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b{color:var(--ink);font-weight:600}.disclaimer{color:var(--muted);max-width:42ch;margin-top:10px;font-size:12px;line-height:1.5}.cta-norm{color:var(--muted);margin-top:1px;font-size:10.5px}.prose{max-width:720px;margin:40px auto 120px;padding:0 16px}.prose h2{font-family:var(--fd);letter-spacing:-.02em;margin:40px 0 12px;font-size:clamp(22px,5vw,27px);font-weight:800;line-height:1.15}.prose h3{font-family:var(--fd);letter-spacing:-.01em;margin:28px 0 8px;font-size:19px;font-weight:600}.prose p{color:var(--ink);margin:0 0 14px;font-size:16px;line-height:1.62}.prose p.lead{color:var(--muted)}.prose ol,.prose ul{color:var(--ink);margin:0 0 14px;padding-left:22px;font-size:16px;line-height:1.6}.prose li{margin-bottom:8px}.prose a{color:var(--accent);border-bottom:1px solid var(--accent);text-decoration:none}@supports (color:color-mix(in lab,red,red)){.prose a{border-bottom:1px solid color-mix(in oklab,var(--accent) 40%,transparent)}}.prose a:hover{border-bottom-color:var(--accent)}.zone-table{border-collapse:collapse;width:100%;margin:6px 0 16px;font-size:14.5px}.zone-table th,.zone-table td{text-align:left;border-bottom:1px solid var(--line);padding:10px 12px}.zone-table thead th{font-family:var(--fm);text-transform:uppercase;letter-spacing:.08em;color:var(--muted);font-size:10.5px}.zone-table td:first-child{color:var(--muted)}.zone-table td.tnum,.zone-table th.tnum{font-family:var(--fm);font-variant-numeric:tabular-nums}.mod-grid{grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:12px;margin:8px 0 14px;display:grid}.mod-card{background:var(--card);border:1px solid var(--line);border-radius:18px;padding:18px}.mod-card h3{margin:0 0 6px;font-size:16px;font-weight:700}.mod-card.accent h3{color:var(--accent)}.mod-card p{color:var(--muted);margin:0;font-size:14px;line-height:1.55}.faq details{border-bottom:1px solid var(--line);padding:4px 0}.faq summary{cursor:pointer;padding:14px 30px 14px 0;font-size:16px;font-weight:600;list-style:none;position:relative}.faq summary::-webkit-details-marker{display:none}.faq summary:after{content:"+";font-family:var(--fm);color:var(--muted);font-size:20px;transition:transform .2s;position:absolute;top:12px;right:4px}.faq details[open] summary:after{content:"−"}.faq details p{color:var(--muted);margin:0;padding-bottom:12px}.link-cols{grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:8px 24px;font-size:15px;display:grid}.link-cols>div{padding:6px 0}.link-cols .h-label{margin-bottom:6px}.eyebrow-src{font-family:var(--fm);letter-spacing:.16em;text-transform:uppercase;color:var(--muted);font-size:10px}.formula-wrap{max-width:720px;margin:0 auto;padding:22px 16px 110px}.crumbs{font-family:var(--fm);letter-spacing:.08em;color:var(--muted);flex-wrap:wrap;align-items:center;gap:8px;margin-bottom:22px;font-size:11px;display:flex}.crumbs a{color:var(--muted);text-decoration:none}.crumbs a:hover,.crumbs .cur{color:var(--ink)}.formula-title{font-family:var(--fd);letter-spacing:-.02em;margin:0 0 12px;font-size:clamp(28px,6.5vw,34px);font-weight:800;line-height:1.05}.formula-lede{color:var(--muted);margin:0 0 24px;font-size:16px;line-height:1.5}.formula-card{background:var(--card);border:1px solid var(--line);border-radius:22px;flex-direction:column;gap:16px;padding:22px 20px 20px;display:flex}.formula-eq{font-family:var(--fm);letter-spacing:-.01em;flex-wrap:wrap;align-items:center;gap:8px;font-size:clamp(16px,4.6vw,20px);line-height:1.7;display:flex}.fp-res{color:var(--accent);font-weight:700}.fp-op{color:var(--muted)}.fp-num{color:var(--ink)}.fp-var{color:var(--accent);border-bottom:2px solid var(--accent)}.formula-vars{grid-template-columns:repeat(auto-fit,minmax(140px,1fr));gap:10px;display:grid}.fvar{background:var(--card2);border:1px solid var(--line);border-radius:14px;flex-direction:column;gap:3px;padding:12px 14px;display:flex}.fvar-sym{font-family:var(--fm);color:var(--accent);font-size:12px}.fvar-desc{color:var(--muted);font-size:13px}.mini-run{flex-direction:column;gap:14px;display:flex}.mini-head{flex-wrap:wrap;justify-content:space-between;align-items:baseline;gap:12px;display:flex}.mini-chip{font-family:var(--fm);letter-spacing:.06em;cursor:pointer;border:1px solid var(--line);color:var(--muted);background:0 0;border-radius:999px;padding:7px 12px;font-size:11px;transition:background .18s,color .18s}.mini-chip.on{background:var(--accent);color:var(--accent-ink);border-color:var(--accent);font-weight:700}.mini-slider{flex-direction:column;gap:8px;display:flex}.mini-slider-head{justify-content:space-between;align-items:baseline;font-size:14px;font-weight:600;display:flex}.mini-slider-head .tnum{font-size:15px;font-weight:400}.mini-unit{color:var(--muted);font-size:.8em}input[type=range]{appearance:none;cursor:pointer;background:0 0;width:100%;height:22px}input[type=range]::-webkit-slider-runnable-track{background:var(--line);border-radius:2px;height:4px}input[type=range]::-webkit-slider-thumb{-webkit-appearance:none;background:var(--accent);border:3px solid var(--paper);border-radius:50%;width:22px;height:22px;margin-top:-9px}input[type=range]::-moz-range-track{background:var(--line);border-radius:2px;height:4px}input[type=range]::-moz-range-thumb{border:3px solid var(--paper);background:var(--accent);border-radius:50%;width:22px;height:22px}.mini-result{background:var(--band);border-radius:16px;flex-wrap:wrap;justify-content:space-between;align-items:center;gap:14px;padding:16px 18px;display:flex}.mini-result-lbl{color:var(--muted);font-size:13px}.mini-bmr{color:var(--accent);font-size:28px;font-weight:700;line-height:1.1}.mini-tdee{font-size:18px;font-weight:700}.mini-spread{height:66px;position:relative}.ms-track{background:var(--band);border-radius:5px;height:10px;position:absolute;top:28px;left:0;right:0}.ms-range{background:var(--accent);opacity:.28;border-radius:5px;height:10px;transition:left .35s,width .35s;position:absolute;top:28px}.ms-mark{background:var(--accent);border:4px solid var(--paper);border-radius:50%;width:20px;height:20px;transition:left .35s;position:absolute;top:23px;transform:translate(-50%)}.ms-mark-lbl{color:var(--accent);font-size:12px;font-weight:700;transition:left .35s;position:absolute;top:0;transform:translate(-50%)}.ms-axis{color:var(--muted);font-size:11px;position:absolute;top:48px}.ms-lo{left:0}.ms-hi{right:0}.mini-list{margin-top:4px}.mini-list-row{border-top:1px solid var(--line);justify-content:space-between;align-items:center;gap:12px;padding:11px 0;font-size:14px;display:flex}.mini-note{color:var(--muted);margin:14px 0 0;font-size:13px;line-height:1.5}.mini-note b{color:var(--ink)}.acc-grid{flex-wrap:wrap;gap:14px;display:flex}.acc-card{background:var(--card);border:1px solid var(--line);border-radius:18px;flex-direction:column;flex:260px;gap:8px;padding:18px;display:flex}.acc-card h3{margin:0;font-size:14px;font-weight:700}.acc-card.good h3{color:var(--accent)}.acc-card p{color:var(--muted);margin:0;font-size:14px;line-height:1.55}.cta-card{background:var(--band);border-radius:22px;flex-direction:column;gap:14px;padding:22px;display:flex}.cta-card h2{font-family:var(--fd);letter-spacing:-.01em;margin:0;font-size:20px;font-weight:800}.cta-card p{color:var(--muted);margin:0;font-size:14px;line-height:1.5}.cta-card a{background:var(--accent);color:var(--accent-ink);border-radius:999px;align-self:flex-start;padding:14px 22px;font-size:15px;font-weight:700;text-decoration:none}.related-grid{grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:10px;display:grid}.related-grid a{background:var(--card);border:1px solid var(--line);color:var(--ink);border-radius:16px;flex-direction:column;gap:4px;padding:16px;text-decoration:none;display:flex}.related-grid a:hover{border-color:var(--accent)}.related-grid .rn{font-size:15px;font-weight:700}.related-grid .rd{color:var(--muted);font-size:13px}.calc-list{grid-template-columns:1fr 1fr;column-gap:44px;display:grid}.calc-list a{border-bottom:1px solid var(--line);color:var(--ink);justify-content:space-between;align-items:baseline;gap:12px;padding:15px 2px;text-decoration:none;transition:color .15s,border-color .15s;display:flex}.calc-list a:hover{color:var(--accent);border-color:var(--accent)}.calc-list .cl-n{font-family:var(--fd);letter-spacing:-.01em;font-size:19px;font-weight:600}.calc-list .cl-m{font-family:var(--fm);letter-spacing:.08em;text-transform:uppercase;color:var(--muted);white-space:nowrap;font-size:11px}@media(max-width:560px){.calc-list{grid-template-columns:1fr}}.fullband{background:var(--band);margin:8px 0;padding:40px 20px;position:relative;overflow:hidden}.fullband .fullband-in{z-index:1;max-width:860px;margin:0 auto;position:relative}.fullband .fb-bg{opacity:.07;pointer-events:none;width:70%;position:absolute;top:50%;right:-6%;transform:translateY(-50%)}@media(prefers-reduced-motion:reduce){.fullband .fb-bg{display:none}}.zone-row{background:var(--card2);border-radius:12px;justify-content:space-between;align-items:center;gap:12px;padding:11px 14px;display:flex}.zone-row .zr-name{font-size:13.5px;font-weight:600}.zone-row .zr-val{font-family:var(--fm);font-variant-numeric:tabular-nums;font-size:15px;font-weight:700}.zone-row .zr-val .u{color:var(--muted);font-size:.7em;font-weight:400}.door{flex-direction:column;gap:8px;display:flex}.door .rd{line-height:1.45}.door-cta{font-family:var(--fm);letter-spacing:.04em;color:var(--accent);margin-top:2px;font-size:11px}.method-table{border-collapse:collapse;width:100%;font-size:13px;line-height:1.45}.method-table th,.method-table td{text-align:left;vertical-align:top;border-bottom:1px solid var(--line);padding:10px 12px}.method-table thead th{font-family:var(--fm);letter-spacing:.1em;text-transform:uppercase;color:var(--muted);white-space:nowrap;font-size:10px;font-weight:400}.method-table .mt-group{font-family:var(--fd);color:var(--ink);background:var(--band);padding-top:18px;font-size:15px;font-weight:700}.method-table tbody th[scope=row]{min-width:132px;font-weight:400}.method-table .mt-name{font-weight:700}.method-table .mt-year{font-family:var(--fm);color:var(--muted);font-size:11px}.method-table .mt-auth{color:var(--muted);font-size:11.5px}.method-table td a{color:var(--accent)}@property --tw-rotate-x{syntax:"*";inherits:false}@property --tw-rotate-y{syntax:"*";inherits:false}@property --tw-rotate-z{syntax:"*";inherits:false}@property --tw-skew-x{syntax:"*";inherits:false}@property --tw-skew-y{syntax:"*";inherits:false}@property --tw-border-style{syntax:"*";inherits:false;initial-value:solid}@property --tw-ordinal{syntax:"*";inherits:false}@property --tw-slashed-zero{syntax:"*";inherits:false}@property --tw-numeric-figure{syntax:"*";inherits:false}@property --tw-numeric-spacing{syntax:"*";inherits:false}@property --tw-numeric-fraction{syntax:"*";inherits:false}@property --tw-shadow{syntax:"*";inherits:false;initial-value:0 0 #0000}@property --tw-shadow-color{syntax:"*";inherits:false}@property --tw-shadow-alpha{syntax:"<percentage>";inherits:false;initial-value:100%}@property --tw-inset-shadow{syntax:"*";inherits:false;initial-value:0 0 #0000}@property --tw-inset-shadow-color{syntax:"*";inherits:false}@property --tw-inset-shadow-alpha{syntax:"<percentage>";inherits:false;initial-value:100%}@property --tw-ring-color{syntax:"*";inherits:false}@property --tw-ring-shadow{syntax:"*";inherits:false;initial-value:0 0 #0000}@property --tw-inset-ring-color{syntax:"*";inherits:false}@property --tw-inset-ring-shadow{syntax:"*";inherits:false;initial-value:0 0 #0000}@property --tw-ring-inset{syntax:"*";inherits:false}@property --tw-ring-offset-width{syntax:"<length>";inherits:false;initial-value:0}@property --tw-ring-offset-color{syntax:"*";inherits:false;initial-value:#fff}@property --tw-ring-offset-shadow{syntax:"*";inherits:false;initial-value:0 0 #0000}@property --tw-outline-style{syntax:"*";inherits:false;initial-value:solid}@property --tw-blur{syntax:"*";inherits:false}@property --tw-brightness{syntax:"*";inherits:false}@property --tw-contrast{syntax:"*";inherits:false}@property --tw-grayscale{syntax:"*";inherits:false}@property --tw-hue-rotate{syntax:"*";inherits:false}@property --tw-invert{syntax:"*";inherits:false}@property --tw-opacity{syntax:"*";inherits:false}@property --tw-saturate{syntax:"*";inherits:false}@property --tw-sepia{syntax:"*";inherits:false}@property --tw-drop-shadow{syntax:"*";inherits:false}@property --tw-drop-shadow-color{syntax:"*";inherits:false}@property --tw-drop-shadow-alpha{syntax:"<percentage>";inherits:false;initial-value:100%}@property --tw-drop-shadow-size{syntax:"*";inherits:false}@property --tw-backdrop-blur{syntax:"*";inherits:false}@property --tw-backdrop-brightness{syntax:"*";inherits:false}@property --tw-backdrop-contrast{syntax:"*";inherits:false}@property --tw-backdrop-grayscale{syntax:"*";inherits:false}@property --tw-backdrop-hue-rotate{syntax:"*";inherits:false}@property --tw-backdrop-invert{syntax:"*";inherits:false}@property --tw-backdrop-opacity{syntax:"*";inherits:false}@property --tw-backdrop-saturate{syntax:"*";inherits:false}@property --tw-backdrop-sepia{syntax:"*";inherits:false}