:root {
  color-scheme: dark;
  --bg: #060b10;
  --bg-deep: #03070a;
  --panel: #0a1218;
  --panel-2: #0d171f;
  --panel-3: #101c25;
  --text: #edf5f4;
  --text-soft: #c4d1d1;
  --muted: #84959e;
  --muted-2: #5d6d76;
  --line: rgba(187, 220, 217, 0.13);
  --line-strong: rgba(187, 220, 217, 0.25);
  --accent: #71f6c7;
  --accent-2: #78bfff;
  --warm: #e8b269;
  --danger: #ff7c84;
  --shadow: 0 30px 90px rgba(0, 0, 0, 0.36);
  --sans: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --mono: "SFMono-Regular", "Cascadia Code", "Roboto Mono", Consolas, "Liberation Mono", monospace;
  --shell: 1180px;
  --header-height: 76px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-height) + 28px);
  background: var(--bg);
}

body {
  margin: 0;
  min-width: 320px;
  background:
    radial-gradient(circle at 13% 8%, rgba(113, 246, 199, 0.08), transparent 28rem),
    radial-gradient(circle at 92% 20%, rgba(120, 191, 255, 0.07), transparent 33rem),
    linear-gradient(180deg, #071018 0%, var(--bg) 33%, var(--bg-deep) 100%);
  color: var(--text);
  font-family: var(--sans);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

::selection {
  background: rgba(113, 246, 199, 0.24);
  color: #fff;
}

a {
  color: inherit;
}

button,
input {
  font: inherit;
}

button {
  color: inherit;
}

img {
  max-width: 100%;
}

code {
  font-family: var(--mono);
  color: var(--accent);
  font-size: 0.92em;
}

.shell {
  width: min(calc(100% - 42px), 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;
  z-index: 999;
  left: 18px;
  top: 12px;
  transform: translateY(-160%);
  padding: 11px 15px;
  background: var(--accent);
  color: #04100d;
  font: 700 0.78rem/1 var(--mono);
  text-decoration: none;
  transition: transform 160ms ease;
}

.skip-link:focus {
  transform: translateY(0);
}

.ambient-grid {
  position: fixed;
  z-index: -2;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(121, 174, 165, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(121, 174, 165, 0.035) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: linear-gradient(to bottom, #000 0, rgba(0, 0, 0, 0.46) 36%, transparent 82%);
}

.ambient-grid::after {
  content: "";
  position: absolute;
  inset: 0;
  background: repeating-linear-gradient(180deg, transparent 0 3px, rgba(255, 255, 255, 0.008) 4px);
}

.cursor-halo {
  position: fixed;
  z-index: -1;
  width: 640px;
  height: 640px;
  left: 0;
  top: 0;
  transform: translate3d(calc(var(--pointer-x, 50vw) - 50%), calc(var(--pointer-y, 28vh) - 50%), 0);
  border-radius: 50%;
  background: radial-gradient(circle, rgba(113, 246, 199, 0.055), transparent 66%);
  pointer-events: none;
  transition: opacity 250ms ease;
}

.site-header {
  position: sticky;
  z-index: 80;
  top: 0;
  height: var(--header-height);
  display: flex;
  align-items: center;
  border-bottom: 1px solid transparent;
  transition: background 180ms ease, border-color 180ms ease, backdrop-filter 180ms ease;
}

.site-header.is-scrolled {
  background: rgba(6, 11, 16, 0.84);
  border-color: var(--line);
  backdrop-filter: blur(18px) saturate(140%);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
}

.identity {
  display: inline-flex;
  align-items: center;
  gap: 11px;
  min-width: max-content;
  text-decoration: none;
}

.identity-mark {
  position: relative;
  display: grid;
  place-items: center;
  width: 39px;
  height: 39px;
  border: 1px solid rgba(113, 246, 199, 0.52);
  color: var(--accent);
  font: 700 0.74rem/1 var(--mono);
  letter-spacing: 0.04em;
}

.identity-mark::before,
.identity-mark::after {
  content: "";
  position: absolute;
  width: 7px;
  height: 7px;
  border-color: var(--accent);
}

.identity-mark::before {
  left: -3px;
  top: -3px;
  border-left: 1px solid;
  border-top: 1px solid;
}

.identity-mark::after {
  right: -3px;
  bottom: -3px;
  border-right: 1px solid;
  border-bottom: 1px solid;
}

.identity-mark.small {
  width: 34px;
  height: 34px;
  flex: 0 0 34px;
}

.identity-copy {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.identity-copy strong {
  font-size: 0.84rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.identity-copy small {
  color: var(--muted);
  font: 0.64rem/1.2 var(--mono);
  letter-spacing: 0.08em;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: clamp(16px, 2.3vw, 31px);
}

.site-nav a {
  position: relative;
  color: var(--text-soft);
  font: 600 0.72rem/1 var(--mono);
  letter-spacing: 0.055em;
  text-decoration: none;
  text-transform: uppercase;
  transition: color 150ms ease;
}

.site-nav a:not(.nav-play)::after {
  content: "";
  position: absolute;
  left: 0;
  right: 100%;
  bottom: -8px;
  height: 1px;
  background: var(--accent);
  transition: right 170ms ease;
}

.site-nav a:hover,
.site-nav a:focus-visible {
  color: #fff;
  outline: none;
}

.site-nav a:not(.nav-play):hover::after,
.site-nav a:not(.nav-play):focus-visible::after {
  right: 0;
}

.nav-play {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  min-height: 38px;
  padding: 0 14px;
  border: 1px solid var(--line-strong);
  background: rgba(255, 255, 255, 0.025);
}

