/* Fluctara public landing — app-first editorial surface */

/* Preview shelf belongs to the landing renderer, including its paused-sale state. */
.catalogue-feature-empty {
  display: grid;
  grid-column: 1 / -1;
  grid-template-columns: minmax(0, 1.12fr) minmax(280px, 0.88fr);
  gap: 40px;
  align-items: center;
  max-width: none;
  min-height: 0;
  min-width: 0;
}
.catalogue-feature-empty > * { min-width: 0; }
.release-preview-copy h3 { max-width: 590px; }
.release-preview {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  border: 1px solid var(--border-subtle);
  background: var(--border-subtle);
}
.release-preview div { min-height: 96px; padding: 18px; background: var(--bg-secondary); }
.release-preview dt {
  color: var(--text-secondary);
  font: 0.64rem/1.4 'Courier New', monospace;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}
.release-preview dd { margin-top: 8px; font-size: 0.78rem; line-height: 1.45; }

@media (max-width: 768px) {
  .catalogue-feature-empty { grid-column: auto; grid-template-columns: 1fr; width: 100%; gap: 24px; padding: 24px; }
  .release-preview { grid-template-columns: 1fr; }
  .release-preview dd { overflow-wrap: anywhere; }
}

body.landing-page {
  --landing-warm: #ffbd72;
  --landing-warm-soft: rgba(255, 189, 114, 0.12);
  --landing-green: #bde870;
  --landing-grid: rgba(84, 220, 238, 0.1);
  background: var(--bg-primary);
}

:root[data-theme="light"] body.landing-page {
  --landing-warm: #8a4b00;
  --landing-warm-soft: rgba(138, 75, 0, 0.1);
  --landing-green: #38620c;
  --landing-grid: rgba(0, 108, 123, 0.13);
}

.landing-page .container {
  padding-inline: clamp(22px, 4vw, 56px);
}

.landing-page section {
  padding-block: clamp(88px, 10vw, 148px);
}

.landing-page h1,
.landing-page h2,
.landing-page h3 {
  text-wrap: balance;
}

.landing-page p {
  text-wrap: pretty;
}

.landing-page .landing-hero {
  min-height: min(940px, 100svh);
  padding-block: 0;
  overflow: hidden;
  background: var(--bg-primary);
  text-align: left;
}

.landing-page .landing-hero canvas {
  z-index: 0;
  opacity: 0.44;
}

.hero-grid {
  position: absolute;
  inset: 74px 0 0;
  z-index: 0;
  pointer-events: none;
}

.hero-grid::before,
.hero-grid::after {
  content: '';
  position: absolute;
  opacity: 0.34;
}

.hero-grid::before {
  top: 0;
  bottom: 0;
  left: 34%;
  width: 1px;
  background: var(--landing-grid);
  box-shadow: 19vw 0 0 var(--landing-grid), 38vw 0 0 var(--landing-grid);
}

.hero-grid::after {
  right: 0;
  bottom: 82px;
  left: 0;
  height: 1px;
  background: var(--landing-grid);
}

.landing-hero-layout {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: minmax(0, 1.18fr) minmax(360px, 0.72fr);
  gap: clamp(50px, 8vw, 120px);
  align-items: center;
  width: 100%;
  padding-top: 132px;
  padding-bottom: 110px;
}

.landing-hero-copy {
  max-width: 790px;
}

.landing-page .landing-hero h1 {
  max-width: 830px;
  margin-bottom: 30px;
  background: none;
  color: var(--text-primary);
  font-size: clamp(3.45rem, 7.2vw, 6.85rem);
  font-weight: 740;
  letter-spacing: -0.068em;
  line-height: 0.94;
  -webkit-text-fill-color: currentColor;
}

.landing-hero h1 em {
  color: var(--accent-cyan);
  font-style: normal;
  font-weight: 520;
}

.hero-lede {
  max-width: 680px;
  margin-bottom: 34px;
  color: var(--text-secondary);
  font-size: clamp(1.05rem, 1.7vw, 1.28rem);
  line-height: 1.7;
}

