/* Design_Tokens: the only place for colors, fonts, and sizes. Research lab theme: quiet neutrals, one teal accent. */
@font-face { font-family: "IBM Plex Sans"; font-style: normal; font-weight: 400; font-display: swap; src: url("/assets/fonts/ibm-plex-sans-latin-400-normal.3b646991.woff2") format("woff2"); }
@font-face { font-family: "IBM Plex Sans"; font-style: normal; font-weight: 600; font-display: swap; src: url("/assets/fonts/ibm-plex-sans-latin-600-normal.8960851d.woff2") format("woff2"); }
@font-face { font-family: "IBM Plex Sans"; font-style: italic; font-weight: 400; font-display: swap; src: url("/assets/fonts/ibm-plex-sans-latin-400-italic.6de912e5.woff2") format("woff2"); }
@font-face { font-family: "IBM Plex Mono"; font-style: normal; font-weight: 400; font-display: swap; src: url("/assets/fonts/ibm-plex-mono-latin-400-normal.08949f72.woff2") format("woff2"); }

:root {
  color-scheme: light dark;

  /* Light scheme */
  --c-surface: #FBFBFA;
  --c-sunken: #F1F3F3;
  --c-text: #14181B;
  --c-muted: #4A555D;
  --c-border: #D5DADD;
  --c-border-strong: #6B7780;
  --c-accent: #0A6A70;
  --c-on-accent: #FFFFFF;
  --c-error: #B3261E;
  --c-scrim: rgba(20, 24, 27, 0.45);

  --font-sans: "IBM Plex Sans", system-ui, -apple-system, "Segoe UI", Roboto, "Noto Sans", "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
  --font-sans-hant: "IBM Plex Sans", system-ui, -apple-system, "Segoe UI", Roboto, "Noto Sans", "PingFang TC", "Microsoft JhengHei", "Noto Sans CJK TC", sans-serif;
  --font-mono: "IBM Plex Mono", ui-monospace, "SFMono-Regular", Menlo, Consolas, "Liberation Mono", monospace;

  --fs-0: 0.75rem;
  --fs-1: 0.875rem;
  --fs-2: 1rem;
  --fs-3: 1.25rem;
  --fs-4: 1.75rem;
  --fs-5: 2.5rem;

  --sp-1: 0.25rem;
  --sp-2: 0.5rem;
  --sp-3: 1rem;
  --sp-4: 1.5rem;
  --sp-5: 2.5rem;
  --sp-6: 4rem;

  --w-max: 72rem;
  --bw-hair: 1px;
  --bw-focus: 2px;
  --radius: 2px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --c-surface: #0E1214;
    --c-sunken: #151B1E;
    --c-text: #E6EAEC;
    --c-muted: #A3ADB3;
    --c-border: #2A3337;
    --c-border-strong: #78858C;
    --c-accent: #4FB8BF;
    --c-on-accent: #0E1214;
    --c-error: #FF8A80;
    --c-scrim: rgba(0, 0, 0, 0.6);
  }
}

/* Base and components. References Design_Tokens only. No gradients, shadows, or animation. */
*, *::before, *::after { box-sizing: border-box; }

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

body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: var(--fs-2);
  line-height: 1.6;
  color: var(--c-text);
  background: var(--c-surface);
  overflow-wrap: anywhere;
}

:lang(zh-Hant) { font-family: var(--font-sans-hant); }

h1, h2, h3 { line-height: 1.2; font-weight: 600; margin: 0; letter-spacing: -0.01em; }
h1 { font-size: var(--fs-5); }
h2 { font-size: var(--fs-3); }
h3 { font-size: var(--fs-2); }
p { margin: 0; }
a { color: var(--c-accent); text-underline-offset: 0.2em; }
a:hover { text-decoration-thickness: 2px; }
ul, ol { margin: 0; padding: 0; }

.mono, .specimen__id, .specimen__stub, .eyebrow, .group-index a, .site-footer, .lang-toggle button {
  font-family: var(--font-mono);
}

/* Layout column */
header .site-nav, main, .site-footer {
  max-width: var(--w-max);
  margin-inline: auto;
  padding-inline: var(--sp-4);
}
main { padding-block: var(--sp-5) var(--sp-6); }
main > * + * { margin-block-start: var(--sp-4); }

