:root {
  color-scheme: light;
  --paper: #f6f4ee;
  --paper-soft: #fbfaf7;
  --ink: #0a0a0a;
  --muted: #696862;
  --line: rgba(10, 10, 10, 0.15);
  --orange: #ff7445;
  --orange-soft: #ffd6c7;
  --lime: #e8ff47;
  --blue-soft: #dceaff;
  --radius: 28px;
  --max: 1440px;
  --sans: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
  --serif: Iowan Old Style, Baskerville, "Times New Roman", serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; background: var(--paper); }
body { margin: 0; color: var(--ink); background: var(--paper); font-family: var(--sans); -webkit-font-smoothing: antialiased; }
a { color: inherit; text-decoration-thickness: 1px; text-underline-offset: 0.2em; }
img { display: block; max-width: 100%; height: auto; }
button { font: inherit; }
.skip-link { position: fixed; z-index: 100; left: 1rem; top: 1rem; padding: .8rem 1rem; background: var(--ink); color: #fff; transform: translateY(-180%); }
.skip-link:focus { transform: translateY(0); }
.shell { width: min(calc(100% - 48px), var(--max)); margin-inline: auto; }

.site-header { position: relative; z-index: 20; display: flex; align-items: center; justify-content: space-between; min-height: 104px; }
.brand { display: inline-flex; align-items: center; gap: 12px; font-family: var(--serif); font-size: 1.55rem; text-decoration: none; letter-spacing: -.03em; }
.brand-mark { position: relative; width: 30px; height: 30px; border-radius: 50%; background: var(--ink); overflow: hidden; }
.brand-mark::after { content: ""; position: absolute; width: 21px; height: 21px; border-radius: 50%; background: var(--paper); left: -5px; top: 4px; }
.nav { display: flex; align-items: center; gap: clamp(24px, 3vw, 48px); font-size: .9rem; }
.nav a { text-decoration: none; }
.nav a:hover, .nav a:focus-visible { text-decoration: underline; }
.button, .nav-cta { display: inline-flex; align-items: center; justify-content: center; gap: 18px; min-height: 48px; padding: 0 24px; border: 1px solid var(--ink); border-radius: 999px; background: var(--ink); color: #fff; text-decoration: none; transition: transform .2s ease, background .2s ease, color .2s ease; }
.button:hover, .button:focus-visible, .nav-cta:hover, .nav-cta:focus-visible { transform: translateY(-2px); }
.button-light { background: #fff; color: var(--ink); border-color: #fff; }
.text-link { display: inline-flex; gap: 10px; align-items: center; font-weight: 600; }
.menu-button { display: none; border: 0; background: none; padding: 10px; }
.menu-button span { display: block; width: 24px; height: 1px; background: var(--ink); margin: 5px 0; }

.eyebrow { display: flex; align-items: center; gap: 14px; margin: 0 0 28px; font-size: .74rem; font-weight: 700; letter-spacing: .28em; text-transform: uppercase; }
.eyebrow::after { content: ""; width: 72px; height: 1px; background: currentColor; opacity: .7; }
.hero { position: relative; min-height: 690px; padding: 72px 0 40px; overflow: clip; border-bottom: 1px solid var(--line); }
.hero-copy { position: relative; z-index: 2; max-width: 630px; }
.hero h1 { max-width: 650px; margin: 0; font-size: clamp(4.2rem, 8.8vw, 8.2rem); line-height: .78; letter-spacing: -.075em; }
.hero h1 span { display: block; color: #74736f; }
.hero-intro { max-width: 510px; margin: 44px 0 30px; font-size: clamp(1.1rem, 1.6vw, 1.42rem); line-height: 1.45; color: #42413d; }
.hero-actions { display: flex; align-items: center; gap: 30px; }
.hero-art { position: absolute; z-index: 1; width: min(64vw, 920px); right: -2%; top: -2%; mix-blend-mode: multiply; filter: saturate(.96) contrast(1.02); }
.hero-rail { position: absolute; z-index: 3; right: 2.2%; top: 145px; display: grid; gap: 20px; font-size: .72rem; letter-spacing: .18em; }
.hero-rail strong { color: var(--orange); }
.hero-tags { position: absolute; bottom: 38px; left: 0; display: flex; gap: 34px; color: #494843; font-size: .64rem; letter-spacing: .24em; text-transform: uppercase; }

