.lead-evidence-story {
  position: relative;
  margin-top: 40px;
  overflow: hidden;
  border: 1px solid #d2d3d0;
  background: var(--paper);
}

.lead-evidence-story::before {
  content: "";
  position: absolute;
  z-index: 4;
  top: -1px;
  left: -1px;
  width: 96px;
  height: 4px;
  background: var(--amber);
}

.evidence-study {
  min-height: 184px;
  display: grid;
  grid-template-columns: minmax(300px, 0.48fr) minmax(0, 1.52fr);
  border-bottom: 1px solid #d2d3d0;
  background: rgba(255, 255, 255, 0.92);
}

.evidence-ratio {
  position: relative;
  padding: 26px clamp(24px, 2.5vw, 32px);
  border-right: 1px solid #d2d3d0;
  display: flex;
  flex-direction: column;
  justify-content: center;
  color: var(--ink);
  background: transparent;
  overflow: visible;
  z-index: 2;
}

.evidence-ratio::after {
  content: "";
  position: absolute;
  top: 34px;
  bottom: 34px;
  left: 0;
  width: 4px;
  background: var(--amber);
}

.evidence-ratio strong,
.evidence-ratio span {
  display: block;
}

.evidence-ratio strong {
  position: relative;
  z-index: 3;
  width: max-content;
  color: var(--amber-deep);
  max-width: 100%;
  font: 800 clamp(3.8rem, 5.4vw, 6.1rem)/0.84 var(--display-font);
  transform: none;
}

.evidence-ratio span {
  margin-top: 12px;
  color: #73767a;
  font: 600 0.68rem/1 "IBM Plex Mono", Consolas, monospace;
  text-transform: uppercase;
}

.evidence-headline {
  padding: 28px clamp(26px, 4.5vw, 64px);
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.evidence-headline .eyebrow {
  width: fit-content;
  min-height: 0;
  margin-bottom: 16px;
  padding: 0;
  border: 0;
  border-radius: 0;
  color: var(--amber-deep);
  background: transparent;
}

.evidence-headline h3 {
  max-width: 920px;
  margin: 0;
  color: var(--ink);
  font-size: clamp(1.65rem, 2.55vw, 2.75rem);
  line-height: 1.1;
}

.evidence-route {
  position: relative;
  margin: 24px;
  border: 1px solid #d7d8d5;
  display: grid;
  grid-template-columns: 0.9fr 0.9fr 1.2fr;
  background: rgba(255, 255, 255, 0.84);
}

.evidence-route::before,
.evidence-route::after {
  content: "";
  position: absolute;
  top: 65px;
  right: 8%;
  left: 8%;
  height: 2px;
}

.evidence-route::before {
  background: #c8c9c7;
}

.evidence-route::after {
  background: var(--amber);
  transform: scaleX(0);
  transform-origin: left;
}

.problem-lab.is-visible .evidence-route::after {
  animation: evidenceRouteDraw 1.3s var(--ease-out) 180ms forwards;
}

.evidence-route article {
  position: relative;
  z-index: 2;
  min-height: 178px;
  padding: 28px clamp(22px, 2.7vw, 38px) 26px;
  border-right: 1px solid #d7d8d5;
  display: grid;
  grid-template-rows: auto 28px auto auto;
  align-content: start;
}

.evidence-route article:last-child {
  border-right: 0;
  background: rgba(255, 90, 0, 0.04);
}

.evidence-route article > span {
  color: #73767a;
  font: 600 0.68rem/1 "IBM Plex Mono", Consolas, monospace;
  text-transform: uppercase;
}

.evidence-route article i {
  width: 12px;
  height: 12px;
  margin-top: 17px;
  border: 3px solid var(--white);
  border-radius: 50%;
  background: #8e9194;
  box-shadow: 0 0 0 1px #8e9194;
}

.evidence-route article:first-child i,
.evidence-route article:last-child i {
  background: var(--amber);
  box-shadow: 0 0 0 1px var(--amber), 0 0 18px rgba(255, 90, 0, 0.2);
}

