@font-face{font-family:SolarSans;src:local('Inter'),local('Arial');font-display:swap}
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*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:100px}body{margin:0;background:var(--bg);color:var(--ink);font:16px/1.65 SolarSans,Arial,sans-serif}a{color:var(--green);text-underline-offset:4px}a:hover{color:#034630}button,input,select,textarea{font:inherit}button,a,input,select,summary{touch-action:manipulation}button{cursor:pointer}a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,summary:focus-visible{outline:3px solid #398eca;outline-offset:4px}button:disabled{cursor:not-allowed}h1,h2,h3,h4{line-height:1.2;letter-spacing:-.025em}h1{font-size:clamp(2rem,4vw,3.35rem);margin:12px 0 18px;max-width:850px}h2{font-size:clamp(1.5rem,2.5vw,2rem);margin:42px 0 16px}h3{font-size:1.2rem;margin:24px 0 10px}p{margin:0 0 18px}ul,ol{padding-left:24px}li{margin:9px 0}strong{font-weight:700}.wrap{max-width:1200px;margin:auto;padding:0 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1fr;gap:22px 18px;margin-bottom:25px}.result-item .value{font-size:1.35rem;font-weight:700;line-height:1.25}.result-item .label{color:#b9cddc;font-size:.77rem;margin-top:5px}.chart{margin:25px 0 10px}.chart svg{width:100%;height:auto;display:block}.chart .axis{font-size:12px;fill:#a9c0d2}.chart-key{font-size:.74rem;display:flex;gap:18px;color:#a9c0d2}.chart-key span:before{content:'';display:inline-block;width:9px;height:9px;background:var(--bright);border-radius:2px;margin-right:7px}.scenario-row{display:grid;grid-template-columns:repeat(3,1fr);gap:8px;margin:15px 0}.scenario-row div{border:1px solid #ffffff26;border-radius:8px;padding:10px}.scenario-row strong{display:block;font-size:.94rem}.scenario-row span{font-size:.7rem;color:#a9c0d2}.section-head{display:flex;justify-content:space-between;align-items:end;gap:25px;margin-top:45px}.section-head h2{margin:0}.section-head p{margin:8px 0 0;color:var(--muted);max-width:660px}.section-head 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var(--line);border-radius:10px;color:var(--ink);text-decoration:none;font-size:.85rem;font-weight:650}.state-link small{display:block;color:var(--muted);font-size:.7rem;font-weight:400}.state-link:hover{border-color:var(--green)}.callout{background:#e9f3ee;border-left:3px solid var(--green);border-radius:0 10px 10px 0;padding:20px 24px;margin:26px 0;font-size:.94rem}.callout p:last-child{margin-bottom:0}.article-layout{display:grid;grid-template-columns:minmax(0,800px) minmax(220px,1fr);gap:36px;margin:25px 0 60px}.article{background:#fff;border:1px solid var(--line);border-radius:16px;padding:32px 38px;min-width:0}.article>h2:first-child{margin-top:0}.article p,.article li{color:#374c61}.sidebar{align-self:start;position:sticky;top:110px}.side-card{background:white;border:1px solid var(--line);border-radius:14px;padding:22px;margin-bottom:18px}.side-card h3{margin:0 0 15px;font-size:1rem}.side-card a{display:block;font-size:.88rem;padding:7px 0}.side-card p{font-size:.85rem;color:var(--muted)}.side-card .button{color:#fff;padding:10px}.table-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:10px;margin:22px 0}table{border-collapse:collapse;width:100%;font-size:.86rem}th{text-align:left;color:var(--navy);background:var(--bg);font-weight:700}th,td{padding:13px 16px;border-bottom:1px solid var(--line);vertical-align:top}tr:last-child td{border:0}td:first-child{font-weight:600}.faq details{border-bottom:1px solid var(--line);padding:16px 0}.faq summary{font-weight:650;cursor:pointer;line-height:1.5}.faq details p{margin:14px 0 0;color:var(--muted)}.source-list{font-size:.85rem;color:var(--muted)}.source-list li{margin:12px 0}.tag{display:inline-block;background:#e8eff5;color:var(--navy);border-radius:5px;padding:3px 8px;font-size:.72rem;white-space:nowrap}.stats{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin:24px 0}.stat{background:var(--navy);color:white;border-radius:12px;padding:20px}.stat strong{font-size:1.7rem;display:block}.stat span{font-size:.8rem;color:#bad0df}.formula{padding:16px;background:var(--bg);border-radius:8px;overflow-wrap:anywhere;font-family:monospace;font-size:.88rem}.site-footer{margin-top:70px;background:var(--navy);color:#bad0df;padding:45px 0 0}.