#private-chat-dialog{width:min(1000px,calc(100vw - 32px));height:min(720px,calc(100dvh - 32px));max-height:calc(100dvh - 32px);padding:16px;border-radius:16px;overflow:hidden}
#private-chat-dialog[open]{display:flex;flex-direction:column;gap:12px}#private-chat-dialog .dialog-header{margin:0;align-items:center}#private-chat-dialog h2{font-size:17px;font-weight:400;margin:0}
.private-chat-layout{display:grid;grid-template-columns:180px minmax(0,1fr);flex:1;min-height:0;border:1px solid var(--site-line);border-radius:10px;overflow:hidden}
.private-chat-sidebar{display:flex;flex-direction:column;padding:12px;border-right:1px solid var(--site-line);min-height:0}
#private-thread-list{display:flex;flex-direction:column;gap:6px;overflow:auto}#private-thread-list button{width:100%;min-height:36px;text-align:left;padding:8px;border:0;border-radius:7px;background:transparent;font-size:12px}#private-thread-list button.active{background:#f1f5e7}#private-thread-list p{font-size:12px;line-height:1.8}
.private-chat-main{display:flex;flex-direction:column;min-width:0;min-height:0}.private-chat-peer-line{display:flex;align-items:center;gap:12px;padding:10px 14px;border-bottom:1px solid var(--site-line);font-size:12px}.private-chat-peer-line small{font-size:11px}
#private-chat-messages{flex:1;min-height:0;overflow:auto;padding:16px;display:flex;flex-direction:column;gap:20px}.private-chat-empty{font-size:12px;text-align:center;margin:20px 0}
@keyframes private-bell-sway{0%,100%{transform:rotate(0)}15%{transform:rotate(-15deg)}30%{transform:rotate(15deg)}45%{transform:rotate(-10deg)}60%{transform:rotate(10deg)}75%{transform:rotate(0)}}
#notifications-button.has-alert>svg{animation:private-bell-sway 1.5s ease-in-out infinite;transform-origin:50% 15%}
@media(prefers-reduced-motion:reduce){#notifications-button.has-alert>svg{animation:none}}
@media(max-width:600px){.private-chat-layout{grid-template-columns:112px minmax(0,1fr)}.private-chat-sidebar{padding:8px}#private-chat-messages{padding:10px}.private-chat-peer-line{flex-wrap:wrap;gap:3px}#private-chat-dialog{padding:12px}}