
    height: 18px;
    flex-shrink: 0;
    stroke-width: 2;
}

.nav-item:hover {
    background: rgba(102, 126, 234, 0.12);
    border-color: rgba(102, 126, 234, 0.35);
    color: var(--text-primary);
    transform: translateX(4px);
}

.nav-item.active {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    border-color: var(--primary);
    color: white;
    box-shadow: 0 5px 15px rgba(102, 126, 234, 0.4);
}

/* Sidebar Footer */
.sidebar-footer {
    padding: 12px 14px 14px;
    border-top: 1px solid var(--border);
    display: grid;
    gap: 8px;
    background: rgba(0, 0, 0, 0.08);
}

.status-indicator {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 11px;
    background: rgba(16, 185, 129, 0.15);
    border: 1px solid rgba(16, 185, 129, 0.3);
    border-radius: 10px;
    font-size: 12px;
    font-weight: 600;
    margin-bottom: 0;
}

.status-dot {
    width: 10px;
    height: 10px;
    background: var(--success);
    border-radius: 50%;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.5; transform: scale(1.2); }
}

.sidebar-stats {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 8px;
}

.stat-mini {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
    padding: 9px 7px;
    background: rgba(31, 41, 55, 0.6);
    border-radius: 10px;
    border: 1px solid var(--border);
    text-align: center;
    min-width: 0;
}

.stat-mini svg {
    width: 16px;
    height: 16px;
    color: var(--primary);
    margin-bottom: 5px;
    stroke-width: 2;
}

.stat-mini span {
    font-size: 16px;
    font-weight: 700;
    color: var(--text-primary);
    display: block;
    visibility: visible;
    opacity: 1;
    min-height: 1.2em;
    line-height: 1.2;
}

.stat-mini small {
    display: block;
    font-size: 9px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--text-secondary);
    line-height: 1.1;
    white-space: nowrap;
}

/* Sidebar Overlay for Mobile */
.sidebar-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(5px);
    z-index: 999;
    opacity: 0;
    transition: opacity var(--transition-normal);
}

.sidebar-overlay.active {
    display: block;
    opacity: 1;
}

/* =============================================================================
   Main Wrapper
   ============================================================================= */

.main-wrapper {
    flex: 1;
    margin-left: var(--sidebar-width);
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    transition: margin-left var(--transition-normal);
}

/* Top Header */
.top-header {
    background: linear-gradient(135deg, rgba(17, 24, 39, 0.9) 0%, rgba(31, 41, 55, 0.7) 100%);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border);
    padding: 20px 30px;
    display: flex;
    align-items: center;
    gap: 20px;
    box-shadow: var(--shadow);
    position: sticky;
    top: 0;
    z-index: 100;
}

.hamburger-btn {
    display: none;
    width: 40px;
    height: 40px;
    background: rgba(102, 126, 234, 0.2);
    border: 1px solid var(--primary);
    border-radius: 10px;
    color: var(--text-primary);
    cursor: pointer;
    font-size: 18px;
    transition: var(--transition-fast);
}

.hamburger-btn:hover {
    background: var(--gradient-purple);
    transform: scale(1.05);
}

.header-title {
    flex: 1;
}

.header-title h2 {
    font-size: 24px;
    font-weight: 700;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 2px;
}

.header-title p {
    font-size: 13px;
    color: var(--text-secondary);
}

.header-actions {
    display: flex;
    gap: 10px;
}

.icon-btn {
    width: 40px;
    height: 40px;
    background: rgba(31, 41, 55, 0.6);
    border: 1px solid var(--border);
    border-radius: 10px;
    color: var(--text-primary);
    cursor: pointer;
    transition: var(--transition-fast);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 16px;
}

.icon-btn:hover {
    background: var(--gradient-purple);
    border-color: var(--primary);
    transform: translateY(-2px);
}

/* =============================================================================
   Content Area
   ============================================================================= */

.content-area {
    flex: 1;
    padding: 30px;
    overflow-y: auto;
}

.tab-panel {
    display: none;
}

.tab-panel.active {
    display: block;
    animation: fadeIn 0.3s;
}

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

/* =============================================================================
   Cards & Components
   ============================================================================= */

.glass-card {
    background: rgba(17, 24, 39, 0.7);
    backdrop-filter: blur(12px) saturate(180%);
    border: 1px solid var(--border);
    border-radius: 18px;
    padding: 28px;
    margin-bottom: 24px;
    transition: all var(--transition-normal);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
    position: relative;
    overflow: hidden;
}

.glass-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--primary), transparent);
    opacity: 0;
    transition: opacity var(--transition-normal);
}

.glass-card:hover {
    border-color: rgba(102, 126, 234, 0.4);
    box-shadow: 0 12px 40px rgba(102, 126, 234, 0.2), 0 4px 20px rgba(0, 0, 0, 0.3);
    transform: translateY(-2px);
}

.glass-card:hover::before {
    opacity: 1;
}

.glass-card h3 {
    font-size: 22px;
    font-weight: 700;
    margin-bottom: 20px;
    color: var(--text-primary);
    border-bottom: 2px solid var(--border);
    padding-bottom: 12px;
    letter-spacing: -0.02em;
    display: flex;
    align-items: center;
    gap: 10px;
}

.glass-card h3::before {
    content: '';
    width: 4px;
    height: 22px;
    background: var(--gradient-purple);
    border-radius: 2px;
    flex-shrink: 0;
}

.card-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 24px;
    gap: 16px;
    flex-wrap: wrap;
}

.card-header h3 {
    margin-bottom: 0;
    border-bottom: none;
    padding-bottom: 0;
    flex: 1;
    min-width: 200px;
}

.card-header > div:first-child {
    flex: 1;
    min-width: 200px;
}

.card-header > div:first-child p {
    margin-top: 6px;
    font-size: 14px;
    line-height: 1.5;
}

/* Stats Grid */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    margin-bottom: 30px;
}

/* Tablet: 2 columns */
@media (max-width: 1024px) and (min-width: 769px) {
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* Mobile: 1 column */
@media (max-width: 768px) {
    .stats-grid {
        grid-template-columns: 1fr;
    }
}

.stat-card {
    background: linear-gradient(135deg, rgba(17, 24, 39, 0.85), rgba(31, 41, 55, 0.7));
    border: 1px solid var(--border);
    border-radius: 18px;
    padding: 24px;
    display: flex;
    align-items: center;
    gap: 18px;
    transition: all var(--transition-normal);
    backdrop-filter: blur(12px) saturate(180%);
    position: relative;
    overflow: hidden;
    min-height: 130px;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.15);
}

.stat-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, transparent 0%, rgba(255, 255, 255, 0.05) 100%);
    opacity: 0;
    transition: var(--transition-normal);
}

.stat-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 12px 32px rgba(0, 0, 0, 0.3), 0 4px 16px rgba(102, 126, 234, 0.2);
    border-color: rgba(102, 126, 234, 0.4);
}

