:root {
  --ink: #090a08;
  --paper: #f1efe8;
  --muted: #a3a59d;
  --line: rgba(241, 239, 232, 0.15);
  --acid: #c8ff2f;
  --violet: #8d68ff;
  --orange: #ff7548;
  --blue: #527dff;
  --max: 1240px;
  color-scheme: dark;
  font-family: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-synthesis: none;
  background: var(--ink);
  color: var(--paper);
}

* {
  box-sizing: border-box;
}

html {
  width: 100%;
  max-width: 100%;
  overflow-x: hidden;
  overflow-x: clip;
  overscroll-behavior-x: none;
  scroll-behavior: auto;
  scroll-padding-top: 7rem;
  touch-action: pan-y;
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
}

body {
  position: relative;
  width: 100%;
  max-width: 100%;
  min-width: 0;
  margin: 0;
  overflow-x: hidden;
  overflow-x: clip;
  overscroll-behavior-x: none;
  touch-action: pan-y;
  background:
    linear-gradient(rgba(255,255,255,0.021) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.021) 1px, transparent 1px),
    var(--ink);
  background-size: 48px 48px;
  color: var(--paper);
}

body::before {
  position: fixed;
  z-index: 20;
  inset: 0;
  pointer-events: none;
  content: "";
  opacity: 0.18;
  background-image:
    radial-gradient(circle at 15% 25%, rgba(255,255,255,0.16) 0 0.5px, transparent 0.8px),
    radial-gradient(circle at 75% 65%, rgba(255,255,255,0.12) 0 0.45px, transparent 0.75px);
  background-size: 7px 7px, 11px 11px;
}

a {
  color: inherit;
}

button,
a {
  -webkit-tap-highlight-color: transparent;
  touch-action: manipulation;
}

button {
  font: inherit;
}

.skip-link {
  position: fixed;
  z-index: 100;
  top: 1rem;
  left: 1rem;
  padding: 0.7rem 1rem;
  transform: translateY(-200%);
  background: var(--acid);
  color: var(--ink);
  font-weight: 800;
}

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

.ambient {
  position: fixed;
  z-index: -1;
  width: 44rem;
  height: 44rem;
  border-radius: 50%;
  filter: blur(120px);
  opacity: 0.13;
  pointer-events: none;
}

.ambient-one {
  top: -20rem;
  right: -13rem;
  background: var(--violet);
}

.ambient-two {
  bottom: 5rem;
  left: -24rem;
  background: var(--acid);
}

.site-header {
  position: fixed;
  z-index: 50;
  inset: 0 0 auto;
  width: 100%;
  margin: 0;
  border-bottom: 1px solid var(--line);
  background: rgba(9, 10, 8, 0.88);
  -webkit-backdrop-filter: blur(22px) saturate(145%);
  backdrop-filter: blur(22px) saturate(145%);
}

main {
  width: 100%;
  max-width: 100%;
  overflow-x: hidden;
  overflow-x: clip;
  padding-top: 88px;
}

.site-header-inner {
  width: min(calc(100% - 48px), var(--max));
  height: 88px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.wordmark {
  display: inline-flex;
  align-items: center;
  gap: 0;
  color: var(--paper);
  font-size: 1rem;
  font-weight: 900;
  letter-spacing: -0.05em;
  text-decoration: none;
}

.wordmark b {
  margin: 0 0.04em;
  color: var(--acid);
  font-size: 1.1em;
  font-weight: 500;
  text-shadow: 0 0 18px rgba(200, 255, 47, 0.48);
}

nav {
  display: flex;
  align-items: center;
  gap: clamp(1.2rem, 3vw, 2.6rem);
}

nav a {
  color: #cacbc5;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-decoration: none;
  transition: color 180ms ease;
}

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

.nav-github {
  padding: 0.66rem 0.9rem;
  border: 1px solid var(--line);
  border-radius: 999px;
}

.nav-download {
  padding: 0.7rem 0.95rem;
  border-radius: 999px;
  background: var(--acid);
  color: var(--ink);
  box-shadow: 0 0 24px rgba(200, 255, 47, 0.12);
}

nav a.nav-download:hover,
nav a.nav-download:focus-visible {
  background: #d7ff68;
  color: var(--ink);
}

.hero {
  position: relative;
  width: min(calc(100% - 48px), var(--max));
  min-height: 760px;
  margin: 0 auto;
  display: grid;
  align-items: center;
  grid-template-columns: minmax(0, 1fr) 32%;
  padding: 7.5rem 0 8.5rem;
}

