:root {
  --ink: #000000;
  --ink-soft: #061018;
  --navy: #002850;
  --navy-2: #104068;
  --pulse: #A0A8B0;
  --cream: #F8F8F8;
  --line: rgba(160,168,176,.22);
  --muted: #A0A8B0;
  --ok: #6F9FBF;
  --max: 1180px;
  --content: 720px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 88px; }
body {
  margin: 0;
  font-family: Manrope, ui-sans-serif, system-ui, sans-serif;
  background: var(--ink);
  color: var(--cream);
  line-height: 1.65;
}
img { max-width: 100%; display: block; height: auto; }
.skip {
  position: absolute; left: 12px; top: -40px; z-index: 100;
  background: var(--navy); color: #fff; padding: .6rem 1rem; border-radius: 8px;
}
.skip:focus { top: 12px; }
a { color: inherit; }
.wrap { width: min(var(--max), calc(100% - 40px)); margin-inline: auto; }
.eyebrow {
  letter-spacing: .16em;
  text-transform: uppercase;
  font-size: .72rem;
  font-weight: 700;
  color: var(--pulse);
}
h1, h2, h3, .serif { font-family: Fraunces, Georgia, serif; }
h1 { font-size: clamp(2rem, 5vw, 3.4rem); line-height: 1.08; font-weight: 650; margin: .2em 0 .35em; }
h2 { font-size: clamp(1.5rem, 3vw, 2.2rem); line-height: 1.15; margin: 2rem 0 .5em; }
h3 { font-size: 1.2rem; margin: 1.4rem 0 .35em; }
p.lead { font-size: 1.12rem; color: var(--muted); max-width: 42rem; }
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: .55rem;
  border-radius: 999px; padding: .85rem 1.25rem; font-weight: 700; text-decoration: none;
  border: 1px solid transparent; transition: .2s ease; font-size: .95rem;
}
.btn-primary { background: linear-gradient(180deg, var(--navy-2), var(--navy)); color: #fff; box-shadow: 0 10px 30px rgba(0,40,80,.45); }
.btn-primary:hover { transform: translateY(-1px); }
.btn-ghost { border-color: rgba(160,168,176,.35); color: var(--cream); background: rgba(248,248,248,.04); }
.btn-ghost:hover { background: rgba(248,248,248,.1); }
.row { display: flex; flex-wrap: wrap; gap: .75rem; }
nav.top {
  position: sticky; top: 0; z-index: 40;
  backdrop-filter: blur(16px);
  background: rgba(0,0,0,.78);
  border-bottom: 1px solid var(--line);
}
nav.top .wrap { display: flex; align-items: center; justify-content: space-between; min-height: 72px; gap: 1rem; }
.brand { display: flex; align-items: center; text-decoration: none; }
.brand img { height: 56px; width: auto; display: block; }
.nav-links { display: flex; gap: 1rem; align-items: center; font-size: .9rem; color: var(--muted); }
.nav-links a { text-decoration: none; }
.nav-links a:hover, .nav-links a[aria-current="page"] { color: var(--cream); }
section { padding: 4rem 0; }
.muted { color: var(--muted); }
.card {
  background: var(--ink-soft);
  border: 1px solid var(--line);
  border-radius: 20px;
  padding: 1.25rem;
  box-shadow: inset 0 1px 0 rgba(16,64,104,.35);
}
.grid-2, .grid-3 { display: grid; gap: 1.1rem; }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.frame { border-radius: 22px; overflow: hidden; border: 1px solid var(--line); box-shadow: 0 20px 60px rgba(0,0,0,.35); }
.frame img { width: 100%; aspect-ratio: 4/3; object-fit: cover; }
.cta-band {
  background: linear-gradient(180deg, rgba(0,40,80,.62), rgba(0,0,0,.86)), url("/img/plat-signature.webp") center/cover;
  border-radius: 28px; padding: 3rem 2rem; text-align: center;
}
footer { border-top: 1px solid var(--line); padding: 2.4rem 0 3rem; color: var(--muted); font-size: .9rem; }
footer .wrap { display: flex; justify-content: space-between; gap: 1.5rem; flex-wrap: wrap; align-items: flex-start; }
footer a { color: var(--cream); text-decoration: none; }
footer .foot-brand img { height: 48px; width: auto; }
.footer-cols { display: grid; grid-template-columns: repeat(3, 1fr); gap: 2rem; flex: 1; }
.footer-cols h3 { font-size: .75rem; letter-spacing: .12em; text-transform: uppercase; color: var(--pulse); margin: 0 0 .75rem; font-family: Manrope, sans-serif; font-weight: 700; }
.footer-cols ul { list-style: none; padding: 0; margin: 0; }
.footer-cols li { margin-bottom: .45rem; }
.footer-cols a { color: var(--muted); font-size: .88rem; }
.footer-cols a:hover { color: var(--cream); }

/* Content pages */
.page-hero { padding: 3.5rem 0 2rem; border-bottom: 1px solid var(--line); }
.breadcrumb { font-size: .85rem; color: var(--muted); margin-bottom: 1rem; }
.breadcrumb a { color: var(--ok); text-decoration: none; }
.breadcrumb a:hover { text-decoration: underline; }
.content-prose { max-width: var(--content); }
.content-prose p { margin: 0 0 1rem; }
.content-prose ul, .content-prose ol { margin: 0 0 1rem; padding-left: 1.25rem; color: var(--muted); }
.content-prose li { margin-bottom: .35rem; }
.content-prose a { color: var(--ok); }
.content-wide { max-width: var(--max); }
.meta-line { font-size: .88rem; color: var(--muted); margin-bottom: 1.5rem; }
.hub-card { display: block; text-decoration: none; transition: border-color .2s; }
.hub-card:hover { border-color: rgba(16,64,104,.8); }
.hub-card h3 { color: var(--cream); margin-top: 0; }
.hub-card p { color: var(--muted); margin: 0; font-size: .95rem; }
.tag { display: inline-block; font-size: .72rem; font-weight: 700; letter-spacing: .08em; text-transform: uppercase; color: var(--ok); margin-bottom: .5rem; }
.faq details { border-bottom: 1px solid var(--line); padding: .85rem 0; }
.faq summary { cursor: pointer; font-weight: 700; list-style: none; }
.faq summary::-webkit-details-marker { display: none; }
.related { margin-top: 3rem; padding-top: 2rem; border-top: 1px solid var(--line); }
.related h2 { margin-top: 0; font-size: 1.4rem; }
.split { display: grid; grid-template-columns: 1fr 1fr; gap: 2.5rem; align-items: center; }
.check-list { list-style: none; padding: 0; }
.check-list li { padding-left: 1.5rem; position: relative; margin-bottom: .5rem; color: var(--muted); }
.check-list li::before { content: "✓"; position: absolute; left: 0; color: var(--ok); font-weight: 700; }

@media (max-width: 900px) {
  .grid-2, .grid-3, .split, .footer-cols { grid-template-columns: 1fr; }
  .nav-links .hide-sm { display: none; }
}