body {
  margin: 0;
  background: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-sans);
}

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

button {
  cursor: pointer;
}

a {
  color: inherit;
}

.skip-link {
  background: var(--color-text);
  color: var(--color-bg);
  left: var(--space-4);
  padding: var(--space-2) var(--space-3);
  position: fixed;
  top: -100px;
  z-index: var(--z-skip-link);
}

.skip-link:focus {
  top: var(--space-4);
}

.app-shell {
  min-height: 100vh;
}

.topbar {
  align-items: center;
  background: color-mix(in srgb, var(--color-bg) 92%, transparent);
  border-bottom: 1px solid var(--color-border);
  display: flex;
  gap: var(--space-4);
  justify-content: space-between;
  padding: var(--space-3) clamp(var(--space-4), 4vw, var(--space-8));
  position: sticky;
  top: 0;
  z-index: var(--z-sticky);
  backdrop-filter: blur(16px);
}

.pilot-banner {
  align-items: center;
  background: #fff7ed;
  border-bottom: 1px solid #fed7aa;
  color: #7c2d12;
  display: flex;
  gap: var(--space-2);
  justify-content: center;
  padding: var(--space-2) var(--space-4);
}

.brand {
  align-items: center;
  display: inline-flex;
  gap: var(--space-3);
  min-width: 210px;
  text-decoration: none;
}

.brand-mark {
  align-items: center;
  background: var(--color-accent);
  border-radius: var(--radius-md);
  color: var(--color-accent-contrast);
  display: inline-flex;
  font-weight: 800;
  height: 42px;
  justify-content: center;
  width: 42px;
}

.brand-title,
.brand-subtitle {
  display: block;
}

.brand-title {
  font-weight: 850;
}

.brand-subtitle {
  color: var(--color-muted);
  font-size: var(--font-size-sm);
}

.utility-nav {
  align-items: center;
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-1);
  justify-content: flex-end;
}

.shell-layout {
  display: grid;
  grid-template-columns: 220px minmax(0, 1fr);
}

.left-rail {
  align-content: start;
  border-right: 1px solid var(--color-border);
  display: grid;
  gap: var(--space-2);
  min-height: calc(100vh - 72px);
  padding: var(--space-4);
  position: sticky;
  top: 72px;
}

.bottom-nav {
  display: none;
}

.nav-link,
.theme-toggle {
  align-items: center;
  background: transparent;
  border: 1px solid transparent;
  border-radius: var(--radius-md);
  color: var(--color-muted);
  display: inline-flex;
  min-height: 40px;
  padding: var(--space-2) var(--space-3);
  text-decoration: none;
}

.nav-link:hover,
.nav-link:focus-visible,
.nav-link[aria-current="page"],
.theme-toggle:hover,
.theme-toggle:focus-visible {
  background: var(--color-surface-alt);
  color: var(--color-text);
  outline: none;
}

.theme-toggle {
  border-color: var(--color-border);
}

.main {
  min-height: calc(100vh - 72px);
}

.today-page,
.learn-page,
.exam-page,
.exam-runner,
.coverage-page,
.topic-page,
.you-page,
.doc-page,
.onboarding-screen,
.session-page {
  margin: 0 auto;
  max-width: 1180px;
  padding: var(--space-5) clamp(var(--space-4), 4vw, var(--space-8)) var(--space-8);
}

.topic-page,
.session-page {
  display: grid;
  gap: var(--space-4);
  max-width: 860px;
}

.session-topbar {
  align-items: center;
  display: flex;
  gap: var(--space-4);
  justify-content: space-between;
}

.session-question h2 {
  font-size: clamp(1.35rem, 2.5vw, 2rem);
  line-height: 1.25;
}

.today-grid {
  display: grid;
  gap: var(--space-4);
  grid-template-columns: minmax(0, 1.25fr) repeat(2, minmax(220px, 0.7fr));
}

.learn-tree,
.learn-board,
.learn-class,
.learn-subject,
.learn-unit {
  display: grid;
  gap: var(--space-4);
}

.learn-board {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-5);
}

.learn-subjects,
.topic-layout {
  display: grid;
  gap: var(--space-4);
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
}

.learn-row {
  align-items: center;
  display: flex;
  gap: var(--space-3);
  justify-content: space-between;
}

