:root{color-scheme:light;font:15px/1.5 system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;color:#17212e;background:#f6f8fc}
*{box-sizing:border-box}body{margin:0}a{color:#3d4cca}button,input,textarea{font:inherit}button{cursor:pointer}
.wrap{max-width:1050px;margin:auto;padding:22px}.head{display:flex;justify-content:space-between;gap:15px;align-items:center;border-bottom:1px solid #e2e5eb;background:#fff}
.brand{display:flex;align-items:center;gap:10px;color:#17212e;text-decoration:none;font-weight:780;letter-spacing:-.03em}.mark{display:grid;place-items:center;width:34px;height:34px;border-radius:11px;background:#5d47b9;color:#fff}
.pill{padding:7px 12px;background:#f0efff;color:#51419d;border-radius:50px;font-size:12px;font-weight:600}
main{max-width:900px;margin:28px auto;padding:0 16px}.panel{background:#fff;border:1px solid #e3e6ef;border-radius:18px;box-shadow:0 8px 28px #2731440a;overflow:hidden}
.card{padding:24px}.row{display:flex;align-items:center;justify-content:space-between;gap:12px}.field{margin:12px 0}label{display:block;font-weight:650;font-size:13px;margin:0 0 5px}input,textarea{width:100%;padding:12px;border:1px solid #d7dce8;border-radius:10px;background:#fff;color:#17212e}input:focus,textarea:focus{outline:2px solid #9282da;border-color:#5d47b9}
button.primary{background:#5945af;color:white;border:0;border-radius:10px;padding:11px 18px;font-weight:700}button.secondary{background:white;border:1px solid #d9dcea;border-radius:10px;padding:9px 13px;color:#34425b}button:disabled{opacity:.55;cursor:not-allowed}
.muted{color:#6b7280;font-size:13px}.error{color:#ae2932;min-height:20px;font-size:13px}.hidden,[hidden]{display:none!important}
.messages{height:410px;overflow:auto;padding:18px;background:#f7f8fc;display:flex;flex-direction:column;gap:10px}
.bubble{max-width:88%;padding:11px 13px;border:1px solid #e0e3ed;border-radius:15px;background:#fff;white-space:pre-wrap;overflow-wrap:anywhere}
.bubble.mine{align-self:flex-end;background:#ede9fc;border-color:#e1d9ff}.bubble small{display:block;color:#7c8190;font-size:11px;margin-top:5px}
.compose{padding:15px;border-top:1px solid #e2e5ec;display:flex;gap:10px}.compose textarea{min-height:50px;height:50px}.compose button{align-self:flex-end}
.inbox{display:grid;grid-template-columns:300px minmax(0,1fr);min-height:600px}.side{border-right:1px solid #e6e8ee;padding:13px;overflow:auto;max-height:80vh}
.thread{display:block;width:100%;text-align:left;border:0;border-bottom:1px solid #eee;padding:14px 9px;background:#fff;color:#29354b}
.thread:hover,.thread.selected{background:#f1effd}.thread strong{display:block}.thread small{display:block;color:#737d91;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.unread:after{content:"●";color:#6a49ca;margin-left:5px}
.chathead{padding:15px;border-bottom:1px solid #e6e8ee}.view{min-width:0;display:flex;flex-direction:column}.view .messages{flex:1;height:490px}
.toolbar{display:flex;gap:8px;flex-wrap:wrap;padding:9px;border-top:1px solid #eee}
@media(max-width:700px){.inbox{display:block}.side{max-height:230px;border-right:0;border-bottom:1px solid #eee}.view .messages{height:45vh;min-height:300px}.head.wrap{padding:14px}.card{padding:17px}.compose{gap:6px}.wrap{padding:14px}}