/* ============================================
   CSS Variables - Editorial Utilitarian Theme
   Faithful recreation of original accounting app
   ============================================ */
:root {
  /* Colors - Warm Light Theme */
  --color-bg: #FAF9F7;
  --color-bg-warm: #F5F3EF;
  --color-bg-panel: #FFFFFF;
  --color-border: #E8E5E0;
  --color-border-light: #F0EDE8;

  --color-text: #1A1A1A;
  --color-text-secondary: #6B6B6B;
  --color-text-muted: #9A9A9A;

  --color-primary: #0f766e;
  --color-primary-hover: #0d9488;
  --color-accent: #0f766e;
  --color-accent-light: #ccfbf1;

  --color-success: #0f766e;
  --color-success-light: #ccfbf1;
  --color-danger: #C53030;
  --color-danger-light: #FED7D7;

  /* Typography */
  --font-serif: 'Instrument Serif', Georgia, serif;
  --font-sans: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: 'JetBrains Mono', 'SF Mono', Consolas, monospace;

  /* Spacing */
  --space-xs: 4px;
  --space-sm: 8px;
  --space-md: 16px;
  --space-lg: 24px;
  --space-xl: 32px;
  --space-2xl: 48px;

  /* Shadows */
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.04);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.08);

  /* Borders */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;

  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-base: 200ms ease;
  --transition-slow: 300ms ease;

  /* Layout */
  --header-height: 64px;
  --sidebar-width: 260px;
  --details-width: 380px;
}

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

html {
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-sans);
  font-size: 14px;
  line-height: 1.5;
  color: var(--color-text);
  background: var(--color-bg);
  overflow: hidden;
}

/* ============================================
   App Layout
   ============================================ */
.app {
  display: flex;
  flex-direction: column;
  height: 100vh;
  overflow: hidden;
}

/* ============================================
   Auth Screen
   ============================================ */
.auth-screen {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  background: var(--color-bg);
}

.auth-container {
  background: var(--color-bg-panel);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 40px;
  width: 100%;
  max-width: 400px;
  box-shadow: var(--shadow-md);
}

.auth-container h1 {
  text-align: center;
  margin-bottom: 30px;
  font-family: var(--font-serif);
  font-size: 2rem;
  font-weight: 400;
  color: var(--color-primary);
}

.auth-container form {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.auth-container input {
  padding: 12px 16px;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  color: var(--color-text);
  font-family: var(--font-sans);
  font-size: 14px;
  transition: all var(--transition-fast);
}

.auth-container input:focus {
  outline: none;
  border-color: var(--color-primary);
  background: var(--color-bg-panel);
  box-shadow: 0 0 0 3px rgba(45, 55, 72, 0.1);
}

.auth-container button {
  padding: 12px;
  background: var(--color-primary);
  border: none;
  border-radius: var(--radius-md);
  color: white;
  font-family: var(--font-sans);
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: background var(--transition-fast);
}

.auth-container button:hover {
  background: var(--color-primary-hover);
}

.auth-toggle {
  text-align: center;
  margin-top: 20px;
  font-size: 14px;
  color: var(--color-text-muted);
}

.auth-toggle a {
  color: var(--color-primary);
  text-decoration: none;
  margin-left: 4px;
  font-weight: 500;
}

.auth-toggle a:hover {
  text-decoration: underline;
}

.auth-forgot {
  text-align: center;
  margin-top: 12px;
  font-size: 13px;
}

.auth-forgot a {
  color: var(--color-text-muted);
  text-decoration: none;
}

.auth-forgot a:hover {
  color: var(--color-primary);
  text-decoration: underline;
}

.auth-back {
  text-align: center;
  margin-top: 20px;
  font-size: 14px;
}

.auth-back a {
  color: var(--color-text-muted);
  text-decoration: none;
}

.auth-back a:hover {
  color: var(--color-primary);
  text-decoration: underline;
}

.auth-subtitle {
  text-align: center;
  color: var(--color-text-muted);
  font-size: 14px;
  margin-bottom: 24px;
}

.auth-success {
  text-align: center;
  padding: 20px 0;
}

.auth-success-icon {
  margin-bottom: 20px;
}

.auth-success-icon svg {
  stroke: var(--color-success);
}

.auth-success h2 {
  font-family: var(--font-sans);
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 12px;
}

.auth-success p {
  color: var(--color-text-muted);
  font-size: 14px;
  line-height: 1.6;
  margin-bottom: 24px;
}

.auth-success .btn {
  width: 100%;
}

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

.auth-error {
  background: var(--color-error-bg);
  color: var(--color-error);
  padding: 12px 16px;
  border-radius: var(--radius-md);
  font-size: 13px;
  margin-bottom: 16px;
  text-align: center;
}

/* ============================================
   Header
   ============================================ */
.header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--header-height);
  padding: 0 var(--space-lg);
  background: var(--color-bg-panel);
  border-bottom: 1px solid var(--color-border);
  flex-shrink: 0;
}

.header-left {
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

.logo {
  font-family: var(--font-serif);
  font-size: 1.75rem;
  font-weight: 400;
  letter-spacing: -0.02em;
  color: var(--color-primary);
}

.quarter-badge {
  display: inline-flex;
  align-items: center;
  padding: var(--space-xs) var(--space-sm);
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 500;
  color: var(--color-accent);
  background: var(--color-accent-light);
  border-radius: var(--radius-sm);
}

.header-actions,
.header-right {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

/* ============================================
   Tab Navigation
   ============================================ */
.tabs {
  display: flex;
  gap: 0;
}

.tab {
  position: relative;
  padding: var(--space-sm) var(--space-md);
  font-family: var(--font-sans);
  font-size: 1.25rem;
  font-weight: 500;
  letter-spacing: -0.01em;
  color: var(--color-text-muted);
  background: transparent;
  border: none;
  cursor: pointer;
  transition: color var(--transition-base);
}

.tab::after {
  content: '';
  position: absolute;
  bottom: -1px;
  left: var(--space-md);
  right: var(--space-md);
  height: 2px;
  background: transparent;
  transition: background var(--transition-base);
}

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

.tab.active {
  color: var(--color-primary);
}

.tab.active::after {
  background: var(--color-primary);
}

/* Tab Content */
.tab-content {
  display: flex;
  flex: 1;
  overflow: hidden;
}

.tab-content[style*="display: none"] {
  display: none !important;
}

/* ============================================
   Main Content - Three Panel Layout
   ============================================ */
.main,
.main-content {
  display: flex;
  flex: 1;
  overflow: hidden;
}

/* ============================================
   Sidebar (File Queue)
   ============================================ */
.sidebar,
.file-queue {
  width: var(--sidebar-width);
  background: var(--color-bg-panel);
  border-right: 1px solid var(--color-border);
  display: flex;
  flex-direction: column;
  flex-shrink: 0;
}

.sidebar-header,
.queue-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-md) var(--space-lg);
  border-bottom: 1px solid var(--color-border-light);
}

.sidebar-header-left {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.sidebar-title,
.queue-header h2 {
  font-family: var(--font-sans);
  font-size: 13px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-text-secondary);
}

.sidebar-count,
.queue-count {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--color-text-muted);
  background: transparent;
  padding: 0;
}

