/* Isolated menu preview: one sidebar, one scroll area, all routes in reach. */
body.menu-v3 {
  --menu-bg: #101522;
  --menu-edge: #ffffff0d;
  --menu-muted: #a2adc7;
  --menu-text: #c1c9df;
  --menu-accent: #bc9dff;
  display: grid;
  grid-template-columns: 280px minmax(0, 1fr);
  align-items: start;
}
body.menu-v3 .studio-rail { display: none !important; }
body.menu-v3 > main { grid-column: 2; min-width: 0; width: 100%; }
body.menu-v3 .sidebar {
  position: sticky;
  top: 0;
  left: 0;
  z-index: 45;
  display: flex;
  flex-direction: column;
  align-self: start;
  width: 280px;
  height: 100vh;
  height: 100dvh;
  min-height: 0;
  margin: 0;
  padding: 0;
  overflow: hidden;
  transform: none;
  border: 0;
  border-right: 1px solid var(--menu-edge);
  border-radius: 0;
  background: var(--menu-bg);
  box-shadow: none;
  backdrop-filter: none;
}

/* Brand and search stay above the scrolling navigation. */
body.menu-v3 .brand.menu-brand {
  display: flex;
  align-items: center;
  justify-content: flex-start;
  gap: 12px;
  flex: 0 0 auto;
  width: 100%;
  height: auto;
  min-height: 91px;
  padding: 23px 21px 21px;
  border: 0;
  background: transparent;
}
body.menu-v3 .menu-brand-mark {
  display: grid;
  place-items: center;
  flex: 0 0 39px;
  width: 39px;
  height: 39px;
  border: 1px solid #b79dff54;
  border-radius: 12px;
  background: linear-gradient(145deg, #9178ef, #554bb2);
  box-shadow: inset 0 1px 0 #ffffff23, 0 4px 15px #080a1629;
  color: #f6f2ff;
}
body.menu-v3 .menu-brand-mark svg {
  width: 24px;
  height: 24px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.7;
  stroke-linecap: round;
  stroke-linejoin: round;
}
body.menu-v3 .menu-brand-copy { display: flex; flex-direction: column; gap: 7px; min-width: 0; }
body.menu-v3 .menu-brand-copy strong { color: #f1f3ff; font-size: 23px; line-height: 1; font-weight: 650; letter-spacing: -.7px; }
body.menu-v3 .menu-brand-copy small { color: #9b9fc2; font-size: 9px; line-height: 1; font-weight: 550; letter-spacing: 1.35px; }
body.menu-v3 .menu-close { display: none; }
body.menu-v3 .menu-search-wrap { flex: 0 0 auto; min-width: 0; padding: 0 17px 16px; }
body.menu-v3 .menu-search {
  display: flex;
  align-items: center;
  gap: 8px;
  min-width: 0;
  min-height: 44px;
  padding: 0 11px;
  border: 1px solid #6c6b8c70;
  border-radius: 10px;
  background: #171d2e;
  color: #a6b0cd;
  transition: border-color .15s ease, box-shadow .15s ease;
}
body.menu-v3 .menu-search:focus-within { border-color: #b39af1; box-shadow: 0 0 0 3px #9d81ee17; }
body.menu-v3 .menu-search > svg { width: 17px; height: 17px; flex: 0 0 17px; color: #a2aac8; }
body.menu-v3 .menu-search #navSearch {
  width: 100%;
  min-width: 0;
  height: 42px;
  min-height: 42px;
  margin: 0;
  padding: 0;
  border: 0;
  border-radius: 0;
  outline: none;
  background: transparent;
  box-shadow: none;
  color: #ebeafa;
  font-size: 13px;
  font-weight: 400;
}
body.menu-v3 .menu-search #navSearch::placeholder { color: #a2acc8; opacity: 1; }
body.menu-v3 .menu-search #navSearch::-webkit-search-cancel-button { display: none; }
body.menu-v3 .menu-search kbd { flex-shrink: 0; padding: 3px 4px; border: 1px solid #ffffff14; border-radius: 4px; color: #a3a9c4; font-family: inherit; font-size: 9px; line-height: 1.1; white-space: nowrap; }
body.menu-v3 .menu-clear {
  display: grid;
  place-items: center;
  flex: 0 0 28px;
  width: 28px;
  height: 32px;
  min-height: 32px;
