/* 商品分析ページ完全版 - モックアップ準拠CSS */

/* CSS変数でデザインシステムを定義 */
.product-dashboard-container {
    min-height: 100vh;
    display: flex;
    flex-direction: row;
    background: var(--gradient-background);
    color: var(--color-gray-800);
}

.visually-hidden {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

.product-dashboard-main {
    flex: 1;
    min-height: 100vh;
    position: relative;
    margin-left: 360px; /* サイドバーの実際の幅 */
}

/* レスポンシブ - サイドバーが非表示になる場合 */
@media (max-width: 1024px) {
    .product-dashboard-main {
        margin-left: 0; /* モバイル時はサイドバーがオーバーレイになるため余白不要 */
    }
}

/* ヘッダー */
.header {
    background: rgba(255, 255, 255, 0.7);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--color-gray-200);
    padding: var(--spacing-xl) var(--spacing-3xl);
    /* 追従ヘッダーを無効化（通常フロー） */
    position: static;
}

.header-title {
    font-size: var(--font-3xl);
    font-weight: 700;
    color: var(--color-gray-900);
    background: var(--gradient-title);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin: 0;
}

/* Webkitサポートのないブラウザ用 */
@supports not (-webkit-background-clip: text) {
    .header-title {
        background: none;
        color: var(--color-gray-900);
    }
}

.header-subtitle {
    font-size: var(--font-sm);
    color: var(--color-gray-800);
    margin-top: 2px;
    margin-bottom: 0;
}

.header-subtitle {
    letter-spacing: 0.01em;
}

/* メインコンテンツ */
.main-content {
    max-width: 1600px;
    margin: 0 auto;
    padding: var(--spacing-3xl);
    min-height: calc(100vh - var(--spacing-xl) * 5);
    display: flex;
    flex-direction: column;
}

.products-section {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-2xl);
    margin-bottom: calc(var(--spacing-3xl) * 1.1);
}

.products-section:last-of-type {
    margin-bottom: 0;
}

.table-section .table-container,
.sales-section .sales-card {
    background: #ffffff;
    border-radius: var(--border-radius-lg);
    border: 1px solid rgba(229, 231, 235, 0.8);
    box-shadow: var(--shadow-sm);
}

.table-section .table-container {
    padding: var(--spacing-2xl);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-2xl);
    align-items: stretch;
}


.table-title-text {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.table-caption {
    font-size: var(--font-sm);
    color: var(--color-gray-600);
    margin: 0;
}


/* セクションヘッダー */
.section-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
    margin-bottom: calc(var(--spacing-xl) + 5px);
}

.section-icon {
    width: calc(var(--spacing-xl) * 2);
    height: calc(var(--spacing-xl) * 2);
    border-radius: var(--border-radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: var(--font-xl);
}

.section-title h2 {
    font-size: 20px;
    font-weight: 700;
    color: var(--color-gray-900);
    margin: 0;
}

.section-title p {
    font-size: 13px;
    color: var(--color-gray-800);
    margin-top: 2px;
    margin-bottom: 0;
}

/* フォーカススタイル（アクセシビリティ） */
*:focus-visible {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
}

button:focus-visible {
    outline: 2px solid var(--color-primary);
    outline-offset: 0;
}

input:focus-visible {
    outline: none;
    box-shadow: 0 0 0 3px rgba(124, 58, 237, var(--opacity-heavy));
}

/* KPIカード */
.kpi-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-3xl);
    margin-bottom: calc(var(--spacing-xl) * 2.4);
}

.kpi-card {
    position: relative;
    background: var(--gradient-card);
    border-radius: var(--border-radius-xl);
    padding: 24px;
    box-shadow: var(--shadow-sm), var(--shadow-xs);
    border: 1px solid rgba(229, 231, 235, 0.5);
    transition: all var(--transition-base) cubic-bezier(0.4, 0, 0.2, 1);
    height: 100%;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    cursor: default;
}

.kpi-card:hover {
    box-shadow: var(--shadow-md), var(--shadow-sm);
    transform: translateY(-3px);
    background: linear-gradient(135deg, #ffffff 0%, var(--color-gray-50) 100%);
}

.kpi-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg,
        rgba(139, 92, 246, 0) 0%,
        rgba(139, 92, 246, 0.5) 50%,
        rgba(139, 92, 246, 0) 100%);
    opacity: 0;
    transition: opacity var(--transition-base);
}

