:root {
  color-scheme: light;
  --bg: #f4f6f8;
  --surface: #ffffff;
  --surface-soft: #f8fafb;
  --border: #d8dee5;
  --border-strong: #bdc7d2;
  --text: #172033;
  --muted: #667487;
  --blue: #286fae;
  --blue-soft: #eaf2f8;
  --green: #18794e;
  --green-soft: #eaf6ef;
  --amber: #9a6700;
  --amber-soft: #fff6dd;
  --red: #b42318;
  --red-soft: #fff0ee;
  --ink: #243247;
  --shadow: 0 1px 2px rgba(17, 32, 51, 0.06), 0 6px 20px rgba(17, 32, 51, 0.04);
  --sidebar: 232px;
  font-family: Inter, "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;
  font-synthesis: none;
  letter-spacing: 0;
}

* { box-sizing: border-box; }
html { min-width: 320px; background: var(--bg); }
body { margin: 0; min-height: 100vh; color: var(--text); background: var(--bg); }
button, input, select, textarea { font: inherit; letter-spacing: 0; }
button { cursor: pointer; }
button:focus-visible, input:focus-visible, select:focus-visible, textarea:focus-visible { outline: 3px solid rgba(40, 111, 174, 0.25); outline-offset: 1px; }
input, select, textarea { width: 100%; color: var(--text); border: 1px solid var(--border); border-radius: 5px; background: var(--surface); }
input, select { min-height: 38px; padding: 7px 10px; }
textarea { padding: 10px; resize: vertical; line-height: 1.5; }
label { display: grid; gap: 6px; color: var(--muted); font-size: 12px; font-weight: 650; }
h1, h2, h3, p { margin-top: 0; }
h1 { margin-bottom: 0; font-size: 20px; line-height: 1.2; }
h2 { margin-bottom: 0; font-size: 18px; line-height: 1.3; }
h3 { font-size: 14px; }
svg { width: 18px; height: 18px; stroke-width: 1.8; flex: 0 0 auto; }

.app-shell { display: grid; grid-template-columns: var(--sidebar) minmax(0, 1fr); min-height: 100vh; }
.sidebar { position: sticky; top: 0; height: 100vh; display: grid; grid-template-rows: auto 1fr auto; gap: 24px; padding: 22px 14px 16px; background: #172033; color: #f4f8fb; z-index: 20; }
.brand-block { display: flex; align-items: center; gap: 12px; padding: 0 8px; }
.brand-block strong { display: block; font-size: 19px; white-space: nowrap; }
.brand-block small { display: block; margin-top: 3px; color: #aebdcb; font-size: 11px; white-space: nowrap; }
.brand-mark { width: 32px; height: 32px; position: relative; border: 1px solid #58728c; border-radius: 5px; background: #213149; overflow: hidden; }
.brand-mark span { position: absolute; bottom: 7px; width: 4px; background: #62c58b; }
.brand-mark span:nth-child(1) { left: 7px; height: 10px; }
.brand-mark span:nth-child(2) { left: 14px; height: 18px; }
.brand-mark span:nth-child(3) { left: 21px; height: 14px; }
.nav-list { display: grid; align-content: start; gap: 4px; }
.nav-item { height: 42px; display: flex; align-items: center; gap: 11px; padding: 0 12px; border: 0; border-radius: 5px; color: #b9c7d4; background: transparent; text-align: left; }
.nav-item:hover { color: #fff; background: #213149; }
.nav-item.is-active { color: #fff; background: #2b405b; box-shadow: inset 3px 0 0 #62c58b; }
.sidebar-foot { display: grid; gap: 10px; }
.local-only { display: flex; gap: 8px; align-items: center; padding: 9px 10px; color: #b9d8c4; font-size: 11px; border: 1px solid #38516b; border-radius: 5px; }
.sidebar .icon-text-button { color: #c6d1dc; border-color: #38516b; background: transparent; }

