:root {
  --canvas: #f6f3eb;
  --surface: #fffefa;
  --ink: #17211c;
  --muted: #5d6861;
  --brand: #0d3b2e;
  --brand-strong: #082a21;
  --action: #126149;
  --accent: #b08b58;
  --line: #dce1db;
  --container: 1280px;
  --radius-sm: 12px;
  --radius-md: 20px;
  --radius-lg: 36px;
  --shadow-soft: 0 26px 72px rgba(8, 42, 33, 0.11);
  --shadow-float: 0 34px 90px rgba(5, 28, 21, 0.2);
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 104px;
}

body {
  margin: 0;
  overflow-x: hidden;
  background: var(--canvas);
  color: var(--ink);
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Display", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  font-size: 18px;
  line-height: 1.75;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

body.nav-open {
  overflow: hidden;
}

button,
a {
  -webkit-tap-highlight-color: transparent;
}

button {
  font: inherit;
}

a {
  color: inherit;
  text-decoration: none;
}

img {
  display: block;
  max-width: 100%;
}

h1,
h2,
h3,
p,
figure,
dl,
dd {
  margin: 0;
}

ul,
ol {
  margin: 0;
  padding: 0;
  list-style: none;
}

.container {
  width: min(calc(100% - 64px), var(--container));
  margin-inline: auto;
}

.section {
  padding-block: 152px;
}

.skip-link {
  position: fixed;
  top: 12px;
  left: 12px;
  z-index: 200;
  padding: 10px 16px;
  border-radius: var(--radius-sm);
  background: var(--brand-strong);
  color: white;
  transform: translateY(-160%);
  transition: transform 180ms ease;
}

.skip-link:focus {
  transform: translateY(0);
}

:focus-visible {
  outline: 3px solid rgba(18, 97, 73, 0.34);
  outline-offset: 4px;
}

.scroll-progress {
  position: fixed;
  z-index: 180;
  inset: 0 0 auto;
  height: 2px;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: left center;
  will-change: transform;
}

/* Shared depth material */
[data-depth] {
  --depth-surface-x: 0px;
  --depth-surface-y: 0px;
  --depth-text-x: 0px;
  --depth-text-y: 0px;
  --depth-image-x: 0px;
  --depth-image-y: 0px;
  --depth-tilt-x: 0deg;
  --depth-tilt-y: 0deg;
  --bubble-scale: 1;
  --bubble-presence: 0;
  --bubble-shadow-y: 0px;
  --bubble-shadow-blur: 0px;
  --bubble-sheen-opacity: 0;
}

[data-section-cinema] {
  --section-shift: 0px;
  --section-enter: 0;
}

.js [data-cinematic-image] {
  opacity: 0;
  filter: blur(14px) saturate(0.88);
  transition: opacity 900ms var(--ease-out), filter 1200ms var(--ease-out);
}

.js [data-cinematic-image].is-loaded {
  opacity: 1;
  filter: blur(0) saturate(1);
}

/* Header */
.site-header {
  position: fixed;
  inset: 0 0 auto;
  z-index: 100;
  padding: 20px 32px 0;
  transition: padding 320ms var(--ease-out);
}

.header-shell {
  width: min(100%, var(--container));
  min-height: 68px;
  margin-inline: auto;
  padding: 8px 10px 8px 4px;
  display: flex;
  align-items: center;
  gap: 30px;
  border: 1px solid transparent;
  border-radius: var(--radius-md);
  transition: background-color 320ms ease, border-color 320ms ease, box-shadow 320ms ease, padding 320ms var(--ease-out);
}

.site-header.is-scrolled {
  padding-top: 10px;
}

.site-header.is-scrolled .header-shell {
  padding-left: 12px;
  border-color: rgba(23, 33, 28, 0.08);
  background: rgba(255, 254, 250, 0.91);
  box-shadow: 0 12px 38px rgba(8, 42, 33, 0.08);
  backdrop-filter: blur(18px) saturate(125%);
  -webkit-backdrop-filter: blur(18px) saturate(125%);
}

.brand {
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  flex: 0 0 auto;
  gap: 11px;
  transform: perspective(800px) translate3d(var(--depth-surface-x, 0px), var(--depth-surface-y, 0px), 0) scale(var(--bubble-scale, 1));
  transform-origin: left center;
  will-change: transform;
}

.brand__mark {
  width: 44px;
  height: 44px;
  object-fit: contain;
  transform: translate3d(var(--depth-image-x, 0px), var(--depth-image-y, 0px), 0);
}

.brand__words {
  display: grid;
  line-height: 1.1;
  transform: translate3d(var(--depth-text-x, 0px), var(--depth-text-y, 0px), 0);
}

.brand__words strong {
  color: var(--brand-strong);
  font-size: 18px;
  font-weight: 750;
  letter-spacing: 0.08em;
}

.brand__words small {
  margin-top: 5px;
  color: var(--muted);
  font-size: 12px;
  letter-spacing: 0.08em;
}

.site-nav {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: 32px;
}

.site-nav a {
  position: relative;
  min-height: 44px;
  padding-block: 8px;
  display: inline-flex;
  align-items: center;
  color: rgba(23, 33, 28, 0.74);
  font-size: 15px;
  font-weight: 620;
  white-space: nowrap;
  transform: translate3d(var(--depth-surface-x, 0px), var(--depth-surface-y, 0px), 0) scale(var(--bubble-scale, 1));
  transition: color 200ms ease;
  will-change: transform;
}

.site-nav a::after {
  content: "";
  position: absolute;
  right: 0;
  bottom: 2px;
  left: 0;
  height: 1px;
  background: var(--action);
  transform: scaleX(0);
  transform-origin: right;
  transition: transform 300ms var(--ease-out);
}

.site-nav a:hover {
  color: var(--brand);
}

.site-nav a:hover::after {
  transform: scaleX(1);
  transform-origin: left;
}

.nav-toggle {
  display: none;
  width: 48px;
  height: 48px;
  border: 0;
  border-radius: var(--radius-sm);
  background: transparent;
  cursor: pointer;
}

.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  margin: 5px auto;
  border-radius: 2px;
  background: var(--brand-strong);
  transition: transform 260ms var(--ease-out);
}

.button {
  --button-lift: 0px;
  min-height: 56px;
  padding: 0 25px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 18px;
  border: 0;
  border-radius: var(--radius-sm);
  font-weight: 700;
  cursor: pointer;
  transform: perspective(900px) translate3d(var(--depth-surface-x, 0px), calc(var(--depth-surface-y, 0px) + var(--button-lift)), 0) scale(var(--bubble-scale, 1));
  transition: color 240ms ease, background-color 240ms ease, box-shadow 300ms ease;
  will-change: transform;
}

.button:hover {
  --button-lift: -2px;
}

.button--header {
  min-height: 48px;
  padding-inline: 20px;
  background: var(--action);
  color: white;
  font-size: 14px;
  white-space: nowrap;
}

.button--header:hover,
.button--primary:hover {
  background: var(--brand-strong);
  box-shadow: 0 14px 30px rgba(8, 42, 33, 0.16);
}

