:root {
  --research-ink: #082f29;
  --research-green: #0c4a3f;
  --research-green-soft: #185c4d;
  --research-brown: #66361f;
  --research-paper: #fff6dc;
  --research-paper-deep: #f0d898;
  --research-gold: #e3ad3e;
  --research-coral: #c65c3e;
  --research-muted: #685847;
}

body.relationship-evidence-open .relationship-evidence-backdrop,
body.relationship-research-open .relationship-research-backdrop { display: block; }

.relationship-evidence-backdrop,
.relationship-research-backdrop {
  position: fixed;
  inset: 0;
  z-index: 1410;
  background: rgba(3, 29, 25, .48);
  backdrop-filter: blur(3px);
}

.relationship-evidence-backdrop { z-index: 1320; background: rgba(3, 29, 25, .2); backdrop-filter: none; }

.relationship-evidence-panel,
.relationship-research-shell {
  color: var(--research-ink);
  border: 2px solid #9a6a22;
  box-shadow: 0 22px 70px rgba(2, 24, 21, .38);
  overflow: hidden;
}

.relationship-evidence-panel {
  position: fixed;
  z-index: 1330;
  top: 94px;
  right: 18px;
  bottom: 18px;
  width: min(460px, calc(100vw - 36px));
  border-radius: 18px;
  background: var(--research-paper);
}

.relationship-evidence-header,
.relationship-research-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 18px;
  color: #fff2ca;
  background: linear-gradient(135deg, #733f25, #4a271b);
  border-bottom: 2px solid #d6a23b;
}

.relationship-evidence-header { padding: 18px 18px 16px; }
.relationship-research-header { padding: 22px 26px 20px; }
.relationship-evidence-header span,
.relationship-research-header span,
.relationship-submission-heading span,
.relationship-review-heading span {
  display: block;
  margin-bottom: 4px;
  color: #ffc36e;
  font: 800 12px/1.2 system-ui, sans-serif;
  letter-spacing: .16em;
  text-transform: uppercase;
}
.relationship-evidence-header h2,
.relationship-research-header h2,
.relationship-submission-heading h3,
.relationship-review-heading h3 {
  margin: 0;
  font-family: Georgia, serif;
  line-height: 1.05;
}
.relationship-evidence-header h2 { font-size: 24px; }
.relationship-research-header h2 { font-size: clamp(28px, 3vw, 40px); }
.relationship-research-header p { max-width: 720px; margin: 7px 0 0; color: #f2dfbc; font: 600 14px/1.45 system-ui, sans-serif; }
.relationship-evidence-header button,
.relationship-research-header button {
  flex: 0 0 auto;
  width: 48px;
  height: 48px;
  border: 1px solid var(--research-gold);
  border-radius: 10px;
  color: #fff4d0;
  background: #0c493f;
  font: 700 30px/1 system-ui, sans-serif;
  cursor: pointer;
}

.relationship-evidence-scroll { height: calc(100% - 91px); overflow: auto; padding: 18px; }
.relationship-path-card { padding: 16px; border: 1px solid #b98b42; border-radius: 14px; background: #fffaf0; }
.relationship-path {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 30px minmax(0, 1fr);
  align-items: center;
  gap: 7px;
}
.relationship-path div { min-width: 0; }
.relationship-path small { display: block; color: #80583c; font: 800 11px/1.2 system-ui, sans-serif; letter-spacing: .08em; text-transform: uppercase; }
.relationship-path strong { display: block; margin-top: 3px; font: 700 18px/1.15 Georgia, serif; overflow-wrap: anywhere; }
.relationship-path i { color: #bd633d; font: 900 22px/1 system-ui, sans-serif; text-align: center; font-style: normal; }
.relationship-status-row { display: flex; flex-wrap: wrap; gap: 7px; margin-top: 14px; }
.relationship-status,
.relationship-type-label {
  display: inline-flex;
  align-items: center;
  min-height: 27px;
  padding: 4px 9px;
  border-radius: 999px;
  font: 800 11px/1.2 system-ui, sans-serif;
  letter-spacing: .05em;
  text-transform: uppercase;
}
.relationship-status.is-verified { color: #f7ffec; background: #236a50; }
.relationship-status.is-supported { color: #3f2b10; background: #f1c86b; }
.relationship-status.is-needs-research { color: #fff5dc; background: #9a5a27; }
.relationship-status.is-disputed { color: #fff; background: #9d382d; }
.relationship-status.is-submitted { color: #173b33; background: #d9c68d; }
.relationship-status.is-researching { color: #fff8df; background: #85531e; }
.relationship-status.is-needs-information { color: #fff8df; background: #9b552d; }
.relationship-status.is-approved { color: #fff; background: #23664f; }
.relationship-status.is-rejected { color: #fff; background: #8b382f; }
.relationship-type-label { color: #15463d; border: 1px solid #789b8c; background: #edf6e9; }
.relationship-summary { margin: 16px 0 0; font: 650 16px/1.5 system-ui, sans-serif; }

