/* ============================================================
   Confluence Air — site stylesheet
   Palette: Blue #012773 (structural) · White · Gold #F5DC0F (accent)
            Red #C70F2E is for the roundel only (identity.md)
   Type: Archivo (display) · Source Sans 3 (body) · Roboto Mono (figures)
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Archivo:wght@500;600;700;800&family=Source+Sans+3:ital,wght@0,400;0,600;1,400&family=Roboto+Mono:wght@500&display=swap');

:root{
  --navy70:rgba(1,39,115,.72);
  --mono:'Roboto Mono',ui-monospace,monospace;
  --blue:#012773;
  --blue-deep:#021a4d;
  --gold:#F5DC0F;
  --ink:#0d1b34;
  --slate:#5a6b7b;
  --paper:#ffffff;
  --mist:#f4f6f8;
  --line:#e2e6eb;
  --maxw:1180px;
  --shadow:0 18px 50px -20px rgba(2,26,77,.45);
}

*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:'Source Sans 3',system-ui,sans-serif;
  color:var(--ink);
  background:var(--paper);
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
}
a{color:var(--blue);text-decoration:none}
img,svg{display:block;max-width:100%}
h1,h2,h3,h4{font-family:'Archivo',sans-serif;line-height:1.08;color:var(--blue);letter-spacing:-.01em}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 28px}

/* ---------- buttons ---------- */
.btn{
  display:inline-block;font-family:'Archivo';font-weight:700;font-size:.95rem;
  letter-spacing:.02em;padding:.85em 1.6em;border-radius:2px;border:2px solid transparent;
  transition:transform .15s ease, box-shadow .15s ease, background .15s ease;
  cursor:pointer;
}
.btn-primary{background:var(--gold);color:var(--blue)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 10px 24px -10px rgba(245,220,15,.6)}
.btn-ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.55)}
.btn-ghost:hover{border-color:#fff;background:rgba(255,255,255,.08)}
.btn-blue{background:var(--blue);color:#fff}
.btn-outline{background:transparent;color:var(--blue);border-color:var(--blue)}
.btn-outline:hover{background:var(--blue);color:#fff}
.btn-blue:hover{transform:translateY(-2px);box-shadow:0 10px 24px -10px rgba(1,39,115,.6)}

/* ---------- header ---------- */
header.site{
  position:sticky;top:0;z-index:50;background:rgba(255,255,255,.96);
  backdrop-filter:saturate(140%) blur(6px);border-bottom:1px solid var(--line);
}
header.site .bar{display:flex;align-items:center;justify-content:space-between;height:74px}
.brand{display:flex;align-items:center;gap:13px}
.brand svg,.brand img{width:42px;height:42px}
.brand .name{font-family:'Archivo';font-weight:800;font-size:1.15rem;color:var(--blue);letter-spacing:.04em}
.brand .name small{display:block;font-family:'Source Sans 3';font-weight:600;font-size:.62rem;letter-spacing:.18em;color:var(--slate)}
nav.main{display:flex;align-items:center;gap:26px}
nav.main a{font-family:'Archivo';font-weight:600;font-size:.92rem;color:var(--ink);position:relative;padding:4px 0}
nav.main a:hover{color:var(--blue)}
nav.main a::after{content:"";position:absolute;left:0;right:0;bottom:-3px;height:3px;background:var(--gold);transform:scaleX(0);transition:transform .15s ease}
nav.main a:hover::after,nav.main a[aria-current]::after{transform:scaleX(1)}
nav.main a.cta::after{display:none}
nav.main a.cta{background:var(--blue);color:#fff;padding:.55em 1.1em;border-radius:2px}
nav.main a.cta:hover{background:var(--blue-deep);color:#fff}
.menu-toggle{display:none;background:none;border:0;cursor:pointer;font-size:1.6rem;color:var(--blue)}

