:root {
  color-scheme: light;
  --cream: #f6efe4;
  --cream-deep: #e7d7bf;
  --ink: #151313;
  --muted: #6d6256;
  --line: rgba(21, 19, 19, 0.16);
  --glass: rgba(255, 252, 246, 0.66);
  --accent: #3cae9f;
  --accent-soft: rgba(60, 174, 159, 0.18);
  --watch-size: clamp(250px, 32vw, 430px);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-width: 320px;
  font-family: Inter, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--ink);
  background:
    radial-gradient(circle at 18% 10%, rgba(255, 255, 255, 0.96) 0 13%, transparent 32%),
    radial-gradient(circle at 82% 18%, rgba(205, 219, 232, 0.36) 0 12%, transparent 36%),
    linear-gradient(135deg, #f7fafc 0%, #edf3f6 48%, #fbfcfb 100%);
  overflow-x: hidden;
}

body::before {
  position: fixed;
  inset: 0;
  z-index: -2;
  content: "";
  pointer-events: none;
  background-image:
    linear-gradient(rgba(21, 19, 19, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(21, 19, 19, 0.025) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: linear-gradient(to bottom, transparent, black 16%, black 82%, transparent);
}

body::after {
  position: fixed;
  inset: auto 0 0;
  z-index: -1;
  height: 36vh;
  content: "";
  pointer-events: none;
  background: linear-gradient(to top, rgba(170, 188, 202, 0.16), transparent);
}

.topbar {
  position: fixed;
  top: 28px;
  right: max(28px, calc((100vw - 1120px) / 2));
  left: max(28px, calc((100vw - 1120px) / 2));
  z-index: 20;
  display: flex;
  min-height: 24px;
  align-items: center;
  justify-content: space-between;
  padding: 0;
  border: 0;
  background: transparent;
  box-shadow: none;
  backdrop-filter: none;
}

.brand,
.nav a,
.cta {
  color: inherit;
  text-decoration: none;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  font-size: 0.86rem;
  font-weight: 800;
  opacity: 0.82;
}

.nav {
  display: flex;
  gap: 28px;
}

.nav-feature-list {
  display: inline-flex;
  align-items: center;
  gap: 28px;
}

.nav-feature-label {
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 700;
  line-height: 1;
}

.nav a {
  min-width: 0;
  padding: 0;
  border-radius: 0;
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 700;
  text-align: center;
  opacity: 0.82;
  transition:
    color 180ms ease,
    opacity 180ms ease;
}

.nav a:hover {
  background: transparent;
  color: var(--ink);
  opacity: 1;
}

.nav-utility {
  display: inline-flex;
  align-items: center;
  gap: 14px;
  margin-left: 2px;
}

.nav-utility-link {
  color: inherit;
  font-size: 0.86rem;
  font-weight: 800;
  line-height: 1;
  opacity: 0.82;
}

.nav-divider {
  display: block;
  width: 1px;
  height: 16px;
  background: var(--line);
}

.panel {
  position: relative;
  display: grid;
  min-height: 285vh;
  align-items: start;
  justify-items: center;
  padding: 68px max(24px, calc((100vw - 1120px) / 2)) 92vh;
}

.hero {
  min-height: 285vh;
}

.copy {
  position: fixed;
  top: 68px;
  left: 50%;
  z-index: 6;
  width: min(820px, 100%);
  padding: 20px 0;
  text-align: center;
}

.hero-copy {
  width: min(880px, 100%);
}

h1,
h2,
p {
  margin-top: 0;
}

h1 {
  max-width: min(13.8ch, 100%);
  margin-right: auto;
  margin-left: auto;
  margin-bottom: 20px;
  font-size: clamp(2.85rem, 4.55vw, 4.85rem);
  line-height: 0.94;
  letter-spacing: 0;
}

.hero-title-pair {
  white-space: nowrap;
}

.mobile-only-break {
  display: none;
}

.desktop-only-break {
  display: none;
}

.desktop-hero-title {
  display: block;
  white-space: nowrap;
}

.mobile-hero-title {
  display: none;
}

.desktop-spo2-title {
  display: block;
  white-space: nowrap;
}

.mobile-spo2-title {
  display: none;
}

.desktop-sleep-title {
  display: block;
  white-space: nowrap;
}

.mobile-sleep-title {
  display: none;
}

h2 {
  max-width: min(13.8ch, 100%);
  margin-right: auto;
  margin-left: auto;
  margin-bottom: 20px;
  font-size: clamp(2.1rem, 3.45vw, 3.65rem);
  line-height: 0.96;
  letter-spacing: 0;
}