.stat-card:hover::before {
    opacity: 1;
}

.stat-card.gradient-purple {
    border-left: 4px solid #667eea;
}

.stat-card.gradient-green {
    border-left: 4px solid #10b981;
}

.stat-card.gradient-blue {
    border-left: 4px solid #3b82f6;
}

.stat-card.gradient-orange {
    border-left: 4px solid #f59e0b;
}

.stat-icon {
    width: 64px;
    height: 64px;
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 28px;
    flex-shrink: 0;
    transition: transform var(--transition-normal);
}

.stat-card:hover .stat-icon {
    transform: scale(1.1) rotate(5deg);
}

.stat-card.gradient-purple .stat-icon {
    background: var(--gradient-purple);
    color: white;
    box-shadow: 0 10px 30px rgba(102, 126, 234, 0.3);
}

.stat-card.gradient-green .stat-icon {
    background: var(--gradient-green);
    color: white;
    box-shadow: 0 10px 30px rgba(16, 185, 129, 0.3);
}

.stat-card.gradient-blue .stat-icon {
    background: var(--gradient-blue);
    color: white;
    box-shadow: 0 10px 30px rgba(59, 130, 246, 0.3);
}

.stat-card.gradient-orange .stat-icon {
    background: var(--gradient-orange);
    color: white;
    box-shadow: 0 10px 30px rgba(245, 158, 11, 0.3);
}

.stat-content {
    flex: 1;
}

.stat-value {
    font-size: 36px;
    font-weight: 800;
    color: var(--text-primary);
    margin-bottom: 6px;
    display: block;
    visibility: visible;
    opacity: 1;
    min-height: 1.2em;
    line-height: 1.2;
    letter-spacing: -0.03em;
    background: linear-gradient(135deg, var(--text-primary), rgba(255, 255, 255, 0.8));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-label {
    font-size: 14px;
    color: var(--text-secondary);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 8px;
}

.stat-trend {
    font-size: 13px;
    color: var(--text-secondary);
    margin-top: 8px;
    display: flex;
    align-items: center;
    gap: 6px;
    font-weight: 500;
}

.stat-trend i {
    color: var(--success);
}

/* Grid Layouts */
.grid-2 {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 20px;
}

/* =============================================================================
   Forms
   ============================================================================= */

.form-group {
    margin-bottom: 24px;
}

.form-group label {
    display: block;
    margin-bottom: 10px;
    font-weight: 600;
    color: var(--text-primary);
    font-size: 14px;
    letter-spacing: 0.01em;
}

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 14px 16px;
    background: rgba(31, 41, 55, 0.7);
    border: 1.5px solid var(--border);
    border-radius: 12px;
    color: var(--text-primary);
    font-family: inherit;
    font-size: 15px;
    transition: all var(--transition-fast);
    backdrop-filter: blur(8px);
}

.form-group input:hover,
.form-group textarea:hover,
.form-group select:hover {
    border-color: rgba(102, 126, 234, 0.3);
    background: rgba(31, 41, 55, 0.8);
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 4px rgba(102, 126, 234, 0.15), 0 4px 12px rgba(102, 126, 234, 0.1);
    background: rgba(31, 41, 55, 0.9);
    transform: translateY(-1px);
}

.form-group textarea {
    resize: vertical;
    min-height: 100px;
    line-height: 1.6;
}

.form-group select {
    cursor: pointer;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%239ca3af' d='M6 9L1 4h10z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 14px center;
    padding-right: 40px;
}

/* =============================================================================
   Buttons
   ============================================================================= */

.btn-primary, .btn-refresh {
    padding: 14px 28px;
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    border: none;
    border-radius: 12px;
    color: white;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-fast);
    font-size: 15px;
    position: relative;
    overflow: hidden;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    letter-spacing: 0.01em;
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.3);
}

.btn-primary::before, .btn-refresh::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.25);
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}

.btn-primary:hover, .btn-refresh:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 24px rgba(102, 126, 234, 0.5);
    background: linear-gradient(135deg, var(--primary-light), var(--primary));
}

.btn-primary:active, .btn-refresh:active {
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.4);
}

.btn-primary:hover::before, .btn-refresh:hover::before {
    width: 300px;
    height: 300px;
}

.btn-refresh {
    background: rgba(102, 126, 234, 0.15);
    border: 1.5px solid var(--primary);
    box-shadow: 0 2px 8px rgba(102, 126, 234, 0.2);
}

.btn-refresh:hover {
    background: rgba(102, 126, 234, 0.25);
    border-color: var(--primary-light);
}

/* =============================================================================
   Tables
   ============================================================================= */

table {
    width: 100%;
    border-collapse: separate;
    border-spacing: 0;
    border-radius: 12px;
    overflow: hidden;
}

table th,
table td {
    padding: 16px;
    text-align: left;
    border-bottom: 1px solid var(--border);
    white-space: nowrap;
    transition: background-color var(--transition-fast);
}

table td:nth-child(3),
table td:nth-child(5),
table td:nth-child(6) {
    font-family: 'JetBrains Mono', monospace;
    font-size: 14px;
}

table th {
    background: linear-gradient(135deg, rgba(31, 41, 55, 0.8), rgba(17, 24, 39, 0.8));
    font-weight: 700;
    color: var(--text-primary);
    text-transform: uppercase;
    font-size: 12px;
    letter-spacing: 0.05em;
    border-bottom: 2px solid var(--border);
    position: sticky;
    top: 0;
    z-index: 10;
}

table tbody tr {
    transition: all var(--transition-fast);
}

table tbody tr:hover {
    background: rgba(102, 126, 234, 0.08);
    transform: scale(1.01);
}

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

table tbody tr td:first-child {
    font-weight: 600;
}

/* =============================================================================
   Alerts
   ============================================================================= */

.alert {
    padding: 16px 20px;
    border-radius: 12px;
    margin-bottom: 20px;
    border-left: 4px solid;
    display: flex;
    align-items: flex-start;
    gap: 12px;
    backdrop-filter: blur(8px);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    transition: all var(--transition-fast);
}

.alert:hover {
    transform: translateX(4px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.alert-success {
    background: rgba(16, 185, 129, 0.15);
    border-left-color: var(--success);
    border: 1px solid rgba(16, 185, 129, 0.3);
    border-left-width: 4px;
    color: var(--success);
}

.alert-error {
    background: rgba(239, 68, 68, 0.15);
    border-left-color: var(--danger);
    border: 1px solid rgba(239, 68, 68, 0.3);
    border-left-width: 4px;
    color: var(--danger);
}

.alert-warning {
    background: rgba(245, 158, 11, 0.15);
    border-left-color: var(--warning);
    border: 1px solid rgba(245, 158, 11, 0.3);
    border-left-width: 4px;
    color: var(--warning);
}

