:root {
  --ink: #111;
  --muted: #656565;
  --line: #d7d7d7;
  --soft: #f4f4f2;
  --paper: #fbfbf8;
  --white: #fff;
}

* { box-sizing: border-box; }
body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: Inter, "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;
  font-size: 14px;
}
button, select { font: inherit; color: inherit; }
button { cursor: pointer; }
.app-shell { min-height: 100vh; display: grid; grid-template-columns: 232px 1fr; }
.sidebar {
  position: sticky; top: 0; height: 100vh;
  display: flex; flex-direction: column;
  padding: 28px 18px 20px;
  border-right: 1px solid var(--line);
  background: var(--white);
}
.brand { display: flex; align-items: center; gap: 12px; padding: 0 8px 30px; }
.brand-mark {
  width: 36px; height: 36px; display: grid; place-items: center;
  border: 2px solid var(--ink); font-weight: 800;
}
.brand strong, .brand small { display: block; }
.brand small { margin-top: 3px; color: var(--muted); font-size: 9px; letter-spacing: .08em; }
nav { display: grid; gap: 6px; }
.nav-item {
  width: 100%; padding: 12px; display: flex; gap: 14px; align-items: center;
  border: 1px solid transparent; background: transparent; text-align: left;
}
.nav-item span { color: #999; font: 11px ui-monospace, monospace; }
.nav-item:hover { background: var(--soft); }
.nav-item.active { border-color: var(--ink); background: var(--ink); color: var(--white); }
.nav-item.active span { color: #bbb; }
.sidebar-note {
  margin-top: auto; padding: 14px 10px; display: flex; gap: 10px; align-items: center;
  border-top: 1px solid var(--line);
}
.sidebar-note strong, .sidebar-note small { display: block; }
.sidebar-note small { color: var(--muted); margin-top: 3px; }
.status-dot { width: 8px; height: 8px; border-radius: 50%; background: var(--ink); }
main { min-width: 0; }
.topbar {
  height: 94px; padding: 20px 34px; display: flex; justify-content: space-between; align-items: center;
  border-bottom: 1px solid var(--line); background: rgba(251,251,248,.96);
  position: sticky; top: 0; z-index: 10; backdrop-filter: blur(12px);
}
.eyebrow { font-size: 10px; letter-spacing: .14em; color: var(--muted); }
h1 { margin: 5px 0 0; font-size: 22px; letter-spacing: -.02em; }
.top-actions { display: flex; align-items: end; gap: 10px; }
.compact-field span, .control-bar label > span, .control-bar > div > span {
  display: block; margin-bottom: 5px; color: var(--muted); font-size: 11px;
}
select { min-width: 180px; padding: 9px 32px 9px 10px; border: 1px solid var(--line); background: var(--white); }
.primary-button { padding: 10px 15px; border: 1px solid var(--ink); background: var(--ink); color: var(--white); }
.page { display: none; padding: 26px 34px 50px; }
.page.active { display: block; }
.run-banner { margin: 18px 34px 0; padding: 12px 15px; background: var(--ink); color: var(--white); display: flex; align-items: center; gap: 12px; }
.run-banner small, .run-banner strong { display: block; }
.run-banner small { color: #bbb; margin-top: 2px; }
.spinner { width: 18px; height: 18px; border: 2px solid #777; border-top-color: #fff; border-radius: 50%; animation: spin 1s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }
.hidden { display: none !important; }
.decision-strip, .control-bar, .message-band {
  min-height: 62px; padding: 13px 16px; border: 1px solid var(--line); background: var(--white);
  display: flex; justify-content: space-between; align-items: center; gap: 20px; margin-bottom: 16px;
}
.decision-strip span, .decision-strip strong { display: block; }
.decision-strip span { color: var(--muted); font-size: 11px; margin-bottom: 5px; }
.segmented { display: inline-flex; border: 1px solid var(--ink); }
.segmented button { padding: 8px 11px; border: 0; border-right: 1px solid var(--ink); background: var(--white); }
.segmented button:last-child { border-right: 0; }
.segmented button.active { background: var(--ink); color: var(--white); }
.segmented.compact button { padding: 6px 12px; font-size: 11px; }
.metric-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; margin-bottom: 16px; }
.metric-card { min-height: 112px; padding: 17px; border: 1px solid var(--line); background: var(--white); }
.metric-card.featured { border: 2px solid var(--ink); padding: 16px; }
.metric-card span, .metric-card small { display: block; color: var(--muted); }
.metric-card strong { display: block; margin: 11px 0 5px; font-size: 25px; letter-spacing: -.04em; }
#next-interval { font-size: 21px; white-space: nowrap; }
.two-column { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-bottom: 16px; }
.two-column.wide-left { grid-template-columns: minmax(0, 1.8fr) minmax(270px, .7fr); }
.panel { border: 1px solid var(--line); background: var(--white); padding: 18px; margin-bottom: 16px; min-width: 0; }
