/* measured.nodejavascript.com
 *
 * One palette, one ground, one accent — teal on a nearly-black green, with a faint graph-paper
 * grid behind it, because the subject is plotted data. No other site in the family uses this
 * colour or this ground (part 5 of the site standard).
 */

:root {
  --ink: #f7eef9;
  --ink-2: #c9aed1;
  --ink-3: #8f7395;
  --accent: #d946ef;
  --accent-soft: #f5d0fe;
  --line: #301433;
  --line-2: #46184d;
  --ground: #110413;
  --panel: #1a0720;
  --panel-2: #230a2b;
  --warn: #fbbf24;
  --bad: #f87171;
  --radius: 14px;
  --mono: ui-monospace, "SF Mono", "JetBrains Mono", Menlo, Consolas, monospace;
  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Inter, Roboto, Helvetica, Arial, sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 4.5rem;
}

body {
  margin: 0;
  background: var(--ground);
  color: var(--ink);
  font: 16px/1.62 var(--sans);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

/* the site's own ground: graph paper, faded at the edges so it frames the page instead of
   competing with the charts, which are the only other drawing on it. */
.grid {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background-image:
    linear-gradient(to right, rgba(217, 70, 239, 0.07) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(217, 70, 239, 0.07) 1px, transparent 1px);
  background-size: 32px 32px;
  -webkit-mask-image: radial-gradient(ellipse 90% 60% at 50% 0%, #000 0%, transparent 78%);
  mask-image: radial-gradient(ellipse 90% 60% at 50% 0%, #000 0%, transparent 78%);
}

a {
  color: var(--accent-soft);
  text-decoration: none;
  text-underline-offset: 3px;
}
a:hover {
  text-decoration: underline;
}

.skip {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--accent);
  color: #110413;
  padding: 0.6rem 1rem;
  border-radius: 0 0 8px 0;
  font-weight: 700;
  z-index: 20;
}
.skip:focus {
  left: 0;
}

/* ── the bar ────────────────────────────────────────────────────────────────────────────── */

.top {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.7rem clamp(1rem, 4vw, 2.5rem);
  background: rgba(17, 4, 19, 0.82);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  color: var(--ink);
}
.brand:hover {
  text-decoration: none;
}
.mark {
  display: inline-flex;
  line-height: 0;
}
.mark svg {
  border-radius: 7px;
  box-shadow: 0 0 0 1px var(--line-2);
}
.brand-text b {
  display: block;
  font-size: 1rem;
  letter-spacing: 0.01em;
  line-height: 1.1;
}
.brand-text small {
  display: block;
  font-size: 0.68rem;
  color: var(--ink-3);
  letter-spacing: 0.09em;
  text-transform: lowercase;
}

/* ── the page ───────────────────────────────────────────────────────────────────────────── */

main {
  position: relative;
  z-index: 1;
  width: min(1120px, 100% - 2rem);
  margin: 0 auto;
  padding: clamp(2rem, 6vw, 4.5rem) 0 4rem;
}

.hero {
  display: grid;
  gap: clamp(1.2rem, 3vw, 2.2rem);
  margin-bottom: clamp(2.5rem, 6vw, 4rem);
  align-items: center;
}
@media (min-width: 980px) {
  .hero {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
  }
}
.hero-text {
  max-width: 44rem;
}
.hero-figure {
  margin: 0;
  padding: 0.9rem 0.9rem 0.6rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(26, 7, 32, 0.6);
}
.hero-figure figcaption {
  margin-top: 0.35rem;
}

h1 {
  margin: 0 0 1.1rem;
  font-size: clamp(2rem, 5.2vw, 3.3rem);
  line-height: 1.08;
  letter-spacing: -0.022em;
  font-weight: 800;
  text-wrap: balance;
}

.lede {
  margin: 0 0 1.6rem;
  font-size: clamp(1.02rem, 1.4vw, 1.14rem);
  color: var(--ink-2);
  max-width: 40rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
  margin: 0;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.62rem 1.05rem;
  border-radius: 999px;
  border: 1px solid var(--line-2);
  color: var(--ink);
  font-weight: 600;
  font-size: 0.94rem;
  background: var(--panel);
  transition: border-color 0.15s, background 0.15s;
}
.btn:hover {
  text-decoration: none;
  border-color: var(--accent);
  background: var(--panel-2);
}
.btn.primary {
  background: var(--accent);
  border-color: var(--accent);
  color: #110413;
}
.btn.primary:hover {
  background: var(--accent-soft);
  border-color: var(--accent-soft);
}

