/* AMPROTEQ · studio.css — /studio, the Savings Studio explained on real captures (Oct 2026) */

.st-dim{color:var(--mut)}
.st-sh{display:flex; justify-content:space-between; align-items:flex-end; gap:24px 64px; flex-wrap:wrap}
.st-sh .body{max-width:48ch}

/* ---------- hero ---------- */
.st-hero{position:relative; padding:calc(var(--navh) + clamp(40px,6vw,90px)) 0 clamp(60px,7vw,110px); overflow:hidden; isolation:isolate}
.st-hero::before{content:''; position:absolute; inset:0; z-index:-1; pointer-events:none;
  background:radial-gradient(60% 44% at 50% 62%,rgba(24,152,252,.13),rgba(5,7,12,0) 70%)}
.st-hero-top{text-align:center}
.st-hero .crumbs{justify-content:center; margin-bottom:26px}
.st-h1{margin-top:24px; font-weight:400; letter-spacing:-.034em}
.st-h1 .ln{display:block}
.st-lead{margin:26px auto 0; text-align:center; max-width:58ch}
.st-ctas{justify-content:center; margin-top:34px}
.st-free{display:flex; justify-content:center; flex-wrap:wrap; gap:8px 26px; margin-top:22px; font-family:var(--fm); font-size:10px; letter-spacing:.2em; text-transform:uppercase; color:var(--dim)}
.st-free span{display:inline-flex; align-items:center; gap:9px}
.st-free span::before{content:''; width:4px; height:4px; border-radius:50%; background:var(--cyan)}

.st-stage{perspective:2200px; margin:clamp(48px,6vw,84px) auto 0; width:min(calc(100% - 2*var(--gut)),1240px)}
.st-stage .st-frame{transform-origin:50% 0; transform:rotateX(var(--tilt,16deg)) scale(var(--sc,.94)); will-change:transform;
  box-shadow:0 60px 120px -40px rgba(0,0,0,.9),0 0 0 1px var(--line2),0 -1px 0 0 rgba(255,255,255,.06) inset}

/* a product window: hairline frame, a thin bar, the real capture */
.st-frame{position:relative; margin:0; border-radius:14px; overflow:hidden; background:#07090E; border:1px solid var(--line2)}
.st-bar{display:flex; align-items:center; gap:7px; height:34px; padding:0 14px; border-bottom:1px solid var(--line); background:#0A0D14}
.st-bar i{width:8px; height:8px; border-radius:50%; background:#1D2430}
.st-bar span{margin-left:12px; font-family:var(--fm); font-size:10px; letter-spacing:.08em; color:var(--dim)}
.st-bar b{margin-left:auto; font-family:var(--fm); font-size:10px; font-weight:400; letter-spacing:.16em; color:var(--dim)}
.st-bar b u{text-decoration:none; color:var(--ink)}
.st-screen{position:relative}
.st-screen img{display:block; width:100%; height:auto}

.st-pin{position:absolute; left:var(--x); top:var(--y); display:flex; align-items:center; gap:10px; opacity:0; transform:translateY(8px); transition:opacity .6s var(--e),transform .6s var(--e); pointer-events:none}
.st-stage.lit .st-pin{opacity:1; transform:none}
.st-stage.lit .st-pin:nth-of-type(2){transition-delay:.12s}
.st-stage.lit .st-pin:nth-of-type(3){transition-delay:.24s}
.st-pin b{flex:none; width:26px; height:26px; border-radius:50%; display:grid; place-items:center; font-family:var(--fm); font-size:10.5px; font-weight:500; color:#03080F; background:var(--ink); box-shadow:0 0 0 6px rgba(238,243,250,.14),0 6px 20px rgba(0,0,0,.6)}
.st-pin em{font-style:normal; white-space:nowrap; font-family:var(--fm); font-size:10.5px; letter-spacing:.06em; color:var(--ink); background:rgba(5,7,12,.86); border:1px solid var(--line2); border-radius:4px; padding:6px 10px; backdrop-filter:blur(8px)}
.st-pin-l{flex-direction:row-reverse; transform-origin:right}
.st-pin-l{translate:-100% 0}

