:root {
  --paper: #f3f2ec;
  --paper-2: #ebe9e1;
  --ink: #121715;
  --ink-soft: #4f5b56;
  --line: rgba(18, 23, 21, 0.16);
  --line-strong: rgba(18, 23, 21, 0.3);
  --night: #101713;
  --night-2: #17201b;
  --night-soft: #b9c5bf;
  --acid: #b7ff69;
  --acid-strong: #8be83f;
  --aqua: #8ee7db;
  --white: #ffffff;
  --radius: 24px;
  --radius-sm: 14px;
  --shell: 1180px;
  --header-h: 76px;
  --shadow: 0 22px 70px rgba(20, 30, 25, 0.09);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

::selection { background: var(--acid); color: var(--ink); }
a { color: inherit; }
button, input, textarea, select { font: inherit; }
img, svg { max-width: 100%; }
code, pre { font-family: "SFMono-Regular", Consolas, "Liberation Mono", monospace; }

.shell { width: min(calc(100% - 40px), 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; top: 8px; left: 8px; z-index: 9999; padding: 10px 14px; background: var(--ink); color: white; transform: translateY(-150%); border-radius: 8px; }
.skip-link:focus { transform: translateY(0); }

.site-header {
  position: fixed;
  z-index: 100;
  inset: 0 0 auto;
  height: var(--header-h);
  transition: background .25s ease, border-color .25s ease, backdrop-filter .25s ease;
  border-bottom: 1px solid transparent;
}
.site-header.is-scrolled { background: rgba(243, 242, 236, .88); border-color: var(--line); backdrop-filter: blur(18px); }
.nav-wrap { height: 100%; display: flex; align-items: center; justify-content: space-between; gap: 32px; }
.brand { display: inline-flex; align-items: center; gap: 9px; text-decoration: none; font-size: 14px; line-height: 1; }
.brand-mark { width: 34px; display: grid; grid-template-columns: 7px 1fr 7px; align-items: center; gap: 4px; }
.brand-mark span { width: 7px; height: 7px; border: 1.7px solid currentColor; border-radius: 50%; }
.brand-mark i { display: block; height: 1px; background: currentColor; opacity: .7; }
.brand-word { font-weight: 800; letter-spacing: .06em; }
.brand-suffix { color: var(--ink-soft); }
.main-nav { display: flex; align-items: center; gap: 28px; font-size: 13px; }
.main-nav a { text-decoration: none; color: var(--ink-soft); transition: color .2s ease; }
.main-nav a:hover, .main-nav a:focus-visible { color: var(--ink); }
.main-nav .nav-cta { color: var(--ink); border: 1px solid var(--line-strong); border-radius: 999px; padding: 9px 14px; }
.nav-toggle { display: none; border: 0; background: transparent; padding: 8px; }
.nav-toggle span:not(.sr-only) { display: block; width: 22px; height: 1px; background: var(--ink); margin: 5px 0; }

.hero { min-height: 100svh; padding-top: calc(var(--header-h) + 82px); position: relative; overflow: hidden; }
.hero::before {
  content: "";
  position: absolute;
  width: 560px;
  height: 560px;
  top: -190px;
  right: 2vw;
  border: 1px solid rgba(18, 23, 21, .08);
  border-radius: 50%;
  box-shadow: 0 0 0 80px rgba(18,23,21,.025), 0 0 0 160px rgba(18,23,21,.018);
  pointer-events: none;
}
.hero-grid { display: grid; grid-template-columns: 1.06fr .94fr; gap: 72px; align-items: center; min-height: calc(100svh - var(--header-h) - 142px); }
.hero-copy { padding-bottom: 56px; }
.eyebrow-row { display: flex; align-items: center; gap: 16px; margin-bottom: 28px; flex-wrap: wrap; }
.status-pill { display: inline-flex; align-items: center; gap: 8px; border: 1px solid var(--line-strong); border-radius: 999px; padding: 7px 10px; font-size: 11px; font-weight: 700; letter-spacing: .06em; text-transform: uppercase; }
.status-dot { width: 7px; height: 7px; background: var(--acid-strong); border-radius: 50%; box-shadow: 0 0 0 4px rgba(139,232,63,.14); }
.eyebrow { color: var(--ink-soft); font-size: 12px; letter-spacing: .08em; text-transform: uppercase; }
.hero h1 { font-size: clamp(3.4rem, 7.7vw, 7.25rem); line-height: .91; letter-spacing: -.064em; margin: 0 0 32px; max-width: 8.3ch; font-weight: 700; }
.hero h1 span:first-child { font-weight: 400; font-style: italic; }
.hero h1 span:last-child { position: relative; z-index: 1; }
.hero h1 span:last-child::after { content: ""; position: absolute; left: 1%; right: -2%; bottom: .07em; height: .18em; background: var(--acid); z-index: -1; transform: rotate(-1deg); }
.hero-lede { max-width: 650px; font-size: clamp(1.12rem, 2vw, 1.42rem); line-height: 1.48; color: var(--ink-soft); margin: 0; }
.hero-actions { display: flex; gap: 12px; margin-top: 34px; flex-wrap: wrap; }
.button { display: inline-flex; align-items: center; justify-content: center; gap: 13px; min-height: 50px; padding: 0 18px; border-radius: 999px; text-decoration: none; font-weight: 650; font-size: 13px; transition: transform .2s ease, background .2s ease, border-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: #253029; }
.button-quiet { border: 1px solid var(--line-strong); color: var(--ink); }
.button-quiet:hover { border-color: var(--ink); }
.hero-principles { display: flex; align-items: center; gap: 10px; margin-top: 46px; color: var(--ink-soft); text-transform: uppercase; letter-spacing: .09em; font-size: 10px; flex-wrap: wrap; }
.hero-principles i { width: 24px; height: 1px; background: var(--line-strong); }

