body {
    font-family: "Yu Gothic", sans-serif;
    margin: 0;
    background: #f7f7f7;
    color: #333;
    line-height: 1.7;
}

.site-header {
  max-width: 900px;
  margin: 0 auto;
  display: flex;
  justify-content: flex-end;
  align-items: center;
}

.site-header-link {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  text-decoration: none;
  color: inherit;
}


main {
    max-width: 900px;
    margin: 40px auto;
    padding: 0 20px;
}

h2 {
    border-left: 6px solid #0078d4;
    padding-left: 10px;
    margin-bottom: 30px;
}

p.lead {
    font-size: 1.05rem;
    margin-bottom: 30px;
    white-space: pre-line; /* 改行をそのまま反映 */
}

.gallery {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 20px;
}

.photo-item {
    width: 100%;
    box-sizing: border-box;
}

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

.caption {
    font-size: 0.9rem;
    color: #555;
    margin-top: 8px;
}

.day-nav {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin-top: 40px;
    flex-wrap: wrap;
}

.nav-btn {
    display: inline-block;
    padding: 10px 18px;
    background: #2a5abf;
    color: #fff;
    border-radius: 6px;
    text-decoration: none;
    font-size: 0.9rem;
    transition: background 0.2s;
}

.nav-btn:hover {
    background: #1f4690;
}

.home-btn {
    background: #555;
}

.home-btn:hover {
    background: #333;
}

/* スマホでは縦並び */
@media (max-width: 768px) {
    .day-nav {
        flex-direction: column;
        gap: 12px;
    }
}

/* --- フッターの統一CSS --- */
footer {
    text-align: center;
    padding: 40px 0;
    color: #666;
    font-size: 0.9rem;
    line-height: 1.6;
    border-top: 1px solid #ddd;
    margin-top: 60px;
}

.footer-icon {
  width: 22px;
  opacity: 0.45;
  float: center;
  margin: 0 0 0.3rem 0.5rem;
}