/* CompuStak site styles. Dark-only by design (brand look). */
:root{
  --bg:#0b1010; --panel:#002323; --panel2:#073030; --line:#0f5a5a;
  --green:#00cc83; --teal:#00a7a9; --text:#e8f0ee; --muted:#9db3ae; --ink:#012;
  color-scheme:dark;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;overflow-x:hidden;background:var(--bg);color:var(--text);font:17px/1.6 Arial,Helvetica,sans-serif}
a{color:var(--green)}
:focus-visible{outline:3px solid var(--green);outline-offset:3px}
.wrap{max-width:1040px;margin:0 auto;padding-left:max(24px,env(safe-area-inset-left,0px));padding-right:max(24px,env(safe-area-inset-right,0px))}
.bar{height:10px;background:linear-gradient(90deg,#2fc7b4,#00e5a0 35%,#00a76a 70%,#00a7a9)}

/* Header + nav */
header.site{display:flex;align-items:center;justify-content:space-between;gap:16px 24px;padding:22px 0;flex-wrap:wrap}
header.site img{height:60px;display:block}
.nav{display:flex;align-items:center;gap:6px 24px;flex-wrap:wrap}
.nav a{color:var(--text);text-decoration:none;font-size:15px;padding:4px 0;border-bottom:2px solid transparent}
.nav a:hover{color:var(--green)}
.nav a[aria-current="page"]{color:var(--green);border-bottom-color:var(--green)}
.nav a.navbtn{border:1px solid var(--green);padding:9px 20px;border-radius:4px}
.nav a.navbtn:hover{background:var(--green);color:var(--ink)}

/* Type */
h1{font-size:clamp(34px,4.6vw,58px);line-height:1.08;margin:0 0 22px;letter-spacing:-.02em;text-wrap:balance}
.kicker{color:var(--green);font-weight:700;font-size:15px;margin:0 0 14px;letter-spacing:.02em}
.lede{font-size:20px;color:var(--muted);max-width:34em;margin:0 0 30px}
h2.t{font-size:clamp(26px,3.4vw,36px);line-height:1.15;margin:0 0 14px;letter-spacing:-.01em;max-width:20em;text-wrap:balance}
.sub{color:var(--muted);max-width:40em;margin:0 0 36px}
.prose{max-width:40em}
.prose p{margin:0 0 16px}
.note{font-size:14px;color:var(--muted)}

.btn{display:inline-block;background:var(--green);color:var(--ink);font-weight:700;padding:14px 26px;border-radius:4px;text-decoration:none}
.btn:hover{background:#3df0ac}
.btn.ghost{background:transparent;color:var(--green);border:1px solid var(--green)}
.btn.ghost:hover{background:var(--green);color:var(--ink)}
.actions{display:flex;flex-wrap:wrap;gap:12px}

section{padding:72px 0;border-top:1px solid var(--line)}

/* Grids and cards */
.grid{display:grid;gap:20px}
.g3{grid-template-columns:repeat(3,1fr)}
.g2{grid-template-columns:repeat(2,1fr)}
.g4{grid-template-columns:repeat(4,1fr)}
.grid > *{min-width:0}
.card{background:var(--panel);border:1px solid var(--line);padding:24px}
.card h3{margin:0 0 10px;font-size:19px;color:var(--green)}
.card p{margin:0;color:var(--text);font-size:16px}
.card p + p{margin-top:10px}
.card ul{margin:10px 0 0;padding-left:18px;font-size:16px}
.card li{margin:4px 0}
a.card{display:flex;flex-direction:column;text-decoration:none;color:var(--text);transition:border-color .15s,background .15s}
a.card:hover{border-color:var(--green);background:var(--panel2)}
a.card .more{display:inline-block;margin-top:auto;padding-top:14px;color:var(--green);font-weight:700;font-size:15px}

/* Step chain */
.chain{display:grid;grid-template-columns:repeat(4,1fr);gap:0;border:1px solid var(--line)}
.chain > div{padding:22px;background:var(--panel);border-right:1px solid var(--line);min-width:0}
.chain > div:last-child{border-right:0}
.chain h3{margin:0 0 8px;font-size:17px;color:var(--green)}
.chain p{margin:0;font-size:15px;color:var(--text)}
.chain span{display:block;font-size:13px;color:var(--teal);margin-bottom:6px;font-weight:700}
.chain.c3{grid-template-columns:repeat(3,1fr)}

