* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: 'Noto Sans JP', -apple-system, BlinkMacSystemFont, sans-serif;
  background: #0a0a0a;
  color: #e0e0e0;
  line-height: 1.8;
  overflow-x: hidden;
}

/* ヘッダー */
header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 30px 60px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: linear-gradient(to bottom, rgba(0,0,0,0.8), transparent);
  transition: all 0.3s ease;
}

header.scrolled {
  padding: 20px 60px;
  background: rgba(10,10,10,0.95);
  backdrop-filter: blur(10px);
}

.logo {
  font-size: 28px;
  font-weight: 300;
  letter-spacing: 3px;
  color: #fff;
}

nav a {
  color: #e0e0e0;
  text-decoration: none;
  margin-left: 40px;
  font-size: 14px;
  letter-spacing: 1.5px;
  transition: color 0.3s ease;
}

nav a:hover {
  color: #fff;
}

/* ヒーローセクション */
.hero {
  height: 100vh;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, #1a1a1a 0%, #2d2d2d 100%);
  background-size: cover;
  background-position: center;
}

.hero-bg::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0,0,0,0.4);
}

.hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  padding: 40px;
}

.hero h1 {
  font-size: 72px;
  font-weight: 200;
  letter-spacing: 12px;
  margin-bottom: 20px;
  color: #fff;
  text-shadow: 2px 2px 20px rgba(0,0,0,0.5);
}

.hero-subtitle {
  font-size: 18px;
  letter-spacing: 4px;
  color: #d0d0d0;
  font-weight: 300;
}

.hero-info {
  margin-top: 60px;
  font-size: 14px;
  letter-spacing: 2px;
  color: #b0b0b0;
}

/* セクション共通 */
section {
  padding: 120px 60px;
  max-width: 1400px;
  margin: 0 auto;
}

.section-title {
  font-size: 48px;
  font-weight: 300;
  letter-spacing: 8px;
  margin-bottom: 80px;
  text-align: center;
  color: #fff;
}

.section-subtitle {
  font-size: 16px;
  letter-spacing: 3px;
  color: #888;
  text-align: center;
  margin-top: -60px;
  margin-bottom: 80px;
}

/* コンセプトセクション */
.concept {
  background: #0f0f0f;
}

.concept-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}

.concept-text h3 {
  font-size: 32px;
  font-weight: 300;
  letter-spacing: 4px;
  margin-bottom: 30px;
  color: #fff;
}

.concept-text p {
  font-size: 16px;
  line-height: 2;
  color: #b0b0b0;
  margin-bottom: 20px;
}

/*.concept-image {
  width: 100%;
  height: 500px;
  background: linear-gradient(45deg, #2a2a2a, #1a1a1a);
  border-radius: 2px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #555;
  font-size: 14px;
  letter-spacing: 2px;
}*/

.concept-image img {
  width: 600px;
  height: auto;
}

/* 特徴セクション */
.features {
  background: #0a0a0a;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 60px;
  margin-top: 80px;
}

.feature-item {
  text-align: center;
  padding: 40px 20px;
  background: #111;
  border: 1px solid #222;
  transition: all 0.4s ease;
}

.feature-item:hover {
  background: #151515;
  border-color: #333;
  transform: translateY(-5px);
}

.feature-icon {
  width: 80px;
  height: 80px;
  margin: 0 auto 30px;
  background: linear-gradient(135deg, #2a2a2a, #1a1a1a);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 32px;
}

.feature-item h4 {
  font-size: 20px;
  font-weight: 400;
  letter-spacing: 2px;
  margin-bottom: 20px;
  color: #fff;
}

.feature-item p {
  font-size: 14px;
  color: #888;
  line-height: 1.8;
}

/* 部屋一覧 */
.rooms {
  background: #0f0f0f;
}

.rooms-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
  gap: 40px;
}

.room-card {
  background: #111;
  border: 1px solid #222;
  overflow: hidden;
  transition: all 0.4s ease;
  cursor: pointer;
}

.room-card:hover {
  border-color: #444;
  transform: scale(1.02);
}

.room-image {
  width: 100%;
  height: 300px;
  background: linear-gradient(135deg, #2a2a2a, #1a1a1a);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #555;
  font-size: 14px;
  position: relative;
  overflow: hidden;
}

.room-image::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.1), transparent);
  transition: left 0.6s ease;
}

.room-card:hover .room-image::before {
  left: 100%;
}

.room-info {
  padding: 30px;
}

.room-number {
  font-size: 24px;
  font-weight: 300;
  letter-spacing: 3px;
  margin-bottom: 15px;
  color: #fff;
}

.room-details {
  display: flex;
  gap: 20px;
  margin-bottom: 20px;
  color: #888;
  font-size: 14px;
  letter-spacing: 1px;
}

.room-status {
  display: inline-block;
  padding: 8px 16px;
  background: #1a1a1a;
  border: 1px solid #333;
  font-size: 12px;
  letter-spacing: 2px;
  color: #aaa;
}

.room-status.available {
  border-color: #4a4a4a;
  color: #d0d0d0;
}

/* 物件詳細 */
.details {
  background: #0a0a0a;
}

.details-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  margin-top: 60px;
}

.detail-group h4 {
  font-size: 20px;
  font-weight: 400;
  letter-spacing: 3px;
  margin-bottom: 30px;
  color: #fff;
  border-bottom: 1px solid #222;
  padding-bottom: 15px;
}

.detail-item {
  display: flex;
  padding: 15px 0;
  border-bottom: 1px solid #151515;
}

.detail-label {
  flex: 0 0 140px;
  color: #888;
  font-size: 14px;
  letter-spacing: 1px;
}

.detail-value {
  flex: 1;
  color: #d0d0d0;
  font-size: 14px;
}

/* 建築家 */
.architect {
  background: #0f0f0f;
  text-align: center;
}

.architect-content {
  background: #111;
  padding: 60px;
  text-align: center;
}

/* アクセス */
.access {
  background: #0f0f0f;
}

.access-content {
  background: #111;
  border: 1px solid #222;
  padding: 60px;
  text-align: center;
}

.access-content p {
  font-size: 18px;
  letter-spacing: 2px;
  color: #b0b0b0;
  margin: 20px 0;
}

.access-content .station {
  font-size: 24px;
  color: #fff;
  margin: 10px 0;
}

/* お問い合わせ */
.contact {
  background: #0a0a0a;
  text-align: center;
}

.contact-button {
  display: inline-block;
  padding: 20px 60px;
  background: transparent;
  border: 2px solid #444;
  color: #fff;
  text-decoration: none;
  font-size: 16px;
  letter-spacing: 3px;
  transition: all 0.3s ease;
  margin-top: 40px;
}

.contact-button:hover {
  background: #fff;
  color: #0a0a0a;
  border-color: #fff;
}

/* フッター */
footer {
  background: #000;
  padding: 60px;
  text-align: center;
  border-top: 1px solid #1a1a1a;
}

footer p {
  color: #555;
  font-size: 12px;
  letter-spacing: 2px;
}

/* レスポンシブ */
@media (max-width: 768px) {
  header {
    padding: 20px 30px;
  }

  .hero h1 {
    font-size: 36px;
    letter-spacing: 6px;
  }

  .hero-subtitle {
    font-size: 14px;
  }

  section {
    padding: 80px 30px;
  }

  .section-title {
    font-size: 32px;
    letter-spacing: 4px;
  }

  .concept-content {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .features-grid {
    grid-template-columns: 1fr;
    gap: 30px;
  }

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

  .details-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  nav {
    display: none;
  }
}

/* スクロールアニメーション */
.fade-in {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}

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