:root {
  --primary: #1e40af;
  --primary-hover: #1d4ed8;
  --primary-light: #eff6ff;
  --secondary: #475569;
  --secondary-light: #f1f5f9;
  --success: #059669;
  --success-light: #ecfdf5;
  --warning: #d97706;
  --warning-light: #fffbeb;
  --danger: #dc2626;
  --danger-light: #fef2f2;
  --accent: #7c3aed;
  --bg-main: #f8fafc;
  --bg-card: #ffffff;
  --border-color: #e2e8f0;
  --text-main: #0f172a;
  --text-muted: #64748b;
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
  --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
  --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}

body {
  background-color: var(--bg-main);
  color: var(--text-main);
  font-size: 14px;
  line-height: 1.5;
  min-height: 100vh;
}

/* ================= Navbar ================= */
.navbar {
  background: var(--bg-card);
  border-bottom: 1px solid var(--border-color);
  padding: 12px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: sticky;
  top: 0;
  z-index: 50;
  box-shadow: var(--shadow-sm);
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: 12px;
}

.logo-badge {
  background: linear-gradient(135deg, #1e40af, #3b82f6);
  color: #fff;
  font-weight: 700;
  font-size: 13px;
  padding: 6px 12px;
  border-radius: var(--radius-md);
  letter-spacing: 0.5px;
}

.brand-text h1 {
  font-size: 16px;
  font-weight: 700;
  color: var(--text-main);
}

.brand-text span {
  font-size: 11px;
  color: var(--text-muted);
}

.nav-tabs {
  display: flex;
  gap: 6px;
  background: var(--secondary-light);
  padding: 4px;
  border-radius: var(--radius-md);
}

.tab-btn {
  background: transparent;
  border: none;
  padding: 8px 16px;
  font-size: 13px;
  font-weight: 500;
  color: var(--text-muted);
  cursor: pointer;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  gap: 6px;
  transition: all 0.2s ease;
}

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

.tab-btn.active {
  background: #ffffff;
  color: var(--primary);
  font-weight: 600;
  box-shadow: var(--shadow-sm);
}

.nav-status {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  color: var(--text-muted);
}

.pulse-indicator {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--success);
  display: inline-block;
  box-shadow: 0 0 0 2px rgba(5, 150, 105, 0.2);
}

/* ================= Layout & Container ================= */
.container {
  max-width: 1440px;
  margin: 20px auto;
  padding: 0 20px 40px;
}

.tab-content {
  display: none;
}

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

.grid-layout {
  display: grid;
  grid-template-columns: 420px 1fr;
  gap: 20px;
  align-items: start;
}

@media (max-width: 1024px) {
  .grid-layout {
    grid-template-columns: 1fr;
  }
}

/* ================= Panel & Cards ================= */
.panel {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  padding: 20px;
}

.panel-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 18px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--border-color);
}

.panel-header h2 {
  font-size: 16px;
  font-weight: 600;
  color: var(--text-main);
}

.panel-header .subtitle {
  font-size: 12px;
  color: var(--text-muted);
  margin-top: 4px;
}

/* ================= Form Controls ================= */
.form-group {
  margin-bottom: 14px;
}

.form-group.col-6 { flex: 0 0 calc(50% - 8px); }
.form-group.col-4 { flex: 0 0 calc(33.33% - 8px); }

.form-row {
  display: flex;
  gap: 16px;
  margin-bottom: 14px;
}

label {
  display: block;
  font-size: 12px;
  font-weight: 600;
  color: var(--text-main);
  margin-bottom: 6px;
}

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

.form-control {
  width: 100%;
  padding: 8px 12px;
  font-size: 13px;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  background: #ffffff;
  color: var(--text-main);
  outline: none;
  transition: border-color 0.2s;
}

.form-control:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 2px rgba(30, 64, 175, 0.1);
}

.booking-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.booking-grid .full-width {
  grid-column: span 2;
}

/* ================= Badges ================= */
.badge {
  display: inline-block;
  padding: 3px 8px;
  border-radius: var(--radius-sm);
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
}

.badge-info { background: var(--primary-light); color: var(--primary); }
.badge-success { background: var(--success-light); color: var(--success); }
.badge-warning { background: var(--warning-light); color: var(--warning); }
.badge-danger { background: var(--danger-light); color: var(--danger); }

