:root {
  color-scheme: light;
  --page: #f6f9fc;
  --surface: #ffffff;
  --surface-soft: #eef5fb;
  --surface-warm: #fbf7ee;
  --ink: #102033;
  --muted: #53677f;
  --line: #d7e3ef;
  --line-strong: #aec2d8;
  --blue: #145cff;
  --blue-deep: #123f9a;
  --green: #167463;
  --amber: #a05b00;
  --danger: #b42318;
  --shadow: 0 18px 48px rgba(16, 32, 51, 0.08);
  --radius: 8px;
  --font: "Avenir Next", "Segoe UI", ui-sans-serif, system-ui, sans-serif;
  --mono: "SFMono-Regular", Consolas, ui-monospace, monospace;
}

* {
  box-sizing: border-box;
}

html {
  min-height: 100%;
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  overflow-x: hidden;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.88), rgba(246, 249, 252, 0.96)),
    radial-gradient(circle at 20% 0%, rgba(20, 92, 255, 0.10), transparent 34%),
    var(--page);
  color: var(--ink);
  font-family: var(--font);
  line-height: 1.48;
  -webkit-tap-highlight-color: rgba(20, 92, 255, 0.12);
  touch-action: manipulation;
}

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

button {
  cursor: pointer;
}

button:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible,
a:focus-visible,
summary:focus-visible {
  outline: 3px solid rgba(20, 92, 255, 0.28);
  outline-offset: 2px;
}

.auth-gate {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 24px;
}

.auth-card {
  width: min(100%, 520px);
  display: grid;
  gap: 12px;
}

.auth-gate[hidden],
.auth-card[hidden],
#appHeader[hidden],
#appShell[hidden],
#main[hidden] {
  display: none;
}

.auth-card h1 {
  margin: 0;
}

.skip-link {
  position: fixed;
  left: 16px;
  top: 16px;
  z-index: 40;
  transform: translateY(-150%);
  border-radius: var(--radius);
  background: var(--blue-deep);
  color: #fff;
  padding: 10px 14px;
}

.skip-link:focus {
  transform: translateY(0);
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 30;
  display: grid;
  grid-template-columns: minmax(240px, 0.9fr) minmax(260px, 1.2fr) auto;
  gap: 18px;
  align-items: center;
  min-height: 72px;
  padding: 14px 22px;
  border-bottom: 1px solid var(--line);
  background: rgba(246, 249, 252, 0.90);
  backdrop-filter: blur(18px);
}

.brand {
  display: flex;
  min-width: 0;
  gap: 12px;
  align-items: center;
}

.brand-mark {
  display: grid;
  width: 42px;
  height: 42px;
  flex: 0 0 auto;
  place-items: center;
  border-radius: var(--radius);
  background: var(--ink);
  color: #fff;
  font-weight: 800;
}

.brand strong,
.brand span {
  display: block;
}

.brand strong {
  line-height: 1.1;
}

.brand span {
  color: var(--muted);
  font-size: 13px;
}

.search {
  display: grid;
  gap: 5px;
  color: var(--muted);
  font-size: 12px;
}

input,
select,
textarea {
  width: 100%;
  min-height: 40px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
  color: var(--ink);
  padding: 10px 12px;
}

textarea {
  min-height: 120px;
  resize: vertical;
}

.topbar-actions,
.button-row,
.toolbar,
.item-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
}

.topbar-actions {
  justify-content: end;
}

.service-pill,
.badge {
  display: inline-flex;
  align-items: center;
  min-height: 28px;
  border-radius: var(--radius);
  padding: 0 9px;
  font-size: 12px;
  font-weight: 750;
}

.service-pill {
  border: 1px solid rgba(22, 116, 99, 0.18);
  background: #eef8f4;
  color: var(--green);
}

.mode-switch {
  display: flex;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
}

.mode-button,
.icon-button,
.nav-item,
.primary-action,
.secondary-action,
.tree-node,
.folder-chip {
  min-height: 40px;
  border: 1px solid transparent;
  border-radius: var(--radius);
  padding: 0 14px;
  transition:
    border-color 140ms ease,
    background-color 140ms ease,
    color 140ms ease,
    transform 140ms ease;
}

.mode-button {
  border-radius: 0;
  background: transparent;
  color: var(--muted);
}

.mode-button.is-active {
  background: var(--blue);
  color: #fff;
}

.icon-button,
.secondary-action {
  border-color: var(--line);
  background: #fff;
  color: var(--ink);
}

.primary-action {
  border-color: var(--blue);
  background: var(--blue);
  color: #fff;
}

.icon-button:hover,
.secondary-action:hover,
.nav-item:hover,
.tree-node:hover,
.folder-chip:hover {
  border-color: var(--line-strong);
  background: var(--surface-soft);
}

.primary-action:hover {
  background: var(--blue-deep);
}

.feedback-float {
  position: fixed;
  inset: auto max(22px, env(safe-area-inset-right)) max(22px, env(safe-area-inset-bottom)) auto;
  z-index: 90;
  width: auto;
  min-width: 44px;
  min-height: 48px;
  margin: 0;
  border: 1px solid var(--blue);
  border-radius: 999px;
  background: var(--blue);
  box-shadow: 0 14px 36px rgba(20, 92, 255, 0.28);
  color: #fff;
  padding: 0 20px;
  font-weight: 800;
}

.feedback-float:hover {
  background: var(--blue-deep);
}

.feedback-dialog {
  position: fixed;
  inset: 0;
  width: 100vw;
  max-width: none;
  height: 100dvh;
  max-height: none;
  margin: 0;
  border: 0;
  background: transparent;
  overflow: hidden;
  place-items: center;
  padding:
    max(22px, env(safe-area-inset-top))
    max(22px, env(safe-area-inset-right))
    max(22px, env(safe-area-inset-bottom))
    max(22px, env(safe-area-inset-left));
}

