* =============================================================
   theEducator.ai — Teacher Dashboard Design System
   class-management.css
   Modern, premium, production-ready SaaS educational platform
   ============================================================= */

/* ----------------------------------------------------------
   DESIGN TOKENS
   ---------------------------------------------------------- */
:root {
  /* Brand palette */
  --eai-blue-50:  #eff6ff;
  --eai-blue-100: #dbeafe;
  --eai-blue-200: #bfdbfe;
  --eai-blue-500: #3b82f6;
  --eai-blue-600: #2563eb;
  --eai-blue-700: #1d4ed8;

  /* Neutrals */
  --eai-gray-50:  #f8fafc;
  --eai-gray-100: #f1f5f9;
  --eai-gray-200: #e2e8f0;
  --eai-gray-300: #cbd5e1;
  --eai-gray-400: #94a3b8;
  --eai-gray-500: #64748b;
  --eai-gray-600: #475569;
  --eai-gray-700: #334155;
  --eai-gray-800: #1e293b;
  --eai-gray-900: #0f172a;

  /* Semantic colours */
  --eai-success-bg:   #d1fae5;
  --eai-success-text: #065f46;
  --eai-success-border: #10b981;
  --eai-warning-bg:   #fefce8;
  --eai-warning-text: #854d0e;
  --eai-warning-border: #eab308;
  --eai-danger-bg:    #fee2e2;
  --eai-danger-text:  #991b1b;
  --eai-danger-border: #ef4444;
  --eai-info-bg:      #eff6ff;
  --eai-info-text:    #1e40af;
  --eai-info-border:  #3b82f6;

  /* Score colours */
  --eai-score-green-bg:   #d1fae5;
  --eai-score-green-text: #065f46;
  --eai-score-amber-bg:   #fef3c7;
  --eai-score-amber-text: #92400e;
  --eai-score-red-bg:     #fee2e2;
  --eai-score-red-text:   #991b1b;
  --eai-score-unknown-bg: #f1f5f9;
  --eai-score-unknown-text: #475569;

  /* Surfaces */
  --eai-surface:        #ffffff;
  --eai-surface-raised: #ffffff;
  --eai-bg-page:        #f0f4f8;

  /* Shadows */
  --eai-shadow-sm:  0 1px 3px rgba(0,0,0,0.06), 0 1px 2px rgba(0,0,0,0.04);
  --eai-shadow-md:  0 4px 12px rgba(0,0,0,0.08), 0 2px 6px rgba(0,0,0,0.05);
  --eai-shadow-lg:  0 10px 30px rgba(0,0,0,0.10), 0 4px 12px rgba(0,0,0,0.06);
  --eai-shadow-xl:  0 20px 50px rgba(0,0,0,0.14), 0 8px 20px rgba(0,0,0,0.08);
  --eai-shadow-modal: 0 25px 60px rgba(0,0,0,0.18);

  /* Radii */
  --eai-radius-sm:  6px;
  --eai-radius-md:  10px;
  --eai-radius-lg:  14px;
  --eai-radius-xl:  20px;
  --eai-radius-pill: 999px;

  /* Spacing scale */
  --eai-space-1: 4px;
  --eai-space-2: 8px;
  --eai-space-3: 12px;
  --eai-space-4: 16px;
  --eai-space-5: 20px;
  --eai-space-6: 24px;
  --eai-space-8: 32px;
  --eai-space-10: 40px;
  --eai-space-12: 48px;

  /* Typography */
  --eai-font-family: -apple-system, BlinkMacSystemFont, 'Inter', 'Segoe UI', Roboto, sans-serif;
  --eai-font-mono:   'SFMono-Regular', Consolas, 'Liberation Mono', monospace;

  /* Transitions */
  --eai-transition: 0.18s ease;
  --eai-transition-slow: 0.3s ease;
}

/* ----------------------------------------------------------
   NAVIGATION SEPARATORS (preserved original selectors)
   ---------------------------------------------------------- */
.menu-item-eai[data-category="dashboard"] {
    position: relative;
}

.menu-item-eai[data-category="dashboard"]::after {
    content: "";
    position: absolute;
    top: 10%;
    right: -10px;
    height: 80%;
    width: 1px;
    background-color: var(--eai-gray-300);
}

/* Classes Direct Link Styling */
.classes-direct-link {
    position: relative;
}

.classes-direct-link::before {
    content: "";
    position: absolute;
    top: 10%;
    left: -10px;
    height: 80%;
    width: 1px;
    background-color: var(--eai-gray-300);
}

.classes-direct-link:hover {
    background-color: var(--eai-blue-50);
    border-radius: var(--eai-radius-sm);
}

/* =============================================================
   STUDENT SIGN UP FORM
   ============================================================= */

.csuk-auth-wrapper {
    max-width: 480px;
    margin: var(--eai-space-8) auto;
}

.csuk-auth-panel {
    border: 1px solid var(--eai-gray-200);
    border-radius: var(--eai-radius-lg);
    padding: var(--eai-space-8);
    background: var(--eai-surface);
    box-shadow: var(--eai-shadow-md);
}

.signup-message {
    margin-bottom: var(--eai-space-4);
}

.signup-error {
    background: var(--eai-danger-bg);
    color: var(--eai-danger-text);
    padding: var(--eai-space-3) var(--eai-space-4);
    border: 1px solid var(--eai-danger-border);
    border-left: 4px solid var(--eai-danger-border);
    border-radius: var(--eai-radius-md);
    font-size: 0.9rem;
    text-align: center;
    margin-bottom: var(--eai-space-4);
}

.eai-coder-custom-form label {
    display: block;
    font-weight: 600;
    color: var(--eai-gray-700);
    margin-bottom: var(--eai-space-1);
    font-size: 0.875rem;
}

.eai-coder-custom-form input[type="text"],
.eai-coder-custom-form input[type="email"],
.eai-coder-custom-form input[type="password"] {
    width: 100%;
    padding: 10px 14px;
    border: 1.5px solid var(--eai-gray-300);
    border-radius: var(--eai-radius-md);
    font-size: 0.95rem;
    background: var(--eai-gray-50);
    color: var(--eai-gray-800);
    transition: border-color var(--eai-transition), box-shadow var(--eai-transition);
    box-sizing: border-box;
    margin-bottom: var(--eai-space-4);
}

.eai-coder-custom-form input[type="text"]:focus,
.eai-coder-custom-form input[type="email"]:focus,
.eai-coder-custom-form input[type="password"]:focus {
    border-color: var(--eai-blue-500);
    box-shadow: 0 0 0 3px rgba(59,130,246,0.12);
    outline: none;
    background: var(--eai-surface);
}

#signup-submit-button {
    width: 100%;
    padding: 12px;
    background: var(--eai-blue-600);
    color: #fff;
    border: none;
    border-radius: var(--eai-radius-md);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: background var(--eai-transition), transform var(--eai-transition);
    margin-top: var(--eai-space-2);
}

#signup-submit-button:hover {
    background: var(--eai-blue-700);
    transform: translateY(-1px);
}

#signup-submit-button:disabled {
    background: var(--eai-gray-400);
    cursor: not-allowed;
    transform: none;
}



/* =============================================================
   CREATE GROUP FORM
   ============================================================= */

#create-group-form {
    background: var(--eai-surface);
    border: 1px solid var(--eai-gray-200);
    padding: var(--eai-space-8);
    border-radius: var(--eai-radius-lg);
    max-width: 720px;
    margin: 0 auto;
    box-shadow: var(--eai-shadow-md);
    display: flex;
    flex-direction: column;
    gap: var(--eai-space-5);
}

#create-group-form input[type="text"],
#create-group-form input[type="number"],
#create-group-form input[type="password"],
#create-group-form input[type="email"] {
    width: 100%;
    padding: 11px 14px;
    font-size: 0.95rem;
    border: 1.5px solid var(--eai-gray-300);
    border-radius: var(--eai-radius-md);
    background: var(--eai-gray-50);
    color: var(--eai-gray-800);
    transition: border-color var(--eai-transition), box-shadow var(--eai-transition);
    box-sizing: border-box;
}

#create-group-form input:focus {
    border-color: var(--eai-blue-500);
    box-shadow: 0 0 0 3px rgba(59,130,246,0.12);
    outline: none;
    background: var(--eai-surface);
}

#create-group-form input[type="submit"] {
    background: linear-gradient(135deg, var(--eai-blue-500) 0%, var(--eai-blue-600) 100%);
    color: #fff;
    padding: 13px var(--eai-space-8);
    font-size: 1rem;
    font-weight: 600;
    border: none;
    border-radius: var(--eai-radius-md);
    cursor: pointer;
    transition: transform var(--eai-transition), box-shadow var(--eai-transition);
    box-shadow: 0 4px 14px rgba(59,130,246,0.30);
    letter-spacing: 0.01em;
	padding: 10px !important;
    margin-top: 10px !important;
}

#create-group-form input[type="submit"]:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(59,130,246,0.40);
}

#create-group-form input[type="submit"]:disabled {
    background: var(--eai-gray-400);
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}

#create-group-form p {
    font-weight: 500;
    color: var(--eai-gray-600);
    font-size: 0.9rem;
    text-align: center;
    margin-bottom: var(--eai-space-2);
}

#group-message {
    margin-top: var(--eai-space-4);
    text-align: center;
}

#group-message p {
    padding: var(--eai-space-3) var(--eai-space-5);
    border-radius: var(--eai-radius-md);
    font-size: 0.9rem;
    font-weight: 500;
}

#group-message p[style*="color: green;"] {
    background: var(--eai-success-bg);
    color: var(--eai-success-text);
    border-left: 4px solid var(--eai-success-border);
}

#group-message p[style*="color: red;"] {
    background: var(--eai-danger-bg);
    color: var(--eai-danger-text);
    border-left: 4px solid var(--eai-danger-border);
}

.create-group-header {
    text-align: center;
    margin-bottom: var(--eai-space-6);
}

.create-group-header h2 {
    margin: 0 0 var(--eai-space-2);
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--eai-gray-800);
    letter-spacing: -0.02em;
}

.create-group-header p {
    margin: 0;
    color: var(--eai-gray-500);
    font-size: 0.95rem;
    line-height: 1.6;
    max-width: 560px;
    margin: 0 auto;
}

#create-group-form label {
    font-weight: 600;
    margin-bottom: var(--eai-space-1);
    display: block;
    color: var(--eai-gray-700);
    font-size: 0.875rem;
}

#create-group-form input[type="number"] {
    width: 50%;
    max-width: 200px;
}

/* =============================================================
   TEACHER DASHBOARD — MAIN CONTAINER
   ============================================================= */

.class-dashboard {
    background: var(--eai-bg-page);
    padding: var(--eai-space-6) var(--eai-space-5);
    border-radius: var(--eai-radius-lg);
    font-family: var(--eai-font-family);
}

.class-dashboard h2 {
    font-size: 1.6rem;
    font-weight: 700;
    color: var(--eai-gray-800);
    margin: 0 0 var(--eai-space-6);
    letter-spacing: -0.025em;
    line-height: 1.2;
}

.class-dashboard h3 {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--eai-gray-700);
    margin: var(--eai-space-6) 0 var(--eai-space-4);
    display: flex;
    align-items: center;
    gap: var(--eai-space-2);
    letter-spacing: -0.01em;
}

.class-dashboard h3::before {
    content: '';
    display: inline-block;
    width: 4px;
    height: 1.1em;
    background: var(--eai-blue-500);
    border-radius: 2px;
    flex-shrink: 0;
}

.empty-class-message {
    background: var(--eai-surface);
    padding: var(--eai-space-10) var(--eai-space-8);
    border-radius: var(--eai-radius-lg);
    border: 1.5px dashed var(--eai-gray-300);
    text-align: center;
    color: var(--eai-gray-500);
    font-size: 0.95rem;
    line-height: 1.7;
}

/* =============================================================
   TASK TABLE
   ============================================================= */

.dashboard-table-wrapper {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    border-radius: var(--eai-radius-lg);
    box-shadow: var(--eai-shadow-md);
    background: var(--eai-surface);
}

.dashboard-table {
    width: 100%;
    border-collapse: collapse;
    margin: 0;
    background: var(--eai-surface);
    border-radius: var(--eai-radius-lg);
    overflow: hidden;
    font-size: 0.875rem;
}

.dashboard-table thead {
    position: sticky;
    top: 0;
    z-index: 10;
}

.dashboard-table th {
    background: var(--eai-gray-800);
    color: var(--eai-gray-100);
    font-weight: 600;
    font-size: 0.78rem;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    padding: 13px 16px;
    text-align: left;
    white-space: nowrap;
    border-bottom: none;
}

.dashboard-table td {
    padding: 13px 16px;
    border-bottom: 1px solid var(--eai-gray-100);
    color: var(--eai-gray-700);
    vertical-align: middle;
    line-height: 1.5;
}

.dashboard-table tbody tr {
    transition: background-color var(--eai-transition);
}

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

.dashboard-table tbody tr:hover {
    background-color: var(--eai-blue-50);
}

.dashboard-table th:nth-child(1),
.dashboard-table td:nth-child(1) {
    width: 36%;
}

.dashboard-table th:nth-child(n+2),
.dashboard-table td:nth-child(n+2) {
    width: 11%;
}

/* Task title link */
.csuk-open-assessment-modal {
    cursor: pointer;
    color: var(--eai-blue-600) !important;
    font-weight: 500;
    text-decoration: none !important;
    transition: color var(--eai-transition);
    display: inline-block;
}

.csuk-open-assessment-modal:hover {
    color: var(--eai-blue-700) !important;
    text-decoration: underline !important;
}

/* Score pill */
.avg-score {
    font-weight: 600;
    font-size: 0.8rem;
    padding: 4px 10px;
    border-radius: var(--eai-radius-pill);
    display: inline-flex;
    align-items: center;
    cursor: default;
    white-space: nowrap;
    letter-spacing: 0.01em;
}

.avg-score.score-green {
    background-color: var(--eai-score-green-bg);
    color: var(--eai-score-green-text);
}

.avg-score.score-amber {
    background-color: var(--eai-score-amber-bg);
    color: var(--eai-score-amber-text);
}

.avg-score.score-red {
    background-color: var(--eai-score-red-bg);
    color: var(--eai-score-red-text);
}

.avg-score.score-unknown {
    background-color: var(--eai-score-unknown-bg);
    color: var(--eai-score-unknown-text);
}

/* Tooltip */
.avg-score[title]:hover::after {
    content: attr(title);
    white-space: pre;
    background: var(--eai-gray-900);
    color: #fff;
    padding: var(--eai-space-2) var(--eai-space-3);
    border-radius: var(--eai-radius-md);
    position: absolute;
    z-index: 999;
    font-size: 0.8rem;
    line-height: 1.5;
    transform: translateY(-110%);
    max-width: 280px;
    box-shadow: var(--eai-shadow-lg);
    pointer-events: none;
}

/* Monitor icon button */
.view-task-details {
    font-size: 1.1rem;
    cursor: pointer;
    opacity: 0.7;
    transition: opacity var(--eai-transition), transform var(--eai-transition);
    display: inline-block;
    padding: 4px 6px;
    border-radius: var(--eai-radius-sm);
}

.view-task-details:hover {
    opacity: 1;
    transform: scale(1.15);
    background: var(--eai-blue-50);
}

/* Delete assignment button */
.csuk-delete-assignment {
    background: none;
    border: 1.5px solid var(--eai-gray-300);
    border-radius: var(--eai-radius-sm);
    padding: 4px 8px;
    font-size: 0.95rem;
    cursor: pointer;
    color: var(--eai-gray-500);
    transition: background var(--eai-transition), color var(--eai-transition), border-color var(--eai-transition);
    line-height: 1;
}

.csuk-delete-assignment:hover {
    background: var(--eai-danger-bg);
    color: var(--eai-danger-text);
    border-color: var(--eai-danger-border);
}

.csuk-delete-assignment:disabled {
    opacity: 0.4;
    cursor: not-allowed;
}

/* Inline date editing */
.csuk-editable-date {
    cursor: pointer;
    border-bottom: 1.5px dashed var(--eai-gray-400);
    transition: background var(--eai-transition), color var(--eai-transition);
    border-radius: 2px;
    padding: 1px 3px;
    color: var(--eai-gray-700);
    font-size: 0.825rem;
}

.csuk-editable-date:hover {
    background: var(--eai-blue-50);
    color: var(--eai-blue-700);
    border-color: var(--eai-blue-400);
}

.csuk-inline-dt {
    font-size: 0.825rem;
    border: 1.5px solid var(--eai-blue-500);
    border-radius: var(--eai-radius-sm);
    padding: 3px 6px;
    background: var(--eai-surface);
    color: var(--eai-gray-800);
    max-width: 200px;
}

