:root {
  color-scheme: dark;
  --bg: #060a0d;
  --panel: #0d141a;
  --panel-strong: #111b23;
  --line: #1d2b34;
  --line-soft: #14212a;
  --text: #d9e5eb;
  --muted: #7f909b;
  --faint: #4d5d66;
  --accent: #3cb7e8;
  --success: #28d979;
  --warn: #f0b33d;
  --latency-critical: #a78bfa;
  --loss: #94a3b8;
  --danger: #ff5664;
  --shadow: rgba(0, 0, 0, 0.22);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

[data-theme="light"] {
  color-scheme: light;
  --bg: #f4f7f9;
  --panel: #ffffff;
  --panel-strong: #eef4f8;
  --line: #d6e0e7;
  --line-soft: #e9eff3;
  --text: #14222c;
  --muted: #5e707d;
  --faint: #8fa0aa;
  --accent: #0b78b8;
  --success: #0a8d4d;
  --warn: #a66f00;
  --latency-critical: #6d28d9;
  --loss: #475569;
  --danger: #c93445;
  --shadow: rgba(28, 43, 54, 0.08);
}

* {
  box-sizing: border-box;
}

body {
  min-width: 320px;
  margin: 0;
  background: var(--bg);
  color: var(--text);
}

.topbar {
  display: grid;
  grid-template-columns: minmax(190px, 1.2fr) minmax(220px, 1fr) auto auto auto;
  align-items: center;
  gap: 18px;
  min-height: 76px;
  padding: 14px 20px;
  border-bottom: 1px solid var(--line);
  background: var(--panel);
}

.brand {
  display: flex;
  align-items: center;
  min-width: 0;
  gap: 12px;
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  flex: 0 0 42px;
  border-radius: 10px;
  box-shadow: 0 8px 24px var(--shadow);
}

.brand-mark svg {
  display: block;
  width: 42px;
  height: 42px;
}

h1,
h2,
p {
  margin: 0;
}

h1 {
  font-size: 15px;
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: 0;
}

#app-meta,
#group-description,
.target-note,
.target-sub,
.clock span,
.section-stats {
  color: var(--muted);
}

#app-meta {
  margin-top: 3px;
  font-size: 11px;
}

.pulse-line {
  display: flex;
  align-items: center;
  gap: 8px;
  min-width: 0;
  color: var(--muted);
  font-family: "SFMono-Regular", Consolas, monospace;
  font-size: 11px;
  white-space: nowrap;
}

.pulse {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--success);
  box-shadow: 0 0 12px var(--success);
}

.totals {
  display: grid;
  grid-template-columns: repeat(3, minmax(74px, 1fr));
  border-left: 1px solid var(--line);
  border-right: 1px solid var(--line);
}

.totals div {
  display: grid;
  gap: 2px;
  justify-items: center;
  padding: 0 18px;
  border-left: 1px solid var(--line);
}

.totals div:first-child {
  border-left: 0;
}

.totals span {
  font-family: "SFMono-Regular", Consolas, monospace;
  font-size: 20px;
  font-weight: 800;
}

.totals small,
.section-stats,
.target-meta {
  font-family: "SFMono-Regular", Consolas, monospace;
  font-size: 10px;
  letter-spacing: 0;
  text-transform: uppercase;
}

#up-count {
  color: var(--success);
}

#degraded-count {
  color: var(--warn);
}

#down-count {
  color: var(--danger);
}

.clock {
  display: grid;
  justify-items: end;
  min-width: 116px;
  line-height: 1.1;
}

.clock strong {
  font-family: "SFMono-Regular", Consolas, monospace;
  font-size: 21px;
}

.clock span {
  margin-top: 5px;
  font-family: "SFMono-Regular", Consolas, monospace;
  font-size: 10px;
  text-transform: uppercase;
}

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

.theme-button,
.rotation-button {
  min-width: 58px;
  height: 34px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: var(--panel-strong);
  color: var(--text);
  font: 700 11px "SFMono-Regular", Consolas, monospace;
  text-transform: uppercase;
  cursor: pointer;
}

.rotation-button {
  min-width: 34px;
  width: 34px;
  padding: 0;
  font-size: 14px;
}

.rotation-button.is-paused {
  color: var(--warn);
  border-color: color-mix(in srgb, var(--warn) 70%, var(--line));
}

.theme-button:hover,
.rotation-button:hover {
  border-color: var(--accent);
}

.tabs {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding: 8px 20px;
  border-bottom: 1px solid var(--line);
  background: var(--panel);
}

.tab {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-height: 34px;
  padding: 0 12px;
  border: 1px solid var(--line);
  border-radius: 5px;
  background: transparent;
  color: var(--muted);
  font: 700 11px "SFMono-Regular", Consolas, monospace;
  text-transform: uppercase;
  white-space: nowrap;
  cursor: pointer;
}

.tab.active {
  color: var(--text);
  border-color: var(--accent);
  background: color-mix(in srgb, var(--accent) 13%, transparent);
}

.tab .index {
  min-width: 22px;
  padding: 2px 5px;
  border-radius: 4px;
  background: var(--line-soft);
  color: var(--accent);
}

main {
  padding: 0 14px 32px;
}

.section-head {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 16px;
  min-height: 52px;
  padding: 10px 0 6px;
  border-bottom: 1px solid var(--line);
}

h2 {
  font-size: 14px;
  line-height: 1.3;
  text-transform: uppercase;
}

#group-description {
  margin-top: 4px;
  font-size: 11px;
}

.section-stats {
  white-space: nowrap;
}

.target-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0 28px;
}

.target-row {
  display: grid;
  grid-template-columns: 12px minmax(120px, 0.9fr) minmax(120px, 1fr) minmax(120px, 0.9fr) minmax(170px, 1.2fr) 78px 70px;
  align-items: center;
  min-height: 28px;
  gap: 8px;
  border-bottom: 1px solid var(--line-soft);
  color: var(--text);
}

