:root {
  --void: #02050c;
  --deep: #040c2c;
  --panel: rgba(5, 15, 40, 0.72);
  --panel-soft: rgba(7, 20, 48, 0.42);
  --ioc: #4cb0e2;
  --ioc-bright: #9edfff;
  --text: #f4f8fb;
  --text-soft: #c7d6e0;
  --muted: #8da2b0;
  --dim: #5d7383;
  --line: rgba(76, 176, 226, 0.26);
  --line-soft: rgba(76, 176, 226, 0.12);
  --mono: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
  --sans: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color-scheme: dark;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

html,
body {
  max-width: 100%;
}

body {
  margin: 0;
  overflow-x: hidden;
  color: var(--text);
  background:
    radial-gradient(circle at 78% 7%, rgba(76, 176, 226, 0.14), transparent 26rem),
    radial-gradient(circle at 16% 28%, rgba(47, 98, 165, 0.16), transparent 24rem),
    linear-gradient(180deg, #02050c 0%, #040c2c 42%, #02050c 100%);
  font-family: var(--sans);
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -2;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(76, 176, 226, 0.032) 1px, transparent 1px),
    linear-gradient(90deg, rgba(76, 176, 226, 0.028) 1px, transparent 1px);
  background-size: 80px 80px;
  mask-image: linear-gradient(180deg, black 0%, rgba(0, 0, 0, 0.72) 58%, transparent 100%);
}

body::after {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background:
    linear-gradient(90deg, transparent 0, transparent calc(50% - 1px), rgba(76, 176, 226, 0.12) 50%, transparent calc(50% + 1px)),
    linear-gradient(180deg, rgba(255, 255, 255, 0.035), transparent 18rem);
  opacity: 0.55;
}

a {
  color: inherit;
  text-decoration: none;
}

img {
  display: block;
  max-width: 100%;
}

p,
h1,
h2,
h3,
dl {
  margin-top: 0;
}

.site-header,
main,
.footer {
  width: min(1180px, calc(100% - 32px));
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 28px;
  align-items: center;
  min-height: 68px;
}

.site-header::before {
  content: "";
  position: absolute;
  inset: 0 -16px;
  z-index: -1;
  border-bottom: 1px solid var(--line-soft);
  background: rgba(2, 5, 12, 0.9);
  backdrop-filter: blur(18px);
}

.brand {
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 900;
  letter-spacing: 0;
}

.brand img,
.genesis-panel img,
.footer img {
  filter: drop-shadow(0 0 18px rgba(76, 176, 226, 0.46));
}

.nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 18px;
}

.nav a {
  min-height: 34px;
  display: inline-flex;
  align-items: center;
  color: var(--text-soft);
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.nav a::before {
  content: "/";
  margin-right: 7px;
  color: var(--ioc);
}

.nav a:hover,
.nav a:focus-visible {
  color: var(--text);
}

.nav a:focus-visible,
.hero-actions a:focus-visible,
.access-list a:focus-visible,
.footer-links a:focus-visible,
.dions-intro a:focus-visible {
  outline: 2px solid var(--ioc-bright);
  outline-offset: 4px;
}

.signal-hero {
  position: relative;
  min-height: calc(100vh - 68px);
  display: grid;
  grid-template-rows: auto 1fr auto;
  align-items: center;
  overflow: hidden;
  padding: 44px 0 36px;
  border-bottom: 1px solid var(--line-soft);
}

.signal-hero::before,
.signal-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.signal-hero::before {
  background:
    radial-gradient(circle at 50% 46%, rgba(76, 176, 226, 0.34), transparent 6rem),
    radial-gradient(circle at 50% 48%, rgba(76, 176, 226, 0.15), transparent 21rem),
    linear-gradient(110deg, transparent 0 38%, rgba(76, 176, 226, 0.08) 44%, transparent 52%),
    linear-gradient(250deg, transparent 0 45%, rgba(158, 223, 255, 0.06) 51%, transparent 60%);
  animation: heroLight 8s ease-in-out infinite alternate;
}

.signal-hero::after {
  background-image:
    linear-gradient(rgba(76, 176, 226, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(76, 176, 226, 0.036) 1px, transparent 1px);
  background-size: 54px 54px;
  mask-image: radial-gradient(circle at 50% 48%, black 0 30rem, transparent 46rem);
  animation: gridDrift 18s linear infinite;
}

