:root {
  --bg: #faf6f0;
  --card: #ffffff;
  --ink: #2b2b33;
  --muted: #8a8578;
  --line: #eee7db;
  --teal: #2e7d6e;
  --teal-dark: #1f5c50;
  --teal-soft: #e3f0ed;
  --coral: #e8795a;
  --coral-soft: #fdeee8;
  --gold: #e3a72f;
  --radius: 14px;
  --shadow: 0 1px 3px rgba(60, 50, 30, 0.07), 0 6px 20px rgba(60, 50, 30, 0.05);
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
    "PingFang TC", "Noto Sans TC", "Microsoft JhengHei", sans-serif;
  font-size: 15.5px;
  line-height: 1.6;
}

/* ---------- header ---------- */
header {
  background: linear-gradient(135deg, var(--teal-dark), var(--teal) 70%, #3f9483);
  color: #fff;
  padding: 14px 20px;
}
.header-inner {
  max-width: 880px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}
.logo-dot {
  width: 34px; height: 34px; border-radius: 50%;
  background: radial-gradient(circle at 30% 30%, #ffb59d, var(--coral));
  flex: none;
  display: flex; align-items: center; justify-content: center;
  font-size: 17px;
}
header h1 { font-size: 17px; margin: 0; font-weight: 700; letter-spacing: 0.2px; }
header .sub { font-size: 12.5px; opacity: 0.85; margin-top: -2px; }
.header-spacer { flex: 1; }
.name-chip {
  background: rgba(255, 255, 255, 0.16);
  border: 1px solid rgba(255, 255, 255, 0.35);
  color: #fff;
  border-radius: 999px;
  padding: 4px 14px;
  font-size: 13px;
  cursor: pointer;
  transition: background 0.15s;
}
.name-chip:hover { background: rgba(255, 255, 255, 0.28); }

/* ---------- nav tabs ---------- */
nav {
  max-width: 880px;
  margin: 18px auto 0;
  padding: 0 16px;
  display: flex;
  gap: 8px;
  overflow-x: auto;
}
nav button {
  border: 1px solid var(--line);
  background: var(--card);
  color: var(--ink);
  border-radius: 999px;
  padding: 7px 16px;
  font-size: 14px;
  cursor: pointer;
  white-space: nowrap;
  font-family: inherit;
  transition: all 0.15s;
}
nav button:hover { border-color: var(--teal); color: var(--teal-dark); }
nav button.active {
  background: var(--teal);
  border-color: var(--teal);
  color: #fff;
  font-weight: 600;
}
nav button .cnt {
  background: rgba(0, 0, 0, 0.12);
  border-radius: 999px;
  font-size: 11.5px;
  padding: 1px 7px;
  margin-left: 5px;
}
nav button.active .cnt { background: rgba(255, 255, 255, 0.25); }

/* ---------- layout ---------- */
main { max-width: 880px; margin: 18px auto 80px; padding: 0 16px; }
.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 20px;
  margin-bottom: 16px;
}
.card h2 { margin: 0 0 6px; font-size: 17px; }
.hint { color: var(--muted); font-size: 13px; }

/* ---------- forms ---------- */
textarea, input[type="text"], input[type="password"], select {
  width: 100%;
  border: 1.5px solid var(--line);
  border-radius: 10px;
  padding: 10px 12px;
  font-family: inherit;
  font-size: 15px;
  background: #fffdfa;
  color: var(--ink);
}
textarea:focus, input:focus, select:focus {
  outline: none;
  border-color: var(--teal);
}
textarea { resize: vertical; min-height: 90px; }
select { width: auto; }

.btn {
  border: none;
  border-radius: 10px;
  padding: 9px 18px;
  font-size: 14.5px;
  font-family: inherit;
  font-weight: 600;
  cursor: pointer;
  background: var(--teal);
  color: #fff;
  transition: all 0.15s;
}
.btn:hover { background: var(--teal-dark); }
.btn:disabled { opacity: 0.5; cursor: default; }
.btn.secondary {
  background: var(--card);
  color: var(--teal-dark);
  border: 1.5px solid var(--teal);
}
.btn.secondary:hover { background: var(--teal-soft); }
.btn.danger { background: #fff; color: #b0402a; border: 1.5px solid #dfa08e; }
.btn.danger:hover { background: var(--coral-soft); }
.btn.small { padding: 4px 12px; font-size: 13px; border-radius: 8px; }

