/* 全体 */
body {
  margin: 0;
  padding: 60px 40px;
  font-family: "Hiragino Mincho ProN", "Yu Mincho", serif;
  background: #0e0e0e;
  color: #e6e6e6;
  line-height: 1.8;
}

/* 見出し */
h1 {
  font-size: 22px;
  font-weight: normal;
  letter-spacing: 0.08em;
  margin-bottom: 40px;
}

h2 {
  font-size: 22px;
  font-weight: normal;
  letter-spacing: 0.08em;
}

/* トップ：部屋一覧 */
.rooms {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 24px;
}

.room-card {
  position: relative;
  height: 180px;
  background-size: cover;
  background-position: center;
  color: #fff;
  text-decoration: none;
  filter: grayscale(35%);
  transition: filter 0.3s ease, transform 0.3s ease;
}

.room-card::after {
  content: "";
  position: absolute;
  inset: 0;
  background: rgba(0,0,0,0.4);
}

.room-card span {
  position: absolute;
  bottom: 16px;
  left: 16px;
  z-index: 2;
  font-size: 18px;
  letter-spacing: 0.1em;
}

.room-card:hover {
  filter: grayscale(0%);
  transform: translateY(-2px);
}

/* 部屋ページ */
.hero {
  height: 55vh;
  background-size: cover;
  background-position: center;
  position: relative;
}

.hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background: rgba(0,0,0,0.45);
}

.hero h2 {
  position: absolute;
  bottom: 24px;
  left: 24px;
  z-index: 2;
}

/* チャット（仮） */
.chat {
  padding: 32px 10px;
  color: #aaa;
}

/* スマホ */
@media screen and (max-width: 600px) {
  body {
    padding: 40px 20px;
  }
}