/* ==================== 職場霸凌千題問答集 互動網站 CSS ==================== */

/* --- 色彩主題變數區 (Three Color Themes) --- */

/* 1. 預設深色夜間模式 (Theme Dark) */
body.theme-dark {
  --bg-dark: #090D16;
  --bg-card: #151D2A;
  --bg-card-hover: #1E293B;
  --bg-bar: #0D131F;
  --bg-sub: #090E18;
  --border-color: rgba(255, 255, 255, 0.08);
  --border-hover: rgba(245, 158, 11, 0.4);
  
  --text-main: #F8FAFC;
  --text-muted: #94A3B8;
  --text-dim: #64748B;
  
  --accent-gold: #F59E0B;
  --accent-gold-glow: rgba(245, 158, 11, 0.15);
  --accent-emerald: #10B981;
  --accent-purple: #8B5CF6;
  --card-ans-bg: rgba(16, 185, 129, 0.08);
}

/* 2. 明亮淺色模式 (Theme Light) */
body.theme-light {
  --bg-dark: #F1F5F9;
  --bg-card: #FFFFFF;
  --bg-card-hover: #E2E8F0;
  --bg-bar: #E2E8F0;
  --bg-sub: #CBD5E1;
  --border-color: rgba(0, 0, 0, 0.12);
  --border-hover: rgba(217, 119, 6, 0.5);
  
  --text-main: #0F172A;
  --text-muted: #475569;
  --text-dim: #64748B;
  
  --accent-gold: #D97706;
  --accent-gold-glow: rgba(217, 119, 6, 0.12);
  --accent-emerald: #059669;
  --accent-purple: #7C3AED;
  --card-ans-bg: rgba(5, 150, 105, 0.08);
}

/* 3. 暖色護眼模式 (Theme Warm) */
body.theme-warm {
  --bg-dark: #F5F0E6;
  --bg-card: #FFFDF9;
  --bg-card-hover: #EFE8D8;
  --bg-bar: #EAE2D2;
  --bg-sub: #E2D7C3;
  --border-color: rgba(60, 40, 20, 0.12);
  --border-hover: rgba(180, 83, 9, 0.5);
  
  --text-main: #2C221E;
  --text-muted: #6E5D54;
  --text-dim: #8C7A70;
  
  --accent-gold: #B45309;
  --accent-gold-glow: rgba(180, 83, 9, 0.12);
  --accent-emerald: #047857;
  --accent-purple: #6D28D9;
  --card-ans-bg: rgba(4, 120, 87, 0.08);
}

:root {
  /* 十階段專屬色彩 */
  --stage-1: #14B8A6;
  --stage-2: #06B6D4;
  --stage-3: #3B82F6;
  --stage-4: #6366F1;
  --stage-5: #8B5CF6;
  --stage-6: #EC4899;
  --stage-7: #F43F5E;
  --stage-8: #F59E0B;
  --stage-9: #F97316;
  --stage-10: #10B981;

  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 18px;
  --shadow-main: 0 10px 25px -5px rgba(0, 0, 0, 0.2);
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
  font-family: 'Noto Sans TC', 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  background-color: var(--bg-dark);
  color: var(--text-main);
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  transition: background-color 0.4s ease, color 0.4s ease;
}

/* ==================== 頂部導覽列 (Header) ==================== */
.app-header {
  background: var(--bg-card);
  border-bottom: 1px solid var(--border-color);
  position: sticky;
  top: 0;
  z-index: 100;
  padding: 12px 24px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
}

.header-container {
  max-width: 1280px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 14px;
}

.brand-icon {
  background: linear-gradient(135deg, var(--accent-gold), #D97706);
  color: #FFF;
  width: 44px;
  height: 44px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 12px rgba(245, 158, 11, 0.3);
}

.brand-text h1 {
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: 0.5px;
  color: var(--text-main);
}

.brand-text .sub-title {
  font-size: 0.8rem;
  color: var(--text-muted);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

/* 主題切換器 */
.theme-selector {
  display: flex;
  align-items: center;
  gap: 6px;
  background: var(--bg-dark);
  padding: 4px 10px;
  border-radius: 20px;
  border: 1px solid var(--border-color);
}

.theme-label {
  display: flex;
  align-items: center;
  color: var(--accent-gold);
}

