/* ════════════════════════════════════════════
   Admin Billing — Kiyari Panel
   ════════════════════════════════════════════ */

/* Tab Navigation */
.billing-tabs {
  display: flex;
  gap: 0;
  border-bottom: 1px solid rgba(255,255,255,.08);
  margin-bottom: 1.5rem;
  overflow-x: auto;
  scrollbar-width: none;
  background: rgba(255,255,255,.02);
  border-radius: 12px 12px 0 0;
  padding: 0 .5rem;
}
.billing-tabs::-webkit-scrollbar { display: none; }

.billing-tab {
  padding: .75rem 1.25rem;
  cursor: pointer;
  color: #666;
  font-size: .85rem;
  font-weight: 500;
  white-space: nowrap;
  border: none;
  border-bottom: 2px solid transparent;
  background: transparent;
  outline: none;
  transition: all .2s;
  display: flex;
  align-items: center;
  gap: .4rem;
  font-family: inherit;
}
.billing-tab .material-icons { font-size: 1rem; }
.billing-tab:hover { color: #aaa; background: rgba(255,255,255,.03); }
.billing-tab.active {
  color: #fff;
  border-bottom-color: #fff;
}

/* Tab Content */
.billing-tab-content {
  display: none;
  animation: billingFadeIn .25s ease;
}
.billing-tab-content.active { display: block; }

@keyframes billingFadeIn {
  from { opacity: 0; transform: translateY(6px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* Stats Grid */
.billing-stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.billing-stat-card {
  background: rgba(255,255,255,.03);
  border: 1px solid rgba(255,255,255,.06);
  border-radius: 8px;
  padding: 1rem;
  text-align: center;
}
.billing-stat-card .billing-stat-label {
  font-size: .75rem;
  color: #666;
  text-transform: uppercase;
  letter-spacing: .05em;
  margin-bottom: .4rem;
}
.billing-stat-card .billing-stat-value {
  font-size: 1.5rem;
  font-weight: 700;
  color: #fff;
}
.billing-stat-card .material-icons {
  font-size: 1.3rem;
  color: #555;
  margin-bottom: .3rem;
}

/* Chart */
.billing-chart-container {
  background: rgba(255,255,255,.02);
  border: 1px solid rgba(255,255,255,.06);
  border-radius: 8px;
  padding: 1rem;
  height: 320px;
  position: relative;
}

/* Tables */
.billing-table {
  width: 100%;
  border-collapse: collapse;
  font-size: .85rem;
}
.billing-table th {
  text-align: left;
  color: #666;
  font-weight: 600;
  font-size: .75rem;
  text-transform: uppercase;
  letter-spacing: .05em;
  padding: .75rem .5rem;
  border-bottom: 1px solid rgba(255,255,255,.08);
}
.billing-table td {
  padding: .65rem .5rem;
  border-bottom: 1px solid rgba(255,255,255,.04);
  color: #ccc;
  vertical-align: middle;
}
.billing-table tr:hover td {
  background: rgba(255,255,255,.02);
}
.billing-table tr.row-faded td {
  opacity: .5;
}
.billing-table .text-danger { color: #ef4444; }
.billing-table code {
  background: rgba(255,255,255,.06);
  padding: 2px 8px;
  border-radius: 4px;
  font-size: .8rem;
  letter-spacing: .05em;
}

.billing-table .form-input-sm {
  width: 90px;
  padding: .35rem .5rem;
  font-size: .8rem;
}

.billing-empty-row {
  text-align: center;
  color: #555;
  padding: 2rem !important;
}

/* Actions Bar */
.billing-actions-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1rem;
  gap: 1rem;
  flex-wrap: wrap;
}
.billing-actions-bar h3 {
  font-size: 1rem;
  font-weight: 600;
  color: #fff;
  margin: 0;
}

/* Search */
.billing-search-bar {
  display: flex;
  align-items: center;
  gap: .5rem;
  background: rgba(255,255,255,.04);
  border: 1px solid rgba(255,255,255,.08);
  border-radius: 6px;
  padding: .4rem .75rem;
  max-width: 300px;
  flex: 1;
}
.billing-search-bar .material-icons {
  color: #555;
  font-size: 1.1rem;
}
.billing-search-bar input {
  background: transparent;
  border: none;
  outline: none;
  color: #fff;
  font-size: .85rem;
  width: 100%;
}
.billing-search-bar input::placeholder { color: #555; }

/* Pagination */
.billing-pagination {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: .35rem;
  margin-top: 1rem;
}
.billing-pagination-dots {
  color: #555;
  padding: 0 .25rem;
}

/* Buttons */
.btn-sm {
  padding: .3rem .6rem;
  font-size: .78rem;
  border-radius: 5px;
  cursor: pointer;
  border: none;
  transition: all .15s;
  display: inline-flex;
  align-items: center;
  gap: .25rem;
}
.btn-sm .material-icons { font-size: .9rem; }

