:root {
  color-scheme: light;
  --ink: #101312;
  --paper: #f4f1e9;
  --paper-alt: #e7e5dc;
  --olive: #777e68;
  --accent: #9b5148;
  --muted: #62665f;
  --line: rgba(16, 19, 18, .17);
  --serif: "Playfair Display", Georgia, serif;
  --sans: "Onest", "Segoe UI", sans-serif;
  --gutter: clamp(22px, 6.1vw, 104px);
  --content: 1440px;
}

* { box-sizing: border-box; }
/* scroll-behavior: smooth убран: в связке с reveal-анимациями он прерывал прокрутку к якорям
   (клик по пункту меню менял hash, но страница не ехала). Мгновенный переход надёжнее. */
html { scroll-padding-top: 92px; }
body { margin: 0; background: var(--paper); color: var(--ink); font-family: var(--sans); font-size: 15px; -webkit-font-smoothing: antialiased; }
body, button, a { -webkit-tap-highlight-color: transparent; }
a { color: inherit; text-decoration: none; }
button { color: inherit; font: inherit; }
::selection { color: var(--paper); background: var(--olive); }
.skip-link { position: fixed; z-index: 100; top: 10px; left: 10px; padding: 12px 16px; transform: translateY(-160%); background: var(--paper); color: var(--ink); }
.skip-link:focus { transform: none; }
:focus-visible { outline: 2px solid #a9b18e; outline-offset: 5px; }

.site-header { position: fixed; z-index: 20; inset: 0 0 auto; display: flex; align-items: center; justify-content: space-between; min-height: 86px; padding: 0 var(--gutter); color: var(--paper); border-bottom: 1px solid rgba(244,241,233,.16); transition: min-height .35s ease, background .35s ease, border-color .35s ease; }
.site-header.is-scrolled { min-height: 68px; background: rgba(16,19,18,.91); border-color: rgba(244,241,233,.1); backdrop-filter: blur(18px); }
.brand { display: inline-flex; align-items: baseline; gap: 12px; font-size: 10px; font-weight: 600; letter-spacing: .12em; white-space: nowrap; }
.brand-wordmark { font-size: 21px; letter-spacing: .06em; }
.brand-product { font-size: 9px; letter-spacing: .16em; opacity: .82; }
.site-nav { display: flex; align-items: center; gap: clamp(20px, 3vw, 47px); font-size: 12px; color: rgba(244,241,233,.8); }
.site-nav a:not(.nav-buy) { transition: color .2s ease; }
.site-nav a:not(.nav-buy):hover { color: white; }
.nav-buy { display: inline-flex; align-items: center; gap: 20px; min-height: 42px; padding: 0 19px; color: var(--ink); background: var(--paper); border-radius: 2px; transition: background .2s ease, transform .2s ease; }
.nav-buy:hover { background: #dfe1d4; transform: translateY(-2px); }
a:active, button:active { opacity: .72; }
.nav-buy:active { transform: scale(.98); }

.menu-toggle { display: none; }

.hero { position: relative; min-height: 740px; height: 100svh; max-height: 1100px; overflow: hidden; color: var(--paper); background: radial-gradient(ellipse 70% 65% at 72% 38%, rgba(70,79,60,.72), transparent 76%), radial-gradient(ellipse 48% 35% at 27% 82%, rgba(48,57,46,.72), transparent 80%), radial-gradient(ellipse at 50% 45%, #282d27 0%, #171b18 72%, #101312 100%); }
.hero-canvas, .hero-grain { position: absolute; inset: 0; width: 100%; height: 100%; pointer-events: none; }
.hero-canvas { opacity: .8; }
.hero-grain { z-index: 1; opacity: .11; background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 180 180' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.84' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='.4'/%3E%3C/svg%3E"); mix-blend-mode: soft-light; }
