:root {
  color-scheme: dark;
  --ink: rgba(255, 255, 255, 0.96);
  --muted: rgba(242, 250, 252, 0.68);
  --faint: rgba(242, 250, 252, 0.42);
  --glass: rgba(255, 255, 255, 0.13);
  --stroke: rgba(255, 255, 255, 0.25);
  --accent: #8d9cff;
  --positive: #45a58f;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: ui-rounded, "SF Pro Rounded", "SF Pro Display", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background:
    radial-gradient(circle at 78% 18%, rgba(141, 156, 255, 0.26), transparent 30rem),
    radial-gradient(circle at 78% 42%, rgba(255, 255, 255, 0.10), transparent 24rem),
    linear-gradient(180deg, #62c4d1 0%, #5b99a5 28%, #173034 72%, #03080b 100%);
  color: var(--ink);
  letter-spacing: 0;
  overflow-x: hidden;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background:
    radial-gradient(ellipse at 86% 36%, rgba(17, 23, 21, 0.62), transparent 34rem),
    linear-gradient(115deg, transparent 0 42%, rgba(16, 32, 34, 0.25) 43% 58%, rgba(0, 0, 0, 0.48) 59% 100%);
  opacity: 0.9;
}

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

main,
.nav {
  position: relative;
  z-index: 1;
}

.hero {
  min-height: 100svh;
  padding: 28px clamp(22px, 5vw, 72px) 72px;
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand,
.eyebrow,
.nav-links a {
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.32em;
  text-transform: uppercase;
}

.nav-links {
  display: flex;
  gap: clamp(16px, 3vw, 34px);
  color: var(--muted);
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(330px, 520px);
  align-items: center;
  gap: clamp(36px, 7vw, 96px);
  max-width: 1180px;
  min-height: calc(100svh - 110px);
  margin: 0 auto;
}

.hero-grid > * {
  min-width: 0;
}

.hero-copy {
  max-width: 680px;
}

.eyebrow {
  margin: 0 0 18px;
  color: var(--accent);
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  max-width: 760px;
  margin-bottom: 24px;
  font-size: clamp(56px, 8vw, 104px);
  line-height: 0.98;
  font-weight: 700;
}

h2 {
  margin-bottom: 18px;
  font-size: clamp(38px, 5vw, 64px);
  line-height: 1.02;
}

h3 {
  margin-bottom: 10px;
  font-size: 23px;
}

.lede,
.feature-copy p,
.glass-card p {
  color: var(--muted);
  font-size: clamp(17px, 2vw, 22px);
  line-height: 1.55;
}

.signup {
  display: flex;
  gap: 10px;
  width: min(100%, 520px);
  margin-top: 34px;
  padding: 8px;
  border: 1px solid var(--stroke);
  border-radius: 999px;
  background: linear-gradient(135deg, rgba(255,255,255,0.24), rgba(255,255,255,0.08));
  box-shadow: 0 24px 70px rgba(0, 0, 0, 0.18);
  backdrop-filter: blur(22px);
}

.app-store-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 56px;
  margin-top: 34px;
  padding: 0 30px;
  border-radius: 999px;
  color: #101719;
  font-weight: 800;
  background: #fff;
  box-shadow: 0 24px 70px rgba(0, 0, 0, 0.18);
}

.app-store-cta:active {
  transform: translateY(1px);
}

input,
button {
  min-width: 0;
  border: 0;
  font: inherit;
}

input {
  flex: 1;
  padding: 0 18px;
  color: var(--ink);
  background: transparent;
  outline: none;
}

input::placeholder {
  color: rgba(16, 23, 25, 0.52);
}

input:disabled {
  opacity: 0.72;
}

button {
  min-height: 52px;
  padding: 0 24px;
  border-radius: 999px;
  color: #101719;
  font-weight: 800;
  cursor: pointer;
  background: #fff;
}

button:disabled {
  cursor: default;
}

.signup-status {
  min-height: 20px;
  margin: 10px 0 0;
  color: rgba(242, 250, 252, 0.78);
  font-size: 13.5px;
}

.signup-status[data-state="error"] {
  color: rgba(255, 232, 225, 0.86);
}

.microcopy {
  margin-top: 14px;
  color: var(--faint);
  font-size: 14px;
}

.phone-stack {
  position: relative;
  min-height: 720px;
}

.phone {
  position: absolute;
  width: min(72vw, 340px);
  border-radius: 42px;
  box-shadow: 0 28px 80px rgba(0, 0, 0, 0.45);
}

.phone-main {
  right: 0;
  top: 34px;
  z-index: 2;
}

.phone-secondary {
  left: 0;
  top: 150px;
  width: min(58vw, 280px);
  opacity: 0.82;
  filter: saturate(0.9);
}

.band,
.feature-row {
  position: relative;
  z-index: 1;
  max-width: 1180px;
  margin: 0 auto;
  padding: 90px clamp(22px, 5vw, 72px);
}

.section-heading {
  max-width: 760px;
  margin-bottom: 30px;
}

.cards {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.glass-card {
  min-height: 240px;
  padding: 28px;
  border: 1px solid var(--stroke);
  border-radius: 28px;
  background: linear-gradient(135deg, rgba(255,255,255,0.22), rgba(255,255,255,0.07));
  box-shadow: inset 0 1px 0 rgba(255,255,255,0.28), 0 24px 70px rgba(0, 0, 0, 0.22);
  backdrop-filter: blur(20px);
}

