/* ============================================================
   praetu.com — shared design system
   Tokens are the single source of truth for color + type.
   Font hierarchy (fixed):
     serif (Newsreader 400)  → display headings h1/h2/h3, ledger numerals
     sans  (Inter 400/450/500/600) → body 400/450, UI labels 500, emphasis 600
     mono  (JetBrains Mono 400/500) → kickers, nav, badges, code, figures
   No other weights. Text never wears a data-series color.
   ============================================================ */
/* Default theme: dark (the brand). Light is an explicit toggle
   (html[data-theme="light"]) — sand-based, every color derived from the
   same roles. theme.js applies the saved choice before first paint. */
:root{
  color-scheme:dark;
  --paper:#131210;
  --paper-2:#201d18;
  --ink:#f2ede1;
  --ink-2:#c7c1b3;
  --muted:#857f72;
  --rule:#2c2922;
  --rule-strong:#e6e0d2;
  --rouge:#cd4a2e;
  --nav-bg:rgba(19,18,16,.9);
  --shimmer:rgba(242,237,225,.045);
  --code-good:#7ca86a;
  --serif:"Newsreader",Georgia,"Times New Roman",serif;
  --sans:"Inter",system-ui,-apple-system,"Segoe UI",sans-serif;
  --mono:"JetBrains Mono",ui-monospace,SFMono-Regular,Menlo,monospace;

  /* data-viz roles — validated 2026-08-12 against surface #131210 (dark):
     slots 1–3 pass ALL-PAIRS (scatter cap = 3 classes); slot 4 passes adjacent.
     scripts: dataviz validate_palette.js — do not eyeball changes. */
  --series-1:#3987e5;
  --series-2:#d95926;
  --series-3:#199e70;
  --series-4:#c98500;
  --viz-grid:#242119;
  --viz-axis:#3a362c;
}
:root[data-theme="light"]{
  color-scheme:light;
  --paper:#efe7d8;        /* sand */
  --paper-2:#e3dac6;
  --ink:#201c14;
  --ink-2:#4a4437;
  --muted:#7a7160;
  --rule:#d5cab2;
  --rule-strong:#2c2922;
  --rouge:#a83a20;        /* deepened for 5.2:1 on sand */
  --nav-bg:rgba(239,231,216,.92);
  --shimmer:rgba(32,28,20,.06);
  --code-good:#3f6b2e;

  /* light data-viz palette — validated 2026-08-12 against surface #efe7d8:
     slots 1–3 pass ALL-PAIRS; slot 4 passes adjacent. Orange/aqua carry a
     contrast WARN on sand → relief rule satisfied by the mandatory table
     view + legend on every chart. Re-run the validator before changing. */
  --series-1:#2a78d6;
  --series-2:#eb6834;
  --series-3:#1baf7a;
  --series-4:#eda100;
  --viz-grid:#e0d7c2;
  --viz-axis:#c6bba1;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
::selection{background:var(--rouge);color:#fff}
body{
  background:var(--paper);color:var(--ink-2);
  font-family:var(--sans);font-size:16px;line-height:1.65;
  font-feature-settings:"ss01";
  -webkit-font-smoothing:antialiased;
}
a{color:inherit;text-decoration:none}
.wrap{max-width:1140px;margin:0 auto;padding:0 28px}
h1,h2,h3{font-family:var(--serif);font-weight:400;color:var(--ink);line-height:1.08}
em{font-style:italic}
main:focus{outline:none}

/* ---------- skip link (a11y) ---------- */
.skip-link{
  position:absolute;left:-9999px;top:0;z-index:100;
  background:var(--rouge);color:#fff;padding:10px 18px;
  font-family:var(--mono);font-size:12px;letter-spacing:.1em;
}
.skip-link:focus{left:0}