/* =============================================================
   PERFORMANCE INSIGHTS CARDS
   ============================================================= */

.student-performance-insights {
    margin-bottom: var(--eai-space-8);
}

.student-performance-insights h3 {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--eai-gray-700);
    margin: 0 0 var(--eai-space-4);
    display: flex;
    align-items: center;
    gap: var(--eai-space-2);
}

.student-performance-insights h3::before {
    content: '';
    display: inline-block;
    width: 4px;
    height: 1.1em;
    background: var(--eai-blue-500);
    border-radius: 2px;
}

.csuk-insights-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: var(--eai-space-4);
}

.csuk-insight-card {
    background: var(--eai-surface);
    border: 1px solid var(--eai-gray-200);
    border-radius: var(--eai-radius-lg);
    padding: var(--eai-space-5) var(--eai-space-4);
    box-shadow: var(--eai-shadow-sm);
    transition: box-shadow var(--eai-transition-slow), transform var(--eai-transition-slow);
    min-width: 0;
}

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

.csuk-card-inner {
    display: flex;
    flex-direction: column;
    gap: var(--eai-space-3);
}

.csuk-insight-card h4 {
    font-size: 0.8rem;
    font-weight: 700;
    color: var(--eai-gray-500);
    text-transform: uppercase;
    letter-spacing: 0.06em;
    margin: 0;
}

.csuk-stat-line {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--eai-space-2);
}

.csuk-stat-label {
    font-size: 0.8rem;
    color: var(--eai-gray-500);
    font-weight: 500;
}

.csuk-circle {
    font-size: 0.8rem;
    font-weight: 700;
    padding: 4px 10px;
    border-radius: var(--eai-radius-pill);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 40px;
    letter-spacing: 0.01em;
}

.csuk-insight-assigned {
    background: var(--eai-gray-100);
    color: var(--eai-gray-700);
}

.csuk-insight-attempted {
    background: var(--eai-blue-100);
    color: var(--eai-blue-700);
}

.average_score_sc {
    font-size: 0.8rem;
    font-weight: 700;
    padding: 4px 10px;
    border-radius: var(--eai-radius-pill);
    display: inline-flex;
    align-items: center;
    min-width: 40px;
    justify-content: center;
}

.average_score_sc.score-green {
    background: var(--eai-score-green-bg);
    color: var(--eai-score-green-text);
}

.average_score_sc.score-amber {
    background: var(--eai-score-amber-bg);
    color: var(--eai-score-amber-text);
}

.average_score_sc.score-red {
    background: var(--eai-score-red-bg);
    color: var(--eai-score-red-text);
}

.average_score_sc.score-unknown {
    background: var(--eai-score-unknown-bg);
    color: var(--eai-score-unknown-text);
}

/* =============================================================
   DASHBOARD ACTION BUTTONS (GROUP TOOLS)
   ============================================================= */

.dashboard-buttons {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(130px, 1fr));
    gap: var(--eai-space-4);
    margin: var(--eai-space-6) 0;
    max-width: 800px;
}

.dashboard-button {
    background: var(--eai-surface);
    border: 1.5px solid var(--eai-gray-200);
    border-radius: var(--eai-radius-lg);
    padding: var(--eai-space-5) var(--eai-space-3);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: var(--eai-space-2);
    box-shadow: var(--eai-shadow-sm);
    transition: transform var(--eai-transition-slow), box-shadow var(--eai-transition-slow), border-color var(--eai-transition-slow), background var(--eai-transition-slow);
    cursor: pointer;
    text-align: center;
    min-height: 110px;
}

.dashboard-button:hover {
    transform: translateY(-4px);
    box-shadow: var(--eai-shadow-lg);
    border-color: var(--eai-blue-300);
    background: var(--eai-blue-50) !important;
}

.dashboard-button img {
    width: 48px;
    height: 48px;
    object-fit: contain;
    transition: transform var(--eai-transition);
}

.dashboard-button:hover img {
    transform: scale(1.08);
}

.dashboard-button span {
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--eai-gray-700);
    line-height: 1.3;
}

.dashboard-button.danger {
    background: var(--eai-danger-bg);
    border-color: var(--eai-danger-border);
    color: var(--eai-danger-text);
}

.dashboard-button.danger:hover {
    background: #fca5a5 !important;
    border-color: var(--eai-danger-border);
    transform: translateY(-3px);
}

/* =============================================================
   DASHBOARD MODALS (TOOL PANELS)
   ============================================================= */

.dashboard-modal-wrapper {
    display: none;
    position: fixed;
    z-index: 9999;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(15, 23, 42, 0.65);
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
    justify-content: center;
    align-items: center;
    animation: eai-backdrop-in var(--eai-transition-slow) ease;
}

@keyframes eai-backdrop-in {
    from { opacity: 0; }
    to   { opacity: 1; }
}

.dashboard-modal {
    background: var(--eai-surface);
    border-radius: var(--eai-radius-xl);
    box-shadow: var(--eai-shadow-modal);
    position: relative;
    overflow-y: auto;
    width: calc(100vw - 48px);
    height: calc(100vh - 48px);
    max-width: 1480px;
    max-height: calc(100vh - 48px);
    margin: auto;
    animation: eai-modal-in 0.22s cubic-bezier(0.34, 1.56, 0.64, 1);
    padding: var(--eai-space-8);
}

@keyframes eai-modal-in {
    from { opacity: 0; transform: scale(0.96) translateY(10px); }
    to   { opacity: 1; transform: scale(1) translateY(0); }
}

/* Close button — shared between modal types */
.dashboard-modal-close,
.eai-modal-close-mb,
.csuk-modal-close,
#csuk-modal-close {
    position: sticky;
    top: 0;
    float: right;
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--eai-gray-800);
    color: #fff;
    font-size: 20px;
    font-weight: 700;
    border-radius: var(--eai-radius-pill);
    cursor: pointer;
    z-index: 20;
    transition: background var(--eai-transition), transform var(--eai-transition);
    line-height: 1;
    margin-left: auto;
    border: none;
    flex-shrink: 0;
}

.dashboard-modal-close:hover,
.eai-modal-close-mb:hover,
.csuk-modal-close:hover,
#csuk-modal-close:hover {
    background: var(--eai-danger-border);
    transform: scale(1.08);
}

/* =============================================================
   MARKBOOK TABLE
   ============================================================= */

.eai_markbook_table {
    overflow-x: auto;
    width: 100%;
    display: block;
    border-radius: var(--eai-radius-lg);
    background: var(--eai-surface);
}

.eai_markbook_table table {
    border-collapse: separate;
    border-spacing: 0;
    width: 100%;
    font-size: 0.84rem;
    border: none;
}

.eai_markbook_table thead {
    position: sticky;
    top: 0;
    z-index: 50;
    background: var(--eai-surface);
}

.eai_markbook_table thead tr {
    background: #f8fafc;
}

.eai_markbook_table th,
.eai_markbook_table td {
    border: 0;
    border-bottom: 1px solid var(--eai-gray-200);
    text-align: center;
    white-space: nowrap;
    color: var(--eai-gray-800) !important;
    padding: 11px 14px;
    vertical-align: middle;
}

.eai_markbook_table th {
    color: var(--eai-gray-600) !important;
    font-size: 0.72rem;
    font-weight: 800;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    background: #f8fafc;
    z-index: 1;
    cursor: pointer;
    height: auto;
    position: relative;
    padding: 13px 14px;
}

.eai_markbook_table tr th:first-child,
.eai_markbook_table tr td:first-child {
    min-width: 160px;
    text-align: left;
    position: sticky;
    left: 0;
    background-color: var(--eai-surface);
    color: var(--eai-gray-800) !important;
    z-index: 2;
    font-weight: 700;
    padding-left: 18px;
    border-right: 1px solid var(--eai-gray-200);
}

.eai_markbook_table thead tr th:first-child {
    background: #f8fafc;
    z-index: 55;
}

.eai_markbook_table tr th:not(:first-child),
.eai_markbook_table tr td:not(:first-child) {
    min-width: 90px;
    max-width: 160px;
}

.eai_markbook_table th > div {
    transform: none !important;
    width: auto !important;
}

.eai_markbook_table th > div > span {
    padding: 0 !important;
    border-top: none !important;
    font-size: inherit !important;
    color: inherit !important;
    display: block;
    overflow: hidden;
    text-overflow: ellipsis;
    max-width: 140px;
}

.eai_markbook_table tbody tr:hover td {
    background: #f7fbff;
}

.eai_markbook_table tbody tr:hover td:first-child {
    background: #f0f6ff;
}

/* Markbook score cell colours — matches PHP class output */
.eai_markbook_table td.green,
.eai_markbook_table td.score-green  { background: var(--eai-score-green-bg) !important; }
.eai_markbook_table td.amber,
.eai_markbook_table td.score-amber  { background: var(--eai-score-amber-bg) !important; }
.eai_markbook_table td.red,
.eai_markbook_table td.score-red    { background: var(--eai-score-red-bg) !important; }
.eai_markbook_table td.neutral,
.eai_markbook_table td.score-unknown { background: var(--eai-score-unknown-bg) !important; }

.eai_markbook_table td.green span,
.eai_markbook_table td.score-green span  { color: var(--eai-score-green-text) !important; font-weight: 700; }
.eai_markbook_table td.amber span,
.eai_markbook_table td.score-amber span  { color: var(--eai-score-amber-text) !important; font-weight: 700; }
.eai_markbook_table td.red span,
.eai_markbook_table td.score-red span    { color: var(--eai-score-red-text) !important; font-weight: 700; }
.eai_markbook_table td.neutral span,
.eai_markbook_table td.score-unknown span { color: var(--eai-score-unknown-text) !important; }

.eai_markbook_table td.student-row {
    cursor: pointer;
    transition: background var(--eai-transition);
}

.eai_markbook_table td.student-row:hover {
    background-color: var(--eai-blue-50);
}

/* Sortable headers */
th.sortable {
    cursor: pointer;
    position: relative;
    user-select: none;
}

th.sortable:hover {
    background-color: var(--eai-gray-100);
}

th.sorted-asc::after {
    content: "â–²";
    position: absolute;
    right: 6px;
    top: 50%;
    transform: translateY(-50%);
    font-size: 10px;
    color: var(--eai-blue-500);
    opacity: 0.8;
}

th.sorted-desc::after {
    content: "â–¼";
    position: absolute;
    right: 6px;
    top: 50%;
    transform: translateY(-50%);
    font-size: 10px;
    color: var(--eai-blue-500);
    opacity: 0.8;
}

/* Markbook CSV export button */
#export-markbook-csv {
    display: inline-flex;
    align-items: center;
    gap: var(--eai-space-2);
    margin: var(--eai-space-3) 0;
    padding: 9px 18px;
    font-size: 0.875rem;
    font-weight: 600;
    background: linear-gradient(135deg, #10b981 0%, #059669 100%);
    color: white;
    border: none;
    border-radius: var(--eai-radius-md);
    cursor: pointer;
    box-shadow: 0 2px 8px rgba(16,185,129,0.3);
    transition: transform var(--eai-transition), box-shadow var(--eai-transition);
}

#export-markbook-csv:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 14px rgba(16,185,129,0.4);
}

/* =============================================================
   MARKBOOK TASK REVIEW MODAL (eai-modal-mb)
   ============================================================= */

.eai-modal-mb {
    display: none;
    position: fixed;
    z-index: 9999;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background: rgba(15, 23, 42, 0.65);
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
    box-sizing: border-box;
    padding: 16px 0;
    overflow-y: auto;
}

.eai-modal-mb.active {
    display: flex;
    justify-content: center;
    align-items: flex-start;
}

.eai-modal-content-mb {
    margin-top: var(--eai-space-10);
    background: var(--eai-surface);
    padding: var(--eai-space-6);
    border: none;
    width: 84%;
    max-width: 1400px;
    border-radius: var(--eai-radius-xl);
    box-shadow: var(--eai-shadow-modal);
    max-height: calc(100vh - 80px);
    overflow-y: auto;
    position: relative;
    animation: eai-modal-in 0.22s cubic-bezier(0.34,1.56,0.64,1);
}

/* =============================================================
   ASSESSMENT REVIEW MODAL (split-pane) - modern premium design
   ============================================================= */

#assessment-review-modal {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 94%;
    max-width: 1500px;
    height: 90%;
    background: var(--eai-surface);
    border-radius: var(--eai-radius-xl);
    z-index: 9999;
    box-shadow: 0 32px 80px rgba(16, 33, 58, 0.22), 0 8px 24px rgba(16, 33, 58, 0.10);
    overflow: hidden;
    display: flex;
    flex-direction: column;
    animation: eai-modal-in 0.24s cubic-bezier(0.34, 1.56, 0.64, 1);
}

/* Header bar */
.arm-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    padding: 16px 22px;
    background: linear-gradient(135deg, var(--eai-brand-dark) 0%, #1a3358 100%);
    flex-shrink: 0;
}

.arm-header-left {
    display: flex;
    align-items: center;
    gap: 10px;
    min-width: 0;
}

.arm-header-icon {
    font-size: 1.25rem;
    flex-shrink: 0;
}

.arm-title {
    margin: 0;
    color: #fff;
    font-size: 1.05rem;
    font-weight: 700;
    letter-spacing: -0.01em;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.arm-close-btn {
    flex-shrink: 0;
    width: 34px;
    height: 34px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.12);
    border: 1px solid rgba(255, 255, 255, 0.18);
    border-radius: 50%;
    color: #fff;
    font-size: 18px;
    font-weight: 700;
    cursor: pointer;
    line-height: 1;
    transition: background 0.18s ease, transform 0.18s ease;
}

.arm-close-btn:hover {
    background: rgba(239, 68, 68, 0.75);
    transform: scale(1.08);
}

/* Two-pane body */
.csuk-modal-content {
    display: flex;
    flex-direction: row;
    width: 100%;
    flex: 1;
    min-height: 0;
    overflow: hidden;
}

/* Left sidebar */
#assessment-student-list {
    width: 280px;
    min-width: 230px;
    border-right: 1px solid var(--eai-brand-border);
    background: var(--eai-brand-bg);
    overflow-y: auto;
    flex-shrink: 0;
    display: flex;
    flex-direction: column;
}

.arm-sidebar-header {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    gap: 8px;
    padding: 16px 16px 10px;
    border-bottom: 1px solid var(--eai-brand-border);
    flex-shrink: 0;
}

.arm-sidebar-label {
    font-size: 0.78rem;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0.07em;
    color: var(--eai-brand-dark);
}

.arm-sidebar-hint {
    font-size: 0.72rem;
    color: var(--eai-brand-secondary);
    font-weight: 500;
}

.arm-student-list {
    flex: 1;
    overflow-y: auto;
    padding: 10px;
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.arm-student-card {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 8px;
    padding: 10px 12px;
    border-radius: 10px;
    border: 1.5px solid var(--eai-brand-border);
    background: #fff;
    cursor: pointer;
    transition: border-color 0.18s ease, box-shadow 0.18s ease, transform 0.12s ease;
    user-select: none;
}

.arm-student-card:hover {
    border-color: var(--eai-brand-primary);
    box-shadow: 0 4px 14px rgba(51, 156, 255, 0.12);
    transform: translateX(2px);
}

.arm-student-card.selected-student-score {
    border-color: var(--eai-brand-primary) !important;
    background: linear-gradient(135deg, rgba(51, 156, 255, 0.07), rgba(51, 156, 255, 0.03)) !important;
    box-shadow: 0 0 0 3px rgba(51, 156, 255, 0.18), 0 4px 14px rgba(51, 156, 255, 0.12) !important;
    transform: translateX(3px);
}

.arm-student-name {
    font-size: 0.855rem;
    font-weight: 600;
    color: var(--eai-brand-dark);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    flex: 1;
    min-width: 0;
}

.arm-score-pill {
    flex-shrink: 0;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 44px;
    padding: 3px 8px;
    border-radius: 999px;
    font-size: 0.76rem;
    font-weight: 700;
    line-height: 1.3;
}

.arm-score-pill.score-green  { background: var(--eai-score-green-bg);   color: var(--eai-score-green-text); }
.arm-score-pill.score-amber  { background: var(--eai-score-amber-bg);   color: var(--eai-score-amber-text); }
.arm-score-pill.score-red    { background: var(--eai-score-red-bg);     color: var(--eai-score-red-text); }
.arm-score-pill.score-unknown { background: var(--eai-score-unknown-bg); color: var(--eai-score-unknown-text); }

/* Right review pane */
#assessment-detail-panel {
    flex: 1;
    min-width: 0;
    overflow-y: auto;
    background: #fff;
}