/* ================= Port Info Box ================= */
.port-info-box {
  background: var(--secondary-light);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: 10px 14px;
  margin-top: 10px;
}

.info-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 6px;
  font-size: 12px;
}

.info-label {
  font-weight: 500;
  color: var(--text-muted);
}

.info-desc {
  font-size: 11px;
  color: var(--text-muted);
  line-height: 1.4;
  margin-top: 6px;
  border-top: 1px dashed var(--border-color);
  padding-top: 6px;
}

/* ================= Drop Zone ================= */
.drop-zone {
  border: 2px dashed #cbd5e1;
  border-radius: var(--radius-md);
  padding: 20px;
  text-align: center;
  cursor: pointer;
  background: #f8fafc;
  transition: all 0.2s;
}

.drop-zone:hover, .drop-zone.dragover {
  border-color: var(--primary);
  background: var(--primary-light);
}

.file-input-hidden {
  display: none;
}

.drop-zone-content p {
  font-size: 13px;
  margin: 6px 0;
  color: var(--text-main);
}

.upload-icon {
  font-size: 28px;
}

.file-note {
  font-size: 11px;
  color: var(--text-muted);
}

.file-info {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--primary-light);
  border: 1px solid #bfdbfe;
  padding: 8px 12px;
  border-radius: var(--radius-sm);
  margin-top: 8px;
}

.file-name {
  font-size: 12px;
  font-weight: 600;
  color: var(--primary);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.file-info-left {
  display: flex;
  align-items: center;
  gap: 8px;
  overflow: hidden;
}

.file-info-actions {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-shrink: 0;
}

.badge-gemini {
  font-size: 11px;
  font-weight: 600;
  color: #7c3aed;
  background: #f5f3ff;
  border: 1px solid #ddd6fe;
  padding: 2px 8px;
  border-radius: var(--radius-sm);
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

.btn-xs {
  padding: 2px 8px;
  font-size: 11px;
  font-weight: 600;
}

/* ================= Smart Paste Card ================= */
.smart-paste-card {
  background: #f0fdf4;
  border: 1px solid #bbf7d0;
  border-radius: var(--radius-md);
  padding: 12px 16px;
  margin-bottom: 16px;
}

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

.smart-paste-header .title {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--success);
  font-size: 13px;
}

.paste-input-area {
  margin-top: 10px;
}

.paste-hint {
  font-size: 12px;
  color: #166534;
  margin-bottom: 6px;
}

.paste-actions {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 8px;
}

.paste-example {
  font-size: 11px;
  color: var(--text-muted);
}

/* ================= Data Table ================= */
.table-responsive {
  overflow-x: auto;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  background: #ffffff;
}

.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 12px;
}

.data-table th {
  background: #f8fafc;
  padding: 8px 10px;
  font-weight: 600;
  text-align: left;
  border-bottom: 1px solid var(--border-color);
  color: var(--text-muted);
  white-space: nowrap;
}

.data-table td {
  padding: 6px 8px;
  border-bottom: 1px solid var(--border-color);
}

.data-table tbody tr:hover {
  background: #f8fafc;
}

.cell-input {
  width: 100%;
  padding: 6px 8px;
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  font-size: 12px;
  background: transparent;
  outline: none;
}

.cell-input:focus, .cell-input:hover {
  background: #ffffff;
  border-color: var(--border-color);
}

.cell-input.invalid {
  border-color: var(--danger);
  background: var(--danger-light);
}

.btn-remove-row {
  background: transparent;
  border: none;
  color: var(--danger);
  cursor: pointer;
  padding: 4px 6px;
  font-size: 14px;
}

.table-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 12px;
  padding: 4px 0;
}

.left-tools {
  display: flex;
  gap: 8px;
}

.right-summary {
  display: flex;
  gap: 16px;
  font-size: 13px;
}

.right-summary strong {
  color: var(--primary);
}

/* ================= Execution Card ================= */
.execution-card {
  margin-top: 24px;
  padding: 18px;
  background: var(--secondary-light);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  text-align: center;
}

.action-buttons {
  display: flex;
  gap: 14px;
  justify-content: center;
}

.action-help {
  font-size: 12px;
  color: var(--text-muted);
  margin-top: 10px;
}

/* ================= Result Box ================= */
.result-box {
  margin-top: 20px;
  background: #ffffff;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
  overflow: hidden;
}