/* Header */
.site-header { border-bottom: var(--bw-hair) solid var(--c-border); background: var(--c-surface); }
.site-nav {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: var(--sp-2) var(--sp-4);
  padding-block: var(--sp-3);
}
.site-nav__brand { font-family: var(--font-mono); font-size: var(--fs-1); letter-spacing: 0.08em; text-transform: uppercase; color: var(--c-text); text-decoration: none; font-weight: 400; }
.site-nav ul { list-style: none; display: flex; flex-wrap: wrap; gap: var(--sp-1) var(--sp-4); }
.site-nav ul a { color: var(--c-muted); text-decoration: none; font-size: var(--fs-1); padding-block: var(--sp-1); border-bottom: var(--bw-hair) solid transparent; }
.site-nav ul a:hover { color: var(--c-text); border-bottom-color: var(--c-border-strong); }
.site-nav ul a[aria-current="page"] { color: var(--c-text); border-bottom-color: var(--c-accent); }
.site-nav__tools { display: flex; align-items: center; flex-wrap: wrap; gap: var(--sp-2) var(--sp-3); justify-content: flex-end; }
#account-slot { display: flex; align-items: center; gap: var(--sp-3); font-size: var(--fs-1); }
#account-slot a { text-decoration: none; }
.lang-toggle { display: flex; gap: var(--sp-1); }
.lang-toggle button, #account-slot button, #account-slot a {
  background: transparent;
  color: var(--c-muted);
  border: var(--bw-hair) solid var(--c-border);
  border-radius: var(--radius);
  padding: var(--sp-1) var(--sp-2);
  font-size: var(--fs-0);
  cursor: pointer;
}
.lang-toggle button:hover, #account-slot button:hover, #account-slot a:hover, #account-slot a[aria-current="page"] { color: var(--c-text); border-color: var(--c-border-strong); }

@media (max-width: 52rem) {
  .site-nav { grid-template-columns: 1fr; }
  .site-nav__tools { justify-content: flex-start; }
}

.skip-link { position: absolute; left: -999rem; }
.skip-link:focus { left: var(--sp-3); top: var(--sp-3); padding: var(--sp-2) var(--sp-3); background: var(--c-surface); border: var(--bw-hair) solid var(--c-accent); z-index: 2; }

/* Footer */
.site-footer {
  margin-top: var(--sp-6);
  padding-block: var(--sp-4) var(--sp-5);
  border-top: var(--bw-hair) solid var(--c-border);
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: baseline;
  gap: var(--sp-2) var(--sp-4);
  font-size: var(--fs-0);
  color: var(--c-muted);
}
.site-footer p { letter-spacing: 0.08em; text-transform: uppercase; }
.site-footer ul { list-style: none; display: flex; flex-wrap: wrap; gap: var(--sp-1) var(--sp-4); }
.site-footer a { color: var(--c-muted); }
.site-footer a:hover { color: var(--c-text); }

/* Page heading block */
.eyebrow { font-size: var(--fs-0); letter-spacing: 0.12em; text-transform: uppercase; color: var(--c-muted); }
.page-head { display: grid; gap: var(--sp-2); padding-bottom: var(--sp-4); border-bottom: var(--bw-hair) solid var(--c-border); }
.page-head__meta { font-family: var(--font-mono); font-size: var(--fs-1); color: var(--c-muted); }

/* Notices and forms */
.notice { padding: var(--sp-3); background: var(--c-sunken); border: var(--bw-hair) solid var(--c-border); border-left: var(--bw-focus) solid var(--c-accent); font-size: var(--fs-1); color: var(--c-muted); }
.error { color: var(--c-error); }
button, .button {
  font: inherit;
  font-size: var(--fs-1);
  padding: var(--sp-2) var(--sp-3);
  color: var(--c-on-accent);
  background: var(--c-accent);
  border: var(--bw-hair) solid var(--c-accent);
  border-radius: var(--radius);
  cursor: pointer;
  position: relative;
  overflow: hidden;
  isolation: isolate;
  transition: box-shadow 0.25s ease, border-color 0.2s ease, color 0.2s ease;
}
button:disabled { opacity: 0.6; cursor: default; }
input, select, textarea {
  font: inherit;
  max-width: 100%;
  padding: var(--sp-2);
  color: var(--c-text);
  background: var(--c-surface);
  border: var(--bw-hair) solid var(--c-border-strong);
  border-radius: var(--radius);
}
label { font-size: var(--fs-1); }
fieldset { border: var(--bw-hair) solid var(--c-border); padding: var(--sp-3); }

/* Pest page */
.group-index { display: flex; flex-wrap: wrap; gap: var(--sp-2); list-style: none; }
.group-index a {
  display: inline-block;
  padding: var(--sp-1) var(--sp-2);
  font-size: var(--fs-0);
  text-decoration: none;
  color: var(--c-muted);
  border: var(--bw-hair) solid var(--c-border);
  border-radius: var(--radius);
}
.group-index a:hover { color: var(--c-text); border-color: var(--c-accent); }
.group-index span { color: var(--c-accent); }

.pest-group { padding-top: var(--sp-4); scroll-margin-top: var(--sp-3); }
.pest-group > h2 { display: flex; align-items: baseline; justify-content: space-between; gap: var(--sp-3); padding-bottom: var(--sp-2); border-bottom: var(--bw-hair) solid var(--c-border); margin-bottom: var(--sp-3); }
.pest-group__count { font-family: var(--font-mono); font-size: var(--fs-0); font-weight: 400; color: var(--c-muted); }

