/* TestEdge Practice Lab — modern theme (scoped) */
.practice-page {
  min-height: 100vh;
  background: #0B0F19;
  font-family: "Plus Jakarta Sans", system-ui, sans-serif;
  color: #E2E8F0;
}

/* ── Top bar ── */
.practice-topbar {
  background: rgba(255,255,255,.06);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(255,255,255,.1);
  padding: .85rem 0;
}
.practice-topbar a {
  color: #E2E8F0 !important;
  text-decoration: none;
  font-weight: 600;
  font-size: .9rem;
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  transition: color .2s;
}
.practice-topbar a:hover { color: #A5B4FC !important; }
.practice-topbar img { filter: brightness(0) invert(1); opacity: .95; }

/* ── Page header ── */
.practice-banner {
  background: transparent;
  padding: 2rem 0 1.25rem;
  text-align: left;
}
.practice-banner h1 {
  font-size: clamp(1.75rem, 3vw, 2.25rem);
  font-weight: 800;
  color: #FFFFFF !important;
  -webkit-text-fill-color: #FFFFFF !important;
  margin: 0 0 .35rem;
  letter-spacing: -.02em;
}
.practice-banner p {
  color: #94A3B8 !important;
  margin: 0;
  font-weight: 500;
  font-size: .95rem;
}
.practice-banner .module-badge {
  display: inline-block;
  background: rgba(99,102,241,.2);
  border: 1px solid rgba(129,140,248,.4);
  color: #C7D2FE;
  font-size: .72rem;
  font-weight: 700;
  padding: .3rem .75rem;
  border-radius: 999px;
  margin-bottom: .75rem;
  text-transform: uppercase;
  letter-spacing: .06em;
}

.practice-layout { padding: 0 0 3rem; }

/* ── Sidebar ── */
.practice-sidebar {
  background: rgba(255,255,255,.06);
  backdrop-filter: blur(12px);
  border: 1px solid rgba(255,255,255,.12);
  border-radius: 20px;
  overflow: hidden;
  box-shadow: 0 20px 50px rgba(0,0,0,.3);
}
.practice-sidebar .accordion-item {
  background: transparent;
  border: none;
  border-bottom: 1px solid rgba(255,255,255,.08);
}
.practice-sidebar .accordion-item:last-child { border-bottom: none; }
.practice-sidebar .accordion-button {
  background: transparent !important;
  color: #F1F5F9 !important;
  font-weight: 700;
  font-size: .88rem;
  padding: 1rem 1.15rem;
  box-shadow: none !important;
}
.practice-sidebar .accordion-button:not(.collapsed) {
  background: rgba(99,102,241,.15) !important;
  color: #FFFFFF !important;
}
.practice-sidebar .accordion-button::after {
  filter: brightness(0) invert(1);
  opacity: .7;
}
.practice-sidebar .accordion-body {
  background: rgba(0,0,0,.15);
  padding: .75rem 1rem 1rem;
}
.practice-sidebar .cat-icon {
  width: 32px;
  height: 32px;
  border-radius: 8px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-right: .65rem;
  font-size: .85rem;
  color: #fff;
}
.practice-sidebar .cat-icon.elements { background: linear-gradient(135deg, #6366F1, #818CF8); }
.practice-sidebar .cat-icon.alerts { background: linear-gradient(135deg, #F43F5E, #FB7185); }
.practice-sidebar .cat-icon.widgets { background: linear-gradient(135deg, #06B6D4, #22D3EE); }
.practice-sidebar .cat-icon.interactions { background: linear-gradient(135deg, #10B981, #34D399); }

.practice-nav-link {
  display: block;
  width: 100%;
  text-align: left;
  padding: .6rem .85rem;
  margin-bottom: .4rem;
  border: none;
  border-radius: 10px;
  background: rgba(255,255,255,.08);
  color: #CBD5E1 !important;
  font-family: inherit;
  font-weight: 600;
  font-size: .82rem;
  cursor: pointer;
  transition: all .2s;
}
.practice-nav-link:hover {
  background: rgba(99,102,241,.25);
  color: #FFFFFF !important;
  transform: translateX(3px);
}
.practice-nav-link.active {
  background: linear-gradient(135deg, #6366F1, #818CF8);
  color: #FFFFFF !important;
  box-shadow: 0 6px 20px rgba(99,102,241,.4);
}

