/* Aikya Energy — shared styles. Layout: corporate shell (utility bar, nav, page band, content, 4-col footer). */
:root{
  --bg:#F3F5F2;--surface:#FFFFFF;--sunk:#E9ECE8;--ink:#14201C;--muted:#55625C;--line:#D3D9D3;
  --band:#0F2A24;--band-ink:#E7EFEB;--band-muted:#9DB3AA;
  --panel:#1B1F1E;--panel-edge:#2E3432;--led:#FF3B24;
  --accent:#0F6E5C;--accent-ink:#FFFFFF;--warn:#B7791F;--bad:#C0392B;--good:#1F8A4C;
  --f-display:"Archivo","Arial Narrow",Arial,sans-serif;
  --f-body:"Source Sans 3","Segoe UI",system-ui,sans-serif;
  --f-mono:"JetBrains Mono",ui-monospace,Menlo,Consolas,monospace;
  color-scheme:light;
}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]){
  --bg:#0F1513;--surface:#161E1B;--sunk:#121A17;--ink:#E6EBE7;--muted:#9AA7A1;--line:#2A3531;
  --band:#0A1F1A;--band-ink:#E7EFEB;--band-muted:#8FA79D;
  --panel:#0B0E0D;--panel-edge:#26302C;--accent:#4FC2A6;--accent-ink:#0B1412;--warn:#E0A33A;--bad:#F06A5A;--good:#4CC57E;color-scheme:dark}}
:root[data-theme="dark"]{
  --bg:#0F1513;--surface:#161E1B;--sunk:#121A17;--ink:#E6EBE7;--muted:#9AA7A1;--line:#2A3531;
  --band:#0A1F1A;--band-ink:#E7EFEB;--band-muted:#8FA79D;
  --panel:#0B0E0D;--panel-edge:#26302C;--accent:#4FC2A6;--accent-ink:#0B1412;--warn:#E0A33A;--bad:#F06A5A;--good:#4CC57E;color-scheme:dark}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--ink);font-family:var(--f-body);font-size:17px;line-height:1.6}
body::before{content:"";position:fixed;inset:0 0 auto;height:env(safe-area-inset-top,0px);z-index:30;background:var(--surface)}
img{max-width:100%}
.wrap{max-width:1200px;margin:0 auto;padding-left:max(20px,env(safe-area-inset-left,0px));padding-right:max(20px,env(safe-area-inset-right,0px))}
h1,h2,h3,h4{font-family:var(--f-display);font-stretch:112%;text-wrap:balance;margin:0;line-height:1.1}
p{margin:0}
a{color:inherit}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px}
.label{font-family:var(--f-mono);font-size:12px;letter-spacing:.12em;text-transform:uppercase;color:var(--muted)}
.muted{color:var(--muted)}
[hidden]{display:none!important}

/* utility bar */
.util{background:var(--band);color:var(--band-muted);font-size:13.5px}
.util .wrap{display:flex;justify-content:space-between;gap:16px;padding-block:8px}
.util .contacts{display:flex;gap:22px}
.util b{color:var(--band-ink);font-weight:600}
@media (max-width:720px){.util .tag{display:none}.util .wrap{justify-content:center}}

