/* ==========================================================================
   HEAVY TRUCK LOGISTICS — Feuille de style principale
   Charte graphique : Vert #00BF63 · Noir #0A0A0A · Blanc #FFFFFF
   Titres : Archivo (condensé, majuscules, gras) · Texte : Inter
   ========================================================================== */

/* ------------------------------ Variables ------------------------------- */
:root{
  --green:#00BF63;
  --green-dark:#00A455;
  --green-deep:#04713B;
  --green-soft:#E8FBF1;
  --black:#0A0A0A;
  --ink:#111418;
  --grey:#5C6470;
  --grey-light:#EEF1F4;
  --line:#E1E6EA;
  --white:#FFFFFF;

  --font-display:"Archivo","Arial Narrow",Arial,sans-serif;
  --font-body:"Inter",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;

  --radius:16px;
  --radius-sm:10px;
  --shadow:0 10px 30px rgba(10,10,10,.10);
  --shadow-lg:0 26px 60px rgba(10,10,10,.16);
  --container:1200px;
  --header-h:82px;
}

/* ------------------------------- Reset ---------------------------------- */
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:var(--font-body);
  font-size:16px;
  line-height:1.7;
  color:var(--ink);
  background:var(--white);
  overflow-x:hidden;
}
img{max-width:100%;display:block;height:auto;}
h1,h2,h3,h4{
  font-family:var(--font-display);
  line-height:1.06;
  margin:0 0 .6em;
  letter-spacing:.01em;
  color:var(--black);
}
p{margin:0 0 1em;}
a{color:inherit;text-decoration:none;}
ul{margin:0;padding:0;list-style:none;}
button,input,select,textarea{font:inherit;color:inherit;}
:focus-visible{outline:3px solid var(--green);outline-offset:3px;border-radius:4px;}

.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px;}

.skip-link{
  position:absolute;left:-9999px;top:0;z-index:200;
  background:var(--green);color:#fff;padding:12px 18px;font-weight:600;
}
.skip-link:focus{left:12px;top:12px;}

/* ============================== HEADER ================================== */
.site-header{
  position:fixed;inset:0 0 auto 0;z-index:100;
  background:rgba(10,10,10,.55);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  transition:background .3s ease, box-shadow .3s ease, border-color .3s ease;
  border-bottom:1px solid rgba(255,255,255,.10);
}
.site-header.scrolled{
  background:rgba(10,10,10,.94);
  box-shadow:0 8px 30px rgba(0,0,0,.35);
}
.header-inner{
  display:flex;align-items:center;justify-content:space-between;
  gap:20px;min-height:var(--header-h);
}

/* ------------------------------- Logo ----------------------------------
   Le logo officiel (vert foncé + texte anthracite, fond transparent) est
   posé sur une plaque claire pour rester lisible sur les fonds sombres,
   comme dans la présentation d'origine.                                  */
.brand{
  display:inline-flex;align-items:center;
  background:#fff;border-radius:12px;
  padding:8px 15px;
  box-shadow:0 8px 22px rgba(0,0,0,.28);
  line-height:0;
  transition:transform .25s ease, box-shadow .25s ease;
}
.brand:hover{transform:translateY(-1px);box-shadow:0 12px 26px rgba(0,0,0,.34);}
.brand-logo{height:44px;width:auto;display:block;}
.brand--footer{padding:9px 16px;}
.brand--footer .brand-logo{height:46px;}

/* --------------------------- Navigation --------------------------------- */
.nav-toggle{
  display:none;width:46px;height:44px;border:0;background:transparent;
  cursor:pointer;padding:10px;border-radius:10px;
}
.nav-toggle span{
  display:block;height:2.5px;width:100%;background:#fff;border-radius:2px;
  transition:transform .3s ease, opacity .25s ease;
}
.nav-toggle span + span{margin-top:5px;}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7.5px) rotate(45deg);}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0;}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7.5px) rotate(-45deg);}

