:root{--bg-primary:#0f172a;--bg-secondary:#1e293b;--bg-glass:#1e293bbf;--text-primary:#f8fafc;--text-secondary:#94a3b8;--accent:#38bdf8;--accent-hover:#0ea5e9;--accent-light:#38bdf826;--border-color:#ffffff1a;--lightningcss-light: ;--lightningcss-dark:initial;color-scheme:dark;font-family:Outfit,Inter,system-ui,-apple-system,sans-serif}[data-theme=light]{--bg-primary:#f0f9ff;--bg-secondary:#fff;--bg-glass:#ffffffd9;--text-primary:#0f172a;--text-secondary:#64748b;--accent:#0ea5e9;--accent-hover:#0284c7;--accent-light:#0ea5e926;--border-color:#00000014;--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light}*{box-sizing:border-box;-webkit-tap-highlight-color:transparent;margin:0;padding:0}body{background-color:var(--bg-primary);color:var(--text-primary);background-image:radial-gradient(at 0% 0%, var(--accent-light) 0px, transparent 50%), radial-gradient(at 100% 100%, #0ea5e91a 0px, transparent 50%);justify-content:center;align-items:center;min-height:100dvh;transition:background-color .3s,color .3s;display:flex;overflow:hidden}#root{justify-content:center;align-items:center;width:100vw;height:100dvh;display:flex}.app-container{background:var(--bg-glass);-webkit-backdrop-filter:blur(20px);border:1px solid var(--border-color);width:100%;height:100dvh;display:flex;position:relative;overflow:hidden}@media (width>=768px){.app-container{border-radius:24px;max-width:1200px;height:90dvh;margin:20px;box-shadow:0 25px 50px -12px #00000040}}.sidebar{background:var(--bg-secondary);border-right:1px solid var(--border-color);z-index:10;flex-direction:column;width:100%;transition:transform .3s;display:flex}@media (width>=768px){.sidebar{flex-shrink:0;width:340px}}.main-area{background:0 0;background:var(--bg-primary);z-index:20;flex-direction:column;flex:1;transition:transform .3s;display:flex;position:absolute;inset:0;transform:translate(100%)}@media (width>=768px){.main-area{z-index:1;position:static;transform:none}}.mobile-show-main .sidebar{transform:translate(-30%)}.mobile-show-main .main-area{transform:translate(0)}@media (width>=768px){.mobile-show-main .sidebar{transform:none}}.ripple{transition:transform .15s,background-color .2s,filter .2s}.ripple:active{filter:brightness(.9);transform:scale(.96)!important}.sidebar-header{border-bottom:1px solid var(--border-color);justify-content:space-between;align-items:center;gap:12px;padding:16px 20px;display:flex}.chat-list{flex:1;overflow-y:auto}.chat-item{cursor:pointer;border-bottom:1px solid var(--border-color);align-items:center;gap:14px;padding:16px 20px;transition:background .2s;display:flex}.chat-item:hover{background:var(--accent-light)}.topbar{border-bottom:1px solid var(--border-color);background:var(--bg-glass);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);justify-content:space-between;align-items:center;min-height:64px;padding:12px 20px;display:flex}.messages-wrapper{flex-direction:column;flex:1;gap:16px;padding:20px;display:flex;overflow-y:auto}::-webkit-scrollbar{width:5px}::-webkit-scrollbar-track{background:0 0}::-webkit-scrollbar-thumb{background:#9696964d;border-radius:4px}.bubble{word-break:break-word;border-radius:18px;max-width:85%;padding:12px 16px;font-size:.95rem;line-height:1.4;position:relative}@media (width>=768px){.bubble{max-width:70%}}.bubble.mine{background:linear-gradient(135deg, var(--accent) 0%, #0ea5e9 100%);color:#fff;border-bottom-right-radius:4px;align-self:flex-end}.bubble.other{background:var(--bg-secondary);color:var(--text-primary);border:1px solid var(--border-color);border-bottom-left-radius:4px;align-self:flex-start}.attachment-img{cursor:pointer;border-radius:12px;max-width:100%;margin-top:8px}.attachment-video{border-radius:12px;max-width:100%;margin-top:8px}.input-area{border-top:1px solid var(--border-color);background:var(--bg-glass);align-items:flex-end;gap:10px;padding:12px 16px;display:flex}@media (width>=768px){.input-area{gap:12px;padding:16px 24px}}.message-input{background:var(--bg-secondary);border:1px solid var(--border-color);color:var(--text-primary);resize:none;border-radius:20px;outline:none;flex:1;min-height:44px;max-height:120px;padding:12px 16px;font-family:inherit}.message-input:focus{border-color:var(--accent)}.avatar{object-fit:cover;background:var(--bg-secondary);border:2px solid var(--border-color);border-radius:50%;flex-shrink:0;width:48px;height:48px}.avatar-sm{width:40px;height:40px}.avatar-lg{width:96px;height:96px}.btn{cursor:pointer;border:none;border-radius:14px;justify-content:center;align-items:center;gap:8px;padding:12px 24px;font-weight:600;transition:all .2s;display:inline-flex}.btn-primary{background:var(--accent);color:#fff}.btn-primary:hover{box-shadow:0 4px 12px var(--accent-light);transform:translateY(-1px)}.btn-icon{color:var(--text-secondary);cursor:pointer;background:0 0;border:none;border-radius:50%;justify-content:center;align-items:center;padding:10px;display:flex}.btn-icon:hover{background:var(--bg-secondary);color:var(--text-primary)}.input-field{background:var(--bg-secondary);border:1px solid var(--border-color);width:100%;color:var(--text-primary);border-radius:14px;outline:none;margin-bottom:16px;padding:14px 16px}.input-field:focus{border-color:var(--accent)}.center-card{background:var(--bg-glass);border:1px solid var(--border-color);text-align:center;border-radius:24px;width:100%;max-width:420px;margin:auto;padding:32px 24px}@media (width>=768px){.center-card{padding:40px}}.modal-overlay{-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);z-index:100;background:#0009;justify-content:center;align-items:center;display:flex;position:fixed;inset:0}.modal-content{background:var(--bg-primary);border:1px solid var(--border-color);border-radius:20px;width:90%;max-width:400px;padding:24px;box-shadow:0 20px 40px #0000004d}