.lead,
.copy > p {
  max-width: 64ch;
  margin-right: auto;
  margin-left: auto;
  color: var(--muted);
  font-size: clamp(0.98rem, 1.25vw, 1.08rem);
  line-height: 1.6;
}

.lead {
  max-width: 58ch;
}

.hero .lead {
  max-width: 46ch;
}

.hero-actions,
.copy ul {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px;
  margin: 28px 0 0;
  padding: 0;
  list-style: none;
}

.copy ul {
  display: none;
}

.hero-actions span,
.copy li,
.cta {
  display: inline-flex;
  min-height: 42px;
  align-items: center;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.36);
  color: #2c2822;
  font-size: 0.9rem;
  font-weight: 700;
  box-shadow: 0 10px 35px rgba(72, 49, 28, 0.08);
  backdrop-filter: blur(12px);
}

.hero-actions span,
.copy li {
  padding: 0 15px;
}

.copy li::before {
  width: 7px;
  height: 7px;
  margin-right: 10px;
  border-radius: 50%;
  content: "";
  background: var(--accent);
  box-shadow: 0 0 0 6px var(--accent-soft);
}

.cta {
  pointer-events: auto;
  margin-top: 26px;
  padding: 0 20px;
  background: #171411;
  color: #fff7ea;
}

.cta.back-to-top {
  display: inline-flex;
  min-height: 0;
  align-items: center;
  flex-direction: column;
  gap: 9px;
  margin-top: 26px;
  padding: 0;
  border: 0;
  border-radius: 0;
  background: transparent;
  box-shadow: none;
  backdrop-filter: none;
  color: rgba(21, 19, 19, 0.68);
  font-size: 0.58rem;
  font-weight: 800;
  letter-spacing: 0.14em;
  line-height: 1;
  text-align: center;
  text-transform: uppercase;
  animation: backToTopFloat 2.2s ease-in-out infinite;
}

.cta.back-to-top::after {
  display: block;
  width: 10px;
  height: 10px;
  border-top: 1.5px solid #8b9194;
  border-left: 1.5px solid #8b9194;
  content: "";
  transform: rotate(45deg);
}

@keyframes backToTopFloat {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-4px); }
}

.watch-stage {
  position: fixed;
  right: 50%;
  bottom: -18px;
  z-index: 10;
  width: var(--watch-size);
  height: min(62vh, calc(var(--watch-size) * 1.1));
  pointer-events: none;
  transform: translateX(50%);
}

.scroll-cue {
  display: none;
}

.watch-frame {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: end center;
  filter: drop-shadow(0 34px 46px rgba(20, 17, 14, 0.34));
}

.watch-callouts {
  position: absolute;
  inset: 0;
  z-index: 5;
  opacity: var(--detail-opacity, 0);
  pointer-events: none;
  transform: translateY(calc(var(--detail-y, 18) * 1px));
  transition:
    opacity 520ms ease,
    transform 620ms cubic-bezier(0.19, 1, 0.22, 1);
}

.watch-callouts.is-resetting {
  transition: none;
}

.mobile-callouts {
  display: none;
}

.callout {
  position: absolute;
  top: 45%;
  display: grid;
  width: 238px;
  grid-template-columns: 74px 1fr;
  align-items: center;
  gap: 14px;
  color: rgba(21, 19, 19, 0.82);
}

.callout-left {
  right: calc(100% - 62px);
  text-align: right;
}

.callout-right {
  left: calc(100% - 62px);
}

.callout-right {
  grid-template-columns: 74px 1fr;
}

.callout-left {
  grid-template-columns: 1fr 74px;
}

.callout-left .callout-line {
  order: 2;
}

.callout-line {
  display: block;
  height: 1px;
  background: linear-gradient(90deg, transparent, color-mix(in srgb, var(--accent) 72%, #151313));
  transform: scaleX(var(--detail-line, 0));
  transition: transform 620ms cubic-bezier(0.19, 1, 0.22, 1);
}

.callout-right .callout-line {
  background: linear-gradient(90deg, color-mix(in srgb, var(--accent) 72%, #151313), transparent);
  transform-origin: left center;
}