.feedback-dialog[open] {
  display: grid;
}

.feedback-dialog:not([open]),
.feedback-float[hidden],
.feedback-canvas-wrap[hidden] {
  display: none;
}

.feedback-dialog::backdrop {
  background: rgba(16, 32, 51, 0.42);
  backdrop-filter: blur(5px);
}

.feedback-card {
  position: relative;
  width: min(940px, 100%);
  max-height: calc(100dvh - max(22px, env(safe-area-inset-top)) - max(22px, env(safe-area-inset-bottom)));
  overflow: auto;
  overscroll-behavior: contain;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: var(--surface);
  box-shadow: 0 28px 90px rgba(16, 32, 51, 0.26);
  padding: 22px;
}

.feedback-heading,
.feedback-capture-head,
.feedback-submit-row {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  align-items: start;
}

.feedback-heading h1 {
  margin: 0;
  font-size: clamp(26px, 4vw, 38px);
}

.feedback-card > p {
  margin-bottom: 8px;
  color: var(--muted);
  font-size: 13px;
}

.feedback-context {
  font-weight: 700;
  overflow-wrap: anywhere;
}

.feedback-lifecycle {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 8px;
  margin: 12px 0 0;
  padding: 0;
  list-style: none;
}

.feedback-lifecycle-step {
  display: grid;
  gap: 5px;
  min-width: 0;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface-soft);
  padding: 10px;
}

.feedback-lifecycle-step.is-blocked {
  color: var(--muted);
  background: var(--surface-warm);
}

.feedback-lifecycle-step strong,
.feedback-lifecycle-step span {
  overflow-wrap: anywhere;
}

.feedback-lifecycle-step strong {
  color: var(--ink);
  font-size: 13px;
}

.feedback-lifecycle-step span {
  font-size: 12px;
}

.feedback-form {
  display: grid;
  gap: 16px;
  margin-top: 18px;
}

.feedback-form label,
.feedback-files,
.feedback-capture-head > div {
  display: grid;
  gap: 6px;
  color: var(--muted);
  font-size: 13px;
}

.feedback-fields {
  display: grid;
  grid-template-columns: minmax(180px, 0.4fr) minmax(260px, 1fr);
  gap: 14px;
}

.feedback-capture-head {
  align-items: center;
  border-top: 1px solid var(--line);
  padding-top: 14px;
}

.feedback-capture-head strong,
.feedback-capture-head span {
  display: block;
}

.feedback-tools {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
  margin-bottom: 10px;
}

.feedback-tool,
.feedback-color {
  min-height: 44px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
  color: var(--ink);
  padding: 0 11px;
}

.feedback-tool.is-active {
  border-color: var(--blue);
  background: var(--surface-soft);
  color: var(--blue-deep);
}

.feedback-color {
  width: 44px;
  min-height: 44px;
  border-radius: 50%;
  background: var(--feedback-color);
  padding: 0;
}

.feedback-color[data-feedback-color="#e5484d"] { --feedback-color: #e5484d; }
.feedback-color[data-feedback-color="#145cff"] { --feedback-color: #145cff; }
.feedback-color[data-feedback-color="#167463"] { --feedback-color: #167463; }

.feedback-color.is-active {
  box-shadow: 0 0 0 3px #fff, 0 0 0 5px var(--blue);
}

.feedback-canvas-wrap canvas {
  display: block;
  width: 100%;
  height: auto;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #eef3f8;
  cursor: crosshair;
  touch-action: none;
}

.feedback-files {
  border-top: 1px solid var(--line);
  padding-top: 14px;
}

.feedback-file-list {
  display: grid;
  gap: 7px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.feedback-file-list li {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface-soft);
  padding: 9px 11px;
  font-size: 13px;
}

.feedback-submit-row {
  align-items: center;
}

.feedback-submit-row p {
  margin: 0;
  color: var(--green);
}

.shell {
  display: grid;
  grid-template-columns: 292px minmax(0, 1fr);
  min-height: calc(100vh - 72px);
}

.command-rail {
  position: sticky;
  top: 72px;
  height: calc(100vh - 72px);
  display: grid;
  grid-template-rows: auto minmax(0, 1fr);
  gap: 18px;
  overflow: auto;
  border-right: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.72);
  padding: 18px;
}

.primary-nav {
  display: grid;
  gap: 6px;
}

.nav-item {
  width: 100%;
  background: transparent;
  color: var(--muted);
  text-align: left;
  font-weight: 700;
}

.nav-item.is-active {
  border-color: var(--line);
  background: #fff;
  color: var(--blue-deep);
  box-shadow: 0 8px 24px rgba(16, 32, 51, 0.06);
}

.tree-panel {
  min-height: 0;
}

.rail-heading {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  align-items: center;
  margin-bottom: 10px;
}

.rail-heading h2 {
  margin: 0;
  font-size: 14px;
}

.rail-heading span {
  color: var(--muted);
  font-size: 12px;
}

.system-tree {
  display: grid;
  gap: 8px;
}

.tree-group {
  border-top: 1px solid var(--line);
  padding-top: 8px;
}

.tree-group summary {
  color: var(--muted);
  cursor: pointer;
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0;
  text-transform: uppercase;
}

.tree-node {
  width: 100%;
  height: auto;
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 8px;
  align-items: center;
  margin-top: 6px;
  background: transparent;
  color: var(--ink);
  padding: 9px 10px;
  text-align: left;
}

.tree-node span {
  min-width: 0;
  overflow-wrap: anywhere;
  font-weight: 700;
}

.tree-node small {
  color: var(--muted);
  font-size: 11px;
  font-variant-numeric: tabular-nums;
}

