:root{
  --bg:#1a1614;
  --panel:#26211d;
  --edge:#3a322c;
  --ink:#e8e0d5;
  --dim:#9b8f81;
  --accent:#d8b36a;
  --bad:#d4614e;
  --good:#7aa05a;
}
*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0;
  background:
    radial-gradient(120% 90% at 50% -10%, #2f2823 0%, var(--bg) 60%);
  color:var(--ink);
  font:14px/1.45 ui-sans-serif,-apple-system,"Segoe UI",Roboto,sans-serif;
  -webkit-font-smoothing:antialiased;
}

/* layout */
main{
  display:flex;gap:28px;align-items:flex-start;justify-content:center;
  padding:60px 20px 52px;flex-wrap:wrap;
}
.stage{display:flex;flex-direction:column;align-items:center;gap:10px}
.hint{margin:0;font-size:12px;color:var(--dim);min-height:1.4em;text-align:center}
.hint.warn{color:var(--bad)}

/* the book */
.bookwrap{position:relative;line-height:0;filter:drop-shadow(0 12px 28px rgba(0,0,0,.55))}
#book{display:block;image-rendering:pixelated;image-rendering:crisp-edges;cursor:text}
#sink{
  position:absolute;inset:0;width:100%;height:100%;
  opacity:0;resize:none;border:0;padding:0;margin:0;
  font:16px/1 monospace; /* keeps iOS from zooming on focus */
  background:transparent;color:transparent;caret-color:transparent;
  pointer-events:none;   /* the canvas owns the mouse; we focus() this manually */
}

/* panel */
.panel{display:flex;align-items:flex-start;gap:14px;max-width:100%}
.col{display:flex;flex-direction:column;gap:14px;width:300px;max-width:100%}
.group{
  background:var(--panel);border:1px solid var(--edge);border-radius:8px;padding:14px;
}
.grouphead{
  font-size:11px;letter-spacing:.12em;text-transform:uppercase;color:var(--dim);
  margin-bottom:10px;display:flex;justify-content:space-between;
}
.grouphead b{color:var(--ink);letter-spacing:0;text-transform:none;font-size:13px}
.row{display:flex;gap:8px;margin-bottom:8px}
.row:last-child{margin-bottom:0}
.row.end{justify-content:flex-end;margin-top:12px}
.row .mc{flex:1}

/* minecraft button, 9-sliced from the game's own widget/button.png */
button.mc{
  font:inherit;font-size:12px;color:#fff;text-shadow:1px 1px 0 rgba(0,0,0,.6);
  padding:7px 10px;min-height:34px;cursor:pointer;
  background:transparent;border:0;
  border-image:var(--btn) 3 fill / 3px / 0 stretch;
  image-rendering:pixelated;
}
button.mc:hover:not(:disabled){border-image-source:var(--btnH);color:#ffffa0}
button.mc:active:not(:disabled){transform:translateY(1px)}
button.mc:disabled{opacity:.4;cursor:default;color:#a0a0a0}
button.mc.danger:hover:not(:disabled){color:#ff9c8a}

.meters{list-style:none;margin:12px 0 0;padding:0;display:flex;flex-direction:column;gap:9px}
.meters li{display:grid;grid-template-columns:1fr auto;gap:2px 8px;font-size:12px}
.meters span{color:var(--dim)}
.meters b{font-variant-numeric:tabular-nums;font-weight:500}
.bar{grid-column:1/-1;display:block;height:3px;background:#17130f;border-radius:2px;overflow:hidden}
.bar u{display:block;height:100%;width:0;background:var(--good);transition:width .12s linear}
.bar u.near{background:var(--accent)}
.bar u.full{background:var(--bad)}

.check{display:flex;align-items:center;gap:10px;font-size:13px;margin-bottom:14px;cursor:pointer;
  user-select:none;-webkit-user-select:none}
.check input{
  appearance:none;-webkit-appearance:none;margin:0;
  flex:0 0 18px;width:18px;height:18px;position:relative;cursor:pointer;
  background:#17130f;border:2px solid #4a403a;border-radius:3px;
  transition:background .12s ease,border-color .12s ease;
}
.check:hover input:not(:checked){border-color:#6b5c50}
.check input:checked{background:var(--accent);border-color:var(--accent)}
.check input:checked::after{
  content:"";position:absolute;left:4.5px;top:1px;
  width:4px;height:9px;border:solid #17130f;border-width:0 2px 2px 0;
  transform:rotate(42deg);
}
.check input:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.field{display:block;margin-bottom:10px;font-size:11px;letter-spacing:.1em;
  text-transform:uppercase;color:var(--dim)}
.field small{float:right;letter-spacing:0;text-transform:none;font-variant-numeric:tabular-nums}
.field small.over{color:var(--bad)}
.field input{
  display:block;width:100%;margin-top:5px;padding:8px 9px;
  background:#1d1917;border:1px solid var(--edge);border-radius:4px;
  color:var(--ink);font:inherit;font-size:13px;letter-spacing:0;text-transform:none;
}
.field input:focus{outline:none;border-color:var(--accent)}
.field input:disabled{opacity:.45}
.note{margin:8px 0 0;font-size:11.5px;line-height:1.5;color:var(--dim)}
.note.ok{color:var(--good)}
.note.bad{color:var(--bad)}
code{font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:11px;color:var(--accent)}

/* limits sheet */
button.info{
  position:fixed;top:16px;right:16px;z-index:5;
  width:32px;height:32px;padding:0;border-radius:50%;
  display:grid;place-items:center;cursor:pointer;
  background:transparent;border:1px solid var(--edge);color:var(--dim);
  transition:color .12s ease,border-color .12s ease,background .12s ease;
}
button.info svg{width:19px;height:19px;display:block}
button.info:hover{color:var(--accent);border-color:var(--accent);background:rgba(216,179,106,.08)}
button.info:focus-visible{outline:2px solid var(--accent);outline-offset:2px}

.sheet dl{display:grid;grid-template-columns:1fr auto;gap:7px 16px;margin:16px 0 0;font-size:13px}
.sheet dt{color:var(--dim)}
.sheet dd{margin:0;font-variant-numeric:tabular-nums}
.sheet dt,.sheet dd{padding-bottom:7px;border-bottom:1px solid #2f2926}
.sheet dl>:nth-last-child(-n+2){border-bottom:0}

/* modal */
.modal{position:fixed;inset:0;background:rgba(0,0,0,.65);display:flex;
  align-items:center;justify-content:center;padding:20px;z-index:10}
.modal[hidden]{display:none}
.sheet{background:var(--panel);border:1px solid var(--edge);border-radius:10px;
  padding:18px;width:min(620px,100%)}
.sheet.narrow{width:min(420px,100%)}
.sheet h2{margin:0 0 4px;font-size:14px;letter-spacing:.1em;text-transform:uppercase;color:var(--accent)}
.sheet textarea{
  width:100%;height:240px;margin-top:12px;padding:10px;resize:vertical;
  background:#1d1917;border:1px solid var(--edge);border-radius:4px;color:var(--ink);
  font:13px/1.5 ui-monospace,SFMono-Regular,Menlo,monospace;
}
.sheet textarea:focus{outline:none;border-color:var(--accent)}
.sheet .row .mc{flex:0 0 auto;min-width:120px}

/* no room beside the book for two panel columns, so stack them */
@media (max-width:1240px){
  .panel{flex-direction:column}
  .col{width:330px}
}
@media (max-width:760px){
  main{gap:20px;padding:58px 12px 40px}
  .panel{width:100%;max-width:460px}
  .col{width:100%}
}