.pest-list {
  list-style: none;
  display: grid;
  gap: var(--sp-3);
  grid-template-columns: repeat(auto-fill, minmax(min(100%, 15rem), 1fr));
}
.specimen { position: relative; background: var(--c-surface); border: var(--bw-hair) solid var(--c-border); border-radius: var(--radius); }
.specimen:hover, .specimen:focus-within { border-color: var(--c-accent); }
.specimen article { display: grid; align-content: start; height: 100%; }
.specimen .media-frame { border-bottom: var(--bw-hair) solid var(--c-border); }
.specimen .media-frame img { display: block; width: 100%; height: auto; aspect-ratio: 1 / 1; object-fit: cover; }
.specimen__sci-line { padding: var(--sp-3) var(--sp-3) 0; font-size: var(--fs-1); color: var(--c-muted); }
.specimen__name { padding: var(--sp-1) var(--sp-3) 0; font-size: var(--fs-2); }
.specimen__name a { color: var(--c-text); text-decoration: none; }
.specimen__name a::after { content: ""; position: absolute; inset: 0; }
.specimen__name a:hover { text-decoration: underline; }
.specimen__tagline { padding: var(--sp-2) var(--sp-3) var(--sp-3); font-size: var(--fs-1); color: var(--c-muted); }

/* Pest detail (dialog and standalone page) */
.pest-dialog {
  width: min(62rem, calc(100vw - 2rem));
  max-height: 92vh;
  padding: 0;
  overflow: auto;
  color: var(--c-text);
  background: var(--c-surface);
  border: var(--bw-hair) solid var(--c-border-strong);
  border-radius: var(--radius);
}
.pest-dialog::backdrop { background: var(--c-scrim); }
.pest-dialog form { position: sticky; top: 0; display: flex; justify-content: flex-end; padding: var(--sp-2) var(--sp-3); background: var(--c-surface); border-bottom: var(--bw-hair) solid var(--c-border); z-index: 1; }
.pest-dialog form button { background: transparent; color: var(--c-text); border-color: var(--c-border-strong); font-family: var(--font-mono); font-size: var(--fs-0); }
.pest-dialog .pest-detail { padding: var(--sp-4); }

.pest-detail > * + * { margin-top: var(--sp-4); }
.pest-detail__top { display: grid; grid-template-columns: minmax(0, 22rem) minmax(0, 1fr); gap: var(--sp-4); align-items: start; }
.pest-detail__top .media-frame { border: var(--bw-hair) solid var(--c-border); }
.pest-detail__top .media-frame img { display: block; width: 100%; aspect-ratio: 1 / 1; object-fit: cover; }
.pest-detail header { display: grid; gap: var(--sp-2); }
.pest-detail__sci { font-size: var(--fs-3); color: var(--c-muted); }
.pest-detail__name { font-size: var(--fs-5); }
.pest-detail__tagline { font-size: var(--fs-3); color: var(--c-muted); line-height: 1.4; }
.pest-detail__facts, .pest-detail__pairs { margin: 0; display: grid; gap: var(--sp-2); }
.pest-detail__facts { margin-top: var(--sp-2); padding-top: var(--sp-3); border-top: var(--bw-hair) solid var(--c-border); }
.pest-detail__facts div, .pest-detail__pairs div { display: grid; grid-template-columns: minmax(7rem, 10rem) 1fr; gap: var(--sp-3); font-size: var(--fs-1); }
.pest-detail dt { font-family: var(--font-mono); font-size: var(--fs-0); letter-spacing: 0.06em; text-transform: uppercase; color: var(--c-muted); padding-top: 0.15rem; }
.pest-detail dd { margin: 0; }
.pest-detail__section { padding-top: var(--sp-3); border-top: var(--bw-hair) solid var(--c-border); display: grid; gap: var(--sp-2); }
.pest-detail__section h2, .pest-detail__section h3 { font-size: var(--fs-1); font-family: var(--font-mono); font-weight: 400; letter-spacing: 0.08em; text-transform: uppercase; color: var(--c-muted); }
.pest-detail__section ul { padding-left: var(--sp-4); display: grid; gap: var(--sp-2); }
.pest-detail__myths { list-style: none; padding-left: 0 !important; }
.pest-detail__myths li { padding: var(--sp-3); background: var(--c-sunken); border-radius: var(--radius); display: grid; gap: var(--sp-1); }
.pest-detail__research { border-top: var(--bw-hair) solid var(--c-border); padding-top: var(--sp-3); }
.pest-detail__research summary { cursor: pointer; font-family: var(--font-mono); font-size: var(--fs-1); letter-spacing: 0.08em; text-transform: uppercase; color: var(--c-accent); }
.pest-detail__research > .pest-detail__section:first-of-type { margin-top: var(--sp-3); }
.pest-detail__research > .pest-detail__section { margin-top: var(--sp-3); }

