:root {
  --ink: #071526;
  --ink-soft: #112942;
  --blue: #149fe3;
  --blue-bright: #4bc4f5;
  --blue-pale: #d9f2ff;
  --paper: #f4f2eb;
  --paper-bright: #fbfaf6;
  --line: rgba(7, 21, 38, 0.16);
  --muted: #5b6671;
  --white: #fff;
  --lime: #d6f463;
  --header-height: 82px;
  --page-pad: clamp(22px, 4vw, 72px);
  --max: 1440px;
  --serif: "Iowan Old Style", "Palatino Linotype", Palatino, Georgia, serif;
  --sans: Inter, Avenir, "Avenir Next", "Segoe UI", Helvetica, Arial, sans-serif;
}

* { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-height) + 18px);
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: var(--sans);
  font-size: 17px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 999;
  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='.82' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='.7'/%3E%3C/svg%3E");
}

img, svg { display: block; max-width: 100%; }
a { color: inherit; }
button, a { -webkit-tap-highlight-color: transparent; }

.skip-link {
  position: fixed;
  z-index: 1200;
  left: 16px;
  top: -60px;
  padding: 10px 16px;
  background: var(--white);
  color: var(--ink);
  transition: top .2s ease;
}

.skip-link:focus { top: 12px; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--header-height);
  padding: 0 var(--page-pad);
  display: grid;
  grid-template-columns: 200px 1fr auto;
  align-items: center;
  border-bottom: 1px solid rgba(255,255,255,.14);
  background: rgba(7, 21, 38, .94);
  color: var(--white);
  backdrop-filter: blur(18px);
}

.site-header::after {
  content: "";
  position: absolute;
  bottom: -1px;
  left: var(--page-pad);
  width: clamp(64px, 9vw, 140px);
  height: 2px;
  background: var(--blue-bright);
}

.brand { width: max-content; height: 58px; display: flex; align-items: center; gap: 9px; text-decoration: none; }
.brand img { width: 33px; height: 33px; object-fit: contain; opacity: .96; }
.brand > span { display: flex; flex-direction: column; }
.brand strong { font: 400 1.46rem/.88 var(--serif); letter-spacing: -.03em; }
.brand small { margin-top: 5px; color: rgba(255,255,255,.54); font-size: .47rem; font-weight: 750; letter-spacing: .14em; text-transform: uppercase; }

.main-nav { display: flex; justify-content: center; align-items: center; gap: clamp(18px, 3vw, 48px); }
.main-nav a, .footer-links a {
  text-decoration: none;
  font-size: .75rem;
  font-weight: 750;
  letter-spacing: .1em;
  text-transform: uppercase;
  position: relative;
}
.main-nav a::after, .footer-links a::after {
  content: "";
  position: absolute;
  left: 0;
  right: 100%;
  bottom: -7px;
  height: 1px;
  background: var(--blue-bright);
  transition: right .25s ease;
}
.main-nav a:hover::after, .main-nav a:focus-visible::after,
.footer-links a:hover::after, .footer-links a:focus-visible::after { right: 0; }

.header-actions { display: flex; align-items: center; gap: 18px; }

.language-switcher {
  display: flex;
  border: 1px solid rgba(255,255,255,.25);
  border-radius: 999px;
  padding: 3px;
}
.language-switcher button {
  border: 0;
  background: transparent;
  color: rgba(255,255,255,.6);
  border-radius: 999px;
  padding: 5px 9px;
  font: 750 .68rem/1 var(--sans);
  cursor: pointer;
}
.language-switcher button[aria-pressed="true"] { background: var(--white); color: var(--ink); }

.menu-toggle, .mobile-nav { display: none; }

.hero {
  min-height: calc(100svh - var(--header-height));
  max-width: var(--max);
  margin: 0 auto;
  display: grid;
  grid-template-columns: minmax(0, .93fr) minmax(440px, .77fr);
  background: var(--paper-bright);
  border-left: 1px solid var(--line);
  border-right: 1px solid var(--line);
}
.hero > *, .open-source > * { min-width: 0; }

