:root {
  --ink: #050505;
  --paper: #ffffff;
  --white: #ffffff;
  --muted: #a8a8a3;
  --line: rgba(5, 5, 5, .16);
  --signal: #ffffff;
  --mono: "DM Mono", monospace;
  --sans: "Manrope", sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--paper); color: var(--ink); font-family: var(--sans); font-size: 16px; line-height: 1.55; }
a { color: inherit; text-decoration: none; }
button { font: inherit; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0; }

.site-header { position: absolute; inset: 0 0 auto 0; z-index: 20; height: 88px; padding: 0 clamp(24px, 5vw, 78px); display: flex; align-items: center; justify-content: space-between; color: #fff; border-bottom: 1px solid rgba(255,255,255,.16); }
.brand, .footer-brand { display: flex; align-items: center; }
.logo-crop { position: relative; width: 212px; height: 35px; display: block; overflow: hidden; }
.logo-crop img { position: absolute; width: 230px; max-width: none; height: auto; left: -14px; top: -20px; display: block; }
.logo-inverse img { filter: invert(1) contrast(1.12); mix-blend-mode: screen; }
.logo-dark img { filter: contrast(1.12); mix-blend-mode: multiply; }
.site-nav { display: flex; align-items: center; gap: clamp(24px, 3vw, 48px); font-size: .88rem; font-weight: 600; }
.site-nav a { opacity: .75; transition: opacity .2s ease; }
.site-nav a:hover, .site-nav a:focus-visible { opacity: 1; }
.site-nav .nav-contact { opacity: 1; border-bottom: 1px solid currentColor; padding-bottom: 4px; }
.menu-toggle { display: none; color: #fff; background: transparent; border: 0; width: 40px; height: 40px; padding: 10px; }
.menu-toggle span:not(.sr-only) { display: block; width: 100%; height: 1px; margin: 6px 0; background: currentColor; }

.hero { position: relative; min-height: 900px; padding: 150px clamp(24px, 5vw, 78px) 92px; display: flex; align-items: center; color: #fff; background: var(--ink); overflow: hidden; }
.hero-copy { position: relative; z-index: 6; width: min(47%, 690px); }
.eyebrow, .section-kicker { margin: 0 0 30px; font-family: var(--mono); font-size: .78rem; letter-spacing: .12em; text-transform: uppercase; }
.eyebrow { display: flex; align-items: center; gap: 12px; color: rgba(255,255,255,.66); }
.eyebrow span { display: inline-block; width: 30px; height: 1px; background: currentColor; }
.hero h1 { margin: 0; font-size: clamp(4.6rem, 7vw, 8rem); line-height: .88; letter-spacing: -.075em; font-weight: 600; }
.hero h1 em { color: transparent; -webkit-text-stroke: 1.3px #fff; font-style: normal; font-weight: 500; letter-spacing: -.07em; }
.hero-intro { width: min(560px, 92%); margin: 42px 0 36px; color: rgba(255,255,255,.65); font-size: clamp(1rem, 1.15vw, 1.18rem); }
.hero-actions { display: flex; align-items: center; gap: 28px; flex-wrap: wrap; }
.button { min-height: 52px; padding: 0 22px; display: inline-flex; align-items: center; justify-content: space-between; gap: 28px; font-size: .9rem; font-weight: 700; transition: transform .2s ease, background .2s ease; }
.button:hover { transform: translateY(-2px); }
.button-light { background: #fff; color: #050505; }
.button-light:hover { color: #fff; background: #050505; outline: 1px solid #fff; }
.text-link { font-size: .88rem; border-bottom: 1px solid rgba(255,255,255,.45); padding-bottom: 5px; }

