:root {
  color-scheme: light;
  --bg: #ffffff;
  --fg: #14161a;
  --muted: #5b6270;
  --accent: #1f5eff;
  --border: #e3e6ec;
  --card-bg: #f7f8fa;
  --badge-live-bg: #e6f4ea;
  --badge-live-fg: #1e7b34;
  --badge-soon-bg: #f1f0ff;
  --badge-soon-fg: #5b4de0;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  line-height: 1.55;
}

a { color: var(--accent); }

.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 24px;
  border-bottom: 1px solid var(--border);
  flex-wrap: wrap;
  gap: 12px;
}

.site-header .brand {
  display: flex;
  align-items: center;
  text-decoration: none;
  color: var(--fg);
}

.brand-logo {
  display: block;
  height: 36px;
  width: auto;
}

.site-header nav a {
  margin-left: 20px;
  text-decoration: none;
  color: var(--fg);
}

main {
  max-width: 880px;
  margin: 0 auto;
  padding: 32px 24px 64px;
}

.hero h1 { font-size: 2.1rem; margin-bottom: 8px; }
.lede { color: var(--muted); font-size: 1.05rem; }

.strategy-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 16px;
  margin-top: 16px;
}

.strategy-card {
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 18px;
  background: var(--card-bg);
}

.strategy-card h3 { margin: 0 0 8px; font-size: 1.1rem; }
.strategy-card h3 a { text-decoration: none; color: var(--fg); }
.card-link { display: inline-block; margin-top: 10px; font-size: 0.9rem; }

.badge {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 600;
  padding: 3px 8px;
  border-radius: 999px;
  margin-top: 4px;
}
.badge-live { background: var(--badge-live-bg); color: var(--badge-live-fg); }
.badge-soon { background: var(--badge-soon-bg); color: var(--badge-soon-fg); }

.newsletter-section { margin-top: 40px; }

.signup-form {
  margin-top: 24px;
  padding: 18px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--card-bg);
  max-width: 480px;
}
.signup-form label { display: block; font-weight: 600; margin-bottom: 8px; }
.form-hint { color: var(--muted); font-size: 0.9rem; margin: 0 0 10px; }
.signup-row { display: flex; gap: 8px; flex-wrap: wrap; }
.signup-row input {
  flex: 1 1 200px;
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: 6px;
  font-size: 1rem;
}
.signup-row button {
  padding: 10px 16px;
  background: var(--accent);
  color: #fff;
  border: none;
  border-radius: 6px;
  font-size: 1rem;
  cursor: pointer;
}
.signup-row button:disabled { opacity: 0.6; cursor: default; }
/* Honeypot: visually hidden from sighted users, off-screen rather than
   display:none/visibility:hidden so unsophisticated bots that skip those
   properties still fill it in. */
.hp-field { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }
.form-status { margin-top: 10px; color: var(--muted); font-size: 0.9rem; }

.strategy-facts { margin-top: 20px; }
.strategy-facts dt { font-weight: 600; margin-top: 12px; }
.strategy-facts dd { margin: 4px 0 0; color: var(--muted); }

.metric-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
  gap: 12px;
  margin: 16px 0 24px;
}
.metric {
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 12px;
  text-align: center;
}
.metric-label { display: block; font-size: 0.8rem; color: var(--muted); }
.metric-value { display: block; font-size: 1.3rem; font-weight: 700; }

.card-metric-row { display: flex; gap: 10px; margin: 10px 0; flex-wrap: wrap; }
.metric-compact { flex: 1 1 80px; padding: 8px; border-radius: 6px; }
.metric-compact .metric-value { font-size: 1.05rem; }

table.monthly-returns { border-collapse: collapse; width: 100%; margin: 12px 0 24px; }
table.monthly-returns th, table.monthly-returns td {
  text-align: left;
  padding: 6px 10px;
  border-bottom: 1px solid var(--border);
}

.equity-chart {
  margin: 12px 0 24px;
  padding: 12px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--card-bg);
}
.equity-chart svg { display: block; width: 100%; height: auto; }
.chart-line { stroke-width: 2; vector-effect: non-scaling-stroke; }
.chart-line-model { stroke: var(--accent); }
.chart-line-benchmark { stroke: var(--muted); stroke-dasharray: 4 3; }
.chart-line-paper { stroke: var(--badge-live-fg); }
.equity-chart figcaption { margin-top: 8px; color: var(--muted); font-size: 0.85rem; }
.legend-item { font-weight: 600; }
.legend-item::before {
  content: "";
  display: inline-block;
  width: 10px;
  height: 10px;
  margin-right: 4px;
  border-radius: 2px;
  vertical-align: middle;
}
.legend-model::before { background: var(--accent); }
.legend-benchmark::before { background: var(--muted); }

.disclosure { color: var(--muted); font-size: 0.85rem; }
.data-note { color: var(--muted); font-style: italic; }
.performance-disclaimer {
  font-style: italic;
  color: var(--muted);
  font-size: 0.85rem;
  max-width: 60ch;
  margin: 32px auto 0;
  padding-top: 16px;
  border-top: 1px solid var(--border);
}

.policy h2 { margin-top: 28px; }
.policy-updated { color: var(--muted); }

.site-footer {
  border-top: 1px solid var(--border);
  padding: 24px;
  color: var(--muted);
  font-size: 0.85rem;
  max-width: 880px;
  margin: 0 auto;
}
.site-footer p { margin: 4px 0; }

@media (max-width: 480px) {
  main { padding: 24px 16px 48px; }
  .site-header { padding: 12px 16px; }
}