.nav-play:hover,
.nav-play:focus-visible {
  border-color: rgba(113, 246, 199, 0.48);
  background: rgba(113, 246, 199, 0.06);
}

.nav-toggle {
  display: none;
}

.hero {
  min-height: calc(100svh - var(--header-height));
  display: grid;
  grid-template-columns: minmax(0, 1.07fr) minmax(340px, 0.78fr);
  align-items: center;
  gap: clamp(56px, 8vw, 118px);
  padding-block: clamp(70px, 10vh, 118px) clamp(100px, 14vh, 160px);
}

.eyebrow {
  margin: 0;
  color: var(--muted);
  font: 600 0.7rem/1.4 var(--mono);
  letter-spacing: 0.115em;
  text-transform: uppercase;
}

.hero-copy > .eyebrow {
  display: flex;
  align-items: center;
  gap: 10px;
}

.live-dot {
  position: relative;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 5px rgba(113, 246, 199, 0.08), 0 0 18px rgba(113, 246, 199, 0.45);
}

.live-dot::after {
  content: "";
  position: absolute;
  inset: -6px;
  border: 1px solid rgba(113, 246, 199, 0.3);
  border-radius: inherit;
  animation: ping 2.4s ease-out infinite;
}

@keyframes ping {
  0% { transform: scale(0.55); opacity: 0; }
  24% { opacity: 1; }
  100% { transform: scale(1.6); opacity: 0; }
}

.hero h1 {
  margin: 26px 0 21px;
  font-size: clamp(4rem, 8.3vw, 7.15rem);
  line-height: 0.84;
  letter-spacing: -0.072em;
  text-wrap: balance;
}

.hero h1 span,
.hero h1 strong {
  display: block;
}

.hero h1 span {
  color: var(--text);
  font-weight: 270;
}

.hero h1 strong {
  color: var(--accent);
  font-weight: 720;
}

.hero-role {
  margin: 0 0 23px;
  color: var(--text-soft);
  font: 600 clamp(0.78rem, 1.2vw, 0.93rem)/1.7 var(--mono);
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.hero-role i {
  margin-inline: 7px;
  color: var(--accent);
  font-style: normal;
}

.hero-intro {
  max-width: 650px;
  margin: 0;
  color: #aebdc2;
  font-size: clamp(1.03rem, 1.65vw, 1.22rem);
  line-height: 1.72;
  letter-spacing: -0.012em;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 35px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  min-height: 50px;
  padding: 0 19px;
  border: 1px solid transparent;
  color: var(--text);
  font: 700 0.75rem/1 var(--mono);
  letter-spacing: 0.045em;
  text-decoration: none;
  text-transform: uppercase;
  transition: transform 150ms ease, border-color 150ms ease, background 150ms ease, color 150ms ease;
}

.button:hover,
.button:focus-visible {
  transform: translateY(-2px);
  outline: none;
}

.button-primary {
  background: var(--accent);
  color: #04110d;
}

.button-primary:hover,
.button-primary:focus-visible {
  background: #a3ffde;
  box-shadow: 0 12px 38px rgba(113, 246, 199, 0.14);
}

.button-primary b {
  animation: blink 1s steps(1) infinite;
}

@keyframes blink {
  50% { opacity: 0; }
}

.button-quiet {
  border-color: var(--line-strong);
  background: rgba(255, 255, 255, 0.025);
}

.button-quiet:hover,
.button-quiet:focus-visible {
  border-color: rgba(113, 246, 199, 0.45);
  background: rgba(113, 246, 199, 0.05);
}

.hero-signals {
  display: flex;
  gap: 0;
  margin-top: 53px;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.hero-signals span {
  flex: 1;
  display: flex;
  align-items: center;
  gap: 10px;
  min-height: 53px;
  color: var(--muted);
  font: 600 0.69rem/1 var(--mono);
  letter-spacing: 0.07em;
  text-transform: uppercase;
}

.hero-signals span + span {
  padding-left: 18px;
  border-left: 1px solid var(--line);
}

.hero-signals b {
  color: var(--accent);
  font-weight: 500;
}

.portrait-module {
  width: min(100%, 430px);
  justify-self: end;
  margin: 0;
}

.portrait-index,
.portrait-module figcaption {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  color: var(--muted);
  font: 600 0.61rem/1 var(--mono);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.portrait-index {
  margin-bottom: 11px;
}

.portrait-frame {
  position: relative;
  padding: 9px;
  border: 1px solid var(--line-strong);
  background: rgba(255, 255, 255, 0.025);
  box-shadow: var(--shadow);
  isolation: isolate;
}

.portrait-frame::before {
  content: "";
  position: absolute;
  z-index: -1;
  inset: -18px 25px 30px -24px;
  border: 1px solid rgba(113, 246, 199, 0.1);
  background:
    linear-gradient(rgba(113, 246, 199, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(113, 246, 199, 0.04) 1px, transparent 1px);
  background-size: 20px 20px;
}

.portrait-frame img {
  display: block;
  width: 100%;
  aspect-ratio: 3 / 4;
  object-fit: cover;
  filter: saturate(0.88) contrast(1.04) brightness(0.93);
}

.portrait-frame::after {
  content: "";
  position: absolute;
  inset: 9px;
  pointer-events: none;
  background:
    linear-gradient(180deg, rgba(3, 7, 10, 0.04), transparent 58%, rgba(3, 7, 10, 0.34)),
    linear-gradient(90deg, rgba(113, 246, 199, 0.06), transparent 28%);
  mix-blend-mode: multiply;
}