.theme-selector select {
  background: transparent;
  border: none;
  color: var(--text-main);
  font-size: 0.85rem;
  font-weight: 500;
  outline: none;
  cursor: pointer;
}

.theme-selector select option {
  background: var(--bg-card);
  color: var(--text-main);
}

.mode-toggle {
  background: var(--bg-dark);
  padding: 4px;
  border-radius: 30px;
  border: 1px solid var(--border-color);
  display: flex;
  gap: 4px;
}

.mode-btn {
  background: transparent;
  border: none;
  color: var(--text-muted);
  padding: 6px 14px;
  font-size: 0.85rem;
  font-weight: 500;
  border-radius: 20px;
  cursor: pointer;
  transition: var(--transition);
}

.mode-btn.active {
  background: var(--accent-gold);
  color: #FFF;
  font-weight: 700;
  box-shadow: 0 2px 8px rgba(245, 158, 11, 0.4);
}

.action-btn {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  color: var(--text-main);
  padding: 8px 16px;
  border-radius: var(--radius-md);
  font-size: 0.88rem;
  font-weight: 500;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 8px;
  transition: var(--transition);
}

.action-btn:hover {
  background: var(--bg-card-hover);
  border-color: var(--accent-gold);
  color: var(--accent-gold);
}

/* ==================== 導引控制面板 (Control Bar) ==================== */
.control-bar {
  background: var(--bg-bar);
  border-bottom: 1px solid var(--border-color);
  padding: 12px 24px;
}

.control-container {
  max-width: 1280px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}

.filter-group {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.88rem;
  color: var(--text-muted);
}

.filter-group select {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  color: var(--text-main);
  padding: 8px 14px;
  border-radius: var(--radius-sm);
  font-size: 0.88rem;
  outline: none;
  cursor: pointer;
  max-width: 380px;
}

.filter-group select:focus {
  border-color: var(--accent-gold);
}

.search-box {
  position: relative;
  flex: 1;
  max-width: 420px;
  display: flex;
  align-items: center;
}

.search-box svg {
  position: absolute;
  left: 12px;
  color: var(--text-dim);
}

.search-box input {
  width: 100%;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  color: var(--text-main);
  padding: 8px 12px 8px 38px;
  border-radius: var(--radius-sm);
  font-size: 0.88rem;
  outline: none;
  transition: var(--transition);
}

.search-box input:focus {
  border-color: var(--accent-gold);
  box-shadow: 0 0 0 3px var(--accent-gold-glow);
}

.search-results-dropdown {
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  margin-top: 6px;
  background: var(--bg-card);
  border: 1px solid var(--border-hover);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-main);
  max-height: 320px;
  overflow-y: auto;
  z-index: 90;
}

.search-item {
  padding: 10px 14px;
  border-bottom: 1px solid var(--border-color);
  cursor: pointer;
  transition: var(--transition);
}

.search-item:hover {
  background: var(--bg-card-hover);
  color: var(--accent-gold);
}

.search-item .item-meta {
  font-size: 0.75rem;
  color: var(--text-dim);
}

.random-btn {
  background: var(--accent-gold-glow);
  border: 1px solid var(--accent-gold);
  color: var(--accent-gold);
  padding: 8px 16px;
  border-radius: var(--radius-sm);
  font-size: 0.88rem;
  font-weight: 600;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 8px;
  transition: var(--transition);
}

.random-btn:hover {
  background: var(--accent-gold);
  color: #FFF;
  box-shadow: 0 4px 12px rgba(245, 158, 11, 0.3);
}

/* ==================== 樹枝歷史軌跡 (Trail Bar) ==================== */
.trail-bar {
  background: var(--bg-sub);
  border-bottom: 1px solid var(--border-color);
  padding: 8px 24px;
  font-size: 0.82rem;
}

.trail-container {
  max-width: 1280px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  gap: 8px;
  overflow-x: auto;
  white-space: nowrap;
}

.trail-label {
  color: var(--text-dim);
  font-weight: 500;
}

.trail-nodes {
  display: flex;
  align-items: center;
  gap: 6px;
}

.trail-chip {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  color: var(--text-muted);
  padding: 3px 10px;
  border-radius: 12px;
  cursor: pointer;
  transition: var(--transition);
}

