:root{
  --space:#020409; --dawn:#2a4a6b; --haze:#7ba7c9; --star:#dff0ff;
  --ion:#7cc3ff; --ion-soft:rgba(124,195,255,.35); --amber:#ffb45c;
  --text:#eef5fb; --text-2:#9db4c6; --text-3:#5c7385; --line:rgba(157,180,198,.16);
  --display:'Days One',sans-serif; --sans:'Inter',system-ui,sans-serif;
}
*{margin:0;padding:0;box-sizing:border-box}
html.lenis{height:auto}
.lenis.lenis-smooth{scroll-behavior:auto}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important}
}
body{
  font-family:var(--sans);background:var(--space);color:var(--text);
  font-size:16px;line-height:1.68;font-weight:300;
  -webkit-font-smoothing:antialiased;overflow-x:hidden;
}
::selection{background:var(--ion-soft)}
a{color:inherit;text-decoration:none}
img,svg{display:block;max-width:100%}
button{font:inherit;cursor:pointer;border:none;background:none;color:inherit}
.container{max-width:1140px;margin:0 auto;padding:0 24px}
h1,h2,h3{font-family:var(--display);font-weight:400;line-height:1.12;letter-spacing:.01em}

/* sky canvas — fixed behind everything */
#sky{position:fixed;inset:0;width:100%;height:100%;z-index:0}

/* altimeter */
#alti{
  position:fixed;right:22px;top:50%;transform:translateY(-50%);z-index:50;
  text-align:right;pointer-events:none;
}
#alti .a-val{font-family:var(--display);font-size:clamp(18px,2vw,26px);color:var(--ion);font-variant-numeric:tabular-nums;text-shadow:0 0 18px rgba(124,195,255,.5)}
#alti .a-lbl{font-size:9.5px;letter-spacing:.32em;text-transform:uppercase;color:var(--text-3)}
#alti .a-scale{width:2px;height:140px;background:var(--line);margin:12px 0 12px auto;position:relative;border-radius:2px}
#alti .a-scale i{position:absolute;left:-3px;width:8px;height:8px;border-radius:50%;background:var(--ion);bottom:0;box-shadow:0 0 12px var(--ion)}
@media (max-width:760px){#alti{right:12px}#alti .a-scale{height:90px}}

/* nav */
.nav{position:fixed;top:0;left:0;right:0;z-index:100;transition:background .4s,border-color .4s;border-bottom:1px solid transparent}
.nav.scrolled{background:rgba(2,4,9,.82);backdrop-filter:blur(14px);border-color:var(--line)}
.nav-inner{display:flex;align-items:center;justify-content:space-between;height:76px}
.brand{font-family:var(--display);font-size:20px;letter-spacing:.24em;text-transform:uppercase;display:flex;align-items:center;gap:12px}
.brand svg{width:26px;height:26px}
.nav-links{display:flex;gap:36px}
.nav-links a{font-size:13px;letter-spacing:.2em;text-transform:uppercase;color:var(--text-2);transition:color .3s}
.nav-links a:hover,.nav-links a:focus-visible{color:var(--ion)}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:11px;min-height:52px;
  padding:16px 36px;border-radius:100px;font-weight:600;font-size:14px;
  letter-spacing:.1em;text-transform:uppercase;transition:all .3s;
}
.btn:focus-visible{outline:2px solid var(--ion);outline-offset:3px}
.btn-ion{background:linear-gradient(100deg,var(--ion),#3d7fc9);color:#04121f}
.btn-ion:hover{transform:translateY(-2px);box-shadow:0 16px 44px rgba(124,195,255,.4)}
.btn-line{border:1px solid rgba(238,245,251,.3);color:var(--text)}
.btn-line:hover{border-color:var(--ion);color:var(--ion)}
.menu-btn{display:none;width:44px;height:44px;align-items:center;justify-content:center}

/* content above canvas */
main,footer{position:relative;z-index:2}

/* hero */
.hero{min-height:100vh;min-height:100dvh;display:flex;align-items:center;position:relative;overflow:hidden}
.hero-in{width:100%;padding-top:90px;text-align:center}
.hero-kicker{
  display:inline-flex;align-items:center;gap:14px;font-size:11.5px;letter-spacing:.5em;
  text-transform:uppercase;color:var(--ion);margin-bottom:30px;
}
.hero h1{font-size:clamp(42px,8vw,104px);margin-bottom:22px;text-transform:uppercase}
.hero h1 .thin{color:transparent;-webkit-text-stroke:1.5px var(--text)}
.hero p{color:var(--text-2);max-width:480px;margin:0 auto 42px;font-size:clamp(15.5px,1.7vw,18px)}
.hero-actions{display:flex;gap:16px;justify-content:center;flex-wrap:wrap;margin-bottom:46px}
.hero-capsule{
  width:min(680px,90vw);margin:0 auto;border-radius:26px;
  box-shadow:0 60px 120px rgba(0,0,0,.7);will-change:transform;
  -webkit-mask-image:linear-gradient(180deg,#000 80%,transparent);
  mask-image:linear-gradient(180deg,#000 80%,transparent);
}
.scroll-cue{
  position:absolute;bottom:26px;left:50%;transform:translateX(-50%);
  font-size:10.5px;letter-spacing:.44em;text-transform:uppercase;color:var(--text-3);
}

