/* ============================================
   DASHBOARD.CSS - Complete Mobile Responsive
   ============================================ */

:root {
    --gradient-primary: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --gradient-success: linear-gradient(135deg, #11998e 0%, #38ef7d 100%);
    --gradient-warning: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    --gradient-info: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.06);
    --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 8px 40px rgba(0, 0, 0, 0.12);
    --radius: 16px;
    --radius-sm: 10px;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* --- Dashboard Layout --- */
.dashboard-wrapper {
    max-width: 1280px;
    margin: 0 auto;
    padding: 30px 24px 60px;
}

body.dark-mode .dashboard-wrapper {
    background: #0f0f1a;
}

/* --- Dashboard Header --- */
.dashboard-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    flex-wrap: wrap;
    gap: 20px;
    margin-bottom: 35px;
}

.dashboard-header-left h1 {
    font-size: 2rem;
    font-weight: 800;
    margin: 0 0 6px;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.dashboard-header-left p {
    color: var(--light-secondary);
    font-size: 0.95rem;
    margin: 0;
}

.dashboard-header-right {
    display: flex;
    align-items: center;
    gap: 14px;
    flex-wrap: wrap;
}

.header-date {
    padding: 8px 18px;
    background: var(--light-container-bg);
    border-radius: 50px;
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--light-secondary);
    box-shadow: var(--shadow-sm);
    border: 1px solid rgba(0, 0, 0, 0.04);
}

.header-date i {
    margin-right: 8px;
    color: #667eea;
}

/* --- Buttons --- */
.btn-dashboard-primary {
    padding: 10px 24px;
    background: var(--gradient-primary);
    color: #fff;
    border: none;
    border-radius: 50px;
    font-weight: 600;
    font-size: 0.9rem;
    cursor: pointer;
    transition: var(--transition);
    display: inline-flex;
    align-items: center;
    gap: 8px;
    text-decoration: none;
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.35);
}

.btn-dashboard-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(102, 126, 234, 0.45);
}

.btn-dashboard-secondary {
    padding: 10px 20px;
    background: var(--light-container-bg);
    color: var(--light-text);
    border: 1px solid #e0e0e0;
    border-radius: 50px;
    font-weight: 500;
    font-size: 0.9rem;
    cursor: pointer;
    transition: var(--transition);
    display: inline-flex;
    align-items: center;
    gap: 8px;
    text-decoration: none;
}

.btn-dashboard-secondary:hover {
    background: #f0f0f0;
    transform: translateY(-2px);
    box-shadow: var(--shadow-sm);
}

/* --- Stats Grid --- */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 16px;
    margin-bottom: 30px;
}

.stat-card {
    background: var(--light-container-bg);
    border-radius: var(--radius);
    padding: 20px 22px;
    box-shadow: var(--shadow-sm);
    border: 1px solid rgba(0, 0, 0, 0.04);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.stat-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
}

.stat-card .stat-icon {
    width: 44px;
    height: 44px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    margin-bottom: 12px;
}

.stat-card .stat-icon.purple {
    background: rgba(102, 126, 234, 0.12);
    color: #667eea;
}
.stat-card .stat-icon.green {
    background: rgba(17, 153, 142, 0.12);
    color: #11998e;
}
.stat-card .stat-icon.orange {
    background: rgba(245, 87, 108, 0.12);
    color: #f5576c;
}
.stat-card .stat-icon.blue {
    background: rgba(79, 172, 254, 0.12);
    color: #4facfe;
}
.stat-card .stat-icon.gold {
    background: rgba(241, 196, 15, 0.15);
    color: #f1c40f;
}

.stat-card .stat-number {
    font-size: 1.8rem;
    font-weight: 800;
    color: var(--light-primary);
    line-height: 1.2;
}

.stat-card .stat-label {
    font-size: 0.82rem;
    color: var(--light-secondary);
    font-weight: 500;
    margin-top: 4px;
}

.stat-card .stat-change {
    position: absolute;
    top: 16px;
    right: 16px;
    font-size: 0.7rem;
    font-weight: 600;
    padding: 3px 10px;
    border-radius: 50px;
    background: rgba(46, 204, 113, 0.12);
    color: #2ecc71;
}

.stat-card .stat-change.down {
    background: rgba(231, 76, 60, 0.12);
    color: #e74c3c;
}

/* --- Dashboard Grid --- */
.dashboard-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
    margin-bottom: 30px;
}