.target-row.is-down {
  background: color-mix(in srgb, var(--danger) 14%, transparent);
}

.target-row.is-degraded {
  background: color-mix(in srgb, var(--warn) 10%, transparent);
}

.target-row.is-degraded.latency-critical {
  background: color-mix(in srgb, var(--latency-critical) 12%, transparent);
}

.target-row.is-degraded.latency-lost {
  background: color-mix(in srgb, var(--loss) 10%, transparent);
}

.target-row.has-recent-failure {
  background: color-mix(in srgb, var(--warn) 8%, transparent);
}

.state-rail {
  width: 100%;
  height: 100%;
  min-height: 28px;
  background: var(--faint);
}

.is-up .state-rail {
  background: var(--success);
}

.is-degraded .state-rail {
  background: var(--warn);
}

.is-degraded.latency-critical .state-rail {
  background: var(--latency-critical);
}

.is-degraded.latency-lost .state-rail {
  background: var(--loss);
}

.is-down .state-rail {
  background: var(--danger);
}

.is-up.has-recent-failure .state-rail {
  background: var(--warn);
}

.target-main,
.target-address,
.target-note {
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.target-main {
  font-size: 12px;
  font-weight: 800;
}

.target-sub {
  margin-top: 2px;
  font-size: 10px;
}

.target-address,
.target-note,
.metric {
  font-family: "SFMono-Regular", Consolas, monospace;
  font-size: 11px;
}

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

.history {
  display: grid;
  grid-template-columns: repeat(var(--history-count), minmax(4px, 1fr));
  align-items: end;
  gap: 2px;
  width: 100%;
  height: 22px;
  min-width: 0;
}

.pip {
  height: var(--pip-height, 4px);
  border-radius: 2px;
  background: var(--success);
}

.pip.level-0 {
  height: var(--pip-height, 22px);
}

.pip.level-2 {
  height: var(--pip-height, 6px);
}

.pip.level-3 {
  height: var(--pip-height, 8px);
}

.pip.level-4 {
  height: var(--pip-height, 10px);
}

.pip.level-5 {
  height: var(--pip-height, 13px);
}

.pip.level-6 {
  height: var(--pip-height, 16px);
}

.pip.level-7 {
  height: var(--pip-height, 19px);
}

.pip.level-8 {
  height: var(--pip-height, 22px);
}

.pip.latency-ok {
  background: var(--success);
  background-image: none;
}

.pip.latency-warn {
  background: var(--warn);
  background-image: none;
}

.pip.latency-critical {
  background: var(--latency-critical);
  background-image: none;
}

.pip.latency-lost {
  background: var(--loss);
  background-image: repeating-linear-gradient(
    135deg,
    color-mix(in srgb, var(--loss) 90%, #000 10%) 0 3px,
    color-mix(in srgb, var(--loss) 35%, transparent) 3px 6px
  );
}

.target-row.is-down .pip.latency-lost {
  background: var(--danger);
  background-image: repeating-linear-gradient(
    135deg,
    color-mix(in srgb, var(--danger) 88%, #000 12%) 0 3px,
    color-mix(in srgb, var(--danger) 45%, transparent) 3px 6px
  );
}

.pip.empty {
  height: 4px;
  background: var(--line);
  opacity: 0.42;
}

.metric {
  justify-self: end;
  white-space: nowrap;
}

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

.metric.rtt.latency-warn strong {
  color: var(--warn);
}

.metric.rtt.latency-critical strong {
  color: var(--latency-critical);
}

.metric.rtt.latency-lost strong {
  color: var(--loss);
}

.target-row.is-down .metric.rtt.latency-lost strong {
  color: var(--danger);
}

.empty-state {
  grid-column: 1 / -1;
  padding: 24px 0;
  color: var(--muted);
  font-size: 13px;
}

@media (max-width: 1180px) {
  .topbar {
    grid-template-columns: 1fr auto;
  }

  .pulse-line,
  .totals,
  .clock {
    grid-column: auto;
  }

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

@media (max-width: 760px) {
  .topbar {
    grid-template-columns: 1fr auto;
    gap: 12px;
    padding: 12px;
  }

  .pulse-line,
  .totals,
  .clock {
    grid-column: 1 / -1;
  }

  .totals {
    border: 1px solid var(--line);
  }

  .totals div {
    padding: 8px;
  }

  .tabs {
    padding: 8px 12px;
  }

  main {
    padding: 0 10px 24px;
  }

  .section-head {
    align-items: start;
    flex-direction: column;
  }

  .target-row {
    grid-template-columns: 10px minmax(0, 1fr) 82px;
    grid-template-areas:
      "rail main rtt"
      "rail addr loss"
      "rail note note"
      "rail hist hist";
    min-height: 74px;
    padding: 6px 0;
  }

  .state-rail {
    grid-area: rail;
    min-height: 74px;
  }

  .target-main {
    grid-area: main;
  }

  .target-address {
    grid-area: addr;
  }

  .target-note {
    grid-area: note;
  }

  .history {
    grid-area: hist;
  }

  .metric.rtt {
    grid-area: rtt;
  }

  .metric.loss {
    grid-area: loss;
  }
}