/* Shared "card UI" component styles for the interactive simulations.
   Link this after theme.css; keep each simulation's own <style> block for
   layout/canvas specifics and anything that diverges from these defaults.
   Local :root declarations after this file's link can still override
   --radius/--mono for a given page if a simulation genuinely needs to. */
:root {
  --radius: 6px;
  --mono: ui-monospace, "Cascadia Code", "Fira Code", Consolas, monospace;
}

*{box-sizing:border-box;}
html,body{margin:0;padding:0;}
body{
  background:var(--bg); color:var(--text); font-family:var(--font);
  -webkit-font-smoothing:antialiased; padding:16px; line-height:1.45;
}
.wrap{max-width:1180px;margin:0 auto;}

header{display:flex;align-items:baseline;gap:14px;flex-wrap:wrap;padding-bottom:14px;}
.eyebrow{
  font-family:var(--font);font-weight:600;font-size:11px;letter-spacing:.02em;
  color:var(--muted-dim);border:1px solid var(--border);border-radius:2px;padding:5px 9px;
}
h1{font-size:1.3rem;font-weight:600;letter-spacing:-.01em;margin:0;line-height:1.2;}
.tagline{color:var(--muted);font-size:13px;margin-left:auto;line-height:1.5;}
@media(max-width:720px){.tagline{margin-left:0;flex-basis:100%;}}

@media(max-width:860px){.stage{grid-template-columns:1fr;}}
.left-col{display:flex;flex-direction:column;gap:14px;min-height:0;}

.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:12px;}
.card-label{
  display:flex;justify-content:space-between;align-items:center;
  font-family:var(--font);font-weight:600;font-size:10.5px;letter-spacing:.02em;
  color:var(--muted-dim);margin-bottom:8px;
}
.card-label .right{color:var(--gold);}
.chip-toggle{
  font-family:var(--font);font-weight:600;font-size:9.5px;letter-spacing:.02em;
  padding:4px 9px;border-radius:3px;border:1px solid var(--border);
  background:transparent;color:var(--muted-dim);cursor:pointer;
  transition:background .15s,color .15s,border-color .15s;
}
.chip-toggle:hover:not(.active){color:var(--text);border-color:var(--muted-dim);}
.chip-toggle.active{background:var(--raised);color:var(--gold);border-color:var(--gold-dim);}

canvas{display:block;width:100%;height:auto;border-radius:3px;background:var(--raised);}

.readout{display:flex;flex-direction:column;}
.graph-wrap{flex:1;min-height:0;}

.recipe-card .row{display:flex;justify-content:space-between;align-items:baseline;gap:8px;padding:6px 0;border-bottom:1px solid var(--border-soft);font-size:12.5px;}
.recipe-card .row:last-child{border-bottom:none;}
.recipe-card .row .k{color:var(--muted);}
.recipe-card .row .v{font-family:var(--mono);color:var(--text);text-align:right;}
.recipe-card .row .v.accent{color:var(--gold);}

.stats{
  display:grid;gap:1px;
  background:var(--border-soft);border:1px solid var(--border-soft);
  border-radius:4px;overflow:hidden;margin-top:12px;
}
.stat{background:var(--raised);padding:9px 11px;}
.stat .k{font-family:var(--font);font-weight:600;font-size:9.5px;letter-spacing:.02em;color:var(--muted-dim);display:block;margin-bottom:4px;}
.stat .v{font-family:var(--mono);font-weight:500;color:var(--text);}
.stat.accent .v{color:var(--gold);}

.headline{
  margin-top:12px;font-size:13px;line-height:1.55;color:var(--text);
  background:var(--raised);border:1px solid var(--border-soft);border-radius:6px;padding:10px 12px;
}
.headline b{color:var(--gold);}

.caveat{margin-top:10px;font-size:12px;color:var(--muted);line-height:1.5;border-left:2px solid var(--gold-dim);padding-left:9px;}
.caveat b{color:var(--text);font-weight:500;}
.caveat.warn{border-left-color:#e0625a;}

.controls{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:16px 18px;}
.ctl-row{display:flex;flex-wrap:wrap;align-items:flex-end;gap:14px 22px;padding-bottom:14px;margin-bottom:14px;border-bottom:1px solid var(--border-soft);}
.ctl-row:last-child{border-bottom:none;margin-bottom:0;padding-bottom:0;}
.ctl-label{font-family:var(--font);font-weight:600;font-size:10.5px;letter-spacing:.02em;color:var(--muted-dim);}
.select-block{display:flex;flex-direction:column;gap:7px;}
select{font-family:var(--font);font-size:13.5px;color:var(--text);background:var(--raised);border:1px solid var(--border);border-radius:4px;padding:8px 10px;cursor:pointer;}
select:focus-visible{outline:2px solid var(--accent);outline-offset:1px;}

.slider-row{flex:1 1 200px;display:flex;flex-direction:column;gap:7px;}
.slider-head{display:flex;justify-content:space-between;align-items:baseline;gap:8px;}
.slider-head .val{font-family:var(--mono);font-size:13px;color:var(--text);white-space:nowrap;}

input[type=range]{-webkit-appearance:none;appearance:none;width:100%;height:3px;background:var(--border);border-radius:99px;outline:none;cursor:pointer;}
input[type=range]::-webkit-slider-thumb{-webkit-appearance:none;appearance:none;width:14px;height:14px;border-radius:50%;background:var(--gold);border:2px solid var(--bg);box-shadow:0 0 0 1px var(--border);cursor:pointer;margin-top:-5.5px;}
input[type=range]::-moz-range-thumb{width:14px;height:14px;border-radius:50%;background:var(--gold);border:2px solid var(--bg);box-shadow:0 0 0 1px var(--border);cursor:pointer;}
input[type=range]::-moz-range-track{height:3px;background:var(--border);border-radius:99px;}

.btn{font-family:var(--mono);font-size:13px;font-weight:500;letter-spacing:.03em;cursor:pointer;border-radius:4px;padding:10px 18px;white-space:nowrap;transition:background .15s,border-color .15s,color .15s,opacity .15s;}
.btn-run{background:var(--text);color:var(--bg);border:1px solid var(--text);min-width:96px;}
.btn-run:hover{opacity:.85;}
.btn-ghost{background:transparent;color:var(--muted);border:1px solid var(--border);}
.btn-ghost:hover{color:var(--text);border-color:var(--muted-dim);}
.btn:focus-visible{outline:2px solid var(--accent);outline-offset:2px;}
.step-buttons{display:flex;gap:6px;align-items:center;flex-wrap:wrap;margin-top:2px;}
.btn-step{padding:5px 10px;font-size:11.5px;min-width:0;}
.ctl-run{display:flex;gap:10px;align-items:center;margin-left:auto;}
@media(max-width:480px){ .ctl-run{width:100%;margin-left:0;justify-content:flex-end;} }

.note{margin-top:14px;border:1px solid var(--border-soft);border-radius:6px;padding:14px 16px;background:var(--surface);}
.note summary{cursor:pointer;font-family:var(--font);font-weight:600;font-size:10.5px;letter-spacing:.02em;color:var(--gold-dim);}
.note p{margin:10px 0 0;font-size:12.5px;line-height:1.6;color:var(--muted);}
.note b{color:var(--text);font-weight:500;}