.button--primary {
  min-height: 62px;
  padding-inline: 28px;
  background: var(--action);
  color: white;
  font-size: 17px;
}

/* Shared type */
.eyebrow,
.section-kicker {
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--action);
  font-size: 14px;
  font-weight: 720;
  letter-spacing: 0.14em;
}

.eyebrow span {
  width: 30px;
  height: 1px;
  background: currentColor;
}

.section-heading h2,
.scenes h2,
.experience h2,
.open-class h2 {
  font-size: clamp(46px, 4.7vw, 66px);
  font-weight: 700;
  letter-spacing: -0.035em;
  line-height: 1.18;
  text-wrap: balance;
}

/* Hero */
.hero {
  position: relative;
  min-height: 940px;
  padding: 126px 0 0;
  overflow: hidden;
  isolation: isolate;
}

.hero__wash {
  position: absolute;
  z-index: -1;
  inset: 0;
  background:
    linear-gradient(112deg, rgba(18, 97, 73, 0.08), transparent 38%),
    linear-gradient(135deg, var(--surface), var(--canvas) 58%);
  transform: translate3d(0, var(--section-shift, 0px), 0) scale(1.04);
  transform-origin: center top;
  will-change: transform;
}

.hero__layout {
  min-height: 705px;
  display: grid;
  grid-template-columns: minmax(0, 5fr) minmax(560px, 7fr);
  align-items: center;
  gap: clamp(56px, 7vw, 104px);
}

.hero__copy {
  padding-block: 12px 76px;
}

.hero__copy h1,
.hero__copy .hero__lead,
.hero__copy .hero__actions,
.hero__copy .assurance {
  transform: translate3d(var(--depth-text-x, 0px), calc(var(--depth-text-y, 0px) + var(--scroll-text-shift, 0px)), 0);
  will-change: transform;
}

.hero__copy .eyebrow,
.hero__copy .learning-path {
  transform: translate3d(var(--depth-image-x, 0px), calc(var(--depth-image-y, 0px) + var(--scroll-text-shift, 0px)), 0);
  will-change: transform;
}

.hero h1 {
  margin-top: 24px;
  font-size: clamp(66px, 6.5vw, 98px);
  font-weight: 730;
  letter-spacing: -0.04em;
  line-height: 1.05;
  text-wrap: balance;
}

.hero h1 em {
  color: var(--action);
  font-style: normal;
}

.hero__lead {
  max-width: 560px;
  margin-top: 31px;
  color: var(--muted);
  font-size: 20px;
  line-height: 1.85;
}

.hero__actions {
  margin-top: 40px;
  display: flex;
  align-items: center;
  gap: 30px;
}

.text-link {
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--brand);
  font-size: 16px;
  font-weight: 700;
}

.text-link span {
  transition: transform 240ms var(--ease-out);
}

.text-link:hover span {
  transform: translateY(4px);
}

.assurance {
  margin-top: 17px;
  color: var(--muted);
  font-size: 14px;
}

.assurance span {
  margin-right: 6px;
  color: var(--action);
}

.learning-path {
  max-width: 540px;
  margin-top: 52px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border-top: 1px solid var(--line);
}

.learning-path div {
  padding-top: 16px;
}

.learning-path dt {
  color: var(--accent);
  font-family: Georgia, serif;
  font-size: 14px;
  font-style: italic;
}

.learning-path dd {
  margin-top: 2px;
  color: rgba(23, 33, 28, 0.78);
  font-size: 14px;
  font-weight: 650;
}

.hero__visual {
  position: relative;
  height: 680px;
  overflow: hidden;
  border-radius: var(--radius-lg);
  background: var(--line);
  box-shadow: 0 calc(26px + var(--bubble-shadow-y, 0px)) calc(72px + var(--bubble-shadow-blur, 0px)) rgba(8, 42, 33, 0.12);
  will-change: box-shadow;
}

.hero__visual > img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: 57% center;
  transform: scale(1.035) scale(var(--bubble-scale, 1)) translate3d(var(--depth-image-x, 0px), calc(var(--depth-image-y, 0px) + var(--scroll-media-shift, 0px)), 0);
  will-change: transform;
}

.hero__visual::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: linear-gradient(90deg, rgba(8, 42, 33, 0.06), transparent 34%);
}

.hero__visual figcaption {
  position: absolute;
  z-index: 1;
  right: 18px;
  bottom: 14px;
  color: rgba(255, 255, 255, 0.8);
  font-size: 12px;
  letter-spacing: 0.06em;
  text-shadow: 0 1px 8px rgba(8, 42, 33, 0.42);
}

.hero__footnote {
  min-height: 72px;
  display: flex;
  align-items: center;
  gap: 22px;
  border-top: 1px solid var(--line);
  color: rgba(23, 33, 28, 0.46);
  font-size: 12px;
  letter-spacing: 0.1em;
}

.hero__footnote i {
  width: 48px;
  height: 1px;
  background: var(--accent);
}

/* Concerns */
.concerns {
  background: var(--canvas);
}

.concerns__layout {
  display: grid;
  grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
  align-items: start;
  gap: clamp(72px, 10vw, 144px);
}

.section-heading {
  position: sticky;
  top: 130px;
}

.section-heading h2 {
  margin-top: 23px;
}

.section-heading > p:last-child {
  max-width: 480px;
  margin-top: 30px;
  color: var(--muted);
  font-size: 17px;
  line-height: 1.9;
}

.section-heading h2,
.scenes__heading h2,
.experience__heading h2,
.concerns__bridge p,
.scenes__coda p {
  transform: translate3d(var(--depth-text-x, 0px), calc(var(--depth-text-y, 0px) + var(--scroll-text-shift, 0px)), 0);
  will-change: transform;
}

.section-heading > p:last-child,
.scenes__heading > p:last-child,
.experience__intro,
.concerns__bridge > span,
.scenes__coda > span {
  transform: translate3d(var(--depth-image-x, 0px), calc(var(--depth-image-y, 0px) + var(--scroll-text-shift, 0px)), 0);
  will-change: transform;
}

.concern-grid {
  border-top: 1px solid var(--line);
}

.concern-grid article {
  position: relative;
  min-height: 160px;
  padding: 34px 0;
  display: grid;
  grid-template-columns: 46px minmax(180px, 0.9fr) minmax(200px, 1.1fr);
  align-items: start;
  gap: 24px;
  border-bottom: 1px solid var(--line);
  overflow: hidden;
  border-radius: 18px;
  transform: perspective(1000px) translate3d(var(--depth-surface-x, 0px), var(--depth-surface-y, 0px), 0) rotateX(var(--depth-tilt-x, 0deg)) rotateY(var(--depth-tilt-y, 0deg)) scale(var(--bubble-scale, 1));
  transform-origin: center;
  box-shadow: 0 var(--bubble-shadow-y, 0px) var(--bubble-shadow-blur, 0px) rgba(8, 42, 33, 0.08);
  will-change: transform, box-shadow;
}

