:root{--spacing-xs:4px;--spacing-sm:8px;--spacing-md:12px;--spacing-lg:16px;--spacing-xl:24px;--spacing-2xl:32px;--spacing-3xl:48px;--font-sans:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif,"Apple Color Emoji","Segoe UI Emoji";--font-mono:"SF Mono",Monaco,"Cascadia Code","Roboto Mono",Consolas,"Courier New",monospace;--text-xs:11px;--text-sm:13px;--text-base:15px;--text-lg:17px;--text-xl:20px;--text-2xl:24px;--font-normal:400;--font-medium:500;--font-semibold:600;--font-bold:700;--leading-tight:1.25;--leading-normal:1.5;--leading-relaxed:1.625;--color-bg-base:#0d0d0d;--color-bg-surface:#1a1a1a;--color-bg-surface-2:#262626;--color-bg-hover:#2d2d2d;--color-bg-active:#333;--color-text-primary:#ececec;--color-text-secondary:#a1a1a1;--color-text-tertiary:#737373;--color-text-inverse:#0d0d0d;--color-accent-primary:#10a37f;--color-accent-primary-hover:#0e8b6f;--color-accent-secondary:#6e59d9;--color-accent-secondary-hover:#5e4ac9;--color-success:#10a37f;--color-warning:#f59e0b;--color-error:#ef4444;--color-info:#3b82f6;--color-border-subtle:hsla(0,0%,100%,.06);--color-border-default:hsla(0,0%,100%,.1);--color-border-strong:hsla(0,0%,100%,.2);--shadow-sm:0 1px 2px rgba(0,0,0,.3);--shadow-md:0 4px 6px rgba(0,0,0,.4);--shadow-lg:0 10px 15px rgba(0,0,0,.5);--shadow-xl:0 20px 25px rgba(0,0,0,.6);--radius-sm:6px;--radius-md:8px;--radius-lg:12px;--radius-xl:18px;--radius-full:9999px;--duration-fast:150ms;--duration-base:250ms;--duration-slow:350ms;--ease-in:cubic-bezier(0.4,0,1,1);--ease-out:cubic-bezier(0,0,0.2,1);--ease-in-out:cubic-bezier(0.4,0,0.2,1);--ease-spring:cubic-bezier(0.34,1.56,0.64,1);--panel:var(--color-bg-surface);--panel-2:var(--color-bg-surface-2);--text:var(--color-text-primary);--muted:var(--color-text-secondary);--accent:var(--color-accent-primary);--accent-2:var(--color-accent-primary-hover);--danger:var(--color-error);--border:var(--color-border-subtle);--code-bg:var(--color-bg-surface-2);--btn-bg:var(--color-accent-primary);--btn-bg-2:var(--color-accent-primary-hover);--radius:var(--radius-lg);--shadow-lg:var(--shadow-lg)}*{box-sizing:border-box}#__next,body,html{height:100%;margin:0;padding:0}body{font-family:var(--font-sans);font-size:var(--text-base);line-height:var(--leading-normal);color:var(--color-text-primary);background:var(--color-bg-base);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}.skip-link{position:absolute;left:-999px;top:auto;width:1px;height:1px;overflow:hidden}.skip-link:active,.skip-link:focus{left:8px;top:8px;width:auto;height:auto;padding:8px 12px;background:var(--color-accent-primary);color:var(--color-text-inverse);z-index:1000;border-radius:6px;box-shadow:var(--shadow-sm)}.page{min-height:100%;align-items:stretch;justify-content:center}.chat-root,.page{display:flex;background:var(--color-bg-base)}.chat-root{width:100%;max-width:1400px;height:100vh;flex-direction:column}.chat-header{height:64px;padding:0 var(--spacing-xl);background:var(--color-bg-surface);border-bottom:1px solid var(--color-border-subtle);-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);position:-webkit-sticky;position:sticky;top:0;z-index:10}.chat-header h1{margin:0;font-size:var(--text-lg);font-weight:var(--font-semibold);color:var(--color-text-primary);letter-spacing:-.02em}.endpoint{display:flex;align-items:center;gap:var(--spacing-sm);color:var(--color-text-tertiary);font-size:var(--text-xs);white-space:nowrap}.endpoint code{background:var(--code-bg);color:var(--color-text-secondary);border:1px