:root {
  color-scheme: dark;
  --bg: #0c1118;
  --panel: #121a24;
  --panel-soft: #172232;
  --text: #edf3f8;
  --muted: #93a4b5;
  --line: #243244;
  --accent: #7dd3fc;
  --ok: #4ade80;
  --bad: #fb7185;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 22px 32px;
  border-bottom: 1px solid var(--line);
  background: rgba(18, 26, 36, 0.82);
  position: sticky;
  top: 0;
  backdrop-filter: blur(18px);
  z-index: 10;
}

h1,
h2,
p {
  margin: 0;
}

h1 {
  font-size: 26px;
  letter-spacing: -0.025em;
}

.nav {
  display: flex;
  gap: 14px;
  margin-top: 12px;
}

.nav a {
  color: var(--muted);
  font-size: 14px;
  text-decoration: none;
}

.nav a:hover {
  color: var(--accent);
}

h2 {
  font-size: 18px;
  letter-spacing: -0.02em;
}

main {
  width: min(1440px, calc(100vw - 48px));
  margin: 28px auto 48px;
  display: grid;
  gap: 20px;
}

button {
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--panel-soft);
  color: var(--text);
  padding: 9px 13px;
  cursor: pointer;
  transition: border-color 140ms ease, color 140ms ease;
}

button:hover {
  border-color: var(--accent);
}

button:disabled {
  cursor: progress;
  opacity: 0.65;
}

code {
  color: var(--accent);
}

.panel {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 22px;
  box-shadow: 0 18px 45px rgba(0, 0, 0, 0.22);
}

.status-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.status-grid article {
  background: var(--panel-soft);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 18px;
}

.section-header {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  margin-bottom: 18px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--line);
}

.eyebrow {
  color: var(--accent);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.14em;
  margin-bottom: 6px;
  text-transform: uppercase;
}

.muted {
  color: var(--muted);
  line-height: 1.5;
}

.refresh {
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--muted);
}

.status {
  margin-top: 14px;
  font-weight: 700;
}

.status.ok {
  color: var(--ok);
}

.status.bad {
  color: var(--bad);
}

.status.warn {
  color: #facc15;
}

.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 14px;
}

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

.card .label {
  color: var(--muted);
  font-size: 13px;
  margin-bottom: 8px;
}

.card .value {
  font-size: 24px;
  font-weight: 700;
  letter-spacing: -0.025em;
  font-variant-numeric: tabular-nums;
}

.card .register {
  color: var(--muted);
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 12px;
  margin-top: 10px;
}

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

table {
  width: 100%;
  border-collapse: collapse;
  min-width: 0;
}

th,
td {
  border-bottom: 1px solid var(--line);
  padding: 12px 10px;
  text-align: left;
  vertical-align: top;
}

th {
  color: var(--muted);
  font-size: 12px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

td {
  line-height: 1.45;
  font-variant-numeric: tabular-nums;
}

.diagnostics-grid {
  display: grid;
  gap: 28px;
}

.hero {
  display: grid;
  gap: 18px;
}

.hero-head {
  align-items: flex-start;
  display: flex;
  gap: 20px;
  justify-content: space-between;
}

.hero-status {
  font-size: 20px;
  font-weight: 700;
  letter-spacing: -0.01em;
}

.hero-status.ok {
  color: var(--ok);
}

.hero-status.warn {
  color: #facc15;
}

.hero-status.bad {
  color: var(--bad);
}

.hero-stats {
  display: grid;
  gap: 10px;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
}

.stat {
  background: var(--panel-soft);
  border: 1px solid var(--line);
  border-radius: 12px;
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 12px 14px;
}

.stat-label {
  color: var(--muted);
  font-size: 12px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.stat span {
  color: var(--muted);
  font-size: 12px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.stat-value {
  font-size: 22px;
  font-weight: 700;
  letter-spacing: -0.02em;
  font-variant-numeric: tabular-nums;
}

