:root {
  color-scheme: light;
  --ink: #1d2433;
  --muted: #667085;
  --line: #d8dee8;
  --soft: #f4f7fb;
  --panel: #ffffff;
  --accent: #2266aa;
  --accent-2: #16866f;
  --warn: #b7791f;
  --danger: #c2413a;
  --ignored: #9099a8;
  --shadow: 0 14px 40px rgba(29, 36, 51, 0.08);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-width: 320px;
  background: #edf2f7;
  color: var(--ink);
  letter-spacing: 0;
}

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

button {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  color: var(--ink);
  min-height: 38px;
  padding: 8px 12px;
  cursor: pointer;
}

button:hover {
  border-color: #a8b4c7;
}

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

button.knowledge-toggle {
  min-width: 88px;
  color: #fff;
  font-weight: 700;
}

button.knowledge-toggle.is-known {
  background: #16866f;
  border-color: #16866f;
}

button.knowledge-toggle.is-unknown {
  background: #c2413a;
  border-color: #c2413a;
}

button.important-word-token {
  min-height: 0;
  padding: 2px 6px;
  border: 0;
  border-radius: 5px;
  font-weight: 800;
  vertical-align: baseline;
}

button.cloud-token {
  min-height: 0;
  padding: 4px 8px;
  border-radius: 7px;
  line-height: 1.25;
}

button.cloud-token.repeated {
  font-weight: 800;
}

button.cloud-token.active {
  outline: 2px solid var(--accent);
  outline-offset: 1px;
}

.learn-token {
  display: inline-flex;
  align-items: center;
  min-height: 30px;
  border: 1px solid var(--line);
  border-radius: 7px;
  padding: 4px 8px;
  line-height: 1.25;
}

button.tts-btn {
  min-height: 30px;
  padding: 4px 9px;
  border-radius: 7px;
  line-height: 1;
}

button.tts-btn-mini {
  min-height: 26px;
  padding: 3px 8px;
  font-size: 12px;
}

button.ghost {
  background: transparent;
}

button.icon {
  width: 38px;
  padding: 0;
  display: inline-grid;
  place-items: center;
}

input,
select,
textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  color: var(--ink);
  padding: 10px 12px;
}

textarea {
  min-height: 270px;
  resize: vertical;
  line-height: 1.5;
}

.shell {
  min-height: 100vh;
  display: grid;
  grid-template-columns: 248px 1fr;
}

.sidebar {
  background: #172033;
  color: #f8fafc;
  padding: 22px 16px;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.brand {
  display: block;
  font-size: 22px;
  font-weight: 800;
  color: inherit;
  text-decoration: none;
  cursor: pointer;
}

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

.nav a,
.nav .nav-disabled {
  color: #cbd5e1;
  text-decoration: none;
  padding: 10px 12px;
  border-radius: 8px;
}

.nav .nav-disabled {
  display: block;
  color: #6f7d91;
  cursor: not-allowed;
}

.nav a.active,
.nav a:hover {
  background: rgba(255, 255, 255, 0.1);
  color: #fff;
}

.ui-mode-switch {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 4px;
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 8px;
  padding: 4px;
  background: rgba(255, 255, 255, 0.08);
}

.ui-mode-switch button {
  min-height: 34px;
  border: 0;
  background: transparent;
  color: inherit;
  font-size: 12px;
  font-weight: 750;
}

.ui-mode-switch button.active {
  background: #fff;
  color: #172033;
}

.mobile-topbar,
.mobile-bottom-nav {
  display: none;
}

.userline {
  margin-top: auto;
  color: #cbd5e1;
  font-size: 13px;
  overflow-wrap: anywhere;
}

.main {
  padding: 28px;
}

.document-main {
  height: 100vh;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.topbar {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 22px;
}

.topbar h1 {
  margin: 0 0 6px;
  font-size: 28px;
  line-height: 1.15;
}

.view-switch {
  display: inline-grid;
  grid-template-columns: repeat(2, minmax(96px, 1fr));
  gap: 4px;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 4px;
  background: #fff;
}

.view-switch a {
  min-height: 38px;
  display: grid;
  place-items: center;
  border-radius: 6px;
  color: var(--muted);
  font-weight: 750;
  text-decoration: none;
  padding: 8px 12px;
}