#assessment-detail-content {
    padding: 28px 30px;
    width: 100%;
    box-sizing: border-box;
}

/* Empty / loading states */
.arm-empty-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 260px;
    gap: 14px;
    color: var(--eai-brand-secondary);
    text-align: center;
    padding: 32px;
}

.arm-empty-icon {
    font-size: 3rem;
    opacity: 0.45;
}

.arm-empty-state p {
    font-size: 0.95rem;
    max-width: 320px;
    line-height: 1.6;
    margin: 0;
}

.arm-loading {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 32px;
    color: var(--eai-brand-secondary);
    font-size: 0.9rem;
    min-height: 80px;
}

.arm-spinner {
    display: inline-block;
    width: 18px;
    height: 18px;
    border: 3px solid var(--eai-brand-border);
    border-top-color: var(--eai-brand-primary);
    border-radius: 50%;
    animation: eai-spin 0.8s linear infinite;
    flex-shrink: 0;
}

.arm-error {
    padding: 16px 20px;
    background: var(--eai-danger-bg);
    color: var(--eai-danger-text);
    border-left: 4px solid var(--eai-danger-border);
    border-radius: var(--eai-radius-md);
    font-size: 0.875rem;
}

/* Theory status card */
.arm-theory-card {
    display: flex;
    align-items: flex-start;
    gap: 18px;
    padding: 24px 28px;
    border-radius: 16px;
    margin-top: 8px;
}

.arm-theory-read {
    background: var(--eai-success-bg);
    border: 1.5px solid var(--eai-success-border);
}

.arm-theory-unread {
    background: var(--eai-danger-bg);
    border: 1.5px solid var(--eai-danger-border);
}

.arm-theory-icon {
    font-size: 2rem;
    flex-shrink: 0;
    line-height: 1;
}

.arm-theory-body h3 {
    margin: 0 0 8px;
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--eai-brand-dark);
}

.arm-theory-body p {
    margin: 0;
    font-size: 1rem;
    line-height: 1.55;
    color: var(--eai-brand-dark);
}

/* Modal overlay */
#modal-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(15, 23, 42, 0.55);
    backdrop-filter: blur(3px);
    -webkit-backdrop-filter: blur(3px);
    z-index: 999;
}

/* Student score cells */
.student-score {
    cursor: pointer;
    color: var(--eai-gray-800);
    transition: background var(--eai-transition);
    border-radius: var(--eai-radius-sm);
}

.selected-student-score {
    border: 2px solid var(--eai-blue-500) !important;
    box-shadow: 0 0 0 2px rgba(59,130,246,0.25);
}

/* Score cells colour */
.student-score.score-green  { background: var(--eai-score-green-bg); color: var(--eai-score-green-text); }
.student-score.score-amber  { background: var(--eai-score-amber-bg); color: var(--eai-score-amber-text); }
.student-score.score-red    { background: var(--eai-score-red-bg);   color: var(--eai-score-red-text); }
.student-score.score-unknown { background: var(--eai-score-unknown-bg); color: var(--eai-score-unknown-text); }

/* =============================================================
   ASSESSMENT / MCQ PREVIEW MODAL
   ============================================================= */

#csuk-assessment-modal {
    display: none;
    position: fixed;
    z-index: 9999;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    overflow: auto;
    background: rgba(15, 23, 42, 0.65);
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
}

.csuk-assessment-content {
    background: var(--eai-surface);
    margin: 4% auto;
    padding: var(--eai-space-6);
    border-radius: var(--eai-radius-xl);
    width: 92%;
    max-width: 1400px;
    max-height: 88vh;
    overflow-y: auto;
    box-shadow: var(--eai-shadow-modal);
    position: relative;
    animation: eai-modal-in 0.22s cubic-bezier(0.34,1.56,0.64,1);
}

.csuk-close-wrapper {
    position: sticky;
    top: 0;
    display: flex;
    justify-content: flex-end;
    z-index: 20;
    padding: 0;
    margin-bottom: -44px;
}

#csuk-assessment-loader {
    text-align: center;
    padding: var(--eai-space-8);
    color: var(--eai-gray-500);
    font-size: 0.95rem;
}

/* =============================================================
   QUESTION REVIEW CONTENT
   ============================================================= */

.question-content {
    margin-bottom: var(--eai-space-4);
    font-style: italic;
    color: var(--eai-gray-600);
    line-height: 1.6;
    font-size: 0.95rem;
}

.marking-block ul {
    padding-left: var(--eai-space-5);
}

.marking-block ul li {
    margin-bottom: var(--eai-space-2);
    font-size: 0.9rem;
    color: var(--eai-gray-700);
    line-height: 1.5;
}

.assessment-summary {
    margin-top: var(--eai-space-8);
    background: var(--eai-info-bg);
    padding: var(--eai-space-5);
    border-radius: var(--eai-radius-md);
    font-weight: 600;
    border-left: 4px solid var(--eai-info-border);
    color: var(--eai-info-text);
    font-size: 0.95rem;
}

.review-heading {
    margin-bottom: var(--eai-space-5);
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--eai-gray-800);
}

/* =============================================================
   GROUP MANAGEMENT — TEACHER ENROLMENT FORM
   ============================================================= */

.current-students-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.875rem;
    margin-top: var(--eai-space-3);
    border-radius: var(--eai-radius-md);
    overflow: hidden;
    box-shadow: var(--eai-shadow-sm);
}

.current-students-table th,
.current-students-table td {
    border-bottom: 1px solid var(--eai-gray-200);
    padding: 10px 14px;
    text-align: left;
}

.current-students-table th {
    background: var(--eai-gray-800);
    font-weight: 600;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--eai-gray-100);
    border-bottom: none;
}

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

.current-students-table tr:nth-child(even) {
    background-color: var(--eai-gray-50);
}

.current-students-table tr:hover {
    background-color: var(--eai-blue-50);
    transition: background-color var(--eai-transition);
}

.csuk-current-students {
    background: var(--eai-surface);
    border: 1px solid var(--eai-gray-200);
    border-radius: var(--eai-radius-lg);
    padding: var(--eai-space-5);
    margin-bottom: var(--eai-space-5);
    box-shadow: var(--eai-shadow-sm);
}

.csuk-current-students h4 {
    font-size: 0.875rem;
    font-weight: 700;
    color: var(--eai-gray-700);
    margin: 0 0 var(--eai-space-4);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

/* =============================================================
   ENROLMENT SUB-TABS
   ============================================================= */

.csuk-enrolment-subtabs {
    display: flex;
    margin-top: var(--eai-space-5);
    margin-bottom: var(--eai-space-5);
    gap: 0;
    border-bottom: 2px solid var(--eai-gray-200);
}

.csuk-subtab {
    padding: 10px 20px;
    cursor: pointer;
    border: 1.5px solid var(--eai-gray-200);
    border-bottom: none;
    background: var(--eai-gray-100);
    border-radius: var(--eai-radius-md) var(--eai-radius-md) 0 0;
    margin-right: 4px;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--eai-gray-600);
    transition: background var(--eai-transition), color var(--eai-transition);
    position: relative;
    bottom: -2px;
}

.csuk-subtab:hover {
    background: var(--eai-gray-200);
    color: var(--eai-gray-800);
}

.csuk-subtab.active {
    background: var(--eai-surface);
    border-top: 2.5px solid var(--eai-blue-500);
    font-weight: 700;
    color: var(--eai-blue-600);
    border-color: var(--eai-gray-200);
    border-bottom-color: var(--eai-surface);
}

.csuk-subtab-content {
    background: var(--eai-surface);
    padding: var(--eai-space-5);
    border: 1px solid var(--eai-gray-200);
    border-radius: 0 var(--eai-radius-md) var(--eai-radius-md) var(--eai-radius-md);
}

/* =============================================================
   MANUAL SIGNUP TABLE
   ============================================================= */

.manual-signup-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.875rem;
    border-radius: var(--eai-radius-md);
    overflow: hidden;
}

.manual-signup-table td,
.manual-signup-table th {
    border: 1px solid var(--eai-gray-200);
    padding: 8px 10px;
}

.manual-signup-table th {
    background: var(--eai-gray-100);
    font-weight: 600;
    color: var(--eai-gray-700);
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

.manual-signup-table input[type="text"],
.manual-signup-table input[type="email"],
.manual-signup-table input[type="password"] {
    width: 100%;
    padding: 7px 10px;
    border: 1.5px solid var(--eai-gray-300);
    border-radius: var(--eai-radius-sm);
    font-size: 0.85rem;
    background: var(--eai-gray-50);
    color: var(--eai-gray-800);
    box-sizing: border-box;
    transition: border-color var(--eai-transition);
}

.manual-signup-table input:focus {
    border-color: var(--eai-blue-500);
    outline: none;
    background: var(--eai-surface);
}

.submit_teacher_manual_signup {
    display: inline-flex;
    align-items: center;
    padding: 10px 24px;
    background: linear-gradient(135deg, var(--eai-blue-500) 0%, var(--eai-blue-600) 100%);
    color: #fff;
    border: none;
    border-radius: var(--eai-radius-md);
    font-size: 0.875rem;
    font-weight: 600;
    cursor: pointer;
    box-shadow: 0 2px 8px rgba(59,130,246,0.3);
    transition: transform var(--eai-transition), box-shadow var(--eai-transition);
}

.submit_teacher_manual_signup:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 14px rgba(59,130,246,0.4);
}

/* =============================================================
   EDIT STUDENTS TABLE
   ============================================================= */

.edit-students-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.875rem;
    margin-top: var(--eai-space-3);
    border-radius: var(--eai-radius-md);
    overflow: hidden;
}

.edit-students-table th,
.edit-students-table td {
    border-bottom: 1px solid var(--eai-gray-200);
    padding: 9px 12px;
    text-align: center;
    vertical-align: middle;
}

.edit-students-table th {
    background: var(--eai-gray-800);
    font-weight: 600;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--eai-gray-100);
    border-bottom: none;
}

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

.edit-students-table tr:nth-child(even) {
    background-color: var(--eai-gray-50);
}

.edit-students-table tr:hover {
    background-color: var(--eai-blue-50);
    transition: background-color var(--eai-transition);
}

.edit-students-table .with-divider {
    border-right: 3px solid var(--eai-gray-300);
}

.edit-students-table input[type="text"],
.edit-students-table input[type="email"],
.edit-students-table input[type="password"] {
    width: 100%;
    padding: 6px 10px;
    border: 1.5px solid var(--eai-gray-300);
    border-radius: var(--eai-radius-sm);
    font-size: 0.85rem;
    background: var(--eai-gray-50);
    color: var(--eai-gray-800);
    box-sizing: border-box;
    transition: border-color var(--eai-transition);
}

.edit-students-table input:focus {
    border-color: var(--eai-blue-500);
    outline: none;
    background: var(--eai-surface);
}

.edit-students-table select {
    padding: 5px 8px;
    border: 1.5px solid var(--eai-gray-300);
    border-radius: var(--eai-radius-sm);
    font-size: 0.8rem;
    background: var(--eai-gray-50);
    color: var(--eai-gray-700);
    cursor: pointer;
}

.edit-students-table button[type="submit"] {
    padding: 5px 12px;
    border: 1.5px solid var(--eai-gray-300);
    border-radius: var(--eai-radius-sm);
    font-size: 0.8rem;
    background: var(--eai-gray-100);
    color: var(--eai-gray-700);
    cursor: pointer;
    transition: background var(--eai-transition), border-color var(--eai-transition);
    margin: 2px;
}

.edit-students-table button[name="move_student"]:hover {
    background: var(--eai-blue-50);
    border-color: var(--eai-blue-400);
    color: var(--eai-blue-700);
}

.edit-students-table button[name="remove_student"]:hover {
    background: var(--eai-danger-bg);
    border-color: var(--eai-danger-border);
    color: var(--eai-danger-text);
}

.save_student_edits {
    display: inline-flex;
    align-items: center;
    padding: 10px 24px;
    background: linear-gradient(135deg, var(--eai-blue-500) 0%, var(--eai-blue-600) 100%);
    color: #fff;
    border: none;
    border-radius: var(--eai-radius-md);
    font-size: 0.875rem;
    font-weight: 600;
    cursor: pointer;
    box-shadow: 0 2px 8px rgba(59,130,246,0.3);
    transition: transform var(--eai-transition), box-shadow var(--eai-transition);
    margin-top: var(--eai-space-4);
}

.save_student_edits:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 14px rgba(59,130,246,0.4);
}

/* =============================================================
   GROUP MANAGEMENT TABS (csuk-group-tabs)
   ============================================================= */

.csuk-group-tabs {
    display: flex;
    gap: 4px;
    margin-bottom: 0;
    border-bottom: 2px solid var(--eai-gray-200);
    padding: 0;
    flex-wrap: wrap;
}

.csuk-tab {
    padding: 10px 18px;
    background: var(--eai-gray-100);
    border: 1.5px solid var(--eai-gray-200);
    border-bottom: none;
    border-radius: var(--eai-radius-md) var(--eai-radius-md) 0 0;
    cursor: pointer;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--eai-gray-600);
    transition: background var(--eai-transition), color var(--eai-transition);
    position: relative;
    bottom: -2px;
}

.csuk-tab:hover {
    background: var(--eai-gray-200);
    color: var(--eai-gray-800);
}

.csuk-tab.active {
    background: var(--eai-surface);
    border-top: 2.5px solid var(--eai-blue-500);
    font-weight: 700;
    color: var(--eai-blue-600);
    border-color: var(--eai-gray-200);
    border-bottom-color: var(--eai-surface);
}

.csuk-tab-content {
    background: var(--eai-surface);
    padding: var(--eai-space-6);
    border: 1px solid var(--eai-gray-200);
    border-radius: 0 var(--eai-radius-md) var(--eai-radius-md) var(--eai-radius-md);
    margin-top: 0;
}

/* =============================================================
   INTERNAL AI TOOL TABS (ai-tab-buttons)
   ============================================================= */

.ai-tab-buttons {
    display: flex;
    gap: 0;
    border-bottom: 2px solid var(--eai-gray-200);
    margin-left: 12px;
    margin-right: 12px;
    overflow-x: auto;
}

.ai-tab-btn {
    background: var(--eai-gray-100);
    border: 1.5px solid var(--eai-gray-200);
    border-bottom: none;
    padding: 10px 12px 8px;
    cursor: pointer;
    border-radius: var(--eai-radius-md) var(--eai-radius-md) 0 0;
    transition: background var(--eai-transition), color var(--eai-transition);
    flex: 1 1 auto;
    min-width: 90px;
    text-align: center;
    font-weight: 500;
    font-size: 0.8rem;
    color: var(--eai-gray-600);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
    position: relative;
    bottom: -2px;
    white-space: nowrap;
}

.ai-tab-btn img {
    width: 28px;
    height: 28px;
    object-fit: contain;
}

.ai-tab-btn.active {
    background: var(--eai-blue-50);
    border-top: 2.5px solid var(--eai-blue-500);
    color: var(--eai-blue-700);
    font-weight: 700;
    border-color: var(--eai-gray-200);
    border-bottom-color: var(--eai-blue-50);
}

.ai-tab-btn:hover {
    background: var(--eai-blue-50);
    color: var(--eai-blue-600);
}

/* =============================================================
   CLASSES DASHBOARD (eai-classes-dashboard)
   ============================================================= */

.eai-classes-dashboard {
    margin: 0 auto;
    font-family: var(--eai-font-family);
}

/* Tab Navigation */
.eai-classes-tabs {
    display: flex;
    gap: var(--eai-space-1);
    border-bottom: 2px solid var(--eai-blue-500);
    padding: var(--eai-space-4) var(--eai-space-3) 0;
    margin-bottom: 0;
    flex-wrap: wrap;
    background: var(--eai-gray-50);
    border-radius: var(--eai-radius-lg) var(--eai-radius-lg) 0 0;
}

.eai-tab-button {
    display: flex;
    align-items: center;
    gap: 7px;
    padding: 10px 18px;
    background: var(--eai-gray-200);
    border: none;
    border-radius: var(--eai-radius-md) var(--eai-radius-md) 0 0;
    cursor: pointer;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--eai-gray-600);
    transition: all var(--eai-transition-slow);
    position: relative;
    bottom: -2px;
    white-space: nowrap;
    flex-shrink: 0;
}

.eai-tab-button:hover {
    background: var(--eai-gray-300);
    color: var(--eai-gray-800);
}

.eai-tab-button.active {
    background: var(--eai-blue-600);
    color: #fff;
    border-bottom: 2px solid var(--eai-blue-600);
    font-weight: 600;
    box-shadow: 0 -2px 8px rgba(37,99,235,0.18);
}

