body {
  font-family: "Hiragino Maru Gothic ProN", "Rounded Mplus 1c", sans-serif;
  background: #fef6f9;
  color: #444;
  margin: 0;
  padding: 2em;
  text-align: center;
}

h1 {
  font-size: 1.8em;
  color: #e75480;
  margin-bottom: 1em;
}

main {
  background: #fff;
  border-radius: 16px;
  box-shadow: 0 4px 12px rgba(0,0,0,0.1);
  padding: 2em;
  display: inline-block;
  text-align: left;
  max-width: 600px;
  width: 90%;
}

input[type="text"], select, textarea {
  width: 100%;
  font-size: 1em;
  padding: 0.5em;
  margin: 0.5em 0;
  border: 2px solid #ffd1dc;
  border-radius: 8px;
  background: #fff0f5;
  box-sizing: border-box;
}

textarea {
  height: 120px;
  resize: vertical;
}

button {
  font-size: 1em;
  background: #ffd1dc;
  border: none;
  border-radius: 12px;
  padding: 0.6em 1.2em;
  margin: 0.3em;
  cursor: pointer;
  transition: background 0.2s;
}

button:hover {
  background: #ffb6c1;
}

button:active {
  background: #ff9aa2;
}

footer {
  margin-top: 2em;
  font-size: 0.9em;
  color: #888;
}

footer a {
  color: #e75480;
  text-decoration: none;
}

footer a:hover {
  text-decoration: underline;
}

#div_model {
  margin-bottom: 1em;
}