.stat strong {
  font-size: 22px;
  letter-spacing: -0.02em;
  font-variant-numeric: tabular-nums;
}

.stat.warn .stat-value {
  color: #facc15;
}

.stat.bad .stat-value {
  color: var(--bad);
}

.stat.ok .stat-value {
  color: var(--ok);
}

.loading-bar {
  background: var(--panel-soft);
  border: 1px solid var(--line);
  border-radius: 999px;
  height: 6px;
  overflow: hidden;
}

.loading-bar span {
  animation: loading-slide 1.2s ease-in-out infinite;
  background: linear-gradient(90deg, transparent, var(--accent), transparent);
  display: block;
  height: 100%;
  width: 45%;
}

.loading-bar::before {
  animation: loading-slide 1.2s ease-in-out infinite;
  background: linear-gradient(90deg, transparent, var(--accent), transparent);
  content: "";
  display: block;
  height: 100%;
  width: 45%;
}

@keyframes loading-slide {
  from {
    transform: translateX(-110%);
  }

  to {
    transform: translateX(230%);
  }
}

.group {
  display: grid;
  gap: 14px;
}

.group-head {
  align-items: baseline;
  display: flex;
  flex-wrap: wrap;
  gap: 10px 14px;
}

.group-head h2 {
  font-size: 15px;
  letter-spacing: 0.02em;
  text-transform: uppercase;
}

.group-head .pill {
  margin-left: auto;
}

.group-head .chips .pill {
  margin-left: 0;
}

.copy-btn {
  font-size: 12px;
  padding: 4px 10px;
}

.col-gateway .gateway-value {
  font-weight: 600;
  font-size: 15px;
  color: var(--text);
}

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

.col-source > div:first-child {
  font-size: 13px;
}

.col-delta {
  color: var(--muted);
  font-size: 13px;
}

.col-actions {
  text-align: right;
  width: 1%;
  white-space: nowrap;
}

.register-chip {
  background: rgba(125, 211, 252, 0.06);
  border: 1px solid var(--line);
  border-radius: 6px;
  color: var(--accent);
  cursor: pointer;
  display: inline-block;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 11px;
  margin-top: 6px;
  padding: 1px 6px;
  transition: background 140ms ease, border-color 140ms ease;
  user-select: all;
}

.register-chip:hover {
  background: rgba(125, 211, 252, 0.12);
  border-color: rgba(125, 211, 252, 0.45);
}

.register-chip.copied {
  background: rgba(74, 222, 128, 0.15);
  border-color: rgba(74, 222, 128, 0.5);
  color: var(--ok);
}

.register-chip.copied::after {
  content: " ✓";
}

.write-icon {
  background: transparent;
  border: 1px solid transparent;
  border-radius: 6px;
  color: var(--muted);
  cursor: pointer;
  font-size: 13px;
  line-height: 1;
  padding: 2px 6px;
  transition: border-color 140ms ease, color 140ms ease;
}

.write-icon:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.write-row > td {
  background: rgba(125, 211, 252, 0.04);
  padding-top: 12px;
  padding-bottom: 14px;
}

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

.write-label {
  color: var(--muted);
  font-size: 12px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.write-input {
  background: var(--panel-soft);
  border: 1px solid var(--line);
  border-radius: 8px;
  color: var(--text);
  font: inherit;
  font-size: 14px;
  padding: 6px 10px;
  min-width: 140px;
  font-variant-numeric: tabular-nums;
}

.write-input:focus {
  border-color: var(--accent);
  outline: none;
}

.write-actions {
  display: flex;
  gap: 8px;
}

.write-go {
  font-size: 12px;
  padding: 6px 12px;
}

.write-result {
  color: var(--muted);
  font-size: 13px;
}

.write-result.ok {
  color: var(--ok);
}

.write-result.bad {
  color: var(--bad);
}

.comparison-groups {
  display: grid;
  gap: 20px;
}

.comparison-group {
  display: grid;
  gap: 18px;
}

tr.diff td,
tr.gateway_missing td {
  background: rgba(251, 113, 133, 0.05);
}

tr.source_missing td {
  background: rgba(250, 204, 21, 0.04);
}

tr.pending td {
  background: rgba(125, 211, 252, 0.04);
  color: var(--muted);
}