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

.eyebrow,
.section-number {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  color: var(--acid);
  font-size: 0.7rem;
  font-weight: 850;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.eyebrow::before {
  width: 1.5rem;
  height: 1px;
  content: "";
  background: currentColor;
}

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

h1 {
  max-width: 980px;
  margin: 1.5rem 0 2rem;
  font-size: clamp(4.2rem, 8.5vw, 8.4rem);
  font-weight: 900;
  font-kerning: normal;
  line-height: 0.92;
  letter-spacing: -0.03em;
  text-rendering: optimizeLegibility;
}

h1 span {
  display: inline-block;
  color: var(--acid);
  -webkit-text-stroke: 0;
}

.hero-lede {
  max-width: 660px;
  color: #b8bab3;
  font-size: clamp(1.08rem, 2vw, 1.35rem);
  line-height: 1.65;
}

.hero-actions {
  margin-top: 2.2rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
}

.button {
  min-height: 52px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 1.1rem;
  padding: 0.9rem 1.2rem;
  border: 1px solid transparent;
  border-radius: 4px;
  font-size: 0.84rem;
  font-weight: 800;
  text-decoration: none;
  transition: transform 180ms ease, background 180ms ease, color 180ms ease, border-color 180ms ease;
}

.button:hover,
.button:focus-visible {
  transform: translateY(-2px);
}

.button-primary {
  background: var(--acid);
  color: var(--ink);
}

.button-primary:hover,
.button-primary:focus-visible {
  background: #d7ff68;
}

.button-secondary {
  border-color: var(--line);
  color: var(--paper);
}

.button-download {
  border-color: rgba(141, 104, 255, 0.78);
  background: var(--violet);
  color: #fff;
  box-shadow: 0 14px 36px rgba(82, 46, 180, 0.22);
}

.button-download:hover,
.button-download:focus-visible {
  border-color: #a98fff;
  background: #9d7cff;
}

.button-secondary:hover,
.button-secondary:focus-visible {
  border-color: rgba(241, 239, 232, 0.45);
  background: rgba(255,255,255,0.05);
}

.hero-meta {
  margin-top: 3.3rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.hero-meta span {
  padding: 0.48rem 0.7rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: #8f918a;
  font-size: 0.66rem;
  font-weight: 750;
  letter-spacing: 0.07em;
  text-transform: uppercase;
}

.hero-orbit {
  position: relative;
  aspect-ratio: 1;
  width: min(34vw, 420px);
  justify-self: end;
}

.orbit-ring,
.hero-orbit::before,
.hero-orbit::after {
  position: absolute;
  inset: 9%;
  border: 1px solid rgba(200, 255, 47, 0.32);
  border-radius: 50%;
  content: "";
}

.hero-orbit::before {
  inset: 25%;
  border-color: rgba(141, 104, 255, 0.36);
}

.hero-orbit::after {
  inset: 38%;
  border: 0;
  background: var(--acid);
  box-shadow: 0 0 80px rgba(200, 255, 47, 0.28);
  animation: orbit-pulse 3.6s ease-in-out infinite;
}

.orbit-ring {
  animation: orbit-spin 14s linear infinite;
}

.orbit-ring::before,
.orbit-ring::after {
  position: absolute;
  width: 1rem;
  height: 1rem;
  border-radius: 50%;
  content: "";
  background: var(--paper);
}

.orbit-ring::before {
  top: 7%;
  left: 19%;
}

.orbit-ring::after {
  right: -0.45rem;
  bottom: 42%;
  background: var(--violet);
}

.orbit-label {
  position: absolute;
  z-index: 2;
  padding: 0.45rem 0.65rem;
  border: 1px solid rgba(255,255,255,0.19);
  background: rgba(9, 10, 8, 0.8);
  color: var(--paper);
  font-size: 0.62rem;
  font-weight: 900;
  letter-spacing: 0.14em;
}

.orbit-label-one { top: 12%; left: 0; transform: rotate(-8deg); }
.orbit-label-two { top: 48%; right: -3%; transform: rotate(7deg); }
.orbit-label-three { bottom: 12%; left: 9%; transform: rotate(4deg); }

@keyframes orbit-spin {
  to { transform: rotate(360deg); }
}

@keyframes orbit-pulse {
  0%, 100% { transform: scale(0.9); }
  50% { transform: scale(1.08); }
}

.kinetic-strip {
  overflow: hidden;
  border-block: 1px solid var(--line);
  background: var(--acid);
  color: var(--ink);
  transform: rotate(-1deg) scale(1.015);
}