.view-switch a.active {
  background: var(--accent);
  color: #fff;
}

.subtle {
  margin: 0;
  color: var(--muted);
}

.grid {
  display: grid;
  gap: 16px;
}

.stats {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.two {
  grid-template-columns: minmax(0, 1.4fr) minmax(300px, 0.8fr);
}

.card {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: var(--shadow);
  padding: 18px;
}

.metric {
  display: grid;
  gap: 6px;
}

.metric strong {
  font-size: 28px;
}

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

.toolbar {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

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

.section-title h2 {
  margin: 0;
}

.form {
  display: grid;
  gap: 14px;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 180px 180px;
  gap: 12px;
}

.checkbox-control {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--muted);
  font-size: 14px;
}

.checkbox-control input {
  width: auto;
  margin: 0;
}

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

.range-control {
  display: grid;
  grid-template-columns: 1fr 54px;
  align-items: center;
  gap: 10px;
}

.range-control input {
  padding: 0;
}

.range-value {
  display: inline-block;
  text-align: right;
  color: var(--muted);
  font-variant-numeric: tabular-nums;
}

.table {
  width: 100%;
  border-collapse: collapse;
}

.table th,
.table td {
  border-bottom: 1px solid var(--line);
  padding: 11px 8px;
  text-align: left;
  vertical-align: top;
}

.table th {
  color: var(--muted);
  font-weight: 600;
  font-size: 13px;
}

.mobile-card-list {
  display: none;
}

.mobile-list-card {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  padding: 14px;
}

.mobile-list-card h3 {
  margin: 0 0 6px;
  font-size: 18px;
  line-height: 1.25;
}

.mobile-list-card h3 a {
  color: inherit;
  text-decoration: none;
}

.mobile-list-card p {
  margin: 0;
}

.mobile-card-actions {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
  margin-top: 12px;
}

.settings-account-actions {
  border-top: 1px solid var(--line);
  padding-top: 14px;
}

.pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  border-radius: 999px;
  padding: 4px 9px;
  font-size: 12px;
  font-weight: 650;
  background: var(--soft);
  color: var(--ink);
}

.known,
.status-known {
  background: #dff3e8;
  color: #116149;
}

.learning,
.status-learning,
.status-seen {
  background: #fff1cc;
  color: #855900;
}

.unknown,
.status-unknown {
  background: #ffe1df;
  color: #a13630;
}

.ignored,
.status-ignored {
  background: #e7ebf0;
  color: #586270;
}

.text-reader {
  line-height: 1.9;
  font-size: 17px;
}

.document-workspace {
  flex: 1;
  min-height: 0;
  align-items: start;
}

.document-reader {
  height: 100%;
  overflow: auto;
  overscroll-behavior: contain;
}

.word-token,
.phrase-token {
  background: transparent;
  border: 0;
  min-height: 0;
  padding: 1px 3px;
  border-radius: 5px;
  line-height: 1.45;
  vertical-align: baseline;
}

.phrase-token {
  border-bottom: 2px solid currentColor;
  font-weight: 700;
  padding-inline: 5px;
}

.word-token.known,
.phrase-token.known {
  background: transparent;
  color: inherit;
}

.phrase-token.known {
  border-bottom-color: transparent;
  font-weight: inherit;
}

.side-panel {
  position: sticky;
  top: 18px;
  align-self: start;
  max-height: calc(100vh - 36px);
  overflow: auto;
}

.document-workspace .side-panel {
  position: static;
  height: 100%;
  max-height: none;
}

.word-detail h2 {
  margin-top: 0;
  font-size: 30px;
}

.detail-title {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}

.detail-title h2 {
  margin: 0;
}

.status-buttons {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px;
}

.analysis-hero {
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: 18px;
  align-items: center;
}

.analysis-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.45fr) minmax(320px, 0.8fr);
  gap: 16px;
  align-items: start;
}

.knowledge-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(320px, 0.65fr);
  gap: 16px;
  align-items: start;
}

.learn-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(320px, 0.65fr);
  gap: 16px;
  align-items: start;
}

.learn-board {
  display: grid;
  gap: 16px;
  min-width: 0;
}

.learn-block {
  align-content: start;
}

.learn-block-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
}

.learn-select-button {
  position: relative;
  width: 38px;
  min-height: 38px;
  display: inline-grid;
  place-items: center;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  color: var(--muted);
  cursor: pointer;
}