.section { padding: 104px 0; }
.section-head { display: grid; grid-template-columns: 1fr 1fr; align-items: end; gap: 50px; margin-bottom: 50px; }
.section-head h2 { max-width: 800px; margin: 0; font-size: clamp(3rem, 6vw, 6.6rem); line-height: .88; letter-spacing: -.065em; }
.section-head h2 span { color: #74736f; }
.section-head > p { max-width: 520px; margin: 0 0 8px auto; font-size: 1.12rem; line-height: 1.55; color: #4c4b47; }

.product-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.product-card { position: relative; min-height: 610px; padding: clamp(30px, 4vw, 54px); overflow: hidden; border-radius: var(--radius); background: #eff3ec; isolation: isolate; }
.product-card.reactiva { background: #eaf2fc; }
.product-card::before { content: ""; position: absolute; z-index: -1; inset: auto -15% -30% 15%; height: 65%; border-radius: 50%; background: rgba(255,255,255,.7); filter: blur(40px); }
.product-top { position: relative; z-index: 2; max-width: 390px; }
.product-status { display: inline-flex; align-items: center; gap: 8px; margin-bottom: 28px; padding: 8px 12px; border: 1px solid rgba(0,0,0,.16); border-radius: 999px; background: rgba(255,255,255,.62); font-size: .7rem; font-weight: 700; letter-spacing: .12em; text-transform: uppercase; }
.product-status::before { content: ""; width: 7px; height: 7px; border-radius: 50%; background: var(--orange); }
.product-name { margin: 0; font-size: clamp(2.8rem, 4vw, 4.4rem); line-height: .9; letter-spacing: -.055em; }
.product-line { margin: 16px 0; font-family: var(--serif); font-size: 2rem; line-height: 1.03; }
.product-description { max-width: 370px; margin: 0 0 30px; line-height: 1.55; color: #55544f; }
.phone { position: absolute; right: 5%; bottom: -80px; width: 44%; min-width: 245px; aspect-ratio: .52; padding: 12px; border: 2px solid #202020; border-radius: 48px; background: #0a0a0a; box-shadow: 0 30px 50px rgba(0,0,0,.25); transform: rotate(6deg); }
.phone-screen { height: 100%; padding: 36px 20px 20px; border: 1px solid #222; border-radius: 37px; background: radial-gradient(circle at 70% 15%, rgba(232,255,71,.18), transparent 28%), #0f1110; color: #fff; }
.phone-label { color: #9b9e97; font-size: .64rem; letter-spacing: .12em; text-transform: uppercase; }
.phone-screen h4 { margin: 8px 0 26px; font-size: 1.8rem; letter-spacing: -.04em; }
.workout-ring { display: grid; place-items: center; width: 118px; height: 118px; margin: 0 auto 26px; border: 8px solid #272b26; border-right-color: var(--lime); border-top-color: var(--lime); border-radius: 50%; }
.workout-ring strong { font-size: 2.2rem; }
.workout-list { display: grid; gap: 9px; }
.workout-row { display: flex; align-items: center; justify-content: space-between; padding: 12px; border-radius: 13px; background: #181b19; font-size: .73rem; }
.workout-row i { width: 8px; height: 8px; border-radius: 50%; background: var(--lime); }
.flow { position: absolute; right: 3%; bottom: 7%; width: 47%; display: grid; gap: 12px; }
.flow-node { position: relative; padding: 16px 18px; border: 1px solid rgba(0,0,0,.11); border-radius: 15px; background: rgba(255,255,255,.84); box-shadow: 0 16px 40px rgba(33,75,125,.08); font-size: .78rem; }
.flow-node span { display: block; margin-top: 4px; color: #787a7e; font-size: .68rem; }
.flow-node:not(:last-child)::after { content: "↓"; position: absolute; z-index: 2; right: 18px; bottom: -19px; color: #3478ee; }