.eai-tab-icon {
    width: 18px;
    height: 18px;
    object-fit: contain;
    opacity: 0.85;
}

.eai-tab-button.active .eai-tab-icon {
    opacity: 1;
    filter: brightness(0) invert(1);
}

/* Tab Content */
.eai-classes-content {
    background: var(--eai-surface);
    border-radius: 0 0 var(--eai-radius-lg) var(--eai-radius-lg);
    min-height: 500px;
    padding: var(--eai-space-6);
    border: 1px solid var(--eai-gray-200);
    border-top: none;
    box-shadow: var(--eai-shadow-md);
}

.eai-tab-panel {
    display: none;
    animation: eai-panel-in 0.25s ease;
}

.eai-tab-panel.active {
    display: block;
}

@keyframes eai-panel-in {
    from { opacity: 0; transform: translateY(8px); }
    to   { opacity: 1; transform: translateY(0); }
}

/* =============================================================
   CREATE GROUP TAB (inside classes dashboard)
   ============================================================= */

.create-group-container {
    max-width: 680px;
    margin: 0 auto;
    padding: var(--eai-space-8) var(--eai-space-6);
}

.create-group-header {
    text-align: center;
    margin-bottom: var(--eai-space-8);
}

.create-group-header h2 {
    color: var(--eai-gray-800);
    font-size: 1.75rem;
    font-weight: 700;
    margin-bottom: var(--eai-space-3);
    letter-spacing: -0.02em;
}

.create-group-header p {
    color: var(--eai-gray-500);
    font-size: 0.95rem;
    line-height: 1.65;
    max-width: 540px;
    margin: 0 auto;
}

.seat-limit-info {
    background: var(--eai-info-bg);
    border-left: 4px solid var(--eai-info-border);
    padding: 14px 18px;
    margin-bottom: var(--eai-space-6);
    border-radius: 0 var(--eai-radius-md) var(--eai-radius-md) 0;
    font-size: 0.9rem;
    color: var(--eai-info-text);
}

.eai-form {
    background: var(--eai-gray-50);
    border: 1.5px solid var(--eai-gray-200);
    border-radius: var(--eai-radius-lg);
    padding: var(--eai-space-8);
}

.form-field {
    margin-bottom: var(--eai-space-5);
}

.form-field label {
    display: block;
    font-weight: 600;
    color: var(--eai-gray-700);
    margin-bottom: var(--eai-space-2);
    font-size: 0.875rem;
}

.form-field input[type="text"],
.form-field input[type="number"] {
    width: 100%;
    padding: 11px 14px;
    border: 1.5px solid var(--eai-gray-300);
    border-radius: var(--eai-radius-md);
    font-size: 0.95rem;
    background: var(--eai-surface);
    color: var(--eai-gray-800);
    transition: border-color var(--eai-transition), box-shadow var(--eai-transition);
    box-sizing: border-box;
}

.form-field input[type="text"]:focus,
.form-field input[type="number"]:focus {
    border-color: var(--eai-blue-500);
    box-shadow: 0 0 0 3px rgba(59,130,246,0.12);
    outline: none;
}

.field-hint {
    display: block;
    color: var(--eai-gray-400);
    font-size: 0.8rem;
    margin-top: var(--eai-space-2);
    line-height: 1.4;
}

.form-actions {
    margin-top: var(--eai-space-8);
}

.eai-button-primary {
    background: linear-gradient(135deg, var(--eai-blue-500) 0%, var(--eai-blue-600) 100%);
    color: white;
    border: none;
    padding: 13px var(--eai-space-8);
    font-size: 1rem;
    font-weight: 600;
    border-radius: var(--eai-radius-md);
    cursor: pointer;
    transition: transform var(--eai-transition), box-shadow var(--eai-transition);
    box-shadow: 0 4px 14px rgba(59,130,246,0.30);
    letter-spacing: 0.01em;
    display: inline-flex;
    align-items: center;
}

.eai-button-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(59,130,246,0.40);
}

.eai-button-primary:disabled {
    background: var(--eai-gray-400);
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}

/* Status messages */
.eai-success {
    background: var(--eai-success-bg);
    color: var(--eai-success-text);
    padding: 14px 18px;
    border-radius: var(--eai-radius-md);
    border-left: 4px solid var(--eai-success-border);
    font-size: 0.9rem;
    font-weight: 500;
}

.eai-error {
    background: var(--eai-danger-bg);
    color: var(--eai-danger-text);
    padding: 14px 18px;
    border-radius: var(--eai-radius-md);
    border-left: 4px solid var(--eai-danger-border);
    font-size: 0.9rem;
    font-weight: 500;
}

/* Loading state */
.eai-group-loading {
    text-align: center;
    padding: var(--eai-space-12) var(--eai-space-5);
    color: var(--eai-gray-400);
    font-size: 1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--eai-space-3);
}

.eai-group-loading::after {
    content: '';
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid var(--eai-gray-200);
    border-top-color: var(--eai-blue-500);
    border-radius: 50%;
    animation: eai-spin 0.9s linear infinite;
    flex-shrink: 0;
}

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

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(8px); }
    to   { opacity: 1; transform: translateY(0); }
}

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

/* =============================================================
   SEAT CONTROL TAB
   ============================================================= */

.group-seats-container {
    background: var(--eai-surface);
    border: 1px solid var(--eai-gray-200);
    border-radius: var(--eai-radius-lg);
    padding: var(--eai-space-6);
    box-shadow: var(--eai-shadow-sm);
}

.group-seats-container h5 {
    font-size: 1rem;
    font-weight: 700;
    color: var(--eai-gray-800);
    margin: 0 0 var(--eai-space-3);
}

.group-seats-container p {
    color: var(--eai-gray-600);
    font-size: 0.9rem;
    line-height: 1.65;
    margin-bottom: var(--eai-space-5);
}

.seat-info {
    background: var(--eai-gray-50);
    border: 1px solid var(--eai-gray-200);
    border-radius: var(--eai-radius-md);
    padding: var(--eai-space-4) var(--eai-space-5);
    display: flex;
    flex-direction: column;
    gap: var(--eai-space-2);
}

.seat-info p {
    margin: 0;
    font-size: 0.9rem;
    color: var(--eai-gray-700);
    font-weight: 500;
}

.seat-quota {
    display: inline-flex;
    align-items: center;
    gap: var(--eai-space-1);
    font-weight: 700;
    color: var(--eai-blue-600);
    cursor: pointer;
    border-bottom: 1.5px dashed var(--eai-blue-400);
    padding: 1px 3px;
    border-radius: 2px;
    transition: background var(--eai-transition);
}

.seat-quota:hover {
    background: var(--eai-blue-50);
}

/* =============================================================
   DELETE GROUP TAB
   ============================================================= */

.csuk-tab-content form[onsubmit] {
    background: var(--eai-danger-bg);
    border: 1.5px solid var(--eai-danger-border);
    border-radius: var(--eai-radius-md);
    padding: var(--eai-space-5);
}

.csuk-tab-content form[onsubmit] p {
    color: var(--eai-danger-text);
    font-size: 0.9rem;
    line-height: 1.6;
    margin-bottom: var(--eai-space-4);
}

input.danger,
button.danger,
.csuk-tab-content form[onsubmit] input[type="submit"] {
    background: var(--eai-danger-border);
    color: #fff;
    border: none;
    padding: 10px 22px;
    border-radius: var(--eai-radius-md);
    font-size: 0.875rem;
    font-weight: 600;
    cursor: pointer;
    transition: background var(--eai-transition), transform var(--eai-transition);
}

input.danger:hover,
button.danger:hover,
.csuk-tab-content form[onsubmit] input[type="submit"]:hover {
    background: #dc2626;
    transform: translateY(-1px);
}

/* Warning / error messages */
.csuk-warning {
    background: var(--eai-danger-bg);
    color: var(--eai-danger-text);
    border-left: 4px solid var(--eai-danger-border);
    padding: var(--eai-space-3) var(--eai-space-4);
    border-radius: var(--eai-radius-md);
    font-size: 0.875rem;
    margin-bottom: var(--eai-space-4);
}

.csuk-membership-warning {
    background: var(--eai-warning-bg);
    color: var(--eai-warning-text);
    border-left: 4px solid var(--eai-warning-border);
    padding: var(--eai-space-4) var(--eai-space-5);
    border-radius: var(--eai-radius-md);
    font-size: 0.9rem;
    font-weight: 500;
    margin: var(--eai-space-6) 0;
}

/* =============================================================
   RESPONSIVE LAYOUT
   ============================================================= */

@media (max-width: 900px) {
    .csuk-modal-content {
        flex-direction: column;
    }

    #assessment-student-list {
        width: 100%;
        min-width: unset;
        border-right: none;
        border-bottom: 1px solid var(--eai-brand-border);
        max-height: 240px;
    }

    .arm-student-list {
        flex-direction: row;
        flex-wrap: wrap;
        padding: 8px;
        gap: 6px;
    }

    .arm-student-card {
        min-width: 160px;
        flex: 1;
    }

    #assessment-detail-panel {
        width: 100%;
    }
}

@media (max-width: 800px) {
    .dashboard-buttons {
        grid-template-columns: repeat(auto-fit, minmax(100px, 1fr));
        gap: var(--eai-space-3);
    }

    .dashboard-button {
        min-height: 90px;
        padding: var(--eai-space-3);
    }

    .dashboard-button img {
        width: 34px !important;
        height: 34px !important;
    }

    .dashboard-button span {
        font-size: 0.75rem !important;
    }

    .csuk-insight-card {
        padding: var(--eai-space-4) !important;
    }

    .csuk-stat-line {
        flex-direction: row;
        justify-content: space-between;
    }

    .csuk-circle,
    .average_score_sc {
        font-size: 0.75rem !important;
        padding: 3px 8px !important;
    }

    .dashboard-table-wrapper {
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
    }

    .dashboard-table {
        min-width: 640px;
        font-size: 0.8rem;
    }

    .eai-classes-tabs {
        overflow-x: auto;
        flex-wrap: nowrap;
        -webkit-overflow-scrolling: touch;
    }

    .eai-tab-button {
        padding: 9px 14px;
        font-size: 0.8rem;
    }

    .csuk-insights-cards {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 600px) {
    .class-dashboard {
        padding: var(--eai-space-4) var(--eai-space-3);
    }

    .class-dashboard h2 {
        font-size: 1.25rem;
    }

    .dashboard-modal {
        width: calc(100vw - 16px);
        height: calc(100vh - 16px);
        border-radius: var(--eai-radius-lg);
        padding: var(--eai-space-4);
    }

    .eai-modal-content-mb {
        width: 96%;
        padding: var(--eai-space-4);
    }

    .csuk-assessment-content {
        width: 96%;
        margin: 2% auto;
        padding: var(--eai-space-4);
    }

    .csuk-insights-cards {
        grid-template-columns: 1fr 1fr;
        gap: var(--eai-space-3);
    }

    .eai-classes-content {
        padding: var(--eai-space-4);
    }

    .create-group-container {
        padding: var(--eai-space-4);
    }

    .eai-form {
        padding: var(--eai-space-5);
    }

    #assessment-review-modal {
        width: 100%;
        height: 100%;
        border-radius: 0;
        top: 0;
        left: 0;
        transform: none;
    }

    .arm-header {
        padding: 12px 16px;
    }

    #assessment-detail-content {
        padding: 16px;
    }
}

/* =============================================================
   PREMIUM CLASSROOM DASHBOARD REFRESH
   Scoped late in the file to win against theme and plugin drift.
   ============================================================= */

:root {
    --eai-brand-primary: #339cff;
    --eai-brand-primary-hover: #2288f5;
    --eai-brand-dark: #10213A;
    --eai-brand-secondary: #5B6B84;
    --eai-brand-border: #E8EEF6;
    --eai-brand-bg: #F7FAFD;
    --eai-brand-card: #FFFFFF;
    --eai-brand-success: #2CB67D;
    --eai-brand-warning: #FFB84D;
    --eai-brand-purple: #8B5CF6;
    --eai-brand-indigo: #4F46E5;
    --eai-premium-shadow: 0 14px 40px rgba(16, 33, 58, 0.08);
    --eai-premium-shadow-sm: 0 6px 20px rgba(16, 33, 58, 0.06);
    --eai-premium-radius: 20px;
}

.eai-classes-dashboard,
.class-dashboard {
    width: 100% !important;
    max-width: none !important;
    margin: 0 auto !important;
    color: var(--eai-brand-dark) !important;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif !important;
    letter-spacing: 0 !important;
    box-sizing: border-box !important;
}

.eai-classes-dashboard *,
.eai-classes-dashboard *::before,
.eai-classes-dashboard *::after,
.class-dashboard *,
.class-dashboard *::before,
.class-dashboard *::after {
    box-sizing: border-box !important;
}

.eai-classes-dashboard {
    background: var(--eai-brand-bg) !important;
    border: 1px solid var(--eai-brand-border) !important;
    border-radius: 24px !important;
    padding: 18px !important;
    box-shadow: 0 18px 60px rgba(16, 33, 58, 0.07) !important;
}

.eai-classes-tabs {
    display: flex !important;
    gap: 8px !important;
    align-items: center !important;
    border: 0 !important;
    padding: 4px 4px 14px !important;
    margin: 0 !important;
    background: transparent !important;
    border-radius: 0 !important;
    overflow-x: auto !important;
    scrollbar-width: thin !important;
}

.eai-tab-button {
    min-height: 42px !important;
    display: inline-flex !important;
    align-items: center !important;
    gap: 8px !important;
    padding: 9px 14px !important;
    background: #fff !important;
    color: var(--eai-brand-secondary) !important;
    border: 1px solid var(--eai-brand-border) !important;
    border-radius: 999px !important;
    box-shadow: none !important;
    font-size: 0.875rem !important;
    font-weight: 700 !important;
    line-height: 1.2 !important;
    white-space: nowrap !important;
    transition: background 0.18s ease, border-color 0.18s ease, color 0.18s ease, transform 0.18s ease !important;
}

.eai-tab-button:hover {
    background: #eef6ff !important;
    border-color: #c2ddff !important;
    color: #1a6bbf !important;
    transform: translateY(-1px) !important;
}

.eai-tab-button.active {
    background: var(--eai-brand-dark) !important;
    border-color: var(--eai-brand-dark) !important;
    color: #fff !important;
    box-shadow: 0 8px 24px rgba(16, 33, 58, 0.16) !important;
}

.eai-tab-icon {
    width: 18px !important;
    height: 18px !important;
    flex: 0 0 18px !important;
}

.eai-classes-content {
    min-height: 560px !important;
    padding: 0 !important;
    background: transparent !important;
    border: 0 !important;
    border-radius: 0 !important;
    box-shadow: none !important;
}

.class-dashboard {
    background: transparent !important;
    padding: 0 !important;
    border-radius: 0 !important;
}

.eai-dashboard-hero {
    display: grid !important;
    grid-template-columns: minmax(0, 1fr) auto !important;
    gap: 24px !important;
    align-items: stretch !important;
    margin-bottom: 22px !important;
    padding: 28px !important;
    border: 1px solid var(--eai-brand-border) !important;
    border-radius: 24px !important;
    background:
        linear-gradient(135deg, rgba(51, 156, 255, 0.10), rgba(139, 92, 246, 0.05)),
        #fff !important;
    box-shadow: var(--eai-premium-shadow-sm) !important;
}

.eai-dashboard-hero--student {
    margin-top: 18px !important;
}

.eai-dashboard-hero-copy {
    min-width: 0 !important;
}

.eai-dashboard-eyebrow {
    display: inline-flex !important;
    width: fit-content !important;
    align-items: center !important;
    margin: 0 0 12px !important;
    padding: 5px 13px !important;
    border: 1px solid rgba(51, 156, 255, 0.22) !important;
    border-radius: 999px !important;
    background: rgba(51, 156, 255, 0.10) !important;
    color: var(--eai-brand-primary) !important;
    font-size: 0.72rem !important;
    font-weight: 800 !important;
    letter-spacing: 0.08em !important;
    line-height: 1.2 !important;
    text-transform: uppercase !important;
}

.class-dashboard .eai-dashboard-hero h2,
.student-dashboard .eai-dashboard-hero h2 {
    margin: 0 !important;
    color: var(--eai-brand-dark) !important;
    font-size: clamp(1.7rem, 2.4vw, 2.35rem) !important;
    font-weight: 750 !important;
    line-height: 1.12 !important;
    letter-spacing: 0 !important;
}

.eai-dashboard-hero p {
    max-width: 620px !important;
    margin: 10px 0 0 !important;
    color: var(--eai-brand-secondary) !important;
    font-size: 1rem !important;
    line-height: 1.65 !important;
}

