:root{--bg:#0d0d12;--panel:#15151d;--panel2:#1c1c27;--line:#2a2a37;--text:#f6f6fb;--muted:#9292a7;--accent:#8b5cf6;--accent2:#6d3eea;--danger:#ef4444}
*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text);font-family:Inter,system-ui,-apple-system,Segoe UI,sans-serif;height:100dvh;overflow:hidden}button,input,textarea{font:inherit}.hidden{display:none!important}.center{min-height:100dvh;display:grid;place-items:center;padding:20px;background:radial-gradient(circle at top,#261849 0,#0d0d12 42%)}.card{background:#14141c;border:1px solid #282837;border-radius:24px;box-shadow:0 20px 80px #0008}.auth-card{width:min(430px,100%);padding:30px}.logo{font-size:48px}h1{margin:4px 0}.muted,small{color:var(--muted)}.tabs{display:flex;gap:6px;background:#0f0f15;padding:5px;border-radius:12px;margin:22px 0 14px}.tabs button{flex:1;border:0;background:transparent;color:var(--muted);padding:10px;border-radius:8px}.tabs button.active{background:var(--panel2);color:white}input,textarea{width:100%;background:#0f0f15;color:white;border:1px solid var(--line);outline:none;border-radius:12px;padding:13px;margin:6px 0}input:focus,textarea:focus{border-color:var(--accent)}button{cursor:pointer}.primary{width:100%;padding:13px;border:0;border-radius:12px;background:linear-gradient(135deg,var(--accent),var(--accent2));color:white;font-weight:700;margin-top:8px}.error{min-height:22px;color:#ff7b7b;margin-top:10px}.app{display:grid;grid-template-columns:330px 1fr;height:100dvh}.sidebar{border-right:1px solid var(--line);background:var(--panel);display:flex;flex-direction:column;min-width:0}.side-head,.chat-head{height:68px;border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;padding:0 16px}.side-head small,.chat-head small{display:block;margin-top:2px}.side-head button,.actions button,.mobile-only{background:#222230;color:white;border:0;border-radius:10px;padding:9px 11px}.add{padding:12px;display:flex;gap:8px}.add input{margin:0}.add button{width:46px;border:0;border-radius:12px;background:var(--accent);color:white;font-size:22px}.friends{overflow:auto}.friend{padding:12px 14px;display:grid;grid-template-columns:44px 1fr auto;gap:10px;align-items:center;cursor:pointer;border-bottom:1px solid #1e1e29}.friend:hover,.friend.active{background:#20202c}.avatar{width:44px;height:44px;border-radius:50%;display:grid;place-items:center;background:#2b2440;font-weight:800}.friend b,.friend p{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.friend p{margin:4px 0 0;color:var(--muted);font-size:13px}.badge{background:var(--accent);border-radius:999px;min-width:20px;height:20px;padding:0 6px;display:grid;place-items:center;font-size:12px}.dot{width:9px;height:9px;border-radius:50%;background:#555}.dot.on{background:#22c55e}.chat{min-width:0;background:linear-gradient(#101018,#0d0d12);position:relative}.empty{height:100%;display:grid;place-content:center;text-align:center;color:var(--muted)}.empty div{font-size:62px}.fill{height:100%;display:flex;flex-direction:column}.actions{display:flex;gap:8px}.messages{flex:1;overflow:auto;padding:18px;display:flex;flex-direction:column;gap:7px}.msg{max-width:min(70%,680px);padding:10px 13px;border-radius:16px;background:#232331;align-self:flex-start;word-break:break-word}.msg.mine{align-self:flex-end;background:linear-gradient(135deg,#7c4cf2,#6335dc)}.msg time{display:block;font-size:10px;opacity:.62;margin-top:4px;text-align:right}.typing{height:22px;padding:0 18px;color:var(--muted);font-size:12px}.composer{display:flex;gap:10px;padding:12px;border-top:1px solid var(--line)}.composer textarea{resize:none;margin:0;max-height:120px}.send{width:48px;border:0;border-radius:14px;background:var(--accent);color:white}.mobile-only{display:none}.modal{position:fixed;inset:0;background:#000b;display:grid;place-items:center;z-index:20;padding:20px}.callbox{width:min(900px,100%);height:min(680px,90dvh);background:#111118;border:1px solid var(--line);border-radius:20px;position:relative;overflow:hidden}.callbox video#remoteVideo{width:100%;height:100%;object-fit:cover;background:black}.callbox video#localVideo{position:absolute;right:16px;top:16px;width:180px;aspect-ratio:16/10;object-fit:cover;border-radius:12px;background:#222}.callbox #callTitle{position:absolute;left:20px;top:18px;background:#0008;padding:8px 12px;border-radius:10px}.danger{position:absolute;bottom:20px;left:50%;transform:translateX(-50%);border:0;border-radius:999px;background:var(--danger);color:white;padding:13px 22px}
@media(max-width:760px){.app{grid-template-columns:1fr}.sidebar{position:absolute;inset:0;z-index:2}.chat{position:absolute;inset:0;z-index:1}.app.chat-open .sidebar{display:none}.app.chat-open .chat{z-index:3}.mobile-only{display:inline-block}.msg{max-width:85%}.callbox video#localVideo{width:110px}}