/* ========================================
   WORKSHEET STYLES
   Interactive worksheets for Life Sciences Navigator
   Modeled after calculators.css
   ======================================== */

:root {
  /* Worksheet-specific “glass” tokens (mirrors calculators.css vibe without changing global theme tokens) */
  --ws-glass-bg: linear-gradient(145deg, rgba(255,255,255,0.06) 0%, rgba(255,255,255,0.02) 100%);
  --ws-glass-bg-2: linear-gradient(145deg, rgba(255,255,255,0.045) 0%, rgba(255,255,255,0.015) 100%);
  --ws-glass-border: rgba(255,255,255,0.10);
  --ws-glass-border-strong: rgba(255,255,255,0.14);
  --ws-glass-shadow: 0 12px 34px rgba(0,0,0,0.38);
  --ws-glass-shadow-soft: 0 8px 22px rgba(0,0,0,0.28);
}

/* Graceful fallback if backdrop-filter isn't supported */
@supports not ((backdrop-filter: blur(1px)) or (-webkit-backdrop-filter: blur(1px))) {
  .worksheet-card-btn,
  .worksheet-modal-header,
  .worksheet-sidebar,
  .worksheet-educational,
  .worksheet-concept-card,
  .worksheet-code-item,
  .worksheet-model-item,
  .worksheet-diagram,
  .worksheet-resources,
  .worksheet-resource-link,
  .worksheet-confidence-panel,
  .worksheet-checkbox,
  .worksheet-matrix {
    background: var(--color-surface);
  }
}

/* -------- Module-page Worksheet Cards -------- */

.worksheets-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}

.worksheet-card-btn {
  display: flex;
  align-items: center;
  gap: 16px;
  width: 100%;
  padding: 20px;
  background: var(--ws-glass-bg);
  border: 1px solid var(--ws-glass-border);
  border-radius: var(--radius-lg);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  box-shadow: var(--ws-glass-shadow-soft);
  cursor: pointer;
  text-align: left;
  transition: all 0.3s ease;
}

.worksheet-card-btn:hover {
  border-color: color-mix(in srgb, var(--module-color, #6366f1) 55%, var(--ws-glass-border));
  background: linear-gradient(
    145deg,
    color-mix(in srgb, var(--module-color, #6366f1) 14%, rgba(255,255,255,0.04)) 0%,
    color-mix(in srgb, var(--module-color, #6366f1) 6%, rgba(255,255,255,0.01)) 100%
  );
  transform: translateY(-2px);
  box-shadow: var(--ws-glass-shadow);
}

.worksheet-card-icon {
  flex-shrink: 0;
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: color-mix(in srgb, var(--module-color, #6366f1) 15%, transparent);
  border-radius: var(--radius-md);
  color: var(--module-color, #6366f1);
}

.worksheet-card-icon svg {
  width: 24px;
  height: 24px;
}

.worksheet-card-content {
  flex: 1;
  min-width: 0;
}

.worksheet-card-title-row {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
}

.worksheet-card-content h4 {
  font-size: 1rem;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 6px;
}

.worksheet-card-time {
  font-size: 0.75rem;
  color: var(--color-text-muted);
  border: 1px solid var(--color-border);
  padding: 4px 8px;
  border-radius: 999px;
  white-space: nowrap;
}

.worksheet-card-content p {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  line-height: 1.4;
  margin-bottom: 10px;
}

.worksheet-card-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.worksheet-card-badge {
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--color-text-muted);
  background: var(--ws-glass-bg-2);
  border: 1px solid var(--ws-glass-border);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  padding: 4px 8px;
  border-radius: 999px;
}

.worksheet-card-arrow {
  flex-shrink: 0;
  color: var(--color-text-dim);
  transition: transform 0.3s ease, color 0.3s ease;
}

.worksheet-card-btn:hover .worksheet-card-arrow {
  transform: translateX(4px);
  color: var(--module-color, #6366f1);
}

/* -------- Worksheet Modal Shell -------- */

.worksheet-modal {
  position: fixed;
  inset: 0;
  z-index: 1100;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s ease, visibility 0.3s ease;
}

.worksheet-modal.open {
  opacity: 1;
  visibility: visible;
}

.worksheet-modal-overlay {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.82);
  backdrop-filter: blur(8px);
}

