:root {
  --ink: #102c35;
  --ink-deep: #091d24;
  --sea: #25616a;
  --sea-light: #8db3ae;
  --copper: #b46845;
  --paper: #f5f0e6;
  --paper-deep: #e8dfd0;
  --mist: #dce8e5;
  --white: #fffdf8;
  --text: #26383c;
  --muted: #68777a;
  --line: rgba(16, 44, 53, 0.16);
  --serif: "Palatino Linotype", Palatino, "Book Antiqua", Georgia, serif;
  --sans: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --shell: min(1160px, calc(100vw - 40px));
  --shadow: 0 24px 70px rgba(9, 29, 36, 0.12);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--paper); color: var(--text); font-family: var(--sans); font-size: 17px; line-height: 1.65; }
a { color: inherit; }
button, a { -webkit-tap-highlight-color: transparent; }
img { max-width: 100%; display: block; }
.shell { width: var(--shell); margin-inline: auto; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0; }
.skip-link { position: fixed; left: 16px; top: -60px; z-index: 999; padding: 10px 14px; background: var(--white); color: var(--ink); font-weight: 700; }
.skip-link:focus { top: 16px; }

.site-header { position: fixed; inset: 0 0 auto; z-index: 100; border-bottom: 1px solid transparent; transition: background .25s ease, border-color .25s ease, box-shadow .25s ease; }
.site-header.scrolled { background: rgba(245,240,230,.94); border-color: var(--line); box-shadow: 0 10px 35px rgba(9,29,36,.07); backdrop-filter: blur(15px); }
.header-inner { min-height: 82px; display: flex; align-items: center; justify-content: space-between; gap: 32px; }
.wordmark { display: inline-flex; align-items: center; gap: 12px; text-decoration: none; color: var(--ink); font-family: var(--serif); font-size: 23px; font-weight: 700; letter-spacing: .015em; }
.wordmark-mark { position: relative; width: 35px; height: 35px; display: grid; place-items: center; border: 1px solid currentColor; border-radius: 50%; overflow: hidden; }
.wordmark-mark::before, .wordmark-mark::after, .wordmark-mark i { content: ""; position: absolute; left: 4px; right: 4px; height: 8px; border-top: 1px solid currentColor; border-radius: 50%; }
.wordmark-mark::before { bottom: 9px; }
.wordmark-mark::after { bottom: 4px; opacity: .65; }
.wordmark-mark i { bottom: 14px; opacity: .35; }
.primary-nav { display: flex; align-items: center; gap: clamp(16px, 2vw, 28px); }
.primary-nav a { color: var(--ink); font-size: 13px; font-weight: 700; letter-spacing: .04em; text-decoration: none; }
.primary-nav a:not(.nav-cta) { position: relative; padding-block: 10px; }
.primary-nav a:not(.nav-cta)::after { content: ""; position: absolute; left: 0; right: 100%; bottom: 5px; height: 1px; background: var(--copper); transition: right .2s ease; }
.primary-nav a:hover::after, .primary-nav a:focus-visible::after { right: 0; }
.nav-cta { padding: 10px 15px; border: 1px solid var(--ink); }
.nav-cta:hover, .nav-cta:focus-visible { background: var(--ink); color: var(--white); }
.nav-toggle { display: none; background: transparent; border: 0; width: 42px; height: 42px; padding: 9px; }
.nav-toggle > span:not(.sr-only) { display: block; width: 24px; height: 1px; margin: 5px 0; background: var(--ink); }

