/* Modern Accounting Ledger OCR & Sync Engine Stylesheet */
:root {
  --primary: #2563eb;
  --primary-dark: #1d4ed8;
  --primary-light: #eff6ff;
  --emerald: #059669;
  --emerald-light: #ecfdf5;
  --amber: #d97706;
  --amber-light: #fffbeb;
  --rose: #e11d48;
  --rose-light: #fff1f2;
  --slate-900: #0f172a;
  --slate-800: #1e293b;
  --slate-700: #334155;
  --slate-600: #475569;
  --slate-500: #64748b;
  --slate-400: #94a3b8;
  --slate-300: #cbd5e1;
  --slate-200: #e2e8f0;
  --slate-100: #f1f5f9;
  --slate-50: #f8fafc;
  --card-bg: #ffffff;
  --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);
  --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background-color: #f8fafc;
  color: var(--slate-800);
  line-height: 1.5;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* Header & Navigation */
.navbar {
  background: var(--slate-900);
  color: #ffffff;
  padding: 0.85rem 1.75rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 1px solid var(--slate-800);
  position: sticky;
  top: 0;
  z-index: 50;
  box-shadow: 0 4px 12px rgba(15, 23, 42, 0.15);
}

.brand-wrapper {
  display: flex;
  align-items: center;
  gap: 0.85rem;
}

.brand-logo {
  width: 42px;
  height: 42px;
  background: linear-gradient(135deg, #3b82f6, #10b981);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #ffffff;
  font-size: 1.25rem;
  box-shadow: 0 4px 10px rgba(37, 99, 235, 0.3);
}

.brand-title {
  font-size: 1.15rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.badge-version {
  font-size: 0.7rem;
  font-weight: 600;
  background: rgba(255, 255, 255, 0.15);
  padding: 0.15rem 0.45rem;
  border-radius: 4px;
  letter-spacing: 0.05em;
  color: #93c5fd;
}

.brand-subtitle {
  font-size: 0.78rem;
  color: var(--slate-400);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

/* Stepper Workflow Bar */
.stepper-container {
  background: #ffffff;
  border-bottom: 1px solid var(--slate-200);
  padding: 0.85rem 1.75rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  box-shadow: var(--shadow-sm);
}

.stepper {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.step-item {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--slate-400);
  font-weight: 500;
  font-size: 0.88rem;
  cursor: pointer;
  transition: all 0.2s ease;
}

.step-item.active {
  color: var(--primary);
  font-weight: 600;
}

.step-item.completed {
  color: var(--emerald);
}

.step-bubble {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  border: 2px solid var(--slate-300);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.8rem;
  font-weight: 600;
  transition: all 0.2s;
}

.step-item.active .step-bubble {
  border-color: var(--primary);
  background: var(--primary-light);
  color: var(--primary);
}

.step-item.completed .step-bubble {
  border-color: var(--emerald);
  background: var(--emerald);
  color: #ffffff;
}

.step-arrow {
  color: var(--slate-300);
  font-size: 0.9rem;
}

/* Main Container */
.main-content {
  flex: 1;
  padding: 1.5rem 1.75rem;
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

/* Glassmorphic / Modern Cards */
.card {
  background: #ffffff;
  border-radius: var(--radius-lg);
  border: 1px solid var(--slate-200);
  box-shadow: var(--shadow-md);
  padding: 1.25rem;
  transition: box-shadow 0.2s ease;
}

.card:hover {
  box-shadow: var(--shadow-lg);
}

.card-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1rem;
  padding-bottom: 0.75rem;
  border-bottom: 1px solid var(--slate-100);
}

.card-title {
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--slate-900);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

/* Destination Bar */
.destination-bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 1.25rem;
  background: #ffffff;
  border-radius: var(--radius-md);
  padding: 1rem 1.25rem;
  border: 1px solid var(--slate-200);
}

.dest-options {
  display: flex;
  background: var(--slate-100);
  padding: 0.25rem;
  border-radius: var(--radius-sm);
  gap: 0.25rem;
}

.dest-btn {
  padding: 0.5rem 1rem;
  font-size: 0.85rem;
  font-weight: 500;
  border: none;
  background: transparent;
  color: var(--slate-600);
  border-radius: var(--radius-sm);
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 0.4rem;
  transition: all 0.2s ease;
}

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

.sheets-input-group {
  flex: 1;
  display: flex;
  gap: 0.5rem;
  min-width: 320px;
}

