:root {
  --ink: #16181d;
  --ink-soft: #565b66;
  --accent: #16456f;
  --accent-dark: #0f3354;
  --paper: #fbfaf7;
  --paper-soft: #f2efe7;
  --line: #e4dfd4;
  --sample: #8a6212;
  --sample-bg: #f3e9d2;
  --serif: "Iowan Old Style", "Palatino Linotype", Palatino, "Book Antiqua", Georgia, serif;
  --sans: system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --max: 58rem;
  --prose: 44rem;
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font-family: var(--sans);
  color: var(--ink);
  background: var(--paper);
  line-height: 1.65;
  border-top: 3px solid var(--accent);
}
a { color: var(--accent); text-underline-offset: 2px; }

h1, h2, h3 { font-family: var(--serif); font-weight: 600; letter-spacing: -0.01em; }

/* Hero */
.hero { max-width: var(--max); margin: 0 auto; padding: 4.5rem 1.5rem 3.25rem; text-align: center; }
.brand { font-family: var(--sans); font-weight: 600; letter-spacing: 0.22em; text-transform: uppercase; color: var(--accent); font-size: 0.78rem; margin: 0 0 1.75rem; }
h1 { font-size: clamp(2rem, 4.5vw, 3rem); line-height: 1.12; margin: 0 auto 1.25rem; max-width: 18ch; }
.hero-sub { font-size: 1.15rem; color: var(--ink-soft); max-width: 40rem; margin: 0 auto 2.25rem; }

.cta-row { display: flex; gap: 0.75rem; justify-content: center; flex-wrap: wrap; margin-bottom: 1.25rem; }
.btn { display: inline-block; padding: 0.7rem 1.5rem; border-radius: 4px; text-decoration: none; font-weight: 600; font-size: 0.98rem; transition: background 0.15s ease, border-color 0.15s ease, transform 0.15s ease; }
.btn-primary { background: var(--accent); color: #fff; }
.btn-primary:hover { background: var(--accent-dark); transform: translateY(-1px); }
.btn-secondary { border: 1px solid var(--accent); color: var(--accent); }
.btn-secondary:hover { background: var(--paper-soft); transform: translateY(-1px); }
.fineprint { font-size: 0.85rem; color: var(--ink-soft); margin: 0; }

/* Sections */
.section { max-width: var(--max); margin: 0 auto; padding: 3.25rem 1.5rem; border-top: 1px solid var(--line); }
.section > p { max-width: var(--prose); color: var(--ink-soft); }
h2 { font-size: 1.7rem; margin: 0 0 1.25rem; }
h3 { font-size: 1.1rem; margin: 0 0 0.4rem; letter-spacing: 0; }

/* How it works */
.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.25rem; padding: 0; margin: 1.75rem 0 0; list-style: none; }
.steps li { background: var(--paper-soft); border: 1px solid var(--line); border-radius: 8px; padding: 1.5rem 1.4rem; }
.steps h3 { color: var(--accent); }
.steps p { margin: 0; color: var(--ink-soft); }

/* Methodology */
.criteria { padding-left: 1.15rem; max-width: var(--prose); }
.criteria li { margin-bottom: 0.7rem; }
.criteria li::marker { color: var(--accent); }
h3.sub { margin-top: 2.25rem; }
.conf-key { list-style: none; padding-left: 0; max-width: var(--prose); }
.conf-key li { margin-bottom: 0.5rem; }
.conf-key .conf { margin-right: 0.4rem; }

