@import url("https://fonts.googleapis.com/css2?family=Roboto:wght@400;500;700&display=swap");

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

body {
  display: flex;
  padding: 0 15px;
  min-height: 100vh;
  align-items: center;
  background: linear-gradient(180deg, #f0f0f0 50%, #7b5e57 50%);
  justify-content: center;
  color: #333;
}

.wrapper {
  height: 270px;
  max-width: 420px;
  background: #f8f8f8;
  border-radius: 10px;
  padding: 25px 30px 0;
  transition: height 0.3s ease;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

.wrapper.active {
  height: 540px;
}

header h1 {
  font-size: 24px;
  font-weight: 600;
  color: #333;
}

header p {
  margin-top: 8px;
  color: #666;
  font-size: 18px;
}

.wrapper .form {
  margin: 25px 0 30px;
}

.form :where(input, button) {
  width: 100%;
  height: 60px;
  border: none;
  outline: none;
  border-radius: 8px;
  transition: 0.2s ease;
}

.form input {
  font-size: 20px;
  padding: 0 20px;
  border: 1px solid #ccc;
  color: #333;
  background: #eee;
}

.form input:focus {
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
}

.form input::placeholder {
  color: #888;
}

.form button {
  color: #fff;
  cursor: pointer;
  margin-top: 25px;
  font-size: 18px;
  background: #555;
  transition: background 0.3s ease, transform 0.3s ease;
}

.form button:hover {
  background: #444;
}

.form button:active {
  transform: scale(0.98);
}

.qr-code {
  opacity: 0;
  display: flex;
  padding: 40px 0;
  border-radius: 8px;
  align-items: center;
  pointer-events: none;
  justify-content: center;
  border: 1px solid #ddd;
}

.wrapper.active .qr-code {
  opacity: 1;
  pointer-events: auto;
  transition: opacity 0.6s 0.1s ease;
}

.qr-code img {
  width: 180px;
}

@media (max-width: 430px) {
  .wrapper {
    height: 260px;
    padding: 20px 25px;
  }
  .wrapper.active {
    height: 520px;
  }
  header p {
    color: #888;
  }
  .form :where(input, button) {
    height: 55px;
  }
  .qr-code img {
    width: 170px;
  }
}