.inverter-stage { position: absolute; inset: 88px 0 0; z-index: 2; min-height: 0; margin: 0; isolation: isolate; }
.inverter-stage::before { content: ""; position: absolute; inset: 7% 3% 5% 42%; z-index: -1; border: 1px solid rgba(255,255,255,.1); background-image: linear-gradient(rgba(255,255,255,.045) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.045) 1px, transparent 1px); background-size: 52px 52px; }
.visual-index { position: absolute; z-index: 4; inset: 22px 28px auto auto; display: flex; align-items: center; gap: 14px; color: rgba(255,255,255,.46); font: .68rem var(--mono); letter-spacing: .1em; }
.visual-index span:first-child { padding-right: 14px; border-right: 1px solid rgba(255,255,255,.3); color: #fff; }
.image-reveal { position: absolute; inset: 0; overflow: hidden; }
.inverter-render { --render-scale: .94; --render-shift: 8%; width: 100%; height: 100%; object-fit: cover; object-position: center; display: block; opacity: 0; clip-path: inset(0 68% 0 0); transform: scale(.9) translateX(10%); filter: saturate(.82) contrast(1.08); animation: open-system 1.65s cubic-bezier(.72,0,.16,1) .25s forwards; }
.reveal-curtain { position: absolute; inset: 12% 0 10% 42%; z-index: 2; background: linear-gradient(90deg, transparent, #050505 16%, #050505 100%); border-left: 1px solid rgba(255,255,255,.8); transform-origin: left center; animation: open-curtain 1.5s cubic-bezier(.72,0,.16,1) .3s forwards; }
.component-label { position: absolute; z-index: 5; color: rgba(255,255,255,.72); font: .63rem var(--mono); letter-spacing: .08em; opacity: 0; animation: label-in .5s ease 1.55s forwards; }
.component-label i { position: absolute; top: 50%; width: 72px; height: 1px; background: rgba(255,255,255,.38); }
.component-label i::after { content: ""; position: absolute; top: -2px; width: 5px; height: 5px; border-radius: 50%; background: #fff; }
.label-a { left: 54%; top: 31%; }.label-a i { left: calc(100% + 10px); }.label-a i::after { right: 0; }
.label-b { right: 8%; top: 29%; }.label-b i { right: calc(100% + 10px); }.label-b i::after { left: 0; }
.label-c { left: 55%; bottom: 39%; }.label-c i { left: calc(100% + 10px); }.label-c i::after { right: 0; }
.system-note { position: absolute; z-index: 4; right: 12px; bottom: 10px; color: rgba(255,255,255,.38); font: .62rem var(--mono); letter-spacing: .1em; }
.scroll-cue { position: absolute; right: clamp(24px,5vw,78px); bottom: 24px; display: flex; align-items: center; gap: 12px; color: rgba(255,255,255,.42); font: .62rem var(--mono); letter-spacing: .08em; text-transform: uppercase; }
.scroll-cue i { width: 42px; height: 1px; background: currentColor; position: relative; overflow: hidden; }
.scroll-cue i::after { content: ""; position: absolute; inset: 0; background: #fff; transform: translateX(-100%); animation: scroll-pulse 1.8s ease-in-out infinite; }

@keyframes open-system { 0% { opacity: .2; clip-path: inset(0 68% 0 0); transform: scale(.9) translateX(10%); } 100% { opacity: 1; clip-path: inset(0 0 0 0); transform: scale(var(--render-scale)) translateX(var(--render-shift)); } }
@keyframes open-curtain { 0% { transform: translateX(0); opacity: 1; } 100% { transform: translateX(112%); opacity: 0; } }
@keyframes label-in { from { opacity: 0; transform: translateY(5px); } to { opacity: 1; transform: translateY(0); } }
@keyframes scroll-pulse { 0% { transform: translateX(-100%); } 50%,100% { transform: translateX(100%); } }

