.rdai-method {
  --method-blue: #2563eb;
  --method-blue-dark: #1d4ed8;
  --method-ink: #111827;
  --method-muted: #6b7280;
  --method-line: #dbe3ee;
  --method-pale: #eff6ff;
  --method-blue-soft: #dbeafe;
  --method-white: #fff;
  background: #fff;
  color: var(--method-ink);
}

.rdai-method *,
.rdai-method *::before,
.rdai-method *::after {
  box-sizing: border-box;
}

.rdai-method-wrap {
  width: min(1152px, calc(100% - 48px));
  margin-inline: auto;
}

.rdai-method h1,
.rdai-method h2,
.rdai-method h3,
.rdai-method p {
  margin-top: 0;
}

.rdai-method h1 {
  max-width: 850px;
  margin-bottom: 20px;
  font-size: clamp(38px, 5vw, 58px);
  font-weight: 700;
  line-height: 1.08;
  letter-spacing: -.04em;
}

.rdai-method h2 {
  max-width: 850px;
  margin-bottom: 14px;
  font-size: clamp(29px, 3.5vw, 42px);
  font-weight: 700;
  line-height: 1.17;
  letter-spacing: -.025em;
}

.rdai-method h3 {
  margin-bottom: 10px;
  font-size: 18px;
  font-weight: 700;
  line-height: 1.35;
}

.rdai-method-eyebrow {
  margin-bottom: 11px;
  color: var(--method-blue);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .1em;
  line-height: 1.4;
  text-transform: uppercase;
}

.rdai-method-lead {
  max-width: 780px;
  margin-bottom: 0;
  color: var(--method-muted);
  font-size: 18px;
  line-height: 1.65;
}

.rdai-method-section {
  padding: 88px 0;
  border-bottom: 1px solid var(--method-line);
  background: var(--method-white);
  scroll-margin-top: 92px;
}

.rdai-method-section--blue {
  background: var(--method-pale);
}

.rdai-method-hero {
  position: relative;
  overflow: hidden;
  padding: 104px 0 92px;
  border-bottom: 1px solid var(--method-line);
  background: var(--method-white);
}

.rdai-method-blob {
  position: absolute;
  border-radius: 50%;
  filter: blur(60px);
  pointer-events: none;
}

.rdai-method-blob--one {
  top: -120px;
  right: -80px;
  width: 390px;
  height: 390px;
  background: #dbeafe;
  opacity: .62;
}

.rdai-method-blob--two {
  bottom: -100px;
  left: -60px;
  width: 250px;
  height: 250px;
  background: #bfdbfe;
  opacity: .3;
}

.rdai-method-hero__grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 1.45fr) minmax(330px, .75fr);
  gap: 70px;
  align-items: center;
}

.rdai-method-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 30px;
}

.rdai-method-btn {
  display: inline-flex;
  min-height: 48px;
  align-items: center;
  justify-content: center;
  padding: 12px 20px;
  border: 1px solid transparent;
  border-radius: 12px;
  font-size: 15px;
  font-weight: 600;
  line-height: 1.4;
  text-decoration: none;
  transition:
    background-color .18s ease,
    border-color .18s ease,
    color .18s ease,
    transform .18s ease;
}

.rdai-method-btn--primary {
  border-color: var(--method-blue);
  background: var(--method-blue);
  color: #fff !important;
}

.rdai-method-btn--primary:hover {
  border-color: var(--method-blue-dark);
  background: var(--method-blue-dark);
  transform: translateY(-1px);
}

.rdai-method-btn--ghost {
  border-color: #cbd5e1;
  background: #fff;
  color: var(--method-ink) !important;
}

.rdai-method-btn--ghost:hover {
  border-color: var(--method-blue);
  color: var(--method-blue) !important;
}

.rdai-method-hero__scheme {
  padding: 26px;
  border: 1px solid var(--method-line);
  border-radius: 12px;
  background: rgba(255, 255, 255, .9);
  box-shadow: 0 18px 50px rgba(37, 99, 235, .08);
}

.rdai-method-hero__node {
  padding: 17px 18px;
  border: 1px solid var(--method-line);
  border-radius: 10px;
  background: #fff;
}

.rdai-method-hero__node span,
.rdai-method-hero__node strong {
  display: block;
}

.rdai-method-hero__node span {
  margin-bottom: 4px;
  color: var(--method-muted);
  font-size: 12px;
}

.rdai-method-hero__node strong {
  font-size: 14px;
  line-height: 1.45;
}

.rdai-method-hero__node--core {
  border-color: #93c5fd;
  background: var(--method-pale);
}

.rdai-method-hero__node--core span {
  color: var(--method-blue);
  font-weight: 700;
}

.rdai-method-hero__arrow {
  padding: 7px 0;
  color: var(--method-blue);
  font-weight: 700;
  text-align: center;
}

.rdai-method-compare,
.rdai-method-grid {
  display: grid;
  gap: 22px;
  margin-top: 38px;
}

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

.rdai-method-grid--4 {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.rdai-method-panel,
.rdai-method-card,
.rdai-method-proof {
  padding: 26px;
  border: 1px solid var(--method-line);
  border-radius: 12px;
  background: #fff;
}

.rdai-method-panel--weak {
  border-color: #f1d09a;
  background: #fffbeb;
}

.rdai-method-panel--strong {
  border-color: #93c5fd;
  background: #f8fbff;
}

.rdai-method-label {
  display: inline-block;
  margin-bottom: 14px;
  color: var(--method-blue);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .08em;
  text-transform: uppercase;
}

.rdai-method-panel ul,
.rdai-method-pilot ul {
  margin: 17px 0 0;
  padding: 0;
  list-style: none;
}

.rdai-method-panel li,
.rdai-method-pilot li {
  position: relative;
  margin-top: 11px;
  padding-left: 19px;
  color: #4b5563;
  font-size: 15px;
  line-height: 1.55;
}

.rdai-method-panel li::before,
.rdai-method-pilot li::before {
  position: absolute;
  top: .65em;
  left: 0;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--method-blue);
  content: "";
}

.rdai-method-atomic {
  display: grid;
  grid-template-columns: minmax(0, .9fr) 48px minmax(0, 1.1fr);
  gap: 24px;
  align-items: center;
  margin-top: 40px;
}

.rdai-method-source-card {
  padding: 28px;
  border: 1px solid var(--method-line);
  border-radius: 12px;
  background: #fff;
  box-shadow: 0 12px 35px rgba(17, 24, 39, .05);
}

.rdai-method-source-card blockquote {
  margin: 0;
  font-size: 18px;
  font-weight: 600;
  line-height: 1.6;
}

.rdai-method-source-card p {
  margin: 18px 0 0;
  color: var(--method-muted);
  font-size: 13px;
}

.rdai-method-atomic__arrow {
  color: var(--method-blue);
  font-size: 28px;
  font-weight: 700;
  text-align: center;
}

.rdai-method-atoms {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  overflow: hidden;
  margin: 0;
  border: 1px solid var(--method-line);
  border-radius: 12px;
  background: var(--method-line);
}

.rdai-method-atoms div {
  padding: 17px;
  background: #fff;
}

.rdai-method-atoms dt {
  margin-bottom: 4px;
  color: var(--method-muted);
  font-size: 12px;
}

.rdai-method-atoms dd {
  margin: 0;
  font-size: 15px;
  font-weight: 700;
}

.rdai-method-canonical {
  display: grid;
  grid-template-columns: minmax(280px, .75fr) minmax(0, 1.25fr);
  gap: 28px;
  align-items: stretch;
  margin-top: 40px;
}

.rdai-method-canonical__core {
  display: flex;
  min-height: 270px;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 34px;
  border: 2px solid var(--method-blue);
  border-radius: 12px;
  background: #fff;
  text-align: center;
  box-shadow: 0 16px 45px rgba(37, 99, 235, .1);
}

.rdai-method-canonical__core span {
  color: var(--method-blue);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .06em;
  text-transform: uppercase;
}

.rdai-method-canonical__core strong {
  margin-top: 10px;
  font-size: 24px;
  line-height: 1.25;
}

.rdai-method-canonical__core small {
  margin-top: 12px;
  color: var(--method-muted);
}