.callout-left .callout-line {
  transform-origin: right center;
}

.callout strong,
.callout small {
  display: block;
}

.callout strong {
  margin-bottom: 6px;
  color: var(--ink);
  font-size: 0.78rem;
  line-height: 1.1;
}

.callout small {
  color: var(--muted);
  font-size: 0.74rem;
  font-weight: 600;
  line-height: 1.35;
}

.watch-frame::after {
  position: absolute;
  right: 17%;
  bottom: 2%;
  left: 17%;
  height: 22px;
  border-radius: 999px;
  content: "";
  background: rgba(28, 22, 17, 0.26);
  filter: blur(18px);
  transform: translateY(18px);
}

#watchImage {
  position: relative;
  z-index: 2;
  display: block;
  width: 100%;
  max-height: 100%;
  object-fit: contain;
  object-position: center bottom;
  opacity: 1;
  transform: translateY(0) scale(1);
  transition:
    opacity 420ms ease,
    transform 560ms cubic-bezier(0.19, 1, 0.22, 1),
    filter 560ms ease;
}

#watchImage.is-changing {
  opacity: 0;
  filter: blur(8px);
  transform: translateY(24px) scale(0.97);
}

.style-face {
  display: none;
}

.app-stage {
  display: none;
}

.app-callout {
  display: none;
}

.aura {
  position: absolute;
  right: 3%;
  bottom: 0;
  left: 3%;
  height: 68%;
  border-radius: 48%;
  background:
    radial-gradient(circle at 50% 54%, rgba(185, 202, 216, 0.24), transparent 62%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.1), rgba(219, 229, 236, 0.18));
  filter: blur(8px);
  opacity: 0.95;
  transform: translateY(9%);
  transition: background 500ms ease;
}

.scroll-meter {
  position: fixed;
  right: auto;
  bottom: 18px;
  left: 50%;
  z-index: 30;
  width: min(210px, 54vw);
  height: 3px;
  overflow: hidden;
  border-radius: 999px;
  background: rgba(23, 20, 17, 0.17);
  transform: translateX(-50%);
}

.scroll-meter span {
  display: block;
  width: 0%;
  height: 100%;
  border-radius: inherit;
  background: #398b78;
  transition: width 120ms linear;
}

[data-tone="emerald"] {
  --accent: #398b78;
  --accent-soft: rgba(57, 139, 120, 0.18);
}

[data-tone="ruby"] {
  --accent: #d34848;
  --accent-soft: rgba(211, 72, 72, 0.16);
}

[data-tone="cyan"] {
  --accent: #39aeca;
  --accent-soft: rgba(57, 174, 202, 0.18);
}

[data-tone="blue"] {
  --accent: #4779bf;
  --accent-soft: rgba(71, 121, 191, 0.16);
}

[data-tone="mint"] {
  --accent: #36a98f;
  --accent-soft: rgba(54, 169, 143, 0.17);
}

[data-tone="amber"] {
  --accent: #bc8236;
  --accent-soft: rgba(188, 130, 54, 0.17);
}

[data-tone="violet"] {
  --accent: #7f6cc4;
  --accent-soft: rgba(127, 108, 196, 0.16);
}

[data-tone="coral"] {
  --accent: #d66c56;
  --accent-soft: rgba(214, 108, 86, 0.16);
}

[data-tone="teal"] {
  --accent: #2a9d8f;
  --accent-soft: rgba(42, 157, 143, 0.18);
}

body.tone-emerald {
  --accent: #398b78;
  --accent-soft: rgba(57, 139, 120, 0.18);
}

body.tone-ruby {
  --accent: #d34848;
  --accent-soft: rgba(211, 72, 72, 0.16);
}

body.tone-cyan {
  --accent: #39aeca;
  --accent-soft: rgba(57, 174, 202, 0.18);
}

body.tone-blue {
  --accent: #4779bf;
  --accent-soft: rgba(71, 121, 191, 0.16);
}

body.tone-mint {
  --accent: #36a98f;
  --accent-soft: rgba(54, 169, 143, 0.17);
}

body.tone-amber {
  --accent: #bc8236;
  --accent-soft: rgba(188, 130, 54, 0.17);
}

body.tone-violet {
  --accent: #7f6cc4;
  --accent-soft: rgba(127, 108, 196, 0.16);
}

body.tone-coral {
  --accent: #d66c56;
  --accent-soft: rgba(214, 108, 86, 0.16);
}

body.tone-teal {
  --accent: #2a9d8f;
  --accent-soft: rgba(42, 157, 143, 0.18);
}

