:root {
  color-scheme: light;
  --bg: #edf2f5;
  --surface: #ffffff;
  --surface-muted: #f3f7f8;
  --surface-strong: #e6f9f3;
  --text: #142538;
  --text-muted: #637687;
  --line: #dce6e9;
  --line-strong: #afbec3;
  --mint: #50d7b0;
  --mint-soft: #e6f9f3;
  --teal: #15997c;
  --teal-strong: #08725d;
  --blue: #2466b3;
  --rose: #d44f6a;
  --amber: #c47a12;
  --success: #15724f;
  --shadow: 0 14px 42px rgba(26, 49, 65, 0.08);
  --radius: 16px;
  --radius-small: 10px;
  font-family:
    Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI",
    sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  min-width: 320px;
  background: radial-gradient(circle at 8% 0%, #e5f8f2 0, transparent 34%), var(--bg);
}

body {
  min-height: 100vh;
  margin: 0;
  color: var(--text);
  background: var(--bg);
}

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

button,
select,
input[type="range"],
input[type="color"] {
  touch-action: manipulation;
}

button,
select {
  cursor: pointer;
}

button {
  cursor: pointer;
}

button:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible,
.review-field:focus-visible,
.table-select:focus-visible,
.region-hotspot:focus-visible {
  outline: 3px solid rgba(37, 217, 167, 0.36);
  outline-offset: 3px;
}

.app-header {
  position: sticky;
  top: 0;
  z-index: 20;
  border-bottom: 1px solid rgba(194, 211, 216, 0.75);
  background: rgba(255, 255, 255, 0.96);
  backdrop-filter: blur(16px);
  box-shadow: 0 4px 20px rgba(23, 49, 65, 0.06);
}

.skip-link {
  position: fixed;
  z-index: 50;
  top: 8px;
  left: 12px;
  padding: 9px 12px;
  border-radius: var(--radius-small);
  color: #ffffff;
  background: var(--teal-strong);
  transform: translateY(-150%);
}

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

#mainContent {
  scroll-margin-top: 116px;
}

.header-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  width: min(1800px, 100%);
  min-height: 62px;
  margin: 0 auto;
  padding: 10px clamp(16px, 2vw, 32px);
}

.brand-block {
  display: flex;
  align-items: center;
  gap: 11px;
  min-width: 0;
  color: inherit;
  text-decoration: none;
}

.brand-mark {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 3px;
  flex: 0 0 auto;
  width: 30px;
  height: 34px;
}

.brand-mark i {
  display: block;
  width: 4px;
  border-radius: 2px;
  background: var(--mint);
}

.brand-mark i:nth-child(1) {
  height: 12px;
}

.brand-mark i:nth-child(2) {
  height: 21px;
}

.brand-mark i:nth-child(3) {
  height: 29px;
}

.wordmark {
  display: block;
  color: var(--text);
  font-size: 1.1rem;
  font-weight: 820;
  line-height: 1;
}

.wordmark strong {
  font-weight: 520;
}

.brand-subtitle {
  display: block;
  margin-top: 4px;
  color: var(--text-muted);
  font-size: 0.62rem;
  font-weight: 700;
  text-transform: uppercase;
}

.eyebrow {
  margin: 0 0 4px;
  color: var(--text-muted);
  font-size: 0.74rem;
  font-weight: 720;
  letter-spacing: 0;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  overflow-wrap: anywhere;
}

h1 {
  margin: 0;
  font-size: 1.05rem;
  line-height: 1.2;
}

h2 {
  margin: 0;
  font-size: 1.02rem;
  line-height: 1.25;
}

h3 {
  margin: 0;
  font-size: 0.9rem;
  line-height: 1.3;
}

.header-actions {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  flex: 0 0 auto;
}

.chat-visibility-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 38px;
  padding: 8px 13px;
  border: 1px solid #b8ddd1;
  border-radius: 999px;
  color: var(--teal-strong);
  background: #edf9f5;
  font-size: 0.78rem;
  font-weight: 800;
  white-space: nowrap;
}

.chat-visibility-toggle:hover,
.chat-visibility-toggle.is-active {
  border-color: var(--mint);
  background: #dff7ee;
}

.chat-visibility-toggle .toolbar-icon {
  width: 16px;
  height: 16px;
}

.nav-band {
  border-top: 1px solid var(--line);
}

.primary-nav {
  display: flex;
  align-items: center;
  gap: 4px;
  width: min(1800px, 100%);
  margin: 0 auto;
  padding: 0;
  padding-inline: clamp(16px, 2vw, 32px);
}

.nav-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 45px;
  padding: 11px 16px 9px;
  border-bottom: 3px solid transparent;
  border-radius: 0;
  color: var(--text-muted);
  font-size: 0.82rem;
  font-weight: 750;
  text-decoration: none;
}

.nav-link:hover {
  color: var(--teal-strong);
  background: var(--mint-soft);
}

.nav-link.is-active {
  color: var(--teal-strong);
  border-bottom-color: var(--teal);
  background: transparent;
  box-shadow: none;
}

.workspace-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(300px, 360px);
  gap: 18px;
  align-items: start;
  width: min(1800px, 100%);
  min-height: calc(100vh - 108px);
  margin: 0 auto;
  padding: 20px clamp(16px, 2vw, 32px);
}

.workspace-grid.has-chat {
  grid-template-columns: minmax(280px, 330px) minmax(0, 1fr) minmax(300px, 360px);
}

.records-page {
  display: grid;
  gap: 24px;
  width: min(1480px, 100%);
  margin: 0 auto;
  padding: 28px;
}

.records-intro {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(260px, 360px);
  gap: 22px;
  align-items: stretch;
  padding: 26px;
  border: 1px solid #16263a;
  border-radius: var(--radius);
  color: #ffffff;
  background: #0b1728;
  box-shadow: none;
}

