/* =============================================================
   PRIOR AUTHORIZATION ACCOUNTABILITY — Shared Design System
   Public-accountability site on prior-authorization delays and
   excess cancer-mortality risk.
   Aesthetic: serious data-journalism / medical-journal.
   Link on every page as:  <link rel="stylesheet" href="styles.css">
   ============================================================= */

/* ---------- Design tokens ---------- */
:root{
  /* core palette (locked to the project spec) */
  --ink:#11161c;          /* primary text */
  --ink-soft:#3a4654;     /* secondary text */
  --line:#dfe4ea;         /* soft hairlines/borders */
  --paper:#f7f8fa;        /* page background */
  --card:#ffffff;         /* surface */
  --accent:#b3261e;       /* sparing emphasis / CTA red */
  --accent-dark:#8f1d16;  /* accent hover */
  --accent-soft:#fbecea;  /* accent tint background */
  --good:#0f7b54;         /* good-green */
  --good-soft:#e7f3ee;
  --amber:#9a6a00;        /* callout text */
  --amber-ink:#5d4200;
  --amber-line:#efd99a;
  --amber-soft:#fdf3df;   /* callout background */
  --muted:#7a8694;        /* meta / captions */

  /* type */
  --serif:Georgia,"Times New Roman","Iowan Old Style",serif;
  --sans:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  --mono:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;

  /* shape & depth */
  --radius:14px;
  --radius-sm:10px;
  --radius-pill:999px;
  --shadow:0 1px 2px rgba(16,22,28,.06),0 8px 28px rgba(16,22,28,.06);
  --shadow-sm:0 1px 2px rgba(16,22,28,.05);

  /* layout */
  --maxw:960px;
  --gutter:20px;

  /* focus ring */
  --focus:0 0 0 3px rgba(157,176,255,.55);
}

/* ---------- Reset / base ---------- */
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
html,body{margin:0;padding:0}
body{
  background:var(--paper);
  color:var(--ink);
  font-family:var(--sans);
  font-size:16px;
  line-height:1.55;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img,svg{max-width:100%}
svg{height:auto;display:block}

/* Accessible visible focus on every interactive element */
a:focus-visible,button:focus-visible,select:focus-visible,
input:focus-visible,textarea:focus-visible,[tabindex]:focus-visible{
  outline:2px solid #9db0ff;
  outline-offset:2px;
  box-shadow:var(--focus);
  border-radius:6px;
}

/* Skip link for keyboard users */
.skip-link{
  position:absolute;left:-9999px;top:0;z-index:200;
  background:var(--ink);color:#fff;padding:10px 16px;border-radius:0 0 8px 0;
  font-weight:600;font-size:14px;text-decoration:none;
}
.skip-link:focus{left:0}

/* ---------- Layout primitives ---------- */
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 var(--gutter)}
.wrap-narrow{max-width:720px;margin:0 auto;padding:0 var(--gutter)}

section{padding:42px 0;border-bottom:1px solid var(--line)}
section:last-of-type{border-bottom:0}
.section-tight{padding:28px 0}

.grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.grid-sidebar{display:grid;grid-template-columns:1fr 320px;gap:28px;align-items:start}

/* ---------- Typography ---------- */
h1,h2,h3{font-family:var(--serif);color:var(--ink);letter-spacing:-.01em}
h1{font-size:40px;line-height:1.08;margin:10px 0 10px}
h2{font-size:26px;line-height:1.2;margin:0 0 12px}
h3{font-family:var(--sans);font-size:15px;font-weight:700;letter-spacing:.01em;margin:20px 0 6px}

.eyebrow{
  font-size:12px;letter-spacing:.14em;text-transform:uppercase;
  color:var(--accent);font-weight:700;
}
.eyebrow-muted{color:var(--muted)}

