/* style.css の先頭あたりに追加 */
#chart {
    position: relative; /* ハンドルを絶対配置するための基準 */
    width: 600px; /* 初期幅 */
    height: 400px; /* 初期高さ */
    border: 1px solid #ccc;
    overflow: hidden; /* コンテナからはみ出た部分を隠す */
    background: #ffffff; /* 背景色を白に指定 */
}

#resize-handle {
    position: absolute;
    bottom: 0;
    right: 0;
    width: 15px;
    height: 15px;
    background-color: #ddd;
    border-top: 1px solid #999;
    border-left: 1px solid #999;
    cursor: nwse-resize; /* リサイズカーソル */
    z-index: 20; /* 常に手前に表示 */
}
.bar {
    fill: #696969;
}
.bar:hover {
    fill: #343434;
}
.instruction {
    margin: 10px 20px;
    color: #666;
    font-size: 0.9em;
}
.tooltip {
    position: fixed;
    padding: 8px;
    background: rgba(0, 0, 0, 0.8);
    color: white;
    border-radius: 4px;
    font-size: 12px;
    pointer-events: none;
    opacity: 0;
    transition: opacity 0.2s;
    z-index: 1000;
}
.csv-section {
    margin: 20px;
    padding: 15px;
    background-color: #f5f5f5;
    border-radius: 5px;
}
.csv-textarea {
    width: 100%;
    height: 150px;
    margin: 10px 0;
    padding: 5px;
    border: 1px solid #ddd;
    border-radius: 3px;
    font-family: monospace;
}
button2 {
    padding: 5px 15px;
    background-color: #696969;
    color: white;
    border: none;
    border-radius: 3px;
    cursor: pointer;
    margin-right: 5px;
    font-size: 12px; /* ← この行を追加・変更 */
}
button2:hover {
    background-color: #343434;
}
/* ▼▼▼ 変更箇所 ▼▼▼ */
button2.disabled {
    opacity: 0.5;
    cursor: not-allowed;
    pointer-events: none;
}
/* ▲▲▲ 変更ここまで ▲▲▲ */
.button-group {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    margin: 10px 0;
    justify-content: flex-start;
    width: 100%;
}
.button-group button {
    flex: 1;
}
.button-group button2 {
    padding: 8px 15px;
    white-space: nowrap;
    flex: 0 0 auto;
}
.control-group {
    margin-bottom: 10px;
}
select {
    padding: 5px;
    border-radius: 3px;
    border: 1px solid #ddd;
    width: 120px;
}
.input-controls {
    display: flex;
    flex-direction: column;
    gap: 10px;
}
.control-wrapper {
    display: flex;
    flex-direction: column;
    gap: 10px;
}
.delimiter-control {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-top: 10px;
    justify-content: flex-start;
    font-size: 12px; /* ← この行を追加・変更 */
}

/* ▼▼▼ このスタイルを追加 ▼▼▼ */
.origin-axis {
    stroke: red;
    stroke-width: 1.5px;
}

/* ▼▼▼ 以下を末尾に追加 ▼▼▼ */
.context-menu {
    position: absolute;
    display: none;
    background-color: #f9f9f9;
    border: 1px solid #ccc;
    box-shadow: 2px 2px 5px rgba(0,0,0,0.15);
    z-index: 1001;
    padding: 0;
    margin: 0;
    list-style: none;
    border-radius: 4px;
    font-size: 14px;
}
.context-menu ul {
    list-style: none;
    margin: 0;
    padding: 5px 0;
}
.context-menu ul li {
    padding: 8px 15px;
    cursor: pointer;
}
.context-menu ul li:hover {
    background-color: #e9e9e9;
}

#toolbar {
    min-width: 180px;
    min-height: 60px;
    max-width: 100vw;
    box-sizing: border-box;
    transition: width 0.2s, height 0.2s;
    width:280px;
}

#toolbar .button-group {
    flex-direction: row;
}

@media (max-width: 420px) {
    #toolbar .button-group {
        flex-direction: column;
        align-items: stretch;
    }
}

#toolbar .button-group button2 {
    width: 100%;
    min-width: 80px;
    box-sizing: border-box;
}

