:root {
  --sc-canvas: #111513;
  --sc-surface: #1b211d;
  --sc-ink: #eef0e7;
  --sc-ink-soft: #aab2a8;
  --sc-accent: #c9f36a;
  --sc-accent-ink: #172015;
  --sc-font-display: -apple-system, BlinkMacSystemFont, "Avenir Next", system-ui, sans-serif;
  --sc-font-text: -apple-system, BlinkMacSystemFont, "Avenir Next", system-ui, sans-serif;
  --mono: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
  --line: color-mix(in srgb, var(--sc-ink) 17%, transparent);
}

html {
  background: var(--sc-canvas);
}
body {
  min-width: 320px;
}
a {
  color: inherit;
}
button {
  cursor: pointer;
}

.masthead {
  width: min(100% - 2 * var(--sc-gutter), 86rem);
  min-height: 5rem;
  margin-inline: auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--line);
}
.wordmark {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  text-decoration: none;
  font-weight: 650;
  letter-spacing: -0.035em;
}
.wordmark img {
  flex: none;
}
.wordmark--small {
  font-size: 0.94rem;
}
.top-nav {
  display: flex;
  gap: clamp(1rem, 3vw, 2.5rem);
  font-size: 0.86rem;
  color: var(--sc-ink-soft);
}
.top-nav a {
  text-decoration: none;
}
.top-nav a:hover,
.text-link:hover,
.row-link:hover,
.close-link:hover {
  color: var(--sc-accent);
}

.opening {
  width: min(100% - 2 * var(--sc-gutter), 86rem);
  min-height: min(46rem, calc(100svh - 5rem));
  margin-inline: auto;
  padding-block: clamp(3.5rem, 9vh, 7rem) 4rem;
  display: grid;
  grid-template-columns: minmax(0, 1fr) 10rem;
  align-items: center;
  position: relative;
}
.opening__copy {
  max-width: 58rem;
}
.kicker,
.chapter-label,
.project-status,
.agent-list__label,
.project-license,
.project-meta dt,
.route-kicker {
  font: 500 0.72rem/1.4 var(--mono);
  letter-spacing: 0.065em;
  text-transform: uppercase;
}
.kicker {
  color: var(--sc-accent);
  margin: 0 0 1.4rem;
}
.opening h1,
.project-opening h1 {
  margin: 0;
  max-width: 11ch;
  font-size: clamp(3.05rem, 8.4vw, 7.5rem);
  line-height: 0.92;
  letter-spacing: -0.075em;
  font-weight: 620;
  text-wrap: balance;
}
.opening h1 span {
  color: var(--sc-ink-soft);
  font-weight: 470;
}
.opening__summary {
  max-width: 46rem;
  margin: 1.8rem 0 2rem;
  color: var(--sc-ink-soft);
  font-size: clamp(1rem, 1.4vw, 1.18rem);
  line-height: 1.65;
  text-wrap: pretty;
}
.opening__notes {
  margin-top: 1rem;
}
.text-link,
.row-link,
.close-link {
  display: inline-flex;
  gap: 0.5rem;
  align-items: center;
  text-decoration-thickness: 1px;
  text-underline-offset: 0.3em;
  font-size: 0.9rem;
  transition: color 160ms ease;
}
.folio {
  align-self: center;
  justify-self: end;
  display: flex;
  align-items: center;
  gap: 0.75rem;
  writing-mode: vertical-rl;
  color: var(--sc-ink-soft);
  font: 500 0.72rem/1 var(--mono);
  letter-spacing: 0.06em;
}
.folio__number {
  color: var(--sc-accent);
}
.folio__rule {
  height: 3.8rem;
  width: 1px;
  background: var(--line);
}
.folio__name {
  max-height: 5rem;
}

.handoff {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  column-gap: 1.2rem;
  row-gap: 0.8rem;
  max-width: 46rem;
}
.agent-list {
  min-width: 0;
}
.agent-list__label {
  display: block;
