:root {
  --forest: #1f4d36;
  --forest-2: #2c6a4b;
  --parchment: #f6f4ef;
  --paper: #fffdf8;
  --ink: #1d2a22;
  --muted: #5d6b62;
  --border: #d9d3c4;
  --gold: #b8892f;
  --red: #b23a35;
  --radius: 10px;
  --serif: Georgia, 'Times New Roman', serif;
  --sans: system-ui, -apple-system, 'Segoe UI', Roboto, Arial, sans-serif;
}
* { box-sizing: border-box; }
[hidden] { display: none !important; }
html, body { margin: 0; background: var(--parchment); color: var(--ink); font: 16px/1.55 var(--sans); }
h1, h2, h3 { font-family: var(--serif); font-weight: 600; color: var(--forest); margin: 0; }
button, select, textarea, input { font: inherit; color: inherit; }
button, .ghost {
  cursor: pointer; border: 1px solid var(--forest); background: var(--forest); color: #fff;
  border-radius: 8px; padding: .5rem 1rem; text-decoration: none; display: inline-flex; align-items: center; gap: .4rem;
}
button:hover:not(:disabled) { background: var(--forest-2); }
button:disabled { opacity: .5; cursor: default; }
.ghost { background: transparent; color: var(--forest); }
.ghost:hover:not(:disabled) { background: #e9e5da; }
.small { padding: .3rem .7rem; font-size: .9rem; }
:focus-visible { outline: 3px solid var(--gold); outline-offset: 2px; }
.visually-hidden { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); }
.muted, .hint { color: var(--muted); font-size: .92rem; }

.top {
  display: flex; justify-content: space-between; align-items: flex-end; gap: 1rem; flex-wrap: wrap;
  padding: 1.25rem clamp(1rem, 4vw, 2.5rem); border-bottom: 3px solid var(--gold); background: var(--paper);
}
.top h1 { font-size: 1.7rem; }
.sub { margin: .2rem 0 0; color: var(--muted); }
.top-actions { display: flex; gap: .5rem; }

.thread { max-width: 820px; margin: 0 auto; padding: 1.5rem 1rem 11rem; }
.welcome { background: var(--paper); border: 1px solid var(--border); border-radius: var(--radius); padding: 1.25rem 1.5rem; }
.hello { font-family: var(--serif); font-size: 1.3rem; color: var(--forest); margin-top: 0; }
.examples { list-style: none; padding: 0; margin: 1rem 0 0; display: grid; gap: .5rem; }
.example { width: 100%; justify-content: flex-start; text-align: start; background: var(--parchment); color: var(--ink); border-color: var(--border); }
.example:hover:not(:disabled) { background: #ece7da; }

.turn { margin: 1.5rem 0; }
.turn .q {
  margin: 0 0 .6rem auto; max-width: 85%; width: fit-content; background: var(--forest); color: #fff;
  padding: .6rem 1rem; border-radius: var(--radius) var(--radius) 2px var(--radius); white-space: pre-wrap;
}
.turn .a { background: var(--paper); border: 1px solid var(--border); border-radius: var(--radius); padding: 1rem 1.25rem; }
.answer p { margin: 0 0 .7rem; }
.answer ul, .answer ol { margin: 0 0 .7rem; padding-inline-start: 1.3rem; }
.answer li { margin: .25rem 0; }
.cite {
  display: inline-block; font-size: .78rem; line-height: 1.4; padding: 0 .45rem; margin: 0 .1rem;
  border: 1px solid var(--gold); border-radius: 999px; color: #7a5a1c; background: #fbf4e4; white-space: nowrap; unicode-bidi: isolate;
}
.cite-unchecked { border-style: dashed; border-color: var(--red); color: var(--red); background: #fdf0ef; }
.progress { display: flex; align-items: center; gap: .6rem; color: var(--muted); margin: 0; }
.dot { width: .6rem; height: .6rem; border-radius: 50%; background: var(--gold); animation: pulse 1.1s ease-in-out infinite; }
@keyframes pulse { 50% { opacity: .25; transform: scale(.7); } }
@media (prefers-reduced-motion: reduce) { .dot { animation: none; } }
.steps { color: var(--muted); font-size: .85rem; margin: .4rem 0 0; }
.steps:empty { display: none; }
.error { color: var(--red); margin: 0; }
.note { color: var(--muted); font-style: italic; }

