/* Stator Aero — shared stylesheet
   Navy/gold trade-desk identity. Full-bleed alternating bands, heavy display type,
   mono for every part number, ESN, NSN and cycle figure. */
:root{
  --navy:#0E2033; --navy-2:#16304A; --navy-3:#1D3D5C;
  --paper:#FFFFFF; --mist:#ECEEEF; --soft:#F7F8F9;
  --ink:#14212C; --body:#55666F; --line:#DFE4E8; --line-dark:#22405C;
  --gold:#E9A13B; --gold-ink:#1A1200; --gold-deep:#B97A16;
  --font:"Archivo",system-ui,-apple-system,"Segoe UI",Helvetica,Arial,sans-serif;
  --mono:"IBM Plex Mono",ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  color-scheme:light;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:110px}
@media (prefers-reduced-motion: reduce){html{scroll-behavior:auto}}
body{
  margin:0;background:var(--paper);color:var(--ink);
  font-family:var(--font);font-size:17px;line-height:1.6;-webkit-font-smoothing:antialiased;
}
a{color:var(--gold-deep)}
:focus-visible{outline:2px solid var(--gold);outline-offset:3px}
img,svg{max-width:100%}
.wrap{max-width:1180px;margin:0 auto;padding-inline:26px}
.narrow{max-width:900px}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;
  min-height:50px;padding:0 26px;border-radius:3px;
  font:inherit;font-size:15.5px;font-weight:700;text-decoration:none;cursor:pointer;
  border:1.5px solid transparent;white-space:nowrap;
}
.btn.gold{background:var(--gold);color:var(--gold-ink);border-color:var(--gold)}
.btn.gold:hover{filter:brightness(1.07)}
.btn.ghost-light{background:transparent;color:#fff;border-color:rgba(255,255,255,.45)}
.btn.ghost-light:hover{border-color:#fff}
.btn.ghost-dark{background:transparent;color:var(--ink);border-color:var(--line)}
.btn.ghost-dark:hover{border-color:var(--ink)}
.btn.navy{background:var(--navy);color:#fff;border-color:var(--navy)}
.btn.navy:hover{background:var(--navy-2)}

/* ---------- utility bar ---------- */
.util{background:#0A1826;color:#8FA6BC;font-size:12.5px}
.util .wrap{display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;padding-block:8px}
.util .l,.util .r{display:flex;gap:22px;flex-wrap:wrap;min-width:0}
.util .mono{font-family:var(--mono);letter-spacing:.02em}
.util a{color:#B9CADA;text-decoration:none}
.util a:hover{color:#fff}
.util .todo{color:var(--gold)}

/* ---------- header ---------- */
header.site{background:var(--navy);position:sticky;top:env(safe-area-inset-top,0px);z-index:40}
header.site .wrap{display:flex;align-items:center;justify-content:space-between;gap:20px;height:74px}
.mark{display:flex;align-items:center;gap:11px;text-decoration:none;color:#fff;flex:none}
.mark svg{width:31px;height:31px;flex:none}
.mark b{font-size:20px;font-weight:800;letter-spacing:-.005em}
nav.main{display:flex;align-items:center;gap:30px}
nav.main a{color:#D6E1EA;text-decoration:none;font-size:15.5px;font-weight:550;white-space:nowrap}
nav.main a:hover{color:#fff}
nav.main a.on{color:#fff;text-decoration:underline;text-underline-offset:6px;text-decoration-thickness:2px;text-decoration-color:var(--gold)}
nav.main .btn{min-height:42px;padding:0 20px;font-size:14.5px}
@media (max-width:1000px){nav.main a:not(.btn){display:none}}

