#platform {
  padding-block: 96px 24px;
}

#platform h2 {
  max-width: 820px;
  font-size: clamp(30px, 3.2vw, 42px);
  line-height: 1.12;
  letter-spacing: -0.015em;
}

#platform h3 {
  max-width: none;
  font-size: 30px;
  line-height: 1.2;
  letter-spacing: normal;
}

#platform p {
  margin: 0;
  color: inherit;
}

#platform [hidden] {
  display: none;
}

#platform .platform-card {
  margin-top: 28px;
  border: 1px solid var(--line);
  border-radius: 28px;
  background: var(--surface);
}

#platform .platform-tabs {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(240px, 100%), 1fr));
  border-bottom: 1px solid var(--line);
  border-radius: 27px 27px 0 0;
  background: var(--canvas);
}

#platform button {
  cursor: pointer;
}

#platform .platform-tabs button {
  display: flex;
  flex-direction: column;
  gap: 2px;
  min-width: 0;
  padding: 18px 24px;
  border: 0;
  background: var(--canvas);
  text-align: left;
}

#platform .platform-tabs button:first-child {
  border-start-start-radius: 27px;
}

#platform .platform-tabs button:last-child {
  border-start-end-radius: 27px;
}

#platform .platform-tabs button[aria-pressed="true"] {
  background: var(--surface);
  box-shadow: inset 0 -3px 0 0 var(--accent);
}

#platform .platform-tabs button span:first-child {
  color: var(--ink);
  font-size: 16px;
  font-weight: 600;
}

#platform .platform-tabs button span:last-child {
  color: var(--muted);
  font-size: 13px;
}

#platform .platform-body {
  padding: clamp(18px, 3vw, 36px);
}

#platform .platform-intro {
  margin-top: 10px;
  color: var(--ink2);
  font-size: 16px;
}

#platform .platform-choices {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin-top: 22px;
  font-size: 14px;
}

#platform .platform-choices > span {
  margin-right: 4px;
  color: var(--ink2);
}

#platform .platform-choices button {
  min-height: 40px;
  padding: 0 16px;
  border: 1px solid var(--line2);
  border-radius: 999px;
  background: var(--surface);
  color: var(--ink);
}

#platform .platform-choices button[aria-pressed="true"] {
  border-color: var(--accent);
  background: var(--accent);
  color: var(--surface);
}

#platform .platform-question {
  max-width: none;
  margin-top: 18px;
  padding: 14px 18px;
  border-radius: 14px;
  background: var(--sunken);
  font-size: 16px;
  font-weight: 500;
}

#platform .platform-context {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
  margin-top: 18px;
}

#platform .platform-sources {
  flex: 1 1 320px;
  min-width: 0;
}

#platform .platform-prepared {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 10px;
  color: var(--accent);
  font-size: 14px;
  font-weight: 600;
}

#platform .platform-prepared svg {
  flex: none;
}

#platform .platform-evidence {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

#platform .platform-evidence > div {
  padding: 10px 14px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--surface);
}

#platform .platform-evidence p:first-child {
  color: var(--muted);
  font-size: 12px;
}

#platform .platform-evidence p:first-child span {
  color: var(--accent);
  font-weight: 600;
}

#platform .platform-evidence p + p {
  margin-top: 2px;
  color: var(--ink2);
  font-size: 14px;
}

#platform .platform-source-note {
  margin-top: 10px;
  color: var(--ink2);
  font-size: 13px;
}

#platform .platform-result {
  /* F2 is content-box: 380px basis + 40px padding + 2px border */
  flex: 1.3 1 422px;
  min-width: 0;
  padding: 20px;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: var(--canvas);
  font-size: 16px;
}

#platform .platform-result-label,
#platform .platform-column-label,
#platform .platform-baseline-label {
  margin-bottom: 10px;
  color: var(--muted);
  font-size: 14px;
  font-weight: 600;
}

#platform .platform-search-results,
#platform .platform-answer,
#platform .platform-opportunity-columns ul,
#platform .platform-opportunity-columns ol {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin: 0;
  padding-left: 18px;
}

#platform .platform-search-results {
  gap: 10px;
  padding-left: 20px;
}

#platform .platform-search-results span {
  color: var(--ink2);
  font-size: 14px;
}

#platform .platform-supported,
#platform .platform-uncertain {
  color: var(--accent);
  font-size: 14px;
  font-weight: 600;
}

#platform .platform-answer {
  margin-top: 6px;
}

#platform .platform-uncertain {
  margin-top: 14px;
  color: var(--seal);
}

#platform .platform-uncertain-detail {
  margin-top: 4px;
}

#platform .platform-draft-title {
  font-family: var(--display);
  font-weight: 400;
  font-size: 24px;
}