.symbiosis-card { border-radius: 36px; border: 1px solid var(--line); min-height: 520px; padding: 32px; background: rgba(255,255,255,.24); box-shadow: var(--shadow); display: flex; flex-direction: column; justify-content: space-between; position: relative; overflow: hidden; }
.symbiosis-card::before { content: ""; position: absolute; inset: 15% 19%; border: 1px dashed rgba(18,23,21,.13); border-radius: 50%; }
.symbiosis-card::after { content: ""; position: absolute; inset: 30% 31%; background: radial-gradient(circle, rgba(183,255,105,.42), transparent 66%); filter: blur(18px); }
.orbit-label { font-size: 10px; letter-spacing: .11em; text-transform: uppercase; color: var(--ink-soft); position: relative; z-index: 2; }
.symbiosis-stage { display: grid; grid-template-columns: 1fr 1.4fr 1fr; align-items: center; position: relative; z-index: 2; }
.node { display: flex; flex-direction: column; align-items: center; gap: 12px; text-transform: uppercase; letter-spacing: .11em; font-size: 9px; color: var(--ink-soft); }
.node-core { width: 82px; aspect-ratio: 1; border-radius: 50%; border: 1px solid var(--line-strong); display: grid; place-items: center; font-size: 17px; color: var(--ink); background: var(--paper); box-shadow: inset 0 0 0 8px rgba(18,23,21,.025); }
.node-ai .node-core { border-style: dashed; }
.bridge { min-height: 250px; position: relative; display: flex; justify-content: center; align-items: center; }
.bridge-line { position: absolute; height: 1px; width: 145%; background: var(--line-strong); left: -22%; }
.protocol-core { width: 142px; aspect-ratio: 1; display: flex; flex-direction: column; align-items: center; justify-content: center; border-radius: 50%; background: var(--ink); color: white; position: relative; z-index: 2; box-shadow: 0 16px 50px rgba(18,23,21,.25); }
.protocol-core::before { content: ""; position: absolute; inset: -13px; border: 1px solid rgba(18,23,21,.22); border-radius: 50%; }
.core-kicker { font-size: 8px; text-transform: uppercase; letter-spacing: .14em; opacity: .55; }
.protocol-core strong { font-size: 20px; letter-spacing: .08em; margin: 3px 0; }
.protocol-core small { font-size: 8px; opacity: .7; }
.packet { width: 9px; height: 9px; background: var(--acid-strong); border-radius: 50%; position: absolute; top: calc(50% - 4px); z-index: 3; box-shadow: 0 0 0 5px rgba(139,232,63,.13); }
.packet-a { animation: packetA 4.5s ease-in-out infinite; }
.packet-b { background: var(--aqua); box-shadow: 0 0 0 5px rgba(142,231,219,.13); animation: packetB 4.5s ease-in-out infinite; }
.symbiosis-caption { display: flex; justify-content: space-between; color: var(--ink-soft); font-size: 9px; text-transform: uppercase; letter-spacing: .1em; position: relative; z-index: 2; }
.hero-rule { height: 1px; width: min(calc(100% - 40px), var(--shell)); margin: 24px auto 0; background: var(--line); }
@keyframes packetA { 0%,100% { transform: translateX(-74px); opacity: .3; } 50% { transform: translateX(74px); opacity: 1; } }
@keyframes packetB { 0%,100% { transform: translateX(74px); opacity: .3; } 50% { transform: translateX(-74px); opacity: 1; } }

.section { padding: 120px 0; }
.section-intro { padding-top: 140px; }
.section-index { margin: 0 0 18px; color: var(--ink-soft); text-transform: uppercase; letter-spacing: .12em; font-size: 10px; font-weight: 650; }
.split-heading { display: grid; grid-template-columns: 1fr 1fr; gap: 100px; align-items: start; }
.split-heading h2, .section-topline h2, .manifest-copy h2, .pilot-copy h2, .build-heading h2, .open-grid h2 { font-size: clamp(2.4rem, 5vw, 4.5rem); line-height: 1.02; letter-spacing: -.045em; margin: 0; font-weight: 600; }
.section-copy { color: var(--ink-soft); font-size: 1.12rem; max-width: 560px; }
.section-copy p:first-child { margin-top: 4px; }
.section-copy code { color: var(--ink); background: rgba(18,23,21,.06); border-radius: 5px; padding: 2px 5px; }
.protocol-stack { margin-top: 78px; border-top: 1px solid var(--line); }
.stack-row { display: grid; grid-template-columns: 1.1fr 1.25fr 2.2fr; align-items: center; gap: 30px; min-height: 78px; border-bottom: 1px solid var(--line); }
.stack-name { font-weight: 700; font-size: 15px; }
.stack-role { color: var(--ink-soft); }
.stack-note { color: var(--ink-soft); font-size: 13px; }
.stack-row-humia { margin-top: 16px; border: 1px solid var(--ink); padding-inline: 24px; background: var(--acid); border-radius: var(--radius-sm); }
.stack-row-humia .stack-name { letter-spacing: .08em; }
.stack-row-humia .stack-role, .stack-row-humia .stack-note { color: var(--ink); }

