:root {
  --bg: #0f172a;
  --surface: #1e293b;
  --surface2: #334155;
  --border: #475569;
  --text: #f8fafc;
  --text2: #cbd5e1;
  --primary: #14b8a6;
  --primary2: #3b82f6;
  --green: #10b981;
  --orange: #f59e0b;
  --red: #ef4444;
  --purple: #8b5cf6;
  --radius: 16px;
  --sidebar-w: 250px;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  min-height: 100vh;
  background:
    linear-gradient(rgba(255,255,255,0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.035) 1px, transparent 1px),
    var(--bg);
  background-size: 32px 32px;
  color: var(--text);
}

button,
input,
select,
textarea {
  font: inherit;
}

button {
  cursor: pointer;
}

input,
select,
textarea {
  width: 100%;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--surface);
  color: var(--text);
  padding: 10px 12px;
}

textarea {
  resize: vertical;
  line-height: 1.5;
}

label {
  display: grid;
  gap: 7px;
  color: var(--text2);
  font-size: 13px;
  font-weight: 700;
}

a,
a:visited {
  color: #5eead4;
  font-weight: 850;
  text-decoration-thickness: 2px;
  text-underline-offset: 4px;
}

a:hover {
  color: #93c5fd;
}

fieldset {
  display: grid;
  gap: 10px;
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 14px;
}

legend {
  padding: 0 6px;
  color: var(--text2);
  font-size: 13px;
  font-weight: 800;
}

.hidden {
  display: none !important;
}

.login-screen,
.modal-overlay {
  position: fixed;
  inset: 0;
  z-index: 1000;
  display: grid;
  place-items: center;
  background:
    radial-gradient(circle at 20% 20%, rgba(20,184,166,0.22), transparent 30%),
    radial-gradient(circle at 80% 80%, rgba(59,130,246,0.22), transparent 32%),
    rgba(15,23,42,0.96);
  padding: 24px;
}

.login-card,
.setup-modal {
  width: min(560px, 100%);
  border: 1px solid var(--border);
  border-radius: 24px;
  background: rgba(30,41,59,0.96);
  box-shadow: 0 28px 80px rgba(0,0,0,0.35);
  padding: 34px;
}

.setup-modal {
  max-height: min(90vh, 920px);
  overflow: auto;
  overscroll-behavior: contain;
}

.topic-modal {
  width: min(980px, 100%);
  max-height: min(86vh, 900px);
  overflow: auto;
  border: 1px solid var(--border);
  border-radius: 24px;
  background: rgba(30,41,59,0.98);
  box-shadow: 0 28px 80px rgba(0,0,0,0.35);
  padding: 28px;
}

.topic-modal-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 18px;
  margin-bottom: 20px;
}

.topic-domain-label {
  color: var(--primary);
  font-size: 12px;
  font-weight: 900;
  text-transform: uppercase;
}

.topic-detail-body {
  display: grid;
  gap: 16px;
}

.topic-map {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 10px;
}

.topic-map button {
  display: grid;
  gap: 4px;
  border: 1px solid var(--border);
  border-radius: 14px;
  background: rgba(20,184,166,0.1);
  color: inherit;
  padding: 12px;
  text-align: left;
}

.topic-map button:hover,
.topic-map button:focus-visible {
  border-color: rgba(94,234,212,0.72);
  background: rgba(20,184,166,0.18);
  outline: none;
}

.topic-map span {
  display: grid;
  place-items: center;
  width: 28px;
  height: 28px;
  border-radius: 999px;
  background: rgba(94,234,212,0.16);
  color: var(--primary);
  font-size: 12px;
  font-weight: 900;
}

.topic-map strong {
  color: var(--text);
}

.topic-map small {
  color: var(--text2);
}

.topic-section:target,
.topic-section.topic-section-highlight {
  border-color: rgba(94,234,212,0.78);
  box-shadow: 0 0 0 2px rgba(20,184,166,0.14);
}

.topic-section {
  border: 1px solid var(--border);
  border-radius: 16px;
  background: rgba(51,65,85,0.56);
  padding: 16px;
}

.topic-section h3 {
  margin-bottom: 10px;
}

.topic-section p,
.topic-section li {
  color: var(--text2);
  line-height: 1.55;
}

.topic-section p + p {
  margin-top: 12px;
}

.lesson-flow {
  display: grid;
  gap: 12px;
}

.lesson-step {
  display: grid;
  grid-template-columns: 42px 1fr;
  gap: 12px;
  border: 1px solid rgba(148,163,184,0.18);
  border-radius: 14px;
  background: rgba(15,23,42,0.26);
  padding: 14px;
}

.lesson-step > span {
  display: grid;
  place-items: center;
  width: 34px;
  height: 34px;
  border-radius: 10px;
  background: rgba(20,184,166,0.14);
  color: var(--primary);
  font-weight: 900;
}

.lesson-step h4 {
  margin-bottom: 5px;
  color: var(--text);
}

.topic-study-text .lesson-step p {
  color: var(--text);
}

.topic-focus-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.topic-section ul {
  display: grid;
  gap: 7px;
  padding-left: 20px;
}

.resource-link-list {
  list-style: none;
  padding-left: 0;
}

.resource-link-list li {
  display: grid;
  gap: 3px;
  border-bottom: 1px solid rgba(148,163,184,0.14);
  padding: 8px 0;
}

.resource-link-list li:last-child {
  border-bottom: 0;
}

.resource-link-list a {
  color: #5eead4;
  font-weight: 850;
  text-decoration: underline;
  text-underline-offset: 4px;
}

.resource-link-list small {
  color: var(--text2);
}

.topic-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.concept-reference {
  display: grid;
  gap: 18px;
}

.concept-filter {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 8px;
}

.concept-filter-button {
  border: 1px solid var(--border);
  border-radius: 10px;
  background: rgba(15,23,42,0.36);
  color: var(--text2);
  padding: 8px 11px;
  font-size: 13px;
  font-weight: 850;
}

.concept-filter-button.active,
.concept-filter-button:hover,
.concept-filter-button:focus-visible {
  border-color: rgba(94,234,212,0.72);
  background: rgba(20,184,166,0.16);
  color: var(--text);
  outline: none;
}

.concept-summary {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
}

.concept-summary article {
  border: 1px solid rgba(148,163,184,0.2);
  border-radius: 14px;
  background: rgba(15,23,42,0.28);
  padding: 14px;
}

.concept-summary span {
  display: block;
  color: var(--text2);
  font-size: 12px;
  font-weight: 850;
  text-transform: uppercase;
}

.concept-summary strong {
  display: block;
  margin-top: 6px;
  color: var(--text);
  font-size: 28px;
}

.concept-domain-grid {
  display: grid;
  gap: 16px;
}

.learn-focus-card {
  display: grid;
  gap: 18px;
  margin-bottom: 18px;
  border-color: rgba(20,184,166,0.42);
  background:
    linear-gradient(135deg, rgba(20,184,166,0.12), transparent 42%),
    rgba(30,41,59,0.96);
}

.learn-focus-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 18px;
}

.learn-focus-header h3 {
  margin: 4px 0 8px;
  font-size: 24px;
  line-height: 1.2;
}

.learn-focus-header p:not(.topic-domain-label) {
  color: var(--text2);
}

.learn-match-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.85fr) minmax(280px, 1.15fr);
  gap: 14px;
}

.learn-match-grid > section,
.learn-match-section {
  border: 1px solid rgba(148,163,184,0.18);
  border-radius: 14px;
  background: rgba(15,23,42,0.28);
  padding: 14px;
}

