/* Openbench app shell: shared typography and spacing, individual palettes. */
:root {
  --f-display: 'Instrument Serif', 'Iowan Old Style', Georgia, serif;
  --f-body: 'Figtree', 'Segoe UI', system-ui, sans-serif;
  --f-mono: 'JetBrains Mono', ui-monospace, Menlo, monospace;
  --mono: var(--f-mono);
  --serif: var(--f-display);
}
body {
  font-family: var(--f-body);
  font-size: 16px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  min-height: 100svh;
}
.app {
  max-width: var(--ob-page-max);
  padding: 20px var(--ob-gutter) 40px;
  margin: 0 auto;
}
.app > header.top {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  padding: 0;
  border: 0;
  margin: 0 0 22px;
}
.top > .id {
  display: grid;
  gap: 4px;
  min-width: 0;
}
.top .eyebrow {
  font: 400 11px var(--f-mono);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--dim);
}
.top .eyebrow b {
  color: var(--acc);
  font-weight: 500;
}
.top h1 {
  font: italic 400 clamp(2.4rem, 6vw, 4.4rem)/0.98 var(--f-display);
  letter-spacing: -0.01em;
  margin: 0;
  overflow-wrap: anywhere;
}
.top h1 em {
  color: inherit;
  font: inherit;
}
.top .sub {
  display: block;
  font: 400 1.2rem/1.5 var(--f-display);
  color: var(--dim);
  margin: 0;
  max-width: none;
}
.top > .topr {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 8px;
  padding: 0;
}
.top .topr > a.back {
  display: block;
  font: 500 12px var(--f-body);
  text-decoration: none;
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 7px 12px;
  background: var(--panel);
  color: var(--ink);
  white-space: nowrap;
}
.top .pvs {
  font: 500 11px var(--f-mono);
  letter-spacing: 0.06em;
  color: var(--dim);
  font-variant-numeric: tabular-nums;
}
.top .pvs::before {
  content: '';
  display: inline-block;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: #6fd08c;
  margin-right: 7px;
  vertical-align: 1px;
}
button,
select,
input {
  font-family: var(--f-body);
}
button,
select {
  border-radius: 9px;
  font-weight: 600;
}
.label,
.number {
  font-family: var(--f-mono);
}
.panel,
.board,
.stage,
#game,
.editor {
  border-radius: 16px;
}
.editor > .stage {
  border-radius: 0;
}
.panel {
  padding: 16px;
}
.panel p {
  font-family: var(--f-body);
  font-size: 13px;
}
.panel h2 {
  font-family: var(--f-body);
}
.panel > .label {
  font: 500 11px var(--f-mono);
  letter-spacing: 0.14em;
}
.layout,
.workspace {
  gap: 20px;
}
.app-navigation {
  display: flex;
  align-items: center;
  gap: 12px;
  margin: 0 0 20px;
}
.app-navigation > .viewnav,
.app-navigation > .segmented {
  width: max-content;
}
.topbar {
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 20px;
}
.topbar > .tabs {
  margin-right: auto;
}
.how {
  border: 1px solid var(--line);
  border-radius: 16px;
  background: var(--panel);
  padding: 0;
  margin-top: 22px;
}
.how > summary {
  padding: 14px 18px;
  font: 500 11px var(--f-mono);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--dim);
  list-style: none;
  cursor: pointer;
}
.how > summary::-webkit-details-marker {
  display: none;
}
.how > summary::before {
  content: '+';
  display: inline-block;
  width: 1.2em;
  color: var(--acc);
}
.how[open] > summary::before {
  content: '−';
}
.how > .helpgrid,
.how > .help {
  padding: 0 18px 18px;
  margin-top: 0;
  font-family: var(--f-body);
  font-size: 13px;
}
.exports,
.export,
.exportdrawer {
  border-radius: 16px;
}
.footer {
  font-family: var(--f-mono);
  font-size: 10px;
  margin-top: 22px;
}
@media (max-width: 680px) {
  .app {
    padding: 18px 14px 30px;
  }
  .app > header.top {
    gap: 12px;
    margin-bottom: 20px;
  }
  .top .sub {
    font-size: 1.05rem;
  }
  .top .eyebrow {
    font-size: 9px;
    letter-spacing: 0.1em;
  }
  .top .topr > a.back {
    font-size: 11px;
    padding: 7px 10px;
  }
  .top h1 {
    font-size: clamp(2.4rem, 8vw, 3rem);
  }
  .top .pvs {
    font-size: 9px;
  }
  .layout,
  .workspace {
    gap: 14px;
  }
  .topbar > .tabs {
    width: 100%;
  }
  .topbar > .tabs button {
    flex: 1;
  }
  .app-navigation {
    margin-bottom: 16px;
  }
}

/* Wide screens: the 3D view takes all the width next to the panel and as much height as
   fits with the toolbar, hint and stats still on the first screen. */
@media (min-width: 681px) {
  .layout {
    grid-template-columns: minmax(0, 1fr) var(--ob-panel);
  }
  .viewport {
    height: clamp(410px, calc(100dvh - 430px), 1200px);
  }
}