/* ── Variables ────────────────────────────────────────────────────── */
:root {
  --bg-0: #0d1117;
  --bg-1: #161b22;
  --bg-2: #21262d;
  --bg-3: #30363d;
  --text-0: #e6edf3;
  --text-1: #8b949e;
  --text-2: #484f58;
  --accent: #58a6ff;
  --accent-dim: #1f6feb;
  --success: #3fb950;
  --warning: #d29922;
  --danger: #f85149;
  --info: #79c0ff;
  --radius: 6px;
  --mono: 'SF Mono', 'Cascadia Code', 'Fira Code', Consolas, monospace;
  --sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', Helvetica, Arial,
    sans-serif;
}

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

html,
body {
  height: 100%;
  background: var(--bg-0);
  color: var(--text-0);
  font-family: var(--sans);
  font-size: 14px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

a {
  color: var(--accent);
  text-decoration: none;
}
a:hover {
  text-decoration: underline;
}

code,
.mono {
  font-family: var(--mono);
  font-size: 13px;
}

/* ── Layout ───────────────────────────────────────────────────────── */
.topbar {
  position: sticky;
  top: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  gap: 24px;
  padding: 0 24px;
  height: 48px;
  background: var(--bg-1);
  border-bottom: 1px solid var(--bg-3);
}

.topbar-brand {
  font-weight: 600;
  font-size: 16px;
  letter-spacing: -0.02em;
  color: var(--text-0);
}

.topbar-nav {
  display: flex;
  gap: 4px;
}

.nav-link {
  padding: 6px 12px;
  border-radius: var(--radius);
  color: var(--text-1);
  font-size: 13px;
  font-weight: 500;
  transition:
    background 0.15s,
    color 0.15s;
}
.nav-link:hover {
  background: var(--bg-2);
  color: var(--text-0);
  text-decoration: none;
}
.nav-link.active {
  background: var(--bg-2);
  color: var(--text-0);
}

#app {
  max-width: 1400px;
  margin: 0 auto;
  padding: 24px;
}

/* ── View Header ──────────────────────────────────────────────────── */
.view-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 20px;
}
.view-header h1 {
  font-size: 20px;
  font-weight: 600;
}
.view-actions {
  display: flex;
  gap: 8px;
}

/* ── Cards ────────────────────────────────────────────────────────── */
.cards-row {
  display: flex;
  gap: 12px;
  margin-bottom: 20px;
  flex-wrap: wrap;
}

.card {
  flex: 1;
  min-width: 140px;
  padding: 16px;
  background: var(--bg-1);
  border: 1px solid var(--bg-3);
  border-radius: var(--radius);
}
.card-value {
  font-size: 24px;
  font-weight: 600;
  line-height: 1.2;
}
.card-label {
  font-size: 12px;
  color: var(--text-1);
  margin-top: 4px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.card-sub {
  font-size: 12px;
  color: var(--text-2);
  margin-top: 4px;
}

/* ── Split Layout ─────────────────────────────────────────────────── */
.split-layout {
  display: flex;
  gap: 16px;
}
.table-panel {
  flex: 1;
  min-width: 0;
}
.detail-panel {
  width: 0;
  overflow: hidden;
  transition: width 0.2s ease;
  flex-shrink: 0;
}
.detail-panel.open {
  width: 380px;
  border-left: 1px solid var(--bg-3);
  padding-left: 16px;
}

/* ── Table ────────────────────────────────────────────────────────── */
.table-toolbar {
  display: flex;
  gap: 8px;
  margin-bottom: 12px;
  align-items: center;
}

.table-wrap {
  overflow-x: auto;
  border: 1px solid var(--bg-3);
  border-radius: var(--radius);
}

.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
}
.data-table th {
  text-align: left;
  padding: 8px 12px;
  background: var(--bg-1);
  border-bottom: 1px solid var(--bg-3);
  color: var(--text-1);
  font-weight: 500;
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  white-space: nowrap;
  user-select: none;
}
.data-table th.sortable {
  cursor: pointer;
}
.data-table th.sortable:hover {
  color: var(--text-0);
}
.data-table td {
  padding: 6px 12px;
  border-bottom: 1px solid var(--bg-2);
  vertical-align: middle;
}
.data-table tbody tr {
  transition: background 0.1s;
}
.data-table tbody tr:hover {
  background: var(--bg-1);
}
.data-table tbody tr.selected {
  background: var(--bg-2);
}