.hero-inner { position: relative; z-index: 2; display: grid; grid-template-columns: minmax(0, .93fr) minmax(380px, 1.07fr); align-items: center; width: min(100%, var(--content)); min-height: 100%; margin: auto; padding: 130px var(--gutter) 95px; }
.hero-copy { position: relative; z-index: 2; padding-top: 10px; }
.eyebrow { margin: 0 0 24px; color: #b1b5a6; font-size: 10px; font-weight: 500; letter-spacing: .17em; line-height: 1.5; }
.eyebrow span { padding: 0 5px; color: #c5bca5; }
.hero h1 { margin: 0; font-size: clamp(58px, 7.15vw, 108px); font-weight: 400; letter-spacing: -.072em; line-height: .98; }
.hero h1 em, .section-title em { font-family: var(--serif); font-weight: 500; }
.hero h1 em { color: #c4c5b5; }
.hero-description { max-width: 390px; margin: 30px 0 0; color: rgba(244,241,233,.73); font-size: 15px; line-height: 1.8; }
.hero-actions { display: flex; align-items: center; gap: 28px; margin-top: 35px; }
.button { display: inline-flex; align-items: center; justify-content: space-between; gap: 28px; min-height: 54px; padding: 0 21px; border: 1px solid transparent; font-size: 12px; transition: transform .24s ease, background .24s ease, color .24s ease; }
.button:hover { transform: translate(var(--mx, 0px), calc(var(--my, 0px) - 3px)); }
.button-light { color: var(--ink); background: var(--paper); }
.button-light:hover { background: #dedfd3; }
.text-link, .inline-link { display: inline-flex; align-items: center; gap: 15px; font-size: 12px; }
.text-link { color: rgba(244,241,233,.78); transition: color .2s ease; }
.text-link:hover { color: white; }
.hero-note { margin: 35px 0 0; color: #b1b5a6; font-size: 10px; letter-spacing: .08em; }
.hero-note span { margin: 0 8px; color: #d1c3a7; }
.hero-product { position: relative; justify-self: end; width: min(100%, 570px); height: min(66vh, 690px); min-height: 440px; overflow: hidden; }
.hero-product::before, .hero-product::after { position: absolute; top: 50%; left: 50%; aspect-ratio: 1; border: 1px solid rgba(244,241,233,.17); border-radius: 50%; content: ""; transform: translate(-50%,-50%); }
.hero-product::before { width: 82%; }
.hero-product::after { width: 64%; border-style: dashed; border-color: rgba(244,241,233,.12); }
.hero-product picture { position: absolute; z-index: 1; inset: 0; }
.hero-product img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: contain; filter: drop-shadow(0 24px 30px rgba(0,0,0,.3)); }
.scroll-cue { position: absolute; bottom: 37px; left: var(--gutter); display: flex; align-items: center; gap: 14px; color: rgba(244,241,233,.6); font-size: 8px; letter-spacing: .17em; }
.scroll-cue i { position: relative; width: 38px; height: 1px; background: rgba(244,241,233,.4); }
.scroll-cue i::after { position: absolute; inset: -2px 0 auto auto; width: 5px; height: 5px; border-top: 1px solid currentColor; border-right: 1px solid currentColor; content: ""; transform: rotate(45deg); }
.hero-coordinate { position: absolute; right: var(--gutter); bottom: 39px; color: rgba(244,241,233,.45); font-size: 8px; letter-spacing: .18em; }

.section-wrap { width: min(100%, var(--content)); margin: 0 auto; padding-right: var(--gutter); padding-left: var(--gutter); }
.section-light { background: var(--paper); }
.product-section { padding: clamp(90px, 12vw, 174px) 0; }
.product-layout { display: grid; grid-template-columns: minmax(0, .94fr) minmax(0, 1.06fr); align-items: center; gap: clamp(60px, 9vw, 140px); }