.worksheet-modal-content {
  position: relative;
  width: 100%;
  max-width: 1280px;
  max-height: 92vh;
  background: radial-gradient(1200px 600px at 20% 0%, rgba(255,255,255,0.06) 0%, rgba(255,255,255,0.00) 55%),
              radial-gradient(900px 600px at 90% 15%, color-mix(in srgb, var(--module-color, #6366f1) 14%, transparent) 0%, transparent 60%),
              var(--color-bg);
  border: 1px solid var(--ws-glass-border);
  border-radius: var(--radius-xl);
  box-shadow: 0 18px 60px rgba(0,0,0,0.55);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  transform: scale(0.95) translateY(18px);
  transition: transform 0.3s ease;
}

.worksheet-modal.open .worksheet-modal-content {
  transform: scale(1) translateY(0);
}

/* -------- Worksheet Header -------- */

.worksheet-modal-header {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  padding: 22px 26px;
  border-bottom: 1px solid var(--ws-glass-border);
  background: var(--ws-glass-bg);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

.worksheet-modal-icon {
  flex-shrink: 0;
  width: 56px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, #6366f1 0%, #8b5cf6 100%);
  border-radius: var(--radius-lg);
  color: white;
}

.worksheet-modal-icon svg {
  width: 28px;
  height: 28px;
}

.worksheet-modal-title {
  flex: 1;
}

.worksheet-modal-title h2 {
  font-size: 1.45rem;
  font-weight: 800;
  color: var(--color-text);
  margin-bottom: 6px;
}

.worksheet-modal-title p {
  font-size: 0.9rem;
  color: var(--color-text-muted);
  line-height: 1.4;
}

.worksheet-header-actions {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}
.worksheet-control-group {
  display: flex;
  align-items: center;
  gap: 8px;
  padding-left: 6px;
  border-left: 1px solid var(--color-border);
}

.worksheet-control-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 14px;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  background: var(--color-surface-elevated);
  color: var(--color-text);
  font-size: 0.85rem;
  font-weight: 700;
  cursor: pointer;
  transition: transform 0.15s ease, background 0.15s ease, border-color 0.15s ease, box-shadow 0.15s ease;
  box-shadow: 0 6px 18px rgba(0,0,0,0.28);
}

.worksheet-control-btn:hover {
  transform: translateY(-1px);
  background: color-mix(in srgb, var(--color-surface-elevated) 70%, #ffffff 30%);
}

.worksheet-control-btn:active {
  transform: translateY(0px);
}

.worksheet-control-btn:focus-visible {
  outline: none;
  box-shadow: 0 0 0 3px rgba(255,255,255,0.10), 0 0 0 6px rgba(59,130,246,0.35);
}

.worksheet-control-btn.save {
  border-color: rgba(59, 130, 246, 0.55);
  background: linear-gradient(135deg, rgba(59,130,246,0.28) 0%, rgba(59,130,246,0.12) 100%);
}

.worksheet-control-btn.save:hover {
  border-color: rgba(59, 130, 246, 0.85);
}

.worksheet-control-btn.load {
  border-color: rgba(148, 163, 184, 0.45);
  background: linear-gradient(135deg, rgba(148,163,184,0.20) 0%, rgba(148,163,184,0.10) 100%);
}

.worksheet-control-btn.load:hover {
  border-color: rgba(148, 163, 184, 0.75);
}

.worksheet-control-btn.reset {
  border-color: rgba(239, 68, 68, 0.55);
  background: linear-gradient(135deg, rgba(239,68,68,0.24) 0%, rgba(239,68,68,0.10) 100%);
}

.worksheet-control-btn.reset:hover {
  border-color: rgba(239, 68, 68, 0.85);
}

.worksheet-time-estimate {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--color-text-muted);
  font-size: 0.8rem;
  border: 1px solid var(--color-border);
  padding: 8px 10px;
  border-radius: 999px;
  background: var(--color-surface-elevated);
}

.worksheet-export-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 14px;
  background: color-mix(in srgb, var(--module-color, #6366f1) 85%, #000);
  border: 1px solid color-mix(in srgb, var(--module-color, #6366f1) 40%, transparent);
  border-radius: var(--radius-md);
  color: white;
  font-size: 0.85rem;
  font-weight: 700;
  cursor: pointer;
  transition: all 0.2s ease;
}