.records-intro .eyebrow {
  color: var(--mint);
}

.records-intro h1 {
  font-size: 1.35rem;
}

.records-intro p:not(.eyebrow) {
  max-width: 720px;
  margin: 10px 0 0;
  color: #b7c1cc;
  line-height: 1.55;
}

.ingest-panel {
  display: grid;
  align-content: center;
  gap: 8px;
  min-width: 0;
  padding: 16px;
  border: 1px solid rgba(57, 211, 167, 0.42);
  border-radius: var(--radius);
  background: #111f32;
}

.ingest-panel span {
  color: var(--mint);
  font-size: 0.76rem;
  font-weight: 760;
  text-transform: uppercase;
}

.ingest-panel code,
.record-card-meta code {
  white-space: normal;
  overflow-wrap: anywhere;
}

.ingest-panel code {
  color: #e7edf2;
}

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

.record-card {
  display: grid;
  gap: 14px;
  min-width: 0;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  box-shadow: 0 2px 8px rgba(10, 23, 40, 0.04);
  transition: border-color 140ms ease, transform 140ms ease;
}

.record-card:hover {
  border-color: rgba(21, 153, 124, 0.48);
  transform: translateY(-1px);
}

.record-card.is-selected {
  border-color: rgba(57, 211, 167, 0.78);
  box-shadow:
    inset 0 0 0 1px rgba(57, 211, 167, 0.18),
    0 2px 8px rgba(10, 23, 40, 0.04);
}

.record-card-topline {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  min-width: 0;
  color: var(--text-muted);
  font-size: 0.76rem;
  font-weight: 760;
}

.record-card h3 {
  font-size: 1rem;
}

.record-card p {
  margin: 0;
  color: var(--text-muted);
  font-size: 0.88rem;
  line-height: 1.5;
}

.record-card-meta {
  display: grid;
  gap: 8px;
  margin: 0;
}

.record-card-meta div {
  display: grid;
  grid-template-columns: 86px minmax(0, 1fr);
  gap: 10px;
  min-width: 0;
  padding-top: 8px;
  border-top: 1px solid var(--line);
}

.record-card-meta dt {
  color: var(--text-muted);
  font-size: 0.76rem;
  font-weight: 720;
}

.record-card-meta dd {
  margin: 0;
  min-width: 0;
  font-size: 0.8rem;
  font-weight: 720;
}

.open-record-button {
  min-height: 38px;
  border: 1px solid var(--mint);
  border-radius: var(--radius-small);
  color: #04251e;
  background: var(--mint);
  font-size: 0.82rem;
  font-weight: 760;
}

.open-record-button:disabled {
  cursor: not-allowed;
  color: var(--text-muted);
  background: var(--surface-muted);
  border-color: var(--line);
}

.evaluation-section {
  min-width: 0;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  box-shadow: 0 2px 8px rgba(10, 23, 40, 0.04);
}

.section-heading.compact {
  margin: 0 0 12px;
}

.evaluation-summary {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 12px;
}

.evaluation-summary span {
  min-height: 30px;
  padding: 6px 10px;
  border: 1px solid var(--line);
  border-radius: var(--radius-small);
  color: var(--text-muted);
  background: var(--surface-muted);
  font-size: 0.78rem;
  font-weight: 720;
}

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

.evaluation-table-wrap {
  min-width: 0;
  overflow-x: auto;
}

.evaluation-table {
  width: 100%;
  min-width: 1040px;
  border-collapse: collapse;
  font-size: 0.8rem;
}

.evaluation-table th,
.evaluation-table td {
  padding: 10px 8px;
  border-bottom: 1px solid var(--line);
  text-align: left;
  vertical-align: middle;
}

.evaluation-table thead th {
  color: #dce4eb;
  background: #0b1728;
  font-size: 0.74rem;
  font-weight: 760;
  text-transform: uppercase;
}

.table-record-button {
  padding: 0;
  border: 0;
  color: var(--teal);
  background: transparent;
  font-weight: 780;
  text-align: left;
}

.table-input,
.table-select {
  width: 100%;
  min-height: 34px;
  min-width: 78px;
  border: 1px solid var(--line);
  border-radius: var(--radius-small);
  color: var(--text);
  background: var(--surface);
  font-size: 0.8rem;
}

.table-input {
  padding: 6px 8px;
}

.table-input.compact {
  min-width: 64px;
  max-width: 84px;
}

.table-select {
  min-width: 154px;
  padding: 6px 8px;
}

.table-check-button {
  min-height: 34px;
  padding: 6px 10px;
  border: 1px solid rgba(17, 133, 116, 0.28);
  border-radius: var(--radius-small);
  color: var(--teal-strong);
  background: var(--mint-soft);
  font-size: 0.78rem;
  font-weight: 760;
  white-space: nowrap;
}

.table-check-button:hover {
  border-color: var(--teal);
  background: rgba(71, 210, 174, 0.18);
}

.note-input {
  min-width: 160px;
}

.computed-ef {
  font-weight: 780;
}

.evaluation-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 28px;
  min-width: 78px;
  padding: 4px 8px;
  border-radius: 999px;
  color: var(--text-muted);
  background: var(--surface-muted);
  font-size: 0.74rem;
  font-weight: 780;
}

.evaluation-badge.ok {
  color: var(--success);
  background: rgba(40, 122, 66, 0.1);
}

.evaluation-badge.warn {
  color: #9a5b00;
  background: rgba(212, 145, 24, 0.14);
}

.evaluation-badge.idle {
  color: var(--text-muted);
  background: var(--surface-muted);
}

.case-panel,
.detail-panel {
  min-width: 0;
  padding: 20px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  box-shadow: var(--shadow);
}