.kinetic-track {
  width: max-content;
  display: flex;
  padding: 0.9rem 0;
  font-size: clamp(1rem, 2vw, 1.5rem);
  font-weight: 950;
  letter-spacing: -0.02em;
  animation: ticker 22s linear infinite;
  will-change: transform;
}

.kinetic-track > span {
  flex: 0 0 auto;
  white-space: nowrap;
}

.kinetic-track.is-managed {
  animation: none;
}

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

.demo-section,
.how-section,
.pattern-section,
.history-section,
.open-section {
  width: min(calc(100% - 48px), var(--max));
  margin: 0 auto;
  padding: 9rem 0;
}

.section-heading {
  max-width: 760px;
  margin-bottom: 4rem;
}

.section-heading h2,
.history-intro h2,
.open-card h2 {
  margin: 1.1rem 0 1.2rem;
  font-size: clamp(3rem, 6vw, 5.8rem);
  line-height: 0.93;
  letter-spacing: -0.065em;
}

.section-heading p,
.history-intro p {
  max-width: 650px;
  color: var(--muted);
  font-size: 1.12rem;
  line-height: 1.7;
}

.section-heading code {
  color: #d8dacd;
  font-family: ui-monospace, "SFMono-Regular", Menlo, Monaco, Consolas, monospace;
  font-size: 0.88em;
}

.demo-shell {
  position: relative;
  overflow: hidden;
  border: 1px solid rgba(241, 239, 232, 0.19);
  border-radius: 16px;
  background: #11120f;
  box-shadow: 0 50px 120px rgba(0,0,0,0.48);
}

.demo-shell::after {
  position: absolute;
  top: 0;
  left: 50%;
  width: 60%;
  height: 1px;
  transform: translateX(-50%);
  content: "";
  background: linear-gradient(90deg, transparent, var(--acid), transparent);
}

.demo-topbar,
.demo-caption {
  min-height: 54px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 1.2rem;
  border-bottom: 1px solid var(--line);
  color: #90928b;
  font-size: 0.62rem;
  font-weight: 850;
  letter-spacing: 0.12em;
}

.window-dots {
  display: flex;
  gap: 0.42rem;
}

.window-dots i {
  width: 0.62rem;
  height: 0.62rem;
  border-radius: 50%;
  background: #ff5f57;
}

.window-dots i:nth-child(2) { background: #febc2e; }
.window-dots i:nth-child(3) { background: #28c840; }

.live-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}

.live-badge i {
  width: 0.5rem;
  height: 0.5rem;
  border-radius: 50%;
  background: var(--acid);
  box-shadow: 0 0 14px rgba(200, 255, 47, 0.6);
}

.demo-stage {
  position: relative;
  min-height: clamp(360px, 52vw, 660px);
  display: grid;
  place-items: center;
  background:
    radial-gradient(circle at 50% 25%, rgba(141, 104, 255, 0.17), transparent 32%),
    radial-gradient(circle at 75% 80%, rgba(200, 255, 47, 0.08), transparent 28%),
    #0b0c0a;
}

#tap-demo {
  width: 100%;
  height: 100%;
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.screen-tap-zone {
  position: absolute;
  z-index: 3;
  display: block;
  padding: 0;
  border: 0;
  border-radius: 7px;
  background: transparent;
  color: transparent;
  cursor: pointer;
  touch-action: manipulation;
  -webkit-user-select: none;
  user-select: none;
}

.screen-tap-zone:focus-visible {
  background: rgba(200, 255, 47, 0.045);
  outline: 1px solid rgba(200, 255, 47, 0.42);
  outline-offset: -1px;
}

@media (hover: hover) and (pointer: fine) {
  .screen-tap-zone:hover {
    background: rgba(200, 255, 47, 0.045);
    outline: 1px solid rgba(200, 255, 47, 0.42);
    outline-offset: -1px;
  }
}

.screen-tap-top {
  z-index: 4;
}

.demo-fallback {
  display: none;
}

.demo-caption {
  position: relative;
  min-height: 64px;
  border-top: 1px solid var(--line);
  border-bottom: 0;
  color: var(--paper);
  font-size: 0.78rem;
  letter-spacing: 0;
  text-transform: none;
}

.demo-status {
  min-width: 0;
  display: flex;
  align-items: center;
  gap: 1rem;
}

.space-pagination {
  display: inline-flex;
  align-items: center;
  gap: 0.32rem;
}

