/* PCL Air Technology concept. Global tokens: 5 colours, 2 fonts. */
:root{
  --ink:#0A1B2E;
  --ink-2:#31465C;
  --blue:#0077AD;
  --cyan:#16B1EA;
  --needle:#E2432A;
  --steel:#EDF2F6;
  --line:#D3DDE6;
  --paper:#FFFFFF;
  --f-display:"Bricolage Grotesque","Segoe UI",sans-serif;
  --f-body:"Instrument Sans","Segoe UI",sans-serif;
  --wrap:1340px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:var(--f-body);font-size:18px;line-height:1.6;color:var(--ink);background:var(--paper);-webkit-font-smoothing:antialiased}
img{max-width:100%;display:block}
a{color:var(--blue)}
h1,h2,h3,h4{font-family:var(--f-display);line-height:1.08;margin:0;letter-spacing:-.02em;color:var(--ink)}
h1{font-size:clamp(40px,5.2vw,68px);font-weight:700}
h2{font-size:clamp(30px,3.4vw,46px);font-weight:700}
h3{font-size:22px;font-weight:650;letter-spacing:-.01em}
p{margin:0 0 1em}
.wrap{max-width:var(--wrap);width:100%;margin:0 auto;padding:0 24px}
.sec{padding:96px 0}
.sec.tint{background:var(--steel)}
.sec.ink{background:var(--ink);color:#fff}
.sec.ink h2,.sec.ink h3{color:#fff}
.sec.ink p{color:#C9D6E2}
.lede{font-size:21px;color:var(--ink-2);max-width:60ch}
.kicker{font-family:var(--f-body);font-weight:600;font-size:15px;color:var(--blue);margin-bottom:14px;display:flex;align-items:center;gap:10px}
.kicker:before{content:"";width:28px;height:3px;background:var(--needle);border-radius:2px}
.ink .kicker{color:var(--cyan)}
.btn{display:inline-flex;align-items:center;gap:10px;font-family:var(--f-body);font-weight:600;font-size:17px;padding:15px 26px;border-radius:6px;text-decoration:none;border:2px solid var(--ink);background:var(--ink);color:#fff;transition:transform .15s,background .15s}
.btn:hover{transform:translateY(-2px);background:var(--blue);border-color:var(--blue)}
.btn.ghost{background:transparent;color:var(--ink)}
.btn.ghost:hover{background:var(--ink);color:#fff;border-color:var(--ink)}
.btn.light{background:#fff;color:var(--ink);border-color:#fff}
.btn.light:hover{background:var(--cyan);border-color:var(--cyan);color:var(--ink)}
.btn.line-light{background:transparent;color:#fff;border-color:rgba(255,255,255,.55)}
.btn.line-light:hover{background:#fff;color:var(--ink)}
.row{display:flex;gap:14px;flex-wrap:wrap}

/* header */
.util{background:var(--ink);color:#C9D6E2;font-size:15px}
.util .wrap{display:flex;justify-content:space-between;gap:16px;padding-top:9px;padding-bottom:9px;flex-wrap:wrap}
.util a{color:#fff;text-decoration:none}
.util a:hover{text-decoration:underline}
.util .l,.util .r{display:flex;gap:26px;flex-wrap:wrap}
.hdr{position:sticky;top:0;z-index:50;background:#fff;border-bottom:1px solid var(--line)}
.nav .wrap{display:flex;align-items:center;justify-content:space-between;gap:24px;min-height:84px}
.logo img{height:48px;width:auto}
.menu{display:flex;gap:6px;align-items:center}
.menu a{color:var(--ink);text-decoration:none;font-weight:600;font-size:17px;padding:10px 14px;border-radius:6px}
.menu a:hover,.menu a[aria-current]{background:var(--steel);color:var(--blue)}
.menu a.cta{background:var(--ink);color:#fff;margin-left:8px}
.menu a.cta:hover{background:var(--blue)}
.burger{display:none;background:none;border:2px solid var(--ink);border-radius:6px;padding:9px 14px;font:600 16px var(--f-body);color:var(--ink)}

/* hero */
.hero{position:relative;background:var(--steel);overflow:hidden}
.hero:before{content:"";position:absolute;inset:0;background-image:linear-gradient(var(--line) 1px,transparent 1px),linear-gradient(90deg,var(--line) 1px,transparent 1px);background-size:56px 56px;opacity:.45;mask-image:linear-gradient(90deg,transparent 0,#000 70%)}
.hero .wrap{position:relative}
.hero-grid{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,560px);gap:56px;align-items:center;padding:64px 0 72px}
.hero h1 span{color:var(--blue)}
.hero .lede{margin:22px 0 28px}

