:root {
  --black: #050605;
  --panel: #111311;
  --panel-2: #191b19;
  --white: #f7f7f2;
  --muted: #9b9f98;
  --acid: #d5ff19;
  --line: rgba(247, 247, 242, .15);
  --max: 1180px;
}

* { box-sizing: border-box; }
html { scroll-behavior: auto; }
body {
  margin: 0;
  background: var(--black);
  color: var(--white);
  font-family: Arial, Helvetica, ui-sans-serif, sans-serif;
  font-size: 16px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; }
img { display: block; max-width: 100%; }
.shell { width: min(calc(100% - 40px), var(--max)); margin-inline: auto; }
.skip-link { position: fixed; left: 12px; top: -60px; z-index: 100; padding: 10px 16px; background: var(--acid); color: var(--black); font-weight: 800; }
.skip-link:focus { top: 12px; }

.site-header { position: sticky; top: 0; z-index: 20; background: rgba(5, 6, 5, .96); border-bottom: 1px solid var(--line); }
.nav { min-height: 72px; display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.brand { display: inline-flex; align-items: center; gap: 12px; text-decoration: none; font-size: 17px; font-weight: 900; letter-spacing: .18em; }
.brand-mark { width: 38px; height: 38px; border-radius: 9px; }
.nav-links { display: flex; align-items: center; gap: 26px; }
.nav-links a { color: var(--muted); font-size: 13px; font-weight: 700; text-decoration: none; }
.nav-links a:hover, .nav-links a:focus-visible { color: var(--white); }
.nav-cta { padding: 9px 14px; border: 1px solid var(--white); color: var(--white) !important; }
.menu-button { display: none; border: 0; background: transparent; color: var(--white); font: inherit; font-weight: 800; }

.eyebrow { margin: 0 0 16px; color: var(--acid); font-size: 11px; font-weight: 900; letter-spacing: .19em; text-transform: uppercase; }
h1, h2, h3 { margin: 0; line-height: .98; text-transform: uppercase; }
h1 { font-size: clamp(54px, 8.6vw, 124px); letter-spacing: -.07em; }
h2 { font-size: clamp(38px, 5.5vw, 72px); letter-spacing: -.06em; }
h3 { font-size: 22px; letter-spacing: -.035em; }
p { margin: 0; }

.hero { display: grid; grid-template-columns: minmax(0, 1.35fr) minmax(340px, .65fr); gap: 74px; align-items: center; min-height: 760px; padding: 92px 0; }
.hero h1 span { color: var(--acid); }
.hero-copy > p:not(.eyebrow) { max-width: 650px; margin-top: 30px; color: #c2c5bf; font-size: clamp(18px, 2vw, 23px); }
.hero-actions { margin-top: 34px; display: flex; align-items: center; gap: 18px; flex-wrap: wrap; }
.store-button { display: inline-flex; align-items: center; gap: 12px; min-height: 58px; padding: 0 20px; background: var(--white); color: var(--black); font-weight: 800; text-decoration: none; }
.store-button small { display: block; font-size: 9px; line-height: 1.1; letter-spacing: .11em; text-transform: uppercase; }
.store-button strong { display: block; font-size: 17px; line-height: 1.2; }
.no-account { color: var(--muted); font-size: 12px; }

.hero-product { border: 1px solid var(--line); background: var(--panel); }
.product-head { display: flex; align-items: center; justify-content: space-between; padding: 18px; border-bottom: 1px solid var(--line); }
.product-head span { font-size: 10px; font-weight: 900; letter-spacing: .16em; text-transform: uppercase; }
.product-icon { width: 118px; height: 118px; margin: 34px auto 26px; border-radius: 28px; }
.rotation-pair { padding: 20px; border-top: 1px solid var(--line); }
.rotation-pair:first-of-type { border-top: 0; }
.pair-line { display: flex; align-items: baseline; justify-content: space-between; gap: 20px; }
.pair-line strong { font-size: 17px; }
.pair-line span { color: var(--muted); font-size: 11px; }
.wear-track { height: 5px; margin-top: 12px; background: #292c29; }
.wear-fill { height: 100%; background: var(--acid); }
.recommendation { display: flex; justify-content: space-between; gap: 14px; padding: 20px; background: var(--acid); color: var(--black); }
.recommendation b { text-transform: uppercase; }
.recommendation span { font-size: 12px; font-weight: 700; text-align: right; }