.kpi-card:hover::before {
    opacity: 1;
}

.kpi-card:hover {
    box-shadow: var(--shadow-md), var(--shadow-sm);
    transform: translateY(-3px);
    background: linear-gradient(135deg, #ffffff 0%, var(--color-gray-50) 100%);
}

.kpi-card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 18px;
    gap: var(--spacing-lg);
}

.kpi-icon-wrapper {
    padding: 13px;
    border-radius: 14px;
    position: relative;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    transition: transform 0.3s ease;
}

.kpi-card:hover .kpi-icon-wrapper {
    transform: scale(1.03);
}

.kpi-icon-wrapper::before {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: 14px;
    opacity: 0.15;
    z-index: 0;
    transition: opacity var(--transition-base);
}

.kpi-card:hover .kpi-icon-wrapper::before {
    opacity: 0.22;
}

.kpi-icon-wrapper.gradient-violet::before { background: linear-gradient(135deg, #8b5cf6 0%, #a855f7 100%); }
.kpi-icon-wrapper.gradient-blue::before { background: linear-gradient(135deg, #3b82f6 0%, #6366f1 100%); }
.kpi-icon-wrapper.gradient-emerald::before { background: linear-gradient(135deg, #10b981 0%, #14b8a6 100%); }
.kpi-icon-wrapper.gradient-pink::before { background: linear-gradient(135deg, #ec4899 0%, #f43f5e 100%); }
.kpi-icon-wrapper.gradient-orange::before { background: linear-gradient(135deg, #f97316 0%, #ef4444 100%); }
.kpi-icon-wrapper.gradient-indigo::before { background: linear-gradient(135deg, #6366f1 0%, #3b82f6 100%); }

.kpi-icon {
    width: 24px;
    height: 24px;
    position: relative;
    z-index: 1;
    font-size: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: transform 0.3s ease;
}

.kpi-icon-wrapper.gradient-violet .kpi-icon,
.kpi-icon-wrapper.gradient-blue .kpi-icon,
.kpi-icon-wrapper.gradient-emerald .kpi-icon,
.kpi-icon-wrapper.gradient-pink .kpi-icon,
.kpi-icon-wrapper.gradient-orange .kpi-icon,
.kpi-icon-wrapper.gradient-indigo .kpi-icon {
    color: #ffffff;
}

.kpi-change {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: var(--font-sm);
    font-weight: 600;
    padding: 6px 12px;
    border-radius: var(--border-radius-md);
    transition: all var(--transition-base);
    line-height: 1.2;
    border: 1px solid transparent;
    align-self: flex-start;
}

.kpi-change-indicator {
    font-size: 13px;
    line-height: 1;
}

.kpi-change-value {
    font-variant-numeric: tabular-nums;
    letter-spacing: 0.01em;
}

.kpi-change.positive {
    color: var(--color-success);
    background-color: rgba(16, 185, 129, 0.08);
    border-color: rgba(16, 185, 129, 0.4);
}

.kpi-change.negative {
    color: var(--color-danger);
    background-color: rgba(239, 68, 68, 0.08);
    border-color: rgba(239, 68, 68, 0.4);
}

.kpi-change.neutral {
    color: var(--color-gray-800);
    background-color: var(--color-gray-100);
    border-color: var(--color-gray-300);
}

.kpi-card:hover .kpi-change.positive {
    background-color: rgba(16, 185, 129, 0.12);
}

.kpi-card:hover .kpi-change.negative {
    background-color: rgba(239, 68, 68, 0.12);
}

.kpi-card:hover .kpi-change.neutral {
    background-color: var(--color-gray-200);
}

/* Hide percent badge for New Product ID KPI explicitly */
#kpi-card-new-product-count .kpi-change { display: none !important; }

.kpi-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
    align-items: flex-start;
    gap: var(--spacing-sm);
}


.kpi-label {
    font-size: 13px;
    font-weight: 600;
    color: var(--color-gray-900);
    margin-bottom: 0;
    letter-spacing: 0.01em;
    white-space: nowrap;
}

.kpi-value {
    margin: 0;
    display: inline-flex;
    align-items: baseline;
    gap: 6px;
    font-size: 30px;
    font-weight: 700;
    color: var(--color-gray-900); /* フォールバック色 */
    background: linear-gradient(135deg, #111827 0%, #4b5563 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.kpi-value-number {
    font-variant-numeric: tabular-nums lining-nums;
}

