/* ===== RESET & BASE ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --black: #000000;
  --white: #ffffff;
  --gray-100: #f5f5f5;
  --gray-200: #e8e8e8;
  --gray-300: #d0d0d0;
  --gray-500: #888888;
  --gray-700: #444444;
  --font: 'Arial', sans-serif;
  --radius: 4px;
}

html { font-size: 14px; }

body {
  font-family: var(--font);
  background: var(--white);
  color: var(--black);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* ===== HEADER ===== */
header {
  background: var(--black);
  color: var(--white);
  padding: 0 24px;
  height: 56px;
  display: flex;
  align-items: center;
  flex-shrink: 0;
}

.header-inner {
  display: flex;
  align-items: baseline;
  gap: 16px;
  width: 100%;
}

.logo {
  font-size: 22px;
  font-weight: 700;
  letter-spacing: 2px;
}

.tagline {
  font-size: 12px;
  color: var(--gray-300);
  letter-spacing: 0.5px;
}

/* ===== TABS NAV ===== */
.tabs {
  background: var(--white);
  border-bottom: 2px solid var(--black);
  display: flex;
  overflow-x: auto;
  flex-shrink: 0;
}

.tab-btn {
  background: none;
  border: none;
  border-bottom: 3px solid transparent;
  margin-bottom: -2px;
  padding: 14px 22px;
  font-family: var(--font);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.5px;
  cursor: pointer;
  color: var(--gray-500);
  white-space: nowrap;
  transition: color 0.15s, border-color 0.15s;
}

.tab-btn:hover { color: var(--black); }

.tab-btn.active {
  color: var(--black);
  border-bottom-color: var(--black);
}

/* ===== MAIN ===== */
main {
  flex: 1;
  overflow: auto;
}

.tab-content {
  display: none;
  padding: 28px 28px 48px;
  max-width: 1200px;
  margin: 0 auto;
  width: 100%;
}

.tab-content.active { display: block; }

/* ===== SECTION TITLE ===== */
.section-title {
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 8px;
  letter-spacing: 0.3px;
}

/* ===== DISCLAIMER ===== */
.disclaimer {
  background: var(--gray-100);
  border-left: 3px solid var(--black);
  padding: 8px 14px;
  font-size: 11px;
  color: var(--gray-700);
  margin-bottom: 24px;
}

/* ===== UPLOAD ZONE ===== */
.upload-zone {
  border: 2px dashed var(--gray-300);
  border-radius: var(--radius);
  padding: 48px 24px;
  text-align: center;
  cursor: pointer;
  transition: border-color 0.2s, background 0.2s;
  margin-bottom: 20px;
}

.upload-zone:hover, .upload-zone.drag-over {
  border-color: var(--black);
  background: var(--gray-100);
}

.upload-icon {
  font-size: 40px;
  margin-bottom: 12px;
  color: var(--gray-500);
}

.upload-text {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 6px;
}

.upload-sub {
  font-size: 12px;
  color: var(--gray-500);
  margin-bottom: 20px;
}

/* ===== BUTTONS ===== */
.btn-primary {
  display: inline-block;
  background: var(--black);
  color: var(--white);
  border: none;
  padding: 10px 24px;
  font-family: var(--font);
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  border-radius: var(--radius);
  letter-spacing: 0.3px;
  transition: opacity 0.15s;
}

.btn-primary:hover { opacity: 0.8; }

.btn-outline {
  display: inline-block;
  background: var(--white);
  color: var(--black);
  border: 2px solid var(--black);
  padding: 9px 20px;
  font-family: var(--font);
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  border-radius: var(--radius);
  transition: background 0.15s, color 0.15s;
  width: 100%;
  margin-top: 12px;
}

.btn-outline:hover {
  background: var(--black);
  color: var(--white);
}

/* ===== FILE LIST ===== */
.file-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 20px;
}

.file-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 14px;
  border: 1px solid var(--gray-200);
  border-radius: var(--radius);
  background: var(--gray-100);
}

.file-item .file-name { flex: 1; font-weight: 600; font-size: 13px; }
.file-item .file-size { color: var(--gray-500); font-size: 12px; }
.file-item .file-status { font-size: 12px; font-weight: 600; }
.file-item .file-status.ok { color: #2a7a2a; }
.file-item .file-status.err { color: #c00; }
.file-item .file-status.pending { color: var(--gray-500); }

.file-remove {
  background: none;
  border: none;
  cursor: pointer;
  font-size: 16px;
  color: var(--gray-500);
  padding: 0 4px;
}

/* ===== PARSE STATUS ===== */
.parse-status {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px;
  background: var(--gray-100);
  border-radius: var(--radius);
  margin-bottom: 16px;
  font-size: 13px;
}

.spinner {
  width: 18px;
  height: 18px;
  border: 2px solid var(--gray-300);
  border-top-color: var(--black);
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
  flex-shrink: 0;
}