.portrait-scan {
  position: absolute;
  z-index: 2;
  left: 9px;
  right: 9px;
  top: 10%;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(113, 246, 199, 0.7), transparent);
  box-shadow: 0 0 18px rgba(113, 246, 199, 0.5);
  opacity: 0.42;
  animation: scan 7s ease-in-out infinite;
}

@keyframes scan {
  0%, 100% { top: 12%; opacity: 0; }
  12% { opacity: 0.45; }
  88% { opacity: 0.45; }
  96% { top: 88%; opacity: 0; }
}

.corner {
  position: absolute;
  z-index: 3;
  width: 20px;
  height: 20px;
  border-color: var(--accent);
  opacity: 0.82;
}

.corner-a { left: 3px; top: 3px; border-left: 2px solid; border-top: 2px solid; }
.corner-b { right: 3px; top: 3px; border-right: 2px solid; border-top: 2px solid; }
.corner-c { right: 3px; bottom: 3px; border-right: 2px solid; border-bottom: 2px solid; }
.corner-d { left: 3px; bottom: 3px; border-left: 2px solid; border-bottom: 2px solid; }

.portrait-module figcaption {
  align-items: center;
  margin-top: 13px;
}

.portrait-module figcaption span:first-child {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--text-soft);
}

.portrait-module figcaption i {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 10px rgba(113, 246, 199, 0.7);
}

.signal-marquee {
  overflow: hidden;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.018);
}

.signal-marquee > div {
  display: flex;
  align-items: center;
  width: max-content;
  min-height: 48px;
  animation: ticker 40s linear infinite;
}

.signal-marquee span {
  padding-inline: 24px;
  color: var(--muted);
  font: 600 0.67rem/1 var(--mono);
  letter-spacing: 0.11em;
}

.signal-marquee i {
  color: var(--accent);
  font-size: 0.42rem;
  font-style: normal;
  opacity: 0.65;
}

@keyframes ticker {
  to { transform: translateX(-50%); }
}

.section {
  padding-block: clamp(110px, 13vw, 170px);
}

.section-heading {
  display: grid;
  grid-template-columns: 0.55fr 1.25fr 0.8fr;
  gap: clamp(28px, 5vw, 78px);
  align-items: start;
  margin-bottom: 70px;
}

.section-heading > div:first-child {
  display: flex;
  align-items: center;
  gap: 15px;
}

.section-number {
  color: var(--accent);
  font: 600 0.65rem/1 var(--mono);
}

.section-number::before {
  content: "[";
  margin-right: 2px;
  color: var(--muted-2);
}

.section-number::after {
  content: "]";
  margin-left: 2px;
  color: var(--muted-2);
}

.section-heading h2 {
  margin: -8px 0 0;
  font-size: clamp(2.4rem, 5vw, 4.65rem);
  line-height: 0.98;
  letter-spacing: -0.05em;
  font-weight: 620;
  text-wrap: balance;
}

.section-heading > p {
  margin: 1px 0 0;
  color: #9dafb6;
  font-size: 1rem;
  line-height: 1.72;
}

.capability-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.capability {
  --gx: 50%;
  --gy: 50%;
  position: relative;
  min-height: 450px;
  padding: 29px 29px 32px;
  overflow: hidden;
  background:
    radial-gradient(380px circle at var(--gx) var(--gy), rgba(113, 246, 199, 0.07), transparent 55%),
    rgba(255, 255, 255, 0.012);
}

.capability + .capability {
  border-left: 1px solid var(--line);
}

.capability::before {
  content: "";
  position: absolute;
  inset: 0;
  border-top: 1px solid transparent;
  pointer-events: none;
  transition: border-color 180ms ease, background 180ms ease;
}

.capability:hover::before {
  border-top-color: var(--accent);
  background: linear-gradient(180deg, rgba(113, 246, 199, 0.03), transparent 28%);
}

.capability-code {
  color: var(--muted);
  font: 600 0.62rem/1 var(--mono);
  letter-spacing: 0.11em;
}

.capability-icon {
  position: relative;
  width: 86px;
  height: 86px;
  margin: 51px 0 43px;
  border: 1px solid var(--line-strong);
  transform: rotate(45deg);
}

.capability-icon span {
  position: absolute;
  border: 1px solid rgba(113, 246, 199, 0.45);
}

.capability-icon span:nth-child(1) { inset: 14px; }
.capability-icon span:nth-child(2) { inset: 29px; background: var(--accent); box-shadow: 0 0 20px rgba(113, 246, 199, 0.35); }
.capability-icon span:nth-child(3) { left: 42px; top: -13px; width: 1px; height: 110px; border: 0; background: rgba(113, 246, 199, 0.17); }

.capability-icon.icon-radar {
  border-radius: 50%;
  transform: none;
}

.capability-icon.icon-radar span {
  border-radius: 50%;
}

.capability-icon.icon-radar span:nth-child(1) { inset: 12px; }
.capability-icon.icon-radar span:nth-child(2) { inset: 31px; }
.capability-icon.icon-radar span:nth-child(3) {
  left: 42px;
  top: 0;
  width: 1px;
  height: 43px;
  border-radius: 0;
  background: var(--accent);
  transform-origin: bottom;
  animation: radar 3.5s linear infinite;
}

@keyframes radar {
  to { transform: rotate(360deg); }
}

.capability-icon.icon-nodes {
  border: 0;
  transform: none;
}

.capability-icon.icon-nodes::before,
.capability-icon.icon-nodes::after {
  content: "";
  position: absolute;
  background: rgba(113, 246, 199, 0.25);
}

