:root {
  --lab-bg: #f4efe6;
  --lab-panel: rgba(255, 252, 247, 0.88);
  --lab-panel-strong: rgba(252, 247, 240, 0.96);
  --lab-ink: #171411;
  --lab-muted: #655c54;
  --lab-line: rgba(23, 20, 17, 0.12);
  --lab-line-strong: rgba(23, 20, 17, 0.18);
  --lab-acid: #d7ff00;
  --lab-green: #38bf7a;
  --lab-shadow: rgba(23, 20, 17, 0.12);
  --lab-error: #9e3e2d;
  --lab-radius-xl: 32px;
  --lab-radius-lg: 24px;
  --lab-radius-md: 18px;
  --lab-radius-sm: 999px;
  --lab-shell: 1280px;
  --lab-font-sans: "Inter", system-ui, sans-serif;
  --lab-font-mono: "IBM Plex Mono", ui-monospace, monospace;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  min-width: 320px;
}

body {
  background:
    radial-gradient(circle at top left, rgba(56, 191, 122, 0.12), transparent 28%),
    radial-gradient(circle at top right, rgba(215, 255, 0, 0.14), transparent 24%),
    linear-gradient(180deg, #fbf8f2, var(--lab-bg));
  color: var(--lab-ink);
  font-family: var(--lab-font-sans);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

a {
  color: inherit;
  text-decoration: none;
}

button,
input,
textarea,
select {
  font: inherit;
}

button {
  cursor: pointer;
}

h1,
h2,
h3,
p,
ul,
dl,
dd {
  margin: 0;
}

ul {
  padding: 0;
  list-style: none;
}

.lab-shell {
  width: min(100%, var(--lab-shell));
  margin: 0 auto;
  padding: clamp(24px, 4vw, 40px);
}

.lab-header {
  display: grid;
  gap: 1.25rem;
  margin-bottom: clamp(24px, 5vw, 40px);
}

.lab-header__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.lab-backlink {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  width: fit-content;
  padding: 0.55rem 0.9rem;
  border: 1px solid var(--lab-line);
  border-radius: var(--lab-radius-sm);
  background: rgba(255, 255, 255, 0.6);
  font-family: var(--lab-font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  transition: background-color 180ms ease, transform 180ms ease, border-color 180ms ease;
}

.lab-backlink:hover,
.lab-backlink:focus-visible {
  background: rgba(255, 255, 255, 0.88);
  border-color: var(--lab-line-strong);
  transform: translateY(-1px);
}

.lab-header__copy {
  display: grid;
  gap: 0.75rem;
  max-width: 68rem;
}

.lab-header__copy h1 {
  font-size: clamp(2.8rem, 7vw, 5.4rem);
  line-height: 0.92;
  letter-spacing: -0.07em;
}

.lab-header__copy p:last-child {
  max-width: 54rem;
  font-size: clamp(1rem, 1.35vw, 1.08rem);
  color: var(--lab-muted);
}

.lab-eyebrow,
.lab-card__eyebrow {
  display: inline-flex;
  align-items: center;
  width: fit-content;
  padding: 0.45rem 0.72rem;
  border: 1px solid var(--lab-line);
  border-radius: var(--lab-radius-sm);
  background: rgba(255, 255, 255, 0.72);
  font-family: var(--lab-font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.lab-layout {
  display: grid;
  grid-template-columns: minmax(280px, 360px) minmax(0, 1fr);
  gap: clamp(18px, 2.8vw, 28px);
  align-items: start;
}

.lab-panel,
.lab-stage-card {
  display: grid;
  gap: 1rem;
}

.lab-card,
.lab-stage-card {
  padding: clamp(18px, 2.4vw, 24px);
  border: 1px solid rgba(255, 255, 255, 0.4);
  border-radius: var(--lab-radius-xl);
  background: var(--lab-panel);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  box-shadow:
    0 24px 56px -32px var(--lab-shadow),
    0 10px 18px -14px rgba(255, 255, 255, 0.64) inset;
}

.lab-card {
  display: grid;
  gap: 0.95rem;
}

.lab-card h2,
.lab-stage-toolbar h2 {
  font-size: clamp(1.35rem, 2vw, 1.7rem);
  line-height: 1.06;
  letter-spacing: -0.04em;
}

.lab-card__body {
  color: var(--lab-muted);
}

.lab-asset-switcher {
  display: grid;
  gap: 0.7rem;
}

.lab-asset-button {
  display: grid;
  gap: 0.4rem;
  width: 100%;
  padding: 1rem 1rem 1rem 1.1rem;
  border: 1px solid var(--lab-line);
  border-radius: var(--lab-radius-lg);
  background: rgba(255, 255, 255, 0.58);
  text-align: left;
  transition:
    transform 180ms ease,
    border-color 180ms ease,
    background-color 180ms ease,
    box-shadow 180ms ease;
}

.lab-asset-button:hover,
.lab-asset-button:focus-visible {
  transform: translateY(-1px);
  border-color: var(--lab-line-strong);
  background: rgba(255, 255, 255, 0.88);
}

.lab-asset-button.is-active {
  border-color: rgba(23, 20, 17, 0.24);
  background:
    linear-gradient(135deg, rgba(215, 255, 0, 0.26), rgba(255, 255, 255, 0.94)),
    rgba(255, 255, 255, 0.96);
  box-shadow: 0 18px 30px -26px rgba(215, 255, 0, 0.72);
}

