:root {
  --bg: #0c0e10;
  --panel: #15181c;
  --panel-deep: #101215;
  --border: #252a30;
  --border-strong: #3a4149;
  --text: #e8e6e3;
  --muted: #98a0a8;
  --muted-strong: #b5bbc1;
  --alert: #ff5c38;
  --warn: #e8b04b;
  --stable: #3ecfa0;
  --black: #050607;
  --alert-soft: rgb(255 92 56 / 0.12);
  --warn-soft: rgb(232 176 75 / 0.13);
  --stable-soft: rgb(62 207 160 / 0.12);
  --text-soft: rgb(232 230 227 / 0.06);
  --focus: rgb(255 92 56 / 0.35);
  --shadow: rgb(0 0 0 / 0.28);
  --font-ui: -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
  --font-mono: "SFMono-Regular", "Cascadia Code", "Roboto Mono", Consolas, monospace;
  --max-width: 1540px;
}

* {
  box-sizing: border-box;
}

html {
  background: var(--bg);
  color-scheme: dark;
  scroll-behavior: smooth;
}

body {
  min-width: 0;
  margin: 0;
  padding-left: env(safe-area-inset-left);
  padding-right: env(safe-area-inset-right);
  overflow-x: hidden;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-ui);
  font-size: 16px;
  font-weight: 400;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  -webkit-tap-highlight-color: var(--focus);
}

button,
input,
select {
  min-height: 44px;
  border: 1px solid var(--border-strong);
  border-radius: 3px;
  background: var(--panel-deep);
  color: var(--text);
  font: inherit;
}

button,
select,
a {
  cursor: pointer;
  touch-action: manipulation;
}

button:hover,
select:hover,
input:hover {
  border-color: var(--muted);
}

button:focus-visible,
input:focus-visible,
select:focus-visible,
a:focus-visible,
[tabindex="0"]:focus-visible {
  outline: 2px solid var(--alert);
  outline-offset: 3px;
  box-shadow: 0 0 0 4px var(--focus);
}

a {
  color: var(--text);
  text-underline-offset: 4px;
}

a:hover {
  color: var(--alert);
}

h1,
h2,
h3 {
  margin: 0;
  font-weight: 700;
  letter-spacing: -0.01em;
  line-height: 1.15;
  text-wrap: balance;
}

h1 {
  font-size: 1.2rem;
}

h2 {
  font-size: clamp(1.25rem, 2vw, 1.65rem);
}

h3 {
  font-size: 1rem;
}

p {
  margin: 0;
}

code {
  color: var(--warn);
  font-family: var(--font-mono);
  font-size: 0.9em;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.skip-link {
  position: fixed;
  top: 8px;
  left: 8px;
  z-index: 50;
  padding: 10px 14px;
  border: 1px solid var(--alert);
  border-radius: 3px;
  background: var(--panel-deep);
  color: var(--text);
  transform: translateY(-150%);
}

.skip-link:focus {
  transform: translateY(0);
}

section[id] {
  scroll-margin-top: 126px;
}

.console-header {
  position: sticky;
  top: 0;
  z-index: 20;
  border-bottom: 1px solid var(--border);
  background: var(--bg);
  box-shadow: 0 8px 24px var(--shadow);
}

.header-main,
.console-header nav,
.monitor-shell,
.info-section,
footer {
  width: min(100%, var(--max-width));
  margin-inline: auto;
}

.header-main {
  display: grid;
  grid-template-columns: minmax(180px, 0.7fr) minmax(500px, 1.4fr) auto;
  align-items: center;
  min-height: 72px;
  padding: 10px 20px;
  gap: 24px;
}

.identity {
  display: flex;
  align-items: center;
  min-width: 0;
  gap: 10px;
}

.identity p {
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 0.7rem;
}

.brand-mark {
  width: 34px;
  height: 34px;
  flex: none;
  fill: none;
  stroke: var(--alert);
  stroke-width: 2.2;
  stroke-linecap: square;
  stroke-linejoin: miter;
}

