/* ========== CSS Variables ========== */
:root {
  --primary: #B8845C;
  --primary-light: #D4A574;
  --primary-dark: #8B6340;
  --bg: #F5F0EB;
  --card-bg: #FFFFFF;
  --header-bg: #1E1A16;
  --text: #2C2420;
  --text-secondary: #8B7B6B;
  --text-light: #B0A090;
  --border: #E8DFD5;
  --success: #5B8C5A;
  --warning: #C75B3A;
  --danger: #A0453A;
  --tag-bg: #EDE7DF;
  --radius: 16px;
  --radius-lg: 24px;
}

/* ========== Reset ========== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html {
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  overflow-x: hidden;
}

button { cursor: pointer; border: none; background: none; font: inherit; color: inherit; }
textarea { border: none; outline: none; resize: none; font: inherit; background: none; }

/* ========== Views ========== */
.view { display: none; }
.view.active { display: block; }

/* ========== Tab Bar ========== */
.tab-bar {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  display: flex;
  background: var(--card-bg);
  border-top: 1px solid var(--border);
  padding: 6px 0 max(6px, env(safe-area-inset-bottom));
  z-index: 100;
}

.tab {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
  padding: 6px 0;
  color: var(--text-light);
  font-size: 11px;
  font-weight: 500;
  transition: color 0.2s;
}

.tab.active { color: var(--primary); }
.tab svg { stroke: currentColor; }

/* ========== Hero ========== */
.hero {
  background: var(--header-bg);
  padding: 40px 24px 32px;
  border-radius: 0 0 24px 24px;
}

.hero-brand {
  font-size: 11px;
  letter-spacing: 3px;
  color: rgba(255,255,255,0.3);
  text-transform: uppercase;
  margin-bottom: 24px;
}

.hero-slogan { margin-bottom: 32px; }

.slogan-line {
  font-size: 36px;
  font-weight: 700;
  color: #FFFFFF;
  line-height: 1.35;
  font-family: 'Playfair Display', Georgia, serif;
}

/* ---- Input Bar ---- */
.input-bar {
  display: flex;
  align-items: flex-end;
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: 20px;
  padding: 12px 12px 12px 20px;
  gap: 10px;
}

.input-field {
  flex: 1;
  font-size: 15px;
  color: #FFFFFF;
  min-height: 24px;
  max-height: 120px;
  line-height: 1.5;
}

.input-field::placeholder { color: rgba(255,255,255,0.3); }

.input-send {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: rgba(255,255,255,0.12);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  color: rgba(255,255,255,0.25);
  transition: all 0.25s;
}

.input-send:not(:disabled) {
  background: var(--primary);
  color: #FFFFFF;
}

/* ---- Quick Topics ---- */
.quick-topics {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 20px;
}

.quick-chip {
  font-size: 12px;
  color: rgba(255,255,255,0.5);
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: 20px;
  padding: 6px 14px;
  transition: all 0.2s;
  white-space: nowrap;
}

.quick-chip:hover {
  color: rgba(255,255,255,0.8);
  border-color: rgba(255,255,255,0.3);
}

/* ========== Section Header ========== */
.section-header {
  padding: 28px 24px 12px;
}

.section-title {
  font-size: 18px;
  font-weight: 600;
  color: var(--text);
  font-family: 'Playfair Display', Georgia, serif;
}

/* ========== Role Cards ========== */
.roles-list {
  padding: 0 24px;
  padding-bottom: 80px;
}

.role-card {
  border-radius: var(--radius-lg);
  padding: 24px 28px 20px;
  margin-bottom: 16px;
  color: #FFFFFF;
  position: relative;
  overflow: hidden;
  min-height: 180px;
  display: flex;
  flex-direction: column;
}

.role-tag-label {
  font-size: 10px;
  letter-spacing: 2px;
  color: rgba(255,255,255,0.3);
  text-transform: uppercase;
  margin-bottom: 14px;
}

.role-name-row {
  display: flex;
  align-items: baseline;
  gap: 8px;
  margin-bottom: 10px;
}

.role-name {
  font-size: 22px;
  font-weight: 600;
  font-family: 'Playfair Display', Georgia, serif;
}

.role-slogan {
  font-size: 14px;
  color: rgba(255,255,255,0.5);
}

.role-intro {
  font-size: 13px;
  line-height: 1.6;
  color: rgba(255,255,255,0.4);
  max-width: 70%;
  position: relative;
  z-index: 1;
}

.role-bottom {
  margin-top: auto;
  padding-top: 14px;
  max-width: 60%;
  position: relative;
  z-index: 1;
}

.role-bottom-tag {
  font-size: 11px;
  color: rgba(255,255,255,0.25);
  letter-spacing: 1px;
}

