[data-theme] .star.is-favourite svg{stroke:currentColor;stroke-width:1.75px}.chemical-formula sub{vertical-align:sub;font-size:.72em;line-height:0}.tool-row>svg:last-child{color:var(--link)}.refrigerant-picker,.picker-group{min-width:0}.picker-search-label,.restriction-search-label{margin:0 0 12px}.picker-search-row{margin-top:12px}.picker-search-row .picker-search-label{margin-bottom:8px;display:block}.picker-search-label+.search-field,.restriction-search-label+.search-field{margin-top:8px;font-weight:400}.picker-search-row .search-field{margin-top:0}.picker-clear-search{color:var(--text-secondary);flex:0 0 44px}.picker-result-count,.restriction-count{margin:0 0 8px}.picker-group h3{margin:20px 0 4px;font-size:.875rem;font-weight:700}.picker-result .refrigerant-link{text-align:left;min-width:0}.picker-result .refrigerant-link>span{overflow-wrap:anywhere;min-width:0}.picker-result .refrigerant-link strong{font-size:1.25rem}.picker-result .refrigerant-link>svg{color:var(--link)}.picker-result .refrigerant-link>.picker-selected-icon{color:var(--status-success-foreground)}.picker-result-favourite{flex:0 0 44px;justify-content:center;display:flex}.picker-more{margin-top:12px}.picker-results{overscroll-behavior:contain;max-height:20rem;overflow-y:auto}.picker-selection-summary{flex-wrap:wrap;align-items:center;gap:8px;min-width:0;display:flex}.picker-selected-copy{overflow-wrap:anywhere;flex-direction:column;flex:110px;min-width:0;display:flex}.picker-selected-copy strong{font-size:1.25rem}.picker-disclosure-button{max-width:100%;min-height:44px}.picker-clear-selection{flex:0 0 44px}.picker-selected-list{flex-wrap:wrap;gap:8px;margin-bottom:12px;display:flex}.picker-selected-chip{border:1px solid var(--control-border);background:var(--surface);align-items:center;gap:8px;max-width:100%;min-height:44px;padding:8px 12px;display:inline-flex}.picker-selected-chip span{overflow-wrap:anywhere}.source-disclosure{margin-top:10px}.source-disclosure>summary{min-height:44px;color:var(--text-secondary);align-items:center;gap:6px;padding:8px 0;font-size:.8125rem;font-weight:400;list-style:none;display:inline-flex}.source-disclosure>summary::-webkit-details-marker{display:none}.source-disclosure>summary::marker{content:""}.source-disclosure[open]>summary svg{transform:rotate(90deg)}.source-disclosure-content{padding:0 0 4px 22px}.source-disclosure-content p:last-child{margin-bottom:4px}.gwp-summary{text-align:right;flex-direction:column;align-items:flex-end;gap:2px;max-width:100%;display:inline-flex}.gwp-summary .caption{max-width:100%}.compare-table .gwp-summary{text-align:left;align-items:flex-start}.gwp-unavailable{max-width:22rem;display:block}.safety-help-copy p:last-child{margin-bottom:0}.safety-help-copy ul{margin:0 0 10px;padding-left:20px}.safety-help-copy li{margin:2px 0}.oil-heading{align-items:center;gap:4px;min-height:44px;display:flex}.oil-heading h3{margin:0}.oil-facts .fact-row{align-items:flex-start}.oil-facts .fact-row dd{max-width:68%}.oil-code-list{text-align:right;flex-direction:column;align-items:flex-end;gap:6px;display:flex}.oil-code{flex-wrap:wrap;justify-content:flex-end;gap:6px;display:inline-flex}.oil-notes{color:var(--text-secondary);overflow-wrap:anywhere;font-size:.9375rem;line-height:1.65}.restriction-coverage-note{margin-bottom:12px}.restriction-filters{flex-wrap:wrap;gap:8px;margin:0 0 16px;display:flex}.restriction-filter{border:1px solid var(--control-border);min-height:44px;color:var(--text);background:var(--background);padding:8px 12px;font-size:.875rem}.check-options .checkbox input[type=checkbox]{appearance:none;border:1.5px solid var(--control-border);background:var(--background);width:24px;height:24px;color:var(--accent-foreground);cursor:pointer;border-radius:5px;place-content:center;margin:0;transition:background-color .12s,border-color .12s;display:grid}.check-options .checkbox input[type=checkbox]:after{content:"";border:2px solid;border-width:0 2px 2px 0;width:6px;height:11px;transition:transform .12s;transform:rotate(45deg)scale(0)}.check-options .checkbox