.signal-copy {
  position: relative;
  z-index: 2;
  max-width: 720px;
}

.signal-copy h1 {
  margin-bottom: 14px;
  font-size: 68px;
  line-height: 0.95;
  letter-spacing: 0;
  text-shadow:
    0 0 22px rgba(76, 176, 226, 0.28),
    0 0 54px rgba(76, 176, 226, 0.18);
}

.signal-copy p:last-child {
  max-width: 680px;
  margin-bottom: 0;
  color: var(--text-soft);
  font-size: 18px;
  line-height: 1.65;
}

.protocol-core {
  position: relative;
  z-index: 1;
  place-self: center;
  width: min(58vw, 620px);
  aspect-ratio: 1;
  display: grid;
  place-items: center;
  margin-top: -38px;
}

.protocol-core::before,
.protocol-core::after,
.core-light {
  content: "";
  position: absolute;
  inset: 50%;
  transform: translate(-50%, -50%);
  border-radius: 50%;
  pointer-events: none;
}

.protocol-core::before {
  width: 100%;
  height: 100%;
  border: 1px solid rgba(76, 176, 226, 0.22);
  box-shadow:
    inset 0 0 52px rgba(76, 176, 226, 0.08),
    0 0 88px rgba(76, 176, 226, 0.08);
}

.protocol-core::after {
  width: 44%;
  height: 44%;
  border: 1px solid rgba(158, 223, 255, 0.36);
  box-shadow:
    inset 0 0 34px rgba(76, 176, 226, 0.12),
    0 0 56px rgba(76, 176, 226, 0.22);
  animation: corePulse 3.4s ease-in-out infinite;
}

.core-light {
  width: 72%;
  height: 72%;
  background:
    radial-gradient(circle, rgba(76, 176, 226, 0.28), transparent 29%),
    conic-gradient(from 90deg, transparent, rgba(76, 176, 226, 0.36), transparent, rgba(158, 223, 255, 0.22), transparent);
  filter: blur(16px);
  opacity: 0.76;
  animation: slowSpin 18s linear infinite;
}

.protocol-core img {
  position: relative;
  z-index: 3;
  width: min(24vw, 158px);
  min-width: 104px;
  height: auto;
  filter:
    drop-shadow(0 0 22px rgba(76, 176, 226, 0.72))
    drop-shadow(0 0 62px rgba(76, 176, 226, 0.38));
  animation: logoFloat 4.8s ease-in-out infinite;
}

.orbit {
  position: absolute;
  inset: 50%;
  border: 1px solid rgba(76, 176, 226, 0.22);
  border-radius: 50%;
  transform: translate(-50%, -50%);
}

.orbit-a {
  width: 86%;
  height: 86%;
  animation: slowSpin 22s linear infinite;
}

.orbit-b {
  width: 67%;
  height: 67%;
  transform: translate(-50%, -50%) rotateX(64deg);
  animation: reverseSpin 16s linear infinite;
}

.orbit-c {
  width: 48%;
  height: 48%;
  transform: translate(-50%, -50%) rotateY(58deg);
  animation: slowSpin 12s linear infinite;
}

.orbit span {
  position: absolute;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--ioc);
  box-shadow: 0 0 18px rgba(76, 176, 226, 0.86);
}

.orbit span:first-child {
  top: -5px;
  left: 50%;
}

.orbit span:last-child {
  right: 12%;
  bottom: 12%;
  width: 6px;
  height: 6px;
  opacity: 0.78;
}

.scan-beam {
  position: absolute;
  left: 50%;
  top: 50%;
  width: 1px;
  height: 120%;
  transform-origin: center;
  background: linear-gradient(180deg, transparent, rgba(158, 223, 255, 0.54), transparent);
  opacity: 0.38;
}

.beam-a {
  animation: beamSweep 9s linear infinite;
}

.beam-b {
  animation: beamSweep 13s linear infinite reverse;
}

.signal-readout {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  border-top: 1px solid var(--line);
  border-left: 1px solid var(--line);
}

.signal-readout span {
  min-height: 54px;
  display: flex;
  align-items: center;
  padding: 0 16px;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  color: var(--ioc-bright);
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 900;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  background: rgba(5, 15, 40, 0.24);
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 350px;
  gap: 44px;
  min-height: 760px;
  align-items: center;
  padding: 78px 0 88px;
  border-bottom: 1px solid var(--line-soft);
}