@media (max-width: 48rem) {
  .pest-detail__top { grid-template-columns: 1fr; }
  .pest-detail__name { font-size: var(--fs-4); }
  .pest-detail__facts div, .pest-detail__pairs div { grid-template-columns: 1fr; gap: 0; }
}

/* Media */
img, video { max-width: 100%; height: auto; }
.media-frame { margin: 0; background: var(--c-sunken); overflow: hidden; }
.media-frame .media-fallback { display: none; padding: var(--sp-3); font-size: var(--fs-1); color: var(--c-muted); aspect-ratio: 1 / 1; align-content: center; text-align: center; }
.media-frame[data-state="failed"] img, .media-frame[data-state="failed"] video { display: none; }
.media-frame[data-state="failed"] .media-fallback { display: grid; }

/* Translation guide popups */
[popover] {
  width: min(36rem, calc(100vw - 2rem));
  max-height: 90vh;
  overflow: auto;
  color: var(--c-text);
  background: var(--c-surface);
  border: var(--bw-hair) solid var(--c-border-strong);
  border-radius: var(--radius);
  padding: var(--sp-4);
}
[popover]::backdrop { background: var(--c-scrim); }
.guide h2 { margin-bottom: var(--sp-3); }
.guide section { padding-block: var(--sp-3); border-top: var(--bw-hair) solid var(--c-border); }
.guide h3 { font-size: var(--fs-1); margin-bottom: var(--sp-2); }
.guide ol { padding-left: var(--sp-4); font-size: var(--fs-1); color: var(--c-muted); }
.guide__draft, .guide__note, .guide__notice { font-size: var(--fs-1); color: var(--c-muted); margin-top: var(--sp-2); }
.guide > button { margin-top: var(--sp-3); }

:focus-visible { outline: var(--bw-focus) solid var(--c-accent); outline-offset: 2px; }
[hidden] { display: none !important; }

/* Landing page */
.main--wide { max-width: none; padding: 0; }
.main--wide > * + * { margin-block-start: 0; }
a.button { display: inline-block; text-decoration: none; color: var(--c-on-accent); }
.button--ghost, a.button--ghost { background: transparent; color: var(--c-text); border-color: var(--c-border-strong); }

.hero { position: relative; background: var(--c-sunken); border-bottom: var(--bw-hair) solid var(--c-border); }
.hero__video { display: block; width: 100%; height: min(78vh, 46rem); object-fit: cover; }
.hero__toggle { position: absolute; top: var(--sp-3); right: var(--sp-3); background: transparent; color: #fff; border-color: transparent; filter: drop-shadow(0 0 3px rgba(0, 0, 0, 0.7)); font-family: var(--font-mono); font-size: var(--fs-0); display: inline-flex; align-items: center; justify-content: center; width: 2.75rem; height: 2.75rem; padding: 0; }
.hero__toggle[hidden] { display: none; }
.hero__icon { width: 1.25rem; height: 1.25rem; }
.hero__icon[hidden] { display: none; }
.hero__panel {
  position: absolute;
  left: max(var(--sp-4), calc((100% - var(--w-max)) / 2 + var(--sp-4)));
  bottom: var(--sp-5);
  width: min(36rem, calc(100% - 2 * var(--sp-4)));
  display: grid;
  gap: var(--sp-3);
  padding: var(--sp-4);
  background: var(--c-surface);
  border: var(--bw-hair) solid var(--c-border-strong);
}
.hero__panel h1 { font-size: clamp(var(--fs-4), 4vw, var(--fs-5)); }
.hero__lead { color: var(--c-muted); }
.hero__cta { display: flex; flex-wrap: wrap; gap: var(--sp-2); }
@media (max-width: 48rem) {
  .hero__video { height: 16rem; }
  .hero__panel { position: static; width: auto; border-width: 0; }
}

.section { padding-block: var(--sp-6); border-top: var(--bw-hair) solid var(--c-border); }
.section__inner { max-width: var(--w-max); margin-inline: auto; padding-inline: var(--sp-4); display: grid; gap: var(--sp-4); }
.section h2 { font-size: var(--fs-4); max-width: 42rem; }
.section__lead { max-width: 48rem; }
.section__sub { font-family: var(--font-mono); font-size: var(--fs-1); font-weight: 400; letter-spacing: 0.08em; text-transform: uppercase; color: var(--c-muted); }
.section__note { font-size: var(--fs-1); color: var(--c-muted); max-width: 48rem; }
/* Exterminator page: body text runs the full content width */
.oe-hero .section__lead, section[aria-labelledby="lic-title"] .section__lead, .flip-panel .section__lead, .flip-panel .section__note { max-width: none; }

