:root {
  --ink: #172328;
  --muted: #5d6a6f;
  --line: #d7dfe0;
  --line-strong: #b9c6c8;
  --surface: #ffffff;
  --surface-soft: #f5f7f7;
  --surface-tint: #eef5f4;
  --header: #18383d;
  --teal: #176c70;
  --teal-dark: #105356;
  --orange: #c66332;
  --orange-soft: #fff1e9;
  --blue: #2e62a7;
  --blue-soft: #edf3fc;
  --green: #2f7555;
  --green-soft: #eaf5ef;
  --red: #a23b3b;
  --red-soft: #fff0f0;
  --shadow: 0 8px 24px rgba(23, 35, 40, 0.08);
  --radius: 6px;
}

* {
  box-sizing: border-box;
}

html {
  background: var(--surface-soft);
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--surface-soft);
  font-family: Inter, "Segoe UI", Helvetica, Arial, sans-serif;
  font-size: 15px;
  line-height: 1.45;
  letter-spacing: 0;
}

button,
input,
select {
  font: inherit;
  letter-spacing: 0;
}

button,
select,
label[for] {
  -webkit-tap-highlight-color: transparent;
}

button,
select,
input[type="file"] {
  cursor: pointer;
}

[hidden] {
  display: none !important;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.app-header {
  min-height: 66px;
  padding: 10px clamp(18px, 3vw, 48px);
  color: #ffffff;
  background: var(--header);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  border-bottom: 3px solid var(--orange);
}

.brand-lockup {
  display: flex;
  align-items: center;
  gap: 12px;
  min-width: 0;
  color: inherit;
  text-decoration: none;
}

.brand-lockup:hover,
.brand-lockup:focus-visible {
  color: inherit;
  text-decoration: none;
}

.brand-lockup:focus-visible,
.header-link:focus-visible {
  outline: 2px solid #ffffff;
  outline-offset: 4px;
}

.brand-logo {
  width: 42px;
  height: 46px;
  object-fit: contain;
  flex: 0 0 auto;
}

.brand-lockup strong,
.brand-lockup span {
  display: block;
  white-space: nowrap;
}

.brand-lockup strong {
  font: 700 20px/1.1 Georgia, "Times New Roman", serif;
}

.brand-lockup span {
  margin-top: 3px;
  color: #c9d7d8;
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
}

.header-status {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 14px;
  min-width: 0;
  font-size: 12px;
  font-weight: 700;
}

.header-link {
  color: #e1ebec;
  text-decoration: none;
  white-space: nowrap;
}

.header-link:hover {
  color: #ffffff;
  text-decoration: underline;
  text-underline-offset: 3px;
}

.environment-badge {
  padding: 5px 8px;
  color: #17363b;
  background: #dfeeee;
  border-radius: 4px;
  white-space: nowrap;
}

.connection-status {
  display: flex;
  align-items: center;
  gap: 7px;
  white-space: nowrap;
  color: #d9e2e3;
}

.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #d0a94d;
  box-shadow: 0 0 0 3px rgba(208, 169, 77, 0.18);
}

.connection-status.is-connected .status-dot {
  background: #68c990;
  box-shadow: 0 0 0 3px rgba(104, 201, 144, 0.18);
}

.workflow-nav {
  padding: 0 clamp(18px, 3vw, 48px);
  background: var(--surface);
  border-bottom: 1px solid var(--line);
  overflow-x: auto;
}

.workflow-nav ol {
  width: min(1140px, 100%);
  min-width: 760px;
  min-height: 58px;
  margin: 0 auto;
  padding: 0;
  list-style: none;
  display: grid;
  grid-template-columns: repeat(5, 1fr);
}

.workflow-nav li {
  position: relative;
  padding: 0 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  color: #728084;
  font-size: 12px;
  font-weight: 700;
  white-space: nowrap;
  border-bottom: 3px solid transparent;
}

.workflow-nav li + li::before {
  content: "";
  position: absolute;
  left: -12%;
  width: 24%;
  height: 1px;
  background: var(--line);
}

.workflow-nav li span {
  width: 24px;
  height: 24px;
  display: grid;
  place-items: center;
  border: 1px solid var(--line-strong);
  border-radius: 50%;
  background: var(--surface);
  font-size: 11px;
}

