/* =========================================================
   AEROCRAFT FLIGHT SERVICES — Design System
   Palette: Midnight Navy / Deep Navy / Silver / Amber / Sky Blue
   Display: 'Space Grotesk'  Body: 'Inter'  Data/Mono: 'JetBrains Mono'
   ========================================================= */

:root{
  --navy-deep:   #0B1F3A;
  --navy-mid:    #0E2647;
  --navy-night:  #061225;
  --white:       #FFFFFF;
  --silver:      #C7CFDA;
  --silver-dim:  #8FA0B5;
  --gray-light:  #F3F5F8;
  --amber:       #F2A93B;
  --amber-dim:   #C8891F;
  --sky:         #3E92CC;
  --sky-dim:     #2C6FA0;
  --line:        rgba(199,207,218,0.16);
  --shadow:      0 20px 50px rgba(6,18,37,0.35);

  --font-display: 'Space Grotesk', sans-serif;
  --font-body: 'Inter', sans-serif;
  --font-mono: 'JetBrains Mono', monospace;

  --radius: 2px;
  --container: 1240px;
}

*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
@media (prefers-reduced-motion: reduce){
  html{scroll-behavior:auto;}
  *,*::before,*::after{animation-duration:0.01ms !important;animation-iteration-count:1 !important;transition-duration:0.01ms !important;scroll-behavior:auto !important;}
}

body{
  margin:0;
  font-family:var(--font-body);
  background:var(--white);
  color:var(--navy-deep);
  -webkit-font-smoothing:antialiased;
  line-height:1.6;
}

img{max-width:100%;display:block;}
svg{width:20px;height:20px;flex:none;}
a{color:inherit;text-decoration:none;}
ul{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{font-family:var(--font-display);margin:0 0 0.5em;color:var(--navy-deep);letter-spacing:-0.01em;}
p{margin:0 0 1em;}
button{font-family:inherit;cursor:pointer;}
:focus-visible{outline:2px solid var(--amber);outline-offset:3px;}

.container{max-width:var(--container);margin:0 auto;padding:0 24px;}
.section{padding:100px 0;}
.section--tight{padding:64px 0;}
.section--navy{background:var(--navy-deep);color:var(--silver);}
.section--navy h2, .section--navy h3{color:var(--white);}
.section--night{background:var(--navy-night);color:var(--silver);}
.section--gray{background:var(--gray-light);}

.eyebrow{
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:0.18em;
  text-transform:uppercase;
  color:var(--sky-dim);
  display:flex;
  align-items:center;
  gap:10px;
  margin-bottom:14px;
}
.section--navy .eyebrow, .section--night .eyebrow{color:var(--amber);}
.eyebrow::before{content:"";width:28px;height:1px;background:currentColor;display:inline-block;}
.eyebrow svg{width:14px;height:14px;}

.section-head{max-width:680px;margin-bottom:48px;}
.section-head h2{font-size:clamp(28px,3.4vw,42px);}
.section-head p{color:var(--silver-dim);font-size:17px;max-width:560px;}
.section--gray .section-head p, .section:not(.section--navy):not(.section--night) .section-head p{color:#4C5A6E;}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  gap:10px;
  padding:15px 28px;
  font-family:var(--font-mono);
  font-size:13px;
  letter-spacing:0.06em;
  text-transform:uppercase;
  border-radius:var(--radius);
  border:1px solid transparent;
  transition:all .25s ease;
  white-space:nowrap;
}
.btn-amber{background:var(--amber);color:var(--navy-night);border-color:var(--amber);}
.btn-amber:hover{background:var(--amber-dim);border-color:var(--amber-dim);transform:translateY(-2px);}
.btn-outline{border-color:var(--silver);color:var(--white);}
.btn-outline:hover{background:rgba(255,255,255,0.08);}
.btn-navy-outline{border-color:var(--navy-deep);color:var(--navy-deep);}
.btn-navy-outline:hover{background:var(--navy-deep);color:var(--white);}
.btn-sky{background:var(--sky);color:var(--white);border-color:var(--sky);}
.btn-sky:hover{background:var(--sky-dim);border-color:var(--sky-dim);}
.btn-block{width:100%;justify-content:center;}
.btn svg{width:15px;height:15px;flex:none;}

