:root {
  --bg: #09090B;
  --bg-elevated: #141417;
  --bg-subtle: #0D0D0F;
  --bg-lift: #1A1A1D;
  --bg-hover: rgba(255, 255, 255, 0.05);
  --bg-active: rgba(255, 255, 255, 0.09);

  --border: rgba(255, 255, 255, 0.07);
  --border-strong: rgba(255, 255, 255, 0.13);

  --text: #FAFAFA;
  --text-muted: #A1A1AA;
  --text-subtle: #71717A;
  --text-inverse: #09090B;

  --accent: #F7931A;
  --accent-hover: #FFA940;
  --accent-glow: rgba(247, 147, 26, 0.18);

  --success: #4CB782;
  --error: #E5484D;
  --error-bg: rgba(229, 72, 77, 0.08);
  --error-border: rgba(229, 72, 77, 0.28);

  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-mono: 'JetBrains Mono', ui-monospace, 'SF Mono', Menlo, monospace;

  --radius-sm: 6px;
  --radius-md: 8px;
  --radius-lg: 10px;

  --topbar-h: 52px;
  --content-max: 1080px;

  --gradient-brand: linear-gradient(135deg, #F7931A 0%, #FFC557 100%);
}

* {
  box-sizing: border-box;
}

html, body {
  margin: 0;
  padding: 0;
  height: 100%;
}

body {
  font-family: var(--font-sans);
  font-size: 13px;
  line-height: 1.5;
  color: var(--text);
  background-color: var(--bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  font-feature-settings: 'cv11', 'ss01', 'ss03';
}

#app {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

h1, h2, h3, h4, p {
  margin: 0;
}

.hidden {
  display: none !important;
}

::-webkit-scrollbar {
  width: 10px;
  height: 10px;
}
::-webkit-scrollbar-track {
  background: var(--bg);
}
::-webkit-scrollbar-thumb {
  background: var(--border-strong);
  border-radius: 10px;
  border: 2px solid var(--bg);
}
::-webkit-scrollbar-thumb:hover {
  background: var(--text-subtle);
}

::selection {
  background: var(--accent-glow);
  color: var(--text);
}

/* Spinner */
.spinner {
  display: inline-block;
  width: 14px;
  height: 14px;
  border: 1.5px solid currentColor;
  border-top-color: transparent;
  border-radius: 50%;
  opacity: 0.3;
  animation: spin 0.7s linear infinite;
  flex-shrink: 0;
  vertical-align: middle;
}
.spinner.spinner-active {
  opacity: 1;
  border-top-color: currentColor;
}
.spinner-lg {
  width: 16px;
  height: 16px;
  border-width: 2px;
}
@keyframes spin {
  to { transform: rotate(360deg); }
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  height: 32px;
  padding: 0 12px;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  font-family: inherit;
  font-size: 13px;
  font-weight: 500;
  line-height: 1;
  cursor: pointer;
  transition: background-color 0.12s, border-color 0.12s, color 0.12s, opacity 0.12s;
  user-select: none;
  white-space: nowrap;
}
.btn:disabled {
  cursor: not-allowed;
  opacity: 0.5;
}
.btn-primary {
  background-color: #FAFAFA;
  color: var(--text-inverse);
  border-color: #FAFAFA;
  font-weight: 600;
}
.btn-primary:hover:not(:disabled) {
  background-color: #E4E4E7;
  border-color: #E4E4E7;
}
.btn-secondary {
  background-color: transparent;
  color: var(--text);
  border-color: var(--border-strong);
}
.btn-secondary:hover:not(:disabled) {
  background-color: var(--bg-hover);
  border-color: var(--text-subtle);
}
.btn-ghost {
  background-color: transparent;
  color: var(--text-muted);
}
.btn-ghost:hover:not(:disabled) {
  background-color: var(--bg-hover);
  color: var(--text);
}

.icon-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  padding: 0;
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  background-color: transparent;
  color: var(--text-muted);
  cursor: pointer;
  transition: background-color 0.12s, color 0.12s;
}
.icon-btn:hover:not(:disabled) {
  background-color: var(--bg-hover);
  color: var(--text);
}
.icon-btn:disabled {
  cursor: not-allowed;
  opacity: 0.5;
}
.icon-btn svg {
  width: 16px;
  height: 16px;
}

/* Form fields */
.field {
  position: relative;
  display: block;
  margin: 0 0 12px 0;
}
.field label {
  display: block;
  margin-bottom: 6px;
  font-size: 12px;
  font-weight: 500;
  color: var(--text-muted);
}
.field input {
  width: 100%;
  height: 34px;
  padding: 0 10px;
  background-color: var(--bg-subtle);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text);
  font-family: inherit;
  font-size: 13px;
  outline: none;
  transition: border-color 0.12s, box-shadow 0.12s, background-color 0.12s;
}
.field input::placeholder {
  color: var(--text-subtle);
}
.field input:hover {
  border-color: var(--border-strong);
}
.field input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-glow);
  background-color: var(--bg-elevated);
}
.field input:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

