@import url('https://fonts.googleapis.com/css2?family=Cinzel+Decorative:wght@400;700&family=Cinzel:wght@400;600;700&family=Lora:ital,wght@0,400;0,500;0,600;1,400;1,500&family=Inter:wght@300;400;500;600&display=swap');

:root {
  --bg: #080810;
  --bg2: #0e0e1a;
  --bg3: #14142a;
  --border: rgba(255,255,255,0.07);
  --text: #d8d8e8;
  --text-dim: #7070a0;
  --gold: #c9a227;
  --gold-glow: rgba(201,162,39,0.35);
  --zhuge: #c9a227;
  --guan: #c0392b;
  --zhang: #e67e22;
  --xu: #16a085;
  --zhao: #2471a3;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: 'Lora', Georgia, serif;
  min-height: 100vh;
  overflow-x: hidden;
  padding-bottom: max(60px, env(safe-area-inset-bottom));
}

/* ── Background texture ── */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  background:
    radial-gradient(ellipse 80% 50% at 50% 0%, rgba(201,162,39,0.04) 0%, transparent 60%),
    radial-gradient(ellipse 60% 40% at 50% 100%, rgba(36,113,163,0.04) 0%, transparent 60%);
  pointer-events: none;
}

/* ── Header ── */
header {
  text-align: center;
  padding: 36px 20px 20px;
  position: relative;
}

header .eyebrow {
  font-size: 11px;
  letter-spacing: 4px;
  color: var(--gold);
  font-family: 'Cinzel', serif;
  opacity: 0.8;
  margin-bottom: 10px;
}

header h1 {
  font-family: 'Cinzel Decorative', 'Cinzel', serif;
  font-size: clamp(22px, 4.5vw, 40px);
  font-weight: 700;
  color: #fff;
  letter-spacing: 2px;
}

header h1 span {
  color: var(--gold);
}

header .subtitle {
  color: var(--text-dim);
  font-size: 13px;
  margin-top: 8px;
  letter-spacing: 1px;
}

/* ── Divider ── */
.divider {
  display: flex;
  align-items: center;
  gap: 12px;
  max-width: 600px;
  margin: 16px auto;
  padding: 0 24px;
}
.divider::before, .divider::after {
  content: '';
  flex: 1;
  height: 1px;
  background: linear-gradient(to right, transparent, var(--gold), transparent);
  opacity: 0.3;
}
.divider span { color: var(--gold); font-size: 16px; opacity: 0.6; }

/* ── Query section ── */
.query-section {
  max-width: 760px;
  margin: 8px auto 0;
  padding: 0 20px;
}

textarea#query {
  width: 100%;
  min-height: 100px;
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: 12px;
  color: var(--text);
  font-family: 'Lora', Georgia, serif;
  font-size: 14px;
  padding: 14px 16px;
  resize: vertical;
  line-height: 1.7;
  transition: border-color 0.2s;
  outline: none;
}
textarea#query:focus { border-color: rgba(201,162,39,0.4); }
textarea#query::placeholder { color: var(--text-dim); opacity: 0.4; }

.query-actions {
  display: flex;
  gap: 12px;
  margin-top: 12px;
}

button#convene {
  flex: 1;
  padding: 13px 28px;
  background: linear-gradient(135deg, #c9a227, #a07a15);
  border: none;
  border-radius: 10px;
  color: #0a0a10;
  font-weight: 700;
  font-size: 13px;
  letter-spacing: 2px;
  cursor: pointer;
  transition: all 0.2s;
  font-family: 'Cinzel', serif;
  text-transform: uppercase;
}
button#convene:hover:not(:disabled) { filter: brightness(1.1); transform: translateY(-1px); }
button#convene:disabled { opacity: 0.5; cursor: not-allowed; transform: none; }

button#reset-btn {
  padding: 13px 20px;
  background: transparent;
  border: 1px solid var(--border);
  border-radius: 10px;
  color: var(--text-dim);
  font-size: 12px;
  font-family: 'Cinzel', serif;
  letter-spacing: 1px;
  cursor: pointer;
  transition: all 0.2s;
}
button#reset-btn:hover { border-color: rgba(255,255,255,0.2); color: var(--text); }