@media (min-width: 900px) {
  .panel:not(.final) {
    min-height: 360vh;
  }

  html.detail-scroll-hold,
  body.detail-scroll-hold {
    overscroll-behavior: none;
  }

  .copy,
  .hero-copy {
    top: 50px;
  }

  body:not(.final-active) .watch-stage {
    bottom: -8px;
    width: calc(var(--watch-size) * 0.86);
    height: min(62vh, calc(var(--watch-size) * 0.946));
  }

  body.hero-active .scroll-cue {
    position: absolute;
    top: 16px;
    left: 50%;
    z-index: 7;
    display: flex;
    align-items: center;
    flex-direction: column;
    gap: 9px;
    color: rgba(21, 19, 19, 0.68);
    font-size: 0.58rem;
    font-weight: 800;
    letter-spacing: 0.14em;
    line-height: 1;
    text-align: center;
    text-transform: uppercase;
    transform: translateX(-50%);
    opacity: calc(1 - var(--detail-opacity, 0));
    pointer-events: none;
    transition: opacity 420ms ease;
    animation: scrollCueFloatDesktop 2.2s ease-in-out infinite;
  }

  body.hero-active .scroll-cue i {
    display: block;
    width: 10px;
    height: 10px;
    border-right: 1.5px solid #8b9194;
    border-bottom: 1.5px solid #8b9194;
    transform: rotate(45deg);
  }

  body.hero-active.scroll-cue-dismissed .scroll-cue {
    opacity: 0;
    animation-play-state: paused;
  }

  @keyframes scrollCueFloatDesktop {
    0%, 100% { transform: translate(-50%, 0); }
    50% { transform: translate(-50%, 5px); }
  }

  .app-stage {
    position: fixed;
    right: clamp(440px, 28vw, 680px);
    bottom: clamp(24px, 4vh, 48px);
    z-index: 11;
    display: block;
    width: clamp(160px, 14vw, 210px);
    pointer-events: none;
    opacity: 0;
    transition: opacity 420ms ease;
  }

  .app-stage img {
    display: block;
    width: 100%;
    height: auto;
    filter: drop-shadow(0 24px 32px rgba(20, 17, 14, 0.2));
    opacity: 0;
    transform: translateY(24px) scale(0.97);
    transition:
      opacity 420ms ease,
      transform 560ms cubic-bezier(0.19, 1, 0.22, 1),
      filter 560ms ease;
  }

  body.app-active .app-stage {
    opacity: 1;
  }

  body.app-active .app-stage img:not(.is-changing) {
    opacity: 1;
    transform: translateY(0) scale(1);
  }

  .app-stage img.is-changing {
    opacity: 0;
    filter: blur(8px);
    transform: translateY(24px) scale(0.97);
  }

  .app-callout {
    position: absolute;
    right: auto;
    bottom: 40%;
    left: calc(100% + 22px);
    z-index: 2;
    display: flex;
    width: 210px;
    align-items: center;
    gap: 12px;
    color: rgba(21, 19, 19, 0.82);
    text-align: left;
    opacity: var(--detail-opacity, 0);
    transform: translateY(calc(var(--detail-y, 18) * 1px));
    transition:
      opacity 520ms ease,
      transform 620ms cubic-bezier(0.19, 1, 0.22, 1);
  }

  body.spo2-active .app-callout {
    bottom: 35%;
  }

  .app-callout.is-resetting {
    transition: none;
  }

  .app-callout-line {
    display: block;
    width: 58px;
    height: 1px;
    flex: 0 0 auto;
    background: linear-gradient(90deg, var(--accent), transparent);
    transform: scaleX(var(--detail-line, 0));
    transform-origin: left center;
    transition: transform 620ms cubic-bezier(0.19, 1, 0.22, 1);
  }

  .app-callout-copy {
    display: grid;
    gap: 5px;
  }

  .app-callout strong,
  .app-callout small {
    display: block;
  }

  .app-callout strong {
    color: var(--ink);
    font-size: 0.78rem;
    line-height: 1.1;
  }

