/* ===== CSS Variables ===== */
:root {
    --primary-color: #667eea;
    --secondary-color: #764ba2;
    --success-color: #10b981;
    --warning-color: #f59e0b;
    --danger-color: #ef4444;
    --info-color: #3b82f6;
    
    --bg-primary: #0f172a;
    --bg-secondary: #1e293b;
    --bg-tertiary: #334155;
    --bg-card: #1e293b;
    
    --text-primary: #f1f5f9;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;
    
    --border-color: #334155;
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    
    --sidebar-width: 260px;
    --header-height: 70px;
    
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

/* ===== Sidebar ===== */
.sidebar {
    position: fixed;
    left: 0;
    top: 0;
    width: var(--sidebar-width);
    height: 100vh;
    background: var(--bg-secondary);
    border-right: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    z-index: 1000;
    transition: var(--transition);
}

.sidebar-header {
    padding: 2rem 1.5rem;
    border-bottom: 1px solid var(--border-color);
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 0.5rem;
}

.logo i {
    font-size: 2rem;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.logo h1 {
    font-size: 1.5rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.tagline {
    color: var(--text-secondary);
    font-size: 0.875rem;
    margin-left: 2.75rem;
}

.sidebar-nav {
    flex: 1;
    padding: 1.5rem 0;
    overflow-y: auto;
}

.nav-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 0.875rem 1.5rem;
    color: var(--text-secondary);
    text-decoration: none;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    border-left: 3px solid transparent;
    position: relative;
    overflow: hidden;
}

.nav-item::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    height: 100%;
    width: 0;
    background: linear-gradient(90deg, var(--primary-color), transparent);
    opacity: 0.1;
    transition: width 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.nav-item:hover {
    background: var(--bg-tertiary);
    color: var(--text-primary);
    transform: translateX(4px);
}

.nav-item:hover::before {
    width: 100%;
}

.nav-item.active {
    background: var(--bg-tertiary);
    color: var(--primary-color);
    border-left-color: var(--primary-color);
    font-weight: 600;
}

.nav-item.active::before {
    width: 100%;
}

.nav-item i {
    font-size: 1.25rem;
    width: 1.5rem;
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.nav-item:hover i,
.nav-item.active i {
    transform: scale(1.1);
}

.sidebar-footer {
    padding: 1.5rem;
    border-top: 1px solid var(--border-color);
}

.status-indicator {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 0.5rem;
    font-size: 0.875rem;
    color: var(--text-secondary);
}

.status-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--success-color);
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

.version {
    font-size: 0.75rem;
    color: var(--text-muted);
}

/* ===== Main Content ===== */
.main-content {
    margin-left: var(--sidebar-width);
    min-height: 100vh;
    transition: var(--transition);
}

/* ===== Header ===== */
.header {
    height: var(--header-height);
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 2rem;
    position: sticky;
    top: 0;
    z-index: 100;
}

.header-left {
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

.menu-toggle {
    display: none;
    background: none;
    border: none;
    color: var(--text-primary);
    font-size: 1.5rem;
    cursor: pointer;
}

.page-title {
    font-size: 1.5rem;
    font-weight: 600;
}

.header-right {
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

.search-box {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    background: var(--bg-tertiary);
    padding: 0.5rem 1rem;
    border-radius: 0.5rem;
    border: 1px solid var(--border-color);
}

.search-box i {
    color: var(--text-muted);
}

.search-box input {
    background: none;
    border: none;
    color: var(--text-primary);
    outline: none;
    width: 200px;
}

.refresh-btn {
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    padding: 0.5rem 1rem;
    border-radius: 0.5rem;
    cursor: pointer;
    transition: var(--transition);
}

.refresh-btn:hover {
    background: var(--bg-primary);
    transform: rotate(180deg);
}

.user-menu {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    cursor: pointer;
}

.user-menu img {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    border: 2px solid var(--primary-color);
}

/* ===== Content Sections ===== */
.content-section {
    display: none;
    padding: 2rem;
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.4s cubic-bezier(0.4, 0, 0.2, 1),
                transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.content-section.active {
    display: block;
    animation: fadeInSlide 0.5s cubic-bezier(0.4, 0, 0.2, 1) forwards;
}

.content-section.fade-out {
    animation: fadeOutSlide 0.3s cubic-bezier(0.4, 0, 0.2, 1) forwards;
}

