:root {
  color-scheme: dark;
  --background: #040607;
  --background-top: #071116;
  --surface: #0d1215;
  --surface-raised: #131a1f;
  --surface-muted: #090c0f;
  --accent: #d3ff7d;
  --accent-strong: #6bf5be;
  --accent-warm: #f8f17f;
  --ambient-blue: #244c69;
  --ambient-mint: #164c42;
  --text: #ffffff;
  --text-soft: rgba(255, 255, 255, 0.72);
  --text-muted: rgba(255, 255, 255, 0.48);
  --line: rgba(255, 255, 255, 0.12);
  --shadow: rgba(0, 0, 0, 0.42);
  --max: 1160px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  background:
    radial-gradient(circle at 76% 8%, rgba(107, 245, 190, 0.22), transparent 34rem),
    radial-gradient(circle at 18% 28%, rgba(36, 76, 105, 0.28), transparent 28rem),
    linear-gradient(180deg, var(--background-top), var(--background) 46%, #030304);
  color: var(--text);
  font-family: ui-rounded, "SF Pro Rounded", ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  letter-spacing: 0;
}

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

a {
  color: inherit;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  width: min(var(--max), calc(100% - 40px));
  height: 72px;
  margin: 0 auto;
  backdrop-filter: blur(18px);
}

.brand,
.site-nav,
.hero-actions,
.hero-metrics,
.check-list li,
.site-footer {
  display: flex;
  align-items: center;
}

.brand {
  gap: 10px;
  text-decoration: none;
  font-weight: 900;
  font-size: 1.2rem;
}

.brand img {
  border-radius: 12px;
  box-shadow: 0 12px 26px rgba(107, 245, 190, 0.22);
}

.site-nav {
  gap: 8px;
  color: var(--text-soft);
  font-size: 0.94rem;
}

.site-nav a {
  min-height: 40px;
  padding: 10px 13px;
  border-radius: 999px;
  text-decoration: none;
}

.site-nav a:hover,
.site-nav a:focus-visible {
  background: rgba(255, 255, 255, 0.08);
  color: var(--text);
}

.nav-cta {
  border: 1px solid rgba(211, 255, 125, 0.36);
  color: var(--accent);
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(420px, 1.1fr);
  align-items: center;
  gap: clamp(28px, 6vw, 74px);
  width: min(var(--max), calc(100% - 40px));
  min-height: calc(88svh - 72px);
  margin: 0 auto;
  padding: clamp(28px, 5vw, 58px) 0 70px;
}

.hero-copy {
  position: relative;
  z-index: 2;
}

.eyebrow {
  margin: 0 0 14px;
  color: var(--accent-strong);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

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

h1 {
  max-width: 10ch;
  margin-bottom: 20px;
  font-size: clamp(3.6rem, 8vw, 7.5rem);
  line-height: 0.9;
  letter-spacing: 0;
}

h2 {
  margin-bottom: 18px;
  font-size: clamp(2.2rem, 4.5vw, 4.25rem);
  line-height: 1;
  letter-spacing: 0;
}

h3 {
  margin-bottom: 10px;
  font-size: 1.25rem;
}

.hero-text,
.copy-block p,
.privacy-copy p,
.feature-card p {
  color: var(--text-soft);
  font-size: 1.08rem;
  line-height: 1.65;
}

.hero-text {
  max-width: 590px;
  font-size: clamp(1.08rem, 2vw, 1.34rem);
}

.hero-actions {
  flex-wrap: wrap;
  gap: 12px;
  margin: 30px 0;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 50px;
  padding: 0 20px;
  border-radius: 999px;
  font-weight: 800;
  text-decoration: none;
  transition: transform 160ms ease, border-color 160ms ease, background 160ms ease;
}

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

.primary {
  background: linear-gradient(135deg, var(--accent-strong), var(--accent), var(--accent-warm));
  color: #071116;
  box-shadow: 0 18px 48px rgba(107, 245, 190, 0.24);
}

.secondary {
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.055);
  color: var(--text);
}

.hero-metrics {
  flex-wrap: wrap;
  gap: 10px;
  margin: 0;
}

.hero-metrics div {
  min-width: 136px;
  padding: 14px 16px;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: rgba(13, 18, 21, 0.72);
}

.hero-metrics dt {
  color: var(--accent);
  font-size: 1.55rem;
  font-weight: 900;
}

.hero-metrics dd {
  margin: 2px 0 0;
  color: var(--text-muted);
  font-size: 0.92rem;
  font-weight: 700;
}

.product-scene {
  position: relative;
  min-height: 640px;
  isolation: isolate;
}

