:root{--bg: #05070d;--bg-elevated: #0c1120;--surface: #0f1526;--surface-2: #131b30;--surface-3: #1a2440;--border: #212c46;--border-soft: #182238;--text: #eef2fb;--text-dim: #93a0bd;--text-faint: #5f6d8a;--accent: #7c9bff;--accent-2: #a78bfa;--accent-strong: #4f6fe0;--danger: #ff6b81;--success: #4fd68a;--grad-accent: linear-gradient(135deg, #7c9bff 0%, #a78bfa 100%);--grad-accent-soft: linear-gradient(135deg, rgba(124,155,255,.16), rgba(167,139,250,.16));--radius-xs: 8px;--radius-sm: 12px;--radius-md: 18px;--radius-lg: 26px;--radius-pill: 999px;--spring: cubic-bezier(.34,1.56,.64,1);--ease-out: cubic-bezier(.22,1,.36,1);--ease-soft: cubic-bezier(.4,0,.2,1);--shadow-sm: 0 2px 10px rgba(0,0,0,.25);--shadow-md: 0 12px 34px rgba(0,0,0,.38);--shadow-lg: 0 24px 70px rgba(0,0,0,.5);color-scheme:dark}*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}html,body,#root{margin:0;width:100%;height:100%}body{font-family:Inter,ui-sans-serif,system-ui,-apple-system,Segoe UI,Roboto,sans-serif;background:var(--bg);color:var(--text);-webkit-font-smoothing:antialiased;overscroll-behavior-y:none}button,input{font:inherit;color:inherit}button{cursor:pointer;-webkit-user-select:none;user-select:none;transition:transform .18s var(--spring),background-color .2s var(--ease-soft),color .2s var(--ease-soft),opacity .2s var(--ease-soft),box-shadow .2s var(--ease-soft)}button:active{transform:scale(.94)}button:disabled{opacity:.45;cursor:default;transform:none!important}img{-webkit-user-drag:none}::selection{background:#7c9bff59}*::-webkit-scrollbar{width:6px;height:6px}*::-webkit-scrollbar-thumb{background:#22304f;border-radius:999px}*::-webkit-scrollbar-track{background:transparent}@keyframes spin{to{transform:rotate(360deg)}}@keyframes drift{0%{transform:translateZ(0) scale(1)}50%{transform:translate3d(3%,-4%,0) scale(1.08)}to{transform:translateZ(0) scale(1)}}@keyframes fadeSlideUp{0%{opacity:0;transform:translateY(22px) scale(.97)}to{opacity:1;transform:translateY(0) scale(1)}}@keyframes pulseGlow{0%,to{box-shadow:0 0 #7c9bff73}50%{box-shadow:0 0 0 14px #7c9bff00}}@keyframes bubbleInOwn{0%{opacity:0;transform:translateY(10px) scale(.9)}to{opacity:1;transform:translateY(0) scale(1)}}@keyframes bubbleInOther{0%{opacity:0;transform:translateY(10px) scale(.9)}to{opacity:1;transform:translateY(0) scale(1)}}@keyframes popIn{0%{opacity:0;transform:scale(.4)}70%{transform:scale(1.15)}to{opacity:1;transform:scale(1)}}@keyframes slideDown{0%{opacity:0;transform:translate(-50%,-14px)}to{opacity:1;transform:translate(-50%)}}@keyframes scaleIn{0%{opacity:0;transform:scale(.92) translateY(10px)}to{opacity:1;transform:scale(1) translateY(0)}}@keyframes listItemIn{0%{opacity:0;transform:translate(-10px)}to{opacity:1;transform:translate(0)}}@keyframes dotPulse{0%,to{opacity:1;transform:scale(1)}50%{opacity:.55;transform:scale(.85)}}.ambient-bg{position:fixed;top:0;right:0;bottom:0;left:0;z-index:0;overflow:hidden;pointer-events:none}.ambient-blob{position:absolute;border-radius:50%;filter:blur(70px);opacity:.35;animation:drift 16s ease-in-out infinite;will-change:transform}.ambient-blob--a{width:60vw;height:60vw;max-width:480px;max-height:480px;top:-12%;left:-10%;background:radial-gradient(circle,#4f6fe0 0%,transparent 70%)}.ambient-blob--b{width:55vw;height:55vw;max-width:440px;max-height:440px;bottom:-14%;right:-12%;background:radial-gradient(circle,#a78bfa 0%,transparent 70%);animation-delay:-8s}.screen-center{min-height:100dvh;min-height:100svh;display:grid;place-items:center;padding:24px;position:relative;z-index:1}.loading-stack{display:flex;flex-direction:column;align-items:center;gap:18px;animation:fadeSlideUp .5s var(--ease-out)}.loading-stack span{color:var(--text-dim);font-size:13px;letter-spacing:.01em}.auth-screen{min-height:100dvh;min-height:100svh;display:grid;place-items:center;padding:24px;position:relative;z-index:1}.auth-card{width:min(420px,100%);padding:36px 30px 30px;background:linear-gradient(180deg,var(--surface) 0%,var(--bg-elevated) 100%);border:1px solid var(--border-soft);border-radius:var(--radius-lg);text-align:center;box-shadow:var(--shadow-lg);-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);animation:fadeSlideUp .55s var(--ease-out)}.brand-mark{width:60px;height:60px;margin:0 