/* The Scheme Brief - site styles. Tokens verbatim from brand-kit/brand-kit.md
   (OKLCH source of truth; hex fallbacks are the kit's own computed sRGB). */

@font-face {
  font-family: "Public Sans";
  src: url("/assets/fonts/publicsans-var.woff2") format("woff2");
  font-weight: 100 900; font-style: normal; font-display: swap;
}
@font-face {
  font-family: "Petrona";
  src: url("/assets/fonts/petrona-var.woff2") format("woff2");
  font-weight: 100 900; font-style: normal; font-display: swap;
}
@font-face {
  font-family: "Petrona";
  src: url("/assets/fonts/petrona-italic-var.woff2") format("woff2");
  font-weight: 100 900; font-style: italic; font-display: swap;
}

:root {
  --ink:   #171d1f;
  --paper: #f4f8f6;
  --fog:   #e6edeb;

  --jade:          #0a5d51;
  --jade-deep:     #07483e;
  --jade-light:    #8dcdbf;
  --jade-tint:     #e1f1ed;
  --channel:       #2b4c5f;
  --channel-deep:  #213b4b;
  --channel-light: #a0c4d8;
  --channel-tint:  #e5eef4;
  --bronze:        #77522d;
  --bronze-deep:   #5e4123;
  --bronze-light:  #debe9a;
  --bronze-tint:   #f6ede3;

  --font-sans:  "Public Sans", system-ui, sans-serif;
  --font-serif: "Petrona", Georgia, serif;

  /* semantic cuts (light theme) */
  --ground: var(--paper);
  --ref-ground: var(--fog);
  --text: var(--ink);
  --muted: #46534f;
  --hairline: #c3d0cc;
  --link: var(--jade);
  --link-hover: var(--jade-deep);
  --cat-regulation-and-safeguards: var(--jade);
  --cat-providers: var(--jade-deep);
  --cat-data: var(--channel);
  --cat-policy-and-reform: var(--channel-deep);
  --cat-pricing-and-funding: var(--bronze);
  --cat-workforce: var(--bronze-deep);
}

@media (prefers-color-scheme: dark) {
  :root {
    --ground: var(--ink);
    --ref-ground: #1f2729;
    --text: var(--paper);
    --muted: #a7b4b0;
    --hairline: #3a4548;
    --link: var(--jade-light);
    --link-hover: #b1ded3;
    --cat-regulation-and-safeguards: var(--jade-light);
    --cat-providers: var(--jade-light);
    --cat-data: var(--channel-light);
    --cat-policy-and-reform: var(--channel-light);
    --cat-pricing-and-funding: var(--bronze-light);
    --cat-workforce: var(--bronze-light);
  }
}

/* -- Base -- */
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--ground);
  color: var(--text);
  font-family: var(--font-serif);
  font-size: 18.5px;
  line-height: 1.6;
  font-optical-sizing: auto;
}
[hidden] { display: none !important; }
img { max-width: 100%; height: auto; }
a { color: var(--link); text-underline-offset: 2px; }
a:hover { color: var(--link-hover); }
h1, h2, h3, h4 { font-family: var(--font-sans); font-weight: 700; line-height: 1.18; }
h1 a, h2 a, h3 a { color: inherit; text-decoration: none; }
h1 a:hover, h2 a:hover, h3 a:hover { color: var(--link); }
table, .data, .figures, .chip, .stat, .dateline, .date { font-variant-numeric: tabular-nums lining-nums; }
.wrap { max-width: 1120px; margin: 0 auto; padding: 0 20px; }
.skip {
  position: absolute; left: -999px; top: 0; background: var(--jade); color: var(--paper);
  padding: 8px 14px; z-index: 20; font-family: var(--font-sans);
}
.skip:focus { left: 8px; }