/* header */
header.site{position:sticky;top:env(safe-area-inset-top,0px);z-index:20;background:var(--surface);border-bottom:1px solid var(--line)}
.nav{display:flex;align-items:center;justify-content:space-between;gap:20px;padding-block:14px}
.brand{display:flex;align-items:center;gap:12px;text-decoration:none;line-height:1.1}
.brand svg{flex:none}
.brand strong{display:block;font-family:var(--f-display);font-weight:800;font-stretch:125%;font-size:19px;letter-spacing:.03em}
.brand small{display:block;font:500 10.5px var(--f-mono);letter-spacing:.1em;text-transform:uppercase;color:var(--muted)}
.menu{display:flex;align-items:center;gap:6px;list-style:none;margin:0;padding:0}
.menu a{display:block;text-decoration:none;font-weight:600;font-size:15.5px;color:var(--muted);padding:8px 12px;border-radius:4px}
.menu a:hover{color:var(--ink);background:var(--sunk)}
.menu a[aria-current="page"]{color:var(--ink);box-shadow:inset 0 -2px 0 var(--accent);border-radius:0}
.nav-right{display:flex;align-items:center;gap:10px}
.menu-btn{display:none;background:transparent;border:1.5px solid var(--line);border-radius:4px;color:var(--ink);font:600 14px var(--f-body);padding:8px 12px;cursor:pointer}
@media (max-width:960px){
  .menu-btn{display:inline-block}
  .nav-right .btn{display:none}
  .menu{position:absolute;left:0;right:0;top:100%;flex-direction:column;align-items:stretch;gap:0;background:var(--surface);border-bottom:1px solid var(--line);padding:8px max(20px,env(safe-area-inset-right,0px)) 16px max(20px,env(safe-area-inset-left,0px));display:none}
  .menu.open{display:flex}
  .menu a{padding:12px 4px;border-bottom:1px solid var(--line);border-radius:0}
  .menu a[aria-current="page"]{box-shadow:none;color:var(--accent)}
}

.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;background:var(--accent);color:var(--accent-ink);border:0;border-radius:4px;padding:12px 22px;font:600 15px var(--f-body);text-decoration:none;cursor:pointer;white-space:nowrap}
.btn:hover{filter:brightness(1.08)}
.btn.ghost{background:transparent;color:var(--ink);box-shadow:inset 0 0 0 1.5px var(--line)}
.btn.light{background:var(--band-ink);color:var(--band)}
.link{font-weight:600;color:var(--accent);text-decoration:none}
.link:hover{text-decoration:underline}

/* page band (inner pages) */
.pageband{background:var(--band);color:var(--band-ink);padding-block:56px 60px}
.crumbs{font:500 12.5px var(--f-mono);color:var(--band-muted);letter-spacing:.06em;margin-bottom:16px}
.crumbs a{color:var(--band-muted);text-decoration:none}
.crumbs a:hover{color:var(--band-ink)}
.pageband h1{font-size:clamp(34px,5vw,56px);font-weight:800}
.pageband p{margin-top:16px;max-width:62ch;color:var(--band-muted);font-size:18.5px}

/* sections */
section{padding-block:84px}
section.alt{background:var(--surface);border-block:1px solid var(--line)}
.sec-head{display:grid;grid-template-columns:1fr 1.2fr;gap:20px 56px;align-items:end;margin-bottom:44px}
.sec-head h2{font-size:clamp(28px,3.6vw,42px);font-weight:800}
.sec-head p{color:var(--muted);max-width:58ch}
.sec-head .label{display:block;margin-bottom:10px}
@media (max-width:760px){.sec-head{grid-template-columns:1fr}section{padding-block:60px}}

/* home hero */
.hero{background:var(--surface);border-bottom:1px solid var(--line)}
.hero .wrap{display:grid;grid-template-columns:1.1fr .9fr;gap:56px;align-items:center;padding-block:76px 84px}
.hero h1{font-size:clamp(40px,6vw,72px);font-weight:800}
.hero h1 em{font-style:normal;color:var(--accent)}
.hero .lede{margin-top:22px;max-width:52ch;color:var(--muted);font-size:19px}
.hero .ctas{display:flex;flex-wrap:wrap;gap:12px;margin-top:32px}
.facts{display:flex;flex-wrap:wrap;gap:12px 28px;margin-top:36px;padding-top:24px;border-top:1px solid var(--line)}
.facts div{font-size:14.5px;color:var(--muted)}
.facts b{display:block;font-family:var(--f-display);font-stretch:112%;font-size:20px;color:var(--ink)}
@media (max-width:900px){.hero .wrap{grid-template-columns:1fr;padding-block:52px 60px;gap:44px}}

