/* STARNUS BILLING - Reusable UI Components */

/* Cards */
.card {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-fast);
  overflow: hidden;
}

.card-header {
  padding: 1.15rem 1.25rem;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.card-title {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.card-subtitle {
  font-size: 0.78rem;
  color: var(--text-secondary);
  font-weight: normal;
}

.card-body {
  padding: 1.25rem;
}

.card-footer {
  padding: 0.85rem 1.25rem;
  border-top: 1px solid var(--border-color);
  background-color: var(--bg-surface-secondary);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

/* KPI Stat Cards */
.kpi-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.kpi-card {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 1.15rem 1.25rem;
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  position: relative;
  transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

.kpi-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.kpi-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 0.65rem;
}

.kpi-title {
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

.kpi-icon-wrap {
  width: 38px;
  height: 38px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.kpi-icon-primary { background: var(--color-primary-light); color: var(--color-primary); }
.kpi-icon-success { background: var(--color-success-bg); color: var(--color-success-text); }
.kpi-icon-warning { background: var(--color-warning-bg); color: var(--color-warning-text); }
.kpi-icon-danger { background: var(--color-danger-bg); color: var(--color-danger-text); }
.kpi-icon-info { background: var(--color-info-bg); color: var(--color-info-text); }

.kpi-value {
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1.15;
  margin-bottom: 0.45rem;
  letter-spacing: -0.02em;
}

.kpi-footer {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.75rem;
  color: var(--text-secondary);
}

.kpi-trend {
  display: inline-flex;
  align-items: center;
  gap: 2px;
  font-weight: 600;
  border-radius: var(--radius-sm);
  padding: 1px 4px;
}

.kpi-trend-up {
  color: var(--color-success);
  background: var(--color-success-bg);
}

.kpi-trend-down {
  color: var(--color-danger);
  background: var(--color-danger-bg);
}

.kpi-trend-neutral {
  color: var(--text-muted);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.5rem 0.95rem;
  font-size: 0.85rem;
  font-weight: 500;
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
  cursor: pointer;
  white-space: nowrap;
  border: 1px solid transparent;
  line-height: 1.3;
}

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

.btn-primary {
  background-color: var(--color-primary);
  color: #FFFFFF;
}
.btn-primary:hover:not(:disabled) {
  background-color: var(--color-primary-dark);
  box-shadow: 0 2px 8px rgba(37, 99, 235, 0.35);
}

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

.btn-outline {
  background-color: transparent;
  color: var(--text-primary);
  border-color: var(--border-color);
}
.btn-outline:hover:not(:disabled) {
  background-color: var(--bg-surface-secondary);
  border-color: var(--text-secondary);
}

.btn-danger {
  background-color: var(--color-danger);
  color: #FFFFFF;
}
.btn-danger:hover:not(:disabled) {
  background-color: #B91C1C;
}

.btn-success {
  background-color: var(--color-success);
  color: #FFFFFF;
}
.btn-success:hover:not(:disabled) {
  background-color: #15803D;
}

.btn-sm {
  padding: 0.35rem 0.65rem;
  font-size: 0.78rem;
  border-radius: var(--radius-sm);
}

.btn-lg {
  padding: 0.75rem 1.4rem;
  font-size: 0.95rem;
  border-radius: var(--radius-md);
}

.btn-icon {
  width: 34px;
  height: 34px;
  padding: 0;
  border-radius: var(--radius-md);
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

/* Form Controls */
.form-group {
  margin-bottom: 1rem;
}

.form-label {
  display: block;
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--text-primary);
  margin-bottom: 0.35rem;
}

.form-label.required::after {
  content: " *";
  color: var(--color-danger);
}

.form-control {
  width: 100%;
  height: 38px;
  padding: 0.45rem 0.75rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
  background-color: var(--bg-surface);
  color: var(--text-primary);
  font-size: 0.85rem;
  transition: all var(--transition-fast);
}

textarea.form-control {
  height: auto;
  min-height: 80px;
  padding: 0.65rem 0.75rem;
}