.alert-info {
    background: rgba(59, 130, 246, 0.15);
    border-left-color: var(--info);
    border: 1px solid rgba(59, 130, 246, 0.3);
    border-left-width: 4px;
    color: var(--info);
}

/* =============================================================================
   Loading States
   ============================================================================= */

.loading {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 40px;
    color: var(--text-secondary);
}

.spinner {
    border: 3px solid var(--border);
    border-top: 3px solid var(--primary);
    border-right: 3px solid transparent;
    border-radius: 50%;
    width: 40px;
    height: 40px;
    animation: spin 0.8s linear infinite;
    margin: 0 auto 15px;
    box-shadow: 0 0 20px rgba(102, 126, 234, 0.3);
}

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

/* =============================================================================
   Utility Classes
   ============================================================================= */

.text-secondary {
    color: var(--text-secondary);
    margin-bottom: 15px;
}

/* =============================================================================
   Scrollbar
   ============================================================================= */

::-webkit-scrollbar {
    width: 10px;
    height: 10px;
}

::-webkit-scrollbar-track {
    background: var(--dark-card);
}

::-webkit-scrollbar-thumb {
    background: var(--gradient-purple);
    border-radius: 5px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--primary-light);
}

/* =============================================================================
   Responsive Design (Mobile First)
   ============================================================================= */

@media (max-width: 768px) {
    /* Hide sidebar by default on mobile */
    .sidebar {
        transform: translateX(-100%);
    }
    
    .sidebar.active {
        transform: translateX(0);
    }
    
    .sidebar-toggle-btn {
        display: flex;
        align-items: center;
        justify-content: center;
    }
    
    /* Show hamburger button */
    .hamburger-btn {
        display: flex;
    }
    
    /* Adjust main wrapper */
    .main-wrapper {
        margin-left: 0;
    }
    
    /* Adjust content padding */
    .content-area {
        padding: 15px;
    }
    
    .top-header {
        padding: 15px 20px;
    }
    
    /* Adjust grids */
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .grid-2 {
        grid-template-columns: 1fr;
    }
    
    /* Adjust stat cards */
    .stat-card {
        flex-direction: column;
        text-align: center;
    }
    
    .stat-card .stat-icon {
        width: 60px;
        height: 60px;
        font-size: 28px;
    }
    
    /* Adjust header title */
    .header-title h2 {
        font-size: 18px;
    }
    
    .header-title p {
        font-size: 11px;
    }
}

/* Tablet adjustments */
@media (min-width: 769px) and (max-width: 1024px) {
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* =============================================================================
   Large Screen Optimizations (1440px+)
   ============================================================================= */

@media (min-width: 1440px) {
    :root {
        --sidebar-width: 320px;
    }
    
    body {
        font-size: 16px;
    }
    
    .sidebar-header {
        padding: 30px 25px;
    }
    
    .sidebar-logo .logo-icon {
        width: 50px;
        height: 50px;
        font-size: 24px;
    }
    
    .sidebar-logo .logo-text h1 {
        font-size: 22px;
    }
    
    .sidebar-logo .logo-text p {
        font-size: 12px;
    }
    
    .nav-item {
        padding: 16px 20px;
        font-size: 16px;
        gap: 14px;
    }
    
    .nav-item svg {
        width: 22px;
        height: 22px;
    }
    
    .top-header {
        padding: 25px 40px;
    }
    
    .header-title h2 {
        font-size: 28px;
    }
    
    .header-title p {
        font-size: 14px;
    }
    
    .icon-btn {
        width: 44px;
        height: 44px;
        font-size: 18px;
    }
    
    .content-area {
        padding: 40px;
    }
    
    .glass-card {
        padding: 30px;
        border-radius: 18px;
        margin-bottom: 25px;
    }
    
    .glass-card h3 {
        font-size: 24px;
        margin-bottom: 25px;
        padding-bottom: 12px;
    }
    
    .stats-grid {
        grid-template-columns: repeat(4, 1fr);
        gap: 25px;
    }
    
    .stat-card {
        padding: 30px;
        border-radius: 18px;
    }
    
    .stat-icon {
        width: 80px;
        height: 80px;
        font-size: 36px;
    }
    
    .stat-value {
        font-size: 42px;
    }
    
    .stat-label {
        font-size: 15px;
    }
    
    .stat-trend {
        font-size: 13px;
    }
    
    .grid-2 {
        grid-template-columns: repeat(auto-fit, minmax(450px, 1fr));
        gap: 25px;
    }
    
    .form-group {
        margin-bottom: 25px;
    }
    
    .form-group label {
        font-size: 15px;
        margin-bottom: 10px;
    }
    
    .form-group input,
    .form-group textarea,
    .form-group select {
        padding: 14px;
        font-size: 15px;
        border-radius: 12px;
    }
    
    .btn-primary, .btn-refresh {
        padding: 14px 28px;
        font-size: 15px;
        border-radius: 12px;
    }
    
    .news-card {
        padding: 25px;
        border-radius: 18px;
        gap: 25px;
    }
    
    .news-card-image {
        width: 140px;
        height: 140px;
        font-size: 36px;
    }
    
    .news-card-title {
        font-size: 20px;
    }
    
    .news-card-excerpt {
        font-size: 15px;
    }
    
    .sentiment-gauge-container {
        width: 350px;
        height: 175px;
    }
    
    .ai-result-card {
        padding: 30px;
    }
    
    .ai-result-header h4 {
        font-size: 24px;
    }
    
    .ai-result-metric-value {
        font-size: 42px;
    }
}

/* =============================================================================
   Extra Large Screen Optimizations (1920px+)
   ============================================================================= */

@media (min-width: 1920px) {
    :root {
        --sidebar-width: 360px;
    }
    
    body {
        font-size: 17px;
    }
    
    .sidebar-header {
        padding: 35px 30px;
    }
    
    .sidebar-logo .logo-icon {
        width: 55px;
        height: 55px;
        font-size: 26px;
    }
    
    .sidebar-logo .logo-text h1 {
        font-size: 24px;
    }
    
    .sidebar-logo .logo-text p {
        font-size: 13px;
    }
    
    .nav-item {
        padding: 18px 24px;
        font-size: 17px;
        gap: 16px;
        margin-bottom: 10px;
    }
    
    .nav-item svg {
        width: 24px;
        height: 24px;
    }
    
    .top-header {
        padding: 30px 50px;
    }
    
    .header-title h2 {
        font-size: 32px;
    }
    
    .header-title p {
        font-size: 15px;
    }
    
    .icon-btn {
        width: 48px;
        height: 48px;
        font-size: 20px;
    }
    
    .content-area {
        padding: 50px;
        max-width: 1920px;
        margin: 0 auto;
    }
    
    .glass-card {
        padding: 35px;
        border-radius: 20px;
        margin-bottom: 30px;
    }
    
    .glass-card h3 {
        font-size: 26px;
        margin-bottom: 30px;
        padding-bottom: 15px;
    }
    