.st-facts{display:grid; grid-template-columns:repeat(5,1fr); margin:clamp(44px,5vw,70px) 0 0; border-top:1px solid var(--line2); border-bottom:1px solid var(--line)}
.st-facts>div{padding:24px clamp(12px,1.6vw,24px) 22px; border-left:1px solid var(--line)}
.st-facts>div:first-child{border-left:0; padding-left:0}
.st-facts dt{font-family:var(--fd); font-weight:300; font-size:clamp(26px,2.6vw,40px); line-height:1; letter-spacing:-.02em; white-space:nowrap; font-variant-numeric:tabular-nums}
.st-facts dt u,.st-solar-kpis dt u{text-decoration:none; font-size:.42em; color:var(--cyan); letter-spacing:.02em; margin-left:4px; font-weight:400}
.st-facts dd{margin:12px 0 0; font-family:var(--fm); font-size:9.5px; letter-spacing:.18em; text-transform:uppercase; color:var(--mut); line-height:1.6}

/* ---------- doors ---------- */
.st-doors{display:grid; grid-template-columns:repeat(4,1fr); margin-top:clamp(34px,4vw,56px); border:1px solid var(--line2); border-radius:14px; overflow:hidden; background:rgba(5,8,13,.66); -webkit-backdrop-filter:blur(12px); backdrop-filter:blur(12px)}
.st-door{position:relative; display:flex; flex-direction:column; gap:12px; padding:clamp(22px,2.4vw,34px); border-left:1px solid var(--line); background:rgba(255,255,255,0); transition:background .5s var(--e)}
.st-door:first-child{border-left:0}
.st-door::before{content:''; position:absolute; left:0; right:0; top:0; height:1px; background:var(--cyan); transform:scaleX(0); transform-origin:left; transition:transform .7s var(--e)}
.st-door:hover{background:rgba(255,255,255,.025)}
.st-door:hover::before{transform:scaleX(1)}
.st-door em{font-style:normal; font-family:var(--fm); font-size:10.5px; letter-spacing:.2em; color:var(--cyan)}
.st-door b{font-family:var(--fd); font-weight:400; font-size:clamp(21px,1.8vw,27px); letter-spacing:-.016em; line-height:1.15; margin-top:clamp(24px,3vw,44px)}
.st-door span{font-size:14px; color:var(--mut); line-height:1.6}
.st-door i{margin-top:auto!important; padding-top:10px; font-style:normal; display:inline-flex; align-items:center; gap:8px; font-family:var(--fd); font-size:14px; color:var(--ink); margin-top:8px}
.st-door i svg{width:14px; height:14px; transition:transform .45s var(--e)}
.st-door:hover i svg{transform:translateX(4px)}
.st-door-x{background:linear-gradient(160deg,rgba(24,152,252,.10),rgba(24,152,252,0) 60%)}
.st-door-x em{color:var(--ink2)}

