* { box-sizing: border-box; margin: 0; padding: 0; -webkit-tap-highlight-color: transparent; }

:root {
  --ink: #111827;
  --ink-2: #4b5563;
  --ink-3: #9ca3af;
  --line: #e5e7eb;
  --line-2: #d1d5db;
  --bg: #f9fafb;
  --card: #ffffff;
  --accent: #0d9488;
  --accent-d: #0f766e;
  --accent-soft: #f0fdfa;
  --accent-line: #99f6e4;
  --danger: #b91c1c;
  --warn: #b45309;
  --ok: #15803d;
  --r: 12px;
  --shadow: 0 1px 2px rgba(17, 24, 39, 0.05);
}

body {
  font: 400 13px/1.55 -apple-system, "Segoe UI Variable Text", "Segoe UI", Inter, system-ui, sans-serif;
  color: var(--ink);
  height: 100vh;
  overflow: hidden;
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}
#app { display: flex; height: 100vh; }

/* ---------- mode rail (light, like the web sidebar) ---------- */
#rail {
  width: 64px; flex-shrink: 0; overflow-y: auto; padding: 8px 5px 14px;
  display: flex; flex-direction: column; gap: 1px;
  background: #ffffff; border-left: 1px solid var(--line);
}
#rail::-webkit-scrollbar { width: 0; }
.rail-btn {
  border: 0; background: transparent; color: var(--ink-2); cursor: pointer;
  padding: 8px 2px 6px; border-radius: 10px; font: 600 9.5px/1.2 inherit;
  display: flex; flex-direction: column; align-items: center; gap: 4px; width: 100%;
  transition: background 0.15s ease, color 0.15s ease;
}
.rail-btn svg { width: 18px; height: 18px; stroke: currentColor; fill: none; stroke-width: 1.7; }
.rail-btn:hover { color: var(--ink); background: var(--bg); }
.rail-btn.on { color: var(--accent-d); background: var(--accent-soft); }
.rail-soon { opacity: 0.45; }

/* ---------- shell ---------- */
#main { flex: 1; min-width: 0; display: flex; flex-direction: column; position: relative; }

/* ---------- citation details card (caret inside a citation) ---------- */
#citeSheet:empty { display: none; }
#citeSheet { position: absolute; inset: 44px 0 0; z-index: 60; }
.cite-sheet { height: 100%; background: #fff; display: flex; flex-direction: column; }
.cs-head {
  display: flex; align-items: center; gap: 5px; flex-wrap: wrap; padding: 9px 11px;
  border-bottom: 1px solid var(--line); flex-shrink: 0;
}
.cs-body { flex: 1; overflow-y: auto; padding: 12px 12px 16px; }
.cs-t { font: 600 14px/1.4 inherit; letter-spacing: -0.015em; margin-bottom: 5px; }
.cs-a { color: var(--ink-3); font-size: 12px; line-height: 1.5; }
.cs-v { color: var(--accent-d); font-weight: 600; font-size: 12px; margin: 3px 0 8px; }
.q-block { border-left: 3px solid var(--accent); background: var(--accent-soft); border-radius: 0 8px 8px 0; padding: 9px 11px; margin: 8px 0; }
.q-t { font-size: 12px; line-height: 1.6; color: var(--ink-2); font-style: italic; }
.q-l { font: 700 9px inherit; letter-spacing: 0.07em; text-transform: uppercase; color: var(--accent-d); margin-top: 6px; }
.cs-foot {
  display: flex; flex-wrap: wrap; gap: 5px; padding: 9px 11px; flex-shrink: 0;
  border-top: 1px solid var(--line); background: var(--bg);
}
.cs-act {
  border: 1px solid var(--line-2); background: #fff; border-radius: 8px; cursor: pointer;
  padding: 5px 8px; font: 600 11px inherit; color: var(--ink-2);
}
.cs-act:hover { border-color: var(--accent); color: var(--accent-d); }
.cs-act.danger:hover { border-color: #fecaca; color: var(--danger); }
.cs-bar {
  display: flex; align-items: center; justify-content: space-between; gap: 8px; flex-shrink: 0;
  padding: 7px 12px; font-size: 11px; color: var(--ink-3); border-top: 1px solid var(--line); background: #fff;
}
.q-m { font-weight: 500; text-transform: none; letter-spacing: 0; color: var(--ink-3); }
.claim-row {
  display: flex; align-items: flex-start; gap: 8px; padding: 7px 0; border-bottom: 1px solid var(--line);
  font-size: 11.5px; line-height: 1.5; color: var(--ink-2);
}
.claim-row:last-child { border-bottom: 0; }
.claim-row span { flex: 1; min-width: 0; }
.badge.pdf { background: var(--accent-soft); color: var(--accent-d); }