    .stats-grid {
        grid-template-columns: repeat(4, 1fr);
        gap: 30px;
        margin-bottom: 40px;
    }
    
    .stat-card {
        padding: 35px;
        border-radius: 20px;
        gap: 25px;
    }
    
    .stat-icon {
        width: 90px;
        height: 90px;
        font-size: 40px;
    }
    
    .stat-value {
        font-size: 48px;
    }
    
    .stat-label {
        font-size: 16px;
    }
    
    .stat-trend {
        font-size: 14px;
    }
    
    .grid-2 {
        grid-template-columns: repeat(auto-fit, minmax(500px, 1fr));
        gap: 30px;
    }
    
    .form-group {
        margin-bottom: 30px;
    }
    
    .form-group label {
        font-size: 16px;
        margin-bottom: 12px;
    }
    
    .form-group input,
    .form-group textarea,
    .form-group select {
        padding: 16px;
        font-size: 16px;
        border-radius: 14px;
    }
    
    .btn-primary, .btn-refresh {
        padding: 16px 32px;
        font-size: 16px;
        border-radius: 14px;
    }
    
    .news-card {
        padding: 30px;
        border-radius: 20px;
        gap: 30px;
        margin-bottom: 25px;
    }
    
    .news-card-image {
        width: 160px;
        height: 160px;
        font-size: 40px;
    }
    
    .news-card-title {
        font-size: 22px;
    }
    
    .news-card-excerpt {
        font-size: 16px;
    }
    
    .sentiment-gauge-container {
        width: 400px;
        height: 200px;
    }
    
    .ai-result-card {
        padding: 35px;
    }
    
    .ai-result-header h4 {
        font-size: 26px;
    }
    
    .ai-result-metric-value {
        font-size: 48px;
    }
    
    table th,
    table td {
        padding: 16px;
        font-size: 16px;
    }
}

/* =============================================================================
   Ultra-Wide Screen Optimizations (2560px+)
   ============================================================================= */

@media (min-width: 2560px) {
    :root {
        --sidebar-width: 400px;
    }
    
    body {
        font-size: 18px;
    }
    
    .sidebar-header {
        padding: 40px 35px;
    }
    
    .sidebar-logo .logo-icon {
        width: 60px;
        height: 60px;
        font-size: 28px;
    }
    
    .sidebar-logo .logo-text h1 {
        font-size: 26px;
    }
    
    .sidebar-logo .logo-text p {
        font-size: 14px;
    }
    
    .nav-item {
        padding: 20px 28px;
        font-size: 18px;
        gap: 18px;
        margin-bottom: 12px;
        border-radius: 14px;
    }
    
    .nav-item svg {
        width: 26px;
        height: 26px;
    }
    
    .top-header {
        padding: 35px 60px;
    }
    
    .header-title h2 {
        font-size: 36px;
    }
    
    .header-title p {
        font-size: 16px;
    }
    
    .icon-btn {
        width: 52px;
        height: 52px;
        font-size: 22px;
    }
    
    .content-area {
        padding: 60px;
        max-width: 2400px;
    }
    
    .glass-card {
        padding: 40px;
        border-radius: 24px;
        margin-bottom: 35px;
    }
    
    .glass-card h3 {
        font-size: 28px;
        margin-bottom: 35px;
        padding-bottom: 18px;
    }
    
    .stats-grid {
        grid-template-columns: repeat(4, 1fr);
        gap: 35px;
        margin-bottom: 50px;
    }
    
    .stat-card {
        padding: 40px;
        border-radius: 24px;
        gap: 30px;
    }
    
    .stat-icon {
        width: 100px;
        height: 100px;
        font-size: 44px;
    }
    
    .stat-value {
        font-size: 54px;
    }
    
    .stat-label {
        font-size: 17px;
    }
    
    .stat-trend {
        font-size: 15px;
    }
    
    .grid-2 {
        grid-template-columns: repeat(auto-fit, minmax(600px, 1fr));
        gap: 35px;
    }
    
    .form-group {
        margin-bottom: 35px;
    }
    
    .form-group label {
        font-size: 17px;
        margin-bottom: 14px;
    }
    
    .form-group input,
    .form-group textarea,
    .form-group select {
        padding: 18px;
        font-size: 17px;
        border-radius: 16px;
    }
    
    .btn-primary, .btn-refresh {
        padding: 18px 36px;
        font-size: 17px;
        border-radius: 16px;
    }
    
    .news-card {
        padding: 35px;
        border-radius: 24px;
        gap: 35px;
        margin-bottom: 30px;
    }
    
    .news-card-image {
        width: 180px;
        height: 180px;
        font-size: 44px;
    }
    
    .news-card-title {
        font-size: 24px;
    }
    
    .news-card-excerpt {
        font-size: 17px;
    }
    
    .sentiment-gauge-container {
        width: 450px;
        height: 225px;
    }
    
    .ai-result-card {
        padding: 40px;
    }
    
    .ai-result-header h4 {
        font-size: 28px;
    }
    
    .ai-result-metric-value {
        font-size: 54px;
    }
    
    table th,
    table td {
        padding: 18px;
        font-size: 17px;
    }
}

/* =============================================================================
   Light Theme
   ============================================================================= */

body.light-theme {
    --dark: #f3f4f6;
    --dark-card: #ffffff;
    --dark-hover: #f9fafb;
    --dark-elevated: #e5e7eb;
    --text-primary: #111827;
    --text-secondary: #6b7280;
    --text-muted: #9ca3af;
    --border: rgba(0, 0, 0, 0.1);
    --border-light: rgba(0, 0, 0, 0.05);
    --shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 20px 60px rgba(0, 0, 0, 0.15);
    background: linear-gradient(135deg, #f3f4f6 0%, #e5e7eb 50%, #d1d5db 100%);
}

body.light-theme::before {
    background-image: 
        radial-gradient(circle at 20% 50%, rgba(102, 126, 234, 0.08) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(240, 147, 251, 0.08) 0%, transparent 50%),
        radial-gradient(circle at 40% 20%, rgba(59, 130, 246, 0.08) 0%, transparent 50%);
}

body.light-theme .sidebar {
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.95) 0%, rgba(249, 250, 251, 0.9) 100%);
}

body.light-theme .top-header {
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.9) 0%, rgba(249, 250, 251, 0.7) 100%);
}

body.light-theme .glass-card,
body.light-theme .stat-card {
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(10px);
}

body.light-theme .form-group input,
body.light-theme .form-group textarea,
body.light-theme .form-group select {
    background: rgba(249, 250, 251, 0.8);
}

body.light-theme table th {
    background: rgba(249, 250, 251, 0.8);
}

body.light-theme ::-webkit-scrollbar-track {
    background: #e5e7eb;
}

/* =============================================================================
   News Cards - Modern Design
   ============================================================================= */

