:root {
  --bg: #f6f4ee;
  --bg-raised: #ffffff;
  --ink: #1b1d22;
  --ink-muted: #5c6068;
  --ink-faint: #8b8f97;
  --line: #dcd8cd;
  --accent: #2f7d76;
  --accent-ink: #ffffff;
  --up: #c23b3b;
  --down: #2f8f5b;
  --ma5: #e09123;
  --chip-bg: #ece8dc;
  --shadow: 0 1px 2px rgba(20,20,15,0.06), 0 8px 24px -12px rgba(20,20,15,0.18);
  color-scheme: light;
}
:root[data-theme="dark"] {
  --bg: #0d1016; --bg-raised: #151922; --ink: #e7e6e1; --ink-muted: #9a9ea7; --ink-faint: #656b76;
  --line: #262b36; --accent: #4fc3b7; --accent-ink: #06201c; --up: #ff6b6b; --down: #4ade95; --ma5: #f6b84a;
  --chip-bg: #1c212c; --shadow: 0 1px 2px rgba(0,0,0,0.4), 0 12px 32px -16px rgba(0,0,0,0.6);
  color-scheme: dark;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #0d1016; --bg-raised: #151922; --ink: #e7e6e1; --ink-muted: #9a9ea7; --ink-faint: #656b76;
    --line: #262b36; --accent: #4fc3b7; --accent-ink: #06201c; --up: #ff6b6b; --down: #4ade95; --ma5: #f6b84a;
    --chip-bg: #1c212c; --shadow: 0 1px 2px rgba(0,0,0,0.4), 0 12px 32px -16px rgba(0,0,0,0.6);
    color-scheme: dark;
  }
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; background: var(--bg); color: var(--ink);
  font-family: -apple-system, "Segoe UI", "PingFang TC", "Noto Sans TC", system-ui, sans-serif;
  -webkit-font-smoothing: antialiased; }
body { overflow-x: hidden; }
.num { font-family: ui-monospace, "SF Mono", "Cascadia Mono", Menlo, Consolas, monospace; font-variant-numeric: tabular-nums; }

main { max-width: 1180px; margin: 0 auto; padding: 40px 24px 80px; }

.eyebrow { font-size: 12px; letter-spacing: 0.08em; text-transform: uppercase; color: var(--accent); font-weight: 700; margin-bottom: 10px; }
h1 { font-size: 28px; line-height: 1.25; margin: 0 0 10px; font-weight: 800; letter-spacing: -0.01em; text-wrap: balance; }
#summary { color: var(--ink-muted); font-size: 14.5px; line-height: 1.65; max-width: 72ch; margin: 0; }

.alert { margin-bottom: 18px; padding: 12px 16px; border-radius: 10px; background: #fdecea; border: 1px solid #f3b7ae;
  color: #8a2f22; font-size: 13.5px; font-weight: 600; }
:root[data-theme="dark"] .alert { background: #3a1c18; border-color: #6e3128; color: #ffb4a6; }

header.page { display: flex; justify-content: space-between; gap: 24px; align-items: flex-end; flex-wrap: wrap; }

.stats-bar { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px; background: var(--line);
  border: 1px solid var(--line); border-radius: 12px; overflow: hidden; margin-top: 22px; box-shadow: var(--shadow); }
@media (max-width: 700px) { .stats-bar { grid-template-columns: repeat(2, 1fr); } }
.stat-tile { background: var(--bg-raised); padding: 14px 18px; }
.stat-label { font-size: 11px; letter-spacing: 0.05em; text-transform: uppercase; color: var(--ink-faint); font-weight: 700; margin-bottom: 6px; }
.stat-value { font-size: 19px; font-weight: 800; color: var(--ink); font-variant-numeric: tabular-nums; }
.stat-value.accent { color: var(--accent); }
.stat-sub { font-size: 11.5px; color: var(--ink-faint); margin-top: 2px; }