.learn-select-button:hover {
  border-color: #a8b4c7;
}

.learn-select-button.active {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}

.learn-select-button input {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}

.learn-filter {
  display: grid;
  gap: 6px;
  min-width: 280px;
}

.learn-filter-row {
  display: flex;
  align-items: end;
  gap: 10px;
  flex-wrap: wrap;
}

.learn-filter-row .learn-filter {
  flex: 1 1 420px;
}

.learn-filter-row button {
  flex: 0 0 auto;
}

.kg-mode {
  display: block;
}

.kg-main,
.kg-card-sections {
  display: grid;
  gap: 16px;
}

.kg-form {
  display: grid;
  gap: 12px;
}

.kg-form textarea {
  min-height: calc(2lh + 18px);
  resize: vertical;
}

.kg-theme-card {
  display: grid;
  gap: 18px;
}

.kg-card-sections h3,
.kg-theme-card h3 {
  margin: 0 0 10px;
  font-size: 15px;
}

.kg-vocabulary {
  align-items: flex-start;
}

.kg-bridge-card {
  padding: 14px 16px;
}

.kg-bridge-card .section-title {
  margin-bottom: 8px;
}

.kg-bridge-card .section-title h2 {
  font-size: 18px;
}

.kg-bridges {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.kg-bridges button {
  display: inline-flex;
  align-items: center;
  max-width: 100%;
  min-height: 32px;
  padding: 6px 10px;
  text-align: left;
  line-height: 1.2;
}

.kg-bridges strong {
  font-size: 13px;
  overflow-wrap: anywhere;
}

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

.context-strip {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(190px, 1fr));
  gap: 10px;
}

.context-card {
  min-height: 92px;
  display: grid;
  align-content: start;
  gap: 8px;
  text-align: left;
}

.context-card.active {
  border-color: var(--accent);
  box-shadow: inset 0 0 0 1px var(--accent);
}

.context-card span,
.bridge-list span {
  display: block;
  color: var(--muted);
  font-size: 12px;
}

.goal-form {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 10px;
  margin-top: 14px;
}

.context-main {
  display: flex;
  justify-content: space-between;
  gap: 18px;
  align-items: center;
}

.context-main h2 {
  margin: 4px 0 8px;
}

.small-ring {
  width: 112px;
  flex: 0 0 auto;
}

.small-ring::after {
  width: 78px;
}

.small-ring strong {
  font-size: 22px;
}

.knowledge-session {
  display: grid;
  gap: 12px;
}

.knowledge-card {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 12px;
  border-bottom: 1px solid var(--line);
  padding-bottom: 12px;
}

.knowledge-card:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}

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

.knowledge-graph {
  display: grid;
  gap: 14px;
}

.graph-group {
  display: grid;
  gap: 8px;
}

.graph-group div,
.bridge-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.graph-node {
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 5px 10px;
  font-size: 13px;
}

.bridge-list button {
  text-align: left;
  height: auto;
}

.analysis-clouds {
  min-width: 0;
}

.analysis-detail {
  min-width: 0;
}

.analysis-groups {
  display: grid;
  gap: 16px;
}

.cloud-group h3 {
  margin: 0 0 10px;
  font-size: 16px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.word-cloud {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.detail-examples {
  margin: 8px 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 6px;
}

.detail-examples li {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 8px;
}

.detail-examples li span {
  flex: 1;
}

.ring {
  width: 176px;
  aspect-ratio: 1;
  border-radius: 50%;
  display: grid;
  place-items: center;
  background: conic-gradient(var(--accent-2) calc(var(--value) * 1%), #dfe6ef 0);
  position: relative;
}

.ring::after {
  content: "";
  width: 126px;
  aspect-ratio: 1;
  background: #fff;
  border-radius: 50%;
  position: absolute;
}

.ring strong {
  z-index: 1;
  font-size: 34px;
}

.list {
  display: grid;
  gap: 10px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.list li {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  border-bottom: 1px solid var(--line);
  padding-bottom: 10px;
}

.auth {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 24px;
  background:
    linear-gradient(135deg, rgba(34, 102, 170, 0.12), rgba(22, 134, 111, 0.08)),
    #edf2f7;
  position: relative;
}

.auth-home {
  position: absolute;
  top: 24px;
  left: 24px;
  color: var(--ink);
  font-weight: 800;
  text-decoration: none;
}

