/* Dunyx Aviation Academy — flight-deck theme (same blue system as the DX-3 Flight Computer) */
:root{
  --bg:#040a14; --bg2:#020812;
  --text:#f2f8ff; --muted:#c3d6ee; --dim:#93aed0;
  --accent:#3aa5ff; --accent2:#8fd3ff; --cyan:#5ef2ff; --royal:#1e6bff; --ink:#021120;
  --line:rgba(110,190,255,.16); --line2:rgba(110,190,255,.32);
  --card:rgba(6,17,34,.64);
  --glow:0 0 14px rgba(94,242,255,.45);
  --display:"Michroma","Eurostile","Segoe UI",system-ui,sans-serif;
  --sans:"Inter","Segoe UI Variable","Segoe UI",system-ui,-apple-system,Roboto,"Helvetica Neue",Arial,sans-serif;
  --mono:"JetBrains Mono",ui-monospace,"SF Mono","Cascadia Mono",Menlo,Consolas,monospace;
  color-scheme:dark;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:auto;-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--text);font-family:var(--sans);font-size:16px;line-height:1.6;overflow-x:hidden;-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
::selection{background:rgba(58,165,255,.45)}

/* 3D canvas + atmosphere layers */
#sky{position:fixed;inset:0;width:100%;height:100%;display:block;z-index:0}
.vignette{position:fixed;inset:0;z-index:1;pointer-events:none;
  background:radial-gradient(120% 90% at 50% 45%,transparent 55%,rgba(1,4,10,.72) 100%)}
.scan{position:fixed;inset:0;z-index:1;pointer-events:none;opacity:.05;
  background:repeating-linear-gradient(to bottom,rgba(140,210,255,.9) 0 1px,transparent 1px 4px)}
body.no3d{background:
  radial-gradient(900px 500px at 80% -10%,rgba(58,165,255,.22),transparent 60%),
  radial-gradient(700px 500px at 0% 30%,rgba(94,242,255,.08),transparent 60%),var(--bg);background-attachment:fixed}
body.no3d #sky{display:none}

/* Boot loader */
#boot{position:fixed;inset:0;z-index:100;background:var(--bg2);display:grid;place-items:center;transition:opacity .9s ease,visibility .9s}
#boot.done{opacity:0;visibility:hidden;pointer-events:none}
.boot-in{width:min(420px,82vw);text-align:center}
.boot-in img{width:150px;height:auto;filter:drop-shadow(0 0 26px rgba(58,165,255,.55));animation:breathe 2.4s ease-in-out infinite}
@keyframes breathe{50%{filter:drop-shadow(0 0 44px rgba(94,242,255,.8))}}
.boot-log{margin:26px 0 14px;font:500 11px var(--mono);letter-spacing:.22em;color:var(--accent2);height:16px}
.boot-bar{height:2px;background:rgba(110,190,255,.14);overflow:hidden;border-radius:2px}
.boot-bar i{display:block;height:100%;width:0;background:linear-gradient(90deg,var(--royal),var(--cyan));box-shadow:var(--glow);transition:width .35s ease}
.boot-pct{margin-top:10px;font:500 10px var(--mono);letter-spacing:.3em;color:var(--dim)}

/* Top navigation */
.nav{position:fixed;top:0;left:0;right:0;z-index:20;display:flex;align-items:center;gap:28px;
  padding:16px clamp(16px,4vw,48px);transition:background .4s,backdrop-filter .4s,border-color .4s;border-bottom:1px solid transparent}
.nav.solid{background:rgba(3,9,20,.62);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);border-color:var(--line)}
.nav .logo img{height:34px;width:auto;display:block;filter:drop-shadow(0 0 10px rgba(58,165,255,.35))}
.nav .links{margin-left:auto;display:flex;gap:26px;font:500 11.5px var(--mono);letter-spacing:.2em;text-transform:uppercase;color:#d3e3f6;text-shadow:0 1px 8px rgba(1,5,12,.9)}
.nav .links a{position:relative;padding:6px 0;transition:color .25s}
.nav .links a::after{content:"";position:absolute;left:0;right:100%;bottom:0;height:1px;background:var(--cyan);box-shadow:var(--glow);transition:right .3s}
.nav .links a:hover,.nav .links a.on{color:var(--text)}
.nav .links a:hover::after,.nav .links a.on::after{right:0}
@media (max-width:1100px){.nav .links{display:none}.nav .btn{margin-left:auto}}

