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

html {
  scroll-behavior: smooth;
}

:root {
  color-scheme: light dark;
  --bg: #f5f2e9;
  --bg-raised: #fffdf7;
  --bg-soft: #e8eee8;
  --ink: #111916;
  --muted: #54615b;
  --line: #cfd8d1;
  --teal: #087a6e;
  --teal-strong: #055e56;
  --teal-soft: #c7eee8;
  --magenta: #9600d8;
  --magenta-soft: #ead4f5;
  --dark: #07110e;
  --dark-raised: #0d1a16;
  --white: #f8fffc;
  --shadow: 0 30px 80px rgba(18, 34, 28, 0.14);
  --phone-shadow: 0 32px 70px rgba(0, 0, 0, 0.34);
  --radius: 28px;
  --max: 1180px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #07110e;
    --bg-raised: #0d1a16;
    --bg-soft: #11231d;
    --ink: #effaf6;
    --muted: #a6b9b1;
    --line: #294239;
    --teal: #82ddd3;
    --teal-strong: #b1f5ed;
    --teal-soft: #163d36;
    --magenta: #d17aff;
    --magenta-soft: #392344;
    --shadow: 0 30px 90px rgba(0, 0, 0, 0.28);
  }
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 16px;
  line-height: 1.6;
  overflow-x: hidden;
}

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

a {
  color: inherit;
  text-decoration-thickness: 1px;
  text-underline-offset: 0.22em;
}

a:hover {
  text-decoration-thickness: 2px;
}

a:focus-visible,
summary:focus-visible {
  outline: 3px solid var(--magenta);
  outline-offset: 4px;
}

.skip-link {
  position: fixed;
  top: 14px;
  inset-inline-start: 14px;
  z-index: 100;
  padding: 10px 16px;
  border-radius: 999px;
  background: var(--white);
  color: var(--dark);
  transform: translateY(-180%);
  transition: transform 160ms ease;
}

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

.site-header {
  width: min(calc(100% - 40px), var(--max));
  min-height: 84px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
}

.brand,
.footer-brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  color: var(--ink);
  font-weight: 800;
  letter-spacing: -0.03em;
  text-decoration: none;
}

.brand img,
.footer-brand img {
  width: 42px;
  height: 42px;
  object-fit: contain;
}

.site-header nav {
  display: flex;
  align-items: center;
  gap: 28px;
  font-size: 0.88rem;
  font-weight: 650;
}

.site-header nav a {
  text-decoration: none;
}

.site-header nav a:hover {
  color: var(--teal-strong);
}

.site-header .nav-cta {
  padding: 10px 17px;
  border: 1px solid var(--line);
  border-radius: 999px;
}

.hero {
  position: relative;
  width: min(calc(100% - 40px), var(--max));
  min-height: 760px;
  margin: 0 auto;
  padding: 80px 0 105px;
  display: grid;
  grid-template-columns: minmax(0, 1.06fr) minmax(390px, 0.94fr);
  align-items: center;
  gap: 76px;
}

.hero::before {
  content: "";
  position: absolute;
  inset-block: 4% 8%;
  inset-inline: -30vw 48%;
  z-index: -1;
  opacity: 0.5;
  background:
    linear-gradient(90deg, transparent 97%, var(--line) 97%),
    linear-gradient(var(--magenta-soft), transparent 64%);
  background-size: 92px 100%, 100% 100%;
  mask-image: linear-gradient(to right, transparent, black 30%, black 80%, transparent);
}

html[dir="rtl"] .hero::before {
  background:
    linear-gradient(270deg, transparent 97%, var(--line) 97%),
    linear-gradient(var(--magenta-soft), transparent 64%);
  mask-image: linear-gradient(to left, transparent, black 30%, black 80%, transparent);
}

.eyebrow,
.feature-label,
.tier-label,
.readout-label {
  margin: 0 0 16px;
  color: var(--teal-strong);
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 0.76rem;
  font-weight: 750;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.hero h1 {
  max-width: 760px;
  margin: 0;
  font-size: clamp(3.6rem, 7vw, 6.8rem);
  font-weight: 760;
  letter-spacing: -0.075em;
  line-height: 0.94;
}

.hero h1 em {
  color: var(--magenta);
  font-family: Georgia, "Times New Roman", serif;
  font-weight: 500;
  letter-spacing: -0.06em;
}

.hero-lede {
  max-width: 650px;
  margin: 34px 0 0;
  color: var(--muted);
  font-size: clamp(1.08rem, 1.8vw, 1.3rem);
}

