:root {
  --paper: #f7f8f6;
  --ink: #16211f;
  --muted: #5c6b66;
  --rule: #d8ded9;
  --green: #0e7a52;
  --red: #b5483f;
  --mono: ui-monospace, "SF Mono", "Cascadia Mono", Menlo, Consolas, monospace;
  --serif: Georgia, "Times New Roman", serif;
  --sans: system-ui, -apple-system, "Segoe UI", sans-serif;
}
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 17px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
.wrap { max-width: 960px; margin: 0 auto; padding: 0 1.5rem; }

a { color: inherit; }
a:focus-visible, button:focus-visible {
  outline: 2px solid var(--green);
  outline-offset: 3px;
}

header.top {
  border-bottom: 1px solid var(--rule);
}
header.top .wrap {
  display: flex; align-items: baseline; justify-content: space-between;
  padding-top: 1.1rem; padding-bottom: 1.1rem; flex-wrap: wrap; gap: .6rem;
}
.brand {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--mono);
  font-size: 0.95rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  text-decoration: none;
  font-weight: 600;
}
.brand img { width: 28px; height: 28px; display: block; }
.brand .tld { color: var(--muted); font-weight: 400; }
nav.top-nav a {
  font-family: var(--mono);
  font-size: 0.8rem;
  letter-spacing: 0.06em;
  color: var(--muted);
  text-decoration: none;
  margin-left: 1.5rem;
}
nav.top-nav a:hover { color: var(--ink); }

.hero { padding: 5.5rem 0 4rem; border-bottom: 1px solid var(--rule); }
.page-hero { padding: 3.5rem 0 3rem; }
.eyebrow {
  font-family: var(--mono);
  font-size: 0.75rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--green);
  margin-bottom: 1.4rem;
}
h1 {
  font-family: var(--serif);
  font-weight: 400;
  font-size: clamp(2.4rem, 6vw, 4rem);
  line-height: 1.08;
  letter-spacing: -0.015em;
  max-width: 14em;
}
.page-hero h1 { font-size: clamp(2rem, 5vw, 3rem); }
.hero p.lede {
  margin: 1.6rem 0 2.2rem;
  max-width: 32em;
  color: var(--muted);
  font-size: 1.1rem;
}
.cta-row { display: flex; gap: 0.9rem; flex-wrap: wrap; align-items: center; }
.btn {
  display: inline-block;
  font-family: var(--mono);
  font-size: 0.9rem;
  letter-spacing: 0.04em;
  text-decoration: none;
  padding: 0.8rem 1.5rem;
  border: 1px solid var(--ink);
  transition: background 0.15s, color 0.15s;
}
.btn.primary { background: var(--ink); color: var(--paper); }
.btn.primary:hover { background: var(--green); border-color: var(--green); }
.btn.ghost:hover { background: var(--ink); color: var(--paper); }

.chart { margin-top: 4rem; }
.chart svg { display: block; width: 100%; height: auto; }
.chart-caption {
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  color: var(--muted);
  margin-top: 0.6rem;
  display: flex; justify-content: space-between; flex-wrap: wrap; gap: 0.5rem;
}
.equity-line {
  fill: none; stroke: var(--ink); stroke-width: 1.5;
}
@media (prefers-reduced-motion: no-preference) {
  .equity-line {
    stroke-dasharray: 1600; stroke-dashoffset: 1600;
    animation: draw 2.4s ease-out 0.3s forwards;
  }
  .marker { opacity: 0; animation: appear 0.4s ease-out forwards; }
  .marker:nth-of-type(1) { animation-delay: 1.0s; }
  .marker:nth-of-type(2) { animation-delay: 1.5s; }
  .marker:nth-of-type(3) { animation-delay: 2.0s; }
  .marker:nth-of-type(4) { animation-delay: 2.5s; }
  @keyframes draw { to { stroke-dashoffset: 0; } }
  @keyframes appear { to { opacity: 1; } }
}

.principles { padding: 4rem 0; border-bottom: 1px solid var(--rule); }
.principles .grid {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(15rem, 1fr)); gap: 2.5rem;
}
.principles h2 {
  font-family: var(--mono);
  font-size: 0.78rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--green);
  margin-bottom: 0.7rem;
  font-weight: 600;
}
.principles p { color: var(--muted); font-size: 0.98rem; }

