/* ============================================================================
   Transportation Flow Network -Tufte editorial stylesheet
   A figure-centric technical essay on 142.2M NYC yellow-taxi trips as a directed,
   weighted flow network. Paper background, single 720px measure, 960px figure
   breakout, restrained tables, KaTeX for math.

   Adapted from the "K-Means, four ways" companion-site design system. Keeps the
   paper / ink / faint / rule / accent tokens, Newsreader + JetBrains Mono, the
   .site-header / .site-nav / .site-main / .epigraph contract, sidenotes, and the
   responsive breakpoint. Adds a diverging map scale (blue under .. red over) for
   the gravity-residual choropleths and a categorical palette for the four
   communities.
   ============================================================================ */

/* --- Design tokens (authoritative) --------------------------------------- */
:root {
  /* Palette */
  --paper:      #fffff8;   /* Tufte off-white background           */
  --ink:        #151515;   /* body text                            */
  --ink-faint:  #595959;   /* captions, sidenotes, metadata        */
  --rule:       #dcdcd4;   /* hairlines, table rules               */
  --accent:     #a32015;   /* links, emphasis -dark red, sparing  */

  /* Diverging map scale: gravity residual (under-connected .. over-connected).
     Blue = fewer trips than the model predicts, red = more. Five-step ColorBrewer
     RdBu, mid is the neutral paper-ish grey. */
  --map-under-3: #2c7fb8;  /* strongly under-connected (cool, saturated) */
  --map-under-2: #67a9cf;
  --map-under-1: #d1e5f0;
  --map-mid:     #f7f7f0;  /* on-model, near zero surprise               */
  --map-over-1:  #fddbc7;
  --map-over-2:  #ef8a62;
  --map-over-3:  #b2182b;  /* strongly over-connected (warm, saturated)  */

  /* Categorical community palette (4 detected communities + spare).
     Muted, print-friendly, distinct in the off-white field. */
  --comm-1: #4477aa;   /* steel blue   */
  --comm-2: #cc8844;   /* amber        */
  --comm-3: #117755;   /* pine green   */
  --comm-4: #882255;   /* mulberry     */
  --comm-5: #777777;   /* unassigned / small */

  /* Flow / network glyph helpers */
  --node:       #151515;
  --edge:       rgba(21, 21, 21, 0.28);
  --net-source: #2c7fb8;   /* net source of trips */
  --net-sink:   #b2182b;   /* net sink of trips   */

  /* Type */
  --serif: "Newsreader", Georgia, "Times New Roman", serif;
  --mono:  "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;

  --measure:      820px;   /* reading column   */
  --measure-wide: 1180px;  /* figure breakout  */
  --line:         1.55;    /* generous body leading */

  /* Spacing */
  --gap-xs:  0.4rem;
  --gap-sm:  0.8rem;
  --gap:     1.4rem;
  --gap-lg:  2.6rem;
  --gap-xl:  4.5rem;
}

/* --- Reset & base -------------------------------------------------------- */
*, *::before, *::after { box-sizing: border-box; }

html {
  font-size: 19px;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  font-family: var(--serif);
  font-weight: 400;
  font-size: 1rem;
  line-height: var(--line);
  color: var(--ink);
  background: var(--paper);
  font-variant-numeric: oldstyle-nums proportional-nums;
  font-feature-settings: "kern", "liga", "onum";
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

img, canvas, svg, iframe { max-width: 100%; }
img { height: auto; display: block; }

/* Screen-reader-only heading: keeps the editorial epigraph-first look on the
   Overview and Method pages while still giving each a single semantic h1. */
.visually-hidden {
  position: absolute;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* --- The measure: header, main, footer all share one centered column ----- */
.site-header,
.site-footer,
.site-main > * {
  max-width: var(--measure);
  margin-left: auto;
  margin-right: auto;
  padding-left: 1.5rem;
  padding-right: 1.5rem;
}

.site-main {
  padding-top: var(--gap-lg);
  padding-bottom: var(--gap-xl);
}

/* --- Header: small-caps title left, quiet nav right, hairline rule -------- */
.site-header {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0.6rem 1.4rem;
  padding-top: 1.4rem;
  padding-bottom: 1rem;
  margin-bottom: var(--gap-lg);
  border-bottom: 1px solid var(--rule);
}