/* ---------- how it works: pinned chain ---------- */
.st-chain{position:relative; height:calc(var(--n) * 78vh + 100vh); border-top:1px solid var(--line)}
.st-chain-pin{position:sticky; top:0; height:100vh; height:100svh; display:flex; align-items:center; overflow:hidden}
.st-chain-grid{display:grid; grid-template-columns:minmax(300px,.72fr) 1.28fr; gap:clamp(30px,4.5vw,80px); align-items:center; width:100%; padding-top:var(--navh)}
.st-chain-h{margin-top:18px; max-width:16ch}
.st-steps{list-style:none; margin:clamp(20px,3vh,36px) 0 0; padding:0; position:relative}
.st-steps::before{content:''; position:absolute; left:0; top:6px; bottom:6px; width:1px; background:var(--line2)}
.st-step{position:relative; padding:0 0 0 26px; margin:0 0 clamp(6px,1.2vh,14px)}
.st-step::before{content:''; position:absolute; left:-1px; top:4px; width:3px; height:14px; background:var(--cyan); transform:scaleY(0); transition:transform .5s var(--e)}
.st-step.on::before{transform:scaleY(1)}
.st-n{display:flex; gap:14px; font-family:var(--fm); font-size:10.5px; letter-spacing:.16em; color:var(--dim); transition:color .4s}
.st-n s{text-decoration:none; text-transform:uppercase; letter-spacing:.2em}
.st-step.on .st-n{color:var(--cyan)}
.st-step h3,.st-step p,.st-step .st-chip{display:block; overflow:hidden; max-height:0; opacity:0; transition:max-height .7s var(--e),opacity .5s var(--e),margin .7s var(--e)}
.st-step h3{font-family:var(--fd); font-weight:400; font-size:clamp(24px,2.3vw,34px); letter-spacing:-.02em; line-height:1.1}
.st-step p{font-size:15px; color:var(--mut); line-height:1.7; max-width:42ch}
.st-step.on h3{max-height:120px; opacity:1; margin-top:12px}
.st-step.on p{max-height:180px; opacity:1; margin-top:12px}
.st-step.on .st-chip{max-height:60px; opacity:1; margin-top:16px}
.st-chip{font-family:var(--fm); font-size:10.5px; letter-spacing:.08em; color:var(--ink)}
.st-chip::before{content:'\25B8'; color:var(--cyan); margin-right:9px}
.st-step-ph{display:none}
.st-chain-r{position:relative}
.st-rail{display:flex; gap:18px; flex-wrap:wrap; margin-bottom:16px; font-family:var(--fm); font-size:9.5px; letter-spacing:.2em; text-transform:uppercase; color:var(--faint)}
.st-rail span{transition:color .4s}
.st-rail span.on{color:var(--ink)}
.st-frame-s{box-shadow:0 50px 100px -40px rgba(0,0,0,.85)}
.st-frame-s .st-screen{aspect-ratio:16/10; background:#06080C}
.st-vis{position:absolute; inset:0; opacity:0; transform:scale(1.025); transition:opacity .8s var(--e),transform 1.2s var(--e)}
.st-vis.on{opacity:1; transform:none}
.st-vis img{width:100%; height:100%; object-fit:cover; object-position:0 0}
.st-vis.fit{display:grid; place-items:center; padding:clamp(18px,2.4vw,40px); background:radial-gradient(80% 80% at 50% 40%,#0B111B,#06080C)}
.st-vis.fit img{width:auto; height:auto; max-width:100%; max-height:100%; object-fit:contain; border-radius:10px; border:1px solid var(--line); box-shadow:0 30px 60px -30px rgba(0,0,0,.8)}
.st-dots{display:flex; gap:6px; margin-top:16px}
.st-dots i{flex:1; height:2px; background:var(--line2); position:relative; overflow:hidden}
.st-dots i::after{content:''; position:absolute; inset:0; background:var(--cyan); transform:scaleX(0); transform-origin:left; transition:transform .6s var(--e)}
.st-dots i.on::after,.st-dots i.done::after{transform:scaleX(1)}
.st-dots i.done::after{background:var(--line3)}