/* Ordered process list */
.steps{list-style:none;margin:0;padding:0;counter-reset:s;border-top:1px solid var(--line)}
.steps li{counter-increment:s;display:grid;grid-template-columns:56px 1fr;gap:4px 16px;padding:18px 0;border-bottom:1px solid var(--line)}
.steps li::before{content:counter(s,decimal-leading-zero);color:var(--teal);font-weight:700;font-size:15px;padding-top:2px;font-variant-numeric:tabular-nums}
.steps b{color:var(--green);display:block;font-size:17px}
.steps p{margin:2px 0 0;color:var(--text);font-size:16px;grid-column:2}

/* Hierarchy ladder */
.ladder{display:grid;gap:8px;margin:0;padding:0;list-style:none}
.ladder li{display:grid;grid-template-columns:104px 1fr;gap:16px;align-items:start;background:var(--panel);border:1px solid var(--line);padding:16px 20px}
.ladder li .lvl{font-size:13px;font-weight:700;color:var(--ink);background:var(--green);padding:3px 10px;border-radius:3px;white-space:nowrap;margin-top:2px;text-align:center}
.ladder li:nth-child(2) .lvl{background:#1fc58d}
.ladder li:nth-child(3) .lvl{background:#2fb3a0}
.ladder li:nth-child(4) .lvl{background:#4d9c99}
.ladder li:nth-child(5) .lvl{background:#9db3ae}
.ladder b{color:var(--text)}
.ladder p{margin:2px 0 0;color:var(--muted);font-size:15px}

/* Tables */
.tablewrap{overflow-x:auto;border:1px solid var(--line)}
table{border-collapse:collapse;width:100%;font-size:16px;min-width:520px}
th,td{text-align:left;padding:12px 16px;border-bottom:1px solid var(--line);vertical-align:top}
th{background:var(--panel2);color:var(--green);font-size:14px;letter-spacing:.02em}
td{background:var(--panel)}
tr:last-child td{border-bottom:0}
td.num{font-variant-numeric:tabular-nums;white-space:nowrap}

/* Key facts strip */
.facts{display:grid;grid-template-columns:repeat(4,1fr);border:1px solid var(--line)}
.facts > div{padding:18px 20px;border-right:1px solid var(--line);background:var(--panel);min-width:0}
.facts > div:last-child{border-right:0}
.facts dt{font-size:13px;color:var(--muted);margin:0 0 4px}
.facts dd{margin:0;font-size:20px;font-weight:700;color:var(--text);font-variant-numeric:tabular-nums}

/* Images */
.hero{padding:32px 0 0}
.hero-text{max-width:992px;position:relative;z-index:1}
.hero-img{display:block;width:100vw;max-width:none;margin-left:calc(50% - 50vw);height:auto;aspect-ratio:16/6;object-fit:cover;object-position:center 64%;margin-top:-30px;
  -webkit-mask-image:linear-gradient(180deg,transparent 0,#000 12%,#000 88%,transparent 100%);
  mask-image:linear-gradient(180deg,transparent 0,#000 12%,#000 88%,transparent 100%)}
.page-hero{padding:40px 0 64px}
.page-hero .lede{margin-bottom:28px}
.shot{margin:0}
.shot img{width:100%;max-width:100%;height:auto;display:block;border:1px solid var(--line)}
.shot figcaption{font-size:13px;color:var(--muted);margin-top:8px}
.shot.noframe img{border:0}
.shot.band{margin:0 0 24px}
.shot.band img{aspect-ratio:16/6;object-fit:cover;object-position:center 55%}
.split{display:grid;grid-template-columns:.9fr 1.1fr;gap:48px;align-items:center}
.split > *{min-width:0}
.split.rev{grid-template-columns:1fr 1fr;margin-bottom:36px}
.split.top{align-items:start}

/* Callout band */
.callout{background:linear-gradient(120deg,var(--panel) 0%,var(--panel2) 100%);border:1px solid var(--line);padding:32px;display:grid;grid-template-columns:1fr auto;gap:24px;align-items:center}
.callout h2{margin:0 0 8px;font-size:clamp(22px,2.6vw,28px);line-height:1.2}
.callout p{margin:0;color:var(--muted)}
.callout .kicker{margin-bottom:8px;color:var(--green)}

footer{border-top:1px solid var(--line);padding:32px 0 48px;color:var(--muted);font-size:14px}
footer .wrap{display:grid;grid-template-columns:auto 1fr;gap:20px 32px;align-items:center}
footer img{height:52px}
footer span{grid-column:1/-1;max-width:none;padding-top:16px;border-top:1px solid var(--line)}
footer nav{display:flex;gap:6px 18px;flex-wrap:wrap;justify-content:flex-end}
footer nav a{color:var(--muted);text-decoration:none}
footer nav a:hover{color:var(--green)}