.file-list,
.queue-list {
  flex: 1;
  overflow-y: auto;
  padding: var(--space-sm);
}

.file-item,
.queue-item {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-sm) var(--space-md);
  margin-bottom: 2px;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.file-item:hover,
.queue-item:hover {
  background: var(--color-bg-warm);
}

.file-item.active,
.queue-item.active {
  background: var(--color-primary);
  color: white;
}

.file-item.active .file-name,
.queue-item.active .queue-item-name {
  color: white;
}

.file-item.active .file-meta,
.queue-item.active .queue-item-status {
  color: rgba(255, 255, 255, 0.7);
}

.file-item.processed {
  opacity: 0.7;
}

.file-item.saved {
  opacity: 1;
}

.file-item.saved .file-status {
  color: var(--color-success);
  font-size: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: none;
  width: 14px;
  height: 14px;
}

.file-status {
  width: 8px;
  height: 8px;
  border: 2px solid var(--color-border);
  border-radius: 50%;
  flex-shrink: 0;
}

.file-item.active .file-status {
  border-color: var(--color-accent);
  background: var(--color-accent);
}

.file-info,
.queue-item-info {
  flex: 1;
  min-width: 0;
}

.file-name,
.queue-item-name {
  font-size: 13px;
  font-weight: 500;
  color: var(--color-text);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.file-meta,
.queue-item-status {
  font-size: 11px;
  color: var(--color-text-muted);
  margin-top: 2px;
}

.queue-item-icon {
  width: 32px;
  height: 32px;
  background: var(--color-bg);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text-muted);
}

.empty-state,
.queue-empty {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: var(--space-2xl);
  text-align: center;
  color: var(--color-text-muted);
}

.empty-state svg,
.queue-empty svg {
  margin-bottom: var(--space-md);
  opacity: 0.3;
}

.empty-state p,
.queue-empty p {
  font-size: 14px;
  font-weight: 500;
  color: var(--color-text-secondary);
  margin-bottom: var(--space-xs);
}

.empty-state span,
.queue-empty span {
  font-size: 12px;
}

/* ============================================
   Preview Section
   ============================================ */
.preview-section {
  flex: 1;
  background: var(--color-bg-warm);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-lg);
  min-width: 0;
}

.preview-container,
.receipt-preview {
  width: 100%;
  height: 100%;
  background: var(--color-bg-panel);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}

.preview-placeholder {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  color: var(--color-text-muted);
  text-align: center;
}

.preview-placeholder svg {
  margin-bottom: var(--space-md);
  opacity: 0.2;
}

.preview-placeholder p {
  font-size: 14px;
}

.preview-frame {
  width: 100%;
  height: 100%;
  border: none;
}

.preview-image {
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
}

/* ============================================
   Details Panel
   ============================================ */
.details-panel,
.expense-form-section {
  width: var(--details-width);
  background: var(--color-bg-panel);
  border-left: 1px solid var(--color-border);
  display: flex;
  flex-direction: column;
  flex-shrink: 0;
  overflow: hidden;
  max-height: 100vh;
}

.details-panel .expense-form,
.details-panel #expenseForm {
  flex: 1;
  overflow-y: auto;
  padding-bottom: 280px;
}

.panel-header,
.form-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-md) var(--space-lg);
  border-bottom: 1px solid var(--color-border-light);
}

.panel-header-left {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.panel-title,
.form-header h2 {
  font-family: var(--font-sans);
  font-size: 13px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-text-secondary);
}

.expense-id,
.expense-id-preview {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--color-text-muted);
}

/* Extract Button - AI Purple Theme */
.btn-extract {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 12px;
  font-family: var(--font-sans);
  font-size: 12px;
  font-weight: 500;
  color: #7C3AED;
  background: linear-gradient(135deg, #EDE9FE 0%, #DDD6FE 100%);
  border: 1px solid #C4B5FD;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.btn-extract:hover {
  background: linear-gradient(135deg, #DDD6FE 0%, #C4B5FD 100%);
  border-color: #A78BFA;
}

.btn-extract:active {
  transform: scale(0.98);
}

.btn-extract svg {
  stroke: #7C3AED;
}

.btn-extract.btn-small {
  padding: 4px 8px;
  font-size: 11px;
}

.btn-extract.btn-small svg {
  width: 12px;
  height: 12px;
}

/* ============================================
   Form Styles
   ============================================ */
.expense-form {
  flex: 1;
  overflow-y: auto;
  padding: var(--space-lg);
  padding-bottom: 200px;
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
}

.form-group-half {
  flex: 1;
}

.form-group-third {
  flex: 1;
  min-width: 0;
}

.form-row {
  display: flex;
  gap: var(--space-md);
}

.form-label {
  font-size: 12px;
  font-weight: 600;
  color: var(--color-text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

.label-hint {
  font-weight: 400;
  text-transform: none;
  color: var(--color-text-muted);
  font-size: 11px;
}

.suggested-match-indicator {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  margin-left: 8px;
  padding: 2px 8px;
  background: var(--color-success-light);
  color: var(--color-success);
  font-size: 11px;
  font-weight: 500;
  text-transform: none;
  letter-spacing: 0;
  border-radius: var(--radius-sm);
}

.suggested-match-indicator svg {
  stroke: var(--color-success);
}

/* Searchable Dropdown */
.searchable-dropdown {
  position: relative;
  width: 100%;
}

.searchable-dropdown-trigger {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  padding: 10px 12px;
  background: var(--color-bg-panel);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-size: 14px;
  font-family: var(--font-sans);
  color: var(--color-text);
  cursor: pointer;
  transition: border-color 0.15s ease;
}

.searchable-dropdown-trigger:hover {
  border-color: var(--color-text-muted);
}

.searchable-dropdown.open .searchable-dropdown-trigger {
  border-color: var(--color-primary);
}

.searchable-dropdown-value {
  flex: 1;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.searchable-dropdown-value.placeholder {
  color: var(--color-text-muted);
}

.searchable-dropdown-arrow {
  flex-shrink: 0;
  margin-left: 8px;
  stroke: var(--color-text-muted);
  transition: transform 0.15s ease;
}

.searchable-dropdown.open .searchable-dropdown-arrow {
  transform: rotate(180deg);
}

.searchable-dropdown-menu {
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  margin-top: 4px;
  background: var(--color-bg-panel);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-lg);
  z-index: 1000;
  max-height: 300px;
  display: flex;
  flex-direction: column;
}

.searchable-dropdown-search {
  width: 100%;
  padding: 10px 12px;
  border: none;
  border-bottom: 1px solid var(--color-border);
  font-size: 14px;
  font-family: var(--font-sans);
  outline: none;
  background: transparent;
}

.searchable-dropdown-search::placeholder {
  color: var(--color-text-muted);
}

.searchable-dropdown-options {
  overflow-y: auto;
  max-height: 250px;
}

.searchable-dropdown-option {
  padding: 10px 12px;
  font-size: 13px;
  cursor: pointer;
  transition: background-color 0.1s ease;
}

.searchable-dropdown-option:hover {
  background: var(--color-bg-warm);
}

.searchable-dropdown-option.selected {
  background: var(--color-accent-light);
}

.searchable-dropdown-option.disabled {
  color: var(--color-text-muted);
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  cursor: default;
  padding: 8px 12px;
}