.main-area { min-width: 0; }
.topbar { position: sticky; top: 0; z-index: 15; min-height: 72px; display: flex; align-items: center; gap: 18px; padding: 12px clamp(18px, 3vw, 36px); border-bottom: 1px solid var(--border); background: rgba(244, 246, 248, 0.96); backdrop-filter: blur(12px); }
.topbar-context { min-width: 150px; }
.topbar-actions { margin-left: auto; display: flex; align-items: center; gap: 8px; }
.sync-state { display: flex; align-items: center; gap: 7px; margin-right: 4px; color: var(--muted); font-size: 12px; }
.status-dot { width: 8px; height: 8px; border-radius: 50%; background: var(--green); box-shadow: 0 0 0 3px rgba(24, 121, 78, 0.12); }
.content-area { padding: 22px clamp(16px, 3vw, 36px) 48px; }
.page { display: none; }
.page.is-active { display: block; }
.eyebrow { display: block; margin-bottom: 4px; color: var(--blue); font-size: 11px; line-height: 1.2; font-weight: 750; text-transform: uppercase; }
.muted { color: var(--muted); font-size: 12px; }

.icon-button, .icon-text-button, .command-button, .secondary-button { min-height: 38px; display: inline-flex; align-items: center; justify-content: center; gap: 8px; border-radius: 5px; }
.icon-button { width: 38px; padding: 0; border: 1px solid var(--border); background: var(--surface); color: var(--ink); }
.icon-button:hover { border-color: var(--border-strong); background: var(--surface-soft); }
.icon-text-button { padding: 0 11px; border: 1px solid var(--border); color: var(--ink); background: var(--surface); }
.command-button { padding: 0 14px; border: 1px solid #1f6199; color: #fff; background: var(--blue); font-weight: 700; }
.command-button:hover { background: #205f95; }
.secondary-button { padding: 0 14px; border: 1px solid var(--border); color: var(--ink); background: var(--surface); }
.full-width { width: 100%; }
.mobile-menu { display: none; }

.status-strip { display: grid; grid-template-columns: 150px 120px minmax(160px, 1fr) 130px minmax(110px, auto) auto auto; align-items: end; gap: 10px; padding: 12px; margin-bottom: 16px; border: 1px solid var(--border); background: var(--surface); border-radius: 6px; box-shadow: var(--shadow); }
.status-summary { min-height: 38px; display: grid; align-content: center; gap: 4px; padding: 0 8px; border-left: 1px solid var(--border); }
.status-summary span { color: var(--muted); font-size: 11px; }
.status-summary strong { font-size: 12px; }
.state-badge, .count-badge { display: inline-flex; align-items: center; justify-content: center; height: 28px; padding: 0 9px; border-radius: 999px; font-size: 11px; font-weight: 800; }
.state-badge { color: var(--amber); background: var(--amber-soft); border: 1px solid #efd592; }
.state-badge[data-state="CURRENT"] { color: var(--green); background: var(--green-soft); border-color: #acd5bd; }
.state-badge[data-state="CONFLICT"], .state-badge[data-state="STALE"] { color: var(--red); background: var(--red-soft); border-color: #efb7b0; }
.toggle-field { display: flex; align-items: center; gap: 8px; min-height: 38px; padding: 0 4px; color: var(--text); }
.toggle-field input { width: 17px; height: 17px; min-height: auto; }

.workspace-grid { display: grid; grid-template-columns: minmax(0, 1fr) 320px; gap: 16px; align-items: start; }
.primary-panel, .secondary-panel, .decision-card, .risk-panel { border: 1px solid var(--border); border-radius: 6px; background: var(--surface); box-shadow: var(--shadow); }
.primary-panel, .secondary-panel { padding: 18px; }
.panel-heading { display: flex; justify-content: space-between; gap: 12px; align-items: start; margin-bottom: 18px; }
.heading-actions { display: flex; gap: 8px; }
.panel-heading.compact { margin-bottom: 12px; }
.decision-rail { display: grid; gap: 16px; }
.decision-card, .risk-panel { padding: 16px; }
.decision-card > .panel-heading > svg { color: var(--amber); }
.decision-card.is-executable > .panel-heading > svg { color: var(--green); }
.position-limit { display: flex; align-items: baseline; justify-content: space-between; margin: 14px 0; padding: 12px; border: 1px solid var(--border); background: var(--surface-soft); }
.position-limit span { color: var(--muted); font-size: 12px; }
.position-limit strong { font-size: 24px; }
.reason-list { min-height: 56px; margin: 0 0 16px; padding-left: 18px; color: var(--muted); font-size: 12px; line-height: 1.55; }
.count-badge { min-width: 28px; color: var(--red); background: var(--red-soft); }
.risk-list { display: grid; gap: 8px; }
.risk-item { display: grid; grid-template-columns: 30px 1fr; gap: 8px; align-items: start; padding: 9px; border-left: 3px solid var(--amber); background: var(--amber-soft); font-size: 12px; line-height: 1.45; }
.risk-item[data-level="P0"] { border-color: var(--red); background: var(--red-soft); }
.risk-item strong { color: var(--red); }
.empty-state { padding: 20px 10px; color: var(--muted); text-align: center; font-size: 12px; }