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

/* ===== ACCOUNT CARDS ===== */
.account-cards {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 24px;
}

.account-card {
  border: 2px solid var(--black);
  border-radius: var(--radius);
  padding: 14px 18px;
  min-width: 200px;
}

.account-card .ac-bank { font-size: 11px; font-weight: 700; letter-spacing: 1px; color: var(--gray-500); text-transform: uppercase; }
.account-card .ac-name { font-size: 15px; font-weight: 700; margin: 4px 0; }
.account-card .ac-num { font-size: 11px; color: var(--gray-500); margin-bottom: 8px; }
.account-card .ac-bal { font-size: 18px; font-weight: 700; }
.account-card .ac-bal-label { font-size: 11px; color: var(--gray-500); }

/* ===== KPI GRID ===== */
.kpi-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
  gap: 12px;
  margin-bottom: 28px;
}

.kpi-card {
  border: 1px solid var(--gray-200);
  border-radius: var(--radius);
  padding: 14px 16px;
  background: var(--gray-100);
}

.kpi-label { font-size: 11px; color: var(--gray-500); font-weight: 600; text-transform: uppercase; letter-spacing: 0.5px; margin-bottom: 6px; }
.kpi-value { font-size: 20px; font-weight: 700; }
.kpi-sub { font-size: 11px; color: var(--gray-500); margin-top: 2px; }

/* ===== CHARTS ===== */
.charts-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(480px, 1fr));
  gap: 20px;
}

.chart-box {
  border: 1px solid var(--gray-200);
  border-radius: var(--radius);
  padding: 18px;
}

.chart-title {
  font-size: 13px;
  font-weight: 700;
  margin-bottom: 14px;
  letter-spacing: 0.3px;
}

/* ===== FILTER BAR ===== */
.filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 16px;
}

.filter-bar input,
.filter-bar select {
  border: 1px solid var(--gray-300);
  border-radius: var(--radius);
  padding: 8px 12px;
  font-family: var(--font);
  font-size: 13px;
  background: var(--white);
  color: var(--black);
  outline: none;
}

.filter-bar input { flex: 1; min-width: 200px; }
.filter-bar input:focus, .filter-bar select:focus { border-color: var(--black); }

/* ===== TABLE ===== */
.table-wrap {
  overflow-x: auto;
  border: 1px solid var(--gray-200);
  border-radius: var(--radius);
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
}

thead th {
  background: var(--black);
  color: var(--white);
  padding: 10px 12px;
  text-align: left;
  font-weight: 600;
  white-space: nowrap;
  font-size: 12px;
  letter-spacing: 0.3px;
}

tbody tr { border-bottom: 1px solid var(--gray-200); }
tbody tr:hover { background: var(--gray-100); }
tbody td { padding: 9px 12px; vertical-align: middle; }

.tx-credit { color: #1a6b1a; font-weight: 600; }
.tx-debit { color: #8b0000; font-weight: 600; }

.badge {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 10px;
  font-size: 11px;
  font-weight: 600;
  background: var(--gray-200);
  color: var(--gray-700);
}

/* ===== PAGINATION ===== */
.pagination {
  display: flex;
  gap: 6px;
  margin-top: 14px;
  flex-wrap: wrap;
}

.page-btn {
  border: 1px solid var(--gray-300);
  background: var(--white);
  padding: 6px 12px;
  font-family: var(--font);
  font-size: 12px;
  cursor: pointer;
  border-radius: var(--radius);
}

.page-btn.active {
  background: var(--black);
  color: var(--white);
  border-color: var(--black);
}

.page-btn:hover:not(.active) { background: var(--gray-100); }

/* ===== LEDGER CARDS ===== */
#ledgerCards {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.ledger-card {
  border: 1px solid var(--gray-200);
  border-radius: var(--radius);
  overflow: hidden;
}

.ledger-header {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 12px 16px;
  background: var(--gray-100);
  cursor: pointer;
  user-select: none;
}

.ledger-header:hover { background: var(--gray-200); }

.ledger-holder {
  font-size: 11px;
  color: #666;
  margin-top: 2px;
  font-family: Arial, sans-serif;
  letter-spacing: 0.02em;
}

.ledger-name { font-weight: 700; font-size: 14px; flex: 1; }
.ledger-stats { display: flex; gap: 20px; font-size: 12px; }
.ledger-stat { text-align: right; }
.ledger-stat-label { color: var(--gray-500); }
.ledger-stat-val { font-weight: 700; }
.ledger-toggle { font-size: 16px; color: var(--gray-500); }

.ledger-body {
  display: none;
  overflow-x: auto;
}

.ledger-body.open { display: block; }

.ledger-body table { font-size: 12px; }

/* ===== TAX CONTENT ===== */
.tax-section {
  margin-bottom: 28px;
}

.tax-section-title {
  font-size: 15px;
  font-weight: 700;
  border-bottom: 2px solid var(--black);
  padding-bottom: 6px;
  margin-bottom: 14px;
}