.result-header {
  padding: 12px 18px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--border-color);
}

.result-body {
  padding: 18px;
}

.result-kpis {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  margin-bottom: 16px;
}

.kpi-item {
  background: var(--bg-main);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: 10px;
  text-align: center;
}

.kpi-label {
  display: block;
  font-size: 11px;
  color: var(--text-muted);
  margin-bottom: 4px;
}

.kpi-value {
  font-size: 16px;
  font-weight: 700;
}

.text-primary { color: var(--primary); }
.text-accent { color: var(--accent); }
.text-danger { color: var(--danger); }
.text-code { font-family: monospace; font-size: 12px; }

/* VietQR View */
.qr-container {
  margin-top: 16px;
  padding: 14px;
  background: #eff6ff;
  border: 1px solid #bfdbfe;
  border-radius: var(--radius-md);
}

.qr-card {
  display: flex;
  gap: 20px;
  align-items: center;
  margin-top: 10px;
}

.qr-img {
  width: 180px;
  height: 180px;
  border-radius: var(--radius-sm);
  border: 1px solid #cbd5e1;
  background: #ffffff;
}

.log-details {
  margin-top: 14px;
}

.log-details summary {
  font-size: 12px;
  cursor: pointer;
  color: var(--primary);
  font-weight: 600;
}

.log-console {
  background: #0f172a;
  color: #38bdf8;
  padding: 12px;
  border-radius: var(--radius-sm);
  font-family: Consolas, monospace;
  font-size: 11px;
  max-height: 250px;
  overflow-y: auto;
  margin-top: 8px;
  white-space: pre-wrap;
}

/* ================= Tab 2: Accounts Grid ================= */
.accounts-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(360px, 1fr));
  gap: 16px;
}

.account-card {
  background: #ffffff;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 16px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  box-shadow: var(--shadow-sm);
  transition: all 0.2s;
}

.account-card:hover {
  border-color: var(--primary);
  box-shadow: var(--shadow-md);
}

.acc-card-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  margin-bottom: 12px;
}

.acc-card-header h3 {
  font-size: 15px;
  font-weight: 600;
  color: var(--text-main);
}

.acc-card-body {
  font-size: 12px;
  color: var(--text-muted);
  line-height: 1.6;
  margin-bottom: 16px;
}

.acc-card-body div {
  margin-bottom: 4px;
}

.acc-card-body strong {
  color: var(--text-main);
}

.card-tax-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 8px !important;
  padding-bottom: 6px;
  border-bottom: 1px dashed var(--border-color);
}

.card-tax-selector-wrap {
  display: flex;
  align-items: center;
  gap: 6px;
}

.card-tax-select {
  font-size: 12px;
  font-weight: 600;
  padding: 3px 8px;
  border-radius: var(--radius-sm);
  border: 1px solid #93c5fd;
  background-color: #eff6ff;
  color: #1e40af;
  cursor: pointer;
}

.acc-card-actions {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 10px;
}

.btn-secondary-outline {
  background: #f8fafc;
  border: 1px solid #cbd5e1;
  color: var(--secondary);
}

.btn-secondary-outline:hover {
  background: #f1f5f9;
  border-color: #94a3b8;
}

.inline-tax-control {
  display: flex;
  align-items: center;
  gap: 8px;
}

.port-tax-select {
  font-size: 13px;
  font-weight: 600;
  padding: 4px 8px;
  border-radius: var(--radius-sm);
  border: 1px solid #93c5fd;
  background-color: #eff6ff;
  color: #1e40af;
  cursor: pointer;
}

/* ================= Buttons ================= */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 8px 16px;
  font-size: 13px;
  font-weight: 600;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  cursor: pointer;
  transition: all 0.2s;
}

.btn-lg {
  padding: 12px 24px;
  font-size: 14px;
}

.btn-sm {
  padding: 4px 10px;
  font-size: 12px;
}

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

.btn-success { background: var(--success); color: #fff; }
.btn-success:hover { background: #047857; }

.btn-secondary { background: var(--secondary); color: #fff; }
.btn-secondary:hover { background: #334155; }

.btn-outline { background: #fff; border-color: var(--border-color); color: var(--text-main); }
.btn-outline:hover { background: var(--secondary-light); }

.btn-danger-outline { background: #fff; border-color: #fecaca; color: var(--danger); }
.btn-danger-outline:hover { background: var(--danger-light); }

