@charset "UTF-8";
:root{--ink:#102a40;--deep:#0b2036;--lime:#d4fb4b;--paper:#fff;--mist:#f0f4f6;--muted:#516577;--line:#d4dfe6;--max:1180px;color-scheme:light;font-family:Inter,"Segoe UI",Arial,sans-serif;color:var(--ink);background:var(--paper);font-synthesis:none}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:2rem}body{margin:0;font-size:1.0625rem;line-height:1.65}a{color:inherit;text-underline-offset:.23em}a:hover{text-decoration-thickness:2px}a:focus-visible,summary:focus-visible{outline:3px solid #227fa1;outline-offset:5px}img{display:block;max-width:100%;height:auto}h1,h2,h3,p,figure,dl{margin:0}h1,h2,h3{line-height:1.12;letter-spacing:-.035em}h1{font-size:clamp(2.6rem,5.8vw,5.25rem);font-weight:800}h2{font-size:clamp(2rem,3.9vw,3.15rem);font-weight:750}h3{font-size:1.35rem}p+p{margin-top:1rem}.wrap{width:min(var(--max),calc(100% - 3rem));margin-inline:auto}.skip{position:absolute;top:-100px;left:1rem;padding:.7rem 1rem;background:var(--lime);z-index:100}.skip:focus{top:1rem}.site-header{border-bottom:1px solid var(--line)}.header-inner{min-height:95px;display:flex;align-items:center;justify-content:space-between;gap:2rem}.brand{display:flex;align-items:center;gap:.75rem;font-weight:850;letter-spacing:-.03em;text-decoration:none;font-size:1.25rem;line-height:1.1}.brand-mark{width:38px;height:38px;display:grid;place-items:center;background:var(--ink);color:var(--lime);font-size:1.5rem;border-radius:8px}.brand small{display:block;font-size:.75rem;font-weight:550;letter-spacing:.09em;margin-top:.35rem}.nav{display:flex;align-items:center;gap:1.9rem;flex-wrap:wrap;font-size:.9375rem;font-weight:650}.nav a{text-decoration:none}.nav a[aria-current=page]{text-decoration:underline}.nav .nav-cta{border:1px solid var(--ink);padding:.5rem .9rem;border-radius:4px}.hero{padding:6rem 0 4.6rem}.hero-grid{display:grid;grid-template-columns:1.25fr .8fr;gap:5rem;align-items:center}.eyebrow{text-transform:uppercase;letter-spacing:.14em;font-size:.8125rem;font-weight:750;display:block;margin-bottom:1.3rem}.eyebrow::before{content:"";display:inline-block;width:30px;height:3px;background:var(--lime);vertical-align:middle;margin-right:.7rem}.hero h1{max-width:770px}.hero h1 em{font-style:normal;display:inline;box-shadow:inset 0 -.2em var(--lime)}.lead{font-size:1.2rem;line-height:1.7;color:var(--muted);max-width:650px;margin-top:1.8rem}.actions{display:flex;flex-wrap:wrap;gap:1rem;align-items:center;margin-top:2rem}.btn{display:inline-flex;align-items:center;justify-content:center;padding:.85rem 1.3rem;min-height:48px;border:1px solid var(--ink);background:var(--ink);color:white;text-decoration:none;border-radius:4px;font-size:1rem;font-weight:700;line-height:1.4}.btn:hover{background:#1b405f}.btn.lime{background:var(--lime);color:var(--deep);border-color:var(--lime)}.btn.lime:hover{background:#c4ee31}.btn.outline{background:transparent;color:var(--ink)}.hero-note{margin-top:1rem;color:var(--muted);font-size:.875rem}.feature{background:var(--deep);color:white;padding:2.2rem;border-radius:5px;box-shadow:12px 12px 0 var(--lime)}.feature .eyebrow{color:#c1d1dc}.feature h2{font-size:2rem}.feature p{color:#cedae4;margin-top:1rem}.feature-list{list-style:none;padding:0;margin:1.8rem 0 0;counter-reset:st}.feature-list li{display:flex;gap:1rem;padding:.95rem 0;border-top:1px solid #3a4c60}.feature-list li::before{counter-increment:st;content:"0" counter(st);font-size:.875rem;font-weight:750;color:var(--lime)}.topic-strip{border-top:1px