/* panel meter facsimile */
.pm{justify-self:center;width:100%;max-width:400px;aspect-ratio:1/1;background:var(--panel);border:10px solid var(--panel-edge);border-radius:6px;padding:22px 22px 18px;display:flex;flex-direction:column;gap:12px;box-shadow:0 30px 60px -28px rgba(10,20,18,.55)}
.pm-row{display:grid;grid-template-columns:44px 1fr 46px;align-items:center;gap:10px}
.pm-row .tag{font:500 10px var(--f-mono);color:#8E9894;letter-spacing:.06em;line-height:1.5}
.pm-row .tag.r{text-align:right}
.seg{background:#120606;border-radius:3px;padding:6px 10px;text-align:right;font:700 clamp(28px,8vw,42px)/1 var(--f-mono);color:var(--led);letter-spacing:.08em;font-variant-numeric:tabular-nums;text-shadow:0 0 10px rgba(255,59,36,.55);border-left:4px solid var(--c)}
.pm-foot{margin-top:auto;display:flex;justify-content:space-between;align-items:center;gap:8px}
.pm-foot .keys{display:flex;gap:8px}
.pm-foot .keys span{width:26px;height:26px;border-radius:50%;background:#2B3B6E;display:grid;place-items:center;color:#DDE3F5;font-size:11px}
.pm-foot .mdl{font:700 12px var(--f-mono);color:#C8CFCC;letter-spacing:.06em}
.pm-led{display:inline-block;width:7px;height:7px;border-radius:50%;background:var(--led);margin-right:6px;vertical-align:middle}

/* category tiles (home) */
.cats{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
@media (max-width:980px){.cats{grid-template-columns:repeat(2,1fr)}}
@media (max-width:520px){.cats{grid-template-columns:1fr}}
.cat{background:var(--surface);border:1px solid var(--line);border-radius:8px;overflow:hidden;text-decoration:none;display:flex;flex-direction:column;transition:border-color .15s,transform .15s}
.cat:hover{border-color:var(--accent);transform:translateY(-2px)}
.cat .ph{background:#FFFFFF;aspect-ratio:4/3;display:grid;place-items:center;padding:16px;border-bottom:1px solid var(--line)}
.cat .ph img{max-height:100%;width:auto}
.cat .body{padding:18px 20px 20px;display:flex;flex-direction:column;gap:6px;flex:1}
.cat h3{font-size:19px;font-weight:600}
.cat p{color:var(--muted);font-size:15px}
.cat .models{margin-top:auto;padding-top:8px;font:500 12px var(--f-mono);color:var(--accent)}

/* split feature */
.split{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center}
@media (max-width:900px){.split{grid-template-columns:1fr;gap:36px}}
.ticks{list-style:none;margin:24px 0 28px;padding:0;display:grid;gap:12px}
.ticks li{display:grid;grid-template-columns:22px 1fr;gap:10px}
.ticks li::before{content:"";width:16px;height:16px;margin-top:5px;border-radius:3px;background:var(--accent);-webkit-mask:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3E%3Cpath d='M3 8.5l3 3 7-7' fill='none' stroke='%23000' stroke-width='2.4'/%3E%3C/svg%3E") center/contain no-repeat;mask:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3E%3Cpath d='M3 8.5l3 3 7-7' fill='none' stroke='%23000' stroke-width='2.4'/%3E%3C/svg%3E") center/contain no-repeat}

/* sectors */
.sectors{display:grid;grid-template-columns:repeat(4,1fr);border:1px solid var(--line);border-radius:8px;overflow:hidden;background:var(--surface)}
.sector{padding:28px 24px;border-right:1px solid var(--line);display:flex;flex-direction:column;gap:10px;min-width:0}
.sector:last-child{border-right:0}
.sector h3{font-size:20px;font-weight:600}
.sector p{color:var(--muted);font-size:16px}
@media (max-width:900px){.sectors{grid-template-columns:1fr 1fr}.sector:nth-child(2){border-right:0}.sector:nth-child(-n+2){border-bottom:1px solid var(--line)}}
@media (max-width:540px){.sectors{grid-template-columns:1fr}.sector{border-right:0;border-bottom:1px solid var(--line)}.sector:last-child{border-bottom:0}}