/* -- Header -- */
.site-head { border-bottom: 2px solid var(--ink); background: var(--ground); }
.site-head .plate { display: flex; justify-content: center; padding: 26px 16px 18px; }
.site-head img { display: block; width: 300px; height: auto; }
.logo-dark { display: none; }
@media (prefers-color-scheme: dark) {
  .site-head { border-bottom-color: var(--hairline); }
  .logo-light { display: none; }
  .logo-dark { display: block; }
}
.site-nav { border-top: 1px solid var(--hairline); }
.site-nav ul {
  list-style: none; margin: 0 auto; padding: 0 16px; max-width: 1120px;
  display: flex; flex-wrap: wrap; justify-content: center; gap: 2px 26px;
}
.site-nav a {
  display: inline-block; padding: 10px 2px 12px;
  font-family: var(--font-sans); font-weight: 700; font-size: 12.5px;
  letter-spacing: 0.12em; text-transform: uppercase;
  color: var(--text); text-decoration: none; border-bottom: 3px solid transparent;
}
.site-nav a:hover { color: var(--link); }
body[data-page="regulation"] .site-nav a[data-nav="regulation"],
body[data-page="providers"] .site-nav a[data-nav="providers"],
body[data-page="pricing"] .site-nav a[data-nav="pricing"],
body[data-page="policy"] .site-nav a[data-nav="policy"],
body[data-page="data"] .site-nav a[data-nav="data"] { border-bottom-color: var(--jade); }

/* -- Kickers + category rules -- */
.kicker {
  font-family: var(--font-sans); font-weight: 700; font-size: 12px;
  letter-spacing: 0.12em; text-transform: uppercase; margin: 0 0 6px;
}
.kicker a { text-decoration: none; }
[data-cat="regulation-and-safeguards"] .kicker, [data-cat="regulation-and-safeguards"] .kicker a { color: var(--cat-regulation-and-safeguards); }
[data-cat="providers"] .kicker, [data-cat="providers"] .kicker a { color: var(--cat-providers); }
[data-cat="data"] .kicker, [data-cat="data"] .kicker a { color: var(--cat-data); }
[data-cat="policy-and-reform"] .kicker, [data-cat="policy-and-reform"] .kicker a { color: var(--cat-policy-and-reform); }
[data-cat="pricing-and-funding"] .kicker, [data-cat="pricing-and-funding"] .kicker a { color: var(--cat-pricing-and-funding); }
[data-cat="workforce"] .kicker, [data-cat="workforce"] .kicker a { color: var(--cat-workforce); }

/* -- Front page -- */
.front { padding: 30px 0 8px; }
.front-lead { display: grid; grid-template-columns: minmax(0, 7fr) minmax(0, 4fr); gap: 34px; padding-bottom: 26px; }
.lead-story .lead-art { display: block; margin: 0 0 14px; }
.lead-story .lead-art img { display: block; width: 100%; }
.lead-story h2 { font-size: 31px; margin: 4px 0 10px; }
.lead-story .standfirst { font-size: 19px; line-height: 1.5; margin: 0 0 8px; color: var(--text); }
.front-rail { display: flex; flex-direction: column; gap: 22px; }
.front-grid {
  display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 26px 30px;
  border-top: 1px solid var(--hairline); padding: 26px 0 18px;
}
.story-card { border-top: 3px solid var(--hairline); padding-top: 10px; }
.story-card[data-cat="regulation-and-safeguards"] { border-top-color: var(--cat-regulation-and-safeguards); }
.story-card[data-cat="providers"] { border-top-color: var(--cat-providers); }
.story-card[data-cat="data"] { border-top-color: var(--cat-data); }
.story-card[data-cat="policy-and-reform"] { border-top-color: var(--cat-policy-and-reform); }
.story-card[data-cat="pricing-and-funding"] { border-top-color: var(--cat-pricing-and-funding); }
.story-card[data-cat="workforce"] { border-top-color: var(--cat-workforce); }
.story-card h3 { font-size: 19.5px; margin: 2px 0 8px; }
.story-card p { font-size: 15.5px; line-height: 1.5; margin: 0 0 8px; color: var(--muted); }
.story-card p.date, .lead-story .date { font-family: var(--font-sans); font-size: 12.5px; color: var(--muted); margin: 0; }
.front-note {
  border-top: 1px solid var(--hairline); padding: 14px 0 4px;
  font-family: var(--font-sans); font-size: 13.5px; color: var(--muted);
}

/* -- Section fronts -- */
.section-head { padding: 26px 0 8px; }
.breadcrumb { font-family: var(--font-sans); font-size: 12.5px; margin: 0 0 14px; color: var(--muted); }
.breadcrumb a { color: var(--muted); }
.breadcrumb a:hover { color: var(--link); }
.section-hero { margin: 0 0 16px; }
.section-hero img { display: block; width: 100%; }
.section-head h1 { font-size: 34px; margin: 2px 0 8px; }
.section-head .explainer { font-size: 18px; color: var(--muted); max-width: 62ch; margin: 0 0 6px; }
.section-list { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 26px 34px; padding: 22px 0 30px; }

