:root {
  --bg: #f6f7f9; --card: #ffffff; --ink: #1d2433; --muted: #6b7385; --line: #e3e6ec; --grid: #eceef2;
  --pos: #16803c; --neg: #c62828; --warn: #b26a00; --accent: #2457c5;
  --blue: #2563eb; --orange: #ea7a12; --purple: #7c3aed;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #12151b; --card: #1b1f27; --ink: #e8ebf1; --muted: #9aa3b5; --line: #2a303b; --grid: #262b35;
    --pos: #4ade80; --neg: #f87171; --warn: #fbbf24; --accent: #7aa2ff;
    --blue: #60a5fa; --orange: #fb923c; --purple: #a78bfa;
  }
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--ink); font: 15px/1.6 'IBM Plex Sans Thai', system-ui, sans-serif; }
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
.top { display: flex; align-items: center; gap: 20px; padding: 12px 16px; background: var(--card); border-bottom: 1px solid var(--line); position: sticky; top: 0; z-index: 5; flex-wrap: wrap; }
.brand { font-weight: 600; font-size: 18px; color: var(--ink); }
.top nav { display: flex; gap: 14px; flex-wrap: wrap; }
.top nav a { color: var(--muted); padding: 4px 0; border-bottom: 2px solid transparent; }
.top nav a.on { color: var(--ink); border-color: var(--accent); }
main { max-width: 1100px; margin: 0 auto; padding: 16px; }
h1 { font-size: 24px; margin: 8px 0 2px; font-weight: 600; }
h2 { font-size: 18px; margin: 28px 0 10px; }
h3 { font-size: 15px; margin: 0 0 10px; font-weight: 600; }
.muted { color: var(--muted); }
.pos { color: var(--pos); } .neg { color: var(--neg); } .warn { color: var(--warn); }
.card { background: var(--card); border: 1px solid var(--line); border-radius: 10px; padding: 16px; }
.grid { display: grid; gap: 12px; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); margin-top: 14px; }
.grid.two { grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); }
.card.stock { color: var(--ink); display: block; }
.card.stock:hover { border-color: var(--accent); text-decoration: none; }
.row { display: flex; justify-content: space-between; align-items: center; }
.sym { font-size: 18px; }
.price { font-size: 26px; font-weight: 600; margin: 6px 0 0; }
.price small { font-size: 13px; font-weight: 400; color: var(--muted); }
dl { display: grid; grid-template-columns: auto 1fr; gap: 2px 12px; margin: 10px 0 0; font-size: 14px; }
dt { color: var(--muted); } dd { margin: 0; text-align: right; }
.facts dd { text-align: right; }
.badge { font-size: 12px; padding: 2px 8px; border-radius: 99px; font-weight: 500; vertical-align: middle; }
.badge.up { background: color-mix(in srgb, var(--pos) 15%, transparent); color: var(--pos); }
.badge.down { background: color-mix(in srgb, var(--neg) 15%, transparent); color: var(--neg); }
.badge.flat { background: color-mix(in srgb, var(--muted) 15%, transparent); color: var(--muted); }
.chartcard { margin: 14px 0 12px; }
.chartbox { position: relative; height: 320px; margin-bottom: 16px; }
.chartbox.small { height: 140px; margin-bottom: 0; }
.notes { margin: 0; padding-left: 18px; } .notes li { margin-bottom: 6px; }
.tablewrap { overflow-x: auto; background: var(--card); border: 1px solid var(--line); border-radius: 10px; }
table { border-collapse: collapse; width: 100%; font-size: 14px; white-space: nowrap; }
th, td { padding: 8px 12px; border-bottom: 1px solid var(--line); text-align: left; }
th { color: var(--muted); font-weight: 500; cursor: pointer; user-select: none; background: var(--card); position: sticky; top: 0; }
td.r, th.r { text-align: right; font-variant-numeric: tabular-nums; }
tbody tr:hover { background: color-mix(in srgb, var(--accent) 6%, transparent); }
.filters { display: flex; gap: 16px; margin: 12px 0; flex-wrap: wrap; }
.help { margin-top: 12px; padding: 10px 16px; } .help summary { cursor: pointer; } .help ul { margin: 8px 0 0; padding-left: 18px; }
.login { max-width: 320px; margin: 60px auto; display: grid; gap: 10px; }
.login input, .login button { font: inherit; padding: 10px; border-radius: 8px; border: 1px solid var(--line); background: var(--bg); color: var(--ink); }
.login button { background: var(--accent); color: #fff; border: 0; cursor: pointer; }
footer { color: var(--muted); font-size: 13px; text-align: center; margin: 32px 0 8px; }
@media (max-width: 600px) { .chartbox { height: 240px; } h1 { font-size: 21px; } }