.space-pagination i {
  width: 0.34rem;
  height: 0.34rem;
  display: block;
  border-radius: 50%;
  background: #3c3e38;
  transition: width 180ms ease, border-radius 180ms ease, background 180ms ease;
}

.space-pagination i.is-current {
  width: 0.9rem;
  border-radius: 999px;
  background: var(--acid);
}

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

.demo-control {
  min-height: 88px;
  padding: 1rem 1.25rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  border: 0;
  background: #141510;
  color: var(--paper);
  cursor: pointer;
  text-align: left;
  touch-action: manipulation;
  transform-origin: center;
  transition: background 180ms ease, color 180ms ease, box-shadow 180ms ease;
}

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

.demo-control span {
  color: #898b84;
  font-size: 0.66rem;
  font-weight: 850;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.demo-control strong {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  font-size: clamp(0.9rem, 1.8vw, 1.15rem);
}

.demo-control strong i {
  color: var(--acid);
  font-size: 1.4em;
  font-style: normal;
  font-weight: 400;
}

.demo-control:focus-visible {
  background: #ddff83;
  color: var(--ink);
}

.demo-control:active {
  background: var(--acid);
  color: var(--ink);
}

.demo-control.is-triggered,
.demo-control.is-clicked {
  background: var(--acid);
  color: var(--ink);
}

.demo-control.is-clicked {
  animation: demo-control-click-pulse 540ms cubic-bezier(0.22, 1, 0.36, 1);
}

.demo-control:focus-visible span,
.demo-control:active span,
.demo-control.is-triggered span,
.demo-control.is-clicked span,
.demo-control:focus-visible strong i,
.demo-control:active strong i,
.demo-control.is-triggered strong i,
.demo-control.is-clicked strong i {
  color: var(--ink);
}

@media (hover: hover) and (pointer: fine) {
  .demo-control:hover {
    background: #ddff83;
    color: var(--ink);
  }

  .demo-control:hover span,
  .demo-control:hover strong i {
    color: var(--ink);
  }
}

@keyframes demo-control-click-pulse {
  0% {
    transform: scale(1);
    box-shadow: inset 0 0 0 0 rgba(9, 10, 8, 0);
  }
  38% {
    transform: scale(0.975);
    box-shadow: inset 0 0 0 6px rgba(9, 10, 8, 0.18);
  }
  100% {
    transform: scale(1);
    box-shadow: inset 0 0 0 0 rgba(9, 10, 8, 0);
  }
}

.phase-meter {
  width: min(38%, 280px);
  height: 3px;
  overflow: hidden;
  background: rgba(255,255,255,0.09);
}

.phase-meter i {
  width: 100%;
  height: 100%;
  display: block;
  transform: scaleX(0);
  transform-origin: left;
  background: linear-gradient(90deg, var(--acid), var(--violet));
}

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

.signal-flow {
  display: grid;
  grid-template-columns: 1fr auto 1fr auto 1fr;
  align-items: stretch;
}

.flow-card {
  min-height: 380px;
  padding: 1.4rem;
  display: flex;
  flex-direction: column;
  border: 1px solid var(--line);
  background: rgba(17,18,15,0.74);
}

.flow-index {
  color: #6f716b;
  font-size: 0.68rem;
  font-weight: 800;
  letter-spacing: 0.13em;
}

.flow-glyph {
  height: 130px;
  margin: 2rem 0 auto;
  display: flex;
  align-items: center;
  justify-content: center;
}

.flow-card h3 {
  margin: 2rem 0 0.75rem;
  font-size: 1.45rem;
  letter-spacing: -0.035em;
}

.flow-card p {
  margin: 0;
  color: var(--muted);
  font-size: 0.9rem;
  line-height: 1.65;
}

.flow-arrow {
  width: 54px;
  display: grid;
  place-items: center;
  color: var(--acid);
  font-size: 1.3rem;
}

.sensor-glyph {
  position: relative;
}

.sensor-glyph i {
  position: absolute;
  width: 28px;
  height: 28px;
  border: 2px solid var(--acid);
  border-radius: 50%;
  animation: sensor-wave 2.3s ease-out infinite;
}

.sensor-glyph i:nth-child(2) { animation-delay: 0.6s; }
.sensor-glyph i:nth-child(3) { animation-delay: 1.2s; }

@keyframes sensor-wave {
  from { transform: scale(0.4); opacity: 1; }
  to { transform: scale(3.4); opacity: 0; }
}

.classify-glyph {
  gap: 1.2rem;
  color: var(--paper);
  font-size: 1.4rem;
  font-weight: 900;
}

