@media (min-width: 1700px) {

:root {
  --gutter: max(80px, calc((100vw - 1680px) / 2));
}

.science-visual {
  height: 430px;
}

.step-visual {
  height: 225px;
}
}
@media (max-width: 1199px) {

.site-header {
  grid-template-columns: 1fr auto;
}

.desktop-nav, .account-link {
  display: none;
}

.menu-button {
  display: inline-flex;
  width: 44px;
  height: 44px;
  align-items: center;
  justify-content: center;
}

.mobile-nav {
  position: fixed;
  z-index: 40;
  inset: 0;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 100px var(--gutter) 40px;
  background: #071006;
  opacity: 0;
  visibility: hidden;
  transition: opacity 200ms, visibility 200ms;
}

.mobile-nav.is-open {
  opacity: 1;
  visibility: visible;
}

.mobile-nav > a {
  padding: 16px 0;
  border-bottom: 1px solid var(--line);
  font-family: "Instrument Serif", Georgia, serif;
  font-size: clamp(30px, 5vw, 48px);
}

.mobile-nav .mobile-account-link {
  margin-top: 20px;
  display: flex;
  align-items: center;
  gap: 12px;
  border: 0;
  font-family: inherit;
  font-size: 16px;
}

.hero-content {
  width: 48%;
}

.hero-content h1 {
  font-size: clamp(64px, 8vw, 90px);
}

.results-track {
  grid-auto-columns: calc((100% - 32px) / 3);
}

.science-section {
  grid-template-columns: 27fr 73fr;
  gap: 24px;
}

.science-art {
  inset-inline: -32%;
}

.process-steps {
  gap: 10px;
}

.process-steps h3 {
  font-size: 21px;
}

.step-card-copy {
  padding: 14px 12px;
}

.step-visual {
  height: 165px;
}
}
@media (max-width: 1023px) {

.payment-section {
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}

.purchase-story {
  padding-top: 0;
}

.purchase-copy {
  padding-right: 0;
}

.payment-pen {
  display: none;
}

.purchase-copy h2 {
  font-size: 46px;
}

.checkout-panel {
  padding: 22px;
}

.plan-option {
  padding: 18px 14px;
  gap: 10px;
}

.plan-option-single .plan-details {
  flex-direction: column;
  align-items: start;
}

.plan-name {
  font-size: 14px;
}

.hero-content {
  top: 42%;
}

.hero-art {
  right: -12%;
}

.hero-content h1 {
  font-size: 72px;
}

.hero-summary {
  font-size: 15px;
}

.hero-actions {
  flex-wrap: wrap;
}

.action {
  width: 170px;
  padding-inline: 20px 44px;
}

.science-section {
  display: block;
  padding-block: 60px;
}

.science-visual {
  position: absolute;
  z-index: -1;
  width: 330px;
  height: 270px;
  right: 0;
  top: 24px;
  opacity: .52;
}

.science-art {
  inset: auto;
  left: 0;
  width: 100%;
  top: 50%;
}

.science-panel h2 {
  max-width: 540px;
}

.science-intro {
  max-width: 590px;
}

.pathway-card {
  background: rgb(12 24 10 / 90%);
}

.results-heading {
  display: block;
}

.results-heading p {
  margin-top: 18px;
  max-width: 600px;
}

.results-track {
  grid-auto-columns: calc((100% - 16px) / 2);
}

.process-steps {
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.step-card-copy {
  min-height: 102px;
  padding: 16px;
}

.step-visual {
  height: 160px;
}

.process-intro h2 {
  font-size: 56px;
}

.process-product {
  height: 190px;
}

.process-product picture {
  height: 280px;
  width: 170px;
}

.faq-section {
  grid-template-columns: 1fr;
  gap: 32px;
}

.faq-intro {
  position: static;
}

.faq-intro h2 br {
  display: none;
}

.faq-intro > p {
  max-width: 520px;
}

.footer-main {
  grid-template-columns: 1fr 1fr;
}

.back-to-top {
  justify-self: start;
}

.footer-legal {
  flex-direction: column;
  align-items: start;
  gap: 16px;
}

.footer-legal > span {
  max-width: none;
}

.mouse-icon{
  display: none;
}

.touch-icon{
  display: block;
}
}
/* Mobile is content-sized, with no fixed heights on text-bearing sections. */
@media (max-width: 600px) {