.worksheet-export-btn:hover {
  transform: translateY(-1px);
  box-shadow: 0 10px 30px color-mix(in srgb, var(--module-color, #6366f1) 35%, transparent);
}

.worksheet-close-btn {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: transparent;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  color: var(--color-text-muted);
  cursor: pointer;
  transition: all 0.2s ease;
}

.worksheet-close-btn:hover {
  background: var(--color-surface-elevated);
  color: var(--color-text);
  border-color: var(--color-border-hover);
}

/* -------- Modal Body Layout -------- */

.worksheet-modal-body {
  flex: 1;
  display: grid;
  grid-template-columns: 320px 1fr;
  min-height: 0;
}

@media (max-width: 980px) {
  .worksheet-modal-body {
    grid-template-columns: 1fr;
  }

  .worksheet-sidebar {
    display: none;
  }
}

.worksheet-sidebar {
  border-right: 1px solid var(--ws-glass-border);
  background: var(--ws-glass-bg-2);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  padding: 18px;
  display: flex;
  flex-direction: column;
  gap: 14px;
  min-height: 0;
}

.worksheet-progress-header {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
}

.worksheet-progress-header h4 {
  font-size: 0.85rem;
  font-weight: 800;
  color: var(--color-text);
  letter-spacing: 0.4px;
}

.worksheet-progress-count {
  font-size: 0.8rem;
  color: var(--color-text-muted);
}

.worksheet-nav {
  display: flex;
  flex-direction: column;
  gap: 8px;
  overflow-y: auto;
  padding-right: 4px;
}

.worksheet-nav-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 12px;
  border-radius: var(--radius-md);
  border: 1px solid var(--ws-glass-border);
  background: var(--ws-glass-bg-2);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  color: var(--color-text-muted);
  cursor: pointer;
  transition: all 0.2s ease;
}

.worksheet-nav-item:hover {
  border-color: var(--color-border-hover);
  background: var(--color-surface-elevated);
  color: var(--color-text);
}

.worksheet-nav-item.active {
  border-color: color-mix(in srgb, var(--module-color, #6366f1) 55%, transparent);
  background: color-mix(in srgb, var(--module-color, #6366f1) 10%, var(--color-surface));
  color: var(--color-text);
}

.worksheet-nav-number {
  width: 22px;
  height: 22px;
  border-radius: 999px;
  background: var(--color-surface-elevated);
  border: 1px solid var(--color-border);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  font-weight: 800;
  color: var(--color-text-muted);
}

.worksheet-nav-item.active .worksheet-nav-number {
  color: white;
  background: color-mix(in srgb, var(--module-color, #6366f1) 80%, #000);
  border-color: color-mix(in srgb, var(--module-color, #6366f1) 60%, transparent);
}

.worksheet-nav-text {
  flex: 1;
  font-size: 0.85rem;
  font-weight: 650;
  text-align: left;
}

.worksheet-nav-status {
  width: 16px;
  height: 16px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: #22c55e;
  opacity: 0.0;
  transition: opacity 0.2s ease;
}

.worksheet-nav-status.complete {
  opacity: 1;
}

.worksheet-disclaimer {
  margin-top: auto;
  display: flex;
  gap: 10px;
  align-items: flex-start;
  padding: 10px 12px;
  border-radius: var(--radius-md);
  background: var(--color-surface-elevated);
  border: 1px solid var(--color-border);
  color: var(--color-text-muted);
  font-size: 0.75rem;
  line-height: 1.35;
}

/* -------- Main Worksheet Content -------- */

.worksheet-content {
  overflow-y: auto;
  padding: 22px 26px;
  min-height: 0;
}

.worksheet-section-header h3 {
  font-size: 1.15rem;
  font-weight: 800;
  color: var(--color-text);
  margin-bottom: 6px;
}

.worksheet-section-header p {
  color: var(--color-text-muted);
  font-size: 0.9rem;
  margin-bottom: 18px;
}