solid var(--line);border-bottom:1px solid var(--line)}.topics{display:grid;grid-template-columns:repeat(3,1fr);gap:2rem;padding-block:1.5rem}.topics span{font-size:.875rem;color:var(--muted)}.topics strong{display:block;font-size:1.15rem}.section{padding:5.5rem 0}.section-head{display:flex;justify-content:space-between;align-items:flex-end;gap:3rem;margin-bottom:2.8rem}.section-head p{max-width:440px;color:var(--muted)}.resource{display:grid;grid-template-columns:1fr 1fr;background:var(--mist);border-radius:5px;overflow:hidden}.resource-text{padding:3rem}.resource-text h3{font-size:2rem}.resource-text p{margin-top:1rem;color:var(--muted)}.sheet{margin:2rem;background:white;padding:1.6rem 1.8rem;box-shadow:0 10px 30px #0b203611;border:1px solid var(--line);transform:rotate(-2deg)}.sheet-head{font-size:.75rem;letter-spacing:.1em;font-weight:800;border-bottom:3px solid var(--ink);padding-bottom:.7rem}.sheet dl>div{display:flex;justify-content:space-between;gap:1rem;padding:1.1rem 0;border-bottom:1px solid var(--line)}.sheet dt{font-weight:700}.sheet dd{color:var(--muted);font-size:.875rem;margin:0;text-align:right}.sheet-foot{font-size:.875rem;margin-top:1.2rem}.community{background:var(--ink);color:white}.community .lead{color:#c8d6e1}.community-grid{display:grid;grid-template-columns:.92fr 1fr;align-items:center;gap:6rem}.community figure{max-width:420px}.community img{border-radius:5px;border:1px solid #344960}.community figcaption{color:#bccbd7;font-size:.8125rem;margin-top:.7rem}.community h2{font-size:clamp(2.2rem,4vw,3.5rem)}.community p{color:#cedae4;margin-top:1.4rem}.community .group-name{border-left:3px solid var(--lime);padding-left:1.2rem;margin-top:1.8rem;font-size:1.1rem;color:white;font-weight:650}.about-grid{display:grid;grid-template-columns:1fr 1.1fr;gap:5rem}.about-grid p{color:var(--muted)}.facts{display:flex;gap:1rem;margin-top:2rem;flex-wrap:wrap}.fact{border:1px solid var(--line);padding:1rem 1.25rem;flex:1}.fact strong{display:block;font-size:1.45rem;line-height:1.3}.fact span{font-size:.875rem;color:var(--muted)}.small-note{font-size:.875rem;color:var(--muted);margin-top:1rem}.faq{border-top:1px solid var(--line)}details{border-bottom:1px solid var(--line);padding:1.2rem 0}summary{cursor:pointer;font-weight:700;font-size:1.05rem}details p{padding:1rem 1.5rem 0 0;color:var(--muted);max-width:750px}.footer{border-top:1px solid var(--line);padding:2.5rem 0}.footer-inner{display:flex;justify-content:space-between;gap:2rem;font-size:.875rem;color:var(--muted)}.footer nav{display:flex;flex-wrap:wrap;gap:1.3rem}.article-head{padding:3rem 0 3.2rem;background:var(--mist)}.breadcrumb{font-size:.875rem;margin-bottom:2rem;color:var(--muted)}.article-head h1{max-width:920px;font-size:clamp(2.6rem,5vw,4.6rem)}.article-meta{font-size:.875rem;color:var(--muted);margin-top:1.4rem}.article-grid{display:grid;grid-template-columns:minmax(0,1fr) 275px;gap:4rem;align-items:start}.article-body h2{font-size:2rem;margin-bottom:1.3rem}.article-body section+section{margin-top:3rem}.article-body p{color:#354f62}.aside{position:sticky;top:2rem;background:var(--ink);padding:1.7rem;color:white;border-radius:4px}.aside h2{font-size:1.45rem}.aside p{font-size:.9375rem;color:#cedae4;margin-top:1rem}.aside .btn{width:100%;margin-top:1.3rem}.checklist{margin:1.7rem 0 0;padding:0;list-style:none;counter-reset:guide}.checklist li{counter-increment:guide;display:grid;grid-template-columns:40px 