/* リセット */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: 'Helvetica', sans-serif;
  background: linear-gradient(#e0f3f7, #cfe2e7);
  padding: 1em;
  line-height: 1.6;
}

.container {
  max-width: 480px;
  margin: auto;
  background: #fff;
  border-radius: 12px;
  padding: 1.5em;
  box-shadow: 0 0 12px rgba(0,0,0,0.1);
}

h1 {
  text-align: center;
  font-size: 1.4em;
  margin-bottom: 1em;
}

label {
  display: block;
  margin-bottom: 1em;
  font-weight: bold;
  font-size: 0.95em;
}

input, select, textarea {
  width: 100%;
  padding: 0.6em;
  margin-top: 0.5em;
  border: 1px solid #aaa;
  border-radius: 6px;
  font-size: 1em;
}

textarea {
  resize: vertical;
  min-height: 4em;
}

#submitBtn {
  width: 100%;
  background: #C8398F;
  color: white;
  border: none;
  padding: 1em;
  font-size: 1.1em;
  font-weight: bold;
  border-radius: 8px;
  cursor: pointer;
  margin-top: 1.5em;
}

#submitBtn:disabled {
  background-color: #aaa;
  cursor: not-allowed;
}

#ticketPrice {
  font-size: 0.9em;
  color: #444;
  margin-top: -0.5em;
  margin-bottom: 1em;
}

#completeMessage {
  text-align: center;
  font-size: 1.1em;
  color: #1a3c3e;
  margin-top: 2em;
  padding: 1em;
  background: #d1f0dd;
  border-radius: 10px;
}

/* ===== レスポンシブ（PC拡張） ===== */
@media screen and (min-width: 768px) {
  .container {
    max-width: 700px;
    padding: 2.5em;
  }

  h1 {
    font-size: 1.8em;
  }

  input, select, textarea {
    font-size: 1.1em;
  }

  #submitBtn {
    font-size: 1.2em;
  }
}

#confirmSection {
  background: #f5f5f5;
  padding: 1.5em;
  border-radius: 10px;
  font-size: 0.95em;
}

#confirmContent p {
  margin-bottom: 0.8em;
}

#accountNotice {
  margin-top: 1em;
  font-size: 0.9em;
  background: #eef;
  padding: 0.8em;
  border-radius: 6px;
}

#confirmBackBtn, #confirmSubmitBtn, #loginAccountBtn {
  background: #c0256c;
  color: white;
  border: none;
  padding: 0.6em 1.2em;
  font-size: 1em;
  margin: 0.5em 0.3em;
  border-radius: 6px;
  cursor: pointer;
}

#loginAccountBtn {
  background: #3a6bbd;
}