.lab-shell { max-width: 1120px; }
.lab-header { margin-bottom: clamp(30px, 6vh, 68px); }
.lab-intro { max-width: 760px; margin-bottom: 24px; }
.lab-intro h1 { text-align: left; }
.tool-tabs {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin: 0 0 18px;
  padding-bottom: 18px;
  border-bottom: 1px solid var(--line);
}
.tool-tab, .action-button {
  min-height: 44px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--ink);
  background: var(--card-bg);
  cursor: pointer;
  font: inherit;
  font-size: 14px;
  padding: 9px 14px;
  transition: transform .18s ease, background .18s ease, border-color .18s ease;
}
.tool-tab:hover, .tool-tab:focus-visible, .action-button:hover, .action-button:focus-visible {
  transform: translateY(-1px);
  background: var(--card-bg-hover);
  border-color: var(--toggle-border-hover);
  outline: none;
}
.tool-tab.is-active, .action-button:not(.secondary) {
  background: var(--ink);
  color: var(--paper);
  border-color: transparent;
}
.tool-panel {
  display: none;
  grid-template-columns: minmax(280px, 390px) minmax(0, 1fr);
  gap: clamp(18px, 4vw, 42px);
  align-items: start;
  padding: clamp(16px, 3vw, 26px);
  border: 1px solid var(--line);
  border-radius: clamp(22px, 4vw, 36px);
  background: var(--frame-bg);
  box-shadow: var(--shadow);
}
.tool-panel.is-active { display: grid; }
.tool-copy h2 { margin: 4px 0 10px; font-size: clamp(28px, 4vw, 46px); letter-spacing: -.06em; line-height: .98; }
.tool-copy p { color: var(--caption); line-height: 1.55; }
.controls, .button-row { display: flex; flex-wrap: wrap; gap: 10px; }
.compact-controls { margin: 18px 0 14px; }
label { color: var(--muted); font-size: 13px; display: grid; gap: 7px; }
input, select, textarea {
  min-height: 44px;
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: var(--card-bg);
  color: var(--ink);
  font: inherit;
  padding: 9px 12px;
}
.compact-controls label { min-width: 142px; flex: 1; }
.full-field { margin: 18px 0 12px; }
.zine-fields { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 8px; margin-bottom: 14px; }
.zine-fields textarea { min-height: 72px; resize: vertical; font-size: 13px; }
.paper-output, .trade-card {
  background: rgba(255,255,255,.58);
  color: #102033;
  border: 1px solid rgba(16, 32, 51, 0.16);
  border-radius: 24px;
  overflow: hidden;
}
:root[data-theme="dark"] .paper-output, :root[data-theme="dark"] .trade-card {
  background: rgba(255, 252, 245, .90);
  color: #102033;
}
.trade-card {
  width: min(100%, 420px);
  justify-self: center;
  padding: 18px;
  box-shadow: 0 24px 60px rgba(16, 32, 51, .18);
}
.card-top { display: flex; justify-content: space-between; font-size: 12px; letter-spacing: .12em; text-transform: uppercase; color: #667085; }
#avatar-canvas {
  display: block;
  width: min(100%, 280px);
  height: auto;
  margin: 16px auto;
  image-rendering: pixelated;
  border: 1px solid rgba(16, 32, 51, .14);
  border-radius: 18px;
  background: #f7f1e6;
}
.trade-card h3 { margin: 0; font-size: clamp(28px, 4vw, 44px); letter-spacing: -.06em; line-height: .95; }
.trade-card p { margin: 6px 0 0; color: #354154; }
.stats { display: grid; gap: 8px; margin: 18px 0; }
.stats div { display: grid; grid-template-columns: 1fr auto; gap: 12px; border-bottom: 1px solid rgba(16, 32, 51, .12); padding-bottom: 7px; }
.stats dt { color: #667085; }
.stats dd { margin: 0; font-weight: 750; }
.card-quote { font-style: italic; }
.paper-output svg { width: 100%; height: auto; display: block; }
.zine-preview { border-radius: 18px; }
.map-output, .room-output { min-height: 420px; display: grid; place-items: center; padding: 8px; }
@media (max-width: 820px) {
  .tool-panel { grid-template-columns: 1fr; }
  .trade-card { width: 100%; }
}
@media (max-width: 520px) {
  .zine-fields { grid-template-columns: 1fr; }
  .tool-tabs { display: grid; grid-template-columns: repeat(2, 1fr); }
}
@media print {
  body * { visibility: hidden; }
  #zine-output, #zine-output * { visibility: visible; }
  #zine-output { position: fixed; inset: 0; border: 0; border-radius: 0; background: white; }
  #zine-output svg { width: 100vw; height: auto; }
}