/* ── panels ─────────────────────────────────────────────────────────────────────────────── */

.panel {
  position: relative;
  margin: 0 0 clamp(2rem, 4vw, 3rem);
  padding: clamp(1.2rem, 2.6vw, 2rem);
  background: linear-gradient(180deg, rgba(35, 10, 43, 0.72), rgba(26, 7, 32, 0.72));
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

h2 {
  margin: 0 0 0.5rem;
  font-size: clamp(1.2rem, 2.2vw, 1.5rem);
  letter-spacing: -0.01em;
  font-weight: 750;
}

h3 {
  margin: 1.8rem 0 0.45rem;
  font-size: 1.02rem;
  letter-spacing: 0.01em;
  color: var(--ink);
}

.sub {
  margin: 0 0 1.3rem;
  color: var(--ink-2);
  max-width: 62ch;
}
.sub.tight {
  margin-bottom: 0.8rem;
}

/* ── controls ───────────────────────────────────────────────────────────────────────────── */

.picker {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  margin-bottom: 1.1rem;
}

.chip {
  display: inline-flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 0.1rem;
  padding: 0.55rem 0.9rem;
  border-radius: 10px;
  border: 1px solid var(--line-2);
  background: var(--panel);
  color: var(--ink);
  font: inherit;
  font-weight: 650;
  font-size: 0.92rem;
  cursor: pointer;
  transition: border-color 0.15s, background 0.15s;
}
.chip small {
  font-weight: 500;
  font-size: 0.72rem;
  color: var(--ink-3);
  font-family: var(--mono);
}
.chip:hover {
  border-color: var(--accent);
  background: var(--panel-2);
}
.chip[aria-pressed="true"] {
  border-color: var(--accent);
  background: rgba(217, 70, 239, 0.14);
}
.chip[aria-pressed="true"] small {
  color: var(--accent-soft);
}

.file-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.8rem;
  margin-bottom: 1.3rem;
}
.file {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.9rem;
  color: var(--ink-2);
  padding: 0.5rem 0.8rem;
  border: 1px dashed var(--line-2);
  border-radius: 10px;
  cursor: pointer;
}
.file:hover {
  border-color: var(--accent);
}
.file input {
  font-size: 0.85rem;
  color: var(--ink-2);
  max-width: 15rem;
}

.hint {
  font-size: 0.82rem;
  color: var(--ink-3);
}

.control-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem 0.7rem;
  margin: 0 0 1.2rem;
  padding: 0.7rem 0.9rem;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: rgba(17, 4, 19, 0.5);
}
.control-row label {
  font-size: 0.84rem;
  font-weight: 650;
  color: var(--ink-2);
  letter-spacing: 0.02em;
}
select,
input[type="range"] {
  font: inherit;
  font-size: 0.9rem;
  color: var(--ink);
  background: var(--panel-2);
  border: 1px solid var(--line-2);
  border-radius: 8px;
  padding: 0.32rem 0.5rem;
}
select:focus-visible,
input:focus-visible,
.chip:focus-visible,
button:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}
input[type="range"] {
  padding: 0;
  width: 9rem;
  accent-color: var(--accent);
}
output {
  font-family: var(--mono);
  color: var(--accent-soft);
}

/* ── two-column layout ──────────────────────────────────────────────────────────────────── */

.two-up {
  display: grid;
  gap: 1.4rem;
  grid-template-columns: minmax(0, 1fr);
}
@media (min-width: 880px) {
  .two-up {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr);
    align-items: start;
  }
}

/* ── tables ─────────────────────────────────────────────────────────────────────────────── */