.product-visual { position: relative; max-width: 580px; }
.product-frame { position: relative; aspect-ratio: .88; overflow: hidden; }
.product-frame::before, .product-frame::after { position: absolute; top: 50%; left: 50%; aspect-ratio: 1; border: 1px solid rgba(119,126,104,.18); border-radius: 50%; content: ""; transform: translate(-50%,-50%); }
.product-frame::before { width: 74%; }
.product-frame::after { width: 59%; border-style: dashed; border-color: rgba(119,126,104,.16); }
.product-frame picture { position: absolute; z-index: 1; inset: 0; }
.product-frame img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: contain; filter: drop-shadow(0 18px 24px rgba(16,19,18,.14)); }
.visual-caption { display: flex; align-items: center; gap: 8px; margin-top: 13px; color: var(--muted); font-size: 8px; letter-spacing: .15em; }
.visual-caption::before { width: 6px; height: 6px; border-radius: 50%; background: var(--accent); content: ""; }
.eyebrow-dark { color: #5f6653; }
.section-title { margin: 0; font-size: clamp(40px, 5.3vw, 75px); font-weight: 400; letter-spacing: -.065em; line-height: 1.08; }
.section-title em { color: var(--olive); }
.body-large { max-width: 510px; margin: 28px 0 0; font-size: clamp(17px, 1.55vw, 20px); line-height: 1.65; }
.body-muted { max-width: 460px; margin: 14px 0 0; color: var(--muted); font-size: 13px; line-height: 1.8; }
.inline-link { margin-top: 25px; border-bottom: 1px solid rgba(16,19,18,.35); padding-bottom: 9px; transition: gap .2s ease, color .2s ease; }
.inline-link:hover { gap: 21px; color: #5f6653; }
.product-facts { display: grid; grid-template-columns: repeat(3,1fr); gap: 16px; margin-top: 51px; padding-top: 20px; border-top: 1px solid var(--line); }
.product-facts div { display: flex; flex-direction: column; gap: 5px; }
.product-facts strong { font-size: clamp(24px, 3vw, 38px); font-weight: 400; letter-spacing: -.055em; }
.product-facts strong small { font-size: 12px; letter-spacing: 0; }
.product-facts span { color: var(--muted); font-size: 9px; line-height: 1.5; }

.formula-section { padding: clamp(100px, 12vw, 160px) 0 120px; background: var(--paper-alt); }
.formula-heading { display: grid; grid-template: "eyebrow eyebrow" auto "title index" auto "title intro" 1fr / 1fr minmax(240px, .62fr); align-items: end; gap: 18px 55px; margin-bottom: clamp(55px, 8vw, 100px); }
.formula-heading .eyebrow { grid-area: eyebrow; margin-bottom: 0; }
.formula-heading .section-title { grid-area: title; }
.formula-index { grid-area: index; justify-self: end; align-self: end; color: var(--muted); font-size: 9px; letter-spacing: .12em; }
.section-intro { grid-area: intro; max-width: 280px; margin: 0 0 6px; color: var(--muted); font-size: 13px; line-height: 1.75; }
.formula-grid { display: grid; grid-template-columns: repeat(3, 1fr); border-top: 1px solid var(--line); }
.formula-entry { position: relative; display: flex; min-height: 365px; flex-direction: column; padding: 18px clamp(17px, 2.5vw, 36px) 10px 0; }
.formula-entry + .formula-entry { padding-left: clamp(17px, 2.5vw, 36px); border-left: 1px solid var(--line); }
.formula-entry header { display: flex; justify-content: space-between; gap: 12px; color: var(--muted); font-size: 8px; letter-spacing: .12em; }
.formula-entry header span:first-child { color: var(--accent); font-size: 10px; }
.formula-drawing { width: 100%; height: 185px; margin: 24px 0 26px; overflow: visible; fill: none; stroke: var(--olive); stroke-width: 1; stroke-linecap: round; stroke-linejoin: round; }