.section-intro { display: grid; grid-template-columns: .72fr 1.28fr; gap: 80px; padding: 120px 0 70px; border-top: 1px solid var(--line); }
.section-intro p:last-child { color: #b6bab3; font-size: clamp(21px, 3vw, 38px); line-height: 1.25; letter-spacing: -.035em; }
.section-intro strong { color: var(--white); }

.performance { padding-bottom: 120px; }
.performance-head { display: flex; align-items: end; justify-content: space-between; gap: 30px; margin-bottom: 30px; }
.performance-head p { max-width: 490px; color: var(--muted); }
.pair-grid { display: grid; grid-template-columns: repeat(3, 1fr); border: 1px solid var(--line); }
.pair-card { min-width: 0; background: var(--panel); border-right: 1px solid var(--line); }
.pair-card:last-child { border-right: 0; }
.pair-card-top { min-height: 180px; padding: 24px; display: flex; flex-direction: column; justify-content: space-between; background: var(--panel-2); }
.pair-card-top .type { color: var(--acid); font-size: 10px; font-weight: 900; letter-spacing: .15em; text-transform: uppercase; }
.pair-card-top h3 { max-width: 250px; font-size: 27px; }
.pair-card-top p { color: var(--muted); font-size: 12px; }
.pair-metrics { display: grid; grid-template-columns: 1fr 1fr; }
.pair-metric { padding: 20px; border-top: 1px solid var(--line); border-right: 1px solid var(--line); }
.pair-metric:nth-child(even) { border-right: 0; }
.pair-metric b { display: block; font-size: 25px; letter-spacing: -.04em; }
.pair-metric span { color: var(--muted); font-size: 9px; font-weight: 800; letter-spacing: .11em; text-transform: uppercase; }
.pair-verdict { padding: 18px 20px; border-top: 1px solid var(--line); color: var(--acid); font-size: 11px; font-weight: 900; letter-spacing: .12em; text-transform: uppercase; }

.feature-section { padding: 110px 0; background: var(--white); color: var(--black); }
.feature-heading { display: grid; grid-template-columns: 1fr 1fr; gap: 70px; align-items: end; margin-bottom: 54px; }
.feature-heading p { color: #5d615b; font-size: 18px; }
.feature-grid { display: grid; grid-template-columns: repeat(2, 1fr); border-top: 2px solid var(--black); }
.feature { display: grid; grid-template-columns: 46px 1fr; gap: 20px; min-height: 230px; padding: 34px 28px 34px 0; border-bottom: 1px solid rgba(5,6,5,.25); }
.feature:nth-child(odd) { border-right: 1px solid rgba(5,6,5,.25); }
.feature:nth-child(even) { padding-left: 28px; }
.feature-number { font-size: 11px; font-weight: 900; }
.feature h3 { margin-bottom: 14px; }
.feature p { color: #5d615b; }

.workflow { padding: 120px 0; }
.workflow-grid { display: grid; grid-template-columns: repeat(3, 1fr); margin-top: 48px; border-top: 1px solid var(--line); }
.step { padding: 34px 30px 34px 0; border-right: 1px solid var(--line); }
.step + .step { padding-left: 30px; }
.step:last-child { border-right: 0; }
.step span { color: var(--acid); font-size: 12px; font-weight: 900; }
.step h3 { margin: 30px 0 16px; }
.step p { color: var(--muted); }

.fitness { padding: 0 0 120px; }
.fitness-panel { display: grid; grid-template-columns: 1fr 1fr; background: var(--acid); color: var(--black); }
.fitness-copy { padding: clamp(34px, 6vw, 72px); }
.fitness-copy p:not(.eyebrow) { margin-top: 24px; max-width: 480px; color: #33372d; font-size: 18px; }
.fitness-copy .eyebrow { color: var(--black); }
.hour-list { padding: 28px; background: #101210; color: var(--white); }
.hour { display: grid; grid-template-columns: 54px 1fr auto; gap: 16px; align-items: center; padding: 18px 0; border-bottom: 1px solid var(--line); }
.hour:last-child { border-bottom: 0; }
.hour time { color: var(--acid); font-size: 12px; font-weight: 900; }
.hour b { font-size: 14px; }
.hour span { color: var(--muted); font-size: 12px; text-align: right; }

