/* vestronov.online — single self-hosted stylesheet.
   No @import, no web fonts, no remote assets. System font stack only. */

:root{
  --bg:#f7f5f0;
  --surface:#ffffff;
  --surface-2:#f1ede4;
  --ink:#1b1f24;
  --ink-soft:#333b44;
  --muted:#5b6570;
  --line:#ded8cb;
  --line-strong:#c6bda9;
  --brand:#8c3b1b;
  --brand-hover:#6e2d13;
  --brand-soft:#f6e9e2;
  --accent:#4c5b3c;
  --accent-soft:#eaeee2;
  --note-bg:#fdf6e6;
  --note-line:#dfc68b;
  --radius:10px;
  --maxw:1220px;
  --f-body:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,"Noto Sans",sans-serif;
  --f-head:"Iowan Old Style","Palatino Linotype",Palatino,Georgia,"Times New Roman",serif;
  --f-mono:ui-monospace,SFMono-Regular,Menlo,Consolas,"Liberation Mono",monospace;
}

@media (prefers-color-scheme:dark){
  :root{
    --bg:#14171a;
    --surface:#1c2025;
    --surface-2:#22272c;
    --ink:#e9e6e0;
    --ink-soft:#d3cfc7;
    --muted:#a2aab3;
    --line:#333a41;
    --line-strong:#454e57;
    --brand:#e0895d;
    --brand-hover:#efa77f;
    --brand-soft:#2d211b;
    --accent:#a2b887;
    --accent-soft:#232a20;
    --note-bg:#282218;
    --note-line:#6b5a32;
  }
}

*,*::before,*::after{box-sizing:border-box}

html{-webkit-text-size-adjust:100%}

body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:var(--f-body);
  font-size:17px;
  line-height:1.65;
  min-height:100vh;
  display:flex;
  flex-direction:column;
}

img,svg,video{max-width:100%;height:auto;display:block}

a{color:var(--brand);text-decoration:underline;text-underline-offset:2px}
a:hover{color:var(--brand-hover)}

:focus-visible{outline:3px solid var(--brand);outline-offset:2px}

h1,h2,h3,h4{font-family:var(--f-head);line-height:1.2;color:var(--ink);margin:0 0 .5em}
h1{font-size:clamp(1.9rem,1.35rem + 2.2vw,2.9rem);letter-spacing:-.01em}
h2{font-size:clamp(1.4rem,1.15rem + 1.1vw,1.95rem);margin-top:2.2em;padding-bottom:.25em;border-bottom:2px solid var(--line)}
h3{font-size:clamp(1.15rem,1.05rem + .5vw,1.4rem);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:1.3em}
li{margin:.4em 0}
hr{border:0;border-top:1px solid var(--line);margin:2.4em 0}
strong{color:var(--ink)}
code{font-family:var(--f-mono);font-size:.9em;background:var(--surface-2);padding:.12em .35em;border-radius:4px}
abbr[title]{text-decoration:underline dotted;cursor:help}

/* ---------- top disclosure bar ---------- */
.topbar{
  background:var(--brand);
  color:#fff;
  font-size:.86rem;
  line-height:1.45;
  padding:9px 18px;
  text-align:center;
}
.topbar a{color:#fff;text-decoration:underline}
.topbar strong{color:#fff}
@media (prefers-color-scheme:dark){
  .topbar{background:#5e2611;color:#f6e6dd}
  .topbar a,.topbar strong{color:#f6e6dd}
}

/* ---------- header ---------- */
.site-head{
  background:var(--surface);
  border-bottom:1px solid var(--line);
}
.site-head-in{
  max-width:var(--maxw);
  margin:0 auto;
  padding:12px 18px;
  display:flex;
  flex-wrap:wrap;
  gap:10px 22px;
  align-items:center;
  justify-content:space-between;
}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;color:var(--ink)}
.brand:hover{color:var(--ink);text-decoration:none}
.brand img{width:34px;height:34px}
.brand-t{font-family:var(--f-head);font-size:1.22rem;font-weight:700;letter-spacing:-.01em}
.brand-s{display:block;font-family:var(--f-body);font-size:.7rem;font-weight:400;color:var(--muted);letter-spacing:.06em;text-transform:uppercase}
.mainnav ul{list-style:none;display:flex;flex-wrap:wrap;gap:4px 18px;margin:0;padding:0}
.mainnav a{color:var(--ink-soft);text-decoration:none;font-size:.93rem}
.mainnav a:hover,.mainnav a[aria-current="page"]{color:var(--brand);text-decoration:underline}

