:root {
  --black: #000;
  --white: #fff;
  --dim: rgba(255, 255, 255, 0.68);
  --faint: rgba(255, 255, 255, 0.5);
  --line: rgba(255, 255, 255, 0.14);
  --line-strong: rgba(255, 255, 255, 0.68);
  --unit: 8px;
  --sans: "Instrument Sans", system-ui, sans-serif;
  --mono: "IBM Plex Mono", ui-monospace, monospace;
}

*, *::before, *::after { box-sizing: border-box; }

html { scroll-behavior: smooth; }

html, body {
  width: 100%;
  min-height: 100%;
  background: var(--black);
}

body {
  margin: 0;
  color: var(--white);
  font-family: var(--sans);
  font-size: 15px;
  line-height: 1.45;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

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

code {
  font-family: var(--mono);
  font-size: 0.88em;
  letter-spacing: 0.02em;
}

/* pixel grid — subtle maze field */
.pixel-grid {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background-image:
    linear-gradient(var(--line) 1px, transparent 1px),
    linear-gradient(90deg, var(--line) 1px, transparent 1px);
  background-size: calc(var(--unit) * 2) calc(var(--unit) * 2);
  opacity: 0.35;
  mask-image: linear-gradient(to bottom, rgba(0,0,0,0.5) 0%, transparent 80%);
}

/* ── HEADER ── */
.top-bar {
  position: fixed;
  z-index: 50;
  inset: 0 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: calc(var(--unit) * 8);
  padding: 0 calc(var(--unit) * 5);
  background: linear-gradient(var(--black) 60%, transparent);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: calc(var(--unit) * 1.5);
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.22em;
}

.memory-knot {
  position: relative;
  width: calc(var(--unit) * 2.5);
  height: calc(var(--unit) * 2.5);
  flex-shrink: 0;
}

.memory-knot::before {
  content: "";
  position: absolute;
  inset: 0;
  width: 5px;
  height: 5px;
  background: var(--white);
  box-shadow:
    5px 0 var(--white), 10px 0 var(--white), 15px 0 var(--white),
    0 5px var(--white), 15px 5px var(--white),
    0 10px var(--white), 5px 10px var(--white), 10px 10px var(--white), 15px 10px var(--white),
    0 15px var(--white), 10px 15px var(--white), 15px 15px var(--white);
}

.memory-knot::after {
  content: "";
  position: absolute;
  top: 5px;
  left: 5px;
  width: 10px;
  height: 5px;
  background: var(--black);
}

.site-nav {
  display: flex;
  gap: calc(var(--unit) * 3);
}

.site-nav a {
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.12em;
  color: var(--faint);
  transition: color 120ms steps(2);
}

.site-nav a:hover { color: var(--white); }

.top-bar-end {
  display: flex;
  align-items: center;
  gap: calc(var(--unit) * 2);
}

.btn-nav {
  min-height: calc(var(--unit) * 4);
  padding: 0 calc(var(--unit) * 2);
  text-decoration: none;
}

.local-badge {
  display: inline-flex;
  align-items: center;
  gap: calc(var(--unit));
  font-family: var(--mono);
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.16em;
  color: var(--faint);
}

.local-badge i {
  width: 5px;
  height: 5px;
  background: var(--white);
  animation: blink 1.6s steps(2) infinite;
}

/* ── BUTTONS ── */
.btn {
  display: inline-flex;
  align-items: center;
  min-height: calc(var(--unit) * 5);
  padding: 0 calc(var(--unit) * 2.5);
  font-family: var(--mono);
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.14em;
  border: 1px solid var(--line-strong);
  transition: background 120ms steps(2), color 120ms steps(2);
}

.btn-primary { color: var(--white); }
.btn-primary:hover { background: var(--white); color: var(--black); }

.btn-ghost {
  border-color: var(--line);
  color: var(--dim);
}

.btn-ghost:hover {
  border-color: var(--line-strong);
  color: var(--white);
}

/* ── HERO ── */
.hero {
  position: relative;
  z-index: 1;
  min-height: 100svh;
  overflow: hidden;
}

