:root {
  --display: "Segoe UI Variable Display", "Segoe UI", system-ui, sans-serif;
  --mono: "Cascadia Code", Consolas, monospace;
}

body {
  font-family: "Segoe UI Variable Text", "Segoe UI", system-ui, sans-serif;
}

button:focus-visible,
a:focus-visible,
input:focus-visible,
select:focus-visible,
summary:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
}

.mode-nav {
  grid-template-columns: repeat(4, 1fr);
}

.button[hidden] {
  display: none;
}

.live-check-section {
  position: relative;
}

.live-check-section::before {
  content: "";
  position: absolute;
  z-index: -1;
  inset: 0;
  background:
    linear-gradient(90deg, rgba(93, 227, 255, .035) 1px, transparent 1px),
    linear-gradient(rgba(93, 227, 255, .035) 1px, transparent 1px);
  background-size: 44px 44px;
  mask-image: linear-gradient(to bottom, transparent, #000 12%, #000 88%, transparent);
}

.comparison-section::before {
  left: 0;
  right: 0;
  width: auto;
  transform: none;
}

.live-grid {
  display: grid;
  grid-template-columns: minmax(340px, .82fr) minmax(0, 1.18fr);
  gap: 20px;
  align-items: start;
}

.live-setup,
.live-console {
  min-height: 600px;
}

.live-setup h3,
.live-console h3 {
  margin: 22px 0 8px;
  font: 760 31px/1.05 var(--display);
  letter-spacing: -.035em;
}

.live-setup > p,
.live-console > p {
  margin: 0 0 24px;
  color: var(--muted);
  font-size: 14px;
}

.beta-strip,
.console-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding-bottom: 13px;
  border-bottom: 1px solid var(--line);
  font: 600 10px var(--mono);
  letter-spacing: .08em;
  text-transform: uppercase;
}

.beta-strip span,
.console-head span {
  color: var(--cyan);
}

.beta-strip strong,
.console-head b {
  color: var(--muted);
  font-weight: 500;
}

.local-field {
  display: block;
  margin: 0 0 24px;
  color: var(--muted);
  font-size: 12px;
}

.local-field input {
  display: block;
  width: 100%;
  margin-top: 6px;
  border: 1px solid var(--line);
  border-radius: 0;
  background: #061321;
  color: var(--ink);
  padding: 11px;
}

.local-field small {
  display: block;
  margin-top: 4px;
  color: var(--muted);
  font-weight: 400;
  line-height: 1.45;
}

.test-consent {
  display: grid;
  grid-template-columns: 22px 1fr;
  gap: 11px;
  margin: 6px 0 22px;
  padding: 15px;
  border: 1px solid rgba(255, 198, 109, .26);
  background: rgba(255, 198, 109, .055);
  color: var(--muted);
  font-size: 12px;
  cursor: pointer;
}

.test-consent input {
  width: 17px;
  height: 17px;
  margin: 2px 0 0;
  accent-color: var(--cyan);
}

.test-consent strong {
  display: block;
  color: var(--ink);
  font-size: 13px;
}

.live-console {
  background: #06131f;
  border-color: rgba(93, 227, 255, .3);
}

.live-console[data-running="true"] .console-head span {
  color: var(--green);
}

.live-console progress {
  width: 100%;
  height: 8px;
  margin: 4px 0 30px;
  border: 0;
  border-radius: 0;
  overflow: hidden;
  background: rgba(255, 255, 255, .055);
  color: var(--cyan);
  accent-color: var(--cyan);
}

.live-console progress::-webkit-progress-bar {
  background: rgba(255, 255, 255, .055);
}

.live-console progress::-webkit-progress-value {
  background: linear-gradient(90deg, var(--cyan), var(--green));
}

.live-console progress::-moz-progress-bar {
  background: linear-gradient(90deg, var(--cyan), var(--green));
}

.signal-track {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  margin: 0;
  padding: 1px;
  list-style: none;
  background: var(--line);
}

.signal-track li {
  position: relative;
  min-height: 115px;
  padding: 14px 13px 18px;
  background: #081827;
  transition: background-color .2s ease, box-shadow .2s ease;
}