.site-title {
  font-family: var(--serif);
  font-weight: 600;
  font-size: 0.92rem;
  font-variant: small-caps;
  letter-spacing: 0.06em;
  color: var(--ink);
  text-decoration: none;
  border: 0;
}

.site-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.2rem 1.1rem;
  margin-left: auto;
  font-size: 0.82rem;
}

.site-nav a {
  color: var(--ink-faint);
  text-decoration: none;
  border: 0;
  font-variant: small-caps;
  letter-spacing: 0.03em;
}
.site-nav a:hover { color: var(--accent); }
/* mark the current page in the nav */
.site-nav a[aria-current="page"] {
  color: var(--ink);
  border-bottom: 1px solid var(--accent);
}

/* --- Footer: quiet metadata line ----------------------------------------- */
.site-footer {
  margin-top: var(--gap-xl);
  padding-top: 1.2rem;
  padding-bottom: 2.4rem;
  border-top: 1px solid var(--rule);
  color: var(--ink-faint);
  font-size: 0.82rem;
  font-style: italic;
}
.site-footer p { margin: 0; }

/* --- Headings ------------------------------------------------------------ */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--serif);
  color: var(--ink);
  line-height: 1.2;
  font-weight: 600;
}

h1 {
  font-weight: 600;
  font-size: 2.3rem;
  line-height: 1.12;
  letter-spacing: -0.01em;
  margin: 0 0 var(--gap);
}

h2 {
  font-size: 1.5rem;
  font-weight: 600;
  margin: var(--gap-xl) 0 var(--gap-sm);
}

h3 {
  font-size: 1.2rem;
  font-style: italic;
  font-weight: 400;
  margin: var(--gap-lg) 0 var(--gap-sm);
}

h4, h5, h6 {
  font-size: 0.78rem;
  font-weight: 600;
  font-variant: small-caps;
  letter-spacing: 0.06em;
  color: var(--ink-faint);
  margin: var(--gap) 0 var(--gap-xs);
}

/* --- Prose --------------------------------------------------------------- */
p { margin: 0 0 var(--gap); }

p.lead {
  font-size: 1.18rem;
  line-height: 1.5;
  color: var(--ink);
  margin-bottom: var(--gap-lg);
}

strong { font-weight: 600; }
em { font-style: italic; }

a {
  color: var(--accent);
  text-decoration: none;
  border-bottom: 1px solid rgba(163, 32, 21, 0.32);
  transition: border-color 120ms ease, color 120ms ease;
}
a:hover { border-bottom-color: var(--accent); }

/* --- newthought: small-caps run-in opener -------------------------------- */
.newthought {
  font-variant: small-caps;
  font-style: normal;
  letter-spacing: 0.03em;
  font-size: 1.08em;
}

/* --- Epigraph: opening summary block ------------------------------------- */
.epigraph {
  margin: 0 auto var(--gap-lg);
  font-style: italic;
  color: var(--ink-faint);
  line-height: 1.5;
}
.epigraph p { margin: 0 0 var(--gap-sm); }
.epigraph footer,
.epigraph cite {
  display: block;
  font-style: normal;
  font-size: 0.82rem;
  font-variant: small-caps;
  letter-spacing: 0.04em;
  color: var(--ink-faint);
}

blockquote {
  margin: var(--gap) 0;
  padding-left: 1.2rem;
  border-left: 2px solid var(--rule);
  color: var(--ink-faint);
  font-style: italic;
}
blockquote p:last-child { margin-bottom: 0; }

/* --- Code ---------------------------------------------------------------- */
code, pre, kbd, samp {
  font-family: var(--mono);
  font-variant-numeric: normal;
  font-feature-settings: normal;
}

code {
  font-size: 0.85em;
  background: rgba(21, 21, 21, 0.045);
  padding: 0.08em 0.34em;
  border-radius: 2px;
}

pre {
  font-size: 0.82rem;
  line-height: 1.5;
  background: rgba(21, 21, 21, 0.045);
  border: 1px solid var(--rule);
  border-radius: 3px;
  padding: 1rem 1.1rem;
  margin: var(--gap) 0;
  overflow-x: auto;
}
pre code {
  background: none;
  padding: 0;
  font-size: inherit;
}

