:root {
  --tc-paper: #f4f0e8;
  --tc-light: #fbfaf6;
  --tc-ink: #111311;
  --tc-soft: #555b57;
  --tc-graphite: #242625;
  --tc-blue: #102f4b;
  --tc-blue-soft: #c7d5dc;
  --tc-brass: #b37b31;
  --tc-line: rgba(17, 19, 17, 0.18);
  --tc-blue-line: rgba(16, 47, 75, 0.22);
  --tc-light-line: rgba(251, 250, 246, 0.22);
}

* { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
  scrollbar-color: var(--tc-blue) var(--tc-paper);
}

body.tartaro-design-preview {
  margin: 0;
  overflow-x: hidden;
  color: var(--tc-ink);
  background: var(--tc-paper);
  font-family: "Manrope", Arial, sans-serif;
}

body.tartaro-design-preview ::selection {
  color: var(--tc-light);
  background: var(--tc-brass);
}

body.tartaro-design-preview > .irp-tartaro-v1 {
  width: 100%;
  min-height: 0;
  padding: 0 !important;
}

.irp-tartaro-v1,
.irp-tartaro-v1 a,
.irp-tartaro-v1 button { font-family: "Manrope", Arial, sans-serif; }

.irp-tartaro-v1 h1,
.irp-tartaro-v1 h2,
.irp-tartaro-v1 h3,
.irp-tartaro-v1 p,
.irp-tartaro-v1 figure,
.irp-tartaro-v1 dl,
.irp-tartaro-v1 dd,
.irp-tartaro-v1 ol { margin: 0; }

.irp-tartaro-v1 h1,
.irp-tartaro-v1 h2,
.irp-tartaro-v1 h3,
.irp-tartaro-v1 dt {
  font-family: "Bodoni Moda", "Bodoni 72", Didot, serif;
  font-weight: 400;
}

.irp-tartaro-v1 h2 {
  max-width: 11.5ch;
  font-size: clamp(52px, 6vw, 86px);
  line-height: 0.98;
  letter-spacing: -0.035em;
  text-wrap: balance;
}

.irp-tartaro-v1 h3 {
  font-size: clamp(28px, 2.7vw, 42px);
  line-height: 1.03;
  letter-spacing: -0.025em;
}

.irp-tartaro-v1 p,
.irp-tartaro-v1 li,
.irp-tartaro-v1 dd {
  font-size: 17px;
  line-height: 1.68;
}

.irp-tartaro-v1 p > a,
.irp-tartaro-v1 li > a,
.irp-tartaro-v1 dd > a {
  margin-left: 0.18em;
  color: var(--tc-brass);
  font-size: 0.72em;
  font-weight: 700;
  text-underline-offset: 0.22em;
}

.irp-tartaro-v1 [id] { scroll-margin-top: 86px; }

.irp-tartaro-v1 a:focus-visible,
.irp-tartaro-v1 summary:focus-visible {
  outline: 3px solid var(--tc-brass);
  outline-offset: 4px;
}

.tc-action {
  display: inline-flex;
  align-items: center;
  justify-content: space-between;
  align-self: flex-start;
  min-height: 54px;
  padding: 0 22px;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-decoration: none;
  text-transform: uppercase;
  transition: color 180ms ease-out, background 180ms ease-out, transform 180ms ease-out;
}

.tc-action i {
  position: relative;
  width: 24px;
  height: 12px;
  margin-left: 24px;
}

.tc-action i::before,
.tc-action i::after {
  position: absolute;
  right: 0;
  content: "";
}

.tc-action i::before {
  top: 5px;
  width: 24px;
  border-top: 1px solid currentColor;
}

.tc-action i::after {
  top: 2px;
  width: 7px;
  height: 7px;
  border-top: 1px solid currentColor;
  border-right: 1px solid currentColor;
  transform: rotate(45deg);
}

