/* ==============================================================
   GOWLING GROUPE — "Invisible Air" design system
   Deep night-blue ink · two luminous currents (cold #7CCDFF /
   warm #FFAE5C) · editorial serif (Zodiak) + Switzer ·
   glass, hairlines, braided-stream motif. No mono, no HUD.
   ============================================================== */

/* ---------- fonts (self-hosted) ---------- */
@font-face{font-family:'Zodiak';src:url('../fonts/zodiak-400.woff2') format('woff2');font-weight:400;font-style:normal;font-display:swap}
@font-face{font-family:'Zodiak';src:url('../fonts/zodiak-400-italic.woff2') format('woff2');font-weight:400;font-style:italic;font-display:swap}
@font-face{font-family:'Zodiak';src:url('../fonts/zodiak-700.woff2') format('woff2');font-weight:700;font-style:normal;font-display:swap}
@font-face{font-family:'Zodiak';src:url('../fonts/zodiak-700-italic.woff2') format('woff2');font-weight:700;font-style:italic;font-display:swap}
@font-face{font-family:'Switzer';src:url('../fonts/switzer-400.woff2') format('woff2');font-weight:400;font-style:normal;font-display:swap}
@font-face{font-family:'Switzer';src:url('../fonts/switzer-500.woff2') format('woff2');font-weight:500;font-style:normal;font-display:swap}
@font-face{font-family:'Switzer';src:url('../fonts/switzer-600.woff2') format('woff2');font-weight:600;font-style:normal;font-display:swap}

/* ---------- tokens ---------- */
:root{
  --night:#060B13;          /* page ground — blue ink, not black */
  --raise:#0B1322;          /* raised surfaces */
  --glass:rgba(13,21,35,.55);
  --air:#EAF2F6;            /* primary text */
  --haze:#8FA1B3;           /* secondary text */
  --cold:#7CCDFF;
  --cold-deep:#2E7FC2;
  --warm:#FFAE5C;
  --warm-deep:#D97A2E;
  --line:rgba(167,196,220,.14);
  --line-soft:rgba(167,196,220,.08);
  --serif:'Zodiak',Georgia,serif;
  --sans:'Switzer',-apple-system,'Segoe UI',sans-serif;
  --ease:cubic-bezier(.22,.8,.28,1);
  --rad:22px;
  --grad:linear-gradient(100deg,var(--cold),var(--warm));
}

/* ---------- base ---------- */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
body{
  background:var(--night);
  color:var(--air);
  font:400 17px/1.7 var(--sans);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
::selection{background:rgba(124,205,255,.28)}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
:focus-visible{outline:2px solid var(--cold);outline-offset:3px;border-radius:4px}
.wrap{width:min(1180px,92vw);margin-inline:auto}