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

.landing-page .btn {
  min-height: 50px;
  justify-content: center;
  padding: 13px 22px;
  border-radius: 0;
  font-size: 0.79rem;
  letter-spacing: 0.035em;
}

.landing-page .btn-primary {
  background: var(--accent-cyan);
  color: var(--on-accent);
}

.landing-page .btn-primary:hover {
  background: var(--accent-cyan-hover);
  box-shadow: none;
}

.app-primary-action {
  min-width: 196px;
}

.hero-facts {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  max-width: 690px;
  margin-top: 42px;
  border-top: 1px solid var(--border-subtle);
  border-bottom: 1px solid var(--border-subtle);
}

.hero-facts div {
  padding: 17px 18px 17px 0;
}

.hero-facts div + div {
  padding-left: 18px;
  border-left: 1px solid var(--border-subtle);
}

.hero-facts dt,
.console-readout span,
.release-preview dt {
  color: var(--text-secondary);
  font: 0.61rem/1.45 ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.hero-facts dd {
  margin-top: 5px;
  font-size: 0.77rem;
}

.landing-page .boundary-note {
  max-width: 650px;
  margin: 17px 0 0;
  font-size: 0.71rem;
}

.session-console {
  position: relative;
  padding: 24px;
  border: 1px solid var(--border-strong);
  background: rgba(7, 15, 18, 0.88);
  box-shadow: 18px 18px 0 rgba(84, 220, 238, 0.055);
  transform: translateY(20px);
}

:root[data-theme="light"] .session-console {
  background: rgba(248, 250, 248, 0.92);
  box-shadow: 18px 18px 0 rgba(0, 108, 123, 0.08);
}

.session-console::before {
  content: '';
  position: absolute;
  top: -1px;
  left: -1px;
  width: 38%;
  height: 3px;
  background: var(--accent-cyan);
}

.console-topline,
.app-map-title {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  color: var(--text-secondary);
  font: 0.61rem/1.4 ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.console-state i {
  display: inline-block;
  width: 6px;
  height: 6px;
  margin-right: 7px;
  border-radius: 50%;
  background: var(--landing-green);
}

.console-wave {
  display: flex;
  gap: 6px;
  align-items: center;
  height: 170px;
  margin-block: 24px;
  padding-inline: 6px;
  border-block: 1px solid var(--border-subtle);
}

.console-wave span {
  flex: 1;
  height: 14%;
  min-width: 3px;
  background: var(--accent-cyan);
}

.console-wave span:nth-child(2),
.console-wave span:nth-child(15) { height: 28%; }
.console-wave span:nth-child(3),
.console-wave span:nth-child(14) { height: 49%; }
.console-wave span:nth-child(4),
.console-wave span:nth-child(13) { height: 73%; }
.console-wave span:nth-child(5),
.console-wave span:nth-child(12) { height: 92%; }
.console-wave span:nth-child(6),
.console-wave span:nth-child(11) { height: 67%; }
.console-wave span:nth-child(7),
.console-wave span:nth-child(10) { height: 42%; background: var(--landing-warm); }
.console-wave span:nth-child(8),
.console-wave span:nth-child(9) { height: 24%; background: var(--landing-warm); }

.console-readout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1px;
  background: var(--border-subtle);
}

.console-readout div {
  min-width: 0;
  padding: 13px;
  background: var(--bg-secondary);
}

.console-readout strong {
  display: block;
  margin-top: 5px;
  font-size: 0.72rem;
  font-weight: 560;
}

.console-timeline {
  display: grid;
  grid-template-columns: 1fr 1.4fr 0.8fr 1.2fr;
  gap: 4px;
  margin-top: 22px;
}

.console-timeline i {
  height: 3px;
  background: var(--border-strong);
}

.console-timeline i:first-child,
.console-timeline i:nth-child(2) {
  background: var(--accent-cyan);
}

.session-console > p {
  margin-top: 15px;
  color: var(--text-secondary);
  font-size: 0.68rem;
  line-height: 1.55;
}