.formula-drawing circle { fill: var(--paper-alt); }
.formula-entry h3 { margin: 0; font-size: clamp(21px, 2.1vw, 29px); font-weight: 400; letter-spacing: -.045em; }
.formula-entry p { max-width: 330px; margin: 10px 0 0; color: var(--muted); font-size: 11px; line-height: 1.8; }
.formula-entry-result header span:first-child, .formula-entry-result h3 { color: var(--accent); }
.formula-entry-result .formula-drawing { stroke: var(--accent); }
.science-note { margin: 28px 0 0; color: var(--muted); font-size: 10px; }
.science-note span { margin-right: 8px; color: var(--accent); }

.section-dark { color: var(--paper); background: #171b18; }
.approach-section { position: relative; padding: clamp(100px, 12vw, 170px) 0; overflow: hidden; }
.approach-section::before { position: absolute; top: 0; right: 0; width: 38%; height: 1px; background: linear-gradient(90deg, transparent, rgba(244,241,233,.36)); content: ""; }
.approach-layout { display: grid; grid-template-columns: .9fr 1.1fr; gap: clamp(60px, 11vw, 160px); }
.approach-section .eyebrow { color: #aeb39f; }
.approach-section .section-title em { color: #c4a19a; }
.approach-intro { max-width: 340px; margin: 24px 0 0; color: rgba(244,241,233,.64); font-size: 13px; line-height: 1.8; }
.approach-orbit { position: relative; width: min(100%, 350px); aspect-ratio: 1; margin: 48px auto 0; border: 1px solid rgba(244,241,233,.22); border-radius: 50%; }
.approach-orbit::before, .approach-orbit::after { position: absolute; inset: 13%; border: 1px solid rgba(244,241,233,.16); border-radius: 50%; content: ""; }
.approach-orbit::after { inset: 27%; border-color: rgba(244,241,233,.25); }
.orbit-core { position: absolute; top: 50%; left: 50%; width: 56px; height: 56px; border: 1px solid rgba(244,241,233,.6); border-radius: 50%; background: radial-gradient(circle at 30% 30%, #a5aa91, #535d4e 70%); transform: translate(-50%,-50%); box-shadow: 0 0 45px rgba(177,185,155,.2); transition: box-shadow .7s ease, background .7s ease; }
.orbit-ring { position: absolute; inset: 20%; border: 1px dashed rgba(244,241,233,.25); border-radius: 50%; animation: orbit 32s linear infinite; }
.orbit-dot { position: absolute; top: 15%; left: 54%; width: 8px; height: 8px; border-radius: 50%; background: #d1ceb9; transition: transform .8s cubic-bezier(.2,.75,.2,1); }
.orbit-dot-two { top: 69%; left: 19%; width: 5px; height: 5px; background: #c78b80; transition: transform .8s cubic-bezier(.2,.75,.2,1); }
.orbit-crosshair { position: absolute; top: 50%; left: 50%; width: 116%; height: 1px; background: rgba(244,241,233,.11); transform: translate(-50%,-50%); }
.orbit-code { position: absolute; right: 8%; bottom: 12%; color: rgba(244,241,233,.55); font-size: 8px; letter-spacing: .14em; }
.approach-orbit[data-step="1"] .orbit-dot { transform: translate(-16px, 24px); }
.approach-orbit[data-step="2"] .orbit-dot-two { transform: translate(34px, -27px); }
.approach-orbit[data-step="3"] .orbit-core { box-shadow: 0 0 68px rgba(177,185,155,.38); background: radial-gradient(circle at 30% 30%, #c5c8b3, #68745b 70%); }
.approach-orbit[data-step="3"] .orbit-dot { transform: translate(-18px, 35px); }
.approach-orbit[data-step="3"] .orbit-dot-two { transform: translate(39px, -19px); }
.steps-list { align-self: center; border-top: 1px solid rgba(244,241,233,.23); }