.hero-maze {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.hero-runner {
  position: absolute;
  z-index: 3;
  width: 8px;
  height: 8px;
  background: var(--white);
  pointer-events: none;
  opacity: 0;
  clip-path: polygon(0 0, 100% 0, 100% 45%, 65% 50%, 100% 55%, 100% 100%, 0 100%);
  animation: chomp 0.35s steps(2) infinite;
}

.scoreboard {
  position: absolute;
  z-index: 2;
  left: calc(var(--unit) * 5);
  bottom: calc(var(--unit) * 6);
  display: grid;
  gap: calc(var(--unit));
  padding: calc(var(--unit) * 2);
  border: 1px solid var(--line);
  font-family: var(--mono);
}

/* After demo: uncomment next line OR delete the scoreboard HTML block */
/* .demo-stats { display: none !important; } */

.score-row {
  display: grid;
  grid-template-columns: 32px 1fr;
  gap: calc(var(--unit) * 2);
  align-items: baseline;
}

.score-key {
  font-size: 10px;
  font-weight: 500;
  letter-spacing: 0.1em;
  color: var(--faint);
}

.score-val {
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-align: right;
}

.hero-copy {
  position: absolute;
  z-index: 2;
  top: clamp(240px, 38vh, 320px);
  left: clamp(400px, 40vw, 540px);
  width: min(520px, calc(100vw - clamp(400px, 40vw, 540px) - calc(var(--unit) * 6)));
}

.eyebrow {
  margin: 0 0 calc(var(--unit) * 2);
  font-family: var(--mono);
  font-size: 10px;
  font-weight: 500;
  letter-spacing: 0.22em;
  color: var(--faint);
}

.headline {
  margin: 0;
  font-size: clamp(56px, 6.8vw, 96px);
  font-weight: 700;
  line-height: 0.88;
  letter-spacing: -0.025em;
}

.headline span { display: block; }

.hero-description {
  max-width: 400px;
  margin: calc(var(--unit) * 3) 0 0;
  color: var(--dim);
  font-size: 16px;
}

.hero-description code {
  color: var(--white);
  font-size: 0.82em;
}

.hero-actions {
  display: flex;
  align-items: center;
  gap: calc(var(--unit) * 3);
  margin-top: calc(var(--unit) * 4);
}

.hero-note {
  display: inline-flex;
  align-items: center;
  gap: calc(var(--unit));
  font-family: var(--mono);
  font-size: 10px;
  font-weight: 500;
  letter-spacing: 0.12em;
  color: var(--faint);
}

.hero-note i {
  width: 4px;
  height: 4px;
  background: var(--white);
}

/* ── PANELS ── */
.panel {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(300px, 0.82fr) minmax(420px, 1.18fr);
  align-items: center;
  gap: clamp(40px, 7vw, 96px);
  min-height: min(100svh, 900px);
  padding: calc(var(--unit) * 14) calc(var(--unit) * 5) calc(var(--unit) * 10);
}

.panel::before {
  content: "";
  position: absolute;
  top: 0;
  left: calc(var(--unit) * 5);
  right: calc(var(--unit) * 5);
  height: 1px;
  background: var(--line);
}

.panel-copy { max-width: 480px; }

.section-index {
  margin: 0 0 calc(var(--unit) * 2);
  font-family: var(--mono);
  font-size: 10px;
  font-weight: 500;
  letter-spacing: 0.2em;
  color: var(--faint);
}

.panel-copy h2 {
  margin: 0;
  font-size: clamp(36px, 4.6vw, 64px);
  font-weight: 700;
  line-height: 0.92;
  letter-spacing: -0.02em;
}

.panel-copy > p {
  margin: calc(var(--unit) * 3) 0 0;
  color: var(--dim);
  max-width: 400px;
}

.fact-list {
  margin: calc(var(--unit) * 3) 0 0;
  padding: 0;
  list-style: none;
  font-family: var(--mono);
  font-size: 11px;
  color: var(--dim);
}