@keyframes fadeInSlide {
    from {
        opacity: 0;
        transform: translateY(20px) scale(0.98);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

@keyframes fadeOutSlide {
    from {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
    to {
        opacity: 0;
        transform: translateY(-20px) scale(0.98);
    }
}

.section-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 2rem;
}

.section-header h3 {
    font-size: 1.75rem;
    font-weight: 600;
}

/* ===== Stats Grid ===== */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.stat-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 1rem;
    padding: 1.5rem;
    display: flex;
    gap: 1.5rem;
    transition: var(--transition);
}

.stat-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.stat-icon {
    width: 60px;
    height: 60px;
    border-radius: 1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    flex-shrink: 0;
}

.stat-icon.blue { background: rgba(102, 126, 234, 0.1); color: var(--primary-color); }
.stat-icon.green { background: rgba(16, 185, 129, 0.1); color: var(--success-color); }
.stat-icon.purple { background: rgba(118, 75, 162, 0.1); color: var(--secondary-color); }
.stat-icon.orange { background: rgba(245, 158, 11, 0.1); color: var(--warning-color); }

.stat-content h3 {
    font-size: 0.875rem;
    color: var(--text-secondary);
    font-weight: 500;
    margin-bottom: 0.5rem;
}

.stat-value {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.stat-change {
    font-size: 0.875rem;
    display: flex;
    align-items: center;
    gap: 0.25rem;
}

.stat-change.positive { color: var(--success-color); }
.stat-change.negative { color: var(--danger-color); }

/* ===== Charts ===== */
.charts-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.chart-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 1rem;
    padding: 1.5rem;
    min-height: 400px;
    max-height: 400px;
}

.chart-card canvas {
    max-height: 320px !important;
    height: 320px !important;
}

.chart-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 1.5rem;
}

.chart-header h3 {
    font-size: 1.125rem;
    font-weight: 600;
}

.chart-filter {
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    padding: 0.5rem 1rem;
    border-radius: 0.5rem;
    cursor: pointer;
}

.chart-action {
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    padding: 0.5rem 1rem;
    border-radius: 0.5rem;
    cursor: pointer;
    transition: var(--transition);
}

.chart-action:hover {
    background: var(--primary-color);
}

/* ===== Activity Section ===== */
.activity-section {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 1rem;
    padding: 1.5rem;
}

.view-all {
    color: var(--primary-color);
    text-decoration: none;
    font-size: 0.875rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    transition: var(--transition);
}

.view-all:hover {
    gap: 0.75rem;
}

.activity-list {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.activity-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem;
    background: var(--bg-tertiary);
    border-radius: 0.5rem;
    transition: var(--transition);
}

.activity-item:hover {
    background: var(--bg-primary);
}

.activity-icon {
    width: 40px;
    height: 40px;
    border-radius: 0.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.activity-content {
    flex: 1;
}

.activity-title {
    font-weight: 500;
    margin-bottom: 0.25rem;
}

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

/* ===== Buttons ===== */
.btn-primary {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    border: none;

.btn-sm {
    padding: 0.5rem 1rem;
    font-size: 0.875rem;
    margin-top: 0.5rem;
}
    padding: 0.75rem 1.5rem;
    border-radius: 0.5rem;
    font-weight: 500;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    transition: var(--transition);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-secondary {
    background: var(--bg-tertiary);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
    padding: 0.75rem 1.5rem;
    border-radius: 0.5rem;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
}

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

/* ===== Analysis Grid ===== */
.analysis-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.analysis-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 1rem;
    padding: 1.5rem;
    min-height: 350px;
}

.analysis-card canvas {
    max-height: 250px !important;
    height: 250px !important;
}

.analysis-card h4 {
    margin-bottom: 1.5rem;
    font-size: 1.125rem;
}

.quality-score {
    display: flex;
    justify-content: center;
    margin-bottom: 2rem;
}

.score-circle {
    position: relative;
    width: 150px;
    height: 150px;
}

.score-circle svg {
    transform: rotate(-90deg);
}

.score-circle circle {
    fill: none;
    stroke: var(--bg-tertiary);
    stroke-width: 8;
}

.score-circle circle.progress {
    stroke: var(--primary-color);
    stroke-linecap: round;
    stroke-dasharray: 283;
    stroke-dashoffset: 70;
    transition: stroke-dashoffset 1s ease;
}

.score-value {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: 2.5rem;
    font-weight: 700;
}

