:root {
  --ink: #f2f6ed;
  --muted: #a9b2a4;
  --dim: #737d70;
  --night: #10130f;
  --night-soft: #171b16;
  --panel: #1d221b;
  --panel-raised: #252b22;
  --line: #343b30;
  --activity: #b3f038;
  --activity-deep: #7fb600;
  --distance: #63d1ff;
  --heart: #ff385f;
  --caution: #ffc45c;
  --max-width: 1180px;
  color-scheme: dark;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background:
    radial-gradient(circle at 82% 4%, rgba(179, 240, 56, .09), transparent 28rem),
    var(--night);
  color: var(--ink);
  font-family: ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 17px;
  line-height: 1.62;
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; }
a:focus-visible { outline: 3px solid var(--distance); outline-offset: 4px; border-radius: 4px; }
.skip-link {
  position: fixed;
  top: 12px;
  left: 12px;
  z-index: 20;
  padding: 10px 14px;
  border-radius: 10px;
  background: var(--ink);
  color: var(--night);
  transform: translateY(-180%);
}
.skip-link:focus { transform: translateY(0); }

.site-header,
footer {
  width: min(100%, var(--max-width));
  margin: 0 auto;
  padding: 26px clamp(20px, 5vw, 60px);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
}
.site-header { border-bottom: 1px solid rgba(255, 255, 255, .06); }
.wordmark {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  color: var(--ink);
  font-size: .95rem;
  font-weight: 780;
  letter-spacing: -.02em;
  text-decoration: none;
}
.brand-icon {
  display: block;
  width: 38px;
  height: 38px;
  flex: none;
  border-radius: 10px;
  box-shadow: 0 5px 16px rgba(0, 215, 235, .12);
}
.site-header nav,
footer nav { display: flex; flex-wrap: wrap; gap: 10px 26px; }
.site-header nav a,
footer nav a {
  color: var(--muted);
  font-size: .88rem;
  font-weight: 700;
  text-decoration: none;
}
.site-header nav a:hover,
footer nav a:hover,
.site-header nav a[aria-current="page"] { color: var(--ink); }
.site-header nav a[aria-current="page"]::after {
  content: "";
  display: block;
  width: 100%;
  height: 2px;
  margin-top: 5px;
  background: var(--activity);
}

main { overflow: hidden; }
.hero,
.section,
.privacy-band,
.safety-note,
.document {
  width: min(100%, var(--max-width));
  margin: 0 auto;
  padding-right: clamp(20px, 5vw, 60px);
  padding-left: clamp(20px, 5vw, 60px);
}
.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(380px, .92fr);
  align-items: center;
  gap: clamp(48px, 8vw, 100px);
  min-height: 770px;
  padding-top: clamp(80px, 11vw, 146px);
  padding-bottom: clamp(90px, 12vw, 154px);
}
.hero-copy { position: relative; z-index: 1; }
.eyebrow {
  margin: 0;
  color: var(--activity);
  font-size: .73rem;
  font-weight: 820;
  letter-spacing: .17em;
  line-height: 1.4;
  text-transform: uppercase;
}
.live-dot {
  display: inline-block;
  width: 7px;
  height: 7px;
  margin-right: 7px;
  border-radius: 50%;
  background: var(--activity);
  box-shadow: 0 0 0 5px rgba(179, 240, 56, .11);
}
h1,
h2,
h3,
p { text-wrap: pretty; }
h1,
.section-heading h2,
.choice h2,
.privacy-band h2,
.document-header h1 {
  font-family: ui-rounded, "SF Pro Rounded", ui-sans-serif, -apple-system, BlinkMacSystemFont, sans-serif;
  font-weight: 800;
  letter-spacing: -.065em;
  line-height: .98;
}
h1 { margin: 22px 0 26px; font-size: clamp(3.7rem, 7vw, 6.8rem); }
h1 em { color: var(--activity); font-style: normal; }
.lede { max-width: 670px; color: var(--muted); font-size: clamp(1.1rem, 2vw, 1.38rem); line-height: 1.55; }
.hero-actions { display: flex; flex-wrap: wrap; align-items: center; gap: 20px 28px; margin-top: 38px; }
.button {
  display: inline-block;
  padding: 13px 21px;
  border: 1px solid var(--activity);
  border-radius: 999px;
  background: var(--activity);
  color: #11150d;
  font-size: .92rem;
  font-weight: 820;
  text-decoration: none;
  transition: transform .18s ease, background-color .18s ease;
}
.button:hover { background: #c5ff53; transform: translateY(-2px); }
.text-link { color: var(--ink); font-size: .92rem; font-weight: 750; text-decoration-color: var(--dim); text-underline-offset: 5px; }
.text-link:hover { color: var(--activity); }
.trust-list {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 28px;
  margin: 46px 0 0;
  padding: 0;
  color: var(--dim);
  font-size: .78rem;
  font-weight: 750;
  letter-spacing: .05em;
  list-style: none;
  text-transform: uppercase;
}
.trust-list li::before { content: "✓"; margin-right: 7px; color: var(--activity); }

