/**
 * HeuriSight Card System
 * Based on: mockups/apple-redesign/05-assessment-detail.html, 02-learning-dashboard.html
 * 
 * Usage:
 *   <article class="hs-card">
 *     <header class="hs-card__header">...</header>
 *     <div class="hs-card__body">...</div>
 *     <footer class="hs-card__footer">...</footer>
 *   </article>
 */

/* =============================================================================
   BASE CARD
   ============================================================================= */

.hs-card {
    background: var(--bg-primary, #FFFFFF);
    border: 1px solid var(--border-light, rgba(0, 0, 0, 0.06));
    border-radius: var(--radius-lg, 16px);
    box-shadow: var(--shadow-sm, 0 1px 2px rgba(0,0,0,0.04));
    overflow: hidden;
    transition: box-shadow var(--duration-fast, 150ms) var(--ease-default);
}

.hs-card:hover {
    box-shadow: var(--shadow-md, 0 2px 8px rgba(0,0,0,0.08));
}

/* =============================================================================
   CARD SECTIONS
   ============================================================================= */

.hs-card__header {
    padding: var(--space-5, 20px);
    border-bottom: 1px solid var(--border-light, rgba(0, 0, 0, 0.06));
}

.hs-card__body {
    padding: var(--space-5, 20px);
}

.hs-card__footer {
    padding: var(--space-4, 16px) var(--space-5, 20px);
    border-top: 1px solid var(--border-light, rgba(0, 0, 0, 0.06));
    background: var(--bg-secondary, #F5F5F7);
}

/* =============================================================================
   CARD VARIANTS
   ============================================================================= */

/* Compact padding */
.hs-card--compact .hs-card__header,
.hs-card--compact .hs-card__body,
.hs-card--compact .hs-card__footer {
    padding: var(--space-4, 16px);
}

/* No border */
.hs-card--flat {
    border: none;
    box-shadow: none;
}

/* Elevated shadow */
.hs-card--elevated {
    box-shadow: var(--shadow-md, 0 2px 8px rgba(0,0,0,0.08));
}

.hs-card--elevated:hover {
    box-shadow: var(--shadow-lg, 0 8px 32px rgba(0,0,0,0.12));
}

/* Interactive/clickable card */
.hs-card--interactive {
    cursor: pointer;
}

.hs-card--interactive:hover {
    border-color: var(--accent, #0071E3);
}

/* =============================================================================
   ASSESSMENT CARD (from mockups)
   ============================================================================= */

.hs-assessment-card {
    background: var(--bg-primary, #FFFFFF);
    border: 1px solid var(--border-light, rgba(0, 0, 0, 0.06));
    border-radius: var(--radius-lg, 16px);
    margin-bottom: var(--space-4, 16px);
    overflow: hidden;
    transition: all var(--duration-normal, 250ms) var(--ease-default);
}

.hs-assessment-card.expanded {
    box-shadow: var(--shadow-md, 0 2px 8px rgba(0,0,0,0.08));
}

.hs-assessment-card__header {
    display: flex;
    flex-wrap: wrap;
    align-items: flex-start;
    justify-content: space-between;
    gap: var(--space-4, 16px);
    padding: var(--space-5, 20px);
    cursor: pointer;
    transition: background var(--duration-fast, 150ms);
}

.hs-assessment-card__header:hover {
    background: var(--bg-secondary, #F5F5F7);
}

.hs-assessment-card__title-group {
    flex: 1;
    min-width: 200px;
}

.hs-assessment-card__title {
    font-size: var(--text-lg, 17px);
    font-weight: 600;
    color: var(--text-primary, #1D1D1F);
    letter-spacing: -0.01em;
    margin-bottom: var(--space-1, 4px);
}

.hs-assessment-card__meta {
    font-size: var(--text-sm, 13px);
    color: var(--text-secondary, #6E6E73);
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-2, 8px);
}

.hs-assessment-card__meta span::after {
    content: '·';
    margin-left: var(--space-2, 8px);
    color: var(--text-tertiary, #86868B);
}

.hs-assessment-card__meta span:last-child::after {
    content: none;
}

.hs-assessment-card__stats {
    display: flex;
    gap: var(--space-6, 24px);
}

.hs-assessment-card__actions {
    display: flex;
    gap: var(--space-2, 8px);
}

.hs-assessment-card__detail {
    padding: var(--space-5, 20px);
    border-top: 1px solid var(--border-light, rgba(0, 0, 0, 0.06));
    display: none;
}

.hs-assessment-card.expanded .hs-assessment-card__detail {
    display: block;
}

/* =============================================================================
   STAT CARD (KPI cards)
   ============================================================================= */

.hs-stat-card {
    background: var(--bg-primary, #FFFFFF);
    border: 1px solid var(--border-light, rgba(0, 0, 0, 0.06));
    border-radius: var(--radius-md, 12px);
    padding: var(--space-5, 20px);
    text-align: left;
}

.hs-stat-card__value {
    font-size: var(--text-3xl, 28px);
    font-weight: 700;
    color: var(--text-primary, #1D1D1F);
    letter-spacing: -0.02em;
    line-height: 1.1;
    margin-bottom: var(--space-1, 4px);
}

.hs-stat-card__label {
    font-size: var(--text-sm, 13px);
    color: var(--text-secondary, #6E6E73);
}

.hs-stat-card__trend {
    font-size: var(--text-xs, 11px);
    margin-top: var(--space-2, 8px);
}

/* Stat card color variants */
.hs-stat-card--success .hs-stat-card__value {
    color: var(--success, #34C759);
}

.hs-stat-card--warning .hs-stat-card__value {
    color: var(--warning, #FF9500);
}

.hs-stat-card--danger .hs-stat-card__value {
    color: var(--destructive, #FF3B30);
}

.hs-stat-card--accent .hs-stat-card__value {
    color: var(--accent, #0071E3);
}

.hs-stat-card--purple .hs-stat-card__value {
    color: var(--purple, #AF52DE);
}

/* Compact stat card */
.hs-stat-card--compact {
    padding: var(--space-4, 16px);
}

.hs-stat-card--compact .hs-stat-card__value {
    font-size: var(--text-2xl, 24px);
}

/* =============================================================================
   STUDENT CARD
   ============================================================================= */

.hs-student-card {
    display: flex;
    align-items: center;
    gap: var(--space-4, 16px);
    padding: var(--space-4, 16px);
    background: var(--bg-primary, #FFFFFF);
    border: 1px solid var(--border-light, rgba(0, 0, 0, 0.06));
    border-radius: var(--radius-md, 12px);
    cursor: pointer;
    transition: all var(--duration-fast, 150ms);
}

.hs-student-card:hover {
    border-color: var(--accent, #0071E3);
    box-shadow: var(--shadow-sm, 0 1px 2px rgba(0,0,0,0.04));
}