.evidence-route article strong {
  margin-top: 18px;
  color: var(--ink);
  font-size: clamp(1.15rem, 1.8vw, 1.65rem);
  line-height: 1.12;
}

.evidence-route article:last-child strong {
  color: var(--amber-deep);
}

.evidence-route article small {
  margin-top: 8px;
  color: #75787d;
  font: 500 0.64rem/1.35 "IBM Plex Mono", Consolas, monospace;
  text-transform: uppercase;
}

.evidence-self-check {
  min-height: 126px;
  padding: 24px clamp(24px, 3.5vw, 48px);
  border-top: 1px solid #d2d3d0;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(330px, 0.7fr);
  gap: 34px;
  align-items: center;
  background: rgba(255, 255, 255, 0.92);
}

.evidence-self-check .eyebrow {
  margin-bottom: 9px;
}

.evidence-self-check h3 {
  max-width: 660px;
  margin: 0;
  font-size: clamp(1.35rem, 2vw, 2rem);
  line-height: 1.08;
}

.evidence-check-action {
  display: grid;
  gap: 12px;
}

.evidence-self-check .self-check-options {
  display: grid;
  grid-template-columns: 0.72fr 1fr;
}

.evidence-self-check .self-check-options button {
  min-height: 48px;
  border-radius: 0;
  font-size: 0.68rem;
}

.evidence-self-check .self-check-result {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 14px;
  align-items: center;
}

.evidence-self-check .self-check-result[hidden] {
  display: none;
}

.evidence-self-check .self-check-result p {
  margin: 0;
  font-weight: 800;
}

.evidence-self-check .self-check-result a {
  color: var(--amber-deep);
  font-weight: 800;
}

@keyframes evidenceRouteDraw {
  from { transform: scaleX(0); }
  to { transform: scaleX(1); }
}

@media (max-width: 780px) {
  .lead-evidence-story {
    margin-top: 28px;
  }

  .evidence-study {
    grid-template-columns: 1fr;
  }

  .evidence-ratio {
    min-height: 124px;
    padding: 22px;
    border-right: 0;
    border-bottom: 1px solid #d2d3d0;
    flex-direction: row;
    justify-content: flex-start;
    gap: 18px;
    align-items: end;
  }

  .evidence-ratio strong {
    font-size: clamp(4.2rem, 20vw, 6rem);
  }

  .evidence-ratio span {
    margin: 0 0 6px;
  }

  .evidence-headline {
    padding: 25px 20px 28px;
  }

  .evidence-route {
    grid-template-columns: 1fr;
    margin: 14px;
    padding: 10px 0;
  }

  .evidence-route::before,
  .evidence-route::after {
    top: 42px;
    right: auto;
    bottom: 42px;
    left: 35px;
    width: 2px;
    height: auto;
  }

  .evidence-route::after {
    transform: scaleY(0);
    transform-origin: top;
  }

  .problem-lab.is-visible .evidence-route::after {
    animation-name: evidenceRouteDrawVertical;
  }

  .evidence-route article {
    min-height: 112px;
    padding: 20px 20px 20px 66px;
    border-right: 0;
    border-bottom: 1px solid #c8c9c7;
    grid-template-columns: 54px minmax(0, 1fr);
    grid-template-rows: auto auto auto;
    column-gap: 10px;
  }

  .evidence-route article:last-child {
    border-bottom: 0;
  }

  .evidence-route article i {
    position: absolute;
    top: 24px;
    left: 29px;
    margin: 0;
  }

  .evidence-route article strong,
  .evidence-route article small {
    grid-column: 2;
  }

  .evidence-route article strong {
    margin-top: 0;
  }

  .evidence-route article small {
    margin-top: 6px;
  }

  .evidence-self-check {
    padding: 24px 20px;
    grid-template-columns: 1fr;
    gap: 20px;
  }
}

/* Editorial polish: one fact, one promise, one controlled route. */
@media (min-width: 781px) {
  .lead-evidence-story {
    border-color: #bfc1be;
    background: rgba(255, 255, 255, 0.97);
  }

  .evidence-study {
    grid-template-columns: minmax(280px, 0.34fr) minmax(0, 1fr);
    min-height: 306px;
  }