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:35px}.site-footer .logo{color:#fff}.site-footer .logo span{color:var(--bright)}.site-footer p{font-size:.85rem;margin-top:16px}.site-footer h3{font-size:.9rem;color:#fff;margin:5px 0 16px}.site-footer a:not(.logo){display:block;color:#bad0df;text-decoration:none;font-size:.81rem;margin-bottom:9px}.site-footer a:hover{color:white}.footer-bottom{border-top:1px solid #ffffff20;margin-top:35px;padding-top:20px;padding-bottom:22px;font-size:.75rem;display:flex;justify-content:space-between;gap:20px}.footer-bottom p{margin:0;max-width:700px;font-size:.75rem}.battery-checks{display:grid;grid-template-columns:1fr 1fr;gap:10px}.battery-checks label{display:flex;align-items:center;gap:12px;border:1px solid var(--line);padding:13px;border-radius:8px;font-size:.85rem;cursor:pointer}.battery-checks input{accent-color:var(--green)}.battery-output{background:var(--navy);color:#fff;padding:24px;border-radius:12px;margin-top:22px}.battery-output strong{font-size:1.8rem;color:var(--bright)}.battery-output p{margin:8px 0;color:#c7d7e2}.checklist label{display:flex;align-items:start;gap:12px;padding:17px 0;border-bottom:1px solid var(--line);font-size:1rem;font-weight:400}.checklist input{margin-top:7px;accent-color:var(--green);width:18px;height:18px}.progress{font-size:.85rem;color:var(--green);font-weight:700}.not-found{min-height:45vh;padding:70px 0}[hidden]{display:none!important}
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@media(max-width:760px){.header-inner{min-height:70px;flex-wrap:wrap;gap:0}.menu-toggle{display:block}.nav-links{display:none;width:100%;align-items:stretch;padding:16px 0 22px;gap:12px;flex-direction:column}.nav-links.open{display:flex}.nav-links>a{padding:7px 0}.nav-links .nav-cta{text-align:center;padding:10px}.nav-links details>div{position:static;width:100%;margin-top:8px;box-shadow:none}.calculator{grid-template-columns:1fr}.hero{padding-top:25px}.hero h1{font-size:2.35rem}.calc-results{min-height:420px}.article-layout{grid-template-columns:1fr}.sidebar{position:static;display:grid;grid-template-columns:1fr 1fr;gap:15px}.cards{grid-template-columns:1fr}.state-grid{grid-template-columns:repeat(3,1fr)}.footer-grid{grid-template-columns:1fr 1fr;gap:25px}.footer-brand{grid-column:1/-1}.section-head{display:block}.section-head>a{display:inline-block;margin-top:12px}.wrap{padding:0 18px}.article{padding:23px}.footer-bottom{display:block}.footer-bottom span{display:block;margin-top:12px}.stats{gap:10px}.stat{padding:15px}.stat strong{font-size:1.4rem}}
@media(max-width:430px){.state-grid{grid-template-columns:1fr 1fr}.fields{gap:12px}.calc-input,.calc-results{padding:22px 18px}.hero h1{font-size:2rem}.trust-row{gap:10px 18px}.sidebar{grid-template-columns:1fr}.battery-checks{grid-template-columns:1fr}.article{padding:20px}.stats{grid-template-columns:1fr}.scenario-row strong{font-size:.85rem}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition:none!important}}

.logo{gap:10px;font-size:1rem;letter-spacing:-.025em;flex-shrink:0}.logo svg{width:38px;height:38px;color:var(--green);flex-shrink:0}.brand-name{display:flex;flex-direction:column;line-height:1.12}.brand-name strong{font-size:1.06rem;color:var(--navy);font-weight:800}.brand-name>span{font-size:.86rem;letter-spacing:.02em;margin-top:3px}.site-footer .brand-name strong{color:#fff}.site-footer .logo svg{color:#65b58d}