/* Chat/Write formatted output: list rows and inline code */
.msg.ai .li { padding-left: 14px; position: relative; }
.msg.ai .li::before { content: "\2022"; position: absolute; left: 3px; color: var(--accent-d); }
.msg.ai code { background: var(--bg); border-radius: 3px; padding: 0 4px; font-size: 11.5px; }
.msg.ai h1, .msg.ai h2, .msg.ai h3 { font-size: 13px; font-weight: 600; margin: 6px 0 3px; }
.msg.ai p { margin: 0 0 6px; }
.msg.ai ul, .msg.ai ol { margin: 0 0 6px 16px; }

/* Chat thinking trail — mirrors the web ChatThinking / ChatTrail */
.trail { padding: 6px 4px 4px; margin-bottom: 8px; }
.trail.kept { margin: 6px 0 0 4px; padding: 2px 0 2px 8px; border-left: 2px solid var(--line); }
.tr-step + .tr-step { margin-top: 9px; }
.tr-row { display: flex; align-items: center; gap: 8px; font-size: 12.5px; color: var(--ink); }
.tr-row.on span { color: var(--ink); }
.tr-row i { font-style: normal; font-size: 10px; color: var(--ink-3); font-variant-numeric: tabular-nums; }
.tr-ico { width: 15px; height: 15px; flex-shrink: 0; }
.tr-ico.ok circle { fill: var(--accent-d); }
.tr-ico.ok path { fill: none; stroke: #fff; stroke-width: 2.4; stroke-linecap: round; stroke-linejoin: round; }
.tr-spin { border-radius: 50%; border: 2px solid var(--line-2); border-top-color: var(--accent-d); animation: trspin 0.8s linear infinite; }
@keyframes trspin { to { transform: rotate(360deg); } }
.tr-detail { margin: 3px 0 0 23px; font-size: 11.5px; line-height: 1.5; color: var(--ink-2); }
.tr-q { display: flex; align-items: center; gap: 6px; margin: 4px 0 0 23px; font-size: 11.5px; color: var(--ink-3); min-width: 0; }
.tr-q span { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.tr-mag { width: 11px; height: 11px; flex-shrink: 0; fill: none; stroke: currentColor; stroke-width: 2.2; stroke-linecap: round; }
.tr-chips { display: flex; flex-wrap: wrap; gap: 6px; margin: 7px 0 0 23px; }
.tr-chip { font-size: 11px; padding: 2px 7px; border-radius: 5px; background: var(--bg-2, #f3f4f6); color: var(--ink-2); }
.tr-chip b { color: var(--ink); font-weight: 600; }
.tr-chip.used { background: var(--accent-soft); color: var(--accent-d); }
.tr-chip.used b { color: var(--accent-d); }
.tr-kept { margin: 2px 0 6px; }
.tr-toggle { display: flex; align-items: center; gap: 5px; background: none; border: 0; padding: 0; cursor: pointer; font: inherit; font-size: 11px; color: var(--ink-3); }
.tr-toggle:hover { color: var(--ink-2); }
.tr-chev, .tr-spark { width: 11px; height: 11px; fill: none; stroke: currentColor; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }

/* Checks: staged progress card + measured metric rows */
.card.prog .step { padding: 6px 0; }
.prog-line { display: flex; align-items: center; justify-content: space-between; margin-top: 8px; font-size: 11px; color: var(--ink-3); }
.met-row { display: flex; align-items: center; gap: 8px; padding-top: 6px; font-size: 11.5px; }
.met-l { flex: 0 0 46%; min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; color: var(--ink-2); }
.met-bar { flex: 1; margin-top: 0; }
.met-v { width: 24px; text-align: right; font-weight: 600; color: var(--ink-2); font-size: 11px; }
.met-n { font-size: 10.5px; color: var(--ink-3); margin: 1px 0 2px; line-height: 1.4; }
#head {
  display: flex; align-items: center; gap: 8px; padding: 10px 12px; flex-shrink: 0;
  background: #ffffff; border-bottom: 1px solid var(--line);
}
#head img { width: 20px; height: auto; }
#head b { font-size: 13.5px; letter-spacing: -0.01em; }
#head .mode { color: var(--ink-3); font-size: 11px; font-weight: 600; }
#headSlot { margin-left: auto; display: flex; align-items: center; gap: 1px; }
#langBtn { border: 1px solid var(--line-2); background: #fff;
  border-radius: 999px; padding: 3px 9px; font: 700 10px inherit; color: var(--ink-2);
  cursor: pointer; letter-spacing: 0.04em;
}
#langBtn:hover { border-color: var(--accent); color: var(--accent-d); }
#body { flex: 1; overflow-y: auto; padding: 14px 12px 20px; display: flex; flex-direction: column; position: relative; }
#body::-webkit-scrollbar { width: 8px; }
#body::-webkit-scrollbar-thumb { background: var(--line-2); border-radius: 99px; }

/* ---------- type ---------- */
h2.p-title { font: 600 15px/1.3 inherit; letter-spacing: -0.015em; margin-bottom: 4px; }
p.p-hint { color: var(--ink-2); font-size: 12px; line-height: 1.5; margin-bottom: 12px; }
.p-note { color: var(--ink-3); font-size: 11px; margin-top: 10px; line-height: 1.45; }