.topic-grid {
  display: grid;
  gap: var(--space-2);
}

.topic-tile {
  align-items: center;
  background: var(--color-surface-alt);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  color: var(--color-text);
  display: grid;
  gap: var(--space-1);
  padding: var(--space-3);
  text-decoration: none;
}

.topic-tile:hover,
.topic-tile:focus-visible {
  border-color: var(--color-accent);
  box-shadow: var(--shadow-focus);
}

.mastery-badge {
  align-self: start;
  border: 1px solid var(--color-border);
  border-radius: 999px;
  color: var(--color-muted);
  display: inline-flex;
  font-size: 0.76rem;
  font-weight: 800;
  justify-self: start;
  line-height: 1;
  padding: 0.35rem 0.55rem;
}

.mastery-badge.is-good {
  background: rgba(7, 121, 106, 0.12);
  border-color: rgba(7, 121, 106, 0.28);
  color: var(--color-accent);
}

.mastery-badge.is-warn {
  background: rgba(184, 121, 12, 0.12);
  border-color: rgba(184, 121, 12, 0.28);
  color: #8a5a09;
}

.mastery-badge.is-danger {
  background: rgba(180, 35, 24, 0.1);
  border-color: rgba(180, 35, 24, 0.24);
  color: #b42318;
}

.prereq-list {
  display: grid;
  gap: var(--space-2);
  list-style: none;
  margin: 0;
  padding: 0;
}

.prereq-list li {
  align-items: center;
  display: flex;
  gap: var(--space-2);
  justify-content: space-between;
}

.you-grid {
  display: grid;
  gap: var(--space-4);
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

.settings-card {
  grid-column: span 2;
}

.toggle-group {
  border: 0;
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin: 0;
  padding: 0;
}

.toggle-group legend {
  flex-basis: 100%;
  font-weight: 800;
}

.toggle-option {
  align-items: center;
  background: var(--color-surface-alt);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  display: inline-flex;
  gap: var(--space-1);
  padding: 0.45rem 0.65rem;
}

.toggle-option:has(input:checked) {
  border-color: var(--color-accent);
  box-shadow: inset 0 0 0 1px var(--color-accent);
}

.button.danger {
  background: #b42318;
  border-color: #b42318;
  color: #fff;
}

.link-row {
  border-bottom: 1px solid var(--color-border);
  color: var(--color-text);
  display: block;
  font-weight: 800;
  padding: var(--space-2) 0;
  text-decoration: none;
}

.link-row:hover,
.link-row:focus-visible {
  color: var(--color-accent);
}

.doc-page {
  display: grid;
  gap: var(--space-4);
}

.doc-section {
  max-width: 100%;
}

.table-wrap {
  overflow-x: auto;
}

.data-table {
  border-collapse: collapse;
  min-width: 680px;
  width: 100%;
}

.data-table th,
.data-table td {
  border-bottom: 1px solid var(--color-border);
  padding: var(--space-2);
  text-align: left;
  vertical-align: top;
}

.exam-grid,
.exam-layout {
  display: grid;
  gap: var(--space-4);
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

.timer {
  background: var(--color-text);
  border-radius: var(--radius-sm);
  color: var(--color-bg);
  font-size: 1.2rem;
  padding: var(--space-2) var(--space-3);
}

.exam-palette {
  align-self: start;
}

.palette-grid {
  display: grid;
  gap: var(--space-2);
  grid-template-columns: repeat(5, 36px);
}

.palette-dot {
  align-items: center;
  background: var(--color-surface-alt);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  display: inline-flex;
  font-weight: 800;
  height: 36px;
  justify-content: center;
  width: 36px;
}

.palette-dot.is-answered {
  background: rgba(7, 121, 106, 0.12);
  border-color: rgba(7, 121, 106, 0.28);
}

.palette-dot.is-flagged {
  box-shadow: inset 0 -3px 0 #b8790c;
}

.today-continue {
  grid-row: span 2;
}

.progress-dots,
.week-strip {
  display: flex;
  gap: var(--space-2);
  margin-top: var(--space-4);
}

.progress-dots span,
.week-strip span {
  align-items: center;
  background: var(--color-surface-alt);
  border: 1px solid var(--color-border);
  border-radius: 999px;
  display: inline-flex;
  height: 28px;
  justify-content: center;
  min-width: 28px;
}