/* --- Lists --------------------------------------------------------------- */
ul, ol {
  margin: 0 0 var(--gap);
  padding-left: 1.4rem;
}
li { margin: 0.25rem 0; }

/* A tidy "key findings" / metric list with hanging dashes */
ul.findings {
  list-style: none;
  padding-left: 0;
}
ul.findings > li {
  padding-left: 1.4rem;
  position: relative;
  margin: 0.6rem 0;
}
ul.findings > li::before {
  content: "-";
  position: absolute;
  left: 0;
  color: var(--accent);
}

/* --- Tables -------------------------------------------------------------- */
table {
  width: 100%;
  border-collapse: collapse;
  margin: var(--gap-lg) 0;
  font-size: 0.9rem;
  font-variant-numeric: tabular-nums lining-nums;
}
thead th {
  border-top: 1px solid var(--ink);
  border-bottom: 1px solid var(--ink);
}
table tbody tr:last-child td {
  border-bottom: 1px solid var(--ink);
}
th, td {
  padding: 0.45rem 0.9rem 0.45rem 0;
  text-align: left;
  vertical-align: baseline;
}
th {
  font-weight: 600;
  font-variant: small-caps;
  letter-spacing: 0.03em;
  color: var(--ink-faint);
}
td.num, th.num { text-align: right; font-variant-numeric: tabular-nums; }

/* --- Horizontal rule ----------------------------------------------------- */
hr {
  border: 0;
  border-top: 1px solid var(--rule);
  margin: var(--gap-xl) 0;
}

/* --- Figures ------------------------------------------------------------- */
figure {
  margin: var(--gap-lg) 0;
}
figure img,
figure canvas,
figure iframe,
figure svg {
  display: block;
  margin: 0 auto;
}
figcaption {
  margin-top: var(--gap-sm);
  font-size: 0.82rem;
  line-height: 1.45;
  color: var(--ink-faint);
  font-style: italic;
}
figcaption .label,
figcaption b,
figcaption strong {
  font-style: normal;
  font-variant: small-caps;
  letter-spacing: 0.04em;
  font-weight: 600;
  color: var(--ink);
}

/* Wide figures break the measure out to ~960px, centered on the viewport */
.figure-wide {
  width: min(var(--measure-wide), calc(100vw - 3rem));
  max-width: none;
  margin-left: 50%;
  transform: translateX(-50%);
}
.figure-wide img,
.figure-wide iframe,
.figure-wide svg { width: 100%; }

/* Side-by-side figure pair (e.g. day vs night maps) */
.figure-pair {
  width: min(var(--measure-wide), calc(100vw - 3rem));
  max-width: none;
  margin-left: 50%;
  transform: translateX(-50%);
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.2rem 1.6rem;
}
.figure-pair figure { margin: 0; }
.figure-pair figure img,
.figure-pair figure svg { width: 100%; }
@media (max-width: 760px) {
  .figure-pair { grid-template-columns: 1fr; }
}

/* Aspect-balanced pair: when a wide (landscape) figure is paired with a
   near-square one, equal columns make the wide one render tiny. Sizing the
   columns ~proportional to the two aspect ratios renders both at the same
   height. The shared caption still spans the full width. */
.figure-pair.is-wideleft { grid-template-columns: 2.6fr 1fr; align-items: end; }
.figure-pair.is-wideleft > figcaption { grid-column: 1 / -1; }
@media (max-width: 760px) {
  .figure-pair.is-wideleft { grid-template-columns: 1fr; }
}

