.conversation {
  display: grid;
  grid-template-columns: minmax(0, 0.8fr) minmax(0, 1.25fr);
  gap: 38px;
  padding: 24px 0;
  border-top: 1px solid var(--line);
}
#fly3d {
  width: 100%;
  height: 230px;
  display: block;
}
.companion {
  min-width: 0;
}
.companion > label {
  font-size: 12px;
}
.subtitle {
  padding: 14px 0;
}
.subtitle span {
  font-size: 11px;
  color: var(--muted);
}
.subtitle strong {
  display: block;
  font:
    32px "Noto Serif JP",
    serif;
  margin: 8px 0;
}
.subtitle p {
  font-size: 12px;
  min-height: 22px;
}
#arena {
  width: 210px;
  height: 210px;
  background: var(--surface);
  border: 1px solid var(--line);
}
.session-controls,
.actions,
.phrases {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
}
.session-controls {
  font-size: 12px;
}
.session-controls label {
  display: flex;
  align-items: center;
  gap: 6px;
}
#seed {
  width: 82px;
}
.dialogue {
  min-width: 0;
}
#status {
  min-height: 28px;
  font-size: 12px;
  margin-top: 12px;
}
#messages {
  height: 300px;
  overflow-y: auto;
  overscroll-behavior: contain;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  padding: 18px 4px;
  margin-bottom: 18px;
}
.welcome {
  color: var(--muted);
  margin-top: 48px;
}
article {
  padding: 10px 0 16px;
  border-bottom: 1px solid var(--line);
}
article:last-child {
  border-bottom: 0;
}
article strong {
  font-size: 12px;
}
article .utterance {
  font:
    22px "Noto Serif JP",
    serif;
  margin: 5px 0;
}
article p {
  font-size: 12px;
  margin: 4px 0;
}
article.user {
  text-align: right;
}
article.user .utterance {
  font:
    15px "Zen Kaku Gothic New",
    sans-serif;
}
.composer {
  display: flex;
  gap: 10px;
  margin: 8px 0 12px;
}
.composer input {
  min-width: 0;
  flex: 1;
  border: 1px solid var(--line);
  padding: 10px;
  background: var(--surface);
  border-radius: 4px;
}
#conversion {
  margin: 14px 0;
}
.evidence {
  display: grid;
  grid-template-columns: minmax(0, 0.8fr) minmax(0, 1.25fr);
  gap: 38px;
  padding: 30px 0;
  border-top: 1px solid var(--line);
}
dl > div {
  display: flex;
  justify-content: space-between;
  border-bottom: 1px solid var(--line);
  padding: 10px 0;
}
dd {
  font-family: "DM Mono", monospace;
}
#reaction-map {
  display: block;
  width: 100%;
  height: 340px;
  margin-top: 14px;
}
.talk-guide {
  max-width: 820px;
  padding: 32px 0 60px;
  border-top: 1px solid var(--line);
}
#error[hidden] {
  display: none;
}
.heading {
  padding-top: 24px;
  padding-bottom: 26px;
}
.heading h1 {
  font-size: 40px;
}
.brand span {
  font-size: 10px;
}
#messages:focus-visible {
  outline: 2px solid var(--accent);
}
@media (max-width: 800px) {
  .conversation,
  .evidence {
    grid-template-columns: minmax(0, 1fr);
  }
  .companion {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    gap: 12px;
  }
  .companion #fly3d {
    grid-row: 1/4;
    height: 230px;
  }
  .companion #arena {
    width: 160px;
    height: 160px;
  }
  .companion .fine {
    font-size: 11px;
  }
  nav {
    gap: 12px;
  }
  .brand span {
    display: none;
  }
  .heading h1 {
    font-size: 32px;
  }
  #messages {
    height: 260px;
  }
}
@media (max-width: 450px) {
  header,
  main {
    padding-left: 16px;
    padding-right: 16px;
  }
  .brand {
    font-size: 12px;
  }
  nav {
    font-size: 12px;
    gap: 9px;
  }
  .companion {
    display: block;
  }
  #arena {
    width: 150px;
    height: 150px;
  }
  .companion #fly3d {
    height: 200px;
  }
  .subtitle strong {
    font-size: 28px;
  }
  .session-controls {
    gap: 8px;
  }
  .session-controls button {
    font-size: 12px;
  }
  .actions button,
  .phrases button {
    font-size: 12px;
  }
  .heading h1 {
    font-size: 30px;
  }
  .evidence {
    gap: 20px;
  }
}