.case-panel {
  border-right: 1px solid var(--line);
}

.detail-panel {
  border-left: 1px solid var(--line);
}

.chat-panel,
.detail-panel {
  position: sticky;
  top: 100px;
  align-self: start;
  height: calc(100vh - 120px);
  overflow: hidden;
}

.chat-panel {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.case-context,
.chat-heading,
.checklist-heading {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
  min-width: 0;
}

.case-context h2 {
  font-size: 0.94rem;
}

.case-context > span {
  flex: 0 0 auto;
  padding: 5px 8px;
  border: 1px solid var(--line);
  border-radius: var(--radius-small);
  color: var(--text-muted);
  background: var(--mint-soft);
  font-size: 0.72rem;
  font-weight: 740;
}

.diagnostic-chat {
  display: grid;
  grid-template-rows: auto auto minmax(180px, 1fr) auto auto;
  gap: 10px;
  min-height: 0;
  flex: 1 1 auto;
}

.chat-heading h2,
.checklist-heading h2 {
  font-size: 1rem;
}

.api-status {
  flex: 0 0 auto;
  padding: 5px 8px;
  border: 1px solid var(--line);
  border-radius: var(--radius-small);
  color: var(--text-muted);
  background: var(--surface-muted);
  font-size: 0.7rem;
  font-weight: 760;
}

.api-status.is-online {
  border-color: rgba(21, 114, 79, 0.3);
  color: var(--success);
  background: rgba(37, 217, 167, 0.1);
}

.api-status.is-offline {
  border-color: rgba(196, 122, 18, 0.28);
  color: #8a560c;
  background: rgba(196, 122, 18, 0.1);
}

.scope-banner {
  padding: 8px 10px;
  border-left: 4px solid var(--mint);
  color: var(--text-muted);
  background: var(--surface-muted);
  font-size: 0.76rem;
  font-weight: 720;
}

.chat-messages {
  display: grid;
  align-content: start;
  gap: 8px;
  min-height: 0;
  padding: 10px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow-y: auto;
  background: var(--surface-muted);
}

.chat-message {
  max-width: 92%;
  padding: 9px 10px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
}

.chat-message.is-user {
  justify-self: end;
  border-color: rgba(15, 143, 136, 0.24);
  background: var(--mint-soft);
}

.chat-message.is-system {
  border-color: rgba(196, 122, 18, 0.3);
  background: rgba(196, 122, 18, 0.08);
}

.chat-message.is-pending {
  opacity: 0.72;
}

.chat-message > span {
  display: block;
  margin-bottom: 4px;
  color: var(--text-muted);
  font-size: 0.68rem;
  font-weight: 780;
  text-transform: uppercase;
}

.chat-message p {
  margin: 0;
  color: var(--text);
  font-size: 0.82rem;
  line-height: 1.45;
  white-space: pre-wrap;
}

.chat-prompts {
  display: flex;
  gap: 6px;
  overflow-x: auto;
}

.chat-prompts button {
  flex: 0 0 auto;
  min-height: 32px;
  padding: 6px 9px;
  border: 1px solid var(--line);
  border-radius: var(--radius-small);
  color: var(--teal-strong);
  background: var(--surface);
  font-size: 0.72rem;
  font-weight: 760;
}

.chat-prompts button:hover {
  border-color: var(--mint);
  background: var(--mint-soft);
}

.chat-composer {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 7px;
}

.chat-composer label {
  grid-column: 1 / -1;
  color: var(--text-muted);
  font-size: 0.72rem;
  font-weight: 760;
}

.chat-composer textarea {
  min-width: 0;
  min-height: 86px;
  padding: 9px 10px;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  color: var(--text);
  background: var(--surface);
  resize: vertical;
}

.chat-composer button,
.check-answer-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 7px;
  min-height: 40px;
  padding: 8px 12px;
  border: 1px solid var(--mint);
  border-radius: var(--radius-small);
  color: #04251e;
  background: var(--mint);
  font-size: 0.78rem;
  font-weight: 780;
}

.chat-composer button {
  align-self: end;
}

.chat-composer button:disabled {
  cursor: wait;
  opacity: 0.56;
}

.record-summary,
.metrics-section,
.workflow-section,
.annotation-detail {
  min-width: 0;
}

.record-summary p:not(.eyebrow) {
  margin: 12px 0 0;
  color: var(--text-muted);
  font-size: 0.9rem;
  line-height: 1.55;
}

.case-meta {
  display: grid;
  gap: 10px;
  margin: 18px 0 0;
}

.case-meta div {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
  min-width: 0;
  padding: 9px 0;
  border-bottom: 1px solid var(--line);
}

.case-meta dt {
  color: var(--text-muted);
  font-size: 0.78rem;
  font-weight: 680;
}

.case-meta dd {
  margin: 0;
  max-width: 58%;
  text-align: right;
  font-size: 0.82rem;
  font-weight: 720;
  overflow-wrap: anywhere;
}

.section-heading {
  margin: 24px 0 12px;
}

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

.metric-card,
.detail-card {
  min-width: 0;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  box-shadow: none;
}

.metric-card {
  display: grid;
  gap: 8px;
  min-height: 104px;
  padding: 13px;
}

.metric-card p {
  margin: 0 0 6px;
  color: var(--text-muted);
  font-size: 0.74rem;
  font-weight: 720;
}

.metric-card strong {
  display: block;
  font-size: 1.28rem;
  line-height: 1.1;
}

.metric-card span {
  align-self: end;
  width: fit-content;
  max-width: 100%;
  padding: 4px 8px;
  border-radius: 999px;
  color: var(--success);
  background: rgba(37, 217, 167, 0.14);
  font-size: 0.72rem;
  font-weight: 720;
}

.workflow-list {
  display: grid;
  gap: 8px;
}

.workflow-item {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 4px 10px;
  min-width: 0;
  padding: 10px 0;
  border-bottom: 1px solid var(--line);
}