.suggestions {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 12px;
}
.suggestions-label {
  font-family: 'Cinzel', serif;
  font-size: 10px;
  letter-spacing: 1.5px;
  color: var(--text-dim);
  text-transform: uppercase;
  margin-right: 2px;
  white-space: nowrap;
}
.suggestion-pill {
  padding: 5px 13px;
  background: transparent;
  border: 1px solid rgba(201,162,39,0.25);
  border-radius: 999px;
  color: rgba(201,162,39,0.7);
  font-size: 12px;
  font-family: 'Lora', Georgia, serif;
  cursor: pointer;
  transition: all 0.2s;
  white-space: nowrap;
}
.suggestion-pill:hover {
  background: rgba(201,162,39,0.08);
  border-color: rgba(201,162,39,0.55);
  color: #c9a227;
}

/* ── Phase indicator ── */
.phase-bar {
  max-width: 760px;
  margin: 20px auto 0;
  padding: 0 20px;
  display: none;
}
.phase-bar.visible { display: block; }

.phase-track {
  display: flex;
  align-items: center;
  gap: 0;
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 10px 16px;
}

.phase-step {
  display: flex;
  align-items: center;
  gap: 8px;
  flex: 1;
  font-size: 11px;
  color: var(--text-dim);
  transition: all 0.3s;
}
.phase-step.active { color: var(--gold); }
.phase-step.done { color: #4a9e6a; }

.phase-dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--border);
  flex-shrink: 0;
  transition: all 0.3s;
}
.phase-step.active .phase-dot {
  background: var(--gold);
  box-shadow: 0 0 8px var(--gold);
  animation: pulseDot 1.2s ease-in-out infinite;
}
.phase-step.done .phase-dot { background: #4a9e6a; }

.phase-connector {
  flex: 0 0 20px;
  height: 1px;
  background: var(--border);
  margin: 0 4px;
}

/* ── Council grid ── */
.council-section {
  max-width: 900px;
  margin: 28px auto 0;
  padding: 0 20px;
}

.council-grid {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  grid-template-rows: auto auto;
  gap: 16px;
  justify-items: center;
}

/* Zhuge Liang centered at top, spanning all 3 cols */
.agent-card[data-agent="zhuge-liang"] {
  grid-column: 1 / 4;
  width: 200px;
}

/* Bottom row: 4 advisors, centered */
.advisors-row {
  grid-column: 1 / 4;
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

/* ── Agent card ── */
.agent-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  padding: 16px 12px;
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: 16px;
  width: 160px;
  transition: all 0.4s ease;
  position: relative;
  overflow: hidden;
}

.agent-card::before {
  content: '';
  position: absolute;
  inset: -2px;
  border-radius: 18px;
  opacity: 0;
  transition: opacity 0.4s;
  z-index: -1;
}

.agent-card.active::before { opacity: 1; animation: borderSpin 2s linear infinite; }
.agent-card.done::before { opacity: 0; }

/* Per-agent colors */
.agent-card[data-agent="zhuge-liang"] { --agent-color: var(--zhuge); }
.agent-card[data-agent="guan-yu"]     { --agent-color: var(--guan); }
.agent-card[data-agent="zhang-fei"]   { --agent-color: var(--zhang); }
.agent-card[data-agent="xu-shu"]      { --agent-color: var(--xu); }
.agent-card[data-agent="zhao-yun"]    { --agent-color: var(--zhao); }

.agent-card.active {
  border-color: var(--agent-color);
  box-shadow: 0 0 24px -4px var(--agent-color), inset 0 0 40px rgba(0,0,0,0.2);
  background: color-mix(in srgb, var(--bg2) 90%, var(--agent-color) 10%);
  transform: translateY(-4px);
}

.agent-card.done {
  border-color: rgba(74,158,106,0.5);
  box-shadow: 0 0 12px -4px rgba(74,158,106,0.4);
}

.agent-card.dimmed { opacity: 0.35; }

/* ── Portrait ── */
.portrait-wrap {
  position: relative;
  width: 90px; height: 90px;
}