.concern-grid article:hover {
  background: rgba(246, 243, 235, 0.34);
}

.concern-grid article > span {
  color: var(--accent);
  font-family: Georgia, serif;
  font-size: 14px;
  font-style: italic;
}

.concern-grid h3 {
  position: relative;
  z-index: 1;
  color: var(--brand-strong);
  font-size: 21px;
  font-weight: 680;
  line-height: 1.5;
  transform: translate3d(var(--depth-text-x, 0px), var(--depth-text-y, 0px), 0);
  will-change: transform;
}

.concern-grid p {
  position: relative;
  z-index: 1;
  color: var(--muted);
  font-size: 16px;
  line-height: 1.85;
  transform: translate3d(var(--depth-image-x, 0px), var(--depth-image-y, 0px), 0);
  will-change: transform;
}

.concerns__bridge {
  margin-top: 94px;
  padding-top: 30px;
  display: grid;
  grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
  gap: clamp(72px, 10vw, 144px);
  border-top: 1px solid var(--line);
}

.concerns__bridge span {
  color: var(--action);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.12em;
}

.concerns__bridge p {
  max-width: 720px;
  color: var(--brand);
  font-family: "Songti SC", "STSong", serif;
  font-size: clamp(24px, 2.3vw, 32px);
  line-height: 1.6;
}

/* Learning scenes */
.scenes {
  background: var(--canvas);
}

.scenes__heading {
  display: grid;
  grid-template-columns: minmax(190px, 0.62fr) minmax(420px, 1.18fr) minmax(280px, 0.78fr);
  align-items: end;
  gap: clamp(44px, 7vw, 96px);
}

.scenes__heading h2 {
  color: var(--brand-strong);
}

.scenes__heading > p:last-child {
  padding-bottom: 6px;
  color: var(--muted);
  font-size: 17px;
  line-height: 1.9;
}

.scene-gallery {
  margin-top: 104px;
  display: grid;
  grid-template-columns: minmax(0, 1.16fr) minmax(0, 0.84fr);
  align-items: start;
  gap: 72px 44px;
}

.scene-card {
  min-width: 0;
}

.scene-card--practice {
  margin-top: 124px;
}

.scene-card--feedback {
  grid-column: 1 / 3;
  width: 66%;
  justify-self: end;
}

.scene-card__media {
  position: relative;
  overflow: hidden;
  border-radius: 28px;
  background: var(--line);
  box-shadow: 0 calc(22px + var(--bubble-shadow-y, 0px)) calc(60px + var(--bubble-shadow-blur, 0px)) rgba(8, 42, 33, 0.1);
  transform: perspective(1200px) translate3d(var(--depth-surface-x, 0px), var(--depth-surface-y, 0px), 0) rotateX(var(--depth-tilt-x, 0deg)) rotateY(var(--depth-tilt-y, 0deg)) scale(var(--bubble-scale, 1));
  transform-origin: center;
  will-change: transform, box-shadow;
}

.scene-card__media::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: linear-gradient(120deg, rgba(255, 255, 255, 0.16), transparent 34%, rgba(255, 255, 255, 0.04) 70%);
  opacity: var(--bubble-sheen-opacity, 0);
  transition: opacity 260ms ease;
}

.scene-card__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transform: scale(1.045) translate3d(var(--depth-image-x, 0px), calc(var(--depth-image-y, 0px) + var(--scroll-media-shift, 0px)), 0);
  will-change: transform, opacity, filter;
}

.scene-card--class .scene-card__media {
  aspect-ratio: 1.3;
}

.scene-card--practice .scene-card__media {
  aspect-ratio: 1.08;
}

.scene-card--feedback .scene-card__media {
  aspect-ratio: 1.66;
}

.scene-card figcaption {
  position: relative;
  margin-top: 22px;
  padding-right: 82px;
  display: grid;
  transform: translate3d(var(--depth-text-x, 0px), calc(var(--depth-text-y, 0px) + var(--scroll-text-shift, 0px)), 0);
  will-change: transform;
}

.scene-card figcaption span {
  color: var(--action);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.08em;
}

.scene-card figcaption strong {
  margin-top: 5px;
  color: var(--brand-strong);
  font-size: 22px;
  font-weight: 650;
}

.scene-card figcaption small {
  position: absolute;
  right: 0;
  bottom: 2px;
  color: rgba(23, 33, 28, 0.42);
  font-size: 12px;
}

.scenes__coda {
  margin-top: 104px;
  padding-top: 31px;
  display: grid;
  grid-template-columns: minmax(0, 0.78fr) minmax(0, 1.22fr);
  gap: 80px;
  border-top: 1px solid var(--line);
}

.scenes__coda span {
  color: var(--action);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.1em;
}

.scenes__coda p {
  max-width: 760px;
  color: var(--brand);
  font-family: "Songti SC", "STSong", serif;
  font-size: clamp(25px, 2.4vw, 34px);
  line-height: 1.6;
}

/* Product experience */
.experience {
  position: relative;
  width: min(calc(100% - 32px), 1560px);
  margin: 0 auto 24px;
  padding: 144px 0 0;
  overflow: visible;
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: 48px;
  background:
    linear-gradient(118deg, rgba(255, 255, 255, 0.055), transparent 28%),
    linear-gradient(145deg, #18513f 0%, #0d3b2e 48%, #082e24 100%);
  box-shadow: 0 -42px 110px rgba(13, 59, 46, 0.08), 0 34px 90px rgba(8, 42, 33, 0.08);
  color: white;
}

.experience__threshold {
  position: absolute;
  z-index: -1;
  top: -180px;
  right: 4%;
  left: 4%;
  height: 230px;
  pointer-events: none;
  background: linear-gradient(180deg, transparent, rgba(13, 59, 46, 0.13) 72%, rgba(13, 59, 46, 0.22));
  filter: blur(22px);
  opacity: var(--section-enter, 0);
  transform: translate3d(0, var(--section-shift, 0px), 0);
}

.experience__heading {
  padding-bottom: 72px;
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(340px, 0.85fr);
  align-items: end;
  gap: 96px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.14);
}

.section-kicker--light {
  color: rgba(210, 226, 216, 0.72);
}

.experience h2 {
  margin-top: 22px;
  color: var(--surface);
}

.experience__intro {
  padding-bottom: 6px;
  color: rgba(255, 255, 255, 0.65);
  font-size: 17px;
  line-height: 1.9;
}

.experience__scroll {
  position: relative;
  height: 340vh;
  min-height: 2500px;
}

.experience__sticky {
  position: sticky;
  top: 0;
  height: 100vh;
  min-height: 720px;
  display: grid;
  grid-template-columns: minmax(0, 0.88fr) minmax(440px, 1.12fr);
  align-items: center;
  gap: clamp(72px, 10vw, 144px);
}