.primary-nav ul{display:flex;align-items:center;gap:6px;}
.primary-nav a{
  display:block;padding:10px 14px;border-radius:999px;
  font-size:14.5px;font-weight:500;color:rgba(255,255,255,.86);
  transition:color .2s ease, background .2s ease;
}
.primary-nav a:hover{color:#fff;background:rgba(255,255,255,.10);}
.primary-nav .nav-cta{
  background:var(--green);color:#fff;font-weight:600;
  padding:11px 22px;box-shadow:0 8px 20px rgba(0,191,99,.35);
}
.primary-nav .nav-cta:hover{background:var(--green-dark);}

/* =============================== HERO =================================== */
.hero{
  position:relative;
  min-height:100svh;
  display:flex;align-items:center;
  padding:calc(var(--header-h) + 60px) 0 70px;
  overflow:hidden;
  background:var(--black);
}
.hero-bg{position:absolute;inset:0;}
.hero-bg img{width:100%;height:100%;object-fit:cover;opacity:.55;}
.hero-overlay{
  position:absolute;inset:0;
  background:
    radial-gradient(1100px 620px at 88% 12%, rgba(0,191,99,.30), transparent 62%),
    linear-gradient(100deg, rgba(6,8,10,.96) 0%, rgba(8,12,10,.86) 42%, rgba(6,10,8,.50) 78%),
    linear-gradient(0deg, rgba(6,8,10,.92) 0%, transparent 55%);
}
.hero-lines{
  position:absolute;inset:0;width:100%;height:100%;
  opacity:.55;pointer-events:none;
}
.hero-content{position:relative;z-index:2;max-width:860px;}

.eyebrow{
  display:inline-flex;align-items:center;gap:10px;
  font-size:13px;font-weight:600;letter-spacing:.16em;text-transform:uppercase;
  color:rgba(255,255,255,.80);
  margin-bottom:22px;
}
.eyebrow .dot{
  width:9px;height:9px;border-radius:50%;background:var(--green);
  box-shadow:0 0 0 5px rgba(0,191,99,.22);
}

.hero h1{
  font-size:clamp(2.9rem,8.2vw,6.4rem);
  font-weight:900;text-transform:uppercase;
  letter-spacing:-.01em;line-height:.94;
  color:#fff;margin:0 0 6px;
}
.hero h1 .line-1{display:block;}
.hero h1 .line-2{display:block;color:var(--green);}
.hero-tag{
  font-family:var(--font-display);
  font-size:clamp(1.1rem,2.6vw,1.85rem);
  font-weight:800;letter-spacing:.30em;text-transform:uppercase;
  color:#fff;margin:14px 0 22px;
}
.hero-tag::after{
  content:"";display:block;width:96px;height:5px;border-radius:3px;
  background:var(--green);margin-top:22px;
}
.hero-text{
  max-width:640px;font-size:1.06rem;color:rgba(255,255,255,.84);
  margin-bottom:32px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:30px;}
.hero-badges{display:flex;flex-wrap:wrap;gap:14px 28px;}
.hero-badges li{
  display:flex;align-items:center;gap:10px;
  font-size:14px;color:rgba(255,255,255,.74);
}
.hero-badges i{color:var(--green);}

/* ------------------------------ Boutons --------------------------------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:10px;
  padding:15px 28px;border:0;cursor:pointer;
  font-family:var(--font-body);font-size:15px;font-weight:600;
  border-radius:999px;transition:transform .2s ease, background .2s ease,
  box-shadow .2s ease, color .2s ease, border-color .2s ease;
}
.btn i{font-size:14px;}
.btn-primary{background:var(--green);color:#fff;box-shadow:0 12px 26px rgba(0,191,99,.34);}
.btn-primary:hover{background:var(--green-dark);transform:translateY(-2px);}
.btn-ghost{
  background:rgba(255,255,255,.10);color:#fff;
  border:1.5px solid rgba(255,255,255,.34);
}
.btn-ghost:hover{background:rgba(255,255,255,.20);transform:translateY(-2px);}
.btn-dark{background:var(--black);color:#fff;}
.btn-dark:hover{background:var(--green);transform:translateY(-2px);}
.btn-block{width:100%;}

