.header {
  position: relative;
  width: 100%;
  background-color: #ffffff;
  padding: clamp(20px, 4vw, 32px) 20px clamp(16px, 3vw, 24px);
  box-sizing: border-box;
  text-align: center;
}

body {
  margin: 0;
}

/* ロゴ：ヘッダー上部に中央配置 */
.logo {
  margin: 0 0 clamp(14px, 3vw, 24px);
}

.logo img {
  height: clamp(50px, 7vw, 90px);
}

.line{
  border: none;        /* デフォルトの線を消す */
  height: 1.5px;         /* 太さ */
  background-color: #333; /* 線の色 */
  width: calc(100% + 40px); /* .headerの左右padding(20px)分をはみ出させて端まで届かせる */
  margin-left: -20px;
  margin-right: -20px;
}

/* ハンバーガーボタン（モバイル用） */
.menu-btn,
.menu-close {
  display: none;
  background: none;
  border: none;
  font-size: 12px;
  letter-spacing: 0.15em;
  cursor: pointer;
}

/* ナビ全体：ロゴ下に横並びで中央配置 */
nav ul {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: clamp(16px, 3vw, 40px);
  list-style: none;
  margin: 0;
  padding: 0;
}

/* 各リンク */
nav a {
  text-decoration: none;
  color: #333;
  font-size: 18px;
  font-weight: 550;
  letter-spacing: 0.08em;
  white-space: nowrap;
  transition: color 0.2s ease;
}

/* スケジュール：虹色の「橙」 */
nav a:hover {
  color: #c9a179;
}

/* HOME：どのページからでも虹色のグラデーションで表示 */
nav a[href="main.html"]:hover {
  background-image: linear-gradient(90deg, #e5484d, #c9a179, #e0b400, #7fad8f, #3f7fd1, #4a4e9e, #8e5fc4);
  background-clip: text;
  -webkit-background-clip: text;
  color: transparent;
  -webkit-text-fill-color: transparent;
}

/* 区切り線 */
nav .separator {
  color: #ccc;
  font-size: 21px;
  font-weight: 300;
  line-height: 1;
}

/* モバイル：ハンバーガーメニューに切り替え */
@media (max-width: 768px) {
  .menu-btn {
    display: block;
    position: absolute;
    top: clamp(20px, 4vw, 32px);
    right: 24px;
  }

  .menu-body {
    position: fixed;
    inset: 0;
    background: #fff;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 28px;
    transform: translateX(100%);
    transition: transform 0.3s ease;
    z-index: 1000;
  }

  .menu-body.is-open {
    transform: translateX(0);
  }

  .menu-close {
    display: block;
    position: absolute;
    top: 24px;
    right: 24px;
  }

  nav ul {
    flex-direction: column;
    gap: 28px;
  }

  .separator {
    display: none;
  }
}

/* レンタルスペース・料金／委託販売と同じ、タイトル上に見出しのアクセント線を入れる */
.page-hero {
  max-width: 820px;
  margin: 40px auto 0;
  padding: 14px 20px 0;
  box-sizing: border-box;
  text-align: center;
  border-top: 3px solid #c9a179;
}

.page-title {
  font-size: clamp(22px, 4vw, 28px);
  letter-spacing: 0.08em;
  margin: 0;
}

/* ==== イベントカレンダー ==== */
.calendar {
  max-width: 900px;
  margin: 40px auto 60px;
  padding: 0 20px;
  box-sizing: border-box;
}

.cal-header {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 24px;
  margin-bottom: 16px;
}

.cal-month-label {
  font-family: "Hiragino Mincho ProN", "Yu Mincho", serif;
  font-size: 24px;
  letter-spacing: 0.1em;
  margin: 0;
  min-width: 160px;
  text-align: center;
}

.cal-nav {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: 1px solid #999;
  background: none;
  font-size: 20px;
  line-height: 1;
  cursor: pointer;
  transition: background-color 0.2s ease, color 0.2s ease;
}

.cal-nav:hover:not(:disabled) {
  background: #2e8b57;
  border-color: #2e8b57;
  color: #fff;
}

.cal-nav:disabled {
  opacity: 0.3;
  cursor: not-allowed;
}

.cal-weekdays {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  text-align: center;
  font-size: 13px;
  font-weight: 600;
  color: #666;
  padding-bottom: 8px;
  border-bottom: 1px solid #ddd;
}

.cal-grid {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 1px;
  background: #ddd;
  border: 1px solid #ddd;
}

.cal-cell {
  background: #fff;
  min-height: 110px;
  padding: 6px;
  display: flex;
  flex-direction: column;
  gap: 4px;
  box-sizing: border-box;
}

.cal-cell-empty {
  background: #fafafa;
}

.cal-cell-today {
  background: #f5fbf7;
}

.cal-day-number {
  font-size: 13px;
  font-weight: 600;
  color: #333;
}

.cal-cell-sun .cal-day-number {
  color: #c0392b;
}

.cal-cell-sat .cal-day-number {
  color: #2e6da4;
}

.cal-event-chip {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 2px;
  width: 100%;
  background: #eaf4ee;
  border: 1px solid #2e8b57;
  border-radius: 4px;
  padding: 4px 6px;
  font-size: 11px;
  text-align: left;
  cursor: pointer;
  transition: background-color 0.2s ease, color 0.2s ease;
}