/* ---------- nav ---------- */
nav.site{
  position:sticky;top:0;z-index:20;
  background:var(--nav-bg);backdrop-filter:blur(10px);
  border-bottom:1px solid var(--rule);
}
.nav-right{display:flex;align-items:center;gap:18px}
.theme-toggle{
  cursor:pointer;background:none;border:1px solid var(--rule);color:var(--muted);
  font-family:var(--mono);font-size:10px;letter-spacing:.14em;text-transform:uppercase;
  padding:5px 10px;transition:color .2s,border-color .2s;
}
.theme-toggle:hover{color:var(--rouge);border-color:var(--rouge)}
.nav-in{display:flex;justify-content:space-between;height:64px;align-items:center}
.logo{font-family:var(--serif);font-size:22px;color:var(--ink);letter-spacing:.01em}
.logo i{font-style:italic;color:var(--rouge)}
.nav-links{display:flex;gap:30px;font-family:var(--mono);font-size:11.5px;letter-spacing:.14em;text-transform:uppercase;color:var(--ink-2)}
.nav-links a{position:relative;padding:4px 0}
.nav-links a::after{content:"";position:absolute;left:0;bottom:0;width:0;height:1px;background:var(--rouge);transition:width .25s}
.nav-links a:hover::after,.nav-links a[aria-current="page"]::after{width:100%}
.clock{font-family:var(--mono);font-size:11.5px;letter-spacing:.1em;color:var(--muted);font-variant-numeric:tabular-nums;white-space:nowrap}
@media(max-width:860px){.nav-links{display:none}}

/* ---------- breadcrumbs ---------- */
.crumbs{padding:22px 0 0}
.crumbs ol{list-style:none;display:flex;flex-wrap:wrap;gap:8px;font-family:var(--mono);font-size:11px;letter-spacing:.12em;text-transform:uppercase;color:var(--muted)}
.crumbs li+li::before{content:"/";margin-right:8px;color:var(--rule-strong);opacity:.35}
.crumbs a{color:var(--ink-2);border-bottom:1px solid var(--rule)}
.crumbs a:hover{color:var(--rouge);border-color:var(--rouge)}
.crumbs [aria-current="page"]{color:var(--muted)}

/* ---------- headings / section chrome ---------- */
.hero-sm{padding:64px 0 52px;border-bottom:1px solid var(--rule)}
.kicker{font-family:var(--mono);font-size:11.5px;letter-spacing:.2em;text-transform:uppercase;color:var(--rouge);margin-bottom:22px}
.hero-sm h1{font-size:clamp(36px,5.4vw,64px);letter-spacing:-.015em;max-width:900px;margin-bottom:24px;text-wrap:balance}
.hero-sm h1 .acc{font-style:italic;color:var(--rouge)}
.lede{font-size:clamp(16px,1.8vw,19px);max-width:660px;color:var(--ink-2);line-height:1.7}
section{padding:80px 0;border-bottom:1px solid var(--rule)}
.sec-head{display:grid;grid-template-columns:180px 1fr;gap:24px;margin-bottom:48px;align-items:baseline}
.sec-no{font-family:var(--mono);font-size:12px;letter-spacing:.18em;color:var(--muted)}
.sec-no b{color:var(--rouge);font-weight:500}
.sec-head h2{font-size:clamp(28px,3.6vw,42px);letter-spacing:-.01em;max-width:720px;text-wrap:balance}
.sec-head h2 em{color:var(--rouge)}
.sec-intro{max-width:660px;font-size:16.5px;line-height:1.7}
@media(max-width:760px){.sec-head{grid-template-columns:1fr;gap:10px}}

