/* radovin.online — self-hosted stylesheet.
   No web fonts, no imports, no external requests. System font stack only. */

:root{
  --bg:#0a1628;
  --surface:#0f1f35;
  --soft:#132a45;
  --line:#1e3a5f;
  --ink:#e8f0f8;
  --muted:#8ba3b8;
  --brand:#00d4ff;
  --brand-deep:#0097b8;
  --on-brand:#042231;
  --ok:#00c98a;
  --warn:#ffb020;
  --danger:#ff6b86;
  --maxw:1180px;
  --readw:760px;
  --radius:12px;
  --f-body:system-ui,-apple-system,"Segoe UI",Roboto,"Helvetica Neue",Arial,"Noto Sans",sans-serif;
  --f-mono:ui-monospace,SFMono-Regular,Menlo,Consolas,"Liberation Mono",monospace;
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}

body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:var(--f-body);
  font-size:17px;
  line-height:1.7;
  display:flex;
  flex-direction:column;
  min-height:100vh;
}

img,svg,video{max-width:100%;height:auto;display:block}
a{color:var(--brand);text-decoration:underline;text-underline-offset:2px}
a:hover{color:#7fe8ff}
a:focus-visible,button:focus-visible,summary:focus-visible{
  outline:3px solid var(--brand);outline-offset:2px;border-radius:4px;
}

h1,h2,h3,h4{line-height:1.25;letter-spacing:-.01em;margin:0 0 .5em}
h1{font-size:clamp(1.9rem,1.3rem + 2.4vw,2.9rem);margin-top:0}
h2{font-size:clamp(1.4rem,1.15rem + 1vw,1.85rem);margin-top:2.2em;padding-top:.2em}
h3{font-size:clamp(1.12rem,1.03rem + .45vw,1.3rem);margin-top:1.8em}
h4{font-size:1.02rem;margin-top:1.5em}
p{margin:0 0 1.1em}
ul,ol{margin:0 0 1.2em;padding-left:1.35em}
li{margin-bottom:.45em}
strong{color:#fff}
small{font-size:.86rem}
hr{border:0;border-top:1px solid var(--line);margin:2.4em 0}

/* ---------- top advertising disclosure bar ---------- */
.ad-bar{
  background:#11304a;
  border-bottom:1px solid var(--brand-deep);
  color:#d8ecf6;
  font-size:.86rem;
  line-height:1.5;
  padding:9px clamp(14px,3vw,28px);
  text-align:center;
}
.ad-bar strong{color:var(--brand)}
.ad-bar a{color:#9fe9ff}

/* ---------- header ---------- */
.site-head{
  display:flex;align-items:center;gap:16px;flex-wrap:wrap;
  padding:12px clamp(14px,3vw,28px);
  border-bottom:1px solid var(--line);
  background:var(--surface);
}
.brand{
  display:inline-flex;align-items:center;gap:10px;
  color:var(--ink);text-decoration:none;font-weight:700;font-size:1.08rem;letter-spacing:-.02em;
}
.brand:hover{color:#fff}
.brand svg{width:30px;height:30px;flex:none}
.brand-sub{
  display:block;font-size:.7rem;font-weight:500;letter-spacing:.12em;
  text-transform:uppercase;color:var(--muted);
}
.site-nav{margin-left:auto}
.site-nav ul{display:flex;gap:clamp(10px,1.6vw,22px);list-style:none;margin:0;padding:0;flex-wrap:wrap}
.site-nav li{margin:0}
.site-nav a{color:var(--muted);text-decoration:none;font-size:.92rem;white-space:nowrap}
.site-nav a:hover,.site-nav a[aria-current="page"]{color:var(--brand)}
.nav-toggle{display:none}
.nav-toggle summary{
  list-style:none;cursor:pointer;color:var(--brand);font-size:.92rem;
  border:1px solid var(--line);border-radius:8px;padding:6px 12px;background:var(--soft);
}
.nav-toggle summary::-webkit-details-marker{display:none}

