@media(max-width:1100px){
  .nav{position:relative}
  .nav .menu{min-width:44px;min-height:44px;flex-shrink:0;cursor:pointer}
  .nav .navlinks.open{display:flex;position:absolute;top:100%;right:0;left:auto;width:min(300px,calc(100vw - 32px));box-sizing:border-box;padding:12px;flex-direction:column;align-items:stretch;gap:4px;background:var(--paper);color:var(--ink);border:1px solid var(--line);border-radius:12px;box-shadow:0 12px 32px #0003;max-height:calc(100dvh - 150px);overflow-y:auto}
  .navlinks.open a{display:block;padding:12px 14px;min-height:44px;box-sizing:border-box}
  .navlinks.open .join{text-align:center;margin-top:4px}
  .menu:focus-visible,.navlinks a:focus-visible{outline:3px solid var(--sea);outline-offset:3px}
}

.navlinks a.forum-link{display:inline-flex;align-items:center;justify-content:center;border:1px solid var(--sea);border-radius:8px;padding:7px 11px;color:var(--sea);white-space:nowrap}
.navlinks a.forum-link:hover{background:var(--sea);color:var(--paper)}
@media(min-width:1101px) and (max-width:1280px){.nav .navlinks{gap:10px;font-size:.8rem}.navlinks a.forum-link{padding:7px 8px}}

.navlinks .topics-menu{position:relative;display:flex;align-items:center}
.navlinks .topics-menu summary{list-style:none;cursor:pointer;white-space:nowrap;padding:8px 10px;color:var(--ink)}
.navlinks .topics-menu summary::-webkit-details-marker{display:none}
.navlinks .topics-menu summary::after{content:"⌄";margin-left:7px;font-size:.8em;color:var(--muted)}
.navlinks .topics-menu[open] summary{color:var(--sea)}
.navlinks .topics-submenu{position:absolute;z-index:1001;top:calc(100% + 8px);left:0;min-width:245px;display:grid;gap:2px;padding:6px;background:var(--paper);border:1px solid var(--line);border-radius:12px;box-shadow:0 12px 28px #0002}
.navlinks .topics-submenu a{display:block;padding:10px 12px;border-radius:8px;white-space:nowrap}
.navlinks .topics-submenu a:hover{background:var(--line);color:var(--sea)}
.navlinks .topics-menu summary:focus-visible,.navlinks .topics-submenu a:focus-visible{outline:3px solid var(--sea);outline-offset:3px}
@media(max-width:1100px){
  .navlinks.open .topics-menu{display:block;width:100%}
  .navlinks.open .topics-menu summary{padding:12px 14px;min-height:44px;box-sizing:border-box}
  .navlinks.open .topics-submenu{position:static;min-width:0;margin:0 0 4px;padding:0 0 0 12px;border:0;border-radius:0;box-shadow:none;background:transparent}
  .navlinks.open .topics-submenu a{padding:10px 14px 10px 24px;white-space:normal}
}

/* Keep desktop navigation labels together when the topic submenu is present. */
@media(min-width:1101px){
  .navlinks{display:flex;flex-wrap:nowrap;align-items:center;gap:clamp(5px,.75vw,10px);min-width:0}
  .navlinks>a,.navlinks>.topics-menu{flex:0 0 auto;white-space:nowrap}
  .navlinks{font-size:clamp(.72rem,.84vw,.9rem)}
  .navlinks .topics-menu summary{padding-inline:6px}
  .navlinks a.forum-link{padding:6px 8px}
}
/* Readable desktop labels and a usable menu on intermediate widths. */
@media(min-width:1201px){header .nav.wrap{width:calc(100% - 40px);max-width:1440px}.nav .navlinks{font-size:13px;gap:9px}.navlinks>a,.navlinks summary{min-height:44px;display:inline-flex;align-items:center}}
@media(min-width:1101px) and (max-width:1200px){.nav{position:relative}.nav .navlinks{display:none}.nav .menu{display:block;min-height:44px;min-width:44px}.nav .navlinks.open{display:flex;position:absolute;top:100%;right:0;width:300px;padding:12px;flex-direction:column;align-items:stretch;background:var(--paper);border:1px solid var(--line);border-radius:12px;max-height:calc(100dvh - 150px);overflow:auto}.navlinks.open a{padding:12px 14px}.navlinks.open .topics-menu{display:block}.navlinks.open .topics-submenu{position:static;min-width:0;box-shadow:none;border:0}}
/* Seven readable topic destinations, including on short screens. */
.navlinks .topics-submenu{min-width:290px;max-width:min(380px,calc(100vw - 32px));max-height:calc(100dvh - 150px);overflow-y:auto}.navlinks .topics-submenu a{white-space:normal;line-height:1.4}