.proof-band { color: #050505; background: #fff; border-bottom: 1px solid var(--line); overflow: hidden; }
.proof-marquee { height: 54px; display: flex; align-items: center; border-bottom: 1px solid var(--line); overflow: hidden; }
.proof-track { width: max-content; display: flex; align-items: center; gap: 38px; padding-left: 38px; white-space: nowrap; font: 500 .68rem var(--mono); letter-spacing: .12em; animation: proof-scroll 28s linear infinite; }
.proof-track span { display: inline-block; }
.proof-track i { width: 5px; height: 5px; display: inline-block; background: #050505; transform: rotate(45deg); }
.proof-marquee:hover .proof-track { animation-play-state: paused; }
.proof-grid { display: grid; grid-template-columns: 1.2fr repeat(3, 1fr); }
.proof-intro, .proof-card { min-height: 265px; padding: 38px clamp(24px, 3vw, 46px); border-right: 1px solid var(--line); }
.proof-card:last-child { border-right: 0; }
.proof-intro { display: flex; flex-direction: column; justify-content: space-between; }
.proof-intro p { margin: 0; font: .7rem var(--mono); letter-spacing: .12em; }
.proof-intro h2 { margin: auto 0 0; font-size: clamp(2rem, 2.8vw, 3.4rem); line-height: .98; letter-spacing: -.055em; }
.proof-card { position: relative; display: flex; flex-direction: column; justify-content: flex-end; overflow: hidden; opacity: 0; transform: translateY(18px); transition: color .35s ease, background .35s ease, opacity .6s ease, transform .6s ease; }
.proof-band.is-visible .proof-card { opacity: 1; transform: translateY(0); }
.proof-band.is-visible .proof-card:nth-child(2) { transition-delay: .05s; }
.proof-band.is-visible .proof-card:nth-child(3) { transition-delay: .14s; }
.proof-band.is-visible .proof-card:nth-child(4) { transition-delay: .23s; }
.proof-card::before { content: ""; position: absolute; inset: 0 0 auto; height: 3px; background: #050505; transform: scaleX(0); transform-origin: left; transition: transform .4s cubic-bezier(.7,0,.2,1); }
.proof-card:hover { color: #fff; background: #050505; }
.proof-card:hover::before { background: #fff; transform: scaleX(1); }
.proof-value { margin-bottom: auto; font-size: clamp(2.4rem, 3.6vw, 4.7rem); line-height: .86; letter-spacing: -.07em; font-weight: 600; }
.proof-value sup { margin-left: 4px; font: 500 .74rem var(--mono); letter-spacing: .02em; vertical-align: top; }
.proof-value.proof-feature-title { max-width: 260px; font-size: clamp(1.65rem, 2.25vw, 2.85rem); line-height: .94; letter-spacing: -.055em; }
.proof-value.proof-words { font-family: var(--mono); font-size: clamp(1.9rem, 2.7vw, 3.4rem); letter-spacing: -.06em; }
.proof-value.proof-words span { font-weight: 400; opacity: .4; }
.proof-card h3 { margin: 42px 0 7px; font-size: 1rem; letter-spacing: -.02em; }
.proof-card p { margin: 0; max-width: 300px; color: #74746f; font-size: .78rem; line-height: 1.55; transition: color .35s ease; }
.proof-card:hover p { color: rgba(255,255,255,.58); }

@keyframes proof-scroll { to { transform: translateX(-50%); } }

.section { padding: clamp(86px, 10vw, 150px) clamp(24px, 6vw, 94px); }
.section-kicker { padding-bottom: 17px; border-bottom: 1px solid var(--line); color: #666; }
.section-kicker.light { color: rgba(255,255,255,.48); border-color: rgba(255,255,255,.16); }
.section-heading { display: grid; grid-template-columns: 1.5fr .5fr; gap: 50px; align-items: end; margin: 56px 0 70px; }
.section-heading h2, .work-heading h2, .approach h2, .cta h2 { margin: 0; font-size: clamp(2.8rem, 5vw, 5.6rem); line-height: .97; letter-spacing: -.062em; font-weight: 600; }
.section-heading p { margin: 0 0 4px; color: #666; }

