/* Satva Energy — site styles */
@font-face{font-family:"Archivo";src:url("../fonts/archivo-var.woff2") format("woff2");font-weight:100 900;font-stretch:62% 125%;font-display:swap}
:root{
  --indigo:#14204A;      /* TOPCon cell blue-black */
  --indigo-2:#22306A;
  --cell:#2B3B78;
  --ink:#1C2230;
  --granite:#5E6573;
  --silver:#CDD3DC;
  --paper:#F3F5F8;
  --white:#FFFFFF;
  --sun:#F0A92B;
  --sun-dark:#C9861A;
  --radius-s:6px;
  --radius-l:14px;
  --wrap:1160px;
  --f:"Archivo", "Segoe UI", Arial, sans-serif;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:84px}
body{margin:0;font-family:var(--f);font-size:17px;line-height:1.6;color:var(--ink);background:var(--white);-webkit-font-smoothing:antialiased}
img,svg{max-width:100%;display:block}
a{color:inherit}
h1,h2,h3{font-stretch:118%;line-height:1.08;letter-spacing:-.02em;margin:0 0 .5em;color:var(--indigo)}
h1{font-size:clamp(2.3rem,4.8vw,3.9rem);font-weight:850}
h2{font-size:clamp(1.8rem,3.4vw,2.6rem);font-weight:800}
h3{font-size:1.2rem;font-weight:750;font-stretch:110%;letter-spacing:-.01em}
p{margin:0 0 1em;max-width:62ch}
.wrap{max-width:var(--wrap);margin:0 auto;padding:0 24px}
.skip{position:absolute;left:-999px;top:8px;background:var(--sun);color:var(--indigo);padding:8px 14px;z-index:100}
.skip:focus{left:8px}
:focus-visible{outline:3px solid var(--sun);outline-offset:3px}

/* buttons */
.btn{display:inline-block;font:inherit;font-weight:700;font-stretch:108%;font-size:1rem;text-decoration:none;padding:.8em 1.3em;border-radius:var(--radius-s);border:2px solid transparent;cursor:pointer;transition:background .15s,color .15s,border-color .15s}
.btn-sun{background:var(--sun);color:var(--indigo)}
.btn-sun:hover{background:#F6BC52}
.btn-ink{background:var(--indigo);color:var(--white)}
.btn-ink:hover{background:var(--indigo-2)}
.btn-line{border-color:var(--indigo);color:var(--indigo)}
.btn-line:hover{background:var(--indigo);color:var(--white)}

/* header */
.site-header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.94);backdrop-filter:saturate(1.4) blur(10px);border-bottom:1px solid var(--silver)}
.header-row{display:flex;align-items:center;justify-content:space-between;height:72px}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none}
.wordmark{font-size:1.45rem;font-stretch:112%;letter-spacing:-.02em;color:var(--granite);font-weight:400;line-height:1}
.wordmark b{color:var(--indigo);font-weight:800}
.foot-brand .wordmark{color:#AEB8D0}.foot-brand .wordmark b{color:#fff}
.form-error{color:#A3261B;font-weight:600;margin:16px 0 0}
.nav{display:flex;align-items:center;gap:26px}
.nav a{text-decoration:none;font-weight:600;font-size:.95rem;color:var(--ink)}
.nav a:not(.btn):hover{color:var(--indigo);text-decoration:underline;text-underline-offset:6px;text-decoration-thickness:2px;text-decoration-color:var(--sun)}
.nav .nav-call{color:var(--indigo);padding:.6em 1em}
.nav-toggle{display:none;font:inherit;font-weight:700;background:none;border:2px solid var(--indigo);color:var(--indigo);border-radius:var(--radius-s);padding:.4em .9em}

/* hero */
.hero{background:linear-gradient(180deg,var(--white) 0%,var(--paper) 100%);padding:56px 0 72px;overflow:hidden}
.hero-grid{display:grid;grid-template-columns:1.4fr .6fr;gap:48px;align-items:center}
.lead{font-size:1.2rem;color:var(--granite);max-width:52ch}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin:28px 0 30px}
.hero-proof{list-style:none;padding:0;margin:0;display:flex;flex-wrap:wrap;gap:8px 22px;color:var(--ink);font-weight:600;font-size:.95rem}
.hero-proof li{display:flex;align-items:center;gap:8px}
.hero-proof li::before{content:"";width:10px;height:10px;border-radius:2px;background:var(--sun);flex:none}
.hero-module{justify-self:center;width:min(100%,340px)}
.hero-module svg{width:100%;height:auto;filter:drop-shadow(0 30px 40px rgba(20,32,74,.28));transform:perspective(1200px) rotateY(-14deg) rotateX(4deg)}
.module-caption{font-size:.85rem;color:var(--granite);text-align:center;margin:18px auto 0}