/* ---------- Top Bar ---------- */
.topbar{
  background:var(--navy-night);
  color:var(--silver-dim);
  font-family:var(--font-mono);
  font-size:12px;
}
.topbar .container{
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding-top:9px;
  padding-bottom:9px;
  flex-wrap:nowrap;
}
.topbar-left{display:flex;align-items:center;gap:16px;white-space:nowrap;}
.topbar-status{color:var(--amber);display:flex;align-items:center;gap:7px;white-space:nowrap;}
.pulse-dot{width:6px;height:6px;border-radius:50%;background:var(--amber);animation:pulse 1.8s infinite;flex:none;}
@keyframes pulse{0%,100%{opacity:1;}50%{opacity:0.3;}}
.topbar-links{display:flex;gap:16px;white-space:nowrap;}
.topbar-links a{display:inline-flex;align-items:center;gap:5px;}
.topbar-links a svg{width:13px;height:13px;flex:none;}
.topbar-links a:hover{color:var(--white);}
@media (max-width:1400px){.topbar-links a[href="mailto:fltops@aerocraftservices.com"]{display:none;}}
@media (max-width:860px){.topbar-links{display:none;}}
@media (max-width:560px){.topbar-left span:not(.topbar-status){display:none;}}

/* ---------- Header / Nav ---------- */
.site-header{
  position:sticky;top:0;z-index:200;
  background:rgba(11,31,58,0.92);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
}
.nav{
  display:flex;
  align-items:center;
  justify-content:space-between;
  height:78px;
}
.brand{display:flex;align-items:center;gap:12px;color:var(--white);}
.brand-mark{
  width:38px;height:38px;
  border:1px solid var(--amber);
  border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  color:var(--amber);
}
.brand-mark svg{width:20px;height:20px;}
.brand-text{font-family:var(--font-display);font-weight:600;font-size:17px;line-height:1.15;}
.brand-text small{display:block;font-family:var(--font-mono);font-size:10px;letter-spacing:0.14em;color:var(--silver-dim);font-weight:400;text-transform:uppercase;}

.nav-menu{display:flex;align-items:center;gap:34px;}
.nav-menu a{
  color:var(--silver);
  font-size:14px;
  font-weight:500;
  position:relative;
  padding:6px 0;
}
.nav-menu a::after{
  content:"";position:absolute;left:0;bottom:0;width:0;height:1px;background:var(--amber);
  transition:width .25s ease;
}
.nav-menu a:hover{color:var(--white);}
.nav-menu a:hover::after,.nav-menu a.active::after{width:100%;}
.nav-menu a.active{color:var(--white);}

.nav-actions{display:flex;align-items:center;gap:14px;}
.nav-cta{display:none;}
@media (min-width:1080px){.nav-cta{display:inline-flex;}}
.nav-mobile-cta{display:none;}

.nav-toggle{
  display:none;
  flex-direction:column;
  gap:5px;
  background:none;border:0;padding:8px;
}
.nav-toggle span{width:22px;height:2px;background:var(--white);display:block;}

@media (max-width:1080px){
  .nav-menu{
    position:fixed;
    top:78px;left:0;right:0;
    height:calc(100vh - 78px);
    background:var(--navy-deep);
    flex-direction:column;
    align-items:flex-start;
    gap:0;
    padding:20px 24px;
    transform:translateX(100%);
    transition:transform .3s ease;
    overflow-y:auto;
    z-index:199;
  }
  .nav-menu.open{transform:translateX(0);}
  .nav-menu a{width:100%;padding:16px 0;border-bottom:1px solid var(--line);}
  .nav-menu .nav-mobile-cta{display:flex;margin-top:20px;width:100%;}
  .nav-toggle{display:flex;}
}