.progress-dots span {
  height: 10px;
  min-width: 10px;
}

.progress-dots .is-filled,
.week-strip .is-active {
  background: var(--color-accent);
  border-color: var(--color-accent);
  color: var(--color-accent-contrast);
}

.onboarding-screen {
  align-content: center;
  display: grid;
  gap: var(--space-5);
  min-height: calc(100vh - 180px);
}

.onboarding-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  display: grid;
  gap: var(--space-4);
  max-width: 760px;
  padding: var(--space-5);
}

.onboarding-card h1 {
  font-size: clamp(2rem, 5vw, 4rem);
  line-height: 1;
  margin: 0;
}

.chip-field {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  grid-column: 1 / -1;
  margin: 0;
  padding: var(--space-4);
}

.chip-field.stacked {
  display: grid;
}

.option-chip {
  align-items: center;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  display: inline-flex;
  gap: var(--space-2);
  min-height: 44px;
  padding: var(--space-2) var(--space-3);
}

.option-chip:has(input:checked) {
  background: var(--color-accent-soft);
  border-color: var(--color-accent);
}

.compact-row {
  margin-top: 0;
}

.page {
  margin: 0 auto;
  max-width: 1180px;
  padding: clamp(var(--space-5), 5vw, var(--space-10)) clamp(var(--space-4), 4vw, var(--space-8));
}

.hero {
  display: grid;
  gap: var(--space-6);
  grid-template-columns: minmax(0, 1.1fr) minmax(280px, 0.9fr);
}

.eyebrow {
  color: var(--color-accent);
  font-size: var(--font-size-xs);
  font-weight: 850;
  letter-spacing: 0;
  margin: 0 0 var(--space-2);
  text-transform: uppercase;
}

.page-title {
  font-size: clamp(2.2rem, 6vw, 5.4rem);
  line-height: 0.95;
  margin: 0;
  max-width: 800px;
}

.page-lede {
  color: var(--color-muted);
  font-size: clamp(1rem, 1.6vw, 1.25rem);
  line-height: 1.65;
  max-width: 760px;
}

.grid {
  display: grid;
  gap: var(--space-4);
}

.grid.three {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.grid.two {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.stack {
  display: grid;
  gap: var(--space-4);
}

.section {
  margin-top: clamp(var(--space-7), 8vw, var(--space-12));
}

.practice-workbench {
  margin: 0 auto;
  max-width: 1180px;
  padding: var(--space-5) clamp(var(--space-4), 4vw, var(--space-8)) var(--space-8);
}

.dashboard-workbench {
  margin: 0 auto;
  max-width: 1180px;
  padding: var(--space-5) clamp(var(--space-4), 4vw, var(--space-8)) var(--space-8);
}

.practice-topline {
  align-items: end;
  display: grid;
  gap: var(--space-4);
  grid-template-columns: minmax(0, 1fr) auto;
  margin-bottom: var(--space-5);
}

.workbench-title {
  font-size: clamp(1.8rem, 3vw, 3rem);
  line-height: 1.05;
  margin: 0;
}

.workbench-lede {
  color: var(--color-muted);
  font-size: var(--font-size-md);
  line-height: 1.5;
  margin: var(--space-2) 0 0;
  max-width: 700px;
}

.quick-metrics {
  display: grid;
  gap: var(--space-2);
  grid-template-columns: repeat(3, minmax(72px, 1fr));
}

.quick-metrics article {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-3);
}

.quick-metrics strong,
.quick-metrics span {
  display: block;
}

.quick-metrics strong {
  color: var(--color-accent);
  font-size: var(--font-size-xl);
  line-height: 1;
}

.quick-metrics span {
  color: var(--color-muted);
  font-size: var(--font-size-xs);
  margin-top: var(--space-1);
}

.practice-grid {
  align-items: start;
  display: grid;
  gap: var(--space-5);
  grid-template-columns: minmax(0, 1fr) minmax(240px, 320px);
}

.practice-host {
  min-width: 0;
}

.practice-sidebar {
  display: grid;
  gap: var(--space-4);
}

.practice-session,
.study-path-layout {
  align-items: start;
  display: grid;
  gap: var(--space-4);
  grid-template-columns: minmax(220px, 300px) minmax(0, 1fr);
}

.topic-picker {
  display: grid;
  gap: var(--space-3);
  position: sticky;
  top: 92px;
}

.path-card,
.path-list {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  display: grid;
  gap: var(--space-2);
  padding: var(--space-3);
}