.model-meta,
.summary-strip dl {
  display: grid;
  margin: 0;
}

.model-meta {
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
}

.model-meta div {
  min-width: 0;
  padding: 7px 10px;
  background: var(--panel-deep);
}

dt {
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 0.64rem;
  letter-spacing: 0.08em;
}

dd {
  margin: 2px 0 0;
  overflow: hidden;
  color: var(--text);
  font-family: var(--font-mono);
  font-size: 0.76rem;
  font-variant-numeric: tabular-nums;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.status-pill {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 108px;
  min-height: 38px;
  gap: 8px;
  border: 1px solid var(--border-strong);
  border-radius: 999px;
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 0.76rem;
}

.status-pill span {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: currentColor;
}

.status-pill[data-status="stable"] {
  border-color: var(--stable);
  color: var(--stable);
  background: var(--stable-soft);
}

.status-pill[data-status="warn"] {
  border-color: var(--warn);
  color: var(--warn);
  background: var(--warn-soft);
}

.status-pill[data-status="alert"] {
  border-color: var(--alert);
  color: var(--alert);
  background: var(--alert-soft);
}

.console-header nav {
  display: flex;
  min-height: 36px;
  align-items: center;
  gap: 22px;
  padding: 0 20px 8px;
}

.console-header nav a {
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 0.7rem;
  text-decoration: none;
  text-transform: uppercase;
}

.console-header nav a:hover {
  color: var(--text);
}

.monitor-shell,
.info-section {
  padding-inline: 20px;
}

.monitor-shell {
  padding-top: 32px;
  padding-bottom: 64px;
}

.monitor-title-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 28px;
  align-items: end;
}

.eyebrow,
.panel-index {
  color: var(--alert);
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.1em;
}

.lede,
.panel-copy {
  max-width: 74ch;
  color: var(--muted-strong);
}

.lede {
  margin-top: 9px;
}

.control-deck {
  display: grid;
  grid-template-columns: minmax(260px, 1fr) 116px 104px;
  gap: 8px;
}

.control-deck label {
  display: grid;
  gap: 5px;
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 0.66rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.control-deck label:focus-within {
  color: var(--text);
}

.control-deck select,
.control-deck input {
  width: 100%;
  padding: 8px 10px;
  font-family: var(--font-mono);
  font-size: 0.76rem;
  font-variant-numeric: tabular-nums;
}

.stream-note,
.error-box {
  margin-top: 16px;
  padding: 10px 12px;
  border-left: 3px solid var(--stable);
  background: var(--panel-deep);
  color: var(--muted-strong);
  font-family: var(--font-mono);
  font-size: 0.74rem;
  overflow-wrap: anywhere;
}

.stream-note[data-injected="true"] {
  border-color: var(--alert);
  color: var(--text);
}

.error-box {
  border-color: var(--alert);
  color: var(--alert);
}

.summary-strip {
  margin: 14px 0;
  border: 1px solid var(--border);
  background: var(--border);
}

.summary-strip dl {
  grid-template-columns: repeat(6, minmax(0, 1fr));
  gap: 1px;
}

.summary-strip dl div {
  min-width: 0;
  padding: 10px 12px;
  background: var(--panel);
}

.summary-strip dd {
  font-size: 0.94rem;
}

.panel {
  min-width: 0;
  margin-top: 14px;
  border: 1px solid var(--border);
  border-radius: 4px;
  background: var(--panel);
  box-shadow: 0 8px 28px var(--shadow);
  padding: 18px;
}

.panel-heading {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 18px;
}

.panel-index {
  margin-bottom: 5px;
}

.panel-copy {
  margin: 8px 0 14px;
  font-size: 0.86rem;
}

.legend,
.metric-legend {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 0.68rem;
}

.legend span,
.metric-legend span {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.legend i,
.metric-legend i {
  width: 9px;
  height: 9px;
  display: inline-block;
  background: currentColor;
}

