:root {
  --bg: #F7F5F1;
  --surface: #FFFFFF;
  --border: #E1DCD0;
  --text: #22201B;
  --muted: #74705F;
  --accent: #1B2A4A;
  --up: #B23A3A;
  --down: #2C5FA8;
  --good: #2E7D4F;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #14171D;
    --surface: #1A1E25;
    --border: #2B3038;
    --text: #E9E7DF;
    --muted: #98917F;
    --accent: #8FA3CE;
    --up: #D97575;
    --down: #7CA6E2;
    --good: #6FBE8F;
  }
}

* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: "Malgun Gothic", "Apple SD Gothic Neo", -apple-system, "Segoe UI", sans-serif;
  line-height: 1.6;
}
.mono { font-family: "Cascadia Code", "D2Coding", Consolas, ui-monospace, monospace; font-variant-numeric: tabular-nums; }

.topbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 14px 24px;
  border-bottom: 1px solid var(--border);
  background: var(--surface);
}
.brand { font-weight: 700; font-size: 18px; color: var(--text); text-decoration: none; }
.brand:hover { color: var(--accent); }
.topbar-left { display: flex; align-items: center; gap: 12px; }
.env-badge { font-family: monospace; font-size: 12px; font-weight: 700; padding: 3px 9px; border-radius: 4px; }
.env-badge-paper { background: color-mix(in srgb, var(--good) 18%, transparent); color: var(--good); }
.env-badge-real { background: color-mix(in srgb, var(--up) 18%, transparent); color: var(--up); }

.container { max-width: 960px; margin: 0 auto; padding: 24px; display: flex; flex-direction: column; gap: 24px; }

.snapshot { display: flex; gap: 24px; flex-wrap: wrap; }
.stat { background: var(--surface); border: 1px solid var(--border); border-radius: 6px; padding: 12px 18px; }
.stat-label { display: block; font-size: 12px; color: var(--muted); margin-bottom: 4px; }
.stat-value { font-family: monospace; font-size: 18px; font-variant-numeric: tabular-nums; }
.pnl-up { color: var(--up); }
.pnl-down { color: var(--down); }

.empty-note { color: var(--muted); font-size: 13px; }

table { width: 100%; border-collapse: collapse; background: var(--surface); border: 1px solid var(--border); border-radius: 6px; overflow: hidden; }
th, td { text-align: left; padding: 8px 12px; border-bottom: 1px solid var(--border); font-size: 13.5px; vertical-align: middle; }
thead th { font-size: 11.5px; text-transform: uppercase; letter-spacing: 0.04em; color: var(--muted); background: var(--bg); }
tbody tr:last-child td { border-bottom: none; }

.toggle-btn { border: 1px solid var(--border); border-radius: 4px; padding: 5px 12px; font-size: 12.5px; cursor: pointer; background: var(--surface); color: var(--muted); }
.toggle-btn.is-active { background: color-mix(in srgb, var(--good) 15%, var(--surface)); color: var(--good); border-color: var(--good); font-weight: 600; }

.filter-row { display: flex; gap: 16px; align-items: center; flex-wrap: wrap; }
.filter-row label { display: flex; align-items: center; gap: 6px; font-size: 13px; color: var(--muted); }
.filter-row select { padding: 5px 8px; border: 1px solid var(--border); border-radius: 4px; background: var(--surface); color: var(--text); font-size: 13px; }

.candle-chart-scroll {
  width: 100%;
  overflow-x: auto;
  position: relative;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--surface);
}
.candle-chart-scroll svg { display: block; }
.candle-hit { cursor: pointer; }
.chart-tooltip {
  position: absolute;
  pointer-events: none;
  display: none;
  background: var(--text);
  color: var(--bg);
  font-size: 12px;
  padding: 6px 9px;
  border-radius: 4px;
  white-space: nowrap;
  z-index: 5;
}

/* 탭 (라디오 버튼 해킹) */
.tabs { display: flex; flex-direction: column; gap: 16px; }
.tabs input[type="radio"] { position: absolute; opacity: 0; pointer-events: none; }
.tab-nav { display: flex; gap: 4px; border-bottom: 1px solid var(--border); }
.tab-nav label {
  padding: 8px 16px;
  font-size: 13.5px;
  color: var(--muted);
  cursor: pointer;
  border-bottom: 2px solid transparent;
  margin-bottom: -1px;
}
.tab-nav label:hover { color: var(--text); }
.tab-panel { display: none; flex-direction: column; gap: 20px; }

#tab-dashboard:checked ~ .tab-nav label[for="tab-dashboard"],
#tab-strategies:checked ~ .tab-nav label[for="tab-strategies"],
#tab-positions:checked ~ .tab-nav label[for="tab-positions"],
#tab-performance:checked ~ .tab-nav label[for="tab-performance"],
#tab-candle-graph:checked ~ .tab-nav label[for="tab-candle-graph"] {
  color: var(--accent);
  border-bottom-color: var(--accent);
  font-weight: 600;
}
#tab-dashboard:checked ~ #panel-dashboard,
#tab-strategies:checked ~ #panel-strategies,
#tab-positions:checked ~ #panel-positions,
#tab-performance:checked ~ #panel-performance,
#tab-candle-graph:checked ~ #panel-candle-graph {
  display: flex;
}