.table-wrap {
  overflow-x: auto;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: rgba(17, 4, 19, 0.42);
}

table {
  border-collapse: collapse;
  width: 100%;
  font-size: 0.87rem;
}
th,
td {
  text-align: right;
  padding: 0.42rem 0.7rem;
  border-bottom: 1px solid var(--line);
  white-space: nowrap;
}
th:first-child,
td:first-child {
  text-align: left;
}
thead th {
  font-size: 0.72rem;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  color: var(--ink-3);
  font-weight: 650;
}
tbody tr:last-child td {
  border-bottom: 0;
}
tbody tr:hover td {
  background: rgba(217, 70, 239, 0.06);
}
td.num {
  font-family: var(--mono);
  font-variant-numeric: tabular-nums;
  color: var(--ink);
}
td.why {
  font-family: var(--sans);
  font-size: 0.8rem;
  color: var(--ink-3);
  white-space: normal;
  min-width: 15rem;
  text-align: left;
}
th.corner {
  border-bottom: 0;
}
tbody th {
  text-align: left;
  font-weight: 600;
  font-family: var(--mono);
  font-size: 0.82rem;
  color: var(--ink-2);
}
td.diag {
  color: var(--accent-soft);
  font-weight: 700;
}
td.off {
  color: var(--bad);
}
caption {
  caption-side: top;
  text-align: left;
  padding: 0.5rem 0.7rem;
  font-size: 0.8rem;
  color: var(--ink-3);
  border-bottom: 1px solid var(--line);
}
tr.total td,
tr.total th {
  font-weight: 700;
  color: var(--ink);
  background: rgba(217, 70, 239, 0.07);
}

/* ── the arithmetic block ───────────────────────────────────────────────────────────────── */

.arith {
  margin-top: 0.9rem;
  padding: 0.85rem 1rem;
  border-left: 2px solid var(--accent);
  background: rgba(217, 70, 239, 0.06);
  border-radius: 0 8px 8px 0;
  font-family: var(--mono);
  font-size: 0.8rem;
  line-height: 1.75;
  color: var(--ink-2);
  overflow-x: auto;
}
.arith b {
  color: var(--accent-soft);
  font-weight: 600;
}

/* ── charts ─────────────────────────────────────────────────────────────────────────────── */

.chart-figure {
  margin: 0 0 1rem;
}
figcaption {
  margin-top: 0.5rem;
  font-size: 0.8rem;
  color: var(--ink-3);
  line-height: 1.55;
}

.chart svg {
  display: block;
  width: 100%;
  height: auto;
  overflow: visible;
}
.chart.small svg {
  max-height: 120px;
}
.chart text {
  font-family: var(--mono);
  fill: var(--ink-3);
  font-size: 9px;
}
.chart .axis {
  stroke: var(--line-2);
  stroke-width: 1;
}
.chart .bar {
  fill: rgba(217, 70, 239, 0.55);
  stroke: var(--accent);
  stroke-width: 1;
}
.chart .bar:hover {
  fill: var(--accent-soft);
}
.chart .pt {
  fill: var(--accent-soft);
  fill-opacity: 0.72;
}
.chart .pt:hover {
  fill: #fff;
  fill-opacity: 1;
}
.chart .line {
  stroke: var(--accent);
  stroke-width: 2;
  fill: none;
}
.chart .line.dashed {
  stroke-dasharray: 4 4;
  stroke: var(--ink-3);
}
.chart .box {
  fill: rgba(217, 70, 239, 0.18);
  stroke: var(--accent);
  stroke-width: 1.4;
}
.chart .median {
  stroke: var(--accent-soft);
  stroke-width: 2;
}
.chart .whisker {
  stroke: var(--accent);
  stroke-width: 1.4;
}
.chart .outlier {
  fill: none;
  stroke: var(--warn);
  stroke-width: 1.2;
}
.chart .grid-line {
  stroke: var(--line);
  stroke-width: 1;
}
.chart .label {
  fill: var(--ink-2);
  font-size: 10px;
}

.quartet {
  display: grid;
  gap: 0.8rem;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}
@media (min-width: 760px) {
  .quartet {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}
.quartet figure {
  margin: 0;
}
.quartet figcaption {
  text-align: center;
  margin-top: 0.25rem;
}

/* ── the uncertainty blocks ─────────────────────────────────────────────────────────────── */