/* ---------- hero ---------- */
.hero{position:relative;background:var(--blue);color:#fff;overflow:hidden}
.hero::before{
  content:"";position:absolute;inset:0;z-index:0;
  background:
    linear-gradient(90deg, rgba(1,20,60,.95) 0%, rgba(1,20,60,.88) 32%, rgba(1,20,60,.52) 58%, rgba(1,20,60,.12) 100%),
    linear-gradient(0deg, rgba(1,20,60,.55) 0%, transparent 40%);
  z-index:1;
}
/* rotating fleet hero: slide 1 loads with the page, the rest after window load */
.hero-slides{position:absolute;inset:0;z-index:0}
.hero-slide{position:absolute;inset:0;background:var(--blue) center 45%/cover no-repeat;opacity:0;transition:opacity 1.2s ease}
.hero-slide.on{opacity:1}
.hs-crj900{background-image:url('hero-crj900.jpg')}
.hero-slides.ready .hs-atr42{background-image:url('hero-atr42.jpg')}
.hero-slides.ready .hs-e175{background-image:url('hero-e175.jpg')}
.hero-slides.ready .hs-e190{background-image:url('hero-e190-pit.jpg')}
.hero-slides.ready .hs-b777{background-image:url('hero-b777.jpg')}
.hero-slides.ready .hs-citation{background-image:url('hero-citation.jpg')}
.hero-slides.ready .hs-phenom{background-image:url('hero-phenom.jpg')}
.hero-cap{position:absolute;right:28px;bottom:18px;z-index:2;display:flex;align-items:center;gap:12px;font-family:'Archivo';font-weight:600;font-size:.72rem;letter-spacing:.14em;text-transform:uppercase;color:rgba(255,255,255,.85);text-shadow:0 1px 8px rgba(0,0,0,.6)}
.hero-cap button{background:rgba(1,20,60,.45);border:1px solid rgba(255,255,255,.4);color:#fff;border-radius:2px;width:28px;height:24px;cursor:pointer;font-size:.7rem;line-height:1}
.hero-cap button:hover{background:var(--blue)}
.hero .wrap{position:relative;z-index:1;padding:104px 28px 112px}
.hero-content{max-width:600px}
.hero .eyebrow{font-family:'Archivo';font-weight:700;letter-spacing:.22em;font-size:.74rem;color:var(--gold);margin-bottom:18px;text-shadow:0 2px 14px rgba(0,0,0,.5)}
.hero h1{color:#fff;font-size:clamp(2.6rem,5vw,4.3rem);font-weight:800;margin-bottom:18px;text-shadow:0 3px 22px rgba(0,0,0,.55)}
.hero h1 .accent{color:var(--gold)}
.hero p.lead{font-size:1.2rem;max-width:40ch;color:#fff;margin-bottom:30px;text-shadow:0 2px 16px rgba(0,0,0,.55)}
.hero .cta-row{display:flex;gap:14px;flex-wrap:wrap}
.hero .rule{height:3px;width:64px;background:var(--gold);margin-bottom:24px}
.hero-stats{width:max-content;max-width:calc(100vw - 56px)}

/* staggered load */
.fade{opacity:0;transform:translateY(14px);animation:rise .7s cubic-bezier(.2,.7,.2,1) forwards}
.fade.d1{animation-delay:.05s}.fade.d2{animation-delay:.15s}.fade.d3{animation-delay:.25s}
.fade.d4{animation-delay:.35s}.fade.d5{animation-delay:.45s}
@keyframes rise{to{opacity:1;transform:none}}
@media (prefers-reduced-motion:reduce){.fade{animation:none;opacity:1;transform:none}}

/* ---------- section primitives ---------- */
section{padding:84px 0}
section.tight{padding:56px 0}
.kicker{font-family:'Archivo';font-weight:700;letter-spacing:.2em;font-size:.74rem;color:var(--navy70);margin-bottom:14px}
.section-head{max-width:60ch;margin-bottom:48px}
.section-head h2{font-size:clamp(1.9rem,3.4vw,2.7rem);margin-bottom:16px}
.section-head p{color:var(--slate);font-size:1.12rem}
.bg-mist{background:var(--mist)}
.bg-blue{background:var(--blue);color:#fff}
.bg-blue h2,.bg-blue h3{color:#fff}
.bg-blue .kicker{color:var(--gold)}
.bg-blue p{color:#dbe3f2}

