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

body {
  background: linear-gradient(to bottom, #ffdce8, #fcd5ec);
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100vh;
}

.container {
  display: flex;
  justify-content: center;
  align-items: center;
}

.card {
  background: white;
  border-radius: 20px;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.05);
  padding: 30px 20px;
  text-align: center;
  width: 280px;
}

.heart {
  color: #ff4da6;
  font-size: 28px;
  margin-bottom: 10px;
}

.card h2 {
  color: #d60087;
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 15px;
}

.pin-inputs {
  display: flex;
  justify-content: center;
  gap: 8px;
  margin-bottom: 20px;
}

.pin-inputs input {
  width: 40px;
  height: 40px;
  border: 2px solid #f4b6d8;
  border-radius: 8px;
  text-align: center;
  font-size: 20px;
  background-color: white;
  outline: none;
}

.keypad {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
}

.keypad button {
  background: #ffd9ec;
  color: #d60087;
  font-size: 18px;
  border: none;
  border-radius: 50%;
  width: 60px;
  height: 60px;
  cursor: pointer;
  transition: background 0.2s;
}

.keypad button:hover {
  background: #ffc6e3;
}

.keypad .lock {
  background: #ff4da6;
  color: white;
  font-size: 22px;
}

.keypad .lock:hover {
  background: #e93d90;
}

.keypad .clear {
  font-size: 20px;
}