:root{color-scheme:light;--ink:#111827;--muted:#667085;--line:#d8dee8;--panel:#ffffff;--soft:#f4f7fb;--accent:#2563eb;--accent-dark:#1d4ed8;--danger:#dc2626}*{box-sizing:border-box}body,html{height:100%;margin:0}body{background:#eef3f8;color:var(--ink);font-family:Arial,Helvetica,sans-serif;overflow:hidden;-webkit-font-smoothing:antialiased}button,input{font:inherit}button{cursor:pointer;-webkit-tap-highlight-color:transparent}button:disabled{cursor:not-allowed;opacity:.55}.shell{display:grid;grid-template-columns:310px minmax(0,1fr);height:100dvh;min-height:680px}.sidebar{background:#111827;color:#ffffff;display:flex;flex-direction:column;gap:18px;padding:22px;min-height:0}.brand{align-items:center;display:flex;gap:12px;min-width:0}.authPanel h1,.brand h1,.chatTitle h2{margin:0}.authPanel p,.brand p,.chatTitle p{color:var(--muted);margin:4px 0 0}.brand p{color:#bfdbfe}.brand h1,.brand p,.chatTitle h2,.chatTitle p,.person span{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.avatar,.logo{align-items:center;border-radius:8px;color:#ffffff;display:inline-flex;flex:0 0 auto;font-weight:800;justify-content:center}.logo{background:var(--accent);height:42px;width:42px}.logo.big{height:58px;width:58px}.avatar{height:38px;width:38px}.privacy{align-items:center;background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.12);border-radius:8px;color:#dbeafe;display:flex;gap:10px;padding:12px}.roomSwitcher{display:grid;grid-gap:8px;gap:8px}.roomSwitcher label{color:#bfdbfe;font-size:12px;font-weight:700;text-transform:uppercase}.roomSwitcher select{-webkit-appearance:none;-moz-appearance:none;appearance:none;background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.16);border-radius:8px;color:#ffffff;min-height:42px;outline:none;padding:0 12px}.roomSwitcher option{color:#111827}.people{display:flex;flex:1 1;flex-direction:column;gap:8px;overflow:auto;overscroll-behavior:contain;scrollbar-width:thin}.person{align-items:center;background:transparent;border:1px solid transparent;border-radius:8px;color:#ffffff;display:grid;grid-gap:10px;gap:10px;grid-template-columns:38px 1fr auto;min-height:56px;padding:8px;text-align:left;transition:background .16s ease,border-color .16s ease,transform .16s ease}.person.active,.person:hover{background:rgba(255,255,255,.1);border-color:rgba(255,255,255,.14)}.person:active{transform:scale(.99)}.person small{color:#93c5fd;font-size:12px}.dangerButton,.ghostButton,.iconButton,.iconTextButton,.linkButton,.primaryButton,.sendButton{align-items:center;border-radius:8px;border:0;display:inline-flex;gap:8px;justify-content:center}.ghostButton{background:rgba(255,255,255,.1);color:#ffffff;min-height:42px}.chat{background:var(--soft);display:grid;grid-template-rows:auto auto 1fr auto;height:100dvh;min-width:0;min-height:0}.chatHeader{background:var(--panel);border-bottom:1px solid var(--line);justify-content:space-between;padding:18px 22px}.chatHeader,.chatTitle{align-items:center;display:flex;min-width:0}.chatTitle{gap:12px}.chatTitle>div{min-width:0}.chatTitle h2{font-size:20px}.chatTitle p{font-size:13px}.headerActions{display:flex;gap:8px}.iconButton{background:#eef2f7;color:var(--ink);height:40px;width:40px}.callPanel{background:#e8edf4;border-bottom:1px solid var(--line);display:grid;grid-gap:12px;gap:12px;padding:12px 22px}.videoGrid{display:grid;grid-gap:10px;gap:10px;grid-template-columns:repeat(2,minmax(120px,1fr))}.videoGrid video{aspect-ratio:16/9;background:#172033;border-radius:8px;min-height:120px;object-fit:cover;width:100%}.callActions{align-items:center;display:flex;flex-wrap:wrap;gap:10px}.iconTextButton{background:#ffffff;color:var(--ink)}.dangerButton,.iconTextButton{min-height:38px;padding:0 14px}.dangerButton{background:var(--danger);color:#ffffff}.callStatus{align-items:center;color:var(--muted);display:inline-flex;gap:6px;font-size:14px}.messages{flex-direction:column;gap:10px;overflow:auto;overscroll-behavior:contain;padding:22px;scroll-behavior:smooth}.messageRow,.messages{display:flex}.messageRow.mine{justify-content:flex-end}.bubble{background:#ffffff;border:1px solid var(--line);border-radius:8px;max-width:min(620px,75%);padding:10px 12px;position:relative;word-break:break-word}.mine .bubble{background:#dbeafe;border-color:#bfdbfe}.bubble.deleted{color:var(--muted);font-style:italic}.bubble p{line-height:1.45;margin:0;overflow-wrap:anywhere;white-space:pre-wrap}.bubble span{color:var(--muted);display:inline-block;font-size:11px;margin-top:5px}.bubble button{background:transparent;border:0;color:var(--muted);margin-left:8px;padding:0;vertical-align:middle}.typingDot{color:var(--muted);font-size:13px;padding-left:4px}.composer{background:var(--panel);border-top:1px solid var(--line);display:grid;grid-gap:10px;gap:10px;grid-template-columns:1fr 48px;padding:14px 22px max(14px,env(safe-area-inset-bottom))}.authPanel input,.composer input{border:1px solid var(--line);border-radius:8px;min-height:46px;outline:none;padding:0 14px;width:100%}.authPanel input:focus,.composer input:focus{border-color:var(--accent);box-shadow:0 0 0 3px rgba(37,99,235,.12)}.primaryButton,.sendButton{background:var(--accent);color:#ffffff}.primaryButton:hover,.sendButton:hover{background:var(--accent-dark)}.authShell{align-items:center;background:linear-gradient(135deg,#eef3f8,#ffffff 55%,#e8f7f1);display:flex;min-height:100dvh;overflow:auto;padding:24px}.authPanel{background:#ffffff;border:1px solid var(--line);border-radius:8px;box-shadow:0 24px 80px rgba(17,24,39,.12);display:grid;grid-gap:14px;gap:14px;margin:0 auto;max-width:430px;padding:28px;width:100%}.authPanel 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