:root {
  --bg: #f6f3ec;
  --panel: #fffaf2;
  --line: #d9cfbf;
  --text: #2a241c;
  --muted: #6a6257;
  --accent: #c25b2d;
  --accent-soft: #fde9dc;
  --done: #2f7f52;
  --danger: #9a2c2c;
}

/* 选中文字颜色 */
::selection {
  background: #e8c9a0;
  color: #2a241c;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Noto Serif SC", "Source Han Serif SC", "PingFang SC", "Microsoft YaHei", serif;
  color: var(--text);
  background: radial-gradient(circle at 15% 10%, #fff7ee 0%, var(--bg) 45%, #eee5d7 100%);
}

.annotator-colors {
  --c0: #2f7f52;
  --c1: #8b5e3c;
  --c2: #5070a0;
  --c3: #a0506f;
  --c4: #6f8040;
  --c5: #80623a;
  --c6: #4a7a8a;
  --c7: #9a6040;
}

.topbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  padding: 1rem 1.2rem;
  border-bottom: 1px solid var(--line);
  background: linear-gradient(120deg, #fdf3e8, #f8efe0 45%, #f2e6d4);
}

.topbar h1 {
  margin: 0;
  font-size: 1.3rem;
}

.topbar p {
  margin: 0.25rem 0 0;
  color: var(--muted);
  font-size: 0.9rem;
}

.top-actions {
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.username-label {
  display: flex;
  align-items: center;
  gap: 0.3rem;
  color: var(--muted);
  font-size: 0.9rem;
}

.username-label input {
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 0.4rem 0.5rem;
  font: inherit;
  font-size: 0.9rem;
  width: 130px;
  background: white;
}

button,
select,
textarea,
a {
  font: inherit;
}

button,
a {
  border: 1px solid var(--line);
  background: white;
  border-radius: 8px;
  padding: 0.45rem 0.8rem;
  color: var(--text);
  text-decoration: none;
  cursor: pointer;
}

button:hover,
a:hover {
  border-color: var(--accent);
}

button.danger {
  color: var(--danger);
}

button.triple-swap {
  font-size: 1rem;
  padding: 0.3rem 0.5rem;
  margin-right: 0.2rem;
  color: #5070a0;
}

.app-layout {
  display: grid;
  grid-template-columns: 300px 1fr 360px;
  gap: 1rem;
  padding: 1rem;
  height: calc(100vh - 85px);
}

.sidebar,
.workbench,
.preview-panel {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 12px;
  box-shadow: 0 8px 24px rgba(32, 22, 10, 0.08);
  overflow: hidden;
}

.sidebar {
  display: flex;
  flex-direction: column;
  min-height: 0;
}

.workbench {
  overflow-y: auto;
}

.preview-panel {
  overflow-y: auto;
}

.sidebar-head {
  padding: 0.9rem;
  border-bottom: 1px solid var(--line);
}

.sidebar-head h2 {
  margin: 0;
  font-size: 1.05rem;
}

.sidebar-head p {
  margin: 0.3rem 0 0;
  color: var(--muted);
}

.paragraph-list {
  flex: 1;
  overflow-y: auto;
  padding: 0.6rem;
}

.paragraph-item {
  width: 100%;
  text-align: left;
  margin-bottom: 0.5rem;
  background: #fff;
}

.paragraph-item.active {
  border-color: var(--accent);
  background: var(--accent-soft);
}

.paragraph-item.done {
  border-left: 4px solid var(--done);
}

.paragraph-item.done.annotator-0 { border-left-color: var(--c0); }
.paragraph-item.done.annotator-1 { border-left-color: var(--c1); }
.paragraph-item.done.annotator-2 { border-left-color: var(--c2); }
.paragraph-item.done.annotator-3 { border-left-color: var(--c3); }
.paragraph-item.done.annotator-4 { border-left-color: var(--c4); }
.paragraph-item.done.annotator-5 { border-left-color: var(--c5); }
.paragraph-item.done.annotator-6 { border-left-color: var(--c6); }
.paragraph-item.done.annotator-7 { border-left-color: var(--c7); }

.paragraph-item .title {
  font-weight: 700;
  font-size: 0.92rem;
}

.done-by-tag {
  font-weight: 400;
  font-size: 0.75rem;
  background: var(--accent-soft);
  border-radius: 4px;
  padding: 1px 6px;
  margin-left: 0.3rem;
  color: var(--accent);
}

.paragraph-item .meta,
.paragraph-item .counts {
  color: var(--muted);
  font-size: 0.82rem;
  margin-top: 0.2rem;
}