.glass-card span {
  display: block;
  margin-bottom: 46px;
  color: var(--accent);
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0.22em;
}

.feature-row {
  display: grid;
  grid-template-columns: minmax(260px, 360px) minmax(0, 1fr);
  align-items: center;
  gap: clamp(40px, 7vw, 96px);
  padding-bottom: 130px;
}

.feature-phone {
  width: min(100%, 320px);
  border-radius: 42px;
  box-shadow: 0 28px 80px rgba(0, 0, 0, 0.45);
}

.feature-copy {
  max-width: 660px;
}

.text-link {
  display: inline-block;
  margin-top: 12px;
  color: var(--ink);
  font-size: 14px;
  font-weight: 800;
  letter-spacing: 0.22em;
  text-transform: uppercase;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  border: 0;
}

@media (max-width: 880px) {
  body {
    background:
      radial-gradient(circle at 84% 10%, rgba(141, 156, 255, 0.22), transparent 18rem),
      radial-gradient(circle at 40% 42%, rgba(255, 255, 255, 0.08), transparent 18rem),
      linear-gradient(180deg, #58aeb8 0%, #295e65 36%, #0d2428 68%, #03080b 100%);
  }

  body::before {
    background:
      linear-gradient(108deg, transparent 0 42%, rgba(10, 25, 28, 0.24) 43% 58%, rgba(0, 0, 0, 0.36) 59% 100%);
  }

  .hero {
    min-height: auto;
    padding: 18px clamp(18px, 5.6vw, 28px) 44px;
  }

  .nav {
    min-height: 42px;
  }

  .brand,
  .eyebrow,
  .nav-links a {
    font-size: 10.5px;
    letter-spacing: 0.28em;
  }

  .nav-links {
    display: none;
  }

  .hero-grid,
  .feature-row {
    grid-template-columns: 1fr;
    gap: 34px;
  }

  .hero-grid {
    min-height: 0;
    padding-top: 42px;
  }

  .hero-copy {
    max-width: 100%;
    min-width: 0;
  }

  .eyebrow {
    margin-bottom: 14px;
  }

  h1 {
    max-width: 11ch;
    margin-bottom: 18px;
    font-size: clamp(42px, 12vw, 52px);
    line-height: 1;
  }

  h2 {
    font-size: clamp(31px, 9vw, 42px);
    line-height: 1.04;
  }

  h3 {
    font-size: 20px;
  }

  .lede,
  .feature-copy p,
  .glass-card p {
    font-size: 15.5px;
    line-height: 1.48;
  }

  .lede {
    max-width: 32ch;
  }

  .signup {
    width: 100%;
    margin-top: 26px;
    padding: 7px;
    border-radius: 24px;
    flex-direction: column;
    align-items: stretch;
  }

  .app-store-cta {
    width: 334px;
    max-width: calc(100vw - 56px);
    min-height: 52px;
    margin-top: 26px;
    padding: 0 20px;
  }

  input {
    min-height: 48px;
    padding: 0 14px;
    border-radius: 18px;
    background: rgba(255, 255, 255, 0.08);
  }

  input::placeholder {
    color: rgba(242, 250, 252, 0.62);
  }

  button {
    min-height: 48px;
    padding: 0 18px;
  }

  .microcopy {
    max-width: 24ch;
    font-size: 12.5px;
    line-height: 1.4;
  }

  .phone-stack {
    width: min(100%, 346px);
    min-height: 456px;
    margin: 4px auto 0;
  }

  .phone {
    width: min(66vw, 258px);
    border-radius: 32px;
    box-shadow: 0 22px 56px rgba(0, 0, 0, 0.42);
  }

  .phone-main {
    right: 4px;
    top: 0;
  }

  .phone-secondary {
    left: 0;
    top: 92px;
    width: min(54vw, 214px);
  }

  .band,
  .feature-row {
    padding: 56px clamp(18px, 5.6vw, 28px);
  }

  .section-heading {
    margin-bottom: 22px;
  }

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

  .glass-card {
    min-height: 0;
    padding: 24px;
    border-radius: 24px;
  }

  .glass-card span {
    margin-bottom: 32px;
  }

  .feature-row {
    padding-bottom: 72px;
  }

  .feature-phone {
    width: min(76vw, 292px);
    margin: 0 auto;
    border-radius: 34px;
  }

  .feature-copy {
    max-width: 100%;
  }
}

@media (max-width: 420px) {
  .hero-grid {
    padding-top: 30px;
  }

  h1 {
    font-size: clamp(38px, 11.2vw, 46px);
  }

  .phone-stack {
    min-height: 420px;
  }

  .phone {
    width: min(68vw, 240px);
  }

  .phone-secondary {
    width: min(55vw, 198px);
    top: 84px;
  }
}

@media (max-width: 340px) {
  .hero {
    padding-inline: 16px;
  }

  h1 {
    font-size: 36px;
  }

  .signup {
    border-radius: 22px;
  }

  .phone-stack {
    min-height: 382px;
  }
}