* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html, body {
  height: 100%;
}

body {
  font-family: "Outfit", sans-serif;
  background-image: url("https://images3.alphacoders.com/109/1091500.jpg");
  background-size: cover;
  background-repeat: no-repeat;
  background-attachment: fixed;
  background-position: top center;
  animation: backgroundColorChange 20s infinite;
}

@keyframes backgroundColorChange {
  0% { background-color: rgba(0, 0, 0, 0.3); }
  25% { background-color: rgba(18, 52, 86, 0.3); }
  50% { background-color: rgba(34, 34, 34, 0.3); }
  75% { background-color: rgba(86, 18, 52, 0.3); }
  100% { background-color: rgba(0, 0, 0, 0.3); }
}

.app-wrap {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  background-image: linear-gradient(to bottom, rgba(0, 0, 0, 0.3), rgba(0, 0, 0, 0.6));
}

header {
  display: flex;
  justify-content: center;
  align-items: center;
  padding: 50px 15px 15px;
}

header input {
  width: 100%;
  max-width: 280px;
  padding: 10px 15px;
  border: none;
  outline: none;
  background-color: rgba(18, 18, 18, 0.4);
  border-radius: 16px;
  border-bottom: 3px solid #df8e00;
  font-size: 20px;
  font-weight: 300;
  transition: 0.2s ease-out;
  color: #eeeeee;
  animation: inputPulse 2s infinite;
}

@keyframes inputPulse {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.05); }
}

header input:focus {
  background-color: rgba(18, 18, 18, 0.8);
}

main {
  flex: 1 1 100%;
  padding: 25px 25px 50px;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}

.location .city {
  color: #eeeeee;
  font-size: 32px;
  font-weight: 500;
  margin-bottom: 5px;
  animation: colorChange 3s infinite alternate;
}

.location .date {
  color: #eeeeee;
  font-size: 16px;
}

.current .temp {
  color: var(--temp-color, #eeeeee);
  font-size: 102px;
  font-weight: 900;
  margin: 30px 0;
  text-shadow: 2px 8px rgba(0, 0, 0, 0.5);
  animation: tempColorChange 3s infinite alternate, bounce 3s infinite;
}

@keyframes tempColorChange {
  0% { color: var(--temp-color-start, #eeeeee); }
  100% { color: #ffffff; }
}

@keyframes bounce {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}

.current .temp span {
  font-weight: 200;
}

.current .weather {
  color: #eeeeee;
  font-size: 32px;
  font-weight: 700;
  font-style: italic;
  margin-bottom: 15px;
  text-shadow: 0 3px rgba(0, 0, 0, 0.4);
  animation: bounce 3s infinite;
}

.current .hi-low {
  color: #eeeeee;
  font-size: 24px;
  font-weight: 500;
  text-shadow: 0 3px rgba(0, 0, 0, 0.4);
}

/* Media Queries */

/* Tablets and below */
@media (max-width: 768px) {
  header {
      padding: 40px 15px 10px;
  }

  header input {
      max-width: 240px;
      font-size: 18px;
  }

  main {
      padding: 20px 20px 40px;
  }

  .location .city {
      font-size: 28px;
  }

  .location .date {
      font-size: 14px;
  }

  .current .temp {
      font-size: 80px;
  }

  .current .weather {
      font-size: 28px;
  }

  .current .hi-low {
      font-size: 20px;
  }
}

/* Mobile phones */
@media (max-width: 480px) {
  header {
      padding: 30px 10px 5px;
  }

  header input {
      max-width: 200px;
      font-size: 16px;
  }

  main {
      padding: 15px 15px 30px;
  }

  .location .city {
      font-size: 24px;
  }

  .location .date {
      font-size: 12px;
  }

  .current .temp {
      font-size: 60px;
  }

  .current .weather {
      font-size: 24px;
  }

  .current .hi-low {
      font-size: 18px;
  }
}