:root {
  color-scheme: dark;
  --bg: #050505;
  --text: #f2f2ee;
  --panel: #0b0b0a;
  --panel2: #11110f;
  --line: #42423d;
  --line-soft: #2b2b28;
  --muted: #82827a;
  --soft: #babaae;
  --accent: #f2f2ee;
  --accent-text: #050505;
  --warn: #d8d8ca;
  --danger: #f2f2ee;
  --ok: #f2f2ee;
  --grid: rgba(255,255,255,.035);
  --aqua: var(--accent);
  --blue: var(--accent);
}

:root[data-theme="light"] {
  color-scheme: light;
  --bg: #f2f2ee;
  --text: #050505;
  --panel: #ffffff;
  --panel2: #eeeee7;
  --line: #56564e;
  --line-soft: #c8c8bf;
  --muted: #6c6c64;
  --soft: #33332f;
  --accent: #050505;
  --accent-text: #f2f2ee;
  --warn: #050505;
  --danger: #050505;
  --ok: #050505;
  --grid: rgba(0,0,0,.055);
}

* { box-sizing: border-box; }

body {
  margin: 0;
  min-height: 100vh;
  background:
    linear-gradient(var(--grid) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid) 1px, transparent 1px),
    var(--bg);
  background-size: 24px 24px;
  color: var(--text);
  font: 14px "JetBrains Mono", "IBM Plex Mono", ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}

main {
  max-width: 1320px;
  margin: auto;
  padding: 0 28px 55px;
}

.topbar {
  min-height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  border-bottom: 1px solid var(--line);
}

.brand {
  color: var(--text);
  text-decoration: none;
  font-size: 18px;
  font-weight: 900;
  letter-spacing: .08em;
  white-space: nowrap;
}

.brand span { color: inherit; }
.brand small {
  margin-left: 8px;
  padding: 4px 6px;
  border: 1px solid var(--line);
  color: var(--muted);
  font-size: 8px;
  vertical-align: 3px;
}

.topbar nav {
  display: flex;
  align-self: stretch;
  gap: 22px;
}

.topbar nav a {
  display: flex;
  align-items: center;
  color: var(--muted);
  text-decoration: none;
  font-size: 12px;
  border-bottom: 2px solid transparent;
}

.topbar nav a.active {
  color: var(--text);
  border-color: var(--accent);
}

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

.state,
.counter,
.icon-button {
  border: 1px solid var(--line);
  border-radius: 0;
  background: var(--panel);
  color: var(--soft);
  min-height: 34px;
}

.state {
  padding: 8px 12px;
  color: var(--text);
  font-size: 10px;
  letter-spacing: .08em;
}

.state.error {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--accent-text);
}

button {
  border: 1px solid var(--accent);
  border-radius: 0;
  padding: 11px 16px;
  background: var(--accent);
  color: var(--accent-text);
  font: inherit;
  font-weight: 900;
  cursor: pointer;
  text-transform: uppercase;
}

button:hover { outline: 1px solid var(--accent); }
button:disabled { opacity: .45; cursor: wait; }

.icon-button {
  width: 36px;
  padding: 0;
  background: transparent;
  color: var(--text);
  font-size: 14px;
}

.intro {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 20px;
  padding: 42px 0 28px;
}

.eyebrow,
small {
  color: var(--muted);
  font-size: 9px;
  letter-spacing: .12em;
  text-transform: uppercase;
}

.intro h1 {
  max-width: 900px;
  font-size: clamp(34px, 5vw, 72px);
  line-height: .9;
  font-weight: 900;
  letter-spacing: 0;
  margin: 8px 0;
  text-transform: uppercase;
}

.intro p {
  max-width: 760px;
  margin: 0;
  color: var(--soft);
  line-height: 1.55;
}

.sync {
  text-align: right;
  display: grid;
  gap: 4px;
}

.sync strong { font-size: 13px; }
.sync span { color: var(--muted); font-size: 10px; }

.empty-banner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding: 16px;
  margin-bottom: 12px;
  border: 1px solid var(--line);
  background: var(--panel);
}