.auth-card {
  width: min(440px, 100%);
  max-width: calc(100vw - 32px);
  display: grid;
  gap: 14px;
}

.auth-card h1,
.auth-card p {
  margin-top: 0;
}

.auth-card .label {
  display: grid;
  gap: 6px;
  min-width: 0;
}

.auth-card .form button {
  width: 100%;
}

.auth-card input {
  min-width: 0;
}

.landing {
  min-height: 100vh;
  background: #f6f8fb;
}

.landing-nav {
  min-height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding: 18px clamp(18px, 5vw, 64px);
}

.landing-hero {
  min-height: calc(100vh - 72px);
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(320px, 1.05fr);
  gap: clamp(24px, 5vw, 72px);
  align-items: center;
  padding: 18px clamp(18px, 5vw, 64px) 54px;
}

.landing-copy {
  display: grid;
  gap: 22px;
  max-width: 660px;
}

.landing-copy h1 {
  margin: 0;
  font-size: clamp(40px, 6vw, 74px);
  line-height: 1.02;
}

.landing-copy p {
  margin: 0;
  max-width: 590px;
  color: #475467;
  font-size: 18px;
  line-height: 1.6;
}

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

.landing-visual {
  min-height: 460px;
  display: grid;
  place-items: center;
  background:
    linear-gradient(145deg, rgba(34, 102, 170, 0.92), rgba(18, 32, 51, 0.96)),
    #172033;
  border-radius: 8px;
  padding: clamp(18px, 4vw, 42px);
  box-shadow: var(--shadow);
}

.analysis-window {
  width: min(560px, 100%);
  display: grid;
  gap: 18px;
  background: rgba(255, 255, 255, 0.94);
  border: 1px solid rgba(255, 255, 255, 0.7);
  border-radius: 8px;
  padding: clamp(18px, 3vw, 30px);
}

.analysis-bar {
  display: flex;
  gap: 7px;
}

.analysis-bar span {
  width: 11px;
  aspect-ratio: 1;
  border-radius: 50%;
  background: #cbd5e1;
}

.analysis-text {
  font-size: clamp(22px, 3vw, 34px);
  line-height: 1.45;
  font-weight: 750;
}

.analysis-text mark {
  border-radius: 6px;
  padding: 1px 6px;
}

.analysis-row {
  display: flex;
  align-items: end;
  gap: 10px;
}

.analysis-row strong {
  font-size: 46px;
  line-height: 1;
}

.analysis-row span {
  color: var(--muted);
}

.analysis-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.analysis-chips span {
  background: var(--soft);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 6px 10px;
  font-size: 13px;
}

.landing-points {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  background: var(--line);
}

.landing-points article {
  background: #fff;
  padding: clamp(22px, 4vw, 42px);
}

.landing-points h2 {
  margin: 0 0 8px;
}

.landing-points p {
  margin: 0;
  color: var(--muted);
  line-height: 1.55;
}

.landing-story {
  display: grid;
  gap: 34px;
  padding: clamp(42px, 7vw, 86px) clamp(18px, 5vw, 64px);
  background: #fff;
}

.landing-section-head {
  max-width: 920px;
  display: grid;
  gap: 14px;
}

.landing-section-head h2,
.landing-knowledge h2,
.landing-final h2 {
  margin: 0;
  font-size: clamp(30px, 4vw, 52px);
  line-height: 1.08;
}

.landing-section-head p,
.landing-workflow p,
.landing-knowledge p,
.landing-feature-grid p,
.landing-quote p {
  margin: 0;
  color: #475467;
  line-height: 1.65;
}

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

.landing-workflow article,
.landing-feature-grid article,
.topic-map {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #f8fafc;
  padding: clamp(18px, 3vw, 28px);
}

.landing-workflow article {
  display: grid;
  align-content: start;
  gap: 12px;
}

.landing-workflow h3,
.landing-feature-grid h3 {
  margin: 0;
  font-size: 20px;
  line-height: 1.25;
}

.step-index {
  color: var(--accent);
  font-weight: 800;
  font-size: 13px;
}

.landing-tags,
.topic-map div {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.landing-tags span,
.topic-map span {
  border: 1px solid var(--line);
  border-radius: 999px;
  background: #fff;
  padding: 6px 10px;
  color: var(--ink);
  font-size: 13px;
}