  .evidence-ratio {
    min-height: 306px;
    padding: 46px clamp(34px, 3vw, 48px);
    justify-content: center;
    border-right-color: #c8cac7;
    background: #fff8f4;
  }

  .evidence-ratio::after {
    top: 32px;
    bottom: 32px;
    width: 3px;
  }

  .evidence-ratio > span {
    margin-bottom: 12px;
    color: var(--amber-deep);
    letter-spacing: 0.02em;
  }

  .evidence-ratio strong {
    font-size: clamp(5.4rem, 7vw, 7.2rem);
    line-height: 0.84;
    letter-spacing: 0;
  }

  .evidence-ratio small {
    margin-top: 20px;
    max-width: 230px;
    font-size: 0.78rem;
    line-height: 1.5;
    letter-spacing: 0.03em;
  }

  .evidence-headline {
    padding: 46px clamp(48px, 6vw, 88px);
    justify-content: center;
  }

  .evidence-headline .eyebrow {
    margin-bottom: 22px;
  }

  .evidence-headline h3 {
    max-width: 810px;
    font-size: clamp(3rem, 4.4vw, 4.35rem);
    line-height: 0.98;
  }

  .evidence-fomo {
    margin-top: 24px;
    font-size: clamp(0.98rem, 1.2vw, 1.14rem);
  }

  .evidence-route article {
    min-height: 212px;
    padding: 30px clamp(30px, 3.2vw, 48px) 26px;
  }

  .evidence-route article > span {
    letter-spacing: 0.02em;
  }

  .evidence-route article:first-child > span::before { content: "01 / "; color: var(--amber-deep); }
  .evidence-route article:nth-child(2) > span::before { content: "02 / "; color: var(--amber-deep); }
  .evidence-route article:nth-child(3) > span::before { content: "03 / "; color: var(--amber-deep); }

  .evidence-route article strong,
  .evidence-route article:nth-child(2) strong,
  .evidence-route article:last-child strong {
    margin-top: 22px;
    font-size: clamp(1.85rem, 2.55vw, 2.7rem);
    letter-spacing: 0;
  }

  .evidence-route article small {
    padding-top: 22px;
    letter-spacing: 0.01em;
  }

  .evidence-self-check {
    min-height: 154px;
    padding: 28px clamp(34px, 4.2vw, 58px);
    grid-template-columns: minmax(0, 1.15fr) minmax(360px, 0.62fr);
    background: #fafaf7;
  }

  .evidence-self-check .eyebrow {
    margin-bottom: 12px;
  }

  .evidence-self-check h3 {
    max-width: 690px;
    font-size: clamp(1.75rem, 2.35vw, 2.45rem);
    line-height: 1.04;
  }

  .evidence-self-check .self-check-options {
    border: 1px solid #aeb0ad;
    background: var(--white);
  }

  .evidence-self-check .self-check-options button {
    min-height: 54px;
    border: 0;
    transition: color 180ms ease, background-color 180ms ease;
  }

  .evidence-self-check .self-check-options button + button {
    border-left: 1px solid #aeb0ad;
  }

  .evidence-self-check .self-check-options button:hover,
  .evidence-self-check .self-check-options button:focus-visible {
    color: var(--white);
    background: var(--ink);
  }
}

@keyframes evidenceRouteDrawVertical {
  from { transform: scaleY(0); }
  to { transform: scaleY(1); }
}

@media (prefers-reduced-motion: reduce) {
  .problem-lab.is-visible .evidence-route::after {
    transform: none;
    animation: none;
  }
}

/* Ten-minute acquisition path refresh. */
.lead-evidence-story {
  margin-top: 36px;
  border-color: #c9cbc8;
  background: rgba(255, 255, 255, 0.94);
}

.lead-evidence-story::before {
  width: 100%;
  height: 3px;
}

.evidence-study {
  min-height: 208px;
  grid-template-columns: minmax(290px, 0.42fr) minmax(0, 1.58fr);
  border-bottom-color: #c9cbc8;
}

.evidence-ratio {
  padding: 32px clamp(28px, 3vw, 42px);
  border-right-color: #c9cbc8;
  justify-content: center;
  background: rgba(255, 90, 0, 0.045);
}