.fact-list li {
  position: relative;
  padding-left: calc(var(--unit) * 2);
  margin-bottom: calc(var(--unit));
}

.fact-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 7px;
  width: 4px;
  height: 4px;
  background: var(--faint);
}

.fact-list.compact {
  margin-top: calc(var(--unit) * 2);
  font-size: 10px;
}

.type-grid {
  display: flex;
  flex-wrap: wrap;
  gap: calc(var(--unit));
  margin-top: calc(var(--unit) * 3);
}

.type-grid span {
  font-family: var(--mono);
  font-size: 8px;
  font-weight: 500;
  letter-spacing: 0.06em;
  color: var(--dim);
  padding: calc(var(--unit)) calc(var(--unit) * 1.5);
  border: 1px solid var(--line);
}

.inline-note {
  margin: calc(var(--unit) * 2) 0 0;
  font-family: var(--mono);
  font-size: 9px;
  color: var(--faint);
  letter-spacing: 0.04em;
  line-height: 1.5;
}

.score-hint {
  grid-column: 1 / -1;
  font-size: 7px;
  letter-spacing: 0.08em;
  color: var(--faint);
  margin-top: -2px;
  padding-left: 0;
}

.inject-tools {
  display: block;
  margin-top: calc(var(--unit));
  font-size: 9px !important;
  color: var(--dim) !important;
}

.cmd-block {
  margin: calc(var(--unit) * 3) 0 0;
  padding: calc(var(--unit) * 2);
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.02);
  overflow-x: auto;
}

.cmd-block code {
  display: block;
  font-size: 11px;
  line-height: 1.7;
  color: var(--dim);
  white-space: pre;
}

.format-list {
  margin: calc(var(--unit) * 3) 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: calc(var(--unit));
}

.format-list li {
  display: grid;
  grid-template-columns: 88px 1fr;
  gap: calc(var(--unit) * 2);
  align-items: baseline;
  font-family: var(--mono);
  font-size: 11px;
}

.format-list span {
  color: var(--faint);
  letter-spacing: 0.08em;
}

.format-list code {
  color: var(--white);
  font-size: 10px;
  word-break: break-all;
}

.benchmark {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: calc(var(--unit)) calc(var(--unit) * 2);
  margin-top: calc(var(--unit) * 3);
  padding: calc(var(--unit) * 2);
  border: 1px solid var(--line);
  font-family: var(--mono);
}

.bench-label {
  width: 100%;
  font-size: 9px;
  letter-spacing: 0.16em;
  color: var(--faint);
}

.bench-stat {
  font-size: 11px;
  color: var(--white);
}

.bench-stat.dim { color: var(--dim); }

.bench-stat strong { font-size: 16px; font-weight: 600; }

.bench-vs { font-size: 10px; color: var(--faint); }

.bench-src {
  width: 100%;
  font-size: 9px;
  color: var(--faint);
  letter-spacing: 0.1em;
}

/* ── FRAGMENT ── */
.fragment-stage {
  position: relative;
  height: min(60vh, 480px);
  min-height: 400px;
}

.fragment-canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.platform {
  position: absolute;
  z-index: 2;
  display: grid;
  place-items: center;
  opacity: 0.75;
  animation: drift 5s steps(8) infinite;
}

.platform::after {
  content: attr(data-label);
  position: absolute;
  bottom: -18px;
  font-family: var(--mono);
  font-size: 9px;
  font-weight: 500;
  letter-spacing: 0.14em;
  color: var(--faint);
  white-space: nowrap;
}

.platform img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.p-chatgpt { top: 8%; left: 6%; width: 40px; height: 40px; }
.p-claude { top: 52%; left: 4%; width: 44px; height: 44px; animation-delay: -1s; }
.p-grok { top: 14%; left: 40%; width: 38px; height: 38px; animation-delay: -2s; }
.p-claude-code { top: 56%; left: 38%; width: 46px; height: 46px; animation-delay: -3s; }
.p-codex { top: 26%; right: 6%; width: 42px; height: 42px; animation-delay: -4s; }
.p-cursor { right: 8%; bottom: 8%; width: 38px; height: 38px; animation-delay: -5s; }