solid var(--color-border-subtle);border-radius:var(--radius-sm);padding:2px 6px;font-family:var(--font-mono);font-size:var(--text-xs)}.linklike{background:transparent;border:none;color:var(--color-accent-primary);cursor:pointer;font-size:var(--text-xs);text-decoration:underline;padding:2px 4px;border-radius:var(--radius-sm);transition:color var(--duration-fast) var(--ease-out)}.linklike:hover{color:var(--color-accent-primary-hover)}.chat-main{padding:16px;display:grid;grid-template-rows:auto 1fr;grid-gap:16px;gap:16px}.chat-form{background:var(--panel-2);border:1px solid var(--border);border-radius:10px;padding:12px}.chat-input{width:100%;resize:vertical;min-height:80px;max-height:240px;border-radius:8px;border:1px solid var(--color-border-default);background:var(--color-bg-surface-2);color:var(--color-text-primary);padding:10px 12px;outline:none}.chat-input:focus{border-color:var(--accent-2);box-shadow:0 0 0 2px rgba(14,165,233,.25)}.row{display:flex;gap:10px;margin-top:10px}.conv-input{flex:1 1;border-radius:8px;border:1px solid var(--color-border-default);background:var(--color-bg-surface-2);color:var(--color-text-primary);padding:8px 10px;outline:none}.conv-input:focus{border-color:var(--accent-2);box-shadow:0 0 0 2px rgba(14,165,233,.15)}.send-btn{width:36px;height:36px;background:var(--color-accent-primary);border:none;border-radius:var(--radius-md);color:var(--color-text-inverse);cursor:pointer;display:inline-flex;align-items:center;justify-content:center;font-weight:var(--font-bold);transition:transform var(--duration-fast) var(--ease-out),box-shadow var(--duration-fast) var(--ease-out),background var(--duration-fast) var(--ease-out);box-shadow:var(--shadow-sm)}.send-btn:hover:not(:disabled){background:var(--color-accent-primary-hover);transform:translateY(-1px);box-shadow:var(--shadow-md)}.send-btn:active:not(:disabled){transform:scale(.95)}.send-btn:disabled{opacity:.4;cursor:not-allowed}.send-btn:focus-visible{outline:2px solid var(--color-accent-primary);outline-offset:2px}.chat-panel{background:var(--panel);border:1px solid var(--border);border-radius:10px;padding:14px;min-height:160px;display:flex;align-items:stretch}.placeholder{color:var(--muted);margin:auto}.error{color:#fecaca;background:rgba(239,68,68,.08);border:1px solid rgba(239,68,68,.35);padding:10px 12px;border-radius:8px;width:100%}.assistant{display:grid;width:100%;grid-gap:8px;gap:8px}.assistant-label{font-size:12px;color:var(--muted)}.assistant-reply{white-space:pre-wrap;line-height:1.6;background:linear-gradient(180deg,rgba(6,24,32,.6),rgba(4,12,20,.55));border:1px solid var(--border);border-radius:8px;padding:12px 14px;box-shadow:inset 0 -1px 0 hsla(0,0%,100%,.01);transition:background .18s ease,transform .15s ease}.meta{display:flex;align-items:center;gap:8px;color:var(--muted);font-size:12px}.meta-code{background:var(--code-bg);color:var(--text);border:1px solid var(--border);border-radius:6px;padding:2px 6px}.chat-footer{border-top:1px solid var(--color-border-subtle);background:var(--color-bg-surface);padding:var(--spacing-md) var(--spacing-xl);color:var(--color-text-tertiary);font-size:var(--text-xs);text-align:center}.chat-layout{display:grid;grid-template-columns:260px 1fr;flex:1 1;overflow:hidden}.sidebar{background:var(--color-bg-surface);border-right:1px solid var(--color-border-subtle);display:flex;flex-direction:column;overflow:hidden}.sidebar-header{padding:var(--spacing-md);border-bottom:1px solid