/**
 * PCパーツ価格トラッカー - グラフスタイル
 */

.pcparts-chart-container {
    margin: 8px 0;
    padding: 10px 12px 12px;
    background: #fff;
    border: none;
    border-radius: var(--pcparts-border-radius, 4px);
    box-shadow: var(--pcparts-box-shadow, 2px 3px 8px -5px rgba(0, 0, 0, .25));
}

.pcparts-chart-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 4px;
    flex-wrap: wrap;
    gap: 4px;
}

.pcparts-chart-title {
    margin: 0;
    font-size: 1em;
    color: #1f2937;
    font-weight: 700;
    font-family: 'Yu Gothic', 'Meiryo', sans-serif;
    line-height: 1.3;
}

.pcparts-chart-controls {
    display: flex;
    gap: 5px;
    flex-wrap: wrap;
}

.pcparts-period-btn {
    padding: 6px 12px;
    border: 1px solid #d1d5db;
    background: #fff;
    color: #374151;
    border-radius: 4px;
    cursor: pointer;
    font-size: 13px;
    transition: all 0.2s;
}

.pcparts-period-btn:hover {
    background: #f3f4f6;
    border-color: #9ca3af;
}

.pcparts-period-btn.active {
    background: var(--pcparts-active-bg, #212f99);
    color: #fff;
    border-color: var(--pcparts-active-bg, #212f99);
}

.pcparts-chart-info {
    display: flex;
    gap: 8px;
    margin-bottom: 4px;
    font-size: 13px;
    color: #6b7280;
    flex-wrap: wrap;
}

.pcparts-chart-info:empty {
    display: none;
}

.pcparts-chart-info span {
    display: inline-flex;
    align-items: center;
}

.pcparts-chart-category,
.pcparts-chart-manufacturer,
.pcparts-chart-base {
    padding: 4px 10px;
    background: #f3f4f6;
    border-radius: 4px;
}

.pcparts-chart-wrapper {
    position: relative;
    width: 100%;
    background: #fff;
}

.pcparts-chart-loading {
    display: none;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    padding: 10px 20px;
    background: rgba(255, 255, 255, 0.95);
    border: 1px solid #e5e7eb;
    border-radius: 4px;
    font-size: 14px;
    color: #6b7280;
    z-index: 10;
}

.pcparts-chart-error,
.pcparts-chart-no-data {
    padding: 40px;
    text-align: center;
    color: #6b7280;
    font-size: 14px;
}

.pcparts-chart-error {
    color: #ef4444;
}

.pcparts-index-list {
    margin: 20px 0;
}

.pcparts-index-table {
    width: 100%;
    border-collapse: collapse;
    background: #fff;
    box-shadow: var(--pcparts-box-shadow, 2px 3px 8px -5px rgba(0, 0, 0, .25));
    border-radius: var(--pcparts-border-radius, 4px);
    overflow: hidden;
}

.pcparts-index-table thead {
    background: #f9fafb;
}

.pcparts-index-table th {
    padding: 12px 15px;
    text-align: left;
    font-weight: 600;
    color: #374151;
    border-bottom: 2px solid #e5e7eb;
    font-size: 14px;
}

.pcparts-index-table td {
    padding: 12px 15px;
    border-bottom: 1px solid #e5e7eb;
    font-size: 14px;
    color: #1f2937;
}

.pcparts-index-table tbody tr:last-child td {
    border-bottom: none;
}

.pcparts-index-table tbody tr:hover {
    background: #f9fafb;
}

.pcparts-change-rate {
    padding: 2px 8px;
    border-radius: 4px;
    font-weight: 600;
}

.pcparts-change-rate.positive {
    color: #10b981;
    background: #d1fae5;
}

.pcparts-change-rate.negative {
    color: #ef4444;
    background: #fee2e2;
}

.pcparts-show-chart-btn {
    padding: 4px 12px;
    background: var(--pcparts-active-bg, #212f99);
    color: #fff;
    border-radius: var(--pcparts-border-radius, 4px);
    text-decoration: none;
    font-size: 13px;
    display: inline-block;
    transition: background 0.2s;
}

.pcparts-show-chart-btn:hover {
    background: #1a2570;
    color: #fff;
    text-decoration: none;
}

@media (max-width: 768px) {
    .pcparts-chart-header {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .pcparts-chart-controls {
        width: 100%;
    }
    
    .pcparts-period-btn {
        flex: 1;
        min-width: 60px;
        text-align: center;
    }
    
    .pcparts-index-table {
        font-size: 12px;
    }
    
    .pcparts-index-table th,
    .pcparts-index-table td {
        padding: 8px 10px;
    }
    
    .pcparts-chart-info {
        flex-direction: column;
        gap: 8px;
    }
}

@media (max-width: 480px) {
    .pcparts-chart-container {
        padding: 12px;
    }

    .pcparts-chart-title {
        font-size: 1.1em;
    }

    .pcparts-period-btn {
        font-size: 11px;
        padding: 5px 8px;
    }

    .pcparts-index-table {
        display: block;
        overflow-x: auto;
    }

    .pcparts-chart-wrapper {
        max-height: 250px;
    }
}

/* ========================================
   v2.6.0追加: グラフUI改善
   ======================================== */

/* ドロップダウン選択のスタイル */
.pcparts-period-select {
    padding: 6px 12px;
    border: 1px solid #ddd;
    border-radius: 4px;
    background-color: #fff;
    font-size: 14px;
    cursor: pointer;
    min-width: 100px;
}

.pcparts-period-select:hover {
    border-color: #999;
}

.pcparts-period-select:focus {
    outline: none;
    border-color: var(--pcparts-active-bg, #212f99);
    box-shadow: 0 0 0 2px rgba(33, 47, 153, 0.2);
}

/* タイトルと最終更新日のラッパー */
.pcparts-chart-title-wrapper {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 10px;
}

/* 最終更新日のスタイル */
.pcparts-chart-last-updated {
    font-size: 0.75em;
    color: #666;
    white-space: nowrap;
    margin-left: 10px;
}

/* レスポンシブ対応 */
@media (max-width: 600px) {
    .pcparts-chart-title-wrapper {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .pcparts-chart-last-updated {
        margin-left: 0;
        margin-top: 5px;
    }
    
    .pcparts-period-select {
        width: 100%;
    }
}