:root{
  --bg:#07080c;
  --panel: rgba(18,20,28,.72);
  --stroke: rgba(255,255,255,.10);
  --stroke2: rgba(255,255,255,.14);
  --text:#eef0f6;
  --muted:#9aa3b2;

  /* aircraft accent glows */
  --glow1: rgba(120,200,255,.16);
  --glow2: rgba(95,255,210,.10);
  --glow3: rgba(196,92,255,.10);
}

*{box-sizing:border-box}
body{
  margin:0;
  font-family: Arial, sans-serif;
  color:var(--text);
  background:
    radial-gradient(900px 520px at 18% 0%, var(--glow1) 0%, transparent 60%),
    radial-gradient(900px 520px at 92% 8%, var(--glow3) 0%, transparent 62%),
    radial-gradient(700px 420px at 50% 92%, var(--glow2) 0%, transparent 60%),
    var(--bg);
}
a{color:inherit;text-decoration:none}

/* =========================
   HEADER
   ========================= */
.topbar{
  position:sticky; top:0; z-index:50;
  border-bottom:1px solid var(--stroke);
  background: linear-gradient(180deg, rgba(18,20,28,.88), rgba(7,8,12,.78));
  backdrop-filter: blur(10px);
}
.ap-topbar{
  background: linear-gradient(180deg, rgba(16,22,34,.92), rgba(7,8,12,.78));
}
.topbar-inner{
  max-width:1600px;
  margin:0 auto;
  padding:14px 18px;
  display:flex;
  align-items:center;
  gap:14px;
}

/* Brand */
.brand{
  display:flex;
  align-items:center;
  gap:14px;
  min-width: 340px;
}
.logoMark{
  width:66px;
  height:66px;
  flex:0 0 auto;
  display:flex;
  align-items:center;
  justify-content:center;
  border-radius:20px;
  filter: drop-shadow(0 18px 40px rgba(0,0,0,.55));
}
.logoMark svg{
  width:66px;
  height:66px;
  display:block;
}

.brandText{
  display:flex;
  flex-direction:column;
  line-height:1.05;
}
.brandText .name{
  font-weight: 1000;
  font-size: 22px;
  letter-spacing: .25px;
  line-height: 1.0;
}
.brandText .name a{
  display:inline-block;
  padding:2px 0;
}
.brandText .tag{
  color: rgba(154,163,178,.92);
  font-size: 12.5px;
  margin-top: 6px;
  letter-spacing: .25px;
}

/* Search */
.searchbar{
  flex:1;
  display:flex;
  align-items:center;
  gap:10px;
  padding:10px 12px;
  border-radius:999px;
  border:1px solid var(--stroke);
  background: linear-gradient(180deg, rgba(255,255,255,.06), rgba(0,0,0,.20));
  box-shadow: 0 18px 50px rgba(0,0,0,.35);
  min-width: 260px;
}
.searchbar input{
  width:100%;
  background:transparent;
  border:none;
  outline:none;
  color:var(--text);
  font-size:14px;
}
.searchbar input::placeholder{
  color:rgba(154,163,178,.75);
}
.searchbar button{
  border:none;
  cursor:pointer;
  padding:9px 14px;
  border-radius:999px;
  color:var(--text);
  font-weight:900;
  background: linear-gradient(180deg, rgba(255,255,255,.08), rgba(0,0,0,.22));
  border:1px solid var(--stroke);
}
.searchbar button:hover{
  border-color:var(--stroke2);
}

/* Nav */
.topnav{
  display:flex;
  gap:10px;
  margin-left:auto;
}
.navlink{
  padding:10px 12px;
  border-radius:12px;
  border:1px solid transparent;
  color:var(--muted);
  font-weight:800;
  font-size:14px;
}
.navlink:hover{
  color:var(--text);
  border-color:var(--stroke);
  background: rgba(255,255,255,.05);
}

/* Mobile */
@media (max-width:980px){
  .topnav{display:none;}
  .brand{min-width:auto}
}