.hero { position: relative; min-height: 890px; padding: 170px 0 56px; overflow: hidden; background: var(--paper); }
.hero::before { content: ""; position: absolute; width: 850px; height: 850px; right: -330px; top: -170px; border: 1px solid rgba(37,97,106,.18); border-radius: 50%; box-shadow: 0 0 0 95px rgba(37,97,106,.035), 0 0 0 190px rgba(37,97,106,.025); }
.hero-current { position: absolute; right: -80px; bottom: 110px; width: 58%; height: 220px; opacity: .35; background: repeating-radial-gradient(ellipse at 80% 100%, transparent 0 19px, rgba(37,97,106,.25) 20px 21px, transparent 22px 40px); transform: rotate(-5deg); }
.hero-grid { position: relative; display: grid; grid-template-columns: minmax(0,1.55fr) minmax(310px,.65fr); gap: 90px; align-items: end; }
.eyebrow { margin: 0 0 22px; color: var(--copper); font-size: 12px; font-weight: 800; letter-spacing: .16em; line-height: 1.3; text-transform: uppercase; }
h1, h2, h3 { margin-top: 0; color: var(--ink); }
h1 { max-width: 820px; margin-bottom: 28px; font-family: var(--serif); font-size: clamp(58px, 7vw, 100px); font-weight: 500; letter-spacing: -.055em; line-height: .97; }
.hero-lead { max-width: 690px; margin: 0 0 38px; color: #42575b; font-family: var(--serif); font-size: clamp(21px, 2vw, 28px); line-height: 1.45; }
.hero-actions { display: flex; align-items: center; flex-wrap: wrap; gap: 24px; }
.button { display: inline-flex; min-height: 52px; align-items: center; justify-content: center; padding: 12px 21px; border: 1px solid transparent; text-decoration: none; font-size: 13px; font-weight: 800; letter-spacing: .045em; transition: transform .2s ease, background .2s ease, color .2s ease, border-color .2s ease; }
.button:hover, .button:focus-visible { transform: translateY(-2px); }
.button-primary { background: var(--ink); color: var(--white); }
.button-primary:hover, .button-primary:focus-visible { background: var(--sea); }
.button-secondary { border-color: var(--ink); color: var(--ink); }
.button-secondary:hover, .button-secondary:focus-visible { background: var(--ink); color: var(--white); }
.button-light { background: var(--white); color: var(--ink); }
.button-light:hover, .button-light:focus-visible { background: var(--paper-deep); }
.text-link { display: inline-flex; gap: 8px; align-items: center; color: var(--ink); text-decoration-color: var(--copper); text-underline-offset: 5px; font-weight: 750; }
.text-link span { transition: transform .2s ease; }
.text-link:hover span { transform: translateX(4px); }
.hero-aside { position: relative; padding: 34px 0 2px 30px; border-left: 1px solid var(--copper); }
.aside-label { margin: 0 0 6px; color: var(--copper); font-size: 11px; font-weight: 800; letter-spacing: .13em; text-transform: uppercase; }
.hero-aside h2 { margin-bottom: 14px; font-family: var(--serif); font-size: 33px; font-weight: 500; }
.hero-aside > p:not(.aside-label) { color: #53666a; }
.at-a-glance { margin: 28px 0 0; }
.at-a-glance div { display: grid; grid-template-columns: 100px 1fr; gap: 12px; padding: 11px 0; border-top: 1px solid var(--line); }
.at-a-glance dt { color: var(--muted); font-size: 12px; font-weight: 700; text-transform: uppercase; }
.at-a-glance dd { margin: 0; font-size: 14px; font-weight: 700; }
.status-strip { position: relative; display: flex; gap: 16px; align-items: flex-start; margin-top: 100px; padding: 21px 25px; background: rgba(255,253,248,.65); border: 1px solid var(--line); }
.status-strip p { margin: 0; color: #53666a; font-size: 14px; }
.status-dot { flex: 0 0 auto; width: 9px; height: 9px; margin-top: 7px; border-radius: 50%; background: var(--copper); box-shadow: 0 0 0 6px rgba(180,104,69,.12); }

.section { padding: 120px 0; }
.section-paper { background: var(--white); }
.section-mist { background: var(--mist); }
.section-ink { background: var(--ink-deep); color: #cddbd8; }
.section-heading { max-width: 790px; margin-bottom: 70px; }
.section-heading h2 { margin-bottom: 24px; font-family: var(--serif); font-size: clamp(42px, 5vw, 68px); font-weight: 500; letter-spacing: -.035em; line-height: 1.05; }
.section-heading > p:last-child { max-width: 660px; color: #5b6c6f; font-size: 19px; }
.section-heading.inverse h2 { color: var(--white); }
.section-heading.inverse > p:last-child { color: #bdcdca; }
.principles-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; background: var(--line); border: 1px solid var(--line); }
.principle { min-height: 350px; padding: 36px 34px; background: var(--white); }
.principle-number { color: var(--copper); font-family: var(--serif); font-size: 15px; }
.principle h3 { margin: 80px 0 18px; font-family: var(--serif); font-size: 27px; font-weight: 600; }
.principle p { margin: 0; color: #5c6b6e; }