  color: var(--sc-ink-soft);
  font-size: 0.66rem;
  margin-bottom: 0.5rem;
}
.agent-logos {
  display: flex;
  list-style: none;
  align-items: center;
  gap: clamp(0.65rem, 2.2vw, 1.3rem);
  padding: 0;
  margin: 0;
}
.agent-logos li {
  display: inline-flex;
  align-items: center;
  gap: 0.36rem;
  white-space: nowrap;
  font-size: 0.77rem;
  font-weight: 560;
}
.agent-logos img {
  width: 1.05rem;
  height: 1.05rem;
  object-fit: contain;
  filter: brightness(0) invert(1);
}
.agent-logos img[src*="codex"] {
  filter: none;
}
.copy-button {
  min-height: 2.9rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.7rem;
  padding: 0.78rem 1.05rem;
  border: 1px solid var(--sc-accent);
  border-radius: 4px;
  background: var(--sc-accent);
  color: var(--sc-accent-ink);
  font-weight: 650;
  font-size: 0.88rem;
  white-space: nowrap;
  transition:
    background-color 160ms ease,
    color 160ms ease,
    transform 160ms ease;
}
.copy-button:hover {
  background: transparent;
  color: var(--sc-ink);
  transform: translateY(-1px);
}
.copy-button:active {
  transform: translateY(0);
}
.copy-button svg {
  width: 1.15rem;
  height: 1.15rem;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.5;
  stroke-linecap: round;
  stroke-linejoin: round;
}
.copy-status {
  grid-column: 1 / -1;
  min-height: 1.1rem;
  margin: 0;
  color: var(--sc-accent);
  font-size: 0.8rem;
}
.copy-status:empty {
  display: none;
}
.prompt-fallback-label {
  grid-column: 1 / -1;
  color: var(--sc-ink-soft);
  font-size: 0.8rem;
}
.prompt-fallback {
  width: 100%;
  margin-top: 0.35rem;
  padding: 0.65rem;
  background: var(--sc-surface);
  color: var(--sc-ink);
  border: 1px solid var(--line);
  border-radius: 3px;
  resize: vertical;
  font: 0.78rem/1.45 var(--mono);
}
.prompt-fallback-label[hidden] {
  display: none;
}

.chapter {
  position: relative;
  padding: clamp(4.5rem, 10vw, 9rem) var(--sc-gutter);
}
.chapter__inner {
  width: min(100%, 82rem);
  margin-inline: auto;
  display: grid;
  grid-template-columns: minmax(16rem, 0.82fr) minmax(0, 1.18fr);
  gap: clamp(2.5rem, 8vw, 8rem);
  align-items: center;
}
.chapter--paper {
  background: #e7e9de;
  color: #1d2520;
  --sc-ink: #1d2520;
  --sc-ink-soft: #4c5950;
  --sc-accent: #4b6d32;
  --sc-accent-ink: #f5f6ed;
  --line: rgba(29, 37, 32, 0.22);
}
.chapter--paper .chapter__copy p:not(.chapter-label) {
  color: #425047;
}
.chapter-label {
  display: flex;
  gap: 0.8rem;
  align-items: center;
  margin: 0 0 1.3rem;
  color: var(--sc-accent);
}
.chapter-label span {
  color: var(--sc-ink-soft);
}
.chapter h2 {
  margin: 0;
  max-width: 14ch;
  font-size: clamp(2.1rem, 4.8vw, 4.6rem);
  line-height: 0.99;
  letter-spacing: -0.065em;
  font-weight: 570;
  text-wrap: balance;
}
.chapter__copy > p:not(.chapter-label) {
  max-width: 43rem;
  margin: 1.4rem 0 0;
  color: var(--sc-ink-soft);
  font-size: 1rem;
  line-height: 1.72;
  text-wrap: pretty;
}
.bench-figure {
  margin: 0;
}
.bench-diagram {
  width: 100%;
  overflow: visible;
}
.bench-diagram .diagram-grid {
  fill: none;
  stroke: rgba(31, 44, 35, 0.1);
  stroke-width: 1;
}