.tabs { display: flex; gap: 4px; margin-top: 26px; border-bottom: 1px solid var(--line); }
.tab-btn { background: none; border: none; padding: 10px 4px; margin-right: 22px; cursor: pointer;
  font-size: 14.5px; font-weight: 700; color: var(--ink-faint); position: relative; font-family: inherit; }
.tab-btn.active { color: var(--ink); }
.tab-btn.active::after { content: ""; position: absolute; left: 0; right: 0; bottom: -1px; height: 2px; background: var(--accent); }
.tab-panel { display: none; }
.tab-panel.active { display: block; }

.panel { background: var(--bg-raised); border: 1px solid var(--line); border-radius: 14px;
  box-shadow: var(--shadow); padding: 20px 22px; margin-top: 18px; }

.controls { display: flex; flex-wrap: wrap; gap: 18px 28px; align-items: flex-end; }
.control-group { display: flex; flex-direction: column; gap: 8px; min-width: 190px; }
.control-group.grow { flex: 1; min-width: 220px; }
.control-label { font-size: 11px; letter-spacing: 0.06em; text-transform: uppercase; color: var(--ink-faint); font-weight: 700; }

input[type="search"], input[type="date"], select { background: var(--bg); border: 1px solid var(--line); border-radius: 8px;
  padding: 9px 12px; font-size: 13.5px; color: var(--ink); outline: none; font-family: inherit; }
input[type="search"]:focus, input[type="date"]:focus, select:focus { border-color: var(--accent); }
.date-range-row { display: flex; align-items: center; gap: 6px; }
.date-range-row span { color: var(--ink-faint); font-size: 12px; }
.link-btn { background: none; border: none; color: var(--accent); font-size: 12px; font-weight: 700;
  cursor: pointer; padding: 0; text-decoration: underline; text-underline-offset: 2px; }

.result-count { margin-top: 16px; font-size: 13px; color: var(--ink-faint); }
.result-count b { color: var(--ink); }
.toggle { display:flex;align-items:center;gap:7px;font-size:13px;color:var(--ink-muted);padding-bottom:9px;white-space:nowrap }
.toggle input { accent-color:var(--accent) }
.match-badge{display:inline-block;padding:3px 7px;border-radius:999px;font-size:11px;font-weight:700;background:var(--chip-bg);color:var(--ink-muted)}
.match-badge.yes{background:#dcefe6;color:#176b4d}

table { width: 100%; border-collapse: collapse; font-size: 13.5px; }
thead th { text-align: left; font-size: 11px; letter-spacing: 0.05em; text-transform: uppercase;
  color: var(--ink-faint); font-weight: 700; padding: 10px 10px; border-bottom: 1px solid var(--line);
  position: sticky; top: 0; background: var(--bg-raised); }
th.num, td.num { text-align: right; }
tbody tr.row { cursor: pointer; border-bottom: 1px solid var(--line); }
tbody tr.row:hover { background: var(--chip-bg); }
tbody tr.row.expanded { background: var(--chip-bg); }
td { padding: 10px; vertical-align: middle; }
.stock-cell { display: flex; flex-direction: column; gap: 2px; }
.stock-name { font-weight: 700; }
.stock-id { font-size: 11.5px; color: var(--ink-faint); }
.market-chip { display:inline-block;padding:3px 7px;border-radius:999px;background:var(--chip-bg);font-size:10.5px;font-weight:800;color:var(--ink-muted) }
.chevron { transition: transform .15s; color: var(--ink-faint); }
tr.row.expanded .chevron { transform: rotate(90deg); color: var(--accent); }

tr.detail-row td { padding: 0; border-bottom: 1px solid var(--line); }
.detail-inner { padding: 18px 10px 24px; }
.detail-grid { display: grid; grid-template-columns: 1.6fr 1fr; gap: 24px; align-items: start; }
@media (max-width: 760px) { .detail-grid { grid-template-columns: 1fr; } }

