:root {
  --font-serif: Cambria, Georgia, "Times New Roman", Times, serif;
  --bg: #f2f7fb;
  --surface: #ffffff;
  --surface-soft: #f6fafe;
  --ink: #17324a;
  --muted: #64798c;
  --line: #d5e3ef;
  --accent: #4d98cf;
  --accent-dark: #2e6f9f;
  --accent-soft: #e8f4fc;
  --success: #24765b;
  --success-soft: #edf8f4;
  --danger: #a94b56;
  --danger-soft: #fbeff1;
  --warn: #8d6a23;
  --warn-soft: #fff8e8;
  --cost: #687889;
  --shadow: 0 9px 26px rgba(40, 91, 128, 0.065);
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-serif);
  font-size: 14px;
  line-height: 1.45;
}

.shell {
  width: min(1500px, calc(100% - 34px));
  margin: 0 auto;
  padding: 28px 0 46px;
}

.topbar,
.panelHead,
.tradeCardHead {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 20px;
}

h1, h2, p { margin: 0; }

h1 {
  margin-top: 2px;
  font-family: var(--font-serif);
  font-size: clamp(1.75rem, 2.6vw, 2.35rem);
  font-weight: 700;
  letter-spacing: -0.025em;
}

h2 {
  font-family: var(--font-serif);
  font-size: 1.15rem;
  letter-spacing: -0.01em;
}

.eyebrow,
.label,
.protocolSelectLabel {
  color: var(--accent);
  font-size: 0.7rem;
  font-weight: 800;
  letter-spacing: 0.095em;
  text-transform: uppercase;
}

.sub { margin-top: 6px; color: var(--muted); }
.subLine { color: var(--muted); font-size: 0.79rem; line-height: 1.4; }

.actions,
.pillRow {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
}

.actions { justify-content: flex-end; }
.pillRow { margin-top: 13px; }

.protocolSelectLabel {
  display: grid;
  gap: 4px;
}

.protocolSelect,
.btn {
  min-height: 38px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
  color: var(--ink);
  font: inherit;
  font-weight: 700;
}

.protocolSelect { min-width: 225px; padding: 6px 10px; }

.btn {
  display: inline-flex;
  align-items: center;
  padding: 8px 13px;
  color: #fff;
  background: var(--accent);
  border-color: var(--accent);
  text-decoration: none;
}

.btn:hover { background: var(--accent-dark); }

.pill {
  display: inline-flex;
  min-height: 27px;
  align-items: center;
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 4px 10px;
  background: var(--surface);
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 700;
}

.pillGood { color: var(--accent-dark); background: var(--accent-soft); border-color: #b9d9ef; }
.pillWarn { color: var(--warn); background: var(--warn-soft); border-color: #e9d8ad; }
.pillBad { color: var(--danger); background: var(--danger-soft); border-color: #e7c2c7; }
.pillNeutral { color: var(--muted); }

.experimentBar {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr 0.8fr 2.2fr;
  margin-top: 22px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: #dceefa;
  color: var(--ink);
  overflow: hidden;
  box-shadow: var(--shadow);
}

.experimentBar > div { padding: 12px 15px; border-right: 1px solid rgba(46, 111, 159, 0.15); }
.experimentBar > div:last-child { border-right: 0; }
.experimentBar span { display: block; color: var(--accent-dark); font-size: 0.7rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.06em; }
.experimentBar strong { display: block; margin-top: 3px; font-size: 0.82rem; line-height: 1.35; }

.panel {
  margin-top: 15px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--surface);
  box-shadow: var(--shadow);
  overflow: hidden;
}

.panelHead { padding: 15px 17px; border-bottom: 1px solid var(--line); }
.panelHead .subLine { margin-top: 3px; }

.definitionPanel { border-top: 3px solid var(--accent); }
.definitionPanel .panelHead { border-bottom: 0; }

.sideBadge,
.decisionBadge {
  display: inline-flex;
  align-items: center;
  min-height: 25px;
  padding: 3px 8px;
  border-radius: 999px;
  font-size: 0.68rem;
  font-weight: 900;
  letter-spacing: 0.055em;
  text-transform: uppercase;
  white-space: nowrap;
}

.sideBadge { color: #fff; background: #4f7fa5; }
.decisionPass { color: var(--success); background: var(--success-soft); }
.decisionReject { color: var(--danger); background: var(--danger-soft); }