.lede{font-size:18px;color:var(--ink-soft);max-width:680px;margin:0}
p.body,.body{color:var(--ink-soft);font-size:16px;margin:0 0 14px}
p.body:last-child{margin-bottom:0}
.small{font-size:13.5px;color:var(--muted)}
.measure{max-width:68ch}

a{color:var(--accent);text-decoration:underline;text-underline-offset:2px;
  text-decoration-thickness:1px;text-decoration-color:rgba(179,38,30,.35)}
a:hover{color:var(--accent-dark);text-decoration-color:currentColor}

code{
  background:#f1f3f6;border:1px solid var(--line);border-radius:6px;
  padding:2px 6px;font-size:.92em;font-family:var(--mono)
}
.formula{
  background:#0f141a;color:#e7edf3;border-radius:var(--radius-sm);
  padding:14px 16px;font-size:14px;overflow-x:auto;font-family:var(--mono);line-height:1.7
}

ul.tight,ol.tight{margin:8px 0;padding-left:20px}
ul.tight li,ol.tight li{margin:6px 0;color:var(--ink-soft);font-size:15px}
ul.src{list-style:none;padding-left:0;margin:8px 0}
ul.src li{margin:9px 0;font-size:14px;color:var(--ink-soft);padding-left:18px;position:relative}
ul.src li::before{content:"§";position:absolute;left:0;color:var(--muted)}

/* Inline citation marker: <a class="cite" href="...">1</a> */
.cite{
  font-size:.72em;font-weight:700;vertical-align:super;line-height:0;
  text-decoration:none;color:var(--accent);padding:0 1px;
}
.cite:hover{text-decoration:underline}

/* Source label that should sit under any figure / number */
.source-note{font-size:12.5px;color:var(--muted);margin-top:6px}
.source-note a{color:var(--muted);text-decoration-color:rgba(122,134,148,.4)}
.source-note a:hover{color:var(--ink-soft)}

/* ---------- Sticky top nav ---------- */
.site-header{
  position:sticky;top:0;z-index:100;
  background:rgba(247,248,250,.86);
  -webkit-backdrop-filter:saturate(180%) blur(10px);
  backdrop-filter:saturate(180%) blur(10px);
  border-bottom:1px solid var(--line);
}
.nav{
  max-width:var(--maxw);margin:0 auto;padding:0 var(--gutter);
  display:flex;align-items:center;gap:18px;min-height:62px;
}
.brand{
  font-family:var(--serif);font-size:20px;font-weight:700;color:var(--ink);
  text-decoration:none;letter-spacing:-.01em;white-space:nowrap;display:flex;
  align-items:center;gap:9px;flex:0 0 auto;
}
.brand:hover{color:var(--ink)}
.brand .mark{
  width:11px;height:11px;border-radius:3px;background:var(--accent);
  display:inline-block;flex:0 0 auto;
}
.nav-links{
  display:flex;align-items:center;gap:4px;flex-wrap:wrap;margin-left:auto;
  list-style:none;padding:0;
}
.nav-links a{
  display:inline-block;padding:8px 11px;border-radius:8px;
  font-size:14px;font-weight:500;color:var(--ink-soft);text-decoration:none;
  white-space:nowrap;transition:background .15s,color .15s;
}
.nav-links a:hover{background:#eef1f5;color:var(--ink)}
.nav-links a.active{color:var(--accent);font-weight:700}
.nav-links a.active::after{
  content:"";display:block;height:2px;border-radius:2px;
  background:var(--accent);margin-top:3px;
}
.nav-links a.nav-cta{
  background:var(--accent);color:#fff;font-weight:600;padding:8px 14px;
}
.nav-links a.nav-cta:hover{background:var(--accent-dark);color:#fff}

/* Mobile nav toggle (CSS-only, no JS required) */
.nav-toggle{
  display:none;margin-left:auto;background:none;border:1px solid var(--line);
  border-radius:8px;width:40px;height:38px;cursor:pointer;color:var(--ink);
  font-size:18px;align-items:center;justify-content:center;
}
.nav-toggle:hover{background:#eef1f5}

/* ---------- Hero ---------- */
.hero{padding:54px 0 40px;border-bottom:1px solid var(--line)}
.hero h1{margin-top:8px}
.hero .lede{margin-top:14px;font-size:19px}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:24px}
.hero-stats{
  display:flex;flex-wrap:wrap;gap:14px;margin-top:30px;
}
.page-head{padding:40px 0 14px;border-bottom:1px solid var(--line)}

