/* ===== Design tokens ===== */
:root {
  --ink: #1B2A41;
  --ink-light: #2C4160;
  --paper: #FAF7F2;
  --paper-warm: #F2ECE1;
  --text: #22201C;
  --text-muted: #5B564C;
  --verified: #2F6E5B;
  --verified-bg: #E6EFEB;
  --caution: #C98A2C;
  --caution-bg: #F7EDDB;
  --border: #DCD5C6;
  --serif: Georgia, "Iowan Old Style", "Palatino Linotype", "Book Antiqua", serif;
  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", system-ui, Roboto, Helvetica, Arial, sans-serif;
  --max-width: 780px;
  --radius: 4px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--sans);
  background: var(--paper);
  color: var(--text);
  line-height: 1.6;
  font-size: 17px;
}

h1, h2, h3, h4 {
  font-family: var(--serif);
  color: var(--ink);
  line-height: 1.25;
  margin-top: 2em;
  margin-bottom: 0.5em;
}

h1 { font-size: 2.1rem; margin-top: 0; }
h2 { font-size: 1.5rem; border-bottom: 1px solid var(--border); padding-bottom: 0.3em; }
h3 { font-size: 1.15rem; color: var(--ink-light); }

p, li { max-width: 68ch; }

a { color: var(--ink-light); text-decoration-color: var(--border); text-underline-offset: 3px; }
a:hover { color: var(--verified); }
a:focus-visible, button:focus-visible, input:focus-visible {
  outline: 2px solid var(--verified);
  outline-offset: 2px;
}

/* ===== Skip link ===== */
.skip-link {
  position: absolute;
  left: -999px;
  top: 0;
  background: var(--ink);
  color: white;
  padding: 0.6em 1em;
  z-index: 100;
}
.skip-link:focus { left: 0; }

/* ===== Header / nav ===== */
header.site-header {
  background: var(--ink);
  color: var(--paper);
  padding: 0.9em 1.2em;
}
.header-inner {
  max-width: 1000px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1em;
  flex-wrap: wrap;
}
.site-title {
  font-family: var(--serif);
  font-size: 1.15rem;
  color: white;
  text-decoration: none;
  font-weight: bold;
  white-space: nowrap;
}
.site-title:hover { color: var(--paper-warm); }

nav.main-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.2em 1em;
  font-size: 0.92rem;
}
nav.main-nav a {
  color: var(--paper-warm);
  text-decoration: none;
  padding: 0.3em 0;
  border-bottom: 2px solid transparent;
}
nav.main-nav a:hover, nav.main-nav a[aria-current="page"] {
  color: white;
  border-bottom-color: var(--verified);
}

/* ===== Search ===== */
.site-search {
  max-width: 1000px;
  margin: 0 auto;
  padding: 0.8em 1.2em;
}
.site-search input {
  width: 100%;
  padding: 0.7em 1em;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  font-size: 1rem;
  font-family: var(--sans);
  background: white;
}
#search-results {
  max-width: 1000px;
  margin: 0.4em auto 0;
  padding: 0 1.2em;
  font-size: 0.92rem;
}
#search-results ul { list-style: none; padding: 0; margin: 0.3em 0; }
#search-results li { padding: 0.35em 0; border-bottom: 1px solid var(--border); }
#search-results a { font-weight: 600; }
#search-results .snippet { color: var(--text-muted); display: block; font-size: 0.9em; }

/* ===== Main content ===== */
main {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 2.5em 1.4em 5em;
}
main.wide { max-width: 900px; }

/* ===== Hero (homepage) ===== */
.hero {
  background: var(--paper-warm);
  border-bottom: 1px solid var(--border);
  padding: 3.5em 1.4em;
  text-align: left;
}
.hero-inner { max-width: 700px; margin: 0 auto; }
.hero h1 {
  font-size: 2.3rem;
  margin-bottom: 0.4em;
}
.hero .lede {
  font-size: 1.2rem;
  color: var(--text);
  margin-bottom: 0;
}
.hero .signoff {
  font-family: var(--serif);
  font-style: italic;
  color: var(--ink-light);
  margin-top: 0.6em;
}

/* ===== Disclaimer box ===== */
.disclaimer {
  background: var(--caution-bg);
  border: 1px solid var(--caution);
  border-radius: var(--radius);
  padding: 1.1em 1.3em;
  margin: 1.6em 0;
  font-size: 0.94rem;
}
.disclaimer strong { color: #8A5D1A; }

/* ===== Citation block ===== */
.citation {
  border-left: 3px solid var(--verified);
  background: white;
  padding: 0.9em 1.1em;
  margin: 1.2em 0;
  border-radius: 0 var(--radius) var(--radius) 0;
}
.citation .cite-label {
  font-family: var(--serif);
  font-weight: bold;
  color: var(--ink);
  display: block;
  margin-bottom: 0.3em;
}
.citation p { margin: 0.4em 0; }
.citation .cite-link { font-size: 0.9rem; }

/* ===== Cards / grid ===== */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1em;
  margin: 1.5em 0;
}
.card {
  background: white;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.2em;
  text-decoration: none;
  color: var(--text);
  display: block;
}
.card:hover { border-color: var(--verified); }
.card h3 { margin-top: 0; color: var(--ink); }
.card p { font-size: 0.92rem; color: var(--text-muted); margin-bottom: 0; }

/* ===== Tactic pattern block ===== */
.tactic {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.3em 1.4em;
  margin: 1.4em 0;
  background: white;
}
.tactic h3 { margin-top: 0; }
.tactic .looks-like { color: var(--text-muted); font-style: italic; }

/* ===== Steps ===== */
ol.steps { padding-left: 1.4em; }
ol.steps li { margin-bottom: 0.6em; }

/* ===== Letter template ===== */
.letter-template {
  background: white;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5em;
  font-family: var(--serif);
  white-space: pre-wrap;
  margin: 1em 0;
  line-height: 1.7;
}
.letter-note {
  background: var(--caution-bg);
  border-left: 3px solid var(--caution);
  padding: 0.7em 1em;
  font-size: 0.9rem;
  margin-bottom: 1em;
}

/* ===== Table ===== */
table.data {
  width: 100%;
  border-collapse: collapse;
  margin: 1.4em 0;
  font-size: 0.94rem;
}
table.data th, table.data td {
  text-align: left;
  padding: 0.6em 0.7em;
  border-bottom: 1px solid var(--border);
}
table.data th {
  font-family: var(--serif);
  color: var(--ink);
  border-bottom: 2px solid var(--ink);
}

/* ===== Footer ===== */
footer.site-footer {
  background: var(--paper-warm);
  border-top: 1px solid var(--border);
  padding: 2em 1.4em;
  margin-top: 3em;
}
.footer-inner {
  max-width: 900px;
  margin: 0 auto;
  font-size: 0.85rem;
  color: var(--text-muted);
}
.footer-inner p { max-width: none; }
.footer-inner a { color: var(--ink-light); }
.last-reviewed {
  display: inline-block;
  margin-top: 0.6em;
  font-size: 0.8rem;
  color: var(--text-muted);
}

/* ===== Back to top / breadcrumb ===== */
.eyebrow {
  font-size: 0.82rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--verified);
  font-weight: 700;
  margin-bottom: 0.4em;
}

/* ===== Reduced motion ===== */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
}

/* ===== Mobile ===== */
@media (max-width: 640px) {
  .hero { padding: 2.2em 1em; }
  .hero h1 { font-size: 1.7rem; }
  main { padding: 1.8em 1em 4em; }
  nav.main-nav { gap: 0.1em 0.7em; }
}