.cv {
  display: grid;
  gap: 0.8rem;
  grid-template-columns: minmax(0, 1fr);
  margin-bottom: 0.6rem;
}
@media (min-width: 700px) {
  .cv {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.1fr);
    align-items: center;
  }
}
.cv-big {
  display: flex;
  align-items: baseline;
  gap: 0.4rem;
  font-family: var(--mono);
}
.cv-big .value {
  font-size: clamp(1.6rem, 3.4vw, 2.1rem);
  font-weight: 700;
  color: var(--accent-soft);
  letter-spacing: -0.02em;
}
.cv-big .pm {
  font-size: 1rem;
  color: var(--ink-2);
}
.cv-big .unit {
  font-size: 0.8rem;
  color: var(--ink-3);
}
.cv-note {
  font-size: 0.82rem;
  color: var(--ink-3);
  margin: 0.3rem 0 0;
}

.assumptions {
  display: grid;
  gap: 0.7rem;
  grid-template-columns: minmax(0, 1fr);
}
@media (min-width: 820px) {
  .assumptions {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}
.assumption {
  padding: 0.75rem 0.9rem;
  border: 1px solid var(--line);
  border-left-width: 2px;
  border-radius: 0 8px 8px 0;
  background: rgba(17, 4, 19, 0.42);
}
.assumption h4 {
  margin: 0 0 0.25rem;
  font-size: 0.88rem;
  display: flex;
  align-items: baseline;
  gap: 0.5rem;
}
.assumption p {
  margin: 0;
  font-size: 0.82rem;
  color: var(--ink-2);
}
.assumption .verdict {
  font-family: var(--mono);
  font-size: 0.72rem;
  padding: 0.08rem 0.4rem;
  border-radius: 999px;
  border: 1px solid currentColor;
  white-space: nowrap;
}
.v-ok {
  border-left-color: var(--accent);
}
.v-ok .verdict {
  color: var(--accent-soft);
}
.v-warn {
  border-left-color: var(--warn);
}
.v-warn .verdict {
  color: var(--warn);
}
.v-na {
  border-left-color: var(--ink-3);
}
.v-na .verdict {
  color: var(--ink-3);
}

/* ── the numbered steps ─────────────────────────────────────────────────────────────────── */

.steps {
  margin: 0;
  padding-left: 1.25rem;
  display: grid;
  gap: 0.85rem;
  color: var(--ink-2);
  max-width: 66ch;
}
.steps b {
  color: var(--ink);
}
.steps li::marker {
  color: var(--accent);
  font-family: var(--mono);
  font-weight: 700;
}

.plain {
  margin: 0;
  padding-left: 1.15rem;
  display: grid;
  gap: 0.6rem;
  color: var(--ink-2);
  max-width: 68ch;
}
.plain b {
  color: var(--ink);
}
.plain li::marker {
  color: var(--accent);
}
.cites li {
  font-size: 0.9rem;
}

code {
  font-family: var(--mono);
  font-size: 0.86em;
  background: rgba(217, 70, 239, 0.1);
  padding: 0.08em 0.32em;
  border-radius: 4px;
  color: var(--accent-soft);
}

pre {
  margin: 0 0 0.9rem;
  padding: 0.9rem 1rem;
  background: #0d0310;
  border: 1px solid var(--line);
  border-radius: 10px;
  overflow-x: auto;
}
pre code {
  background: none;
  padding: 0;
  font-size: 0.82rem;
  line-height: 1.8;
  color: var(--ink-2);
}

.meta {
  display: grid;
  gap: 0.2rem;
  margin-bottom: 1rem;
  font-size: 0.86rem;
  color: var(--ink-2);
}
.meta b {
  color: var(--ink);
}
.meta .src {
  font-size: 0.82rem;
  color: var(--ink-3);
}

.table-wrap + .table-wrap {
  margin-top: 0.9rem;
}

.note {
  font-size: 0.85rem;
  color: var(--ink-3);
  margin: 0.9rem 0 0;
}
.warn {
  color: var(--warn);
}
.bad {
  color: var(--bad);
}

/* ── the footer ─────────────────────────────────────────────────────────────────────────── */

