:root{font-family:Inter,system-ui,Segoe UI,Arial,sans-serif;color:#e5e7eb;background:#0f172a}*{box-sizing:border-box}body{margin:0}.app{height:100vh;display:grid;grid-template-columns:330px 1fr}.chat{display:flex;flex-direction:column;min-width:0;background:linear-gradient(180deg,#111827,#0b1220)}header{height:72px;padding:14px 20px;border-bottom:1px solid #253044;display:flex;justify-content:space-between;align-items:center}h1{font-size:20px;margin:0}small{color:#9ca3af}a{color:#93c5fd}.messages{flex:1;overflow:auto;padding:20px;display:flex;flex-direction:column;gap:10px}.empty{margin:auto;color:#9ca3af}.msg{max-width:70%;padding:10px 13px;border-radius:16px;line-height:1.35;white-space:pre-wrap;box-shadow:0 2px 8px #0003}.incoming{align-self:flex-start;background:#1f2937;border-bottom-left-radius:4px}.outgoing{align-self:flex-end;background:#2563eb;border-bottom-right-radius:4px}.meta{font-size:11px;opacity:.65;margin-top:5px}.composer{display:grid;grid-template-columns:220px 1fr 95px;gap:10px;padding:14px;border-top:1px solid #253044;background:#0f172a}input,textarea,button{border-radius:12px;border:1px solid #334155;background:#111827;color:#f9fafb;padding:11px;font:inherit}textarea{resize:none}button{background:#2563eb;border:0;font-weight:700;cursor:pointer}button:hover{background:#1d4ed8}.contacts{border-left:1px solid #253044;background:#111827;padding:16px;overflow:auto}h2{font-size:16px;margin:0 0 12px}.contact{padding:12px;border-radius:14px;margin:8px 0;background:#0f172a;cursor:pointer;border:1px solid transparent}.contact:hover,.contact.active{border-color:#2563eb}.phone{font-weight:700}.preview{color:#9ca3af;font-size:13px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.time{font-size:11px;color:#64748b;margin-top:4px}.login{height:100vh;display:grid;place-items:center}.loginbox{width:min(360px,90vw);padding:28px;background:#111827;border:1px solid #334155;border-radius:20px;display:grid;gap:14px}.error{color:#fca5a5}@media(max-width:800px){.app{grid-template-columns:1fr}.contacts{grid-row:1;height:35vh;border-left:0;border-bottom:1px solid #253044}.composer{grid-template-columns:1fr}.chat{height:65vh}}

.name{font-weight:700;font-size:15px}
.phone.small{font-size:11px;color:#64748b;margin-top:1px}
.contact-top{display:flex;align-items:flex-start;justify-content:space-between;gap:8px}.contact-id{min-width:0}.edit-name{cursor:pointer;opacity:.85;font-size:11px;padding:4px 7px;border-radius:8px;background:#1e293b;color:#cbd5e1;border:1px solid #334155;line-height:1}.edit-name:hover{opacity:1;background:#2563eb;color:#fff}