.workbench {
  display: flex;
  flex-direction: column;
  min-width: 0;
}

.meta-card {
  border-bottom: 1px solid var(--line);
  padding: 0.9rem;
}

.meta-card h2 {
  margin: 0;
  font-size: 1.1rem;
}

.meta-card p {
  margin: 0.35rem 0 0;
  color: var(--muted);
}

.lock-status {
  margin: 0.35rem 0 0;
  font-size: 0.88rem;
  font-weight: 600;
}

.lock-status.unlocked {
  color: var(--done);
}

.lock-status.owned {
  color: #c28a2d;
}

.lock-status.locked {
  color: var(--danger);
}

.meta-nav {
  display: flex;
  gap: 0.5rem;
  margin-top: 0.7rem;
}

.steps-bar {
  display: flex;
  gap: 0.45rem;
  padding: 0.7rem;
  border-bottom: 1px solid var(--line);
}

.step-btn.active {
  background: var(--accent);
  color: white;
  border-color: var(--accent);
}

.step-panel {
  display: none;
  padding: 0.9rem;
  overflow: auto;
}

.step-panel.active {
  display: block;
}

.selection-panel {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  align-items: center;
  margin-bottom: 0.65rem;
}

.paragraph-box {
  background: #fff;
  border: 1px dashed var(--line);
  border-radius: 10px;
  padding: 0.7rem;
  white-space: pre-wrap;
  line-height: 1.6;
  max-height: 220px;
  overflow: auto;
}

.table-box {
  margin-top: 0.75rem;
  overflow: auto;
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
}

th,
td {
  border: 1px solid var(--line);
  padding: 0.4rem;
  vertical-align: top;
}

th {
  background: #f7efe1;
}

.hint {
  color: var(--muted);
  font-size: 0.9rem;
}

.span-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 0.6rem;
}

.span-card {
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 0.55rem;
  background: #fff;
}

.span-card.ineligible {
  border-style: dashed;
  border-color: #c8bfaf;
  opacity: 0.55;
  background: #f5f0e8;
}

.span-card.ineligible .span-card-text {
  user-select: none;
}

.span-card-head {
  color: var(--muted);
  font-size: 0.83rem;
  margin-bottom: 0.35rem;
}

.span-card-text {
  margin: 0;
  white-space: pre-wrap;
  line-height: 1.5;
}

.selected-nodes {
  border: 1px solid var(--line);
  border-radius: 10px;
  background: #fff;
  padding: 0.7rem;
}

.selected-nodes p {
  margin: 0.3rem 0;
}

.selected-nodes textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 0.5rem;
  resize: vertical;
}

.triple-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  margin-top: 0.5rem;
}

.node-pickers {
  margin-top: 0.8rem;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.8rem;
}

.node-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
}

.node-btn {
  background: #fff;
}

.preview-panel {
  padding: 0.9rem;
  min-width: 0;
}

.preview-panel h2 {
  margin-top: 0;
  font-size: 1.05rem;
}

.tabs {
  display: flex;
  gap: 0.35rem;
  margin-bottom: 0.6rem;
}

.tab-btn.active {
  background: var(--accent);
  color: white;
  border-color: var(--accent);
}

.tab-content {
  border: 1px solid var(--line);
  border-radius: 10px;
  background: #fff;
  padding: 0.7rem;
  max-height: calc(100vh - 230px);
  overflow: auto;
}

.empty {
  color: var(--muted);
}

.toast {
  position: fixed;
  right: 20px;
  bottom: 20px;
  background: #224b36;
  color: #fff;
  border-radius: 8px;
  padding: 0.6rem 0.8rem;
  opacity: 0;
  transform: translateY(10px);
  transition: all 0.2s ease;
  pointer-events: none;
}

.toast.error {
  background: #7e2424;
}

.toast.show {
  opacity: 1;
  transform: translateY(0);
}

.toggle-translation-btn {
  display: inline-block;
  margin: 0.35rem 0 0.2rem;
  padding: 0.3rem 0.7rem;
  font-size: 0.85rem;
  border: 1px solid var(--line);
  border-radius: 5px;
  background: #f5efe2;
  color: var(--muted);
  cursor: pointer;
  transition: background 0.15s;
}
.toggle-translation-btn:hover {
  background: #e8dbc5;
}

.translation-box {
  background: #faf7f0;
  border-left: 3px solid var(--accent);
  padding-left: 1rem;
  color: #5c5548;
}

.shortcut-hint {
  font-size: 0.75rem;
  color: var(--muted);
  margin-left: 0.6rem;
  white-space: nowrap;
}

.edit-text-btn {
  display: inline-block;
  margin: 0.3rem 0 0.3rem;
  padding: 0.25rem 0.6rem;
  font-size: 0.8rem;
  border: 1px solid var(--line);
  border-radius: 4px;
  background: #f5efe2;
  color: var(--muted);
  cursor: pointer;
}
.edit-text-btn:hover {
  background: #e8dbc5;
}

