:root {
  --carbon: #080a0e;
  --carbon-soft: #101419;
  --white: #f8f4ec;
  --muted: #a6a8a3;
  --coral: #ff8066;
  --sage: #96d7b3;
  --line-dark: rgba(248, 244, 236, .18);
  --line-light: rgba(8, 10, 14, .2);
  --serif: Georgia, "Times New Roman", serif;
  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
  --max: 1240px;
  --gutter: clamp(1.25rem, 4vw, 4rem);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--carbon); color: var(--white); font-family: var(--sans); font-size: 1rem; line-height: 1.55; }
body, button, a { -webkit-font-smoothing: antialiased; }
img { display: block; max-width: 100%; }
a { color: inherit; text-decoration-thickness: .08em; text-underline-offset: .18em; }
a:hover { color: var(--coral); }
:focus-visible { outline: 3px solid var(--coral); outline-offset: 4px; }
.content-width { width: min(100% - (var(--gutter) * 2), var(--max)); margin-inline: auto; }
.skip-link { position: fixed; z-index: 20; top: .75rem; left: .75rem; padding: .7rem 1rem; background: var(--coral); color: var(--carbon); font-weight: 700; transform: translateY(-150%); transition: transform .2s ease; }
.skip-link:focus { transform: translateY(0); }

.site-header { position: absolute; z-index: 5; top: 0; left: 0; width: 100%; display: flex; align-items: center; justify-content: space-between; gap: 2rem; padding: 1.35rem var(--gutter); color: var(--white); }
.brand { display: inline-flex; align-items: center; gap: .7rem; color: var(--white); font-size: .88rem; font-weight: 800; letter-spacing: .13em; text-decoration: none; }
.brand img { width: 2.5rem; height: 2.5rem; border-radius: 22%; }
.site-nav { display: flex; gap: clamp(1rem, 3vw, 2.8rem); margin-left: auto; margin-right: clamp(1rem, 3vw, 2rem); font-size: .78rem; letter-spacing: .04em; }
.site-nav a, .header-status { text-decoration: none; }
.header-status { border-bottom: 1px solid var(--coral); padding-bottom: .15rem; font-size: .78rem; }
.header-status span, .button span { display: inline-block; margin-left: .45rem; transition: transform .2s ease; }
.header-status:hover span, .button:hover span { transform: translate(2px, -2px); }

.hero, .final-cta { position: relative; min-height: max(46rem, 100svh); display: flex; align-items: flex-end; overflow: hidden; }
.hero-media, .final-cta-media { position: absolute; inset: -3%; background: center 42% / cover no-repeat url("/assets/images/gym-hero.jpg"); transform: scale(1.03); }
.hero-media { background-position: center 38%; }
.hero-shade, .final-cta-shade { position: absolute; inset: 0; background: linear-gradient(90deg, rgba(4, 5, 7, .88) 0%, rgba(4, 5, 7, .55) 43%, rgba(4, 5, 7, .16) 78%), linear-gradient(0deg, rgba(4, 5, 7, .9) 0%, rgba(4, 5, 7, .06) 52%); }
.hero-inner { position: relative; z-index: 1; padding-top: 8rem; padding-bottom: clamp(4rem, 9vh, 6.5rem); }
.eyebrow { display: flex; align-items: center; gap: .65rem; margin: 0 0 1.6rem; color: var(--sage); font-size: .68rem; font-weight: 700; letter-spacing: .18em; line-height: 1.3; text-transform: uppercase; }
.eyebrow-dark { color: #284f3a; }
.eyebrow-mark { width: .45rem; height: .45rem; flex: 0 0 auto; border-radius: 50%; background: currentColor; }
h1, h2, h3, p { margin-top: 0; }
h1, h2 { font-family: var(--serif); font-weight: 700; letter-spacing: -.045em; line-height: .98; }
h1 { max-width: 920px; margin-bottom: 1.5rem; font-size: clamp(3.6rem, 7.1vw, 6.6rem); }
h2 { margin-bottom: 1.35rem; font-size: clamp(3rem, 6vw, 6.6rem); }
h1 em, h2 em { color: var(--coral); font-style: italic; font-weight: 400; }
.hero-copy { max-width: 32rem; margin-bottom: 2.1rem; color: rgba(248, 244, 236, .86); font-size: clamp(1.05rem, 1.5vw, 1.28rem); line-height: 1.45; }
.hero-copy strong { display: block; margin-bottom: .2rem; color: var(--coral); font-family: var(--serif); font-size: clamp(1.2rem, 1.8vw, 1.5rem); line-height: 1.2; }
.hero-actions { display: flex; align-items: center; flex-wrap: wrap; gap: 1.6rem; }
.button { display: inline-flex; min-height: 3.2rem; align-items: center; justify-content: center; padding: .8rem 1.2rem; color: var(--carbon); font-size: .82rem; font-weight: 800; text-decoration: none; transition: background-color .2s ease, color .2s ease, transform .2s ease; }
.button:hover { color: var(--carbon); transform: translateY(-2px); }
.button-coral { background: var(--coral); }
.button-coral:hover { background: #ff9c87; }
.availability { display: inline-flex; align-items: center; gap: .55rem; color: rgba(248, 244, 236, .75); font-size: .78rem; }
.availability-dot { width: .48rem; height: .48rem; border: 1px solid var(--sage); border-radius: 50%; background: var(--sage); box-shadow: 0 0 0 .25rem rgba(150, 215, 179, .12); }
.hero-scroll { position: absolute; z-index: 1; right: var(--gutter); bottom: 2rem; display: flex; align-items: center; gap: .8rem; margin: 0; color: rgba(248, 244, 236, .7); font-size: .64rem; letter-spacing: .15em; text-transform: uppercase; writing-mode: vertical-rl; }
.hero-scroll span { width: 1px; height: 3.3rem; background: var(--coral); }

