:root {
  color-scheme: light dark;
  --bg: #0b1220;
  --panel: #111827;
  --panel-elevated: #172033;
  --text: #e5e7eb;
  --muted: #9ca3af;
  --accent: #38bdf8;
  --accent-soft: rgba(56, 189, 248, 0.12);
  --border: #1f2937;
  --danger: #f87171;
  --success: #4ade80;
  --warning: #fbbf24;
  font-family: "Segoe UI", system-ui, sans-serif;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  background:
    radial-gradient(circle at top right, rgba(56, 189, 248, 0.08), transparent 30%),
    linear-gradient(180deg, #0b1220 0%, #111827 100%);
  color: var(--text);
}

.panel {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 20px;
}

.panel--sticky {
  position: sticky;
  top: 16px;
  align-self: start;
}

.login-panel {
  max-width: 440px;
  margin: 72px auto;
}

.login-brand {
  margin-bottom: 20px;
}

.logo-mark {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  display: grid;
  place-items: center;
  background: linear-gradient(135deg, #38bdf8, #2563eb);
  color: #0f172a;
  font-weight: 700;
  margin-bottom: 14px;
}

.logo-mark--small {
  width: 40px;
  height: 40px;
  font-size: 0.9rem;
}

label {
  display: grid;
  gap: 6px;
  margin-bottom: 14px;
}

input,
button,
select {
  font: inherit;
}

input,
select {
  padding: 10px 12px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: #0f172a;
  color: var(--text);
}

input:focus,
select:focus {
  outline: 2px solid rgba(56, 189, 248, 0.35);
  border-color: var(--accent);
}

.btn {
  padding: 10px 14px;
  border-radius: 8px;
  border: 0;
  cursor: pointer;
}

.btn--primary {
  width: 100%;
  background: var(--accent);
  color: #0f172a;
  font-weight: 600;
}

.btn--ghost {
  background: transparent;
  color: var(--text);
  border: 1px solid var(--border);
}

.btn--small {
  padding: 6px 10px;
  font-size: 0.85rem;
}

.btn--danger {
  color: var(--danger);
  border-color: rgba(248, 113, 113, 0.35);
}

.table-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.muted {
  color: var(--muted);
}

.error {
  color: var(--danger);
}

.topbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  padding: 20px 24px 12px;
}

.topbar__brand {
  display: flex;
  align-items: center;
  gap: 12px;
}

.topbar__brand h1,
.panel h2 {
  margin: 0;
  font-size: 1.15rem;
}

.topbar__actions {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

.toggle {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--muted);
  font-size: 0.92rem;
}

.tabs {
  display: flex;
  gap: 8px;
  padding: 0 24px 16px;
  overflow-x: auto;
}

.tab {
  background: transparent;
  color: var(--muted);
  border: 1px solid transparent;
  border-radius: 999px;
  padding: 8px 14px;
  cursor: pointer;
}

.tab--active {
  color: var(--text);
  background: var(--accent-soft);
  border-color: rgba(56, 189, 248, 0.25);
}

.tab-panel {
  display: none;
  padding: 0 24px 24px;
}

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

.stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 12px;
  margin-bottom: 16px;
}

.stat-card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 16px;
}

.stat-card strong {
  display: block;
  font-size: 1.7rem;
  margin-top: 6px;
}

.content-grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 16px;
}

.content-grid--overview {
  grid-template-columns: 1fr 1fr;
}

.content-grid--operators {
  grid-template-columns: minmax(280px, 360px) 1fr;
}

.operator-form {
  display: grid;
  gap: 14px;
}

.operator-form label {
  display: grid;
  gap: 6px;
  font-size: 0.92rem;
}

.operator-form input {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--panel-elevated);
  color: var(--text);
}

.form-message {
  margin: 12px 0 0;
  font-size: 0.92rem;
}

.form-message--success {
  color: var(--success);
}

.form-message--error {
  color: var(--danger);
}

.panel-header h2 {
  margin: 0;
}

.panel-header .muted {
  margin: 4px 0 0;
  font-size: 0.9rem;
}

.panel-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  margin-bottom: 12px;
}

.panel-header--stack {
  flex-direction: column;
  align-items: stretch;
}

.toolbar {
  display: flex;
  gap: 8px;
}

.toolbar input {
  flex: 1;
}

.table-wrap {
  overflow: auto;
}

table {
  width: 100%;
  border-collapse: collapse;
}

th,
td {
  text-align: left;
  padding: 10px 8px;
  border-bottom: 1px solid var(--border);
  vertical-align: top;
}

th {
  color: var(--muted);
  font-size: 0.85rem;
  font-weight: 600;
}

tr[data-session-id],
tr[data-install-id] {
  cursor: pointer;
}

tr[data-session-id]:hover,
tr[data-session-id].selected,
tr[data-install-id]:hover {
  background: var(--accent-soft);
}

.badge {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 999px;
  font-size: 0.8rem;
  text-transform: capitalize;
}

.badge--completed {
  background: rgba(74, 222, 128, 0.15);
  color: var(--success);
}

.badge--progress {
  background: rgba(56, 189, 248, 0.15);
  color: var(--accent);
}

.progress {
  display: grid;
  gap: 4px;
}

.progress__bar {
  height: 6px;
  border-radius: 999px;
  background: #0f172a;
  overflow: hidden;
}

.progress__fill {
  height: 100%;
  background: linear-gradient(90deg, #38bdf8, #2563eb);
}

.progress__label {
  font-size: 0.82rem;
  color: var(--muted);
}

.detail-pane pre {
  white-space: pre-wrap;
  word-break: break-word;
  background: #0f172a;
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 12px;
  overflow: auto;
  font-size: 0.85rem;
}

.detail-meta {
  display: grid;
  gap: 8px;
  margin-bottom: 16px;
}

.detail-meta__row {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  padding: 8px 0;
  border-bottom: 1px solid var(--border);
}

.event-list {
  display: grid;
  gap: 10px;
  margin-top: 16px;
}

.event-item {
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 12px;
  background: var(--panel-elevated);
}

.event-item__type {
  text-transform: capitalize;
}

.loading-overlay {
  position: fixed;
  inset: 0;
  background: rgba(11, 18, 32, 0.45);
  display: grid;
  place-items: center;
  z-index: 20;
}

.loading-overlay[hidden] {
  display: none !important;
}

.spinner {
  width: 36px;
  height: 36px;
  border: 3px solid rgba(56, 189, 248, 0.2);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

.empty-state {
  padding: 24px 12px;
  text-align: center;
  color: var(--muted);
}

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

@media (max-width: 960px) {
  .content-grid,
  .content-grid--overview {
    grid-template-columns: 1fr;
  }

  .panel--sticky {
    position: static;
  }

  .topbar {
    flex-direction: column;
    align-items: stretch;
  }
}