/* EOS Fuel Management Systems - site stylesheet */

:root{
  --red:#D8261A; --red-deep:#A81B12; --blue:#1E88D6; --blue-deep:#12608F; --sky:#7FE0F5;
  --ink:#0E2233; --ink-2:#3B4E60; --ink-3:#6B7D8D;
  --bg:#FFFFFF; --bg-2:#F2F6FA; --bg-3:#E7EEF5; --line:#D5E0EA; --line-soft:#E9F0F6;
  --card:#FFFFFF; --shadow:0 1px 2px rgba(14,34,51,.06), 0 8px 24px rgba(14,34,51,.05);
  --c-base:#D8261A; --c-eos:#1E88D6; --grid:#DFE8F0; --axis:#9FB1C0;
  --band:#0E2233;
  --w:1240px;
  --f-display:'Barlow Condensed','Arial Narrow',Arial,sans-serif;
  --f-body:'Barlow','Helvetica Neue',Arial,sans-serif;
  --f-mono:'IBM Plex Mono',ui-monospace,'SFMono-Regular',Menlo,monospace;
}
@media (prefers-color-scheme: dark){
  :root:not([data-theme="light"]){
    --ink:#E8F0F7; --ink-2:#B4C6D5; --ink-3:#8AA0B2;
    --bg:#0A1621; --bg-2:#0F2130; --bg-3:#16303F; --line:#23414F; --line-soft:#1A3444;
    --card:#0F2130; --shadow:0 1px 2px rgba(0,0,0,.4), 0 10px 28px rgba(0,0,0,.35);
    --red:#F0584A; --blue:#4FA9EC; --blue-deep:#7CC2F5; --red-deep:#FF7C6E;
    --c-base:#E8503E; --c-eos:#3D97DE; --grid:#22404F; --axis:#5C7688;
    --band:#061019;
  }
}
:root[data-theme="dark"]{
  --ink:#E8F0F7; --ink-2:#B4C6D5; --ink-3:#8AA0B2;
  --bg:#0A1621; --bg-2:#0F2130; --bg-3:#16303F; --line:#23414F; --line-soft:#1A3444;
  --card:#0F2130; --shadow:0 1px 2px rgba(0,0,0,.4), 0 10px 28px rgba(0,0,0,.35);
  --red:#F0584A; --blue:#4FA9EC; --blue-deep:#7CC2F5; --red-deep:#FF7C6E;
  --c-base:#E8503E; --c-eos:#3D97DE; --grid:#22404F; --axis:#5C7688;
  --band:#061019;
}

*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--ink);font-family:var(--f-body);font-size:16px;line-height:1.6;-webkit-font-smoothing:antialiased}
img{max-width:100%}
a{color:var(--blue-deep);text-decoration:none}
a:hover{text-decoration:underline}
:focus-visible{outline:2px solid var(--blue);outline-offset:2px}

h1,h2,h3,h4{font-family:var(--f-display);font-weight:700;line-height:1.06;letter-spacing:-.005em;text-wrap:balance;margin:0}
h1{font-size:clamp(38px,5.4vw,64px);text-transform:uppercase}
h2{font-size:clamp(28px,3.4vw,40px);text-transform:uppercase}
h3{font-size:22px}
p{margin:0}
.eyebrow{font-family:var(--f-mono);font-size:11px;letter-spacing:.14em;text-transform:uppercase;color:var(--ink-3);margin:0}
.lede{font-size:19px;color:var(--ink-2);max-width:62ch}
.muted{color:var(--ink-3)}
.small{font-size:13.5px;line-height:1.55}
.mono{font-family:var(--f-mono)}
.num{font-variant-numeric:tabular-nums}

.wrap{max-width:var(--w);margin:0 auto;padding:0 24px}
.stack{display:flex;flex-direction:column}
.gap-8{gap:8px}.gap-12{gap:12px}.gap-16{gap:16px}.gap-24{gap:24px}.gap-32{gap:32px}.gap-48{gap:48px}
section.block{padding:64px 0;border-top:1px solid var(--line-soft)}
section.block:first-of-type{border-top:0}
.grid{display:grid;gap:20px}
.g2{grid-template-columns:repeat(2,1fr)}
.g3{grid-template-columns:repeat(3,1fr)}
.g4{grid-template-columns:repeat(4,1fr)}
@media(max-width:900px){.g3,.g4{grid-template-columns:repeat(2,1fr)}.g2{grid-template-columns:1fr}}
@media(max-width:600px){.g3,.g4{grid-template-columns:1fr}}

/* ---------- brand bars ---------- */
.swoosh{height:9px;display:flex;flex-direction:column;gap:2px}
.swoosh i{display:block;height:2px}
.swoosh i:nth-child(1){background:var(--sky)}
.swoosh i:nth-child(2){background:var(--blue)}
.swoosh i:nth-child(3){background:var(--red)}

