:root {
  color-scheme: light;
  --bg: #f6faf9;
  --surface: #ffffff;
  --ink: #102027;
  --muted: #52636d;
  --line: rgba(16, 32, 39, 0.12);
  --teal: #0f766e;
  --aqua: #2dd4bf;
  --coral: #ff6b4a;
  --gold: #f59e0b;
  --shadow: 0 28px 90px rgba(15, 118, 110, 0.18);
}
* { box-sizing: border-box; }
html { overflow-x: hidden; scroll-behavior: smooth; }
body {
  background: var(--bg);
  color: var(--ink);
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Display", "Segoe UI", sans-serif;
  letter-spacing: 0;
  margin: 0;
  min-width: 320px;
  overflow-x: hidden;
}
a { color: inherit; text-decoration: none; }
.site-header {
  backdrop-filter: saturate(180%) blur(18px);
  background: rgba(246, 250, 249, 0.84);
  border-bottom: 1px solid var(--line);
  position: sticky;
  top: 0;
  z-index: 50;
}
.site-header:empty { min-height: 52px; }
.nav {
  align-items: center;
  display: flex;
  gap: 18px;
  justify-content: space-between;
  margin: 0 auto;
  max-width: 1120px;
  min-height: 52px;
  padding: 0 22px;
  width: 100%;
}
.brand { align-items: center; display: inline-flex; font-size: 14px; font-weight: 800; gap: 8px; line-height: 1; white-space: nowrap; }
.brand-icon { border-radius: 7px; display: block; height: 24px; width: 24px; }
.nav-links { align-items: center; display: flex; flex: 1 1 auto; gap: clamp(12px, 2vw, 22px); justify-content: flex-end; min-width: 0; }
.nav-links a { color: #23414a; font-size: 12px; font-weight: 600; line-height: 1; opacity: 0.86; white-space: nowrap; }
.nav-links a:hover, .nav-links a[aria-current="page"] { color: var(--teal); opacity: 1; }
.nav-links .pill { background: var(--ink); border-radius: 999px; color: #fff; padding: 8px 13px; }
.nav-toggle { appearance: none; background: transparent; border: 0; color: var(--ink); cursor: pointer; display: none; height: 36px; position: relative; width: 36px; }
.nav-toggle-line { background: currentColor; border-radius: 999px; height: 1.5px; left: 11px; position: absolute; transition: transform 180ms ease; width: 14px; }
.nav-toggle-line:first-child { transform: translateY(-4px); }
.nav-toggle-line:last-child { transform: translateY(4px); }
.site-header.nav-open .nav-toggle-line:first-child { transform: rotate(45deg); }
.site-header.nav-open .nav-toggle-line:last-child { transform: rotate(-45deg); }
main { overflow: hidden; }
.hero {
  background-image: linear-gradient(90deg, rgba(9, 22, 28, 0.76), rgba(9, 22, 28, 0.36) 46%, rgba(9, 22, 28, 0.05)), url("assets/hero-workout.png");
  background-position: center;
  background-size: cover;
  color: #fff;
  min-height: min(680px, calc(100svh - 96px));
  padding: 0 22px;
  position: relative;
}
.hero-inner { align-items: center; display: flex; margin: 0 auto; max-width: 1120px; min-height: inherit; padding: 72px 0 86px; }
.hero-copy { max-width: 620px; min-width: 0; width: min(100%, 620px); }
.eyebrow { color: var(--teal); font-size: 12px; font-weight: 800; letter-spacing: .08em; margin: 0 0 14px; text-transform: uppercase; }
.hero .eyebrow { color: #a7f3d0; }
h1, h2, h3, p { margin-top: 0; }
h1 { font-size: 96px; letter-spacing: 0; line-height: .92; margin-bottom: 22px; max-width: 100%; overflow-wrap: break-word; }
.lead { color: inherit; font-size: 24px; line-height: 1.42; max-width: 680px; opacity: .92; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 34px; }
.button { align-items: center; border-radius: 8px; display: inline-flex; font-size: 15px; font-weight: 800; min-height: 44px; padding: 12px 18px; }
.button.primary { background: #fff; color: var(--ink); }