/* ---------- Hero Slider ---------- */
.hero-slider{
  position:relative;
  height:100vh;
  min-height:560px;
  overflow:hidden;
  background:var(--navy-night);
}
.hero-slide{
  position:absolute;inset:0;
  opacity:0;
  transition:opacity 1.1s ease;
  pointer-events:none;
}
.hero-slide.active{opacity:1;pointer-events:auto;}
.hero-slide img{width:100%;height:100%;object-fit:cover;}
.hero-slide::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg, rgba(6,18,37,0.55) 0%, rgba(6,18,37,0.55) 40%, rgba(6,18,37,0.92) 100%);
}
.hero-content{
  position:absolute;left:0;right:0;bottom:14%;
  z-index:2;color:var(--white);
}
.hero-tag{
  font-family:var(--font-mono);font-size:12.5px;letter-spacing:0.2em;text-transform:uppercase;
  color:var(--amber);display:flex;align-items:center;gap:10px;margin-bottom:18px;
}
.hero-tag::before{content:"";width:34px;height:1px;background:var(--amber);}
.hero-content .hero-headline{
  font-size:clamp(34px,5.6vw,66px);
  max-width:820px;
  line-height:1.05;
  color:var(--white);
  font-family:var(--font-display);
  font-weight:600;
  margin:0 0 0.5em;
  letter-spacing:-0.01em;
}
.hero-content p{max-width:520px;color:var(--silver);font-size:17px;}
.hero-actions{display:flex;gap:16px;margin-top:26px;flex-wrap:wrap;}

.slider-controls{
  position:absolute;bottom:36px;right:24px;z-index:3;
  display:flex;align-items:center;gap:18px;
}
.slider-arrows{display:flex;gap:10px;}
.slider-arrow{
  width:44px;height:44px;border-radius:50%;
  border:1px solid rgba(255,255,255,0.35);
  color:var(--white);background:rgba(255,255,255,0.06);
  display:flex;align-items:center;justify-content:center;
}
.slider-arrow:hover{background:var(--amber);border-color:var(--amber);color:var(--navy-night);}
.slider-arrow svg{width:16px;height:16px;}
.slider-dots{display:flex;gap:9px;}
.slider-dot{width:9px;height:9px;border-radius:50%;background:rgba(255,255,255,0.35);border:0;padding:0;}
.slider-dot.active{background:var(--amber);}

.slider-index{
  position:absolute;left:24px;bottom:36px;z-index:3;
  font-family:var(--font-mono);color:var(--silver-dim);font-size:13px;
}
.slider-index strong{color:var(--white);}

@media (max-width:640px){
  .slider-controls{right:16px;bottom:20px;}
  .slider-index{left:16px;bottom:20px;}
  .hero-content{bottom:18%;}
  .hero-content .container{padding:0 20px;}
}

/* ---------- Trust bar ---------- */
.trust-strip{
  display:flex;flex-wrap:wrap;gap:40px;align-items:center;justify-content:space-between;
  padding-top:26px;border-top:1px solid var(--line);
}
.trust-badges{display:flex;gap:34px;flex-wrap:wrap;}
.trust-badge{
  font-family:var(--font-mono);font-size:14px;letter-spacing:0.08em;color:var(--silver);
  display:flex;align-items:center;gap:8px;
}
.trust-badge::before{content:"";width:6px;height:6px;background:var(--sky);}
.trust-copy{max-width:460px;color:var(--silver-dim);font-size:14.5px;}

