* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  background: linear-gradient(to right, #000428, #004e92);
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100vh;
  color: #fff;
  animation: bgFade 10s ease-in-out infinite alternate;
}

@keyframes bgFade {
  0% {
    background: linear-gradient(to right, #000428, #004e92);
  }
  100% {
    background: linear-gradient(to right, #1e3c72, #fdbb2d);
  }
}

.weather-box {
  background: rgba(255, 255, 255, 0.15);
  border-radius: 20px;
  padding: 30px;
  box-shadow: 0 10px 30px rgba(255, 255, 255, 0.2);
  backdrop-filter: blur(12px);
  text-align: center;
  transition: all 0.4s ease;
  width: 90%;
  max-width: 450px;
  border: 1px solid rgba(255, 255, 255, 0.2);
}

.weather-box:hover {
  transform: translateY(-5px) scale(1.03);
  box-shadow: 0 25px 50px rgba(255, 255, 255, 0.3);
}

h2 {
  font-size: 30px;
  margin-bottom: 20px;
  color: #fddb3a;
  text-shadow: 1px 1px 2px #000;
}

input {
  padding: 14px;
  width: 100%;
  font-size: 16px;
  border: none;
  border-radius: 8px;
  margin-bottom: 15px;
  outline: none;
  background-color: rgba(255, 255, 255, 0.8);
  color: #333;
  transition: box-shadow 0.3s ease;
}

input:focus {
  box-shadow: 0 0 10px #fddb3a;
}

button {
  padding: 12px 24px;
  background: linear-gradient(to right, #00c6ff, #0072ff);
  color: white;
  border: none;
  border-radius: 8px;
  font-size: 16px;
  cursor: pointer;
  transition: all 0.3s ease;
}

button:hover {
  background: linear-gradient(to right, #fddb3a, #0072ff);
  color: #000;
}

.error {
  color: #ff4d4d;
  margin-top: 10px;
  font-weight: bold;
}

.weather-info {
  margin-top: 20px;
  text-align: center;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 15px;
  padding: 15px;
  color: #fff;
  animation: fadeIn 1s ease forwards;
}

.weather-info p {
  margin: 10px 0;
  font-size: 18px;
  color: #fff;
  font-weight: bold;
}

.weather-icon {
  width: 100px;
  height: 100px;
  margin-bottom: 10px;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

@media screen and (max-width: 480px) {
  .weather-box {
    padding: 20px;
  }

  input, button {
    font-size: 14px;
  }

  h2 {
    font-size: 24px;
  }

  .weather-icon {
    width: 70px;
    height: 70px;
  }
}