:root {
  --bg: #ffffff;
  --text: #0f172a;
  --muted: #475569;
  --border: #e2e8f0;
  --accent: #2563eb;
}

* {
  box-sizing: border-box;
}

html {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI",
               Inter, Roboto, Helvetica, Arial, sans-serif;
  line-height: 1.65;
  color: var(--text);
  background: var(--bg);
}

body {
  max-width: 820px;
  margin: 0 auto;
  padding: 48px 24px 96px;
}

h1 {
  font-size: 2.1rem;
  margin-bottom: 0.5em;
  letter-spacing: -0.02em;
}

h2 {
  font-size: 1.35rem;
  margin-top: 2.5em;
  margin-bottom: 0.6em;
  padding-top: 0.75em;
  border-top: 1px solid var(--border);
}

h3 {
  font-size: 1.1rem;
  margin-top: 1.6em;
  margin-bottom: 0.4em;
}

p {
  margin: 0.6em 0 0.9em;
  color: var(--text);
}

em {
  color: var(--muted);
  font-style: normal;
  font-weight: 500;
}

strong {
  font-weight: 600;
}

ul {
  margin: 0.5em 0 1em 1.25em;
  padding: 0;
}

li {
  margin: 0.35em 0;
}

a {
  color: var(--accent);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

hr {
  border: none;
  border-top: 1px solid var(--border);
  margin: 2.5em 0;
}

/* Highlight "In short" blocks visually */
p em:first-child {
  display: inline-block;
  margin-right: 4px;
}

/* Optional subtle callout style */
.callout {
  background: #f8fafc;
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 16px 18px;
  margin: 1.5em 0;
}

/* Trust page emphasis */
body.trust {
  max-width: 600px;
}
.trust h3 {
  font-size: 1.05rem;
  margin-top: 1.8em;
}

.trust p {
  color: var(--muted);
}

.trust p {
  display: flex;
  gap: 10px;
  align-items: flex-start;
  color: var(--text);
}

.trust i.fa-check,
.trust i.fa-check-circle {
  margin-top: 4px;
  font-size: 1rem;
  color: #16a34a; /* muted green, not salesy */
  flex-shrink: 0;
}

/* Footer spacing */
footer {
  margin-top: 4em;
  font-size: 0.9rem;
  color: var(--muted);
}

/* Mobile polish */
@media (max-width: 640px) {
  body {
    padding: 32px 18px 72px;
  }

  h1 {
    font-size: 1.8rem;
  }

  h2 {
    font-size: 1.25rem;
  }
}