.dashboard-card {
    background: var(--light-container-bg);
    border-radius: var(--radius);
    padding: 24px 28px;
    box-shadow: var(--shadow-sm);
    border: 1px solid rgba(0, 0, 0, 0.04);
    transition: var(--transition);
}

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

.dashboard-card.full-width {
    grid-column: 1 / -1;
}

.card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: 18px;
}

.card-header h3 {
    font-size: 1rem;
    font-weight: 700;
    margin: 0;
    color: var(--light-primary);
}

.card-header h3 i {
    margin-right: 10px;
}

.card-header .card-action {
    font-size: 0.78rem;
    color: #667eea;
    font-weight: 600;
    text-decoration: none;
    cursor: pointer;
    transition: var(--transition);
}

.card-header .card-action:hover {
    color: #764ba2;
}

/* --- Level System --- */
.level-display {
    display: flex;
    align-items: center;
    gap: 20px;
    padding: 15px 20px;
    background: var(--gradient-primary);
    border-radius: var(--radius);
    color: #fff;
    margin-bottom: 20px;
}

.level-display .level-number {
    font-size: 2.5rem;
    font-weight: 900;
    line-height: 1;
}

.level-display .level-info {
    flex: 1;
}

.level-display .level-info h4 {
    margin: 0;
    font-size: 1.1rem;
}

.level-display .level-info p {
    margin: 2px 0 0;
    font-size: 0.8rem;
    opacity: 0.8;
}

.level-progress {
    width: 150px;
    height: 6px;
    background: rgba(255,255,255,0.3);
    border-radius: 4px;
    overflow: hidden;
}

.level-progress .fill {
    height: 100%;
    background: #fff;
    border-radius: 4px;
    transition: width 0.6s ease;
}

/* --- Daily Challenge --- */
.daily-challenge {
    background: var(--light-container-bg);
    border-radius: var(--radius);
    padding: 20px 24px;
    border: 2px solid #667eea;
    box-shadow: 0 0 30px rgba(102, 126, 234, 0.1);
    margin-bottom: 20px;
}

.daily-challenge .challenge-header {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 10px;
}

.daily-challenge .challenge-header i {
    font-size: 1.5rem;
    color: #f1c40f;
}

.daily-challenge .challenge-header h4 {
    margin: 0;
    font-size: 1rem;
    color: var(--light-primary);
}

.daily-challenge .challenge-body {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 10px;
}

.daily-challenge .challenge-body p {
    margin: 0;
    color: var(--light-secondary);
    font-size: 0.9rem;
}

.daily-challenge .challenge-body .challenge-wpm {
    font-size: 1.8rem;
    font-weight: 800;
    color: #667eea;
}

.btn-challenge {
    padding: 8px 20px;
    background: var(--gradient-primary);
    color: #fff;
    border: none;
    border-radius: 50px;
    font-weight: 600;
    font-size: 0.85rem;
    cursor: pointer;
    transition: var(--transition);
    text-decoration: none;
}

.btn-challenge:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.4);
}

/* --- Heatmap --- */
.heatmap-grid {
    display: grid;
    grid-template-columns: repeat(10, 1fr);
    gap: 4px;
    margin: 10px 0;
}

.heatmap-cell {
    aspect-ratio: 1;
    border-radius: 4px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.6rem;
    font-weight: 600;
    transition: var(--transition);
    cursor: pointer;
    position: relative;
}

.heatmap-cell:hover {
    transform: scale(1.2);
    z-index: 2;
}

.heatmap-cell .cell-tooltip {
    position: absolute;
    bottom: calc(100% + 8px);
    left: 50%;
    transform: translateX(-50%);
    background: var(--light-primary);
    color: #fff;
    padding: 4px 10px;
    border-radius: 6px;
    font-size: 0.6rem;
    white-space: nowrap;
    opacity: 0;
    pointer-events: none;
    transition: var(--transition);
}

.heatmap-cell:hover .cell-tooltip {
    opacity: 1;
}

.heatmap-cell.level-0 { background: #e9ecef; color: #333; }
.heatmap-cell.level-1 { background: #d4edda; color: #333; }
.heatmap-cell.level-2 { background: #b7e4c7; color: #333; }
.heatmap-cell.level-3 { background: #8fdbb6; color: #fff; }
.heatmap-cell.level-4 { background: #5ecf9a; color: #fff; }
.heatmap-cell.level-5 { background: #2ecc71; color: #fff; }