.closing { padding: 5rem 0; text-align: center; border-bottom: 1px solid var(--rule); }
.closing h2 {
  font-family: var(--serif);
  font-weight: 400;
  font-size: clamp(1.6rem, 4vw, 2.3rem);
  margin-bottom: 1.8rem;
}

footer { padding: 2.2rem 0 3rem; }
footer .wrap {
  display: flex; justify-content: space-between; gap: 1.5rem; flex-wrap: wrap;
}
footer p, footer a {
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.05em;
  color: var(--muted);
}
footer .risk { max-width: 34em; }
footer nav a { margin-right: 1.2rem; }

/* --- content pages: prose, FAQ, pricing, glossary ------------------------- */
.prose { padding: 3rem 0 4rem; }
.prose > * + * { margin-top: 1.1rem; }
.prose h2 { font-size: 1.4rem; margin-top: 2.4rem; max-width: none; }
.prose p { max-width: 38em; color: var(--muted); }
.prose ul, .prose ol { max-width: 38em; color: var(--muted); padding-left: 1.2rem; }
.prose li { margin: .4rem 0; }
.prose li strong { color: var(--ink); }
.prose ol li { padding-left: .2rem; }
.prose code {
  font-family: var(--mono); font-size: .88em;
  background: rgba(22, 33, 31, .06); padding: .1em .35em; border-radius: 3px;
  color: var(--ink);
}

/* step-by-step guides: a warning that must not be skimmed past */
.warn {
  border-left: 3px solid var(--red);
  padding: .8rem 0 .8rem 1rem;
  max-width: 38em;
  color: var(--ink) !important;
}

.faq-list { padding: 1rem 0 4rem; }
.faq-list details { border-bottom: 1px solid var(--rule); padding: 1.1rem 0; }
.faq-list summary {
  cursor: pointer; list-style: none; font-weight: 600; font-size: 1.02rem;
  display: flex; justify-content: space-between; align-items: baseline; gap: 1rem;
}
.faq-list summary::-webkit-details-marker { display: none; }
.faq-list summary::after { content: "+"; color: var(--muted); font-size: 1.2rem; flex-shrink: 0; }
.faq-list details[open] summary::after { content: "\2212"; }
.faq-list .a { margin-top: .7rem; max-width: 38em; color: var(--muted); }

.plans { display: grid; grid-template-columns: repeat(auto-fit, minmax(16rem, 1fr)); gap: 2rem; margin: 2.5rem 0 3.5rem; }
.plan { border: 1px solid var(--rule); padding: 2rem; }
.plan.highlight { border-color: var(--green); }
.plan h3 { font-family: var(--mono); text-transform: uppercase; letter-spacing: .08em; font-size: .8rem; color: var(--green); }
.plan .price { font-family: var(--serif); font-size: 2.2rem; margin: .7rem 0 .2rem; }
.plan .price span { font-family: var(--mono); font-size: .8rem; color: var(--muted); }
.plan ul { list-style: none; margin-top: 1.3rem; }
.plan li { padding: .5rem 0; border-top: 1px solid var(--rule); font-size: .92rem; color: var(--muted); }
.plan li:first-child { border-top: none; }
.addons { max-width: 38em; color: var(--muted); margin: 0 0 3rem; }
.addons th, .addons td { text-align: left; padding: .5rem 0; font-size: .92rem; }
.addons th { font-family: var(--mono); text-transform: uppercase; font-size: .7rem; letter-spacing: .06em; color: var(--muted); border-bottom: 1px solid var(--rule); }
.addons td { border-bottom: 1px solid var(--rule); }

.pass { color: var(--green); font-weight: 600; }
.fail { color: var(--red); }

.glossary { padding-bottom: 4rem; }
.glossary dt { font-family: var(--mono); text-transform: uppercase; letter-spacing: .05em; font-size: .85rem; color: var(--green); margin-top: 1.7rem; }
.glossary dd { margin: .35rem 0 0; max-width: 38em; color: var(--muted); }

@media (max-width: 640px) {
  .hero, .page-hero { padding: 3.5rem 0 3rem; }
  .principles .grid { grid-template-columns: 1fr; gap: 2rem; }
  nav.top-nav a { margin-left: 1rem; }
}