/* steps */
.steps{display:grid;grid-template-columns:repeat(5,1fr);gap:20px;list-style:none;padding:0;margin:0;counter-reset:s}
.steps li{counter-increment:s;border-top:3px solid var(--accent);padding-top:16px;min-width:0}
.steps li::before{content:"Step " counter(s);display:block;font:500 12px var(--f-mono);letter-spacing:.1em;text-transform:uppercase;color:var(--accent);margin-bottom:8px}
.steps h3{font-size:19px;font-weight:600;margin-bottom:6px}
.steps p{color:var(--muted);font-size:15.5px}
@media (max-width:980px){.steps{grid-template-columns:1fr 1fr}}
@media (max-width:540px){.steps{grid-template-columns:1fr}}

/* CTA band */
.cta{background:var(--band);color:var(--band-ink)}
.cta .wrap{display:flex;flex-wrap:wrap;justify-content:space-between;align-items:center;gap:24px;padding-block:56px}
.cta h2{font-size:clamp(26px,3.2vw,36px);font-weight:800;max-width:24ch}
.cta p{color:var(--band-muted);margin-top:8px}

/* products page */
.filters{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:28px}
.filters button{font:600 14px var(--f-body);color:var(--muted);background:var(--surface);border:1.5px solid var(--line);border-radius:999px;padding:7px 16px;cursor:pointer}
.filters button[aria-pressed="true"]{background:var(--ink);color:var(--bg);border-color:var(--ink)}
.plist{display:grid;gap:20px}
.pcard{background:var(--surface);border:1px solid var(--line);border-radius:8px;display:grid;grid-template-columns:280px 1fr 1fr;overflow:hidden;scroll-margin-top:110px}
.pcard .ph{background:#FFFFFF;display:grid;place-items:center;padding:20px;border-right:1px solid var(--line)}
.pcard .ph img{max-height:220px;width:auto}
.pcard .info{padding:26px 28px;display:flex;flex-direction:column;gap:10px;min-width:0}
.pcard .code{font:700 13px var(--f-mono);color:var(--accent);letter-spacing:.04em}
.pcard h3{font-size:24px;font-weight:600}
.pcard p{color:var(--muted)}
.pcard .info .btn{align-self:flex-start;margin-top:auto}
.pcard .spec{padding:26px 28px;border-left:1px solid var(--line);min-width:0}
.pcard dl{margin:10px 0 0;display:grid}
.pcard dl div{display:grid;grid-template-columns:120px 1fr;gap:12px;padding:8px 0;border-bottom:1px solid var(--line);font-size:14.5px}
.pcard dl div:last-child{border-bottom:0}
.pcard dt{color:var(--muted)}
.pcard dd{margin:0;font-family:var(--f-mono);font-size:13.5px}
@media (max-width:1000px){.pcard{grid-template-columns:240px 1fr}.pcard .spec{grid-column:1/-1;border-left:0;border-top:1px solid var(--line)}}
@media (max-width:640px){.pcard{grid-template-columns:1fr}.pcard .ph{border-right:0;border-bottom:1px solid var(--line)}.pcard .ph img{max-height:180px}}

/* EMS */
.flow{display:flex;flex-wrap:wrap;align-items:center;gap:10px}
.flow .node{background:var(--surface);border:1.5px solid var(--line);border-radius:6px;padding:14px 18px;min-width:0}
.flow .node b{display:block;font-family:var(--f-display);font-stretch:112%;font-size:17px}
.flow .node span{font-size:13.5px;color:var(--muted)}
.flow .arr{color:var(--accent);font:700 20px var(--f-mono)}
.mods{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
@media (max-width:900px){.mods{grid-template-columns:1fr 1fr}}
@media (max-width:560px){.mods{grid-template-columns:1fr}}
.mod{background:var(--surface);border:1px solid var(--line);border-radius:8px;padding:24px;display:flex;flex-direction:column;gap:8px}
.mod h3{font-size:19px;font-weight:600}
.mod p{color:var(--muted);font-size:15.5px}
.mod .label{color:var(--accent)}