.empty-banner div { display: grid; gap: 4px; }
.empty-banner span { color: var(--muted); font-size: 12px; }
.empty-code { color: var(--text) !important; }

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

.kpi-grid article,
.panel {
  position: relative;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 0;
}

.kpi-grid article {
  min-height: 135px;
  padding: 18px;
}

.kpi-grid small { display: block; }
.kpi-grid strong {
  display: block;
  margin-top: 13px;
  font-size: 32px;
  line-height: 1;
  font-weight: 900;
}

.kpi-grid em {
  display: block;
  margin-top: 7px;
  color: var(--muted);
  font-size: 10px;
  font-style: normal;
}

.kpi-icon {
  position: absolute;
  right: 16px;
  top: 14px;
  color: var(--muted);
  font-size: 17px;
}

.health-strip {
  display: grid;
  grid-template-columns: 2fr repeat(4, 1fr) auto;
  align-items: center;
  gap: 18px;
  margin: 10px 0;
  padding: 14px 16px;
  background: var(--panel);
  border: 1px solid var(--line);
}

.health-strip > div { display: grid; gap: 5px; }
.health-strip > div:first-child {
  grid-template-columns: auto 1fr;
  align-items: center;
}

.health-strip > div:first-child small,
.health-strip > div:first-child strong { grid-column: 2; }
.health-strip strong { font-size: 15px; overflow-wrap: anywhere; }

.pulse {
  grid-row: 1 / 3;
  width: 9px;
  height: 9px;
  background: var(--accent);
}

button.secondary {
  background: transparent;
  border: 1px solid var(--line);
  color: var(--text);
  font-size: 11px;
}

.panel {
  padding: 18px;
}

.sessions-panel,
.integrity-panel { margin-top: 10px; }

.panel-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 15px;
}

.panel-head h2 {
  font-size: 17px;
  font-weight: 900;
  margin: 5px 0 0;
  text-transform: uppercase;
}

.panel-head > span { color: var(--muted); font-size: 10px; }
.counter { display: inline-flex; align-items: center; padding: 5px 8px; }
.table-wrap { overflow: auto; }
table { width: 100%; border-collapse: collapse; min-width: 900px; }

th {
  text-align: left;
  color: var(--muted);
  font-size: 9px;
  letter-spacing: .1em;
  text-transform: uppercase;
  font-weight: 800;
  padding: 9px 11px;
  border-bottom: 1px solid var(--line);
}

td {
  padding: 13px 11px;
  border-bottom: 1px solid var(--line-soft);
  color: var(--soft);
  font-size: 12px;
}

tbody tr:last-child td { border-bottom: 0; }
.session-id { color: var(--muted); font-size: 10px; }

.tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 8px;
  border: 1px solid var(--line);
  color: var(--text);
  font-size: 9px;
  text-transform: uppercase;
}

.tag:before {
  content: "";
  width: 5px;
  height: 5px;
  background: currentColor;
}

.tag.live,
.tag.bad {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--accent-text);
}

.metric-sub {
  display: block;
  margin-top: 3px;
  color: var(--muted);
  font-size: 9px;
}

.table-empty {
  text-align: center !important;
  color: var(--muted) !important;
  padding: 28px !important;
}

.split {
  display: grid;
  grid-template-columns: 1.1fr .9fr;
  gap: 10px;
  margin-top: 10px;
}

.rank-row {
  display: grid;
  grid-template-columns: 1.2fr repeat(4, 1fr);
  align-items: center;
  gap: 10px;
  padding: 12px 2px;
  border-top: 1px solid var(--line-soft);
}

.rank-row:first-of-type { border-top: 0; }
.rank-row strong { font-size: 12px; }
.rank-row span { color: var(--soft); font-size: 11px; }
.rank-row small { display: block; margin-bottom: 3px; }

.bar {
  height: 4px;
  background: var(--line-soft);
  margin-top: 7px;
  overflow: hidden;
}

.bar i {
  display: block;
  height: 100%;
  background: var(--accent);
}

.error-row {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 8px;
  padding: 12px 2px;
  border-top: 1px solid var(--line-soft);
}