/* ---------- hero ---------- */
.hero{background:var(--navy);color:#fff;overflow:hidden}
.hero .wrap{display:grid;grid-template-columns:minmax(0,1.15fr) minmax(0,.85fr);gap:44px;align-items:center;padding-block:76px 84px}
.hero h1{
  font-weight:800;font-size:clamp(36px,5.6vw,58px);line-height:1.04;letter-spacing:-.022em;
  margin:0 0 22px;max-width:15ch;color:#fff;text-wrap:balance;
}
.hero p{font-size:17.5px;color:#AFC3D4;max-width:50ch;margin:0 0 32px}
.hero .ctas{display:flex;flex-wrap:wrap;gap:12px}
.fan{justify-self:end;width:min(400px,100%)}
.fan svg{width:100%;height:auto;display:block}
@media (max-width:900px){
  .hero .wrap{grid-template-columns:1fr;padding-block:52px 56px;gap:30px}
  .fan{justify-self:center;width:min(300px,78%);order:-1}
}

/* page hero (inner pages) */
.phero{background:var(--navy);color:#fff}
.phero .wrap{padding-block:56px 64px}
.crumb{font-size:13.5px;color:#7F97AC;margin:0 0 20px}
.crumb a{color:#AFC3D4;text-decoration:none}
.crumb a:hover{color:#fff}
.phero h1{font-weight:800;font-size:clamp(34px,5.6vw,56px);line-height:1.05;letter-spacing:-.022em;margin:0 0 18px;color:#fff;max-width:18ch;text-wrap:balance}
.phero p{font-size:17.5px;color:#AFC3D4;max-width:56ch;margin:0}
.phero .ctas{display:flex;flex-wrap:wrap;gap:12px;margin-top:30px}

/* ---------- bands ---------- */
.band{padding-block:76px}
.band.mist{background:var(--mist)}
.band.soft{background:var(--soft)}
.band.navy{background:var(--navy);color:#fff}
.band.navy h2,.band.navy h3{color:#fff}
.band.navy p{color:#AFC3D4}
h2{font-weight:800;font-size:clamp(27px,3.9vw,40px);line-height:1.1;letter-spacing:-.018em;margin:0 0 16px;max-width:20ch;text-wrap:balance}
h3{font-weight:700;font-size:20px;margin:0 0 9px;letter-spacing:-.008em}
.lede{color:var(--body);font-size:17.5px;max-width:58ch;margin:0}
.band-top{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:40px;align-items:start;margin-bottom:42px}
.band-top h2{margin-bottom:0}
@media (max-width:820px){.band-top{grid-template-columns:1fr;gap:16px;margin-bottom:32px}}

/* ---------- market cards ---------- */
.cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(290px,1fr));gap:22px}
.card{background:var(--paper);border:1px solid var(--line);padding:30px 30px 32px;min-width:0}
.card p{color:var(--body);font-size:15.5px;margin:0 0 16px;line-height:1.6}
.card a.more{font-weight:700;font-size:15px;text-decoration:none;border-bottom:2px solid var(--gold);padding-bottom:2px}

/* ---------- engine split ---------- */
.split{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:40px}
.split > div{min-width:0;border-top:3px solid var(--navy);padding-top:20px}
.split h3{font-size:clamp(23px,3vw,30px);font-weight:800;letter-spacing:-.015em;margin-bottom:12px}
.split .ac{font-weight:700;font-size:16px;margin:0 0 8px}
.split p{color:var(--body);font-size:15.5px;margin:0;line-height:1.6}

/* ---------- three-up ---------- */
.threeup{display:grid;grid-template-columns:repeat(auto-fit,minmax(230px,1fr));gap:34px;margin-top:44px}
.threeup > div{min-width:0}
.threeup h4{font-weight:700;font-size:17px;margin:0 0 8px}
.threeup p{color:var(--body);font-size:15px;margin:0;line-height:1.6}