.workflow-nav li.is-current {
  color: var(--teal-dark);
  border-bottom-color: var(--orange);
}

.workflow-nav li.is-current span {
  color: #ffffff;
  background: var(--teal);
  border-color: var(--teal);
}

.workflow-nav li.is-complete {
  color: var(--green);
}

.workflow-nav li.is-complete span {
  color: #ffffff;
  background: var(--green);
  border-color: var(--green);
}

.app-shell {
  width: min(1540px, 100%);
  margin: 0 auto;
  padding: 24px clamp(16px, 2vw, 32px) 48px;
  display: grid;
  grid-template-columns: minmax(0, 1fr) 350px;
  gap: 20px;
  align-items: start;
}

.plan-actions {
  display: flex;
  align-items: center;
  gap: 8px;
}

.workspace-column {
  min-width: 0;
  background: var(--surface);
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
}

.workspace-column > section {
  padding: 22px;
}

.workspace-column > section + section {
  border-top: 1px solid var(--line);
}

.section-heading {
  margin-bottom: 16px;
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 18px;
}

.section-heading.compact {
  align-items: center;
}

.section-kicker {
  margin: 0 0 3px;
  color: var(--orange);
  font-size: 11px;
  line-height: 1.3;
  font-weight: 800;
  text-transform: uppercase;
}

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

h1,
h2 {
  margin: 0;
  letter-spacing: 0;
}

h1 {
  font: 700 25px/1.15 Georgia, "Times New Roman", serif;
}

h2 {
  font-size: 18px;
  line-height: 1.25;
}

h3 {
  margin: 0 0 9px;
  color: #3b4a4e;
  font-size: 11px;
  line-height: 1.3;
  text-transform: uppercase;
  letter-spacing: 0;
}

.structure-meta,
.section-state {
  color: var(--muted);
  font-size: 12px;
  font-weight: 700;
  text-align: right;
}

.section-state {
  padding: 4px 7px;
  border-radius: 4px;
  background: var(--surface-soft);
}

.section-state.needs-review {
  color: #7d421f;
  background: var(--orange-soft);
}

.section-state.is-approved {
  color: var(--green);
  background: var(--green-soft);
}

.viewer-toolbar {
  min-height: 50px;
  padding: 7px;
  display: flex;
  align-items: center;
  gap: 7px;
  background: #edf1f1;
  border: 1px solid var(--line);
  border-bottom: 0;
}

.toolbar-spacer {
  flex: 1 1 auto;
}

.button,
.icon-button {
  min-height: 38px;
  border: 1px solid transparent;
  border-radius: 5px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-weight: 750;
  line-height: 1;
  transition: background-color 130ms ease, border-color 130ms ease, color 130ms ease;
}

.button {
  padding: 0 14px;
  font-size: 13px;
  white-space: nowrap;
}

.icon-button {
  width: 38px;
  padding: 0;
  color: var(--ink);
  background: var(--surface);
  border-color: var(--line-strong);
}

.button svg,
.icon-button svg {
  width: 17px;
  height: 17px;
  flex: 0 0 auto;
}

.button.primary {
  color: #ffffff;
  background: var(--teal);
  border-color: var(--teal);
}

.button.primary:hover:not(:disabled),
.button.primary:focus-visible:not(:disabled) {
  background: var(--teal-dark);
  border-color: var(--teal-dark);
}

.button.secondary {
  color: #253438;
  background: var(--surface);
  border-color: var(--line-strong);
}

.button.secondary:hover,
.button.secondary:focus-visible,
.icon-button:hover,
.icon-button:focus-visible {
  border-color: var(--teal);
  color: var(--teal-dark);
}

.button:disabled {
  cursor: not-allowed;
  color: #778387;
  background: #e6ebeb;
  border-color: #d5dddd;
}

.icon-button[aria-pressed="true"] {
  color: #ffffff;
  background: var(--blue);
  border-color: var(--blue);
}

.pdb-loader {
  display: flex;
  align-items: center;
}

.pdb-loader input {
  width: 96px;
  border-radius: 5px 0 0 5px;
  text-transform: uppercase;
}

