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

/* -------------------
   全体フォントと背景
------------------- */
body {
  font-family: 'Zen Maru Gothic', 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  background: #f0f0f0;
  color: #333;
  line-height: 1.6;

  /* ページ読み込みフェードイン用 */
  opacity: 0;
  transition: opacity 0.6s ease-in-out;
}

body.fade-in {
  opacity: 1;
}

/* -------------------
   ナビゲーションバー
------------------- */
nav {
  background-color: #333;
  padding: 1rem 2rem;
  position: sticky;
  top: 0;
  z-index: 100;
  opacity: 0;
  transform: translateY(-10px);
  transition: opacity 0.6s ease-in-out 0.1s, transform 0.6s ease-in-out 0.1s;
}

body.fade-in nav {
  opacity: 1;
  transform: translateY(0);
}

nav ul {
  list-style: none;
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 1rem;
  padding: 0;
  margin: 0;
}

nav ul li a {
  display: inline-block;
  padding: 0.5rem 1rem;
  color: white;
  text-decoration: none;
  font-weight: bold;
  font-size: 1rem;
  white-space: nowrap;
  border-radius: 5px;
  transition: all 0.3s ease;
}

nav ul li a:hover,
nav ul li a:focus {
  background-color: #ff6600;
  color: white;
  transform: scale(1.1) rotate(-2deg);
}

/* -------------------
   メイン
------------------- */
main {
  max-width: 900px;
  margin: 2rem auto;
  background: white;
  padding: 2rem;
  border-radius: 10px;
  box-shadow: 0 4px 8px rgba(0,0,0,0.1);
  opacity: 0;
  transform: translateY(10px);
  transition: opacity 0.6s ease-in-out 0.2s, transform 0.6s ease-in-out 0.2s;
}

body.fade-in main {
  opacity: 1;
  transform: translateY(0);
}

/* -------------------
   メンバー・ギャラリー順番フェード
------------------- */
.member {
  opacity: 0;
  transform: translateY(10px);
  transition: opacity 0.6s ease-in-out, transform 0.6s ease-in-out;
}

body.fade-in .member {
  opacity: 1;
  transform: translateY(0);
}

/* 個別遅延 */
.member:nth-child(1) { transition-delay: 0.3s; }
.member:nth-child(2) { transition-delay: 0.4s; }
.member:nth-child(3) { transition-delay: 0.5s; }
.member:nth-child(4) { transition-delay: 0.6s; }
.member:nth-child(5) { transition-delay: 0.7s; }
.member:nth-child(6) { transition-delay: 0.8s; }
.member:nth-child(7) { transition-delay: 0.9s; }
.member:nth-child(8) { transition-delay: 1s; }

/* -------------------
   ギャラリー
------------------- */
.gallery {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 1rem;
  margin-top: 1rem;
}

.gallery img {
  width: 100%;
  height: 180px;
  object-fit: cover;
  border-radius: 8px;
  box-shadow: 0 2px 6px rgba(0,0,0,0.1);
  transition: transform 0.4s ease, box-shadow 0.4s ease;
  cursor: pointer;
}

.gallery img:hover {
  transform: scale(1.05) translateY(-5px);
  box-shadow: 0 6px 12px rgba(0,0,0,0.2);
}

/* -------------------
   フッター
------------------- */
footer {
  text-align: center;
  padding: 1rem;
  margin-top: 3rem;
  color: #666;
  font-size: 0.9rem;
  opacity: 0;
  transform: translateY(10px);
  transition: opacity 0.6s ease-in-out 0.3s, transform 0.6s ease-in-out 0.3s;
}

body.fade-in footer {
  opacity: 1;
  transform: translateY(0);
}

/* -------------------
   スマホ対応
------------------- */
@media (max-width: 600px) {
  main {
    margin: 1rem;
    padding: 1rem;
  }

  h1, h2 {
    font-size: 1.4rem;
  }

  p {
    font-size: 1rem;
  }

  .gallery {
    grid-template-columns: 1fr;
  }

  .gallery img {
    height: auto;
  }

  nav ul li a {
    font-size: 0.75rem;
    padding: 0.3rem 0.5rem;
  }
}