.tc-action:hover { transform: translateY(-2px); }

.tc-action--deep {
  color: var(--tc-light);
  background: var(--tc-blue);
}

.tc-action--deep:hover {
  color: var(--tc-ink);
  background: var(--tc-brass);
}

/* A primeira dobra preserva literalmente a direção A aprovada. */
.tc-hero {
  display: grid;
  grid-template-columns: minmax(430px, 45%) minmax(0, 55%);
  min-height: max(760px, calc(100svh - 65px));
  overflow: hidden;
  background: var(--tc-light);
}

.tc-hero__copy {
  z-index: 2;
  display: flex;
  flex-direction: column;
  justify-content: center;
  min-width: 0;
  padding: 72px max(56px, calc((100vw - 1360px) / 2)) 52px max(68px, calc((100vw - 1360px) / 2));
}

.tc-hero h1 {
  max-width: 10.8ch;
  font-family: "Bodoni Moda", "Bodoni 72", Didot, serif;
  font-size: clamp(58px, 5vw, 82px);
  font-weight: 400;
  line-height: 0.96;
  letter-spacing: -0.04em;
  text-wrap: balance;
}

.tc-hero__copy > p:not(.tc-hero__note) {
  max-width: 44ch;
  margin-top: 28px;
  color: var(--tc-soft);
  font-size: clamp(17px, 1.2vw, 20px);
  line-height: 1.58;
}

.tc-hero__copy .tc-action { margin-top: 32px; }

.tc-hero__note {
  max-width: 390px;
  margin-top: auto !important;
  padding-top: 38px;
  color: var(--tc-soft);
  font-size: 12px !important;
  line-height: 1.45 !important;
}

.tc-hero__note strong {
  display: block;
  margin-bottom: 4px;
  color: var(--tc-brass);
  font-family: "Bodoni Moda", Didot, serif;
  font-size: 25px;
  font-weight: 400;
}

.tc-hero__note span { display: block; }

.tc-hero__figure {
  position: relative;
  min-width: 0;
  min-height: inherit;
  overflow: hidden;
  background: var(--tc-graphite);
}

.tc-hero__figure picture,
.tc-study__figure picture {
  display: block;
  width: 100%;
  height: 100%;
}

.tc-hero__figure img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: 50% 56%;
}

.tc-hero__figure figcaption {
  position: absolute;
  right: 20px;
  bottom: 16px;
  left: 20px;
  color: rgba(251, 250, 246, 0.78);
  font-size: 11px;
  line-height: 1.45;
  text-align: right;
  text-shadow: 0 1px 12px rgba(0, 0, 0, 0.72);
}

.tc-breadcrumb {
  display: flex;
  flex-wrap: wrap;
  gap: 9px;
  align-items: center;
  max-width: 1180px;
  margin: 0 auto;
  padding: 28px 24px;
  border-bottom: 1px solid var(--tc-line);
  color: var(--tc-soft);
  font-size: 12px;
  line-height: 1.5;
}

.tc-breadcrumb a {
  color: var(--tc-blue);
  text-underline-offset: 0.22em;
}

.tc-states {
  padding: clamp(104px, 12vw, 180px) max(24px, calc((100vw - 1180px) / 2));
  background: var(--tc-paper);
}

.tc-states > header {
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(280px, 0.75fr);
  gap: clamp(48px, 8vw, 120px);
  align-items: end;
}

.tc-states > header p {
  max-width: 38ch;
  padding-bottom: 10px;
  color: var(--tc-soft);
  font-size: clamp(18px, 1.6vw, 22px);
}

.tc-states dl {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1px;
  margin-top: clamp(72px, 8vw, 112px);
  background: var(--tc-line);
  border-top: 1px solid var(--tc-line);
  border-bottom: 1px solid var(--tc-line);
}

.tc-states dl > div {
  position: relative;
  min-height: 360px;
  padding: 58px clamp(32px, 5vw, 70px) 66px;
  background: var(--tc-light);
}

.tc-states dl > div::before {
  display: block;
  width: 88px;
  height: 8px;
  margin-bottom: 70px;
  background: var(--tc-blue-soft);
  content: "";
}

