/* Scoped shared navigation; the homepage's approved CSS remains untouched. */
.site-navigation {
  --menu-surface: #0c0e10;
  --menu-text: #fff;
  --menu-muted: #b3b7ba;
  --menu-accent: #00e5ff;
  position: fixed;
  z-index: 20;
  top: var(--navigation-top, max(16px, env(safe-area-inset-top)));
  left: max(16px, env(safe-area-inset-left));
  color: var(--menu-text);
  font-family: "Helvetica Neue", Helvetica, Arial, sans-serif;
  font-size: 14px;
  font-weight: 400;
  line-height: 1.5;
}
.site-navigation [hidden] {
  display: none !important;
}
.site-navigation .menu-toggle,
.site-navigation .site-menu > summary {
  box-sizing: border-box;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  justify-content: center;
  gap: 3px;
  min-width: 180px;
  min-height: 60px;
  padding: 9px 20px;
  color: var(--menu-text);
  border: 1px solid #62676b;
  border-left: 3px solid var(--menu-accent);
  background: var(--menu-surface);
  font: inherit;
  font-size: 14px;
  cursor: pointer;
  list-style: none;
  letter-spacing: 0.14em;
}
.site-navigation .site-menu > summary::-webkit-details-marker {
  display: none;
}
.site-navigation .menu-trigger-note {
  color: var(--menu-muted);
  font-size: 12px;
  letter-spacing: 0.08em;
}
.site-navigation .menu-panel {
  position: absolute;
  top: calc(100% + 10px);
  left: 0;
  box-sizing: border-box;
  width: min(420px, calc(100vw - 32px));
  max-height: calc(
    100svh - var(--navigation-top, max(16px, env(safe-area-inset-top))) -
      max(16px, env(safe-area-inset-bottom)) - 70px
  );
  overflow-y: auto;
  overscroll-behavior: contain;
  padding: 20px;
  border: 1px solid #62676b;
  background: var(--menu-surface);
  box-shadow: 0 16px 48px rgba(0, 0, 0, 0.5);
}
.site-navigation .menu-identity {
  margin: 0 0 8px;
  font-size: 12px;
  line-height: 1.7;
  letter-spacing: 0.1em;
}
.site-navigation .menu-close {
  display: flex;
  justify-content: space-between;
  align-items: center;
  width: 100%;
  min-height: 44px;
  margin: 0 0 16px;
  padding: 8px;
  border: 0;
  border-bottom: 1px solid #343a40;
  color: var(--menu-muted);
  background: transparent;
  font: inherit;
  font-size: 12px;
  letter-spacing: 0.1em;
  cursor: pointer;
}
.site-navigation .menu-close span {
  font-size: 22px;
  color: var(--menu-text);
}
.site-navigation .menu-group {
  margin: 16px 8px 6px;
  color: var(--menu-muted);
  font-size: 12px;
  letter-spacing: 0.08em;
}
.site-navigation ul {
  list-style: none;
  margin: 0;
  padding: 0;
}
.site-navigation a {
  box-sizing: border-box;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 4px 10px;
  min-height: 48px;
  padding: 12px 8px;
  color: var(--menu-text);
  text-decoration: none;
  letter-spacing: 0.06em;
  border-left: 2px solid transparent;
}
.site-navigation a:hover {
  background: #202529;
}
.site-navigation a[aria-current="page"] {
  border-left-color: var(--menu-accent);
  background: #202529;
}
.site-navigation .menu-note {
  color: var(--menu-muted);
  font-size: 12px;
  letter-spacing: 0;
}
.site-navigation button:focus-visible,
.site-navigation .site-menu > summary:focus-visible,
.site-navigation a:focus-visible {
  outline: 2px solid #fff;
  outline-offset: 2px;
}
@media (forced-colors: active) {
  .site-navigation a[aria-current="page"] {
    border-left-color: Highlight;
  }
}