/* page intro */
.intro{background:var(--steel);border-bottom:1px solid var(--line);position:relative;overflow:hidden}
.intro:after{content:"";z-index:0;pointer-events:none;position:absolute;right:-120px;top:-120px;width:420px;height:420px;border-radius:50%;border:2px solid var(--line);box-shadow:0 0 0 40px rgba(255,255,255,.35),0 0 0 41px var(--line)}
.intro .wrap{position:relative;z-index:1;padding-top:64px;padding-bottom:64px}
.crumb{font-size:15px;color:var(--ink-2);margin-bottom:18px}
.crumb a{color:var(--ink-2)}
.intro p.lede{margin-top:20px}

/* stats */
.stats{background:var(--ink);color:#fff}
.stats .wrap{display:grid;grid-template-columns:repeat(4,1fr)}
.stat{padding:36px 28px;border-left:1px solid rgba(255,255,255,.14)}
.stat:first-child{border-left:0;padding-left:0}
.stat b{display:block;font-family:var(--f-display);font-size:48px;line-height:1;letter-spacing:-.03em;font-weight:700}
.stat span{display:block;margin-top:8px;color:#C9D6E2;font-size:16px}

/* cards */
.grid{display:grid;gap:24px}
.g3{grid-template-columns:repeat(3,1fr)}
.g4{grid-template-columns:repeat(4,1fr)}
.g2{grid-template-columns:repeat(2,1fr)}
.card{background:#fff;border:1px solid var(--line);border-radius:10px;overflow:hidden;display:flex;flex-direction:column;text-decoration:none;color:var(--ink);transition:transform .2s,box-shadow .2s,border-color .2s}
.card:hover{transform:translateY(-4px);box-shadow:0 18px 40px -22px rgba(10,27,46,.45);border-color:var(--blue)}
.card .ph{aspect-ratio:4/3;background:#fff;border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:center;padding:18px}
.card .ph img{max-height:100%;width:auto;object-fit:contain}
.card .tx{padding:22px 24px 26px;display:flex;flex-direction:column;gap:8px;flex:1}
.card .tx p{font-size:16.5px;color:var(--ink-2);margin:0}
.card .go{margin-top:auto;padding-top:10px;font-weight:600;color:var(--blue);font-size:16px}
.head{display:flex;justify-content:space-between;align-items:end;gap:32px;margin-bottom:44px;flex-wrap:wrap}
.head .lede{margin:0}

/* split */
.split{display:grid;grid-template-columns:1fr 1fr;gap:72px;align-items:center}
.split.rev>:first-child{order:2}
.pic{border-radius:12px;background:#fff;border:1px solid var(--line);padding:32px;display:flex;align-items:center;justify-content:center;min-height:380px}
.pic img{max-height:420px;width:auto;object-fit:contain}
.pic.cover{padding:0;overflow:hidden}
.pic.cover img{width:100%;height:100%;max-height:none;object-fit:cover;min-height:380px}
.ticks{list-style:none;padding:0;margin:26px 0 30px;display:grid;gap:14px}
.ticks li{padding-left:34px;position:relative;font-size:18px}
.ticks li:before{content:"";position:absolute;left:0;top:.5em;width:18px;height:3px;background:var(--needle);border-radius:2px}
.ticks li b{display:block;font-family:var(--f-display);font-size:20px;letter-spacing:-.01em}

/* timeline */
.tl{position:relative;display:grid;grid-template-columns:repeat(6,1fr);gap:0;margin-top:20px}
.tl:before{content:"";position:absolute;left:0;right:0;top:14px;height:2px;background:rgba(255,255,255,.25)}
.tl .t{position:relative;padding:44px 22px 0 0}
.tl .t:before{content:"";position:absolute;top:7px;left:0;width:16px;height:16px;border-radius:50%;background:var(--ink);border:3px solid var(--cyan)}
.tl .t:last-child:before{background:var(--needle);border-color:var(--needle)}
.tl b{display:block;font-family:var(--f-display);font-size:38px;line-height:1;color:#fff;letter-spacing:-.03em}
.tl p{font-size:16px;margin:10px 0 0;color:#C9D6E2}
.tl-light:before{background:var(--line)}
.tl-light .t:before{background:#fff;border-color:var(--blue)}
.tl-light b{color:var(--ink)}
.tl-light p{color:var(--ink-2)}

/* news */
.news{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.post{display:flex;flex-direction:column;gap:10px;text-decoration:none;color:var(--ink);padding-top:20px;border-top:3px solid var(--ink)}
.post:hover{border-top-color:var(--blue)}
.post time{font-size:15px;color:var(--ink-2)}
.post h3{font-size:21px}
.post p{font-size:16px;color:var(--ink-2);margin:0}
.post .go{color:var(--blue);font-weight:600;font-size:16px;margin-top:auto}

