.signature-figure {
  margin: 1.8rem 0 2.7rem;
  padding: clamp(1.25rem, 3vw, 2rem);
  border: 1px solid rgba(18, 59, 93, .12);
  border-radius: 1.15rem;
  background: linear-gradient(145deg, #f7fbfa, #fffaf0);
  box-shadow: 0 16px 42px rgba(16, 47, 59, .1);
}

.signature-figure figcaption {
  margin-top: 1.25rem;
  color: var(--muted);
  font-size: .82rem;
  line-height: 1.55;
}

.signature-funnel {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) auto minmax(12rem, .8fr);
  gap: clamp(.8rem, 2vw, 1.4rem);
  align-items: center;
}

.signature-stage {
  min-height: 13rem;
  padding: 1.2rem;
  border-radius: 1rem;
  background: white;
  box-shadow: 0 9px 28px rgba(16, 47, 59, .08);
}

.signature-kicker {
  display: block;
  margin-bottom: .75rem;
  color: var(--teal);
  font-size: .7rem;
  font-weight: 700;
  letter-spacing: .13em;
  text-transform: uppercase;
}

.feature-cloud p {
  display: grid;
  grid-template-columns: repeat(8, 1fr);
  gap: .42rem;
  align-items: center;
  margin: 0;
}

.feature-cloud span {
  display: block;
  aspect-ratio: 1;
  border-radius: 50%;
  background: var(--mint);
  box-shadow: inset 0 0 0 1px rgba(22, 125, 120, .18);
}

.feature-cloud span:nth-child(3n) { background: rgba(211, 154, 56, .48); }
.feature-cloud span:nth-child(5n) { background: rgba(188, 97, 89, .45); }
.feature-cloud span:nth-child(7n) { background: rgba(18, 59, 93, .42); }

.selection-gate {
  width: 8rem;
  color: white;
  text-align: center;
}

.selection-gate::before {
  content: "";
  display: block;
  width: 100%;
  height: 6.5rem;
  margin-bottom: .6rem;
  background: linear-gradient(145deg, var(--teal), var(--ocean));
  clip-path: polygon(0 0, 100% 0, 62% 58%, 62% 100%, 38% 100%, 38% 58%);
  filter: drop-shadow(0 8px 12px rgba(16, 47, 59, .2));
  transform: rotate(-90deg);
}

.selection-gate strong {
  color: var(--ocean);
  font-size: .76rem;
  line-height: 1.35;
}

.signature-panel {
  color: white;
  background: linear-gradient(145deg, var(--ocean), var(--teal));
}

.signature-panel .signature-kicker { color: #b9e4d8; }

.signature-chips {
  display: grid;
  gap: .55rem;
}

.signature-chip {
  padding: .62rem .75rem;
  border-left: 4px solid var(--gold);
  border-radius: .45rem;
  color: #123b5d;
  background: white;
  font-weight: 700;
  box-shadow: 0 5px 14px rgba(5, 24, 35, .2);
}

.signature-panel .signature-chip {
  color: #123b5d !important;
  -webkit-text-fill-color: #123b5d;
}

.validation-compare {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
}

.validation-path {
  padding: 1.25rem;
  border-radius: 1rem;
  background: white;
  box-shadow: 0 9px 28px rgba(16, 47, 59, .08);
}

.validation-path h3 { margin: 0 0 1rem; color: var(--ocean); }
.validation-path-leaky { border-top: 4px solid var(--coral); }
.validation-path-honest { border-top: 4px solid var(--teal); }

.validation-flow {
  display: grid;
  grid-template-columns: 1fr auto 1fr auto 1fr;
  gap: .45rem;
  align-items: center;
}

.validation-step {
  display: grid;
  place-items: center;
  min-height: 5.2rem;
  padding: .7rem .45rem;
  border-radius: .65rem;
  color: var(--ocean);
  background: var(--mint);
  text-align: center;
  font-size: .75rem;
  font-weight: 700;
}

.validation-path-leaky .validation-step:first-child { background: #f5dfdc; }
.validation-arrow { color: var(--teal); font-weight: 800; }
.validation-path-leaky .validation-arrow { color: var(--coral); }

.validation-verdict {
  margin: 1rem 0 0;
  padding: .75rem;
  border-radius: .55rem;
  color: var(--muted);
  background: var(--sand);
  font-size: .82rem;
  line-height: 1.5;
}

.validation-verdict strong { color: var(--ocean); }

.signature-number-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
  margin: 1.5rem 0 2.5rem;
}

.signature-number {
  padding: 1.35rem;
  border-top: 4px solid var(--gold);
  border-radius: .75rem;
  background: var(--sand);
}

.signature-number:nth-child(2) { border-color: var(--teal); }
.signature-number:nth-child(3) { border-color: var(--coral); }

.signature-number strong {
  display: block;
  color: var(--ocean);
  font-family: "Source Serif 4", serif;
  font-size: clamp(2rem, 5vw, 3.1rem);
  line-height: 1;
}

.signature-number span {
  display: block;
  margin-top: .45rem;
  color: var(--muted);
  font-size: .82rem;
}

body.quarto-dark .signature-figure {
  border-color: rgba(223, 241, 236, .14);
  background: linear-gradient(145deg, #142d3a, #20343c);
}

body.quarto-dark .signature-stage,
body.quarto-dark .validation-path { background: #203b47; }

body.quarto-dark .selection-gate strong,
body.quarto-dark .validation-path h3,
body.quarto-dark .validation-verdict strong { color: #dff1ec; }

body.quarto-dark .validation-step {
  color: #dff1ec;
  background: rgba(22, 125, 120, .34);
}

body.quarto-dark .validation-path-leaky .validation-step:first-child {
  background: rgba(188, 97, 89, .35);
}

body.quarto-dark .validation-verdict,
body.quarto-dark .signature-number { background: #253b43; }

body.quarto-dark .signature-number strong { color: #dff1ec; }
body.quarto-dark .signature-figure figcaption,
body.quarto-dark .validation-verdict,
body.quarto-dark .signature-number span { color: #c4d6d5; }

@media (max-width: 760px) {
  .signature-funnel { grid-template-columns: 1fr; }
  .selection-gate { width: 100%; }
  .selection-gate::before {
    width: 6rem;
    height: 5rem;
    margin: 0 auto .5rem;
    transform: none;
  }
  .validation-compare,
  .signature-number-grid { grid-template-columns: 1fr; }
}