/* Biozyng — living systems observatory */
:root {
  --ink: #101624;
  --ink-soft: #1a2233;
  --bone: #f3f1e7;
  --paper: #fbfaf5;
  --lime: #d7ff3f;
  --coral: #ff6e5d;
  --teal: #66d8c5;
  --line: rgba(16, 22, 36, 0.16);
  --muted: #596071;
  --shell: min(1240px, calc(100% - 40px));
  --shadow: 0 24px 70px rgba(16, 22, 36, 0.16);
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: "Manrope", Arial, sans-serif;
  font-size: 16px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
body::before {
  position: fixed;
  inset: 0;
  z-index: 10000;
  pointer-events: none;
  content: "";
  opacity: .035;
  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='.9' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='.8'/%3E%3C/svg%3E");
}
img { max-width: 100%; display: block; }
a { color: inherit; }
button, input, select, textarea { font: inherit; }
button, a { -webkit-tap-highlight-color: transparent; }
::selection { color: var(--ink); background: var(--lime); }

.shell { width: var(--shell); margin-inline: auto; }
.section-pad { padding-block: clamp(84px, 11vw, 160px); }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; }
.skip-link { position: fixed; z-index: 11000; top: 12px; left: 12px; padding: 12px 16px; color: var(--ink); background: var(--lime); transform: translateY(-150%); transition: transform .2s; }
.skip-link:focus { transform: translateY(0); }
.mono { font-family: "DM Mono", monospace; letter-spacing: .03em; }

/* Domain sale banner */
.domain-sale-banner {
  position: relative;
  z-index: 9999;
  width: 100%;
  color: #fff;
  background: radial-gradient(circle at 13% 44%, rgba(215, 255, 63, .18), transparent 30%), linear-gradient(106deg, #0c1220 0%, #172232 58%, #173229 100%);
  border-bottom: 1px solid rgba(215, 255, 63, .25);
  box-shadow: 0 8px 28px rgba(0, 0, 0, .18);
  font-family: "Manrope", Arial, sans-serif;
}
.domain-sale-banner__content {
  width: min(1180px, calc(100% - 32px));
  min-height: 76px;
  margin: 0 auto;
  padding: 12px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.domain-sale-banner__text { display: grid; gap: 3px; line-height: 1.35; }
.domain-sale-banner__text strong { font-size: clamp(1rem, 2vw, 1.18rem); letter-spacing: -.02em; }
.domain-sale-banner__text span { color: rgba(255, 255, 255, .7); font-size: .9rem; }
.domain-sale-banner__button {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  min-height: 46px;
  padding: 0 20px;
  color: var(--ink);
  background: var(--lime);
  border: 1px solid #e4ff77;
  border-radius: 2px;
  box-shadow: 0 8px 22px rgba(215, 255, 63, .18);
  font-size: .86rem;
  font-weight: 800;
  letter-spacing: .02em;
  text-decoration: none;
  transition: transform 160ms ease, background 160ms ease, box-shadow 160ms ease;
}
.domain-sale-banner__button:hover, .domain-sale-banner__button:focus-visible { background: #e5ff7c; box-shadow: 0 10px 28px rgba(215, 255, 63, .3); transform: translateY(-2px); outline: none; }