/* ---------- type ---------- */
.h-hero{font:700 clamp(2.7rem,6vw,5.2rem)/1.04 var(--serif);letter-spacing:-.015em}
.h-xl{font:700 clamp(2.5rem,5vw,4.2rem)/1.06 var(--serif);letter-spacing:-.014em}
.h-l{font:700 clamp(1.9rem,3.4vw,2.9rem)/1.12 var(--serif);letter-spacing:-.012em}
.h-m{font:700 clamp(1.4rem,2.2vw,1.8rem)/1.2 var(--serif)}
.h-s{font:700 1.22rem/1.3 var(--serif)}
.h-hero em,.h-xl em,.h-l em,.h-m em{
  font-style:italic;font-weight:700;
  background:var(--grad);
  -webkit-background-clip:text;background-clip:text;
  -webkit-text-fill-color:transparent;color:transparent;
  padding-right:.06em; /* italic overhang */
}
.lead{font-size:clamp(1.02rem,1.4vw,1.18rem);line-height:1.75;color:var(--air)}
.muted{color:var(--haze)}
.kicker{
  display:inline-flex;align-items:center;gap:.7rem;
  font:600 .72rem/1 var(--sans);letter-spacing:.22em;text-transform:uppercase;color:var(--haze);
}
.kicker::before{content:'';width:26px;height:1px;background:var(--grad);flex:none}
.serif-i{font-family:var(--serif);font-style:italic}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;gap:.6rem;
  padding:.85rem 1.6rem;border-radius:100px;
  font:600 .95rem/1 var(--sans);letter-spacing:.01em;
  transition:transform .3s var(--ease),box-shadow .3s var(--ease),background .3s var(--ease),border-color .3s var(--ease);
  white-space:nowrap;
}
.btn svg{width:17px;height:17px;flex:none;transition:transform .3s var(--ease)}
.btn:hover svg{transform:translateX(4px)}
.btn-primary{
  background:var(--grad);color:#08101B;
  box-shadow:0 6px 30px -8px rgba(124,205,255,.35),0 6px 30px -8px rgba(255,174,92,.3);
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 12px 40px -8px rgba(124,205,255,.45),0 12px 40px -8px rgba(255,174,92,.4)}
.btn-ghost{border:1px solid var(--line);color:var(--air);background:rgba(234,242,246,.03)}
.btn-ghost:hover{border-color:rgba(167,196,220,.4);background:rgba(234,242,246,.06)}
.btn-lg{padding:1.05rem 2rem;font-size:1rem}

/* ---------- header ---------- */
.site-head{
  position:fixed;inset:0 0 auto;z-index:50;
  transition:background .4s var(--ease),border-color .4s var(--ease),backdrop-filter .4s var(--ease);
  border-bottom:1px solid transparent;
}
.site-head.scrolled{background:rgba(6,11,19,.72);backdrop-filter:blur(14px);border-color:var(--line-soft)}
.nav{display:flex;align-items:center;gap:2rem;height:74px}
.brand{display:flex;align-items:center;gap:.65rem;flex:none}
.brand .mark{width:42px;height:24px;display:block}
.brand .t{font:600 1.05rem/1 var(--sans);letter-spacing:.01em}
.brand .t em{font:italic 700 1.08rem/1 var(--serif);letter-spacing:0;color:var(--air)}
.nav-links{display:flex;gap:1.6rem;margin-left:auto}
.nav-links a{
  font:500 .92rem/1 var(--sans);color:var(--haze);padding:.4rem 0;position:relative;
  transition:color .25s var(--ease);
}
.nav-links a::after{
  content:'';position:absolute;left:0;right:100%;bottom:0;height:1px;
  background:var(--grad);transition:right .35s var(--ease);
}
.nav-links a:hover,.nav-links a.active{color:var(--air)}
.nav-links a:hover::after,.nav-links a.active::after{right:0}
.nav-tools{display:flex;align-items:center;gap:1rem}
.lang{display:flex;border:1px solid var(--line);border-radius:100px;padding:3px}
.lang button{font:600 .72rem/1 var(--sans);letter-spacing:.08em;padding:.42rem .7rem;border-radius:100px;color:var(--haze);transition:.25s var(--ease)}
.lang button.on{background:rgba(234,242,246,.1);color:var(--air)}
.nav-cta{padding:.7rem 1.3rem;font-size:.88rem}
.burger{display:none;width:42px;height:42px;position:relative}
.burger span,.burger span::before,.burger span::after{
  content:'';position:absolute;left:10px;right:10px;height:2px;border-radius:2px;background:var(--air);transition:.3s var(--ease);
}
.burger span{top:20px}
.burger span::before{left:0;right:0;top:-7px}
.burger span::after{left:0;right:0;top:7px}

