:root{
  --bg:#0b0d12;
  --panel:#111522;
  --text:#e9eef8;
  --muted:#a8b3c7;
  --line:#202a40;
  --accent:#3b82f6; /* blue */
}

*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{
  font-family: system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
  background:var(--bg);
  color:var(--text);
  line-height:1.55;
}

a{color:inherit;text-decoration:none}
a:hover{color:var(--accent)}
.container{max-width:1100px;margin:0 auto;padding:0 18px}

.header{
  position:sticky;top:0;
  background:rgba(11,13,18,.85);
  backdrop-filter: blur(10px);
  border-bottom:1px solid var(--line);
}
.header__inner{height:64px;display:flex;align-items:center;justify-content:space-between;gap:16px}
.logo{font-weight:800;letter-spacing:.3px}
.nav{display:flex;gap:14px;flex-wrap:wrap}
.nav a{color:var(--muted)}
.nav a:hover{color:var(--text)}
.lang{display:flex;gap:10px;align-items:center}
.lang__active{font-weight:800}

.hero{padding:64px 0;border-bottom:1px solid var(--line)}
.hero__inner{display:grid;grid-template-columns:1.25fr .75fr;gap:22px}
@media (max-width:900px){ .hero__inner{grid-template-columns:1fr} }

h1{font-size:44px;line-height:1.1;margin:0 0 14px}
h2{font-size:24px;margin:0 0 14px}
.lead{color:var(--muted);font-size:18px;margin:0 0 18px}

.card{
  background:var(--panel);
  border:1px solid var(--line);
  border-radius:18px;
  padding:18px;
  box-shadow: 0 12px 30px rgba(0,0,0,.25);
}

.cta{display:flex;gap:12px;flex-wrap:wrap;margin-top:10px}
.btn{
  display:inline-block;
  padding:10px 14px;
  border-radius:12px;
  background:var(--accent);
  color:#08101f;
  font-weight:800;
}
.btn--secondary{
  background:transparent;
  border:1px solid var(--line);
  color:var(--text);
}

.section{padding:34px 0}
.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
@media (max-width:900px){ .grid{grid-template-columns:1fr} }
.tile{
  border:1px solid var(--line);
  border-radius:18px;
  padding:16px;
  background:linear-gradient(180deg, rgba(17,21,34,.55), rgba(17,21,34,.15));
}
.tile p{color:var(--muted);margin:0}

.footer{border-top:1px solid var(--line);padding:18px 0}
.footer__inner{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap}
.muted{color:var(--muted)}

/* language flag */
.lang a{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:34px;
  height:34px;
  border-radius:10px;
  border:1px solid var(--line);
  background:rgba(255,255,255,.03);
  font-size:18px;
}
.lang a:hover{
  border-color:rgba(59,130,246,.6);
  transform: translateY(-1px);
}

/* active nav link */
.nav a.is-active{
  color: var(--text);
  position: relative;
}
.nav a.is-active::after{
  content:"";
  position:absolute;
  left:0; right:0; bottom:-10px;
  height:2px;
  background: var(--accent);
  border-radius:2px;
}

.linkedin-link{
  font-weight:600;
  color:#0A66C2; /* official LinkedIn blue */
  text-decoration:none;
  transition:opacity .2s ease, transform .2s ease;
}

.linkedin-link:hover{
  opacity:.8;
  text-decoration:underline;
}