.section--sources { background: var(--c-sunken); }

.stat-grid { list-style: none; display: grid; grid-template-columns: repeat(auto-fit, minmax(11rem, 1fr)); gap: var(--sp-3); }
.stat-grid--two { grid-template-columns: repeat(auto-fit, minmax(14rem, 1fr)); }
.stat { display: grid; gap: var(--sp-1); align-content: start; padding-top: var(--sp-3); border-top: var(--bw-focus) solid var(--c-accent); }
.stat-grid--open .stat { padding: var(--sp-3) 0 0; border: 0; border-top: var(--bw-focus) solid var(--c-accent); }
.stat__value { font-family: var(--font-mono); font-size: var(--fs-4); line-height: 1.1; color: var(--c-accent); }
.stat__label { font-size: var(--fs-1); color: var(--c-muted); }
.pest-list--featured { grid-template-columns: repeat(auto-fill, minmax(min(100%, 13rem), 1fr)); }

.fact-cols { display: grid; grid-template-columns: repeat(auto-fit, minmax(17rem, 1fr)); gap: var(--sp-5) var(--sp-4); }
.fact-col { display: grid; gap: var(--sp-3); align-content: start; padding-top: var(--sp-3); border-top: var(--bw-focus) solid var(--c-accent); }
.fact-col h3 { font-family: var(--font-mono); font-size: var(--fs-1); font-weight: 400; letter-spacing: 0.08em; text-transform: uppercase; }
.fact-list { list-style: none; display: grid; gap: var(--sp-3); }
.fact-list li { padding-left: var(--sp-3); border-left: var(--bw-hair) solid var(--c-border-strong); font-size: var(--fs-1); }
.fact-list--wide { grid-template-columns: repeat(auto-fit, minmax(18rem, 1fr)); }
.cite { font-family: var(--font-mono); font-size: 0.7em; margin-left: 2px; }
.cite a { text-decoration: none; }

.split { grid-template-columns: minmax(0, 1.2fr) minmax(0, 1fr); gap: var(--sp-5); align-items: start; }
.split--top { display: grid; }
@media (max-width: 52rem) { .split, .split--top { grid-template-columns: 1fr; } }

.steps { list-style: none; counter-reset: step; display: grid; gap: var(--sp-3); }
.steps li { counter-increment: step; display: grid; grid-template-columns: 2.5rem 1fr; column-gap: var(--sp-3); padding-top: var(--sp-3); border-top: var(--bw-hair) solid var(--c-border); }
.steps li::before { content: counter(step, decimal-leading-zero); grid-row: span 2; font-family: var(--font-mono); color: var(--c-accent); }
.steps p { color: var(--c-muted); font-size: var(--fs-1); }

.callout { display: grid; gap: var(--sp-3); padding: var(--sp-4); background: var(--c-sunken); border: var(--bw-hair) solid var(--c-border); border-left: var(--bw-focus) solid var(--c-accent); }
.callout__name { font-weight: 600; }

.sources { padding-left: var(--sp-4); display: grid; gap: var(--sp-2); font-size: var(--fs-0); }
.sources a { color: var(--c-muted); }
.sources li { scroll-margin-top: var(--sp-5); }

/* Landing refinements */
.split > div { display: grid; gap: var(--sp-4); align-content: start; min-width: 0; }
.fact-list--wide { grid-template-columns: repeat(auto-fit, minmax(min(100%, 24rem), 1fr)); }
.pest-list--featured { grid-template-columns: repeat(auto-fit, minmax(min(100%, 13rem), 1fr)); }
.callout > * { min-width: 0; }
.stat-grid--two .stat-grid--open .stat { padding: var(--sp-3) 0 0; border: 0; border-top: var(--bw-focus) solid var(--c-accent); }
.stat__value { font-size: var(--fs-3); }

.media-empty svg { display: block; width: 100%; height: auto; }

.section h2.section__sub { font-size: var(--fs-1); }
.split--top { margin-top: var(--sp-3); }

/* Landing v2: hidden heading, sources, diagram, charts */
.visually-hidden { position: absolute; width: 1px; height: 1px; margin: -1px; padding: 0; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0; }

.sources-box { border: var(--bw-hair) solid var(--c-border); background: var(--c-surface); }
.sources-box summary { display: flex; justify-content: space-between; align-items: center; padding: var(--sp-3); cursor: pointer; list-style: none; font-family: var(--font-mono); font-size: var(--fs-1); letter-spacing: 0.08em; text-transform: uppercase; }
.sources-box summary::-webkit-details-marker { display: none; }
.sources-box summary::after { content: "+"; font-size: var(--fs-3); }
.sources-box[open] summary::after { content: "\2212"; }
.sources-box .sources { padding: 0 var(--sp-3) var(--sp-3) var(--sp-5); }