/* ── Badges ───────────────────────────────────────────────────────── */
.badge {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 12px;
  font-size: 11px;
  font-weight: 500;
  line-height: 1.4;
  white-space: nowrap;
}
.badge-default {
  background: var(--bg-2);
  color: var(--text-1);
}
.badge-muted {
  background: var(--bg-2);
  color: var(--text-1);
}
.badge-success {
  background: rgba(63, 185, 80, 0.15);
  color: var(--success);
}
.badge-warning {
  background: rgba(210, 153, 34, 0.15);
  color: var(--warning);
}
.badge-danger {
  background: rgba(248, 81, 73, 0.15);
  color: var(--danger);
}
.badge-accent {
  background: rgba(88, 166, 255, 0.15);
  color: var(--accent);
}
.badge-info {
  background: rgba(121, 192, 255, 0.15);
  color: var(--info);
}

/* ── Bars ─────────────────────────────────────────────────────────── */
.confidence {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.bar {
  width: 60px;
  height: 4px;
  background: var(--bg-2);
  border-radius: 2px;
  overflow: hidden;
}
.bar-fill {
  height: 100%;
  border-radius: 2px;
  transition: width 0.3s;
}
.bar-accent {
  background: var(--accent);
}
.bar-success {
  background: var(--success);
}
.bar-warning {
  background: var(--warning);
}
.bar-danger {
  background: var(--danger);
}

/* ── Forms ────────────────────────────────────────────────────────── */
.search-input,
.text-input,
.select-input {
  padding: 6px 10px;
  background: var(--bg-1);
  border: 1px solid var(--bg-3);
  border-radius: var(--radius);
  color: var(--text-0);
  font-size: 13px;
  font-family: var(--sans);
  outline: none;
  transition: border-color 0.15s;
}
.search-input:focus,
.text-input:focus,
.select-input:focus {
  border-color: var(--accent);
}
.search-input {
  width: 240px;
}
.text-input {
  width: 100%;
}
.select-input {
  cursor: pointer;
}

.form-row {
  display: flex;
  gap: 8px;
  align-items: center;
  margin-bottom: 10px;
}
.form-row .select-input {
  flex: 1;
}

.form-group {
  margin-bottom: 12px;
}
.form-group label {
  display: block;
  font-size: 12px;
  color: var(--text-1);
  margin-bottom: 4px;
  font-weight: 500;
}

/* ── Buttons ──────────────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 14px;
  border: 1px solid var(--bg-3);
  border-radius: var(--radius);
  background: var(--bg-1);
  color: var(--text-0);
  font-size: 13px;
  font-family: var(--sans);
  font-weight: 500;
  cursor: pointer;
  transition:
    background 0.15s,
    border-color 0.15s;
  white-space: nowrap;
}
.btn:hover {
  background: var(--bg-2);
}
.btn:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 1px;
}

.btn-primary {
  background: var(--accent-dim);
  border-color: var(--accent);
  color: #fff;
}
.btn-primary:hover {
  background: var(--accent);
}

.btn-ghost {
  background: transparent;
  border-color: transparent;
}
.btn-ghost:hover {
  background: var(--bg-2);
}

.btn-sm {
  padding: 3px 8px;
  font-size: 12px;
}

/* ── Detail Panel ─────────────────────────────────────────────────── */
.detail-content {
  padding: 4px 0;
}
.detail-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 16px;
}
.detail-header h3 {
  font-size: 14px;
  font-family: var(--mono);
  word-break: break-all;
}
.detail-section {
  margin-bottom: 16px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--bg-2);
}
.detail-section h4 {
  font-size: 12px;
  color: var(--text-1);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin-bottom: 8px;
}
.detail-row {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 6px;
  font-size: 13px;
}
.detail-label {
  width: 80px;
  flex-shrink: 0;
  color: var(--text-1);
  font-size: 12px;
}
.detail-empty {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 200px;
  color: var(--text-2);
  font-size: 13px;
}