/* Header and navigation */
.site-header { position: relative; z-index: 100; color: var(--ink); border-bottom: 1px solid var(--line); background: rgba(251, 250, 245, .86); backdrop-filter: blur(18px); }
.site-header--dark { color: var(--bone); background: var(--ink); border-color: rgba(255,255,255,.12); }
.nav-shell { min-height: 88px; display: flex; align-items: center; justify-content: space-between; }
.brand { display: inline-flex; align-items: center; gap: 11px; color: inherit; text-decoration: none; font-size: 1.3rem; font-weight: 800; letter-spacing: -.045em; }
.brand img { width: 42px; height: 42px; border-radius: 11px; }
.brand sup { margin-left: 2px; color: var(--coral); font-family: "DM Mono", monospace; font-size: .4em; vertical-align: top; }
.site-nav { display: flex; align-items: center; gap: 34px; font-size: .82rem; font-weight: 700; }
.site-nav a { position: relative; text-decoration: none; }
.site-nav a:not(.nav-offer)::after { position: absolute; right: 0; bottom: -8px; left: 0; height: 2px; content: ""; background: var(--coral); transform: scaleX(0); transform-origin: right; transition: transform .25s; }
.site-nav a:hover::after, .site-nav a:focus-visible::after, .site-nav a.is-current::after { transform: scaleX(1); transform-origin: left; }
.nav-offer { padding: 10px 15px; border: 1px solid currentColor; transition: color .2s, background .2s; }
.nav-offer:hover, .nav-offer:focus-visible { color: var(--bone); background: var(--ink); outline: none; }
.site-header--dark .nav-offer:hover { color: var(--ink); background: var(--lime); }
.nav-toggle { display: none; width: 48px; height: 48px; padding: 0; border: 1px solid var(--line); background: transparent; }
.nav-toggle > span:not(.sr-only) { display: block; width: 20px; height: 2px; margin: 6px auto; background: currentColor; transition: transform .25s; }

/* Shared type and controls */
.eyebrow { display: flex; align-items: center; gap: 10px; margin: 0 0 22px; font-family: "DM Mono", monospace; font-size: .72rem; font-weight: 500; letter-spacing: .1em; text-transform: uppercase; }
.eyebrow::before { width: 26px; height: 1px; content: ""; background: currentColor; }
.eyebrow span { color: inherit; }
h1, h2, h3, p { margin-top: 0; }
h1, h2 { font-weight: 600; line-height: .96; letter-spacing: -.055em; }
h1 em, h2 em { color: var(--coral); font-family: "Instrument Serif", Georgia, serif; font-weight: 400; }
h2 { margin-bottom: 30px; font-size: clamp(3rem, 6.5vw, 6.4rem); }
.button { display: inline-flex; min-height: 54px; align-items: center; justify-content: center; gap: 26px; padding: 0 22px; border: 1px solid transparent; text-decoration: none; font-size: .83rem; font-weight: 800; transition: transform .2s, color .2s, background .2s, box-shadow .2s; }
.button:hover, .button:focus-visible { transform: translateY(-3px); outline: none; }
.button-primary { color: var(--ink); background: var(--lime); box-shadow: 8px 8px 0 rgba(16, 22, 36, .13); }
.button-primary:hover, .button-primary:focus-visible { background: #e4ff75; box-shadow: 11px 11px 0 rgba(16, 22, 36, .18); }
.button-dark { color: var(--bone); background: var(--ink); }
.button-dark:hover, .button-dark:focus-visible { color: var(--ink); background: var(--lime); }
.text-link { display: inline-flex; align-items: center; gap: 14px; padding-block: 8px; border-bottom: 1px solid; text-decoration: none; font-size: .84rem; font-weight: 800; }
.text-link:hover span { transform: translateY(3px); }
.text-link span { transition: transform .2s; }
.text-link--light { color: var(--bone); }

