/* ---- language picker (protocol §0n) ---- */
.nv-lang-pill{position:fixed;left:14px;bottom:14px;z-index:900;display:inline-flex;align-items:center;gap:6px;height:34px;padding:0 11px;border-radius:999px;border:1px solid rgba(255,255,255,.16);background:rgba(16,18,26,.86);color:#eef1f7;font:600 11.5px/1 Inter,system-ui,sans-serif;letter-spacing:.02em;cursor:pointer;backdrop-filter:blur(12px);box-shadow:0 8px 24px rgba(2,4,10,.35)}
.nv-lang-pill:hover{border-color:rgba(139,124,255,.6);color:#fff}
.nv-lang-pill b{font-weight:700;font-size:10.5px;opacity:.85}
[data-theme="light"] .nv-lang-pill{background:rgba(255,255,255,.94);color:#16203a;border-color:rgba(15,23,42,.14);box-shadow:0 8px 22px rgba(15,23,42,.14)}
.nv-lang-panel{position:fixed;z-index:901;width:min(360px,calc(100vw - 24px));max-height:min(66vh,520px);display:none;flex-direction:column;border-radius:14px;border:1px solid rgba(255,255,255,.14);background:rgba(14,16,23,.98);color:#eef1f7;box-shadow:0 24px 60px rgba(2,4,10,.6);overflow:hidden;font:400 12px/1.5 Inter,system-ui,sans-serif;backdrop-filter:blur(16px)}
.nv-lang-panel.is-open{display:flex}
[data-theme="light"] .nv-lang-panel{background:#fff;color:#16203a;border-color:rgba(15,23,42,.14);box-shadow:0 24px 60px rgba(15,23,42,.24)}
.nv-lang-head{display:flex;flex-direction:column;gap:3px;padding:13px 14px 9px;border-bottom:1px solid rgba(255,255,255,.08)}
.nv-lang-head strong{font-size:13px;font-weight:650}
.nv-lang-head span{font-size:10.5px;opacity:.62}
.nv-lang-search{display:block;width:100%;height:32px;margin:9px 0 0;padding:0 10px;border-radius:9px;border:1px solid rgba(255,255,255,.16);background:rgba(255,255,255,.06);color:inherit;font:400 12px/1 Inter,system-ui,sans-serif}
.nv-lang-search:focus{outline:2px solid rgba(139,124,255,.65);outline-offset:1px}
.nv-lang-list{overflow-y:auto;padding:6px;display:flex;flex-direction:column;gap:1px}
.nv-lang-item{display:flex;align-items:center;gap:8px;width:100%;padding:7px 9px;border:none;border-radius:8px;background:transparent;color:inherit;font:inherit;text-align:left;cursor:pointer}
.nv-lang-item:hover{background:rgba(139,124,255,.16)}
.nv-lang-item.is-active{background:rgba(139,124,255,.24);font-weight:600}
.nv-lang-item em{font-style:normal;font-weight:600}
.nv-lang-item i{font-style:normal;opacity:.6;font-size:11px;margin-left:auto;white-space:nowrap}
.nv-lang-empty{padding:16px;opacity:.7;text-align:center}
.nv-lang-foot{display:flex;justify-content:space-between;gap:8px;padding:9px 14px;border-top:1px solid rgba(255,255,255,.08);font-size:10.5px;opacity:.62}
@media (max-width:520px){.nv-lang-pill{left:10px;bottom:10px;height:32px;padding:0 9px}.nv-lang-panel{max-height:70vh}}