/* Cinematic lobby, minimal decisions. Geometry below applies only to chapter I;
   later stops keep their room-first layout and all existing scene behavior. */
html.sd-v3 #overlay-0 .so-card {
  width: 920px;
  max-width: 100%;
  padding: 26px 32px 20px;
  border-radius: var(--sd-radius);
}
html.sd-v3.mode-immersive #overlay-0 .so-card {
  max-width: 920px;
  background: linear-gradient(115deg, rgba(5, 11, 20, .985), rgba(8, 17, 28, .955));
  border-color: rgba(163, 177, 193, .14);
  box-shadow: 0 18px 60px rgba(0, 0, 0, .28);
}
html.sd-v3 #overlay-0 .so-eyebrow { margin-bottom: 10px; color: var(--sd-text-2); font-size: 10px; }
.sd-v3 .hp-brand {
  font-family: var(--sd-font-brand);
  font-size: clamp(15px, 1.6vw, 21px);
  font-weight: 600;
  letter-spacing: .18em;
  color: var(--sd-gold);
}
html.sd-v3 #overlay-0 .so-title {
  font-family: var(--sd-font-display);
  font-size: clamp(32px, 3.65vw, 54px);
  line-height: 1.04;
  font-weight: 600;
  letter-spacing: -.04em;
  white-space: normal;
  max-width: none;
  margin: 12px 0 0;
  color: var(--sd-text-1);
  -webkit-text-stroke: .18px rgba(0, 0, 0, .68);
  text-shadow: 0 1px 1px rgba(0,0,0,.98), 0 0 2px rgba(0,0,0,.9);
}
html.sd-v3 #overlay-0 .so-title br { display: block; }
html.sd-v3 #overlay-0 .hp-line {
  font-family: var(--sd-font-body);
  font-size: 18px;
  line-height: 1.45;
  letter-spacing: .01em;
  color: var(--sd-text-1);
  margin: 14px 0 0;
}
.sd-v3 .hp-line span { color: var(--sd-text-2); }
.sd-v3 .hp-motto {
  font-family: var(--sd-font-body);
  font-size: 13px;
  line-height: 1.5;
  color: var(--sd-gold-muted);
  margin-top: 10px;
}
.sd-v3 .hp-motto span { color: var(--sd-text-2); }
.sd-v3 .hp-choices {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  width: 100%;
  margin-top: 22px;
}
.sd-v3 .hp-choice {
  display: grid;
  grid-template-columns: 18px 1fr 14px;
  gap: 10px;
  align-items: start;
  min-width: 0;
  min-height: 112px;
  padding: 18px 14px;
  border: 1px solid rgba(99, 230, 255, .24);
  border-radius: var(--sd-radius);
  background: rgba(14, 22, 36, .98);
  color: var(--sd-text-1);
  text-decoration: none;
  cursor: pointer;
}
.sd-v3 .hp-choice-icon { color: var(--sd-cyan); font-size: 19px; line-height: 1.2; }
.sd-v3 .hp-choice-copy { display: flex; flex-direction: column; gap: 7px; }
.sd-v3 .hp-choice strong {
  font: 500 17px/1.25 var(--sd-font-display);
  letter-spacing: -.02em;
}
.sd-v3 .hp-choice-copy > span { font: 400 13px/1.45 var(--sd-font-body); color: var(--sd-text-2); }
.sd-v3 .hp-choice-arrow { color: var(--sd-text-2); font-size: 17px; }
.sd-v3 .hp-choice:hover { border-color: var(--sd-cyan); background: var(--sd-surface-2); }
.sd-v3 .hp-choice:focus-visible,
.sd-v3 #overlay-0 summary:focus-visible { outline: 2px solid var(--sd-cyan); outline-offset: 4px; }
.sd-v3 .hp-paths { width: 100%; margin-top: 10px; scroll-margin-top: 110px; }
.sd-v3 .hp-paths > summary,
html.sd-v3 #overlay-0 .hp-about > summary {
  display: flex;
  align-items: center;
  gap: 8px;
  min-height: 44px;
  cursor: pointer;
  list-style: none;
  font: 400 12px/1.4 var(--sd-font-body);
  letter-spacing: .02em;
  text-transform: none;
  color: var(--sd-text-2);
}
.sd-v3 .hp-paths > summary::-webkit-details-marker { display: none; }
.sd-v3 .hp-paths > summary::before { content: "+"; color: var(--sd-cyan); }
.sd-v3 .hp-paths[open] > summary::before { content: "−"; }
html.sd-v3 #overlay-0 .entry-paths { max-width: none; margin-top: 4px; }
