:root {
  --bg: #0b0e14;
  --card: #131722;
  --card-hover: #1a2030;
  --border: #1f2634;
  --text: #d8dee9;
  --muted: #7a869c;
  --up: #16c784;
  --down: #ea3943;
  --accent: #f5a623;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "PingFang TC", "Noto Sans TC", "Segoe UI", sans-serif;
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
}

.container { max-width: 1080px; margin: 0 auto; padding: 20px 16px 48px; }

header.site {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 4px;
  margin-bottom: 20px;
}
header.site h1 { font-size: 22px; letter-spacing: 1px; }
header.site h1 a { color: var(--text); text-decoration: none; }
header.site .updated { color: var(--muted); font-size: 12px; }

/* ---- 首頁卡片 ---- */
.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(230px, 1fr));
  gap: 12px;
}
.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 16px;
  text-decoration: none;
  color: var(--text);
  display: block;
  transition: background .15s, transform .15s;
}
.card:active, .card:hover { background: var(--card-hover); transform: translateY(-1px); }
.card .row1 { display: flex; justify-content: space-between; align-items: baseline; }
.card .symbol { font-size: 18px; font-weight: 700; letter-spacing: .5px; }
.card .change { font-size: 13px; font-weight: 600; }
.card .name {
  color: var(--muted); font-size: 12px; margin-top: 2px;
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.card .row2 { display: flex; justify-content: space-between; align-items: flex-end; margin-top: 14px; }
.card .price { font-size: 22px; font-weight: 700; font-variant-numeric: tabular-nums; }
.card .pe { text-align: right; color: var(--muted); font-size: 11px; line-height: 1.5; }
.card .pe b { color: var(--text); font-size: 14px; }
.up { color: var(--up); }
.down { color: var(--down); }

.zone {
  display: inline-block; margin-top: 10px; padding: 2px 8px;
  border-radius: 20px; font-size: 11px; font-weight: 600;
}
.zone-0 { background: rgba(22,199,132,.16); color: #16c784; }
.zone-1 { background: rgba(122,199,96,.16);  color: #7ac760; }
.zone-2 { background: rgba(245,166,35,.16);  color: #f5a623; }
.zone-3 { background: rgba(240,110,60,.16);  color: #f06e3c; }
.zone-4 { background: rgba(234,57,67,.16);   color: #ea3943; }

/* ---- 個股頁 ---- */
.back { color: var(--muted); text-decoration: none; font-size: 14px; }
.back:hover { color: var(--text); }

.stock-head { margin: 14px 0 20px; }
.stock-head .title { display: flex; align-items: baseline; gap: 10px; flex-wrap: wrap; }
.stock-head h2 { font-size: 26px; }
.stock-head .name { color: var(--muted); font-size: 14px; }
.stock-head .quote { display: flex; align-items: baseline; gap: 14px; margin-top: 8px; flex-wrap: wrap; }
.stock-head .price { font-size: 30px; font-weight: 700; font-variant-numeric: tabular-nums; }
.stock-head .meta { color: var(--muted); font-size: 13px; }
.stock-head .meta b { color: var(--text); }

.panel {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 16px;
  margin-bottom: 16px;
}
.panel h3 { font-size: 15px; margin-bottom: 4px; }
.panel .sub { color: var(--muted); font-size: 12px; margin-bottom: 8px; }

/* ---- 財務體質卡 ---- */
.stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 10px;
  margin-top: 10px;
}
.stat {
  background: rgba(255,255,255,.025);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 12px 12px 8px;
}
.stat .label { color: var(--muted); font-size: 12px; }
.stat .value { font-size: 24px; font-weight: 700; margin-top: 4px; font-variant-numeric: tabular-nums; }
.stat .delta { font-size: 11px; margin-top: 2px; color: var(--muted); }
.stat .delta b { font-weight: 600; }
.stat .spark { width: 100%; height: 46px; margin-top: 6px; }
.stat .chip {
  display: inline-block; margin-top: 4px; padding: 1px 8px;
  border-radius: 20px; font-size: 11px; font-weight: 600;
}
.lv-good    { background: rgba(22,199,132,.16); color: #16c784; }
.lv-mid     { background: rgba(245,166,35,.16); color: #f5a623; }
.lv-bad     { background: rgba(234,57,67,.16);  color: #ea3943; }
.lv-neutral { background: rgba(122,134,156,.16); color: #9aa6ba; }

#peChart { width: 100%; height: 400px; }
.sankey-scroll { overflow-x: auto; -webkit-overflow-scrolling: touch; }
#sankeyChart { width: 100%; min-width: 660px; height: 480px; }

.note { color: var(--muted); font-size: 12px; margin-top: 8px; line-height: 1.6; }
.error { color: var(--down); padding: 40px 0; text-align: center; }

footer { color: var(--muted); font-size: 11px; margin-top: 28px; line-height: 1.7; }

@media (max-width: 640px) {
  .container { padding: 14px 10px 40px; }
  .grid { grid-template-columns: 1fr 1fr; gap: 8px; }
  .card { padding: 12px; }
  .card .price { font-size: 18px; }
  .stock-head .price { font-size: 24px; }
  .stats { grid-template-columns: 1fr 1fr; gap: 8px; }
  .stat .value { font-size: 20px; }
  #peChart { height: 320px; }
  #sankeyChart { height: 420px; }
}