.kbs-tool { background:var(--soft); border:1px solid var(--line); padding:18px; border-radius:12px; margin-top:20px; }
.kbs-tool h2 { margin-top:0; }
.kbs-grid { display:grid; grid-template-columns:repeat(2,minmax(0,1fr)); gap:16px; margin-bottom:12px; }
.kbs-tool fieldset { margin:16px 0; border:1px solid var(--line); border-radius:8px; padding:12px; }
.kbs-row { display:grid; grid-template-columns:minmax(0,2fr) minmax(0,1fr) auto; gap:8px; align-items:end; margin-bottom:16px; }
.kbs-row label { min-width:0; }
.kbs-actions { display:flex; gap:12px; flex-wrap:wrap; margin-top:18px; }
#kbs-error { color:#9c2020; font-weight:600; }
.kbs-totals { display:grid; grid-template-columns:minmax(0,1fr) auto; gap:10px; background:white; padding:14px; border-radius:8px; }
.kbs-totals dd { margin:0; font-weight:700; }
#kbs-summary { font-weight:700; }
@media(max-width:600px) { .kbs-grid,.kbs-row { grid-template-columns:minmax(0,1fr); } .kbs-row { border-bottom:1px solid var(--line); padding-bottom:14px; } .kbs-row button { justify-self:start; } .kbs-totals { grid-template-columns:minmax(0,1fr); } }