@font-face{font-family:Planner;src:local('Inter'),local('Aptos'),local('Arial');font-display:swap}
:root{--bg:#f5f6f3;--paper:#fff;--ink:#20372b;--muted:#596b60;--line:#d9e1da;--green:#245e42;--soft:#eaf3ec;--error:#9a332d;--warm:#fcf6e8;--warm-ink:#755414;--radius:12px;font-family:Planner,Arial,sans-serif;color:var(--ink);background:var(--bg);font-synthesis:none;color-scheme:light}
*{box-sizing:border-box}body{margin:0;font-size:15px;line-height:1.5}button,input,select{font:inherit}button{cursor:pointer}button:disabled{cursor:not-allowed;opacity:.55}button,a,input,select,summary{touch-action:manipulation}button:focus-visible,a:focus-visible,summary:focus-visible{outline:3px solid #6d9878;outline-offset:4px}input:focus-visible,select:focus-visible{outline:2px solid var(--green);outline-offset:2px}button{color:inherit}a{color:var(--green)}[hidden]{display:none!important}h1,h2,h3,p{margin:0}h1{font-size:clamp(30px,4vw,44px);line-height:1.15;letter-spacing:-1.3px;font-weight:700}h2{font-size:20px;line-height:1.35;letter-spacing:-.35px;margin-bottom:20px}h3{font-size:14px;line-height:1.4}small{font-size:12px}.skip{position:absolute;top:10px;left:10px;z-index:10;transform:translateY(-160%);padding:10px;background:var(--paper)}.skip:focus{transform:none}.topbar{background:var(--paper);border-bottom:1px solid var(--line)}.top-inner{max-width:1256px;margin:auto;display:flex;align-items:center;gap:40px;min-height:80px;padding:16px 28px}.brand{font-weight:700;font-size:22px;text-decoration:none;color:var(--ink);white-space:normal;letter-spacing:-.7px;display:flex;align-items:center;gap:7px;min-width:0;line-height:1.25}.brand-mark{font-size:24px;white-space:nowrap;flex-shrink:0}.brand-name{min-width:0}.brand-mark span{padding:0 3px;color:#89a994}nav{display:flex;align-items:center;gap:22px}.nav-button{background:none;border:0;padding:10px 0;color:var(--muted);font-size:14px;white-space:nowrap}.nav-button.active{color:var(--green);font-weight:700;border-bottom:2px solid var(--green)}.free-label{margin-left:auto;color:var(--muted);font-size:12px;white-space:nowrap}.shell{max-width:1256px;margin:0 auto;padding:38px 28px 22px}.intro{margin-bottom:28px}.eyebrow{text-transform:uppercase;letter-spacing:1.7px;font-size:11px;line-height:1.5;font-weight:700;color:var(--green);margin-bottom:10px}.lead{color:var(--muted);font-size:17px;margin-top:13px}.mode-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px;margin-bottom:26px}.mode{background:var(--paper);border:1px solid var(--line);border-radius:9px;padding:19px 18px;text-align:left;display:flex;align-items:center;gap:13px;min-height:92px;transition:background .15s,border-color .15s}.mode:hover{border-color:#8cac96}.mode.active{background:var(--soft);border-color:var(--green);box-shadow:inset 0 0 0 1px var(--green)}.mode-number{font-size:12px;font-weight:700;color:#6b8c77;align-self:flex-start;margin-top:4px}.mode strong{display:block;font-size:16px;letter-spacing:-.15px}.mode small{display:block;margin-top:6px;font-size:12px;color:var(--muted)}.calculator-layout{display:grid;grid-template-columns:minmax(0,1.07fr) minmax(0,1fr);gap:24px;align-items:start}.panel{background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);padding:26px;min-width:0}.section-heading{display:flex;justify-content:space-between;align-items:baseline;gap:12px}.text-button{border:0;background:none;color:var(--muted);font-size:12px;padding:4px 0}.text-button:hover{color:var(--green);text-decoration:underline}.fields{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:19px 17px}.full{grid-column:1/-1}label{display:block;font-size:12px;font-weight:500;color:var(--muted);margin-bottom:7px}.unit-label{font-size:11px;font-weight:400;color:var(--muted);margin-left:4px}input[type=number],select{width:100%;height:45px;border:1px solid var(--line);border-radius:6px;background:var(--paper);color:var(--ink);padding:10px 12px;min-width:0;font-size:15px}select{font-size:13px;line-height:1.3;padding-right:22px}input[type=number]{font-variant-numeric:tabular-nums}input[type=number]::placeholder{font-size:13px;color:#7e8c83}input[aria-invalid=true]{border-color:var(--error)}.input-suffix{position:relative}.input-suffix