var(--color-border-subtle)}.new-chat-btn{width:100%;height:44px;background:var(--color-accent-primary);border:none;color:var(--color-text-inverse);padding:0 var(--spacing-lg);border-radius:var(--radius-md);cursor:pointer;font-weight:var(--font-semibold);font-size:var(--text-sm);display:flex;align-items:center;justify-content:center;gap:var(--spacing-sm);transition:transform var(--duration-fast) var(--ease-out),box-shadow var(--duration-fast) var(--ease-out),background var(--duration-fast) var(--ease-out);box-shadow:var(--shadow-sm)}.new-chat-btn:hover{background:var(--color-accent-primary-hover);transform:translateY(-1px);box-shadow:var(--shadow-md)}.new-chat-icon{font-size:18px;font-weight:700}.conversations-list{flex:1 1;overflow-y:auto;overflow-x:hidden;padding:var(--spacing-sm) 0}.conversations-empty,.conversations-loading{padding:24px 16px;text-align:center;color:var(--muted);font-size:14px}.conversation-item{padding:var(--spacing-md) var(--spacing-lg);margin:0 var(--spacing-sm);cursor:pointer;border-radius:var(--radius-md);transition:background var(--duration-fast) var(--ease-out);position:relative}.conversation-item:hover{background:var(--color-bg-hover)}.conversation-item.selected{background:var(--color-bg-active)}.conversation-item.selected:before{content:"";position:absolute;left:0;top:var(--spacing-sm);bottom:var(--spacing-sm);width:3px;background:var(--color-accent-primary);border-radius:0 var(--radius-sm) var(--radius-sm) 0}.conversation-item:focus-visible{outline:2px solid var(--color-accent-primary);outline-offset:-2px;border-radius:var(--radius-md)}.conversation-title{font-size:14px;font-weight:500;margin-bottom:4px;color:var(--color-text-primary);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.conversation-date{font-size:12px;color:var(--muted)}.main-panel{display:flex;flex-direction:column;overflow:hidden}.error-banner{background:rgba(239,68,68,.08);border:1px solid rgba(239,68,68,.35);border-left:3px solid var(--danger);padding:12px 16px;margin:12px 16px 0;border-radius:8px;color:#fecaca;display:flex;justify-content:space-between;align-items:center;gap:12px}.error-dismiss{background:transparent;border:none;color:#fecaca;font-size:20px;cursor:pointer;padding:0 4px;line-height:1}.error-dismiss:hover{color:#fff}.thread{flex:1 1;overflow-y:auto;overflow-x:hidden;padding:var(--spacing-xl);display:flex;flex-direction:column;gap:var(--spacing-lg);max-width:800px;margin:0 auto;width:100%}.thread-empty,.thread-loading{margin:auto;padding:24px;text-align:center;color:var(--muted)}.message-bubble{padding:var(--spacing-md) var(--spacing-lg);border-radius:var(--radius-xl);max-width:70%;display:flex;flex-direction:column;gap:var(--spacing-xs);animation:messageIn var(--duration-base) var(--ease-out);position:relative}@keyframes messageIn{0%{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}.message-bubble.user{align-self:flex-end;background:var(--color-accent-primary);color:var(--color-text-inverse);border-radius:var(--radius-xl) var(--radius-xl) 4px var(--radius-xl);box-shadow:var(--shadow-sm)}.message-bubble.assistant{align-self:flex-start;background:var(--color-bg-surface);border:1px solid var(--color-border-subtle);color:var(--color-text-primary);border-radius:var(--radius-xl) var(--radius-xl) var(--radius-xl) 4px;max-width:100%}.message-bubble:focus-within{outline:2px solid var(--color-border-default);outline-offset:2px;box-shadow:0 0 0 4px