/* ============================= BANDEAU ================================== */
.strip{background:var(--black);border-top:1px solid rgba(255,255,255,.09);}
.strip-grid{
  display:grid;grid-template-columns:repeat(4,1fr);
  gap:1px;background:rgba(255,255,255,.10);
}
.strip-item{
  background:var(--black);padding:34px 26px;text-align:center;
  transition:background .25s ease;
}
.strip-item:hover{background:#12181A;}
.strip-item i{font-size:26px;color:var(--green);margin-bottom:12px;display:block;}
.strip-item h3{
  font-size:1.02rem;font-weight:700;text-transform:uppercase;
  letter-spacing:.08em;color:#fff;margin:0 0 6px;
}
.strip-item p{font-size:13.5px;color:rgba(255,255,255,.60);margin:0;}

/* ============================= SECTIONS ================================= */
.section{padding:110px 0;}
.section-head{max-width:760px;margin-bottom:64px;}
.section-kicker{
  font-size:12.5px;font-weight:700;letter-spacing:.20em;text-transform:uppercase;
  color:var(--green-deep);margin:0 0 14px;
}
.section-kicker--light{color:var(--green);}
.section-title{
  font-size:clamp(1.95rem,4.2vw,3.05rem);
  font-weight:800;text-transform:uppercase;letter-spacing:-.005em;
  margin:0 0 18px;
}
.section-title::after{
  content:"";display:block;width:74px;height:5px;border-radius:3px;
  background:var(--green);margin-top:20px;
}
.section-sub{font-size:1.04rem;color:var(--grey);}
.lead{font-size:1.14rem;color:var(--ink);}
.check-list{margin:26px 0 32px;display:grid;gap:12px;}
.check-list li{display:flex;align-items:flex-start;gap:12px;font-size:15.5px;}
.check-list i{color:var(--green);margin-top:4px;}

/* ------------------------ Reveal (animation) --------------------------
   Le contenu reste VISIBLE par défaut : l'état masqué n'est appliqué que
   si JavaScript est actif (classe .js sur <html>), et les éléments sont
   révélés au défilement. Sans JS, rien ne peut rester invisible.        */
.js .reveal{opacity:0;transform:translateY(28px);transition:opacity .7s ease, transform .7s ease;}
.js .reveal.is-visible{opacity:1;transform:none;}

/* ============================== À PROPOS ================================ */
.about{background:var(--white);}
.about-grid{
  display:grid;grid-template-columns:1.05fr 1fr;
  gap:70px;align-items:center;
}
.about-media{display:grid;gap:22px;}
.media-frame{margin:0;border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);}
.media-frame img{width:100%;aspect-ratio:16/11;object-fit:cover;}
.media-frame--offset{margin-left:clamp(0px,6vw,54px);}
.media-frame--offset img{aspect-ratio:4/3;}

/* ============================== SERVICES ================================ */
.services{background:var(--grey-light);}
.service{
  display:grid;grid-template-columns:1fr 1.08fr;
  gap:56px;align-items:center;
  background:var(--white);border-radius:22px;
  padding:34px;box-shadow:var(--shadow);
}
.service + .service{margin-top:44px;}
.service--reverse .service-media{order:2;}
.service-media{position:relative;border-radius:var(--radius);overflow:hidden;}
.service-media img{
  width:100%;aspect-ratio:4/3;object-fit:cover;
  transition:transform .7s ease;
}
.service:hover .service-media img{transform:scale(1.05);}
.service-num{
  position:absolute;left:20px;bottom:20px;
  font-family:var(--font-display);font-size:1.5rem;font-weight:900;
  color:#fff;background:var(--green);
  padding:6px 18px;border-radius:999px;
  box-shadow:0 10px 24px rgba(0,191,99,.42);
}
.service-partner{
  display:inline-flex;align-items:center;gap:9px;
  font-size:12.5px;font-weight:700;letter-spacing:.10em;text-transform:uppercase;
  color:var(--green-deep);background:var(--green-soft);
  padding:8px 15px;border-radius:999px;margin:0 0 18px;
}
.service h3{
  font-size:clamp(1.45rem,2.8vw,2.05rem);
  font-weight:800;text-transform:uppercase;letter-spacing:-.004em;
}
.service-body > p{color:var(--grey);font-size:1.01rem;}
.service-list{display:grid;gap:0;margin-top:22px;border-top:1px solid var(--line);}
.service-list li{
  display:grid;grid-template-columns:auto 1fr;gap:16px;align-items:start;
  padding:13px 0;border-bottom:1px solid var(--line);
  font-size:15px;color:var(--ink);
}
.svc{
  font-family:var(--font-display);font-size:11.5px;font-weight:700;
  letter-spacing:.10em;text-transform:uppercase;
  color:var(--green-deep);background:var(--green-soft);
  padding:4px 11px;border-radius:6px;white-space:nowrap;
}