.evidence-ratio::after {
  top: 30px;
  bottom: 30px;
  width: 3px;
}

.evidence-ratio > span {
  order: 1;
  margin: 0 0 13px;
  color: var(--amber-deep);
  font-size: 0.65rem;
  font-weight: 700;
}

.evidence-ratio strong {
  order: 2;
  color: var(--ink);
  font-size: clamp(4.2rem, 5.8vw, 6.35rem);
  line-height: 0.82;
}

.evidence-ratio small {
  order: 3;
  max-width: 190px;
  margin-top: 16px;
  color: #6d7074;
  font: 600 0.64rem/1.35 "IBM Plex Mono", Consolas, monospace;
  text-transform: uppercase;
}

.evidence-headline {
  padding: 36px clamp(30px, 5vw, 72px);
}

.evidence-headline .eyebrow {
  margin-bottom: 18px;
}

.evidence-headline h3 {
  max-width: 850px;
  font-size: clamp(2rem, 3vw, 3.35rem);
  line-height: 1.02;
  text-wrap: balance;
}

.evidence-fomo {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 19px 0 0;
  color: #616469;
  font-size: clamp(0.92rem, 1.1vw, 1.06rem);
  font-weight: 700;
}

.evidence-fomo::before {
  content: "";
  width: 9px;
  height: 9px;
  flex: 0 0 auto;
  background: var(--amber);
}

.evidence-route {
  margin: 0;
  border: 0;
  grid-template-columns: 1.02fr 1.08fr 0.9fr;
  background: rgba(255, 255, 255, 0.78);
}

.evidence-route::before,
.evidence-route::after {
  top: 77px;
  right: 7.5%;
  left: 7.5%;
}

.evidence-route::before {
  height: 1px;
}

.evidence-route::after {
  height: 2px;
}

.evidence-route article {
  min-height: 224px;
  padding: 32px clamp(24px, 3vw, 42px) 28px;
  border-right-color: #d0d2cf;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}

.evidence-route article:last-child {
  background: rgba(255, 90, 0, 0.055);
}

.evidence-route article:not(:last-child)::after {
  content: "\2192";
  position: absolute;
  top: 64px;
  right: -14px;
  z-index: 5;
  display: grid;
  width: 28px;
  height: 28px;
  place-items: center;
  border: 1px solid var(--amber);
  background: var(--white);
  color: var(--amber-deep);
  font: 700 0.86rem/1 var(--mono-font);
}

.evidence-route article > span {
  font-size: 0.65rem;
  font-weight: 700;
}

.evidence-route article i {
  width: 13px;
  height: 13px;
  margin-top: 21px;
}

.evidence-route article strong {
  max-width: 330px;
  margin-top: 21px;
  font-size: clamp(1.3rem, 1.8vw, 1.75rem);
}

.evidence-route article:nth-child(2) strong {
  color: var(--amber-deep);
}

.evidence-route article:last-child strong {
  color: var(--ink);
}

.evidence-route article small {
  margin-top: auto;
  padding-top: 16px;
  font-size: 0.64rem;
  font-weight: 600;
}

.evidence-source-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 5px;
  margin-top: 14px;
}

.evidence-source-chips b {
  padding: 5px 7px;
  border: 1px solid #d0d2cf;
  color: #66696d;
  background: var(--white);
  font: 600 0.55rem/1 var(--mono-font);
  text-transform: uppercase;
}

.evidence-self-check {
  min-height: 138px;
  border-top-color: #c9cbc8;
  grid-template-columns: minmax(0, 1.1fr) minmax(330px, 0.62fr);
  background: rgba(255, 255, 255, 0.96);
}

.evidence-self-check h3 {
  max-width: 720px;
}

@media (max-width: 780px) {
  .evidence-study {
    min-height: 0;
    grid-template-columns: 1fr;
  }

  .evidence-ratio {
    min-height: 136px;
    padding: 22px 20px;
    align-items: center;
  }