/* Cards */
.card {
  background-color: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  transition: border-color 0.12s, background-color 0.12s;
}

/* Top bar */
.topbar {
  display: flex;
  align-items: center;
  height: var(--topbar-h);
  padding: 0 16px;
  background-color: rgba(9, 9, 11, 0.78);
  backdrop-filter: blur(10px) saturate(140%);
  -webkit-backdrop-filter: blur(10px) saturate(140%);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 10;
  gap: 12px;
}
.topbar-brand {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  font-weight: 600;
  color: var(--text);
  letter-spacing: -0.01em;
}
.topbar-brand-mark {
  width: 18px;
  height: 18px;
  border-radius: 5px;
  background: var(--gradient-brand);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #1A1A1A;
  font-size: 11px;
  font-weight: 700;
  font-family: var(--font-mono);
  flex-shrink: 0;
}
.topbar-spacer {
  flex: 1;
}
.topbar-actions {
  display: flex;
  align-items: center;
  gap: 4px;
}
.topbar-user {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 0 8px 0 6px;
  height: 28px;
  border-radius: var(--radius-sm);
  color: var(--text-muted);
  font-size: 12px;
  font-family: var(--font-mono);
  font-weight: 500;
  transition: background-color 0.12s, color 0.12s;
  cursor: pointer;
  border: none;
  background: transparent;
  font-family: var(--font-mono);
}
.topbar-user:hover {
  background-color: var(--bg-hover);
  color: var(--text);
}
.topbar-user-avatar {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 20px;
  height: 20px;
  border-radius: 4px;
  background-color: var(--bg-active);
  color: var(--text);
  font-family: var(--font-sans);
  font-size: 10px;
  font-weight: 600;
  text-transform: uppercase;
  flex-shrink: 0;
}

/* Login */
.login-screen {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  background-color: var(--bg);
  position: relative;
  overflow: hidden;
}
.login-screen::before {
  content: '';
  position: absolute;
  top: -240px;
  left: 50%;
  transform: translateX(-50%);
  width: 700px;
  height: 700px;
  background: radial-gradient(circle, var(--accent-glow) 0%, transparent 55%);
  pointer-events: none;
  opacity: 0.55;
}
.login-card {
  position: relative;
  width: 100%;
  max-width: 360px;
  padding: 28px;
  background-color: var(--bg-elevated);
}
.login-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 22px;
}
.login-brand-mark {
  width: 26px;
  height: 26px;
  border-radius: 6px;
  background: var(--gradient-brand);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #1A1A1A;
  font-size: 14px;
  font-weight: 700;
  font-family: var(--font-mono);
  flex-shrink: 0;
}
.login-brand-name {
  font-size: 13px;
  font-weight: 600;
  letter-spacing: -0.01em;
}
.login-brand-tag {
  margin-left: auto;
  font-size: 10px;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-subtle);
  padding: 2px 6px;
  border: 1px solid var(--border);
  border-radius: 4px;
}
.login-card h1 {
  margin: 0 0 4px 0;
  font-size: 18px;
  font-weight: 600;
  letter-spacing: -0.015em;
  color: var(--text);
}
.login-card .lede {
  margin: 0 0 20px 0;
  color: var(--text-muted);
  font-size: 13px;
  line-height: 1.5;
}
.login-card .alert {
  margin: 0 0 14px 0;
  padding: 10px 12px;
  border-radius: var(--radius-sm);
  background-color: var(--error-bg);
  border: 1px solid var(--error-border);
  color: #FF8A8C;
  font-size: 12px;
  line-height: 1.4;
  display: flex;
  align-items: center;
  gap: 8px;
}
.login-card .alert svg {
  width: 14px;
  height: 14px;
  flex-shrink: 0;
}
.login-card .actions {
  display: flex;
  justify-content: flex-end;
  margin-top: 16px;
}
.login-card .actions .btn {
  width: 100%;
  height: 34px;
}

/* Dashboard */
.dashboard-screen {
  flex: 1;
  display: flex;
  flex-direction: column;
  background-color: var(--bg);
}
.dashboard-content {
  flex: 1;
  padding: 28px 24px 56px 24px;
  max-width: var(--content-max);
  width: 100%;
  margin: 0 auto;
  animation: fade-in 0.25s ease-out;
}
@keyframes fade-in {
  from { opacity: 0; transform: translateY(4px); }
  to { opacity: 1; transform: translateY(0); }
}

.section {
  margin-bottom: 28px;
}
.section:last-child {
  margin-bottom: 0;
}
.section-title {
  display: flex;
  align-items: center;
  gap: 8px;
  margin: 0 0 10px 0;
  padding: 0;
  font-size: 11px;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-subtle);
}
.section-title-dot {
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background-color: var(--text-subtle);
  flex-shrink: 0;
}