.button.secondary { border: 1px solid rgba(255,255,255,.72); color: #fff; }
.section { margin: 0 auto; max-width: 1120px; padding: 92px 22px; }
.section.compact { max-width: 880px; }
.section-title { font-size: 60px; line-height: 1; margin-bottom: 18px; max-width: 100%; overflow-wrap: break-word; }
.section-copy { color: var(--muted); font-size: 18px; line-height: 1.55; max-width: 760px; }
.feature-grid, .screen-grid, .facts-grid { display: grid; gap: 16px; grid-template-columns: repeat(3, 1fr); margin-top: 34px; }
.feature, .fact, .document, .screen-figure {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: 0 18px 60px rgba(16,32,39,.08);
}
.feature, .fact { padding: 24px; }
.feature-mark { align-items: center; background: #e7fbf7; border-radius: 8px; color: var(--teal); display: inline-flex; font-weight: 900; height: 34px; justify-content: center; margin-bottom: 18px; width: 34px; }
.feature h3, .fact h3 { font-size: 21px; margin-bottom: 10px; }
.feature p, .fact p, .document p, .document li { color: var(--muted); font-size: 16px; line-height: 1.55; }
.screen-figure { margin: 0; overflow: hidden; padding: 10px; }
.screen-shot { display: block; height: auto; width: 100%; }
.band { background: #102027; color: #fff; margin: 0; max-width: none; padding: 86px 22px; }
.band-inner { margin: 0 auto; max-width: 1120px; }
.chip-list { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 24px; }
.chip-list span { background: rgba(45, 212, 191, .14); border: 1px solid rgba(45, 212, 191, .38); border-radius: 999px; color: #dff7ff; font-size: 14px; font-weight: 700; padding: 9px 12px; }
.document { padding: clamp(24px, 4vw, 42px); }
.document h2 { font-size: 24px; margin: 30px 0 10px; }
.document h2:first-child { margin-top: 0; }
.site-footer { align-items: center; border-top: 1px solid var(--line); color: var(--muted); display: flex; gap: 18px; justify-content: space-between; margin: 0 auto; max-width: 1120px; padding: 32px 22px; }
.footer-links { display: flex; flex-wrap: wrap; gap: 14px; justify-content: flex-end; }
.reveal { opacity: 0; transform: translateY(14px); transition: opacity 420ms ease, transform 420ms ease; }
.reveal.visible { opacity: 1; transform: translateY(0); }
.visually-hidden { clip: rect(0 0 0 0); clip-path: inset(50%); height: 1px; overflow: hidden; position: absolute; white-space: nowrap; width: 1px; }
@media (max-width: 1100px) {
  h1 { font-size: 78px; }
  .section-title { font-size: 46px; }
}
@media (max-width: 760px) {
  .nav-toggle { display: block; }
  .nav-links { background: rgba(246,250,249,.98); border-bottom: 1px solid var(--line); display: none; flex-direction: column; gap: 0; left: 0; padding: 8px 22px 18px; position: absolute; right: 0; top: 52px; }
  .site-header.nav-open .nav-links { display: flex; }
  .nav-links a { padding: 12px 0; width: 100%; }
  .nav-links .pill { text-align: center; width: 100%; }
  .hero {
    background-image: linear-gradient(rgba(9, 22, 28, 0.74), rgba(9, 22, 28, 0.74)), url("assets/hero-workout.png");
    min-height: min(700px, calc(100svh - 176px));
  }
  .hero-inner { display: block; padding: 54px 0 66px; }
  .hero-copy { max-width: 330px; width: 100%; }
  h1 { font-size: 48px; line-height: 1.02; overflow-wrap: break-word; }
  .lead { font-size: 18px; max-width: 320px; }
  .section-title { font-size: 30px; line-height: 1.08; max-width: 330px; }
  .feature-grid, .screen-grid, .facts-grid { grid-template-columns: 1fr; }
  .section { padding: 68px 18px; }
  .site-footer { align-items: flex-start; flex-direction: column; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; transition: none; }
}