/* -- Article -- */
.article { max-width: 760px; margin: 0 auto; padding: 26px 0 10px; }
.article-head .strip-art { margin: 0 0 16px; }
.article-head .strip-art img { display: block; width: 100%; }
.article-head h1 { font-size: 33px; margin: 4px 0 12px; }
.article-head .standfirst { font-size: 19.5px; line-height: 1.55; margin: 0 0 14px; }
.dateline {
  display: flex; flex-wrap: wrap; align-items: center; gap: 10px 16px;
  font-family: var(--font-sans); font-size: 13px; color: var(--muted);
  border-top: 1px solid var(--hairline); border-bottom: 1px solid var(--hairline);
  padding: 9px 0; margin: 0 0 22px;
}
.article-body { font-size: 18.5px; }
.article-body h2 { font-size: 23px; margin: 34px 0 10px; }
.article-body h3 { font-size: 18.5px; margin: 26px 0 8px; }
.article-body p { margin: 0 0 16px; }
.article-body ul, .article-body ol { margin: 0 0 16px; padding-left: 26px; }
.article-body li { margin: 0 0 8px; }
.article-body cite, .doc-title { font-style: italic; }
blockquote {
  margin: 20px 0; padding: 2px 0 2px 18px;
  border-left: 3px solid var(--jade);
  font-size: 17.5px; color: var(--text);
}
blockquote p { margin: 0 0 10px; }
blockquote footer { font-family: var(--font-sans); font-size: 13px; color: var(--muted); }

/* -- Citation furniture -- */
.chip {
  display: inline-block; font-family: var(--font-sans); font-weight: 600;
  font-size: 11.5px; letter-spacing: 0.05em; text-transform: uppercase;
  border: 1px solid var(--jade); color: var(--text); background: var(--ground);
  border-radius: 3px; padding: 2px 9px; text-decoration: none;
}
a.chip:hover { color: var(--link-hover); border-color: var(--link-hover); }
@media (prefers-color-scheme: dark) { .chip { border-color: var(--jade-light); } }

.methodology {
  background: var(--ref-ground);
  border-top: 1px solid var(--text); border-bottom: 1px solid var(--text);
  font-family: var(--font-sans); font-size: 14px; line-height: 1.55;
  padding: 14px 18px; margin: 26px 0;
}
.methodology h2, .methodology h3 {
  font-size: 12px; letter-spacing: 0.12em; text-transform: uppercase; margin: 0 0 8px;
}
.methodology p { margin: 0 0 10px; }
.methodology p:last-child { margin: 0; }

.sources {
  border-top: 2px solid var(--text); margin: 36px 0 8px; padding-top: 14px;
  font-family: var(--font-sans); font-size: 14px;
}
.sources h2 { font-size: 12.5px; letter-spacing: 0.12em; text-transform: uppercase; margin: 0 0 10px; }
.sources ol { margin: 0; padding-left: 22px; }
.sources li { margin: 0 0 7px; line-height: 1.45; }
.sources li a { overflow-wrap: anywhere; }

/* -- Stats + figures -- */
.stat-row {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); gap: 14px;
  margin: 4px 0 24px;
}
.stat { border-top: 3px solid var(--jade); padding-top: 8px; }
.stat .n { display: block; font-family: var(--font-sans); font-weight: 700; font-size: 30px; line-height: 1.1; }
.stat .l { display: block; font-family: var(--font-sans); font-size: 13px; color: var(--muted); margin-top: 4px; line-height: 1.4; }
[data-cat="data"] .stat { border-top-color: var(--cat-data); }
[data-cat="pricing-and-funding"] .stat { border-top-color: var(--cat-pricing-and-funding); }
[data-cat="policy-and-reform"] .stat { border-top-color: var(--cat-policy-and-reform); }
[data-cat="providers"] .stat { border-top-color: var(--cat-providers); }

