:root{
	--pg-bg:#;
	--pg-card:#ffffff;
	--pg-text:#999;
	--pg-muted:#222;
	--pg-line:#eee;
	--pg-pri:#666;
	--pg-pri-weak:#eee;
	--pg-radius:10px;
	--pg-gap:18px;
}

.pg-wrap{max-width:1100px;margin:0 auto;padding:28px 16px;background:var(--pg-bg);}
.pg-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:var(--pg-gap);}
@media (max-width:900px){.pg-grid{grid-template-columns:1fr}}
.pg-card{background:var(--pg-card);border:1px solid var(--pg-line);border-radius:var(--pg-radius);padding:18px 16px}
.pg-title{font-weight:700;margin:0 0 6px;color:var(--pg-text);font-size:1.05rem}
.pg-help{margin:0 0 10px;color:var(--pg-muted);font-size:.92rem}
details{margin-top:6px}
summary{cursor:pointer;user-select:none;color:var(--pg-pri);font-weight:600}
.pg-field{display:flex;align-items:center;gap:10px}
label{min-width:10px;color:var(--pg-muted);font-size:.9rem}
select, input[type="number"], input[type="text"]{
      width:100%;padding:10px 12px;border:1px solid var(--pg-line);border-radius:10px;background:#fff;
      font-size:1rem;color:var(--pg-text);outline:none;transition:border-color .15s, box-shadow .15s;
    }
select:focus, input:focus{border-color:var(--pg-pri);box-shadow:0 0 0 3px var(--pg-pri-weak)}
.button{
	display:inline-block;background:var(--pg-pri);color:#fff;border:none;border-radius:999px;
	padding:12px 16px;font-weight:700;cursor:pointer;transition:opacity .15s
}
.button:hover{opacity:.92}
.pg-actions{margin:8px 0 18px}
.pg-results{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:var(--pg-gap)}
@media (max-width:700px){.pg-results{grid-template-columns:1fr}}
.pg-kpi{background:#fff;border:1px solid var(--pg-line);border-radius:var(--pg-radius);padding:10px;text-align:center}
.pg-kpi b{display:block;margin-bottom:6px}
.pg-hr{border:none;border-top:1px solid var(--pg-line);margin:22px 0}
.post-tag{display:inline-block;background:var(--pg-pri-weak);color:var(--pg-pri);padding:6px 10px;border-radius:999px;font-weight:700}
.resu{text-align:center}
.optcalc{font-size:.96rem;line-height:1.45}