.two-column > .panel { margin-bottom: 0; }
.panel-header { min-height: 42px; display: flex; align-items: flex-start; justify-content: space-between; gap: 15px; margin-bottom: 17px; }
.panel-header > div:first-child { display: flex; align-items: flex-start; gap: 10px; }
.section-index {
  flex: 0 0 23px; width: 23px; height: 23px; display: grid; place-items: center;
  border: 1px solid var(--ink); font: 11px ui-monospace, monospace;
}
h2 { margin: 0 0 3px; font-size: 15px; }
.panel-header p { margin: 0; color: var(--muted); font-size: 11px; }
.legend { display: flex; gap: 14px; color: var(--muted); font-size: 11px; }
.legend span::before { content: ""; display: inline-block; width: 19px; margin-right: 6px; border-top: 2px solid var(--ink); vertical-align: middle; }
.legend .legend-forecast::before { border-top-style: dashed; }
.chart-wrap { height: 300px; width: 100%; position: relative; }
.chart-wrap svg { width: 100%; height: 100%; overflow: visible; }
.grid-line { stroke: #e3e3e3; stroke-width: 1; }
.axis-text { fill: #777; font-size: 10px; }
.actual-line { fill: none; stroke: var(--ink); stroke-width: 2; }
.forecast-line { fill: none; stroke: var(--ink); stroke-width: 2; stroke-dasharray: 7 5; }
.interval-area { fill: url(#stripe); opacity: .55; }
.chart-point { fill: var(--white); stroke: var(--ink); stroke-width: 1.5; }
.decision-number span { color: var(--muted); }
.decision-number strong { display: block; margin-top: 7px; font-size: 30px; }
.rule { height: 1px; background: var(--line); margin: 16px 0; }
.insight-list { list-style: none; padding: 0; margin: 0; display: grid; gap: 14px; }
.insight-list li { padding-left: 14px; border-left: 2px solid var(--ink); line-height: 1.55; }
.note-box { margin-top: 18px; padding: 13px; background: var(--soft); }
.note-box p { margin: 6px 0 0; color: var(--muted); line-height: 1.55; font-size: 12px; }
table { width: 100%; border-collapse: collapse; text-align: left; }
th { padding: 10px; color: var(--muted); font-size: 11px; font-weight: 500; border-bottom: 1px solid var(--ink); white-space: nowrap; }
td { padding: 11px 10px; border-bottom: 1px solid var(--line); white-space: nowrap; }
tbody tr:hover { background: var(--soft); }
tbody tr.selected-row { background: var(--soft); box-shadow: inset 3px 0 0 var(--ink); }
.tag { display: inline-block; padding: 3px 7px; border: 1px solid var(--ink); font-size: 10px; }
.tag.soft { border-color: var(--line); color: var(--muted); }
.tag.monitor { border-style: dashed; background: var(--soft); }
.tag.warning { color: var(--white); background: var(--ink); }
.table-footnote { margin-top: 12px; padding: 10px 12px; color: var(--muted); background: var(--soft); font-size: 11px; line-height: 1.6; }
.table-footnote strong { color: var(--ink); }
.control-bar { align-items: end; }
.control-bar > div { display: flex; align-items: end; gap: 12px; }
.control-bar > div > span { margin-bottom: 10px; }
.check-list { display: grid; gap: 10px; }
.check-list > div { display: flex; gap: 11px; padding: 11px; border: 1px solid var(--line); }
.check-list > div > span { width: 22px; height: 22px; display: grid; place-items: center; border: 1px solid var(--ink); }
.check-list strong, .check-list small { display: block; }
.check-list small { margin-top: 3px; color: var(--muted); }
.message-band { justify-content: flex-start; border-left: 4px solid var(--ink); }
.message-band span { color: var(--muted); }
.diagnostic-message { margin-bottom: 16px; }
.diagnostic-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.diagnostic-grid h3 { margin: 0 0 10px; font-size: 12px; }
.diagnostic-grid.compact-top { margin-top: 16px; }
.diagnostic-grid .note-box { margin-top: 0; }
.compact-list { margin: 7px 0 0; padding-left: 17px; color: var(--muted); font-size: 11px; line-height: 1.6; }
.compact-list li + li { margin-top: 5px; }
.bar-list { display: grid; gap: 13px; }
.bar-row { display: grid; grid-template-columns: 110px 1fr 52px; gap: 10px; align-items: center; }
.bar-track { height: 16px; background: var(--soft); border: 1px solid var(--line); }
.bar-fill { height: 100%; background: var(--ink); }
.bar-value { text-align: right; font: 11px ui-monospace, monospace; }
.contribution-chart { display: grid; gap: 8px; }
.contrib-row { display: grid; grid-template-columns: 110px 1fr 70px; gap: 10px; align-items: center; }
.contrib-track { height: 18px; position: relative; background: linear-gradient(90deg, transparent 49.8%, var(--line) 50%, transparent 50.2%); }
.contrib-bar { position: absolute; top: 2px; height: 14px; background: var(--ink); }
.contrib-bar.negative { background: repeating-linear-gradient(135deg, var(--ink) 0 2px, transparent 2px 5px); border: 1px solid var(--ink); }