.quality-metrics {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.metric span {
    display: block;
    margin-bottom: 0.5rem;
    font-size: 0.875rem;
    color: var(--text-secondary);
}

.progress-bar {
    height: 8px;
    background: var(--bg-tertiary);
    border-radius: 1rem;
    overflow: hidden;
}

.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
    border-radius: 1rem;
    transition: width 1s ease;
}

/* ===== Issues Section ===== */
.issues-section {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 1rem;
    padding: 1.5rem;
}

.issues-list {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.issue-item {
    display: flex;
    gap: 1rem;
    padding: 1rem;
    background: var(--bg-tertiary);
    border-radius: 0.5rem;
    border-left: 3px solid var(--danger-color);
}

.issue-severity {
    width: 40px;
    height: 40px;
    border-radius: 0.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    font-weight: 700;
}

.issue-severity.high { background: rgba(239, 68, 68, 0.1); color: var(--danger-color); }
.issue-severity.medium { background: rgba(245, 158, 11, 0.1); color: var(--warning-color); }
.issue-severity.low { background: rgba(59, 130, 246, 0.1); color: var(--info-color); }

/* ===== Usage Cards ===== */
.usage-overview {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.usage-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 1rem;
    padding: 1.5rem;
    min-height: 350px;
}

.usage-card canvas {
    max-height: 250px !important;
    height: 250px !important;
}

.usage-card h4 {
    margin-bottom: 1.5rem;
    font-size: 1.125rem;
}

.balance-display {
    text-align: center;
    margin-bottom: 1.5rem;
}

.balance-value {
    font-size: 3rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.balance-label {
    display: block;
    color: var(--text-secondary);
    font-size: 0.875rem;
}

.usage-bar {
    height: 12px;
    background: var(--bg-tertiary);
    border-radius: 1rem;
    overflow: hidden;
    margin-bottom: 0.5rem;
}

.usage-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--success-color), var(--warning-color), var(--danger-color));
    border-radius: 1rem;
    transition: width 1s ease;
}

.usage-text {
    text-align: center;
    font-size: 0.875rem;
    color: var(--text-secondary);
}

/* ===== Data Table ===== */
.data-table {
    width: 100%;
    border-collapse: collapse;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 1rem;
    overflow: hidden;
}

.data-table thead {
    background: var(--bg-tertiary);
}

.data-table th {
    padding: 1rem;
    text-align: left;
    font-weight: 600;
    color: var(--text-secondary);
    font-size: 0.875rem;
    text-transform: uppercase;
}

.data-table td {
    padding: 1rem;
    border-top: 1px solid var(--border-color);
}

.data-table tr:hover {
    background: var(--bg-tertiary);
}

/* ===== AI Stats Grid ===== */
.ai-stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.ai-stat-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 1rem;
    padding: 1.5rem;
    text-align: center;
    transition: var(--transition);
}

.ai-stat-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.ai-stat-card i {
    font-size: 2rem;
    margin-bottom: 1rem;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.ai-stat-card h4 {
    font-size: 0.875rem;
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
}

.ai-stat-value {
    font-size: 2rem;
    font-weight: 700;
}

/* ===== Workflows Grid ===== */
.workflows-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.workflow-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 1rem;
    padding: 1.5rem;
    text-align: center;
    transition: var(--transition);
}

.workflow-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.workflow-icon {
    width: 60px;
    height: 60px;
    margin: 0 auto 1rem;
    border-radius: 1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
}

.workflow-card h4 {
    margin-bottom: 0.5rem;
}

.workflow-card p {
    color: var(--text-secondary);
    font-size: 0.875rem;
    margin-bottom: 1rem;
}

.workflow-stats {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-bottom: 1rem;
    font-size: 0.875rem;
    color: var(--text-muted);
}

/* ===== Reports Grid ===== */
.reports-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.report-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 1rem;
    padding: 1.5rem;
    transition: var(--transition);
}

.report-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.report-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1rem;
}

.report-header i {
    font-size: 1.5rem;
    color: var(--primary-color);
}

.report-meta {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    margin-bottom: 1rem;
    font-size: 0.875rem;
    color: var(--text-muted);
}

/* ===== Export Section ===== */
.export-section {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 1rem;
    padding: 1.5rem;
}

.export-options {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.export-btn {
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    padding: 0.75rem 1.5rem;
    border-radius: 0.5rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    transition: var(--transition);
}

