/* Design: airfield apron. Concrete greys, deep navy ink, taxiway-marking yellow. */
:root{
  --concrete:#e3e5e1; --paper:#f3f4f0; --ink:#13222d; --night:#0f1d27;
  --yellow:#f0c02f; --steel:#3b6a88; --line:#c3c8c3; --muted:#4a5a65;
  --w:1280px;
  --head:"Bahnschrift","DIN Alternate","Roboto Condensed","Arial Narrow",system-ui,sans-serif;
  --body:"Segoe UI",system-ui,-apple-system,"Helvetica Neue",Arial,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:84px}
body{margin:0;font-family:var(--body);font-size:1.0625rem;line-height:1.65;color:var(--ink);background:var(--paper)}
img,svg{max-width:100%;display:block}
a{color:inherit}
:focus-visible{outline:3px solid var(--steel);outline-offset:3px}
.wrap{width:min(var(--w),100% - 3rem);margin-inline:auto}
h1,h2,h3{font-family:var(--head);line-height:1.1;letter-spacing:-.01em;margin:0 0 1rem}
h1{font-size:clamp(2.5rem,5.6vw,4.6rem);font-weight:700}
h2{font-size:clamp(2rem,3.6vw,3rem);font-weight:700}
h3{font-size:1.35rem;font-weight:600}
p{margin:0 0 1.1rem;max-width:68ch}
section{padding:clamp(4rem,8vw,7rem) 0}

/* Header */
.site-header{position:sticky;top:0;z-index:20;background:var(--paper);border-bottom:2px solid var(--ink)}
.bar{display:flex;align-items:center;justify-content:space-between;min-height:68px;gap:1rem}
.brand{display:flex;align-items:center;gap:.7rem;text-decoration:none;font-family:var(--head);font-weight:700;font-size:1.3rem}
.brand small{font-weight:400;font-size:.85em;color:var(--muted)}
.mark{width:26px;height:26px;background:var(--yellow);border:2px solid var(--ink);position:relative}
.mark::after{content:"";position:absolute;inset:4px 5px;background:var(--ink);clip-path:polygon(50% 0,100% 100%,50% 75%,0 100%)}
.nav{display:flex;align-items:center;gap:2rem}
.nav a{text-decoration:none;font-weight:500;padding:.3rem 0;border-bottom:2px solid transparent;transition:border-color .2s}
.nav a:hover{border-color:var(--yellow)}
.nav .nav-cta{background:var(--ink);color:var(--paper);padding:.55rem 1.2rem;border:2px solid var(--ink);transition:background .2s,color .2s}
.nav .nav-cta:hover{background:var(--yellow);color:var(--ink)}
.nav-toggle{display:none;font:inherit;font-weight:600;background:none;border:2px solid var(--ink);padding:.4rem .9rem;cursor:pointer;color:var(--ink)}

/* Buttons */
.btn{display:inline-block;font:inherit;font-weight:600;text-decoration:none;padding:.95rem 1.8rem;border:2px solid var(--ink);cursor:pointer;transition:transform .2s,background .2s,color .2s}
.btn-primary{background:var(--yellow);color:var(--ink)}
.btn-primary:hover{transform:translateY(-2px);background:var(--ink);color:var(--yellow)}
.btn-line{background:transparent;color:var(--ink)}
.btn-line:hover{background:var(--ink);color:var(--paper)}

/* Hero */
.hero{background:var(--concrete);padding:clamp(3rem,6vw,5.5rem) 0 0;border-bottom:2px solid var(--ink)}
.hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:clamp(2rem,5vw,5rem);align-items:stretch}
.hero-copy{padding-bottom:clamp(2.5rem,5vw,4.5rem)}
.lead{font-size:1.25rem;color:var(--muted);margin-bottom:2rem}
.actions{display:flex;flex-wrap:wrap;gap:1rem}
.hero-panel{background:var(--night);color:var(--paper);position:relative;overflow:hidden;min-height:440px;margin-bottom:-1px}
.plane-art{position:absolute;inset:0;width:100%;height:100%}
.centerline{stroke:var(--yellow);stroke-width:4;stroke-dasharray:26 18;opacity:.8}
.hold{fill:var(--yellow);opacity:.9}
.plane{fill:var(--paper);transform-origin:200px 210px;animation:taxi 1.6s cubic-bezier(.2,.7,.2,1) both}
.plane-art .plane{transform:translateY(0) scale(.82)}
@keyframes taxi{from{transform:translateY(120px) scale(.82);opacity:0}to{transform:translateY(0) scale(.82);opacity:1}}
.panel-note{position:absolute;left:1.4rem;bottom:1.2rem;margin:0;font-family:var(--head);font-size:1.05rem;line-height:1.35;background:var(--yellow);color:var(--ink);padding:.6rem .9rem}
.facts{display:grid;grid-template-columns:repeat(3,1fr);border-top:2px solid var(--ink);margin-top:0}
.facts p{margin:0;padding:1.5rem 1.5rem 1.6rem 0;max-width:none;font-size:.98rem;color:var(--muted)}
.facts p+p{padding-left:1.5rem;border-left:2px solid var(--ink)}
.facts strong{display:block;font-family:var(--head);font-size:1.25rem;color:var(--ink);margin-bottom:.2rem}