/* ── ENGINE ── */
.engine-stage {
  display: grid;
  place-items: center;
  height: min(60vh, 480px);
  min-height: 400px;
}

.engine-frame {
  position: relative;
  width: min(360px, 80%);
  padding: calc(var(--unit) * 6) calc(var(--unit) * 4);
  border: 1px solid var(--line);
}

.engine-corner {
  position: absolute;
  width: calc(var(--unit) * 2);
  height: calc(var(--unit) * 2);
  border: 1px solid var(--line-strong);
}

.engine-corner.tl { top: -1px; left: -1px; border-right: 0; border-bottom: 0; }
.engine-corner.tr { top: -1px; right: -1px; border-left: 0; border-bottom: 0; }
.engine-corner.bl { bottom: -1px; left: -1px; border-right: 0; border-top: 0; }
.engine-corner.br { bottom: -1px; right: -1px; border-left: 0; border-top: 0; }

.engine-core {
  display: grid;
  justify-items: center;
  gap: calc(var(--unit) * 2);
  text-align: center;
}

.engine-tag {
  font-family: var(--mono);
  font-size: 9px;
  font-weight: 500;
  letter-spacing: 0.2em;
  color: var(--faint);
}

.engine-logo {
  width: min(240px, 70%);
  filter: invert(1);
}

.engine-ops {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: calc(var(--unit));
}

.engine-ops span {
  font-family: var(--mono);
  font-size: 9px;
  font-weight: 600;
  letter-spacing: 0.14em;
  padding: calc(var(--unit)) calc(var(--unit) * 1.5);
  border: 1px solid var(--line);
  color: var(--dim);
}

/* ── IMPORT ── */
.import-stage {
  position: relative;
  height: min(60vh, 480px);
  min-height: 400px;
}

.drop-zone {
  position: absolute;
  top: 6%;
  left: 50%;
  transform: translateX(-50%);
  display: grid;
  justify-items: center;
  gap: calc(var(--unit));
  width: min(280px, 85%);
  padding: calc(var(--unit) * 4) calc(var(--unit) * 3);
  border: 1px dashed var(--line-strong);
  color: inherit;
  text-decoration: none;
}

a.drop-zone-link:hover {
  border-color: var(--white);
  background: rgba(255, 255, 255, 0.04);
}

.panel-cta {
  display: flex;
  flex-wrap: wrap;
  gap: calc(var(--unit) * 2);
  margin-top: calc(var(--unit) * 4);
}

.panel-cta .btn {
  text-decoration: none;
}

.drop-pellet {
  width: 8px;
  height: 8px;
  background: var(--white);
  animation: pulse-pellet 1.2s steps(4) infinite;
}

.drop-label {
  font-family: var(--mono);
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.18em;
}

.drop-sub {
  font-family: var(--mono);
  font-size: 9px;
  color: var(--faint);
  letter-spacing: 0.06em;
}

.pipeline {
  position: absolute;
  bottom: 10%;
  left: 0;
  right: 0;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: calc(var(--unit) * 2);
}

.pipe-label {
  display: block;
  margin-bottom: calc(var(--unit));
  font-family: var(--mono);
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.14em;
}

.pipe-track {
  position: relative;
  height: 4px;
  background: var(--line);
  overflow: hidden;
}

.pipe-runner {
  position: absolute;
  top: 0;
  left: -8px;
  width: 8px;
  height: 4px;
  background: var(--white);
  animation: pipe-eat 2.4s steps(12) infinite;
}

.pipe[data-stage="extract"] .pipe-runner { animation-delay: -0.8s; }
.pipe[data-stage="relate"] .pipe-runner { animation-delay: -1.6s; }

.import-canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
}

/* ── STRUCTURE ── */
.structure-stage {
  display: grid;
  gap: calc(var(--unit) * 2);
}

