:root {
  --blue: #1B568C;
  --blue-dark: #134069;
  --red: #CC2128;
  --red-dark: #A81B21;
  --ink: #111111;
  --paper: #FFFFFF;
  --band: #F4F7FA;
  --rule: #D5DEE8;
  --measure: 40rem;
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  font-size: 19px;
  line-height: 1.6;
}
a { color: var(--blue); text-underline-offset: 3px; }
a:hover { color: var(--blue-dark); }
img { max-width: 100%; height: auto; }
h1, h2, h3 { line-height: 1.2; color: var(--ink); letter-spacing: -0.01em; }
h1 { font-size: clamp(2rem, 6vw, 3.1rem); margin: 0 0 1rem; }
h2 { font-size: clamp(1.55rem, 4.2vw, 2.1rem); margin: 0 0 1rem; }
h3 { font-size: 1.25rem; margin: 0 0 .4rem; }
p { margin: 0 0 1.1rem; }
.wrap { max-width: 68rem; margin: 0 auto; padding: 0 16px; }
.narrow { max-width: var(--measure); }
section { padding: 3.5rem 0; }
section.band { background: var(--band); }
section.blue { background: var(--blue); color: #fff; }
section.blue h2, section.blue p { color: #fff; }
.skip { position: absolute; left: -999px; }
.skip:focus { left: 16px; top: 8px; background: #fff; padding: 8px; z-index: 10; }

/* Header */
.site-header { border-bottom: 1px solid var(--rule); background: #fff; }
.site-header .wrap { display: flex; align-items: center; justify-content: space-between; gap: 1rem; min-height: 68px; flex-wrap: wrap; }
.brand { font-weight: 700; font-size: 1.15rem; color: var(--ink); text-decoration: none; }
.nav { display: flex; align-items: center; gap: 1.25rem; flex-wrap: wrap; }
.nav a { color: var(--ink); text-decoration: none; font-weight: 600; font-size: 1rem; }
.nav a:hover, .nav a[aria-current="page"] { color: var(--blue); text-decoration: underline; }
.menu-btn { display: none; }
@media (max-width: 760px) {
  .menu-btn { display: inline-block; background: none; border: 2px solid var(--ink); border-radius: 8px; font: inherit; font-weight: 700; font-size: 1rem; padding: 6px 14px; color: var(--ink); cursor: pointer; }
  .nav { display: none; width: 100%; flex-direction: column; align-items: flex-start; gap: .9rem; padding: .5rem 0 1.2rem; }
  .nav.open { display: flex; }
  .nav a { font-size: 1.1rem; }
}

/* Buttons */
.btn { display: inline-block; background: var(--red); color: #fff !important; font-weight: 700; text-decoration: none; padding: 15px 26px; border-radius: 10px; font-size: 1.05rem; line-height: 1.2; text-align: center; }
.btn:hover { background: var(--red-dark); }
.btn.secondary { background: #fff; color: var(--blue) !important; border: 2px solid var(--blue); }
.btn.secondary:hover { background: var(--band); }
.btn.small { padding: 10px 18px; font-size: 1rem; }
.btn-row { display: flex; flex-wrap: wrap; gap: .8rem; margin: 1.4rem 0; }
@media (max-width: 520px) { .btn-row .btn { width: 100%; } }

/* Hero */
.hero { padding: 3.5rem 0 3rem; }
.eyebrow { font-weight: 700; color: var(--blue); font-size: 1rem; margin-bottom: .8rem; }
.lede { font-size: 1.2rem; }
.trust { border-top: 1px solid var(--rule); margin-top: 2rem; padding-top: 1.2rem; font-size: 1rem; }
.trust p { margin: 0 0 .5rem; }

/* Promise */
.promise { text-align: center; }
.promise h2 { font-size: clamp(1.7rem, 5vw, 2.4rem); }

/* Cards */
.grid { display: grid; gap: 1.2rem; grid-template-columns: repeat(auto-fit, minmax(16rem, 1fr)); }
.card { border: 1px solid var(--rule); border-radius: 12px; padding: 1.4rem; background: #fff; }
.card .tag { font-weight: 700; color: var(--blue); margin-bottom: .3rem; }
.card p:last-child { margin-bottom: 0; }

blockquote { margin: 1.6rem 0; padding: 0 0 0 1.1rem; border-left: 4px solid var(--blue); }
blockquote p { margin-bottom: .4rem; font-size: 1.1rem; }
blockquote cite { font-style: normal; font-weight: 600; font-size: 1rem; }

ul.clean { padding-left: 1.2rem; }
ul.clean li { margin-bottom: .6rem; }
ol.steps { padding-left: 1.4rem; }
ol.steps li { margin-bottom: .6rem; }

/* Lineage */
.lineage .card h3 { margin-bottom: .1rem; }
.lineage .role { font-size: 1rem; font-weight: 600; color: var(--blue); margin-bottom: .6rem; }

/* Book */
.book-title { font-style: italic; }

/* Quick answers */
details { border-bottom: 1px solid var(--rule); padding: 1rem 0; }
details summary { font-weight: 700; cursor: pointer; font-size: 1.1rem; }
details p { margin: .8rem 0 0; }

/* Footer */
.site-footer { background: var(--ink); color: #fff; padding: 3rem 0 2rem; font-size: 1rem; }
.site-footer a { color: #fff; }
.site-footer .links { display: flex; flex-wrap: wrap; gap: .5rem 1.2rem; margin-bottom: 1.4rem; }
.site-footer .scope { border-top: 1px solid #444; padding-top: 1.2rem; margin-top: 1.2rem; }
.site-footer p { margin-bottom: .8rem; }

/* Images */
.hero-grid { display: grid; gap: 2rem; align-items: center; grid-template-columns: 1fr; }
.hero-photo { width: 100%; max-width: 360px; border-radius: 14px; justify-self: center; }
@media (min-width: 900px) { .hero-grid { grid-template-columns: 1.5fr 1fr; } .hero-photo { max-width: 400px; } }
.book-cover { display: block; width: 220px; max-width: 60%; margin: 0 0 1.4rem; border-radius: 4px; box-shadow: 0 8px 24px rgba(0,0,0,.18); }
.about-photo { display: block; width: 200px; border-radius: 14px; margin-bottom: 1.4rem; }