.hero-index {
  position: absolute;
  right: clamp(22px, 4vw, 56px);
  bottom: 26px;
  left: clamp(22px, 4vw, 56px);
  z-index: 2;
  display: flex;
  justify-content: space-between;
  color: var(--text-secondary);
  font: 0.58rem/1 ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  letter-spacing: 0.12em;
}

.app-section {
  background: var(--bg-primary);
}

.app-map {
  display: grid;
  grid-template-columns: minmax(0, 2.2fr) minmax(280px, 0.8fr);
  border: 1px solid var(--border-strong);
}

.app-map-primary {
  min-width: 0;
  padding: clamp(28px, 4vw, 52px);
  border-right: 1px solid var(--border-strong);
  background: var(--bg-card);
}

.app-map-title span:first-child {
  color: var(--accent-cyan);
}

.operating-loop {
  display: grid;
  grid-template-columns: 1fr 1fr;
  margin: 40px 0 34px;
  border-top: 1px solid var(--border-subtle);
  border-left: 1px solid var(--border-subtle);
  list-style: none;
}

.operating-loop li {
  display: grid;
  grid-template-columns: 36px 1fr;
  gap: 18px;
  min-height: 164px;
  padding: 26px;
  border-right: 1px solid var(--border-subtle);
  border-bottom: 1px solid var(--border-subtle);
}

.operating-loop li > span {
  color: var(--accent-cyan);
  font: 0.68rem/1 ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}

.operating-loop h3 {
  margin-bottom: 10px;
  font-size: 1.1rem;
}

.operating-loop p,
.app-map-aside > p:not(.app-map-aside-label) {
  color: var(--text-secondary);
  font-size: 0.82rem;
  line-height: 1.7;
}

.app-map-link {
  font-size: 0.8rem;
}

.app-map-aside {
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: clamp(28px, 4vw, 46px);
  background: var(--bg-secondary);
}

.app-map-aside-label {
  margin-bottom: auto;
  color: var(--landing-warm);
  font: 0.63rem/1.4 ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.app-map-aside h3 {
  margin: 80px 0 15px;
  font-size: clamp(1.65rem, 2.5vw, 2.25rem);
  line-height: 1.05;
}

.app-map-aside .text-link {
  margin-top: 26px;
  color: var(--landing-warm);
}

.capability-line {
  display: flex;
  gap: 14px;
  align-items: center;
  justify-content: space-between;
  padding: 23px 0;
  color: var(--text-secondary);
  font: 0.64rem/1.5 ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  letter-spacing: 0.055em;
  text-transform: uppercase;
}

.capability-line i {
  flex: 1;
  height: 1px;
  background: var(--border-strong);
}

.technology-section {
  background: var(--bg-secondary);
}

.signal-stack {
  margin: 0 0 80px;
  padding: 0;
  border-top: 1px solid var(--border-strong);
  list-style: none;
}

.signal-stack li {
  display: grid;
  grid-template-columns: 46px minmax(220px, 0.8fr) minmax(280px, 1.2fr) minmax(190px, 0.6fr);
  gap: 28px;
  align-items: center;
  padding: 28px 0;
  border-bottom: 1px solid var(--border-subtle);
}

.stack-index {
  color: var(--accent-cyan);
  font: 1.2rem/1 ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}

.stack-label {
  margin-bottom: 5px;
  color: var(--text-secondary);
  font: 0.59rem/1.4 ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  letter-spacing: 0.09em;
  text-transform: uppercase;
}

.signal-stack h3 {
  font-size: 1rem;
}

.signal-stack li > p {
  color: var(--text-secondary);
  font-size: 0.8rem;
  line-height: 1.65;
}

.signal-stack code {
  color: var(--landing-green);
  font-size: 0.67rem;
  white-space: normal;
}

.coherence-lab {
  display: grid;
  grid-template-columns: minmax(280px, 0.72fr) minmax(0, 1.28fr);
  border: 1px solid var(--border-strong);
}