:root {
  --gutter: 24px;
  --section-space: 44px;
}

html {
  scroll-padding-top: 72px;
}

.site-header {
  height: 76px;
}

.site-header.is-scrolled {
  height: 64px;
}

.brand {
  gap: 10px;
  font-size: 13px;
  letter-spacing: .28em;
}

.brand-mark {
  width: 30px;
  height: 30px;
}

.hero {
  height: 100svh;
  min-height: 760px;
  max-height: 1000px;
}

.hero-content {
  left: var(--gutter);
  right: var(--gutter);
  width: auto;
  top: 102px;
  transform: none;
}

.hero-kicker {
  margin-bottom: 22px;
  font-size: 10px;
  letter-spacing: .23em;
  line-height: 1.65;
}

.hero-content h1 {
  margin-bottom: 22px;
  font-size: clamp(60px, 17.3vw, 96px);
  line-height: .86;
}

.hero-summary {
  max-width: 430px;
  font-size: 14px;
  line-height: 1.6;
}

.hero-actions {
  gap: 10px;
  margin-top: 22px;
  flex-wrap: nowrap;
}

.action {
  flex: 1;
  width: auto;
  min-height: 50px;
  padding: 0 36px 0 16px;
  font-size: 10px;
  letter-spacing: .1em;
}

.action span {
  right: 16px;
}

.hero-art {
  width: 163%;
  top: auto;
  right: -5%;
  bottom: 40px;
  transform: none;
  mask-image: linear-gradient(180deg, transparent, rgb(0 0 0 / 12%) 8%, rgb(0 0 0 / 65%) 20%, #000 34%, #000 78%, transparent);
}

.hero-shade {
  background: linear-gradient(180deg, rgb(3 7 3 / 12%), transparent 47%, transparent 80%, var(--black)), radial-gradient(ellipse at 10% 15%, rgb(3 7 3 / 60%), transparent 85%);
}

.scroll-cue {
  left: var(--gutter);
  bottom: 72px;
  gap: 10px;
  font-size: 9px;
}

.mouse-icon {
  display: none;
}

.touch-icon {
  display: block;
}

.cue-line {
  width: 24px;
}

.clinical-disclosure {
  left: var(--gutter);
  right: var(--gutter);
  bottom: 22px;
  max-width: none;
  font-size: 10px;
  line-height: 1.5;
  text-align: left;
}

.science-section {
  padding-block: 44px;
}

.science-visual {
  top: 24px;
  right: 0;
  width: 235px;
  height: 200px;
  opacity: .65;
}

.science-art {
  inset: auto;
  left: 0;
  width: 100%;
  top: 50%;
}

.science-panel h2, .results-heading h2, .purchase-copy h2, .process-intro h2, .faq-intro h2 {
  font-size: clamp(42px, 12.1vw, 60px);
  line-height: .98;
  margin: 14px 0 16px;
}

.science-panel h2 {
  max-width: 360px;
  text-shadow: 0 2px 24px var(--black);
}

.science-intro {
  margin-bottom: 18px;
  font-size: 13px;
  line-height: 1.55;
  color: #d0d5c7;
}

.pathway-list {
  gap: 7px;
}

.pathway-card {
  min-height: 76px;
  padding: 12px 34px 12px 12px;
  grid-template-columns: 32px minmax(0, 1fr);
  gap: 10px;
}

.pathway-icon {
  width: 30px;
  height: 38px;
}

.pathway-icon svg {
  width: 21px;
  height: 21px;
}

.pathway-copy {
  gap: 4px;
}

.pathway-copy strong {
  font-size: 23px;
}

.pathway-copy > span:not(.pathway-detail) {
  font-size: 12px;
  line-height: 1.4;
}

