body {
  font-family: sans-serif;
  margin: 0;
  padding: 0;
  background: #fff;
  color: #333;
}
header {
  background: #111;
  color: white;
  padding: 1em;
  text-align: center;
}
nav {
  text-align: center;
  margin-top: 0.5em;
}
nav a {
  margin: 0 1em;
  color: #fff;
  text-decoration: underline;
}
main {
  padding: 1em;
  max-width: 960px;
  margin: auto;
}
.section {
  margin: 2em 0;
}
.map-container iframe {
  width: 100%;
  height: 300px;
  border: none;
}
img {
  max-width: 100%;
  height: auto;
  display: block;
}
form input, form textarea {
  width: 100%;
  max-width: 600px;
  padding: 0.8em;
  margin: 0.5em 0;
  border: 1px solid #ccc;
  border-radius: 4px;
  font-size: 1rem;
}
form button {
  background-color: #333;
  color: white;
  padding: 0.8em 2em;
  border: none;
  border-radius: 4px;
  font-size: 1rem;
}
form button:hover {
  background-color: #555;
}

/* Responsive layout */
@media (max-width: 768px) {
  header h1 {
    font-size: 1.5em;
  }
  nav a {
    display: inline-block;
    margin: 0.2em;
    font-size: 0.9em;
  }
  main {
    padding: 0.5em;
  }
  .section h2 {
    font-size: 1.2em;
  }
}

header img {
  height: 80px;
}

.facility-gallery {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  justify-content: center;
  margin-top: 1em;
}
.facility-gallery img {
  width: 48%;
  max-width: 400px;
  height: auto;
  border-radius: 8px;
}


@media (max-width: 600px) {
  .section img {
    width: 100%;
    height: auto;
  }

  .gallery {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
  }

  .gallery img {
    width: calc(50% - 10px);
    height: auto;
  }

  form input, form textarea, form select {
    width: 100%;
    font-size: 1rem;
  }

  .popup-content {
    width: 90%;
  }
}


/* ロゴ中央配置 */
.logo {
    display: block;
    margin: 0 auto;
    max-width: 200px;
}


header {
    position: relative; /* for reserve-btn absolute positioning */
}


/* 更新: 予約ボタンのスタイル */
.reserve-wrapper {
  text-align: center;
  margin-top: 20px;
}

.reserve-btn {
  display: inline-block;
  padding: 14px 28px;
  font-size: 18px;
  background-color: #d4af37; /* ゴールド */
  color: white;
  border-radius: 8px;
  text-decoration: none;
  font-weight: bold;
  box-shadow: 0 4px 8px rgba(0,0,0,0.2);
}

.reserve-btn:hover {
  opacity: 0.9;
}
/* === モバイル最適化追加スタイル === */
img {
  max-width: 100%;
  height: auto;
}

.section {
  padding: 16px;
}

input, textarea, button {
  width: 100%;
  box-sizing: border-box;
  margin-bottom: 12px;
}

@media (max-width: 768px) {
  h1 {
    font-size: 22px;
  }
  .reserve-btn {
    font-size: 16px;
    padding: 10px 20px;
  }
}