:root{--primary-font:"Inter", system-ui, -apple-system, sans-serif;--transition-speed:.3s;--border-radius-sm:8px;--border-radius-md:16px;--border-radius-lg:24px;--sidebar-width:280px;--nav-height:70px}:root,[data-theme=light]{--bg-primary:#f8fafc;--bg-secondary:#fff;--bg-tertiary:#f1f5f9;--text-primary:#1e293b;--text-secondary:#64748b;--accent:#3b82f6;--accent-hover:#2563eb;--border:#e2e8f0;--glass-bg:#ffffffb3;--glass-border:#ffffff80;--shadow:0 4px 6px -1px #0000001a;--msg-user:#3b82f6;--msg-user-text:#fff;--msg-bot:#fff;--msg-bot-text:#1e293b}[data-theme=dark]{--bg-primary:#0f172a;--bg-secondary:#1e293b;--bg-tertiary:#334155;--text-primary:#f8fafc;--text-secondary:#94a3b8;--accent:#8b5cf6;--accent-hover:#7c3aed;--border:#334155;--glass-bg:#0f172ab3;--glass-border:#ffffff1a;--shadow:0 4px 6px -1px #0000004d;--msg-user:#8b5cf6;--msg-user-text:#fff;--msg-bot:#1e293b;--msg-bot-text:#f8fafc}[data-theme=midnight]{--bg-primary:#050b18;--bg-secondary:#10183099;--bg-tertiary:#1f294766;--text-primary:#e2e8f0;--text-secondary:#94a3b8;--accent:#06b6d4;--accent-hover:#0891b2;--border:#ffffff1a;--glass-bg:#0a142866;--glass-border:#ffffff1a;--shadow:0 10px 30px #00000080;--msg-user:#06b6d4;--msg-user-text:#050b18;--msg-bot:#1f294799;--msg-bot-text:#e2e8f0}[data-theme=emerald]{--bg-primary:#06201b;--bg-secondary:#0a312a;--bg-tertiary:#0f4038;--text-primary:#ecfdf5;--text-secondary:#a7f3d0;--accent:#fbbf24;--accent-hover:#f59e0b;--border:#0f4038;--glass-bg:#06201bb3;--glass-border:#fbbf2433;--shadow:0 4px 20px #0006;--msg-user:#fbbf24;--msg-user-text:#06201b;--msg-bot:#0a312a;--msg-bot-text:#ecfdf5}[data-theme=sunset]{--bg-primary:linear-gradient(135deg, #2d1b4e 0%, #1a1a2e 100%);--bg-secondary:#ffffff0d;--bg-tertiary:#ffffff1a;--text-primary:#fff;--text-secondary:#cbd5e1;--accent:#f43f5e;--accent-hover:#fb7185;--border:#ffffff1a;--glass-bg:#0000004d;--glass-border:#ffffff1a;--shadow:0 4px 15px #f43f5e33;--msg-user:linear-gradient(to right, #f43f5e, #fb923c);--msg-user-text:#fff;--msg-bot:#ffffff1a;--msg-bot-text:#fff}*{box-sizing:border-box;font-family:var(--primary-font);-webkit-tap-highlight-color:transparent;margin:0;padding:0}body{background:var(--bg-primary);color:var(--text-primary);transition:background var(--transition-speed), color var(--transition-speed);width:100vw;height:100vh;overflow:hidden}#root{width:100%;height:100%}.glass{background:var(--glass-bg);-webkit-backdrop-filter:blur(12px);border:1px solid var(--glass-border)}button{cursor:pointer;background:0 0;border:none;transition:all .2s}button:active{transform:scale(.95)}@keyframes fadeIn{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}.animate-fade-in{animation:.4s ease-out forwards fadeIn}::-webkit-scrollbar{width:6px}::-webkit-scrollbar-track{background:0 0}::-webkit-scrollbar-thumb{background:var(--bg-tertiary);border-radius:10px}::-webkit-scrollbar-thumb:hover{background:var(--text-secondary)}@media (width<=768px){.sidebar{border-right:none!important;border-top:1px solid var(--border)!important;flex-direction:row!important;justify-content:space-around!important;width:100%!important;height:65px!important;padding:0 10px!important;position:fixed!important;bottom:0!important}.sidebar-header,.sidebar-footer{display:none!important}.sidebar-nav{flex-direction:row!important;align-items:center!important;gap:0!important;width:100%!important;height:100%!important}.sidebar-nav button{flex-direction:column!important;justify-content:center!important;align-items:center!important;gap:4px!important;width:auto!important;height:100%!important;padding:8px!important;font-size:10px!important}.sidebar-nav button span{display:block!important}main{padding-bottom:65px!important}.chat-container{padding:0!important}.messages-list{padding:16px!important}.input-container{border-radius:16px!important;padding:4px 12px!important}}@media (width>=1200px){.chat-container{border-left:1px solid var(--border);border-right:1px solid var(--border)}}.message-wrapper:hover .message-actions{opacity:1!important}.message-bubble:hover{transition:transform .2s;transform:translateY(-2px)}.sidebar-nav a:hover{background:var(--bg-tertiary)!important;color:var(--accent)!important}.history-item:hover{box-shadow:var(--shadow);transform:translate(8px);background:var(--bg-secondary)!important}.theme-bubbles button:hover{transform:scale(1.2)}.glass{box-shadow:0 4px 12px #0000000d}[data-theme=midnight] .glass,[data-theme=dark] .glass{box-shadow:0 4px 12px #0006}