#app {
  min-height: 100vh;
}

.layer {
  width: 100%;
}

.layer--depth {
  position: fixed;
  inset: 0;
  pointer-events: none;
}

.layer--depth {
  z-index: 0;
}

.layer--depth.zone {
  position: relative;
  padding: clamp(var(--space-6), 7vw, var(--space-8)) var(--gutter);
}

.layer--content {
  position: relative;
  z-index: 2;
}


.signal-field {
  position: absolute;
  inset: 0;
  z-index: 0;
  opacity: calc(0.55 * var(--scrollContrast));
  background-image:
    linear-gradient(
      115deg,
      color-mix(in srgb, var(--text-primary) 6%, transparent) 0px,
      color-mix(in srgb, var(--text-primary) 6%, transparent) 1px,
      transparent 1px,
      transparent 18px
    ),
    linear-gradient(
      115deg,
      color-mix(in srgb, var(--text-primary) 3.5%, transparent) 0px,
      color-mix(in srgb, var(--text-primary) 3.5%, transparent) 1px,
      transparent 1px,
      transparent 28px
    );
  background-size: 100% 100%;
  transform: translate3d(0, 0, 0);
}

/* LOCKED – do not enhance robot visuals without explicit approval. */

.canopy-robot {
  position: relative;
  width: min(520px, 42vw);
  max-width: 100%;
  height: auto;
  pointer-events: auto;
  z-index: 0;
  opacity: 1;
  animation: none;
  contain: paint;
}

.canopy-robot::before {
  content: "";
  position: absolute;
  inset: -18% -14% -26% -14%;
  z-index: 0;
  background: radial-gradient(
    closest-side at 50% 58%,
    color-mix(in srgb, var(--bg-primary) 38%, transparent),
    transparent 72%
  );
  pointer-events: none;
}

.canopy-robot__svg {
  display: block;
  width: 100%;
  height: auto;
  position: relative;
  z-index: 1;
  shape-rendering: geometricPrecision;
  pointer-events: none;
}


.canopy-robot__svg .robot-shell,
.canopy-robot__svg .robot-ridge,
.canopy-robot__svg .robot-detail,
.canopy-robot__svg .robot-brow path,
.canopy-robot__svg .robot-mouth,
.canopy-robot__svg .robot-eye__lens,
.canopy-robot__svg .robot-eye__inner {
  vector-effect: non-scaling-stroke;
}

.canopy-robot__svg .robot-shell {
  fill: var(--robot-shell);
  stroke: var(--robot-ui-secondary);
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.canopy-robot__svg .robot-ridge,
.canopy-robot__svg .robot-detail,
.canopy-robot__svg .robot-brow path,
.canopy-robot__svg .robot-mouth {
  fill: none;
  stroke: var(--robot-ui-secondary);
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.canopy-robot__svg .robot-ridge {
  stroke: var(--robot-ui-secondary);
}

.canopy-robot__svg .robot-eye__socket {
  fill: var(--robot-socket);
}

.canopy-robot__svg .robot-eye__lens {
  fill: none;
  stroke: var(--robot-stroke-soft);
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.canopy-robot__svg .robot-eye__inner {
  fill: var(--robot-eye-sclera);
}

.canopy-robot__svg .robot-eye__iris {
  fill: url(#robotIrisFill);
  stroke: var(--robot-eye-iris-ring);
  stroke-width: 1;
}

.canopy-robot__svg .robot-eye__pupilDot {
  fill: var(--robot-eye-pupil);
}

.canopy-robot__svg .robot-eye__highlight {
  fill: var(--robot-eye-highlight);
}

.canopy-robot__svg .robot-torso__shell {
  fill: var(--robot-shell);
  stroke: var(--robot-ui-secondary);
  stroke-width: 2;
  opacity: 0.22;
}

/* LOCKED – robot facial expression system. Do not modify without approval. */

.canopy-robot__svg .robot-brow,
.canopy-robot__svg .robot-mouth {
  transform-box: fill-box;
  transform-origin: center;
}

.canopy-robot__svg .robot-brow path {
  stroke: var(--robot-ui-primary);
}

.canopy-robot__svg .robot-mouth {
  stroke: var(--robot-ui-primary);
}

.depth-plane {
  position: absolute;
  inset: 0;
  z-index: 1;
  opacity: calc(var(--depthOpacity) * var(--scrollContrast));
  background: var(--depthTint);
  background-image:
    radial-gradient(
      900px 540px at 20% 10%,
      color-mix(in srgb, var(--text-primary) 6%, transparent),
      transparent 60%
    ),
    radial-gradient(
      760px 540px at 80% 0%,
      color-mix(in srgb, var(--text-primary) 3.5%, transparent),
      transparent 55%
    );
}

.zone {
  padding: clamp(var(--space-6), 7vw, var(--space-8)) var(--gutter);
  position: relative;
}

.zone::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  opacity: 0.2;
  background:
    radial-gradient(1200px 840px at 50% 10%, color-mix(in srgb, var(--text-primary) 6%, transparent), transparent 62%),
    radial-gradient(900px 620px at 50% 90%, color-mix(in srgb, var(--bg-primary) 42%, transparent), transparent 68%);
}