/* ---------- LLP module map ---------- */
.axis{display:flex;justify-content:space-between;font-family:var(--mono);font-size:11.5px;color:#7F97AC;letter-spacing:.09em;text-transform:uppercase;margin-bottom:12px}
.modules{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:14px}
.mod{background:var(--navy-2);border:1px solid var(--line-dark);padding:22px 20px 24px;min-width:0}
.mod.hot{border-color:var(--gold)}
.mod h4{font-weight:700;font-size:16.5px;margin:0 0 12px;color:#fff}
.mod ul{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:6px}
.mod li{font-size:14.5px;color:#9FB6C9;font-family:var(--mono);letter-spacing:.01em}

/* ---------- check list ---------- */
.checks{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:12px 40px;margin-top:20px;list-style:none;padding:0}
.checks li{display:grid;grid-template-columns:auto minmax(0,1fr);gap:12px;align-items:start;font-size:15.5px;line-height:1.55}
.checks .tick{color:var(--gold);font-weight:700;line-height:1.4}
.band.navy .checks li{color:#C9D8E4}

/* ---------- definition table ---------- */
.deftable{border-top:1px solid var(--line)}
.band.navy .deftable{border-top-color:var(--line-dark)}
.defrow{
  display:grid;grid-template-columns:230px minmax(0,1fr);gap:8px 32px;
  padding-block:20px;border-bottom:1px solid var(--line);align-items:baseline;
}
.band.navy .defrow{border-bottom-color:var(--line-dark)}
.defrow b{font-weight:700;font-size:16.5px}
.defrow .mono{font-family:var(--mono);font-weight:500;color:var(--gold-deep)}
.band.navy .defrow .mono{color:var(--gold)}
.defrow span{color:var(--body);font-size:15.5px;line-height:1.6}
.band.navy .defrow span{color:#9FB6C9}
@media (max-width:660px){.defrow{grid-template-columns:1fr;gap:4px}}

/* ---------- quality columns ---------- */
.qcols{display:grid;grid-template-columns:repeat(auto-fit,minmax(215px,1fr));gap:32px;margin-top:40px}
.qcols > div{min-width:0;border-top:2px solid var(--navy);padding-top:16px}
.qcols h4{font-weight:700;font-size:16px;margin:0 0 7px}
.qcols p{color:var(--body);font-size:14.5px;margin:0;line-height:1.55}
.qcols .todo{color:var(--gold-deep);font-weight:600}

/* ---------- contact cards ---------- */
.ccards{display:grid;grid-template-columns:repeat(auto-fit,minmax(270px,1fr));gap:22px}
.ccard{background:var(--paper);border:1px solid var(--line);padding:28px 28px 30px;min-width:0}
.ccard .lbl{font-size:13.5px;color:var(--body);margin:0 0 6px}
.ccard .big{font-weight:800;font-size:23px;letter-spacing:-.015em;margin:0 0 12px;word-break:break-word}
.ccard p{color:var(--body);font-size:15px;margin:0 0 14px;line-height:1.6}
.ccard a.more{font-weight:700;font-size:15px;text-decoration:none;border-bottom:2px solid var(--gold);padding-bottom:2px}
.ccard .sel{user-select:all}

/* ---------- form ---------- */
.formwrap{background:var(--navy-2);border:1px solid var(--line-dark);padding:32px}
.toggle{display:flex;gap:0;margin-bottom:24px;border:1px solid var(--line-dark);border-radius:3px;overflow:hidden}
.toggle button{
  flex:1;font:inherit;font-size:15px;font-weight:700;padding:13px 10px;cursor:pointer;
  background:transparent;color:#9FB6C9;border:none;min-height:48px;
}
.toggle button.on{background:var(--gold);color:var(--gold-ink)}
form{display:grid;grid-template-columns:1fr 1fr;gap:18px 20px}
.f{display:flex;flex-direction:column;gap:7px;min-width:0}
.f.full{grid-column:1/-1}
.f label{font-size:13.5px;font-weight:650;color:#C9D8E4}
.f label i{color:var(--gold);font-style:normal}
.f input,.f select,.f textarea{
  font:inherit;font-size:16px;color:#fff;background:var(--navy);
  border:1px solid var(--line-dark);border-radius:3px;padding:12px 13px;min-height:48px;width:100%;
}
.f input.mono,.f textarea.mono{font-family:var(--mono);font-size:15px}
.f textarea{min-height:92px;resize:vertical;font-family:inherit}
.f input::placeholder,.f textarea::placeholder{color:#6B849B}
.f :is(input,select,textarea):focus{outline:2px solid var(--gold);outline-offset:0;border-color:var(--gold)}
form .btn{grid-column:1/-1}
.msg{grid-column:1/-1;margin:0;font-size:14.5px;color:#9FB6C9;min-height:1.3em}
.msg b{color:#fff}
.msg.err{color:#F0A08C}
.formnote{grid-column:1/-1;margin:0;font-size:13.5px;color:#7F97AC}
@media (max-width:560px){form{grid-template-columns:1fr}.formwrap{padding:24px}}