/* --- Interactive network graph (overview + findings) -------------------- */
.net-shell { position: relative; width: 100%; height: 540px; border: 1px solid var(--rule); background: var(--paper); overflow: hidden; }
#net-canvas { display: block; width: 100%; height: 100%; cursor: grab; }
.net-tip { position: absolute; pointer-events: none; background: var(--paper); border: 1px solid var(--ink); box-shadow: 2px 2px 0 rgba(21,21,21,0.12); padding: 6px 9px; font-family: "Newsreader", Georgia, serif; font-size: 0.88rem; line-height: 1.35; max-width: 230px; z-index: 5; }
.net-tip .nt-zone { font-weight: 600; }
.net-tip .nt-boro { color: var(--ink-faint); font-style: italic; }
.net-tip .nt-row { display: block; margin-top: 2px; font-family: "JetBrains Mono", monospace; font-size: 0.74rem; color: var(--ink-faint); }
.net-legend { position: absolute; top: 12px; left: 12px; margin: 0; padding: 0; list-style: none; background: rgba(255,255,248,0.92); border: 1px solid var(--rule); z-index: 4; }
.net-leg { display: flex; align-items: center; gap: 0.5rem; padding: 0.3rem 0.7rem; font-size: 0.85rem; cursor: pointer; color: var(--ink); border-bottom: 1px solid var(--rule); white-space: nowrap; }
.net-leg:last-child { border-bottom: none; }
.net-leg i { width: 12px; height: 12px; display: inline-block; border-radius: 50%; flex: none; }
.net-leg-n { margin-left: 0.6rem; font-family: "JetBrains Mono", monospace; font-size: 0.72rem; color: var(--ink-faint); }
.net-leg:hover, .net-leg.is-active { color: var(--accent); }
.net-leg.is-active i { outline: 2px solid var(--accent); outline-offset: 1px; }
.net-hint { position: absolute; right: 12px; bottom: 10px; font-family: "JetBrains Mono", monospace; font-size: 0.66rem; color: var(--ink-faint); pointer-events: none; }
.net-modes { position: absolute; top: 12px; right: 12px; display: flex; border: 1px solid var(--rule); background: rgba(255,255,248,0.92); z-index: 4; }
.net-mode { border: none; background: transparent; font-family: "Newsreader", Georgia, serif; font-size: 0.82rem; padding: 0.32rem 0.7rem; color: var(--ink); cursor: pointer; }
.net-mode + .net-mode { border-left: 1px solid var(--rule); }
.net-mode[aria-pressed="true"] { color: var(--accent); }
.net-mode:hover { color: var(--accent); }
@media (max-width: 760px) { .net-shell { height: 420px; } .net-hint { display: none; } }

iframe {
  border: 1px solid var(--rule);
  background: var(--paper);
}

/* --- Map / community legends --------------------------------------------- */
/* A horizontal swatch legend used under choropleths and the community map.
   Markup: <ul class="legend"><li><span class="swatch" style="--c:..."></span>label</li>… */
.legend {
  list-style: none;
  padding: 0;
  margin: var(--gap-sm) 0 var(--gap);
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem 1.2rem;
  font-size: 0.78rem;
  color: var(--ink-faint);
}
.legend li {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  margin: 0;
}
.legend .swatch {
  display: inline-block;
  width: 0.9rem;
  height: 0.9rem;
  border: 1px solid rgba(21, 21, 21, 0.2);
  background: var(--c, var(--rule));
  flex: none;
}

/* A continuous diverging gradient bar for the gravity-residual scale */
.legend-gradient {
  margin: var(--gap-sm) 0 var(--gap);
  max-width: 22rem;
}
.legend-gradient .bar {
  height: 0.7rem;
  border: 1px solid rgba(21, 21, 21, 0.2);
  background: linear-gradient(
    to right,
    var(--map-under-3),
    var(--map-under-1),
    var(--map-mid),
    var(--map-over-1),
    var(--map-over-3)
  );
}
.legend-gradient .ticks {
  display: flex;
  justify-content: space-between;
  font-size: 0.72rem;
  color: var(--ink-faint);
  margin-top: 0.2rem;
}

/* Community colour helpers (inline text + swatches) */
.comm-1 { color: var(--comm-1); }
.comm-2 { color: var(--comm-2); }
.comm-3 { color: var(--comm-3); }
.comm-4 { color: var(--comm-4); }
.comm-5 { color: var(--comm-5); }

/* Eyebrow (small-caps kicker above a heading) */
.eyebrow {
  display: block;
  font-variant: small-caps;
  letter-spacing: 0.08em;
  font-size: 0.78rem;
  color: var(--ink-faint);
  margin-bottom: var(--gap-xs);
}