.diagram { display: none; position: relative; width: min(100%, 30rem); aspect-ratio: 1; margin-inline: auto; }
.js-diagram .diagram { display: block; }
.js-diagram .steps--fallback { display: none; }
.diagram__ring { position: absolute; inset: 0; width: 100%; height: 100%; }
.diagram__ring circle { fill: none; stroke: var(--c-border-strong); stroke-width: 1; vector-effect: non-scaling-stroke; }
.diagram__center { position: absolute; inset: 0; display: grid; place-items: center; padding: 28%; text-align: center; font-family: var(--font-mono); font-size: var(--fs-0); letter-spacing: 0.1em; text-transform: uppercase; color: var(--c-muted); pointer-events: none; }
.diagram__node { position: absolute; z-index: 2; transform: translate(-50%, -50%); display: inline-flex; gap: var(--sp-2); align-items: center; white-space: nowrap; padding: var(--sp-2) var(--sp-3); background: var(--c-surface); color: var(--c-text); border: var(--bw-hair) solid var(--c-border-strong); }
.diagram__light { position: absolute; z-index: 1; width: 0.8rem; height: 0.8rem; margin: -0.4rem 0 0 -0.4rem; border-radius: 50%; background: #f5a524; box-shadow: 0 0 0 3px rgba(245, 165, 36, 0.3), 0 0 14px 4px rgba(245, 165, 36, 0.65); pointer-events: none; }
.diagram__node:hover { border-color: var(--c-accent); }
.diagram__node[aria-selected="true"] { background: var(--c-accent); color: var(--c-on-accent); border-color: var(--c-accent); }
.diagram__n { font-family: var(--font-mono); font-size: var(--fs-0); }
.diagram__node--1 { left: 50%; top: 12%; }
.diagram__node--2 { left: 82.9%; top: 31%; }
.diagram__node--3 { left: 82.9%; top: 69%; }
.diagram__node--4 { left: 50%; top: 88%; }
.diagram__node--5 { left: 17.1%; top: 69%; }
.diagram__node--6 { left: 17.1%; top: 31%; }
.diagram__panel { display: grid; gap: var(--sp-2); padding: var(--sp-3) var(--sp-4); background: var(--c-sunken); border-left: var(--bw-focus) solid var(--c-accent); }
.diagram__num { font-family: var(--font-mono); font-size: var(--fs-3); color: var(--c-accent); }
@media (max-width: 30rem) { .diagram__node { padding: var(--sp-1) var(--sp-2); font-size: var(--fs-0); } }

.chart-row { display: grid; grid-template-columns: repeat(auto-fit, minmax(17rem, 1fr)); gap: var(--sp-4); align-items: start; }
.chart-row--two { grid-template-columns: minmax(0, 1.1fr) minmax(0, 1fr); }
@media (max-width: 52rem) { .chart-row--two { grid-template-columns: 1fr; } }
.chart, .rules { margin: 0; display: grid; gap: var(--sp-3); align-content: start; padding-top: var(--sp-3); border-top: var(--bw-focus) solid var(--c-accent); }
.chart__title { font-family: var(--font-mono); font-size: var(--fs-1); font-weight: 400; letter-spacing: 0.08em; text-transform: uppercase; }
.chart__big { font-family: var(--font-mono); font-size: var(--fs-4); line-height: 1.1; color: var(--c-accent); }
.chart__readout { min-height: 1.6em; font-family: var(--font-mono); font-size: var(--fs-0); color: var(--c-muted); }
.chart__caption { font-size: var(--fs-1); color: var(--c-muted); }
.bars { width: 100%; height: auto; }
.bars__axis { stroke: var(--c-border-strong); stroke-width: 1; }
.bar rect { fill: var(--c-accent); }
.bar:hover rect, .bar:focus rect { fill: var(--c-text); }
.bar:focus { outline: none; }
.bar:focus-visible rect { stroke: var(--c-text); stroke-width: 3; }
.bar text { font-family: var(--font-mono); font-size: 13px; fill: var(--c-text); }
.bar .bar__label { fill: var(--c-muted); }

/* Button shine: a soft band of light sweeps across on hover and keyboard focus. */
button::after, .button::after {
  content: "";
  position: absolute;
  top: 0;
  bottom: 0;
  left: -75%;
  width: 50%;
  background: linear-gradient(105deg, transparent 0%, var(--shine, rgba(255, 255, 255, 0.5)) 50%, transparent 100%);
  transform: skewX(-20deg);
  pointer-events: none;
  z-index: 1;
  transition: left 0.7s ease;
}
button:hover::after, button:focus-visible::after, .button:hover::after, .button:focus-visible::after { left: 125%; }
button:disabled::after { display: none; }
button:not(:disabled):not(.hero__toggle):not(.flip):hover, .button:hover, button:not(:disabled):not(.hero__toggle):not(.flip):focus-visible { box-shadow: 0 3px 12px rgba(0, 0, 0, 0.22); }
.lang-toggle button, #account-slot button, #account-slot a, .button--ghost, .pest-dialog form button, .diagram__node { --shine: color-mix(in srgb, var(--c-accent) 24%, transparent); }
.diagram__node[aria-selected="true"], .hero__toggle { --shine: rgba(255, 255, 255, 0.55); }
@media (prefers-reduced-motion: reduce) {
  button::after, .button::after { transition: none; }
}