.feature-list {
  border-top: 1px solid rgba(255, 255, 255, 0.14);
}

.feature-list li {
  --step-active-x: 0px;
  position: relative;
  min-height: 150px;
  padding: 30px 8px 30px 0;
  display: grid;
  grid-template-columns: 54px 1fr;
  align-content: center;
  gap: 16px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.14);
  opacity: 0.78;
  transform: perspective(1000px) translate3d(calc(var(--step-active-x) + var(--depth-surface-x, 0px)), var(--depth-surface-y, 0px), 0) rotateX(var(--depth-tilt-x, 0deg)) rotateY(var(--depth-tilt-y, 0deg)) scale(var(--bubble-scale, 1));
  box-shadow: 0 var(--bubble-shadow-y, 0px) var(--bubble-shadow-blur, 0px) rgba(2, 18, 13, 0.16);
  transition: opacity 420ms ease;
  will-change: transform, box-shadow;
}

.feature-list__trigger {
  position: absolute;
  z-index: 3;
  inset: 7px 0;
  border: 0;
  border-radius: 18px;
  background: transparent;
  cursor: pointer;
  transition: background-color 220ms ease, box-shadow 220ms ease;
  -webkit-tap-highlight-color: transparent;
}

.feature-list__trigger:hover {
  background: rgba(255, 255, 255, 0.035);
}

.feature-list__trigger:focus-visible {
  outline: 2px solid rgba(220, 198, 167, 0.88);
  outline-offset: -4px;
  box-shadow: 0 0 0 5px rgba(220, 198, 167, 0.1);
}

.feature-list li::before {
  content: "";
  position: absolute;
  top: -1px;
  left: 0;
  width: 0;
  height: 1px;
  background: var(--accent);
  transition: width 700ms var(--ease-out);
}

.feature-list li.is-active {
  --step-active-x: 8px;
  opacity: 1;
}

.feature-list li.is-active::before {
  width: 72px;
}

.feature-list li > span {
  padding-top: 5px;
  color: var(--accent);
  font-family: Georgia, serif;
  font-size: 14px;
  font-style: italic;
}

.feature-list strong {
  color: var(--surface);
  font-size: clamp(22px, 2vw, 28px);
  font-weight: 650;
  letter-spacing: -0.02em;
  transform: translate3d(var(--depth-text-x, 0px), var(--depth-text-y, 0px), 0);
  will-change: transform;
}

.feature-list p {
  max-width: 510px;
  margin-top: 9px;
  color: rgba(255, 255, 255, 0.66);
  font-size: 17px;
  line-height: 1.85;
  transform: translate3d(var(--depth-image-x, 0px), var(--depth-image-y, 0px), 0);
  will-change: transform;
}

.feature-list__mobile-screen {
  display: none;
}

.product-stage {
  position: relative;
  height: min(78vh, 760px);
  min-height: 660px;
  display: grid;
  place-items: center;
}

.product-stage::before {
  content: "";
  position: absolute;
  inset: 38px 7% 30px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-lg);
  background:
    linear-gradient(145deg, rgba(255, 255, 255, 0.075), transparent 46%),
    rgba(255, 255, 255, 0.025);
  transform: translate3d(var(--depth-text-x, 0px), var(--depth-text-y, 0px), 0) scale(var(--bubble-scale, 1));
}

.product-device {
  --device-cinema-scale: 1;
  position: relative;
  z-index: 1;
  width: 326px;
  aspect-ratio: 831 / 1800;
  overflow: hidden;
  border: 8px solid #071c16;
  border-radius: 42px;
  background: var(--canvas);
  box-shadow: 0 calc(34px + var(--bubble-shadow-y, 0px)) calc(90px + var(--bubble-shadow-blur, 0px)) rgba(5, 28, 21, 0.24);
  transform: perspective(1200px) translate3d(var(--depth-surface-x, 0px), var(--depth-surface-y, 0px), 0) rotateX(var(--depth-tilt-x, 0deg)) rotateY(var(--depth-tilt-y, 0deg)) scale(var(--bubble-scale, 1)) scale(var(--device-cinema-scale));
  transform-origin: center;
  will-change: transform, box-shadow;
}

.product-screen {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0;
  transform: scale(1.02);
  will-change: opacity, transform, filter;
}

.product-screen.is-active {
  z-index: 1;
  opacity: 1;
  transform: scale(1);
}

.product-device__veil {
  position: absolute;
  z-index: 5;
  inset: 0;
  pointer-events: none;
  background: linear-gradient(112deg, transparent 18%, rgba(231, 239, 233, 0.22) 48%, transparent 78%);
  opacity: var(--product-veil, 0);
  transform: translate3d(var(--product-wipe, -120%), 0, 0);
  will-change: opacity, transform;
}

.product-stage__index {
  position: absolute;
  left: 8%;
  bottom: 58px;
  display: flex;
  align-items: center;
  gap: 11px;
  color: rgba(255, 255, 255, 0.48);
  font-family: Georgia, serif;
  font-size: 13px;
  font-style: italic;
  transform: translate3d(var(--depth-text-x, 0px), var(--depth-text-y, 0px), 0);
}

.product-stage__index > span:first-child {
  color: var(--accent);
  font-size: 18px;
}

.product-stage__index i {
  width: 44px;
  height: 1px;
  background: rgba(255, 255, 255, 0.24);
}

.product-stage__hint {
  position: absolute;
  left: 8%;
  bottom: 91px;
  color: rgba(255, 255, 255, 0.54);
  font-size: 12px;
  font-weight: 620;
  letter-spacing: 0.08em;
  transform: translate3d(var(--depth-image-x, 0px), var(--depth-image-y, 0px), 0);
}

.product-stage figcaption {
  position: absolute;
  right: 7%;
  bottom: 14px;
  color: rgba(255, 255, 255, 0.4);
  font-size: 12px;
  letter-spacing: 0.04em;
}

/* Open class */
.open-class {
  position: relative;
  overflow: hidden;
  background: var(--canvas);
}

.open-class::before {
  content: "";
  position: absolute;
  top: -120px;
  right: -8%;
  left: -8%;
  height: 210px;
  pointer-events: none;
  background: linear-gradient(180deg, rgba(246, 243, 235, 0), rgba(246, 243, 235, 0.92));
  transform: translate3d(0, var(--section-shift, 0px), 0);
}

.open-class__panel {
  min-height: 650px;
  padding-block: 94px;
  display: grid;
  grid-template-columns: minmax(0, 1fr) 410px;
  align-items: center;
  gap: clamp(72px, 11vw, 150px);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.open-class__copy h2,
.open-class__copy > p,
.open-class__copy .open-class__facts {
  transform: translate3d(var(--depth-text-x, 0px), calc(var(--depth-text-y, 0px) + var(--scroll-text-shift, 0px)), 0);
  will-change: transform;
}

.open-class h2 {
  margin-top: 23px;
  color: var(--brand-strong);
}

.open-class__copy > p:not(.section-kicker) {
  max-width: 610px;
  margin-top: 28px;
  color: var(--muted);
  font-size: 17px;
  line-height: 1.9;
}

.open-class__facts {
  margin: 34px 0 38px;
  display: flex;
  flex-wrap: wrap;
  gap: 12px 28px;
  color: rgba(23, 33, 28, 0.8);
  font-size: 15px;
  font-weight: 650;
}