.workflow-item span,
.workflow-item em {
  color: var(--text-muted);
  font-size: 0.78rem;
  font-style: normal;
  font-weight: 680;
}

.workflow-item strong {
  font-size: 0.84rem;
}

.workflow-item em {
  grid-column: 1 / -1;
}

.viewer-panel {
  display: grid;
  grid-template-rows: auto minmax(420px, 1fr) auto;
  min-width: 0;
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  box-shadow: var(--shadow);
}

.viewer-toolbar {
  display: grid;
  grid-template-columns: 1fr;
  align-items: start;
  gap: 10px;
  margin-bottom: 14px;
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #f7fafb;
}

.viewer-context {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  min-width: 0;
  padding: 4px 4px 12px;
  border-bottom: 1px solid var(--line);
}

.viewer-context h1 {
  font-size: 1.02rem;
}

.viewer-status {
  margin: 4px 0 0;
  color: var(--text-muted);
  font-size: 0.7rem;
  line-height: 1.35;
}

.viewer-context > span {
  flex: 0 0 auto;
  color: var(--text-muted);
  font-size: 0.73rem;
  font-weight: 750;
}

.zoom-mode-control,
.measure-control {
  display: inline-flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 5px;
  max-width: 100%;
  padding: 3px;
  border: 1px solid var(--line);
  border-radius: var(--radius-small);
  background: var(--surface);
}

.zoom-mode-control[hidden],
.measure-control[hidden] {
  display: none;
}

.zoom-mode-control > span {
  padding-inline: 7px;
  color: var(--text-muted);
  font-size: 0.7rem;
  font-weight: 800;
}

.zoom-mode-control button,
.measure-control button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 5px;
  min-height: 34px;
  padding: 6px 10px;
  border: 0;
  border-radius: 8px;
  color: var(--text-muted);
  background: transparent;
  font-size: 0.75rem;
  font-weight: 800;
}

.zoom-mode-control button:hover,
.zoom-mode-control button.is-active,
.measure-control button:hover:not(:disabled) {
  color: #083b30;
  background: var(--mint-soft);
}

.measure-control button:disabled {
  cursor: not-allowed;
  opacity: 0.45;
}

.toolbar-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  min-width: 0;
}

.segmented-control {
  display: inline-grid;
  grid-auto-flow: column;
  gap: 2px;
  max-width: 100%;
  padding: 3px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface-muted);
}

.segment-button {
  min-height: 34px;
  min-width: 0;
  padding: 6px 12px;
  border: 0;
  border-radius: var(--radius-small);
  color: var(--text-muted);
  background: transparent;
  font-size: 0.82rem;
  font-weight: 720;
}

.segment-button.is-active {
  color: var(--text);
  background: var(--surface);
  box-shadow: 0 2px 9px rgba(7, 29, 43, 0.08);
}

.tool-group,
.zoom-control,
.frame-control,
.drawing-control {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  max-width: 100%;
  padding: 3px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface-muted);
}

.tool-button,
.zoom-control button,
.frame-control button,
.drawing-control button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  min-height: 34px;
  min-width: 38px;
  padding: 6px 10px;
  border: 0;
  border-radius: var(--radius-small);
  color: var(--text-muted);
  background: transparent;
  font-size: 0.8rem;
  font-weight: 760;
}

.tool-button.is-active,
.zoom-control button:hover,
.zoom-control button.is-active,
.frame-control button:hover,
.frame-control button.is-active,
.drawing-control button:hover:not(:disabled),
.drawing-control button.is-active {
  color: #04251e;
  background: var(--mint);
}

.frame-control button.is-frozen {
  box-shadow: inset 0 0 0 1px rgba(4, 37, 30, 0.2);
}

.toolbar-icon {
  flex: 0 0 auto;
  width: 17px;
  height: 17px;
}

.zoom-control > .zoom-value,
.frame-control > .frame-counter {
  min-width: 52px;
  color: var(--text);
  font-size: 0.8rem;
  font-weight: 780;
  text-align: center;
}

.frame-control {
  flex: 1 1 420px;
}

.frame-control input[type="range"] {
  flex: 1 1 160px;
  min-width: 140px;
  accent-color: var(--mint);
}

.drawing-control[hidden] {
  display: none;
}

.drawing-control button:disabled {
  cursor: not-allowed;
  opacity: 0.42;
}

.viewer-tool-hint {
  margin: 0;
  padding: 8px 10px;
  border-left: 4px solid var(--mint);
  border-radius: var(--radius-small);
  color: var(--text-muted);
  background: var(--mint-soft);
  font-size: 0.76rem;
  font-weight: 680;
  line-height: 1.4;
}

.color-control {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  min-height: 34px;
  padding: 4px 8px;
  color: var(--text-muted);
  font-size: 0.78rem;
  font-weight: 720;
}

.color-control[hidden] {
  display: none;
}

.color-control input[type="color"] {
  width: 28px;
  height: 26px;
  padding: 2px;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-small);
  background: var(--surface);
  cursor: pointer;
}

.viewer-switches {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.switch {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-height: 34px;
  padding: 6px 10px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  color: var(--text-muted);
  background: var(--surface);
  font-size: 0.8rem;
  font-weight: 720;
}

.switch input {
  width: 16px;
  height: 16px;
  accent-color: var(--mint);
}

.echo-stage {
  position: relative;
  display: grid;
  min-width: 0;
  min-height: 420px;
  place-items: center;
  border: 1px solid #1c2b3c;
  border-radius: var(--radius);
  overflow: hidden;
  background: #071015;
  box-shadow: 0 12px 28px rgba(10, 23, 40, 0.18);
}