/* Home hero */
.hero { position: relative; min-height: 720px; padding-block: clamp(70px, 9vw, 125px) 70px; display: grid; grid-template-columns: minmax(0, .92fr) minmax(420px, 1.08fr); gap: clamp(35px, 7vw, 92px); align-items: center; }
.hero::before { position: absolute; top: 0; bottom: 0; left: 46%; width: 1px; content: ""; background: var(--line); }
.hero-copy { position: relative; z-index: 2; }
.hero h1 { margin-bottom: 32px; font-size: clamp(4.6rem, 8.1vw, 8.7rem); }
.hero-lede { max-width: 590px; margin-bottom: 38px; color: var(--muted); font-size: clamp(1rem, 1.4vw, 1.22rem); line-height: 1.75; }
.hero-actions { display: flex; align-items: center; gap: 28px; flex-wrap: wrap; }
.hero-visual { position: relative; align-self: stretch; min-height: 560px; background: var(--ink); overflow: hidden; box-shadow: var(--shadow); }
.hero-visual::after { position: absolute; inset: 0; content: ""; background: linear-gradient(90deg, rgba(16,22,36,.35), transparent 35%); pointer-events: none; }
.hero-visual > img { width: 100%; height: 100%; object-fit: cover; }
.hero-orbit { position: absolute; z-index: 2; top: 24px; left: 22px; display: flex; gap: 6px; }
.hero-orbit span { padding: 5px 8px; color: var(--bone); background: rgba(16,22,36,.68); border: 1px solid rgba(255,255,255,.25); backdrop-filter: blur(8px); font-family: "DM Mono", monospace; font-size: .55rem; text-transform: uppercase; letter-spacing: .07em; }
.image-label { position: absolute; z-index: 2; right: 18px; bottom: 17px; margin: 0; color: rgba(255,255,255,.75); font-family: "DM Mono", monospace; font-size: .56rem; letter-spacing: .08em; text-transform: uppercase; writing-mode: vertical-rl; }
.hero-note { position: absolute; z-index: 3; right: -20px; bottom: 30px; width: min(355px, 40%); padding: 18px 20px; display: flex; gap: 12px; color: var(--bone); background: var(--ink); border-left: 4px solid var(--coral); box-shadow: var(--shadow); }
.hero-note p { margin: 0; font-size: .73rem; line-height: 1.55; }
.hero-note strong { display: block; color: var(--lime); }
.pulse { flex: 0 0 8px; width: 8px; height: 8px; margin-top: 5px; border-radius: 50%; background: var(--coral); box-shadow: 0 0 0 0 rgba(255,110,93,.5); animation: pulse 2s infinite; }
@keyframes pulse { 70% { box-shadow: 0 0 0 9px rgba(255,110,93,0); } 100% { box-shadow: 0 0 0 0 rgba(255,110,93,0); } }

/* Frontiers */
.possibilities { color: var(--bone); background: var(--ink); }
.section-intro { max-width: 850px; margin-bottom: 65px; }
.section-intro > p:last-child { max-width: 640px; color: var(--muted); font-size: 1.04rem; }
.possibilities .section-intro > p:last-child { color: rgba(243,241,231,.58); }
.frontier-grid { display: grid; grid-template-columns: repeat(12, 1fr); gap: 12px; }
.frontier-card { position: relative; min-height: 480px; padding: 34px; display: flex; flex-direction: column; overflow: hidden; transition: transform .3s; }
.frontier-card:hover { transform: translateY(-7px); }
.frontier-card:nth-child(1) { grid-column: span 4; }
.frontier-card:nth-child(2) { grid-column: span 4; margin-top: 52px; }
.frontier-card:nth-child(3) { grid-column: span 4; }
.frontier-card--lime { color: var(--ink); background: var(--lime); }
.frontier-card--coral { color: var(--ink); background: var(--coral); }
.frontier-card--bone { color: var(--ink); background: var(--bone); }
.frontier-card svg { width: 110px; height: 110px; margin: 45px auto auto; fill: none; stroke: currentColor; stroke-width: 2; }
.frontier-card h3 { margin-bottom: 15px; font-size: 1.5rem; line-height: 1.1; letter-spacing: -.04em; }
.frontier-card p { margin-bottom: 26px; font-size: .86rem; line-height: 1.7; }
.card-index { position: absolute; top: 22px; right: 26px; font-family: "Instrument Serif", serif; font-size: 3.6rem; font-style: italic; opacity: .35; }
.card-tag { align-self: flex-start; padding: 5px 8px; border: 1px solid; font-family: "DM Mono", monospace; font-size: .59rem; letter-spacing: .08em; text-transform: uppercase; }

/* Name equation */
.name-system { color: var(--bone); background: #172331; }
.name-grid { display: grid; grid-template-columns: .7fr 1.3fr; gap: clamp(50px, 9vw, 130px); align-items: center; }
.name-copy h2 { font-size: clamp(3.5rem, 7vw, 7rem); }
.name-copy > p:not(.eyebrow) { max-width: 460px; color: rgba(243,241,231,.6); }
.word-equation { display: grid; grid-template-columns: 1fr auto 1fr; gap: 22px; align-items: center; }
.word-equation > div { min-height: 190px; padding: 25px; display: flex; flex-direction: column; justify-content: space-between; color: var(--ink); background: var(--bone); border-top: 5px solid var(--lime); }
.word-equation > b { color: var(--coral); font-size: 2rem; }
.word-equation .mono { font-size: clamp(1.5rem, 3vw, 2.8rem); }
.word-equation small { color: var(--muted); font-size: .68rem; }
.word-equation .equation-result { grid-column: 1 / -1; min-height: 160px; color: var(--ink); background: var(--coral); border-top-color: var(--bone); transform: rotate(-1.5deg); }