.heatmap-legend {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 12px;
    font-size: 0.65rem;
    color: var(--light-secondary);
}

.heatmap-legend .legend-colors {
    display: flex;
    gap: 4px;
}

.heatmap-legend .legend-colors span {
    display: inline-block;
    width: 16px;
    height: 16px;
    border-radius: 3px;
}

.char-frequency h4 {
    font-size: 0.85rem;
    margin: 12px 0 8px;
    color: var(--light-secondary);
}

.char-frequency #charFrequency {
    display: flex;
    flex-wrap: wrap;
    gap: 4px;
}

.char-frequency #charFrequency span {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    background: rgba(102,126,234,0.08);
    padding: 2px 10px;
    border-radius: 50px;
    font-size: 0.75rem;
}

.char-frequency #charFrequency span strong {
    font-size: 0.9rem;
}

/* --- Consistency --- */
.consistency-display {
    display: flex;
    align-items: center;
    gap: 20px;
    padding: 15px;
    background: rgba(102, 126, 234, 0.06);
    border-radius: var(--radius-sm);
}

.consistency-display .consistency-ring {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    font-weight: 800;
    color: #667eea;
    border: 4px solid #667eea;
}

.consistency-display .consistency-info {
    flex: 1;
}

.consistency-display .consistency-info h4 {
    margin: 0;
    font-size: 0.9rem;
    color: var(--light-primary);
}

.consistency-display .consistency-info p {
    margin: 2px 0 6px;
    font-size: 0.8rem;
    color: var(--light-secondary);
}

.consistency-bar-track {
    height: 4px;
    background: #e9ecef;
    border-radius: 4px;
    overflow: hidden;
}

.consistency-bar-track #consistencyBar {
    height: 100%;
    background: var(--gradient-success);
    border-radius: 4px;
    transition: width 0.6s ease;
}

/* --- Error Patterns --- */
.error-section h4 {
    font-size: 0.85rem;
    margin: 15px 0 8px;
    color: var(--light-secondary);
}

.error-pattern {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
}

.error-pattern .error-tag {
    padding: 4px 12px;
    background: rgba(231, 76, 60, 0.1);
    color: #e74c3c;
    border-radius: 50px;
    font-size: 0.75rem;
    font-weight: 600;
}

/* --- Speed Accuracy Chart --- */
.speed-accuracy-section h4 {
    font-size: 0.85rem;
    margin: 15px 0 8px;
    color: var(--light-secondary);
}

#speedAccuracyChart {
    height: 60px;
    width: 100%;
}

#speedAccuracyChart canvas {
    width: 100% !important;
    height: 100% !important;
}

/* --- Prediction --- */
.prediction-display {
    display: flex;
    align-items: center;
    gap: 20px;
    padding: 15px;
    background: rgba(46, 204, 113, 0.06);
    border-radius: var(--radius-sm);
    border: 1px solid rgba(46, 204, 113, 0.15);
}

.prediction-display .prediction-value {
    font-size: 2rem;
    font-weight: 800;
    color: #2ecc71;
}

.prediction-display .prediction-info {
    flex: 1;
}

.prediction-display .prediction-info h4 {
    margin: 0;
    font-size: 0.9rem;
    color: var(--light-primary);
}

.prediction-display .prediction-info p {
    margin: 2px 0 6px;
    font-size: 0.8rem;
    color: var(--light-secondary);
}

.prediction-stats {
    display: flex;
    gap: 20px;
    font-size: 0.75rem;
    color: var(--light-secondary);
}

.prediction-stats strong {
    color: var(--light-primary);
}

/* --- AI Insights --- */
.ai-insights {
    margin-top: 12px;
}

.ai-insight {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    padding: 12px 16px;
    background: rgba(102, 126, 234, 0.06);
    border-radius: var(--radius-sm);
    margin-bottom: 8px;
    border-left: 3px solid #667eea;
}

.ai-insight .ai-icon {
    font-size: 1.2rem;
    color: #667eea;
    margin-top: 2px;
}

.ai-insight .ai-text {
    flex: 1;
}

.ai-insight .ai-text p {
    margin: 0;
    font-size: 0.85rem;
    color: var(--light-text);
}

.ai-insight .ai-text .ai-label {
    font-size: 0.65rem;
    font-weight: 600;
    color: #667eea;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* --- Personal Records --- */
.records-wall {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
    gap: 10px;
    margin-top: 10px;
}