/* ---------- Stats ---------- */
.stats-grid{
  display:grid;grid-template-columns:repeat(4,1fr);gap:1px;
  background:var(--line);
  border:1px solid var(--line);
}
.stat-card{background:var(--navy-deep);padding:38px 24px;text-align:left;}
.stat-card svg{width:26px;height:26px;color:var(--amber);}
.stat-num{font-family:var(--font-display);font-size:clamp(30px,3vw,44px);color:var(--amber);font-weight:600;line-height:1;}
.stat-label{font-family:var(--font-mono);font-size:12px;letter-spacing:0.1em;text-transform:uppercase;color:var(--silver-dim);margin-top:10px;}
@media (max-width:760px){.stats-grid{grid-template-columns:repeat(2,1fr);}}

/* ---------- Cards ---------- */
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:28px;}
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;}
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:28px;}
@media (max-width:960px){.grid-3,.grid-4{grid-template-columns:repeat(2,1fr);}}
@media (max-width:640px){.grid-3,.grid-4,.grid-2{grid-template-columns:1fr;}}

.feature-card{
  background:var(--white);
  border:1px solid #E6E9EE;
  padding:32px 26px;
  border-left:2px solid var(--sky);
  transition:transform .25s ease, box-shadow .25s ease, border-color .25s ease;
}
.feature-card:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-left-color:var(--amber);}
.feature-icon{width:44px;height:44px;color:var(--sky);margin-bottom:18px;}
.feature-icon svg{width:100%;height:100%;}
.feature-card h3{font-size:18px;}
.feature-card p{color:#4C5A6E;font-size:14.5px;margin-bottom:0;}

/* Flight-strip style service card (signature element) */
.strip-card{
  display:flex;
  background:var(--white);
  border:1px solid #E1E5EB;
  overflow:hidden;
  transition:box-shadow .25s ease, transform .25s ease;
}
.strip-card:hover{box-shadow:var(--shadow);transform:translateY(-3px);}
.strip-media{width:38%;flex:none;position:relative;overflow:hidden;min-height:220px;}
.strip-media img{width:100%;height:100%;object-fit:cover;position:absolute;inset:0;}
.strip-code{
  position:absolute;top:14px;left:14px;
  font-family:var(--font-mono);font-size:11px;letter-spacing:0.08em;
  background:var(--navy-night);color:var(--amber);
  padding:4px 9px;border:1px solid var(--amber);
}
.strip-body{padding:28px 26px;flex:1;display:flex;flex-direction:column;}
.strip-body h3{font-size:19px;margin-bottom:8px;}
.strip-body p{color:#4C5A6E;font-size:14.5px;flex:1;}
.strip-link{
  font-family:var(--font-mono);font-size:12.5px;letter-spacing:0.06em;text-transform:uppercase;
  color:var(--sky-dim);display:inline-flex;align-items:center;gap:8px;margin-top:12px;
}
.strip-link svg{width:13px;height:13px;transition:transform .2s ease;}
.strip-card:hover .strip-link svg{transform:translateX(4px);}
@media (max-width:760px){.strip-card{flex-direction:column;}.strip-media{width:100%;height:190px;min-height:0;}}

/* Airport card */
.airport-card{
  background:var(--navy-deep);color:var(--silver);
  border:1px solid var(--line);
  overflow:hidden;
}
.airport-media{height:170px;position:relative;overflow:hidden;}
.airport-media img{width:100%;height:100%;object-fit:cover;}
.airport-icao{
  position:absolute;top:14px;right:14px;
  font-family:var(--font-mono);font-weight:700;font-size:22px;letter-spacing:0.05em;
  color:var(--white);background:rgba(6,18,37,0.75);
  border:1px solid var(--amber);padding:6px 12px;
}
.airport-body{padding:24px 24px 26px;}
.airport-body h3{color:var(--white);font-size:18px;margin-bottom:2px;}
.airport-body .airport-city{font-family:var(--font-mono);font-size:12px;color:var(--amber);letter-spacing:0.08em;text-transform:uppercase;margin-bottom:14px;}
.airport-caps{display:flex;flex-wrap:wrap;gap:8px;margin-top:10px;}
.airport-cap{
  font-family:var(--font-mono);font-size:11.5px;color:var(--silver);
  border:1px solid var(--line);padding:5px 10px;
}