.learn-match-grid h4 {
  margin-bottom: 10px;
}

.learn-match-grid ol,
.learn-match-grid ul {
  display: grid;
  gap: 8px;
  padding-left: 20px;
  color: var(--text2);
  line-height: 1.5;
}

.learn-match-section + .learn-match-section {
  margin-top: 10px;
}

.learn-match-section strong {
  display: block;
  margin-bottom: 8px;
  color: var(--text);
}

.learn-coverage-card {
  display: grid;
  gap: 14px;
  margin-bottom: 18px;
}

.learn-coverage-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 18px;
}

.learn-coverage-header h3 {
  margin-bottom: 6px;
}

.coverage-meter {
  display: grid;
  justify-items: end;
  flex: 0 0 auto;
  border: 1px solid rgba(148,163,184,0.24);
  border-radius: 14px;
  background: rgba(15,23,42,0.3);
  padding: 12px 14px;
}

.coverage-meter span {
  color: var(--text2);
  font-size: 12px;
  font-weight: 900;
  text-transform: uppercase;
}

.coverage-meter strong {
  color: var(--text);
  font-size: 20px;
}

.coverage-meter.success {
  border-color: rgba(16,185,129,0.45);
}

.coverage-meter.warning {
  border-color: rgba(245,158,11,0.5);
}

.coverage-success,
.coverage-warning {
  display: grid;
  gap: 4px;
  border-radius: 12px;
  padding: 12px;
  line-height: 1.45;
}

.coverage-success {
  border: 1px solid rgba(16,185,129,0.34);
  background: rgba(16,185,129,0.08);
}

.coverage-warning {
  border: 1px solid rgba(245,158,11,0.38);
  background: rgba(245,158,11,0.09);
}

.coverage-success span,
.coverage-warning span {
  color: var(--text2);
}

.readiness-plan-card {
  display: grid;
  gap: 12px;
  border-color: rgba(148,163,184,0.28);
}

.readiness-plan-card.info {
  border-color: rgba(59,130,246,0.34);
  background: rgba(30,41,59,0.78);
}

.readiness-plan-card.success {
  border-color: rgba(16,185,129,0.36);
}

.readiness-plan-card.warning {
  border-color: rgba(245,158,11,0.48);
}

.readiness-plan-card.urgent {
  border-color: rgba(248,113,113,0.86);
  background: rgba(127,29,29,0.32);
  box-shadow: 0 0 0 1px rgba(248,113,113,0.16), 0 18px 40px rgba(127,29,29,0.18);
}

.readiness-plan-card.urgent h3,
.readiness-plan-card.urgent #readinessPlanMeta {
  color: #fecaca;
}

.readiness-plan-card p {
  color: var(--text2);
  line-height: 1.5;
}

.readiness-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.readiness-action {
  border: 1px solid rgba(148,163,184,0.26);
  border-radius: 999px;
  background: rgba(15,23,42,0.36);
  color: var(--text);
  cursor: pointer;
  font-size: 12px;
  font-weight: 800;
  padding: 7px 10px;
}

.readiness-action:hover,
.readiness-action:focus-visible {
  border-color: rgba(20,184,166,0.5);
  background: rgba(20,184,166,0.14);
  outline: none;
}

.learn-day-queue {
  display: grid;
  gap: 8px;
  max-height: 420px;
  overflow: auto;
}

.learn-day-item {
  display: grid;
  grid-template-columns: 110px minmax(0, 1fr) minmax(280px, 1.1fr);
  gap: 14px;
  border: 1px solid rgba(148,163,184,0.18);
  border-radius: 12px;
  background: rgba(15,23,42,0.24);
  padding: 12px;
}

.learn-day-meta,
.learn-day-tasks,
.learn-day-matches {
  min-width: 0;
}

.learn-day-tasks,
.learn-day-matches {
  display: grid;
  align-content: start;
  gap: 5px;
}

.learn-day-item span,
.learn-day-item small {
  display: block;
  color: var(--text2);
  line-height: 1.4;
}

.learn-day-tasks > strong,
.learn-day-matches > strong {
  color: var(--text);
  font-size: 13px;
}

.learn-day-matches small span {
  display: block;
  color: var(--primary);
  font-weight: 850;
}

.concept-domain-card {
  display: grid;
  gap: 14px;
  border: 1px solid rgba(148,163,184,0.24);
  border-radius: 16px;
  background: rgba(15,23,42,0.22);
  padding: 18px;
}

.concept-domain-card > header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 14px;
}

.concept-domain-card > header p {
  color: var(--primary);
  font-size: 12px;
  font-weight: 900;
  text-transform: uppercase;
}

.concept-domain-card > header span {
  flex: 0 0 auto;
  border: 1px solid rgba(94,234,212,0.34);
  border-radius: 999px;
  color: var(--text2);
  padding: 6px 10px;
  font-size: 12px;
  font-weight: 850;
}

.concept-domain-card > p {
  color: var(--text2);
  line-height: 1.55;
}

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

.concept-section {
  border: 1px solid rgba(148,163,184,0.18);
  border-radius: 14px;
  background: rgba(51,65,85,0.38);
  padding: 14px;
}

.concept-section h4 {
  margin-bottom: 9px;
}

.concept-section li,
.concept-section p {
  color: var(--text2);
  line-height: 1.5;
}

.concept-section ul {
  display: grid;
  gap: 7px;
  padding-left: 18px;
}

.concept-traps {
  border-color: rgba(245,158,11,0.38);
  background: rgba(245,158,11,0.08);
}

.concept-bottom-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
  margin-top: 18px;
}

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

.concept-list-item {
  border: 1px solid rgba(148,163,184,0.18);
  border-radius: 14px;
  background: rgba(15,23,42,0.28);
  padding: 13px;
}

.concept-list-item strong {
  color: var(--text);
}

.concept-list-item p {
  margin-top: 5px;
  color: var(--text2);
  line-height: 1.5;
}

.guided-review-intro {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(260px, 0.45fr);
  gap: 16px;
  margin-bottom: 18px;
  border-color: rgba(20,184,166,0.38);
  background:
    linear-gradient(135deg, rgba(20,184,166,0.1), transparent 44%),
    rgba(30,41,59,0.96);
}

.guided-review-intro p,
.guided-review-rule span {
  color: var(--text2);
  line-height: 1.5;
}

.guided-review-rule {
  display: grid;
  gap: 6px;
  align-content: center;
  border: 1px solid rgba(94,234,212,0.28);
  border-radius: 14px;
  background: rgba(15,23,42,0.28);
  padding: 14px;
}

.guided-review-rule strong {
  color: var(--primary);
}

.guided-review-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.guided-review-card {
  display: grid;
  align-content: start;
  gap: 14px;
  border-color: rgba(148,163,184,0.24);
  background: rgba(30,41,59,0.92);
}

.guided-review-card > header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 14px;
}

.guided-review-card > header strong,
.guided-review-step {
  flex: 0 0 auto;
  border: 1px solid rgba(94,234,212,0.32);
  border-radius: 999px;
  color: #99f6e4;
  padding: 6px 10px;
  font-size: 12px;
  font-weight: 900;
}

.guided-review-step {
  display: inline-flex;
  margin-bottom: 8px;
  border-color: rgba(59,130,246,0.34);
  color: #bfdbfe;
}