/* Fixed edge tab and non-modal drawer; independent of media playback. */
.site-navigation {
  top: max(96px, env(safe-area-inset-top));
  left: 0;
}
.site-navigation .menu-toggle,
.site-navigation .site-menu > summary {
  width: max(44px, env(safe-area-inset-left));
  min-width: 44px;
  min-height: 132px;
  align-items: center;
  padding: 14px 8px;
  border-left: 0;
  border-right: 2px solid var(--menu-accent);
}
.site-navigation .menu-label-desktop {
  writing-mode: vertical-rl;
}
.site-navigation .menu-label-mobile {
  display: none;
}
.site-navigation .menu-panel {
  top: 0;
  left: 100%;
  width: min(360px, calc(100vw - 44px - max(12px, env(safe-area-inset-right))));
  max-height: calc(
    100svh - max(96px, env(safe-area-inset-top)) -
      max(12px, env(safe-area-inset-bottom))
  );
  animation: drawer-reveal 160ms ease-out;
}
@keyframes drawer-reveal {
  from {
    transform: translateX(-8px);
  }
  to {
    transform: translateX(0);
  }
}
@media (max-width: 767px) {
  .site-navigation {
    top: var(--navigation-top, max(16px, env(safe-area-inset-top)));
    left: max(12px, env(safe-area-inset-left));
  }
  .site-navigation .menu-toggle,
  .site-navigation .site-menu > summary {
    width: auto;
    min-width: 84px;
    min-height: 44px;
    padding: 8px 16px;
    border-left: 2px solid var(--menu-accent);
    border-right: 1px solid #62676b;
  }
  .site-navigation .menu-label-desktop {
    display: none;
  }
  .site-navigation .menu-label-mobile {
    display: inline;
  }
  .site-navigation .menu-panel {
    top: calc(100% + 8px);
    left: 0;
    width: min(
      360px,
      calc(
        100vw - max(12px, env(safe-area-inset-left)) -
          max(12px, env(safe-area-inset-right))
      )
    );
    max-height: calc(
      100svh - var(--navigation-top, max(16px, env(safe-area-inset-top))) -
        52px - max(12px, env(safe-area-inset-bottom))
    );
    padding: 16px;
  }
}
@media (prefers-reduced-motion: reduce) {
  .site-navigation .menu-panel {
    animation: none;
    scroll-behavior: auto;
  }
}
/* Opaque baseline for engines without backdrop filtering. Opacity belongs to
   the surface only; never fade the drawer's text or interactive controls. */
.site-navigation .menu-panel {
  background: rgba(10, 12, 16, 0.96);
  border-color: rgba(190, 204, 214, 0.35);
}
@supports (
  (backdrop-filter: blur(1px)) or (-webkit-backdrop-filter: blur(1px))
) {
  .site-navigation .menu-panel {
    background: rgba(10, 12, 16, 0.5);
    -webkit-backdrop-filter: blur(4px);
    backdrop-filter: blur(4px);
  }
  /* Light text backing protects white-background contrast without obscuring artwork. */
  .site-navigation
    .menu-panel
    :is(.menu-identity, .menu-group, .menu-close, a) {
    background-color: rgba(10, 12, 16, 0.2);
  }
  .site-navigation .menu-identity {
    padding: 4px 8px;
  }
  .site-navigation .menu-group {
    padding: 4px 8px;
  }
  .site-navigation .menu-panel a:hover,
  .site-navigation .menu-panel a[aria-current="page"] {
    background-color: rgba(20, 31, 36, 0.25);
  }
}
@media (prefers-contrast: more) {
  .site-navigation .menu-panel {
    background: #0a0c10;
    -webkit-backdrop-filter: none;
    backdrop-filter: none;
    border-color: #fff;
  }
  .site-navigation .menu-panel :is(.menu-group, .menu-close, .menu-note) {
    color: #fff;
  }
}
@media (prefers-reduced-transparency: reduce) {
  .site-navigation .menu-panel {
    background: #0a0c10;
    -webkit-backdrop-filter: none;
    backdrop-filter: none;
  }
}
@media (forced-colors: active) {
  .site-navigation .menu-panel {
    background: Canvas;
    color: CanvasText;
    border-color: CanvasText;
    -webkit-backdrop-filter: none;
    backdrop-filter: none;
  }
}

/* Native disclosure groups preserve keyboard and screen-reader semantics. */
.site-navigation .menu-category {
  border-top: 1px solid rgba(190, 204, 214, 0.22);
}
.site-navigation .menu-category > summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  min-height: 48px;
  box-sizing: border-box;
  margin: 8px 0;
  padding: 10px 12px;
  color: #fff;
  cursor: pointer;
  list-style: none;
  letter-spacing: 0.08em;
}
.site-navigation .menu-category > summary::-webkit-details-marker {
  display: none;
}
.site-navigation .menu-category > summary::marker {
  content: "";
}
.site-navigation .menu-chevron {
  color: var(--menu-accent);
  font-size: 22px;
  transition: transform 160ms ease-out;
}
.site-navigation .menu-category[open] > summary .menu-chevron {
  transform: rotate(90deg);
}
.site-navigation .menu-category ul {
  margin: 0 0 12px 12px;
  border-left: 1px solid rgba(0, 229, 255, 0.35);
}
.site-navigation .menu-category a {
  padding-left: 16px;
}
.site-navigation .menu-category > summary:focus-visible {
  outline: 2px solid #fff;
  outline-offset: 2px;
}
@media (prefers-reduced-motion: reduce) {
  .site-navigation .menu-chevron {
    transition: none;
  }
}

.site-navigation .menu-panel :is(.menu-close, .menu-note) {
  color: #fff;
}