:root {
  --wall: #d9ded8;
  --ink: #1d2321;
  --ink-soft: #4d5754;
  --felt: #1f2624;
  --groove: #263030;
  --letter: #f1efe7;
  --letter-off: #8c9692;
  --oak: #a97c4f;
  --oak-dark: #7e5933;
  --focus: #f1efe7;
  --bad: #9c3b2e;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) { --wall: #171b1a; --ink: #d6dbd7; --ink-soft: #98a29e; --oak: #8f6640; --oak-dark: #5f4127; --bad: #d07a68; }
}
:root[data-theme="dark"] { --wall: #171b1a; --ink: #d6dbd7; --ink-soft: #98a29e; --oak: #8f6640; --oak-dark: #5f4127; --bad: #d07a68; }

* { box-sizing: border-box; }
body {
  margin: 0; min-height: 100vh; background: var(--wall); color: var(--ink);
  font-family: "Archivo", system-ui, sans-serif; font-variation-settings: "wdth" 100;
  font-size: 1rem; line-height: 1.5; padding: 32px 16px;
  display: flex; justify-content: center;
}
main { width: 100%; max-width: 72rem; }
[hidden] { display: none !important; }
header { margin: 0 4px 24px; }
header h1 { margin: 0 0 8px; font-size: clamp(2.2rem, 7vw, 3.2rem); line-height: 1; font-variation-settings: "wdth" 112; font-weight: 700; }
header p { margin: 0; color: var(--ink-soft); }

/* The directory board: oak frame, grooved felt, pressed-in letters (same look as the front page) */
.board {
  background: var(--felt);
  background-image: repeating-linear-gradient(to bottom, transparent 0 5px, var(--groove) 5px 6px);
  border: 12px solid var(--oak); border-color: var(--oak) var(--oak-dark) var(--oak-dark) var(--oak);
  border-radius: 3px; color: var(--letter);
  box-shadow: 0 1px 0 1px rgba(0,0,0,.18), 0 18px 40px -22px rgba(0,0,0,.55), inset 0 2px 6px rgba(0,0,0,.6);
  padding: 22px 20px 24px;
}
.board h2 { margin: 0 0 12px; font-size: 1.5rem; font-variation-settings: "wdth" 112; font-weight: 700; }
.board.small h2 { font-size: 1.2rem; }

.gate { max-width: 26rem; margin: 24px auto 0; }
.gate form { display: grid; gap: 14px; }
label { display: grid; gap: 6px; font-size: .95rem; }
input, textarea, select {
  font: inherit; color: #1d2321; background: var(--letter); border: 2px solid var(--oak-dark);
  border-radius: 2px; padding: 9px 10px; width: 100%;
}
input[readonly] { background: #cfd3cd; }
.gate label { color: var(--letter); }
button {
  font: inherit; font-weight: 600; cursor: pointer; border-radius: 2px; padding: 10px 16px;
  background: var(--oak); color: var(--letter); border: 2px solid var(--oak-dark);
}
button:focus-visible, input:focus-visible, textarea:focus-visible, select:focus-visible { outline: 3px solid var(--focus); outline-offset: 2px; }
button.ghost { background: transparent; color: var(--ink); border-color: var(--oak-dark); }
.help { color: var(--letter-off); margin: -4px 0 12px; }
.error { color: #f0b8a8; margin: 0; min-height: 1.4em; }
.gate .error { color: #f0b8a8; }

.app { display: grid; gap: 20px; grid-template-columns: 16rem 1fr; align-items: start; }
.side { display: grid; gap: 18px; }
.side > button { justify-self: start; }
.list { list-style: none; margin: 0 0 8px; padding: 0; display: grid; gap: 6px; }
.list li button { width: 100%; text-align: left; background: transparent; color: var(--letter); border: 1px dashed var(--letter-off); font-weight: 400; padding: 7px 9px; }
.list li button.on { border-style: solid; border-color: var(--letter); }
.list li button.small { width: auto; margin-top: 4px; font-size: .8rem; padding: 4px 9px; color: var(--letter-off); border-color: var(--letter-off); }
.list .sub { display: block; font-size: .8rem; color: var(--letter-off); }
.list .ok { color: #9fd3a6; }
.list .bad { color: #f0b8a8; }
.side .board button.ghost { color: var(--letter); border-color: var(--letter-off); }

.chat { display: grid; gap: 12px; min-width: 0; }
.bar { display: flex; align-items: center; gap: 10px; min-height: 2rem; }
.tag { background: var(--oak); color: var(--letter); padding: 3px 10px; border-radius: 2px; font-size: .95rem; }
.log {
  min-height: 22rem; max-height: 60vh; overflow-y: auto; display: grid; align-content: start; gap: 12px;
  background: var(--felt); color: var(--letter); padding: 18px; border: 10px solid var(--oak-dark); border-radius: 3px;
  background-image: repeating-linear-gradient(to bottom, transparent 0 5px, var(--groove) 5px 6px);
}
.msg { max-width: 46rem; padding: 10px 14px; border-radius: 3px; white-space: pre-wrap; overflow-wrap: anywhere; }
.msg.user { justify-self: end; background: var(--oak); color: var(--letter); }
.msg.assistant { justify-self: start; background: rgba(241,239,231,.08); border: 1px solid rgba(241,239,231,.2); }
.msg.note { justify-self: start; color: var(--letter-off); font-size: .9rem; background: none; padding: 0; }
.msg.error { justify-self: start; color: #f0b8a8; }
.work { font-family: ui-monospace, Consolas, monospace; font-size: .82rem; color: var(--letter-off); white-space: pre-wrap; overflow-wrap: anywhere; }
.work.bad { color: #f0b8a8; }
.move { background: var(--letter); color: var(--ink); border: 2px solid var(--oak-dark); padding: 12px 14px; display: grid; gap: 10px; border-radius: 3px; }
.move p { margin: 0; }
.move div { display: flex; gap: 10px; }
.choice { justify-self: start; max-width: 46rem; display: grid; gap: 10px; background: var(--letter); color: var(--ink); border: 2px solid var(--oak-dark); padding: 12px 14px; border-radius: 3px; }
.choice p { margin: 0; }
.choice-row { display: flex; flex-wrap: wrap; gap: 8px; }
.choice button.ghost { color: var(--ink); border-color: var(--oak-dark); }
.composer { display: grid; gap: 10px; }
.composer textarea { resize: vertical; min-height: 4.5rem; }
.composer .row { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; }
.composer select { width: auto; min-width: 14rem; }
.composer .think { display: flex; align-items: center; gap: 6px; font-size: .9rem; color: var(--ink-soft); }
.composer .think input { width: auto; }
.composer button[type=submit] { margin-left: auto; }

@media (max-width: 760px) {
  .app { grid-template-columns: 1fr; }
  .log { min-height: 16rem; }
  body { padding: 20px 14px; }
}