.privacy-pitch { padding: 100px 0; background: var(--panel); }
.privacy-grid { display: grid; grid-template-columns: 1.1fr .9fr; gap: 70px; align-items: center; }
.privacy-copy { color: var(--muted); font-size: 18px; }
.privacy-list { margin-top: 25px; display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; background: var(--line); }
.privacy-list div { padding: 18px; background: var(--panel); font-size: 12px; font-weight: 800; text-transform: uppercase; }

.final-cta { padding: 120px 0; text-align: center; }
.final-cta h2 { max-width: 900px; margin: 0 auto 34px; }
.final-cta .store-button { margin-inline: auto; }

.site-footer { padding: 34px 0 48px; border-top: 1px solid var(--line); color: var(--muted); }
.footer-grid { display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.footer-links { display: flex; flex-wrap: wrap; gap: 22px; }
.footer-links a { font-size: 12px; font-weight: 700; text-decoration: none; }
.footer-links a:hover { color: var(--white); }

.legal-hero { padding: 84px 0 48px; border-bottom: 1px solid var(--line); }
.legal-hero h1 { max-width: 900px; font-size: clamp(48px, 7vw, 86px); }
.legal-meta { margin-top: 24px; color: var(--muted); font-size: 13px; }
.legal-layout { display: grid; grid-template-columns: 220px minmax(0, 720px); gap: 90px; padding: 70px 0 110px; }
.legal-nav { position: sticky; top: 104px; align-self: start; display: grid; gap: 8px; }
.legal-nav a { color: var(--muted); font-size: 13px; text-decoration: none; }
.legal-nav a:hover { color: var(--acid); }
.legal-content { display: grid; gap: 42px; }
.legal-content section { scroll-margin-top: 110px; }
.legal-content h2 { margin-bottom: 14px; font-size: 26px; line-height: 1.1; letter-spacing: -.03em; }
.legal-content p, .legal-content li { color: #b5b8b1; }
.legal-content p + p { margin-top: 12px; }
.legal-content ul { margin: 14px 0 0; padding-left: 20px; }
.legal-content li + li { margin-top: 8px; }
.legal-content strong { color: var(--white); }
.callout { padding: 22px; border-left: 4px solid var(--acid); background: var(--panel); }
.support-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px; }
.support-card { padding: 26px; background: var(--panel); border: 1px solid var(--line); }
.support-card h3 { margin-bottom: 10px; font-size: 21px; }
.support-card p { color: var(--muted); }
.text-link { color: var(--acid); font-weight: 800; text-underline-offset: 4px; }

@media (max-width: 850px) {
  .shell { width: min(calc(100% - 28px), var(--max)); }
  .menu-button { display: block; }
  .nav-links { position: absolute; left: 14px; right: 14px; top: 68px; display: none; padding: 20px; background: var(--panel); border: 1px solid var(--line); flex-direction: column; align-items: stretch; gap: 16px; }
  .nav-links.is-open { display: flex; }
  .nav-cta { text-align: center; }
  .hero { grid-template-columns: 1fr; min-height: auto; padding: 72px 0; }
  .hero-product { max-width: 520px; }
  .section-intro, .feature-heading, .fitness-panel, .privacy-grid, .legal-layout { grid-template-columns: 1fr; gap: 36px; }
  .pair-grid { grid-template-columns: 1fr; }
  .pair-card { border-right: 0; border-bottom: 1px solid var(--line); }
  .pair-card:last-child { border-bottom: 0; }
  .legal-nav { display: none; }
}

@media (max-width: 620px) {
  h1 { font-size: 54px; }
  h2 { font-size: 40px; }
  .hero { gap: 50px; }
  .product-icon { width: 96px; height: 96px; border-radius: 23px; }
  .performance-head, .footer-grid { align-items: flex-start; flex-direction: column; }
  .feature-grid, .workflow-grid { grid-template-columns: 1fr; }
  .feature:nth-child(n) { padding: 28px 0; border-right: 0; }
  .step, .step + .step { padding: 28px 0; border-right: 0; border-bottom: 1px solid var(--line); }
  .step:last-child { border-bottom: 0; }
  .privacy-list { grid-template-columns: 1fr; }
  .support-grid { grid-template-columns: 1fr; }
}