  padding: 0;
  border: 0;
  border-radius: 6px;
  background: transparent;
  box-shadow: none;
  color: #c0bdd7;
  font-size: 19px;
  line-height: 1;
}
body.menu-v3 .menu-clear svg { width: 14px; height: 14px; }
body.menu-v3 .menu-clear:hover { background: #ffffff08; color: #fff; }
body.menu-v3 .menu-search-status { margin: 9px 3px 0; color: #b3b9d0; font-size: 11px; line-height: 1.5; }

/* Only this central area scrolls; the brand, search and footer remain available. */
body.menu-v3 #navigation {
  display: flex;
  flex: 1 1 auto;
  flex-direction: column;
  gap: 0;
  width: 100%;
  min-width: 0;
  min-height: 0;
  max-height: none;
  margin: 0;
  padding: 0 14px 17px;
  overflow-x: hidden;
  overflow-y: auto;
  overscroll-behavior: contain;
  scrollbar-width: thin;
  scrollbar-color: #56516e transparent;
  scrollbar-gutter: stable;
}
body.menu-v3 #navigation::-webkit-scrollbar { width: 5px; }
body.menu-v3 #navigation::-webkit-scrollbar-thumb { background: #56516e; border-radius: 10px; }
body.menu-v3 .menu-shortcuts { display: grid; gap: 6px; padding: 0 0 18px; margin: 0 0 9px; border-bottom: 1px solid var(--menu-edge); }
body.menu-v3 #navigation .menu-link {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: flex-start;
  flex: 0 0 auto;
  gap: 11px;
  width: 100%;
  min-width: 0;
  min-height: 44px;
  margin: 0;
  padding: 11px 12px;
  border: 1px solid transparent;
  border-radius: 9px;
  background: transparent;
  box-shadow: none;
  color: var(--menu-text);
  font-size: 13px;
  font-weight: 450;
  line-height: 1.45;
  text-align: left;
  white-space: normal;
  transition: background .15s ease, border-color .15s ease, color .15s ease;
}
body.menu-v3 #navigation .menu-link > svg { width: 18px; height: 18px; flex: 0 0 18px; color: #a2aed0 !important; }
body.menu-v3 #navigation .menu-link-label { display: block; min-width: 0; flex: 1; overflow-wrap: anywhere; }
body.menu-v3 #navigation .menu-link-note { flex-shrink: 0; min-width: 22px; padding: 3px 5px; border: 1px solid #bda1ff23; border-radius: 5px; background: #bda1ff0b; color: #c3adeb; font-size: 10px; line-height: 1.2; text-align: center; }
body.menu-v3 #navigation .menu-link:hover { background: #ffffff06; border-color: #ffffff09; color: #f1edff; transform: none; }
body.menu-v3 #navigation .menu-link.active,
body.menu-v3 #navigation .menu-link[aria-current="page"] {
  border-color: #ad93ef45;
  background: linear-gradient(100deg, #3b315f, #282640);
  color: #f4efff;
  font-weight: 600;
  box-shadow: inset 0 1px 0 #ffffff07;
}
body.menu-v3 #navigation .menu-link.active::before,
body.menu-v3 #navigation .menu-link[aria-current="page"]::before { content: ''; position: absolute; top: 11px; bottom: 11px; left: -1px; width: 3px; border-radius: 0 3px 3px 0; background: #c4a4ff; }
body.menu-v3 #navigation .menu-link.active > svg,
body.menu-v3 #navigation .menu-link[aria-current="page"] > svg { color: #d2baff !important; }

/* Group headers and the NovaPlay branch have separate visual levels. */
body.menu-v3 #navigation details.menu-section,
body.menu-v3 #navigation details.menu-branch { display: block; min-width: 0; margin: 0; padding: 0; border: 0; border-radius: 0; background: transparent; }
body.menu-v3 #navigation details.menu-section { margin-top: 6px; }
body.menu-v3 #navigation .menu-section-heading {
  display: flex;
  align-items: center;
  gap: 8px;
  min-height: 45px;
  margin: 0 0 3px;
  padding: 10px 11px;
  border: 1px solid transparent;