.zone[data-zone="exit"]::before {
  opacity: 0.2;
}

.zone__header,
.zone__body {
  width: 100%;
  position: relative;
  z-index: 1;
  transform: none;
}

.zone__inner {
  max-width: var(--page-max);
  margin: 0 auto;
  position: relative;
  z-index: 1;
  min-width: 0;
}

.zone__header {
  opacity: 1;
  translate: 0 0;
  transition: none;
}

.zone__header--canopy {
  max-width: none;
}

.zone__header--canopy .canopy-hero {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(0, 0.8fr);
  align-items: center;
  gap: clamp(var(--space-3), 4vw, var(--space-8));
}

.zone__header--canopy .canopy-hero__content {
  min-width: 0;
}

.zone__header--canopy .canopy-hero__art {
  display: flex;
  justify-content: center;
  align-items: center;
}

.canopy-robot__svg {
  pointer-events: none;
}

@media (max-width: 860px) {
  .zone__header--canopy .canopy-hero {
    grid-template-columns: 1fr;
  }

  .zone__header--canopy .canopy-hero__art {
    order: 2;
    justify-content: flex-start;
  }
}

.zone.is-revealed .zone__header {
  opacity: 1;
  translate: 0 0;
}

.zone__label {
  font-family: var(--font-mono);
  font-size: var(--fs-0);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.zone__title {
  margin: var(--space-2) 0 var(--space-1);
  font-weight: 600;
  letter-spacing: -0.015em;
  color: var(--text-primary);
}

.zone__header h1.zone__title {
  font-size: var(--fs-6);
  line-height: var(--lh-tight);
  letter-spacing: -0.02em;
}

.zone__header h2.zone__title {
  font-size: var(--fs-5);
  line-height: var(--lh-tight);
  letter-spacing: -0.015em;
}

.zone__lead {
  margin: 0;
  color: var(--text-secondary);
  font-size: var(--fs-2);
  max-width: 70ch;
  line-height: 1.62;
}

.surface .zone__label + .zone__lead {
  margin-top: var(--space-1);
}

.zone__lead + .zone__lead {
  margin-top: var(--space-1);
}

.zone[data-zone="canopy"] .zone__lead {
  font-size: var(--fs-3);
}

.surface {
  margin-top: var(--space-4);
  padding: var(--space-3);
  border-radius: var(--radius-lg);
  background: var(--c-surface);
  opacity: 1;
  border: 1px solid var(--c-border);
  box-shadow: var(--shadow-lg);
}

.project {
  margin-top: var(--space-3);
  position: relative;
  border-radius: var(--radius-lg);
  background: var(--c-surface);
  overflow: clip;
  border: 1px solid var(--c-border);
  box-shadow: var(--shadow-lg);
}

.project[data-open] {
  border-color: color-mix(in srgb, var(--text-primary) 12%, transparent);
}

.project__toggle {
  width: 100%;
  min-height: var(--tap-target);
  padding: var(--space-2) var(--space-3);
  background: transparent;
  border: 0;
  text-align: left;
  display: grid;
  gap: var(--space-1);
  cursor: pointer;
}

.project__toggle:focus-visible {
  background: color-mix(in srgb, var(--text-primary) 2%, transparent);
}

.project__toggle {
  line-height: 1.5;
}

@media (hover: hover) and (pointer: fine) {
  .project__toggle {
    cursor: pointer;
  }

  .project__toggle:hover {
    background: color-mix(in srgb, var(--text-primary) 2%, transparent);
  }

  a[href] {
    cursor: pointer;
  }
}

.project__label {
  font-family: var(--font-mono);
  font-size: var(--fs-0);
  letter-spacing: 0.02em;
  color: var(--text-muted);
}

.project__label--tags {
  color: var(--text-muted);
}

.project__meta {
  color: var(--text-muted);
  font-size: var(--fs-1);
}

.project__micro {
  margin: var(--space-2) 0 0;
  font-family: var(--font-mono);
  font-size: var(--fs-0);
  letter-spacing: 0.02em;
  line-height: 1.55;
  color: var(--text-secondary);
  white-space: pre;
}

.project__constraint {
  margin-top: var(--space-2);
  padding: var(--space-2);
  border-radius: var(--radius-md);
  background: color-mix(in srgb, var(--text-primary) 3.5%, transparent);
}

/* LOCKED – robot theme toggle */

.canopy-robot__svg [data-robot-theme-toggle] {
  pointer-events: all;
  cursor: pointer;
}

.canopy-robot__svg [data-robot-theme-toggle] * {
  pointer-events: none;
}

.canopy-robot__svg [data-robot-theme-toggle]:focus {
  outline: none;
}

.canopy-robot__svg [data-robot-theme-toggle]:focus-visible {
  outline: none;
}

/* LOCKED – robot theme toggle visibility */

.canopy-robot__svg .robot-theme-toggle__hit {
  fill: transparent;
  pointer-events: all;
}