.segmented-field { display: grid; grid-template-columns: 92px minmax(0, 1fr); align-items: center; gap: 12px; margin-bottom: 14px; }
.field-label { color: var(--muted); font-size: 12px; font-weight: 700; }
.segment-group { display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); border: 1px solid var(--border); border-radius: 5px; overflow: hidden; }
.node-segments { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.segment-button { min-height: 36px; padding: 5px 8px; border: 0; border-right: 1px solid var(--border); color: var(--muted); background: var(--surface); font-size: 12px; }
.segment-button:last-child { border-right: 0; }
.segment-button.is-active { color: var(--blue); background: var(--blue-soft); font-weight: 750; }
.evidence-grid, .form-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; }
.form-grid.four-columns { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.span-2 { grid-column: span 2; }
.score-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 10px; margin-top: 14px; }
.score-grid label { position: relative; padding: 10px; border: 1px solid var(--border); background: var(--surface-soft); }
.score-grid input { min-height: 24px; padding: 0; border: 0; background: transparent; accent-color: var(--blue); }
.score-grid output { position: absolute; right: 10px; top: 8px; color: var(--text); }
#pulseChart { display: block; width: 100%; height: 145px; margin-top: 14px; border: 1px solid var(--border); background: #fbfcfd; }

.page-grid { display: grid; gap: 16px; }
.page-grid.two-column { grid-template-columns: minmax(0, 1.35fr) minmax(300px, 0.65fr); align-items: start; }
.data-list, .candidate-list, .author-list, .history-list { display: grid; gap: 8px; margin-top: 14px; }
.data-row, .candidate-item, .author-item, .history-item { display: grid; align-items: center; gap: 10px; padding: 10px 12px; border: 1px solid var(--border); border-radius: 5px; background: var(--surface); }
.data-row { grid-template-columns: minmax(100px, 0.25fr) minmax(0, 1fr) auto; }
.candidate-item { grid-template-columns: minmax(100px, 1fr) minmax(0, 1fr) auto; }
.candidate-item strong, .data-row strong { overflow-wrap: anywhere; }
.tag-list { display: flex; flex-wrap: wrap; gap: 5px; }
.tag { padding: 2px 6px; color: var(--blue); background: var(--blue-soft); border: 1px solid #c8dce9; border-radius: 3px; font-size: 10px; }
.trace-line { display: block; margin-top: 6px; color: var(--muted); font-size: 10px; overflow-wrap: anywhere; }
.candidate-meta-grid { display: grid; grid-template-columns: 1fr 1.2fr; gap: 10px; margin-bottom: 12px; }
.candidate-meta-grid .toggle-field { grid-column: 1 / -1; }
.danger-icon { color: var(--red); }

.table-wrap { overflow-x: auto; border: 1px solid var(--border); }
.data-table { width: 100%; min-width: 1680px; border-collapse: collapse; }
.data-table th, .data-table td { padding: 9px; border-bottom: 1px solid var(--border); text-align: left; vertical-align: middle; }
.data-table th { color: var(--muted); background: var(--surface-soft); font-size: 11px; }
.data-table td input, .data-table td select { min-height: 34px; }
.data-table tr:last-child td { border-bottom: 0; }
.plan-footer { display: grid; grid-template-columns: 1fr 190px; align-items: end; gap: 12px; margin-top: 14px; }
.checkbox-cluster, .drift-control { display: grid; gap: 6px; min-width: 110px; }
.checkbox-cluster label, .drift-control label { display: flex; align-items: center; gap: 6px; color: var(--text); white-space: nowrap; }
.checkbox-cluster input, .drift-control input[type="checkbox"] { width: 16px; height: 16px; min-height: auto; }

