.tool-wrap{max-width:1080px}.tool-hero{position:relative;overflow:hidden;margin-bottom:20px;padding:30px;border:1px solid var(--color-border);border-radius:16px;background:radial-gradient(520px 220px at 92% 0%,var(--color-accent-soft),transparent 72%),var(--color-surface)}.tool-hero:after{position:absolute;bottom:0;left:0;width:130px;height:4px;content:"";background:var(--color-accent)}.kicker,.section-label{margin:0 0 8px;color:var(--color-accent);font-size:.78rem;font-weight:800;letter-spacing:.1em;text-transform:uppercase}.tool-hero h1{max-width:860px;margin:0;font-size:clamp(2rem,5vw,3.4rem);line-height:1.08}.tool-hero>p:last-child{max-width:800px;margin:12px 0 0;color:var(--color-text-muted);font-size:1.05rem}.calculator-grid{display:grid;grid-template-columns:minmax(0,1.12fr) minmax(330px,.88fr);gap:20px;align-items:start}.panel,.info-panel,.safety-panel{padding:22px;border:1px solid var(--color-border);border-radius:var(--radius);background:var(--color-surface)}.panel-heading{display:flex;gap:12px;align-items:baseline;margin-bottom:12px}.panel-heading h2{margin:0;font-size:1.2rem}.settings-heading{margin-top:28px}.step{color:var(--color-accent);font-size:.78rem;font-weight:800;letter-spacing:.08em}.panel-intro,.input-help{color:var(--color-text-muted);font-size:.82rem}.panel-intro{margin:0 0 14px}.input-help{margin:9px 0 0}.load-table-wrap{overflow-x:auto;border:1px solid var(--color-border);border-radius:var(--radius-sm)}.load-table{width:100%;min-width:580px;border-collapse:collapse;table-layout:fixed}.load-table th{padding:8px 6px;color:var(--color-text-muted);background:var(--color-bg-soft);border-bottom:1px solid var(--color-border);text-align:left;font-size:.72rem}.load-table th:first-child{width:31%}.load-table th:nth-child(2){width:68px}.load-table th:nth-child(3),.load-table th:nth-child(4){width:110px}.load-table th:last-child{width:38px}.load-table th small{display:block;font-size:.65rem;font-weight:500}.load-table td{padding:5px;border-bottom:1px solid var(--color-border)}.load-table tr:last-child td{border-bottom:0}.load-table input,.field input{width:100%;min-width:0;min-height:42px;padding:8px 9px;color:var(--color-text);background:var(--color-bg);border:1px solid var(--color-border);border-radius:var(--radius-sm);font:inherit;font-size:16px}.load-table input:focus,.field input:focus{outline:2px solid var(--color-accent);outline-offset:1px;border-color:var(--color-accent)}input[type=number]{appearance:textfield}input[type=number]::-webkit-outer-spin-button,input[type=number]::-webkit-inner-spin-button{margin:0;appearance:none}.mobile-label{display:none}.remove-cell{text-align:center}.remove-load{width:30px;height:30px;padding:0;color:var(--color-accent);background:transparent;border:0;border-radius:50%;cursor:pointer;font-size:1.25rem;font-weight:800}.remove-load:hover,.remove-load:focus-visible{background:var(--color-accent-soft);outline:2px solid var(--color-accent)}.add-load{margin-top:10px;padding:8px 12px;color:var(--color-accent);background:var(--color-accent-soft);border:1px solid var(--color-accent);border-radius:var(--radius-sm);cursor:pointer;font:inherit;font-weight:800}.add-load:focus-visible{outline:2px solid var(--color-accent);outline-offset:2px}fieldset{margin:0 0 20px;padding:0;border:0}fieldset:last-of-type{margin-bottom:0}legend{width:100%;margin-bottom:12px;padding-bottom:7px;border-bottom:1px solid var(--color-border);font-size:.88rem;font-weight:800}.field-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}.field label{display:block;margin-bottom:5px;color:var(--color-text-muted);font-size:.8rem;font-weight:700}.field small{display:block;margin-top:5px;color:var(--color-text-muted);font-size:.72rem;line-height:1.35}.input-unit{display:grid;grid-template-columns:1fr auto;align-items:stretch}.input-unit input{border-radius:var(--radius-sm) 0 0 var(--radius-sm)}.input-unit span{display:grid;min-width:45px;place-items:center;padding:0 9px;color:var(--color-text-muted);background:var(--color-bg-soft);border:1px solid var(--color-border);border-left:0;border-radius:0 var(--radius-sm) var(--radius-sm) 