.app-preview {
  position: relative;
  width: min(100%, 490px);
  margin-left: auto;
  padding: 11px;
  border: 1px solid #3b4238;
  border-radius: 46px;
  background: #050505;
  box-shadow: 0 34px 90px rgba(0, 0, 0, .45), inset 0 0 0 1px rgba(255, 255, 255, .04);
  transform: rotate(1.2deg);
}
.app-preview::before {
  content: "";
  position: absolute;
  inset: -45px -55px;
  z-index: -1;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(99, 209, 255, .10), transparent 64%);
}
.preview-screen {
  overflow: hidden;
  border: 1px solid #242424;
  border-radius: 36px;
  background: #000;
  color: #fff;
}
.preview-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 20px;
  padding: 30px 30px 0;
}
.preview-header > div { display: grid; gap: 2px; }
.preview-header strong { font-size: 1.35rem; letter-spacing: -.025em; }
.run-label { color: var(--activity); font-size: .65rem; font-weight: 820; letter-spacing: .12em; }
.recording-mode { color: #8c8c92; font-size: .66rem; font-weight: 700; }
.time-metric { margin: 33px 30px 25px; }
.metric-label { display: block; color: var(--dim); font-size: .65rem; font-weight: 820; letter-spacing: .14em; }
.time-metric strong { display: block; margin-top: 4px; font-size: clamp(3.2rem, 6vw, 4.8rem); font-variant-numeric: tabular-nums; letter-spacing: -.065em; line-height: 1; }
.primary-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 18px; padding: 0 30px 27px; }
.primary-grid .metric strong { display: block; margin-top: 4px; font-size: clamp(1.5rem, 2.8vw, 2.15rem); font-variant-numeric: tabular-nums; letter-spacing: -.045em; line-height: 1.1; }
.metric-distance strong { color: var(--distance); }
.metric-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 10px; padding: 0 20px 20px; }
.metric-tile { min-height: 91px; padding: 14px; border-radius: 18px; background: rgba(255, 255, 255, .09); }
.metric-tile strong { display: block; margin-top: 6px; font-size: 1.05rem; font-variant-numeric: tabular-nums; letter-spacing: -.02em; line-height: 1.1; }
.metric-tile small { display: block; margin-top: 6px; color: #85858b; font-size: .59rem; }
.metric-heart strong { color: var(--heart); }
.metric-activity strong { color: var(--activity); }
.preview-controls { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; padding: 13px 20px 20px; border-top: 1px solid #1d1d1d; background: rgba(36, 36, 36, .82); }
.preview-controls span { display: block; padding: 11px; border-radius: 11px; text-align: center; font-size: .76rem; font-weight: 800; }
.pause-control { background: #fff; color: #050505; }
.end-control { background: #e43636; color: #fff; }

.section { padding-top: clamp(84px, 10vw, 130px); padding-bottom: clamp(84px, 10vw, 130px); border-top: 1px solid var(--line); }
.section-heading { display: grid; grid-template-columns: .65fr 1.35fr; align-items: end; gap: 40px; }
.section-heading h2,
.choice h2,
.privacy-band h2 { max-width: 850px; margin: 0; font-size: clamp(2.6rem, 5.5vw, 5.1rem); }
.step-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; margin: 74px 0 0; padding: 0; overflow: hidden; border: 1px solid var(--line); border-radius: 28px; background: var(--line); list-style: none; }
.step-grid li { position: relative; min-height: 350px; padding: clamp(26px, 3.8vw, 42px); background: var(--night-soft); }
.step-number { color: var(--dim); font-size: .7rem; font-weight: 820; letter-spacing: .15em; }
.step-icon { display: grid; place-items: center; width: 52px; height: 52px; margin: 64px 0 26px; border: 1px solid #46503f; border-radius: 17px; color: var(--activity); font-size: 1.4rem; font-weight: 800; }
.step-grid h3 { margin: 0 0 10px; font-size: 1.36rem; letter-spacing: -.025em; }
.step-grid p { margin: 0; color: var(--muted); font-size: .95rem; }

