/* ===== グラフ画面 ===== */
.graph-section {
    margin-bottom: 24px;
}

.graph-container {
    width: 100%;
    min-height: 250px;
    height: 400px;
    /* Fixed height for Chart.js */
    background: rgba(0, 0, 0, 0.2);
    border-radius: var(--radius-md);
    margin-bottom: 16px;
    display: flex;
    /* Chart.js needs container or canvas */
    padding: 10px;
    border: 1px solid #808090;
    position: relative;
}

.graph-placeholder {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin: auto;
}

/* Chart Controls */
.chart-controls {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    /* Reduced gap for compact buttons */
    margin-bottom: 20px;
    padding: 10px;
    background: rgba(255, 255, 255, 0.03);
    border-radius: var(--radius-sm);
    justify-content: flex-start;
}

.chart-toggle-btn {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.85rem;
    cursor: pointer;
    background: rgba(0, 0, 0, 0.2);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    padding: 6px 12px;
    color: var(--text-secondary);
    transition: all 0.2s ease;
    user-select: none;
}

.chart-toggle-btn.on {
    background: rgba(255, 255, 255, 0.1);
    color: var(--text-primary);
    border-color: rgba(255, 255, 255, 0.3);
}

.chart-toggle-btn.off {
    background: transparent;
    color: var(--text-muted);
    border-color: rgba(255, 255, 255, 0.1);
    opacity: 0.7;
}

@media (hover: hover) {
    .chart-toggle-btn:hover {
        background: rgba(255, 255, 255, 0.15);
    }
}

.color-indicator {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    display: inline-block;
    flex-shrink: 0;
}

.control-label {
    white-space: nowrap;
}

.ranking-container {
    margin-top: 16px;
}

.ranking-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.9rem;
}

.ranking-table th,
.ranking-table td {
    padding: 8px 12px;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

.ranking-table th {
    color: var(--text-secondary);
    font-weight: 500;
}

.ranking-table td {
    color: var(--text-primary);
}

.ranking-table .empty-cell {
    text-align: center;
    color: var(--text-secondary);
    padding: 16px;
}

/* 順位カラムの調整 */
.ranking-table th:first-child,
.ranking-table td:first-child {
    width: 60px;
    text-align: center;
}

/* 上昇値カラムの調整 */
.ranking-table th:last-child,
.ranking-table td:last-child {
    width: 100px;
    text-align: right;
}