:root{
  --paper:#F7F6F2;
  --card:#FFFFFF;
  --ink:#1B1E24;
  --mute:#4F5560;
  --rule:#D8D5CC;
  --a:#2B3A67;
  --b:#9A5B14;
  --cross:#0F6B4A;
  --focus:#2B3A67;
}
@media (prefers-color-scheme: dark){
  :root:not([data-theme="light"]){
    --paper:#15171B;--card:#1D2027;--ink:#EDEDEA;--mute:#A8AEB8;--rule:#343943;
    --a:#8FA6E8;--b:#E0A961;--cross:#5CC49A;--focus:#8FA6E8;
  }
}
:root[data-theme="dark"]{
  --paper:#15171B;--card:#1D2027;--ink:#EDEDEA;--mute:#A8AEB8;--rule:#343943;
  --a:#8FA6E8;--b:#E0A961;--cross:#5CC49A;--focus:#8FA6E8;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;background:var(--paper);color:var(--ink);
  font-family:"Libre Franklin",Helvetica,Arial,sans-serif;
  font-size:18px;line-height:1.65;font-feature-settings:"tnum" 1;
}
.wrap{max-width:900px;margin:0 auto;padding:0 20px}
.bar{border-bottom:2px solid var(--rule);background:var(--card)}
.bar .inner{max-width:900px;margin:0 auto;padding:14px 20px;display:flex;justify-content:space-between;align-items:center;gap:14px}
.mark{font-family:"Source Serif 4",Georgia,serif;font-size:20px;font-weight:600}
.tbtn{background:none;border:2px solid var(--rule);color:var(--mute);border-radius:6px;padding:8px 14px;font:inherit;font-size:16px;cursor:pointer}
.tbtn:hover{color:var(--ink);border-color:var(--focus)}

h1{font-family:"Source Serif 4",Georgia,serif;font-weight:600;font-size:clamp(30px,5vw,42px);line-height:1.12;margin:34px 0 12px;max-width:24ch}
.lede{color:var(--mute);max-width:60ch;margin:0 0 30px}

.panel{background:var(--card);border:2px solid var(--rule);border-radius:8px;padding:24px;margin-bottom:26px}
.grid2{display:grid;grid-template-columns:1fr 1fr;gap:22px}
@media (max-width:640px){.grid2{grid-template-columns:1fr}}
.f{margin-bottom:22px}
.f:last-child{margin-bottom:0}
.f label{display:block;font-weight:500;margin-bottom:6px}
.hint{display:block;font-weight:400;font-size:15px;color:var(--mute);margin-top:-4px;margin-bottom:6px}
.box{display:flex;align-items:center;gap:4px;border:2px solid var(--rule);border-radius:6px;padding:8px 12px;background:var(--card)}
.box:focus-within{border-color:var(--focus)}
.box input{border:0;background:none;color:var(--ink);font:inherit;font-size:22px;width:100%;min-width:0;padding:2px 0}
.box input:focus{outline:none}
.box .u{color:var(--mute);font-size:20px}

.sl{margin-bottom:24px}
.sl .top{display:flex;justify-content:space-between;align-items:baseline;gap:12px;margin-bottom:2px}
.sl .top b{font-weight:500}
.sl .val{font-size:22px;font-weight:600}
.sl .val.a{color:var(--a)}
.sl .val.b{color:var(--b)}
input[type=range]{width:100%;height:30px;margin:0}
#planA{accent-color:var(--a)}
#planB{accent-color:var(--b)}
#death,#disc{accent-color:var(--mute)}

.verdict{background:var(--card);border:2px solid var(--rule);border-left:8px solid var(--cross);border-radius:8px;padding:22px 24px;margin-bottom:26px}
.verdict p{font-family:"Source Serif 4",Georgia,serif;font-size:clamp(20px,3vw,25px);line-height:1.4;margin:0}
.verdict strong{color:var(--cross)}
.verdict .sub{font-family:"Libre Franklin",sans-serif;font-size:17px;color:var(--mute);margin-top:12px}

svg.chart{width:100%;height:auto;display:block}
.key{display:flex;gap:22px;flex-wrap:wrap;font-size:16px;margin-top:10px}
.key i{display:inline-block;width:22px;height:4px;vertical-align:middle;margin-right:8px;border-radius:2px}

table{width:100%;border-collapse:collapse;font-size:17px;margin-top:8px}
caption{text-align:left;font-weight:600;padding-bottom:10px}
th,td{padding:10px 8px;text-align:right;border-bottom:1px solid var(--rule)}
th:first-child,td:first-child{text-align:left}
thead th{font-size:15px;color:var(--mute);font-weight:500}
tr.best td{background:color-mix(in srgb,var(--cross) 12%,transparent);font-weight:600}
.scroll{overflow-x:auto}

.ad{margin:32px 0;padding:16px;border:2px dashed var(--rule);border-radius:8px;text-align:center;color:var(--mute);font-size:16px;min-height:120px;display:flex;align-items:center;justify-content:center}

.prose{max-width:64ch;margin:36px 0}
.prose h2{font-family:"Source Serif 4",Georgia,serif;font-size:28px;font-weight:600;line-height:1.2;margin:36px 0 12px}
.prose h3{font-size:19px;font-weight:600;margin:26px 0 4px}
.prose p{margin:0 0 16px}
.prose ul{padding-left:22px;margin:0 0 16px}
.prose li{margin-bottom:8px}
.prose strong{font-weight:600}

footer{border-top:2px solid var(--rule);margin-top:40px;padding:24px 0 56px}
footer p{color:var(--mute);font-size:15px;max-width:64ch;margin:0 0 10px}
:focus-visible{outline:3px solid var(--focus);outline-offset:2px}

/* ---- shared nav + article styles ---- */
.nav{border-bottom:2px solid var(--rule);background:var(--card)}
.nav{display:flex;gap:4px;overflow-x:auto;padding:0 12px;scrollbar-width:none}
.nav::-webkit-scrollbar{display:none}
.nav a{color:var(--mute);text-decoration:none;padding:12px 12px;font-size:16px;white-space:nowrap;border-bottom:3px solid transparent}
.nav a:hover{color:var(--ink)}
.nav a[aria-current="page"]{color:var(--ink);font-weight:600;border-bottom-color:var(--a)}
.next{background:var(--card);border:2px solid var(--rule);border-radius:8px;padding:20px 22px;margin:32px 0}
.next h2{font-family:"Source Serif 4",Georgia,serif;font-size:21px;margin:0 0 10px}
.next ul{margin:0;padding-left:20px}
.next a{color:var(--a)}
.callout{border-left:6px solid var(--b);background:var(--card);padding:16px 20px;border-radius:0 8px 8px 0;margin:22px 0}
.callout p:last-child{margin-bottom:0}