figure.chart { margin: 26px 0; }
figure.chart svg { display: block; width: 100%; height: auto; }
figure.chart figcaption {
  font-family: var(--font-sans); font-size: 13.5px; color: var(--muted); margin-top: 8px; line-height: 1.5;
}
.chart .axis text, .chart .tick text, .chart text {
  font-family: var(--font-sans);
  font-variant-numeric: tabular-nums lining-nums;
}
.chart .grid line, .chart line.grid { stroke: var(--hairline); stroke-width: 1; }
.chart .axis line, .chart .axis path { stroke: var(--muted); }
.chart .lbl { fill: var(--text); }
.chart .lbl-muted { fill: var(--muted); }
.chart .s-jade { fill: var(--jade); }
.chart .s-channel { fill: var(--channel); }
.chart .s-bronze { fill: var(--bronze); }
.chart .l-jade { stroke: var(--jade); }
@media (prefers-color-scheme: dark) {
  .chart .s-jade { fill: var(--jade-light); }
  .chart .s-channel { fill: var(--channel-light); }
  .chart .s-bronze { fill: var(--bronze-light); }
  .chart .l-jade { stroke: var(--jade-light); }
}
.chart .gap { stroke: var(--ground); stroke-width: 2; }
.legend {
  display: flex; flex-wrap: wrap; gap: 8px 20px; margin: 0 0 8px;
  font-family: var(--font-sans); font-size: 13px; color: var(--text);
}
.legend .sw { display: inline-block; width: 12px; height: 12px; border-radius: 3px; margin-right: 6px; vertical-align: -1px; }
.sw-jade { background: var(--jade); } .sw-channel { background: var(--channel); } .sw-bronze { background: var(--bronze); }
@media (prefers-color-scheme: dark) {
  .sw-jade { background: var(--jade-light); } .sw-channel { background: var(--channel-light); } .sw-bronze { background: var(--bronze-light); }
}
.visually-hidden {
  position: absolute; width: 1px; height: 1px; overflow: hidden;
  clip: rect(0 0 0 0); white-space: nowrap;
}

table.figures { border-collapse: collapse; width: 100%; font-family: var(--font-sans); font-size: 14.5px; margin: 18px 0 24px; }
table.figures caption { text-align: left; font-weight: 700; font-size: 13px; letter-spacing: 0.08em; text-transform: uppercase; padding-bottom: 8px; }
table.figures th, table.figures td { text-align: left; padding: 7px 12px 7px 0; border-bottom: 1px solid var(--hairline); vertical-align: top; }
table.figures th { font-size: 12.5px; letter-spacing: 0.06em; text-transform: uppercase; color: var(--muted); }
table.figures td.num, table.figures th.num { text-align: right; padding-right: 0; }
.table-scroll { overflow-x: auto; }

/* -- Milestone spine (reform countdown furniture; plain rules, not the device) -- */
.milestones { list-style: none; margin: 20px 0 26px; padding: 0; }
.milestones li {
  position: relative; padding: 0 0 18px 26px;
  border-left: 2px solid var(--hairline);
  margin-left: 6px;
}
.milestones li::before {
  content: ""; position: absolute; left: -7px; top: 6px;
  width: 12px; height: 12px; border-radius: 50%;
  background: var(--ground); border: 2px solid var(--jade);
}
.milestones li.done::before { background: var(--jade); }
.milestones .m-date { display: block; font-family: var(--font-sans); font-weight: 700; font-size: 13px; letter-spacing: 0.08em; text-transform: uppercase; margin-bottom: 2px; }
.milestones .m-what { display: block; font-size: 17px; line-height: 1.5; }

/* -- Support pages -- */
.page-head { max-width: 760px; margin: 0 auto; padding: 30px 0 4px; }
.page-head h1 { font-size: 32px; margin: 2px 0 10px; }
.page-head .standfirst { font-size: 19px; line-height: 1.55; }
.page-body { max-width: 760px; margin: 0 auto; padding: 6px 0 30px; }
.page-body h2 { font-size: 22px; margin: 30px 0 10px; }
.page-body p { margin: 0 0 15px; }
.ref-page { background: var(--ref-ground); }

