.tool-page{--tool-green:#087d59;--tool-ink:#173c35;--tool-muted:#52665f;--tool-line:#d8e6df;color:var(--tool-ink);font-family:system-ui,-apple-system,"Segoe UI",sans-serif}
.tool-page section{padding:0!important}
body:has(.tool-page .calculator-workspace:focus-within) #floatingChatBtn,body:has(.tool-page .calculator-workspace:focus-within) #scrollToTop{visibility:hidden!important;pointer-events:none}
.tool-hero{background:linear-gradient(125deg,#f0faf5,#e4f5ec);padding:28px 0 34px;border-bottom:1px solid var(--tool-line)}
.tool-breadcrumb{display:flex;flex-wrap:wrap;gap:8px 12px;list-style:none;padding:0;margin:0 0 24px;font-size:.85rem;color:var(--tool-muted)}.tool-breadcrumb li+li:before{content:'/';margin-right:12px;color:#778e84}.tool-breadcrumb a{color:var(--tool-green)}
.tool-eyebrow{text-transform:uppercase;letter-spacing:.09em;font-size:.72rem;font-weight:700;margin-bottom:12px;color:var(--tool-green)}.tool-hero h1{font-size:clamp(1.8rem,3.5vw,2.6rem);line-height:1.15;font-weight:750;max-width:850px;margin-bottom:16px}.tool-intro{max-width:760px;line-height:1.65;font-size:1.06rem;color:var(--tool-muted);margin-bottom:15px}.tool-skip{font-size:.9rem;color:var(--tool-green);text-underline-offset:4px}
.tool-content{padding-top:32px;padding-bottom:56px}.calculator-workspace{display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr);border:1px solid var(--tool-line);border-radius:20px;overflow:hidden;background:#fff;box-shadow:0 12px 34px #193e2710;scroll-margin-top:110px}.calc-form-panel,.calc-result-panel{padding:30px;min-width:0}.calc-result-panel{background:#f3f8f5;border-left:1px solid var(--tool-line)}.calc-panel-heading{margin-bottom:22px}.calc-panel-heading h2,.calc-result-panel h2{font-size:1.35rem;font-weight:700;margin:0 0 7px}.calc-local{font-size:.8rem;color:var(--tool-muted)}
.calc-fields{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px 16px}.calc-field{min-width:0}.calc-field label,.calc-field legend,.calc-units legend{font-size:.87rem;line-height:1.4;font-weight:650;margin-bottom:7px;float:none;width:auto;color:var(--tool-ink)}.calc-field fieldset{margin:0;border:0;padding:0}.calc-field input[type=text],.calc-field select{display:block;width:100%;min-height:48px;padding:11px 12px;background-color:#fff;border:1px solid #b4c7bc;border-radius:9px;color:#183c32;font-size:16px;line-height:1.4}.calc-field select{appearance:auto;padding-right:8px}.calc-field input[aria-invalid=true],.calc-field select[aria-invalid=true]{border:2px solid #ad3028}.calc-field input:focus-visible,.calc-field select:focus-visible,.tool-page button:focus-visible,.tool-page a:focus-visible,.tool-page summary:focus-visible{outline:3px solid #259d77;outline-offset:3px}.calc-hint{display:block;line-height:1.5;font-size:.76rem;color:var(--tool-muted);margin-top:6px}.calc-hint:empty{display:none}.calc-optional{font-size:.73rem;font-weight:400;color:var(--tool-muted)}.calc-unit{font-weight:400}.calc-field-error{display:block;color:#a62d24;font-size:.8rem;margin-top:5px}.calc-radio-options{display:flex;gap:8px;min-height:48px}.calc-radio-options label{display:flex;align-items:center;gap:7px;flex:1;cursor:pointer;border:1px solid #b4c7bc;border-radius:9px;padding:10px;background:#fff;margin:0;min-width:0}.calc-radio-options label:has(:checked){border-color:var(--tool-green);background:#f0faf4}.calc-radio-options input,.calc-units input{appearance:auto;display:inline-block!important;opacity:1!important;position:static!important;width:18px!important;height:18px!important;accent-color:var(--tool-green);margin:0;flex-shrink:0}.calc-radio-options input:focus-visible,.calc-units input:focus-visible{outline:3px solid #259d77;outline-offset:4px}