/* ---------- cards ---------- */
.card {
  background: var(--card); border: 1px solid var(--line); border-radius: var(--r);
  padding: 11px 12px; box-shadow: var(--shadow); margin-bottom: 9px;
}
.card.tight { padding: 9px 10px; }
.card-h { display: flex; align-items: center; gap: 7px; margin-bottom: 6px; }
.card-t { font-weight: 600; font-size: 12.5px; letter-spacing: -0.01em; flex: 1; min-width: 0; }

/* ---------- tabs (Grammar | Consistency, like the web) ---------- */
.tabs { display: flex; gap: 2px; border-bottom: 1px solid var(--line); margin-bottom: 11px; }
.tab {
  border: 0; background: transparent; cursor: pointer; padding: 7px 10px 8px;
  font: 600 12.5px inherit; color: var(--ink-2); border-bottom: 2px solid transparent;
  margin-bottom: -1px;
}
.tab:hover { color: var(--ink); }
.tab.on { color: var(--accent-d); border-bottom-color: var(--accent); }

/* ---------- count banner ---------- */
.count-row { display: flex; align-items: center; gap: 10px; }
.count {
  width: 34px; height: 34px; border-radius: 50%; background: var(--danger); color: #fff;
  font: 700 13px inherit; display: flex; align-items: center; justify-content: center; flex-shrink: 0;
}
.count.ok { background: var(--ok); }
.count-t { font-size: 12.5px; line-height: 1.4; color: var(--ink); flex: 1; }

/* ---------- actions ---------- */
.grid { display: grid; grid-template-columns: 1fr 1fr; gap: 7px; }
.act {
  padding: 10px 8px; border: 1px solid var(--line); border-radius: 10px; cursor: pointer;
  background: #fff; font: 600 12px inherit; color: var(--ink); text-align: center;
  line-height: 1.3; box-shadow: var(--shadow); transition: all 0.15s ease;
}
.act:hover { border-color: var(--accent); color: var(--accent-d); background: var(--accent-soft); }
.act.wide { grid-column: span 2; text-align: left; }

.row { display: flex; gap: 7px; margin-top: 10px; flex-wrap: wrap; }
.row > button { flex: 1 1 92px; padding: 9px 10px; border: 0; border-radius: 10px; cursor: pointer; font: 600 12px inherit; }
.primary { background: var(--accent-d); color: #fff; }
.primary:hover { background: var(--accent); }
.ghost { background: var(--bg); color: var(--ink-2); border: 1px solid var(--line) !important; }
.ghost:hover { background: #f3f4f6; color: var(--ink); }
.mini {
  border: 1px solid var(--line-2); background: #fff; border-radius: 8px;
  padding: 5px 9px; font: 600 11px inherit; color: var(--ink-2); cursor: pointer;
}
.mini:hover { border-color: var(--accent); color: var(--accent-d); }
.mini.on { background: var(--accent-d); border-color: var(--accent-d); color: #fff; }
button:disabled { opacity: 0.45; cursor: default; }

/* ---------- inputs ---------- */
textarea, input[type="text"], select {
  width: 100%; border: 1px solid var(--line-2); border-radius: 10px; padding: 9px 10px;
  font: 400 12.5px/1.5 inherit; color: var(--ink); background: #fff; resize: vertical;
}
textarea:focus, input:focus, select:focus { outline: 0; border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-soft); }
label.fld { display: block; font: 600 10.5px inherit; color: var(--ink-3); text-transform: uppercase; letter-spacing: 0.06em; margin: 8px 0 4px; }
.two { display: flex; gap: 7px; }
.two > div { flex: 1; min-width: 0; }
label.ck { display: flex; align-items: center; gap: 8px; font-size: 12.5px; padding: 6px 0; cursor: pointer; color: var(--ink); }
label.ck input { width: 15px; height: 15px; accent-color: var(--accent-d); }

/* ---------- composer (the web chat bar) ---------- */
.composer {
  position: sticky; bottom: 0; background: #fff; border: 1px solid var(--line);
  border-radius: 14px; padding: 9px 10px; box-shadow: 0 4px 16px -6px rgba(17, 24, 39, 0.12);
  margin-top: auto;
}
.composer textarea { border: 0; padding: 2px 2px 6px; border-radius: 0; box-shadow: none !important; }
.comp-row { display: flex; align-items: center; gap: 6px; }
.pill {
  border: 1px solid var(--line-2); background: #fff; border-radius: 999px;
  padding: 4px 11px; font: 600 11px inherit; color: var(--ink-2); cursor: pointer;
}
.pill.on { background: var(--accent-d); border-color: var(--accent-d); color: #fff; }
.pill-sel {
  width: auto; border-radius: 999px; padding: 4px 8px; font: 600 11px inherit; color: var(--ink-2);
}
.send {
  margin-left: auto; width: 30px; height: 30px; border-radius: 50%; border: 0; cursor: pointer;
  background: var(--accent-d); color: #fff; font-size: 14px; flex-shrink: 0;
  display: flex; align-items: center; justify-content: center;
}
.send:hover { background: var(--accent); }