html.sd-v3 #overlay-0 .entry-paths a {
  border-color: var(--sd-border);
  background: var(--sd-surface-1);
  padding: 12px;
  font-size: 13px;
  min-height: 44px;
}
html.sd-v3 #overlay-0 .entry-paths b { color: var(--sd-text-1); font-size: 12px; letter-spacing: .03em; }
html.sd-v3 #overlay-0 .entry-paths a:hover,
html.sd-v3 #overlay-0 .entry-paths a:focus-visible { border-color: var(--sd-cyan); }
html.sd-v3 #overlay-0 .hp-foot { margin-top: 0; }
html.sd-v3 #overlay-0 .so-creds {
  border: 0;
  padding: 0;
  margin: 0;
  font-size: 10px;
  letter-spacing: .08em;
  gap: 7px;
}
html.sd-v3 #overlay-0 .hp-about { margin-top: 4px; }
@media (min-width: 900px) {
  html.sd-v3.mode-immersive #overlay-0 .hp-foot {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    width: 100%;
  }
  html.sd-v3.mode-immersive #overlay-0 .hp-about { margin-top: 0; width: auto; }
  html.sd-v3.mode-immersive #overlay-0 .hp-about[open] { width: 100%; }
  html.sd-v3.mode-immersive #overlay-0 .hp-foot:has(.hp-about[open]) { display: block; }
}
html.sd-v3 #overlay-0 .so-cred { color: var(--sd-text-2); }
html.sd-v3 #overlay-0 .so-cred:first-child { color: var(--sd-gold); }
/* Calmer instrumentation. Preserve positions, controls, route indicators and
   the Roman arch; cyan identifies interaction or the active chapter. */
html.sd-v3 .nav-rail .nav-dot {
  color: rgba(205, 247, 252, .94);
  opacity: .92;
  text-shadow: 0 1px 2px rgba(0,0,0,.98), 0 0 6px rgba(0,209,255,.22);
}
html.sd-v3 .nav-rail .nav-dot.active,
html.sd-v3 .nav-rail .nav-dot:hover,
html.sd-v3 .nav-rail .nav-dot:focus-visible { color: var(--sd-cyan-soft); text-shadow: 0 1px 3px #000; }
html.sd-v3 .nav-dot .label { font-family: var(--sd-font-display); font-weight: 500; letter-spacing: .02em; }
html.sd-v3 .nav-dot .roman { color: var(--sd-gold-muted); }
html.sd-v3 .nav-dot .desc { color: rgba(206, 226, 236, .90); opacity: .8; }
html.sd-v3 .hud-cyan { color: var(--sd-text-2); }
html.sd-v3 .so-wing .wv { font-family: var(--sd-font-body); text-shadow: 0 1px 3px #000; }
html.sd-v3 .so-wing-hd { color: var(--sd-text-2); text-shadow: none; }
html.sd-v3 .so-wing { box-shadow: none; }
html.sd-v3 #cursor-ring.hot { border-color: var(--sd-cyan); }
html.sd-v3.mode-static #cursor-ring,
html.sd-v3.mode-static #cursor-dot { display: none; }
/* Static page keeps ordinary document flow, including with JavaScript off. */
html.sd-v3.mode-static.mob #overlay-0 { min-height: 0; }
html.sd-v3.mode-static.mob #overlay-0::before {
  background: linear-gradient(105deg, rgba(5, 11, 20, .94), rgba(5, 11, 20, .64)),
    url(assets/salian-avenue-1-mobile.webp) center 38% / cover;
}
html.sd-v3.mode-static.mob #overlay-0 .so-card { padding: 34px 24px 24px !important; }
html.sd-v3.mode-static #overlay-0 .so-title {
  font-size: clamp(32px, 5vw, 52px) !important;
  line-height: 1.08 !important;
  margin: 12px 0 0 !important;
  letter-spacing: -.035em;
}
html.sd-v3.mode-static.mob #overlay-0 .so-cred {
  padding: 0;
  background: none;
  border: 0;
  backdrop-filter: none;
  font-size: 10px;
}
.sd-v3 .mc-brief .mc-chip { min-height: 44px; font-family: var(--sd-font-body); letter-spacing: .01em; }
.sd-v3 .mc-brief .mc-brief-h { color: var(--sd-text-1); }
.sd-v3 .mc-brief .mc-route .is-current .mc-chip { border-color: var(--sd-cyan); }
@media (max-width: 1199.98px) {
  html.sd-v3.mode-immersive #overlay-0 .so-inner { --so-clear-bottom: 120px; }
  html.sd-v3.mode-immersive #overlay-0 .so-card { width: 760px; }