.signal-track li > span {
  color: var(--muted);
  font: 600 10px var(--mono);
}

.signal-track li strong,
.signal-track li small {
  display: block;
}

.signal-track li strong {
  margin-top: 20px;
  font-size: 13px;
}

.signal-track li small {
  margin-top: 3px;
  color: var(--muted);
  font-size: 10px;
}

.signal-track li i {
  position: absolute;
  right: 13px;
  top: 14px;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: #314255;
}

.signal-track li.active {
  z-index: 1;
  background: rgba(93, 227, 255, .09);
  box-shadow: inset 0 -3px 0 var(--cyan);
}

.signal-track li.active i {
  background: var(--cyan);
  box-shadow: 0 0 18px var(--cyan);
}

.signal-track li.complete i {
  background: var(--green);
}

.signal-track li.error i {
  background: var(--red);
}

.network-test-output {
  margin-top: 22px;
  padding-top: 22px;
  border-top: 1px solid var(--line);
}

.network-test-output.empty {
  color: var(--muted);
}

.network-test-output > p:first-child {
  margin-top: 0;
}

.network-metrics,
.network-comparison {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 8px;
  margin: 16px 0;
}

.network-metric {
  min-width: 0;
  padding: 13px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, .018);
}

.network-metric span,
.network-metric small {
  display: block;
  color: var(--muted);
  font: 500 9px var(--mono);
  text-transform: uppercase;
  letter-spacing: .055em;
}

.network-metric small {
  margin-top: 7px;
  font: 400 11px/1.45 "Segoe UI Variable Text", "Segoe UI", system-ui, sans-serif;
  text-transform: none;
  letter-spacing: 0;
}

.network-metric strong {
  display: block;
  margin: 6px 0 2px;
  font: 730 23px var(--display);
  letter-spacing: -.03em;
}

.network-signal {
  margin: 16px 0;
  padding: 20px;
  border-left: 3px solid var(--amber);
  background: rgba(255, 198, 109, .06);
}

.network-test-output > .network-signal:first-child {
  margin-top: 0;
}

.network-signal.queueing {
  border-color: var(--red);
  background: rgba(255, 126, 131, .06);
}

.network-signal.clear {
  border-color: var(--green);
  background: rgba(129, 243, 174, .06);
}

.network-signal h4,
.fix-action h4,
.retest-summary h4 {
  margin: 0 0 5px;
  font: 730 20px var(--display);
}

.network-signal h4,
.retest-summary h4 {
  font-size: 25px;
  line-height: 1.08;
}

.network-signal p,
.fix-action p,
.retest-summary p {
  margin: 0;
  color: var(--muted);
  font-size: 13px;
}

.fix-action,
.retest-summary {
  margin-top: 13px;
  padding: 16px;
  border: 1px solid rgba(93, 227, 255, .25);
  background: rgba(93, 227, 255, .045);
}

.retest-summary.clear {
  border-left: 3px solid var(--green);
  background: rgba(129, 243, 174, .06);
}

.retest-summary.queueing {
  border-left: 3px solid var(--red);
  background: rgba(255, 126, 131, .06);
}

.retest-summary.wireless,
.retest-summary.inconclusive {
  border-left: 3px solid var(--amber);
  background: rgba(255, 198, 109, .06);
}

.fix-steps {
  display: grid;
  gap: 9px;
  margin: 15px 0 0;
  padding: 0;
  list-style: none;
}

.fix-steps li {
  display: grid;
  grid-template-columns: 28px minmax(0, 1fr);
  gap: 10px;
  align-items: start;
}

.fix-steps li > span {
  display: grid;
  place-items: center;
  width: 28px;
  height: 28px;
  border: 1px solid rgba(93, 227, 255, .3);
  color: var(--cyan);
  font: 700 11px var(--mono);
}

.fix-steps p {
  margin: 3px 0 0;
  color: var(--ink);
  font-size: 13px;
  line-height: 1.45;
}

.network-details {
  margin-top: 14px;
  border: 1px solid var(--line);
  background: rgba(0, 0, 0, .1);
}

.network-details > summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 14px 15px;
  cursor: pointer;
  list-style: none;
  color: var(--ink);
  font-weight: 700;
}