/* ---------- chips + status ---------- */
.chip {
  display: inline-flex; align-items: center; gap: 4px; font: 600 10.5px inherit;
  padding: 3px 8px; border-radius: 999px; background: var(--accent-soft);
  color: var(--accent-d); border: 1px solid var(--accent-line); margin: 0 4px 4px 0;
}
.chip.n { background: var(--bg); color: var(--ink-2); border-color: var(--line); }
.chip.hi { background: #fef2f2; color: var(--danger); border-color: #fecaca; }
.chip.md { background: #fffbeb; color: var(--warn); border-color: #fde68a; }
.chip.ok { background: #f0fdf4; color: var(--ok); border-color: #bbf7d0; }
.status { color: var(--accent-d); font-size: 12px; min-height: 16px; margin: 10px 0; line-height: 1.45; }
.status.err { color: var(--danger); }
.spin {
  display: inline-block; width: 11px; height: 11px; border: 2px solid var(--accent-line);
  border-top-color: var(--accent-d); border-radius: 50%; animation: sp 0.7s linear infinite; vertical-align: -1px;
}
@keyframes sp { to { transform: rotate(360deg); } }
.fade { animation: fade 0.22s ease both; }
@keyframes fade { from { opacity: 0; transform: translateY(4px); } }

/* ---------- diff + quotes ---------- */
.diff { font-size: 12.5px; line-height: 1.55; }
.diff .was { color: var(--danger); text-decoration: line-through; text-decoration-color: rgba(185, 28, 28, 0.5); background: #fef2f2; border-radius: 3px; padding: 0 2px; }
.diff .now { color: var(--ink); background: #f0fdf4; border-radius: 3px; padding: 0 2px; }
.quote {
  border-left: 2px solid var(--line-2); padding-left: 9px; color: var(--ink-2);
  font-size: 12px; line-height: 1.5; margin: 6px 0;
}
.lbl { font: 700 9.5px inherit; letter-spacing: 0.07em; text-transform: uppercase; color: var(--ink-3); margin-bottom: 3px; }
.out {
  background: var(--card); border: 1px solid var(--line); border-radius: var(--r);
  padding: 11px 12px; white-space: pre-wrap; line-height: 1.6; margin-top: 10px;
  box-shadow: var(--shadow); font-size: 12.5px;
}

/* ---------- messages ---------- */
.msg { margin-bottom: 9px; font-size: 12.5px; line-height: 1.6; }
.msg.me { background: var(--accent-soft); border: 1px solid var(--accent-line); border-radius: 12px 12px 4px 12px; padding: 9px 11px; margin-left: 18px; }
.msg.ai { background: #fff; border: 1px solid var(--line); border-radius: 12px 12px 12px 4px; padding: 10px 11px; box-shadow: var(--shadow); white-space: pre-wrap; }

/* ---------- steps ---------- */
.step { display: flex; gap: 9px; align-items: flex-start; padding: 9px 0; border-bottom: 1px solid var(--line); }
.step:last-child { border-bottom: 0; }
.step-n {
  width: 19px; height: 19px; border-radius: 50%; background: var(--bg); border: 1px solid var(--line);
  color: var(--ink-2); font: 700 10px inherit; display: flex; align-items: center;
  justify-content: center; flex-shrink: 0; margin-top: 1px;
}
.step.done .step-n { background: var(--accent-d); border-color: var(--accent-d); color: #fff; }
.step.now .step-n { background: var(--accent-soft); border-color: var(--accent); color: var(--accent-d); }
.step-t { flex: 1; min-width: 0; font-size: 12px; line-height: 1.45; }
.step-s { color: var(--ink-3); font-size: 10.5px; margin-top: 2px; }

/* ---------- score dial ---------- */
.score { display: flex; align-items: center; gap: 12px; }
.score b { font: 600 27px inherit; letter-spacing: -0.03em; color: var(--accent-d); }
.bar { height: 6px; border-radius: 99px; background: var(--line); overflow: hidden; margin-top: 7px; }
.bar > i { display: block; height: 100%; border-radius: 99px; background: var(--accent); }

/* ---------- composer: chips, control row, "+" menu ---------- */
.hide { display: none; }
.chips { display: flex; flex-wrap: wrap; gap: 4px; }
.chips:not(:empty) { margin-bottom: 6px; }
.ctx-chip {
  display: inline-flex; align-items: center; gap: 3px; max-width: 100%;
  font: 500 10.5px inherit; padding: 3px 4px 3px 8px; border-radius: 999px;
  background: #f3f4f6; color: var(--ink-2); overflow: hidden;
}
.ctx-chip.q { background: var(--accent-soft); color: var(--accent-d); }
.ctx-chip.s { background: #eef2ff; color: #4338ca; }
.ctx-chip.c { background: #fff7ed; color: #c2410c; }
.ctx-chip.e { background: #fef2f2; color: var(--danger); }
.ctx-chip button {
  border: 0; background: none; cursor: pointer; color: inherit;
  font-size: 12px; line-height: 1; padding: 0 3px; opacity: 0.6;
}
.ctx-chip button:hover { opacity: 1; }