.record-item {
    text-align: center;
    padding: 12px;
    background: rgba(102, 126, 234, 0.06);
    border-radius: var(--radius-sm);
    transition: var(--transition);
}

.record-item:hover {
    background: rgba(102, 126, 234, 0.12);
}

.record-item .record-value {
    font-size: 1.4rem;
    font-weight: 800;
    color: var(--light-primary);
}

.record-item .record-label {
    font-size: 0.7rem;
    color: var(--light-secondary);
    margin-top: 2px;
}

/* --- Typing Simulation --- */
.typing-simulation {
    background: #1a1a2e;
    color: #fff;
    padding: 16px 20px;
    border-radius: var(--radius-sm);
    font-family: 'Courier New', monospace;
    font-size: 1.1rem;
    line-height: 1.8;
    min-height: 60px;
    margin-top: 10px;
    position: relative;
    overflow: hidden;
}

.typing-simulation .cursor-blink {
    display: inline-block;
    width: 2px;
    height: 1.2rem;
    background: #667eea;
    animation: blink 0.8s infinite;
    vertical-align: text-bottom;
    margin-left: 2px;
}

@keyframes blink {
    0%, 50% { opacity: 1; }
    51%, 100% { opacity: 0; }
}

.typing-simulation .char-correct { color: #2ecc71; }
.typing-simulation .char-incorrect { color: #e74c3c; }
.typing-simulation .char-current { background: rgba(102, 126, 234, 0.3); }

/* --- Table --- */
.table-wrap {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
}

.test-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.85rem;
    min-width: 320px;
}

.test-table thead th {
    text-align: left;
    padding: 10px 8px 10px 0;
    font-weight: 600;
    color: var(--light-secondary);
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    border-bottom: 2px solid rgba(0, 0, 0, 0.05);
}

.test-table tbody td {
    padding: 10px 8px 10px 0;
    border-bottom: 1px solid rgba(0, 0, 0, 0.04);
    color: var(--light-text);
}

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

.test-table tbody tr:hover td {
    background: rgba(102, 126, 234, 0.04);
}

.test-table .wpm-badge {
    display: inline-block;
    padding: 2px 12px;
    border-radius: 50px;
    font-weight: 700;
    font-size: 0.8rem;
}

.wpm-badge.excellent {
    background: rgba(46, 204, 113, 0.15);
    color: #2ecc71;
}
.wpm-badge.good {
    background: rgba(52, 152, 219, 0.15);
    color: #3498db;
}
.wpm-badge.average {
    background: rgba(241, 196, 15, 0.15);
    color: #f1c40f;
}
.wpm-badge.poor {
    background: rgba(231, 76, 60, 0.15);
    color: #e74c3c;
}

.accuracy-bar {
    display: inline-block;
    width: 50px;
    height: 5px;
    background: #e9ecef;
    border-radius: 4px;
    overflow: hidden;
    vertical-align: middle;
    margin-right: 8px;
}

.accuracy-bar .fill {
    height: 100%;
    border-radius: 4px;
    background: var(--gradient-success);
    transition: width 0.6s ease;
}

/* --- Badges --- */
.badges-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(70px, 1fr));
    gap: 10px;
}

.badge-item {
    text-align: center;
    padding: 14px 6px;
    background: rgba(102, 126, 234, 0.06);
    border-radius: var(--radius-sm);
    transition: var(--transition);
    cursor: default;
}

.badge-item:hover {
    background: rgba(102, 126, 234, 0.12);
    transform: scale(1.05);
}

.badge-item .badge-icon {
    font-size: 1.8rem;
    display: block;
    margin-bottom: 4px;
}

.badge-item .badge-name {
    font-size: 0.65rem;
    font-weight: 600;
    color: var(--light-secondary);
}

.badge-item.locked {
    opacity: 0.3;
    filter: grayscale(1);
}

/* --- Streak --- */
.streak-display {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 6px 0;
}

.streak-fire {
    font-size: 2.2rem;
    animation: pulse-fire 1.5s ease-in-out infinite;
}

@keyframes pulse-fire {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.1); }
}

.streak-info h4 {
    font-size: 1.6rem;
    font-weight: 800;
    margin: 0;
    color: #f5576c;
}

.streak-info p {
    margin: 0;
    font-size: 0.8rem;
    color: var(--light-secondary);
}

.streak-days {
    display: flex;
    gap: 4px;
    margin-top: 8px;
    flex-wrap: wrap;
}