.cal-event-chip:hover {
  background: #2e8b57;
  color: #fff;
}

.cal-event-title {
  font-weight: 600;
}

.cal-event-chip.is-full {
  background: #f7ecec;
  border-color: #b51a1a;
  color: #b51a1a;
}

.cal-event-chip.is-full:hover {
  background: #b51a1a;
  color: #fff;
}

.cal-loading,
.cal-error {
  grid-column: 1 / -1;
  text-align: center;
  padding: 40px 0;
  color: #666;
  background: #fff;
}

/* イベント詳細ダイアログ */
.event-dialog {
  position: relative;
  border: none;
  border-radius: 8px;
  padding: 30px;
  max-width: 480px;
  width: 90%;
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.2);
}

.event-dialog::backdrop {
  background: rgba(0, 0, 0, 0.5);
}

.event-dialog-close {
  position: absolute;
  top: 12px;
  right: 12px;
  background: none;
  border: none;
  font-size: 24px;
  line-height: 1;
  cursor: pointer;
  color: #666;
}

.event-dialog h3 {
  margin: 0 24px 16px 0;
  font-family: "Hiragino Mincho ProN", "Yu Mincho", serif;
  font-size: 20px;
}

.event-dialog-body {
  display: grid;
  grid-template-columns: 90px 1fr;
  gap: 10px 12px;
  margin: 0;
  font-size: 14px;
}

.event-dialog-body dt {
  color: #666;
  font-weight: 600;
}

.event-dialog-body dd {
  margin: 0;
  word-break: break-word;
}

/* 予約フォーム */
.reserve-form {
  margin-top: 20px;
  padding-top: 16px;
  border-top: 1px solid #eee;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

/* hidden属性が付いた時は必ず非表示にする（display:flexの上書きを防ぐ） */
.reserve-form[hidden] {
  display: none;
}

.reserve-form-title {
  margin: 0;
  font-size: 15px;
  color: #333;
}

/* 予約内容の確認画面 */
.reserve-confirm {
  margin-top: 20px;
  padding-top: 16px;
  border-top: 1px solid #eee;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.reserve-confirm[hidden] {
  display: none;
}

.reserve-confirm-body {
  display: grid;
  grid-template-columns: 90px 1fr;
  gap: 10px 12px;
  margin: 0;
  font-size: 14px;
}

.reserve-confirm-body dt {
  color: #666;
  font-weight: 600;
}

.reserve-confirm-body dd {
  margin: 0;
  word-break: break-word;
}

.reserve-confirm-actions {
  display: flex;
  gap: 10px;
  margin-top: 4px;
}

.reserve-confirm-actions .reserve-submit {
  margin-top: 0;
  flex: 1;
}

.reserve-confirm-back {
  flex: 1;
  border: 1px solid #ccc;
  border-radius: 4px;
  background: #fff;
  color: #555;
  padding: 10px 16px;
  font-size: 14px;
  cursor: pointer;
  transition: opacity 0.2s ease;
}

.reserve-confirm-back:hover {
  opacity: 0.75;
}

.reserve-confirm-back:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

.reserve-form label {
  display: flex;
  flex-direction: column;
  gap: 4px;
  font-size: 13px;
  color: #555;
}

.reserve-form input {
  font: inherit;
  padding: 8px 10px;
  border: 1px solid #ccc;
  border-radius: 4px;
  box-sizing: border-box;
}

.reserve-submit {
  margin-top: 4px;
  border: none;
  border-radius: 4px;
  background: #2e8b57;
  color: #fff;
  padding: 10px 16px;
  font-size: 14px;
  cursor: pointer;
  transition: opacity 0.2s ease;
}

.reserve-submit:hover {
  opacity: 0.85;
}

.reserve-submit:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

.reserve-full-notice {
  margin: 20px 0 0;
  padding-top: 16px;
  border-top: 1px solid #eee;
  color: #b51a1a;
  font-size: 14px;
}

.reserve-message {
  margin: 12px 0 0;
  font-size: 13px;
}

.reserve-message.is-success {
  color: #2e8b57;
}

.reserve-message.is-error {
  color: #b51a1a;
}

@media (max-width: 768px) {
  .calendar {
    padding: 0 10px;
  }

  .cal-month-label {
    font-size: 18px;
    min-width: 120px;
  }

  .cal-cell {
    min-height: 80px;
    padding: 4px;
  }

  .cal-event-chip {
    font-size: 9px;
    padding: 3px 4px;
  }

  .event-dialog {
    padding: 20px;
  }
}

/* ==== フッター ==== */
.footer {
  text-align: center;
  padding: 24px 20px;
  border-top: 1px solid #eee;
  color: #999;
  font-size: 12px;
}

.footer p {
  margin: 0;
}