.step { position: relative; display: grid; width: 100%; grid-template-columns: 48px 1fr 20px; gap: 20px; padding: 29px 8px 33px 0; border: 0; border-bottom: 1px solid rgba(244,241,233,.2); background: transparent; color: inherit; text-align: left; cursor: pointer; transition: background .25s ease; }
.step::before { position: absolute; inset: 0 auto 0 -1px; width: 1px; background: var(--accent); content: ""; transform: scaleY(0); transform-origin: top; transition: transform .35s ease; }
.step.is-active::before { transform: scaleY(1); }
.step.is-active { background: rgba(244,241,233,.035); }
.step-number { padding-top: 4px; color: #aeb39f; font-size: 9px; letter-spacing: .1em; }
.step.is-active .step-number { color: #c78b80; }
.step-copy { display: grid; gap: 10px; }
.step-title { font-size: 17px; letter-spacing: -.02em; }
.step-description { max-width: 440px; color: rgba(244,241,233,.62); font-size: 11px; line-height: 1.8; }
.step-mark { color: #aeb39f; transition: transform .2s ease; }
.step:hover .step-mark, .step.is-active .step-mark { transform: translate(3px,-3px); color: #c78b80; }

.inside-section { padding: clamp(100px, 12vw, 160px) 0; }
.inside-layout { display: grid; grid-template-columns: .85fr 1.15fr; align-items: start; gap: clamp(55px, 10vw, 145px); }
.inside-layout .body-large { max-width: 390px; font-size: 17px; }
.inside-list { border-top: 1px solid var(--line); }
.inside-list > div { display: grid; grid-template-columns: .8fr 1.2fr; gap: 20px; padding: 19px 0; border-bottom: 1px solid var(--line); font-size: 11px; }
.inside-list > div span { color: var(--muted); }
.inside-list > div strong { font-weight: 500; }
.inside-list .inside-missing strong { color: var(--muted); }
.inside-list > p { max-width: 500px; margin: 20px 0 0; color: var(--muted); font-size: 10px; line-height: 1.8; }

.trust-section { padding: clamp(75px, 9vw, 125px) 0; background: var(--paper-alt); }
.trust-layout { display: grid; grid-template-columns: .72fr 1.28fr; align-items: center; gap: clamp(45px, 8vw, 110px); }
.trust-visual { display: flex; flex-direction: column; align-items: flex-start; justify-self: center; max-width: 320px; padding: 8px 0 8px 23px; border-left: 1px solid var(--accent); }
.trust-code, .trust-caption { color: var(--muted); font-size: 8px; letter-spacing: .14em; }
.trust-visual strong { margin: 23px 0 10px; color: rgba(119,126,104,.62); font-size: clamp(78px, 11vw, 142px); font-weight: 400; letter-spacing: -.09em; line-height: .8; }
.trust-title { font-size: 17px; letter-spacing: -.025em; line-height: 1.4; }
.trust-line { width: 42px; height: 1px; margin: 20px 0 12px; background: var(--accent); }
.trust-layout .section-title { font-size: clamp(38px, 4.7vw, 65px); }
.trust-copy { max-width: 590px; margin: 24px 0 0; color: #5f645b; font-size: 13px; line-height: 1.8; }

.purchase-section { padding: clamp(55px, 7vw, 100px) 0; background: var(--paper); }
.purchase-card { position: relative; display: grid; grid-template-columns: 1fr .78fr; min-height: 590px; overflow: hidden; padding-top: clamp(55px, 7vw, 95px); padding-bottom: clamp(55px, 7vw, 95px); color: var(--paper); background: #242923; }
.purchase-card::before { position: absolute; inset: 0 0 0 35%; background: radial-gradient(ellipse 42% 65% at 72% 45%, rgba(119,126,104,.22), transparent 72%), repeating-radial-gradient(circle at 72% 45%, transparent 0 48px, rgba(244,241,233,.045) 49px 50px); content: ""; pointer-events: none; }
