:root {
  color-scheme: light dark;
  font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
  --bg-main: #070b12;
  --bg-panel: #0b111b;
  --bg-elevated: #0e1623;
  --border: #1a263a;
  --border-strong: #24385a;
  --text-main: #eef4ff;
  --text-muted: #97a8c4;
  --accent: #2f6fe6;
  --accent-strong: #3b82ff;
  --danger: #d75959;
  --success: #3bb870;
  --highlight: #c9a800;
  --warning-bg: rgba(201, 168, 0, 0.1);
}

/* ---- Tab bar ---- */
.tab-bar {
  display: flex;
  gap: 0;
  width: min(2200px, 100%);
  margin: 0 auto;
  padding: 1.25rem 1.25rem 0;
  box-sizing: border-box;
}

.tab-btn {
  padding: 0.6rem 1.2rem;
  border: 1px solid var(--border);
  border-bottom: none;
  border-radius: 2px 2px 0 0;
  background: var(--bg-elevated);
  color: var(--text-muted);
  font-size: 0.92rem;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.15s ease, color 0.15s ease;
  align-self: auto;
}

.tab-btn:hover {
  background: rgba(26, 45, 74, 0.6);
  color: var(--text-main);
}

.tab-btn.active {
  background: rgba(12, 18, 29, 0.98);
  color: var(--text-main);
  border-bottom-color: transparent;
  position: relative;
}

.tab-btn.active::after {
  content: "";
  position: absolute;
  bottom: -1px;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--accent-strong);
}

body {
  margin: 0;
  background: var(--bg-main);
  color: var(--text-main);
  position: relative;
  min-height: 100vh;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: -1;
  background:
    linear-gradient(to right, rgba(120, 160, 230, 0.08) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(120, 160, 230, 0.07) 1px, transparent 1px);
  background-size: 88px 88px;
  opacity: 0.38;
}

.app-layout {
  width: min(2200px, 100%);
  margin: 0 auto;
  padding: 1.25rem;
  box-sizing: border-box;
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: 1.25rem;
}

.left-pane,
.right-pane {
  min-width: 0;
}

.container {
  width: 100%;
}

h1 {
  margin-bottom: 0.2rem;
  margin-top: 0;
  letter-spacing: 0.2px;
  font-weight: 700;
}

.subtitle {
  margin-top: 0;
  color: var(--text-muted);
}

.card {
  background: linear-gradient(180deg, rgba(12, 18, 29, 0.98), rgba(10, 16, 25, 0.98));
  border: 1px solid var(--border);
  border-radius: 2px;
  padding: 1rem;
  margin-top: 1rem;
  box-shadow: 0 0 0 1px rgba(8, 12, 20, 0.6);
}

.drop-zone {
  border: 1px dashed var(--border-strong);
  border-radius: 2px;
  padding: 1.4rem;
  text-align: center;
  cursor: pointer;
  transition: border-color 0.15s ease, background 0.15s ease;
  background: rgba(8, 13, 22, 0.65);
}

.drop-zone.dragover {
  border-color: var(--accent-strong);
  background: rgba(59, 130, 255, 0.1);
}

.selected-file {
  margin-top: 0.8rem;
  margin-bottom: 0;
  color: #c9d7ef;
  font-size: 0.95rem;
}

.search-form {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 0.8rem;
  align-items: end;
}

label {
  display: grid;
  gap: 0.35rem;
  font-size: 0.95rem;
}

input,
button,
select {
  padding: 0.55rem;
  border-radius: 2px;
  border: 1px solid #22344d;
  background: #0c131f;
  color: var(--text-main);
}

button {
  align-self: end;
  cursor: pointer;
  background: var(--accent);
  border-color: var(--accent-strong);
  color: #f3f8ff;
  font-weight: 600;
  transition: background 0.15s ease, border-color 0.15s ease, transform 0.1s ease;
  white-space: nowrap;
}

button:hover:not(:disabled) {
  background: #3b7ef5;
  border-color: #5a97ff;
}

button:active:not(:disabled) {
  transform: translateY(1px);
}

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

.download-btn {
  margin-top: 0.6rem;
  background: var(--success);
  border-color: #2ea05e;
}

.download-btn:hover:not(:disabled) {
  background: #44cc7d;
  border-color: #3bb870;
}

.result-summary {
  font-size: 0.95rem;
  line-height: 1.5;
}

.result-summary .count {
  color: var(--highlight);
  font-weight: 700;
}

.result-summary.no-match {
  color: var(--text-muted);
}

.preview-card {
  margin-top: 0;
  height: calc(100vh - 5rem);
  min-height: 520px;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.preview-title {
  margin: 0;
  font-size: 1rem;
}

.preview-status {
  margin: 0;
  color: var(--text-muted);
  font-size: 0.92rem;
}

.preview-toolbar {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  gap: 0.65rem;
}

.preview-page-label {
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
  font-size: 0.9rem;
  min-width: 140px;
}