.review-toolbar { display: flex; justify-content: space-between; align-items: center; gap: 16px; margin-bottom: 14px; }
.review-toolbar > div:last-child { display: flex; gap: 8px; }
.review-output { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; }
.review-section { min-height: 150px; padding: 16px; border: 1px solid var(--border); background: var(--surface); border-radius: 6px; box-shadow: var(--shadow); }
.review-section h3 { display: flex; align-items: center; gap: 8px; margin-bottom: 12px; color: var(--blue); }
.review-section dl { display: grid; grid-template-columns: 88px 1fr; gap: 7px 10px; margin: 0; font-size: 12px; }
.review-section dt { color: var(--muted); }
.review-section dd { margin: 0; overflow-wrap: anywhere; }
.review-section.action-section { border-left: 4px solid var(--blue); }
.review-section.unknown-section { border-left: 4px solid var(--amber); }
.review-disclaimer { grid-column: 1 / -1; padding: 12px 16px; border: 1px solid #c9d5df; background: var(--surface-soft); color: var(--muted); font-size: 12px; }

.mode-warning, .approval-note { display: flex; align-items: start; gap: 11px; padding: 12px 14px; margin-bottom: 14px; border-left: 4px solid var(--red); background: var(--red-soft); }
.mode-warning div { display: grid; gap: 3px; }
.mode-warning span, .approval-note span { color: var(--muted); font-size: 12px; line-height: 1.5; }
.author-item { grid-template-columns: repeat(2, minmax(0, 1fr)); align-items: end; }
.author-item .author-link { grid-column: span 2; }
.author-validity { display: flex; align-items: center; justify-content: flex-end; gap: 8px; }
.author-item input[type="checkbox"] { width: 17px; height: 17px; min-height: auto; }
.sample-count { display: flex; align-items: baseline; justify-content: space-between; margin-top: 14px; padding: 12px; background: var(--surface-soft); border: 1px solid var(--border); }
.sample-count span { color: var(--muted); }
.sample-count strong { margin-left: 8px; color: var(--text); font-size: 20px; }
.history-item { grid-template-columns: 130px 120px 1fr auto; }
.history-item.is-archived { opacity: 0.7; }
.history-actions { display: flex; gap: 6px; }
.outcome-fields { grid-column: 1 / -1; display: grid; grid-template-columns: 180px 1fr 1fr; gap: 10px; padding-top: 10px; border-top: 1px solid var(--border); }
.compliance-block { grid-column: 1 / -1; padding: 10px 12px; color: var(--red); background: var(--red-soft); border-left: 3px solid var(--red); font-size: 12px; }
.external-history-item { border: 1px solid var(--border); border-radius: 5px; background: var(--surface); }
.external-history-item summary { min-height: 48px; display: grid; grid-template-columns: 130px 100px 1fr; align-items: center; gap: 10px; padding: 10px 12px; cursor: pointer; }
.external-history-content { display: grid; gap: 10px; padding: 12px; border-top: 1px solid var(--border); }
.external-history-content dl { display: grid; grid-template-columns: 90px 1fr; gap: 7px 10px; margin: 0; font-size: 12px; }
.external-history-content dt { color: var(--muted); }
.external-history-content dd { margin: 0; overflow-wrap: anywhere; }
.external-author-trace { display: grid; grid-template-columns: 120px 1fr 1fr; gap: 10px; padding: 9px; background: var(--surface-soft); font-size: 11px; }
.external-author-trace span { overflow-wrap: anywhere; }
.external-history-actions { display: flex; align-items: center; justify-content: space-between; gap: 12px; color: var(--muted); font-size: 11px; }