.hs-student-card__avatar {
    width: 44px;
    height: 44px;
    border-radius: var(--radius-full, 9999px);
    background: var(--bg-secondary, #F5F5F7);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    color: var(--text-secondary, #6E6E73);
    flex-shrink: 0;
}

.hs-student-card__info {
    flex: 1;
    min-width: 0;
}

.hs-student-card__name {
    font-size: var(--text-base, 15px);
    font-weight: 500;
    color: var(--text-primary, #1D1D1F);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.hs-student-card__meta {
    font-size: var(--text-sm, 13px);
    color: var(--text-secondary, #6E6E73);
}

.hs-student-card__actions {
    display: flex;
    gap: var(--space-2, 8px);
}

/* =============================================================================
   CARD GRID LAYOUTS
   ============================================================================= */

.hs-card-grid {
    display: grid;
    gap: var(--space-4, 16px);
}

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

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

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

/* Responsive grid */
@media (max-width: 1199px) {
    .hs-card-grid--4 {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .hs-card-grid--3 {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 767px) {
    .hs-card-grid--2,
    .hs-card-grid--3,
    .hs-card-grid--4 {
        grid-template-columns: 1fr;
    }
}

/* =============================================================================
   DARK THEME
   ============================================================================= */

[data-theme="dark"] .hs-card,
[data-theme="dark"] .hs-assessment-card,
[data-theme="dark"] .hs-stat-card,
[data-theme="dark"] .hs-student-card {
    background: var(--bg-primary, #1D1D1F);
    border-color: var(--border-light, rgba(255, 255, 255, 0.08));
}

[data-theme="dark"] .hs-card__footer,
[data-theme="dark"] .hs-assessment-card__header:hover {
    background: var(--bg-secondary, #2C2C2E);
}

/* =============================================================================
   LEGACY CLASS COMPATIBILITY (from mockups)
   ============================================================================= */

.assessment-card {
    background: var(--bg-primary, #FFFFFF);
    border: 1px solid var(--border-light, rgba(0, 0, 0, 0.06));
    border-radius: var(--radius-lg, 16px);
    box-shadow: var(--shadow-sm);
    margin-bottom: var(--space-4, 16px);
    overflow: hidden;
    transition: all var(--duration-normal, 250ms) var(--ease-default);
}

.assessment-card--expanded {
    box-shadow: var(--shadow-md, 0 2px 8px rgba(0,0,0,0.08));
}

.assessment-card__header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: var(--space-4, 16px);
    padding: var(--space-5, 20px);
    cursor: pointer;
    transition: background var(--duration-fast, 150ms);
}

.assessment-card__header:hover {
    background: var(--bg-secondary, #F5F5F7);
}

.assessment-card__title-group {
    flex: 1;
    min-width: 200px;
}

.assessment-card__title {
    font-size: var(--text-lg, 17px);
    font-weight: 600;
    color: var(--text-primary, #1D1D1F);
    letter-spacing: -0.01em;
    margin: 0 0 var(--space-1, 4px) 0;
}

.assessment-card__meta {
    font-size: var(--text-sm, 13px);
    color: var(--text-secondary, #6E6E73);
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-2, 8px);
}

.assessment-card__meta span::after {
    content: '·';
    margin-left: var(--space-2, 8px);
    color: var(--text-tertiary, #86868B);
}

.assessment-card__meta span:last-child::after {
    content: none;
}

.assessment-card__header-right {
    display: flex;
    align-items: center;
    gap: var(--space-3, 12px);
    flex-shrink: 0;
}

.assessment-card__toggle {
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: transparent;
    border: none;
    border-radius: var(--radius-sm, 8px);
    cursor: pointer;
    transition: all var(--duration-fast, 150ms);
}

.assessment-card__toggle:hover {
    background: var(--bg-tertiary, #E8E8ED);
}

.assessment-card__toggle svg {
    width: 16px;
    height: 16px;
    color: var(--text-tertiary, #86868B);
    transition: transform var(--duration-fast, 150ms);
}

.assessment-card--expanded .assessment-card__toggle svg {
    transform: rotate(180deg);
}

/* Progress bar */
.assessment-card__progress {
    height: 3px;
    background: var(--bg-tertiary, #E8E8ED);
}

.assessment-card__progress-fill {
    height: 100%;
    transition: width var(--duration-normal, 250ms) var(--ease-default);
}

/* Summary Stats */
.assessment-card__summary-stats {
    display: flex;
    gap: var(--space-6, 24px);
    padding: var(--space-4, 16px) var(--space-5, 20px);
    background: var(--bg-secondary, #F5F5F7);
    border-bottom: 1px solid var(--border-light, rgba(0, 0, 0, 0.06));
}

.summary-stat {
    text-align: center;
}

.summary-stat__value {
    font-size: var(--text-xl, 20px);
    font-weight: 600;
    color: var(--text-primary, #1D1D1F);
}

.summary-stat__label {
    font-size: var(--text-xs, 11px);
    color: var(--text-tertiary, #86868B);
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

/* Detail section (expanded content) */
.assessment-card__detail {
    padding: var(--space-5, 20px);
    border-top: 1px solid var(--border-light, rgba(0, 0, 0, 0.06));
    display: none;
}

.assessment-card--expanded .assessment-card__detail {
    display: block;
}

/* Action buttons */
.assessment-actions {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-2, 8px);
}

/* Tabs container */
.assessment-card__tabs-container {
    margin-top: var(--space-4, 16px);
}

/* Loading placeholder */
.loading-placeholder {
    text-align: center;
    padding: var(--space-6, 24px);
    color: var(--text-tertiary, #86868B);
}

.loading-placeholder .spinner {
    width: 24px;
    height: 24px;
    border: 2px solid var(--border-default);
    border-top-color: var(--accent);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 0 auto var(--space-2, 8px);
}

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

/* Dark theme */
[data-theme="dark"] .assessment-card {
    background: var(--bg-primary, #1D1D1F);
    border-color: var(--border-light, rgba(255, 255, 255, 0.08));
}

[data-theme="dark"] .assessment-card__header:hover {
    background: var(--bg-secondary, #2C2C2E);
}

[data-theme="dark"] .assessment-card__summary-stats {
    background: var(--bg-secondary, #2C2C2E);
}

.assessment-header {
    padding: var(--space-5, 20px);
    cursor: pointer;
    transition: background var(--duration-fast, 150ms);
}

.assessment-header:hover {
    background: var(--accent-subtle, rgba(0, 113, 227, 0.08));
}

.assessment-header-top {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    margin-bottom: var(--space-3, 12px);
}

.assessment-title-group {
    flex: 1;
}

.assessment-title {
    font-size: var(--text-lg, 17px);
    font-weight: 600;
    color: var(--text-primary, #1D1D1F);
    margin-bottom: var(--space-1, 4px);
}

.assessment-meta {
    font-size: var(--text-sm, 13px);
    color: var(--text-secondary, #6E6E73);
}