input[type=checkbox]:checked{border-color:var(--accent-background);background:var(--accent-background)}.check-options .checkbox input[type=checkbox]:checked:after{transform:rotate(45deg)scale(1)}.check-options .checkbox input[type=checkbox]:focus-visible{outline:3px solid var(--focus-ring);outline-offset:3px}.check-options .checkbox input[type=checkbox]:disabled{cursor:not-allowed;opacity:.55}.check-decisive-basis{border-top:1px solid;margin:12px 0;padding:14px 0 0}.check-decisive-family{color:inherit;overflow-wrap:anywhere;margin:0 0 6px;font-size:.9375rem;font-weight:700}.check-decisive-quantity{overflow-wrap:anywhere;margin:0 0 6px;font-size:1.125rem;font-weight:700}.check-decisive-basis .caption{margin:0}.restriction-filter[aria-pressed=true]{color:var(--primary-foreground);background:var(--primary-background)}.restriction-search-label{font-size:.8125rem}.restriction{padding:0}.restriction>summary{justify-content:space-between;align-items:center;gap:12px;min-height:72px;padding:12px 0;list-style:none;display:flex}.restriction>summary::-webkit-details-marker{display:none}.restriction>summary::marker{content:""}.restriction-summary-text{min-width:0;display:block}.restriction-meta{color:var(--text-secondary);margin-bottom:5px;font-size:.8125rem;font-weight:400;display:block}.restriction-date{color:var(--text-secondary);font-size:.8125rem;font-weight:400}.restriction-title{overflow-wrap:anywhere;font-size:.9375rem;display:block}.restriction-chevron{color:var(--link);transition:transform .15s}.restriction[open]>summary .restriction-chevron{transform:rotate(90deg)}.restriction-content{padding:0 0 16px}.restriction-content p{font-size:.875rem}.restriction-more{margin-top:12px}@media (width<=480px){.tabs{grid-template-columns:repeat(2,minmax(0,1fr));gap:4px 8px;display:grid}.tabs button{text-align:center;min-height:48px;padding:8px 4px}}@media (width<=360px){.picker-result .refrigerant-link strong{font-size:1.125rem}.restriction-filter{padding-left:8px;padding-right:8px;font-size:.8125rem}}@media (prefers-reduced-motion:reduce){.restriction-chevron{transition:none}}.ph-intro{max-width:65ch;margin:8px 0 24px}.ph-coverage{border-left:3px solid var(--divider);max-width:68ch;margin:18px 0 6px;padding:9px 14px}.ph-form{margin-top:24px}.ph-section-heading{flex-wrap:wrap;align-items:center;gap:4px;margin:30px 0 8px;display:flex}.ph-section-heading h2{margin:0}.ph-unit-row,.ph-input-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:12px 20px;max-width:680px;display:grid}.ph-temperature-grid{grid-template-columns:repeat(3,minmax(0,1fr))}.ph-unit-row label,.ph-input-grid label,.ph-atmosphere,.ph-temperature-unit{min-width:0;margin-bottom:14px}.ph-unit-row select,.ph-input-grid input,.ph-atmosphere input,.ph-temperature-unit select{border:1px solid var(--control-border);background:var(--background);width:100%;min-height:50px;color:var(--text);font:inherit;margin-top:8px;padding:10px 12px;font-weight:400;display:block}.ph-input-grid input,.ph-atmosphere input{font-family:var(--font-data);font-variant-numeric:tabular-nums}.ph-atmosphere{max-width:330px;display:block}.ph-field-note{max-width:66ch;margin:-7px 0 18px}.ph-temperature-unit{width:110px;margin-left:auto}.ph-submit{margin:18px 0 8px}.ph-result{margin:34px 0}.ph-diagram-section{margin:34px 0 24px}.ph-metrics{grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;max-width:680px;margin:18px 0 28px;display:grid}.ph-metrics>div{border:1px solid var(--divider);border-radius:10px;gap:8px;padding:16px;display:grid}.ph-metrics strong{font-variant-numeric:tabular-nums;font-size:clamp(1.25rem,4vw,1.75rem)}.ph-figure{margin:0}.ph-view-controls{flex-wrap:wrap;gap:8px;margin-bottom:12px;display:flex}.ph-view-controls [aria-pressed=true]{background:var(--text);color:var(--background);border-color:var(--text)}.ph-chart-scroll,.ph-table-scroll{max-width:100%;overflow-x:auto}.ph-chart{background:var(--surface);border:1px solid var(--divider);border-radius:10px;width:100%;min-width:560px;max-width:780px;height:auto;display:block}.ph-gridline{stroke:var(--divider);stroke-width:1px}.ph-gridline-minor{stroke-opacity:.4;stroke-width:.7px}.ph-pressure-guide{stroke:var(--text);stroke-opacity:.5;stroke-width:1px;stroke-dasharray:6 