/* PrimChat v274 — combined mega stages: reliability, UX, mobile, accessibility */
#pc274Toasts{position:fixed;right:16px;bottom:16px;z-index:2147483600;display:flex;flex-direction:column;gap:8px;max-width:min(360px,calc(100vw - 24px));pointer-events:none}.pc274-toast{padding:11px 14px;border-radius:13px;background:#101d2d;color:#f8fbff;border:1px solid #29435e;box-shadow:0 12px 35px rgba(0,0,0,.28);font-size:13px;font-weight:700;animation:pc274in .18s ease}@keyframes pc274in{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:none}}
#pc274Offline{position:fixed;top:0;left:0;right:0;z-index:2147483590;padding:8px 12px;text-align:center;background:#7f1d1d;color:#fff;font-weight:800;font-size:12px;box-shadow:0 3px 14px rgba(0,0,0,.2)}body:has(#pc274Offline){padding-top:36px!important}
#pc274BackTop{position:fixed;right:16px;bottom:18px;z-index:2147483500;width:42px;height:42px;border:0;border-radius:50%;background:#0ea5e9;color:#fff;font-size:21px;font-weight:900;box-shadow:0 8px 24px rgba(0,0,0,.24);opacity:0;transform:translateY(12px);pointer-events:none;transition:.18s ease}#pc274BackTop.show{opacity:1;transform:none;pointer-events:auto}#pc274BackTop:hover{filter:brightness(1.08)}
a.pc274-active{font-weight:900!important}
button.pc274-busy,[type=submit].pc274-busy{opacity:.65!important;cursor:wait!important}
html[data-site-theme="dark"] #pc274BackTop,html.site-theme-dark #pc274BackTop{background:#0284c7}
html[data-site-theme="dark"] #pc274Toasts,html.site-theme-dark #pc274Toasts{color:#fff}
@media(max-width:640px){#pc274Toasts{right:8px;bottom:74px;max-width:calc(100vw - 16px)}#pc274BackTop{right:10px;bottom:70px;width:38px;height:38px;font-size:18px}.pc274-toast{font-size:12px;padding:9px 11px}body:has(#pc274Offline){padding-top:34px!important}}
@media(prefers-reduced-motion:reduce){*,*::before,*::after{scroll-behavior:auto!important;animation-duration:.001ms!important;animation-iteration-count:1!important;transition-duration:.001ms!important}}
@media(max-width:380px){#pc274BackTop{width:36px;height:36px;right:8px}.pc274-toast{max-width:calc(100vw - 20px)}}