.tc-states dl > .tc-states__calculus::before {
  height: 14px;
  background: var(--tc-brass);
}

.tc-states dt {
  max-width: 12ch;
  font-size: clamp(34px, 3.7vw, 54px);
  line-height: 1;
  letter-spacing: -0.03em;
}

.tc-states dd {
  max-width: 46ch;
  margin-top: 28px;
  color: var(--tc-soft);
}

.tc-states__bridge {
  max-width: 38ch;
  margin: clamp(64px, 8vw, 104px) auto 0 !important;
  color: var(--tc-blue);
  font-family: "Bodoni Moda", Didot, serif;
  font-size: clamp(30px, 3.5vw, 48px) !important;
  line-height: 1.1 !important;
  text-align: center;
}

.tc-study {
  display: grid;
  grid-template-columns: minmax(420px, 46%) minmax(0, 54%);
  min-height: 880px;
  color: var(--tc-light);
  background: var(--tc-graphite);
}

.tc-study__copy {
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: clamp(88px, 10vw, 150px) max(52px, calc((100vw - 1360px) / 2)) clamp(88px, 10vw, 150px) max(68px, calc((100vw - 1360px) / 2));
}

.tc-study__copy h2 { max-width: 8.4ch; }

.tc-study__copy > p {
  max-width: 44ch;
  margin-top: 34px;
  color: rgba(251, 250, 246, 0.72);
}

.tc-study__copy dl {
  margin-top: 64px;
  border-top: 1px solid var(--tc-light-line);
}

.tc-study__copy dl > div {
  display: grid;
  grid-template-columns: minmax(120px, 0.38fr) minmax(0, 0.62fr);
  gap: 24px;
  padding: 22px 0 24px;
  border-bottom: 1px solid var(--tc-light-line);
}

.tc-study__copy dt {
  color: #d2a15c;
  font-family: "Manrope", Arial, sans-serif;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.tc-study__copy dd {
  color: rgba(251, 250, 246, 0.8);
  font-size: 15px;
  line-height: 1.55;
}

.tc-study__figure {
  position: relative;
  min-width: 0;
  overflow: hidden;
  background: #1f211f;
}

.tc-study__figure img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: 50% 33%;
  transform: scale(1.18);
}

.tc-study__figure figcaption {
  position: absolute;
  right: 28px;
  bottom: 22px;
  left: 28px;
  max-width: 48ch;
  margin-left: auto;
  color: rgba(251, 250, 246, 0.72);
  font-size: 11px;
  line-height: 1.45;
  text-align: right;
  text-shadow: 0 1px 12px rgba(0, 0, 0, 0.72);
}

.tc-evaluation {
  padding: clamp(108px, 12vw, 180px) max(24px, calc((100vw - 1180px) / 2));
  background: var(--tc-light);
}

.tc-evaluation > header {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(300px, 0.9fr);
  gap: clamp(48px, 8vw, 112px);
  align-items: end;
}

.tc-evaluation > header p {
  max-width: 42ch;
  padding-bottom: 8px;
  color: var(--tc-soft);
}

.tc-evaluation__field {
  position: relative;
  margin-top: clamp(80px, 9vw, 124px);
  padding: 24px 0;
}

.tc-evaluation__beam {
  position: absolute;
  top: 0;
  bottom: 0;
  left: 50%;
  width: 1px;
  background: var(--tc-blue-line);
}

.tc-evaluation__beam::before,
.tc-evaluation__beam::after {
  position: absolute;
  left: 50%;
  width: 13px;
  height: 13px;
  border: 1px solid var(--tc-blue);
  border-radius: 50%;
  background: var(--tc-light);
  content: "";
  transform: translate(-50%, -50%);
}

.tc-evaluation__beam::before { top: 0; }
.tc-evaluation__beam::after { top: 100%; background: var(--tc-brass); border-color: var(--tc-brass); }

