/* Aero Atlanta Flight Center: Aircraft Systems Overview
   Brand: slate blue #335772, gray #93959a, light gray #e7e8e9; Montserrat (approved web substitute for Proxima Nova) */
:root{
  --brand:#335772; --brand-600:#284760; --brand-700:#1d3649;
  --navy-950:#07111a; --navy-900:#0b1925; --navy-800:#112536; --navy-700:#183248;
  --sky:#7fb0d3; --sky-soft:rgba(127,176,211,.16);
  --gray:#93959a; --light:#e7e8e9; --paper:#f3f5f7; --white:#fff;
  --ink:#122230; --muted:#5b6a77; --line:rgba(18,34,48,.10);
  --radius:22px; --shadow:0 1px 2px rgba(12,28,42,.06),0 12px 32px -12px rgba(12,28,42,.22);
  --shadow-lg:0 2px 4px rgba(12,28,42,.06),0 30px 60px -20px rgba(12,28,42,.38);
  --font:"Montserrat",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  color-scheme:light;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{margin:0;background:var(--paper);color:var(--ink);font-family:var(--font);font-weight:400;line-height:1.55;
  -webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}
img{max-width:100%;display:block}
a{color:inherit}
.wrap{max-width:1200px;margin:0 auto;padding:0 max(20px,env(safe-area-inset-left,0px))}

/* eyebrow: the brand's widely tracked "FLIGHT CENTER" style */
.eyebrow{font-size:12px;font-weight:500;letter-spacing:.38em;text-transform:uppercase;color:var(--muted);margin:0 0 14px}
.eyebrow.on-dark{color:var(--sky)}

/* ---------- top bar ---------- */
.bar{position:absolute;inset:0 0 auto 0;z-index:5;padding-top:env(safe-area-inset-top,0px)}
.bar .wrap{display:flex;align-items:center;justify-content:space-between;height:84px}
.bar .logo img{height:54px;width:auto}
.crumbs{display:flex;gap:10px;align-items:center;font-size:13px;font-weight:500;letter-spacing:.06em;color:rgba(255,255,255,.72)}
.crumbs a{text-decoration:none;color:rgba(255,255,255,.72)}
.crumbs a:hover{color:#fff}
.crumbs .sep{opacity:.4}
.crumbs [aria-current]{color:#fff}

/* ---------- hero ---------- */
.hero{position:relative;overflow:hidden;color:#fff;isolation:isolate;
  background:
    radial-gradient(900px 600px at 78% 42%, rgba(127,176,211,.30), transparent 60%),
    radial-gradient(700px 500px at 10% 110%, rgba(51,87,114,.55), transparent 60%),
    linear-gradient(160deg,var(--navy-950) 0%,var(--navy-900) 38%,var(--navy-700) 100%)}
.hero::before{content:"";position:absolute;inset:0;z-index:-1;opacity:.5;
  background-image:radial-gradient(rgba(255,255,255,.08) 1px,transparent 1.2px);background-size:26px 26px;
  -webkit-mask-image:radial-gradient(ellipse at 70% 40%,#000 20%,transparent 75%);mask-image:radial-gradient(ellipse at 70% 40%,#000 20%,transparent 75%)}
.hero .swoosh{position:absolute;z-index:-1;fill:#fff;opacity:.05;width:min(1100px,120vw);right:-18%;top:-6%;pointer-events:none}
.hero .wrap{position:relative;display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.05fr);align-items:center;gap:24px;
  min-height:min(820px,100svh);padding-top:120px;padding-bottom:72px}
.hero h1{font-size:clamp(40px,6.2vw,76px);line-height:1.02;font-weight:600;letter-spacing:-.02em;margin:0 0 22px}
.hero h1 .thin{display:block;font-weight:300;color:#d7e4ee}
.hero .lead{font-size:clamp(16px,1.6vw,19px);font-weight:300;color:rgba(255,255,255,.80);max-width:34em;margin:0 0 34px}
.cta{display:flex;flex-wrap:wrap;gap:14px;align-items:center}
.btn{display:inline-flex;align-items:center;gap:10px;height:52px;padding:0 26px;border-radius:999px;font-weight:600;font-size:15px;
  letter-spacing:.02em;text-decoration:none;transition:transform .2s ease,background .2s ease,box-shadow .2s ease,color .2s ease}
.btn svg{width:18px;height:18px;transition:transform .2s ease}
.btn:hover svg{transform:translateX(3px)}
.btn.primary{background:#fff;color:var(--brand-700);box-shadow:0 10px 30px -10px rgba(127,176,211,.7)}
.btn.primary:hover{transform:translateY(-1px);box-shadow:0 16px 40px -12px rgba(127,176,211,.9)}
.btn.ghost{color:#fff;border:1px solid rgba(255,255,255,.28)}
.btn.ghost:hover{background:rgba(255,255,255,.08)}
.btn:focus-visible,.card:focus-visible{outline:3px solid var(--sky);outline-offset:3px}
.hero .facts{display:flex;flex-wrap:wrap;gap:10px 28px;margin:44px 0 0;padding:0;list-style:none;font-size:13px;color:rgba(255,255,255,.6);letter-spacing:.04em}
.hero .facts li{display:flex;align-items:center;gap:9px}
.hero .facts li::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--sky);box-shadow:0 0 0 4px rgba(127,176,211,.18)}
.hero .art{position:relative;margin-right:-6vw}
.hero .art img{width:100%;height:auto;filter:drop-shadow(0 40px 50px rgba(0,0,0,.45));animation:float 9s ease-in-out infinite}
@keyframes float{0%,100%{transform:translateY(0) rotate(0)}50%{transform:translateY(-12px) rotate(-.6deg)}}

