/* Planning Layer: additive, isolated styles. Existing calculator design is untouched. */
.dfu-planning{margin:42px auto 0;max-width:1180px;padding:0 16px 48px;font-family:inherit;color:inherit}
.dfu-plan-head{padding:28px 0 18px}
.dfu-plan-kicker{display:inline-block;font-size:.72rem;letter-spacing:.12em;font-weight:800;opacity:.68}
.dfu-plan-head h2{margin:6px 0 8px;font-size:clamp(1.6rem,3vw,2.25rem)}
.dfu-plan-head p{margin:0;max-width:760px;opacity:.78;line-height:1.65}
.dfu-plan-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}
.dfu-plan-card{border:1px solid rgba(127,127,127,.2);border-radius:16px;padding:20px;background:rgba(127,127,127,.045);box-sizing:border-box}
.dfu-plan-card h3{margin:0 0 10px;font-size:1.08rem}
.dfu-plan-card h4{margin:13px 0 5px;font-size:.95rem}
.dfu-plan-card p,.dfu-plan-card li{line-height:1.65}
.dfu-plan-card ul,.dfu-plan-card ol{padding-left:20px;margin:10px 0}
.dfu-plan-card details{margin-top:12px}
.dfu-plan-card summary{cursor:pointer;font-weight:700}
.dfu-plan-buttons,.dfu-history-actions{display:flex;flex-wrap:wrap;gap:8px}
.dfu-plan-buttons button,.dfu-history-actions button{border:0;border-radius:9px;padding:9px 12px;cursor:pointer;font:inherit;font-size:.88rem;background:currentColor;color:#fff}
.dfu-plan-buttons button{background:#222;color:#fff}
.dfu-plan-buttons button:hover,.dfu-history-actions button:hover{opacity:.86}
.dfu-plan-status{min-height:1.4em;margin:10px 0 0!important;font-size:.86rem}
.dfu-alt-list{display:flex;flex-wrap:wrap;gap:8px;margin:10px 0 12px}
.dfu-alt-list span{border:1px solid rgba(127,127,127,.22);border-radius:999px;padding:6px 9px;font-size:.82rem}
.dfu-timeline{display:grid;grid-template-columns:auto 1fr auto 1fr auto;align-items:center;gap:8px;margin:20px 0}
.dfu-timeline i{height:2px;background:currentColor;opacity:.3}
.dfu-plan-data{margin-top:16px}
.dfu-plan-data pre{white-space:pre-wrap;overflow:auto;padding:14px;border-radius:10px;background:rgba(0,0,0,.06);font-size:.78rem}
.dfu-history-actions{margin:10px 0}
[data-dfu-history-list] .dfu-history-row{padding:8px 0;border-top:1px solid rgba(127,127,127,.16);font-size:.84rem}
@media(max-width:720px){
 .dfu-plan-grid{grid-template-columns:1fr}
 .dfu-planning{padding-left:10px;padding-right:10px}
 .dfu-plan-buttons button{flex:1 1 calc(50% - 8px)}
 .dfu-timeline{font-size:.78rem}
}
@media print{
 .dfu-plan-buttons,.dfu-history-actions,.dfu-plan-status{display:none!important}
 .dfu-planning{max-width:none}
 .dfu-plan-card{break-inside:avoid;background:#fff}
}
.dfu-print-sheet{display:none}
@media print{
 body.dfu-printing>*{display:none!important}
 body.dfu-printing .dfu-print-sheet{display:block!important;margin:0;padding:48px 55px;font-family:Arial,sans-serif;color:#111;background:#fff;box-sizing:border-box}
 body.dfu-printing .dfu-print-sheet h1{font-size:30px;margin:10px 0 20px}
 .dfu-print-brand{font-size:14px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;opacity:.65;border-bottom:2px solid #111;padding-bottom:12px}
 .dfu-print-result{font-size:42px;margin:22px 0 8px}.dfu-print-result span{font-size:22px;font-weight:400}.dfu-print-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:15px;margin:30px 0}.dfu-print-stats div{border:1px solid #ddd;padding:13px}.dfu-print-stats b,.dfu-print-stats span{display:block}.dfu-print-stats span{margin-top:4px;font-size:12px;color:#555}.dfu-print-meta{font-size:12px;color:#555;margin:20px 0;line-height:1.6}
}