/* ---------- Cards ---------- */
.card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  padding:20px 20px 22px;box-shadow:var(--shadow);
}
.card-flat{box-shadow:none}
.card-pad-lg{padding:28px}
.card h2,.card h3{margin-top:0}

a.card-link{
  text-decoration:none;color:inherit;display:block;transition:transform .15s,box-shadow .15s,border-color .15s;
}
a.card-link:hover{transform:translateY(-2px);box-shadow:0 4px 12px rgba(16,22,28,.08),0 16px 40px rgba(16,22,28,.08);border-color:#cdd5df}
a.card-link h3{color:var(--ink)}
.card-kicker{font-size:12px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--accent)}

/* The featured result card from the calculator (gradient + warm border) */
.result{background:linear-gradient(180deg,#fff,#fffdfd);border:1px solid #f0d5d2}

/* ---------- Stats / statlines ---------- */
.statline{display:flex;flex-wrap:wrap;gap:18px;margin-top:16px}
.stat{flex:1;min-width:150px}
.stat .k{font-size:12px;text-transform:uppercase;letter-spacing:.08em;color:var(--muted);font-weight:700}
.stat .v{font-size:26px;font-weight:700;margin-top:2px;line-height:1.1}
.stat .v small{font-size:13px;color:var(--muted);font-weight:500}
.stat.accent .v{color:var(--accent)}
.stat.good .v{color:var(--good)}

/* Big headline figure (calculator + hero use) */
.headline{font-family:var(--serif);font-size:21px;line-height:1.35;margin:0 0 4px}
.bignum{font-size:48px;font-weight:800;color:var(--accent);line-height:1;letter-spacing:-.02em}
.ci{font-size:14px;color:var(--ink-soft);margin-top:6px}

/* Compact stat card for hero / dashboards */
.stat-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-sm);
  padding:16px 18px;box-shadow:var(--shadow-sm);flex:1;min-width:160px;
}
.stat-card .num{font-family:var(--serif);font-size:34px;font-weight:700;line-height:1;color:var(--ink)}
.stat-card.accent .num{color:var(--accent)}
.stat-card .label{font-size:13px;color:var(--ink-soft);margin-top:6px}
.stat-card .src{font-size:11.5px;color:var(--muted);margin-top:8px}
.stat-card .src a{color:var(--muted)}

/* ---------- Pills / badges ---------- */
.pill{
  display:inline-block;background:var(--accent-soft);color:var(--accent);
  border-radius:var(--radius-pill);padding:3px 11px;font-size:12px;font-weight:700;
  vertical-align:middle;
}
.pill-muted{background:#eef1f5;color:var(--ink-soft)}
.pill-good{background:var(--good-soft);color:var(--good)}
.pill-amber{background:var(--amber-soft);color:var(--amber-ink);border:1px solid var(--amber-line)}
.tag-est{
  display:inline-block;background:#eef1f5;color:var(--ink-soft);border:1px solid var(--line);
  border-radius:var(--radius-pill);padding:2px 9px;font-size:11px;font-weight:700;
  letter-spacing:.04em;text-transform:uppercase;
}

/* ---------- Tables: references + sortable data tables ---------- */
table.refs,table.data-table{
  width:100%;border-collapse:collapse;font-size:14px;margin-top:10px;
}
table.refs th,table.refs td{
  text-align:left;padding:9px 8px;border-bottom:1px solid var(--line);vertical-align:top;
}
table.refs th{
  color:var(--muted);font-size:11px;text-transform:uppercase;letter-spacing:.06em;font-weight:700;
}