.comp-row { display: flex; align-items: center; gap: 3px; padding-top: 5px; }
.icon-btn {
  width: 27px; height: 27px; flex-shrink: 0; border: 0; background: none; cursor: pointer;
  border-radius: 999px; color: var(--ink-2); font: 400 17px/1 inherit;
  display: flex; align-items: center; justify-content: center; position: relative;
}
.icon-btn svg { width: 15px; height: 15px; }
.icon-btn:hover { background: #f3f4f6; color: var(--ink); }
/* The active tier rides on the "+" button, so the row never spends a slot on it */
#cpPlus::after {
  content: attr(data-tier); position: absolute; bottom: -3px; left: 50%; transform: translateX(-50%);
  font: 700 7px inherit; letter-spacing: 0.03em; text-transform: uppercase; color: var(--accent-d);
}
.menu-wrap { position: relative; flex-shrink: 0; }

/* Chat | Cowork switch — gray track, white active pill, teal dot on Cowork */
.seg { display: inline-flex; background: #f3f4f6; border-radius: 999px; padding: 2px; flex-shrink: 0; }
.seg button {
  border: 0; background: transparent; cursor: pointer; padding: 4px 11px; border-radius: 999px;
  font: 600 11.5px inherit; color: var(--ink-3); display: inline-flex; align-items: center; gap: 5px;
}
.seg button.on { background: #fff; color: var(--ink); box-shadow: var(--shadow); }
.seg button .dot { display: none; width: 5px; height: 5px; border-radius: 50%; background: var(--accent); }
.seg button.on .dot { display: inline-block; }
.seg button[data-mode="cowork"].on { color: var(--accent-d); }

.tier-pill {
  border: 1px solid var(--line-2); background: #fff; cursor: pointer; flex-shrink: 0;
  border-radius: 999px; padding: 4px 9px; font: 600 11px inherit; color: var(--ink-2);
}
.tier-pill:hover { border-color: var(--accent); color: var(--accent-d); }
.tier-pill .ch { color: var(--ink-3); }
.composer.cowork { background: #f6fefc; border-color: var(--accent-line); }

/* Header icon row (history · new · dock · close) */
.hdr-ico {
  width: 26px; height: 26px; border: 0; background: none; cursor: pointer; border-radius: 999px;
  color: var(--ink-2); display: flex; align-items: center; justify-content: center; flex-shrink: 0;
}
.hdr-ico svg { width: 15px; height: 15px; fill: none; stroke: currentColor; stroke-width: 1.7; }
.hdr-ico:hover { background: var(--bg); color: var(--ink); }
.hdr-ico.on { background: var(--bg); color: var(--accent-d); }

/* Centered empty state, same copy and placement as the web panel */
.empty-mid {
  flex: 1; display: flex; align-items: center; justify-content: center; text-align: center;
  color: var(--ink-3); font-size: 12.5px; line-height: 1.65; padding: 30px 18px;
}

/* Cowork context strip: what it is working on, and how far it has got */
.ctx-strip { display: flex; flex-wrap: wrap; gap: 5px; margin: 6px 0 2px; }
.ctx-pill {
  display: inline-flex; align-items: center; gap: 5px; max-width: 100%; overflow: hidden;
  border-radius: 999px; padding: 4px 10px; font: 500 11px inherit;
  background: #f3f4f6; color: var(--ink-2); white-space: nowrap;
}
.ctx-pill.teal { background: var(--accent-soft); color: var(--accent-d); }
.ctx-pill b { font-weight: 600; overflow: hidden; text-overflow: ellipsis; }

/* "All Chats" sheet — a card that drops under the header, like the web overlay */
.sheet {
  position: absolute; left: 8px; right: 8px; top: 44px; z-index: 40; background: #fff;
  border: 1px solid var(--line); border-radius: 14px; box-shadow: 0 14px 34px rgba(17, 24, 39, 0.16);
  padding: 10px; max-height: 68vh; display: flex; flex-direction: column;
}
.sheet-h { display: flex; align-items: center; gap: 7px; margin-bottom: 8px; }
.sheet-t { font: 600 13px inherit; flex: 1; }
.sheet-list { overflow-y: auto; }
.chat-row {
  display: flex; align-items: center; gap: 8px; width: 100%; text-align: left; cursor: pointer;
  border: 0; background: none; padding: 9px 4px; font: 400 12.5px inherit; color: var(--ink);
  border-bottom: 1px solid var(--line);
}
.chat-row:last-child { border-bottom: 0; }
.chat-row:hover { color: var(--accent-d); }
.chat-row span { flex: 1; min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.chat-row i { font-style: normal; color: var(--ink-3); font-size: 10.5px; flex-shrink: 0; }