.calc-units{display:flex;gap:12px;flex-wrap:wrap;border:0;border-bottom:1px solid var(--tool-line);padding:0 0 17px;margin:0 0 20px}.calc-units legend{width:100%;margin:0 0 10px}.calc-units label{font-size:.8rem;display:flex;align-items:center;gap:7px;padding:6px 0;cursor:pointer;min-height:32px}.calc-advanced{margin-top:20px;border-top:1px solid var(--tool-line);padding-top:16px}.calc-advanced summary{cursor:pointer;font-size:.88rem;font-weight:600;min-height:32px}.calc-advanced .calc-fields{margin-top:16px}.calc-scope{font-size:.77rem;line-height:1.6;color:var(--tool-muted);margin:22px 0 16px}.calc-actions{display:flex;gap:12px;align-items:center}.calc-actions button{min-height:50px;border-radius:10px;font-weight:650;font-size:.98rem}.calc-submit{flex:1;border:0;background:var(--tool-green);color:#fff;padding:12px 20px;display:flex;justify-content:space-between;align-items:center}.calc-submit:hover{background:#056747}.calc-submit:disabled{opacity:.5}.calc-reset{border:1px solid #c0d1c7;background:#fff;color:var(--tool-ink);padding:11px 16px}.calc-privacy{font-size:.71rem;line-height:1.6;color:var(--tool-muted);margin:14px 0 0}.calc-error{color:#a62d24;font-size:.9rem;line-height:1.5;margin-bottom:16px}
.calc-result-placeholder{display:flex;flex-direction:column;justify-content:center;min-height:320px;height:100%;max-width:350px;margin:auto}.calc-result-placeholder p{color:var(--tool-muted);font-size:.94rem;line-height:1.75}.calc-placeholder-icon{font-size:2rem;color:var(--tool-green);margin-bottom:24px}.calc-result-panel h2{scroll-margin-top:130px;outline-offset:5px}.calc-metrics{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px 20px;margin:22px 0}.calc-metric{border-bottom:1px solid var(--tool-line);padding-bottom:15px}.calc-metric:first-child{grid-column:1/-1}.calc-metric dt{font-size:.8rem;color:var(--tool-muted);font-weight:500;line-height:1.45}.calc-metric dd{font-weight:720;font-size:1.4rem;line-height:1.2;margin:6px 0 0;overflow-wrap:anywhere}.calc-metric:first-child dd{font-size:clamp(2rem,4.5vw,3rem);color:var(--tool-green)}.calc-result-unit{font-size:.72rem;font-weight:500;color:var(--tool-muted);margin-left:6px}.calc-category{font-size:.92rem;font-weight:600}.calc-note{font-size:.85rem;line-height:1.7;margin-bottom:13px;color:#3b5449}.calc-method{font-size:.8rem;border-top:1px solid var(--tool-line);padding-top:15px;color:var(--tool-muted)}.calc-detail{border-top:1px solid var(--tool-line);padding:13px 0}.calc-detail summary{font-size:.89rem;font-weight:600;cursor:pointer;padding:4px 0}.calc-detail table{width:100%;border-collapse:collapse;font-size:.83rem;margin-top:12px}.calc-detail th,.calc-detail td{padding:9px 4px;text-align:left;border-bottom:1px solid var(--tool-line);overflow-wrap:anywhere}.calc-detail td:last-child{text-align:right;font-variant-numeric:tabular-nums;white-space:nowrap}.calc-detail th{font-weight:500}.calc-result-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:20px}.calc-result-actions button{border:1px solid #a9c0b4;background:#fff;color:var(--tool-ink);border-radius:8px;padding:10px 16px;font-size:.84rem;min-height:44px}#calc-copy-fallback{width:100%;min-height:150px;margin-top:15px}.calc-sr-only{position:absolute!important;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}.tool-page [hidden]{display:none!important}
.tool-reading-main{min-width:0}.tool-reading-layout{display:grid;grid-template-columns:minmax(0,1fr) 270px;gap:50px;margin-top:55px}.tool-guide{min-width:0;font-size:1rem;line-height:1.85;scroll-margin-top:110px}.tool-guide h2{font-size:1.55rem;line-height:1.35;margin:35px 0 16px;font-weight:700}.tool-guide h2:first-child{margin-top:0}.tool-guide h3{font-size:1.17rem;line-height:1.4;margin-top:27px;font-weight:650}.tool-guide p{margin-bottom:19px}.tool-guide a{color:#06734f;text-underline-offset:3px;text-decoration:underline}.tool-guide .formula{padding:18px;background:#f2f7f4;border-radius:10px;overflow-wrap:anywhere;font-variant-numeric:tabular-nums}.tool-related{align-self:start;border-top:2px solid