.tc-evaluation__field dl {
  display: grid;
  grid-template-columns: 1fr 1fr;
  column-gap: clamp(90px, 12vw, 180px);
}

.tc-evaluation__field dl > div {
  min-height: 230px;
  padding: 30px 0 44px;
  border-top: 1px solid var(--tc-line);
}

.tc-evaluation__field dt {
  font-size: clamp(30px, 3vw, 42px);
  line-height: 1;
}

.tc-evaluation__field dd {
  max-width: 40ch;
  margin-top: 18px;
  color: var(--tc-soft);
}

.tc-difference {
  padding: clamp(108px, 12vw, 180px) max(24px, calc((100vw - 1180px) / 2));
  color: var(--tc-light);
  background: var(--tc-blue);
}

.tc-difference > header {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(56px, 10vw, 140px);
  align-items: end;
}

.tc-difference > header p {
  max-width: 42ch;
  padding-bottom: 10px;
  color: rgba(251, 250, 246, 0.74);
}

.tc-difference__rows {
  margin-top: clamp(76px, 9vw, 126px);
  border-top: 1px solid var(--tc-light-line);
}

.tc-difference__rows article {
  display: grid;
  grid-template-columns: minmax(240px, 0.7fr) minmax(300px, 1fr) minmax(260px, 0.72fr);
  gap: clamp(34px, 6vw, 86px);
  align-items: start;
  padding: 42px 0 46px;
  border-bottom: 1px solid var(--tc-light-line);
}

.tc-difference__rows article p { color: rgba(251, 250, 246, 0.76); }

.tc-difference__rows article strong {
  color: #d2a15c;
  font-size: 13px;
  font-weight: 600;
  line-height: 1.6;
}

.tc-process {
  padding: clamp(108px, 12vw, 180px) max(24px, calc((100vw - 1180px) / 2));
  background: var(--tc-paper);
}

.tc-process > header {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(290px, 0.85fr);
  gap: clamp(48px, 8vw, 120px);
  align-items: end;
}

.tc-process > header p {
  max-width: 40ch;
  padding-bottom: 10px;
  color: var(--tc-soft);
}

.tc-process ol {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
  margin-top: clamp(78px, 9vw, 126px);
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--tc-blue-line);
}

.tc-process li {
  position: relative;
  min-width: 0;
  padding: 38px clamp(20px, 2.4vw, 34px) 16px;
  border-right: 1px solid var(--tc-blue-line);
}

.tc-process li:first-child { padding-left: 0; }
.tc-process li:last-child { padding-right: 0; border-right: 0; }

.tc-process li::before {
  position: absolute;
  top: -7px;
  left: clamp(20px, 2.4vw, 34px);
  width: 13px;
  height: 13px;
  border: 1px solid var(--tc-blue);
  border-radius: 50%;
  background: var(--tc-paper);
  content: "";
}

.tc-process li:first-child::before { left: 0; background: var(--tc-brass); border-color: var(--tc-brass); }

.tc-process li > span {
  display: block;
  margin-bottom: 42px;
  color: var(--tc-brass);
  font-family: "Bodoni Moda", Didot, serif;
  font-size: 24px;
}

.tc-process li h3 { font-size: clamp(27px, 2.4vw, 36px); }

.tc-process li p {
  margin-top: 20px;
  color: var(--tc-soft);
  font-size: 15px;
  line-height: 1.62;
}

.tc-aftercare {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(280px, 0.6fr);
  grid-template-rows: auto auto;
  gap: 72px clamp(60px, 10vw, 150px);
  align-items: center;
  padding: clamp(110px, 12vw, 180px) max(24px, calc((100vw - 1180px) / 2));
  color: var(--tc-light);
  background: var(--tc-graphite);
}

.tc-aftercare__copy h2 { max-width: 10.2ch; }

.tc-aftercare__copy p {
  max-width: 56ch;
  margin-top: 34px;
  color: rgba(251, 250, 246, 0.72);
}