/* ── Main content panel — force readable dark text on white ── */
.practice-content {
  background: #FFFFFF;
  border-radius: 20px;
  padding: 2rem 2.25rem;
  min-height: 560px;
  box-shadow: 0 24px 64px rgba(0,0,0,.35);
  color: #0F172A;
}
.practice-content .tab-pane { color: #0F172A; }
.practice-content .tab-pane:not(.show) { display: none !important; }
.practice-content .tab-pane.show {
  display: block !important;
  animation: practiceFade .3s ease;
}
@keyframes practiceFade {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

.practice-content h3,
.practice-content h4,
.practice-content h5 {
  color: #0F172A !important;
  font-weight: 800;
  margin-bottom: 1.25rem;
  padding-bottom: .65rem;
  border-bottom: 3px solid #6366F1;
  display: inline-block;
}
.practice-content p,
.practice-content li,
.practice-content label,
.practice-content .form-label {
  color: #334155 !important;
  font-weight: 500;
}
.practice-content .form-label { font-weight: 700 !important; font-size: .85rem; margin-bottom: .35rem; }
.practice-content .text-muted { color: #64748B !important; }
.practice-content .text-success { color: #059669 !important; font-weight: 600; }
.practice-content a { color: #6366F1; font-weight: 600; }
.practice-content a:hover { color: #4F46E5; }

.practice-content .form-control,
.practice-content .form-select,
.practice-content textarea,
.practice-content input[type="text"],
.practice-content input[type="email"],
.practice-content input[type="date"],
.practice-content input[type="file"] {
  background: #F8FAFC !important;
  border: 1.5px solid #E2E8F0 !important;
  color: #0F172A !important;
  border-radius: 12px;
  padding: .7rem 1rem;
  font-weight: 600;
  font-family: inherit;
}
.practice-content .form-control:focus,
.practice-content .form-select:focus {
  border-color: #6366F1 !important;
  box-shadow: 0 0 0 3px rgba(99,102,241,.15) !important;
  outline: none;
}
.practice-content .form-check-label { color: #334155 !important; font-weight: 600; cursor: pointer; }

.practice-content .btn-primary {
  background: linear-gradient(135deg, #6366F1, #818CF8) !important;
  border: none !important;
  color: #fff !important;
  font-weight: 700;
  border-radius: 999px;
  padding: .65rem 1.35rem;
  box-shadow: 0 8px 24px rgba(99,102,241,.3);
}
.practice-content .btn-primary:hover { transform: translateY(-2px); }
.practice-content .btn-warning { color: #0F172A !important; font-weight: 700; border-radius: 999px; }
.practice-content .btn-info,
.practice-content .btn-secondary { font-weight: 700; border-radius: 999px; color: #fff !important; }
.practice-content .btn-success { font-weight: 700; border-radius: 999px; }

/* Output panel */
.practice-output {
  background: linear-gradient(135deg, #ECFDF5, #EFF6FF);
  border: 1px solid #BBF7D0;
  border-radius: 16px;
  padding: 1.5rem;
  height: 100%;
}
.practice-output h5 { color: #0F172A !important; border: none !important; padding: 0; display: block; }
.practice-output .label { color: #059669 !important; font-weight: 700; }
.practice-output p { color: #334155 !important; margin-bottom: .5rem; }

/* Table */
.practice-content .demo-table { border-radius: 14px; overflow: hidden; border: 1px solid #E2E8F0; }
.practice-content .demo-table thead {
  background: linear-gradient(135deg, #6366F1, #818CF8);
  color: #fff;
}
.practice-content .demo-table thead th {
  color: #fff !important;
  font-weight: 700;
  font-size: .8rem;
  border: none;
  padding: .85rem 1rem;
}
.practice-content .demo-table tbody td {
  color: #334155 !important;
  font-weight: 600;
  padding: .75rem 1rem;
  border-color: #F1F5F9;
  vertical-align: middle;
}
.practice-content .demo-table tbody tr:hover { background: #F8FAFC; }
.action-icon { cursor: pointer; padding: .35rem .5rem; border-radius: 8px; transition: .2s; }
.action-icon:hover { background: rgba(99,102,241,.1); }