.eai-dashboard-stats {
    display: grid !important;
    grid-template-columns: repeat(3, minmax(108px, 1fr)) !important;
    gap: 10px !important;
    min-width: min(430px, 100%) !important;
}

.eai-dashboard-stat {
    display: flex !important;
    min-height: 104px !important;
    flex-direction: column !important;
    justify-content: center !important;
    padding: 16px !important;
    border: 1px solid var(--eai-brand-border) !important;
    border-radius: 18px !important;
    background: rgba(255, 255, 255, 0.82) !important;
}

.eai-dashboard-stat span {
    color: var(--eai-brand-dark) !important;
    font-size: 1.75rem !important;
    font-weight: 800 !important;
    line-height: 1 !important;
}

.eai-dashboard-stat small {
    margin-top: 8px !important;
    color: var(--eai-brand-secondary) !important;
    font-size: 0.78rem !important;
    font-weight: 750 !important;
    letter-spacing: 0.06em !important;
    line-height: 1.25 !important;
    text-transform: uppercase !important;
}

.eai-section-heading,
.class-dashboard h3,
.student-performance-insights h3 {
    display: flex !important;
    align-items: flex-end !important;
    justify-content: space-between !important;
    gap: 14px !important;
    margin: 24px 0 14px !important;
    color: var(--eai-brand-dark) !important;
    font-size: 1.06rem !important;
    font-weight: 800 !important;
    letter-spacing: 0 !important;
}

.eai-section-heading span {
    color: var(--eai-brand-dark) !important;
    font-size: 1.06rem !important;
    font-weight: 800 !important;
}

.eai-section-heading small {
    color: var(--eai-brand-secondary) !important;
    font-size: 0.84rem !important;
    font-weight: 600 !important;
    line-height: 1.4 !important;
}

.eai-section-heading--toolbar {
    align-items: center !important;
    margin-top: 22px !important;
}

.eai-dashboard-toolbar {
    display: flex !important;
    flex-wrap: wrap !important;
    justify-content: flex-end !important;
    gap: 8px !important;
    min-width: 0 !important;
}

.eai-dashboard-menu {
    position: relative !important;
    z-index: 20 !important;
}

.eai-dashboard-menu summary {
    min-height: 38px !important;
    display: inline-flex !important;
    align-items: center !important;
    gap: 8px !important;
    padding: 8px 13px !important;
    border: 1px solid var(--eai-brand-border) !important;
    border-radius: 999px !important;
    background: #fff !important;
    color: var(--eai-brand-dark) !important;
    box-shadow: 0 4px 16px rgba(16, 33, 58, 0.05) !important;
    cursor: pointer !important;
    font-size: 0.84rem !important;
    font-weight: 800 !important;
    line-height: 1.2 !important;
    list-style: none !important;
    user-select: none !important;
    transition: background 0.18s ease, border-color 0.18s ease, color 0.18s ease !important;
}

.eai-dashboard-menu summary::-webkit-details-marker {
    display: none !important;
}

.eai-dashboard-menu[open] summary {
    border-color: #c2ddff !important;
    background: #eef6ff !important;
    color: #1a6bbf !important;
}

.eai-dashboard-menu-panel {
    position: absolute !important;
    top: calc(100% + 8px) !important;
    right: 0 !important;
    min-width: 210px !important;
    padding: 6px !important;
    border: 1px solid var(--eai-brand-border) !important;
    border-radius: 14px !important;
    background: #fff !important;
    box-shadow: 0 18px 46px rgba(16, 33, 58, 0.14) !important;
}

.eai-dashboard-menu-item {
    width: 100% !important;
    min-height: 38px !important;
    display: flex !important;
    align-items: center !important;
    justify-content: flex-start !important;
    padding: 9px 11px !important;
    border: 0 !important;
    border-radius: 10px !important;
    background: transparent !important;
    color: var(--eai-brand-dark) !important;
    box-shadow: none !important;
    cursor: pointer !important;
    font-family: inherit !important;
    font-size: 0.86rem !important;
    font-weight: 700 !important;
    line-height: 1.25 !important;
    text-align: left !important;
    text-decoration: none !important;
    transition: background 0.16s ease, color 0.16s ease !important;
}

.eai-dashboard-menu-item:hover,
.eai-dashboard-menu-item:focus {
    background: #f4f9ff !important;
    color: #1a6bbf !important;
    outline: 0 !important;
}

.class-dashboard h3::before,
.student-performance-insights h3::before {
    content: none !important;
}

.dashboard-buttons {
    display: grid !important;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)) !important;
    gap: 14px !important;
    max-width: none !important;
    margin: 0 0 26px !important;
}

.dashboard-button {
    position: relative !important;
    min-height: 128px !important;
    display: flex !important;
    flex-direction: column !important;
    align-items: flex-start !important;
    justify-content: space-between !important;
    gap: 14px !important;
    padding: 18px !important;
    overflow: hidden !important;
    border: 1px solid var(--eai-brand-border) !important;
    border-radius: 18px !important;
    background: #fff !important;
    box-shadow: 0 4px 18px rgba(16, 33, 58, 0.055) !important;
    cursor: pointer !important;
    text-align: left !important;
    transition: transform 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease, background 0.2s ease !important;
}

.dashboard-button::after {
    content: "" !important;
    position: absolute !important;
    inset: auto 14px 14px auto !important;
    width: 34px !important;
    height: 34px !important;
    border-radius: 50% !important;
    background: rgba(51, 156, 255, 0.08) !important;
    pointer-events: none !important;
}

.dashboard-button:hover {
    transform: translateY(-3px) !important;
    border-color: #c2ddff !important;
    background: #fbfdff !important;
    box-shadow: var(--eai-premium-shadow) !important;
}

.dashboard-button img {
    width: 42px !important;
    height: 42px !important;
    margin: 0 !important;
    padding: 8px !important;
    object-fit: contain !important;
    border-radius: 14px !important;
    background: #eef6ff !important;
    border: 1px solid #d9ebff !important;
    transition: transform 0.2s ease !important;
}

.dashboard-button:hover img {
    transform: scale(1.04) !important;
}

.dashboard-button span {
    max-width: 100% !important;
    color: var(--eai-brand-dark) !important;
    font-size: 0.92rem !important;
    font-weight: 750 !important;
    line-height: 1.25 !important;
    text-align: left !important;
}

.dashboard-table-wrapper,
.student-dashboard-wrapper,
.current-students-table,
.edit-students-table,
.eai_markbook_table {
    border: 1px solid var(--eai-brand-border) !important;
    border-radius: 18px !important;
    background: #fff !important;
    box-shadow: 0 8px 28px rgba(16, 33, 58, 0.06) !important;
    overflow: auto !important;
}

.dashboard-table,
.student-dashboard-table {
    width: 100% !important;
    margin: 0 !important;
    border-collapse: separate !important;
    border-spacing: 0 !important;
    table-layout: auto !important;
    background: #fff !important;
    color: var(--eai-brand-dark) !important;
    font-size: 0.89rem !important;
}

.dashboard-table th,
.student-dashboard-table th {
    padding: 13px 16px !important;
    border: 0 !important;
    border-bottom: 1px solid var(--eai-brand-border) !important;
    background: #fbfdff !important;
    color: var(--eai-brand-secondary) !important;
    font-size: 0.72rem !important;
    font-weight: 800 !important;
    letter-spacing: 0.08em !important;
    line-height: 1.35 !important;
    text-transform: uppercase !important;
    white-space: nowrap !important;
}

.dashboard-table td,
.student-dashboard-table td {
    padding: 15px 16px !important;
    border: 0 !important;
    border-bottom: 1px solid #eef3f9 !important;
    color: var(--eai-brand-dark) !important;
    line-height: 1.5 !important;
    vertical-align: middle !important;
}

.dashboard-table tbody tr:last-child td,
.student-dashboard-table tbody tr:last-child td {
    border-bottom: 0 !important;
}

.dashboard-table tbody tr:hover,
.student-dashboard-table tbody tr:hover {
    background: #f7fbff !important;
}

.csuk-open-assessment-modal {
    color: #1a6bbf !important;
    font-weight: 750 !important;
    text-decoration: none !important;
    border-bottom: 1px solid rgba(51, 156, 255, 0.24) !important;
}

.csuk-open-assessment-modal:hover {
    color: var(--eai-brand-primary-hover) !important;
    border-bottom-color: currentColor !important;
    text-decoration: none !important;
}

.eai-task-type,
.eai-status-pill,
.avg-score,
.student-dash-score,
.average_score_sc,
.csuk-circle {
    display: inline-flex !important;
    min-height: 28px !important;
    align-items: center !important;
    justify-content: center !important;
    gap: 6px !important;
    padding: 5px 10px !important;
    border-radius: 999px !important;
    border: 1px solid transparent !important;
    font-size: 0.76rem !important;
    font-weight: 800 !important;
    line-height: 1.15 !important;
    white-space: nowrap !important;
}

.eai-task-type--mcq {
    background: #eef6ff !important;
    border-color: #c2ddff !important;
    color: #1a6bbf !important;
}

.eai-task-type--exam,
.eai-task-type--essay {
    background: #f3f0ff !important;
    border-color: #d6ccff !important;
    color: #5b2db5 !important;
}

.eai-task-type--theory {
    background: #edfaf4 !important;
    border-color: #b7edd9 !important;
    color: #1a7a54 !important;
}

.eai-task-type--course_page {
    background: #f3f0ff !important;
    border-color: #d6ccff !important;
    color: #5b2db5 !important;
}

.eai-status-pill--active,
.score-green,
.avg-score.score-green,
.student-dash-score.score-green,
.average_score_sc.score-green {
    background: #edfaf4 !important;
    border-color: #b7edd9 !important;
    color: #1a7a54 !important;
}

.eai-status-pill--scheduled,
.score-amber,
.avg-score.score-amber,
.student-dash-score.score-amber,
.average_score_sc.score-amber {
    background: #fff7e8 !important;
    border-color: #ffd899 !important;
    color: #9a5b00 !important;
}

.eai-status-pill--expired,
.score-red,
.avg-score.score-red,
.student-dash-score.score-red,
.average_score_sc.score-red {
    background: #fff0f0 !important;
    border-color: #ffc9c9 !important;
    color: #a92828 !important;
}

.score-unknown,
.avg-score.score-unknown,
.student-dash-score.score-unknown,
.average_score_sc.score-unknown,
.csuk-insight-assigned {
    background: #f5f8fb !important;
    border-color: var(--eai-brand-border) !important;
    color: var(--eai-brand-secondary) !important;
}

.csuk-insights-cards {
    display: grid !important;
    grid-template-columns: repeat(auto-fit, minmax(210px, 1fr)) !important;
    gap: 14px !important;
    margin: 0 0 26px !important;
}

.csuk-insight-card {
    min-width: 0 !important;
    padding: 18px !important;
    border: 1px solid var(--eai-brand-border) !important;
    border-radius: 18px !important;
    background: #fff !important;
    box-shadow: 0 4px 18px rgba(16, 33, 58, 0.05) !important;
    transition: transform 0.2s ease, box-shadow 0.2s ease !important;
}

.csuk-insight-card:hover {
    transform: translateY(-2px) !important;
    box-shadow: var(--eai-premium-shadow-sm) !important;
}

.csuk-card-inner {
    gap: 13px !important;
}

.csuk-insight-card h4,
.csuk-card-inner h4 {
    margin: 0 !important;
    color: var(--eai-brand-dark) !important;
    font-size: 0.88rem !important;
    font-weight: 800 !important;
    letter-spacing: 0 !important;
    text-transform: none !important;
}

.csuk-stat-label {
    color: var(--eai-brand-secondary) !important;
    font-size: 0.82rem !important;
    font-weight: 650 !important;
}

.create-group-container {
    max-width: 760px !important;
    padding: 42px 20px !important;
}

.create-group-header h2 {
    color: var(--eai-brand-dark) !important;
    font-size: clamp(1.55rem, 2.4vw, 2.1rem) !important;
}

.create-group-header p {
    color: var(--eai-brand-secondary) !important;
}

#create-group-form,
.eai-form {
    max-width: 680px !important;
    padding: 24px !important;
    border: 1px solid var(--eai-brand-border) !important;
    border-radius: 20px !important;
    background: #fff !important;
    box-shadow: var(--eai-premium-shadow-sm) !important;
}

#create-group-form input[type="text"],
#create-group-form input[type="number"],
.form-field input[type="text"],
.form-field input[type="number"],
.edit-students-table input,
.edit-students-table select {
    min-height: 44px !important;
    border: 1px solid #d9e4f2 !important;
    border-radius: 12px !important;
    background: #fbfdff !important;
    color: var(--eai-brand-dark) !important;
    box-shadow: none !important;
}

#create-group-form input:focus,
.form-field input:focus,
.edit-students-table input:focus,
.edit-students-table select:focus {
    border-color: var(--eai-brand-primary) !important;
    box-shadow: 0 0 0 4px rgba(51, 156, 255, 0.13) !important;
    outline: 0 !important;
}

#create-group-form input[type="submit"],
.eai-button-primary,
#export-markbook-csv,
.submit_teacher_manual_signup,
.save_student_edits {
    min-height: 42px !important;
    border: 0 !important;
    border-radius: 999px !important;
    background: var(--eai-brand-primary) !important;
    color: #fff !important;
    box-shadow: 0 8px 22px rgba(51, 156, 255, 0.22) !important;
    font-weight: 800 !important;
}

#create-group-form input[type="submit"]:hover,
.eai-button-primary:hover,
#export-markbook-csv:hover,
.submit_teacher_manual_signup:hover,
.save_student_edits:hover {
    background: var(--eai-brand-primary-hover) !important;
    transform: translateY(-1px) !important;
}

.dashboard-modal,
.eai-modal-content-mb,
.csuk-assessment-content {
    border: 1px solid rgba(232, 238, 246, 0.9) !important;
    border-radius: 22px !important;
    background: #fff !important;
    box-shadow: 0 30px 80px rgba(16, 33, 58, 0.22) !important;
}

#assessment-review-modal {
    border-radius: var(--eai-radius-xl) !important;
    box-shadow: 0 32px 80px rgba(16, 33, 58, 0.22), 0 8px 24px rgba(16, 33, 58, 0.10) !important;
}

.dashboard-modal-wrapper,
.eai-modal-mb,
#csuk-assessment-modal,
#modal-overlay {
    background: rgba(16, 33, 58, 0.56) !important;
}

.dashboard-modal-close,
.eai-modal-close-mb,
.csuk-modal-close,
#csuk-modal-close {
    background: var(--eai-brand-dark) !important;
    color: #fff !important;
    box-shadow: 0 8px 24px rgba(16, 33, 58, 0.16) !important;
}

.eai-empty-table-cell,
.empty-class-message {
    padding: 34px !important;
    color: var(--eai-brand-secondary) !important;
    text-align: center !important;
    font-weight: 650 !important;
}

.eai-course-deadline-modal label {
    display: block !important;
    margin: 14px 0 7px !important;
    color: var(--eai-brand-dark) !important;
    font-size: 0.84rem !important;
    font-weight: 800 !important;
}

.eai-course-deadline-modal select,
.eai-course-deadline-modal input[type="datetime-local"] {
    width: 100% !important;
    min-height: 44px !important;
    padding: 10px 12px !important;
    border: 1px solid #d9e4f2 !important;
    border-radius: 12px !important;
    background: #fbfdff !important;
    color: var(--eai-brand-dark) !important;
    font: inherit !important;
}

.eai-course-deadline-current {
    margin-top: 24px !important;
    padding-top: 18px !important;
    border-top: 1px solid var(--eai-brand-border) !important;
}

.eai-course-deadline-current h4 {
    margin: 0 0 10px !important;
    color: var(--eai-brand-dark) !important;
    font-size: 0.95rem !important;
    font-weight: 800 !important;
}

.eai-course-deadline-current table {
    width: 100% !important;
    border-collapse: collapse !important;
    font-size: 0.86rem !important;
}

.eai-course-deadline-current th,
.eai-course-deadline-current td {
    padding: 10px 8px !important;
    border-bottom: 1px solid #eef3f9 !important;
    text-align: left !important;
}

.eai-course-page-review-summary {
    margin: 0 0 18px !important;
    padding: 16px !important;
    border: 1px solid var(--eai-brand-border) !important;
    border-radius: 14px !important;
    background: #fbfdff !important;
}

.eai-course-page-review-summary p {
    margin: 0 0 8px !important;
}

.eai-course-page-review-summary p:last-child {
    margin-bottom: 0 !important;
}

@media (max-width: 900px) {
    .eai-dashboard-hero {
        grid-template-columns: 1fr !important;
        padding: 22px !important;
    }