.tc-aftercare__orbit {
  position: relative;
  width: min(100%, 390px);
  aspect-ratio: 1;
  margin: auto;
}

.tc-aftercare__orbit i {
  position: absolute;
  inset: 0;
  border: 1px solid rgba(199, 213, 220, 0.38);
  border-radius: 50%;
}

.tc-aftercare__orbit i:nth-child(2) { inset: 16%; }
.tc-aftercare__orbit i:nth-child(3) { inset: 33%; border-color: rgba(179, 123, 49, 0.72); }

.tc-aftercare__orbit::before,
.tc-aftercare__orbit::after {
  position: absolute;
  z-index: 1;
  background: rgba(199, 213, 220, 0.28);
  content: "";
}

.tc-aftercare__orbit::before { top: 0; bottom: 0; left: 50%; width: 1px; }
.tc-aftercare__orbit::after { top: 50%; right: 0; left: 0; height: 1px; }

.tc-aftercare__orbit span {
  position: absolute;
  top: 50%;
  left: 50%;
  z-index: 2;
  width: 26px;
  height: 26px;
  border-radius: 50%;
  background: var(--tc-brass);
  box-shadow: 0 7px 24px rgba(0, 0, 0, 0.28);
  transform: translate(-50%, -50%);
}

.tc-motion-ready .tc-aftercare__orbit i,
.tc-motion-ready .tc-aftercare__orbit span {
  opacity: 0;
  transform: scale(0.86);
}

.tc-motion-ready .tc-aftercare__orbit span {
  transform: translate(-50%, -50%) scale(0.4);
}

.tc-motion-ready .tc-aftercare__orbit.is-visible i,
.tc-motion-ready .tc-aftercare__orbit.is-visible span {
  opacity: 1;
  transform: scale(1);
  transition: opacity 760ms cubic-bezier(0.16, 1, 0.3, 1), transform 1100ms cubic-bezier(0.16, 1, 0.3, 1);
}

.tc-motion-ready .tc-aftercare__orbit.is-visible i:nth-child(2) { transition-delay: 120ms; }
.tc-motion-ready .tc-aftercare__orbit.is-visible i:nth-child(3) { transition-delay: 240ms; }

.tc-motion-ready .tc-aftercare__orbit.is-visible span {
  transform: translate(-50%, -50%) scale(1);
  transition-delay: 320ms;
}

.tc-aftercare__close {
  grid-column: 1 / -1;
  padding-top: 50px;
  border-top: 1px solid var(--tc-light-line);
  color: #d2a15c;
  font-family: "Bodoni Moda", Didot, serif;
  font-size: clamp(34px, 4.2vw, 60px) !important;
  line-height: 1 !important;
  text-align: center;
}

.tc-interval {
  padding: clamp(108px, 12vw, 180px) max(24px, calc((100vw - 1180px) / 2));
  background: var(--tc-light);
}

.tc-interval > header {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(300px, 0.9fr);
  gap: clamp(48px, 8vw, 118px);
  align-items: end;
}

.tc-interval > header p {
  max-width: 48ch;
  padding-bottom: 8px;
  color: var(--tc-soft);
}

.tc-interval dl {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(52px, 8vw, 120px);
  margin-top: clamp(76px, 9vw, 126px);
}

.tc-interval dl > div {
  padding-top: 34px;
  border-top: 1px solid var(--tc-line);
}

.tc-interval dt {
  max-width: 14ch;
  font-size: clamp(30px, 3vw, 42px);
  line-height: 1.03;
}

.tc-interval dd {
  max-width: 44ch;
  margin-top: 24px;
  color: var(--tc-soft);
}

.tc-fluoride {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(300px, 0.85fr);
  gap: clamp(64px, 10vw, 150px);
  align-items: center;
  padding: clamp(104px, 11vw, 166px) max(24px, calc((100vw - 1180px) / 2));
  color: var(--tc-light);
  background: var(--tc-blue);
}

