.bottom-nav{display:none}body.quiz-playing .bottom-nav{display:none!important}@media (max-width:1024px){body.has-bottom-nav.quiz-playing{padding-bottom:env(safe-area-inset-bottom)}body.has-bottom-nav .site-header{display:none}body.has-bottom-nav{padding-bottom:calc(58px + env(safe-area-inset-bottom))}body.has-bottom-nav main{padding-top:env(safe-area-inset-top)}.bottom-nav{position:fixed;left:0;right:0;bottom:0;z-index:300;display:flex;align-items:stretch;justify-content:space-around;height:calc(58px + env(safe-area-inset-bottom));padding-bottom:env(safe-area-inset-bottom);padding-left:env(safe-area-inset-left);padding-right:env(safe-area-inset-right);background:var(--header-bg);backdrop-filter:blur(12px);border-top:1px solid var(--border)}}.bn-item{flex:1 1 0;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;padding:6px 2px;border:0;background:none;color:var(--text-muted);font:inherit;text-decoration:none;cursor:pointer;-webkit-tap-highlight-color:transparent}.bn-item.active{color:var(--route-green)}.bn-item:active{transform:scale(.94)}.bn-ico{position:relative;display:grid;place-items:center}.bn-ico svg{width:23px;height:23px}.bn-lbl{font-size:.66rem;font-weight:700;letter-spacing:.01em}.bn-dot{position:absolute;top:-3px;right:-6px;width:9px;height:9px;border-radius:50%;background:#e5484d;border:2px solid var(--surface)}.bn-sheet-scrim{position:fixed;inset:0;z-index:310;display:flex;align-items:flex-end;background:rgba(4,6,4,.5);backdrop-filter:blur(2px)}.bn-sheet{width:100%;background:var(--surface);border-radius:20px 20px 0 0;border-top:1px solid var(--border);padding:10px 16px calc(18px + env(safe-area-inset-bottom));box-shadow:0 -14px 44px -12px rgba(0,0,0,.45);animation:bn-sheet-up .2s ease}@keyframes bn-sheet-up{0%{transform:translateY(100%)}}.bn-sheet-grip{display:block;width:42px;height:4px;margin:4px auto 16px;border-radius:99px;background:var(--border)}.bn-sheet-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}.bn-sheet-item{display:flex;flex-direction:column;align-items:center;gap:7px;padding:15px 6px;border-radius:14px;background:var(--surface-2);color:var(--text);text-decoration:none;font-size:.8rem;font-weight:700;text-align:center}.bn-sheet-item:active{transform:scale(.97)}.bn-sheet-ico{position:relative;display:grid;place-items:center}.bn-sheet-ico svg{width:24px;height:24px;color:var(--route-green)}.bn-sheet-foot{display:flex;align-items:center;justify-content:space-between;margin-top:16px;padding-top:14px;border-top:1px solid var(--border)}.bn-logout{display:inline-flex;align-items:center;gap:8px;padding:8px 6px;border:0;background:none;color:var(--text-muted);font:inherit;font-weight:700;cursor:pointer}@media (prefers-reduced-motion:reduce){.bn-sheet{animation:none}.bn-item:active,.bn-sheet-item:active{transform:none}}.expiry-banner{background:color-mix(in srgb,var(--sign-yellow,#e6b800) 16%,var(--surface));border-bottom:1px solid color-mix(in srgb,var(--sign-yellow,#e6b800) 40%,var(--border))}.expiry-banner-inner{display:flex;align-items:center;justify-content:space-between;gap:12px;padding-block:9px;flex-wrap:wrap}.expiry-banner-text{font-size:.9rem;font-weight:600;color:var(--text)}.expiry-banner-actions,.expiry-banner-text{display:inline-flex;align-items:center;gap:8px}.expiry-banner-btn{display:inline-flex;align-items:center;background:var(--route-green);color:#fff;font-weight:700;font-size:.85rem;padding:7px 14px;border-radius:9px;white-space:nowrap}.expiry-banner-btn:hover{filter:brightness(1.05)}.expiry-banner-close{display:inline-flex;border:none;background:none;color:var(--text-muted);cursor:pointer;padding:4px;border-radius:8px}.expiry-banner-close:hover{color:var(--text)}