.legend .stable,
.metric-legend .accuracy {
  color: var(--stable);
}

.legend .warn,
.metric-legend .brier {
  color: var(--warn);
}

.legend .alert,
.metric-legend .ph {
  color: var(--alert);
}

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

.table-scroll {
  max-width: 100%;
  overflow: auto;
  scrollbar-color: var(--border-strong) var(--panel-deep);
}

.timeline-scroll {
  max-height: 790px;
  border: 1px solid var(--border);
}

.timeline-table {
  width: max-content;
  min-width: 100%;
  border-collapse: separate;
  border-spacing: 1px;
  background: var(--border);
  font-family: var(--font-mono);
  font-size: 0.64rem;
}

.timeline-table th {
  height: 44px;
  padding: 5px 7px;
  background: var(--panel-deep);
  color: var(--muted);
  font-weight: 500;
  text-align: center;
  white-space: nowrap;
}

.timeline-table th[scope="row"] {
  position: sticky;
  left: 0;
  z-index: 2;
  min-width: 190px;
  max-width: 190px;
  padding-left: 10px;
  color: var(--text);
  text-align: left;
  overflow: hidden;
  text-overflow: ellipsis;
}

.timeline-table thead th:first-child {
  position: sticky;
  left: 0;
  z-index: 3;
  text-align: left;
}

.timeline-table td {
  padding: 0;
  background: var(--panel-deep);
}

.heat-cell {
  width: 54px;
  min-height: 44px;
  border: 0;
  border-radius: 0;
  color: var(--text);
  font-family: var(--font-mono);
  font-size: 0.64rem;
  font-variant-numeric: tabular-nums;
}

.heat-cell.stable {
  background: var(--stable-soft);
  color: var(--stable);
}

.heat-cell.warn {
  background: var(--warn-soft);
  color: var(--warn);
}

.heat-cell.alert {
  background: var(--alert-soft);
  color: var(--alert);
}

.heat-cell[aria-pressed="true"] {
  outline: 2px solid currentColor;
  outline-offset: -3px;
  background: var(--text-soft);
}

.selection-label {
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-variant-numeric: tabular-nums;
  text-align: right;
}

.chart-wrap {
  width: 100%;
  min-height: 260px;
  margin-top: 14px;
  border: 1px solid var(--border);
  background: var(--panel-deep);
}

.chart {
  display: block;
  width: 100%;
  height: auto;
  min-height: 260px;
}

.chart text {
  fill: var(--muted);
  font-family: var(--font-mono);
  font-size: 10px;
}

.chart .axis,
.chart .grid {
  stroke: var(--border-strong);
  stroke-width: 1;
  vector-effect: non-scaling-stroke;
}

.chart .grid {
  stroke-dasharray: 2 5;
}

.chart .reference-line,
.chart .reference-bar {
  fill: none;
  stroke: var(--stable);
  stroke-width: 2.2;
  vector-effect: non-scaling-stroke;
}

.chart .batch-line {
  fill: none;
  stroke: var(--warn);
  stroke-width: 2.2;
  vector-effect: non-scaling-stroke;
}

.chart .batch-bar {
  fill: var(--warn-soft);
  stroke: var(--warn);
  vector-effect: non-scaling-stroke;
}

.chart .accuracy-line {
  fill: none;
  stroke: var(--stable);
  stroke-width: 2.2;
  vector-effect: non-scaling-stroke;
}

.chart .auc-line {
  fill: none;
  stroke: var(--text);
  stroke-width: 2.2;
  vector-effect: non-scaling-stroke;
}

.chart .brier-line {
  fill: none;
  stroke: var(--warn);
  stroke-width: 2.2;
  vector-effect: non-scaling-stroke;
}

.chart .ph-line {
  stroke: var(--alert);
  stroke-width: 2;
  stroke-dasharray: 5 4;
  vector-effect: non-scaling-stroke;
}

.chart .ph-text {
  fill: var(--alert);
}

.data-table {
  width: 100%;
  border-collapse: collapse;
  color: var(--text);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-variant-numeric: tabular-nums;
}

