:root {
  color-scheme: dark;
  --background: #000;
  --ink: #f7f7f7;
  --muted: #a6a6a6;
  --line: #353535;
  --readiness: #98ef88;
  --sleep: #159fe0;
  --activity: #58e8e8;
  --heart: #f46599;
  --stress: #ffb84a;
}

* { box-sizing: border-box; }

html { min-height: 100%; background: var(--background); }

body {
  min-height: 100vh;
  margin: 0;
  color: var(--ink);
  background: var(--background);
  font: 15px/1.55 ui-monospace, "SFMono-Regular", Menlo, Monaco,
    Consolas, "Liberation Mono", monospace;
}

a { color: var(--sleep); }

.shell {
  width: min(100% - 32px, 680px);
  margin: 0 auto;
  padding: 28px 0 24px;
}

.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-bottom: 18px;
  border-bottom: 1px solid var(--line);
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--ink);
  font-size: 15px;
  font-weight: 800;
  letter-spacing: .02em;
  text-decoration: none;
}

.mark {
  width: 24px;
  height: 24px;
  border: 3px solid var(--sleep);
  border-radius: 50%;
  box-shadow: inset 0 0 0 3px var(--background),
    inset 0 0 0 5px var(--readiness);
}

.platform,
.eyebrow,
.section-label {
  color: var(--muted);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: .04em;
}

.hero {
  padding: 52px 0 34px;
}

.eyebrow {
  margin: 0 0 12px;
  color: var(--readiness);
}

h1 {
  margin: 0;
  font-family: "Arial Black", "Helvetica Neue", Arial, sans-serif;
  font-size: clamp(38px, 10vw, 62px);
  line-height: .98;
  letter-spacing: -.045em;
}

h2 {
  margin: 4px 0 8px;
  font: 800 23px/1.2 -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

.lede {
  max-width: 570px;
  margin: 20px 0 0;
  color: var(--muted);
  font-size: 16px;
}

.metric-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 22px;
  margin-top: 30px;
  padding: 13px 0 12px;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: .03em;
}

.readiness { color: var(--readiness); }
.sleep { color: var(--sleep); }
.activity { color: var(--activity); }
.heart { color: var(--heart); }
.stress { color: var(--stress); }

.availability-panel {
  padding: 24px;
  border: 1px solid var(--line);
  background: #050505;
}

.availability-copy {
  max-width: 570px;
  margin: 0 0 20px;
  color: var(--muted);
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.button {
  min-height: 42px;
  padding: 10px 14px;
  border: 1px solid var(--line);
  border-radius: 0;
  font: 800 12px/20px ui-monospace, "SFMono-Regular", Menlo, Monaco,
    Consolas, "Liberation Mono", monospace;
  text-decoration: none;
}

.button-secondary {
  color: var(--ink);
  border-color: var(--sleep);
  background: transparent;
}

.button-secondary:hover { background: #082435; }

.button-disabled {
  color: #777;
  border-color: var(--line);
  background: #111;
  cursor: not-allowed;
}

a:focus-visible {
  outline: 2px solid var(--activity);
  outline-offset: 3px;
}

.privacy-note {
  display: grid;
  gap: 4px;
  margin-top: 20px;
  padding: 14px 16px;
  border-left: 3px solid var(--sleep);
  color: var(--muted);
  font-size: 12px;
}

.privacy-note strong {
  color: var(--sleep);
  letter-spacing: .08em;
}

footer {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 10px 24px;
  margin-top: 38px;
  padding-top: 18px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 12px;
}

footer nav { display: flex; gap: 18px; }

.legal h1 { margin-top: 46px; font-size: 42px; }
.legal h2 {
  margin-top: 34px;
  color: var(--readiness);
  font-family: inherit;
  font-size: 14px;
  letter-spacing: .01em;
}
.legal p, .legal li { color: var(--muted); }
.legal strong { color: var(--ink); }

@media (max-width: 380px) {
  .shell { width: min(100% - 22px, 680px); padding-top: 20px; }
  .platform { display: none; }
  .hero { padding: 40px 0 28px; }
  .availability-panel { padding: 18px; }
  .button { width: 100%; text-align: center; }
}