4}.ph-axis{fill:none;stroke:var(--text);stroke-width:1.4px}.ph-boundary{fill:none;stroke-width:2px;stroke-linecap:round;stroke-dasharray:6 4}.ph-bubble{stroke:#3c7890}.ph-dew{stroke:#a56a40}.ph-cycle-line{stroke:var(--text);stroke-width:2.5px}.ph-assumed-line{stroke-dasharray:3 4}.ph-point{fill:var(--background);stroke:var(--text);stroke-width:2.5px}.ph-point-label,.ph-axis-label,.ph-tick{fill:var(--text);font-family:var(--font-data)}.ph-point-label{paint-order:stroke;stroke:var(--surface);stroke-width:4px;font-size:17px;font-weight:800}.ph-axis-label{font-size:16px;font-weight:700}.ph-tick{font-size:16px}.ph-figure figcaption{max-width:68ch;margin-top:9px}.ph-scroll-hint{margin:8px 0 0}.ph-legend{flex-wrap:wrap;gap:8px 20px;margin:16px 0 28px;display:flex}.ph-legend span{align-items:center;gap:8px;display:inline-flex}.ph-legend span:before{border-top:3px solid var(--text);content:"";width:22px;display:inline-block}.ph-legend-bubble:before{border-color:#3c7890!important;border-top-style:dashed!important}.ph-legend-dew:before{border-color:#a56a40!important;border-top-style:dashed!important}.ph-point-table{border-collapse:collapse;text-align:left;width:min(100%,780px);min-width:550px}.ph-point-table caption{text-align:left;margin-bottom:10px;font-weight:700}.ph-point-table th,.ph-point-table td{border-bottom:1px solid var(--divider);vertical-align:top;font-variant-numeric:tabular-nums;padding:10px 12px}.ph-point-table th:first-child,.ph-point-table td:first-child{padding-left:0}.ph-point-table thead th{font-size:.82rem}.ph-result>.caption{max-width:68ch;margin:12px 0}@media (width<=620px){.ph-temperature-grid{grid-template-columns:minmax(0,1fr)}}@media (width<=420px){.ph-unit-row,.ph-input-grid,.ph-metrics{grid-template-columns:minmax(0,1fr)}}.ph-unit-row{flex-wrap:wrap;align-items:center;gap:12px 24px;display:flex}.ph-unit-row>label:first-child{align-items:center;gap:12px;display:flex}.ph-unit-row select{width:auto;min-height:44px;margin-top:0}.ph-pressure-switch{font-weight:400}.ph-temperature-grid label{flex-direction:column;justify-content:space-between;display:flex}.calculator-form{margin-top:2rem}.calculator-form>label{gap:.5rem;margin-block:1rem;display:grid}.calculator-form .form-grid{margin-block:1rem}.calculator-form .primary{margin-top:1rem}.calculator-result{margin-top:2rem}.calculator-number{overflow-wrap:anywhere;font-size:clamp(1.4rem,6vw,2rem)}.calculator-result .result-card{overflow-wrap:anywhere}.shsc-fields label{flex-direction:column;gap:8px;min-width:0;display:flex}.calculator-form .shsc-unit-settings{flex-wrap:wrap;gap:12px 24px;margin-block:20px;display:flex}.shsc-unit-settings label{align-items:center;gap:12px;margin:0;display:flex}.shsc-unit-settings select{width:auto;min-width:80px;height:2.75rem;min-height:44px;margin:0}.shsc-fields input{width:100%;margin-top:auto}.shsc-temperatures{grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;display:grid}.calculator-result .result-card+.result-card{margin-top:16px}@media (width<=620px){.shsc-temperatures{grid-template-columns:minmax(0,1fr)}}.pt-instruction{margin:24px 0 16px}.pt-pair{grid-template-columns:minmax(0,1fr) 20px minmax(0,1fr);align-items:center;gap:10px;display:grid}.pt-value-field{border-block-start:2px solid var(--divider);min-width:0;padding-top:12px}.pt-value-field.is-input{border-block-start-color:var(--text)}.pt-value-field>label{margin:0 0 8px}.pt-value-field>input{border:1px solid var(--control-border);background:var(--background);width:100%;min-height:64px;padding:10px;font-size:1.5rem;display:block}.pt-value-field>select{margin:8px 0}.pt-value-field>.caption{display:block}.pt-feedback{margin:12px 0 24px}.pt-atmosphere{margin-top:24px}.pt-atmosphere>label{margin-bottom:0}.pt-live-result{overflow-wrap:anywhere}@media (width<=350px){.pt-pair{grid-template-columns:minmax(0,1fr)}.pt-relation{display:none}}.pt-field-heading{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:2px;margin-bottom:8px;display:flex}.pt-field-heading>label{margin:0;font-size:.8125rem}.pt-field-heading>select{border-color:#0000;width:auto;max-width:100%;height:2.75rem;min-height:44px;margin:-6px 