:root{
  --bg:#020a17;
  --bg2:#06162c;
  --panel:#081d38;
  --panel2:#0b2443;
  --cyan:#14dcff;
  --blue:#078bff;
  --text:#f5fbff;
  --muted:#a8bdd0;
  --line:rgba(93,205,255,.18);
  --shadow:0 24px 70px rgba(0,0,0,.28);
  --radius:22px;
  --max:1180px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:88px}
body{margin:0;background:radial-gradient(circle at 70% 0%,#092b52 0,#020a17 35%,#020811 75%);color:var(--text);font-family:Inter,Segoe UI,Roboto,Arial,sans-serif;line-height:1.6}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font:inherit}
.skip-link{position:absolute;left:-999px;top:auto}
.skip-link:focus{left:12px;top:12px;z-index:9999;background:#fff;color:#000;padding:10px 14px;border-radius:8px}
.container{width:min(calc(100% - 40px),var(--max));margin:0 auto}
.section{padding:92px 0}
.section-alt{background:linear-gradient(180deg,rgba(9,30,57,.72),rgba(3,13,28,.7));border-block:1px solid var(--line)}
.eyebrow{margin:0 0 12px;color:var(--cyan);font-weight:800;letter-spacing:.14em;text-transform:uppercase;font-size:.78rem}
h1,h2,h3{line-height:1.08;margin-top:0}
h1{font-size:clamp(2.3rem,5vw,5rem);letter-spacing:-.045em;margin-bottom:0}
h2{font-size:clamp(2rem,4vw,3.65rem);letter-spacing:-.035em;margin-bottom:16px}
h3{font-size:1.3rem}
p{color:var(--muted)}
.lead{font-size:1.16rem;max-width:650px}
.site-header{position:sticky;top:0;z-index:100;background:rgba(2,10,23,.82);backdrop-filter:blur(18px);border-bottom:1px solid rgba(72,198,255,.15)}
.nav-wrap{height:76px;width:min(calc(100% - 36px),1240px);margin:auto;display:flex;align-items:center;gap:24px}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:1rem;letter-spacing:-.02em;white-space:nowrap}
.brand img{width:42px;height:42px;border-radius:50%;box-shadow:0 0 28px rgba(20,220,255,.2)}
.brand span span{color:var(--cyan)}
.nav-menu{margin-left:auto;display:flex;align-items:center;gap:22px}
.nav-menu a{font-size:.9rem;color:#dcebf6;transition:.2s}
.nav-menu a:hover{color:var(--cyan)}
.lang-switch{display:flex;align-items:center;gap:4px;border:1px solid var(--line);border-radius:999px;padding:4px}
.lang-switch button{border:0;background:transparent;color:#7f9bb2;padding:5px 8px;border-radius:999px;cursor:pointer;font-weight:800;font-size:.76rem}
.lang-switch button.active{background:linear-gradient(135deg,var(--blue),var(--cyan));color:#00101c}
.menu-toggle{display:none;background:none;border:0;width:44px;height:44px;padding:10px;cursor:pointer}
.menu-toggle span{display:block;height:2px;background:#fff;margin:6px 0;border-radius:3px}
.hero{position:relative;min-height:min(76vw,820px);background:#020817;overflow:hidden}
.hero picture,.hero picture img{width:100%;height:100%}
.hero picture{position:absolute;inset:0}
.hero img{object-fit:cover;object-position:center}
.hero-shade{position:absolute;inset:0;background:linear-gradient(180deg,rgba(0,0,0,.05) 45%,rgba(2,10,23,.94) 100%)}
.hero-actions{position:absolute;left:50%;bottom:46px;transform:translateX(-50%);display:flex;gap:12px;z-index:2}
.btn{display:inline-flex;align-items:center;justify-content:center;min-height:48px;padding:0 20px;border-radius:999px;font-weight:800;font-size:.94rem;border:1px solid transparent;transition:transform .2s,box-shadow .2s,background .2s}
.btn:hover{transform:translateY(-2px)}
.btn-primary{background:linear-gradient(135deg,var(--blue),var(--cyan));color:#00101e;box-shadow:0 10px 34px rgba(0,182,255,.25)}
.btn-secondary{background:#fff;color:#03142b}
.btn-ghost{border-color:rgba(255,255,255,.42);background:rgba(2,10,23,.55);backdrop-filter:blur(8px)}
.intro-grid{display:grid;grid-template-columns:1.08fr .92fr;gap:70px;align-items:end}
.intro-copy{font-size:1.08rem}
.pill-row{display:flex;gap:8px;flex-wrap:wrap;margin-top:24px}
.pill-row span{border:1px solid var(--line);background:rgba(11,36,67,.65);color:#cae9f7;padding:7px 12px;border-radius:999px;font-size:.82rem}
.section-head{max-width:760px;margin-bottom:42px}
.section-head p:last-child{font-size:1.05rem}
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.step-card,.content-card,.hardware-card{border:1px solid var(--line);background:linear-gradient(145deg,rgba(11,36,67,.95),rgba(4,15,31,.88));border-radius:var(--radius);padding:26px;box-shadow:var(--shadow)}
.step-card{min-height:270px}
.step-no{display:inline-flex;width:48px;height:48px;align-items:center;justify-content:center;border-radius:50%;background:rgba(20,220,255,.1);border:1px solid rgba(20,220,255,.3);color:var(--cyan);font-weight:900;margin-bottom:34px}
.cards{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.content-card{position:relative;min-height:300px;padding-top:82px}
.card-icon{position:absolute;top:24px;left:24px;width:48px;height:48px;border-radius:15px;display:flex;align-items:center;justify-content:center;font-weight:900;color:var(--cyan);border:1px solid rgba(20,220,255,.25);background:rgba(20,220,255,.08)}