/* Sample alerts */
.alert-card { border: 1px solid var(--line); border-radius: 8px; padding: 1.4rem 1.4rem 1.1rem; margin-top: 1.4rem; background: #fff; }
.alert-card h3 { margin-top: 0; font-size: 1.15rem; }
.alert-card p { margin: 0.5rem 0; }
.alert-meta { display: flex; gap: 0.45rem; align-items: center; flex-wrap: wrap; margin: 0 0 0.6rem; font-size: 0.78rem; color: var(--ink-soft); }
.badge { font-family: var(--sans); background: #eef2f6; color: var(--accent-dark); border-radius: 4px; padding: 0.15rem 0.55rem; font-size: 0.72rem; font-weight: 600; letter-spacing: 0.02em; }
.badge-sample { background: var(--sample-bg); color: var(--sample); }
.badge-sale { background: #f6e2e2; color: #9b2c2c; }
.badge-buy { background: #e0efe1; color: #2c6b3a; }
.badge-ticker { background: var(--accent); color: #fff; font-weight: 700; letter-spacing: 0.03em; }
.alert-meta time { margin-left: auto; font-variant-numeric: tabular-nums; }
.alert-who { font-weight: 600; margin: 0.1rem 0 0.15rem; }
.alert-stats { color: var(--ink-soft); font-size: 0.9rem; font-variant-numeric: tabular-nums; margin: 0.15rem 0 0.85rem; }
.alert-footer { font-size: 0.9rem; margin-bottom: 0; }
.alert-footer .badge { margin: 0 0.05rem; }
.conf { display: inline-block; width: 0.62em; height: 0.62em; border-radius: 50%; vertical-align: middle; margin-right: 0.2rem; }
.conf-high { background: #2f9e44; }
.conf-mid { background: #d99a1c; }
.conf-low { background: #c0392b; }

/* Cluster member breakdown */
.alert-members { list-style: none; padding: 0; margin: 0.9rem 0 0.3rem; border-top: 1px solid var(--line); }
.alert-members li { padding: 0.55rem 0; border-bottom: 1px solid var(--line); }
.alert-members li:last-child { border-bottom: none; }
.member-who { display: block; font-weight: 600; font-size: 0.92rem; }
.member-trade { display: block; color: var(--ink-soft); font-size: 0.87rem; font-variant-numeric: tabular-nums; margin-top: 0.1rem; }
.member-new { background: var(--sample-bg); color: var(--sample); border-radius: 4px; padding: 0.05rem 0.45rem; font-size: 0.66rem; font-weight: 700; letter-spacing: 0.03em; margin-left: 0.45rem; text-transform: uppercase; }

/* Plans table */
.plans { width: 100%; border-collapse: collapse; margin: 1.75rem 0 2rem; }
.plans th, .plans td { padding: 0.75rem 0.85rem; border-bottom: 1px solid var(--line); text-align: left; vertical-align: top; }
.plans thead th { font-family: var(--sans); font-size: 0.78rem; text-transform: uppercase; letter-spacing: 0.08em; color: var(--ink-soft); font-weight: 600; }
.plans tbody th { font-weight: 600; white-space: nowrap; }
.plans tbody tr:last-child th, .plans tbody tr:last-child td { border-bottom: none; }

/* Footer */
.footer { border-top: 1px solid var(--line); background: var(--paper-soft); margin-top: 2.5rem; padding: 2.5rem 1.5rem; }
.footer p { max-width: var(--max); margin: 0 auto 0.85rem; font-size: 0.85rem; color: var(--ink-soft); }

/* Subtle page-load reveal — hero only */
@media (prefers-reduced-motion: no-preference) {
  .hero > * { opacity: 0; animation: rise 0.7s cubic-bezier(0.2, 0.7, 0.2, 1) forwards; }
  .hero .brand { animation-delay: 0.05s; }
  .hero h1 { animation-delay: 0.16s; }
  .hero-sub { animation-delay: 0.3s; }
  .hero .cta-row { animation-delay: 0.42s; }
  .hero .fineprint { animation-delay: 0.52s; }
}
@keyframes rise {
  from { opacity: 0; transform: translateY(12px); }
  to { opacity: 1; transform: none; }
}

@media (max-width: 640px) {
  .steps { grid-template-columns: 1fr; }
  .hero { padding-top: 3rem; }
  .alert-meta time { margin-left: 0; }
}