.rdai-method-canonical__items {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
}

.rdai-method-canonical__items span {
  display: grid;
  min-height: 62px;
  place-items: center;
  padding: 10px;
  border: 1px solid var(--method-line);
  border-radius: 10px;
  background: #fff;
  font-size: 13px;
  font-weight: 600;
  text-align: center;
}

.rdai-method-card p,
.rdai-method-proof p {
  margin-bottom: 0;
  color: var(--method-muted);
  font-size: 14px;
  line-height: 1.6;
}

.rdai-method-layers {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 14px;
  margin-top: 40px;
}

.rdai-method-layers article {
  position: relative;
  min-height: 190px;
  padding: 24px 20px;
  border: 1px solid var(--method-line);
  border-top: 3px solid var(--method-blue);
  border-radius: 12px;
  background: #fff;
}

.rdai-method-layers article:nth-child(2) {
  transform: translateY(10px);
}

.rdai-method-layers article:nth-child(3) {
  transform: translateY(20px);
}

.rdai-method-layers article:nth-child(4) {
  transform: translateY(30px);
}

.rdai-method-layers article:nth-child(5) {
  transform: translateY(40px);
}

.rdai-method-layers span {
  display: block;
  margin-bottom: 25px;
  color: var(--method-blue);
  font-size: 12px;
  font-weight: 700;
}

.rdai-method-layers p {
  margin-bottom: 0;
  color: var(--method-muted);
  font-size: 14px;
  line-height: 1.55;
}

.rdai-method-export {
  display: grid;
  grid-template-columns: minmax(250px, .7fr) minmax(0, 1.3fr);
  gap: 32px;
  align-items: center;
  margin-top: 40px;
}

.rdai-method-export__core {
  display: grid;
  min-height: 170px;
  place-items: center;
  padding: 30px;
  border: 2px solid var(--method-blue);
  border-radius: 12px;
  background: #fff;
  color: var(--method-blue);
  font-size: 20px;
  font-weight: 700;
  text-align: center;
}

.rdai-method-export__routes {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.rdai-method-export__routes span {
  position: relative;
  padding: 17px 18px 17px 39px;
  border: 1px solid var(--method-line);
  border-radius: 10px;
  background: #fff;
  font-size: 14px;
  font-weight: 600;
}

.rdai-method-export__routes span::before {
  position: absolute;
  left: 17px;
  color: var(--method-blue);
  content: "→";
  font-weight: 700;
}

.rdai-method-note {
  max-width: 850px;
  margin: 28px 0 0;
  padding: 15px 18px;
  border-left: 3px solid var(--method-blue);
  background: rgba(255, 255, 255, .75);
  color: #4b5563;
  font-size: 14px;
  line-height: 1.6;
}

.rdai-method-demo {
  margin-top: 40px;
  overflow: hidden;
  border: 1px solid var(--method-line);
  border-radius: 12px;
  background: #fff;
  box-shadow: 0 18px 50px rgba(17, 24, 39, .06);
}

.rdai-method-demo__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 9px;
  padding: 18px 20px;
  border-bottom: 1px solid var(--method-line);
  background: var(--method-pale);
}

.rdai-method-demo__meta span {
  padding: 6px 10px;
  border: 1px solid #bfdbfe;
  border-radius: 8px;
  background: #fff;
  color: var(--method-muted);
  font-size: 12px;
}

.rdai-method-demo__meta strong {
  color: var(--method-ink);
}

.rdai-method-confidence {
  color: #15803d !important;
}

.rdai-method-demo__panels {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.rdai-method-demo__panel {
  min-width: 0;
  padding: 25px;
  border-right: 1px solid var(--method-line);
}

.rdai-method-demo__panel:last-child {
  border-right: 0;
}

.rdai-method-demo__panel p,
.rdai-method-demo__panel small {
  color: var(--method-muted);
  line-height: 1.6;
}

.rdai-method-demo mark {
  padding: 1px 4px;
  border-radius: 3px;
  background: #fef3c7;
  color: var(--method-ink);
  font-weight: 700;
}

.rdai-method-demo pre {
  max-width: 100%;
  overflow: auto;
  margin: 0;
  padding: 15px;
  border-radius: 8px;
  background: #111827;
  color: #dbeafe;
  font-size: 12px;
  line-height: 1.55;
}

.rdai-method-tabs,
.rdai-method-filters {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.rdai-method-tabs button,
.rdai-method-filters button {
  min-height: 34px;
  padding: 7px 11px;
  border: 1px solid var(--method-line);
  border-radius: 8px;
  background: #fff;
  color: var(--method-muted);
  cursor: pointer;
  font-size: 12px;
  font-weight: 600;
}

.rdai-method-tabs button.is-active,
.rdai-method-filters button.is-active {
  border-color: var(--method-blue);
  background: var(--method-blue);
  color: #fff;
}

.rdai-method-view {
  margin-top: 16px;
  padding: 16px;
  border: 1px solid var(--method-line);
  border-radius: 8px;
  background: var(--method-pale);
}

.rdai-method-view p {
  margin: 7px 0 0;
  font-size: 13px;
}

.rdai-method-proof dl {
  margin: 18px 0;
}

.rdai-method-proof dl div {
  display: grid;
  grid-template-columns: 130px minmax(0, 1fr);
  gap: 14px;
  padding: 10px 0;
  border-bottom: 1px solid var(--method-line);
}

.rdai-method-proof dt {
  color: var(--method-muted);
  font-size: 13px;
}

.rdai-method-proof dd {
  min-width: 0;
  margin: 0;
  overflow-wrap: anywhere;
  font-size: 14px;
  font-weight: 600;
}

.rdai-method-one-many {
  display: grid;
  grid-template-columns: 145px minmax(0, 1fr);
  gap: 22px;
  align-items: center;
  margin: 22px 0;
}

.rdai-method-one-many > strong {
  padding: 18px;
  border: 2px solid var(--method-blue);
  border-radius: 10px;
  color: var(--method-blue);
  font-size: 13px;
  line-height: 1.45;
  text-align: center;
}

.rdai-method-one-many > div {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.rdai-method-one-many span {
  padding: 7px 10px;
  border: 1px solid var(--method-line);
  border-radius: 8px;
  background: var(--method-pale);
  font-size: 12px;
  font-weight: 700;
}

.rdai-method-filters {
  margin-top: 32px;
}

.rdai-method-table-wrap {
  overflow-x: auto;
  margin-top: 18px;
  border: 1px solid var(--method-line);
  border-radius: 12px;
  background: #fff;
}

.rdai-method-table-wrap table {
  width: 100%;
  min-width: 790px;
  border-collapse: collapse;
}

.rdai-method-table-wrap th,
.rdai-method-table-wrap td {
  padding: 15px 17px;
  border-bottom: 1px solid var(--method-line);
  text-align: left;
  vertical-align: top;
}

.rdai-method-table-wrap th {
  background: var(--method-pale);
  color: var(--method-muted);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .06em;
  text-transform: uppercase;
}

.rdai-method-table-wrap td {
  color: #4b5563;
  font-size: 14px;
}

.rdai-method-table-wrap tbody tr:last-child td {
  border-bottom: 0;
}

.rdai-method-status {
  display: inline-block;
  padding: 5px 8px;
  border-radius: 7px;
  background: #f0fdf4;
  color: #15803d;
  font-size: 11px;
  font-weight: 700;
}

.rdai-method-pilot {
  display: grid;
  grid-template-columns: minmax(0, 1.3fr) minmax(300px, .7fr);
  gap: 38px;
  align-items: stretch;
  margin-top: 38px;
}

.rdai-method-pilot > div,
.rdai-method-pilot aside {
  padding: 28px;
  border: 1px solid var(--method-line);
  border-radius: 12px;
  background: #fff;
}

.rdai-method-pilot aside {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  border-color: #93c5fd;
  background: var(--method-pale);
}

.rdai-method-pilot aside > span {
  color: var(--method-muted);
  font-size: 13px;
}

.rdai-method-pilot aside > strong {
  margin-top: 7px;
  font-size: 35px;
  line-height: 1.15;
  letter-spacing: -.035em;
}