.open-class__facts span {
  margin-right: 5px;
  color: var(--action);
}

.qr-card {
  position: relative;
  width: 100%;
  min-height: 514px;
  padding: 38px 42px 34px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  border-radius: var(--radius-lg);
  border: 1px solid rgba(255, 255, 255, 0.08);
  background:
    linear-gradient(116deg, rgba(255, 255, 255, 0.08), transparent 34%),
    linear-gradient(145deg, #1a5945 0%, #0f4435 54%, #0a3328 100%);
  box-shadow: 0 calc(26px + var(--bubble-shadow-y, 0px)) calc(72px + var(--bubble-shadow-blur, 0px)) rgba(8, 42, 33, 0.14);
  text-align: center;
  will-change: box-shadow;
}

.qr-card::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  border-radius: inherit;
  background: linear-gradient(122deg, rgba(255, 255, 255, 0.1), transparent 32%, rgba(176, 139, 88, 0.045) 74%);
  opacity: var(--bubble-sheen-opacity, 0);
  transition: opacity 260ms ease;
}

.qr-card > * {
  position: relative;
  z-index: 1;
}

.qr-card__top {
  padding-bottom: 14px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid rgba(255, 255, 255, 0.14);
  color: rgba(255, 255, 255, 0.62);
  font-size: 13px;
  transform: translate3d(var(--depth-text-x, 0px), var(--depth-text-y, 0px), 0);
  will-change: transform;
}

.qr-card__mini-mark {
  width: 40px;
  height: 40px;
  padding: 5px;
  display: grid;
  place-items: center;
  border-radius: var(--radius-sm);
  border: 1px solid rgba(176, 139, 88, 0.38);
  background: #fffaf0;
  box-shadow: 0 8px 22px rgba(3, 18, 13, 0.22);
  transform: translate3d(var(--depth-image-x, 0px), var(--depth-image-y, 0px), 0);
  will-change: transform;
}

.qr-card__mini-mark img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.qr-card__code {
  width: 240px;
  max-width: 100%;
  aspect-ratio: 1;
  margin: 28px auto 18px;
  padding: 12px;
  display: grid;
  place-items: center;
  border-radius: var(--radius-md);
  background: white;
  box-shadow: 0 calc(18px + var(--bubble-shadow-y, 0px)) calc(36px + var(--bubble-shadow-blur, 0px)) rgba(3, 22, 16, 0.2);
  transform: perspective(1000px) translate3d(var(--depth-surface-x, 0px), var(--depth-surface-y, 0px), 0) rotateX(var(--depth-tilt-x, 0deg)) rotateY(var(--depth-tilt-y, 0deg)) scale(var(--bubble-scale, 1));
  will-change: transform, box-shadow;
}

.qr-card__code img,
.qr-dialog__code img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.qr-card > strong {
  color: var(--surface);
  font-size: 20px;
  font-weight: 680;
  transform: translate3d(var(--depth-text-x, 0px), var(--depth-text-y, 0px), 0);
  will-change: transform;
}

.qr-card > p {
  margin-top: 4px;
  color: rgba(255, 255, 255, 0.7);
  font-size: 14px;
  transform: translate3d(var(--depth-image-x, 0px), var(--depth-image-y, 0px), 0);
  will-change: transform;
}

.qr-card__download {
  min-height: 44px;
  align-self: center;
  margin-top: 14px;
  display: inline-flex;
  align-items: center;
  border-bottom: 1px solid rgba(176, 139, 88, 0.7);
  color: #dcc6a7;
  font-size: 13px;
  font-weight: 650;
  transform: translate3d(var(--depth-text-x, 0px), var(--depth-text-y, 0px), 0);
  will-change: transform;
}

.consultation-steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border-bottom: 1px solid var(--line);
}

.consultation-steps li {
  min-height: 126px;
  padding: 30px 34px;
  display: flex;
  align-items: center;
  gap: 18px;
  border-right: 1px solid var(--line);
  border-radius: 18px;
  transform: perspective(900px) translate3d(var(--depth-surface-x, 0px), var(--depth-surface-y, 0px), 0) rotateX(var(--depth-tilt-x, 0deg)) rotateY(var(--depth-tilt-y, 0deg)) scale(var(--bubble-scale, 1));
  box-shadow: 0 var(--bubble-shadow-y, 0px) var(--bubble-shadow-blur, 0px) rgba(8, 42, 33, 0.08);
  will-change: transform, box-shadow;
}

.consultation-steps li:hover {
  background: rgba(255, 254, 250, 0.6);
}

.consultation-steps li:first-child {
  padding-left: 0;
}

.consultation-steps li:last-child {
  border-right: 0;
}

.consultation-steps li > span {
  color: var(--accent);
  font-family: Georgia, serif;
  font-size: 18px;
  font-style: italic;
  transform: translate3d(var(--depth-image-x, 0px), var(--depth-image-y, 0px), 0);
}

.consultation-steps strong {
  display: block;
  color: var(--brand-strong);
  font-size: 16px;
  transform: translate3d(var(--depth-text-x, 0px), var(--depth-text-y, 0px), 0);
}

.consultation-steps p {
  margin-top: 2px;
  color: var(--muted);
  font-size: 14px;
  transform: translate3d(var(--depth-image-x, 0px), var(--depth-image-y, 0px), 0);
}

/* Footer */
.site-footer {
  padding: 90px 0 30px;
  background: var(--brand-strong);
  color: white;
}

.footer__top {
  padding-bottom: 68px;
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 72px;
}

.brand--footer .brand__words strong {
  color: white;
}

.brand--footer .brand__mark {
  padding: 6px;
  border: 1px solid rgba(176, 139, 88, 0.42);
  border-radius: var(--radius-sm);
  background: #fffaf0;
  box-shadow: 0 10px 28px rgba(3, 18, 13, 0.28);
}

.brand--footer .brand__words small {
  color: rgba(255, 255, 255, 0.5);
}

.footer__brand > p {
  max-width: 500px;
  margin-top: 24px;
  color: rgba(255, 255, 255, 0.58);
  font-size: 15px;
  transform: translate3d(var(--depth-text-x, 0px), var(--depth-text-y, 0px), 0);
  will-change: transform;
}

.footer__contact {
  display: grid;
  justify-items: end;
}

.footer__contact > * {
  transform: translate3d(var(--depth-text-x, 0px), var(--depth-text-y, 0px), 0);
  will-change: transform;
}

.footer__contact span {
  margin-bottom: 8px;
  color: rgba(255, 255, 255, 0.48);
  font-size: 13px;
}

.footer__contact a:first-of-type {
  font-size: clamp(28px, 3vw, 38px);
  font-weight: 620;
  letter-spacing: -0.02em;
}

.footer__contact a:last-of-type {
  margin-top: 5px;
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  color: rgba(255, 255, 255, 0.64);
  font-size: 14px;
}

.footer__bottom {
  padding-top: 24px;
  display: flex;
  justify-content: space-between;
  gap: 24px;
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  color: rgba(255, 255, 255, 0.52);
  font-size: 13px;
}