  .evidence-ratio > span {
    margin: 0;
  }

  .evidence-ratio strong {
    font-size: clamp(3.8rem, 18vw, 5.4rem);
  }

  .evidence-ratio small {
    max-width: 118px;
    margin: 0 0 5px;
  }

  .evidence-headline {
    padding: 28px 20px 30px;
  }

  .evidence-headline h3 {
    font-size: clamp(2rem, 9.7vw, 2.8rem);
  }

  .evidence-route {
    margin: 0;
    padding: 8px 0;
    grid-template-columns: 1fr;
  }

  .evidence-route::before,
  .evidence-route::after {
    top: 38px;
    bottom: 38px;
    left: 35px;
  }

  .evidence-route article {
    min-height: 160px;
    padding: 24px 20px 22px 67px;
    display: grid;
    grid-template-columns: minmax(0, 1fr);
    grid-template-rows: auto auto auto auto;
  }

  .evidence-route article:not(:last-child)::after {
    content: "\2193";
    top: auto;
    right: auto;
    bottom: -14px;
    left: 22px;
  }

  .evidence-route article i {
    top: 27px;
    left: 29px;
  }

  .evidence-route article strong,
  .evidence-route article small,
  .evidence-source-chips {
    grid-column: 1;
  }

  .evidence-route article strong {
    margin-top: 14px;
  }

  .evidence-route article small {
    margin-top: 12px;
    padding-top: 0;
  }

  .evidence-self-check {
    grid-template-columns: 1fr;
  }
}

/* Final clarity pass: one proof, one promise, three large outcomes. */
.evidence-study {
  grid-template-columns: minmax(300px, 0.44fr) minmax(0, 1.56fr);
}

.evidence-ratio {
  overflow: hidden;
  padding-right: clamp(26px, 2.5vw, 38px);
  padding-left: clamp(26px, 2.5vw, 38px);
}

.evidence-ratio > span {
  font-size: 0.67rem;
}

.evidence-ratio strong {
  max-width: 100%;
  font-size: clamp(4rem, 5vw, 5.6rem);
}

.evidence-ratio small {
  margin-top: 14px;
  color: var(--amber-deep);
  font-size: 0.72rem;
  font-weight: 700;
}

.evidence-headline h3 {
  max-width: 900px;
  font-size: clamp(2.25rem, 3.35vw, 3.7rem);
  line-height: 1;
}

.evidence-fomo {
  margin-top: 17px;
  color: var(--ink);
  font-size: clamp(1rem, 1.25vw, 1.18rem);
}

.evidence-route {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.evidence-route article {
  min-height: 198px;
  padding-top: 28px;
  padding-bottom: 25px;
}

.evidence-route article > span {
  color: #676a6e;
  font-size: 0.7rem;
}

.evidence-route article strong,
.evidence-route article:nth-child(2) strong,
.evidence-route article:last-child strong {
  max-width: none;
  margin-top: 19px;
  color: var(--ink);
  font-size: clamp(1.8rem, 2.35vw, 2.5rem);
  line-height: 1;
}

.evidence-route article:nth-child(2) strong,
.evidence-route article:last-child strong {
  color: var(--amber-deep);
}

.evidence-route article small {
  color: #62656a;
  font-size: 0.7rem;
  line-height: 1.35;
}

.evidence-self-check {
  grid-template-columns: minmax(0, 1.2fr) minmax(340px, 0.58fr);
}

.evidence-self-check h3 {
  max-width: 760px;
  font-size: clamp(1.7rem, 2.35vw, 2.35rem);
}

@media (max-width: 780px) {
  .evidence-study {
    grid-template-columns: 1fr;
  }

  .evidence-ratio {
    min-height: 132px;
    display: grid;
    grid-template-columns: auto minmax(0, 1fr);
    grid-template-rows: auto auto;
    column-gap: 18px;
    align-items: center;
  }

  .evidence-ratio strong {
    grid-column: 1;
    grid-row: 1 / span 2;
    font-size: clamp(3.9rem, 18vw, 5rem);
  }

  .evidence-ratio > span {
    grid-column: 2;
    grid-row: 1;
    margin: 0;
    align-self: end;
    line-height: 1.3;
  }

