:root{--bg-void: #07080a;--bg-base: #0d0f12;--bg-panel: #131519;--bg-hover: #1a1d22;--bg-active: #1e2228;--border: rgba(255,255,255,.07);--border-hi: rgba(255,255,255,.13);--accent: #5b8af0;--accent-dim: rgba(91,138,240,.15);--accent-glow: rgba(91,138,240,.35);--accent-mid: rgba(91,138,240,.5);--green: #3ecf8e;--green-dim: rgba(62,207,142,.15);--red: #f05b5b;--red-dim: rgba(240,91,91,.12);--amber: #f0b95b;--text-hi: #eceef2;--text-main: #b8bcc8;--text-muted:#5c6070;--text-dim: #363a44;--bubble-me: #1a3461;--bubble-me-b: rgba(91,138,240,.2);--bubble-them: #15181e;--bubble-them-b: rgba(255,255,255,.06);--r-sm: 8px;--r-md: 12px;--r-lg: 18px;--r-xl: 22px;--mono: "Space Mono", monospace;--sans: "DM Sans", system-ui, sans-serif;--sw: 320px;--hh: 62px}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}html,body{height:100%;width:100%;overflow:hidden;background:var(--bg-void);color:var(--text-main);font-family:var(--sans);font-size:14px;line-height:1.5;-webkit-font-smoothing:antialiased}::-webkit-scrollbar{width:3px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:var(--border-hi);border-radius:3px}button{cursor:pointer;font-family:var(--sans)}input,textarea{font-family:var(--sans)}#setup-screen{position:fixed;inset:0;z-index:1000;display:flex;align-items:center;justify-content:center;background:var(--bg-void);background-image:linear-gradient(rgba(91,138,240,.04) 1px,transparent 1px),linear-gradient(90deg,rgba(91,138,240,.04) 1px,transparent 1px);background-size:44px 44px}.auth-card{background:var(--bg-panel);border:1px solid var(--border-hi);border-radius:var(--r-xl);padding:48px 40px;width:min(420px,92vw);display:flex;flex-direction:column;align-items:center;box-shadow:0 32px 80px #0009,inset 0 0 0 1px #ffffff0a;animation:cardIn .5s cubic-bezier(.22,1,.36,1) both}@keyframes cardIn{0%{opacity:0;transform:translateY(18px) scale(.97)}to{opacity:1;transform:none}}.auth-icon{width:64px;height:64px;border-radius:18px;background:var(--accent-dim);border:1px solid rgba(91,138,240,.3);display:flex;align-items:center;justify-content:center;margin-bottom:28px;box-shadow:0 0 32px var(--accent-glow)}.auth-icon svg{width:28px;height:28px}.auth-card h1{font-family:var(--mono);font-size:22px;font-weight:700;color:var(--text-hi);letter-spacing:-.5px;margin-bottom:10px}.auth-card>p{color:var(--text-muted);font-size:13px;text-align:center;line-height:1.65;max-width:280px;margin-bottom:28px}.badges{display:flex;gap:7px;flex-wrap:wrap;justify-content:center;margin-bottom:28px}.badge{display:flex;align-items:center;gap:5px;background:var(--bg-hover);border:1px solid var(--border);border-radius:100px;padding:4px 10px;font-size:11px;color:var(--text-muted);font-family:var(--mono)}.badge .dot{width:6px;height:6px;border-radius:50%}.badge.g .dot{background:var(--green);box-shadow:0 0 6px var(--green)}.badge.b .dot{background:var(--accent);box-shadow:0 0 6px var(--accent)}.btn-prim{display:flex;align-items:center;justify-content:center;gap:8px;width:100%;background:var(--accent);color:#fff;border:none;padding:13px 22px;font-size:14px;font-weight:600;border-radius:var(--r-md);transition:all .2s}.btn-prim:hover:not(:disabled){background:#6f9bf2;box-shadow:0 0 22px var(--accent-glow)}.btn-prim:disabled{opacity:.45;cursor:not-allowed}.btn-prim.success{background:var(--green)}.btn-prim.success:hover{background:#52d9a0}.btn-ghost{display:flex;align-items:center;justify-content:center;gap:6px;background:transparent;border:1px