:root {
  --ink: #121b1d;
  --muted: #5f7077;
  --line: #dbe6eb;
  --blue: #2f7ec1;
  --blue-dark: #1d5f99;
  --blue-soft: #eaf5fc;
  --blue-pale: #f5fafe;
  --grey-soft: #f4f7f8;
  --white: #ffffff;
  --shadow: 0 24px 70px rgba(35, 72, 91, 0.12);
  --radius: 24px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background: var(--white);
  font-family: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  -webkit-font-smoothing: antialiased;
}
img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button { font: inherit; }

.section-shell { width: min(1160px, calc(100% - 48px)); margin-inline: auto; }
.site-header {
  width: min(1240px, calc(100% - 40px));
  height: 76px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: relative;
  z-index: 10;
}
.brand { display: inline-flex; align-items: center; gap: 10px; font-size: 19px; font-weight: 750; letter-spacing: -0.02em; }
.brand-icon { width: 38px; height: 38px; border-radius: 10px; object-fit: cover; box-shadow: 0 4px 12px rgba(24, 50, 68, .12); }
.site-header nav { display: flex; gap: 32px; color: var(--muted); font-size: 14px; font-weight: 600; }
.site-header nav a:hover { color: var(--blue-dark); }

.button {
  min-height: 48px;
  padding: 0 24px;
  border: 1px solid var(--blue-dark);
  border-radius: 999px;
  background: var(--blue-dark);
  color: white;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 15px;
  font-weight: 700;
  transition: transform .2s ease, box-shadow .2s ease, background .2s ease;
}
.button:hover { transform: translateY(-2px); box-shadow: 0 12px 28px rgba(29, 95, 153, .2); background: #174f80; }
.button-small { min-height: 38px; padding: 0 18px; font-size: 13px; }
.hero {
  min-height: 690px;
  display: grid;
  grid-template-columns: .82fr 1.18fr;
  align-items: center;
  gap: 70px;
  padding-block: 54px 72px;
}
.eyebrow { margin: 0 0 18px; color: var(--blue-dark); font-size: 12px; font-weight: 800; letter-spacing: .12em; text-transform: uppercase; }
.hero .eyebrow { display: flex; align-items: center; gap: 9px; }
.hero .eyebrow span { width: 7px; height: 7px; background: #5aa7db; border-radius: 50%; box-shadow: 0 0 0 6px var(--blue-soft); }
h1, h2, h3, p { text-wrap: balance; }
h1 { margin: 0; font-size: clamp(54px, 5.6vw, 82px); line-height: .96; letter-spacing: -.06em; font-weight: 760; }
.hero-lede { max-width: 590px; margin: 30px 0; color: var(--muted); font-size: 19px; line-height: 1.65; }
.hero-actions { display: flex; align-items: center; gap: 24px; }
.hero-notes { list-style: none; padding: 0; margin: 34px 0 0; display: flex; flex-wrap: wrap; gap: 10px 22px; color: #66787e; font-size: 13px; }
.hero-notes li::before { content: "✓"; color: var(--blue); font-weight: 800; margin-right: 7px; }

