/* ========== 老于家家谱 — 样式表 ========== */

:root {
  --bg: #f5f0e8;
  --card-bg: #fffdf7;
  --primary: #8b4513;
  --primary-light: #a0522d;
  --primary-dark: #3a1f0d;
  --accent: #c41e3a;
  --gold: #b8860b;
  --border: #d4c5a9;
  --border-light: #e8dcc8;
  --text: #2c1810;
  --text-light: #6b5a4e;
  --text-muted: #9a8b7a;
  --male: #3a6b8c;
  --male-light: #e8f0f6;
  --female: #c47a8b;
  --female-light: #fdf0f3;
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.05);
  --shadow: 0 2px 12px rgba(0,0,0,0.06);
  --shadow-lg: 0 8px 30px rgba(0,0,0,0.12);
  --radius: 12px;
  --radius-sm: 8px;
  --transition: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
  font-family: "Noto Serif SC", "Songti SC", "SimSun", "STSong", "PingFang SC", "Microsoft YaHei", serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.7;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}

/* ===== 顶部导航 ===== */
.header {
  background: linear-gradient(135deg, #3a1f0d 0%, #5c3317 50%, #4a2512 100%);
  color: #f5e6d3;
  padding: 20px 32px;
  text-align: center;
  box-shadow: 0 2px 20px rgba(0,0,0,0.2);
  position: sticky;
  top: 0;
  z-index: 100;
}

.header h1 {
  font-size: 2rem;
  font-weight: 700;
  letter-spacing: 6px;
  margin-bottom: 2px;
  text-shadow: 0 1px 4px rgba(0,0,0,0.3);
}

.header .subtitle {
  font-size: 0.85rem;
  opacity: 0.7;
  letter-spacing: 3px;
}

/* ===== Tab 切换 ===== */
.tabs {
  display: flex;
  gap: 0;
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 20px;
}

.tab-btn {
  flex: 1;
  padding: 14px 16px;
  background: #ede4d3;
  border: none;
  border-radius: var(--radius) var(--radius) 0 0;
  font-size: 0.92rem;
  cursor: pointer;
  color: var(--text-light);
  transition: var(--transition);
  font-family: inherit;
  position: relative;
  margin-right: 3px;
}

.tab-btn:last-child { margin-right: 0; }

.tab-btn:hover {
  background: #e8dcc8;
  color: var(--primary);
}

.tab-btn.active {
  background: var(--card-bg);
  color: var(--primary);
  font-weight: 700;
  box-shadow: 0 -2px 8px rgba(0,0,0,0.06);
}

/* ===== 主容器 ===== */
.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 20px 40px;
}

.panel {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-top: none;
  border-radius: 0 0 var(--radius) var(--radius);
  padding: 28px;
  box-shadow: var(--shadow);
  display: none;
  animation: panelIn 0.25s ease;
}

.panel.active { display: block; }

@keyframes panelIn {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ===== 搜索栏 ===== */
.search-bar {
  display: flex;
  gap: 12px;
  margin-bottom: 20px;
  flex-wrap: wrap;
  align-items: center;
}

.search-bar input,
.search-bar select {
  padding: 10px 16px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  font-family: inherit;
  background: #fff;
  transition: var(--transition);
  color: var(--text);
}

.search-bar input {
  flex: 1;
  min-width: 200px;
}

.search-bar input:focus,
.search-bar select:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(139,69,19,0.08);
}

.search-bar input::placeholder { color: var(--text-muted); }

/* ===== 统计卡片 ===== */
.stats {
  display: flex;
  gap: 12px;
  margin-bottom: 20px;
  flex-wrap: wrap;
}

.stat-card {
  flex: 1;
  min-width: 100px;
  background: linear-gradient(135deg, #fdfaf2, #f7f0e3);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-sm);
  padding: 16px 18px;
  text-align: center;
  transition: var(--transition);
}