.edit-text-panel {
  margin: 0.4rem 0;
}
.edit-text-panel textarea {
  width: 100%;
  font-family: "Noto Serif SC", "Source Han Serif SC", "PingFang SC", "Microsoft YaHei", serif;
  font-size: 0.9rem;
  line-height: 1.9;
  padding: 0.6rem 0.8rem;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: #fff;
  color: var(--text);
  resize: vertical;
}
.edit-text-actions {
  margin-top: 0.35rem;
  display: flex;
  gap: 0.4rem;
}

.ineligible {
  opacity: 0.45;
  pointer-events: auto;
}

/* Span 高亮 */
.hl-span {
  border-radius: 2px;
  padding: 0 1px;
  transition: outline 0.2s;
}

/* 标注者统计 */
.annotator-stats {
  font-size: 0.82rem;
  color: var(--muted);
  margin-left: 0.3rem;
}

/* 搜索输入 */
.search-input {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 0.4rem 0.5rem;
  font: inherit;
  font-size: 0.85rem;
  margin-top: 0.4rem;
  background: white;
}

/* 派生三元组面板 */
.derived-triplets-panel {
  border: 1px solid #d4c8a0;
  border-radius: 10px;
  background: #fffcf4;
  padding: 0.7rem;
  margin-bottom: 0.7rem;
}
.derived-triplets-panel h4 {
  margin: 0 0 0.5rem 0;
  font-size: 0.95rem;
  color: #8b6f2a;
}
.derived-triple-item {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.3rem 0;
  font-size: 0.88rem;
  border-bottom: 1px dotted #e8dbc5;
}
.derived-triple-item button {
  font-size: 0.78rem;
  padding: 0.15rem 0.5rem;
}
.confirm-derived-btn {
  background: #e4fce4;
  border-color: #a0d4a0;
}
.reject-derived-btn {
  background: #fce4e4;
  border-color: #d4a0a0;
}
.derived-triplets-actions {
  margin-top: 0.5rem;
  display: flex;
  gap: 0.4rem;
}

/* 校验错误面板 */
.validation-errors-panel {
  border: 1px solid #d4a0a0;
  border-radius: 10px;
  background: #fff5f5;
  padding: 0.7rem;
  margin-bottom: 0.7rem;
}
.validation-errors-panel h4 {
  margin: 0 0 0.5rem 0;
  font-size: 0.95rem;
  color: #9a2c2c;
}
.validation-errors-panel ul {
  margin: 0;
  padding-left: 1.3rem;
  font-size: 0.85rem;
  color: #7e2424;
}
.validation-errors-panel li {
  margin-bottom: 0.25rem;
}

/* 标注者下拉 */
#annotator-select {
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 0.4rem 0.5rem;
  font: inherit;
  font-size: 0.9rem;
  background: white;
}

/* 登录遮罩 */
.login-overlay {
  position: fixed;
  inset: 0;
  z-index: 9999;
  display: flex;
  align-items: center;
  justify-content: center;
  background: radial-gradient(circle at 15% 10%, #fff7ee 0%, #f6f3ec 45%, #eee5d7 100%);
}

.login-card {
  text-align: center;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 16px;
  box-shadow: 0 16px 48px rgba(32, 22, 10, 0.15);
  padding: 3rem 4rem;
  max-width: 440px;
}

.login-card h1 {
  font-size: 1.6rem;
  margin: 0 0 0.5rem;
}

.login-subtitle {
  color: var(--muted);
  margin: 0 0 2rem;
  font-size: 1rem;
}

.login-buttons {
  display: flex;
  flex-direction: column;
  gap: 0.8rem;
}

.login-btn {
  padding: 0.85rem 1.5rem;
  font-size: 1.15rem;
  border: 2px solid var(--line);
  border-radius: 12px;
  background: #fff;
  color: var(--text);
  cursor: pointer;
  transition: all 0.2s;
}

.login-btn:hover {
  border-color: var(--accent);
  background: var(--accent-soft);
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(194, 91, 45, 0.15);
}

/* 当前标注者标签 */
#current-annotator-name {
  color: var(--accent);
}

.logout-link {
  font-size: 0.75rem;
  color: var(--muted);
  cursor: pointer;
  margin-left: 0.4rem;
  text-decoration: underline;
  border: none;
  background: none;
  padding: 0;
}

.logout-link:hover {
  color: var(--danger);
}

@media (max-width: 1360px) {
  .app-layout {
    grid-template-columns: 260px 1fr;
  }

  .preview-panel {
    grid-column: 1 / -1;
  }
}

@media (max-width: 960px) {
  .app-layout {
    grid-template-columns: 1fr;
  }

  .node-pickers {
    grid-template-columns: 1fr;
  }
}