.guided-review-card h3 {
  line-height: 1.2;
}

.guided-review-card > p {
  color: var(--text2);
  line-height: 1.55;
}

.guided-review-source {
  display: grid;
  gap: 5px;
  border: 1px solid rgba(148,163,184,0.18);
  border-radius: 12px;
  background: rgba(15,23,42,0.24);
  padding: 12px;
}

.guided-review-source span {
  color: var(--primary);
  font-size: 12px;
  font-weight: 900;
  text-transform: uppercase;
}

.guided-review-source p {
  color: var(--text2);
  line-height: 1.45;
}

.guided-review-columns {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.guided-review-columns section {
  border: 1px solid rgba(148,163,184,0.18);
  border-radius: 12px;
  background: rgba(51,65,85,0.34);
  padding: 13px;
}

.guided-review-columns h4 {
  margin-bottom: 8px;
}

.guided-review-columns ul {
  display: grid;
  gap: 7px;
  padding-left: 18px;
}

.guided-review-columns li {
  color: var(--text2);
  line-height: 1.45;
}

.login-mark,
.logo-mark {
  display: grid;
  place-items: center;
  width: 48px;
  height: 48px;
  border-radius: 14px;
  background: linear-gradient(135deg, var(--primary), var(--primary2));
  color: white;
  font-size: 24px;
  font-weight: 900;
}

.login-card h1 {
  margin-top: 18px;
  font-size: 34px;
}

.login-card p,
.modal-header p,
.page-subtitle,
.muted {
  color: var(--text2);
  line-height: 1.55;
}

.login-note {
  margin: 0;
  border: 1px solid rgba(20,184,166,0.28);
  border-radius: 12px;
  background: rgba(20,184,166,0.08);
  padding: 12px;
  font-size: 14px;
}

.demo-choice,
.login-section-title {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
}

.demo-choice {
  margin-top: 22px;
  border: 1px solid rgba(59,130,246,0.3);
  border-radius: 14px;
  background: rgba(59,130,246,0.1);
  padding: 14px;
}

.demo-choice div,
.login-section-title {
  min-width: 0;
}

.demo-choice strong,
.login-section-title strong {
  display: block;
  color: var(--text);
  font-size: 15px;
}

.demo-choice span,
.login-section-title span {
  display: block;
  margin-top: 3px;
  color: var(--text2);
  font-size: 13px;
  line-height: 1.4;
}

.login-section-title {
  border-top: 1px solid rgba(148,163,184,0.22);
  padding-top: 18px;
}

.login-advanced {
  border: 1px solid rgba(148,163,184,0.22);
  border-radius: 12px;
  background: rgba(15,23,42,0.26);
  padding: 12px;
}

.login-advanced summary {
  cursor: pointer;
  list-style: none;
  color: var(--text);
  font-size: 13px;
  font-weight: 850;
}

.login-advanced summary::-webkit-details-marker {
  display: none;
}

.login-advanced summary::after {
  content: "+";
  float: right;
  color: var(--primary);
  font-weight: 900;
}

.login-advanced[open] summary::after {
  content: "-";
}

.login-advanced label {
  margin-top: 12px;
}

.login-advanced p {
  margin: 10px 0 0;
  color: var(--text2);
  font-size: 13px;
  line-height: 1.45;
}

.login-error {
  min-height: 20px;
  color: #fca5a5;
  font-size: 13px;
  font-weight: 800;
}

.login-form,
.stack {
  display: grid;
  gap: 14px;
  margin-top: 22px;
}

.setup-grid {
  display: grid;
  gap: 16px;
  margin-top: 22px;
}

.setup-progress {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 8px;
  margin-top: 18px;
}

.setup-progress span {
  border: 1px solid var(--border);
  border-radius: 999px;
  background: rgba(51,65,85,0.5);
  color: var(--text2);
  padding: 8px 10px;
  text-align: center;
  font-size: 12px;
  font-weight: 900;
}

.setup-progress span.active {
  border-color: rgba(20,184,166,0.7);
  background: rgba(20,184,166,0.15);
  color: var(--text);
}

.setup-step {
  display: none;
  gap: 16px;
}

.setup-step.active {
  display: grid;
}

.setup-actions {
  position: sticky;
  bottom: -34px;
  z-index: 3;
  display: flex;
  gap: 10px;
  justify-content: flex-end;
  margin: 8px -34px -34px;
  border-top: 1px solid var(--border);
  background: rgba(30,41,59,0.98);
  padding: 16px 34px;
}

.setup-fast-note {
  border: 1px solid rgba(20,184,166,0.28);
  border-radius: 12px;
  background: rgba(20,184,166,0.08);
  color: var(--text2);
  padding: 12px;
  line-height: 1.5;
}

.setup-advanced {
  border: 1px solid rgba(148,163,184,0.22);
  border-radius: 12px;
  background: rgba(15,23,42,0.26);
  padding: 12px;
}

.setup-advanced summary {
  color: var(--text);
  cursor: pointer;
  font-weight: 850;
}

.setup-advanced label {
  margin-top: 14px;
}

.confidence-controls {
  display: grid;
  gap: 16px;
  margin-top: 14px;
}

.material-grid {
  display: grid;
  gap: 10px;
}

.material-choice {
  grid-template-columns: auto 1fr;
  align-items: flex-start;
  border: 1px solid rgba(148,163,184,0.24);
  border-radius: 12px;
  background: rgba(51,65,85,0.38);
  padding: 12px;
}

.material-choice input {
  width: auto;
  margin-top: 4px;
}

.material-choice span {
  display: grid;
  gap: 3px;
}

.material-choice strong {
  color: var(--text);
}

.material-choice small {
  color: var(--text2);
  line-height: 1.4;
}

.diagnostic-panel {
  display: grid;
  gap: 14px;
  margin-top: 16px;
  border: 1px solid var(--border);
  border-radius: 14px;
  background: rgba(15,23,42,0.34);
  padding: 16px;
}

.diagnostic-panel .question-text {
  font-size: 20px;
  line-height: 1.35;
}

.diagnostic-panel.hidden {
  display: none;
}

.diagnostic-summary {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
  margin-top: 12px;
}

.diagnostic-summary article {
  display: grid;
  gap: 4px;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: rgba(51,65,85,0.5);
  padding: 12px;
}

.diagnostic-summary strong {
  color: var(--text);
}

.diagnostic-summary span,
.diagnostic-summary small,
.diagnostic-plan p {
  color: var(--text2);
  line-height: 1.45;
}

.diagnostic-plan {
  display: grid;
  gap: 8px;
  margin-top: 12px;
  border: 1px solid rgba(20,184,166,0.3);
  border-radius: 12px;
  background: rgba(20,184,166,0.08);
  padding: 14px;
}

.diagnostic-risk.info {
  border-color: rgba(59,130,246,0.34);
  background: rgba(59,130,246,0.08);
}

.diagnostic-risk.success {
  border-color: rgba(16,185,129,0.34);
  background: rgba(16,185,129,0.08);
}

.diagnostic-risk.warning {
  border-color: rgba(245,158,11,0.4);
  background: rgba(245,158,11,0.09);
}

.diagnostic-risk.urgent {
  border-color: rgba(248,113,113,0.46);
  background: rgba(248,113,113,0.1);
}

.diagnostic-answer {
  display: grid;
  gap: 8px;
}

.diagnostic-answer.correct strong {
  color: #86efac;
}

.diagnostic-answer.incorrect strong {
  color: #fca5a5;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  border: 0;
  border-radius: 10px;
  padding: 10px 16px;
  color: var(--text);
  font-weight: 800;
  line-height: 1.2;
  text-align: center;
  text-decoration: none;
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary), var(--primary2));
}