.error-row:first-of-type { border-top: 0; }
.error-row strong { font-size: 11px; color: var(--text); }
.error-row span { color: var(--text); font-size: 12px; font-weight: 900; }
.error-row small { display: block; margin-top: 4px; text-transform: none; letter-spacing: 0; }

.integrity-row {
  display: grid;
  grid-template-columns: 120px 1fr auto;
  gap: 12px;
  align-items: center;
  padding: 11px 2px;
  border-top: 1px solid var(--line-soft);
}

.integrity-row:first-of-type { border-top: 0; }
.integrity-row code { color: var(--muted); font-size: 9px; }
.integrity-row strong { font-size: 11px; }
.integrity-row small { display: block; margin-top: 3px; text-transform: none; letter-spacing: 0; }
.integrity-row .counts { font-size: 10px; color: var(--muted); }

.transport-intelligence-panel,
.field-tests-panel { margin-top: 10px; }

.tri-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
}

.panel-subhead {
  min-height: 28px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  border-bottom: 1px solid var(--line-soft);
  margin-bottom: 4px;
}

.panel-subhead span {
  color: var(--muted);
  font-size: 10px;
}

.ti-row,
.field-test-row {
  display: grid;
  align-items: center;
  gap: 10px;
  padding: 11px 0;
  border-top: 1px solid var(--line-soft);
}

.ti-row { grid-template-columns: minmax(130px, 1.2fr) repeat(3, minmax(88px, 1fr)); }
.field-test-row { grid-template-columns: minmax(230px, 1.4fr) repeat(3, minmax(110px, 1fr)) minmax(190px, 1.2fr); }
.ti-row:first-of-type,
.field-test-row:first-of-type { border-top: 0; }
.ti-row strong,
.field-test-row strong { display: block; font-size: 11px; overflow-wrap: anywhere; }
.ti-row small,
.field-test-row small,
.ti-row em,
.field-test-row em {
  display: block;
  margin-top: 3px;
  color: var(--muted);
  font-size: 9px;
  font-style: normal;
  letter-spacing: 0;
  text-transform: none;
}
.ti-row span,
.field-test-row span { font-size: 11px; color: var(--text); overflow-wrap: anywhere; }
.field-test-row .acceptance {
  border-left: 1px solid var(--line-soft);
  padding-left: 10px;
}

.login-panel {
  max-width: 480px;
  margin: auto;
}

.login-form {
  display: grid;
  gap: 14px;
}

.login-form input {
  height: 44px;
  padding: 0 12px;
  background: var(--panel2);
  border: 1px solid var(--line);
  border-radius: 0;
  color: var(--text);
  font: inherit;
}

.login-form span {
  color: var(--text);
  font-size: 12px;
}

footer {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  padding: 18px 2px;
  color: var(--muted);
  font-size: 10px;
}

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

@media (max-width: 1000px) {
  .kpi-grid { grid-template-columns: repeat(2, 1fr); }
  .health-strip { grid-template-columns: repeat(3, 1fr); }
  .health-strip > div:first-child { grid-column: span 2; }
  .split,
  .tri-grid { grid-template-columns: 1fr; }
}

@media (max-width: 760px) {
  main { padding: 0 14px 35px; }
  .topbar { align-items: flex-start; flex-direction: column; padding: 14px 0; }
  .topbar nav { display: none; }
  .intro { align-items: flex-start; flex-direction: column; gap: 18px; }
  .sync { text-align: left; }
  .kpi-grid,
  .health-strip { grid-template-columns: 1fr 1fr; }
  .health-strip > div:first-child,
  .health-strip button { grid-column: span 2; }
  .ti-row,
  .field-test-row { grid-template-columns: 1fr 1fr; }
  .field-test-row .acceptance { border-left: 0; padding-left: 0; }
}

@media (max-width: 460px) {
  .kpi-grid,
  .health-strip { grid-template-columns: 1fr; }
  .health-strip > div:first-child,
  .health-strip button { grid-column: auto; }
  .ti-row,
  .field-test-row { grid-template-columns: 1fr; }
  .state { display: none; }
  footer { flex-direction: column; }
}