rgba(16,163,127,.06)}.message-role{font-size:var(--text-xs);font-weight:var(--font-semibold);text-transform:uppercase;letter-spacing:.05em;opacity:.7;margin-bottom:var(--spacing-xs)}.message-content{white-space:pre-wrap;line-height:var(--leading-relaxed);word-wrap:break-word;font-size:var(--text-base)}.message-content a{color:var(--color-accent-primary);text-decoration:underline}.message-content code,.message-content pre{background:var(--code-bg);color:var(--color-text-secondary);border:1px solid var(--color-border-subtle);padding:6px 8px;border-radius:var(--radius-sm);font-family:var(--font-mono);font-size:.95em;white-space:pre-wrap}.message-timestamp{font-size:var(--text-xs);opacity:.6;margin-top:var(--spacing-xs);text-align:right}.composer{padding:var(--spacing-lg);background:var(--color-bg-surface);border-top:1px solid var(--color-border-subtle);-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);position:-webkit-sticky;position:sticky;bottom:0}.composer-wrapper{max-width:800px;margin:0 auto;position:relative}.composer-input{width:100%;min-height:52px;max-height:200px;padding:var(--spacing-md) 48px var(--spacing-md) var(--spacing-lg);border-radius:var(--radius-lg);border:1px solid var(--color-border-default);background:var(--color-bg-surface-2);color:var(--color-text-primary);font-family:var(--font-sans);font-size:var(--text-base);line-height:var(--leading-normal);resize:vertical;outline:none;transition:border-color var(--duration-fast) var(--ease-out),box-shadow var(--duration-fast) var(--ease-out)}.composer-input:focus{border-color:var(--color-accent-primary);box-shadow:0 0 0 3px rgba(16,163,127,.1)}.composer-input:disabled{opacity:.5;cursor:not-allowed;background:var(--color-bg-hover)}.composer-actions{position:absolute;bottom:var(--spacing-md);right:var(--spacing-md)}@media (max-width:1440px){.chat-root{padding:0}.chat-layout{max-width:1200px;margin:0 auto}}@media (max-width:1024px){.chat-layout{grid-template-columns:240px 1fr}.thread{padding:var(--spacing-lg)}.composer-wrapper,.thread{max-width:calc(100% - 32px);margin:0 auto}.conversation-title{font-size:var(--text-sm)}}@media (max-width:768px){.chat-header{padding:0 var(--spacing-lg)}.chat-header h1{font-size:var(--text-base)}.endpoint{display:none}.chat-layout{grid-template-columns:1fr}.sidebar{display:none}.thread{padding:var(--spacing-md)}.message-bubble{max-width:85%;padding:var(--spacing-sm) var(--spacing-md)}.composer{padding:var(--spacing-md)}.composer-wrapper{padding:0 var(--spacing-md);max-width:100%}.conversation-item{padding:var(--spacing-sm) var(--spacing-md);margin:0}}@media (max-width:480px){.message-bubble{max-width:95%;padding:var(--spacing-sm) var(--spacing-md)}.chat-header h1{font-size:var(--text-sm)}.composer-input{padding:var(--spacing-sm) 40px var(--spacing-sm) var(--spacing-sm);min-height:48px}.send-btn{width:32px;height:32px}.conversation-title{font-size:var(--text-sm)}}@media (prefers-reduced-motion:reduce){.composer-input,.message-bubble,.new-chat-btn,.send-btn{transition:none!important;animation:none!important}}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,1,1);white-space:nowrap;border:0}@media (prefers-reduced-motion:reduce){*,:after,:before{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important}}.u-translate-gpu{transform:translateZ(0);will-change:transform,opacity}.u-fade{transition:opacity var(--duration-base) var(--ease-out)}.chat-header{display:flex;justify-content:space-between;align-items:center;gap:16px}.header-left{display:flex;flex-direction:column;gap:8px}.header-right,.user-info{display:flex;align-items:center}.user-info{gap:12px;padding:8px 