.kpi-value-unit {
    font-size: 20px;
    font-weight: 600;
    color: var(--color-gray-700);
}

.kpi-value-prefix,
.kpi-value-currency {
    font-size: 22px;
    font-weight: 600;
    color: var(--color-gray-800);
    margin-right: 2px;
}

/* Webkitサポートのないブラウザ用 */
@supports not (-webkit-background-clip: text) {
    .kpi-value {
        background: none;
        color: var(--color-gray-900);
    }
}

.sales-section-header {
    /* Match the inventory section width */
    max-width: none;
    width: 100%;
    margin-left: 0;
    margin-right: 0;
    margin-bottom: var(--spacing-2xl);
}

.sales-section .section-title h2 {
    font-size: 18px;
    font-weight: 600;
    color: var(--color-gray-800);
}

.sales-section .section-title p {
    color: var(--color-gray-600);
}

/* グラデーション背景効果 */
.gradient-violet { background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%); }
.gradient-blue { background: linear-gradient(135deg, var(--color-secondary) 0%, #6366f1 100%); }
.gradient-emerald { background: linear-gradient(135deg, var(--color-success) 0%, #14b8a6 100%); }
.gradient-pink { background: linear-gradient(135deg, #ec4899 0%, #f43f5e 100%); }
.gradient-orange { background: linear-gradient(135deg, var(--color-warning) 0%, var(--color-danger) 100%); }
.gradient-indigo { background: linear-gradient(135deg, #6366f1 0%, var(--color-secondary) 100%); }
.gradient-amber { background: linear-gradient(135deg, var(--color-warning) 0%, #f97316 100%); }

/* インライン検索ボックス（販売リスト用） */
.search-container-inline {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    background: rgba(255,255,255,0.2);
    border-radius: var(--border-radius-md);
    padding: 6px 12px;
    transition: all var(--transition-base);
}

.search-input-inline {
    flex: 1;
    border: none;
    outline: none;
    font-size: var(--font-sm);
    color: white;
    background: transparent;
    min-width: 200px;
}

.search-input-inline::placeholder {
    color: rgba(255,255,255,0.7);
}

.clear-search-inline {
    padding: 0;
    background: rgba(255,255,255,0.3);
    border: none;
    border-radius: 50%;
    font-size: 10px;
    color: white;
    cursor: pointer;
    transition: all var(--transition-base);
    width: 20px;
    height: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    line-height: 1;
}

.clear-search-inline:hover {
    background: rgba(255,255,255,0.4);
}

/* テキストセンター */
.text-center {
    text-align: center;
}

.search-label {
    font-size: var(--font-sm);
    font-weight: 600;
    color: var(--color-gray-700);
}

.search-input {
    flex: 1;
    border: none;
    outline: none;
    font-size: 14px;
    color: var(--color-gray-700);
    background: transparent;
    width: 100%;
}

.search-input::placeholder {
    color: var(--color-gray-800);
    opacity: 1;
}

.clear-search {
    padding: 0;
    background: var(--color-gray-100);
    border: none;
    border-radius: 50%;
    font-size: 12px;
    color: var(--color-gray-600);
    cursor: pointer;
    transition: all var(--transition-base);
    width: 24px;
    height: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    line-height: 1;
}

.clear-search:hover {
    background: var(--color-gray-200);
    color: var(--color-gray-700);
}

.table-title-wrapper {
    display: flex;
    align-items: center;
    gap: 12px;
}

.table-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: var(--spacing-xl);
    flex-wrap: wrap;
}

.search-container {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: 8px 16px;
    border-radius: var(--border-radius-md);
    background: #ffffff;
    border: 1px solid rgba(209, 213, 219, 0.9);
    transition: box-shadow var(--transition-base);
    width: 100%;
}


.search-container:focus-within {
    box-shadow: 0 0 0 3px rgba(124, 58, 237, 0.15);
    border-color: rgba(124, 58, 237, 0.4);
}

.table-title {
    font-size: 20px;
    font-weight: 700;
    color: var(--color-gray-900);
    margin: 0;
}

.table-wrapper {
    overflow-x: auto;
    padding-bottom: var(--spacing-xl);
    align-self: stretch;
}

.table-scroll-area {
    overflow-y: visible;
    margin-bottom: var(--spacing-2xl);
    padding-bottom: var(--spacing-xl);
}