.workspace {
  min-width: 0;
  padding: 28px;
}

.view {
  display: none;
  max-width: 1360px;
  scroll-margin-top: 92px;
}

.view.is-active {
  display: block;
  animation: fade-in 160ms ease-out;
}

.section-head {
  max-width: 840px;
  margin-bottom: 22px;
}

.compact-head {
  max-width: 980px;
}

.eyebrow {
  margin: 0 0 7px;
  color: var(--blue-deep);
  font-size: 12px;
  font-weight: 850;
  letter-spacing: 0;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1,
h2 {
  text-wrap: balance;
}

h1 {
  max-width: 980px;
  margin-bottom: 10px;
  font-size: clamp(30px, 4vw, 48px);
  line-height: 1.05;
}

h2 {
  font-size: 20px;
  line-height: 1.18;
}

.section-head p,
.muted {
  color: var(--muted);
}

.metric-grid {
  display: grid;
  grid-template-columns: repeat(6, minmax(120px, 1fr));
  gap: 10px;
  margin-bottom: 16px;
}

.metric-card,
.surface,
.reader-panel,
.result-box {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  box-shadow: var(--shadow);
}

.metric-card {
  min-height: 116px;
  padding: 14px;
}

.metric-card strong {
  display: block;
  margin-bottom: 3px;
  font-size: 28px;
  line-height: 1;
  font-variant-numeric: tabular-nums;
}

.metric-card span {
  color: var(--muted);
  font-size: 13px;
}

.flow-strip {
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  gap: 8px;
  margin: 16px 0 18px;
}

.flow-strip span {
  display: grid;
  min-height: 48px;
  place-items: center;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.74);
  color: var(--blue-deep);
  font-weight: 800;
  text-align: center;
}

.portal-flow-strip {
  grid-template-columns: repeat(5, minmax(0, 1fr));
}

.task-flow-panel {
  margin: 16px 0 18px;
}

.task-flow-panel .section-head {
  margin-bottom: 14px;
}

.task-flow-steps {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 10px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.first-use-journey-steps {
  grid-template-columns: repeat(5, minmax(0, 1fr));
}

.task-flow-step {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 10px;
  min-width: 0;
  min-height: 178px;
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.74);
}

.task-flow-step.is-open {
  border-color: rgba(32, 79, 176, 0.38);
  background: #f7f9ff;
}

.task-flow-step.is-blocked {
  background: var(--surface-warm);
  color: var(--muted);
}

.task-flow-number {
  display: grid;
  width: 28px;
  height: 28px;
  place-items: center;
  border-radius: 50%;
  background: var(--blue-deep);
  color: #fff;
  font-size: 13px;
  font-weight: 800;
}

.task-flow-step.is-open .task-flow-number {
  background: var(--blue);
}

.task-flow-step.is-blocked .task-flow-number {
  background: var(--muted);
}

.task-flow-copy {
  display: flex;
  min-width: 0;
  flex-direction: column;
  align-items: flex-start;
  gap: 6px;
}

.task-flow-copy .eyebrow,
.task-flow-copy strong,
.task-flow-copy p {
  margin: 0;
}

.task-flow-copy > p:not(.eyebrow) {
  color: var(--muted);
  font-size: 13px;
}

.task-flow-copy .primary-action,
.task-flow-copy .secondary-action {
  margin-top: auto;
}

.after-result-panel {
  margin-top: 18px;
}

.after-result-panel .section-head {
  margin-bottom: 14px;
}

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

.after-result-card {
  display: flex;
  min-width: 0;
  flex-direction: column;
  gap: 8px;
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.74);
}

.after-result-card h3,
.after-result-card p {
  margin: 0;
}

.after-result-card .button-row,
.after-result-card > .primary-action,
.after-result-card > .secondary-action {
  margin-top: auto;
}

.portal-home-grid {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 12px;
  margin: 16px 0 18px;
}

.portal-home-card {
  display: flex;
  min-width: 0;
  flex-direction: column;
  gap: 10px;
}

.portal-home-card h2,
.portal-home-card p {
  margin: 0;
}

.portal-home-card .primary-action,
.portal-home-card .secondary-action {
  margin-top: auto;
}

.portal-hub-secondary {
  margin-top: 14px;
}

.action-grid,
.agent-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.agent-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin-bottom: 16px;
}

.surface,
.reader-panel,
.result-box {
  padding: 18px;
}

.action-surface {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 16px;
  align-items: start;
}

.quiet-surface {
  background: var(--surface-warm);
}

.reader-layout {
  display: grid;
  grid-template-columns: minmax(0, 0.92fr) minmax(360px, 0.7fr);
  gap: 18px;
  align-items: start;
}

.reader-panel {
  position: sticky;
  top: 96px;
  max-height: calc(100vh - 124px);
  overflow: auto;
}

.feature-list,
.folder-chips {
  display: grid;
  gap: 10px;
  margin-bottom: 18px;
}

.feature-item {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 14px;
  align-items: center;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
  padding: 14px;
}

.feature-item strong,
.feature-item span {
  display: block;
}

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

.folder-chip {
  height: auto;
  display: grid;
  gap: 3px;
  justify-items: start;
  background: #fff;
  padding: 12px;
  text-align: left;
}

.folder-chip strong,
.folder-chip span {
  min-width: 0;
  overflow-wrap: anywhere;
}

.folder-chip span {
  color: var(--muted);
  font-size: 12px;
}

.folder-chip.is-active {
  border-color: rgba(20, 92, 255, 0.30);
  background: var(--surface-soft);
  color: var(--blue-deep);
}

.skills-quick-start,
.skills-discovery,
.skill-expert-tools {
  margin-bottom: 18px;
}

.skills-quick-start {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  gap: 28px;
  align-items: start;
  border-color: #bfd1ea;
  background: #f7faff;
}