/* Educational blocks */

.worksheet-educational {
  border: 1px solid var(--ws-glass-border);
  border-radius: var(--radius-lg);
  background: var(--ws-glass-bg);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  box-shadow: var(--ws-glass-shadow-soft);
  padding: 16px;
  margin-bottom: 18px;
}

.worksheet-edu-intro,
.worksheet-edu-content {
  color: var(--color-text);
  font-size: 0.9rem;
  margin-bottom: 12px;
}

.worksheet-concepts {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
}

@media (max-width: 980px) {
  .worksheet-concepts {
    grid-template-columns: 1fr;
  }
}

.worksheet-concept-card {
  border: 1px solid var(--ws-glass-border);
  background: var(--ws-glass-bg-2);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-radius: var(--radius-md);
  padding: 12px;
}

.worksheet-concept-card h4 {
  font-size: 0.9rem;
  font-weight: 800;
  margin-bottom: 4px;
  color: var(--color-text);
}

.concept-definition {
  font-size: 0.83rem;
  font-weight: 650;
  color: var(--color-text);
  margin-bottom: 6px;
}

.concept-details {
  font-size: 0.82rem;
  color: var(--color-text-muted);
  line-height: 1.35;
}

/* Code / model items */

.worksheet-edu-items {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.worksheet-code-item,
.worksheet-model-item {
  display: flex;
  gap: 12px;
  border: 1px solid var(--ws-glass-border);
  background: var(--ws-glass-bg-2);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-radius: var(--radius-md);
  padding: 12px;
}

.code-badge {
  width: 54px;
  height: 32px;
  border-radius: var(--radius-md);
  background: color-mix(in srgb, var(--module-color, #6366f1) 18%, transparent);
  color: var(--module-color, #6366f1);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 900;
  font-size: 0.78rem;
  flex-shrink: 0;
  border: 1px solid color-mix(in srgb, var(--module-color, #6366f1) 30%, transparent);
}

.code-info strong,
.worksheet-model-item strong {
  color: var(--color-text);
  font-weight: 800;
}

.code-info p,
.worksheet-model-item p {
  color: var(--color-text-muted);
  font-size: 0.82rem;
  margin-top: 4px;
  margin-bottom: 6px;
  line-height: 1.35;
}

.code-example {
  display: inline-block;
  font-size: 0.78rem;
  padding: 4px 8px;
  background: rgba(0,0,0,0.25);
  border: 1px solid var(--color-border);
  border-radius: 999px;
  color: var(--color-text);
}

/* Comparison table */

.worksheet-comparison-table table {
  width: 100%;
  border-collapse: collapse;
  overflow: hidden;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
}

.worksheet-comparison-table th,
.worksheet-comparison-table td {
  padding: 10px;
  border-bottom: 1px solid var(--color-border);
  font-size: 0.82rem;
  vertical-align: top;
}

.worksheet-comparison-table th {
  text-align: left;
  color: var(--color-text);
  background: var(--color-surface-elevated);
  font-weight: 800;
}

.worksheet-comparison-table td {
  color: var(--color-text-muted);
}

/* Key insight callout */

.worksheet-key-insight {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  padding: 12px 14px;
  border-radius: var(--radius-md);
  background: rgba(245, 158, 11, 0.12);
  border: 1px solid rgba(245, 158, 11, 0.25);
  margin-top: 14px;
}

.worksheet-key-insight p {
  font-size: 0.86rem;
  color: var(--color-text);
  line-height: 1.35;
}

/* Diagrams */

.worksheet-diagram {
  margin-top: 14px;
  border: 1px solid var(--ws-glass-border);
  background: var(--ws-glass-bg);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  box-shadow: var(--ws-glass-shadow-soft);
  border-radius: var(--radius-lg);
  padding: 14px;
}

.worksheet-diagram h4 {
  font-size: 0.9rem;
  font-weight: 800;
  color: var(--color-text);
  margin-bottom: 10px;
}

.reimbursement-pillars .pillars-container {
  display: grid;
  grid-template-columns: 1fr 40px 1fr 40px 1fr;
  gap: 10px;
  align-items: stretch;
}

@media (max-width: 980px) {
  .reimbursement-pillars .pillars-container {
    grid-template-columns: 1fr;
  }
  .pillar-connector {
    display: none;
  }
}