.canopy-robot__svg .robot-theme-toggle__ring {
  fill: none;
  stroke: var(--robot-ui-secondary);
  stroke-width: 2;
  opacity: 1;
}

.canopy-robot__svg .robot-theme-toggle__icon {
  fill: none;
  stroke: var(--robot-ui-primary);
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.canopy-robot__svg [data-robot-theme-toggle]:hover .robot-theme-toggle__ring,
.canopy-robot__svg [data-robot-theme-toggle]:focus-visible .robot-theme-toggle__ring {
  stroke: var(--accent);
}

.canopy-robot__svg [data-robot-theme-toggle]:hover .robot-theme-toggle__icon,
.canopy-robot__svg [data-robot-theme-toggle]:focus-visible .robot-theme-toggle__icon {
  stroke: var(--accent);
}

.canopy-robot__svg [data-robot-theme-toggle][aria-pressed="true"] .robot-theme-toggle__ring,
.canopy-robot__svg [data-robot-theme-toggle][aria-pressed="true"] .robot-theme-toggle__icon {
  stroke: var(--accent);
}

.canopy-robot__svg .robot-theme-toggle__focus {
  fill: none;
  stroke: var(--accent);
  stroke-width: 2;
  opacity: 0;
}

.canopy-robot__svg [data-robot-theme-toggle]:focus-visible .robot-theme-toggle__focus {
  opacity: 1;
}

.project__constraint .mono {
  margin: 0;
  color: var(--text-secondary);
}

.project__reviewed {
  margin-top: var(--space-2);
  font-family: var(--font-mono);
  font-size: var(--fs-0);
  letter-spacing: 0.02em;
  color: var(--text-muted);
}

@media (hover: hover) and (pointer: fine) {
  .project__title {
    background-image: linear-gradient(currentColor, currentColor);
    background-repeat: no-repeat;
    background-position: 0 calc(100% - 1px);
    background-size: 0% 1px;
    transition: background-size var(--dur-1) var(--ease-standard);
  }

  .project__toggle:hover .project__title,
  .project__toggle:focus-visible .project__title {
    background-size: 100% 1px;
  }

  .project[data-open] .project__title {
    background-size: 100% 1px;
  }

  .project__toggle:hover .project__meta,
  .project__toggle:focus-visible .project__meta {
    color: var(--text-muted);
  }
}

.systems-list {
  margin: 0;
  padding-left: var(--space-3);
}

.systems-list li {
  margin: var(--space-1) 0;
  color: var(--text-secondary);
  line-height: 1.6;
}

.schematic {
  margin: var(--space-2) 0 0;
  font-family: var(--font-mono);
  font-size: var(--fs-0);
  letter-spacing: 0.02em;
  line-height: 1.55;
  color: var(--text-secondary);
  white-space: pre;
}

.mono {
  font-family: var(--font-mono);
  font-size: var(--fs-0);
  letter-spacing: 0.02em;
  line-height: 1.55;
  color: var(--text-secondary);
  white-space: pre;
}

.footnote {
  margin-top: var(--space-3);
  font-family: var(--font-mono);
  font-size: var(--fs-0);
  letter-spacing: var(--typeTracking);
  color: var(--text-muted);
}

.site-footer {
  margin-top: var(--space-6);
  padding-right: var(--gutter);
  padding-bottom: var(--space-4);
  text-align: right;
  font-family: var(--font-mono);
  font-size: var(--fs-0);
  letter-spacing: 0.02em;
  color: var(--text-muted);
}

@media (prefers-reduced-motion: reduce) {
  .zone__header {
    transition: none;
  }

  .project__title,
  .project__meta {
    transition: none;
  }

  .canopy-robot {
    animation: none;
  }

  .canopy-robot__svg .robot-brow--l,
  .canopy-robot__svg .robot-brow--r,
  .canopy-robot__svg .robot-mouth {
    animation: none !important;
    transform: none !important;
  }

}

@media print {
  html,
  body {
    background: #fff !important;
    color: #000 !important;
  }

  .zone__header--canopy .canopy-hero__art {
    display: none !important;
  }

  .layer--depth {
    display: none !important;
  }

  .zone {
    padding: 24px 0 !important;
  }

  .zone::before {
    display: none !important;
  }

  .surface,
  .project {
    box-shadow: none !important;
    border: 1px solid rgba(0, 0, 0, 0.12) !important;
    background: transparent !important;
    opacity: 1 !important;
  }

  .project__toggle {
    cursor: default !important;
  }

  .project__panel,
  .project__panel[hidden] {
    display: block !important;
    height: auto !important;
    overflow: visible !important;
  }

  .project__meta,
  .project__label,
  .project__micro,
  .project__reviewed,
  .systems-list li,
  .mono,
  .schematic,
  .footnote,
  .zone__lead,
  .zone__label {
    color: rgba(0, 0, 0, 0.72) !important;
  }

  a {
    text-decoration: underline !important;
  }

  a[href^="http"]::after {
    content: " (" attr(href) ")";
  }
}

.project__panel {
  padding: 0 var(--space-3) var(--space-3);
}

.project__panel p {
  line-height: var(--lh-long);
}