.pathway-detail {
  font-size: 12px;
}

.evidence-heading {
  margin: 20px 0 12px;
  font-size: 9px;
  letter-spacing: .1em;
}

.evidence-grid {
  gap: 10px;
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.evidence-card {
  padding-left: 8px;
}

.evidence-card:first-child {
  border-left: 0;
  padding-left: 0;
}

.evidence-card strong {
  font-size: clamp(27px, 7.6vw, 34px);
  letter-spacing: -.035em;
}

.evidence-card span {
  margin-top: 6px;
  font-size: 10px;
  line-height: 1.4;
}

.evidence-card .evidence-meta {
  display: none;
}

.science-sources {
  margin-top: 14px;
  padding-top: 12px;
  gap: 8px;
}

.science-sources p {
  font-size: 10px;
  line-height: 1.5;
}

.results-section {
  padding-inline: 0;
}

.results-heading {
  padding-inline: var(--gutter);
}

.results-heading h2 br {
  display: inline;
}

.results-heading p {
  margin-top: 16px;
  font-size: 13px;
  line-height: 1.55;
}

.results-carousel {
  margin-top: 22px;
}

.results-track {
  grid-auto-columns: calc(100vw - 80px);
  gap: 14px;
  padding: 2px 40px 8px;
  scroll-padding-inline: 40px;
}

.result-card {
  scroll-snap-align: center;
}

.result-profile-meta {
  min-height: 54px;
  padding: 10px 104px 10px 16px;
}

.result-visual {
  aspect-ratio: 1.13 / 1;
}

.result-card blockquote {
  min-height: 84px;
  padding: 13px 16px 16px 34px;
  font-size: 12px;
  line-height: 1.55;
}

.comparison-labels {
  left: 20%;
  right: 20%;
  gap: 12px;
  font-size: 9px;
}

.results-arrow-prev {
  left: 17px;
}

.results-arrow-next {
  right: 17px;
}

.results-pagination {
  margin-top: 2px;
}

.results-disclosure {
  padding-inline: var(--gutter);
  display: block;
  margin-top: 2px;
  font-size: 10px;
}

.results-disclosure a {
  display: inline-block;
  margin-top: 8px;
}

.payment-section {
  display: block;
  padding-block: 36px;
}

.purchase-story {
  padding: 0;
}

.purchase-copy {
  padding: 0;
}

.purchase-copy h2 {
  max-width: 370px;
}

.purchase-copy > p {
  font-size: 12px;
  line-height: 1.5;
}

.plan-selector {
  grid-template-columns: 1.15fr .85fr;
  gap: 10px;
  margin-top: 22px;
  align-items: stretch;
}

.plan-option {
  grid-template-columns: 1fr;
  gap: 10px;
  padding: 14px 12px;
  border-radius: 10px;
}

.plan-radio {
  width: 17px;
  height: 17px;
  margin: 0;
}

.plan-name {
  font-size: 13px;
  line-height: 1.35;
}

.plan-subtitle {
  font-size: 10px;
  line-height: 1.4;
}

.plan-price {
  font-size: 10px;
  margin-top: 10px;
}

.plan-price strong {
  font-size: 28px;
}

.plan-benefits {
  gap: 6px;
  margin-top: 10px;
  padding-top: 10px;
  font-size: 10px;
  line-height: 1.4;
}

.plan-benefits > span {
  gap: 5px;
  align-items: start;
}

.plan-benefits svg {
  width: 12px;
  height: 14px;
}

.plan-badge {
  right: 10px;
  font-size: 9px;
  padding: 4px 9px;
}

.plan-option-single {
  align-content: start;
  align-items: start;
}

.plan-option-single .plan-details {
  display: flex;
  gap: 10px;
}

.plan-option-single .plan-price {
  white-space: normal;
}

.plan-option-single .plan-price strong {
  display: block;
  margin-bottom: 4px;
  font-size: 28px;
}