.footer__bottom a:hover {
  color: rgba(255, 255, 255, 0.72);
}

.footer__bottom a {
  min-height: 44px;
  display: inline-flex;
  align-items: center;
}

.mobile-consult {
  display: none;
}

/* Consultation dialog */
.qr-dialog {
  width: min(calc(100% - 40px), 820px);
  max-height: calc(100dvh - 32px);
  padding: 0;
  overflow: auto;
  overscroll-behavior: contain;
  border: 0;
  border-radius: var(--radius-lg);
  background: var(--surface);
  color: var(--ink);
  box-shadow: var(--shadow-float);
}

.qr-dialog::backdrop {
  background: rgba(4, 24, 17, 0.64);
  backdrop-filter: blur(8px);
}

.qr-dialog[open] {
  animation: dialog-in 380ms var(--ease-out) both;
}

.qr-dialog__inner {
  position: relative;
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  overflow: hidden;
  border-radius: inherit;
}

.qr-dialog__close {
  position: absolute;
  z-index: 3;
  top: 16px;
  right: 16px;
  width: 44px;
  height: 44px;
  border: 0;
  border-radius: 50%;
  background: rgba(246, 243, 235, 0.94);
  color: var(--brand-strong);
  font-size: 27px;
  line-height: 1;
  cursor: pointer;
}

.qr-dialog__brand {
  min-height: 540px;
  padding: 46px 42px;
  background:
    linear-gradient(120deg, rgba(255, 255, 255, 0.07), transparent 36%),
    linear-gradient(150deg, #1a5945 0%, #0f4435 56%, #0a3328 100%);
  color: white;
  text-align: left;
}

.qr-dialog__lockup {
  display: flex;
  align-items: center;
  gap: 12px;
  transform: translate3d(var(--depth-image-x, 0px), var(--depth-image-y, 0px), 0);
  will-change: transform;
}

.qr-dialog__lockup > span {
  width: 48px;
  height: 48px;
  padding: 6px;
  display: grid;
  place-items: center;
  border-radius: var(--radius-sm);
  border: 1px solid rgba(176, 139, 88, 0.42);
  background: #fffaf0;
  box-shadow: 0 10px 26px rgba(3, 18, 13, 0.24);
}

.qr-dialog__lockup img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.qr-dialog__lockup div {
  display: grid;
  line-height: 1.15;
}

.qr-dialog__lockup strong {
  font-size: 17px;
  letter-spacing: 0.08em;
}

.qr-dialog__lockup small {
  margin-top: 4px;
  color: rgba(255, 255, 255, 0.54);
  font-size: 12px;
}

.qr-dialog__brand > p {
  margin-top: 78px;
  color: rgba(255, 255, 255, 0.62);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.12em;
  transform: translate3d(var(--depth-text-x, 0px), var(--depth-text-y, 0px), 0);
}

.qr-dialog__brand h2 {
  margin-top: 13px;
  color: white;
  font-size: 38px;
  font-weight: 680;
  letter-spacing: -0.03em;
  line-height: 1.3;
  transform: translate3d(var(--depth-image-x, 0px), var(--depth-image-y, 0px), 0);
}

.qr-dialog__rule {
  width: 42px;
  height: 1px;
  margin-top: 32px;
  background: var(--accent);
}

.qr-dialog__brand ul {
  margin-top: 24px;
  display: grid;
  gap: 8px;
  color: rgba(255, 255, 255, 0.6);
  font-size: 13px;
  transform: translate3d(var(--depth-text-x, 0px), var(--depth-text-y, 0px), 0);
}

.qr-dialog__brand li::before {
  content: "—";
  margin-right: 8px;
  color: var(--accent);
}

.qr-dialog__code-panel {
  min-height: 540px;
  padding: 48px 44px 36px;
  display: flex;
  align-items: center;
  flex-direction: column;
  justify-content: center;
  background: var(--surface);
  text-align: center;
}

.qr-dialog__code-panel .section-kicker {
  justify-content: center;
  transform: translate3d(var(--depth-text-x, 0px), var(--depth-text-y, 0px), 0);
}

.qr-dialog__code {
  width: min(256px, 72vw);
  aspect-ratio: 1;
  margin: 22px auto 15px;
  padding: 13px;
  display: grid;
  place-items: center;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: white;
  box-shadow: 0 calc(16px + var(--bubble-shadow-y, 0px)) calc(40px + var(--bubble-shadow-blur, 0px)) rgba(8, 42, 33, 0.1);
  transform: perspective(900px) translate3d(var(--depth-surface-x, 0px), var(--depth-surface-y, 0px), 0) rotateX(var(--depth-tilt-x, 0deg)) rotateY(var(--depth-tilt-y, 0deg)) scale(var(--bubble-scale, 1));
  will-change: transform, box-shadow;
}

.qr-dialog__code-panel > strong {
  color: var(--brand-strong);
  font-size: 20px;
  transform: translate3d(var(--depth-text-x, 0px), var(--depth-text-y, 0px), 0);
}

.qr-dialog__hint {
  max-width: 340px;
  margin-top: 4px;
  color: var(--muted);
  font-size: 13px;
  transform: translate3d(var(--depth-image-x, 0px), var(--depth-image-y, 0px), 0);
}

.qr-dialog__save {
  margin-top: 15px;
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  color: var(--action);
  font-size: 14px;
  font-weight: 700;
  text-decoration: underline;
  text-underline-offset: 4px;
  transform: translate3d(var(--depth-text-x, 0px), var(--depth-text-y, 0px), 0);
}

.qr-dialog__code-panel > small {
  margin-top: 5px;
  color: rgba(23, 33, 28, 0.5);
  font-size: 12px;
  transform: translate3d(var(--depth-image-x, 0px), var(--depth-image-y, 0px), 0);
}

@keyframes dialog-in {
  from {
    opacity: 0;
    transform: translateY(18px) scale(0.98);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

/* Scroll-directed cinematic reveal */
.js [data-reveal] {
  opacity: var(--cinema-opacity, 0);
  filter: blur(var(--cinema-blur, 10px));
  clip-path: inset(0 0 var(--cinema-clip, 8%) 0);
  transform: translate3d(0, var(--cinema-y, 54px), 0) scale(var(--cinema-scale, 0.975));
  transform-origin: center bottom;
  will-change: opacity, filter, clip-path, transform;
}

@media (max-width: 1280px) {
  .hero {
    padding-top: 108px;
  }
}

@media (max-width: 1120px) {
  .site-nav {
    gap: 20px;
  }

  .button--header {
    display: none;
  }

  .hero {
    padding-top: 96px;
  }

  .hero__layout {
    grid-template-columns: minmax(0, 0.9fr) minmax(500px, 1.1fr);
    gap: 50px;
  }

  .hero__visual {
    height: 620px;
  }

  .concerns__layout,
  .concerns__bridge {
    gap: 72px;
  }

  .concern-grid article {
    grid-template-columns: 40px minmax(160px, 0.9fr) minmax(180px, 1.1fr);
    gap: 18px;
  }