.chart-box { background: var(--bg); border: 1px solid var(--line); border-radius: 10px; padding: 14px; position: relative; }
.chart-title { font-size: 12px; color: var(--ink-faint); font-weight: 700; margin-bottom: 8px; text-transform: uppercase; letter-spacing: 0.04em; }
canvas { display: block; width: 100%; }
.chart-loading { font-size: 12.5px; color: var(--ink-faint); padding: 12px 0; }
.tooltip { position: absolute; pointer-events: none; background: var(--ink); color: var(--bg);
  font-size: 11.5px; padding: 6px 9px; border-radius: 6px; line-height: 1.5;
  opacity: 0; transform: translate(-50%, -110%); transition: opacity .1s; white-space: nowrap; z-index: 5; }
:root[data-theme="dark"] .tooltip { background: #e7e6e1; color: #0d1016; }
@media (prefers-color-scheme: dark) { :root:not([data-theme="light"]) .tooltip { background: #e7e6e1; color: #0d1016; } }

.legend-row { display: flex; gap: 16px; margin-top: 10px; font-size: 11.5px; color: var(--ink-muted); }
.legend-item { display: flex; align-items: center; gap: 6px; }
.swatch { width: 10px; height: 10px; border-radius: 2px; flex: none; }
.swatch.up { background: var(--up); }
.swatch.down { background: transparent; border: 2px solid var(--down); }
.swatch.ma5 { width:14px;height:3px;border-radius:2px;background:var(--ma5); }

.fin-box { background: var(--bg); border: 1px solid var(--line); border-radius: 10px; padding: 16px; }
.fin-stat-label { font-size: 11px; letter-spacing: 0.05em; text-transform: uppercase; color: var(--ink-faint); font-weight: 700; margin-bottom: 6px; }
.fin-stat-value { font-size: 24px; font-weight: 800; color: var(--ink); }
.fin-stat-value.muted { color: var(--ink-faint); font-size: 16px; font-weight: 700; }
.fin-note { font-size: 12px; color: var(--ink-faint); margin-top: 14px; line-height: 1.6; border-top: 1px solid var(--line); padding-top: 12px; }
.fin-note code { background: var(--chip-bg); padding: 1px 5px; border-radius: 4px; font-size: 11px; }

.theme-toggle { position: fixed; top: 20px; right: 20px; z-index: 50; background: var(--bg-raised);
  border: 1px solid var(--line); border-radius: 999px; width: 38px; height: 38px; display: flex;
  align-items: center; justify-content: center; cursor: pointer; box-shadow: var(--shadow); color: var(--ink-muted); font-size: 16px; }

.note { margin-top: 32px; padding-top: 20px; border-top: 1px solid var(--line); font-size: 12px; color: var(--ink-faint); line-height: 1.7; }
.empty-state { padding: 40px 10px; text-align: center; color: var(--ink-faint); font-size: 14px; }

.pct-row { display: flex; gap: 4px; flex-wrap: wrap; }
.pct-cell { flex: 1 1 50px; text-align: center; padding: 3px 4px 4px; border-radius: 6px;
  background: var(--chip-bg); font-weight: 700; color: var(--up); font-size: 12px; }
.pct-cell .pct-day { display: block; font-size: 8.5px; font-weight: 700; color: var(--ink-faint); text-transform: uppercase; margin-bottom: 1px; }
.pct-cell .pct-price { display: block; font-size: 11.5px; font-weight: 700; color: var(--ink); margin-bottom: 1px; }
.pct-cell.limit-up { background: var(--up); color: #fff; box-shadow: 0 2px 8px color-mix(in srgb, var(--up) 35%, transparent); }
.pct-cell.limit-up .pct-day, .pct-cell.limit-up .pct-price { color: #fff; }

