/* pravadin.online — self-hosted stylesheet.
   No @import, no remote fonts, no external requests of any kind.
   System font stack only. */

:root{
  --bg:#0b0b12;
  --surface:#14141f;
  --soft:#1a1a2e;
  --line:#2a2a3e;
  --ink:#e2e8f0;
  --muted:#94a3b8;
  --brand:#7c3aed;
  --brand-2:#a78bfa;
  --brand-ink:#ffffff;
  --ok:#00b779;
  --amber:#f59e0b;
  --radius:14px;
  --maxw:1240px;
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue",
          Arial, "Noto Sans", "Liberation Sans", sans-serif;
  --mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas,
          "DejaVu Sans Mono", monospace;
}

*,*::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-2);text-decoration:underline;text-underline-offset:2px}
a:hover{color:#c4b5fd}
:focus-visible{outline:3px solid var(--brand-2);outline-offset:2px}

/* ---------- top disclosure bar (must precede all commercial links) ---------- */
.topbar{
  background:#2e1065;
  color:#ede9fe;
  border-bottom:1px solid #4c1d95;
  font-size:.86rem;
  line-height:1.5;
  padding:9px clamp(14px,3vw,32px);
  text-align:center;
}
.topbar strong{color:#fff}
.topbar a{color:#ddd6fe}

/* ---------- header ---------- */
.nav{
  border-bottom:1px solid var(--line);
  background:var(--surface);
}
.nav-in{
  max-width:var(--maxw);margin:0 auto;
  padding:14px clamp(14px,3vw,32px);
  display:flex;flex-wrap:wrap;gap:10px 22px;align-items:center;
}
.brand{
  font-weight:700;font-size:1.12rem;letter-spacing:.2px;
  color:var(--ink);text-decoration:none;
}
.brand span{color:var(--brand-2)}
.nav-links{display:flex;flex-wrap:wrap;gap:8px 18px;margin-left:auto;font-size:.92rem}
.nav-links a{color:var(--muted);text-decoration:none}
.nav-links a:hover{color:var(--ink);text-decoration:underline}

/* ---------- layout ---------- */
.wrap{
  max-width:var(--maxw);width:100%;margin:0 auto;
  padding:26px clamp(14px,3vw,32px) 48px;
  display:grid;gap:30px;
  grid-template-columns:minmax(0,1fr) 320px;
  flex:1 0 auto;
}
.wrap.narrow{grid-template-columns:minmax(0,1fr);max-width:860px}
main{min-width:0}
.rail{min-width:0}

@media (max-width:980px){
  .wrap{grid-template-columns:minmax(0,1fr)}
}

/* ---------- typography ---------- */
h1{
  font-size:clamp(1.85rem,1.3rem + 2.2vw,2.75rem);
  line-height:1.18;margin:.2em 0 .4em;letter-spacing:-.4px;
}
h2{
  font-size:clamp(1.3rem,1.1rem + .9vw,1.7rem);
  line-height:1.28;margin:2.1em 0 .55em;letter-spacing:-.2px;
  padding-top:.3em;border-top:1px solid var(--line);
}
h3{font-size:1.1rem;margin:1.6em 0 .45em;line-height:1.35}
h4{font-size:1rem;margin:1.3em 0 .35em;color:var(--brand-2)}
p{margin:0 0 1.05em}
ul,ol{margin:0 0 1.15em;padding-left:1.3em}
li{margin:.4em 0}
strong{color:#f1f5f9}
small{font-size:.86rem}
hr{border:0;border-top:1px solid var(--line);margin:2.4em 0}
code{font-family:var(--mono);font-size:.9em;background:var(--soft);
     border:1px solid var(--line);border-radius:5px;padding:1px 5px}

.lede{font-size:1.12rem;color:#cbd5e1;margin-bottom:1.3em}

/* ---------- byline ---------- */
.byline{
  display:flex;flex-wrap:wrap;gap:6px 16px;align-items:baseline;
  font-size:.88rem;color:var(--muted);
  border-left:3px solid var(--brand);padding:2px 0 2px 14px;margin:0 0 22px;
}
.byline strong{color:var(--ink);font-weight:600}

/* ---------- disclosure box (immediately after h1) ---------- */
.disclosure-box{
  background:var(--soft);
  border:1px solid #4c1d95;
  border-left:4px solid var(--brand);
  border-radius:var(--radius);
  padding:16px 18px;margin:0 0 26px;
  font-size:.94rem;
}
.disclosure-box h2{
  font-size:1rem;margin:0 0 .45em;border:0;padding:0;
  color:var(--brand-2);text-transform:uppercase;letter-spacing:.7px;
}
.disclosure-box p:last-child{margin-bottom:0}