dialog { max-height: calc(100vh - 32px); padding: 0; overflow-y: auto; border: 1px solid var(--border-strong); border-radius: 7px; color: var(--text); background: var(--surface); box-shadow: 0 24px 80px rgba(18, 30, 47, 0.2); }
dialog::backdrop { background: rgba(13, 23, 35, 0.5); backdrop-filter: blur(2px); }
.settings-dialog { width: min(820px, calc(100vw - 32px)); }
.compact-dialog { width: min(520px, calc(100vw - 32px)); }
dialog form { padding: 18px; }
.dialog-heading, .dialog-actions { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.dialog-heading { margin-bottom: 14px; }
.dialog-actions { justify-content: flex-end; margin-top: 18px; }
fieldset { margin: 14px 0 0; padding: 14px; border: 1px solid var(--border); }
.settings-extra { margin-top: 12px; }
legend { padding: 0 6px; font-size: 12px; font-weight: 750; color: var(--blue); }
.approval-note { border-color: var(--amber); background: var(--amber-soft); }

.toast-region { position: fixed; right: 20px; bottom: 20px; z-index: 100; display: grid; gap: 8px; }
.toast { max-width: 360px; padding: 11px 14px; color: #fff; background: #243247; border-radius: 5px; box-shadow: var(--shadow); font-size: 12px; animation: toast-in 180ms ease-out; }
.toast.is-error { background: var(--red); }
.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; }

@keyframes toast-in { from { transform: translateY(8px); opacity: 0; } to { transform: translateY(0); opacity: 1; } }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 0.01ms !important; scroll-behavior: auto !important; }
}

@media (max-width: 1120px) {
  :root { --sidebar: 76px; }
  .brand-block { justify-content: center; }
  .brand-block > div:last-child, .nav-item span, .sidebar-foot span, .sidebar .icon-text-button span { display: none; }
  .nav-item { justify-content: center; padding: 0; }
  .local-only { justify-content: center; }
  .sidebar .icon-text-button { padding: 0; }
  .workspace-grid { grid-template-columns: minmax(0, 1fr) 290px; }
}

@media (max-width: 860px) {
  .app-shell { display: block; }
  .sidebar { position: fixed; left: -250px; width: 232px; transition: left 180ms ease; }
  .sidebar.is-open { left: 0; }
  .brand-block { justify-content: flex-start; }
  .brand-block > div:last-child, .nav-item span, .sidebar-foot span, .sidebar .icon-text-button span { display: block; }
  .nav-item { justify-content: flex-start; padding: 0 12px; }
  .mobile-menu { display: inline-flex; }
  .sync-state { display: none; }
  .workspace-grid, .page-grid.two-column { grid-template-columns: 1fr; }
  .decision-rail { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .status-strip { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .review-output { grid-template-columns: 1fr; }
  .form-grid.four-columns { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 600px) {
  .topbar { min-height: 64px; padding: 10px 12px; }
  .topbar-context .eyebrow { display: none; }
  .topbar-actions .icon-button { display: none; }
  .topbar-actions .command-button span { display: none; }
  .topbar-actions .command-button { width: 38px; padding: 0; }
  .content-area { padding: 12px 10px 32px; }
  .status-strip, .decision-rail, .evidence-grid, .form-grid, .score-grid, .plan-footer { grid-template-columns: 1fr; }
  .segmented-field { grid-template-columns: 1fr; }
  .segment-group { grid-template-columns: 1fr; border-radius: 5px; }
  .node-segments { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .segment-button { border-right: 0; border-bottom: 1px solid var(--border); }
  .node-segments .segment-button:nth-child(odd) { border-right: 1px solid var(--border); }
  .span-2 { grid-column: auto; }
  .review-toolbar { align-items: flex-start; }
  .review-toolbar > div:last-child { display: grid; }
  .review-toolbar .icon-text-button span { display: none; }
  .review-section dl { grid-template-columns: 1fr; }
  .review-section dt { margin-top: 6px; }
  .candidate-meta-grid, .author-item, .history-item, .candidate-item, .data-row, .outcome-fields { grid-template-columns: 1fr; }
  .external-history-item summary, .external-author-trace, .external-history-content dl { grid-template-columns: 1fr; }
  .author-item .author-link { grid-column: auto; }
  .outcome-fields { grid-column: auto; }
  .history-actions { justify-content: flex-end; }
}