/* Signal */
.signal-section { background: var(--bone); }
.signal-grid { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(55px, 10vw, 140px); align-items: center; }
.signal-graphic { position: relative; min-height: 570px; display: grid; place-items: center; color: var(--bone); background: var(--ink); overflow: hidden; }
.signal-graphic > p { position: relative; z-index: 2; margin: 0; font-family: "DM Mono", monospace; font-size: 1rem; text-align: center; }
.signal-rings span { position: absolute; top: 50%; left: 50%; border: 1px solid rgba(215,255,63,.45); border-radius: 50%; transform: translate(-50%,-50%); animation: breathe 4s ease-in-out infinite; }
.signal-rings span:nth-child(1) { width: 140px; height: 140px; }
.signal-rings span:nth-child(2) { width: 270px; height: 270px; animation-delay: .5s; }
.signal-rings span:nth-child(3) { width: 420px; height: 420px; animation-delay: 1s; }
.signal-rings i { position: absolute; top: 12%; right: 11%; width: 55px; height: 55px; border-radius: 50%; background: var(--coral); box-shadow: 0 0 50px rgba(255,110,93,.75); }
@keyframes breathe { 50% { opacity: .35; transform: translate(-50%,-50%) scale(1.04); } }
.signal-copy h2 { font-size: clamp(3.2rem, 6vw, 6.2rem); }
.signal-list { margin: 45px 0 0; padding: 0; list-style: none; border-top: 1px solid var(--line); }
.signal-list li { padding-block: 22px; display: grid; grid-template-columns: 50px 1fr; gap: 18px; border-bottom: 1px solid var(--line); }
.signal-list li > span { color: var(--coral); font-family: "DM Mono", monospace; font-size: .7rem; }
.signal-list strong { font-size: .95rem; }
.signal-list p { margin: 3px 0 0; color: var(--muted); font-size: .82rem; }

/* CTA and footer */
.acquire-section { padding-block: clamp(100px, 14vw, 185px); color: var(--ink); background: var(--lime); }
.acquire-section--coral { background: var(--coral); }
.acquire-inner { text-align: center; }
.acquire-inner .eyebrow { justify-content: center; }
.acquire-inner h2 { margin-inline: auto; font-size: clamp(3.8rem, 8.6vw, 9rem); }
.acquire-inner h2 em { color: var(--ink); }
.acquire-inner > p:not(.eyebrow) { max-width: 580px; margin: 0 auto 36px; }
.site-footer { padding-block: 70px 38px; color: var(--bone); background: var(--ink); }
.footer-grid { display: grid; grid-template-columns: 1.2fr .8fr 1fr; gap: 70px; align-items: end; }
.brand--footer img { width: 38px; height: 38px; }
.footer-grid > div:first-child > p { margin: 12px 0 0; color: rgba(243,241,231,.5); font-size: .75rem; }
.site-footer nav { display: grid; grid-template-columns: 1fr 1fr; gap: 9px 28px; }
.site-footer nav a { color: rgba(243,241,231,.75); font-size: .75rem; text-decoration: none; }
.site-footer nav a:hover { color: var(--lime); }
.footer-meta { text-align: right; }
.footer-meta p { margin: 5px 0; color: rgba(243,241,231,.5); font-family: "DM Mono", monospace; font-size: .63rem; letter-spacing: .05em; text-transform: uppercase; }

/* Interior page hero */
.page-hero { min-height: 630px; padding-block: 70px 100px; display: grid; grid-template-columns: 120px 1.35fr .65fr; gap: 45px; align-items: end; border-bottom: 1px solid var(--line); }
.page-hero__index { align-self: start; color: var(--muted); font-size: .62rem; writing-mode: vertical-rl; }
.page-hero h1 { margin: 0; font-size: clamp(5rem, 10vw, 10rem); }
.page-hero__copy { max-width: 410px; padding-bottom: 14px; color: var(--muted); font-size: 1.07rem; }