/* layer sections */
.layer{padding:150px 0;position:relative}
.layer-tag{
  display:inline-flex;align-items:center;gap:12px;border:1px solid var(--line);border-radius:100px;
  padding:8px 20px;font-size:11.5px;letter-spacing:.3em;text-transform:uppercase;color:var(--ion);
  background:rgba(2,4,9,.5);backdrop-filter:blur(6px);margin-bottom:26px;
}
h2{font-size:clamp(30px,4.6vw,56px);margin-bottom:20px;text-transform:uppercase}
h2 em{font-style:normal;color:var(--ion)}
.layer p.lead{color:var(--text-2);max-width:520px;font-size:16.5px}
.layer-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:64px;align-items:center}
.layer-img{position:relative;border-radius:24px;overflow:hidden}
.layer-img img{width:100%;object-fit:cover;transform:scale(1.12);will-change:transform}
.layer-facts{display:grid;gap:0;margin-top:34px}
.lf{display:flex;justify-content:space-between;gap:18px;padding:16px 0;border-bottom:1px solid var(--line);font-size:15px}
.lf b{font-family:var(--display);color:var(--ion);white-space:nowrap;font-weight:400}

/* flight plan */
.plan{max-width:760px;margin:56px auto 0;position:relative;padding-left:34px}
.plan::before{content:'';position:absolute;left:8px;top:8px;bottom:8px;width:2px;background:linear-gradient(180deg,var(--ion),transparent)}
.pstep{position:relative;padding:0 0 44px}
.pstep::before{
  content:'';position:absolute;left:-32px;top:6px;width:14px;height:14px;border-radius:50%;
  background:var(--space);border:2.5px solid var(--ion);box-shadow:0 0 14px rgba(124,195,255,.5);
}
.pstep .pt{font-family:var(--display);font-size:13px;color:var(--amber);letter-spacing:.2em;margin-bottom:8px}
.pstep h3{font-size:21px;margin-bottom:8px}
.pstep p{color:var(--text-2);font-size:14.5px;max-width:560px}

/* specs band */
.band{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line);border:1px solid var(--line);border-radius:22px;overflow:hidden;backdrop-filter:blur(6px)}
.bd{background:rgba(2,4,9,.62);padding:46px 20px;text-align:center}
.bd b{font-family:var(--display);font-size:clamp(28px,3.6vw,44px);display:block;font-variant-numeric:tabular-nums}
.bd b small{font-size:.42em;color:var(--ion)}
.bd span{font-size:12px;letter-spacing:.16em;text-transform:uppercase;color:var(--text-3)}

/* booking */
.book{padding:150px 0 170px;text-align:center}
.book p{color:var(--text-2);max-width:460px;margin:0 auto 42px}
.book .price{font-family:var(--display);font-size:clamp(30px,4vw,44px);color:var(--amber);margin-bottom:8px}
.book .seats{font-size:13px;letter-spacing:.24em;text-transform:uppercase;color:var(--text-3);margin-bottom:40px}
.book-form{display:flex;gap:12px;max-width:480px;margin:0 auto;flex-wrap:wrap}
.book-form input{
  flex:1;min-width:220px;background:rgba(238,245,251,.06);border:1px solid var(--line);
  border-radius:100px;padding:15px 24px;font:inherit;font-size:15px;color:var(--text);min-height:52px;
}
.book-form input:focus{outline:none;border-color:var(--ion)}
.book-form input::placeholder{color:var(--text-3)}
.form-msg{font-size:14px;margin-top:16px;display:none}
.form-msg.ok{display:block;color:var(--ion)}
.form-msg.err{display:block;color:#ffab8a}

/* footer */
footer{border-top:1px solid var(--line);padding:54px 0 42px;background:rgba(2,4,9,.7);backdrop-filter:blur(8px)}
.foot{display:flex;justify-content:space-between;align-items:center;gap:30px;flex-wrap:wrap}
.foot-links{display:flex;gap:30px;flex-wrap:wrap}
.foot-links a{font-size:12px;letter-spacing:.22em;text-transform:uppercase;color:var(--text-2)}
.foot-links a:hover{color:var(--ion)}
.foot-bottom{margin-top:38px;font-size:12.5px;color:var(--text-3);display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap}

@media (max-width:1020px){
  .layer-grid{grid-template-columns:1fr;gap:44px}
  .band{grid-template-columns:1fr 1fr}
  .nav-links{display:none}
  .nav-links.open{
    display:flex;flex-direction:column;position:absolute;top:76px;left:0;right:0;
    background:rgba(2,4,9,.96);padding:26px 24px;gap:22px;border-bottom:1px solid var(--line);
  }
  .menu-btn{display:flex}
  .nav .btn{display:none}
}
@media (max-width:560px){.layer{padding:100px 0}.band{grid-template-columns:1fr 1fr}}

/* ---- cross-document View Transitions (progressive enhancement) ---- */
@media (prefers-reduced-motion:no-preference){
  @view-transition{navigation:auto}
  .hero{view-transition-name:page-hero}
  ::view-transition-old(page-hero),::view-transition-new(page-hero){
    animation-duration:.45s;animation-timing-function:cubic-bezier(.4,0,.2,1);
  }
  ::view-transition-old(root),::view-transition-new(root){animation-duration:.35s}
}