.pillar {
  border: 1px solid var(--ws-glass-border);
  background: var(--ws-glass-bg-2);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-radius: var(--radius-md);
  padding: 12px;
}

.pillar-icon {
  width: 42px;
  height: 42px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  margin-bottom: 10px;
}

.pillar h5 {
  font-size: 0.92rem;
  font-weight: 850;
  margin-bottom: 4px;
  color: var(--color-text);
}

.pillar p {
  font-size: 0.78rem;
  color: var(--color-text-muted);
  margin-bottom: 8px;
}

.pillar ul {
  list-style: none;
  display: grid;
  gap: 4px;
}

.pillar li {
  font-size: 0.78rem;
  color: var(--color-text-muted);
  padding-left: 12px;
  position: relative;
}

.pillar li::before {
  content: "•";
  position: absolute;
  left: 0;
  color: var(--module-color, #6366f1);
}

.pillar-connector {
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  color: var(--color-text-dim);
}

/* Coverage hierarchy */

.coverage-hierarchy .hierarchy-flow {
  display: grid;
  gap: 8px;
  justify-items: center;
  margin-top: 8px;
}

.hierarchy-item {
  width: 100%;
  border: 1px solid var(--ws-glass-border);
  background: var(--ws-glass-bg-2);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-radius: var(--radius-md);
  padding: 12px;
}

.hierarchy-item strong {
  color: var(--color-text);
  font-weight: 850;
}

.hierarchy-item p {
  color: var(--color-text-muted);
  font-size: 0.82rem;
  margin-top: 4px;
}

.hierarchy-arrow {
  color: var(--color-text-dim);
  font-size: 1.4rem;
}

.hierarchy-note {
  margin-top: 10px;
  font-size: 0.8rem;
  color: var(--color-text-muted);
}

/* -------- Fields -------- */

.worksheet-fields {
  display: grid;
  gap: 14px;
  margin-bottom: 18px;
}

.worksheet-field label {
  display: block;
  font-size: 0.85rem;
  font-weight: 800;
  color: var(--color-text);
  margin-bottom: 6px;
}

.worksheet-field input[type="text"],
.worksheet-field textarea,
.worksheet-field select {
  width: 100%;
  padding: 12px 12px;
  background: var(--ws-glass-bg-2);
  border: 1px solid var(--ws-glass-border);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-radius: var(--radius-md);
  color: var(--color-text);
  font-size: 0.9rem;
  outline: none;
  transition: border-color 0.2s ease, background 0.2s ease;
}

.worksheet-field textarea {
  resize: vertical;
}

.worksheet-field input[type="text"]:focus,
.worksheet-field textarea:focus,
.worksheet-field select:focus {
  border-color: color-mix(in srgb, var(--module-color, #6366f1) 65%, transparent);
  background: linear-gradient(
    145deg,
    color-mix(in srgb, var(--module-color, #6366f1) 10%, rgba(255,255,255,0.04)) 0%,
    rgba(255,255,255,0.01) 100%
  );
}

.worksheet-field-help {
  display: block;
  margin-top: 6px;
  font-size: 0.78rem;
  color: var(--color-text-muted);
  line-height: 1.3;
}

/* Code tables */

.worksheet-code-table table {
  width: 100%;
  border-collapse: collapse;
  border: 1px solid var(--ws-glass-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  background: var(--ws-glass-bg);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

.worksheet-code-table th,
.worksheet-code-table td {
  padding: 10px;
  border-bottom: 1px solid var(--color-border);
  font-size: 0.82rem;
}

.worksheet-code-table th {
  background: var(--color-surface-elevated);
  text-align: left;
  color: var(--color-text);
  font-weight: 800;
}

.worksheet-code-table td input {
  width: 100%;
  padding: 10px;
  background: rgba(0,0,0,0.22);
  border: 1px solid var(--ws-glass-border);
  border-radius: var(--radius-md);
  color: var(--color-text);
}

.code-table-add {
  margin-top: 10px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 12px;
  background: var(--color-surface-elevated);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  color: var(--color-text);
  cursor: pointer;
  font-weight: 750;
  transition: all 0.2s ease;
}

.code-table-add:hover {
  border-color: var(--color-border-hover);
  transform: translateY(-1px);
}

