/* Plain-language figures. Values and captions remain readable without scripts. */
.evidence-figure {
  margin: 0;
  padding: clamp(24px, 4vw, 64px);
  background: var(--yellow-soft);
  color: var(--blue-deep);
}
.evidence-figure h2,
.evidence-figure h3 {
  margin: 0;
  max-width: 760px;
  font-size: clamp(28px, 3vw, 46px);
  line-height: 1.12;
}
.figure-eyebrow {
  display: block;
  margin-bottom: 20px;
  color: var(--quiet);
  font-size: 13px;
}
.figure-source,
.evidence-figure .figure-source {
  max-width: 880px;
  margin-top: 28px;
  font-size: 12px;
  line-height: 1.6;
  color: var(--quiet);
}
.figure-source a,
.clinical-note a,
.study-detail a:not([class]) {
  text-decoration: underline;
  text-underline-offset: 3px;
}
.figure-split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(28px, 5vw, 88px);
  align-items: center;
}
.figure-split > * {
  min-width: 0;
}
.figure-split > div > p:not([class]) {
  margin-top: 20px;
  max-width: 580px;
  color: var(--copy);
}
.figure-big-number {
  display: block;
  font-size: clamp(64px, 9vw, 132px);
  font-weight: 400;
  line-height: 1;
  letter-spacing: -0.07em;
  color: var(--blue);
}
.figure-big-number small {
  font-size: 0.3em;
  letter-spacing: -0.02em;
}
.clinical-note {
  margin-top: 28px;
  max-width: 880px;
  padding-left: 20px;
  border-left: 3px solid var(--yellow);
  font-size: 15px;
  line-height: 1.6;
}
.figure-section {
  padding-block: 24px 64px;
}

/* Two recommendations drawn against the same age range. */
.age-comparison {
  margin-top: 38px;
}
.age-comparison-row + .age-comparison-row {
  margin-top: 28px;
}
.age-comparison-label {
  display: flex;
  gap: 16px;
  align-items: baseline;
  justify-content: space-between;
  margin-bottom: 12px;
  font-size: 14px;
}
.age-comparison-label strong {
  font-weight: 400;
  font-size: clamp(27px, 3.5vw, 48px);
  letter-spacing: -0.04em;
}
.age-comparison-track {
  height: 14px;
  background: #dce9ee;
}
.age-comparison-track span {
  display: block;
  height: 100%;
  background: var(--blue);
}
.age-comparison-row + .age-comparison-row .age-comparison-track span {
  width: 90%;
  background: var(--yellow);
}
.criteria-caption {
  margin-top: 24px;
  font-size: 14px;
  line-height: 1.6;
}

/* A continuous path, rather than four isolated text boxes. */
.care-path {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 32px;
  margin-top: 42px;
  padding: 0;
  list-style: none;
}
.care-path li {
  position: relative;
  min-width: 0;
}
.care-path li:not(:last-child)::after {
  content: '';
  position: absolute;
  top: 38px;
  left: 92px;
  right: 0;
  border-top: 1px solid #aac9da;
}
.care-path-symbol {
  display: grid;
  place-items: center;
  width: 76px;
  height: 76px;
  border: 1px solid #b7d0df;
  border-radius: 50%;
  color: var(--blue);
  background: white;
  margin-bottom: 22px;
}
.care-path li:last-child .care-path-symbol {
  background: var(--yellow);
  border-color: var(--yellow);
}
.care-path-symbol svg {
  width: 36px;
  height: 36px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.25;
}
.care-path h3 {
  font-size: 22px;
  margin-bottom: 12px;
}
.care-path p {
  font-size: 15px;
  line-height: 1.55;
  color: var(--copy);
}
.care-path-number {
  display: block;
  font-size: 12px;
  margin-bottom: 8px;
  color: var(--quiet);
}
.pack-year-equation {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  margin-block: 30px;
}
.pack-year-equation span {
  display: grid;
  gap: 8px;
  font-size: 12px;
}
.pack-year-equation strong {
  font-size: clamp(40px, 5vw, 70px);
  font-weight: 400;
  line-height: 1;
  letter-spacing: -0.05em;
}
.pack-year-equation b {
  font-size: 27px;
  font-weight: 300;
}
.pack-year-equation .equation-result {
  padding: 12px;
  background: var(--yellow);
  color: var(--blue-deep);
}
.pack-year-equation .equation-result strong {