.lineage-layout { display: grid; grid-template-columns: minmax(0,.9fr) minmax(0,1.1fr); gap: 80px 100px; }
.lineage-layout .section-heading { margin-bottom: 0; }
.lineage-copy { max-width: 680px; font-family: var(--serif); font-size: 20px; line-height: 1.75; }
.lineage-copy p { margin: 0 0 24px; }
.dropcap::first-letter { float: left; margin: 8px 9px 0 0; color: var(--copper); font-size: 74px; line-height: .72; }
.lineage-verdict { padding: 40px 0; border-top: 1px solid rgba(255,255,255,.18); border-bottom: 1px solid rgba(255,255,255,.18); }
.lineage-verdict p { margin: 0 0 20px; color: var(--copper); font-size: 11px; font-weight: 800; letter-spacing: .15em; text-transform: uppercase; }
.lineage-verdict strong { display: block; color: var(--white); font-family: var(--serif); font-size: clamp(38px, 4.5vw, 58px); font-weight: 500; line-height: 1.08; }
.lineage-verdict span { display: block; max-width: 480px; margin-top: 26px; color: #9eb1ae; font-size: 14px; }

.research-grid { display: grid; grid-template-columns: .8fr 1.2fr; gap: 60px 100px; }
.research-grid .section-heading { margin-bottom: 0; }
.method-list { margin: 0; padding: 0; list-style: none; border-top: 1px solid rgba(16,44,53,.28); }
.method-list li { display: grid; grid-template-columns: 55px 1fr; gap: 15px; padding: 25px 0; border-bottom: 1px solid rgba(16,44,53,.22); }
.method-list li > span { color: var(--copper); font-family: var(--serif); font-size: 15px; }
.method-list h3 { margin-bottom: 8px; font-family: var(--serif); font-size: 23px; }
.method-list p { margin: 0; color: #53676a; }
.research-note { grid-column: 2; max-width: 620px; padding: 30px; background: rgba(255,253,248,.7); border-left: 3px solid var(--copper); }
.research-note h3 { margin: 4px 0 10px; font-family: var(--serif); font-size: 28px; }
.research-note p:not(.aside-label) { color: #53676a; }

.offer-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; align-items: stretch; }
.offer-card { display: flex; flex-direction: column; padding: 44px; background: var(--paper); border: 1px solid var(--line); box-shadow: var(--shadow); }
.offer-featured { background: var(--ink); color: #c8d8d5; border-color: var(--ink); }
.offer-kicker { margin: 0 0 22px; color: var(--copper); font-size: 11px; font-weight: 800; letter-spacing: .14em; text-transform: uppercase; }
.offer-card h3 { margin-bottom: 18px; font-family: var(--serif); font-size: 36px; font-weight: 500; }
.offer-featured h3 { color: var(--white); }
.offer-card > p:not(.offer-kicker,.offer-price) { color: #5a6b6e; }
.offer-featured > p:not(.offer-kicker,.offer-price) { color: #c8d8d5; }
.offer-card ul { margin: 24px 0 30px; padding: 0; list-style: none; }
.offer-card li { padding: 9px 0 9px 25px; border-top: 1px solid var(--line); position: relative; font-size: 14px; }
.offer-featured li { border-color: rgba(255,255,255,.16); }
.offer-card li::before { content: ""; position: absolute; left: 2px; top: 18px; width: 10px; height: 1px; background: var(--copper); }
.offer-price { display: flex; align-items: baseline; justify-content: space-between; gap: 20px; margin: auto 0 28px; padding-top: 25px; border-top: 1px solid var(--line); }
.offer-featured .offer-price { border-color: rgba(255,255,255,.16); }
.offer-price span { max-width: 160px; color: var(--muted); font-size: 12px; font-weight: 700; line-height: 1.4; text-transform: uppercase; }
.offer-featured .offer-price span { color: #9fb2af; }
.offer-price strong { color: var(--ink); font-family: var(--serif); font-size: 42px; font-weight: 500; }
.offer-featured .offer-price strong { color: var(--white); }
.offer-disclaimer { max-width: 780px; margin: 25px auto 0; color: var(--muted); font-size: 13px; text-align: center; }

.safety-section { background: var(--sea); color: #d6e2df; }
.safety-grid { display: grid; grid-template-columns: 120px .9fr 1.1fr; gap: 50px; align-items: center; }
.safety-grid .section-heading { margin: 0; }
.safety-mark { position: relative; width: 105px; height: 105px; display: grid; place-items: center; border: 1px solid rgba(255,255,255,.45); border-radius: 50%; }
.safety-mark::before, .safety-mark::after { content: ""; position: absolute; background: var(--white); }
.safety-mark::before { width: 46px; height: 1px; }
.safety-mark::after { width: 1px; height: 46px; }
.safety-copy { padding-left: 45px; border-left: 1px solid rgba(255,255,255,.25); font-family: var(--serif); font-size: 19px; }