/* ---------- sections ---------- */
section.block{padding:96px 0}
.head{display:flex;flex-wrap:wrap;align-items:end;justify-content:space-between;gap:16px 40px;margin-bottom:40px}
.head h2{font-size:clamp(30px,3.6vw,44px);line-height:1.1;font-weight:600;letter-spacing:-.015em;margin:0}
.head p{margin:0;max-width:30em;color:var(--muted);font-weight:300;font-size:17px}

/* system cards */
.grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:28px}
.card{position:relative;display:flex;flex-direction:column;background:var(--white);border-radius:var(--radius);overflow:hidden;
  text-decoration:none;color:inherit;box-shadow:var(--shadow);border:1px solid var(--line);transition:transform .35s cubic-bezier(.2,.7,.2,1),box-shadow .35s ease}
a.card:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg)}
.card .media{position:relative;aspect-ratio:16/10;overflow:hidden;
  background:radial-gradient(120% 90% at 50% 18%,#ffffff 0%,#eef2f6 46%,#d9e2ea 100%)}
.card .media img{position:absolute;inset:6% 4% 0 4%;width:92%;height:94%;object-fit:contain;object-position:center 60%;
  transition:transform .6s cubic-bezier(.2,.7,.2,1);filter:drop-shadow(0 18px 22px rgba(20,40,60,.18))}
a.card:hover .media img{transform:scale(1.045)}
.card .media.dark{background:radial-gradient(120% 100% at 50% 0%,#1d3a52 0%,#122a3c 50%,#0b1925 100%)}
.card .tag{position:absolute;top:18px;left:18px;z-index:2;font-size:11px;font-weight:600;letter-spacing:.3em;text-transform:uppercase;
  color:var(--brand);background:rgba(255,255,255,.88);backdrop-filter:blur(6px);-webkit-backdrop-filter:blur(6px);padding:7px 12px 7px 14px;border-radius:999px}
.card .media.dark .tag{color:#d7e4ee;background:rgba(255,255,255,.08)}
.soon{position:absolute;top:18px;right:18px;z-index:2;font-size:12px;font-weight:600;letter-spacing:.06em;color:#0b1925;background:#f2c14e;padding:7px 13px;border-radius:999px;box-shadow:0 6px 18px -6px rgba(242,193,78,.7)}
.card .body{padding:28px 30px 30px;display:flex;flex-direction:column;gap:14px;flex:1}
.card h3{font-size:30px;font-weight:600;letter-spacing:-.01em;margin:0;line-height:1.1}
.card .desc{margin:0;color:var(--muted);font-weight:400;font-size:15.5px}
.models{list-style:none;margin:4px 0 0;padding:0;display:grid;gap:8px}
.models li{display:flex;justify-content:space-between;gap:12px;align-items:baseline;padding:11px 14px;border-radius:12px;background:var(--paper);font-size:14.5px;font-weight:500}
.models li span{color:var(--muted);font-weight:400;font-size:13px;letter-spacing:.08em;text-transform:uppercase}
.card .foot{margin-top:auto;padding-top:10px;display:flex;align-items:center;justify-content:space-between;font-weight:600;font-size:15px;color:var(--brand)}
.card .foot .go{display:inline-flex;align-items:center;gap:8px}
.card .foot svg{width:18px;height:18px;transition:transform .25s ease}
a.card:hover .foot svg{transform:translateX(4px)}
.card.disabled{cursor:default}
.card.disabled .foot{color:var(--gray)}