.hero-actions {
  margin-top: 36px;
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 14px;
}

.button {
  display: inline-flex;
  min-height: 50px;
  align-items: center;
  justify-content: center;
  padding: 12px 21px;
  border-radius: 999px;
  font-size: 0.92rem;
  font-weight: 750;
  text-decoration: none;
  transition: transform 160ms ease, background 160ms ease;
}

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

.button-primary {
  background: var(--teal-strong);
  color: #fff;
}

@media (prefers-color-scheme: dark) {
  .button-primary {
    color: var(--dark);
  }
}

.button-quiet {
  border: 1px solid var(--line);
  background: var(--bg-raised);
}

.proof-list {
  margin: 34px 0 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 9px;
  list-style: none;
}

.proof-list li {
  padding: 7px 11px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--muted);
  font-size: 0.77rem;
  font-weight: 700;
}

.hero-visual {
  position: relative;
  min-height: 620px;
  display: grid;
  place-items: center;
}

.hero-halo {
  position: absolute;
  width: 510px;
  aspect-ratio: 1;
  border-radius: 50%;
  background:
    radial-gradient(circle at 35% 30%, rgba(204, 81, 255, 0.48), transparent 43%),
    radial-gradient(circle at 68% 68%, rgba(94, 232, 219, 0.55), transparent 48%),
    var(--dark-raised);
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.08);
}

html[dir="rtl"] .hero-halo {
  background:
    radial-gradient(circle at 65% 30%, rgba(204, 81, 255, 0.48), transparent 43%),
    radial-gradient(circle at 32% 68%, rgba(94, 232, 219, 0.55), transparent 48%),
    var(--dark-raised);
}

.phone {
  overflow: hidden;
  margin: 0;
  border: 7px solid #151b19;
  border-radius: 35px;
  background: #07100d;
  box-shadow: var(--phone-shadow);
}

.phone img,
.phone video {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* Autoplaying motion is decorative here, so a reduced-motion preference drops
   the video and leaves the still it was covering. */
@media (prefers-reduced-motion: reduce) {
  .phone:has(video) {
    background-image: url("screenshots/tuner-dark.png");
    background-size: cover;
  }

  .phone video {
    display: none;
  }
}

.phone-hero {
  position: relative;
  z-index: 2;
  width: 266px;
  aspect-ratio: 1260 / 2800;
  transform: rotate(2.5deg);
}

html[dir="rtl"] .phone-hero {
  transform: rotate(-2.5deg);
}

.readout {
  position: absolute;
  z-index: 3;
  width: 152px;
  padding: 14px 16px;
  display: grid;
  border: 1px solid rgba(255, 255, 255, 0.13);
  border-radius: 17px;
  background: rgba(12, 27, 22, 0.92);
  color: var(--white);
  box-shadow: 0 18px 40px rgba(0, 0, 0, 0.25);
  backdrop-filter: blur(12px);
}

.readout strong {
  font-size: 1.45rem;
  line-height: 1.15;
}

.readout span:last-child {
  color: #a8c0b7;
  font-size: 0.73rem;
}

.readout .readout-label {
  margin-bottom: 7px;
  color: #83e2d7;
  font-size: 0.62rem;
}

.readout-top {
  top: 82px;
  inset-inline-end: -7px;
}

.readout-bottom {
  bottom: 102px;
  inset-inline-start: -15px;
  grid-template-columns: auto 1fr;
  column-gap: 8px;
  align-items: center;
}

.readout-bottom span:last-child {
  grid-column: 2;
}

.status-dot {
  width: 9px;
  height: 9px;
  grid-row: 1 / 3;
  border-radius: 50%;
  background: #71e4ac;
  box-shadow: 0 0 16px #71e4ac;
}

.principles {
  padding: 94px max(20px, calc((100vw - var(--max)) / 2));
  background: var(--dark);
  color: var(--white);
}

.section-heading {
  max-width: 820px;
  margin: 0 auto 58px;
  text-align: center;
}

.section-heading-compact {
  margin-bottom: 44px;
}

.section-heading h2,
.commitment h2,
.download h2,
.press h2 {
  margin: 0;
  font-size: clamp(2.15rem, 4vw, 4rem);
  letter-spacing: -0.055em;
  line-height: 1.04;
}

.section-heading > p:last-child {
  max-width: 650px;
  margin: 22px auto 0;
  color: var(--muted);
  font-size: 1.05rem;
}