.role-emoji {
  position: absolute;
  right: 10px;
  bottom: 10px;
  font-size: 72px;
  opacity: 0.12;
  pointer-events: none;
}

/* ========== Discussion View ========== */
.rt-header {
  display: flex;
  align-items: center;
  padding: 12px 16px;
  background: var(--card-bg);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 50;
}

.rt-back {
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text);
}

.rt-header-center { flex: 1; text-align: center; }

.rt-case-label {
  font-size: 11px;
  letter-spacing: 3px;
  color: var(--text-light);
  text-transform: uppercase;
}

.rt-header-right { display: flex; align-items: center; }

.rt-search-toggle {
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 4px 12px;
  border-radius: 12px;
  background: rgba(44,36,32,0.06);
  font-size: 12px;
  color: var(--text-secondary);
}

.rt-search-toggle.off .search-icon::after { content: '🔇'; }

.search-icon { font-size: 13px; }
.search-label { font-size: 12px; }

/* Topic Section */
.rt-topic-section {
  padding: 20px 24px 12px;
}

.rt-topic-row {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
}

.rt-topic-title {
  font-size: 20px;
  font-weight: 600;
  color: var(--text);
  line-height: 1.4;
  font-family: 'Playfair Display', Georgia, serif;
  flex: 1;
}

.rt-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 14px;
  border-radius: 12px;
  font-size: 12px;
  color: var(--text-secondary);
  white-space: nowrap;
  flex-shrink: 0;
}

.rt-badge.discussing { background: rgba(91,140,90,0.12); }
.rt-badge.generating { background: rgba(184,132,92,0.12); }
.rt-badge.done { background: rgba(44,36,32,0.08); }

.badge-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--success);
  animation: pulse 1.5s infinite;
}

.rt-badge.generating .badge-dot { background: var(--primary); }

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.3; }
}

/* Search Status */
.rt-search-status {
  display: flex;
  align-items: center;
  gap: 5px;
  margin-top: 8px;
}

.search-status-text {
  font-size: 13px;
  color: var(--text-light);
  margin-left: 6px;
}

/* ========== Chat Messages ========== */
.chat-container {
  padding: 8px 0;
  padding-bottom: 24px;
}

.round-divider {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 24px 24px 12px;
}

.round-line {
  flex: 1;
  height: 1px;
  background: var(--border);
}

.round-label {
  font-size: 13px;
  color: var(--primary);
  font-weight: 600;
  white-space: nowrap;
}

.user-q {
  padding: 0 24px 10px;
  display: flex;
  justify-content: flex-end;
}

.user-q-bubble {
  display: inline-block;
  background: var(--primary);
  color: #FFFFFF;
  padding: 10px 16px;
  border-radius: 16px 16px 4px 16px;
  font-size: 15px;
  line-height: 1.5;
  max-width: 75%;
}

.chat-msg {
  display: flex;
  align-items: flex-start;
  padding: 8px 24px;
  animation: msgFadeIn 0.3s ease;
}

@keyframes msgFadeIn {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

.chat-avatar {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  flex-shrink: 0;
}

.chat-body {
  margin-left: 10px;
  flex: 1;
  min-width: 0;
}

.chat-name {
  font-size: 12px;
  color: var(--text-secondary);
  margin-bottom: 4px;
  display: block;
}

.chat-bubble {
  background: var(--card-bg);
  border-radius: 4px 16px 16px 16px;
  padding: 12px 16px;
  box-shadow: 0 1px 6px rgba(44,36,32,0.04);
  display: inline-block;
  max-width: 100%;
}

.chat-msg.speaking .chat-bubble {
  box-shadow: 0 2px 12px rgba(184,132,92,0.1);
}

.chat-text {
  font-size: 15px;
  line-height: 1.7;
  color: var(--text);
  word-break: break-word;
}

/* ========== Typing Indicator ========== */
.typing-wrap {
  display: flex;
  gap: 5px;
  padding: 4px 0;
}

.typing-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--primary);
  animation: typingAnim 1.2s infinite;
}

.typing-dot:nth-child(2) { animation-delay: 0.2s; }
.typing-dot:nth-child(3) { animation-delay: 0.4s; }

@keyframes typingAnim {
  0%, 60%, 100% { opacity: 0.25; transform: scale(0.8); }
  30% { opacity: 1; transform: scale(1); }
}

/* ========== Status Tip ========== */
.status-tip {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 24px 0;
}

.status-tip-text {
  font-size: 14px;
  color: var(--text-secondary);
  margin-left: 6px;
}

/* ========== Follow-up ========== */
.followup {
  margin: 12px 24px 0;
  background: var(--card-bg);
  border-radius: var(--radius-lg);
  padding: 24px;
  box-shadow: 0 2px 16px rgba(44,36,32,0.05);
}

.followup-hint {
  font-size: 14px;
  color: var(--text-secondary);
  text-align: center;
  line-height: 1.5;
  margin-bottom: 14px;
}