.hero-main {
  max-width: 800px;
}

.system-line,
.section-head p,
.record-grid span,
.stack-matrix span,
.readout span,
.access-list span,
.genesis-panel dt,
.ledger time {
  color: var(--ioc-bright);
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 900;
  letter-spacing: 0.11em;
  text-transform: uppercase;
}

.system-line {
  margin-bottom: 22px;
  color: rgba(158, 223, 255, 0.84);
}

h1 {
  max-width: 770px;
  margin-bottom: 20px;
  font-size: 40px;
  line-height: 1.08;
  letter-spacing: 0;
}

.thesis h2 {
  max-width: 770px;
  margin-bottom: 20px;
  font-size: 40px;
  line-height: 1.08;
}

.lead {
  max-width: 760px;
  margin-bottom: 28px;
  color: #cad9e3;
  font-size: 18px;
  line-height: 1.68;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0;
  border-top: 1px solid var(--line);
  border-left: 1px solid var(--line);
}

.hero-actions a {
  min-width: 166px;
  min-height: 54px;
  display: inline-flex;
  align-items: center;
  padding: 0 18px;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  color: var(--text);
  font-family: var(--mono);
  font-size: 12px;
  font-weight: 900;
  text-transform: uppercase;
  transition: background 160ms ease, color 160ms ease;
}

.hero-actions a:hover {
  background: rgba(76, 176, 226, 0.1);
  color: white;
}

.genesis-panel {
  position: relative;
  align-self: stretch;
  display: grid;
  align-content: end;
  min-height: 490px;
  padding: 22px;
  border: 1px solid var(--line);
  background:
    linear-gradient(180deg, rgba(76, 176, 226, 0.09), transparent 35%),
    rgba(4, 12, 44, 0.58);
}

.genesis-panel::before {
  content: "origin ledger";
  position: absolute;
  top: 16px;
  left: 20px;
  color: rgba(158, 223, 255, 0.6);
  font-family: var(--mono);
  font-size: 10px;
  font-weight: 900;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.genesis-panel img {
  width: 82px;
  height: 82px;
  margin-bottom: 26px;
}

.genesis-panel dl {
  margin-bottom: 0;
}

.genesis-panel div {
  padding: 15px 0;
  border-top: 1px solid var(--line-soft);
}

.genesis-panel dt {
  margin-bottom: 8px;
}

.genesis-panel dd {
  margin: 0;
  color: var(--text);
  font-size: 16px;
  font-weight: 800;
  line-height: 1.4;
}

.record,
.pressure,
.history,
.stack,
.upgrade,
.access {
  scroll-margin-top: 92px;
  display: grid;
  grid-template-columns: 330px minmax(0, 1fr);
  gap: 48px;
  padding: 72px 0;
  border-bottom: 1px solid var(--line-soft);
}

.section-head {
  position: sticky;
  top: 96px;
  align-self: start;
}

.section-head p {
  margin-bottom: 18px;
  color: rgba(158, 223, 255, 0.78);
}

h2 {
  max-width: 680px;
  margin-bottom: 0;
  font-size: 29px;
  line-height: 1.18;
  letter-spacing: 0;
}

h3 {
  margin-bottom: 8px;
  color: var(--text);
  font-size: 18px;
  line-height: 1.25;
  letter-spacing: 0;
}

.record-grid,
.stack-matrix {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  border-top: 1px solid var(--line);
  border-left: 1px solid var(--line);
}

.record-grid article,
.stack-matrix article {
  min-height: 238px;
  padding: 18px;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: rgba(5, 15, 40, 0.3);
}

.record-grid span,
.stack-matrix span {
  display: block;
  margin-bottom: 34px;
  color: var(--ioc);
}

.record-grid p,
.pressure-table p,
.ledger p,
.stack-matrix p,
.upgrade-body p,
.footer p {
  margin-bottom: 0;
  color: var(--muted);
  font-size: 16px;
  line-height: 1.64;
}

.pressure-table {
  border-top: 1px solid var(--line);
}

.pressure-table article {
  display: grid;
  grid-template-columns: minmax(170px, 0.34fr) minmax(0, 1fr);
  gap: 28px;
  padding: 24px 0;
  border-bottom: 1px solid var(--line-soft);
}