/* sections */
.section{padding:96px 0}
.section-paper{background:var(--paper)}
.section-ink{background:var(--indigo);color:#DDE3F0}
.section-ink h2,.section-ink h3{color:var(--white)}
.section-intro{font-size:1.15rem;max-width:58ch}
.two-col{display:grid;grid-template-columns:1fr 1fr;gap:64px;align-items:start}

/* module nameplate — styled after a module's rear label */
.nameplate{border:2px solid var(--indigo);border-radius:var(--radius-s);background:var(--white);font-size:.98rem}
.np-head,.np-row{display:grid;grid-template-columns:44% 56%}
.np-head{background:var(--indigo);color:var(--white);font-weight:700;font-stretch:110%}
.np-head span,.np-row span{padding:13px 18px}
.np-row + .np-row,.np-head + .np-row{border-top:1px solid var(--silver)}
.np-row span:first-child{color:var(--granite);border-right:1px solid var(--silver)}
.np-row span:last-child{font-weight:650;color:var(--ink)}

/* offers */
.offer-list{display:grid;grid-template-columns:repeat(3,1fr);margin-top:48px;border-top:1px solid rgba(255,255,255,.18)}
.offer{padding:32px 32px 8px 0}
.offer + .offer{padding-left:32px;border-left:1px solid rgba(255,255,255,.18)}
.offer p{color:#C9D1E4}
.offer ul{list-style:none;margin:0;padding:0}
.offer li{padding:8px 0 8px 22px;position:relative;border-top:1px solid rgba(255,255,255,.1)}
.offer li::before{content:"";position:absolute;left:0;top:17px;width:9px;height:9px;border-radius:2px;background:var(--sun)}

/* calculator */
.calc{display:grid;grid-template-columns:1fr 1fr;gap:28px 64px}
.calc-intro{grid-column:1 / -1}
.calc-form{align-self:start}
.seg{border:0;padding:0;margin:0 0 24px;display:flex;gap:10px;flex-wrap:wrap}
.seg legend{font-weight:700;margin-bottom:10px;padding:0}
.seg label{display:flex;align-items:center;gap:8px;border:2px solid var(--silver);border-radius:var(--radius-s);padding:.6em 1em;cursor:pointer;font-weight:600}
.seg label:has(input:checked){border-color:var(--indigo);background:var(--paper)}
.seg input{accent-color:var(--indigo)}
.field{display:block;font-weight:700;margin-bottom:8px}
#bill{font:inherit;font-size:2.4rem;font-weight:800;font-stretch:115%;color:var(--indigo);width:100%;border:0;border-bottom:3px solid var(--indigo);padding:4px 0;background:transparent}
#billRange{width:100%;margin:22px 0 0;accent-color:var(--sun)}
.calc-error{color:#A3261B;font-weight:600;margin-top:12px}
.calc-out{background:var(--indigo);color:var(--white);border-radius:var(--radius-l);padding:28px 30px}
.calc-out dl{margin:0 0 16px}
.calc-out dl div{display:flex;justify-content:space-between;gap:16px;padding:10px 0;border-bottom:1px solid rgba(255,255,255,.14)}
.calc-out dt{color:#C9D1E4}
.calc-out dd{margin:0;font-weight:700;text-align:right}
.calc-out .big dd{color:var(--sun);font-size:1.6rem;font-stretch:115%;font-weight:850}
.calc-out .big{align-items:center}
.fine{font-size:.82rem;color:var(--granite);max-width:none}
.calc-out .fine,.section-ink .fine{color:#AEB8D0}