/* ---------- hero ---------- */
.hero{
  position:relative;min-height:100svh;display:flex;align-items:center;
  padding:clamp(120px,16vh,180px) 0 clamp(60px,9vh,110px);
  overflow:hidden;
}
.hero::before{ /* faint horizon glow behind the streams */
  content:'';position:absolute;inset:0;
  background:
    radial-gradient(90% 60% at 82% 30%,rgba(46,127,194,.16),transparent 60%),
    radial-gradient(80% 55% at 18% 78%,rgba(217,122,46,.13),transparent 60%);
  pointer-events:none;
}
#airfield,.hero canvas{
  position:absolute;inset:0;width:100%;height:100%;
  -webkit-mask-image:linear-gradient(100deg,rgba(0,0,0,.38),#000 58%);
  mask-image:linear-gradient(100deg,rgba(0,0,0,.38),#000 58%);
}
.hero .wrap{position:relative;z-index:2}
.hero-tagline{max-width:15ch;margin:1.4rem 0 1.6rem}
.hero .lead{max-width:56ch;color:var(--haze)}
.hero .lead strong{color:var(--air);font-weight:500}
.hero-cta{display:flex;gap:1rem;flex-wrap:wrap;margin-top:2.2rem;align-items:center}

/* the balance dial — signature control */
.dial{
  position:relative;z-index:2;
  margin-top:clamp(2.6rem,5vh,4rem);
  display:flex;align-items:center;gap:1.4rem;flex-wrap:wrap;
  max-width:620px;
}
.dial .read{display:flex;flex-direction:column;flex:none;min-width:118px}
.dial .deg{font:italic 700 clamp(2rem,3vw,2.7rem)/1 var(--serif);color:var(--air);font-variant-numeric:tabular-nums}
.dial .deg small{font:600 .68rem/1 var(--sans);letter-spacing:.18em;text-transform:uppercase;color:var(--haze);display:block;margin-top:.45rem;font-style:normal}
.dial .track{position:relative;flex:1;min-width:230px;height:46px;display:flex;align-items:center}
.dial input[type=range]{
  -webkit-appearance:none;appearance:none;width:100%;height:46px;background:transparent;cursor:ew-resize;
}
.dial input[type=range]::-webkit-slider-runnable-track{
  height:8px;border-radius:100px;
  background:linear-gradient(90deg,rgba(124,205,255,.75),rgba(150,160,180,.35) 50%,rgba(255,174,92,.75));
  box-shadow:inset 0 0 0 1px rgba(167,196,220,.18);
}
.dial input[type=range]::-moz-range-track{
  height:8px;border-radius:100px;
  background:linear-gradient(90deg,rgba(124,205,255,.75),rgba(150,160,180,.35) 50%,rgba(255,174,92,.75));
  box-shadow:inset 0 0 0 1px rgba(167,196,220,.18);
}
.dial input[type=range]::-webkit-slider-thumb{
  -webkit-appearance:none;appearance:none;
  width:26px;height:26px;margin-top:-9px;border-radius:50%;
  background:#EAF2F6;border:0;
  box-shadow:0 0 0 5px rgba(234,242,246,.12),0 4px 18px rgba(124,205,255,.45);
}
.dial input[type=range]::-moz-range-thumb{
  width:26px;height:26px;border-radius:50%;background:#EAF2F6;border:0;
  box-shadow:0 0 0 5px rgba(234,242,246,.12),0 4px 18px rgba(124,205,255,.45);
}
.dial .ends{position:absolute;inset:auto 2px -12px;display:flex;justify-content:space-between;pointer-events:none}
.dial .ends span{font:600 .62rem/1 var(--sans);letter-spacing:.16em;text-transform:uppercase;color:var(--haze)}
.dial .hint{flex-basis:100%;font:italic 400 .95rem/1.5 var(--serif);color:var(--haze)}

/* conditions strip (replaces telemetry marquee) */
.cond{border-block:1px solid var(--line-soft);background:rgba(11,19,34,.4)}
.cond .row{
  display:flex;gap:clamp(1.2rem,4vw,3.5rem);align-items:baseline;justify-content:center;
  padding:1.1rem 0;flex-wrap:wrap;
}
.cond b{font:italic 700 1.15rem/1 var(--serif);color:var(--air);font-weight:700}
.cond span{font:500 .85rem/1.4 var(--sans);color:var(--haze)}
.cond .c b{color:var(--cold)}
.cond .w b{color:var(--warm)}

