/* テンプレート41: 高級感ブラック＋ゴールド */
@import url('https://fonts.googleapis.com/css2?family=Cormorant+Garamond:wght@400;600;700&family=Noto+Serif+JP:wght@400;600&display=swap');

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

body {
    font-family: 'Noto Serif JP', serif;
    font-size: 16px;
    line-height: 2;
    color: #d4af37;
    background: #0a0a0a;
    min-height: 100vh;
}

/* ヘッダー */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    padding: 25px 50px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    z-index: 100;
    transition: all 0.4s;
}

.site-header.scrolled {
    background: rgba(10, 10, 10, 0.95);
    padding: 15px 50px;
}

.logo {
    font-family: 'Cormorant Garamond', serif;
    font-size: 1.8rem;
    font-weight: 700;
    color: #d4af37;
    letter-spacing: 0.15em;
}

.menu-toggle {
    width: 40px;
    height: 30px;
    cursor: pointer;
    position: relative;
    z-index: 1001;
}

.menu-toggle span {
    display: block;
    position: absolute;
    width: 100%;
    height: 2px;
    background: #d4af37;
    transition: all 0.4s;
}

.menu-toggle span:nth-child(1) { top: 0; }
.menu-toggle span:nth-child(2) { top: 14px; }
.menu-toggle span:nth-child(3) { top: 28px; }

.menu-toggle.active span:nth-child(1) { transform: rotate(45deg); top: 14px; }
.menu-toggle.active span:nth-child(2) { opacity: 0; }
.menu-toggle.active span:nth-child(3) { transform: rotate(-45deg); top: 14px; }

/* フルスクリーンメニュー */
.fullscreen-nav {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    background: linear-gradient(135deg, #0a0a0a 0%, #1a1a1a 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: all 0.5s ease;
    z-index: 999;
}

.fullscreen-nav.open {
    opacity: 1;
    visibility: visible;
}

.fullscreen-nav ul {
    list-style: none;
    text-align: center;
}

.fullscreen-nav li {
    margin: 20px 0;
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.5s ease;
}

.fullscreen-nav.open li {
    opacity: 1;
    transform: translateY(0);
}

.fullscreen-nav.open li:nth-child(1) { transition-delay: 0.1s; }
.fullscreen-nav.open li:nth-child(2) { transition-delay: 0.2s; }
.fullscreen-nav.open li:nth-child(3) { transition-delay: 0.3s; }
.fullscreen-nav.open li:nth-child(4) { transition-delay: 0.4s; }
.fullscreen-nav.open li:nth-child(5) { transition-delay: 0.5s; }
.fullscreen-nav.open li:nth-child(6) { transition-delay: 0.6s; }
.fullscreen-nav.open li:nth-child(7) { transition-delay: 0.7s; }

.fullscreen-nav a {
    font-family: 'Cormorant Garamond', serif;
    font-size: 2.5rem;
    color: #d4af37;
    text-decoration: none;
    letter-spacing: 0.2em;
    transition: all 0.3s;
    display: inline-block;
}

.fullscreen-nav a:hover {
    color: #fff;
    transform: scale(1.1);
}

/* ヒーロー */
.hero-section {
    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%;
}

.hero-bg img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    filter: brightness(0.3);
}

.hero-content {
    position: relative;
    z-index: 1;
    text-align: center;
    padding: 0 30px;
}

.hero-title {
    font-family: 'Cormorant Garamond', serif;
    font-size: 4rem;
    font-weight: 300;
    color: #fff;
    letter-spacing: 0.2em;
    margin-bottom: 20px;
    opacity: 0;
    animation: fadeIn 1.5s ease forwards;
}

.hero-line {
    width: 100px;
    height: 1px;
    background: linear-gradient(90deg, transparent, #d4af37, transparent);
    margin: 30px auto;
    opacity: 0;
    animation: fadeIn 1.5s ease 0.5s forwards;
}

.hero-subtitle {
    font-size: 1rem;
    color: #d4af37;
    letter-spacing: 0.3em;
    opacity: 0;
    animation: fadeIn 1.5s ease 1s forwards;
}

@keyframes fadeIn {
    to { opacity: 1; }
}

/* メインコンテンツ */
.main-content {
    padding: 100px 0;
}

.container {
    max-width: 900px;
    margin: 0 auto;
    padding: 0 50px;
}

.content-block {
    margin-bottom: 100px;
    opacity: 0;
    transform: translateY(50px);
    transition: all 1s ease;
}

.content-block.visible {
    opacity: 1;
    transform: translateY(0);
}

.content-block h2 {
    font-family: 'Cormorant Garamond', serif;
    font-size: 2rem;
    font-weight: 400;
    color: #d4af37;
    letter-spacing: 0.15em;
    margin-bottom: 30px;
    padding-bottom: 20px;
    border-bottom: 1px solid rgba(212, 175, 55, 0.3);
}

.content-block p {
    color: #999;
    font-size: 1rem;
    line-height: 2.2;
}

.content-image {
    margin: 40px 0;
    overflow: hidden;
}

.content-image img {
    width: 100%;
    height: auto;
    filter: grayscale(30%);
    transition: all 0.5s;
}

.content-image:hover img {
    filter: grayscale(0);
    transform: scale(1.02);
}

/* フッター */
.site-footer {
    border-top: 1px solid rgba(212, 175, 55, 0.2);
    padding: 60px 50px;
    text-align: center;
}

.footer-nav {
    margin-bottom: 30px;
}

.footer-nav a {
    color: #d4af37;
    text-decoration: none;
    margin: 0 20px;
    font-size: 0.85rem;
    letter-spacing: 0.15em;
    transition: color 0.3s;
}

.footer-nav a:hover { color: #fff; }

.footer-copy {
    color: #666;
    font-size: 0.8rem;
    letter-spacing: 0.1em;
}

/* サイトマップ */
.sitemap-list { list-style: none; }
.sitemap-list li { margin-bottom: 20px; padding-left: 30px; position: relative; }
.sitemap-list li::before { content: '—'; position: absolute; left: 0; color: #d4af37; }
.sitemap-list a { color: #d4af37; text-decoration: none; letter-spacing: 0.1em; }
.sitemap-list a:hover { color: #fff; }

/* トップへ戻る */
.back-to-top {
    display: none;
    position: fixed;
    bottom: 40px;
    right: 40px;
    width: 50px;
    height: 50px;
    background: transparent;
    border: 1px solid #d4af37;
    color: #d4af37;
    cursor: pointer;
    font-size: 1rem;
    transition: all 0.3s;
    z-index: 998;
}

.back-to-top:hover {
    background: #d4af37;
    color: #0a0a0a;
}

@media (max-width: 768px) {
    .site-header { padding: 20px 25px; }
    .logo { font-size: 1.3rem; }
    .hero-title { font-size: 2.5rem; }
    .fullscreen-nav a { font-size: 1.8rem; }
    .container { padding: 0 25px; }
    .content-block h2 { font-size: 1.5rem; }
}