:root {
  color-scheme: light;
  --bg: #f4f6f8;
  --panel: #ffffff;
  --text: #17191d;
  --muted: #626a73;
  --line: #d9dee5;
  --line-strong: #c8d0da;
  --accent: #0f6f61;
  --accent-soft: #e7f2ef;
  --warn: #936f00;
  --warn-soft: #fff7db;
  --danger: #a3362f;
  --danger-soft: #fff0ee;
  --shadow: 0 12px 30px rgb(24 38 54 / 0.08);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 14px;
  line-height: 1.35;
  -webkit-font-smoothing: antialiased;
}

[hidden] {
  display: none !important;
}

button,
input,
select {
  font: inherit;
}

button {
  min-height: 34px;
  border: 1px solid #0b5f54;
  background: var(--accent);
  color: #fff;
  padding: 0 12px;
  border-radius: 6px;
  cursor: pointer;
  font-weight: 650;
}

button.secondary {
  background: #fff;
  color: var(--accent);
}

button.danger {
  background: var(--danger);
  border-color: var(--danger);
}

button:disabled {
  cursor: wait;
  opacity: 0.6;
}

input,
select {
  min-height: 36px;
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 0 10px;
  background: #fff;
  color: var(--text);
  width: 100%;
}

.shell {
  width: min(1240px, calc(100vw - 32px));
  margin: 0 auto;
  padding: 24px 0 40px;
}

.topbar {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 20px;
  align-items: center;
  margin-bottom: 18px;
}

h1,
h2,
p {
  margin: 0;
}

h1 {
  font-size: 24px;
  line-height: 1.15;
}

h2 {
  font-size: 15px;
  line-height: 1.2;
}

#statusLine {
  margin-top: 6px;
  color: var(--muted);
}

.top-actions,
.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  justify-content: flex-end;
}

.panel {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 18px;
  margin-bottom: 16px;
  box-shadow: var(--shadow);
}

.panel-wide {
  grid-column: 1 / -1;
}

.panel-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 14px;
}

.panel-note {
  margin-top: 5px;
  color: var(--muted);
  font-size: 12px;
  line-height: 1.35;
}

.panel-actions {
  display: flex;
  align-items: center;
  gap: 8px;
}

.tag {
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 4px 10px;
  color: var(--muted);
  font-size: 12px;
}

.auth-grid {
  display: grid;
  grid-template-columns: 1fr 1fr auto auto;
  gap: 8px;
}

.auth-grid.single-action {
  grid-template-columns: minmax(160px, 280px);
}

.dashboard {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
  gap: 16px;
}

.hidden {
  display: none;
}

.list {
  display: grid;
  gap: 8px;
}

.device-card,
.ota-card,
.message-card,
.capture-card,
.handoff-card,
.op-card {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 12px;
  align-items: center;
  min-width: 0;
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
}

.device-card,
.ota-card,
.message-card,
.handoff-card,
.op-card {
  position: relative;
}

.device-card::before,
.ota-card.active::before,
.handoff-card.active::before,
.handoff-card.ok::before,
.handoff-card.warn::before,
.handoff-card.danger::before,
.op-card.ok::before,
.op-card.active::before,
.op-card.warn::before,
.op-card.danger::before {
  content: "";
  position: absolute;
  inset: 12px auto 12px 0;
  width: 3px;
  border-radius: 0 3px 3px 0;
  background: var(--accent);
}

.device-card.stale::before,
.device-card.new::before,
.handoff-card.warn::before,
.op-card.warn::before,
.op-card.active::before {
  background: var(--warn);
}

.handoff-card.danger::before,
.op-card.danger::before {
  background: var(--danger);
}

.capture-card {
  padding: 10px 0;
  border-width: 1px 0 0;
  border-radius: 0;
}

.capture-card:first-child {
  border-top: 0;
  padding-top: 0;
}

.device-main,
.op-main,
.message-card > div,
.ota-card > div,
.capture-card > div {
  min-width: 0;
}

.device-card {
  grid-template-columns: minmax(0, 1fr) minmax(260px, auto);
  align-items: stretch;
}

.handoff-card {
  grid-template-columns: 1fr;
  align-items: stretch;
}

.handoff-subhead {
  display: flex;
  align-items: center;
  gap: 8px;
  margin: 12px 0 8px;
  color: var(--muted);
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
}

.device-title,
.ota-title,
.capture-title {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin-bottom: 8px;
}

.device-title,
.ota-title,
.message-head,
.handoff-title,
.op-title {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-start;
  gap: 8px;
  justify-content: space-between;
}

.device-title strong,
.ota-title strong,
.capture-title strong {
  font-size: 16px;
  line-height: 1.2;
}

.title-stack {
  min-width: 0;
}

.title-stack strong,
.title-stack span {
  display: block;
  overflow-wrap: anywhere;
}

.title-stack span {
  margin-top: 2px;
  color: var(--muted);
  font-size: 12px;
}