/* ---------- how a battery earns ---------- */
.st-earn{border-top:1px solid var(--line)}
.st-earn-grid{display:grid; grid-template-columns:1.55fr .9fr; gap:clamp(24px,3.4vw,56px); margin-top:clamp(34px,4vw,56px); align-items:start}
.st-plate{margin:0; border:1px solid var(--line2); border-radius:14px; overflow:hidden; background:#07090E}
.st-plate-in{position:relative}
.st-plate img{display:block; width:100%; height:auto}
.st-plate figcaption{padding:12px 16px; border-top:1px solid var(--line); font-family:var(--fm); font-size:9.5px; letter-spacing:.12em; text-transform:uppercase; color:var(--dim); line-height:1.7}
.st-hs{position:absolute; left:var(--x); top:var(--y); width:30px; height:30px; margin:-15px 0 0 -15px; padding:0; border-radius:50%; background:var(--ink); color:#03080F;
  box-shadow:0 0 0 6px rgba(238,243,250,.16),0 8px 22px rgba(0,0,0,.6); transition:transform .35s var(--e),background .35s}
.st-hs i{font-style:normal; font-family:var(--fm); font-size:11px; font-weight:500; line-height:30px}
.st-hs::before{content:''; position:absolute; inset:-10px; border-radius:50%; border:1px solid var(--cyan); opacity:0; transform:scale(.6); transition:opacity .35s,transform .35s}
.st-hs:hover,.st-hs.on,.st-hs:focus-visible{background:var(--cyan); transform:scale(1.08); outline:none}
.st-hs:hover::before,.st-hs.on::before,.st-hs:focus-visible::before{opacity:1; transform:none}
.st-earn-list{list-style:none; margin:0; padding:0; counter-reset:e}
.st-earn-list li{position:relative; padding:18px 0 18px 44px; border-top:1px solid var(--line); counter-increment:e; cursor:default; transition:border-color .35s}
.st-earn-list li::before{content:counter(e); position:absolute; left:0; top:17px; width:26px; height:26px; border-radius:50%; border:1px solid var(--line3); display:grid; place-items:center; font-family:var(--fm); font-size:10.5px; color:var(--mut); transition:all .35s}
.st-earn-list li.on{border-top-color:var(--cyan)}
.st-earn-list li.on::before{background:var(--cyan); border-color:var(--cyan); color:#03080F}
.st-earn-list b{display:block; font-family:var(--fd); font-weight:500; font-size:16.5px}
.st-earn-list span{display:block; margin-top:5px; font-size:14px; color:var(--mut); line-height:1.6}
.st-earn-sum{display:grid; grid-template-columns:1fr 1fr 1.2fr; border:1px solid var(--line2); border-radius:12px; margin-top:20px; overflow:hidden}
.st-earn-sum div{padding:16px; border-left:1px solid var(--line)}
.st-earn-sum div:first-child{border-left:0}
.st-earn-sum span{display:block; font-family:var(--fm); font-size:9px; letter-spacing:.18em; text-transform:uppercase; color:var(--mut)}
.st-earn-sum b{display:block; margin-top:8px; font-family:var(--fd); font-weight:300; font-size:clamp(20px,1.7vw,26px); letter-spacing:-.01em; white-space:nowrap; font-variant-numeric:tabular-nums}
.st-earn-sum .hi{background:rgba(60,204,252,.06)}
.st-earn-sum .hi b{color:var(--cyan)}