.searchable-dropdown-option.disabled:hover {
  background: transparent;
}

.searchable-dropdown-option.separator {
  padding: 4px 12px;
  border-top: 1px solid var(--color-border);
  cursor: default;
}

.searchable-dropdown-option.separator:hover {
  background: transparent;
}

.searchable-dropdown-option .star {
  color: var(--color-accent);
}

.searchable-dropdown-no-results {
  padding: 12px;
  text-align: center;
  color: var(--color-text-muted);
  font-size: 13px;
}

.checkbox-label {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 8px;
  font-size: 13px;
  color: var(--color-text-muted);
  cursor: pointer;
}

.checkbox-label input[type="checkbox"] {
  width: 16px;
  height: 16px;
  cursor: pointer;
}

.btn-disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.form-input,
.form-select {
  width: 100%;
  height: 40px;
  padding: 0 var(--space-sm);
  font-family: var(--font-sans);
  font-size: 14px;
  color: var(--color-text);
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
}

.form-input:focus,
.form-select:focus {
  outline: none;
  border-color: var(--color-primary);
  background: var(--color-bg-panel);
  box-shadow: 0 0 0 3px rgba(45, 55, 72, 0.1);
}

.form-input::placeholder {
  color: var(--color-text-muted);
}

.form-input:disabled,
.form-select:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.form-textarea {
  height: auto;
  min-height: 80px;
  padding: var(--space-sm) var(--space-md);
  resize: vertical;
  font-family: var(--font-sans);
  font-size: 13px;
  line-height: 1.6;
}

.input-with-prefix {
  position: relative;
  display: flex;
  align-items: center;
}

.input-prefix {
  position: absolute;
  left: var(--space-sm);
  font-family: var(--font-mono);
  font-size: 14px;
  color: var(--color-text-muted);
  pointer-events: none;
}

.input-with-prefix .form-input {
  padding-left: var(--space-lg);
  font-family: var(--font-mono);
}

.form-divider {
  border: none;
  border-top: 1px solid var(--color-border-light);
  margin: var(--space-sm) 0;
}

.gross-amount,
.gross-display {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-sm) var(--space-md);
  background: var(--color-bg-warm);
  border-radius: var(--radius-sm);
}

.gross-label {
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  color: var(--color-text-secondary);
}

.gross-value {
  font-family: var(--font-mono);
  font-size: 16px;
  font-weight: 600;
  color: var(--color-text);
}

/* ============================================
   Buttons
   ============================================ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  height: 40px;
  padding: 0 var(--space-md);
  font-family: var(--font-sans);
  font-size: 13px;
  font-weight: 600;
  border: none;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all var(--transition-fast);
  white-space: nowrap;
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

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

.btn-primary:hover:not(:disabled) {
  background: var(--color-primary-hover);
}

.btn-secondary {
  background: var(--color-bg);
  color: var(--color-text);
  border: 1px solid var(--color-border);
}

.btn-secondary:hover:not(:disabled) {
  background: var(--color-bg-warm);
  border-color: var(--color-text-muted);
}

.btn-ghost {
  background: transparent;
  color: var(--color-text-secondary);
}

.btn-ghost:hover:not(:disabled) {
  background: var(--color-bg);
  color: var(--color-text);
}

.btn-danger {
  background: transparent;
  color: var(--color-danger);
  border: 1px solid var(--color-danger);
}

.btn-danger:hover:not(:disabled) {
  background: var(--color-danger);
  color: white;
}

.form-actions {
  display: flex;
  gap: var(--space-sm);
  padding: var(--space-md) var(--space-lg);
  border-top: 1px solid var(--color-border-light);
  background: var(--color-bg-panel);
  position: fixed;
  bottom: 0;
  right: 0;
  width: var(--details-width);
  box-sizing: border-box;
}


.form-actions .btn-danger {
  flex: 0;
}

.form-actions .btn-primary {
  flex: 1;
}

.badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 18px;
  height: 18px;
  padding: 0 5px;
  font-size: 11px;
  font-weight: 600;
  background: var(--color-accent);
  color: white;
  border-radius: 9px;
}

/* Upload Button */
.upload-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  background: var(--color-primary);
  color: white;
  border-radius: var(--radius-md);
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  transition: background var(--transition-base);
}

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

/* ============================================
   Modal
   ============================================ */
.modal-overlay,
.modal {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  padding: var(--space-lg);
  animation: fadeIn var(--transition-fast);
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

.modal-content {
  width: 100%;
  max-width: 640px;
  max-height: 90vh;
  background: var(--color-bg-panel);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  animation: slideUp var(--transition-base);
}

.modal-small .modal-content {
  max-width: 480px;
}

.modal-large .modal-content {
  max-width: 700px;
}

.email-body {
  font-family: var(--font-mono);
  font-size: 13px;
  line-height: 1.6;
  resize: vertical;
  min-height: 200px;
}

.email-attachment {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-sm) var(--space-md);
  background: var(--color-bg-warm);
  border-radius: var(--radius-sm);
  font-size: 13px;
  color: var(--color-text-secondary);
}

.email-attachment svg {
  color: var(--color-text-muted);
}

.modal-footer {
  display: flex;
  justify-content: flex-end;
  gap: var(--space-sm);
  padding: var(--space-lg);
  border-top: 1px solid var(--color-border);
}

@keyframes slideUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

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

.modal-title,
.modal-header h2 {
  font-family: var(--font-sans);
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--color-text);
  letter-spacing: -0.02em;
}

.modal-close {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  background: transparent;
  border: none;
  border-radius: var(--radius-sm);
  color: var(--color-text-muted);
  cursor: pointer;
  transition: all var(--transition-fast);
  font-size: 24px;
  line-height: 1;
}

.modal-close:hover {
  background: var(--color-bg);
  color: var(--color-text);
}

.modal-body {
  flex: 1;
  padding: var(--space-lg);
  overflow-y: auto;
}

/* ============================================
   VAT Submission - Tax for All Form
   ============================================ */
.date-range-picker {
  display: flex;
  gap: var(--space-md);
  align-items: flex-end;
  margin-bottom: var(--space-lg);
  padding-bottom: var(--space-lg);
  border-bottom: 1px solid var(--color-border-light);
}

.date-range-picker .form-group {
  flex: 1;
}

/* Quarter Selector */
.quarter-selector {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-md);
  margin-bottom: var(--space-lg);
  padding-bottom: var(--space-lg);
  border-bottom: 1px solid var(--color-border);
}

.quarter-buttons {
  display: flex;
  gap: 4px;
}

.quarter-btn {
  padding: var(--space-sm) var(--space-md);
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-size: 13px;
  font-weight: 500;
  color: var(--color-text-secondary);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.quarter-btn:hover {
  background: white;
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.quarter-btn.active {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: white;
}

.quarter-year-select {
  width: auto;
  min-width: 90px;
  padding: var(--space-xs) var(--space-sm);
  font-size: 13px;
  font-weight: 500;
}

.vat-summary {
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
}

/* Tax for All Form Styles */
.tfa-form {
  background: var(--color-bg);
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--color-border);
}

.tfa-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--space-md) var(--space-lg);
  background: var(--color-primary);
  color: white;
}

.tfa-title {
  font-family: var(--font-sans);
  font-size: 14px;
  font-weight: 600;
}

