/* Mutelocus — armoured registry card. Flat, industrial, no ornament. */

:root{
  --bg:#e9ebe8;
  --text:#20262b;
  --accent:#3d5a6c;
  --accent-2:#c9962b;
  --card:#ffffff;
}

*{box-sizing:border-box}

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

body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font:17px/1.65 -apple-system,"Segoe UI",Helvetica,Arial,sans-serif;
}

/* ---------- type ---------- */

h1,h2,h3,h4,
.brand-t,.rk,.rv,.unit,.stamp,.menu-btn,.step-ind,.spec th,.kicker,.btn{
  font-family:"SF Mono",ui-monospace,Menlo,Consolas,monospace;
  text-transform:uppercase;
  letter-spacing:0.10em;
}

h1{font-size:1.5rem;line-height:1.35;margin:0 0 .6rem}
h2{font-size:1.05rem;line-height:1.4;margin:2.6rem 0 .8rem;padding-bottom:.45rem;border-bottom:2px solid var(--accent)}
h3{font-size:.92rem;line-height:1.4;margin:1.9rem 0 .6rem}
h4{font-size:.82rem;margin:1.4rem 0 .5rem}

p{margin:0 0 1.05rem}

a{color:var(--accent)}
a:focus-visible,button:focus-visible{outline:3px solid var(--accent-2);outline-offset:2px}

strong{font-weight:700}

.lead{font-size:1.08rem}

/* ---------- skip link ---------- */

.skip{
  position:absolute;left:-9999px;top:0;z-index:50;
  background:var(--accent);color:#fff;padding:.7rem 1rem;text-decoration:none;
}
.skip:focus{left:0}

/* ---------- header ---------- */

.site-head{
  position:sticky;top:0;z-index:40;
  background:var(--card);
  border-bottom:2px solid var(--accent);
}
.head-in{
  max-width:884px;margin:0 auto;padding:.55rem 16px;
  display:flex;align-items:center;gap:1rem;flex-wrap:wrap;
}
.brand{display:flex;align-items:center;gap:.5rem;text-decoration:none;color:var(--text);margin-right:auto}
.brand-mark{
  display:inline-flex;align-items:center;justify-content:center;
  width:26px;height:26px;background:var(--accent);color:var(--card);
  font-family:"SF Mono",ui-monospace,Menlo,Consolas,monospace;font-size:14px;
}
.brand-t{font-size:.9rem;font-weight:700}
.site-nav{display:flex;gap:1.2rem}
.site-nav a{
  font-family:"SF Mono",ui-monospace,Menlo,Consolas,monospace;
  text-transform:uppercase;letter-spacing:.10em;font-size:.72rem;
  text-decoration:none;padding:.35rem 0;border-bottom:2px solid transparent;
}
.site-nav a:hover,.site-nav a:focus{border-bottom-color:var(--accent-2)}
.menu-btn{
  display:none;background:var(--card);color:var(--text);
  border:2px solid var(--accent);border-radius:0;
  font-size:.72rem;padding:.4rem .7rem;cursor:pointer;
}

/* ---------- layout ---------- */

.wrap{
  max-width:884px;margin:0 auto;padding:0 16px;
  display:grid;grid-template-columns:620px 200px;gap:32px;align-items:start;
}
main{min-width:0;padding:2rem 0 3rem}

.rail{position:sticky;top:64px;padding:2rem 0 3rem;display:grid;gap:12px}
.rcard{background:var(--card);border:2px solid var(--accent);padding:.65rem .7rem}
.rk{
  margin:0 0 .25rem;font-size:.63rem;color:var(--accent);
  font-family:"SF Mono",ui-monospace,Menlo,Consolas,monospace;
  text-transform:uppercase;letter-spacing:.10em;
}
.rv{margin:0;font-size:.74rem;font-weight:700;
  font-family:"SF Mono",ui-monospace,Menlo,Consolas,monospace;
  text-transform:uppercase;letter-spacing:.10em;}
.rn{margin:.4rem 0 0;font-size:.78rem;line-height:1.45}
.rlist{list-style:none;margin:0;padding:0}
.rlist li{border-top:1px solid var(--accent);padding:.3rem 0}
.rlist li:first-child{border-top:0}
.rlist a{font-size:.78rem;text-decoration:none}
.rlist a:hover{text-decoration:underline}