/* Follow-up suggestions the answer offers */
.opts { display: flex; flex-direction: column; gap: 5px; margin: 2px 0 8px; }
.opt {
  border: 1px solid var(--line); background: #fff; border-radius: 10px; cursor: pointer;
  padding: 8px 10px; font: 500 12px inherit; color: var(--ink); text-align: left;
  box-shadow: var(--shadow);
}
.opt:hover { border-color: var(--accent); color: var(--accent-d); background: var(--accent-soft); }

/* Tables inside an answer — the web chat's table view, scrollable in 320px */
.msg.ai .tbl { overflow-x: auto; margin: 7px 0; }
.msg.ai table { border-collapse: collapse; font-size: 11.5px; min-width: 100%; }
.msg.ai th, .msg.ai td { border: 1px solid var(--line); padding: 5px 7px; text-align: left; vertical-align: top; }
.msg.ai th { background: var(--bg); font-weight: 600; white-space: nowrap; }

.pop {
  position: absolute; left: 0; bottom: 34px; z-index: 30; width: 252px;
  max-height: 320px; overflow-y: auto; background: #fff; border: 1px solid var(--line);
  border-radius: 12px; box-shadow: 0 12px 28px rgba(17, 24, 39, 0.14); padding: 5px;
}
.mrow {
  display: flex; align-items: center; gap: 7px; width: 100%; text-align: left; cursor: pointer;
  border: 0; background: none; padding: 7px 8px; border-radius: 8px;
  font: 400 12px inherit; color: var(--ink);
}
.mrow:hover { background: var(--bg); }
.mrow .mi { color: var(--ink-3); font-size: 11px; }
.mrow .ml { flex: 1; min-width: 0; }
.mrow .ch, .mrow .cnt { color: var(--ink-3); font-size: 11px; }
.mrow .cnt { background: var(--accent-soft); color: var(--accent-d); border-radius: 999px; padding: 1px 6px; font-weight: 600; }
.mrow .tick { color: var(--accent); font-size: 12px; }
.mrow.tier .hint { font-size: 10px; color: var(--ink-3); }
.mrow.tier.on { background: var(--accent-soft); }
.mrow.tier.on .ml { color: var(--accent-d); font-weight: 600; }
.mrow.src { align-items: flex-start; }
.mrow.src .st { display: block; font-size: 11.5px; line-height: 1.4; }
.mrow.src .sm { display: block; font-size: 10px; color: var(--ink-3); }
.msep { border-top: 1px solid var(--line); margin-top: 4px; padding-top: 3px; }
.mcap { font: 600 9.5px inherit; letter-spacing: 0.04em; text-transform: uppercase; color: var(--ink-3); padding: 4px 8px 2px; }
.mempty { font-size: 11px; color: var(--ink-3); text-align: center; padding: 14px 8px; }
.mhead { display: flex; align-items: center; gap: 5px; padding: 2px 2px 6px; }
.mhead .back { border: 0; background: none; cursor: pointer; color: var(--ink-2); font-size: 16px; padding: 0 4px; }
.mhead input { flex: 1; min-width: 0; padding: 5px 8px; font-size: 11.5px; }
.mlist { max-height: 220px; overflow-y: auto; }
.perm { display: flex; align-items: center; justify-content: space-between; padding: 4px 8px; font-size: 11.5px; color: var(--ink-2); }
.seg3 { display: inline-flex; background: #f3f4f6; border-radius: 7px; padding: 2px; }
.seg3 button {
  border: 0; background: none; cursor: pointer; padding: 2px 6px; border-radius: 5px;
  font: 600 10px inherit; color: var(--ink-3);
}
.seg3 button.on { background: #fff; color: var(--ink-2); box-shadow: var(--shadow); }
.seg3 button.on.on { background: #fff; }
.seg3 button.ask.on { background: #fef3c7; color: #b45309; }
.seg3 button.on:last-child.on { background: var(--accent-soft); color: var(--accent-d); }
.used { font-size: 10px; color: var(--ink-3); margin: 2px 0 0; line-height: 1.45; }

.link-btn {
  border: 0; background: none; padding: 4px 0 0; cursor: pointer;
  font: 500 11.5px inherit; color: var(--ink-3); text-decoration: underline;
}
.link-btn:hover { color: var(--accent-d); }

/* ---------- AI Assistant: tier bar, outline, settings ---------- */
.tier-bar { padding-bottom: 10px; border-bottom: 1px solid var(--line); margin-bottom: 2px; }
.tier-bar select { border-radius: 10px; font-weight: 600; }

.outline { margin-bottom: 12px; }
.ol-row {
  display: flex; align-items: center; gap: 7px; cursor: pointer; padding: 7px 6px;
  border-radius: 9px; font-size: 12.5px; color: var(--ink);
}
.ol-row:hover { background: var(--bg); }
.ol-row.on { background: var(--accent-soft); color: var(--accent-d); }
.ol-tick {
  width: 17px; height: 17px; border-radius: 50%; flex-shrink: 0; font-size: 10px;
  display: flex; align-items: center; justify-content: center;
  background: #f3f4f6; color: var(--ink-3);
}
.ol-tick.done { background: #ccfbf1; color: var(--accent-d); }
.ol-t { flex: 1; min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; font-weight: 500; }
.ol-w { color: var(--ink-3); font-size: 10.5px; flex-shrink: 0; }
.ol-c { color: var(--ink-3); flex-shrink: 0; }
.ol-form {
  background: var(--bg); border: 1px solid var(--line); border-radius: 11px;
  padding: 9px 10px 10px; margin: 3px 0 8px;
}