.pill.pending {
  border-color: rgba(125, 211, 252, 0.35);
  color: var(--accent);
}

.device-grid {
  display: grid;
  gap: 10px;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
}

.device {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 12px;
  overflow: hidden;
  transition: border-color 120ms ease;
}

.device.clear {
  background: var(--panel-soft);
}

.device[open] {
  border-color: rgba(125, 211, 252, 0.4);
  grid-column: 1 / -1;
}

.device > summary {
  align-items: center;
  cursor: pointer;
  display: flex;
  gap: 12px;
  justify-content: space-between;
  list-style: none;
  padding: 12px 14px;
}

.device > summary::-webkit-details-marker {
  display: none;
}

.device-title {
  display: flex;
  flex-direction: column;
  gap: 2px;
  min-width: 0;
}

.device-name {
  font-weight: 600;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.device-body {
  border-top: 1px solid var(--line);
  display: grid;
  gap: 12px;
  padding: 14px;
}

.device-error {
  border-top: 1px solid var(--line);
  color: var(--bad);
  font-size: 13px;
  padding: 12px 14px;
}

.attention-list,
.register-list,
.chips {
  display: grid;
  gap: 6px;
  list-style: none;
  margin: 0;
  padding: 0;
}

.attention {
  align-items: flex-start;
  background: rgba(12, 17, 24, 0.4);
  border: 1px solid rgba(125, 211, 252, 0.25);
  border-radius: 10px;
  display: grid;
  gap: 10px;
  grid-template-columns: minmax(0, 1fr) auto;
  padding: 10px 12px;
}

.attention-main {
  display: flex;
  flex-direction: column;
  gap: 2px;
  min-width: 0;
}

.attention-label {
  font-weight: 600;
}

.attention-side {
  align-items: flex-end;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.chips {
  flex-direction: row;
  flex-wrap: wrap;
  display: flex;
  justify-content: flex-end;
}

.chip {
  border: 1px solid var(--line);
  border-radius: 999px;
  font-size: 11px;
  padding: 2px 8px;
}

.chip.warn {
  border-color: rgba(250, 204, 21, 0.4);
  color: #facc15;
}

.chip.bad {
  border-color: rgba(251, 113, 133, 0.4);
  color: var(--bad);
}

.chip.ok {
  border-color: rgba(74, 222, 128, 0.35);
  color: var(--ok);
}

.raw-registers > summary {
  color: var(--muted);
  cursor: pointer;
  font-size: 12px;
  padding: 4px 0;
}

.register-row {
  align-items: center;
  border-top: 1px solid var(--line);
  display: flex;
  gap: 12px;
  justify-content: space-between;
  padding: 8px 0;
}

.register-row:first-child {
  border-top: none;
}

.register-row.clear {
  opacity: 0.65;
}

.register-main {
  display: flex;
  flex-direction: column;
  gap: 2px;
  min-width: 0;
}

.small {
  font-size: 12px;
}

.pill {
  border: 1px solid var(--line);
  border-radius: 999px;
  display: inline-block;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.02em;
  padding: 3px 9px;
  text-transform: uppercase;
  white-space: nowrap;
}

.pill.ok {
  border-color: rgba(74, 222, 128, 0.35);
  color: var(--ok);
}

.pill.warn {
  border-color: rgba(250, 204, 21, 0.4);
  color: #facc15;
}

.pill.bad {
  border-color: rgba(251, 113, 133, 0.4);
  color: var(--bad);
}

@media (max-width: 760px) {
  .topbar,
  .section-header,
  .refresh,
  .hero-head {
    align-items: flex-start;
    flex-direction: column;
  }

  .status-grid {
    grid-template-columns: 1fr;
  }

  .device-grid {
    grid-template-columns: 1fr;
  }
}