/* ---------- unit markers ---------- */

.unit{
  display:inline-block;font-size:.63rem;
  border:1px solid var(--accent);
  background:rgba(201,150,43,.14);
  padding:.14rem .4rem;margin-bottom:.4rem;
}

/* ---------- hero card ---------- */

.hero{
  position:relative;background:var(--card);
  border:2px solid var(--accent);padding:1.4rem 1.3rem .4rem;margin-bottom:1.6rem;
}
.stamp{
  position:absolute;top:10px;right:10px;
  font-size:.58rem;border:1px solid var(--accent);
  background:rgba(201,150,43,.08);padding:.2rem .4rem;color:var(--text);
}
.hero h1{margin-top:.6rem}

.step-ind{
  font-size:.68rem;border:2px solid var(--accent);display:inline-block;
  padding:.2rem .5rem;margin:0 0 1rem;
}

.kicker{font-size:.68rem;color:var(--accent);margin:0 0 .2rem}

/* ---------- disclosure ---------- */

.disclosure{
  background:var(--card);border:2px solid var(--accent);
  border-left:8px solid var(--accent-2);
  padding:1rem 1.1rem;margin:1.6rem 0;
}
.disclosure p:last-child{margin-bottom:0}
.disclosure h2{
  margin:0 0 .6rem;font-size:.78rem;border:0;padding:0;
}

/* ---------- affiliate link note ---------- */

.aff-note{display:block;font-size:.88rem;margin:-.6rem 0 1.05rem;color:var(--text)}

/* ---------- boxes and lists ---------- */

.box{
  background:var(--card);border:2px solid var(--accent);
  padding:1rem 1.1rem;margin:1.6rem 0;
}
.box > :last-child{margin-bottom:0}
.box h3{margin-top:0}

.summary{
  background:var(--card);border:2px solid var(--accent);
  border-top:8px solid var(--accent-2);padding:1rem 1.1rem;margin:1.8rem 0;
}
.summary > :last-child{margin-bottom:0}

ul,ol{margin:0 0 1.05rem;padding-left:1.3rem}
li{margin:0 0 .45rem}

.steps-list{list-style:none;padding:0;counter-reset:s}
.steps-list li{
  counter-increment:s;background:var(--card);border:2px solid var(--accent);
  padding:.7rem .9rem;margin:0 0 .5rem;display:flex;gap:.8rem;align-items:baseline;
}
.steps-list li::before{
  content:counter(s,decimal-leading-zero);
  font-family:"SF Mono",ui-monospace,Menlo,Consolas,monospace;
  font-size:.8rem;letter-spacing:.10em;
  border:1px solid var(--accent);background:rgba(201,150,43,.14);
  padding:.1rem .35rem;flex:0 0 auto;
}

/* checklists: printed boxes with a crosshair mark, no stored state */
.check{list-style:none;padding:0;margin:1rem 0 1.4rem}
.check li{
  position:relative;padding-left:2.1rem;margin:0 0 .6rem;min-height:1.4rem;
}
.check li::before{
  content:"";position:absolute;left:0;top:.18rem;
  width:18px;height:18px;border:2px solid var(--accent);background:var(--card);
  background-image:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 18 18'><g fill='none' stroke='%233d5a6c' stroke-width='1'><circle cx='9' cy='9' r='3.6'/><path d='M9 1v3.2M9 13.8V17M1 9h3.2M13.8 9H17'/></g></svg>");
  background-repeat:no-repeat;background-position:center;background-size:14px 14px;
}

