:root {
  --intro-room: 8rem;
  --intro-room-wide: 5rem;
}

.layout {
  display: grid;
  grid-template-columns: 240px minmax(0, 1fr);
  gap: 24px;
  align-items: start;
}

#field-title,
.panel-head h2 {
  font-size: 1.05rem;
  margin: 0 0 12px;
}

#setup label {
  display: flex;
  flex-direction: column;
  align-items: stretch;
  gap: 6px;
  margin-bottom: 12px;
  color: var(--muted);
  font-size: .85rem;
}

#setup input,
#setup select {
  width: 100%;
  min-width: 0;
}

#setup {
  padding: 16px;
  border: 1px solid var(--rule);
  border-radius: 16px;
  background: var(--surface);
}

#new {
  width: 100%;
  justify-content: flex-start;
}

.text-button {
  margin-top: 12px;
  padding: 0 12px;
  min-height: 44px;
  border: 1px solid var(--rule);
  border-radius: 999px;
  background: var(--surface);
  font-size: .85rem;
}

#notice,
#unique {
  color: var(--muted);
  font-size: .8rem;
  line-height: 1.5;
}

.panel-head {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 12px;
  margin-bottom: 12px;
}

.panel-head h2 {
  margin: 0;
}

#summary,
#clock {
  font-size: .8rem;
  opacity: .8;
}

#board {
  --ka-ink: var(--felt-ink);
  --ka-surface: rgba(0, 0, 0, .28);
  --ka-rule: rgba(255, 255, 255, .35);
}

.akari-dimensions {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
}

.akari-intro {
  margin: 1rem 0 1.5rem;
  line-height: 1.6;
}

.rules {
  margin-top: 2rem;
}

.rules p {
  max-width: 70ch;
}

@media (max-width: 700px) {
  .layout {
    grid-template-columns: 1fr;
  }

  .panel {
    padding: 14px 10px;
  }

  #setup {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0 12px;
  }

  .akari-dimensions {
    grid-column: 1 / -1;
  }

  #new {
    grid-column: 1 / -1;
  }

  .ka-board {
    min-width: 0;
  }
}