.form-control:focus {
  border-color: var(--border-focus);
  outline: none;
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.15);
}

.form-hint {
  font-size: 0.72rem;
  color: var(--text-secondary);
  margin-top: 0.25rem;
}

.form-error {
  font-size: 0.72rem;
  color: var(--color-danger);
  margin-top: 0.25rem;
}

.select-control {
  appearance: none;
  background-image: url("data:image/svg+xml;charset=UTF-8,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%2364748B' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3e%3cpolyline points='6 9 12 15 18 9'%3e%3c/polyline%3e%3c/svg%3e");
  background-repeat: no-repeat;
  background-position: right 0.75rem center;
  background-size: 14px;
  padding-right: 2rem;
}

/* Badges */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 3px 8px;
  border-radius: var(--radius-full);
  font-size: 0.72rem;
  font-weight: 600;
  line-height: 1.2;
  white-space: nowrap;
}

.badge-success { background: var(--color-success-bg); color: var(--color-success-text); }
.badge-warning { background: var(--color-warning-bg); color: var(--color-warning-text); }
.badge-danger { background: var(--color-danger-bg); color: var(--color-danger-text); }
.badge-info { background: var(--color-info-bg); color: var(--color-info-text); }
.badge-neutral { background: var(--bg-surface-secondary); color: var(--text-secondary); border: 1px solid var(--border-color); }
.badge-primary { background: var(--color-primary-light); color: var(--color-primary); }

.badge-demo {
  background: rgba(217, 119, 6, 0.15);
  color: #D97706;
  border: 1px dashed #D97706;
  font-size: 0.65rem;
  padding: 1px 6px;
  text-transform: uppercase;
}

/* Data Tables */
.table-responsive {
  width: 100%;
  overflow-x: auto;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  background-color: var(--bg-surface);
}

.data-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  font-size: 0.83rem;
}

.data-table th {
  background-color: var(--bg-surface-secondary);
  color: var(--text-secondary);
  font-weight: 600;
  padding: 0.75rem 1rem;
  border-bottom: 1px solid var(--border-color);
  white-space: nowrap;
  user-select: none;
}

.data-table th.sortable {
  cursor: pointer;
}
.data-table th.sortable:hover {
  color: var(--text-primary);
  background-color: var(--bg-surface-tertiary);
}

.data-table td {
  padding: 0.8rem 1rem;
  border-bottom: 1px solid var(--border-color);
  color: var(--text-primary);
  vertical-align: middle;
}

.data-table tbody tr {
  transition: background-color var(--transition-fast);
}

.data-table tbody tr:hover {
  background-color: var(--bg-surface-secondary);
}

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

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

.table-toolbar-left {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-wrap: wrap;
  flex: 1;
}

.table-toolbar-right {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.table-search {
  position: relative;
  min-width: 240px;
  max-width: 320px;
}

.table-search input {
  height: 36px;
  padding-left: 2rem;
  padding-right: 0.75rem;
  font-size: 0.82rem;
}

.table-search i {
  position: absolute;
  left: 0.65rem;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-muted);
}

/* Pagination */
.pagination-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.75rem 1rem;
  background-color: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-top: none;
  border-radius: 0 0 var(--radius-lg) var(--radius-lg);
  font-size: 0.8rem;
  color: var(--text-secondary);
  flex-wrap: wrap;
  gap: 0.75rem;
}

.pagination-controls {
  display: flex;
  align-items: center;
  gap: 0.35rem;
}

.page-btn {
  min-width: 30px;
  height: 30px;
  padding: 0 6px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-color);
  background: var(--bg-surface);
  color: var(--text-primary);
  font-size: 0.78rem;
  cursor: pointer;
  transition: all var(--transition-fast);
}

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

.page-btn.active {
  background: var(--color-primary);
  color: #FFFFFF;
  border-color: var(--color-primary);
  font-weight: 600;
}