/* ---------- Timeline ---------- */
.timeline{border-left:1px solid var(--line);margin-left:8px;}
.timeline-item{position:relative;padding:0 0 46px 34px;}
.timeline-item:last-child{padding-bottom:0;}
.timeline-item::before{
  content:"";position:absolute;left:-6px;top:2px;width:11px;height:11px;border-radius:50%;
  background:var(--amber);border:2px solid var(--navy-night);
}
.timeline-year{font-family:var(--font-mono);color:var(--amber);font-size:13px;letter-spacing:0.1em;margin-bottom:6px;}
.timeline-item h3{font-size:19px;color:var(--white);}
.timeline-item p{color:var(--silver-dim);font-size:14.5px;max-width:520px;}

/* ---------- Detail sections (service/permit pages) ---------- */
.detail-list{display:grid;grid-template-columns:repeat(2,1fr);gap:18px;margin-top:8px;}
@media (max-width:640px){.detail-list{grid-template-columns:1fr;}}
.detail-item{
  display:flex;gap:14px;padding:20px;background:var(--white);border:1px solid #E6E9EE;border-left:2px solid var(--amber);
}
.detail-item .num{font-family:var(--font-mono);color:var(--sky);font-size:13px;flex:none;padding-top:2px;}
.detail-item h4{font-size:15.5px;margin-bottom:4px;}
.detail-item p{font-size:13.5px;color:#4C5A6E;margin-bottom:0;}

.split{display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:center;}
@media (max-width:860px){.split{grid-template-columns:1fr;gap:36px;}}
.split-media{position:relative;}
.split-media img{width:100%;height:100%;object-fit:cover;min-height:320px;}
.split-media::before{
  content:"";position:absolute;top:-14px;left:-14px;width:70px;height:70px;border-top:2px solid var(--amber);border-left:2px solid var(--amber);
}

/* ---------- CTA banner ---------- */
.cta-banner{
  background:var(--navy-night);
  padding:80px 0;
  text-align:center;
  position:relative;
  overflow:hidden;
}
.cta-banner::before{
  content:"";position:absolute;inset:0;
  background:radial-gradient(circle at 20% 20%, rgba(62,146,204,0.18), transparent 45%),
             radial-gradient(circle at 80% 80%, rgba(242,169,59,0.14), transparent 45%);
}
.cta-banner .container{position:relative;}
.cta-banner h2{color:var(--white);font-size:clamp(26px,3.4vw,40px);max-width:640px;margin:0 auto 12px;}
.cta-banner p{color:var(--silver-dim);max-width:480px;margin:0 auto 30px;}
.cta-actions{display:flex;gap:16px;justify-content:center;flex-wrap:wrap;}

/* ---------- Forms ---------- */
.form-panel{background:var(--white);border:1px solid #E6E9EE;padding:36px;box-shadow:var(--shadow);}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px;}
@media (max-width:640px){.form-grid{grid-template-columns:1fr;}}
.field{display:flex;flex-direction:column;gap:7px;margin-bottom:18px;}
.field label{font-family:var(--font-mono);font-size:11.5px;letter-spacing:0.08em;text-transform:uppercase;color:var(--navy-mid);}
.field input,.field select,.field textarea{
  padding:12px 14px;border:1px solid #D6DCE3;background:var(--gray-light);
  font-family:var(--font-body);font-size:14.5px;color:var(--navy-deep);border-radius:var(--radius);
}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:var(--sky);background:var(--white);}
.field-full{grid-column:1 / -1;}
.form-note{font-size:12.5px;color:var(--silver-dim);margin-top:10px;}
.section--navy .form-note{color:var(--silver-dim);}