/* sortable data table */
.table-scroll{overflow-x:auto;-webkit-overflow-scrolling:touch}
table.data-table{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden}
table.data-table th,table.data-table td{
  text-align:left;padding:12px 14px;border-bottom:1px solid var(--line);white-space:nowrap;
}
table.data-table thead th{
  background:#f1f3f6;color:var(--ink-soft);font-size:12px;font-weight:700;
  letter-spacing:.04em;text-transform:uppercase;position:sticky;top:0;
}
table.data-table th[aria-sort],table.data-table th.sortable{cursor:pointer;user-select:none}
table.data-table th.sortable::after{content:" ↕";color:var(--muted);font-size:11px}
table.data-table th[aria-sort="ascending"]::after{content:" ↑";color:var(--accent)}
table.data-table th[aria-sort="descending"]::after{content:" ↓";color:var(--accent)}
table.data-table tbody tr:hover{background:#fafbfc}
table.data-table tbody tr:last-child td{border-bottom:0}
table.data-table td.num{text-align:right;font-variant-numeric:tabular-nums}
table.data-table .name{font-weight:600;color:var(--ink);white-space:normal}
table.data-table caption{caption-side:bottom;text-align:left;font-size:12.5px;color:var(--muted);margin-top:8px;padding:8px 2px}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-family:var(--sans);font-size:15px;font-weight:600;line-height:1;
  padding:12px 18px;border-radius:var(--radius-sm);border:1px solid transparent;
  cursor:pointer;text-decoration:none;transition:background .15s,border-color .15s,color .15s,transform .05s;
  white-space:nowrap;
}
.btn:active{transform:translateY(1px)}
.btn-primary{background:var(--accent);color:#fff;border-color:var(--accent)}
.btn-primary:hover{background:var(--accent-dark);border-color:var(--accent-dark);color:#fff}
.btn-ghost{background:#fff;color:var(--ink);border-color:var(--line)}
.btn-ghost:hover{background:#f1f3f6;border-color:#cdd5df;color:var(--ink)}
.btn-quiet{background:transparent;color:var(--accent);border-color:transparent;padding-left:6px;padding-right:6px}
.btn-quiet:hover{color:var(--accent-dark);text-decoration:underline}
.btn-sm{font-size:13.5px;padding:9px 14px}
.btn-block{display:flex;width:100%}
.btn[disabled],.btn[aria-disabled="true"]{opacity:.5;cursor:not-allowed}

/* ---------- Callouts: amber disclaimer + variants ---------- */
.callout,.disclaimer{
  margin:18px 0;background:var(--amber-soft);border:1px solid var(--amber-line);
  border-radius:var(--radius-sm);padding:14px 16px;font-size:14px;color:var(--amber-ink);
}
.callout b,.disclaimer b{color:#3f2d00}
.callout p,.disclaimer p{margin:0 0 8px;color:var(--amber-ink)}
.callout p:last-child,.disclaimer p:last-child{margin:0}
.callout-accent{background:var(--accent-soft);border-color:#f0d5d2;color:#6b1410}
.callout-accent b{color:var(--accent-dark)}
.callout-good{background:var(--good-soft);border-color:#bfe0d2;color:#0b5b3e}
.callout-info{background:#eef3fb;border-color:#cfdcf2;color:#2a3f63}
.callout-title{font-weight:700;display:block;margin-bottom:4px}

/* The non-significant / null result note used by the calculator */
.null-note{
  background:var(--amber-soft);border:1px solid var(--amber-line);color:var(--amber-ink);
  border-radius:8px;padding:9px 11px;font-size:13px;margin-top:12px;
}

/* ---------- Forms ---------- */
label.field,.field-label{
  display:block;font-size:13px;font-weight:600;color:var(--ink-soft);margin:0 0 6px;
}
.required{color:var(--accent);font-weight:700}
select,input[type=text],input[type=email],input[type=number],input[type=search],textarea{
  width:100%;font-size:15px;padding:11px 12px;border:1px solid var(--line);
  border-radius:var(--radius-sm);background:#fff;color:var(--ink);font-family:inherit;
}
textarea{min-height:120px;resize:vertical;line-height:1.5}
select:focus,input:focus,textarea:focus{
  outline:none;border-color:#9db0ff;box-shadow:var(--focus);
}
::placeholder{color:#aab2bd}
.row{display:flex;gap:12px}
.row>div{flex:1}
input[type=range]{width:100%;accent-color:var(--accent);margin-top:6px}
.rangewrap{display:flex;align-items:center;gap:12px}
.rangewrap input[type=number]{max-width:90px}
.hint{font-size:12px;color:var(--muted);margin:6px 0 0}
.field-group{margin-bottom:16px}
.checkbox-row{display:flex;align-items:flex-start;gap:10px;font-size:14px;color:var(--ink-soft);margin:10px 0}
.checkbox-row input{width:auto;margin-top:3px;accent-color:var(--accent)}