.purchase-copy { position: relative; z-index: 2; align-self: center; padding: 0 0 0 clamp(30px, 5vw, 72px); }
.purchase-copy .eyebrow { color: #c0c5b4; }
.purchase-copy .section-title em { color: #c4a19a; }
.purchase-copy > p:not(.eyebrow) { margin: 20px 0 28px; color: rgba(244,241,233,.67); font-size: 11px; line-height: 1.8; }
.purchase-image { position: relative; z-index: 1; align-self: stretch; min-height: 370px; overflow: hidden; }
.purchase-image picture { position: absolute; inset: 0; }
.purchase-image img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: contain; filter: drop-shadow(0 22px 28px rgba(0,0,0,.24)); }

.faq-section { padding: clamp(95px, 11vw, 145px) 0; }
.faq-layout { display: grid; grid-template-columns: .7fr 1.3fr; gap: clamp(55px, 10vw, 140px); }
.faq-list { border-top: 1px solid var(--line); }
.faq-item { border-bottom: 1px solid var(--line); }
.faq-item h3 { margin: 0; font-size: inherit; font-weight: 400; }
.faq-item button { display: flex; width: 100%; align-items: center; justify-content: space-between; gap: 20px; padding: 22px 0; border: 0; background: none; text-align: left; cursor: pointer; font-size: 13px; }
.faq-item button span { display: grid; width: 26px; height: 26px; flex: 0 0 26px; place-items: center; border: 1px solid var(--line); border-radius: 50%; font-size: 17px; font-weight: 300; transition: transform .2s ease, background .2s ease; }
.faq-item button[aria-expanded="true"] span { color: var(--paper); background: var(--olive); transform: rotate(45deg); }
.faq-answer { padding: 0 45px 20px 0; }
.faq-answer p { max-width: 630px; margin: 0; color: #696e65; font-size: 11px; line-height: 1.8; }

.site-footer { padding: 67px 0 20px; color: var(--paper); background: var(--ink); }
.footer-main { display: grid; grid-template-columns: .8fr 1.2fr 1fr; align-items: start; gap: 32px; padding-bottom: 64px; }
.brand-footer { justify-self: start; }
.footer-main > p { margin: 0; font-size: clamp(20px, 2.8vw, 34px); letter-spacing: -.05em; line-height: 1.3; }
.footer-main > p em { color: #bec1b1; font-family: var(--serif); font-weight: 500; }
.footer-links { display: grid; justify-self: end; gap: 12px; color: rgba(244,241,233,.66); font-size: 10px; }
.footer-links a:hover { color: white; }
.footer-bottom { display: flex; align-items: center; justify-content: space-between; gap: 15px; padding-top: 18px; border-top: 1px solid rgba(244,241,233,.2); color: rgba(244,241,233,.55); font-size: 9px; }
.footer-bottom a { color: var(--paper); }

html.js .reveal { opacity: 0; transform: translateY(19px); filter: blur(4px); transition: opacity .8s cubic-bezier(.2,.75,.2,1), transform .8s cubic-bezier(.2,.75,.2,1), filter .8s ease; }
html.js .reveal.is-visible { opacity: 1; transform: none; filter: none; }
.hero-copy .reveal:nth-child(2) { transition-delay: .09s; }
.hero-copy .reveal:nth-child(3) { transition-delay: .17s; }
.hero-copy .reveal:nth-child(4) { transition-delay: .25s; }
.hero-copy .reveal:nth-child(5) { transition-delay: .32s; }
@keyframes orbit { to { transform: rotate(360deg); } }

@media (min-width: 1500px) {
  .hero h1 { font-size: 108px; }
}
@media (max-width: 980px) {
  :root { --gutter: clamp(24px, 5vw, 52px); }
  .site-header { min-height: 74px; }
  .site-nav { gap: 21px; font-size: 11px; }
  .nav-buy { min-height: 38px; padding: 0 15px; }
}
@media (min-width: 821px) and (max-width: 980px) {
  .hero { min-height: 700px; }
