*{box-sizing:border-box}:root{--bg: #0f172a;--bg-2: #111c33;--panel: #1e293b;--panel-2: #253249;--text: #e2e8f0;--muted: #94a3b8;--accent: #38bdf8;--accent-hover: #0ea5e9;--danger: #ef4444;--border: #334155;--own-bubble: #0ea5e9;--other-bubble: #334155}html,body,#root{height:100%;margin:0}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,sans-serif;background:var(--bg);color:var(--text);-webkit-font-smoothing:antialiased;overscroll-behavior-y:none}button{font-family:inherit;cursor:pointer}a{color:var(--accent)}.auth-page{min-height:100%;display:flex;align-items:center;justify-content:center;padding:16px}.auth-card{background:var(--panel);border:1px solid var(--border);border-radius:12px;padding:28px;width:100%;max-width:380px;box-shadow:0 10px 30px #00000059}.auth-card h1{margin:0 0 6px;font-size:22px}.auth-card .subtitle{margin:0 0 20px;color:var(--muted);font-size:14px}.field{display:flex;flex-direction:column;gap:6px;margin-bottom:14px}.field label{font-size:13px;color:var(--muted)}.field input{padding:10px 12px;border-radius:8px;border:1px solid var(--border);background:var(--bg-2);color:var(--text);font-size:14px;outline:none}.field input:focus{border-color:var(--accent)}.btn{width:100%;padding:11px 14px;border:none;border-radius:8px;background:var(--accent);color:#0b1220;font-weight:600;font-size:14px}.btn:hover{background:var(--accent-hover)}.btn[disabled]{opacity:.6;cursor:not-allowed}.error{color:var(--danger);font-size:13px;margin:4px 0 10px}.switch-link{margin-top:14px;text-align:center;font-size:13px;color:var(--muted)}.switch-link button{background:none;border:none;color:var(--accent);padding:0;font:inherit}.chat-layout{display:flex;height:100vh;height:100dvh;width:100%;position:relative;overflow:hidden}.sidebar{width:260px;min-width:220px;background:var(--panel);border-right:1px solid var(--border);display:flex;flex-direction:column}.sidebar-header{padding:16px;border-bottom:1px solid var(--border);display:flex;align-items:center;justify-content:space-between;gap:8px}.sidebar-header .me{font-size:13px;color:var(--muted)}.sidebar-header .me strong{color:var(--text)}.logout-btn{background:none;border:1px solid var(--border);color:var(--muted);padding:6px 10px;border-radius:6px;font-size:12px}.logout-btn:hover{color:var(--text);border-color:var(--text)}.sidebar-section{padding:14px 16px 6px;font-size:11px;text-transform:uppercase;letter-spacing:.05em;color:var(--muted)}.room-list{list-style:none;margin:0;padding:0 8px}.room-list li{padding:10px 12px;border-radius:8px;cursor:pointer;color:var(--text);font-size:14px;display:flex;align-items:center;gap:8px}.room-list li:hover{background:var(--panel-2)}.room-list li.active{background:var(--accent);color:#0b1220;font-weight:600}.room-list .hash{opacity:.6}.online-list{list-style:none;margin:0;padding:0 8px 12px;overflow-y:auto}.online-list li{padding:6px 12px;font-size:13px;color:var(--text);display:flex;align-items:center;gap:8px}.online-dot{width:8px;height:8px;border-radius:50%;background:#22c55e;flex-shrink:0}.main{flex:1;display:flex;flex-direction:column;min-width:0}.main-header{padding:14px 18px;border-bottom:1px solid var(--border);display:flex;align-items:center;gap:10px;background:var(--panel)}.main-header .title{font-size:16px;font-weight:600}.main-header .subtitle{font-size:12px;color:var(--muted)}.back-btn{display:none;background:none;border:1px solid var(--border);color:var(--text);padding:6px 10px;border-radius:6px;font-size:13px}.messages{flex:1;overflow-y:auto;padding:18px;display:flex;flex-direction:column;gap:10px;background:var(--bg)}.msg{display:flex;flex-direction:column;max-width:70%}.msg.own{align-self:flex-end;align-items:flex-end}.msg-meta{font-size:11px;color:var(--muted);margin:0 6px 3px}.msg-bubble{padding:9px 13px;border-radius:14px;background:var(--other-bubble);color:var(--text);white-space:pre-wrap;word-wrap:break-word;line-height:1.35;font-size:14px}.msg.own .msg-bubble{background:var(--own-bubble);color:#0b1220}.typing{padding:6px 18px;font-size:12px;color:var(--muted);min-height:22px}.composer{display:flex;gap:10px;padding:12px 16px;padding-bottom:calc(12px + env(safe-area-inset-bottom,0px));border-top:1px solid var(--border);background:var(--panel);align-items:center}.composer input{flex:1 1 auto;min-width:0;width:100%;padding:11px 14px;background:var(--bg-2);border:1px solid var(--border);border-radius:999px;color:var(--text);font-size:16px;outline:none}.composer input:focus{border-color:var(--accent)}.send-btn{width:auto;flex-shrink:0;padding:0 18px;height:42px;border-radius:999px;background:var(--accent);border:none;color:#0b1220;font-weight:600;font-size:14px}.send-btn:hover{background:var(--accent-hover)}.sidebar-overlay{display:none}@media (max-width: 720px){.sidebar{position:fixed;left:0;top:0;bottom:0;width:82%;max-width:320px;z-index:20;transform:translate(-100%);transition:transform .25s ease}.sidebar.open{transform:translate(0)}.sidebar-overlay{display:none;position:fixed;top:0;right:0;bottom:0;left:0;background:#00000080;z-index:15}.sidebar-overlay.open{display:block}.back-btn{display:inline-block}.msg{max-width:85%}.messages{padding:14px}.composer{padding:10px 12px;padding-bottom:calc(10px + env(safe-area-inset-bottom,0px));gap:8px}.send-btn{padding:0 14px}.main-header{padding:12px 14px}}