.relationship-evidence-section { margin-top: 18px; padding-top: 17px; border-top: 1px solid #c5a570; }
.relationship-evidence-section h3 { margin: 0 0 9px; color: #714126; font: 800 13px/1.2 system-ui, sans-serif; letter-spacing: .12em; text-transform: uppercase; }
.relationship-season-list { display: grid; gap: 8px; margin: 0; padding: 0; list-style: none; }
.relationship-season-list li { display: grid; grid-template-columns: 76px 1fr; gap: 9px; padding: 10px 11px; border: 1px solid #d5bd8c; border-radius: 9px; background: #fffdf6; }
.relationship-season-list strong { color: #743d26; font: 800 13px/1.3 system-ui, sans-serif; }
.relationship-season-list span { color: #2e443e; font: 650 13px/1.4 system-ui, sans-serif; }
.relationship-order-note { margin: 8px 0 0; color: #72553d; font: 600 12px/1.45 system-ui, sans-serif; }
.relationship-source-list { display: grid; gap: 7px; margin: 0; padding: 0; list-style: none; }
.relationship-source-list a { display: block; padding: 10px 11px; border: 1px solid #c4a56c; border-radius: 9px; color: #154f44; background: #fffdf5; font: 750 13px/1.35 system-ui, sans-serif; text-decoration-thickness: 1px; }
.relationship-source-list small { display: block; margin-top: 2px; color: #6b5c4d; font-weight: 600; }
.relationship-methodology-copy { margin: 0; color: #4f493f; font: 600 13px/1.5 system-ui, sans-serif; }

.relationship-correction-card { padding: 14px; border: 1px solid #a07839; border-left: 5px solid var(--research-coral); border-radius: 11px; background: #fffaf0; }
.relationship-correction-card > button { width: 100%; min-height: 44px; border: 0; border-radius: 8px; color: #fff6dc; background: var(--research-green); font: 800 14px/1.2 system-ui, sans-serif; cursor: pointer; }
.relationship-correction-card > p { margin: 9px 0 0; color: #665645; font: 600 12px/1.45 system-ui, sans-serif; }
.relationship-correction-form { display: grid; gap: 11px; margin-top: 13px; }
.relationship-correction-form[hidden] { display: none; }
.relationship-correction-form label { display: grid; gap: 5px; color: #543d2b; font: 800 12px/1.25 system-ui, sans-serif; letter-spacing: .03em; }
.relationship-correction-form input,
.relationship-correction-form select,
.relationship-correction-form textarea,
.relationship-catalog-tools input,
.relationship-catalog-tools select,
.relationship-review-notes {
  width: 100%;
  min-height: 43px;
  box-sizing: border-box;
  border: 1px solid #9f7c45;
  border-radius: 8px;
  padding: 9px 10px;
  color: #173c34;
  background: #fffef9;
  font: 650 14px/1.4 system-ui, sans-serif;
}
.relationship-correction-form textarea { min-height: 92px; resize: vertical; }
.relationship-source-fields { display: grid; gap: 7px; }
.relationship-correction-actions { display: flex; gap: 8px; }
.relationship-correction-actions button { flex: 1; min-height: 42px; border: 1px solid #9c702e; border-radius: 8px; font: 800 13px/1.2 system-ui, sans-serif; cursor: pointer; }
.relationship-correction-actions button:first-child { color: #fff5d5; background: var(--research-green); }
.relationship-correction-actions button:last-child { color: #533a27; background: #f6dfaa; }
.relationship-form-status { min-height: 18px; margin: 0; color: #6b4a35; font: 700 12px/1.4 system-ui, sans-serif; }

