/* Shared product navigation, following quantjourney.cloud's disclosure panels. */
.landing .nav-in { height: 76px; gap: 24px; }
.landing .landing-nav-links { display: flex; align-items: center; overflow: visible; gap: 24px; margin-right: 12px; }
.landing .landing-nav-links > a,
.landing .gateway-dropdown > summary { padding: 27px 0; margin: 0; color: var(--ink-2); font-size: 16px; font-weight: 400; line-height: 1; border: 0; cursor: pointer; white-space: nowrap; text-decoration: none; }
.landing .gateway-dropdown { position: relative; }
.landing .gateway-dropdown > summary { display: flex; align-items: center; gap: 7px; list-style: none; }
.landing .gateway-dropdown > summary::-webkit-details-marker { display: none; }
.landing .gateway-dropdown > summary::after { content: ''; width: 5px; height: 5px; border-right: 1px solid currentColor; border-bottom: 1px solid currentColor; transform: translateY(-2px) rotate(45deg); transition: transform .14s ease; }
.landing .gateway-dropdown[open] > summary::after { transform: translateY(1px) rotate(225deg); }
.landing .gateway-dropdown > summary:is(:hover,.active),
.landing .gateway-dropdown[open] > summary,
.landing .landing-nav-links > a:is(:hover,.active) { color: var(--accent); }
.landing .gateway-nav-panel { position: absolute; z-index: 50; top: 100%; left: -22px; display: grid; width: 360px; padding: 14px; border: 1px solid var(--rule); border-radius: 9px; background: var(--bg); box-shadow: 0 24px 52px #0b16231f; }
.landing .gateway-nav-panel a { display: grid; gap: 4px; padding: 12px 14px; margin: 0; border: 0; border-radius: 5px; white-space: normal; }
.landing .gateway-nav-panel a:is(:hover,:focus-visible,.active) { background: var(--surface-2); border: 0; }
.landing .gateway-nav-panel strong { color: var(--ink); font-size: 16px; font-weight: 500; }
.landing .gateway-nav-panel span { color: var(--ink-2); font-size: 14px; font-weight: 400; line-height: 1.4; }
.landing .gateway-menu-toggle { display: none; width: 42px; height: 42px; border: 1px solid var(--rule); border-radius: 6px; background: transparent; color: var(--ink); cursor: pointer; }
.landing .gateway-menu-toggle span { display: block; width: 18px; height: 1px; margin: 5px auto; background: currentColor; transition: transform .18s ease; }
.landing .gateway-menu-toggle[aria-expanded=true] span:first-child { transform: translateY(3px) rotate(45deg); }
.landing .gateway-menu-toggle[aria-expanded=true] span:last-child { transform: translateY(-3px) rotate(-45deg); }
.landing .landing-nav :focus-visible { outline: 2px solid var(--accent); outline-offset: 4px; }
@media (max-width: 1100px) {
  .landing .nav-in { flex-wrap: wrap; height: auto; min-height: 72px; padding-block: 12px; gap: 10px; }
  .landing .gateway-menu-toggle { display: block; margin-left: auto; }
  .landing .nav-actions { margin-left: 0; }
  .landing .landing-nav-links { display: none; order: 4; flex: 0 0 100%; margin: 0; padding-block: 10px; max-height: 70dvh; overflow-y: auto; }
  .landing .landing-nav-links.is-open { display: grid; gap: 0; }
  .landing .landing-nav:has(.landing-nav-links.is-open) { background: var(--bg); }
  .landing .gateway-dropdown { position: static; }
  .landing .gateway-dropdown > summary,
  .landing .landing-nav-links > a { display: flex; justify-content: center; padding: 18px 6px; font-size: 23px; }
  .landing .gateway-nav-panel { position: static; width: min(100%,440px); margin: 0 auto 12px; padding: 10px 0; border: 0; background: transparent; box-shadow: none; }
}
@media (max-width: 600px) {
  .landing .nav-in { padding-inline: 16px; }
  .landing .landing-brand { font-size: 14px; gap: 6px; }
  .landing .nav-actions { flex-basis: 100%; justify-content: flex-end; }
  .landing .nav-actions .nav-cta { margin-left: 8px; }
}

/* Same fine underline treatment as the Backtester navigation. */
.landing .landing-nav-links > a, .landing .gateway-dropdown > summary { position: relative; }
.landing .landing-nav-links > a::before, .landing .gateway-dropdown > summary::before {
  content: ''; position: absolute; left: 0; right: 0; bottom: 17px; height: 1px;
  background: currentColor; transform: scaleX(0); transform-origin: left center;
  transition: transform 180ms ease;
}
.landing .landing-nav-links > a:is(:hover,:focus-visible,.active)::before,
.landing .gateway-dropdown > summary:is(:hover,:focus-visible,.active)::before,
.landing .gateway-dropdown[open] > summary::before { transform: scaleX(1); }
.landing .gateway-nav-panel a:is(:hover,:focus-visible,.active) strong { text-decoration: underline; text-decoration-thickness: 1px; text-underline-offset: 5px; }
@media (max-width: 1100px) {
  .landing .landing-nav-links > a::before, .landing .gateway-dropdown > summary::before { left: 25%; right: 25%; bottom: 9px; }
}