.followup-input-box {
  background: var(--bg);
  border-radius: var(--radius);
  padding: 14px;
  margin-bottom: 14px;
}

.followup-input {
  width: 100%;
  min-height: 40px;
  font-size: 15px;
  line-height: 1.5;
  color: var(--text);
}

.followup-input::placeholder { color: var(--text-light); }

.followup-actions {
  display: flex;
  gap: 12px;
}

.btn-continue {
  flex: 1;
  height: 44px;
  line-height: 44px;
  text-align: center;
  background: var(--primary);
  border-radius: 22px;
  color: #FFFFFF;
  font-size: 15px;
  font-weight: 600;
  transition: opacity 0.2s;
}

.btn-continue:hover { opacity: 0.9; }

.btn-report {
  flex: 1;
  height: 44px;
  line-height: 44px;
  text-align: center;
  border: 2px solid var(--success);
  border-radius: 22px;
  color: var(--success);
  font-size: 15px;
  font-weight: 600;
  transition: all 0.2s;
}

.btn-report:hover {
  background: var(--success);
  color: #FFFFFF;
}

/* ========== Decision Compass / Synthesis ========== */
.synthesis {
  margin: 24px 24px 0;
}

.synthesis-header {
  text-align: center;
  margin-bottom: 20px;
}

.synthesis-title {
  font-size: 20px;
  font-weight: 600;
  color: var(--primary);
  font-family: 'Playfair Display', Georgia, serif;
}

.synthesis-card {
  background: var(--card-bg);
  border-radius: var(--radius-lg);
  padding: 24px;
  box-shadow: 0 4px 24px rgba(44,36,32,0.06);
}

.synthesis-summary {
  font-size: 16px;
  font-weight: 500;
  line-height: 1.6;
  color: var(--text);
  padding-bottom: 16px;
  margin-bottom: 16px;
  border-bottom: 1px solid var(--border);
  font-family: 'Playfair Display', Georgia, serif;
}

.synthesis-block { margin-bottom: 20px; }
.synthesis-block:last-child { margin-bottom: 0; }

.synthesis-label {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 15px;
  font-weight: 600;
  margin-bottom: 8px;
}

.synthesis-label.consensus { color: var(--success); }
.synthesis-label.divergence { color: var(--warning); }
.synthesis-label.risk { color: var(--danger); }
.synthesis-label.action { color: var(--primary); }

.label-icon {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  font-weight: 700;
  flex-shrink: 0;
}

.synthesis-label.consensus .label-icon { background: rgba(91,140,90,0.12); color: var(--success); }
.synthesis-label.divergence .label-icon { background: rgba(199,91,58,0.12); color: var(--warning); }
.synthesis-label.risk .label-icon { background: rgba(160,69,58,0.12); color: var(--danger); }
.synthesis-label.action .label-icon { background: rgba(184,132,92,0.12); color: var(--primary); }

.synthesis-point {
  font-size: 14px;
  line-height: 1.7;
  color: var(--text);
  padding: 3px 0 3px 32px;
}

.score-section {
  text-align: center;
  padding-top: 16px;
  border-top: 1px solid var(--border);
  margin-top: 20px;
}

.score-row {
  display: flex;
  align-items: baseline;
  justify-content: center;
  gap: 2px;
}

.score-num {
  font-size: 48px;
  font-weight: 800;
  color: var(--primary);
  line-height: 1;
}

.score-unit {
  font-size: 18px;
  color: var(--text-light);
}

.score-desc {
  font-size: 13px;
  color: var(--text-secondary);
  margin-top: 4px;
}

/* ========== Bottom Bar ========== */
.bottom-bar {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  display: flex;
  gap: 12px;
  padding: 16px 24px;
  padding-bottom: calc(16px + env(safe-area-inset-bottom));
  background: var(--card-bg);
  box-shadow: 0 -2px 16px rgba(44,36,32,0.06);
  z-index: 50;
}

.btn-share {
  flex: 1;
  height: 48px;
  line-height: 48px;
  text-align: center;
  background: var(--primary);
  border-radius: 24px;
  color: #FFFFFF;
  font-size: 15px;
  font-weight: 600;
  transition: opacity 0.2s;
}

.btn-share:hover { opacity: 0.9; }

.btn-new {
  flex: 1;
  height: 48px;
  line-height: 48px;
  text-align: center;
  border: 1px solid var(--border);
  border-radius: 24px;
  color: var(--text);
  font-size: 15px;
  font-weight: 600;
  transition: background 0.2s;
}

.btn-new:hover { background: var(--bg); }

/* ========== History View ========== */
.history-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 28px 24px 14px;
}

.header-title {
  font-size: 20px;
  font-weight: 600;
  color: var(--text);
  font-family: 'Playfair Display', Georgia, serif;
}

