/* AASI steward site — professional/institutional register. Self-contained: no external fonts, no trackers.
   S325 typography pass (LIGHT): well-set austerity only — type scale, ~68ch measure, spacing rhythm,
   heading hierarchy, table setting. No branding, no imagery, neutral ink; palette unchanged. */
:root {
  --ink: #1c2733;
  --navy: #1a2c4e;
  --slate: #46586b;
  --rule: #d8dee6;
  --wash: #f6f8fa;
  --accent: #2c4a7c;
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font-family: "Iowan Old Style", "Palatino Linotype", Palatino, Georgia, "Times New Roman", serif;
  color: var(--ink);
  background: #ffffff;
  line-height: 1.62;
  font-size: 1.0625rem; /* 17px */
  font-kerning: normal;
  font-variant-numeric: oldstyle-nums;
  text-rendering: optimizeLegibility;
}
header.site {
  border-bottom: 3px solid var(--navy);
  background: var(--wash);
  font-family: -apple-system, "Segoe UI", system-ui, Helvetica, Arial, sans-serif;
}
header.site .inner {
  max-width: 68ch;
  margin: 0 auto;
  padding: 1.1rem 1.25rem 0.9rem;
}
header.site .mark {
  font-size: 1.1rem;
  color: var(--navy);
  letter-spacing: 0.01em;
  text-decoration: none;
  font-weight: 700;
}
nav.site {
  max-width: 68ch;
  margin: 0.6rem auto 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.25rem 1.35rem;
  font-size: 0.86rem;
  letter-spacing: 0.015em;
}
nav.site a {
  color: var(--slate);
  text-decoration: none;
  border-bottom: 2px solid transparent;
  padding-bottom: 2px;
}
nav.site a:hover { color: var(--navy); }
nav.site a.here { color: var(--navy); border-bottom-color: var(--navy); font-weight: 600; }
main {
  max-width: 68ch;
  margin: 0 auto;
  padding: 2.5rem 1.25rem 3.5rem;
}
h1 {
  color: var(--navy);
  font-size: 1.9rem;
  line-height: 1.22;
  letter-spacing: -0.008em;
  margin: 0 0 0.5rem;
  font-weight: 700;
}
h2 {
  color: var(--navy);
  font-size: 1.28rem;
  line-height: 1.3;
  margin: 2.6rem 0 0.7rem;
  padding-top: 1.3rem;
  border-top: 1px solid var(--rule);
  font-weight: 700;
}
h1 + h2, h1 + p + h2 { border-top: none; }
p { margin: 0 0 1rem; }
p.lede {
  font-size: 1.2rem;
  line-height: 1.5;
  color: var(--slate);
  font-style: italic;
  margin: 0 0 1.4rem;
}
blockquote {
  margin: 1.5rem 0;
  padding: 0.95rem 1.25rem;
  background: var(--wash);
  border-left: 3px solid var(--accent);
  color: var(--ink);
}
blockquote p { margin: 0.4rem 0; }
table {
  border-collapse: collapse;
  width: 100%;
  margin: 1.4rem 0;
  font-size: 0.88rem;
  line-height: 1.5;
  font-family: -apple-system, "Segoe UI", system-ui, Helvetica, Arial, sans-serif;
  font-variant-numeric: normal;
}
th, td {
  border: 1px solid var(--rule);
  padding: 0.55rem 0.8rem;
  text-align: left;
  vertical-align: top;
}
th {
  background: var(--wash);
  color: var(--navy);
  font-weight: 600;
  letter-spacing: 0.02em;
}
ul, ol { padding-left: 1.5rem; margin: 0 0 1.1rem; }
li { margin: 0.5rem 0; }
li::marker { color: var(--slate); }
a { color: var(--accent); text-decoration-thickness: 1px; text-underline-offset: 2px; }
.cta {
  display: inline-block;
  margin: 0.5rem 1.25rem 0.5rem 0;
  padding: 0.55rem 1.05rem;
  border: 1.5px solid var(--navy);
  color: var(--navy);
  text-decoration: none;
  font-weight: 600;
  font-size: 0.9rem;
  background: #fff;
  font-family: -apple-system, "Segoe UI", system-ui, Helvetica, Arial, sans-serif;
}
.cta:hover { background: var(--navy); color: #fff; }
code {
  background: var(--wash);
  border: 1px solid var(--rule);
  padding: 0.1rem 0.35rem;
  font-size: 0.85em;
  font-family: ui-monospace, "Cascadia Mono", Consolas, Menlo, monospace;
}
footer.site {
  border-top: 3px solid var(--navy);
  background: var(--wash);
  margin-top: 2.5rem;
  font-family: -apple-system, "Segoe UI", system-ui, Helvetica, Arial, sans-serif;
}
footer.site .inner {
  max-width: 68ch;
  margin: 0 auto;
  padding: 1.5rem 1.25rem 2rem;
  font-size: 0.84rem;
  line-height: 1.6;
  color: var(--slate);
}
footer.site p { margin: 0.6rem 0; }
footer.site .founding {
  font-weight: 700;
  color: var(--navy);
}
footer.site .prepub { font-style: italic; }

