/* PrimChat v266 — mega functional UX layer */
:root{--pc266-ring:0 0 0 3px rgba(37,99,235,.18);--pc266-safe-bottom:env(safe-area-inset-bottom,0px)}
.pc266-toast{position:fixed;right:18px;bottom:18px;z-index:99999;max-width:min(390px,calc(100vw - 36px));padding:12px 15px;border-radius:14px;background:rgba(20,25,35,.96);color:#fff;box-shadow:0 12px 35px rgba(0,0,0,.25);font:600 14px/1.35 system-ui,sans-serif;opacity:0;transform:translateY(12px);transition:.2s;pointer-events:none}.pc266-toast.show{opacity:1;transform:none}.pc266-offline{background:#7f1d1d}.pc266-online{background:#166534}
.pc266-top-progress{position:fixed;top:0;left:0;width:0;height:3px;z-index:100000;transition:width .25s ease}
.pc266-top-progress.loading{width:72%;animation:pc266-progress 1.1s infinite alternate}@keyframes pc266-progress{to{width:94%}}
.pc266-badge{display:inline-flex!important;align-items:center;justify-content:center;min-width:18px;height:18px;padding:0 5px;margin-left:5px;border-radius:999px;font:800 10px/1 system-ui,sans-serif;background:#ef4444;color:#fff;vertical-align:middle;box-sizing:border-box}.pc266-badge[data-zero="1"]{display:none!important}
.pc266-nav-current{position:relative}.pc266-nav-current::after{content:"";position:absolute;left:12px;right:12px;bottom:3px;height:2px;border-radius:9px;background:currentColor;opacity:.55}
.pc266-focus:focus-visible{outline:none;box-shadow:var(--pc266-ring)}
.pc266-backtop{position:fixed;right:16px;bottom:calc(18px + var(--pc266-safe-bottom));z-index:9998;width:44px;height:44px;border:0;border-radius:50%;display:grid;place-items:center;opacity:0;pointer-events:none;transform:translateY(8px);transition:.2s;background:#2563eb;color:#fff;font-size:19px;box-shadow:0 8px 25px rgba(0,0,0,.2)}.pc266-backtop.show{opacity:1;pointer-events:auto;transform:none}
html[data-site-theme="dark"] .pc266-toast,body.dark .pc266-toast{background:rgba(15,18,25,.97)}
html[data-site-theme="dark"] .pc266-backtop,body.dark .pc266-backtop{box-shadow:0 8px 25px rgba(0,0,0,.5)}
@media(max-width:700px){.pc266-toast{right:10px;bottom:calc(72px + var(--pc266-safe-bottom));max-width:calc(100vw - 20px)}.pc266-backtop{right:10px;bottom:calc(74px + var(--pc266-safe-bottom));width:40px;height:40px}.pc266-nav-current::after{left:7px;right:7px}.pc266-badge{min-width:17px;height:17px;font-size:9px}}