/* 幅が狭い場合は縦並び */
#toolbar[style*="width: "] .button-group {
    flex-direction: row;
}
#toolbar[style*="width: 220px"] .button-group,
#toolbar[style*="width: 200px"] .button-group,
#toolbar[style*="width: 180px"] .button-group,
#toolbar[style*="width: 160px"] .button-group {
    flex-direction: column;
    align-items: stretch;
}
.toolbar-tabs {
    display: flex;
    gap: 4px;
    margin-bottom: 8px;
}
.toolbar-tab {
    background: #333;
    color: #fff;
    border: none;
    border-radius: 4px 4px 0 0;
    padding: 6px 16px;
    cursor: pointer;
    font-size: 13px;
    outline: none;
    opacity: 0.7;
    transition: background 0.2s, opacity 0.2s;
}
.toolbar-tab.active {
    background: #fff;
    color: #333;
    opacity: 1;
}
.toolbar-tab-content {
    display: none;
}
.toolbar-tab-content#data-tab {
    display: block;
}

/* WordPress等の外部CSSの影響を受けにくくするための強化CSS */
.context-menu, #group-context-menu {
  position: fixed !important;
  z-index: 99999 !important;
  background: #fff !important;
  border: 1px solid #ccc !important;
  box-shadow: 2px 2px 6px rgba(0,0,0,0.15) !important;
  color: #222 !important;
  font-family: 'Segoe UI', 'Meiryo', sans-serif !important;
  font-size: 15px !important;
  min-width: 120px !important;
  padding: 4px 0 !important;
  margin: 0 !important;
  box-sizing: border-box !important;
  outline: none !important;
  overflow: visible !important;
}
.context-menu ul, #group-context-menu ul {
  list-style: none !important;
  margin: 0 !important;
  padding: 0 !important;
  background: none !important;
}
.context-menu li, #group-context-menu li, #group-context-menu div {
  padding: 6px 16px !important;
  cursor: pointer !important;
  background: none !important;
  border: none !important;
  color: #222 !important;
  font-size: 15px !important;
  font-family: inherit !important;
}
.context-menu li:hover, #group-context-menu li:hover, #group-context-menu div:hover {
  background: #f0f0f0 !important;
  color: #0078d7 !important;
}

/* ▼▼▼ グループツリー（エクスプローラー風） ▼▼▼ */
#group-tree-panel {
  background: #fff;
  border: 1px solid #888;
  box-shadow: 2px 2px 8px #0002;
  color: #222;
  font-family: 'Segoe UI', 'Meiryo', sans-serif;
  font-size: 15px;
  z-index: 2000;
  box-sizing: border-box;
  border-radius: 10px;
  padding: 12px 0 12px 0;
}
#group-tree-list {
  background: #f7fafd;
  border-radius: 8px;
  padding: 8px 0 8px 0;
  margin: 0;
  box-shadow: 0 1px 4px rgba(0,0,0,0.04);
  font-size: 1.05em;
}
#group-tree-list ul {
  list-style: none;
  padding-left: 18px;
  margin: 0;
}
#group-tree-list li[data-group] {
  background: #fff;
  border-radius: 6px;
  margin: 4px 0;
  padding: 6px 12px 6px 0px;
  transition: background 0.18s, box-shadow 0.18s;
  box-shadow: 0 1px 2px rgba(0,0,0,0.03);
  display: block;
  cursor: pointer;
  user-select: none;
  position: relative;
}
#group-tree-list li[data-group]:hover {
  background: #e3f2fd;
  box-shadow: 0 2px 8px rgba(33,150,243,0.08);
}
#group-tree-list li[data-group].selected {
  background: linear-gradient(90deg, #bbdefb 60%, #e3f2fd 100%);
  color: #1565c0;
  font-weight: bold;
  box-shadow: 0 2px 8px rgba(33,150,243,0.13);
}
#group-tree-list .group-series-list {
  font-size: 0.92em;
  color: #789;
  margin-left: 10px;
  background: #f1f8e9;
  border-radius: 4px;
  padding: 1px 7px;
}
#group-tree-list li[data-group] span:first-child {
  flex: 1 1 auto;
  font-size: 1.08em;
  letter-spacing: 0.01em;
}
#group-tree-list li[data-group] .tree-toggle {
  width: 1.2em;
  display: inline-block;
  text-align: center;
  font-size: 1em;
  color: #888;
  cursor: pointer;
  margin-right: 2px;
  user-select: none;
}
#group-tree-list li[data-group] > span,
#group-tree-list li[data-group] > .group-series-list {
  display: inline-block;
  vertical-align: middle;
}
#group-tree-list li[data-group] ul {
  margin-left: 1.2em;
  border-left: 1.5px dashed #cfd8dc;
  padding-left: 1em;
}
#group-tree-list li.collapsed > ul {
  display: none;
}