.skills-quick-start h2 {
  margin: 8px 0 10px;
}

.skills-start-flow {
  display: grid;
  gap: 0;
  margin: 0;
  padding: 0;
  list-style: none;
}

.skills-start-flow li {
  display: grid;
  gap: 4px;
  border-top: 1px solid var(--line);
  padding: 12px 0;
}

.skills-start-flow span,
.skill-search-label {
  color: var(--muted);
}

.skill-search-label {
  display: block;
  margin-bottom: 6px;
  font-size: 12px;
  font-weight: 750;
}

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

.skill-example-prompts {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
  margin-top: 18px;
}

.skill-example-prompts article {
  display: flex;
  min-width: 0;
  flex-direction: column;
  align-items: flex-start;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
  padding: 14px;
}

.skill-example-prompts article > span {
  color: var(--blue-deep);
  font-size: 12px;
  font-weight: 800;
}

.skill-example-prompts p {
  flex: 1;
  overflow-wrap: anywhere;
}

.skill-status-summary {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  margin-top: 16px;
  border-top: 1px solid var(--line);
  padding-top: 14px;
}

.skill-status-summary p {
  margin: 0;
}

.skill-expert-tools summary,
.skill-technical-details summary {
  color: var(--blue-deep);
  cursor: pointer;
  font-weight: 800;
}

.skill-expert-tools .folder-chips {
  margin-top: 16px;
}

.skill-technical-details {
  margin-top: 18px;
  border-top: 1px solid var(--line);
  padding-top: 14px;
}

.toolbar {
  margin-bottom: 14px;
}

.toolbar select {
  max-width: 280px;
}

.list {
  display: grid;
  gap: 10px;
  margin-top: 14px;
}

.compact {
  gap: 8px;
}

.item {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 14px;
  align-items: start;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.88);
  padding: 14px;
}

.compact .item {
  padding: 11px 12px;
}

.item-main {
  min-width: 0;
}

.item-main strong,
.item-main span,
.item-main p {
  display: block;
}

.item-main p {
  margin: 5px 0 0;
  color: var(--muted);
}

.empty-state {
  border: 1px dashed var(--line-strong);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.60);
  padding: 18px;
}

.badge {
  background: var(--surface-soft);
  color: var(--blue-deep);
}

.badge.warn {
  background: #fff4df;
  color: var(--amber);
}

.badge.danger {
  background: #fff0ee;
  color: var(--danger);
}

.form-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  align-items: end;
  margin-bottom: 16px;
}

.form-grid label {
  display: grid;
  gap: 6px;
  color: var(--muted);
  font-size: 13px;
}

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

.span-3 {
  grid-column: 1 / -1;
}

.path {
  color: var(--muted);
  font-family: var(--mono);
  font-size: 12px;
  overflow-wrap: anywhere;
}

pre,
code {
  font-family: var(--mono);
}

pre {
  max-height: 440px;
  overflow: auto;
  white-space: pre-wrap;
  overflow-wrap: anywhere;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #f7fafc;
  padding: 12px;
}

.agent-card pre {
  max-height: 260px;
}

.meta-list {
  display: grid;
  gap: 10px;
  margin: 16px 0;
}

.meta-list div {
  display: grid;
  gap: 3px;
  border-top: 1px solid var(--line);
  padding-top: 9px;
}

.meta-list dt {
  color: var(--muted);
  font-size: 12px;
  font-weight: 800;
  text-transform: uppercase;
}

.meta-list dd {
  margin: 0;
}

.html-reader {
  width: 100%;
  height: min(68vh, 760px);
  min-height: 440px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
}

.markdown-reader {
  border-top: 1px solid var(--line);
  margin-top: 12px;
  padding-top: 12px;
}

.markdown-reader h1,
.markdown-reader h2,
.markdown-reader h3 {
  font-size: 18px;
}

.preview-image {
  display: block;
  max-width: 100%;
  height: auto;
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
}

td,
th {
  border-bottom: 1px solid var(--line);
  padding: 8px;
  text-align: left;
}

.safety-strip {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
  margin-bottom: 16px;
}

.safety-strip article {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
  padding: 14px;
}

.safety-strip strong,
.safety-strip span {
  display: block;
}

.safety-strip span {
  color: #465b73;
}

.learning-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(280px, 0.65fr);
  gap: 18px;
  align-items: start;
}

.portal-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(290px, 0.65fr);
  gap: 18px;
  align-items: start;
}

.portal-main,
.portal-side {
  display: grid;
  gap: 16px;
}

.portal-heading,
.portal-path-title {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 12px;
  align-items: start;
}

.portal-heading h2,
.portal-path-title h3 {
  margin: 0;
}

.portal-path-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.portal-path {
  border-top: 1px solid var(--line);
}

.portal-path-button {
  width: 100%;
  display: grid;
  grid-template-columns: 36px minmax(0, 1fr);
  gap: 14px;
  align-items: start;
  border: 0;
  border-radius: var(--radius);
  background: transparent;
  color: var(--ink);
  padding: 14px 10px;
  text-align: left;
}

.portal-path-button:hover,
.portal-path.is-active .portal-path-button {
  background: var(--surface-soft);
}

.portal-step {
  display: grid;
  width: 32px;
  height: 32px;
  place-items: center;
  border: 1px solid var(--line);
  border-radius: 50%;
  background: var(--surface-soft);
  color: var(--blue-deep);
  font-weight: 800;
}

.portal-path-copy,
.portal-proof dd {
  min-width: 0;
  overflow-wrap: anywhere;
}

.portal-path-copy > span {
  display: block;
  margin-top: 6px;
  color: var(--muted);
  font-size: 13px;
}

.portal-proof {
  display: grid;
  gap: 8px;
  margin: 0;
}

.portal-path-detail {
  border-top: 1px solid var(--line);
  background: var(--surface-soft);
  padding: 18px;
}