solid var(--border-hi);color:var(--text-main);padding:10px 16px;border-radius:var(--r-sm);font-size:13px;font-weight:500;transition:all .15s}.btn-ghost:hover{background:var(--bg-hover);color:var(--text-hi)}.btn-ic{background:transparent;border:none;color:var(--text-muted);width:34px;height:34px;border-radius:var(--r-sm);display:flex;align-items:center;justify-content:center;transition:all .15s}.btn-ic:hover{background:var(--bg-hover);color:var(--text-hi)}.btn-ic svg{width:16px;height:16px;pointer-events:none}#app{display:none;height:100%;flex-direction:row}#sidebar{width:var(--sw);height:100%;flex-shrink:0;background:var(--bg-panel);border-right:1px solid var(--border);display:flex;flex-direction:column}.sb-head{height:var(--hh);padding:0 14px;border-bottom:1px solid var(--border);display:flex;align-items:center;gap:10px;flex-shrink:0}.my-av{width:34px;height:34px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-family:var(--mono);font-size:12px;font-weight:700;color:#fff;flex-shrink:0;text-transform:uppercase;transition:box-shadow .2s;cursor:pointer}.my-av:hover{box-shadow:0 0 0 3px #ffffff1a}.sb-title{flex:1;font-family:var(--mono);font-size:13px;font-weight:700;color:var(--text-hi);letter-spacing:.05em}.btn-invite{margin:10px 12px 4px;padding:10px 14px;background:var(--accent-dim);border:1px solid rgba(91,138,240,.22);border-radius:var(--r-md);color:var(--accent);font-size:13px;font-weight:500;display:flex;align-items:center;gap:8px;transition:all .2s}.btn-invite:hover{background:#5b8af038}.btn-invite svg{width:14px;height:14px}.search-wrap{padding:8px 12px;position:relative;flex-shrink:0}.search-wrap svg{position:absolute;left:22px;top:50%;transform:translateY(-50%);width:13px;height:13px;color:var(--text-muted);pointer-events:none}.search-box{width:100%;background:var(--bg-hover);border:1px solid var(--border);border-radius:20px;padding:7px 12px 7px 32px;color:var(--text-hi);font-size:13px;outline:none;transition:border-color .15s}.search-box:focus{border-color:var(--accent-mid)}.search-box::placeholder{color:var(--text-muted)}#clist{flex:1;overflow-y:auto}.no-contacts{padding:40px 20px;text-align:center;color:var(--text-muted);font-size:13px;line-height:1.7}.ci{display:flex;align-items:center;gap:11px;padding:10px 14px;border-bottom:1px solid var(--border);cursor:pointer;transition:background .1s;position:relative}.ci:hover{background:var(--bg-hover)}.ci.active{background:var(--bg-active)}.ci.active:before{content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:var(--accent);border-radius:0 2px 2px 0}.ci.dead{opacity:.6}.ci-av{width:42px;height:42px;border-radius:50%;flex-shrink:0;display:flex;align-items:center;justify-content:center;font-family:var(--mono);font-size:13px;font-weight:700;color:#fff;text-transform:uppercase;position:relative}.ci-meta{flex:1;min-width:0}.ci-r1{display:flex;justify-content:space-between;align-items:center;margin-bottom:3px}.ci-name{font-weight:600;font-size:14px;color:var(--text-hi);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.ci-time{font-size:11px;color:var(--text-muted);font-family:var(--mono);flex-shrink:0;margin-left:6px}.ci-prev{font-size:12px;color:var(--text-muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.ci-r2{display:flex;align-items:center;justify-content:space-between}.unread-badge{background:var(--accent);color:#fff;font-size:10px;font-weight:700;min-width:18px;height:18px;border-radius:9px;display:flex;align-items:center;justify-content:center;padding:0 