.tfa-period {
  font-family: var(--font-mono);
  font-size: 13px;
  opacity: 0.8;
}

.tfa-row {
  display: grid;
  grid-template-columns: 48px 1fr auto 36px;
  align-items: center;
  gap: var(--space-md);
  padding: var(--space-md) var(--space-lg);
  border-bottom: 1px solid var(--color-border-light);
  transition: background var(--transition-fast);
}

.tfa-row:last-child {
  border-bottom: none;
}

.tfa-row:hover {
  background: var(--color-bg-warm);
}

.tfa-box {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 28px;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 600;
  color: var(--color-primary);
  background: white;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
}

.tfa-label {
  font-size: 13px;
  color: var(--color-text-secondary);
  line-height: 1.4;
}

.tfa-value {
  font-family: var(--font-mono);
  font-size: 15px;
  font-weight: 600;
  color: var(--color-text);
  text-align: right;
  min-width: 100px;
}

.tfa-copy {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  background: transparent;
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  color: var(--color-text-muted);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.tfa-copy:hover {
  background: white;
  border-color: var(--color-border);
  color: var(--color-primary);
}

.tfa-copy:active {
  transform: scale(0.95);
}

.tfa-copy.copied {
  color: var(--color-success);
  background: var(--color-success-light);
  border-color: var(--color-success);
}

/* Summary Stats */
.summary-stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-md);
}

.stat-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: var(--space-lg);
  background: var(--color-bg);
  border-radius: var(--radius-md);
  text-align: center;
}

.stat-value {
  font-family: var(--font-mono);
  font-size: 1.75rem;
  font-weight: 600;
  color: var(--color-text);
}

.stat-label {
  font-size: 12px;
  font-weight: 500;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-top: var(--space-xs);
}

/* VAT Position States */
.stat-card.vat-due {
  background: var(--color-danger-light);
}

.stat-card.vat-due .stat-value {
  color: var(--color-danger);
}

.stat-card.vat-reclaimable {
  background: var(--color-success-light);
}

.stat-card.vat-reclaimable .stat-value {
  color: var(--color-success);
}

/* Category Breakdown Section */
.category-section {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.category-section-title {
  margin: 0;
  padding: var(--space-md) var(--space-lg);
  font-size: 13px;
  font-weight: 600;
  color: var(--color-text-secondary);
  background: var(--color-bg);
}

.category-breakdown {
  display: flex;
  flex-direction: column;
  padding: var(--space-sm) var(--space-lg) var(--space-lg);
  background: white;
}

.category-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--space-sm) 0;
  font-size: 13px;
  border-bottom: 1px solid var(--color-border-light);
}

.category-row:last-child {
  border-bottom: none;
}

.category-name {
  color: var(--color-text-secondary);
}

.category-value {
  font-family: var(--font-mono);
  font-weight: 500;
  color: var(--color-text);
}

/* VAT Submit Section */
.vat-submit-footer {
  padding: var(--space-md) var(--space-lg);
  border-top: 1px solid var(--color-border);
  background: var(--color-bg-panel);
  text-align: center;
  flex-shrink: 0;
}

.vat-submit-footer .btn {
  min-width: 220px;
}

/* ============================================
   VAT Return Report Modal
   ============================================ */
.modal-large {
  max-width: 900px;
  max-height: 90vh;
}

.vat-report-body {
  max-height: 70vh;
  overflow-y: auto;
}

.vat-report-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: var(--space-lg);
  padding-bottom: var(--space-lg);
  border-bottom: 1px solid var(--color-border);
}

.report-period h3 {
  margin: 0 0 var(--space-xs) 0;
  font-size: 1.25rem;
  color: var(--color-text);
}

.report-period p {
  margin: 0;
  font-size: 13px;
  color: var(--color-text-muted);
}

.status-badge {
  display: inline-block;
  padding: var(--space-xs) var(--space-sm);
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  border-radius: var(--radius-sm);
}

.status-badge.status-draft {
  background: var(--color-warning-light);
  color: var(--color-warning-dark);
}

.status-badge.status-submitted {
  background: var(--color-success-light);
  color: var(--color-success);
}

/* Report Boxes */
.vat-report-summary h4 {
  margin: 0 0 var(--space-md) 0;
  font-size: 14px;
  font-weight: 600;
  color: var(--color-text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.report-boxes {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.report-box {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.box-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--space-md) var(--space-lg);
  background: white;
  border-bottom: 1px solid var(--color-border-light);
}

.box-number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 56px;
  height: 28px;
  padding: 0 var(--space-sm);
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  color: white;
  background: var(--color-primary);
  border-radius: var(--radius-sm);
}

.box-value {
  font-family: var(--font-mono);
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--color-text);
}

.box-description {
  padding: var(--space-sm) var(--space-lg);
  font-size: 13px;
  color: var(--color-text-secondary);
  background: white;
}

.box-calculation {
  padding: var(--space-xs) var(--space-lg) var(--space-sm);
  font-size: 11px;
  font-style: italic;
  color: var(--color-text-muted);
  background: white;
}

.box-expenses {
  max-height: 200px;
  overflow-y: auto;
  background: var(--color-bg);
}

.box-expense-item {
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding: var(--space-sm) var(--space-lg);
  font-size: 12px;
  border-bottom: 1px solid var(--color-border-light);
}

.box-expense-item:last-child {
  border-bottom: none;
}

.box-expense-main {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.box-expense-meta {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  padding-left: var(--space-xs);
}

.expense-num {
  font-family: var(--font-mono);
  color: var(--color-primary);
  flex-shrink: 0;
}

.expense-supplier {
  color: var(--color-text);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  font-weight: 500;
}

.box-expense-desc {
  font-size: 12px;
  color: var(--color-text-muted);
  padding-left: var(--space-xs);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.expense-category {
  font-size: 11px;
  color: var(--color-text-muted);
  background: var(--color-bg-warm);
  padding: 1px 6px;
  border-radius: 3px;
}

.expense-treatment {
  font-size: 10px;
  font-weight: 600;
  color: var(--color-accent);
  text-transform: uppercase;
  letter-spacing: 0.3px;
}

.expense-amount {
  font-family: var(--font-mono);
  font-weight: 500;
  color: var(--color-text);
  text-align: right;
  margin-left: auto;
}

.box-no-expenses {
  padding: var(--space-md) var(--space-lg);
  font-size: 12px;
  color: var(--color-text-muted);
  text-align: center;
  font-style: italic;
}

/* Calculated VAT indicator */
.calculated-vat {
  color: var(--color-accent);
}

.vat-calc-label {
  font-size: 9px;
  font-weight: 600;
  color: var(--color-accent);
  text-transform: uppercase;
  margin-left: 2px;
}

.description-cell {
  max-width: 150px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* All Expenses Table */
.all-expenses-details {
  margin-top: var(--space-xl);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.all-expenses-summary {
  display: flex;
  align-items: center;
  padding: var(--space-md) var(--space-lg);
  font-size: 14px;
  font-weight: 600;
  color: var(--color-text);
  background: var(--color-bg);
  cursor: pointer;
  user-select: none;
}