    .eai-dashboard-stats {
        grid-template-columns: repeat(3, 1fr) !important;
        min-width: 0 !important;
    }
}

@media (max-width: 700px) {
    .eai-classes-dashboard {
        padding: 12px !important;
        border-radius: 18px !important;
    }

    .eai-dashboard-stats {
        grid-template-columns: 1fr !important;
    }

    .dashboard-buttons,
    .csuk-insights-cards {
        grid-template-columns: 1fr !important;
    }

    .dashboard-button {
        min-height: 104px !important;
    }

    .dashboard-table,
    .student-dashboard-table {
        min-width: 760px !important;
    }

    .eai-section-heading {
        align-items: flex-start !important;
        flex-direction: column !important;
    }

    .eai-section-heading--toolbar {
        align-items: stretch !important;
    }

    .eai-dashboard-toolbar {
        width: 100% !important;
        justify-content: flex-start !important;
    }

    .eai-dashboard-menu-panel {
        left: 0 !important;
        right: auto !important;
    }
}

/* =====================================================
   CTM WIZARD - Task Creation Modals (Quiz / Exam / Essay)
   ===================================================== */

.ctm-wizard-wrap {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    color: #1a1a2e;
    width: 100%;
    box-sizing: border-box;
}

/* Header */
.ctm-wizard-header {
    display: flex;
    align-items: center;
    gap: 16px;
    background: linear-gradient(135deg, #2563eb 0%, #60a5fa 100%);
    color: #fff;
    border-radius: 14px;
    padding: 20px 24px;
    margin-bottom: 24px;
}
.ctm-wizard-header-icon {
    font-size: 32px;
    line-height: 1;
}
.ctm-wizard-title {
    margin: 0 0 4px;
    font-size: 20px;
    font-weight: 700;
    color: #fff;
}
.ctm-wizard-subtitle {
    margin: 0;
    font-size: 13px;
    opacity: 0.88;
}

/* Section cards */
.ctm-section {
    background: #fff;
    border: 1px solid #e8e8f0;
    border-radius: 12px;
    padding: 20px 22px;
    margin-bottom: 20px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.04);
}

.ctm-section-label {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 13px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: #666;
    margin-bottom: 16px;
}
.ctm-section-label-sub {
    font-size: 11px;
    margin-top: 18px;
}

.ctm-step-badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 24px;
    height: 24px;
    border-radius: 50%;
    background: #2563eb;
    color: #fff;
    font-size: 12px;
    font-weight: 800;
    flex-shrink: 0;
}
.ctm-step-badge-sm {
    width: 18px;
    height: 18px;
    font-size: 10px;
}

/* Type toggle (Exam / Essay) */
.ctm-type-toggle {
    display: flex;
    gap: 10px;
    margin-bottom: 20px;
}
.ctm-type-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 20px;
    border: 2px solid #e0e0ea;
    border-radius: 30px;
    background: #f8f8fc;
    color: #555;
    font-size: 13px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
}
.ctm-type-btn:hover {
    border-color: #2563eb;
    color: #2563eb;
}
.ctm-type-btn.active {
    background: #2563eb;
    border-color: #2563eb;
    color: #fff;
}

/* Source tab bar */
.ctm-tab-bar {
    display: flex;
    gap: 6px;
    flex-wrap: wrap;
    margin-bottom: 16px;
    border-bottom: 2px solid #f0f0f8;
    padding-bottom: 10px;
}
.ctm-tab-btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 7px 14px;
    border: 1px solid #e0e0ea;
    border-radius: 8px;
    background: #f8f8fc;
    color: #666;
    font-size: 12px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.18s;
}
.ctm-tab-btn:hover {
    background: #eff6ff;
    border-color: #2563eb;
    color: #2563eb;
}
.ctm-tab-btn.active {
    background: #2563eb;
    border-color: #2563eb;
    color: #fff;
}

/* Tab content */
.ctm-tab-content { display: none; }
.ctm-tab-content.active { display: block; }

/* Form controls */
.ctm-label {
    display: block;
    font-size: 12px;
    font-weight: 600;
    color: #555;
    margin-bottom: 6px;
    margin-top: 12px;
}
.ctm-label:first-child { margin-top: 0; }

.ctm-input,
.ctm-textarea {
    width: 100%;
    padding: 9px 12px;
    border: 1.5px solid #dde0f0;
    border-radius: 8px;
    font-size: 13px;
    color: #1a1a2e;
    background: #fafafe;
    box-sizing: border-box;
    transition: border-color 0.18s;
}
.ctm-input:focus,
.ctm-textarea:focus {
    outline: none;
    border-color: #2563eb;
    background: #fff;
}
.ctm-textarea { resize: vertical; min-height: 80px; }

/* Row: side-by-side field + button */
.ctm-row {
    display: flex;
    align-items: flex-end;
    gap: 12px;
    margin-top: 12px;
}
.ctm-field { flex: 1; }

/* Generate button */
.ctm-btn-generate {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    padding: 10px 20px;
    background: linear-gradient(135deg, #2563eb, #1d4ed8);
    color: #fff;
    border: none;
    border-radius: 8px;
    font-size: 13px;
    font-weight: 700;
    cursor: pointer;
    white-space: nowrap;
    transition: opacity 0.18s, transform 0.12s;
    flex-shrink: 0;
}
.ctm-btn-generate:hover { opacity: 0.9; transform: translateY(-1px); }
.ctm-btn-generate:active { transform: translateY(0); }

/* Primary button */
.ctm-btn-primary {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    padding: 10px 22px;
    background: #2563eb;
    color: #fff;
    border: none;
    border-radius: 8px;
    font-size: 13px;
    font-weight: 700;
    cursor: pointer;
    transition: opacity 0.18s, transform 0.12s;
    margin-top: 14px;
}
.ctm-btn-primary:hover { opacity: 0.9; transform: translateY(-1px); }

/* Hint text */
.ctm-hint {
    font-size: 12px;
    color: #888;
    margin: 8px 0 0;
}

/* Assign card */
.ctm-assign-card {
    background: #f8f8fc;
    border: 1px solid #e8e8f0;
    border-radius: 10px;
    padding: 16px 18px;
    margin-top: 12px;
}
.ctm-assign-target {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    color: #444;
    margin-bottom: 14px;
}
.ctm-assign-target svg { color: #2563eb; }
.ctm-date-row {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
}
.ctm-date-row .ctm-field { flex: 1; min-width: 160px; }

/* YouTube layout */
.ctm-yt-wrap {
    display: flex;
    gap: 20px;
    align-items: flex-start;
}
.ctm-yt-form { flex: 1; }
.ctm-yt-preview { flex: 1; min-width: 200px; }

/* Question list area */
.ctm-question-list { margin-top: 0; }

/* --- Quiz Builder Question Card (qb-*) --- */
.qb-question-card {
    background: #fff;
    border: 1px solid #e8e8f0;
    border-left: 4px solid #2563eb;
    border-radius: 10px;
    padding: 16px 18px;
    margin-bottom: 16px;
    box-shadow: 0 2px 6px rgba(0,0,0,0.04);
}
.qb-question-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 10px;
}
.qb-question-num {
    font-size: 12px;
    font-weight: 700;
    color: #2563eb;
    text-transform: uppercase;
    letter-spacing: 0.06em;
}
.qb-remove-btn {
    background: none;
    border: none;
    color: #bbb;
    font-size: 18px;
    cursor: pointer;
    line-height: 1;
    padding: 0 4px;
    transition: color 0.15s;
}
.qb-remove-btn:hover { color: #e74c3c; }

.qb-question-text {
    width: 100%;
    box-sizing: border-box;
    border: 1.5px solid #dde0f0;
    border-radius: 8px;
    padding: 9px 12px;
    font-size: 13px;
    color: #1a1a2e;
    background: #fafafe;
    resize: vertical;
    margin-bottom: 12px;
}
.qb-question-text:focus { outline: none; border-color: #2563eb; background: #fff; }

.qb-options-label {
    font-size: 11px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: #888;
    margin-bottom: 8px;
}
.qb-correct-hint {
    font-weight: 400;
    color: #aaa;
    text-transform: none;
    letter-spacing: 0;
}

.qb-answer-options { display: flex; flex-direction: column; gap: 8px; }

.qb-answer-row {
    display: flex;
    align-items: center;
    gap: 10px;
    background: #f8f8fc;
    border: 1px solid #e8e8f0;
    border-radius: 8px;
    padding: 7px 10px;
    transition: background 0.15s, border-color 0.15s;
}
.qb-answer-row.qb-answer-correct {
    background: #eff6ff;
    border-color: #2563eb;
}
.qb-answer-input {
    flex: 1;
    border: none;
    background: transparent;
    font-size: 13px;
    color: #1a1a2e;
    outline: none;
    min-width: 0;
}
.qb-correct-label {
    display: flex;
    align-items: center;
    gap: 5px;
    font-size: 12px;
    font-weight: 600;
    color: #888;
    white-space: nowrap;
    cursor: pointer;
}
.qb-answer-row.qb-answer-correct .qb-correct-label { color: #2563eb; }

.qb-feedback-row { margin-top: 12px; }
.qb-feedback-label {
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    color: #999;
    letter-spacing: 0.05em;
    display: block;
    margin-bottom: 5px;
}
.qb-feedback-input {
    width: 100%;
    box-sizing: border-box;
    border: 1.5px solid #dde0f0;
    border-radius: 8px;
    padding: 8px 12px;
    font-size: 13px;
    color: #555;
    background: #fafafe;
}
.qb-feedback-input:focus { outline: none; border-color: #2563eb; background: #fff; }

/* Quiz title block */
.quiz_title_block { margin-bottom: 20px; }
.quiz_title_block label { display: block; font-size: 12px; font-weight: 700; color: #555; margin-bottom: 6px; }
.quiz_title_block input { width: 100%; box-sizing: border-box; padding: 10px 14px; border: 1.5px solid #dde0f0; border-radius: 8px; font-size: 15px; font-weight: 600; color: #1a1a2e; background: #fafafe; }
.quiz_title_block input:focus { outline: none; border-color: #2563eb; background: #fff; }

/* Exam question card (ctm-question-list .question-item) */
.ctm-question-list .question-item,
.ctm-question-list .exam-title-wrapper {
    background: #fff;
    border: 1px solid #e8e8f0;
    border-radius: 10px;
    padding: 16px 18px;
    margin-bottom: 16px;
    box-shadow: 0 2px 6px rgba(0,0,0,0.04);
}
.ctm-question-list .exam-title-wrapper {
    border-left: 4px solid #2563eb;
}
.ctm-question-list .question-item {
    border-left: 4px solid #6c63ff;
}
.ctm-question-list .question-number {
    font-size: 12px;
    font-weight: 700;
    color: #6c63ff;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    margin: 0 0 10px;
}
.ctm-question-list .editable-question {
    min-height: 60px;
    padding: 10px 12px;
    border: 1.5px solid #dde0f0;
    border-radius: 8px;
    background: #fafafe;
    font-size: 13px;
    color: #1a1a2e;
    margin-bottom: 12px;
}
.ctm-question-list .statement-list { display: flex; flex-direction: column; gap: 6px; margin-top: 8px; }
.ctm-question-list .statement-item input[type="text"] {
    width: 100%;
    box-sizing: border-box;
    padding: 8px 12px;
    border: 1.5px solid #dde0f0;
    border-radius: 8px;
    font-size: 13px;
    background: #fafafe;
}

/* Essay presentation area */
.ctm-essay-question-wrap .ctm-label { margin-top: 0; }
.ctm-rubric-container { margin-top: 16px; }

/* Wizard step progress nav */
.ctm-wizard-steps {
    display: flex;
    align-items: center;
    gap: 0;
    margin-bottom: 24px;
    background: #fff;
    border: 1px solid #e8e8f0;
    border-radius: 12px;
    padding: 12px 20px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.04);
}
.ctm-wizard-step {
    display: flex;
    align-items: center;
    gap: 8px;
    flex: 1;
    font-size: 12px;
    font-weight: 600;
    color: #aaa;
    position: relative;
}
.ctm-wizard-step::after {
    content: '';
    display: block;
    flex: 1;
    height: 2px;
    background: #e8e8f0;
    margin: 0 8px;
}
.ctm-wizard-step:last-child::after { display: none; }
.ctm-wizard-step.active { color: #2563eb; }
.ctm-wizard-step.done { color: #16a34a; }
.ctm-wizard-step.active::after,
.ctm-wizard-step.done::after { background: #2563eb; }
.ctm-wizard-step-dot {
    width: 22px;
    height: 22px;
    border-radius: 50%;
    border: 2px solid #e8e8f0;
    background: #f8f8fc;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 11px;
    font-weight: 800;
    flex-shrink: 0;
    transition: all 0.2s;
}
.ctm-wizard-step.active .ctm-wizard-step-dot {
    background: #2563eb;
    border-color: #2563eb;
    color: #fff;
}
.ctm-wizard-step.done .ctm-wizard-step-dot {
    background: #16a34a;
    border-color: #16a34a;
    color: #fff;
}

/* Back navigation button */
.ctm-btn-back {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 16px;
    background: #f1f5f9;
    color: #475569;
    border: 1px solid #e2e8f0;
    border-radius: 8px;
    font-size: 12px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.18s;
    margin-bottom: 16px;
}
.ctm-btn-back:hover { background: #e2e8f0; color: #1e293b; }

/* Generating overlay / animation panel */
.ctm-generating-panel {
    display: none;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 60px 20px;
    text-align: center;
    background: #fff;
    border: 1px solid #e8e8f0;
    border-radius: 12px;
    margin-bottom: 20px;
    min-height: 200px;
}
.ctm-generating-panel.active { display: flex; }
.ctm-generating-spinner {
    width: 48px;
    height: 48px;
    border: 4px solid #eff6ff;
    border-top-color: #2563eb;
    border-radius: 50%;
    animation: ctm-spin 0.8s linear infinite;
    margin-bottom: 20px;
}
@keyframes ctm-spin { to { transform: rotate(360deg); } }
.ctm-generating-title {
    font-size: 16px;
    font-weight: 700;
    color: #1e293b;
    margin: 0 0 6px;
}
.ctm-generating-sub {
    font-size: 13px;
    color: #64748b;
    margin: 0;
}

/* Drag handles */
.qb-drag-handle {
    cursor: grab;
    color: #ccc;
    font-size: 16px;
    padding: 0 6px 0 0;
    user-select: none;
    flex-shrink: 0;
    line-height: 1;
}
.qb-drag-handle:hover { color: #2563eb; }
.qb-drag-handle:active { cursor: grabbing; }

.qb-answer-drag-handle {
    cursor: grab;
    color: #ccc;
    font-size: 13px;
    padding: 0 4px 0 0;
    user-select: none;
    flex-shrink: 0;
}
.qb-answer-drag-handle:hover { color: #2563eb; }
.qb-answer-drag-handle:active { cursor: grabbing; }

/* Sortable drag states */
.qb-question-card.ui-sortable-helper {
    box-shadow: 0 8px 24px rgba(37,99,235,0.18);
    transform: rotate(1deg);
    border-left-color: #2563eb;
    opacity: 0.95;
}
.qb-question-card.ui-sortable-placeholder {
    background: #eff6ff;
    border: 2px dashed #93c5fd;
    border-radius: 10px;
    visibility: visible !important;
}
.qb-answer-row.ui-sortable-helper {
    box-shadow: 0 4px 12px rgba(37,99,235,0.15);
    opacity: 0.95;
}
.qb-answer-row.ui-sortable-placeholder {
    background: #eff6ff;
    border: 2px dashed #93c5fd;
    visibility: visible !important;
    min-height: 38px;
    border-radius: 8px;
}

/* Shuffle / reorder toolbar */
.qb-toolbar {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 12px;
    flex-wrap: wrap;
}
.qb-toolbar-label {
    font-size: 11px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: #94a3b8;
    margin-right: 4px;
}
.ctm-btn-shuffle {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    padding: 6px 12px;
    background: #eff6ff;
    color: #2563eb;
    border: 1px solid #bfdbfe;
    border-radius: 7px;
    font-size: 12px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.18s;
}
.ctm-btn-shuffle:hover { background: #dbeafe; border-color: #2563eb; }

.qb-answer-toolbar {
    display: flex;
    align-items: center;
    gap: 6px;
    margin-bottom: 6px;
}
.qb-answer-toolbar-label {
    font-size: 10px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: #aaa;
    flex: 1;
}