.landing-knowledge {
  display: grid;
  grid-template-columns: minmax(0, 0.8fr) minmax(320px, 1.2fr);
  gap: 22px;
  align-items: center;
  background: #eef5fb;
  border: 1px solid #d6e5f2;
  border-radius: 8px;
  padding: clamp(22px, 4vw, 42px);
}

.landing-knowledge > div:first-child {
  display: grid;
  gap: 14px;
}

.topic-map {
  background: #fff;
  display: grid;
  gap: 14px;
}

.topic-map strong {
  font-size: 24px;
}

.topic-map hr {
  width: 100%;
  border: 0;
  border-top: 1px solid var(--line);
}

.landing-feature-grid article {
  background: #fff;
}

.landing-quote {
  margin: 0;
  border-left: 4px solid var(--accent-2);
  background: #edf8f4;
  border-radius: 8px;
  padding: clamp(18px, 3vw, 28px);
  max-width: 920px;
}

.landing-quote p {
  color: var(--ink);
  font-size: 20px;
  font-weight: 700;
}

.landing-final {
  display: grid;
  gap: 18px;
  justify-items: start;
  border-top: 1px solid var(--line);
  padding-top: 34px;
}

.help-page {
  display: grid;
  gap: 1px;
  background: var(--line);
  margin: -28px;
}

.help-page-public {
  margin: 0;
}

.help-hero {
  min-height: 520px;
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(320px, 1.1fr);
  gap: clamp(24px, 5vw, 64px);
  align-items: center;
  padding: clamp(34px, 6vw, 76px) clamp(18px, 5vw, 64px);
  background:
    linear-gradient(135deg, rgba(255, 255, 255, 0.96), rgba(238, 245, 251, 0.96)),
    #f8fafc;
}

.help-copy {
  display: grid;
  gap: 18px;
  max-width: 720px;
}

.help-copy h1 {
  margin: 0;
  font-size: clamp(28px, 3vw, 42px);
  line-height: 1.08;
}

.help-page .landing-section-head h2,
.help-page .landing-knowledge h2 {
  font-size: clamp(28px, 3vw, 42px);
}

.help-copy p {
  margin: 0;
  max-width: 620px;
  color: #475467;
  font-size: 18px;
  line-height: 1.62;
}

.help-flow {
  display: grid;
  gap: 12px;
  position: relative;
}

.help-flow::before {
  content: "";
  position: absolute;
  left: 28px;
  top: 34px;
  bottom: 34px;
  width: 2px;
  background: #c9d8e8;
}

.help-flow div {
  position: relative;
  display: grid;
  grid-template-columns: 90px minmax(0, 1fr);
  gap: 16px;
  align-items: center;
  min-height: 82px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  box-shadow: var(--shadow);
  padding: 18px 20px;
}

.help-flow strong {
  color: var(--accent);
  font-size: 18px;
}

.help-flow span {
  color: var(--muted);
  line-height: 1.45;
}

.help-strip {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1px;
  background: var(--line);
}

.help-strip article {
  display: grid;
  gap: 9px;
  align-content: start;
  background: #fff;
  padding: clamp(20px, 3vw, 34px);
}

.help-strip strong {
  color: var(--accent);
  font-size: 13px;
}

.help-strip span {
  font-size: 22px;
  font-weight: 800;
}

.help-strip p,
.help-timeline p {
  margin: 0;
  color: #475467;
  line-height: 1.6;
}

.help-story {
  background: #fff;
}

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

.help-timeline article {
  display: grid;
  align-content: start;
  gap: 10px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #f8fafc;
  padding: clamp(18px, 3vw, 28px);
}

.help-timeline h3 {
  margin: 0;
  font-size: 22px;
  line-height: 1.25;
}

.help-system-card {
  background: #f1f8f5;
  border-color: #d5eadf;
}

.help-map span {
  font-weight: 650;
}

.help-recommendations {
  display: grid;
  gap: 18px;
  border-top: 1px solid var(--line);
  padding-top: 34px;
}

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

.help-resource-card {
  display: grid;
  grid-template-columns: 92px minmax(0, 1fr);
  gap: 18px;
  align-items: center;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #f8fafc;
  padding: clamp(18px, 3vw, 28px);
}

.help-resource-card img {
  width: 76px;
  max-height: 76px;
  object-fit: contain;
}