.pressure-table strong {
  color: var(--text);
  font-size: 18px;
  line-height: 1.35;
}

.ledger {
  border-top: 1px solid var(--line);
}

.ledger article {
  display: grid;
  grid-template-columns: 130px minmax(0, 1fr);
  gap: 34px;
  padding: 24px 0;
  border-bottom: 1px solid var(--line-soft);
}

.ledger time {
  color: var(--ioc);
}

.stack-matrix {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.stack-matrix article {
  min-height: 196px;
}

.stack-matrix strong {
  display: block;
  margin-bottom: 10px;
  color: var(--text);
  font-size: 18px;
}

.upgrade-body {
  display: grid;
  gap: 28px;
}

.upgrade-body > p {
  max-width: 820px;
  color: var(--text-soft);
  font-size: 17px;
}

.dions20 {
  position: relative;
}

.dions20::before {
  content: "";
  position: absolute;
  inset: 36px 0 auto 330px;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(76, 176, 226, 0.58), transparent);
  opacity: 0.6;
}

.dions-body {
  gap: 30px;
}

.dions-intro {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 28px;
  align-items: end;
  padding-bottom: 28px;
  border-bottom: 1px solid var(--line);
}

.dions-intro p {
  max-width: 790px;
  margin: 0;
  color: var(--text-soft);
  font-size: 17px;
  line-height: 1.7;
}

.dions-intro a {
  min-height: 52px;
  display: inline-flex;
  align-items: center;
  padding: 0 16px;
  border: 1px solid var(--line);
  color: var(--text);
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 900;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  transition: background 160ms ease, border-color 160ms ease;
}

.dions-intro a:hover,
.dions-intro a:focus-visible {
  background: rgba(76, 176, 226, 0.1);
  border-color: rgba(158, 223, 255, 0.5);
}

.dions-map {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  border-top: 1px solid var(--line);
  border-left: 1px solid var(--line);
}

.dions-map article {
  min-height: 210px;
  padding: 18px;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background:
    linear-gradient(180deg, rgba(76, 176, 226, 0.055), transparent),
    rgba(5, 15, 40, 0.26);
}

.dions-map span {
  display: block;
  margin-bottom: 28px;
  color: var(--ioc);
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 900;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.dions-map strong {
  display: block;
  margin-bottom: 9px;
  color: var(--text);
  font-size: 18px;
  line-height: 1.25;
}

.dions-map p {
  margin: 0;
  color: var(--muted);
  font-size: 16px;
  line-height: 1.62;
}

.readout {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  border-top: 1px solid var(--line);
  border-left: 1px solid var(--line);
}

.readout div {
  min-height: 98px;
  padding: 16px;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: rgba(5, 15, 40, 0.26);
}

.readout span {
  display: block;
  margin-bottom: 12px;
  color: var(--ioc);
}

.readout strong {
  color: var(--text);
  font-size: 17px;
  line-height: 1.35;
}

.access-list {
  display: grid;
  border-top: 1px solid var(--line);
}

.access-list a {
  display: grid;
  grid-template-columns: 128px minmax(0, 1fr);
  gap: 20px;
  min-height: 66px;
  align-items: center;
  padding: 13px 0;
  border-bottom: 1px solid var(--line-soft);
  transition: background 160ms ease, padding 160ms ease;
}

.access-list a:hover {
  padding-left: 14px;
  background: rgba(76, 176, 226, 0.08);
}

.access-list span {
  color: var(--ioc);
}

.access-list strong {
  color: var(--text);
  font-size: 16px;
  line-height: 1.35;
}

.footer {
  display: grid;
  grid-template-columns: minmax(220px, 0.8fr) minmax(0, 1.7fr);
  gap: 42px;
  align-items: start;
  padding: 34px 0 22px;
  border-top: 1px solid var(--line-soft);
}

.footer-brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 900;
  margin-bottom: 12px;
}

.footer p {
  font-size: 13px;
}

.footer-links {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 28px;
}

.footer-links div {
  display: grid;
  gap: 9px;
}

.footer-links h2 {
  margin: 0 0 8px;
  color: var(--ioc-bright);
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 900;
  letter-spacing: 0.11em;
  line-height: 1.2;
  text-transform: uppercase;
}