.btn-secondary {
  border: 1px solid var(--border);
  background: var(--surface2);
}

.btn-secondary.active {
  border-color: rgba(245, 158, 11, 0.8);
  background: rgba(245, 158, 11, 0.16);
}

.btn-ghost {
  border: 1px solid transparent;
  background: transparent;
  color: var(--text2);
}

.btn-signoff {
  border: 1px solid rgba(248,113,113,0.58);
  background: rgba(127,29,29,0.42);
  color: #fee2e2;
  box-shadow: inset 0 0 0 1px rgba(254,202,202,0.08);
}

.btn-signoff:hover,
.btn-signoff:focus-visible {
  border-color: rgba(252,165,165,0.92);
  background: rgba(153,27,27,0.68);
  outline: none;
}

.full {
  width: 100%;
}

.stack + .btn.full,
.stack + .btn.full + .btn.full {
  margin-top: 12px;
}

.app {
  display: flex;
  min-height: 100vh;
}

.sidebar {
  position: fixed;
  inset: 0 auto 0 0;
  z-index: 100;
  display: flex;
  flex-direction: column;
  width: var(--sidebar-w);
  border-right: 1px solid var(--border);
  background: rgba(30,41,59,0.96);
}

.sidebar-header {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 22px;
  border-bottom: 1px solid var(--border);
}

.sidebar-header h1 {
  font-size: 22px;
  line-height: 1;
}

.sidebar-header span {
  color: var(--text2);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.nav-list {
  display: grid;
  gap: 5px;
  padding: 14px 10px;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 12px;
  width: 100%;
  border: 1px solid transparent;
  border-radius: 12px;
  background: transparent;
  color: var(--text2);
  padding: 12px 14px;
  text-align: left;
  font-weight: 750;
}

.nav-number {
  display: grid;
  place-items: center;
  width: 24px;
  height: 24px;
  border-radius: 8px;
  background: rgba(255,255,255,0.06);
  color: var(--text);
  font-size: 12px;
}

.nav-label {
  min-width: 0;
}

.nav-item:hover,
.nav-item.active {
  border-color: rgba(20,184,166,0.36);
  background: rgba(20,184,166,0.12);
  color: white;
}

.sidebar-footer {
  display: grid;
  gap: 10px;
  margin-top: auto;
  padding: 16px;
  border-top: 1px solid var(--border);
}

.settings-drawer,
.account-advanced {
  display: grid;
  gap: 10px;
}

.settings-drawer summary,
.account-advanced summary {
  cursor: pointer;
  list-style: none;
  color: var(--text2);
  font-size: 13px;
  font-weight: 850;
}

.settings-drawer summary::-webkit-details-marker,
.account-advanced summary::-webkit-details-marker {
  display: none;
}

.settings-drawer summary::after,
.account-advanced summary::after {
  content: "+";
  float: right;
  color: var(--primary);
  font-weight: 900;
}

.settings-drawer[open] summary::after,
.account-advanced[open] summary::after {
  content: "-";
}

.settings-drawer .btn,
.settings-drawer .restore-button {
  margin-top: 8px;
}

.countdown {
  display: grid;
  gap: 3px;
  margin-top: 8px;
  border-radius: 16px;
  background: rgba(20,184,166,0.1);
  padding: 16px;
  text-align: center;
}

.countdown span,
.countdown small {
  color: var(--text2);
  font-size: 12px;
  font-weight: 800;
  text-transform: uppercase;
}

.countdown strong {
  color: var(--primary);
  font-size: 42px;
}

.content {
  width: min(1180px, calc(100% - var(--sidebar-w)));
  margin-left: var(--sidebar-w);
  padding: 32px;
}

.tab {
  display: none;
  animation: fadeIn 180ms ease;
}

.tab.active {
  display: block;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(6px); }
  to { opacity: 1; transform: translateY(0); }
}

.page-header {
  margin-bottom: 24px;
}

.page-header h2 {
  font-size: 30px;
  line-height: 1.1;
}

.page-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 14px;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  margin: 20px 0;
}

.stat-card,
.card {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: rgba(30,41,59,0.94);
  padding: 22px;
}

.stat-card span,
.stat-card small {
  color: var(--text2);
  font-size: 12px;
  font-weight: 800;
  text-transform: uppercase;
}

.stat-card strong {
  display: block;
  margin: 8px 0;
  font-size: 34px;
}

.streak-active {
  border-color: rgba(245, 158, 11, 0.5);
  background: rgba(245, 158, 11, 0.08);
}

.streak-active strong {
  color: #fbbf24;
}

.daily-ten-card {
  margin-bottom: 16px;
}

.daily-ten-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 14px;
}

.daily-ten-header h3 {
  margin: 0 0 3px;
}

.daily-ten-header .muted {
  font-size: 13px;
  margin: 0;
}

.daily-ten-progress {
  display: flex;
  align-items: center;
  gap: 12px;
}

.daily-ten-bar {
  flex: 1;
  height: 8px;
  border-radius: 999px;
  background: rgba(255,255,255,0.08);
  overflow: hidden;
}

.daily-ten-fill {
  height: 100%;
  border-radius: 999px;
  background: var(--primary);
  transition: width 0.4s ease;
}

.daily-ten-complete .daily-ten-fill {
  background: var(--green);
}

.daily-ten-count {
  font-size: 13px;
  font-weight: 800;
  color: var(--text2);
  white-space: nowrap;
}

.dashboard-grid {
  display: grid;
  grid-template-columns: 220px 1.2fr 1fr;
  gap: 16px;
  margin-bottom: 20px;
}

.dashboard-support-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 16px;
  margin-top: 16px;
}

.local-data-card,
.plan-tuneup-card {
  display: grid;
  gap: 12px;
  align-content: start;
}

.plan-tuneup-card {
  padding: 18px;
}

.local-data-card h3,
.plan-tuneup-card h3 {
  margin-bottom: 0;
}

.local-data-card p {
  color: var(--text2);
  line-height: 1.5;
}

.tuneup-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.profile-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.account-advanced {
  border-top: 1px solid rgba(148,163,184,0.16);
  padding-top: 8px;
}

.account-advanced .profile-actions {
  margin-top: 8px;
}

.sync-status-card small {
  display: block;
  margin-top: 8px;
  color: var(--text2);
  line-height: 1.4;
  overflow-wrap: anywhere;
}

.sync-status-card.needs-review {
  border-color: rgba(245,158,11,0.72);
  background: rgba(245,158,11,0.08);
  box-shadow: 0 0 0 2px rgba(245,158,11,0.12);
}

.card h3 {
  margin-bottom: 16px;
  font-size: 17px;
}

.card-header,
.tracker-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 16px;
}

.ring {
  display: grid;
  place-items: center;
  width: 142px;
  height: 142px;
  margin: 16px auto;
  border-radius: 50%;
  background: conic-gradient(var(--primary) var(--p, 0%), var(--surface2) 0);
}

.ring span {
  display: grid;
  place-items: center;
  width: 108px;
  height: 108px;
  border-radius: 50%;
  background: var(--surface);
  font-size: 28px;
  font-weight: 900;
}

.progress-card {
  text-align: center;
}

.domain-row {
  display: grid;
  gap: 7px;
  margin-bottom: 15px;
}

.domain-row header {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  color: var(--text2);
  font-size: 13px;
}