/* Slider & progress */
.range-wrap { display: flex; align-items: center; gap: 1rem; margin: 1rem 0; }
.range-wrap input[type=range] { flex: 1; accent-color: #6366F1; height: 6px; }
.range-val {
  background: linear-gradient(135deg, #6366F1, #818CF8);
  color: #fff;
  padding: .4rem .85rem;
  border-radius: 10px;
  font-weight: 800;
  min-width: 48px;
  text-align: center;
}
.progress-demo {
  height: 32px;
  border-radius: 999px;
  background: #E2E8F0;
  overflow: hidden;
  margin-bottom: 1rem;
}
.progress-demo .bar {
  height: 100%;
  background: linear-gradient(90deg, #6366F1, #06B6D4);
  border-radius: 999px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-weight: 700;
  font-size: .8rem;
  transition: width .3s;
}

/* Interactions */
.dynamic-hidden { color: #CBD5E1 !important; }
.dynamic-visible { color: #DC2626 !important; font-weight: 800 !important; font-size: 1.05rem !important; }
.selectable-item {
  padding: .85rem 1rem;
  border: 2px solid #E2E8F0;
  border-radius: 12px;
  margin-bottom: .5rem;
  cursor: pointer;
  font-weight: 600;
  color: #334155 !important;
  background: #F8FAFC;
  transition: .2s;
}
.selectable-item:hover { border-color: #6366F1; }
.selectable-item.selected {
  background: linear-gradient(135deg, #6366F1, #818CF8);
  color: #fff !important;
  border-color: transparent;
}
.sortable-list { list-style: none; padding: 0; margin: 0; }
.sortable-list li {
  padding: 1rem 1.15rem;
  margin-bottom: .5rem;
  background: #F8FAFC;
  border: 2px solid #E2E8F0;
  border-radius: 12px;
  cursor: grab;
  font-weight: 600;
  color: #334155 !important;
}
.sortable-list li:hover { border-color: #6366F1; box-shadow: 0 4px 12px rgba(99,102,241,.12); }
.resize-box {
  resize: both;
  overflow: auto;
  border: 3px solid #6366F1;
  background: linear-gradient(135deg, #6366F1, #818CF8);
  color: #fff;
  width: 200px;
  height: 200px;
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
}
.drop-zone {
  border: 2px dashed #6366F1;
  border-radius: 16px;
  padding: 2.5rem;
  text-align: center;
  background: #F8FAFC;
  color: #64748B !important;
  font-weight: 600;
  min-height: 120px;
  transition: .2s;
}
.drop-zone.over { background: #EEF2FF; border-color: #4F46E5; }
.drag-item {
  display: inline-block;
  padding: .85rem 1.5rem;
  background: linear-gradient(135deg, #6366F1, #818CF8);
  color: #fff !important;
  border-radius: 12px;
  cursor: grab;
  font-weight: 700;
}

/* Menu bar demo */
#practiceMenuBar {
  background: #1E293B;
  border-radius: 12px;
  padding: 0;
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  margin: 0;
}
#practiceMenuBar > li {
  position: relative;
  padding: .85rem 1.15rem;
  color: #F1F5F9 !important;
  cursor: pointer;
  font-weight: 600;
}
#practiceMenuBar > li:hover { background: #6366F1; }
#practiceMenuBar > li ul {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  background: #fff;
  min-width: 180px;
  border-radius: 0 0 12px 12px;
  box-shadow: 0 12px 32px rgba(0,0,0,.15);
  padding: .35rem 0;
  list-style: none;
  z-index: 10;
}
#practiceMenuBar > li:hover > ul { display: block; }
#practiceMenuBar > li ul li {
  padding: .5rem 1rem;
  color: #334155 !important;
  font-weight: 600;
}
#practiceMenuBar > li ul li:hover { background: #EEF2FF; color: #6366F1 !important; }

iframe.practice-frame {
  width: 100%;
  min-height: 380px;
  border: 1px solid #E2E8F0;
  border-radius: 14px;
  background: #F8FAFC;
}

