:root{
  --pine:#0F2B25; --pine-2:#163A32; --leaf:#3F8F5A; --leaf-soft:#DCEBDD;
  --cell:#E3B23C; --paper:#F2F5F1; --card:#FFFFFF; --ink:#14201C; --muted:#56655F; --line:#D5DED7;
  --on-dark:#EAF1EC; --on-dark-muted:#A9BDB2;
  --display:"Archivo","Arial Narrow",system-ui,sans-serif;
  --body:"IBM Plex Sans",system-ui,-apple-system,"Segoe UI",sans-serif;
  --mono:"IBM Plex Mono",ui-monospace,Consolas,monospace;
  --wrap:1180px;
}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]){
  color-scheme:dark; --paper:#0B1714; --card:#12221E; --ink:#E6EEE9; --muted:#9DB0A7; --line:#22362F; --leaf-soft:#18332A; --leaf:#5FB27A;
}}
:root[data-theme="dark"]{
  color-scheme:dark; --paper:#0B1714; --card:#12221E; --ink:#E6EEE9; --muted:#9DB0A7; --line:#22362F; --leaf-soft:#18332A; --leaf:#5FB27A;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{animation:none!important;transition:none!important}}
body{background:var(--paper);color:var(--ink);font:400 17px/1.6 var(--body);-webkit-font-smoothing:antialiased}
img{max-width:100%;display:block}
a{color:inherit}
.wrap{max-width:var(--wrap);margin:0 auto;padding-inline:clamp(16px,4vw,40px)}
h1,h2,h3{font-family:var(--display);line-height:1.02;margin:0;text-wrap:balance;letter-spacing:-.01em}
h2{font-size:clamp(34px,5vw,58px);font-weight:800;font-stretch:88%}
h3{font-size:22px;font-weight:700;font-stretch:95%}
p{margin:0}
.eyebrow{font:500 12.5px/1 var(--mono);letter-spacing:.14em;text-transform:uppercase;color:var(--leaf);display:flex;align-items:center;gap:10px}
.eyebrow::before{content:"";width:22px;height:2px;background:currentColor}
.lead{font-size:clamp(18px,1.6vw,20px);color:var(--muted);max-width:60ch}
section{padding-block:clamp(72px,10vw,128px)}
.btn{display:inline-flex;align-items:center;gap:10px;font:600 15px/1 var(--body);padding:15px 22px;border-radius:4px;text-decoration:none;transition:transform .15s,background .15s}
.btn:hover{transform:translateY(-1px)}
.btn:focus-visible,a:focus-visible,button:focus-visible{outline:3px solid var(--cell);outline-offset:3px}
.btn-cell{background:var(--cell);color:#1B1606}
.btn-ghost{border:1px solid rgba(234,241,236,.35);color:var(--on-dark)}
.btn-ghost:hover{background:rgba(234,241,236,.08)}

/* nav */
.nav{position:sticky;top:env(safe-area-inset-top,0px);z-index:10;background:rgba(15,43,37,.92);backdrop-filter:blur(10px);border-bottom:1px solid rgba(234,241,236,.08)}
.nav .wrap{display:flex;align-items:center;justify-content:space-between;height:68px;gap:20px}
.brand{display:flex;align-items:center;gap:10px;color:var(--on-dark);text-decoration:none;font:800 21px/1 var(--display);font-stretch:90%;letter-spacing:.01em}
.brand b{display:grid;place-items:center;width:30px;height:34px;background:var(--leaf);color:#fff;border-radius:4px;font:700 13px/1 var(--mono);position:relative}
.brand b::before{content:"";position:absolute;top:-4px;width:10px;height:4px;background:var(--leaf);border-radius:2px 2px 0 0}
.brand span em{font-style:normal;color:var(--cell)}
.nav ul{display:flex;gap:28px;list-style:none;margin:0;padding:0}
.nav ul a{color:var(--on-dark-muted);text-decoration:none;font-size:15px;font-weight:500}
.nav ul a:hover{color:var(--on-dark)}
.nav .btn{padding:11px 16px;font-size:14px}
@media (max-width:860px){.nav ul{display:none}}