.assessment-meta span {
    margin-right: var(--space-4, 16px);
}

.status-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-1, 4px);
    padding: var(--space-1, 4px) var(--space-3, 12px);
    border-radius: var(--radius-full, 9999px);
    font-size: var(--text-xs, 11px);
    font-weight: 600;
}

.status-badge--active {
    background: var(--success-subtle, rgba(52, 199, 89, 0.1));
    color: var(--success, #34C759);
}

.status-badge--draft {
    background: var(--bg-tertiary, #E8E8ED);
    color: var(--text-secondary, #6E6E73);
}

.status-dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
}

.status-dot--success { background: var(--success, #34C759); }
.status-dot--warning { background: var(--warning, #FF9500); }
.status-dot--destructive { background: var(--destructive, #FF3B30); }
.status-dot--danger { background: var(--destructive, #FF3B30); }
.status-dot--neutral { background: var(--gray-400, #86868B); }

/* =============================================================================
   COMPLETION ACCORDION (Assessment Card Expandable Sections)
   ============================================================================= */

.completion-accordion {
    border: 1px solid var(--border-light, rgba(0, 0, 0, 0.06));
    border-radius: var(--radius-md, 12px);
    margin-bottom: var(--space-3, 12px);
    overflow: hidden;
    background: var(--bg-primary, #FFFFFF);
}

.completion-accordion__header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    padding: var(--space-4, 16px) var(--space-5, 20px);
    background: var(--bg-tertiary, #FAFAFA);
    border: none;
    cursor: pointer;
    transition: background var(--duration-fast, 150ms);
}

.completion-accordion__header:hover {
    background: var(--bg-secondary, #F5F5F7);
}

.completion-accordion__title-group {
    display: flex;
    align-items: center;
    gap: var(--space-3, 12px);
}

.completion-accordion__title {
    font-size: var(--text-base, 15px);
    font-weight: 600;
    color: var(--text-primary, #1D1D1F);
    margin: 0;
}

.completion-accordion__subtitle {
    font-size: var(--text-sm, 13px);
    color: var(--text-secondary, #6E6E73);
}

.completion-accordion__toggle {
    width: 20px;
    height: 20px;
    color: var(--text-tertiary, #86868B);
    transition: transform var(--duration-fast, 150ms);
    flex-shrink: 0;
}

.completion-accordion__toggle--expanded {
    transform: rotate(180deg);
}

.completion-accordion__content {
    padding: var(--space-5, 20px);
    border-top: 1px solid var(--border-light, rgba(0, 0, 0, 0.06));
}

.completion-accordion__content.hidden {
    display: none;
}

/* =============================================================================
   COMPLETION KPI CARDS
   ============================================================================= */

.completion-kpi-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-4, 16px);
    margin-bottom: var(--space-4, 16px);
}

.completion-kpi-grid--modal {
    margin-bottom: var(--space-6, 24px);
}

.completion-kpi {
    padding: var(--space-5, 20px);
    background: var(--bg-tertiary, #FAFAFA);
    border-radius: var(--radius-lg, 16px);
    text-align: center;
}

.completion-kpi__value {
    font-size: var(--text-4xl, 34px);
    font-weight: 700;
    line-height: 1.1;
}

.completion-kpi__label {
    font-size: var(--text-sm, 13px);
    color: var(--text-secondary, #6E6E73);
    margin-top: var(--space-2, 8px);
}

.completion-kpi--success .completion-kpi__value { color: var(--success, #34C759); }
.completion-kpi--warning .completion-kpi__value { color: var(--warning, #FF9500); }
.completion-kpi--danger .completion-kpi__value { color: var(--destructive, #FF3B30); }

/* View all students link */
.completion-view-link {
    display: inline-flex;
    align-items: center;
    gap: var(--space-1, 4px);
    font-size: var(--text-sm, 13px);
    font-weight: 500;
    color: var(--accent, #0071E3);
    text-decoration: none;
    transition: color var(--duration-fast, 150ms);
}

.completion-view-link:hover {
    color: var(--accent-hover, #0077ED);
    text-decoration: underline;
}

/* =============================================================================
   STUDENT COMPLETION MODAL
   ============================================================================= */

.student-completion-modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-6, 24px);
    z-index: 1000;
}

.student-completion-modal {
    width: 100%;
    max-width: 900px;
    max-height: 90vh;
    background: var(--bg-primary, #FFFFFF);
    border-radius: var(--radius-xl, 20px);
    box-shadow: var(--shadow-lg, 0 8px 32px rgba(0,0,0,0.12));
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.student-completion-modal__header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-5, 20px) var(--space-6, 24px);
    border-bottom: 1px solid var(--border-light, rgba(0, 0, 0, 0.06));
}

.student-completion-modal__header-left {
    display: flex;
    flex-direction: column;
    gap: var(--space-1, 4px);
}

.student-completion-modal__title {
    font-size: var(--text-xl, 20px);
    font-weight: 600;
    letter-spacing: -0.02em;
    margin: 0;
}

.student-completion-modal__subtitle {
    font-size: var(--text-sm, 13px);
    color: var(--text-secondary, #6E6E73);
    margin: 0;
}

.student-completion-modal__close {
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-secondary, #F5F5F7);
    border: none;
    border-radius: var(--radius-full, 9999px);
    cursor: pointer;
    transition: background var(--duration-fast, 150ms);
}

.student-completion-modal__close:hover {
    background: var(--gray-200, #E8E8ED);
}

.student-completion-modal__close svg {
    width: 16px;
    height: 16px;
    color: var(--text-secondary, #6E6E73);
}

.student-completion-modal__body {
    flex: 1;
    overflow-y: auto;
    padding: var(--space-6, 24px);
}

/* Filter Bar */
.completion-filter-bar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--space-4, 16px);
    gap: var(--space-4, 16px);
}

.completion-filter-tabs {
    display: flex;
    gap: var(--space-1, 4px);
    background: var(--bg-secondary, #F5F5F7);
    padding: var(--space-1, 4px);
    border-radius: var(--radius-sm, 8px);
}

.completion-filter-tab {
    padding: var(--space-2, 8px) var(--space-4, 16px);
    border-radius: var(--radius-sm, 8px);
    font-size: var(--text-sm, 13px);
    font-weight: 500;
    color: var(--text-secondary, #6E6E73);
    background: transparent;
    border: none;
    cursor: pointer;
    transition: all var(--duration-fast, 150ms);
    white-space: nowrap;
}

.completion-filter-tab:hover {
    color: var(--text-primary, #1D1D1F);
}

.completion-filter-tab.active {
    background: var(--bg-primary, #FFFFFF);
    color: var(--text-primary, #1D1D1F);
    box-shadow: var(--shadow-sm, 0 1px 2px rgba(0,0,0,0.04));
}

