:root {
  --ink: #1c1c1c;
  --ink-2: #3d3d3d;
  --muted: #5c5c5c;
  --rule: #d9d9d9;
  --rule-soft: #e6e6e6;
  --paper: #ffffff;
  --paper-2: #f3f3f1;
  --accent: #1f3a5f;
  --accent-ink: #142740;
  --serif: "Source Serif 4", Georgia, serif;
  --sans: "Public Sans", system-ui, sans-serif;
  --wrap: 1240px;
}

*, *::before, *::after { box-sizing: border-box; }

html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

body {
  margin: 0;
  font-family: var(--sans);
  color: var(--ink);
  background: var(--paper);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }
a { color: var(--accent); }
a:hover { color: var(--accent-ink); }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }
code { font-size: 0.92em; }

.skip {
  position: absolute; left: -9999px; top: 0;
  background: var(--ink); color: var(--paper); padding: 12px 16px; z-index: 10;
}
.skip:focus { left: 16px; top: 16px; }

.wrap { max-width: var(--wrap); margin: 0 auto; padding: 0 24px; }

/* Header */
.site-header { border-bottom: 1px solid var(--rule); }
.site-header .wrap {
  display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between;
  gap: 12px; padding-top: 16px; padding-bottom: 16px;
}
.brand { display: flex; align-items: center; gap: 12px; text-decoration: none; color: var(--ink); }
.brand img { width: 40px; height: 32px; object-fit: contain; }
.brand span { font-family: var(--serif); font-size: 20px; font-weight: 600; }
.brand:hover { color: var(--ink); }

/* Buttons */
.btn {
  display: inline-block; padding: 14px 22px; font-weight: 500; text-decoration: none;
  border: 1px solid var(--accent); background: var(--accent); color: #fff;
}
.btn:hover { background: var(--accent-ink); border-color: var(--accent-ink); color: #fff; }
.btn--ghost { background: transparent; color: var(--ink); border-color: var(--ink); }
.btn--ghost:hover { background: var(--ink); color: var(--paper); border-color: var(--ink); }
.btn--sm { padding: 12px 20px; font-size: 15px; }

/* Layout: index + content */
.layout { display: flex; flex-wrap: wrap; gap: 48px; }
.index { flex: 1 1 200px; max-width: 240px; padding-top: 72px; }
.index ol { list-style: none; margin: 0; padding: 0; border-top: 1px solid var(--rule); }
.index li { border-bottom: 1px solid var(--rule); }
.index a {
  display: flex; gap: 12px; padding: 12px 0; text-decoration: none; color: var(--ink); font-size: 15px;
}
.index a:hover { color: var(--accent); }
.index a span { color: var(--muted); width: 24px; flex: none; }
.index .index-title { margin-bottom: 16px; }
.index .entity { margin-top: 32px; font-size: 13px; line-height: 1.6; color: var(--muted); }
.content { flex: 999 1 560px; min-width: 0; padding-bottom: 96px; }

@media (min-width: 900px) {
  .index nav { position: sticky; top: 24px; }
}
@media (max-width: 860px) {
  .index { display: none; }
}

.kicker {
  font-size: 12px; font-weight: 600; letter-spacing: 0.1em; text-transform: uppercase; color: var(--muted);
}

/* Sections */
section { border-bottom: 1px solid var(--rule); padding: 64px 0; scroll-margin-top: 16px; }
section:last-child { border-bottom: 0; padding-bottom: 0; }
h1, h2, h3 { margin: 0; }
h2 { font-family: var(--serif); font-size: 34px; font-weight: 600; line-height: 1.15; }
h2.spaced { margin-bottom: 32px; }
.section-head { display: flex; flex-wrap: wrap; justify-content: space-between; align-items: baseline; gap: 12px; }
.lede { margin: 12px 0 32px; font-size: 17px; line-height: 1.6; color: var(--ink-2); max-width: 640px; }

/* Hero */
.hero { padding: 72px 0 64px; }
.hero .eyebrow {
  margin: 0 0 20px; font-size: 13px; font-weight: 600; letter-spacing: 0.1em;
  text-transform: uppercase; color: var(--accent);
}
.hero h1 {
  font-family: var(--serif); font-size: clamp(38px, 5vw, 64px); line-height: 1.08;
  font-weight: 600; max-width: 820px;
}
.hero p.intro { margin: 28px 0 0; font-size: 19px; line-height: 1.6; color: var(--ink-2); max-width: 660px; }
.actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 36px; }