.news-card {
    background: rgba(17, 24, 39, 0.6);
    backdrop-filter: blur(10px);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 20px;
    margin-bottom: 20px;
    display: flex;
    gap: 20px;
    transition: all var(--transition-normal);
    cursor: pointer;
}

.news-card:hover {
    border-color: rgba(102, 126, 234, 0.5);
    box-shadow: 0 8px 32px rgba(102, 126, 234, 0.2);
    transform: translateY(-2px);
}

.news-card-image {
    width: 120px;
    height: 120px;
    border-radius: 12px;
    object-fit: cover;
    flex-shrink: 0;
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 32px;
}

.news-card-content {
    flex: 1;
    min-width: 0;
}

.news-card-title {
    font-size: 20px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 12px;
    line-height: 1.5;
    letter-spacing: -0.01em;
}

.news-card-title a {
    color: var(--text-primary);
    text-decoration: none;
    transition: color var(--transition-fast);
}

.news-card-title a:hover {
    color: var(--primary);
}

.news-card-excerpt {
    color: var(--text-secondary);
    font-size: 14px;
    line-height: 1.6;
    margin-bottom: 12px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.news-card-meta {
    display: flex;
    align-items: center;
    gap: 15px;
    flex-wrap: wrap;
    font-size: 12px;
    color: var(--text-muted);
}

.news-card-source {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 4px 10px;
    background: rgba(102, 126, 234, 0.1);
    border-radius: 6px;
    font-weight: 600;
}

.news-card-time {
    display: flex;
    align-items: center;
    gap: 6px;
}

.news-card-time svg {
    width: 14px;
    height: 14px;
}

.news-card-symbols {
    display: flex;
    gap: 6px;
    flex-wrap: wrap;
}

.symbol-badge {
    padding: 3px 8px;
    background: rgba(59, 130, 246, 0.15);
    border: 1px solid rgba(59, 130, 246, 0.3);
    border-radius: 4px;
    font-size: 11px;
    font-weight: 600;
    color: var(--info);
}

/* =============================================================================
   Sentiment Visualizations
   ============================================================================= */

.sentiment-gauge-container {
    position: relative;
    width: 300px;
    height: 150px;
    margin: 20px auto;
}

.sentiment-gauge {
    width: 100%;
    height: 100%;
}

.sentiment-trend-arrow {
    display: inline-block;
    width: 24px;
    height: 24px;
    margin: 0 8px;
    vertical-align: middle;
    animation: pulse-arrow 2s ease-in-out infinite;
}

.sentiment-trend-arrow.bullish {
    color: var(--success);
}

.sentiment-trend-arrow.bearish {
    color: var(--danger);
    transform: rotate(180deg);
}

.sentiment-trend-arrow.neutral {
    color: var(--warning);
    transform: rotate(90deg);
}

@keyframes pulse-arrow {
    0%, 100% { transform: translateY(0); opacity: 1; }
    50% { transform: translateY(-5px); opacity: 0.7; }
}

.confidence-bar-container {
    margin: 15px 0;
}

.confidence-bar-label {
    display: flex;
    justify-content: space-between;
    margin-bottom: 8px;
    font-size: 13px;
    color: var(--text-secondary);
}

.confidence-bar {
    width: 100%;
    height: 12px;
    background: rgba(31, 41, 55, 0.6);
    border-radius: 6px;
    overflow: hidden;
    position: relative;
}

.confidence-bar-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--primary), var(--primary-light));
    border-radius: 6px;
    transition: width 1s ease-out;
    position: relative;
    overflow: hidden;
}

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

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

.sentiment-badge {
    display: inline-block;
    padding: 6px 12px;
    border-radius: 6px;
    font-size: 12px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.sentiment-badge.bullish,
.sentiment-badge.positive {
    background: rgba(16, 185, 129, 0.2);
    border: 1px solid rgba(16, 185, 129, 0.4);
    color: var(--success);
}

.sentiment-badge.bearish,
.sentiment-badge.negative {
    background: rgba(239, 68, 68, 0.2);
    border: 1px solid rgba(239, 68, 68, 0.4);
    color: var(--danger);
}

.sentiment-badge.neutral {
    background: rgba(245, 158, 11, 0.2);
    border: 1px solid rgba(245, 158, 11, 0.4);
    color: var(--warning);
}

.ai-result-card {
    background: rgba(17, 24, 39, 0.6);
    backdrop-filter: blur(10px);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 25px;
    margin-top: 20px;
}

.ai-result-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
    padding-bottom: 15px;
    border-bottom: 1px solid var(--border);
}

.ai-result-header h4 {
    font-size: 20px;
    font-weight: 700;
    color: var(--text-primary);
}

.ai-result-metric {
    text-align: center;
}

.ai-result-metric-value {
    font-size: 36px;
    font-weight: 800;
    margin-bottom: 5px;
}

.ai-result-metric-label {
    font-size: 13px;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* =============================================================================
   Utility Classes
   ============================================================================= */

.time-ago {
    color: var(--text-muted);
    font-size: 12px;
    display: inline-flex;
    align-items: center;
    gap: 4px;
}

.icon-btn svg {
    width: 18px;
    height: 18px;
    stroke-width: 2;
}

.hamburger-btn svg {
    width: 24px;
    height: 24px;
    stroke-width: 2;
}

.sidebar-toggle-btn svg {
    width: 20px;
    height: 20px;
    stroke-width: 2;
}

.btn-primary svg,
.btn-refresh svg {
    width: 16px;
    height: 16px;
    stroke-width: 2;
    vertical-align: middle;
}

/* Model Status Styles */
.model-status {
    display: inline-block;
    padding: 4px 10px;
    border-radius: 6px;
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.model-status.available {
    background: rgba(16, 185, 129, 0.2);
    border: 1px solid rgba(16, 185, 129, 0.4);
    color: var(--success);
}

.model-status.unavailable {
    background: rgba(239, 68, 68, 0.2);
    border: 1px solid rgba(239, 68, 68, 0.4);
    color: var(--danger);
}

/* Ensure stat values are always visible */
.stat-value:empty::before {
    content: '0';
    opacity: 0.5;
}

.stat-mini span:empty::before {
    content: '-';
    opacity: 0.5;
}

/* Responsive adjustments for news cards */
@media (max-width: 768px) {
    .news-card {
        flex-direction: column;
    }
    
    .news-card-image {
        width: 100%;
        height: 200px;
    }
    
    .sentiment-gauge-container {
        width: 100%;
}

/* ===== DIAGNOSTICS STYLES ===== */

/* Navigation Sections */
.nav-section {
    margin-bottom: 10px;
    padding-top: 8px;
    border-top: 1px solid rgba(255, 255, 255, 0.06);
}

.nav-section-header {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 12px 8px;
    color: var(--text-secondary);
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    opacity: 0.9;
}

.nav-section-header svg {
    opacity: 0.7;
}

.nav-section-items {
    display: flex;
    flex-direction: column;
    gap: 4px;
    margin-left: 6px;
}