.plan-status {
  margin-top: 12px;
  font-size: 10px;
  line-height: 1.5;
}

.payment-form-wrap {
  margin-top: 20px;
}

.checkout-panel {
  padding: 18px;
  border-radius: 12px;
}

.checkout-intro h3 {
  font-size: 27px;
}

.checkout-intro p {
  font-size: 11px;
}

.prototype-pill {
  margin-bottom: 6px;
  font-size: 9px;
}

.checkout-details {
  margin-top: 16px;
}

.checkout-details summary {
  min-height: 56px;
  padding-block: 10px;
  font-size: 13px;
}

.checkout-panel input, .checkout-panel select {
  height: 48px;
  font-size: 16px;
}

.checkout-panel label {
  font-size: 12px;
}

.checkout-grid {
  grid-template-columns: 1fr;
  gap: 14px;
}

.checkout-field-wide {
  grid-column: auto;
}

.card-fields .checkout-field-wide {
  grid-column: 1 / -1;
}

.card-fields {
  margin-top: 16px;
}

.card-brand-logos {
  display: none;
}

.card-number-control input {
  padding-right: 12px;
}

.order-summary {
  margin-top: 14px;
}

.order-summary h3 {
  display: none;
}

.order-summary dl {
  margin-top: 0;
  gap: 8px;
}

.order-summary dl div {
  font-size: 12px;
}

.order-summary dl div:last-child {
  padding-top: 8px;
}

.order-caption {
  margin-top: 6px;
  font-size: 10px;
}

.checkout-submit {
  min-height: 50px;
  margin-top: 14px;
  font-size: 12px;
}

.checkout-legal {
  margin-top: 12px;
  font-size: 10px;
  line-height: 1.5;
}

.process-intro {
  display: block;
  position: relative;
}

.process-intro > div:first-child > p {
  max-width: 370px;
  font-size: 13px;
}

.process-product {
  position: absolute;
  top: -8px;
  right: -24px;
  width: 135px;
  height: 150px;
  opacity: .35;
  z-index: -1;
}

.process-product picture {
  height: 200px;
  width: 120px;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%) rotate(-25deg);
}

.process-step-tabs {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 6px;
  margin-top: 24px;
}

.process-step-tabs button {
  display: flex;
  flex-direction: column;
  align-items: start;
  gap: 9px;
  padding: 10px 5px 12px;
  min-height: 76px;
  color: var(--muted);
  background: transparent;
  border: 0;
  border-bottom: 1px solid var(--line);
  text-align: left;
  font-size: 11px;
  line-height: 1.3;
}

.process-step-tabs button > span {
  color: #a6b697;
  font-size: 12px;
}

.process-step-tabs button[aria-pressed="true"] {
  border-color: var(--lime);
  color: var(--ivory);
}

.process-step-tabs button[aria-pressed="true"] > span {
  color: var(--lime);
}

.process-steps {
  display: block;
  margin-top: 16px;
}

.process-steps li {
  display: none;
}

.process-steps li.is-active {
  display: flex;
}

.step-card-copy {
  min-height: 98px;
  padding: 16px;
}

.process-steps h3 {
  font-size: 27px;
}

.step-card-copy > p {
  margin-top: 10px;
  font-size: 12px;
}

.step-visual {
  height: clamp(170px, 24svh, 230px);
}

.step-note {
  min-height: 58px;
  padding: 12px 16px;
  font-size: 11px;
}

.process-disclosure {
  display: block;
  margin-top: 16px;
  font-size: 10px;
  line-height: 1.5;
}

.process-disclosure p {
  margin-top: 5px;
}

.faq-section {
  gap: 28px;
}

.faq-intro h2 br {
  display: inline;
}

.faq-intro > p {
  font-size: 13px;
}

.faq-evidence-link {
  margin-top: 20px;
}

.faq-item h3 button {
  min-height: 62px;
  font-size: 13px;
  gap: 18px;
}

.faq-answer p {
  font-size: 12px;
  line-height: 1.6;
  padding-right: 26px;
}

.site-footer {
  padding-top: 32px;
}

.footer-main {
  grid-template-columns: 1fr;
  gap: 24px;
}

.footer-contact { gap: 12px 24px; }

.footer-legal {
  gap: 14px;
}

.footer-rule {
  margin: 24px 0 20px;
}

.plan-inclusions{
  margin-top: 6px;
}

.plan-inclusions summary{
  font-size: 11px;
}

.plan-inclusions .plan-benefits{
  font-size: 12px;
}
}
@media (max-width: 374px) {