/* Ontario pest map */
.omap { display: grid; gap: var(--sp-3); }
.omap__bar { display: flex; flex-wrap: wrap; gap: var(--sp-2); }
.omap__view[aria-pressed="true"] { background: var(--c-text); border-color: var(--c-text); color: var(--c-surface); }
.omap__stage { background: #0d1a1c; border: var(--bw-hair) solid var(--c-border-strong); }
.omap__svg { display: block; width: 100%; height: auto; max-height: min(78vh, 46rem); margin-inline: auto; }
.omap__land { fill: #15292b; stroke: #3c7e78; stroke-width: 1; vector-effect: non-scaling-stroke; stroke-linejoin: round; }
.omap__glow--t1 { color: #ff4a3a; }
.omap__glow--t2 { color: #ff9b2f; }
.omap__glow--t3 { color: #ffd53f; }
.omap__glow--t4 { color: #46d2c4; }
.bulb { cursor: pointer; outline: none; }
.bulb--t1 { color: #ff4a3a; }
.bulb--t2 { color: #ff9b2f; }
.bulb--t3 { color: #ffd53f; }
.bulb--t4 { color: #46d2c4; }
.bulb__halo { pointer-events: none; }
.bulb__core { fill: currentColor; stroke: #fff; stroke-width: 1; vector-effect: non-scaling-stroke; }
.bulb__ring { fill: none; stroke: transparent; stroke-width: 2; vector-effect: non-scaling-stroke; }
.omap__label { fill: #fff; font-family: var(--font-mono); paint-order: stroke; stroke: #0d1a1c; stroke-width: 4px; stroke-linejoin: round; vector-effect: non-scaling-stroke; pointer-events: none; }
.bulb:hover .bulb__ring, .bulb:focus-visible .bulb__ring { stroke: rgba(255, 255, 255, 0.55); }
.bulb--on .bulb__ring { stroke: #fff; }
.bulb--t1 .bulb__halo { animation: omap-glow 3.2s ease-in-out infinite; }
@keyframes omap-glow { 0%, 100% { opacity: 0.75; } 50% { opacity: 1; } }
@media (prefers-reduced-motion: reduce) { .bulb--t1 .bulb__halo { animation: none; } }
.omap__legend { list-style: none; display: flex; flex-wrap: wrap; gap: var(--sp-2) var(--sp-4); font-size: var(--fs-1); color: var(--c-muted); }
.omap__legend-title { font-family: var(--font-mono); font-size: var(--fs-0); letter-spacing: 0.08em; text-transform: uppercase; }
.omap__swatch { display: inline-block; width: 0.7rem; height: 0.7rem; margin-right: var(--sp-2); border-radius: 50%; vertical-align: baseline; }
.omap__swatch--t1 { background: #ff4a3a; box-shadow: 0 0 8px #ff4a3a; }
.omap__swatch--t2 { background: #ff9b2f; box-shadow: 0 0 8px #ff9b2f; }
.omap__swatch--t3 { background: #ffd53f; box-shadow: 0 0 8px #ffd53f; }
.omap__swatch--t4 { background: #46d2c4; box-shadow: 0 0 8px #46d2c4; }
.omap__detail { padding: var(--sp-3) var(--sp-4); background: var(--c-sunken); border-left: var(--bw-focus) solid var(--c-accent); font-family: var(--font-mono); font-size: var(--fs-2, var(--fs-1)); }
.omap__data { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.2fr); gap: var(--sp-5); align-items: start; }
@media (max-width: 52rem) { .omap__data { grid-template-columns: 1fr; } }
.omap__about { display: grid; gap: var(--sp-3); font-size: var(--fs-1); }
.omap__table { width: 100%; border-collapse: collapse; font-size: var(--fs-1); }
.omap__table caption { text-align: left; padding-bottom: var(--sp-2); font-family: var(--font-mono); font-size: var(--fs-0); letter-spacing: 0.08em; text-transform: uppercase; color: var(--c-muted); }
.omap__table th, .omap__table td { padding: var(--sp-1) var(--sp-2); text-align: left; border-bottom: var(--bw-hair) solid var(--c-border); font-weight: 400; }
.omap__table thead th { font-family: var(--font-mono); font-size: var(--fs-0); color: var(--c-muted); }
.omap__rank { font-family: var(--font-mono); width: 3.5rem; }
.omap__table tr.is-selected { background: var(--c-sunken); }
.omap__table tr.is-selected th, .omap__table tr.is-selected td { border-bottom-color: var(--c-accent); }
.omap__rowbtn { padding: 0; background: transparent; border: 0; color: var(--c-text); text-align: left; text-decoration: underline; text-decoration-color: var(--c-border-strong); text-underline-offset: 3px; overflow: visible; }
.omap__rowbtn:hover { color: var(--c-accent); text-decoration-color: var(--c-accent); box-shadow: none; }
.omap__rowbtn::after { display: none; }