.input-field {
  flex: 1;
  padding: 0.55rem 0.85rem;
  font-size: 0.88rem;
  border: 1px solid var(--slate-300);
  border-radius: var(--radius-sm);
  background: #ffffff;
  color: var(--slate-800);
  outline: none;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.input-field:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.15);
}

.select-field {
  padding: 0.55rem 0.85rem;
  font-size: 0.88rem;
  border: 1px solid var(--slate-300);
  border-radius: var(--radius-sm);
  background: #ffffff;
  color: var(--slate-800);
  min-width: 160px;
  outline: none;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.45rem;
  padding: 0.55rem 1.15rem;
  font-size: 0.88rem;
  font-weight: 500;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  cursor: pointer;
  transition: all 0.2s ease;
  white-space: nowrap;
}

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

.btn-primary:hover {
  background: var(--primary-dark);
  box-shadow: 0 4px 10px rgba(37, 99, 235, 0.25);
}

.btn-success {
  background: var(--emerald);
  color: #ffffff;
}

.btn-success:hover {
  background: #047857;
  box-shadow: 0 4px 10px rgba(5, 150, 105, 0.25);
}

.btn-secondary {
  background: #ffffff;
  color: var(--slate-700);
  border-color: var(--slate-300);
}

.btn-secondary:hover {
  background: var(--slate-50);
  border-color: var(--slate-400);
}

.btn-outline-danger {
  background: transparent;
  color: var(--rose);
  border-color: #fecdd3;
}

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

.btn-sm {
  padding: 0.35rem 0.75rem;
  font-size: 0.78rem;
}

.btn-lg {
  padding: 0.75rem 1.6rem;
  font-size: 1rem;
  font-weight: 600;
}

/* Upload Dropzone */
.dropzone {
  border: 2px dashed var(--slate-300);
  border-radius: var(--radius-lg);
  background: var(--slate-50);
  padding: 3rem 2rem;
  text-align: center;
  cursor: pointer;
  transition: all 0.25s ease;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.75rem;
}

.dropzone:hover, .dropzone.dragover {
  border-color: var(--primary);
  background: var(--primary-light);
  transform: translateY(-2px);
}

.dropzone-icon {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  background: #ffffff;
  box-shadow: var(--shadow-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.85rem;
  color: var(--primary);
}

.dropzone-title {
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--slate-800);
}

.dropzone-subtitle {
  font-size: 0.85rem;
  color: var(--slate-500);
  max-width: 480px;
}

.dropzone-tags {
  display: flex;
  gap: 0.5rem;
  margin-top: 0.5rem;
}

.tag-pill {
  font-size: 0.72rem;
  font-weight: 600;
  padding: 0.2rem 0.55rem;
  border-radius: 20px;
  background: #ffffff;
  color: var(--slate-600);
  border: 1px solid var(--slate-200);
}

/* Uploaded Files Queue */
.queue-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 1rem;
  margin-top: 1.25rem;
}

.queue-card {
  background: #ffffff;
  border: 1px solid var(--slate-200);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  transition: all 0.2s ease;
}

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

.queue-thumb {
  height: 140px;
  background: var(--slate-100);
  position: relative;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}

.queue-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.queue-badge {
  position: absolute;
  top: 8px;
  right: 8px;
  font-size: 0.7rem;
  font-weight: 600;
  padding: 0.2rem 0.5rem;
  border-radius: 4px;
  background: rgba(15, 23, 42, 0.75);
  color: #ffffff;
  backdrop-filter: blur(4px);
}

.queue-details {
  padding: 0.85rem;
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  flex: 1;
}

.queue-name {
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--slate-800);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.queue-meta {
  font-size: 0.75rem;
  color: var(--slate-500);
  display: flex;
  justify-content: space-between;
}

/* Progress Tracker Bar (SRS 3.1) */
.progress-container {
  background: #ffffff;
  border-radius: var(--radius-md);
  padding: 1.25rem;
  border: 1px solid var(--slate-200);
  margin-top: 1rem;
  display: none;
}

.progress-header {
  display: flex;
  justify-content: space-between;
  margin-bottom: 0.65rem;
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--slate-800);
}

.progress-bar-bg {
  width: 100%;
  height: 10px;
  background: var(--slate-200);
  border-radius: 20px;
  overflow: hidden;
}

.progress-bar-fill {
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, #2563eb, #10b981);
  transition: width 0.4s ease;
  border-radius: 20px;
}