.path-card strong,
.path-card span {
  display: block;
}

.path-card span,
.path-label {
  color: var(--color-muted);
  font-size: var(--font-size-sm);
  margin: 0;
}

.path-button {
  background: transparent;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  color: var(--color-text);
  min-height: 36px;
  padding: var(--space-2);
  text-align: left;
}

.path-button:hover,
.path-button:focus-visible,
.path-button[aria-pressed="true"] {
  background: var(--color-surface-alt);
  border-color: var(--color-accent);
  outline: none;
}

.card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  padding: var(--space-5);
}

.card h2,
.card h3 {
  margin-top: 0;
}

.card p,
.muted {
  color: var(--color-muted);
  line-height: 1.65;
}

.metric {
  color: var(--color-accent);
  display: block;
  font-size: var(--font-size-xxl);
  font-weight: 900;
  line-height: 1;
}

.button-row {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  margin-top: var(--space-5);
}

.button {
  align-items: center;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  display: inline-flex;
  font-weight: 750;
  min-height: 44px;
  padding: var(--space-2) var(--space-4);
  text-decoration: none;
}

.button.primary {
  background: var(--color-accent);
  border-color: var(--color-accent);
  color: var(--color-accent-contrast);
}

.button.secondary {
  background: var(--color-surface);
  color: var(--color-text);
}

.button:hover,
.button:focus-visible {
  box-shadow: var(--shadow-focus);
  outline: none;
}

.chip {
  align-items: center;
  background: var(--color-accent-soft);
  border: 1px solid color-mix(in srgb, var(--color-accent) 45%, var(--color-border));
  border-radius: 999px;
  color: var(--color-text);
  display: inline-flex;
  font-size: var(--font-size-sm);
  min-height: 32px;
  padding: var(--space-1) var(--space-3);
}

.field {
  display: grid;
  gap: var(--space-2);
  width: min(100%, 360px);
}

.field span {
  color: var(--color-muted);
  font-size: var(--font-size-sm);
  font-weight: 700;
}

.field input,
.field select {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  color: var(--color-text);
  min-height: 44px;
  padding: var(--space-2) var(--space-3);
}

.field input:focus,
.field select:focus {
  box-shadow: var(--shadow-focus);
  outline: none;
}

.setup-card {
  display: grid;
  gap: var(--space-5);
}

.setup-grid {
  display: grid;
  gap: var(--space-4);
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.setup-grid fieldset {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  display: grid;
  gap: var(--space-2);
  grid-column: 1 / -1;
  margin: 0;
  padding: var(--space-4);
}

.setup-grid legend {
  color: var(--color-muted);
  font-size: var(--font-size-sm);
  font-weight: 800;
  padding: 0 var(--space-2);
}

.setup-grid label {
  align-items: center;
  display: inline-flex;
  gap: var(--space-2);
}

.dashboard-grid {
  display: grid;
  gap: var(--space-4);
  grid-template-columns: minmax(0, 1.4fr) minmax(220px, 0.8fr) minmax(220px, 0.8fr);
}

.practice-host .field {
  width: 100%;
}

.answer-zone {
  display: grid;
  gap: var(--space-3);
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

.question-host .card {
  padding: var(--space-4);
}

.question-host .card h2 {
  font-size: clamp(1.2rem, 2vw, 1.55rem);
  line-height: 1.25;
}

.question-host .button-row {
  margin-top: var(--space-3);
}

.math-inline {
  background: transparent;
  border: 0;
  border-radius: 0;
  display: inline;
  align-items: center;
  gap: 0.16em;
  font-family: Georgia, "Times New Roman", serif;
  font-size: 1.04em;
  line-height: inherit;
  margin: 0 0.1em;
  padding: 0;
  vertical-align: baseline;
}

.math-frac {
  align-items: center;
  display: inline-grid;
  font-size: 0.9em;
  grid-template-rows: auto auto;
  justify-items: center;
  line-height: 1.05;
  margin: 0 0.12em;
  vertical-align: middle;
}

.math-frac span:first-child {
  border-bottom: 1px solid currentColor;
  padding: 0 0.18em 0.08em;
}

.math-frac span:last-child {
  padding: 0.08em 0.18em 0;
}

.math-radical {
  border-top: 1px solid currentColor;
  padding-left: 0.12em;
}

.search-results {
  display: grid;
  gap: var(--space-2);
  grid-template-columns: 1fr;
  max-height: 460px;
  overflow: auto;
}