.bar {
  overflow: hidden;
  height: 10px;
  border-radius: 999px;
  background: var(--surface2);
}

.bar-fill {
  height: 100%;
  border-radius: inherit;
  background: linear-gradient(90deg, var(--primary), var(--primary2));
}

.weekly-chart {
  display: flex;
  align-items: end;
  gap: 10px;
  height: 180px;
  padding-top: 10px;
}

.week-bar {
  display: grid;
  grid-template-rows: 1fr auto;
  align-items: end;
  flex: 1;
  height: 100%;
  color: var(--text2);
  font-size: 12px;
  text-align: center;
}

.week-bar div {
  width: 100%;
  min-height: 4px;
  border-radius: 8px 8px 0 0;
  background: linear-gradient(180deg, var(--primary2), var(--purple));
}

.today-list,
.resource-list,
.plan-list {
  display: grid;
  gap: 12px;
}

.today-item,
.resource-item,
.plan-week {
  border: 1px solid var(--border);
  border-radius: 14px;
  background: rgba(51,65,85,0.62);
  padding: 15px;
}

.today-item strong,
.resource-item h4,
.plan-week h3 {
  display: block;
  margin-bottom: 6px;
}

.today-item p,
.resource-item p,
.plan-week p {
  color: var(--text2);
  line-height: 1.5;
}

.today-item .today-srs {
  color: var(--text);
  font-weight: 800;
}

.today-card {
  border-color: rgba(20,184,166,0.42);
  background:
    linear-gradient(135deg, rgba(20,184,166,0.12), transparent 42%),
    rgba(30,41,59,0.96);
}

.today-primary {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(280px, 1.1fr);
  gap: 18px;
  align-items: start;
  border-color: rgba(20,184,166,0.38);
}

.today-primary strong {
  font-size: 24px;
  line-height: 1.22;
}

.today-status {
  display: inline-flex;
  width: fit-content;
  margin-bottom: 10px;
  border-radius: 999px;
  background: rgba(20,184,166,0.14);
  color: var(--primary);
  padding: 5px 10px;
  font-size: 12px;
  font-weight: 900;
  text-transform: uppercase;
}

.today-primary ol {
  display: grid;
  gap: 9px;
  margin: 0;
  padding-left: 22px;
  color: var(--text);
  line-height: 1.5;
  font-weight: 700;
}

.resource-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 12px;
}

.resource-open-link {
  display: inline-flex;
  width: fit-content;
  border-radius: 8px;
  background: rgba(20,184,166,0.13);
  padding: 4px 8px;
}

.material-workflow {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
  margin: 14px 0;
}

.material-workflow div {
  display: grid;
  gap: 5px;
  border: 1px solid rgba(20,184,166,0.28);
  border-radius: 12px;
  background: rgba(20,184,166,0.08);
  padding: 12px;
}

.material-workflow strong {
  color: var(--text);
}

.material-workflow span {
  color: var(--text2);
  line-height: 1.45;
}

.btn:disabled {
  cursor: not-allowed;
  opacity: 0.45;
}

.file-preview-text {
  overflow: auto;
  max-height: 55vh;
  border-radius: 12px;
  background: rgba(15,23,42,0.78);
  color: var(--text2);
  padding: 14px;
  white-space: pre-wrap;
  font: inherit;
  line-height: 1.5;
}

.file-viewer-frame {
  width: 100%;
  min-height: 70vh;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: white;
}

.week-day-list {
  display: grid;
  gap: 8px;
  margin-top: 14px;
}

.week-day-line {
  display: grid;
  grid-template-columns: 72px 74px 92px minmax(220px, 1fr);
  gap: 10px;
  align-items: center;
  border-top: 1px solid rgba(148,163,184,0.18);
  padding-top: 8px;
  color: var(--text2);
}

.week-day-line strong {
  color: var(--text);
}

.week-day-line p {
  color: var(--text);
}

.plan-topic-cell {
  display: grid;
  gap: 4px;
}

.plan-topic-cell small {
  color: var(--text2);
  line-height: 1.35;
}

.tracker-table {
  display: grid;
  gap: 8px;
}

.tracker-row {
  display: grid;
  grid-template-columns: 76px 90px 92px minmax(220px, 1fr) 120px 92px;
  gap: 10px;
  align-items: center;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: rgba(51,65,85,0.55);
  padding: 10px;
}

.tracker-row.header {
  border: 0;
  background: transparent;
  color: var(--text2);
  font-size: 12px;
  font-weight: 900;
  text-transform: uppercase;
}

.tracker-row.done {
  border-color: rgba(16,185,129,0.5);
  background: rgba(16,185,129,0.08);
}

.tracker-row.today {
  border-color: rgba(20,184,166,0.85);
  background: linear-gradient(90deg, rgba(20,184,166,0.18), rgba(51,65,85,0.58));
  box-shadow: inset 3px 0 0 var(--primary);
}

.tracker-row.missed {
  border-color: rgba(245,158,11,0.44);
  background: rgba(245,158,11,0.08);
}

.today-marker,
.missed-marker {
  display: inline-flex;
  align-items: center;
  margin-left: 6px;
  border: 1px solid rgba(20,184,166,0.45);
  border-radius: 999px;
  background: rgba(20,184,166,0.16);
  color: #99f6e4;
  padding: 2px 7px;
  font-size: 11px;
  font-weight: 900;
  text-transform: uppercase;
}

.missed-marker {
  border-color: rgba(245,158,11,0.5);
  background: rgba(245,158,11,0.14);
  color: #fcd34d;
}

.tracker-field {
  display: block;
}

.tracker-field span {
  display: none;
}

.tracker-topic strong {
  display: block;
}

.topic-link {
  border: 0;
  background: transparent;
  color: var(--text);
  padding: 0;
  text-align: left;
  font-weight: 900;
  text-decoration: underline;
  text-decoration-color: rgba(20,184,166,0.55);
  text-underline-offset: 4px;
}

.topic-link:hover {
  color: var(--primary);
}

.tracker-topic small {
  display: block;
  margin-top: 4px;
  color: var(--text2);
  line-height: 1.4;
}

.task-details {
  margin-top: 6px;
  color: var(--text2);
  font-size: 12px;
}

.task-details summary {
  cursor: pointer;
  color: #99f6e4;
  font-weight: 800;
}

.task-details ul {
  margin: 6px 0 0;
  padding-left: 18px;
}

.task-details li + li {
  margin-top: 3px;
}

.tracker-topic {
  min-width: 0;
}

.tracker-topic .topic-link,
.plan-topic-cell .topic-link {
  max-width: 100%;
}

.tracker-row input {
  min-height: 38px;
}

.done-toggle {
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--surface);
  color: var(--text);
  padding: 9px 10px;
  font-weight: 900;
}

.done-toggle.done {
  border-color: rgba(16,185,129,0.45);
  background: rgba(16,185,129,0.18);
  color: var(--green);
}

.resource-grid,
.notebook-grid,
.flashcard-layout {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 18px;
}

.flashcard-panel {
  display: grid;
  gap: 16px;
}

.flashcard-card {
  display: grid;
  gap: 16px;
  align-content: center;
  width: 100%;
  min-height: 300px;
  border: 1px solid rgba(20,184,166,0.38);
  border-radius: 18px;
  background:
    radial-gradient(circle at top left, rgba(20,184,166,0.18), transparent 34%),
    rgba(51,65,85,0.68);
  color: var(--text);
  padding: 28px;
  text-align: left;
}