12px;background:#f7fafc;border-radius:8px}.user-email{font-size:14px;color:#2d3748;font-weight:500}.logout-btn{padding:6px 14px;background:#667eea;color:#fff;border:none;border-radius:6px;font-size:13px;font-weight:500;cursor:pointer;transition:all .2s}.logout-btn:hover{background:#5a67d8;transform:translateY(-1px)}.logout-btn:active{transform:translateY(0);.hamburger-btn{display:none;width:48px;height:48px;background:transparent;border:none;cursor:pointer;padding:12px;margin-right:var(--spacing-sm);border-radius:var(--radius-md);transition:background var(--duration-fast) var(--ease-out);flex-shrink:0}.hamburger-btn:hover{background:var(--color-bg-hover)}.hamburger-btn:active{background:var(--color-bg-active)}.hamburger-icon{display:flex;flex-direction:column;gap:5px;width:24px;height:18px}.hamburger-icon span{display:block;width:100%;height:2px;background:var(--color-text-primary);border-radius:2px;transition:transform var(--duration-base) var(--ease-out),opacity var(--duration-base) var(--ease-out)}.sidebar-container{position:relative}.sidebar-backdrop{display:none;position:fixed;top:0;left:0;right:0;bottom:0;background:rgba(0,0,0,.5);z-index:40;animation:fadeIn var(--duration-base) var(--ease-out)}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}.sidebar-close-btn{display:none;position:absolute;top:var(--spacing-md);right:var(--spacing-md);width:40px;height:40px;background:var(--color-bg-hover);border:1px solid var(--color-border-subtle);border-radius:var(--radius-md);color:var(--color-text-primary);font-size:24px;line-height:1;cursor:pointer;z-index:10;transition:background var(--duration-fast) var(--ease-out),transform var(--duration-fast) var(--ease-out)}.sidebar-close-btn:hover{background:var(--color-bg-active);transform:scale(1.05)}.sidebar-close-btn:active{transform:scale(.95)}.mobile-menu-trigger{display:none;width:44px;height:44px;background:transparent;border:none;cursor:pointer;border-radius:var(--radius-md);transition:background var(--duration-fast) var(--ease-out);flex-shrink:0}.mobile-menu-trigger:hover{background:var(--color-bg-hover)}.mobile-menu-trigger:active{background:var(--color-bg-active)}.mobile-menu-trigger-icon{font-size:24px;color:var(--color-text-primary);font-weight:700;line-height:1}.mobile-menu-backdrop{position:fixed;top:0;left:0;right:0;bottom:0;z-index:45}.mobile-menu-dropdown{position:fixed;top:64px;right:var(--spacing-md);background:var(--color-bg-surface);border:1px solid var(--color-border-default);border-radius:var(--radius-lg);box-shadow:var(--shadow-lg);z-index:50;min-width:200px;overflow:hidden;animation:slideDown var(--duration-base) var(--ease-out)}@keyframes slideDown{0%{opacity:0;transform:translateY(-8px)}to{opacity:1;transform:translateY(0)}}.mobile-menu-item{display:block;width:100%;padding:var(--spacing-md) var(--spacing-lg);background:transparent;border:none;color:var(--color-text-primary);font-size:var(--text-base);text-align:left;text-decoration:none;cursor:pointer;transition:background var(--duration-fast) var(--ease-out);min-height:44px}.mobile-menu-item:hover{background:var(--color-bg-hover)}.mobile-menu-item:active{background:var(--color-bg-active)}.mobile-menu-logout{border-top:1px solid var(--color-border-subtle);color:var(--color-error)}.header-link{background:transparent;border:none;color:var(--color-text-secondary);cursor:pointer;font-size:var(--text-sm);padding:var(--spacing-sm) var(--spacing-md);text-decoration:none;transition:color