.completion-search {
    padding: var(--space-2, 8px) var(--space-4, 16px);
    border: 1px solid var(--border-default, rgba(0, 0, 0, 0.1));
    border-radius: var(--radius-sm, 8px);
    font-size: var(--text-sm, 13px);
    background: var(--bg-primary, #FFFFFF);
    color: var(--text-primary, #1D1D1F);
    width: 200px;
}

.completion-search::placeholder {
    color: var(--text-tertiary, #86868B);
}

/* Completion Table */
.completion-table-wrapper {
    border: 1px solid var(--border-light, rgba(0, 0, 0, 0.06));
    border-radius: var(--radius-md, 12px);
    overflow: hidden;
}

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

.completion-table th {
    padding: var(--space-3, 12px) var(--space-4, 16px);
    font-size: var(--text-xs, 11px);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.02em;
    color: var(--text-tertiary, #86868B);
    text-align: left;
    background: var(--bg-tertiary, #FAFAFA);
    border-bottom: 1px solid var(--border-light, rgba(0, 0, 0, 0.06));
}

.completion-table td {
    padding: var(--space-3, 12px) var(--space-4, 16px);
    font-size: var(--text-sm, 13px);
    border-bottom: 1px solid var(--border-light, rgba(0, 0, 0, 0.06));
    vertical-align: middle;
}

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

.completion-table tbody tr {
    cursor: pointer;
    transition: background var(--duration-fast, 150ms);
}

.completion-table tbody tr:hover {
    background: var(--accent-subtle, rgba(0, 113, 227, 0.08));
}

.completion-empty {
    text-align: center;
    color: var(--text-tertiary, #86868B);
    padding: var(--space-8, 32px) !important;
}

/* Status indicator */
.status-indicator {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2, 8px);
}

.status-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
}

.student-name {
    font-weight: 500;
    color: var(--text-primary, #1D1D1F);
}

.student-email {
    font-size: var(--text-xs, 11px);
    color: var(--text-tertiary, #86868B);
}

/* Score badges */
.score-badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 32px;
    padding: var(--space-1, 4px) var(--space-2, 8px);
    border-radius: var(--radius-sm, 8px);
    font-size: var(--text-sm, 13px);
    font-weight: 600;
}

.score-badge--high {
    background: var(--success-subtle, rgba(52, 199, 89, 0.12));
    color: var(--success, #34C759);
}

.score-badge--medium {
    background: var(--warning-subtle, rgba(255, 149, 0, 0.12));
    color: var(--warning, #FF9500);
}

.score-badge--low {
    background: var(--destructive-subtle, rgba(255, 59, 48, 0.12));
    color: var(--destructive, #FF3B30);
}

.score-badge--pending {
    background: var(--gray-200, #E8E8ED);
    color: var(--text-secondary, #6E6E73);
}

.action-link {
    font-size: var(--text-sm, 13px);
    color: var(--accent, #0071E3);
    text-decoration: none;
}

.action-link:hover {
    text-decoration: underline;
}

.completion-pending-text {
    color: var(--text-tertiary, #86868B);
}

/* Modal Footer */
.student-completion-modal__footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-4, 16px) var(--space-6, 24px);
    border-top: 1px solid var(--border-light, rgba(0, 0, 0, 0.06));
    background: var(--bg-tertiary, #FAFAFA);
}

.completion-pagination-info {
    font-size: var(--text-sm, 13px);
    color: var(--text-secondary, #6E6E73);
}

.completion-footer-actions {
    display: flex;
    gap: var(--space-2, 8px);
}

/* =============================================================================
   DIMENSION ANALYTICS TABLE (Mockup Aligned)
   ============================================================================= */

.dimension-table-wrapper {
    border: 1px solid var(--border-light, rgba(0, 0, 0, 0.06));
    border-radius: var(--radius-md, 12px);
    overflow: hidden;
}

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

.dimension-table th {
    padding: var(--space-3, 12px) var(--space-4, 16px);
    font-size: var(--text-xs, 11px);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.02em;
    color: var(--text-tertiary, #86868B);
    text-align: left;
    background: var(--bg-tertiary, #FAFAFA);
    border-bottom: 1px solid var(--border-light, rgba(0, 0, 0, 0.06));
}

.dimension-table td {
    padding: var(--space-3, 12px) var(--space-4, 16px);
    font-size: var(--text-sm, 13px);
    border-bottom: 1px solid var(--border-light, rgba(0, 0, 0, 0.06));
    vertical-align: middle;
}

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

.dimension-table tbody tr {
    cursor: pointer;
    transition: background var(--duration-fast, 150ms);
}

.dimension-table tbody tr:hover {
    background: var(--accent-subtle, rgba(0, 113, 227, 0.08));
}

.dimension-name {
    font-weight: 500;
    color: var(--text-primary, #1D1D1F);
}

.dimension-score .score-badge {
    background: var(--accent-subtle, rgba(0, 113, 227, 0.12));
    color: var(--accent, #0071E3);
}

.dimension-mastery {
    font-weight: 600;
}

.dimension-distribution {
    min-width: 150px;
}

.distribution-bar {
    display: flex;
    gap: 2px;
    height: 20px;
    border-radius: var(--radius-sm, 8px);
    overflow: hidden;
}

.view-link {
    font-size: var(--text-sm, 13px);
    color: var(--accent, #0071E3);
    text-decoration: none;
}

.view-link:hover {
    text-decoration: underline;
}

/* Dark Theme Additions */
[data-theme="dark"] .completion-accordion {
    background: var(--bg-primary, #1D1D1F);
    border-color: var(--border-light, rgba(255, 255, 255, 0.08));
}

[data-theme="dark"] .completion-accordion__header {
    background: var(--bg-secondary, #2C2C2E);
}

[data-theme="dark"] .completion-accordion__header:hover {
    background: var(--bg-tertiary, #3A3A3C);
}

[data-theme="dark"] .completion-kpi {
    background: var(--bg-secondary, #2C2C2E);
}

[data-theme="dark"] .student-completion-modal {
    background: var(--bg-primary, #1D1D1F);
}

[data-theme="dark"] .student-completion-modal__close {
    background: var(--bg-tertiary, #3A3A3C);
}

[data-theme="dark"] .completion-filter-tabs {
    background: var(--bg-tertiary, #3A3A3C);
}

[data-theme="dark"] .completion-filter-tab.active {
    background: var(--bg-secondary, #2C2C2E);
}

[data-theme="dark"] .completion-search {
    background: var(--bg-secondary, #2C2C2E);
    border-color: var(--border-default, rgba(255, 255, 255, 0.12));
}

[data-theme="dark"] .completion-table-wrapper,
[data-theme="dark"] .dimension-table-wrapper {
    border-color: var(--border-light, rgba(255, 255, 255, 0.08));
}

[data-theme="dark"] .completion-table th,
[data-theme="dark"] .dimension-table th {
    background: var(--bg-secondary, #2C2C2E);
}

[data-theme="dark"] .student-completion-modal__footer {
    background: var(--bg-secondary, #2C2C2E);
}

