/* =========================================================
   SITISE INVOICE MANAGER - COMPONENTS & UI ELEMENTS
   ========================================================= */

/* KPI Metric Cards */
.metrics-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1.25rem;
  margin-bottom: 2rem;
}

.metric-card {
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-md);
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  position: relative;
  overflow: hidden;
  box-shadow: var(--shadow-md);
  transition: transform var(--transition-fast), border-color var(--transition-fast);
}

.metric-card:hover {
  transform: translateY(-2px);
  border-color: rgba(0, 163, 224, 0.3);
  box-shadow: var(--shadow-lg), var(--shadow-glow);
}

.metric-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--metric-accent, var(--color-primary));
}

.metric-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 0.75rem;
}

.metric-title {
  font-size: 0.8125rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-secondary);
}

.metric-icon-badge {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(255, 255, 255, 0.04);
  color: var(--metric-accent, var(--color-primary-light));
}

.metric-value {
  font-family: var(--font-family-display);
  font-size: 1.875rem;
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1.1;
  letter-spacing: -0.02em;
}

.metric-subtext {
  font-size: 0.78rem;
  color: var(--text-muted);
  margin-top: 0.5rem;
}

/* Card Containers */
.app-card {
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
  overflow: hidden;
  margin-bottom: 1.5rem;
}

.card-header {
  padding: 1.25rem 1.5rem;
  border-bottom: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.card-title {
  font-family: var(--font-family-display);
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.card-body {
  padding: 1.5rem;
}

.card-footer {
  padding: 1rem 1.5rem;
  border-top: 1px solid var(--border-subtle);
  background: var(--bg-card-subtle);
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 0.75rem;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  font-family: var(--font-family-base);
  font-size: 0.875rem;
  font-weight: 500;
  padding: 0.625rem 1.125rem;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  cursor: pointer;
  text-decoration: none;
  transition: all var(--transition-fast);
  white-space: nowrap;
}

.btn-primary {
  background: linear-gradient(135deg, #00a3e0, #0284c7);
  color: #ffffff;
  box-shadow: 0 2px 10px rgba(0, 163, 224, 0.3);
}

.btn-primary:hover {
  background: linear-gradient(135deg, #0284c7, #0369a1);
  box-shadow: 0 4px 14px rgba(0, 163, 224, 0.45);
  transform: translateY(-1px);
}

.btn-secondary {
  background: var(--bg-card-subtle);
  color: var(--text-primary);
  border-color: var(--border-card);
}

.btn-secondary:hover {
  background: var(--bg-card-hover);
  border-color: rgba(255, 255, 255, 0.2);
}

.btn-outline {
  background: transparent;
  color: var(--text-secondary);
  border-color: var(--border-card);
}

.btn-outline:hover {
  background: rgba(255, 255, 255, 0.04);
  color: var(--text-primary);
  border-color: rgba(255, 255, 255, 0.2);
}

.btn-danger {
  background: rgba(244, 63, 94, 0.15);
  color: #fb7185;
  border-color: rgba(244, 63, 94, 0.3);
}

.btn-danger:hover {
  background: #f43f5e;
  color: #ffffff;
}

.btn-success {
  background: rgba(16, 185, 129, 0.15);
  color: #34d399;
  border-color: rgba(16, 185, 129, 0.3);
}

.btn-success:hover {
  background: #10b981;
  color: #ffffff;
}

.btn-sm {
  padding: 0.375rem 0.75rem;
  font-size: 0.78rem;
  border-radius: var(--radius-xs);
}

.btn-icon {
  padding: 0.5rem;
  border-radius: var(--radius-sm);
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

/* Status Badges */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  padding: 0.25rem 0.625rem;
  border-radius: var(--radius-full);
  font-size: 0.72rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  line-height: 1.2;
}

.badge-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background-color: currentColor;
}

.badge-DRAFT {
  background-color: var(--status-draft-bg);
  color: var(--status-draft);
  border: 1px solid var(--status-draft-border);
}

.badge-SENT, .badge-SCHEDULED {
  background-color: var(--status-sent-bg);
  color: var(--status-sent);
  border: 1px solid var(--status-sent-border);
}

.badge-PAID, .badge-MARKED_AS_PAID {
  background-color: var(--status-paid-bg);
  color: var(--status-paid);
  border: 1px solid var(--status-paid-border);
}

.badge-PARTIALLY_PAID, .badge-PAYMENT_PENDING {
  background-color: var(--status-partial-bg);
  color: var(--status-partial);
  border: 1px solid var(--status-partial-border);
}

.badge-CANCELLED, .badge-REFUNDED, .badge-PARTIALLY_REFUNDED {
  background-color: var(--status-cancelled-bg);
  color: var(--status-cancelled);
  border: 1px solid var(--status-cancelled-border);
}

/* Forms & Inputs */
.form-group {
  margin-bottom: 1.25rem;
}

.form-label {
  display: block;
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--text-secondary);
  margin-bottom: 0.375rem;
}

.form-label .required {
  color: #fb7185;
  margin-left: 2px;
}

.form-control {
  width: 100%;
  padding: 0.625rem 0.875rem;
  background-color: var(--bg-input);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-family: var(--font-family-base);
  font-size: 0.875rem;
  transition: all var(--transition-fast);
}

