:root {
  --bg-dark: #0b0f19;
  --bg-panel: #111827;
  --bg-card: #1f2937;
  --bg-hover: #374151;
  --border-color: #374151;
  --text-main: #f3f4f6;
  --text-muted: #9ca3af;
  --accent-blue: #3b82f6;
  --accent-hover: #2563eb;
  --color-green: #10b981;
  --color-red: #ef4444;
  --topbar-height: 52px;
}

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

html, body {
  height: 100%;
  width: 100%;
  overflow: hidden;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  background-color: var(--bg-dark);
  color: var(--text-main);
}

.inside-iframe #pbnhub-topbar {
  display: none !important;
}

.inside-iframe .main-content {
  top: 0 !important;
}

/* ---------------- Top-Bar ---------------- */
.topbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--topbar-height);
  background-color: var(--bg-panel);
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 16px;
  z-index: 1000;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
}

.topbar-left, .topbar-right {
  display: flex;
  align-items: center;
  gap: 16px;
}

/* Logo */
.logo {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 16px;
  font-weight: 600;
  letter-spacing: -0.3px;
  cursor: pointer;
  user-select: none;
  transition: transform 0.15s ease, opacity 0.15s ease;
}

.logo:hover {
  opacity: 0.9;
  transform: translateY(-1px);
}

.logo:active {
  transform: translateY(0);
}

.logo-icon {
  font-size: 18px;
}

.logo-text strong {
  color: var(--accent-blue);
}

.badge-vpn {
  font-size: 11px;
  background: rgba(59, 130, 246, 0.15);
  color: #60a5fa;
  border: 1px solid rgba(59, 130, 246, 0.3);
  padding: 2px 8px;
  border-radius: 9999px;
  font-weight: 500;
}

/* Site Selector */
.site-selector-wrapper {
  display: flex;
  align-items: center;
  gap: 8px;
}

.selector-label {
  font-size: 13px;
  color: var(--text-muted);
  font-weight: 500;
}

.custom-select-container {
  position: relative;
  min-width: 240px;
}

.select-trigger {
  display: flex;
  align-items: center;
  gap: 8px;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 6px;
  padding: 6px 12px;
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.15s ease;
  user-select: none;
}

.select-trigger:hover {
  background: var(--bg-hover);
  border-color: #4b5563;
}

.indicator-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: var(--color-green);
  box-shadow: 0 0 8px var(--color-green);
  flex-shrink: 0;
}

.indicator-dot.offline {
  background-color: var(--color-red);
  box-shadow: 0 0 8px var(--color-red);
}

.selected-name {
  flex-grow: 1;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

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

.select-dropdown {
  position: absolute;
  top: calc(100% + 4px);
  left: 0;
  min-width: 280px;
  background: var(--bg-panel);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.5);
  display: none;
  flex-direction: column;
  z-index: 1010;
  overflow: hidden;
}

.select-dropdown.open {
  display: flex;
}

.dropdown-header {
  padding: 8px 12px;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--text-muted);
  background: rgba(0, 0, 0, 0.2);
  border-bottom: 1px solid var(--border-color);
}

.dropdown-list {
  max-height: 280px;
  overflow-y: auto;
}

.dropdown-item {
  display: flex;
  flex-direction: column;
  padding: 10px 12px;
  cursor: pointer;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  transition: background 0.15s ease;
}

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

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

.dropdown-item.active {
  background: rgba(59, 130, 246, 0.15);
  border-left: 3px solid var(--accent-blue);
}

.item-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.item-title {
  font-size: 13px;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 6px;
}

.item-meta {
  font-size: 11px;
  color: var(--text-muted);
  margin-top: 3px;
  display: flex;
  gap: 8px;
}

/* Site Meta Tags */
.site-meta {
  display: flex;
  align-items: center;
  gap: 8px;
}

.meta-item {
  font-size: 12px;
  padding: 3px 8px;
  background: var(--bg-card);
  border-radius: 4px;
  color: var(--text-muted);
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
}

/* Action Buttons */
.action-buttons {
  display: flex;
  align-items: center;
  gap: 8px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  background: var(--bg-card);
  color: var(--text-main);
  border: 1px solid var(--border-color);
  padding: 6px 12px;
  border-radius: 6px;
  font-size: 12px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.15s ease;
}