5px;flex-shrink:0;margin-left:6px}#chat-panel{flex:1;display:flex;flex-direction:column;min-width:0;position:relative}#empty-state{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;background:var(--bg-base)}#empty-state.hidden{display:none}.ei{width:72px;height:72px;border-radius:22px;background:var(--bg-hover);border:1px solid var(--border);display:flex;align-items:center;justify-content:center;margin-bottom:18px}.ei svg{width:30px;height:30px;color:var(--text-dim)}#empty-state h2{font-size:16px;font-weight:600;color:var(--text-main);margin-bottom:6px}#empty-state p{font-size:13px;color:var(--text-muted);text-align:center;max-width:210px}#chat-area{flex:1;display:none;flex-direction:column;min-height:0}#chat-area.visible{display:flex}.ch-head{height:var(--hh);padding:0 16px;border-bottom:1px solid var(--border);flex-shrink:0;display:flex;align-items:center;justify-content:space-between;background:var(--bg-panel);gap:10px}.ch-left{display:flex;align-items:center;gap:10px;min-width:0}.ch-right{display:flex;align-items:center;gap:4px;flex-shrink:0}#btn-back{display:none}.h-av{width:34px;height:34px;border-radius:50%;flex-shrink:0;font-family:var(--mono);font-size:12px;font-weight:700;color:#fff;display:flex;align-items:center;justify-content:center;text-transform:uppercase}.h-name{font-size:14px;font-weight:600;color:var(--text-hi);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.h-key{font-family:var(--mono);font-size:10px;color:var(--text-muted);margin-top:1px}.enc-pill{display:flex;align-items:center;gap:5px;background:var(--green-dim);border:1px solid rgba(62,207,142,.2);border-radius:100px;padding:3px 9px;font-size:10px;font-family:var(--mono);color:var(--green);flex-shrink:0}.enc-pill:before{content:"";width:5px;height:5px;background:var(--green);border-radius:50%;box-shadow:0 0 6px var(--green)}.dd-wrap{position:relative}.dd-menu{display:none;position:absolute;right:0;top:calc(100% + 6px);background:var(--bg-panel);border:1px solid var(--border-hi);border-radius:var(--r-md);box-shadow:0 12px 32px #0000008c;z-index:500;overflow:hidden;min-width:195px}.dd-menu.open{display:block}.dd-item{display:flex;align-items:center;gap:10px;padding:10px 14px;font-size:13px;color:var(--text-main);cursor:pointer;transition:background .1s}.dd-item:hover{background:var(--bg-hover);color:var(--text-hi)}.dd-item.red{color:var(--red)}.dd-item.red:hover{background:var(--red-dim)}.dd-item svg{width:14px;height:14px;flex-shrink:0}.dd-div{height:1px;background:var(--border)}#chat-win{flex:1;overflow-y:auto;padding:16px 12%;display:flex;flex-direction:column;background:var(--bg-base)}.date-sep{align-self:center;background:#1e2128f2;border:1px solid var(--border);border-radius:100px;padding:3px 12px;font-size:11px;font-family:var(--mono);color:var(--text-muted);margin:14px 0 6px;letter-spacing:.04em;backdrop-filter:blur(4px)}.mw{display:flex;width:100%;margin-top:2px}.mw.first-in-group{margin-top:10px}.mw.me{justify-content:flex-end}.mw.them{justify-content:flex-start}.mb{max-width:62%;padding:8px 12px 6px;border-radius:var(--r-lg);font-size:14px;line-height:1.55;word-break:break-word;-webkit-user-select:text;user-select:text;position:relative}.mb.me{background:var(--bubble-me);border:1px solid