:root {
  --gutter: 20px;
}

.hero-content {
  top: 94px;
}

.hero-content h1 {
  font-size: 58px;
}

.hero-kicker {
  margin-bottom: 18px;
  font-size: 9px;
}

.hero-summary {
  font-size: 13px;
}

.action {
  padding-left: 12px;
  font-size: 9px;
}

.hero-art {
  width: 170%;
}

.evidence-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.evidence-card span {
  max-width: none;
}

.results-track {
  grid-auto-columns: calc(100vw - 64px);
  padding-inline: 32px;
  scroll-padding-inline: 32px;
}

.results-arrow-prev {
  left: 10px;
}

.results-arrow-next {
  right: 10px;
}

.plan-selector {
  grid-template-columns: 1fr 1fr;
}

.plan-option {
  padding-inline: 10px;
}
}
@media (prefers-reduced-motion: reduce) {

html {
  scroll-behavior: auto;
}

/* Keep the first mobile payment screen focused on selection and continuation. */

*, *::before, *::after {
  animation: none !important;
  transition: none !important;
}
}

.checkout-description{
  margin: 0 0 18px;
  color: var(--muted);
  font-size: 12px;
  line-height: 1.5;
}

.plan-inclusions{
  position: relative;
  z-index: 1;
  margin-top: 12px;
  border-bottom: 1px solid var(--line);
}

.plan-inclusions summary{
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 44px;
  list-style: none;
  font-size: 12px;
  color: var(--muted);
}

.plan-inclusions summary::-webkit-details-marker{
  display: none;
}

.plan-inclusions summary > span{
  color: var(--lime);
  font-size: 20px;
  transition: transform 180ms;
}

.plan-inclusions[open] summary > span{
  transform: rotate(45deg);
}

.plan-inclusions .plan-benefits{
  margin-top: 0;
  padding-bottom: 16px;
  border-top: 0;
}

.process-steps li:last-child .step-visual img{
  object-fit: contain;
  transform: scale(1.2);
}

.process-steps li:last-child:hover .step-visual img{
  transform: scale(1.2);
}
@media (min-width: 601px) and (max-width: 1023px){

.hero-content{
  top: 132px;
  transform: none;
  width: 70%;
}

.hero-content h1{
  font-size: clamp(80px, 11vw, 108px);
}

.hero-summary{
  max-width: 475px;
}

.hero-art{
  width: 130%;
  right: -3%;
  top: auto;
  bottom: 24px;
  transform: none;
  mask-image: linear-gradient(180deg, transparent, #000 14%, #000 78%, transparent);
}

.hero-shade{
  background: linear-gradient(180deg, rgb(3 7 3 / 20%), transparent 75%, var(--black));
}
}
@media (max-width: 600px) {
  .plan-option .plan-radio { position: absolute; top: 14px; left: 12px; }
  .plan-option .plan-name { padding-left: 24px; }
  .plan-selector { margin-top: 18px; }
  .checkout-intro > div { display: flex; flex-direction: row-reverse; align-items: center; gap: 12px; width: 100%; justify-content: space-between; }
  .checkout-intro h3 { font-size: 25px; }
  .checkout-intro .prototype-pill { margin: 0; max-width: 72px; font-size: 8px; text-align: right; line-height: 1.5; }
  .checkout-step { display: none; }
}
.results-pagination[hidden] { display: none; }