/* ---------- CTA ---------- */
.cta-row{display:flex;gap:38px;flex-wrap:wrap;align-items:center;margin-top:36px}
.cta{
  display:inline-flex;align-items:center;gap:10px;
  font-family:var(--mono);font-size:12.5px;letter-spacing:.14em;text-transform:uppercase;
  color:var(--ink);padding-bottom:6px;border-bottom:1px solid var(--rule-strong);
  transition:color .2s,border-color .2s;
}
.cta .arr{transition:transform .25s}
.cta:hover{color:var(--rouge);border-color:var(--rouge)}
.cta:hover .arr{transform:translateX(4px)}
.cta.primary{color:var(--rouge);border-color:var(--rouge)}
.cta.primary:hover{color:var(--ink);border-color:var(--ink)}
.promise{display:block;margin-top:14px;font-family:var(--mono);font-size:11px;letter-spacing:.1em;text-transform:uppercase;color:var(--muted)}

/* ---------- sticky mobile CTA ---------- */
.m-cta{
  display:none;position:fixed;left:0;right:0;bottom:0;z-index:30;
  background:var(--nav-bg);backdrop-filter:blur(10px);
  border-top:1px solid var(--rule);padding:12px 20px calc(12px + env(safe-area-inset-bottom));
}
.m-cta a{
  display:flex;justify-content:center;align-items:center;gap:10px;
  font-family:var(--mono);font-size:12.5px;letter-spacing:.14em;text-transform:uppercase;
  color:#fff;background:var(--rouge);padding:13px 18px;
}
@media(max-width:860px){
  .m-cta{display:block}
  body{padding-bottom:76px}
}

/* ---------- footer ---------- */
footer.site{padding:52px 0 60px}
.foot{display:flex;justify-content:space-between;align-items:flex-start;flex-wrap:wrap;gap:24px}
.foot-left{font-family:var(--serif);font-size:18px;color:var(--ink)}
.foot-left i{font-style:italic;color:var(--rouge)}
.foot-tag{font-size:14px;color:var(--muted);font-family:var(--sans)}
.foot-links{display:flex;flex-wrap:wrap;gap:10px 22px;font-family:var(--mono);font-size:11.5px;letter-spacing:.1em;color:var(--muted);text-transform:uppercase}
.foot-links a{color:var(--ink-2);border-bottom:1px solid var(--rule);padding-bottom:2px}
.foot-links a:hover{color:var(--rouge);border-color:var(--rouge)}

/* ---------- prose pages (privacy, accessibility, faq) ---------- */
.prose{max-width:720px;padding:56px 0 96px}
.prose h1{font-size:clamp(34px,4.6vw,52px);margin-bottom:18px}
.prose h2{font-size:26px;margin:44px 0 14px}
.prose p{margin-bottom:16px;font-size:16px;line-height:1.75}
.prose ul{margin:0 0 16px 20px}
.prose li{margin-bottom:8px}
.prose a{color:var(--ink);border-bottom:1px solid var(--rule-strong)}
.prose a:hover{color:var(--rouge);border-color:var(--rouge)}
.prose .updated{font-family:var(--mono);font-size:11.5px;letter-spacing:.12em;text-transform:uppercase;color:var(--muted);margin-bottom:34px}

/* ---------- FAQ ---------- */
.faq-list{border-top:1px solid var(--rule-strong);max-width:760px}
.faq-list details{border-bottom:1px solid var(--rule)}
.faq-list summary{
  cursor:pointer;list-style:none;display:flex;justify-content:space-between;gap:20px;align-items:baseline;
  padding:22px 0;font-family:var(--serif);font-size:20px;color:var(--ink);
}
.faq-list summary::-webkit-details-marker{display:none}
.faq-list summary::after{content:"+";font-family:var(--mono);color:var(--rouge);font-size:18px;transition:transform .2s}
.faq-list details[open] summary::after{transform:rotate(45deg)}
.faq-list details p{padding:0 0 22px;max-width:640px;font-size:15.5px;line-height:1.7}
.faq-list details a{color:var(--ink);border-bottom:1px solid var(--rule-strong)}
.faq-list details a:hover{color:var(--rouge);border-color:var(--rouge)}