.coherence-copy {
  padding: clamp(30px, 4vw, 52px);
  border-right: 1px solid var(--border-strong);
  background: var(--bg-primary);
}

.coherence-copy h3 {
  max-width: 420px;
  margin-bottom: 18px;
  font-size: clamp(2rem, 3.5vw, 3.4rem);
  letter-spacing: -0.04em;
  line-height: 1.03;
}

.coherence-copy > p:not(.eyebrow):not(.model-equation) {
  color: var(--text-secondary);
  font-size: 0.88rem;
  line-height: 1.75;
}

.model-equation {
  margin-top: 48px;
  color: var(--accent-cyan);
  font: 1.05rem/1.4 ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}

.coherence-runtime {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 230px;
  min-width: 0;
  background: var(--bg-card);
}

.landing-page .demo-canvas-wrap {
  min-height: 390px;
  border-radius: 0;
  background: var(--bg-card);
}

.demo-controls {
  padding: 28px 24px;
  border-left: 1px solid var(--border-subtle);
}

.demo-controls label {
  font-size: 0.73rem;
}

.demo-controls output {
  display: block;
  margin-top: 7px;
  color: var(--accent-cyan);
  font: 1.8rem/1 ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}

.demo-readout {
  margin-block: 24px;
}

.demo-readout div {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  padding-block: 8px;
  border-bottom: 1px solid var(--border-subtle);
  font-size: 0.69rem;
}

.demo-readout dt {
  color: var(--text-secondary);
}

.demo-readout dd {
  text-align: right;
}

.landing-page .btn-demo {
  width: 100%;
  padding-inline: 12px;
  background: var(--surface-mid);
  color: var(--text-primary);
  font-size: 0.69rem;
}

.showcase-section-v2 {
  background: var(--bg-primary);
}

.showcase-intro-v2 > div {
  color: var(--text-secondary);
  font-size: 0.92rem;
  line-height: 1.8;
}

.channel-note-v2 {
  margin-top: 22px;
  padding-left: 18px;
  border-left: 2px solid var(--landing-warm);
}

.channel-note-v2 strong {
  color: var(--landing-warm);
}

.showcase-grid-v2 {
  display: grid;
  grid-template-columns: 1.25fr 0.75fr;
  gap: 1px;
  border: 1px solid var(--border-strong);
  background: var(--border-strong);
}

.study {
  min-width: 0;
  background: var(--bg-card);
}

.study-wide {
  grid-row: span 2;
}

.study .showcase-visual {
  width: 100%;
  height: 250px;
  aspect-ratio: auto;
  border: 0;
  border-bottom: 1px solid var(--border-subtle);
  border-radius: 0;
  background: var(--bg-secondary);
}

.study-wide .showcase-visual {
  height: 500px;
}

.study figcaption {
  padding: 24px 28px 28px;
}

.study figcaption > span {
  color: var(--accent-cyan);
  font: 0.58rem/1 ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  letter-spacing: 0.09em;
  text-transform: uppercase;
}

.study figcaption h3 {
  margin: 12px 0 9px;
  font-size: 1.22rem;
}

.study figcaption p {
  color: var(--text-secondary);
  font-size: 0.79rem;
  line-height: 1.68;
}

.study .wave,
.study .cymatics-rings,
.study .stimulus-field {
  stroke: var(--accent-cyan);
}

.study .wave-two,
.study .cymatics-rings path:last-child {
  stroke: var(--landing-warm);
}

.showcase-boundary-v2 {
  display: grid;
  grid-template-columns: 210px 1fr;
  gap: 30px;
  margin-top: 24px;
  padding: 22px 26px;
  border-left: 2px solid var(--accent-cyan);
  background: var(--surface-soft);
}

.showcase-boundary-v2 span {
  color: var(--accent-cyan);
  font: 0.62rem/1.5 ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  letter-spacing: 0.09em;
  text-transform: uppercase;
}