#platform .platform-draft-label {
  margin-top: 10px;
  font-size: 14px;
  font-weight: 600;
}

#platform .platform-draft-detail {
  margin-top: 2px;
  color: var(--ink2);
  font-size: 14px;
}

#platform .platform-kicker {
  margin-bottom: 8px;
  color: var(--accent);
  font-size: 14px;
  font-weight: 600;
}

#platform .platform-opportunity {
  margin-top: 16px;
  border: 1px solid var(--line);
  border-radius: 20px;
  overflow: hidden;
  font-size: 14px;
}

#platform .platform-opportunity-heading,
#platform .platform-metric-heading {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 8px 16px;
}

#platform .platform-opportunity-heading {
  padding: 16px 20px;
  background: var(--accent-soft);
}

#platform .platform-opportunity-heading p:first-child {
  color: var(--ink2);
  font-size: 13px;
}

#platform .platform-opportunity-heading p + p {
  font-size: 18px;
  font-weight: 600;
}

#platform .platform-validation,
#platform .platform-approval {
  padding: 5px 12px;
  border: 1px solid var(--seal-line);
  border-radius: 999px;
  background: var(--seal-soft);
  color: var(--seal);
  font-size: 13px;
  font-weight: 500;
}

#platform .platform-approval {
  padding: 1px 8px;
  border: 0;
  font-size: 12px;
  font-weight: 400;
}

#platform .platform-opportunity-columns {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(260px, 100%), 1fr));
}

#platform .platform-opportunity-columns > div {
  min-width: 0;
  padding: 20px;
  border-top: 1px solid var(--line);
}

#platform .platform-column-label {
  margin-bottom: 8px;
}

#platform .platform-opportunity-columns ol {
  gap: 8px;
}

#platform .platform-benefit .platform-assumption {
  margin-top: 6px;
  color: var(--ink2);
  font-size: 13px;
}

#platform .platform-effort,
#platform .platform-benefit-note {
  margin-top: 10px;
}

#platform .platform-benefit-note {
  color: var(--seal);
  font-size: 13px;
  font-weight: 500;
}

#platform .platform-outcomes {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-top: 22px;
  font-size: 14px;
}

#platform .platform-baseline {
  flex: 1 1 342px;
  min-width: 0;
  padding: 20px;
  border: 1px solid var(--line);
  border-radius: 18px;
}

#platform .platform-baseline-label {
  margin-bottom: 12px;
}

#platform dl {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 8px 16px;
  margin: 0;
}

#platform dt {
  color: var(--muted);
}

#platform dd {
  margin: 0;
}

#platform .platform-measurements {
  display: flex;
  flex: 1.2 1 340px;
  flex-direction: column;
  gap: 12px;
  min-width: 0;
}

#platform .platform-observed {
  padding: 20px;
  border-radius: 18px;
  background: var(--accent-soft);
  color: var(--ink2);
}

#platform .platform-observed .platform-metric-heading p {
  font-weight: 600;
}

#platform .platform-metric-heading {
  gap: 8px;
}

#platform .platform-measured {
  padding: 2px 10px;
  border-radius: 999px;
  background: var(--accent);
  color: var(--surface);
  font-size: 12px;
}

#platform .platform-metric-value {
  margin-top: 6px;
  color: var(--navy);
  font-family: var(--display);
  font-weight: var(--dw);
  font-size: 36px;
}

#platform .platform-metrics {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(200px, 100%), 1fr));
  gap: 12px;
}

#platform .platform-metrics > div {
  min-width: 0;
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: 16px;
}

#platform .platform-metrics .platform-metric-heading {
  gap: 6px;
  color: var(--muted);
  font-size: 13px;
}

#platform .platform-measured-text,
#platform .platform-estimate {
  color: var(--accent);
  font-size: 12px;
  font-weight: 600;
}

#platform .platform-estimate {
  color: var(--seal);
}

#platform .platform-metric-total {
  margin-top: 4px;
  font-size: 20px;
  font-weight: 600;
}

#platform .platform-calculation {
  margin-top: 2px;
  color: var(--muted);
  font-size: 12px;
}

#platform .platform-outcomes-note {
  color: var(--ink2);
  font-size: 13px;
}

@media (max-width: 600px) {
  #platform .platform-tabs button:first-child {
    border-start-end-radius: 27px;
  }

  #platform .platform-tabs button:last-child {
    border-start-end-radius: 0;
  }
}