0;padding:6px 2px;font-size:.8125rem}.pt-value-field>.caption{margin-top:8px}.pt-gauge-reference{margin-top:6px;display:block}.pt-pair{grid-template-rows:auto auto auto}.pt-value-field{grid-template-rows:subgrid;grid-row:1/span 3;display:grid}.pt-value-field:first-child{grid-column:1}.pt-value-field:last-child{grid-column:3}.pt-relation{grid-area:2/2;place-self:center}.calculator-heading{margin-bottom:24px}.calculator-heading h1{min-width:0;margin:0}.conversion-title{align-items:center;gap:.3em;display:inline-flex}.conversion-title svg{width:.9em;height:.9em}.co2e-quantity{margin-top:20px}.co2e-quantity-heading{justify-content:space-between;align-items:center;gap:12px;display:flex}.co2e-quantity-heading label{margin:0}.quantity-unit-toggle{border:1px solid var(--control-border);border-radius:8px;display:flex;overflow:hidden}.quantity-unit-toggle button{background:0 0;border:0;border-radius:0;min-height:44px;padding:6px 14px}.quantity-unit-toggle button[aria-pressed=true]{background:var(--text);color:var(--background)}.co2e-quantity>input{border:1px solid var(--control-border);background:var(--background);width:100%;min-height:50px;margin-top:8px;padding:10px 12px}.field-unit{font-weight:400;display:block}.calculator-form .shsc-fields{gap:12px}.calculator-form .shsc-fields label{margin:0}.calculator-form .form-grid.shsc-fields{grid-template-columns:repeat(2,minmax(0,1fr));margin-block:24px}.shsc-fields input{margin:0}@media (width>=621px){.shsc-temperatures label{grid-template-rows:subgrid;grid-row:span 2;display:grid}}@media (width<=620px){.calculator-form .shsc-unit-settings{grid-template-columns:minmax(0,1fr);gap:8px;display:grid}.shsc-unit-settings label{justify-content:space-between}.shsc-unit-settings select{width:92px}.shsc-temperatures{gap:12px}.shsc-temperatures label{grid-template-columns:minmax(0,1fr) minmax(100px,42%);align-items:center;display:grid}.shsc-temperatures input{grid-area:1/2}}@media (width<=350px){.pt-pair{grid-template-rows:auto}.pt-value-field{grid-row:auto;grid-template-rows:auto auto auto}.pt-value-field:last-child{grid-column:1}}:root{--palette-ice-white:#fafeff;--palette-frost:#e2fcff;--palette-ice-blue:#cbf1fa;--palette-light-blue:#aedbf0;--palette-mid-blue:#6ba7cc;--palette-primary-blue:#3f7eb3;--palette-deep-blue:#102c40;--palette-night-blue:#091720;--palette-accent-lime:#c6e86b;--font-display:"Unbounded";--font-body:"Poppins";--font-data:"Ioskeley Mono";--page-gutter:24px;--section-gap:32px;--group-gap:16px;--label-gap:12px;--list-row-min-height:76px;--touch-target-min:44px;--search-radius:12px}[data-theme=light]{--background:#fafeff;--surface:#e2fcff;--surface-emphasis:#cbf1fa;--text:#102c40;--text-secondary:#495e6c;--link:#102c40;--divider:#aedbf0;--control-border:#3f7eb3;--focus-ring:#102c40;--primary-background:#102c40;--primary-foreground:#fafeff;--accent-background:#c6e86b;--accent-foreground:#102c40;--status-success-foreground:#3f652d;--status-success-background:#edf5e8;--status-warning-foreground:#795315;--status-warning-background:#fff4df;--status-error-foreground:#a33333;--status-error-background:#fcecec;--status-neutral-foreground:#495e6c;--status-neutral-background:#edf2f5;--status-info-foreground:#102c40;--status-info-background:#e2fcff}[data-theme=dark]{--background:#091720;--surface:#102c40;--surface-emphasis:#192a35;--text:#fafeff;--text-secondary:#b6c4ce;--link:#aedbf0;--divider:#495e6c;--control-border:#6ba7cc;--focus-ring:#aedbf0;--primary-background:#e2fcff;--primary-foreground:#102c40;--accent-background:#c6e86b;--accent-foreground:#102c40;--status-success-foreground:#add393;--status-success-background:#18291d;--status-warning-foreground:#e3b45b;--status-warning-background:#302719;--status-error-foreground:#f09191;--status-error-background:#331e25;--status-neutral-foreground:#b6c4ce;--status-neutral-background:#192a35;--status-info-foreground:#aedbf0;--status-info-background:#102c40}@font-face{font-family:Unbounded;src:url(/fonts/unbounded/Unbounded-Variable.ttf)format("truetype");font-weight:600 