/* シンプルなレイアウト */
.site-header { padding: 1rem; border-bottom: 1px solid #eee; display: flex; align-items: center; justify-content: space-between; gap: 1rem; }
.site-branding { display: flex; align-items: center; gap: 1rem; }
.site-title { font-weight: 700; font-size: 1.25rem; }
.site-description { margin: 0; font-size: .9rem; opacity: .8; }
.main-navigation ul { list-style: none; margin: 0; padding: 0; display: flex; gap: 1rem; }
.site-content { max-width: 960px; margin: 2rem auto; padding: 0 1rem; }
.entry-title { margin: .5rem 0 1rem; }
.post-thumbnail img { width: 100%; height: auto; display: block; }
.site-footer { border-top: 1px solid #eee; padding: 2rem 1rem; text-align: center; }
.widget { margin-bottom: 2rem; }
.widget-title { font-size: 1.1rem; margin-bottom: .5rem; }
.search-form { display: flex; gap: .5rem; }
.search-field { flex: 1; padding: .5rem .75rem; border: 1px solid #ccc; border-radius: 4px; }
.search-submit { padding: .5rem .75rem; border: 1px solid #ccc; background: #f6f6f6; border-radius: 4px; cursor: pointer; }