/* =============================================================================
   COHORT CARDS (Apple Design System)
   ============================================================================= */

.cohort-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
    gap: var(--space-4, 16px);
}

.cohort-card {
    background: var(--bg-primary, #FFFFFF);
    border-radius: var(--radius-lg, 16px);
    box-shadow: var(--shadow-sm, 0 1px 2px rgba(0,0,0,0.04));
    overflow: hidden;
    transition: box-shadow var(--duration-fast, 150ms) ease;
}

.cohort-card:hover {
    box-shadow: var(--shadow-md, 0 4px 16px rgba(0,0,0,0.08));
}

.cohort-card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-4, 16px) var(--space-5, 20px);
    border-bottom: 1px solid var(--border-light, rgba(0, 0, 0, 0.06));
}

.cohort-title-group {
    display: flex;
    align-items: center;
    gap: var(--space-3, 12px);
    flex-wrap: wrap;
}

.cohort-title {
    font-size: var(--text-base, 15px);
    font-weight: 600;
    color: var(--text-primary, #1D1D1F);
}

.cohort-status {
    display: inline-flex;
    align-items: center;
    gap: var(--space-1, 4px);
    padding: var(--space-1, 4px) var(--space-2, 8px);
    border-radius: var(--radius-full, 9999px);
    font-size: var(--text-xs, 11px);
    font-weight: 600;
}

.cohort-status--active {
    background: var(--success-subtle, rgba(52, 199, 89, 0.1));
    color: var(--success, #34C759);
}

.cohort-status--default {
    background: var(--warning-subtle, rgba(255, 149, 0, 0.1));
    color: var(--warning, #FF9500);
}

.cohort-status--default .cohort-icon--filled {
    width: 12px;
    height: 12px;
}

.cohort-card-body {
    padding: var(--space-4, 16px) var(--space-5, 20px);
}

.cohort-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-3, 12px);
    margin-bottom: var(--space-4, 16px);
}

.cohort-stat {
    text-align: center;
}

.cohort-stat-value {
    font-size: var(--text-xl, 20px);
    font-weight: 600;
    color: var(--text-primary, #1D1D1F);
}

.cohort-stat-label {
    font-size: var(--text-xs, 11px);
    color: var(--text-secondary, #6E6E73);
    text-transform: uppercase;
    letter-spacing: 0.02em;
}

.cohort-meta {
    display: flex;
    align-items: center;
    gap: var(--space-4, 16px);
    font-size: var(--text-sm, 13px);
    color: var(--text-secondary, #6E6E73);
}

.cohort-meta-item {
    display: flex;
    align-items: center;
    gap: var(--space-1, 4px);
}

.cohort-meta-item svg {
    width: 14px;
    height: 14px;
}

.cohort-card-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-3, 12px) var(--space-5, 20px);
    background: var(--bg-tertiary, #FAFAFA);
    border-top: 1px solid var(--border-light, rgba(0, 0, 0, 0.06));
}

.cohort-actions {
    display: flex;
    gap: var(--space-1, 4px);
}

/* SVG Icon styling for cohort cards */
.cohort-icon {
    width: 16px;
    height: 16px;
    flex-shrink: 0;
}

.cohort-icon--filled {
    fill: currentColor;
}

/* Dark theme for cohort cards */
[data-theme="dark"] .cohort-card {
    background: var(--bg-secondary, #2C2C2E);
}

[data-theme="dark"] .cohort-card-header {
    border-color: var(--border-light, rgba(255, 255, 255, 0.08));
}

[data-theme="dark"] .cohort-card-footer {
    background: var(--bg-tertiary, #3A3A3C);
    border-color: var(--border-light, rgba(255, 255, 255, 0.08));
}

[data-theme="dark"] .cohort-status--default {
    background: rgba(255, 149, 0, 0.15);
}

/* =============================================================================
   UPLOAD COMPONENTS (HAG Upload, Document Upload)
   ============================================================================= */

.upload-section {
    padding: var(--space-6, 24px);
}

.upload-header {
    display: flex;
    align-items: flex-start;
    gap: var(--space-4, 16px);
    margin-bottom: var(--space-6, 24px);
}

.upload-header__icon {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--accent, #0071E3);
    flex-shrink: 0;
}

.upload-header__icon .hag-icon {
    width: 32px;
    height: 32px;
}

.upload-title {
    font-size: var(--text-lg, 17px);
    font-weight: 600;
    color: var(--text-primary, #1D1D1F);
    margin: 0 0 var(--space-1, 4px) 0;
}

.upload-dropzone {
    border: 2px dashed var(--border-default, rgba(0, 0, 0, 0.1));
    border-radius: var(--radius-lg, 16px);
    padding: var(--space-8, 32px) var(--space-6, 24px);
    text-align: center;
    transition: all var(--duration-fast, 150ms) ease;
    background: var(--bg-tertiary, #FAFAFA);
}

.upload-dropzone:hover,
.upload-dropzone.dragover {
    border-color: var(--accent, #0071E3);
    background: var(--accent-subtle, rgba(0, 113, 227, 0.04));
}

.upload-dropzone__icon {
    width: 48px;
    height: 48px;
    margin: 0 auto var(--space-4, 16px);
    color: var(--accent, #0071E3);
}

.upload-dropzone__icon .hag-icon {
    width: 48px;
    height: 48px;
}

.upload-dropzone__text {
    margin-bottom: var(--space-5, 20px);
}

.upload-dropzone__title {
    font-size: var(--text-base, 15px);
    color: var(--text-primary, #1D1D1F);
    margin: 0 0 var(--space-2, 8px) 0;
}

.upload-dropzone__or {
    color: var(--text-tertiary, #86868B);
    margin: 0 var(--space-2, 8px);
}

.upload-dropzone__filetypes {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: var(--space-4, 16px);
    margin-bottom: var(--space-4, 16px);
}

.file-type {
    display: flex;
    align-items: center;
    gap: var(--space-2, 8px);
    font-size: var(--text-sm, 13px);
    color: var(--text-secondary, #6E6E73);
}

.file-type .hag-icon {
    width: 16px;
    height: 16px;
    color: var(--text-tertiary, #86868B);
}

.upload-dropzone__hint {
    margin: 0;
}

/* HAG Icon default styling */
.hag-icon {
    width: 16px;
    height: 16px;
    flex-shrink: 0;
}

/* Batch Upload Section */
.batch-upload-section {
    margin-top: var(--space-4, 16px);
}

.batch-upload-header {
    display: flex;
    align-items: center;
    gap: var(--space-3, 12px);
    margin-bottom: var(--space-4, 16px);
}

.batch-upload-header .hag-icon {
    width: 20px;
    height: 20px;
    color: var(--accent, #0071E3);
}

.batch-upload-header h4 {
    font-size: var(--text-base, 15px);
    font-weight: 600;
    color: var(--text-primary, #1D1D1F);
    margin: 0;
}

