.isp-page {
  background: var(--paper);
}

.project-header {
  border-bottom: 1px solid var(--line);
}

.project-nav {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  min-height: 64px;
  font-size: 0.82rem;
}

.project-nav a {
  font-weight: 700;
  text-decoration: none;
}

.project-nav a:last-child {
  justify-self: end;
}

.project-nav span {
  color: var(--muted);
}

.project-intro {
  padding-block: 76px 84px;
}

.project-intro-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(320px, 0.9fr);
  gap: clamp(50px, 10vw, 120px);
  align-items: end;
}

.project-intro h1 {
  max-width: 700px;
  margin: 0;
  font-size: clamp(3rem, 7vw, 5.2rem);
  font-weight: 680;
  letter-spacing: -0.07em;
  line-height: 0.95;
}

.project-intro-layout > div:last-child > p {
  margin-top: 0;
  color: var(--muted);
  font-size: 1.05rem;
}

.project-facts {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 18px;
  margin: 30px 0 0;
  border-top: 1px solid var(--line);
  padding-top: 16px;
}

.project-facts dt {
  color: var(--green);
  font-size: 0.68rem;
  font-weight: 750;
  text-transform: uppercase;
}

.project-facts dd {
  margin: 3px 0 0;
  font-size: 0.78rem;
}

.demo-section {
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: var(--paper-2);
  padding-block: 84px;
}

.demo-heading {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 50px;
  align-items: end;
  margin-bottom: 36px;
}

.demo-heading h2,
.process-layout h2 {
  margin: 0;
  font-size: clamp(2.2rem, 5vw, 4rem);
  font-weight: 670;
  letter-spacing: -0.05em;
  line-height: 1.05;
}

.demo-heading > p {
  margin: 0;
  color: var(--muted);
}

.demo-card {
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--white);
}

.demo-toolbar {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  align-items: center;
  padding: 18px 20px;
}

.demo-status {
  display: flex;
  gap: 12px;
  align-items: center;
}

.status-dot {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: #b08b35;
}

.status-dot.is-ready {
  background: #4d8a62;
}

.status-dot.is-error {
  background: #b54c48;
}

.demo-status strong,
.demo-status small {
  display: block;
}

.demo-status strong {
  font-size: 0.88rem;
}

.demo-status small {
  margin-top: 2px;
  color: var(--muted);
  font-size: 0.72rem;
}

.demo-progress {
  display: block;
  width: 100%;
  height: 4px;
  border: 0;
  border-radius: 0;
  background: var(--paper-2);
}

.demo-progress::-webkit-progress-bar {
  background: var(--paper-2);
}

.demo-progress::-webkit-progress-value {
  background: var(--green);
}

.demo-progress::-moz-progress-bar {
  background: var(--green);
}

.canvas-wrap {
  position: relative;
  aspect-ratio: 1024 / 540;
  overflow: hidden;
  background: #202425;
}

.canvas-wrap canvas {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.canvas-empty {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  color: rgba(255, 255, 255, 0.68);
  font-size: 0.86rem;
}

.canvas-empty.is-hidden {
  display: none;
}

.stage-controls {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.stage-controls button {
  display: flex;
  gap: 8px;
  align-items: center;
  border: 0;
  border-right: 1px solid var(--line);
  background: transparent;
  padding: 14px;
  color: var(--muted);
  font-size: 0.76rem;
  font-weight: 700;
  cursor: pointer;
}

.stage-controls button:last-child {
  border-right: 0;
}

.stage-controls button:disabled {
  cursor: default;
  opacity: 0.38;
}

.stage-controls button:not(:disabled):hover,
.stage-controls button.is-active {
  background: var(--green-soft);
  color: var(--green);
}

.stage-controls span {
  color: inherit;
  font-size: 0.65rem;
}

.stage-note {
  padding: 18px 20px 20px;
}

.stage-note strong {
  font-size: 0.9rem;
}

.stage-note p {
  margin: 4px 0 0;
  color: var(--muted);
  font-size: 0.82rem;
}

.stage-technical {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
  margin: 16px 0 0;
  border-top: 1px solid var(--line);
  padding-top: 14px;
}

.stage-technical dt {
  color: var(--green);
  font-size: 0.65rem;
  font-weight: 750;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.stage-technical dd {
  margin: 3px 0 0;
  color: var(--ink);
  font-family: Consolas, "SFMono-Regular", monospace;
  font-size: 0.72rem;
}

.process-section {
  padding-block: 88px;
}

.process-layout {
  display: grid;
  grid-template-columns: 0.85fr 1.15fr;
  gap: clamp(50px, 10vw, 120px);
}