.search-results .choice {
  align-items: start;
  display: grid;
  gap: var(--space-1);
  text-align: left;
}

.choice {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  color: var(--color-text);
  min-height: 46px;
  padding: var(--space-2) var(--space-3);
  text-align: left;
}

.choice:hover,
.choice:focus-visible,
.choice[aria-pressed="true"] {
  border-color: var(--color-accent);
  box-shadow: var(--shadow-focus);
  outline: none;
}

.modal {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  color: var(--color-text);
  max-width: 520px;
  padding: var(--space-5);
}

.tooltip-wrap {
  display: inline-flex;
  position: relative;
}

.tooltip {
  background: var(--color-text);
  border-radius: var(--radius-sm);
  bottom: calc(100% + var(--space-2));
  color: var(--color-bg);
  font-size: var(--font-size-sm);
  left: 0;
  max-width: 220px;
  opacity: 0;
  padding: var(--space-2) var(--space-3);
  pointer-events: none;
  position: absolute;
  transform: translateY(4px);
  transition: opacity 140ms ease, transform 140ms ease;
  z-index: var(--z-sticky);
}

.tooltip-wrap:hover .tooltip,
.tooltip-wrap:focus-within .tooltip {
  opacity: 1;
  transform: translateY(0);
}

.status-list {
  display: grid;
  gap: var(--space-3);
  margin: 0;
  padding: 0;
}

.status-list li {
  align-items: start;
  display: grid;
  gap: var(--space-3);
  grid-template-columns: auto minmax(0, 1fr);
  list-style: none;
}

.status-dot {
  background: var(--color-accent-soft);
  border: 1px solid var(--color-accent);
  border-radius: 999px;
  height: 12px;
  margin-top: 0.45rem;
  width: 12px;
}

.panel {
  background: var(--color-surface-alt);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-5);
}

.kbd-grid {
  display: grid;
  gap: var(--space-3);
}

.kbd-row {
  align-items: center;
  display: flex;
  gap: var(--space-3);
  justify-content: space-between;
}

kbd {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  box-shadow: inset 0 -1px 0 var(--color-border);
  min-width: 34px;
  padding: var(--space-1) var(--space-2);
  text-align: center;
}

.file-input-hidden {
  height: 1px;
  opacity: 0;
  overflow: hidden;
  position: absolute;
  width: 1px;
}

.shortcut-legend {
  color: var(--color-muted);
  font-size: 0.9rem;
}

.shortcut-legend summary {
  cursor: pointer;
  font-weight: 800;
}

.footer {
  border-top: 1px solid var(--color-border);
  color: var(--color-muted);
  padding: var(--space-5) clamp(var(--space-4), 4vw, var(--space-8));
}

@media (max-width: 860px) {
  .topbar,
  .shell-layout,
  .today-grid,
  .hero,
  .practice-topline,
  .practice-grid,
  .practice-session,
  .study-path-layout,
  .setup-grid,
  .dashboard-grid,
  .grid.three,
  .grid.two {
    grid-template-columns: 1fr;
  }

  .topbar {
    align-items: stretch;
    display: grid;
  }

  .left-rail {
    display: none;
  }

  .bottom-nav {
    background: var(--color-surface);
    border-top: 1px solid var(--color-border);
    bottom: 0;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(56px, 1fr));
    left: 0;
    position: fixed;
    right: 0;
    z-index: var(--z-sticky);
  }

  .bottom-nav .nav-link {
    border-radius: 0;
    font-size: var(--font-size-xs);
    justify-content: center;
    min-height: 56px;
    padding: var(--space-2);
  }

  .main {
    padding-bottom: 72px;
  }

  .quick-metrics {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .topic-picker {
    position: static;
  }

  .answer-zone {
    grid-template-columns: 1fr;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    scroll-behavior: auto !important;
    transition-duration: 0.001ms !important;
  }
}

/* === Claude UX polish (post-Day-14) === */

/* Today: header layout */
.today-header {
  align-items: flex-start;
  display: grid;
  gap: var(--space-4);
  grid-template-columns: minmax(0, 1.6fr) minmax(0, 1fr);
  margin-bottom: var(--space-5);
}