.principles .section-heading {
  margin-inline-start: 0;
  text-align: start;
}

.principles .eyebrow,
.commitment .eyebrow,
.download .eyebrow {
  color: #82ddd3;
}

.principle-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border-top: 1px solid #294039;
}

.principle-grid article {
  padding-block: 34px 5px;
  padding-inline: 0 36px;
  border-inline-end: 1px solid #294039;
}

.principle-grid article + article {
  padding-inline-start: 36px;
}

.principle-grid article:last-child {
  border-inline-end: 0;
}

.principle-label {
  color: #d476ff;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 0.78rem;
}

.principle-grid h3 {
  margin: 22px 0 10px;
  font-size: 1.25rem;
  letter-spacing: -0.025em;
}

.principle-grid p {
  margin: 0;
  color: #aabdb5;
  font-size: 0.92rem;
}

.features {
  width: min(calc(100% - 40px), var(--max));
  margin: 0 auto;
  padding: 120px 0;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 24px;
}

.feature-card {
  position: relative;
  min-height: 690px;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--bg-raised);
  box-shadow: var(--shadow);
}

.feature-card-wide {
  min-height: 650px;
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: 0.86fr 1.14fr;
  align-items: center;
}

.feature-card .feature-copy {
  position: relative;
  z-index: 3;
  padding: clamp(34px, 5vw, 68px);
}

.feature-card h3 {
  margin: 0;
  font-size: clamp(2rem, 3.5vw, 3.55rem);
  letter-spacing: -0.055em;
  line-height: 1.03;
}

.feature-card p:not(.feature-label) {
  max-width: 520px;
  margin: 22px 0 0;
  color: var(--muted);
}

.mini-list,
.check-list {
  margin: 28px 0 0;
  padding: 0;
  display: grid;
  gap: 10px;
  list-style: none;
}

.mini-list li,
.check-list li {
  position: relative;
  padding-inline-start: 24px;
  color: var(--muted);
  font-size: 0.9rem;
}

.mini-list li::before,
.check-list li::before {
  content: "";
  position: absolute;
  top: 0.58em;
  inset-inline-start: 0;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--teal);
  box-shadow: 0 0 0 4px var(--teal-soft);
}

.device-pair {
  position: relative;
  min-height: 650px;
  align-self: end;
}

.phone-feature {
  width: 255px;
  aspect-ratio: 1260 / 2800;
}

.device-pair .phone {
  position: absolute;
  bottom: -105px;
}

.phone-back {
  inset-inline-start: 42px;
  transform: rotate(-5deg);
  filter: saturate(0.88);
}

.phone-front {
  inset-inline-end: 55px;
  z-index: 2;
  transform: rotate(4deg);
}

html[dir="rtl"] .phone-back {
  transform: rotate(5deg);
}

html[dir="rtl"] .phone-front {
  transform: rotate(-4deg);
}

.feature-tune {
  background:
    radial-gradient(circle at 83% 20%, var(--magenta-soft), transparent 32%),
    radial-gradient(circle at 60% 100%, var(--teal-soft), transparent 43%),
    var(--bg-raised);
}

html[dir="rtl"] .feature-tune {
  background:
    radial-gradient(circle at 17% 20%, var(--magenta-soft), transparent 32%),
    radial-gradient(circle at 40% 100%, var(--teal-soft), transparent 43%),
    var(--bg-raised);
}

.feature-card-tall {
  display: flex;
  flex-direction: column;
}

.feature-card-tall .feature-copy {
  padding-bottom: 34px;
}

.feature-card-tall .phone {
  width: 54%;
  min-width: 245px;
  margin: 0 auto -150px;
}

.feature-walkthrough {
  background:
    linear-gradient(150deg, var(--bg-raised) 38%, var(--teal-soft));
}

.feature-tension {
  background:
    linear-gradient(205deg, var(--bg-raised) 42%, var(--magenta-soft));
}

html[dir="rtl"] .feature-walkthrough {
  background:
    linear-gradient(210deg, var(--bg-raised) 38%, var(--teal-soft));
}

html[dir="rtl"] .feature-tension {
  background:
    linear-gradient(155deg, var(--bg-raised) 42%, var(--magenta-soft));
}

.feature-history {
  min-height: 720px;
  grid-template-columns: 1.12fr 0.88fr;
  background:
    radial-gradient(circle at 15% 70%, var(--teal-soft), transparent 38%),
    var(--bg-raised);
}

html[dir="rtl"] .feature-history {
  background:
    radial-gradient(circle at 85% 70%, var(--teal-soft), transparent 38%),
    var(--bg-raised);
}