.capability-icon.icon-nodes::before { left: 20px; right: 20px; top: 42px; height: 1px; }
.capability-icon.icon-nodes::after { top: 20px; bottom: 20px; left: 42px; width: 1px; }
.capability-icon.icon-nodes span {
  width: 19px;
  height: 19px;
  border-radius: 50%;
  background: var(--panel);
  box-shadow: 0 0 0 6px rgba(113, 246, 199, 0.035);
}
.capability-icon.icon-nodes span:nth-child(1) { left: 0; top: 32px; }
.capability-icon.icon-nodes span:nth-child(2) { left: 33px; top: 0; }
.capability-icon.icon-nodes span:nth-child(3) { left: 66px; top: 32px; }

.capability h3 {
  margin: 0 0 16px;
  font-size: 1.5rem;
  letter-spacing: -0.025em;
}

.capability > p {
  min-height: 97px;
  margin: 0;
  color: #9caeb5;
  font-size: 0.93rem;
  line-height: 1.7;
}

.capability ul {
  display: grid;
  gap: 9px;
  margin: 28px 0 0;
  padding: 22px 0 0;
  border-top: 1px solid var(--line);
  list-style: none;
}

.capability li {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--text-soft);
  font: 500 0.7rem/1.4 var(--mono);
}

.capability li::before {
  content: "+";
  color: var(--accent);
}

.section-history {
  position: relative;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background:
    linear-gradient(90deg, rgba(113, 246, 199, 0.018) 1px, transparent 1px),
    linear-gradient(rgba(113, 246, 199, 0.018) 1px, transparent 1px),
    #080e13;
  background-size: 60px 60px;
}

.history-layout {
  display: grid;
  grid-template-columns: minmax(260px, 0.7fr) minmax(0, 1.3fr);
  gap: clamp(60px, 10vw, 150px);
}

.section-heading.compact {
  position: sticky;
  top: calc(var(--header-height) + 44px);
  align-self: start;
  display: block;
  margin: 0;
}

.section-heading.compact > div:first-child {
  margin-bottom: 39px;
}

.section-heading.compact h2 {
  margin-bottom: 28px;
}

.section-heading.compact > p {
  max-width: 410px;
}

.timeline {
  position: relative;
}

.timeline::before {
  content: "";
  position: absolute;
  left: 11px;
  top: 12px;
  bottom: 22px;
  width: 1px;
  background: linear-gradient(var(--accent), rgba(113, 246, 199, 0.09));
}

.timeline-item {
  position: relative;
  display: grid;
  grid-template-columns: 24px 115px minmax(0, 1fr);
  gap: 22px;
  padding-bottom: 67px;
}

.timeline-item:last-child {
  padding-bottom: 0;
}

.timeline-marker {
  position: relative;
  z-index: 1;
  display: grid;
  place-items: center;
  width: 23px;
  height: 23px;
  border: 1px solid var(--line-strong);
  background: #080e13;
  transform: rotate(45deg);
}

.timeline-marker span {
  width: 5px;
  height: 5px;
  background: var(--muted-2);
}

.timeline-item.current .timeline-marker {
  border-color: var(--accent);
  box-shadow: 0 0 20px rgba(113, 246, 199, 0.12);
}

.timeline-item.current .timeline-marker span {
  background: var(--accent);
  box-shadow: 0 0 9px rgba(113, 246, 199, 0.55);
}

.timeline-date {
  padding-top: 4px;
  color: var(--muted);
  font: 600 0.67rem/1.45 var(--mono);
  letter-spacing: 0.04em;
}

.timeline-copy {
  padding-bottom: 51px;
  border-bottom: 1px solid var(--line);
}

.timeline-item:last-child .timeline-copy {
  padding-bottom: 0;
  border-bottom: 0;
}

.timeline-org {
  margin: 0 0 9px;
  color: var(--accent);
  font: 600 0.68rem/1.45 var(--mono);
  letter-spacing: 0.065em;
  text-transform: uppercase;
}

.timeline-org span {
  color: var(--muted);
  text-transform: none;
}

.timeline-copy h3 {
  margin: 0 0 16px;
  font-size: clamp(1.35rem, 2.2vw, 1.85rem);
  line-height: 1.2;
  letter-spacing: -0.03em;
}

.timeline-copy > p:not(.timeline-org) {
  margin: 0;
  color: #98aab0;
  line-height: 1.75;
}

.timeline-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 22px;
}

.timeline-tags span {
  padding: 7px 9px;
  border: 1px solid var(--line);
  color: var(--muted);
  font: 600 0.59rem/1 var(--mono);
  letter-spacing: 0.055em;
  text-transform: uppercase;
}

.section-heading.split {
  grid-template-columns: 1.4fr 0.6fr;
  align-items: end;
}

.section-heading.split > div:first-child {
  display: block;
}

.section-heading.split > div:first-child > div {
  display: flex;
  align-items: center;
  gap: 15px;
  margin-bottom: 40px;
}

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

.credential {
  display: grid;
  grid-template-columns: 100px minmax(0, 1fr) auto;
  align-items: center;
  gap: 28px;
  min-height: 139px;
  padding: 25px 10px 25px 0;
  border-bottom: 1px solid var(--line);
  transition: padding-left 180ms ease, background 180ms ease;
}

.credential:hover {
  padding-left: 18px;
  background: linear-gradient(90deg, rgba(113, 246, 199, 0.045), transparent 58%);
}

.credential-type {
  display: grid;
  place-items: center;
  width: 72px;
  height: 72px;
  border: 1px solid var(--line-strong);
  color: var(--accent);
  font: 700 0.72rem/1 var(--mono);
  letter-spacing: 0.045em;
}