/* hero */
.hero{background:var(--pine);color:var(--on-dark);padding-block:clamp(56px,8vw,96px) 0;overflow:hidden}
.hero-grid{display:grid;grid-template-columns:1.05fr 1fr;gap:clamp(32px,5vw,64px);align-items:center}
.hero h1{font-size:clamp(48px,7.4vw,96px);font-weight:900;font-stretch:82%;line-height:.94}
.hero h1 .g{color:#8FD19E}
.hero h1 .y{color:var(--cell)}
.hero .lead{color:var(--on-dark-muted);margin-top:26px}
.hero .eyebrow{color:#8FD19E;margin-bottom:26px}
.cta-row{display:flex;flex-wrap:wrap;gap:12px;margin-top:34px}
.hero-img{position:relative;border-radius:6px;overflow:hidden;box-shadow:0 30px 80px rgba(0,0,0,.35)}
.hero-img img{width:100%;aspect-ratio:4/3;object-fit:cover}
.hero-img figcaption{position:absolute;left:14px;bottom:14px;font:500 12px/1 var(--mono);background:rgba(15,43,37,.8);color:var(--on-dark);padding:8px 10px;border-radius:3px;letter-spacing:.04em}
.pack{margin-top:clamp(48px,6vw,72px);border-top:1px solid rgba(234,241,236,.12);padding-block:22px 26px;display:flex;align-items:center;gap:22px;flex-wrap:wrap}
.pack-label{font:500 12px/1.4 var(--mono);color:var(--on-dark-muted);letter-spacing:.06em;max-width:24ch}
.cells{display:flex;gap:8px;flex-wrap:wrap}
.cell{width:62px;border:1px solid rgba(234,241,236,.18);border-radius:4px;padding:6px 6px 7px;text-align:center;font:500 12px/1 var(--mono);color:var(--on-dark)}
.cell i{display:block;height:26px;border-radius:2px;margin-bottom:6px;background:linear-gradient(to top,var(--c) var(--h),rgba(234,241,236,.07) var(--h))}
.pack-note{font:500 12px/1.4 var(--mono);color:#8FD19E;margin-left:auto}
@media (max-width:900px){.hero-grid{grid-template-columns:1fr}.pack-note{margin-left:0}}

/* figures */
.figs{background:var(--pine-2);color:var(--on-dark);padding-block:0}
.figs .wrap{display:grid;grid-template-columns:repeat(4,1fr)}
.fig{padding:34px 24px 30px;border-left:1px solid rgba(234,241,236,.1)}
.fig:first-child{border-left:0;padding-left:0}
.fig strong{display:block;font:800 clamp(34px,4vw,48px)/1 var(--display);font-stretch:85%;color:#fff}
.fig strong small{font-size:.5em;font-weight:700;color:var(--cell);margin-left:4px}
.fig p{margin-top:10px;font-size:14.5px;color:var(--on-dark-muted);line-height:1.45}
.src{font:400 11.5px/1.4 var(--mono);color:var(--on-dark-muted);opacity:.75;padding-bottom:22px}
@media (max-width:860px){.figs .wrap{grid-template-columns:1fr 1fr}.fig:nth-child(3){border-left:0;padding-left:0}.fig{border-top:1px solid rgba(234,241,236,.1)}}
@media (max-width:460px){.figs .wrap{grid-template-columns:1fr}.fig{border-left:0;padding-left:0}}

/* problem */
.split{display:grid;grid-template-columns:1fr 1fr;gap:clamp(32px,5vw,72px);align-items:end}
.split .lead{margin-top:20px}
.problem-img{border-radius:6px;overflow:hidden}
.problem-img img{aspect-ratio:3/2;object-fit:cover;width:100%}
.compare{margin-top:56px;overflow-x:auto;border:1px solid var(--line);border-radius:6px;background:var(--card)}
table{border-collapse:collapse;width:100%;min-width:680px;font-size:15.5px}
th,td{text-align:left;padding:18px 20px;border-bottom:1px solid var(--line);vertical-align:top}
tr:last-child td{border-bottom:0}
thead th{font:700 17px/1.2 var(--display);font-stretch:95%}
thead th small{display:block;font:500 11.5px/1.4 var(--mono);color:var(--muted);letter-spacing:.08em;text-transform:uppercase;margin-bottom:6px}
tbody th{font:500 12.5px/1.4 var(--mono);color:var(--muted);letter-spacing:.06em;text-transform:uppercase;width:17%}
td.bx,th.bx{background:var(--leaf-soft)}
th.bx small{color:var(--leaf)}
td .no{color:#B4553B;font-weight:600}
td .yes{color:var(--leaf);font-weight:600}
@media (max-width:860px){.split{grid-template-columns:1fr}}