.nav-subitem {
    padding-left: 28px !important;
    font-size: 13px !important;
    opacity: 0.92;
    border-left: 2px solid transparent;
}

.nav-subitem:hover {
    opacity: 1;
}

.nav-subitem.active {
    border-left-color: rgba(255, 255, 255, 0.35);
}

/* Diagnostic Header */
.diagnostic-header {
    margin-bottom: 24px;
}

.diagnostic-title h2 {
    color: var(--text-primary);
    font-size: 28px;
    font-weight: 700;
    margin: 0 0 8px 0;
}

.diagnostic-title p {
    color: var(--text-secondary);
    font-size: 16px;
    margin: 0;
}

/* Status Cards Grid */
.status-cards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 16px;
    margin-bottom: 32px;
}

.status-card {
    background: var(--dark-card);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 20px;
    display: flex;
    align-items: center;
    gap: 16px;
    transition: var(--transition-normal);
}

.status-card:hover {
    border-color: var(--primary);
    box-shadow: var(--glow);
}

.status-icon {
    font-size: 32px;
    opacity: 0.8;
}

.status-content {
    flex: 1;
}

.status-label {
    color: var(--text-secondary);
    font-size: 14px;
    margin-bottom: 4px;
}

.status-value {
    color: var(--text-primary);
    font-size: 18px;
    font-weight: 600;
}

/* Diagnostic Actions - Removed custom styles, using standard button classes */

/* Diagnostic Tab Buttons */
.diagnostic-tab-btn {
    padding: 12px 24px;
    background: transparent;
    border: none;
    border-bottom: 3px solid transparent;
    color: var(--text-secondary);
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-fast);
    font-size: 14px;
    position: relative;
    letter-spacing: 0.01em;
}

.diagnostic-tab-btn::after {
    content: '';
    position: absolute;
    bottom: -3px;
    left: 0;
    width: 0;
    height: 3px;
    background: var(--gradient-purple);
    transition: width var(--transition-normal);
}

.diagnostic-tab-btn:hover {
    color: var(--text-primary);
    background: rgba(102, 126, 234, 0.08);
}

.diagnostic-tab-btn:hover::after {
    width: 100%;
}

.diagnostic-tab-btn.active {
    color: var(--primary);
    background: rgba(102, 126, 234, 0.1);
}

.diagnostic-tab-btn.active::after {
    width: 100%;
}

.diagnostic-tab-content {
    display: none;
}

.diagnostic-tab-content.active {
    display: block;
}

/* Sentiment Analysis Enhancements */
@keyframes pulse-glow {
    0%, 100% {
        box-shadow: 0 0 20px rgba(102, 126, 234, 0.3);
    }
    50% {
        box-shadow: 0 0 40px rgba(102, 126, 234, 0.6);
    }
}

@keyframes progress-fill {
    from {
        width: 0%;
    }
}

.sentiment-gauge {
    position: relative;
    width: 200px;
    height: 200px;
    margin: 0 auto;
}

.sentiment-progress-bar {
    position: relative;
    height: 24px;
    background: rgba(0, 0, 0, 0.3);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: inset 0 2px 4px rgba(0, 0, 0, 0.3);
}

.sentiment-progress-fill {
    height: 100%;
    border-radius: 12px;
    transition: width 1s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
}

.sentiment-progress-fill::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    animation: shimmer 2s infinite;
}

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

@keyframes pulse {
    0%, 100% {
        opacity: 0.3;
    }
    50% {
        opacity: 0.6;
    }
}

/* Health Status Badge */
.health-badge {
    display: inline-block;
    padding: 4px 12px;
    border-radius: 12px;
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
}

.health-badge.healthy {
    background: rgba(16, 185, 129, 0.2);
    color: var(--success);
}

.health-badge.degraded {
    background: rgba(245, 158, 11, 0.2);
    color: var(--warning);
}

.health-badge.unavailable {
    background: rgba(239, 68, 68, 0.2);
    color: var(--danger);
}

.health-badge.unknown {
    background: rgba(107, 114, 128, 0.2);
    color: var(--text-secondary);
}

/* Test Progress */
#test-progress {
    display: flex;
    align-items: center;
    gap: 12px;
    color: var(--text-secondary);
    font-size: 14px;
}

.spinner {
    width: 16px;
    height: 16px;
    border: 2px solid var(--border);
    border-top: 2px solid var(--primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

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

/* Diagnostic Output */
.diagnostic-output-section {
    margin-bottom: 32px;
}

.diagnostic-output-container {
    max-height: 500px;
    overflow-y: auto;
    border: 1px solid var(--border);
    border-radius: 8px;
    background: var(--dark);
}

.diagnostic-output {
    font-family: 'JetBrains Mono', 'Courier New', monospace;
    font-size: 14px;
    line-height: 1.5;
    color: var(--text-primary);
    margin: 0;
    padding: 16px;
    white-space: pre-wrap;
    word-wrap: break-word;
    background: transparent;
    border: none;
    min-height: 300px;
}

/* Diagnostic Summary */
.diagnostic-summary {
    margin-top: 24px;
}

.summary-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 16px;
    margin-bottom: 16px;
}

.summary-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 16px;
    background: var(--dark-hover);
    border-radius: 8px;
    border: 1px solid var(--border);
}

.summary-label {
    color: var(--text-secondary);
    font-weight: 500;
}

.summary-value {
    color: var(--text-primary);
    font-weight: 600;
}

/* Responsive Design */
@media (max-width: 768px) {
    .diagnostic-title h2 {
        font-size: 24px;
    }

    .status-cards-grid {
        grid-template-columns: 1fr;
    }

    /* Diagnostic actions use standard button classes, no special mobile handling needed */

    .summary-grid {
        grid-template-columns: 1fr;
    }

    .nav-subitem {
        padding-left: 24px !important;
    }
}

@media (max-width: 480px) {
    .diagnostic-output {
        font-size: 12px;
        padding: 12px;
    }

    .status-card {
        padding: 16px;
        flex-direction: column;
        text-align: center;
        gap: 12px;
    }
}

/* ===== PLACEHOLDER PAGE STYLES ===== */

.placeholder-page {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 500px;
    padding: 80px 20px;
    text-align: center;
    background: rgba(17, 24, 39, 0.3);
    border-radius: 18px;
    border: 2px dashed var(--border);
}

.placeholder-icon {
    font-size: 96px;
    margin-bottom: 32px;
    opacity: 0.7;
    animation: float 3s ease-in-out infinite;
    filter: drop-shadow(0 4px 12px rgba(102, 126, 234, 0.3));
}

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

.placeholder-page h2 {
    color: var(--text-primary);
    font-size: 36px;
    font-weight: 800;
    margin: 0 0 20px 0;
    letter-spacing: -0.02em;
    background: linear-gradient(135deg, var(--text-primary), rgba(255, 255, 255, 0.7));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.placeholder-page p {
    color: var(--text-secondary);
    font-size: 18px;
    margin: 0 0 12px 0;
    max-width: 600px;
    line-height: 1.6;
}

