/* ═══════════════════════════════════════════
   Oil & Gas Consulting — shared stylesheet
   Navigation + base reset
   ═══════════════════════════════════════════ */

*, *::before, *::after { box-sizing: border-box; }

/* ─── NAV ─── */
.site-nav {
  background: #042c53;
  height: 60px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 2rem;
  position: sticky;
  top: 0;
  z-index: 300;
}
.nav-logo {
  display: flex; align-items: center; gap: 10px;
  text-decoration: none; flex-shrink: 0;
}
.nav-logo-icon {
  background: #378add; width: 36px; height: 36px; border-radius: 7px;
  display: flex; align-items: center; justify-content: center;
}
.nav-logo-text { color: #fff; font-size: 15px; font-weight: 600; white-space: nowrap; }
.nav-links { display: flex; gap: 1.4rem; align-items: center; }
.nav-links a {
  color: #b5d4f4; font-size: 13px; text-decoration: none;
  white-space: nowrap; transition: color .15s;
}
.nav-links a:hover, .nav-links a.active { color: #fff; }
.nav-lang {
  display: flex; align-items: center; gap: 6px;
  margin-left: 1rem; padding-left: 1rem;
  border-left: 1px solid rgba(255,255,255,.2);
}
.nav-lang a {
  color: #85b7eb; font-size: 12px; font-weight: 600;
  text-decoration: none; padding: 3px 7px; border-radius: 4px;
  transition: background .15s, color .15s;
}
.nav-lang a.active { background: #378add; color: white; }
.nav-lang a:hover:not(.active) { color: white; }
.nav-burger {
  display: none; background: none; border: none;
  color: white; cursor: pointer; padding: 4px; line-height: 1;
}
.nav-drawer {
  display: none; flex-direction: column;
  background: #031e3a; border-top: 1px solid rgba(255,255,255,.08);
  position: sticky; top: 60px; z-index: 299;
}
.nav-drawer.open { display: flex; }
.nav-drawer a {
  color: #b5d4f4; font-size: 15px; text-decoration: none;
  padding: 13px 1.5rem; border-bottom: 1px solid rgba(255,255,255,.06);
  display: block; transition: background .15s;
}
.nav-drawer a:hover { background: rgba(255,255,255,.05); color: #fff; }
.nav-drawer a.active { color: white; font-weight: 600; }
.nav-drawer-lang {
  display: flex; gap: 8px;
  padding: 12px 1.5rem; border-bottom: 1px solid rgba(255,255,255,.06);
}
.nav-drawer-lang a {
  color: #85b7eb; font-size: 13px; font-weight: 600;
  text-decoration: none; padding: 4px 10px; border-radius: 4px;
}
.nav-drawer-lang a.active { background: #378add; color: white; }

/* ─── NAV RESPONSIVE ─── */
@media (max-width: 768px) {
  .nav-links, .nav-lang { display: none; }
  .nav-burger { display: block; }
  .nav-logo-text { display: none; }
  .site-nav { padding: 0 1.25rem; }
}