  .app-callout small {
    color: var(--muted);
    font-size: 0.72rem;
    font-weight: 600;
    line-height: 1.3;
  }

  body.app-watch-shifted .watch-stage {
    right: calc(50% + clamp(80px, 9.2vw, 130px));
    bottom: -2px;
  }

  body.app-watch-shifted .callout-right {
    display: none;
  }

  .final {
    min-height: 285vh;
  }

  body.final-active .live-copy {
    animation: none;
  }

  body.final-active #watchImage {
    left: 26px;
    top: -8px;
    opacity: var(--final-watch-opacity, 0);
    filter: blur(var(--final-watch-blur, 8px));
    transform: translateY(calc(var(--final-watch-y, 24) * 1px)) scale(var(--final-watch-scale, 0.97));
    animation: none;
  }

  body.final-active #watchImage,
  body.final-active .style-face {
    width: 86%;
    max-width: none;
    max-height: 100%;
  }

  body.final-active.final-watch-entering #watchImage {
    transition: none !important;
  }

  .style-face {
    position: absolute;
    bottom: 2%;
    left: calc(100% - 68px);
    z-index: 3;
    display: block;
    width: min(92%, 390px);
    max-height: 94%;
    object-fit: contain;
    object-position: center bottom;
    opacity: var(--final-face-opacity, 0);
    filter: drop-shadow(0 32px 46px rgba(20, 17, 14, 0.24));
    transform: translateY(calc(var(--final-face-y, 24) * 1px)) scale(var(--final-face-scale, 0.97));
    transition:
      opacity 520ms ease,
      transform 620ms cubic-bezier(0.19, 1, 0.22, 1);
  }

  body.final-active .watch-stage {
    transform: translateX(12%);
  }

  body.final-active .watch-callouts {
    animation: none;
  }

  body.final-active .callout-line {
    transform: scaleX(var(--detail-line, 0));
  }

  body.final-active .style-face {
    animation: none;
  }

  body.final-active .callout {
    top: 59%;
  }

  body.final-active .callout-left {
    right: calc(100% - 92px);
  }

  body.final-active .callout-right {
    left: calc(100% + 210px);
    transform: translateX(34px);
  }
}

@keyframes finalCopyIn {
  from {
    opacity: 0.08;
    filter: blur(8px);
    transform: translate3d(-50%, 24px, 0);
  }

  to {
    opacity: 1;
    filter: blur(0);
    transform: translate3d(-50%, 0, 0);
  }
}

@keyframes finalCalloutsIn {
  from {
    opacity: 0;
    transform: translateY(18px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes finalProductIn {
  from {
    opacity: 0;
    filter: blur(8px);
    transform: translateY(24px) scale(0.97);
  }

  to {
    opacity: 1;
    filter: blur(0);
    transform: translateY(0) scale(1);
  }
}

.copy {
  --copy-opacity: 0;
  --copy-y: 28px;
  --copy-blur: 3.2px;
  opacity: var(--copy-opacity);
  filter: blur(var(--copy-blur));
  pointer-events: none;
  transform: translate3d(-50%, var(--copy-y), 0);
  transition:
    opacity 820ms cubic-bezier(0.22, 1, 0.36, 1),
    filter 820ms cubic-bezier(0.22, 1, 0.36, 1),
    transform 900ms cubic-bezier(0.19, 1, 0.22, 1);
  will-change: opacity, filter, transform;
}

.panel .copy {
  opacity: 0 !important;
  visibility: hidden;
  transition: none;
}

.live-copy {
  opacity: var(--copy-opacity);
  visibility: visible;
  transition:
    opacity 820ms cubic-bezier(0.22, 1, 0.36, 1),
    filter 820ms cubic-bezier(0.22, 1, 0.36, 1),
    transform 900ms cubic-bezier(0.19, 1, 0.22, 1);
}

.live-copy.is-resetting {
  transition: none;
}

.final {
  min-height: 82vh;
}

@media (min-width: 900px) {
  .desktop-only-break {
    display: block;
  }

  .final {
    min-height: 285vh;
  }
}

@media (max-width: 899px) {
  .desktop-hero-title {
    display: none;
  }

  .mobile-hero-title {
    display: block;
  }

  .desktop-spo2-title {
    display: none;
  }

  .mobile-spo2-title {
    display: block;
  }

  .desktop-sleep-title {
    display: none;
  }

  .mobile-sleep-title {
    display: block;
  }

  .mobile-only-break {
    display: block;
  }

  html.detail-scroll-hold,
  body.detail-scroll-hold {
    overflow: hidden;
    overscroll-behavior: none;
  }

  :root {
    --watch-size: clamp(305px, 86vw, 444px);
  }

  .topbar {
    top: 10px;
    right: 18px;
    left: 18px;
    min-height: 32px;
  }

