:root {
  --bg: #0b1120;
  --bg-card: #111827;
  --bg-elevated: #1e293b;
  --border: #283548;
  --text: #f1f5f9;
  --text-muted: #94a3b8;
  --primary: #3b82f6;
  --primary-hover: #2563eb;
  --accent: #10b981;
  --accent-hover: #059669;
  --ok-bg: rgba(16, 185, 129, 0.14);
  --ok-border: rgba(16, 185, 129, 0.4);
  --ok-text: #34d399;
  --warn-bg: rgba(245, 158, 11, 0.14);
  --warn-border: rgba(245, 158, 11, 0.42);
  --warn-text: #fbbf24;
  --danger-bg: rgba(239, 68, 68, 0.14);
  --danger-border: rgba(239, 68, 68, 0.45);
  --danger-text: #f87171;
  --info-bg: rgba(59, 130, 246, 0.14);
  --info-border: rgba(59, 130, 246, 0.4);
  --info-text: #60a5fa;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Inter, sans-serif;
  background-color: var(--bg);
  color: var(--text);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

.mono {
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
}

.hidden {
  display: none !important;
}

.container {
  max-width: 980px;
  margin: 0 auto;
  padding: 0 1.25rem;
}

.site-header {
  border-bottom: 1px solid var(--border);
  background: rgba(17, 24, 39, 0.85);
  backdrop-filter: blur(8px);
  padding: 1.25rem 0;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
}

.site-header h1 {
  margin: 0;
  font-size: 1.45rem;
  letter-spacing: -0.02em;
}

.subtitle {
  margin: 0.2rem 0 0;
  color: var(--text-muted);
  font-size: 0.9rem;
}

.header-pill {
  font-size: 0.78rem;
  padding: 0.3rem 0.7rem;
  border-radius: 999px;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  color: var(--text-muted);
}

.main-grid {
  padding-top: 1.75rem;
  padding-bottom: 3rem;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1.5rem;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.22);
}

.card-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
  margin-bottom: 1.1rem;
}

.card-header h2 {
  margin: 0;
  font-size: 1.18rem;
}

.card-desc {
  margin: 0.3rem 0 0;
  color: var(--text-muted);
  font-size: 0.9rem;
  max-width: 640px;
}

.btn-group {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.52rem 0.95rem;
  border-radius: 8px;
  font-size: 0.88rem;
  font-weight: 600;
  cursor: pointer;
  border: 1px solid transparent;
  text-decoration: none;
  transition: background-color 0.15s ease, border-color 0.15s ease, opacity 0.15s ease;
  white-space: nowrap;
}

.btn:disabled {
  opacity: 0.55;
  cursor: not-allowed;
}

.btn-primary {
  background: var(--primary);
  color: #fff;
}

.btn-primary:hover:not(:disabled) {
  background: var(--primary-hover);
}

.btn-accent {
  background: var(--accent);
  color: #052e16;
}

.btn-accent:hover:not(:disabled) {
  background: var(--accent-hover);
  color: #fff;
}

.btn-secondary {
  background: var(--bg-elevated);
  color: var(--text);
  border-color: var(--border);
}

.btn-secondary:hover:not(:disabled) {
  border-color: #475569;
  background: #263449;
}

.ip-hero {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  flex-wrap: wrap;
  padding: 1rem 1.15rem;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: 10px;
}

.ip-primary {
  font-size: 1.75rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  word-break: break-all;
}

.badge-row {
  display: flex;
  gap: 0.45rem;
  flex-wrap: wrap;
}

.badge {
  display: inline-flex;
  align-items: center;
  padding: 0.2rem 0.58rem;
  border-radius: 999px;
  font-size: 0.76rem;
  font-weight: 600;
  border: 1px solid var(--border);
  background: var(--bg-elevated);
  color: var(--text-muted);
}

.badge-ok {
  background: var(--ok-bg);
  border-color: var(--ok-border);
  color: var(--ok-text);
}