auto;display:grid;place-items:center;border-radius:20px;background:var(--grad-accent);color:#0a0f1c;box-shadow:var(--shadow-md);animation:pulseGlow 2.4s ease-in-out infinite}.auth-card h1{font-size:21px;font-weight:700;margin:20px 0 8px;letter-spacing:-.01em}.auth-card p{color:var(--text-dim);line-height:1.55;font-size:14px;margin:0;min-height:21px}.auth-card small{display:block;margin-top:20px;color:var(--text-faint);font-size:11px;line-height:1.6}.handoff-loader{display:grid;place-items:center;margin:22px 0 4px}.loader{width:34px;height:34px;border-radius:50%;border:3px solid var(--border);border-top-color:var(--accent);animation:spin .75s linear infinite}.primary-btn{width:100%;border:0;border-radius:var(--radius-sm);padding:13px;margin-top:22px;background:var(--grad-accent);color:#0a0f1c;font-weight:700;font-size:14px;display:flex;justify-content:center;align-items:center;gap:8px;box-shadow:var(--shadow-sm)}.primary-btn:hover{filter:brightness(1.08)}.chat-app{height:100dvh;height:var(--app-vh, 100dvh);display:flex;flex-direction:column;overflow:hidden;position:relative;z-index:1}.tab-bar{flex:none;position:relative;z-index:2;height:56px;padding:8px 10px 6px;background:#0a0f1bb8;-webkit-backdrop-filter:blur(18px) saturate(140%);backdrop-filter:blur(18px) saturate(140%);border-bottom:1px solid var(--border-soft)}.tab-track{position:relative;height:100%;display:grid;grid-template-columns:1fr 1fr}.tab-pill{position:absolute;top:0;left:0;width:50%;height:100%;background:var(--surface-3);border-radius:var(--radius-sm);box-shadow:0 4px 16px #4f6fe040,inset 0 0 0 1px #7c9bff2e;transition:transform .42s var(--spring);will-change:transform}.tab-pill.is-private{transform:translate(100%)}.tab-btn{position:relative;z-index:1;border:0;background:none;color:var(--text-faint);border-radius:var(--radius-sm);display:flex;align-items:center;justify-content:center;gap:8px;font-weight:700;font-size:13.5px;padding:0;transition:color .25s var(--ease-soft),transform .18s var(--spring)}.tab-btn.active{color:var(--text)}.tab-btn svg{flex:none}.error-toast{position:absolute;z-index:30;top:64px;left:50%;width:min(560px,calc(100% - 24px));display:flex;align-items:center;justify-content:space-between;gap:10px;background:#3b1720eb;border:1px solid #71303d;color:#ffc3cd;padding:11px 12px 11px 15px;border-radius:var(--radius-sm);font-size:12.5px;line-height:1.4;box-shadow:var(--shadow-md);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);animation:slideDown .35s var(--ease-out)}.error-toast button{border:0;background:none;color:inherit;flex:none;display:grid;place-items:center}.chat-body{flex:1;min-height:0;display:flex;position:relative}.conversation-list{width:320px;flex:none;background:#090d1799;border-right:1px solid var(--border-soft);overflow-y:auto;display:flex;flex-direction:column}.conversation-list-header{height:60px;flex:none;padding:0 14px;display:flex;align-items:center;gap:10px;border-bottom:1px solid var(--border-soft)}.conversation-list-header .titles{flex:1;min-width:0}.conversation-list-header b{display:block;font-size:14px}.conversation-list-header small{display:block;font-size:10.5px;color:var(--text-faint);margin-top:2px}.icon-btn{width:38px;height:38px;flex:none;border:0;border-radius:var(--radius-xs);background:var(--surface-2);color:var(--text-dim);display:grid;place-items:center}.icon-btn:hover{background:var(--surface-3);color:var(--text)}.empty-conversations{padding:34px 20px;text-align:center;color:var(--text-faint);font-size:13px}.empty-conversations button{display:inline-flex;align-items:center;gap:6px;margin-top:14px;border:0;border-radius:var(--radius-xs);background:var(--surface-2);color:var(--accent);padding:9px 14px;font-size:12.5px;font-weight:600}.conversation-item{width:100%;border:0;background:none;color:inherit;text-align:left;padding:11px 14px;display:flex;align-items:center;gap:10px;border-bottom:1px solid var(--border-soft);animation:listItemIn .32s var(--ease-out) backwards}.conversation-item:hover{background:#ffffff05}.conversation-item.active{background:var(--surface-2)}.avatar{width:42px;height:42px;border-radius:50%;flex:none;display:grid;place-items:center;background:var(--grad-accent-soft);color:var(--accent);font-weight:800;font-size:15px;object-fit:cover;overflow:hidden}.avatar