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

.network-details > summary::after {
  content: "+";
  color: var(--cyan);
  font: 500 20px var(--mono);
}

.network-details[open] > summary {
  border-bottom: 1px solid var(--line);
}

.network-details[open] > summary::after {
  content: "−";
}

.network-details > summary span {
  flex: 1;
}

.network-details > summary small {
  color: var(--muted);
  font: 500 9px var(--mono);
  text-transform: uppercase;
  letter-spacing: .06em;
}

.network-details > .network-metrics,
.network-details > .table-scroll,
.network-details > .metric-key,
.network-details > .technical-limit {
  margin-right: 15px;
  margin-left: 15px;
}

.metric-key,
.technical-limit {
  color: var(--muted);
  font-size: 12px;
}

.metric-key strong {
  color: var(--ink);
}

.technical-limit {
  padding-top: 12px;
  border-top: 1px solid var(--line);
}

.fix-action .actions,
.retest-summary .actions {
  margin-top: 14px;
}

.fix-action .button,
.retest-summary .button {
  min-height: 40px;
  padding-inline: 14px;
  font-size: 12px;
}

.game-confirmation {
  margin-top: 14px;
  padding-top: 14px;
  border-top: 1px solid var(--line);
}

.fix-loop-table {
  width: 100%;
  border-collapse: collapse;
  margin: 15px 0 18px;
  font-size: 12px;
}

.fix-loop-table caption {
  padding: 0 0 10px;
  color: var(--muted);
  text-align: left;
  font: 500 10px var(--mono);
  text-transform: uppercase;
  letter-spacing: .06em;
}

.fix-loop-table th,
.fix-loop-table td {
  padding: 10px 9px;
  border: 1px solid var(--line);
  text-align: left;
}

.fix-loop-table thead th {
  color: var(--muted);
  font: 500 9px var(--mono);
  text-transform: uppercase;
}

.fix-loop-table tbody th {
  color: var(--ink);
  font-weight: 650;
}

.game-confirmation legend {
  font-size: 13px;
}

.game-confirmation .option-grid {
  grid-template-columns: repeat(3, 1fr);
}

.game-confirmation .option label {
  padding: 10px;
  text-align: center;
}

.measurement-boundary {
  margin-top: 16px;
  padding: 14px 17px;
  border: 1px solid var(--line);
  color: var(--muted);
  font-size: 12px;
}

.measurement-boundary strong {
  color: var(--ink);
}

.measurement-boundary details,
.field-help {
  margin-top: 10px;
  color: var(--muted);
  font-size: 12px;
}

.measurement-boundary summary,
.field-help summary {
  width: fit-content;
  color: var(--cyan);
  cursor: pointer;
  font-weight: 700;
}

.measurement-boundary details p,
.field-help p {
  margin: 9px 0 0;
}

.comparison-help {
  margin: 0;
  padding: 0 24px 18px;
}

.metric-result small {
  display: block;
  margin-top: 9px;
  color: var(--muted);
  font-size: 11px;
  line-height: 1.45;
}

@media (max-width: 980px) {
  .live-grid {
    grid-template-columns: 1fr;
  }

  .live-setup,
  .live-console {
    min-height: 0;
  }
}

@media (max-width: 700px) {
  .mode-nav {
    display: flex;
    overflow-x: auto;
    overscroll-behavior-x: contain;
    scrollbar-width: none;
  }

  .mode-nav::-webkit-scrollbar {
    display: none;
  }

  .mode-nav a,
  .mode-nav a:nth-child(odd) {
    flex: 0 0 auto;
    min-height: 44px;
    padding: 10px 13px;
    border-bottom: 0;
    border-right: 1px solid var(--line);
    white-space: nowrap;
  }

  .mode-nav a:last-child {
    border-right: 0;
  }

  .signal-track {
    grid-template-columns: 1fr 1fr;
  }

  .signal-track li {
    min-height: 94px;
  }

  .network-metrics,
  .network-comparison {
    grid-template-columns: 1fr;
  }

  .game-confirmation .option-grid {
    grid-template-columns: 1fr;
  }
}

@media (prefers-reduced-motion: reduce) {
  .signal-track li {
    transition: none;
  }
}