.hero-copy {
  padding: clamp(70px, 8vw, 130px) clamp(36px, 6vw, 94px) 70px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.release-pill {
  width: fit-content;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 14px 8px 10px;
  border: 1px solid var(--line);
  border-radius: 999px;
  font-size: .7rem;
  font-weight: 800;
  letter-spacing: .09em;
  text-transform: uppercase;
}
.pulse { width: 10px; height: 10px; border-radius: 50%; background: var(--blue); box-shadow: 0 0 0 5px rgba(20,159,227,.12); }

.eyebrow {
  margin: 34px 0 20px;
  color: #2878a7;
  font-size: .72rem;
  font-weight: 850;
  letter-spacing: .2em;
  text-transform: uppercase;
}
.eyebrow.light { color: var(--blue-bright); }

h1, h2, h3, p { margin-top: 0; }
h1, h2, h3 { overflow-wrap: break-word; hyphens: auto; }

h1 {
  margin-bottom: 30px;
  font-family: var(--serif);
  font-size: clamp(3.4rem, 6.2vw, 6.8rem);
  font-weight: 400;
  line-height: .88;
  letter-spacing: -.055em;
}
h1 span, h1 em { display: block; }
h1 em { color: var(--blue); font-weight: 400; }

.hero-intro { max-width: 670px; font-size: clamp(1.03rem, 1.35vw, 1.25rem); line-height: 1.65; color: #344354; }
.hero-actions { display: flex; align-items: center; gap: 15px; flex-wrap: wrap; margin-top: 20px; }

.button {
  min-height: 53px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 18px;
  padding: 13px 19px;
  text-decoration: none;
  font-size: .78rem;
  font-weight: 800;
  letter-spacing: .075em;
  text-transform: uppercase;
  transition: transform .2s ease, background-color .2s ease, color .2s ease;
}
.button:hover { transform: translateY(-2px); }
.button-primary { background: var(--ink); color: var(--white); border: 1px solid var(--ink); }
.button-primary:hover { background: var(--blue); border-color: var(--blue); }
.button-quiet { border-bottom: 1px solid var(--ink); }
.button-light { background: var(--white); color: var(--ink); }
.hero-note { margin-top: 24px; margin-bottom: 0; color: var(--muted); font-size: .82rem; }

.hero-visual { position: relative; min-height: 720px; overflow: hidden; background: var(--ink); color: var(--white); }
.hero-image {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(6,24,43,.15), rgba(6,24,43,.66)), url("assets/network-backdrop.jpg") center/cover;
  filter: saturate(.85) contrast(1.08);
}
.hero-visual::before {
  content: "";
  position: absolute;
  z-index: 1;
  inset: 0;
  background: linear-gradient(90deg, rgba(7,21,38,.28), transparent 38%), radial-gradient(circle at 55% 35%, transparent, rgba(7,21,38,.46));
}
.annotation-map { position: absolute; z-index: 2; inset: 0; width: 100%; height: 100%; }
.annotation-map path, .annotation-map circle { vector-effect: non-scaling-stroke; }
.link-line { fill: none; stroke: rgba(255,255,255,.72); stroke-width: 1.3; stroke-dasharray: 4 7; }
.region { fill: rgba(75,196,245,.11); stroke: var(--blue-bright); stroke-width: 2; }
.region-two { stroke: var(--lime); fill: rgba(214,244,99,.08); }
.annotation-map circle { fill: var(--paper); stroke: var(--ink); stroke-width: 2; }
.visual-caption { position: absolute; z-index: 3; display: flex; gap: 10px; align-items: center; padding: 10px 13px; background: rgba(7,21,38,.88); border-left: 2px solid var(--blue-bright); backdrop-filter: blur(8px); font-size: .72rem; }
.visual-caption span { color: var(--blue-bright); font-weight: 800; }
.visual-caption strong { font-weight: 700; }
.caption-a { top: 13%; left: 7%; }
.caption-b { top: 28%; right: 5%; border-color: var(--lime); }
.caption-c { bottom: 24%; left: 15%; }
.hero-visual-index { position: absolute; z-index: 3; right: 24px; bottom: 20px; font: 700 .7rem/1 var(--sans); letter-spacing: .2em; }