/* Buttons */
.btn{position:relative;display:inline-flex;align-items:center;gap:10px;padding:13px 22px;border-radius:999px;backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);
  font:600 11.5px var(--mono);letter-spacing:.2em;text-transform:uppercase;white-space:nowrap;
  border:1px solid rgba(110,190,255,.5);background:rgba(4,16,34,.42);color:var(--text);
  transition:transform .25s cubic-bezier(.2,.8,.2,1),box-shadow .3s,background .3s,border-color .3s}
.btn:hover{border-color:var(--cyan);box-shadow:0 0 28px rgba(94,242,255,.28),inset 0 0 18px rgba(94,242,255,.1)}
.btn.primary{background:linear-gradient(120deg,var(--royal),var(--accent) 55%,var(--cyan));color:#01101f;border-color:transparent;
  box-shadow:0 0 34px rgba(58,165,255,.45)}
.btn.primary:hover{box-shadow:0 0 54px rgba(94,242,255,.7)}
.btn.small{padding:10px 16px;font-size:10.5px}
.btn[href^="mailto:"]{text-transform:none;letter-spacing:.08em}
.btn svg{width:14px;height:14px;flex:none}

/* Sections */
main{position:relative;z-index:5}
.panel{position:relative;min-height:150vh;display:flex;align-items:center;padding:110px clamp(16px,6vw,96px)}
.panel.hero{min-height:100vh}
.panel.last{min-height:100vh}
.panel>.content{width:min(600px,100%);position:relative;isolation:isolate}
.panel.right{justify-content:flex-end}
.panel.wide>.content{width:min(660px,100%)}

.eyebrow{display:flex;align-items:center;gap:12px;text-shadow:0 1px 8px rgba(1,5,12,.95);font:600 12px var(--mono);letter-spacing:.3em;text-transform:uppercase;color:var(--cyan);margin:0 0 20px}
.eyebrow::before{content:"";width:34px;height:1px;background:var(--cyan);box-shadow:var(--glow)}
h1,h2{font-family:var(--display);font-weight:400;margin:0;letter-spacing:.01em;text-wrap:balance}
h1{font-size:clamp(30px,4.5vw,66px);line-height:1.12;text-shadow:0 2px 18px rgba(1,5,12,.95),0 0 40px rgba(58,165,255,.3)}
h2{font-size:clamp(24px,3vw,42px);line-height:1.18;text-shadow:0 2px 16px rgba(1,5,12,.95),0 0 30px rgba(58,165,255,.25)}
.grad{text-shadow:none;background:linear-gradient(100deg,#fff 0%,#bfe9ff 30%,var(--cyan) 72%,#8fd3ff 100%);-webkit-background-clip:text;background-clip:text;color:transparent}
.lede{font-size:clamp(16px,1.3vw,19px);color:#eef5ff;margin:0;display:inline;line-height:1.95;padding:.16em .42em;border-radius:5px;background:rgba(2,9,20,.5);-webkit-box-decoration-break:clone;box-decoration-break:clone;text-shadow:0 1px 3px rgba(1,5,12,.95)}
.content h1,.content h2{margin-bottom:20px}
.content .lede+*{margin-top:30px}
.cta{display:flex;flex-wrap:wrap;gap:14px;margin-top:34px}
.hint{display:flex;align-items:center;gap:12px;margin-top:54px;font:500 11px var(--mono);letter-spacing:.3em;color:var(--accent2);text-shadow:0 1px 8px rgba(1,5,12,.95);text-transform:uppercase}
.hint i{width:1px;height:44px;background:linear-gradient(var(--cyan),transparent);position:relative;overflow:hidden}
.hint i::after{content:"";position:absolute;left:0;top:-40%;width:1px;height:40%;background:#fff;animation:drop 1.8s ease-in infinite}
@keyframes drop{to{top:110%}}