.inventory-table thead {
    background: var(--color-gray-100);
    border-bottom: 1px solid var(--color-gray-200);
    box-shadow: inset 0 -1px 0 rgba(203, 213, 225, 0.6);
}

.inventory-table th {
    color: var(--color-gray-800);
    font-weight: 700;
    letter-spacing: 0.04em;
}

.col-rank {
    width: 72px;
}

.col-name {
    width: auto;
}

.col-price,
.col-stock,
.col-valuation,
.col-quantity,
.col-revenue {
    width: 120px;
}

.col-valuation,
.col-revenue {
    width: 140px;
}

table {
    width: 100%;
    border-collapse: collapse;
}

.table-wrapper table {
    flex: 1;
}

thead {
    background: var(--color-gray-50);
    border-bottom: 1px solid var(--color-gray-200);
    position: sticky;
    top: 0;
    z-index: var(--z-sticky);
}

th {
    padding: var(--spacing-lg) var(--spacing-xl);
    text-align: left;
    font-size: var(--font-sm);
    font-weight: 700;
    color: var(--color-gray-900);
    text-transform: none;
    letter-spacing: 0.02em;
    white-space: nowrap;
}

th.text-right,
td.text-right {
    text-align: right;
}

.inventory-table td {
    color: var(--color-gray-800);
}

.inventory-table td:nth-child(3),
.inventory-table td:nth-child(4),
.inventory-table td:nth-child(5),
.inventory-table td.rank-cell {
    text-align: right;
}

td {
    padding: var(--spacing-xl) var(--spacing-2xl);
    border-bottom: 1px solid var(--color-gray-100);
    font-size: var(--font-base);
}

tbody tr {
    transition: background 0.2s ease;
    line-height: 1.55;
}

tbody tr:hover {
    background: var(--color-gray-50);
}

.inventory-table tbody tr:nth-child(even),
.sales-card table tbody tr:nth-child(even) {
    background-color: rgba(243, 244, 246, 0.82);
}

.inventory-table td.price,
.inventory-table td.stock,
.inventory-table td.evaluation {
    text-align: right;
}

/* テーブルセル専用スタイル */
.empty-state {
    text-align: center;
    padding: calc(var(--spacing-xl) * 2);
    color: var(--color-gray-400);
}

.product-name {
    color: var(--color-gray-900);
    font-weight: 600;
    font-size: var(--font-base);
}

.price {
    color: var(--color-gray-800);
    font-weight: 500;
    text-align: right;
    font-variant-numeric: tabular-nums;
}

.stock {
    color: var(--color-gray-700);
    text-align: right;
    font-variant-numeric: tabular-nums;
}

.evaluation {
    color: var(--color-gray-900);
    font-weight: 600;
    cursor: default;
    font-variant-numeric: tabular-nums;
}

.rank-cell {
    color: var(--color-gray-500);
    font-size: var(--font-sm);
    text-align: right;
    width: calc(var(--spacing-3xl) * 2);
    font-variant-numeric: tabular-nums;
}

.product-name-small {
    color: var(--color-gray-800);
    font-weight: 500;
    font-size: var(--font-sm);
}

.price-small {
    color: var(--color-gray-700);
    font-size: var(--font-sm);
    text-align: right;
    font-variant-numeric: tabular-nums;
}

.quantity {
    color: var(--color-gray-700);
    font-size: var(--font-sm);
    text-align: right;
    font-variant-numeric: tabular-nums;
}

.sales-total {
    font-weight: 700;
    font-size: var(--font-base);
    text-align: right;
    font-variant-numeric: tabular-nums;
}

.sales-card table th {
    padding: var(--spacing-xl) var(--spacing-2xl);
    color: var(--color-gray-900);
    font-weight: 700;
    letter-spacing: 0.02em;
}

.sales-card table thead {
    background: var(--color-gray-100);
    border-bottom: 1px solid var(--color-gray-200);
}

.sales-card table th.text-right {
    text-align: right;
}

.sales-card table td {
    padding: var(--spacing-xl) var(--spacing-2xl);
}

.sales-card table td.text-right {
    text-align: right !important;
}

.product-dashboard-container .page-footer {
    margin: 48px auto 24px;
    padding: 28px 0 20px;
    border-top: 1px solid rgba(226, 232, 240, 0.9);
    text-align: center;
}

.product-dashboard-container .footer-inner {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    align-items: center;
}

