.infiltration-layout{display:grid;grid-template-columns:minmax(0,1.25fr) minmax(300px,.75fr);gap:32px;align-items:start}.infiltration-form,.infiltration-results,.print-sheet{background:#fff;border:1px solid var(--line);border-radius:18px;padding:30px;box-shadow:0 8px 24px rgba(21,55,44,.04)}.infiltration-results{position:sticky;top:24px}.test-fieldset{margin:0;padding:0;border:0}.test-fieldset legend{display:flex;flex-direction:column;gap:6px;margin-bottom:14px}.test-fieldset legend strong{font-size:1.35rem}.unit-fieldset,.test-step{margin-top:36px}.choice-grid{display:grid;gap:12px}.three-choice{grid-template-columns:repeat(3,minmax(0,1fr))}.two-choice{grid-template-columns:repeat(2,minmax(0,1fr))}.choice-grid label{display:flex;align-items:center;gap:10px;min-height:72px;padding:12px;border:1px solid #899a91;border-radius:12px;cursor:pointer}.choice-grid label:has(input:checked){border:3px solid var(--accent);padding:10px;background:var(--soft)}.choice-grid input{width:22px;height:22px;flex:0 0 auto;accent-color:var(--accent)}.choice-grid span{font-weight:850}.choice-grid small{display:block;margin-top:2px;color:var(--muted);font-weight:600}.method-summary{margin-top:34px;padding:22px;border:1px solid var(--line);border-radius:14px;background:var(--soft)}.method-summary h2{font-size:1.65rem}.method-summary dl{margin:0}.method-summary dl>div{display:grid;grid-template-columns:125px 1fr;gap:12px;padding:9px 0;border-bottom:1px solid var(--line)}.method-summary dt{color:var(--muted);font-weight:750}.method-summary dd{margin:0;font-weight:800}.custom-grid,.context-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin-top:20px}.test-label{display:block}.test-label>span:first-child{display:block;margin:0 0 8px;font-weight:850}.test-label input,.test-label select,.test-label textarea{width:100%;min-height:52px;padding:11px 13px;border:1px solid #899a91;border-radius:9px;background:#fff;color:var(--ink);font:inherit}.test-label textarea{resize:vertical}.test-label input:focus,.test-label select:focus,.test-label textarea:focus,.choice-grid input:focus-visible{outline:3px solid var(--gold);outline-offset:2px}.test-label small{display:block;margin-top:7px;color:var(--muted)}.input-with-unit{display:grid!important;grid-template-columns:minmax(0,1fr) auto;align-items:center;border:1px solid #899a91;border-radius:9px;overflow:hidden}.input-with-unit input{border:0!important;border-radius:0}.input-with-unit>span{padding:0 13px;color:var(--muted);font-weight:800}.protocol{padding-left:22px}.protocol li{margin:10px 0}.timer-panel,.manual-panel{margin-top:18px;padding:22px;border:1px solid var(--line);border-radius:14px;background:var(--soft)}.timer{margin:.25em 0;font-variant-numeric:tabular-nums;font-size:clamp(2.2rem,8vw,4rem);font-weight:900;line-height:1}.timer-actions,.test-actions,.print-toolbar>div:last-child{display:flex;gap:12px;flex-wrap:wrap;margin-top:18px}.timer-actions button,.test-actions button,.print-toolbar button,.save-card button{border:0;font:inherit;cursor:pointer}.stop-button{background:#7a2d24}.button:disabled{background:#9aa8a1;cursor:not-allowed}.trial-heading,.print-toolbar{display:flex;align-items:end;justify-content:space-between;gap:18px;margin-top:34px}.text-button{min-height:48px;border:0;background:transparent;color:var(--accent-dark);font:inherit;font-weight:850;text-decoration:underline;text-underline-offset:4px;cursor:pointer}.text-button:disabled{color:#7a8981;cursor:not-allowed}.trial-table{width:100%;border-collapse:collapse}.trial-table th,.trial-table td{padding:11px;border-bottom:1px solid var(--line);text-align:left}.trial-table th{background:var(--soft);font-size:.82rem}.form-message{min-height:1.5em;color:#7a2d24;font-weight:750}.context-details{margin-top:26px;border:1px solid var(--line);border-radius:12px;padding:16px}.context-details summary{font-weight:850;cursor:pointer}.wide{grid-column:1/-1}.primary-result{margin:16px 0;padding:20px;border-radius:14px;background:var(--soft)}.primary-result span,.primary-result small{display:block;color:var(--muted)}.primary-result strong{display:block;margin:4px 0;font-size:clamp(2rem,6vw,3.25rem);line-height:1.05}.result-list{display:grid;gap:0;margin:0 0 22px}.result-list>div{display:grid;grid-template-columns:1fr 1.2fr;gap:10px;padding:12px 0;border-bottom:1px solid var(--line)}.result-list dt{color:var(--muted);font-weight:750}.result-list dd{margin:0;font-weight:800}.comparison-note{font-weight:700}.save-card{margin-top:22px;padding-top:22px;border-top:2px solid var(--line)}.method-grid,.sources-grid{display:grid;grid-template-columns:1fr 1fr;gap:28px}.example-card,.source-card{padding:24px;border:1px solid var(--line);border-radius:16px;background:#fff}.print-section[hidden]{display:none}.print-sheet{margin-top:20px}.print-sheet h3{margin-top:0}.print-sheet table{width:100%;border-collapse:collapse}.print-sheet th,.print-sheet td{padding:9px;border:1px solid var(--line);text-align:left}.record-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}.record-grid>div{padding:10px;background:var(--soft)}
@media(max-width:850px){.infiltration-layout,.method-grid,.sources-grid{grid-template-columns:1fr}.infiltration-results{position:static}.three-choice{grid-template-columns:1fr}.print-toolbar{align-items:flex-start}}
@media(max-width:620px){.infiltration-form,.infiltration-results,.print-sheet{padding:20px}.two-choice,.custom-grid,.context-grid,.record-grid{grid-template-columns:1fr}.wide{grid-column:auto}.method-summary dl>div,.result-list>div{grid-template-columns:1fr}.trial-heading,.print-toolbar{align-items:flex-start;flex-direction:column}.table-scroll{overflow-x:auto}.trial-table{min-width:470px}}
@media print{header,.hero,.infiltration-layout,#method,.sources-grid,footer,.print-toolbar,.skip-link{display:none!important}.print-section{display:block!important}.section{padding:0}.print-sheet{border:0;box-shadow:none;padding:0}.print-sheet a{color:inherit;text-decoration:none}}