700;font-style:normal;font-display:swap}@font-face{font-family:Poppins;src:url(/fonts/poppins/Poppins-Regular.ttf)format("truetype");font-weight:400;font-style:normal;font-display:swap}@font-face{font-family:Poppins;src:url(/fonts/poppins/Poppins-Bold.ttf)format("truetype");font-weight:700;font-style:normal;font-display:swap}@font-face{font-family:Ioskeley Mono;src:url(/fonts/ioskeley-mono/IoskeleyMono-Regular.woff2)format("woff2");font-weight:400;font-style:normal;font-display:swap}@font-face{font-family:Ioskeley Mono;src:url(/fonts/ioskeley-mono/IoskeleyMono-SemiBold.woff2)format("woff2");font-weight:600;font-style:normal;font-display:swap}@font-face{font-family:Ioskeley Mono;src:url(/fonts/ioskeley-mono/IoskeleyMono-ExtraBold.woff2)format("woff2");font-weight:800;font-style:normal;font-display:swap}:root{font-family:var(--font-body), sans-serif;font-synthesis:none;--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light dark;background:var(--background,var(--palette-ice-white));color:var(--text,var(--palette-deep-blue));font-size:1rem;font-weight:400;line-height:1.5}@media (prefers-color-scheme:dark){:root{--lightningcss-light: ;--lightningcss-dark:initial}}*{box-sizing:border-box}body{margin:0}button,input,select,textarea{font:inherit;color:inherit}button,a,input,select,summary{touch-action:manipulation}button{cursor:pointer;font-weight:700}button:disabled{cursor:default;opacity:.55}button,select,input{border-radius:8px}button{background:0 0;border:0}a{color:var(--link);text-underline-offset:4px}p{margin:0 0 16px}h1{font:700 26px/1.3 var(--font-display), sans-serif;overflow-wrap:anywhere;margin:0 0 24px}h2{margin:0 0 16px;font-size:1.1875rem;font-weight:700;line-height:1.4}h3{margin:24px 0 12px;font-size:1rem}svg{stroke-width:1.75px;flex-shrink:0}strong{font-weight:700}.mono{font-family:var(--font-data), monospace;font-variant-numeric:tabular-nums;font-weight:400}.mono strong,strong.mono{font-weight:600}.secondary,.caption,.missing{color:var(--text-secondary)}.caption{font-size:.8125rem;line-height:1.65}.missing{font-family:var(--font-body);font-size:.875rem}.wrap{overflow-wrap:anywhere}.long-heading{font-family:var(--font-body);font-size:1.6875rem}.app-shell{max-width:760px;min-height:100dvh;padding:0 var(--page-gutter) 8rem;margin:auto}.brand-header{justify-content:space-between;align-items:center;padding:28px 0 32px;display:flex}.brand-header a{font-family:var(--font-display);color:var(--text);align-items:center;gap:12px;font-size:1.25rem;font-weight:600;text-decoration:none;display:inline-flex}.brand-header img{border-radius:8px}.offline-indicator{color:var(--text-secondary);align-items:center;gap:6px;font-size:.75rem;display:flex}main{outline:none}.section{margin:var(--section-gap) 0}.section-heading{justify-content:space-between;align-items:center;gap:16px;margin-bottom:12px;display:flex}.section-heading h2{margin:0}.text-button,.secondary-button,.primary{justify-content:center;align-items:center;gap:10px;min-height:44px;padding:10px 12px;font-size:.9375rem;text-decoration:none;display:inline-flex}.text-button{color:var(--link);padding-left:0;padding-right:0}.primary{background:var(--primary-background);color:var(--primary-foreground);min-height:52px;padding:14px 20px}.secondary-button{border:1px solid var(--control-border);color:var(--text);background:var(--background);border-radius:8px;padding:10px 16px}.icon-button{width:44px;min-width:44px;min-height:44px;color:var(--link);justify-content:center;align-items:center;display:inline-flex}.star.is-favourite{color:#e3b45b}[data-theme=light] .star.is-favourite svg{stroke:#795315;stroke-width:1.5px}.search-field{border:1px solid var(--control-border);border-radius:var(--search-radius);background:var(--surface);min-height:56px;color:var(--text-secondary);align-items:center;gap:12px;padding:0 12px 0 16px;display:flex}.search-field input{width:100%;min-width:0;height:54px;color:var(--text);background:0 0;border:0;outline:none;padding:8px 0;font-size:1rem}.search-field:focus-within{outline:2px solid var(--focus-ring);outline-offset:3px}.search-field