/* ---------- sections ---------- */
.section{padding:clamp(90px,12vh,150px) 0;position:relative}
.section-tight{padding:clamp(60px,8vh,100px) 0;position:relative}
.shead{max-width:760px;margin-bottom:clamp(2.6rem,5vw,4rem)}
.shead.center{margin-inline:auto;text-align:center}
.shead.center .kicker{justify-content:center}
.shead .kicker{margin-bottom:1.1rem}
.shead .h-l{margin-bottom:1.1rem}

/* ---------- service index (editorial rows) ---------- */
.svc-list{border-top:1px solid var(--line)}
.svc-row{
  display:grid;grid-template-columns:minmax(0,1.1fr) minmax(0,1.4fr) auto;
  gap:clamp(1rem,3vw,2.5rem);align-items:center;
  padding:clamp(1.5rem,2.6vw,2.2rem) clamp(.2rem,1vw,.8rem);
  border-bottom:1px solid var(--line);
  position:relative;transition:background .35s var(--ease);
}
.svc-row::before{
  content:'';position:absolute;inset:0;opacity:0;transition:opacity .35s var(--ease);pointer-events:none;
}
.svc-row[data-t=c]::before{background:linear-gradient(95deg,rgba(124,205,255,.07),transparent 65%)}
.svc-row[data-t=w]::before{background:linear-gradient(95deg,rgba(255,174,92,.07),transparent 65%)}
.svc-row:hover::before{opacity:1}
.svc-row .nm{font:700 clamp(1.3rem,2.1vw,1.7rem)/1.2 var(--serif);transition:transform .35s var(--ease)}
.svc-row:hover .nm{transform:translateX(10px)}
.svc-row p{color:var(--haze);font-size:.97rem;line-height:1.6}
.svc-row .go{
  width:46px;height:46px;border-radius:50%;border:1px solid var(--line);
  display:grid;place-items:center;transition:.35s var(--ease);flex:none;
}
.svc-row .go svg{width:17px;height:17px;color:var(--haze);transition:.35s var(--ease)}
.svc-row:hover .go{border-color:transparent;background:var(--grad)}
.svc-row:hover .go svg{color:#08101B;transform:rotate(-45deg)}

/* ---------- glass panel (kept name for subpages) ---------- */
.grid{display:grid;gap:clamp(1rem,1.8vw,1.5rem)}
.g-3{grid-template-columns:repeat(3,1fr)}
.g-2{grid-template-columns:repeat(2,1fr)}
.panel{
  position:relative;border-radius:var(--rad);
  background:var(--glass);border:1px solid var(--line-soft);
  padding:clamp(1.6rem,2.4vw,2.2rem);
  transition:transform .4s var(--ease),border-color .4s var(--ease),background .4s var(--ease);
  overflow:hidden;
}
.panel::before{ /* top inside light */
  content:'';position:absolute;inset:0 0 auto;height:1px;
  background:linear-gradient(90deg,transparent,rgba(234,242,246,.2),transparent);
}
.panel:hover{transform:translateY(-4px);border-color:var(--line)}
.panel .ico{
  width:48px;height:48px;border-radius:14px;margin-bottom:1.3rem;
  display:grid;place-items:center;color:var(--cold);
  background:rgba(124,205,255,.08);border:1px solid rgba(124,205,255,.16);
}
.panel.warm .ico{color:var(--warm);background:rgba(255,174,92,.08);border-color:rgba(255,174,92,.16)}
.panel .ico svg{width:23px;height:23px}
.panel .h-s{margin-bottom:.6rem}
.panel p{color:var(--haze);font-size:.96rem;line-height:1.65}
.panel .more{margin-top:1.2rem}
.more{
  display:inline-flex;align-items:center;gap:.45rem;
  font:600 .85rem/1 var(--sans);color:var(--air);
}
.more svg{width:15px;height:15px;transition:transform .3s var(--ease)}
.more:hover svg{transform:translateX(4px)}