  .hero-inner { grid-template-columns: 1fr .9fr; padding-top: 115px; }
  .hero h1 { font-size: clamp(57px, 8vw, 82px); }
  .hero-product { height: min(60vh, 590px); min-height: 390px; }
  .product-layout { gap: 55px; }
  .formula-grid { gap: 0; }
  .approach-layout { gap: 55px; }
  .approach-orbit { width: 260px; }
}
@media (max-width: 820px) {
  .site-nav { gap: 12px; font-size: 10px; }
  .nav-buy { gap: 10px; min-height: 36px; padding: 0 11px; }
  .brand-wordmark { font-size: 18px; }
  .brand-product { font-size: 8px; }
  .hero { min-height: 700px; }
  .hero-inner { grid-template-columns: 1fr .9fr; padding-top: 115px; }
  .hero h1 { font-size: clamp(57px, 8vw, 82px); }
  .hero-product { height: min(60vh, 590px); min-height: 390px; }
  .product-layout { gap: 55px; }
  .formula-grid { gap: 0; }
  .approach-layout { gap: 55px; }
  .approach-orbit { width: 260px; }
}
@media (max-width: 720px) {
  :root { --gutter: 24px; }
  html { scroll-padding-top: 74px; }
  .site-header { min-height: 70px; }
  .site-header.is-scrolled { min-height: 64px; }
  .brand { gap: 9px; }
  .brand-wordmark { font-size: 19px; }
  .brand-product { font-size: 8px; }
  .menu-toggle { display: none; width: 42px; height: 42px; flex-direction: column; align-items: center; justify-content: center; gap: 6px; border: 1px solid rgba(244,241,233,.35); border-radius: 50%; background: transparent; cursor: pointer; }
  html.js .menu-toggle { display: flex; }
  .menu-toggle span { display: block; width: 14px; height: 1px; background: var(--paper); transition: transform .2s ease; }
  .menu-toggle[aria-expanded="true"] span:first-child { transform: translateY(3.5px) rotate(45deg); }
  .menu-toggle[aria-expanded="true"] span:last-child { transform: translateY(-3.5px) rotate(-45deg); }
  .site-nav { position: absolute; top: calc(100% + 1px); right: 0; left: 0; display: flex; flex-direction: column; align-items: stretch; gap: 0; padding: 8px var(--gutter) 24px; background: rgba(16,19,18,.97); backdrop-filter: blur(18px); }
  html.js .site-nav { visibility: hidden; opacity: 0; transform: translateY(-8px); transition: opacity .2s ease, transform .2s ease, visibility .2s; }
  html.js .site-nav.is-open { visibility: visible; opacity: 1; transform: none; }
  .site-nav a:not(.nav-buy) { padding: 14px 0; border-bottom: 1px solid rgba(244,241,233,.12); }
  .nav-buy { justify-content: space-between; margin-top: 17px; }
  .hero { min-height: 0; height: auto; max-height: none; }
  .hero-inner { display: flex; min-height: 100svh; flex-direction: column; align-items: stretch; justify-content: center; padding: 128px var(--gutter) 87px; }
  .hero-copy { padding-top: 0; }
  .hero .eyebrow { margin-bottom: 18px; font-size: 9px; }
  .hero h1 { font-size: clamp(52px, 12.5vw, 78px); }
  .hero-description { max-width: 330px; margin-top: 19px; font-size: 13px; }
  .hero-actions { gap: 17px; margin-top: 23px; }
  .button { min-height: 48px; gap: 15px; padding: 0 15px; font-size: 10px; }
  .text-link { gap: 8px; font-size: 10px; }
  .hero-note { margin-top: 19px; font-size: 9px; }
  .hero-product { align-self: center; width: min(76%, 355px); height: auto; min-height: 0; aspect-ratio: 1; margin: 27px 0 0; }
  .scroll-cue { bottom: 23px; left: var(--gutter); }
  .hero-coordinate { right: var(--gutter); bottom: 24px; font-size: 7px; }
  .product-section { padding: 83px 0; }
  .product-layout { grid-template-columns: 1fr; gap: 42px; }