/* ============================ APPROCHE / GALERIE ======================== */
.gallery-section{background:var(--black);color:#fff;}
.gallery-section .section-title{color:#fff;}
.gallery-section .section-sub{color:rgba(255,255,255,.66);}
.gallery{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  grid-auto-rows:220px;
  gap:18px;
  margin-top:60px;
}
.g{position:relative;margin:0;border-radius:var(--radius);overflow:hidden;}
.g img{width:100%;height:100%;object-fit:cover;transition:transform .8s ease;}
.g:hover img{transform:scale(1.07);}
.g::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(0deg, rgba(6,8,10,.88) 0%, rgba(6,8,10,.10) 58%);
}
.g-1{grid-column:span 2;grid-row:span 2;}
.g-2{grid-column:span 2;}
.g-3{grid-column:span 1;}
.g-4{grid-column:span 1;}
.g figcaption{
  position:absolute;left:22px;bottom:20px;right:22px;z-index:2;
  font-size:14px;color:rgba(255,255,255,.84);
}
.g figcaption span{
  display:block;font-family:var(--font-display);
  font-size:11.5px;font-weight:700;letter-spacing:.16em;
  text-transform:uppercase;color:var(--green);margin-bottom:4px;
}

/* ============================ VISION & VALEURS ========================== */
.vision{background:var(--white);}
.vision-card{
  position:relative;overflow:hidden;
  background:linear-gradient(120deg,var(--black) 0%,#0E1A13 62%,var(--green-deep) 140%);
  color:#fff;border-radius:24px;padding:62px 58px;
  box-shadow:var(--shadow-lg);
}
.vision-card::before{
  content:"";position:absolute;right:-90px;top:-90px;
  width:340px;height:340px;border-radius:50%;
  border:1px solid rgba(0,191,99,.35);
}
.vision-card::after{
  content:"";position:absolute;right:-20px;bottom:-140px;
  width:260px;height:260px;border-radius:50%;
  background:rgba(0,191,99,.14);filter:blur(10px);
}
.vision-card h2{
  position:relative;z-index:2;
  font-size:clamp(1.4rem,3.1vw,2.25rem);
  font-weight:800;text-transform:none;color:#fff;
  max-width:940px;margin-bottom:22px;
}
.vision-card h2::after{
  content:"";display:block;width:74px;height:5px;border-radius:3px;
  background:var(--green);margin-top:24px;
}
.vision-card p{position:relative;z-index:2;color:rgba(255,255,255,.82);max-width:780px;margin:0;}
.vision-card strong{color:var(--green);}

.values-title{
  font-size:clamp(1.7rem,3.6vw,2.5rem);font-weight:800;
  text-transform:uppercase;margin:88px 0 40px;
}
.values-title::after{
  content:"";display:block;width:74px;height:5px;border-radius:3px;
  background:var(--green);margin-top:18px;
}
.values-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px;}
.value-card{
  background:var(--grey-light);border-radius:var(--radius);
  padding:32px 26px;border-bottom:4px solid transparent;
  transition:transform .3s ease, border-color .3s ease, background .3s ease,
  box-shadow .3s ease;
}
.value-card:hover{
  transform:translateY(-6px);border-color:var(--green);
  background:#fff;box-shadow:var(--shadow);
}
.value-icon{
  display:inline-flex;align-items:center;justify-content:center;
  width:52px;height:52px;border-radius:14px;
  background:var(--black);color:var(--green);font-size:20px;
  margin-bottom:18px;
}
.value-card h4{
  font-size:1.05rem;font-weight:700;text-transform:uppercase;
  letter-spacing:.06em;margin:0 0 8px;
}
.value-card p{font-size:14.5px;color:var(--grey);margin:0;}