.page-btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

/* Modals */
.modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(15, 23, 42, 0.65);
  backdrop-filter: blur(4px);
  z-index: var(--z-modal-backdrop);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.25rem;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-normal);
}

.modal-backdrop.show {
  opacity: 1;
  pointer-events: auto;
}

.modal {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-xl);
  width: 100%;
  max-width: 620px;
  max-height: 90vh;
  display: flex;
  flex-direction: column;
  transform: scale(0.96) translateY(10px);
  transition: transform var(--transition-normal);
  overflow: hidden;
}

.modal-backdrop.show .modal {
  transform: scale(1) translateY(0);
}

.modal-lg { max-width: 860px; }
.modal-xl { max-width: 1080px; }
.modal-sm { max-width: 440px; }

.modal-header {
  padding: 1.15rem 1.5rem;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.modal-title {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text-primary);
}

.modal-close-btn {
  width: 32px;
  height: 32px;
  border-radius: var(--radius-md);
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-fast);
}

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

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

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

/* Toast Notifications */
.toast-container {
  position: fixed;
  top: 1.25rem;
  right: 1.25rem;
  z-index: var(--z-toast);
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
  max-width: 380px;
  width: calc(100% - 2.5rem);
  pointer-events: none;
}

.toast {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 0.85rem 1rem;
  box-shadow: var(--shadow-lg);
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  pointer-events: auto;
  animation: toastSlideIn 0.25s cubic-bezier(0.16, 1, 0.3, 1);
  transition: all var(--transition-normal);
}

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

.toast-icon {
  font-size: 1.1rem;
  flex-shrink: 0;
  margin-top: 2px;
}
.toast-success .toast-icon { color: var(--color-success); }
.toast-error .toast-icon { color: var(--color-danger); }
.toast-warning .toast-icon { color: var(--color-warning); }
.toast-info .toast-icon { color: var(--color-info); }

.toast-content {
  flex: 1;
}

.toast-title {
  font-weight: 600;
  font-size: 0.85rem;
  color: var(--text-primary);
  margin-bottom: 2px;
}

.toast-message {
  font-size: 0.78rem;
  color: var(--text-secondary);
  line-height: 1.35;
}

/* Dropdown Menus */
.dropdown {
  position: relative;
  display: inline-block;
}

.dropdown-menu {
  position: absolute;
  top: calc(100% + 6px);
  right: 0;
  min-width: 200px;
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  padding: 0.4rem 0;
  z-index: var(--z-dropdown);
  display: none;
}

.dropdown-menu.show {
  display: block;
  animation: fadeIn 0.15s ease;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(-4px); }
  to { opacity: 1; transform: translateY(0); }
}

.dropdown-item {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  padding: 0.55rem 1rem;
  font-size: 0.82rem;
  color: var(--text-primary);
  cursor: pointer;
  transition: background-color var(--transition-fast);
  text-decoration: none;
}

.dropdown-item:hover {
  background-color: var(--bg-surface-secondary);
}

.dropdown-divider {
  height: 1px;
  background-color: var(--border-color);
  margin: 0.35rem 0;
}

/* Empty & Loading States */
.empty-state {
  text-align: center;
  padding: 3rem 1.5rem;
}

.empty-state-icon {
  font-size: 2.5rem;
  color: var(--text-muted);
  margin-bottom: 0.75rem;
}

.empty-state-title {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 0.35rem;
}

.empty-state-desc {
  font-size: 0.82rem;
  color: var(--text-secondary);
  max-width: 360px;
  margin: 0 auto 1rem;
}

/* Tabs */
.tabs-nav {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  border-bottom: 1px solid var(--border-color);
  margin-bottom: 1.25rem;
  overflow-x: auto;
}

.tab-btn {
  padding: 0.65rem 1rem;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-secondary);
  border-bottom: 2px solid transparent;
  cursor: pointer;
  white-space: nowrap;
  transition: all var(--transition-fast);
}

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

.tab-btn.active {
  color: var(--color-primary);
  border-bottom-color: var(--color-primary);
  font-weight: 600;
}