  .scenes__heading {
    grid-template-columns: minmax(180px, 0.68fr) minmax(0, 1.32fr);
    align-items: start;
  }

  .scenes__heading > p:last-child {
    grid-column: 2;
  }

  .experience__sticky {
    gap: 72px;
  }

  .open-class__panel {
    grid-template-columns: minmax(0, 1fr) 380px;
    gap: 72px;
  }
}

@media (max-width: 980px) {
  .site-nav {
    position: fixed;
    inset: 88px 20px auto;
    padding: 16px;
    display: grid;
    gap: 0;
    border: 1px solid var(--line);
    border-radius: var(--radius-md);
    background: rgba(255, 254, 250, 0.98);
    box-shadow: var(--shadow-soft);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-12px);
    transition: opacity 240ms ease, transform 300ms var(--ease-out), visibility 240ms;
  }

  .site-nav.is-open {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
  }

  .site-nav a {
    padding: 15px 12px;
    border-bottom: 1px solid var(--line);
    font-size: 17px;
  }

  .site-nav a:last-child {
    border-bottom: 0;
  }

  .site-nav a::after {
    display: none;
  }

  .nav-toggle {
    margin-left: auto;
    display: block;
  }

  .nav-toggle[aria-expanded="true"] span:first-child {
    transform: translateY(3.5px) rotate(45deg);
  }

  .nav-toggle[aria-expanded="true"] span:last-child {
    transform: translateY(-3.5px) rotate(-45deg);
  }

  .hero {
    padding-top: 108px;
  }

  .hero__layout {
    grid-template-columns: 1fr;
    gap: 42px;
  }

  .hero__copy {
    max-width: 760px;
    padding-top: 12px;
    padding-bottom: 12px;
  }

  .hero__visual {
    width: calc(100% - 42px);
    height: 620px;
    margin-left: 42px;
  }

  .concerns__layout,
  .concerns__bridge {
    grid-template-columns: 1fr;
    gap: 54px;
  }

  .section-heading {
    position: static;
    max-width: 720px;
  }

  .concerns__bridge {
    gap: 16px;
  }

  .scenes__heading {
    grid-template-columns: minmax(180px, 0.68fr) minmax(0, 1.32fr);
    align-items: start;
  }

  .scenes__heading > p:last-child {
    grid-column: 2;
  }

  .scene-gallery {
    gap: 58px 30px;
  }

  .scene-card--practice {
    margin-top: 88px;
  }

  .experience__heading {
    grid-template-columns: 1fr;
    gap: 28px;
  }

  .experience__intro {
    max-width: 680px;
  }

  .experience__sticky {
    grid-template-columns: minmax(0, 0.9fr) minmax(360px, 1.1fr);
    gap: 48px;
  }

  .product-device {
    width: 292px;
  }

  .open-class__panel {
    grid-template-columns: 1fr 350px;
    gap: 52px;
  }

  .qr-card {
    padding-inline: 32px;
  }
}

@media (max-width: 760px) {
  html {
    scroll-padding-top: 88px;
  }

  body {
    padding-bottom: calc(72px + env(safe-area-inset-bottom));
    font-size: 18px;
  }

  .container {
    width: min(calc(100% - 32px), var(--container));
  }

  .section {
    padding-block: 100px;
  }

  .site-header {
    padding: 8px 10px 0;
  }

  .header-shell,
  .site-header.is-scrolled .header-shell {
    min-height: 64px;
    padding: 7px 8px 7px 10px;
    border-radius: 16px;
  }

  .brand__mark {
    width: 40px;
    height: 40px;
  }

  .brand__words strong {
    font-size: 16px;
  }

  .brand__words small {
    font-size: 11px;
  }

  .button--header {
    display: none;
  }

  .nav-toggle {
    width: 46px;
    height: 46px;
  }

  .site-nav {
    inset: 80px 10px auto;
  }

  .hero {
    min-height: auto;
    padding: 90px 0 0;
  }

  .hero__copy {
    padding-top: 10px;
  }

  .eyebrow,
  .section-kicker {
    font-size: 13px;
    letter-spacing: 0.1em;
  }

  .hero h1 {
    margin-top: 19px;
    font-size: clamp(52px, 15vw, 66px);
    letter-spacing: -0.035em;
  }

  .hero__lead {
    margin-top: 25px;
    font-size: 18px;
    line-height: 1.8;
  }

  .hero__actions {
    margin-top: 31px;
    align-items: stretch;
    flex-direction: column;
    gap: 17px;
  }

  .button--primary {
    width: 100%;
    min-height: 60px;
    padding-inline: 20px;
    font-size: 16px;
  }

  .text-link {
    align-self: flex-start;
  }

  .learning-path {
    margin-top: 42px;
    gap: 9px;
  }

  .learning-path dd {
    font-size: 13px;
  }

  .hero__visual {
    width: calc(100% - 16px);
    height: 480px;
    margin-left: 16px;
    border-radius: 28px;
  }

  .hero__visual > img {
    object-position: 63% center;
  }

  .hero__footnote {
    min-height: 64px;
    gap: 12px;
    font-size: 12px;
    letter-spacing: 0.06em;
  }

  .hero__footnote i {
    width: 22px;
  }

  .section-heading h2,
  .scenes h2,
  .experience h2,
  .open-class h2 {
    margin-top: 18px;
    font-size: clamp(40px, 11.5vw, 52px);
    line-height: 1.2;
  }

  .section-heading > p:last-child,
  .scenes__heading > p:last-child,
  .open-class__copy > p:not(.section-kicker),
  .experience__intro {
    margin-top: 23px;
    font-size: 16px;
  }

  .concerns__layout {
    gap: 52px;
  }

  .concern-grid article {
    min-height: auto;
    padding: 28px 0;
    grid-template-columns: 34px 1fr;
    gap: 8px 12px;
  }

  .concern-grid article:hover {
    transform: none;
  }

  .concern-grid h3 {
    font-size: 20px;
  }

  .concern-grid p {
    grid-column: 2;
    font-size: 16px;
  }

  .concerns__bridge {
    margin-top: 68px;
    padding-top: 24px;
  }

  .concerns__bridge p {
    font-size: 24px;
  }

  .scenes__heading {
    display: block;
  }

  .scenes__heading h2 {
    margin-top: 18px;
  }

  .scenes__heading > p:last-child {
    margin-top: 23px;
  }

  .scene-gallery {
    margin-top: 62px;
    display: block;
  }

  .scene-card,
  .scene-card--practice,
  .scene-card--feedback {
    width: 100%;
    margin: 0 0 58px;
  }

  .scene-card--class .scene-card__media,
  .scene-card--practice .scene-card__media,
  .scene-card--feedback .scene-card__media {
    aspect-ratio: 1.18;
    border-radius: 24px;
  }