/* solution */
.solution{background:var(--card);border-block:1px solid var(--line)}
.sol-head{display:grid;grid-template-columns:1.1fr 1fr;gap:clamp(24px,5vw,72px);align-items:end}
.diagram{margin-top:56px;background:#F4F7FB;border:1px solid var(--line);border-radius:6px;padding:clamp(12px,3vw,32px)}
.diagram img{margin:0 auto}
.diagram figcaption{font:500 12px/1.4 var(--mono);color:#56655F;text-align:center;margin-top:12px;letter-spacing:.04em}
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:0;margin-top:56px;border-top:2px solid var(--ink)}
.step{padding:26px 28px 0 0}
.step + .step{padding-left:28px;border-left:1px solid var(--line)}
.step .n{font:500 13px/1 var(--mono);color:var(--leaf)}
.step h3{margin:14px 0 10px}
.step p{color:var(--muted);font-size:16px}
.tags{display:flex;flex-wrap:wrap;gap:6px;margin-top:14px}
.tag{font:500 12px/1 var(--mono);border:1px solid var(--line);border-radius:3px;padding:6px 8px;color:var(--ink)}
.layers{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:64px}
.layer{border:1px solid var(--line);border-radius:6px;padding:26px;background:var(--paper)}
.layer .k{font:500 12px/1 var(--mono);letter-spacing:.1em;text-transform:uppercase;color:var(--leaf)}
.layer h3{margin:12px 0 12px}
.layer ul{margin:0;padding:0;list-style:none;display:grid;gap:8px;font-size:15.5px;color:var(--muted)}
.layer li{padding-left:16px;position:relative}
.layer li::before{content:"";position:absolute;left:0;top:.62em;width:7px;height:7px;border-radius:1px;background:var(--leaf)}
@media (max-width:860px){.sol-head,.steps,.layers{grid-template-columns:1fr}.step,.step+.step{padding:24px 0 0;border-left:0}.step+.step{border-top:1px solid var(--line);margin-top:24px}}

/* quote */
.quote{background:var(--pine);color:var(--on-dark);padding-block:clamp(64px,9vw,112px)}
.quote blockquote{margin:0;font:800 clamp(30px,4.6vw,58px)/1.05 var(--display);font-stretch:84%;max-width:20ch;text-wrap:balance}
.quote blockquote span{color:var(--cell)}
.quote cite{display:block;margin-top:24px;font:500 13px/1 var(--mono);font-style:normal;color:var(--on-dark-muted);letter-spacing:.08em}

/* value */
.value-grid{display:grid;grid-template-columns:1fr 1.1fr;gap:clamp(32px,5vw,72px);align-items:center}
.value-img{border-radius:6px;overflow:hidden}
.value-img img{width:100%;aspect-ratio:1/1;object-fit:cover}
.benefits{display:grid;gap:0;margin-top:36px}
.benefit{display:grid;grid-template-columns:auto 1fr;gap:18px;padding:22px 0;border-top:1px solid var(--line)}
.benefit:last-child{border-bottom:1px solid var(--line)}
.benefit .ic{width:40px;height:40px;border-radius:4px;background:var(--leaf-soft);display:grid;place-items:center;color:var(--leaf)}
.benefit h3{font-size:20px;margin-bottom:6px}
.benefit p{color:var(--muted);font-size:16px}
@media (max-width:860px){.value-grid{grid-template-columns:1fr}.value-img{order:2}}