input::placeholder{color:var(--text-secondary);opacity:1}.search-field input::-webkit-search-cancel-button{display:none}.refrigerant-row{min-height:var(--list-row-min-height);border-bottom:1px solid var(--divider);align-items:center;gap:8px;display:flex}.refrigerant-link{text-align:left;flex:1;justify-content:space-between;align-items:center;gap:8px;min-width:0;min-height:76px;padding:12px 0;display:flex}.refrigerant-link strong{letter-spacing:.015em;font-size:1.4375rem}.refrigerant-link .secondary{font-size:.875rem;font-weight:400;display:block}.refrigerant-link>svg{color:var(--link);margin-right:4px}.row-controls{align-items:center;display:flex}.row-controls>.icon-button{width:44px}.all-link{margin-top:20px}.empty{padding:24px 0}.empty p:first-child{margin-bottom:8px}.comparison-link{margin-top:40px}.filter-panel{margin-top:16px}.form-grid{grid-template-columns:1fr;gap:12px;padding-top:16px;display:grid}summary{cursor:pointer;min-height:44px;padding:12px 0;font-weight:700}summary svg{vertical-align:middle;margin-right:8px}details summary::marker{color:var(--link)}.filter-panel summary{font-size:.875rem}.back{margin-bottom:20px}.detail-heading{justify-content:space-between;align-items:center;gap:16px;display:flex}.detail-heading h1{letter-spacing:.01em;margin:0;font-size:2.25rem;font-weight:800}.chemical-name{color:var(--text-secondary);overflow-wrap:anywhere;margin:8px 0 32px}.tabs{border-bottom:1px solid var(--divider);justify-content:space-between;gap:12px;margin-bottom:28px;display:flex}.tabs button{border-radius:0;min-height:52px;padding:12px 0;font-size:.875rem;font-weight:400;position:relative}.tabs button[aria-selected=true]{font-weight:700}.tabs button[aria-selected=true]:after{content:"";background:var(--link);height:3px;position:absolute;bottom:-1px;left:0;right:0}.facts{margin:0}.fact-row{border-bottom:1px solid var(--divider);justify-content:space-between;align-items:baseline;gap:20px;min-height:60px;padding:16px 0;display:flex}.fact-row dt{flex:45%;font-size:.9375rem}.fact-row dd{text-align:right;overflow-wrap:anywhere;flex:55%;max-width:62%;margin:0}.overview .fact-row{padding:18px 0}.source-note{overflow-wrap:anywhere;margin:14px 0 0}.source-note a{color:var(--text-secondary)}.source-entry{border-bottom:1px solid var(--divider);padding:24px 0}.source-entry h2{font:700 1rem/1.5 var(--font-body)}.tool-row{border-bottom:1px solid var(--divider);text-align:left;border-radius:0;align-items:center;gap:16px;width:100%;min-height:72px;padding:16px 0;font-size:1rem;font-weight:400;display:flex}.tool-row>span{flex:1}.tool-row.coming{color:var(--text-secondary)}.coming small{font-size:.75rem}.table-scroll{max-width:100%;margin:24px 0;overflow:auto}.compare-table{border-collapse:collapse;width:100%;font-size:.875rem}.compare-table th,.compare-table td{text-align:left;vertical-align:top;border-bottom:1px solid var(--divider);min-width:170px;padding:16px}.compare-table th:first-child{min-width:150px;padding-left:0}.compare-table thead th{background:var(--surface);vertical-align:middle}.compare-table td p{margin-bottom:6px}.compare-table .source-note{font-size:.75rem}.notice{background:var(--status-info-background);color:var(--status-info-foreground);overflow-wrap:anywhere;border-radius:8px;margin:20px 0;padding:16px}.warning{background:var(--status-warning-background);color:var(--status-warning-foreground)}.error{background:var(--status-error-background);color:var(--status-error-foreground)}.info{background:var(--status-info-background);color:var(--status-info-foreground)}.danger-text{color:var(--status-error-foreground)}label{margin-bottom:20px;font-size:.875rem;font-weight:700;display:block}label input:not([type=checkbox]):not([type=file]),.field-group>input,select{border:1px solid var(--control-border);background:var(--background);width:100%;max-width:100%;min-height:50px;margin-top:8px;padding:10px 12px;font-size:1rem;font-weight:400}select{height:3.125rem}.charge-grid{grid-template-columns:minmax(0,1fr) 100px;gap:16px;margin-top:32px;display:grid}.charge-grid .number-input,.charge-grid