.capability-grid { display: grid; grid-template-columns: 1.18fr 1fr 1fr; border: 1px solid var(--line); }
.capability-card { min-height: 520px; padding: 34px; display: flex; flex-direction: column; border-right: 1px solid var(--line); }
.capability-card:last-child { border-right: 0; }
.capability-card.featured { background: #fff; }
.card-index { margin-bottom: 30px; color: #777; font: .75rem var(--mono); }
.circuit-icon { height: 90px; margin: 0 0 44px; display: flex; align-items: center; justify-content: center; }
.circuit-icon svg { width: 180px; height: 90px; fill: none; stroke: #050505; stroke-width: 1.5; stroke-linecap: round; stroke-linejoin: round; }
.capability-card h3 { margin: 0 0 12px; font-size: 1.55rem; letter-spacing: -.035em; }
.capability-card p { margin: 0 0 28px; color: #696965; }
.capability-card ul { list-style: none; margin: 0; padding: 0; border-top: 1px solid var(--line); }
.capability-card li { padding: 10px 0 10px 18px; position: relative; border-bottom: 1px solid var(--line); font-size: .82rem; }
.capability-card li::before { content: "+"; position: absolute; left: 0; font-family: var(--mono); }

.work { color: #fff; background: var(--ink); }
.work-heading { display: flex; justify-content: space-between; gap: 30px; align-items: end; margin: 56px 0 72px; }
.work-heading p { margin: 0 0 8px; color: rgba(255,255,255,.5); }
.product-showcase { border-top: 1px solid rgba(255,255,255,.2); }
.product-panel { min-height: 720px; display: grid; grid-template-columns: minmax(0, 1.12fr) minmax(340px, .88fr); border-bottom: 1px solid rgba(255,255,255,.2); }
.product-panel-reverse .product-visual { grid-column: 2; }
.product-panel-reverse .product-copy { grid-column: 1; grid-row: 1; border-left: 0; border-right: 1px solid rgba(255,255,255,.18); }
.product-visual { position: relative; min-width: 0; min-height: 680px; margin: 0; overflow: hidden; background: radial-gradient(circle at 50% 48%, #202226 0, #0c0d0f 46%, #050505 78%); }
.product-visual::after { content: ""; position: absolute; inset: 0; pointer-events: none; background: linear-gradient(135deg, rgba(255,255,255,.055), transparent 38%); }
.product-visual img { width: 100%; height: 100%; display: block; object-fit: contain; transform: scale(.92); transition: transform .7s cubic-bezier(.2,.7,.2,1), filter .7s ease; filter: saturate(.9) contrast(1.05); }
.product-panel:hover .product-visual img { transform: scale(.965); filter: saturate(1) contrast(1.08); }
.product-visual figcaption { position: absolute; z-index: 2; top: 24px; left: 26px; padding: 8px 10px; color: rgba(255,255,255,.72); background: rgba(5,5,5,.66); border: 1px solid rgba(255,255,255,.2); font: .68rem var(--mono); letter-spacing: .1em; }
.mppt-product img { transform: scale(.94); filter: saturate(.94) contrast(1.06); }
.inverter-product img { transform: scale(.96); }
.product-panel:hover .inverter-product img { transform: scale(1.01); }
.system-product img { object-position: center; transform: scale(.94); }
.product-panel:hover .system-product img { transform: scale(.99); }
.bms-product img { transform: scale(.82); filter: saturate(.88) contrast(1.08) drop-shadow(0 28px 38px rgba(0,0,0,.34)); }
.product-panel:hover .bms-product img { transform: scale(.88); }
.ev-charger-product img { transform: scale(.84); filter: saturate(.82) contrast(1.08) drop-shadow(0 28px 38px rgba(0,0,0,.34)); }
.product-panel:hover .ev-charger-product img { transform: scale(.9); }
.gti-product img { transform: scale(.86); filter: saturate(.88) contrast(1.08) drop-shadow(0 28px 38px rgba(0,0,0,.34)); }
.product-panel:hover .gti-product img { transform: scale(.92); }
.image-credit { position: absolute; z-index: 2; right: 24px; bottom: 22px; color: rgba(255,255,255,.42); font: .62rem var(--mono); letter-spacing: .07em; text-transform: uppercase; transition: color .2s ease; }
.image-credit:hover { color: rgba(255,255,255,.78); }
.product-copy { padding: clamp(42px, 5vw, 76px); display: flex; flex-direction: column; justify-content: center; border-left: 1px solid rgba(255,255,255,.18); }
.product-eyebrow { margin: 0 0 22px; color: rgba(255,255,255,.5); font: .72rem var(--mono); letter-spacing: .12em; text-transform: uppercase; }
.product-copy h3 { max-width: 540px; margin: 0; font-size: clamp(2.25rem, 3.6vw, 4.4rem); line-height: .98; letter-spacing: -.055em; }
.product-description { max-width: 600px; margin: 28px 0 46px; color: rgba(255,255,255,.6); font-size: 1rem; line-height: 1.7; }
.product-specs { display: grid; grid-template-columns: 1fr 1fr; margin: auto 0 0; border-top: 1px solid rgba(255,255,255,.2); }
.product-specs div { min-height: 74px; padding: 14px 14px 12px 0; border-bottom: 1px solid rgba(255,255,255,.16); }
.product-specs div:nth-child(odd) { border-right: 1px solid rgba(255,255,255,.16); }
.product-specs div:nth-child(even) { padding-left: 18px; }
.product-specs dt { margin-bottom: 7px; color: rgba(255,255,255,.42); font: .67rem var(--mono); letter-spacing: .08em; text-transform: uppercase; }
.product-specs dd { margin: 0; font-size: .92rem; font-weight: 700; }