.echo-stage[data-tool="measure"] {
  cursor: crosshair;
}

.echo-stage[data-tool="zoom"] {
  cursor: zoom-in;
}

.echo-stage[data-tool="zoom"][data-zoom-mode="out"] {
  cursor: zoom-out;
}

.echo-stage[data-tool="draw"] {
  cursor: crosshair;
}

.echo-stage[data-tool="draw"][data-drawing-mode="eraser"] {
  cursor: cell;
}

.echo-stage[data-tool="pan"] {
  cursor: grab;
}

.echo-stage[data-tool="pan"].is-dragging {
  cursor: grabbing;
}

.echo-frame {
  width: auto;
  max-width: 980px;
  height: min(68vh, 720px);
  max-height: 100%;
  aspect-ratio: var(--media-aspect, 4 / 3);
  display: block;
  transform: var(--viewer-translate, translate(0, 0)) var(--viewer-scale, scale(1));
  transform-origin: center;
  transition: transform 120ms ease;
}

.echo-media {
  width: auto;
  max-width: 980px;
  height: min(68vh, 720px);
  max-height: 100%;
  aspect-ratio: var(--media-aspect, 4 / 3);
  object-fit: contain;
  background: #071015;
  transform: var(--viewer-translate, translate(0, 0)) var(--viewer-scale, scale(1));
  transform-origin: center;
  transition: transform 120ms ease;
}

.overlay-frame {
  position: absolute;
  inset: 50% auto auto 50%;
  transform: translate(-50%, -50%) var(--viewer-translate, translate(0, 0)) var(--viewer-scale, scale(1));
  z-index: 2;
  pointer-events: none;
}

.overlay-frame.is-measuring,
.overlay-frame.is-drawing,
.overlay-frame.is-zooming {
  pointer-events: all;
  touch-action: none;
}

.overlay-frame .region-hotspot {
  pointer-events: auto;
}

.echo-frame.is-measuring .region-hotspot,
.echo-frame.is-drawing .region-hotspot,
.echo-frame.is-zooming .region-hotspot {
  pointer-events: none;
}

.scan-status {
  position: absolute;
  top: 12px;
  right: 12px;
  z-index: 3;
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 6px;
  max-width: calc(100% - 24px);
  pointer-events: none;
}

.scan-status span {
  padding: 5px 8px;
  border: 1px solid rgba(255, 255, 255, 0.22);
  border-radius: var(--radius-small);
  color: rgba(255, 255, 255, 0.84);
  background: rgba(7, 16, 21, 0.58);
  font-size: 0.72rem;
  font-weight: 700;
}

.scan-status .playback-status.is-frozen {
  border-color: rgba(255, 212, 59, 0.58);
  color: #fff1a8;
}

.scan-status .playback-status.is-playing {
  border-color: rgba(37, 217, 167, 0.58);
  color: #8ff2d5;
}

.scan-arc,
.depth-arc {
  fill: none;
  stroke: rgba(255, 255, 255, 0.18);
  stroke-width: 1.2;
}

.depth-arc.is-soft {
  stroke: rgba(255, 255, 255, 0.11);
}

.chamber-shape {
  opacity: 0.58;
  stroke: rgba(255, 255, 255, 0.5);
  stroke-width: 2;
}

.chamber-shape-1,
.chamber-shape-3 {
  opacity: 0.64;
}

.tissue-line {
  fill: none;
  stroke: rgba(246, 250, 250, 0.68);
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 6;
}

.tissue-line-3,
.tissue-line-4 {
  stroke: rgba(246, 250, 250, 0.54);
  stroke-width: 4;
}

.tissue-line-5 {
  stroke: rgba(246, 250, 250, 0.28);
  stroke-width: 7;
}

.region-hotspot {
  fill: transparent;
  opacity: 0.72;
  stroke-width: 2;
  stroke-dasharray: 8 7;
  transition:
    opacity 160ms ease,
    stroke-width 160ms ease,
    filter 160ms ease;
}

.region-hotspot:hover,
.region-hotspot:focus-visible,
.annotation-group.is-active .region-hotspot {
  opacity: 1;
  stroke-width: 3;
  filter: drop-shadow(0 0 8px rgba(37, 217, 167, 0.28));
}

.annotation-group.is-pinned .region-hotspot {
  opacity: 0.9;
}

.hotspots-hidden .region-hotspot {
  opacity: 0;
  stroke-width: 0;
  pointer-events: none;
}

.hotspots-hidden .annotation-group.is-active .region-hotspot {
  opacity: 0;
  stroke-width: 0;
}

.hotspots-hidden .region-label,
.hotspots-hidden .annotation-group.is-active .region-label {
  opacity: 0;
}

.region-label {
  opacity: 0;
  pointer-events: none;
  paint-order: stroke;
  stroke: rgba(7, 16, 21, 0.82);
  stroke-width: 5;
  fill: #ffffff;
  font-size: 24px;
  font-weight: 820;
  transition: opacity 160ms ease;
}

.labels-visible .region-label,
.annotation-group.is-active .region-label {
  opacity: 1;
}

.hotspots-hidden .region-label,
.hotspots-hidden.labels-visible .region-label,
.hotspots-hidden .annotation-group.is-active .region-label {
  opacity: 0;
}

.measurement-layer {
  pointer-events: none;
}

.drawing-layer {
  pointer-events: none;
}

.drawing-stroke {
  stroke-linecap: round;
  stroke-linejoin: round;
  filter: drop-shadow(0 1px 2px rgba(0, 0, 0, 0.72));
}

.measurement-line {
  stroke: var(--mint);
  stroke-width: 3;
  stroke-linecap: round;
  filter: drop-shadow(0 0 8px rgba(37, 217, 167, 0.45));
}

.measurement-point {
  fill: #ffffff;
  stroke: var(--mint);
  stroke-width: 3;
}