.gloss{border-top:2px solid var(--accent);border-bottom:2px solid var(--accent);padding:.8rem 0;margin:1.6rem 0}
.gloss dt{font-weight:700;margin-top:.6rem;font-size:.95rem}
.gloss dt:first-child{margin-top:0}
.gloss dd{margin:.15rem 0 0}

dl.checked dt{font-weight:700;margin-top:.9rem}
dl.checked dd{margin:.15rem 0 0}

/* ---------- tables ---------- */

table{border-collapse:collapse;width:100%;margin:1.3rem 0;background:var(--card);font-size:.95rem}
caption{text-align:left;font-size:.85rem;margin-bottom:.4rem}
th,td{border:1px solid var(--accent);padding:.5rem .6rem;text-align:left;vertical-align:top}
thead th{border-bottom:3px solid var(--accent-2);font-size:.7rem}

/* ---------- contents and pager ---------- */

.toc{background:var(--card);border:2px solid var(--accent);padding:.9rem 1rem .9rem 2.2rem;margin:1.4rem 0 2rem}
.toc li{margin-bottom:.3rem}

.pager{display:flex;justify-content:space-between;gap:1rem;border-top:2px solid var(--accent);padding-top:1rem;margin-top:2.4rem;flex-wrap:wrap}
.pager a{
  font-family:"SF Mono",ui-monospace,Menlo,Consolas,monospace;
  text-transform:uppercase;letter-spacing:.10em;font-size:.7rem;text-decoration:none;
  border:2px solid var(--accent);padding:.5rem .7rem;background:var(--card);
}
.pager a:hover{background:rgba(201,150,43,.14)}

.btn{
  display:inline-block;border:2px solid var(--accent);background:var(--card);
  color:var(--text);padding:.55rem .9rem;font-size:.72rem;cursor:pointer;border-radius:0;
}
.btn:hover{background:rgba(201,150,43,.14)}

/* ---------- footer ---------- */

.site-foot{border-top:2px solid var(--accent);background:var(--card);margin-top:0}
.foot-in{max-width:884px;margin:0 auto;padding:1.6rem 16px 2.2rem;font-size:.9rem}
.foot-site{
  font-family:"SF Mono",ui-monospace,Menlo,Consolas,monospace;
  text-transform:uppercase;letter-spacing:.10em;font-weight:700;margin:0 0 .5rem;font-size:.8rem;
}
.foot-addr{font-style:normal;line-height:1.7;margin:0 0 .9rem}
.foot-links{margin:0 0 .9rem}
.foot-tm{margin:0 0 .9rem;max-width:62ch}
.foot-rev{margin:0;font-size:.85rem}

/* ---------- responsive ---------- */

@media (max-width:900px){
  .wrap{grid-template-columns:1fr;gap:0}
  .rail{position:static;padding:0 0 2.4rem;grid-template-columns:1fr 1fr}
  main{padding-bottom:2rem}
}

@media (max-width:620px){
  body{font-size:16px}
  .rail{grid-template-columns:1fr}
  .menu-btn{display:block}
  .site-nav{display:none;width:100%;flex-direction:column;gap:0;border-top:2px solid var(--accent);margin-top:.5rem}
  .site-nav.open{display:flex}
  .site-nav a{padding:.6rem 0;border-bottom:1px solid var(--accent)}
  h1{font-size:1.25rem}
  table{font-size:.9rem}
}

/* ---------- print: the checklists must come out clean on white ---------- */

@media print{
  .site-head,.rail,.pager,.site-foot .foot-links,.btn,.skip,.toc{display:none !important}
  body{background:#fff;color:#000;font-size:11.5pt}
  .wrap{display:block;max-width:none;padding:0}
  main{padding:0}
  .hero,.box,.summary,.disclosure,.rcard,table,.steps-list li{
    background:#fff;border-color:#000;
  }
  .stamp{border-color:#000;background:#fff}
  thead th{border-bottom:2px solid #000}
  .check li::before{border-color:#000;background-image:none}
  h2{border-bottom-color:#000;page-break-after:avoid}
  h3{page-break-after:avoid}
  .check,.box,.summary{page-break-inside:avoid}
  a{color:#000;text-decoration:none}
  .site-foot{border-top:1px solid #000}
}