.process { border-top: 1px solid var(--line); }
.process-grid { display: grid; grid-template-columns: repeat(4, 1fr); margin-top: 58px; }
.process-step { min-height: 220px; padding: 0 32px 0 0; border-right: 1px solid var(--line); }
.process-step + .process-step { padding-left: 32px; }
.process-step:last-child { border-right: 0; }
.process-icon { width: 40px; height: 40px; margin-bottom: 38px; color: var(--orange); }
.process-number { font-size: .7rem; letter-spacing: .12em; }
.process-step h3 { margin: 12px 0 10px; font-size: 1.35rem; }
.process-step p { margin: 0; color: var(--muted); line-height: 1.55; }

.about-grid { display: grid; grid-template-columns: 1.2fr .8fr; gap: 90px; }
.about-grid h2 { margin: 0; font-size: clamp(3.4rem, 6vw, 6rem); line-height: .9; letter-spacing: -.06em; }
.about-copy { padding-top: 12px; }
.about-copy p { margin: 0 0 24px; font-size: 1.2rem; line-height: 1.55; color: #4d4c47; }
.studio-principles { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 34px; }
.studio-principles span { padding: 10px 13px; border: 1px solid var(--line); border-radius: 999px; font-size: .73rem; text-transform: uppercase; letter-spacing: .1em; }

.contact-band { position: relative; overflow: hidden; padding: 86px 0; border-radius: var(--radius) var(--radius) 0 0; background: #090b0c; color: #fff; }
.contact-band::after { content: ""; position: absolute; width: 430px; height: 430px; right: 4%; top: -42%; border: 1px solid rgba(255,116,69,.45); border-radius: 50%; box-shadow: inset 0 0 80px rgba(255,116,69,.15), 0 0 60px rgba(255,116,69,.12); }
.contact-grid { position: relative; z-index: 2; display: grid; grid-template-columns: 1fr 1fr; gap: 70px; align-items: end; }
.contact-band h2 { max-width: 660px; margin: 0; font-family: var(--serif); font-weight: 400; font-size: clamp(3.4rem, 6vw, 6.4rem); line-height: .94; letter-spacing: -.045em; }
.contact-copy { max-width: 480px; }
.contact-copy p { margin: 0 0 28px; color: #c8cbc8; font-size: 1.08rem; line-height: 1.55; }
.site-footer { background: #090b0c; color: #c8cbc8; }
.footer-inner { display: flex; align-items: center; justify-content: space-between; min-height: 92px; border-top: 1px solid rgba(255,255,255,.14); font-size: .78rem; }
.footer-brand { color: #fff; font-family: var(--serif); font-size: 1.2rem; }
.footer-links { display: flex; gap: 28px; }
.footer-links a { text-decoration: none; }

.page-hero { padding: 100px 0 74px; border-bottom: 1px solid var(--line); }
.page-hero h1 { max-width: 980px; margin: 0; font-size: clamp(4rem, 8vw, 8rem); line-height: .85; letter-spacing: -.07em; }
.page-hero .lead { max-width: 680px; margin: 40px 0 0 auto; font-size: 1.25rem; line-height: 1.55; color: #4d4c47; }
.legal { max-width: 820px; padding: 82px 0 110px; }
.legal h2 { margin: 54px 0 14px; font-size: 2rem; letter-spacing: -.035em; }
.legal p, .legal li { color: #44433f; line-height: 1.7; }
.legal .updated { color: var(--muted); font-size: .84rem; }
.product-detail { padding: 86px 0 120px; }
.detail-grid { display: grid; grid-template-columns: .8fr 1.2fr; gap: 90px; }
.detail-sidebar { position: sticky; top: 32px; align-self: start; }
.detail-sidebar h2 { margin: 18px 0; font-size: 3rem; letter-spacing: -.055em; }
.detail-body section { padding: 42px 0; border-top: 1px solid var(--line); }
.detail-body h3 { margin: 0 0 18px; font-size: 2rem; letter-spacing: -.04em; }
.detail-body p { max-width: 700px; margin: 0; color: #4d4c47; font-size: 1.1rem; line-height: 1.65; }
.concept-flow { display: grid; grid-template-columns: repeat(5, 1fr); gap: 8px; margin-top: 28px; }
.concept-flow div { padding: 22px 16px; border-radius: 15px; background: #fff; border: 1px solid var(--line); font-size: .78rem; }
.not-found { min-height: 70vh; display: grid; align-content: center; }
.not-found h1 { margin: 0; font-size: clamp(6rem, 18vw, 14rem); line-height: .8; letter-spacing: -.08em; }
.not-found p { margin: 36px 0; font-size: 1.2rem; }