.stat-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow);
}

.stat-card .num {
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--primary);
  line-height: 1.2;
}

.stat-card .label {
  font-size: 0.78rem;
  color: var(--text-light);
  margin-top: 4px;
  letter-spacing: 1px;
}

/* ===== 表格 ===== */
.table-wrapper {
  overflow-x: auto;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-light);
  max-height: 65vh;
  overflow-y: auto;
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.88rem;
}

thead {
  position: sticky;
  top: 0;
  z-index: 10;
}

thead th {
  background: var(--primary-dark);
  color: #f5e6d3;
  padding: 12px 12px;
  text-align: left;
  font-weight: 600;
  cursor: pointer;
  user-select: none;
  white-space: nowrap;
  font-size: 0.82rem;
  letter-spacing: 0.5px;
}

thead th:hover { background: #4a2f1d; }

thead th .sort-icon {
  margin-left: 3px;
  font-size: 0.65rem;
  opacity: 0.4;
}

thead th.sorted .sort-icon { opacity: 1; color: #e8c876; }

tbody td {
  padding: 10px 12px;
  border-bottom: 1px solid #f0e8d8;
  vertical-align: middle;
}

tbody tr {
  cursor: pointer;
  transition: var(--transition);
}

tbody tr:hover {
  background: #fdf8f0;
}

tbody tr:last-child td { border-bottom: none; }

.member-name {
  font-weight: 600;
  color: var(--primary);
}

.generation-badge {
  display: inline-block;
  background: #f0e8d8;
  color: var(--primary);
  padding: 2px 10px;
  border-radius: 20px;
  font-size: 0.78rem;
  font-weight: 600;
}

.gender-male { color: var(--male); }
.gender-female { color: var(--female); }

.code-cell {
  font-family: "SF Mono", "Fira Code", monospace;
  font-size: 0.8rem;
  color: var(--text-muted);
  letter-spacing: 0.5px;
}

/* ===== 族谱树 ===== */
.tree-controls {
  display: flex;
  gap: 10px;
  margin-bottom: 20px;
  flex-wrap: wrap;
  align-items: center;
}

.tree-controls button {
  padding: 8px 20px;
  background: var(--primary);
  color: #fff;
  border: none;
  border-radius: 6px;
  cursor: pointer;
  font-family: inherit;
  font-size: 0.84rem;
  transition: var(--transition);
  letter-spacing: 0.5px;
}

.tree-controls button:hover {
  background: var(--primary-light);
  transform: translateY(-1px);
}

.tree-controls button.secondary {
  background: #fff;
  color: var(--primary);
  border: 1px solid var(--border);
}

.tree-controls button.secondary:hover {
  background: #fdf8f0;
}

.tree-hint {
  margin-left: auto;
  font-size: 0.82rem;
  color: var(--text-muted);
}

.entry-toolbar {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 14px;
  color: var(--text-light);
  font-size: .84rem;
}

.entry-toggle,
.entry-actions button {
  padding: 9px 16px;
  color: #fff;
  border: 0;
  border-radius: 6px;
  background: var(--primary);
  cursor: pointer;
}

.entry-form {
  display: none;
  grid-template-columns: repeat(4, minmax(140px, 1fr));
  gap: 12px;
  margin-bottom: 18px;
  padding: 16px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: rgba(250, 245, 232, .82);
}

.entry-form.show { display: grid; }
.entry-form label { color: var(--text-light); font-size: .8rem; }
.entry-form input,
.entry-form select {
  width: 100%;
  margin-top: 5px;
  padding: 9px 10px;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: #fff;
  font-family: inherit;
}
.entry-note { grid-column: span 2; }
.entry-actions {
  grid-column: 1 / -1;
  display: flex;
  align-items: center;
  gap: 10px;
}
.entry-actions button.secondary { color: var(--text); background: #eee6d8; }
#entryMessage { color: var(--primary); font-size: .84rem; }