/* ---------- Footer ---------- */
.site-footer{background:var(--navy-night);color:var(--silver-dim);padding-top:70px;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:50px;border-bottom:1px solid var(--line);}
@media (max-width:860px){.footer-grid{grid-template-columns:1fr 1fr;}}
@media (max-width:520px){.footer-grid{grid-template-columns:1fr;}}
.footer-brand p{font-size:13.5px;max-width:280px;color:var(--silver-dim);}
.footer-col h4{font-family:var(--font-mono);font-size:12px;letter-spacing:0.1em;text-transform:uppercase;color:var(--white);margin-bottom:16px;}
.footer-col ul li{margin-bottom:10px;font-size:14px;}
.footer-col ul li a:hover{color:var(--amber);}
.footer-licensing{display:flex;gap:16px;flex-wrap:wrap;margin-top:6px;}
.footer-licensing span{
  font-family:var(--font-mono);font-size:11px;border:1px solid var(--line);padding:5px 9px;color:var(--silver);
}
.footer-bottom{
  display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:12px;
  padding:26px 0;font-size:12.5px;
}
.footer-bottom a:hover{color:var(--amber);}

/* ---------- WhatsApp float ---------- */
.wa-float{
  position:fixed;right:22px;bottom:22px;z-index:300;
  width:56px;height:56px;border-radius:50%;
  background:#25D366;color:#fff;
  display:flex;align-items:center;justify-content:center;
  box-shadow:0 10px 25px rgba(0,0,0,0.3);
  animation:float-in .4s ease;
}
.wa-float svg{width:26px;height:26px;}
.wa-float:hover{transform:scale(1.06);}
@keyframes float-in{from{opacity:0;transform:translateY(20px);}to{opacity:1;transform:translateY(0);}}

/* ---------- Modal ---------- */
.modal-overlay{
  position:fixed;inset:0;background:rgba(6,18,37,0.75);
  display:flex;align-items:center;justify-content:center;
  z-index:500;opacity:0;pointer-events:none;transition:opacity .25s ease;padding:20px;
}
.modal-overlay.open{opacity:1;pointer-events:auto;}
.modal-box{
  background:var(--white);max-width:640px;width:100%;max-height:88vh;overflow-y:auto;
  padding:40px;position:relative;transform:translateY(14px);transition:transform .25s ease;
}
.modal-overlay.open .modal-box{transform:translateY(0);}
.modal-close{position:absolute;top:18px;right:18px;background:none;border:0;width:34px;height:34px;color:var(--navy-deep);}
.modal-close svg{width:20px;height:20px;}

/* ---------- Scroll reveal ---------- */
.reveal{opacity:0;transform:translateY(24px);transition:opacity .7s ease, transform .7s ease;}
.reveal.in{opacity:1;transform:translateY(0);}

/* ---------- Page hero (inner pages) ---------- */
.page-hero{
  background:var(--navy-deep);
  position:relative;overflow:hidden;
  padding:150px 0 70px;
  color:var(--white);
}
.page-hero::after{
  content:"";position:absolute;inset:0;
  background:radial-gradient(circle at 85% 20%, rgba(242,169,59,0.14), transparent 40%);
}
.page-hero .container{position:relative;}
.breadcrumb{
  font-family:var(--font-mono);font-size:12px;letter-spacing:0.08em;text-transform:uppercase;
  color:var(--silver-dim);margin-bottom:18px;
}
.breadcrumb a:hover{color:var(--amber);}
.page-hero h1{font-size:clamp(30px,4vw,50px);max-width:760px;color:var(--white);}
.page-hero p{max-width:600px;color:var(--silver);font-size:16.5px;}

/* misc utility */
.center{text-align:center;margin-left:auto;margin-right:auto;}
.mt-40{margin-top:40px;}
.divider{height:1px;background:var(--line);margin:60px 0;}
.tag-row{display:flex;gap:10px;flex-wrap:wrap;margin-top:18px;}
.tag{font-family:var(--font-mono);font-size:11.5px;color:var(--sky-dim);border:1px solid var(--sky);padding:5px 11px;}