@media (max-width:820px){
  .site-nav{width:100%;margin-left:0}
  .nav-toggle{display:block}
  .nav-toggle ul{flex-direction:column;gap:4px;padding:10px 0 2px}
  .nav-toggle a{display:block;padding:7px 2px;font-size:1rem}
}

/* ---------- layout ---------- */
.wrap{
  width:100%;max-width:var(--maxw);margin:0 auto;
  padding:clamp(22px,4vw,44px) clamp(14px,3vw,28px) 56px;
  display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:clamp(22px,3vw,44px);
  flex:1 0 auto;
}
.wrap.narrow{max-width:900px;grid-template-columns:minmax(0,1fr)}
@media (max-width:980px){.wrap{grid-template-columns:minmax(0,1fr)}}
main{min-width:0}
.prose{max-width:var(--readw)}
.wrap.narrow .prose{max-width:none}

/* ---------- article meta ---------- */
.eyebrow{
  display:inline-block;font-size:.74rem;letter-spacing:.14em;text-transform:uppercase;
  color:var(--brand);border:1px solid var(--brand-deep);border-radius:999px;
  padding:3px 11px;margin-bottom:14px;
}
.byline{
  display:flex;flex-wrap:wrap;gap:6px 16px;align-items:baseline;
  font-size:.88rem;color:var(--muted);
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);
  padding:12px 0;margin:0 0 26px;
}
.byline .who{color:var(--ink);font-weight:600}
.standfirst{font-size:1.1rem;color:#cfe0ee}

/* ---------- disclosure box under H1 ---------- */
.disclosure{
  border:1px solid var(--brand-deep);
  border-left:4px solid var(--brand);
  background:#0d2438;
  border-radius:var(--radius);
  padding:16px 18px;
  margin:0 0 28px;
  font-size:.93rem;
}
.disclosure h2,.disclosure p:first-child strong{margin-top:0}
.disclosure p:last-child{margin-bottom:0}
.disclosure .dt{
  display:block;font-weight:700;color:var(--brand);
  font-size:.8rem;letter-spacing:.1em;text-transform:uppercase;margin-bottom:6px;
}

/* ---------- callouts ---------- */
.note,.warn,.correction{
  border:1px solid var(--line);border-radius:var(--radius);
  background:var(--surface);padding:15px 18px;margin:0 0 1.4em;font-size:.95rem;
}
.note{border-left:4px solid var(--ok)}
.warn{border-left:4px solid var(--warn)}
.correction{border-left:4px solid var(--danger)}
.note p:last-child,.warn p:last-child,.correction p:last-child{margin-bottom:0}
.note .lbl,.warn .lbl,.correction .lbl{
  display:block;font-weight:700;font-size:.78rem;letter-spacing:.1em;
  text-transform:uppercase;margin-bottom:6px;
}
.note .lbl{color:var(--ok)}
.warn .lbl{color:var(--warn)}
.correction .lbl{color:var(--danger)}

/* ---------- call to action ---------- */
.cta-block{margin:2em 0;padding:0}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  background:linear-gradient(180deg,var(--brand) 0%,var(--brand-deep) 100%);
  color:var(--on-brand);font-weight:700;font-size:1.02rem;
  padding:14px 28px;border-radius:10px;text-decoration:none;
  border:1px solid #2ae0ff;box-shadow:0 2px 0 #036b85;
  max-width:100%;text-align:center;
}
.btn:hover{filter:brightness(1.07);color:var(--on-brand);text-decoration:none}
.btn .tag{
  font-size:.7rem;font-weight:700;letter-spacing:.08em;text-transform:uppercase;
  background:rgba(4,34,49,.22);border:1px solid rgba(4,34,49,.35);
  border-radius:999px;padding:2px 8px;white-space:nowrap;
}
.btn-sm{font-size:.92rem;padding:11px 16px;width:100%}
.partner-note{
  display:block;font-size:.83rem;color:var(--muted);
  margin:9px 0 0;max-width:62ch;line-height:1.5;
}
.partner-note b{color:#bcd4e4}