.footer-links a {
  color: var(--text-soft);
  font-size: 14px;
  line-height: 1.35;
  transition: color 160ms ease, transform 160ms ease;
}

.footer-links a:hover {
  color: var(--text);
  transform: translateX(4px);
}

.copyright {
  grid-column: 1 / -1;
  padding-top: 22px;
  border-top: 1px solid var(--line-soft);
  color: var(--dim);
}

.dions-page-hero {
  position: relative;
  min-height: calc(100vh - 68px);
  display: grid;
  grid-template-columns: minmax(0, 0.72fr) minmax(420px, 1fr);
  gap: 38px;
  align-items: center;
  overflow: hidden;
  padding: 56px 0 34px;
  border-bottom: 1px solid var(--line-soft);
}

.dions-page-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    radial-gradient(circle at 72% 44%, rgba(76, 176, 226, 0.22), transparent 23rem),
    linear-gradient(120deg, transparent 0 34%, rgba(76, 176, 226, 0.055) 48%, transparent 62%);
}

.dions-page-copy {
  position: relative;
  z-index: 2;
}

.dions-page-copy h1 {
  margin-bottom: 18px;
  font-size: 66px;
  line-height: 0.96;
  text-shadow: 0 0 42px rgba(76, 176, 226, 0.22);
}

.dions-page-copy p:last-child {
  max-width: 620px;
  color: var(--text-soft);
  font-size: 18px;
  line-height: 1.68;
}

.architecture-board {
  position: relative;
  z-index: 1;
  min-height: 620px;
  display: grid;
  grid-template-rows: auto 1fr auto auto;
  gap: 22px;
  padding: 24px;
  border: 1px solid var(--line);
  background:
    linear-gradient(90deg, rgba(76, 176, 226, 0.07), transparent 46%),
    linear-gradient(180deg, rgba(76, 176, 226, 0.06), transparent 32%),
    rgba(5, 15, 40, 0.24);
  overflow: hidden;
}

.architecture-board::before,
.architecture-board::after {
  content: "";
  position: absolute;
  pointer-events: none;
}

.architecture-board::before {
  inset: 18px;
  border: 1px solid rgba(76, 176, 226, 0.16);
}

.architecture-board::after {
  inset: 0;
  background-image:
    linear-gradient(rgba(76, 176, 226, 0.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(76, 176, 226, 0.04) 1px, transparent 1px);
  background-size: 42px 42px;
  mask-image: linear-gradient(180deg, black, rgba(0, 0, 0, 0.36));
}

.board-header {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 18px;
  align-items: center;
  padding-bottom: 18px;
  border-bottom: 1px solid var(--line-soft);
}

.board-header span,
.architecture-notes span,
.module span {
  color: var(--ioc-bright);
  font-family: var(--mono);
  font-size: 10px;
  font-weight: 900;
  letter-spacing: 0.11em;
  text-transform: uppercase;
}

.board-header strong {
  color: var(--text);
  font-size: 15px;
  line-height: 1.25;
  text-align: right;
}

.architecture-flow {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  align-items: center;
  gap: 0;
  margin: 34px 0 12px;
  border-top: 1px solid var(--line);
  border-left: 1px solid var(--line);
}

.module {
  position: relative;
  min-height: 214px;
  display: grid;
  align-content: start;
  gap: 9px;
  padding: 18px 16px;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: rgba(2, 7, 18, 0.54);
}

.module::after {
  content: "";
  position: absolute;
  right: -7px;
  top: calc(50% - 7px);
  z-index: 3;
  width: 13px;
  height: 13px;
  border: 1px solid rgba(158, 223, 255, 0.48);
  background: #06132d;
  rotate: 45deg;
  box-shadow: 0 0 16px rgba(76, 176, 226, 0.32);
}

.module:last-child::after {
  display: none;
}

.module img {
  width: 44px;
  height: 44px;
  margin: 2px 0 8px;
  filter: drop-shadow(0 0 18px rgba(76, 176, 226, 0.5));
}

.module strong {
  color: var(--text);
  font-size: 17px;
  line-height: 1.2;
}

.module p {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.45;
}

.payload-module,
.dvm-module {
  background:
    linear-gradient(180deg, rgba(76, 176, 226, 0.08), transparent),
    rgba(2, 7, 18, 0.58);
}