/* ---------- airsplit (still vs balanced — signature #2) ---------- */
.airsplit{
  position:relative;border-radius:calc(var(--rad) + 4px);overflow:hidden;
  border:1px solid var(--line-soft);
  aspect-ratio:16/7.5;min-height:340px;
  background:
    radial-gradient(70% 90% at 20% 85%,rgba(46,127,194,.12),transparent 60%),
    radial-gradient(70% 90% at 80% 30%,rgba(217,122,46,.10),transparent 60%),
    #081020;
  touch-action:none;cursor:ew-resize;
}
.airsplit canvas{position:absolute;inset:0;width:100%;height:100%}
.airsplit .lab{
  position:absolute;top:1.2rem;z-index:3;
  font:italic 700 1.05rem/1 var(--serif);color:var(--air);
  padding:.55rem 1rem;border-radius:100px;background:rgba(6,11,19,.55);backdrop-filter:blur(8px);
  border:1px solid var(--line-soft);
}
.airsplit .lab.left{left:1.2rem;color:var(--cold)}
.airsplit .lab.right{right:1.2rem;color:var(--warm)}
.airsplit .divider{
  position:absolute;top:0;bottom:0;left:50%;width:1px;z-index:2;
  background:linear-gradient(180deg,transparent,rgba(234,242,246,.75),transparent);
}
.airsplit .knob{
  position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);
  width:46px;height:46px;border-radius:50%;
  background:rgba(6,11,19,.7);backdrop-filter:blur(6px);
  border:1px solid rgba(234,242,246,.35);
  display:grid;place-items:center;color:var(--air);
}
.airsplit .knob svg{width:19px;height:19px}
.airsplit .hint{
  position:absolute;bottom:1.1rem;left:50%;transform:translateX(-50%);z-index:3;
  font:500 .78rem/1 var(--sans);letter-spacing:.1em;text-transform:uppercase;color:var(--haze);
}

/* ---------- duo (residential / commercial) ---------- */
.duo{display:grid;grid-template-columns:1fr 1fr;gap:clamp(1rem,1.8vw,1.5rem)}
.aud{
  position:relative;border-radius:calc(var(--rad) + 4px);overflow:hidden;
  border:1px solid var(--line-soft);background:var(--raise);
  display:flex;flex-direction:column;
  transition:transform .45s var(--ease),border-color .45s var(--ease);
}
.aud:hover{transform:translateY(-5px);border-color:var(--line)}
.aud .ph{position:relative;aspect-ratio:16/9;overflow:hidden}
.aud .ph img{width:100%;height:100%;object-fit:cover;filter:grayscale(1) contrast(1.05) brightness(.82);transition:transform .8s var(--ease)}
.aud:hover .ph img{transform:scale(1.045)}
.aud.warm .ph img{filter:grayscale(1) sepia(.6) hue-rotate(-10deg) saturate(2.1) contrast(1.04) brightness(.62)}
.aud .ph::after{content:'';position:absolute;inset:0;mix-blend-mode:soft-light}
.aud.cool .ph::after{background:linear-gradient(160deg,rgba(124,205,255,.85),rgba(46,127,194,.4))}
.aud.warm .ph::after{background:linear-gradient(160deg,rgba(255,174,92,.5),rgba(120,50,10,.35))}
.aud .ph::before{content:'';position:absolute;inset:auto 0 0;height:55%;z-index:2;background:linear-gradient(180deg,transparent,rgba(6,11,19,.75))}
.aud .pad{padding:clamp(1.5rem,2.4vw,2.2rem);display:flex;flex-direction:column;gap:.8rem;flex:1}
.aud .kb{font:italic 700 1rem/1 var(--serif)}
.aud.cool .kb{color:var(--cold)}
.aud.warm .kb{color:var(--warm)}
.aud p{color:var(--haze);font-size:.97rem}
.aud .more{margin-top:auto;padding-top:.6rem}