/* Reveal on scroll */
.rv{opacity:0;transform:translateY(28px);filter:blur(8px);transition:opacity .9s ease,transform .9s cubic-bezier(.2,.8,.2,1),filter .9s ease;transition-delay:calc(var(--i,0)*90ms)}
.in .rv{opacity:1;transform:none;filter:none}

/* Glass cards */
.glass{position:relative;border-radius:18px;background:var(--card);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  box-shadow:inset 0 1px 0 rgba(190,230,255,.12),0 24px 60px rgba(0,0,0,.45)}
.glass::before{content:"";position:absolute;inset:0;border-radius:inherit;padding:1px;pointer-events:none;
  background:linear-gradient(150deg,rgba(94,242,255,.7),rgba(58,165,255,.12) 30%,rgba(58,165,255,.05) 62%,rgba(58,165,255,.6));
  -webkit-mask:linear-gradient(#000 0 0) content-box,linear-gradient(#000 0 0);-webkit-mask-composite:xor;
  mask:linear-gradient(#000 0 0) content-box exclude,linear-gradient(#000 0 0)}

/* Facts row */
.facts{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:34px}
.fact{padding:16px 16px 14px}
.fact b{display:block;font:400 15px var(--display);color:var(--accent2);margin-bottom:6px}
.fact span{font-size:13.5px;color:var(--muted);line-height:1.45;display:block}

/* Program cards */
.cards{display:grid;grid-template-columns:repeat(2,1fr);gap:14px;margin-top:32px;perspective:900px}
.card{padding:20px 20px 18px;transform-style:preserve-3d;transition:transform .25s ease-out,box-shadow .3s;will-change:transform}
.card:hover{box-shadow:inset 0 1px 0 rgba(190,230,255,.2),0 30px 70px rgba(0,0,0,.5),0 0 44px rgba(58,165,255,.22)}
.card .code{font:600 10px var(--mono);letter-spacing:.26em;color:var(--cyan)}
.card h3{font:400 15.5px var(--display);margin:10px 0 8px;letter-spacing:.02em}
.card p{margin:0;font-size:14px;color:var(--muted);line-height:1.5}
.card .shine{position:absolute;inset:0;border-radius:inherit;pointer-events:none;opacity:0;transition:opacity .3s;
  background:radial-gradient(260px 200px at var(--mx,50%) var(--my,50%),rgba(94,242,255,.16),transparent 70%)}
.card:hover .shine{opacity:1}
.card.span{grid-column:1/-1}

/* Live instruments */
.gauges{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:30px;max-width:540px}
.gauge{margin:0;padding:12px 12px 10px;text-align:center}
.gauge svg{width:100%;height:auto;display:block;overflow:visible}
.gauge figcaption{font:600 9.5px var(--mono);letter-spacing:.22em;color:var(--accent2);margin-top:8px}
.gauge figure{margin:0}
.note{margin-top:18px;text-shadow:0 1px 8px rgba(1,5,12,.95);font:500 11.5px var(--mono);letter-spacing:.14em;color:var(--dim);text-transform:uppercase}
.note b{color:var(--cyan);font-weight:600}
.g-bezel{fill:#020a16;stroke:rgba(110,190,255,.35);stroke-width:1.5}
.g-tick{stroke:#bfe4ff;stroke-width:1.6;stroke-linecap:round}
.g-tick.min{stroke:rgba(143,211,255,.5);stroke-width:1}
.g-num{fill:#d5f3ff;font:600 13px var(--mono);text-anchor:middle;dominant-baseline:central}
.g-needle{stroke:#fff;stroke-width:3;stroke-linecap:round;filter:drop-shadow(0 0 4px rgba(94,242,255,.9))}
.g-needle.s{stroke:var(--cyan);stroke-width:4.5}
.g-read{fill:var(--cyan);font:600 12px var(--mono);text-anchor:middle;letter-spacing:.06em}
.g-lbl{fill:var(--accent2);font:600 8px var(--mono);text-anchor:middle;letter-spacing:.2em}