.choice { display: grid; grid-template-columns: 1fr .9fr; align-items: center; gap: clamp(50px, 9vw, 120px); }
.choice-copy > p:last-child { max-width: 600px; margin-top: 30px; color: var(--muted); font-size: 1.08rem; }
.choice h2 { margin-top: 20px; }
.mode-stack { display: grid; gap: 16px; }
.mode-card { display: grid; grid-template-columns: auto 1fr; gap: 20px; align-items: center; padding: 25px; border: 1px solid var(--line); border-radius: 22px; background: var(--night-soft); }
.mode-card.featured { border-color: #607334; background: linear-gradient(135deg, rgba(179, 240, 56, .11), var(--night-soft)); transform: translateX(22px); }
.mode-symbol { display: grid; place-items: center; width: 54px; height: 54px; border-radius: 17px; background: var(--panel-raised); color: var(--distance); font-size: 1.75rem; }
.mode-symbol.watch { color: var(--activity); }
.mode-card h3 { margin: 0 0 3px; font-size: 1rem; }
.mode-card p { margin: 0; color: var(--muted); font-size: .86rem; line-height: 1.5; }

.privacy-band {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(45px, 9vw, 120px);
  padding-top: clamp(80px, 10vw, 120px);
  padding-bottom: clamp(80px, 10vw, 120px);
  border: 1px solid #485634;
  border-right: 0;
  border-left: 0;
  background: linear-gradient(100deg, rgba(179, 240, 56, .08), rgba(99, 209, 255, .04));
}
.privacy-band h2 { margin-top: 18px; }
.privacy-copy { align-self: end; }
.privacy-copy p { margin: 0 0 25px; color: var(--muted); font-size: 1.08rem; }
.safety-note { display: flex; align-items: flex-start; gap: 17px; padding-top: 34px; padding-bottom: 34px; color: var(--muted); font-size: .88rem; }
.safety-note > span { display: grid; place-items: center; width: 27px; height: 27px; flex: none; border: 1px solid var(--caution); border-radius: 50%; color: var(--caution); font-weight: 800; }
.safety-note p { margin: 1px 0 0; }
.safety-note strong { color: var(--ink); }

.document { max-width: 900px; padding-top: clamp(78px, 10vw, 120px); padding-bottom: clamp(90px, 11vw, 140px); }
.document-header { max-width: 760px; }
.document-header h1 { margin: 0 0 22px; font-size: clamp(3.1rem, 6vw, 5.2rem); }
.document-meta { color: var(--dim); font-size: .85rem; }
.document-header .lede { margin-top: 31px; }
.policy-content { min-width: 0; margin-top: 74px; }
.policy-content h2 { margin: 60px 0 14px; padding-top: 22px; border-top: 1px solid var(--line); font-size: clamp(1.65rem, 3vw, 2.25rem); letter-spacing: -.04em; line-height: 1.15; }
.policy-content h2:first-child { margin-top: 0; }
.policy-content h3 { margin: 34px 0 8px; font-size: 1.05rem; }
.policy-content p { max-width: 73ch; color: #c7cec2; }
.policy-content a { color: var(--distance); text-underline-offset: 4px; }

footer { align-items: flex-start; padding-top: 45px; padding-bottom: 52px; border-top: 1px solid var(--line); color: var(--dim); font-size: .78rem; }
footer > div { max-width: 330px; }
.footer-mark { margin-bottom: 12px; }
footer p { margin: 0; }

@media (max-width: 900px) {
  .hero { grid-template-columns: 1fr; min-height: 0; }
  .app-preview { max-width: 540px; margin-right: auto; transform: none; }
  .step-grid { grid-template-columns: 1fr; }
  .step-grid li { min-height: 0; }
  .step-icon { margin-top: 38px; }
  .choice,
  .privacy-band { grid-template-columns: 1fr; }
  .mode-stack { max-width: 620px; }
  .mode-card.featured { transform: none; }
}

@media (max-width: 660px) {
  body { font-size: 16px; }
  .site-header { align-items: flex-start; flex-direction: column; gap: 18px; }
  .site-header nav { width: 100%; justify-content: space-between; }
  .hero { padding-top: 68px; }
  h1 { font-size: clamp(3.25rem, 16vw, 5rem); }
  .section-heading { grid-template-columns: 1fr; gap: 18px; }
  .app-preview { padding: 8px; border-radius: 35px; }
  .preview-screen { border-radius: 28px; }
  .preview-header { padding: 25px 21px 0; }
  .time-metric { margin: 27px 21px 22px; }
  .primary-grid { padding-right: 21px; padding-left: 21px; }
  .primary-grid .metric strong { font-size: 1.4rem; }
  .metric-grid { padding-right: 13px; padding-left: 13px; }
  .preview-controls { padding-right: 13px; padding-left: 13px; }
  .trust-list { display: grid; gap: 8px; }
  .document { padding-top: 68px; }
  .policy-content { margin-top: 58px; }
  footer { flex-direction: column; gap: 26px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition-duration: .01ms !important; animation-duration: .01ms !important; }
}

@media print {
  :root { color-scheme: light; }
  body { background: #fff; color: #111; }
  .site-header, footer { display: none; }
  .document { max-width: none; padding: 0; }
  .policy-content { margin-top: 40px; }
  .policy-content p, .document-meta, .lede { color: #333; }
  .policy-content h2 { border-color: #ccc; }
}