.practice-content .nav-tabs { border-bottom: 2px solid #E2E8F0; gap: .25rem; }
.practice-content .nav-tabs .nav-link {
  color: #64748B !important;
  font-weight: 700;
  border: none;
  border-radius: 10px 10px 0 0;
}
.practice-content .nav-tabs .nav-link.active {
  color: #6366F1 !important;
  background: #EEF2FF;
}

.practice-content .accordion-button { color: #0F172A !important; background: #F8FAFC !important; font-weight: 700; }
.practice-content .accordion-body { color: #334155 !important; }

#alert-result, #link-response, #radio-content, #double-content, #right-content, #click-content {
  color: #059669 !important;
  font-weight: 600;
}

@media (max-width: 991px) {
  .practice-content { padding: 1.25rem; min-height: auto; }
  .practice-sidebar { margin-bottom: 1rem; }
}
/* ── Lab component system ── */
.practice-content .lab-header {
  margin-bottom: 1.75rem;
  padding-bottom: 1.25rem;
  border-bottom: 1px solid #E2E8F0;
}
.practice-content .lab-tag {
  display: inline-block;
  background: linear-gradient(135deg, rgba(99,102,241,.12), rgba(6,182,212,.1));
  border: 1px solid rgba(99,102,241,.25);
  color: #6366F1;
  font-size: .68rem;
  font-weight: 800;
  padding: .28rem .7rem;
  border-radius: 999px;
  text-transform: uppercase;
  letter-spacing: .07em;
  margin-bottom: .6rem;
}
.practice-content .lab-header h3 {
  color: #0F172A !important;
  font-size: 1.45rem;
  font-weight: 800;
  margin: 0 0 .35rem;
  letter-spacing: -.02em;
}
.practice-content .lab-header p {
  color: #64748B !important;
  margin: 0;
  font-weight: 500;
  font-size: .92rem;
}

.practice-content .lab-grid-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.25rem;
}
@media (max-width: 768px) {
  .practice-content .lab-grid-2 { grid-template-columns: 1fr; }
}

.practice-content .lab-card {
  background: #F8FAFC;
  border: 1px solid #E2E8F0;
  border-radius: 18px;
  padding: 1.35rem 1.5rem;
  transition: .2s;
}
.practice-content .lab-card:hover {
  border-color: rgba(99,102,241,.25);
  box-shadow: 0 8px 28px rgba(99,102,241,.08);
}
.practice-content .lab-card-title {
  display: flex;
  align-items: center;
  gap: .5rem;
  font-weight: 800;
  color: #0F172A !important;
  font-size: .88rem;
  margin-bottom: 1rem;
  text-transform: uppercase;
  letter-spacing: .04em;
}
.practice-content .lab-card-title i { color: #6366F1; }

.practice-content .lab-label {
  display: block;
  font-size: .72rem;
  font-weight: 700;
  color: #64748B !important;
  text-transform: uppercase;
  letter-spacing: .05em;
  margin-bottom: .35rem;
}
.practice-content .lab-input {
  width: 100%;
  padding: .72rem 1rem;
  border: 1.5px solid #E2E8F0;
  border-radius: 12px;
  font-family: inherit;
  font-weight: 600;
  font-size: .9rem;
  color: #0F172A !important;
  background: #fff;
  margin-bottom: .85rem;
  transition: .2s;
}
.practice-content .lab-input:focus {
  outline: none;
  border-color: #6366F1;
  box-shadow: 0 0 0 3px rgba(99,102,241,.12);
}
.practice-content .lab-btn {
  display: inline-flex;
  align-items: center;
  gap: .45rem;
  padding: .72rem 1.35rem;
  border: none;
  border-radius: 999px;
  background: linear-gradient(135deg, #6366F1, #818CF8);
  color: #fff !important;
  font-family: inherit;
  font-weight: 700;
  font-size: .85rem;
  cursor: pointer;
  transition: .2s;
  box-shadow: 0 6px 20px rgba(99,102,241,.3);
  text-decoration: none;
}
.practice-content .lab-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 28px rgba(99,102,241,.38);
}
.practice-content .lab-btn.dl { margin-top: .5rem; }
.practice-content .lab-hint {
  color: #94A3B8 !important;
  font-size: .82rem;
  font-weight: 500;
  margin: .5rem 0 0;
}