.code-table-remove {
  width: 30px;
  height: 30px;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  background: transparent;
  color: var(--color-text-muted);
  cursor: pointer;
  transition: all 0.2s ease;
}

.code-table-remove:hover {
  background: rgba(239, 68, 68, 0.12);
  border-color: rgba(239, 68, 68, 0.35);
  color: #ef4444;
}

/* -------- Resources -------- */

.worksheet-resources {
  border: 1px solid var(--ws-glass-border);
  border-radius: var(--radius-lg);
  background: var(--ws-glass-bg);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  box-shadow: var(--ws-glass-shadow-soft);
  padding: 16px;
  margin-bottom: 18px;
}

.worksheet-resources h4 {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.95rem;
  font-weight: 850;
  color: var(--color-text);
  margin-bottom: 12px;
}

.worksheet-resources-list {
  display: grid;
  gap: 10px;
}

.worksheet-resource-link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  text-decoration: none;
  padding: 12px 14px;
  border-radius: var(--radius-md);
  background: var(--ws-glass-bg-2);
  border: 1px solid var(--ws-glass-border);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  transition: all 0.2s ease;
  color: var(--color-text);
}

.worksheet-resource-link:hover {
  border-color: color-mix(in srgb, var(--module-color, #6366f1) 55%, transparent);
  transform: translateY(-1px);
}

.resource-info strong {
  display: block;
  font-weight: 850;
  font-size: 0.88rem;
  color: var(--color-text);
}

.resource-info span {
  display: block;
  font-size: 0.78rem;
  color: var(--color-text-muted);
  margin-top: 2px;
}

/* -------- Section Navigation Buttons -------- */

.worksheet-section-nav {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  margin-top: 18px;
}

.worksheet-nav-btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 12px 14px;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  background: var(--color-surface-elevated);
  color: var(--color-text);
  cursor: pointer;
  font-weight: 800;
  transition: all 0.2s ease;
}

.worksheet-nav-btn:hover {
  border-color: var(--color-border-hover);
  transform: translateY(-1px);
}

.worksheet-nav-btn.next,
.worksheet-nav-btn.complete {
  background: color-mix(in srgb, var(--module-color, #6366f1) 85%, #000);
  border-color: color-mix(in srgb, var(--module-color, #6366f1) 50%, transparent);
}

.worksheet-nav-btn.next:hover,
.worksheet-nav-btn.complete:hover {
  box-shadow: 0 12px 34px color-mix(in srgb, var(--module-color, #6366f1) 35%, transparent);
}

/* ========================================
   WORKSHEET UI (NEW IN worksheets.js)
   Checkbox groups • Confidence panels • Matrix tables
   ======================================== */

/* Checkbox group (used by checkbox-group + confidence-panel missing inputs) */
.worksheet-checkbox-group {
  display: grid;
  gap: 10px;
}

.worksheet-checkbox {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 12px 12px;
  border-radius: var(--radius-md);
  border: 1px solid var(--ws-glass-border);
  background: var(--ws-glass-bg-2);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  color: var(--color-text);
  cursor: pointer;
  transition: transform 0.15s ease, border-color 0.15s ease, background 0.15s ease;
}

.worksheet-checkbox:hover {
  transform: translateY(-1px);
  border-color: var(--ws-glass-border-strong);
}

.worksheet-checkbox input {
  margin-top: 3px;
}

.worksheet-checkbox span {
  font-size: 0.84rem;
  color: var(--color-text-muted);
  line-height: 1.35;
}

/* Confidence panel wrapper */
.worksheet-confidence-panel {
  border: 1px solid var(--ws-glass-border);
  background: var(--ws-glass-bg);
  border-radius: var(--radius-lg);
  padding: 14px;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  box-shadow: var(--ws-glass-shadow-soft);
}

.worksheet-confidence-row {
  display: grid;
  grid-template-columns: 1fr 320px;
  align-items: center;
  gap: 12px;
  padding-bottom: 12px;
  border-bottom: 1px solid rgba(255,255,255,0.07);
  margin-bottom: 12px;
}

@media (max-width: 980px) {
  .worksheet-confidence-row {
    grid-template-columns: 1fr;
  }
}

.worksheet-confidence-label {
  font-size: 0.86rem;
  font-weight: 900;
  color: var(--color-text);
}

