h1:focus {
    outline: none;
}

.valid.modified:not([type=checkbox]) {
    outline: 1px solid #26b050;
}

.invalid {
    outline: 1px solid #e50000;
}

.validation-message {
    color: #e50000;
}

.blazor-error-boundary {
    background: url(data:image/svg+xml;base64,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) no-repeat 1rem/1.8rem, #b32121;
    padding: 1rem 1rem 1rem 3.7rem;
    color: white;
}

    .blazor-error-boundary::after {
        content: "An error has occurred."
    }

.darker-border-checkbox.form-check-input {
    border-color: #929292;
}

/* =================================
 * Master table: sortable headers
 * ================================= */
.master-table th.sortable {
    cursor: pointer;
    user-select: none;
    white-space: nowrap;
}

.master-table th.sortable:hover {
    background-color: rgba(0, 0, 0, 0.075);
}

/* =================================
 * Master table: scrollable body with sticky header
 * ================================= */
.master-table-container {
    min-height: 200px;
    max-height: calc(100vh - 300px);
    overflow-y: auto;
}

.master-table-container thead {
    position: sticky;
    top: 0;
    z-index: 1;
}

.master-table-container thead th {
    background-color: #f8f9fa;
    border-bottom: 2px solid #dee2e6;
}

/* =================================
 * App layout: sidebar + main
 * ================================= */
.app-layout {
    display: flex;
    min-height: 100vh;
    background-color: #f5f6f8;
}

/* =================================
 * Sidebar (freee-style light)
 * ================================= */
.sidebar {
    width: 240px;
    min-width: 240px;
    background-color: #fff;
    color: #495057;
    border-right: 1px solid #e3e6eb;
    transition: width 0.2s ease, min-width 0.2s ease;
    overflow-x: hidden;
}

.sidebar.sidebar-collapsed {
    width: 52px;
    min-width: 52px;
}

.sidebar-header {
    min-height: 52px;
    color: #1a1a2e;
}

.sidebar-header .btn-link {
    color: #8c919a;
    font-size: 1.1rem;
}

.sidebar-header .btn-link:hover {
    color: #1a1a2e;
}

.sidebar-menu {
    padding: 0.5rem 0.5rem;
}

/* --- 単体リンク & カテゴリヘッダー --- */
.sidebar-link,
.sidebar-category-header {
    display: flex;
    align-items: center;
    padding: 0.5rem 0.75rem;
    color: #495057;
    text-decoration: none;
    font-size: 0.875rem;
    white-space: nowrap;
    cursor: pointer;
    border-radius: 8px;
    margin-bottom: 1px;
    transition: background-color 0.15s ease, color 0.15s ease;
}

.sidebar-link:hover,
.sidebar-category-header:hover {
    color: #1a1a2e;
    background-color: #eef1f6;
}

.sidebar-link.active {
    color: #2563eb;
    background-color: #eff4ff;
    font-weight: 600;
    border-left: none;
}

/* --- サブメニュー --- */
.sidebar-submenu {
    padding-left: 1rem;
}

.sidebar-submenu a {
    display: flex;
    align-items: center;
    padding: 0.35rem 0.75rem;
    color: #6b7280;
    text-decoration: none;
    font-size: 0.8125rem;
    white-space: nowrap;
    border-radius: 6px;
    transition: background-color 0.15s ease, color 0.15s ease;
}

.sidebar-submenu a:hover {
    color: #1a1a2e;
    background-color: #eef1f6;
}

.sidebar-submenu a.active {
    color: #2563eb;
    background-color: #eff4ff;
    font-weight: 600;
}

/* --- フッター --- */
.sidebar-footer {
    background-color: #fafbfc;
    border-top: 1px solid #e3e6eb;
}

/* --- メインコンテンツ --- */
.main-content {
    flex: 1;
    padding: 2rem;
    overflow-y: auto;
    min-width: 0;
    background-color: #f5f6f8;
}

/* =================================
 * Home: welcome & feature cards
 * ================================= */
.home-welcome {
    margin-bottom: 2rem;
}

.home-welcome h2 {
    font-size: 1.5rem;
    font-weight: 700;
    color: #1a1a2e;
    margin-bottom: 0.25rem;
}

.home-welcome p {
    color: #6b7280;
    font-size: 0.95rem;
    margin: 0;
}

/* --- 機能カード グリッド --- */
.feature-cards {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.25rem;
    margin-bottom: 2rem;
}

.feature-card {
    background: #fff;
    border: 1px solid #e3e6eb;
    border-radius: 12px;
    padding: 1.5rem;
    text-decoration: none;
    color: inherit;
    transition: box-shadow 0.2s ease, transform 0.2s ease;
}

.feature-card:hover {
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.08);
    transform: translateY(-2px);
    color: inherit;
    text-decoration: none;
}

.feature-card-icon {
    width: 44px;
    height: 44px;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    margin-bottom: 0.875rem;
}

.feature-card-icon.blue    { background: #eff4ff; color: #2563eb; }
.feature-card-icon.green   { background: #ecfdf5; color: #16a34a; }
.feature-card-icon.orange  { background: #fff7ed; color: #ea580c; }
.feature-card-icon.purple  { background: #f3e8ff; color: #9333ea; }

.feature-card h3 {
    font-size: 0.95rem;
    font-weight: 600;
    color: #1a1a2e;
    margin-bottom: 0.375rem;
}

.feature-card p {
    font-size: 0.8125rem;
    color: #6b7280;
    margin: 0;
    line-height: 1.5;
}

/* --- クイックリンク --- */
.quick-links-section h4 {
    font-size: 0.875rem;
    font-weight: 600;
    color: #6b7280;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 0.75rem;
}

.quick-links {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.quick-link {
    display: inline-flex;
    align-items: center;
    gap: 0.375rem;
    padding: 0.375rem 0.875rem;
    background: #fff;
    border: 1px solid #e3e6eb;
    border-radius: 20px;
    color: #495057;
    text-decoration: none;
    font-size: 0.8125rem;
    transition: background-color 0.15s ease, border-color 0.15s ease;
}

.quick-link:hover {
    background-color: #eff4ff;
    border-color: #bfdbfe;
    color: #2563eb;
    text-decoration: none;
}

/* --- レスポンシブ --- */
@media (max-width: 1200px) {
    .feature-cards {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .feature-cards {
        grid-template-columns: 1fr;
    }
}

/* ============================================================
   ProductThumbnail コンポーネント
   ============================================================ */
.product-thumb-list {
    width: 40px;
    height: 40px;
    object-fit: cover;
    border-radius: 4px;
}

.product-thumb-placeholder {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    font-size: 1.2rem;
}

.product-thumb-detail {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.product-thumb-main {
    max-width: 200px;
    max-height: 200px;
    object-fit: contain;
    border-radius: 4px;
    border: 1px solid #dee2e6;
}

.product-thumb-row {
    display: flex;
    gap: 6px;
    flex-wrap: wrap;
}

.product-thumb-sm {
    width: 48px;
    height: 48px;
    object-fit: cover;
    border-radius: 4px;
    border: 2px solid transparent;
    cursor: pointer;
    transition: border-color 0.15s;
}

.product-thumb-sm:hover {
    border-color: #6c757d;
}

.product-thumb-sm.active {
    border-color: #0d6efd;
}