1fr;gap:1rem;border-top:1px solid var(--line);padding:1.4rem 0}.checklist li::before{content:counter(guide,decimal-leading-zero);font-weight:800;font-size:1.05rem}.checklist h3{font-size:1.2rem;letter-spacing:-.02em;line-height:1.4}.checklist p{margin-top:.4rem}.formula{background:var(--mist);border-left:4px solid var(--lime);padding:1.5rem;margin:1.5rem 0}.formula strong{font-size:1.2rem;display:block}.formula p{font-size:.9375rem;margin-top:.7rem}.inline-cta{padding:2rem;background:var(--mist);margin-top:3rem}.inline-cta h2{font-size:1.7rem}.inline-cta p{margin-top:1rem}.not-found{min-height:65vh;display:grid;align-content:center;gap:2rem}
@media(max-width:900px){.hero{padding:3.5rem 0}.hero-grid{gap:2.7rem;grid-template-columns:1.15fr .85fr}.hero h1{font-size:3.4rem}.feature{padding:1.6rem}.feature h2{font-size:1.5rem}.community-grid{gap:3rem}.about-grid{gap:2.5rem}.resource-text{padding:2rem}.sheet{margin:1.6rem}.article-grid{grid-template-columns:1fr;gap:2rem}.aside{position:static;max-width:520px}.section-head{display:block}.section-head p{margin-top:1.3rem}.nav{gap:1rem}}
@media(max-width:650px){.wrap{width:calc(100% - 2rem)}.header-inner{min-height:100px;align-items:flex-start;flex-direction:column;justify-content:center;padding:1rem 0;gap:1rem}.brand{font-size:1.125rem}.brand small{font-size:.75rem}.nav{gap:1.2rem;font-size:.875rem;width:100%}.nav .nav-cta{margin-left:auto;padding:.35rem .6rem}.hero-grid,.resource,.community-grid,.about-grid{grid-template-columns:1fr}.hero{padding:2.8rem 0 3rem}.hero h1{font-size:clamp(2.5rem,10vw,3.5rem)}.lead{font-size:1.1rem}.feature{margin-right:10px;box-shadow:8px 8px 0 var(--lime)}.topics{gap:.8rem;padding-block:1.3rem}.topics strong{font-size:.95rem;line-height:1.35}.topics span{font-size:.75rem;line-height:1.3;display:block;margin-top:.3rem}.section{padding:3.3rem 0}.resource-text{padding:1.7rem}.sheet{margin:0 1.7rem 2rem;transform:rotate(-1deg)}.sheet dl>div{padding:.8rem 0}.sheet dt{font-size:.875rem}.sheet dd{font-size:.8125rem}.community-grid{gap:2.5rem}.community figure{max-width:360px;order:2;margin:auto}.community h2{font-size:2.7rem}.about-grid{gap:1.5rem}.footer-inner{flex-direction:column;gap:1.3rem}.article-head{padding:2rem 0 2.5rem}.article-head h1{font-size:2.8rem}.article-body h2{font-size:1.8rem}.checklist li{gap:.5rem;grid-template-columns:32px 1fr}.actions{gap:.8rem}.actions .btn{flex-grow:1}.inline-cta{padding:1.5rem}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}@media print{.site-header,.footer,.aside,.actions,.skip,.community{display:none}.wrap{width:100%}.article-grid{display:block}.section,.article-head{padding:1rem 0}body{font-size:11pt}.checklist li{break-inside:avoid}}
/* Full editorial site, extends the original Casa Full-Electric palette. */
.header-inner{gap:1.5rem;flex-wrap:wrap;padding-block:1.1rem}.nav{gap:1.2rem;font-size:.9rem}.brand{flex-shrink:0}.hero{padding:4.5rem 0}.hero-grid{grid-template-columns:1.25fr .85fr;gap:4rem}.hero h1{font-size:clamp(3rem,5.2vw,4.75rem)}.hero .lead{max-width:620px}.feature-list a{text-decoration:none}.feature-list a:hover{text-decoration:underline}.section-tint{background:var(--mist)}.flush{margin-top:0}.card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:1.4rem}.topic-card{display:flex;flex-direction:column;border:1px solid var(--line);padding:2rem;text-decoration:none;transition:background .15s,border-color .15s;min-height:300px}.topic-card:hover{border-color:var(--ink);background:var(--mist)}.topic-card .eyebrow{font-size:.875rem;letter-spacing:.08em}.topic-card .eyebrow::before{display:none}.topic-card h3{font-size:1.9rem;line-height:1.15}.topic-card p{color:var(--muted);margin-top:1rem}.card-link{display:block;margin-top:auto;padding-top:1.8rem;font-weight:750;text-decoration:underline;text-underline-offset:.25em}.guide-list>a{display:grid;grid-template-columns:55px 1fr auto;gap:1.7rem;align-items:center;text-decoration:none;border-top:1px solid #c6d3dd;padding:2rem 0}.guide-list>a:last-child{border-bottom:1px solid #c6d3dd}.guide-list .eyebrow{margin-bottom:.75rem;font-size:.875rem}.guide-list .eyebrow::before{display:none}.guide-number{font-size:1.5rem;font-weight:800;color:var(--muted)}.guide-list h3{font-size:1.7rem}.guide-list p{color:var(--muted);margin-top:.65rem}.link-label{font-weight:750;text-decoration:underline}.footer-grid{display:grid;grid-template-columns:1.7fr 1fr 1fr;gap:3rem}.footer-grid p{font-size:.9375rem;margin-top:1rem}.footer-grid nav{display:flex;flex-direction:column;gap:.5rem;font-size:.9375rem}.footer-grid nav strong{color:var(--ink);margin-bottom:.4rem}.footer-bottom{display:flex;justify-content:space-between;gap:1rem;border-top:1px solid var(--line);padding-top:1.5rem;margin-top:2rem;font-size:.875rem;color:var(--muted)}.article-head h1{font-size:clamp(2.5rem,4.8vw,4.25rem);max-width:1050px}.article-head .lead{max-width:820px}.article-sidebar{position:sticky;top:1.5rem}.toc{display:flex;flex-direction:column;gap:.9rem;font-size:.9375rem;margin-bottom:2rem}.toc .eyebrow{margin-bottom:0}.toc a{text-decoration:none;border-left:2px solid var(--line);padding-left:1rem}.toc a:hover{border-color:var(--ink);text-decoration:underline}.aside{position:static}.aside .btn{font-size:.9375rem}.article-body h2{line-height:1.2;letter-spacing:-.025em}.article-body section{scroll-margin-top:2rem}.article-body p{line-height:1.8}.article-body p+p{margin-top:1rem}.points{padding-left:1.3rem;margin:1.25rem 0}.points li{padding-left:.3rem;margin:.8rem 0}.formula{overflow-wrap:anywhere}.formula .eyebrow{font-size:.8125rem;margin-bottom:.7rem}.formula strong.inline{display:inline;font-size:inherit}.definition-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1rem;margin:1.5rem 0}.definition-grid>div{padding:1.3rem;background:var(--mist);border-top:3px solid var(--ink)}.definition-grid strong{font-size:1.8rem}.definition-grid p{font-size:.9375rem;margin-top:.5rem;line-height:1.6}.data-row{display:grid;grid-template-columns:repeat(3,1fr);gap:1rem;margin:1.5rem 0}.data-row>div{border-top:3px solid var(--lime);background:var(--mist);padding:1.2rem}.data-row strong{display:block;font-size:1.45rem}.data-row span{font-size:.875rem}.spec-list{border-top:1px solid var(--line);margin:1.5rem 0}.spec-list>div{display:grid;grid-template-columns:1fr 1.5fr;gap:1rem;padding:1rem 0;border-bottom:1px solid var(--line)}.spec-list dt{font-weight:700}.spec-list dd{margin:0}.source-note{border-top:1px solid var(--line);padding-top:1.5rem;margin-top:2rem}.join-band{padding:3.5rem 0;background:var(--ink);color:white}.join-inner{display:grid;grid-template-columns:1fr 310px;gap:4rem;align-items:center}.join-band h2{font-size:clamp(1.8rem,3vw,2.5rem)}.join-band p{color:#cedae4;margin-top:1rem;max-width:750px}.join-actions{display:flex;flex-direction:column;gap:1rem;align-items:flex-start}.join-actions>a:not(.btn){font-size:.9375rem}.channel-grid{display:grid;grid-template-columns:1.2fr 