.btn:hover {
  background: var(--bg-hover);
  border-color: #4b5563;
}

.btn-icon {
  padding: 6px 8px;
}

.btn-primary {
  background: #2563eb;
  border-color: #1d4ed8;
  color: #fff;
}

.btn-primary:hover {
  background: #1d4ed8;
}

.btn-danger {
  background: rgba(239, 68, 68, 0.2);
  border-color: rgba(239, 68, 68, 0.4);
  color: #f87171;
}

.btn-danger:hover {
  background: #ef4444;
  color: #fff;
}

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

.btn-manage-sites {
  background: #374151;
  border-color: #4b5563;
  color: #e5e7eb;
}

.btn-manage-sites:hover {
  background: #4b5563;
}

.btn-telegram {
  background: #0284c7;
  border-color: #0369a1;
  color: #fff;
}

.btn-telegram:hover {
  background: #0369a1;
}

.btn-logout {
  background: rgba(239, 68, 68, 0.15);
  border-color: rgba(239, 68, 68, 0.3);
  color: #fca5a5;
}

.btn-logout:hover {
  background: #ef4444;
  color: #fff;
}

/* Modal Tabs */
.modal-tabs {
  display: flex;
  background: rgba(0, 0, 0, 0.2);
  border-bottom: 1px solid var(--border-color);
  padding: 0 16px;
  gap: 8px;
}

.tab-btn {
  background: none;
  border: none;
  color: var(--text-muted);
  padding: 12px 16px;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  border-bottom: 2px solid transparent;
  transition: all 0.15s ease;
}

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

.tab-btn.active {
  color: var(--accent-blue);
  border-bottom-color: var(--accent-blue);
}

.tab-content {
  display: none;
}

.tab-content.active {
  display: block;
}

/* ---------------- Main Content / Iframe ---------------- */
.main-content {
  position: absolute;
  top: var(--topbar-height);
  left: 0;
  right: 0;
  bottom: 0;
  background: #000;
}

.satellite-frame {
  width: 100%;
  height: 100%;
  border: none;
  background: #ffffff;
}

.loader-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--bg-dark);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 16px;
  z-index: 50;
  transition: opacity 0.2s ease;
}

.loader-overlay.hidden {
  display: none !important;
  opacity: 0;
  pointer-events: none;
}

.spinner {
  width: 36px;
  height: 36px;
  border: 3px solid rgba(59, 130, 246, 0.2);
  border-top-color: var(--accent-blue);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

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

/* ---------------- Standby Screen ---------------- */
.standby-screen {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: radial-gradient(circle at 50% 30%, #1e293b 0%, #0b0f19 75%);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  overflow-y: auto;
  z-index: 10;
}

.standby-card {
  max-width: 680px;
  width: 100%;
  text-align: center;
  background: rgba(17, 24, 39, 0.85);
  backdrop-filter: blur(12px);
  border: 1px solid rgba(55, 65, 81, 0.8);
  border-radius: 16px;
  padding: 36px 32px;
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.5);
  animation: fadeIn 0.3s ease-out;
}

.standby-icon {
  font-size: 44px;
  margin-bottom: 8px;
}

.standby-title {
  font-size: 24px;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 6px;
  letter-spacing: -0.5px;
}

.standby-title strong {
  color: var(--accent-blue);
}

.standby-subtitle {
  font-size: 13px;
  color: var(--text-muted);
  margin-bottom: 24px;
}

.standby-prompt {
  background: rgba(31, 41, 55, 0.6);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 18px;
  margin-bottom: 24px;
}

.standby-prompt p {
  font-size: 14px;
  color: var(--text-main);
  margin-bottom: 14px;
}

.standby-actions {
  display: flex;
  justify-content: center;
  gap: 12px;
}

.btn-lg {
  padding: 9px 18px;
  font-size: 13px;
  font-weight: 600;
  border-radius: 8px;
}

.standby-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  text-align: left;
}

.standby-feature-box {
  background: rgba(15, 23, 42, 0.6);
  border: 1px solid rgba(51, 65, 85, 0.5);
  border-radius: 10px;
  padding: 14px;
}

.feat-icon {
  font-size: 18px;
  margin-bottom: 6px;
}

.feat-title {
  font-size: 12px;
  font-weight: 600;
  color: #60a5fa;
  margin-bottom: 3px;
}