/* model */
.model{background:var(--card);border-block:1px solid var(--line)}
.offers{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:48px}
.offer{padding:28px;border:1px solid var(--line);border-radius:6px;background:var(--paper);display:flex;flex-direction:column;gap:12px}
.offer.main{background:var(--pine);color:var(--on-dark);border-color:var(--pine)}
.offer.main p{color:var(--on-dark-muted)}
.offer.main .k{color:var(--cell)}
.offer .k{font:500 12px/1 var(--mono);letter-spacing:.1em;text-transform:uppercase;color:var(--leaf)}
.offer p{color:var(--muted);font-size:16px}
.who{margin-top:40px;display:flex;flex-wrap:wrap;gap:8px;align-items:center}
.who b{font:500 12.5px/1 var(--mono);letter-spacing:.08em;text-transform:uppercase;color:var(--muted);margin-right:8px}
.who span{font-size:14.5px;padding:8px 12px;border-radius:40px;background:var(--leaf-soft);color:var(--ink)}
@media (max-width:860px){.offers{grid-template-columns:1fr}}

/* pilot */
.pilot{position:relative;color:var(--on-dark);background:var(--pine);overflow:hidden}
.pilot::before{content:"";position:absolute;inset:0;background:url(img/bess-field.jpg) center/cover;opacity:.28}
.pilot::after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,var(--pine) 30%,rgba(15,43,37,.55))}
.pilot .wrap{position:relative;z-index:1}
.pilot .eyebrow{color:var(--cell)}
.pilot h2{max-width:14ch;margin-top:18px}
.pilot .lead{color:var(--on-dark-muted);margin-top:20px}
.specs{display:grid;grid-template-columns:repeat(3,auto);justify-content:start;gap:clamp(24px,5vw,64px);margin-top:44px}
.spec strong{display:block;font:800 clamp(36px,4.4vw,54px)/1 var(--display);font-stretch:85%}
.spec span{font:500 12.5px/1.4 var(--mono);color:var(--on-dark-muted);letter-spacing:.06em}
.timeline{margin-top:52px;max-width:760px}
.tl-bar{position:relative;height:6px;border-radius:3px;background:rgba(234,241,236,.15)}
.tl-bar i{position:absolute;inset:0 auto 0 0;width:8%;background:var(--cell);border-radius:3px}
.tl-labels{display:flex;justify-content:space-between;margin-top:12px;font:500 13px/1.4 var(--mono);color:var(--on-dark)}
.tl-labels span:last-child{text-align:right}
.tl-labels small{display:block;color:var(--on-dark-muted);font-size:11.5px}
.seeking{margin-top:48px;display:grid;grid-template-columns:repeat(3,1fr);gap:14px;max-width:900px}
.seeking div{border:1px solid rgba(234,241,236,.18);border-radius:6px;padding:18px 20px;background:rgba(15,43,37,.5)}
.seeking h3{font-size:18px}
.seeking p{font-size:14.5px;color:var(--on-dark-muted);margin-top:6px}
@media (max-width:760px){.specs,.seeking{grid-template-columns:1fr}}

/* team & partners */
.team-grid{display:grid;grid-template-columns:1fr 1fr;gap:clamp(32px,5vw,72px)}
.team-grid .lead{margin-top:20px}
.stat-row{display:flex;gap:40px;margin-top:32px;flex-wrap:wrap}
.stat-row strong{display:block;font:800 44px/1 var(--display);font-stretch:85%;color:var(--leaf)}
.stat-row span{font:500 12.5px/1.4 var(--mono);color:var(--muted)}
.partners{display:grid;gap:14px;align-content:start}
.partner{border:1px solid var(--line);border-radius:6px;padding:24px;background:var(--card)}
.partner .k{font:500 12px/1 var(--mono);letter-spacing:.1em;text-transform:uppercase;color:var(--leaf)}
.partner h3{margin:10px 0 8px}
.partner p{color:var(--muted);font-size:16px}
@media (max-width:860px){.team-grid{grid-template-columns:1fr}}

/* contact */
.contact{background:var(--leaf);color:#fff;text-align:left}
.contact h2{max-width:16ch}
.contact .row{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:32px}
.mail{display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.mail code{font:500 clamp(18px,2.2vw,24px)/1 var(--mono);background:rgba(0,0,0,.18);padding:16px 18px;border-radius:4px;user-select:all}
.mail button{font:600 15px/1 var(--body);padding:16px 18px;border:0;border-radius:4px;background:var(--cell);color:#1B1606;cursor:pointer}
footer{background:var(--pine);color:var(--on-dark-muted);font-size:14px;padding-block:28px}
footer .wrap{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap}