.approach-layout { margin-top: 58px; display: grid; grid-template-columns: .85fr 1.15fr; gap: clamp(60px, 10vw, 180px); align-items: start; }
.approach-sticky { position: sticky; top: 40px; }
.approach-sticky p { max-width: 520px; margin: 32px 0 0; color: #656560; }
.process-list { list-style: none; margin: 0; padding: 0; border-top: 1px solid var(--line); }
.process-list li { display: grid; grid-template-columns: 64px 1fr; gap: 20px; padding: 32px 0 38px; border-bottom: 1px solid var(--line); }
.process-list li > span { color: #777; font: .72rem var(--mono); }
.process-list h3 { margin: 0 0 8px; font-size: 1.28rem; letter-spacing: -.02em; }
.process-list p { margin: 0; color: #6c6c67; font-size: .9rem; }

.cta { min-height: 660px; position: relative; padding: 120px clamp(24px, 6vw, 94px); display: flex; flex-direction: column; align-items: flex-start; justify-content: center; color: #fff; background: #111; overflow: hidden; }
.cta-wave { position: absolute; inset: 50% -2% auto; opacity: .12; transform: translateY(-50%); }
.cta-wave svg { width: 100%; height: 320px; fill: none; stroke: white; stroke-width: 1.1; vector-effect: non-scaling-stroke; }
.cta .eyebrow, .cta h2, .cta .button { position: relative; z-index: 2; }
.cta h2 { margin-bottom: 42px; font-size: clamp(4rem, 8vw, 8rem); }

.footer { padding: 66px clamp(24px, 6vw, 94px) 28px; color: #050505; background: #fff; }
.footer-brand { font-size: 1rem; }
.footer-meta { display: grid; grid-template-columns: 1.5fr .6fr .8fr; gap: 40px; margin: 66px 0 58px; }
.footer-meta div { display: flex; flex-direction: column; gap: 8px; }
.footer-meta span { font: .68rem var(--mono); text-transform: uppercase; letter-spacing: .08em; opacity: .62; }
.footer-meta a, .footer-meta p { margin: 0; font-weight: 600; }
.footer-meta a { text-decoration: underline; text-underline-offset: 4px; }
.footer-bottom { padding-top: 22px; display: flex; justify-content: space-between; border-top: 1px solid rgba(0,0,0,.22); font: .7rem var(--mono); text-transform: uppercase; }