  color: var(--blue-deep);
}

/* Radiation doses are shown on one proportional scale; no risk equivalence is implied. */
.dose-comparison {
  padding-block: 8px;
}
.dose-row + .dose-row {
  margin-top: 36px;
}
.dose-row > div:first-child {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 12px;
  margin-bottom: 12px;
  font-size: 14px;
}
.dose-row strong {
  font-size: 30px;
  font-weight: 400;
  white-space: nowrap;
}
.dose-track {
  height: 28px;
  background: white;
}
.dose-track span {
  display: block;
  height: 100%;
  background: var(--blue);
}
.dose-row:first-child .dose-track span {
  width: 24.5902%;
  background: var(--yellow);
}
.risk-comparison {
  display: grid;
  gap: 24px;
  margin-top: 30px;
}
.risk-row {
  display: grid;
  gap: 8px;
  font-size: 14px;
}
.risk-row strong {
  font-weight: 400;
  font-size: 28px;
}
.risk-bar {
  height: 25px;
  background: white;
}
.risk-bar span {
  display: block;
  height: 100%;
  background: var(--blue);
}
.risk-row:last-child .risk-bar span {
  background: var(--yellow);
}

/* Research is introduced through people, then aims and participation. */
.study-overview {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(28px, 5vw, 88px);
  align-items: center;
}
.study-overview > * {
  min-width: 0;
}
.study-detail h2 {
  font-size: clamp(34px, 4vw, 60px);
  line-height: 1.08;
  margin-bottom: 26px;
}
.study-detail > p {
  max-width: 640px;
  margin-top: 18px;
}
.study-detail .button-row > a {
  min-width: 180px;
}
.study-photograph img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 1.2;
  object-fit: cover;
}
.study-photograph figcaption {
  margin-top: 12px;
  font-size: 12px;
  color: var(--quiet);
}
.study-goal-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}
.study-goal-layout h2 {
  margin-bottom: 24px;
}
.study-goal-layout .figure-big-number {
  font-size: clamp(85px, 12vw, 180px);
}
.study-goal-caption {
  margin-top: 18px;
  max-width: 490px;
  font-size: 17px;
}
.study-dot-field {
  display: grid;
  grid-template-columns: repeat(10, 1fr);
  gap: clamp(5px, 0.8vw, 12px);
  max-width: 510px;
}
.study-dot-field span {
  aspect-ratio: 1;
  border-radius: 50%;
  background: var(--blue);
}
.study-dot-field span:nth-child(7n),
.study-dot-field span:nth-child(11n) {
  background: var(--yellow);
}
.study-dot-key {
  margin-top: 20px;
  font-size: 12px;
  color: var(--quiet);
}
.study-facts {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-top: 44px;
  padding-top: 24px;
  border-top: 1px solid #d8d8bc;
}
.study-facts dt {
  color: var(--quiet);
  font-size: 13px;
  margin-bottom: 10px;
}
.study-facts dd {
  margin: 0;
  font-size: clamp(20px, 2.3vw, 32px);
  letter-spacing: -0.03em;
}
.study-aims {
  list-style: none;
  padding: 0;
  counter-reset: study-aim;
}
.study-aims li {
  display: grid;
  grid-template-columns: 100px 1fr 1.1fr;
  gap: 32px;
  padding-block: 28px;
  border-top: 1px solid var(--line);
  counter-increment: study-aim;
}
.study-aims li::before {
  content: '0' counter(study-aim);
  font-size: 38px;
  line-height: 1.1;
  color: var(--blue);
  letter-spacing: -0.04em;
}
.study-aims h3 {
  font-size: 25px;
  line-height: 1.2;
}
.study-aims p {
  font-size: 16px;
}
.study-stories {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 36px;
}
.study-video-frame {
  display: flex;
  justify-content: center;
  background: var(--blue-soft);
  padding: 24px;
}
.study-stories video {
  display: block;
  width: min(100%, 300px);
  aspect-ratio: 9 / 16;
  background: var(--blue-soft);
  object-fit: contain;
}
.study-stories h3 {
  font-size: 24px;
  margin-top: 18px;
}
.study-stories p {
  margin-top: 9px;
  font-size: 14px;
}
.study-stories details {
  margin-top: 14px;
  font-size: 14px;
}
.study-stories summary {
  cursor: pointer;
  color: var(--blue);
}
.study-stories details p {
  line-height: 1.6;