.faq-layout { display: grid; grid-template-columns: .72fr 1.28fr; gap: 80px; }
.faq-layout .section-heading { margin: 0; }
.faq-list { border-top: 1px solid rgba(16,44,53,.28); }
.faq-list details { border-bottom: 1px solid rgba(16,44,53,.25); }
.faq-list summary { position: relative; padding: 24px 52px 24px 0; cursor: pointer; list-style: none; color: var(--ink); font-family: var(--serif); font-size: 21px; font-weight: 600; }
.faq-list summary::-webkit-details-marker { display: none; }
.faq-list summary::after { content: "+"; position: absolute; right: 10px; top: 20px; color: var(--copper); font-family: var(--sans); font-size: 27px; font-weight: 300; transition: transform .2s ease; }
.faq-list details[open] summary::after { transform: rotate(45deg); }
.faq-list details p { margin: -4px 45px 24px 0; color: #56686b; }

.contact-section { padding: 110px 0; background: var(--ink); color: #c9d7d4; }
.contact-grid { display: grid; grid-template-columns: .8fr 1.2fr; gap: 80px; align-items: center; }
.contact-grid h2 { color: var(--white); font-family: var(--serif); font-size: clamp(45px, 6vw, 74px); font-weight: 500; letter-spacing: -.04em; line-height: 1; }
.contact-copy { max-width: 650px; }
.contact-copy > p:first-child { margin: 0 0 30px; font-family: var(--serif); font-size: 21px; }
.contact-email { margin: 20px 0 0; color: #91a7a3; font-size: 12px; }
.contact-email a { text-underline-offset: 3px; }
.site-footer { padding: 48px 0; background: var(--ink-deep); color: #829793; }
.footer-grid { display: grid; grid-template-columns: 1fr 1fr 1.25fr; gap: 40px; align-items: center; }
.footer-wordmark { color: var(--white); }
.footer-grid p { margin: 0; font-size: 12px; line-height: 1.6; }

.reveal { opacity: 0; transform: translateY(18px); transition: opacity .7s ease, transform .7s ease; }
.reveal.is-visible { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition-duration: .01ms !important; animation-duration: .01ms !important; }
  .reveal { opacity: 1; transform: none; }
}

@media (max-width: 980px) {
  :root { --shell: min(100% - 36px, 760px); }
  .nav-toggle { display: block; cursor: pointer; }
  .primary-nav { position: absolute; left: 0; right: 0; top: 81px; display: none; padding: 24px 20px 30px; background: var(--paper); border-bottom: 1px solid var(--line); box-shadow: 0 20px 30px rgba(9,29,36,.08); }
  .primary-nav.open { display: grid; }
  .primary-nav a { font-size: 15px; }
  .nav-cta { text-align: center; }
  .hero { padding-top: 145px; min-height: auto; }
  .hero-grid, .lineage-layout, .research-grid, .faq-layout, .contact-grid { grid-template-columns: 1fr; gap: 45px; }
  .hero-aside { max-width: 520px; }
  .status-strip { margin-top: 65px; }
  .principles-grid { grid-template-columns: 1fr; }
  .principle { min-height: 0; }
  .principle h3 { margin-top: 40px; }
  .research-note { grid-column: auto; }
  .safety-grid { grid-template-columns: 95px 1fr; }
  .safety-copy { grid-column: 2; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .footer-grid p:last-child { grid-column: 1 / -1; }
}

@media (max-width: 660px) {
  :root { --shell: calc(100% - 28px); }
  body { font-size: 16px; }
  .header-inner { min-height: 70px; }
  .primary-nav { top: 69px; }
  .hero { padding-top: 120px; }
  h1 { font-size: clamp(50px, 16vw, 70px); }
  .hero-actions { align-items: stretch; flex-direction: column; }
  .hero-actions .button { width: 100%; }
  .hero-aside { padding-left: 20px; }
  .section { padding: 80px 0; }
  .section-heading { margin-bottom: 45px; }
  .section-heading h2 { font-size: 42px; }
  .lineage-layout { gap: 35px; }
  .lineage-copy { font-size: 18px; }
  .offer-grid { grid-template-columns: 1fr; }
  .offer-card { padding: 30px 24px; }
  .offer-price { align-items: flex-start; flex-direction: column; gap: 4px; }
  .safety-grid { grid-template-columns: 1fr; }
  .safety-mark { width: 78px; height: 78px; }
  .safety-copy { grid-column: auto; padding: 25px 0 0; border-left: 0; border-top: 1px solid rgba(255,255,255,.25); }
  .contact-grid { gap: 18px; }
  .footer-grid { grid-template-columns: 1fr; }
  .footer-grid p:last-child { grid-column: auto; }
}