/* ---------- forms ---------- */
.form{max-width:560px}
.form label{display:block;font-family:var(--mono);font-size:11.5px;letter-spacing:.14em;text-transform:uppercase;color:var(--ink-2);margin:22px 0 8px}
.form label .req{color:var(--rouge)}
.form input,.form select,.form textarea{
  width:100%;background:var(--paper-2);border:1px solid var(--rule);color:var(--ink);
  font-family:var(--sans);font-size:15.5px;padding:12px 14px;border-radius:0;
}
.form input:focus,.form select:focus,.form textarea:focus{outline:2px solid var(--rouge);outline-offset:0;border-color:var(--rouge)}
.form textarea{min-height:150px;resize:vertical}
.form .hint{font-size:13px;color:var(--muted);margin-top:6px}
.form button{
  margin-top:30px;cursor:pointer;background:var(--rouge);color:#fff;border:none;
  font-family:var(--mono);font-size:12.5px;letter-spacing:.14em;text-transform:uppercase;
  padding:15px 28px;transition:background .2s;
}
.form button:hover{background:#e05a3c}
.form .err{display:none;color:#e66767;font-size:13.5px;margin-top:6px}
.form .invalid input,.form .invalid textarea,.form .invalid select{border-color:#e66767}
.form .invalid .err{display:block}
/* honeypot — visually gone, still in the DOM for bots */
.hp-field{position:absolute!important;left:-9999px!important;width:1px;height:1px;overflow:hidden}

/* ---------- tooltips (term definitions) ---------- */
.tip{
  position:relative;border-bottom:1px dotted var(--muted);cursor:help;
}
.tip:hover .tip-body,.tip:focus-visible .tip-body{opacity:1;visibility:visible;transform:translate(-50%,0)}
.tip .tip-body{
  position:absolute;left:50%;bottom:calc(100% + 10px);transform:translate(-50%,4px);
  opacity:0;visibility:hidden;transition:opacity .18s,transform .18s,visibility .18s;
  width:min(300px,80vw);background:var(--paper-2);border:1px solid var(--rule);
  padding:12px 14px;font-size:13px;line-height:1.55;color:var(--ink-2);
  font-family:var(--sans);font-style:normal;text-transform:none;letter-spacing:0;
  box-shadow:0 8px 30px rgba(0,0,0,.45);z-index:15;pointer-events:none;
}
@media(hover:none){.tip .tip-body{display:none}} /* touch: definitions repeat inline/FAQ */

/* ---------- data-viz chrome ---------- */
.viz-card{border:1px solid var(--rule);background:var(--paper);padding:26px 26px 22px;margin-top:26px}
.viz-head{display:flex;justify-content:space-between;align-items:baseline;gap:16px;flex-wrap:wrap;margin-bottom:6px}
.viz-title{font-family:var(--serif);font-size:21px;color:var(--ink)}
.viz-sub{font-size:13.5px;color:var(--muted);max-width:560px;margin-bottom:14px}
.viz-actions{display:flex;gap:16px;font-family:var(--mono);font-size:10.5px;letter-spacing:.12em;text-transform:uppercase}
.viz-actions button{background:none;border:none;color:var(--muted);cursor:pointer;font:inherit;letter-spacing:inherit;text-transform:inherit;padding:2px 0;border-bottom:1px solid transparent}
.viz-actions button:hover,.viz-actions button[aria-pressed="true"]{color:var(--rouge);border-color:var(--rouge)}
.viz-plot{position:relative;width:100%}
.viz-plot svg{display:block;width:100%;height:auto}
.viz-plot text{font-family:var(--mono);font-size:10.5px;fill:var(--muted)}
.viz-legend{display:flex;gap:22px;flex-wrap:wrap;margin-top:14px;font-family:var(--mono);font-size:10.5px;letter-spacing:.1em;text-transform:uppercase;color:var(--ink-2)}
.viz-legend .sw{display:inline-block;width:10px;height:10px;margin-right:8px;vertical-align:-1px}
.viz-legend .ln{display:inline-block;width:14px;height:2px;margin-right:8px;vertical-align:3px}