/* Today: at-a-glance metric trio */
.quick-metrics {
  display: grid;
  gap: var(--space-2);
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.metric-card {
  align-items: baseline;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  display: grid;
  gap: var(--space-1);
  padding: var(--space-3);
}

.metric-card strong {
  font-size: var(--font-size-xl);
  font-weight: 850;
  line-height: 1;
}

.metric-card span {
  color: var(--color-muted);
  font-size: var(--font-size-sm);
}

/* Today: weak-list */
.weak-list {
  display: grid;
  gap: var(--space-1);
  list-style: none;
  margin: 0;
  padding: 0;
}

.weak-list li {
  border-left: 3px solid var(--color-warning);
  color: var(--color-text);
  padding: var(--space-1) var(--space-2);
}

/* ContinueCard: honest session breakdown chips */
.continue-breakdown {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-1);
  margin-top: var(--space-2);
}

.continue-chip {
  align-items: center;
  border: 1px solid var(--color-border);
  border-radius: 999px;
  color: var(--color-muted);
  display: inline-flex;
  font-size: var(--font-size-xs);
  font-weight: 700;
  padding: 0.2rem 0.55rem;
}

.continue-chip.is-due {
  background: rgba(184, 121, 12, 0.12);
  border-color: rgba(184, 121, 12, 0.32);
  color: #8a5a09;
}

.continue-chip.is-weak {
  background: rgba(180, 35, 24, 0.1);
  border-color: rgba(180, 35, 24, 0.28);
  color: #b42318;
}

.continue-chip.is-new {
  background: rgba(7, 121, 106, 0.12);
  border-color: rgba(7, 121, 106, 0.28);
  color: var(--color-accent);
}

.today-continue h2 {
  margin-top: var(--space-1);
}

/* Skeletons */
.skeleton {
  background: linear-gradient(
    90deg,
    var(--color-surface-alt) 0%,
    color-mix(in srgb, var(--color-surface-alt) 65%, var(--color-border)) 50%,
    var(--color-surface-alt) 100%
  );
  background-size: 200% 100%;
  border-radius: var(--radius-sm);
  display: block;
}

@media (prefers-reduced-motion: no-preference) {
  .skeleton {
    animation: skeleton-shimmer 1.6s ease-in-out infinite;
  }
}

@keyframes skeleton-shimmer {
  0% { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

.skeleton-line {
  height: 0.85rem;
  margin: var(--space-2) 0;
  width: 70%;
}

.skeleton-line.short {
  width: 35%;
}

.skeleton-block {
  height: 4.5rem;
  margin: var(--space-3) 0;
  width: 100%;
}

.skeleton-card {
  min-height: 12rem;
}

.session-skeleton {
  min-height: 18rem;
}

/* Session: complete screen + lists */
.session-complete h1 {
  font-size: clamp(1.3rem, 2.6vw, 1.9rem);
  line-height: 1.2;
}

.complete-list {
  display: grid;
  gap: var(--space-1);
  list-style: none;
  margin: 0;
  padding: 0;
}

.complete-list li {
  background: var(--color-surface-alt);
  border-radius: var(--radius-sm);
  padding: var(--space-2) var(--space-3);
}

/* Session: action row, ensure ≥44px tap targets */
.session-actions .button {
  min-height: 44px;
}

/* AnswerInput: friendly numeric field */
.answer-field input {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  font-size: var(--font-size-lg);
  min-height: 48px;
  padding: var(--space-2) var(--space-3);
}

.answer-field input:focus-visible {
  border-color: var(--color-accent);
  box-shadow: var(--shadow-focus);
  outline: none;
}

.answer-field small {
  color: var(--color-muted);
  font-size: var(--font-size-xs);
  margin-top: var(--space-1);
}

/* Choice buttons: bigger tap target, clearer pressed state */
.choice {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  color: var(--color-text);
  display: block;
  font-size: var(--font-size-md);
  min-height: 48px;
  padding: var(--space-3);
  text-align: left;
  width: 100%;
}

.choice + .choice {
  margin-top: var(--space-2);
}

.choice[aria-pressed="true"] {
  background: var(--color-accent-soft);
  border-color: var(--color-accent);
  color: var(--color-accent);
  font-weight: 700;
}

.choice:focus-visible {
  box-shadow: var(--shadow-focus);
  outline: none;
}

/* Crisis panel: calm, not alarming */
.crisis-panel {
  display: grid;
  gap: var(--space-2);
}