/* .btn-primary inherits from dashboard-admin.css (accent-primary violet) */

.btn-outline {
  background: transparent;
  color: #999;
  border: 1px solid rgba(255,255,255,.12);
}
.btn-outline:hover { border-color: rgba(255,255,255,.3); color: #fff; }

.btn-danger {
  background: rgba(239,68,68,.15);
  color: #ef4444;
}
.btn-danger:hover { background: rgba(239,68,68,.25); }

/* Settings Form */
.billing-settings-section {
  margin-bottom: 2rem;
}
.billing-settings-section h3 {
  font-size: .95rem;
  font-weight: 600;
  color: #fff;
  margin-bottom: .75rem;
  display: flex;
  align-items: center;
  gap: .5rem;
}
.billing-settings-section h3 .material-icons {
  font-size: 1.1rem;
  color: #666;
}

.billing-form-group {
  margin-bottom: 1rem;
}
.billing-form-group label {
  display: block;
  font-size: .8rem;
  color: #888;
  margin-bottom: .3rem;
  font-weight: 500;
}

.billing-params-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 1rem;
}

.billing-input-row {
  display: flex;
  gap: .5rem;
  align-items: center;
}
.billing-input-row .form-input { flex: 1; }

.billing-field-hint {
  display: block;
  font-size: .72rem;
  color: #555;
  margin-top: .2rem;
}

/* Status badges */
.billing-status-header {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1.5rem;
}
.billing-status-header .panel-usage-badge {
  font-size: .85rem;
  padding: .4rem .8rem;
  border-radius: 20px;
  display: flex;
  align-items: center;
  gap: .3rem;
  background: rgba(255,255,255,.06);
  color: #666;
  border: 1px solid rgba(255,255,255,.08);
}
.billing-status-header .panel-usage-badge.active {
  background: rgba(34,197,94,.12);
  color: #22c55e;
  border-color: rgba(34,197,94,.2);
}
.billing-status-header .panel-usage-badge .material-icons { font-size: 1.1rem; }
.billing-status-header .billing-status-text {
  font-size: .78rem;
  color: #666;
}

/* Toggle */
.toggle-switch {
  position: relative;
  display: inline-block;
  width: 40px;
  height: 22px;
}
.toggle-switch input { opacity: 0; width: 0; height: 0; }
.toggle-slider {
  position: absolute;
  cursor: pointer;
  top: 0; left: 0; right: 0; bottom: 0;
  background: rgba(255,255,255,.1);
  border-radius: 22px;
  transition: .2s;
}
.toggle-slider::before {
  content: '';
  position: absolute;
  height: 16px;
  width: 16px;
  left: 3px;
  bottom: 3px;
  background: #666;
  border-radius: 50%;
  transition: .2s;
}
.toggle-switch input:checked + .toggle-slider { background: rgba(34,197,94,.3); }
.toggle-switch input:checked + .toggle-slider::before { transform: translateX(18px); background: #22c55e; }

.toggle-sm { width: 34px; height: 18px; }
.toggle-sm .toggle-slider::before { height: 12px; width: 12px; }
.toggle-sm input:checked + .toggle-slider::before { transform: translateX(16px); }

/* Token status */
#mp-token-status {
  font-size: .78rem;
  color: #666;
  margin-top: .2rem;
}

/* Simulation */
.billing-sim-section {
  background: rgba(255,255,255,.02);
  border: 1px solid rgba(255,255,255,.06);
  border-radius: 8px;
  padding: 1rem;
  margin-top: 1.5rem;
}
.billing-sim-section h4 {
  font-size: .85rem;
  font-weight: 600;
  color: #fff;
  margin: 0 0 .75rem;
}
.billing-sim-row {
  display: flex;
  gap: 1rem;
  align-items: flex-end;
  flex-wrap: wrap;
}
.billing-sim-row .billing-form-group { flex: 1; min-width: 100px; margin-bottom: 0; }

#sim-result {
  margin-top: .75rem;
  padding: .5rem .75rem;
  background: rgba(34,197,94,.08);
  border: 1px solid rgba(34,197,94,.15);
  border-radius: 6px;
  color: #22c55e;
  font-size: .85rem;
}

/* Days badge */
.billing-days-badge {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 10px;
  font-size: .78rem;
  font-weight: 600;
  background: rgba(255,255,255,.06);
  color: #999;
}
.billing-days-badge.success { background: rgba(34,197,94,.12); color: #22c55e; }
.billing-days-badge.warning { background: rgba(245,158,11,.12); color: #f59e0b; }
.billing-days-badge.danger  { background: rgba(239,68,68,.12); color: #ef4444; }