/* About page */
.about-manifesto { background: var(--bone); }
.manifesto-grid { display: grid; grid-template-columns: .7fr 1.3fr; gap: clamp(60px, 11vw, 160px); align-items: center; }
.manifesto-stamp { aspect-ratio: 1; display: grid; place-content: center; color: var(--bone); background: var(--ink); border-radius: 50%; text-align: center; box-shadow: inset 0 0 0 30px var(--ink), inset 0 0 0 32px rgba(215,255,63,.7); }
.manifesto-stamp span { color: var(--lime); font-family: "Instrument Serif", serif; font-size: clamp(6rem, 11vw, 10rem); font-style: italic; line-height: .8; }
.manifesto-stamp small { margin-top: 20px; font-family: "DM Mono", monospace; font-size: .58rem; letter-spacing: .1em; text-transform: uppercase; }
.manifesto-copy h2 { font-size: clamp(3.7rem, 7vw, 7rem); }
.manifesto-copy .large-copy { color: var(--ink); font-size: clamp(1.25rem, 2vw, 1.85rem); line-height: 1.5; }
.manifesto-copy > p:last-child { color: var(--muted); }
.fit-section { color: var(--bone); background: var(--ink); }
.fit-table { border-top: 1px solid rgba(255,255,255,.2); }
.fit-row { padding-block: 30px; display: grid; grid-template-columns: 60px 1fr 1.5fr .8fr; gap: 25px; align-items: center; border-bottom: 1px solid rgba(255,255,255,.2); }
.fit-row > span { color: var(--coral); font-size: .67rem; }
.fit-row h3 { margin: 0; font-size: 1.25rem; letter-spacing: -.03em; }
.fit-row p { margin: 0; color: rgba(243,241,231,.58); font-size: .8rem; }
.fit-row strong { justify-self: end; padding: 5px 8px; color: var(--lime); border: 1px solid rgba(215,255,63,.45); font-family: "DM Mono", monospace; font-size: .58rem; letter-spacing: .05em; text-transform: uppercase; }
.principles { background: var(--paper); }
.principles-grid { display: grid; grid-template-columns: .65fr 1.35fr; gap: clamp(50px, 9vw, 130px); }
.principles-title h2 { font-size: clamp(3.4rem, 6vw, 5.8rem); }
.principle-cards { display: grid; gap: 10px; }
.principle { min-height: 180px; padding: 28px; display: grid; grid-template-columns: 70px 1fr 1.2fr; align-items: center; gap: 20px; border: 1px solid var(--line); transition: color .25s, background .25s, transform .25s; }
.principle:hover { color: var(--bone); background: var(--ink); transform: translateX(-8px); }
.principle > span { color: var(--coral); font-family: "DM Mono", monospace; font-size: .68rem; }
.principle h3 { margin: 0; font-size: 1.35rem; letter-spacing: -.04em; }
.principle p { margin: 0; color: var(--muted); font-size: .8rem; }
.principle:hover p { color: rgba(243,241,231,.6); }