.row { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; }
.row.spread { justify-content: space-between; }
.mt { margin-top: 12px; }

label.check { display: inline-flex; gap: 7px; align-items: center; font-size: 13.5px; color: var(--muted); cursor: pointer; }

/* ---------- question rows ---------- */
.q-row {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 10px 12px;
  border-radius: 10px;
  cursor: pointer;
  transition: background 0.12s;
}
.q-row:hover { background: var(--teal-soft); }
.q-row .star {
  flex: none;
  border: none; background: none; cursor: pointer;
  font-size: 16px; line-height: 1.5;
  color: #cfc8b8;
  padding: 0;
  font-family: inherit;
}
.q-row .star.on { color: var(--gold); }
.q-row .star .n { font-size: 12px; margin-left: 2px; color: var(--muted); }
.q-row .q-text { flex: 1; }
.q-row .q-meta { color: var(--muted); font-size: 12px; margin-top: 1px; }
.badge {
  display: inline-block;
  font-size: 11px;
  border-radius: 6px;
  padding: 1px 7px;
  margin-left: 6px;
  vertical-align: 1px;
}
.badge.brief { background: var(--teal-soft); color: var(--teal-dark); }
.badge.branch { background: #f4efe4; color: #7a6c3f; }
.badge.new { background: var(--coral-soft); color: #b0402a; }

/* ---------- dependency org-chart ----------
   Horizontal family tree: a question card sits on the left, everything that
   depends on it stacks to its right. Connectors are drawn with pseudo-elements
   so the whole chart is plain flexbox — no canvas, no layout measuring.

   Geometry per child row: 15px stub | spine | 15px stub | card
   The spine sits at left:0 of each child row; :first-child / :last-child trim
   it to a half-height so the vertical line spans first→last child centres. */
.root-callout {
  margin: 12px 0 0;
  padding: 8px 12px;
  background: var(--teal-soft);
  color: var(--teal-dark);
  border-radius: 8px;
  font-size: 13.5px;
}
.chart-bar {
  display: flex; align-items: center; justify-content: space-between;
  flex-wrap: wrap; gap: 10px; margin-bottom: 10px;
}
.chart-legend { font-size: 12px; color: var(--muted); display: flex; align-items: center; gap: 6px; flex-wrap: wrap; }
.lg { width: 11px; height: 11px; border-radius: 3px; display: inline-block; }
.lg-root { background: var(--teal); }
.lg-dep { background: #d9cfbc; margin-left: 8px; }
.chart-zoom { display: flex; align-items: center; gap: 2px; }
.zoom-val { font-size: 12px; color: var(--muted); min-width: 38px; text-align: center; }

.chart-scroll {
  overflow: auto;
  padding: 10px 4px 16px;
  /* Tall trees scroll inside the card rather than stretching the page. */
  max-height: 72vh;
  background:
    linear-gradient(90deg, var(--card) 30%, transparent),
    linear-gradient(90deg, transparent, var(--card) 70%) 100% 0;
  background-repeat: no-repeat;
  background-size: 24px 100%;
  background-attachment: local, local;
}
.orgchart {
  display: inline-block;
  transform-origin: top left;
  transition: transform 0.12s ease;
  min-width: min-content;
}

.ot-row { display: flex; align-items: center; position: relative; }
.ot-kids { display: flex; flex-direction: column; justify-content: center; margin-left: 15px; }

/* horizontal stub from the spine into each child card */
.ot-kids > .ot-row { position: relative; padding-left: 15px; }
.ot-kids > .ot-row::before {
  content: ""; position: absolute; left: 0; top: 50%;
  width: 15px; height: 2px; background: var(--line);
}
/* the vertical spine, trimmed at the first and last child */
.ot-kids > .ot-row::after {
  content: ""; position: absolute; left: 0; top: 0; bottom: 0;
  width: 2px; background: var(--line);
}
.ot-kids > .ot-row:first-child::after { top: 50%; }
.ot-kids > .ot-row:last-child::after { bottom: 50%; }
.ot-kids > .ot-row:only-child::after { display: none; }