/* Reason badge */
.billing-reason-badge {
  display: inline-block;
  padding: 2px 10px;
  border-radius: 10px;
  font-size: .75rem;
  font-weight: 600;
}
.billing-reason-badge.no_credits { background: rgba(239,68,68,.12); color: #ef4444; }
.billing-reason-badge.manual     { background: rgba(245,158,11,.12); color: #f59e0b; }
.billing-reason-badge.violation  { background: rgba(139,92,246,.12); color: #8b5cf6; }

/* Modal */
.billing-modal-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,.7);
  backdrop-filter: blur(4px);
  z-index: 9999;
  justify-content: center;
  align-items: center;
}
.billing-modal {
  background: #111;
  border: 1px solid rgba(255,255,255,.08);
  border-radius: 12px;
  width: 90%;
  max-width: 500px;
  max-height: 85vh;
  overflow-y: auto;
}
.billing-modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 1.25rem;
  border-bottom: 1px solid rgba(255,255,255,.06);
}
.billing-modal-header h3 {
  font-size: 1rem;
  font-weight: 600;
  color: #fff;
  margin: 0;
}
.billing-modal-header .btn-close {
  background: none;
  border: none;
  color: #666;
  cursor: pointer;
  font-size: 1.2rem;
}
.billing-modal-header .btn-close:hover { color: #fff; }

.billing-modal-body {
  padding: 1.25rem;
}

.billing-modal-footer {
  display: flex;
  justify-content: flex-end;
  gap: .5rem;
  padding: .75rem 1.25rem;
  border-top: 1px solid rgba(255,255,255,.06);
}

/* Wallet info */
.billing-wallet-info {
  margin-bottom: 1rem;
}
.billing-wallet-info .panel-info-row {
  display: flex;
  align-items: center;
  gap: .4rem;
  font-size: .85rem;
  color: #ccc;
}
.billing-wallet-info .panel-info-row .material-icons { font-size: 1rem; color: #666; }

/* Checkbox */
.billing-checkbox {
  display: flex;
  align-items: center;
  gap: .5rem;
  font-size: .85rem;
  color: #ccc;
  cursor: pointer;
}
.billing-checkbox input[type="checkbox"] {
  accent-color: #fff;
  width: 16px;
  height: 16px;
}

/* Empty state */
.billing-empty {
  text-align: center;
  padding: 3rem 1rem;
  color: #555;
}
.billing-empty .material-icons {
  font-size: 3rem;
  color: #333;
  margin-bottom: .5rem;
}
.billing-empty p {
  margin: 0;
  font-size: .9rem;
}

/* Spinner */
.spin {
  animation: spinAnim .8s linear infinite;
}
@keyframes spinAnim { from { transform: rotate(0) } to { transform: rotate(360deg) } }

/* Save bar */
.billing-save-bar {
  display: flex;
  justify-content: flex-end;
  margin-top: 1.5rem;
  padding-top: 1rem;
  border-top: 1px solid rgba(255,255,255,.06);
}

/* Promotion Modal */
.billing-modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, .7);
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  backdrop-filter: blur(4px);
}

.billing-modal {
  background: #111;
  border: 1px solid #222;
  border-radius: 16px;
  width: 560px;
  max-width: 95vw;
  max-height: 90vh;
  overflow-y: auto;
}

.billing-modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 24px;
  border-bottom: 1px solid #1e1e1e;
}

.billing-modal-header h3 {
  color: #e0e0e0;
  font-size: 18px;
  margin: 0;
}

.billing-modal-close {
  background: none;
  border: none;
  color: #666;
  cursor: pointer;
  padding: 4px;
}

.billing-modal-close:hover { color: #fff; }

.billing-modal-body {
  padding: 24px;
}

.billing-modal-body .billing-form-group {
  margin-bottom: 16px;
}

.billing-modal-footer {
  display: flex;
  justify-content: flex-end;
  gap: 12px;
  padding: 16px 24px;
  border-top: 1px solid #1e1e1e;
}

.btn-secondary {
  padding: 10px 20px;
  background: transparent;
  border: 1px solid #333;
  color: #aaa;
  border-radius: 8px;
  cursor: pointer;
  font-size: 14px;
}

.btn-secondary:hover {
  background: #1a1a1a;
  color: #fff;
}

/* Responsive */
@media (max-width: 768px) {
  .billing-stats-grid { grid-template-columns: repeat(2, 1fr); }
  .billing-params-grid { grid-template-columns: 1fr; }
  .billing-sim-row { flex-direction: column; }
  .billing-table { font-size: .78rem; }
  .billing-table th, .billing-table td { padding: .5rem .3rem; }
  .billing-actions-bar { flex-direction: column; align-items: stretch; }
  .billing-modal { width: 100%; margin: 16px; }
}