/* S331 ecosystem-face v2 additions. Deliberately static: no animation, no transition —
   prefers-reduced-motion is honored by construction (nothing moves). */

/* Long identifiers (chain ids, sha-256 pins) must wrap inside table cells and
   narrow viewports rather than force horizontal scroll. */
td code, .rev-banner code, code.pin { overflow-wrap: anywhere; word-break: break-all; }

/* The keyless verify chip: a chain id that is also a button. */
code.chain-chip.verifiable {
  cursor: pointer;
  border-color: var(--accent);
  text-decoration: underline;
  text-decoration-style: dotted;
  text-underline-offset: 3px;
}
code.chain-chip.verifiable:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
code.chain-chip.busy { opacity: 0.55; cursor: wait; }
.verify-result {
  font-family: -apple-system, "Segoe UI", system-ui, Helvetica, Arial, sans-serif;
  font-size: 0.85rem;
  line-height: 1.5;
  margin: 0.55rem 0;
  padding: 0.55rem 0.85rem;
  border: 1px solid var(--rule);
  background: var(--wash);
}
.verify-result.ok { border-left: 3px solid #2e6b46; }
.verify-result.broken { border-left: 3px solid #8c2f2f; }
.verify-result.unknown { border-left: 3px solid var(--slate); }

/* Frozen-revision status banner (injected at serve time; never part of the frozen bytes). */
.rev-banner {
  font-family: -apple-system, "Segoe UI", system-ui, Helvetica, Arial, sans-serif;
  font-size: 0.88rem;
  line-height: 1.55;
  margin: 0 0 1.6rem;
  padding: 0.8rem 1.05rem;
  border: 1px solid var(--rule);
  background: var(--wash);
}
.rev-banner p { margin: 0; }
.rev-banner.rev-current { border-left: 4px solid var(--navy); }
.rev-banner.rev-superseded { border-left: 4px solid #8c2f2f; }

/* Proposal (GAP) status labels — plain text, set off typographically only. */
.gap-status {
  font-family: -apple-system, "Segoe UI", system-ui, Helvetica, Arial, sans-serif;
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--slate);
  border: 1px solid var(--rule);
  padding: 0.1rem 0.45rem;
  white-space: nowrap;
}
.gap-status.accepted { color: #2e6b46; border-color: #2e6b46; }

/* Wide tables scroll inside their own box; the page never scrolls horizontally. */
.tablewrap { overflow-x: auto; margin: 1.4rem 0; }
.tablewrap table { margin: 0; }

/* Docs track register: a plain list of the three audiences. */
.track { margin: 1.4rem 0; padding: 0.95rem 1.15rem; border: 1px solid var(--rule); }
.track h3 { margin: 0 0 0.4rem; color: var(--navy); font-size: 1.05rem; }
.track p { margin: 0.3rem 0; }