.screen{background:var(--surface);border:1px solid var(--line);border-radius:10px;overflow:hidden;box-shadow:0 30px 60px -34px rgba(10,20,18,.45);min-width:0}
.screen-bar{display:flex;align-items:center;gap:8px;padding:10px 14px;border-bottom:1px solid var(--line);font:500 12px var(--f-mono);color:var(--muted);background:var(--sunk)}
.screen-bar i{width:9px;height:9px;border-radius:50%;background:var(--line)}
.screen-bar .sample{margin-left:auto;color:var(--led);border:1px solid currentColor;border-radius:3px;padding:0 6px;font-size:10.5px;letter-spacing:.06em}
.dash{padding:18px;display:grid;gap:14px}
.dash-top{display:flex;flex-wrap:wrap;justify-content:space-between;gap:8px;align-items:baseline}
.dash-top h4{margin:0;font:600 16px var(--f-body)}
.kpis{display:grid;grid-template-columns:repeat(4,1fr);gap:10px}
@media (max-width:620px){.kpis{grid-template-columns:repeat(2,1fr)}}
.kpi{border:1px solid var(--line);border-radius:6px;padding:10px 12px;min-width:0}
.kpi b{display:block;font:700 19px var(--f-mono);font-variant-numeric:tabular-nums;margin-top:2px}
.kpi small{font-size:12px;color:var(--muted)}
.kpi small.up{color:var(--bad)} .kpi small.ok{color:var(--good)}
.chart{border:1px solid var(--line);border-radius:6px;padding:10px 12px}
.chart svg{display:block;width:100%;height:auto}
.chart svg text{fill:var(--muted);font:10px var(--f-mono)}
.dash-split{display:grid;grid-template-columns:1.5fr 1fr;gap:14px}
@media (max-width:760px){.dash-split{grid-template-columns:1fr}}
.tbl-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:6px}
table{border-collapse:collapse;width:100%;min-width:520px;font-size:13.5px}
th,td{padding:8px 10px;text-align:left;border-bottom:1px solid var(--line);white-space:nowrap}
th{font:500 11px var(--f-mono);letter-spacing:.08em;text-transform:uppercase;color:var(--muted)}
td.n,th.n{text-align:right}
td.n{font-family:var(--f-mono);font-variant-numeric:tabular-nums}
tr:last-child td{border-bottom:0}
.pill{display:inline-flex;align-items:center;gap:5px;font:600 11.5px var(--f-body);padding:1px 8px;border-radius:999px;border:1px solid currentColor}
.pill::before{content:"";width:6px;height:6px;border-radius:50%;background:currentColor}
.pill.good{color:var(--good)} .pill.warn{color:var(--warn)} .pill.bad{color:var(--bad)}
.alarms{display:grid;gap:6px;font-size:13.5px;align-content:start}
.alarms div{display:flex;gap:10px;align-items:center;border-left:3px solid var(--c);padding:7px 10px;background:var(--bg);border-radius:0 4px 4px 0}
.alarms time{font-family:var(--f-mono);font-size:12px;color:var(--muted);margin-left:auto}
.ebdg{border:1px solid var(--line);border-radius:6px;padding:12px}
.ebdg .bar{display:flex;height:14px;border-radius:3px;overflow:hidden;margin:10px 0 8px}
.ebdg .bar span{display:block}
.ebdg .leg{display:flex;justify-content:space-between;font-size:12.5px;color:var(--muted)}
.ebdg .leg b{font-family:var(--f-mono);color:var(--ink)}