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

/* ===== Loading Overlay ===== */
.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(15, 23, 42, 0.9);
    display: none;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    gap: 1rem;
    z-index: 9999;
}

.loading-overlay.active {
    display: flex;
}

.spinner {
    width: 50px;
    height: 50px;
    border: 4px solid var(--bg-tertiary);
    border-top-color: var(--primary-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* ===== Toast Notifications ===== */
.toast-container {
    position: fixed;
    top: 1rem;
    right: 1rem;
    z-index: 10000;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.toast {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 0.5rem;
    padding: 1rem 1.5rem;
    min-width: 300px;
    box-shadow: var(--shadow-lg);
    animation: slideIn 0.3s ease-out;
}

@keyframes slideIn {
    from { transform: translateX(400px); opacity: 0; }
    to { transform: translateX(0); opacity: 1; }
}

.toast.success { border-left: 4px solid var(--success-color); }
.toast.error { border-left: 4px solid var(--danger-color); }
.toast.warning { border-left: 4px solid var(--warning-color); }
.toast.info { border-left: 4px solid var(--info-color); }

/* ===== Mobile Overlay ===== */
.mobile-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(4px);
    z-index: 999;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, visibility 0.3s ease;
}

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

/* ===== Page Title Transition ===== */
.page-title {
    transition: opacity 0.3s ease;
}

/* ===== Menu Toggle Animation ===== */
.menu-toggle {
    position: relative;
    transition: all 0.3s ease;
}

.menu-toggle.active {
    transform: rotate(90deg);
}

.menu-toggle i {
    transition: transform 0.3s ease;
}

/* ===== Responsive Design ===== */
@media (max-width: 1024px) {
    .sidebar {
        transform: translateX(-100%);
        box-shadow: var(--shadow-lg);
    }
    
    .sidebar.active {
        transform: translateX(0);
        box-shadow: 2px 0 20px rgba(0, 0, 0, 0.3);
    }
    
    .main-content {
        margin-left: 0;
    }
    
    .menu-toggle {
        display: flex;
        align-items: center;
        justify-content: center;
    }
    
    .stats-grid {
        grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    }
    
    .charts-row {
        grid-template-columns: 1fr;
    }
    
    /* Improve nav items on mobile */
    .nav-item {
        padding: 1rem 1.5rem;
        font-size: 1.05rem;
    }
    
    .nav-item i {
        font-size: 1.4rem;
    }
}

@media (max-width: 768px) {
    .header {
        padding: 0 1rem;
    }
    
    .search-box {
        display: none;
    }
    
    .content-section {
        padding: 1rem;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .user-menu span {
        display: none;
    }
}

/* ===== Scrollbar Styling ===== */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: var(--bg-primary);
}

::-webkit-scrollbar-thumb {
    background: var(--bg-tertiary);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--border-color);
}

/* Made with Bob */

/* ===== AI Charts Row Fix ===== */
.ai-charts-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.ai-charts-row .chart-card {
    min-height: 350px;
    max-height: 350px;
}

.ai-charts-row .chart-card canvas {
    max-height: 250px !important;
    height: 250px !important;
}


/* ===== About Me Section ===== */
.about-container {
    max-width: 1200px;
    margin: 0 auto;
}

.about-header {
    display: flex;
    align-items: center;
    gap: 2rem;
    padding: 2rem;
    background: var(--card-bg);
    border-radius: 12px;
    margin-bottom: 2rem;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.about-avatar {
    flex-shrink: 0;
    width: 150px;
    height: 150px;
}

.about-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
    border-radius: 50%;
    border: 4px solid var(--primary-color);
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.3);
    display: block;
    background-color: var(--bg-secondary);
}

.about-intro {
    flex: 1;
}

.about-intro h2 {
    font-size: 2rem;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.about-title {
    font-size: 1.2rem;
    color: var(--text-secondary);
    margin-bottom: 1rem;
}

.about-social {
    display: flex;
    gap: 1rem;
}

.social-link {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-secondary);
    border-radius: 8px;
    color: var(--text-secondary);
    transition: all 0.3s ease;
    text-decoration: none;
}

.social-link:hover {
    background: var(--primary-color);
    color: white;
    transform: translateY(-2px);
}

