body { background:#f4f4f4; margin:0; font-family:Arial; }
header{ background:#111; color:#fff; text-align:center; padding:18px; }

form {
  max-width:800px;
  margin:auto;
  padding:18px;
}

section {
  background:#fff;
  padding:15px;
  margin-bottom:15px;
  border-radius:10px;
  box-shadow:0 2px 8px rgba(0,0,0,.1);
}

h3 { margin-top:0; }

.check label { display:block; margin:10px 0; }

input[type="text"], input[type="number"], textarea {
  width:100%; padding:10px; margin-top:6px;
  border:1px solid #ccc; border-radius:6px;
}

button {
  padding:15px;
  width:100%;
  margin-top:12px;
  background:#0078ff;
  color:#fff;
  border:none;
  border-radius:8px;
  font-size:16px;
  font-weight:bold;
}

button:hover { background:#005fd1; }

#preview img { width:100%; margin-top:8px; border-radius:6px; }

/* Floating home button */
#floatingHome{
  position: fixed;
  bottom: 18px;
  right: 18px;
  height: 55px;
  width: 55px;
  background:#0078ff;
  color:#fff;
  border-radius:50%;
  display:flex;
  justify-content:center;
  align-items:center;
  font-size:26px;
  box-shadow:0 5px 14px rgba(0,0,0,0.3);
  text-decoration:none;
  z-index:999;
}