:root {
  --bg: #ffffff; --fg: #1a1a1a; --muted: #666; --line: #e5e5e5;
  --accent: #2962FF; --pos: #12862b; --neg: #d32f2f; --card: #fafafa;
}
* { box-sizing: border-box; }
body {
  margin: 0; font-family: -apple-system, "Segoe UI", Roboto, "Malgun Gothic", sans-serif;
  color: var(--fg); background: var(--bg); line-height: 1.6;
}
header { border-bottom: 1px solid var(--line); padding: 18px 20px; }
header h1 { margin: 0; font-size: 1.25rem; }
header .sub { color: var(--muted); font-size: .85rem; }
nav a { color: var(--accent); text-decoration: none; font-size: .9rem; margin-right: 14px; }
nav a:hover { text-decoration: underline; }
main { max-width: 1080px; margin: 0 auto; padding: 20px; }
.panel { background: var(--card); border: 1px solid var(--line); border-radius: 10px; padding: 16px; margin-bottom: 18px; }
.controls { display: flex; flex-wrap: wrap; gap: 16px; align-items: flex-end; }
.field { display: flex; flex-direction: column; gap: 4px; }
.field label { font-size: .8rem; color: var(--muted); }
.field input { padding: 6px 8px; border: 1px solid var(--line); border-radius: 6px; width: 120px; }
#strategy-box { display: flex; flex-wrap: wrap; gap: 10px 18px; margin-top: 6px; }
.strat-opt { font-size: .92rem; cursor: pointer; }
.strat-opt.deferred { color: var(--muted); }
.strat-opt.deferred em { color: #b26a00; font-style: normal; font-size: .8rem; }
button {
  background: var(--accent); color: #fff; border: 0; border-radius: 8px;
  padding: 9px 18px; font-size: .95rem; cursor: pointer;
}
button:hover { filter: brightness(1.08); }
.status { color: var(--muted); font-size: .85rem; margin: 6px 0; }
table { width: 100%; border-collapse: collapse; font-size: .9rem; overflow-x: auto; display: block; }
th, td { padding: 8px 10px; text-align: right; border-bottom: 1px solid var(--line); white-space: nowrap; }
th:first-child, td.strat { text-align: left; }
th { background: #f2f4f8; font-weight: 600; }
td.pos { color: var(--pos); } td.neg { color: var(--neg); }
.chart { width: 100%; min-height: 420px; }
h2 { font-size: 1.05rem; margin: 22px 0 10px; }
details { border: 1px solid var(--line); border-radius: 8px; padding: 10px 14px; margin: 14px 0; }
details summary { cursor: pointer; font-weight: 600; }
details ul { margin: 8px 0 0; padding-left: 18px; }
.disclaimer {
  background: #fff8e1; border: 1px solid #ffe082; border-radius: 8px;
  padding: 12px 14px; font-size: .85rem; color: #6d4c00; margin-top: 20px;
}
.hub-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 16px; margin: 18px 0; }
.hub-card {
  display: block; text-decoration: none; color: inherit;
  background: var(--card); border: 1px solid var(--line); border-radius: 12px;
  padding: 18px; transition: box-shadow .15s, transform .15s;
}
a.hub-card:hover { box-shadow: 0 6px 20px rgba(0,0,0,.08); transform: translateY(-2px); }
.hub-card h2 { margin: 0 0 8px; font-size: 1.1rem; }
.hub-card p { margin: 0 0 12px; color: var(--muted); font-size: .9rem; }
.hub-card.disabled { opacity: .6; }
.badge { font-size: .75rem; padding: 3px 10px; border-radius: 999px; font-weight: 600; }
.badge.live { background: #e6f4ea; color: var(--pos); }
.badge.soon { background: #f0f0f0; color: var(--muted); }
footer { color: var(--muted); font-size: .8rem; padding: 20px; text-align: center; }
@media (max-width: 640px) {
  .field input { width: 100%; }
  .controls { flex-direction: column; align-items: stretch; }
}