/* -- Tip forms -- */
.tip-forms { max-width: 760px; margin: 0 auto; padding: 8px 0 34px; }
.form-block { border-top: 2px solid var(--text); margin-top: 26px; padding-top: 14px; }
.form-block h2 { font-size: 22px; margin: 0 0 8px; }
.form-block > p { font-size: 16.5px; margin: 0 0 14px; }
.form-block form { display: grid; gap: 12px; }
.form-block label { display: block; font-family: var(--font-sans); font-weight: 600; font-size: 13.5px; margin-bottom: 4px; }
.form-block .opt { font-weight: 400; color: var(--muted); }
.form-block input[type="text"], .form-block input[type="email"], .form-block input[type="tel"], .form-block textarea {
  width: 100%; padding: 9px 10px; font: inherit; font-size: 16px;
  color: var(--text); background: var(--ground);
  border: 1px solid var(--muted); border-radius: 4px;
}
.form-block textarea { min-height: 120px; }
.form-block input:focus, .form-block textarea:focus { outline: 2px solid var(--jade); outline-offset: 1px; }
.form-block button {
  justify-self: start; font-family: var(--font-sans); font-weight: 700; font-size: 15px;
  color: var(--paper); background: var(--jade); border: 0; border-radius: 4px;
  padding: 10px 22px; cursor: pointer;
}
.form-block button:hover { background: var(--jade-deep); }
.form-note { font-family: var(--font-sans); font-size: 13.5px; color: var(--muted); }
[data-tip-success], [data-tip-error] {
  font-family: var(--font-sans); font-size: 15px; padding: 10px 14px; border-radius: 4px;
}
[data-tip-success] { background: var(--jade-tint); color: var(--jade-deep); }
[data-tip-error] { background: var(--bronze-tint); color: var(--bronze-deep); }
@media (prefers-color-scheme: dark) {
  [data-tip-success] { background: #12332e; color: var(--jade-light); }
  [data-tip-error] { background: #33271a; color: var(--bronze-light); }
}

/* -- Ad slot -- */
.ad-slot {
  border: 1px dashed var(--hairline); border-radius: 4px;
  padding: 18px; margin: 26px auto; max-width: 760px; text-align: center;
}
.ad-slot .ad-label {
  font-family: var(--font-sans); font-size: 11px; letter-spacing: 0.14em;
  text-transform: uppercase; color: var(--muted);
}

/* ── Sponsored-content disclosure (kernel/sponsored-content-convention.md) ──
   Class names are the fleet-wide contract; the styling is this masthead's own.
   Driven off --link/--ground/--text so it re-themes with the page rather than
   pinning a raw palette colour that would go unreadable in the other theme. */
.disclosure-banner {
  border: 1px solid var(--link); border-left: 4px solid var(--link);
  background: color-mix(in oklab, var(--link) 10%, var(--ground));
  color: var(--text);
  padding: 0.9rem 1.1rem; margin: 0 0 1.6rem;
  font-family: var(--font-sans); font-size: 0.85rem; line-height: 1.55;
}
.disclosure-label {
  display: block; font-size: 0.68rem; font-weight: 700;
  letter-spacing: 0.09em; text-transform: uppercase;
  color: color-mix(in oklab, var(--link) 55%, var(--text));
  margin-bottom: 0.4rem;
}
.disclosure-banner p { margin: 0.3rem 0; }
.disclosure-banner p:first-of-type { margin-top: 0; }
.disclosure-banner p:last-of-type { margin-bottom: 0; }
.disclosure-banner a { color: color-mix(in oklab, var(--link) 55%, var(--text)); font-weight: 600; }

/* -- Footer -- */
.site-foot { background: var(--ink); color: var(--paper); margin-top: 40px; }
.site-foot a { color: var(--jade-light); }
.site-foot a:hover { color: #b1ded3; }
.foot-grid {
  display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 3fr) minmax(0, 3fr);
  gap: 30px; padding: 34px 0 10px;
}
.foot-plate img { width: 264px; height: auto; }
.credo { font-size: 15px; line-height: 1.55; color: #cdd6d3; max-width: 46ch; }
.site-foot h2 {
  font-size: 12px; letter-spacing: 0.12em; text-transform: uppercase;
  color: #9fb0ab; margin: 6px 0 10px;
}
.site-foot ul { list-style: none; margin: 0; padding: 0; font-family: var(--font-sans); font-size: 15px; }
.site-foot li { margin: 0 0 8px; }
.foot-base { border-top: 1px solid #3a4548; padding: 16px 0 26px; font-family: var(--font-sans); font-size: 13px; color: #9fb0ab; }
.foot-base p { margin: 0 0 8px; max-width: 90ch; }

/* -- Responsive -- */
@media (max-width: 900px) {
  .front-lead { grid-template-columns: 1fr; gap: 24px; }
  .front-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .section-list { grid-template-columns: 1fr; }
  .foot-grid { grid-template-columns: 1fr; gap: 18px; }
}
@media (max-width: 560px) {
  body { font-size: 17.5px; }
  .front-grid { grid-template-columns: 1fr; }
  .lead-story h2 { font-size: 26px; }
  .article-head h1, .section-head h1 { font-size: 27px; }
  .site-head img { width: 250px; }
  .site-nav ul { gap: 0 18px; }
}