.feat-desc {
  font-size: 11px;
  color: var(--text-muted);
  line-height: 1.4;
}

.indicator-dot.standby {
  background-color: #6b7280;
  box-shadow: none;
}

@media (max-width: 640px) {
  .standby-grid {
    grid-template-columns: 1fr;
  }
}

/* ---------------- Modals ---------------- */
.modal {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 2000;
}

.modal.open {
  display: flex;
}

.modal-backdrop {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.7);
  backdrop-filter: blur(3px);
}

.modal-dialog {
  position: relative;
  background: var(--bg-panel);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  width: 90%;
  max-width: 600px;
  max-height: 85vh;
  display: flex;
  flex-direction: column;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.6);
  z-index: 2010;
  overflow: hidden;
}

.modal-dialog.modal-lg {
  max-width: 800px;
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 20px;
  border-bottom: 1px solid var(--border-color);
}

.modal-title {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 15px;
  font-weight: 600;
}

.status-pill {
  font-size: 11px;
  padding: 2px 8px;
  border-radius: 9999px;
  background: rgba(16, 185, 129, 0.2);
  color: #34d399;
}

.status-pill.offline {
  background: rgba(239, 68, 68, 0.2);
  color: #f87171;
}

.modal-close {
  background: none;
  border: none;
  color: var(--text-muted);
  font-size: 22px;
  cursor: pointer;
  line-height: 1;
}

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

.modal-body {
  padding: 20px;
  overflow-y: auto;
}

.section-title-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 12px;
}

/* Site Form */
.site-form-container {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 16px;
  margin-top: 16px;
}

.site-form-container.hidden {
  display: none;
}

.site-form {
  margin-top: 12px;
}

.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.form-group.full-width {
  grid-column: 1 / -1;
}

.form-group label {
  font-size: 11px;
  color: var(--text-muted);
  text-transform: uppercase;
  font-weight: 600;
}

.form-group input {
  background: var(--bg-panel);
  border: 1px solid var(--border-color);
  color: var(--text-main);
  padding: 8px 10px;
  border-radius: 6px;
  font-size: 13px;
  outline: none;
}

.form-group input:focus {
  border-color: var(--accent-blue);
}

.form-actions {
  display: flex;
  justify-content: flex-end;
  gap: 8px;
  margin-top: 16px;
}

.tg-info-box {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 14px;
  font-size: 13px;
  line-height: 1.5;
  margin-bottom: 20px;
}

.tg-metrics {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-top: 12px;
}

.metric-card {
  background: var(--bg-panel);
  padding: 10px;
  border-radius: 6px;
  text-align: center;
  border: 1px solid rgba(255, 255, 255, 0.05);
}

.metric-val {
  display: block;
  font-size: 20px;
  font-weight: 700;
  color: var(--accent-blue);
}

.metric-label {
  font-size: 11px;
  color: var(--text-muted);
}

.table-responsive {
  overflow-x: auto;
}

.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
  margin-top: 10px;
}

.data-table th, .data-table td {
  padding: 10px 12px;
  text-align: left;
  border-bottom: 1px solid var(--border-color);
}

.data-table th {
  background: var(--bg-card);
  color: var(--text-muted);
  font-size: 11px;
  text-transform: uppercase;
}

.badge-role {
  display: inline-block;
  font-size: 10px;
  font-weight: 600;
  padding: 2px 6px;
  border-radius: 4px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.badge-role.admin {
  background: rgba(37, 99, 235, 0.25);
  color: #60a5fa;
  border: 1px solid rgba(37, 99, 235, 0.4);
}

.badge-role.operator {
  background: rgba(16, 185, 129, 0.2);
  color: #34d399;
  border: 1px solid rgba(16, 185, 129, 0.4);
}

.badge-role.viewer {
  background: rgba(156, 163, 175, 0.2);
  color: #d1d5db;
  border: 1px solid rgba(156, 163, 175, 0.3);
}

.form-help {
  font-size: 11px;
  color: var(--text-muted);
  margin-top: 4px;
}

.btn-user-profile {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  color: var(--text-main);
  display: flex;
  align-items: center;
  gap: 6px;
}

.btn-user-profile:hover {
  border-color: var(--accent-blue);
  background: rgba(59, 130, 246, 0.1);
}