/* パンくずリストコンポーネント CSS */

.breadcrumb-nav {
    margin-top: 0.125rem;
    margin-bottom: 0.25rem;
    padding: 0.75rem 1rem;
    background-color: #f5f5f5;
    border-radius: 0.5rem;
    border: 1px solid #e2e8f0;
}

.breadcrumb-nav ol {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 0.25rem;
}

.breadcrumb-nav li {
    display: flex;
    align-items: center;
    max-width: 100%;
}

.breadcrumb-nav a {
    color: #2563eb;
    text-decoration: none;
    padding: 0.25rem 0.5rem;
    border-radius: 0.25rem;
    transition: all 0.2s ease-in-out;
    display: flex;
    align-items: center;
    word-break: break-word;
    max-width: 100%;
}

.breadcrumb-nav a:hover {
    color: #1d4ed8;
    background-color: #eff6ff;
    text-decoration: none;
}

.breadcrumb-nav a:focus {
    outline: 2px solid #3b82f6;
    outline-offset: 2px;
}

.breadcrumb-nav svg {
    flex-shrink: 0;
}

.breadcrumb-nav .separator {
    color: #9ca3af;
    margin: 0 0.5rem;
    flex-shrink: 0;
}

.breadcrumb-nav [aria-current="page"] {
    color: #111827;
    font-weight: 500;
    padding: 0.25rem 0.5rem;
    word-break: break-word;
    max-width: 100%;
}

/* レスポンシブ対応 */
@media (max-width: 640px) {
    .breadcrumb-nav {
        margin-top: 0.125rem;
        padding: 0.5rem 0.75rem;
        margin-bottom: 0.25rem;
    }
    
    .breadcrumb-nav ol {
        font-size: 0.875rem;
        gap: 0.125rem;
    }
    
    .breadcrumb-nav a,
    .breadcrumb-nav [aria-current="page"] {
        padding: 0.125rem 0.375rem;
    }
    
    .breadcrumb-nav svg {
        width: 0.875rem;
        height: 0.875rem;
    }
    
    .breadcrumb-nav .separator {
        margin: 0 0.25rem;
    }
}

/* ダークモード対応 */
@media (prefers-color-scheme: dark) {
    .breadcrumb-nav {
        background-color: #f8f9fa;
        border-color: #e9ecef;
    }
    
    .breadcrumb-nav a {
        color: #2563eb;
    }
    
    .breadcrumb-nav a:hover {
        color: #1d4ed8;
        background-color: #eff6ff;
    }
    
    .breadcrumb-nav [aria-current="page"] {
        color: #111827;
    }
    
    .breadcrumb-nav .separator {
        color: #9ca3af;
    }
}

/* 高コントラストモード対応 */
@media (prefers-contrast: high) {
    .breadcrumb-nav {
        border-width: 2px;
    }
    
    .breadcrumb-nav a {
        border: 1px solid transparent;
    }
    
    .breadcrumb-nav a:hover,
    .breadcrumb-nav a:focus {
        border-color: currentColor;
    }
}

/* アニメーション軽減設定対応 */
@media (prefers-reduced-motion: reduce) {
    .breadcrumb-nav a {
        transition: none;
    }
}