/* ---------- layout ---------- */
.wrap{
  max-width:var(--maxw);
  width:100%;
  margin:0 auto;
  padding:26px 18px 48px;
  display:grid;
  grid-template-columns:minmax(0,1fr) 300px;
  gap:38px;
  align-items:start;
  flex:1 0 auto;
}
.wrap.narrow{grid-template-columns:minmax(0,1fr);max-width:820px}
main{min-width:0}
.rail{min-width:0;display:flex;flex-direction:column;gap:20px;position:sticky;top:18px}
@media (max-width:960px){
  .wrap{grid-template-columns:minmax(0,1fr);gap:28px}
  .rail{position:static}
}

/* ---------- article furniture ---------- */
.byline{
  font-size:.9rem;color:var(--muted);
  border-bottom:1px solid var(--line);
  padding-bottom:12px;margin-bottom:22px;
}
.byline a{color:var(--muted)}
.lede{font-size:1.14rem;color:var(--ink-soft)}
.crumbs{font-size:.83rem;color:var(--muted);margin:0 0 10px}
.crumbs a{color:var(--muted)}

/* ---------- disclosure box ---------- */
.disclosure{
  background:var(--note-bg);
  border:1px solid var(--note-line);
  border-left:5px solid var(--brand);
  border-radius:var(--radius);
  padding:16px 18px;
  margin:0 0 26px;
  font-size:.95rem;
}
.disclosure h2,.disclosure p:last-child{margin-bottom:0}
.disclosure h2{
  font-family:var(--f-body);font-size:.8rem;font-weight:700;
  letter-spacing:.09em;text-transform:uppercase;color:var(--brand);
  border:0;margin:0 0 6px;padding:0;
}

/* ---------- callouts ---------- */
.note,.warn{
  border:1px solid var(--line);
  border-left:4px solid var(--accent);
  background:var(--surface);
  border-radius:var(--radius);
  padding:14px 16px;margin:0 0 1.4em;font-size:.96rem;
}
.warn{border-left-color:var(--brand);background:var(--note-bg);border-color:var(--note-line)}
.note > :last-child,.warn > :last-child{margin-bottom:0}
.note h3,.warn h3{margin-top:0;font-size:1.05rem}

/* ---------- call to action ---------- */
.cta{margin:1.6em 0 1.9em}
.cta-c{text-align:center}
.btn{
  display:inline-flex;flex-direction:column;align-items:center;gap:3px;
  background:var(--brand);color:#fff;
  font-weight:700;font-size:1.02rem;line-height:1.3;
  padding:13px 26px;border-radius:var(--radius);
  text-decoration:none;border:1px solid var(--brand);
  text-align:center;
}
.btn:hover{background:var(--brand-hover);border-color:var(--brand-hover);color:#fff;text-decoration:none}
.btn-outline{background:transparent;color:var(--brand)}
.btn-outline:hover{background:var(--brand-soft);color:var(--brand-hover)}
.btn-s{font-size:.93rem;padding:10px 18px;width:100%}
.btn-l{font-size:1.12rem;padding:16px 34px}
.btn-tag{
  font-size:.68rem;font-weight:700;letter-spacing:.11em;text-transform:uppercase;
  opacity:.9;font-family:var(--f-body);
}
.cta-note{
  font-size:.85rem;color:var(--muted);margin:.6em 0 0;line-height:1.5;
}
.cta-c .cta-note{max-width:44em;margin-left:auto;margin-right:auto}

/* ---------- cards / rail ---------- */
.card{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:16px 18px;
}
.card h2,.card h3{margin-top:0;border:0;padding:0}
.card h2{font-size:1.12rem}
.card > :last-child{margin-bottom:0}
.card ul{padding-left:1.1em}
.card-tint{background:var(--accent-soft);border-color:var(--line-strong)}