/* DX-3 block */
.dx{display:grid;grid-template-columns:1fr;gap:0;margin-top:30px;padding:22px}
.dx .lcd{font-family:var(--mono);border-radius:12px;padding:16px 18px;background:
  linear-gradient(rgba(94,242,255,.05) 1px,transparent 1px) 0 0/100% 22px,linear-gradient(90deg,rgba(94,242,255,.04) 1px,transparent 1px) 0 0/22px 100%,#020812;
  box-shadow:inset 0 0 0 1px rgba(110,190,255,.18),inset 0 0 30px rgba(58,165,255,.12)}
.lcd .row{display:flex;justify-content:space-between;gap:16px;font-size:13.5px;padding:5px 0;color:#c9dcf2;border-bottom:1px dashed rgba(110,190,255,.12)}
.lcd .row:last-child{border:0}
.lcd .row b{color:var(--cyan);font-weight:600;text-shadow:var(--glow)}
.lcd .ttl{font-size:10px;letter-spacing:.28em;color:var(--accent2);margin-bottom:8px;display:flex;justify-content:space-between}
.lcd .ttl i{font-style:normal;color:var(--cyan);animation:blink 1.2s steps(2) infinite}
@keyframes blink{50%{opacity:.25}}

/* Flight path steps */
.steps{list-style:none;margin:32px 0 0;padding:0;position:relative}
.steps::before{content:"";position:absolute;left:17px;top:10px;bottom:10px;width:1px;background:linear-gradient(var(--cyan),rgba(58,165,255,.15))}
.steps li{position:relative;padding:0 0 22px 56px}
.steps li:last-child{padding-bottom:0}
.steps .n{position:absolute;left:0;top:0;width:35px;height:35px;border-radius:50%;display:grid;place-items:center;
  font:600 11px var(--mono);color:var(--cyan);background:#03101f;border:1px solid var(--line2);box-shadow:0 0 16px rgba(94,242,255,.25)}
.steps b{display:block;font:400 15px var(--display);letter-spacing:.02em}
.steps span{display:block;font-size:14.5px;color:#dbe8f8;margin-top:4px;text-shadow:0 1px 3px rgba(1,5,12,.95),0 1px 12px rgba(2,8,18,.9)}
.steps b{text-shadow:0 1px 10px rgba(1,5,12,.95)}

/* Final section */
.final .badge{width:min(230px,52vw);height:auto;display:block;margin:0 0 26px -14px;filter:drop-shadow(0 0 40px rgba(58,165,255,.5))}
footer{position:relative;z-index:5;padding:22px clamp(16px,6vw,96px) 92px;display:flex;flex-wrap:wrap;gap:10px 28px;justify-content:space-between;
  font:500 10.5px var(--mono);letter-spacing:.18em;color:var(--dim);text-transform:uppercase;border-top:1px solid var(--line);background:rgba(2,8,18,.55);backdrop-filter:blur(10px)}

/* HUD */
.hud{position:fixed;left:0;right:0;bottom:0;z-index:15;display:flex;align-items:flex-end;justify-content:space-between;gap:20px;
  padding:0 clamp(16px,4vw,48px) 20px;pointer-events:none;font-family:var(--mono)}
.hud .tele{display:flex;gap:26px}
.hud .cell small{display:block;font-size:9.5px;letter-spacing:.3em;color:var(--accent2)}
.hud{text-shadow:0 1px 8px rgba(1,5,12,.95)}
.hud .cell b{display:block;font-size:17px;font-weight:600;color:var(--scrInk,#d5f3ff);letter-spacing:.06em;text-shadow:var(--glow);font-variant-numeric:tabular-nums}
.hud .cell b em{font-style:normal;font-size:10px;color:var(--accent2);margin-left:4px;letter-spacing:.16em}
.hud .ticker{font-size:10.5px;letter-spacing:.32em;color:var(--cyan);text-shadow:var(--glow);text-align:center;flex:1;white-space:nowrap;transition:opacity .35s}
.hud .phase{text-align:right}
.hud .phase b{color:var(--cyan)}
.dots{position:fixed;right:clamp(10px,2vw,26px);top:50%;transform:translateY(-50%);z-index:15;display:flex;flex-direction:column;gap:14px}
.dots button{position:relative;width:14px;height:14px;display:grid;place-items:center}
.dots button::before{content:"";width:5px;height:5px;border-radius:50%;background:rgba(143,211,255,.35);transition:all .3s}
.dots button.on::before{width:9px;height:9px;background:var(--cyan);box-shadow:var(--glow)}
.dots button span{position:absolute;right:22px;top:50%;transform:translateY(-50%);font:600 9px var(--mono);letter-spacing:.24em;color:var(--accent2);white-space:nowrap;opacity:0;transition:opacity .25s;pointer-events:none}
.dots button:hover span,.dots button.on span{opacity:1}