.relationship-research-shell {
  position: fixed;
  z-index: 1420;
  inset: 18px;
  display: grid;
  grid-template-rows: auto auto auto minmax(0, 1fr) auto;
  border-radius: 18px;
  background: var(--research-paper);
}
.relationship-research-shell[hidden] { display: none; }
.relationship-research-overview { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px; background: #8b6b40; border-bottom: 1px solid #8b6b40; }
.relationship-research-overview div { padding: 13px 18px; background: #f3dda9; }
.relationship-research-overview span { display: block; color: #7b4c29; font: 800 11px/1.2 system-ui, sans-serif; letter-spacing: .1em; text-transform: uppercase; }
.relationship-research-overview strong { display: block; margin-top: 3px; color: #123f35; font: 800 22px/1.1 Georgia, serif; }
.relationship-research-tabs { display: flex; gap: 4px; padding: 8px 18px 0; background: #0e4b40; }
.relationship-research-tabs button { min-height: 42px; padding: 8px 15px; border: 1px solid transparent; border-radius: 9px 9px 0 0; color: #e5e3c9; background: transparent; font: 800 13px/1.2 system-ui, sans-serif; cursor: pointer; }
.relationship-research-tabs button[aria-current="page"] { color: #1d3e36; border-color: #a97732; border-bottom-color: var(--research-paper); background: var(--research-paper); }
.relationship-research-body { min-height: 0; overflow: auto; padding: 18px 22px 26px; }
.relationship-research-view { max-width: 1240px; margin: 0 auto; }
.relationship-research-view[hidden] { display: none; }
.relationship-catalog-tools { display: grid; grid-template-columns: minmax(280px, 1fr) minmax(180px, 280px); gap: 12px; margin-bottom: 15px; }
.relationship-catalog-tools label { color: #513c2e; font: 800 12px/1.25 system-ui, sans-serif; }
.relationship-catalog-tools input,
.relationship-catalog-tools select { display: block; margin-top: 5px; }
.relationship-catalog-list { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px; }
.relationship-catalog-item { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 13px; align-items: center; padding: 14px; border: 1px solid #b89661; border-radius: 11px; background: #fffaf0; text-align: left; }
.relationship-catalog-item button { min-width: 92px; min-height: 40px; border: 1px solid #a57836; border-radius: 8px; color: #fff7dc; background: #145245; font: 800 12px/1.2 system-ui, sans-serif; cursor: pointer; }
.relationship-catalog-item h3 { margin: 0; color: #173d34; font: 700 18px/1.18 Georgia, serif; }
.relationship-catalog-item p { margin: 5px 0 0; color: #695746; font: 600 12px/1.4 system-ui, sans-serif; }
.relationship-catalog-empty,
.relationship-submission-empty,
.relationship-review-empty { padding: 42px 24px; border: 1px dashed #a98753; border-radius: 12px; color: #614f3e; background: #fff9e9; font: 700 14px/1.5 system-ui, sans-serif; text-align: center; }

.relationship-submission-heading,
.relationship-review-heading { display: flex; justify-content: space-between; align-items: flex-start; gap: 18px; margin-bottom: 15px; }
.relationship-submission-heading h3,
.relationship-review-heading h3 { color: #153f36; font-size: 26px; }
.relationship-submission-heading p,
.relationship-review-heading p { max-width: 720px; margin: 6px 0 0; color: #675645; font: 600 13px/1.45 system-ui, sans-serif; }
.relationship-submission-heading button,
.relationship-review-heading button { min-height: 42px; padding: 8px 14px; border: 1px solid #a27736; border-radius: 8px; color: #fff4d2; background: #114e42; font: 800 12px/1.2 system-ui, sans-serif; cursor: pointer; }
#relationshipSubmissionList,
#relationshipReviewList { display: grid; gap: 10px; }
.relationship-submission-item,
.relationship-review-item { padding: 15px; border: 1px solid #b18a52; border-radius: 11px; background: #fffaf0; }
.relationship-submission-item header,
.relationship-review-item header { display: flex; justify-content: space-between; gap: 12px; }
.relationship-submission-item h4,
.relationship-review-item h4 { margin: 0; color: #173f36; font: 700 18px/1.2 Georgia, serif; }
.relationship-submission-item p,
.relationship-review-item p { margin: 7px 0 0; color: #5e5144; font: 600 13px/1.45 system-ui, sans-serif; }
.relationship-submission-meta { display: flex; flex-wrap: wrap; gap: 7px; margin-top: 10px; }
.relationship-submission-meta span { padding: 4px 8px; border-radius: 999px; color: #4f3b28; background: #ecd49e; font: 800 11px/1.2 system-ui, sans-serif; }
.relationship-review-structural { margin-top: 11px; padding: 10px; border-left: 4px solid #d59a2e; color: #4f483e; background: #f7e7bf; font: 700 12px/1.45 system-ui, sans-serif; }
.relationship-review-actions { display: grid; grid-template-columns: minmax(220px, 1fr) repeat(4, auto); gap: 7px; margin-top: 12px; }
.relationship-review-actions button { min-height: 40px; padding: 8px 11px; border: 1px solid #9a7238; border-radius: 7px; color: #173b33; background: #f4dda8; font: 800 11px/1.2 system-ui, sans-serif; cursor: pointer; }
.relationship-review-actions button[data-decision="approved"] { color: #fff; background: #23664f; }
.relationship-review-actions button[data-decision="rejected"] { color: #fff; background: #8b382f; }