.file-queue {
    display: flex;
    flex-direction: column;
    gap: var(--space-2, 8px);
    margin-bottom: var(--space-4, 16px);
}

.queue-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-3, 12px) var(--space-4, 16px);
    background: var(--bg-primary, #FFFFFF);
    border-radius: var(--radius-sm, 8px);
    border: 1px solid var(--border-light, rgba(0, 0, 0, 0.06));
}

.queue-item__info {
    display: flex;
    align-items: center;
    gap: var(--space-3, 12px);
    flex: 1;
    min-width: 0;
}

.queue-item__name {
    font-size: var(--text-sm, 13px);
    font-weight: 500;
    color: var(--text-primary, #1D1D1F);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.queue-item__size {
    font-size: var(--text-xs, 11px);
    color: var(--text-tertiary, #86868B);
}

.queue-item__remove {
    flex-shrink: 0;
}

.batch-controls {
    display: flex;
    gap: var(--space-3, 12px);
}

.batch-controls .hag-icon {
    width: 14px;
    height: 14px;
    margin-right: var(--space-2, 8px);
}

/* Upload Progress */
.upload-progress {
    margin-top: var(--space-4, 16px);
}

.progress-info {
    display: flex;
    justify-content: space-between;
    margin-bottom: var(--space-2, 8px);
}

.progress-track {
    height: 4px;
    background: var(--bg-tertiary, #E8E8ED);
    border-radius: var(--radius-full, 9999px);
    overflow: hidden;
}

.progress-fill {
    height: 100%;
    background: var(--accent, #0071E3);
    border-radius: var(--radius-full, 9999px);
    transition: width var(--duration-normal, 250ms) ease;
}

/* Dark theme for upload components */
[data-theme="dark"] .upload-dropzone {
    background: var(--bg-tertiary, #3A3A3C);
    border-color: var(--border-default, rgba(255, 255, 255, 0.12));
}

[data-theme="dark"] .upload-dropzone:hover,
[data-theme="dark"] .upload-dropzone.dragover {
    background: rgba(0, 113, 227, 0.08);
}

[data-theme="dark"] .queue-item {
    background: var(--bg-tertiary, #3A3A3C);
    border-color: var(--border-light, rgba(255, 255, 255, 0.08));
}

[data-theme="dark"] .progress-track {
    background: var(--bg-tertiary, #3A3A3C);
}

/* =============================================================================
   MODELS GRID & SECTION (My Models Tab)
   ============================================================================= */

.models-section {
    margin-bottom: var(--space-6, 24px);
}

.models-grid {
    display: grid;
    grid-template-columns: repeat(1, minmax(0, 1fr));
    gap: var(--space-4, 16px);
}

@media (min-width: 768px) {
    .models-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

@media (min-width: 1200px) {
    .models-grid {
        grid-template-columns: repeat(3, minmax(0, 1fr));
    }
}

.models-grid .empty-state {
    grid-column: 1 / -1;
    text-align: center;
    padding: var(--space-8, 32px) var(--space-6, 24px);
    color: var(--text-tertiary, #86868B);
    font-size: var(--text-sm, 13px);
}

/* =============================================================================
   MODEL CARDS (My Models Tab)
   ============================================================================= */

.model-card {
    display: flex;
    flex-direction: column;
    background: var(--bg-primary, #FFFFFF);
    border: 1px solid var(--border-light, rgba(0, 0, 0, 0.06));
    border-radius: var(--radius-lg, 16px);
    padding: var(--space-5, 20px);
    box-shadow: var(--shadow-sm);
    transition: box-shadow var(--duration-fast, 150ms), transform var(--duration-fast, 150ms);
    height: 100%;
}

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

.model-card__header {
    display: flex;
    align-items: flex-start;
    gap: var(--space-3, 12px);
    margin-bottom: var(--space-3, 12px);
}

.model-card__icon {
    width: 32px;
    height: 32px;
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--accent-subtle, rgba(0, 113, 227, 0.08));
    border-radius: var(--radius-md, 12px);
}

.model-card__icon .model-icon {
    width: 16px;
    height: 16px;
    color: var(--accent, #0071E3);
}

.model-card__title-group {
    flex: 1;
    min-width: 0;
}

.model-card__title {
    font-size: var(--text-base, 15px);
    font-weight: 600;
    color: var(--text-primary, #1D1D1F);
    margin: 0 0 var(--space-1, 4px) 0;
    line-height: 1.3;
}

.model-card__status {
    display: flex;
    align-items: center;
    gap: var(--space-1, 4px);
    font-size: var(--text-xs, 11px);
}

.model-card__status--owned {
    color: var(--success, #34C759);
}

.model-card__status--owned .model-icon {
    width: 12px;
    height: 12px;
    color: var(--success, #34C759);
}

.model-card__status--shared {
    color: var(--text-tertiary, #86868B);
}

.model-card__status--shared .model-icon {
    width: 12px;
    height: 12px;
    color: var(--text-tertiary, #86868B);
}

.model-card__description {
    flex: 1;
    margin-bottom: var(--space-4, 16px);
}

.model-card__description p,
.model-card__description textarea {
    font-size: var(--text-sm, 13px);
    color: var(--text-secondary, #6E6E73);
    line-height: 1.5;
    margin: 0;
}

.model-card__description p {
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* Learning Settings in Model Card */
.model-card .learning-preferences {
    background: var(--bg-tertiary, #FAFAFA);
    border-radius: var(--radius-sm, 6px);
    padding: var(--space-3, 12px);
    margin-bottom: var(--space-4, 16px);
}

.model-card .learning-preferences-header {
    display: flex;
    align-items: center;
    gap: var(--space-2, 8px);
    font-size: var(--text-xs, 11px);
    font-weight: 600;
    color: var(--text-tertiary, #86868B);
    margin-bottom: var(--space-2, 8px);
}

.model-card .learning-preferences-header .model-icon {
    width: 12px;
    height: 12px;
}

.model-card .learning-toggle-row {
    display: flex;
    align-items: center;
    gap: var(--space-2, 8px);
    font-size: var(--text-xs, 11px);
    color: var(--text-primary, #1D1D1F);
}

.model-card .learning-toggle-row .model-icon {
    width: 12px;
    height: 12px;
    color: var(--warning, #FF9500);
}

.model-card .learning-toggle-hint {
    font-size: var(--text-xs, 11px);
    color: var(--text-tertiary, #86868B);
    margin-top: var(--space-1, 4px);
    padding-left: var(--space-5, 20px);
}

.model-card__actions {
    margin-top: auto;
    padding-top: var(--space-3, 12px);
    border-top: 1px solid var(--border-light, rgba(0, 0, 0, 0.06));
}

