/* --- 前回の共通設定はそのまま保持 --- */
* { box-sizing: border-box; margin: 0; padding: 0; }

body {
    font-family: 'Noto Sans JP', sans-serif;
    background-color: #f8fafc;
    color: #333;
    line-height: 1.8;
    padding-top: 90px;
}

.main-header {
    position: fixed; top: 0; left: 0; width: 100%; height: 90px;
    background: #fff; z-index: 1000; display: flex; align-items: center;
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
}

.header-container {
    width: 90%; max-width: 1200px; margin: 0 auto;
    display: flex; justify-content: space-between; align-items: center;
}

.logo img { height: 75px; width: auto; vertical-align: middle; }

.main-nav ul { display: flex; list-style: none; gap: 25px; align-items: center; }
.main-nav a { text-decoration: none; color: #333; font-weight: bold; font-size: 0.95rem; }
.nav-contact { border: 2px solid #38b6ff; padding: 8px 20px; border-radius: 50px; color: #38b6ff !important; }

/* 準備中メインエリア */
.maintenance-wrapper {
    min-height: calc(100vh - 150px);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 40px 20px;
}

.maintenance-content {
    text-align: center;
    background: #fff;
    padding: 60px 40px;
    border-radius: 16px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.05);
    max-width: 700px; /* 少し広めに設定 */
    width: 100%;
}

.status-badge {
    display: inline-block;
    color: #38b6ff;
    font-weight: bold;
    letter-spacing: 0.1em;
    font-size: 0.9rem;
    margin-bottom: 15px;
}

h2 { font-size: 1.8rem; margin-bottom: 20px; }
.mb-40 { margin-bottom: 40px; color: #666; }

/* イベント誘導セクション */
.event-navigation {
    margin-bottom: 50px;
    padding-top: 30px;
    border-top: 1px dashed #eee;
}

.event-navigation h3 {
    font-size: 1.2rem;
    color: #333;
    margin-bottom: 25px;
}

.event-links {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

.event-card {
    display: block;
    text-decoration: none;
    background: #fdfdfd;
    border: 1px solid #eee;
    padding: 25px 15px;
    border-radius: 12px;
    transition: 0.3s;
}

.event-card:hover {
    transform: translateY(-5px);
    border-color: #38b6ff;
    box-shadow: 0 5px 15px rgba(56, 182, 255, 0.1);
}

.event-date {
    display: block;
    font-size: 0.75rem;
    color: #38b6ff;
    font-weight: bold;
    margin-bottom: 10px;
}

.event-card h4 {
    color: #333;
    font-size: 1rem;
    margin-bottom: 15px;
}

.view-more {
    font-size: 0.85rem;
    color: #888;
    text-decoration: underline;
}

.btn-back {
    display: inline-block;
    background-color: #38b6ff;
    color: #fff;
    padding: 14px 40px;
    border-radius: 50px;
    text-decoration: none;
    font-weight: bold;
    transition: 0.3s;
}

.simple-footer { padding: 20px; text-align: center; font-size: 0.8rem; color: #999; }

/* スマホ対応 */
@media (max-width: 768px) {
    .menu-toggle { display: flex; flex-direction: column; justify-content: space-between; width: 30px; height: 22px; background: none; border: none; cursor: pointer; }
    .menu-toggle span { display: block; width: 100%; height: 3px; background: #38b6ff; transition: 0.3s; }
    .main-nav { position: fixed; top: 0; right: -100%; width: 75%; height: 100vh; background: rgba(255, 255, 255, 0.98); z-index: 1500; display: flex; flex-direction: column; justify-content: center; align-items: center; transition: 0.4s; }
    .main-nav.active { right: 0; }
    .main-nav ul { flex-direction: column; gap: 30px; }
    .menu-toggle.active span:nth-child(1) { transform: translateY(9.5px) rotate(45deg); }
    .menu-toggle.active span:nth-child(2) { opacity: 0; }
    .menu-toggle.active span:nth-child(3) { transform: translateY(-9.5px) rotate(-45deg); }

    .event-links { grid-template-columns: 1fr; } /* スマホでは縦並び */
    .maintenance-content { padding: 40px 20px; }
}