.tool-page{overflow:hidden}.tool-page-hero{--tool-accent:var(--lime);background:var(--ink);color:var(--white);position:relative;overflow:hidden}.tool-page-hero-coral{--tool-accent:var(--coral)}.tool-page-hero-sky{--tool-accent:var(--sky)}.tool-page-hero-cream{--tool-accent:var(--cream)}.tool-hero-grid{opacity:.09;background-image:radial-gradient(circle,#fffc 1px,#0000 1.5px);background-size:25px 25px;position:absolute;inset:0;-webkit-mask-image:linear-gradient(#000,#0000 85%);mask-image:linear-gradient(#000,#0000 85%)}.tool-page-hero:after{border:1px solid color-mix(in srgb, var(--tool-accent) 40%, transparent);width:520px;height:520px;box-shadow:0 0 0 70px color-mix(in srgb, var(--tool-accent) 5%, transparent), 0 0 0 140px color-mix(in srgb, var(--tool-accent) 3%, transparent);content:"";border-radius:50%;position:absolute;top:50%;right:-100px;transform:translateY(-50%)}.tool-page-hero-inner{z-index:1;text-align:center;min-height:470px;padding-top:92px;padding-bottom:125px;position:relative}.tool-page-hero h1{font-size:clamp(calc(49px + var(--font-size-offset)), calc(6vw + var(--font-size-offset)), calc(76px + var(--font-size-offset)));letter-spacing:-.07em;margin-top:17px;font-weight:880;line-height:1.03}.tool-page-hero h1 em{color:var(--tool-accent);font-style:normal}.tool-page-hero p{color:#aab4ac;max-width:615px;font-size:calc(16px + var(--font-size-offset));margin:23px auto 0;line-height:1.8}.tool-hero-context{text-align:left;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px;width:min(100%,760px);margin:25px auto 0;display:grid}.tool-hero-context>div{background:#ffffff0d;border:1px solid #ffffff29;border-radius:14px;padding:13px 16px}.tool-hero-context span{color:var(--tool-accent);font-family:var(--font-mono);font-size:calc(10pt + var(--font-size-offset));letter-spacing:.04em;font-weight:800;display:block}.tool-hero-context strong{color:#e1e8e2;font-size:calc(14px + var(--font-size-offset));margin-top:5px;font-weight:600;line-height:1.55;display:block}.tool-hero-badge{color:#d4dbd5;font-size:calc(10pt + var(--font-size-offset));border:1px solid #ffffff21;border-radius:999px;align-items:center;gap:7px;margin-top:16px;padding:6px 11px;display:inline-flex}.tool-hero-badge i{background:var(--tool-accent);width:6px;height:6px;box-shadow:0 0 0 3px color-mix(in srgb, var(--tool-accent) 20%, transparent);border-radius:50%}.calculator-section{z-index:2;background:var(--paper);padding-bottom:92px;position:relative}.calculator-card{border:1px solid var(--border);background:var(--white);border-radius:26px;grid-template-columns:1.08fr .92fr;display:grid;overflow:hidden;transform:translateY(-64px);box-shadow:0 28px 80px #121b1426}.calculator-input,.calculator-result{min-width:0;padding:42px}.calculator-input{background:var(--white)}.card-heading{border-bottom:1px solid var(--border);align-items:flex-start;gap:17px;padding-bottom:27px;display:flex}.card-step{background:var(--lime);font-family:var(--font-mono);font-size:calc(10pt + var(--font-size-offset));letter-spacing:.06em;border-radius:999px;flex:none;padding:6px 9px;font-weight:900}.heart-calculator .card-step{background:var(--coral)}.interval-calculator .card-step{background:var(--sky)}.card-heading h2{font-size:calc(25px + var(--font-size-offset));letter-spacing:-.045em;font-weight:850;line-height:1.2}.card-heading p{color:var(--muted);font-size:calc(10pt + var(--font-size-offset));margin-top:5px}.control-group{border:0;margin-top:30px}.control-group legend{font-size:calc(10pt + var(--font-size-offset));margin-bottom:12px;font-weight:800}.segment-control{border:1px solid var(--border);background:var(--paper);border-radius:13px;display:grid;overflow:hidden}.segment-control button{border:0;border-right:1px solid var(--border);background:0 0;transition:background .18s,color .18s}.segment-control button:last-child{border-right:0}.segment-control button strong{font-size:calc(14px + var(--font-size-offset))}.segment-control