.pdb-loader .button {
  margin-left: -1px;
  border-radius: 0 5px 5px 0;
}

input,
select {
  min-height: 38px;
  padding: 7px 10px;
  color: var(--ink);
  background: var(--surface);
  border: 1px solid var(--line-strong);
  border-radius: 5px;
  outline: none;
}

input:focus,
select:focus {
  border-color: var(--teal);
  box-shadow: 0 0 0 3px rgba(23, 108, 112, 0.12);
}

.viewer-toolbar > select {
  width: 148px;
}

.viewer-frame {
  position: relative;
  width: 100%;
  height: clamp(400px, 54vh, 570px);
  min-height: 400px;
  overflow: hidden;
  background: #f9fbfb;
  border: 1px solid var(--line);
}

#moleculeViewport {
  position: absolute;
  inset: 0;
}

#moleculeViewport canvas {
  display: block;
}

.viewer-empty,
.viewer-loading {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 8px;
  color: var(--muted);
  background: #f9fbfb;
  pointer-events: none;
  text-align: center;
}

.viewer-empty svg {
  width: 54px;
  height: 54px;
  color: var(--teal);
  stroke-width: 1.4;
}

.viewer-empty strong {
  color: var(--ink);
  font-size: 16px;
}

.viewer-empty span {
  font-size: 12px;
}

.viewer-loading {
  background: rgba(249, 251, 251, 0.88);
  font-size: 13px;
  font-weight: 700;
}

.spinner {
  width: 24px;
  height: 24px;
  border: 3px solid #cfdadb;
  border-top-color: var(--teal);
  border-radius: 50%;
  animation: spin 800ms linear infinite;
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

.structure-summary {
  padding: 10px 14px;
  background: #f6f8f8;
  border: 1px solid var(--line);
  border-top: 0;
}

.structure-summary dl {
  margin: 0;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.structure-summary dl div {
  min-width: 0;
  padding: 0 12px;
  border-right: 1px solid var(--line);
}

.structure-summary dl div:first-child {
  padding-left: 0;
}

.structure-summary dl div:last-child {
  padding-right: 0;
  border-right: 0;
}

.structure-summary dt {
  color: var(--muted);
  font-size: 10px;
  font-weight: 800;
  text-transform: uppercase;
}

.structure-summary dd {
  margin: 2px 0 0;
  font-size: 14px;
  font-weight: 750;
}

.detection-banner {
  min-height: 74px;
  margin-top: 14px;
  padding: 12px 14px;
  display: grid;
  grid-template-columns: 38px minmax(180px, 1fr) minmax(220px, 300px) auto;
  align-items: center;
  gap: 12px;
  background: var(--orange-soft);
  border-left: 4px solid var(--orange);
}

.detection-banner.no-match {
  background: var(--blue-soft);
  border-left-color: var(--blue);
}

.detection-icon {
  width: 34px;
  height: 34px;
  display: grid;
  place-items: center;
  color: #ffffff;
  background: var(--orange);
  border-radius: 50%;
}

.detection-banner.no-match .detection-icon {
  background: var(--blue);
}

.detection-icon svg {
  width: 18px;
  height: 18px;
}

.detection-copy {
  min-width: 0;
}

.detection-copy strong,
.detection-copy span {
  display: block;
}

.detection-copy strong {
  font-size: 14px;
}

.detection-copy span {
  margin-top: 2px;
  color: #6c584d;
  font-size: 12px;
}

.detection-select label,
.form-grid label > span,
.approval-band label > span,
.reaction-definition label > span {
  display: block;
  margin-bottom: 5px;
  color: #445358;
  font-size: 11px;
  font-weight: 800;
  line-height: 1.3;
}

.detection-select select {
  width: 100%;
}

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

.form-grid > label {
  min-width: 0;
}

.form-grid input,
.form-grid select {
  width: 100%;
}

.form-grid label > span b {
  margin-left: 5px;
  padding: 2px 5px;
  color: #7d421f;
  background: var(--orange-soft);
  border-radius: 3px;
  font-size: 9px;
  text-transform: uppercase;
}

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

.protocol-field {
  min-height: 64px;
  padding: 10px 12px;
  display: grid;
  grid-template-columns: 36px minmax(0, 1fr) 20px;
  align-items: center;
  gap: 11px;
  background: var(--surface-tint);
  border: 1px solid #bfd3d1;
  border-radius: 5px;
}