.rdai-method-pilot aside > p {
  margin: 14px 0 20px;
  color: var(--method-muted);
  font-size: 14px;
  line-height: 1.55;
}

.rdai-method-faq {
  max-width: 900px;
  margin-top: 30px;
  border-top: 1px solid var(--method-line);
}

.rdai-method-faq details {
  border-bottom: 1px solid var(--method-line);
  background: transparent;
}

.rdai-method-faq summary {
  position: relative;
  padding: 20px 42px 20px 0;
  cursor: pointer;
  font-weight: 700;
  list-style: none;
}

.rdai-method-faq summary::-webkit-details-marker {
  display: none;
}

.rdai-method-faq summary::after {
  position: absolute;
  top: 19px;
  right: 5px;
  color: var(--method-blue);
  content: "+";
  font-size: 24px;
  font-weight: 400;
  line-height: 1;
}

.rdai-method-faq details[open] summary::after {
  content: "−";
}

.rdai-method-faq details p {
  max-width: 780px;
  margin: 0;
  padding: 0 0 20px;
  color: var(--method-muted);
  line-height: 1.65;
}

@media (max-width: 980px) {
  .rdai-method-hero__grid,
  .rdai-method-canonical,
  .rdai-method-export {
    grid-template-columns: 1fr;
  }

  .rdai-method-grid--4 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

  .rdai-method-layers article:nth-child(n) {
    transform: none;
  }

  .rdai-method-demo__panels {
    grid-template-columns: 1fr;
  }

  .rdai-method-demo__panel {
    border-right: 0;
    border-bottom: 1px solid var(--method-line);
  }

  .rdai-method-demo__panel:last-child {
    border-bottom: 0;
  }
}

@media (max-width: 760px) {
  .rdai-method-wrap {
    width: min(100% - 40px, 1152px);
  }

  .rdai-method-hero {
    padding: 74px 0 64px;
  }

  .rdai-method-section {
    padding: 64px 0;
  }

  .rdai-method h1 {
    font-size: clamp(34px, 10vw, 45px);
  }

  .rdai-method h2 {
    font-size: clamp(27px, 8vw, 35px);
  }

  .rdai-method-lead {
    font-size: 16px;
  }

  .rdai-method-compare,
  .rdai-method-grid--2,
  .rdai-method-grid--4,
  .rdai-method-atomic,
  .rdai-method-pilot {
    grid-template-columns: 1fr;
  }

  .rdai-method-atomic__arrow {
    transform: rotate(90deg);
  }

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

  .rdai-method-pilot aside > strong {
    font-size: 30px;
  }
}

@media (max-width: 540px) {
  .rdai-method-actions,
  .rdai-method-actions .rdai-method-btn,
  .rdai-method-pilot .rdai-method-btn {
    width: 100%;
  }

  .rdai-method-panel,
  .rdai-method-card,
  .rdai-method-proof,
  .rdai-method-source-card,
  .rdai-method-pilot > div,
  .rdai-method-pilot aside {
    padding: 21px;
  }

  .rdai-method-atoms,
  .rdai-method-layers,
  .rdai-method-export__routes {
    grid-template-columns: 1fr;
  }

  .rdai-method-one-many {
    grid-template-columns: 1fr;
  }

  .rdai-method-proof dl div {
    grid-template-columns: 1fr;
    gap: 3px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .rdai-method *,
  .rdai-method *::before,
  .rdai-method *::after {
    scroll-behavior: auto !important;
    transition-duration: .01ms !important;
    animation-duration: .01ms !important;
  }
}

/* Method workbench */
.rdai-method-workbench {
  margin-top: 40px;
  overflow: hidden;
  border: 1px solid var(--method-line);
  border-radius: 12px;
  background: #fff;
  box-shadow: 0 18px 50px rgba(17, 24, 39, .06);
}

.rdai-method-mode-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  padding: 16px 18px;
  border-bottom: 1px solid var(--method-line);
  background: var(--method-pale);
}

.rdai-method-mode-tabs button,
.rdai-method-output-tabs button {
  min-height: 36px;
  padding: 8px 12px;
  border: 1px solid var(--method-line);
  border-radius: 8px;
  background: #fff;
  color: var(--method-muted);
  cursor: pointer;
  font-size: 12px;
  font-weight: 700;
}

.rdai-method-mode-tabs button.is-active,
.rdai-method-output-tabs button.is-active {
  border-color: var(--method-blue);
  background: var(--method-blue);
  color: #fff;
}

.rdai-method-mode-panel {
  padding: 0;
}

.rdai-method-mode-panel[hidden],
.rdai-method-reference[hidden] {
  display: none !important;
}

.rdai-method-record {
  overflow: hidden;
  margin: 0;
  border: 1px solid var(--method-line);
  border-radius: 8px;
}

.rdai-method-record div {
  display: grid;
  grid-template-columns: minmax(110px, .8fr) minmax(0, 1.2fr);
  gap: 10px;
  padding: 9px 12px;
  border-bottom: 1px solid var(--method-line);
}

.rdai-method-record div:last-child {
  border-bottom: 0;
}

.rdai-method-record dt {
  color: var(--method-muted);
  font: 12px/1.4 ui-monospace, SFMono-Regular, Menlo, monospace;
}

.rdai-method-record dd {
  margin: 0;
  color: var(--method-ink);
  font-size: 13px;
  font-weight: 700;
}

.rdai-method-quote {
  min-height: 120px;
  padding: 18px;
  border-left: 3px solid var(--method-blue);
  background: #f8fafc;
}

.rdai-method-text-link {
  padding: 0;
  border: 0;
  background: transparent;
  color: var(--method-blue);
  cursor: pointer;
  font-size: 13px;
  font-weight: 700;
  text-align: left;
}

.rdai-method-output-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
}

.rdai-method-output {
  min-height: 145px;
  margin-top: 16px;
  padding: 17px;
  border: 1px solid var(--method-line);
  border-radius: 8px;
  background: var(--method-pale);
}

.rdai-method-output__type {
  display: block;
  margin-bottom: 10px;
  color: var(--method-blue);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .07em;
  text-transform: uppercase;
}

.rdai-method-output p,
.rdai-method-output pre {
  margin: 8px 0 0;
}

.rdai-method-output pre {
  overflow: auto;
  color: var(--method-ink);
  font-size: 12px;
  white-space: pre-wrap;
}

.rdai-method-reference {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 20px;
  margin: 0 24px 24px;
  padding: 20px;
  border: 1px solid #f1d09a;
  border-radius: 10px;
  background: #fffbeb;
}

.rdai-method-reference h3,
.rdai-method-reference p {
  margin-bottom: 6px;
}

.rdai-method-reference button {
  border: 0;
  background: transparent;
  color: var(--method-muted);
  cursor: pointer;
  font-size: 25px;
  line-height: 1;
}

.rdai-method-graph-intro {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(280px, .8fr);
  gap: 32px;
  align-items: end;
  padding: 28px;
  border-bottom: 1px solid var(--method-line);
}

.rdai-method-graph-intro p {
  margin: 0;
  color: var(--method-muted);
  font-size: 14px;
}

.rdai-method-graph {
  display: grid;
  grid-template-columns: minmax(230px, .8fr) 110px minmax(0, 1.2fr);
  gap: 0;
  align-items: center;
  min-height: 390px;
  padding: 34px;
  background:
    linear-gradient(rgba(219, 234, 254, .32) 1px, transparent 1px),
    linear-gradient(90deg, rgba(219, 234, 254, .32) 1px, transparent 1px),
    #fbfdff;
  background-size: 28px 28px;
}

.rdai-method-graph__references,
.rdai-method-graph__cards {
  display: grid;
  gap: 12px;
}

.rdai-method-graph-node,
.rdai-method-graph__cards button {
  padding: 14px 16px;
  border: 1px solid var(--method-line);
  border-radius: 9px;
  background: #fff;
  color: var(--method-ink);
  cursor: pointer;
  text-align: left;
  box-shadow: 0 5px 16px rgba(17, 24, 39, .04);
}

.rdai-method-graph-node span,
.rdai-method-graph-node strong,
.rdai-method-graph-node small {
  display: block;
}

