:root{--black:#0a0a0a;--dark:#111416;--card:#161b20;--border:#1e2830;--gold:#c8a04a;--gold-light:#e6c47a;--white:#f4f1eb;--muted:#7a8694;--blue:#1a3a5c;--blue-light:#2a5580;}
*{margin:0;padding:0;box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{background:var(--dark);color:var(--white);font-family:'Mulish',sans-serif;font-weight:300;line-height:1.7;overflow-x:hidden;}

/* NAV */
nav{position:fixed;top:0;left:0;right:0;z-index:100;display:flex;align-items:center;justify-content:space-between;padding:16px 60px;background:rgba(10,10,10,0.94);backdrop-filter:blur(14px);border-bottom:1px solid var(--border);}
.nav-logo{display:flex;align-items:center;gap:10px;font-family:'Playfair Display',serif;font-size:1.2rem;letter-spacing:0.04em;color:var(--gold);text-decoration:none;}
.nav-logo span{color:var(--white);}
/* Место для логотипа компании. Ожидаемый файл: /assets/logo.png (рекомендуется прозрачный PNG/SVG, высота ~40px) */
.logo-img{height:38px;width:auto;display:block;}
.logo-fallback{display:flex;flex-direction:column;line-height:1.05;}
.nav-left{display:flex;align-items:center;gap:36px;}
.nav-links{display:flex;gap:28px;list-style:none;}
.nav-links a{color:var(--muted);text-decoration:none;font-size:0.78rem;font-weight:600;letter-spacing:0.1em;text-transform:uppercase;transition:color 0.3s;}
.nav-links a:hover{color:var(--gold);}
.nav-right{display:flex;align-items:center;gap:14px;}
.lang-switch{display:flex;gap:6px;}
.lang-btn{padding:5px 11px;background:transparent;border:1px solid var(--border);color:var(--muted);font-family:'Mulish',sans-serif;font-size:0.7rem;font-weight:700;letter-spacing:0.1em;text-transform:uppercase;cursor:pointer;text-decoration:none;border-radius:2px;transition:all 0.3s;}
.lang-btn:hover,.lang-btn.active{border-color:var(--gold);color:var(--gold);}
.btn{display:inline-block;padding:10px 26px;font-family:'Mulish',sans-serif;font-size:0.76rem;font-weight:700;letter-spacing:0.12em;text-transform:uppercase;text-decoration:none;border-radius:2px;transition:all 0.3s;cursor:pointer;border:none;}
.btn-primary{background:var(--gold);color:var(--black);border:1px solid var(--gold);}
.btn-primary:hover{background:var(--gold-light);transform:translateY(-2px);box-shadow:0 10px 36px rgba(200,160,74,0.3);}
.btn-outline{background:transparent;color:var(--white);border:1px solid var(--border);}
.btn-outline:hover{border-color:var(--gold);color:var(--gold);transform:translateY(-2px);}
.btn-blue{background:var(--blue-light);color:var(--white);border:1px solid var(--blue-light);}
.btn-blue:hover{background:#336699;transform:translateY(-2px);}