.protocol-icon {
  width: 34px;
  height: 34px;
  display: grid;
  place-items: center;
  color: #ffffff;
  background: var(--teal);
  border-radius: 5px;
}

.protocol-icon svg,
.protocol-lock {
  width: 17px;
  height: 17px;
}

.protocol-field span,
.protocol-field strong,
.protocol-field small {
  display: block;
}

.protocol-field span {
  color: var(--muted);
  font-size: 10px;
  font-weight: 800;
  text-transform: uppercase;
}

.protocol-field strong {
  margin-top: 1px;
  font-size: 14px;
}

.protocol-field small {
  margin-top: 2px;
  color: var(--muted);
  font-size: 10px;
}

.protocol-lock {
  color: var(--teal);
}

.cutoff-field {
  min-width: 0;
  margin: 0;
  padding: 0;
  border: 0;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
}

.cutoff-field legend {
  width: 100%;
  margin-bottom: 5px;
  color: #445358;
  font-size: 11px;
  font-weight: 800;
}

.cutoff-field label > span {
  display: none;
}

.number-unit {
  display: grid;
  grid-template-columns: 1fr 28px;
  align-items: center;
}

.number-unit input {
  min-width: 0;
  border-radius: 5px 0 0 5px;
}

.number-unit span {
  min-height: 38px;
  display: grid;
  place-items: center;
  color: var(--muted);
  background: var(--surface-soft);
  border: 1px solid var(--line-strong);
  border-left: 0;
  border-radius: 0 5px 5px 0;
  font-size: 12px;
  font-weight: 800;
}

.form-actions {
  min-height: 56px;
  margin-top: 18px;
  padding-top: 14px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  border-top: 1px solid var(--line);
}

.form-actions > span {
  color: var(--muted);
  font-size: 12px;
}

.reaction-definition {
  padding: 14px;
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: end;
  gap: 12px;
  background: var(--orange-soft);
  border-left: 4px solid var(--orange);
}

.reaction-definition input {
  width: 100%;
}

.region-controls {
  min-height: 48px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.switch-control {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  color: #344348;
  font-size: 13px;
  font-weight: 700;
  cursor: pointer;
}

.switch-control input {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}

.switch-track {
  position: relative;
  width: 38px;
  height: 22px;
  flex: 0 0 auto;
  background: #aab6b8;
  border-radius: 11px;
  transition: background-color 130ms ease;
}

.switch-track::after {
  content: "";
  position: absolute;
  top: 3px;
  left: 3px;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: #ffffff;
  transition: transform 130ms ease;
}

.switch-control input:checked + .switch-track {
  background: var(--teal);
}

.switch-control input:checked + .switch-track::after {
  transform: translateX(16px);
}

.switch-control input:focus-visible + .switch-track {
  box-shadow: 0 0 0 3px rgba(23, 108, 112, 0.18);
}

.region-total {
  color: var(--muted);
  font-size: 12px;
  font-weight: 700;
}

.candidate-table-wrap {
  width: 100%;
  overflow-x: auto;
  border: 1px solid var(--line);
}

.candidate-table {
  width: 100%;
  min-width: 790px;
  border-collapse: collapse;
  table-layout: fixed;
}

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

.candidate-table th {
  color: #48575b;
  background: #edf1f1;
  font-size: 10px;
  text-transform: uppercase;
}

.candidate-table th:nth-child(1),
.candidate-table td:nth-child(1) {
  width: 44px;
  text-align: center;
}

.candidate-table th:nth-child(2),
.candidate-table td:nth-child(2) {
  width: 118px;
}

.candidate-table th:nth-child(3),
.candidate-table td:nth-child(3) {
  width: 82px;
}

.candidate-table th:nth-child(4),
.candidate-table td:nth-child(4) {
  width: 70px;
}

.candidate-table th:nth-child(6),
.candidate-table td:nth-child(6) {
  width: 64px;
  text-align: right;
}

.candidate-table tbody tr:last-child td {
  border-bottom: 0;
}

.candidate-table tbody tr.is-selected {
  background: var(--surface-tint);
}

.candidate-table input[type="checkbox"] {
  width: 17px;
  min-height: 17px;
  accent-color: var(--teal);
}

