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64px}.battery-calculator{gap:var(--tool-gap);grid-template-columns:minmax(0,1.2fr) minmax(0,1fr);align-items:start;display:grid}.tool-panel{border:1px solid var(--color-line);border-radius:var(--radius-lg);background:var(--color-white);padding:28px}.tools-page h2{color:var(--color-ink);margin:0 0 16px;font-size:28px;font-weight:500;line-height:1.25}.tools-page h3{color:var(--color-ink);margin:0 0 12px;font-size:19px;font-weight:500;line-height:1.4}.tool-intro{margin:0 0 28px}.tool-inputs fieldset{border:0;min-width:0;margin:0 0 28px;padding:0}.tool-inputs legend{color:var(--color-ink);margin-bottom:16px;padding:0;font-size:17px;font-weight:600}.tool-field-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:20px 16px;display:grid}.tool-field label{color:var(--color-ink);margin:0 0 8px;font-size:15px;font-weight:500;display:block}.tool-field input,.tool-field select{border:1px solid var(--color-line);border-radius:var(--radius-sm);background:var(--color-white);width:100%;height:48px;color:var(--color-ink);font:inherit;padding:10px 12px;font-size:16px}.tool-field select{appearance:none;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='18' height='18' viewBox='0 0 24 24' fill='none' stroke='%23405b61' stroke-width='1.8' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='m7 9 5 5 5-5'/%3E%3C/svg%3E");background-position:right 14px center;background-repeat:no-repeat;background-size:18px 18px;padding-right:46px}.tool-field [aria-invalid=true]{border-color:#ab3434}.tool-field small,.tool-error{margin-top:8px;font-size:13px;line-height:1.5;display:block}.tool-error{color:#ab3434}.battery-calculator [hidden]{display:none!important}.tool-help{margin:0 0 20px;font-size:14px;line-height:1.6}.tool-actions{flex-wrap:wrap;gap:12px;display:flex}.tool-button{cursor:pointer;border:1px solid var(--color-brand);border-radius:var(--radius-sm);min-height:48px;font:inherit;background:var(--color-brand);color:var(--color-white);padding:12px 20px;font-size:15px;font-weight:500}.tool-button:hover{background:var(--color-brand-dark);border-color:var(--color-brand-dark)}.tool-button-secondary{background:var(--color-white);color:var(--color-brand-dark);border-color:var(--color-line)}.tool-button-secondary:hover{background:var(--color-brand-soft);border-color:var(--color-line)}.tool-button:disabled{cursor:default;opacity:.45}.tool-results{background:var(--color-surface)}.tool-results [data-result-status]{margin:0 0 24px;font-size:14px}.tool-primary-result{background:var(--color-brand-soft);border-radius:var(--radius-md);padding:24px}.tool-primary-result p{color:var(--color-brand-dark);margin:12px 0;font-size:clamp(26px,3vw,36px);font-weight:500;line-height:1.3}.tool-primary-result p>span:last-child{font-size:17px}.tool-primary-result small,.tool-capacity-result small{font-size:13px;line-height:1.5;display:block}.tool-result-details{margin:24px 0}.tool-result-details>div{border-bottom:1px solid var(--color-line);padding:14px 0}.tool-result-details dt{font-size:14px}.tool-result-details dd{color:var(--color-ink);margin:4px 0 0;font-size:19px;font-weight:500}.tool-capacity-result p{color:var(--color-brand-dark);margin:12px 0;font-size:25px;font-weight:500;line-height:1.3}.tool-result-note{margin:24px 0;font-size:14px;line-height:1.6}.tool-privacy{margin:20px 0 0;font-size:13px;line-height:1.5}.tool-reading{border-bottom:1px solid var(--color-line);max-width:960px;padding-block:40px}.tool-reading p{margin:0 0 20px;line-height:1.8}.tool-reading p:last-child{margin-bottom:0}.tool-reading-grid{grid-template-columns:1fr 1fr;gap:32px;margin:24px 0;display:grid}.tool-formula{background:var(--color-surface);border-radius:var(--radius-sm);overflow-wrap:anywhere;padding:16px;font-size:15px}.tool-reading details{border-top:1px solid var(--color-line);padding:18px 0}.tool-reading summary{color:var(--color-ink);cursor:pointer;font-size:17px;font-weight:500}.tool-reading details p{margin:16px 0 0}.tool-sources li{margin-bottom:12px}.tool-related{max-width:760px;padding-top:40px}.tool-related p{margin:0 0 20px}.tool-related a{color:var(--color-brand-dark);text-underline-offset:4px;align-items:center;gap:12px;font-weight:500;text-decoration:underline;display:inline-flex}@media (width<=900px){.battery-calculator{grid-template-columns:1fr}.tool-results{position:static}}@media (width<=600px){.tool-hero{padding-bottom:32px}.tool-breadcrumb{margin-bottom:24px}.tool-body{padding-block:24px 48px}.tool-panel{padding:20px}.tool-field-grid,.tool-reading-grid{grid-template-columns:1fr}.tool-reading-grid{gap:24px}.tools-page h2{font-size:25px}.tool-actions .tool-button{flex:auto}.tool-benefits{gap:8px 20px}.tool-reading{padding-block:32px}}@media print{.pophaw-header,.ph-header-space,.ph-drawer,.pophaw-footer,#pophaw-cart,.pophaw-back-to-top,.tool-actions,.tool-related,.tool-benefits{display:none}.tools-page .shell{width:100%}.battery-calculator{display:block}.tool-panel{border:0;padding:12px 0}.tool-hero{background:0 0;padding:12px 0}.tool-breadcrumb{display:none}.tool-reading{padding:16px 0}.tool-field-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.tool-results{break-inside:avoid}.tool-reading details:not([open]){display:none}}