/* ---------- solar ---------- */
.st-solar{position:relative; padding:clamp(80px,10vw,150px) 0; border-top:1px solid var(--line); background:linear-gradient(180deg,rgba(5,7,12,0) 0,rgba(7,11,18,.92) 18%,rgba(7,11,18,.92) 82%,rgba(5,7,12,0) 100%)}
.st-film-wrap{margin-top:clamp(34px,4vw,56px)}
.st-film{position:relative; margin:0}
.st-film-v{position:relative; border-radius:16px; overflow:hidden; border:1px solid var(--line2); background:#0A0F17; aspect-ratio:2228/1212; box-shadow:0 60px 120px -50px rgba(0,0,0,.9)}
.st-film video{position:absolute; inset:0; width:100%; height:100%; object-fit:cover}
.st-film-bar{display:flex; justify-content:space-between; align-items:center; gap:16px 30px; flex-wrap:wrap; margin-top:16px}
.st-seg{display:flex; padding:4px; border:1px solid var(--line2); border-radius:10px; background:rgba(5,7,12,.74)}
.st-seg button{padding:9px 16px; border-radius:7px; font-family:var(--fm); font-size:11px; letter-spacing:.06em; color:var(--ink2); transition:background .3s,color .3s; white-space:nowrap}
.st-seg button:hover{color:var(--ink)}
.st-seg button.on{background:var(--ink); color:#03080F}
.st-film figcaption{font-family:var(--fm); font-size:9.5px; letter-spacing:.16em; text-transform:uppercase; color:var(--dim); line-height:1.7}
.st-solar-kpis{display:grid; grid-template-columns:repeat(4,1fr); margin:0; border-bottom:1px solid var(--line)}
.st-solar-kpis>div{padding:24px clamp(12px,1.6vw,24px) 22px; border-left:1px solid var(--line)}
.st-solar-kpis>div:first-child{border-left:0; padding-left:0}
.st-solar-kpis dt{font-family:var(--fd); font-weight:300; font-size:clamp(24px,2.4vw,36px); line-height:1; letter-spacing:-.02em; white-space:nowrap; font-variant-numeric:tabular-nums}
.st-solar-kpis dd{margin:10px 0 0; font-family:var(--fm); font-size:9.5px; letter-spacing:.18em; text-transform:uppercase; color:var(--mut)}
.st-loss{display:grid; grid-template-columns:.85fr 1.15fr; gap:clamp(28px,4vw,72px); margin-top:clamp(70px,8vw,120px); align-items:center}
.st-stages{list-style:none; margin:28px 0 0; padding:0; display:grid; grid-template-columns:1fr 1fr; column-gap:22px}
.st-stages li{display:flex; gap:12px; padding:9px 0; border-top:1px solid var(--line); font-size:13.5px; color:var(--ink2)}
.st-stages em{font-style:normal; font-family:var(--fm); font-size:10px; color:var(--cyan); letter-spacing:.1em; padding-top:2px}
.st-stages li.ac em{color:var(--amber)}
.st-key{display:flex; align-items:center; gap:10px; margin-top:16px; font-family:var(--fm); font-size:9.5px; letter-spacing:.16em; text-transform:uppercase; color:var(--dim)}
.st-key i{width:10px; height:2px; background:var(--cyan)}
.st-key i.ac{background:var(--amber); margin-left:14px}

/* ---------- marks + trio ---------- */
.st-mk{display:grid; grid-template-columns:repeat(3,1fr); margin-top:clamp(34px,4vw,56px); border:1px solid var(--line2); border-radius:14px; overflow:hidden; background:rgba(5,8,13,.66); -webkit-backdrop-filter:blur(12px); backdrop-filter:blur(12px)}
.st-mk>div{padding:clamp(22px,2.6vw,38px); border-left:1px solid var(--line)}
.st-mk>div:first-child{border-left:0}
.st-mk i{font-style:normal; display:block; font-size:30px; line-height:1; color:var(--cyan)}
.st-mk i.o{color:var(--amber)}
.st-mk b{display:block; margin-top:20px; font-family:var(--fd); font-weight:400; font-size:22px; letter-spacing:-.01em}
.st-mk p{margin-top:10px; font-size:14.5px; color:var(--mut); line-height:1.65}
.st-trio{display:grid; grid-template-columns:repeat(3,1fr); gap:clamp(20px,3vw,48px); margin-top:clamp(44px,5vw,72px)}
.st-trio>div{padding-top:20px; border-top:1px solid var(--line2); position:relative}
.st-trio>div::after{content:''; position:absolute; left:0; top:-1px; width:36px; height:1px; background:var(--cyan)}
.st-trio h3{margin-top:14px}
.st-trio .body{margin-top:10px}

/* ---------- proposal ---------- */
.st-pack{border-top:1px solid var(--line)}
.st-pack-grid{display:grid; grid-template-columns:.85fr 1.15fr; gap:clamp(28px,4vw,72px); align-items:center}
.st-chap{list-style:none; margin:30px 0 0; padding:0; display:grid; grid-template-columns:1fr 1fr; column-gap:24px}
.st-chap li{display:grid; grid-template-columns:34px 1fr; column-gap:10px; padding:11px 0; border-top:1px solid var(--line)}
.st-chap em{font-style:normal; font-family:var(--fm); font-size:10px; color:var(--cyan); letter-spacing:.1em; padding-top:3px}
.st-chap b{font-family:var(--fd); font-weight:500; font-size:14.5px}
.st-chap span{font-size:12.5px; color:var(--mut); line-height:1.5}
.st-pack-grid{align-items:start}
.st-pack-ph{position:sticky; top:calc(var(--navh) + 24px)}