1fr;gap:1.5rem}.channel-card{border:1px solid var(--line);padding:2.5rem}.channel-card.primary{background:var(--ink);color:white;border:0}.channel-card p{margin-top:1.4rem}.channel-card .btn{margin-top:2rem}.channel-card.primary .small-note{color:#c9d8e2}.channel-card h2{font-size:3rem}.narrow{max-width:850px}.narrow p{margin-top:1.5rem}.text-link{font-weight:700}.eyebrow{font-size:.875rem}.brand small{font-size:.75rem}.community figcaption{font-size:.875rem}
@media(max-width:1100px){.header-inner{justify-content:flex-start;gap:1rem}.nav{width:100%;justify-content:space-between}.hero-grid{gap:3rem}.article-grid{gap:2.5rem}.card-grid{gap:1rem}.topic-card{padding:1.5rem}.topic-card h3{font-size:1.65rem}}
@media(max-width:900px){.article-sidebar{position:static;display:grid;grid-template-columns:1fr 1fr;gap:2rem}.article-sidebar .toc{margin-bottom:0}.article-body{min-width:0}.hero-grid{grid-template-columns:1.1fr .9fr;gap:2rem}.hero h1{font-size:3.5rem}.join-inner{gap:2rem;grid-template-columns:1fr 275px}.footer-grid{gap:1.5rem}.card-grid{grid-template-columns:1fr}.topic-card{min-height:0;display:grid;grid-template-columns:1fr 1.5fr;column-gap:2rem}.topic-card .eyebrow,.topic-card h3{grid-column:1}.topic-card p{grid-column:2;grid-row:1/4;margin-top:0;align-self:center}.card-link{grid-column:1;padding-top:1rem}.guide-list h3{font-size:1.5rem}}
@media(max-width:650px){.nav{justify-content:flex-start;gap:.8rem 1.2rem;line-height:1.4}.nav .nav-cta{margin-left:0}.header-inner{padding-block:1rem;gap:1rem}.hero{padding-top:2.5rem}.hero-grid{grid-template-columns:1fr;gap:2.5rem}.hero h1{font-size:clamp(2.5rem,10vw,3.5rem)}.feature h2{font-size:1.8rem}.feature{padding:1.6rem}.topics{grid-template-columns:1fr;padding-block:.6rem;gap:0}.topics>div{padding:.6rem 0;display:grid;grid-template-columns:1fr 1.25fr;gap:.8rem;align-items:center}.topics strong{font-size:1rem}.topics span{font-size:.875rem;margin:0}.topic-card{display:flex;padding:1.5rem}.topic-card p{margin-top:1rem}.topic-card h3{font-size:1.8rem}.guide-list>a{grid-template-columns:30px 1fr;gap:1rem;padding:1.5rem 0}.guide-number{font-size:1.2rem;align-self:start}.guide-list .link-label{display:none}.guide-list .eyebrow{line-height:1.5}.guide-list h3{line-height:1.25}.footer-grid{grid-template-columns:1fr 1fr;gap:2rem}.footer-grid>div{grid-column:1/-1}.footer-bottom{flex-direction:column;font-size:.875rem}.article-sidebar{grid-template-columns:1fr}.article-head h1{font-size:2.55rem}.article-head .lead{font-size:1.1rem}.article-grid{gap:2.5rem}.definition-grid,.data-row{grid-template-columns:1fr}.definition-grid>div{padding:1rem;display:grid;grid-template-columns:70px 1fr;gap:1rem;align-items:center}.definition-grid p{margin:0}.data-row>div{padding:1rem;display:flex;flex-wrap:wrap;gap:.5rem 1rem;align-items:center}.data-row strong{font-size:1.3rem}.spec-list>div{grid-template-columns:1fr 1.25fr}.join-inner{grid-template-columns:1fr;gap:2rem}.join-band{padding:3rem 0}.channel-grid{grid-template-columns:1fr}.channel-card{padding:1.8rem}.channel-card h2{font-size:2.5rem}.community h2{font-size:2.5rem}.brand small{letter-spacing:.07em}.formula{padding:1.2rem}.facts{gap:.7rem}.fact{padding:1rem}.fact strong{font-size:1.25rem}.eyebrow{line-height:1.55}}
@media print{.article-sidebar,.join-band{display:none}.article-grid{display:block}.article-body section{break-inside:auto}}