.tree-container {
  overflow: auto;
  padding: 10px 0;
  max-height: 70vh;
}

/* 树结构 */
.tree-root {
  transform-origin: top center;
  transition: transform 180ms ease;
  display: flex;
  justify-content: center;
}

.tree-node {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.tree-children {
  display: flex;
  gap: 0;
  justify-content: center;
  position: relative;
  padding-top: 30px;
}

.tree-children::before {
  content: '';
  position: absolute;
  top: 0;
  left: 15%;
  right: 15%;
  height: 2px;
  background: var(--border);
}

.tree-child {
  display: flex;
  flex-direction: column;
  align-items: center;
  position: relative;
  padding: 0 4px;
}

.tree-child-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  position: relative;
  padding-top: 30px;
}

.tree-child-inner::before {
  content: '';
  position: absolute;
  top: 0;
  left: 50%;
  width: 2px;
  height: 30px;
  background: var(--border);
}

/* 成员卡片 */
.member-card {
  background: #fff;
  border: 2px solid var(--border-light);
  border-radius: var(--radius-sm);
  padding: 10px 16px;
  min-width: 80px;
  text-align: center;
  cursor: pointer;
  transition: all 0.25s ease;
  box-shadow: var(--shadow-sm);
  position: relative;
  white-space: nowrap;
}

.member-card:hover {
  border-color: var(--primary);
  box-shadow: 0 6px 20px rgba(139,69,19,0.18);
  transform: translateY(-3px);
  z-index: 5;
}

.member-card.male { border-left: 3px solid var(--male); }
.member-card.female { border-left: 3px solid var(--female); }

.member-card .name {
  font-weight: 700;
  font-size: 0.92rem;
  line-height: 1.3;
}

.member-card .name.male { color: var(--male); }
.member-card .name.female { color: var(--female); }

.member-card .spouse {
  font-size: 0.73rem;
  color: var(--text-light);
  margin-top: 2px;
}

.member-card .gen-info {
  font-size: 0.68rem;
  color: var(--text-muted);
  margin-top: 2px;
}

.member-card .has-children {
  position: absolute;
  bottom: -14px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 1px 10px;
  font-size: 0.68rem;
  cursor: pointer;
  color: var(--text-light);
  white-space: nowrap;
  transition: var(--transition);
  z-index: 2;
}

.member-card .has-children:hover {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
}

/* ===== 详情弹窗 ===== */
.modal-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.45);
  z-index: 200;
  justify-content: center;
  align-items: center;
  padding: 20px;
  animation: fadeIn 0.2s ease;
}

.modal-overlay.show { display: flex; }

@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }

.modal {
  background: var(--card-bg);
  border-radius: 16px;
  padding: 32px;
  max-width: 500px;
  width: 100%;
  box-shadow: var(--shadow-lg);
  animation: slideUp 0.3s ease;
  position: relative;
  max-height: 85vh;
  overflow-y: auto;
}

@keyframes slideUp {
  from { transform: translateY(30px); opacity: 0; }
  to { transform: translateY(0); opacity: 1; }
}

.modal .close-btn {
  position: absolute;
  top: 10px;
  right: 14px;
  background: none;
  border: none;
  font-size: 1.5rem;
  cursor: pointer;
  color: var(--text-muted);
  padding: 4px 10px;
  border-radius: 4px;
  line-height: 1;
  transition: var(--transition);
}

.modal .close-btn:hover {
  background: #f0e8d8;
  color: var(--text);
}

.modal h2 {
  font-size: 1.5rem;
  margin-bottom: 4px;
  padding-right: 30px;
}

.modal .modal-gen {
  display: inline-block;
  background: #f0e8d8;
  padding: 3px 14px;
  border-radius: 20px;
  font-size: 0.82rem;
  margin-bottom: 16px;
  color: var(--primary);
  font-weight: 600;
}

.modal .detail-grid {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 4px 16px;
}

