/* Abstract: Feather brand imagery, image import, script library, and conversation styling. Out of scope: Application behavior. */
:root {
  --bg: #16141b;
  --panel: #201d27;
  --panel-2: #29252f;
  --line: #3a3442;
  --text: #ebe6dc;
  --muted: #a39cac;
  --gold: #d3ad62;
  --gold-soft: rgba(211, 173, 98, .14);
  --danger: #e0645a;
  --danger-soft: rgba(224, 100, 90, .14);
  --ok: #6fbf8e;
  --ok-soft: rgba(111, 191, 142, .14);
  --info: #7aa7e0;
  --info-soft: rgba(122, 167, 224, .14);
  --warn: #e3b450;
  --dm: #b04a5a;
  --radius: 10px;
  --sans: -apple-system, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
  --serif: "Songti SC", "Noto Serif CJK SC", "Source Han Serif SC", serif;
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--text); font: 15px/1.6 var(--sans); }
a { color: var(--gold); text-decoration: none; }
a:hover { text-decoration: underline; }
h1, h2, h3 { font-family: var(--serif); font-weight: 600; letter-spacing: .02em; margin: 0 0 .6em; }
h1 { font-size: 24px; } h2 { font-size: 19px; } h3 { font-size: 16px; }
button, input, select, textarea { font: inherit; color: inherit; }
input, select, textarea {
  background: #15131a; border: 1px solid var(--line); border-radius: 7px; padding: 6px 9px; width: 100%;
}
textarea { min-height: 70px; resize: vertical; }
input:focus, select:focus, textarea:focus { outline: 2px solid var(--gold-soft); border-color: var(--gold); }
label { display: block; font-size: 13px; color: var(--muted); margin: 6px 0 3px; }
button {
  background: var(--panel-2); border: 1px solid var(--line); border-radius: 7px; padding: 6px 12px; cursor: pointer;
}
button:hover:not(:disabled) { border-color: var(--gold); }
button:disabled { opacity: .45; cursor: not-allowed; }
button.primary { background: var(--gold); color: #1b1710; border-color: var(--gold); font-weight: 600; }
button.danger { background: var(--danger-soft); color: #ffb3ab; border-color: var(--danger); }
button.danger:hover:not(:disabled) { background: var(--danger); color: #fff; }
button.small { padding: 2px 8px; font-size: 13px; }
button.link { background: none; border: none; color: var(--gold); padding: 0; }

.topbar {
  display: flex; align-items: center; justify-content: space-between; padding: 10px 22px;
  border-bottom: 1px solid var(--line); background: linear-gradient(180deg, #1d1922, #16141b);
  position: sticky; top: 0; z-index: 20;
}
.topbar nav { display: flex; gap: 16px; align-items: center; }
.brand { display: flex; align-items: center; gap: 10px; color: var(--text); }
.brand:hover { text-decoration: none; }
.brand-mark { display: block; width: 32px; height: 32px; flex-shrink: 0; object-fit: contain; border-radius: 50%; }
.brand-name { font-family: var(--serif); font-size: 20px; letter-spacing: .08em; }
.brand-sub { color: var(--muted); font-size: 13px; }
main { padding: 18px 22px 60px; max-width: 1500px; margin: 0 auto; }

.pill { display: inline-block; border-radius: 999px; padding: 1px 9px; font-size: 12px; border: 1px solid var(--line); color: var(--muted); white-space: nowrap; }
.pill.ok { color: var(--ok); border-color: var(--ok); background: var(--ok-soft); }
.pill.bad { color: var(--danger); border-color: var(--danger); background: var(--danger-soft); }
.pill.warn { color: var(--warn); border-color: var(--warn); }
.pill.gold { color: var(--gold); border-color: var(--gold); background: var(--gold-soft); }
.pill.info { color: var(--info); border-color: var(--info); background: var(--info-soft); }
.pill.dm { color: #ffb6c0; border-color: var(--dm); background: rgba(176, 74, 90, .18); }

