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

body {
    font-family: 'Segoe UI', 'Yu Gothic', 'Hiragino Sans', sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #f8f9fa;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* ヘッダー */
.header {
    background-color: #fff;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 20px;
}

.logo a {
    text-decoration: none;
}

.logo h1 {
    font-size: 1.4rem;
    color: #FF69B4;
    font-weight: 700;
    transition: opacity 0.2s;
}

.logo a:hover h1 {
    opacity: 0.75;
}

/* ハンバーガーボタン（常に表示） */
.hamburger {
    display: flex;
    flex-direction: column;
    justify-content: center;
    background: none;
    border: none;
    cursor: pointer;
    padding: 6px;
    gap: 5px;
    border-radius: 6px;
    transition: background 0.2s;
}

.hamburger:hover {
    background: #f3e8ff;
}

.hamburger span {
    display: block;
    width: 24px;
    height: 2px;
    background-color: #555;
    border-radius: 2px;
    transition: transform 0.3s, opacity 0.3s, width 0.3s;
    transform-origin: center;
}

/* ✕ アニメーション */
.hamburger.active span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
}

.hamburger.active span:nth-child(2) {
    opacity: 0;
    width: 0;
}

.hamburger.active span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
}

/* ナビゲーション（常に折りたたみ） */
.nav {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background-color: #fff;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.1);
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.35s ease-out;
    border-top: 2px solid #f3e8ff;
}

.nav.active {
    max-height: 400px;
}

.nav ul {
    list-style: none;
    padding: 8px 0 12px;
}

.nav li {
    border-bottom: 1px solid #f5f0ff;
}

.nav li:last-child {
    border-bottom: none;
}

.nav a {
    display: block;
    padding: 14px 24px;
    text-decoration: none;
    color: #444;
    font-weight: 500;
    font-size: 0.95rem;
    transition: background 0.2s, color 0.2s, padding-left 0.2s;
}

.nav a:hover {
    color: #FF69B4;
    background: #fdf4ff;
    padding-left: 32px;
}

/* メインビジュアル */
.hero {
    background: linear-gradient(135deg, #667eea 0%, #9b59b6 50%, #764ba2 100%);
    color: white;
    padding: 120px 0;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='60' height='60'%3E%3Ccircle cx='30' cy='30' r='2' fill='rgba(255,255,255,0.1)'/%3E%3C/svg%3E") repeat;
}

.hero-content {
    position: relative;
}

.hero-content h2 {
    font-size: 2.6rem;
    font-weight: 700;
    margin-bottom: 1.2rem;
    line-height: 1.4;
    text-shadow: 0 2px 12px rgba(0, 0, 0, 0.2);
}

.hero-content p {
    font-size: 1.15rem;
    opacity: 0.9;
}

/* 画像ストリップ */
.photo-strip {
    background: #1a1028;
    padding: 0;
    overflow: hidden;
    position: relative;
}

.photo-strip::before,
.photo-strip::after {
    content: '';
    position: absolute;
    top: 0;
    bottom: 0;
    width: 80px;
    z-index: 2;
    pointer-events: none;
}

.photo-strip::before {
    left: 0;
    background: linear-gradient(to right, #1a1028, transparent);
}

.photo-strip::after {
    right: 0;
    background: linear-gradient(to left, #1a1028, transparent);
}

.photo-strip-track {
    display: flex;
    gap: 12px;
    padding: 16px 0;
    width: max-content;
    animation: stripScroll 28s linear infinite;
}

.photo-strip-track:hover {
    animation-play-state: paused;
}

@keyframes stripScroll {
    from { transform: translateX(0); }
    to   { transform: translateX(-50%); }
}

.strip-item {
    flex-shrink: 0;
    width: 260px;
    height: 170px;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.4);
    transition: transform 0.3s;
}

.strip-item:hover {
    transform: scale(1.04);
}

.strip-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

/* 告知セクション */
.announcement {
    padding: 3rem 0;
    background-color: #fdf6fb;
}

.announcement-box {
    background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    color: white;
    padding: 2.5rem 2rem;
    border-radius: 16px;
    text-align: center;
    box-shadow: 0 8px 32px rgba(240, 147, 251, 0.35);
}

