:root{--bg:#0b0d12;--bg-panel:#12151c;--bg-elevated:#1a1f29;--bg-hover:#222836;--border:#262c38;--text:#e6e9ef;--text-dim:#9aa3b2;--text-faint:#6b7384;--accent:#6366f1;--accent-hover:#7c7ef5;--danger:#ef4444;--success:#10b981;--radius:10px;--shadow:0 8px 30px rgba(0,0,0,0.45)}*{box-sizing:border-box}body,html{margin:0;padding:0;background:var(--bg);color:var(--text);font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica,Arial,sans-serif;font-size:14px;-webkit-font-smoothing:antialiased}#__next,body,body>div,html{height:100%}button,input,textarea{font-family:inherit;font-size:inherit;color:inherit}button{cursor:pointer}a{color:var(--accent)}::-webkit-scrollbar{width:10px;height:10px}::-webkit-scrollbar-thumb{background:#2a3140;border-radius:6px;border:2px solid var(--bg-panel)}::-webkit-scrollbar-thumb:hover{background:#353d4e}.auth-wrap{min-height:100%;display:grid;place-items:center;padding:24px;background:radial-gradient(1000px 600px at 70% -10%,rgba(99,102,241,.18),transparent),var(--bg)}.auth-card{width:100%;max-width:400px;background:var(--bg-panel);border:1px solid var(--border);border-radius:16px;padding:32px;box-shadow:var(--shadow)}.brand{display:flex;align-items:center;gap:10px;font-size:22px;font-weight:700;margin-bottom:4px}.brand .dot{width:12px;height:12px;border-radius:50%;background:var(--accent);box-shadow:0 0 12px var(--accent)}.auth-sub{color:var(--text-dim);margin:0 0 24px}.tabs{display:flex;gap:4px;background:var(--bg-elevated);border-radius:var(--radius);padding:4px;margin-bottom:20px}.tabs button{flex:1 1;background:transparent;border:none;color:var(--text-dim);padding:8px;border-radius:7px;font-weight:600}.tabs button.active{background:var(--bg-hover);color:var(--text)}.field{margin-bottom:14px}.field label{display:block;font-size:12px;color:var(--text-dim);margin-bottom:6px;font-weight:600}.input{width:100%;background:var(--bg-elevated);border:1px solid var(--border);border-radius:var(--radius);padding:11px 13px;color:var(--text);outline:none;transition:border-color .15s}.input:focus{border-color:var(--accent)}.btn{width:100%;background:var(--accent);color:white;border:none;border-radius:var(--radius);padding:12px;font-weight:600;transition:background .15s}.btn:hover{background:var(--accent-hover)}.btn:disabled{opacity:.6;cursor:default}.btn-secondary{background:var(--bg-elevated);border:1px solid var(--border)}.btn-secondary:hover{background:var(--bg-hover)}.error-msg{background:rgba(239,68,68,.12);border:1px solid rgba(239,68,68,.4);color:#fca5a5;padding:10px 12px;border-radius:var(--radius);margin-bottom:14px;font-size:13px}.app{display:grid;grid-template-columns:320px 1fr;height:100%;overflow:hidden}.sidebar{background:var(--bg-panel);border-right:1px solid var(--border);display:flex;flex-direction:column;min-height:0}.sidebar-header{padding:16px;border-bottom:1px solid var(--border);display:flex;align-items:center;justify-content:space-between}.sidebar-actions{display:flex;gap:6px}.icon-btn{background:var(--bg-elevated);border:1px solid var(--border);color:var(--text-dim);width:34px;height:34px;border-radius:9px;display:grid;place-items:center;font-size:16px;transition:all .15s}.icon-btn:hover{background:var(--bg-hover);color:var(--text)}.search-box{padding:12px 12px 6px}.convo-list{flex:1 1;overflow-y:auto;padding:6px;min-height:0}.section-label{font-size:11px;text-transform:uppercase;letter-spacing:.06em;color:var(--text-faint);font-weight:700;padding:12px 10px 6px}.convo-item{display:flex;align-items:center;gap:11px;padding:9px 10px;border-radius:var(--radius);cursor:pointer;transition:background .1s}.convo-item:hover{background:var(--bg-hover)}.convo-item.active{background:var(--bg-elevated)}.avatar{width:40px;height:40px;border-radius:50%;display:grid;place-items:center;color:white;font-weight:700;font-size:14px;flex-shrink:0;position:relative}.avatar.sm{width:30px;height:30px;font-size:12px}.avatar.channel{border-radius:11px}.online-dot{position:absolute;bottom:-1px;right:-1px;width:11px;height:11px;border-radius:50%;background:var(--success);border:2px solid var(--bg-panel)}.convo-meta{flex:1 1;min-width:0}.convo-top{display:flex;justify-content:space-between;align-items:baseline;gap:8px}.convo-title{font-weight:600;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.convo-time{font-size:11px;color:var(--text-faint);flex-shrink:0}.convo-preview{color:var(--text-dim);font-size:13px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.badge{background:var(--accent);color:white;font-size:11px;font-weight:700;min-width:20px;height:20px;border-radius:10px;display:grid;place-items:center;padding:0 