/* ---------- split / feature list / frame ---------- */
.split{display:grid;grid-template-columns:1.05fr .95fr;gap:clamp(2.5rem,5vw,5rem);align-items:center}
.feat{list-style:none;margin-top:1.8rem;display:grid;gap:.95rem}
.feat li{display:flex;gap:.9rem;align-items:flex-start;color:var(--air);font-size:.99rem}
.feat .ck{
  width:24px;height:24px;border-radius:50%;flex:none;margin-top:.1rem;
  display:grid;place-items:center;
  background:linear-gradient(120deg,rgba(124,205,255,.15),rgba(255,174,92,.15));
  border:1px solid var(--line);color:var(--air);
}
.feat .ck svg{width:12px;height:12px}
.frame{
  position:relative;border-radius:calc(var(--rad) + 4px);overflow:hidden;
  border:1px solid var(--line-soft);
}
.frame img{width:100%;filter:grayscale(1) contrast(1.05) brightness(.85)}
.frame::after{content:'';position:absolute;inset:0;mix-blend-mode:soft-light;background:linear-gradient(150deg,rgba(124,205,255,.6),transparent 55%,rgba(255,174,92,.6))}
.frame .tagline{
  position:absolute;left:1.2rem;bottom:1.2rem;z-index:2;
  font:italic 700 1rem/1.4 var(--serif);color:var(--air);
  padding:.6rem 1.1rem;border-radius:100px;background:rgba(6,11,19,.6);backdrop-filter:blur(8px);
  border:1px solid var(--line-soft);
}

/* ---------- stat band ---------- */
.band{
  border-radius:calc(var(--rad) + 6px);border:1px solid var(--line-soft);
  background:
    radial-gradient(60% 120% at 12% 100%,rgba(46,127,194,.14),transparent 55%),
    radial-gradient(60% 120% at 88% 0%,rgba(217,122,46,.12),transparent 55%),
    var(--raise);
  padding:clamp(2.2rem,4vw,3.4rem) clamp(1.5rem,3.5vw,3.4rem);
}
.band .inner{display:grid;grid-template-columns:repeat(4,1fr);gap:clamp(1.4rem,3vw,2.5rem)}
.band .v{font:700 clamp(2.3rem,4vw,3.4rem)/1 var(--serif);font-variant-numeric:tabular-nums}
.band .u{font-style:italic;background:var(--grad);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
.band .k{margin-top:.7rem;font:500 .85rem/1.5 var(--sans);color:var(--haze)}

/* ---------- process rail ---------- */
.rail{display:grid;grid-template-columns:repeat(4,1fr);gap:clamp(1.2rem,2.5vw,2rem);position:relative;padding-top:1.6rem}
.rail::before{
  content:'';position:absolute;top:0;left:.3%;right:.3%;height:2px;border-radius:2px;
  background:linear-gradient(90deg,var(--cold),var(--warm));opacity:.55;
}
.rail .step{position:relative}
.rail .step::before{
  content:'';position:absolute;top:-1.6rem;left:0;width:11px;height:11px;border-radius:50%;
  background:var(--night);border:2px solid var(--cold);transform:translateY(-4.5px);
}
.rail .step:nth-child(2)::before{border-color:#9CC7E8}
.rail .step:nth-child(3)::before{border-color:#E8B98A}
.rail .step:nth-child(4)::before{border-color:var(--warm)}
.rail .no{font:italic 700 2rem/1 var(--serif);color:var(--haze);opacity:.65;margin-bottom:.7rem}
.rail h3{font:700 1.25rem/1.2 var(--serif);margin-bottom:.5rem}
.rail p{color:var(--haze);font-size:.94rem;line-height:1.6}