/* HERO */
.hero{min-height:100vh;display:grid;place-items:center;position:relative;overflow:hidden;padding:120px 60px 80px;}
.hero-bg{position:absolute;inset:0;background:radial-gradient(ellipse 80% 60% at 70% 50%,rgba(200,160,74,0.07) 0%,transparent 70%),radial-gradient(ellipse 50% 70% at 5% 85%,rgba(26,58,92,0.35) 0%,transparent 60%),linear-gradient(160deg,#080b0e 0%,#111416 50%,#0a0f14 100%);}
.hero-grid{position:absolute;inset:0;background-image:linear-gradient(rgba(200,160,74,0.035) 1px,transparent 1px),linear-gradient(90deg,rgba(200,160,74,0.035) 1px,transparent 1px);background-size:80px 80px;animation:gridDrift 22s linear infinite;}
@keyframes gridDrift{0%{transform:translateY(0)}100%{transform:translateY(80px)}}
.hero-content{position:relative;text-align:center;max-width:900px;}
.hero-eyebrow{font-size:0.72rem;font-weight:700;letter-spacing:0.28em;text-transform:uppercase;color:var(--gold);margin-bottom:22px;animation:fadeUp 1s 0.1s ease both;}
@keyframes fadeUp{from{opacity:0;transform:translateY(36px)}to{opacity:1;transform:translateY(0)}}
.hero h1{font-family:'Playfair Display',serif;font-size:clamp(2.5rem,5.2vw,4.4rem);font-weight:700;line-height:1.14;margin-bottom:24px;animation:fadeUp 1s 0.25s ease both;}
.hero h1 em{font-style:normal;color:var(--gold);}
.hero-sub{font-size:1rem;color:var(--muted);max-width:600px;margin:0 auto 40px;font-weight:400;animation:fadeUp 1s 0.4s ease both;}
.hero-cta{display:inline-flex;gap:12px;flex-wrap:wrap;justify-content:center;animation:fadeUp 1s 0.55s ease both;}
.hero-phone{animation:fadeUp 1s 0.7s ease both;margin-top:28px;}
.hero-phone a{color:var(--gold);font-size:1.25rem;font-weight:700;text-decoration:none;letter-spacing:0.04em;}
.hero-phone a:hover{color:var(--gold-light);}
.hero-badges{display:flex;justify-content:center;gap:20px;margin-top:36px;flex-wrap:wrap;animation:fadeUp 1s 0.85s ease both;}
.hero-badge{display:flex;align-items:center;gap:8px;padding:8px 18px;background:rgba(255,255,255,0.04);border:1px solid var(--border);border-radius:2px;font-size:0.75rem;font-weight:600;color:var(--muted);letter-spacing:0.06em;}
.hero-badge span{color:var(--gold);}
.scroll-hint{position:absolute;bottom:32px;left:50%;transform:translateX(-50%);display:flex;flex-direction:column;align-items:center;gap:7px;color:var(--muted);font-size:0.66rem;letter-spacing:0.2em;text-transform:uppercase;animation:fadeUp 1s 1.1s ease both;}
.scroll-line{width:1px;height:32px;background:linear-gradient(to bottom,var(--gold),transparent);animation:sp 2s ease-in-out infinite;}
@keyframes sp{0%,100%{opacity:0.3}50%{opacity:1}}

/* SECTION BASE */
section{padding:90px 60px;max-width:1200px;margin:0 auto;}
.section-label{font-size:0.68rem;font-weight:700;letter-spacing:0.28em;text-transform:uppercase;color:var(--gold);margin-bottom:12px;}
.section-title{font-family:'Playfair Display',serif;font-size:clamp(1.85rem,3.6vw,2.8rem);font-weight:700;line-height:1.2;margin-bottom:16px;}
.divider{width:40px;height:2px;background:var(--gold);margin-bottom:32px;}

/* AVIATION SECTION */
.aviation-section{background:linear-gradient(180deg,#0a0f14 0%,var(--dark) 100%);max-width:100%;padding:90px 0;}
.aviation-inner{max-width:1200px;margin:0 auto;padding:0 60px;}

.avi-intro{display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:center;margin-bottom:64px;}
.avi-intro-text p{color:#9daab6;font-size:0.97rem;margin-bottom:16px;}
.avi-intro-certs{display:flex;flex-direction:column;gap:3px;}
.cert-row{display:flex;align-items:center;gap:14px;padding:16px 22px;background:var(--card);border:1px solid var(--border);}
.cert-icon{font-size:1.4rem;flex-shrink:0;}
.cert-text{font-size:0.86rem;color:var(--white);font-weight:600;}
.cert-sub{font-size:0.76rem;color:var(--muted);margin-top:2px;}

/* Fuel types */
.fuel-types{display:grid;grid-template-columns:1fr 1fr;gap:3px;margin-bottom:3px;}
.fuel-card{background:var(--card);border:1px solid var(--border);padding:36px 32px;position:relative;overflow:hidden;transition:all 0.4s;}
.fuel-card::before{content:'';position:absolute;top:0;left:0;right:0;height:3px;background:linear-gradient(90deg,var(--gold),transparent);transform:scaleX(0);transform-origin:left;transition:transform 0.5s ease;}
.fuel-card:hover::before{transform:scaleX(1);}
.fuel-card:hover{border-color:rgba(200,160,74,0.3);background:#1a2028;}
.fuel-grade{font-family:'Playfair Display',serif;font-size:2rem;font-weight:700;color:var(--gold);margin-bottom:6px;}
.fuel-name{font-size:1rem;font-weight:700;margin-bottom:12px;color:var(--white);}
.fuel-desc{font-size:0.85rem;color:var(--muted);line-height:1.7;margin-bottom:16px;}
.fuel-specs{display:flex;flex-direction:column;gap:6px;}
.spec-row{display:flex;justify-content:space-between;align-items:center;padding:8px 0;border-bottom:1px solid rgba(255,255,255,0.05);font-size:0.8rem;}
.spec-label{color:var(--muted);}
.spec-val{color:var(--white);font-weight:600;}