.portal-detail-heading {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 12px;
  align-items: start;
  margin-bottom: 12px;
}

.portal-detail-heading h3 {
  margin: 0;
}

.portal-detail-purpose {
  margin: 0 0 12px;
  color: var(--muted);
}

.portal-proof div {
  display: grid;
  grid-template-columns: minmax(130px, 0.3fr) minmax(0, 1fr);
  gap: 12px;
}

.portal-proof dt {
  color: var(--muted);
  font-size: 12px;
  font-weight: 800;
  text-transform: uppercase;
}

.portal-proof dd {
  margin: 0;
  font-size: 13px;
}

.portal-access-state {
  border-bottom: 1px solid var(--line);
  padding-bottom: 14px;
}

.portal-access-state p {
  margin: 10px 0 0;
  color: var(--muted);
}

.plain-check-list {
  list-style: none;
  margin: 14px 0 0;
  padding: 0;
}

.plain-check-list li {
  position: relative;
  border-top: 1px solid var(--line);
  padding: 11px 0 11px 22px;
}

.plain-check-list li::before {
  position: absolute;
  left: 2px;
  top: 14px;
  width: 7px;
  height: 12px;
  border: solid var(--green);
  border-width: 0 2px 2px 0;
  content: "";
  transform: rotate(45deg);
}

.plain-check-list li.is-danger::before {
  top: 17px;
  width: 8px;
  height: 8px;
  border: 0;
  border-radius: 50%;
  background: var(--danger);
  transform: none;
}

.learning-main,
.learning-side {
  display: grid;
  gap: 16px;
}

.learning-heading,
.lesson-heading {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 14px;
  align-items: start;
}

.learning-heading h2,
.lesson-heading h2,
.runtime-guide h3 {
  margin: 0;
}

.runtime-choice {
  display: grid;
  grid-template-columns: repeat(2, minmax(110px, 1fr));
  gap: 8px;
}

.runtime-button {
  min-height: 56px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  color: var(--ink);
  padding: 8px 14px;
  text-align: left;
  transition:
    border-color 140ms ease,
    background-color 140ms ease,
    color 140ms ease,
    transform 140ms ease;
}

.runtime-button strong,
.runtime-button span {
  display: block;
}

.runtime-button span {
  margin-top: 2px;
  color: var(--muted);
  font-family: var(--mono);
  font-size: 12px;
}

.runtime-button:hover {
  border-color: var(--line-strong);
  background: var(--surface-soft);
}

.runtime-button.is-active {
  border-color: var(--blue);
  background: var(--surface-soft);
  color: var(--blue-deep);
}

.runtime-guide,
.course-surface {
  border-top: 1px solid var(--line);
  padding-top: 18px;
}

.learning-sequence {
  margin: 18px 0;
}

.learning-sequence-steps {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.learning-sequence-step {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 8px;
  min-width: 0;
  min-height: 132px;
  padding: 10px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.74);
}

.learning-sequence-step.is-current {
  border-color: rgba(32, 79, 176, 0.38);
  background: #f7f9ff;
}

.learning-sequence-number {
  display: grid;
  width: 26px;
  height: 26px;
  place-items: center;
  border-radius: 50%;
  background: var(--blue-deep);
  color: #fff;
  font-size: 12px;
  font-weight: 800;
}

.learning-sequence-step.is-current .learning-sequence-number {
  background: var(--blue);
}

.learning-sequence-step p,
.learning-sequence-step strong {
  margin: 0;
}

.learning-sequence-step strong {
  display: block;
  color: var(--ink);
  font-size: 13px;
}

.learning-sequence-step .secondary-action {
  margin-top: 8px;
}

.course-navigation {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px;
  margin: 18px 0;
}

.course-lesson-button {
  display: grid;
  grid-template-columns: 28px minmax(0, 1fr) auto;
  gap: 9px;
  align-items: center;
  min-height: 58px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  color: var(--ink);
  padding: 9px 12px;
  text-align: left;
}

.course-lesson-button:hover {
  border-color: var(--line-strong);
  background: var(--surface-soft);
}

.course-lesson-button.is-active {
  border-color: var(--blue);
  background: var(--surface-soft);
  color: var(--blue-deep);
}

.course-lesson-button > span {
  display: grid;
  width: 26px;
  height: 26px;
  place-items: center;
  border-radius: 50%;
  background: var(--blue);
  color: #fff;
  font-size: 12px;
  font-weight: 800;
}

.course-lesson-button small {
  color: var(--muted);
  white-space: nowrap;
}

.course-lesson {
  border-top: 1px solid var(--line);
  padding-top: 18px;
}

.learning-presentation-surface {
  margin-bottom: 18px;
}

.package-access-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  margin: 16px 0;
}

.download-verification {
  display: grid;
  gap: 10px;
  margin: 18px 0;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface-soft);
  padding: 14px;
}

.download-verification h4 {
  margin: 0;
}

.download-verification-commands {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}

.download-verification-command {
  display: grid;
  min-width: 0;
  gap: 6px;
}

.download-verification-command code {
  display: block;
  overflow-wrap: anywhere;
}

.download-package-card {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 16px;
  min-width: 0;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  padding: 16px;
}

.download-package-facts {
  display: grid;
  gap: 0;
  margin: 14px 0;
}

.download-package-facts div {
  display: grid;
  grid-template-columns: 92px minmax(0, 1fr);
  gap: 12px;
  border-top: 1px solid var(--line);
  padding: 9px 0;
}

.download-package-facts dt {
  color: var(--muted);
  font-size: 12px;
  font-weight: 800;
  text-transform: uppercase;
}

.download-package-facts dd {
  min-width: 0;
  margin: 0;
  overflow-wrap: anywhere;
}