var(--bubble-me-b);color:#d4e4ff;border-bottom-right-radius:4px}.mb.them{background:var(--bubble-them);border:1px solid var(--bubble-them-b);color:var(--text-hi);border-bottom-left-radius:4px}.mb.me.mid{border-top-right-radius:4px;border-bottom-right-radius:4px}.mb.them.mid{border-top-left-radius:4px;border-bottom-left-radius:4px}.mb.me.last-in-group{border-bottom-right-radius:4px}.mb.them.last-in-group{border-bottom-left-radius:4px}.mb.me.failed-msg{border-color:var(--red);background:#f05b5b1a;cursor:pointer}.rq{background:#00000040;border-left:2px solid var(--accent-mid);border-radius:4px;padding:5px 9px;margin-bottom:6px;font-size:12px;color:#c8d7ff8c;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}.msg-text{white-space:pre-wrap}.msg-meta{display:flex;align-items:center;justify-content:flex-end;gap:3px;font-size:10px;margin-top:3px;opacity:.7;float:right;margin-left:12px}.mb.me .msg-meta{color:#b4c8ffcc}.mb.them .msg-meta{color:var(--text-muted)}.mb.me.failed-msg .msg-meta{color:var(--red);opacity:1}.tick svg{width:14px;height:14px;display:block}.tick.sent svg{color:#b4c8ff99}.tick.delivered svg{color:#b4c8ff99}.tick.read svg{color:#53bdeb}.tick.failed svg{color:var(--red)}.msg-text a{color:var(--accent);text-decoration:underline}.msg-text a:hover{opacity:.8}.input-zone{flex-shrink:0;background:var(--bg-panel);border-top:1px solid var(--border)}#reply-bar{display:none;align-items:center;gap:10px;padding:9px 14px;background:var(--bg-hover);border-bottom:1px solid var(--border)}#reply-bar.show{display:flex}.rb-line{width:3px;min-height:32px;align-self:stretch;background:var(--accent);border-radius:2px;flex-shrink:0}.rb-body{flex:1;min-width:0}.rb-label{font-size:11px;color:var(--accent);font-weight:600;margin-bottom:2px}.rb-text{font-size:12px;color:var(--text-muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.input-row{display:flex;align-items:flex-end;gap:10px;padding:10px 14px}#msg-ta{flex:1;background:var(--bg-hover);border:1px solid var(--border);border-radius:20px;padding:10px 16px;color:var(--text-hi);font-size:14px;line-height:1.45;outline:none;transition:border-color .15s;resize:none;min-height:42px;max-height:140px;overflow-y:auto}#msg-ta:focus{border-color:var(--accent-mid)}#msg-ta::placeholder{color:var(--text-muted)}#msg-ta:disabled{opacity:.35;cursor:not-allowed}.btn-send{width:42px;height:42px;flex-shrink:0;background:var(--accent);border:none;border-radius:50%;color:#fff;display:flex;align-items:center;justify-content:center;transition:all .2s}.btn-send svg{width:16px;height:16px}.btn-send:hover:not(:disabled){background:#6f9bf2;box-shadow:0 0 18px var(--accent-glow)}.btn-send:disabled{background:var(--bg-hover);color:var(--text-dim);cursor:not-allowed}#ctx{display:none;position:fixed;background:var(--bg-panel);border:1px solid var(--border-hi);border-radius:var(--r-md);box-shadow:0 8px 28px #0000008c;z-index:4000;overflow:hidden;min-width:165px}#ctx.open{display:block}.cx{display:flex;align-items:center;gap:9px;padding:10px 14px;font-size:13px;color:var(--text-main);cursor:pointer;transition:background .1s}.cx:hover{background:var(--bg-hover);color:var(--text-hi)}.cx svg{width:13px;height:13px;flex-shrink:0}.cx.red{color:var(--red)}.cx-div{height:1px;background:var(--border)}.modal-back{display:none;position:fixed;inset:0;background:#000000c7;backdrop-filter:blur(6px);z-index:3000;align-items:center;justify-content:center}.modal-back.open{display:flex}.modal{background:var(--bg-panel);border:1px