:root{
  --nav-bg: rgba(3,37,65,0.96);
  --accent: #00b4d8;
  --accent2: #0077b6;
  --muted: #6b7280;
  --maxw: 1100px;
  --container-padding: 24px;
  --radius: 12px;
}
*{box-sizing:border-box}
body{font-family:'Inter',system-ui,Arial;line-height:1.5;color:#0b1220;margin:0;background:#f8fafc;}
.container{max-width:var(--maxw);margin:0 auto;padding:0 var(--container-padding);}

/* Header */
.site-header{position:fixed;top:0;left:0;width:100%;z-index:50;background:linear-gradient(180deg, rgba(3,25,46,0.9), rgba(3,25,46,0.3));backdrop-filter:blur(6px);}
.header-inner{display:flex;align-items:center;justify-content:space-between;padding:14px 0;}
.brand{display:flex;gap:12px;align-items:center}
.brand .company{font-weight:700;letter-spacing:1px;color:#e6f2fb}
.brand .tag{font-size:12px;color:#9fb3c8}
.logo{display:block;border-radius:8px}
.nav{display:flex;gap:18px;align-items:center}
.nav a{color:#e6f2fb;text-decoration:none;padding:8px 10px;border-radius:8px;font-weight:600;font-size:14px;opacity:0.95}
.nav a.btn-contact{background:linear-gradient(90deg,var(--accent),var(--accent2));padding:9px 14px;color:white}
.burger{display:none;background:none;border:0;color:#e6f2fb;font-size:20px}

/* Hero */
.hero{padding-top:96px;padding-bottom:40px;background:linear-gradient(180deg,#003049 0%, #005f73 60%);color:white;position:relative;overflow:hidden}
.hero-inner{display:grid;grid-template-columns:1fr 420px;gap:28px;align-items:center;padding:64px 0}
.hero h1{font-size:28px;margin:0 0 12px;line-height:1.05}
.lead{opacity:0.95;margin:0 0 18px}
.hero-ctas{display:flex;gap:12px;margin-bottom:18px}
.primary{background:linear-gradient(90deg,var(--accent),var(--accent2));padding:12px 18px;color:#012;display:inline-block;border-radius:10px;text-decoration:none;font-weight:700}
.ghost{background:transparent;border:1px solid rgba(255,255,255,0.2);padding:10px 16px;color:#fff;border-radius:10px;text-decoration:none}
.keyfacts{display:flex;gap:18px;list-style:none;padding:0;margin:18px 0 0}
.keyfacts li{font-size:13px;opacity:0.95}

.mock-card{background:linear-gradient(180deg,#071427,#022038);padding:18px;border-radius:14px;box-shadow:0 10px 30px rgba(2,10,23,0.5)}
.hero-photo{width:100%;height:auto;border-radius:10px;display:block}

/* Sections */
.section{padding:64px 0;background:transparent}
.section.alt{background:#f8fafc}
.section-title{font-size:22px;margin:0 0 6px}
.section-sub{color:var(--muted);margin:0 0 24px}

/* Cards */
.cards{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}
.card{background:white;padding:18px;border-radius:12px;box-shadow:0 6px 18px rgba(2,10,23,0.06)}
.card .icon{font-size:26px;margin-bottom:8px}
.card h3{margin:0 0 8px}

/* About */
.about-grid{display:grid;grid-template-columns:1fr 320px;gap:24px;align-items:start}
.about-list{list-style:none;padding:0;margin:0}
.about-list li{padding:8px 0;border-bottom:1px dashed #e6eef6;color:var(--muted)}

/* Projects */
.project-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.project{background:white;padding:16px;border-radius:10px;box-shadow:0 6px 14px rgba(2,10,23,0.04)}

/* Figures */
figure{margin:18px 0}
figure img{width:100%;height:auto;border-radius:12px;box-shadow:0 8px 24px rgba(2,10,23,0.15)}
figure figcaption{font-size:13px;color:var(--muted);margin-top:6px}

/* Contact */
.contact-grid{display:grid;grid-template-columns:380px 1fr;gap:20px;align-items:start}
.contact-card{background:linear-gradient(180deg,#ffffff,#f1f8fc);padding:18px;border-radius:12px}
.contact-form{background:white;padding:18px;border-radius:12px;box-shadow:0 8px 26px rgba(2,10,23,0.04)}
.contact-form label{display:block;margin-bottom:12px;font-size:13px}
.contact-form input,.contact-form textarea{width:100%;padding:10px;border:1px solid #e6eef6;border-radius:8px;font-size:14px}
.form-actions{display:flex;gap:12px;align-items:center;margin-top:8px}
.note{font-size:12px;color:var(--muted);margin-top:8px}

/* Footer */
.site-footer{padding:20px 0;background:#031021;color:#9fb3c8;margin-top:20px}
.small-center{text-align:center;color:var(--muted);font-size:13px}

/* Responsive */
@media (max-width:980px){
  .hero-inner{grid-template-columns:1fr; padding:48px 0}
  .cards{grid-template-columns:1fr}
  .project-grid{grid-template-columns:1fr}
  .about-grid{grid-template-columns:1fr}
  .contact-grid{grid-template-columns:1fr}
  .nav{display:none}
  .burger{display:block}
  body.menu-open .nav{display:flex;position:fixed;inset:64px 16px auto 16px;flex-direction:column;background:linear-gradient(180deg,var(--nav-bg),rgba(3,37,65,0.98));padding:18px;border-radius:12px;box-shadow:0 8px 40px rgba(0,0,0,0.4)}
}