.rdai-method-graph-node span,
.rdai-method-graph-node small {
  color: var(--method-muted);
  font-size: 11px;
}

.rdai-method-graph-node strong {
  margin: 3px 0;
  font-size: 13px;
}

.rdai-method-graph-node--active,
.rdai-method-graph__cards button.is-active {
  border-color: var(--method-blue);
  background: var(--method-pale);
}

.rdai-method-graph__connector {
  position: relative;
  height: 100%;
  min-height: 250px;
}

.rdai-method-graph__connector::before {
  position: absolute;
  top: 50%;
  right: 0;
  left: 0;
  height: 2px;
  background: #93c5fd;
  content: "";
}

.rdai-method-graph__connector::after {
  position: absolute;
  top: calc(50% - 5px);
  right: 0;
  border-width: 6px 0 6px 9px;
  border-style: solid;
  border-color: transparent transparent transparent var(--method-blue);
  content: "";
}

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

.rdai-method-graph__cards button {
  position: relative;
  text-align: center;
  font-size: 13px;
  font-weight: 700;
}

.rdai-method-graph__cards button::before {
  position: absolute;
  top: 50%;
  left: -18px;
  width: 18px;
  height: 1px;
  background: #bfdbfe;
  content: "";
}

.rdai-method-mode-panel > .rdai-method-note {
  margin-right: 28px;
  margin-bottom: 28px;
  margin-left: 28px;
}

.rdai-method-audit-summary {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
  padding: 28px;
}

.rdai-method-audit-summary article {
  display: grid;
  grid-template-columns: 38px minmax(0, 1fr);
  gap: 13px;
  padding: 19px;
  border: 1px solid var(--method-line);
  border-radius: 10px;
  background: #fff;
}

.rdai-method-audit-summary h3 {
  font-size: 15px;
}

.rdai-method-audit-summary p {
  margin: 0;
  color: var(--method-muted);
  font-size: 13px;
  line-height: 1.55;
}

.rdai-method-audit-icon {
  display: grid;
  width: 34px;
  height: 34px;
  place-items: center;
  border-radius: 8px;
  font-weight: 800;
}

.rdai-method-audit-icon--ok {
  background: #f0fdf4;
  color: #15803d;
}

.rdai-method-audit-icon--warn {
  background: #fffbeb;
  color: #b45309;
}

.rdai-method-audit-details {
  margin: 0 28px;
  border: 1px solid var(--method-line);
  border-radius: 10px;
  background: #fff;
}

.rdai-method-audit-details summary {
  padding: 17px 19px;
  cursor: pointer;
  color: var(--method-blue);
  font-size: 14px;
  font-weight: 700;
}

.rdai-method-audit-table-wrap {
  overflow-x: auto;
  border-top: 1px solid var(--method-line);
}

.rdai-method-audit-table-wrap table {
  width: 100%;
  min-width: 760px;
  border-collapse: collapse;
}

.rdai-method-audit-table-wrap th,
.rdai-method-audit-table-wrap td {
  padding: 14px 16px;
  border-bottom: 1px solid var(--method-line);
  text-align: left;
  vertical-align: top;
}

.rdai-method-audit-table-wrap th {
  background: var(--method-pale);
  color: var(--method-muted);
  font-size: 11px;
  letter-spacing: .06em;
  text-transform: uppercase;
}

.rdai-method-audit-table-wrap td {
  color: #4b5563;
  font-size: 13px;
}

.rdai-method-audit-table-wrap code {
  color: var(--method-ink);
  overflow-wrap: anywhere;
}

@media (max-width: 900px) {
  .rdai-method-graph-intro,
  .rdai-method-graph {
    grid-template-columns: 1fr;
  }

  .rdai-method-graph {
    gap: 22px;
  }

  .rdai-method-graph__connector {
    min-height: 45px;
  }

  .rdai-method-graph__connector::before {
    top: 0;
    bottom: 0;
    left: 50%;
    width: 2px;
    height: auto;
  }

  .rdai-method-graph__connector::after {
    top: auto;
    right: auto;
    bottom: 0;
    left: calc(50% - 5px);
    border-width: 9px 6px 0;
    border-color: var(--method-blue) transparent transparent;
  }

  .rdai-method-graph__cards button::before {
    display: none;
  }

  .rdai-method-audit-summary {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 560px) {
  .rdai-method-mode-tabs button {
    flex: 1 1 100%;
  }

  .rdai-method-output-tabs button {
    flex: 1 1 calc(50% - 7px);
  }

  .rdai-method-graph,
  .rdai-method-graph-intro,
  .rdai-method-audit-summary {
    padding: 20px;
  }

  .rdai-method-graph__cards {
    grid-template-columns: 1fr;
  }

  .rdai-method-reference,
  .rdai-method-audit-details,
  .rdai-method-mode-panel > .rdai-method-note {
    margin-right: 20px;
    margin-left: 20px;
  }
}

/* Separate provenance for operation and engineering value */
.rdai-method-record__reference {
  background: #eff6ff;
}

.rdai-method-record__reference dt,
.rdai-method-record__reference dd {
  color: #1d4ed8;
}

.rdai-method-provenance-note {
  margin: 18px 24px 24px;
  padding: 14px 17px;
  border: 1px solid #bfdbfe;
  border-left: 3px solid #2563eb;
  border-radius: 0 10px 10px 0;
  background: #f8fbff;
  color: #1e3a5f;
  font-size: 13px;
  font-weight: 600;
  line-height: 1.55;
}

/* Atomic fact trace */
.rdai-method-fact {
  display: inline;
  padding: 0;
  border: 0;
  border-bottom: 1px dotted currentColor;
  background: transparent;
  color: inherit;
  cursor: pointer;
  font: inherit;
  font-weight: 700;
  line-height: inherit;
}

.rdai-method-fact:hover,
.rdai-method-fact:focus-visible {
  color: var(--method-blue);
  border-bottom-style: solid;
}

.rdai-method-fact--mark {
  padding: 1px 4px;
  border: 0;
  border-radius: 3px;
  background: #fef3c7;
  color: var(--method-ink);
}

.rdai-method-fact.is-traced {
  border-color: var(--method-blue);
  background: #dbeafe;
  color: #1d4ed8;
  box-shadow: 0 0 0 3px rgba(37, 99, 235, .12);
}

.rdai-method-record [data-record-fact].is-traced {
  position: relative;
  z-index: 1;
  background: #eff6ff;
  box-shadow: inset 3px 0 0 var(--method-blue);
}

.rdai-method-trace {
  margin: 0 24px 24px;
  padding: 20px;
  border: 1px solid #93c5fd;
  border-radius: 10px;
  background: #f8fbff;
}

.rdai-method-trace__head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 20px;
}

.rdai-method-trace__head h3 {
  margin-bottom: 0;
}

.rdai-method-trace__head button {
  border: 0;
  background: transparent;
  color: var(--method-muted);
  cursor: pointer;
  font-size: 25px;
  line-height: 1;
}

.rdai-method-trace__path {
  display: flex;
  flex-wrap: wrap;
  gap: 9px;
  align-items: center;
  margin: 18px 0 0;
  padding: 0;
  list-style: none;
}

.rdai-method-trace__path li {
  position: relative;
  padding: 9px 12px;
  border: 1px solid var(--method-line);
  border-radius: 8px;
  background: #fff;
  color: #4b5563;
  font-size: 12px;
  font-weight: 600;
  line-height: 1.45;
}

.rdai-method-trace__path li:not(:last-child)::after {
  position: absolute;
  top: 50%;
  right: -9px;
  z-index: 2;
  color: var(--method-blue);
  content: "→";
  transform: translateY(-50%);
}

.rdai-method-trace__path li:first-child {
  border-color: var(--method-blue);
  color: var(--method-blue);
}

.rdai-method-trace__path li:last-child {
  border-color: #86efac;
  background: #f0fdf4;
  color: #15803d;
}

@media (max-width: 620px) {
  .rdai-method-trace,
  .rdai-method-reference {
    margin-right: 20px;
    margin-left: 20px;
  }

