*{box-sizing:border-box}
:root{
  --soil:#12140f; --panel:#1a1e16; --line:#2a2f26;
  --ink:#e8ecd8; --muted:#9aa393; --accent:#c6e06a; --accent2:#8ad9a0;
  --nutrient:#ff9a5c;
}
body{
  margin:0; min-height:100vh;
  background:
    radial-gradient(900px 500px at 30% 0%, rgba(198,224,106,.08), transparent 60%),
    radial-gradient(700px 400px at 90% 100%, rgba(138,217,160,.07), transparent 60%),
    var(--soil);
  color:var(--ink);
  font-family: ui-sans-system, system-ui, -apple-system, Segoe UI, Roboto, Inter, sans-serif;
  display:flex; flex-direction:column;
}
.back{margin:18px 24px 0; color:var(--muted); text-decoration:none; font-size:14px}
.back:hover{color:var(--ink)}
.head{max-width:1100px; width:100%; margin:0 auto; padding:8px 24px 0}
.eyebrow{letter-spacing:.14em; text-transform:uppercase; font-size:12px; color:var(--accent); margin:0 0 6px}
h1{margin:0; font-size:42px; letter-spacing:-.02em; line-height:1}
.lede{color:var(--muted); max-width:62ch; line-height:1.5; margin:10px 0 0}
.layout{
  max-width:1100px; width:100%; margin:0 auto;
  display:grid; grid-template-columns:340px 1fr; gap:20px; padding:20px 24px 28px; flex:1;
}
.controls{
  background:color-mix(in srgb, var(--panel) 92%, transparent);
  border:1px solid var(--line); border-radius:16px; padding:16px;
  box-shadow:0 10px 30px rgba(0,0,0,.4); align-self:start; position:sticky; top:16px;
}
.stats{display:grid; grid-template-columns:repeat(3,1fr); gap:10px; margin-bottom:10px}
.stats div{border:1px solid var(--line); border-radius:12px; padding:10px; text-align:center}
.stats span{font-size:11px; letter-spacing:.12em; text-transform:uppercase; color:var(--muted); display:block}
.stats strong{font-size:18px}
.status{font-size:14px; color:var(--accent2); min-height:22px; margin:6px 0 10px}
.btns{display:flex; gap:10px; flex-wrap:wrap; margin-bottom:14px}
button{
  border:1px solid var(--line); background:#22281e; color:var(--ink);
  padding:9px 12px; border-radius:10px; font:600 14px/1 system-ui; cursor:pointer;
}
button:hover{border-color:#3a4435}
button:focus-visible{outline:2px solid var(--accent); outline-offset:2px}
button.primary{background:var(--accent); color:#1a2008; border-color:transparent}
button.ghost{background:transparent}
.range{display:grid; grid-template-columns:80px 1fr; gap:10px; align-items:center; font-size:13px; color:var(--muted); margin:8px 0}
.range input{accent-color:var(--accent)}
.hint{font-size:13px; color:var(--muted); line-height:1.5; margin:6px 0 0}
.hint kbd{border:1px solid var(--line); border-bottom-width:2px; background:#1e241b; padding:1px 6px; border-radius:6px; font-size:12px; color:var(--ink)}
.dim{opacity:.8}
.stage{
  background:var(--panel); border:1px solid var(--line); border-radius:16px; padding:10px;
  box-shadow:0 10px 30px rgba(0,0,0,.4); display:grid; place-items:center;
}
#soil{width:100%; height:auto; max-width:860px; aspect-ratio:860/560; display:block; border-radius:12px; border:1px solid var(--line); background:#0e110d; cursor:crosshair}
.foot{
  display:flex; justify-content:space-between; gap:12px;
  padding:14px 24px 20px; color:var(--muted); font-size:13px;
  border-top:1px solid var(--line); max-width:1100px; width:100%; margin:0 auto;
}
.foot a{color:var(--muted); text-decoration:none}
.foot a:hover{color:var(--ink)}
@media(max-width:900px){ .layout{grid-template-columns:1fr} .controls{position:static} h1{font-size:34px} }
@media(prefers-reduced-motion:reduce){*{animation:none !important; transition:none !important}}