.placeholder-page .text-secondary {
    color: var(--text-muted);
    font-size: 15px;
    margin-bottom: 40px;
    line-height: 1.6;
}

.placeholder-page .btn-primary {
    margin-top: 16px;
}

/* =============================================================================
   System Status Display
   ============================================================================= */

.system-status-container {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.system-status-header {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 20px;
    border-radius: 12px;
    background: rgba(31, 41, 55, 0.5);
    border: 1px solid var(--border);
    backdrop-filter: blur(8px);
}

.system-status-header.alert-success {
    background: rgba(16, 185, 129, 0.1);
    border-color: rgba(16, 185, 129, 0.3);
}

.system-status-header.alert-warning {
    background: rgba(245, 158, 11, 0.1);
    border-color: rgba(245, 158, 11, 0.3);
}

.system-status-header.alert-error {
    background: rgba(239, 68, 68, 0.1);
    border-color: rgba(239, 68, 68, 0.3);
}

.status-icon-wrapper {
    width: 48px;
    height: 48px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(102, 126, 234, 0.2);
    flex-shrink: 0;
}

.system-status-header.alert-success .status-icon-wrapper {
    background: rgba(16, 185, 129, 0.2);
    color: var(--success);
}

.system-status-header.alert-warning .status-icon-wrapper {
    background: rgba(245, 158, 11, 0.2);
    color: var(--warning);
}

.system-status-header.alert-error .status-icon-wrapper {
    background: rgba(239, 68, 68, 0.2);
    color: var(--danger);
}

.status-icon-wrapper svg {
    width: 24px;
    height: 24px;
}

.status-title {
    font-size: 13px;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    font-weight: 600;
    margin-bottom: 4px;
}

.status-value {
    font-size: 24px;
    font-weight: 700;
    color: var(--text-primary);
    letter-spacing: -0.02em;
}

.system-status-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 16px;
}

.status-item {
    padding: 16px;
    background: rgba(31, 41, 55, 0.4);
    border: 1px solid var(--border);
    border-radius: 12px;
    backdrop-filter: blur(8px);
    transition: all var(--transition-fast);
}

.status-item:hover {
    background: rgba(31, 41, 55, 0.6);
    border-color: rgba(102, 126, 234, 0.3);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}

.status-item.status-full-width {
    grid-column: 1 / -1;
}

.status-item.status-online {
    border-left: 3px solid var(--success);
}

.status-item.status-degraded {
    border-left: 3px solid var(--warning);
}

.status-item.status-offline {
    border-left: 3px solid var(--danger);
}

.status-item-label {
    font-size: 12px;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    font-weight: 600;
    margin-bottom: 8px;
}

.status-item-value {
    font-size: 28px;
    font-weight: 800;
    color: var(--text-primary);
    letter-spacing: -0.03em;
    line-height: 1.2;
}

.status-item-value.status-time {
    font-size: 16px;
    font-weight: 600;
    font-family: 'JetBrains Mono', monospace;
    color: var(--text-secondary);
}

.status-online .status-item-value {
    color: var(--success);
}

.status-degraded .status-item-value {
    color: var(--warning);
}

.status-offline .status-item-value {
    color: var(--danger);
}

@media (max-width: 768px) {
    .system-status-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .status-item-value {
        font-size: 24px;
    }
    
    .status-value {
        font-size: 20px;
    }
}

/* =============================================================================
   Trending Coins Display
   ============================================================================= */

.trending-coins-grid {
    display: grid;
    gap: 16px;
}

.trending-coin-card {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 18px;
    background: rgba(31, 41, 55, 0.6);
    border: 1px solid var(--border);
    border-radius: 14px;
    border-left: 4px solid var(--primary);
    backdrop-filter: blur(8px);
    transition: all var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.trending-coin-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    background: var(--gradient-purple);
    opacity: 0;
    transition: opacity var(--transition-normal);
}

.trending-coin-card:hover {
    background: rgba(31, 41, 55, 0.8);
    border-color: rgba(102, 126, 234, 0.4);
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(102, 126, 234, 0.2);
}

.trending-coin-card:hover::before {
    opacity: 1;
}

.trending-coin-rank {
    font-size: 20px;
    font-weight: 800;
    color: var(--primary);
    min-width: 40px;
    text-align: center;
    background: rgba(102, 126, 234, 0.15);
    border-radius: 10px;
    padding: 8px 12px;
    flex-shrink: 0;
}

.trending-coin-content {
    display: flex;
    align-items: center;
    gap: 14px;
    flex: 1;
    min-width: 0;
}

.trending-coin-thumb {
    width: 40px;
    height: 40px;
    border-radius: 10px;
    object-fit: cover;
    flex-shrink: 0;
    border: 1px solid var(--border);
}

.trending-coin-info {
    flex: 1;
    min-width: 0;
}

.trending-coin-name {
    display: flex;
    align-items: baseline;
    gap: 10px;
    margin-bottom: 6px;
    flex-wrap: wrap;
}

.trending-coin-name strong {
    font-size: 16px;
    font-weight: 700;
    color: var(--text-primary);
    letter-spacing: -0.01em;
}

.trending-coin-fullname {
    font-size: 14px;
    color: var(--text-secondary);
    font-weight: 500;
}

.trending-coin-meta {
    font-size: 12px;
    color: var(--text-muted);
    font-weight: 500;
    margin-top: 4px;
}

.trending-coin-score {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    gap: 4px;
    flex-shrink: 0;
    padding-left: 16px;
    border-left: 1px solid var(--border);
}

.trending-coin-score-value {
    font-size: 22px;
    font-weight: 800;
    color: var(--success);
    letter-spacing: -0.02em;
    line-height: 1;
}

.trending-coin-score-label {
    font-size: 11px;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    font-weight: 600;
}

@media (max-width: 768px) {
    .trending-coin-card {
        flex-direction: column;
        align-items: flex-start;
        gap: 12px;
    }
    
    .trending-coin-rank {
        align-self: flex-start;
    }
    
    .trending-coin-score {
        align-self: flex-end;
        border-left: none;
        border-top: 1px solid var(--border);
        padding-left: 0;
        padding-top: 12px;
        width: 100%;
        flex-direction: row;
        justify-content: space-between;
        align-items: center;
    }
    
    .trending-coin-name {
        flex-direction: column;
        gap: 4px;
    }
}

/* =============================================================================
   Help / API Reference
   ============================================================================= */

.help-page-shell {
    display: grid;
    gap: 16px;
}

.help-hero-card {
    display: grid;
    gap: 16px;
}

.help-hero-top {
    display: flex;
    justify-content: space-between;
    gap: 16px;
    align-items: flex-start;
}

.help-kicker {
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--text-secondary);
    margin-bottom: 6px;
}