.badge-warn {
  background: var(--warn-bg);
  border-color: var(--warn-border);
  color: var(--warn-text);
}

.badge-danger {
  background: var(--danger-bg);
  border-color: var(--danger-border);
  color: var(--danger-text);
}

.badge-info {
  background: var(--info-bg);
  border-color: var(--info-border);
  color: var(--info-text);
}

.meta-grid {
  display: grid;
  grid-template-columns: minmax(140px, 200px) 1fr;
  gap: 1rem;
  margin: 1rem 0 0;
}

.meta-grid dt {
  font-size: 0.76rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-muted);
  margin-bottom: 0.2rem;
}

.meta-grid dd {
  margin: 0;
  font-size: 0.86rem;
}

.muted-truncate {
  color: var(--text-muted);
  word-break: break-word;
}

.hint-banner {
  margin: 1rem 0 0;
  padding: 0.7rem 0.95rem;
  border-radius: 8px;
  font-size: 0.85rem;
  background: var(--info-bg);
  border: 1px solid var(--info-border);
  color: var(--info-text);
}

.empty-state {
  padding: 1.15rem;
  text-align: center;
  border: 1px dashed var(--border);
  border-radius: 8px;
  color: var(--text-muted);
  font-size: 0.9rem;
}

.empty-state.subtle {
  margin-top: 0.85rem;
}

.verdict-banner {
  padding: 0.8rem 1rem;
  border-radius: 8px;
  font-size: 0.9rem;
  font-weight: 500;
  margin-bottom: 0.9rem;
  border: 1px solid var(--border);
}

.verdict-ok {
  background: var(--ok-bg);
  border-color: var(--ok-border);
  color: var(--ok-text);
}

.verdict-warn {
  background: var(--warn-bg);
  border-color: var(--warn-border);
  color: var(--warn-text);
}

.verdict-danger {
  background: var(--danger-bg);
  border-color: var(--danger-border);
  color: var(--danger-text);
}

.magnet-box {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 1rem;
}

.magnet-actions {
  display: flex;
  gap: 0.55rem;
  flex-wrap: wrap;
  margin-bottom: 0.85rem;
}

.field-label {
  display: block;
  font-size: 0.76rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-muted);
  margin-bottom: 0.35rem;
}

.magnet-input {
  width: 100%;
  padding: 0.58rem 0.75rem;
  background: var(--bg);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 6px;
  font-size: 0.82rem;
}

.session-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 0.7rem;
  font-size: 0.8rem;
  color: var(--text-muted);
}

.endpoint-pills {
  display: flex;
  gap: 0.4rem;
  flex-wrap: wrap;
}

.listener-bar {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  margin: 0.95rem 0;
  font-size: 0.86rem;
  color: var(--text-muted);
}

.session-expiry {
  margin-left: auto;
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
}

.session-expiry.expiry-soon {
  color: var(--warn-text);
  font-weight: 600;
}

.pulse-dot {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: #64748b;
  flex-shrink: 0;
}

.pulse-dot.active {
  background: var(--accent);
  box-shadow: 0 0 0 rgba(16, 185, 129, 0.6);
  animation: pulse 1.6s infinite;
}

@keyframes pulse {
  0% {
    box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.65);
  }
  70% {
    box-shadow: 0 0 0 8px rgba(16, 185, 129, 0);
  }
  100% {
    box-shadow: 0 0 0 0 rgba(16, 185, 129, 0);
  }
}

.table-wrap {
  overflow-x: auto;
  border: 1px solid var(--border);
  border-radius: 8px;
}

.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.86rem;
}

.data-table th,
.data-table td {
  padding: 0.68rem 0.85rem;
  text-align: left;
  border-bottom: 1px solid var(--border);
}

.data-table th {
  background: var(--bg-elevated);
  color: var(--text-muted);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  font-weight: 600;
}

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

@media (max-width: 640px) {
  .meta-grid {
    grid-template-columns: 1fr;
  }
  .ip-primary {
    font-size: 1.35rem;
  }
}