/* --- Stat row: a few headline numbers under the lead --------------------- */
.statrow {
  display: flex;
  flex-wrap: wrap;
  gap: var(--gap-lg);
  /* Keep the auto side-margins and side padding from `.site-main > *` so the row
     stays on the text measure instead of breaking out to the left page edge. */
  margin: var(--gap-lg) auto;
  padding: var(--gap) 1.5rem;
  border-top: 1px solid var(--rule);
  border-bottom: 1px solid var(--rule);
}
.statrow .stat {
  flex: 1 1 8rem;
  text-align: center;
}
.statrow .stat .value {
  display: block;
  font-size: 1.7rem;
  line-height: 1.1;
  font-variant-numeric: lining-nums tabular-nums;
  color: var(--ink);
}
.statrow .stat .label {
  display: block;
  font-size: 0.74rem;
  font-variant: small-caps;
  letter-spacing: 0.05em;
  color: var(--ink-faint);
  margin-top: 0.2rem;
}

/* --- Sidenotes (Tufte numbered-margin pattern) --------------------------- */
.sidenote-toggle {
  display: inline;
  cursor: pointer;
  color: var(--accent);
  font-size: 0.7em;
  vertical-align: super;
  line-height: 0;
  border: 0;
  -webkit-user-select: none;
  user-select: none;
}

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

.sidenote {
  font-size: 0.78rem;
  line-height: 1.4;
  color: var(--ink-faint);
}

@media (max-width: 1279.98px) {
  .sidenote {
    display: none;
    margin: var(--gap-sm) 0;
    padding-left: 1rem;
    border-left: 2px solid var(--rule);
  }
  .sidenote-state:checked + .sidenote { display: block; }
}

@media (min-width: 1280px) {
  .site-main > * { position: relative; }
  .sidenote-toggle {
    cursor: default;
    pointer-events: none;
  }
  .sidenote {
    float: right;
    clear: right;
    width: 14rem;
    margin-right: -16rem;
    margin-top: 0.2rem;
    margin-bottom: var(--gap-sm);
    display: block;
  }
}

/* ===========================================================================
   LIVE MAP  (demo.html -Leaflet choropleth + flow lines)
   Class & id names below are load-bearing for the demo JS. Styled quietly:
   hairline borders, paper background, serif labels.
   =========================================================================== */

/* Wider measure so the map + controls breathe */
.demo-grid {
  max-width: var(--measure-wide);
  margin-left: 50%;
  transform: translateX(-50%);
  display: grid;
  grid-template-columns: minmax(220px, 280px) minmax(0, 1fr);
  gap: var(--gap-lg);
  align-items: start;
  margin-top: var(--gap-lg);
  margin-bottom: var(--gap-lg);
}

.demo-controls {
  display: flex;
  flex-direction: column;
  gap: var(--gap-sm);
  position: sticky;
  top: 1rem;
}

.demo-controls label {
  display: block;
  font-family: var(--serif);
  font-size: 0.85rem;
  color: var(--ink);
}

.demo-controls label span {
  font-variant-numeric: tabular-nums;
  color: var(--ink-faint);
}

.demo-controls input[type="range"] {
  width: 100%;
  margin-top: 0.3rem;
  accent-color: var(--accent);
}

.demo-controls select {
  width: 100%;
  margin-top: 0.25rem;
  font-family: var(--serif);
  font-size: 0.85rem;
  color: var(--ink);
  background: var(--paper);
  border: 1px solid var(--rule);
  border-radius: 2px;
  padding: 0.35rem 0.5rem;
}
.demo-controls select:hover { border-color: var(--ink-faint); }

/* Radio / checkbox groups for layer + daypart toggles */
.demo-controls fieldset {
  border: 1px solid var(--rule);
  border-radius: 2px;
  padding: 0.6rem 0.8rem;
  margin: 0;
}
.demo-controls legend {
  font-size: 0.74rem;
  font-variant: small-caps;
  letter-spacing: 0.04em;
  color: var(--ink-faint);
  padding: 0 0.3rem;
}
.demo-controls fieldset label {
  display: flex;
  align-items: center;
  gap: 0.45rem;
  font-size: 0.84rem;
  margin: 0.15rem 0;
}
.demo-controls fieldset input { accent-color: var(--accent); }