.showcase-boundary-v2 p {
  color: var(--text-secondary);
  font-size: 0.8rem;
}

.prebuilt-section {
}

.prebuilt-intro {
  align-items: start;
}

.prebuilt-intro .eyebrow {
  grid-column: auto;
}

.prebuilt-intro > div:first-child .eyebrow {
  margin-bottom: 28px;
}

.prebuilt-intro > div:last-child > p {
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.8;
}

.prebuilt-actions,
.prebuilt-secondary-action {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 28px;
}

.prebuilt-shelf {
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  border: 1px solid var(--border-strong);
  background: var(--border-strong);
}

.landing-page .catalogue-feature-card {
  min-height: 320px;
  border: 0;
  background: var(--bg-card);
}

.landing-page .catalogue-feature-empty {
  grid-template-columns: minmax(0, 1.15fr) minmax(300px, 0.85fr);
  gap: clamp(30px, 5vw, 72px);
  padding: clamp(30px, 5vw, 58px);
}

.landing-page .catalogue-feature-empty h3 {
  max-width: 660px;
  margin-block: 16px;
  font-size: clamp(1.6rem, 3vw, 2.6rem);
  letter-spacing: -0.035em;
  line-height: 1.08;
}

.landing-page .catalogue-feature-empty p {
  max-width: 650px;
}

.landing-page .release-preview {
  border-color: var(--border-strong);
  background: var(--border-strong);
}

.landing-page .release-preview div {
  background: var(--bg-secondary);
}

.prebuilt-standard {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border-bottom: 1px solid var(--border-strong);
  scroll-margin-top: 92px;
}

.prebuilt-standard p {
  padding: 24px 24px 24px 0;
  color: var(--text-secondary);
  font-size: 0.77rem;
  line-height: 1.65;
}

.prebuilt-standard p + p {
  padding-left: 24px;
  border-left: 1px solid var(--border-subtle);
}

.prebuilt-standard strong {
  display: block;
  margin-bottom: 7px;
  color: var(--text-primary);
}

.prebuilt-secondary-action {
  justify-content: flex-end;
}

.evidence-section-v2 {
  background: var(--bg-primary);
}

.evidence-intro-v2 h2 em {
  color: var(--landing-warm);
  font-style: normal;
  font-weight: 500;
}

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

.evidence-ledger article {
  display: flex;
  flex-direction: column;
  min-height: 330px;
  padding: 34px;
}

.evidence-ledger article + article {
  border-left: 1px solid var(--border-strong);
}

.evidence-ledger article > span,
.research-boundary div > span {
  color: var(--accent-cyan);
  font: 0.62rem/1.5 ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.evidence-ledger article:last-child > span {
  color: var(--landing-warm);
}

.evidence-ledger h3 {
  margin: 54px 0 15px;
  font-size: clamp(1.35rem, 2.3vw, 1.8rem);
  line-height: 1.1;
}

.evidence-ledger p {
  margin-bottom: 28px;
  color: var(--text-secondary);
  font-size: 0.81rem;
  line-height: 1.7;
}

.evidence-ledger .text-link {
  margin-top: auto;
}

.research-boundary {
  display: grid;
  grid-template-columns: 1fr 1fr minmax(220px, 0.75fr);
  border-bottom: 1px solid var(--border-strong);
}

.research-boundary > * {
  padding: 26px 30px;
}

.research-boundary > * + * {
  border-left: 1px solid var(--border-subtle);
}

.research-boundary strong,
.research-boundary a {
  display: block;
}

.research-boundary strong {
  margin-block: 8px 14px;
  font-size: 0.83rem;
}

.research-boundary a {
  color: var(--text-secondary);
  font-size: 0.72rem;
  text-decoration: none;
}

.research-boundary p {
  color: var(--text-secondary);
  font-size: 0.76rem;
  line-height: 1.65;
}

.app-closing {
  min-height: 660px;
  display: grid;
  align-items: center;
  background: var(--bg-secondary);
}

.app-closing-layout {
  position: relative;
  padding-right: clamp(22px, 25vw, 360px);
}