.relationship-research-footer { display: flex; align-items: center; justify-content: space-between; gap: 16px; min-height: 58px; padding: 9px 22px; border-top: 1px solid #a17b40; background: #ebd196; }
.relationship-research-footer p { margin: 0; color: #5f482f; font: 700 12px/1.4 system-ui, sans-serif; }
.relationship-research-footer p[data-tone="error"] { color: #862d24; }
.relationship-research-footer button { min-height: 38px; padding: 7px 12px; border: 1px solid #8f662c; border-radius: 7px; color: #173c34; background: #fff5d6; font: 800 12px/1.2 system-ui, sans-serif; cursor: pointer; }

.native-edge[data-relationship-id] { pointer-events: stroke; cursor: pointer; }
.native-edge[data-relationship-id]:hover,
.native-edge[data-relationship-id]:focus,
.native-edge.is-evidence-active { stroke: #ffb13b !important; stroke-width: 6px !important; filter: drop-shadow(0 0 5px rgba(255, 151, 44, .9)); outline: none; }
.native-edge[data-evidence-status="supported"] { stroke-dasharray: 14 5; }
.native-node.is-evidence-endpoint .native-node-frame { stroke: #ffaf38 !important; filter: drop-shadow(0 0 6px rgba(255, 164, 57, .8)); }

@media (max-width: 880px) {
  .relationship-research-shell { inset: 8px; }
  .relationship-research-overview { grid-template-columns: repeat(2, 1fr); }
  .relationship-catalog-list { grid-template-columns: 1fr; }
  .relationship-review-actions { grid-template-columns: 1fr 1fr; }
  .relationship-review-notes { grid-column: 1 / -1; }
}

@media (max-width: 620px) {
  .relationship-evidence-panel { inset: 74px 6px 6px; width: auto; border-radius: 13px; }
  .relationship-evidence-backdrop { background: rgba(3, 29, 25, .5); backdrop-filter: blur(2px); }
  .relationship-research-shell { inset: 3px; border-radius: 11px; }
  .relationship-research-header { padding: 16px; }
  .relationship-research-header h2 { font-size: 27px; }
  .relationship-research-header p { display: none; }
  .relationship-research-header button { width: 44px; height: 44px; }
  .relationship-research-overview div { padding: 9px 11px; }
  .relationship-research-overview strong { font-size: 18px; }
  .relationship-research-tabs { padding-inline: 7px; overflow-x: auto; }
  .relationship-research-tabs button { white-space: nowrap; }
  .relationship-research-body { padding: 13px 10px 20px; }
  .relationship-catalog-tools { grid-template-columns: 1fr; }
  .relationship-catalog-item { grid-template-columns: 1fr; }
  .relationship-catalog-item button { width: 100%; }
  .relationship-submission-heading,
  .relationship-review-heading { display: grid; }
  .relationship-submission-heading button,
  .relationship-review-heading button { width: 100%; }
  .relationship-research-footer { padding: 8px 10px; }
  .relationship-research-footer button { display: none; }
}

@media (prefers-reduced-motion: reduce) {
  .relationship-evidence-panel,
  .relationship-research-shell { scroll-behavior: auto; }
}