.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 70px;
  padding: 0 4%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  z-index: 1000;
  transition: background 0.4s ease, backdrop-filter 0.4s;
  background: linear-gradient(to bottom, rgba(0,0,0,0.9) 0%, transparent 100%);
}

.header.scrolled {
  background-color: rgba(15, 16, 20, 0.98);
  box-shadow: 0 4px 20px rgba(0,0,0,0.3);
}

.logo {
  font-size: 24px;
  font-weight: 900;
  letter-spacing: -0.5px;
  background: linear-gradient(90deg, #E50914 0%, #ff5f6d 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  text-transform: uppercase;
}

.search-box {
  display: flex;
  align-items: center;
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 50px;
  padding: 2px 5px 2px 15px;
  transition: 0.3s;
}

.search-box:focus-within {
  background: rgba(0, 0, 0, 0.8);
  border-color: #E50914;
}

.search-box input {
  background: transparent;
  border: none;
  color: #fff;
  font-size: 13px;
  width: 150px;
}

.search-box input::placeholder {
  color: rgba(255, 255, 255, 0.5);
}

.search-box button {
  background: transparent;
  border: none;
  color: #fff;
  cursor: pointer;
  padding: 5px 10px;
}

#install-btn {
  background: #E50914;
  color: #fff;
  border: none;
  padding: 5px 15px;
  border-radius: 50px;
  cursor: pointer;
  font-size: 12px;
  font-weight: bold;
}

@media (max-width: 768px) {
  .logo { 
    font-size: 18px; 
  }
  .search-box input { 
    width: 100px; 
    font-size: 12px; 
  }
}