:root {
  --bg: #1f1e1d;
  --bg-2: #262624;
  --bg-3: #2f2e2c;
  --panel: #1a1918;
  --border: #3a3937;
  --text: #e8e6e3;
  --text-dim: #a7a39c;
  --text-faint: #6f6b64;
  --accent: #d97757;
  --accent-soft: #d9775722;
  --radius: 14px;
  --serif: "Georgia", "Times New Roman", serif;
  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

* { box-sizing: border-box; }
html, body { height: 100%; margin: 0; }
body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  font-size: 15px;
  line-height: 1.5;
}

.app { display: flex; height: 100vh; overflow: hidden; }

/* ── sidebar ─────────────────────────────────────────── */
.sidebar {
  width: 290px; flex-shrink: 0;
  background: var(--panel);
  border-right: 1px solid var(--border);
  display: flex; flex-direction: column;
  padding: 18px 14px;
}
.brand { display: flex; align-items: center; gap: 9px; padding: 4px 6px 18px; }
.brand-mark { color: var(--accent); font-size: 18px; }
.brand-name { font-family: var(--serif); font-size: 19px; letter-spacing: .2px; }

.new-btn {
  width: 100%; text-align: left;
  background: var(--bg-3); color: var(--text);
  border: 1px solid var(--border); border-radius: 10px;
  padding: 9px 12px; cursor: pointer; font-size: 14px;
  transition: background .15s;
}
.new-btn:hover { background: var(--bg-2); }

.history-head {
  display: flex; justify-content: space-between; align-items: center;
  color: var(--text-faint); font-size: 12px; text-transform: uppercase;
  letter-spacing: .8px; margin: 22px 6px 8px;
}
.history { flex: 1; overflow-y: auto; margin: 0 -4px; padding: 0 4px; }
.hist-item {
  padding: 9px 10px; border-radius: 9px; cursor: pointer;
  margin-bottom: 2px; transition: background .12s;
}
.hist-item:hover { background: var(--bg-2); }
.hist-q { font-size: 13.5px; color: var(--text); overflow: hidden;
  text-overflow: ellipsis; white-space: nowrap; }
.hist-meta { font-size: 11px; color: var(--text-faint); margin-top: 3px;
  display: flex; gap: 7px; align-items: center; }
.tag {
  font-size: 10px; text-transform: uppercase; letter-spacing: .5px;
  padding: 1px 6px; border-radius: 5px; background: var(--bg-3);
  color: var(--text-dim);
}
.tag.ask { background: var(--accent-soft); color: var(--accent); }
.tag.who { text-transform: none; letter-spacing: 0; background: var(--bg-2); color: var(--text-dim); }

.history-actions { display: flex; gap: 8px; align-items: center; }
.scope-btn {
  background: var(--bg-3); border: none; color: var(--text-dim); cursor: pointer;
  font-size: 10px; text-transform: uppercase; letter-spacing: .5px;
  padding: 2px 8px; border-radius: 6px;
}
.scope-btn:hover { color: var(--text); }
.scope-btn.active { background: var(--accent-soft); color: var(--accent); }

.settings-btn, .icon-btn {
  background: none; border: none; color: var(--text-faint);
  cursor: pointer; font-size: 13px; text-align: left; padding: 10px 6px 2px;
}
.icon-btn { font-size: 14px; padding: 0; }
.settings-btn:hover, .icon-btn:hover { color: var(--text); }

/* ── main ────────────────────────────────────────────── */
.main { flex: 1; overflow-y: auto; display: flex; justify-content: center; }
.center { width: 100%; max-width: 760px; padding: 0 26px 80px; }
.greeting {
  font-family: var(--serif); font-weight: 400; font-size: 30px;
  text-align: center; margin: 16vh 0 26px; color: var(--text);
}
.center.has-results .greeting { margin: 40px 0 22px; font-size: 24px; }
.corpus { text-align: center; color: var(--text-faint); font-size: 13px;
  letter-spacing: .3px; margin: -16px 0 28px; }

/* ── composer ────────────────────────────────────────── */
.composer {
  background: var(--bg-2); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 12px 14px;
  box-shadow: 0 6px 24px #0003;
}
.q {
  width: 100%; resize: none; border: none; outline: none;
  background: transparent; color: var(--text); font-family: var(--sans);
  font-size: 16px; line-height: 1.5; max-height: 240px; min-height: 28px;
}
.q::placeholder { color: var(--text-faint); }