.panel { background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); padding: 14px 16px; margin-bottom: 14px; }
.panel > h2:first-child, .panel > h3:first-child { margin-top: 0; }
.grid { display: grid; gap: 14px; }
.grid.two { grid-template-columns: repeat(auto-fit, minmax(360px, 1fr)); }
.row { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }
.row.end { justify-content: flex-end; }
.spacer { flex: 1; }
.muted { color: var(--muted); }
.small { font-size: 13px; }
.mono { font-family: ui-monospace, Menlo, monospace; font-size: 12px; }
.stack > * + * { margin-top: 8px; }
.tabs { display: flex; gap: 4px; border-bottom: 1px solid var(--line); margin-bottom: 14px; flex-wrap: wrap; }
.tabs button { border: none; border-bottom: 2px solid transparent; border-radius: 0; background: none; padding: 8px 14px; color: var(--muted); }
.tabs button.active { color: var(--gold); border-bottom-color: var(--gold); }
table { width: 100%; border-collapse: collapse; }
th, td { text-align: left; padding: 7px 8px; border-bottom: 1px solid var(--line); vertical-align: top; }
th { color: var(--muted); font-weight: 500; font-size: 13px; }

.card { background: var(--panel-2); border: 1px solid var(--line); border-radius: 9px; padding: 11px 13px; }
.card + .card { margin-top: 10px; }
.card.approved { border-left: 3px solid var(--ok); }
.card.rejected { opacity: .55; }
.card.inferred { border-left: 3px solid var(--warn); }
.kv { display: grid; grid-template-columns: 110px 1fr; gap: 4px 10px; font-size: 14px; }
.kv > div:nth-child(odd) { color: var(--muted); }

.quote { border-left: 3px solid var(--gold); background: var(--gold-soft); padding: 6px 10px; margin: 6px 0; border-radius: 0 6px 6px 0; font-size: 14px; }
.passage { background: #141218; border: 1px solid var(--line); border-radius: 7px; padding: 8px 10px; margin: 6px 0; font-size: 14px; }
.passage mark { background: rgba(211, 173, 98, .35); color: inherit; border-radius: 3px; }
.anchor { color: var(--gold); font-size: 12px; }

.dm-zone { border: 1px solid var(--dm); box-shadow: inset 0 0 0 1px rgba(176, 74, 90, .25); }
.dm-banner { background: rgba(176, 74, 90, .22); color: #ffd0d6; border: 1px solid var(--dm); border-radius: 8px; padding: 7px 11px; font-weight: 600; margin-bottom: 10px; }
.disclosure { border: 1px dashed var(--danger); background: var(--danger-soft); border-radius: 8px; padding: 9px 11px; margin-top: 8px; }

.stmt { padding: 8px 10px; border-radius: 7px; margin: 6px 0; border: 1px solid var(--line); }
.stmt.fact { border-left: 4px solid var(--ok); }
.stmt.inference { border-left: 4px solid var(--info); }
.stmt.unknown { border-left: 4px solid var(--muted); }
.conflict { border: 1px solid var(--warn); background: rgba(227, 180, 80, .1); border-radius: 7px; padding: 7px 10px; margin: 6px 0; }

