:root {
    --primary-color: #1a2530; /* 深いネイビー */
    --accent-color: #d4af37; /* プレミアムなゴールド */
    --text-color: #333333;
    --bg-color: #fcfcfc;
    --font-serif: 'Noto Serif JP', serif;
    --font-sans: 'Noto Sans JP', sans-serif;
}

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

body {
    font-family: var(--font-sans);
    color: var(--text-color);
    background-color: var(--bg-color);
    line-height: 1.8;
}

img {
    max-width: 100%;
    height: auto;
}

.container {
    max-width: 1000px;
    margin: 0 auto;
    padding: 0 20px;
}

/* 共通タイトル */
.section-title {
    font-family: var(--font-serif);
    font-size: 2.5rem;
    text-align: center;
    color: var(--primary-color);
    margin-bottom: 3rem;
    letter-spacing: 0.1em;
}

/* ヒーローセクション */
.hero {
    position: relative;
    height: 100vh;
    min-height: 600px;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    overflow: hidden;
}

.hero-img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    z-index: 0;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(26, 37, 48, 0.7); /* 暗めのオーバーレイ */
    z-index: 1;
}

.hero-content {
    position: relative;
    z-index: 2;
    color: #ffffff;
    padding: 20px;
}

.hero-subtitle {
    font-family: var(--font-sans);
    font-size: 1.1rem;
    letter-spacing: 0.15em;
    color: var(--accent-color);
    margin-bottom: 1rem;
}

.hero-title {
    font-family: var(--font-serif);
    font-size: 3.5rem;
    line-height: 1.4;
    margin-bottom: 1.5rem;
}

.hero-desc {
    font-size: 1.2rem;
    margin-bottom: 2.5rem;
}

/* ボタン */
.btn {
    display: inline-block;
    padding: 15px 40px;
    font-size: 1.1rem;
    font-weight: bold;
    text-decoration: none;
    border-radius: 50px;
    transition: all 0.3s ease;
}

.btn-primary {
    background-color: transparent;
    color: #fff;
    border: 2px solid #fff;
}

.btn-primary:hover {
    background-color: #fff;
    color: var(--primary-color);
}

.btn-accent {
    background-color: var(--accent-color);
    color: #fff;
    box-shadow: 0 4px 15px rgba(212, 175, 55, 0.4);
}

.btn-accent:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(212, 175, 55, 0.6);
}

/* コンセプト */
.concept {
    padding: 100px 0;
    background-color: #fff;
    text-align: center;
}

.concept-text {
    font-family: var(--font-serif);
    font-size: 1.2rem;
    line-height: 2.2;
}

/* 魅力セクション */
.features {
    padding: 100px 0;
    background-color: var(--bg-color);
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.feature-card {
    background: #fff;
    padding: 40px 30px;
    border-radius: 10px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.05);
    position: relative;
    overflow: hidden;
    transition: transform 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-10px);
}

.feature-img {
    width: 100%;
    height: 200px;
    object-fit: cover;
    display: block;
    margin: -40px -30px 24px -30px;
    border-radius: 10px 10px 0 0;
}

.feature-number {
    font-family: var(--font-serif);
    font-size: 4rem;
    color: rgba(212, 175, 55, 0.15);
    position: absolute;
    top: -10px;
    right: 10px;
    font-weight: bold;
}

.feature-card h3 {
    font-family: var(--font-serif);
    font-size: 1.3rem;
    color: var(--primary-color);
    margin-bottom: 20px;
    line-height: 1.5;
}

/* ギャラリー */
.gallery-block {
    padding: 100px 0;
    background-color: #f8f8f8;
}

.gallery-block .section-title {
    margin-bottom: 1rem;
}

.gallery-desc {
    font-size: 0.95rem;
    line-height: 1.9;
    color: var(--text-color);
    margin-bottom: 2rem;
    max-width: 720px;
    margin-left: auto;
    margin-right: auto;
}

.gallery-carousel-wrapper {
    position: relative;
}

.gallery-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    grid-template-rows: repeat(2, auto);
    gap: 24px;
}

.gallery-item {
    overflow: hidden;
    border-radius: 10px;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.08);
    background: #fff;
    aspect-ratio: 1 / 1;
}

