/* design tokens & theme configurations */
:root {
  --font-sans: 'Inter', sans-serif;
  --font-mono: 'Roboto Mono', monospace;

  /* default dark theme colors */
  --bg-app: #0f172a;
  --bg-card: rgba(30, 41, 59, 0.45);
  --bg-input: #0f172a;
  --border-color: rgba(255, 255, 255, 0.08);
  --text-primary: #f8fafc;
  --text-secondary: #94a3b8;
  
  /* default accent - will be overridden by javascript */
  --accent: #10b981;
  --accent-hover: #059669;
  --accent-glow: rgba(16, 185, 129, 0.15);
  
  --success: #10b981;
  --danger: #f43f5e;
  --warning: #f59e0b;
  --card-blur: blur(16px);
  --shadow-lg: 0 10px 25px -5px rgba(0, 0, 0, 0.3), 0 8px 10px -6px rgba(0, 0, 0, 0.3);
  --shadow-accent: 0 0 15px var(--accent-glow);
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* light theme overrides */
body.light-theme {
  --bg-app: #f1f5f9;
  --bg-card: rgba(255, 255, 255, 0.7);
  --bg-input: #ffffff;
  --border-color: rgba(15, 23, 42, 0.08);
  --text-primary: #0f172a;
  --text-secondary: #475569;
  --shadow-lg: 0 10px 25px -5px rgba(0, 0, 0, 0.05), 0 8px 10px -6px rgba(0, 0, 0, 0.05);
}

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

body {
  font-family: var(--font-sans);
  background-color: var(--bg-app);
  color: var(--text-primary);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  transition: background-color 0.4s ease, color 0.4s ease;
  overflow-x: hidden;
}

.theme-transition {
  transition: background-color 0.3s ease, border-color 0.3s ease, color 0.3s ease, box-shadow 0.3s ease;
}

.app-container {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  width: 100%;
  max-width: 1400px;
  margin: 0 auto;
  padding: 2rem;
  gap: 1.5rem;
}

/* header styles */
.app-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid var(--border-color);
  margin-bottom: 0.5rem;
}

.logo-area {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.header-logo-svg {
  width: 44px;
  height: 44px;
  background: #ffffff;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 15px rgba(255, 255, 255, 0.1);
  padding: 5px;
}

.logo-area h1 {
  font-size: 1.5rem;
  font-weight: 800;
  letter-spacing: 1px;
  background: linear-gradient(to right, var(--accent), #6366f1);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  transition: var(--transition);
}

.logo-area p {
  font-size: 0.85rem;
  color: var(--text-secondary);
}

/* header actions */
.header-actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.btn-header-link {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  padding: 0.6rem 1.1rem;
  border-radius: 10px;
  font-weight: 600;
  text-decoration: none;
  font-size: 0.85rem;
  transition: var(--transition);
  backdrop-filter: var(--card-blur);
}

.btn-header-link:hover {
  transform: translateY(-2px);
  border-color: var(--accent);
  color: var(--accent);
  box-shadow: var(--shadow-accent);
}

.btn-back {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  padding: 0.6rem 1.1rem;
  border-radius: 10px;
  font-weight: 600;
  text-decoration: none;
  font-size: 0.85rem;
  transition: var(--transition);
  backdrop-filter: var(--card-blur);
}

.btn-back:hover {
  transform: translateX(-3px);
  border-color: var(--accent);
  color: var(--accent);
}

.btn-icon {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  width: 40px;
  height: 40px;
  border-radius: 10px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
  font-size: 1.1rem;
}

.btn-icon:hover {
  transform: translateY(-2px);
  border-color: var(--accent);
  color: var(--accent);
  box-shadow: var(--shadow-accent);
}

/* tabs container styling */
.tabs-container {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1rem;
  margin-bottom: 0.5rem;
}

@media (max-width: 768px) {
  .tabs-container {
    grid-template-columns: repeat(2, 1fr);
  }
}

.tab-button {
  background: var(--bg-card);
  backdrop-filter: var(--card-blur);
  -webkit-backdrop-filter: var(--card-blur);
  border: 1px solid var(--border-color);
  border-radius: 14px;
  padding: 1.2rem;
  color: var(--text-secondary);
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  transition: var(--transition);
}

.tab-button i {
  font-size: 1.25rem;
  transition: var(--transition);
}

.tab-button:hover {
  border-color: var(--accent);
  color: var(--text-primary);
  transform: translateY(-2px);
}

