/**
 * Dashboard Styles
 * Styles specific to the user dashboard page
 */

/* ============================================
   DASHBOARD HEADER
   ============================================ */
.dashboard-header {
    display: flex;
    flex-direction: column;
    gap: var(--space-4);
    margin-bottom: var(--space-8);
    padding-bottom: var(--space-6);
    border-bottom: 1px solid var(--border);
}

@media (min-width: 640px) {
    .dashboard-header {
        flex-direction: row;
        justify-content: space-between;
        align-items: center;
    }
}

.dashboard-welcome {
    flex: 1;
}

.dashboard-title {
    font-size: var(--text-2xl);
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: var(--space-1);
}

@media (min-width: 768px) {
    .dashboard-title {
        font-size: var(--text-3xl);
    }
}

.dashboard-subtitle {
    font-size: var(--text-base);
    color: var(--text-secondary);
}

/* ============================================
   STATS GRID
   ============================================ */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-4);
    margin-bottom: var(--space-8);
}

@media (min-width: 640px) {
    .stats-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (min-width: 992px) {
    .stats-grid {
        grid-template-columns: repeat(6, 1fr);
    }
}

.stat-card {
    background: var(--bg-primary);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: var(--space-5);
    display: flex;
    align-items: center;
    gap: var(--space-4);
    transition: all var(--transition-normal);
}

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

.stat-icon {
    flex-shrink: 0;
    width: 48px;
    height: 48px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
}

.stat-content {
    min-width: 0;
}

.stat-value {
    font-size: var(--text-2xl);
    font-weight: 700;
    color: var(--text-primary);
    line-height: 1.2;
}

.stat-label {
    font-size: var(--text-sm);
    color: var(--text-muted);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

/* ============================================
   CHARTS SECTION
   ============================================ */
.charts-section {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-6);
    margin-bottom: var(--space-8);
}

@media (min-width: 768px) {
    .charts-section {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 992px) {
    .charts-section {
        grid-template-columns: 2fr 1fr 1fr;
    }
}

.chart-card {
    background: var(--bg-primary);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    overflow: hidden;
}

.chart-card-wide {
    grid-column: 1 / -1;
}

@media (min-width: 992px) {
    .chart-card-wide {
        grid-column: 1 / 2;
    }
}

.chart-header {
    padding: var(--space-4) var(--space-5);
    border-bottom: 1px solid var(--border);
}

.chart-title {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    font-size: var(--text-base);
    font-weight: 600;
    color: var(--text-primary);
    margin: 0;
}

.chart-title svg {
    color: var(--accent-primary);
}

.chart-body {
    padding: var(--space-4);
    position: relative;
    min-height: 200px;
}

.chart-empty {
    position: absolute;
    inset: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: var(--space-4);
    background: var(--bg-primary);
}

.chart-empty svg {
    margin-bottom: var(--space-3);
    opacity: 0.5;
}

.chart-empty p {
    font-size: var(--text-sm);
    color: var(--text-muted);
    margin: 0;
}

/* ============================================
   ATTEMPTS SECTION
   ============================================ */
.attempts-section {
    margin-bottom: var(--space-8);
}

.section-header {
    display: flex;
    flex-direction: column;
    gap: var(--space-4);
    margin-bottom: var(--space-6);
}

@media (min-width: 640px) {
    .section-header {
        flex-direction: row;
        justify-content: space-between;
        align-items: center;
    }
}

.section-title {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    font-size: var(--text-xl);
    font-weight: 600;
    color: var(--text-primary);
    margin: 0;
}

.section-title svg {
    color: var(--accent-primary);
}

.section-actions {
    display: flex;
    gap: var(--space-3);
}

.filter-select {
    padding: var(--space-2) var(--space-3);
    font-size: var(--text-sm);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    background: var(--bg-primary);
    color: var(--text-primary);
    cursor: pointer;
    min-width: 140px;
}

.filter-select:focus {
    outline: none;
    border-color: var(--accent-primary);
}

/* ============================================
   ATTEMPTS TABLE
   ============================================ */
.table-container {
    background: var(--bg-primary);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    overflow: hidden;
}

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

.attempts-table th,
.attempts-table td {
    padding: var(--space-4);
    text-align: left;
    border-bottom: 1px solid var(--border);
}

.attempts-table th {
    background: var(--bg-secondary);
    font-size: var(--text-sm);
    font-weight: 600;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

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

.attempts-table tr:hover td {
    background: var(--bg-secondary);
}

.attempt-set-name {
    font-weight: 500;
    color: var(--text-primary);
}

.attempt-set-meta {
    font-size: var(--text-xs);
    color: var(--text-muted);
    margin-top: var(--space-1);
}

.attempt-score {
    font-weight: 600;
    color: var(--text-primary);
}

.attempt-score-pct {
    font-size: var(--text-xs);
    font-weight: 500;
    margin-top: var(--space-1);
}