/* Responsive */
@media (max-width: 600px) {
    .ctm-type-toggle { flex-direction: column; }
    .ctm-row { flex-direction: column; align-items: stretch; }
    .ctm-btn-generate { width: 100%; justify-content: center; }
    .ctm-yt-wrap { flex-direction: column; }
    .ctm-date-row { flex-direction: column; }
    .ctm-wizard-steps { flex-direction: column; align-items: flex-start; gap: 8px; }
    .ctm-wizard-step::after { display: none; }
}

/* =============================================================
   STUDENT RESPONSE REVIEW — Premium design system
   Applies to: MCQ, Exam, Essay, Course Page review panes
   ============================================================= */

/* Force platform font on the entire review pane */
#assessment-detail-content,
#markbook-response-content-mb {
    font-family: -apple-system, BlinkMacSystemFont, 'Inter', 'Segoe UI', Roboto, sans-serif !important;
    color: var(--eai-brand-dark, #10213A);
    font-size: 0.92rem;
    line-height: 1.6;
}

/* Reviewer heading */
.review-heading {
    display: flex;
    align-items: center;
    gap: 10px;
    margin: 0 0 22px;
    padding-bottom: 16px;
    border-bottom: 1px solid var(--eai-brand-border, #E8EEF6);
    font-size: 1rem;
    font-weight: 700;
    color: var(--eai-brand-dark, #10213A);
}

/* ── Question Card ── */
.review-question-card {
    background: #fff;
    border: 1px solid var(--eai-brand-border, #E8EEF6);
    border-radius: 16px;
    padding: 22px 24px;
    margin-bottom: 18px;
    box-shadow: 0 2px 10px rgba(16, 33, 58, 0.05);
    transition: box-shadow 0.18s ease;
}
.review-question-card:hover {
    box-shadow: 0 6px 22px rgba(16, 33, 58, 0.09);
}

/* ── Question Header ── */
.review-question-header {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    margin-bottom: 14px;
}
.review-q-num {
    flex-shrink: 0;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    background: var(--eai-brand-dark, #10213A);
    color: #fff;
    border-radius: 50%;
    font-size: 0.75rem;
    font-weight: 800;
    letter-spacing: 0.02em;
}
.review-q-title {
    margin: 0;
    font-size: 0.97rem;
    font-weight: 700;
    color: var(--eai-brand-dark, #10213A);
    line-height: 1.45;
    padding-top: 5px;
}

/* ── Question Content (stem) ── */
.review-question-content {
    margin-bottom: 16px;
    padding: 14px 16px;
    background: var(--eai-brand-bg, #F7FAFD);
    border-left: 3px solid var(--eai-brand-primary, #339cff);
    border-radius: 0 10px 10px 0;
    font-size: 0.92rem;
    color: var(--eai-brand-secondary, #5B6B84);
    line-height: 1.65;
}

/* ── MCQ Answer Row ── */
.review-answer-row {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 10px;
    padding: 12px 16px;
    background: var(--eai-brand-bg, #F7FAFD);
    border: 1px solid var(--eai-brand-border, #E8EEF6);
    border-radius: 10px;
    margin-bottom: 14px;
}
.review-label {
    font-size: 0.75rem;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0.07em;
    color: var(--eai-brand-secondary, #5B6B84);
    flex-shrink: 0;
}
.review-answer-text {
    font-size: 0.92rem;
    font-weight: 600;
    color: var(--eai-brand-dark, #10213A);
    flex: 1;
}
.review-result-badge {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    padding: 4px 11px;
    border-radius: 999px;
    font-size: 0.76rem;
    font-weight: 800;
    letter-spacing: 0.03em;
    flex-shrink: 0;
}
.review-result-icon {
    font-size: 0.85rem;
    line-height: 1;
}
.review-result--correct {
    background: #edfaf4;
    color: #1a7a54;
    border: 1px solid #b7edd9;
}
.review-result--incorrect {
    background: #fff0f0;
    color: #a92828;
    border: 1px solid #ffc9c9;
}
.review-no-answer {
    color: var(--eai-brand-secondary, #5B6B84);
    font-style: italic;
    font-size: 0.88rem;
    margin: 0;
}

/* ── Written Answer Block ── */
.review-written-answer {
    margin-bottom: 18px;
}
.review-written-answer .review-label {
    display: block;
    margin-bottom: 8px;
}
.review-answer-body {
    background: #fbfdff;
    border: 1px solid var(--eai-brand-border, #E8EEF6);
    border-radius: 10px;
    padding: 14px 16px;
    font-size: 0.92rem;
    color: var(--eai-brand-dark, #10213A);
    line-height: 1.7;
    white-space: pre-line;
    min-height: 60px;
}

/* ── Marking Container ── */
.review-marking-container {
    margin-bottom: 18px;
    border: 1px solid var(--eai-brand-border, #E8EEF6);
    border-radius: 12px;
    overflow: hidden;
}
.review-marking-header {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 16px;
    background: var(--eai-brand-bg, #F7FAFD);
    border-bottom: 1px solid var(--eai-brand-border, #E8EEF6);
}
.review-marking-title {
    font-size: 0.78rem;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0.07em;
    color: var(--eai-brand-dark, #10213A);
}
.review-marking-type-badge {
    display: inline-flex;
    align-items: center;
    padding: 2px 9px;
    border-radius: 999px;
    background: #eef6ff;
    color: #1a6bbf;
    border: 1px solid #c2ddff;
    font-size: 0.7rem;
    font-weight: 800;
    letter-spacing: 0.04em;
}

/* ── Statement Items (Points marking) ── */
.statement-container {
    padding: 12px;
    display: flex;
    flex-direction: column;
    gap: 6px;
}
.statement-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 14px;
    border-radius: 8px;
    font-size: 0.89rem;
    font-weight: 500;
    line-height: 1.5;
    cursor: pointer;
    transition: background 0.15s ease, border-color 0.15s ease;
    border: 1.5px solid transparent;
}
.statement-item::before {
    content: '';
    flex-shrink: 0;
    width: 16px;
    height: 16px;
    border-radius: 50%;
    border: 2px solid currentColor;
    opacity: 0.5;
}
.statement-item.csuk-highlight-green,
.statement-item.selected {
    background: #edfaf4;
    border-color: #b7edd9;
    color: #1a7a54;
}
.statement-item.csuk-highlight-green::before,
.statement-item.selected::before {
    background: #1a7a54;
    border-color: #1a7a54;
    opacity: 1;
    content: '✓';
    color: #fff;
    font-size: 9px;
    display: flex;
    align-items: center;
    justify-content: center;
}
.statement-item.csuk-highlight-red,
.statement-item.error {
    background: #fff0f0;
    border-color: #ffc9c9;
    color: #a92828;
}
.statement-item.csuk-highlight-red::before,
.statement-item.error::before {
    background: #a92828;
    border-color: #a92828;
    opacity: 1;
    content: '✗';
    color: #fff;
    font-size: 9px;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* ── Rubric Table ── */
.review-marking-container .csuk-rubric-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.875rem;
}
.review-marking-container .csuk-rubric-table th {
    padding: 10px 14px;
    text-align: left;
    background: var(--eai-brand-bg, #F7FAFD);
    font-weight: 800;
    color: var(--eai-brand-dark, #10213A);
    font-size: 0.82rem;
    width: 20%;
    border-right: 1px solid var(--eai-brand-border, #E8EEF6);
}
.review-marking-container .csuk-rubric-table td {
    padding: 10px 14px;
    border-left: 1px solid var(--eai-brand-border, #E8EEF6);
    vertical-align: top;
    font-size: 0.86rem;
    line-height: 1.55;
    color: var(--eai-brand-secondary, #5B6B84);
    cursor: pointer;
    transition: background 0.14s ease;
}
.review-marking-container .csuk-rubric-table tr {
    border-bottom: 1px solid var(--eai-brand-border, #E8EEF6);
}
.review-marking-container .csuk-rubric-table tr:last-child {
    border-bottom: none;
}
.rubric-choice { cursor: pointer; }
.rubric-choice.csuk-highlight-green,
.rubric-choice.rubric-selected {
    background: #edfaf4 !important;
    color: #1a7a54 !important;
    font-weight: 700;
}
.rubric-choice.csuk-highlight-red {
    background: #fff0f0 !important;
    color: #a92828 !important;
}

/* ── Level choices ── */
.level-item {
    padding: 10px 14px;
    border-bottom: 1px solid var(--eai-brand-border, #E8EEF6);
    font-size: 0.88rem;
    color: var(--eai-brand-dark, #10213A);
}
.level-item:last-child { border-bottom: none; }
.level-item p { margin: 0; }
.level-choice {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 36px;
    padding: 4px 8px;
    border-radius: 6px;
    margin: 0 3px;
    font-size: 0.85rem;
    font-weight: 700;
    cursor: pointer;
    transition: background 0.14s ease;
    border: 1.5px solid var(--eai-brand-border, #E8EEF6);
}
.level-choice.csuk-highlight-green,
.level-choice.selected {
    background: #edfaf4;
    border-color: #b7edd9;
    color: #1a7a54;
}
.level-choice.csuk-highlight-red {
    background: #fff0f0;
    border-color: #ffc9c9;
    color: #a92828;
}

/* ── Per-question score row ── */
.review-score-row {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 16px;
}
.review-score-label {
    font-size: 0.75rem;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0.07em;
    color: var(--eai-brand-secondary, #5B6B84);
}
.review-score-value {
    display: inline-flex;
    align-items: center;
    padding: 4px 12px;
    border-radius: 999px;
    font-size: 0.82rem;
    font-weight: 800;
    border: 1px solid transparent;
}
.review-score-value.score-green  { background: #edfaf4; color: #1a7a54; border-color: #b7edd9; }
.review-score-value.score-amber  { background: #fff7e8; color: #9a5b00; border-color: #ffd899; }
.review-score-value.score-red    { background: #fff0f0; color: #a92828; border-color: #ffc9c9; }

/* ── Teacher Feedback Block ── */
.review-feedback-block {
    background: var(--eai-brand-bg, #F7FAFD);
    border: 1px solid var(--eai-brand-border, #E8EEF6);
    border-radius: 12px;
    padding: 14px 16px;
    margin-top: 14px;
}
.review-feedback-label {
    display: block;
    font-size: 0.75rem;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0.07em;
    color: var(--eai-brand-secondary, #5B6B84);
    margin-bottom: 8px;
}
.review-feedback-text {
    margin: 0;
    font-size: 0.9rem;
    color: var(--eai-brand-dark, #10213A);
    line-height: 1.65;
}
.review-feedback-textarea {
    width: 100%;
    min-height: 80px;
    padding: 10px 12px;
    font-size: 0.9rem;
    font-family: inherit;
    border: 1.5px solid #d9e4f2;
    border-radius: 10px;
    background: #fff;
    color: var(--eai-brand-dark, #10213A);
    resize: vertical;
    box-sizing: border-box;
    transition: border-color 0.18s ease, box-shadow 0.18s ease;
    line-height: 1.6;
}
.review-feedback-textarea:focus {
    border-color: var(--eai-brand-primary, #339cff);
    box-shadow: 0 0 0 3px rgba(51, 156, 255, 0.13);
    outline: none;
}
.review-update-btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    margin-top: 10px;
    padding: 9px 18px;
    background: var(--eai-brand-primary, #339cff);
    color: #fff;
    border: none;
    border-radius: 999px;
    font-size: 0.84rem;
    font-weight: 800;
    cursor: pointer;
    box-shadow: 0 4px 14px rgba(51, 156, 255, 0.22);
    transition: background 0.18s ease, transform 0.18s ease;
    font-family: inherit;
}
.review-update-btn:hover {
    background: var(--eai-brand-primary-hover, #2288f5);
    transform: translateY(-1px);
}

/* ── Overall summary banner ── */
.review-overall-summary {
    margin-top: 24px;
    border-radius: 16px;
    padding: 20px 24px;
    border: 1.5px solid transparent;
}
.review-overall-summary.score-green { background: #edfaf4; border-color: #b7edd9; }
.review-overall-summary.score-amber { background: #fff7e8; border-color: #ffd899; }
.review-overall-summary.score-red   { background: #fff0f0; border-color: #ffc9c9; }
.review-overall-inner {
    display: flex;
    align-items: center;
    gap: 14px;
    flex-wrap: wrap;
}
.review-overall-label {
    font-size: 0.78rem;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0.07em;
    color: var(--eai-brand-secondary, #5B6B84);
    flex: 1;
}
.review-overall-value {
    font-size: 1.35rem;
    font-weight: 800;
    color: var(--eai-brand-dark, #10213A);
    line-height: 1;
}
.review-overall-pct {
    font-size: 1rem;
    font-weight: 700;
    color: var(--eai-brand-secondary, #5B6B84);
}

/* ── Rubric item wrapper ── */
.rubric-item {
    border-bottom: 1px solid var(--eai-brand-border, #E8EEF6);
    overflow-x: auto;
}
.rubric-item:last-child { border-bottom: none; }

/* ── Rubric / Level choice highlights (high specificity) ── */
.rubric-choice {
    cursor: pointer;
    padding: 6px 8px;
    border-radius: 6px;
    font-size: 0.85rem;
    line-height: 1.4;
    transition: background 0.15s, color 0.15s;
}
.rubric-choice:hover { background: #EFF6FF; }
.rubric-choice.rubric-selected,
.rubric-choice.csuk-highlight-green,
td .rubric-choice.rubric-selected,
td .rubric-choice.csuk-highlight-green {
    background: #DCFCE7 !important;
    color: #14532D !important;
    border: 1.5px solid #86EFAC !important;
    font-weight: 600;
}
.rubric-choice.csuk-highlight-red,
td .rubric-choice.csuk-highlight-red {
    background: #FEF2F2 !important;
    color: #7F1D1D !important;
    border: 1.5px solid #FECACA !important;
    opacity: 0.65;
}

/* Level choice highlights */
.level-choice {
    cursor: pointer;
    padding: 5px 10px;
    border-radius: 6px;
    font-size: 0.85rem;
    transition: background 0.15s;
}
.level-choice:hover { background: #EFF6FF; }
.level-choice.csuk-highlight-green,
td .level-choice.csuk-highlight-green {
    background: #DCFCE7 !important;
    color: #14532D !important;
    border: 1.5px solid #86EFAC !important;
    font-weight: 600;
}
.level-choice.csuk-highlight-red,
td .level-choice.csuk-highlight-red {
    background: #FEF2F2 !important;
    color: #7F1D1D !important;
    border: 1.5px solid #FECACA !important;
    opacity: 0.65;
}

/* ── Course page review summary ── */
.eai-course-page-attempt .question-content {
    font-style: normal;
    color: var(--eai-brand-dark, #10213A);
    background: var(--eai-brand-bg, #F7FAFD);
    border-left: 3px solid var(--eai-brand-primary, #339cff);
    border-radius: 0 10px 10px 0;
    padding: 12px 14px;
    margin: 10px 0 14px;
}

/* Responsive */
@media (max-width: 600px) {
    .review-question-card { padding: 16px; }
    .review-overall-inner { gap: 8px; }
    .review-answer-row { flex-direction: column; align-items: flex-start; }
}


/* =============================================================================
   STUDENT TASK MODAL — Premium shell
   ============================================================================= */

#csuk-assessment-modal {
    position: fixed;
    inset: 0;
    z-index: 99999;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(10, 25, 55, 0.55);
    backdrop-filter: blur(4px);
    padding: 16px;
    font-family: -apple-system, BlinkMacSystemFont, 'Inter', 'Segoe UI', Roboto, sans-serif;
}

.csuk-assessment-content {
    position: relative;
    background: #fff;
    border-radius: 16px;
    box-shadow: 0 24px 64px rgba(10, 25, 55, 0.18);
    width: 100%;
    max-width: 1100px;
    max-height: 92vh;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
}

.csuk-close-wrapper {
    position: sticky;
    top: 0;
    z-index: 10;
    display: flex;
    justify-content: flex-end;
    padding: 12px 16px 0;
    background: #fff;
    border-radius: 16px 16px 0 0;
}

#csuk-modal-close {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: #F0F4FA;
    color: #4B5563;
    font-size: 20px;
    line-height: 1;
    cursor: pointer;
    transition: background 0.15s, color 0.15s;
    border: none;
    font-family: inherit;
}
#csuk-modal-close:hover { background: #E0E8F5; color: #1e3a5f; }

#csuk-assessment-loader {
    padding: 48px 32px;
    text-align: center;
    color: #6B7280;
    font-size: 0.95rem;
    font-family: inherit;
}

#csuk-assessment-rendered {
    padding: 0 0 24px;
}


/* =============================================================================
   SHARED STUDENT TASK LAYOUT — eai-task-modal-wrap
   ============================================================================= */

.eai-task-modal-wrap {
    font-family: -apple-system, BlinkMacSystemFont, 'Inter', 'Segoe UI', Roboto, sans-serif;
    color: #10213A;
}