.section-dark { background: var(--night); color: white; }
.section-dark .section-index, .section-dark .microcopy { color: var(--night-soft); }
.section-topline { display: flex; justify-content: space-between; align-items: end; gap: 40px; margin-bottom: 60px; }
.section-topline > div { max-width: 750px; }
.microcopy { color: var(--ink-soft); max-width: 280px; font-size: 12px; margin: 0; }
.pillars-grid { display: grid; grid-template-columns: repeat(4, 1fr); border-top: 1px solid rgba(255,255,255,.18); border-bottom: 1px solid rgba(255,255,255,.18); }
.pillar { min-height: 420px; padding: 28px 26px 32px; border-right: 1px solid rgba(255,255,255,.18); display: flex; flex-direction: column; }
.pillar:last-child { border-right: 0; }
.pillar-number { color: var(--night-soft); font-size: 10px; letter-spacing: .1em; }
.pillar h3 { font-size: 1.5rem; margin: auto 0 10px; }
.pillar p { color: var(--night-soft); font-size: 13px; margin: 0; }
.pillar-icon { width: 88px; height: 88px; margin-top: 54px; position: relative; }
.pillar-icon span { position: absolute; border: 1px solid rgba(255,255,255,.56); border-radius: 50%; width: 50px; height: 50px; top: 18px; }
.pillar-icon span:first-child { left: 5px; }
.pillar-icon span:last-child { right: 5px; border-color: var(--acid); }
.pillar-icon.access span { width: 44px; height: 44px; top: 22px; border-radius: 8px; }
.pillar-icon.access span:nth-child(1) { left: 0; }
.pillar-icon.access span:nth-child(2) { left: 22px; border-color: var(--acid); }
.pillar-icon.access span:nth-child(3) { left: 44px; border-style: dashed; }
.pillar-icon.attribution span { width: 58px; height: 58px; top: 15px; border-radius: 8px 24px 8px 24px; transform: rotate(45deg); }
.pillar-icon.attribution span:first-child { left: 1px; }
.pillar-icon.attribution span:last-child { right: 1px; border-color: var(--acid); }
.pillar-icon.reciprocity span { width: 70px; height: 36px; top: 26px; border-radius: 999px; }
.pillar-icon.reciprocity span:first-child { left: 0; border-right-color: var(--acid); }
.pillar-icon.reciprocity span:last-child { right: 0; border-left-color: var(--acid); }

.flow { list-style: none; padding: 0; margin: 80px 0 0; display: grid; grid-template-columns: repeat(5, 1fr); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.flow li { min-height: 240px; padding: 24px 20px; border-right: 1px solid var(--line); position: relative; }
.flow li:last-child { border-right: 0; }
.flow-index { display: block; color: var(--ink-soft); font-size: 10px; letter-spacing: .11em; margin-bottom: 76px; }
.flow strong { font-size: 1.06rem; }
.flow p { margin: 8px 0 0; color: var(--ink-soft); font-size: 12px; line-height: 1.55; }
.flow code { color: var(--ink); font-size: 11px; }

.manifest-section { background: var(--paper-2); }
.manifest-grid { display: grid; grid-template-columns: .85fr 1.15fr; gap: 90px; align-items: center; }
.manifest-copy p:not(.section-index) { color: var(--ink-soft); max-width: 480px; }
.manifest-path { margin-top: 34px; border: 1px solid var(--line-strong); border-radius: 10px; display: inline-flex; align-items: center; overflow: hidden; background: rgba(255,255,255,.32); }
.manifest-path span { padding: 11px 12px; border-right: 1px solid var(--line-strong); font-size: 10px; font-weight: 800; letter-spacing: .1em; }
.manifest-path code { padding: 11px 13px; font-size: 12px; }
.fine-print { font-size: 11px; margin-top: 16px; }
.code-window { border-radius: 20px; overflow: hidden; background: #111814; color: #dce7e1; box-shadow: 0 30px 80px rgba(18,23,21,.14); border: 1px solid rgba(255,255,255,.08); }
.code-toolbar { height: 52px; display: grid; grid-template-columns: 1fr auto 1fr; align-items: center; padding: 0 16px; border-bottom: 1px solid rgba(255,255,255,.09); color: #899a91; font-size: 11px; }
.code-dots { display: flex; gap: 6px; }
.code-dots i { width: 7px; height: 7px; border: 1px solid #63746b; border-radius: 50%; }
.copy-button { justify-self: end; border: 1px solid rgba(255,255,255,.16); background: transparent; color: #c6d1cb; border-radius: 999px; padding: 6px 10px; font-size: 10px; cursor: pointer; }
.copy-button:hover { border-color: var(--acid); color: var(--acid); }
.code-window pre { margin: 0; padding: 28px; overflow-x: auto; font-size: 12px; line-height: 1.7; tab-size: 2; }
.code-window code { color: #cfe2d8; }

