:root {
  color-scheme: dark;
  --bg: #131416;
  --panel: #1d1f22;
  --panel-raised: #232528;
  --inset: #26282c;
  --border: #34373c;
  --border-strong: #474b51;
  --text: #e6e7e9;
  --muted: #9aa0a6;
  --faint: #6f757c;
  --accent: #6ea8fe;
  --accent-soft: rgba(110, 168, 252, 0.14);
  --ok: #34d1a4;
  --ok-soft: rgba(52, 209, 164, 0.14);
  --danger: #f28b82;
  --mark-bg: rgba(250, 199, 117, 0.28);
  --mark-border: #fac775;
  --shadow: 0 8px 28px rgba(0, 0, 0, 0.45);
}

html[data-theme="light"] {
  color-scheme: light;
  --bg: #f2f4f7;
  --panel: #ffffff;
  --panel-raised: #ffffff;
  --inset: #f5f7fa;
  --border: #dde3ea;
  --border-strong: #c3ccd6;
  --text: #1f2933;
  --muted: #5f6b78;
  --faint: #8b95a1;
  --accent: #2563eb;
  --accent-soft: #e8f0fe;
  --ok: #0f6e56;
  --ok-soft: #e1f5ee;
  --danger: #b42318;
  --mark-bg: #fac775;
  --mark-border: #d99a06;
  --shadow: 0 8px 28px rgba(15, 23, 42, 0.12);
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  min-height: 100vh;
}

body {
  font-family: system-ui, -apple-system, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.55;
  font-size: 14px;
}

button,
input,
select,
textarea {
  font: inherit;
  color: inherit;
}

/* Native select popups ignore the closed control's colors; pin the
   color scheme on the controls themselves and tint option rows. */
select,
select option,
select optgroup {
  color-scheme: dark;
}

select option,
select optgroup {
  background: var(--panel);
  color: var(--text);
}

html[data-theme="light"] select,
html[data-theme="light"] select option,
html[data-theme="light"] select optgroup {
  color-scheme: light;
}

a {
  color: var(--accent);
}

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

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

.faint {
  color: var(--faint);
}

/* ---------- Top bar ---------- */

.topbar {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  gap: 16px;
  align-items: center;
  padding: 10px 20px;
  background: var(--panel);
  border-bottom: 1px solid var(--border);
}

.brand {
  font-weight: 600;
  font-size: 15px;
  letter-spacing: 0.02em;
  white-space: nowrap;
}

.brand small {
  display: block;
  font-size: 11px;
  font-weight: 400;
  color: var(--faint);
  letter-spacing: 0.08em;
}

.search-box {
  flex: 1;
  display: block;
  max-width: 560px;
}

.search-box input {
  width: 100%;
}

.topbar-actions {
  display: flex;
  gap: 8px;
  align-items: center;
  margin-left: auto;
}

.account-name {
  color: var(--muted);
  font-size: 13px;
  padding: 0 4px;
}

/* ---------- Inputs & buttons ---------- */

input,
select,
textarea {
  width: 100%;
  padding: 7px 10px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--inset);
  color: var(--text);
  transition: border-color 0.15s;
}

input::placeholder,
textarea::placeholder {
  color: var(--faint);
}

input:focus,
select:focus,
textarea:focus {
  outline: none;
  border-color: var(--accent);
}

select {
  width: auto;
  cursor: pointer;
}

select:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

textarea {
  resize: vertical;
  min-height: 60px;
}

button {
  padding: 7px 14px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--panel-raised);
  cursor: pointer;
  font-size: 13px;
  transition: border-color 0.15s, background 0.15s;
  white-space: nowrap;
}

button:hover {
  border-color: var(--border-strong);
}

button.primary {
  background: var(--accent-soft);
  border-color: var(--accent);
  color: var(--accent);
  font-weight: 500;
}

button.primary:hover {
  background: var(--accent-soft);
  filter: brightness(1.1);
}

button.ghost {
  background: transparent;
  border-color: transparent;
  color: var(--muted);
}

button.ghost:hover {
  color: var(--text);
  border-color: var(--border);
}

button.link {
  background: none;
  border: none;
  padding: 2px 4px;
  color: var(--accent);
  font-size: 12px;
  cursor: pointer;
}

button.link:hover {
  text-decoration: underline;
}

button.danger-text {
  background: none;
  border: none;
  padding: 2px 4px;
  color: var(--danger);
  font-size: 12px;
  cursor: pointer;
}

button:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

/* ---------- Workbench layout ---------- */

.workbench {
  display: grid;
  grid-template-columns: 264px minmax(0, 1fr);
  gap: 16px;
  padding: 16px 20px 40px;
  align-items: start;
  max-width: 1440px;
  margin: 0 auto;
}