/* ---------- feature cards ---------- */
.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.card{background:#fff;border:1px solid var(--line);border-radius:4px;padding:30px 26px;transition:transform .2s ease,box-shadow .2s ease}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
.card .num{font-family:'Archivo';font-weight:800;font-size:.8rem;letter-spacing:.16em;color:var(--gold);background:var(--blue);display:inline-block;padding:.3em .7em;border-radius:2px;margin-bottom:16px}
.card h3{font-size:1.3rem;margin-bottom:10px}
.card p{color:var(--slate);font-size:1rem}

/* ---------- tables ---------- */
.tbl{width:100%;border-collapse:collapse;font-size:.98rem;background:#fff;border:1px solid var(--line);border-radius:4px;overflow:hidden}
.tbl th{background:var(--blue);color:#fff;font-family:'Archivo';font-weight:600;text-align:left;padding:13px 16px;font-size:.86rem;letter-spacing:.03em}
.tbl td{padding:12px 16px;border-top:1px solid var(--line)}
.tbl tr:nth-child(even) td{background:var(--mist)}
.tbl td strong{color:var(--blue)}

/* ---------- split / list ---------- */
.split{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center}
.checklist{list-style:none;display:grid;gap:14px}
.checklist li{position:relative;padding-left:34px;font-size:1.05rem}
.checklist li::before{content:"";position:absolute;left:0;top:.35em;width:18px;height:18px;border-radius:50%;background:var(--gold);box-shadow:0 0 0 4px rgba(245,220,15,.22)}
.steps{counter-reset:s;list-style:none;display:grid;gap:18px}
.steps li{position:relative;padding-left:54px;font-size:1.06rem}
.steps li::before{counter-increment:s;content:counter(s);position:absolute;left:0;top:-2px;width:36px;height:36px;border-radius:50%;background:var(--blue);color:#fff;font-family:var(--mono);font-weight:500;display:grid;place-items:center}

/* ---------- pills / route chips ---------- */
.chips{display:flex;flex-wrap:wrap;gap:10px}
.chip{font-family:'Archivo';font-weight:600;font-size:.86rem;background:#fff;border:1px solid var(--line);border-radius:2px;padding:.5em .85em;color:var(--blue)}
.chip b{color:var(--blue);font-family:var(--mono);font-weight:500}

/* ---------- CTA band ---------- */
.cta-band{background:var(--blue);border-top:4px solid var(--gold);color:#fff;text-align:center;padding:74px 0}
.cta-band h2{color:#fff;font-size:clamp(2rem,4vw,3rem);margin-bottom:14px}
.cta-band p{color:#dbe3f2;font-size:1.15rem;margin-bottom:28px}

/* ---------- footer ---------- */
footer.site{background:var(--blue-deep);color:#cdd7ec;padding:60px 0 30px}
footer.site .cols{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:36px}
footer.site .fbrand{display:flex;align-items:center;gap:12px;margin-bottom:16px}
footer.site .fbrand svg{width:46px;height:auto}
footer.site .fbrand b{font-family:'Archivo';font-weight:800;color:#fff;letter-spacing:.04em}
footer.site h4{color:#fff;font-size:.82rem;letter-spacing:.16em;font-family:'Archivo';font-weight:700;margin-bottom:14px;text-transform:uppercase}
footer.site a{color:#cdd7ec;display:block;padding:4px 0;font-size:.96rem}
footer.site a:hover{color:var(--gold)}
footer.site .legal{border-top:1px solid rgba(255,255,255,.12);margin-top:40px;padding-top:22px;font-size:.84rem;color:#8a99bd;display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px}