.badge-row {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  justify-content: flex-end;
}

.summary-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 10px 16px;
}

.ops-list {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.op-card {
  grid-template-columns: 1fr;
  align-items: stretch;
}

.op-metadata {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 8px;
  margin-top: 8px;
}

.summary-item {
  min-width: 0;
  padding-top: 8px;
  border-top: 1px solid #edf0f3;
}

.summary-label {
  display: block;
  color: var(--muted);
  font-size: 11px;
  line-height: 1.2;
}

.summary-value {
  display: block;
  margin-top: 3px;
  overflow-wrap: anywhere;
  font-size: 13px;
  font-weight: 650;
  line-height: 1.25;
}

.meta {
  color: var(--muted);
  font-size: 12px;
  margin-top: 4px;
  overflow-wrap: anywhere;
}

.impact-note {
  margin-top: -2px;
  color: var(--muted);
  font-size: 12px;
  line-height: 1.35;
}

.impact-note.warn {
  color: var(--warn);
}

.message-body {
  display: block;
  overflow-wrap: anywhere;
  font-size: 14px;
  line-height: 1.35;
}

.message-details {
  margin-top: 6px;
}

.message-details summary {
  color: var(--accent);
  cursor: pointer;
  font-size: 12px;
}

.message-full {
  margin-top: 8px;
  white-space: pre-wrap;
  overflow-wrap: anywhere;
  max-width: 72ch;
}

.list-footer {
  padding: 8px 2px;
  color: var(--muted);
  font-size: 12px;
  text-align: center;
}

.dot {
  display: inline-block;
  width: 8px;
  height: 8px;
  margin-right: 4px;
  border-radius: 50%;
  background: var(--warn);
}

.dot.ok {
  background: var(--accent);
}

.pill,
.status-pill {
  display: inline-block;
  min-width: 64px;
  margin-right: 4px;
  padding: 2px 6px;
  border-radius: 999px;
  background: #eef1f4;
  color: var(--muted);
  text-align: center;
  font-size: 12px;
}

.pill.pending {
  background: var(--accent-soft);
  color: var(--accent);
}

.status-pill.ok {
  background: var(--accent-soft);
  color: var(--accent);
}

.status-pill.warn {
  background: var(--warn-soft);
  color: var(--warn);
}

.status-pill.active {
  background: var(--warn-soft);
  color: var(--warn);
}

.status-pill.danger {
  background: var(--danger-soft);
  color: var(--danger);
}

.device-actions {
  display: grid;
  grid-template-columns: repeat(2, minmax(110px, 1fr));
  align-content: start;
  gap: 8px;
}

.device-actions button {
  width: 100%;
}

.control-grid {
  display: grid;
  grid-template-columns: minmax(160px, 1fr) minmax(120px, 180px);
  gap: 10px;
  align-items: end;
  margin-bottom: 14px;
}

.wifi-grid {
  grid-template-columns: minmax(160px, 1fr) minmax(180px, 1fr) minmax(180px, 1fr);
}

.control-grid label {
  color: var(--muted);
  font-size: 12px;
  line-height: 1.4;
}

.check-row {
  display: flex;
  align-items: center;
  gap: 8px;
  min-height: 36px;
}

.check-row input {
  width: auto;
  min-height: 0;
}

.control-actions {
  display: flex;
  gap: 8px;
  justify-content: flex-end;
}

.control-actions button {
  min-width: 132px;
}

.capture-list {
  max-height: 260px;
  overflow: auto;
}

.capture-thumb {
  width: 112px;
  height: 84px;
  border: 1px solid var(--line);
  border-radius: 6px;
  object-fit: cover;
  background: #eef1f4;
}

.ota-card {
  grid-template-columns: minmax(0, 1fr) minmax(160px, auto);
}

.ota-version-line {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 8px;
  margin-top: 8px;
}

.ota-version-line strong {
  font-size: 15px;
}

.ota-version-line span {
  color: var(--muted);
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 12px;
}

.ota-metadata {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 8px;
  margin-top: 6px;
}

.ota-changelog {
  margin-top: 8px;
  color: var(--muted);
  font-size: 12px;
  line-height: 1.35;
  overflow-wrap: anywhere;
}

.handoff-metadata {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 8px;
  margin-top: 8px;
}

.empty,
.error {
  color: var(--muted);
  padding: 8px 0;
}

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

@media (max-width: 760px) {
  .topbar,
  .auth-grid,
  .auth-grid.single-action,
  .dashboard,
  .device-card,
  .ota-card,
  .message-card,
  .op-card,
  .capture-card,
  .control-grid,
  .wifi-grid,
  .summary-grid,
  .ota-metadata,
  .handoff-metadata,
  .op-metadata,
  .ops-list {
    grid-template-columns: 1fr;
  }

  .top-actions,
  .actions,
  .device-actions,
  .control-actions,
  .panel-actions {
    justify-content: flex-start;
  }

  .badge-row {
    justify-content: flex-start;
  }
}