.credential h3 {
  margin: 0 0 7px;
  font-size: clamp(1.22rem, 2vw, 1.65rem);
  letter-spacing: -0.025em;
}

.credential p {
  margin: 0;
  color: var(--muted);
  font-size: 0.88rem;
}

.credential-arrow {
  display: grid;
  place-items: center;
  width: 39px;
  height: 39px;
  border: 1px solid var(--line);
  color: var(--muted);
  font-family: var(--mono);
  transition: color 160ms ease, border-color 160ms ease, transform 160ms ease;
}

.credential:hover .credential-arrow {
  color: var(--accent);
  border-color: rgba(113, 246, 199, 0.4);
  transform: translate(3px, -3px);
}

.terminal-section {
  padding-top: clamp(75px, 9vw, 115px);
}

.section-heading.terminal-heading {
  grid-template-columns: 0.55fr 0.95fr 1fr;
  margin-bottom: 54px;
}

.terminal-window {
  overflow: hidden;
  border: 1px solid rgba(113, 246, 199, 0.23);
  background: rgba(3, 9, 12, 0.94);
  box-shadow: 0 35px 100px rgba(0, 0, 0, 0.43), inset 0 0 80px rgba(113, 246, 199, 0.015);
}

.terminal-bar {
  min-height: 48px;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  padding: 0 16px;
  border-bottom: 1px solid var(--line);
  background: #0b1319;
  color: var(--muted);
  font: 600 0.63rem/1 var(--mono);
  letter-spacing: 0.04em;
}

.terminal-lights {
  display: flex;
  gap: 7px;
}

.terminal-lights i {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--muted-2);
}

.terminal-lights i:nth-child(1) { background: #ff6f79; }
.terminal-lights i:nth-child(2) { background: #e8b269; }
.terminal-lights i:nth-child(3) { background: var(--accent); }

.terminal-secure {
  justify-self: end;
  display: flex;
  align-items: center;
  gap: 7px;
}

.terminal-secure i {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 8px rgba(113, 246, 199, 0.55);
}

.terminal-body {
  min-height: 330px;
  max-height: 470px;
  overflow-y: auto;
  padding: 30px 30px 10px;
  scrollbar-width: thin;
  scrollbar-color: var(--muted-2) transparent;
  color: #d8e6e2;
  font: 500 0.83rem/1.68 var(--mono);
}

.terminal-line {
  overflow-wrap: anywhere;
}

.terminal-line.spacer {
  height: 13px;
}

.terminal-line.muted {
  color: var(--muted);
}

.terminal-line.command {
  color: var(--text);
}

.terminal-line.command::before {
  content: "visitor@gabriel:~$ ";
  color: var(--accent);
}

.terminal-line.response {
  padding-left: 18px;
  color: #aabdbd;
}

.terminal-line.response::before {
  content: "└─ ";
  margin-left: -18px;
  color: var(--muted-2);
}

.terminal-line.error {
  color: var(--danger);
}

.terminal-line a {
  color: var(--accent);
  text-underline-offset: 4px;
}

.terminal-form {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 11px 30px 23px;
  font: 500 0.83rem/1.4 var(--mono);
}

.terminal-prompt {
  flex: 0 0 auto;
  color: var(--accent);
}

.terminal-form input {
  min-width: 0;
  flex: 1;
  border: 0;
  padding: 5px 0;
  outline: 0;
  background: transparent;
  color: #fff;
  caret-color: transparent;
  font-family: var(--mono);
}

.terminal-cursor {
  width: 8px;
  height: 17px;
  margin-left: -8px;
  background: var(--accent);
  opacity: 0.78;
  animation: blink 1s steps(1) infinite;
  pointer-events: none;
}

.terminal-form:focus-within .terminal-cursor {
  opacity: 1;
}

.terminal-shortcuts {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  padding: 14px 30px 19px;
  border-top: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.012);
}

.terminal-shortcuts button {
  border: 1px solid var(--line);
  padding: 7px 10px;
  background: transparent;
  color: var(--muted);
  font: 600 0.62rem/1 var(--mono);
  cursor: pointer;
  transition: color 150ms ease, border-color 150ms ease, background 150ms ease;
}

.terminal-shortcuts button:hover,
.terminal-shortcuts button:focus-visible {
  border-color: rgba(113, 246, 199, 0.4);
  background: rgba(113, 246, 199, 0.05);
  color: var(--accent);
  outline: none;
}

.play-callout {
  border-top: 1px solid var(--line);
  background:
    radial-gradient(circle at 75% 50%, rgba(113, 246, 199, 0.07), transparent 34rem),
    #081017;
}

.play-callout-inner {
  min-height: 350px;
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 60px;
  align-items: center;
}

.play-callout h2 {
  max-width: 780px;
  margin: 20px 0 15px;
  font-size: clamp(2.6rem, 5.5vw, 5rem);
  line-height: 0.96;
  letter-spacing: -0.055em;
}

.play-callout p:not(.eyebrow) {
  margin: 0;
  color: var(--muted);
  line-height: 1.7;
}

.play-launch {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 25px;
  min-width: 250px;
  min-height: 72px;
  padding: 0 22px;
  border: 1px solid rgba(113, 246, 199, 0.4);
  background: rgba(113, 246, 199, 0.055);
  color: var(--text);
  font: 700 0.72rem/1.2 var(--mono);
  letter-spacing: 0.04em;
  text-decoration: none;
  text-transform: uppercase;
  transition: background 160ms ease, transform 160ms ease, color 160ms ease;
}