/* stub leaving the parent card toward the spine */
.ot-row.has-kids > .ot-card::after {
  content: ""; position: absolute; right: -15px; top: 50%;
  width: 15px; height: 2px; background: var(--line);
}

.ot-card {
  position: relative;
  flex: 0 0 auto;
  width: 232px;
  margin: 5px 0;
  padding: 10px 12px 10px;
  background: var(--card);
  border: 1px solid var(--line);
  border-left: 4px solid #d9cfbc;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  cursor: pointer;
  transition: border-color 0.15s, box-shadow 0.15s, transform 0.1s;
}
.ot-card:hover { border-color: var(--teal); box-shadow: 0 3px 10px rgba(0,0,0,0.09); }
.ot-card.root { border-left-color: var(--teal); border-left-width: 5px; }
.ot-card-top { display: flex; align-items: center; gap: 6px; margin-bottom: 6px; }
.ot-tag {
  font-size: 10.5px; font-weight: 600; letter-spacing: 0.02em;
  padding: 1px 7px; border-radius: 999px;
  background: var(--teal-soft); color: var(--teal-dark);
}
.ot-tag.dep { background: #f4efe4; color: #7a6c3f; }
.ot-text {
  font-size: 13.5px; line-height: 1.45; color: var(--ink);
  /* Long bilingual questions are clamped; the full text is in the modal. */
  display: -webkit-box; -webkit-line-clamp: 4; -webkit-box-orient: vertical;
  overflow: hidden;
}
.ot-why {
  margin-top: 6px; padding-top: 6px; border-top: 1px dashed var(--line);
  font-size: 11.5px; line-height: 1.4; color: var(--muted);
}
.ot-roll { margin-top: 6px; font-size: 11px; color: var(--muted); }
.ot-toggle {
  position: absolute; right: -11px; top: 50%; transform: translateY(-50%);
  width: 22px; height: 22px; padding: 0;
  border: 1px solid var(--line); background: var(--card); color: var(--muted);
  border-radius: 999px; cursor: pointer; font-size: 10.5px; font-weight: 600;
  font-family: inherit; line-height: 1; z-index: 2;
}
.ot-toggle:hover { border-color: var(--teal); color: var(--teal-dark); }

/* ancestor breadcrumb inside the question modal */
.trail {
  display: flex; flex-wrap: wrap; align-items: center; gap: 6px;
  margin-top: 10px; padding: 8px 10px;
  background: #faf7f1; border-radius: 8px; font-size: 12px;
}
.trail-label { color: var(--muted); }
.trail-item { color: var(--teal-dark); cursor: pointer; text-decoration: underline dotted; }
.trail-item:hover { color: var(--teal); }
.trail-sep { color: var(--muted); }

@media (max-width: 640px) {
  .ot-card { width: 190px; }
  .chart-scroll { max-height: 64vh; }
}
.icon-btn {
  border: none; background: none; cursor: pointer;
  font-size: 13px; padding: 2px 5px; border-radius: 6px;
  color: var(--muted); font-family: inherit;
}
.icon-btn:hover { background: var(--teal-soft); color: var(--teal-dark); }

/* ---------- modal ---------- */
.modal-back {
  position: fixed; inset: 0;
  background: rgba(43, 43, 51, 0.45);
  display: flex; align-items: flex-start; justify-content: center;
  padding: 4vh 14px;
  z-index: 50;
}
.modal {
  background: var(--card);
  border-radius: 16px;
  max-width: 720px;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
  padding: 22px 24px;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.25);
}
.modal h2 { font-size: 17px; margin: 0 0 4px; line-height: 1.5; }
.modal .close-x {
  float: right;
  border: none; background: none; font-size: 20px; cursor: pointer;
  color: var(--muted); padding: 0 4px;
}

/* ---------- brief ---------- */
.brief {
  background: #fffdf8;
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 6px 18px 14px;
  margin-top: 12px;
  font-size: 14.5px;
}
.brief h2 { font-size: 15.5px; margin: 16px 0 6px; color: var(--teal-dark); }
.brief h1 { font-size: 16px; }
.brief h3 { font-size: 14.5px; margin: 14px 0 4px; }
.brief ul, .brief ol { padding-left: 22px; margin: 6px 0; }
.brief li { margin: 3px 0; }
.brief p { margin: 8px 0; }
.brief blockquote {
  border-left: 3px solid var(--teal);
  margin: 8px 0; padding: 2px 12px; color: #555;
}
.brief a { color: var(--teal-dark); }
.sources { font-size: 12.5px; color: var(--muted); margin-top: 10px; }
.sources a { color: var(--teal-dark); word-break: break-all; }