.practice-content .lab-output-card { background: #fff; }
.practice-content .practice-output p {
  color: #334155 !important;
  margin: 0 0 .65rem;
  font-weight: 500;
}
.practice-content .practice-output .label {
  color: #6366F1 !important;
  font-weight: 700;
  font-size: .78rem;
  text-transform: uppercase;
  letter-spacing: .04em;
}

/* Checkboxes */
.practice-content .check-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: .85rem;
}
@media (max-width: 576px) {
  .practice-content .check-grid { grid-template-columns: 1fr; }
}
.practice-content .check-card {
  display: flex;
  align-items: flex-start;
  gap: .85rem;
  padding: 1rem 1.15rem;
  background: #fff;
  border: 2px solid #E2E8F0;
  border-radius: 16px;
  cursor: pointer;
  transition: .2s;
  margin: 0;
}
.practice-content .check-card:hover {
  border-color: #6366F1;
  box-shadow: 0 6px 20px rgba(99,102,241,.1);
}
.practice-content .check-card input { position: absolute; opacity: 0; pointer-events: none; }
.practice-content .check-box {
  width: 22px;
  height: 22px;
  border: 2px solid #CBD5E1;
  border-radius: 7px;
  flex-shrink: 0;
  margin-top: 2px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: .2s;
  background: #fff;
}
.practice-content .check-card input:checked + .check-box {
  background: linear-gradient(135deg, #6366F1, #818CF8);
  border-color: transparent;
}
.practice-content .check-card input:checked + .check-box::after {
  content: "\2713";
  color: #fff;
  font-size: .75rem;
  font-weight: 800;
}
.practice-content .check-text strong {
  display: block;
  color: #0F172A !important;
  font-size: .92rem;
  margin-bottom: .15rem;
}
.practice-content .check-text small {
  color: #64748B !important;
  font-size: .78rem;
  font-weight: 500;
}
.practice-content .check-card.disabled {
  opacity: .55;
  cursor: not-allowed;
  background: #F1F5F9;
}

/* Radio buttons */
.practice-content .radio-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: .85rem;
  margin-bottom: 1.25rem;
}
@media (max-width: 768px) {
  .practice-content .radio-grid { grid-template-columns: 1fr; }
}
.practice-content .radio-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: 1.25rem 1rem;
  background: #fff;
  border: 2px solid #E2E8F0;
  border-radius: 18px;
  cursor: pointer;
  transition: .2s;
  margin: 0;
}
.practice-content .radio-card:hover { border-color: #6366F1; }
.practice-content .radio-card input { position: absolute; opacity: 0; }
.practice-content .radio-dot {
  width: 20px;
  height: 20px;
  border: 2px solid #CBD5E1;
  border-radius: 50%;
  margin-bottom: .65rem;
  transition: .2s;
  position: relative;
}
.practice-content .radio-card input:checked ~ .radio-dot {
  border-color: #6366F1;
  box-shadow: inset 0 0 0 4px #6366F1;
}
.practice-content .radio-card:has(input:checked) {
  border-color: #6366F1;
  background: linear-gradient(180deg, #EEF2FF, #fff);
  box-shadow: 0 8px 24px rgba(99,102,241,.12);
}
.practice-content .radio-text strong {
  display: block;
  color: #0F172A !important;
  font-size: .95rem;
}
.practice-content .radio-text small {
  color: #64748B !important;
  font-size: .78rem;
}