var(--tool-green);padding-top:20px}.tool-related h2{font-size:1.1rem;font-weight:700}.tool-related p{font-size:.85rem;line-height:1.65;color:var(--tool-muted)}.tool-related ul{list-style:none;padding:0}.tool-related li{border-bottom:1px solid var(--tool-line)}.tool-related li a{display:flex;justify-content:space-between;gap:15px;font-size:.86rem;padding:14px 0;color:var(--tool-ink);line-height:1.5;text-decoration:none}.tool-service-link{display:inline-block;margin-top:16px;color:var(--tool-green);font-size:.86rem;line-height:1.6}.tool-sources{font-size:.85rem;color:var(--tool-muted)}
@media(max-width:991px){.calc-form-panel,.calc-result-panel{padding:24px}.calculator-workspace{grid-template-columns:1fr}.calc-result-panel{border-left:0;border-top:1px solid var(--tool-line)}.tool-reading-layout{grid-template-columns:minmax(0,1fr) 220px;gap:28px}.calc-fields{grid-template-columns:repeat(2,minmax(0,1fr))}.calc-result-placeholder{min-height:0;padding:8px 0;max-width:none}.calc-placeholder-icon{display:none}.calc-result-placeholder h2{font-size:1rem}.calc-result-placeholder p{margin:0;font-size:.85rem}}
@media(max-width:767px){.tool-hero{padding:20px 0 26px}.tool-breadcrumb{font-size:.73rem;margin-bottom:20px}.tool-intro{font-size:.96rem}.tool-content{padding-top:22px}.calculator-workspace{grid-template-columns:1fr;border-radius:15px}.calc-form-panel,.calc-result-panel{padding:23px 20px}.calc-result-panel{border-left:0;border-top:1px solid var(--tool-line)}.calc-result-placeholder{min-height:0;padding:8px 0;max-width:none}.calc-placeholder-icon{display:none}.calc-result-placeholder h2{font-size:1rem}.calc-result-placeholder p{margin:0;font-size:.85rem}.calc-fields{grid-template-columns:repeat(2,minmax(0,1fr));gap:18px 12px}.calc-field:has(select),.calc-field:has(fieldset){grid-column:1/-1}.calc-field label{font-size:.82rem}.calc-radio-options label{font-size:.9rem}.tool-reading-layout{grid-template-columns:1fr;margin-top:36px;gap:30px}.tool-guide h2{font-size:1.35rem}.tool-guide{font-size:.96rem}.calc-units{gap:18px}.calc-privacy{font-size:.72rem}.tool-related ul{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:0 20px}}
@media(max-width:374px){.calc-form-panel,.calc-result-panel{padding:21px 16px}.calc-fields{grid-template-columns:1fr}.tool-hero h1{font-size:1.75rem}.calc-metric dd{font-size:1.25rem}}
@media(prefers-reduced-motion:reduce){.tool-page *{scroll-behavior:auto!important}}
@media print{body:has(.tool-page) header,body:has(.tool-page) footer,body:has(.tool-page) nav,.calc-form-panel,.tool-reading-layout,.calc-result-actions,.calc-result-placeholder,.calc-privacy{display:none!important}.tool-content{padding:0}.calculator-workspace{display:block;box-shadow:none;border:0}.calc-result-panel{border:0;background:#fff}.calc-detail{break-inside:avoid}.calc-detail::details-content{display:block}.tool-page{color:#000}}
@media print{body:has(.tool-page) .tool-hero{display:block!important;padding:0;background:#fff;border:0}.tool-hero .tool-eyebrow,.tool-hero .tool-intro,.tool-hero .tool-skip,body:has(.tool-page) #floatingChatBtn,body:has(.tool-page) #scrollToTop{display:none!important}.tool-hero h1{font-size:20pt}}

/* Tables remain tables. Only the surrounding region scrolls on narrow screens. */
.tool-table-frame{margin:24px 0;min-width:0}
.tool-table-scroll{width:100%;max-width:100%;overflow-x:auto;overscroll-behavior-x:contain;border:1px solid #dbe7cd;border-radius:10px;background:#fff;scrollbar-width:thin;scrollbar-color:#76b100 #f0f5e9}
.tool-table-scroll:focus-visible{outline:3px solid #259d77;outline-offset:3px}
.tool-page .tool-guide table{display:table;width:100%;min-width:100%;max-width:none;margin:0;border:0;border-radius:0;box-shadow:none;border-collapse:separate;border-spacing:0;overflow:visible;white-space:normal;font-size:.9rem;line-height:1.6}
.tool-page .tool-guide thead{background:linear-gradient(135deg,#76b100,#8ecf35);color:#173215}