.streak-day {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.6rem;
    font-weight: 600;
    background: #e9ecef;
    color: var(--light-secondary);
    transition: var(--transition);
}

.streak-day.active {
    background: var(--gradient-success);
    color: #fff;
}

.streak-day.today {
    border: 2px solid #667eea;
    background: rgba(102, 126, 234, 0.1);
    color: #667eea;
}

/* --- Quick Actions --- */
.quick-actions {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
    gap: 10px;
    margin-top: 8px;
}

.quick-action-btn {
    padding: 14px 12px;
    background: rgba(102, 126, 234, 0.06);
    border: 1px solid rgba(102, 126, 234, 0.1);
    border-radius: var(--radius-sm);
    text-align: center;
    text-decoration: none;
    color: var(--light-text);
    transition: var(--transition);
    cursor: pointer;
}

.quick-action-btn:hover {
    background: rgba(102, 126, 234, 0.12);
    transform: translateY(-2px);
    box-shadow: var(--shadow-sm);
}

.quick-action-btn i {
    font-size: 1.2rem;
    display: block;
    margin-bottom: 4px;
    color: #667eea;
}

.quick-action-btn span {
    font-size: 0.75rem;
    font-weight: 600;
}

/* --- Chart --- */
.chart-container {
    position: relative;
    height: 220px;
    margin-top: 10px;
}

.chart-container canvas {
    width: 100% !important;
    height: 100% !important;
}

.chart-tabs {
    display: flex;
    gap: 6px;
    flex-wrap: wrap;
}

.chart-tab {
    padding: 6px 16px;
    border-radius: 50px;
    border: 1px solid #e0e0e0;
    background: transparent;
    font-size: 0.78rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    color: var(--light-secondary);
}

.chart-tab:hover {
    border-color: #667eea;
    color: #667eea;
}

.chart-tab.active {
    background: var(--gradient-primary);
    color: #fff;
    border-color: transparent;
}

/* --- Empty State --- */
.empty-state {
    text-align: center;
    padding: 30px 20px;
}

.empty-state i {
    font-size: 2.5rem;
    color: #d0d0d0;
    margin-bottom: 12px;
}

.empty-state h4 {
    font-size: 1rem;
    color: var(--light-primary);
    margin: 0 0 4px;
}

.empty-state p {
    color: var(--light-secondary);
    font-size: 0.85rem;
    margin: 0;
}

/* --- Dividers --- */
.dashboard-card hr {
    border: none;
    border-top: 1px solid rgba(0,0,0,0.06);
    margin: 16px 0;
}

body.dark-mode .dashboard-card hr {
    border-top-color: rgba(255,255,255,0.06);
}