.maturity-section { padding-bottom: 150px; }
.maturity-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; }
.maturity-card { border: 1px solid var(--line); border-radius: 18px; padding: 24px; min-height: 300px; display: flex; flex-direction: column; background: rgba(255,255,255,.17); }
.maturity-card.is-current { background: var(--acid); border-color: var(--ink); }
.maturity-tag { display: inline-flex; align-self: flex-start; border: 1px solid var(--line-strong); border-radius: 999px; padding: 5px 8px; text-transform: uppercase; letter-spacing: .1em; font-size: 8px; }
.maturity-card h3 { margin: auto 0 8px; font-size: 1.5rem; }
.maturity-card p { margin: 0 0 26px; color: var(--ink-soft); font-size: 12px; }
.maturity-card.is-current p { color: var(--ink); }
.maturity-feature { border-top: 1px solid var(--line); padding-top: 14px; text-transform: uppercase; letter-spacing: .08em; font-size: 9px; color: var(--ink-soft); }
.maturity-card.is-current .maturity-feature { color: var(--ink); border-color: rgba(18,23,21,.25); }

.pilot-section { background: #dfe8e3; }
.pilot-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 90px; align-items: center; }
.pilot-window { background: var(--paper); border: 1px solid rgba(18,23,21,.18); border-radius: 22px; padding: 18px; box-shadow: var(--shadow); transform: rotate(-1.4deg); }
.pilot-url { font-family: monospace; font-size: 10px; color: var(--ink-soft); border-bottom: 1px solid var(--line); padding: 3px 3px 15px; }
.pilot-url span { display: inline-block; width: 7px; height: 7px; background: var(--acid-strong); border-radius: 50%; margin-right: 7px; }
.pilot-data { padding: 18px 3px 2px; }
.pilot-data span { display: grid; grid-template-columns: 1fr 1fr; border-bottom: 1px solid var(--line); padding: 13px 0; font-family: monospace; font-size: 11px; }
.pilot-data span:last-child { border-bottom: 0; }
.pilot-data i { font-style: normal; color: var(--ink-soft); }
.pilot-data b { font-weight: 600; }
.pilot-copy > p:not(.section-index) { color: var(--ink-soft); max-width: 560px; }
.truth-box { margin-top: 30px; border-left: 3px solid var(--ink); padding: 3px 0 3px 18px; }
.truth-box strong { font-size: 12px; text-transform: uppercase; letter-spacing: .08em; }
.truth-box p { margin: 5px 0 0; font-size: 12px; color: var(--ink-soft); }

.build-section { background: var(--paper); }
.build-shell { display: grid; grid-template-columns: .8fr 1.2fr; gap: 90px; align-items: start; }
.build-heading { position: sticky; top: calc(var(--header-h) + 40px); }
.build-heading > p:not(.section-index) { color: var(--ink-soft); }
.tool-grid { display: grid; gap: 14px; }
.tool-card { border: 1px solid var(--line); border-radius: 22px; padding: 30px; min-height: 320px; display: grid; grid-template-columns: 1fr auto; grid-template-areas: "icon state" "title title" "copy copy" "link link"; background: rgba(255,255,255,.2); }
.tool-icon { grid-area: icon; width: 44px; height: 44px; border-radius: 50%; border: 1px solid var(--ink); display: grid; place-items: center; font-size: 20px; }
.tool-icon-check { background: var(--acid); }
.tool-state { grid-area: state; align-self: start; border: 1px solid var(--line); border-radius: 999px; padding: 6px 9px; text-transform: uppercase; letter-spacing: .09em; font-size: 8px; color: var(--ink-soft); }
.tool-card h3 { grid-area: title; font-size: clamp(1.8rem, 3vw, 2.7rem); letter-spacing: -.035em; line-height: 1.04; margin: 54px 0 14px; max-width: 12ch; }
.tool-card p { grid-area: copy; color: var(--ink-soft); max-width: 600px; margin: 0; }
.tool-card p code { color: var(--ink); }
.tool-link { grid-area: link; margin-top: 34px; border-top: 1px solid var(--line); padding-top: 18px; display: flex; justify-content: space-between; font-size: 12px; font-weight: 700; color: var(--ink-soft); }

.open-section { border-top: 1px solid var(--line); }
.open-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 100px; }
.open-copy { font-size: 1.05rem; color: var(--ink-soft); }
.values-row { display: flex; gap: 8px; flex-wrap: wrap; margin-top: 28px; }
.values-row span { border: 1px solid var(--line-strong); border-radius: 999px; padding: 8px 11px; font-size: 10px; text-transform: uppercase; letter-spacing: .08em; color: var(--ink); }

.closing { background: var(--night); color: white; padding: 130px 0 120px; position: relative; overflow: hidden; }
.closing::before { content: ""; position: absolute; width: 700px; height: 700px; border: 1px solid rgba(255,255,255,.07); border-radius: 50%; right: -250px; bottom: -380px; box-shadow: 0 0 0 110px rgba(255,255,255,.018), 0 0 0 220px rgba(255,255,255,.012); }
.closing-inner { position: relative; z-index: 1; }
.closing .section-index { color: var(--night-soft); }
.closing-mark { width: 130px; display: grid; grid-template-columns: 18px 1fr 18px; align-items: center; gap: 8px; margin-bottom: 82px; }
.closing-mark span { width: 18px; height: 18px; border: 2px solid var(--acid); border-radius: 50%; }
.closing-mark i { height: 2px; background: linear-gradient(90deg, var(--acid), var(--aqua)); }
.closing h2 { font-size: clamp(3.1rem, 7vw, 7rem); line-height: .96; letter-spacing: -.058em; font-weight: 520; margin: 0 0 54px; max-width: 12ch; }
.closing h2 span { color: var(--acid); }
.button-light { background: var(--acid); border-color: var(--acid); color: var(--ink); }
.button-light:hover { background: var(--white); border-color: var(--white); }