/* Demo buttons */
.practice-content .btn-demo-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
  margin-bottom: 1.25rem;
}
@media (max-width: 768px) {
  .practice-content .btn-demo-grid { grid-template-columns: 1fr; }
}
.practice-content .demo-btn {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: .35rem;
  padding: 1.35rem 1rem;
  border: none;
  border-radius: 18px;
  cursor: pointer;
  font-family: inherit;
  transition: .25s;
  color: #fff !important;
}
.practice-content .demo-btn i { font-size: 1.5rem; margin-bottom: .25rem; }
.practice-content .demo-btn span { font-weight: 800; font-size: .95rem; }
.practice-content .demo-btn small { opacity: .85; font-size: .72rem; font-weight: 600; }
.practice-content .demo-btn.dbl {
  background: linear-gradient(135deg, #6366F1, #818CF8);
  box-shadow: 0 8px 24px rgba(99,102,241,.35);
}
.practice-content .demo-btn.ctx {
  background: linear-gradient(135deg, #06B6D4, #22D3EE);
  box-shadow: 0 8px 24px rgba(6,182,212,.35);
}
.practice-content .demo-btn.clk {
  background: linear-gradient(135deg, #10B981, #34D399);
  box-shadow: 0 8px 24px rgba(16,185,129,.35);
}
.practice-content .demo-btn.warn {
  background: linear-gradient(135deg, #F59E0B, #FBBF24);
  box-shadow: 0 8px 24px rgba(245,158,11,.35);
}
.practice-content .demo-btn.info {
  background: linear-gradient(135deg, #06B6D4, #22D3EE);
  box-shadow: 0 8px 24px rgba(6,182,212,.35);
}
.practice-content .demo-btn.muted {
  background: linear-gradient(135deg, #64748B, #94A3B8);
  box-shadow: 0 8px 24px rgba(100,116,139,.3);
}
.practice-content .demo-btn:hover { transform: translateY(-3px); }

/* Feedback */
.practice-content .feedback-box,
.practice-content .feedback-item {
  background: #ECFDF5;
  border: 1px solid #A7F3D0;
  border-radius: 14px;
  padding: 1rem 1.15rem;
  color: #059669 !important;
  font-weight: 600;
  min-height: 48px;
}
.practice-content .feedback-box:empty,
.practice-content .feedback-item:empty { display: none; }
.practice-content .feedback-stack { display: flex; flex-direction: column; gap: .65rem; }
.practice-content .feedback-box i { margin-right: .35rem; }

/* Links section */
.practice-content .link-section {
  background: #F8FAFC;
  border: 1px solid #E2E8F0;
  border-radius: 16px;
  padding: 1.15rem 1.25rem;
  margin-bottom: 1rem;
}
.practice-content .link-section h5 {
  color: #0F172A !important;
  font-size: .85rem;
  font-weight: 800;
  margin: 0 0 .75rem;
  display: flex;
  align-items: center;
  gap: .45rem;
}
.practice-content .link-section h5 i { color: #6366F1; }
.practice-content .link-pill {
  display: inline-flex;
  align-items: center;
  gap: .45rem;
  padding: .65rem 1.15rem;
  background: #fff;
  border: 2px solid #E2E8F0;
  border-radius: 999px;
  color: #6366F1 !important;
  font-weight: 700;
  text-decoration: none;
  transition: .2s;
}
.practice-content .link-pill:hover {
  border-color: #6366F1;
  background: #EEF2FF;
}
.practice-content .api-link-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: .65rem;
}
@media (max-width: 576px) {
  .practice-content .api-link-grid { grid-template-columns: 1fr; }
}
.practice-content .api-link {
  display: flex;
  align-items: center;
  gap: .65rem;
  padding: .75rem 1rem;
  background: #fff;
  border: 1.5px solid #E2E8F0;
  border-radius: 12px;
  text-decoration: none;
  font-weight: 700;
  color: #334155 !important;
  transition: .2s;
}
.practice-content .api-link:hover { border-color: #6366F1; background: #EEF2FF; }
.practice-content .api-link .code {
  background: #E2E8F0;
  color: #475569 !important;
  padding: .2rem .5rem;
  border-radius: 6px;
  font-size: .75rem;
  font-weight: 800;
  font-family: ui-monospace, monospace;
}
.practice-content .api-link.ok .code { background: #D1FAE5; color: #059669 !important; }
.practice-content .api-link.warn .code { background: #FEF3C7; color: #D97706 !important; }
.practice-content .api-link.err .code { background: #FEE2E2; color: #DC2626 !important; }