.thread-block {
  padding: calc(var(--unit) * 2);
  border: 1px solid var(--line);
}

.block-label {
  display: block;
  margin-bottom: calc(var(--unit));
  font-family: var(--mono);
  font-size: 9px;
  font-weight: 500;
  letter-spacing: 0.16em;
  color: var(--faint);
}

.thread-block p {
  margin: 0;
  font-size: 13px;
  color: var(--dim);
  font-style: italic;
}

.pellet-bridge {
  display: flex;
  justify-content: center;
  gap: calc(var(--unit) * 1.5);
  padding: calc(var(--unit)) 0;
}

.pellet-bridge span {
  width: 4px;
  height: 4px;
  background: var(--white);
  opacity: 0.25;
  animation: bridge-eat 1s steps(5) infinite;
}

.pellet-bridge span:nth-child(1) { animation-delay: 0s; }
.pellet-bridge span:nth-child(2) { animation-delay: 0.1s; }
.pellet-bridge span:nth-child(3) { animation-delay: 0.2s; }
.pellet-bridge span:nth-child(4) { animation-delay: 0.3s; }
.pellet-bridge span:nth-child(5) { animation-delay: 0.4s; }

.memory-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: calc(var(--unit));
}

.mem-chip {
  padding: calc(var(--unit) * 2);
  border: 1px solid var(--line);
}

.mem-chip span {
  display: block;
  margin-bottom: calc(var(--unit));
  font-family: var(--mono);
  font-size: 9px;
  font-weight: 600;
  letter-spacing: 0.14em;
  color: var(--faint);
}

.mem-chip p {
  margin: 0;
  font-size: 12px;
  line-height: 1.35;
}

.relation-row {
  display: flex;
  gap: calc(var(--unit) * 2);
  padding-top: calc(var(--unit));
}

.rel {
  font-family: var(--mono);
  font-size: 9px;
  font-weight: 500;
  letter-spacing: 0.12em;
  color: var(--faint);
  padding: 4px 8px;
  border: 1px solid var(--line);
}

.rel[data-kind="updates"] {
  color: var(--white);
  border-color: var(--line-strong);
}

/* ── PROOF ── */
.proof-stage {
  display: grid;
  gap: calc(var(--unit) * 2);
}

.mem-block {
  padding: calc(var(--unit) * 3);
  border: 1px solid var(--line);
}

.mem-block.old {
  opacity: 0.5;
}

.mem-block.old p {
  text-decoration: line-through;
  text-decoration-color: rgba(255,255,255,0.3);
}

.mem-block header {
  display: flex;
  align-items: center;
  gap: calc(var(--unit) * 1.5);
  margin-bottom: calc(var(--unit) * 2);
}

.mem-block header img {
  width: 18px;
  height: 18px;
}

.mem-block header span {
  flex: 1;
  font-family: var(--mono);
  font-size: 9px;
  font-weight: 500;
  letter-spacing: 0.1em;
  color: var(--faint);
}

.tag {
  font-style: normal;
  font-family: var(--mono);
  font-size: 9px;
  font-weight: 600;
  letter-spacing: 0.12em;
  padding: 3px 6px;
  border: 1px solid var(--line);
}

.tag-dead { color: var(--faint); }
.tag-live { color: var(--white); border-color: var(--line-strong); }

.mem-block p {
  margin: 0;
  font-size: 15px;
  line-height: 1.4;
}

.conflict-link {
  display: flex;
  align-items: center;
  gap: calc(var(--unit) * 2);
}

.link-pellets {
  flex: 1;
  height: 1px;
  background: repeating-linear-gradient(90deg, var(--faint) 0 4px, transparent 4px 12px);
}

.link-badge {
  font-family: var(--mono);
  font-size: 9px;
  font-weight: 600;
  letter-spacing: 0.14em;
  padding: calc(var(--unit)) calc(var(--unit) * 1.5);
  border: 1px solid var(--white);
  animation: blink 2.4s steps(2) infinite;
}