.play-launch b {
  color: var(--accent);
  font-size: 1.2rem;
}

.play-launch:hover,
.play-launch:focus-visible {
  transform: translateY(-3px);
  background: var(--accent);
  color: #04110d;
  outline: none;
}

.play-launch:hover b,
.play-launch:focus-visible b {
  color: inherit;
}

.site-footer {
  border-top: 1px solid var(--line);
  background: var(--bg-deep);
}

.footer-inner {
  min-height: 180px;
  display: grid;
  grid-template-columns: 1fr auto auto;
  align-items: center;
  gap: 55px;
}

.footer-inner > div {
  display: flex;
  align-items: center;
  gap: 16px;
}

.footer-inner p {
  margin: 0;
  font-size: 0.81rem;
  line-height: 1.5;
}

.footer-inner p span {
  color: var(--muted);
  font: 0.6rem/1.45 var(--mono);
  letter-spacing: 0.035em;
  text-transform: uppercase;
}

.footer-inner nav {
  display: flex;
  gap: 22px;
}

.footer-inner nav a,
.copyright {
  color: var(--muted);
  font: 600 0.63rem/1 var(--mono) !important;
  letter-spacing: 0.055em;
  text-decoration: none;
  text-transform: uppercase;
}

.footer-inner nav a:hover,
.footer-inner nav a:focus-visible {
  color: var(--accent);
  outline: none;
}

[data-reveal] {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 700ms cubic-bezier(0.22, 1, 0.36, 1), transform 700ms cubic-bezier(0.22, 1, 0.36, 1);
  transition-delay: var(--reveal-delay, 0ms);
}

[data-reveal].is-visible {
  opacity: 1;
  transform: none;
}

/* Play landing page */
.play-page {
  min-height: 100vh;
}

.simple-header {
  min-height: 78px;
  display: flex;
  align-items: center;
  border-bottom: 1px solid var(--line);
  background: rgba(6, 11, 16, 0.82);
  backdrop-filter: blur(18px);
}

.simple-header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.back-link {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  color: var(--muted);
  font: 600 0.68rem/1 var(--mono);
  text-decoration: none;
  text-transform: uppercase;
}

.back-link:hover,
.back-link:focus-visible {
  color: var(--accent);
  outline: none;
}

.play-hero {
  padding-block: clamp(80px, 11vw, 145px) 70px;
}

.play-hero-grid {
  display: grid;
  grid-template-columns: 1fr 0.6fr;
  gap: 90px;
  align-items: end;
}

.play-hero h1 {
  max-width: 900px;
  margin: 25px 0 0;
  font-size: clamp(4rem, 10vw, 8rem);
  line-height: 0.84;
  letter-spacing: -0.075em;
}

.play-hero h1 span {
  color: var(--accent);
}

.play-hero-note {
  padding: 24px 0 4px 27px;
  border-left: 1px solid var(--accent);
  color: var(--muted);
  line-height: 1.75;
}

.game-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 18px;
  padding-bottom: clamp(90px, 12vw, 150px);
}

.game-card {
  position: relative;
  min-height: 520px;
  display: flex;
  flex-direction: column;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.017);
  color: inherit;
  text-decoration: none;
  overflow: hidden;
  transition: transform 190ms ease, border-color 190ms ease, background 190ms ease;
}

.game-card:hover,
.game-card:focus-visible {
  transform: translateY(-7px);
  border-color: rgba(113, 246, 199, 0.43);
  background: rgba(113, 246, 199, 0.025);
  outline: none;
}

.game-preview {
  position: relative;
  height: 310px;
  overflow: hidden;
  border-bottom: 1px solid var(--line);
  background: #070e14;
}

.game-card-copy {
  flex: 1;
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 20px;
  align-items: end;
  padding: 31px;
}

.game-card-copy .eyebrow {
  grid-column: 1 / -1;
}

.game-card h2 {
  margin: 12px 0 7px;
  font-size: clamp(2.3rem, 4.5vw, 4rem);
  line-height: 0.95;
  letter-spacing: -0.05em;
}

.game-card p {
  max-width: 520px;
  margin: 0;
  color: var(--muted);
  line-height: 1.65;
}

.game-arrow {
  display: grid;
  place-items: center;
  width: 49px;
  height: 49px;
  border: 1px solid var(--line-strong);
  color: var(--accent);
  font: 1.2rem/1 var(--mono);
}

.dx-preview {
  background:
    radial-gradient(circle at 50% 90%, rgba(113, 246, 199, 0.12), transparent 44%),
    linear-gradient(180deg, #0a1620, #050a0e);
}

.preview-bricks {
  position: absolute;
  left: 9%;
  right: 9%;
  top: 15%;
  display: grid;
  grid-template-columns: repeat(8, 1fr);
  gap: 7px;
  transform: perspective(700px) rotateX(7deg);
}

.preview-bricks i {
  height: 18px;
  border: 1px solid rgba(113, 246, 199, 0.36);
  background: linear-gradient(135deg, rgba(113, 246, 199, 0.2), rgba(120, 191, 255, 0.06));
  box-shadow: inset 0 1px rgba(255, 255, 255, 0.08);
}

.preview-bricks i:nth-child(3n) { border-color: rgba(120, 191, 255, 0.42); }
.preview-bricks i:nth-child(5n) { border-color: rgba(232, 178, 105, 0.48); }
.preview-bricks i:nth-child(7n) { visibility: hidden; }

.preview-ball {
  position: absolute;
  left: 58%;
  top: 59%;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: #fff;
  box-shadow: 0 0 20px rgba(113, 246, 199, 0.8);
}