.all-expenses-summary:hover {
  background: var(--color-bg-warm);
}

.all-expenses-table {
  background: white;
  overflow-x: auto;
}

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

.all-expenses-table th {
  padding: var(--space-sm) var(--space-md);
  text-align: left;
  font-weight: 600;
  color: var(--color-text-secondary);
  background: var(--color-bg);
  border-bottom: 1px solid var(--color-border);
  white-space: nowrap;
}

.all-expenses-table td {
  padding: var(--space-sm) var(--space-md);
  color: var(--color-text);
  border-bottom: 1px solid var(--color-border-light);
  vertical-align: middle;
}

.all-expenses-table tr:last-child td {
  border-bottom: none;
}

.all-expenses-table tr:hover {
  background: var(--color-bg-warm);
}

.all-expenses-table .expense-number-cell {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--color-primary);
  white-space: nowrap;
}

.all-expenses-table .amount-cell {
  font-family: var(--font-mono);
  text-align: right;
  white-space: nowrap;
}

.all-expenses-table .boxes-cell {
  display: flex;
  gap: 4px;
  flex-wrap: wrap;
}

.box-tag {
  display: inline-block;
  padding: 2px 6px;
  font-size: 10px;
  font-weight: 600;
  font-family: var(--font-mono);
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: 3px;
  color: var(--color-text-secondary);
}

/* ============================================
   Sync Modal
   ============================================ */
.sync-info {
  text-align: center;
  margin-bottom: var(--space-lg);
}

.sync-info p {
  color: var(--color-text-secondary);
  margin-bottom: var(--space-sm);
}

.label-badge {
  display: inline-block;
  padding: var(--space-xs) var(--space-md);
  font-family: var(--font-mono);
  font-size: 13px;
  background: var(--color-bg);
  border-radius: var(--radius-sm);
  color: var(--color-text);
}

.sync-note {
  font-size: 12px;
  color: var(--color-text-muted);
  margin-top: var(--space-md);
}

.sync-preview {
  max-height: 200px;
  overflow-y: auto;
}

.sync-email-item {
  display: flex;
  flex-direction: column;
  padding: var(--space-sm);
  background: var(--color-bg);
  border-radius: var(--radius-sm);
  margin-bottom: var(--space-xs);
}

.sync-email-subject {
  font-weight: 500;
  font-size: 13px;
  margin-bottom: var(--space-xs);
}

.sync-email-meta {
  font-size: 11px;
  color: var(--color-text-muted);
}

.sync-result {
  padding: var(--space-md);
  background: var(--color-success-light);
  border-radius: var(--radius-md);
  text-align: center;
}

.sync-result.error {
  background: var(--color-danger-light);
}

.sync-result-count {
  font-family: var(--font-mono);
  font-size: 2rem;
  font-weight: 600;
  color: var(--color-success);
}

.sync-result.error .sync-result-count {
  color: var(--color-danger);
}

.sync-result-label {
  font-size: 13px;
  color: var(--color-text-secondary);
}

/* ============================================
   Toast Notification
   ============================================ */
.toast-container {
  position: fixed;
  bottom: var(--space-lg);
  right: var(--space-lg);
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  z-index: 2000;
}

.toast {
  position: fixed;
  bottom: var(--space-lg);
  left: 50%;
  transform: translateX(-50%) translateY(100px);
  padding: var(--space-sm) var(--space-lg);
  background: var(--color-primary);
  color: white;
  font-size: 13px;
  font-weight: 500;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  opacity: 0;
  transition: all var(--transition-base);
  z-index: 2000;
}

.toast.show {
  transform: translateX(-50%) translateY(0);
  opacity: 1;
}

.toast.success {
  background: var(--color-success);
}

.toast.error {
  background: var(--color-danger);
}

/* ============================================
   Loading Overlay
   ============================================ */
.loading-overlay {
  position: fixed;
  inset: 0;
  background: rgba(250, 249, 247, 0.9);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-md);
  z-index: 3000;
}

.spinner,
.loading-spinner {
  width: 32px;
  height: 32px;
  border: 3px solid var(--color-border);
  border-top-color: var(--color-primary);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

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

.loading-text {
  font-size: 13px;
  color: var(--color-text-secondary);
}

/* ============================================
   Scrollbar Styling
   ============================================ */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

::-webkit-scrollbar-track {
  background: transparent;
}

::-webkit-scrollbar-thumb {
  background: var(--color-border);
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--color-text-muted);
}

/* ============================================
   Invoice Styles
   ============================================ */

/* Invoice Totals */
.invoice-totals {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-md);
  margin-top: var(--space-md);
  margin-bottom: var(--space-md);
}

.total-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 6px 0;
  font-size: 13px;
  color: var(--color-text-secondary);
}

.total-row span:first-child {
  font-family: var(--font-sans);
  font-weight: 500;
}

.total-row span:last-child {
  font-family: var(--font-mono);
  font-weight: 500;
  font-size: 14px;
  color: var(--color-text);
}

.total-row.total-gross {
  margin-top: var(--space-sm);
  padding-top: var(--space-sm);
  border-top: 1px solid var(--color-border);
  font-weight: 600;
}

.total-row.total-gross span:first-child {
  font-family: var(--font-sans);
  font-weight: 600;
  font-size: 14px;
  color: var(--color-text);
  letter-spacing: -0.01em;
}

.total-row.total-gross span:last-child {
  font-size: 18px;
  font-weight: 600;
  color: var(--color-primary);
  letter-spacing: -0.02em;
}

/* Status Badges */
.status-badges {
  display: flex;
  gap: var(--space-xs);
  padding: var(--space-xs);
  background: var(--color-bg);
  border-radius: var(--radius-md);
}

.status-badge {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 14px;
  font-family: var(--font-sans);
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  border-radius: 6px;
  cursor: pointer;
  transition: all var(--transition-base);
  border: none;
  background: transparent;
  color: var(--color-text-muted);
}

.status-badge::before {
  content: '';
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: currentColor;
  opacity: 0.5;
  transition: all var(--transition-base);
}

.status-badge:hover {
  color: var(--color-text-secondary);
}

.status-badge:hover::before {
  opacity: 0.7;
  transform: scale(1.2);
}

.status-badge.active {
  background: var(--color-bg-panel);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.08), 0 1px 2px rgba(0, 0, 0, 0.04);
}

.status-badge.active::before {
  opacity: 1;
  transform: scale(1);
}

/* Draft status */
.status-draft {
  color: #78716C;
}

.status-draft.active {
  color: #57534E;
}

.status-draft::before {
  background: #A8A29E;
}

.status-draft.active::before {
  background: #78716C;
}

/* Sent status */
.status-sent {
  color: #6366F1;
}

.status-sent.active {
  color: #4F46E5;
  background: linear-gradient(135deg, #EEF2FF 0%, #E0E7FF 100%);
}

.status-sent::before {
  background: #818CF8;
}

.status-sent.active::before {
  background: #6366F1;
  box-shadow: 0 0 0 2px rgba(99, 102, 241, 0.2);
}

/* Paid status */
.status-paid {
  color: var(--color-success);
}

.status-paid.active {
  color: #166534;
  background: linear-gradient(135deg, #ECFDF5 0%, #D1FAE5 100%);
}

.status-paid::before {
  background: #34D399;
}

.status-paid.active::before {
  background: var(--color-success);
  box-shadow: 0 0 0 2px rgba(104, 166, 125, 0.2);
}

