.back{display:inline-block;margin-bottom:24px;color:var(--green);font-size:.85rem;text-decoration:none}.app-grid{grid-template-columns:minmax(0,1fr) minmax(0,1fr)}.mode-label{display:block;margin-bottom:16px}.property-row{margin-top:16px}label>span{font-size:.85rem}.helper{font-size:.8rem}input,select{height:44px}.unit-input span,.unit-input select{height:44px}.unit-input select{width:auto;max-width:90px}.unit-input span{font-size:.73rem}input.calculated{background:#e1efe8;border-color:#79aa93;color:#125337}small{font-size:.68rem;color:var(--green);font-weight:700}#status{font-size:.88rem;line-height:1.6;margin-bottom:18px}#status.error{color:#9d361e;border-left:3px solid #c46136;padding-left:12px}.summary-dimension{font-size:clamp(2rem,4vw,3.8rem);overflow-wrap:anywhere}.pipe-details{grid-template-columns:repeat(3,minmax(0,1fr))}.pipe-details dt{font-size:.7rem}.pipe-details dd{overflow-wrap:anywhere}.result-context{font-size:.82rem}.explanation{margin-top:28px;line-height:1.65;font-size:.9rem;color:var(--muted)}h3{color:var(--ink);font-size:1rem}.formula{font-family:Sora,system-ui,sans-serif;color:var(--ink);padding:16px;background:var(--soft)}details{margin-top:24px;border-top:1px solid var(--line);padding-top:16px;font-size:.83rem;line-height:1.6;color:var(--muted)}summary{cursor:pointer;font-weight:700;color:var(--ink)}a{color:var(--green)}button{padding:10px 14px;border:1px solid var(--line);background:#fff;color:var(--ink);font:600 .85rem Manrope,system-ui,sans-serif;cursor:pointer}button:hover{background:var(--soft)}button:focus-visible,summary:focus-visible{outline:2px solid var(--green);outline-offset:3px}[hidden]{display:none!important}@media(max-width:950px){.app-grid{grid-template-columns:1fr}}@media(max-width:480px){.pipe-details{grid-template-columns:1fr}.result-chips{flex-wrap:wrap}}

.solve-options{display:flex;flex-wrap:wrap;gap:8px}.solve-options label{display:flex;align-items:center;gap:7px;border:1px solid var(--line);padding:10px 12px;cursor:pointer}.solve-options input{width:16px;height:16px;margin:0;accent-color:var(--green)}.solve-options label>span{margin:0}.solve-options label:has(input:checked){background:var(--palegreen);border-color:var(--green)}.solve-options label:focus-within{outline:2px solid var(--green);outline-offset:2px}