.form-control:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 2px rgba(0, 163, 224, 0.2);
}

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

textarea.form-control {
  min-height: 80px;
  resize: vertical;
}

/* Date input calendar picker icon in dark mode and light mode */
input[type="date"] {
  color-scheme: light;
}

[data-theme="dark"] input[type="date"] {
  color-scheme: dark;
}

[data-theme="dark"] input[type="date"]::-webkit-calendar-picker-indicator {
  filter: invert(1) brightness(1.2);
  cursor: pointer;
}

[data-theme="light"] input[type="date"]::-webkit-calendar-picker-indicator {
  filter: none;
  cursor: pointer;
}

.form-grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.25rem;
}

.form-grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
}

.form-grid-4 {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1rem;
}

@media (max-width: 768px) {
  .form-grid-2, .form-grid-3, .form-grid-4 {
    grid-template-columns: 1fr;
  }
}

/* Modern Data Tables */
.table-responsive {
  width: 100%;
  overflow-x: auto;
}

.app-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  font-size: 0.875rem;
}

.app-table th {
  padding: 0.875rem 1rem;
  background-color: var(--bg-card-subtle);
  color: var(--text-secondary);
  font-weight: 700;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  border-bottom: 2px solid var(--border-card);
  white-space: nowrap;
}

.app-table td {
  padding: 1rem;
  border-bottom: 1px solid var(--border-subtle);
  color: var(--text-secondary);
  vertical-align: middle;
}

.app-table tr:hover td {
  background-color: var(--bg-card-hover);
  color: var(--text-primary);
}

.app-table .amount-cell {
  font-family: var(--font-family-mono);
  font-weight: 600;
  color: var(--text-primary);
  white-space: nowrap;
}

.app-table .actions-cell {
  text-align: right;
  white-space: nowrap;
}

/* Toolbar & Filters */
.table-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1.25rem;
  flex-wrap: wrap;
}

.search-input-wrapper {
  position: relative;
  flex: 1;
  min-width: 240px;
  max-width: 400px;
}

.search-input-wrapper input {
  padding-left: 2.25rem;
}

.search-icon {
  position: absolute;
  left: 0.75rem;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-muted);
  pointer-events: none;
}

.filter-group {
  display: flex;
  align-items: center;
  gap: 0.625rem;
  flex-wrap: wrap;
}

/* Modal Overlay & Dialog */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--bg-modal-overlay);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  z-index: 50;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
  opacity: 0;
  transition: opacity var(--transition-normal);
}

.modal-overlay.active {
  display: flex;
  opacity: 1;
}

.modal-dialog {
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-xl);
  max-width: 600px;
  width: 100%;
  max-height: 90vh;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  transform: scale(0.96) translateY(10px);
  transition: transform var(--transition-normal);
}

.modal-overlay.active .modal-dialog {
  transform: scale(1) translateY(0);
}

.modal-dialog.modal-lg {
  max-width: 900px;
}

.modal-dialog.modal-xl {
  max-width: 1100px;
}

.modal-header {
  padding: 1.25rem 1.5rem;
  border-bottom: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.modal-title {
  font-family: var(--font-family-display);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-primary);
}

.modal-close-btn {
  background: transparent;
  border: none;
  color: var(--text-muted);
  font-size: 1.25rem;
  cursor: pointer;
  padding: 0.25rem;
  border-radius: var(--radius-xs);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: color var(--transition-fast);
}

.modal-close-btn:hover {
  color: var(--text-primary);
}

.modal-body {
  padding: 1.5rem;
  overflow-y: auto;
  flex: 1;
}

.modal-footer {
  padding: 1.25rem 1.5rem;
  border-top: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 0.75rem;
  background: rgba(9, 13, 22, 0.4);
}

/* Toast Notifications */
.toast-container {
  position: fixed;
  bottom: 1.5rem;
  right: 1.5rem;
  z-index: 90;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  pointer-events: none;
}

.toast {
  pointer-events: auto;
  min-width: 300px;
  max-width: 420px;
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-sm);
  padding: 1rem 1.25rem;
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  box-shadow: var(--shadow-xl);
  animation: slideInToast 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  position: relative;
  overflow: hidden;
}

@keyframes slideInToast {
  from { transform: translateX(100%); opacity: 0; }
  to { transform: translateX(0); opacity: 1; }
}

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

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

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

.toast.toast-warning {
  border-left: 4px solid var(--status-draft);
}

.toast-content {
  flex: 1;
}

.toast-title {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 0.15rem;
}

.toast-message {
  font-size: 0.8125rem;
  color: var(--text-secondary);
}

/* Spinners & Loaders */
.spin {
  animation: rotate 1s linear infinite;
}

@keyframes rotate {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

/* Empty States */
.empty-state {
  text-align: center;
  padding: 3.5rem 1.5rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

.empty-icon {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.04);
  color: var(--text-muted);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1rem;
}

.empty-title {
  font-family: var(--font-family-display);
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 0.375rem;
}

.empty-desc {
  font-size: 0.875rem;
  color: var(--text-muted);
  max-width: 380px;
  margin-bottom: 1.5rem;
}