.filter-pills { display: flex; gap: 5px; }
.filter-pills button { padding: 5px 9px; background: var(--white); border: 1px solid var(--line); }
.filter-pills button.active { background: var(--ink); color: var(--white); border-color: var(--ink); }
.factor-grid { display: grid; grid-template-columns: repeat(5, 1fr); gap: 9px; }
.factor-card { min-height: 128px; padding: 12px; border: 1px solid var(--line); background: var(--white); text-align: left; position: relative; }
.factor-card:hover, .factor-card:focus-visible { border-color: var(--ink); outline: 0; box-shadow: inset 0 -3px 0 var(--ink); }
.factor-card strong, .factor-card small { display: block; }
.factor-card small { margin-top: 5px; color: var(--muted); line-height: 1.4; }
.factor-card .tag { margin-top: 10px; }
.factor-open { display: block; margin-top: 10px; font-size: 10px; color: var(--muted); }
.drawer-open { overflow: hidden; }
.drawer-shell { position: fixed; inset: 0; z-index: 200; display: flex; justify-content: flex-end; }
.drawer-backdrop { position: absolute; inset: 0; background: rgba(17,17,17,.36); }
.factor-drawer { position: relative; width: min(620px, 92vw); height: 100%; overflow: auto; background: var(--paper); border-left: 1px solid var(--ink); box-shadow: -18px 0 50px rgba(0,0,0,.12); }
.drawer-header { position: sticky; top: 0; z-index: 2; min-height: 92px; display: flex; justify-content: space-between; align-items: center; padding: 20px 24px; border-bottom: 1px solid var(--line); background: rgba(251,251,248,.96); backdrop-filter: blur(12px); }
.drawer-header small { color: var(--muted); font: 10px ui-monospace, monospace; letter-spacing: .08em; }
.drawer-header h2 { margin-top: 6px; font-size: 22px; }
.drawer-close { width: 38px; height: 38px; border: 1px solid var(--ink); background: var(--white); font-size: 24px; line-height: 1; }
.drawer-body { padding: 22px 24px 40px; }
.detail-status-line { display: flex; flex-wrap: wrap; gap: 7px; margin-bottom: 16px; }
.detail-lead { margin: 0 0 18px; padding: 14px 16px; border-left: 4px solid var(--ink); background: var(--white); line-height: 1.65; }
.detail-metric-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 10px; margin-bottom: 18px; }
.detail-metric { min-height: 96px; padding: 13px; border: 1px solid var(--line); background: var(--white); }
.detail-metric span, .detail-metric small { display: block; color: var(--muted); }
.detail-metric strong { display: block; margin: 9px 0 5px; font-size: 18px; }
.detail-section { padding: 17px 0; border-top: 1px solid var(--line); }
.detail-section h3 { margin: 0 0 9px; font-size: 13px; }
.detail-section p { margin: 0; color: #333; line-height: 1.7; }
.detail-definition { display: grid; grid-template-columns: 88px 1fr; gap: 9px 14px; margin: 0; }
.detail-definition dt { color: var(--muted); }
.detail-definition dd { margin: 0; line-height: 1.6; }
.detail-caveat { padding: 13px; background: var(--soft); color: var(--muted); font-size: 12px; line-height: 1.65; }
.quality-gates { display: grid; gap: 9px; }
.quality-gate { display: flex; justify-content: space-between; gap: 10px; padding: 11px 0; border-bottom: 1px solid var(--line); }
.quality-gate strong, .quality-gate small { display: block; }
.quality-gate small { margin-top: 3px; color: var(--muted); }
.quality-gate > span { font: 11px ui-monospace, monospace; }
a { color: var(--ink); text-underline-offset: 3px; }
.tooltip { position: fixed; pointer-events: none; z-index: 100; padding: 8px 10px; background: var(--ink); color: var(--white); font-size: 11px; line-height: 1.5; }

@media (max-width: 1100px) {
  .metric-grid { grid-template-columns: repeat(2, 1fr); }
  .factor-grid { grid-template-columns: repeat(3, 1fr); }
  .two-column, .two-column.wide-left, .diagnostic-grid { grid-template-columns: 1fr; }
}
@media (max-width: 760px) {
  .app-shell { grid-template-columns: 1fr; }
  .sidebar { position: static; height: auto; padding: 14px; }
  .brand { padding-bottom: 12px; }
  nav { grid-template-columns: repeat(4, 1fr); }
  .nav-item { justify-content: center; padding: 9px 5px; font-size: 11px; }
  .nav-item span, .sidebar-note { display: none; }
  .topbar { position: static; height: auto; padding: 18px; align-items: flex-start; }
  .top-actions .compact-field { display: none; }
  .page { padding: 18px; }
  .decision-strip, .control-bar { align-items: flex-start; flex-direction: column; }
  .panel-header.responsive-header { flex-direction: column; }
  .metric-grid, .factor-grid { grid-template-columns: 1fr 1fr; }
  #next-interval { white-space: normal; }
  .topbar h1 { font-size: 18px; }
  .factor-drawer { width: 100vw; }
  .drawer-header, .drawer-body { padding-left: 18px; padding-right: 18px; }
  .detail-metric-grid { grid-template-columns: 1fr 1fr; }
}