.continuity { background: var(--ink); color: var(--white); padding: clamp(90px, 11vw, 170px) var(--page-pad); }
.continuity-heading, .continuity-lede, .succession-diagram, .continuity-grid, .continuity > .inline-link { width: min(100%, 1296px); margin-left: auto; margin-right: auto; }
.continuity-heading { display: grid; grid-template-columns: .5fr 1fr; gap: 50px; align-items: end; }
.continuity-heading .eyebrow { margin: 0; }
.continuity h2, .section-intro h2, .manifesto h2, .product-copy h2, .source-copy h2, .final-cta h2 {
  margin-bottom: 0;
  font-family: var(--serif);
  font-size: clamp(2.8rem, 5vw, 5.4rem);
  font-weight: 400;
  line-height: 1;
  letter-spacing: -.045em;
}

.continuity-lede {
  margin-top: 55px;
  display: grid;
  grid-template-columns: .5fr 1fr;
  gap: 50px;
  padding-top: 30px;
  border-top: 1px solid rgba(255,255,255,.18);
}
.continuity-lede strong { color: var(--lime); font: 400 1.45rem/1.3 var(--serif); }
.continuity-lede p { max-width: 850px; color: rgba(255,255,255,.7); }

.succession-diagram { display: grid; grid-template-columns: 1fr 1.2fr 1fr; align-items: center; gap: 28px; margin-top: 90px; padding: 38px 0; border-top: 1px solid rgba(255,255,255,.18); border-bottom: 1px solid rgba(255,255,255,.18); }
.legacy-mark, .yenda-mark { min-height: 135px; display: flex; flex-direction: column; justify-content: center; align-items: center; gap: 15px; text-align: center; }
.legacy-mark img { width: 210px; filter: grayscale(1) brightness(2); opacity: .66; }
.legacy-mark span, .yenda-mark small { color: rgba(255,255,255,.58); font-size: .72rem; letter-spacing: .14em; text-transform: uppercase; }
.yenda-mark img { width: 70px; }
.yenda-mark > span { font: 400 2rem/1 var(--serif); }
.succession-line { height: 1px; position: relative; background: linear-gradient(90deg, rgba(255,255,255,.18), var(--blue-bright), rgba(255,255,255,.18)); }
.succession-line::after { content: "→"; position: absolute; right: 0; top: -18px; color: var(--blue-bright); font-size: 1.5rem; }
.succession-line span { position: absolute; width: 8px; height: 8px; border-radius: 50%; background: var(--lime); top: -4px; left: 50%; box-shadow: 0 0 0 7px rgba(214,244,99,.1); }

.continuity-grid { display: grid; grid-template-columns: repeat(3, 1fr); margin-top: 74px; }
.continuity-card { padding: 16px clamp(20px, 3vw, 48px) 28px 0; border-right: 1px solid rgba(255,255,255,.16); }
.continuity-card + .continuity-card { padding-left: clamp(20px, 3vw, 48px); }
.continuity-card:last-child { border-right: 0; }
.card-number, .feature-index { display: block; margin-bottom: 32px; color: var(--blue-bright); font: 800 .72rem/1 var(--sans); letter-spacing: .16em; }
.continuity-card h3, .feature h3 { font: 400 clamp(1.55rem, 2vw, 2.15rem)/1.15 var(--serif); letter-spacing: -.025em; }
.continuity-card p { color: rgba(255,255,255,.7); font-size: .95rem; }
.inline-link { display: flex; width: fit-content !important; gap: 20px; margin-top: 48px; color: var(--blue-bright); text-decoration: none; border-bottom: 1px solid currentColor; font-size: .82rem; font-weight: 800; letter-spacing: .06em; text-transform: uppercase; }