.spinner {
  display: inline-block;
  width: 15px; height: 15px;
  border: 2.5px solid var(--teal-soft);
  border-top-color: var(--teal);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
  vertical-align: -3px;
  margin-right: 7px;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ---------- toast ---------- */
#toast {
  position: fixed;
  bottom: 24px; left: 50%;
  transform: translateX(-50%);
  background: var(--ink);
  color: #fff;
  border-radius: 10px;
  padding: 10px 20px;
  font-size: 14px;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.25s;
  z-index: 100;
  max-width: 90vw;
}
#toast.show { opacity: 0.95; }
#toast.err { background: #a33d26; }

/* ---------- login ---------- */
.login-wrap {
  max-width: 400px;
  margin: 10vh auto;
  padding: 0 16px;
}
.login-wrap .card { padding: 28px; text-align: center; }
.login-wrap .logo-dot { width: 52px; height: 52px; margin: 0 auto 12px; font-size: 26px; }

.err-text { color: #b0402a; font-size: 13.5px; margin-top: 8px; }

/* ---------- priorities ---------- */
.prio-count {
  font-size: 13.5px;
  color: var(--muted);
  background: var(--teal-soft);
  border-radius: 999px;
  padding: 4px 14px;
  display: inline-block;
}

@media (max-width: 560px) {
  body { font-size: 15px; }
  .card { padding: 15px; }
  .modal { padding: 16px; }
  header h1 { font-size: 15.5px; }
}

/* ---------- near-duplicate groups ---------- */
/* A lead card carries its group folded away; the originals are one click
   below it, never rewritten and never hidden from the team. */
.ot-group { margin-top: 6px; padding-top: 6px; border-top: 1px dashed var(--line); }
.ot-group-toggle {
  border: none; background: none; padding: 0; cursor: pointer;
  font-family: inherit; font-size: 11px; font-weight: 600; color: var(--teal-dark);
}
.ot-group-toggle:hover { text-decoration: underline; }
.ot-group-why { font-size: 11px; color: var(--muted); margin-top: 3px; line-height: 1.4; }
.ot-group-list { margin-top: 5px; display: flex; flex-direction: column; gap: 4px; }
.ot-group-item {
  font-size: 11.5px; line-height: 1.4; color: var(--ink);
  background: #faf7f1; border-radius: 6px; padding: 5px 7px; cursor: pointer;
}
.ot-group-item:hover { background: var(--teal-soft); }
.ot-group-star { color: var(--muted); margin-right: 5px; }
.ot-group-who { color: var(--muted); margin-left: 5px; }

.grp {
  margin-top: 10px; padding: 9px 11px;
  background: #faf7f1; border-radius: 8px; font-size: 12.5px;
}
.grp-label { color: var(--muted); display: block; margin-bottom: 5px; }
.grp-why { color: var(--muted); font-size: 12px; margin: 4px 0; }
.grp-member { display: flex; align-items: center; gap: 6px; margin-top: 4px; }
.grp select { margin-top: 4px; max-width: 100%; }

/* ---------- harvested brief prompts ---------- */
.badge.ai { background: #ede7f6; color: #5b4b8a; }
.pp-list { max-height: 46vh; overflow-y: auto; margin-top: 10px; }
.pp-group { margin-bottom: 14px; }
.pp-source {
  font-size: 12px; color: var(--muted); margin-bottom: 6px;
  display: flex; align-items: center; gap: 8px; flex-wrap: wrap;
}
.pp-item {
  display: flex; gap: 9px; align-items: flex-start;
  padding: 7px 9px; border-radius: 8px; cursor: pointer;
  font-size: 13.5px; line-height: 1.45;
}
.pp-item:hover { background: var(--teal-soft); }
.pp-item.dim { opacity: 0.55; cursor: default; }
.pp-item.dim:hover { background: none; }
.pp-item input { margin-top: 3px; flex: 0 0 auto; }