.stage-indicators {
  display: flex;
  justify-content: space-between;
  margin-top: 0.75rem;
  font-size: 0.75rem;
  color: var(--slate-500);
}

.stage-node.active {
  color: var(--primary);
  font-weight: 600;
}

/* Dual-View Verification Layout (SRS Section 3.5) */
.dual-view-workspace {
  display: grid;
  grid-template-columns: 46% 54%;
  gap: 1.25rem;
  min-height: 680px;
  height: calc(100vh - 230px);
}

@media (max-width: 1100px) {
  .dual-view-workspace {
    grid-template-columns: 1fr;
    height: auto;
  }
}

.pane {
  background: #ffffff;
  border-radius: var(--radius-lg);
  border: 1px solid var(--slate-200);
  box-shadow: var(--shadow-md);
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.pane-header {
  padding: 0.75rem 1rem;
  background: #ffffff;
  border-bottom: 1px solid var(--slate-200);
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 0.5rem;
}

.pane-title {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--slate-800);
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

/* Image Viewer Controls & Canvas */
.viewer-toolbar {
  display: flex;
  align-items: center;
  gap: 0.35rem;
}

.viewer-tool-btn {
  background: var(--slate-100);
  border: 1px solid var(--slate-200);
  border-radius: 4px;
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.85rem;
  color: var(--slate-700);
  cursor: pointer;
  transition: all 0.15s;
}

.viewer-tool-btn:hover {
  background: var(--primary-light);
  color: var(--primary);
  border-color: var(--primary);
}

.image-canvas-wrapper {
  flex: 1;
  background: #24292e;
  position: relative;
  overflow: hidden;
  cursor: grab;
  user-select: none;
}

.image-canvas-wrapper:active {
  cursor: grabbing;
}

.image-canvas {
  position: absolute;
  top: 50%;
  left: 50%;
  transform-origin: center center;
  transition: transform 0.05s ease-out;
}

.image-canvas img {
  display: block;
  max-width: none;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
}

/* Bounding Box Overlay on Image */
.bbox-overlay {
  position: absolute;
  border: 2px solid #3b82f6;
  background: rgba(59, 130, 246, 0.18);
  border-radius: 4px;
  pointer-events: auto;
  cursor: pointer;
  transition: all 0.2s ease;
}

.bbox-overlay:hover, .bbox-overlay.active {
  border-color: #ef4444;
  background: rgba(239, 68, 68, 0.28);
  box-shadow: 0 0 12px rgba(239, 68, 68, 0.6);
  z-index: 10;
}

.bbox-badge {
  position: absolute;
  top: -20px;
  left: 0;
  background: #ef4444;
  color: #ffffff;
  font-size: 0.65rem;
  font-weight: 700;
  padding: 0.1rem 0.35rem;
  border-radius: 3px;
  white-space: nowrap;
}

.page-strip {
  background: var(--slate-900);
  padding: 0.5rem;
  display: flex;
  gap: 0.5rem;
  overflow-x: auto;
  border-top: 1px solid var(--slate-800);
}

.page-strip-thumb {
  width: 56px;
  height: 72px;
  border-radius: 4px;
  overflow: hidden;
  border: 2px solid transparent;
  cursor: pointer;
  opacity: 0.6;
  transition: all 0.2s;
  flex-shrink: 0;
}

.page-strip-thumb.active {
  border-color: var(--primary);
  opacity: 1;
}

.page-strip-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* Data Grid Container */
.grid-controls-bar {
  padding: 0.65rem 1rem;
  background: var(--slate-50);
  border-bottom: 1px solid var(--slate-200);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.grid-filter-group {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.switch-label {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.8rem;
  font-weight: 500;
  cursor: pointer;
  color: var(--slate-700);
}

.grid-scroll-wrapper {
  flex: 1;
  overflow: auto;
}

/* Editable Data Grid Table */
.data-grid {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.82rem;
  white-space: nowrap;
}

.data-grid thead th {
  background: var(--slate-100);
  color: var(--slate-700);
  font-weight: 600;
  padding: 0.6rem 0.75rem;
  text-align: left;
  border-bottom: 2px solid var(--slate-200);
  position: sticky;
  top: 0;
  z-index: 5;
}

.data-grid thead th.text-center {
  text-align: center;
}

.data-grid thead th.text-right {
  text-align: right;
}

.data-grid tbody tr {
  border-bottom: 1px solid var(--slate-200);
  transition: background 0.15s ease;
}

