@import "https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap";
*,:before,:after{box-sizing:border-box;margin:0;padding:0}:root{--bg:#fff;--bg-secondary:#f7f7f8;--surface:#fff;--surface-hover:#f5f5f5;--border:#e5e5e5;--border-light:#f0f0f0;--text:#0d0d0d;--text-secondary:#6b6b6b;--text-tertiary:#999;--accent:#06f;--accent-hover:#0052cc;--accent-light:#0066ff14;--green:#22c55e;--red:#ef4444;--input-bg:#f7f7f8;--code-bg:#f4f4f5;--shadow:0 1px 3px #0000000f;--shadow-lg:0 4px 12px #00000014;--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light}[data-theme=dark]{--bg:#0a0a0a;--bg-secondary:#111;--surface:#0a0a0a;--surface-hover:#1a1a1a;--border:#2a2a2a;--border-light:#1e1e1e;--text:#ececec;--text-secondary:#999;--text-tertiary:#666;--accent:#3b82f6;--accent-hover:#2563eb;--accent-light:#3b82f61f;--green:#22c55e;--red:#ef4444;--input-bg:#141414;--code-bg:#1a1a1a;--shadow:0 1px 3px #0000004d;--shadow-lg:0 4px 12px #0006;--lightningcss-light: ;--lightningcss-dark:initial;color-scheme:dark}html,body,#__next{height:100%}body{background:var(--bg);color:var(--text);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;font-family:Inter,-apple-system,BlinkMacSystemFont,system-ui,sans-serif;transition:background .2s,color .2s}::selection{background:var(--accent-light);color:var(--accent)}::-webkit-scrollbar{width:6px}::-webkit-scrollbar-track{background:0 0}::-webkit-scrollbar-thumb{background:var(--border);border-radius:3px}.page-center{background:var(--bg-secondary);justify-content:center;align-items:center;height:100%;display:flex}.loader{border:2.5px solid var(--border);border-top-color:var(--text-secondary);border-radius:50%;width:24px;height:24px;animation:.6s linear infinite spin}.login-card{background:var(--surface);width:100%;max-width:400px;box-shadow:var(--shadow-lg);text-align:center;border:1px solid var(--border-light);border-radius:16px;padding:48px 40px}.login-title{letter-spacing:-.03em;font-size:28px;font-weight:700}.login-sub{color:var(--text-secondary);margin:6px 0 32px;font-size:15px;line-height:1.5}.login-buttons{flex-direction:column;gap:10px;display:flex}.auth-btn{border-radius:12px;justify-content:center;align-items:center;gap:10px;height:48px;font-size:15px;font-weight:500;text-decoration:none;transition:opacity .15s;display:flex}.auth-btn:hover{opacity:.85}.auth-github{color:#fff;background:#1a1a1a}.auth-google{background:var(--surface);color:var(--text);border:1px solid var(--border)}.auth-apple{color:#fff;background:#000}[data-theme=dark] .auth-github{color:#000;background:#fff}[data-theme=dark] .auth-google{background:var(--surface)}[data-theme=dark] .auth-apple{color:#000;background:#fff}.app-layout{background:var(--bg);height:100%;display:flex}.sidebar{background:var(--bg-secondary);border-right:1px solid var(--border);flex-direction:column;flex-shrink:0;width:260px;height:100%;display:flex}.sidebar-header{justify-content:space-between;align-items:center;height:52px;padding:16px 16px 12px;display:flex}.sidebar-logo{letter-spacing:-.02em;font-size:16px;font-weight:700}.sidebar-close{color:var(--text-secondary);cursor:pointer;background:0 0;border:none;padding:4px;display:none}.sidebar-nav{flex-direction:column;gap:2px;padding:4px 8px;display:flex}.sidebar-item{color:var(--text-secondary);text-align:left;cursor:pointer;background:0 0;border:none;border-radius:8px;align-items:center;gap:10px;width:100%;padding:8px 12px;font-size:14px;font-weight:500;text-decoration:none;transition:all .15s;display:flex}.sidebar-item:hover{background:var(--surface-hover);color:var(--text)}.sidebar-item-active{background:var(--surface);color:var(--text);font-weight:600}.sidebar-footer{border-top:1px