input{padding-right:36px}.input-suffix>span{position:absolute;right:14px;top:10px;color:var(--muted)}.hint{color:var(--muted);font-size:11px;line-height:1.55;margin-top:6px}.hint strong{font-weight:700;color:var(--green)}.settings-section{border-top:1px solid var(--line);margin-top:27px;padding-top:22px}.slider-setting+.slider-setting{margin-top:22px}.slider-heading{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-bottom:5px}.slider-heading label{margin:0;font-size:13px}.slider-heading label span{margin-left:5px;color:var(--green)}.compact-number{display:flex;align-items:center;gap:6px;flex-shrink:0;color:var(--muted);font-size:13px}.compact-number input{width:78px;height:34px;font-size:14px;padding:5px 8px;text-align:right}.slider-setting input[type=range]{appearance:none;width:100%;height:6px;background:var(--line);border-radius:4px;accent-color:var(--green);margin:14px 0 5px;cursor:ew-resize}.slider-setting input[type=range]::-webkit-slider-thumb{appearance:none;background:var(--green);width:16px;height:16px;border-radius:50%}.slider-setting input[type=range]::-moz-range-thumb{background:var(--green);width:16px;height:16px;border:0;border-radius:50%}.advanced{border-top:1px solid var(--line);margin-top:21px;padding-top:16px}summary{cursor:pointer;font-size:13px;font-weight:700;line-height:1.5;padding:3px 0}.optional{font-size:10px;font-weight:400;color:var(--muted);margin-left:5px}.details-content{padding-top:17px}.section-copy{font-size:13px;color:var(--muted);line-height:1.6;margin-bottom:17px}.advanced>.details-content>label{margin-top:15px}.subdetails{margin:13px 0 17px}.subdetails summary{font-size:12px;color:var(--green);font-weight:500}.model-effect{margin-top:18px}.input-note{font-size:11px;line-height:1.55;color:var(--muted);margin-top:23px}.results-column{display:grid;gap:19px;min-width:0}.result-panel>.eyebrow{margin-bottom:12px}.result-panel h2{font-size:21px;margin-bottom:23px}.result-label{color:var(--muted);font-size:13px}.hero-value{display:flex;align-items:baseline;flex-wrap:wrap;gap:10px;margin:8px 0 16px;color:var(--green);font-variant-numeric:tabular-nums}.hero-value>span:first-child{font-size:clamp(40px,5vw,58px);font-weight:700;letter-spacing:-1.8px;line-height:1.15}.hero-value>span:last-child{font-size:16px;letter-spacing:-.1px}.equivalent{font-size:17px;letter-spacing:-.2px}.result-sub{font-size:13px;color:var(--muted);margin-top:8px}.result-copy{color:var(--muted);font-size:13px;line-height:1.6;margin-top:18px}.facts{display:grid;grid-template-columns:1fr 1fr;gap:20px;padding:22px 0;margin:24px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}.facts>div{min-width:0}.facts span{display:block;font-size:12px;color:var(--muted)}.facts strong{display:block;font-size:25px;font-variant-numeric:tabular-nums;letter-spacing:-.5px;margin-top:6px;overflow-wrap:anywhere}.facts small{display:block;color:var(--muted);margin-top:4px;font-size:11px;line-height:1.6}.relevance{background:var(--soft);border-radius:7px;padding:17px;margin-bottom:22px}.relevance p{font-size:12px;line-height:1.65;margin-top:7px}.assumptions{font-size:11px;line-height:1.6;color:var(--muted);margin-bottom:18px}.primary-button,.secondary-button{display:block;width:100%;border-radius:6px;min-height:43px;padding:10px 14px;font-size:13px;font-weight:700;line-height:1.5}.primary-button{background:var(--green);color:white;border:1px solid var(--green)}.primary-button:hover{background:#1d4c35}.secondary-button{border:1px solid var(--line);background:var(--paper);color:var(--green);margin-top:10px;font-weight:500}.secondary-button:hover{background:var(--soft)}.fineprint{font-size:11px;line-height:1.7;color:var(--muted);margin-top:16px}.warning{background:var(--warm);color:var(--warm-ink);font-size:12px;line-height:1.65;border-radius:6px;padding:12px 14px;margin:0 0 15px}.error{color:var(--error);font-size:13px;line-height:1.6;padding:15px;background:#fcf0ef;border-radius:6px;margin:14px 0}.program-metrics{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin:21px 0}.program-metrics