  .rdai-method-trace__path {
    display: grid;
  }

  .rdai-method-trace__path li:not(:last-child)::after {
    top: auto;
    right: auto;
    bottom: -12px;
    left: 50%;
    content: "↓";
    transform: translateX(-50%);
  }
}

/* PC3000 registry: card-like rows with visible gaps */
.rdai-method-registry .rdai-method-table-wrap {
  overflow-x: auto !important;
  border: 0 !important;
  background: transparent !important;
}

.rdai-method-registry table {
  border-collapse: separate !important;
  border-spacing: 0 14px !important;
  background: transparent !important;
}

.rdai-method-registry thead th {
  border-bottom: 0 !important;
}

.rdai-method-registry tbody td {
  padding-top: 18px !important;
  padding-bottom: 18px !important;
  line-height: 1.55 !important;
  border-top: 1px solid #dbe3ee !important;
  border-bottom: 1px solid #dbe3ee !important;
  background-color: #ffffff !important;
}

.rdai-method-registry tbody td:first-child {
  border-left: 1px solid #dbe3ee !important;
  border-radius: 12px 0 0 12px !important;
}

.rdai-method-registry tbody td:last-child {
  border-right: 1px solid #dbe3ee !important;
  border-radius: 0 12px 12px 0 !important;
}

.rdai-method-registry tbody tr:hover td,
.rdai-method-registry tbody tr:focus-visible td {
  background-color: #f8fbff !important;
}

.rdai-method-registry tbody tr.is-selected td,
.rdai-method-registry tbody tr[aria-selected="true"] td {
  border-color: #93c5fd !important;
  background-color: #eff6ff !important;
}

/* Registry toolbar: spacing between filter rows and controls */
.rdai-method-registry [data-registry-filters],
.rdai-method-registry .rdai-method-registry__filters,
.rdai-method-registry .rdai-method-filter-list {
  display: flex !important;
  flex-wrap: wrap !important;
  align-items: center !important;
  column-gap: 10px !important;
  row-gap: 14px !important;
}

.rdai-method-registry [data-registry-problem-toggle],
.rdai-method-registry .rdai-method-registry__problem-toggle,
.rdai-method-registry .rdai-method-problem-toggle {
  margin-top: 18px !important;
}

.rdai-method-registry [data-registry-summary],
.rdai-method-registry .rdai-method-registry__summary,
.rdai-method-registry .rdai-method-registry__status {
  display: block !important;
  margin-top: 18px !important;
  line-height: 1.6 !important;
}

/* Exact PC3000 filter controls */
.rdai-method-registry button[data-interval] {
  margin-right: 10px !important;
  margin-bottom: 12px !important;
}

.rdai-method-registry button[data-interval]:last-child {
  margin-right: 0 !important;
}

.rdai-method-registry input[type="checkbox"] {
  margin-right: 8px !important;
}

.rdai-method-registry button[data-interval] ~ label,
.rdai-method-registry button[data-interval] ~ span {
  margin-top: 14px !important;
}

.rdai-method-registry [aria-live="polite"] {
  display: block !important;
  margin-top: 16px !important;
  word-spacing: 8px !important;
  line-height: 1.7 !important;
}

/* Gap between interval buttons and verification toggle */
.rdai-method-registry [data-registry-problem-toggle] {
  display: flex !important;
  width: fit-content;
  margin-top: 12px !important;
}

/* Verification toggle below interval buttons */
.rdai-method-registry .rdai-method-registry__toggle {
  display: flex !important;
  width: fit-content !important;
  margin-top: 18px !important;
}

/* Registry review explanation */
.rdai-method-registry .rdai-method-review-reason {
  min-width: 310px;
  max-width: 440px;
  color: #475569;
  font-size: 0.86rem;
  line-height: 1.55;
}

.rdai-method-registry tr.is-selected .rdai-method-review-reason {
  color: #1e3a5f;
}

@media (max-width: 900px) {
  .rdai-method-registry .rdai-method-review-reason {
    min-width: 270px;
  }
}

/* Focused engineering review message */
.rdai-method-review-focus {
  position: relative;
  margin-top: 28px;
  padding: clamp(22px, 3vw, 32px);
  overflow: hidden;
  border: 1px solid rgba(37, 99, 235, 0.22);
  border-radius: 20px;
  background: linear-gradient(
    135deg,
    rgba(37, 99, 235, 0.10),
    rgba(37, 99, 235, 0.03)
  );
}

.rdai-method-review-focus::before {
  position: absolute;
  inset: 0 auto 0 0;
  width: 5px;
  background: #2563eb;
  content: "";
}

.rdai-method-review-focus__eyebrow {
  margin: 0 0 8px;
  color: #2563eb;
  font-size: 0.75rem;
  font-weight: 800;
  letter-spacing: 0.09em;
  text-transform: uppercase;
}

.rdai-method-review-focus h3 {
  margin: 0 0 14px;
  color: #111827;
  font-size: clamp(1.35rem, 2.5vw, 1.85rem);
  line-height: 1.15;
  letter-spacing: -0.035em;
}

.rdai-method-review-focus > p {
  max-width: 850px;
}

.rdai-method-review-focus > p:not(
  .rdai-method-review-focus__eyebrow
):not(
  .rdai-method-review-focus__result
) {
  margin: 10px 0 0;
  color: #475569;
  line-height: 1.65;
}

.rdai-method-review-focus__result {
  margin: 18px 0 0;
  padding-top: 16px;
  border-top: 1px solid rgba(37, 99, 235, 0.18);
  color: #1e293b;
  line-height: 1.6;
}

.rdai-method-review-focus__result strong {
  color: #2563eb;
}

/* Registry result component */
.rdai-method-result {
  margin-top: 34px;
  padding: clamp(22px, 3vw, 34px);
  border: 1px solid #cbd5e1;
  border-radius: 24px;
  background: #fff;
  box-shadow: 0 24px 70px rgba(15, 23, 42, 0.07);
  scroll-margin-top: 96px;
}

.rdai-method-result__heading {
  display: flex;
  justify-content: space-between;
  gap: 24px;
}

.rdai-method-result__heading h3 {
  margin: 6px 0 10px;
  font-size: clamp(1.55rem, 3vw, 2.3rem);
  line-height: 1.1;
  letter-spacing: -0.04em;
}

.rdai-method-result__heading p {
  max-width: 720px;
  color: #64748b;
  line-height: 1.6;
}

.rdai-method-result__selected {
  flex: 0 0 auto;
  height: fit-content;
  margin: 0;
  padding: 12px 16px;
  border: 1px solid #bfdbfe;
  border-radius: 14px;
  background: #eff6ff;
}

.rdai-method-result__selected span,
.rdai-method-result__qa span {
  display: block;
  margin-bottom: 4px;
  color: #64748b;
  font-size: 0.7rem;
  font-weight: 800;
  letter-spacing: 0.07em;
  text-transform: uppercase;
}

.rdai-method-result__selected strong {
  color: #1d4ed8;
  font-size: 1.12rem;
}

.rdai-method-result__tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 24px;
  padding-bottom: 14px;
  border-bottom: 1px solid #e2e8f0;
}

.rdai-method-result__tabs button {
  padding: 9px 15px;
  border: 1px solid #cbd5e1;
  border-radius: 999px;
  background: #fff;
  color: #475569;
  font: inherit;
  font-size: 0.88rem;
  font-weight: 700;
  cursor: pointer;
}

.rdai-method-result__tabs button:hover,
.rdai-method-result__tabs button.is-active {
  border-color: #2563eb;
  background: #2563eb;
  color: #fff;
}

.rdai-method-result__content {
  margin-top: 20px;
  overflow-x: auto;
}

.rdai-method-result__content [hidden] {
  display: none !important;
}

.rdai-method-result__table {
  width: 100%;
  min-width: 760px;
  border-collapse: collapse;
}

.rdai-method-result__table th,
.rdai-method-result__table td {
  padding: 13px 14px;
  border: 1px solid #e2e8f0;
  text-align: left;
  vertical-align: top;
  line-height: 1.5;
}

.rdai-method-result__table th {
  background: #f8fafc;
  color: #475569;
  font-size: 0.74rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.rdai-method-result__table td {
  color: #1e293b;
  font-size: 0.87rem;
}