.page-hero{background:var(--pine);color:var(--on-dark);padding-block:clamp(56px,8vw,96px)}
.page-hero h1{font-size:clamp(44px,6.4vw,84px);font-weight:900;font-stretch:82%;line-height:.95;margin-top:20px;max-width:16ch}
.page-hero h1 .y{color:var(--cell)}
.page-hero .lead{color:var(--on-dark-muted);margin-top:22px}
.page-hero .eyebrow{color:#8FD19E}
.nav ul a[aria-current]{color:var(--on-dark);box-shadow:inset 0 -2px 0 var(--cell);padding-bottom:4px}
.teasers{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:44px}
.teaser{display:flex;flex-direction:column;gap:10px;padding:28px;border:1px solid var(--line);border-radius:6px;background:var(--card);text-decoration:none;transition:border-color .15s,transform .15s}
.teaser:hover{border-color:var(--leaf);transform:translateY(-2px)}
.teaser .k{font:500 12px/1 var(--mono);letter-spacing:.1em;text-transform:uppercase;color:var(--leaf)}
.teaser p{color:var(--muted);font-size:16px}
.teaser span.go{margin-top:auto;font-weight:600;color:var(--leaf)}
@media (max-width:860px){.teasers{grid-template-columns:1fr}}

/* v2: larger hero image, 3 figures */
.hero{padding-bottom:clamp(56px,8vw,96px)}
.hero-grid{grid-template-columns:.85fr 1.25fr}
.hero-img img{aspect-ratio:16/10}
.figs .wrap{grid-template-columns:repeat(3,1fr)}
@media (max-width:900px){.hero-grid{grid-template-columns:1fr}}
@media (max-width:860px){.figs .wrap{grid-template-columns:1fr}.fig{border-left:0;padding-left:0}}

/* contact form */
.contact .row{align-items:flex-start}
.cform{flex:1 1 420px;max-width:560px;display:grid;gap:14px;background:rgba(0,0,0,.14);padding:clamp(20px,3vw,32px);border-radius:6px}
.cform label{display:grid;gap:6px;font:500 13px/1 var(--mono);letter-spacing:.04em}
.cform input,.cform select,.cform textarea{font:400 16px/1.4 var(--body);padding:12px 14px;border:1px solid rgba(255,255,255,.35);border-radius:4px;background:#fff;color:#14201C;width:100%}
.cform textarea{resize:vertical}
.cform .f2{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.cform button{justify-self:start;font:600 15px/1 var(--body);padding:15px 22px;border:0;border-radius:4px;background:var(--cell);color:#1B1606;cursor:pointer}
.cform button:disabled{opacity:.6;cursor:wait}
.fstatus{min-height:1.4em;font-size:15px}
.hp{position:absolute;left:-9999px}
@media (max-width:560px){.cform .f2{grid-template-columns:1fr}}

/* BESS product */
.bess-grid{display:grid;grid-template-columns:1.1fr 1fr;gap:clamp(32px,5vw,72px);align-items:center}
.bess-img{border-radius:6px;overflow:hidden}
.bess-img img{width:100%;aspect-ratio:4/3;object-fit:cover}
.bom{margin:32px 0 0;display:grid}
.bom div{display:grid;grid-template-columns:11rem 1fr;gap:16px;padding:14px 0;border-top:1px solid var(--line)}
.bom div:last-child{border-bottom:1px solid var(--line)}
.bom dt{font:500 12.5px/1.5 var(--mono);letter-spacing:.06em;text-transform:uppercase;color:var(--leaf)}
.bom dd{margin:0;font-size:16px}
.btn-dark{background:var(--pine);color:var(--on-dark)}
#value{padding-top:0}
@media (max-width:860px){.bess-grid{grid-template-columns:1fr}.bom div{grid-template-columns:1fr;gap:4px}}

.hero h1{font-size:clamp(42px,5.2vw,74px)}