.section-dark { background: var(--carbon); }
.loop-section { padding: clamp(6rem, 13vw, 12rem) 0 clamp(5rem, 10vw, 9rem); }
.split-intro { display: grid; grid-template-columns: minmax(13rem, .75fr) 1.25fr; gap: 2rem; padding-bottom: clamp(4rem, 8vw, 7rem); }
.split-intro h2 { max-width: 35rem; }
.intro-copy { max-width: 25rem; color: var(--muted); font-size: 1.05rem; }
.steps { list-style: none; margin: 0; padding: 0; border-top: 1px solid var(--line-dark); }
.step { display: grid; grid-template-columns: minmax(8rem, .55fr) 1fr minmax(10rem, .6fr); gap: 2rem; padding: 2rem 0; border-bottom: 1px solid var(--line-dark); }
.step-number { color: var(--coral); font-size: .77rem; letter-spacing: .14em; }
.step-number span { display: inline-block; width: 3rem; height: 1px; margin: 0 0 .25rem .7rem; background: currentColor; }
.step-body h3 { margin-bottom: .45rem; font-size: clamp(1.3rem, 2vw, 1.65rem); font-weight: 700; letter-spacing: -.02em; }
.step-body p { max-width: 28rem; margin-bottom: 0; color: var(--muted); }
.step-note { align-self: center; color: rgba(248, 244, 236, .46); font-family: var(--serif); font-size: 1.1rem; font-style: italic; line-height: 1.15; }
.step-note-sage { color: var(--sage); }
.fine-print { margin: 2.4rem 0 0; color: rgba(248, 244, 236, .58); font-size: .77rem; }
.fine-print span { margin-right: .55rem; color: var(--coral); }

.section-light { background: var(--white); color: var(--carbon); }
.motivation { padding: clamp(6rem, 13vw, 12rem) 0; }
.motivation-grid { display: grid; grid-template-columns: .9fr 1.1fr; align-items: center; gap: clamp(3rem, 10vw, 9rem); }
.motivation-copy h2 { max-width: 35rem; }
.motivation-copy h2 em { color: #a84634; }
.motivation-copy > p:not(.eyebrow) { max-width: 29rem; margin-bottom: 2rem; color: #4b4c4c; font-size: 1.06rem; }
.text-link { display: inline-flex; align-items: center; gap: .6rem; font-size: .78rem; font-weight: 700; text-decoration: none; }
.text-link span, .research-links span, .control-links span { transition: transform .2s ease; }
.text-link:hover span, .research-links a:hover span, .control-links a:hover span { transform: translate(2px, -2px); }
.text-link-dark { color: var(--carbon); border-bottom: 1px solid rgba(8, 10, 14, .35); padding-bottom: .3rem; }
.editorial-image { margin: 0; }
.editorial-image img { width: 100%; aspect-ratio: 4 / 3; object-fit: cover; }
.editorial-image figcaption { display: flex; justify-content: space-between; gap: 1rem; padding-top: .8rem; color: #666762; font-size: .66rem; letter-spacing: .1em; text-transform: uppercase; }
.editorial-image figcaption span:first-child { color: #a84634; }

