/* radovian.online — self-hosted stylesheet.
   No web fonts, no remote resources, no third-party requests. */

:root{
  --ink:#13203a;
  --ink-soft:#4d5b76;
  --ink-faint:#6b7891;
  --brand:#1b4fd8;
  --brand-dark:#143aa3;
  --accent:#0e9f7e;
  --accent-dark:#0a7a60;
  --amber:#a86400;
  --amber-bg:#fff7e8;
  --bg:#ffffff;
  --soft:#f5f7fc;
  --soft-2:#eef2fb;
  --line:#dde3f0;
  --line-strong:#c3ccdf;
  --radius:10px;
  --radius-s:6px;
  --wrap:1180px;
  --font:system-ui,-apple-system,"Segoe UI",Roboto,"Helvetica Neue",Arial,"Noto Sans",sans-serif;
  --font-head:Georgia,"Times New Roman",Times,serif;
  --shadow:0 1px 2px rgba(19,32,58,.06),0 6px 20px rgba(19,32,58,.07);
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:var(--font);
  font-size:17px;
  line-height:1.68;
  display:flex;
  flex-direction:column;
  min-height:100vh;
}
img,svg{max-width:100%;height:auto;display:block}
a{color:var(--brand);text-decoration:underline;text-underline-offset:2px}
a:hover{color:var(--brand-dark)}
:focus-visible{outline:3px solid var(--brand);outline-offset:2px}

h1,h2,h3,h4{font-family:var(--font-head);line-height:1.25;color:var(--ink);margin:0 0 .5em}
h1{font-size:clamp(1.85rem,1.3rem + 2.2vw,2.75rem);letter-spacing:-.01em}
h2{font-size:clamp(1.4rem,1.1rem + 1.1vw,1.85rem);margin-top:2.1em}
h3{font-size:clamp(1.12rem,1rem + .5vw,1.3rem);margin-top:1.8em}
h4{font-size:1.05rem;margin-top:1.4em}
p{margin:0 0 1.1em}
ul,ol{margin:0 0 1.2em;padding-left:1.35em}
li{margin-bottom:.5em}
strong{font-weight:650}
small{font-size:.86rem}
hr{border:0;border-top:1px solid var(--line);margin:2.4em 0}
code{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:.92em;background:var(--soft-2);padding:.1em .35em;border-radius:4px}

/* ---------- disclosure bar (must render above the fold, before any offer) ---------- */
.adbar{
  background:var(--amber-bg);
  border-bottom:1px solid #f0ddb8;
  color:#6b4400;
  font-size:.86rem;
  line-height:1.5;
  padding:9px 18px;
  text-align:center;
}
.adbar strong{font-weight:700}
.adbar a{color:#6b4400}

/* ---------- header ---------- */
.site-head{
  border-bottom:1px solid var(--line);
  background:var(--bg);
}
.head-in{
  max-width:var(--wrap);
  margin:0 auto;
  padding:14px 18px;
  display:flex;
  align-items:center;
  gap:18px;
  flex-wrap:wrap;
}
.brand{
  display:flex;align-items:center;gap:10px;
  text-decoration:none;color:var(--ink);font-weight:700;
  font-family:var(--font-head);font-size:1.22rem;letter-spacing:-.01em;
}
.brand:hover{color:var(--ink)}
.brand svg{width:30px;height:30px;flex:0 0 auto}
.brand-sub{display:block;font-family:var(--font);font-size:.7rem;font-weight:500;letter-spacing:.09em;text-transform:uppercase;color:var(--ink-faint);line-height:1.2}
.site-nav{margin-left:auto;display:flex;flex-wrap:wrap;gap:4px}
.site-nav a{
  color:var(--ink-soft);text-decoration:none;font-size:.92rem;font-weight:500;
  padding:6px 10px;border-radius:var(--radius-s);
}
.site-nav a:hover{background:var(--soft-2);color:var(--brand-dark)}
.site-nav a[aria-current="page"]{color:var(--brand-dark);background:var(--soft-2)}

/* ---------- layout ---------- */
.wrap{
  max-width:var(--wrap);
  margin:0 auto;
  padding:30px 18px 60px;
  display:grid;
  gap:38px;
  grid-template-columns:minmax(0,1fr) 312px;
  width:100%;
}
.wrap.narrow{grid-template-columns:minmax(0,760px);justify-content:center}
main{min-width:0}
.crumbs{font-size:.83rem;color:var(--ink-faint);margin:0 0 14px}
.crumbs a{color:var(--ink-faint)}
.lede{font-size:1.12rem;color:var(--ink-soft);margin-bottom:1.4em}
.byline{
  display:flex;flex-wrap:wrap;gap:6px 14px;align-items:baseline;
  font-size:.88rem;color:var(--ink-faint);
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);
  padding:10px 0;margin:0 0 26px;
}
.byline strong{color:var(--ink)}

/* ---------- disclosure box under the h1 ---------- */
.disclosure{
  border:1px solid #f0ddb8;
  background:var(--amber-bg);
  border-radius:var(--radius);
  padding:16px 18px;
  margin:0 0 26px;
  font-size:.93rem;
  color:#5d3c00;
}
.disclosure h2,.disclosure h3{margin:0 0 .4em;font-size:1rem;font-family:var(--font);font-weight:700;color:#5d3c00}
.disclosure p:last-child{margin-bottom:0}
.disclosure a{color:#5d3c00}