/* Invoice List Items */
.invoice-item {
  position: relative;
  display: flex;
  align-items: flex-start;
  gap: var(--space-md);
  padding: var(--space-md);
  margin-bottom: var(--space-xs);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition-fast);
  border: 1px solid transparent;
}

.invoice-item::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 3px;
  height: 0;
  background: var(--color-primary);
  border-radius: 0 2px 2px 0;
  transition: height var(--transition-fast);
}

.invoice-item:hover {
  background: var(--color-bg-warm);
  border-color: var(--color-border-light);
}

.invoice-item:hover::before {
  height: 24px;
}

.invoice-item.active {
  background: var(--color-primary);
  border-color: var(--color-primary-hover);
  box-shadow: 0 2px 8px rgba(45, 55, 72, 0.15);
}

.invoice-item.active::before {
  display: none;
}

.invoice-status-indicator {
  width: 32px;
  height: 32px;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  background: var(--color-bg);
  transition: all var(--transition-fast);
}

.invoice-status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  flex-shrink: 0;
  transition: all var(--transition-fast);
}

.invoice-status-dot.draft {
  background: #A8A29E;
}

.invoice-status-dot.sent {
  background: #6366F1;
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.15);
}

.invoice-status-dot.paid {
  background: var(--color-success);
  box-shadow: 0 0 0 3px rgba(104, 166, 125, 0.15);
}

.invoice-item.active .invoice-status-indicator {
  background: rgba(255, 255, 255, 0.15);
}

.invoice-item.active .invoice-status-dot {
  background: white;
  box-shadow: none;
}

.invoice-info {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.invoice-customer {
  font-family: var(--font-sans);
  font-size: 13px;
  font-weight: 600;
  color: var(--color-text);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.invoice-item.active .invoice-customer {
  color: white;
}

.invoice-number {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  color: var(--color-text-muted);
  letter-spacing: 0.02em;
}

.invoice-item.active .invoice-number {
  color: rgba(255, 255, 255, 0.7);
}

.invoice-meta {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-size: 11px;
  color: var(--color-text-muted);
  margin-top: 2px;
}

.invoice-item.active .invoice-meta {
  color: rgba(255, 255, 255, 0.6);
}

.invoice-amount {
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 600;
  color: var(--color-text);
  white-space: nowrap;
  padding: 4px 10px;
  background: var(--color-bg);
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
}

.invoice-item:hover .invoice-amount {
  background: var(--color-bg-panel);
}

.invoice-item.active .invoice-amount {
  background: rgba(255, 255, 255, 0.2);
  color: white;
}

/* Invoice Preview */
#invoicePreviewContainer {
  background: linear-gradient(135deg, #FFFFFF 0%, #FDFCFB 100%);
  box-shadow:
    0 1px 1px rgba(0, 0, 0, 0.02),
    0 2px 4px rgba(0, 0, 0, 0.02),
    0 4px 8px rgba(0, 0, 0, 0.03),
    0 8px 16px rgba(0, 0, 0, 0.03),
    0 16px 32px rgba(0, 0, 0, 0.02);
}

/* Invoice form refinements */
#invoiceForm .form-label {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
}

#invoiceForm .form-divider {
  margin: var(--space-md) 0;
  border-color: var(--color-border-light);
}

/* Send button - Call to action */
#sendInvoiceBtn {
  background: linear-gradient(135deg, #4F46E5 0%, #6366F1 100%);
  border: none;
  box-shadow: 0 1px 2px rgba(79, 70, 229, 0.2);
}

#sendInvoiceBtn:hover:not(:disabled) {
  background: linear-gradient(135deg, #4338CA 0%, #4F46E5 100%);
  box-shadow: 0 2px 4px rgba(79, 70, 229, 0.3);
  transform: translateY(-1px);
}

#sendInvoiceBtn:active:not(:disabled) {
  transform: translateY(0);
}

/* VAT Treatment Info Box */
.vat-treatment-info,
.vat-treatment-display {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-sm) var(--space-md);
  background: var(--color-bg);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-sm);
  font-size: 13px;
}

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

.vat-treatment-value {
  color: var(--color-text);
  font-weight: 600;
}

.vat-treatment-info.reverse-charge {
  background: linear-gradient(135deg, #EEF2FF 0%, #E0E7FF 100%);
  border-color: #C7D2FE;
}

.vat-treatment-info.reverse-charge .vat-treatment-value {
  color: #4F46E5;
}

.vat-treatment-info.vat-applied {
  background: linear-gradient(135deg, #FEF3C7 0%, #FDE68A 100%);
  border-color: #FCD34D;
}

.vat-treatment-info.vat-applied .vat-treatment-value {
  color: #B45309;
}

.vat-treatment-info.zero-rated {
  background: linear-gradient(135deg, #ECFDF5 0%, #D1FAE5 100%);
  border-color: #A7F3D0;
}

.vat-treatment-info.zero-rated .vat-treatment-value {
  color: #047857;
}

/* Settings */
.settings-section {
  margin-bottom: 24px;
}

.settings-section h3 {
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 12px;
  color: var(--color-text-secondary);
}

.settings-hint {
  font-size: 12px;
  color: var(--color-text-muted);
  margin-bottom: var(--space-md);
}

/* VAT Periods Config */
.vat-periods-config {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.vat-period-row {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.vat-period-label {
  font-size: 13px;
  font-weight: 500;
  color: var(--color-text-secondary);
  min-width: 60px;
}

.vat-period-to {
  font-size: 12px;
  color: var(--color-text-muted);
}

.vat-month-select {
  width: 120px;
  padding: var(--space-xs) var(--space-sm);
  font-size: 13px;
}

.tags-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 12px;
}

.tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 10px;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-size: 13px;
}

.tag-remove {
  background: none;
  border: none;
  color: var(--color-text-muted);
  cursor: pointer;
  padding: 0;
  font-size: 16px;
  line-height: 1;
}

.tag-remove:hover {
  color: var(--color-danger);
}

/* Gmail Settings */
.gmail-status {
  padding: 16px;
  background: var(--color-bg);
  border-radius: var(--radius-md);
  margin-bottom: 16px;
}

.gmail-status-loading {
  color: var(--color-text-muted);
  font-size: 13px;
}

.gmail-status-connected {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.gmail-status-info {
  display: flex;
  align-items: center;
  gap: 10px;
}

.gmail-status-icon {
  width: 32px;
  height: 32px;
  background: var(--color-success-light);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-success);
}

.gmail-status-text {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.gmail-status-email {
  font-weight: 500;
  color: var(--color-text);
  font-size: 14px;
}

.gmail-status-label {
  font-size: 12px;
  color: var(--color-text-muted);
}

.gmail-status-disconnected {
  display: flex;
  align-items: center;
  gap: 12px;
}

.gmail-status-disconnected .gmail-status-icon {
  background: var(--color-bg-warm);
  color: var(--color-text-muted);
}

.btn-disconnect {
  padding: 6px 12px;
  font-size: 12px;
  background: transparent;
  border: 1px solid var(--color-border);
  color: var(--color-text-secondary);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all var(--transition-fast);
}