.classify-glyph i {
  width: 2px;
  height: 80px;
  display: block;
  background: linear-gradient(var(--acid), var(--violet));
  transform: rotate(19deg);
}

.spaces-glyph {
  position: relative;
}

.spaces-glyph i {
  position: absolute;
  width: 112px;
  height: 72px;
  border: 1px solid rgba(255,255,255,0.42);
  border-radius: 5px;
  background: #161812;
  box-shadow: 0 14px 30px rgba(0,0,0,0.22);
}

.spaces-glyph i:nth-child(1) { transform: translateX(-35px) scale(0.8); opacity: 0.5; }
.spaces-glyph i:nth-child(2) { z-index: 2; border-color: var(--acid); background: linear-gradient(135deg, #1c2512, #161812); }
.spaces-glyph i:nth-child(3) { transform: translateX(35px) scale(0.8); opacity: 0.5; }

.mapping-card {
  margin-top: 1.2rem;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  align-items: stretch;
  gap: 0;
  padding: 0;
  border: 1px solid var(--line);
  background: var(--paper);
  color: var(--ink);
}

.mapping-card div {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  padding: 2rem;
}

.mapping-card div + div {
  border-left: 1px solid rgba(9, 10, 8, 0.14);
}

.mapping-label {
  color: #6a6b66;
  font-size: 0.64rem;
  font-weight: 800;
  letter-spacing: 0.14em;
}

.mapping-card strong {
  font-size: clamp(1rem, 2vw, 1.4rem);
}

.mapping-card strong i {
  color: var(--violet);
  font-size: 1.35em;
  font-style: normal;
  font-weight: 400;
}

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

.pattern-intro {
  max-width: 940px;
  margin-bottom: 4rem;
}

.pattern-intro h2 {
  margin: 1.1rem 0 1.2rem;
  font-size: clamp(3rem, 6vw, 5.8rem);
  line-height: 0.93;
  letter-spacing: -0.065em;
}

.pattern-intro h2 em {
  color: var(--violet);
  font-family: Georgia, "Times New Roman", serif;
  font-weight: 400;
}

.pattern-intro p {
  max-width: 730px;
  color: var(--muted);
  font-size: 1.12rem;
  line-height: 1.7;
}

.pattern-board {
  overflow: hidden;
  border: 1px solid rgba(141, 104, 255, 0.5);
  background:
    linear-gradient(rgba(141, 104, 255, 0.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(141, 104, 255, 0.045) 1px, transparent 1px),
    rgba(15, 15, 14, 0.9);
  background-size: 24px 24px;
}

.pattern-board-header {
  min-height: 54px;
  padding: 0 1.4rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  border-bottom: 1px solid var(--line);
  color: #90928b;
  font-size: 0.65rem;
  font-weight: 850;
  letter-spacing: 0.13em;
}

.pattern-ready {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  color: var(--acid);
}

.pattern-ready i {
  width: 0.5rem;
  height: 0.5rem;
  border-radius: 50%;
  background: currentColor;
  box-shadow: 0 0 14px rgba(200, 255, 47, 0.65);
}

.pattern-wave {
  min-height: 250px;
  padding: 3rem clamp(1.4rem, 7vw, 6rem);
  display: flex;
  align-items: center;
}

.pattern-hit {
  position: relative;
  flex: 0 0 72px;
  height: 120px;
  display: flex;
  align-items: flex-end;
  justify-content: center;
}

.pattern-hit i {
  position: absolute;
  inset: 0 auto auto 50%;
  width: 3px;
  height: 88px;
  transform: translateX(-50%);
  background: linear-gradient(transparent, var(--acid) 22%, var(--violet) 78%, transparent);
  box-shadow: 0 0 20px rgba(141, 104, 255, 0.5);
}

.pattern-hit-two i {
  height: 112px;
  background: linear-gradient(transparent, var(--orange) 20%, var(--violet) 76%, transparent);
}

.pattern-hit-three i {
  height: 98px;
}

.pattern-hit b {
  color: #7c7e77;
  font-size: 0.63rem;
  letter-spacing: 0.12em;
}

.pattern-gap {
  position: relative;
  height: 1px;
  background: rgba(241, 239, 232, 0.28);
}

.pattern-gap::after {
  position: absolute;
  inset: -3px 0 auto;
  height: 7px;
  border-inline: 1px solid rgba(241, 239, 232, 0.42);
  content: "";
}