.modal .detail-label {
  color: var(--text-light);
  font-size: 0.84rem;
  padding: 6px 0;
}

.modal .detail-value {
  font-size: 0.92rem;
  padding: 6px 0;
  font-weight: 500;
}

.modal .action-btns {
  display: flex;
  gap: 10px;
  margin-top: 20px;
}

.modal .action-btns button {
  flex: 1;
  padding: 10px 16px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  cursor: pointer;
  font-family: inherit;
  font-size: 0.88rem;
  transition: var(--transition);
  background: #fff;
}

.modal .action-btns button.primary {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
}

.modal .action-btns button:hover {
  opacity: 0.85;
  transform: translateY(-1px);
}

.modal .code-display {
  margin-top: 12px;
  background: #f8f4ec;
  border-radius: 6px;
  padding: 10px 14px;
  font-family: "SF Mono", "Fira Code", monospace;
  font-size: 0.82rem;
  color: var(--text-muted);
  word-break: break-all;
}

.modal .code-display .label {
  font-size: 0.7rem;
  color: var(--text-muted);
  display: block;
  margin-bottom: 2px;
}

/* ===== 圆形分支图 ===== */
.circle-diagram-container {
  display: flex;
  justify-content: center;
  padding: 10px 0;
  overflow: auto;
}

canvas {
  max-width: 100%;
  height: auto;
}

/* ===== 关于面板 ===== */
.about-section h2 {
  font-size: 1.4rem;
  color: var(--primary);
  margin: 24px 0 10px;
  padding-bottom: 6px;
  border-bottom: 1px solid var(--border-light);
}

.about-section h2:first-child { margin-top: 0; }

.about-section p {
  margin: 8px 0;
  font-size: 0.92rem;
}

.about-section .rule-box {
  background: #fdf8f0;
  border: 1px solid var(--border-light);
  border-radius: var(--radius-sm);
  padding: 14px 18px;
  margin: 10px 0;
}

.about-section .rule-box code {
  background: #f0e8d8;
  padding: 2px 8px;
  border-radius: 4px;
  font-size: 0.88rem;
}

.about-section table {
  width: 100%;
  margin: 10px 0;
}

.about-section table td {
  padding: 8px 12px;
  border-bottom: 1px solid #f0e8d8;
}

.about-section table td:first-child {
  font-weight: 600;
  color: var(--primary);
  width: 120px;
}

/* ===== 空状态 ===== */
.empty-state {
  text-align: center;
  padding: 50px 20px;
  color: var(--text-muted);
}

.empty-state .icon { font-size: 3rem; margin-bottom: 12px; }

/* ===== 加载动画 ===== */
.spinner {
  width: 40px; height: 40px;
  border: 3px solid var(--border-light);
  border-top-color: var(--primary);
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
  margin: 40px auto;
}

@keyframes spin { to { transform: rotate(360deg); } }

/* 高亮搜索结果 */
.highlight { background: #fff3b0; border-radius: 2px; padding: 0 2px; }

/* ===== 响应式 ===== */
@media (max-width: 768px) {
  .entry-form { grid-template-columns: 1fr 1fr; }
  .entry-note { grid-column: span 2; }
  .header { padding: 14px 16px; }
  .header h1 { font-size: 1.4rem; letter-spacing: 3px; }
  .tabs { padding: 0 8px; overflow-x: auto; }
  .tab-btn { padding: 10px 10px; font-size: 0.78rem; white-space: nowrap; }
  .panel { padding: 16px; }
  .search-bar { flex-direction: column; }
  .tree-container { max-height: 55vh; }
  .member-card { min-width: 60px; padding: 6px 10px; }
  .member-card .name { font-size: 0.8rem; }
  .modal { padding: 20px; }
}

@media (max-width: 480px) {
  .stats { flex-direction: column; gap: 8px; }
  .stat-card { min-width: auto; }
}