.tool-page .tool-guide th,.tool-page .tool-guide td{padding:13px 16px;border:0;border-bottom:1px solid #e3ebda;text-align:left;vertical-align:top;overflow-wrap:break-word;white-space:normal}
.tool-page .tool-guide th{background:transparent;color:#173215;font-weight:650;text-transform:none;letter-spacing:normal}
.tool-page .tool-guide tbody tr{background:#fff}
.tool-page .tool-guide tbody tr:nth-child(even){background:#f6f9f1}
.tool-page .tool-guide tbody tr:hover{background:#edf5e0;transform:none;box-shadow:none}
.tool-page .tool-guide tbody tr:last-child td,.tool-page .tool-guide tbody tr:last-child th{border-bottom:0}
.tool-page .tool-guide caption{caption-side:bottom;padding:11px 16px;background:#fafcf7;border-top:1px solid #e3ebda;font-size:.78rem;line-height:1.5;color:#52634b;text-align:left}
.tool-table-hint{display:none;font-size:.75rem!important;line-height:1.5!important;margin:7px 0 0!important;color:var(--tool-muted)}
.tool-table-frame[data-overflow=true] .tool-table-hint{display:block}
.calc-field-error:empty,.calc-field-feedback:empty{display:none}
.calc-field-feedback{display:block;margin-top:6px;color:#08734f;font-size:.78rem;line-height:1.5}
.calc-field-error{line-height:1.5}
.calc-hint a{color:var(--tool-green);text-underline-offset:3px}
.calc-units{gap:8px}
.calc-units label{padding:8px 12px;min-height:42px;border:1px solid #d8e6df;border-radius:8px;line-height:1.4}
.calc-units label:has(:checked){background:#edf8f2;border-color:#6eaa8e}
.calc-detail table{display:table;table-layout:auto;box-shadow:none}
.calc-detail tbody tr:nth-child(even){background:#eaf3e9}
.calc-detail th,.calc-detail td{padding:10px 8px}
.calc-detail th{color:#264638}
.calc-result-unit{display:inline-block;white-space:nowrap}
@media(max-width:991px){
 .calc-result-panel:has(#calc-result[hidden]){display:none}
 .tool-reading-layout{grid-template-columns:1fr;gap:28px}
 .tool-related ul{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:0 24px}
 .tool-guide{scroll-margin-top:160px}
}
@media(max-width:767px){
 .tool-hero{padding:18px 0 22px}
 .tool-breadcrumb{font-size:.75rem;gap:6px 10px;margin-bottom:14px}
 .tool-breadcrumb li[aria-current=page],.tool-eyebrow{display:none}
 .tool-hero h1{font-size:clamp(1.45rem,6vw,1.85rem);line-height:1.24;margin-bottom:12px;letter-spacing:-.025em}
 .tool-intro{font-size:.9rem;line-height:1.65;margin-bottom:12px}
 .tool-skip{font-size:.8rem;line-height:1.5;display:inline-block}
 .tool-content{padding-top:18px;padding-bottom:36px}
 .calculator-workspace{border-radius:12px;box-shadow:0 5px 18px #193e2709}
 .calc-form-panel,.calc-result-panel{padding:20px 16px}
 .calc-panel-heading{margin-bottom:16px}
 .calc-panel-heading h2,.calc-result-panel h2{font-size:1.1rem;line-height:1.35}
 .calc-local{font-size:.75rem}
 .calc-units{gap:8px;padding-bottom:14px;margin-bottom:16px}
 .calc-units legend{font-size:.78rem;margin-bottom:7px}
 .calc-units label{flex:1;justify-content:center;padding:8px 5px;font-size:.75rem;gap:5px}
 .calc-fields{grid-template-columns:repeat(12,minmax(0,1fr));gap:16px 12px}
 .calc-field{grid-column:span 6}
 .calc-field:has(select){grid-column:1/-1}
 .calc-fields:has([data-field=sex]) [data-field=age]{grid-column:span 4}
 .calc-fields [data-field=sex]{grid-column:span 8}
 .calculator-workspace[data-tool=bmi] .calc-fields>[data-field=age]{grid-column:1/-1}
 .calculator-workspace[data-tool=max-heart-rate] [data-field=age]{grid-column:span 4}
 .calculator-workspace[data-tool=max-heart-rate] [data-field=rest]{grid-column:span 8}
 .calc-field label,.calc-field legend{display:block;font-size:.8rem;line-height:1.5;margin-bottom:6px}
 .calc-radio-options{gap:6px}
 .calc-radio-options label{display:flex;font-size:.78rem;padding:9px 6px;gap:5px;margin:0}
 .calc-radio-options input,.calc-units input{width:16px!important;height:16px!important}