.pattern-gap-short {
  flex: 0.45 1 160px;
}

.pattern-gap-long {
  flex: 1 1 360px;
}

.pattern-board-footer {
  display: grid;
  grid-template-columns: 1.25fr 1fr 1fr;
  border-top: 1px solid var(--line);
}

.pattern-board-footer div {
  min-width: 0;
  padding: 1.5rem;
}

.pattern-board-footer div + div {
  border-left: 1px solid var(--line);
}

.pattern-board-footer span,
.pattern-board-footer strong {
  display: block;
}

.pattern-board-footer span {
  margin-bottom: 0.45rem;
  color: #777a72;
  font-size: 0.62rem;
  font-weight: 850;
  letter-spacing: 0.13em;
}

.pattern-board-footer strong {
  color: #d9dad4;
  font-size: 0.88rem;
  line-height: 1.45;
}

.pattern-grid {
  margin-top: 1rem;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.pattern-card {
  min-height: 300px;
  padding: 2rem;
  border: 1px solid var(--line);
  background: rgba(17, 18, 15, 0.74);
}

.pattern-card + .pattern-card {
  border-left: 0;
}

.pattern-index {
  color: var(--violet);
  font-size: 0.68rem;
  font-weight: 850;
  letter-spacing: 0.13em;
}

.pattern-card h3 {
  margin: 5rem 0 0.75rem;
  font-size: 1.45rem;
  letter-spacing: -0.035em;
}

.pattern-card p {
  margin: 0;
  color: var(--muted);
  font-size: 0.9rem;
  line-height: 1.65;
}

.pattern-local {
  margin: 1rem 0 0;
  padding: 1.3rem 1.5rem;
  border-left: 3px solid var(--acid);
  background: rgba(200, 255, 47, 0.055);
  color: var(--muted);
  font-size: 0.9rem;
  line-height: 1.65;
}

.pattern-local strong {
  color: var(--paper);
}

.mapping-arrow {
  color: var(--violet);
  font-size: 2.4rem;
  font-weight: 300;
}

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

.history-intro {
  max-width: 980px;
  margin-bottom: 5rem;
}

.history-intro em {
  color: var(--orange);
  font-family: Georgia, "Times New Roman", serif;
  font-weight: 400;
}

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

.timeline-item {
  display: grid;
  grid-template-columns: minmax(120px, 0.32fr) minmax(0, 1fr);
  gap: clamp(2rem, 8vw, 8rem);
  padding: 3.5rem 0;
  border-bottom: 1px solid var(--line);
}

.timeline-year {
  color: #777a72;
  font-size: clamp(2.2rem, 5vw, 5rem);
  font-weight: 900;
  letter-spacing: -0.07em;
}

.timeline-copy {
  max-width: 700px;
}

.timeline-copy h3 {
  margin-bottom: 0.8rem;
  font-size: clamp(1.65rem, 3vw, 2.45rem);
  letter-spacing: -0.045em;
}

.timeline-copy p {
  color: var(--muted);
  font-size: 1.04rem;
  line-height: 1.75;
}

.timeline-copy strong {
  color: var(--paper);
}

.timeline-warning .timeline-year,
.timeline-warning h3 {
  color: var(--orange);
}

.timeline-warning {
  position: relative;
}

.timeline-warning::before {
  position: absolute;
  inset: 0 -100vw;
  z-index: -1;
  content: "";
  background: rgba(255, 117, 72, 0.045);
}

.pull-quote {
  margin-top: 2rem;
  padding-left: 1.2rem;
  border-left: 2px solid var(--orange);
  color: var(--paper) !important;
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(1.35rem, 2.4vw, 2.05rem) !important;
  font-style: italic;
  line-height: 1.35 !important;
}

.timeline-now .timeline-year,
.timeline-now h3 {
  color: var(--acid);
}

.reality-check {
  width: min(calc(100% - 48px), var(--max));
  margin: 0 auto 4rem;
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 2rem;
  align-items: center;
  padding: 2.5rem;
  border: 1px solid rgba(255,117,72,0.42);
  background: rgba(255,117,72,0.075);
}

.reality-mark {
  width: 76px;
  height: 76px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: var(--orange);
  color: var(--ink);
  font-size: 2.5rem;
  font-weight: 950;
}

.reality-check .section-number {
  color: var(--orange);
}

.reality-check h2 {
  margin: 0.5rem 0 0.45rem;
  font-size: clamp(1.7rem, 3vw, 2.6rem);
  letter-spacing: -0.045em;
}