.header-action {
  font-size: 13px;
  color: var(--text-light);
  padding: 6px 14px;
}

.header-action:hover { color: var(--danger); }

/* Empty State */
.empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 120px 24px;
}

.empty-icon {
  font-size: 48px;
  color: var(--border);
  margin-bottom: 16px;
}

.empty-text {
  font-size: 16px;
  color: var(--text-secondary);
  margin-bottom: 8px;
}

.empty-hint {
  font-size: 13px;
  color: var(--text-light);
}

/* History List */
.history-list {
  padding: 8px 24px;
  padding-bottom: 80px;
}

.history-card {
  display: flex;
  align-items: stretch;
  background: var(--card-bg);
  border-radius: var(--radius);
  margin-bottom: 12px;
  box-shadow: 0 1px 8px rgba(44,36,32,0.04);
  overflow: hidden;
  cursor: pointer;
  transition: box-shadow 0.2s;
}

.history-card:hover {
  box-shadow: 0 2px 16px rgba(44,36,32,0.08);
}

.card-main {
  flex: 1;
  padding: 16px 18px;
  min-width: 0;
}

.card-topic {
  font-size: 15px;
  font-weight: 500;
  color: var(--text);
  line-height: 1.4;
  margin-bottom: 8px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.card-meta {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 4px;
}

.card-badge {
  font-size: 11px;
  color: var(--primary);
  background: rgba(184,132,92,0.1);
  padding: 2px 10px;
  border-radius: 8px;
}

.card-score {
  font-size: 11px;
  color: var(--success);
  font-weight: 500;
}

.card-time {
  font-size: 11px;
  color: var(--text-light);
  margin-left: auto;
}

.card-summary {
  font-size: 12px;
  color: var(--text-secondary);
  line-height: 1.5;
  margin-top: 4px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.card-delete {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  flex-shrink: 0;
  border-left: 1px solid var(--border);
  color: var(--text-light);
  font-size: 20px;
  transition: color 0.2s;
}

.card-delete:hover { color: var(--danger); }

/* ========== RESPONSIVE — Tablet (768px+) ========== */
@media (min-width: 768px) {
  .hero {
    padding: 60px 48px 44px;
    border-radius: 0 0 32px 32px;
  }

  .slogan-line { font-size: 48px; }

  .section-header { padding: 36px 48px 16px; }
  .roles-list { padding: 0 48px; padding-bottom: 80px; }

  .roles-list {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
  }

  .role-card { margin-bottom: 0; min-height: 200px; }

  .chat-msg { padding: 8px 48px; }
  .round-divider { padding: 24px 48px 12px; }
  .user-q { padding: 0 48px 10px; }
  .rt-topic-section { padding: 24px 48px 12px; }
  .followup { margin: 12px 48px 0; }
  .synthesis { margin: 24px 48px 0; }
  .bottom-bar { padding: 16px 48px; }

  .history-list { padding: 8px 48px; padding-bottom: 80px; }
  .history-header { padding: 32px 48px 16px; }
  .empty-state { padding: 160px 48px; }
}

/* ========== RESPONSIVE — Desktop (1024px+) ========== */
@media (min-width: 1024px) {
  body {
    max-width: 1200px;
    margin: 0 auto;
  }

  .hero {
    padding: 72px 64px 52px;
    border-radius: 0 0 36px 36px;
  }

  .slogan-line { font-size: 56px; }

  .input-bar { max-width: 600px; }

  .section-header { padding: 40px 64px 16px; }

  .roles-list {
    padding: 0 64px;
    grid-template-columns: repeat(3, 1fr);
  }

  .chat-container { max-width: 800px; margin: 0 auto; }
  .rt-topic-section { max-width: 800px; margin: 0 auto; padding: 28px 24px 12px; }
  .followup { max-width: 800px; margin: 12px auto 0; }
  .synthesis { max-width: 800px; margin: 24px auto 0; }

  .chat-msg { padding: 8px 24px; }
  .round-divider { padding: 24px 24px 12px; }
  .user-q { padding: 0 24px 10px; }

  .bottom-bar {
    max-width: 800px;
    left: 50%;
    transform: translateX(-50%);
    border-radius: 24px 24px 0 0;
  }

  .tab-bar {
    max-width: 1200px;
    left: 50%;
    transform: translateX(-50%);
  }

  .history-list {
    padding: 8px 64px;
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
  }

  .history-card { margin-bottom: 0; }
  .history-header { padding: 36px 64px 16px; }
}

/* ========== RESPONSIVE — Wide Desktop (1400px+) ========== */
@media (min-width: 1400px) {
  .slogan-line { font-size: 64px; }
}

/* ========== Auto-grow textarea ========== */
textarea {
  overflow-y: hidden;
}