.announcement-box h3 {
    font-size: 1.8rem;
    font-weight: 700;
    margin-bottom: 0.75rem;
    text-shadow: 0 1px 6px rgba(0, 0, 0, 0.1);
}

.announcement-box p {
    margin-bottom: 1.5rem;
    font-size: 1rem;
    opacity: 0.92;
}

.announcement-box a {
    display: inline-block;
    padding: 0.8rem 2.2rem;
    background: white;
    color: #f5576c;
    font-weight: 700;
    font-size: 0.95rem;
    text-decoration: none;
    border-radius: 50px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    transition: transform 0.2s, box-shadow 0.2s;
}

.announcement-box a:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.2);
}

/* ギャラリー */
.gallery {
    padding: 4rem 0;
    background-color: #f8f9fa;
}

.gallery-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.gallery-item {
    text-align: center;
    background: white;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s;
}

.gallery-item:hover {
    transform: translateY(-5px);
}

.gallery-item img {
    width: 100%;
    height: auto;
    display: block;
}

.gallery-item p {
    padding: 1rem;
    font-weight: bold;
    font-size: 1.2rem;
}

/* コンテンツカード */
.content-cards {
    padding: 4rem 0 5rem;
    background-color: #fdf6fb;
}

.section-header {
    text-align: center;
    margin-bottom: 2.5rem;
}

.section-header h3 {
    font-size: 1.4rem;
    font-weight: 700;
    color: #5b3a8e;
    display: inline-block;
    border-bottom: 3px solid #c084d4;
    padding-bottom: 6px;
    letter-spacing: 0.05em;
}

.cards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
}

.card {
    background: white;
    border-radius: 16px;
    padding: 2.5rem 2rem;
    text-align: center;
    box-shadow: 0 4px 20px rgba(200, 130, 210, 0.1);
    transition: transform 0.3s, box-shadow 0.3s;
    border-top: 4px solid #c084d4;
}

.card:hover {
    transform: translateY(-6px);
    box-shadow: 0 16px 36px rgba(200, 130, 210, 0.2);
}

.card-icon {
    font-size: 2.8rem;
    margin-bottom: 1rem;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 72px;
    height: 72px;
    background: linear-gradient(135deg, #f3e8ff, #fce7f3);
    border-radius: 50%;
    overflow: hidden;
}
.card-icon img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.card h3 {
    font-size: 1.5rem;
    margin-bottom: 1.2rem;
    color: #333;
    font-weight: 700;
}

.card p {
    margin-bottom: 1.5rem;
    color: #666;
}

.card-button {
    display: inline-block;
    padding: 0.75rem 2rem;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    text-decoration: none;
    border-radius: 50px;
    font-weight: 600;
    font-size: 0.9rem;
    transition: transform 0.2s, box-shadow 0.2s;
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.35);
}

.card-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(102, 126, 234, 0.45);
}

/* フッター */
.footer {
    background: linear-gradient(135deg, #2a1040 0%, #1a2a4a 100%);
    color: #e0d8f0;
    padding: 3rem 0 2rem;
    margin-top: auto;
}

.footer-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1.5rem;
}

.footer-links {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 0.4rem 0;
}

.footer-links a {
    color: #d0c8e8;
    text-decoration: none;
    font-size: 0.9rem;
    padding: 4px 14px;
    border-right: 1px solid rgba(255, 255, 255, 0.2);
    transition: color 0.2s;
    white-space: nowrap;
}

.footer-links a:last-child {
    border-right: none;
}

.footer-links a:hover {
    color: #FF69B4;
}

.social-links {
    display: flex;
    gap: 1rem;
}

.social-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.1);
    color: #e0d8f0;
    transition: background 0.2s, color 0.2s;
}

.social-link:hover {
    background: #FF69B4;
    color: white;
}

.footer-copy {
    font-size: 0.78rem;
    color: #9a90b8;
    text-align: center;
}

/* レスポンシブデザイン */
@media (max-width: 768px) {
    .hero {
        padding: 80px 0;
    }

    .hero-content h2 {
        font-size: 1.6rem;
    }

    .hero-content p {
        font-size: 1rem;
    }

    .announcement-box h3 {
        font-size: 1.4rem;
    }

    .gallery-grid {
        grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    }

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