.tab-button.active {
  background: linear-gradient(135deg, var(--bg-card), rgba(30, 41, 59, 0.9));
  border-color: var(--accent);
  color: var(--accent);
  box-shadow: 0 4px 20px var(--accent-glow);
  transform: scale(1.01);
}

.tab-button.active i {
  color: var(--accent);
  transform: scale(1.1);
}

/* main grid layout */
.main-content {
  display: grid;
  grid-template-columns: 1.1fr 1.9fr;
  gap: 1.5rem;
  flex: 1;
}

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

/* card basic styles */
.card {
  background-color: var(--bg-card);
  backdrop-filter: var(--card-blur);
  -webkit-backdrop-filter: var(--card-blur);
  border: 1px solid var(--border-color);
  border-radius: 20px;
  padding: 1.75rem;
  box-shadow: var(--shadow-lg);
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  height: 100%;
}

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

.card-title-wrapper {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.card-title-icon {
  font-size: 1.3rem;
  color: var(--accent);
  transition: var(--transition);
}

.card-header h2 {
  font-size: 1.2rem;
  font-weight: 700;
}

.badge {
  background: var(--accent-glow);
  color: var(--accent);
  padding: 0.3rem 0.8rem;
  border-radius: 20px;
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  border: 1px solid rgba(255, 255, 255, 0.05);
  transition: var(--transition);
}

.badge-secondary {
  background: rgba(148, 163, 184, 0.1);
  color: var(--text-secondary);
}

/* form styles */
.form-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.25rem;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.form-group.relative {
  position: relative;
}

label {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

label i {
  color: var(--accent);
  font-size: 0.9rem;
  transition: var(--transition);
}

input, select {
  width: 100%;
  padding: 0.8rem 1rem;
  border-radius: 12px;
  border: 1px solid var(--border-color);
  background-color: var(--bg-input);
  color: var(--text-primary);
  font-family: var(--font-sans);
  font-size: 0.9rem;
  outline: none;
  transition: var(--transition);
}

input::placeholder {
  color: #64748b;
  opacity: 0.8;
}

input:focus, select:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-glow);
}

input[readonly] {
  background-color: rgba(30, 41, 59, 0.3);
  color: var(--text-secondary);
  border-style: dashed;
  cursor: not-allowed;
}

input[readonly]:focus {
  border-color: var(--border-color);
  box-shadow: none;
}

/* autocomplete dropdown */
.suggestions-dropdown {
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  background: #1e293b;
  border: 1px solid var(--border-color);
  border-radius: 12px;
  margin-top: 5px;
  max-height: 200px;
  overflow-y: auto;
  z-index: 100;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(20px);
}

.light-theme .suggestions-dropdown {
  background: #ffffff;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.15);
}

.suggestion-item {
  padding: 0.8rem 1rem;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  font-size: 0.85rem;
  transition: var(--transition);
}

.light-theme .suggestion-item {
  border-bottom-color: rgba(0, 0, 0, 0.05);
}

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

.suggestion-item:hover {
  background-color: var(--accent-glow);
  color: var(--accent);
}

.suggestion-code {
  font-family: var(--font-mono);
  font-weight: 600;
  background: rgba(255, 255, 255, 0.1);
  padding: 0.15rem 0.4rem;
  border-radius: 5px;
  font-size: 0.75rem;
}

.light-theme .suggestion-code {
  background: rgba(0, 0, 0, 0.05);
}

.suggestion-name {
  flex: 1;
  margin-left: 0.75rem;
  text-align: left;
}

/* buttons styling */
.btn-primary {
  background: var(--accent);
  color: #ffffff;
  border: none;
  padding: 0.9rem 1.5rem;
  border-radius: 12px;
  font-size: 0.95rem;
  font-weight: 700;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  transition: var(--transition);
  box-shadow: 0 4px 12px var(--accent-glow);
}

.btn-primary:hover {
  background: var(--accent-hover);
  transform: translateY(-1px);
  box-shadow: 0 6px 16px var(--accent-glow);
}

.btn-primary:active {
  transform: translateY(1px);
}

.btn-success {
  background: var(--success);
  color: #ffffff;
  border: none;
  padding: 0.8rem 1.25rem;
  border-radius: 12px;
  font-size: 0.9rem;
  font-weight: 700;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  transition: var(--transition);
  box-shadow: 0 4px 10px rgba(16, 185, 129, 0.2);
}

.btn-success:hover:not(:disabled) {
  background: #059669;
  transform: translateY(-1px);
  box-shadow: 0 6px 14px rgba(16, 185, 129, 0.3);
}