.bench-diagram .bench-path {
  fill: none;
  stroke: #4b6d32;
  stroke-width: 3;
  stroke-linecap: square;
  stroke-linejoin: bevel;
}
.bench-diagram .path-node {
  fill: #e7e9de;
  stroke: #4b6d32;
  stroke-width: 3;
}
.bench-diagram .diagram-board rect,
.bench-diagram .diagram-cards rect {
  fill: #f2f3eb;
  stroke: #1d2520;
  stroke-width: 2;
}
.bench-diagram .diagram-board path {
  stroke: #667569;
  stroke-width: 1;
}
.bench-diagram .diagram-board circle {
  fill: #536942;
  stroke: #1d2520;
  stroke-width: 1.5;
}
.bench-diagram .diagram-cards path {
  fill: none;
  stroke: #4b6d32;
  stroke-width: 2;
}
.bench-diagram .diagram-light {
  fill: none;
  stroke: #4b6d32;
  stroke-width: 2;
}
.bench-diagram .diagram-light circle:first-of-type {
  fill: #f2f3eb;
}
.bench-diagram .diagram-light circle:nth-of-type(2) {
  stroke-dasharray: 3 5;
}
.bench-diagram text {
  fill: #53624f;
  font: 11px var(--mono);
  letter-spacing: 0.08em;
}
.bench-figure figcaption {
  margin-top: 0.6rem;
  color: #53624f;
  font-size: 0.75rem;
  line-height: 1.45;
}

.chapter--ink {
  background: #17201a;
}
.chapter__inner--stack {
  display: block;
}
.chapter__copy--wide {
  max-width: 58rem;
  margin-bottom: clamp(3rem, 7vw, 6rem);
}
.chapter__copy--wide h2 {
  max-width: 15ch;
}
.project-list {
  border-top: 1px solid var(--line);
}
.project-row {
  display: grid;
  grid-template-columns: minmax(9rem, 16rem) minmax(0, 1fr) 7rem;
  align-items: center;
  column-gap: clamp(1.5rem, 5vw, 4.5rem);
  padding: 1.6rem 0;
  border-bottom: 1px solid var(--line);
}
.project-row__visual {
  min-height: 9rem;
  display: grid;
  place-items: center;
  text-decoration: none;
  overflow: hidden;
}
.project-row__visual svg {
  width: min(100%, 13rem);
  height: auto;
  transition: transform 260ms cubic-bezier(0.22, 0.75, 0.25, 1);
}
.project-row__visual:hover svg {
  transform: translateY(-3px) rotate(-1deg);
}
.visual--vesper .board-base {
  fill: #27352d;
  stroke: #d2dccb;
  stroke-width: 2;
}
.visual--vesper .board-lines {
  fill: none;
  stroke: #83937e;
  stroke-width: 1;
}
.checker {
  stroke: #142019;
  stroke-width: 1.5;
}
.checker--light {
  fill: #e3e6d8;
}
.checker--dark {
  fill: #8da36f;
}
.visual--riffle .card-back {
  fill: #344347;
  stroke: #b8d2c6;
  stroke-width: 1.5;
}
.visual--riffle .card-front {
  fill: #e5e4d8;
  stroke: #b8d2c6;
  stroke-width: 1.5;
}
.visual--riffle .card-mark,
.visual--riffle .card-line {
  fill: none;
  stroke: #385e56;
  stroke-width: 2;
}
.visual--nightglass .ray {
  stroke: #c9f36a;
  stroke-width: 1.4;
  opacity: 0.7;
}
.visual--nightglass .sphere {
  fill: #303f39;
  stroke: #c6d0c2;
  stroke-width: 1.3;
}
.visual--nightglass .sphere--two {
  fill: #c9f36a;
  stroke: none;
}
.visual--nightglass .orbit {
  fill: none;
  stroke: #8e9c92;
  stroke-width: 1;
  stroke-dasharray: 3 4;
}
.visual--next .open-line,
.visual--next .open-arrow {
  fill: none;
  stroke: #c9f36a;
  stroke-width: 2;
}
.visual--next circle {
  fill: #17201a;
  stroke: #bec9bd;
  stroke-width: 2;
}
.visual--next circle:nth-of-type(2) {
  fill: #c9f36a;
  stroke: #c9f36a;
}
.project-status {