.hero-visual { min-height: 570px; position: relative; }
.console-visual::before { content: ""; position: absolute; inset: 8% -3% 4% 7%; border-radius: 32px; background: linear-gradient(145deg, var(--blue-soft), #f7fafc); border: 1px solid #dbeaf3; }
.desktop-hero { position: absolute; width: 84%; height: 440px; right: 0; top: 50%; transform: translateY(-50%); z-index: 1; overflow: hidden; background: white; box-shadow: var(--shadow); }
.desktop-hero img { width: 100%; height: calc(100% - 48px); object-fit: cover; object-position: top center; }
.desktop-hero figcaption { height: 48px; padding: 0 18px; display: flex; align-items: center; gap: 9px; color: var(--muted); font-size: 12px; cursor: default; }
.companion-watch { position: absolute; width: 190px; height: 295px; left: 0; bottom: 18px; z-index: 3; overflow: hidden; background: white; box-shadow: 0 24px 60px rgba(25, 59, 76, .2); }
.companion-watch img { width: 100%; height: 100%; object-fit: cover; object-position: center; }
.media-card { margin: 0; border-radius: var(--radius); border: 1px solid rgba(184, 204, 214, .75); cursor: zoom-in; }
.console-label { position: absolute; z-index: 4; min-width: 145px; padding: 10px 13px; border: 1px solid var(--line); border-radius: 12px; background: rgba(255,255,255,.96); box-shadow: 0 12px 30px rgba(30, 62, 79, .12); }
.console-label small, .console-label strong { display: block; }
.console-label small { color: var(--muted); font-size: 9px; text-transform: uppercase; letter-spacing: .09em; }
.console-label strong { margin-top: 3px; font-size: 12px; }
.target-label { right: -12px; top: 10%; }
.watch-label { right: 8%; bottom: 5%; }
.watch-label strong { display: flex; align-items: center; gap: 7px; }
.status-dot { width: 10px; height: 10px; border-radius: 50%; background: #3ba36a; box-shadow: 0 0 0 5px #e6f5ec; }

.trust-strip { border-block: 1px solid var(--line); background: var(--blue-pale); min-height: 90px; display: flex; align-items: center; justify-content: center; gap: 48px; padding: 20px 32px; }
.trust-strip p { margin: 0; color: var(--muted); font-size: 13px; }
.trust-strip div { display: flex; gap: 38px; font-size: 14px; font-weight: 700; }

.section { padding-block: 120px; }
.section-heading { max-width: 660px; margin-bottom: 54px; }
.section-heading.centered { margin-inline: auto; text-align: center; }
h2 { margin: 0; font-size: clamp(38px, 4vw, 58px); line-height: 1.06; letter-spacing: -.045em; }
.section-heading > p:last-child, .feature-copy > p, .detail-card > div > p:last-child, .cta p { color: var(--muted); font-size: 17px; line-height: 1.65; }

.steps { position: relative; display: grid; grid-template-columns: repeat(3, 1fr); gap: 36px; }
.steps::before { content: ""; position: absolute; left: 12%; right: 12%; top: 14px; border-top: 1px dashed #b7d1df; }
.step-card { position: relative; padding: 0; background: var(--white); overflow: hidden; }
.step-number { color: var(--blue); font-size: 12px; font-weight: 800; letter-spacing: .1em; }
.step-card h3, .connection-card h3 { margin: 18px 0 9px; font-size: 23px; letter-spacing: -.03em; }
.step-card > p, .connection-card > p { color: var(--muted); line-height: 1.6; font-size: 14px; min-height: 68px; }
.image-button { display: block; width: 100%; padding: 0; border: 0; background: transparent; cursor: zoom-in; }
.image-button img { width: 100%; transition: transform .35s ease; }
.image-button:hover img { transform: scale(1.018); }
.desktop-shot { margin-top: 18px; height: 225px; overflow: hidden; border: 1px solid var(--line); border-radius: 14px; background: var(--grey-soft); }
.desktop-shot img { width: 100%; height: 100%; object-fit: cover; object-position: top left; }
.watch-shot { width: 185px; height: 225px; margin: 18px auto 0; overflow: hidden; border-radius: 18px 18px 0 0; }
.watch-shot img { width: 100%; height: 100%; object-fit: cover; object-position: top center; }

.feature-band { background: var(--blue-pale); border-block: 1px solid #dcecf5; padding-block: 115px; overflow: hidden; }
.split-feature { display: grid; grid-template-columns: .9fr 1.1fr; align-items: center; gap: 80px; }
.feature-copy > p { margin: 24px 0 34px; }
.feature-list { margin: 0; }
.feature-list div { display: grid; grid-template-columns: 150px 1fr; gap: 20px; padding: 18px 0; border-top: 1px solid #d3e3ec; }
.feature-list dt { color: var(--blue-dark); font-size: 12px; font-weight: 800; letter-spacing: .08em; text-transform: uppercase; }
.feature-list dd { margin: 0; color: var(--muted); font-size: 14px; }
.watch-pair { display: flex; align-items: center; justify-content: center; gap: 22px; }
.watch-frame { width: 265px; overflow: hidden; background: white; box-shadow: var(--shadow); }
.watch-frame-offset { transform: translateY(42px); }
.watch-frame img { width: 100%; height: 390px; object-fit: cover; object-position: center; }
.watch-frame figcaption { min-height: 88px; padding: 18px; color: var(--muted); font-size: 13px; line-height: 1.45; cursor: default; }
.watch-frame figcaption span { display: block; color: var(--ink); font-weight: 750; margin-bottom: 3px; }