/* ============================================
   DARK MODE
   ============================================ */
body.dark-mode .dashboard-header-left h1 {
    -webkit-text-fill-color: #fff;
}
body.dark-mode .dashboard-header-left p {
    color: var(--dark-secondary);
}
body.dark-mode .header-date {
    background: var(--dark-container-bg);
    color: var(--dark-secondary);
    border-color: #2a2a3a;
}
body.dark-mode .stat-card,
body.dark-mode .dashboard-card {
    background: var(--dark-container-bg);
    border-color: #2a2a3a;
}
body.dark-mode .stat-card .stat-number {
    color: var(--dark-text);
}
body.dark-mode .stat-card .stat-label {
    color: var(--dark-secondary);
}
body.dark-mode .card-header h3 {
    color: var(--dark-text);
}
body.dark-mode .test-table tbody td {
    color: var(--dark-text);
    border-bottom-color: #2a2a3a;
}
body.dark-mode .test-table thead th {
    color: var(--dark-secondary);
    border-bottom-color: #2a2a3a;
}
body.dark-mode .test-table tbody tr:hover td {
    background: rgba(102, 126, 234, 0.06);
}
body.dark-mode .badge-item {
    background: rgba(102, 126, 234, 0.08);
}
body.dark-mode .badge-item .badge-name {
    color: var(--dark-secondary);
}
body.dark-mode .streak-info p {
    color: var(--dark-secondary);
}
body.dark-mode .streak-day {
    background: #2a2a3a;
    color: var(--dark-secondary);
}
body.dark-mode .quick-action-btn {
    background: rgba(102, 126, 234, 0.08);
    border-color: rgba(102, 126, 234, 0.15);
    color: var(--dark-text);
}
body.dark-mode .quick-action-btn:hover {
    background: rgba(102, 126, 234, 0.15);
}
body.dark-mode .btn-dashboard-secondary {
    background: var(--dark-container-bg);
    color: var(--dark-text);
    border-color: #2a2a3a;
}
body.dark-mode .btn-dashboard-secondary:hover {
    background: #2a2a3a;
}
body.dark-mode .accuracy-bar {
    background: #2a2a3a;
}
body.dark-mode .empty-state h4 {
    color: var(--dark-text);
}
body.dark-mode .empty-state p {
    color: var(--dark-secondary);
}
body.dark-mode .chart-tab {
    border-color: #2a2a3a;
    color: var(--dark-secondary);
}
body.dark-mode .chart-tab:hover {
    border-color: #667eea;
    color: #667eea;
}
body.dark-mode .chart-tab.active {
    background: var(--gradient-primary);
    color: #fff;
}
body.dark-mode .daily-challenge {
    background: var(--dark-container-bg);
}
body.dark-mode .daily-challenge .challenge-header h4 {
    color: var(--dark-text);
}
body.dark-mode .daily-challenge .challenge-body p {
    color: var(--dark-secondary);
}
body.dark-mode .ai-insight .ai-text p {
    color: var(--dark-text);
}
body.dark-mode .record-item .record-value {
    color: var(--dark-text);
}
body.dark-mode .record-item .record-label {
    color: var(--dark-secondary);
}
body.dark-mode .consistency-display .consistency-info h4 {
    color: var(--dark-text);
}
body.dark-mode .consistency-display .consistency-info p {
    color: var(--dark-secondary);
}
body.dark-mode .prediction-display .prediction-info h4 {
    color: var(--dark-text);
}
body.dark-mode .prediction-display .prediction-info p {
    color: var(--dark-secondary);
}
body.dark-mode .prediction-stats strong {
    color: var(--dark-text);
}
body.dark-mode .heatmap-legend {
    color: var(--dark-secondary);
}
body.dark-mode .char-frequency h4 {
    color: var(--dark-secondary);
}
body.dark-mode .error-section h4 {
    color: var(--dark-secondary);
}
body.dark-mode .speed-accuracy-section h4 {
    color: var(--dark-secondary);
}
body.dark-mode .consistency-bar-track {
    background: #2a2a3a;
}
body.dark-mode .heatmap-cell.level-0 { background: #2a2a3a; color: #888; }
body.dark-mode .heatmap-cell.level-1 { background: #1a3a2a; color: #8fdbb6; }
body.dark-mode .heatmap-cell.level-2 { background: #1a4a3a; color: #8fdbb6; }
body.dark-mode .heatmap-cell.level-3 { background: #1a5a4a; color: #8fdbb6; }
body.dark-mode .heatmap-cell.level-4 { background: #1a6a5a; color: #8fdbb6; }
body.dark-mode .heatmap-cell.level-5 { background: #2ecc71; color: #fff; }

/* ============================================
   RESPONSIVE DESIGN
   ============================================ */

/* --- Tablet & Small Desktop --- */
@media (max-width: 1024px) {
    .dashboard-grid {
        grid-template-columns: 1fr;
    }
    .dashboard-card.full-width {
        grid-column: 1;
    }
    .stats-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    .analytics-grid {
        grid-template-columns: 1fr 1fr;
    }
    .ai-records-grid {
        grid-template-columns: 1fr 1fr;
    }
}

/* --- Mobile Landscape & Small Tablets --- */
@media (max-width: 768px) {
    .dashboard-wrapper {
        padding: 16px 12px 40px;
    }

    .dashboard-header {
        flex-direction: column;
        align-items: stretch;
        gap: 14px;
        margin-bottom: 24px;
    }

    .dashboard-header-left h1 {
        font-size: 1.4rem;
    }

    .dashboard-header-left p {
        font-size: 0.85rem;
    }

    .dashboard-header-right {
        flex-direction: row;
        flex-wrap: wrap;
        justify-content: flex-start;
    }

    .header-date {
        font-size: 0.75rem;
        padding: 6px 14px;
    }

    .btn-dashboard-primary,
    .btn-dashboard-secondary {
        font-size: 0.8rem;
        padding: 8px 16px;
    }

    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 10px;
        margin-bottom: 20px;
    }

    .stat-card {
        padding: 14px 16px;
    }

    .stat-card .stat-number {
        font-size: 1.3rem;
    }

    .stat-card .stat-icon {
        width: 36px;
        height: 36px;
        font-size: 1rem;
        margin-bottom: 8px;
    }