@media (max-width: 1050px) {
  .hero { min-height: auto; display: block; padding-top: 150px; }
  .hero-copy { width: min(100%, 700px); padding-bottom: 20px; }
  .inverter-stage { position: relative; inset: auto; height: 540px; margin-top: 24px; }
  .inverter-render { --render-scale: 1; --render-shift: 0%; object-fit: contain; }
  .inverter-stage::before { inset: 7% 2% 5% 28%; }
  .section-heading { grid-template-columns: 1fr; align-items: start; }
  .section-heading p { max-width: 560px; }
  .capability-grid { grid-template-columns: 1fr 1fr; }
  .capability-card:first-child { grid-column: 1 / -1; min-height: 460px; border-right: 0; border-bottom: 1px solid var(--line); }
  .product-panel { grid-template-columns: 1fr; }
  .product-panel-reverse .product-visual, .product-panel-reverse .product-copy { grid-column: auto; grid-row: auto; }
  .product-panel-reverse .product-copy, .product-copy { border-right: 0; border-left: 0; border-top: 1px solid rgba(255,255,255,.18); }
  .product-visual { min-height: 500px; }
  .approach-layout { grid-template-columns: 1fr; }
  .approach-sticky { position: static; }
}

@media (max-width: 760px) {
  .site-header { height: 76px; }
  .logo-crop { width: 174px; height: 29px; }
  .logo-crop img { width: 189px; left: -12px; top: -17px; }
  .menu-toggle { display: block; position: relative; z-index: 22; }
  .site-nav { display: none; position: absolute; inset: 0; min-height: 100vh; padding: 120px 28px 40px; flex-direction: column; align-items: flex-start; gap: 26px; background: #050505; font-size: 1.3rem; }
  .site-nav.open { display: flex; }
  .hero { padding-top: 126px; }
  .hero h1 { font-size: clamp(3.45rem, 16vw, 5.3rem); }
  .hero-intro { width: 100%; margin-top: 34px; }
  .hero-actions { align-items: flex-start; flex-direction: column; }
  .inverter-stage { height: 420px; min-height: 0; margin-inline: -24px; }
  .inverter-stage::before { inset: 5% 0; }
  .visual-index { inset: 10px auto auto 10px; }
  .component-label { display: none; }
  .system-note { right: 5px; bottom: 2px; font-size: .52rem; }
  .scroll-cue { display: none; }
  .proof-track { gap: 26px; padding-left: 26px; }
  .proof-grid { grid-template-columns: 1fr; }
  .proof-intro, .proof-card { min-height: 220px; border-right: 0; border-bottom: 1px solid var(--line); }
  .proof-card:last-child { border-bottom: 0; }
  .section-heading { margin: 42px 0 50px; }
  .capability-grid { grid-template-columns: 1fr; }
  .capability-card, .capability-card:first-child { grid-column: auto; min-height: 430px; border-right: 0; border-bottom: 1px solid var(--line); }
  .capability-card:last-child { border-bottom: 0; }
  .work-heading { align-items: flex-start; flex-direction: column; margin-bottom: 46px; }
  .product-panel { min-height: 0; }
  .product-visual { min-height: 330px; }
  .product-visual img { transform: scale(.98); }
  .product-panel:hover .product-visual img { transform: scale(1.02); }
  .mppt-product img { transform: scale(.98); }
  .inverter-product img { transform: scale(.98); }
  .system-product img { transform: scale(.98); }
  .bms-product img { transform: scale(.9); }
  .ev-charger-product img { transform: scale(.92); }
  .gti-product img { transform: scale(.92); }
  .product-panel:hover .inverter-product img { transform: scale(1.02); }
  .product-panel:hover .system-product img { transform: scale(1.02); }
  .product-panel:hover .bms-product img { transform: scale(.94); }
  .product-panel:hover .ev-charger-product img { transform: scale(.96); }
  .product-panel:hover .gti-product img { transform: scale(.96); }
  .image-credit { right: 14px; bottom: 14px; font-size: .55rem; }
  .product-copy { padding: 42px 0 58px; }
  .product-copy h3 { font-size: clamp(2.3rem, 12vw, 3.5rem); }
  .product-description { margin: 24px 0 36px; }
  .approach-layout { margin-top: 42px; gap: 54px; }
  .process-list li { grid-template-columns: 44px 1fr; }
  .cta { min-height: 560px; }
  .footer-meta { grid-template-columns: 1fr; margin: 48px 0; }
  .footer-bottom { gap: 20px; align-items: flex-start; flex-direction: column; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
}