  .product-visual { width: min(100%, 440px); margin: auto; }
  .product-frame { aspect-ratio: 1 / .95; }
  .product-copy .section-title { font-size: clamp(42px, 10vw, 64px); }
  .body-large { margin-top: 21px; font-size: 16px; }
  .product-facts { margin-top: 37px; }
  .formula-section { padding: 85px 0 72px; }
  .formula-heading { display: block; margin-bottom: 42px; }
  .formula-heading .section-title { margin-top: 27px; font-size: clamp(43px, 10vw, 66px); }
  .formula-index { margin-top: 12px; }
  .section-intro { margin-top: 17px; }
  .formula-grid { grid-template-columns: 1fr; }
  .formula-entry { display: grid; min-height: 0; grid-template-columns: 96px 1fr; gap: 0 18px; padding: 18px 0 22px; }
  .formula-entry + .formula-entry { padding-left: 0; border-top: 1px solid var(--line); border-left: 0; }
  .formula-entry header { grid-column: 1 / -1; }
  .formula-drawing { grid-column: 1; width: 96px; height: 80px; margin: 15px 0 0; }
  .formula-entry > div { grid-column: 2; grid-row: 2; align-self: center; }
  .formula-entry h3 { font-size: 21px; }
  .formula-entry p { margin-top: 7px; font-size: 10px; }
  .approach-section { padding: 86px 0; }
  .approach-layout { grid-template-columns: 1fr; gap: 36px; }
  .approach-section .section-title { font-size: clamp(45px, 11vw, 69px); }
  .approach-orbit { position: relative; top: auto; right: auto; width: 135px; margin: -8px 0 -18px auto; opacity: .7; transform: none; }
  .approach-intro { max-width: 250px; }
  .step { grid-template-columns: 33px 1fr 18px; gap: 12px; padding: 23px 0; }
  .step-title { font-size: 15px; }
  .inside-section { padding: 85px 0; }
  .inside-layout { grid-template-columns: 1fr; gap: 32px; }
  .inside-layout .section-title { font-size: clamp(45px, 11vw, 68px); }
  .inside-list > div { grid-template-columns: .75fr 1.25fr; gap: 10px; font-size: 10px; }
  .trust-section { padding: 60px 0 82px; }
  .trust-layout { grid-template-columns: 1fr; gap: 35px; }
  .trust-visual { width: auto; max-width: 100%; justify-self: start; }
  .trust-layout .section-title { font-size: clamp(38px, 9vw, 58px); }
  .trust-copy { font-size: 12px; }
  .purchase-section { padding: 55px 14px; }
  .purchase-card { grid-template-columns: 1fr; gap: 30px; padding: 38px 25px 25px; }
  .purchase-copy { padding: 0; }
  .purchase-copy .section-title { font-size: clamp(45px, 11vw, 70px); }
  .purchase-image { min-height: 300px; }
  .faq-section { padding: 85px 0; }
  .faq-layout { grid-template-columns: 1fr; gap: 34px; }
  .faq-layout .section-title { font-size: 55px; }
  .faq-item button { padding: 19px 0; font-size: 12px; }
  .footer-main { grid-template-columns: 1fr 1fr; gap: 35px 20px; padding-bottom: 42px; }
  .footer-main > p { grid-column: 1 / -1; grid-row: 2; font-size: 28px; }
  .footer-links { grid-column: 1 / -1; justify-self: start; grid-template-columns: 1fr 1fr; gap: 13px 20px; }
  .footer-bottom { flex-wrap: wrap; justify-content: flex-start; gap: 10px 16px; font-size: 8px; }
  .footer-bottom a { margin-left: auto; }
}
@media (max-width: 380px) {
  :root { --gutter: 18px; }
  .hero-actions { gap: 12px; }
  .hero h1 { font-size: 50px; }
  .hero-product { width: 88%; }
  .product-facts { gap: 8px; }
  .product-facts span { font-size: 8px; }
  .footer-links { grid-template-columns: 1fr; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
  html.js .reveal { opacity: 1; transform: none; filter: none; }
}