.thresholdGrid {
  display: grid;
  grid-template-columns: repeat(6, minmax(150px, 1fr));
  border-top: 1px solid var(--line);
}

.thresholdItem { min-width: 0; padding: 13px 15px; border-right: 1px solid var(--line); background: var(--surface-soft); }
.thresholdItem:last-child { border-right: 0; }
.thresholdItem span,
.thresholdItem small { display: block; color: var(--muted); }
.thresholdItem span { font-size: 0.7rem; font-weight: 750; text-transform: uppercase; letter-spacing: 0.045em; }
.thresholdItem strong { display: block; margin-top: 4px; font-size: 0.91rem; overflow-wrap: anywhere; }
.thresholdItem small { margin-top: 2px; font-size: 0.7rem; }

.metricGrid {
  display: grid;
  grid-template-columns: repeat(6, minmax(150px, 1fr));
  gap: 10px;
  margin-top: 11px;
}

.metric {
  min-height: 112px;
  padding: 14px 15px;
  border: 1px solid var(--line);
  border-radius: 9px;
  background: var(--surface);
  box-shadow: var(--shadow);
}

.metricEmphasis { background: #edf7fd; border-color: #bcd9ed; }
.metricValue { margin: 9px 0 3px; font-family: var(--font-serif); font-size: 1.45rem; font-weight: 700; letter-spacing: -0.02em; }

.tableWrap { width: 100%; overflow-x: auto; }

table { width: 100%; border-collapse: collapse; }
th, td { padding: 10px 11px; border-bottom: 1px solid var(--line); text-align: left; vertical-align: top; }
th { color: var(--muted); background: var(--surface-soft); font-size: 0.66rem; font-weight: 800; letter-spacing: 0.045em; text-transform: uppercase; white-space: nowrap; }
tbody tr:last-child > td { border-bottom: 0; }
.right { text-align: right; }
.symbol, .protocolName { color: var(--ink); font-weight: 800; white-space: nowrap; }
.selectableRow { cursor: pointer; transition: background 120ms ease; }
.selectableRow:hover { background: #f2f8fc; }
.selectedRow { background: var(--accent-soft); box-shadow: inset 3px 0 var(--accent); }
.selectedRow:hover { background: var(--accent-soft); }
.comparisonTable { min-width: 1160px; }
.tradeTable { min-width: 1120px; }
.decisionTable { min-width: 1280px; }

.paginationBar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 10px 13px;
  border-top: 1px solid var(--line);
  background: var(--surface-soft);
  color: var(--muted);
  font-size: 0.76rem;
  font-weight: 700;
}

.paginationControls { display: flex; gap: 7px; }

.paginationButton {
  min-height: 32px;
  padding: 5px 11px;
  border: 1px solid #b9d9ef;
  border-radius: 7px;
  background: var(--surface);
  color: var(--accent-dark);
  font: inherit;
  font-size: 0.76rem;
  font-weight: 750;
  cursor: pointer;
}

.paginationButton:hover:not(:disabled) { background: var(--accent-soft); }
.paginationButton:disabled { cursor: default; opacity: 0.45; }

.upText, .passText { color: var(--success) !important; }
.downText, .failText { color: var(--danger) !important; }
.costText { color: var(--cost) !important; }

.activityCounts {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
}

.activityCounts > div { padding: 14px 17px; border-right: 1px solid var(--line); }
.activityCounts > div:last-child { border-right: 0; }
.activityCounts span { display: block; color: var(--muted); font-size: 0.7rem; text-transform: uppercase; letter-spacing: 0.05em; }
.activityCounts strong { display: block; margin-top: 2px; font-size: 1.12rem; }

.tradeCards { display: grid; gap: 10px; padding: 12px; }
.tradeCard { border: 1px solid var(--line); border-radius: 9px; background: var(--surface-soft); overflow: hidden; }
.tradeCardHead { align-items: center; padding: 13px 14px; }
.tradePnl { margin-left: auto; text-align: right; }
.tradePnl strong, .tradePnl span { display: block; }
.tradePnl strong { font-size: 1.1rem; }
.tradePnl span { color: var(--muted); font-size: 0.7rem; }

.tradeEconomics {
  display: grid;
  grid-template-columns: repeat(5, minmax(150px, 1fr));
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: var(--surface);
}