  display: flex;
  align-items: center;
  gap: 0.55rem;
  margin: 0 0 0.7rem;
  color: var(--sc-ink-soft);
  font-size: 0.66rem;
}
.status-dot {
  width: 0.43rem;
  height: 0.43rem;
  display: inline-block;
  border-radius: 50%;
  background: #77847a;
  flex: none;
}
.status-dot--active {
  background: var(--sc-accent);
}
.status-dot--research {
  background: #9ea9a2;
}
.project-row h3 {
  margin: 0;
  font-size: clamp(1.45rem, 2.3vw, 2.1rem);
  line-height: 1.08;
  letter-spacing: -0.04em;
  font-weight: 560;
}
.project-row h3 a {
  text-decoration: none;
}
.project-row__text > p:not(.project-status) {
  max-width: 42rem;
  margin: 0.65rem 0 0.9rem;
  color: var(--sc-ink-soft);
  font-size: 0.94rem;
  line-height: 1.6;
}
.row-link {
  font-size: 0.8rem;
  color: var(--sc-ink);
}
.project-license {
  justify-self: end;
  color: var(--sc-ink-soft);
  font-size: 0.65rem;
}

.chapter--close {
  min-height: 30rem;
  display: flex;
  align-items: center;
  background: #111513;
  overflow: hidden;
}
.chapter__copy--close {
  position: relative;
  z-index: 1;
  width: min(100%, 64rem);
  margin-inline: auto;
}
.chapter__copy--close h2 {
  max-width: 13ch;
}
.chapter__copy--close .close-link {
  margin-top: 1.6rem;
  color: var(--sc-accent);
}
.close-mark {
  position: absolute;
  width: clamp(15rem, 37vw, 32rem);
  right: max(3rem, calc((100vw - 82rem) / 2));
  top: 50%;
  transform: translateY(-50%);
  opacity: 0.14;
}
.close-mark svg {
  width: 100%;
  fill: none;
  stroke: var(--sc-accent);
  stroke-width: 1;
}
.site-footer {
  width: min(100% - 2 * var(--sc-gutter), 86rem);
  min-height: 5rem;
  margin-inline: auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  color: var(--sc-ink-soft);
  font-size: 0.78rem;
  border-top: 1px solid var(--line);
}
.site-footer p {
  margin: 0;
}
.site-footer a {
  text-decoration: none;
}

/* Project routes */
.project-opening {
  width: min(100% - 2 * var(--sc-gutter), 86rem);
  min-height: min(42rem, calc(100svh - 5rem));
  margin-inline: auto;
  padding-block: clamp(3rem, 8vh, 6rem) 4rem;
  display: flex;
  flex-direction: column;
  justify-content: center;
}
.route-kicker {
  margin: 0 0 1rem;
  color: var(--sc-accent);
}
.project-opening h1 {
  max-width: 12ch;
  font-size: clamp(3.2rem, 8vw, 7.2rem);
}
.project-opening__summary {
  max-width: 47rem;
  margin: 1.5rem 0 2rem;
  color: var(--sc-ink-soft);
  font-size: clamp(1.05rem, 1.7vw, 1.3rem);
  line-height: 1.6;
}
.route-status {
  width: fit-content;
  margin-top: 1.2rem;
  padding: 0.35rem 0.55rem;
  border: 1px solid var(--line);
  color: var(--sc-ink-soft);
  font: 500 0.67rem/1.3 var(--mono);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.project-section {
  padding: clamp(4rem, 9vw, 8rem) var(--sc-gutter);
  border-top: 1px solid var(--line);
}
.project-section__inner {
  width: min(100%, 76rem);
  margin-inline: auto;
}
.project-section h2 {
  margin: 0 0 1.2rem;
  max-width: 16ch;
  font-size: clamp(2rem, 5vw, 4.5rem);
  line-height: 1;
  letter-spacing: -0.06em;
  font-weight: 560;
}
.project-section > .project-section__inner > p,
.project-section__inner > p {