.help-index-surface {
  display: grid;
  gap: 10px;
}

.help-search-label {
  color: var(--muted);
  font-size: 12px;
  font-weight: 750;
}

.help-topic-index {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  margin-top: 6px;
}

.help-topic-card {
  display: flex;
  min-width: 0;
  flex-direction: column;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  padding: 16px;
}

.help-topic-card h3,
.help-topic-card p {
  overflow-wrap: anywhere;
}

.help-topic-card .button-row {
  margin-top: auto;
  padding-top: 8px;
}

.help-no-results {
  grid-column: 1 / -1;
}

.learning-presentation-navigation {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 8px;
  margin: 16px 0;
}

.learning-presentation-button {
  display: grid;
  grid-template-columns: 28px minmax(0, 1fr);
  gap: 9px;
  align-items: center;
  min-height: 54px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  color: var(--ink);
  padding: 10px 12px;
  text-align: left;
}

.learning-presentation-button.is-active {
  border-color: var(--blue);
  background: var(--surface-soft);
  color: var(--blue-deep);
}

.learning-presentation-button > span {
  display: grid;
  width: 26px;
  height: 26px;
  place-items: center;
  border-radius: 50%;
  background: var(--blue);
  color: #fff;
  font-size: 12px;
  font-weight: 800;
}

.learning-presentation-frame {
  width: 100%;
  min-height: 620px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
}

.lesson-video-placeholder {
  margin: 16px 0;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface-soft);
  padding: 16px;
}

.lesson-video-placeholder ol {
  display: grid;
  gap: 8px;
  padding-left: 22px;
}

.learning-steps {
  display: grid;
  gap: 10px;
  margin: 16px 0;
  padding-left: 24px;
}

.learning-steps li {
  padding-left: 6px;
}

.lesson-contract {
  display: grid;
  gap: 0;
  margin: 16px 0;
}

.lesson-contract div {
  display: grid;
  grid-template-columns: minmax(110px, 0.28fr) minmax(0, 1fr);
  gap: 16px;
  border-top: 1px solid var(--line);
  padding: 12px 0;
}

.lesson-contract dt {
  color: var(--muted);
  font-size: 12px;
  font-weight: 800;
  text-transform: uppercase;
}

.lesson-contract dd {
  margin: 0;
}

.lesson-contract .lesson-stop {
  border: 1px solid rgba(180, 35, 24, 0.28);
  border-radius: var(--radius);
  background: rgba(180, 35, 24, 0.05);
  padding: 12px;
}

.lesson-contract .lesson-stop dt,
.lesson-contract .lesson-stop dd {
  color: var(--danger);
}

.simple-language-surface {
  margin-bottom: 18px;
}

.simple-language-summary {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0 24px;
  margin: 0;
}

.simple-language-summary div {
  border-top: 1px solid var(--line);
  padding: 12px 0;
}

.simple-language-summary dt {
  color: var(--blue-deep);
  font-size: 13px;
  font-weight: 800;
}

.simple-language-summary dd {
  margin: 4px 0 0;
}

.course-retell-panel {
  margin-top: 20px;
  border-top: 1px solid var(--line);
  padding-top: 18px;
}

.course-retell {
  display: grid;
  gap: 8px;
  padding-left: 24px;
}

.delivery-count strong {
  display: block;
  color: var(--blue-deep);
  font-size: clamp(30px, 5vw, 48px);
  line-height: 1;
}

.feature-status-list {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
  margin: 14px 0;
}

.skill-scope {
  border-top: 1px solid var(--line);
  padding-top: 12px;
}

.skill-scope summary {
  min-height: 44px;
  color: var(--blue-deep);
  cursor: pointer;
  font-weight: 750;
  padding: 10px 0;
}

.skill-scope ul,
.boundary-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.skill-scope li,
.boundary-list li {
  border-top: 1px solid var(--line);
  padding: 11px 0;
}

.skill-scope li strong,
.skill-scope li span {
  display: block;
}

.skill-scope li span,
.boundary-list p {
  color: var(--muted);
  font-size: 13px;
}

.boundary-list li > div {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 8px;
  align-items: center;
}

.boundary-list p {
  margin: 6px 0 0;
}

.hidden-simple [data-expert-only] {
  display: none;
}

.public-landing {
  min-height: 100vh;
  background: #f7faff;
}

.public-landing[hidden] {
  display: none;
}

.public-header,
.public-hero,
.public-section,
.public-footer {
  width: min(1180px, calc(100% - 48px));
  margin-inline: auto;
}

.public-header {
  display: flex;
  min-height: 84px;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  border-bottom: 1px solid var(--line);
}

.public-brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  color: var(--ink);
  font-weight: 800;
  text-decoration: none;
}

.public-hero {
  display: grid;
  grid-template-columns: minmax(0, 1.16fr) minmax(320px, 0.84fr);
  gap: 54px;
  align-items: center;
  min-height: 680px;
  padding-block: 76px;
}

.public-hero h1 {
  max-width: 820px;
  margin: 10px 0 22px;
  color: #0b1f3a;
  font-size: clamp(42px, 6vw, 76px);
  line-height: 1.02;
  letter-spacing: -0.045em;
}

.public-lead {
  max-width: 720px;
  color: #425873;
  font-size: clamp(20px, 2.1vw, 27px);
  line-height: 1.45;
}

.public-boundary {
  color: var(--muted);
  font-size: 14px;
}

.public-workflow {
  border: 1px solid #c9d9ed;
  border-radius: 18px;
  background: #fff;
  padding: 28px;
  box-shadow: 0 26px 70px rgba(20, 63, 154, 0.12);
}

.public-workflow ol,
.public-start-list {
  list-style: none;
  margin: 18px 0 0;
  padding: 0;
}