/* ---------- quotes ---------- */
.quote{position:relative;padding-top:2.6rem}
.quote::before{
  content:'“';position:absolute;top:-.4rem;left:-.2rem;
  font:italic 700 4.6rem/1 var(--serif);
  background:var(--grad);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;
  opacity:.9;
}
.quote blockquote{font:italic 400 1.12rem/1.65 var(--serif);color:var(--air)}
.quote figcaption{margin-top:1.3rem;font:600 .74rem/1.4 var(--sans);letter-spacing:.16em;text-transform:uppercase;color:var(--haze)}

/* ---------- FAQ ---------- */
.faq{display:grid;gap:.8rem}
.faq details{
  border:1px solid var(--line-soft);border-radius:18px;background:var(--glass);
  transition:border-color .3s var(--ease);
}
.faq details[open]{border-color:var(--line)}
.faq summary{
  list-style:none;display:flex;justify-content:space-between;align-items:center;gap:1rem;
  padding:1.15rem 1.4rem;cursor:pointer;
  font:700 1.06rem/1.4 var(--serif);
}
.faq summary::-webkit-details-marker{display:none}
.faq .pm{position:relative;width:22px;height:22px;flex:none}
.faq .pm::before,.faq .pm::after{
  content:'';position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);
  width:13px;height:1.6px;background:var(--haze);transition:.3s var(--ease);
}
.faq .pm::after{transform:translate(-50%,-50%) rotate(90deg)}
.faq details[open] .pm::after{transform:translate(-50%,-50%) rotate(0)}
.faq details[open] .pm::before,.faq details[open] .pm::after{background:var(--warm)}
.faq .ans{padding:0 1.4rem 1.25rem;color:var(--haze);font-size:.97rem;line-height:1.7;max-width:60ch}

/* ---------- CTA ---------- */
.cta{
  position:relative;border-radius:calc(var(--rad) + 8px);overflow:hidden;
  border:1px solid var(--line-soft);
  text-align:center;padding:clamp(3.5rem,7vw,6rem) clamp(1.5rem,4vw,4rem);
  background:
    radial-gradient(70% 100% at 15% 100%,rgba(46,127,194,.2),transparent 60%),
    radial-gradient(70% 100% at 85% 0%,rgba(217,122,46,.18),transparent 60%),
    var(--raise);
}
.cta canvas{position:absolute;inset:0;width:100%;height:100%}
.cta>*:not(canvas){position:relative;z-index:2}
.cta .kicker{justify-content:center;margin-bottom:1.2rem}
.cta .h-l{margin-bottom:1rem}
.cta .lead{max-width:56ch;margin-inline:auto;color:var(--haze)}
.cta .hero-cta{justify-content:center;margin-top:2.2rem}

/* ---------- page hero (subpages) ---------- */
.phero{
  position:relative;padding:clamp(150px,20vh,220px) 0 clamp(60px,8vh,90px);
  overflow:hidden;
}
.phero canvas{position:absolute;inset:0;width:100%;height:100%}
.phero::before{
  content:'';position:absolute;inset:0;pointer-events:none;
  background:
    radial-gradient(80% 60% at 80% 20%,rgba(46,127,194,.13),transparent 60%),
    radial-gradient(70% 55% at 15% 90%,rgba(217,122,46,.11),transparent 60%);
}
.phero .wrap{position:relative;z-index:2}
.phero .h-xl{max-width:18ch;margin:1.3rem 0 1.2rem}
.phero .lead{max-width:58ch;color:var(--haze)}