.agent-card[data-agent="zhuge-liang"] .portrait-wrap {
  width: 110px; height: 110px;
}

.portrait-ring {
  position: absolute;
  inset: -4px;
  border-radius: 50%;
  border: 2px solid transparent;
  background: conic-gradient(var(--agent-color), transparent, var(--agent-color)) border-box;
  -webkit-mask: linear-gradient(#fff 0 0) padding-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: destination-out;
  mask-composite: exclude;
  opacity: 0;
  transition: opacity 0.4s;
  animation: rotateBorder 2s linear infinite;
}

.agent-card.active .portrait-ring { opacity: 1; }
.agent-card.done .portrait-ring { opacity: 0; }

.portrait {
  width: 100%; height: 100%;
  border-radius: 50%;
  object-fit: cover;
  object-position: top;
  border: 2px solid var(--border);
  transition: border-color 0.4s;
  display: block;
}

.agent-card.active .portrait { border-color: var(--agent-color); }
.agent-card.done .portrait { border-color: rgba(74,158,106,0.6); }

.status-badge {
  position: absolute;
  bottom: 0; right: 0;
  width: 20px; height: 20px;
  border-radius: 50%;
  background: var(--bg);
  border: 2px solid var(--bg);
  display: flex; align-items: center; justify-content: center;
  font-size: 10px;
}

.agent-card.active .status-badge { animation: pulseDot 1s ease-in-out infinite; }

/* ── Agent info ── */
.agent-name {
  font-family: 'Cinzel', serif;
  font-size: 12px;
  font-weight: 600;
  color: #e8e8f0;
  text-align: center;
  line-height: 1.3;
  letter-spacing: 0.5px;
}

.agent-card[data-agent="zhuge-liang"] .agent-name { font-size: 14px; letter-spacing: 1px; }

.agent-chinese {
  font-size: 11px;
  color: var(--text-dim);
  text-align: center;
  letter-spacing: 2px;
}

.agent-role {
  font-size: 10px;
  color: var(--agent-color);
  text-align: center;
  letter-spacing: 0.5px;
  font-weight: 500;
  text-transform: uppercase;
  opacity: 0.8;
}

.agent-timer {
  font-size: 10px;
  color: var(--text-dim);
  font-variant-numeric: tabular-nums;
  height: 14px;
}

/* ── Response panels ── */
.responses-section {
  max-width: 900px;
  margin: 28px auto 0;
  padding: 0 20px;
  display: none;
}
.responses-section.visible { display: block; }

.responses-section h2 {
  font-family: 'Cinzel', serif;
  font-size: 11px;
  letter-spacing: 4px;
  color: var(--text-dim);
  margin-bottom: 16px;
  text-transform: uppercase;
}

.response-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
}

/* ── Export PDF button ── */
.export-pdf-btn {
  margin-left: 8px;
  padding: 5px 14px;
  background: transparent;
  border: 1px solid rgba(201,162,39,0.5);
  border-radius: 20px;
  color: var(--gold);
  font-size: 12px;
  font-family: 'Cinzel', serif;
  letter-spacing: 0.5px;
  cursor: pointer;
  transition: background 0.2s;
  white-space: nowrap;
  flex-shrink: 0;
}
.export-pdf-btn:hover { background: rgba(201,162,39,0.1); }

/* ── Error banner ── */
.error-banner {
  max-width: 900px;
  margin: 16px auto 0;
  padding: 0 20px;
}
.error-banner-inner {
  background: rgba(192,57,43,0.1);
  border: 1px solid rgba(192,57,43,0.4);
  border-radius: 10px;
  padding: 12px 16px;
  display: flex;
  align-items: flex-start;
  gap: 10px;
}
.error-banner-icon { font-size: 16px; flex-shrink: 0; }
.error-phase-label {
  font-size: 11px;
  font-family: 'Cinzel', serif;
  letter-spacing: 1px;
  color: #e74c3c;
  text-transform: uppercase;
  margin-bottom: 4px;
}
.error-message { font-size: 13px; color: #e05a4e; }

/* ── Mobile responsive ── */
@media (max-width: 640px) {
  /* Response grid */
  .response-grid { grid-template-columns: 1fr; }