.gallery-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    transition: transform 0.3s ease;
}

.gallery-item:hover .gallery-img {
    transform: scale(1.05);
}

/* カルーセルボタン（PCでは非表示） */
.carousel-btn {
    display: none;
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    z-index: 2;
    width: 48px;
    height: 48px;
    border: none;
    border-radius: 50%;
    background: rgba(26, 37, 48, 0.85);
    color: #fff;
    font-size: 1.5rem;
    line-height: 1;
    cursor: pointer;
    transition: background 0.2s ease;
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.2);
}

.carousel-btn:hover {
    background: var(--primary-color);
}

.carousel-prev {
    left: 8px;
}

.carousel-next {
    right: 8px;
}

/* スマホ：カルーセル表示 */
@media (max-width: 768px) {
    .gallery-carousel-wrapper {
        padding: 0 44px;
        overflow: hidden;
    }

    .carousel-btn {
        display: flex;
        align-items: center;
        justify-content: center;
        padding: 0;
    }

    .gallery-grid {
        display: flex;
        flex-wrap: nowrap;
        gap: 0;
        overflow-x: auto;
        overflow-y: hidden;
        scroll-snap-type: x mandatory;
        scroll-behavior: smooth;
        -webkit-overflow-scrolling: touch;
        padding: 8px 0;
        margin: 0 -44px;
        padding-left: 44px;
        padding-right: 44px;
    }

    .gallery-grid .gallery-item {
        flex: 0 0 85%;
        max-width: 85%;
        scroll-snap-align: center;
        margin-right: 16px;
    }

    .gallery-grid .gallery-item:last-child {
        margin-right: 0;
    }

    .gallery-img {
        height: 100%;
    }
}

/* スケジュール */
.schedule {
    padding: 100px 0;
    background-color: #fff;
}

.schedule-dates {
    text-align: center;
    font-weight: bold;
    font-size: 1.2rem;
    margin-bottom: 40px;
}

.timeline {
    max-width: 800px;
    margin: 0 auto;
}

.timeline-item {
    display: flex;
    margin-bottom: 30px;
    background: var(--bg-color);
    padding: 30px;
    border-radius: 8px;
    border-left: 4px solid var(--accent-color);
}

.timeline-day {
    flex: 0 0 120px;
    font-family: var(--font-serif);
    font-size: 1.5rem;
    color: var(--primary-color);
    font-weight: bold;
}

.timeline-day span {
    display: block;
    font-size: 0.9rem;
    font-family: var(--font-sans);
    color: #666;
    margin-top: 5px;
}

.timeline-content {
    list-style: none;
}

.timeline-content li {
    margin-bottom: 15px;
    border-bottom: 1px dashed #ddd;
    padding-bottom: 10px;
}

.timeline-content li:last-child {
    border-bottom: none;
    margin-bottom: 0;
    padding-bottom: 0;
}

.timeline-content strong {
    color: var(--primary-color);
    display: inline-block;
    width: 90px;
}

/* インフォ・料金 */
.info {
    padding: 100px 0;
    background-color: var(--primary-color);
    color: #fff;
}

.info-box {
    max-width: 700px;
    margin: 0 auto;
}

.info-table {
    width: 100%;
    border-collapse: collapse;
    margin-bottom: 40px;
}

.info-table th, .info-table td {
    padding: 20px;
    border-bottom: 1px solid rgba(255,255,255,0.1);
}

.info-table th {
    text-align: left;
    width: 30%;
    font-weight: normal;
    color: var(--accent-color);
}

.price {
    font-size: 1.2rem;
}

.price span {
    font-size: 2.5rem;
    font-family: var(--font-serif);
    font-weight: bold;
    color: var(--accent-color);
}

.cta-wrapper {
    text-align: center;
}

/* フッター */
footer {
    background-color: #111820;
    color: #888;
    text-align: center;
    padding: 30px 0;
    font-size: 0.9rem;
}

/* レスポンシブ */
@media (max-width: 768px) {
    .hero-title { font-size: 2.2rem; }
    .timeline-item { flex-direction: column; }
    .timeline-day { margin-bottom: 20px; }
    .info-table th, .info-table td { display: block; width: 100%; }
    .info-table th { padding-bottom: 5px; border-bottom: none; }
}