/* band */
.band{background:var(--blue);color:#fff}
.band .wrap{display:flex;justify-content:space-between;align-items:center;gap:32px;padding-top:56px;padding-bottom:56px;flex-wrap:wrap}
.band h2{color:#fff;max-width:20ch}
.band p{margin:10px 0 0;color:#E6F4FB;font-size:19px}

/* list tiles */
.tiles{display:grid;grid-template-columns:repeat(4,1fr);gap:0;border:1px solid var(--line);border-radius:10px;overflow:hidden;background:#fff}
.tile{padding:26px 26px 28px;border-right:1px solid var(--line);border-bottom:1px solid var(--line);text-decoration:none;color:var(--ink);transition:background .15s}
.tile:hover{background:var(--steel)}
.tile h3{font-size:19px;margin-bottom:6px}
.tile p{font-size:15.5px;color:var(--ink-2);margin:0}
.tile small{display:block;margin-top:10px;font-size:14px;font-weight:600;color:var(--blue)}

/* accordion (native details) */
.acc details{border-bottom:1px solid var(--line);padding:20px 0}
.acc summary{font-family:var(--f-display);font-weight:650;font-size:21px;cursor:pointer;list-style:none;display:flex;justify-content:space-between;gap:20px}
.acc summary::-webkit-details-marker{display:none}
.acc summary:after{content:"+";font-size:28px;line-height:1;color:var(--blue)}
.acc details[open] summary:after{content:"\2013"}
.acc details p{margin:14px 0 0;color:var(--ink-2);max-width:70ch}

/* form */
.form{display:grid;gap:18px}
.form label{font-weight:600;font-size:16px;display:grid;gap:6px}
.form input,.form textarea{font:inherit;padding:14px 16px;border:1.5px solid var(--line);border-radius:6px;background:#fff;color:var(--ink)}
.form input:focus,.form textarea:focus{outline:3px solid rgba(0,119,173,.3);border-color:var(--blue)}
.form .two{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.form small{color:var(--ink-2);font-size:14px}

/* footer */
.ftr{background:var(--ink);color:#C9D6E2;font-size:16px}
.ftr .wrap{padding-top:72px;padding-bottom:36px}
.ftr .cols{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px}
.ftr img{height:46px;width:auto;filter:brightness(0) invert(1);margin-bottom:18px}
.ftr h4{color:#fff;font-size:16px;margin-bottom:14px;font-family:var(--f-body);font-weight:700;letter-spacing:0}
.ftr a{color:#C9D6E2;text-decoration:none;display:block;padding:3px 0}
.ftr a:hover{color:#fff;text-decoration:underline}
.ftr .base{margin-top:48px;padding-top:24px;border-top:1px solid rgba(255,255,255,.16);display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:14.5px}
.ftr .base a{display:inline;padding:0 0 0 18px}
.note{font-size:14.5px;color:var(--ink-2)}

@media (max-width:1100px){
  .g4,.tiles,.news{grid-template-columns:repeat(2,1fr)}
  .g3{grid-template-columns:repeat(2,1fr)}
  .hero-grid,.split{grid-template-columns:1fr;gap:40px}
  .split.rev>:first-child{order:0}
  .tl{grid-template-columns:repeat(3,1fr);row-gap:30px}
  .tl:before{display:none}
  .ftr .cols{grid-template-columns:1fr 1fr}
  .stats .wrap{grid-template-columns:repeat(2,1fr)}
  .stat:nth-child(3){border-left:0;padding-left:0}
}
@media (max-width:900px){
  .intro:after{display:none}
  .burger{display:block}
  .menu{display:none;position:absolute;left:0;right:0;top:100%;background:#fff;flex-direction:column;align-items:stretch;padding:12px 24px 20px;border-bottom:1px solid var(--line);box-shadow:0 20px 30px -20px rgba(10,27,46,.3)}
  .menu.open{display:flex}
  .menu a{padding:14px 10px}
  .menu a.cta{margin:8px 0 0;text-align:center}
  .nav .wrap{position:relative}
  .util .r{display:none}
}
@media (max-width:640px){
  body{font-size:17px}
  .sec{padding:64px 0}
  .g3,.g2,.g4,.tiles,.news,.tl,.ftr .cols,.form .two{grid-template-columns:1fr}
  .stats .wrap{grid-template-columns:1fr 1fr}
  .stat b{font-size:36px}
  .stat{padding:24px 16px}
  .pic{min-height:260px;padding:20px}
  .btn{width:100%;justify-content:center}
  .logo img{height:40px}
  .nav .wrap{min-height:72px}
}