  border-radius: 8px;
  color: #aab3ce;
  font-size: 11px;
  font-weight: 650;
  line-height: 1.35;
  letter-spacing: .65px;
  list-style: none;
  text-transform: uppercase;
  cursor: pointer;
}
body.menu-v3 #navigation .menu-section-heading > span { min-width: 0; flex: 1; }
body.menu-v3 #navigation summary::-webkit-details-marker { display: none; }
body.menu-v3 #navigation summary::marker { content: ''; }
body.menu-v3 #navigation .menu-section-heading:hover { background: #ffffff04; color: #deddf0; }
body.menu-v3 #navigation .menu-section-count { flex-shrink: 0; color: #a7a9c4; font-size: 10px; font-weight: 450; letter-spacing: 0; }
body.menu-v3 #navigation .menu-chevron { width: 15px; height: 15px; flex: 0 0 15px; color: #8c96b4; transition: transform .15s ease; }
body.menu-v3 #navigation .menu-section[open] > .menu-section-heading > .menu-chevron { transform: rotate(180deg); }
body.menu-v3 #navigation .menu-section.has-current > .menu-section-heading { color: #d6c8f4; }
body.menu-v3 #navigation .menu-section.has-current > .menu-section-heading .menu-section-count { color: #cbb5f0; }
body.menu-v3 #navigation .menu-section-links { display: flex; flex-direction: column; gap: 3px; padding: 0 0 9px; }
body.menu-v3 #navigation .menu-branch > summary {
  display: flex;
  align-items: center;
  gap: 11px;
  min-height: 44px;
  margin: 0;
  padding: 11px 12px;
  border: 1px solid transparent;
  border-radius: 9px;
  color: var(--menu-text);
  font-size: 13px;
  font-weight: 450;
  line-height: 1.45;
  list-style: none;
  cursor: pointer;
}
body.menu-v3 #navigation .menu-branch > summary > svg:not(.menu-chevron) { width: 18px; height: 18px; flex: 0 0 18px; color: #b69bdc; }
body.menu-v3 #navigation .menu-branch > summary > span { min-width: 0; flex: 1; }
body.menu-v3 #navigation .menu-branch > summary > small { color: #a7a4c3; font-size: 10px; }
body.menu-v3 #navigation .menu-branch > summary:hover { background: #ffffff06; color: #f1edff; }
body.menu-v3 #navigation .menu-branch[open] > summary > .menu-chevron { transform: rotate(180deg); }
body.menu-v3 #navigation .menu-branch.is-current-branch > summary { border-color: #a98beb24; background: #a98beb0b; color: #e4d8ff; font-weight: 550; }
body.menu-v3 #navigation .menu-branch-links { display: flex; flex-direction: column; gap: 3px; margin: 5px 0 6px 20px; padding: 1px 0 1px 10px; border-left: 1px solid #aaa0d42c; }
body.menu-v3 #navigation .menu-link.menu-child { min-height: 41px; gap: 7px; padding: 10px 10px; font-size: 12px; }
body.menu-v3 #navigation .menu-preview { flex-shrink: 0; max-width: 77px; padding: 3px 5px; border: 1px solid #d5bb8e2a; border-radius: 4px; color: #d5c1a1; background: #d5bb8e08; font-size: 9px; font-weight: 450; line-height: 1.25; text-align: center; }
body.menu-v3 #navigation .menu-search-empty { margin: 18px 11px; padding: 17px 12px; border: 1px dashed #aaa0d431; border-radius: 10px; color: #c0b9d4; font-size: 12px; line-height: 1.7; text-align: center; }

/* Compact footer, independent of the navigation's scroll position. */
body.menu-v3 .sidebar > footer {
  display: flex;
  flex: 0 0 auto;
  flex-direction: column;
  gap: 12px;
  min-height: 0;
  margin: 0;
  padding: 14px 18px 16px;
  border-top: 1px solid var(--menu-edge);
  background: var(--menu-bg);
}
body.menu-v3 .menu-footer-link { display: flex; align-items: center; gap: 10px; min-height: 35px; padding: 7px 3px; border-radius: 6px; color: #c0b7d7; font-size: 12px; line-height: 1.4; text-decoration: none; }