solid var(--border-light);margin-top:auto;padding:8px}.sidebar-user{align-items:center;gap:10px;padding:8px 12px;display:flex}.sidebar-user-avatar{border-radius:50%;width:28px;height:28px}.sidebar-user-avatar-placeholder{background:var(--accent-light);width:28px;height:28px;color:var(--accent);border-radius:50%;justify-content:center;align-items:center;font-size:12px;font-weight:600;display:flex}.sidebar-user-info{min-width:0}.sidebar-user-name{text-overflow:ellipsis;white-space:nowrap;font-size:13px;font-weight:600;overflow:hidden}.sidebar-user-email{color:var(--text-tertiary);text-overflow:ellipsis;white-space:nowrap;font-size:11px;overflow:hidden}.sidebar-overlay{display:none}.chat-main{flex-direction:column;flex:1;min-width:0;height:100%;display:flex}.mobile-header{display:none}.chat-layout{background:var(--bg);flex-direction:column;height:100%;display:flex}.topbar{border-bottom:1px solid var(--border);background:var(--surface);flex-shrink:0;justify-content:space-between;align-items:center;height:52px;padding:0 20px;display:flex}.topbar-left{align-items:center;gap:12px;display:flex}.topbar-title{font-size:15px;font-weight:600}.topbar-right{align-items:center;gap:4px;display:flex}.topbar-btn{width:36px;height:36px;color:var(--text-secondary);cursor:pointer;background:0 0;border:none;border-radius:8px;justify-content:center;align-items:center;transition:background .15s,color .15s;display:flex}.topbar-btn:hover{background:var(--surface-hover);color:var(--text)}.topbar-link{width:36px;height:36px;color:var(--text-secondary);border-radius:8px;justify-content:center;align-items:center;text-decoration:none;transition:background .15s,color .15s;display:flex}.topbar-link:hover{background:var(--surface-hover);color:var(--text)}.messages-scroll{-webkit-overflow-scrolling:touch;flex:1;overflow-y:auto}.messages-container{max-width:768px;margin:0 auto;padding:24px 24px 16px}.message{gap:16px;padding:24px 0;animation:.2s ease-out fadeIn;display:flex}.message+.message{border-top:1px solid var(--border-light)}.message-user{flex-direction:row-reverse}.message-avatar{background:var(--accent);color:#fff;border-radius:50%;flex-shrink:0;justify-content:center;align-items:center;width:32px;height:32px;display:flex}.message-content{flex:1;min-width:0}.message-name{margin-bottom:6px;font-size:13px;font-weight:600}.message-text{white-space:pre-wrap;word-break:break-word;font-size:15px;line-height:1.7}.message-user .message-text{text-align:right;color:var(--text-secondary)}.typing-indicator{gap:4px;padding:8px 0;display:flex}.typing-indicator span{background:var(--text-tertiary);border-radius:50%;width:7px;height:7px;animation:1.4s ease-in-out infinite pulse}.typing-indicator span:nth-child(2){animation-delay:.2s}.typing-indicator span:nth-child(3){animation-delay:.4s}.input-area{padding:16px 24px 20px;padding-bottom:calc(20px + env(safe-area-inset-bottom));background:var(--bg);flex-shrink:0}.input-wrapper{border:1px solid var(--border);background:var(--surface);max-width:768px;box-shadow:var(--shadow);border-radius:16px;align-items:flex-end;gap:12px;margin:0 auto;padding:12px 12px 12px 20px;transition:border-color .15s,box-shadow .15s;display:flex}.input-wrapper:focus-within{border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-light)}.input-field{resize:none;min-height:24px;max-height:200px;color:var(--text);background:0 