.measurement-point.is-draft {
  fill: var(--mint);
}

.measurement-label {
  paint-order: stroke;
  stroke: rgba(7, 16, 21, 0.86);
  stroke-width: 5;
  fill: #ffffff;
  font-size: 16px;
  font-weight: 820;
}

.tooltip {
  position: absolute;
  top: 0;
  left: 0;
  z-index: 5;
  display: grid;
  gap: 2px;
  min-width: 146px;
  max-width: min(240px, calc(100% - 24px));
  padding: 9px 10px;
  border: 1px solid rgba(255, 255, 255, 0.24);
  border-radius: var(--radius);
  color: #ffffff;
  background: rgba(7, 16, 21, 0.88);
  box-shadow: 0 12px 28px rgba(0, 0, 0, 0.34);
  pointer-events: none;
}

.tooltip strong {
  font-size: 0.82rem;
}

.tooltip span {
  color: rgba(255, 255, 255, 0.78);
  font-size: 0.78rem;
}

.annotation-strip {
  display: flex;
  gap: 8px;
  min-width: 0;
  margin-top: 16px;
  padding-bottom: 2px;
  overflow-x: auto;
}

.annotation-pill {
  display: inline-flex;
  align-items: center;
  flex: 0 0 auto;
  gap: 8px;
  min-height: 38px;
  max-width: 220px;
  padding: 7px 10px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  color: var(--text-muted);
  background: var(--surface);
  box-shadow: 0 8px 20px rgba(23, 33, 43, 0.05);
}

.annotation-pill strong,
.annotation-pill span {
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.annotation-pill strong {
  color: var(--text);
  font-size: 0.8rem;
}

.annotation-pill > span:not(.color-swatch) {
  color: var(--text-muted);
  font-size: 0.74rem;
  font-weight: 760;
}

.annotation-pill.is-active {
  border-color: var(--line-strong);
  background: #f9fbfc;
  box-shadow: inset 0 0 0 1px rgba(37, 217, 167, 0.24);
}

.color-swatch {
  display: inline-block;
  flex: 0 0 auto;
  width: 10px;
  height: 10px;
  border-radius: 999px;
  background: var(--annotation-color);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--annotation-color), transparent 82%);
}

.color-swatch.large {
  width: 12px;
  height: 12px;
}

.analysis-dock {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 12px;
  min-width: 0;
  margin-top: 14px;
}

.measurement-dock,
.record-check-panel {
  min-width: 0;
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: #f7fafb;
  box-shadow: none;
}

.detail-panel {
  overflow-y: auto;
}

.clinical-reference {
  display: grid;
  gap: 12px;
  margin-top: 16px;
  padding: 14px;
  border: 1px solid rgba(21, 153, 124, 0.3);
  border-radius: var(--radius);
  background: linear-gradient(180deg, var(--mint-soft), #ffffff 44%);
}

.clinical-reference-heading {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 10px;
}

.clinical-reference-heading h3 {
  font-size: 0.9rem;
}

.evidence-badge {
  flex: 0 0 auto;
  padding: 4px 7px;
  border: 1px solid rgba(21, 153, 124, 0.34);
  border-radius: 999px;
  color: var(--teal-strong);
  background: #ffffff;
  font-size: 0.66rem;
  font-weight: 800;
  text-transform: uppercase;
}

.clinical-facts {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 7px;
}

.clinical-fact {
  display: grid;
  gap: 2px;
  min-width: 0;
  padding: 8px;
  border: 1px solid var(--line);
  border-radius: var(--radius-small);
  background: rgba(255, 255, 255, 0.9);
}

.clinical-fact.is-primary {
  border-color: rgba(21, 153, 124, 0.48);
  background: #ffffff;
}

.clinical-fact span,
.clinical-fact small {
  color: var(--text-muted);
  font-size: 0.65rem;
  line-height: 1.25;
}

.clinical-fact strong {
  font-size: 0.86rem;
  line-height: 1.25;
}

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

.paired-view-summary figure {
  display: grid;
  gap: 4px;
  min-width: 0;
  margin: 0;
}

.paired-view-summary img {
  width: 100%;
  aspect-ratio: 1 / 0.82;
  border: 1px solid #1c2b3c;
  border-radius: var(--radius-small);
  object-fit: contain;
  background: #071015;
}

.paired-view-summary figcaption {
  color: var(--text-muted);
  font-size: 0.65rem;
  font-weight: 760;
}

.paired-view-summary p,
.clinical-analysis,
.clinical-method p {
  margin: 0;
  color: var(--text-muted);
  font-size: 0.72rem;
  line-height: 1.45;
}

.paired-view-summary p {
  grid-column: 1 / -1;
}

.clinical-method {
  padding-top: 9px;
  border-top: 1px solid var(--line);
}

.clinical-method summary {
  color: var(--teal-strong);
  cursor: pointer;
  font-size: 0.72rem;
  font-weight: 780;
}

.clinical-method p {
  margin-top: 7px;
}

.characteristic-form {
  display: grid;
  gap: 11px;
  margin-top: 18px;
}

.characteristic-form label {
  display: grid;
  gap: 5px;
  min-width: 0;
  color: var(--text-muted);
  font-size: 0.74rem;
  font-weight: 760;
}

.characteristic-form input,
.characteristic-form select {
  width: 100%;
  min-width: 0;
  min-height: 38px;
  padding: 7px 8px;
  border: 1px solid var(--line);
  border-radius: var(--radius-small);
  color: var(--text);
  background: var(--surface);
  font-size: 0.8rem;
}

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

.check-answer-button {
  width: 100%;
  margin-top: 2px;
}

.characteristic-results {
  margin-top: 18px;
}

.structure-quiz {
  display: grid;
  gap: 12px;
  margin-top: 16px;
  padding: 14px;
  border: 1px solid rgba(21, 153, 124, 0.3);
  border-radius: var(--radius);
  background: linear-gradient(160deg, #f2fbf8, #ffffff 45%);
}