.worksheet-confidence-row select {
  width: 100%;
}

.worksheet-confidence-missing .worksheet-confidence-label {
  margin-bottom: 10px;
}

/* Matrix table wrapper already exists in base styles; reinforce the glass look */
.worksheet-matrix {
  border: 1px solid var(--ws-glass-border);
  background: var(--ws-glass-bg);
  border-radius: var(--radius-lg);
  overflow: hidden;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  box-shadow: var(--ws-glass-shadow-soft);
}

.worksheet-matrix-table th {
  background: rgba(0,0,0,0.18);
}

.worksheet-matrix-table td input {
  background: rgba(0,0,0,0.20);
  border: 1px solid var(--ws-glass-border);
}

/* ========================================
   NEW: Educational titles + bullets/steps
   ======================================== */

.worksheet-edu-title{
  font-size: 0.95rem;
  font-weight: 900;
  color: var(--color-text);
  margin-bottom: 10px;
  letter-spacing: 0.2px;
}

.worksheet-edu-bullets ul,
.worksheet-edu-steps ol{
  margin: 10px 0 0 0;
  padding-left: 18px;
  color: var(--color-text-muted);
}

.worksheet-edu-bullets li,
.worksheet-edu-steps li{
  margin: 8px 0;
  line-height: 1.35;
  font-size: 0.85rem;
}

.worksheet-edu-steps .edu-step-title{
  font-weight: 850;
  color: var(--color-text);
  margin-bottom: 2px;
}

.worksheet-edu-steps .edu-step-desc{
  color: var(--color-text-muted);
  font-size: 0.82rem;
}

/* ========================================
   NEW: Confidence rating + missing inputs panel
   Glass card vibe (matches calculators.css feel)
   ======================================== */

.worksheet-confidence-panel{
  border: 1px solid color-mix(in srgb, var(--color-border) 85%, transparent);
  background: color-mix(in srgb, var(--color-surface) 78%, transparent);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border-radius: var(--radius-lg);
  padding: 14px;
  box-shadow: 0 10px 28px rgba(0,0,0,0.25);
}

.confidence-grid{
  display: grid;
  grid-template-columns: 1.1fr 1.5fr;
  gap: 12px;
  align-items: start;
}

@media (max-width: 980px){
  .confidence-grid{ grid-template-columns: 1fr; }
}

.confidence-col label{
  display: block;
  font-size: 0.78rem;
  font-weight: 900;
  color: var(--color-text);
  margin-bottom: 6px;
  letter-spacing: 0.3px;
}

.confidence-col select{
  width: 100%;
  padding: 10px 12px;
  background: color-mix(in srgb, var(--color-surface-elevated) 80%, transparent);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  color: var(--color-text);
  outline: none;
}

.confidence-checklist{
  display: grid;
  gap: 8px;
}

.confidence-check{
  display: flex;
  gap: 10px;
  align-items: flex-start;
  padding: 10px 10px;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  background: color-mix(in srgb, var(--color-surface-elevated) 72%, transparent);
}

.confidence-check input{
  margin-top: 2px;
  accent-color: var(--module-color, #6366f1);
}

.confidence-check span{
  color: var(--color-text-muted);
  font-size: 0.82rem;
  line-height: 1.25;
}

.confidence-summary{
  margin-top: 12px;
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  align-items: center;
  color: var(--color-text-muted);
  font-size: 0.8rem;
}

.confidence-pill{
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 7px 10px;
  border-radius: 999px;
  border: 1px solid color-mix(in srgb, var(--module-color, #6366f1) 40%, var(--color-border));
  background: color-mix(in srgb, var(--module-color, #6366f1) 10%, transparent);
  color: var(--color-text);
  font-weight: 800;
}

/* ========================================
   NEW: Worksheet toast (snapshot saved, etc.)
   ======================================== */

.worksheet-toast{
  position: fixed;
  right: 18px;
  top: 18px;
  z-index: 2000;
  padding: 12px 14px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  background: color-mix(in srgb, var(--color-surface) 80%, transparent);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  color: var(--color-text);
  box-shadow: 0 12px 34px rgba(0,0,0,0.35);
  font-weight: 800;
  font-size: 0.85rem;
}