.preview-page-label select {
  padding: 0.45rem;
  border-radius: 2px;
  border: 1px solid #22344d;
  background: #0c131f;
  color: var(--text-main);
}

.match-info {
  font-size: 0.88rem;
  color: var(--text-muted);
  align-self: center;
  padding-bottom: 0.1rem;
}

.preview-stage {
  flex: 1;
  min-height: 0;
  overflow: auto;
  border: 1px solid var(--border);
  border-radius: 2px;
  background: #070b12;
  padding: 0.35rem;
}

.preview-canvas-stack {
  position: relative;
  display: inline-block;
  line-height: 0;
  vertical-align: top;
}

.pdf-render-canvas {
  display: block;
  max-width: 100%;
  height: auto;
}

.overlay {
  position: fixed;
  inset: 0;
  background: rgba(3, 6, 10, 0.8);
  display: grid;
  place-content: center;
  text-align: center;
  gap: 0.75rem;
  z-index: 100;
}

.spinner {
  width: 44px;
  height: 44px;
  border: 4px solid rgba(255, 255, 255, 0.25);
  border-top-color: #ffffff;
  border-radius: 50%;
  animation: spin 0.85s linear infinite;
  justify-self: center;
}

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

.hidden {
  display: none;
}

.success {
  border-left: 2px solid var(--success);
}

.error {
  border-left: 2px solid var(--danger);
}

.summary-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.summary-title {
  margin: 0;
  font-size: 1rem;
}

.copy-btn {
  padding: 0.35rem 0.7rem;
  font-size: 0.85rem;
  background: rgba(21, 34, 56, 0.9);
  border: 1px solid var(--border-strong);
  color: #d6e4ff;
  min-width: 60px;
}

.copy-btn:hover:not(:disabled) {
  border-color: var(--accent-strong);
  background: rgba(26, 45, 74, 0.95);
}

.copy-btn.copied {
  border-color: var(--success);
  color: var(--success);
}

.summary-table-wrap {
  margin-top: 0.75rem;
  max-height: 320px;
  overflow-y: auto;
}

.summary-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.85rem;
}

.summary-table th,
.summary-table td {
  text-align: left;
  padding: 0.4rem 0.55rem;
  border-bottom: 1px solid var(--border);
  white-space: nowrap;
}

.summary-table th {
  position: sticky;
  top: 0;
  background: var(--bg-elevated);
  color: var(--text-muted);
  font-weight: 600;
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.4px;
}

.summary-table td.desc {
  white-space: normal;
  word-break: break-word;
  max-width: 220px;
}

.summary-table td.amount {
  text-align: right;
  font-variant-numeric: tabular-nums;
}

.summary-table th:last-child {
  text-align: right;
}

.summary-table tbody tr:hover {
  background: rgba(47, 111, 230, 0.08);
}

/* ---- Extractor tab ---- */
.extractor-layout {
  width: min(2200px, 100%);
  margin: 0 auto;
  padding: 1.25rem;
  box-sizing: border-box;
  display: grid;
  grid-template-columns: 300px 1fr;
  gap: 1.25rem;
}

.extractor-sidebar {
  min-width: 0;
}

.extractor-results {
  min-width: 0;
}

.extractor-results-card {
  margin-top: 0;
  min-height: 400px;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.extractor-actions {
  display: flex;
  gap: 0.4rem;
}

.extractor-table-wrap {
  flex: 1;
  overflow: auto;
  margin-top: 0.5rem;
}

.extractor-table {
  min-width: 800px;
}

.extractor-table th:last-child,
.extractor-table td:last-child {
  text-align: left;
}

.extractor-table th[data-field] {
  cursor: pointer;
  user-select: none;
  position: relative;
  padding-right: 1.3rem;
}

.extractor-table th[data-field]:hover {
  color: var(--text-main);
}

.extractor-table th[data-field]::after {
  content: "";
  position: absolute;
  right: 0.35rem;
  top: 50%;
  transform: translateY(-50%);
  font-size: 0.7rem;
  color: var(--text-muted);
  opacity: 0.4;
}

.extractor-table th.sort-asc::after {
  content: "\25B2";
  opacity: 1;
  color: var(--accent-strong);
}

.extractor-table th.sort-desc::after {
  content: "\25BC";
  opacity: 1;
  color: var(--accent-strong);
}

.extractor-table td.cell-empty {
  background: var(--warning-bg);
}

.extractor-table td.cell-filename {
  white-space: normal;
  word-break: break-all;
  max-width: 180px;
  font-size: 0.8rem;
}

@media (max-width: 760px) {
  .app-layout {
    grid-template-columns: 1fr;
    padding: 0.8rem;
  }

  .preview-card {
    height: 500px;
    min-height: 500px;
  }

  .search-form {
    grid-template-columns: 1fr;
  }

  .extractor-layout {
    grid-template-columns: 1fr;
  }
}