  .scene-card figcaption {
    padding-right: 0;
  }

  .scene-card figcaption strong {
    font-size: 20px;
  }

  .scene-card figcaption small {
    position: static;
    margin-top: 6px;
  }

  .scenes__coda {
    margin-top: 18px;
    display: block;
  }

  .scenes__coda p {
    margin-top: 14px;
    font-size: 24px;
  }

  .experience {
    width: calc(100% - 16px);
    margin-bottom: 8px;
    padding-top: 96px;
    border-radius: 32px;
  }

  .experience__heading {
    padding-bottom: 56px;
  }

  .experience__scroll {
    height: auto;
    min-height: 0;
  }

  .experience__sticky {
    position: static;
    height: auto;
    min-height: 0;
    padding-block: 32px 86px;
    display: block;
  }

  .feature-list li,
  .feature-list li.is-active {
    min-height: auto;
    padding: 34px 0;
    grid-template-columns: 42px 1fr;
    opacity: 1;
    transform: none;
  }

  .feature-list li::before {
    display: none;
  }

  .feature-list__trigger {
    display: none;
  }

  .feature-list strong {
    font-size: 23px;
  }

  .feature-list p {
    margin-top: 8px;
    font-size: 16px;
  }

  .feature-list__mobile-screen {
    width: min(260px, 68vw);
    height: auto;
    margin: 28px auto 8px;
    display: block;
    border: 6px solid #071c16;
    border-radius: 34px;
    box-shadow: 0 24px 54px rgba(5, 28, 21, 0.28);
  }

  .product-stage {
    display: none;
  }

  .open-class__panel {
    min-height: auto;
    padding-block: 68px;
    display: block;
  }

  .open-class__facts {
    display: grid;
    gap: 8px;
  }

  .qr-card {
    min-height: 500px;
    margin-top: 56px;
    padding: 34px 24px 30px;
    border-radius: 28px;
  }

  .qr-card__code {
    width: min(236px, 70vw);
  }

  .consultation-steps {
    grid-template-columns: 1fr;
  }

  .consultation-steps li,
  .consultation-steps li:first-child {
    min-height: 94px;
    padding: 20px 2px;
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .consultation-steps li:last-child {
    border-bottom: 0;
  }

  .site-footer {
    padding-top: 70px;
  }

  .footer__top {
    padding-bottom: 50px;
    display: grid;
    gap: 44px;
  }

  .footer__contact {
    justify-items: start;
  }

  .footer__bottom {
    flex-direction: column;
    gap: 7px;
  }

  .mobile-consult {
    position: fixed;
    z-index: 90;
    right: 12px;
    bottom: calc(10px + env(safe-area-inset-bottom));
    left: 12px;
    min-height: 56px;
    display: block;
    border: 1px solid rgba(255, 255, 255, 0.16);
    border-radius: var(--radius-sm);
    background: rgba(13, 59, 46, 0.96);
    box-shadow: 0 16px 36px rgba(8, 42, 33, 0.24);
    color: white;
    font-size: 16px;
    font-weight: 720;
    backdrop-filter: blur(14px);
    opacity: 1;
    visibility: visible;
    transform: translate3d(0, 0, 0);
    transition:
      opacity 220ms ease,
      visibility 220ms ease,
      transform 320ms var(--ease-out);
  }

  .mobile-consult.is-suppressed {
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transform: translate3d(0, calc(100% + 22px), 0);
  }

  .qr-dialog {
    width: min(calc(100% - 24px), 470px);
    max-height: calc(100dvh - 20px);
    border-radius: 28px;
  }

  .qr-dialog__inner {
    display: block;
  }

  .qr-dialog__brand {
    display: none;
  }

  .qr-dialog__code-panel {
    min-height: auto;
    padding: 42px 24px 28px;
  }

  .qr-dialog__code {
    width: min(242px, 68vw);
    margin-top: 18px;
  }

  .qr-dialog__close {
    top: 12px;
    right: 12px;
  }
}

@media (max-width: 980px) and (max-height: 640px) and (orientation: landscape) and (pointer: coarse) {
  html {
    scroll-padding-top: 88px;
  }

  .section {
    padding-block: 72px;
  }

  .hero {
    min-height: auto;
    padding-top: 86px;
  }

  .experience {
    width: calc(100% - 16px);
    margin-bottom: 8px;
    padding-top: 72px;
    border-radius: 30px;
  }

  .experience__heading {
    padding-bottom: 44px;
  }

  .experience__scroll {
    height: auto;
    min-height: 0;
  }

  .experience__sticky {
    position: static;
    height: auto;
    min-height: 0;
    padding-block: 28px 64px;
    display: block;
  }

  .feature-list li,
  .feature-list li.is-active {
    min-height: auto;
    padding: 28px 0;
    grid-template-columns: 42px 1fr;
    opacity: 1;
    transform: none;
  }

  .feature-list li::before,
  .feature-list__trigger {
    display: none;
  }

  .feature-list li > div {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 168px;
    align-items: center;
    gap: 28px;
  }

  .feature-list li > span {
    align-self: center;
    padding-top: 0;
  }

  .feature-list__copy {
    grid-column: 1;
  }

  .feature-list__copy p {
    margin-top: 8px;
  }

  .feature-list__mobile-screen {
    width: 168px;
    height: auto;
    margin: 0;
    display: block;
    grid-column: 2;
    grid-row: 1;
    border: 5px solid #071c16;
    border-radius: 28px;
    box-shadow: 0 20px 44px rgba(5, 28, 21, 0.26);
  }

  .product-stage {
    display: none;
  }

  .open-class__panel {
    min-height: auto;
    padding-block: 48px;
    grid-template-columns: minmax(0, 1fr) 300px;
    gap: 40px;
  }

  .qr-card {
    min-height: 460px;
    padding: 28px 30px 24px;
  }

  .qr-card__code {
    width: 196px;
    margin-block: 20px 12px;
  }

  .qr-dialog {
    width: min(calc(100% - 24px), 560px);
    max-height: calc(100dvh - 12px);
    border-radius: 24px;
  }

  .qr-dialog__inner {
    display: block;
  }

  .qr-dialog__brand {
    display: none;
  }

  .qr-dialog__code-panel {
    min-height: 0;
    padding: 18px 70px 14px;
  }

  .qr-dialog__code-panel .section-kicker {
    font-size: 12px;
  }

  .qr-dialog__code {
    width: min(188px, 46dvh);
    margin: 6px auto 4px;
    padding: 9px;
    border-radius: 16px;
  }

  .qr-dialog__code-panel > strong {
    font-size: 18px;
  }

  .qr-dialog__hint {
    margin-top: 2px;
    font-size: 12px;
    line-height: 1.5;
  }

  .qr-dialog__save {
    margin-top: 2px;
  }

  .qr-dialog__code-panel > small {
    display: none;
  }

  .qr-dialog__close {
    top: 7px;
    right: 8px;
  }
}

@media (max-width: 390px) {
  .brand__words small {
    display: none;
  }

  .hero__visual {
    height: 430px;
  }

  .product-stage {
    height: 570px;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

  .js [data-reveal] {
    opacity: 1;
    filter: none;
    clip-path: none;
    transform: none;
  }

  .js [data-cinematic-image] {
    opacity: 1;
    filter: none;
  }
}