/* Table enhancements */
.practice-content .td-avatar {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border-radius: 8px;
  color: #fff;
  font-size: .65rem;
  font-weight: 800;
  margin-right: .5rem;
  vertical-align: middle;
}
.practice-content .td-avatar.am { background: linear-gradient(135deg, #6366F1, #818CF8); }
.practice-content .td-avatar.ps { background: linear-gradient(135deg, #06B6D4, #22D3EE); }
.practice-content .td-avatar.rv { background: linear-gradient(135deg, #F43F5E, #FB7185); }
.practice-content .salary-badge {
  background: #ECFDF5;
  color: #059669 !important;
  padding: .2rem .55rem;
  border-radius: 6px;
  font-weight: 800;
  font-size: .82rem;
}
.practice-content .dept-pill {
  background: #EEF2FF;
  color: #6366F1 !important;
  padding: .2rem .55rem;
  border-radius: 999px;
  font-weight: 700;
  font-size: .75rem;
}
.practice-content .dept-pill.auto { background: #CFFAFE; color: #0891B2 !important; }
.practice-content .icon-btn {
  border: none;
  background: transparent;
  padding: .4rem .55rem;
  border-radius: 8px;
  cursor: pointer;
  transition: .2s;
}
.practice-content .icon-btn.edit { color: #6366F1; }
.practice-content .icon-btn.del { color: #F43F5E; }
.practice-content .icon-btn:hover { background: rgba(99,102,241,.1); }

/* Form grid */
.practice-content .lab-form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0 .85rem;
}
.practice-content .lab-field.full { grid-column: 1 / -1; }

/* Upload / download */
.practice-content .upload-zone,
.practice-content .download-zone {
  text-align: center;
  padding: 2rem 1.5rem !important;
}
.practice-content .upload-icon {
  width: 56px;
  height: 56px;
  border-radius: 16px;
  background: linear-gradient(135deg, rgba(99,102,241,.12), rgba(6,182,212,.1));
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 1rem;
  font-size: 1.4rem;
  color: #6366F1;
}

/* Dynamic demo */
.practice-content .dynamic-demo { text-align: center; padding: 2rem !important; }
.practice-content .disabled-demo:disabled {
  opacity: .6;
  cursor: not-allowed;
  transform: none !important;
}
.practice-content .dynamic-msg { font-size: 1.05rem; font-weight: 600; }

/* Broken images */
.practice-content .img-demo-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
}
@media (max-width: 768px) {
  .practice-content .img-demo-grid { grid-template-columns: 1fr; }
}
.practice-content .img-demo-card {
  position: relative;
  background: #F8FAFC;
  border: 2px solid #E2E8F0;
  border-radius: 16px;
  padding: 1.5rem;
  text-align: center;
  min-height: 140px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.practice-content .img-demo-card img { max-height: 60px; max-width: 100%; }
.practice-content .img-demo-card.broken img { opacity: .3; }
.practice-content .img-badge {
  position: absolute;
  top: .65rem;
  right: .65rem;
  font-size: .68rem;
  font-weight: 800;
  padding: .25rem .55rem;
  border-radius: 999px;
  display: flex;
  align-items: center;
  gap: .25rem;
}
.practice-content .img-badge.ok { background: #D1FAE5; color: #059669 !important; }
.practice-content .img-badge.err { background: #FEE2E2; color: #DC2626 !important; }

/* Widget / interaction lab cards */
.practice-content .widget-card {
  background: #F8FAFC;
  border: 1px solid #E2E8F0;
  border-radius: 18px;
  padding: 1.35rem 1.5rem;
}
.practice-content .widget-card .lab-btn { margin-top: .5rem; }