.sidebar {
  position: sticky;
  top: 68px;
  max-height: calc(100vh - 84px);
  overflow: auto;
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 12px;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 12px;
}

.sidebar-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
}

.sidebar-head h2 {
  margin: 0;
  font-size: 12px;
  font-weight: 500;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.sidebar-head button {
  padding: 3px 10px;
  font-size: 12px;
}

.defect-list {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.defect-item {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 1px;
  width: 100%;
  padding: 8px 10px;
  border: 1px solid transparent;
  border-radius: 8px;
  background: transparent;
  text-align: left;
  cursor: pointer;
}

.defect-item:hover {
  background: var(--inset);
  border-color: var(--border);
}

.defect-item.is-active {
  background: var(--inset);
  border-color: var(--accent);
  box-shadow: inset 3px 0 0 var(--accent);
}

.defect-cn {
  font-size: 13.5px;
}

.defect-en {
  font-size: 12px;
  color: var(--muted);
}

/* ---------- Content ---------- */

.content {
  min-height: 60vh;
}

.detail-header {
  display: flex;
  align-items: baseline;
  gap: 12px;
  flex-wrap: wrap;
  padding: 2px 4px 12px;
}

.detail-header h1 {
  margin: 0;
  font-size: 19px;
  font-weight: 600;
}

.count-chip {
  font-size: 12px;
  color: var(--muted);
  background: var(--inset);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 1px 10px;
}

.detail-header .spacer {
  flex: 1;
}

.process-group {
  margin-bottom: 22px;
}

.process-group > h2 {
  margin: 0 0 10px;
  font-size: 13px;
  font-weight: 500;
  color: var(--muted);
  display: flex;
  align-items: center;
  gap: 8px;
}

.process-group > h2::after {
  content: "";
  flex: 1;
  border-top: 1px solid var(--border);
}

.item-list {
  display: grid;
  gap: 12px;
}

/* ---------- Item card ---------- */

.item-card {
  position: relative;
  padding: 12px 14px 12px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--panel-raised);
  transition: border-color 0.15s;
}

.item-card:hover {
  border-color: var(--border-strong);
}

.item-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px;
  margin-bottom: 10px;
  padding-right: 52px;
}

.pill {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 2px 9px;
  border-radius: 999px;
  background: var(--accent-soft);
  color: var(--accent);
  font-size: 11.5px;
  font-weight: 500;
}

.pill-muted {
  background: var(--inset);
  color: var(--muted);
  font-weight: 400;
}

.card-edit {
  position: absolute;
  top: 10px;
  right: 12px;
  padding: 2px 10px;
  font-size: 12px;
}

.card-section {
  background: var(--inset);
  border-radius: 8px;
  padding: 8px 12px;
}

.card-section-label {
  margin: 0 0 2px;
  font-size: 10.5px;
  font-weight: 500;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  color: var(--muted);
}

.card-section-body {
  margin: 0;
  font-size: 13.5px;
  white-space: pre-wrap;
  overflow-wrap: anywhere;
}

.card-section-body .field-en {
  display: block;
  margin-top: 2px;
  color: var(--muted);
  font-size: 12.5px;
}

.card-divider {
  border: none;
  border-top: 1px solid var(--border);
  margin: 8px 0;
}

.card-footer {
  margin: 8px 0 0;
  font-size: 12px;
  color: var(--faint);
  display: flex;
  gap: 6px;
  align-items: baseline;
}

.untranslated {
  color: var(--danger);
  font-style: italic;
  font-size: 12.5px;
}

mark {
  background: var(--mark-bg);
  color: inherit;
  border-radius: 3px;
  padding: 0 2px;
}

/* ---------- Search results ---------- */

.search-group {
  margin-bottom: 16px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--panel-raised);
  overflow: hidden;
}

.search-group-head {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 9px 14px;
  background: var(--inset);
  border-bottom: 1px solid var(--border);
}

.search-group-head h2 {
  margin: 0;
  font-size: 13.5px;
  font-weight: 500;
}

.semantic-tag {
  margin-left: auto;
  font-size: 11px;
  color: var(--faint);
}

.search-row {
  padding: 8px 14px;
  cursor: pointer;
  border-bottom: 1px solid var(--border);
  transition: background 0.12s;
}

