/* ===== HEADER ===== */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  z-index: 1000;
  box-shadow: var(--shadow-sm);
  border-bottom: 1px solid var(--gray-200);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 80px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 12px;
  position: relative;
}

.logo-img {
  width: 40px;
  height: 40px;
  border-radius: 12px;
}

.logo-text {
  font-size: 1.5rem;
  font-weight: 700;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.logo-badge {
  background: var(--primary);
  color: white;
  font-size: 0.7rem;
  font-weight: 600;
  padding: 2px 8px;
  border-radius: 30px;
  margin-left: 8px;
  letter-spacing: 0.5px;
}

.nav-links {
  display: flex;
  gap: 32px;
}

.nav-link {
  text-decoration: none;
  color: var(--gray-700);
  font-weight: 500;
  font-size: 0.95rem;
  transition: var(--transition);
  position: relative;
}

.nav-link:hover {
  color: var(--primary);
}

.nav-link::after {
  content: "";
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--primary), var(--secondary));
  transition: var(--transition);
  border-radius: 2px;
}

.nav-link:hover::after {
  width: 100%;
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 16px;
}

.language-selector {
  display: flex;
  gap: 4px;
  background: var(--gray-100);
  padding: 4px;
  border-radius: 40px;
}

.lang-btn {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 8px 16px;
  border: none;
  background: transparent;
  border-radius: 30px;
  cursor: pointer;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--gray-600);
  transition: var(--transition);
}

.lang-btn span {
  font-size: 0.85rem;
}

.lang-btn:hover {
  background: rgba(99, 102, 241, 0.1);
  color: var(--primary);
}

.lang-btn.active {
  background: white;
  color: var(--primary);
  box-shadow: var(--shadow-sm);
}

.mobile-menu-btn {
  display: none;
  background: none;
  border: none;
  font-size: 1.5rem;
  color: var(--gray-700);
  cursor: pointer;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  transition: var(--transition);
}

.mobile-menu-btn:hover {
  background: var(--gray-100);
}