.public-workflow li {
  display: grid;
  grid-template-columns: 38px minmax(0, 1fr);
  gap: 4px 12px;
  border-top: 1px solid var(--line);
  padding: 17px 0;
}

.public-workflow li > span {
  grid-row: 1 / 3;
  display: grid;
  width: 34px;
  height: 34px;
  place-items: center;
  border-radius: 50%;
  background: #e8f0ff;
  color: var(--blue-deep);
  font-weight: 800;
}

.public-workflow small,
.public-start-list span {
  color: var(--muted);
}

.public-section {
  padding-block: 86px;
}

.public-section > h2,
.public-package-section h2 {
  max-width: 800px;
  margin: 10px 0 34px;
  font-size: clamp(32px, 4vw, 50px);
  line-height: 1.1;
  letter-spacing: -0.025em;
}

.public-section-soft {
  width: 100%;
  max-width: none;
  padding-inline: max(24px, calc((100% - 1180px) / 2));
  background: #eaf2ff;
}

.public-benefit-grid,
.public-area-grid,
.public-package-grid {
  display: grid;
  gap: 16px;
}

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

.public-area-grid {
  grid-template-columns: repeat(5, minmax(0, 1fr));
}

.public-benefit-grid article,
.public-area-grid article,
.public-package-grid article {
  min-width: 0;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: #fff;
  padding: 22px;
}

.public-benefit-grid h3,
.public-area-grid h3,
.public-package-grid h3 {
  margin: 8px 0;
}

.public-area-grid article > span {
  color: var(--blue);
  font-size: 13px;
  font-weight: 800;
}

.public-start-list {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.public-start-list li {
  display: grid;
  gap: 7px;
  border-top: 2px solid var(--blue);
  padding: 18px 8px 8px 0;
}

.public-package-section {
  display: grid;
  grid-template-columns: minmax(0, 0.8fr) minmax(0, 1.2fr);
  gap: 48px;
  align-items: center;
}

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

.public-package-grid article {
  display: flex;
  gap: 14px;
  align-items: flex-start;
}

.public-package-mark {
  display: grid;
  width: 44px;
  height: 44px;
  flex: 0 0 44px;
  place-items: center;
  border-radius: 10px;
  background: var(--blue-deep);
  color: #fff;
  font-size: 13px;
  font-weight: 800;
}

.public-status {
  border-top: 1px solid var(--line);
  text-align: center;
}

.public-status h2,
.public-status p,
.public-status .button-row {
  margin-inline: auto;
  justify-content: center;
}

.public-status p {
  max-width: 760px;
}

.public-footer {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  border-top: 1px solid var(--line);
  padding-block: 26px 40px;
  color: var(--muted);
  font-size: 13px;
}

.pricing-preview[hidden],
.pricing-panel[hidden] {
  display: none;
}

.pricing-hero {
  display: grid;
  width: min(1180px, calc(100% - 48px));
  grid-template-columns: minmax(0, 1.15fr) minmax(320px, 0.85fr);
  gap: 54px;
  align-items: center;
  min-height: 600px;
  margin-inline: auto;
  padding-block: 72px;
}

.pricing-hero h1 {
  max-width: 800px;
  margin: 10px 0 22px;
  color: #0b1f3a;
  font-size: clamp(42px, 5.5vw, 70px);
  line-height: 1.02;
  letter-spacing: -0.04em;
}

.pricing-status {
  display: inline-flex;
  border: 1px solid #b9cdf0;
  border-radius: 999px;
  background: #edf4ff;
  color: var(--blue-deep);
  padding: 10px 14px;
}

.pricing-boundary-card,
.pricing-panel {
  border: 1px solid #c9d9ed;
  border-radius: 18px;
  background: #fff;
  padding: 28px;
  box-shadow: 0 24px 64px rgba(20, 63, 154, 0.10);
}

.pricing-boundary-card h2,
.pricing-panel h3 {
  margin: 8px 0 16px;
}

.pricing-boundary-card ul {
  margin: 0;
  padding-left: 20px;
}

.pricing-scope-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.pricing-scope-grid article {
  min-width: 0;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: #fff;
  padding: 22px;
}

.pricing-scope-grid article > span {
  color: var(--blue);
  font-size: 13px;
  font-weight: 800;
}

.pricing-scope-grid h3 {
  margin: 8px 0;
}

.pricing-simulator-head {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  align-items: end;
  margin-bottom: 28px;
}

.pricing-simulator-head h2 {
  max-width: 760px;
  margin: 10px 0 0;
  font-size: clamp(32px, 4vw, 50px);
  line-height: 1.1;
}

.pricing-step-status {
  color: var(--blue-deep);
  font-weight: 800;
  white-space: nowrap;
}

.pricing-stepper {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 8px;
  margin-bottom: 18px;
}

.pricing-step {
  display: grid;
  grid-template-columns: 30px minmax(0, 1fr);
  gap: 8px;
  align-items: center;
  min-height: 52px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
  color: var(--ink);
  padding: 8px 10px;
  text-align: left;
}

.pricing-step span {
  display: grid;
  width: 28px;
  height: 28px;
  place-items: center;
  border-radius: 50%;
  background: var(--surface-soft);
  color: var(--blue-deep);
  font-weight: 800;
}

.pricing-step:hover,
.pricing-step.is-active {
  border-color: var(--blue);
  background: #f3f7ff;
}

.pricing-step.is-active span {
  background: var(--blue);
  color: #fff;
}

.pricing-panel {
  box-shadow: none;
}

.pricing-gates {
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: #f7faff;
  padding: 14px 0;
  color: var(--muted);
  font-size: 14px;
}

.pricing-demo-data {
  display: grid;
  gap: 0;
  margin: 18px 0;
}

.pricing-demo-data div {
  display: grid;
  grid-template-columns: minmax(120px, 0.3fr) minmax(0, 1fr);
  gap: 16px;
  border-top: 1px solid var(--line);
  padding: 10px 0;
}