.command-block {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  background: var(--bg-0);
  border: 1px solid var(--bg-3);
  border-radius: var(--radius);
  font-family: var(--mono);
  font-size: 12px;
  word-break: break-all;
}
.command-block code {
  flex: 1;
}

.convert-section .btn-primary {
  width: 100%;
  justify-content: center;
  margin-top: 4px;
}

.warning-item {
  padding: 4px 8px;
  margin-bottom: 4px;
  background: rgba(210, 153, 34, 0.1);
  border-left: 3px solid var(--warning);
  border-radius: 0 var(--radius) var(--radius) 0;
  font-size: 12px;
  color: var(--warning);
}

/* ── Logs ─────────────────────────────────────────────────────────── */
.logs-section {
  margin-bottom: 20px;
}
.logs-section h3 {
  font-size: 14px;
  margin-bottom: 8px;
}
.logs-panel {
  max-height: 300px;
  overflow-y: auto;
  padding: 12px;
  background: var(--bg-1);
  border: 1px solid var(--bg-3);
  border-radius: var(--radius);
  font-family: var(--mono);
  font-size: 12px;
  line-height: 1.6;
}
.log-line {
  color: var(--text-1);
}

.status-line {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 16px;
}

.results-section {
  margin-bottom: 20px;
}
.results-section h3 {
  font-size: 14px;
  margin-bottom: 8px;
}
.result-actions {
  margin-top: 12px;
}

/* ── Diff Viewer ──────────────────────────────────────────────────── */
.diff-meta {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 12px;
  padding: 12px;
  background: var(--bg-1);
  border: 1px solid var(--bg-3);
  border-radius: var(--radius);
  font-size: 12px;
}
.diff-files {
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.diff-label {
  color: var(--text-1);
  margin-right: 8px;
}
.diff-stats {
  display: flex;
  gap: 12px;
  white-space: nowrap;
}

.diff-container {
  display: flex;
  gap: 0;
  border: 1px solid var(--bg-3);
  border-radius: var(--radius);
  overflow: hidden;
}
.diff-pane {
  flex: 1;
  min-width: 0;
  overflow: hidden;
}
.diff-pane + .diff-pane {
  border-left: 1px solid var(--bg-3);
}
.diff-pane-header {
  padding: 6px 12px;
  background: var(--bg-1);
  border-bottom: 1px solid var(--bg-3);
  font-size: 12px;
  font-weight: 500;
  color: var(--text-1);
}
.diff-lines {
  overflow-y: auto;
  max-height: calc(100vh - 280px);
  font-family: var(--mono);
  font-size: 12px;
  line-height: 1.5;
}
.diff-line {
  display: flex;
  min-height: 18px;
  white-space: pre;
}
.diff-num {
  width: 40px;
  flex-shrink: 0;
  padding: 0 8px;
  text-align: right;
  color: var(--text-2);
  user-select: none;
}
.diff-code {
  flex: 1;
  padding: 0 8px;
  overflow-x: auto;
}
.diff-removed {
  background: rgba(248, 81, 73, 0.12);
}
.diff-removed .diff-num {
  color: var(--danger);
}
.diff-added {
  background: rgba(63, 185, 80, 0.12);
}
.diff-added .diff-num {
  color: var(--success);
}
.diff-empty {
  background: var(--bg-1);
}

.todo-marker {
  background: rgba(210, 153, 34, 0.3);
  color: var(--warning);
  padding: 0 2px;
  border-radius: 2px;
}

/* ── Syntax Highlights ────────────────────────────────────────────── */
.hl-keyword {
  color: var(--accent);
}
.hl-string {
  color: var(--success);
}

/* ── Batch Config ─────────────────────────────────────────────────── */
.batch-config {
  max-width: 480px;
  padding: 20px;
  background: var(--bg-1);
  border: 1px solid var(--bg-3);
  border-radius: var(--radius);
}
.batch-config p {
  margin-bottom: 16px;
  color: var(--text-1);
  font-size: 13px;
}