/* Contact page */
.contact-main { padding-block: clamp(70px, 8vw, 115px); background: var(--bone); }
.contact-layout { display: grid; grid-template-columns: .9fr 1.1fr; gap: clamp(55px, 9vw, 120px); align-items: start; }
.contact-intro { position: sticky; top: 40px; }
.contact-intro h1 { margin-bottom: 34px; font-size: clamp(4.6rem, 8vw, 8rem); }
.contact-intro > p:not(.eyebrow) { max-width: 550px; margin-bottom: 32px; color: var(--muted); font-size: 1rem; }
.contact-details { margin-top: 55px; display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.contact-details > div { padding-top: 18px; border-top: 1px solid var(--line); }
.contact-details span { color: var(--coral); font-size: .6rem; }
.contact-details p, .contact-details a { margin: 8px 0 0; color: var(--ink); font-size: .76rem; }
.contact-panel { color: var(--bone); background: var(--ink); box-shadow: var(--shadow); }
.panel-top { padding: 14px 20px; display: flex; align-items: center; justify-content: space-between; border-bottom: 1px solid rgba(255,255,255,.15); font-family: "DM Mono", monospace; font-size: .6rem; letter-spacing: .08em; text-transform: uppercase; }
.panel-top i { width: 8px; height: 8px; border-radius: 50%; background: var(--lime); box-shadow: 0 0 12px var(--lime); }
.contact-form { padding: clamp(25px, 5vw, 55px); }
.form-row { margin-bottom: 27px; }
.form-row label { display: block; margin-bottom: 8px; color: rgba(243,241,231,.68); font-family: "DM Mono", monospace; font-size: .62rem; letter-spacing: .06em; text-transform: uppercase; }
.form-row label span { color: var(--coral); }
.form-row input, .form-row select, .form-row textarea { width: 100%; padding: 12px 0; color: var(--bone); background: transparent; border: 0; border-bottom: 1px solid rgba(243,241,231,.3); border-radius: 0; outline: none; transition: border-color .2s; }
.form-row select { color-scheme: dark; }
.form-row textarea { resize: vertical; }
.form-row input:focus, .form-row select:focus, .form-row textarea:focus { border-color: var(--lime); }
.form-row .is-invalid { border-color: var(--coral); }
.consent { margin: 10px 0 28px; display: flex; gap: 10px; align-items: flex-start; color: rgba(243,241,231,.6); font-size: .72rem; }
.consent input { margin-top: 4px; accent-color: var(--lime); }
.button-submit { width: 100%; color: var(--ink); background: var(--lime); border: 0; cursor: pointer; }
.button-submit:hover { background: #e5ff78; }
.form-status { min-height: 23px; margin: 14px 0 0; color: var(--coral); font-size: .75rem; }
.form-note { margin: 5px 0 0; color: rgba(243,241,231,.4); font-size: .65rem; line-height: 1.5; }

/* 404 */
.error-page { min-height: 100vh; display: flex; flex-direction: column; color: var(--bone); background: var(--ink); }
.error-nav a { color: var(--lime); font-family: "DM Mono", monospace; font-size: .65rem; letter-spacing: .08em; text-decoration: none; text-transform: uppercase; }
.error-main { flex: 1; padding-block: 70px; display: grid; grid-template-columns: 1.15fr .85fr; gap: 80px; align-items: center; }
.error-code { position: relative; display: flex; align-items: center; justify-content: center; font-family: "Instrument Serif", serif; font-size: clamp(10rem, 24vw, 24rem); font-style: italic; line-height: .7; }
.error-code i { width: clamp(80px, 12vw, 180px); aspect-ratio: 1; border: clamp(13px, 2vw, 28px) solid var(--lime); border-top-color: var(--coral); border-radius: 50%; animation: spin 9s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }
.error-copy h1 { font-size: clamp(3.5rem, 6vw, 6.2rem); }
.error-copy > p:not(.eyebrow) { margin-bottom: 30px; color: rgba(243,241,231,.58); }
.error-footer { padding-block: 24px; display: flex; justify-content: space-between; border-top: 1px solid rgba(255,255,255,.15); color: rgba(243,241,231,.5); font-size: .65rem; }

/* Scroll reveal */
.reveal { opacity: 0; transform: translateY(24px); transition: opacity .7s ease, transform .7s ease; }
.reveal[data-delay="1"] { transition-delay: .12s; }
.reveal[data-delay="2"] { transition-delay: .24s; }
.reveal.is-visible { opacity: 1; transform: translateY(0); }

@media (max-width: 1040px) {
  .hero { grid-template-columns: 1fr 1fr; gap: 35px; }
  .hero h1 { font-size: clamp(4rem, 8vw, 6.6rem); }
  .hero-visual { min-height: 500px; }
  .name-grid, .principles-grid { grid-template-columns: 1fr; }
  .word-equation { max-width: 800px; }
  .page-hero { grid-template-columns: 70px 1fr; }
  .page-hero__copy { grid-column: 2; }
  .fit-row { grid-template-columns: 45px .85fr 1.4fr; }
  .fit-row strong { grid-column: 2; justify-self: start; }
  .contact-layout { gap: 50px; }
}