.btn-text { background: transparent; border: none; color: var(--primary); cursor: pointer; font-size: 12px; }
.btn-text:hover { text-decoration: underline; }

/* ================= Modal ================= */
.modal {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 100;
}

.modal-content {
  background: #fff;
  border-radius: var(--radius-lg);
  width: 600px;
  max-width: 90vw;
  box-shadow: var(--shadow-lg);
  overflow: hidden;
}

.modal-header {
  padding: 16px 20px;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.modal-close {
  background: transparent;
  border: none;
  font-size: 20px;
  cursor: pointer;
  color: var(--text-muted);
}

.modal-body {
  padding: 20px;
  max-height: 75vh;
  overflow-y: auto;
}

.modal-footer {
  padding: 12px 20px;
  border-top: 1px solid var(--border-color);
  display: flex;
  justify-content: flex-end;
  gap: 10px;
  background: var(--secondary-light);
}

.password-wrapper {
  position: relative;
  display: flex;
  align-items: center;
}

.password-wrapper input {
  padding-right: 36px;
}

.password-wrapper button {
  position: absolute;
  right: 8px;
}

/* ================= Alert & Loading ================= */
.alert {
  padding: 12px 16px;
  border-radius: var(--radius-sm);
  margin-top: 12px;
  font-size: 12px;
}

.alert-warning {
  background: var(--warning-light);
  border: 1px solid #fde68a;
  color: #92400e;
}

.alert ul {
  padding-left: 20px;
  margin-top: 6px;
}

.loading-overlay {
  position: fixed;
  inset: 0;
  background: rgba(15, 23, 42, 0.7);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  z-index: 200;
  color: #fff;
}

.spinner {
  width: 48px;
  height: 48px;
  border: 5px solid rgba(255, 255, 255, 0.2);
  border-top-color: #ffffff;
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
  margin-bottom: 14px;
}

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

.hidden {
  display: none !important;
}

/* ================= Smart Paste Header Tools ================= */
.smart-paste-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 10px;
}

.smart-paste-tools {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-wrap: wrap;
}

.btn-template {
  background: #f0fdf4 !important;
  color: #166534 !important;
  border-color: #bbf7d0 !important;
  font-weight: 600;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
}

.btn-template:hover {
  background: #dcfce7 !important;
  border-color: #86efac !important;
}

.btn-import {
  background: #eff6ff !important;
  color: #1e40af !important;
  border-color: #bfdbfe !important;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
}

.btn-import:hover {
  background: #dbeafe !important;
  border-color: #93c5fd !important;
}

.cursor-pointer {
  cursor: pointer;
}

/* ================= Tax Profile Management ================= */
.tax-management-card {
  background: #f8fafc;
  border: 1px solid #cbd5e1;
  border-radius: var(--radius-md);
  padding: 12px 16px;
  margin-bottom: 20px;
}

.tax-mgmt-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
}

.tax-mgmt-left {
  display: flex;
  align-items: center;
  gap: 10px;
}

.tax-icon {
  font-size: 26px;
}

.text-xs {
  font-size: 11px;
}

.tax-mgmt-actions {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.tax-select {
  font-weight: 600;
  min-width: 220px;
  background: #ffffff;
}

.btn-danger-outline {
  border: 1px solid #fca5a5;
  background: #fff;
  color: #b91c1c;
}

.btn-danger-outline:hover {
  background: #fef2f2;
  border-color: #ef4444;
}

.badge-safety {
  background: #ecfdf5;
  color: #065f46;
  border: 1px solid #a7f3d0;
  font-size: 11px;
  padding: 3px 8px;
  border-radius: 9999px;
  font-weight: 600;
}

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

.modal-sm {
  max-width: 480px;
}

.checkbox-container {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  cursor: pointer;
  user-select: none;
}

.badge-gemini {
  background: #f5f3ff;
  color: #6d28d9;
  border: 1px solid #ddd6fe;
  font-size: 11px;
  padding: 3px 8px;
  border-radius: 9999px;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

.btn-gemini-excel {
  background: #f5f3ff;
  color: #7c3aed;
  border-color: #c4b5fd;
  font-weight: 600;
}
.btn-gemini-excel:hover {
  background: #ede9fe;
  border-color: #8b5cf6;
  color: #5b21b6;
}