.architecture-bus {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  height: 42px;
  margin: 2px 0 8px;
}

.architecture-bus::before {
  content: "";
  position: absolute;
  left: 8%;
  right: 8%;
  top: 50%;
  height: 2px;
  background: linear-gradient(90deg, transparent, rgba(76, 176, 226, 0.72), transparent);
  box-shadow: 0 0 18px rgba(76, 176, 226, 0.42);
}

.architecture-bus span {
  position: relative;
}

.architecture-bus span::before {
  content: "";
  position: absolute;
  left: calc(50% - 5px);
  top: calc(50% - 5px);
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--ioc);
  box-shadow: 0 0 18px rgba(76, 176, 226, 0.86);
}

.architecture-notes {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  border-top: 1px solid var(--line-soft);
  border-left: 1px solid var(--line-soft);
}

.architecture-notes div {
  min-height: 82px;
  padding: 14px;
  border-right: 1px solid var(--line-soft);
  border-bottom: 1px solid var(--line-soft);
}

.architecture-notes span {
  display: block;
  margin-bottom: 10px;
}

.architecture-notes strong {
  color: var(--text);
  font-size: 15px;
  line-height: 1.3;
}


.dions-brief,
.dions-layers,
.dions-comparison,
.dions-roadmap,
.dions-actions {
  scroll-margin-top: 92px;
  display: grid;
  grid-template-columns: 330px minmax(0, 1fr);
  gap: 48px;
  padding: 72px 0;
  border-bottom: 1px solid var(--line-soft);
}

.brief-copy {
  display: grid;
  gap: 18px;
  max-width: 830px;
}

.brief-copy p {
  margin: 0;
  color: var(--text-soft);
  font-size: 17px;
  line-height: 1.72;
}

.layer-diagram {
  display: grid;
  gap: 0;
  border-top: 1px solid var(--line);
}

.layer-diagram article {
  display: grid;
  grid-template-columns: 74px minmax(180px, 0.32fr) minmax(0, 1fr);
  gap: 22px;
  align-items: center;
  min-height: 92px;
  padding: 16px 0;
  border-bottom: 1px solid var(--line-soft);
}

.layer-diagram span,
.roadmap-rail time,
.comparison-grid span {
  color: var(--ioc);
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 900;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.layer-diagram strong,
.roadmap-rail strong,
.comparison-grid strong {
  color: var(--text);
  font-size: 18px;
  line-height: 1.25;
}

.layer-diagram p,
.roadmap-rail p,
.comparison-grid p {
  margin: 0;
  color: var(--muted);
  font-size: 16px;
  line-height: 1.62;
}

.comparison-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  border-top: 1px solid var(--line);
  border-left: 1px solid var(--line);
}

.comparison-grid article {
  min-height: 174px;
  padding: 18px;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: rgba(5, 15, 40, 0.28);
}

.comparison-grid span {
  display: block;
  margin-bottom: 28px;
}

.comparison-grid strong {
  display: block;
  margin-bottom: 8px;
}

.roadmap-rail {
  position: relative;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  border-top: 1px solid var(--line);
  border-left: 1px solid var(--line);
}

.roadmap-rail article {
  min-height: 214px;
  padding: 18px;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.roadmap-rail time {
  display: block;
  margin-bottom: 44px;
}

.roadmap-rail strong {
  display: block;
  margin-bottom: 8px;
}

@keyframes slowSpin {
  to {
    rotate: 360deg;
  }
}

@keyframes reverseSpin {
  to {
    rotate: -360deg;
  }
}

@keyframes beamSweep {
  to {
    rotate: 360deg;
  }
}

@keyframes corePulse {
  0%,
  100% {
    opacity: 0.62;
    scale: 0.98;
  }

  50% {
    opacity: 1;
    scale: 1.04;
  }
}

@keyframes logoFloat {
  0%,
  100% {
    transform: translateY(0);
  }

  50% {
    transform: translateY(-10px);
  }
}

@keyframes heroLight {
  from {
    opacity: 0.72;
  }

  to {
    opacity: 1;
  }
}

@keyframes gridDrift {
  to {
    background-position: 54px 54px;
  }
}

@media (max-width: 980px) {
  .site-header,
  .signal-hero,
  .dions-page-hero,
  .hero,
  .record,
  .pressure,
  .history,
  .stack,
  .upgrade,
  .access,
  .dions-brief,
  .dions-layers,
  .dions-comparison,
  .dions-roadmap,
  .dions-actions,
  .footer {
    grid-template-columns: 1fr;
  }

