:root {
  color-scheme: dark;
  --bg: #0c0d10;
  --panel: #1e2026;
  --panel-strong: #282a31;
  --paper: #ece4d2;
  --ink: #f4efe5;
  --muted: #aaa79e;
  --line: rgba(255, 255, 255, 0.09);
  --cyan: #6f9eaa;
  --mint: #86b08a;
  --amber: #c78e4f;
  --red: #c25c56;
  --blue: #6b88b0;
  --radius: 8px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: linear-gradient(180deg, #15171d 0%, var(--bg) 42%, #08090b 100%);
  color: var(--ink);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.5;
}

a {
  color: inherit;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1rem clamp(1rem, 4vw, 3rem);
  background: rgba(12, 13, 16, 0.86);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(16px);
}

.brand,
nav,
.actions {
  display: flex;
  align-items: center;
}

.brand {
  gap: 0.65rem;
  text-decoration: none;
  font-weight: 800;
  letter-spacing: 0;
}

.brand img {
  border-radius: 8px;
}

nav {
  gap: clamp(0.65rem, 2vw, 1.2rem);
  color: var(--muted);
  font-size: 0.94rem;
}

nav a,
footer a {
  text-decoration: none;
}

nav a:hover,
footer a:hover {
  color: var(--ink);
}

.hero {
  min-height: min(760px, calc(100vh - 68px));
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(18rem, 28rem);
  align-items: center;
  gap: clamp(2rem, 6vw, 6rem);
  padding: clamp(2rem, 5vw, 4rem) clamp(1rem, 5vw, 5rem) 2.5rem;
}

.hero-copy {
  max-width: 43rem;
}

.eyebrow {
  margin: 0 0 0.8rem;
  color: var(--paper);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

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

code {
  border: 1px solid var(--line);
  border-radius: 6px;
  background: rgba(255, 255, 255, 0.08);
  padding: 0.08rem 0.32rem;
  color: var(--ink);
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 0.92em;
}

h1 {
  margin-bottom: 1rem;
  font-size: clamp(4rem, 14vw, 9rem);
  line-height: 0.86;
  letter-spacing: 0;
}

h2 {
  max-width: 46rem;
  margin-bottom: 1rem;
  font-size: clamp(2rem, 5vw, 4.4rem);
  line-height: 1;
  letter-spacing: 0;
}

h3 {
  margin-bottom: 0.35rem;
  font-size: 1.05rem;
}

.lede {
  max-width: 36rem;
  color: var(--muted);
  font-size: clamp(1.1rem, 2vw, 1.35rem);
}

.actions {
  flex-wrap: wrap;
  gap: 0.8rem;
  margin-top: 2rem;
}

.button {
  min-height: 2.8rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.75rem 1rem;
  border-radius: var(--radius);
  font-weight: 800;
  text-decoration: none;
}

.button.primary {
  background: var(--paper);
  color: #15171d;
}

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

.device-stage {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 30rem;
}

.phone-preview,
.watch-preview {
  height: auto;
  display: block;
  border: 1px solid var(--line);
  background: #0c0d10;
  box-shadow: 0 2rem 5rem rgba(0, 0, 0, 0.36);
}

.phone-preview {
  width: min(18rem, 58vw);
  border-radius: 32px;
}

.watch-preview {
  width: min(10.5rem, 34vw);
  margin-left: -3.6rem;
  border-radius: 42px;
  transform: translateY(4rem);
}

.band {
  margin: 0 clamp(1rem, 5vw, 5rem);
  padding: 1rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.045);
}

.summary {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
}

.summary div {
  min-width: 0;
}

.summary strong,
.summary span {
  display: block;
}

.summary span,
.section p,
.steps p,
.mode-grid p,
.install p {
  color: var(--muted);
}

.section {
  padding: clamp(4rem, 8vw, 7rem) clamp(1rem, 5vw, 5rem);
}

.section-heading {
  margin-bottom: 2rem;
}

.steps {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.steps li,
.mode-grid article {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--panel);
}

.steps li {
  padding: 1rem;
}

.steps li > span {
  width: 2.1rem;
  height: 2.1rem;
  display: grid;
  place-items: center;
  margin-bottom: 1rem;
  border-radius: 999px;
  background: var(--paper);
  color: #15171d;
  font-weight: 900;
}

.mode-grid {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 1rem;
}

.mode-grid article {
  padding: 1rem;
}

.install {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(16rem, 28rem);
  gap: 2rem;
  align-items: start;
}

.command-list {
  display: grid;
  gap: 0.65rem;
  padding: 1rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--panel-strong);
}

.command-list span {
  overflow-wrap: anywhere;
  color: var(--muted);
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 0.9rem;
}

.notice {
  margin-bottom: clamp(3rem, 7vw, 5rem);
}

.notice p {
  max-width: 62rem;
  margin: 0;
  color: var(--muted);
}

footer {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  padding: 1.4rem clamp(1rem, 5vw, 5rem);
  border-top: 1px solid var(--line);
  color: var(--muted);
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
}

.legal-page {
  padding: clamp(3rem, 7vw, 6rem) clamp(1rem, 5vw, 5rem);
}

.legal-hero {
  max-width: 56rem;
  margin-bottom: clamp(2rem, 5vw, 4rem);
}

.legal-hero h1 {
  font-size: clamp(3rem, 9vw, 6rem);
}

.legal-content {
  max-width: 54rem;
}

.legal-content h2 {
  margin-top: 2.2rem;
  margin-bottom: 0.55rem;
  font-size: clamp(1.35rem, 3vw, 2rem);
}

.legal-content ol,
.legal-content ul {
  color: var(--muted);
  padding-left: 1.25rem;
}

.legal-content li {
  margin-bottom: 0.45rem;
}

.legal-content dl {
  display: grid;
  grid-template-columns: minmax(8rem, 12rem) minmax(0, 1fr);
  gap: 0.8rem 1rem;
}

.legal-content dt {
  color: var(--ink);
  font-weight: 800;
}

.legal-content dd {
  margin: 0;
  color: var(--muted);
}

@media (max-width: 980px) {
  .hero,
  .install {
    grid-template-columns: 1fr;
  }

  .hero {
    padding-top: 3rem;
  }

  .device-stage {
    min-height: 24rem;
  }

  .summary,
  .steps,
  .mode-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 620px) {
  .site-header,
  footer {
    align-items: flex-start;
    flex-direction: column;
  }

  nav {
    width: 100%;
    justify-content: flex-start;
    flex-wrap: wrap;
  }

  .summary,
  .steps,
  .mode-grid {
    grid-template-columns: 1fr;
  }

  .device-stage {
    min-height: 28rem;
  }

  .phone-preview {
    width: min(16rem, 74vw);
  }

  .watch-preview {
    width: min(9rem, 42vw);
    margin-left: -3rem;
  }

  .legal-content dl {
    grid-template-columns: 1fr;
  }
}