  /* Header */
  header { padding: 20px 16px 12px; }
  header .subtitle { font-size: 12px; letter-spacing: 0.5px; }

  /* Prevent iOS auto-zoom on textarea focus (requires font-size ≥ 16px) */
  textarea#query { font-size: 16px; }

  /* Query buttons — stack vertically with proper touch targets */
  .query-actions { flex-direction: column; }
  button#convene  { min-height: 44px; font-size: 12px; }
  button#reset-btn { min-height: 44px; width: 100%; }

  /* Suggestion pills — single scrollable row, no vertical wrap */
  .suggestions {
    flex-wrap: nowrap;
    overflow-x: auto;
    overflow-y: hidden;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
    gap: 6px;
    padding-bottom: 4px;
  }
  .suggestions::-webkit-scrollbar { display: none; }
  .suggestions-label { flex-shrink: 0; }
  .suggestion-pill { flex-shrink: 0; padding: 6px 12px; font-size: 12px; }

  /* Phase track — hide text labels, keep dots + connectors */
  .phase-step span { display: none; }
  .phase-step { flex: 0 0 auto; justify-content: center; gap: 0; }
  .phase-connector { flex: 0 0 14px; }
  .phase-track { padding: 10px 12px; }

  /* Agent cards — narrower on small screens */
  .agent-card { width: 130px; padding: 12px 8px; gap: 8px; }
  .agent-card[data-agent="zhuge-liang"] { width: 160px; }
  .portrait-wrap { width: 72px; height: 72px; }
  .agent-card[data-agent="zhuge-liang"] .portrait-wrap { width: 88px; height: 88px; }
  .advisors-row { gap: 10px; }

  /* Synthesis / evaluation — reduce interior padding */
  .synthesis-card { padding: 16px; }
  .synthesis-header .title { font-size: 15px; }
  .evaluation-card { padding: 16px; }

  /* Response body — allow more height on mobile */
  .response-body { max-height: 400px; }

  /* Synthesis/evaluation header — wrap on narrow screens */
  .synthesis-header { flex-wrap: wrap; gap: 10px; }
  .synthesis-portrait { width: 44px; height: 44px; }
  .synthesis-header .title { font-size: 14px; }
  .synthesis-header .status-pill { margin-left: 0; }

  /* Export PDF button — full width on mobile */
  .export-pdf-btn { margin-left: 0; width: 100%; text-align: center; padding: 8px 14px; margin-top: 4px; }

  /* Error banner responsive */
  .error-banner { padding: 0 16px; }
  .error-banner-inner { padding: 10px 12px; }

  /* Follow-up card */
  .followup-card { padding: 16px; }
}

.response-card {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 16px;
  transition: border-color 0.4s;
  animation: fadeIn 0.4s ease;
}

.response-card.active { border-color: var(--agent-color); }
.response-card.done { border-color: rgba(74,158,106,0.3); }

.response-card-header {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 12px;
}

.response-portrait {
  width: 36px; height: 36px;
  border-radius: 50%;
  object-fit: cover;
  object-position: top;
  border: 1.5px solid var(--agent-color);
  flex-shrink: 0;
}

.response-card-title { flex: 1; }
.response-card-title .name { font-size: 13px; font-weight: 600; color: #e0e0f0; }
.response-card-title .role { font-size: 10px; color: var(--agent-color); text-transform: uppercase; letter-spacing: 0.5px; }

.status-pill {
  font-size: 10px;
  padding: 3px 9px;
  border-radius: 20px;
  font-weight: 600;
  letter-spacing: 0.5px;
}
.status-pill.waiting { background: rgba(255,255,255,0.04); color: #555; }
.status-pill.active  { background: rgba(201,162,39,0.12); color: var(--gold); animation: pulseText 1.5s ease infinite; }
.status-pill.done    { background: rgba(74,158,106,0.12); color: #4a9e6a; }
.status-pill.error   { background: rgba(192,57,43,0.12); color: #e74c3c; }