  .nav {
    display: flex;
    gap: 0;
  }

  .nav-feature-list {
    display: none;
  }

  .panel {
    min-height: 400vh;
    align-items: start;
    padding: 70px 22px 45vh;
  }

  .hero {
    min-height: 400vh;
  }

  .copy,
  .hero-copy {
    top: 70px;
    width: min(100%, 520px);
  }

  .hero-copy {
    width: min(100%, 1100px);
  }

  .hero-copy h1 {
    max-width: 1050px;
  }

  h1 {
    max-width: 12ch;
    font-size: clamp(2.7rem, 11.2vw, 4.6rem);
  }

  h2 {
    max-width: 12ch;
    font-size: clamp(2.15rem, 9vw, 3.75rem);
  }

  .lead,
  .copy > p {
    font-size: 1rem;
    line-height: 1.58;
  }

  .lead {
    width: calc(100% - 24px);
    max-width: 27ch;
  }

  .watch-stage {
    bottom: 8px;
    height: 43vh;
  }

  .scroll-meter {
    position: fixed;
    right: auto;
    bottom: 18px;
    left: 50%;
    transform: translateX(-50%);
  }

  body.hero-active .scroll-cue {
    position: absolute;
    top: -26px;
    left: 50%;
    z-index: 7;
    display: flex;
    align-items: center;
    flex-direction: column;
    gap: 9px;
    color: rgba(21, 19, 19, 0.68);
    font-size: 0.58rem;
    font-weight: 800;
    letter-spacing: 0.14em;
    line-height: 1;
    text-align: center;
    text-transform: uppercase;
    transform: translateX(-50%);
    opacity: calc(1 - var(--detail-opacity, 0));
    pointer-events: none;
    transition: opacity 420ms ease;
    animation: scrollCueFloat 2.2s ease-in-out infinite;
  }

  body.hero-active .scroll-cue i {
    display: block;
    width: 10px;
    height: 10px;
    border-right: 1.5px solid #8b9194;
    border-bottom: 1.5px solid #8b9194;
    transform: rotate(45deg);
  }

  body.hero-active.scroll-cue-dismissed .scroll-cue {
    opacity: 0;
    animation-play-state: paused;
  }

  @keyframes scrollCueFloat {
    0%, 100% { transform: translate(-50%, 0); }
    50% { transform: translate(-50%, 5px); }
  }

  .aura {
    display: none;
  }

  body.app-watch-shifted .watch-stage {
    right: calc(50% + 84px);
  }

  .app-stage {
    position: fixed;
    right: clamp(22px, 7vw, 32px);
    bottom: clamp(33px, 5.4vh, 49px);
    z-index: 11;
    display: block;
    width: clamp(132px, 42vw, 166px);
    pointer-events: none;
    opacity: 0;
  }

  .app-stage img {
    display: block;
    width: 100%;
    height: auto;
    filter: drop-shadow(0 18px 26px rgba(20, 17, 14, 0.2));
    opacity: 0;
    transform: translateY(24px) scale(0.97);
    transition:
      opacity 420ms ease,
      transform 560ms cubic-bezier(0.19, 1, 0.22, 1),
      filter 560ms ease;
  }

  body.app-active .app-stage img:not(.is-changing) {
    opacity: 1;
    filter: drop-shadow(0 18px 26px rgba(20, 17, 14, 0.2));
    transform: translateY(0) scale(1);
  }

  .app-stage img.is-changing {
    opacity: 0;
    filter: blur(8px);
    transform: translateY(24px) scale(0.97);
  }

  body.app-active .app-stage {
    opacity: 1;
  }

  /* The final scene uses the same two-watch composition as desktop. */
  body.final-active .app-stage {
    display: none;
  }

  body.final-active .watch-stage {
    transform: translateX(50%);
  }

  body.final-active .watch-frame {
    inset: 0;
    width: auto;
  }

  body.final-active #watchImage {
    left: -90px;
  }

  body.final-active .style-face {
    position: absolute;
    bottom: 2%;
    left: 32%;
    z-index: 3;
    display: block;
    width: 92%;
    max-height: 100%;
    object-fit: contain;
    object-position: center bottom;
    opacity: var(--final-face-opacity, 0);
    filter: drop-shadow(0 22px 30px rgba(20, 17, 14, 0.24));
    transform: translateY(calc(var(--final-face-y, 24) * 1px)) scale(var(--final-face-scale, 0.97));
    transition:
      opacity 520ms ease,
      transform 620ms cubic-bezier(0.19, 1, 0.22, 1);
  }

  body.final-active .mobile-callouts {
    transform: translate3d(-50%, 0, 0);
    transition: opacity 520ms ease;
  }

  body.final-active .mobile-callout-kicker {
    display: none;
  }

  body.final-active .mobile-callout small {
    display: flex;
    min-height: 2.4em;
    align-items: flex-start;
  }