.section-sage { background: var(--sage); color: var(--carbon); }
.research-section { padding: clamp(6rem, 13vw, 11rem) 0; }
.research-grid { display: grid; grid-template-columns: .9fr 1.1fr; gap: clamp(3rem, 10vw, 9rem); }
.research-grid h2 em { color: #a84634; }
.research-detail { padding-top: 2.5rem; }
.research-claim { max-width: 39rem; margin-bottom: 1.35rem; font-family: var(--serif); font-size: clamp(1.75rem, 3vw, 2.8rem); letter-spacing: -.03em; line-height: 1.08; }
.research-support { max-width: 31rem; margin-bottom: 3.5rem; color: rgba(8, 10, 14, .68); }
.research-links { display: grid; max-width: 36rem; border-top: 1px solid rgba(8, 10, 14, .35); }
.research-links p { margin: 1rem 0 .3rem; color: rgba(8, 10, 14, .57); font-size: .68rem; font-weight: 700; letter-spacing: .14em; text-transform: uppercase; }
.research-links a { display: flex; justify-content: space-between; padding: .7rem 0; border-bottom: 1px solid rgba(8, 10, 14, .22); color: var(--carbon); font-size: .82rem; text-decoration: none; }

.control-section { padding: clamp(6rem, 13vw, 11rem) 0 3rem; }
.control-grid { display: grid; grid-template-columns: .9fr 1.1fr; gap: clamp(3rem, 10vw, 9rem); }
.control-heading h2 { max-width: 31rem; }
.control-list { border-top: 1px solid var(--line-dark); }
.control-item { display: grid; grid-template-columns: 2.5rem 1fr; gap: .7rem; padding: 1.5rem 0; border-bottom: 1px solid var(--line-dark); }
.control-icon { color: var(--coral); font-size: 1.6rem; line-height: 1; }
.control-item h3 { margin-bottom: .3rem; font-size: 1.08rem; }
.control-item p { max-width: 29rem; margin-bottom: 0; color: var(--muted); font-size: .88rem; }
.control-links { display: flex; flex-wrap: wrap; gap: 1.8rem; margin-top: 5rem; padding-top: 1rem; border-top: 1px solid var(--line-dark); }
.control-links a { color: var(--white); font-size: .76rem; font-weight: 700; text-decoration: none; }

.faq-section { padding: clamp(6rem, 13vw, 11rem) 0; }
.faq-grid { display: grid; grid-template-columns: .9fr 1.1fr; gap: clamp(3rem, 10vw, 9rem); }
.faq-grid h2 em { color: #a84634; }
.faq-list { border-top: 1px solid var(--line-light); }
details { border-bottom: 1px solid var(--line-light); }
summary { display: flex; align-items: center; justify-content: space-between; gap: 1.5rem; min-height: 4.7rem; cursor: pointer; list-style: none; font-size: .98rem; font-weight: 700; }
summary::-webkit-details-marker { display: none; }
summary span { position: relative; display: block; width: 1rem; height: 1rem; flex: 0 0 auto; }
summary span::before, summary span::after { position: absolute; top: 50%; left: 50%; width: .8rem; height: 1px; background: currentColor; content: ""; transform: translate(-50%, -50%); transition: transform .2s ease; }
summary span::after { transform: translate(-50%, -50%) rotate(90deg); }
details[open] summary span::after { transform: translate(-50%, -50%) rotate(0); }
details p { max-width: 40rem; margin: -.4rem 2rem 1.4rem 0; color: #5d5e5c; font-size: .9rem; }

.final-cta { min-height: 42rem; align-items: center; }
.final-cta-media { background-position: center 62%; }
.final-cta-shade { background: linear-gradient(90deg, rgba(4, 5, 7, .89), rgba(4, 5, 7, .34)), linear-gradient(0deg, rgba(4, 5, 7, .7), rgba(4, 5, 7, .15)); }
.final-cta-inner { position: relative; z-index: 1; padding-top: 4rem; padding-bottom: 4rem; }
.final-cta h2 { max-width: 47rem; }
.final-cta-inner > p:not(.eyebrow) { max-width: 28rem; margin-bottom: 2rem; color: rgba(248, 244, 236, .78); }

