/* Excel / CSV からグラフを作るページ(散布図) */
#sc { flex: 1; min-height: 0; display: flex; }
#left { flex: 1; min-width: 0; overflow-y: auto; padding: 16px 20px 40px; background: var(--bg); }
#panel { width: 380px; flex: none; border-left: 1px solid var(--line); display: flex; flex-direction: column; background: #fff; }
.empty-state { max-width: 900px; background: #fff; border: 2px dashed #c9c9c3; border-radius: 12px; padding: 48px 24px; text-align: center; line-height: 1.7; }
.empty-state .big { font-size: 40px; line-height: 1; margin-bottom: 8px; }
.empty-state p { margin: 0 0 8px; }
.empty-state .btn { margin-top: 8px; height: 34px; padding: 0 18px; font-size: 13px; }
[hidden] { display: none !important; }

#plot_wrap { background: #fff; border: 1px solid var(--line); border-radius: 10px; padding: 8px; max-width: 900px; }
#plot { display: block; width: 100%; height: auto; }
#warns { max-width: 900px; }
#warns .w { color: var(--danger); font-size: 12.5px; margin-top: 8px; line-height: 1.6; }
#warns .i { color: var(--muted); font-size: 12.5px; margin-top: 8px; }

/* 回帰直線の結果 */
#below { max-width: 900px; margin-top: 16px; }
#below h3 { font-size: 13px; margin: 0 0 6px; display: flex; align-items: center; gap: 8px; }
#below h3 .btn { height: 26px; font-weight: normal; }
.tbl { border-collapse: collapse; background: #fff; font-size: 12.5px; font-variant-numeric: tabular-nums; }
.tbl th, .tbl td { border: 1px solid var(--line); padding: 4px 8px; text-align: right; white-space: nowrap; }
.tbl th { background: #f1f1ee; font-weight: 600; color: #444; }
.tbl td:first-child, .tbl th:first-child { text-align: left; }
.scroll { overflow-x: auto; }
.cap { color: var(--muted); font-size: 12px; line-height: 1.6; margin-top: 6px; }

/* データの表 */
#data_box { max-width: 900px; margin-top: 20px; background: #fff; border: 1px solid var(--line); border-radius: 10px; padding: 8px 12px; }
#data_box summary { cursor: pointer; font-weight: 600; padding: 4px 0; }
#data_sum { color: var(--muted); font-weight: normal; font-size: 12px; }
#data_tabs { display: flex; gap: 4px; flex-wrap: wrap; align-items: center; margin: 8px 0; }
#data_tabs .seg.mode { width: auto; }
#data_tabs .seg.mode button { padding: 0 10px; height: 28px; border-radius: 0; border-top: none; border-bottom: none; border-left: none; }
#data_tabs button { border: 1px solid #d3d3ce; background: #fff; border-radius: 6px; padding: 3px 10px; cursor: pointer; font: inherit; font-size: 12px; }
#data_tabs button.on { background: var(--accent-soft); color: var(--accent); border-color: var(--accent); }
#data_table .scroll { max-height: 420px; overflow: auto; border: 1px solid var(--line); }
#data_table .tbl { border: none; }
#data_table .tbl th { position: sticky; top: 0; z-index: 1; }
#data_table td[contenteditable] { outline: none; min-width: 60px; }
#data_table td[contenteditable]:focus { background: var(--accent-soft); box-shadow: inset 0 0 0 2px var(--accent); }
#data_table td.txt { text-align: left; color: #555; }
#data_table td.bad { background: #fdecec; }
#data_table td.rn { color: var(--muted); background: #fafaf8; text-align: right; }
#data_table .del { border: none; background: none; color: var(--muted); cursor: pointer; padding: 0 4px; }
#data_table .del:hover { color: var(--danger); }
/* 元のファイル(範囲を選ぶ) */
.rawbar { background: #f7f7f5; border: 1px solid var(--line); border-radius: 8px; padding: 8px 10px; margin-bottom: 8px; line-height: 1.6; }
.rawbar .row { gap: 8px; }
.usedmark { color: #138a5e; font-weight: 600; }
.rawgrid { user-select: none; }
.rawgrid td { text-align: left; color: #333; min-width: 56px; max-width: 220px; overflow: hidden; text-overflow: ellipsis; cursor: cell; }
.rawgrid th.ch { cursor: pointer; text-align: center; }
.rawgrid th.ch:hover { background: var(--accent-soft); color: var(--accent); }
.rawgrid td.used { background: #eaf7f0; }
.rawgrid td.head { font-weight: 700; }
.rawgrid td.sel { background: #d6e6fa; box-shadow: inset 0 0 0 1px #9cc0ee; }