/* ===================== PARTENARIAT AIR CONGO =========================== */
.airline{background:var(--white);}
.airline-grid{display:grid;grid-template-columns:1fr 1.02fr;gap:64px;align-items:center;}
.airline .section-title span{color:var(--green);}
.airline-media{display:grid;gap:20px;}
.aircraft{
  position:relative;margin:0;border-radius:var(--radius);overflow:hidden;
  box-shadow:var(--shadow);
}
.aircraft img{
  width:100%;aspect-ratio:16/10;object-fit:cover;
  transition:transform .8s ease;
}
.aircraft:hover img{transform:scale(1.05);}
.aircraft::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(0deg, rgba(6,8,10,.86) 0%, rgba(6,8,10,.04) 62%);
}
.aircraft figcaption{
  position:absolute;left:20px;bottom:16px;right:20px;z-index:2;
  font-size:13.5px;color:rgba(255,255,255,.88);
}
.aircraft figcaption span{
  display:block;font-family:var(--font-display);
  font-size:11.5px;font-weight:700;letter-spacing:.16em;
  text-transform:uppercase;color:var(--green);margin-bottom:3px;
}

/* Galerie de photos Air Congo */
.airline-gallery{
  display:grid;grid-template-columns:repeat(5,1fr);
  gap:16px;margin-top:48px;
}
.airline-gallery figure{
  position:relative;margin:0;border-radius:14px;overflow:hidden;
  box-shadow:var(--shadow);
}
.airline-gallery img{
  width:100%;aspect-ratio:4/3;object-fit:cover;
  transition:transform .8s ease;
}
.airline-gallery figure:hover img{transform:scale(1.06);}
.airline-gallery figure::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(0deg, rgba(6,8,10,.86) 0%, rgba(6,8,10,.05) 64%);
}
.airline-gallery figcaption{
  position:absolute;left:15px;right:15px;bottom:13px;z-index:2;
  font-size:12.5px;line-height:1.35;color:rgba(255,255,255,.88);
}
.airline-gallery figcaption span{
  display:block;font-family:var(--font-display);
  font-size:10.5px;font-weight:700;letter-spacing:.14em;
  text-transform:uppercase;color:var(--green);margin-bottom:2px;
}

/* ============================== CONTACT ================================= */
.contact{
  position:relative;
  background:linear-gradient(160deg,#0A0A0A 0%,#0C1512 55%,#0A0A0A 100%);
  color:#fff;
}
.contact::before{
  content:"";position:absolute;left:-140px;bottom:-140px;
  width:420px;height:420px;border-radius:50%;
  background:radial-gradient(circle, rgba(0,191,99,.24), transparent 68%);
}
.contact-grid{
  position:relative;z-index:2;
  display:grid;grid-template-columns:1fr 1.02fr;gap:66px;align-items:start;
}
.contact-title{
  font-size:clamp(2rem,4.4vw,3.1rem);font-weight:900;
  text-transform:uppercase;color:#fff;
}
.contact-title span{color:var(--green);}
.contact-intro{color:rgba(255,255,255,.74);max-width:470px;}
.contact-list{display:grid;gap:14px;margin-top:34px;}
.contact-list li a,
.contact-list li > span{
  display:flex;align-items:center;gap:16px;
  padding:16px 18px;border-radius:14px;
  background:rgba(255,255,255,.05);
  border:1px solid rgba(255,255,255,.10);
  transition:background .25s ease, border-color .25s ease, transform .25s ease;
}
.contact-list li a:hover{
  background:rgba(0,191,99,.12);border-color:rgba(0,191,99,.5);
  transform:translateX(4px);
}
.ci{
  flex:none;width:44px;height:44px;border-radius:50%;
  display:inline-flex;align-items:center;justify-content:center;
  background:var(--green);color:#fff;font-size:16px;
}
.ct{display:flex;flex-direction:column;font-size:15.5px;font-weight:600;color:#fff;}
.ct small{
  font-size:11.5px;font-weight:600;letter-spacing:.14em;
  text-transform:uppercase;color:rgba(255,255,255,.55);
}