/* ---------- footer ---------- */
.site-foot{border-top:1px solid var(--line-soft);background:#050910;margin-top:clamp(60px,8vh,100px)}
.foot-top{
  display:grid;grid-template-columns:1.6fr 1fr 1fr 1.3fr;gap:clamp(2rem,4vw,3.5rem);
  padding:clamp(3rem,5vw,4.5rem) 0 2.5rem;
}
.foot-p{color:var(--haze);font-size:.92rem;line-height:1.7;margin-top:1rem;max-width:34ch}
.site-foot h4{font:italic 700 1.05rem/1 var(--serif);margin-bottom:1.1rem}
.site-foot a{color:var(--haze);font-size:.94rem;line-height:2.1;transition:color .25s var(--ease)}
.site-foot a:hover{color:var(--air)}
.foot-bot{
  display:flex;justify-content:space-between;align-items:center;gap:1.5rem;flex-wrap:wrap;
  padding:1.4rem 0 1.6rem;border-top:1px solid var(--line-soft);
  font:500 .74rem/1.5 var(--sans);letter-spacing:.12em;text-transform:uppercase;color:var(--haze);
}
.foot-bot .ramp{flex:1;height:1px;min-width:60px;background:var(--grad);opacity:.4}

/* ---------- reveals ---------- */
html.anim .reveal{opacity:0;transform:translateY(26px);transition:opacity .9s var(--ease),transform .9s var(--ease)}
html.anim .reveal[data-d="1"]{transition-delay:.12s}
html.anim .reveal[data-d="2"]{transition-delay:.24s}
html.anim .reveal[data-d="3"]{transition-delay:.36s}
html.anim .reveal.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  html.anim .reveal{opacity:1;transform:none;transition:none}
}

/* ---------- forms (contact) ---------- */
.field label{display:block;font:600 .78rem/1 var(--sans);letter-spacing:.14em;text-transform:uppercase;color:var(--haze);margin-bottom:.55rem}
.field input,.field select,.field textarea{
  width:100%;padding:.95rem 1.15rem;border-radius:14px;
  background:rgba(234,242,246,.04);border:1px solid var(--line-soft);
  color:var(--air);font:400 16px/1.5 var(--sans);
  transition:border-color .3s var(--ease),background .3s var(--ease);
}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:rgba(124,205,255,.5);background:rgba(234,242,246,.06);
}
.field select option{background:var(--raise);color:var(--air)}
.field textarea{min-height:140px;resize:vertical}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:1.2rem}
.form-grid .full{grid-column:1/-1}

/* ---------- responsive ---------- */
@media (max-width:1020px){
  .g-3{grid-template-columns:repeat(2,1fr)}
  .split{grid-template-columns:1fr}
  .band .inner{grid-template-columns:repeat(2,1fr);row-gap:2.2rem}
  .rail{grid-template-columns:repeat(2,1fr);row-gap:2.6rem}
  .foot-top{grid-template-columns:1fr 1fr}
  .svc-row{grid-template-columns:1fr auto;grid-template-rows:auto auto}
  .svc-row p{grid-column:1/-1}
}
@media (max-width:760px){
  .nav-links{
    position:fixed;inset:74px 0 auto;flex-direction:column;gap:0;
    background:rgba(6,11,19,.97);backdrop-filter:blur(16px);
    border-bottom:1px solid var(--line-soft);
    padding:.6rem 4vw 1.4rem;display:none;
  }
  .nav-links.open{display:flex}
  .nav-links a{padding:.95rem 0;font-size:1.05rem;border-bottom:1px solid var(--line-soft)}
  .burger{display:block}
  .nav-cta{display:none}
  .g-3,.g-2,.duo{grid-template-columns:1fr}
  .airsplit{aspect-ratio:auto;height:420px}
  .form-grid{grid-template-columns:1fr}
  .cond .row{gap:1rem;justify-content:flex-start}
  .hero{min-height:auto}
  #airfield,.hero canvas{
    -webkit-mask-image:linear-gradient(180deg,rgba(0,0,0,.3),#000 72%);
    mask-image:linear-gradient(180deg,rgba(0,0,0,.3),#000 72%);
    opacity:.75;
  }
}