.status{position:absolute;right:18px;top:20px;padding:5px 9px;border-radius:999px;background:rgba(255,255,255,.06);color:#9ec3d8;font-size:.7rem;text-transform:uppercase;font-weight:800;letter-spacing:.06em}
.visual-break{height:390px;overflow:hidden;border-block:1px solid var(--line)}
.visual-break img{width:100%;height:100%;object-fit:cover;object-position:center}
.split{display:grid;grid-template-columns:1.15fr .85fr;gap:72px;align-items:center}
.text-link{display:inline-block;margin-top:12px;color:var(--cyan);font-weight:800}
.score-card{border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;background:rgba(5,20,40,.7)}
.score-card div{display:flex;align-items:center;justify-content:space-between;padding:17px 22px;border-bottom:1px solid var(--line)}
.score-card div:last-child{border-bottom:0}
.score-card span{color:#b5cada}
.score-card strong{font-size:1.5rem;color:var(--cyan)}
.hardware-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
.hardware-card{display:grid;grid-template-columns:52px 1fr;column-gap:16px;align-items:start}
.hardware-card>span{grid-row:1/3;color:var(--cyan);font-weight:900;font-size:1.5rem}
.hardware-card h3{margin-bottom:6px}
.hardware-card p{margin:0}
.hardware-card{transition:transform .2s ease,border-color .2s ease,background .2s ease}
.hardware-card:hover{transform:translateY(-3px);border-color:rgba(20,220,255,.42);background:linear-gradient(145deg,rgba(12,45,80,.98),rgba(4,15,31,.92))}
.about-section{background:radial-gradient(circle at 15% 40%,rgba(0,170,255,.13),transparent 32%)}
.about-grid{display:grid;grid-template-columns:.75fr 1.25fr;gap:70px;align-items:center}
.about-image{position:relative}
.about-image:before{content:"";position:absolute;inset:12%;filter:blur(50px);background:rgba(20,220,255,.23);border-radius:50%}
.about-image img{position:relative;border-radius:50%;box-shadow:0 30px 80px rgba(0,0,0,.45)}
.quote{margin-top:26px;padding:18px 20px;border-left:3px solid var(--cyan);background:rgba(11,36,67,.55);font-size:1.2rem;font-weight:800}
.contact-section{padding-top:40px}
.contact-box{display:grid;grid-template-columns:1.2fr .8fr;gap:30px;align-items:center;background:linear-gradient(135deg,#092a4f,#06162b 60%,#07213d);border:1px solid rgba(54,202,255,.28);border-radius:30px;padding:44px;box-shadow:var(--shadow)}
.contact-box h2{margin-bottom:10px}
.social-buttons{display:flex;gap:12px;justify-content:flex-end;flex-wrap:wrap}
footer{border-top:1px solid var(--line);padding:42px 0 48px;background:#01060e}
.footer-grid{display:grid;grid-template-columns:1fr auto auto;gap:40px;align-items:center}
.footer-logo{width:210px;margin-bottom:6px}
.footer-grid p{margin:0;font-size:.86rem}
.footer-links{display:flex;gap:18px;flex-wrap:wrap;font-size:.85rem;color:#a8bdd0}
.copyright{color:#6f889d;font-size:.82rem}
.reveal{opacity:0;transform:translateY(22px);transition:opacity .7s ease,transform .7s ease}
.reveal.visible{opacity:1;transform:none}
@media (prefers-reduced-motion: reduce){
  *{scroll-behavior:auto!important}
  .reveal{opacity:1;transform:none;transition:none}
}
@media(max-width:980px){
  .menu-toggle{display:block;margin-left:auto}
  .nav-menu{position:absolute;left:18px;right:18px;top:84px;display:none;flex-direction:column;align-items:stretch;gap:0;background:#06162c;border:1px solid var(--line);border-radius:18px;padding:10px;box-shadow:var(--shadow)}
  .nav-menu.open{display:flex}
  .nav-menu a{padding:12px 14px;border-bottom:1px solid rgba(255,255,255,.06)}
  .nav-menu a:last-child{border-bottom:0}
  .lang-switch{margin-left:0}
  .steps,.cards{grid-template-columns:repeat(2,1fr)}
  .intro-grid,.split,.about-grid{grid-template-columns:1fr;gap:38px}
  .about-image{max-width:430px;margin:auto}
  .hero{min-height:65vw}
  .footer-grid{grid-template-columns:1fr;gap:24px}
}
@media(max-width:640px){
  .container{width:min(calc(100% - 28px),var(--max))}
  .section{padding:68px 0}
  .nav-wrap{width:calc(100% - 22px);height:70px;gap:10px}
  .brand>span{display:none}
  .brand img{width:40px;height:40px}
  .lang-switch{order:2}
  .menu-toggle{order:3}
  .hero{min-height:74vw;background:#020817}
  .hero img{object-fit:contain;object-position:center top}
  .hero-shade{background:linear-gradient(180deg,transparent 55%,rgba(2,10,23,.96) 100%)}
  .hero-actions{bottom:16px;width:calc(100% - 28px);gap:8px}
  .hero-actions .btn{flex:1;min-height:42px;padding:0 12px;font-size:.8rem}
  .intro-grid{gap:24px}
  h1{font-size:2.45rem}
  h2{font-size:2.15rem}
  .steps,.cards,.hardware-grid{grid-template-columns:1fr}
  .step-card,.content-card{min-height:auto}
  .visual-break{height:250px}
  .contact-box{grid-template-columns:1fr;padding:28px}
  .social-buttons{justify-content:flex-start}
  .footer-links{gap:12px}
}