/* ---------- nav ---------- */
header.top{position:sticky;top:0;z-index:50;background:color-mix(in srgb,var(--bg) 92%,transparent);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.topbar{display:flex;align-items:center;gap:14px;height:68px}
.logo{display:flex;align-items:center;gap:0;flex:0 0 auto}
.logo img{height:30px;width:auto;display:block}
nav.main{display:flex;gap:2px;margin-left:auto;flex-wrap:wrap}
nav.main a{font-family:var(--f-display);text-transform:uppercase;font-size:14px;font-weight:600;letter-spacing:.02em;color:var(--ink-2);padding:8px 8px;border-radius:3px;white-space:nowrap}
@media(max-width:1320px){nav.main a{font-size:13.5px;padding:8px 6px}.nav-cta{font-size:13.5px;padding:10px 12px}}
nav.main a:hover{color:var(--ink);background:var(--bg-2);text-decoration:none}
nav.main a.active{color:var(--red);box-shadow:inset 0 -2px 0 var(--red)}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;font-family:var(--f-display);text-transform:uppercase;font-weight:700;font-size:15px;letter-spacing:.03em;padding:11px 18px;border-radius:3px;border:1px solid transparent;cursor:pointer}
.btn-primary{background:var(--red);color:#fff}
.btn-primary:hover{background:var(--red-deep);text-decoration:none;color:#fff}
.btn-ghost{border-color:var(--line);color:var(--ink)}
.btn-ghost:hover{background:var(--bg-2);text-decoration:none}
.nav-cta{flex:0 0 auto}
@media(max-width:1080px){.topbar{height:auto;padding:12px 0;flex-wrap:wrap}nav.main{margin-left:0;order:3;width:100%}.nav-cta{margin-left:auto}}

/* ---------- hero ---------- */
.hero{padding:72px 0 56px;background:linear-gradient(180deg,var(--bg-2),var(--bg))}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:start}
@media(max-width:940px){.hero-grid{grid-template-columns:1fr;gap:36px}}
.rule-red{width:56px;height:4px;background:var(--red)}
.kicker{font-family:var(--f-display);font-size:17px;text-transform:uppercase;letter-spacing:.06em;color:var(--blue-deep);font-weight:600}

/* ---------- stats ---------- */
.stat{background:var(--card);border:1px solid var(--line);border-radius:4px;padding:18px 18px 16px;box-shadow:var(--shadow)}
.stat .v{font-family:var(--f-display);font-size:38px;font-weight:700;line-height:1;color:var(--ink);font-variant-numeric:tabular-nums}
.stat .k{font-family:var(--f-mono);font-size:10.5px;letter-spacing:.12em;text-transform:uppercase;color:var(--ink-3);margin-top:9px}
.stat .d{font-size:13px;color:var(--ink-2);margin-top:5px}
.stat.accent{border-top:3px solid var(--red)}

/* ---------- cards ---------- */
.card{background:var(--card);border:1px solid var(--line);border-radius:4px;padding:24px;box-shadow:var(--shadow)}
.card h3{margin-bottom:8px}
.card-link{display:block;color:inherit}
.card-link:hover{text-decoration:none;border-color:var(--blue);transform:translateY(-1px)}
.card-link{transition:border-color .15s ease, transform .15s ease}
.step{position:relative;padding-left:0}
.step .n{font-family:var(--f-display);font-size:13px;font-weight:700;letter-spacing:.1em;color:var(--red);text-transform:uppercase}
.step h3{font-size:19px;margin:6px 0 8px}

.panel{background:var(--bg-2);border:1px solid var(--line);border-left:3px solid var(--blue);border-radius:3px;padding:22px 24px}
.panel.red{border-left-color:var(--red)}

.band{background:var(--band);color:#E8F0F7;padding:56px 0}
.band h2{color:#fff}
.band .lede{color:#B7C9D8}
.band .stat{background:rgba(255,255,255,.05);border-color:rgba(255,255,255,.13);box-shadow:none}
.band .stat .v{color:#fff}
.band .stat .k{color:#9FB6C8}
.band .stat .d{color:#B7C9D8}

/* ---------- tables ---------- */
.tablewrap{overflow-x:auto;border:1px solid var(--line);border-radius:4px;background:var(--card)}
table{border-collapse:collapse;width:100%;font-size:14.5px;min-width:560px}
th,td{text-align:right;padding:11px 14px;border-bottom:1px solid var(--line-soft)}
th:first-child,td:first-child{text-align:left}
thead th{font-family:var(--f-mono);font-size:10.5px;letter-spacing:.09em;text-transform:uppercase;color:var(--ink-3);background:var(--bg-2);border-bottom:1px solid var(--line);font-weight:500;vertical-align:bottom}
tbody td{font-variant-numeric:tabular-nums;color:var(--ink-2)}
tbody td:first-child{color:var(--ink);font-weight:600}
tbody tr:last-child td{border-bottom:0}
tr.total td{background:var(--bg-2);color:var(--ink);font-weight:700}
.pos{color:var(--blue-deep);font-weight:600}