.app-closing-layout::after {
  content: '∿';
  position: absolute;
  top: 50%;
  right: clamp(22px, 6vw, 90px);
  color: var(--accent-cyan);
  font: 220px/1 Georgia, serif;
  opacity: 0.16;
  transform: translateY(-54%);
}

.app-closing h2 {
  max-width: 850px;
  margin-bottom: 24px;
  font-size: clamp(3.2rem, 6.3vw, 6rem);
  letter-spacing: -0.06em;
  line-height: 0.97;
}

.app-closing-layout > p:not(.eyebrow) {
  max-width: 620px;
  margin-bottom: 34px;
  color: var(--text-secondary);
  font-size: 1rem;
  line-height: 1.75;
}

.landing-footer {
  border-top: 1px solid var(--border-faint);
  background: var(--bg-primary);
}

.landing-page .footer-grid-expanded {
  grid-template-columns: 1.8fr 1fr 1fr 1fr;
}

.landing-page .footer h2.footer-brand {
  color: var(--text-primary);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

@media (min-width: 901px) and (max-height: 920px) {
  .landing-hero-layout {
    padding-top: 104px;
    padding-bottom: 62px;
  }

  .landing-page .landing-hero h1 {
    margin-bottom: 20px;
    font-size: clamp(3.45rem, 6vw, 5.6rem);
  }

  .landing-hero .eyebrow {
    margin-bottom: 18px;
  }

  .hero-lede {
    margin-bottom: 24px;
    line-height: 1.55;
  }

  .hero-facts {
    margin-top: 28px;
  }

  .hero-facts div {
    padding-block: 13px;
  }

  .session-console {
    transform: none;
  }
}

@media (max-width: 1080px) {
  .landing-hero-layout {
    grid-template-columns: minmax(0, 1fr) 340px;
    gap: 42px;
  }

  .signal-stack li {
    grid-template-columns: 36px minmax(180px, 0.8fr) minmax(240px, 1.2fr);
  }

  .signal-stack code {
    grid-column: 2 / -1;
  }

  .coherence-runtime {
    grid-template-columns: 1fr;
  }

  .demo-controls {
    border-top: 1px solid var(--border-subtle);
    border-left: 0;
  }
}

@media (max-width: 900px) {
  .landing-hero-layout,
  .app-map,
  .coherence-lab,
  .prebuilt-intro {
    grid-template-columns: 1fr;
  }

  .landing-page .landing-hero {
    min-height: 0;
  }

  .landing-hero-layout {
    padding-top: 150px;
    padding-bottom: 120px;
  }

  .session-console {
    max-width: 600px;
    transform: none;
  }

  .app-map-primary {
    border-right: 0;
    border-bottom: 1px solid var(--border-strong);
  }

  .app-map-aside h3 {
    margin-top: 44px;
  }

  .coherence-copy {
    border-right: 0;
    border-bottom: 1px solid var(--border-strong);
  }

  .showcase-grid-v2 {
    grid-template-columns: 1fr 1fr;
  }

  .study-wide {
    grid-column: 1 / -1;
    grid-row: auto;
  }

  .study-wide .showcase-visual {
    height: 430px;
  }

  .landing-page .catalogue-feature-empty {
    grid-column: 1 / -1;
    grid-template-columns: 1fr;
  }

  .evidence-ledger {
    grid-template-columns: 1fr;
  }

  .evidence-ledger article {
    min-height: 0;
  }

  .evidence-ledger article + article {
    border-top: 1px solid var(--border-strong);
    border-left: 0;
  }

  .evidence-ledger h3 {
    margin-top: 32px;
  }

  .research-boundary {
    grid-template-columns: 1fr 1fr;
  }

  .research-boundary > p {
    grid-column: 1 / -1;
    border-top: 1px solid var(--border-subtle);
    border-left: 0;
  }
}

@media (max-width: 768px) {
  .landing-page section {
    padding-block: 82px;
  }

  .landing-hero-layout {
    gap: 54px;
    padding-top: 126px;
    padding-bottom: 94px;
  }

