* { box-sizing: border-box; margin: 0; }
body {
  font-family: system-ui, 'Segoe UI', sans-serif;
  background: linear-gradient(135deg, #1a1c2c, #2d1b4e);
  color: #f0ecff;
  min-height: 100vh;
  display: grid;
  place-items: center;
  text-align: center;
}
main { padding: 40px; width: min(560px, 94vw); }
h1 { font-size: 38px; margin-bottom: 14px; }
h2 { font-size: 20px; margin-bottom: 12px; color: #d5ccf7; }
p { color: #b8aee0; font-size: 17px; margin-bottom: 10px; }
.card {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 14px;
  padding: 22px;
  margin: 18px 0;
}
button {
  font-size: 16px;
  padding: 10px 26px;
  border: none;
  border-radius: 10px;
  background: #7c5cff;
  color: white;
  cursor: pointer;
}
button:hover { background: #9578ff; }
form { display: flex; gap: 8px; margin-top: 12px; }
input {
  flex: 1;
  font-size: 15px;
  padding: 10px 12px;
  border-radius: 10px;
  border: 1px solid rgba(255, 255, 255, 0.2);
  background: rgba(0, 0, 0, 0.25);
  color: #f0ecff;
}
.msg {
  text-align: right;
  padding: 7px 10px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  font-size: 15px;
  color: #e2dbff;
}
.visitor { font-size: 12.5px; color: #7d739e; margin-top: 8px; }