/* ── Task Header ─────────────────────────────────────────────────────────── */
.eai-task-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    padding: 20px 24px 16px;
    border-bottom: 1px solid #E8EEF6;
    background: linear-gradient(135deg, #f7fafd 0%, #eef3fb 100%);
    border-radius: 16px 16px 0 0;
    flex-wrap: wrap;
}

.eai-task-header-inner {
    display: flex;
    align-items: center;
    gap: 10px;
    flex: 1;
    min-width: 0;
}

.eai-task-type-badge {
    display: inline-block;
    background: #2563eb;
    color: #fff;
    font-size: 0.7rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    padding: 3px 9px;
    border-radius: 20px;
    white-space: nowrap;
    flex-shrink: 0;
}

.eai-task-title {
    font-size: 1.05rem;
    font-weight: 700;
    color: #10213A;
    margin: 0;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    font-family: inherit;
}

.eai-task-progress-wrap {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-shrink: 0;
}

.eai-task-progress-bar {
    width: 120px;
    height: 6px;
    background: #DDE5F0;
    border-radius: 3px;
    overflow: hidden;
}

.eai-task-progress-fill {
    height: 100%;
    background: linear-gradient(90deg, #2563eb, #3b82f6);
    border-radius: 3px;
    transition: width 0.4s ease;
}

.eai-task-progress-label {
    font-size: 0.78rem;
    color: #6B7280;
    white-space: nowrap;
    font-family: inherit;
}

/* ── Q-Tab Bar (shared teacher + student) ────────────────────────────────── */
.eai-qtab-bar {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    padding: 12px 24px;
    background: #F7FAFD;
    border-bottom: 1px solid #E8EEF6;
}

.eai-qtab {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 40px;
    padding: 5px 12px;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
    color: #4B5563;
    background: #fff;
    border: 1.5px solid #D1DCF0;
    cursor: pointer;
    transition: all 0.15s;
    font-family: inherit;
    white-space: nowrap;
}

.eai-qtab:hover {
    border-color: #2563eb;
    color: #2563eb;
    background: #EFF6FF;
}

.eai-qtab.active {
    background: #2563eb;
    color: #fff;
    border-color: #2563eb;
    box-shadow: 0 2px 8px rgba(37, 99, 235, 0.25);
}

.eai-qtab.eai-qtab--done:not(.active) {
    background: #ECFDF5;
    border-color: #6EE7B7;
    color: #065F46;
}

/* ── Question Card ───────────────────────────────────────────────────────── */
.eai-task-question-card {
    padding: 22px 24px;
    border-bottom: 1px solid #E8EEF6;
    background: #fff;
}
.eai-task-question-card:last-of-type { border-bottom: none; }

.eai-task-q-header {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    margin-bottom: 14px;
}

.eai-task-q-num {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 34px;
    height: 34px;
    padding: 0 8px;
    border-radius: 8px;
    background: #EFF6FF;
    color: #2563eb;
    font-size: 0.82rem;
    font-weight: 700;
    flex-shrink: 0;
    font-family: inherit;
}

.eai-task-q-meta {
    flex: 1;
    min-width: 0;
}

.eai-task-q-title {
    font-size: 1rem;
    font-weight: 600;
    color: #10213A;
    margin: 0 0 4px;
    font-family: inherit;
}

.eai-task-q-marks {
    display: inline-block;
    font-size: 0.75rem;
    font-weight: 600;
    color: #6B7280;
    background: #F3F4F6;
    border-radius: 12px;
    padding: 2px 8px;
    font-family: inherit;
}

.eai-task-q-stem {
    font-size: 0.93rem;
    color: #374151;
    background: #F7FAFD;
    border-left: 3px solid #2563eb;
    border-radius: 0 8px 8px 0;
    padding: 10px 14px;
    margin-bottom: 16px;
    line-height: 1.6;
    font-family: inherit;
}
.eai-task-q-stem p { margin: 0; }

/* ── Answer Area ─────────────────────────────────────────────────────────── */
.eai-task-answer-wrap {
    margin-bottom: 14px;
}

.eai-task-answer-label {
    display: block;
    font-size: 0.78rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: #6B7280;
    margin-bottom: 6px;
    font-family: inherit;
}

.eai-task-answer-area {
    width: 100%;
    min-height: 200px;
    padding: 14px 16px;
    border: 1.5px solid #D1DCF0;
    border-radius: 10px;
    font-size: 0.95rem;
    line-height: 1.7;
    color: #10213A;
    background: #FAFCFF;
    outline: none;
    transition: border-color 0.2s, box-shadow 0.2s;
    box-sizing: border-box;
    font-family: inherit;
    display: block;
    overflow-y: auto;
    resize: vertical;
}
.eai-task-answer-area:focus {
    border-color: #2563eb;
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.12);
    background: #fff;
}
.eai-task-answer-area[contenteditable="false"] {
    background: #F7FAFD;
    color: #374151;
    cursor: default;
    border-color: #E8EEF6;
}
.eai-task-answer-area:empty:before {
    content: attr(data-placeholder);
    color: #9CA3AF;
    pointer-events: none;
}

.eai-task-answer-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-top: 6px;
    gap: 12px;
}

.eai-task-word-count {
    font-size: 0.75rem;
    color: #9CA3AF;
    font-family: inherit;
}

/* ── Submit / Action Buttons ─────────────────────────────────────────────── */
.eai-task-submit-btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 9px 20px;
    background: #2563eb;
    color: #fff !important;
    font-size: 0.85rem;
    font-weight: 600;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    transition: background 0.15s, transform 0.1s, box-shadow 0.15s;
    font-family: inherit;
    white-space: nowrap;
}
.eai-task-submit-btn:hover {
    background: #1d4ed8;
    box-shadow: 0 3px 10px rgba(37, 99, 235, 0.3);
    transform: translateY(-1px);
}
.eai-task-submit-btn:active { transform: translateY(0); }
.eai-task-submit-btn:disabled {
    background: #93C5FD;
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}

.eai-quiz-retake-btn {
    background: #6B7280;
}
.eai-quiz-retake-btn:hover { background: #4B5563; }

.eai-quiz-actions {
    padding: 16px 24px;
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
    border-top: 1px solid #E8EEF6;
    background: #F7FAFD;
}

/* ── MCQ Options ─────────────────────────────────────────────────────────── */
.eai-mcq-options {
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin-bottom: 14px;
}

.eai-mcq-option {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 11px 14px;
    border: 1.5px solid #D1DCF0;
    border-radius: 10px;
    cursor: pointer;
    transition: all 0.15s;
    background: #fff;
    font-family: inherit;
}
.eai-mcq-option:hover {
    border-color: #2563eb;
    background: #EFF6FF;
}
.eai-mcq-option input[type="radio"] {
    accent-color: #2563eb;
    width: 16px;
    height: 16px;
    flex-shrink: 0;
}
.eai-mcq-option--selected,
.eai-mcq-option:has(input:checked) {
    border-color: #2563eb;
    background: #EFF6FF;
}
.eai-mcq-option input[type="radio"]:disabled ~ .eai-mcq-option-text {
    color: #6B7280;
}

.eai-mcq-option-text {
    font-size: 0.92rem;
    color: #10213A;
    line-height: 1.5;
    font-family: inherit;
}

.eai-mcq-footer {
    display: flex;
    justify-content: flex-end;
    margin-bottom: 6px;
}

.eai-mcq-feedback {
    margin-top: 10px;
    padding: 10px 14px;
    border-radius: 8px;
    font-size: 0.88rem;
    line-height: 1.55;
    font-family: inherit;
}
.eai-mcq-feedback:not(:empty) {
    background: #F0FDF4;
    border-left: 3px solid #22C55E;
    color: #14532D;
}

/* ── Marking Result Area ─────────────────────────────────────────────────── */
.eai-task-marking-result {
    margin-top: 14px;
    border: 1.5px solid #E8EEF6;
    border-radius: 10px;
    overflow: hidden;
    background: #fff;
}

.eai-task-marking-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 9px 14px;
    background: #F7FAFD;
    border-bottom: 1px solid #E8EEF6;
    gap: 10px;
}

.eai-task-marking-title {
    font-size: 0.78rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: #4B5563;
    font-family: inherit;
}

.eai-task-max-marks {
    font-size: 0.75rem;
    font-weight: 600;
    color: #6B7280;
    background: #F3F4F6;
    border-radius: 12px;
    padding: 2px 8px;
    font-family: inherit;
}

/* ── Feedback result in student view ─────────────────────────────────────── */
.eai-task-feedback-result {
    margin: 10px 14px 10px;
    padding: 10px 14px;
    border-radius: 8px;
    background: #EFF6FF;
    border-left: 3px solid #2563eb;
}

.eai-task-feedback-label {
    display: block;
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: #2563eb;
    margin-bottom: 4px;
    font-family: inherit;
}

.eai-task-feedback-text {
    font-size: 0.9rem;
    color: #1e3a5f;
    margin: 0;
    line-height: 1.65;
    font-family: inherit;
}
.eai-task-feedback-text p {
    margin: 0 0 0.6em;
    line-height: 1.65;
}
.eai-task-feedback-text p:last-child { margin-bottom: 0; }

.eai-task-saved-feedback {
    margin-top: 10px;
    padding: 10px 14px;
    border-radius: 8px;
    background: #EFF6FF;
    border-left: 3px solid #2563eb;
}

/* ── AI Feedback in marking container ────────────────────────────────────── */
.ai-feedback {
    padding: 10px 14px;
    margin: 6px 0 0;
    font-size: 0.88rem;
    color: #1e3a5f;
    background: #EFF6FF;
    border-left: 3px solid #2563eb;
    border-radius: 0 6px 6px 0;
    font-family: inherit;
    line-height: 1.55;
}

/* ── Achieved marks badge ────────────────────────────────────────────────── */
.csuk-achieved-marks {
    padding: 8px 14px;
    margin: 8px 0 0;
    font-size: 0.88rem;
    font-weight: 600;
    color: #10213A;
    background: #F0FDF4;
    border-left: 3px solid #22C55E;
    border-radius: 0 6px 6px 0;
    font-family: inherit;
}

/* ── Q-tab nav in teacher review pane (injected dynamically) ─────────────── */
#assessment-detail-content .eai-qtab-bar,
#markbook-response-content-mb .eai-qtab-bar {
    border-radius: 8px;
    margin-bottom: 2px;
}

/* ── Responsive ──────────────────────────────────────────────────────────── */
@media (max-width: 640px) {
    .eai-task-header {
        padding: 14px 16px 12px;
        flex-direction: column;
        align-items: flex-start;
    }
    .eai-task-question-card { padding: 16px; }
    .eai-qtab-bar { padding: 10px 16px; }
    .eai-task-progress-wrap { width: 100%; }
    .eai-task-progress-bar { flex: 1; }
    .csuk-assessment-content { max-height: 95vh; border-radius: 12px; }
    .eai-mcq-option { padding: 9px 12px; }
}

/* ── Student modal wider shell (MCQ / Essay / Exam) ──────────────────────── */
.csuk-assessment-content {
    max-width: 1600px !important;
    width: calc(100vw - 40px) !important;
}

/* ── Monitor Tasks: filter bar ───────────────────────────────────────────── */
.eai-task-monitor-wrap {
    margin-top: 24px;
}

.eai-task-filter-bar {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    padding: 0 0 18px;
}

.eai-filter-btn {
    display: inline-flex;
    align-items: center;
    height: 34px;
    padding: 0 16px;
    border-radius: 999px;
    border: 1.5px solid var(--eai-gray-200);
    background: #fff;
    color: var(--eai-gray-600);
    font-size: 0.82rem;
    font-weight: 700;
    cursor: pointer;
    transition: background 0.16s, border-color 0.16s, color 0.16s;
    white-space: nowrap;
}

.eai-filter-btn:hover {
    border-color: var(--eai-blue-500);
    color: var(--eai-blue-600);
    background: var(--eai-blue-50);
}

.eai-filter-btn.active {
    background: var(--eai-blue-600);
    border-color: var(--eai-blue-600);
    color: #fff;
    box-shadow: 0 2px 8px rgba(37,99,235,0.25);
}

/* ── Monitor Tasks: section heading ─────────────────────────────────────── */
.eai-task-section {
    margin-bottom: 28px;
}

.eai-task-section-heading {
    font-size: 0.72rem;
    font-weight: 800;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--eai-gray-500);
    margin-bottom: 10px;
    padding-left: 2px;
}

/* ── dashboard-modal inner padding ──────────────────────────────────────── */
.dashboard-modal {
    padding: 28px 32px !important;
}

@media (max-width: 900px) {
    .dashboard-modal { padding: 18px 16px !important; }
    .eai-filter-btn { font-size: 0.78rem; padding: 0 12px; }
    .csuk-assessment-content { width: calc(100vw - 20px) !important; }
}

/* =============================================================
   MEMBERSHIP ACCESS / PRO PAYWALL BOX
   ============================================================= */

.csuk-membership-access-box {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    max-width: 480px;
    margin: 60px auto;
    padding: 48px 40px 40px;
    background: #ffffff;
    border: 1px solid var(--eai-gray-200);
    border-radius: 20px;
    box-shadow: 0 8px 40px rgba(15, 23, 42, 0.09), 0 2px 8px rgba(15, 23, 42, 0.04);
}

.csuk-membership-icon {
    font-size: 2.6rem;
    line-height: 1;
    margin-bottom: 16px;
    filter: drop-shadow(0 2px 6px rgba(37,99,235,0.15));
}

.csuk-membership-title {
    font-size: 1.45rem;
    font-weight: 800;
    color: var(--eai-gray-900);
    margin: 0 0 10px;
    letter-spacing: -0.02em;
}

.csuk-membership-message {
    font-size: 0.95rem;
    color: var(--eai-gray-500);
    margin: 0 0 28px;
    line-height: 1.5;
}

.csuk-membership-button {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    width: 100%;
    padding: 14px 24px;
    border-radius: 12px;
    border: none;
    cursor: pointer;
    font-family: inherit;
    text-decoration: none;
    transition: transform 0.15s ease, box-shadow 0.15s ease, background 0.15s ease;
    margin-bottom: 4px;
}

.csuk-membership-button--trial {
    background: linear-gradient(135deg, #10b981 0%, #059669 100%);
    color: #ffffff;
    font-size: 1rem;
    font-weight: 700;
    box-shadow: 0 4px 16px rgba(16, 185, 129, 0.35);
}

.csuk-membership-button--trial:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(16, 185, 129, 0.45);
    background: linear-gradient(135deg, #0ea472 0%, #047857 100%);
    color: #ffffff;
}

.csuk-membership-note {
    font-size: 0.78rem;
    color: var(--eai-gray-400);
    margin: 6px 0 0;
}

.csuk-membership-divider {
    display: flex;
    align-items: center;
    width: 100%;
    margin: 20px 0;
    gap: 12px;
    color: var(--eai-gray-300);
    font-size: 0.8rem;
    font-weight: 600;
    letter-spacing: 0.05em;
    text-transform: uppercase;
}

.csuk-membership-divider::before,
.csuk-membership-divider::after {
    content: '';
    flex: 1;
    height: 1px;
    background: var(--eai-gray-200);
}

.csuk-membership-divider span {
    color: var(--eai-gray-400);
}

.csuk-membership-button--pro {
    background: linear-gradient(135deg, #2563eb 0%, #1d4ed8 100%);
    color: #ffffff !important;
    box-shadow: 0 4px 16px rgba(37, 99, 235, 0.35);
    gap: 2px;
    text-decoration: none;
}

.csuk-membership-button--pro:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 28px rgba(37, 99, 235, 0.45);
    background: linear-gradient(135deg, #1d55d8 0%, #1a43bf 100%);
    color: #ffffff !important;
    text-decoration: none;
}

.csuk-membership-button-title {
    font-size: 1rem;
    font-weight: 700;
}

.csuk-membership-button-price {
    font-size: 1.15rem;
    font-weight: 800;
    letter-spacing: -0.01em;
    margin-top: 2px;
}

.csuk-membership-button-sub {
    font-size: 0.75rem;
    opacity: 0.8;
    margin-top: 1px;
}

.csuk-membership-features {
    list-style: none;
    padding: 0;
    margin: 24px 0 0;
    width: 100%;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 8px 12px;
    text-align: left;
}

.csuk-membership-features li {
    font-size: 0.82rem;
    color: var(--eai-gray-600);
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 4px;
}

@media (max-width: 520px) {
    .csuk-membership-access-box {
        margin: 32px 16px;
        padding: 32px 24px 28px;
    }
    .csuk-membership-features {
        grid-template-columns: 1fr;
    }
}