.preview-ball::after {
  content: "";
  position: absolute;
  right: 9px;
  bottom: 9px;
  width: 90px;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(113, 246, 199, 0.55));
  transform: rotate(37deg);
  transform-origin: right;
}

.preview-paddle {
  position: absolute;
  left: 39%;
  bottom: 14%;
  width: 22%;
  height: 9px;
  background: var(--accent);
  box-shadow: 0 0 20px rgba(113, 246, 199, 0.28);
}

.sudoku-preview {
  display: grid;
  place-items: center;
  background:
    radial-gradient(circle at 50% 50%, rgba(120, 191, 255, 0.1), transparent 44%),
    #080f15;
}

.preview-sudoku-board {
  width: 220px;
  aspect-ratio: 1;
  display: grid;
  grid-template-columns: repeat(9, 1fr);
  border: 2px solid rgba(113, 246, 199, 0.56);
  box-shadow: 0 24px 70px rgba(0, 0, 0, 0.35);
  transform: rotate(-2deg);
}

.preview-sudoku-board span {
  display: grid;
  place-items: center;
  border-right: 1px solid rgba(187, 220, 217, 0.1);
  border-bottom: 1px solid rgba(187, 220, 217, 0.1);
  color: #b9c9cb;
  font: 600 0.7rem/1 var(--mono);
}

.preview-sudoku-board span:nth-child(3n) { border-right-color: rgba(113, 246, 199, 0.38); }
.preview-sudoku-board span:nth-child(n+19):nth-child(-n+27),
.preview-sudoku-board span:nth-child(n+46):nth-child(-n+54) { border-bottom-color: rgba(113, 246, 199, 0.38); }
.preview-sudoku-board span:nth-child(4n) { color: var(--accent); }

.play-footer-note {
  padding: 25px 0;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font: 0.65rem/1.6 var(--mono);
  text-align: center;
}

/* 404 */
.error-page {
  min-height: 100svh;
  display: grid;
  place-items: center;
  padding: 24px;
  text-align: center;
}

.error-card {
  width: min(680px, 100%);
  padding: clamp(45px, 8vw, 85px);
  border: 1px solid var(--line-strong);
  background: rgba(8, 16, 23, 0.84);
}

.error-code {
  color: var(--accent);
  font: 700 clamp(4.5rem, 17vw, 10rem)/0.8 var(--mono);
  letter-spacing: -0.08em;
}

.error-card h1 {
  margin: 32px 0 14px;
  font-size: clamp(2rem, 5vw, 3.8rem);
  letter-spacing: -0.045em;
}

.error-card p {
  margin: 0 auto 28px;
  color: var(--muted);
  line-height: 1.7;
}

@media (max-width: 1020px) {
  .hero {
    grid-template-columns: 1fr minmax(310px, 0.65fr);
    gap: 58px;
  }

  .hero h1 {
    font-size: clamp(3.8rem, 8.8vw, 6rem);
  }

  .section-heading {
    grid-template-columns: 0.42fr 1.2fr 0.8fr;
    gap: 35px;
  }

  .capability {
    padding-inline: 22px;
  }

  .history-layout {
    grid-template-columns: 0.75fr 1.25fr;
    gap: 65px;
  }
}

@media (max-width: 820px) {
  :root { --header-height: 68px; }

  .shell {
    width: min(calc(100% - 30px), var(--shell));
  }

  .nav-toggle {
    position: relative;
    z-index: 2;
    display: inline-flex;
    align-items: center;
    gap: 10px;
    min-height: 38px;
    padding: 0 12px;
    border: 1px solid var(--line);
    background: transparent;
    color: var(--text-soft);
    font: 600 0.65rem/1 var(--mono);
    text-transform: uppercase;
    cursor: pointer;
  }

  .nav-toggle i,
  .nav-toggle i::before,
  .nav-toggle i::after {
    display: block;
    width: 16px;
    height: 1px;
    background: currentColor;
    transition: transform 150ms ease, opacity 150ms ease;
  }

  .nav-toggle i {
    position: relative;
  }

  .nav-toggle i::before,
  .nav-toggle i::after {
    content: "";
    position: absolute;
    left: 0;
  }

  .nav-toggle i::before { top: -5px; }
  .nav-toggle i::after { top: 5px; }

  .nav-toggle[aria-expanded="true"] i { background: transparent; }
  .nav-toggle[aria-expanded="true"] i::before { transform: translateY(5px) rotate(45deg); }
  .nav-toggle[aria-expanded="true"] i::after { transform: translateY(-5px) rotate(-45deg); }

  .site-nav {
    position: fixed;
    z-index: 1;
    inset: var(--header-height) 0 auto;
    display: grid;
    gap: 0;
    padding: 12px 15px 18px;
    border-bottom: 1px solid var(--line);
    background: rgba(6, 11, 16, 0.97);
    backdrop-filter: blur(18px);
    transform: translateY(-120%);
    opacity: 0;
    pointer-events: none;
    transition: transform 180ms ease, opacity 180ms ease;
  }

  .site-nav.is-open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }

  .site-nav a {
    padding: 17px 4px;
    border-bottom: 1px solid var(--line);
  }

  .site-nav a::after { display: none; }

  .nav-play {
    margin-top: 12px;
    justify-content: space-between;
    border-bottom: 1px solid var(--line-strong) !important;
  }

  .hero {
    min-height: auto;
    grid-template-columns: 1fr;
    gap: 75px;
    padding-block: 80px 110px;
  }