/* console */
.console-head { display: grid; grid-template-columns: 1.4fr 1fr; gap: 14px; }
.phase-now { font-family: var(--serif); font-size: 30px; color: var(--gold); line-height: 1.2; }
.timer { font-family: ui-monospace, Menlo, monospace; font-size: 34px; letter-spacing: .04em; }
.timer.over { color: var(--danger); }
.next-step { background: var(--gold-soft); border: 1px solid rgba(211, 173, 98, .4); border-radius: 8px; padding: 8px 11px; margin-top: 8px; }
.phase-rail { display: flex; gap: 6px; margin-top: 10px; flex-wrap: wrap; }
.phase-rail span { font-size: 12px; padding: 2px 8px; border-radius: 999px; border: 1px solid var(--line); color: var(--muted); }
.phase-rail span.visited { color: var(--text); }
.phase-rail span.current { border-color: var(--gold); color: var(--gold); background: var(--gold-soft); }
.console-body { display: grid; grid-template-columns: minmax(300px, 1fr) minmax(300px, 1fr) minmax(360px, 1.25fr); gap: 14px; margin-top: 14px; }
@media (max-width: 1100px) { .console-body, .console-head { grid-template-columns: 1fr; } }
.todo { display: flex; gap: 8px; align-items: flex-start; padding: 4px 0; }
.todo input { width: auto; margin-top: 5px; }
.todo.done span { text-decoration: line-through; color: var(--muted); }
.clue-row { display: flex; gap: 8px; align-items: center; padding: 7px 0; border-bottom: 1px solid var(--line); flex-wrap: wrap; }
.clue-row .name { flex: 1; min-width: 140px; }
.status-ended { color: var(--muted); }

/* read-aloud */
body.read-mode { background: #0d0c10; }
body.read-mode .topbar { display: none; }
.read-view { max-width: 820px; margin: 0 auto; padding: 40px 20px 120px; }
.read-view h1 { font-size: 20px; color: var(--muted); font-family: var(--sans); font-weight: 500; }
.read-text { font-family: var(--serif); font-size: 26px; line-height: 2; white-space: pre-wrap; color: #f3eee4; }
.read-item { border-top: 1px solid var(--line); padding: 26px 0; }
.read-item h2 { color: var(--gold); }

.toast { position: fixed; bottom: 22px; left: 50%; transform: translateX(-50%); background: #2c2733; border: 1px solid var(--gold); padding: 9px 16px; border-radius: 8px; z-index: 100; max-width: 80vw; }
.toast.error { border-color: var(--danger); }
.modal-back { position: fixed; inset: 0; background: rgba(0, 0, 0, .6); display: grid; place-items: center; z-index: 90; }
.modal { background: var(--panel); border: 1px solid var(--line); border-radius: 12px; padding: 18px 20px; width: min(520px, 92vw); }
.modal.danger { border-color: var(--danger); }
.empty { color: var(--muted); padding: 10px 0; font-size: 14px; }
details > summary { cursor: pointer; color: var(--muted); font-size: 13px; }
.error-box { border: 1px solid var(--danger); background: var(--danger-soft); border-radius: 7px; padding: 7px 10px; font-size: 14px; }

.chat-entry { border: 1px solid var(--gold); border-radius: 10px; padding: 10px 18px; }
.chat-shell { max-width: 960px; margin: 0 auto; display: flex; flex-direction: column; height: calc(100dvh - 120px); min-height: 480px; }
.chat-header { padding: 10px 0 16px; border-bottom: 1px solid var(--line); }
.chat-header h2 { margin: 0; }
.chat-log { flex: 1; overflow-y: auto; min-height: 0; padding: 28px 12px; scroll-behavior: smooth; }
.chat-welcome { text-align: center; max-width: 680px; margin: 7vh auto 20px; }
.chat-symbol { display: block; margin: 0 auto 24px; width: 56px; height: 56px; object-fit: contain; border-radius: 18px; }
.chat-suggestions { display: flex; justify-content: center; flex-wrap: wrap; gap: 12px; margin-top: 28px; }
.chat-suggestions button { max-width: 290px; padding: 14px 18px; text-align: left; color: var(--muted); }
.chat-message { margin: 0 0 24px; max-width: 88%; }
.chat-message.user { margin-left: auto; width: fit-content; }
.chat-author { font-size: 12px; color: var(--muted); margin-bottom: 6px; }
.chat-message.user .chat-author { text-align: right; }
.chat-bubble { white-space: pre-wrap; overflow-wrap: anywhere; line-height: 1.85; padding: 14px 18px; border-radius: 16px; background: var(--panel); }
.chat-message.user .chat-bubble { background: var(--gold-soft); border: 1px solid rgba(211,173,98,.22); }
.chat-thinking { color: var(--gold); padding: 8px 18px; }
.chat-composer { padding: 16px; border: 1px solid var(--line); border-radius: 20px; background: var(--panel); box-shadow: 0 12px 40px #0003; }
.chat-composer:focus-within { border-color: var(--gold); }
.chat-input-row { display: flex; align-items: flex-end; gap: 12px; }
.chat-input { min-height: 80px; max-height: 220px; border: 0; background: transparent; resize: vertical; padding: 4px; }
.chat-input:focus { outline: none; }
.chat-send { flex: 0 0 44px; width: 44px; height: 44px; border-radius: 14px; font-size: 26px; padding: 0; }
.chat-footer { margin-top: 10px; }
@media (max-width: 640px) {
  .topbar { padding: 10px 12px; flex-wrap: wrap; gap: 8px; }
  .brand-sub { display: none; }
  .topbar nav { gap: 10px; font-size: 13px; flex-wrap: wrap; }
  main { padding: 12px 12px 28px; }
  .chat-shell { height: calc(100dvh - 140px); }
  .chat-message { max-width: 96%; }
  .chat-welcome { margin-top: 20px; }
  .chat-composer { padding: 12px; }
}

