/* Get Lean theme — Emil Kowalski diagram grammar, green accent. */
:root{
  color-scheme: light dark;
  --paper:#faf9f6; --ink:#1e1c18; --soft:#6f6a5e;
  --line:#d8d2c2; --faint:#b9b2a1; --card:#ffffff;
  --green:#16a34a; --green-ink:#15803d; --gold:#b97f1f;
  --mono:ui-monospace,"JB Mono","Geist Mono",SFMono-Regular,Menlo,Consolas,monospace;
}
@media (prefers-color-scheme: dark){
  :root{
    --paper:#232326; --ink:#edeae2; --soft:#a8a196;
    --line:#43434a; --faint:#55555e; --card:#2b2b2f;
    --green:#4ade80; --green-ink:#4ade80; --gold:#d9a441;
  }
}
*{box-sizing:border-box}
body{margin:0;background:var(--paper);color:var(--ink);
  font:16px/1.65 var(--mono);
  font-variant-numeric:tabular-nums;}
.top{display:flex;align-items:center;gap:1rem;flex-wrap:wrap;
  padding:.8rem 1.2rem;border-bottom:1px dashed var(--faint);
  background:var(--paper);position:sticky;top:0;z-index:5;}
.brand{font-family:var(--mono);font-weight:700;font-size:1.05rem;
  letter-spacing:.02em;color:var(--ink);text-decoration:none;text-transform:lowercase;}
.brand::before{content:"+-- ";color:var(--faint);}
nav{display:flex;gap:.6rem;flex-wrap:wrap}
nav a{font-family:var(--mono);font-size:.9rem;padding:.3rem .2rem;
  text-decoration:none;color:var(--soft);}
nav a::before{content:"[ ";color:var(--faint);}
nav a::after{content:" ]";color:var(--faint);}
nav a.on,nav a:hover{color:var(--green-ink);}
nav a.on::before,nav a.on::after,nav a:hover::before,nav a:hover::after{color:var(--green-ink);}
main{max-width:46rem;margin:0 auto;padding:2rem 1.2rem 4rem;}
h1{font-size:1.35rem;font-weight:700;margin:1rem 0 1.5rem;letter-spacing:.02em;}
h1::before{content:"[ ";color:var(--green-ink);}
h1::after{content:" ]";color:var(--green-ink);}
h2{font-size:.95rem;font-weight:700;text-transform:uppercase;letter-spacing:.12em;
  margin:2.5rem 0 1rem;padding-top:1.25rem;border-top:1px dashed var(--faint);
  color:var(--green-ink);}
h2::before{content:"[ ";}
h2::after{content:" ]";}
h3{font-size:.95rem;margin:1.5rem 0 .5rem;}
ul,ol{padding-left:1.4rem;} li{margin:.4em 0;}
li::marker{color:var(--faint);}
li.check{list-style:none;margin:.45em 0;}
li.check::marker{content:"";}
li.check label{display:flex;gap:.7em;align-items:baseline;cursor:pointer;
  padding:.15em 0;}
li.check input[type=checkbox]{position:absolute;opacity:0;pointer-events:none;}
li.check label span{display:block;padding-left:4ch;text-indent:-4ch;}
li.check label span::before{content:"[ ] ";color:var(--green-ink);font-weight:700;}
li.check input[type=checkbox]:checked + span::before{content:"[x] ";}
li.check input[type=checkbox]:checked + span{color:var(--soft);
  text-decoration:line-through;text-decoration-color:var(--green);}
ul:has(> li.check){padding-left:0;}
table{width:100%;border-collapse:collapse;margin:1.25em 0;font-size:.92rem;
  display:block;overflow-x:auto;border:1px dashed var(--faint);border-radius:16px;
  padding:4px;}
th,td{padding:.55rem .7rem;text-align:left;vertical-align:top;border:0;
  border-bottom:1px dashed var(--line);}
tr:last-child th,tr:last-child td{border-bottom:0;}
th{color:var(--soft);font-weight:400;text-transform:uppercase;font-size:.78rem;letter-spacing:.08em;}
td:last-child,th:last-child{text-align:right;}
table.ing td:last-child{text-align:left;}
blockquote{background:var(--card);border:1px dashed var(--faint);border-radius:12px;
  margin:1.25em 0;padding:.8em 1em;}
blockquote p{margin:.3em 0;}
strong{color:var(--ink);}
a{color:var(--green-ink);text-decoration:underline;text-decoration-style:dashed;
  text-underline-offset:3px;}
hr{border:0;border-top:1px dashed var(--faint);margin:2rem 0;}
footer{border-top:1px dashed var(--faint);text-align:center;color:var(--soft);
  padding:1.5rem;font-size:.8rem;}
footer::before{content:"+ - - - - - - - - +";display:block;color:var(--faint);
  letter-spacing:.3em;margin-bottom:1rem;}
.crumb{font-size:.82rem;color:var(--soft);margin:0 0 .5rem;}
.crumb a{color:var(--green-ink);}
@media (max-width:560px){body{font-size:15px} h1{font-size:1.15rem}}
@media print{.top{display:none} body{background:#fff} main{max-width:none}
  h1::before,h1::after,h2::before,h2::after{content:"";}}