.help-resource-card h3 {
  margin: 0 0 8px;
  font-size: 22px;
}

.help-resource-card p {
  margin: 0 0 12px;
  color: #475467;
  line-height: 1.6;
}

.help-resource-card a {
  color: var(--accent);
  font-weight: 750;
  text-decoration: none;
}

.help-resource-card a:hover {
  text-decoration: underline;
}

.mobile-mode {
  min-width: 320px;
  display: block;
  --mobile-nav-height: 64px;
  --mobile-sheet-height: 132px;
}

.mobile-mode .sidebar {
  display: none;
}

.mobile-mode .mobile-topbar {
  display: none;
}

.mobile-mode .mobile-bottom-nav {
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 5;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(42px, 1fr));
  gap: 2px;
  height: calc(var(--mobile-nav-height) + env(safe-area-inset-bottom));
  align-content: start;
  padding: 6px max(6px, env(safe-area-inset-left)) max(6px, env(safe-area-inset-bottom)) max(6px, env(safe-area-inset-right));
  background: rgba(255, 255, 255, 0.98);
  border-top: 1px solid var(--line);
  box-shadow: 0 -10px 28px rgba(29, 36, 51, 0.1);
}

.mobile-mode .mobile-bottom-nav a,
.mobile-mode .mobile-bottom-nav .nav-disabled,
.mobile-mode .mobile-mode-nav-button {
  min-width: 0;
  min-height: 48px;
  display: grid;
  place-items: center;
  align-content: center;
  gap: 2px;
  color: var(--muted);
  text-decoration: none;
  border-radius: 8px;
  font-size: 18px;
  border: 0;
  background: transparent;
  padding: 4px 2px;
}

.mobile-mode .mobile-bottom-nav .nav-disabled {
  color: #a0a8b5;
  cursor: not-allowed;
}

.mobile-mode .mobile-bottom-nav small,
.mobile-mode .mobile-mode-nav-button small {
  max-width: 100%;
  overflow: hidden;
  text-overflow: ellipsis;
  font-size: 9px;
  line-height: 1;
}

.mobile-mode .mobile-bottom-nav a.active,
.mobile-mode .mobile-mode-nav-button:active {
  background: #e9f2fb;
  color: var(--accent);
}

.mobile-mode .main {
  padding: 12px 12px calc(var(--mobile-nav-height) + var(--mobile-sheet-height) + 24px + env(safe-area-inset-bottom));
}

.mobile-mode.document-main,
.mobile-mode .document-main {
  height: auto;
  overflow: visible;
  display: block;
}

.mobile-mode .topbar {
  display: grid;
  gap: 12px;
  margin-bottom: 14px;
}

.mobile-mode .topbar h1 {
  font-size: 24px;
}

.mobile-mode .toolbar {
  width: 100%;
}

.mobile-mode .toolbar a,
.mobile-mode .toolbar button {
  min-height: 44px;
}

.mobile-mode .view-switch {
  width: 100%;
}

.mobile-mode .view-switch a {
  min-height: 44px;
}

.mobile-mode button,
.mobile-mode input,
.mobile-mode select {
  min-height: 44px;
}

.mobile-mode textarea {
  min-height: 42vh;
}

.mobile-mode .card {
  padding: 14px;
  box-shadow: 0 8px 24px rgba(29, 36, 51, 0.06);
}

.mobile-mode .stats {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}

.mobile-mode .metric strong {
  font-size: 24px;
}

.mobile-mode .desktop-table {
  display: none;
}

.mobile-mode .mobile-card-list {
  display: grid;
  gap: 10px;
}

.mobile-mode .form-row,
.mobile-mode .tts-grid,
.mobile-mode .analysis-hero,
.mobile-mode .analysis-layout,
.mobile-mode .knowledge-layout,
.mobile-mode .learn-layout,
.mobile-mode .goal-form,
.mobile-mode .knowledge-card,
.mobile-mode .landing-hero,
.mobile-mode .landing-points,
.mobile-mode .landing-workflow,
.mobile-mode .landing-feature-grid,
.mobile-mode .landing-knowledge,
.mobile-mode .help-hero,
.mobile-mode .help-strip,
.mobile-mode .help-timeline,
.mobile-mode .help-resource-grid {
  grid-template-columns: 1fr;
}

