body {
  margin: 0;
  height: 100vh;
  display: flex;
  justify-content: center;
  align-items: center;
  background: linear-gradient(135deg, #ececec, #cfcfcf);
  font-family: system-ui, sans-serif;
  color: #333;
  text-align: center;
  transition: background 0.5s ease; /* smooth background transitions */
}

.content {
  display: flex;
  flex-direction: column;
  align-items: center;
}

button#kindBtn {
  font-size: 8vw;
  padding: 1em 2em;
  border: none;
  border-radius: 12px;
  cursor: pointer;
  background-color: #8b5e3c;
  color: #fff;
  transition: transform 0.2s, background-color 0.2s, box-shadow 0.3s;
}

button#kindBtn:hover {
  transform: scale(1.05);
  background-color: #a17658;
}

button#kindBtn.active {
  box-shadow: 0 0 20px 5px rgba(139, 94, 60, 0.6); /* subtle glow */
}

p {
  font-size: 4vw;
  margin-top: 1em;
  opacity: 0.8;
  max-width: 80vw;
}