.crisis-resources li {
  align-items: flex-start;
  gap: var(--space-2);
}

.crisis-resources li strong {
  display: block;
}

/* Mobile collapses today header into stacked layout */
@media (max-width: 860px) {
  .today-header {
    grid-template-columns: 1fr;
  }
  .quick-metrics {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

/* === Identity chip in topbar === */
.identity-chip {
  align-items: center;
  background: var(--color-surface-alt);
  border: 1px solid var(--color-border);
  border-radius: 999px;
  color: var(--color-text);
  display: inline-flex;
  gap: var(--space-1);
  max-width: 14rem;
  min-height: 40px;
  padding: 0.3rem 0.7rem 0.3rem 0.4rem;
  text-decoration: none;
}

.identity-chip:hover,
.identity-chip:focus-visible {
  background: var(--color-accent-soft);
  border-color: var(--color-accent);
  color: var(--color-accent);
  outline: none;
}

.identity-avatar {
  font-size: 1.15rem;
  line-height: 1;
}

.identity-name {
  font-weight: 700;
  max-width: 10rem;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* === TrackSwitcher === */
.track-switcher {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  display: grid;
  gap: var(--space-2);
  margin-bottom: var(--space-4);
  padding: var(--space-3) var(--space-4);
}

.switch-label {
  color: var(--color-muted);
  font-size: var(--font-size-xs);
  font-weight: 800;
  letter-spacing: 0.02em;
  margin: 0;
  text-transform: uppercase;
}

.switch-row {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-1);
}

.switch-chip {
  background: transparent;
  border: 1px solid var(--color-border);
  border-radius: 999px;
  color: var(--color-muted);
  font-size: var(--font-size-sm);
  font-weight: 700;
  min-height: 36px;
  padding: 0.35rem 0.85rem;
}

.switch-chip:hover,
.switch-chip:focus-visible {
  border-color: var(--color-accent);
  color: var(--color-text);
  outline: none;
}

.switch-chip.is-active {
  background: var(--color-accent-soft);
  border-color: var(--color-accent);
  color: var(--color-accent);
}

/* === Nickname + avatar pickers (onboarding + /you) === */
.nickname-field {
  display: grid;
  gap: var(--space-2);
}

.nickname-row {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  align-items: center;
}

.nickname-row input[name="display_name"] {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  flex: 1 1 12rem;
  font-size: var(--font-size-md);
  min-height: 44px;
  padding: var(--space-2) var(--space-3);
}

.nickname-row input[name="display_name"]:focus-visible {
  border-color: var(--color-accent);
  box-shadow: var(--shadow-focus);
  outline: none;
}

.nickname-hint {
  font-size: var(--font-size-xs);
}

.avatar-picker {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-1);
}

.avatar-option {
  align-items: center;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  cursor: pointer;
  display: inline-flex;
  font-size: 1.35rem;
  height: 44px;
  justify-content: center;
  position: relative;
  width: 44px;
}

.avatar-option input {
  appearance: none;
  inset: 0;
  margin: 0;
  position: absolute;
}

.avatar-option:has(input:checked) {
  background: var(--color-accent-soft);
  border-color: var(--color-accent);
}

.avatar-option:focus-within {
  box-shadow: var(--shadow-focus);
}

.personalize-card {
  grid-column: 1 / -1;
}

.concept-card h3 {
  font-size: var(--font-size-sm);
  margin: 0 0 var(--space-1);
}

.concept-block {
  border-top: 1px solid var(--color-border);
  padding-top: var(--space-3);
}

.question-visual {
  background: var(--color-surface-alt);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  margin: 0;
  overflow: hidden;
}

.question-visual img {
  display: block;
  height: auto;
  max-height: 18rem;
  object-fit: contain;
  width: 100%;
}

.question-visual figcaption {
  border-top: 1px solid var(--color-border);
  color: var(--color-muted);
  font-size: var(--font-size-sm);
  padding: var(--space-2) var(--space-3);
}

/* === Coverage page: school and parent package specs === */
.coverage-dashboard,
.coverage-group,
.coverage-package-card {
  display: grid;
  gap: var(--space-4);
}