/* ---------- notes / callouts ---------- */
.note{
  border-left:4px solid var(--brand);
  background:var(--soft);
  border-radius:0 var(--radius) var(--radius) 0;
  padding:14px 18px;margin:1.6em 0;font-size:.96rem;
}
.note h3,.note h4{margin-top:0}
.note p:last-child{margin-bottom:0}
.note.warn{border-left-color:var(--amber);background:var(--amber-bg)}
.note.fact{border-left-color:var(--accent);background:#eefaf6}

/* ---------- key facts table ---------- */
.table-scroll{overflow-x:auto;margin:1.6em 0}
table{border-collapse:collapse;width:100%;font-size:.94rem}
caption{caption-side:bottom;text-align:left;font-size:.84rem;color:var(--ink-faint);padding-top:8px}
th,td{border:1px solid var(--line);padding:10px 12px;text-align:left;vertical-align:top}
th{background:var(--soft-2);font-weight:650}

/* ---------- figures ---------- */
figure{margin:2em 0;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;background:var(--bg)}
figure img{width:100%;background:var(--bg)}
figcaption{padding:11px 16px;font-size:.87rem;color:var(--ink-soft);background:var(--soft);border-top:1px solid var(--line)}

/* ---------- call to action ---------- */
.cta{margin:1.9em 0;text-align:center}
.btn{
  display:inline-flex;flex-direction:column;align-items:center;gap:3px;
  background:var(--accent);
  color:#fff;
  font-weight:650;font-size:1.02rem;
  padding:13px 30px;border-radius:var(--radius);
  text-decoration:none;border:1px solid var(--accent-dark);
  box-shadow:var(--shadow);
  max-width:100%;
}
.btn:hover{background:var(--accent-dark);color:#fff}
.btn.alt{background:var(--brand);border-color:var(--brand-dark)}
.btn.alt:hover{background:var(--brand-dark)}
.btn.small{font-size:.95rem;padding:11px 20px;width:100%}
.btn-tag{
  font-size:.7rem;font-weight:600;letter-spacing:.07em;text-transform:uppercase;
  opacity:.92;font-family:var(--font);
}
.cta-note{
  display:block;max-width:56ch;margin:9px auto 0;
  font-size:.82rem;line-height:1.5;color:var(--ink-faint);
}

/* ---------- sidebar ---------- */
.rail{min-width:0}
.card{
  border:1px solid var(--line);
  border-radius:var(--radius);
  background:var(--bg);
  padding:18px;
  margin-bottom:22px;
}
.card h2,.card h3{margin-top:0;font-size:1.08rem}
.card ul{padding-left:1.1em;font-size:.93rem}
.card p{font-size:.93rem}
.card.sticky{position:sticky;top:18px}
.toc{background:var(--soft);}
.toc ol{padding-left:1.2em;font-size:.93rem;margin-bottom:0}
.toc a{text-decoration:none;color:var(--ink-soft)}
.toc a:hover{text-decoration:underline;color:var(--brand-dark)}

/* ---------- FAQ ---------- */
details{border:1px solid var(--line);border-radius:var(--radius);margin-bottom:10px;background:var(--bg)}
details[open]{background:var(--soft)}
summary{padding:13px 16px;font-weight:650;cursor:pointer;list-style:none;position:relative;padding-right:42px}
summary::-webkit-details-marker{display:none}
summary::after{content:"+";position:absolute;right:16px;top:11px;font-size:1.3rem;color:var(--brand);line-height:1}
details[open] summary::after{content:"\2212"}
details .body{padding:0 16px 14px;font-size:.96rem}
details .body p:last-child{margin-bottom:0}

/* ---------- cards grid ---------- */
.grid{display:grid;gap:18px;grid-template-columns:repeat(auto-fit,minmax(255px,1fr));margin:1.6em 0}
.grid .card{margin-bottom:0}

/* ---------- footer ---------- */
.site-foot{
  margin-top:auto;
  background:var(--soft);
  border-top:1px solid var(--line);
  font-size:.9rem;
  color:var(--ink-soft);
}
.foot-in{max-width:var(--wrap);margin:0 auto;padding:32px 18px 40px}
.foot-cols{display:grid;gap:26px;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));margin-bottom:26px}
.foot-cols h2{font-size:.78rem;letter-spacing:.09em;text-transform:uppercase;font-family:var(--font);color:var(--ink-faint);margin:0 0 .8em}
.foot-cols ul{list-style:none;padding:0;margin:0}
.foot-cols li{margin-bottom:.45em}
.foot-cols a{color:var(--ink-soft);text-decoration:none}
.foot-cols a:hover{color:var(--brand-dark);text-decoration:underline}
.foot-id{font-size:.84rem;line-height:1.6;color:var(--ink-faint)}
.foot-id address{font-style:normal;display:inline}
.foot-legal{border-top:1px solid var(--line-strong);padding-top:18px;font-size:.82rem;color:var(--ink-faint)}
.foot-legal p{margin:0 0 .6em}

.skip{position:absolute;left:-9999px}
.skip:focus{left:8px;top:8px;background:#fff;padding:10px 14px;z-index:20;border:2px solid var(--brand);border-radius:var(--radius-s)}

@media (max-width:920px){
  .wrap{grid-template-columns:minmax(0,1fr)}
  .card.sticky{position:static}
  .rail{order:2}
}
@media (max-width:620px){
  body{font-size:16px}
  .head-in{padding:12px 16px;gap:10px}
  .site-nav{margin-left:0;width:100%}
  .wrap{padding:22px 16px 46px;gap:28px}
}
@media print{
  .site-nav,.rail,.cta,.adbar{display:none}
  body{font-size:12pt}
}