.fb { border-top: 1px dashed var(--border); margin-top: .9rem; padding-top: .8rem; display: grid; gap: .6rem; }
.fb-row { display: flex; align-items: center; gap: .5rem; flex-wrap: wrap; }
.fb-label { color: var(--muted); font-size: .92rem; margin-inline-end: .2rem; }
.thumb { background: transparent; border-color: var(--border); color: var(--ink); padding: .3rem .65rem; font-size: 1.05rem; }
.thumb[aria-pressed="true"] { background: #e7efe9; border-color: var(--forest); }
.fb-comment, .composer textarea {
  width: 100%; border: 1px solid var(--border); border-radius: 8px; padding: .55rem .75rem; background: #fff; resize: vertical;
}
.fb-preview { display: flex; align-items: flex-start; gap: .6rem; }
.fb-preview img { max-width: 220px; max-height: 140px; border: 1px solid var(--border); border-radius: 6px; }
.fb-actions { display: flex; align-items: center; gap: .75rem; }
.fb-status { color: var(--muted); font-size: .9rem; }
.fb.sent .fb-status { color: var(--forest); font-weight: 600; }

.composer {
  position: fixed; inset: auto 0 0 0; display: flex; gap: .6rem; align-items: flex-end;
  padding: .9rem max(1rem, calc((100vw - 820px) / 2)); background: linear-gradient(transparent, var(--parchment) 25%);
}
.composer textarea { min-height: 3.1rem; max-height: 40vh; box-shadow: 0 2px 10px rgba(29, 42, 34, .08); }
.composer button { height: 3.1rem; padding: 0 1.4rem; }

.shot-dialog { border: 1px solid var(--border); border-radius: var(--radius); padding: 0; width: min(1100px, 96vw); background: var(--paper); color: var(--ink); }
.shot-dialog::backdrop { background: rgba(29, 42, 34, .55); }
.shot-inner { padding: 1.25rem; display: grid; gap: .75rem; }
.shot-inner .hint { margin: 0; }
.shot-source { display: flex; align-items: center; gap: .6rem; flex-wrap: wrap; }
.file-pick { cursor: pointer; }
#shot-canvas { width: 100%; max-height: 65vh; object-fit: contain; border: 1px solid var(--border); border-radius: 6px; cursor: crosshair; touch-action: none; background: #fff; }
.shot-actions { display: flex; gap: .5rem; align-items: center; }
.spacer { flex: 1; }

.signin { display: grid; place-items: center; min-height: 100vh; padding: 1rem; }
.card { background: var(--paper); border: 1px solid var(--border); border-top: 4px solid var(--gold); border-radius: var(--radius); padding: 2rem; max-width: 420px; }

.filters { display: flex; gap: 1rem; align-items: center; flex-wrap: wrap; max-width: 980px; margin: 1rem auto 0; padding: 0 1rem; }
.filters select { padding: .3rem .5rem; border: 1px solid var(--border); border-radius: 6px; background: #fff; }
.check { display: inline-flex; gap: .35rem; align-items: center; }
.count { color: var(--muted); margin-inline-start: auto; }
.review { max-width: 980px; margin: 0 auto; padding: 1rem 1rem 3rem; display: grid; gap: 1rem; }
.item { background: var(--paper); border: 1px solid var(--border); border-inline-start: 4px solid var(--forest); border-radius: var(--radius); padding: 1rem 1.25rem; }
.item.bad { border-inline-start-color: var(--red); }
.item h3 { font-size: .8rem; text-transform: uppercase; letter-spacing: .06em; color: var(--muted); font-family: var(--sans); margin: .8rem 0 .2rem; }
.item-head { display: flex; gap: .8rem; align-items: center; flex-wrap: wrap; color: var(--muted); font-size: .9rem; }
.item-head .rating { font-size: 1.3rem; }
.item-head .person { color: var(--ink); font-weight: 600; }
.item-head .cost { margin-inline-start: auto; }
.item .comment { background: #fbf4e4; border-inline-start: 3px solid var(--gold); padding: .5rem .8rem; margin: .6rem 0 0; white-space: pre-wrap; }
.item .q { margin: 0; white-space: pre-wrap; }
.item .sources { color: var(--muted); font-size: .85rem; margin-top: .3rem; }
.shot { display: block; max-width: 100%; max-height: 360px; margin-top: .8rem; border: 1px solid var(--border); border-radius: 6px; }
.tools { margin-top: .8rem; }
.tools summary { cursor: pointer; color: var(--forest); }
.tools li { margin: .4rem 0; }
.tools code { font-size: .82rem; word-break: break-all; }
.tools pre { white-space: pre-wrap; font-size: .78rem; background: #f1eee6; padding: .5rem; border-radius: 6px; max-height: 200px; overflow: auto; margin: .3rem 0 0; }

@media (max-width: 600px) {
  .top { align-items: flex-start; }
  .turn .q { max-width: 100%; }
  .composer button { padding: 0 1rem; }
}