/* About */
.about-grid{display:grid;grid-template-columns:1.4fr .8fr;gap:clamp(2rem,6vw,6rem);align-items:start}
.placeholder{margin-top:2rem;min-height:230px;display:flex;align-items:flex-end;padding:1.2rem;border:2px solid var(--ink);color:var(--muted);font-size:.95rem;
  background:repeating-linear-gradient(135deg,var(--concrete) 0 18px,var(--paper) 18px 36px)}
.placeholder span{background:var(--paper);padding:.3rem .6rem}
.glance{background:var(--ink);color:var(--paper);padding:2rem;position:sticky;top:96px;border-top:10px solid var(--yellow)}
.glance h3{margin-bottom:1.2rem}
.glance dl{margin:0}
.glance dt{font-size:.9rem;color:#a9b7c0;margin-top:1rem}
.glance dd{margin:.1rem 0 0;font-weight:500}
.glance a{color:var(--yellow)}

/* Services: departure-board rows */
.services{background:var(--night);color:var(--paper)}
.section-head{display:grid;grid-template-columns:1fr 1fr;gap:2rem;align-items:end;margin-bottom:3rem}
.section-head p{color:#b7c4cc;margin:0}
.board{border-top:2px solid var(--yellow)}
.board details{border-bottom:1px solid #35495a}
.board summary{display:grid;grid-template-columns:1.2fr 1fr 2rem;gap:1.5rem;align-items:center;padding:1.6rem 0;cursor:pointer;list-style:none;transition:padding-left .25s,background .25s}
.board summary::-webkit-details-marker{display:none}
.board summary::after{content:"+";font-family:var(--head);font-size:2rem;color:var(--yellow);text-align:right;line-height:1}
.board details[open] summary::after{content:"\2212"}
.board summary:hover{padding-left:1rem;background:#162a37}
.s-name{font-family:var(--head);font-size:clamp(1.3rem,2.2vw,1.9rem);font-weight:600}
.s-short{color:#b7c4cc}
.board details p{padding:0 3.5rem 1.8rem 0;margin:0;max-width:72ch;color:#d3dde3}

/* Why */
.why-grid{display:grid;grid-template-columns:.8fr 1.2fr;gap:clamp(2rem,6vw,6rem)}
.why-intro{position:sticky;top:110px;align-self:start}
.why-intro p{color:var(--muted)}
.why-list article{padding:1.6rem 0 1.6rem 1.6rem;border-left:8px solid var(--yellow);margin-bottom:1.2rem;background:var(--concrete);transition:border-color .25s,background .25s}
.why-list article:hover{border-color:var(--steel);background:#d9dcd7}
.why-list h3{margin-bottom:.4rem}
.why-list p{margin:0;padding-right:1.6rem;color:var(--muted)}

/* Contact */
.contact{background:var(--concrete);border-top:2px solid var(--ink)}
.contact-grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:clamp(2rem,6vw,6rem)}
address{font-style:normal;margin-top:2rem;padding:1.5rem;border:2px solid var(--ink);background:var(--paper);display:inline-block;min-width:min(100%,320px)}
address a{font-weight:600;text-decoration-color:var(--yellow);text-decoration-thickness:3px;text-underline-offset:4px}
.form{background:var(--paper);border:2px solid var(--ink);padding:clamp(1.5rem,3vw,2.5rem)}
.field{margin-bottom:1.3rem}
.field label{display:block;font-weight:600;margin-bottom:.35rem}
.field input,.field select,.field textarea{width:100%;font:inherit;color:var(--ink);background:#fff;border:2px solid var(--line);padding:.8rem .9rem;border-radius:0;transition:border-color .2s}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:var(--ink)}
.field.invalid input,.field.invalid textarea{border-color:#a2321f}
.err{display:block;min-height:1.2em;font-size:.9rem;color:#a2321f;margin-top:.25rem}
.status{margin:1rem 0 0;font-weight:500}

/* Footer */
.site-footer{background:var(--night);color:#d3dde3;padding:3rem 0 1.5rem}
.foot{display:flex;justify-content:space-between;gap:2rem;flex-wrap:wrap}
.foot strong{font-family:var(--head);font-size:1.3rem;color:var(--paper)}
.foot p{margin-top:.5rem}
.foot nav{display:flex;gap:1.5rem;flex-wrap:wrap;align-self:flex-start}
.foot a{text-decoration-color:var(--yellow);text-underline-offset:4px}
.legal{margin-top:2rem;padding-top:1.2rem;border-top:1px solid #35495a;font-size:.9rem;color:#9fb0ba}
.legal p{margin:0}

/* Scroll reveal (only when JS is on) */
.js .rv{opacity:0;transform:translateY(14px);transition:opacity .6s ease,transform .6s ease}
.js .rv.in{opacity:1;transform:none}

/* Responsive */
@media (max-width:960px){
  .hero-grid,.about-grid,.why-grid,.contact-grid,.section-head{grid-template-columns:1fr}
  .hero-panel{min-height:340px}
  .glance,.why-intro{position:static}
  .facts{grid-template-columns:1fr}
  .facts p,.facts p+p{padding:1.1rem 0;border-left:0}
  .facts p+p{border-top:1px solid var(--ink)}
  .board summary{grid-template-columns:1fr 2rem}
  .s-short{grid-column:1;grid-row:2;font-size:.95rem}
  .board summary::after{grid-column:2;grid-row:1}
  .board details p{padding-right:0}
}
@media (max-width:760px){
  .nav-toggle{display:block}
  .nav{display:none;position:absolute;top:100%;left:0;right:0;flex-direction:column;align-items:stretch;gap:0;background:var(--paper);border-bottom:2px solid var(--ink);padding:.5rem 1.5rem 1.2rem}
  .nav.open{display:flex}
  .nav a{padding:.8rem 0;border-bottom:1px solid var(--line)}
  .nav .nav-cta{margin-top:.8rem;text-align:center}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  .plane{animation:none}
  .js .rv{opacity:1;transform:none;transition:none}
  *{transition-duration:.01ms!important}
}