.response-body {
  font-size: 13.5px;
  font-family: 'Lora', Georgia, serif;
  color: var(--text-dim);
  line-height: 1.8;
  max-height: 320px;
  overflow-y: auto;
  scrollbar-width: thin;
  scrollbar-color: #333 transparent;
}

.response-body.has-content { color: var(--text); }

.thinking-dots {
  display: flex;
  gap: 5px;
  padding: 8px 0;
}

.thinking-dots span {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--agent-color);
  animation: bounce 1.4s ease-in-out infinite;
}
.thinking-dots span:nth-child(2) { animation-delay: 0.2s; }
.thinking-dots span:nth-child(3) { animation-delay: 0.4s; }

/* ── Synthesis section ── */
.synthesis-section {
  max-width: 900px;
  margin: 28px auto 40px;
  padding: 0 20px;
  display: none;
  animation: fadeIn 0.6s ease;
}
.synthesis-section.visible { display: block; }

.synthesis-card {
  background: linear-gradient(135deg, rgba(201,162,39,0.06), rgba(201,162,39,0.02));
  border: 1px solid rgba(201,162,39,0.25);
  border-radius: 16px;
  padding: 24px;
}

.synthesis-header {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 20px;
}

.synthesis-portrait {
  width: 56px; height: 56px;
  border-radius: 50%;
  object-fit: cover;
  object-position: top;
  border: 2px solid var(--gold);
  box-shadow: 0 0 20px rgba(201,162,39,0.3);
}

.synthesis-header .title { font-family: 'Cinzel Decorative', 'Cinzel', serif; font-size: 17px; color: #fff; letter-spacing: 1px; }
.synthesis-header .sub { font-size: 12px; color: var(--text-dim); margin-top: 3px; }

.synthesis-body {
  font-size: 14.5px;
  font-family: 'Lora', Georgia, serif;
  line-height: 1.9;
  color: var(--text);
}

/* ── Markdown rendering ── */
.md h2 { font-family: 'Cinzel', serif; font-size: 14px; font-weight: 600; color: var(--gold); margin: 22px 0 8px; letter-spacing: 1px; text-transform: uppercase; }
.md h3 { font-family: 'Cinzel', serif; font-size: 11px; font-weight: 600; color: #8080b0; margin: 16px 0 6px; text-transform: uppercase; letter-spacing: 2px; }
.md p  { margin: 7px 0; }
.md ul { padding-left: 20px; margin: 7px 0; list-style: none; }
.md li { margin: 5px 0; padding-left: 4px; }
.md li::before { content: '◆'; color: var(--gold); font-size: 8px; margin-right: 8px; vertical-align: middle; opacity: 0.7; }
.md strong { color: #f0f0ff; font-weight: 600; }
.md em { color: #c0c0e0; font-style: italic; }
.md hr { border: none; border-top: 1px solid rgba(201,162,39,0.15); margin: 20px 0; }
.md blockquote { border-left: 2px solid var(--gold); padding-left: 14px; color: var(--text-dim); font-style: italic; margin: 10px 0; opacity: 0.85; }
.md code { font-family: 'IBM Plex Mono', monospace; background: rgba(255,255,255,0.06); padding: 1px 6px; border-radius: 4px; font-size: 12px; color: #c0d0e0; overflow-wrap: break-word; word-break: break-word; }
.md table, .response-body table { width: 100%; border-collapse: collapse; margin: 14px 0; font-size: 13px; display: block; overflow-x: auto; }
.md th, .md td, .response-body th, .response-body td { padding: 7px 12px; text-align: left; border: 1px solid rgba(255,255,255,0.08); }
.md th, .response-body th { font-family: 'Cinzel', serif; font-size: 12.5px; font-weight: 600; letter-spacing: 0.5px; color: var(--gold); background: rgba(201,162,39,0.10); text-transform: uppercase; }
.md td, .response-body td { color: var(--text); }
.md tr:nth-child(even) td, .response-body tr:nth-child(even) td { background: rgba(255,255,255,0.02); }

