*{
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Poppins', sans-serif;
}
body{
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    background: linear-gradient(270deg, #c44d59, #1e3a8a, #10b981, #f59e0b);
  background-size: 800% 800%;
  animation: gradientFlow 45s ease infinite;
}
@keyframes gradientFlow {
  0% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}
.converter-container{
    background: white;
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(10px);
    padding: 24px 30px;
    text-align: center;
}
.converter-container h1{
    font-size: 28px;
    color: #202124;
    margin-bottom: 40px;
}
.converter-container .input-container{
    border: 2px solid #c7bebe;
    border-radius: 4px;
    margin-block: 18px;
}

.converter-container .input-container:focus-within{
    border-color: #09295e;
}
.converter-container .input-container input , .converter-container .input-container select {
  width: 150px;
  outline: none;
  border: none;
  font-size: 20px;
  padding: 8px;
  overflow: hidden;
}
.converter-container .arrow{
  transform: rotate(90deg);
  font-size: 40px;
}

.converter-container .result{
  font-size: 20px;
  font-weight: 650;
  margin-top: 20px;
}
footer {
    position: fixed;
    left: 0;
    bottom: 0;
    width: 100vw;
    background: linear-gradient(270deg, #c44d59, #1e3a8a, #10b981, #f59e0b);
    color: #fff;
    text-align: center;
    padding: 5px 0;
    font-size: 1.1rem;
    letter-spacing: 1px;
    box-shadow: 0 -2px 12px rgba(26,107,228,0.15);
    z-index: 10;
}
.footer-content span {
    font-weight: 600;
    font-family: 'Segoe UI', sans-serif;
    display: inline-block;
    vertical-align: middle;
}



/* responsive */
@media (max-width: 400px) {
  .converter-container {
    width: 80%;
    margin: 0 auto;;
  }
  .converter-container .input-container {
    border: none;
  }
  .converter-container h1 {
    font-size: 24px;
  }
  .converter-container .input-container input,
  .converter-container .input-container select {
    border: 1px solid #c7bebe;
    margin-block: 4px;
    width: 100%;
  }
  .converter-container .arrow {
    font-size: 30px;
  }
  .converter-container .result {
    font-size: 18px;
    margin-top: 15px;
  }
  
}