.metrics-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 12px;
}

.metric-card {
  background-color: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 14px;
  min-height: 140px;
  transition: border-color 0.12s, background-color 0.12s;
}
.metric-card:hover {
  border-color: var(--border-strong);
  background-color: var(--bg-lift);
}
.metric-card-header {
  display: flex;
  align-items: center;
  gap: 8px;
}
.metric-card-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 20px;
  height: 20px;
  color: var(--text-muted);
  flex-shrink: 0;
}
.metric-card-icon svg {
  width: 14px;
  height: 14px;
}
.metric-card-icon.added    { color: var(--success); }
.metric-card-icon.updated  { color: var(--accent); }
.metric-card-icon.deleted  { color: var(--error); }
.metric-card-icon.logs     { color: var(--text-muted); }
.metric-card-icon.time     { color: var(--text-muted); }
.metric-card-icon.storage  { color: var(--text-muted); }
.metric-card-icon.lnd      { color: var(--accent); }
.metric-card-title {
  margin: 0;
  font-size: 13px;
  font-weight: 500;
  color: var(--text);
  letter-spacing: -0.005em;
}
.metric-card-subtitle {
  margin: 0;
  font-size: 11px;
  color: var(--text-subtle);
  letter-spacing: 0.01em;
}
.metric-card-stats {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-top: auto;
}
.metric-stat {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
}
.metric-stat-label {
  font-size: 11px;
  color: var(--text-subtle);
  font-weight: 500;
  letter-spacing: 0.01em;
}
.metric-stat-value {
  font-size: 18px;
  font-weight: 600;
  color: var(--text);
  font-variant-numeric: tabular-nums;
  letter-spacing: -0.01em;
  font-family: var(--font-mono);
}
.metric-stat-value-large {
  font-size: 22px;
}

.info-card {
  background-color: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 0 16px;
}
.info-card-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px 0;
  gap: 16px;
}
.info-card-row + .info-card-row {
  border-top: 1px solid var(--border);
}
.info-card-label {
  color: var(--text-muted);
  font-size: 13px;
  flex-shrink: 0;
}
.info-card-value {
  color: var(--text);
  font-size: 13px;
  font-weight: 500;
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  text-align: right;
  word-break: break-all;
}

/* Sync runs */
.sync-runs-table-wrap {
  overflow-x: auto;
}
.sync-runs-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 12px;
}
.sync-runs-table th,
.sync-runs-table td {
  padding: 10px 14px;
  text-align: left;
  border-bottom: 1px solid var(--border);
  white-space: nowrap;
}
.sync-runs-table th {
  font-family: var(--font-sans);
  font-size: 11px;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-subtle);
  background-color: var(--bg-subtle);
  border-bottom-color: var(--border-strong);
}
.sync-runs-table tbody tr:last-child td {
  border-bottom: none;
}
.sync-runs-table td {
  font-family: var(--font-mono);
  color: var(--text);
  font-variant-numeric: tabular-nums;
}
.sync-runs-table th:first-child,
.sync-runs-table td:first-child {
  padding-left: 16px;
  width: 1%;
  color: var(--text-subtle);
}
.sync-runs-table th:last-child,
.sync-runs-table td:last-child {
  padding-right: 16px;
}
.sync-runs-table .sync-runs-count {
  color: var(--text-muted);
}
.sync-runs-table .sync-runs-fail-reason {
  display: block;
  max-width: 260px;
  overflow: hidden;
  text-overflow: ellipsis;
  color: var(--error);
}
.sync-runs-table tbody tr.sync-runs-row-failed {
  background-color: var(--error-bg);
}
.sync-runs-table tbody tr.sync-runs-row-failed td {
  color: #FF8A8C;
}
.sync-runs-table tbody tr.sync-runs-row-failed td:first-child {
  color: var(--error);
}
.sync-runs-table .sync-runs-status-ok {
  color: var(--success);
}
.sync-runs-empty {
  padding: 24px 16px;
  text-align: center;
  color: var(--text-subtle);
  font-size: 12px;
}

/* Top RPC calls */
.top-rpcs-table-wrap {
  overflow-x: auto;
}
.top-rpcs-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 12px;
}
.top-rpcs-table th,
.top-rpcs-table td {
  padding: 10px 14px;
  text-align: left;
  border-bottom: 1px solid var(--border);
  white-space: nowrap;
}
.top-rpcs-table th {
  font-family: var(--font-sans);
  font-size: 11px;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-subtle);
  background-color: var(--bg-subtle);
  border-bottom-color: var(--border-strong);
}
.top-rpcs-table tbody tr:last-child td {
  border-bottom: none;
}
.top-rpcs-table td {
  font-family: var(--font-mono);
  color: var(--text);
  font-variant-numeric: tabular-nums;
}
.top-rpcs-table th:first-child,
.top-rpcs-table td:first-child {
  padding-left: 16px;
  width: 1%;
  color: var(--text-subtle);
}
.top-rpcs-table th:last-child,
.top-rpcs-table td:last-child {
  padding-right: 16px;
}
.top-rpcs-table .top-rpcs-count {
  color: var(--text-muted);
}
.top-rpcs-empty {
  padding: 24px 16px;
  text-align: center;
  color: var(--text-subtle);
  font-size: 12px;
}