/* Register table */
.table-box { overflow-x: auto; border: 1px solid var(--rule); }
table { width: 100%; min-width: 640px; border-collapse: collapse; font-size: 15px; }
th {
  background: var(--paper-2); text-align: left; font-weight: 600;
  padding: 14px 16px; border-bottom: 1px solid var(--rule);
}
td { padding: 18px 16px; border-bottom: 1px solid var(--rule-soft); vertical-align: top; color: var(--ink-2); }
tr:last-child td { border-bottom: 0; }
td.product a { font-weight: 600; }
td.product small { display: block; font-size: 13px; color: var(--muted); margin-top: 4px; }

.tag {
  display: inline-block; padding: 4px 10px; font-size: 13px; font-weight: 500;
  white-space: nowrap; border: 1px solid var(--muted); color: var(--ink-2);
}
.tag--live { border-color: var(--accent); color: var(--accent); }
.tag--soon { border-style: dashed; }

/* Coming next */
.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 340px), 1fr)); gap: 24px; }
.card { border: 1px solid var(--rule); display: flex; flex-direction: column; margin: 0; }
.card img {
  width: 100%; height: auto; aspect-ratio: 16 / 10; object-fit: cover; object-position: top left;
  border-bottom: 1px solid var(--rule); background: var(--paper-2);
}
.card .body { padding: 24px; display: flex; flex-direction: column; gap: 10px; }
.card h3 { font-family: var(--serif); font-size: 24px; font-weight: 600; }
.card .row { display: flex; flex-wrap: wrap; justify-content: space-between; align-items: baseline; gap: 8px; }
.card p { margin: 0; font-size: 16px; line-height: 1.6; color: var(--ink-2); }

/* Stack diagram */
.stack {
  margin: 0 0 40px; border: 1px solid var(--rule); background: var(--paper-2);
  padding: 24px; display: flex; flex-direction: column; gap: 12px;
}
.layer { display: flex; flex-wrap: wrap; align-items: center; gap: 12px; }
.layer .kicker { flex: 0 0 120px; }
.block {
  flex: 1 1 140px; text-align: center; padding: 14px 16px; background: var(--paper);
  border: 1px solid var(--ink); font-size: 15px; font-weight: 500;
}
.block--app { font-weight: 600; }
.block--dashed { border-style: dashed; }
.block--accent { background: var(--accent); border-color: var(--accent); color: #fff; font-weight: 600; }
.stack figcaption { font-size: 13px; color: var(--muted); margin-top: 4px; }
@media (max-width: 520px) {
  .layer .kicker { flex-basis: 100%; }
}

.principles { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 190px), 1fr)); gap: 28px; }
.principles h3 { font-size: 19px; font-weight: 600; margin-bottom: 10px; }
.principles p { margin: 0; font-size: 16px; line-height: 1.6; color: var(--ink-2); }

/* People */
.person { margin: 0; display: flex; flex-wrap: wrap; gap: 32px; align-items: flex-start; }
.person img { width: 160px; height: 160px; object-fit: cover; }
.person figcaption { flex: 1 1 300px; display: flex; flex-direction: column; gap: 10px; }
.person .name { font-size: 22px; font-weight: 600; }
.person .role { font-size: 15px; color: var(--muted); }
.person p { margin: 6px 0 0; font-size: 17px; line-height: 1.65; color: var(--ink-2); max-width: 600px; }

/* Contact */
.contact-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 300px), 1fr)); gap: 40px; }
.contact-cta p { margin: 0 0 24px; font-size: 18px; line-height: 1.6; color: var(--ink-2); max-width: 460px; }
.contact-cta .email { display: inline-block; margin-top: 16px; font-size: 18px; font-weight: 500; }
.details { display: flex; flex-direction: column; gap: 28px; font-size: 16px; line-height: 1.65; }
.details .kicker { margin-bottom: 6px; }
address { font-style: normal; }

/* Footer */
.site-footer { border-top: 1px solid var(--rule); background: var(--paper-2); }
.site-footer .wrap {
  display: flex; flex-wrap: wrap; justify-content: space-between; gap: 12px;
  padding-top: 24px; padding-bottom: 24px; font-size: 14px; color: var(--ink-2);
}