.rdai-method-result__meta {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 1px;
  margin-bottom: 18px;
  overflow: hidden;
  border: 1px solid #e2e8f0;
  border-radius: 14px;
  background: #e2e8f0;
}

.rdai-method-result__meta > div {
  padding: 12px;
  background: #fff;
}

.rdai-method-result__meta span {
  display: block;
  margin-bottom: 4px;
  color: #64748b;
  font-size: 0.68rem;
  font-weight: 800;
  text-transform: uppercase;
}

.rdai-method-result__code {
  margin: 0;
  padding: 20px;
  overflow: auto;
  border-radius: 14px;
  background: #0f172a;
  color: #dbeafe;
  font: 0.82rem/1.65 ui-monospace, monospace;
  white-space: pre;
}

.rdai-method-result__qa {
  display: grid;
  grid-template-columns: 150px 180px 1fr;
  gap: 18px;
  margin-top: 22px;
  padding: 18px;
  border: 1px solid #bfdbfe;
  border-radius: 16px;
  background: #f8fbff;
}

.rdai-method-result__qa p {
  margin: 0;
  color: #475569;
  line-height: 1.55;
}

.rdai-method-result__qa strong {
  color: #1e3a8a;
}

.rdai-method-result__message {
  margin: 24px 0 0;
  padding-top: 20px;
  border-top: 1px solid #e2e8f0;
  color: #1d4ed8;
  font-weight: 800;
  text-align: center;
}

@media (max-width: 760px) {
  .rdai-method-result__heading {
    display: block;
  }

  .rdai-method-result__selected {
    width: fit-content;
    margin-top: 16px;
  }

  .rdai-method-result__meta {
    grid-template-columns: 1fr 1fr;
  }

  .rdai-method-result__qa {
    grid-template-columns: 1fr;
  }
}

/* Customer TK draft groups */
.rdai-method-result__group + .rdai-method-result__group {
  margin-top: 28px;
  padding-top: 26px;
  border-top: 1px solid #e2e8f0;
}

.rdai-method-result__group-title {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  margin-bottom: 14px;
}

.rdai-method-result__group-title > div {
  display: flex;
  align-items: center;
  gap: 10px;
}

.rdai-method-result__group-title > div > span {
  display: grid;
  width: 30px;
  height: 30px;
  place-items: center;
  border-radius: 50%;
  background: #eff6ff;
  color: #2563eb;
  font-size: 0.72rem;
  font-weight: 800;
}

.rdai-method-result__group-title h4 {
  margin: 0;
  color: #172033;
  font-size: 1.05rem;
  letter-spacing: -0.02em;
}

.rdai-method-result__badge {
  display: inline-flex;
  align-items: center;
  width: fit-content;
  padding: 5px 9px;
  border-radius: 999px;
  font-size: 0.7rem;
  font-weight: 800;
  line-height: 1.3;
}

.rdai-method-result__badge--extracted {
  background: #dcfce7;
  color: #166534;
}

.rdai-method-result__badge--example {
  background: #dbeafe;
  color: #1d4ed8;
}

.rdai-method-result__badge--customer {
  background: #ffedd5;
  color: #9a3412;
}

.rdai-method-result__warning {
  margin: 0 0 14px;
  padding: 13px 15px;
  border: 1px solid #bfdbfe;
  border-radius: 12px;
  background: #eff6ff;
  color: #334155;
  font-size: 0.85rem;
  line-height: 1.55;
}

.rdai-method-result__warning strong {
  color: #1d4ed8;
}

.rdai-method-result__table--fields {
  min-width: 680px;
}

.rdai-method-result__table--fields th:first-child {
  width: 22%;
}

.rdai-method-result__table--fields th:nth-child(2) {
  width: 56%;
}

.rdai-method-result__table--fields th:last-child {
  width: 22%;
}

.rdai-method-result__requirements {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}

.rdai-method-result__requirements > div {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 13px 14px;
  border: 1px solid #fed7aa;
  border-radius: 12px;
  background: #fffaf5;
}

.rdai-method-result__requirements strong {
  color: #7c2d12;
  font-size: 0.83rem;
}

.rdai-method-result__requirements span {
  color: #64748b;
  font-size: 0.8rem;
  line-height: 1.45;
}

@media (max-width: 680px) {
  .rdai-method-result__group-title {
    align-items: flex-start;
    flex-direction: column;
  }

  .rdai-method-result__requirements {
    grid-template-columns: 1fr;
  }
}

/* Excel result table */
.rdai-method-result__table--excel {
  min-width: 2500px;
}

.rdai-method-result__table--excel th,
.rdai-method-result__table--excel td {
  min-width: 130px;
}

.rdai-method-result__table--excel th:nth-child(6),
.rdai-method-result__table--excel td:nth-child(6) {
  min-width: 240px;
}

.rdai-method-result__table--excel th:nth-child(7),
.rdai-method-result__table--excel td:nth-child(7),
.rdai-method-result__table--excel th:nth-child(8),
.rdai-method-result__table--excel td:nth-child(8),
.rdai-method-result__table--excel th:nth-child(17),
.rdai-method-result__table--excel td:nth-child(17) {
  min-width: 340px;
}

/* Maintenance package assignment note */
.rdai-method-result__assignment-note {
  display: grid;
  gap: 6px;
  margin-top: 18px;
  padding: 16px 18px;
  border: 1px solid #bfdbfe;
  border-radius: 14px;
  background: #eff6ff;
}

.rdai-method-result__assignment-note strong {
  color: #1e3a8a;
}

.rdai-method-result__assignment-note span {
  max-width: 850px;
  color: #475569;
  font-size: 0.88rem;
  line-height: 1.55;
}

.rdai-method-result__assignment-note em {
  color: #2563eb;
  font-size: 0.82rem;
  font-style: normal;
  font-weight: 800;
}

/* Readable Excel columns */
.rdai-method-result__table--excel {
  border-collapse: separate !important;
  border-spacing: 0 !important;
}

.rdai-method-result__table--excel th {
  min-width: 150px;
  padding: 14px 16px !important;
  border-right: 1px solid #cbd5e1 !important;
  white-space: normal;
  line-height: 1.35;
}

.rdai-method-result__table--excel td {
  min-width: 150px;
  padding: 16px !important;
  border-right: 1px solid #e2e8f0 !important;
  white-space: normal;
  line-height: 1.55;
}

.rdai-method-result__table--excel th:nth-child(6),
.rdai-method-result__table--excel td:nth-child(6),
.rdai-method-result__table--excel th:nth-child(10),
.rdai-method-result__table--excel td:nth-child(10) {
  min-width: 260px;
}

.rdai-method-result__table--excel th:nth-child(11),
.rdai-method-result__table--excel td:nth-child(11),
.rdai-method-result__table--excel th:nth-child(12),
.rdai-method-result__table--excel td:nth-child(12),
.rdai-method-result__table--excel th:nth-child(21),
.rdai-method-result__table--excel td:nth-child(21) {
  min-width: 380px;
}

/* Static source-to-card map */
.rdai-method-lineage {
  display: grid;
  gap: 18px;
  padding: 28px;
  background: #fbfdff;
}

.rdai-method-lineage__formula {
  display: grid;
  grid-template-columns:
    minmax(170px, .7fr)
    28px
    minmax(240px, 1.2fr)
    28px
    minmax(150px, .6fr);
  align-items: center;
  padding: 13px 18px;
  border: 1px solid #bfdbfe;
  border-radius: 10px;
  background: #eff6ff;
  color: #1d4ed8;
  font-size: 11px;
  font-weight: 800;
  letter-spacing: .06em;
  text-align: center;
  text-transform: uppercase;
}

.rdai-method-lineage__formula b {
  font-size: 18px;
}

.rdai-method-lineage__example {
  display: grid;
  grid-template-columns: minmax(220px, .65fr) minmax(0, 1.6fr);
  overflow: hidden;
  border: 1px solid var(--method-line);
  border-radius: 12px;
  background: #fff;
}

.rdai-method-lineage__source {
  padding: 22px;
  border-right: 1px solid var(--method-line);
  background: var(--method-pale);
}