.connection-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.connection-card { padding: 32px; border-radius: var(--radius); border: 1px solid var(--line); background: var(--grey-soft); overflow: hidden; }
.relay-card { background: var(--blue-pale); border-color: #d8eaf4; }
.connection-label { color: var(--blue-dark); text-transform: uppercase; letter-spacing: .09em; font-weight: 800; font-size: 12px; display: flex; align-items: center; gap: 9px; }
.bluetooth-icon, .relay-icon { width: 29px; height: 29px; border-radius: 9px; background: white; display: grid; place-items: center; border: 1px solid var(--line); font-size: 15px; }
.connection-card .desktop-shot { height: 320px; }
.relay-composition { position: relative; height: 320px; margin-top: 18px; }
.relay-composition > .image-button:first-child { height: 100%; overflow: hidden; border-radius: 14px; border: 1px solid var(--line); }
.relay-composition > .image-button:first-child img { height: 100%; object-fit: cover; object-position: top; }
.mini-watch { position: absolute; width: 132px; height: 190px; right: 14px; bottom: -1px; border-radius: 20px 20px 0 0; overflow: hidden; border: 5px solid white; box-shadow: 0 14px 30px rgba(24, 53, 68, .18); }
.mini-watch img { width: 100%; height: 100%; object-fit: cover; object-position: center; }

.detail-section { padding-bottom: 120px; }
.detail-card { border-radius: 30px; background: var(--ink); color: white; padding: 62px; display: grid; grid-template-columns: 1.2fr .8fr; gap: 70px; }
.detail-card .eyebrow { color: #8fc8ed; }
.detail-card > div > p:last-child { color: #aebdc2; }
.detail-points { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; align-content: center; }
.detail-points span { padding: 15px; border-radius: 12px; border: 1px solid #344449; background: #1a2528; font-size: 13px; color: #dce6e9; }
.detail-points span::before { content: "✓"; color: #79bde8; margin-right: 8px; }

.cta { padding-bottom: 120px; }
.cta-inner { padding: 58px; border-radius: 24px; display: grid; grid-template-columns: .8fr 1.2fr; align-items: center; gap: 54px; background: linear-gradient(145deg, #eef8fe, #f7fafc); border: 1px solid #d8eaf5; }
.cta h2 { font-size: clamp(38px, 4vw, 54px); }
.cta-copy > p:last-child { margin: 20px 0 0; }
.store-links { display: flex; justify-content: flex-start; gap: 12px; flex-wrap: wrap; }
.store-link {
  min-width: 255px;
  padding: 14px 18px;
  display: flex;
  align-items: center;
  gap: 13px;
  border-radius: 16px;
  border: 1px solid #cadce7;
  background: var(--white);
  color: var(--ink);
  text-align: left;
  box-shadow: 0 10px 28px rgba(35, 72, 91, .07);
}
.store-link.is-placeholder { cursor: default; }
.store-badge-link { flex-direction: column; justify-content: center; gap: 5px; padding-block: 9px; }
.store-badge-link img { width: 172px; height: auto; }
.store-badge-link span { color: #7a8b91; font-size: 10px; }
.cta .download-note { margin: 16px 0 0; color: #71838a; font-size: 12px; line-height: 1.5; }

.site-footer { border-top: 1px solid var(--line); padding-block: 30px 42px; display: grid; grid-template-columns: auto 1fr; gap: 8px 34px; align-items: center; color: var(--muted); font-size: 13px; }
.site-footer p { margin: 0; }
.fine-print { grid-column: 2; font-size: 11px; }

