:root{
  --bg: #f1f8e9;
  --text: #4d4d4d;
  --muted: #b3b3b3;
  --brand-navy: #1a237e;
  --brand-navy-dark: #0d1140;
  --accent-green: #9ac9cf;
  --danger: crimson;
  --white: #ffffff;
  --input-border: #ccc;
  --radius: 4px;
  --max-width: 1020px;
  --container-padding: 20px;
  --btn-width: 200px;
  --btn-height: 45px;
}

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

html, body {
  background-color: var(--bg);
  color: var(--text);
  font-family: "Helvetica Neue", Arial, "Hiragino Kaku Gothic ProN", "Hiragino Sans", Meiryo, sans-serif;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  -webkit-text-size-adjust: 100%;
}

/* レイアウト */
#contact {
  width: min(100%, var(--max-width));
  margin: 0 auto;
  padding: var(--container-padding);
  background-color: transparent;
}

#contact h1 {
  font-size: 24px;
  font-weight: 500;
  text-align: center;
  margin: 30px 0 20px;
}

.intro {
  text-align: center;
  line-height: 1.6;
}

/* ステップナビ */
.flow {
  display: flex;
  justify-content: center;
  list-style: none;
  margin: 40px 0 30px;
  gap: 8px;
}

.flow li {
  flex: 1;
  max-width: 200px;
  text-align: center;
  padding: 6px 0;
  border-bottom: 2px solid var(--muted);
  color: var(--muted);
  position: relative;
  font-size: 15px;
}

.flow li::after {
  content: '';
  position: absolute;
  right: calc(50% - 5px);
  bottom: -6px;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--muted);
}

.flow .spot {
  border-bottom-color: var(--accent-green);
  color: #333;
  font-weight: 700;
}

.flow .spot::after {
  background: var(--accent-green);
}

/* フォーム */
#contact form {
  width: 80%;
  margin: 40px auto;
  max-width: 900px;
}

.formbox {
  display: flex;
  gap: 12px;
  margin-bottom: 20px;
  align-items: flex-start;
}

.formbox label {
  width: 25%;
  padding-right: 25px;
  text-align: right;
  margin-top: 12px;
  font-size: 15px;
}

.inputText {
  width: 75%;
}

/* 入力共通 */
.formbox input[type="text"],
.formbox input[type="tel"],
.formbox input[type="email"],
.formbox input[type="date"],
.formbox input[type="time"],
.formbox select,
.formbox textarea {
  width: 100%;
  min-height: 40px;
  border-radius: 3px;
  border: 1px solid var(--input-border);
  padding: 8px 10px;
  font-size: 16px;
  color: var(--text);
  background-color: var(--white);
}

/* disabled 状態の視認性 */
.formbox input[disabled],
.formbox select[disabled],
.formbox textarea[disabled] {
  background-color: #f3f3f3;
  color: #888;
  cursor: not-allowed;
}

/* エラーメッセージ */
.error-msg {
  color: var(--danger);
  font-size: 14px;
  font-weight: 700;
  margin: 0 0 8px 0;
  display: block;
}

/* 確認表示 */
.inputText p:not(.text12):not(.error-msg) {
  font-size: 16px;
  padding: 10px 0;
  color: #1a1a1a;
  font-weight: 700;
  overflow-wrap: anywhere;
}

/* ボタン */
.confi {
  display: flex;
  justify-content: center;
  gap: 20px;
  margin: 40px auto 20px;
  width: 100%;
  align-items: center;
}

.confi input[type="submit"],
.confi .btn-back,
.btn-send,
.btn-back {
  display: inline-block;
  width: var(--btn-width);
  height: var(--btn-height);
  line-height: var(--btn-height);
  text-align: center;
  font-size: 16px;
  font-weight: 700;
  border: none;
  border-radius: var(--radius);
  cursor: pointer;
  transition: background-color 0.2s ease, opacity 0.2s ease;
}

/* 送信 */
.confi input[type="submit"],
.btn-send {
  background: var(--brand-navy);
  color: var(--white);
}
.confi input[type="submit"]:hover,
.confi input[type="submit"]:focus,
.btn-send:hover,
.btn-send:focus {
  background: var(--brand-navy-dark);
  outline: none;
}

/* 戻る */
.confi .btn-back,
.btn-back {
  background: #cccccc;
  color: #333;
}
.confi .btn-back:hover,
.confi .btn-back:focus,
.btn-back:hover,
.btn-back:focus {
  background: #b3b3b3;
  outline: none;
}

/* フォーカスの可視化（キーボード利用者向け） */
:focus-visible {
  outline: 3px solid rgba(26,35,126,0.22);
  outline-offset: 2px;
}

/* 装飾・その他 */
#telBottom {
  width: 100%;
  border-top: 1px solid #b3b3b3;
  padding-top: 35px;
  margin: 40px 0;
}

.text12 { font-size: 12px; color: #777; }
.need { font-size: 12px; color: var(--danger); padding-left: 6px; font-weight: 700; }
.textCenter { text-align: center; font-size: 16px; }

/* ポリシー領域 */
.policy-box {
  background: var(--white);
  border: 1px solid #dcedc8;
  border-radius: 6px;
  padding: 20px;
  margin-bottom: 20px;
  box-shadow: 0 2px 5px rgba(0,0,0,0.03);
}
.policy-box h4 {
  font-size: 15px;
  color: #2e7d32;
  margin-bottom: 12px;
  border-bottom: dashed 1px #ccc;
  padding-bottom: 6px;
}
.warning-text { color: var(--danger); font-weight: 700; }

/* テーブル */
.policy-table { width: 100%; border-collapse: collapse; margin: 15px 0; font-size: 14px; }
.policy-table th, .policy-table td { padding: 10px; border-bottom: 1px solid #eee; text-align: left; }
.policy-table th { width: 40%; color: #666; font-weight: 400; }
.policy-table td strong { color: var(--danger); }

/* レスポンシブ */
@media only screen and (max-width: 768px) {
  .flow li { font-size: 13px; padding: 6px 0; }
  #contact form { width: 100%; margin: 30px auto; }
  .formbox { flex-direction: column; margin-bottom: 15px; align-items: stretch; }
  .formbox label { width: 100%; padding: 0; text-align: left; margin-top: 0; margin-bottom: 6px; font-weight: 700; }
  .inputText { width: 100%; }
  .confi { flex-direction: column; align-items: center; gap: 15px; }
  .confi input[type="submit"], .confi .btn-back { width: 100%; max-width: 300px; }
  .policy-box { padding: 15px; }
  .policy-table th, .policy-table td { display: block; width: 100%; padding: 4px 0; }
  .policy-table th { border-bottom: none; color: #333; font-weight: 700; margin-top: 8px; }
}

/* アクセシビリティと環境配慮 */
@media (prefers-reduced-motion: reduce) {
  * { transition: none !important; animation: none !important; }
}

/* 印刷用スタイル */
@media print {
  body { background: #fff; color: #000; }
  #contact { width: 100%; padding: 0; box-shadow: none; background: #fff; }
  .confi, .flow { display: none; }
  .policy-box { box-shadow: none; border: 1px solid #ccc; }
  a[href]:after { content: " (" attr(href) ")"; font-size: 10px; color: #000; }
}