.coverage-trust-band {
  background: linear-gradient(135deg, var(--color-accent), color-mix(in srgb, var(--color-accent) 70%, #111827));
  border-radius: var(--radius-lg);
  color: var(--color-accent-contrast);
  display: grid;
  gap: var(--space-3);
  grid-template-columns: repeat(auto-fit, minmax(210px, 1fr));
  padding: clamp(var(--space-4), 3vw, var(--space-6));
}

.coverage-trust-card {
  background: color-mix(in srgb, var(--color-bg) 10%, transparent);
  border: 1px solid color-mix(in srgb, var(--color-accent-contrast) 28%, transparent);
  border-radius: var(--radius-md);
  display: grid;
  gap: var(--space-2);
  min-height: 9rem;
  padding: var(--space-4);
}

.coverage-trust-card strong {
  font-size: var(--font-size-lg);
}

.coverage-trust-card span {
  color: color-mix(in srgb, var(--color-accent-contrast) 86%, transparent);
  font-size: var(--font-size-sm);
  line-height: 1.5;
}

.coverage-metrics {
  display: grid;
  gap: var(--space-3);
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
}

.coverage-explainer,
.coverage-package-grid {
  display: grid;
  gap: var(--space-4);
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

.coverage-group {
  margin-top: var(--space-5);
}

.coverage-group-heading,
.coverage-card-head,
.coverage-depth-row {
  align-items: center;
  display: flex;
  gap: var(--space-3);
  justify-content: space-between;
}

.coverage-group-heading h2,
.coverage-card-head h3 {
  margin: 0;
}

.coverage-group-total,
.coverage-status-pill {
  background: var(--color-accent-soft);
  border: 1px solid var(--color-accent);
  border-radius: 999px;
  color: var(--color-accent);
  font-size: var(--font-size-sm);
  padding: 0.35rem 0.75rem;
  white-space: nowrap;
}

.coverage-package-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: 0 12px 32px color-mix(in srgb, var(--color-text) 8%, transparent);
  padding: var(--space-4);
}

.coverage-depth {
  display: grid;
  gap: var(--space-2);
}

.coverage-depth-row {
  display: grid;
  grid-template-columns: minmax(5.5rem, 0.8fr) minmax(7rem, 1.5fr) 3rem;
}

.coverage-depth-row span,
.coverage-depth-row strong {
  font-size: var(--font-size-sm);
}

.coverage-depth-row strong {
  text-align: right;
}

.coverage-progress {
  accent-color: var(--color-accent);
  appearance: none;
  background: var(--color-surface-alt);
  border: 1px solid var(--color-border);
  border-radius: 999px;
  height: 0.75rem;
  overflow: hidden;
  width: 100%;
}

.coverage-progress::-webkit-progress-bar {
  background: var(--color-surface-alt);
}

.coverage-progress::-webkit-progress-value {
  background: var(--color-accent);
  border-radius: 999px;
}

.coverage-progress::-moz-progress-bar {
  background: var(--color-accent);
  border-radius: 999px;
}

.coverage-spec-grid,
.coverage-facts {
  display: grid;
  gap: var(--space-2) var(--space-3);
  grid-template-columns: minmax(7.5rem, 0.45fr) minmax(0, 1fr);
  margin: 0;
}

.coverage-spec-grid dt,
.coverage-facts dt {
  color: var(--color-muted);
  font-size: var(--font-size-sm);
  font-weight: 800;
}

.coverage-spec-grid dd,
.coverage-facts dd {
  margin: 0;
  overflow-wrap: anywhere;
}

.coverage-unit-list {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-1);
}

.coverage-unit-chip {
  background: var(--color-surface-alt);
  border: 1px solid var(--color-border);
  border-radius: 999px;
  color: var(--color-muted);
  font-size: var(--font-size-xs);
  font-weight: 700;
  padding: 0.3rem 0.65rem;
}

.coverage-details {
  border-top: 1px solid var(--color-border);
  padding-top: var(--space-3);
}

.coverage-details summary {
  cursor: pointer;
  font-weight: 800;
}

@media (max-width: 860px) {
  .personalize-card .nickname-row input[name="display_name"] {
    flex: 1 1 100%;
  }

  .coverage-group-heading,
  .coverage-card-head {
    align-items: flex-start;
    flex-direction: column;
  }

  .coverage-depth-row,
  .coverage-spec-grid,
  .coverage-facts {
    grid-template-columns: 1fr;
  }

  .coverage-depth-row strong {
    text-align: left;
  }
}