[data-reveal] { opacity: 0; transform: translateY(24px); transition: opacity .7s ease, transform .7s ease; }
[data-reveal][data-visible] { opacity: 1; transform: none; }

@media (max-width: 980px) {
  .site-header { min-height: 82px; }
  .menu-button { display: block; }
  .nav { display: none; position: absolute; top: 74px; left: 0; right: 0; padding: 28px; border: 1px solid var(--line); border-radius: 20px; background: rgba(246,244,238,.98); box-shadow: 0 20px 50px rgba(0,0,0,.08); }
  .nav[data-open] { display: grid; }
  .nav-cta { justify-self: start; }
  .hero { min-height: auto; padding-top: 48px; padding-bottom: 520px; }
  .hero-art { width: 780px; max-width: none; right: 50%; top: auto; bottom: -105px; transform: translateX(58%); }
  .hero-rail { top: auto; bottom: 340px; }
  .hero-tags { bottom: 24px; }
  .section-head, .product-grid, .about-grid, .contact-grid, .detail-grid { grid-template-columns: 1fr; }
  .section-head > p { margin-left: 0; }
  .product-card { min-height: 650px; }
  .process-grid { grid-template-columns: 1fr 1fr; row-gap: 46px; }
  .process-step:nth-child(2) { border-right: 0; }
  .detail-sidebar { position: static; }
  .concept-flow { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 640px) {
  .shell { width: min(calc(100% - 28px), var(--max)); }
  .brand { font-size: 1.35rem; }
  .hero { padding-top: 40px; padding-bottom: 500px; }
  .hero h1 { font-size: clamp(3.8rem, 20vw, 5.6rem); }
  .hero-intro { margin-top: 32px; }
  .hero-actions { align-items: flex-start; flex-direction: column; gap: 18px; }
  .hero-art { width: 560px; top: 540px; bottom: auto; }
  .hero-rail { display: none; }
  .hero-tags { gap: 16px; font-size: .55rem; }
  .section { padding: 78px 0; }
  .section-head { margin-bottom: 36px; }
  .product-card { min-height: 650px; padding: 28px; }
  .product-line { font-size: 1.65rem; }
  .phone { width: 58%; right: 3%; bottom: -150px; }
  .flow { width: 62%; right: -5%; bottom: 3%; }
  .process-grid { grid-template-columns: 1fr; }
  .process-step, .process-step + .process-step { min-height: auto; padding: 0 0 36px; border-right: 0; border-bottom: 1px solid var(--line); }
  .process-step:last-child { border-bottom: 0; }
  .process-icon { margin-bottom: 22px; }
  .about-grid { gap: 42px; }
  .contact-band { padding: 68px 0; }
  .contact-grid { gap: 42px; }
  .footer-inner { align-items: flex-start; flex-direction: column; gap: 20px; padding: 28px 0; }
  .footer-links { flex-wrap: wrap; }
  .page-hero { padding: 70px 0 58px; }
  .legal { padding-top: 54px; }
  .concept-flow { grid-template-columns: 1fr; }
}

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