/* Mobile-first card layout */
@media (max-width: 720px) {
  main { padding: 18px 12px 56px; }
  .theme-toggle { top: 12px; right: 12px; width: 34px; height: 34px; }
  header.page { padding-right: 42px; }
  h1 { font-size: 24px; }
  #summary { font-size: 13px; }
  .stats-bar { grid-template-columns: repeat(2,minmax(0,1fr)); margin-top:16px; }
  .stat-tile { padding: 12px; min-width:0; }
  .stat-value { font-size:16px;overflow-wrap:anywhere; }
  .stat-sub { display:none; }
  .tabs { position:sticky;top:0;z-index:20;background:var(--bg);padding-top:8px;margin-top:18px; }
  .tab-btn { flex:1;margin:0;text-align:center;padding:12px 4px; }
  .panel { margin:12px -4px 0;padding:14px 10px;border-radius:12px; }
  .controls { display:grid;grid-template-columns:1fr;gap:12px; }
  .control-group,.control-group.grow { min-width:0;width:100%; }
  .date-range-row { display:grid;grid-template-columns:1fr 1fr;gap:7px; }
  .date-range-row select,.date-range-row input { min-width:0;width:100%; }
  .date-range-row span { display:none; }
  .date-range-row .link-btn { justify-self:start;padding:6px 0; }
  input[type="search"],input[type="date"],select { min-height:42px;width:100%;font-size:16px; }
  .toggle { padding:3px 0 7px; }
  .result-count { margin:10px 2px 2px; }
  #todayPanel>div,#historyPanel>div { overflow:visible!important; }
  table,tbody { display:block;width:100%; }
  thead { display:none; }
  tbody tr.row { display:grid;grid-template-columns:24px minmax(0,1fr) auto;gap:4px 8px;margin:12px 0;padding:14px 12px;border:1px solid var(--line);border-radius:12px;background:var(--bg-raised);box-shadow:var(--shadow); }
  tbody tr.row:hover,tbody tr.row.expanded { background:var(--bg-raised);border-color:var(--accent); }
  tr.row td { display:block;padding:0;border:0;text-align:left!important; }
  .expand-cell { grid-column:1;grid-row:1/3;align-self:center; }
  .identity-cell { grid-column:2;grid-row:1; }
  .market-cell { grid-column:3;grid-row:1;text-align:right!important; }
  .industry-cell { grid-column:2/4;grid-row:2;color:var(--ink-muted);font-size:12px; }
  .signal-date { grid-column:2/4;grid-row:3;color:var(--ink-faint);font-size:11.5px; }
  .signal-date::before { content:attr(data-label) ' · ';font-family:inherit; }
  .momentum-cell { grid-column:1/4;margin:9px 0 5px; }
  .pct-row { display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:6px; }
  .pct-cell { padding:7px 3px;font-size:13px; }
  .pct-cell .pct-day { font-size:9px;white-space:nowrap; }
  .pct-cell .pct-price { font-size:12px; }
  .metric-cell,.match-cell { grid-column:span 1;display:flex!important;justify-content:space-between;align-items:center;padding:8px!important;border-top:1px solid var(--line)!important;background:var(--bg);border-radius:7px;font-size:12px; }
  .metric-cell::before,.match-cell::before { content:attr(data-label);font-family:inherit;color:var(--ink-faint);font-size:10px;margin-right:8px; }
  .metric-volume,.metric-contract { grid-column:1/3; }
  .metric-current,.metric-ratio { grid-column:3; }
  .match-cell { grid-column:1/4; }
  tr.group-header { display:block;margin:20px 0 8px; }
  tr.group-header td { display:block;padding:10px 5px;border-bottom:2px solid var(--line); }
  tr.detail-row { display:block;margin:-14px 0 14px; }
  tr.detail-row td { display:block!important;width:100%; }
  .detail-inner { padding:12px 4px 16px; }
  .detail-grid { grid-template-columns:1fr;gap:12px; }
  .chart-box,.fin-box { padding:11px; }
  .note { margin-top:22px;font-size:11px; }
}

tr.group-header { cursor: pointer; background: var(--chip-bg); }
tr.group-header:hover td { background: var(--line); }
tr.group-header td { padding: 9px 10px; font-weight: 800; font-size: 13px; color: var(--ink);
  border-bottom: 1px solid var(--line); border-top: 1px solid var(--line); }
tr.group-header .group-chevron { display: inline-block; transition: transform .15s; margin-right: 6px; color: var(--accent); }
tr.group-header.collapsed .group-chevron { transform: rotate(-90deg); }
tr.group-header .group-count { font-weight: 600; color: var(--ink-faint); margin-left: 6px; font-size: 12px; }
.today-industry-header { cursor: default!important; }
.today-industry-header td { border-left:3px solid var(--accent); }