.reality-check p {
  max-width: 800px;
  margin-bottom: 0;
  color: #b1a49e;
  line-height: 1.65;
}

.open-section {
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(280px, 0.65fr);
  gap: 1rem;
}

.open-card,
.requirements {
  border: 1px solid var(--line);
}

.open-card {
  min-height: 610px;
  padding: clamp(2rem, 5vw, 5rem);
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  background: var(--acid);
  color: var(--ink);
}

.availability {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.67rem;
  font-weight: 900;
  letter-spacing: 0.13em;
}

.availability i {
  width: 0.55rem;
  height: 0.55rem;
  border-radius: 50%;
  background: var(--ink);
  animation: availability-pulse 1.7s ease-in-out infinite;
}

@keyframes availability-pulse {
  50% { opacity: 0.3; }
}

.open-card h2 {
  max-width: 700px;
  margin-top: auto;
}

.open-card p {
  max-width: 650px;
  color: #373a30;
  font-size: 1.06rem;
  line-height: 1.65;
}

.button-dark {
  margin-top: 1.3rem;
  background: var(--ink);
  color: var(--paper);
}

.button-dark:hover,
.button-dark:focus-visible {
  background: #24261f;
}

.requirements {
  padding: 2rem;
  background: #11120f;
}

.requirements h3 {
  margin-bottom: 2.2rem;
  font-size: 1.55rem;
  letter-spacing: -0.04em;
}

.requirements dl {
  margin: 0;
}

.requirements dl div {
  padding: 1.15rem 0;
  border-top: 1px solid var(--line);
}

.requirements dt {
  margin-bottom: 0.32rem;
  color: #72756e;
  font-size: 0.64rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.requirements dd {
  margin: 0;
  color: #d4d5cf;
  font-size: 0.88rem;
  line-height: 1.5;
}

footer {
  width: min(calc(100% - 48px), var(--max));
  margin: 0 auto;
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  gap: clamp(2rem, 6vw, 6rem);
  align-items: end;
  padding: 3rem 0;
  border-top: 1px solid var(--line);
}

.footer-wordmark {
  font-size: 1.35rem;
  font-weight: 950;
  letter-spacing: -0.07em;
}

.footer-wordmark span {
  color: var(--acid);
}

footer p {
  max-width: 670px;
  margin: 0;
  color: #777a73;
  font-size: 0.75rem;
  line-height: 1.55;
}

footer p a:hover,
footer p a:focus-visible {
  color: var(--paper);
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 1.2rem;
}

.footer-links a {
  color: #a4a69f;
  font-size: 0.72rem;
  font-weight: 750;
  text-decoration: none;
}

.legal-main {
  min-height: calc(100vh - 88px);
  padding: clamp(5rem, 10vw, 9rem) 0;
}

.legal-shell {
  width: min(calc(100% - 48px), 920px);
  margin: 0 auto;
}

.legal-header {
  margin-bottom: clamp(3rem, 7vw, 5.5rem);
}

.legal-header h1 {
  max-width: none;
  margin-bottom: 1.2rem;
  font-size: clamp(3.4rem, 8vw, 6.8rem);
}

.legal-header p {
  max-width: 720px;
  color: #b8bab3;
  font-size: 1.08rem;
  line-height: 1.7;
}

.legal-updated {
  display: block;
  margin-top: 1.2rem;
  color: #777a73;
  font-size: 0.75rem;
  font-weight: 750;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.legal-card {
  padding: clamp(1.5rem, 5vw, 3.5rem);
  border: 1px solid var(--line);
  border-radius: 18px;
  background: rgba(20, 21, 18, 0.78);
}

.legal-card section + section {
  margin-top: 3rem;
  padding-top: 3rem;
  border-top: 1px solid var(--line);
}

.legal-card h2 {
  margin-bottom: 1rem;
  font-size: clamp(1.65rem, 4vw, 2.3rem);
  letter-spacing: -0.04em;
}

.legal-card p,
.legal-card li {
  color: #b8bab3;
  font-size: 1rem;
  line-height: 1.75;
}

.legal-card p:last-child,
.legal-card ul:last-child {
  margin-bottom: 0;
}

.legal-card ul {
  margin: 1rem 0 0;
  padding-left: 1.35rem;
}

.legal-card li + li {
  margin-top: 0.65rem;
}

.legal-card a {
  color: var(--acid);
  text-underline-offset: 0.18em;
}

.legal-callout {
  padding: 1.3rem 1.4rem;
  border-left: 3px solid var(--acid);
  background: rgba(200, 255, 47, 0.06);
}