.about-content {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.about-section {
    background: var(--card-bg);
    padding: 2rem;
    border-radius: 12px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.about-section h3 {
    font-size: 1.5rem;
    margin-bottom: 1.5rem;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.about-section h3 i {
    color: var(--primary-color);
}

.about-section p {
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 1rem;
}

.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
}

.skill-category h4 {
    font-size: 1.1rem;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.skill-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.skill-tag {
    padding: 0.5rem 1rem;
    background: var(--bg-secondary);
    border-radius: 20px;
    font-size: 0.9rem;
    color: var(--text-primary);
    transition: all 0.3s ease;
}

.skill-tag:hover {
    background: var(--primary-color);
    color: white;
    transform: translateY(-2px);
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
}

.project-card {
    padding: 1.5rem;
    background: var(--bg-secondary);
    border-radius: 12px;
    transition: all 0.3s ease;
}

.project-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.15);
}

.project-icon {
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--primary-color);
    border-radius: 12px;
    margin-bottom: 1rem;
}

.project-icon i {
    font-size: 1.8rem;
    color: white;
}

.project-card h4 {
    font-size: 1.2rem;
    margin-bottom: 0.75rem;
    color: var(--text-primary);
}

.project-card p {
    color: var(--text-secondary);
    margin-bottom: 1rem;
    line-height: 1.6;
}

.project-tech {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.project-tech span {
    padding: 0.25rem 0.75rem;
    background: var(--card-bg);
    border-radius: 12px;
    font-size: 0.85rem;
    color: var(--primary-color);
}

.timeline-vertical {
    position: relative;
    padding-left: 2rem;
}

.timeline-vertical::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 2px;
    background: var(--primary-color);
}

.timeline-item-vertical {
    position: relative;
    padding-bottom: 2rem;
}

.timeline-marker-vertical {
    position: absolute;
    left: -2.5rem;
    top: 0;
    width: 12px;
    height: 12px;
    background: var(--primary-color);
    border-radius: 50%;
    border: 3px solid var(--card-bg);
}

.timeline-content-vertical h4 {
    font-size: 1.2rem;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.timeline-company {
    font-weight: 600;
    color: var(--primary-color);
    margin-bottom: 0.25rem;
}

.timeline-date {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-bottom: 0.75rem;
}

.timeline-content-vertical p:last-child {
    color: var(--text-secondary);
    line-height: 1.6;
}

.achievements-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
}

.achievement-card {
    text-align: center;
    padding: 1.5rem;
    background: var(--bg-secondary);
    border-radius: 12px;
    transition: all 0.3s ease;
}

.achievement-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.15);
}

.achievement-card i {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.achievement-card h4 {
    font-size: 1.1rem;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.achievement-card p {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.contact-info {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
}

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    padding: 1rem;
    background: var(--bg-secondary);
    border-radius: 12px;
}

.contact-item i {
    font-size: 1.5rem;
    color: var(--primary-color);
    margin-top: 0.25rem;
}

.contact-item strong {
    display: block;
    color: var(--text-primary);
    margin-bottom: 0.25rem;
}

.contact-item p {
    color: var(--text-secondary);
    margin: 0;
}

/* Responsive adjustments for About section */
@media (max-width: 768px) {
    .about-header {
        flex-direction: column;
        text-align: center;
    }
    
    .about-social {
        justify-content: center;
    }
    
    .skills-grid,
    .projects-grid,
    .achievements-grid,
    .contact-info {
        grid-template-columns: 1fr;
    }
    
    .timeline-vertical {
        padding-left: 1.5rem;
    }
    
    .timeline-marker-vertical {
        left: -2rem;
    }
}


/* ===== AI Chat Assistant ===== */
.chat-toggle {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border: none;
    color: white;
    font-size: 1.5rem;
    cursor: pointer;
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.4);
    transition: all 0.3s ease;
    z-index: 10000;
    display: flex;
    align-items: center;
    justify-content: center;
}

.chat-toggle:hover {
    transform: scale(1.1);
    box-shadow: 0 6px 20px rgba(102, 126, 234, 0.6);
}

.chat-badge {
    position: absolute;
    top: -5px;
    right: -5px;
    background: var(--success-color);
    color: white;
    font-size: 0.7rem;
    padding: 0.2rem 0.4rem;
    border-radius: 10px;
    font-weight: 600;
}