.tc-fluoride h2 { max-width: 9ch; }

.tc-fluoride div > p {
  max-width: 58ch;
  margin-top: 34px;
  color: rgba(251, 250, 246, 0.74);
}

.tc-fluoride__statement {
  padding: 44px 0 12px;
  border-top: 1px solid var(--tc-light-line);
  color: #d2a15c;
  font-family: "Bodoni Moda", Didot, serif;
  font-size: clamp(31px, 3.8vw, 50px) !important;
  line-height: 1.08 !important;
}

.tc-routes {
  padding: clamp(108px, 12vw, 180px) max(24px, calc((100vw - 1180px) / 2));
  background: var(--tc-paper);
}

.tc-routes > header {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(300px, 0.9fr);
  gap: clamp(48px, 8vw, 118px);
  align-items: end;
}

.tc-routes > header p {
  max-width: 42ch;
  padding-bottom: 8px;
  color: var(--tc-soft);
}

.tc-routes nav {
  margin-top: clamp(76px, 9vw, 126px);
  border-top: 1px solid var(--tc-line);
}

.tc-routes nav a {
  position: relative;
  display: grid;
  grid-template-columns: 0.8fr 1.3fr 42px;
  gap: 32px;
  align-items: center;
  min-height: 132px;
  padding: 22px 0;
  border-bottom: 1px solid var(--tc-line);
  color: var(--tc-ink);
  text-decoration: none;
  transition: color 180ms ease-out, transform 180ms ease-out;
}

.tc-routes nav a:hover {
  color: var(--tc-blue);
  transform: translateX(8px);
}

.tc-routes nav span {
  color: var(--tc-soft);
  font-size: 14px;
}

.tc-routes nav strong {
  font-family: "Bodoni Moda", Didot, serif;
  font-size: clamp(30px, 3.8vw, 52px);
  font-weight: 400;
  line-height: 1;
}

.tc-routes nav i {
  position: relative;
  display: block;
  width: 34px;
  height: 18px;
}

.tc-routes nav i::before,
.tc-routes nav i::after {
  position: absolute;
  right: 0;
  content: "";
}

.tc-routes nav i::before { top: 8px; width: 34px; border-top: 1px solid currentColor; }
.tc-routes nav i::after { top: 4px; width: 9px; height: 9px; border-top: 1px solid currentColor; border-right: 1px solid currentColor; transform: rotate(45deg); }

.tc-faq {
  padding: clamp(108px, 12vw, 180px) max(24px, calc((100vw - 1180px) / 2));
  background: var(--tc-light);
}

.tc-faq > h2 { max-width: 8ch; }

.tc-faq__list {
  margin-top: clamp(70px, 8vw, 110px);
  border-top: 1px solid var(--tc-line);
}

.tc-faq details { border-bottom: 1px solid var(--tc-line); }

.tc-faq summary {
  position: relative;
  padding: 34px 72px 34px 0;
  cursor: pointer;
  font-family: "Bodoni Moda", "Bodoni 72", Didot, serif;
  font-size: clamp(27px, 3vw, 40px);
  line-height: 1.08;
  list-style: none;
}

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

.tc-faq summary::before,
.tc-faq summary::after {
  position: absolute;
  top: 50%;
  right: 4px;
  width: 26px;
  border-top: 1px solid var(--tc-blue);
  content: "";
  transition: transform 180ms ease-out;
}

.tc-faq summary::after { transform: rotate(90deg); }
.tc-faq details[open] summary::after { transform: rotate(0); }

.tc-faq details p {
  max-width: 68ch;
  padding: 0 72px 34px 0;
  color: var(--tc-soft);
}

.tc-closing {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: clamp(70px, 10vw, 150px);
  align-items: end;
  padding: clamp(108px, 12vw, 180px) max(24px, calc((100vw - 1180px) / 2));
  color: var(--tc-light);
  background: var(--tc-graphite);
}

.tc-closing h2 { max-width: 13ch; }

.tc-closing p {
  max-width: 54ch;
  margin-top: 32px;
  color: rgba(251, 250, 246, 0.72);
}