.site-footer { background: var(--carbon); color: var(--white); padding: 2rem 0 1.25rem; }
.footer-top, .footer-bottom { display: flex; align-items: center; justify-content: space-between; gap: 1.5rem; }
.footer-top { padding-bottom: 2.2rem; }
.footer-top p { margin: 0; color: var(--muted); font-family: var(--serif); font-size: 1rem; font-style: italic; }
.footer-contact { color: var(--sage); font-size: .78rem; }
.footer-bottom { padding-top: 1.15rem; border-top: 1px solid var(--line-dark); color: var(--muted); font-size: .7rem; }
.footer-bottom div { display: flex; flex-wrap: wrap; gap: 1.5rem; }
.footer-bottom a { color: var(--muted); text-decoration: none; }
.footer-bottom a:hover { color: var(--white); }

@media (min-width: 761px) {
  .final-cta h2 { max-width: 58rem; font-size: clamp(3.6rem, 5.2vw, 6rem); }
}

.js [data-reveal] { opacity: 0; transform: translateY(1.5rem); transition: opacity .7s ease, transform .7s cubic-bezier(.2,.7,.2,1); }
.js [data-reveal].is-visible { opacity: 1; transform: none; }
.js .hero-copy[data-reveal] { transition-delay: .08s; }
.js .hero-actions[data-reveal] { transition-delay: .16s; }
.js .step:nth-child(2) { transition-delay: .08s; }
.js .step:nth-child(3) { transition-delay: .16s; }

@media (max-width: 760px) {
  .site-header { flex-wrap: wrap; gap: .9rem 1.25rem; padding-top: 1rem; }
  .site-nav { order: 3; width: 100%; justify-content: space-between; margin: 0; font-size: .7rem; }
  .header-status { font-size: .7rem; }
  .brand img { width: 2.1rem; height: 2.1rem; }
  .hero { min-height: max(43rem, 100svh); }
  .hero-media { background-position: 57% 37%; }
  .hero-shade { background: linear-gradient(90deg, rgba(4, 5, 7, .88), rgba(4, 5, 7, .22)), linear-gradient(0deg, rgba(4, 5, 7, .94), rgba(4, 5, 7, .08) 62%); }
  .hero-inner { padding-top: 11rem; padding-bottom: 5rem; }
  h1 { font-size: clamp(3.35rem, 15vw, 5.5rem); }
  h2 { font-size: clamp(3rem, 14vw, 5rem); }
  .hero-scroll { display: none; }
  .split-intro, .motivation-grid, .research-grid, .control-grid, .faq-grid { grid-template-columns: minmax(0, 1fr); gap: 2.8rem; }
  .split-intro { padding-bottom: 3.5rem; }
  .step { grid-template-columns: 3.5rem 1fr; gap: .6rem 1rem; padding: 1.6rem 0; }
  .step-number span { display: none; }
  .step-note { grid-column: 2; align-self: start; font-size: .95rem; }
  .motivation-copy { order: 1; }
  .editorial-image { order: 2; }
  .research-detail { padding-top: 0; }
  .control-links { margin-top: 3.5rem; }
  .faq-list { margin-top: -.5rem; }
  .final-cta { min-height: 38rem; }
  .final-cta-media { background-position: 56% center; }
  .footer-top, .footer-bottom { align-items: flex-start; flex-direction: column; }
  .footer-top { gap: 1rem; }
  .footer-bottom div { gap: 1rem 1.4rem; }
}

@media (max-width: 340px) {
  h2 { font-size: 2.65rem; }
}

@media (max-width: 760px) and (max-height: 700px) {
  .hero { min-height: 100svh; }
  .hero-inner { padding-top: 7rem; padding-bottom: 1.25rem; }
  .hero .eyebrow { margin-bottom: .85rem; font-size: .58rem; }
  .hero h1 { margin-bottom: .8rem; font-size: clamp(2.6rem, 13.5vw, 3.3rem); line-height: .91; }
  .hero-copy { margin-bottom: 1rem; font-size: .92rem; line-height: 1.35; }
  .hero-copy strong { margin-bottom: .1rem; font-size: 1.05rem; }
  .hero-actions { gap: .65rem; }
  .hero .button { min-height: 2.75rem; padding: .65rem 1rem; }
  .availability { font-size: .68rem; }
}

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