  .mobile-callouts.final-locked {
    position: fixed;
    top: clamp(318px, 43vh, 390px);
    transform: translate3d(-50%, 0, 0) !important;
  }

  .watch-callouts {
    display: none;
  }

  .mobile-callouts {
    position: fixed;
    top: clamp(318px, 43vh, 390px);
    left: 50%;
    --mobile-line-accent: #39aeca;
    z-index: 9;
    display: grid;
    width: min(82vw, 390px);
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    gap: 24px;
    opacity: var(--detail-opacity, 0);
    pointer-events: none;
    transform: translate3d(-50%, calc(var(--detail-y, 18) * 1px), 0);
    transition:
      opacity 520ms ease,
      transform 620ms cubic-bezier(0.19, 1, 0.22, 1);
  }

  .mobile-callouts.is-resetting {
    transition: none;
  }

  .mobile-callouts::after {
    position: absolute;
    top: calc(100% + 12px);
    left: 50%;
    width: 1px;
    height: clamp(92px, 16vh, 148px);
    content: "";
    background: linear-gradient(to bottom, color-mix(in srgb, var(--mobile-line-accent) 58%, transparent), transparent);
    opacity: var(--detail-line, 0);
    transform: translateX(-50%) scaleY(var(--detail-line, 0));
    transform-origin: top center;
    transition:
      opacity 520ms ease,
      transform 620ms cubic-bezier(0.19, 1, 0.22, 1);
  }

  .mobile-callout {
    display: grid;
    min-width: 0;
    align-content: start;
    justify-items: center;
    color: rgba(21, 19, 19, 0.82);
    text-align: center;
  }

  .mobile-callout strong,
  .mobile-callout small {
    display: block;
  }

  .mobile-callout-kicker {
    display: block;
    margin-bottom: 5px;
    color: #398b78;
    font-size: 0.52rem;
    font-weight: 800;
    letter-spacing: 0.16em;
    line-height: 1;
    text-transform: uppercase;
  }

  .mobile-callout strong {
    margin-bottom: 4px;
    color: var(--ink);
    font-size: 0.68rem;
    line-height: 1.08;
  }

  .mobile-callout small {
    color: var(--muted);
    font-size: 0.63rem;
    font-weight: 650;
    line-height: 1.22;
  }

  .mobile-callout-line {
    display: block;
    width: 118px;
    height: 1px;
    margin-top: 10px;
    transform: scaleX(var(--detail-line, 0));
    transition: transform 620ms cubic-bezier(0.19, 1, 0.22, 1);
  }

  .mobile-callout-left .mobile-callout-line {
    background: linear-gradient(90deg, transparent, color-mix(in srgb, var(--mobile-line-accent) 72%, #151313));
    transform-origin: right center;
  }

  .mobile-callout-right .mobile-callout-line {
    background: linear-gradient(90deg, color-mix(in srgb, var(--mobile-line-accent) 72%, #151313), transparent);
    transform-origin: left center;
  }

  .hero-actions,
  .copy ul {
    gap: 8px;
  }

  .hero-actions span,
  .copy li {
    min-height: 38px;
    padding: 0 12px;
    font-size: 0.82rem;
  }
}

@media (max-width: 430px) {
  .panel {
    padding-right: 18px;
    padding-left: 18px;
  }

  .brand {
    font-size: 0.96rem;
  }

  h1,
  h2 {
    max-width: 10.5ch;
  }

  h1 {
    max-width: 14ch;
  }

  .watch-stage {
    height: 44vh;
  }

  .mobile-callouts {
    top: clamp(330px, 45vh, 400px);
    width: min(84vw, 350px);
    gap: 18px;
  }

  .mobile-callout strong {
    font-size: 0.66rem;
  }

  .mobile-callout small {
    font-size: 0.61rem;
    line-height: 1.2;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: 1ms !important;
    animation-duration: 1ms !important;
  }
}