0;font-size:.76rem;font-weight:800}.input-notice{min-height:1.4em;margin:12px 0 0;color:#a23d13;font-size:.82rem;font-weight:700}.result-panel{position:sticky;top:18px}.primary-result{padding:18px;color:var(--color-off);background:linear-gradient(145deg,var(--color-slate-deep),var(--color-slate));border-radius:var(--radius)}.primary-result>span,.result-card>span{display:block;font-size:.72rem;font-weight:800;letter-spacing:.03em;text-transform:uppercase}.primary-result>span,.primary-result small{color:#c8d4da}.primary-result strong{display:block;margin:4px 0;color:var(--color-off);font-size:clamp(2rem,5vw,3rem);font-variant-numeric:tabular-nums}.result-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px;margin-top:10px}.result-card{min-width:0;padding:13px;background:var(--color-bg);border:1px solid var(--color-border);border-radius:var(--radius-sm)}.result-card>span{color:var(--color-text-muted)}.result-card strong{display:block;margin-top:5px;color:var(--color-accent);font-size:1.15rem;overflow-wrap:anywhere;font-variant-numeric:tabular-nums}.honesty-note{margin-top:12px;padding:13px;background:var(--color-accent-soft);border-left:4px solid var(--color-accent);border-radius:var(--radius-sm)}.honesty-note p{margin:4px 0 0;color:var(--color-text-muted);font-size:.82rem}.info-panel,.safety-panel{margin-top:20px}.info-panel h2,.safety-panel h2{margin:0 0 10px}.formula-panel{display:grid;grid-template-columns:.78fr 1.22fr;gap:28px}.formula-panel>div p:last-child,.info-panel>p,.source-note,.safety-panel p{color:var(--color-text-muted)}.formula-list,.source-list{display:grid;gap:9px;margin:0;padding-left:22px}.formula-list code,.worked-grid code{display:block;padding:6px 8px;overflow-wrap:anywhere;color:var(--color-text);background:var(--color-bg-soft);border:1px solid var(--color-border);border-radius:5px;font-size:.8rem}.formula-caption{grid-column:1 / -1;margin:0;padding-top:14px;border-top:1px dashed var(--color-border);font-size:.84rem}.worked-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:9px}.worked-grid p{margin:0;padding:11px;background:var(--color-bg);border-radius:var(--radius-sm);font-size:.84rem}.worked-grid code{margin-bottom:5px}.source-list li{margin-bottom:2px}.source-list a{font-weight:800;text-decoration:underline;text-underline-offset:2px}.source-note{margin-bottom:0;padding-top:13px;border-top:1px dashed var(--color-border);font-size:.84rem}.safety-panel{color:var(--color-off);background:var(--color-slate);border-color:var(--color-slate)}.safety-panel h2{color:var(--color-off)}.safety-panel p{margin-bottom:0;color:#c8d4da}.related-panel>div{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:10px}.related-panel a{display:flex;justify-content:space-between;gap:14px;padding:14px;color:var(--color-text);background:var(--color-bg);border:1px solid var(--color-border);border-radius:var(--radius-sm);font-weight:800}.related-panel a:hover,.related-panel a:focus-visible{color:var(--color-accent);border-color:var(--color-accent)}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}@media(max-width:820px){.calculator-grid,.formula-panel{grid-template-columns:1fr}.result-panel{position:static}.related-panel>div{grid-template-columns:1fr}}@media(max-width:620px){.tool-hero{padding:23px 20px}.panel,.info-panel,.safety-panel{padding:17px}.field-grid,.result-grid,.worked-grid{grid-template-columns:1fr}.load-table-wrap{overflow:visible;border:0}.load-table,.load-table tbody{display:block;min-width:0}.load-table thead{display:none}.load-table tr{display:grid;grid-template-columns:1fr 1fr;gap:9px;margin-bottom:10px;padding:12px;background:var(--color-bg);border:1px solid var(--color-border);border-radius:var(--radius-sm)}.load-table td{display:block;padding:0;border:0}.load-table td:first-child{grid-column:1 / -1}.load-table .remove-cell{grid-column:1 / -1;text-align:right}.mobile-label{display:block;margin-bottom:3px;color:var(--color-text-muted);font-size:.72rem;font-weight:700}.primary-result strong{font-size:2.15rem}}@media(max-width:380px){.load-table tr{grid-template-columns:1fr}.load-table td:first-child,.load-table .remove-cell{grid-column:auto}}