strong{font-size:28px;color:var(--green);font-variant-numeric:tabular-nums;display:block}.program-metrics span{font-size:11px;line-height:1.6;color:var(--muted);display:block;margin-top:5px}table{width:100%;border-collapse:collapse;font-size:11px}th,td{text-align:left;padding:11px 6px;border-bottom:1px solid var(--line)}thead th{font-weight:700;color:var(--muted)}tbody th{font-weight:500}td{text-align:right;font-variant-numeric:tabular-nums}.sensitivity{padding:19px 24px}.sensitivity>summary{font-size:13px}#power-chart{display:block;width:100%;height:225px;margin-top:10px;overflow:visible}.variant-head{font-size:13px;font-weight:700;margin:22px 0 12px;color:var(--green)}.check-row{display:flex;align-items:flex-start;gap:10px;margin:23px 0 0;font-size:12px;line-height:1.6;color:var(--muted)}.check-row input{accent-color:var(--green);width:16px;height:16px;margin:3px 0 0;flex-shrink:0}.method-article{max-width:850px;padding:32px}.method-article h2{margin:28px 0 12px;font-size:19px}.method-article h2:first-child{margin-top:0}.method-article p{font-size:14px;color:var(--muted);line-height:1.8;margin-bottom:12px}.reference-list{font-size:13px;line-height:1.8;padding-left:20px}.reference-list a{overflow-wrap:anywhere}.footer{display:flex;justify-content:space-between;gap:15px;flex-wrap:wrap;font-size:11px;color:var(--muted);margin-top:29px;padding:9px 0}.dot{padding:0 7px}.toast{position:fixed;bottom:24px;left:50%;transform:translateX(-50%);max-width:calc(100% - 40px);background:var(--ink);color:white;padding:12px 20px;border-radius:8px;box-shadow:0 5px 22px #20372b22;font-size:13px;z-index:9}.noscript{padding:25px}.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap}
@media(min-width:1100px){.result-panel{padding:29px}.input-panel{padding:28px}}
@media(max-width:900px){.top-inner{gap:24px}.free-label{display:none}.mode{padding:15px 13px;gap:8px}.mode-number{display:none}.mode strong{font-size:14px}.mode small{font-size:11px}.calculator-layout{gap:18px}.panel{padding:22px}.shell{padding:30px 22px 20px}.hero-value>span:last-child{font-size:14px}}
@media(max-width:700px){.top-inner{padding:14px 20px;flex-wrap:wrap;gap:8px 25px}.brand{font-size:20px}nav{gap:20px}.nav-button{font-size:12px;min-height:40px}.shell{padding:27px 20px 18px}.lead{font-size:15px;max-width:95%}.mode-grid{grid-template-columns:1fr;gap:9px}.mode{min-height:72px;padding:13px 17px}.mode-number{display:block}.mode strong{font-size:15px}.mode small{font-size:12px;margin-top:3px}.calculator-layout{grid-template-columns:1fr}.panel{padding:24px}.hero-value>span:first-child{font-size:48px}.hero-value>span:last-child{font-size:16px}.footer{font-size:10px}.method-article{padding:25px}input[type=number],select{font-size:16px}.compact-number input{font-size:16px}.secondary-button,.primary-button{min-height:45px}.slider-setting input[type=range]{margin:20px 0 12px}.sensitivity{padding:20px 24px}}
@media(max-width:380px){.shell{padding:25px 15px 16px}.top-inner{padding:13px 15px}nav{gap:17px}.panel{padding:19px}.fields{grid-template-columns:1fr}.facts{gap:13px}.facts strong{font-size:23px}.hero-value>span:first-child{font-size:44px}.hero-value>span:last-child{font-size:14px}.program-metrics{gap:12px}.program-metrics strong{font-size:25px}summary{font-size:12px}.optional{display:block;margin-left:0}.method-article p{font-size:13px}}
@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important}}
@media print{.topbar,.mode-grid,.footer,.primary-button,.secondary-button,.text-button,.toast{display:none!important}.shell{padding:0}body{background:white}.calculator-layout{display:block}.panel{border:0;padding:12px 0}.results-column{display:block}.hero-value>span:first-child{font-size:36px}details{display:none}.input-panel{display:none}.result-panel{break-inside:avoid}}

.statistical-settings>.slider-setting{margin-top:22px}.allocation-settings{margin-top:22px}.plan-history{border-top:1px solid var(--line);margin:20px 0;padding-top:17px}.history-estimate{font-size:13px;color:var(--muted);margin:0 0 8px}.history-estimate strong{font-size:28px;color:var(--green);font-variant-numeric:tabular-nums;margin-right:6px}