.tc-action--amber {
  color: var(--tc-ink);
  background: var(--tc-brass);
}

.tc-action--amber:hover {
  color: var(--tc-blue);
  background: var(--tc-light);
}

.tc-references {
  padding: clamp(96px, 10vw, 150px) max(24px, calc((100vw - 1180px) / 2));
  background: var(--tc-paper);
}

.tc-references > header {
  display: grid;
  grid-template-columns: minmax(0, 0.8fr) minmax(300px, 1.2fr);
  gap: clamp(48px, 8vw, 120px);
  align-items: end;
}

.tc-references h2 {
  max-width: 12ch;
  font-size: clamp(44px, 5vw, 70px);
}

.tc-references > header p {
  max-width: 54ch;
  color: var(--tc-soft);
}

.tc-references__review {
  margin-top: 54px !important;
  padding: 22px 0;
  border-top: 1px solid var(--tc-line);
  border-bottom: 1px solid var(--tc-line);
  color: var(--tc-blue);
  font-size: 14px !important;
  font-weight: 600;
}

.tc-references ol {
  max-width: 980px;
  margin-top: 44px;
  padding-left: 24px;
}

.tc-references li {
  margin-top: 24px;
  padding-left: 10px;
  color: var(--tc-soft);
  font-size: 14px;
  line-height: 1.65;
}

.tc-references li a {
  color: var(--tc-blue);
  font-weight: 600;
  text-underline-offset: 0.22em;
}

@media (max-width: 980px) {
  .tc-states > header,
  .tc-evaluation > header,
  .tc-difference > header,
  .tc-process > header,
  .tc-interval > header,
  .tc-routes > header,
  .tc-references > header {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .tc-study { grid-template-columns: 1fr 1fr; }
  .tc-study__copy { padding-right: 44px; padding-left: 44px; }

  .tc-difference__rows article {
    grid-template-columns: minmax(220px, 0.7fr) minmax(0, 1fr);
  }

  .tc-difference__rows article strong { grid-column: 2; }

  .tc-process ol { grid-template-columns: 1fr 1fr; }
  .tc-process li:nth-child(2) { border-right: 0; }
  .tc-process li:nth-child(n + 3) { border-top: 1px solid var(--tc-blue-line); }
  .tc-process li:nth-child(3) { padding-left: 0; }
  .tc-process li:nth-child(3)::before { left: 0; }

  .tc-closing { grid-template-columns: 1fr; align-items: start; }
}

@media (max-width: 900px) {
  .tc-hero {
    grid-template-columns: 1fr;
    grid-template-rows: auto minmax(520px, 70svh);
    min-height: calc(100svh - 65px);
    overflow: visible;
  }

  .tc-hero__copy {
    grid-column: 1;
    grid-row: 1;
    padding: 88px 24px 50px;
  }

  .tc-hero__figure {
    grid-column: 1;
    grid-row: 2;
    min-height: 0;
  }

  .tc-hero h1 {
    max-width: 11.5ch;
    font-size: clamp(46px, 12.2vw, 60px);
    line-height: 0.98;
  }

  .tc-hero__copy > p:not(.tc-hero__note) {
    max-width: 39ch;
    margin-top: 24px;
    font-size: 17px;
    line-height: 1.55;
  }

  .tc-hero__copy .tc-action {
    width: min(100%, 330px);
    margin-top: 28px;
  }

  .tc-hero__note { display: none; }
  .tc-hero__figure img { object-position: 50% 50%; }
  .tc-hero__figure figcaption { text-align: center; }

  .tc-study {
    grid-template-columns: 1fr;
    min-height: 0;
  }

  .tc-study__copy {
    padding: 96px 24px;
  }

  .tc-study__figure {
    height: min(120vw, 760px);
  }

  .tc-study__figure img {
    object-position: 50% 32%;
    transform: scale(1.08);
  }