.quote-grid{display:grid;grid-template-columns:minmax(0,.85fr) minmax(0,1.15fr);gap:48px;align-items:start}
@media (max-width:900px){.quote-grid{grid-template-columns:1fr;gap:32px}}

/* ---------- cta band ---------- */
.ctaband{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:30px;align-items:center}
.ctaband h2{margin-bottom:10px}
.ctaband p{margin:0}
.ctaband .ctas{display:flex;gap:12px;flex-wrap:wrap}
@media (max-width:760px){.ctaband{grid-template-columns:1fr}}

/* ---------- notes ---------- */
.note{background:var(--soft);border-left:3px solid var(--gold);padding:18px 22px;margin-top:26px;color:var(--body);font-size:15.5px;max-width:70ch}
.note b{color:var(--ink)}
.band.navy .note{background:var(--navy-2);border-left-color:var(--gold);color:#AFC3D4}
.band.navy .note b{color:#fff}

/* ---------- footer ---------- */
footer.site{background:var(--navy);color:#8FA6BC;padding-block:54px 40px;font-size:14.5px}
.fcols{display:grid;grid-template-columns:minmax(0,1.6fr) repeat(3,minmax(0,1fr));gap:36px;padding-bottom:36px}
footer.site .mark{color:#fff;margin-bottom:16px}
.fblurb{margin:0;max-width:34ch;line-height:1.6}
footer.site h4{font-size:13px;font-weight:700;color:#fff;margin:0 0 14px}
footer.site ul{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:9px}
footer.site a{color:#8FA6BC;text-decoration:none}
footer.site a:hover{color:#fff}
footer.site .sel{user-select:all;word-break:break-word}
.fbot{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;padding-top:26px;border-top:1px solid var(--line-dark);font-size:13px;color:#6B849B}
.fbot .mono{font-family:var(--mono)}
@media (max-width:820px){.fcols{grid-template-columns:1fr 1fr;gap:30px}}
@media (max-width:520px){.fcols{grid-template-columns:1fr}}

/* engine cross-section */
figure.xsec{margin:44px 0 0;padding:0}
figure.xsec svg{width:100%;height:auto;display:block;background:var(--navy);border:1px solid var(--line-dark);border-radius:6px}
figure.xsec figcaption{margin-top:12px;font-size:14px;color:var(--body);line-height:1.55;max-width:60ch}
.band.navy figure.xsec figcaption{color:#9FB6C9}

/* ---------- photography ---------- */
.fanphoto{justify-self:end;width:min(400px,100%);position:relative}
.fanphoto img{
  width:100%;height:auto;display:block;border-radius:50%;
  border:1px solid #2E5175;filter:contrast(1.06) brightness(.96);
}
@media (max-width:900px){.fanphoto{justify-self:center;width:min(300px,76%);order:-1}}

figure.photoband{margin:0;padding:0;line-height:0;background:var(--navy)}
figure.photoband img{
  width:100%;height:clamp(240px,34vw,440px);object-fit:cover;display:block;
  filter:contrast(1.05) brightness(.9);
}