/* Entrances are activated by one observer; unenhanced content stays visible. */
[data-reveal] {
  --entrance-delay: 0ms;
  transition: opacity 520ms ease var(--entrance-delay), translate 620ms cubic-bezier(.2,.7,.2,1) var(--entrance-delay), scale 700ms cubic-bezier(.2,.7,.2,1) var(--entrance-delay);
}
[data-reveal-delay="1"] { --entrance-delay: 55ms; }
[data-reveal-delay="2"] { --entrance-delay: 110ms; }
[data-reveal-delay="3"] { --entrance-delay: 165ms; }
[data-reveal-state="pending"] { opacity: 0; translate: 0 15px; }
[data-reveal="heading"][data-reveal-state="pending"] { translate: 0 22px; }
[data-reveal="fade"][data-reveal-state="pending"] { translate: none; }
[data-reveal="media"][data-reveal-state="pending"] { translate: 0 10px; scale: .975; }
[data-reveal-state="visible"] { opacity: 1; translate: none; scale: 1; }
[data-reveal]:focus-within { opacity: 1; translate: none; scale: 1; transition-delay: 0ms; }
.pathway-card[data-reveal] {
  transition: border-color 200ms, background 200ms, opacity 520ms ease var(--entrance-delay), translate 620ms cubic-bezier(.2,.7,.2,1) var(--entrance-delay);
}
.pathway-detail:not([hidden]) { animation: detail-enter 220ms ease both; }
@keyframes detail-enter {
  from { opacity: 0; translate: 0 4px; }
  to { opacity: 1; translate: none; }
}

.information-label { flex: 1; }
.information-label strong { font-weight: 500; }
.information-icon {
  display: grid;
  place-items: center;
  flex: 0 0 36px;
  height: 36px;
  border-radius: 50%;
  color: #c4e8a4;
  background: rgb(178 222 141 / 10%);
}
.checkout-details summary:hover { border-color: #b2d28e; background: #25391c; }
.checkout-details[open] summary { margin-bottom: 20px; }
.checkout-details summary:focus-visible { outline: 2px solid var(--lime); outline-offset: 4px; }

/* Warmer, concentrated light for plans; cooler, diffuse light for the process. */
.payment-backdrop { opacity: .34; }
.payment-overlay {
  background: radial-gradient(ellipse at 12% 35%, rgb(108 108 32 / 13%), transparent 64%), linear-gradient(90deg, transparent, rgb(3 7 3 / 65%));
}
.process-backdrop { opacity: .13; }
.process-backdrop img { transform: scaleX(-1); filter: saturate(.6); }
.process-shade {
  background: radial-gradient(ellipse at 77% 48%, rgb(34 85 68 / 24%), transparent 65%);
}

@media (max-width: 1023px) {
  .hero-shade {
    background: linear-gradient(180deg, rgb(3 7 3 / 8%), transparent 65%, transparent 80%, var(--black)), radial-gradient(ellipse at 5% 20%, rgb(3 7 3 / 88%), rgb(3 7 3 / 48%) 45%, transparent 82%);
  }
  .evidence-card { text-align: center; align-items: center; padding-inline: 8px; }
}
@media (min-width: 601px) and (max-width: 1023px) {
  .science-visual {
    top: 6px;
    height: 210px;
    mask-image: linear-gradient(180deg, #000 45%, transparent);
  }
}
@media (max-width: 600px) {
  .hero { background: radial-gradient(ellipse at 80% 57%, #17210d 0%, #0c1408 32%, var(--black) 72%); }
  .checkout-details summary { gap: 10px; padding: 12px; }
  .checkout-details summary small { font-size: 10px; line-height: 1.5; }
  .information-icon { flex-basis: 32px; height: 32px; }
  .evidence-card { padding-inline: 4px; }
  .footer-contact { grid-template-columns: 1fr 1fr; gap: 12px 18px; }
  .footer-contact a { font-size: 12px; gap: 8px; }
  .process-steps > li.is-active .step-visual { animation: detail-enter 300ms ease both; }
}
@media (max-width: 374px) {
  .footer-contact { grid-template-columns: 1fr; }
}
@media (prefers-reduced-motion: reduce) {
  [data-reveal] { opacity: 1; translate: none; scale: 1; transition: none; }
  .hero-molecules, .science-peptide img,
  .pathway-detail:not([hidden]), .process-steps > li.is-active .step-visual { animation: none; }
}
.process-steps li:first-child .step-visual img { object-position: center 55%; }
@media (max-width: 600px) { .science-section { padding-block: 40px; } }