.chat-widget {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    width: 400px;
    height: 600px;
    background: #1e293b;
    border-radius: 16px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.5);
    display: flex;
    flex-direction: column;
    transform: translateY(calc(100% + 2rem));
    opacity: 0;
    visibility: hidden;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    z-index: 100;
    overflow: hidden;
    border: 1px solid #334155;
}

.chat-widget.open {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
}

.chat-header {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    padding: 1.25rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    border-radius: 16px 16px 0 0;
}

.chat-header-content {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    color: white;
}

.chat-header-content i {
    font-size: 1.5rem;
}

.chat-header-content h4 {
    margin: 0;
    font-size: 1.1rem;
}

.chat-status {
    font-size: 0.8rem;
    opacity: 0.9;
}

.chat-minimize {
    background: rgba(255, 255, 255, 0.2);
    border: none;
    color: white;
    width: 32px;
    height: 32px;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.chat-minimize:hover {
    background: rgba(255, 255, 255, 0.3);
}

.chat-body {
    flex: 1;
    overflow-y: auto;
    padding: 1rem;
    display: flex;
    flex-direction: column;
    background: #1e293b;
}

.chat-welcome {
    text-align: center;
    padding: 2rem 1rem;
    color: var(--text-secondary);
}

.chat-welcome i {
    font-size: 3rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.chat-welcome h3 {
    color: var(--text-primary);
    margin-bottom: 1rem;
}

.chat-welcome ul {
    text-align: left;
    margin: 1rem 0;
    padding-left: 1.5rem;
}

.chat-welcome li {
    margin: 0.5rem 0;
}

.chat-messages {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.chat-message {
    display: flex;
    gap: 0.75rem;
    animation: slideInMessage 0.3s ease;
}

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

.message-avatar {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.chat-message.user .message-avatar {
    background: var(--primary-color);
    color: white;
}

.chat-message.assistant .message-avatar {
    background: var(--bg-tertiary);
    color: var(--primary-color);
}

.message-content {
    flex: 1;
    padding: 0.75rem 1rem;
    border-radius: 12px;
    line-height: 1.6;
    white-space: pre-wrap;
}

.chat-message.user .message-content {
    background: var(--primary-color);
    color: white;
    border-bottom-right-radius: 4px;
}

.chat-message.assistant .message-content {
    background: var(--bg-tertiary);
    color: var(--text-primary);
    border-bottom-left-radius: 4px;
}

.typing-dots {
    display: flex;
    gap: 0.25rem;
    padding: 0.5rem 0;
}

.typing-dots span {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--text-secondary);
    animation: typingDot 1.4s infinite;
}

.typing-dots span:nth-child(2) {
    animation-delay: 0.2s;
}

.typing-dots span:nth-child(3) {
    animation-delay: 0.4s;
}

@keyframes typingDot {
    0%, 60%, 100% {
        opacity: 0.3;
        transform: translateY(0);
    }
    30% {
        opacity: 1;
        transform: translateY(-8px);
    }
}

.chat-input-container {
    display: flex;
    gap: 0.5rem;
    padding: 1rem;
    border-top: 1px solid var(--border-color);
}

.chat-input {
    flex: 1;
    padding: 0.75rem 1rem;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: 24px;
    color: var(--text-primary);
    font-size: 0.95rem;
    outline: none;
    transition: all 0.3s ease;
}

.chat-input:focus {
    border-color: var(--primary-color);
    background: var(--bg-secondary);
}

.chat-send {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: var(--primary-color);
    border: none;
    color: white;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
}

.chat-send:hover {
    background: var(--secondary-color);
    transform: scale(1.05);
}

.chat-suggestions {
    padding: 0 1rem 1rem;
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.suggestion-chip {
    padding: 0.5rem 1rem;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    color: var(--text-primary);
    font-size: 0.85rem;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.suggestion-chip:hover {
    background: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
    transform: translateY(-2px);
}

.chat-action-btn {
    padding: 0.75rem 1.5rem;
    background: var(--primary-color);
    border: none;
    border-radius: 8px;
    color: white;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-top: 0.5rem;
}

.chat-action-btn:hover {
    background: var(--secondary-color);
    transform: translateX(4px);
}

/* Mobile responsive */
@media (max-width: 768px) {
    .chat-widget {
        width: calc(100vw - 2rem);
        height: calc(100vh - 4rem);
        bottom: 1rem;
        right: 1rem;
    }
    
    .chat-toggle {
        bottom: 1rem;
        right: 1rem;
    }
}