.residue-name {
  display: block;
  font-weight: 800;
}

.residue-tag {
  display: inline-block;
  margin-top: 3px;
  padding: 2px 5px;
  color: var(--blue);
  background: var(--blue-soft);
  border-radius: 3px;
  font-size: 9px;
  font-weight: 800;
  text-transform: uppercase;
}

.residue-tag.required {
  color: #7d421f;
  background: var(--orange-soft);
}

.candidate-evidence {
  color: var(--muted);
  font-size: 11px;
  line-height: 1.35;
}

.score-meter {
  width: 42px;
  height: 5px;
  margin-top: 5px;
  background: #dce3e4;
  border-radius: 3px;
  overflow: hidden;
}

.score-meter span {
  display: block;
  height: 100%;
  background: var(--blue);
}

.approval-band {
  margin-top: 14px;
  padding: 14px;
  display: grid;
  grid-template-columns: 110px 120px minmax(180px, 1fr) auto;
  align-items: end;
  gap: 12px;
  background: var(--surface-soft);
  border: 1px solid var(--line);
}

.approval-band input,
.approval-band select {
  width: 100%;
}

.plan-summary {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  border: 1px solid var(--line);
}

.plan-summary dl {
  min-width: 0;
  margin: 0;
  padding: 13px;
  border-right: 1px solid var(--line);
}

.plan-summary dl:last-child {
  border-right: 0;
}

.plan-summary dt {
  color: var(--muted);
  font-size: 10px;
  font-weight: 800;
  text-transform: uppercase;
}

.plan-summary dd {
  margin: 4px 0 0;
  font-weight: 750;
  overflow-wrap: anywhere;
}

.lead-panel {
  position: sticky;
  top: 18px;
  max-height: calc(100vh - 36px);
  overflow-y: auto;
  background: var(--surface);
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
}

.lead-panel > div {
  padding: 16px;
}

.lead-panel > div + div {
  border-top: 1px solid var(--line);
}

.lead-heading {
  display: flex;
  align-items: center;
  gap: 11px;
}

.agent-avatar {
  width: 40px;
  height: 40px;
  display: grid;
  place-items: center;
  flex: 0 0 auto;
  color: #ffffff;
  background: var(--blue);
  border-radius: 50%;
}

.agent-avatar svg {
  width: 20px;
  height: 20px;
}

.lead-message {
  background: #f7f9f9;
}

.lead-message p {
  margin: 0;
  color: #36464a;
  font-size: 13px;
  line-height: 1.55;
}

.lead-message.is-error {
  background: var(--red-soft);
  border-left: 4px solid var(--red);
}

.lead-questions ul,
.specialist-status ul {
  margin: 0;
  padding: 0;
  list-style: none;
}

.lead-questions li {
  position: relative;
  padding-left: 15px;
  color: #4a595d;
  font-size: 12px;
}

.lead-questions li + li {
  margin-top: 8px;
}

.lead-questions li::before {
  content: "";
  position: absolute;
  top: 7px;
  left: 1px;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--orange);
}

.protected-decisions dl {
  margin: 0;
}

.protected-decisions dl div {
  min-height: 38px;
  padding: 6px 0;
  display: grid;
  grid-template-columns: 92px minmax(0, 1fr);
  align-items: center;
  gap: 10px;
  border-bottom: 1px solid #e6ebeb;
}

.protected-decisions dl div:last-child {
  border-bottom: 0;
}

.protected-decisions dt {
  color: var(--muted);
  font-size: 11px;
}

.protected-decisions dd {
  margin: 0;
  text-align: right;
  font-size: 11px;
  font-weight: 750;
  overflow-wrap: anywhere;
}

.specialist-status li {
  min-height: 30px;
  padding: 5px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  color: #4d5b5f;
  font-size: 11px;
  border-bottom: 1px solid #e8eded;
}

.specialist-status li:last-child {
  border-bottom: 0;
}

.status-pill {
  padding: 2px 5px;
  color: var(--green);
  background: var(--green-soft);
  border-radius: 3px;
  font-size: 9px;
  font-weight: 800;
  text-transform: uppercase;
}

.status-pill.blocked {
  color: var(--red);
  background: var(--red-soft);
}

.status-pill.waiting,
.status-pill.needs-user-input,
.status-pill.awaiting-user-approval {
  color: #7d421f;
  background: var(--orange-soft);
}