.trail-chip:hover, .trail-chip.active {
  background: var(--accent-gold-glow);
  border-color: var(--accent-gold);
  color: var(--accent-gold);
}

.trail-sep {
  color: var(--text-dim);
  font-size: 0.75rem;
}

/* ==================== 主內容區網格 (Main Content) ==================== */
.main-content {
  flex: 1;
  padding: 24px;
}

.content-container {
  max-width: 1100px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 32px;
}

.section-title {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 14px;
}

.title-pulse {
  width: 8px;
  height: 8px;
  background-color: var(--accent-gold);
  border-radius: 50%;
  box-shadow: 0 0 10px var(--accent-gold);
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(245, 158, 11, 0.7); }
  70% { transform: scale(1.2); box-shadow: 0 0 0 8px rgba(245, 158, 11, 0); }
  100% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(245, 158, 11, 0); }
}

/* ==================== 主軸核心卡片 (Active Node Card) ==================== */
.active-card {
  background: var(--bg-card);
  border: 2px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 28px;
  box-shadow: var(--shadow-main);
  position: relative;
  transition: var(--transition);
}

.active-card:hover {
  border-color: var(--accent-gold);
}

.card-meta {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 16px;
}

.badge {
  padding: 4px 10px;
  border-radius: 6px;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.3px;
}

.stage-badge {
  background: var(--stage-1);
  color: #FFF;
}

.stance-badge {
  background: var(--accent-gold-glow);
  color: var(--accent-gold);
  border: 1px solid var(--accent-gold);
}

.subtopic-text {
  font-size: 0.85rem;
  color: var(--text-muted);
  font-weight: 500;
}

.q-id {
  margin-left: auto;
  font-family: 'Inter', monospace;
  font-weight: 700;
  color: var(--accent-gold);
  font-size: 0.95rem;
}

.card-question {
  cursor: pointer;
  padding: 12px;
  border-radius: var(--radius-md);
  background: rgba(0, 0, 0, 0.03);
  border: 1px dashed var(--border-color);
  transition: var(--transition);
}

.card-question:hover {
  background: var(--accent-gold-glow);
  border-color: var(--accent-gold);
}

.card-question .q-prefix {
  display: inline-block;
  background: var(--accent-gold);
  color: #FFF;
  font-weight: 900;
  padding: 2px 8px;
  border-radius: 4px;
  font-size: 0.85rem;
  margin-bottom: 8px;
}

.card-question h2 {
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--text-main);
  line-height: 1.5;
  margin-bottom: 12px;
}

.reveal-hint {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 6px;
  font-size: 0.85rem;
  color: var(--accent-gold);
  font-weight: 600;
}

.reveal-hint svg {
  transition: transform 0.3s ease;
}

.reveal-hint.revealed svg {
  transform: rotate(180deg);
}

.card-answer-box {
  overflow: hidden;
  max-height: 1000px;
  opacity: 1;
  transition: all 0.4s cubic-bezier(0, 1, 0, 1);
}

.card-answer-box.collapsed {
  max-height: 0;
  opacity: 0;
  padding: 0;
}

.a-divider {
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--border-color), transparent);
  margin: 20px 0;
}

.card-answer {
  background: var(--card-ans-bg);
  border-left: 4px solid var(--accent-emerald);
  padding: 16px 20px;
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  margin-bottom: 16px;
}

.card-answer .a-prefix {
  display: inline-block;
  background: var(--accent-emerald);
  color: #FFF;
  font-weight: 900;
  padding: 2px 8px;
  border-radius: 4px;
  font-size: 0.85rem;
  margin-bottom: 8px;
}

.card-answer p {
  font-size: 1.05rem;
  color: var(--text-main);
  line-height: 1.7;
}

.card-source {
  font-size: 0.85rem;
  color: var(--text-dim);
  background: var(--bg-dark);
  padding: 10px 14px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-color);
}

.card-source .src-label {
  color: var(--text-muted);
  font-weight: 600;
}

/* ==================== 樹枝延伸與跳躍選擇卡片 (Choices Grid) ==================== */
.section-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 12px;
}

.sub-hint {
  font-size: 0.82rem;
  color: var(--text-dim);
}

.choices-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 16px;
}

.choice-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 18px;
  cursor: pointer;
  position: relative;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: var(--transition);
}

