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

body {
  background: linear-gradient(145deg, #001c2c, #003d5c);
  color: #fff;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 20px;
}

.container {
  background: #012c47;
  padding: 50px;
  border-radius: 20px;
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.2);
  max-width: 700px;
  width: 100%;
}

.container h1 {
  font-size: 2.5rem;
  text-align: center;
  font-weight: 600;
  margin-bottom: 20px;
}

.container h1 span {
  color: #01d178;
  border-bottom: 4px solid #01d178;
  padding-bottom: 5px;
}

.display {
  background: #fff;
  color: #333;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px;
  border-radius: 10px;
  box-shadow: inset 0 0 5px #00000010;
  margin: 30px 0;
}

.display input {
  border: none;
  outline: none;
  font-size: 1.5rem;
  width: 100%;
  color: #000;
}

.display img {
  width: 28px;
  margin-left: 15px;
  cursor: pointer;
  transition: transform 0.2s ease-in-out;
}
.display img:hover {
  transform: scale(1.2);
}

.container button {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  background-color: #01d178;
  color: white;
  font-size: 1.2rem;
  font-weight: 500;
  padding: 16px 24px;
  border-radius: 8px;
  border: none;
  cursor: pointer;
  transition: all 0.3s ease;
  width: 100%;
  box-shadow: 0 5px 15px rgba(1, 209, 120, 0.3);
}
.container button:hover {
  background-color: #00b86b;
  box-shadow: 0 0 12px #01d178;
  transform: translateY(-2px);
}
.container button img {
  width: 26px;
}

footer {
  text-align: center;
  margin-top: 40px;
  font-size: 1rem;
  opacity: 0.8;
}

footer span {
  color: #01d178;
  font-weight: 500;
}

/* Copy Message */
.copy-msg {
  position: fixed;
  bottom: 30px;
  left: 50%;
  transform: translateX(-50%) scale(0.9);
  background: #01d178;
  color: #fff;
  padding: 10px 20px;
  border-radius: 30px;
  font-weight: 500;
  opacity: 0;
  pointer-events: none;
  transition: all 0.3s ease;
  z-index: 1000;
}

.copy-msg.active {
  opacity: 1;
  transform: translateX(-50%) scale(1);
}