.reveal {
  opacity: 1;
  transform: translateY(0);
}

:focus-visible {
  outline: 2px solid var(--acid);
  outline-offset: 4px;
}

@media (max-width: 900px) {
  .hero {
    min-height: auto;
    grid-template-columns: 1fr;
    padding: 7rem 0 6rem;
  }

  .hero-copy {
    grid-column: 1;
    grid-row: 1;
  }

  .hero-orbit {
    position: absolute;
    top: 12%;
    right: -14%;
    width: 42vw;
    opacity: 0.55;
  }

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

  .flow-arrow {
    width: auto;
    height: 48px;
    transform: rotate(90deg);
  }

  .flow-card {
    min-height: 320px;
  }

  .mapping-card {
    grid-template-columns: 1fr;
  }

  .mapping-card div + div {
    border-top: 1px solid rgba(9, 10, 8, 0.14);
    border-left: 0;
  }

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

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

  .open-section {
    grid-template-columns: 1fr;
  }

  .open-card {
    min-height: 540px;
  }

  footer {
    grid-template-columns: 1fr;
    align-items: start;
    gap: 1.4rem;
  }
}

@media (max-width: 640px) {
  .site-header-inner,
  .hero,
  .demo-section,
  .how-section,
  .pattern-section,
  .history-section,
  .open-section,
  .reality-check,
  .legal-shell,
  footer {
    width: min(calc(100% - 28px), var(--max));
  }

  .site-header-inner {
    height: 72px;
  }

  main {
    padding-top: 72px;
  }

  nav {
    gap: 0.45rem;
  }

  nav a:not(.nav-github):not(.nav-download) {
    display: none;
  }

  .nav-github,
  .nav-download {
    padding: 0.55rem 0.68rem;
    font-size: 0.7rem;
  }

  .hero {
    padding: 5rem 0 5.5rem;
  }

  h1 {
    font-size: clamp(3.35rem, 17vw, 5.7rem);
    line-height: 0.92;
    letter-spacing: -0.025em;
  }

  .hero-orbit {
    top: 8%;
    right: -25%;
    width: 64vw;
    opacity: 0.34;
  }

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

  .button {
    width: 100%;
  }

  .demo-section,
  .how-section,
  .pattern-section,
  .history-section,
  .open-section {
    padding: 6rem 0;
  }

  .section-heading {
    margin-bottom: 2.6rem;
  }

  .demo-topbar > span:nth-of-type(1) {
    display: none;
  }

  .live-badge {
    margin-left: auto;
  }

  .demo-stage {
    min-height: 320px;
  }

  .demo-controls {
    grid-template-columns: 1fr;
  }

  .demo-control {
    min-height: 72px;
  }

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

  .demo-caption {
    align-items: flex-start;
    flex-direction: column;
    justify-content: center;
    gap: 0.7rem;
    padding-block: 0.8rem;
  }

  .demo-status {
    width: 100%;
    align-items: flex-start;
    flex-direction: column;
    gap: 0.55rem;
  }

  .phase-meter {
    width: 100%;
  }

  .mapping-card {
    gap: 0;
    padding: 0;
  }

  .pattern-intro {
    margin-bottom: 2.6rem;
  }

  .pattern-wave {
    min-height: 190px;
    padding: 2rem 0.7rem;
  }

  .pattern-hit {
    flex-basis: 46px;
  }

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

  .pattern-board-footer div + div {
    border-top: 1px solid var(--line);
    border-left: 0;
  }

  .pattern-card {
    min-height: auto;
  }

  .pattern-card h3 {
    margin-top: 3rem;
  }

  .timeline-item {
    grid-template-columns: 1fr;
    gap: 1.2rem;
    padding: 2.6rem 0;
  }

  .timeline-year {
    font-size: 2.4rem;
  }

  .reality-check {
    grid-template-columns: 1fr;
    padding: 1.5rem;
  }

  .reality-mark {
    width: 54px;
    height: 54px;
    font-size: 1.8rem;
  }

  .open-card {
    min-height: 520px;
    padding: 1.5rem;
  }

  .open-card h2 {
    font-size: clamp(2.7rem, 13vw, 4rem);
  }

  .footer-links {
    justify-content: space-between;
  }
}

@media (max-width: 360px) {
  .nav-github {
    display: none;
  }

  .demo-control {
    align-items: flex-start;
    flex-direction: column;
    gap: 0.45rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }
  .reveal {
    opacity: 1;
    transform: none;
  }
}