/* ------------------------------ Formulaire ------------------------------ */
.contact-form{
  background:#fff;color:var(--ink);
  border-radius:22px;padding:38px;
  box-shadow:var(--shadow-lg);
}
.contact-form h3{
  font-size:1.3rem;font-weight:800;text-transform:uppercase;margin-bottom:24px;
}
.contact-form h3::after{
  content:"";display:block;width:56px;height:4px;border-radius:2px;
  background:var(--green);margin-top:12px;
}
.field{margin-bottom:18px;}
.field-row{display:grid;grid-template-columns:1fr 1fr;gap:16px;}
.field label{
  display:block;font-size:13px;font-weight:600;color:var(--ink);
  margin-bottom:7px;letter-spacing:.02em;
}
.field label span{color:var(--green-deep);}
.field input,.field select,.field textarea{
  width:100%;padding:14px 16px;
  border:1.5px solid var(--line);border-radius:var(--radius-sm);
  background:#FAFBFC;font-size:15px;
  transition:border-color .2s ease, background .2s ease, box-shadow .2s ease;
}
.field textarea{resize:vertical;min-height:110px;}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--green);background:#fff;
  box-shadow:0 0 0 4px rgba(0,191,99,.14);
}
.field input.invalid,.field select.invalid,.field textarea.invalid{
  border-color:#E0483C;background:#FEF5F4;
}
.field-error{display:block;font-size:12.5px;color:#E0483C;margin-top:6px;min-height:1em;}
.form-status{
  margin:16px 0 0;font-size:14px;font-weight:600;min-height:1.2em;
  display:flex;align-items:center;gap:9px;
}
.form-status.ok{color:var(--green-deep);}
.form-status.err{color:#E0483C;}
.form-note{
  margin:12px 0 0;font-size:12.5px;color:var(--grey);
  display:flex;align-items:center;gap:8px;
}
.form-note i{color:var(--green);}
.btn[disabled]{opacity:.65;cursor:progress;transform:none;}

/* ============================== FOOTER ================================== */
.site-footer{background:#070807;color:rgba(255,255,255,.70);padding:76px 0 0;}
.footer-inner{
  display:grid;grid-template-columns:1.5fr 1fr 1.2fr;
  gap:48px;padding-bottom:52px;
}
.footer-brand p{font-size:14.5px;max-width:400px;margin-top:18px;}
.footer-nav h4,.footer-contact h4{
  font-size:12.5px;font-weight:700;letter-spacing:.18em;text-transform:uppercase;
  color:var(--green);margin-bottom:18px;
}
.footer-nav li{margin-bottom:10px;}
.footer-nav a{font-size:14.5px;transition:color .2s ease;}
.footer-nav a:hover{color:var(--green);}
.footer-contact li{
  display:flex;align-items:flex-start;gap:11px;
  font-size:14.5px;margin-bottom:12px;
}
.footer-contact i{color:var(--green);margin-top:5px;}
.footer-contact a:hover{color:var(--green);}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.10);
  padding-top:26px;padding-bottom:30px;
  display:flex;flex-wrap:wrap;gap:12px;
  justify-content:space-between;align-items:center;
  font-size:13.5px;
}
.footer-bottom p{margin:0;}
.footer-partner{
  display:inline-flex;align-items:center;gap:10px;
  background:rgba(0,191,99,.12);
  border:1px solid rgba(0,191,99,.35);
  color:rgba(255,255,255,.86);
  padding:9px 16px;border-radius:999px;font-size:13px;
}
.footer-partner i{color:var(--green);}
.footer-partner strong{color:var(--green);}