.chain-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: calc(var(--unit) * 2);
  padding: calc(var(--unit) * 2) calc(var(--unit) * 3);
  border: 1px solid var(--line-strong);
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.1em;
}

.chain { color: var(--dim); }
.chain b { color: var(--faint); font-weight: 400; margin: 0 4px; }

/* ── INJECT ── */
.inject-stage {
  position: relative;
  display: grid;
  gap: calc(var(--unit) * 2);
}

.inject-row {
  display: grid;
  grid-template-columns: 32px 1fr;
  gap: calc(var(--unit) * 2);
  padding: calc(var(--unit) * 3);
  border: 1px solid var(--line);
  transition: border-color 120ms steps(2);
  color: inherit;
  text-decoration: none;
}

.inject-row:hover { border-color: var(--line-strong); }

a.inject-row-link {
  cursor: pointer;
}

.inject-num {
  font-family: var(--mono);
  font-size: 10px;
  font-weight: 600;
  color: var(--faint);
}

.inject-body h3 {
  margin: 0 0 calc(var(--unit));
  font-family: var(--mono);
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.16em;
}

.inject-body code {
  display: block;
  margin-bottom: calc(var(--unit));
  font-size: 11px;
  color: var(--white);
  word-break: break-word;
}

.inject-body span {
  font-family: var(--mono);
  font-size: 9px;
  color: var(--faint);
  letter-spacing: 0.06em;
}

.inject-canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  opacity: 0.35;
}

/* ── CTA ── */
.cta {
  position: relative;
  z-index: 1;
  text-align: center;
  padding: calc(var(--unit) * 12) calc(var(--unit) * 5);
  border-top: 1px solid var(--line);
}

.cta h2 {
  margin: 0;
  font-size: clamp(32px, 4vw, 52px);
  font-weight: 700;
  line-height: 0.95;
  letter-spacing: -0.02em;
}

.cta > p {
  max-width: 440px;
  margin: calc(var(--unit) * 3) auto 0;
  color: var(--dim);
}

.cta-actions {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: calc(var(--unit) * 2);
  margin-top: calc(var(--unit) * 5);
}

.cta-actions .btn {
  text-decoration: none;
}

.cta-secondary {
  margin-top: calc(var(--unit) * 3);
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.1em;
  color: var(--faint);
}

.cta-secondary a {
  color: var(--dim);
  text-decoration: none;
}

.cta-secondary a:hover {
  color: var(--white);
}

/* ── FOOTER ── */
.site-footer {
  position: relative;
  z-index: 1;
  padding: calc(var(--unit) * 8) calc(var(--unit) * 5) calc(var(--unit) * 4);
  border-top: 1px solid var(--line);
}

.footer-main {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: calc(var(--unit) * 6);
  margin-bottom: calc(var(--unit) * 5);
}

.footer-brand .brand {
  text-decoration: none;
  color: inherit;
}

.footer-brand p {
  margin: calc(var(--unit) * 2) 0 0;
  max-width: 260px;
  font-size: 13px;
  color: var(--dim);
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: calc(var(--unit) * 1.5) calc(var(--unit) * 3);
  max-width: 360px;
}

.footer-links a {
  font-family: var(--mono);
  font-size: 10px;
  font-weight: 500;
  letter-spacing: 0.12em;
  color: var(--faint);
  text-decoration: none;
}

.footer-links a:hover {
  color: var(--white);
}

.footer-foundation {
  display: grid;
  gap: calc(var(--unit));
  text-align: right;
  font-family: var(--mono);
}

.footer-foundation span {
  font-size: 9px;
  letter-spacing: 0.16em;
  color: var(--faint);
}

.footer-foundation strong {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.14em;
}

.footer-foundation em {
  font-size: 9px;
  font-style: normal;
  letter-spacing: 0.1em;
  color: var(--dim);
}

.footer-meta {
  display: flex;
  justify-content: space-between;
  padding-top: calc(var(--unit) * 3);
  border-top: 1px solid var(--line);
  font-family: var(--mono);
  font-size: 9px;
  font-weight: 500;
  letter-spacing: 0.14em;
  color: var(--faint);
}