.tax-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
  margin-bottom: 12px;
}

.tax-table th {
  background: var(--black);
  color: var(--white);
  padding: 8px 12px;
  text-align: left;
  font-size: 12px;
}

.tax-table td {
  padding: 8px 12px;
  border-bottom: 1px solid var(--gray-200);
}

.tax-table tr:last-child td {
  font-weight: 700;
  background: var(--gray-100);
}

.tax-note {
  font-size: 12px;
  color: var(--gray-700);
  background: var(--gray-100);
  border-left: 3px solid var(--gray-300);
  padding: 8px 12px;
  margin-top: 8px;
}

.suggestion-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.suggestion-list li {
  padding: 10px 14px;
  border: 1px solid var(--gray-200);
  border-radius: var(--radius);
  font-size: 13px;
  background: var(--gray-100);
}

.suggestion-list li::before {
  content: "✓ ";
  font-weight: 700;
}

/* ===== EXPORT GRID ===== */
.export-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 16px;
}

.export-card {
  border: 1px solid var(--gray-200);
  border-radius: var(--radius);
  padding: 20px 18px;
  text-align: center;
}

.export-icon { font-size: 32px; margin-bottom: 10px; }
.export-name { font-size: 14px; font-weight: 700; margin-bottom: 6px; }
.export-desc { font-size: 12px; color: var(--gray-500); margin-bottom: 4px; }

/* ===== EMPTY STATE ===== */
.empty-state {
  text-align: center;
  padding: 60px 20px;
  color: var(--gray-500);
  font-size: 14px;
  border: 2px dashed var(--gray-300);
  border-radius: var(--radius);
}

/* ===== FOOTER ===== */
footer {
  background: var(--black);
  color: var(--gray-300);
  padding: 12px 24px;
  display: flex;
  justify-content: space-between;
  font-size: 11px;
  flex-shrink: 0;
  flex-wrap: wrap;
  gap: 8px;
}

/* ===== ACCOUNT CARD — BALANCE ROW ===== */
.ac-bal-row {
  display: flex;
  gap: 20px;
  margin: 8px 0 6px;
}

.ac-bal-open {
  font-size: 15px;
  font-weight: 600;
  color: var(--gray-700);
}

.ac-recon {
  font-size: 11px;
  font-weight: 700;
  padding: 3px 8px;
  border-radius: 10px;
  display: inline-block;
  margin-top: 4px;
}

.ac-recon.ok   { background: #e6f4e6; color: #1a6b1a; border: 1px solid #b3d9b3; }
.ac-recon.warn { background: #fff3e0; color: #8b4000; border: 1px solid #ffcc80; }

.ac-txcount {
  font-size: 11px;
  color: var(--gray-500);
  margin-top: 4px;
}

/* ===== LEDGER INTEGRITY BANNER ===== */
.ledger-integrity-banner {
  padding: 10px 16px;
  border-radius: var(--radius);
  font-size: 12px;
  font-weight: 600;
  margin-bottom: 12px;
}

.ledger-integrity-banner.ok   { background: #e6f4e6; color: #1a6b1a; border: 1px solid #b3d9b3; }
.ledger-integrity-banner.warn { background: #fff3e0; color: #8b4000; border: 1px solid #ffcc80; }

/* ===== LEDGER DOWNLOAD BUTTONS ===== */
.ledger-actions {
  display: flex;
  gap: 6px;
  flex-shrink: 0;
}

.ledger-dl-btn {
  background: var(--white);
  border: 1px solid var(--gray-300);
  border-radius: var(--radius);
  padding: 4px 10px;
  font-family: var(--font);
  font-size: 11px;
  font-weight: 600;
  cursor: pointer;
  color: var(--black);
  transition: background 0.15s, border-color 0.15s;
  white-space: nowrap;
}

.ledger-dl-btn:hover {
  background: var(--black);
  color: var(--white);
  border-color: var(--black);
}

.ledger-dl-xlsx {
  border-color: var(--gray-500);
}

/* ===== LEDGER TABLE FOOTER TOTAL ROW ===== */
.ledger-total-row td {
  background: var(--gray-100);
  border-top: 2px solid var(--black);
  padding: 8px 12px;
  font-size: 12px;
}

/* ===== RESPONSIVE ===== */
@media (max-width: 768px) {
  .tab-content { padding: 16px 14px 40px; }
  .charts-grid { grid-template-columns: 1fr; }
  .kpi-grid { grid-template-columns: repeat(2, 1fr); }
  .export-grid { grid-template-columns: 1fr 1fr; }
  footer { flex-direction: column; }
  .ledger-actions { display: none; }
}

@media (max-width: 480px) {
  .kpi-grid { grid-template-columns: 1fr 1fr; }
  .export-grid { grid-template-columns: 1fr; }
  .ledger-stats { display: none; }
  .ac-bal-row { flex-direction: column; gap: 8px; }
}