.process-layout ol {
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--line);
  list-style: none;
}

.process-layout li {
  display: grid;
  grid-template-columns: 150px 1fr;
  gap: 24px;
  border-bottom: 1px solid var(--line);
  padding-block: 18px;
}

.process-layout li span {
  color: var(--muted);
  font-size: 0.85rem;
}

.process-layout code {
  border-radius: 4px;
  background: var(--green-soft);
  padding: 2px 4px;
  color: var(--green);
  font-size: 0.78em;
}

.origin-section {
  border-top: 1px solid var(--line);
  background: var(--paper-2);
  padding-block: 88px;
}

.origin-layout {
  display: grid;
  grid-template-columns: 0.85fr 1.15fr;
  gap: clamp(50px, 10vw, 120px);
}

.origin-layout h2,
.why-card h2 {
  margin: 0;
  font-size: clamp(2rem, 4.5vw, 3.35rem);
  font-weight: 670;
  letter-spacing: -0.045em;
  line-height: 1.08;
}

.origin-copy p {
  margin-top: 0;
  color: var(--muted);
}

.origin-copy .text-link {
  display: inline-block;
  margin-top: 10px;
}

.why-section {
  border-top: 1px solid var(--line);
  padding-block: 88px;
}

.why-layout {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 20px;
}

.why-card {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--white);
  padding: clamp(28px, 5vw, 52px);
}

.why-card > p:not(.kicker) {
  color: var(--muted);
}

.why-card ol {
  margin: 28px 0 0;
  padding: 0;
  list-style: none;
}

.why-card li {
  display: grid;
  grid-template-columns: 34px 1fr;
  gap: 14px;
  border-top: 1px solid var(--line);
  padding-block: 14px;
}

.why-card li span {
  color: var(--green);
  font-size: 0.7rem;
  font-weight: 750;
}

.why-card li p {
  margin: 0;
  color: var(--muted);
  font-size: 0.84rem;
}

.why-card-green {
  border-color: var(--green);
  background: var(--green);
  color: var(--white);
}

.why-card-green .kicker {
  color: #d8eadf;
}

.why-card-green > p:not(.kicker) {
  color: rgba(255, 255, 255, 0.76);
}

.notes-section {
  border-top: 1px solid var(--line);
  padding-block: 64px;
}

.notes-heading {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  align-items: baseline;
  margin-bottom: 24px;
}

.notes-heading .kicker {
  margin: 0;
}

.notes-heading h2 {
  margin: 0;
  font-size: clamp(1.8rem, 3.5vw, 2.6rem);
  font-weight: 670;
  letter-spacing: -0.04em;
}

.notes-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 28px;
}

.notes-grid article {
  border-top: 2px solid var(--green);
  padding-top: 18px;
}

.notes-grid h3 {
  margin: 0;
  font-size: 1rem;
}

.notes-grid p {
  margin: 10px 0 0;
  color: var(--muted);
  font-size: 0.86rem;
}

.notes-grid .text-link {
  display: inline-block;
  margin-top: 14px;
}

@media (max-width: 820px) {
  .project-intro-layout,
  .demo-heading,
  .process-layout,
  .origin-layout,
  .why-layout,
  .notes-grid {
    grid-template-columns: 1fr;
  }

  .stage-controls {
    grid-template-columns: repeat(3, 1fr);
  }

  .stage-controls button:nth-child(3) {
    border-right: 0;
  }

  .stage-controls button:nth-child(-n + 3) {
    border-bottom: 1px solid var(--line);
  }
}

@media (max-width: 620px) {
  .project-nav {
    grid-template-columns: 1fr auto;
  }

  .project-nav span {
    display: none;
  }

  .project-intro {
    padding-block: 58px 64px;
  }

  .project-intro h1 {
    font-size: clamp(3rem, 14vw, 4rem);
  }

  .demo-section,
  .process-section,
  .origin-section,
  .why-section,
  .notes-section {
    padding-block: 68px;
  }

  .notes-heading {
    align-items: flex-start;
    flex-direction: column;
    gap: 4px;
  }

  .demo-toolbar {
    align-items: flex-start;
    flex-direction: column;
  }

  .demo-toolbar .button {
    width: 100%;
  }

  .stage-controls {
    grid-template-columns: repeat(2, 1fr);
  }

  .stage-controls button,
  .stage-controls button:nth-child(3) {
    border-right: 1px solid var(--line);
    border-bottom: 1px solid var(--line);
  }

  .stage-controls button:nth-child(even) {
    border-right: 0;
  }

  .process-layout li {
    grid-template-columns: 1fr;
    gap: 5px;
  }

  .stage-technical {
    grid-template-columns: 1fr;
  }
}