  .sd-v3 .hp-choice { padding: 14px 10px; gap: 7px; }
}
@media (max-height: 800px) and (min-width: 900px) {
  html.sd-v3.mode-immersive #overlay-0 .so-card { padding: 18px 28px 12px; }
  html.sd-v3.mode-immersive #overlay-0 .so-title { font-size: 40px; margin-top: 8px; }
  html.sd-v3.mode-immersive #overlay-0 .so-eyebrow { margin-bottom: 6px; }
  html.sd-v3.mode-immersive #overlay-0 .hp-line { margin-top: 10px; font-size: 16px; }
  .sd-v3 .hp-choices { margin-top: 16px; }
  .sd-v3 .hp-choice { min-height: 90px; padding-block: 12px; }
  html.sd-v3.mode-immersive #overlay-0 .hp-paths { margin-top: 8px; }
  .sd-v3 .hp-motto { margin-top: 7px; }
}
@media (max-width: 760px) {
  .sd-v3 .hp-choices { grid-template-columns: 1fr; gap: 8px; margin-top: 22px; }
  .sd-v3 .hp-choice { min-height: 80px; padding: 14px 16px; gap: 12px; align-items: center; }
  .sd-v3 .hp-choice-copy { gap: 4px; }
  .sd-v3 .hp-choice-copy > span br { display: none; }
  html.sd-v3 #overlay-0 .hp-line { font-size: 17px; }
  html.sd-v3 #overlay-0 .so-title { overflow-wrap: normal; }
  .sd-v3 .hp-brand { font-size: 16px; }
  html.sd-v3 #overlay-0 .hp-about > summary { min-height: 44px; }
}
@media (prefers-reduced-motion: reduce) {
  .sd-v3 .hp-choice { transition: none; }
}

html.sd-v3 .nav-rail .hud-nav-explore .hud-nav-sum {
  color: rgba(215, 247, 251, .94);
  opacity: .92;
  text-shadow: 0 1px 2px rgba(0,0,0,.98), 0 0 6px rgba(0,209,255,.18);
}
.sd-v3 .hp-choice strong,
.sd-v3 .hp-choice-copy > span,
html.sd-v3 #overlay-0 .hp-line,
html.sd-v3 #overlay-0 .hp-motto {
  text-shadow: 0 1px 1px rgba(0,0,0,.98), 0 0 2px rgba(0,0,0,.78);
}

/* ── Owner direction 2026-10-14: a brief hero ────────────────────────────
   The four core offerings as plain links to their hub sections, the About
   link that replaced the positioning drawer, the FAQ's pointer to the hubs,
   and chapter VII's unclassified-only note. */
.sd-v3 .hp-offers { display: flex; flex-wrap: wrap; gap: 6px 18px; width: 100%; margin: 14px 0 0; padding: 0; list-style: none; }
.sd-v3 .hp-offers li { margin: 0; padding: 0; }
.sd-v3 .hp-offers a { display: inline-flex; align-items: center; gap: 6px; min-height: 32px; font: 500 13.5px/1.3 var(--sd-font-body); letter-spacing: .01em; color: var(--sd-text-1); text-decoration: none; border-bottom: 1px solid rgba(244, 194, 104, .35); }
.sd-v3 .hp-offers a::after { content: "\203a"; color: var(--sd-gold); }
.sd-v3 .hp-offers a:hover { color: var(--sd-gold); border-bottom-color: var(--sd-gold); }
.sd-v3 .hp-offers a:focus-visible { outline: 2px solid var(--sd-cyan); outline-offset: 3px; }
html.sd-v3 #overlay-0 .hp-aboutlink { margin: 4px 0 0; font: 400 12.5px/1.4 var(--sd-font-body); }
html.sd-v3 #overlay-0 .hp-aboutlink a { display: inline-flex; align-items: center; min-height: 44px; color: var(--sd-text-2); text-decoration: none; }
html.sd-v3 #overlay-0 .hp-aboutlink a:hover { color: var(--sd-text-1); }
@media (min-width: 900px) {
  html.sd-v3.mode-immersive #overlay-0 .hp-aboutlink { margin-top: 0; }
}
.hp-faq-more { margin: 22px 0 0; font-family: Inter, -apple-system, system-ui, sans-serif; font-size: 14.5px; line-height: 1.6; color: rgba(232, 223, 208, .78); }
.hp-faq-more a { color: var(--gold); text-decoration: none; border-bottom: 1px dotted rgba(212, 160, 74, .55); }
#overlay-6 .so-cui { font-size: 13px !important; color: rgba(232, 223, 208, .72) !important; }
@media (max-width: 640px) { .sd-v3 .hp-offers { gap: 2px 14px; } }