.structure-quiz-heading {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
}

.structure-quiz-heading > span {
  flex: 0 0 auto;
  padding: 5px 8px;
  border: 1px solid rgba(57, 211, 167, 0.42);
  border-radius: var(--radius-small);
  color: var(--teal-strong);
  background: var(--mint-soft);
  font-size: 0.72rem;
  font-weight: 780;
  text-align: center;
}

.structure-figure {
  display: grid;
  gap: 7px;
  margin: 0;
}

.structure-image-wrap {
  position: relative;
  width: 100%;
  aspect-ratio: var(--structure-aspect, 4 / 3);
  border: 1px solid #1c2b3c;
  border-radius: var(--radius-small);
  overflow: hidden;
  background: #071015;
}

.structure-image-wrap img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: fill;
}

.structure-target {
  position: absolute;
  display: grid;
  width: 28px;
  height: 28px;
  place-items: center;
  border: 2px solid #ffffff;
  border-radius: 50%;
  color: #ffffff;
  background: #087d68;
  box-shadow: 0 0 0 3px rgba(8, 125, 104, 0.32), 0 3px 12px rgba(0, 0, 0, 0.5);
  font-size: 0.78rem;
  font-weight: 850;
  transform: translate(-50%, -50%);
}

.structure-figure figcaption {
  color: var(--text-muted);
  font-size: 0.7rem;
  line-height: 1.4;
}

.structure-form {
  display: grid;
  gap: 9px;
}

.structure-answer-row {
  display: grid;
  gap: 5px;
}

.structure-form label {
  color: var(--text-muted);
  font-size: 0.74rem;
  font-weight: 760;
}

.structure-form select {
  width: 100%;
  min-height: 38px;
  padding: 7px 8px;
  border: 1px solid var(--line);
  border-radius: var(--radius-small);
  color: var(--text);
  background: var(--surface);
}

.structure-form button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 7px;
  min-height: 38px;
  padding: 7px 10px;
  border: 1px solid var(--mint);
  border-radius: var(--radius-small);
  color: #04251e;
  background: var(--mint);
  font-size: 0.76rem;
  font-weight: 780;
}

.structure-form button:disabled {
  cursor: not-allowed;
  border-color: var(--line);
  color: var(--text-muted);
  background: var(--surface-muted);
}

.structure-answer-feedback {
  margin: 0;
  font-size: 0.73rem;
  font-weight: 750;
}

.structure-answer-feedback.is-correct {
  color: var(--teal-strong);
}

.structure-answer-feedback.is-incorrect {
  color: #9a5a12;
}

.structure-hint {
  padding-top: 9px;
  border-top: 1px solid var(--line);
  color: var(--text-muted);
  font-size: 0.74rem;
  line-height: 1.5;
}

.structure-hint summary {
  cursor: pointer;
  color: var(--teal-strong);
  font-weight: 780;
}

.structure-hint p {
  margin: 7px 0 0;
}

.check-summary {
  display: flex;
  align-items: baseline;
  gap: 7px;
  margin-bottom: 10px;
}

.check-summary strong {
  font-size: 1.35rem;
}

.check-summary span {
  color: var(--text-muted);
  font-size: 0.78rem;
  font-weight: 720;
}

.check-list {
  display: grid;
  gap: 7px;
}

.check-item {
  padding: 9px 10px;
  border: 1px solid var(--line);
  border-left-width: 3px;
  border-radius: var(--radius-small);
  background: var(--surface);
}

.check-item.is-correct {
  border-left-color: var(--success);
}

.check-item.is-incorrect {
  border-left-color: var(--amber);
}

.check-item div {
  display: flex;
  justify-content: space-between;
  gap: 10px;
  min-width: 0;
}

.check-item span,
.check-item p {
  color: var(--text-muted);
  font-size: 0.72rem;
}

.check-item strong {
  max-width: 58%;
  font-size: 0.78rem;
  text-align: right;
  overflow-wrap: anywhere;
}

.check-item p {
  margin: 5px 0 0;
  line-height: 1.35;
}

.dock-heading {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
  min-width: 0;
  margin-bottom: 12px;
}

.dock-heading button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  min-height: 32px;
  padding: 6px 10px;
  border: 1px solid var(--line);
  border-radius: var(--radius-small);
  color: var(--text);
  background: var(--surface);
  font-size: 0.78rem;
  font-weight: 760;
}

.dock-heading button:disabled {
  cursor: not-allowed;
  color: var(--text-muted);
  background: var(--surface-muted);
}

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

.measurement-list li {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto 34px;
  gap: 8px;
  align-items: center;
  min-width: 0;
  padding: 8px 0;
  border-bottom: 1px solid var(--line);
  font-size: 0.8rem;
}

.measurement-list span {
  min-width: 0;
  overflow-wrap: anywhere;
  color: var(--text);
  font-weight: 760;
}

.measurement-list em {
  color: var(--text-muted);
  font-size: 0.74rem;
  font-style: normal;
  font-weight: 720;
}

.measurement-delete {
  display: grid;
  width: 32px;
  height: 32px;
  place-items: center;
  padding: 0;
  border: 1px solid var(--line);
  border-radius: var(--radius-small);
  color: var(--text-muted);
  background: var(--surface);
}

.measurement-delete:hover {
  border-color: rgba(212, 79, 106, 0.42);
  color: var(--rose);
  background: rgba(212, 79, 106, 0.07);
}

.measurement-delete .toolbar-icon {
  width: 15px;
  height: 15px;
}

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

.review-grid label {
  display: grid;
  gap: 5px;
  min-width: 0;
  color: var(--text-muted);
  font-size: 0.74rem;
  font-weight: 760;
}