.site-footer { background: #0b100d; color: white; padding: 46px 0; border-top: 1px solid rgba(255,255,255,.1); }
.footer-grid { display: flex; justify-content: space-between; gap: 40px; }
.footer-brand { color: white; }
.footer-brand .brand-suffix { color: var(--night-soft); }
.site-footer p { color: var(--night-soft); font-size: 11px; max-width: 360px; margin: 14px 0 0; }
.footer-meta { display: flex; gap: 24px; align-items: flex-end; color: var(--night-soft); font-size: 10px; text-transform: uppercase; letter-spacing: .08em; flex-wrap: wrap; }

.reveal { opacity: 0; transform: translateY(18px); transition: opacity .7s ease, transform .7s ease; }
.reveal.is-visible { opacity: 1; transform: translateY(0); }

@media (max-width: 980px) {
  .hero { min-height: auto; }
  .hero-grid { grid-template-columns: 1fr; gap: 30px; min-height: auto; }
  .hero-copy { padding-bottom: 0; }
  .hero h1 { max-width: 9ch; }
  .symbiosis-card { min-height: 440px; }
  .split-heading, .manifest-grid, .pilot-grid, .build-shell, .open-grid { grid-template-columns: 1fr; gap: 50px; }
  .build-heading { position: static; }
  .pillars-grid, .maturity-grid { grid-template-columns: repeat(2, 1fr); }
  .pillar:nth-child(2) { border-right: 0; }
  .pillar:nth-child(-n+2) { border-bottom: 1px solid rgba(255,255,255,.18); }
  .flow { grid-template-columns: repeat(2, 1fr); }
  .flow li { border-bottom: 1px solid var(--line); }
  .flow li:nth-child(2n) { border-right: 0; }
  .flow li:last-child { grid-column: 1 / -1; min-height: 180px; }
  .section-topline { align-items: start; flex-direction: column; }
}

@media (max-width: 720px) {
  :root { --header-h: 68px; }
  .shell { width: min(calc(100% - 28px), var(--shell)); }
  .site-header { background: rgba(243,242,236,.92); backdrop-filter: blur(16px); border-bottom-color: var(--line); }
  .nav-toggle { display: block; }
  .main-nav { position: absolute; top: var(--header-h); left: 14px; right: 14px; padding: 18px; background: var(--paper); border: 1px solid var(--line); border-radius: 16px; box-shadow: var(--shadow); display: none; flex-direction: column; align-items: stretch; gap: 4px; }
  .main-nav.is-open { display: flex; }
  .main-nav a { padding: 10px 6px; }
  .main-nav .nav-cta { margin-top: 6px; text-align: center; }
  .hero { padding-top: calc(var(--header-h) + 58px); }
  .hero-grid { gap: 42px; }
  .hero h1 { font-size: clamp(3.3rem, 17vw, 5.2rem); }
  .hero-lede { font-size: 1.05rem; }
  .hero-principles { gap: 7px; }
  .hero-principles i { width: 13px; }
  .symbiosis-card { min-height: 360px; padding: 22px; border-radius: 24px; }
  .node-core { width: 60px; }
  .protocol-core { width: 104px; }
  .protocol-core strong { font-size: 15px; }
  .protocol-core small { display: none; }
  .bridge-line { width: 140%; left: -20%; }
  .symbiosis-caption { font-size: 7px; }
  .packet { width: 7px; height: 7px; }
  @keyframes packetA { 0%,100% { transform: translateX(-50px); opacity: .3; } 50% { transform: translateX(50px); opacity: 1; } }
  @keyframes packetB { 0%,100% { transform: translateX(50px); opacity: .3; } 50% { transform: translateX(-50px); opacity: 1; } }
  .section { padding: 86px 0; }
  .section-intro { padding-top: 96px; }
  .split-heading { gap: 28px; }
  .split-heading h2, .section-topline h2, .manifest-copy h2, .pilot-copy h2, .build-heading h2, .open-grid h2 { font-size: 2.6rem; }
  .stack-row { grid-template-columns: 1fr 1.2fr; gap: 10px; padding: 14px 0; }
  .stack-note { grid-column: 1 / -1; padding-bottom: 4px; }
  .stack-row-humia { padding: 14px 16px; }
  .pillars-grid, .maturity-grid { grid-template-columns: 1fr; }
  .pillar { border-right: 0; border-bottom: 1px solid rgba(255,255,255,.18); min-height: 310px; }
  .pillar:last-child { border-bottom: 0; }
  .pillar-icon { margin-top: 30px; }
  .flow { grid-template-columns: 1fr; }
  .flow li, .flow li:nth-child(2n), .flow li:last-child { grid-column: auto; border-right: 0; min-height: 160px; }
  .flow-index { margin-bottom: 38px; }
  .code-window pre { padding: 20px; font-size: 10px; }
  .build-shell { gap: 45px; }
  .tool-card { padding: 22px; min-height: 290px; }
  .footer-grid { flex-direction: column; }
  .footer-meta { align-items: flex-start; }
}