.manifesto { display: grid; grid-template-columns: 1.08fr .92fr; min-height: 780px; background: var(--paper-bright); }
.manifesto-image { position: relative; min-height: 650px; overflow: hidden; }
.manifesto-image img { width: 100%; height: 100%; object-fit: cover; filter: saturate(.75) contrast(1.05); }
.manifesto-image::after { content: ""; position: absolute; inset: 0; background: linear-gradient(0deg, rgba(7,21,38,.54), transparent 52%); }
.manifesto-image-label { position: absolute; z-index: 2; left: 35px; right: 35px; bottom: 30px; display: flex; justify-content: space-between; color: var(--white); font-size: .68rem; font-weight: 800; letter-spacing: .16em; text-transform: uppercase; }
.manifesto-copy { padding: clamp(70px, 9vw, 150px) clamp(40px, 7vw, 110px); align-self: center; }
.manifesto-copy > p:not(.eyebrow) { margin-top: 38px; color: #465462; font-size: 1.05rem; }
.manifesto blockquote { margin: 48px 0 0; padding: 18px 0 18px 26px; border-left: 2px solid var(--blue); font: italic 400 1.28rem/1.5 var(--serif); color: #1e4967; }

.features { padding: clamp(90px, 11vw, 170px) var(--page-pad); background: var(--paper); }
.section-intro, .feature-grid { width: min(100%, 1296px); margin-left: auto; margin-right: auto; }
.section-intro { display: grid; grid-template-columns: .6fr 1.2fr .8fr; gap: 50px; align-items: end; margin-bottom: 78px; }
.section-intro .eyebrow { margin: 0; align-self: start; }
.section-intro > p:last-child { margin: 0; color: var(--muted); }
.feature-grid { display: grid; grid-template-columns: repeat(3, 1fr); border-top: 1px solid var(--line); border-left: 1px solid var(--line); }
.feature { min-height: 390px; padding: clamp(28px, 4vw, 54px); border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); background: rgba(255,255,255,.32); transition: background-color .25s ease, transform .25s ease; }
.feature:hover { background: var(--paper-bright); transform: translateY(-4px); }
.feature-wide { grid-column: span 2; display: grid; grid-template-columns: 190px 1fr; gap: 45px; align-items: center; background: var(--blue-pale); }
.feature-dark { background: var(--ink); color: var(--white); }
.feature-dark:hover { background: var(--ink-soft); }
.feature-dark p { color: rgba(255,255,255,.68) !important; }
.feature-accent { background: var(--lime); }
.feature h3 { max-width: 420px; }
.feature p { color: #53606c; font-size: .93rem; }
.feature-status { display: block; width: fit-content; margin-bottom: 18px; padding: 5px 9px; background: var(--ink); color: var(--white); font-size: .61rem; font-weight: 800; letter-spacing: .12em; text-transform: uppercase; }
.feature-icon svg { width: 180px; fill: none; stroke: var(--ink); stroke-width: 2.2; }
.feature-icon .accent { stroke: var(--blue); fill: rgba(20,159,227,.15); }