/* Top REST API calls */
.top-rest-table-wrap {
  overflow-x: auto;
}
.top-rest-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 12px;
}
.top-rest-table th,
.top-rest-table td {
  padding: 10px 14px;
  text-align: left;
  border-bottom: 1px solid var(--border);
  white-space: nowrap;
}
.top-rest-table th {
  font-family: var(--font-sans);
  font-size: 11px;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-subtle);
  background-color: var(--bg-subtle);
  border-bottom-color: var(--border-strong);
}
.top-rest-table tbody tr:last-child td {
  border-bottom: none;
}
.top-rest-table td {
  font-family: var(--font-mono);
  color: var(--text);
  font-variant-numeric: tabular-nums;
}
.top-rest-table th:first-child,
.top-rest-table td:first-child {
  padding-left: 16px;
  width: 1%;
  color: var(--text-subtle);
}
.top-rest-table th:nth-child(2),
.top-rest-table td:nth-child(2) {
  width: 1%;
  color: var(--text-muted);
}
.top-rest-table th:last-child,
.top-rest-table td:last-child {
  padding-right: 16px;
}
.top-rest-table .top-rest-path {
  max-width: 480px;
  overflow: hidden;
  text-overflow: ellipsis;
}
.top-rest-table .top-rest-count {
  color: var(--text-muted);
}
.top-rest-empty {
  padding: 24px 16px;
  text-align: center;
  color: var(--text-subtle);
  font-size: 12px;
}

/* Storage */
.storage-card {
  gap: 12px;
}
.storage-usage-bar {
  width: 100%;
  height: 4px;
  background-color: var(--bg-subtle);
  border-radius: 2px;
  overflow: hidden;
}
.storage-usage-bar-fill {
  height: 100%;
  background-color: var(--success);
  transition: width 0.2s ease;
}
.storage-usage-bar-fill-warn {
  background-color: #F5A524;
}
.storage-usage-bar-fill-danger {
  background-color: var(--error);
}
.metric-stat-value-pct {
  color: var(--text-subtle);
  font-size: 12px;
  font-weight: 500;
  margin-left: 4px;
}
.storage-empty {
  padding: 24px 16px;
  text-align: center;
  color: var(--text-subtle);
  font-size: 12px;
}

/* Loading state */
.loading-state {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 80px 16px;
  color: var(--text-subtle);
  font-size: 13px;
  gap: 10px;
}
.loading-state .spinner {
  color: var(--text-muted);
}

/* Error */
.error-screen {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
}
.error-card {
  max-width: 420px;
  width: 100%;
  padding: 24px;
  text-align: center;
  background-color: var(--bg-elevated);
}
.error-card-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: var(--radius-md);
  background-color: var(--error-bg);
  border: 1px solid var(--error-border);
  color: var(--error);
  margin-bottom: 14px;
}
.error-card-icon svg {
  width: 18px;
  height: 18px;
}
.error-card h2 {
  margin: 0 0 6px 0;
  font-size: 15px;
  font-weight: 600;
  color: var(--text);
  letter-spacing: -0.01em;
}
.error-card p {
  margin: 0 0 20px 0;
  color: var(--text-muted);
  font-size: 13px;
  line-height: 1.5;
}
.error-card .actions {
  display: flex;
  gap: 8px;
  justify-content: center;
}

/* Toast */
.toast {
  position: fixed;
  bottom: 16px;
  left: 50%;
  transform: translateX(-50%);
  padding: 10px 14px;
  background-color: var(--bg-elevated);
  color: var(--text);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-md);
  z-index: 100;
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.4);
  animation: toast-in 0.18s ease-out;
}
@keyframes toast-in {
  from {
    opacity: 0;
    transform: translate(-50%, 12px);
  }
  to {
    opacity: 1;
    transform: translate(-50%, 0);
  }
}

@media (max-width: 600px) {
  .metrics-grid {
    grid-template-columns: 1fr;
  }
  .dashboard-content {
    padding: 20px 16px 36px 16px;
  }
  .metric-card {
    min-height: 0;
  }
  .topbar-brand-name {
    display: none;
  }
  .topbar-user {
    padding: 0 6px;
  }
  .topbar-user-name {
    display: none;
  }
}