/* ================= S332 aasi-face-frame — the three-zone docs shell =================
   Serve-time chrome (frame.js): header band · left nav · center (the page's own <main>,
   68ch measure KEPT) · right "on this page" TOC · footer band. Plain CSS grid; no
   framework; no third-party anything. Mobile: checkbox hamburger, zero JS. */
.frame-head {
  position: sticky; top: 0; z-index: 40; background: var(--navy, #16324f);
  color: #fff; display: flex; align-items: center; gap: 0.9rem;
  padding: 0.7rem 1rem; flex-wrap: wrap;
}
.frame-mark { color: #fff; text-decoration: none; font-weight: 700; letter-spacing: 0.01em; }
.frame-tag { font-size: 0.72rem; opacity: 0.75; }
.frame-grid { display: grid; grid-template-columns: 1fr; max-width: 96rem; margin: 0 auto; }
.frame-left, .frame-right { padding: 1.2rem 1rem; }
.frame-center { min-width: 0; padding: 0 1rem; }
.frame-center main { margin-left: auto; margin-right: auto; }  /* the 68ch measure, centered */
.frame-nav .nav-sec, .frame-foot .nav-sec {
  font-size: 0.68rem; letter-spacing: 0.12em; text-transform: uppercase;
  opacity: 0.65; margin: 1.1rem 0 0.3rem; font-weight: 700;
}
.frame-nav ul { list-style: none; margin: 0; padding: 0; }
.frame-nav li { margin: 0.15rem 0; }
.frame-nav a { text-decoration: none; font-size: 0.86rem; display: block; padding: 0.22rem 0.5rem; border-radius: 4px; }
.frame-nav a:hover { background: rgba(22, 50, 79, 0.08); }
.frame-nav a.current { background: rgba(22, 50, 79, 0.12); font-weight: 700; }
.pagetoc { font-size: 0.82rem; }
.pagetoc summary { cursor: pointer; font-weight: 700; font-size: 0.72rem; letter-spacing: 0.1em; text-transform: uppercase; opacity: 0.7; }
.pagetoc ol { list-style: none; margin: 0.4rem 0 0; padding: 0 0 0 0.2rem; border-left: 2px solid rgba(22, 50, 79, 0.15); }
.pagetoc li { margin: 0.25rem 0; padding-left: 0.55rem; }
.pagetoc li.lvl3 { padding-left: 1.3rem; font-size: 0.78rem; }
.pagetoc a { text-decoration: none; }
.pagetoc a:hover { text-decoration: underline; }
.frame-foot { background: var(--navy, #16324f); color: rgba(255, 255, 255, 0.85); margin-top: 2.5rem; }
.frame-foot .foot-grid { max-width: 96rem; margin: 0 auto; padding: 1.6rem 1rem; display: grid; gap: 1.4rem; }
.frame-foot a { color: #fff; }
.frame-foot .foot-page footer, .frame-foot .foot-page .inner { all: revert; }
.frame-foot .foot-page p { font-size: 0.78rem; line-height: 1.6; opacity: 0.85; }
.nav-toggle { position: absolute; opacity: 0; pointer-events: none; }
.nav-burger { display: none; cursor: pointer; width: 1.6rem; }
.nav-burger span { display: block; height: 2px; background: #fff; margin: 4px 0; }
.draft-chip {
  font-size: 0.62rem; vertical-align: middle; letter-spacing: 0.08em; text-transform: uppercase;
  border: 1px solid currentColor; border-radius: 3px; padding: 0.15rem 0.4rem; opacity: 0.7;
}
.draft-label { font-size: 0.72rem; opacity: 0.7; letter-spacing: 0.06em; }

@media (min-width: 1100px) {   /* desktop: three zones, sticky rails */
  .frame-grid { grid-template-columns: 15rem minmax(0, 1fr) 15rem; gap: 1rem; }
  .frame-left, .frame-right { position: sticky; top: 3.2rem; align-self: start;
    max-height: calc(100vh - 3.2rem); overflow-y: auto; }
}
@media (min-width: 700px) and (max-width: 1099.9px) {   /* tablet: nav stays, TOC folds on top */
  .frame-grid { grid-template-columns: 13rem minmax(0, 1fr); gap: 0.8rem; }
  .frame-left { position: sticky; top: 3.2rem; align-self: start; max-height: calc(100vh - 3.2rem); overflow-y: auto; }
  .frame-right { grid-column: 2; grid-row: 1; padding-bottom: 0; }
  .frame-center { grid-column: 2; grid-row: 2; }
  .pagetoc { border: 1px solid rgba(22, 50, 79, 0.18); border-radius: 6px; padding: 0.6rem 0.8rem; }
}
@media (max-width: 699.9px) {   /* mobile: hamburger slide-in; single column */
  .nav-burger { display: block; }
  .frame-left {
    position: fixed; inset: 0 30% 0 0; z-index: 50; background: #fff;
    transform: translateX(-102%);
    overflow-y: auto; box-shadow: 2px 0 14px rgba(0, 0, 0, 0.25); padding-top: 0.8rem;
  }
  .nav-toggle:checked ~ .frame-grid .frame-left,
  body:has(.nav-toggle:checked) .frame-left { transform: translateX(0); }
  .frame-right { padding-top: 0.4rem; }
  .pagetoc { border: 1px solid rgba(22, 50, 79, 0.18); border-radius: 6px; padding: 0.5rem 0.7rem; }
  .frame-tag { display: none; }
}