.rdai-method-lineage__source > span {
  display: block;
  margin-bottom: 8px;
  color: var(--method-blue);
  font-size: 10px;
  font-weight: 800;
  letter-spacing: .08em;
  text-transform: uppercase;
}

.rdai-method-lineage__source strong {
  display: block;
  color: var(--method-ink);
  font-size: 19px;
  line-height: 1.3;
}

.rdai-method-lineage__source p {
  margin: 7px 0 0;
  color: #475569;
  font-size: 14px;
  line-height: 1.5;
}

.rdai-method-lineage__source small {
  display: block;
  margin-top: 15px;
  color: var(--method-muted);
  font-size: 12px;
}

.rdai-method-lineage__relations {
  display: grid;
  align-content: start;
}

.rdai-method-lineage__relation {
  display: grid;
  grid-template-columns: minmax(220px, 1fr) 30px minmax(125px, .55fr);
  gap: 10px;
  align-items: center;
  min-height: 58px;
  padding: 13px 18px;
  border-bottom: 1px solid var(--method-line);
}

.rdai-method-lineage__relation:last-child {
  border-bottom: 0;
}

.rdai-method-lineage__relation > strong {
  color: var(--method-ink);
  font-size: 13px;
  line-height: 1.5;
}

.rdai-method-lineage__relation > span {
  color: var(--method-blue);
  font-size: 18px;
  font-weight: 800;
  text-align: center;
}

.rdai-method-lineage__relation > div {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.rdai-method-lineage__relation code {
  display: inline-flex;
  align-items: center;
  min-height: 28px;
  padding: 4px 9px;
  border: 1px solid #bfdbfe;
  border-radius: 999px;
  background: #eff6ff;
  color: #1d4ed8;
  font: 700 12px/1.2 ui-monospace, SFMono-Regular, Menlo, monospace;
}

@media (max-width: 900px) {
  .rdai-method-lineage__formula {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 8px;
  }

  .rdai-method-lineage__example {
    grid-template-columns: 1fr;
  }

  .rdai-method-lineage__source {
    border-right: 0;
    border-bottom: 1px solid var(--method-line);
  }
}

@media (max-width: 620px) {
  .rdai-method-lineage {
    padding: 20px;
  }

  .rdai-method-lineage__formula {
    align-items: stretch;
    flex-direction: column;
  }

  .rdai-method-lineage__formula b {
    transform: rotate(90deg);
  }

  .rdai-method-lineage__relation {
    grid-template-columns: 1fr;
    gap: 7px;
  }

  .rdai-method-lineage__relation > span {
    transform: rotate(90deg);
    line-height: 1;
  }
}

/* Canonical model flow */
.rdai-method-model-flow {
  display: grid;
  grid-template-columns:
    minmax(0, .9fr)
    40px
    minmax(280px, 1.15fr)
    40px
    minmax(0, .9fr);
  gap: 16px;
  align-items: stretch;
  margin-top: 40px;
}

.rdai-method-model-flow__column,
.rdai-method-model-flow__core {
  padding: 24px;
  border: 1px solid var(--method-line);
  border-radius: 12px;
  background: #fff;
}

.rdai-method-model-flow__core {
  border: 2px solid var(--method-blue);
  background: linear-gradient(180deg, #fff, #f8fbff);
  box-shadow: 0 16px 42px rgba(37, 99, 235, .1);
}

.rdai-method-model-flow__label {
  display: block;
  margin-bottom: 10px;
  color: var(--method-blue);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: .08em;
  text-transform: uppercase;
}

.rdai-method-model-flow__column h3,
.rdai-method-model-flow__core h3 {
  min-height: 49px;
  margin-bottom: 18px;
}

.rdai-method-model-flow__list,
.rdai-method-model-flow__core-items {
  display: grid;
  gap: 8px;
}

.rdai-method-model-flow__list span,
.rdai-method-model-flow__core-items span {
  padding: 10px 12px;
  border: 1px solid var(--method-line);
  border-radius: 8px;
  background: #f8fafc;
  color: #334155;
  font-size: 13px;
  font-weight: 600;
  line-height: 1.4;
}

.rdai-method-model-flow__core-items span {
  border-color: #bfdbfe;
  background: var(--method-pale);
  color: #1e3a8a;
}

.rdai-method-model-flow__core p {
  margin: 18px 0 0;
  color: var(--method-muted);
  font-size: 13px;
  line-height: 1.55;
}

.rdai-method-model-flow__arrow {
  display: grid;
  place-items: center;
  color: var(--method-blue);
  font-size: 28px;
  font-weight: 800;
}

.rdai-method-model-flow__recipients {
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  gap: 8px;
  margin-top: 14px;
}

.rdai-method-model-flow__recipients span {
  padding: 9px 10px;
  border: 1px solid #bfdbfe;
  border-radius: 999px;
  background: #fff;
  color: #1d4ed8;
  font-size: 11px;
  font-weight: 700;
  text-align: center;
}

.rdai-method-model-benefits {
  margin-top: 24px;
}

.rdai-method-model-benefits__index {
  display: block;
  margin-bottom: 20px;
  color: var(--method-blue);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: .08em;
}

@media (max-width: 980px) {
  .rdai-method-model-flow {
    grid-template-columns: 1fr;
  }

  .rdai-method-model-flow__arrow {
    min-height: 28px;
    transform: rotate(90deg);
  }

  .rdai-method-model-flow__column h3,
  .rdai-method-model-flow__core h3 {
    min-height: 0;
  }

  .rdai-method-model-flow__recipients {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (max-width: 620px) {
  .rdai-method-model-flow__column,
  .rdai-method-model-flow__core {
    padding: 20px;
  }

  .rdai-method-model-flow__recipients {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

/* Canonical model relations */
.rdai-canon{margin-top:48px}
.rdai-canon__core{width:min(620px,100%);margin:0 auto;padding:24px;border:1px solid #2563eb;border-radius:12px;background:#dbeafe;text-align:center}
.rdai-canon__label{display:block;margin-bottom:10px;color:#2563eb;font-size:13px;font-weight:600;letter-spacing:.08em;text-transform:uppercase}
.rdai-canon__core h3{margin:0 0 8px;font-size:22px;font-weight:700;line-height:1.3}
.rdai-canon__core p{margin:0;color:#6b7280;font-size:13px;line-height:1.5}
.rdai-canon__trunk{width:1px;height:32px;margin:0 auto;background:#2563eb}
.rdai-canon__branch{position:relative;height:24px;margin:0 12.5%}
.rdai-canon__branch::before{content:"";position:absolute;top:0;left:0;right:0;height:1px;background:#e5e7eb}
.rdai-canon__branch i{position:absolute;top:0;width:1px;height:24px;background:#e5e7eb}
.rdai-canon__branch i:nth-child(1){left:0}
.rdai-canon__branch i:nth-child(2){left:33.33%}
.rdai-canon__branch i:nth-child(3){left:66.66%}
.rdai-canon__branch i:nth-child(4){right:0}
.rdai-canon__grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:24px}
.rdai-canon__grid--benefits{margin-top:32px}
.rdai-canon-card{padding:24px;border:1px solid #e5e7eb;border-radius:12px;background:#fff;transition:box-shadow .2s ease,transform .2s ease}
.rdai-canon-card:hover{box-shadow:0 4px 20px rgba(37,99,235,.08);transform:translateY(-2px)}
.rdai-canon-card--accent{border-color:#2563eb}
.rdai-canon-card__relation{display:block;margin-bottom:12px;color:#2563eb;font-size:13px;font-weight:600;letter-spacing:.08em;text-transform:uppercase}
.rdai-canon-card h3{margin:0 0 16px;font-size:18px;font-weight:600;line-height:1.4}
.rdai-canon-card__chips{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:12px}
.rdai-canon-card__chips span{padding:6px 10px;border:1px solid #e5e7eb;border-radius:8px;background:#f8faff;font-size:13px;font-weight:600;line-height:1.4}
.rdai-canon-card--accent .rdai-canon-card__chips span{border-color:#2563eb;background:#dbeafe;color:#1d4ed8}
.rdai-canon-card__note{margin:0;color:#6b7280;font-size:13px;line-height:1.5}
.rdai-canon__chain{display:flex;flex-wrap:wrap;align-items:center;justify-content:center;gap:8px;margin-top:32px;padding:24px;border:1px solid #e5e7eb;border-radius:12px;background:#eff6ff}
.rdai-canon__chain span{padding:8px 12px;border:1px solid #e5e7eb;border-radius:8px;background:#fff;font-size:13px;font-weight:600}
.rdai-canon__chain b{color:#2563eb;font-size:16px;font-weight:700}
.rdai-canon__chain-note{margin:12px 0 0;color:#6b7280;font-size:13px;line-height:1.5;text-align:center}
@media (max-width:900px){.rdai-canon__branch{display:none}.rdai-canon__grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:20px;margin-top:20px}}
@media (max-width:600px){.rdai-canon__grid{grid-template-columns:1fr}.rdai-canon__chain{justify-content:flex-start}.rdai-canon__chain b{display:none}.rdai-canon__chain span{width:100%}}
@media (prefers-reduced-motion:reduce){.rdai-canon-card{transition:none}.rdai-canon-card:hover{transform:none}}