.flashcard-card span {
  color: var(--primary);
  font-size: 12px;
  font-weight: 900;
  text-transform: uppercase;
}

.flashcard-card strong {
  font-size: clamp(22px, 3vw, 34px);
  line-height: 1.2;
}

.flashcard-card small {
  color: var(--text2);
  font-weight: 800;
}

.question-panel {
  display: grid;
  gap: 18px;
  max-width: 980px;
}

.question-selectors {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  justify-content: flex-end;
}

.question-text {
  color: var(--text);
  font-size: 21px;
  font-weight: 750;
  line-height: 1.45;
}

.question-options {
  display: grid !important;
  gap: 10px;
  width: 100%;
}

.option-button {
  display: grid !important;
  grid-template-columns: 42px minmax(0, 1fr);
  gap: 12px;
  align-items: start;
  width: 100% !important;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: rgba(51,65,85,0.62);
  color: var(--text);
  padding: 16px;
  text-align: left;
  line-height: 1.45;
  white-space: normal;
  appearance: none;
}

.option-button:hover {
  border-color: rgba(20,184,166,0.55);
}

.option-letter {
  position: relative;
  display: grid;
  place-items: center;
  width: 34px;
  height: 34px;
  border-radius: 10px;
  background: rgba(20,184,166,0.16);
  color: var(--primary);
  font-weight: 900;
}

.option-key-hint {
  position: absolute;
  bottom: -3px;
  right: -3px;
  width: 13px;
  height: 13px;
  border-radius: 4px;
  background: rgba(20,184,166,0.35);
  color: var(--primary);
  font-size: 9px;
  font-weight: 900;
  display: grid;
  place-items: center;
  line-height: 1;
}

.option-text {
  min-width: 0;
  color: var(--text);
  font-size: 16px;
  font-weight: 700;
}

.option-button.correct {
  border-color: rgba(16,185,129,0.75);
  background: rgba(16,185,129,0.16);
}

.option-button.selected {
  border-color: rgba(94,234,212,0.78);
  background: rgba(20,184,166,0.18);
}

.option-button.incorrect {
  border-color: rgba(239,68,68,0.75);
  background: rgba(239,68,68,0.14);
}

.explanation-box {
  border: 1px solid rgba(20,184,166,0.36);
  border-radius: 12px;
  background: rgba(20,184,166,0.1);
  padding: 14px;
  color: var(--text2);
  line-height: 1.55;
}

.answer-breakdown {
  display: grid;
  gap: 12px;
}

.answer-breakdown p,
.answer-breakdown ul {
  margin: 0;
}

.answer-breakdown ul {
  display: grid;
  gap: 8px;
  padding-left: 18px;
}

.answer-breakdown li span {
  color: var(--text);
  font-weight: 750;
}

.answer-breakdown li small {
  display: block;
  color: var(--text2);
  margin-top: 2px;
}

.answer-details {
  margin-top: 2px;
}

.answer-details[open] {
  display: grid;
  gap: 12px;
}

.answer-details summary {
  width: fit-content;
  cursor: pointer;
  list-style: none;
  border: 1px solid rgba(94,234,212,0.38);
  border-radius: 999px;
  background: rgba(15,23,42,0.32);
  color: var(--text);
  font-size: 13px;
  font-weight: 850;
  padding: 8px 12px;
}

.answer-details summary::-webkit-details-marker {
  display: none;
}

.answer-details summary::after {
  content: " +";
  color: var(--primary);
  font-weight: 900;
}

.answer-details[open] summary::after {
  content: " -";
}

.answer-status-note {
  border: 1px solid rgba(45,212,191,0.35);
  border-radius: 8px;
  background: rgba(45,212,191,0.10);
  color: #c7f9ef;
  padding: 10px 12px;
}

.tutor-shell {
  display: grid;
  grid-template-areas:
    "disclosure disclosure"
    "messages matches"
    "compose compose";
  grid-template-columns: minmax(0, 1.35fr) minmax(280px, 0.65fr);
  gap: 16px;
  max-width: 1120px;
}

.tutor-disclosure {
  grid-area: disclosure;
}

.tutor-messages {
  grid-area: messages;
}

.tutor-local-matches {
  grid-area: matches;
}

.tutor-compose {
  grid-area: compose;
}

.tutor-disclosure {
  display: grid;
  gap: 4px;
  border: 1px solid rgba(245,158,11,0.36);
  border-radius: 12px;
  background: rgba(245,158,11,0.1);
  color: #fde68a;
  padding: 12px 14px;
}

.tutor-disclosure span {
  color: var(--text2);
  line-height: 1.45;
}

.tutor-byok {
  border: 1px solid rgba(148,163,184,0.18);
  border-radius: 10px;
  padding: 0;
  font-size: 0.82rem;
}
.tutor-byok summary {
  cursor: pointer;
  padding: 10px 14px;
  font-weight: 600;
  color: var(--text2);
  list-style: none;
  display: flex;
  align-items: center;
  gap: 8px;
  user-select: none;
}
.tutor-byok summary::-webkit-details-marker { display: none; }
.tutor-byok-status {
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--text2);
}
.tutor-byok-status.byok-active { color: #34d399; }
.tutor-byok-body {
  padding: 0 14px 14px;
  display: grid;
  gap: 10px;
  color: var(--text2);
  line-height: 1.5;
}
.tutor-byok-body ol {
  margin: 0;
  padding-left: 18px;
  display: grid;
  gap: 4px;
}
.tutor-byok-row {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}
.tutor-byok-row input {
  flex: 1;
  min-width: 0;
  padding: 6px 10px;
  border-radius: 6px;
  border: 1px solid rgba(148,163,184,0.3);
  background: rgba(15,23,42,0.6);
  color: var(--text1);
  font-size: 0.82rem;
  font-family: monospace;
}
.tutor-byok-row button {
  padding: 6px 14px;
  border-radius: 6px;
  border: 1px solid rgba(148,163,184,0.3);
  background: rgba(148,163,184,0.1);
  color: var(--text1);
  font-size: 0.82rem;
  cursor: pointer;
  white-space: nowrap;
}
.tutor-byok-row button:hover { background: rgba(148,163,184,0.2); }

.tutor-messages,
.tutor-compose,
.tutor-local-matches {
  display: grid;
  gap: 12px;
}

.tutor-message {
  display: grid;
  gap: 10px;
  max-width: 780px;
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 14px;
  line-height: 1.5;
}

.tutor-message.assistant {
  justify-self: start;
  border-color: rgba(20,184,166,0.42);
  background: rgba(20,184,166,0.1);
}

.tutor-message.user {
  justify-self: end;
  border-color: rgba(59,130,246,0.4);
  background: rgba(59,130,246,0.12);
}

.tutor-message-meta,
.tutor-next-actions,
.tutor-example-prompts,
.tutor-compose-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
}

.tutor-coverage-badge,
.tutor-source-chip {
  display: inline-flex;
  align-items: center;
  min-height: 26px;
  border-radius: 999px;
  padding: 5px 9px;
  font-size: 12px;
  font-weight: 900;
}

.tutor-coverage-badge {
  background: rgba(20,184,166,0.18);
  color: #99f6e4;
}

.tutor-source-chip {
  border: 1px solid rgba(148,163,184,0.3);
  background: rgba(15,23,42,0.34);
  color: var(--text2);
}

.tutor-typing-indicator {
  display: flex !important;
  align-items: center;
  gap: 5px;
  padding: 14px 18px !important;
}