/* Airport cards */
.airports-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:3px;margin-top:48px;}
.airport-card{background:var(--card);border:1px solid var(--border);padding:28px 20px;text-align:center;position:relative;overflow:hidden;transition:all 0.4s;cursor:default;}
.airport-card::after{content:'';position:absolute;bottom:0;left:0;right:0;height:2px;background:linear-gradient(90deg,transparent,var(--gold),transparent);transform:scaleX(0);transition:transform 0.5s;}
.airport-card:hover::after{transform:scaleX(1);}
.airport-card:hover{background:#1a2028;border-color:rgba(200,160,74,0.25);transform:translateY(-3px);}
.airport-icon{font-size:2rem;margin-bottom:12px;display:block;}
.airport-iata{font-family:'Playfair Display',serif;font-size:1.6rem;font-weight:700;color:var(--gold);margin-bottom:4px;}
.airport-city{font-size:0.88rem;font-weight:700;color:var(--white);margin-bottom:6px;}
.airport-name{font-size:0.74rem;color:var(--muted);line-height:1.5;}
.airport-badge{display:inline-block;margin-top:12px;padding:3px 10px;background:rgba(200,160,74,0.1);border:1px solid rgba(200,160,74,0.2);border-radius:2px;font-size:0.66rem;font-weight:700;letter-spacing:0.1em;text-transform:uppercase;color:var(--gold);}

/* Ground services */
.ground-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:3px;margin-top:48px;}
.ground-card{background:var(--card);border:1px solid var(--border);padding:32px 28px;transition:all 0.3s;}
.ground-card:hover{border-color:rgba(200,160,74,0.25);background:#1a2028;}
.ground-icon{font-size:1.8rem;margin-bottom:14px;display:block;}
.ground-title{font-size:1rem;font-weight:700;margin-bottom:8px;color:var(--white);}
.ground-desc{font-size:0.84rem;color:var(--muted);line-height:1.7;}

/* Why us */
.why-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:3px;margin-top:48px;}
.why-card{background:var(--card);border:1px solid var(--border);padding:32px 24px;text-align:center;position:relative;overflow:hidden;transition:border-color 0.3s;}
.why-card::before{content:'';position:absolute;top:0;left:0;width:3px;height:100%;background:var(--gold);transform:scaleY(0);transition:transform 0.4s;transform-origin:bottom;}
.why-card:hover::before{transform:scaleY(1);}
.why-card:hover{border-color:rgba(200,160,74,0.3);}
.why-num{font-family:'Playfair Display',serif;font-size:2.2rem;font-weight:700;color:var(--gold);line-height:1;margin-bottom:10px;}
.why-title{font-size:0.85rem;font-weight:700;color:var(--white);margin-bottom:8px;text-transform:uppercase;letter-spacing:0.06em;}
.why-desc{font-size:0.8rem;color:var(--muted);line-height:1.65;}

/* ABOUT */
.about-grid{display:grid;grid-template-columns:1fr 1fr;gap:72px;align-items:center;}
.about-text p{color:#9daab6;font-size:0.97rem;margin-bottom:16px;}
.about-stats{display:grid;grid-template-columns:1fr 1fr;gap:2px;}
.stat-box{background:var(--card);border:1px solid var(--border);padding:30px 24px;position:relative;overflow:hidden;transition:border-color 0.3s;}
.stat-box::before{content:'';position:absolute;top:0;left:0;width:3px;height:100%;background:var(--gold);transform:scaleY(0);transition:transform 0.4s;transform-origin:bottom;}
.stat-box:hover::before{transform:scaleY(1);}
.stat-box:hover{border-color:rgba(200,160,74,0.3);}
.stat-num{font-family:'Playfair Display',serif;font-size:2.3rem;font-weight:700;color:var(--gold);line-height:1;margin-bottom:7px;}
.stat-label{font-size:0.73rem;color:var(--muted);font-weight:600;letter-spacing:0.06em;text-transform:uppercase;}

