:root {
  color-scheme: light;
  --font: system-ui, -apple-system, "Segoe UI", "Apple SD Gothic Neo", "Malgun Gothic", sans-serif;
  --page: #f9f9f7; --surface: #fcfcfb; --surface-2: #f3f2ef;
  --text-primary: #0b0b0b; --text-secondary: #52514e; --muted: #898781;
  --grid: #e1e0d9; --axis: #c3c2b7; --border: rgba(11,11,11,0.10);
  --tooltip-bg: #ffffff; --accent: #2a78d6;
  --good: #006300; --bad: #d03b3b;
  --series-1: #2a78d6; --series-2: #eb6834; --series-3: #1baf7a; --series-4: #eda100;
  --series-5: #e87ba4; --series-6: #008300; --series-7: #6250d6; --series-8: #e34948;
  --seq-0: #f3f2ef; --seq-1: #cde2fb; --seq-2: #9ec5f4; --seq-3: #6da7ec; --seq-4: #3987e5; --seq-5: #256abf; --seq-6: #184f95;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    color-scheme: dark;
    --page: #0d0d0d; --surface: #1a1a19; --surface-2: #232321;
    --text-primary: #f0efec; --text-secondary: #c3c2b7; --muted: #898781;
    --grid: #2c2c2a; --axis: #383835; --border: rgba(255,255,255,0.10);
    --tooltip-bg: #232321; --accent: #3987e5; --good: #0ca30c; --bad: #e66767;
    --series-1: #3987e5; --series-2: #d95926; --series-3: #199e70; --series-4: #c98500;
    --series-5: #d55181; --series-6: #008300; --series-7: #9085e9; --series-8: #e66767;
    --seq-0: #232321; --seq-1: #104281; --seq-2: #184f95; --seq-3: #1c5cab; --seq-4: #256abf; --seq-5: #2a78d6; --seq-6: #3987e5;
  }
}
:root[data-theme="dark"] {
  color-scheme: dark;
  --page: #0d0d0d; --surface: #1a1a19; --surface-2: #232321;
  --text-primary: #f0efec; --text-secondary: #c3c2b7; --muted: #898781;
  --grid: #2c2c2a; --axis: #383835; --border: rgba(255,255,255,0.10);
  --tooltip-bg: #232321; --accent: #3987e5; --good: #0ca30c; --bad: #e66767;
  --series-1: #3987e5; --series-2: #d95926; --series-3: #199e70; --series-4: #c98500;
  --series-5: #d55181; --series-6: #008300; --series-7: #9085e9; --series-8: #e66767;
  --seq-0: #232321; --seq-1: #104281; --seq-2: #184f95; --seq-3: #1c5cab; --seq-4: #256abf; --seq-5: #2a78d6; --seq-6: #3987e5;
}

* { box-sizing: border-box; }
body { margin: 0; background: var(--page); color: var(--text-primary); font: 14px/1.55 var(--font); }
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
.muted { color: var(--muted); } .small { font-size: 12px; }
.num { font-variant-numeric: tabular-nums; text-align: right; white-space: nowrap; }

.top { background: var(--surface); border-bottom: 1px solid var(--border); position: sticky; top: 0; z-index: 5; }
.brandline { display: flex; gap: 10px; align-items: baseline; padding: 12px 20px 4px; }
.brandline .logo { color: var(--accent); }
.tabs { display: flex; gap: 2px; padding: 0 12px; overflow-x: auto; scrollbar-width: none; }
.tabs a { padding: 9px 12px; color: var(--text-secondary); border-bottom: 2px solid transparent; white-space: nowrap; }
.tabs a.on { color: var(--text-primary); border-bottom-color: var(--accent); font-weight: 600; }
.tabs a:hover { text-decoration: none; color: var(--text-primary); }

.banner { padding: 8px 20px; font-size: 13px; border-bottom: 1px solid var(--border); }
.banner.demo { background: var(--surface-2); color: var(--text-secondary); }
.banner.warn { background: #fff4e0; color: #6b4a00; }
@media (prefers-color-scheme: dark) { :root:not([data-theme="light"]) .banner.warn { background: #3a2c10; color: #f3d38f; } }