  .nav {
    justify-content: flex-start;
  }

  .signal-hero {
    min-height: auto;
    gap: 38px;
    padding: 52px 0 40px;
  }

  .signal-copy {
    max-width: 100%;
  }

  .protocol-core {
    width: min(82vw, 520px);
    margin-top: 0;
  }

  .dions-page-hero {
    min-height: auto;
  }

  .architecture-board {
    min-height: auto;
  }

  .architecture-flow {
    grid-template-columns: 1fr;
  }

  .module {
    min-height: 128px;
  }

  .module::after {
    right: auto;
    top: auto;
    left: calc(50% - 7px);
    bottom: -7px;
  }

  .architecture-notes {
    grid-template-columns: 1fr;
  }

  .layer-diagram article {
    grid-template-columns: 64px 1fr;
  }

  .layer-diagram p {
    grid-column: 2;
  }

  .roadmap-rail {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .hero {
    min-height: auto;
  }

  .genesis-panel {
    min-height: auto;
  }

  .section-head {
    position: static;
  }

  .record-grid {
    grid-template-columns: 1fr;
  }

  .dions20::before {
    display: none;
  }

  .dions-intro {
    grid-template-columns: 1fr;
    align-items: start;
  }

  .dions-intro a {
    justify-self: start;
  }

  .footer-links {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (max-width: 680px) {
  .site-header,
  main,
  .footer {
    width: calc(100% - 24px);
  }

  .site-header {
    min-height: 64px;
    gap: 8px;
  }

  .site-header::before {
    inset: 0 -12px;
  }

  .nav {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 4px 9px;
  }

  .nav a {
    min-height: 26px;
    font-size: 9px;
    letter-spacing: 0.04em;
  }

  .nav a::before {
    margin-right: 4px;
  }

  .hero {
    padding: 38px 0 52px;
  }

  .signal-copy h1 {
    font-size: 54px;
  }

  .signal-copy p:last-child {
    font-size: 16px;
  }

  .protocol-core {
    width: 94vw;
  }

  .dions-page-hero {
    padding: 46px 0 34px;
    gap: 28px;
  }

  .dions-page-copy h1 {
    font-size: 54px;
  }

  .dions-page-copy p:last-child {
    font-size: 16px;
  }

  .architecture-board {
    padding: 16px;
    gap: 16px;
  }

  .board-header {
    grid-template-columns: 1fr;
  }

  .board-header strong {
    text-align: left;
  }

  .module {
    min-height: 112px;
    padding: 16px;
  }

  .architecture-bus {
    display: none;
  }

  .signal-readout {
    grid-template-columns: 1fr 1fr;
  }

  .signal-readout span {
    min-height: 48px;
    font-size: 10px;
  }

  h1 {
    font-size: 34px;
  }

  .thesis h2 {
    font-size: 34px;
  }

  h2 {
    font-size: 25px;
  }

  .lead,
  .upgrade-body > p {
    font-size: 16px;
  }

  .record,
  .pressure,
  .history,
  .stack,
  .upgrade,
  .access,
  .dions-brief,
  .dions-layers,
  .dions-comparison,
  .dions-roadmap,
  .dions-actions {
    gap: 26px;
    padding: 52px 0;
  }

  .hero-actions a {
    width: 100%;
  }

  .pressure-table article,
  .ledger article,
  .access-list a {
    grid-template-columns: 1fr;
    gap: 8px;
  }

  .stack-matrix,
  .readout,
  .dions-map,
  .comparison-grid,
  .roadmap-rail,
  .footer-links {
    grid-template-columns: 1fr;
  }

  .layer-diagram article {
    grid-template-columns: 1fr;
    gap: 8px;
  }

  .layer-diagram p {
    grid-column: auto;
  }

  .record-grid article,
  .stack-matrix article {
    min-height: auto;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 1ms !important;
    animation-iteration-count: 1 !important;
    scroll-behavior: auto !important;
  }
}