/* Editable inputs for model cards */
.model-name-input {
    width: 100%;
    font-size: var(--text-base, 15px);
    font-weight: 600;
    color: var(--text-primary, #1D1D1F);
    background: transparent;
    border: 1px solid transparent;
    border-radius: var(--radius-sm, 6px);
    padding: var(--space-1, 4px) var(--space-2, 8px);
    margin: calc(-1 * var(--space-1, 4px)) calc(-1 * var(--space-2, 8px));
    transition: border-color var(--duration-fast, 150ms), background var(--duration-fast, 150ms);
}

.model-name-input:hover {
    background: var(--bg-tertiary, #FAFAFA);
}

.model-name-input:focus {
    outline: none;
    background: var(--bg-primary, #FFFFFF);
    border-color: var(--accent, #0071E3);
}

.model-description-input {
    width: 100%;
    font-size: var(--text-sm, 13px);
    color: var(--text-secondary, #6E6E73);
    line-height: 1.5;
    background: transparent;
    border: 1px solid transparent;
    border-radius: var(--radius-sm, 6px);
    padding: var(--space-2, 8px);
    margin: calc(-1 * var(--space-2, 8px));
    resize: vertical;
    min-height: 60px;
    transition: border-color var(--duration-fast, 150ms), background var(--duration-fast, 150ms);
}

.model-description-input:hover {
    background: var(--bg-tertiary, #FAFAFA);
}

.model-description-input:focus {
    outline: none;
    background: var(--bg-primary, #FFFFFF);
    border-color: var(--accent, #0071E3);
}

.model-description-input::placeholder {
    color: var(--text-tertiary, #86868B);
}

/* Dark theme for editable inputs */
[data-theme="dark"] .model-name-input {
    color: var(--text-primary, #F5F5F7);
}

[data-theme="dark"] .model-name-input:hover {
    background: var(--bg-tertiary, #3A3A3C);
}

[data-theme="dark"] .model-name-input:focus {
    background: var(--bg-secondary, #2C2C2E);
}

[data-theme="dark"] .model-description-input {
    color: var(--text-secondary, #A1A1A6);
}

[data-theme="dark"] .model-description-input:hover {
    background: var(--bg-tertiary, #3A3A3C);
}

[data-theme="dark"] .model-description-input:focus {
    background: var(--bg-secondary, #2C2C2E);
}

.model-actions {
    display: flex;
    align-items: center;
    gap: var(--space-1, 4px);
}

/* Model Icon default styling */
.model-icon {
    width: 16px;
    height: 16px;
    flex-shrink: 0;
}

/* Learning preferences section */
.learning-preferences {
    padding: var(--space-3, 12px);
    margin-bottom: var(--space-3, 12px);
}

.learning-preferences .model-icon {
    width: 14px;
    height: 14px;
    color: var(--text-tertiary, #86868B);
}

/* Dark theme for model cards */
[data-theme="dark"] .model-card {
    background: var(--bg-primary, #1C1C1E);
    border-color: var(--border-light, rgba(255, 255, 255, 0.08));
}

[data-theme="dark"] .model-card__icon {
    background: rgba(0, 113, 227, 0.15);
}

[data-theme="dark"] .model-card__title {
    color: var(--text-primary, #F5F5F7);
}

[data-theme="dark"] .model-card__status--owned {
    color: var(--success, #34C759);
}

[data-theme="dark"] .model-card__status--shared {
    color: var(--text-tertiary, #A1A1A6);
}

[data-theme="dark"] .model-card__description p,
[data-theme="dark"] .model-card__description textarea {
    color: var(--text-secondary, #A1A1A6);
}

[data-theme="dark"] .model-card .learning-preferences {
    background: var(--bg-tertiary, #3A3A3C);
}

[data-theme="dark"] .model-card .learning-toggle-row {
    color: var(--text-primary, #F5F5F7);
}

[data-theme="dark"] .model-card__actions {
    border-color: var(--border-light, rgba(255, 255, 255, 0.08));
}

/* =============================================================================
   TABLE SORT ICONS
   ============================================================================= */

.sort-icon {
    width: 12px;
    height: 12px;
    margin-left: var(--space-1, 4px);
    color: var(--text-tertiary, #86868B);
    flex-shrink: 0;
    vertical-align: middle;
}

.sort-icon--active {
    color: var(--accent, #0071E3);
}

/* =============================================================================
   SORT BUTTON - Clean Header Style
   ============================================================================= */

.sort-button {
    display: inline-flex;
    align-items: center;
    gap: var(--space-1, 4px);
    background: none;
    border: none;
    padding: 0;
    font: inherit;
    cursor: pointer;
    color: var(--text-tertiary, #86868B);
    font-size: var(--text-xs, 11px);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    transition: color var(--duration-fast, 150ms);
}

.sort-button:hover {
    color: var(--text-primary, #1D1D1F);
}

.sort-button:focus {
    outline: none;
}

.sort-button:focus-visible {
    outline: 2px solid var(--accent, #0071E3);
    outline-offset: 2px;
    border-radius: var(--radius-sm, 6px);
}

/* =============================================================================
   HEURISTICS TABLE - Manage Reasoning
   ============================================================================= */

.heuristics-table-container {
    border: 1px solid var(--border-light, rgba(0, 0, 0, 0.06));
    border-radius: var(--radius-md, 12px);
    overflow: hidden;
}

.heuristics-table {
    width: 100%;
    border-collapse: collapse;
    font-size: var(--text-sm, 13px);
}

.heuristics-table thead {
    position: sticky;
    top: 0;
    z-index: 1;
}

.heuristics-table th {
    padding: var(--space-3, 12px) var(--space-4, 16px);
    text-align: left;
    background: var(--bg-secondary, #F5F5F7);
    border-bottom: 1px solid var(--border-light, rgba(0, 0, 0, 0.06));
    font-size: var(--text-xs, 11px);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-tertiary, #86868B);
}

.heuristics-table td {
    padding: var(--space-3, 12px) var(--space-4, 16px);
    text-align: left;
    border-bottom: 1px solid var(--border-light, rgba(0, 0, 0, 0.06));
    vertical-align: top;
    color: var(--text-primary, #1D1D1F);
}

.heuristics-table tbody tr {
    transition: background var(--duration-fast, 150ms);
}

.heuristics-table tbody tr:hover {
    background: var(--bg-secondary, #F5F5F7);
}

.heuristics-table tbody tr.is-selected {
    background: var(--accent-subtle, rgba(0, 113, 227, 0.12));
}

.heuristics-table tbody tr.is-selected td {
    color: var(--accent, #0071E3);
}

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

/* Category badge */
.heuristics-table .category-badge {
    display: inline-block;
    font-size: var(--text-xs, 11px);
    font-weight: 500;
    color: var(--text-secondary, #6E6E73);
    background: var(--bg-tertiary, #FAFAFA);
    padding: var(--space-1, 4px) var(--space-2, 8px);
    border-radius: var(--radius-sm, 6px);
    border: 1px solid var(--border-light, rgba(0, 0, 0, 0.06));
}