/* V3 refinements */
.quick-nav{padding:0 0 46px}
.quick-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}
.quick-card{display:grid;grid-template-columns:auto 1fr auto;gap:13px;align-items:center;padding:18px;border:1px solid var(--line);border-radius:18px;background:rgba(7,27,52,.72);transition:transform .2s,border-color .2s,background .2s}
.quick-card:hover{transform:translateY(-3px);border-color:rgba(20,220,255,.45);background:rgba(10,40,73,.88)}
.quick-kicker{font-weight:900;color:var(--cyan);font-size:.8rem}
.quick-card strong{display:block;font-size:.94rem}
.quick-card small{display:block;color:var(--muted);font-size:.76rem;margin-top:2px}
.quick-card b{font-size:1.25rem;color:var(--cyan)}

.videos-section{background:radial-gradient(circle at 80% 20%,rgba(0,154,255,.11),transparent 28%)}
.video-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.video-card{overflow:hidden;border:1px solid var(--line);border-radius:var(--radius);background:linear-gradient(145deg,rgba(11,36,67,.95),rgba(4,15,31,.92));box-shadow:var(--shadow)}
.video-thumb{height:180px;position:relative;display:flex;align-items:flex-end;padding:22px;background-image:linear-gradient(145deg,rgba(2,10,23,.1),rgba(2,10,23,.78)),url('/assets/journey-banner.webp');background-size:cover;background-position:center}
.video-thumb:after{content:"▶";position:absolute;inset:50% auto auto 50%;transform:translate(-50%,-50%);width:52px;height:52px;display:grid;place-items:center;border-radius:50%;background:rgba(2,10,23,.72);border:1px solid rgba(255,255,255,.35);backdrop-filter:blur(7px);font-size:1rem}
.video-thumb span{font-weight:900;font-size:1.3rem;letter-spacing:-.02em}
.video-thumb b{margin-left:auto;padding:5px 8px;border-radius:999px;background:var(--cyan);color:#00101c;font-size:.65rem;letter-spacing:.08em}
.thumb-airbus{background-position:50% 64%}
.thumb-cockpit{background-image:linear-gradient(145deg,rgba(2,10,23,.18),rgba(2,10,23,.82)),url('/assets/hero.webp');background-position:center}
.video-body{padding:22px}
.video-body h3{margin-bottom:8px}
.video-body p{margin:0}
.videos-cta{text-align:center;margin-top:30px}