    .stat-card .stat-label {
        font-size: 0.72rem;
    }

    .stat-card .stat-change {
        font-size: 0.6rem;
        padding: 2px 8px;
        top: 10px;
        right: 10px;
    }

    .dashboard-card {
        padding: 16px 14px;
    }

    .card-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 8px;
        margin-bottom: 14px;
    }

    .card-header h3 {
        font-size: 0.9rem;
    }

    .chart-container {
        height: 170px;
    }

    .chart-tabs {
        gap: 4px;
    }

    .chart-tab {
        font-size: 0.7rem;
        padding: 4px 12px;
    }

    /* Level Display */
    .level-display {
        flex-wrap: wrap;
        gap: 10px;
        padding: 12px 16px;
    }

    .level-display .level-number {
        font-size: 1.8rem;
    }

    .level-progress {
        width: 100%;
    }

    /* Daily Challenge */
    .daily-challenge {
        padding: 16px 18px;
    }

    .daily-challenge .challenge-body {
        flex-direction: column;
        align-items: flex-start;
        gap: 8px;
    }

    .daily-challenge .challenge-body .challenge-wpm {
        font-size: 1.4rem;
    }

    /* Heatmap */
    .heatmap-grid {
        grid-template-columns: repeat(7, 1fr);
        gap: 3px;
    }

    .heatmap-cell {
        font-size: 0.5rem;
    }

    /* Analytics Grid */
    .analytics-grid {
        grid-template-columns: 1fr;
    }

    .ai-records-grid {
        grid-template-columns: 1fr;
    }

    /* Records */
    .records-wall {
        grid-template-columns: repeat(3, 1fr);
    }

    /* Table */
    .test-table {
        font-size: 0.75rem;
        min-width: 280px;
    }

    .test-table thead th {
        font-size: 0.6rem;
        padding: 8px 6px 8px 0;
    }

    .test-table tbody td {
        padding: 8px 6px 8px 0;
    }

    .test-table .wpm-badge {
        font-size: 0.7rem;
        padding: 2px 8px;
    }

    .accuracy-bar {
        width: 35px;
        height: 4px;
        margin-right: 4px;
    }

    /* Streak */
    .streak-display {
        gap: 12px;
    }

    .streak-fire {
        font-size: 1.8rem;
    }

    .streak-info h4 {
        font-size: 1.3rem;
    }

    .streak-day {
        width: 24px;
        height: 24px;
        font-size: 0.55rem;
    }

    /* Badges */
    .badges-grid {
        grid-template-columns: repeat(auto-fill, minmax(60px, 1fr));
        gap: 8px;
    }

    .badge-item {
        padding: 10px 4px;
    }

    .badge-item .badge-icon {
        font-size: 1.4rem;
    }

    .badge-item .badge-name {
        font-size: 0.55rem;
    }

    /* Quick Actions */
    .quick-actions {
        grid-template-columns: repeat(2, 1fr);
        gap: 8px;
    }

    .quick-action-btn {
        padding: 12px 10px;
    }

    .quick-action-btn i {
        font-size: 1rem;
    }

    .quick-action-btn span {
        font-size: 0.7rem;
    }

    /* Prediction */
    .prediction-display {
        flex-direction: column;
        text-align: center;
        gap: 12px;
    }

    .prediction-stats {
        justify-content: center;
    }

    /* Consistency */
    .consistency-display {
        flex-direction: column;
        text-align: center;
        gap: 12px;
    }

    /* Typing Simulation */
    .typing-simulation {
        font-size: 0.9rem;
        padding: 12px 14px;
        min-height: 50px;
    }
}

/* --- Mobile Portrait --- */
@media (max-width: 480px) {
    .dashboard-wrapper {
        padding: 12px 10px 30px;
    }

    .dashboard-header-left h1 {
        font-size: 1.2rem;
    }

    .dashboard-header-left p {
        font-size: 0.78rem;
    }

    .dashboard-header-right {
        flex-direction: column;
        align-items: stretch;
        gap: 8px;
    }

    .header-date {
        text-align: center;
        font-size: 0.7rem;
        padding: 6px 12px;
    }

    .btn-dashboard-primary,
    .btn-dashboard-secondary {
        justify-content: center;
        text-align: center;
        font-size: 0.75rem;
        padding: 8px 14px;
    }