.btn-success:disabled {
  background: #334155;
  color: #64748b;
  box-shadow: none;
  cursor: not-allowed;
}

.light-theme .btn-success:disabled {
  background: #e2e8f0;
  color: #94a3b8;
}

.btn-secondary {
  background: transparent;
  color: var(--text-primary);
  border: 1px solid var(--border-color);
  padding: 0.8rem 1.25rem;
  border-radius: 12px;
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  transition: var(--transition);
}

.btn-secondary:hover:not(:disabled) {
  border-color: var(--danger);
  color: var(--danger);
  background-color: rgba(244, 63, 94, 0.05);
}

.btn-secondary:disabled {
  border-color: var(--border-color);
  color: var(--text-secondary);
  opacity: 0.5;
  cursor: not-allowed;
}

.full-width {
  width: 100%;
}

/* table section layout */
.table-section {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.table-wrapper {
  flex: 1;
  overflow-y: auto;
  border-radius: 12px;
  border: 1px solid var(--border-color);
  background: rgba(15, 23, 42, 0.2);
  min-height: 250px;
  max-height: 380px;
  position: relative;
}

.light-theme .table-wrapper {
  background: rgba(255, 255, 255, 0.3);
}

/* draft table */
.draft-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  font-size: 0.85rem;
}

.draft-table th {
  padding: 0.9rem 1rem;
  font-weight: 600;
  color: var(--text-secondary);
  border-bottom: 1px solid var(--border-color);
  background-color: rgba(30, 41, 59, 0.4);
  position: sticky;
  top: 0;
  z-index: 10;
}

.light-theme .draft-table th {
  background-color: rgba(226, 232, 240, 0.6);
}

.draft-table td {
  padding: 0.85rem 1rem;
  border-bottom: 1px solid var(--border-color);
  color: var(--text-primary);
  vertical-align: middle;
}

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

.draft-table tbody tr {
  transition: var(--transition);
}

.draft-table tbody tr:hover {
  background-color: rgba(255, 255, 255, 0.02);
}

.light-theme .draft-table tbody tr:hover {
  background-color: rgba(0, 0, 0, 0.02);
}

.font-mono {
  font-family: var(--font-mono);
}

.td-actions {
  text-align: center;
}

.btn-delete-row {
  background: transparent;
  border: none;
  color: var(--text-secondary);
  width: 32px;
  height: 32px;
  border-radius: 8px;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
}

.btn-delete-row:hover {
  color: var(--danger);
  background-color: rgba(244, 63, 94, 0.15);
  transform: scale(1.05);
}

/* empty state */
.table-empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 90%;
  text-align: center;
  gap: 0.75rem;
}

.empty-icon {
  font-size: 3rem;
  color: var(--text-secondary);
  opacity: 0.4;
  margin-bottom: 0.25rem;
}

.table-empty-state p {
  font-weight: 600;
  color: var(--text-secondary);
  font-size: 0.95rem;
}

.table-empty-state span {
  font-size: 0.8rem;
  color: #64748b;
}

.hidden {
  display: none !important;
}

/* action footer in table section */
.action-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-top: 1px solid var(--border-color);
  padding-top: 1.25rem;
  gap: 1.5rem;
}

@media (max-width: 600px) {
  .action-footer {
    flex-direction: column;
    align-items: stretch;
  }
}

.totals-summary {
  display: flex;
  gap: 2rem;
}

.total-box {
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
}

.total-label {
  font-size: 0.75rem;
  color: var(--text-secondary);
  text-transform: uppercase;
  font-weight: 700;
  letter-spacing: 0.5px;
}

.total-value {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--accent);
  transition: var(--transition);
}

.action-buttons {
  display: flex;
  gap: 0.75rem;
}

/* fade in animation helper classes */
.animate-fade-in {
  animation: fadeIn 0.5s cubic-bezier(0.16, 1, 0.3, 1) forwards;
  opacity: 0;
  transform: translateY(10px);
}

@keyframes fadeIn {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* modal styling */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: rgba(15, 23, 42, 0.75);
  backdrop-filter: blur(8px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 9999;
  padding: 1.5rem;
  animation: modalOverlayFadeIn 0.3s ease forwards;
}

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

.modal-card {
  background: #1e293b;
  border: 1px solid var(--border-color);
  border-radius: 24px;
  width: 100%;
  max-width: 600px;
  padding: 2.25rem;
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  transform: scale(0.95);
  animation: modalScaleUp 0.4s cubic-bezier(0.34, 1.56, 0.64, 1) forwards;
}