.mobile-mode .document-workspace {
  grid-template-columns: 1fr;
  gap: 12px;
}

.mobile-mode .document-reader {
  height: auto;
  max-height: none;
  overflow: visible;
}

.mobile-mode .text-reader {
  font-size: 18px;
  line-height: 1.95;
}

.mobile-mode .word-token,
.mobile-mode .phrase-token {
  min-height: 28px;
  padding: 3px 5px;
}

.mobile-mode .side-panel.word-detail,
.mobile-mode .document-workspace .side-panel.word-detail {
  position: fixed;
  top: auto;
  left: 0;
  right: 0;
  bottom: calc(var(--mobile-nav-height) + env(safe-area-inset-bottom));
  z-index: 7;
  width: auto;
  height: auto;
  max-height: var(--mobile-sheet-height);
  overflow: auto;
  overscroll-behavior: contain;
  border-color: #cbd6e6;
  border-right: 0;
  border-left: 0;
  border-bottom: 0;
  border-radius: 8px 8px 0 0;
  background: #fff;
  box-shadow: 0 -10px 32px rgba(29, 36, 51, 0.18);
  padding: 10px 14px;
}

.mobile-mode .side-panel.word-detail:empty {
  display: none;
}

.mobile-mode .side-panel.word-detail:not(:has(.detail-title)) {
  display: none;
}

.mobile-mode .word-detail h2,
.mobile-mode .detail-title h2 {
  font-size: 18px;
  line-height: 1.15;
}

.mobile-mode .word-detail p,
.mobile-mode .word-detail .meta {
  margin: 5px 0;
  font-size: 13px;
  line-height: 1.35;
}

.mobile-mode .word-detail .detail-title {
  align-items: center;
  gap: 8px;
}

.mobile-mode .word-detail .pill {
  vertical-align: middle;
  padding: 3px 8px;
  font-size: 11px;
}

.mobile-mode .word-detail .tts-btn {
  min-height: 32px;
  padding: 4px 8px;
}

.mobile-mode .word-detail .tts-btn-mini {
  min-height: 28px;
  padding: 3px 7px;
}

.mobile-mode .detail-examples {
  gap: 4px;
  margin-top: 5px;
}

.mobile-mode .detail-examples li {
  gap: 6px;
  font-size: 13px;
  line-height: 1.35;
}

.mobile-mode .analysis-hero {
  justify-items: start;
}

.mobile-mode .ring {
  width: 136px;
}

.mobile-mode .ring::after {
  width: 98px;
}

.mobile-mode .ring strong {
  font-size: 27px;
}

.mobile-mode .section-title,
.mobile-mode .learn-block-head,
.mobile-mode .learn-filter-row {
  display: grid;
  grid-template-columns: 1fr;
  align-items: start;
}

.mobile-mode .word-cloud {
  gap: 9px;
}

.mobile-mode button.cloud-token,
.mobile-mode .learn-token,
.mobile-mode .kg-bridges button {
  min-height: 44px;
  padding: 8px 11px;
}

.mobile-mode .learn-select-button {
  width: 44px;
  min-height: 44px;
}

.mobile-mode .learn-filter {
  min-width: 0;
}

.mobile-mode .range-control {
  grid-template-columns: minmax(0, 1fr) 48px;
}

.mobile-mode .help-page {
  margin: -14px -12px calc((var(--mobile-nav-height) + var(--mobile-sheet-height) + 24px + env(safe-area-inset-bottom)) * -1);
}

.mobile-mode .help-story,
.mobile-mode .landing-story {
  padding: 30px 14px calc(var(--mobile-nav-height) + var(--mobile-sheet-height) + 24px + env(safe-area-inset-bottom));
}

.mobile-mode .help-hero {
  min-height: auto;
  padding: 28px 14px;
}

.mobile-mode .help-copy h1,
.mobile-mode .help-page .landing-section-head h2,
.mobile-mode .help-page .landing-knowledge h2 {
  font-size: 28px;
}

.pagination-actions {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  flex-wrap: wrap;
  padding-top: 16px;
}

.pagination-summary {
  margin: 14px 0 0;
  text-align: center;
}

.empty {
  padding: 28px;
  text-align: center;
  color: var(--muted);
}

.notice {
  border-left: 4px solid var(--accent);
  background: #e9f2fb;
  padding: 12px 14px;
  border-radius: 8px;
}