.tg-row { display: flex; align-items: center; gap: 10px; padding: 8px 0; border-bottom: 1px solid var(--line); }
.tg-t { flex: 1; min-width: 0; font-size: 12.5px; font-weight: 500; }
.tg-h { font-size: 10.5px; color: var(--ink-3); font-weight: 400; margin-top: 1px; }
.tg {
  width: 38px; height: 21px; border-radius: 999px; border: 0; cursor: pointer;
  background: #e5e7eb; flex-shrink: 0; position: relative; padding: 0;
}
.tg i {
  position: absolute; top: 2px; left: 2px; width: 17px; height: 17px; border-radius: 50%;
  background: #fff; transition: left 0.15s ease;
}
.tg.on { background: var(--ink); }
.tg.on i { left: 19px; }

.f-row { display: flex; align-items: center; gap: 8px; margin: 6px 0; flex-wrap: wrap; }
.f-row > span { font-size: 12px; color: var(--ink-2); }
.seg-f { display: inline-flex; gap: 3px; }
.seg-f button {
  border: 0; background: #f3f4f6; border-radius: 7px; cursor: pointer;
  padding: 4px 9px; font: 600 11px inherit; color: var(--ink-2);
}
.seg-f button.on { background: var(--accent-soft); color: var(--accent-d); }

/* ---------- Write: header row, accordion sections, chip row ---------- */
.wr-head { display: flex; align-items: center; gap: 6px; margin-bottom: 8px; }

.acc { border: 1px solid var(--line); border-radius: var(--r); background: var(--card); margin-bottom: 8px; box-shadow: var(--shadow); }
.acc.on { border-color: var(--accent-line); }
.acc-h {
  display: flex; align-items: center; gap: 8px; width: 100%; cursor: pointer; border: 0;
  background: none; padding: 11px 11px; font: 600 12.5px inherit; color: var(--ink); text-align: left;
}
.acc-i { color: var(--accent-d); font-size: 12px; width: 13px; text-align: center; }
.acc-t { flex: 1; min-width: 0; letter-spacing: -0.01em; }
.acc-c { color: var(--ink-3); }
.acc-b { padding: 0 11px 11px; }

/* "N titles are not real headings" bar, above the outline */
.fix-bar { display: flex; align-items: center; gap: 6px; flex-wrap: wrap; padding-bottom: 9px; }
.fix-bar .chip { margin: 0; }
.dot-w { width: 6px; height: 6px; border-radius: 50%; background: var(--warn); flex-shrink: 0; }

/* Quick actions: one wrapping chip row instead of a six-box grid */
.qrow { display: flex; flex-wrap: wrap; gap: 5px; }
.qchip {
  border: 1px solid var(--line); background: #fff; border-radius: 999px; cursor: pointer;
  padding: 6px 11px; font: 500 11.5px inherit; color: var(--ink-2); box-shadow: var(--shadow);
}
.qchip:hover { border-color: var(--accent); color: var(--accent-d); background: var(--accent-soft); }

/* ---------- Cite Sources panel (web "Cite Sources" modal) ---------- */
.cite-panel { padding: 11px 11px 12px; }
.cite-head { display: flex; align-items: center; gap: 7px; padding-bottom: 9px; border-bottom: 1px solid var(--line); margin-bottom: 10px; }
.cite-t { font: 600 13.5px inherit; letter-spacing: -0.01em; color: var(--ink); flex: 1; }
.cite-t::first-letter { color: var(--accent-d); }
.chips-row { display: flex; flex-wrap: wrap; gap: 5px; margin-bottom: 4px; }
.chips-row .pill.on { background: var(--accent-soft); border-color: var(--accent-line); color: var(--accent-d); }

/* ---------- page header row (title + Advanced search) ---------- */
.page-h { display: flex; align-items: baseline; gap: 8px; margin-bottom: 9px; }
.link-btn.adv { color: var(--accent-d); text-decoration: none; font-weight: 600; margin-left: auto; padding: 0; }
.link-btn.adv:hover { text-decoration: underline; }

/* ---------- channel tabs (Papers | Reports | Article) ---------- */
.tabs-row { display: flex; align-items: center; gap: 6px; margin: 9px 0 4px; }
.src-tabs { display: inline-flex; background: #f3f4f6; border-radius: 10px; padding: 3px; gap: 2px; }
.src-tab {
  border: 0; background: transparent; cursor: pointer; border-radius: 8px; padding: 5px 8px;
  font: 600 11.5px inherit; color: var(--ink-2); display: inline-flex; align-items: center; gap: 4px;
}
.src-tab .ti { font-size: 11px; }
.src-tab.on { background: #fff; color: var(--accent-d); box-shadow: var(--shadow); }
.tabs-row > .mini { margin-left: auto; }