.site-footer {
  position: relative;
  z-index: 1;
  border-top: 1px solid var(--line);
  padding: 1.6rem clamp(1rem, 4vw, 2.5rem) 2.4rem;
  display: grid;
  gap: 0.7rem;
  font-size: 0.86rem;
  color: var(--ink-3);
  background: rgba(17, 4, 19, 0.7);
}
.footer-brand {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  color: var(--ink-2);
}
.footer-brand b {
  color: var(--ink);
}
.footer-links {
  margin: 0;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.35rem;
}
.footer-links a {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
}
.gh-star {
  width: 12px;
  height: 12px;
  fill: #fbbf24;
  flex: none;
}
.copyright {
  margin: 0;
  font-size: 0.78rem;
  color: var(--ink-3);
}
.linkbtn {
  font: inherit;
  color: var(--accent-soft);
  background: none;
  border: 0;
  padding: 0;
  cursor: pointer;
}
.linkbtn:hover {
  text-decoration: underline;
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  * {
    transition: none !important;
  }
}

/* ── the cookie bar ──────────────────────────────────────────────────────────────────────
 * The panel is a dialog at the foot of the page. It is drawn in the site's own palette so it
 * reads as part of the page rather than as a vendor widget bolted on, and it carries the ids the
 * family's render check looks for (#consentBar, #consentPrefs).
 */

.consent {
  position: fixed;
  left: 50%;
  bottom: 1rem;
  transform: translateX(-50%);
  z-index: 40;
  width: min(640px, calc(100% - 2rem));
  background: var(--panel-2);
  border: 1px solid var(--line-2);
  border-radius: var(--radius);
  box-shadow: 0 18px 48px rgba(0, 0, 0, 0.55);
  padding: 1.05rem 1.15rem;
  font-size: 0.9rem;
  color: var(--ink-2);
}
.consentAsk,
.consentPrefs {
  display: block;
}
.consentTitle {
  margin: 0 0 0.45rem;
  font-size: 1rem;
  color: var(--ink);
}
.consentText {
  margin: 0 0 0.75rem;
  line-height: 1.6;
}
.consentNote {
  color: var(--ink-3);
  font-size: 0.84rem;
}
.consentActions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
}
.consentActions button {
  font: inherit;
  font-weight: 650;
  font-size: 0.9rem;
  padding: 0.5rem 0.95rem;
  border-radius: 999px;
  border: 1px solid var(--line-2);
  background: var(--panel);
  color: var(--ink);
  cursor: pointer;
}
.consentActions button.primary {
  background: var(--accent);
  border-color: var(--accent);
  color: #110413;
}
.consentActions button:hover {
  border-color: var(--accent);
}
.consentHead {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 0.6rem;
}
.consentClose {
  font: inherit;
  font-size: 1.3rem;
  line-height: 1;
  background: none;
  border: 0;
  color: var(--ink-3);
  cursor: pointer;
  padding: 0 0.2rem;
}
.consentClose:hover {
  color: var(--ink);
}
.consentList {
  list-style: none;
  margin: 0 0 0.85rem;
  padding: 0;
  display: grid;
  gap: 0.7rem;
}
.consentRow {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1rem;
  padding-bottom: 0.7rem;
  border-bottom: 1px solid var(--line);
}
.consentRow:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}
.consentRowName {
  margin: 0 0 0.15rem;
  font-weight: 650;
  color: var(--ink);
  font-size: 0.88rem;
}
.consentRowWhy {
  margin: 0;
  font-size: 0.82rem;
  color: var(--ink-3);
  line-height: 1.55;
}
.consentAlways {
  font-family: var(--mono);
  font-size: 0.72rem;
  color: var(--ink-3);
  border: 1px solid var(--line-2);
  border-radius: 999px;
  padding: 0.1rem 0.5rem;
  white-space: nowrap;
}
.consentSwitch {
  flex: none;
  width: 42px;
  height: 24px;
  border-radius: 999px;
  border: 1px solid var(--line-2);
  background: #110413;
  cursor: pointer;
  position: relative;
  padding: 0;
}
.consentSwitch[aria-checked="true"] {
  background: rgba(217, 70, 239, 0.35);
  border-color: var(--accent);
}
.consentDot {
  position: absolute;
  top: 2px;
  left: 2px;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--ink-3);
  transition: transform 0.15s, background 0.15s;
}
.consentSwitch[aria-checked="true"] .consentDot {
  transform: translateX(18px);
  background: var(--accent-soft);
}
body {
  padding-bottom: var(--consent-height, 0px);
}