.lightbox { width: min(1050px, calc(100% - 30px)); max-height: calc(100vh - 30px); padding: 16px; border: 0; border-radius: 22px; background: white; box-shadow: 0 30px 100px rgba(13, 28, 34, .32); }
.lightbox::backdrop { background: rgba(18, 27, 29, .72); backdrop-filter: blur(5px); }
.lightbox img { max-height: calc(100vh - 105px); margin: auto; border-radius: 12px; object-fit: contain; }
.lightbox p { margin: 11px 44px 0 4px; color: var(--muted); font-size: 13px; }
.lightbox-close { position: absolute; right: 18px; top: 18px; width: 34px; height: 34px; border: 0; border-radius: 50%; background: rgba(18,27,29,.86); color: white; font-size: 23px; line-height: 1; cursor: pointer; }

.reveal { opacity: 0; transform: translateY(16px); transition: opacity .65s ease, transform .65s ease; }
.reveal.visible { opacity: 1; transform: none; }

@media (max-width: 900px) {
  .site-header nav { display: none; }
  .hero { grid-template-columns: 1fr; padding-top: 70px; text-align: center; }
  .hero-lede { margin-inline: auto; }
  .hero-actions, .hero-notes { justify-content: center; }
  .hero .eyebrow { justify-content: center; }
  .hero-visual { min-height: 540px; }
  .trust-strip { flex-direction: column; gap: 14px; }
  .trust-strip div { flex-wrap: wrap; justify-content: center; gap: 16px 28px; }
  .steps { grid-template-columns: 1fr; }
  .step-card { display: grid; grid-template-columns: 1fr 1.1fr; column-gap: 24px; }
  .step-card .step-number, .step-card h3, .step-card > p { grid-column: 1; }
  .step-card .image-button { grid-column: 2; grid-row: 1 / span 4; align-self: end; }
  .split-feature { grid-template-columns: 1fr; }
  .feature-copy { text-align: center; }
  .feature-list { text-align: left; }
  .connection-grid { grid-template-columns: 1fr; }
  .detail-card { grid-template-columns: 1fr; gap: 36px; }
  .cta-inner { grid-template-columns: 1fr; text-align: center; }
  .store-links { justify-content: center; }
  .cta .download-note { margin-inline: auto; }
}

@media (max-width: 620px) {
  .section-shell { width: min(100% - 30px, 1160px); }
  .site-header { width: calc(100% - 30px); }
  .site-header .button { display: none; }
  h1 { font-size: 54px; }
  .hero { gap: 35px; padding-top: 55px; }
  .hero-actions { flex-direction: column; }
  .hero-visual { min-height: 440px; }
  .desktop-hero { width: 94%; height: 330px; }
  .companion-watch { width: 135px; height: 215px; bottom: 0; }
  .target-label { right: -4px; top: 3%; }
  .watch-label { display: none; }
  .section { padding-block: 82px; }
  .step-card { display: block; }
  .step-card > p { min-height: auto; }
  .desktop-shot { height: 215px; }
  .feature-band { padding-block: 82px; }
  .watch-pair { gap: 10px; }
  .watch-frame { width: 50%; }
  .watch-frame img { height: 290px; }
  .watch-frame figcaption { min-height: 110px; padding: 13px; }
  .feature-list div { grid-template-columns: 1fr; gap: 6px; }
  .connection-card { padding: 22px; }
  .connection-card .desktop-shot, .relay-composition { height: 250px; }
  .detail-card { padding: 38px 24px; }
  .detail-points { grid-template-columns: 1fr; }
  .cta-inner { padding: 40px 22px; gap: 34px; }
  .store-link { width: 100%; min-width: 0; }
  .site-footer { grid-template-columns: 1fr; }
  .fine-print { grid-column: 1; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition-duration: .01ms !important; animation-duration: .01ms !important; }
  .reveal { opacity: 1; transform: none; }
}