/* ── REVEAL ── */
.reveal {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.5s steps(6), transform 0.5s steps(6);
}

.reveal.is-in { opacity: 1; transform: none; }

/* ── ANIMATIONS (arcade steps) ── */
@keyframes blink {
  0%, 49% { opacity: 1; }
  50%, 100% { opacity: 0.3; }
}

@keyframes chomp {
  0%, 49% { clip-path: polygon(0 0, 100% 0, 100% 45%, 65% 50%, 100% 55%, 100% 100%, 0 100%); }
  50%, 100% { clip-path: polygon(0 0, 100% 0, 100% 35%, 55% 50%, 100% 65%, 100% 100%, 0 100%); }
}

@keyframes drift {
  0%, 100% { transform: translate(0, 0); }
  50% { transform: translate(0, -8px); }
}

@keyframes pulse-pellet {
  0%, 75%, 100% { opacity: 1; transform: scale(1); }
  80% { opacity: 0.4; transform: scale(0.75); }
}

@keyframes pipe-eat {
  0% { left: -8px; }
  100% { left: 100%; }
}

@keyframes bridge-eat {
  0%, 40% { opacity: 0.2; }
  50% { opacity: 1; }
  60%, 100% { opacity: 0.2; }
}

/* ── RESPONSIVE: 1280 & 390 targets ── */
@media (max-width: 1024px) {
  .hero-copy {
    left: 36vw;
    width: 58vw;
  }

  .panel {
    grid-template-columns: 1fr;
    min-height: auto;
    padding-top: calc(var(--unit) * 12);
  }

  .fragment-stage,
  .engine-stage,
  .import-stage {
    height: 420px;
    min-height: 420px;
    margin-top: calc(var(--unit) * 4);
  }

  .memory-row { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
  html {
    -webkit-text-size-adjust: 100%;
  }

  html, body {
    overflow-x: hidden;
    max-width: 100vw;
  }

  .site-nav { display: none; }
  .local-badge { display: none; }

  .top-bar {
    height: auto;
    min-height: 52px;
    padding: calc(10px + env(safe-area-inset-top, 0px)) calc(var(--unit) * 2.5) 10px;
    gap: 10px;
  }

  .brand {
    font-size: 10px;
    letter-spacing: 0.16em;
  }

  .btn-nav {
    min-height: 40px;
    padding: 0 12px;
    font-size: 9px;
    white-space: nowrap;
    flex-shrink: 0;
  }

  .hero {
    min-height: auto;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    padding-bottom: 4px;
  }

  .hero-maze {
    position: absolute;
    inset: 0 0 auto 0;
    height: 28vh;
    opacity: 0.25;
    pointer-events: none;
  }

  .hero-runner {
    display: none;
  }

  .hero-copy {
    position: relative;
    top: auto !important;
    left: auto !important;
    width: auto !important;
    max-width: none;
    margin: 0;
    padding: calc(56px + env(safe-area-inset-top, 0px)) 16px 12px;
    z-index: 2;
  }

  .headline {
    font-size: clamp(36px, 10vw, 48px);
    line-height: 0.95;
  }

  .hero-description {
    font-size: 13px;
    max-width: none;
    margin-top: 10px;
  }

  .hero-actions {
    flex-direction: column;
    align-items: stretch;
    width: 100%;
    gap: 8px;
    margin-top: 14px;
  }

  .hero-actions .btn {
    width: 100%;
    justify-content: center;
    min-height: 44px;
  }

  .hero-note {
    font-size: 9px;
    line-height: 1.35;
  }

  /* Compact demo stats on phone — remove HTML after demo */
  .scoreboard.demo-stats {
    position: relative;
    left: auto;
    bottom: auto;
    margin: 4px 16px 12px;
    width: auto;
    max-width: none;
    padding: 10px 12px;
    gap: 6px;
    display: grid;
    grid-template-columns: 1fr 1fr;
  }