.product-view { display: grid; grid-template-columns: .75fr 1.25fr; gap: clamp(45px, 7vw, 110px); align-items: center; padding: clamp(90px, 11vw, 170px) var(--page-pad); background: #0b2138; color: var(--white); overflow: hidden; }
.product-copy { max-width: 560px; justify-self: end; }
.product-copy > p:not(.eyebrow) { margin-top: 35px; color: rgba(255,255,255,.7); }
.architecture-list { list-style: none; margin: 45px 0 0; padding: 0; border-top: 1px solid rgba(255,255,255,.17); }
.architecture-list li { padding: 16px 0; display: flex; justify-content: space-between; gap: 25px; border-bottom: 1px solid rgba(255,255,255,.17); font-size: .77rem; }
.architecture-list li span { color: rgba(255,255,255,.55); }
.architecture-list strong { text-align: right; }
.planned-capabilities { margin-top: 58px; padding-top: 34px; border-top: 1px solid rgba(255,255,255,.2); }
.planned-intro .planned-label { display: block; margin-bottom: 14px; color: var(--lime); font-size: .64rem; font-weight: 850; letter-spacing: .16em; text-transform: uppercase; }
.planned-intro h3 { margin-bottom: 16px; font: 400 clamp(1.7rem, 2.5vw, 2.6rem)/1.08 var(--serif); letter-spacing: -.025em; }
.planned-intro p { color: rgba(255,255,255,.66); font-size: .88rem; }
.planned-grid { display: grid; grid-template-columns: 1fr 1fr; margin-top: 30px; border-top: 1px solid rgba(255,255,255,.16); border-left: 1px solid rgba(255,255,255,.16); }
.planned-grid article { min-width: 0; padding: 22px; border-right: 1px solid rgba(255,255,255,.16); border-bottom: 1px solid rgba(255,255,255,.16); }
.planned-grid article > span { display: block; margin-bottom: 22px; color: var(--blue-bright); font-size: .61rem; font-weight: 850; letter-spacing: .14em; }
.planned-grid h4 { margin: 0 0 12px; font: 400 1.2rem/1.15 var(--serif); }
.planned-grid p { margin: 0; color: rgba(255,255,255,.57); font-size: .76rem; line-height: 1.55; }
.product-shot { width: min(900px, 70vw); margin: 0; position: relative; }
.product-shot::before { content: ""; position: absolute; z-index: 0; width: 70%; height: 70%; top: -18%; right: -16%; border: 1px solid rgba(75,196,245,.27); border-radius: 50%; }
.shot-frame { position: relative; z-index: 1; padding: 0 10px 10px; background: rgba(255,255,255,.1); border: 1px solid rgba(255,255,255,.2); box-shadow: 0 35px 90px rgba(0,0,0,.35); transform: rotate(-1.5deg); }
.shot-bar { height: 38px; display: flex; align-items: center; gap: 7px; padding: 0 8px; }
.shot-bar span { width: 8px; height: 8px; border-radius: 50%; background: rgba(255,255,255,.4); }
.shot-bar small { margin-left: auto; margin-right: auto; color: rgba(255,255,255,.5); font-size: .62rem; letter-spacing: .12em; }
.shot-frame img { width: 100%; height: auto; }
.product-shot figcaption { position: relative; z-index: 2; display: flex; justify-content: space-between; padding: 18px 12px 0; color: rgba(255,255,255,.56); font-size: .68rem; font-weight: 750; letter-spacing: .11em; text-transform: uppercase; }

.open-source { display: grid; grid-template-columns: 1fr 1fr; min-height: 680px; background: var(--blue); color: var(--white); }
.source-symbol { min-height: 540px; display: flex; align-items: center; justify-content: center; gap: 18px; overflow: hidden; border-right: 1px solid rgba(255,255,255,.32); font: 400 clamp(5rem, 13vw, 13rem)/1 var(--serif); letter-spacing: -.08em; }
.source-symbol span:nth-child(2) { color: var(--ink); }
.source-copy { padding: clamp(70px, 9vw, 140px); align-self: center; }
.source-copy .eyebrow { color: var(--ink); }
.source-copy > p:not(.eyebrow) { margin: 35px 0; max-width: 650px; color: rgba(255,255,255,.85); }
.source-availability { max-width: 650px; display: flex; justify-content: space-between; gap: 28px; padding: 18px 0; border-top: 1px solid rgba(255,255,255,.38); border-bottom: 1px solid rgba(255,255,255,.38); font-size: .76rem; }
.source-availability span { color: rgba(255,255,255,.7); }
.source-availability strong { text-align: right; }