.product-dashboard-container .footer-copy {
    font-size: var(--font-xs);
    color: var(--color-gray-600);
    letter-spacing: 0.01em;
}

.product-dashboard-container .footer-links {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: var(--spacing-lg);
}

.product-dashboard-container .footer-link {
    font-size: var(--font-sm);
    font-weight: 600;
    color: var(--color-gray-900);
    letter-spacing: 0.01em;
    text-decoration: underline;
    text-underline-offset: 4px;
    transition: color var(--transition-base);
}

.product-dashboard-container .footer-link:hover {
    color: var(--color-primary);
}

.product-dashboard-container .footer-link:focus-visible {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
    border-radius: var(--border-radius-sm);
}

/* ページネーション */
.pagination {
    margin-top: var(--spacing-2xl);
    padding: var(--spacing-lg);
    background: rgba(249, 250, 251, 0.75);
    border: 1px solid var(--color-gray-200);
    border-radius: var(--border-radius-md);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    align-items: center;
    align-self: stretch;
}

.pagination-info {
    font-size: var(--font-sm);
    color: var(--color-gray-900);
    margin: 0;
}

.pagination-controls {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: var(--spacing-sm);
    flex-wrap: nowrap;            /* prevent wrapping that breaks layout */
    overflow-x: auto;             /* allow horizontal scroll on very small widths */
}

.pagination-btn {
    min-width: 40px;
    height: 36px;
    padding: 0 12px;
    border-radius: var(--border-radius-md);
    font-size: var(--font-sm);
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-base);
    background: var(--color-bg-surface);
    color: var(--color-gray-900);
    border: 1px solid var(--color-gray-200);
}

.pagination-btn:hover:not(:disabled) {
    background: var(--gradient-button-hover);
    border-color: var(--color-primary-light);
    transform: translateY(-1px);
    opacity: 0.9;
}

.pagination-btn.active {
    background: linear-gradient(135deg, #6366f1 0%, var(--color-primary-light) 100%);
    color: white;
    border: 1px solid transparent;  /* keep width consistent; avoid reflow */
    box-shadow: 0 4px 12px rgba(99, 102, 241, 0.25);
    box-sizing: border-box;
}

.pagination-btn:disabled {
    background: var(--color-gray-200);
    color: var(--color-gray-600);
    cursor: not-allowed;
}

.pagination-btn:active:not(:disabled) {
    transform: translateY(0);
}

/* 販売リストグリッド（全てのテーブルで共通） */
.sales-grid {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-3xl);
    margin-bottom: calc(var(--spacing-xl) * 2);
    /* Use full available width to match inventory table */
    max-width: none;
    width: 100%;
    margin-left: 0;
    margin-right: 0;
}

.sales-card {
    background: var(--color-bg-surface);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-sm);
    border: 1px solid rgba(229, 231, 235, 0.7);
    overflow: hidden;
    transition: all var(--transition-slow);
    width: 100%;
    display: flex;
    flex-direction: column;
}

.sales-card:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-2px);
}

.sales-card-header {
    padding: calc(var(--spacing-lg) + 2px) var(--spacing-xl);
    color: white;
    position: relative;
    overflow: hidden;
}

.sales-card-header::before {
    content: '';
    position: absolute;
    inset: 0;
    background: rgba(0,0,0,var(--opacity-medium));
}

.sales-card-title {
    position: relative;
    display: flex;
    justify-content: space-between;
    align-items: center;
    z-index: 10;
}

.sales-card-title h3 {
    font-size: var(--font-lg);
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    letter-spacing: 0.5px;
    margin: 0;
}

/* ドロップダウン */
.dropdown-group {
    display: flex;
    /* ラベルの有無で高さが異なる要素を下端で揃える */
    align-items: flex-end;
    gap: var(--spacing-md);
    flex-wrap: wrap;
}

.dropdown {
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 6px;
}

.dropdown-toggle {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 6px 14px;
    background: rgba(255, 255, 255, 0.9);
    color: var(--color-gray-800);
    font-size: var(--font-sm);
    border-radius: var(--border-radius-md);
    border: 1px solid rgba(255,255,255,0.7);
    cursor: pointer;
    transition: background var(--transition-base);
}

/* ドロップダウンと更新ボタンの高さと位置を統一 */
.dropdown-toggle,
.update-btn {
    min-height: 44px;
    line-height: 1;
}