/* ---------- page hero (interior) ---------- */
.page-hero{background:var(--blue);color:#fff;padding:70px 0 64px;position:relative;overflow:hidden}
.page-hero::after{content:"";position:absolute;right:-60px;top:50%;transform:translateY(-50%);width:280px;height:280px;background:url('mark-tail.svg') center/contain no-repeat;opacity:.10}
.page-hero .kicker{color:var(--gold)}
.page-hero h1{color:#fff;font-size:clamp(2.2rem,4.4vw,3.4rem)}
.page-hero p{color:#dbe3f2;max-width:56ch;margin-top:14px;font-size:1.15rem}

.prose p{margin-bottom:18px;font-size:1.08rem}
.prose h2{margin:40px 0 14px;font-size:1.7rem}
.prose h3{margin:28px 0 10px;font-size:1.25rem;color:var(--ink)}

/* ---------- join links, wide tables ---------- */
nav.main a.nav-join{color:var(--blue);font-weight:700}
.join-m{display:none}
.tbl-scroll{overflow-x:auto;-webkit-overflow-scrolling:touch}

/* ---------- home: hero figures ---------- */
.hero-stats{display:flex;flex-wrap:wrap;gap:24px 30px;margin-top:34px;padding-top:22px;border-top:1px solid rgba(255,255,255,.22)}
.hero-stats .fig{font-family:var(--mono);font-weight:500;font-size:2rem;line-height:1;color:#fff}
.hero-stats .lbl{font-family:'Archivo';font-weight:600;font-size:.72rem;letter-spacing:.14em;text-transform:uppercase;color:rgba(255,255,255,.82);margin-top:8px}
.hero .cta-row .btn-ghost{border-color:rgba(255,255,255,.7)}

/* ---------- home: two ways to fly ---------- */
.ways{display:grid;grid-template-columns:1fr 1fr;gap:28px}
.way{border:1px solid var(--line);border-radius:4px;overflow:hidden;background:#fff;display:flex;flex-direction:column}
.way .ph{aspect-ratio:2/1;max-width:100%;background:var(--blue) center/cover no-repeat}
.way .body{padding:28px 28px 30px;display:flex;flex-direction:column;gap:14px;flex:1}
.way .body .kicker{margin:0}
.way h3{font-size:1.5rem}
.way p{color:var(--slate)}
.way .body>p{margin-top:-4px}
.facts{list-style:none;border-top:1px solid var(--line)}
.facts li{display:grid;grid-template-columns:5.2em 1fr;gap:12px;padding:10px 0;border-bottom:1px solid var(--line);font-size:.98rem}
.facts code{font-family:var(--mono);font-size:.9rem;color:var(--blue);font-weight:500}
.way .btn{align-self:flex-start;margin-top:auto}
.standard{margin-top:28px;display:flex;gap:16px;align-items:center;padding:18px 22px;border-left:3px solid var(--gold);background:var(--mist)}
.standard b{font-family:'Archivo';color:var(--blue)}

/* ---------- home: CFEnet ---------- */
.runs{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.run{border-top:3px solid var(--gold);padding-top:18px}
.run h3{font-size:1.12rem;margin-bottom:8px;color:#fff}
.run p{color:#dbe3f2;font-size:.98rem}
.cfenet-shot{margin:-16px 0 36px;max-width:1021px}
.cfenet-shot img{width:100%;height:auto;border-radius:4px;box-shadow:var(--shadow)}

/* ---------- home: join in three steps ---------- */
.btn-row{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}
.join3{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;counter-reset:j}
.j{background:#fff;border:1px solid var(--line);border-radius:4px;padding:26px 24px}
.j::before{counter-increment:j;content:counter(j);display:grid;place-items:center;width:38px;height:38px;border-radius:50%;background:var(--blue);color:#fff;font-family:var(--mono);font-weight:500;margin-bottom:16px}
.j h3{font-size:1.15rem;margin-bottom:6px}
.j p{color:var(--slate);font-size:.98rem}