body.menu-v3 .menu-footer-link > svg { width: 16px; height: 16px; flex: 0 0 16px; color: #b2a0d1; }
body.menu-v3 .menu-footer-link > span { flex: 1; min-width: 0; }
body.menu-v3 .menu-footer-link > b { margin-left: auto; color: #a699c0; font-size: 15px; font-weight: 400; }
body.menu-v3 .menu-footer-link:hover { color: #f0e7ff; }
body.menu-v3 .menu-footer-meta { display: flex; align-items: center; justify-content: space-between; gap: 9px; color: #a0a9c0; font-size: 10px; line-height: 1.3; }
body.menu-v3 .menu-footer-meta > span:last-child { display: inline-flex; align-items: center; gap: 5px; color: #b8a6d8; }
body.menu-v3 .menu-footer-meta > span:last-child::before { content: ''; width: 4px; height: 4px; border-radius: 50%; background: #b69cdd; }

/* A quieter header with a single help action. */
body.menu-v3 .topbar { min-height: 72px; height: 72px; padding: 0 32px; gap: 16px; border-bottom-color: #ffffff0c; background: #0d101c; }
body.menu-v3 .menu-current-route { display: flex; flex: 1 1 auto; align-items: center; gap: 9px; min-width: 0; overflow: hidden; color: #c1c2dc; font-size: 13px; line-height: 1.4; }
body.menu-v3 #menuCurrentGroup { flex: 0 0 auto; color: #a1aac4; font-size: 12px; }
body.menu-v3 .menu-current-route > b { flex: 0 0 auto; color: #727c9a; font-size: 12px; font-weight: 400; }
body.menu-v3 .menu-current-route > small { color: #a1aac4; font-size: 12px; }
body.menu-v3 .menu-current-route > strong { min-width: 0; flex: 1 1 auto; overflow: hidden; color: #e7e3f6; font-size: 13px; font-weight: 500; text-overflow: ellipsis; white-space: nowrap; }
body.menu-v3 .menu-help-action { display: inline-flex; align-items: center; justify-content: center; gap: 7px; flex: 0 0 auto; min-height: 39px; margin-left: auto; padding: 8px 12px; border: 1px solid #ffffff1b; border-radius: 9px; background: #1b2135; box-shadow: none; color: #d1c8e5; font-size: 12px; font-weight: 500; text-decoration: none; }
body.menu-v3 .menu-help-action svg { width: 16px; height: 16px; }
body.menu-v3 .menu-help-action:hover { border-color: #baa3ee54; background: #25263c; transform: none; }
body.menu-v3 .topbar .header-icon { display: none; }
body.menu-v3 #novaPlayTabs { display: none !important; }
body.menu-v3 .modules-intro h2[tabindex="-1"]:focus { outline: none; }
body.menu-v3 #toast { left: calc(50% + 140px); }
body.menu-v3 .menu-close:focus-visible,
body.menu-v3 .menu-clear:focus-visible,
body.menu-v3 #navigation .menu-link:focus-visible,
body.menu-v3 #navigation summary:focus-visible,
body.menu-v3 .menu-footer-link:focus-visible,
body.menu-v3 .menu-help-action:focus-visible { outline: 2px solid #c1a3ff; outline-offset: 2px; }
body.menu-v3 .sidebar [hidden] { display: none !important; }

@media (min-width: 1121px) {
  body.menu-v3 .mobile-menu-button, body.menu-v3 .sidebar-backdrop { display: none !important; }
}
@media (max-width: 1120px) {
  body.menu-v3 { display: block; }
  body.menu-v3 > main { width: 100%; }
  body.menu-v3 .sidebar {
    position: fixed;
    top: 0;
    left: 0;
    z-index: 90;
    width: min(300px, calc(100vw - 32px));
    max-width: calc(100vw - 32px);
    height: 100vh;
    height: 100dvh;
    margin: 0;
    transform: translateX(-100%);
    transition: transform .2s ease;
    box-shadow: 15px 0 50px #03060c59;
    visibility: hidden;
  }
  body.menu-v3.studio-menu-open { overflow: hidden; }