.dropdown-caret {
    font-size: 10px;
    color: var(--color-gray-500);
}

.dropdown-label {
    font-size: var(--font-xs);
    font-weight: 600;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: rgba(255, 255, 255, 0.85);
}

.dropdown-toggle:hover {
    background: rgba(255,255,255,0.95);
}

.update-btn {
    padding: 6px 18px;
    background: rgba(255, 255, 255, 0.92);
    color: var(--color-gray-900);
    font-size: var(--font-sm);
    font-weight: 600;
    border-radius: var(--border-radius-md);
    border: 1px solid rgba(255,255,255,0.7);
    cursor: pointer;
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
}

.update-btn:hover {
    background: rgba(255,255,255,0.98);
    border-color: rgba(255,255,255,0.8);
    transform: translateY(-1px);
}

.update-btn:active {
    transform: translateY(0);
}

.dropdown-menu {
    position: absolute;
    right: 0;
    top: 100%;
    margin-top: 4px;
    min-width: 85px;
    background: var(--color-bg-surface);
    border-radius: var(--border-radius-md);
    box-shadow: var(--shadow-xl);
    border: 1px solid var(--color-gray-200);
    overflow: hidden;
    z-index: var(--z-modal);
    max-height: 300px;
    overflow-y: auto;
}

/* カスタムスクロールバー - Webkit系ブラウザ */
.dropdown-menu::-webkit-scrollbar {
    width: 6px;
}

.dropdown-menu::-webkit-scrollbar-track {
    background: var(--color-gray-50);
}

.dropdown-menu::-webkit-scrollbar-thumb {
    background: var(--color-gray-300);
    border-radius: 3px;
}

.dropdown-menu::-webkit-scrollbar-thumb:hover {
    background: var(--color-gray-400);
}

/* Firefox対応 */
.dropdown-menu {
    scrollbar-width: thin;
    scrollbar-color: var(--color-gray-300) var(--color-gray-50);
}

.dropdown-item {
    width: 100%;
    padding: 10px 12px;
    text-align: left;
    font-size: var(--font-sm);
    color: var(--color-gray-600);
    background: none;
    border: none;
    cursor: pointer;
    transition: background var(--transition-fast);
}

.dropdown-item:hover {
    background: var(--color-gray-50);
}

/* フッター */
.footer {
    text-align: center;
    padding: calc(var(--spacing-xl) * 2) var(--spacing-xl);
    margin-top: auto;
    min-height: calc(var(--spacing-xl) * 5);
    display: flex;
    align-items: center;
    justify-content: center;
}

.footer-text {
    font-size: var(--font-xs);
    color: var(--color-gray-400);
    font-weight: 500;
    letter-spacing: 0.5px;
    margin: 0;
}

/* レスポンシブ */
@media (max-width: 1280px) {
    .kpi-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .main-content {
        padding: calc(var(--spacing-xl) + 5px);
    }
}

@media (max-width: 1024px) {
    .product-dashboard-main {
        margin-left: 0; /* モバイル時はサイドバーがオーバーレイになるため余白不要 */
    }
    
    .kpi-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .sales-grid {
        gap: var(--spacing-2xl);
    }
}

@media (max-width: 768px) {
    .products-section {
        margin-bottom: calc(var(--spacing-2xl) * 1.1);
        gap: var(--spacing-lg);
    }

    .kpi-grid {
        grid-template-columns: repeat(2, minmax(220px, 1fr));
        gap: var(--spacing-xl);
    }

    .main-content {
        padding: var(--spacing-xl);
    }

    .sales-grid {
        gap: var(--spacing-2xl);
    }

    .kpi-value {
        font-size: var(--font-2xl);
    }

    table {
        font-size: var(--font-sm);
    }

    th, td {
        padding: var(--spacing-md) calc(var(--spacing-md) + 2px);
    }

    .dropdown-group {
        flex-wrap: wrap;
        gap: var(--spacing-xs);
    }

    .dropdown-toggle, .update-btn {
        font-size: var(--font-sm);
        padding: 5px 10px;
    }

    .sales-card-title {
        flex-direction: column;
        align-items: flex-start;
        gap: 10px;
    }

    .table-header {
        flex-direction: column;
        gap: var(--spacing-lg);
    }

    .search-container {
        width: 100%;
    }
}

@media (max-width: 560px) {
    .kpi-grid {
        grid-template-columns: 1fr;
    }
}
.table-scroll-area table {
    width: 100%;
}