/* ---------- result list head (count · Sort · Refine) ---------- */
.count-line {
  display: flex; align-items: center; gap: 6px; font-size: 11.5px; color: var(--ink-2);
  border-top: 1px solid var(--line); padding-top: 9px; margin: 4px 0 6px;
}
.count-line b { color: var(--ink); font-weight: 600; }
.sort-l { color: var(--ink-3); }
.refine { display: flex; align-items: center; gap: 7px; margin-bottom: 8px; }

/* ---------- account links (Paperpal-style list) ---------- */
.acct-link {
  display: flex; align-items: center; gap: 6px; width: 100%; text-align: left; cursor: pointer;
  border: 0; background: none; padding: 8px 2px; font: 500 12.5px inherit; color: var(--accent-d);
  border-bottom: 1px solid var(--line);
}
.acct-link:last-child { border-bottom: 0; }
.acct-link:hover { text-decoration: underline; }
.acct-link.warn { color: var(--danger); }
.acct-link i { font-style: normal; margin-left: auto; color: var(--ink-3); font-size: 11px; }

/* ---------- search bar + recent (web Find Sources anatomy) ---------- */
.searchbar { display: flex; gap: 7px; }
.searchbar input { flex: 1; min-width: 0; border-radius: 999px; padding-left: 13px; }
.sb-btn { border: 0; border-radius: 999px; padding: 8px 15px; font: 600 12px inherit; cursor: pointer; flex-shrink: 0; }
.recent-row {
  display: flex; align-items: center; gap: 8px; width: 100%; text-align: left; cursor: pointer;
  background: #fff; border: 1px solid var(--line); border-radius: 10px; padding: 9px 11px;
  font: 400 12.5px inherit; color: var(--ink); margin-bottom: 6px; box-shadow: var(--shadow);
}
.recent-row:hover { border-color: var(--accent); }
.recent-row span { flex: 1; min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.recent-row i { color: var(--ink-3); font-style: normal; font-size: 15px; }

/* ---------- kicker + badges (web result card anatomy) ---------- */
.kicker-row { display: flex; align-items: center; gap: 4px; margin-bottom: 5px; flex-wrap: wrap; }
.kicker { font: 600 10px inherit; color: var(--ink-3); }
.badge {
  font: 700 8.5px inherit; letter-spacing: 0.05em; text-transform: uppercase;
  padding: 3px 7px; border-radius: 999px; background: #f3f4f6; color: var(--ink-2);
}
.badge.oa { background: #fff7ed; color: #c2410c; }
.badge.q { background: var(--accent-soft); color: var(--accent-d); }
.venue { color: var(--accent-d); font-weight: 500; }
.abs { border-left: 2px solid var(--line); padding-left: 9px; margin-top: 7px; font-size: 11.5px; color: var(--ink-2); line-height: 1.5; }
.see-more { border: 0; background: none; color: var(--ink); font: 700 11px inherit; cursor: pointer; padding: 0; }
.see-more:hover { color: var(--accent-d); }

/* ---------- source result ---------- */
.src-t { font-weight: 600; font-size: 12.5px; line-height: 1.4; letter-spacing: -0.01em; }
.src-m { color: var(--ink-3); font-size: 11px; margin-top: 3px; line-height: 1.45; }
.src-ref { font-size: 11.5px; color: var(--ink-2); line-height: 1.5; margin-top: 7px; }
a { color: var(--accent-d); text-decoration: none; }
a:hover { text-decoration: underline; }

/* ---------- account tier pill + credit rows ---------- */
.plan-pill {
  border: 1px solid var(--line-2); background: #fff; border-radius: 999px; cursor: pointer;
  padding: 3px 9px; font: 700 10px inherit; color: var(--ink-2); letter-spacing: 0.04em; text-transform: uppercase;
}
.plan-pill.plus, .plan-pill.pro { background: var(--accent-soft); border-color: var(--accent-line); color: var(--accent-d); }
.plan-pill:hover { border-color: var(--accent); color: var(--accent-d); }
.u-row { padding: 7px 0; border-bottom: 1px solid var(--line); }
.u-row:last-of-type { border-bottom: 0; }
.u-l { display: flex; align-items: baseline; justify-content: space-between; gap: 8px; font-size: 12px; color: var(--ink-2); }
.u-l b { font-weight: 600; color: var(--ink); font-size: 11.5px; white-space: nowrap; }
.u-row .bar { margin-top: 5px; height: 5px; }
.u-row.low .bar > i { background: var(--warn); }
.u-row.out .bar > i { background: var(--danger); }
.u-row.out .u-l b { color: var(--danger); }
.u-p { font-size: 10px; color: var(--ink-3); margin-top: 3px; }
.status-act { margin-left: 6px; vertical-align: middle; }