/* ---------- notes / callouts ---------- */
.note{
  background:var(--surface);border:1px solid var(--line);
  border-radius:var(--radius);padding:15px 18px;margin:0 0 1.4em;font-size:.95rem;
}
.note h3{margin-top:0}
.note p:last-child{margin-bottom:0}
.note.warn{border-left:4px solid var(--amber)}
.note.tm{border-left:4px solid var(--muted);color:var(--muted);font-size:.9rem}

/* ---------- CTA button + its mandatory labels ---------- */
.cta-block{margin:26px 0 30px}
.btn{
  display:block;width:100%;text-align:center;text-decoration:none;
  background:linear-gradient(180deg,#8b5cf6 0%,#7c3aed 100%);
  color:var(--brand-ink);font-weight:700;font-size:1.05rem;
  border:1px solid #6d28d9;border-radius:12px;
  padding:15px 20px 12px;
  box-shadow:0 1px 0 rgba(255,255,255,.12) inset;
}
.btn:hover{background:linear-gradient(180deg,#7c3aed 0%,#6d28d9 100%);color:#fff}
.btn .btn-tag{
  display:block;font-size:.72rem;font-weight:600;letter-spacing:.9px;
  text-transform:uppercase;color:#ddd6fe;margin-top:5px;
}
.cta-note{
  font-size:.83rem;color:var(--muted);margin:8px 2px 0;line-height:1.5;
}

/* ---------- sidebar cards ---------- */
.card{
  background:var(--surface);border:1px solid var(--line);
  border-radius:var(--radius);padding:18px;margin:0 0 22px;
}
.card h2,.card h3{margin-top:0;border:0;padding-top:0;font-size:1.02rem}
.card p:last-child{margin-bottom:0}
.card .cta-block{margin:14px 0 0}

.toc ol{padding-left:1.15em;font-size:.93rem;margin-bottom:0}
.toc li{margin:.32em 0}
.toc a{color:var(--muted);text-decoration:none}
.toc a:hover{color:var(--brand-2);text-decoration:underline}

.facts{list-style:none;padding:0;margin:0;font-size:.93rem}
.facts li{
  display:flex;justify-content:space-between;gap:12px;
  padding:7px 0;border-bottom:1px solid var(--line);margin:0;
}
.facts li:last-child{border-bottom:0}
.facts span:first-child{color:var(--muted)}
.facts span:last-child{text-align:right;color:var(--ink);font-weight:600}

/* ---------- figures ---------- */
figure{
  margin:26px 0;background:var(--surface);
  border:1px solid var(--line);border-radius:var(--radius);
  padding:18px 18px 4px;
}
figure img{width:100%;height:auto;border-radius:8px}
figcaption{
  font-size:.86rem;color:var(--muted);
  padding:12px 2px 14px;line-height:1.55;border-top:1px solid var(--line);margin-top:14px;
}

/* ---------- tables ---------- */
.table-scroll{overflow-x:auto;margin:0 0 1.5em}
table{border-collapse:collapse;width:100%;font-size:.93rem;min-width:520px}
th,td{border:1px solid var(--line);padding:9px 12px;text-align:left;vertical-align:top}
th{background:var(--soft);color:#f1f5f9;font-weight:600}

/* ---------- definition-ish list ---------- */
dl{margin:0 0 1.3em}
dt{font-weight:700;color:#f1f5f9;margin-top:1em}
dd{margin:.25em 0 0 0;color:var(--ink)}

/* ---------- footer ---------- */
.foot{
  border-top:1px solid var(--line);background:var(--surface);
  margin-top:auto;
  padding:30px clamp(14px,3vw,32px) 38px;
  font-size:.88rem;color:var(--muted);
}
.foot-in{max-width:var(--maxw);margin:0 auto}
.foot h2{
  font-size:.78rem;text-transform:uppercase;letter-spacing:1px;
  color:var(--brand-2);margin:0 0 .7em;border:0;padding:0;
}
.foot-grid{
  display:grid;gap:26px;
  grid-template-columns:repeat(auto-fit,minmax(215px,1fr));
  margin-bottom:26px;
}
.foot ul{list-style:none;padding:0;margin:0}
.foot li{margin:.32em 0}
.foot a{color:var(--muted);text-decoration:none}
.foot a:hover{color:var(--brand-2);text-decoration:underline}
.foot-legal{
  border-top:1px solid var(--line);padding-top:20px;
  font-size:.82rem;line-height:1.6;
}
.foot-legal p{margin:0 0 .7em}
.foot address{font-style:normal;display:inline}

/* ---------- 404 ---------- */
.mid{text-align:center;padding:40px 0}

/* screen-reader only */
.visually-hidden{
  position:absolute!important;width:1px;height:1px;overflow:hidden;
  clip:rect(0 0 0 0);clip-path:inset(50%);white-space:nowrap;
}