.choice-card:hover {
  background: var(--bg-card-hover);
  border-color: var(--accent-gold);
  transform: translateY(-3px);
  box-shadow: var(--shadow-main);
}

.choice-card .choice-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 10px;
}

.choice-card .type-tag {
  font-size: 0.72rem;
  font-weight: 700;
  padding: 2px 8px;
  border-radius: 4px;
  background: var(--bg-dark);
  color: var(--text-muted);
}

.choice-card.cross-card .type-tag {
  background: rgba(139, 92, 246, 0.15);
  color: var(--accent-purple);
  border: 1px solid rgba(139, 92, 246, 0.3);
}

.choice-card .choice-q {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-main);
  line-height: 1.5;
  margin-bottom: 14px;
}

.choice-card .choice-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.78rem;
  color: var(--accent-gold);
  font-weight: 500;

  border-top: 1px dashed var(--border-color);
  padding-top: 10px;
}

.choice-card .choice-footer span {
  display: flex;
  align-items: center;
  gap: 4px;
}

/* ==================== 末端區塊 (End Section) ==================== */
.end-section {
  background: var(--accent-gold-glow);
  border: 1px solid var(--accent-gold);
  border-radius: var(--radius-lg);
  padding: 24px;
}

.end-badge {
  display: inline-block;
  background: var(--accent-gold);
  color: #FFF;
  font-weight: 900;
  padding: 2px 10px;
  border-radius: 12px;
  font-size: 0.78rem;
  margin-bottom: 8px;
}

.end-card h3 {
  font-size: 1.1rem;
  color: var(--text-main);
  margin-bottom: 6px;
}

.end-card p {
  font-size: 0.88rem;
  color: var(--text-muted);
  margin-bottom: 16px;
}

/* ==================== Modal 彈窗與立場切分樣式 ==================== */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.7);
  backdrop-filter: blur(8px);
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
}

.modal-overlay.hidden {
  display: none;
}

.modal-container {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  width: 100%;
  max-width: 960px;
  max-height: 85vh;
  display: flex;
  flex-direction: column;
  box-shadow: var(--shadow-main);
}

.modal-header {
  padding: 20px 24px;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.modal-header h2 {
  font-size: 1.2rem;
  color: var(--text-main);
}

.close-btn {
  background: transparent;
  border: none;
  color: var(--text-muted);
  font-size: 1.5rem;
  cursor: pointer;
}

.modal-body {
  padding: 24px;
  overflow-y: auto;
}

.modal-desc {
  font-size: 0.88rem;
  color: var(--text-muted);
  margin-bottom: 16px;
}

.modal-section-title {
  grid-column: 1 / -1;
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--accent-gold);
  border-bottom: 1px dashed var(--border-color);
  padding-bottom: 8px;
  margin-top: 14px;
  margin-bottom: 6px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.tree-overview-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 14px;
}

.stage-card-node {
  background: var(--bg-dark);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 14px;
  cursor: pointer;
  transition: var(--transition);
}

.stage-card-node:hover {
  border-color: var(--accent-gold);
  transform: translateY(-2px);
}

.stage-card-node .s-num {
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--accent-gold);
  margin-bottom: 4px;
}

.stage-card-node .s-name {
  font-size: 0.92rem;
  font-weight: 700;
  color: var(--text-main);
}

/* ==================== 頁尾 (Footer) ==================== */
.app-footer {
  background: var(--bg-card);
  border-top: 1px solid var(--border-color);
  padding: 20px 24px;
  margin-top: auto;
  text-align: center;
  font-size: 0.82rem;
  color: var(--text-dim);
}

.app-footer .copyright {
  margin-top: 4px;
  color: var(--text-muted);
}

.hidden {
  display: none !important;
}

/* 響應式調整 */
@media (max-width: 768px) {
  .app-header { padding: 12px 16px; }
  .header-container { flex-direction: column; align-items: flex-start; }
  .control-bar { padding: 12px 16px; }
  .control-container { flex-direction: column; align-items: stretch; }
  .search-box { max-width: 100%; }
  .filter-group select { max-width: 100%; }
  .active-card { padding: 18px; }
  .active-card h2 { font-size: 1.15rem; }
}