.toc ol{list-style:none;counter-reset:t;padding-left:0;margin-bottom:0}
.toc li{counter-increment:t;margin:.35em 0;font-size:.93rem}
.toc li::before{content:counter(t) ".";color:var(--muted);margin-right:.45em;font-variant-numeric:tabular-nums}
.toc a{color:var(--ink-soft);text-decoration:none}
.toc a:hover{color:var(--brand);text-decoration:underline}

/* ---------- facts table ---------- */
.facts{width:100%;border-collapse:collapse;font-size:.93rem;margin:0 0 1.2em}
.facts th,.facts td{text-align:left;vertical-align:top;padding:8px 10px;border-bottom:1px solid var(--line)}
.facts th{width:38%;color:var(--muted);font-weight:600}
.facts tr:last-child th,.facts tr:last-child td{border-bottom:0}

.tbl{width:100%;border-collapse:collapse;font-size:.94rem;margin:0 0 1.4em}
.tbl caption{caption-side:bottom;font-size:.85rem;color:var(--muted);padding-top:8px;text-align:left}
.tbl th,.tbl td{border:1px solid var(--line);padding:9px 11px;text-align:left;vertical-align:top}
.tbl thead th{background:var(--surface-2);font-family:var(--f-head)}
.tbl-scroll{overflow-x:auto;margin-bottom:1.4em}
.tbl-scroll .tbl{margin-bottom:0;min-width:520px}

/* ---------- figures ---------- */
figure{
  margin:1.8em 0;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:14px;
}
figure img{width:100%;border-radius:6px}
figcaption{
  font-size:.87rem;color:var(--muted);margin-top:10px;line-height:1.55;
}
figcaption b{color:var(--ink-soft)}

/* ---------- source list ---------- */
.sources{font-size:.9rem}
.sources li{margin:.5em 0;word-break:break-word}

/* ---------- pros / cons ---------- */
.pc{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:16px;margin:0 0 1.6em}
.pc ul{list-style:none;padding-left:0;margin-bottom:0}
.pc li{padding-left:1.5em;position:relative}
.pc .pro li::before{content:"+";position:absolute;left:0;color:var(--accent);font-weight:700}
.pc .con li::before{content:"\2212";position:absolute;left:0;color:var(--brand);font-weight:700}

/* ---------- faq ---------- */
.qa{border-top:1px solid var(--line);padding-top:1.1em;margin-top:1.1em}
.qa h3{margin-top:0}

/* ---------- footer ---------- */
.site-foot{
  background:var(--surface);
  border-top:1px solid var(--line);
  margin-top:auto;
  font-size:.9rem;
}
.site-foot-in{max-width:var(--maxw);margin:0 auto;padding:30px 18px 36px}
.foot-cols{display:grid;grid-template-columns:repeat(auto-fit,minmax(215px,1fr));gap:24px 32px;margin-bottom:24px}
.foot-cols h2{
  font-family:var(--f-body);font-size:.78rem;letter-spacing:.09em;text-transform:uppercase;
  color:var(--muted);border:0;padding:0;margin:0 0 .7em;
}
.foot-cols ul{list-style:none;padding:0;margin:0}
.foot-cols li{margin:.3em 0}
.foot-cols a{color:var(--ink-soft);text-decoration:none}
.foot-cols a:hover{color:var(--brand);text-decoration:underline}
.foot-id{color:var(--muted);line-height:1.6}
.foot-id strong{color:var(--ink-soft)}
.foot-legal{
  border-top:1px solid var(--line);padding-top:18px;color:var(--muted);font-size:.85rem;
}
.foot-legal p{margin:0 0 .7em}
.foot-legal p:last-child{margin-bottom:0}

/* ---------- 404 ---------- */
.mid{max-width:680px;margin:0 auto;padding:60px 18px 80px;text-align:center;flex:1 0 auto}

/* ---------- misc ---------- */
.skip{position:absolute;left:-9999px}
.skip:focus{left:8px;top:8px;z-index:50;background:var(--surface);padding:10px 14px;border:2px solid var(--brand);border-radius:6px}
.updated{font-size:.85rem;color:var(--muted)}
.tag{
  display:inline-block;font-size:.7rem;font-weight:700;letter-spacing:.09em;
  text-transform:uppercase;background:var(--accent-soft);color:var(--accent);
  border:1px solid var(--line-strong);border-radius:99px;padding:2px 10px;margin:0 6px 6px 0;
}