.toolbar { display: flex; align-items: center; gap: 12px; margin-top: 10px; flex-wrap: wrap; }

/* segmented controls (Ask/Search + mode) — one shared, polished style */
.seg { display: inline-flex; background: var(--bg); border: 1px solid var(--border);
  border-radius: 10px; padding: 3px; gap: 2px; }
.seg-btn {
  border: none; background: none; color: var(--text-dim);
  padding: 6px 14px; border-radius: 7px; cursor: pointer;
  font-size: 13px; font-weight: 500; line-height: 1; letter-spacing: .2px;
  text-transform: capitalize; white-space: nowrap;
  transition: background .18s ease, color .18s ease, box-shadow .18s ease;
}
.seg-btn:hover { color: var(--text); }
.seg-btn:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
.seg-btn.active {
  background: var(--bg-3); color: var(--text);
  box-shadow: 0 1px 2px #00000055, inset 0 0 0 1px #ffffff0d;
}
/* the mode control reads as secondary to the primary Ask/Search choice */
.seg-ctl .seg { background: transparent; }
.seg-ctl .seg-btn { font-weight: 450; }

.params { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; flex: 1; }

.ctl { display: inline-flex; align-items: center; gap: 5px; }
.ctl label { font-size: 12px; color: var(--text-faint); }
select, input[type="number"], input[type="text"], input[type="password"] {
  background: var(--bg); color: var(--text);
  border: 1px solid var(--border); border-radius: 8px;
  padding: 5px 8px; font-size: 13px; font-family: var(--sans); outline: none;
}
select:focus, input:focus { border-color: var(--accent); }
input[type="number"] { width: 58px; }
.ctl.check { gap: 6px; }
.ctl.check input { accent-color: var(--accent); }

.submit {
  margin-left: auto; width: 38px; height: 38px; flex-shrink: 0;
  display: inline-flex; align-items: center; justify-content: center;
  border: none; border-radius: 10px; background: var(--accent); color: #fff;
  font-size: 18px; cursor: pointer;
  box-shadow: 0 2px 8px #d9775733;
  transition: filter .15s ease, transform .12s ease, box-shadow .15s ease;
}
.submit:hover { filter: brightness(1.07); box-shadow: 0 3px 12px #d9775744; }
.submit:active { transform: translateY(1px); }
.submit:disabled { opacity: .4; cursor: default; box-shadow: none; filter: none; }

.filters-wrap { margin-top: 10px; border-top: 1px solid var(--border); padding-top: 10px; }
.filters-toggle {
  background: none; border: none; color: var(--text-dim); cursor: pointer;
  font-size: 12.5px; padding: 0; letter-spacing: .3px;
}
.filters-toggle:hover { color: var(--text); }
.filters { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 10px 12px; margin-top: 12px; }
.filters.hidden, .hidden { display: none; }
.filters .ctl { flex-direction: column; align-items: stretch; gap: 4px; min-width: 0; }
.filters .ctl label { white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.filters select { width: 100%; min-width: 0; }
@media (max-width: 620px) { .filters { grid-template-columns: repeat(2, minmax(0, 1fr)); } }

/* ── status + results ────────────────────────────────── */
.status { text-align: center; color: var(--text-dim); font-size: 14px; margin: 22px 0; }
.status .err { color: #e08a6e; }
.dots::after { content: "·"; animation: dots 1.2s steps(4,end) infinite; }
@keyframes dots { 0%{content:"";} 25%{content:"·";} 50%{content:"··";} 75%{content:"···";} }

.results { margin-top: 22px; }

/* answer */
.answer { background: var(--bg-2); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 22px 24px; }
.answer h1, .answer h2, .answer h3 { font-family: var(--serif); font-weight: 400; line-height: 1.3; }
.answer h1 { font-size: 22px; margin: 4px 0 12px; }
.answer h2 { font-size: 18px; margin: 20px 0 8px; }
.answer h3 { font-size: 16px; margin: 16px 0 6px; color: var(--text-dim); }
.answer p { margin: 10px 0; }
.answer ul, .answer ol { margin: 10px 0; padding-left: 22px; }
.answer li { margin: 4px 0; }
.answer code { background: var(--bg); padding: 1px 5px; border-radius: 5px; font-size: 13px; }
.answer strong { color: #fff; }
.cite { color: var(--accent); text-decoration: none; font-weight: 600;
  font-size: 12px; vertical-align: super; padding: 0 1px; }
.cite:hover { text-decoration: underline; }