.demo-controls button {
  appearance: none;
  font-family: var(--serif);
  font-size: 0.85rem;
  font-variant: small-caps;
  letter-spacing: 0.03em;
  color: var(--ink);
  background: var(--paper);
  border: 1px solid var(--ink-faint);
  border-radius: 2px;
  padding: 0.35rem 0.9rem;
  cursor: pointer;
  transition: background 120ms ease, color 120ms ease, border-color 120ms ease;
}
.demo-controls button:hover {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--paper);
}
.demo-controls button:disabled {
  color: var(--rule);
  border-color: var(--rule);
  background: var(--paper);
  cursor: not-allowed;
}

.demo-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: var(--gap-sm);
  margin-top: var(--gap-sm);
}

/* Visual column: the map */
.demo-visual {
  display: flex;
  flex-direction: column;
  gap: var(--gap-sm);
  align-items: stretch;
}

.demo-map-wrap { width: 100%; }

#demo-map {
  width: 100%;
  height: 560px;
  border: 1px solid var(--rule);
  background: var(--paper);
}

#demo-status {
  font-family: var(--mono);
  font-size: 0.78rem;
  color: var(--ink-faint);
  text-align: center;
  margin: 0.4rem 0 0;
}

/* Leaflet popups restyled to match the paper system */
.leaflet-container {
  font-family: var(--serif);
  background: var(--paper);
}
.leaflet-popup-content-wrapper {
  background: var(--paper);
  color: var(--ink);
  border: 1px solid var(--rule);
  border-radius: 3px;
  box-shadow: 0 1px 6px rgba(21, 21, 21, 0.12);
}
.leaflet-popup-content {
  font-size: 0.82rem;
  line-height: 1.4;
}
.leaflet-popup-content .zone-name {
  font-weight: 600;
  font-variant: small-caps;
  letter-spacing: 0.03em;
}
.leaflet-popup-content .metric {
  font-variant-numeric: tabular-nums;
}
.leaflet-popup-tip { background: var(--paper); border: 1px solid var(--rule); }
.leaflet-bar a {
  color: var(--ink);
  background: var(--paper);
  border-bottom: 1px solid var(--rule);
}
.leaflet-bar a:hover { background: rgba(21, 21, 21, 0.045); }

/* The map's own legend (diverging or community), bottom-right overlay */
.map-legend {
  background: var(--paper);
  border: 1px solid var(--rule);
  border-radius: 3px;
  padding: 0.5rem 0.7rem;
  font-size: 0.74rem;
  line-height: 1.5;
  color: var(--ink-faint);
}
.map-legend .swatch {
  display: inline-block;
  width: 0.8rem;
  height: 0.8rem;
  margin-right: 0.4rem;
  vertical-align: -0.1rem;
  border: 1px solid rgba(21, 21, 21, 0.2);
}

/* --- KaTeX --------------------------------------------------------------- */
.katex { font-size: 1.02em; }
.katex-display {
  margin: var(--gap) 0;
  overflow-x: auto;
  overflow-y: hidden;
}

/* ===========================================================================
   ACCESSIBILITY
   =========================================================================== */
a:focus-visible,
button:focus-visible,
select:focus-visible,
input:focus-visible,
.sidenote-toggle:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
  border-radius: 2px;
}

@media (prefers-reduced-motion: reduce) {
  * {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    scroll-behavior: auto !important;
  }
}

/* ===========================================================================
   RESPONSIVE  (readable down to 375px)
   =========================================================================== */
@media (max-width: 900px) {
  .demo-grid {
    max-width: 100%;
    margin-left: 0;
    transform: none;
    grid-template-columns: 1fr;
    gap: var(--gap);
  }
  .demo-controls { position: static; }
  #demo-map { height: 440px; }
}

@media (max-width: 760px) {
  html { font-size: 17px; }

  .figure-wide {
    max-width: 100%;
    margin-left: 0;
    transform: none;
  }
  .statrow { gap: var(--gap); }
}

@media (max-width: 420px) {
  html { font-size: 16px; }

  .site-header { gap: 0.4rem 0.9rem; }
  .site-nav { font-size: 0.78rem; gap: 0.15rem 0.8rem; }
  h1 { font-size: 1.95rem; }
  h2 { font-size: 1.32rem; }

  .site-header,
  .site-footer,
  .site-main > * {
    padding-left: 1rem;
    padding-right: 1rem;
  }
  .statrow .stat .value { font-size: 1.45rem; }
}