  .landing-page .landing-hero h1 {
    font-size: clamp(3rem, 14.5vw, 4.6rem);
  }

  .hero-lede {
    font-size: 1rem;
  }

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

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

  .hero-facts div,
  .hero-facts div + div {
    padding: 13px 0;
    border-top: 1px solid var(--border-subtle);
    border-left: 0;
  }

  .hero-facts div:first-child {
    border-top: 0;
  }

  .session-console {
    margin-right: 10px;
    padding: 20px;
    box-shadow: 10px 10px 0 rgba(84, 220, 238, 0.055);
  }

  .console-wave {
    height: 130px;
    gap: 4px;
  }

  .hero-index {
    display: none;
  }

  .operating-loop {
    grid-template-columns: 1fr;
  }

  .operating-loop li {
    min-height: 0;
  }

  .capability-line {
    align-items: flex-start;
    flex-direction: column;
  }

  .capability-line i {
    width: 34px;
    flex: none;
  }

  .signal-stack li {
    grid-template-columns: 32px 1fr;
    gap: 16px;
  }

  .signal-stack li > p,
  .signal-stack code {
    grid-column: 2;
  }

  .coherence-runtime {
    grid-template-columns: 1fr;
  }

  .landing-page .demo-canvas-wrap {
    min-height: 260px;
  }

  .showcase-grid-v2 {
    grid-template-columns: 1fr;
  }

  .study-wide {
    grid-column: auto;
  }

  .study-wide .showcase-visual,
  .study .showcase-visual {
    height: 260px;
  }

  .showcase-boundary-v2 {
    grid-template-columns: 1fr;
    gap: 10px;
  }

  .prebuilt-actions,
  .prebuilt-secondary-action {
    align-items: stretch;
    flex-direction: column;
  }

  .landing-page .prebuilt-shelf {
    grid-template-columns: minmax(0, 1fr);
  }

  .landing-page .catalogue-feature-empty {
    grid-column: 1;
    width: 100%;
  }

  .prebuilt-standard {
    grid-template-columns: 1fr;
  }

  .prebuilt-standard p,
  .prebuilt-standard p + p {
    padding: 18px 0;
    border-top: 1px solid var(--border-subtle);
    border-left: 0;
  }

  .research-boundary {
    grid-template-columns: 1fr;
  }

  .research-boundary > * + *,
  .research-boundary > p {
    grid-column: auto;
    border-top: 1px solid var(--border-subtle);
    border-left: 0;
  }

  .app-closing {
    min-height: 0;
  }

  .app-closing-layout {
    padding-right: 22px;
  }

  .app-closing-layout::after {
    display: none;
  }

  .app-closing h2 {
    font-size: clamp(3rem, 13vw, 4.4rem);
  }

  .landing-page .footer-grid-expanded {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 420px) {
  .console-readout {
    grid-template-columns: 1fr;
  }

  .console-topline {
    align-items: flex-start;
    flex-direction: column;
  }
}

@media (prefers-reduced-motion: reduce) {
  .session-console,
  .landing-page .fade-in {
    transform: none;
  }
}

@media (forced-colors: active) {
  .session-console,
  .app-map,
  .coherence-lab,
  .showcase-grid-v2,
  .evidence-ledger {
    border: 1px solid CanvasText;
  }

  .console-wave span,
  .console-timeline i,
  .capability-line i {
    background: CanvasText;
  }
}

/* ── Welcome gate ────────────────────────────────────────────────────────── */
.gate-screen {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100svh;
  padding: calc(var(--nav-height) + 40px) 0 96px;
  text-align: center;
}

.gate-inner {
  position: relative;
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 22px;
}

.gate-eyebrow {
  margin: 0;
  color: var(--text-secondary);
  font: 0.62rem/1 ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  letter-spacing: 0.34em;
  text-transform: uppercase;
}

.gate-wordmark {
  margin: 0;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--border-subtle);
  color: var(--text-primary);
  font-size: clamp(2.9rem, 9vw, 5.6rem);
  font-weight: 300;
  letter-spacing: 0.16em;
  line-height: 1;
  text-indent: 0.16em;
}