/* Cursor reticle (desktop only) */
.reticle{position:fixed;left:0;top:0;z-index:60;width:34px;height:34px;margin:-17px 0 0 -17px;border-radius:50%;border:1px solid rgba(94,242,255,.55);
  pointer-events:none;transition:width .25s,height .25s,margin .25s,border-color .25s,background .25s;mix-blend-mode:screen;display:none}
.reticle::after{content:"";position:absolute;left:50%;top:50%;width:3px;height:3px;margin:-1.5px;border-radius:50%;background:var(--cyan);box-shadow:var(--glow)}
.reticle.hot{width:58px;height:58px;margin:-29px 0 0 -29px;border-color:var(--cyan);background:rgba(94,242,255,.08)}
@media (hover:hover) and (pointer:fine){.reticle{display:block}}

/* Phones and small tablets */
@media (max-width:820px){
  .panel{padding:96px 16px;min-height:135vh}
  .panel.right{justify-content:flex-start}
  .panel>.content,.panel.wide>.content{width:100%}
  .panel:not(.hero):not(.last)>.content{padding:22px 18px;border-radius:20px;background:rgba(3,10,22,.62);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);border:1px solid var(--line)}
  .panel.hero{align-items:flex-end;padding-bottom:120px}
  .panel.last{align-items:flex-end;padding-bottom:96px}
  .final .badge{display:none}
  .facts{grid-template-columns:1fr}
  .cards{grid-template-columns:1fr}
  .gauges{grid-template-columns:repeat(2,1fr)}
  .hint{margin-top:30px}
  .dots{display:none}
  .hud{padding-bottom:12px}
  .hud .tele{gap:16px}
  .hud .ticker,.hud .cell.hdg{display:none}
  .hud .cell b{font-size:14px}
  .nav .logo img{height:28px}
  .final .badge{margin-left:-8px}
  footer{padding-bottom:76px}
}
@media (prefers-reduced-motion:reduce){
  .rv{transition:none;opacity:1;transform:none;filter:none}
  .hint i::after,.boot-in img,.lcd .ttl i{animation:none}
}

/* Sound toggle + entry gate */
body.locked{overflow:hidden}
.boot-go{display:flex;flex-wrap:wrap;gap:12px;justify-content:center;margin-top:-34px;animation:rise .6s ease both}
.boot-go[hidden]{display:none}
@keyframes rise{from{opacity:0;transform:translateY(10px)}}
.boot-bar,.boot-pct{transition:opacity .3s}
.snd{margin-left:auto;gap:9px}
.nav .links{margin-left:auto}
.nav .links+.snd{margin-left:0}
.eq{display:inline-flex;align-items:flex-end;gap:2px;height:11px}
.eq i{width:2px;height:3px;background:var(--dim);border-radius:1px;transition:background .3s}
.snd.on .eq i{background:var(--cyan);box-shadow:var(--glow);animation:eq 1s ease-in-out infinite}
.snd.on .eq i:nth-child(2){animation-delay:-.35s}.snd.on .eq i:nth-child(3){animation-delay:-.7s}.snd.on .eq i:nth-child(4){animation-delay:-.15s}
@keyframes eq{0%,100%{height:3px}50%{height:11px}}
@media (max-width:1100px){.nav{gap:10px}.nav .btn{margin-left:0}.nav .links+.snd{margin-left:auto}}
.btn.ig{text-transform:none;letter-spacing:.08em}
@media (max-width:480px){#sndLbl{display:none}.snd{padding:10px 12px}}
@media (prefers-reduced-motion:reduce){.snd.on .eq i{animation:none;height:8px}}
.nav .links a{white-space:nowrap}
.hud{transition:opacity .35s}
.hud.off{opacity:0}
@media (max-width:820px){.panel:not(.hero):not(.last) .lede{background:none;padding:0;line-height:1.6}.gauges{max-width:none}}