* {
  padding: 0;
  margin: 0;
  box-sizing: border-box;
  font-family: "Poppins", sans-serif;
}

body {
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100vh;
  background: linear-gradient(135deg, #1a1f2b, #2d3250);
  color: #fff;
}

.card {
  background: rgba(255, 255, 255, 0.05);
  backdrop-filter: blur(12px);
  border-radius: 15px;
  padding: 30px;
  width: 380px;
  text-align: center;
  box-shadow: 0px 8px 25px rgba(0, 0, 0, 0.4);
}

h2 {
  font-size: 28px;
  margin-bottom: 20px;
  color: #ffd369;
}

.input {
  display: flex;
  justify-content: center;
  gap: 10px;
  margin-bottom: 20px;
}

#coinInput {
  flex: 1;
  padding: 12px;
  border-radius: 25px;
  border: none;
  outline: none;
  font-size: 16px;
  background: #2e3350;
  color: #fff;
  transition: 0.3s ease;
}

#coinInput:focus {
  background: #3b4066;
  box-shadow: 0 0 8px #ffd369;
}

#btn {
  padding: 12px 18px;
  border-radius: 25px;
  border: none;
  background: #ffd369;
  color: #1a1f2b;
  font-weight: bold;
  cursor: pointer;
  transition: 0.3s ease;
}

#btn:hover {
  background: #ffb703;
  transform: scale(1.05);
}

#result {
  margin-top: 20px;
  font-size: 18px;
  background: #2e3350;
  padding: 15px;
  border-radius: 12px;
  line-height: 1.6;
}

@media (max-width: 480px) {
  .card {
  width: 80vw;
}
}