/* Backtest Evidence Review — editorial, document-like */
:root {
  --bg: #f8f7f4;
  --ink: #1c1c1c;
  --muted: #5c5c5c;
  --line: #d4d0c8;
  --accent: #1a4d6d;
  --accent-hover: #0f3549;
  --paper: #fff;
  --warn: #6b5a2e;
  --danger: #8b3a3a;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: Charter, "Bitstream Charter", "Sitka Text", Cambria, Georgia, serif;
  background: var(--bg);
  color: var(--ink);
  line-height: 1.65;
  font-size: 1.05rem;
}
a { color: var(--accent); text-decoration: underline; text-underline-offset: 2px; }
a:hover { color: var(--accent-hover); }
a:focus-visible, button:focus-visible, .cta:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}
.wrap { max-width: 640px; margin: 0 auto; padding: 40px 22px 72px; }
.wrap-wide { max-width: 720px; margin: 0 auto; padding: 40px 22px 72px; }
.nav {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 18px;
  margin-bottom: 48px;
  font-family: system-ui, sans-serif;
  font-size: 0.875rem;
}
.nav a { text-decoration: none; color: var(--muted); }
.nav a[aria-current="page"] { color: var(--ink); font-weight: 600; text-decoration: underline; }
.nav-buy { font-weight: 600; color: var(--ink); }
.site-title {
  font-family: system-ui, sans-serif;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  color: var(--muted);
  margin: 0 0 8px;
}
h1 {
  font-size: clamp(1.85rem, 4.5vw, 2.35rem);
  line-height: 1.2;
  margin: 0 0 20px;
  font-weight: 600;
  letter-spacing: -0.02em;
}
h2 {
  font-family: system-ui, sans-serif;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--muted);
  margin: 40px 0 12px;
  padding-top: 8px;
  border-top: 1px solid var(--line);
}
h2:first-of-type { border-top: none; padding-top: 0; margin-top: 32px; }
h2.section-plain {
  text-transform: none;
  letter-spacing: 0;
  font-size: 1.15rem;
  color: var(--ink);
  border-top: none;
  margin-top: 28px;
}
.lead { font-size: 1.15rem; margin: 0 0 24px; color: var(--ink); }
.lead-muted { color: var(--muted); font-size: 1rem; margin: 0 0 20px; }
.prose p { margin: 0 0 14px; }
.prose ul { margin: 0 0 14px; padding-left: 1.25rem; }
.prose li { margin: 6px 0; }
.card {
  background: var(--paper);
  border: 1px solid var(--line);
  padding: 20px 22px;
  margin: 20px 0;
}
.card-muted { background: transparent; }
.price-row {
  font-family: system-ui, sans-serif;
  margin: 24px 0 16px;
  padding: 16px 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
.price-row .n { font-size: 1.5rem; font-weight: 700; }
.price-row .s { color: var(--muted); font-size: 0.9rem; margin-left: 8px; }
.cta {
  display: inline-block;
  font-family: system-ui, sans-serif;
  background: var(--ink);
  color: var(--paper);
  text-decoration: none;
  font-weight: 600;
  font-size: 0.95rem;
  padding: 12px 20px;
  border: none;
  cursor: pointer;
  margin: 8px 0;
}
.cta:hover { background: #333; color: var(--paper); }
.cta-secondary {
  background: transparent;
  color: var(--ink);
  border: 1px solid var(--line);
}
.cta-secondary:hover { background: var(--paper); color: var(--ink); }
.cta.disabled {
  background: #ccc;
  color: #666;
  pointer-events: none;
}
.note { font-family: system-ui, sans-serif; font-size: 0.85rem; color: var(--muted); margin: 12px 0 0; }
.disclaimer {
  font-family: system-ui, sans-serif;
  font-size: 0.8rem;
  color: var(--muted);
  margin: 40px 0 0;
  padding-top: 20px;
  border-top: 1px solid var(--line);
}
.disclaimer.mb-0 { margin-bottom: 0; border-top: none; padding-top: 0; }
.foot {
  font-family: system-ui, sans-serif;