/* chart tooltip (data readout) */
.viz-tip{
  position:absolute;pointer-events:none;z-index:12;opacity:0;transition:opacity .12s;
  background:var(--paper-2);border:1px solid var(--rule);padding:10px 12px;
  font-family:var(--sans);font-size:13px;line-height:1.5;color:var(--ink-2);
  box-shadow:0 8px 30px rgba(0,0,0,.5);max-width:260px;
}
.viz-tip .v{color:var(--ink);font-weight:600}
.viz-tip .k{display:inline-block;width:12px;height:2px;margin-right:7px;vertical-align:3px}

/* skeleton loaders — initial load only; refetch holds previous render dim */
.skel{position:relative;overflow:hidden;background:var(--paper-2);min-height:220px}
.skel::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(100deg,transparent 30%,var(--shimmer) 50%,transparent 70%);
  animation:shimmer 1.6s infinite;
}
@keyframes shimmer{from{transform:translateX(-100%)}to{transform:translateX(100%)}}
@media (prefers-reduced-motion:reduce){.skel::after{animation:none}}
.viz-refetch{opacity:.45;transition:opacity .2s} /* hold-previous-render on refetch */

/* table view (the WCAG-clean twin of every chart) */
.viz-table{width:100%;border-collapse:collapse;margin-top:6px;font-size:13.5px}
.viz-table caption{text-align:left;font-family:var(--mono);font-size:10.5px;letter-spacing:.12em;text-transform:uppercase;color:var(--muted);padding-bottom:10px}
.viz-table th{font-family:var(--mono);font-size:10.5px;letter-spacing:.1em;text-transform:uppercase;color:var(--muted);font-weight:500;text-align:left;padding:8px 14px 8px 0;border-bottom:1px solid var(--rule-strong)}
.viz-table td{padding:8px 14px 8px 0;border-bottom:1px solid var(--rule);color:var(--ink-2);font-variant-numeric:tabular-nums}
.viz-table td:first-child{color:var(--ink)}
.viz-table .num{text-align:right}
.viz-table th.num{text-align:right}
[hidden]{display:none!important}

/* stat tiles */
.tiles{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));border-top:1px solid var(--rule-strong);margin-top:8px}
.tile{padding:26px 24px 28px 0;border-bottom:1px solid var(--rule)}
@media(min-width:900px){.tile:not(:first-child){padding-left:24px;border-left:1px solid var(--rule)}}
.tile .t-label{font-family:var(--mono);font-size:10.5px;letter-spacing:.14em;text-transform:uppercase;color:var(--muted);margin-bottom:10px}
.tile .t-value{font-size:40px;line-height:1;color:var(--ink);font-weight:600;font-family:var(--sans)}
.tile .t-note{font-size:12.5px;color:var(--muted);margin-top:8px;line-height:1.5}

/* badges */
.badge{display:inline-block;font-family:var(--mono);font-size:10px;letter-spacing:.14em;text-transform:uppercase;padding:4px 9px;border:1px solid var(--rule-strong);color:var(--ink)}
.badge.sample{border-color:var(--series-4);color:var(--series-4)}
.badge.armed{border-color:var(--series-3);color:var(--series-3)}
.badge.pending{border-color:var(--muted);color:var(--muted)}

/* notice banner */
.notice{
  border:1px solid var(--rule);border-left:2px solid var(--series-4);
  background:var(--paper-2);padding:16px 20px;margin-top:30px;
  font-size:14px;line-height:1.6;max-width:760px;
}
.notice b{color:var(--ink);font-weight:500}

/* reveal — scoped to html.js (set by theme.js) so content is fully visible
   when JavaScript is unavailable; the animation is an enhancement only */
html.js .rv{opacity:0;transform:translateY(14px);transition:opacity .7s ease,transform .7s ease}
html.js .rv.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  html.js .rv{opacity:1;transform:none;transition:none}
  html{scroll-behavior:auto}
}