@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; }
}


/* HUMIA manifesto + beginner installation */
.manifesto-line { margin-top: 54px; display: grid; grid-template-columns: 90px 1fr; gap: 24px; align-items: start; }
.manifesto-rule { display: block; height: 2px; margin-top: 17px; background: var(--acid); }
.manifesto-line blockquote { margin: 0; font-size: clamp(2rem, 4.8vw, 4.7rem); line-height: 1.02; letter-spacing: -.05em; font-weight: 470; max-width: 17ch; }
.manifesto-line blockquote strong { font-weight: 650; }

.install-guide { margin: 0 0 30px; border: 1px solid var(--line-strong); border-radius: 24px; padding: 30px; background: rgba(255,255,255,.34); }
.install-guide-heading { display: grid; grid-template-columns: .8fr 1.2fr; column-gap: 40px; align-items: start; margin-bottom: 24px; }
.install-guide-heading .section-index { grid-column: 1 / -1; margin-bottom: 12px; }
.install-guide-heading h3 { margin: 0; font-size: clamp(1.8rem, 3vw, 2.9rem); line-height: 1.03; letter-spacing: -.04em; font-weight: 600; }
.install-guide-heading > p:last-child { margin: 3px 0 0; color: var(--ink-soft); line-height: 1.65; max-width: 620px; }
.install-guide-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.install-guide-card { display: grid; grid-template-columns: 38px 1fr; gap: 14px; padding: 20px; border: 1px solid var(--line); border-radius: 17px; background: rgba(255,255,255,.42); }
.install-guide-step { width: 30px; height: 30px; display: grid; place-items: center; border-radius: 50%; background: var(--ink); color: var(--paper); font-size: 10px; font-weight: 800; }
.install-guide-card strong { display: block; font-size: 14px; }
.install-guide-card p { margin: 8px 0 0; color: var(--ink-soft); font-size: 12px; line-height: 1.6; }
.install-guide-card code { color: var(--ink); }
.install-guide-example { display: grid; gap: 4px; margin-top: 14px !important; padding-top: 12px; border-top: 1px solid var(--line); }
.install-guide-example span { font-size: 8px; font-weight: 800; letter-spacing: .1em; text-transform: uppercase; }
.install-guide-example code { font-size: 11px; overflow-wrap: anywhere; }
.install-guide-check { margin-top: 14px; padding: 16px 18px; border-radius: 14px; background: var(--ink); color: white; display: grid; grid-template-columns: max-content 1fr; gap: 18px; align-items: center; }
.install-guide-check strong { color: var(--acid); font-size: 11px; }
.install-guide-check p { margin: 0; color: var(--night-soft); font-size: 11px; line-height: 1.55; }
.install-guide-check code { color: white; }

@media (max-width: 760px) {
  .manifesto-line { grid-template-columns: 36px 1fr; gap: 14px; margin-top: 38px; }
  .manifesto-rule { margin-top: 10px; }
  .manifesto-line blockquote { font-size: 2.25rem; }
  .install-guide { padding: 20px; border-radius: 18px; }
  .install-guide-heading, .install-guide-grid { grid-template-columns: 1fr; }
  .install-guide-heading { gap: 10px; }
  .install-guide-card { grid-template-columns: 30px 1fr; padding: 16px; }
  .install-guide-check { grid-template-columns: 1fr; gap: 6px; }
}

/* HUMIA discovery bridge */
.discovery-bridge { margin-top: 56px; display: grid; grid-template-columns: .9fr 1.1fr; gap: 44px; align-items: stretch; border: 1px solid var(--line-strong); border-radius: 24px; padding: 34px; background: rgba(255,255,255,.28); }
.discovery-copy { display: flex; flex-direction: column; justify-content: center; }
.discovery-kicker { margin: 0 0 12px; font-size: 10px; font-weight: 800; letter-spacing: .12em; text-transform: uppercase; color: var(--ink-soft); }
.discovery-copy h3 { margin: 0; font-size: clamp(1.8rem, 3vw, 2.7rem); line-height: 1.05; letter-spacing: -.035em; font-weight: 600; }
.discovery-copy > p:not(.discovery-kicker) { margin: 18px 0 0; color: var(--ink-soft); max-width: 560px; line-height: 1.65; }
.discovery-copy code { color: var(--ink); }
.discovery-note { font-size: 12px; }
.robots-window { border-radius: 18px; overflow: hidden; background: #111814; color: #dce7e1; border: 1px solid rgba(255,255,255,.08); min-width: 0; }
.robots-toolbar { min-height: 46px; padding: 0 18px; display: flex; align-items: center; justify-content: space-between; border-bottom: 1px solid rgba(255,255,255,.09); font-size: 11px; letter-spacing: .04em; }
.experimental-badge { border: 1px solid rgba(220,231,225,.25); border-radius: 999px; padding: 5px 8px; font-size: 9px; text-transform: uppercase; letter-spacing: .1em; color: #b9c8c0; }
.robots-window pre { margin: 0; padding: 24px; overflow-x: auto; font-size: 11px; line-height: 1.75; }