.final-cta { max-width: var(--max); margin: 0 auto; display: grid; grid-template-columns: 1.25fr .75fr; min-height: 680px; background: var(--paper); border-left: 1px solid var(--line); border-right: 1px solid var(--line); overflow: hidden; }
.final-copy { padding: clamp(75px, 10vw, 145px) var(--page-pad); align-self: center; }
.final-cta h2 span, .final-cta h2 em { display: block; }
.final-cta h2 em { color: var(--blue); font-weight: 400; }
.final-art { position: relative; min-height: 600px; display: grid; place-items: center; background: var(--blue-pale); overflow: hidden; }
.final-art img { z-index: 3; width: 100px; filter: drop-shadow(0 18px 20px rgba(7,21,38,.16)); }
.orbit { position: absolute; border: 1px solid rgba(7,21,38,.25); border-radius: 50%; }
.orbit::after { content: ""; position: absolute; width: 10px; height: 10px; background: var(--blue); border-radius: 50%; }
.orbit-a { width: 240px; height: 240px; transform: rotate(20deg); }
.orbit-a::after { left: 19px; top: 44px; }
.orbit-b { width: 410px; height: 230px; transform: rotate(-22deg); }
.orbit-b::after { right: 58px; bottom: 12px; background: var(--lime); }
.orbit-c { width: 550px; height: 550px; opacity: .45; }

footer { padding: 50px var(--page-pad) 28px; display: grid; grid-template-columns: 1fr 1fr auto; align-items: center; gap: 26px; background: var(--ink); color: var(--white); }
.footer-brand { width: max-content; }
footer p { margin: 0; color: rgba(255,255,255,.58); font-size: .83rem; }
.footer-project-context { display: grid; gap: 10px; }
.footer-contact { display: flex; align-items: baseline; gap: 10px 16px; flex-wrap: wrap; }
.footer-contact span { color: rgba(255,255,255,.38); font-size: .6rem; font-weight: 800; letter-spacing: .11em; text-transform: uppercase; }
.footer-contact a { color: rgba(255,255,255,.86); text-decoration-color: rgba(75,196,245,.55); text-underline-offset: 4px; font-size: .75rem; font-weight: 700; }
.footer-contact a:hover { color: var(--blue-bright); }
.footer-links { display: flex; gap: 30px; }
footer small { grid-column: 1 / -1; margin-top: 22px; padding-top: 22px; border-top: 1px solid rgba(255,255,255,.14); color: rgba(255,255,255,.45); font-size: .66rem; }

.reveal { opacity: 0; transform: translateY(24px); transition: opacity .7s ease, transform .7s ease; }
.reveal.is-visible { opacity: 1; transform: translateY(0); }

:focus-visible { outline: 3px solid var(--lime); outline-offset: 4px; }

@media (max-width: 1100px) {
  .site-header { grid-template-columns: 160px 1fr auto; }
  .main-nav { gap: 20px; }
  .main-nav a { font-size: .68rem; }
  .hero { grid-template-columns: 1fr 1fr; }
  .hero-copy { padding-left: 50px; padding-right: 45px; }
  .continuity-heading, .section-intro { grid-template-columns: 1fr 1.4fr; }
  .section-intro > p:last-child { grid-column: 2; }
  .feature-wide { grid-template-columns: 130px 1fr; }
  .product-view { grid-template-columns: 1fr; }
  .product-copy { justify-self: start; max-width: 780px; }
  .product-shot { width: min(100%, 900px); justify-self: end; }
}