    .stats-grid {
        grid-template-columns: 1fr 1fr;
        gap: 8px;
    }

    .stat-card {
        padding: 12px 12px;
    }

    .stat-card .stat-number {
        font-size: 1.1rem;
    }

    .stat-card .stat-icon {
        width: 30px;
        height: 30px;
        font-size: 0.85rem;
        margin-bottom: 6px;
    }

    .stat-card .stat-label {
        font-size: 0.65rem;
    }

    .stat-card .stat-change {
        display: none;
    }

    .dashboard-card {
        padding: 12px 10px;
    }

    .card-header h3 {
        font-size: 0.8rem;
    }

    .chart-container {
        height: 140px;
    }

    .chart-tabs {
        gap: 3px;
    }

    .chart-tab {
        font-size: 0.6rem;
        padding: 3px 10px;
    }

    /* Level */
    .level-display .level-number {
        font-size: 1.4rem;
    }

    .level-display .level-info h4 {
        font-size: 0.9rem;
    }

    /* Heatmap */
    .heatmap-grid {
        grid-template-columns: repeat(5, 1fr);
        gap: 2px;
    }

    .heatmap-cell {
        font-size: 0.45rem;
        border-radius: 3px;
    }

    .heatmap-legend {
        font-size: 0.55rem;
    }

    .heatmap-legend .legend-colors span {
        width: 12px;
        height: 12px;
    }

    /* Records */
    .records-wall {
        grid-template-columns: repeat(2, 1fr);
        gap: 6px;
    }

    .record-item .record-value {
        font-size: 1.1rem;
    }

    .record-item .record-label {
        font-size: 0.6rem;
    }

    /* Table */
    .test-table {
        font-size: 0.65rem;
        min-width: 240px;
    }

    .test-table thead th {
        font-size: 0.55rem;
        padding: 6px 4px 6px 0;
    }

    .test-table tbody td {
        padding: 6px 4px 6px 0;
    }

    .test-table .wpm-badge {
        font-size: 0.6rem;
        padding: 1px 6px;
    }

    .accuracy-bar {
        width: 28px;
        height: 3px;
    }

    /* Streak */
    .streak-fire {
        font-size: 1.4rem;
    }

    .streak-info h4 {
        font-size: 1rem;
    }

    .streak-info p {
        font-size: 0.65rem;
    }

    .streak-day {
        width: 20px;
        height: 20px;
        font-size: 0.45rem;
    }

    /* Badges */
    .badges-grid {
        grid-template-columns: repeat(4, 1fr);
        gap: 6px;
    }

    .badge-item {
        padding: 8px 4px;
    }

    .badge-item .badge-icon {
        font-size: 1.2rem;
    }

    .badge-item .badge-name {
        font-size: 0.5rem;
    }

    /* Quick Actions */
    .quick-actions {
        grid-template-columns: 1fr 1fr;
        gap: 6px;
    }

    .quick-action-btn {
        padding: 10px 8px;
    }

    .quick-action-btn i {
        font-size: 0.9rem;
    }

    .quick-action-btn span {
        font-size: 0.6rem;
    }

    /* Prediction */
    .prediction-display .prediction-value {
        font-size: 1.6rem;
    }

    .prediction-stats {
        flex-direction: column;
        gap: 4px;
    }

    /* Typing Simulation */
    .typing-simulation {
        font-size: 0.75rem;
        padding: 10px 12px;
        min-height: 40px;
    }

    /* Empty State */
    .empty-state i {
        font-size: 1.8rem;
    }
    .empty-state h4 {
        font-size: 0.85rem;
    }
    .empty-state p {
        font-size: 0.75rem;
    }

    /* Daily Challenge */
    .daily-challenge .challenge-body .challenge-wpm {
        font-size: 1.2rem;
    }

    .btn-challenge {
        font-size: 0.75rem;
        padding: 6px 16px;
    }
}

/* --- Very Small Screens --- */
@media (max-width: 360px) {
    .stats-grid {
        grid-template-columns: 1fr 1fr;
        gap: 6px;
    }

    .stat-card {
        padding: 10px 10px;
    }

    .stat-card .stat-number {
        font-size: 0.95rem;
    }

    .stat-card .stat-icon {
        width: 26px;
        height: 26px;
        font-size: 0.7rem;
    }

    .stat-card .stat-label {
        font-size: 0.6rem;
    }

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

    .quick-actions {
        grid-template-columns: 1fr 1fr;
    }

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