6px;flex-shrink:0}.sidebar-footer{border-top:1px solid var(--border);padding:10px 12px;display:flex;align-items:center;gap:10px}.sidebar-footer .name{flex:1 1;min-width:0}.sidebar-footer .name .dn{font-weight:600;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.sidebar-footer .name .un{font-size:12px;color:var(--text-faint)}.chat{display:flex;flex-direction:column;min-width:0;min-height:0;background:var(--bg)}.chat-header{height:64px;border-bottom:1px solid var(--border);display:flex;align-items:center;gap:12px;padding:0 18px;flex-shrink:0}.chat-header .h-title{font-weight:700;font-size:15px}.chat-header .h-sub{font-size:12px;color:var(--text-dim)}.chat-header .spacer{flex:1 1}.empty-state{flex:1 1;display:grid;place-items:center;color:var(--text-faint);text-align:center}.messages{flex:1 1;overflow-y:auto;padding:18px;display:flex;flex-direction:column;gap:2px;min-height:0}.day-divider{text-align:center;margin:16px 0 8px;position:relative;color:var(--text-faint);font-size:12px;font-weight:600}.day-divider span{background:var(--bg);padding:0 12px;position:relative;z-index:1}.day-divider:before{content:"";position:absolute;left:0;right:0;top:50%;height:1px;background:var(--border)}.msg-row{display:flex;gap:12px;padding:3px 8px;border-radius:8px;position:relative}.msg-row:hover{background:var(--bg-panel)}.msg-row.grouped{padding-top:1px;padding-bottom:1px}.msg-gutter{width:40px;flex-shrink:0}.msg-body{flex:1 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9px;font-size:14px}.msg-actions button:hover{background:var(--bg-hover);color:var(--text)}.composer{padding:12px 18px 16px;border-top:1px solid var(--border);flex-shrink:0}.typing-line{height:18px;font-size:12px;color:var(--text-dim);padding:0 4px 4px;font-style:italic}.edit-bar,.reply-bar{display:flex;align-items:center;gap:8px;background:var(--bg-panel);border:1px solid var(--border);border-bottom:none;border-radius:var(--radius) var(--radius) 0 0;padding:8px 12px;font-size:13px;color:var(--text-dim)}.edit-bar .spacer,.reply-bar .spacer{flex:1 1}.composer-box{display:flex;align-items:flex-end;gap:8px;background:var(--bg-panel);border:1px solid var(--border);border-radius:var(--radius);padding:8px 10px}.composer-box.attached{border-radius:0 0 var(--radius) var(--radius)}.composer textarea{flex:1 1;background:transparent;border:none;outline:none;resize:none;max-height:160px;line-height:1.5;padding:6px 2px}.composer 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button:hover{background:var(--bg-hover)}.gif-search{padding:10px;border-bottom:1px solid var(--border)}.gif-grid{display:grid;grid-template-columns:1fr 1fr;grid-gap:6px;gap:6px;padding:8px;overflow-y:auto}.gif-grid img{width:100%;border-radius:8px;cursor:pointer;background:var(--bg)}.gif-tabs{display:flex;gap:4px;padding:8px 10px 0}.gif-tabs button{background:var(--bg-panel);border:1px solid var(--border);color:var(--text-dim);border-radius:7px;padding:5px 12px;font-size:12px;font-weight:600}.gif-tabs button.active{background:var(--accent);border-color:var(--accent);color:white}.modal-overlay{position:fixed;inset:0;background:rgba(0,0,0,.6);display:grid;place-items:center;z-index:100;padding:20px}.modal{width:100%;max-width:460px;max-height:85vh;background:var(--bg-panel);border:1px solid var(--border);border-radius:16px;box-shadow:var(--shadow);display:flex;flex-direction:column;overflow:hidden}.modal-header{padding:18px 20px;border-bottom:1px solid 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.check{margin-left:auto;color:var(--accent);font-weight:700}.invite-row{display:flex;align-items:center;gap:10px;padding:10px;border:1px solid var(--border);border-radius:var(--radius);margin-bottom:8px;font-family:ui-monospace,monospace}.invite-row .code{font-weight:700;letter-spacing:1px;flex:1 1}.invite-row .status{font-size:12px;font-family:var(--font,sans-serif)}.invite-row .status.used{color:var(--text-faint)}.invite-row .status.open{color:var(--success)}.tag{font-size:11px;padding:1px 7px;border-radius:6px;background:var(--bg-elevated);color:var(--text-dim);border:1px solid var(--border)}.lightbox{position:fixed;inset:0;background:rgba(0,0,0,.85);display:grid;place-items:center;z-index:200;cursor:zoom-out}.lightbox img{max-width:92vw;max-height:92vh;border-radius:8px}.spinner{width:18px;height:18px;border:2px solid rgba(255,255,255,.3);border-top-color:white;border-radius:50%;animation:spin .7s linear infinite}@keyframes spin{to{transform:rotate(1turn)}}@media (max-width:720px){.app{grid-template-columns:1fr}.app.has-active .sidebar,.app:not(.has-active) .chat{display:none}}