@media (max-width: 820px) {
  :root { --header-height: 72px; }
  .site-header { grid-template-columns: 1fr auto; }
  .main-nav { display: none; }
  .menu-toggle { width: 42px; height: 42px; display: grid; place-content: center; gap: 6px; padding: 0; border: 1px solid rgba(255,255,255,.22); background: transparent; cursor: pointer; }
  .menu-toggle span { display: block; width: 18px; height: 1px; background: var(--white); 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); }
  .mobile-nav { position: absolute; left: 0; right: 0; top: var(--header-height); padding: 20px var(--page-pad) 28px; display: none; flex-direction: column; gap: 2px; background: var(--ink); border-bottom: 1px solid rgba(255,255,255,.16); }
  .mobile-nav.is-open { display: flex; }
  .mobile-nav a { padding: 12px 0; text-decoration: none; border-bottom: 1px solid rgba(255,255,255,.12); }
  .hero { grid-template-columns: 1fr; }
  .hero-copy { min-height: 700px; padding: 70px var(--page-pad); }
  .hero-visual { min-height: 620px; }
  .continuity-heading, .section-intro { grid-template-columns: 1fr; gap: 25px; }
  .continuity-lede { grid-template-columns: 1fr; gap: 16px; }
  .section-intro > p:last-child { grid-column: auto; }
  .continuity-grid { grid-template-columns: 1fr; }
  .continuity-card, .continuity-card + .continuity-card { padding: 35px 0; border-right: 0; border-bottom: 1px solid rgba(255,255,255,.16); }
  .manifesto { grid-template-columns: 1fr; }
  .manifesto-image { min-height: 520px; }
  .feature-grid { grid-template-columns: 1fr 1fr; }
  .feature-wide { grid-column: 1 / -1; }
  .open-source { grid-template-columns: 1fr; }
  .source-symbol { min-height: 350px; border-right: 0; border-bottom: 1px solid rgba(255,255,255,.3); }
  .final-cta { grid-template-columns: 1fr; }
  .final-art { min-height: 420px; }
  footer { grid-template-columns: 1fr; }
  .footer-links { flex-wrap: wrap; }
}

@media (max-width: 560px) {
  body { font-size: 16px; }
  .brand { width: 116px; }
  .header-actions { gap: 10px; }
  h1 { font-size: clamp(3.05rem, 14vw, 4.35rem); }
  .hero-copy { min-height: auto; }
  .release-pill { font-size: .62rem; }
  .hero-visual { min-height: 520px; }
  .visual-caption { font-size: .65rem; }
  .caption-a { top: 8%; }
  .caption-b { top: 31%; }
  .caption-c { bottom: 18%; }
  .succession-diagram { grid-template-columns: 1fr; }
  .succession-line { width: 1px; height: 80px; justify-self: center; background: linear-gradient(180deg, rgba(255,255,255,.18), var(--blue-bright), rgba(255,255,255,.18)); }
  .succession-line::after { content: "↓"; top: auto; bottom: -12px; right: -9px; }
  .continuity h2, .section-intro h2, .manifesto h2, .product-copy h2, .source-copy h2, .final-cta h2 { font-size: clamp(2.5rem, 13vw, 3.6rem); }
  .manifesto-image { min-height: 420px; }
  .feature-grid { grid-template-columns: 1fr; }
  .feature-wide { display: block; }
  .feature-icon { width: 110px; margin-bottom: 30px; }
  .feature { min-height: auto; }
  .architecture-list li { display: block; }
  .architecture-list strong { display: block; margin-top: 4px; text-align: left; }
  .planned-grid { grid-template-columns: 1fr; }
  .product-shot { width: 112%; }
  .product-shot figcaption { display: block; }
  .product-shot figcaption span { display: block; }
  .source-availability { display: block; }
  .source-availability strong { display: block; margin-top: 4px; text-align: left; }
  .source-symbol { min-height: 280px; }
  .source-copy { padding-left: var(--page-pad); padding-right: var(--page-pad); }
  .orbit-c { width: 400px; height: 400px; }
}

@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; }
}