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

.btn-connect-gmail {
  padding: 8px 16px;
  font-size: 13px;
  background: var(--color-primary);
  border: none;
  color: white;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all var(--transition-fast);
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.btn-connect-gmail:hover {
  background: var(--color-primary-hover);
}

.form-hint {
  display: block;
  font-size: 12px;
  color: var(--color-text-muted);
  margin-top: 6px;
}

/* ============================================
   Responsive Adjustments
   ============================================ */
@media (max-width: 1200px) {
  :root {
    --sidebar-width: 220px;
    --details-width: 320px;
  }
}

@media (max-width: 960px) {
  .main,
  .main-content {
    flex-direction: column;
  }

  .sidebar,
  .file-queue {
    width: 100%;
    max-height: 200px;
    border-right: none;
    border-bottom: 1px solid var(--color-border);
  }

  .file-list,
  .queue-list {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-xs);
    padding: var(--space-sm);
  }

  .file-item,
  .queue-item {
    flex: 0 0 auto;
    max-width: 200px;
  }

  .preview-section {
    flex: 1;
    min-height: 300px;
  }

  .details-panel,
  .expense-form-section {
    width: 100%;
    max-height: 50vh;
    border-left: none;
    border-top: 1px solid var(--color-border);
  }

  .form-actions {
    position: static;
    width: 100%;
  }
}

/* ============================================
   Filter Sidebar - New Expense List Design
   ============================================ */
.filter-sidebar {
  width: 240px;
  background: var(--color-bg-panel);
  border-right: 1px solid var(--color-border);
  display: flex;
  flex-direction: column;
  flex-shrink: 0;
  height: 100%;
  max-height: 100vh;
}

.filter-sidebar-inner {
  flex: 1;
  overflow-y: auto;
  padding: var(--space-lg) var(--space-md);
}

.filter-group {
  margin-bottom: var(--space-xl);
}

.filter-group:last-child {
  margin-bottom: 0;
}

.filter-group-label {
  font-family: var(--font-sans);
  font-size: 10px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-text-muted);
  margin-bottom: var(--space-sm);
  padding-left: 2px;
}

.filter-options {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.filter-options--stacked {
  flex-direction: row;
  flex-wrap: wrap;
  gap: var(--space-xs);
  margin-bottom: var(--space-sm);
}

.filter-options--stacked .filter-option {
  flex: 1;
  min-width: 0;
  padding: var(--space-xs) var(--space-sm);
  justify-content: center;
}

.filter-options--stacked .filter-option-text {
  font-size: 11px;
}

.filter-option {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-sm) var(--space-sm);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition-fast);
  position: relative;
}

.filter-option:hover {
  background: var(--color-bg-warm);
}

.filter-option input[type="radio"] {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}

.filter-option-radio {
  width: 16px;
  height: 16px;
  border: 2px solid var(--color-border);
  border-radius: 50%;
  flex-shrink: 0;
  transition: all var(--transition-fast);
  position: relative;
}

.filter-option-radio::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%) scale(0);
  width: 8px;
  height: 8px;
  background: var(--color-primary);
  border-radius: 50%;
  transition: transform var(--transition-fast);
}

.filter-option input[type="radio"]:checked + .filter-option-radio {
  border-color: var(--color-primary);
}

.filter-option input[type="radio"]:checked + .filter-option-radio::after {
  transform: translate(-50%, -50%) scale(1);
}

.filter-option input[type="radio"]:checked ~ .filter-option-text {
  font-weight: 600;
  color: var(--color-text);
}

.filter-option-text {
  font-size: 13px;
  color: var(--color-text-secondary);
  flex: 1;
}

.filter-option-count {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--color-text-muted);
  background: var(--color-bg);
  padding: 2px 6px;
  border-radius: var(--radius-sm);
}

.filter-option-count--warning {
  color: var(--color-danger);
  background: var(--color-danger-light);
}

/* Filter Select */
.filter-select {
  width: 100%;
  padding: var(--space-sm) var(--space-md);
  font-family: var(--font-sans);
  font-size: 13px;
  color: var(--color-text);
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  cursor: pointer;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%236B6B6B' stroke-width='2'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 8px center;
  padding-right: 32px;
  transition: all var(--transition-fast);
}

.filter-select:hover {
  border-color: var(--color-text-muted);
}

.filter-select:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(45, 55, 72, 0.1);
}

/* Filter Checkbox */
.filter-checkbox {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-sm) 0;
  cursor: pointer;
  margin-top: var(--space-sm);
}

.filter-checkbox input[type="checkbox"] {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}

.filter-checkbox-box {
  width: 16px;
  height: 16px;
  border: 2px solid var(--color-border);
  border-radius: var(--radius-sm);
  flex-shrink: 0;
  transition: all var(--transition-fast);
  position: relative;
}

.filter-checkbox-box::after {
  content: '';
  position: absolute;
  top: 2px;
  left: 5px;
  width: 4px;
  height: 8px;
  border: solid white;
  border-width: 0 2px 2px 0;
  transform: rotate(45deg) scale(0);
  transition: transform var(--transition-fast);
}

.filter-checkbox input[type="checkbox"]:checked + .filter-checkbox-box {
  background: var(--color-primary);
  border-color: var(--color-primary);
}

.filter-checkbox input[type="checkbox"]:checked + .filter-checkbox-box::after {
  transform: rotate(45deg) scale(1);
}

.filter-checkbox-text {
  font-size: 12px;
  color: var(--color-text-secondary);
}

/* Sidebar Footer */
.filter-sidebar-footer {
  padding: var(--space-md);
  border-top: 1px solid var(--color-border-light);
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
  flex-shrink: 0;
  background: var(--color-bg-panel);
}

.btn-sidebar {
  justify-content: flex-start;
  gap: var(--space-sm);
  padding: var(--space-sm) var(--space-md);
  font-size: 13px;
  color: var(--color-text-secondary);
  width: 100%;
}

.btn-sidebar:hover {
  background: var(--color-bg-warm);
  color: var(--color-text);
}

.btn-sidebar svg {
  flex-shrink: 0;
}

/* ============================================
   Expense Main Content Area
   ============================================ */
.expense-main-content {
  flex: 1;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  background: var(--color-bg);
}

/* ============================================
   Expense List View
   ============================================ */
.expense-list-view {
  flex: 1;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.expense-list-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-lg) var(--space-xl);
  background: var(--color-bg-panel);
  border-bottom: 1px solid var(--color-border);
  flex-shrink: 0;
}

.expense-list-header-left {
  display: flex;
  align-items: baseline;
  gap: var(--space-md);
}

.expense-list-title {
  font-family: var(--font-sans);
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--color-text);
  letter-spacing: -0.02em;
}

.expense-list-subtitle {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--color-text-muted);
}

.expense-list-actions {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.expense-list-search {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-sm) var(--space-md);
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
}

.expense-list-search:focus-within {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(45, 55, 72, 0.1);
}

.expense-list-search svg {
  color: var(--color-text-muted);
  flex-shrink: 0;
}

.expense-list-search input {
  border: none;
  background: transparent;
  font-family: var(--font-sans);
  font-size: 13px;
  color: var(--color-text);
  width: 180px;
  outline: none;
}

.expense-list-search input::placeholder {
  color: var(--color-text-muted);
}

/* Expense List Container */
.expense-list-container {
  flex: 1;
  overflow-y: auto;
  padding: var(--space-lg) var(--space-xl);
}