  max-width: 55ch;
  color: var(--sc-ink-soft);
  line-height: 1.7;
}
.project-meta {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
  margin: 2.5rem 0 0;
  padding: 1.1rem 0 0;
  border-top: 1px solid var(--line);
}
.project-meta div {
  min-width: 0;
}
.project-meta dt {
  color: var(--sc-ink-soft);
  font-size: 0.63rem;
}
.project-meta dd {
  margin: 0.4rem 0 0;
  font-size: 0.9rem;
}
.project-end {
  padding: 3.5rem var(--sc-gutter);
  text-align: center;
  border-top: 1px solid var(--line);
}
.project-end p {
  margin: 0;
  color: var(--sc-ink-soft);
}
.project-end a {
  display: inline-block;
  margin-top: 0.8rem;
  color: var(--sc-accent);
}

/* Vesper: a small, playable rules sample. */
body[data-page="vesper"] {
  --sc-canvas: #151b17;
  --sc-surface: #202a23;
  --sc-ink: #eeeee4;
  --sc-ink-soft: #aab5aa;
  --sc-accent: #b7d28a;
  --sc-accent-ink: #182018;
}
.demo-wrap {
  display: grid;
  grid-template-columns: minmax(18rem, 1.25fr) minmax(15rem, 0.75fr);
  align-items: center;
  gap: clamp(2rem, 6vw, 5rem);
  margin-top: 3rem;
}
.board-demo {
  display: grid;
  grid-template-columns: repeat(8, 1fr);
  width: min(100%, 37rem);
  aspect-ratio: 1;
  border: 1px solid #768373;
  box-shadow:
    0 18px 36px rgba(0, 0, 0, 0.25),
    inset 0 1px rgba(255, 255, 255, 0.14);
  transform: perspective(900px) rotateX(6deg);
}
.board-shell {
  width: min(100%, 37rem);
}
.board-cell {
  position: relative;
  display: grid;
  place-items: center;
  padding: 0;
  border: 0;
  border-radius: 0;
  background: #d5d9c9;
  aspect-ratio: 1;
}
.board-cell--dark {
  background: #3b5145;
}
.board-cell--legal::after {
  content: "";
  position: absolute;
  width: 22%;
  aspect-ratio: 1;
  border-radius: 50%;
  background: var(--sc-accent);
  box-shadow: 0 0 0 5px rgba(183, 210, 138, 0.18);
}
.board-cell--selected {
  box-shadow: inset 0 0 0 3px var(--sc-accent);
  z-index: 1;
}
.board-piece {
  position: relative;
  z-index: 1;
  width: 73%;
  aspect-ratio: 1;
  border-radius: 50%;
  box-shadow:
    0 4px 0 rgba(0, 0, 0, 0.35),
    inset 0 2px 3px rgba(255, 255, 255, 0.42),
    inset 0 -4px 6px rgba(0, 0, 0, 0.2);
}
.board-piece--ivory {
  background: radial-gradient(circle at 35% 28%, #fffdf4, #ddd9c7 68%, #aaa793);
}
.board-piece--obsidian {
  background: radial-gradient(circle at 35% 25%, #8a968b, #27342d 68%, #18211b);
}
.board-piece--king::after {
  content: "";
  position: absolute;
  inset: 31%;
  border: 2px solid #a0ad94;
  border-radius: 50%;
}
.demo-panel {
  align-self: stretch;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding-block: 1.5rem;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
.demo-panel h3 {
  margin: 0 0 0.5rem;
  font-size: 1.2rem;
}
.demo-panel p {
  color: var(--sc-ink-soft);
  font-size: 0.9rem;
  line-height: 1.6;
}
.demo-turn {
  margin: 0.5rem 0 1rem;
  color: var(--sc-accent);
  font: 500 0.75rem var(--mono);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.demo-controls {
  display: flex;
  gap: 0.6rem;
  flex-wrap: wrap;
  margin-top: 0.7rem;
}
.demo-controls button,
.sim-controls button {
  min-height: 2.6rem;
  padding: 0.65rem 0.85rem;