var(--duration-fast) var(--ease-out);border-radius:var(--radius-sm)}.header-link:hover{color:var(--color-text-primary);background:var(--color-bg-hover)}@media (min-width:1441px){.chat-root{max-width:1600px}}@media (min-width:1025px){.hamburger-btn,.mobile-menu-trigger{display:none}.sidebar-backdrop{display:none!important}.sidebar-close-btn{display:none}}@media (min-width:769px) and (max-width:1024px){.hamburger-btn{display:flex}.chat-layout{grid-template-columns:1fr}.sidebar-container{position:fixed;top:64px;left:0;bottom:0;width:280px;transform:translateX(-100%);transition:transform var(--duration-base) var(--ease-out);z-index:45}.sidebar-container.mobile-open{transform:translateX(0)}.sidebar-container.mobile-open~.sidebar-backdrop{display:block}.sidebar{height:100%;border-right:1px solid var(--color-border-default);box-shadow:var(--shadow-lg)}.sidebar-close-btn{display:block}.mobile-menu-trigger{display:none}}@media (max-width:768px){.hamburger-btn{display:flex}.chat-header{height:56px;padding:0 var(--spacing-md)}.chat-header h1{font-size:var(--text-base)}.header-nav{display:none}.mobile-menu-trigger{display:flex}.chat-layout{grid-template-columns:1fr}.sidebar-container{position:fixed;top:56px;left:0;bottom:0;width:85vw;max-width:320px;transform:translateX(-100%);transition:transform var(--duration-base) var(--ease-out);z-index:45}.sidebar-container.mobile-open{transform:translateX(0)}.sidebar-backdrop,.sidebar-container.mobile-open+.sidebar-backdrop{display:block}.sidebar{height:100%;border-right:1px solid var(--color-border-default);box-shadow:var(--shadow-xl)}.sidebar-close-btn{display:block}.thread{padding:var(--spacing-md)}.message-bubble{max-width:90%;padding:var(--spacing-sm) var(--spacing-md)}.composer{padding:var(--spacing-md)}.conversation-item{padding:var(--spacing-md) var(--spacing-lg);margin:0 var(--spacing-xs);min-height:48px}.new-chat-btn{height:48px}}@media (max-width:480px){.chat-header{height:56px;padding:0 var(--spacing-sm)}.chat-header h1{font-size:var(--text-sm)}.hamburger-btn{width:44px;height:44px}.mobile-menu-trigger{width:40px;height:40px}.sidebar-container{width:90vw;max-width:300px}.message-bubble{max-width:95%;font-size:var(--text-sm)}.composer-input{padding:var(--spacing-sm) 44px var(--spacing-sm) var(--spacing-md);min-height:48px;font-size:var(--text-base)}.conversation-title{font-size:var(--text-sm)}.conversation-date{font-size:var(--text-xs)}}@media (hover:none) and (pointer:coarse){.conversation-item:hover{background:transparent}.conversation-item:active{background:var(--color-bg-active)}.hamburger-btn:hover{background:transparent}.hamburger-btn:active{background:var(--color-bg-active)}.mobile-menu-item:hover{background:transparent}.mobile-menu-item:active{background:var(--color-bg-active)}.conversation-item{min-height:52px;padding:var(--spacing-md) var(--spacing-lg)}.new-chat-btn{min-height:52px}.hamburger-btn,.mobile-menu-trigger,.sidebar-close-btn{min-width:48px;min-height:48px}}@media (prefers-reduced-motion:reduce){.mobile-menu-dropdown,.sidebar-backdrop,.sidebar-container{transition:none!important;animation:none!important}.hamburger-icon span{transition:none!important}}@media (prefers-contrast:high){.sidebar{border-right:2px solid var(--color-border-strong)}.mobile-menu-dropdown{border:2px solid var(--color-border-strong)}.hamburger-icon span{background:var(--color-text-primary);height:3px}}}