.study-record code {
  display: block;
  color: #526166;
  font-size: 10px;
  overflow-wrap: anywhere;
}

.launch-policy {
  display: flex;
  align-items: center;
  gap: 9px;
  color: #5c676b;
  background: #edf1f1;
  font-size: 11px;
  font-weight: 700;
}

.launch-policy svg {
  width: 17px;
  height: 17px;
  flex: 0 0 auto;
  color: var(--teal);
}

.toast {
  position: fixed;
  right: 20px;
  bottom: 20px;
  z-index: 20;
  width: min(380px, calc(100vw - 40px));
  padding: 12px 14px;
  color: #ffffff;
  background: #27373b;
  border-left: 4px solid #68c990;
  border-radius: 5px;
  box-shadow: 0 12px 30px rgba(10, 20, 23, 0.24);
  font-size: 13px;
}

.toast.is-error {
  border-left-color: #ef8c8c;
}

@media (max-width: 1120px) {
  .app-shell {
    grid-template-columns: minmax(0, 1fr) 310px;
  }

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

  .wide-field {
    grid-column: span 1;
  }

  .detection-banner {
    grid-template-columns: 38px minmax(160px, 1fr) minmax(190px, 260px);
  }

  .detection-banner .button {
    grid-column: 2 / -1;
    justify-self: end;
  }

  .approval-band {
    grid-template-columns: 100px 110px minmax(170px, 1fr);
  }

  .approval-band .button {
    grid-column: 1 / -1;
    justify-self: end;
  }
}

@media (max-width: 880px) {
  .app-shell {
    grid-template-columns: 1fr;
  }

  .lead-panel {
    position: static;
    max-height: none;
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .lead-panel > div + div {
    border-top: 1px solid var(--line);
  }

  .lead-panel > div:nth-child(even) {
    border-left: 1px solid var(--line);
  }

  .viewer-frame {
    height: 470px;
  }
}

@media (max-width: 640px) {
  .header-link {
    display: none;
  }

  .plan-actions {
    width: 100%;
  }

  .plan-actions .button {
    flex: 1;
  }

  .app-header {
    min-height: 62px;
    padding: 9px 14px;
  }

  .brand-logo {
    width: 35px;
    height: 39px;
  }

  .brand-lockup strong {
    font-size: 17px;
  }

  .brand-lockup span {
    font-size: 10px;
  }

  .environment-badge {
    display: none;
  }

  .workflow-nav {
    padding: 0;
  }

  .workflow-nav ol {
    min-width: 630px;
  }

  .app-shell {
    padding: 12px 10px 32px;
  }

  .workspace-column > section {
    padding: 16px 12px;
  }

  .section-heading {
    align-items: flex-start;
  }

  h1 {
    font-size: 22px;
  }

  .viewer-toolbar {
    flex-wrap: wrap;
  }

  .viewer-toolbar .toolbar-spacer {
    display: none;
  }

  .viewer-toolbar > select {
    flex: 1 1 140px;
  }

  .viewer-frame {
    height: 390px;
    min-height: 390px;
  }

  .structure-summary dl {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    row-gap: 10px;
  }

  .structure-summary dl div:nth-child(2) {
    border-right: 0;
  }

  .detection-banner {
    grid-template-columns: 36px minmax(0, 1fr);
  }

  .detection-select,
  .detection-banner .button {
    grid-column: 1 / -1;
    width: 100%;
  }

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

  .form-actions {
    align-items: stretch;
    flex-direction: column;
  }

  .form-actions .button {
    width: 100%;
  }

  .reaction-definition {
    grid-template-columns: 1fr;
  }

  .region-controls {
    align-items: flex-start;
    flex-direction: column;
    padding: 9px 0;
  }

  .approval-band {
    grid-template-columns: 1fr 1fr;
  }

  .approval-band label:nth-child(3),
  .approval-band .button {
    grid-column: 1 / -1;
    width: 100%;
  }

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

  .plan-summary dl:nth-child(2) {
    border-right: 0;
  }

  .plan-summary dl:nth-child(-n + 2) {
    border-bottom: 1px solid var(--line);
  }

  .lead-panel {
    grid-template-columns: 1fr;
  }

  .lead-panel > div:nth-child(even) {
    border-left: 0;
  }
}