@media (max-width: 900px) {
  .discovery-bridge { grid-template-columns: 1fr; gap: 28px; }
}

@media (max-width: 600px) {
  .discovery-bridge { margin-top: 36px; padding: 20px; border-radius: 18px; }
  .robots-window pre { padding: 18px; font-size: 10px; }
}

/* HUMIA Generator V0 */
.generator-section { background: var(--paper-2); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.generator-heading { display: grid; grid-template-columns: 1fr 1fr; gap: 90px; align-items: end; margin-bottom: 52px; }
.generator-heading h2, .spec-grid h2 { font-size: clamp(2.8rem, 5vw, 5.2rem); line-height: .98; letter-spacing: -.05em; font-weight: 560; margin: 0; max-width: 10ch; }
.generator-status { display: inline-flex; margin-top: 15px; border: 1px solid var(--line-strong); border-radius: 999px; padding: 7px 10px; font-size: 9px; font-weight: 800; letter-spacing: .09em; text-transform: uppercase; color: var(--ink-soft); }
.generator-layout { display: grid; grid-template-columns: minmax(0, .95fr) minmax(0, 1.05fr); gap: 20px; align-items: start; }
.generator-form, .generator-output { border: 1px solid var(--line); border-radius: 24px; background: rgba(255,255,255,.34); overflow: hidden; }
.generator-form { padding: 0 28px 28px; }
.generator-step { display: grid; grid-template-columns: 44px 1fr; gap: 16px; padding: 28px 0; border-bottom: 1px solid var(--line); }
.generator-step-index { font-size: 10px; font-weight: 800; letter-spacing: .1em; color: var(--ink-soft); padding-top: 3px; }
.generator-step-body label, .generator-step-body legend { font-weight: 750; font-size: 15px; }
.generator-step-body > p, .generator-step-body fieldset > p { margin: 6px 0 16px; font-size: 12px; color: var(--ink-soft); }
.generator-step-body fieldset { border: 0; margin: 0; padding: 0; min-width: 0; }
.domain-field input { width: 100%; border: 1px solid var(--line-strong); background: var(--paper); color: var(--ink); border-radius: 13px; padding: 14px 15px; outline: none; }
.domain-field input:focus { border-color: var(--ink); box-shadow: 0 0 0 3px rgba(18,23,21,.08); }
.domain-field input[aria-invalid="true"] { border-color: #9a382f; }
.field-error { min-height: 18px; margin: 7px 0 0 !important; color: #8e332b !important; }
.preset-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; }
.preset-card { cursor: pointer; position: relative; border: 1px solid var(--line); border-radius: 14px; min-height: 92px; padding: 14px; transition: border-color .2s ease, background .2s ease, transform .2s ease; }
.preset-card:hover { border-color: var(--line-strong); transform: translateY(-1px); }
.preset-card.is-selected { border-color: var(--ink); background: var(--acid); }
.preset-card input { position: absolute; opacity: 0; pointer-events: none; }
.preset-card span { display: grid; gap: 6px; }
.preset-card strong { font-size: 12px; }
.preset-card small { font-size: 9px; line-height: 1.45; color: var(--ink-soft); }
.permission-list { display: grid; border: 1px solid var(--line); border-radius: 14px; overflow: hidden; }
.permission-row { display: grid; grid-template-columns: 1fr auto; align-items: center; gap: 16px; padding: 14px; border-bottom: 1px solid var(--line); cursor: pointer; }
.permission-row:last-child { border-bottom: 0; }
.permission-row span { display: grid; gap: 2px; }
.permission-row strong { font-size: 12px; }
.permission-row small { font-size: 9px; color: var(--ink-soft); }
.permission-row input { appearance: none; width: 38px; height: 22px; border: 1px solid var(--line-strong); border-radius: 999px; background: var(--paper); position: relative; cursor: pointer; transition: background .2s ease, border-color .2s ease; }
.permission-row input::after { content: ""; position: absolute; width: 14px; height: 14px; left: 3px; top: 3px; border-radius: 50%; background: var(--ink-soft); transition: transform .2s ease, background .2s ease; }
.permission-row input:checked { background: var(--acid); border-color: var(--ink); }
.permission-row input:checked::after { transform: translateX(16px); background: var(--ink); }
.generator-submit { width: 100%; justify-content: space-between; margin-top: 24px; }
.generator-privacy { text-align: center; color: var(--ink-soft); font-size: 9px; margin: 12px 0 0; }
.generator-output { min-height: 680px; background: var(--night); color: white; position: sticky; top: calc(var(--header-h) + 22px); }
.output-empty { min-height: 680px; padding: 48px; display: flex; flex-direction: column; justify-content: center; }
.output-empty strong { font-size: clamp(2rem, 4vw, 3.8rem); line-height: 1.02; letter-spacing: -.045em; max-width: 10ch; }
.output-empty p { max-width: 520px; color: var(--night-soft); }
.output-empty code { color: white; }
.output-mark { width: 100px; display: grid; grid-template-columns: 15px 1fr 15px; align-items: center; gap: 7px; margin-bottom: 60px; color: var(--acid); }
.output-mark span { width: 15px; height: 15px; border: 2px solid currentColor; border-radius: 50%; }
.output-mark i { height: 1px; background: currentColor; }
.output-results { padding: 18px; }
.output-results[hidden], .output-empty[hidden] { display: none; }
.output-card { border: 1px solid rgba(255,255,255,.13); border-radius: 17px; overflow: hidden; margin-bottom: 12px; background: rgba(255,255,255,.025); }
.output-toolbar { min-height: 58px; display: flex; align-items: center; justify-content: space-between; gap: 16px; padding: 10px 14px; border-bottom: 1px solid rgba(255,255,255,.1); }
.output-toolbar > div:first-child { display: grid; }
.output-toolbar strong { font-size: 11px; }
.output-kicker { color: var(--night-soft); font-size: 8px; letter-spacing: .11em; text-transform: uppercase; }
.output-actions { display: flex; gap: 6px; }
.output-action { border: 1px solid rgba(255,255,255,.2); color: white; background: transparent; border-radius: 999px; padding: 7px 10px; font-size: 9px; cursor: pointer; }
.output-action:hover, .output-action:focus-visible { background: var(--acid); color: var(--ink); border-color: var(--acid); }
.output-help { margin: 0; padding: 12px 14px 0; color: var(--night-soft); font-size: 9px; }
.output-help code { color: white; }
.output-card pre { margin: 0; padding: 14px; overflow: auto; max-height: 340px; font-size: 10px; line-height: 1.65; color: #dce7e1; }
.policy-meaning { margin: 12px 0; padding: 18px; border: 1px solid rgba(184,255,90,.24); border-radius: 17px; background: rgba(184,255,90,.055); }
.policy-meaning-heading { display: grid; gap: 3px; margin-bottom: 12px; }
.policy-meaning-heading strong { font-size: 13px; }
.policy-meaning ul { margin: 0; padding-left: 18px; display: grid; gap: 8px; color: #dce7e1; font-size: 10px; line-height: 1.55; }
.policy-meaning li::marker { color: var(--acid); }
.install-check { display: grid; gap: 10px; padding: 18px 4px 8px; }
.install-check > span { color: var(--night-soft); font-size: 8px; text-transform: uppercase; letter-spacing: .1em; }
.verify-links { display: grid; gap: 8px; }
.verify-links > div { display: grid; gap: 3px; padding: 9px 11px; border: 1px solid rgba(255,255,255,.1); border-radius: 11px; background: rgba(255,255,255,.025); }
.verify-links small { color: var(--night-soft); font-size: 8px; text-transform: uppercase; letter-spacing: .08em; }
.install-check code { color: var(--acid); font-size: 10px; overflow-wrap: anywhere; }
.validator-preview { margin-top: 20px; border: 1px solid var(--line); border-radius: 20px; padding: 28px; display: flex; align-items: center; justify-content: space-between; background: rgba(255,255,255,.25); }
.validator-preview h3 { margin: 16px 0 7px; font-size: 1.5rem; }
.validator-preview p { margin: 0; color: var(--ink-soft); max-width: 680px; }
.validator-arrow { font-size: 42px; color: var(--ink-soft); }
.spec-section { background: var(--paper); }
.spec-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 100px; align-items: start; }
.spec-copy { color: var(--ink-soft); font-size: 1.02rem; }
.spec-copy strong, .spec-copy code { color: var(--ink); }
.spec-link { display: inline-flex; margin-top: 18px; text-decoration: none; }