select{min-height:50px;font-size:1rem;line-height:1.5}.field-help{margin-top:-12px;margin-bottom:20px}.checkbox{align-items:center;gap:12px;min-height:44px;margin:8px 0;font-weight:400;display:flex}.checkbox input{width:22px;height:22px;accent-color:var(--text);flex-shrink:0}.check-options{margin:16px 0 28px}.conditional-options{border-left:2px solid var(--divider);margin:8px 0 20px;padding-left:16px}.context-refrigerant{margin:8px 0;font-size:1.25rem}.result-section{margin:32px 0}.result-card{border-radius:12px;padding:24px}.result-label{font-weight:700}.result-number{font-family:var(--font-data);margin:20px 0 24px;font-size:2rem;font-weight:800;line-height:1.25}.reason{margin-top:8px;font-size:.875rem;display:block}.result-card p:last-child{margin-bottom:0}.result-section>.caption{margin-top:16px}.calculation-details{margin-top:24px}.component-calculation{border-bottom:1px solid var(--divider);padding:16px 0}.component-calculation p{overflow-wrap:anywhere;margin:8px 0}.component-calculation strong{font-size:1.25rem}.button-group,.settings-actions{flex-wrap:wrap;gap:12px;display:flex}.settings-actions{flex-direction:column;align-items:flex-start}.settings-fields{max-width:480px}.upload{cursor:pointer;margin:0;font-weight:700;position:relative;overflow:hidden}.upload input{opacity:0;cursor:pointer;width:100%;position:absolute;inset:0}.saved-entry{border-bottom:1px solid var(--divider);padding:12px 0}.saved-entry>summary{padding:12px 0}.saved-entry summary .mono{font-size:1.375rem}.saved-entry summary .secondary{margin-top:4px;font-size:.8125rem;font-weight:400;display:block}.main-nav{border-top:1px solid var(--divider);background:var(--background);width:min(100%,760px);padding:10px 12px max(12px, env(safe-area-inset-bottom));z-index:5;justify-content:space-around;align-items:stretch;display:flex;position:fixed;bottom:0;left:50%;transform:translate(-50%)}.main-nav a{min-width:0;color:var(--text-secondary);flex-direction:column;flex:1;justify-content:center;align-items:center;gap:6px;padding:8px 3px 10px;font-size:.6875rem;text-decoration:none;display:flex;position:relative}.main-nav a[aria-current]{color:var(--link);font-weight:700}.main-nav a[aria-current]:after{content:"";background:var(--link);border-radius:2px;width:52px;height:3px;position:absolute;bottom:0}.data-footer{color:var(--text-secondary);flex-direction:column;gap:4px;margin:48px 0 0;font-size:.6875rem;display:flex}.comparison-bar{background:var(--surface);border-radius:8px;justify-content:space-between;align-items:center;margin-top:24px;padding:8px 16px;display:flex}.live-message:not(:empty),.undo-toast{background:var(--primary-background);color:var(--primary-foreground);border:1px solid var(--control-border);z-index:10;border-radius:10px;width:max-content;max-width:calc(100% - 32px);padding:12px 16px;font-size:.875rem;position:fixed;bottom:112px;left:50%;transform:translate(-50%)}.undo-toast{align-items:center;gap:16px;display:flex}.undo-toast button{color:inherit}.skip-link{z-index:100;background:var(--background);padding:12px;position:fixed;top:-100px;left:16px}.skip-link:focus{top:16px}:focus-visible,.upload:focus-within{outline:3px solid var(--focus-ring);outline-offset:3px}#detail-panel:focus:not(:focus-visible){outline:none}@media (width>=760px){.app-shell{padding-left:48px;padding-right:48px}.brand-header{padding-top:40px;padding-bottom:48px}.form-grid{grid-template-columns:1fr 1fr}.main-nav a{font-size:.8125rem}.main-nav{padding-left:40px;padding-right:40px}h1{font-size:1.75rem}.tabs button{font-size:1rem}.refrigerant-link strong{font-size:1.5rem}.detail-heading h1{font-size:2.625rem}.result-number{font-size:2.5rem}}@media (width<=360px){.app-shell{padding-left:20px;padding-right:20px}.tabs{gap:8px}.tabs button{font-size:.75rem}.row-controls{flex-wrap:wrap;max-width:88px}.row-controls>svg{display:none}.brand-header a{font-size:1.125rem}}@media (prefers-reduced-motion:reduce){*,:before,:after{scroll-behavior:auto!important;transition:none!important;animation:none!important}}.restriction{border-bottom:1px solid var(--divider);padding:12px 0}.restriction summary>span{display:block}.restriction summary .status-label{color:var(--status-warning-foreground);margin-bottom:8px;font-size:.8125rem}.restriction summary .caption{margin-bottom:8px}.restriction p{font-size:.875rem}.drag-handle{touch-action:none;cursor:grab}.drag-handle:active{cursor:grabbing}@media (width<=440px){.row-controls{grid-template-columns:44px 44px;display:grid}.refrigerant-row:has(.row-controls)>.refrigerant-link{min-height:92px}}.tabs button{overflow-wrap:anywhere;flex:1;min-width:0}.main-nav a span{overflow-wrap:anywhere;max-width:100%}input[aria-invalid=true]{border-color:var(--status-error-foreground)!important}.fact-row dt,.fact-row dd,.tool-row>span{overflow-wrap:anywhere;min-width:0}.main-nav{width:min(100vw,760px)}#main:focus{outline:none}.tabs{gap:8px;overflow-x:auto}.tabs button{white-space:nowrap;overflow-wrap:normal;flex:1 0 auto;min-width:max-content;font-size:.8125rem}.skip-link:not(:focus){clip-path:inset(50%);white-space:nowrap;width:1px;height:1px;padding:0;overflow:hidden}.undo-toast{background:var(--status-error-background);color:var(--status-error-foreground);border-color:var(--status-error-foreground)}.field-group{margin-bottom:20px}.help-heading{align-items:center;gap:4px;min-height:28px;display:flex;position:relative}.help-heading>label{margin:0}.info-help{display:inline-flex}.info-help-button{width:44px;height:44px;color:var(--secondary-text,var(--text));justify-content:center;align-items:center;margin-block:-8px;display:inline-flex}.info-help-content{z-index:10;background:var(--background);border:1px solid var(--control-border);width:min(100%,24rem);color:var(--text);border-radius:8px;padding:12px 16px;font-size:.875rem;font-weight:400;line-height:1.5;position:absolute;top:calc(100% + 6px);left:0}.info-help-content[hidden]{display:none}.picker-compact-trigger{justify-content:space-between;align-items:center;width:100%;padding:14px 16px;display:flex}.picker-compact-trigger strong{font-size:1.25rem}.picker-dialog{border:1px solid var(--control-border);width:min(38rem,100vw - 32px);max-height:calc(100dvh - 32px);color:var(--text);background:var(--background);border-radius:12px;padding:0}.picker-dialog::backdrop{background:#00000073}.picker-dialog-content{padding:20px}.picker-dialog-heading{justify-content:space-between;align-items:center;gap:16px;margin-bottom:20px;display:flex}.picker-dialog-heading h2{margin:0;font-size:1.125rem}.picker-dialog .picker-results{overscroll-behavior:contain;max-height:min(55dvh,32rem);overflow-y:auto}.picker-scope{border-bottom:1px solid var(--divider);grid-template-columns:1fr 1fr;margin-top:16px;display:grid}.picker-scope button{border-bottom:3px solid #0000;border-radius:0;min-height:44px;padding:8px}.picker-scope button[aria-pressed=true]{border-bottom-color:var(--text)}.switch-label{align-items:center;gap:12px;min-height:44px;margin:0;font-weight:400;display:inline-flex}.switch-label input[role=switch]{appearance:none;border:1px solid var(--control-border);background:var(--background);cursor:pointer;border-radius:20px;flex-shrink:0;width:44px;height:26px;min-height:26px;margin:0;padding:0;position:relative}.switch-label input[role=switch]:after{content:"";background:var(--text);border-radius:50%;width:18px;height:18px;position:absolute;top:3px;left:3px}.switch-label input[role=switch]:checked{background:var(--text)}.switch-label input[role=switch]:checked:after{background:var(--background);left:21px}.pressure-reference-toggle{margin-block:16px}.picker-current{text-align:start;gap:4px;display:grid}.picker-current .caption{font-weight:400}.field-group>input[type=date]{box-sizing:border-box;appearance:none;width:100%;min-width:0;max-width:100%;display:block}.field-group>input[type=date]::-webkit-date-and-time-value{text-align:left;min-width:0}.about-section{max-width:680px}.about-details{margin:24px 0}.about-details>div{border-bottom:1px solid var(--divider);grid-template-columns:minmax(0,1fr) minmax(0,1.5fr);align-items:baseline;gap:12px;padding:12px 0;display:grid}.about-details dt{color:var(--secondary-text)}.about-details dd{overflow-wrap:anywhere;margin:0}.about-section>.text-button{text-align:left;justify-content:flex-start}