@media (max-width: 820px) {
  :root { --shell: min(100% - 30px, 720px); }
  .nav-shell { min-height: 74px; }
  .nav-toggle { display: block; }
  .nav-toggle[aria-expanded="true"] > span:nth-child(2) { transform: translateY(4px) rotate(45deg); }
  .nav-toggle[aria-expanded="true"] > span:nth-child(3) { transform: translateY(-4px) rotate(-45deg); }
  .site-nav { position: absolute; top: 100%; right: 0; left: 0; padding: 26px max(20px, calc((100% - 720px)/2)); display: grid; gap: 0; color: var(--bone); background: var(--ink); border-top: 1px solid rgba(255,255,255,.12); transform: scaleY(0); transform-origin: top; opacity: 0; pointer-events: none; transition: transform .25s, opacity .2s; }
  .site-nav.is-open { transform: scaleY(1); opacity: 1; pointer-events: auto; }
  .site-nav a { padding: 14px 0; border-bottom: 1px solid rgba(255,255,255,.13); }
  .site-nav a::after { display: none; }
  .nav-offer { margin-top: 15px; padding-inline: 14px !important; color: var(--ink); background: var(--lime); border: 0 !important; text-align: center; }
  .hero { padding-top: 70px; grid-template-columns: 1fr; }
  .hero::before { display: none; }
  .hero-copy { max-width: 680px; }
  .hero-visual { min-height: 520px; }
  .hero-note { right: 12px; bottom: 18px; width: min(390px, 74%); }
  .frontier-grid { grid-template-columns: 1fr; }
  .frontier-card:nth-child(n) { grid-column: auto; margin-top: 0; min-height: 410px; }
  .signal-grid, .manifesto-grid, .contact-layout, .error-main { grid-template-columns: 1fr; }
  .signal-graphic { min-height: 480px; }
  .manifesto-stamp { max-width: 480px; }
  .contact-intro { position: static; }
  .contact-panel { max-width: 680px; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .footer-meta { grid-column: 1 / -1; text-align: left; }
  .error-main { gap: 35px; }
  .error-code { justify-content: flex-start; font-size: clamp(9rem, 44vw, 18rem); }
}

@media (max-width: 680px) {
  .domain-sale-banner__content { min-height: auto; padding: 14px 0; align-items: stretch; flex-direction: column; gap: 12px; }
  .domain-sale-banner__button { width: 100%; }
  h2 { font-size: clamp(2.8rem, 14vw, 4.5rem); }
  .hero { padding-top: 55px; }
  .hero h1 { font-size: clamp(3.8rem, 18vw, 6rem); }
  .hero-actions { align-items: stretch; flex-direction: column; }
  .hero-actions .button { width: 100%; }
  .hero-actions .text-link { align-self: flex-start; }
  .hero-visual { min-height: 410px; }
  .hero-visual > img { object-position: 61% center; }
  .hero-note { position: relative; right: auto; bottom: auto; width: 100%; margin-top: -25px; }
  .word-equation { grid-template-columns: 1fr; }
  .word-equation > b { text-align: center; }
  .word-equation .equation-result { grid-column: auto; }
  .signal-graphic { min-height: 370px; }
  .signal-rings span:nth-child(3) { width: 310px; height: 310px; }
  .page-hero { min-height: 560px; padding-block: 50px 70px; grid-template-columns: 1fr; gap: 24px; }
  .page-hero__index { display: none; }
  .page-hero__copy { grid-column: auto; }
  .page-hero h1 { font-size: clamp(4.2rem, 20vw, 7rem); }
  .fit-row { grid-template-columns: 34px 1fr; }
  .fit-row p { grid-column: 2; }
  .fit-row strong { grid-column: 2; }
  .principle { grid-template-columns: 35px 1fr; }
  .principle p { grid-column: 2; }
  .contact-details, .footer-grid { grid-template-columns: 1fr; }
  .footer-meta { grid-column: auto; }
  .site-footer nav { max-width: 320px; }
  .error-code { font-size: clamp(8rem, 42vw, 12rem); }
  .error-code i { width: 80px; border-width: 13px; }
}

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