/* ── Numbered citations ── */
.cite-link { color: var(--xu); font-size: 11px; font-family: 'Cinzel', serif; font-weight: 600; vertical-align: super; line-height: 0; text-decoration: underline; text-decoration-style: dotted; text-underline-offset: 2px; cursor: pointer; transition: color 0.15s; }
.cite-link:hover { color: #1abc9c; border-bottom-color: #1abc9c; }
.sources-header { font-family: 'Cinzel', serif; font-size: 11px; letter-spacing: 2px; color: var(--xu); text-transform: uppercase; margin-top: 18px; margin-bottom: 8px; opacity: 0.85; }
.source-item { font-size: 12px; line-height: 1.6; margin-bottom: 5px; display: flex; gap: 8px; align-items: baseline; }
.source-num { font-family: 'Cinzel', serif; font-size: 10.5px; color: var(--xu); flex-shrink: 0; }
.source-url { color: var(--xu); text-decoration: none; word-break: break-all; opacity: 0.75; font-size: 11.5px; }
.source-url:hover { opacity: 1; text-decoration: underline; }
.source-desc { color: var(--text-dim); font-size: 11.5px; }

/* ── Scroll margin for sticky phase bar ── */
.evaluation-section, .response-card, .synthesis-section {
  scroll-margin-top: 80px;
}

/* ── Animations ── */
@keyframes fadeIn   { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: translateY(0); } }
@keyframes pulseDot { 0%,100% { transform: scale(1); opacity: 1; } 50% { transform: scale(1.3); opacity: 0.7; } }
@keyframes pulseText { 0%,100% { opacity: 1; } 50% { opacity: 0.6; } }
@keyframes rotateBorder { to { transform: rotate(360deg); } }
@keyframes bounce  { 0%,80%,100% { transform: translateY(0); } 40% { transform: translateY(-6px); } }

/* ── Zhuge Liang evaluation section ── */
.evaluation-section {
  max-width: 900px;
  margin: 20px auto 0;
  padding: 0 20px;
  display: none;
  animation: fadeIn 0.6s ease;
}
.evaluation-section.visible { display: block; }

.evaluation-card {
  background: linear-gradient(135deg, rgba(201,162,39,0.06), rgba(201,162,39,0.02));
  border: 1px solid rgba(201,162,39,0.25);
  border-radius: 16px;
  padding: 24px;
  transition: border-color 0.4s, box-shadow 0.4s;
}

.evaluation-card.rejected {
  background: linear-gradient(135deg, rgba(192,57,43,0.08), rgba(192,57,43,0.02));
  border-color: rgba(192,57,43,0.4);
  box-shadow: 0 0 20px rgba(192,57,43,0.1);
}

.evaluation-card.rejected .synthesis-header .title { color: #e05a4e; }

/* ── Refined prompt display ── */
.refined-prompt-box {
  margin-top: 16px;
  padding: 14px 18px;
  background: linear-gradient(135deg, rgba(201,162,39,0.08), rgba(201,162,39,0.03));
  border: 1px solid rgba(201,162,39,0.3);
  border-radius: 10px;
  animation: fadeIn 0.6s ease;
}
.refined-prompt-label {
  font-family: 'Cinzel', serif;
  font-size: 10px;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 8px;
  opacity: 0.9;
}
.refined-prompt-text {
  font-family: 'Lora', Georgia, serif;
  font-size: 13px;
  line-height: 1.7;
  color: var(--text);
  white-space: pre-wrap;
}
.framework-badge {
  display: inline-block;
  margin-left: 8px;
  padding: 1px 8px;
  background: rgba(201,162,39,0.12);
  border: 1px solid rgba(201,162,39,0.35);
  border-radius: 10px;
  font-size: 9px;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--gold);
  vertical-align: middle;
}

/* ── Xu Shu research banner ── */
.research-banner {
  max-width: 900px;
  margin: 16px auto 0;
  padding: 0 20px;
  display: none;
  animation: fadeIn 0.3s ease;
}
.research-banner.visible { display: block; }

.research-banner-inner {
  background: rgba(22,160,133,0.08);
  border: 1px solid rgba(22,160,133,0.3);
  border-radius: 10px;
  padding: 12px 16px;
  font-size: 12px;
  color: var(--xu);
  display: flex;
  align-items: center;
  gap: 8px;
}
.research-banner-inner .icon { font-size: 16px; }