.home-grid { grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); align-items: start; }
.image-drop { border: 1px dashed var(--line); border-radius: 14px; padding: 24px 18px; text-align: center; background: #17141d; }
.image-drop.drag-active { border-color: var(--gold); background: var(--gold-soft); }
.image-drop input { max-width: 360px; }
.upload-symbol { font-size: 30px; color: var(--gold); }
.image-previews { display: grid; grid-template-columns: repeat(auto-fill, minmax(110px, 1fr)); gap: 10px; }
.image-preview { position: relative; min-width: 0; padding: 8px; border: 1px solid var(--line); border-radius: 10px; }
.image-preview img { width: 100%; height: 110px; object-fit: contain; }
.image-preview span { display: block; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.image-preview .remove-cross { position: absolute; top: 3px; right: 3px; }
.remove-cross { padding: 0; width: 28px; height: 28px; flex: 0 0 28px; font-size: 20px; color: var(--muted); border-color: transparent; }
.remove-cross:hover { color: var(--danger); }
.script-card { display: flex; gap: 12px; align-items: center; border-bottom: 1px solid var(--line); padding: 16px 0; }
.script-card-link { flex: 1; min-width: 0; display: flex; flex-direction: column; gap: 6px; overflow-wrap: anywhere; }
@media (max-width: 720px) { .home-grid { grid-template-columns: minmax(0, 1fr); } }

.thinking-dots span { display: inline-block; animation: thinking-dot 1.1s ease-in-out infinite; }
@keyframes thinking-dot { 0%, 70%, 100% { opacity: .25; transform: translateY(0); } 35% { opacity: 1; transform: translateY(-3px); } }
.broadcast-caret { color: var(--gold); animation: broadcast-blink .8s steps(1, end) infinite; }
@keyframes broadcast-blink { 50% { opacity: 0; } }
@media (prefers-reduced-motion: reduce) { .thinking-dots span, .broadcast-caret { animation: none; } }

.chat-send svg { display: block; margin: auto; }
.chat-attach { display: grid; place-items: center; flex: 0 0 44px; width: 44px; height: 44px; padding: 0; border: 1px solid var(--line); border-radius: 50%; background: var(--panel); color: var(--text); }
.chat-attach svg { display: block; width: 20px; height: 20px; }
.chat-footer { align-items: center; }
.chat-attachments { display: flex; flex-wrap: wrap; gap: 8px; }
.chat-attachments:empty { display: none; }
.chat-attachment { display: inline-flex; align-items: center; gap: 8px; border: 1px solid var(--line); border-radius: 10px; padding: 4px 8px; overflow-wrap: anywhere; max-width: 100%; font-size: 13px; }