.pricing-demo-data dt {
  color: var(--muted);
  font-size: 12px;
  font-weight: 800;
  text-transform: uppercase;
}

.pricing-demo-data dd {
  margin: 0;
  overflow-wrap: anywhere;
}

.toast {
  position: fixed;
  right: 18px;
  bottom: 18px;
  z-index: 50;
  max-width: 380px;
  border-radius: var(--radius);
  background: var(--ink);
  color: #fff;
  padding: 12px 14px;
  box-shadow: var(--shadow);
}

@keyframes fade-in {
  from {
    opacity: 0;
    transform: translateY(4px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  .view.is-active {
    animation: none !important;
    transition-duration: 0.01ms !important;
  }
}

@media (max-width: 1180px) {
  .metric-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

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

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

@media (max-width: 980px) {
  .public-hero,
  .public-package-section,
  .pricing-hero {
    grid-template-columns: 1fr;
  }

  .public-hero {
    min-height: 0;
  }

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

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

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

  .skills-quick-start {
    grid-template-columns: 1fr;
  }

  .skill-category-chips,
  .skill-example-prompts {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .reader-layout,
  .action-grid,
  .agent-grid,
  .learning-layout,
  .portal-layout,
  .after-result-grid {
    grid-template-columns: 1fr;
  }

  .reader-panel {
    position: static;
    max-height: none;
  }

  .learning-presentation-navigation {
    grid-template-columns: 1fr;
  }

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

  .package-access-list,
  .download-verification-commands {
    grid-template-columns: 1fr;
  }

  .help-topic-index {
    grid-template-columns: 1fr;
  }

  .learning-presentation-frame {
    min-height: 480px;
  }
}

@media (max-width: 900px) {
  .topbar {
    grid-template-columns: 1fr;
    gap: 12px;
  }

  .topbar-actions {
    justify-content: start;
  }

  .shell {
    grid-template-columns: 1fr;
  }

  .command-rail {
    position: static;
    height: auto;
    max-height: none;
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .hidden-simple .command-rail {
    gap: 0;
  }

  .hidden-simple .tree-panel {
    display: none;
  }

  .primary-nav {
    display: flex;
    overflow-x: auto;
    padding-bottom: 4px;
  }

  .nav-item {
    width: auto;
    flex: 0 0 auto;
  }

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

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

  .workspace {
    padding: 20px;
  }

  .flow-strip,
  .portal-home-grid,
  .task-flow-steps,
  .learning-sequence-steps,
  .folder-chips,
  .safety-strip,
  .form-grid,
  .runtime-choice,
  .course-navigation {
    grid-template-columns: 1fr;
  }

  .lesson-contract div {
    grid-template-columns: 1fr;
    gap: 5px;
  }

  .simple-language-summary {
    grid-template-columns: 1fr;
  }

  .portal-proof div {
    grid-template-columns: 1fr;
    gap: 4px;
  }

  .span-2,
  .span-3 {
    grid-column: auto;
  }

  .action-surface,
  .feature-item,
  .item {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 560px) {
  .public-header,
  .public-hero,
  .pricing-hero,
  .public-section,
  .public-footer {
    width: min(100% - 28px, 1180px);
  }

  .public-header {
    align-items: flex-start;
    flex-direction: column;
    padding-block: 18px;
  }

  .public-hero,
  .public-section {
    padding-block: 54px;
  }

  .public-hero h1 {
    font-size: 42px;
  }

  .public-benefit-grid,
  .public-area-grid,
  .public-start-list,
  .public-package-grid,
  .pricing-scope-grid,
  .pricing-stepper {
    grid-template-columns: 1fr;
  }

  .feedback-lifecycle {
    grid-template-columns: 1fr;
  }

  .pricing-simulator-head {
    align-items: start;
    flex-direction: column;
  }

  .pricing-demo-data div {
    grid-template-columns: 1fr;
    gap: 4px;
  }

  .skill-category-chips,
  .skill-example-prompts,
  .skill-status-summary {
    grid-template-columns: 1fr;
  }

  .public-section-soft {
    width: 100%;
    padding-inline: 14px;
  }

  .public-footer {
    flex-direction: column;
  }

  .workspace,
  .command-rail {
    padding: 14px;
  }

  .primary-nav {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 6px;
    overflow: visible;
    padding-bottom: 0;
  }

  .nav-item {
    min-width: 0;
    padding-inline: 8px;
    text-align: center;
  }

  .topbar {
    padding: 12px;
  }

  .brand-mark {
    width: 36px;
    height: 36px;
  }

  h1 {
    font-size: 30px;
  }

  .metric-grid,
  .system-tree {
    grid-template-columns: 1fr;
  }

  .portal-path-button {
    grid-template-columns: 1fr;
  }

  .mode-switch,
  .mode-button {
    width: 100%;
  }

  .mode-button {
    flex: 1 1 0;
  }

  .feedback-dialog {
    padding:
      max(8px, env(safe-area-inset-top))
      max(8px, env(safe-area-inset-right))
      max(8px, env(safe-area-inset-bottom))
      max(8px, env(safe-area-inset-left));
  }

  .feedback-card {
    max-height: calc(100dvh - max(8px, env(safe-area-inset-top)) - max(8px, env(safe-area-inset-bottom)));
    padding: 16px;
  }

  .feedback-heading,
  .feedback-capture-head,
  .feedback-submit-row,
  .feedback-fields {
    display: grid;
    grid-template-columns: 1fr;
  }

  .feedback-float {
    inset: auto max(14px, env(safe-area-inset-right)) max(14px, env(safe-area-inset-bottom)) auto;
  }

  .learning-presentation-frame {
    min-height: 360px;
  }
}