solid var(--border-hi);border-radius:var(--r-xl);width:min(460px,94vw);box-shadow:0 24px 64px #000000a6;overflow:hidden;animation:mIn .2s cubic-bezier(.22,1,.36,1)}@keyframes mIn{0%{opacity:0;transform:scale(.95) translateY(10px)}to{opacity:1;transform:none}}.mh{display:flex;align-items:center;justify-content:space-between;padding:18px 22px;border-bottom:1px solid var(--border)}.mh-title{font-size:15px;font-weight:600;color:var(--text-hi);display:flex;align-items:center;gap:8px}.mh-title svg{width:15px;height:15px;color:var(--accent)}.mb-body{padding:22px;display:flex;flex-direction:column;gap:16px}.fl{font-size:11px;font-weight:600;color:var(--text-muted);text-transform:uppercase;letter-spacing:.07em;margin-bottom:5px;font-family:var(--mono)}.mono-box{background:var(--bg-base);border:1px solid var(--border);border-radius:var(--r-sm);padding:11px 13px;font-family:var(--mono);font-size:11px;color:var(--accent);word-break:break-all;display:flex;align-items:center;justify-content:space-between;gap:10px;cursor:pointer;transition:border-color .15s}.mono-box:hover{border-color:var(--border-hi)}.mono-box span{flex:1}.mono-box svg{width:13px;height:13px;color:var(--text-muted);flex-shrink:0}.mesh-phrase-box{background:#5b8af01a;border:1px solid var(--accent-mid);border-radius:var(--r-sm);padding:14px;text-align:center;font-family:var(--mono);font-size:16px;font-weight:700;color:var(--accent);letter-spacing:.05em;margin-bottom:10px}.warn-note{font-size:11px;color:var(--red);display:flex;gap:6px;align-items:flex-start;margin-top:6px}.warn-note svg{flex-shrink:0;width:13px;height:13px;margin-top:1px}.danger-box{background:var(--red-dim);border:1px solid rgba(240,91,91,.2);border-radius:var(--r-md);padding:13px;cursor:pointer;display:flex;align-items:center;gap:12px;font-size:13px;font-weight:500;color:var(--red);transition:background .15s}.danger-box:hover{background:#f05b5b38}.danger-box svg{flex-shrink:0;width:15px;height:15px}#qr-box{background:#fff;border-radius:var(--r-md);padding:14px;display:inline-flex;align-items:center;justify-content:center;margin:0 auto}.share-key{font-family:var(--mono);font-size:11px;color:var(--accent);text-align:center;word-break:break-all;line-height:1.8;background:var(--bg-base);border:1px solid var(--border);border-radius:var(--r-sm);padding:10px 13px}.sh-btns{display:flex;gap:10px;width:100%}.sh-btns .btn-prim,.sh-btns .btn-ghost{flex:1}#toast{position:fixed;bottom:22px;left:50%;transform:translate(-50%) translateY(70px);background:var(--bg-panel);border:1px solid var(--border-hi);border-radius:var(--r-md);padding:9px 16px;font-size:13px;color:var(--text-hi);display:flex;align-items:center;gap:7px;box-shadow:0 8px 24px #00000073;transition:transform .3s cubic-bezier(.22,1,.36,1);z-index:9999;pointer-events:none;white-space:nowrap}#toast.show{transform:translate(-50%) translateY(0)}#toast svg{width:13px;height:13px;color:var(--green);flex-shrink:0}#mob-overlay{display:none;position:fixed;inset:0;background:#00000080;z-index:40;backdrop-filter:blur(2px)}#mob-overlay.show{display:block}@media(max-width:768px){:root{--sw: 100%}#app{position:relative;overflow:hidden}#sidebar{position:absolute;top:0;left:0;z-index:50;height:100%;transition:transform .25s cubic-bezier(.22,1,.36,1)}#sidebar.hidden{transform:translate(-100%)}#btn-back{display:flex!important}#chat-win{padding:14px}.mb{max-width:88%}}