/* ---------- faq + end ---------- */
.st-faq{border-top:1px solid var(--line)}
.st-faq-grid{display:grid; grid-template-columns:.7fr 1.3fr; gap:clamp(28px,4vw,72px); align-items:start}
.st-end{position:relative; border-top:1px solid var(--line); overflow:hidden; isolation:isolate}
.st-end::before{content:''; position:absolute; inset:0; z-index:-1; background:radial-gradient(50% 70% at 50% 100%,rgba(24,152,252,.14),rgba(5,7,12,0) 70%)}

/* ---------- smaller screens ---------- */
@media(max-width:1100px){
  .st-facts{grid-template-columns:repeat(3,1fr)}
  .st-facts>div:nth-child(4){border-left:0; padding-left:0}
  .st-facts>div:nth-child(n+4){border-top:1px solid var(--line)}
  .st-doors{grid-template-columns:1fr 1fr}
  .st-door:nth-child(3){border-left:0}
  .st-door:nth-child(n+3){border-top:1px solid var(--line)}
  .st-earn-grid,.st-loss,.st-pack-grid,.st-faq-grid{grid-template-columns:1fr}
  .st-pack-ph{position:relative; top:0}
}
@media(max-width:900px){
  .st-stage .st-frame{transform:none}
  .st-pin em{display:none}
  .st-chain{height:auto; padding:clamp(70px,10vw,110px) 0}
  .st-chain-pin{position:static; height:auto; display:block}
  .st-chain-grid{display:block; padding-top:0}
  .st-chain-r{display:none}
  .st-step{padding:24px 0 0; border-top:1px solid var(--line); margin-top:24px}
  .st-steps::before,.st-step::before{display:none}
  .st-step h3,.st-step p,.st-step .st-chip{max-height:none; opacity:1}
  .st-step h3{margin-top:12px} .st-step p{margin-top:10px} .st-step .st-chip{margin-top:14px}
  .st-step .st-n{color:var(--cyan)}
  .st-step-ph{display:block; margin-top:18px; border:1px solid var(--line2); border-radius:10px; overflow:hidden}
  .st-step-ph img{display:block; width:100%; height:auto}
  .st-seg{width:100%; overflow-x:auto}
  .st-seg button{padding:8px 11px; flex:1}
  .st-solar-kpis{grid-template-columns:1fr 1fr}
  .st-solar-kpis>div:nth-child(3){border-left:0; padding-left:0}
  .st-solar-kpis>div:nth-child(n+3){border-top:1px solid var(--line)}
  .st-mk,.st-trio{grid-template-columns:1fr}
  .st-mk>div{border-left:0; border-top:1px solid var(--line)}
  .st-mk>div:first-child{border-top:0}
}
@media(max-width:600px){
  .st-facts{grid-template-columns:1fr 1fr}
  .st-facts>div{border-left:0!important; padding-left:0!important; border-top:1px solid var(--line)}
  .st-facts>div:nth-child(even){padding-left:16px!important; border-left:1px solid var(--line)!important}
  .st-facts>div:nth-child(-n+2){border-top:0}
  .st-doors{grid-template-columns:1fr}
  .st-door{border-left:0!important; min-height:0}
  .st-door:nth-child(n+2){border-top:1px solid var(--line)}
  .st-door b{margin-top:6px}
  .st-stages,.st-chap{grid-template-columns:1fr}
  .st-earn-sum{grid-template-columns:1fr 1fr}
  .st-earn-sum .hi{grid-column:span 2; border-left:0; border-top:1px solid var(--line)}
}
@media(prefers-reduced-motion:reduce){
  .st-stage .st-frame{transform:none}
  .st-vis,.st-step h3,.st-step p,.st-step .st-chip{transition:none}
}
.st-solar-kpis{margin-top:clamp(28px,3vw,44px)!important}