  body.menu-v3.studio-menu-open .sidebar { transform: translateX(0); visibility: visible; }
  body.menu-v3 .brand.menu-brand { min-height: 88px; padding: 20px 16px 18px 20px; gap: 11px; }
  body.menu-v3 .menu-brand-copy strong { font-size: 22px; }
  body.menu-v3 .menu-brand-copy small { font-size: 8px; letter-spacing: 1.05px; }
  body.menu-v3 .menu-close { display: inline-flex; align-items: center; justify-content: center; flex: 0 0 44px; width: 44px; min-height: 44px; margin-left: auto; padding: 0; border: 1px solid #ffffff13; border-radius: 9px; background: #ffffff03; box-shadow: none; color: #cac6df; font-size: 23px; line-height: 1; }
  body.menu-v3 .menu-close svg { width: 18px; height: 18px; }
  body.menu-v3 .menu-close:hover { background: #ffffff08; color: #fff; transform: none; }
  body.menu-v3 .menu-search-wrap { padding-inline: 17px; padding-bottom: 15px; }
  body.menu-v3 .menu-search { padding-right: 4px; }
  body.menu-v3 .menu-search #navSearch { font-size: 16px; }
  body.menu-v3 .menu-search kbd { display: none; }
  body.menu-v3 .menu-clear { width: 44px; height: 44px; min-height: 44px; flex-basis: 44px; }
  body.menu-v3 #navigation { padding-inline: 14px; }
  body.menu-v3 #navigation .menu-link,
  body.menu-v3 #navigation .menu-link.menu-child,
  body.menu-v3 #navigation .menu-section-heading,
  body.menu-v3 #navigation .menu-branch > summary { min-height: 44px; }
  body.menu-v3 #navigation .menu-link { font-size: 13px; }
  body.menu-v3 #navigation .menu-link.menu-child { font-size: 12px; }
  body.menu-v3 .menu-footer-link { min-height: 44px; }
  body.menu-v3 .sidebar > footer { gap: 6px; padding-top: 9px; padding-bottom: max(13px, env(safe-area-inset-bottom)); }
  body.menu-v3 .sidebar-backdrop { position: fixed; inset: 0; z-index: 85; width: 100vw; height: 100dvh; max-width: none; margin: 0; padding: 0; border: 0; border-radius: 0; background: #050710b8; box-shadow: none; }
  body.menu-v3.studio-menu-open .sidebar-backdrop { display: block; }
  body.menu-v3 .topbar { position: sticky; top: 0; z-index: 40; min-height: 64px; height: 64px; padding: 0 22px; gap: 12px; }
  body.menu-v3 .mobile-menu-button { display: inline-flex; align-items: center; justify-content: center; flex: 0 0 44px; width: 44px; height: 44px; min-height: 44px; margin: 0; padding: 0; border: 1px solid #ffffff18; border-radius: 9px; background: #171d2e; box-shadow: none; color: #d7d2e9; }
  body.menu-v3 .mobile-menu-button svg { width: 19px; height: 19px; }
  body.menu-v3 .menu-help-action { min-height: 44px; }
  body.menu-v3 .menu-current-route { flex: 1; gap: 6px; }
  body.menu-v3 #menuCurrentGroup, body.menu-v3 .menu-current-route > b { display: none; }
  body.menu-v3 .menu-current-route > small { display: none; }
  body.menu-v3 .menu-current-route > strong { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
  body.menu-v3 #toast { left: 50%; }
}
@media (max-width: 500px) {
  body.menu-v3 .topbar { padding: 0 15px; gap: 9px; }
  body.menu-v3 .menu-current-route { font-size: 12px; }
  body.menu-v3 .menu-current-route > strong { font-size: 12px; }
  body.menu-v3 .menu-help-action { padding-inline: 10px; font-size: 11px; gap: 6px; }
  body.menu-v3 .menu-help-action svg { width: 15px; height: 15px; }
  body.menu-v3 .topbar .demo-chip { display: none; }
}
@media (prefers-reduced-motion: reduce) {
  body.menu-v3 .sidebar, body.menu-v3 #navigation .menu-link,
  body.menu-v3 #navigation .menu-chevron { transition: none; }
}