.lab-asset-button__label {
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: -0.03em;
}

.lab-asset-button__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem 0.7rem;
  color: var(--lab-muted);
  font-family: var(--lab-font-mono);
  font-size: 0.74rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.lab-status {
  display: grid;
  gap: 0.6rem;
}

.lab-status__pill {
  display: inline-flex;
  align-items: center;
  width: fit-content;
  padding: 0.45rem 0.72rem;
  border-radius: var(--lab-radius-sm);
  background: rgba(23, 20, 17, 0.08);
  font-family: var(--lab-font-mono);
  font-size: 0.74rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.lab-status__pill.is-ready {
  background: rgba(56, 191, 122, 0.12);
  color: #24583f;
}

.lab-status__pill.is-loading {
  background: rgba(215, 255, 0, 0.24);
}

.lab-status__pill.is-error {
  background: rgba(158, 62, 45, 0.12);
  color: var(--lab-error);
}

.lab-detail-grid {
  display: grid;
  gap: 0.75rem;
}

.lab-detail-row {
  display: grid;
  gap: 0.28rem;
  padding-bottom: 0.7rem;
  border-bottom: 1px solid var(--lab-line);
}

.lab-detail-row:last-child {
  padding-bottom: 0;
  border-bottom: 0;
}

.lab-detail-row dt {
  font-family: var(--lab-font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--lab-muted);
}

.lab-detail-row dd {
  color: var(--lab-ink);
}

.lab-detail-list-wrap {
  display: grid;
  gap: 0.55rem;
}

.lab-detail-list-wrap h3 {
  font-size: 0.95rem;
  letter-spacing: -0.02em;
}

.lab-detail-list {
  display: grid;
  gap: 0.5rem;
}

.lab-detail-list li {
  position: relative;
  padding-left: 1.1rem;
  color: var(--lab-muted);
}

.lab-detail-list li::before {
  content: "";
  position: absolute;
  top: 0.62rem;
  left: 0;
  width: 0.38rem;
  height: 0.38rem;
  border-radius: 50%;
  background: rgba(23, 20, 17, 0.24);
}

.lab-stage-card {
  background: var(--lab-panel-strong);
}

.lab-stage-toolbar {
  display: flex;
  align-items: start;
  justify-content: space-between;
  gap: 1rem;
}

.lab-stage-toolbar__meta {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 0.55rem;
  color: var(--lab-muted);
  font-family: var(--lab-font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.lab-stage {
  position: relative;
  min-height: clamp(420px, 70svh, 760px);
  overflow: hidden;
  border: 1px solid var(--lab-line);
  border-radius: calc(var(--lab-radius-xl) - 6px);
  background:
    radial-gradient(circle at top center, rgba(255, 255, 255, 0.8), transparent 42%),
    linear-gradient(180deg, #efe9dd 0%, #e6dfd2 100%);
}

.lab-stage::before {
  content: "";
  position: absolute;
  inset: auto 0 0;
  height: 32%;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0), rgba(23, 20, 17, 0.06)),
    linear-gradient(90deg, rgba(23, 20, 17, 0.05), transparent 18%, transparent 82%, rgba(23, 20, 17, 0.05));
  pointer-events: none;
}

.lab-stage__canvas {
  display: block;
  width: 100%;
  height: 100%;
  touch-action: none;
}

.lab-stage__overlay {
  position: absolute;
  inset: 0;
  display: grid;
  align-content: start;
  gap: 0.55rem;
  padding: 1.15rem;
  pointer-events: none;
  opacity: 0;
  transition: opacity 180ms ease;
}

.lab-stage__overlay.is-visible {
  opacity: 1;
}

.lab-stage__overlay.is-error .lab-stage__overlay-title {
  color: var(--lab-error);
}

.lab-stage__overlay-title {
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: -0.03em;
}

.lab-stage__overlay-detail {
  max-width: 34rem;
  color: var(--lab-muted);
}

.lab-stage__progress {
  width: min(240px, 42vw);
  height: 6px;
  overflow: hidden;
  border-radius: var(--lab-radius-sm);
  background: rgba(23, 20, 17, 0.12);
}

.lab-stage__progress-fill {
  display: block;
  width: 18%;
  height: 100%;
  border-radius: inherit;
  background: linear-gradient(90deg, var(--lab-green), var(--lab-acid));
  transform-origin: left center;
  transition: transform 180ms ease, width 180ms ease;
}

.lab-stage__hint {
  position: absolute;
  right: 1rem;
  bottom: 1rem;
  padding: 0.45rem 0.72rem;
  border: 1px solid rgba(255, 255, 255, 0.46);
  border-radius: var(--lab-radius-sm);
  background: rgba(255, 255, 255, 0.6);
  color: var(--lab-muted);
  font-family: var(--lab-font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  pointer-events: none;
}

@media (max-width: 960px) {
  .lab-layout {
    grid-template-columns: 1fr;
  }

  .lab-stage-toolbar {
    flex-direction: column;
  }

  .lab-stage-toolbar__meta {
    justify-content: flex-start;
  }
}

@media (max-width: 640px) {
  .lab-shell {
    padding: 18px;
  }

  .lab-header__copy h1 {
    font-size: clamp(2.3rem, 12vw, 3.5rem);
  }

  .lab-stage {
    min-height: 360px;
  }

  .lab-stage__hint {
    left: 1rem;
    right: 1rem;
    bottom: 0.9rem;
    text-align: center;
  }
}