  border: 1px solid var(--line);
  border-radius: 3px;
  background: transparent;
  color: var(--sc-ink);
  font-size: 0.8rem;
}
.demo-controls button:hover,
.sim-controls button:hover {
  border-color: var(--sc-accent);
}
.demo-caption {
  margin-top: 0.7rem;
  color: var(--sc-ink-soft);
  font-size: 0.72rem;
}

/* Riffle: a computed probability bench with explicitly illustrative data. */
body[data-page="riffle"] {
  --sc-canvas: #121922;
  --sc-surface: #1d2732;
  --sc-ink: #edf1ee;
  --sc-ink-soft: #a9b5bd;
  --sc-accent: #a2d5c2;
  --sc-accent-ink: #14221c;
}
.sim-workbench {
  display: grid;
  grid-template-columns: minmax(15rem, 0.75fr) minmax(0, 1.25fr);
  gap: clamp(1.5rem, 5vw, 4rem);
  margin-top: 3rem;
  padding: clamp(1.2rem, 3vw, 2rem);
  border: 1px solid var(--line);
  background: color-mix(in srgb, var(--sc-surface) 78%, transparent);
}
.sim-controls {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}
.sim-controls label {
  display: grid;
  gap: 0.45rem;
  color: var(--sc-ink-soft);
  font-size: 0.78rem;
}
.sim-controls select,
.sim-controls input {
  width: 100%;
  min-height: 2.7rem;
  padding: 0.55rem 0.65rem;
  border: 1px solid var(--line);
  border-radius: 2px;
  background: var(--sc-canvas);
  color: var(--sc-ink);
}
.sim-controls button {
  background: var(--sc-accent);
  color: var(--sc-accent-ink);
  border-color: var(--sc-accent);
  font-weight: 650;
}
.sim-output {
  min-width: 0;
}
.sample-label {
  margin: 0 0 1rem;
  color: var(--sc-ink-soft);
  font: 500 0.68rem var(--mono);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}
.sim-metrics {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
}
.sim-metric {
  padding: 1rem 0;
  border-top: 1px solid var(--line);
}
.sim-metric strong {
  display: block;
  font: 500 clamp(1.8rem, 4vw, 3rem)/1 var(--mono);
  letter-spacing: -0.07em;
}
.sim-metric span {
  display: block;
  margin-top: 0.5rem;
  color: var(--sc-ink-soft);
  font-size: 0.76rem;
}
.sim-chart {
  display: grid;
  gap: 0.5rem;
  margin-top: 1.4rem;
}
.sim-bar {
  display: grid;
  grid-template-columns: 4.8rem 1fr 3.4rem;
  align-items: center;
  gap: 0.6rem;
  color: var(--sc-ink-soft);
  font: 0.7rem var(--mono);
}
.sim-bar__track {
  height: 0.42rem;
  background: #35424a;
}
.sim-bar__fill {
  height: 100%;
  width: var(--bar);
  background: var(--sc-accent);
  transform-origin: left;
}

/* Nightglass: typographic poster and an original vector light study. */
body[data-page="nightglass"] {
  --sc-canvas: #141619;
  --sc-surface: #1f2328;
  --sc-ink: #f1f1ec;
  --sc-ink-soft: #aaafb6;
  --sc-accent: #b8d1ed;
  --sc-accent-ink: #15191c;
}
.nightglass-opening {
  min-height: min(45rem, calc(100svh - 5rem));
  position: relative;
  overflow: hidden;
}
.nightglass-opening h1 {
  font-size: clamp(4rem, 16vw, 14rem);
  letter-spacing: -0.105em;
  max-width: 9ch;
}
.nightglass-opening .project-opening__summary {
  position: relative;
  z-index: 1;
  max-width: 34rem;
}
.nightglass-sigil {
  position: absolute;
  width: min(43vw, 37rem);
  right: 2%;
  bottom: 6%;
  opacity: 0.56;
}
.nightglass-sigil svg {