/* Document fragments */
.rdai-frag{margin-top:32px}
.rdai-frag__step{margin:0 0 8px;font-size:18px;font-weight:600;line-height:1.4}
.rdai-frag__note{max-width:70ch;margin:0 0 24px;color:#6b7280;font-size:15px;line-height:1.6}
.rdai-frag__grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.rdai-frag-card{padding:24px;border:1px solid #e5e7eb;border-radius:12px;background:#fff;transition:box-shadow .2s ease,transform .2s ease}
.rdai-frag-card:hover{box-shadow:0 4px 20px rgba(37,99,235,.08);transform:translateY(-2px)}
.rdai-frag-card__badge{display:inline-block;margin-bottom:16px;padding:4px 10px;border-radius:8px;background:#dbeafe;color:#2563eb;font:600 11px/1.4 'JetBrains Mono','SFMono-Regular',Consolas,monospace;letter-spacing:.02em}
.rdai-frag-card h3{margin:0 0 8px;font-size:18px;font-weight:600;line-height:1.4}
.rdai-frag-card p{margin:0;color:#6b7280;font-size:14px;line-height:1.55}
.rdai-frag__arrow{margin:24px 0;color:#2563eb;font-size:22px;font-weight:700;text-align:center}
.rdai-frag__table-wrap{overflow-x:auto;border:1px solid #e5e7eb;border-radius:12px;background:#fff}
.rdai-frag-table{width:100%;min-width:520px;border-collapse:collapse}
.rdai-frag-table__caption{padding:16px 18px;color:#6b7280;font-size:13px;text-align:left}
.rdai-frag-table th,.rdai-frag-table td{padding:12px 18px;border-bottom:1px solid #e5e7eb;font-size:14px;text-align:left;vertical-align:top}
.rdai-frag-table th{background:#eff6ff;font-size:13px;font-weight:600}
.rdai-frag-table tr:last-child td{border-bottom:none}
.rdai-frag-table__field{font:600 13px/1.5 'JetBrains Mono','SFMono-Regular',Consolas,monospace;color:#111827}
.rdai-frag-table__basis{color:#6b7280;font-size:13px}
.rdai-frag-value{font:600 14px/1.5 'JetBrains Mono','SFMono-Regular',Consolas,monospace;font-variant-numeric:tabular-nums}
.rdai-frag-status{display:inline-block;padding:4px 10px;border-radius:8px;background:#f0fdf4;color:#16a34a;font:600 11px/1.4 'JetBrains Mono','SFMono-Regular',Consolas,monospace}
@media (max-width:900px){.rdai-frag__grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}}
@media (max-width:600px){.rdai-frag__grid{grid-template-columns:1fr}}
@media (prefers-reduced-motion:reduce){.rdai-frag-card{transition:none}.rdai-frag-card:hover{transform:none}}

/* Document fragment quote */
.rdai-frag-quote{margin:0 0 32px;padding:24px;border:1px solid #e5e7eb;border-left:3px solid #2563eb;border-radius:12px;background:#f8faff}
.rdai-frag-quote__label{margin-bottom:12px;color:#2563eb;font-size:13px;font-weight:600;letter-spacing:.08em;text-transform:uppercase}
.rdai-frag-quote__text{margin:0;font-size:18px;font-weight:600;line-height:1.5}
.rdai-frag-quote__source{margin:12px 0 0;color:#6b7280;font-size:13px;line-height:1.5}


/* Verification step */
.rdai-method-verify{display:grid;grid-template-columns:auto 1fr;gap:8px 16px;margin:0 0 12px}
.rdai-method-verify dt{color:#2563eb;font-size:13px;font-weight:600}
.rdai-method-verify dd{margin:0;color:#111827;font-size:14px;line-height:1.5}
.rdai-method-verify__value{font:600 14px/1.5 'JetBrains Mono','SFMono-Regular',Consolas,monospace;font-variant-numeric:tabular-nums}
.rdai-method-verify__hash{font:600 13px/1.5 'JetBrains Mono','SFMono-Regular',Consolas,monospace;color:#6b7280}
.rdai-method-verify__status{display:inline-block;padding:4px 10px;border-radius:8px;background:#f0fdf4;color:#16a34a;font:600 11px/1.4 'JetBrains Mono','SFMono-Regular',Consolas,monospace}
.rdai-method-verify__note{margin:0;color:#6b7280;font-size:13px;line-height:1.5}

/* Lineage table counter */
.rdai-method-lineage__reuse{display:inline-block;margin-top:8px;padding:4px 10px;border-radius:8px;background:#eff6ff;border:1px solid #dbeafe;color:#1d4ed8;font-size:12px;font-weight:600}
.rdai-method-lineage__caption{max-width:70ch;margin:16px 0 20px;color:#6b7280;font-size:13px;line-height:1.55}
.rdai-method-grid--proof-single{grid-template-columns:minmax(0,1fr);max-width:720px}

/* Lineage reverse view */
.rdai-lineage-switch{display:flex;flex-wrap:wrap;gap:8px;margin:0 0 20px}
.rdai-lineage-switch button{padding:8px 14px;border:1px solid #e5e7eb;border-radius:8px;background:#fff;font:600 13px/1 Inter,Arial,sans-serif;color:#111827;cursor:pointer}
.rdai-lineage-switch button:hover{border-color:#2563eb}
.rdai-lineage-switch button.is-on{border-color:#2563eb;background:#eff6ff;color:#1d4ed8}
.rdai-lineage-cards{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}
.rdai-lineage-card{padding:18px;border:1px solid #e5e7eb;border-radius:12px;background:#fff}
.rdai-lineage-card--focus{border-color:#2563eb;background:#f8faff}
.rdai-lineage-card header{display:flex;align-items:baseline;justify-content:space-between;gap:12px;margin-bottom:12px;padding-bottom:10px;border-bottom:1px solid #f1f5f9}
.rdai-lineage-card code{font:700 14px/1.3 'JetBrains Mono','SFMono-Regular',Consolas,monospace}
.rdai-lineage-card header span{color:#6b7280;font-size:12px;font-weight:600}
.rdai-lineage-card ul{margin:0;padding:0;list-style:none}
.rdai-lineage-card li{padding:8px 0;border-bottom:1px solid #f8fafc}
.rdai-lineage-card li:last-child{border-bottom:none}
.rdai-lineage-card li strong{display:inline-block;margin-right:8px;font-size:14px}
.rdai-lineage-card li small{color:#6b7280;font-size:12px}
.rdai-lineage-card li span{display:block;margin-top:4px;font:600 13px/1.45 'JetBrains Mono','SFMono-Regular',Consolas,monospace}
@media (max-width:820px){.rdai-lineage-cards{grid-template-columns:1fr}}

/* lineage-hidden-fix */
.rdai-method-lineage__example[hidden],
.rdai-lineage-cards[hidden],
.rdai-lineage-card[hidden]{display:none!important}
.rdai-lineage-switch{position:sticky;top:8px;z-index:2;padding:8px 0;background:#fff}