  .scoreboard.demo-stats .score-row {
    grid-template-columns: auto 1fr;
    gap: 8px;
  }

  .panel {
    padding: 40px 16px;
    display: flex;
    flex-direction: column;
    gap: 20px;
  }

  .panel-copy {
    width: 100%;
    max-width: none;
  }

  .panel-copy h2 {
    font-size: clamp(26px, 7vw, 36px);
  }

  .panel-cta {
    flex-direction: column;
    align-items: stretch;
    width: 100%;
  }

  .panel-cta .btn {
    width: 100%;
    justify-content: center;
    min-height: 48px;
  }

  .import-stage,
  .structure-stage,
  .proof-stage,
  .engine-stage,
  .fragment-stage {
    width: 100%;
    max-width: 100%;
    height: auto;
    min-height: 280px;
  }

  .drop-zone {
    position: relative;
    top: auto;
    left: auto;
    transform: none;
    width: 100%;
    margin: 0 auto;
    padding: calc(var(--unit) * 4) calc(var(--unit) * 2);
  }

  .format-list li {
    flex-wrap: wrap;
    gap: 6px;
  }

  .mem-block {
    width: 100%;
  }

  .proof-stage {
    display: flex;
    flex-direction: column;
    gap: 12px;
  }

  .inject-row {
    grid-template-columns: 28px 1fr;
    padding: calc(var(--unit) * 2.5);
  }

  .cta {
    padding: calc(var(--unit) * 8) calc(var(--unit) * 3)
      calc(var(--unit) * 8 + env(safe-area-inset-bottom, 0px));
  }

  .cta h2 {
    font-size: clamp(28px, 8vw, 40px);
  }

  .cta-actions {
    flex-direction: column;
    align-items: stretch;
  }

  .cta-actions .btn {
    width: 100%;
    justify-content: center;
    min-height: 48px;
  }

  .footer-main {
    flex-direction: column;
    gap: calc(var(--unit) * 4);
  }

  .footer-links {
    max-width: none;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4px 12px;
  }

  .footer-links a {
    min-height: 40px;
    display: inline-flex;
    align-items: center;
  }

  .footer-foundation {
    text-align: left;
  }

  .footer-meta {
    flex-direction: column;
    gap: calc(var(--unit));
    padding-bottom: env(safe-area-inset-bottom, 0px);
  }

  .cmd-block {
    font-size: 10px;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
  }
}

/* Desktop / laptop — full layout (not mobile-only) */
@media (min-width: 769px) {
  .hero {
    min-height: 100svh;
    display: block;
  }

  .hero-maze {
    position: absolute;
    inset: 0;
    height: 100%;
    opacity: 1;
  }

  .hero-runner {
    display: block;
  }

  .hero-copy {
    position: absolute;
    top: clamp(240px, 38vh, 320px);
    left: clamp(400px, 40vw, 540px);
    width: min(520px, calc(100vw - clamp(400px, 40vw, 540px) - calc(var(--unit) * 6)));
    padding: 0;
  }

  .scoreboard.demo-stats {
    position: absolute;
    left: calc(var(--unit) * 5);
    bottom: calc(var(--unit) * 6);
    display: grid;
    grid-template-columns: 1fr;
    width: auto;
    margin: 0;
  }

  .site-nav {
    display: flex;
  }

  .local-badge {
    display: inline-flex;
  }

  .hero-actions {
    flex-direction: row;
    flex-wrap: wrap;
    align-items: center;
    width: auto;
  }

  .hero-actions .btn {
    width: auto;
    min-height: 44px;
  }

  .btn-nav:hover {
    background: var(--white);
    color: var(--black);
  }

  .panel-cta {
    flex-direction: row;
  }

  .panel-cta .btn {
    width: auto;
  }

  .cta-actions {
    flex-direction: row;
  }

  .cta-actions .btn {
    width: auto;
  }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation: none !important;
    transition: none !important;
  }
  .reveal { opacity: 1; transform: none; }
}