  .hero-copy {
    max-width: 720px;
  }

  .hero h1 {
    font-size: clamp(4rem, 14vw, 7rem);
  }

  .portrait-module {
    width: min(84vw, 470px);
    justify-self: center;
  }

  .section-heading,
  .section-heading.terminal-heading {
    grid-template-columns: 1fr;
    gap: 25px;
  }

  .section-heading > div:first-child {
    margin-bottom: 12px;
  }

  .section-heading h2 {
    max-width: 660px;
  }

  .section-heading > p {
    max-width: 620px;
  }

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

  .capability {
    min-height: auto;
    padding: 30px 28px 36px;
  }

  .capability + .capability {
    border-left: 0;
    border-top: 1px solid var(--line);
  }

  .capability-icon {
    margin: 40px 0 35px;
  }

  .capability > p {
    min-height: 0;
  }

  .history-layout {
    grid-template-columns: 1fr;
  }

  .section-heading.compact {
    position: static;
    max-width: 720px;
  }

  .section-heading.compact > div:first-child {
    margin-bottom: 29px;
  }

  .section-heading.split {
    grid-template-columns: 1fr;
    align-items: start;
  }

  .play-callout-inner {
    min-height: auto;
    grid-template-columns: 1fr;
    gap: 38px;
    padding-block: 80px;
  }

  .play-launch {
    width: min(100%, 330px);
  }

  .footer-inner {
    min-height: auto;
    grid-template-columns: 1fr;
    gap: 30px;
    padding-block: 50px;
  }

  .footer-inner nav {
    order: 2;
  }

  .copyright {
    order: 3;
  }

  .play-hero-grid {
    grid-template-columns: 1fr;
    gap: 48px;
  }

  .play-hero-note {
    max-width: 620px;
  }

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

@media (max-width: 560px) {
  .identity-copy { display: none; }

  .hero {
    padding-top: 58px;
  }

  .hero h1 {
    margin-top: 23px;
    font-size: clamp(3.75rem, 18vw, 5.5rem);
  }

  .hero-role {
    max-width: 360px;
  }

  .hero-role i {
    display: none;
  }

  .hero-role::first-line {
    line-height: 2;
  }

  .hero-actions {
    display: grid;
    grid-template-columns: 1fr;
  }

  .button {
    width: 100%;
  }

  .hero-signals span {
    min-height: 48px;
    gap: 5px;
    font-size: 0.58rem;
  }

  .hero-signals span + span {
    padding-left: 9px;
  }

  .portrait-module {
    width: 100%;
  }

  .portrait-module figcaption span:last-child {
    display: none;
  }

  .section {
    padding-block: 95px;
  }

  .section-heading {
    margin-bottom: 48px;
  }

  .section-heading h2 {
    font-size: clamp(2.65rem, 13vw, 4rem);
  }

  .timeline-item {
    grid-template-columns: 22px 1fr;
    gap: 17px;
  }

  .timeline-date {
    grid-column: 2;
    grid-row: 1;
    margin-bottom: 6px;
  }

  .timeline-copy {
    grid-column: 2;
  }

  .credential {
    grid-template-columns: 65px minmax(0, 1fr) auto;
    gap: 15px;
    min-height: 115px;
  }

  .credential-type {
    width: 57px;
    height: 57px;
  }

  .credential-arrow {
    width: 34px;
    height: 34px;
  }

  .terminal-bar {
    grid-template-columns: 1fr auto;
  }

  .terminal-bar > span:nth-child(2) {
    display: none;
  }

  .terminal-body {
    min-height: 310px;
    padding: 23px 17px 8px;
    font-size: 0.75rem;
  }

  .terminal-form {
    gap: 7px;
    padding: 10px 17px 20px;
    font-size: 0.72rem;
  }

  .terminal-prompt {
    max-width: 114px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
  }

  .terminal-shortcuts {
    padding-inline: 17px;
  }

  .play-callout h2 {
    font-size: clamp(2.65rem, 13vw, 4rem);
  }

  .footer-inner nav {
    flex-wrap: wrap;
  }

  .play-hero {
    padding-top: 68px;
  }

  .play-hero h1 {
    font-size: clamp(4.1rem, 22vw, 6.4rem);
  }

  .game-card {
    min-height: 480px;
  }

  .game-preview {
    height: 265px;
  }

  .game-card-copy {
    padding: 25px 22px;
  }

  .preview-sudoku-board {
    width: 190px;
  }
}

@media (hover: none), (pointer: coarse) {
  .cursor-halo {
    display: none;
  }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }

  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

  [data-reveal] {
    opacity: 1;
    transform: none;
  }
}

/* Not-found route */
.error-page { min-height: 100dvh; display: grid; place-items: center; overflow: hidden; }
.error-shell { position: relative; z-index: 2; width: min(760px, calc(100% - 40px)); padding: 52px 0; }
.error-shell .identity { margin-bottom: clamp(60px, 12vh, 120px); }
.error-code { position: absolute; z-index: -1; top: 70px; right: -0.04em; color: rgba(113, 246, 199, 0.045); font: 800 clamp(9rem, 31vw, 20rem)/0.8 var(--mono); letter-spacing: -0.1em; }
.error-shell h1 { max-width: 680px; margin: 13px 0 20px; font-size: clamp(3.2rem, 10vw, 7.2rem); line-height: 0.87; letter-spacing: -0.075em; }
.error-shell > p:not(.eyebrow) { max-width: 580px; margin: 0; color: var(--muted); font-size: clamp(0.95rem, 2vw, 1.1rem); line-height: 1.75; }
.error-shell .hero-actions { margin-top: 32px; }