/* ── History sidebar ── */
#history-toggle {
  position: fixed;
  top: 16px;
  left: 16px;
  z-index: 1000;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: 1px solid var(--border);
  background: var(--bg2);
  color: var(--text-dim);
  font-size: 18px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s;
  padding: 0;
  line-height: 1;
}
#history-toggle:hover {
  border-color: var(--gold);
  color: var(--gold);
  box-shadow: 0 0 12px rgba(201,162,39,0.2);
}

#sidebar-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.5);
  z-index: 1001;
  display: none;
}
#sidebar-backdrop.open { display: block; }

#history-sidebar {
  position: fixed;
  top: 0;
  left: 0;
  bottom: 0;
  width: 320px;
  background: var(--bg2);
  border-right: 1px solid var(--border);
  z-index: 1002;
  transform: translateX(-100%);
  transition: transform 0.3s ease;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}
#history-sidebar.open { transform: translateX(0); }

.sidebar-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 16px 12px;
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
}
.sidebar-title {
  font-family: 'Cinzel', serif;
  font-size: 13px;
  letter-spacing: 2px;
  color: var(--gold);
  text-transform: uppercase;
}
#sidebar-close {
  background: none;
  border: none;
  color: var(--text-dim);
  font-size: 22px;
  cursor: pointer;
  padding: 0 4px;
  line-height: 1;
}
#sidebar-close:hover { color: var(--text); }

.sidebar-actions {
  padding: 10px 16px;
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
}
#clear-all-sessions {
  background: none;
  border: 1px solid rgba(192,57,43,0.3);
  color: #e74c3c;
  font-size: 11px;
  font-family: 'Cinzel', serif;
  letter-spacing: 1px;
  padding: 5px 14px;
  border-radius: 6px;
  cursor: pointer;
  transition: all 0.2s;
}
#clear-all-sessions:hover {
  background: rgba(192,57,43,0.1);
  border-color: rgba(192,57,43,0.5);
}

#session-list {
  flex: 1;
  overflow-y: auto;
  scrollbar-width: thin;
  scrollbar-color: #333 transparent;
}

.session-item {
  padding: 12px 16px;
  border-bottom: 1px solid var(--border);
  cursor: pointer;
  transition: background 0.15s;
  display: flex;
  align-items: flex-start;
  gap: 8px;
}
.session-item:hover { background: rgba(255,255,255,0.03); }
.session-item-content { flex: 1; min-width: 0; }
.session-item-date {
  font-size: 10px;
  color: var(--text-dim);
  margin-bottom: 4px;
  font-variant-numeric: tabular-nums;
}
.session-item-query {
  font-size: 13px;
  color: var(--text);
  line-height: 1.5;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.session-item.rejected .session-item-query { color: #e05a4e; }
.session-item.rejected .session-item-date::before {
  content: '✕ ';
  color: #e74c3c;
}
.session-item-delete {
  background: none;
  border: none;
  color: var(--text-dim);
  font-size: 16px;
  cursor: pointer;
  padding: 0 2px;
  line-height: 1;
  flex-shrink: 0;
  opacity: 0;
  transition: opacity 0.15s, color 0.15s;
}
.session-item:hover .session-item-delete { opacity: 1; }
.session-item-delete:hover { color: #e74c3c; }

.session-list-empty {
  text-align: center;
  color: var(--text-dim);
  font-size: 12px;
  padding: 32px 16px;
  font-style: italic;
}

@media (max-width: 640px) {
  #history-sidebar { width: 100%; padding-top: env(safe-area-inset-top); }
}

/* ── Very small screens ── */
@media (max-width: 380px) {
  .agent-card { width: 110px; padding: 10px 6px; }
  .agent-card[data-agent="zhuge-liang"] { width: 140px; }
  .portrait-wrap { width: 60px; height: 60px; }
  .agent-card[data-agent="zhuge-liang"] .portrait-wrap { width: 76px; height: 76px; }
  .agent-name { font-size: 11px; }
  .agent-card[data-agent="zhuge-liang"] .agent-name { font-size: 12px; }
  .synthesis-portrait { width: 38px; height: 38px; }
  .response-portrait { width: 30px; height: 30px; }
}