.data-grid tbody tr:hover {
  background: #f1f5f9;
}

.data-grid tbody tr.selected {
  background: #e0f2fe;
}

.data-grid tbody td {
  padding: 0.45rem 0.65rem;
  vertical-align: middle;
}

/* Flagged Cells (SRS Section 3.5: confidence < 85% or failing pattern) */
.data-grid tbody tr.flagged-row {
  background: #fffbeb;
}

.cell-flagged {
  border: 2px solid #f59e0b !important;
  background: #fef3c7 !important;
  border-radius: 4px;
  position: relative;
}

.cell-flagged-severe {
  border: 2px solid #ef4444 !important;
  background: #fee2e2 !important;
  border-radius: 4px;
}

.cell-input {
  width: 100%;
  padding: 0.3rem 0.45rem;
  font-size: 0.82rem;
  font-family: inherit;
  border: 1px solid transparent;
  background: transparent;
  border-radius: 4px;
  outline: none;
  transition: all 0.15s;
}

.cell-input:focus {
  background: #ffffff;
  border-color: var(--primary);
  box-shadow: 0 0 0 2px rgba(37, 99, 235, 0.2);
}

.cell-input.text-right {
  text-align: right;
}

.cell-input.text-center {
  text-align: center;
}

/* Confidence Pills */
.conf-pill {
  font-size: 0.7rem;
  font-weight: 600;
  padding: 0.15rem 0.45rem;
  border-radius: 12px;
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
}

.conf-pill.high {
  background: var(--emerald-light);
  color: var(--emerald);
}

.conf-pill.mid {
  background: var(--amber-light);
  color: var(--amber);
}

.conf-pill.low {
  background: var(--rose-light);
  color: var(--rose);
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0% { opacity: 1; }
  50% { opacity: 0.6; }
  100% { opacity: 1; }
}

.type-pill {
  font-size: 0.72rem;
  font-weight: 700;
  padding: 0.15rem 0.5rem;
  border-radius: 4px;
  text-transform: uppercase;
}

.type-pill.receipt {
  background: #dcfce7;
  color: #15803d;
}

.type-pill.payment {
  background: #fee2e2;
  color: #b91c1c;
}

/* Summary Bar at Bottom of Grid */
.grid-summary-bar {
  padding: 0.75rem 1rem;
  background: var(--slate-900);
  color: #ffffff;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
}

.summary-stat-group {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.summary-stat {
  display: flex;
  flex-direction: column;
}

.stat-label {
  font-size: 0.68rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--slate-400);
}

.stat-value {
  font-size: 1rem;
  font-weight: 700;
}

.stat-value.receipts {
  color: #34d399;
}

.stat-value.payments {
  color: #f87171;
}

.stat-value.balance {
  color: #60a5fa;
}

/* Modal Windows */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background: rgba(15, 23, 42, 0.65);
  backdrop-filter: blur(4px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 100;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s ease;
}

.modal-overlay.active {
  opacity: 1;
  pointer-events: auto;
}

.modal-box {
  background: #ffffff;
  width: 90%;
  max-width: 620px;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-xl);
  overflow: hidden;
  transform: translateY(20px);
  transition: transform 0.25s ease;
  max-height: 90vh;
  display: flex;
  flex-direction: column;
}

.modal-overlay.active .modal-box {
  transform: translateY(0);
}

.modal-header {
  padding: 1rem 1.25rem;
  border-bottom: 1px solid var(--slate-200);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.modal-title {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--slate-900);
}

.modal-body {
  padding: 1.25rem;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.modal-footer {
  padding: 0.85rem 1.25rem;
  border-top: 1px solid var(--slate-200);
  background: var(--slate-50);
  display: flex;
  justify-content: flex-end;
  gap: 0.5rem;
}

/* Notification Toast */
.toast-container {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 200;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.toast {
  background: #ffffff;
  border: 1px solid var(--slate-200);
  padding: 0.85rem 1.25rem;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  display: flex;
  align-items: center;
  gap: 0.75rem;
  min-width: 300px;
  max-width: 420px;
  transform: translateX(100%);
  transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

.toast.show {
  transform: translateX(0);
}

.toast-success {
  border-left: 4px solid var(--emerald);
}

.toast-error {
  border-left: 4px solid var(--rose);
}

.toast-info {
  border-left: 4px solid var(--primary);
}