/* ---------- charts ---------- */
figure.chart{margin:0;background:var(--card);border:1px solid var(--line);border-radius:4px;padding:22px 22px 16px;box-shadow:var(--shadow)}
figure.chart figcaption{font-size:13px;color:var(--ink-3);margin-top:12px;line-height:1.5}
.chart-title{font-family:var(--f-display);font-size:21px;font-weight:700;text-transform:uppercase;line-height:1.1}
.chart-sub{font-size:13.5px;color:var(--ink-3);margin-top:4px}
.legend{display:flex;gap:18px;flex-wrap:wrap;margin:14px 0 6px}
.legend span{display:flex;align-items:center;gap:7px;font-size:13px;color:var(--ink-2)}
.legend i{width:11px;height:11px;border-radius:2px;display:block}
.svgbox{position:relative;overflow-x:auto}
svg.ch{display:block;width:100%;height:auto;font-family:var(--f-body)}
svg.ch .gl{stroke:var(--grid);stroke-width:1}
svg.ch .ax{fill:var(--axis);font-size:11px;font-family:var(--f-mono)}
svg.ch .cat{fill:var(--ink-2);font-size:12.5px;font-weight:600}
svg.ch .vlab{fill:var(--ink-2);font-size:11.5px;font-family:var(--f-mono);font-variant-numeric:tabular-nums}
svg.ch rect.bar{transition:opacity .12s ease}
svg.ch g.hit:hover rect.bar{opacity:.82}
.tip{position:absolute;pointer-events:none;opacity:0;transform:translate(-50%,-115%);background:var(--ink);color:var(--bg);padding:7px 10px;border-radius:3px;font-size:12.5px;font-family:var(--f-mono);white-space:nowrap;transition:opacity .1s ease;z-index:5;box-shadow:0 4px 14px rgba(0,0,0,.2)}

/* ---------- calculator ---------- */
.calc{background:var(--bg-2);border:1px solid var(--line);border-radius:4px;padding:24px}
.fields{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
@media(max-width:700px){.fields{grid-template-columns:1fr}}
label{display:block;font-family:var(--f-mono);font-size:10.5px;letter-spacing:.1em;text-transform:uppercase;color:var(--ink-3);margin-bottom:6px}
input[type=number]{width:100%;padding:10px 12px;border:1px solid var(--line);border-radius:3px;background:var(--card);color:var(--ink);font-family:var(--f-mono);font-size:16px;font-variant-numeric:tabular-nums}
.out{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--line);border:1px solid var(--line);border-radius:3px;overflow:hidden;margin-top:20px}
@media(max-width:700px){.out{grid-template-columns:1fr}}
.out div{background:var(--card);padding:16px 18px}
.out .ov{font-family:var(--f-display);font-size:31px;font-weight:700;line-height:1;font-variant-numeric:tabular-nums}
.out .ok{font-family:var(--f-mono);font-size:10.5px;letter-spacing:.1em;text-transform:uppercase;color:var(--ink-3);margin-top:8px}
.out .keep .ov{color:var(--blue-deep)}

/* ---------- faq ---------- */
details{border:1px solid var(--line);border-radius:4px;background:var(--card);padding:0}
details+details{margin-top:10px}
summary{cursor:pointer;padding:16px 20px;font-family:var(--f-display);font-size:19px;font-weight:600;text-transform:uppercase;list-style:none;display:flex;justify-content:space-between;gap:16px;align-items:center}
summary::-webkit-details-marker{display:none}
summary::after{content:"+";font-family:var(--f-mono);font-size:18px;color:var(--red);font-weight:400}
details[open] summary::after{content:"–"}
details .body{padding:0 20px 18px;color:var(--ink-2);max-width:80ch}

/* ---------- compare list ---------- */
.cmp{display:grid;grid-template-columns:1fr 1fr;gap:0;border:1px solid var(--line);border-radius:4px;overflow:hidden}
@media(max-width:760px){.cmp{grid-template-columns:1fr}}
.cmp>div{padding:22px 24px;background:var(--card)}
.cmp>div+div{border-left:1px solid var(--line)}
@media(max-width:760px){.cmp>div+div{border-left:0;border-top:1px solid var(--line)}}
.cmp h3{font-size:17px;letter-spacing:.02em}
.cmp ul{margin:14px 0 0;padding:0;list-style:none;display:flex;flex-direction:column;gap:10px}
.cmp li{padding-left:24px;position:relative;color:var(--ink-2);font-size:15px}
.cmp li::before{position:absolute;left:0;top:0;font-family:var(--f-mono);font-size:14px}
.cmp .does li::before{content:"→";color:var(--blue)}
.cmp .never li::before{content:"✕";color:var(--red)}

ul.ticks{margin:0;padding:0;list-style:none;display:flex;flex-direction:column;gap:9px}
ul.ticks li{padding-left:22px;position:relative;color:var(--ink-2)}
ul.ticks li::before{content:"▪";position:absolute;left:2px;color:var(--red)}

/* ---------- footer ---------- */
footer{background:var(--bg-2);border-top:1px solid var(--line);padding:44px 0 34px;margin-top:0}
.fine{font-size:11.5px;line-height:1.6;color:var(--ink-3);max-width:none}
.contactline{font-family:var(--f-display);font-size:20px;text-transform:uppercase;font-weight:600}

@media (prefers-reduced-motion: reduce){*{transition:none!important;animation:none!important}}