/* schematic art (electrical) */
.schem{position:absolute;inset:0;width:100%;height:100%}
.schem .wire{fill:none;stroke:rgba(215,228,238,.30);stroke-width:2.4;stroke-linecap:round;stroke-linejoin:round}
.schem .bus{fill:none;stroke:rgba(215,228,238,.75);stroke-width:7;stroke-linecap:round}
.schem .flow{fill:none;stroke:var(--sky);stroke-width:2.6;stroke-linecap:round;stroke-dasharray:6 16;animation:flow 1.6s linear infinite;filter:drop-shadow(0 0 4px rgba(127,176,211,.9))}
.schem .comp{fill:#16314a;stroke:rgba(215,228,238,.8);stroke-width:2.4}
.schem .lbl{fill:rgba(215,228,238,.75);font:600 11px var(--font);letter-spacing:.18em}
.schem .glow{fill:var(--sky);opacity:.9;filter:drop-shadow(0 0 6px rgba(127,176,211,1))}
@keyframes flow{to{stroke-dashoffset:-44}}

/* features */
.features{background:var(--white);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.feat{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:28px}
.feat article{padding:30px 28px;border-radius:18px;background:linear-gradient(180deg,var(--paper),#fff);border:1px solid var(--line)}
.feat .ico{width:52px;height:52px;border-radius:14px;display:grid;place-items:center;background:var(--brand);color:#fff;margin-bottom:20px;box-shadow:0 10px 24px -10px rgba(51,87,114,.8)}
.feat .ico svg{width:26px;height:26px}
.feat h3{margin:0 0 8px;font-size:20px;font-weight:600}
.feat p{margin:0;color:var(--muted);font-size:15px}

/* engine page model cards */
.specs{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:8px;margin:2px 0 4px}
.specs div{background:var(--paper);border-radius:12px;padding:12px 14px}
.specs b{display:block;font-size:22px;font-weight:600;letter-spacing:-.01em;color:var(--brand-700);line-height:1.1}
.specs span{font-size:11px;font-weight:600;letter-spacing:.2em;text-transform:uppercase;color:var(--muted)}
.hero.compact .wrap{min-height:0;grid-template-columns:minmax(0,1fr);padding-top:150px;padding-bottom:110px}
.hero.compact h1{font-size:clamp(40px,5.6vw,68px)}
.lift{margin-top:-64px;position:relative;z-index:3}
.back{display:inline-flex;align-items:center;gap:8px;margin-top:36px;font-weight:600;color:var(--brand);text-decoration:none}
.back svg{width:18px;height:18px}

/* footer */
footer{background:var(--navy-950);color:rgba(255,255,255,.66);padding:56px 0 calc(48px + env(safe-area-inset-bottom,0px));font-size:13.5px}
footer .wrap{display:flex;flex-wrap:wrap;gap:28px 48px;align-items:center;justify-content:space-between}
footer img{height:40px;width:auto;opacity:.95}
footer p{margin:0;max-width:46em}
footer small{display:block;margin-top:6px;color:rgba(255,255,255,.42);letter-spacing:.04em}

@media (max-width:980px){
  .hero .wrap{grid-template-columns:1fr;padding-top:112px;padding-bottom:56px;min-height:0}
  .hero .art{order:-1;margin:0 -10vw 0 -4vw;max-width:none}
  .hero .art img{max-height:46vh;width:auto;margin:0 auto}
  .grid,.feat{grid-template-columns:1fr}
  section.block{padding:72px 0}
}
@media (max-width:560px){
  .bar .wrap{height:72px}
  .bar .logo img{height:36px}
  .crumbs{display:none}
  .card .body{padding:22px 22px 24px}
  .card h3{font-size:26px}
  .specs b{font-size:19px}
  .btn{height:50px;padding:0 22px}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important;scroll-behavior:auto!important}
}