header {
  min-height: 100vh;
  position: relative;

  display: flex;
  align-items: center;
  justify-content: center;

  text-align: center;

  padding: 40px 20px;

  background:
    radial-gradient(
      circle at top right,
      rgba(35,113,215,0.45),
      transparent 32%
    ),

    radial-gradient(
      circle at center,
      rgba(35,113,215,0.18),
      transparent 45%
    ),

    linear-gradient(
      rgba(0,0,0,0.72),
      rgba(0,0,0,0.88)
    ),

    url(../images/gallery/photo1.jpg);

  background-size: cover;
  background-position: center;
}

/* Navigation */

.main-nav {
  position: fixed;
  top: 25px;
  left: 30px;

  display: flex;
  gap: 18px;

  z-index: 10;

  background: rgba(0,0,0,0.25);

  padding: 8px 14px;

  border-radius: 12px;

  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);

  border: 1px solid rgba(255,255,255,0.08);
}

.main-nav a {
  font-weight: 600;
  font-size: 14px;

  color: #cccccc;

  transition: 0.3s;
}

.main-nav a:hover {
  color: #2371d7;
}

/* Active menu section */

.main-nav > a.active {
  color: #2371d7;
}

/* Active mobile language */

.main-nav .mobile-lang-links a.lang-active {
  background: #1e88ff;
  border-color: #1e88ff;
  color: #ffffff !important;
}

.main-nav.scrolled,
.lang-switch.scrolled {
  background: rgba(10,10,10,0.75);

  box-shadow: 0 8px 30px rgba(0,0,0,0.35);

  border-color: rgba(255,255,255,0.12);
}

/* Desktop language switch */

.lang-switch {
  position: fixed;
  top: 25px;
  right: 30px;

  display: flex;
  gap: 12px;

  z-index: 10;

  background: rgba(0,0,0,0.25);

  padding: 8px 14px;

  border-radius: 12px;

  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);

  border: 1px solid rgba(255,255,255,0.08);
}

.lang-switch a {
  font-weight: bold;
  font-size: 14px;

  color: #cccccc;
}

.lang-switch a:hover,
.lang-switch a.active {
  color: #2371d7;
}

/* Hero */

.hero {
  max-width: 900px;

  animation: fadeUp 3s ease forwards;
}

@keyframes fadeUp {

  from {
    opacity: 0;
    transform: translateY(30px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }

}

.logo-image {
  width: 440px;
  max-width: 85%;

  margin-bottom: 75px;

  filter: drop-shadow(
    0 0 28px rgba(255,255,255,0.18)
  );
}

.blue {
  color: #2371d7FF;
}

.subtitle {
  font-size: clamp(22px, 3vw, 34px);

  color: #2371d7FF;

  margin-bottom: 15px;

  font-weight: 600;
}

.services-line {
  font-size: 18px;

  color: #cccccc;

  letter-spacing: 1px;

  margin-bottom: 100px;
}

.buttons {
  display: flex;
  gap: 16px;

  justify-content: center;
  flex-wrap: wrap;
}

.btn {
  padding: 15px 28px;

  border-radius: 14px;

  font-weight: bold;

  transition: 0.3s;

  border: 1px solid rgba(255,255,255,0.25);
}

.btn-primary {
  background: #2371d7FF;
  border-color: #2371d7FF;
}

.btn-primary:hover {
  background: #6176ff;
}

.btn-secondary:hover {
  border-color: #2371d7FF;
  color: #2371d7FF;
}

section {
  padding: 90px 20px;
}

.section-dark {
  background: #111111;
}