.history-phones {
  position: relative;
  min-height: 720px;
}

.history-phones .phone {
  position: absolute;
  bottom: -100px;
}

.history-phone-main {
  inset-inline-start: 52px;
  z-index: 2;
  transform: rotate(-3deg);
}

.history-phone-detail {
  inset-inline-end: 22px;
  transform: rotate(5deg);
}

html[dir="rtl"] .history-phone-main {
  transform: rotate(3deg);
}

html[dir="rtl"] .history-phone-detail {
  transform: rotate(-5deg);
}

.feature-note {
  padding: 16px 18px;
  border-inline-start: 3px solid var(--magenta);
  background: var(--magenta-soft);
  font-size: 0.9rem;
}

.tiers {
  padding: 110px max(20px, calc((100vw - var(--max)) / 2));
  background: var(--bg-soft);
}

.tier-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 22px;
}

.tier-card {
  position: relative;
  min-height: 480px;
  padding: clamp(36px, 5vw, 62px);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--bg-raised);
}

.tier-card h3 {
  max-width: 430px;
  margin: 0;
  font-size: clamp(2rem, 3vw, 3rem);
  letter-spacing: -0.05em;
  line-height: 1.06;
}

.tier-card .check-list {
  margin-top: 40px;
  gap: 18px;
}

.tier-card .check-list li {
  font-size: 0.98rem;
}

.tier-card-pro {
  border-color: transparent;
  background: var(--dark);
  color: var(--white);
  box-shadow: var(--shadow);
}

.tier-card-pro .tier-label {
  color: #d17aff;
}

.tier-card-pro .check-list li {
  color: #bfd0ca;
}

.tier-card-pro .check-list li::before {
  background: #82ddd3;
  box-shadow: 0 0 0 4px #143f36;
}

.one-time {
  position: absolute;
  top: 26px;
  inset-inline-end: 26px;
  padding: 7px 11px;
  border: 1px solid #3c514a;
  border-radius: 999px;
  color: #b8cbc4;
  font-size: 0.7rem;
  font-weight: 750;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.commitment {
  min-height: 650px;
  padding: 90px max(20px, calc((100vw - var(--max)) / 2));
  display: grid;
  grid-template-columns: 0.75fr 1.25fr;
  align-items: center;
  gap: 70px;
  overflow: hidden;
  background: #0a1612;
  color: var(--white);
}

.commitment-mark {
  position: relative;
  min-height: 390px;
  display: grid;
  place-items: center;
}

.commitment-mark::before {
  content: "";
  position: absolute;
  width: 400px;
  aspect-ratio: 1;
  border: 1px solid #2b443c;
  border-radius: 50%;
  box-shadow: 0 0 0 70px rgba(28, 58, 49, 0.3), 0 0 0 140px rgba(28, 58, 49, 0.15);
}

.commitment-mark img {
  position: relative;
  z-index: 1;
  width: 320px;
  height: 320px;
  object-fit: contain;
}

.commitment-copy {
  position: relative;
  z-index: 1;
}

.commitment-copy p:not(.eyebrow) {
  max-width: 720px;
  margin: 28px 0 0;
  color: #abc1b8;
  font-size: 1.02rem;
}

.commitment-copy strong {
  color: var(--white);
}

.download {
  width: min(calc(100% - 40px), var(--max));
  margin: 0 auto;
  padding: 110px 0;
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(320px, 0.8fr);
  align-items: center;
  gap: 70px;
}

.download-copy p:last-child {
  max-width: 580px;
  margin: 25px 0 0;
  color: var(--muted);
}

.store-badges {
  display: flex;
  align-items: flex-start;
  justify-content: flex-start;
  flex-wrap: wrap;
  gap: 14px;
}

.store-link {
  display: inline-flex;
  min-height: 52px;
  align-items: center;
  border-radius: 9px;
  line-height: 0;
  transition: transform 160ms ease;
}

a.store-link:hover {
  transform: translateY(-2px);
}

.store-link img {
  width: auto;
  height: 52px;
}

.press {
  width: min(calc(100% - 40px), var(--max));
  margin: 0 auto;
  padding: 110px 0 120px;
  border-top: 1px solid var(--line);
}