.light-theme .modal-card {
  background: #ffffff;
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.15);
}

@keyframes modalScaleUp {
  to {
    transform: scale(1);
  }
}

.modal-header {
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
}

.success-icon-wrapper {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  background: rgba(16, 185, 129, 0.15);
  color: var(--success);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2.5rem;
  margin-bottom: 0.5rem;
  animation: pulseSuccess 2s infinite;
}

@keyframes pulseSuccess {
  0% { box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.4); }
  70% { box-shadow: 0 0 0 15px rgba(16, 185, 129, 0); }
  100% { box-shadow: 0 0 0 0 rgba(16, 185, 129, 0); }
}

.modal-header h2 {
  font-size: 1.4rem;
  font-weight: 800;
}

.modal-header p {
  font-size: 0.9rem;
  color: var(--text-secondary);
}

/* receipt ticket styling */
.receipt-box {
  background: #0f172a;
  border: 1px dashed var(--border-color);
  border-radius: 16px;
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.light-theme .receipt-box {
  background: #f8fafc;
}

.receipt-title {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--text-secondary);
  letter-spacing: 1px;
}

.receipt-divider {
  border-top: 1px dashed var(--border-color);
  margin: 0.25rem 0;
}

.receipt-meta {
  display: flex;
  justify-content: space-between;
  font-size: 0.85rem;
}

.receipt-meta div {
  color: var(--text-secondary);
}

.receipt-meta strong {
  color: var(--text-primary);
}

.receipt-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  font-size: 0.8rem;
  margin-top: 0.5rem;
}

.receipt-table th {
  padding: 0.5rem;
  border-bottom: 1px solid var(--border-color);
  color: var(--text-secondary);
}

.receipt-table td {
  padding: 0.6rem 0.5rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.03);
  color: var(--text-primary);
}

.light-theme .receipt-table td {
  border-bottom-color: rgba(0, 0, 0, 0.03);
}

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

.modal-footer {
  display: flex;
  justify-content: center;
  margin-top: 0.5rem;
}

.modal-footer button {
  width: 100%;
  max-width: 250px;
}

/* Custom Checkbox Design */
.checkbox-container {
  display: flex;
  align-items: center;
  position: relative;
  padding-left: 2rem;
  cursor: pointer;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-secondary);
  user-select: none;
  min-height: 24px;
}

.checkbox-container input {
  position: absolute;
  opacity: 0;
  cursor: pointer;
  height: 0;
  width: 0;
}

.checkmark {
  position: absolute;
  top: 50%;
  left: 0;
  transform: translateY(-50%);
  height: 20px;
  width: 20px;
  background-color: var(--bg-input);
  border: 1px solid var(--border-color);
  border-radius: 6px;
  transition: var(--transition);
}

.checkbox-container:hover input ~ .checkmark {
  border-color: var(--accent);
}

.checkbox-container input:checked ~ .checkmark {
  background-color: var(--accent);
  border-color: var(--accent);
  box-shadow: 0 0 10px var(--accent-glow);
}

.checkmark:after {
  content: "";
  position: absolute;
  display: none;
}

.checkbox-container input:checked ~ .checkmark:after {
  display: block;
}

.checkbox-container .checkmark:after {
  left: 7px;
  top: 3px;
  width: 5px;
  height: 10px;
  border: solid white;
  border-width: 0 2px 2px 0;
  transform: rotate(45deg);
}

.checkbox-label-text {
  margin-left: 0.25rem;
  color: var(--text-primary);
  transition: var(--transition);
}

.checkbox-container input:checked ~ .checkbox-label-text {
  color: var(--accent);
}

/* Transfer Header Banner Style */
.transfer-banner {
  background: rgba(99, 102, 241, 0.08);
  border: 1px solid rgba(99, 102, 241, 0.25);
  border-radius: 12px;
  padding: 0.8rem 1.2rem;
  font-size: 0.85rem;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 1rem;
  animation: fadeIn 0.4s ease forwards;
}

.light-theme .transfer-banner {
  background: rgba(99, 102, 241, 0.04);
}

.transfer-banner i {
  color: var(--accent);
  font-size: 1rem;
}

.transfer-banner strong {
  color: var(--accent);
  background: rgba(255, 255, 255, 0.05);
  padding: 0.15rem 0.5rem;
  border-radius: 6px;
  font-weight: 700;
}

.light-theme .transfer-banner strong {
  background: rgba(0, 0, 0, 0.03);
}