/* steps */
.steps{list-style:none;counter-reset:s;margin:40px 0 0;padding:0;display:grid;grid-template-columns:repeat(3,1fr);gap:0}
.steps li{counter-increment:s;padding:28px 28px 20px 0;border-top:2px solid var(--indigo);position:relative}
.steps li:nth-child(n+4){border-top-color:var(--silver)}
.steps li::before{content:counter(s);display:block;font-weight:850;font-stretch:125%;font-size:2.2rem;line-height:1;color:var(--sun-dark);margin-bottom:14px}
.steps p{color:var(--granite);font-size:.98rem}

/* why */
.why-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:40px;margin-top:20px}
.why-grid p{color:var(--granite)}
.why-grid strong{display:block;color:var(--indigo);font-size:1.1rem;margin-bottom:6px}

/* contact */
.contact{display:grid;grid-template-columns:.85fr 1.15fr;gap:64px}
.contact-list{margin:28px 0 0}
.contact-list div{padding:14px 0;border-top:1px solid rgba(255,255,255,.16)}
.contact-list dt{font-size:.85rem;color:#AEB8D0}
.contact-list dd{margin:2px 0 0;color:var(--white);font-weight:600}
.contact-list a{color:var(--white);text-decoration-color:var(--sun);text-underline-offset:4px}
.contact-form{background:var(--white);color:var(--ink);border-radius:var(--radius-l);padding:32px}
.contact-form label{display:block;font-weight:650;font-size:.92rem;margin:14px 0 6px}
.contact-form input,.contact-form select,.contact-form textarea{width:100%;font:inherit;font-size:1rem;padding:.7em .8em;border:1.5px solid var(--silver);border-radius:var(--radius-s);background:var(--white);color:var(--ink)}
.contact-form input:focus,.contact-form select:focus,.contact-form textarea:focus{border-color:var(--indigo);outline:2px solid var(--sun);outline-offset:1px}
.contact-form .btn{margin-top:22px;width:100%}
.contact-form .fine{margin-top:12px}
.f2{display:grid;grid-template-columns:1fr 1fr;gap:0 16px}
.hp{position:absolute;left:-5000px}

/* footer */
.site-footer{background:#0E1736;color:#AEB8D0;padding:40px 0;font-size:.9rem}
.foot-row{display:flex;flex-wrap:wrap;gap:12px 32px;align-items:center;justify-content:space-between}
.foot-row p{margin:0}
.foot-logo{filter:brightness(0) invert(1);opacity:.9;height:30px;width:auto}

.wa-float{position:fixed;right:18px;bottom:18px;width:56px;height:56px;border-radius:50%;background:#1FA855;display:grid;place-items:center;box-shadow:0 8px 24px rgba(0,0,0,.25);z-index:60}

/* simple pages */
.page{min-height:70vh;display:grid;place-items:center;text-align:center;padding:80px 24px}
.page p{margin-left:auto;margin-right:auto}

/* responsive */
@media (max-width:960px){
  .hero-grid,.two-col,.calc,.contact{grid-template-columns:1fr;gap:40px}
  .hero-module{width:min(55%,220px)}
  .offer-list{grid-template-columns:1fr}
  .offer,.offer + .offer{padding:28px 0 8px;border-left:0}
  .offer + .offer{border-top:1px solid rgba(255,255,255,.18)}
  .steps,.why-grid{grid-template-columns:1fr 1fr}
  .steps li:nth-child(n+3){border-top-color:var(--silver)}
}
@media (max-width:820px){
  .nav-toggle{display:block}
  .nav{position:absolute;top:72px;left:0;right:0;background:var(--white);flex-direction:column;align-items:stretch;gap:0;padding:8px 24px 20px;border-bottom:1px solid var(--silver);display:none}
  .nav.open{display:flex}
  .nav a{padding:14px 0;border-bottom:1px solid var(--paper)}
  .nav .nav-call{margin-top:12px;text-align:center}
}
@media (max-width:600px){
  body{font-size:16px}
  .wrap{padding:0 16px}
  .section{padding:64px 0}
  .hero{padding:32px 0 56px}
  .steps,.why-grid,.f2{grid-template-columns:1fr}
  .steps li{border-top-color:var(--silver)}
  .steps li:first-child{border-top-color:var(--indigo)}
  .np-head,.np-row{grid-template-columns:42% 58%}
  .np-head span,.np-row span{padding:11px 12px}
  .contact-form,.calc-out{padding:22px 18px}
  #bill{font-size:2rem}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *{transition:none!important;animation:none!important}
}