.press .section-heading {
  margin-bottom: 52px;
}

.press .eyebrow {
  color: var(--teal);
}

.press-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(280px, 0.9fr);
  gap: 48px 56px;
  margin-bottom: 72px;
}

.press-boilerplate,
.press-facts {
  padding: 32px 34px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--bg-raised);
}

.press-boilerplate h3,
.press-facts h3,
.press-assets-block h3,
.press-shots-block h3 {
  margin: 0 0 18px;
  font-size: 1.05rem;
  letter-spacing: -0.02em;
}

.press-boilerplate p {
  margin: 0;
  color: var(--muted);
  font-size: 0.98rem;
}

.press-boilerplate p + p {
  margin-top: 18px;
}

.press-facts dl {
  margin: 0;
  display: grid;
  gap: 16px;
}

.press-facts dl > div {
  display: grid;
  gap: 4px;
  padding-top: 14px;
  border-top: 1px solid var(--line);
}

.press-facts dl > div:first-child {
  padding-top: 0;
  border-top: 0;
}

.press-facts dt {
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.press-facts dd {
  margin: 0;
  font-size: 0.98rem;
  font-weight: 600;
  letter-spacing: -0.015em;
}

.press-assets-block,
.press-shots-block {
  margin-top: 56px;
}

.press-asset-list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 22px;
}

.press-asset-list > li {
  display: flex;
  flex-direction: column;
  min-height: 100%;
  border: 1px solid var(--line);
  border-radius: 22px;
  background: var(--bg-raised);
  overflow: hidden;
}

.press-asset-preview {
  display: grid;
  place-items: center;
  min-height: 180px;
  padding: 28px;
  background:
    linear-gradient(135deg, rgba(8, 122, 110, 0.08), transparent 55%),
    var(--bg-soft);
}

.press-asset-preview-icon img {
  width: 96px;
  height: 96px;
  border-radius: 22px;
  box-shadow: var(--shadow);
}

.press-asset-preview-mark img {
  width: 88px;
  height: 88px;
}

.press-asset-preview-social {
  padding: 18px;
}

.press-asset-preview-social img {
  width: 100%;
  height: auto;
  border-radius: 12px;
  box-shadow: 0 12px 30px rgba(18, 34, 28, 0.12);
}

.press-asset-meta {
  display: flex;
  flex: 1;
  flex-direction: column;
  gap: 8px;
  padding: 22px 22px 24px;
}

.press-asset-meta strong {
  font-size: 1rem;
  letter-spacing: -0.02em;
}

.press-asset-meta span {
  color: var(--muted);
  font-size: 0.82rem;
}

.press-asset-meta .button {
  align-self: flex-start;
  min-height: 42px;
  margin-top: auto;
  padding: 8px 16px;
  font-size: 0.84rem;
}

.press-shot-list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  gap: 14px;
}

.press-shot-list a {
  display: block;
  border-radius: 18px;
  overflow: hidden;
  box-shadow: var(--phone-shadow);
  text-decoration: none;
  transition: transform 160ms ease;
}

.press-shot-list a:hover {
  transform: translateY(-3px);
}

.press-shot-list img {
  width: 100%;
  height: auto;
}

footer {
  width: min(calc(100% - 40px), var(--max));
  min-height: 112px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 24px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.82rem;
}

footer .footer-brand {
  color: var(--ink);
}

.footer-links {
  display: flex;
  gap: 24px;
}

footer > p {
  justify-self: end;
}

@media (max-width: 980px) {
  .hero {
    grid-template-columns: minmax(0, 1fr) minmax(310px, 0.75fr);
    gap: 30px;
  }

  .hero-halo {
    width: 410px;
  }

  .readout-top {
    inset-inline-end: -20px;
  }

  .readout-bottom {
    inset-inline-start: -35px;
  }

  .feature-card-wide,
  .feature-history {
    grid-template-columns: 1fr 1fr;
  }

  .phone-front {
    inset-inline-end: 8px;
  }

  .phone-back {
    inset-inline-start: 6px;
  }

  .history-phone-main {
    inset-inline-start: 10px;
  }

  .history-phone-detail {
    inset-inline-end: -20px;
  }

  .commitment {
    grid-template-columns: 0.6fr 1.4fr;
    gap: 35px;
  }

  .commitment-mark img {
    width: 250px;
    height: 250px;
  }
}

@media (max-width: 760px) {
  .site-header {
    width: min(calc(100% - 28px), var(--max));
  }