button small{color:var(--muted);font-family:var(--font-mono);font-size:calc(10pt + var(--font-size-offset));margin-top:1px}.segment-control button:hover{background:#c9fa624d}.segment-control button.is-active{background:var(--ink);color:var(--white)}.segment-control button.is-active small{color:var(--lime)}.time-display{background:var(--paper);border-radius:15px;grid-template-columns:1fr auto 1fr auto 1fr;align-items:end;padding:14px 18px;display:grid}.time-display div{flex-direction:column;align-items:center;display:flex}.time-display small{color:var(--muted);font-family:var(--font-mono);font-size:calc(10pt + var(--font-size-offset))}.time-display strong{font-family:var(--font-mono);font-size:calc(29px + var(--font-size-offset));font-weight:600;line-height:1.2}.time-display b{color:#7c857d;font-size:calc(21px + var(--font-size-offset));padding-bottom:2px}.range-input{appearance:none;background:linear-gradient(to right, var(--lime) 0 var(--range-progress), #d9ddd4 var(--range-progress) 100%);border-radius:99px;outline:none;width:100%;height:5px;margin-top:23px}.range-coral,.range-input.range-coral{background:linear-gradient(to right, var(--coral) 0 var(--range-progress), #d9ddd4 var(--range-progress) 100%)}.range-input::-webkit-slider-thumb{appearance:none;border:4px solid var(--white);background:var(--ink);border-radius:50%;width:18px;height:18px;box-shadow:0 1px 5px #00000040}.range-input::-moz-range-thumb{border:4px solid var(--white);background:var(--ink);border-radius:50%;width:12px;height:12px;box-shadow:0 1px 5px #00000040}.range-labels{color:#899189;font-family:var(--font-mono);font-size:calc(10pt + var(--font-size-offset));justify-content:space-between;margin-top:8px;display:flex}.quick-goals{flex-wrap:wrap;gap:6px;margin-top:18px;display:flex}.quick-goals button{border:1px solid var(--border);color:#5f6861;font-size:calc(10pt + var(--font-size-offset));background:0 0;border-radius:999px;padding:7px 11px;font-weight:750}.quick-goals button:hover,.quick-goals button.is-active{border-color:var(--ink);background:var(--ink);color:var(--white)}.formula-note{background:var(--paper);color:#707970;font-size:calc(10pt + var(--font-size-offset));border-radius:10px;align-items:flex-start;gap:8px;margin-top:28px;padding:11px 13px;line-height:1.5;display:flex}.formula-note svg{flex:none;margin-top:1px}.result-heading{color:#7f8a81;font-family:var(--font-mono);font-size:calc(10pt + var(--font-size-offset));justify-content:space-between;align-items:center;gap:12px;display:flex}.main-result{text-align:center;margin-top:44px}.main-result>strong{color:var(--lime);font-family:var(--font-sans);font-size:clamp(calc(53px + var(--font-size-offset)), calc(5vw + var(--font-size-offset)), calc(72px + var(--font-size-offset)));letter-spacing:-.055em;margin-top:5px;font-weight:750;line-height:1.1;display:block}.main-result>strong em{color:#849087;font-size:calc(10pt + var(--font-size-offset));letter-spacing:0;font-style:normal}.main-result p{color:#8c978e;font-size:calc(10pt + var(--font-size-offset));margin-top:8px}.main-result p b{color:var(--white)}.result-stats{grid-template-columns:1fr 1fr;gap:8px;margin-top:27px;display:grid}.result-stats>div{background:#ffffff0a;border:1px solid #ffffff1c;border-radius:13px;flex-direction:column;padding:13px;display:flex}.result-stats strong{font-family:var(--font-mono);font-size:calc(19px + var(--font-size-offset));margin-top:3px}.result-stats em{color:#8b958d;font-size:calc(10pt + var(--font-size-offset));font-style:normal}.result-link{color:var(--lime);font-size:calc(10pt + var(--font-size-offset));align-self:flex-end;align-items:center;gap:8px;margin-top:auto;padding-top:25px;font-weight:750;display:inline-flex}.shoe-tracker>.app-demand{max-width:560px;margin:22px auto 0}.bmr-sex-control .segment-control{grid-template-columns:repeat(2,1fr)}.bmr-sex-control