}
.radon-scale {
  margin-top: 36px;
}
.radon-scale-track {
  height: 42px;
  display: grid;
  grid-template-columns: 1fr 1fr 2fr;
}
.radon-scale-track span:first-child {
  background: #c8e0ec;
}
.radon-scale-track span:nth-child(2) {
  background: var(--yellow);
}
.radon-scale-track span:last-child {
  background: var(--blue);
}
.radon-scale-labels {
  display: grid;
  grid-template-columns: 1fr 1fr 2fr;
  margin-top: 10px;
  font-size: 13px;
}
.radon-scale-labels strong {
  display: block;
  font-weight: 400;
  font-size: 28px;
  margin-bottom: 5px;
}
.relay-ribbons {
  display: flex;
  justify-content: space-around;
  gap: 20px;
  margin-block: 38px;
}
.relay-ribbons svg {
  width: min(12%, 90px);
  height: auto;
}
.relay-metrics {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 20px;
  margin: 0;
  border-top: 1px solid #d8d8bc;
  padding-top: 24px;
}
.relay-metrics > div {
  display: flex;
  flex-direction: column-reverse;
}
.relay-metrics dd {
  font-size: clamp(48px, 7vw, 96px);
  margin: 0;
  line-height: 1.2;
  letter-spacing: -0.06em;
}
.relay-metrics dt {
  font-size: 14px;
  color: var(--quiet);
  margin-top: 8px;
}
.quit-timeline {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 28px;
  list-style: none;
  padding: 0;
  margin-top: 48px;
}
.quit-timeline li {
  padding-top: 28px;
  border-top: 4px solid var(--blue);
  position: relative;
}
.quit-timeline li:last-child {
  border-color: var(--yellow);
}
.quit-timeline li::before {
  content: '';
  width: 13px;
  height: 13px;
  background: var(--blue);
  border-radius: 50%;
  position: absolute;
  top: -8px;
  left: 0;
}
.quit-timeline li:last-child::before {
  background: var(--yellow);
}
.quit-timeline strong {
  display: block;
  font-size: clamp(24px, 3vw, 42px);
  font-weight: 400;
  letter-spacing: -0.04em;
  margin-bottom: 14px;
}
.quit-timeline p {
  font-size: 15px;
  color: var(--copy);
}
@media (max-width: 900px) {
  .care-path {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    row-gap: 36px;
  }
  .care-path li:nth-child(2)::after {
    content: none;
  }
  .study-aims li {
    grid-template-columns: 55px 1fr 1fr;
    gap: 20px;
  }
  .study-goal-layout {
    gap: 32px;
  }
  .quit-timeline {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}
@media (max-width: 640px) {
  .study-detail .button-row > a {
    width: 100%;
  }
  .figure-split,
  .study-overview,
  .study-goal-layout,
  .study-stories {
    grid-template-columns: minmax(0, 1fr);
    gap: 32px;
  }
  .figure-section {
    padding-block: 0 40px;
  }
  .evidence-figure {
    padding: 24px 20px;
  }
  .care-path {
    grid-template-columns: minmax(0, 1fr);
    gap: 24px;
    margin-top: 32px;
  }
  .care-path li {
    padding-left: 78px;
    min-height: 100px;
  }
  .care-path-symbol {
    position: absolute;
    left: 0;
    top: 0;
    width: 56px;
    height: 56px;
  }
  .care-path-symbol svg {
    width: 28px;
    height: 28px;
  }
  .care-path li:not(:last-child)::after {
    display: block;
    top: 68px;
    bottom: -12px;
    left: 28px;
    right: auto;
    border-top: 0;
    border-left: 1px solid #aac9da;
  }
  .study-facts {
    grid-template-columns: minmax(0, 1fr);
    margin-top: 30px;
    gap: 18px;
  }
  .study-facts dt {
    margin-bottom: 3px;
  }
  .study-aims li {
    grid-template-columns: 42px 1fr;
    gap: 12px 18px;
  }
  .study-aims li p {
    grid-column: 2;
  }
  .study-aims h3 {
    font-size: 23px;
  }
  .study-aims li::before {
    font-size: 28px;
  }
  .study-dot-field {
    max-width: 420px;
    gap: 8px;
  }
  .age-comparison-label {
    align-items: center;
  }
  .age-comparison-label span {
    max-width: 155px;
  }
  .quit-timeline {
    gap: 30px 18px;
  }
  .radon-scale-labels {
    font-size: 11px;
    gap: 6px;
  }
  .radon-scale-labels strong {
    font-size: 23px;
  }
}