/* Heuristics table cell content */
.heuristics-table .toggle-button {
    background: none;
    border: none;
    padding: 0;
    color: var(--accent, #0071E3);
    font-size: var(--text-xs, 11px);
    cursor: pointer;
    margin-top: var(--space-1, 4px);
}

.heuristics-table .toggle-button:hover {
    text-decoration: underline;
}

.heuristics-table .preview-text {
    font-size: var(--text-sm, 13px);
    color: var(--text-secondary, #6E6E73);
    line-height: 1.5;
}

.heuristics-table .quote-text {
    font-size: var(--text-sm, 13px);
    font-style: italic;
    color: var(--text-secondary, #6E6E73);
}

.heuristics-table .empty-content {
    color: var(--text-tertiary, #86868B);
    font-style: italic;
}

/* Heuristic card (Explore view) */
.heuristic-card {
    background: var(--bg-primary, #FFFFFF);
    border: 1px solid var(--border-light, rgba(0, 0, 0, 0.06));
    border-radius: var(--radius-md, 12px);
    padding: var(--space-4, 16px);
    box-shadow: var(--shadow-sm);
    transition: box-shadow var(--duration-fast, 150ms);
}

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

.heuristic-card .card-header {
    margin-bottom: var(--space-3, 12px);
}

.heuristic-card h4 {
    font-size: var(--text-base, 15px);
    font-weight: 600;
    color: var(--text-primary, #1D1D1F);
    margin: 0;
}

.heuristic-card .card-body {
    font-size: var(--text-sm, 13px);
    color: var(--text-secondary, #6E6E73);
    line-height: 1.5;
}

.heuristic-card .card-section {
    margin-bottom: var(--space-3, 12px);
}

.heuristic-card .card-section-title {
    font-size: var(--text-xs, 11px);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-tertiary, #86868B);
    margin-bottom: var(--space-1, 4px);
}

/* Dark theme for heuristic cards */
[data-theme="dark"] .heuristic-card {
    background: var(--bg-primary, #1C1C1E);
    border-color: var(--border-light, rgba(255, 255, 255, 0.08));
}

[data-theme="dark"] .heuristic-card h4 {
    color: var(--text-primary, #F5F5F7);
}

/* Heuristics pagination */
.heuristics-pagination {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-3, 12px) var(--space-4, 16px);
    background: var(--bg-primary, #FFFFFF);
    border-top: 1px solid var(--border-light, rgba(0, 0, 0, 0.06));
    font-size: var(--text-sm, 13px);
    color: var(--text-secondary, #6E6E73);
}

.heuristics-pagination .page-info {
    display: flex;
    align-items: center;
    gap: var(--space-2, 8px);
}

.heuristics-pagination .page-size-selector {
    display: flex;
    align-items: center;
    gap: var(--space-2, 8px);
}

.heuristics-pagination .page-size-selector select {
    padding: var(--space-1, 4px) var(--space-2, 8px);
    border: 1px solid var(--border-medium, rgba(0, 0, 0, 0.12));
    border-radius: var(--radius-sm, 6px);
    background: var(--bg-primary, #FFFFFF);
    font-size: var(--text-sm, 13px);
    color: var(--text-primary, #1D1D1F);
}

.heuristics-pagination .page-controls {
    display: flex;
    align-items: center;
    gap: var(--space-1, 4px);
}

.heuristics-pagination .page-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    border: 1px solid var(--border-medium, rgba(0, 0, 0, 0.12));
    border-radius: var(--radius-sm, 6px);
    background: var(--bg-primary, #FFFFFF);
    color: var(--text-secondary, #6E6E73);
    cursor: pointer;
    transition: all var(--duration-fast, 150ms);
}

.heuristics-pagination .page-btn:hover:not(:disabled) {
    background: var(--bg-secondary, #F5F5F7);
    color: var(--text-primary, #1D1D1F);
}

.heuristics-pagination .page-btn:disabled {
    opacity: 0.4;
    cursor: not-allowed;
}

/* Dark theme for heuristics table */
[data-theme="dark"] .heuristics-table-container {
    border-color: var(--border-light, rgba(255, 255, 255, 0.08));
}

[data-theme="dark"] .heuristics-table th {
    background: var(--bg-secondary, #2C2C2E);
}

[data-theme="dark"] .heuristics-table tbody tr:hover {
    background: var(--bg-secondary, #2C2C2E);
}

[data-theme="dark"] .heuristics-table td {
    color: var(--text-primary, #F5F5F7);
}

[data-theme="dark"] .heuristics-table .preview-text,
[data-theme="dark"] .heuristics-table .quote-text {
    color: var(--text-secondary, #A1A1A6);
}

[data-theme="dark"] .heuristics-table .category-badge {
    background: var(--bg-tertiary, #3A3A3C);
    border-color: var(--border-light, rgba(255, 255, 255, 0.08));
    color: var(--text-secondary, #A1A1A6);
}

[data-theme="dark"] .sort-button {
    color: var(--text-tertiary, #A1A1A6);
}

[data-theme="dark"] .sort-button:hover {
    color: var(--text-primary, #F5F5F7);
}

[data-theme="dark"] .heuristics-pagination {
    background: var(--bg-primary, #1C1C1E);
    border-color: var(--border-light, rgba(255, 255, 255, 0.08));
}

[data-theme="dark"] .heuristics-pagination .page-size-selector select {
    background: var(--bg-secondary, #2C2C2E);
    border-color: var(--border-medium, rgba(255, 255, 255, 0.12));
    color: var(--text-primary, #F5F5F7);
}

[data-theme="dark"] .heuristics-pagination .page-btn {
    background: var(--bg-secondary, #2C2C2E);
    border-color: var(--border-medium, rgba(255, 255, 255, 0.12));
    color: var(--text-secondary, #A1A1A6);
}

[data-theme="dark"] .heuristics-pagination .page-btn:hover:not(:disabled) {
    background: var(--bg-tertiary, #3A3A3C);
    color: var(--text-primary, #F5F5F7);
}

/* Responsive */
@media (max-width: 768px) {
    .completion-kpi-grid {
        grid-template-columns: 1fr;
    }
    
    .completion-filter-bar {
        flex-direction: column;
        align-items: stretch;
    }
    
    .completion-filter-tabs {
        overflow-x: auto;
    }
    
    .completion-search {
        width: 100%;
    }
    
    .completion-table-wrapper,
    .dimension-table-wrapper {
        overflow-x: auto;
    }
    
    .completion-table,
    .dimension-table {
        min-width: 600px;
    }
    
    .student-completion-modal-overlay {
        padding: 0;
    }
    
    .student-completion-modal {
        max-height: 100vh;
        border-radius: 0;
    }
    
    .cohort-grid {
        grid-template-columns: 1fr;
    }
    
    .cohort-card-footer {
        flex-direction: column;
        gap: var(--space-3, 12px);
        align-items: stretch;
    }
    
    .cohort-card-footer .btn {
        width: 100%;
    }
    
    .cohort-actions {
        justify-content: center;
    }
}