.tutor-typing-indicator span {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: rgba(20, 184, 166, 0.7);
  animation: tutor-bounce 1.2s infinite ease-in-out;
}

.tutor-typing-indicator span:nth-child(2) { animation-delay: 0.2s; }
.tutor-typing-indicator span:nth-child(3) { animation-delay: 0.4s; }

@keyframes tutor-bounce {
  0%, 60%, 100% { transform: translateY(0); opacity: 0.5; }
  30% { transform: translateY(-6px); opacity: 1; }
}

.tutor-next-action,
.tutor-example-prompt {
  border: 1px solid rgba(94,234,212,0.34);
  border-radius: 999px;
  background: rgba(15,23,42,0.32);
  color: var(--text);
  padding: 8px 11px;
  font-size: 13px;
  font-weight: 850;
}

.tutor-next-action:disabled,
.tutor-example-prompt:disabled {
  cursor: not-allowed;
  opacity: 0.62;
}

.tutor-input-label {
  gap: 9px;
}

.tutor-compose-actions {
  justify-content: space-between;
}

.tutor-status {
  border: 1px solid rgba(148,163,184,0.28);
  border-radius: 10px;
  padding: 10px 12px;
  color: var(--text2);
  font-size: 13px;
  font-weight: 800;
}

.tutor-status.not-configured {
  border-color: rgba(245,158,11,0.44);
  background: rgba(245,158,11,0.12);
  color: #fde68a;
}

.tutor-local-matches {
  align-content: start;
  border: 1px solid var(--border);
  border-radius: 14px;
  background: rgba(15,23,42,0.28);
  padding: 14px;
}

.tutor-local-matches h3 {
  font-size: 16px;
}

.tutor-match-row {
  display: grid;
  gap: 7px;
  border-top: 1px solid rgba(148,163,184,0.2);
  padding-top: 10px;
}

.tutor-match-row:first-of-type {
  border-top: 0;
  padding-top: 0;
}

.tutor-match-row p {
  color: var(--text2);
  line-height: 1.5;
}

.answer-logic,
.framework-map {
  border-top: 1px solid rgba(148,163,184,0.22);
  padding-top: 10px;
}

.question-summary {
  display: grid;
  gap: 16px;
}

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

.summary-grid article,
.summary-focus,
.missed-item {
  border: 1px solid var(--border);
  border-radius: 12px;
  background: rgba(15,23,42,0.38);
  padding: 14px;
}

.summary-grid span,
.missed-item small {
  display: block;
  color: var(--text2);
  font-weight: 800;
}

.summary-grid strong {
  display: block;
  margin-top: 4px;
  color: var(--text);
  font-size: 26px;
}

.summary-focus h4,
.missed-item h4 {
  margin: 0 0 10px;
  color: var(--text);
}

.summary-focus ul {
  display: grid;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.summary-focus li {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  border-top: 1px solid rgba(148,163,184,0.18);
  padding-top: 8px;
}

.summary-focus li:first-child {
  border-top: 0;
  padding-top: 0;
}

.summary-focus li span {
  color: var(--text2);
  white-space: nowrap;
}

.missed-list {
  display: grid;
  gap: 12px;
}

.missed-item {
  display: grid;
  gap: 8px;
}

.missed-item p {
  margin: 0;
  color: var(--text2);
  line-height: 1.55;
}

.flashcard-actions {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
  gap: 10px;
}

.mock-exam-card,
.mock-panel,
.mock-report,
.mock-setup {
  display: grid;
  gap: 16px;
}

.mock-setup {
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
}

.mock-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  justify-content: flex-end;
}

.mock-status {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.mock-status > div {
  display: grid;
  gap: 4px;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: rgba(15,23,42,0.32);
  padding: 12px;
}

.mock-status strong {
  color: var(--text);
  font-size: 18px;
}

.mock-status span,
.mock-report p,
.mock-report small {
  color: var(--text2);
  line-height: 1.5;
}

.mock-report-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(130px, 1fr));
  gap: 10px;
}

.mock-report-grid article {
  border: 1px solid var(--border);
  border-radius: 12px;
  background: rgba(51,65,85,0.5);
  padding: 12px;
}

.mock-report-grid span {
  color: var(--text2);
  font-size: 12px;
  font-weight: 800;
}

.mock-report-grid strong {
  display: block;
  margin-top: 4px;
  color: var(--text);
  font-size: 24px;
}

.external-flashcards {
  display: grid;
  gap: 10px;
  margin-top: 22px;
  border-top: 1px solid var(--border);
  padding-top: 18px;
}

.file-button {
  position: relative;
  display: inline-flex;
  width: fit-content;
  margin: 16px 0;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--primary), var(--primary2));
  color: white;
  padding: 10px 14px;
}

.file-button input,
.restore-button input {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  opacity: 0;
  cursor: pointer;
}

.restore-button {
  position: relative;
  overflow: hidden;
}

.prompt-card {
  border: 1px solid var(--border);
  border-radius: 14px;
  background: rgba(51,65,85,0.62);
  padding: 14px;
  margin-bottom: 12px;
}

.prompt-card p {
  margin-top: 6px;
  color: var(--text2);
  line-height: 1.45;
}

.knowledge-flow {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
  margin-top: 14px;
}

.knowledge-flow div {
  display: grid;
  gap: 6px;
  border: 1px solid var(--border);
  border-radius: 14px;
  background: rgba(20,184,166,0.08);
  padding: 14px;
}

.knowledge-flow strong {
  color: var(--text);
}

.knowledge-flow span {
  color: var(--text2);
  line-height: 1.45;
}

.prompt-card pre,
.saved-analysis {
  overflow: auto;
  max-height: 320px;
  margin-top: 10px;
  border-radius: 10px;
  background: rgba(15,23,42,0.78);
  color: var(--text2);
  padding: 12px;
  white-space: pre-wrap;
  font: inherit;
  font-size: 13px;
  line-height: 1.5;
}

.notice {
  margin-top: 12px;
  color: var(--green);
  font-weight: 800;
}

.practice-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr) auto;
  gap: 12px;
  align-items: end;
}

.wrong-answer-card {
  margin-top: 18px;
}

.wrong-answer-stats {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 10px;
  margin-bottom: 14px;
}

.wrong-answer-stats article {
  border: 1px solid var(--border);
  border-radius: 12px;
  background: rgba(15,23,42,0.34);
  padding: 12px;
}

.wrong-answer-stats span,
.wrong-answer-item small {
  display: block;
  color: var(--text2);
  font-size: 12px;
  font-weight: 800;
}

.wrong-answer-stats strong {
  display: block;
  margin-top: 4px;
  color: var(--text);
  font-size: 24px;
}

.wrong-answer-list {
  display: grid;
  gap: 12px;
}

.wrong-answer-item {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 14px;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: rgba(51,65,85,0.56);
  padding: 14px;
}

.wrong-answer-item.repaired {
  border-color: rgba(16,185,129,0.4);
  background: rgba(16,185,129,0.08);
}

.wrong-answer-item h4 {
  margin-bottom: 6px;
}

.wrong-answer-item p {
  margin-bottom: 8px;
  color: var(--text2);
  line-height: 1.5;
}

.wrong-answer-actions {
  display: grid;
  min-width: 150px;
  gap: 8px;
  align-content: start;
}

.status-pill {
  display: inline-flex;
  justify-content: center;
  border-radius: 999px;
  padding: 7px 10px;
  font-size: 12px;
  font-weight: 900;
}