.tradeEconomics > div { padding: 9px 12px; border-right: 1px solid var(--line); }
.tradeEconomics > div:last-child { border-right: 0; }
.tradeEconomics span, .tradeEconomics strong { display: block; }
.tradeEconomics span { color: var(--muted); font-size: 0.68rem; text-transform: uppercase; }
.tradeEconomics strong { margin-top: 2px; font-size: 0.82rem; }

.auditRow > td { padding: 0 10px 11px; background: #f8fbfe; }
.auditGrid {
  display: grid;
  grid-template-columns: repeat(5, minmax(180px, 1fr));
  gap: 7px;
  padding: 10px;
  background: #f4f9fd;
}

.tradeCard .auditGrid { border-top: 0; }
.auditItem { min-width: 0; padding: 8px 9px; border: 1px solid #dfeaf2; border-radius: 7px; background: var(--surface); }
.auditItem span, .auditItem strong { display: block; }
.auditItem span { color: var(--muted); font-size: 0.67rem; font-weight: 750; letter-spacing: 0.035em; text-transform: uppercase; }
.auditItem strong { margin-top: 3px; font-size: 0.77rem; font-weight: 650; line-height: 1.4; overflow-wrap: anywhere; }

.empty { padding: 24px 17px; color: var(--muted); text-align: center; }

.footerNote {
  max-width: 1050px;
  margin: 20px auto 0;
  color: var(--muted);
  font-size: 0.76rem;
  line-height: 1.55;
  text-align: center;
}

/* Read-only experiment design page */
.designIntro { margin-top: 20px; padding: 17px 18px; }
.designIntro p { margin-top: 5px; color: var(--muted); }
.configStack { display: grid; gap: 15px; margin-top: 15px; }
.configStack .panel { margin-top: 0; }
.designGrid { display: grid; grid-template-columns: repeat(4, minmax(170px, 1fr)); }
.designItem { padding: 13px 15px; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.designItem span, .designItem strong, .designItem small { display: block; }
.designItem span { color: var(--muted); font-size: 0.68rem; font-weight: 750; letter-spacing: 0.04em; text-transform: uppercase; }
.designItem strong { margin-top: 3px; font-size: 0.86rem; }
.designItem small { margin-top: 2px; color: var(--muted); font-size: 0.7rem; }
.frozenNote { display: flex; align-items: flex-start; gap: 10px; padding: 13px 15px; color: var(--accent-dark); background: var(--accent-soft); border-top: 1px solid #c4dff1; font-size: 0.79rem; }
.frozenNote strong { white-space: nowrap; }
.validationGood { color: var(--success); }
.validationBad { color: var(--danger); }

@media (max-width: 1180px) {
  .experimentBar { grid-template-columns: repeat(2, 1fr); }
  .experimentBar > div:nth-child(2) { border-right: 0; }
  .experimentBar > div:nth-child(-n+2) { border-bottom: 1px solid rgba(46, 111, 159, 0.15); }
  .thresholdGrid, .metricGrid, .activityCounts { grid-template-columns: repeat(3, 1fr); }
  .thresholdItem:nth-child(3), .activityCounts > div:nth-child(3) { border-right: 0; }
  .thresholdItem:nth-child(-n+3), .activityCounts > div:nth-child(-n+3) { border-bottom: 1px solid var(--line); }
  .auditGrid { grid-template-columns: repeat(3, minmax(180px, 1fr)); }
  .designGrid { grid-template-columns: repeat(3, 1fr); }
}

@media (max-width: 760px) {
  .shell { width: min(100% - 20px, 1500px); padding-top: 18px; }
  .topbar, .panelHead { flex-direction: column; }
  .actions { width: 100%; justify-content: stretch; align-items: end; }
  .protocolSelectLabel { flex: 1; }
  .protocolSelect { width: 100%; min-width: 0; }
  .experimentBar { grid-template-columns: 1fr; }
  .experimentBar > div { border-right: 0; border-bottom: 1px solid rgba(46, 111, 159, 0.15); }
  .experimentBar > div:last-child { border-bottom: 0; }
  .thresholdGrid, .metricGrid, .activityCounts, .tradeEconomics, .auditGrid, .designGrid { grid-template-columns: 1fr; }
  .thresholdItem, .activityCounts > div, .tradeEconomics > div, .designItem { border-right: 0; border-bottom: 1px solid var(--line); }
  .thresholdItem:last-child, .activityCounts > div:last-child, .tradeEconomics > div:last-child, .designItem:last-child { border-bottom: 0; }
  .metric { min-height: 96px; }
  .paginationBar { align-items: flex-start; flex-direction: column; }
}