.meta-row { display: flex; gap: 10px; flex-wrap: wrap; align-items: center;
  margin: 14px 2px; font-size: 12px; color: var(--text-faint); }
.pill { background: var(--bg-3); border-radius: 20px; padding: 3px 10px; color: var(--text-dim); }
.pill.mock { background: #5a3d1a; color: #e7b169; }

.subq { font-size: 12.5px; color: var(--text-dim); margin: 4px 0; }
.subq code { color: var(--accent); }

/* sources / passages */
.section-title { font-size: 12px; text-transform: uppercase; letter-spacing: .8px;
  color: var(--text-faint); margin: 26px 2px 10px; }
.card {
  background: var(--bg-2); border: 1px solid var(--border);
  border-radius: 12px; padding: 14px 16px; margin-bottom: 10px;
}
.card-top { display: flex; justify-content: space-between; gap: 12px; align-items: baseline; }
.card-title { font-size: 14.5px; color: var(--text); }
.score { font-size: 12px; color: var(--accent); flex-shrink: 0; }
.card-meta { font-size: 12px; color: var(--text-faint); margin: 4px 0 8px; }
.card-text { font-size: 13.5px; color: var(--text-dim); line-height: 1.55; }
.card a.watch { display: inline-block; margin-top: 9px; font-size: 12.5px;
  color: var(--accent); text-decoration: none; }
.card a.watch:hover { text-decoration: underline; }
.src-n { color: var(--accent); font-weight: 600; margin-right: 6px; }

/* ── modal ───────────────────────────────────────────── */
.modal { position: fixed; inset: 0; background: #000a; display: flex;
  align-items: center; justify-content: center; z-index: 50; }
.modal.hidden { display: none; }   /* beats .modal's display:flex (defined later than .hidden) */
.modal-card { background: var(--bg-2); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 26px; width: 420px; max-width: 92vw; }
.modal-card h2 { font-family: var(--serif); font-weight: 400; margin: 0 0 18px; }
.modal-card label { display: block; font-size: 13px; color: var(--text-dim); margin-bottom: 14px; }
.modal-card input { width: 100%; margin-top: 5px; padding: 8px 10px; }
.muted { color: var(--text-faint); font-size: 12px; }
.modal-actions { display: flex; gap: 10px; margin-top: 8px; }
.submit-wide { flex: 1; background: var(--accent); color: #fff; border: none;
  border-radius: 9px; padding: 10px; cursor: pointer; font-size: 14px; }
.ghost { background: none; border: 1px solid var(--border); color: var(--text-dim);
  border-radius: 9px; padding: 10px 16px; cursor: pointer; }

/* ── analytics modal ─────────────────────────────────── */
.sidebar-foot { display: flex; gap: 4px; flex-wrap: wrap; }
.analytics-card { width: 560px; max-height: 86vh; overflow-y: auto; }
.analytics-card h3 { font-size: 12px; text-transform: uppercase; letter-spacing: .8px;
  color: var(--text-faint); margin: 20px 0 10px; }
.an-total { font-size: 14px; color: var(--text-dim); }
.an-total strong { color: var(--accent); font-size: 16px; }
.an-charts { display: flex; gap: 18px; flex-wrap: wrap; }
.an-chart { flex: 1; min-width: 220px; }
.an-pie { display: flex; gap: 14px; align-items: center; }
.an-legend { display: flex; flex-direction: column; gap: 5px; font-size: 12px; color: var(--text-dim); }
.an-leg { display: flex; align-items: center; gap: 6px; white-space: nowrap; }
.an-sw { width: 10px; height: 10px; border-radius: 3px; flex-shrink: 0; }
.an-table { display: flex; flex-direction: column; }
.an-row { display: grid; grid-template-columns: 1fr auto auto; gap: 14px;
  padding: 7px 4px; border-bottom: 1px solid var(--border); font-size: 13px; color: var(--text-dim); }
.an-row span:nth-child(2), .an-row span:nth-child(3) { text-align: right; font-variant-numeric: tabular-nums; }
.an-row.an-head { color: var(--text-faint); font-size: 11px; text-transform: uppercase;
  letter-spacing: .5px; border-bottom-color: var(--text-faint); }

::-webkit-scrollbar { width: 9px; }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 8px; }