.score-excellent {
    color: var(--success);
}

.score-good {
    color: var(--info);
}

.score-average {
    color: var(--warning);
}

.score-low {
    color: var(--error);
}

/* Status Badges */
.status-badge {
    display: inline-flex;
    align-items: center;
    padding: var(--space-1) var(--space-3);
    font-size: var(--text-xs);
    font-weight: 500;
    border-radius: var(--radius-full);
}

.status-completed {
    background: var(--success-light);
    color: var(--success-dark);
}

.status-in-progress {
    background: var(--warning-light);
    color: var(--warning);
}

/* Responsive Table */
@media (max-width: 767px) {
    .table-container {
        overflow-x: auto;
    }

    .attempts-table {
        min-width: 600px;
    }
}

/* ============================================
   PAGINATION
   ============================================ */
.pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: var(--space-4);
    margin-top: var(--space-6);
}

.pagination-info {
    font-size: var(--text-sm);
    color: var(--text-muted);
}

/* ============================================
   LOADING SPINNER (ensure it's available)
   ============================================ */
.loading-spinner {
    width: 40px;
    height: 40px;
    border: 3px solid var(--border);
    border-top-color: var(--accent-primary);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

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

/* ============================================
   SUBJECT PROGRESS CARD (for index pages)
   ============================================ */
.subject-progress-card {
    background: linear-gradient(135deg, var(--accent-light), var(--bg-secondary));
    border: 1px solid var(--accent-primary);
    border-radius: var(--radius-lg);
    padding: var(--space-5);
    margin-bottom: var(--space-6);
}

[data-theme="dark"] .subject-progress-card {
    background: linear-gradient(135deg, var(--accent-light), var(--bg-tertiary));
}

.subject-progress-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--space-4);
}

.subject-progress-title {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    font-size: var(--text-base);
    font-weight: 600;
    color: var(--accent-primary);
}

.subject-progress-title svg {
    width: 20px;
    height: 20px;
}

.subject-progress-stats {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-3);
}

@media (min-width: 480px) {
    .subject-progress-stats {
        grid-template-columns: repeat(4, 1fr);
    }
}

.progress-stat-mini {
    text-align: center;
    padding: var(--space-3);
    background: var(--bg-primary);
    border-radius: var(--radius-md);
}

.progress-stat-mini-value {
    font-size: var(--text-xl);
    font-weight: 700;
    color: var(--text-primary);
}

.progress-stat-mini-label {
    font-size: var(--text-xs);
    color: var(--text-muted);
}

/* ============================================
   SET CARD ATTEMPT INFO
   ============================================ */
.set-attempt-info {
    margin-top: var(--space-3);
    padding: var(--space-3);
    background: var(--bg-tertiary);
    border-radius: var(--radius-md);
    font-size: var(--text-sm);
}

.set-attempt-info.has-attempts {
    background: var(--success-light);
    border: 1px solid var(--success);
}

[data-theme="dark"] .set-attempt-info.has-attempts {
    background: rgba(16, 185, 129, 0.15);
}

.set-attempt-info.in-progress {
    background: var(--warning-light);
    border: 1px solid var(--warning);
}

[data-theme="dark"] .set-attempt-info.in-progress {
    background: rgba(245, 158, 11, 0.15);
}

.set-attempt-info-row {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    color: var(--text-secondary);
}

.set-attempt-info-row svg {
    flex-shrink: 0;
    width: 16px;
    height: 16px;
}

.set-attempt-info.has-attempts .set-attempt-info-row {
    color: var(--success-dark);
}

.set-attempt-info.in-progress .set-attempt-info-row {
    color: var(--warning);
}

.set-attempt-info .attempt-count {
    font-weight: 600;
}

.set-attempt-info .best-score {
    font-weight: 600;
}

/* ============================================
   USER HEADER STATS
   ============================================ */
.user-stats-mini {
    display: none;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-1) var(--space-3);
    background: var(--bg-tertiary);
    border-radius: var(--radius-full);
    font-size: var(--text-xs);
    color: var(--text-secondary);
}

@media (min-width: 768px) {
    .user-stats-mini {
        display: flex;
    }
}

.user-stats-mini svg {
    width: 14px;
    height: 14px;
    color: var(--accent-primary);
}

.user-stats-mini .stat-value {
    font-weight: 600;
    color: var(--text-primary);
    font-size: var(--text-xs);
}

/* ============================================
   DARK MODE ADJUSTMENTS
   ============================================ */
[data-theme="dark"] .stat-card {
    background: var(--bg-secondary);
}

[data-theme="dark"] .chart-card {
    background: var(--bg-secondary);
}

[data-theme="dark"] .table-container {
    background: var(--bg-secondary);
}

[data-theme="dark"] .attempts-table th {
    background: var(--bg-tertiary);
}

[data-theme="dark"] .attempts-table tr:hover td {
    background: var(--bg-tertiary);
}

[data-theme="dark"] .filter-select {
    background: var(--bg-secondary);
    border-color: var(--border);
}

[data-theme="dark"] .progress-stat-mini {
    background: var(--bg-secondary);
}