button{min-height:44px;font-weight:800}.bmr-control{margin-top:23px}.bmr-control-head{justify-content:space-between;align-items:flex-end;gap:15px;display:flex}.bmr-control-head>div{flex-direction:column;display:flex}.bmr-control-head label{font-size:calc(10pt + var(--font-size-offset));font-weight:800}.bmr-control-head small{color:var(--muted);font-size:calc(10pt + var(--font-size-offset));margin-top:2px}.bmr-control output{font-family:var(--font-mono);font-size:calc(24px + var(--font-size-offset));font-weight:750;line-height:1}.bmr-control output em{color:var(--muted);font-size:calc(10pt + var(--font-size-offset));margin-left:3px;font-style:normal}.bmr-control .range-input{margin-top:17px}.bmr-weekly-control{border-top:1px solid var(--border);margin-top:25px}.bmr-result{background:var(--ink);color:var(--white)}.bmr-main-result{text-align:center;margin-top:30px}.bmr-main-result>small{color:#97a198}.bmr-main-result>strong{color:var(--lime);font-family:var(--font-mono);font-size:clamp(calc(46px + var(--font-size-offset)), calc(4.5vw + var(--font-size-offset)), calc(64px + var(--font-size-offset)));letter-spacing:-.07em;margin-top:5px;font-weight:550;line-height:1.1;display:block}.bmr-main-result>strong em{color:#9ba49d;font-size:calc(10pt + var(--font-size-offset));letter-spacing:0;margin-left:7px;font-style:normal}.bmr-main-result p{color:#9ba49d;font-size:calc(10pt + var(--font-size-offset));margin-top:8px}.bmr-running-summary{grid-template-columns:1fr 1fr;gap:8px;margin-top:25px;display:grid}.bmr-running-summary>div{background:#ffffff0a;border:1px solid #ffffff1f;border-radius:13px;flex-direction:column;min-width:0;padding:13px;display:flex}.bmr-running-summary small{color:#97a198;font-size:calc(10pt + var(--font-size-offset))}.bmr-running-summary strong{font-family:var(--font-mono);font-size:calc(16px + var(--font-size-offset));margin-top:4px}.bmr-running-summary em{color:#98a299;font-size:calc(10pt + var(--font-size-offset));font-style:normal}.bmr-table-wrap{margin-top:26px}.bmr-table{border-collapse:collapse;width:100%}.bmr-table th,.bmr-table td{text-align:right;border-bottom:1px solid #ffffff1a;padding:10px 5px}.bmr-table th:first-child{text-align:left}.bmr-table thead th{color:#a5afa7;font-size:calc(10pt + var(--font-size-offset));font-weight:600}.bmr-table tbody th,.bmr-table tbody td{color:#d7ddd8;font-family:var(--font-mono);font-size:calc(10pt + var(--font-size-offset))}.bmr-table tbody td:last-child{color:var(--lime)}.bmr-clarification{color:#aab5ac;font-size:calc(10pt + var(--font-size-offset));background:#c9fa6217;border-radius:13px;align-items:flex-start;gap:10px;margin-top:22px;padding:13px;line-height:1.55;display:flex}.bmr-clarification svg{color:var(--lime);flex:none;margin-top:2px}.bmr-clarification strong{color:var(--white);display:block}.heart-control{margin-top:28px}.heart-control-head{justify-content:space-between;align-items:flex-end;gap:15px;display:flex}.heart-control-head>div{flex-direction:column;display:flex}.heart-control-head label{font-size:calc(10pt + var(--font-size-offset));font-weight:800}.heart-control-head small{color:var(--muted);font-size:calc(10pt + var(--font-size-offset));margin-top:2px}.heart-control output{font-family:var(--font-mono);font-size:calc(28px + var(--font-size-offset));font-weight:750;line-height:1}.heart-control output em{color:var(--muted);font-size:calc(10pt + var(--font-size-offset));margin-left:3px;font-style:normal}.heart-control .range-lime{background:linear-gradient(to right, var(--lime) 0 var(--range-progress), #d9ddd4 var(--range-progress) 100%)}.heart-control .range-coral{background:linear-gradient(to right, var(--coral) 0 var(--range-progress), #d9ddd4 var(--range-progress) 100%)}.max-heart-header{border-top:1px solid var(--border);font-size:calc(10pt + var(--font-size-offset));justify-content:space-between;align-items:center;margin-top:30px;padding-top:25px;font-weight:800;display:flex}.age-estimator>.heart-control{margin-top:18px}.heart-result{background:#e8e6dd}.heart-result .live-pill{color:#963c37}.heart-result .live-pill i{background:var(--coral);box-shadow:0 0 0 3px #ff80772e}.zone-list{gap:7px;margin-top:29px;display:grid}.zone-row{--zone-color:var(--lime);background:#ffffff94;border:1px solid #1720191f;border-radius:12px;grid-template-columns:38px 1fr auto;align-items:center;gap:12px;padding:12px;display:grid}.zone-mint{--zone-color:#bbdfc3}.zone-sky{--zone-color:var(--sky)}.zone-lime{--zone-color:var(--lime)}.zone-orange{--zone-color:#f7b76b}.zone-coral{--zone-color:var(--coral)}.zone-number{background:var(--zone-color);width:34px;height:34px;font-family:var(--font-mono);font-size:calc(10pt + var(--font-size-offset));border-radius:9px;place-items:center;font-weight:900;display:grid}.zone-copy{flex-direction:column;min-width:0;display:flex}.zone-copy small{color:var(--muted);font-size:calc(10pt + var(--font-size-offset));text-overflow:ellipsis;white-space:nowrap;overflow:hidden}.zone-range{flex-direction:column;align-items:flex-end;display:flex}.zone-range strong{font-family:var(--font-mono);font-size:calc(15px + var(--font-size-offset))}.zone-range small{color:var(--muted);font-family:var(--font-mono);font-size:calc(10pt + var(--font-size-offset))}.interval-result .result-heading>span:last-child{font-family:var(--font-sans);font-weight:650}.workout-builder{border-top:1px solid var(--border);padding-top:25px}.workout-builder legend{width:100%}.workout-builder legend small{color:var(--muted);font-size:calc(10pt + var(--font-size-offset));margin-left:6px;font-weight:500}.builder-row{gap:19px;display:grid}.builder-row>div>label{color:var(--muted);font-size:calc(10pt + var(--font-size-offset));justify-content:space-between;align-items:center;margin-bottom:8px;display:flex}.builder-row output{color:var(--ink);font-family:var(--font-mono);font-weight:800}.builder-row .range-input{margin-top:5px}.interval-table-wrap{margin-top:27px}.interval-table{border-collapse:collapse;width:100%}.interval-table th,.interval-table td{text-align:right;border-bottom:1px solid #ffffff1a;padding:11px 6px}.interval-table thead th{color:#78847b;font-size:calc(10pt + var(--font-size-offset));font-weight:600}.interval-table thead th:first-child{text-align:left}.interval-table tbody th{color:#a6b0a8;font-family:var(--font-mono);font-size:calc(10pt + var(--font-size-offset));text-align:left}.interval-table tbody td{color:#d7ddd8;font-family:var(--font-mono);font-size:calc(10pt + var(--font-size-offset))}.interval-table tbody tr.is-selected{background:#9eddf314}.interval-table tbody tr.is-selected th,.interval-table tbody tr.is-selected td:nth-child(2){color:var(--sky);font-weight:800}.workout-summary{background:#9eddf312;border:1px solid #9eddf34d;border-radius:14px;grid-template-columns:43px 1fr auto;align-items:center;gap:12px;margin-top:25px;padding:14px;display:grid}.workout-summary-icon{background:var(--sky);width:41px;height:41px;color:var(--ink);border-radius:11px;place-items:center;display:grid}.workout-summary-copy{flex-direction:column;display:flex}.workout-total{flex-direction:column;align-items:flex-end;display:flex}.workout-total strong{color:var(--sky);font-family:var(--font-mono);font-size:calc(15px + var(--font-size-offset))}.shoe-tracker{transform:translateY(-64px)}.shoe-form{border:1px solid var(--border);background:var(--white);box-shadow:var(--shadow);border-radius:20px;margin-top:13px;padding:28px}.shoe-form-heading{border-bottom:1px solid var(--border);align-items:center;gap:13px;padding-bottom:20px;display:flex}.shoe-form-icon{background:var(--cream);border-radius:12px;place-items:center;width:44px;height:44px;display:grid}.shoe-form-heading h2{font-size:calc(18px + var(--font-size-offset))}.shoe-form-heading p{color:var(--muted);font-size:calc(10pt + var(--font-size-offset))}.shoe-form-grid{grid-template-columns:1.4fr 1fr 1fr 1fr;gap:12px;margin-top:22px;display:grid}.field{flex-direction:column;gap:7px;display:flex}.field>span{font-size:calc(10pt + var(--font-size-offset));font-weight:750}.field input,.field select{border:1px solid var(--border);background:var(--paper);width:100%;height:43px;font-size:calc(10pt + var(--font-size-offset));border-radius:10px;outline:0;padding:0 12px}.field input:focus,.field select:focus,.mileage-log input:focus{border-color:var(--ink);box-shadow:0 0 0 3px #c9fa6259}.field-with-unit{position:relative}.field-with-unit input{padding-right:42px}.field-with-unit em{color:var(--muted);font-family:var(--font-mono);font-size:calc(10pt + var(--font-size-offset));font-style:normal;position:absolute;top:50%;right:12px;transform:translateY(-50%)}.shoe-form-actions{justify-content:flex-end;gap:7px;margin-top:20px;display:flex}.shoe-form-actions button{border:1px solid var(--border);min-width:90px;min-height:39px;font-size:calc(10pt + var(--font-size-offset));background:0 0;border-radius:999px;font-weight:800}.shoe-form-actions button[type=submit]{border-color:var(--ink);background:var(--ink);color:var(--white)}.shoe-list{grid-template-columns:repeat(2,1fr);gap:13px;margin-top:13px;display:grid}.shoe-card{border:1px solid var(--border);background:var(--white);border-radius:20px;padding:23px;box-shadow:0 12px 35px #121b140f}.shoe-card-head{grid-template-columns:52px 1fr 30px;align-items:center;gap:12px;display:grid}.shoe-visual{background:var(--cream);border-radius:14px;place-items:center;width:50px;height:50px;display:grid}.shoe-title span{color:var(--muted);font-family:var(--font-mono);font-size:calc(10pt + var(--font-size-offset));letter-spacing:.08em}.shoe-title h2{font-size:calc(16px + var(--font-size-offset));text-overflow:ellipsis;white-space:nowrap;margin-top:2px;overflow:hidden}.mileage-overview{justify-content:space-between;align-items:flex-end;margin-top:25px;display:flex}.mileage-overview>div{flex-direction:column;display:flex}.mileage-overview small{color:var(--muted);font-size:calc(10pt + var(--font-size-offset))}.mileage-overview strong{font-family:var(--font-mono);font-size:calc(27px + var(--font-size-offset))}.mileage-overview em{color:var(--muted);font-size:calc(10pt + var(--font-size-offset));margin-left:3px;font-style:normal}.mileage-track{background:#e0e2da;border-radius:99px;height:9px;margin-top:14px;overflow:hidden}.mileage-track span{border-radius:inherit;background:linear-gradient(90deg, var(--lime-deep), var(--lime));height:100%;display:block}.mileage-labels{color:var(--muted);font-family:var(--font-mono);font-size:calc(10pt + var(--font-size-offset));grid-template-columns:1fr 1fr 1fr;margin-top:6px;display:grid}.mileage-labels span:nth-child(2){text-align:center}.mileage-labels span:last-child{text-align:right}.mileage-log{border-top:1px solid var(--border);margin-top:23px;padding-top:18px}.mileage-log>label{font-size:calc(10pt + var(--font-size-offset));font-weight:800}.mileage-log-row{grid-template-columns:1fr 66px;gap:7px;margin-top:8px;display:grid}.mileage-log-row input{border:1px solid var(--border);background:var(--paper);width:100%;height:40px;font-size:calc(10pt + var(--font-size-offset));border-radius:9px;outline:0;padding:0 12px}.mileage-log-row>button{background:var(--ink);color:var(--white);font-size:calc(10pt + var(--font-size-offset));border:0;border-radius:9px;font-weight:800}.pace-page__article>.content-ad,.tool-page>.content-ad{margin-top:56px}@media (max-width:900px){.calculator-card{grid-template-columns:1fr}.calculator-input,.calculator-result{padding:38px}.heart-result{min-height:auto}.shoe-form-grid{grid-template-columns:repeat(2,1fr)}.shoe-list{grid-template-columns:1fr}}@media (max-width:720px){.tool-page-hero-inner{min-height:410px;padding-top:70px;padding-bottom:108px}.tool-page-hero:after{width:450px;height:450px;right:-250px}.tool-page-hero h1{font-size:calc(47px + var(--font-size-offset))}.tool-page-hero p{font-size:calc(15px + 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