  width: 100%;
  overflow: visible;
}
.nightglass-sigil .glass-ray {
  stroke: var(--sc-accent);
  stroke-width: 1.5;
  opacity: 0.55;
}
.nightglass-sigil .glass-sphere {
  fill: #333b43;
  stroke: #d7e3ec;
  stroke-width: 1.2;
}
.nightglass-sigil .glass-sphere--small {
  fill: #b8d1ed;
  stroke: none;
}
.nightglass-sigil .glass-orbit {
  fill: none;
  stroke: #879cae;
  stroke-width: 1;
  stroke-dasharray: 4 6;
}
.poster-claim {
  width: min(100%, 76rem);
  margin-inline: auto;
  padding: clamp(4rem, 11vw, 10rem) var(--sc-gutter);
}
.poster-claim p {
  max-width: 12ch;
  margin: 0;
  font-size: clamp(2.6rem, 7vw, 6.5rem);
  line-height: 0.98;
  letter-spacing: -0.075em;
}
.poster-claim p span {
  color: var(--sc-ink-soft);
}
.code-fragment {
  max-width: 52rem;
  margin: 4rem 0 0 auto;
  padding: 1rem 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  color: var(--sc-accent);
  font: clamp(0.78rem, 1.6vw, 1rem)/1.7 var(--mono);
  white-space: pre-wrap;
}

/* The SaaS route is a research gate, not a fabricated product. */
body[data-page="next-saas"] {
  --sc-canvas: #151b18;
  --sc-surface: #202923;
  --sc-ink: #edf0e7;
  --sc-ink-soft: #aab3aa;
  --sc-accent: #c9f36a;
  --sc-accent-ink: #172015;
}
.research-gates {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0;
  margin-top: 3rem;
  border-block: 1px solid var(--line);
}
.research-gate {
  min-height: 11rem;
  padding: 1.3rem clamp(0.7rem, 2vw, 1.5rem);
  border-right: 1px solid var(--line);
}
.research-gate:first-child {
  padding-left: 0;
}
.research-gate:last-child {
  border-right: 0;
}
.research-gate span {
  display: block;
  margin-bottom: 1.4rem;
  color: var(--sc-accent);
  font: 0.72rem var(--mono);
}
.research-gate h3 {
  margin: 0;
  font-size: clamp(1rem, 2vw, 1.25rem);
  font-weight: 550;
}
.research-gate p {
  max-width: 26ch;
  color: var(--sc-ink-soft);
  font-size: 0.85rem;
  line-height: 1.5;
}
.research-note {
  margin-top: 1.4rem;
  padding-left: 1rem;
  border-left: 2px solid var(--sc-accent);
  color: var(--sc-ink-soft);
  font-size: 0.85rem;
  line-height: 1.65;
}
.research-checklist {
  display: grid;
  gap: 0.75rem;
  max-width: 48rem;
  margin-top: 2rem;
}
.research-check {
  display: grid;
  grid-template-columns: 1.2rem minmax(0, 1fr);
  align-items: start;
  gap: 0.7rem;
  color: var(--sc-ink);
  font-size: 0.88rem;
  line-height: 1.5;
}
.research-check input {
  width: 1rem;
  height: 1rem;
  margin: 0.12rem 0 0;
  accent-color: var(--sc-accent);
}
.research-result {
  margin: 1.2rem 0 0;
  color: var(--sc-accent);
  font: 0.75rem/1.5 var(--mono);
}

@media (max-width: 760px) {
  .masthead {
    min-height: 4.2rem;
  }
  .top-nav {
    gap: 1rem;
    font-size: 0.76rem;
  }
  .opening {
    min-height: calc(100svh - 4.2rem);
    grid-template-columns: 1fr;
    padding-top: clamp(2.6rem, 7vh, 4.5rem);
    padding-bottom: 3rem;
  }
  .opening h1,
  .project-opening h1 {
    font-size: clamp(2.7rem, 13vw, 4.5rem);
  }
  .opening__summary {
    margin-block: 1.3rem 1.5rem;
    font-size: 1rem;
  }
  .folio {
    display: none;
  }
  .handoff {
    grid-template-columns: 1fr;
    gap: 0.8rem;