.wrap { max-width: 1240px; margin: 0 auto; padding: 16px 20px 40px; }
.filters { display: flex; flex-wrap: wrap; gap: 10px 16px; align-items: center; margin-bottom: 14px; }
.filters label { display: flex; gap: 6px; align-items: center; color: var(--text-secondary); font-size: 13px; }
select, input[type=text], input[type=password], button {
  font: inherit; color: var(--text-primary); background: var(--surface); border: 1px solid var(--border);
  border-radius: 8px; padding: 6px 10px; }
button { cursor: pointer; }
button.primary { background: var(--accent); border-color: var(--accent); color: #fff; }

.grid { display: grid; gap: 14px; grid-template-columns: repeat(12, 1fr); }
.card { background: var(--surface); border: 1px solid var(--border); border-radius: 12px; padding: 16px; min-width: 0; }
.card h2 { font-size: 15px; margin: 0 0 2px; }
.card .sub { color: var(--muted); font-size: 12px; margin: 0 0 12px; }
.c3 { grid-column: span 3; } .c4 { grid-column: span 4; } .c5 { grid-column: span 5; } .c6 { grid-column: span 6; }
.c7 { grid-column: span 7; } .c8 { grid-column: span 8; } .c12 { grid-column: span 12; }
@media (max-width: 900px) { .c3 { grid-column: span 6; } .c4, .c5, .c6, .c7, .c8 { grid-column: span 12; } }
@media (max-width: 520px) { .c3 { grid-column: span 12; } .wrap { padding: 12px 16px 32px; } }

.kpi .label { color: var(--text-secondary); font-size: 13px; }
.kpi .value { font-size: 28px; font-weight: 650; margin-top: 2px; }
.kpi .hint { color: var(--muted); font-size: 12px; }
.chart { position: relative; height: 300px; }
.chart.tall { height: 360px; } .chart.short { height: 240px; }

table { width: 100%; border-collapse: collapse; font-size: 13px; }
th { text-align: left; color: var(--muted); font-weight: 500; padding: 6px 8px; border-bottom: 1px solid var(--axis); white-space: nowrap; }
td { padding: 7px 8px; border-bottom: 1px solid var(--grid); vertical-align: top; }
tr:last-child td { border-bottom: 0; }
.scroll { overflow-x: auto; }

.feed { list-style: none; margin: 0; padding: 0; }
.feed li { padding: 10px 0; border-bottom: 1px solid var(--grid); }
.feed li:last-child { border-bottom: 0; }
.feed .t { font-weight: 550; color: var(--text-primary); }
.feed .meta { color: var(--muted); font-size: 12px; margin-top: 2px; display: flex; flex-wrap: wrap; gap: 4px 10px; }
.feed .desc { color: var(--text-secondary); font-size: 13px; margin-top: 3px; }
.chip { display: inline-block; padding: 1px 8px; border-radius: 999px; background: var(--surface-2); color: var(--text-secondary); font-size: 12px; }
.chip.on { background: var(--accent); color: #fff; }
.chip.dot::before { content: ""; display: inline-block; width: 8px; height: 8px; border-radius: 2px; margin-right: 5px; background: var(--c, var(--muted)); vertical-align: 0; }
.up { color: var(--bad); } .down { color: var(--good); }  /* 가격 상승=빨강, 하락=초록 (텍스트+화살표 병기) */
.tup { color: var(--good); } .tdown { color: var(--bad); }  /* 트렌드 상승=초록 */

.md { color: var(--text-primary); font-size: 14px; }
.md h2 { font-size: 14px; margin: 14px 0 4px; } .md h2:first-child { margin-top: 0; }
.md h3 { font-size: 13px; margin: 10px 0 4px; }
.md ul { margin: 4px 0; padding-left: 18px; } .md p { margin: 4px 0; }
.empty { color: var(--muted); padding: 24px 0; text-align: center; }

.heat td.cell { text-align: center; font-variant-numeric: tabular-nums; border: 2px solid var(--surface); border-radius: 4px; }
.status-ok { color: var(--good); } .status-error { color: var(--bad); }
.foot { max-width: 1240px; margin: 0 auto; padding: 0 20px 24px; }

.login { max-width: 360px; margin: 12vh auto; }
.login form { display: grid; gap: 10px; }