.search-row:last-child {
  border-bottom: none;
}

.search-row:hover {
  background: var(--inset);
}

.search-row-meta {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 3px;
}

.search-proc {
  font-size: 11.5px;
  color: var(--muted);
}

.search-hit-tag {
  margin-left: auto;
  font-size: 11px;
  color: var(--faint);
}

.search-line {
  margin: 0;
  font-size: 13px;
  overflow-wrap: anywhere;
}

.search-line + .search-line {
  margin-top: 2px;
  color: var(--muted);
  font-size: 12.5px;
}

@keyframes locate-flash {
  0%,
  55% {
    border-color: var(--mark-border);
    box-shadow: 0 0 0 3px var(--mark-bg);
  }
  100% {
    border-color: var(--border-strong);
    box-shadow: none;
  }
}

.item-card.locate-flash {
  animation: locate-flash 2.2s ease forwards;
}

/* ---------- States ---------- */

.state-panel {
  padding: 56px 20px;
  text-align: center;
  background: var(--panel);
  border: 1px dashed var(--border);
  border-radius: 12px;
}

.state-panel h1 {
  margin: 0 0 6px;
  font-size: 16px;
  font-weight: 500;
}

.state-panel p {
  margin: 0 0 12px;
}

/* ---------- Modals ---------- */

.modal-overlay {
  position: fixed;
  inset: 0;
  z-index: 50;
  display: grid;
  place-items: center;
  padding: 20px;
  background: rgba(0, 0, 0, 0.55);
}

html[data-theme="light"] .modal-overlay {
  background: rgba(15, 23, 42, 0.35);
}

.modal-panel {
  width: min(760px, 100%);
  max-height: calc(100vh - 48px);
  overflow: auto;
  padding: 18px 20px;
  border-radius: 14px;
  background: var(--panel);
  border: 1px solid var(--border-strong);
  box-shadow: var(--shadow);
}

.modal-panel.narrow {
  width: min(420px, 100%);
}

.modal-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 14px;
}

.modal-head h2 {
  margin: 0;
  font-size: 15px;
  font-weight: 600;
}

.modal-close {
  padding: 2px 8px;
  font-size: 14px;
  color: var(--muted);
  background: none;
  border: none;
}

.modal-close:hover {
  color: var(--text);
}

.form-group-label {
  margin: 0 0 6px;
  font-size: 12px;
  font-weight: 500;
  color: var(--muted);
  letter-spacing: 0.03em;
}

.field-row {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
  margin-bottom: 16px;
}

.field-row label {
  display: grid;
  gap: 4px;
  font-size: 12px;
  color: var(--muted);
}

.field-row select {
  width: 100%;
}

.pair-block {
  margin-bottom: 14px;
}

.pair-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 5px;
}

.pair-head .pair-title {
  font-size: 12px;
  font-weight: 500;
  color: var(--muted);
  letter-spacing: 0.03em;
}

.pair-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
}

.meta-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  margin-bottom: 16px;
}

.meta-row label {
  display: grid;
  gap: 4px;
  font-size: 12px;
  color: var(--muted);
}

.meta-row select {
  width: 100%;
}

.modal-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  justify-content: flex-end;
  padding-top: 12px;
  border-top: 1px solid var(--border);
}

.modal-actions .left {
  margin-right: auto;
}

.form-error {
  margin: 10px 0 0;
  color: var(--danger);
  font-size: 12.5px;
}

.form-note {
  margin: 10px 0 0;
  color: var(--ok);
  font-size: 12.5px;
}

/* ---------- Translate preview ---------- */

.translate-preview {
  margin-top: 8px;
  padding: 8px 12px;
  border: 1px solid var(--accent);
  border-radius: 8px;
  background: var(--accent-soft);
}

.translate-preview .preview-label {
  margin: 0 0 3px;
  font-size: 10.5px;
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--accent);
}

.translate-preview .preview-text {
  margin: 0 0 6px;
  font-size: 13px;
  white-space: pre-wrap;
}

.translate-preview .preview-actions {
  display: flex;
  gap: 6px;
  align-items: center;
}

.translate-preview .preview-actions button {
  padding: 2px 10px;
  font-size: 12px;
}

/* ---------- Responsive ---------- */

@media (max-width: 900px) {
  .workbench {
    grid-template-columns: 1fr;
  }

  .sidebar {
    position: static;
    max-height: none;
  }

  .topbar {
    flex-wrap: wrap;
  }

  .search-box {
    order: 3;
    flex-basis: 100%;
    max-width: none;
  }

  .field-row {
    grid-template-columns: 1fr;
  }

  .pair-grid {
    grid-template-columns: 1fr;
  }
}