  }
  .agent-list__label {
    margin-bottom: 0.35rem;
  }
  .agent-logos {
    gap: clamp(0.45rem, 2.5vw, 0.9rem);
  }
  .agent-logos li {
    gap: 0.28rem;
    font-size: 0.72rem;
  }
  .agent-logos img {
    width: 0.95rem;
    height: 0.95rem;
  }
  .copy-button {
    width: fit-content;
    min-width: 10rem;
  }
  .opening__notes {
    margin-top: 0.8rem;
  }
  .chapter {
    padding-block: 4.5rem;
  }
  .chapter__inner {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
  .chapter h2 {
    max-width: 13ch;
    font-size: clamp(2.3rem, 10vw, 3.8rem);
  }
  .bench-figure {
    width: 100%;
  }
  .project-row {
    grid-template-columns: 6.5rem minmax(0, 1fr);
    column-gap: 1rem;
    padding-block: 1.25rem;
  }
  .project-row__visual {
    min-height: 7rem;
  }
  .project-row__visual svg {
    width: 7rem;
  }
  .project-row__text > p:not(.project-status) {
    font-size: 0.83rem;
  }
  .project-status {
    flex-wrap: wrap;
    font-size: 0.58rem;
  }
  .project-license {
    grid-column: 2;
    justify-self: start;
    margin: 0.7rem 0 0;
  }
  .chapter--close {
    min-height: 28rem;
  }
  .close-mark {
    right: -2rem;
    opacity: 0.1;
  }
  .site-footer {
    flex-wrap: wrap;
    padding-block: 1rem;
  }
  .project-opening {
    min-height: calc(100svh - 4.2rem);
    padding-block: 3rem;
  }
  .project-opening__summary {
    margin-block: 1.2rem 1.4rem;
  }
  .project-meta {
    grid-template-columns: 1fr 1fr;
  }
  .demo-wrap,
  .sim-workbench {
    grid-template-columns: 1fr;
  }
  .board-demo {
    width: min(100%, 33rem);
    margin-inline: auto;
  }
  .demo-panel {
    padding-block: 1rem;
  }
  .sim-workbench {
    padding: 1rem;
  }
  .sim-controls {
    display: grid;
    grid-template-columns: 1fr 1fr;
  }
  .sim-controls button {
    grid-column: 1 / -1;
  }
  .nightglass-opening {
    min-height: calc(100svh - 4.2rem);
  }
  .nightglass-opening h1 {
    font-size: clamp(4rem, 23vw, 8rem);
  }
  .nightglass-sigil {
    width: 70vw;
    right: -10%;
    bottom: 4%;
    opacity: 0.32;
  }
  .nightglass-opening .project-opening__summary {
    max-width: 28rem;
  }
  .research-gates {
    grid-template-columns: 1fr;
  }
  .research-gate,
  .research-gate:first-child {
    min-height: 0;
    padding: 1rem 0;
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }
  .research-gate:last-child {
    border-bottom: 0;
  }
  .research-gate span {
    margin-bottom: 0.5rem;
  }
  .research-gate p {
    margin-bottom: 0.2rem;
  }
}
@media (max-width: 360px) {
  :root {
    --sc-gutter: 1rem;
  }
  .wordmark {
    gap: 0.45rem;
    font-size: 0.9rem;
  }
  .top-nav {
    gap: 0.65rem;
    font-size: 0.7rem;
  }
  .agent-logos {
    gap: 0.46rem;
  }
  .agent-logos li {
    gap: 0.22rem;
    font-size: 0.68rem;
  }
  .agent-logos img {
    width: 0.85rem;
    height: 0.85rem;
  }
  .project-row {
    grid-template-columns: 5rem minmax(0, 1fr);
    gap: 0.75rem;
  }
  .project-row__visual svg {
    width: 5.4rem;
  }
}
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  .project-row__visual svg,
  .copy-button {
    transform: none !important;
  }
}