.expense-list-group {
  margin-bottom: var(--space-xl);
}

/* Month Group Header */
.expense-group-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-md);
  padding-bottom: var(--space-sm);
  border-bottom: 1px solid var(--color-border-light);
}

.expense-group-title {
  font-family: var(--font-sans);
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-text-muted);
}

.expense-group-total {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 500;
  color: var(--color-text-secondary);
}

/* Expense Cards */
.expense-card {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  padding: var(--space-md) var(--space-lg);
  background: var(--color-bg-panel);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-lg);
  margin-bottom: var(--space-sm);
  cursor: pointer;
  transition: all var(--transition-fast);
  position: relative;
}

.expense-card:hover {
  border-color: var(--color-border);
  box-shadow: var(--shadow-sm);
  transform: translateY(-1px);
}

.expense-card:active {
  transform: translateY(0);
}

/* Status Indicator */
.expense-status {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  flex-shrink: 0;
}

.expense-status--draft {
  background: var(--color-accent);
  box-shadow: 0 0 0 3px var(--color-accent-light);
}

.expense-status--unreconciled {
  background: var(--color-danger);
  box-shadow: 0 0 0 3px var(--color-danger-light);
}

.expense-status--reconciled {
  background: var(--color-success);
  box-shadow: 0 0 0 3px var(--color-success-light);
}

/* Card Content */
.expense-card-main {
  flex: 1;
  min-width: 0;
}

.expense-card-header {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  margin-bottom: 4px;
}

.expense-card-number {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 500;
  color: var(--color-text);
}

.expense-card-date {
  font-size: 12px;
  color: var(--color-text-muted);
}

.expense-card-supplier {
  font-size: 14px;
  font-weight: 500;
  color: var(--color-text);
  margin-bottom: 4px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.expense-card-description {
  font-size: 13px;
  color: var(--color-text-secondary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* Card Right Side */
.expense-card-right {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: var(--space-xs);
  flex-shrink: 0;
}

.expense-card-amount {
  font-family: var(--font-mono);
  font-size: 16px;
  font-weight: 600;
  color: var(--color-text);
}

.expense-card-category {
  font-size: 11px;
  font-weight: 500;
  padding: 3px 8px;
  border-radius: var(--radius-sm);
  background: var(--color-bg);
  color: var(--color-text-secondary);
}

.expense-card-badge {
  font-size: 10px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 3px 8px;
  border-radius: var(--radius-sm);
}

.expense-card-badge--draft {
  background: var(--color-accent-light);
  color: var(--color-accent);
}

.expense-card-badge--reconciled {
  background: var(--color-success-light);
  color: var(--color-success);
}

/* Empty State */
.expense-list-empty {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: var(--space-2xl) var(--space-xl);
  text-align: center;
}

.expense-list-empty-icon {
  margin-bottom: var(--space-lg);
  opacity: 0.3;
}

.expense-list-empty h3 {
  font-family: var(--font-sans);
  font-size: 16px;
  font-weight: 600;
  color: var(--color-text-secondary);
  margin-bottom: var(--space-xs);
}

.expense-list-empty p {
  font-size: 14px;
  color: var(--color-text-muted);
}

/* ============================================
   Expense Detail View
   ============================================ */
.expense-detail-view {
  flex: 1;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.expense-detail-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-md) var(--space-xl);
  background: var(--color-bg-panel);
  border-bottom: 1px solid var(--color-border);
  flex-shrink: 0;
  gap: var(--space-md);
}

.expense-detail-header .expense-id {
  font-family: var(--font-mono);
  font-size: 14px;
  font-weight: 600;
  color: var(--color-text);
}

.expense-back-btn {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-size: 13px;
  color: var(--color-text-secondary);
}

.expense-back-btn:hover {
  color: var(--color-text);
}

.expense-detail-content {
  flex: 1;
  display: flex;
  overflow: hidden;
  min-height: 0; /* Allow flex children to shrink and scroll */
}

/* Adjust preview section for detail view */
.expense-detail-view .preview-section {
  flex: 1;
  min-width: 0;
  overflow: auto; /* Allow preview to scroll */
}

.expense-detail-view .details-panel {
  width: 400px;
  overflow-y: auto; /* Allow form panel to scroll */
}

/* ============================================
   Audit History Timeline
   ============================================ */
.audit-history {
  margin-top: var(--space-lg);
  padding-top: var(--space-lg);
  border-top: 1px solid var(--color-border);
}

.audit-header {
  margin-bottom: var(--space-md);
}

.audit-title {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-family: var(--font-sans);
  font-size: 13px;
  font-weight: 600;
  color: var(--color-text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.audit-title svg {
  opacity: 0.7;
}

.audit-timeline {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  max-height: 300px;
  overflow-y: auto;
}

.audit-entry {
  padding: var(--space-sm) var(--space-md);
  background: var(--color-bg-warm);
  border-radius: var(--radius-sm);
  border-left: 3px solid var(--color-border);
}

.audit-entry:first-child {
  border-left-color: var(--color-accent);
}

.audit-entry-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 2px;
}

.audit-date {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--color-text-muted);
}

.audit-action {
  font-family: var(--font-sans);
  font-size: 13px;
  font-weight: 500;
  color: var(--color-text);
}

.audit-details {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--color-text-secondary);
  margin-top: 4px;
  line-height: 1.5;
}

/* Scrollbar styling for audit timeline */
.audit-timeline::-webkit-scrollbar {
  width: 6px;
}

.audit-timeline::-webkit-scrollbar-track {
  background: var(--color-bg-warm);
  border-radius: 3px;
}

.audit-timeline::-webkit-scrollbar-thumb {
  background: var(--color-border);
  border-radius: 3px;
}

.audit-timeline::-webkit-scrollbar-thumb:hover {
  background: var(--color-text-muted);
}

/* ============================================
   PRINT STYLES
   ============================================ */
@media print {
  /* Hide everything except the VAT return modal */
  body > *:not(#vatReturnReportModal) {
    display: none !important;
  }

  /* Reset modal for printing */
  #vatReturnReportModal {
    position: static !important;
    display: block !important;
    background: white !important;
    overflow: visible !important;
  }

  #vatReturnReportModal .modal-overlay {
    position: static !important;
    background: none !important;
    padding: 0 !important;
  }

  #vatReturnReportModal .modal-content {
    max-width: 100% !important;
    max-height: none !important;
    box-shadow: none !important;
    border: none !important;
    overflow: visible !important;
  }

  /* Hide modal buttons for print */
  #vatReturnReportModal .modal-header .btn,
  #vatReturnReportModal .modal-actions {
    display: none !important;
  }

  /* Ensure content is visible */
  .vat-report-content {
    overflow: visible !important;
    max-height: none !important;
  }

  /* Expand all collapsed sections */
  .box-expenses {
    max-height: none !important;
    overflow: visible !important;
  }

  /* Page breaks */
  .report-box {
    break-inside: avoid;
    page-break-inside: avoid;
  }

  /* Cleaner print styling */
  .report-box {
    border: 1px solid #ddd !important;
    margin-bottom: 16px !important;
  }

  .box-expense-item {
    border-bottom: 1px solid #eee !important;
  }
}