.help-hero-card h3 {
    margin-bottom: 10px;
}

.help-hero-card p {
    max-width: 72ch;
}

.help-hero-actions {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
    justify-content: flex-end;
}

.help-action-btn,
.help-copy-btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.help-stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
    gap: 12px;
}

.help-stat-card {
    padding: 14px 16px;
    border: 1px solid var(--border);
    border-radius: 12px;
    background: rgba(255, 255, 255, 0.03);
    display: grid;
    gap: 4px;
}

.help-stat-label {
    color: var(--text-secondary);
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 0.06em;
}

.help-toolbar {
    display: flex;
    justify-content: space-between;
    gap: 16px;
    align-items: center;
    flex-wrap: wrap;
}

.help-search {
    display: flex;
    align-items: center;
    gap: 10px;
    flex: 1;
    min-width: 260px;
    padding: 12px 14px;
    border: 1px solid var(--border);
    border-radius: 12px;
    background: rgba(255, 255, 255, 0.04);
}

.help-search input {
    width: 100%;
    border: none;
    outline: none;
    background: transparent;
    color: var(--text-primary);
    font: inherit;
}

.help-toolbar-meta {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.help-layout {
    display: grid;
    grid-template-columns: 220px minmax(0, 1fr);
    gap: 16px;
    align-items: start;
}

.help-nav {
    position: sticky;
    top: 16px;
    display: grid;
    gap: 8px;
}

.help-nav-link {
    width: 100%;
    text-align: left;
    padding: 11px 12px;
    border: 1px solid transparent;
    border-radius: 10px;
    background: rgba(255, 255, 255, 0.02);
    color: var(--text-secondary);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.help-nav-link:hover {
    color: var(--text-primary);
    border-color: var(--border);
    background: rgba(255, 255, 255, 0.06);
}

.help-content {
    display: grid;
    gap: 16px;
}

.help-section {
    display: grid;
    gap: 16px;
}

.help-section-head {
    display: flex;
    justify-content: space-between;
    gap: 12px;
    align-items: flex-start;
}

.help-flow {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 10px;
}

.help-flow-step {
    padding: 10px 12px;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid var(--border);
    font-size: 13px;
}

.help-flow-arrow {
    color: var(--primary-light);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    opacity: 0.9;
}

.help-grid-2 {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 16px;
}

.help-list {
    display: grid;
    gap: 10px;
    color: var(--text-secondary);
    padding-left: 18px;
}

.help-card-grid,
.help-model-grid,
.help-example-grid {
    display: grid;
    gap: 14px;
}

.help-service-card,
.help-model-card,
.help-example-card {
    padding: 16px;
}

.help-service-title,
.help-model-head,
.help-example-head {
    display: flex;
    justify-content: space-between;
    gap: 12px;
    align-items: flex-start;
    margin-bottom: 10px;
}

.help-service-title h4,
.help-model-head h4,
.help-example-head h4 {
    margin-bottom: 6px;
}

.help-route-group {
    border: 1px solid var(--border);
    border-radius: 14px;
    overflow: hidden;
    background: rgba(255, 255, 255, 0.02);
}

.help-route-group + .help-route-group {
    margin-top: 12px;
}

.help-route-group > summary {
    list-style: none;
    cursor: pointer;
    padding: 14px 16px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    background: rgba(255, 255, 255, 0.03);
}

.help-route-group > summary::-webkit-details-marker {
    display: none;
}

.help-route-list {
    display: grid;
    gap: 12px;
    padding: 12px;
}

.help-route-card {
    border: 1px solid var(--border);
    border-radius: 12px;
    background: rgba(0, 0, 0, 0.14);
    overflow: hidden;
}

.help-route-card > summary {
    cursor: pointer;
    list-style: none;
    padding: 14px 16px;
    display: grid;
    gap: 8px;
}

.help-route-card > summary::-webkit-details-marker {
    display: none;
}

.help-route-summary {
    display: flex;
    gap: 10px;
    align-items: center;
    flex-wrap: wrap;
}

.help-route-path {
    font-family: 'JetBrains Mono', monospace;
    color: var(--text-primary);
    word-break: break-word;
}

.help-route-summary-meta {
    display: flex;
    gap: 8px;
    align-items: center;
    flex-wrap: wrap;
    color: var(--text-secondary);
    font-size: 13px;
}

.help-route-body {
    padding: 0 16px 16px;
    display: grid;
    gap: 14px;
}

.help-route-description,
.help-muted {
    color: var(--text-secondary);
}

.help-copy-row {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

.help-copy-btn {
    border: 1px solid var(--border);
    border-radius: 10px;
    background: rgba(255, 255, 255, 0.05);
    color: var(--text-primary);
    padding: 9px 11px;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.help-copy-btn:hover {
    background: rgba(255, 255, 255, 0.1);
    transform: translateY(-1px);
}

.help-code-block {
    border: 1px solid var(--border);
    border-radius: 12px;
    overflow: hidden;
    background: rgba(0, 0, 0, 0.22);
}

.help-code-head {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 10px;
    padding: 10px 12px;
    border-bottom: 1px solid var(--border);
}

.help-code {
    margin: 0;
    padding: 12px;
    overflow: auto;
    white-space: pre-wrap;
    word-break: break-word;
    font-family: 'JetBrains Mono', monospace;
    font-size: 12px;
    line-height: 1.6;
    color: var(--text-primary);
}

.help-params {
    display: grid;
    gap: 12px;
}

.help-param-row {
    display: grid;
    gap: 8px;
    padding: 12px;
    border-radius: 12px;
    border: 1px solid var(--border);
    background: rgba(255, 255, 255, 0.03);
}

.help-param-meta {
    color: var(--text-secondary);
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 0.06em;
}

.help-inline-code {
    display: inline-block;
    padding: 4px 8px;
    border-radius: 8px;
    background: rgba(255, 255, 255, 0.06);
    color: var(--text-primary);
    font-family: 'JetBrains Mono', monospace;
    font-size: 12px;
    overflow-x: auto;
}

.help-empty-state {
    padding: 18px;
    border: 1px dashed var(--border);
    border-radius: 12px;
    text-align: center;
    color: var(--text-secondary);
    background: rgba(255, 255, 255, 0.02);
}

.help-note-card {
    padding: 16px;
    border: 1px solid var(--border);
    border-radius: 12px;
    background: rgba(255, 255, 255, 0.03);
}

.is-hidden {
    display: none !important;
}

@media (max-width: 1080px) {
    .help-layout {
        grid-template-columns: 1fr;
    }

    .help-nav {
        position: relative;
        top: auto;
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

@media (max-width: 768px) {
    .help-hero-top,
    .help-toolbar,
    .help-section-head,
    .help-service-title,
    .help-model-head,
    .help-example-head {
        flex-direction: column;
    }

    .help-stats-grid,
    .help-grid-2 {
        grid-template-columns: 1fr;
    }

    .help-nav {
        grid-template-columns: 1fr;
    }
}