img{width:100%;height:100%;border-radius:50%;object-fit:cover}.avatar-wrap{position:relative;flex:none}.avatar-sm{width:30px;height:30px;font-size:12px}.avatar-online-dot{position:absolute;right:-1px;bottom:-1px;width:11px;height:11px;border-radius:50%;background:var(--success);border:2px solid var(--bg-elevated);animation:dotPulse 1.8s ease-in-out infinite}.conversation-main{flex:1;min-width:0}.conversation-name{font-size:13.5px;font-weight:650;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.conversation-preview{font-size:11.5px;color:var(--text-faint);margin-top:3px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.conversation-side{display:flex;flex-direction:column;align-items:flex-end;gap:6px;flex:none}.conversation-time{font-size:9.5px;color:var(--text-faint)}.unread-badge{min-width:19px;height:19px;padding:0 5px;border-radius:999px;background:var(--grad-accent);color:#0a0f1c;font-size:10px;font-weight:800;display:grid;place-items:center;animation:popIn .3s var(--spring)}.chat-panel{flex:1;min-width:0;display:flex;flex-direction:column;background:transparent}.chat-panel-header{height:60px;flex:none;padding:0 14px;display:flex;align-items:center;gap:11px;border-bottom:1px solid var(--border-soft);background:#090d1780;-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px)}.back-btn{display:none;border:0;background:none;color:var(--text-dim);width:34px;height:34px;border-radius:var(--radius-xs);place-items:center}.chat-panel-title b{display:block;font-size:13.5px}.chat-panel-title small{display:flex;align-items:center;gap:5px;font-size:10.5px;color:var(--text-faint);margin-top:2px}.status-dot{width:6px;height:6px;border-radius:50%;background:var(--text-faint);flex:none}.status-dot.online{background:var(--success);animation:dotPulse 1.8s ease-in-out infinite}.message-list{flex:1;min-height:0;overflow-y:auto;padding:18px clamp(12px,4vw,54px) 10px;scroll-behavior:smooth}.empty-state{height:100%;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;color:var(--text-faint);animation:fadeSlideUp .4s var(--ease-out)}.empty-state-icon{width:58px;height:58px;border-radius:20px;background:var(--surface-2);color:var(--accent);display:grid;place-items:center;margin-bottom:14px}.empty-state h2{font-size:17px;color:var(--text);margin:0 0 5px;font-weight:700}.empty-state p{margin:0;font-size:13px;max-width:260px}.day-divider{text-align:center;margin:12px 0 18px}.day-divider span{font-size:9.5px;color:var(--text-faint);background:var(--surface);border:1px solid var(--border-soft);padding:5px 10px;border-radius:999px}.message-row{display:flex;align-items:flex-end;gap:8px;margin:6px 0}.message-row.own{justify-content:flex-end}.message-wrap{position:relative;max-width:min(680px,82%);display:flex;flex-direction:column}.message-row.own .message-wrap{align-items:flex-end}.sender-name{font-size:9.5px;color:var(--text-faint);margin:0 0 4px 10px;font-weight:600}.message-bubble{border:0;text-align:left;cursor:pointer;background:var(--surface-2);color:var(--text);border-radius:17px 17px 17px 4px;padding:10px 12px 6px;line-height:1.48;font-size:14px;word-break:break-word;box-shadow:var(--shadow-sm);animation:bubbleInOther .32s var(--ease-out) backwards}.message-row.own .message-bubble{background:linear-gradient(135deg,#24345c,#202c4d);border-radius:17px 17px 4px;animation-name:bubbleInOwn;box-shadow:0 4px 18px #4f6fe02e}.message-bubble.deleted{color:var(--text-faint);font-style:italic}.message-bubble:active{transform:scale(.985)}.reply-quote{display:grid;gap:1px;border-left:2px solid var(--accent);background:#00000038;border-radius:8px;padding:6px 8px;margin-bottom:7px;font-size:10.5px}.reply-quote b{color:var(--accent);font-weight:700}.reply-quote span{color:var(--text-dim);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.message-meta{display:flex;justify-content:flex-end;align-items:center;gap:3px;color:var(--text-faint);font-size:9.5px;margin-top:3px}.message-meta .seen{color:var(--accent)}.context-menu{position:absolute;z-index:8;right:0;bottom:calc(100% + 6px);min-width:132px;padding:5px;background:var(--surface-3);border:1px solid var(--border);border-radius:13px;box-shadow:var(--shadow-lg);animation:scaleIn .18s var(--spring);transform-origin:bottom right}.message-row:not(.own) .context-menu{right:auto;left:0;transform-origin:bottom left}.context-menu button{width:100%;border:0;background:none;color:var(--text-dim);padding:9px 10px;display:flex;align-items:center;gap:8px;font-size:12px;text-align:left;border-radius:8px}.context-menu button:hover{background:var(--surface);color:var(--text)}.context-menu button.danger:hover{background:#ff6b811f;color:var(--danger)}.composer{flex:none;border-top:1px solid var(--border-soft);background:#090d17b8;-webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px);padding:10px 14px max(10px,env(safe-area-inset-bottom))}.reply-preview{max-width:1000px;margin:0 auto 8px;display:flex;align-items:center;gap:8px;background:var(--surface);border-left:3px solid var(--accent);border-radius:10px;padding:8px 10px;color:var(--text-dim);font-size:11px;animation:fadeSlideUp .22s var(--ease-out)}.reply-preview .body{flex:1;min-width:0;display:grid}.reply-preview b{color:var(--accent);font-size:11px}.reply-preview span{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.reply-preview button{border:0;background:none;color:var(--text-dim);flex:none;display:grid;place-items:center}.composer-row{display:flex;align-items:center;gap:8px;max-width:1000px;margin:auto}.composer-input{flex:1;min-width:0;border:1px solid var(--border);background:var(--surface-2);color:var(--text);border-radius:22px;padding:12px 16px;outline:none;font-size:14px;transition:border-color .2s var(--ease-soft),box-shadow .2s var(--ease-soft)}.composer-input:focus{border-color:var(--accent-strong);box-shadow:0 0 0 3px #7c9bff24}.composer-input::placeholder{color:var(--text-faint)}.send-btn{width:44px;height:44px;flex:none;border:0;border-radius:50%;background:var(--surface-2);color:var(--text-faint);display:grid;place-items:center}.send-btn.ready{background:var(--grad-accent);color:#0a0f1c;box-shadow:0 6px 20px #4f6fe059}.send-btn.ready:active{transform:scale(.88) rotate(-8deg)}.send-btn .mini-loader{width:16px;height:16px;border-radius:50%;border:2px solid rgba(10,15,28,.35);border-top-color:currentColor;animation:spin .6s linear infinite}.modal-overlay{position:fixed;top:0;right:0;bottom:0;left:0;z-index:50;background:#04060c9e;-webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px);display:grid;place-items:center;padding:18px;animation:fadeSlideUp .18s var(--ease-out)}.modal-card{width:min(480px,100%);max-height:82dvh;overflow:hidden;display:flex;flex-direction:column;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-lg);box-shadow:var(--shadow-lg);animation:scaleIn .28s var(--spring)}.modal-header{display:flex;align-items:center;padding:16px 16px 14px;border-bottom:1px solid var(--border-soft);flex:none}.modal-header .titles{flex:1}.modal-header b{display:block;font-size:15px}.modal-header small{display:block;color:var(--text-faint);font-size:10.5px;margin-top:3px}.search-box{margin:12px 16px;flex:none;display:flex;align-items:center;gap:8px;background:var(--bg-elevated);border:1px solid var(--border);border-radius:var(--radius-sm);padding:0 12px;color:var(--text-faint)}.search-box input{flex:1;border:0;outline:0;background:none;color:var(--text);padding:11px 0;font-size:13.5px}.person-list{overflow-y:auto;padding:0 8px 12px}.person-row{width:100%;border:0;background:none;color:var(--text);padding:10px 8px;display:flex;align-items:center;gap:10px;text-align:left;border-radius:var(--radius-sm);animation:listItemIn .28s var(--ease-out) backwards}.person-row:hover{background:var(--surface-2)}.person-row .body{flex:1;min-width:0}.person-row b{display:block;font-size:13px}.person-row small{display:block;font-size:10px;color:var(--text-faint);margin-top:3px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.person-row .go{color:var(--text-faint);flex:none}.empty-search{text-align:center;color:var(--text-faint);font-size:12px;padding:30px 20px}@media(max-width:760px){.tab-bar{height:52px}.conversation-list{width:100%;border-right:0}.conversation-list.hide-mobile{display:none}.back-btn{display:grid}.message-list{padding:14px 12px 8px}.message-wrap{max-width:88%}.composer{padding-left:10px;padding-right:10px}.ambient-blob{opacity:.22}}