/* pro100osago: unified site header (desktop + mobile) */

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 200;

  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);

  border-bottom: 1px solid rgba(0, 0, 0, 0.05);
  transition: box-shadow 0.2s ease;
}

.site-header.scrolled {
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
}

.site-header .header-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1rem;

  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;

  height: 72px;
}

.site-header .logo {
  display: flex;
  align-items: center;
  text-decoration: none;
  flex: 0 0 auto;
}

.site-header .logo img {
  height: 48px;
  width: auto;
  display: block;
}

.site-header .main-nav {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  flex: 1 1 auto;
}

.site-header .nav-link {
  padding: 0.5rem 1rem;
  font-size: 0.9rem;
  font-weight: 600;
  color: #374151; /* gray-700 */
  text-decoration: none;
  border-radius: 10px;
  transition: background 0.15s ease, color 0.15s ease;
  white-space: nowrap;
}

.site-header .nav-link:hover {
  color: #2563eb;
  background: rgba(37, 99, 235, 0.06);
}

.site-header .nav-link.active,
.site-header .nav-link[aria-current=page] {
  color: #2563eb;
  background: rgba(37, 99, 235, 0.12);
}

.site-header .header-cta {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex: 0 0 auto;
}

.site-header .header-phone {
  font-size: 0.95rem;
  font-weight: 700;
  color: #111827; /* gray-900 */
  text-decoration: none;
  white-space: nowrap;
}

.site-header .header-phone:hover {
  text-decoration: underline;
}

.site-header .btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;

  padding: 0.75rem 1.25rem;
  font-size: 0.875rem;
  font-weight: 700;
  line-height: 1;

  border-radius: 14px;
  text-decoration: none;
  white-space: nowrap;
}

.site-header .btn-primary {
  color: #fff;
  background: linear-gradient(135deg, #2563eb, #06b6d4);
  box-shadow: 0 4px 14px rgba(37, 99, 235, 0.25);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.site-header .btn-primary:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(37, 99, 235, 0.35);
}

.site-header .mobile-menu-btn {
  display: none;
  background: none;
  border: none;
  padding: 0.5rem;
  cursor: pointer;
  color: #111827;
}

.site-header .mobile-menu-btn svg {
  display: block;
}

.site-header-spacer {
  height: 72px;
}

@media (max-width: 1024px) {
  .site-header .main-nav {
    display: none;

    position: absolute;
    top: 72px;
    left: 0;
    right: 0;

    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);

    border-bottom: 1px solid rgba(0, 0, 0, 0.06);

    padding: 0.75rem 1rem 1rem;
    flex-direction: column;
    align-items: stretch;
    gap: 0.25rem;
  }

  .site-header.menu-open .main-nav {
    display: flex;
  }

  .site-header .nav-link {
    padding: 0.75rem 1rem;
  }

  .site-header .mobile-menu-btn {
    display: block;
  }
}

@media (max-width: 520px) {
  .site-header .header-phone {
    display: none;
  }

  .site-header .btn {
    padding: 0.65rem 1rem;
    font-size: 0.85rem;
    border-radius: 12px;
  }
}