 .calc-field input[type=text],.calc-field select{font-family:inherit;font-size:16px;min-height:48px;padding:10px;border-radius:8px}
 .calc-field select{line-height:1.45}
 .calc-hint,.calc-field-feedback,.calc-field-error{font-size:.75rem;line-height:1.55;margin-top:5px}
 .calc-optional{font-size:.72rem}
 .calc-advanced{margin-top:16px;padding-top:12px}
 .calc-advanced summary{font-size:.8rem;min-height:36px;padding:6px 0}
 .calc-scope{font-size:.75rem;line-height:1.6;margin:15px 0 12px}
 .calc-actions{gap:10px}
 .calc-actions button{min-height:48px;font-size:.9rem;border-radius:8px}
 .calc-submit{padding:11px 14px}
 .calc-reset{padding:10px 13px}
 .calc-privacy{font-size:.72rem;line-height:1.6;margin-top:12px}
 .calc-metrics{gap:14px;margin:16px 0}
 .calc-metric{padding-bottom:12px}
 .calc-metric dt{font-size:.77rem;line-height:1.5}
 .calc-metric dd{font-size:1.2rem;line-height:1.3;letter-spacing:-.02em}
 .calc-metric:first-child dd{font-size:clamp(1.75rem,7vw,2.2rem)}
 .calc-result-unit{font-size:.72rem;margin-left:2px;letter-spacing:0}
 .calc-category{font-size:.86rem;line-height:1.6}
 .calc-note{font-size:.82rem;line-height:1.75;margin-bottom:12px}
 .calc-method{font-size:.76rem;line-height:1.65}
 .calc-detail summary{font-size:.83rem;line-height:1.5;padding:6px 0}
 .calc-detail table{font-size:.78rem}
 .calc-detail th,.calc-detail td{padding:10px 6px}
 .calc-result-actions{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-top:14px}
 .calc-result-actions button{font-size:.8rem;min-height:44px;padding:10px 8px}
 .tool-reading-layout{margin-top:30px;gap:28px}
 .tool-guide{font-size:.9rem;line-height:1.8}
 .tool-guide h2{font-size:1.22rem;line-height:1.4;margin:28px 0 13px;letter-spacing:-.015em}
 .tool-guide h3{font-size:1.06rem;line-height:1.45}
 .tool-guide p{margin-bottom:16px}
 .tool-guide .formula{padding:14px;font-size:.85rem;line-height:1.7}
 .tool-table-frame{margin:20px 0}
 .tool-page .tool-guide table{font-size:.8rem;line-height:1.65}
 .tool-page .tool-guide th,.tool-page .tool-guide td{padding:11px 12px}
 .tool-page .tool-guide caption{padding:10px 12px;font-size:.72rem}
 .tool-page .tool-table-wide table{min-width:480px}


 /* Mobile navigation uses comfortable, distinct link targets. Desktop stays unchanged. */
 .tool-related{padding:20px 18px;border:1px solid var(--tool-line);border-radius:16px;background:#f3f8f5}
 .tool-related h2{font-size:1.08rem;margin:0 0 8px}
 .tool-related p{font-size:.84rem;line-height:1.65;margin:0 0 18px}
 .tool-related ul{grid-template-columns:1fr;gap:10px;margin:0}
 .tool-related li{border:0}
 .tool-related li a{align-items:center;gap:14px;min-height:56px;padding:14px 16px;border:1px solid #c5dacf;border-radius:10px;background:#fff;font-size:.88rem;font-weight:600;line-height:1.5}
 .tool-related li a span{display:flex;align-items:center;justify-content:center;flex-shrink:0;width:28px;height:28px;border-radius:50%;background:#edf6f0;color:var(--tool-green);font-size:1rem}
 .tool-related li a:hover{border-color:var(--tool-green);background:#fafffc}
 .tool-related .tool-service-link{display:flex;align-items:center;justify-content:space-between;gap:14px;min-height:54px;margin-top:16px;padding:14px 16px;border:1px solid var(--tool-green);border-radius:10px;background:var(--tool-green);color:#fff;font-size:.88rem;font-weight:650;line-height:1.5;text-decoration:none}
 .tool-related .tool-service-link span{flex-shrink:0;font-size:1.1rem}
 .tool-related .tool-service-link:hover{background:#056747;border-color:#056747}
}
@media(max-width:350px){
 .calc-fields:has([data-field=sex]) [data-field=age],.calc-fields [data-field=sex]{grid-column:1/-1}
 .calc-units label{font-size:.7rem}
 .calc-form-panel,.calc-result-panel{padding:18px 13px}
}
@media print{.tool-table-scroll{overflow:visible}.tool-table-hint{display:none!important}.calc-result-panel{display:block}}