.data-table caption {
  padding: 14px 0 7px;
  color: var(--muted);
  font-family: var(--font-ui);
  font-size: 0.76rem;
  text-align: left;
}

.data-table th,
.data-table td {
  padding: 9px 10px;
  border-bottom: 1px solid var(--border);
  text-align: left;
  vertical-align: top;
}

.data-table th {
  color: var(--muted);
  font-weight: 500;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  white-space: nowrap;
}

.data-table tbody tr:hover {
  background: var(--text-soft);
}

.alert-table tbody tr {
  content-visibility: auto;
  contain-intrinsic-size: 38px;
}

.data-table.compact {
  min-width: 680px;
}

.distribution-table-wrap {
  max-height: 260px;
}

.performance-table-wrap {
  max-height: 310px;
}

.metric-legend {
  margin-top: 10px;
}

.panel-heading button {
  min-width: 112px;
  padding: 8px 14px;
  border-color: var(--alert);
  background: var(--alert-soft);
  color: var(--alert);
  font-family: var(--font-mono);
  font-size: 0.72rem;
}

.panel-heading button:hover {
  background: var(--alert);
  color: var(--black);
}

.alert-table {
  min-width: 1000px;
}

.alert-table-wrap {
  max-height: 520px;
  margin-top: 10px;
  border: 1px solid var(--border);
}

.alert-table thead {
  position: sticky;
  top: 0;
  z-index: 2;
  background: var(--panel-deep);
}

.drift-type {
  white-space: nowrap;
}

.drift-type.data {
  color: var(--warn);
}

.drift-type.concept {
  color: var(--alert);
}

.info-section {
  padding-top: 56px;
  padding-bottom: 56px;
  border-top: 1px solid var(--border);
}

.info-section > h2 {
  margin-top: 5px;
}

.info-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin-top: 20px;
  border: 1px solid var(--border);
  background: var(--border);
}

.info-grid article {
  min-width: 0;
  padding: 22px;
  background: var(--panel);
}

.info-grid article p {
  max-width: 72ch;
  margin-top: 9px;
  color: var(--muted-strong);
}

.limitations-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin: 20px 0 0;
  padding: 1px;
  background: var(--border);
  list-style-position: inside;
}

.limitations-list li {
  padding: 18px;
  background: var(--panel);
  color: var(--muted-strong);
}

footer {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  padding: 24px 20px 40px;
  border-top: 1px solid var(--border);
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 0.7rem;
}

@media (max-width: 1050px) {
  .header-main {
    grid-template-columns: minmax(180px, 1fr) auto;
  }

  .model-meta {
    grid-column: 1 / -1;
    grid-row: 2;
  }

  .status-pill {
    grid-column: 2;
    grid-row: 1;
  }

  .monitor-title-row {
    grid-template-columns: 1fr;
  }

  .control-deck {
    grid-template-columns: minmax(220px, 1fr) 116px 104px;
  }

  .summary-strip dl {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (max-width: 680px) {
  .header-main,
  .console-header nav,
  .monitor-shell,
  .info-section,
  footer {
    padding-inline: 12px;
  }

  .header-main {
    gap: 10px;
  }

  .model-meta {
    grid-template-columns: 1fr;
  }

  .console-header nav {
    gap: 14px;
    overflow-x: auto;
  }

  .monitor-shell {
    padding-top: 22px;
  }

  .control-deck {
    grid-template-columns: 1fr 1fr;
  }

  .control-deck label:first-child {
    grid-column: 1 / -1;
  }

  .summary-strip dl {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .panel {
    padding: 14px;
  }

  .panel-heading {
    align-items: start;
    flex-direction: column;
  }

  .selection-label {
    text-align: left;
  }

  .legend,
  .metric-legend {
    gap: 8px 12px;
  }

  .timeline-table th[scope="row"] {
    min-width: 150px;
    max-width: 150px;
  }

  .info-grid,
  .limitations-list {
    grid-template-columns: 1fr;
  }

  footer {
    flex-direction: column;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
}