/* Disclosure / advanced toggle (calculator) */
.adv-toggle{font-size:13px;color:var(--accent);cursor:pointer;font-weight:600;user-select:none;display:inline-block;margin-top:8px}
.adv{display:none;margin-top:14px;padding-top:14px;border-top:1px dashed var(--line)}
.adv.open{display:block}

/* ---------- Chart helpers (inline SVG) ---------- */
.chart-wrap{margin-top:18px}
.axis{stroke:var(--line);stroke-width:1}
.gridln{stroke:#eef1f4;stroke-width:1}
.curve{fill:none;stroke:var(--accent);stroke-width:2.5}
.band{fill:var(--accent-soft);opacity:.7}
.marker{fill:var(--accent)}
.axlabel{font-size:11px;fill:var(--muted)}
.bar{fill:var(--accent)}
.bar-muted{fill:#c7ced7}

/* ---------- Footer ---------- */
.site-footer{padding:40px 0 64px;color:var(--muted);font-size:13.5px;border-top:1px solid var(--line);margin-top:8px}
.site-footer a{color:var(--ink-soft)}
.site-footer a:hover{color:var(--ink)}
.footer-grid{display:flex;flex-wrap:wrap;gap:14px 28px;align-items:baseline;justify-content:space-between}
.footer-brand{font-family:var(--serif);font-weight:700;color:var(--ink-soft);font-size:15px}
.footer-disclaimer{max-width:560px;line-height:1.55}
.footer-links{display:flex;flex-wrap:wrap;gap:8px 16px;list-style:none;padding:0;margin:10px 0 0}
.footer-meta{margin-top:14px;font-size:12.5px;color:var(--muted)}

/* ---------- Utilities ---------- */
.mt-0{margin-top:0}.mt-1{margin-top:8px}.mt-2{margin-top:16px}.mt-3{margin-top:24px}.mt-4{margin-top:32px}
.mb-0{margin-bottom:0}.mb-2{margin-bottom:16px}.mb-3{margin-bottom:24px}
.text-muted{color:var(--muted)}
.text-accent{color:var(--accent)}
.text-center{text-align:center}
.flex{display:flex}.gap-2{gap:16px}.wrap-flex{flex-wrap:wrap}.items-center{align-items:center}
.divider{height:1px;background:var(--line);border:0;margin:28px 0}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);border:0}

/* ---------- Responsive ---------- */
@media(max-width:760px){
  body{font-size:15.5px}
  h1{font-size:30px}
  h2{font-size:22px}
  .lede,.hero .lede{font-size:17px}
  .grid,.grid-3,.grid-sidebar{grid-template-columns:1fr}
  section{padding:30px 0}
  .hero{padding:36px 0 28px}

  /* collapse nav: hide link list behind toggle */
  .nav{flex-wrap:wrap;min-height:56px}
  .nav-toggle{display:inline-flex}
  .nav-links{
    flex-basis:100%;flex-direction:column;align-items:stretch;gap:2px;
    margin-left:0;padding:6px 0 12px;display:none;
  }
  .nav-links a{padding:11px 12px;border-radius:8px}
  .nav-links a.active::after{display:none}
  .nav-links a.active{background:var(--accent-soft)}
  .nav-links a.nav-cta{text-align:center;margin-top:4px}
  /* toggled open via checkbox hack or [data-open] / .open */
  .site-header.open .nav-links,
  .nav-toggle[aria-expanded="true"] + .nav-links,
  #nav-toggle:checked ~ .nav-links{display:flex}
  .bignum{font-size:40px}
}

/* ---------- Print ---------- */
@media print{
  .site-header,.site-footer,.hero-actions,.nav-toggle{display:none}
  body{background:#fff}
  .card{box-shadow:none;border-color:#ccc}
  a{color:#000;text-decoration:underline}
}

/* ---------- Reduced motion ---------- */
@media(prefers-reduced-motion:reduce){
  *,*::before,*::after{
    animation-duration:.001ms!important;animation-iteration-count:1!important;
    transition-duration:.001ms!important;scroll-behavior:auto!important;
  }
  a.card-link:hover{transform:none}
}