/* ── Shadow typing / reveal animation ── */
.reveal-word {
  display: inline;
  filter: blur(8px);
  opacity: 0;
  transition: filter 0.4s ease, opacity 0.3s ease;
}
.reveal-word.revealed {
  filter: blur(4px);
  opacity: 0.5;
}

/* ── Follow-up section ── */
.followup-section {
  max-width: 900px;
  margin: 28px auto 40px;
  padding: 0 20px;
  display: none;
  animation: fadeIn 0.6s ease;
}
.followup-section.visible { display: block; }

.followup-card {
  background: linear-gradient(135deg, rgba(201,162,39,0.04), rgba(201,162,39,0.01));
  border: 1px solid rgba(201,162,39,0.18);
  border-radius: 16px;
  padding: 20px 24px;
}

.followup-header {
  display: flex;
  align-items: baseline;
  gap: 10px;
  margin-bottom: 14px;
}

.followup-title {
  font-family: 'Cinzel', serif;
  font-size: 14px;
  color: var(--gold);
  letter-spacing: 1px;
}

.followup-sub {
  font-size: 12px;
  color: var(--text-dim);
  letter-spacing: 2px;
}

/* ── Round history thread ── */
.round-history {
  display: none;
  flex-direction: column;
  gap: 0;
  margin-bottom: 14px;
}
.round-history.has-rounds { display: flex; }

.round-item {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 9px 12px;
  border-left: 2px solid rgba(201,162,39,0.15);
  margin-left: 6px;
  cursor: pointer;
  transition: all 0.15s;
  position: relative;
}
.round-item:hover { background: rgba(201,162,39,0.04); border-left-color: rgba(201,162,39,0.4); }
.round-item.active { background: rgba(201,162,39,0.06); border-left-color: var(--gold); }

.round-item::before {
  content: '';
  width: 7px; height: 7px;
  border-radius: 50%;
  background: rgba(201,162,39,0.25);
  flex-shrink: 0;
  margin-top: 5px;
  transition: background 0.15s;
}
.round-item.active::before { background: var(--gold); box-shadow: 0 0 6px rgba(201,162,39,0.4); }
.round-item:hover::before { background: rgba(201,162,39,0.5); }

.round-label {
  font-family: 'Cinzel', serif;
  font-size: 10px;
  color: var(--text-dim);
  letter-spacing: 1px;
  text-transform: uppercase;
  flex-shrink: 0;
  min-width: 62px;
}
.round-item.active .round-label { color: var(--gold); }

.round-query {
  font-size: 12.5px;
  color: var(--text);
  line-height: 1.5;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  opacity: 0.7;
}
.round-item.active .round-query { opacity: 1; }
.round-item:hover .round-query { opacity: 0.9; }

textarea#followup-query {
  width: 100%;
  min-height: 56px;
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: 10px;
  color: var(--text);
  font-family: 'Lora', Georgia, serif;
  font-size: 14px;
  padding: 12px 14px;
  resize: vertical;
  line-height: 1.7;
  transition: border-color 0.2s;
  outline: none;
  margin-bottom: 12px;
}
textarea#followup-query:focus { border-color: rgba(201,162,39,0.4); }
textarea#followup-query::placeholder { color: var(--text-dim); opacity: 0.4; }

.followup-card .convene-btn {
  padding: 10px 24px;
  background: linear-gradient(135deg, #c9a227, #a07a15);
  border: none;
  border-radius: 8px;
  color: #0a0a10;
  font-weight: 700;
  font-size: 12px;
  letter-spacing: 1.5px;
  cursor: pointer;
  transition: all 0.2s;
  font-family: 'Cinzel', serif;
  text-transform: uppercase;
}
.followup-card .convene-btn:hover:not(:disabled) { filter: brightness(1.1); transform: translateY(-1px); }
.followup-card .convene-btn:disabled { opacity: 0.5; cursor: not-allowed; transform: none; }

@media (max-width: 640px) {
  textarea#followup-query { font-size: 16px; }
  .followup-card .convene-btn { width: 100%; min-height: 44px; }
}