.product-scene::before {
  position: absolute;
  inset: 11% 0 18% 12%;
  z-index: -1;
  border-radius: 48px;
  background:
    linear-gradient(135deg, rgba(107, 245, 190, 0.2), rgba(248, 241, 127, 0.1)),
    rgba(13, 18, 21, 0.54);
  filter: blur(24px);
  content: "";
}

.phone {
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 34px;
  background: #030304;
  box-shadow: 0 36px 90px var(--shadow);
}

.phone-main {
  width: min(48vw, 360px);
  margin-left: auto;
  transform: rotate(2deg);
}

.phone-side {
  position: absolute;
  left: 0;
  bottom: 18px;
  width: min(34vw, 260px);
  transform: rotate(-8deg);
  opacity: 0.95;
}

.section {
  width: min(var(--max), calc(100% - 40px));
  margin: 0 auto;
  padding: clamp(68px, 10vw, 120px) 0;
}

.feature-band {
  border-top: 1px solid var(--line);
}

.section-heading {
  max-width: 780px;
  margin-bottom: 32px;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
}

.feature-card {
  min-height: 236px;
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: 24px;
  background:
    linear-gradient(145deg, rgba(19, 26, 31, 0.95), rgba(9, 12, 15, 0.84)),
    var(--surface);
}

.feature-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  margin-bottom: 28px;
  border-radius: 14px;
  background: rgba(107, 245, 190, 0.16);
  color: var(--accent);
  font-weight: 900;
}

.split {
  display: grid;
  grid-template-columns: minmax(0, 0.84fr) minmax(360px, 1fr);
  align-items: center;
  gap: clamp(32px, 6vw, 76px);
}

.copy-block {
  max-width: 560px;
}

.check-list {
  display: grid;
  gap: 12px;
  padding: 0;
  margin: 28px 0 0;
  list-style: none;
}

.check-list li {
  gap: 12px;
  color: var(--text-soft);
  font-weight: 700;
}

.check-list li::before {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 24px;
  height: 24px;
  flex: 0 0 auto;
  border-radius: 50%;
  background: rgba(107, 245, 190, 0.18);
  color: var(--accent-strong);
  content: "✓";
}

.screen-pair {
  display: flex;
  justify-content: center;
  gap: 18px;
  min-height: 520px;
}

.small-phone {
  width: min(43%, 255px);
  align-self: flex-end;
}

.raised {
  align-self: flex-start;
}

.privacy {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.privacy-copy {
  max-width: 760px;
}

.final-cta {
  flex: 0 0 auto;
}

.site-footer {
  justify-content: space-between;
  width: min(var(--max), calc(100% - 40px));
  min-height: 92px;
  margin: 0 auto;
  color: var(--text-muted);
}

.site-footer span {
  color: var(--text);
  font-weight: 900;
}

.site-footer a {
  text-decoration: none;
}

.site-footer a:hover,
.site-footer a:focus-visible {
  color: var(--accent);
}

@media (max-width: 920px) {
  .hero,
  .split {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: auto;
    padding-top: 26px;
  }

  h1 {
    max-width: 8ch;
  }

  .product-scene {
    min-height: 520px;
  }

  .phone-main {
    width: min(66vw, 330px);
  }

  .phone-side {
    width: min(48vw, 230px);
  }

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

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

@media (max-width: 640px) {
  .site-header {
    width: min(100% - 28px, var(--max));
    height: 64px;
  }

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

  .hero,
  .section,
  .site-footer {
    width: min(100% - 28px, var(--max));
  }

  .hero {
    padding-bottom: 28px;
  }

  h1 {
    font-size: clamp(3rem, 15vw, 3.65rem);
  }

  h2 {
    font-size: clamp(2rem, 11vw, 3rem);
  }

  .hero-metrics {
    display: none;
  }

  .product-scene {
    min-height: 220px;
  }

  .phone {
    border-radius: 26px;
  }

  .phone-main {
    width: min(58vw, 220px);
    height: 220px;
    object-fit: cover;
    object-position: top;
  }

  .phone-side {
    width: min(38vw, 150px);
    height: 150px;
    bottom: 0;
    object-fit: cover;
    object-position: top;
  }

  .feature-grid {
    grid-template-columns: 1fr;
  }

  .section {
    padding-top: 42px;
    padding-bottom: 58px;
  }

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

  .screen-pair {
    min-height: 430px;
    gap: 12px;
  }

  .small-phone {
    width: min(48%, 210px);
  }

  .button {
    width: 100%;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
  }
}