/* ---------- responsive ---------- */
@media (max-width:900px){
  .hero .wrap{padding:40px 20px 48px}
  .hero-content{max-width:none}
  .hero::before{background:
    linear-gradient(0deg, rgba(1,20,60,.93) 0%, rgba(1,20,60,.58) 46%, rgba(1,20,60,.34) 100%);}
  /* phones: the aircraft sit in a 2:1 photo band above the text, not behind it */
  .hero-slides{bottom:auto;height:50vw}
  .hero::before{background:linear-gradient(180deg, transparent 0, transparent calc(50vw - 70px), var(--blue) 50vw, var(--blue) 100%)}
  .hero{padding-top:0}
  .hero .wrap{padding:calc(50vw + 26px) 20px 40px}
  .hero-cap{right:20px;bottom:auto;top:calc(50vw - 36px)}
  .hs-crj900{background-image:url('hero-crj900-m.jpg');background-position:center}
  .hero-slides.ready .hs-atr42{background-image:url('hero-atr42-m.jpg');background-position:center}
  .hero-slides.ready .hs-e175{background-image:url('hero-e175-m.jpg');background-position:center}
  .hero-slides.ready .hs-e190{background-image:url('hero-e190-pit-m.jpg');background-position:center}
  .hero-slides.ready .hs-b777{background-image:url('hero-b777-m.jpg');background-position:center}
  .hero-slides.ready .hs-citation{background-image:url('hero-citation-m.jpg');background-position:center}
  .hero-slides.ready .hs-phenom{background-image:url('hero-phenom-m.jpg');background-position:center}
  .cards{grid-template-columns:1fr}
  .split{grid-template-columns:1fr;gap:30px}
  footer.site .cols{grid-template-columns:1fr 1fr}
  nav.main{position:fixed;inset:74px 0 auto 0;background:#fff;flex-direction:column;align-items:flex-start;
    gap:0;padding:8px 28px 22px;border-bottom:1px solid var(--line);box-shadow:var(--shadow);display:none}
  nav.main.open{display:flex}
  nav.main a{width:100%;padding:13px 0;border-bottom:1px solid var(--mist)}
  nav.main a.cta{margin-top:10px;text-align:center}
  .menu-toggle{display:block}
  .join-m{display:inline-block;margin-left:auto;margin-right:16px;background:var(--blue);color:#fff;font-family:'Archivo';font-weight:700;font-size:.9rem;padding:.55em 1.1em;border-radius:2px}
  nav.main a.nav-join{display:none}
}
@media (max-width:560px){
  footer.site .cols{grid-template-columns:1fr}
  .brand .name{font-size:1rem}
}

@media (max-width:900px){
  .ways,.join3{grid-template-columns:1fr}
  .runs{grid-template-columns:1fr 1fr}
}
@media (max-width:560px){
  section{padding:52px 0}
  section.tight{padding:40px 0}
  .section-head{margin-bottom:26px}
  .section-head h2{margin-bottom:10px}
  .hero-stats{display:grid;grid-template-columns:repeat(3,auto);justify-content:start;gap:18px 26px}
  .hero-stats .fig{font-size:1.5rem}
  .ways{gap:20px}
  .way .ph{aspect-ratio:5/2}
  .way .body{padding:20px 18px 22px;gap:10px}
  .facts li{padding:8px 0;font-size:.95rem}
  .standard{margin-top:20px;padding:14px 16px;flex-direction:column;align-items:flex-start;gap:4px}
  .runs{grid-template-columns:1fr;gap:16px}
  .run{padding-top:12px}
  .cfenet-shot{display:none}
  .cards{gap:14px}
  .card{padding:20px 18px}
  .join3{gap:14px}
  .j{padding:20px 18px}
  .j::before{margin-bottom:10px}
  .cta-band{padding:52px 0}
}