/* Licensing flip cards */
.flip-row { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: var(--sp-4); }
@media (max-width: 52rem) { .flip-row { grid-template-columns: minmax(0, 20rem); justify-content: center; } }
.flip { display: block; position: relative; width: 100%; aspect-ratio: 3 / 4; padding: 0; overflow: visible; background: transparent; border: 0; border-radius: 0; box-shadow: none; color: #fff; text-align: left; perspective: 1200px; }
.flip::after { display: none; }
.flip__inner { position: absolute; inset: 0; display: block; transform-style: preserve-3d; transition: transform 0.75s cubic-bezier(0.2, 0.7, 0.2, 1); }
.flip[aria-expanded="true"] .flip__inner { transform: rotateY(180deg); }
.flip__face { position: absolute; inset: 0; display: flex; flex-direction: column; overflow: hidden; backface-visibility: hidden; -webkit-backface-visibility: hidden; background: #0d1a1c; border: var(--bw-hair) solid #2f6b66; }
.flip__front { justify-content: flex-end; gap: var(--sp-2); padding: var(--sp-4); background: radial-gradient(circle at 85% 8%, rgba(70, 210, 196, 0.28), transparent 55%), linear-gradient(180deg, #112427 0%, #0b1517 100%); transition: border-color 0.2s ease, box-shadow 0.3s ease; }
.flip__front::before { content: ""; position: absolute; top: 0; bottom: 0; left: -75%; width: 50%; background: linear-gradient(105deg, transparent, rgba(255, 255, 255, 0.18), transparent); transform: skewX(-20deg); transition: left 0.8s ease; pointer-events: none; }
.flip:hover .flip__front, .flip:focus-visible .flip__front { border-color: #46d2c4; box-shadow: 0 0 26px rgba(70, 210, 196, 0.28); }
.flip:hover .flip__front::before, .flip:focus-visible .flip__front::before { left: 125%; }
.flip__back { transform: rotateY(180deg); }
.flip__video { display: block; width: 100%; height: 100%; object-fit: cover; }
.flip__num { position: absolute; top: var(--sp-4); left: var(--sp-4); font-family: var(--font-mono); font-size: var(--fs-1); letter-spacing: 0.12em; color: #46d2c4; }
.flip__title { font-size: var(--fs-4); line-height: 1.15; font-weight: 600; }
.flip__sub { font-size: var(--fs-1); color: rgba(255, 255, 255, 0.72); }
.flip__langs { font-family: var(--font-mono); font-size: var(--fs-0); letter-spacing: 0.04em; color: #ffd53f; }
.flip__hint { margin-top: var(--sp-3); padding-top: var(--sp-2); border-top: var(--bw-hair) solid rgba(255, 255, 255, 0.22); font-family: var(--font-mono); font-size: var(--fs-0); letter-spacing: 0.1em; text-transform: uppercase; color: rgba(255, 255, 255, 0.6); }
@media (prefers-reduced-motion: reduce) { .flip__inner { transition: none; } .flip__front::before { transition: none; } }
/* Assisted learning stepper */
.stepper { display: flex; align-items: stretch; gap: var(--sp-2); }
.stepper__step { flex: 1 1 0; display: grid; gap: var(--sp-1); align-content: start; min-width: 0; padding: var(--sp-3); text-align: left; color: var(--c-text); background: transparent; border: var(--bw-hair) solid var(--c-border); border-top: var(--bw-focus) solid var(--c-border); border-radius: 0; box-shadow: none; transition: border-color 0.15s ease, background-color 0.15s ease; }
.stepper__step::after { display: none; }
.stepper__step:hover { border-color: var(--c-border-strong); background: var(--c-sunken); box-shadow: none; }
.stepper__step[aria-pressed="true"] { border-color: var(--c-border-strong); border-top-color: var(--c-accent); background: var(--c-sunken); }
.stepper__title { font-size: var(--fs-2); line-height: 1.2; font-weight: 700; letter-spacing: 0.04em; }
.stepper__sub { font-size: var(--fs-1); color: var(--c-muted); }
.stepper__sep { flex: 0 0 auto; display: flex; align-items: center; color: var(--c-muted); }
.stepper__arrow { display: block; }
@media (max-width: 52rem) { .stepper { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); } .stepper__sep { display: none; } }
@media (max-width: 30rem) { .stepper { grid-template-columns: minmax(0, 1fr); } }
@media (prefers-reduced-motion: reduce) { .stepper__step { transition: none; } }
.flip-panel { display: grid; gap: var(--sp-4); margin-top: var(--sp-5); padding-top: var(--sp-4); border-top: var(--bw-hair) solid var(--c-border-strong); }
.flip-panel h3 { font-size: var(--fs-3); }
.fact-col h4 { font-family: var(--font-mono); font-size: var(--fs-1); font-weight: 400; letter-spacing: 0.08em; text-transform: uppercase; }
.fact-list--steps { list-style: decimal; padding-left: var(--sp-4); }
.fact-list--steps li { padding-left: var(--sp-1); border-left: 0; }