  .site-header nav a:not(.nav-cta) {
    display: none;
  }

  .hero {
    width: min(calc(100% - 32px), var(--max));
    min-height: auto;
    padding: 70px 0 86px;
    grid-template-columns: 1fr;
    text-align: center;
  }

  .hero::before {
    inset: 0 -20vw 52% -20vw;
  }

  .hero-lede {
    margin-inline: auto;
  }

  .hero-actions,
  .proof-list {
    justify-content: center;
  }

  .hero-visual {
    min-height: 590px;
    margin-top: 25px;
  }

  .readout-top {
    inset-inline-end: calc(50% - 205px);
  }

  .readout-bottom {
    inset-inline-start: calc(50% - 210px);
  }

  .principle-grid,
  .feature-grid,
  .tier-grid,
  .download,
  .commitment,
  .press-grid,
  .press-asset-list {
    grid-template-columns: 1fr;
  }

  .press-shot-list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .principle-grid article,
  .principle-grid article + article {
    padding: 28px 0;
    border-inline-end: 0;
    border-bottom: 1px solid #294039;
  }

  .principle-grid article:last-child {
    border-bottom: 0;
  }

  .features {
    width: min(calc(100% - 28px), var(--max));
    padding: 88px 0;
  }

  .feature-card-wide,
  .feature-history {
    grid-column: auto;
    grid-template-columns: 1fr;
  }

  .feature-card .feature-copy {
    padding: 38px 30px;
  }

  .feature-card-wide {
    min-height: 980px;
  }

  .feature-tune .device-pair {
    min-height: 530px;
  }

  .phone-back {
    inset-inline-start: calc(50% - 200px);
  }

  .phone-front {
    inset-inline-end: calc(50% - 200px);
  }

  .feature-card-tall {
    min-height: 730px;
  }

  .feature-history {
    min-height: 1060px;
  }

  .history-phones {
    min-height: 590px;
    order: 2;
  }

  .feature-history .feature-copy {
    order: 1;
  }

  .history-phone-main {
    inset-inline-start: calc(50% - 205px);
  }

  .history-phone-detail {
    inset-inline-end: calc(50% - 205px);
  }

  .tier-card {
    min-height: 0;
  }

  .commitment {
    padding-block: 90px;
  }

  .commitment-mark {
    min-height: 310px;
  }

  .commitment-mark::before {
    width: 310px;
  }

  .download {
    width: min(calc(100% - 36px), var(--max));
    gap: 35px;
  }

  .press {
    width: min(calc(100% - 36px), var(--max));
    padding: 88px 0 96px;
  }

  .press-boilerplate,
  .press-facts {
    padding: 26px 24px;
  }

  .press-shot-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  footer {
    padding: 34px 0;
    grid-template-columns: 1fr;
    justify-items: center;
    text-align: center;
  }

  footer > p {
    margin: 0;
    justify-self: center;
  }
}

@media (max-width: 480px) {
  .site-header {
    min-height: 70px;
  }

  .brand span {
    font-size: 0.95rem;
  }

  .site-header .nav-cta {
    padding: 8px 13px;
    font-size: 0.8rem;
  }

  .hero h1 {
    font-size: clamp(3.1rem, 16vw, 4.2rem);
  }

  .hero-visual {
    min-height: 530px;
  }

  .hero-halo {
    width: 340px;
  }

  .phone-hero {
    width: 230px;
  }

  .readout {
    width: 126px;
    padding: 11px 12px;
  }

  .readout-top {
    top: 78px;
    inset-inline-end: 0;
  }

  .readout-bottom {
    bottom: 80px;
    inset-inline-start: 0;
  }

  .feature-card h3 {
    font-size: 2.2rem;
  }

  .feature-tune .device-pair {
    min-height: 500px;
  }

  .phone-feature {
    width: 218px;
  }

  .phone-back,
  .history-phone-main {
    inset-inline-start: -8px;
  }

  .phone-front,
  .history-phone-detail {
    inset-inline-end: -8px;
  }

  .feature-card-tall .phone {
    min-width: 220px;
  }

  .feature-history {
    min-height: 980px;
  }

  .history-phones {
    min-height: 520px;
  }

  .one-time {
    position: static;
    width: fit-content;
    margin-bottom: 28px;
  }

  .store-badges {
    align-items: flex-start;
    flex-direction: column;
  }

  .footer-links {
    flex-wrap: wrap;
    justify-content: center;
  }
}

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

  *, *::before, *::after {
    transition-duration: 0.01ms !important;
  }
}