@media (max-width: 980px) {
  .generator-heading, .generator-layout, .spec-grid { grid-template-columns: 1fr; gap: 36px; }
  .generator-output { position: static; min-height: 500px; }
  .output-empty { min-height: 500px; }
}

@media (max-width: 720px) {
  .generator-heading h2, .spec-grid h2 { font-size: 2.6rem; }
  .generator-form { padding-inline: 18px; }
  .generator-step { grid-template-columns: 30px 1fr; gap: 8px; }
  .preset-grid { grid-template-columns: 1fr; }
  .preset-card { min-height: 68px; }
  .output-empty { padding: 28px; }
  .output-results { padding: 10px; }
  .output-toolbar { align-items: flex-start; }
  .validator-preview { align-items: flex-start; }
  .validator-arrow { display: none; }
}

/* IETF Internet-Draft announcement */
.ietf-banner {
  margin-top: 2rem;
  margin-bottom: 2rem;
  padding: 1.4rem 1.5rem;
  border: 1px solid rgba(41, 91, 72, 0.28);
  border-radius: 18px;
  background: rgba(41, 91, 72, 0.055);
}

.ietf-banner-label {
  margin-bottom: 0.75rem;
  font-size: 0.76rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.ietf-banner-content {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 2rem;
}

.ietf-banner h3 {
  margin: 0 0 0.45rem;
  font-size: clamp(1.25rem, 2vw, 1.75rem);
}

.ietf-banner p {
  margin: 0.3rem 0;
}

.ietf-banner code {
  font-size: 0.86rem;
}

.ietf-banner-link {
  flex: 0 0 auto;
  font-weight: 700;
  text-decoration: none;
  white-space: nowrap;
}

.ietf-banner-link:hover {
  text-decoration: underline;
}

.ietf-banner-note {
  margin-top: 1rem !important;
  font-size: 0.78rem;
  opacity: 0.72;
}

@media (max-width: 720px) {
  .ietf-banner-content {
    display: block;
  }

  .ietf-banner-link {
    display: inline-block;
    margin-top: 1rem;
  }
}