  margin-top: 28px;
  font-size: 0.8rem;
  color: var(--muted);
}
.foot a { color: var(--muted); }
.sample-snippet {
  font-family: ui-monospace, "Cascadia Code", monospace;
  font-size: 0.82rem;
  background: #f0eeea;
  border: 1px solid var(--line);
  padding: 14px 16px;
  margin: 16px 0;
  line-height: 1.5;
}
.sample-snippet dt { color: var(--muted); display: inline; }
.sample-snippet dd { display: inline; margin: 0 0 0 4px; }
.sample-snippet dd::after { content: ""; display: block; margin-bottom: 6px; }
.verdict-inline {
  font-family: system-ui, sans-serif;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--danger);
}
.byline {
  font-family: system-ui, sans-serif;
  font-size: 0.9rem;
  color: var(--muted);
  margin: 0 0 28px;
}
.list-none { list-style: none; padding: 0; }
code, .mono { font-family: ui-monospace, monospace; font-size: 0.88em; }
.steps { counter-reset: step; list-style: none; padding: 0; margin: 0; font-family: system-ui, sans-serif; font-size: 0.95rem; }
.steps li { counter-increment: step; padding-left: 2rem; position: relative; margin: 12px 0; }
.steps li::before {
  content: counter(step) ".";
  position: absolute;
  left: 0;
  color: var(--muted);
  font-weight: 600;
}
table.data {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
  font-family: system-ui, sans-serif;
}
table.data th, table.data td {
  border: 1px solid var(--line);
  padding: 8px 10px;
  text-align: left;
}
table.data th { color: var(--muted); font-weight: 600; background: #f0eeea; }
label { display: block; margin: 14px 0 6px; font-weight: 600; font-family: system-ui, sans-serif; }
input[type="text"], input[type="email"], input[type="url"], textarea, select {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid var(--line);
  background: var(--paper);
  color: var(--ink);
  font: inherit;
  font-family: system-ui, sans-serif;
}
textarea { min-height: 100px; resize: vertical; }
.checkbox-row { display: flex; gap: 10px; align-items: flex-start; margin: 12px 0; font-family: system-ui, sans-serif; font-size: 0.95rem; }
.checkbox-row input { margin-top: 4px; width: auto; }
.checkbox-label { margin: 0; font-weight: 400; }
.mail-body { width: 100%; font-family: ui-monospace, monospace; font-size: 0.85rem; white-space: pre-wrap; padding: 12px; border: 1px solid var(--line); background: #f0eeea; color: var(--ink); }
h2.mt-0 { margin-top: 0; border-top: none; padding-top: 0; }
.verdict-tag {
  display: inline-block;
  padding: 4px 10px;
  font-family: system-ui, sans-serif;
  font-size: 0.85rem;
  font-weight: 600;
  background: #f5eaea;
  color: var(--danger);
  border: 1px solid #e0c4c4;
}
li.muted { color: var(--muted); }
.kicker { font-family: system-ui, sans-serif; font-size: 0.8rem; color: var(--muted); margin: 0 0 8px; }
@media (max-width: 480px) {
  .wrap, .wrap-wide { padding: 28px 16px 56px; }
  .nav { gap: 6px 14px; margin-bottom: 36px; }
  .price-row { display: flex; flex-direction: column; gap: 4px; }
  .price-row .s { margin-left: 0; max-width: 28rem; }
  .cta {
    display: block;
    width: 100%;
    text-align: center;
    padding: 14px 16px;
    margin: 10px 0;
  }
  .cta-secondary { margin-top: 4px; }
}
@media (max-width: 390px) {
  .nav {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 8px 12px;
  }
  .nav-buy {
    grid-column: 1 / -1;
    justify-self: start;
    padding-top: 4px;
    border-top: 1px solid var(--line);
    width: 100%;
  }
  h1 { font-size: 1.65rem; }
  .lead { font-size: 1.05rem; }
}