/* ---------- sidebar ---------- */
.rail{min-width:0}
@media (max-width:980px){.rail{order:2}}
.card{
  border:1px solid var(--line);border-radius:var(--radius);
  background:var(--surface);padding:18px;margin-bottom:22px;
}
.card h2,.card h3{margin-top:0;font-size:1.02rem}
.card ol,.card ul{margin-bottom:0;padding-left:1.2em}
.card li{font-size:.92rem}
.card a{color:#9fe9ff}
.toc a{text-decoration:none}
.toc a:hover{text-decoration:underline}
@media (min-width:981px){.rail .sticky{position:sticky;top:18px}}

/* ---------- figures ---------- */
figure{
  margin:2em 0;border:1px solid var(--line);border-radius:var(--radius);
  background:var(--surface);padding:14px;
}
figure img,figure svg{width:100%;height:auto;border-radius:6px}
figcaption{
  font-size:.86rem;color:var(--muted);margin-top:11px;line-height:1.55;
  border-top:1px solid var(--line);padding-top:10px;
}
figcaption b{color:#bcd4e4}

/* ---------- tables ---------- */
.table-scroll{overflow-x:auto;margin:0 0 1.6em}
table{border-collapse:collapse;width:100%;font-size:.93rem;min-width:520px}
caption{text-align:left;color:var(--muted);font-size:.86rem;padding-bottom:8px}
th,td{border:1px solid var(--line);padding:9px 12px;text-align:left;vertical-align:top}
th{background:var(--soft);color:#fff;font-weight:600}
tbody tr:nth-child(even){background:rgba(255,255,255,.02)}

/* ---------- misc ---------- */
.lead-list{list-style:none;padding:0}
.lead-list li{
  border:1px solid var(--line);border-radius:10px;background:var(--surface);
  padding:13px 16px;margin-bottom:10px;
}
.kv{list-style:none;padding:0;margin:0 0 1.4em}
.kv li{display:flex;flex-wrap:wrap;gap:4px 12px;padding:8px 0;border-bottom:1px solid var(--line)}
.kv .k{min-width:190px;color:var(--muted);font-size:.9rem}
.kv .v{font-weight:600}
code,.mono{font-family:var(--f-mono);font-size:.9em;background:var(--soft);
  padding:2px 6px;border-radius:5px;color:#c8f4ff}
pre{background:var(--soft);border:1px solid var(--line);border-radius:8px;
  padding:14px;overflow-x:auto;font-family:var(--f-mono);font-size:.86rem}
pre code{background:none;padding:0}
.updated{font-size:.86rem;color:var(--muted)}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;
  clip:rect(0 0 0 0);white-space:nowrap;border:0}
.page-links{list-style:none;padding:0;display:grid;
  grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:14px}
.page-links li{border:1px solid var(--line);border-radius:var(--radius);
  background:var(--surface);padding:16px}
.page-links h3{margin:0 0 6px;font-size:1.02rem}
.page-links p{margin:0;font-size:.9rem;color:var(--muted)}

/* ---------- footer ---------- */
.site-foot{
  border-top:1px solid var(--line);background:var(--surface);
  padding:30px clamp(14px,3vw,28px) 38px;font-size:.88rem;color:var(--muted);
  flex:none;
}
.foot-inner{max-width:var(--maxw);margin:0 auto}
.foot-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(210px,1fr));gap:22px;margin-bottom:22px}
.foot-grid h2{font-size:.78rem;letter-spacing:.12em;text-transform:uppercase;
  color:var(--brand);margin:0 0 10px}
.foot-grid ul{list-style:none;padding:0;margin:0}
.foot-grid li{margin-bottom:6px}
.foot-grid a{color:#b9d2e2;text-decoration:none}
.foot-grid a:hover{color:var(--brand);text-decoration:underline}
.foot-legal{border-top:1px solid var(--line);padding-top:18px;line-height:1.65}
.foot-legal p{margin:0 0 .7em}
.foot-legal p:last-child{margin-bottom:0}
.foot-id{color:#b9d2e2}