  .evidence-ratio small {
    grid-column: 2;
    grid-row: 2;
    max-width: none;
    margin: 5px 0 0;
    align-self: start;
  }

  .evidence-headline h3 {
    font-size: clamp(2.25rem, 10.7vw, 3rem);
  }

  .evidence-route {
    grid-template-columns: 1fr;
  }

  .evidence-route article {
    min-height: 142px;
  }

  .evidence-route article strong,
  .evidence-route article:nth-child(2) strong,
  .evidence-route article:last-child strong {
    font-size: clamp(2rem, 9.5vw, 2.55rem);
  }

  .evidence-self-check {
    grid-template-columns: 1fr;
  }

  .evidence-self-check h3 {
    font-size: clamp(1.8rem, 8.6vw, 2.35rem);
  }
}

/* Mobile: preserve the story while removing roughly a third of its vertical run. */
@media (max-width: 780px) {
  .lead-evidence-story {
    margin-top: 22px;
  }

  .evidence-study {
    min-height: 0;
  }

  .evidence-ratio {
    min-height: 94px;
    padding: 14px 18px;
    grid-template-columns: auto minmax(0, 1fr);
    column-gap: 14px;
  }

  .evidence-ratio::after {
    top: 16px;
    bottom: 16px;
  }

  .evidence-ratio strong {
    font-size: clamp(3.45rem, 16.5vw, 4.2rem);
  }

  .evidence-ratio > span {
    font-size: 0.57rem;
  }

  .evidence-ratio small {
    margin-top: 3px;
    font-size: 0.59rem;
    line-height: 1.25;
  }

  .evidence-headline {
    padding: 20px 18px 22px;
  }

  .evidence-headline .eyebrow {
    display: none;
  }

  .evidence-headline h3 {
    font-size: clamp(1.9rem, 9.6vw, 2.5rem);
    line-height: 1;
  }

  .evidence-fomo {
    margin-top: 13px;
    font-size: 0.9rem;
    line-height: 1.3;
  }

  .evidence-route {
    min-height: 86px;
    padding: 0;
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .evidence-route::before,
  .evidence-route::after {
    display: none;
  }

  .evidence-route article {
    min-height: 86px;
    padding: 12px 7px;
    border-right: 1px solid #d7d8d5;
    border-bottom: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
  }

  .evidence-route article:not(:last-child)::after {
    display: none;
  }

  .evidence-route article > span,
  .evidence-route article i,
  .evidence-route article small {
    display: none;
  }

  .evidence-route article strong,
  .evidence-route article:nth-child(2) strong,
  .evidence-route article:last-child strong {
    margin: 0;
    font-size: clamp(1rem, 4.8vw, 1.25rem);
    line-height: 1.05;
  }

  .evidence-self-check {
    min-height: 0;
    padding: 18px;
    gap: 14px;
  }

  .evidence-self-check .eyebrow {
    display: none;
  }

  .evidence-self-check h3 {
    font-size: clamp(1.55rem, 7.7vw, 2rem);
  }

  .evidence-check-action {
    gap: 9px;
  }

  .evidence-self-check .self-check-options button {
    min-height: 44px;
  }
}

/* Keep the research finding prominent and immediately legible. */
.evidence-ratio > span {
  font-size: clamp(0.68rem, 0.8vw, 0.78rem);
}

.evidence-ratio small {
  max-width: 290px;
  color: var(--muted);
  font-size: clamp(0.82rem, 1vw, 0.96rem);
  font-weight: 500;
  line-height: 1.32;
}

.evidence-ratio small em {
  color: var(--amber-deep);
  font-style: normal;
  font-weight: 500;
  border-bottom: 1px solid rgba(217, 70, 0, 0.5);
}

/* Keep the route rail, status nodes and handoff arrows on one axis. */
.evidence-route::before,
.evidence-route::after {
  top: 66px;
}

.evidence-route article:not(:last-child)::after {
  top: 53px;
}

@media (max-width: 780px) {
  .evidence-ratio > span {
    font-size: 0.58rem;
  }

  .evidence-ratio small {
    max-width: 190px;
    font-size: 0.7rem;
    line-height: 1.18;
  }
}