/* about */
.values{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
@media (max-width:860px){.values{grid-template-columns:1fr}}
.value{border-top:3px solid var(--accent);background:var(--surface);padding:24px;border-radius:0 0 8px 8px;border-inline:1px solid var(--line);border-bottom:1px solid var(--line)}
.value h3{font-size:20px;font-weight:600;margin-bottom:8px}
.value p{color:var(--muted);font-size:16px}
.prose{max-width:66ch;display:grid;gap:16px;color:var(--muted);font-size:18px}
.prose strong{color:var(--ink)}
.qc{display:grid;grid-template-columns:repeat(4,1fr);gap:0;border:1px solid var(--line);border-radius:8px;overflow:hidden;background:var(--surface)}
.qc div{padding:22px;border-right:1px solid var(--line)}
.qc div:last-child{border-right:0}
.qc h3{font-size:17px;font-weight:600;margin:6px 0}
.qc p{color:var(--muted);font-size:15px}
@media (max-width:860px){.qc{grid-template-columns:1fr 1fr}.qc div:nth-child(2){border-right:0}.qc div:nth-child(-n+2){border-bottom:1px solid var(--line)}}
@media (max-width:500px){.qc{grid-template-columns:1fr}.qc div{border-right:0;border-bottom:1px solid var(--line)}.qc div:last-child{border-bottom:0}}

/* contact */
.contact{display:grid;grid-template-columns:.85fr 1.15fr;gap:56px}
@media (max-width:880px){.contact{grid-template-columns:1fr;gap:36px}}
.cinfo{display:grid;gap:14px}
.cbox{background:var(--surface);border:1px solid var(--line);border-radius:8px;padding:20px 22px}
.cbox dt{font:500 12px var(--f-mono);letter-spacing:.1em;text-transform:uppercase;color:var(--muted)}
.cbox dd{margin:4px 0 0;font-size:18px;font-weight:600}
.cbox dl{margin:0;display:grid;gap:16px}
.placeholder{display:inline-block;margin-left:8px;font:500 10.5px var(--f-mono);color:var(--led);border:1px solid currentColor;border-radius:3px;padding:1px 6px;vertical-align:middle}
form{background:var(--surface);border:1px solid var(--line);border-radius:8px;padding:30px;display:grid;grid-template-columns:1fr 1fr;gap:16px}
form h2{grid-column:1/-1;font-size:24px;font-weight:800}
form .full{grid-column:1/-1}
@media (max-width:540px){form{grid-template-columns:1fr;padding:20px}}
label{display:grid;gap:6px;font-size:14px;font-weight:600}
input,select,textarea{font:16px var(--f-body);color:var(--ink);background:var(--bg);border:1px solid var(--line);border-radius:4px;padding:11px 12px;width:100%}
textarea{min-height:120px;resize:vertical}
.sent{grid-column:1/-1;font-size:15px;color:var(--accent);font-weight:600}

/* footer */
footer.site{background:var(--band);color:var(--band-muted);font-size:15px}
.fcols{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:36px;padding-block:56px 40px}
@media (max-width:860px){.fcols{grid-template-columns:1fr 1fr}}
@media (max-width:480px){.fcols{grid-template-columns:1fr}}
.fcols h4{font:500 12px var(--f-mono);letter-spacing:.12em;text-transform:uppercase;color:var(--band-ink);margin-bottom:14px}
.fcols ul{list-style:none;margin:0;padding:0;display:grid;gap:8px}
.fcols a{text-decoration:none}
.fcols a:hover{color:var(--band-ink)}
.fcols .brand strong{color:var(--band-ink)}
.fcols .brand small{color:var(--band-muted)}
.fcols .about{margin-top:14px;max-width:34ch}
.fbase{border-top:1px solid rgba(255,255,255,.1)}
.fbase .wrap{display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px;padding-block:18px;font-size:13.5px}

@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}.cat{transition:none}.cat:hover{transform:none}}