  .tc-evaluation__beam { display: none; }

  .tc-evaluation__field dl {
    grid-template-columns: 1fr 1fr;
    column-gap: 44px;
  }

  .tc-difference__rows article {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .tc-difference__rows article strong { grid-column: auto; }

  .tc-aftercare,
  .tc-fluoride {
    grid-template-columns: 1fr;
  }

  .tc-aftercare__orbit { width: min(82vw, 390px); }

  .tc-routes nav a {
    grid-template-columns: 1fr 40px;
    gap: 8px 20px;
    min-height: 140px;
  }

  .tc-routes nav span { grid-column: 1; }
  .tc-routes nav strong { grid-column: 1; }
  .tc-routes nav i { grid-column: 2; grid-row: 1 / 3; }
}

@media (max-width: 680px) {
  .irp-tartaro-v1 h2 {
    max-width: 11ch;
    font-size: clamp(43px, 12vw, 60px);
    line-height: 0.99;
  }

  .irp-tartaro-v1 p,
  .irp-tartaro-v1 li,
  .irp-tartaro-v1 dd { font-size: 16px; }

  .tc-breadcrumb { padding: 22px 20px; }

  .tc-states,
  .tc-evaluation,
  .tc-difference,
  .tc-process,
  .tc-aftercare,
  .tc-interval,
  .tc-fluoride,
  .tc-routes,
  .tc-faq,
  .tc-closing,
  .tc-references {
    padding-right: 20px;
    padding-left: 20px;
  }

  .tc-states dl {
    grid-template-columns: 1fr;
  }

  .tc-states dl > div {
    min-height: 0;
    padding: 42px 24px 48px;
  }

  .tc-states dl > div::before { margin-bottom: 46px; }

  .tc-states__bridge { max-width: 16ch; }

  .tc-study__copy { padding: 92px 20px; }

  .tc-study__copy dl > div {
    grid-template-columns: 1fr;
    gap: 10px;
  }

  .tc-study__figure { height: 130vw; max-height: 690px; min-height: 500px; }

  .tc-study__figure figcaption {
    right: 20px;
    left: 20px;
    text-align: center;
  }

  .tc-evaluation__field dl { grid-template-columns: 1fr; }

  .tc-evaluation__field dl > div { min-height: 0; padding: 30px 0 38px; }

  .tc-process ol {
    grid-template-columns: 1fr;
    border-top: 0;
  }

  .tc-process li,
  .tc-process li:first-child,
  .tc-process li:nth-child(3),
  .tc-process li:last-child {
    display: grid;
    grid-template-columns: 50px 1fr;
    gap: 22px;
    padding: 30px 0 34px;
    border-top: 1px solid var(--tc-blue-line);
    border-right: 0;
  }

  .tc-process li::before { display: none; }
  .tc-process li > span { margin: 0; }
  .tc-process li p { margin-top: 14px; }

  .tc-aftercare { gap: 64px; }

  .tc-aftercare__close {
    padding-top: 40px;
    text-align: left;
  }

  .tc-interval dl {
    grid-template-columns: 1fr;
    gap: 50px;
  }

  .tc-fluoride__statement { padding-top: 34px; }

  .tc-routes nav a { min-height: 126px; }
  .tc-routes nav strong { font-size: 34px; }

  .tc-faq summary {
    padding: 28px 52px 28px 0;
    font-size: 29px;
  }

  .tc-faq details p { padding: 0 28px 28px 0; }

  .tc-closing .tc-action { width: min(100%, 330px); }

  .tc-references ol { padding-left: 20px; }
}

@media (max-width: 420px) {
  .tc-hero__copy { padding: 82px 20px 46px; }
  .tc-hero h1 { font-size: clamp(43px, 11.5vw, 50px); }
  .tc-hero__copy > p:not(.tc-hero__note) { font-size: 16px; }
  .tc-hero { grid-template-rows: auto minmax(500px, 68svh); }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .tc-action,
  .tc-routes nav a,
  .tc-faq summary::after { transition: none; }
}