.review-grid .wide {
  grid-column: 1 / -1;
}

.review-field {
  width: 100%;
  min-height: 34px;
  border: 1px solid var(--line);
  border-radius: var(--radius-small);
  color: var(--text);
  background: var(--surface);
  padding: 6px 8px;
  font-size: 0.82rem;
}

.review-output {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 8px;
  margin: 12px 0 0;
}

.review-output div {
  min-width: 0;
  padding: 9px;
  border: 1px solid var(--line);
  border-radius: var(--radius-small);
  background: var(--surface-muted);
}

.review-output dt {
  color: var(--text-muted);
  font-size: 0.7rem;
  font-weight: 760;
}

.review-output dd {
  margin: 4px 0 0;
  color: var(--text);
  font-size: 0.82rem;
  font-weight: 780;
  overflow-wrap: anywhere;
}

.detail-kicker {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  margin-bottom: 12px;
  color: var(--text-muted);
  font-size: 0.76rem;
  font-weight: 760;
  text-transform: uppercase;
}

.detail-headline {
  margin: 10px 0 0;
  color: var(--text-muted);
  line-height: 1.55;
}

.detail-section {
  margin-top: 22px;
}

.detail-section ul {
  display: grid;
  gap: 9px;
  margin: 12px 0 0;
  padding-left: 19px;
  color: var(--text-muted);
  line-height: 1.45;
}

.detail-section p {
  margin: 10px 0 0;
  color: var(--text-muted);
  line-height: 1.55;
}

.detail-stack {
  display: grid;
  gap: 12px;
}

.detail-card {
  padding: 14px;
}

.detail-card-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
  min-width: 0;
}

.detail-card-header span {
  color: var(--text-muted);
  font-size: 0.78rem;
  font-weight: 720;
}

.detail-card-header strong {
  font-size: 0.86rem;
  text-align: right;
}

.detail-card p {
  margin: 10px 0 0;
  color: var(--text-muted);
  font-size: 0.88rem;
  line-height: 1.5;
}

.empty-state {
  margin: 0;
  padding: 13px;
  border: 1px dashed var(--line-strong);
  border-radius: var(--radius);
  color: var(--text-muted);
  background: rgba(255, 255, 255, 0.64);
  font-size: 0.84rem;
  line-height: 1.45;
}

.empty-state.compact {
  padding: 10px;
  font-size: 0.8rem;
}

@media (max-width: 1180px) {
  .workspace-grid {
    grid-template-columns: minmax(0, 1fr) minmax(290px, 350px);
  }

  .workspace-grid.has-chat {
    grid-template-columns: minmax(260px, 310px) minmax(0, 1fr);
  }

  .workspace-grid.has-chat .detail-panel {
    grid-column: 1 / -1;
  }

  .workspace-grid.is-chat-closed .detail-panel {
    grid-column: auto;
  }

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

  .workspace-grid.has-chat .detail-panel {
    position: static;
    height: auto;
    overflow: visible;
  }

  .analysis-dock {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 840px) {
  .header-top {
    padding-inline: 16px;
  }

  .primary-nav {
    padding-inline: 16px;
  }

  .nav-link {
    flex: 1 1 0;
    text-align: center;
  }

  .records-page {
    padding: 18px 16px;
  }

  .records-intro,
  .records-grid {
    grid-template-columns: 1fr;
  }

  .workspace-grid {
    display: block;
    min-height: auto;
    padding: 14px;
  }

  .workspace-grid > * + * {
    margin-top: 14px;
  }

  .case-panel,
  .detail-panel,
  .viewer-panel {
    padding: 18px 16px;
  }

  .case-panel,
  .detail-panel {
    position: static;
    height: auto;
    border: 1px solid var(--line);
    overflow: visible;
  }

  .diagnostic-chat {
    min-height: 620px;
  }

  .chat-messages {
    max-height: 360px;
  }

  .viewer-panel {
    grid-template-rows: auto auto auto;
  }

  .echo-stage {
    min-height: 300px;
  }

  .echo-media,
  .echo-frame {
    width: auto;
    max-width: 100%;
    height: min(58vh, 520px);
  }

  .toolbar-row {
    align-items: stretch;
  }

  .tool-group,
  .zoom-control,
  .zoom-mode-control,
  .measure-control,
  .frame-control,
  .viewer-switches,
  .drawing-control {
    width: 100%;
  }

  .frame-control {
    flex-basis: 100%;
  }
}

@media (max-width: 540px) {
  .header-top {
    min-height: 58px;
    gap: 8px;
  }

  .brand-subtitle {
    display: none;
  }

  .viewer-context {
    align-items: flex-start;
    flex-direction: column;
    gap: 5px;
  }

  .chat-visibility-toggle {
    width: auto;
    min-height: 34px;
    padding: 6px 9px;
    font-size: 0.72rem;
  }

  .zoom-mode-control > span {
    width: 100%;
  }

  .zoom-mode-control button,
  .measure-control button {
    flex: 1 1 130px;
  }

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

  .segmented-control {
    width: 100%;
    grid-auto-flow: initial;
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .segment-button {
    padding-inline: 8px;
  }

  .viewer-switches {
    width: 100%;
  }

  .switch {
    flex: 1 1 120px;
    justify-content: center;
  }

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

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

  .zoom-control button span {
    display: none;
  }

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

  .frame-control input[type="range"],
  .frame-control > .frame-counter {
    grid-column: 1 / -1;
    width: 100%;
  }

  .drawing-control {
    justify-content: space-between;
  }

  .chat-composer {
    grid-template-columns: 1fr;
  }

  .chat-composer button {
    width: 100%;
  }

  .form-pair {
    grid-template-columns: 1fr;
  }

  .review-grid,
  .review-output {
    grid-template-columns: 1fr;
  }
}