.brand-strip{display:flex;flex-wrap:wrap;gap:10px;margin-top:30px}
.brand-strip span{padding:9px 14px;border-radius:999px;border:1px solid var(--line);background:rgba(20,220,255,.06);color:#d9eff8;font-weight:800;font-size:.82rem}
.hardware-note{margin-top:18px;padding:20px 22px;border-left:3px solid var(--cyan);background:rgba(8,29,56,.62);border-radius:0 16px 16px 0}
.hardware-note strong{display:block;margin-bottom:5px}
.hardware-note p{margin:0}

.faq-list{display:grid;gap:10px;max-width:900px}
.faq-item{border:1px solid var(--line);border-radius:16px;background:rgba(6,24,47,.76);overflow:hidden}
.faq-item summary{cursor:pointer;list-style:none;padding:20px 22px;font-weight:800;position:relative;padding-right:52px}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:after{content:"+";position:absolute;right:22px;top:50%;transform:translateY(-50%);color:var(--cyan);font-size:1.5rem;font-weight:400}
.faq-item[open] summary:after{content:"–"}
.faq-item p{padding:0 22px 20px;margin:0;max-width:760px}

@media(max-width:980px){
  .quick-grid{grid-template-columns:repeat(2,1fr)}
  .video-grid{grid-template-columns:1fr 1fr}
  .video-card:last-child{grid-column:1/-1}
}
@media(max-width:640px){
  .quick-grid,.video-grid{grid-template-columns:1fr}
  .video-card:last-child{grid-column:auto}
  .quick-nav{padding-bottom:28px}
  .video-thumb{height:160px}
}


/* V4 - Introductory series + neutral aircraft journey */
.approach-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:14px;margin:34px 0 16px}
.approach-card{display:grid;grid-template-columns:52px 1fr;gap:16px;align-items:start;padding:22px;border:1px solid rgba(20,220,255,.22);border-radius:18px;background:linear-gradient(145deg,rgba(7,34,64,.94),rgba(4,16,32,.9));transition:transform .2s,border-color .2s,background .2s}
.approach-card:not(.is-coming):hover{transform:translateY(-3px);border-color:rgba(20,220,255,.55)}
.approach-card.is-coming{cursor:default}
.approach-no{width:46px;height:46px;display:grid;place-items:center;border-radius:14px;background:rgba(20,220,255,.08);border:1px solid rgba(20,220,255,.24);color:var(--cyan);font-weight:900}
.approach-card strong{display:block;font-size:1.05rem;margin-bottom:6px}
.approach-card p{margin:0 0 10px;font-size:.92rem}
.approach-card small{color:var(--cyan);font-weight:800;font-size:.72rem;text-transform:uppercase;letter-spacing:.05em}
.approach-card:not(.is-coming) small{display:none}
.approach-note{display:flex;gap:12px;align-items:flex-start;margin:0;padding:15px 17px;border-radius:14px;background:rgba(20,220,255,.06);border:1px dashed rgba(20,220,255,.3)}
.approach-note span{color:var(--cyan);font-weight:900}
.approach-note p{margin:0;font-size:.86rem}

.aircraft-path{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.aircraft-card{min-height:250px;border:1px solid var(--line);border-radius:var(--radius);padding:24px;background:linear-gradient(145deg,rgba(11,36,67,.95),rgba(4,15,31,.9));box-shadow:var(--shadow)}
.aircraft-card>span{display:inline-grid;place-items:center;width:44px;height:44px;margin-bottom:28px;border-radius:50%;color:var(--cyan);font-weight:900;border:1px solid rgba(20,220,255,.3);background:rgba(20,220,255,.08)}
.aircraft-card h3{margin-bottom:8px}
.aircraft-card p{margin:0}

@media(max-width:980px){
  .aircraft-path{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:760px){
  .approach-grid,.aircraft-path{grid-template-columns:1fr}
}