.gate-statement {
  max-width: 60ch;
  margin: 0;
  color: var(--text-secondary);
  font-size: clamp(1rem, 1.5vw, 1.16rem);
  line-height: 1.65;
}

.gate-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 14px;
  margin-top: 6px;
}

.btn-enter {
  border: 1px solid var(--accent-cyan);
  background: transparent;
  color: var(--accent-cyan);
  font-size: 1.02rem;
  letter-spacing: 0.06em;
  padding: 15px 40px;
}

.btn-enter:hover,
.btn-enter:focus-visible {
  background: var(--accent-cyan);
  color: var(--on-accent);
  box-shadow: 0 0 0 6px rgba(0, 212, 255, 0.12);
}

.gate-boundary {
  max-width: 56ch;
  margin: 10px 0 0;
  color: var(--text-secondary);
  font-size: 0.79rem;
  line-height: 1.6;
  opacity: 0.82;
}

.gate-index {
  position: absolute;
  right: clamp(22px, 4vw, 56px);
  bottom: 26px;
  left: clamp(22px, 4vw, 56px);
  z-index: 2;
  display: flex;
  justify-content: space-between;
  color: var(--text-secondary);
  font: 0.58rem/1 ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  letter-spacing: 0.12em;
}

/* ── What it is ──────────────────────────────────────────────────────────── */
.intro-section {
  padding-block: clamp(72px, 9vw, 128px);
}

.intro-measure {
  margin-top: 32px;
  padding: 26px 28px;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius);
  background: var(--surface-hint);
}

.intro-measure p {
  margin: 0 0 14px;
  color: var(--text-secondary);
  line-height: 1.7;
}

.intro-measure strong {
  color: var(--text-primary);
}

/* ── Explore map ─────────────────────────────────────────────────────────── */
.explore-section {
  padding-block: clamp(72px, 9vw, 128px);
  background: var(--surface-hint);
}

.explore-grid {
  display: grid;
  gap: 18px;
  grid-template-columns: repeat(auto-fit, minmax(258px, 1fr));
  margin-top: 44px;
}

.explore-card {
  display: block;
  padding: 24px 22px;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius);
  background: var(--bg-card);
  color: inherit;
  text-decoration: none;
  transition: border-color var(--transition), transform var(--transition);
}

.explore-card:hover,
.explore-card:focus-visible {
  border-color: var(--accent-cyan);
  transform: translateY(-2px);
}

.explore-card > span {
  display: inline-block;
  margin-bottom: 12px;
  color: var(--accent-cyan);
  font: 0.58rem/1 ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  letter-spacing: 0.2em;
  text-transform: uppercase;
}

.explore-card h3 {
  margin: 0 0 9px;
  font-size: 1.02rem;
}

.explore-card p {
  margin: 0;
  color: var(--text-secondary);
  font-size: 0.88rem;
  line-height: 1.62;
}

.explore-card-shop {
  border-left: 2px solid var(--accent-cyan);
}

.explore-records {
  margin-top: 30px;
  padding: 22px 26px;
  border-left: 2px solid var(--border-strong);
  background: var(--surface-hint);
}

.explore-records p {
  margin: 0;
  color: var(--text-secondary);
  line-height: 1.7;
}

/* ── Coherence and closing ───────────────────────────────────────────────── */
.coherence-section {
  padding-block: clamp(72px, 9vw, 120px);
}

.closing-section {
  padding-block: clamp(72px, 9vw, 120px);
  text-align: center;
}

.closing-layout {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 18px;
}

.closing-layout h2 {
  margin: 0;
}

.closing-layout > p {
  max-width: 58ch;
  margin: 0;
  color: var(--text-secondary);
  line-height: 1.7;
}

@media (max-width: 720px) {
  .gate-wordmark {
    letter-spacing: 0.1em;
    text-indent: 0.1em;
  }

  .gate-index {
    display: none;
  }
}