0;border:none;outline:none;flex:1;font-family:inherit;font-size:15px;line-height:1.5}.input-field::placeholder{color:var(--text-tertiary)}.send-btn{background:var(--accent);color:#fff;cursor:pointer;border:none;border-radius:10px;flex-shrink:0;justify-content:center;align-items:center;width:36px;height:36px;transition:background .15s,transform .1s;display:flex}.send-btn:hover:not(:disabled){background:var(--accent-hover)}.send-btn:active:not(:disabled){transform:scale(.93)}.send-btn:disabled{background:var(--border);cursor:default}.input-footer{justify-content:center;align-items:center;gap:8px;max-width:768px;margin:10px auto 0;font-size:12px;display:flex}.footer-link{color:var(--text-tertiary);text-decoration:none;transition:color .15s}.footer-link:hover{color:var(--text-secondary)}.footer-dot{color:var(--border)}.settings-layout{background:var(--bg);min-height:100%}.settings-container{max-width:560px;margin:0 auto;padding:32px 24px 64px}.settings-section{margin-bottom:36px}.settings-label{color:var(--text-tertiary);text-transform:uppercase;letter-spacing:.06em;margin-bottom:12px;font-size:11px;font-weight:600}.settings-card{background:var(--surface);border:1px solid var(--border-light);border-radius:12px;padding:16px}.settings-row{justify-content:space-between;align-items:center;padding:12px 0;display:flex}.settings-row+.settings-row{border-top:1px solid var(--border-light)}.settings-row-label{font-size:14px;font-weight:500}.settings-row-desc{color:var(--text-secondary);margin-top:2px;font-size:13px}.settings-input{background:var(--input-bg);border:1px solid var(--border);width:100%;height:40px;color:var(--text);border-radius:8px;outline:none;padding:0 12px;font-family:Inter,monospace;font-size:14px;transition:border-color .15s}.settings-input:focus{border-color:var(--accent)}.settings-btn{cursor:pointer;border:none;border-radius:8px;height:36px;padding:0 16px;font-family:inherit;font-size:13px;font-weight:600;transition:opacity .15s}.settings-btn:hover{opacity:.85}.settings-btn:disabled{opacity:.4;cursor:default}.settings-btn-primary{background:var(--accent);color:#fff}.settings-btn-danger{background:var(--red);color:#fff}.settings-code{background:var(--code-bg);color:var(--text);border-radius:8px;padding:14px;font-family:SF Mono,Fira Code,monospace;font-size:12px;line-height:1.8;overflow-x:auto}.toggle{cursor:pointer;width:44px;height:26px;position:relative}.toggle input{opacity:0;width:0;height:0}.toggle-track{background:var(--border);border-radius:13px;transition:background .2s;position:absolute;inset:0}.toggle input:checked+.toggle-track{background:var(--accent)}.toggle-thumb{background:#fff;border-radius:50%;width:20px;height:20px;transition:transform .2s;position:absolute;top:3px;left:3px;box-shadow:0 1px 3px #00000026}.toggle input:checked~.toggle-thumb{transform:translate(18px)}@keyframes spin{to{transform:rotate(360deg)}}@keyframes fadeIn{0%{opacity:0;transform:translateY(6px)}to{opacity:1;transform:translateY(0)}}@keyframes pulse{0%,80%,to{transform:scale(0)}40%{transform:scale(1)}}@media (max-width:768px){.sidebar{z-index:50;transition:transform .25s cubic-bezier(.4,0,.2,1);position:fixed;top:0;bottom:0;left:0;transform:translate(-100%)}.sidebar-open{transform:translate(0)}.sidebar-close{display:flex}.sidebar-overlay{z-index:40;background:#0006;display:block;position:fixed;inset:0}.mobile-header{border-bottom:1px solid var(--border);background:var(--surface);justify-content:space-between;align-items:center;height:52px;padding:0 12px;display:flex}.messages-container{padding:16px}.input-area{padding:12px 16px 16px}.message{gap:12px;padding:16px 0}.login-card{margin:16px;padding:32px 24px}.settings-container{padding:24px 16px 48px}}@media (min-width:769px){.mobile-header{display:none}}