/* ── Utilities ────────────────────────────────────────────────────── */
.loading {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 40px;
  justify-content: center;
  color: var(--text-1);
}
.error-msg {
  padding: 16px;
  background: rgba(248, 81, 73, 0.1);
  border: 1px solid rgba(248, 81, 73, 0.3);
  border-radius: var(--radius);
  color: var(--danger);
}
.empty-state {
  padding: 40px;
  text-align: center;
  color: var(--text-2);
}
.text-secondary {
  color: var(--text-1);
}
.text-success {
  color: var(--success);
}
.text-danger {
  color: var(--danger);
}

.spinner {
  display: inline-block;
  width: 16px;
  height: 16px;
  border: 2px solid var(--bg-3);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.6s linear infinite;
}
@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

/* ── Preview Diff (full-width below table) ───────────────────────── */
#preview-full-width:not(:empty) {
  margin-top: 24px;
  padding-top: 20px;
  border-top: 1px solid var(--bg-3);
}
.preview-full-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  margin-bottom: 12px;
}
.preview-full-header h3 {
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 4px;
}
.preview-stats {
  display: flex;
  gap: 10px;
  font-size: 12px;
}
.preview-scroll {
  max-height: calc(100vh - 300px);
}

/* ── Source Preview ───────────────────────────────────────────────── */
.source-preview {
  max-height: 320px;
  overflow: auto;
  border: 1px solid var(--bg-3);
  border-radius: var(--radius);
  background: var(--bg-0);
}
.source-code {
  margin: 0;
  padding: 8px 0;
  font-family: var(--mono);
  font-size: 12px;
  line-height: 1.6;
  white-space: pre;
  tab-size: 2;
}
.source-code code {
  display: block;
  padding: 0 12px;
}
.line-num {
  display: inline-block;
  width: 3ch;
  color: var(--text-2);
  text-align: right;
  margin-right: 12px;
  user-select: none;
}
.source-truncated {
  padding: 6px 12px;
  font-size: 11px;
  color: var(--text-2);
  border-top: 1px solid var(--bg-3);
  text-align: center;
}
.source-loading {
  padding: 16px;
  font-size: 12px;
  color: var(--text-2);
  text-align: center;
}

/* ── Candidate Bars ──────────────────────────────────────────────── */
.candidate-row {
  margin-bottom: 8px;
}
.candidate-info {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 3px;
  font-size: 13px;
}
.candidate-bar {
  height: 4px;
  background: var(--bg-2);
  border-radius: 2px;
  overflow: hidden;
}
.candidate-bar-fill {
  height: 100%;
  background: var(--accent);
  border-radius: 2px;
}

/* ── Responsive ─────────────────────────────────────────────────────── */
@media (max-width: 1100px) {
  #app {
    padding: 16px;
  }

  .split-layout {
    flex-direction: column;
    gap: 12px;
  }

  .detail-panel {
    width: 100%;
    max-height: 0;
    transition: max-height 0.2s ease;
  }

  .detail-panel.open {
    width: 100%;
    max-height: 1200px;
    border-left: 0;
    border-top: 1px solid var(--bg-3);
    padding-left: 0;
    padding-top: 12px;
  }

  .diff-container {
    flex-direction: column;
  }

  .diff-pane + .diff-pane {
    border-left: 0;
    border-top: 1px solid var(--bg-3);
  }
}

@media (max-width: 768px) {
  .topbar {
    gap: 12px;
    padding: 0 12px;
    height: auto;
    min-height: 48px;
    flex-wrap: wrap;
    align-content: center;
  }

  .view-header {
    flex-direction: column;
    align-items: flex-start;
    gap: 10px;
  }

  .table-toolbar,
  .form-row {
    flex-wrap: wrap;
    align-items: stretch;
  }

  .search-input {
    width: 100%;
  }

  .diff-meta {
    flex-direction: column;
    gap: 8px;
  }
}

/* ── Scrollbar ────────────────────────────────────────────────────── */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}
::-webkit-scrollbar-track {
  background: transparent;
}
::-webkit-scrollbar-thumb {
  background: var(--bg-3);
  border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
  background: var(--text-2);
}