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

  .sidebar {
    position: sticky;
    top: 0;
    z-index: 2;
  }

  .nav {
    grid-template-columns: repeat(auto-fit, minmax(92px, 1fr));
  }

  .stats,
  .two,
  .form-row,
  .tts-grid,
  .analysis-hero,
  .analysis-layout,
  .knowledge-layout,
  .learn-layout,
  .goal-form,
  .knowledge-card,
  .landing-hero,
  .landing-points,
    .landing-workflow,
    .landing-feature-grid,
    .landing-knowledge,
    .help-hero,
    .help-strip,
    .help-timeline,
    .help-resource-grid {
    grid-template-columns: 1fr;
  }

  .landing-hero {
    min-height: auto;
  }

  .landing-copy h1 {
    font-size: 40px;
  }

  .landing-visual {
    min-height: 360px;
  }

  .main {
    padding: 18px;
  }

  .help-page {
    margin: -18px;
  }

  .help-page-public {
    margin: 0;
  }

  .help-hero {
    min-height: auto;
  }

  .help-copy h1 {
    font-size: 28px;
  }

  .help-page .landing-section-head h2,
  .help-page .landing-knowledge h2 {
    font-size: 28px;
  }

  .help-flow div {
    grid-template-columns: 1fr;
    gap: 6px;
  }

  .help-resource-card {
    grid-template-columns: 1fr;
  }

  .document-main {
    height: auto;
    overflow: visible;
  }

  .document-workspace {
    min-height: 0;
  }

  .document-reader,
  .document-workspace .side-panel {
    height: auto;
    max-height: none;
  }

  .status-buttons {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 900px) {
  .desktop-mode {
    display: grid;
    grid-template-columns: 248px minmax(720px, 1fr);
    overflow-x: auto;
  }

  .desktop-mode .sidebar {
    position: static;
    display: flex;
  }

  .desktop-mode .nav {
    grid-template-columns: 1fr;
  }

  .desktop-mode .main {
    min-width: 720px;
  }

  .desktop-mode .mobile-topbar,
  .desktop-mode .mobile-bottom-nav {
    display: none;
  }
}


/* Mobile-only relocation of Help / Words / Desktop into Settings */
.settings-menu-title { margin: 0 0 10px; font-size: 1rem; }
.settings-menu { display: flex; flex-direction: column; gap: 8px; }
.settings-menu-link {
  display: flex; align-items: center; gap: 10px; width: 100%;
  padding: 12px 14px; border: 1px solid var(--border); border-radius: 12px;
  background: #fff; font: inherit; font-size: 1rem; color: inherit;
  text-align: left; text-decoration: none; cursor: pointer;
}
.settings-menu-link:hover { background: rgba(0, 0, 0, 0.03); }
.settings-menu-link .nav-icon { font-size: 1.1rem; }

/* Premium / billing */
.premium-card { display: flex; flex-direction: column; gap: 16px; }
.premium-status h2 { margin: 0 0 4px; }
.premium-status.is-premium h2 { color: var(--accent); }
.premium-features { margin: 0; padding-left: 20px; display: flex; flex-direction: column; gap: 6px; }
.premium-features li { color: #3b4b5c; }
.premium-history-title { margin: 8px 0 0; font-size: 1rem; }
.subscription-row { display: flex; align-items: center; justify-content: space-between; gap: 16px; }

/* Auth: Turnstile widget + must-change banner */
.turnstile-box { min-height: 65px; margin: 4px 0; }
.must-change-banner { margin-bottom: 12px; }

/* Admin panel */
.admin-stats { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.admin-layout { display: grid; grid-template-columns: minmax(0, 1.6fr) minmax(0, 1fr); gap: 16px; margin-top: 16px; align-items: start; }
.admin-users .section-title { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.admin-users #adminSearch { padding: 8px 10px; border: 1px solid var(--border); border-radius: 10px; min-width: 200px; }
.admin-user-row { cursor: pointer; }
.admin-user-row:hover { background: rgba(0,0,0,0.03); }
.admin-actions { display: flex; flex-direction: column; gap: 12px; margin-top: 12px; }
.admin-action-row { display: flex; flex-wrap: wrap; gap: 8px; align-items: end; }
.admin-actions[data-loading] { opacity: 0.6; pointer-events: none; }
.mobile-mode .admin-layout, .mobile-mode .admin-stats { grid-template-columns: 1fr; }