/* PRODUCTS */
.products-section{background:var(--black);max-width:100%;padding:90px 0;}
.products-inner{max-width:1200px;margin:0 auto;padding:0 60px;}
.products-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:2px;margin-top:48px;}
.product-card{background:var(--card);border:1px solid var(--border);padding:36px 30px;position:relative;overflow:hidden;transition:all 0.4s;}
.product-card::after{content:'';position:absolute;bottom:0;left:0;right:0;height:2px;background:linear-gradient(90deg,transparent,var(--gold),transparent);transform:scaleX(0);transition:transform 0.5s;}
.product-card:hover{background:#1a2028;border-color:rgba(200,160,74,0.25);transform:translateY(-4px);}
.product-card:hover::after{transform:scaleX(1);}
.product-icon{font-size:1.8rem;margin-bottom:16px;display:block;}
.product-name{font-family:'Playfair Display',serif;font-size:1.2rem;font-weight:700;margin-bottom:8px;}
.product-desc{font-size:0.84rem;color:var(--muted);line-height:1.7;}
.product-tag{display:inline-block;margin-top:16px;padding:4px 11px;background:rgba(200,160,74,0.1);border:1px solid rgba(200,160,74,0.25);border-radius:2px;font-size:0.68rem;font-weight:700;letter-spacing:0.1em;text-transform:uppercase;color:var(--gold);}
.refineries{margin-top:48px;padding:26px 32px;background:var(--card);border:1px solid var(--border);border-left:3px solid var(--gold);display:flex;align-items:center;gap:32px;flex-wrap:wrap;}
.ref-label{font-size:0.68rem;font-weight:700;letter-spacing:0.22em;text-transform:uppercase;color:var(--gold);white-space:nowrap;}
.ref-list{display:flex;gap:24px;flex-wrap:wrap;}
.ref-item{font-size:0.84rem;font-weight:700;color:var(--muted);letter-spacing:0.06em;transition:color 0.3s;}
.ref-item:hover{color:var(--gold);}
.ref-sep{color:var(--border);}

/* CONTACT */
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:72px;align-items:start;}
.contact-info-block{display:flex;flex-direction:column;gap:3px;}
.contact-item{display:flex;gap:16px;align-items:flex-start;padding:20px;background:var(--card);border:1px solid var(--border);transition:border-color 0.3s;}
.contact-item:hover{border-color:rgba(200,160,74,0.35);}
.contact-icon{font-size:1.25rem;flex-shrink:0;margin-top:2px;}
.contact-detail-label{font-size:0.66rem;font-weight:700;letter-spacing:0.2em;text-transform:uppercase;color:var(--gold);margin-bottom:4px;}
.contact-detail-value{font-size:0.91rem;color:var(--white);}
.contact-detail-value a{color:var(--white);text-decoration:none;transition:color 0.3s;}
.contact-detail-value a:hover{color:var(--gold);}
.contact-form{display:flex;flex-direction:column;gap:13px;}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:13px;}
.form-group{display:flex;flex-direction:column;gap:6px;}
.form-group label{font-size:0.68rem;font-weight:700;letter-spacing:0.14em;text-transform:uppercase;color:var(--muted);}
.form-group input,.form-group textarea,.form-group select{background:var(--card);border:1px solid var(--border);color:var(--white);font-family:'Mulish',sans-serif;font-size:0.87rem;padding:12px 15px;border-radius:2px;outline:none;transition:border-color 0.3s;appearance:none;}
.form-group input:focus,.form-group textarea:focus,.form-group select:focus{border-color:var(--gold);}
.form-group textarea{resize:vertical;min-height:100px;}
.form-group select option{background:var(--card);}

/* FOOTER */
footer{background:var(--black);border-top:1px solid var(--border);padding:36px 60px;display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:14px;}
.footer-logo{display:flex;align-items:center;gap:8px;font-family:'Playfair Display',serif;font-size:1.05rem;color:var(--gold);}
.footer-logo span{color:var(--white);}
.footer-logo .logo-img{height:26px;}
.footer-copy{font-size:0.74rem;color:var(--muted);}
.footer-links{display:flex;gap:22px;}
.footer-links a{font-size:0.74rem;color:var(--muted);text-decoration:none;transition:color 0.3s;}
.footer-links a:hover{color:var(--gold);}

/* REVEAL */
.reveal{opacity:0;transform:translateY(26px);transition:opacity 0.8s ease,transform 0.8s ease;}
.reveal.visible{opacity:1;transform:translateY(0);}
.reveal-delay-1{transition-delay:0.1s;}.reveal-delay-2{transition-delay:0.2s;}.reveal-delay-3{transition-delay:0.3s;}.reveal-delay-4{transition-delay:0.4s;}.reveal-delay-5{transition-delay:0.5s;}

/* RESPONSIVE */
@media(max-width:1024px){.airports-grid{grid-template-columns:repeat(3,1fr);}.why-grid{grid-template-columns:1fr 1fr;}}
@media(max-width:900px){
  nav{padding:14px 18px;}.nav-links{display:none;}
  .hero{padding:96px 18px 72px;}
  section{padding:60px 18px;}
  .aviation-inner,.products-inner{padding:0 18px;}
  footer{padding:28px 18px;}
  .about-grid,.contact-grid,.avi-intro,.fuel-types{grid-template-columns:1fr;gap:28px;}
  .products-grid,.ground-grid{grid-template-columns:1fr;}
  .airports-grid{grid-template-columns:1fr 1fr;}
  .why-grid{grid-template-columns:1fr 1fr;}
  .about-stats{grid-template-columns:1fr 1fr;}
  .refineries{padding:18px;gap:12px;}
  .hero-badges{gap:10px;}
}