/* ------------------------------ To top --------------------------------- */
.to-top{
  position:fixed;right:22px;bottom:22px;z-index:90;
  width:48px;height:48px;border-radius:50%;
  display:inline-flex;align-items:center;justify-content:center;
  background:var(--green);color:#fff;
  box-shadow:0 12px 28px rgba(0,191,99,.42);
  opacity:0;visibility:hidden;transform:translateY(14px);
  transition:opacity .3s ease, transform .3s ease, visibility .3s ease;
}
.to-top.show{opacity:1;visibility:visible;transform:none;}
.to-top:hover{background:var(--green-dark);}

/* ============================== RESPONSIVE ============================== */
@media (max-width:1080px){
  .section{padding:88px 0;}
  .about-grid{gap:46px;}
  .service{gap:38px;padding:28px;}
  .values-grid{grid-template-columns:repeat(2,1fr);}
  .airline-gallery{grid-template-columns:repeat(3,1fr);}
  .footer-inner{grid-template-columns:1fr 1fr;gap:40px;}
}

@media (max-width:900px){
  :root{--header-h:74px;}

  /* Navigation mobile */
  .nav-toggle{display:block;}
  .primary-nav{
    position:fixed;top:var(--header-h);left:0;right:0;
    background:rgba(8,9,8,.98);
    backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
    border-top:1px solid rgba(255,255,255,.10);
    max-height:0;overflow:hidden;
    transition:max-height .38s ease;
  }
  .primary-nav.open{max-height:560px;overflow-y:auto;}
  .primary-nav ul{flex-direction:column;align-items:stretch;gap:0;padding:14px 24px 26px;}
  .primary-nav a{
    border-radius:12px;padding:14px 16px;font-size:16px;
    border-bottom:1px solid rgba(255,255,255,.07);
  }
  .primary-nav .nav-cta{margin-top:14px;text-align:center;border-bottom:0;}

  .about-grid{grid-template-columns:1fr;}
  .airline-grid{grid-template-columns:1fr;gap:40px;}
  .airline-media{order:2;}
  .airline-gallery{grid-template-columns:repeat(2,1fr);}
  .about-media{order:2;}
  .media-frame--offset{margin-left:0;}

  .service{grid-template-columns:1fr;padding:24px;}
  .service--reverse .service-media{order:0;}
  .service-media img{aspect-ratio:16/10;}

  .gallery{grid-template-columns:repeat(2,1fr);grid-auto-rows:190px;}
  .g-1{grid-column:span 2;grid-row:span 2;}
  .g-2{grid-column:span 2;}

  .vision-card{padding:44px 32px;}
  .contact-grid{grid-template-columns:1fr;gap:46px;}
  .contact-form{padding:28px;}
}

@media (max-width:620px){
  .container{padding:0 18px;}
  .section{padding:68px 0;}
  .section-head{margin-bottom:44px;}

  .brand{padding:7px 12px;border-radius:10px;}
  .brand-logo{height:34px;}
  .brand--footer .brand-logo{height:38px;}

  .hero{min-height:auto;padding:calc(var(--header-h) + 56px) 0 64px;}
  .hero-tag{letter-spacing:.20em;}
  .hero-actions{flex-direction:column;align-items:stretch;}
  .hero-actions .btn{width:100%;}
  .hero-badges{flex-direction:column;gap:12px;}

  .strip-grid{grid-template-columns:1fr 1fr;}
  .strip-item{padding:26px 16px;}

  .values-grid{grid-template-columns:1fr;}
  .values-title{margin-top:64px;}

  .gallery{grid-template-columns:1fr;grid-auto-rows:230px;}
  .g-1,.g-2,.g-3,.g-4{grid-column:span 1;grid-row:span 1;}
  .airline-gallery{grid-template-columns:1fr;gap:14px;}

  .field-row{grid-template-columns:1fr;gap:0;}
  .contact-form{padding:24px 20px;}

  .footer-inner{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .to-top{right:16px;bottom:16px;width:44px;height:44px;}
}

@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto;}
  *,*::before,*::after{animation-duration:.001ms !important;transition-duration:.001ms !important;}
  .js .reveal{opacity:1;transform:none;}
}