.status-pill.warning {
  background: rgba(245,158,11,0.16);
  color: #fcd34d;
}

.status-pill.success {
  background: rgba(16,185,129,0.16);
  color: #86efac;
}

/* Sub-nav pill bar — shown inside grouped tab sections */
.sub-nav {
  display: flex;
  gap: 6px;
  margin-bottom: 20px;
  flex-wrap: wrap;
}

.sub-nav-btn {
  border: 1px solid var(--border);
  border-radius: 999px;
  background: transparent;
  color: var(--text2);
  padding: 6px 16px;
  font-size: 13px;
  font-weight: 750;
  cursor: pointer;
  transition: background 0.15s, color 0.15s, border-color 0.15s;
}

.sub-nav-btn:hover {
  background: rgba(20,184,166,0.08);
  border-color: rgba(20,184,166,0.3);
  color: var(--text);
}

.sub-nav-btn.active {
  background: rgba(20,184,166,0.15);
  border-color: rgba(20,184,166,0.5);
  color: white;
}

/* More menu — hidden on desktop, shown on mobile via media query below */
.nav-more-btn,
.nav-more-panel,
.nav-more-backdrop {
  display: none;
}

@media (max-width: 820px) {
  .sidebar {
    position: fixed;
    inset: auto 0 0 0;
    z-index: 200;
    width: 100%;
    height: auto;
    border-top: 1px solid var(--border);
    border-right: 0;
  }

  .app {
    display: block;
  }

  .sidebar-header,
  .sidebar-footer {
    display: none;
  }

  .nav-list {
    display: grid;
    grid-auto-flow: column;
    grid-auto-columns: minmax(50px, 1fr);
    grid-template-columns: none;
    gap: 6px;
    overflow-x: auto;
    overscroll-behavior-x: contain;
    padding: 8px max(8px, env(safe-area-inset-right)) calc(8px + env(safe-area-inset-bottom)) max(8px, env(safe-area-inset-left));
    scrollbar-width: none;
  }

  .nav-list::-webkit-scrollbar {
    display: none;
  }

  .nav-item {
    display: grid;
    justify-items: center;
    gap: 4px;
    min-height: 54px;
    border-radius: 10px;
    padding: 7px 3px;
    text-align: center;
    font-size: 10px;
    line-height: 1;
    white-space: nowrap;
  }

  .nav-label {
    display: none;
  }

  .nav-number {
    display: grid;
    width: 22px;
    height: 22px;
    border-radius: 7px;
    font-size: 10px;
  }

  .nav-item::after {
    content: attr(data-mobile-label);
    display: block;
    max-width: 100%;
    overflow: hidden;
    color: inherit;
    text-overflow: ellipsis;
  }

  /* Hide secondary tabs from bottom bar; only show in More panel */
  .nav-secondary {
    display: none;
  }

  .option-key-hint {
    display: none;
  }

  /* More button — always visible on mobile */
  .nav-more-btn {
    display: grid;
  }

  .nav-more-icon {
    font-size: 16px;
    background: none;
    letter-spacing: 1px;
  }

  /* More panel — slides up from bottom bar */
  .nav-more-panel {
    position: fixed;
    bottom: calc(70px + env(safe-area-inset-bottom));
    left: 8px;
    right: 8px;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 10px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 8px;
    z-index: 200;
    transform: translateY(16px);
    opacity: 0;
    pointer-events: none;
    transition: transform 0.18s ease, opacity 0.18s ease;
  }

  .nav-more-panel.open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }

  .nav-more-panel .nav-item {
    display: grid;
    justify-items: center;
    gap: 4px;
    min-height: 54px;
    border-radius: 10px;
    padding: 7px 3px;
    text-align: center;
    font-size: 10px;
    line-height: 1;
    white-space: nowrap;
    border: 1px solid var(--border);
    background: rgba(255,255,255,0.03);
  }

  .nav-more-panel .nav-item::after {
    content: attr(data-mobile-label);
    display: block;
  }

  .nav-more-backdrop {
    display: none;
    position: fixed;
    inset: 0;
    z-index: 199;
  }

  .nav-more-backdrop.open {
    display: block;
  }

  .content {
    width: 100%;
    margin-left: 0;
    padding: 20px 20px calc(104px + env(safe-area-inset-bottom));
  }

  .stats-grid,
  .dashboard-grid,
  .dashboard-support-grid,
  .resource-grid,
  .notebook-grid,
  .flashcard-layout,
  .knowledge-flow,
  .practice-grid,
  .wrong-answer-item,
  .wrong-answer-stats,
  .tutor-shell,
  .learn-match-grid,
  .concept-summary,
  .concept-section-list,
  .concept-bottom-grid,
  .guided-review-intro,
  .guided-review-grid,
  .guided-review-columns,
  .topic-map,
  .topic-focus-grid,
  .diagnostic-summary,
  .mock-setup,
  .mock-status,
  .mock-report-grid,
  .material-workflow,
  .summary-grid {
    grid-template-columns: 1fr;
  }

  .question-selectors {
    justify-content: stretch;
  }

  .question-selectors select {
    width: 100%;
  }

  .tutor-shell {
    grid-template-areas:
      "disclosure"
      "messages"
      "matches"
      "compose";
  }

  .tutor-message {
    max-width: 100%;
  }

  .tutor-compose-actions,
  .tutor-example-prompts,
  .tutor-next-actions {
    align-items: stretch;
    flex-direction: column;
  }

  .tutor-example-prompt,
  .tutor-next-action {
    width: 100%;
    text-align: left;
  }

  .tracker-row {
    grid-template-columns: 1fr;
    gap: 12px;
  }

  .tracker-row.header {
    display: none;
  }

  .tracker-row:not(.header) > [data-label] {
    display: grid;
    grid-template-columns: 76px minmax(0, 1fr);
    gap: 12px;
    align-items: start;
  }

  .tracker-row:not(.header) > [data-label]::before,
  .tracker-field span {
    color: var(--text2);
    font-size: 11px;
    font-weight: 900;
    line-height: 1.25;
    text-transform: uppercase;
  }

  .tracker-row:not(.header) > [data-label]::before {
    content: attr(data-label);
    padding-top: 3px;
  }

  .tracker-field span {
    display: none;
  }

  .tracker-row input {
    width: 100%;
  }

  .today-primary {
    grid-template-columns: 1fr;
  }

  .learn-focus-header,
  .learn-coverage-header {
    display: grid;
  }

  .coverage-meter {
    justify-items: start;
  }

  .learn-day-item {
    grid-template-columns: 1fr;
  }

  .week-day-line {
    grid-template-columns: 1fr;
  }
}

.tutor-mode-picker {
  display: flex;
  gap: 6px;
  padding: 8px 12px 0;
}
.tutor-mode-btn {
  padding: 4px 10px;
  border-radius: 12px;
  border: 1px solid var(--border, #ddd);
  background: transparent;
  font-size: 0.78rem;
  cursor: pointer;
  color: var(--text-secondary, #666);
}
.tutor-mode-btn.active {
  background: var(--accent, #2563eb);
  color: #fff;
  border-color: var(--accent, #2563eb);
}

.drill-block { margin-top: 12px; border: 1px solid var(--border, #ddd); border-radius: 6px; padding: 8px 12px; }
.drill-block summary { cursor: pointer; font-size: 0.85rem; color: var(--accent, #2563eb); }
.drill-question { white-space: pre-wrap; font-size: 0.85rem; margin-top: 8px; }
.drill-loading { font-size: 0.8rem; color: var(--text-secondary, #888); }