/* 右の設定欄 */
#tabs { display: flex; border-bottom: 1px solid var(--line); padding: 0 8px; flex: none; }
#tabs button { flex: 1; border: none; background: none; padding: 10px 4px 8px; cursor: pointer; font: inherit; font-size: 12.5px; color: var(--muted);
               border-bottom: 2px solid transparent; margin-bottom: -1px; }
#tabs button.on { color: var(--accent); border-bottom-color: var(--accent); font-weight: 600; }
#tab_body { flex: 1; overflow-y: auto; padding: 14px 16px 30px; }
.card { border: 1px solid var(--line); border-radius: 10px; padding: 10px 12px; margin-bottom: 12px; }
.card h4 { margin: 0 0 8px; font-size: 13px; display: flex; align-items: center; gap: 6px; }
.card h4 .nm { flex: 1; min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.fld2 { display: block; margin-bottom: 10px; }
.fld2 > span { display: block; font-size: 12px; color: var(--muted); margin-bottom: 3px; }
.fld2 input[type=text], .fld2 select, .fld2 input[type=number] { width: 100%; }
input[type=text] { font: inherit; height: 30px; padding: 0 8px; border: 1px solid #d3d3ce; border-radius: 6px; background: #fff; }
input[type=text]:focus, select:focus, input[type=number]:focus { outline: 2px solid var(--accent-soft); border-color: var(--accent); }
.checks { display: flex; flex-direction: column; gap: 2px; max-height: 180px; overflow-y: auto; }
.checks label, label.ck { display: flex; align-items: center; gap: 6px; padding: 3px 0; cursor: pointer; }
.swatch { width: 10px; height: 10px; border-radius: 50%; flex: none; }
.sub { font-size: 12px; color: var(--muted); line-height: 1.6; }
.warn { color: var(--danger); font-size: 12px; margin-top: 4px; }
.tip-box { background: #eef5fd; border-radius: 8px; padding: 8px 10px; font-size: 12px; line-height: 1.8; margin: 4px 0 10px; }
#drop { border: 2px dashed #c9c9c3; border-radius: 10px; padding: 16px; text-align: center; color: var(--muted); margin-bottom: 14px; cursor: pointer; line-height: 1.7; }
#drop:hover, #drop.over { border-color: var(--accent); background: var(--accent-soft); color: var(--accent); }
#drop b { color: var(--ink); }
details.gear { margin-bottom: 8px; }
details.gear summary { cursor: pointer; font-size: 12px; color: var(--muted); }
details.gear > div { padding: 8px 0 2px; }
#drop_cover { position: fixed; inset: 0; display: none; align-items: center; justify-content: center; background: rgba(42,120,214,.12);
              border: 3px dashed var(--accent); font-size: 18px; color: var(--accent); z-index: 30; pointer-events: none; }
#drop_cover.show { display: flex; }

@media (max-width: 900px) {
  #sc { flex-direction: column; overflow-y: auto; }
  #left { overflow: visible; }
  #panel { width: auto; border-left: none; border-top: 1px solid var(--line); }
  #tab_body { overflow: visible; }
}