@media(max-width:900px){
  .g4{grid-template-columns:repeat(2,1fr)}
  .facts{grid-template-columns:repeat(2,1fr)}
  .facts > div:nth-child(2){border-right:0}
  .facts > div:nth-child(-n+2){border-bottom:1px solid var(--line)}
}
@media(max-width:820px){
  .g3,.g2,.g4{grid-template-columns:1fr}
  .chain,.chain.c3{grid-template-columns:1fr}
  .chain > div{border-right:0;border-bottom:1px solid var(--line)}
  .chain > div:last-child{border-bottom:0}
  header.site img{height:50px}
  .nav{gap:6px 16px}
  .nav a{font-size:14px;white-space:nowrap}
  .hero-img{margin-top:20px}
  footer .wrap{grid-template-columns:1fr}
  footer nav{justify-content:flex-start}
  .split,.split.rev{grid-template-columns:1fr}
  .callout{grid-template-columns:1fr}
  section{padding:56px 0}
}
@media(max-width:480px){
  .facts{grid-template-columns:1fr}
  .facts > div{border-right:0;border-bottom:1px solid var(--line)}
  .facts > div:last-child{border-bottom:0}
  .steps li{grid-template-columns:40px 1fr}
}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}a.card{transition:none}}

/* Enquiry form */
.contact-grid{display:grid;grid-template-columns:1.4fr .6fr;gap:32px;align-items:start}
.contact-grid > *{min-width:0}
.form{display:grid;gap:16px;background:var(--panel);border:1px solid var(--line);padding:28px}
.form .row2{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.form label{display:grid;gap:6px;font-size:14px;color:var(--muted);font-weight:700}
.form input,.form select,.form textarea{font:16px/1.4 Arial,Helvetica,sans-serif;color:var(--text);background:var(--bg);border:1px solid var(--line);border-radius:4px;padding:11px 12px;width:100%}
.form textarea{resize:vertical}
.form input:focus,.form select:focus,.form textarea:focus{outline:2px solid var(--green);outline-offset:1px;border-color:var(--green)}
.form .hp{position:absolute;left:-9999px;width:1px;height:1px;opacity:0}
.form-foot{display:flex;align-items:center;gap:16px;flex-wrap:wrap}
.form button.btn{border:0;cursor:pointer;font:700 16px Arial,Helvetica,sans-serif}
.form button[disabled]{opacity:.6;cursor:wait}
.form-status{margin:0;font-size:15px;color:var(--muted)}
.form-status.ok{color:var(--green)}
.form-status.err{color:#ffb4a8}
.contact-side h3{margin:0 0 8px;color:var(--green);font-size:19px}
.contact-side p{margin:0 0 8px}
.contact-side .mail a{font-weight:700;word-break:break-all}
@media(max-width:820px){.contact-grid,.form .row2{grid-template-columns:1fr}}

/* Model page charts */
.chart{margin:0;background:var(--panel);border:1px solid var(--line);padding:20px}
.chart svg{display:block;width:100%;height:auto}
.chart figcaption{font-size:14px;color:var(--muted);margin-top:12px}
.legend{list-style:none;margin:14px 0 0;padding:0;display:flex;flex-wrap:wrap;gap:8px 20px;font-size:14px;color:var(--muted)}
.legend span{display:inline-block;width:14px;height:14px;margin-right:8px;vertical-align:-2px}
.chart details{margin-top:14px}
.chart summary{cursor:pointer;color:var(--green);font-size:14px;font-weight:700}
.chart details .tablewrap{margin-top:12px}
table.scen tr.base td{font-weight:700;background:var(--panel2)}
table.scen th:not(:first-child),table.scen td.num{text-align:right}
.facts.f2{grid-template-columns:1fr}
.facts.f2 > div{border-right:0;border-bottom:1px solid var(--line)}
.facts.f2 > div:last-child{border-bottom:0}
#headline{padding-top:0;border-top:0}
#headline .note{margin:14px 0 0}