:root{color-scheme:dark;--bg:#151515;--side:#101010;--panel:#1d1d1d;--panel2:#242424;--line:#343434;--text:#f3f3f3;--muted:#aaa;--accent:#b8ff4b;--accent2:#83d3ff;--danger:#ff8585;--max:880px;font-family:Inter,ui-sans-serif,system-ui,-apple-system,"Segoe UI",sans-serif}
*{box-sizing:border-box}html,body{height:100%;margin:0;background:var(--bg);color:var(--text)}body{overflow:hidden}button,input,textarea,select{font:inherit}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}.skip-link{position:fixed;left:1rem;top:-4rem;background:#fff;color:#000;padding:.7rem 1rem;border-radius:.5rem;z-index:100}.skip-link:focus{top:1rem}.app-shell{height:100%;display:grid;grid-template-columns:260px minmax(0,1fr)}.sidebar{background:var(--side);border-right:1px solid #252525;padding:18px 14px 12px;display:flex;flex-direction:column;gap:14px;min-width:0;z-index:30}.brand{height:40px;display:flex;align-items:center;gap:10px;color:#fff;text-decoration:none;font-weight:750;padding:0 8px}.brand-mark,.hero-mark{display:grid;place-items:center;background:linear-gradient(135deg,var(--accent),var(--accent2));color:#101010;font-weight:900}.brand-mark{width:27px;height:27px;border-radius:8px}.new-chat{width:100%;border:1px solid #393939;background:#202020;color:#fff;border-radius:10px;padding:10px 12px;text-align:left;cursor:pointer}.new-chat:hover,.mode-nav a:hover,.secondary-nav a:hover,.history-item:hover{background:#292929}.mode-nav,.secondary-nav{display:grid;gap:3px}.mode-nav a,.secondary-nav a{display:flex;align-items:center;gap:12px;color:#d7d7d7;text-decoration:none;border-radius:9px;padding:9px 11px;font-size:14px}.mode-nav a.active,.secondary-nav a.active{background:#2a2a2a;color:#fff}.mode-nav a span,.secondary-nav a span{width:18px;text-align:center;color:#bbb}.history-section{border-top:1px solid #292929;padding-top:13px;min-height:0;display:flex;flex:1;flex-direction:column}.section-label{padding:0 10px 7px;color:#777;font-size:11px;text-transform:uppercase;letter-spacing:.08em}.history-list{min-height:0;overflow-y:auto}.history-empty{font-size:12px;color:#666;padding:0 10px;line-height:1.5}.history-item{border:0;background:transparent;color:#bbb;width:100%;display:block;text-align:left;padding:8px 10px;border-radius:8px;cursor:pointer;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;font-size:13px}.secondary-nav{border-top:1px solid #292929;padding-top:10px}.main-column{position:relative;min-width:0;height:100%;display:grid;grid-template-rows:auto minmax(0,1fr) auto;background:radial-gradient(circle at 50% 0,#232323 0,transparent 42%)}.conversation-header{min-height:68px;padding:14px 24px;border-bottom:1px solid rgba(255,255,255,.055);display:flex;justify-content:space-between;align-items:center;gap:16px}.conversation-header h1{font-size:16px;margin:0 0 4px}.conversation-header p{font-size:12px;color:#888;margin:0}.header-actions{display:flex;align-items:center;gap:10px}.boundary-badge{font-size:10px;letter-spacing:.08em;border:1px solid #3e3e3e;border-radius:999px;padding:5px 8px;color:#aaa}.quiet-button,.icon-button{border:0;background:transparent;color:#bbb;cursor:pointer}.quiet-button{border:1px solid #3a3a3a;border-radius:8px;padding:6px 9px}.conversation{overflow-y:auto;padding:30px 22px 150px}.empty-state{max-width:780px;margin:8vh auto 0;text-align:center}.hero-mark{width:50px;height:50px;border-radius:15px;margin:0 auto 24px;font-size:21px}.empty-state h2{font-size:32px;letter-spacing:-.025em;margin:0 0 12px}.empty-state>p{max-width:650px;margin:0 auto;color:var(--muted);line-height:1.6}.quick-prompts{margin:30px auto 0;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px;max-width:720px}.quick-prompt{border:1px solid var(--line);background:rgba(32,32,32,.8);border-radius:13px;color:#ddd;text-align:left;padding:13px 15px;cursor:pointer;min-height:58px}.quick-prompt:hover{border-color:#555;background:#272727}.messages{max-width:var(--max);margin:0 auto;display:grid;gap:22px}.message{display:grid;grid-template-columns:34px minmax(0,1fr);gap:12px}.message.user{grid-template-columns:minmax(0,1fr);justify-items:end}.message.user .message-body{background:#2b2b2b;border:1px solid #383838;border-radius:18px 18px 4px 18px;padding:11px 15px;max-width:78%}.avatar{width:30px;height:30px;border-radius:9px;background:linear-gradient(135deg,var(--accent),var(--accent2));display:grid;place-items:center;color:#111;font-weight:900}.message-body{min-width:0;line-height:1.58;color:#e7e7e7}.message-body p{margin:0 0 10px;white-space:pre-wrap}.message-body p:last-child{margin-bottom:0}.message-body h3{font-size:14px;margin:18px 0 7px;color:#fff}.message-body pre{margin:10px 0;background:#0e0e0e;border:1px solid #303030;border-radius:10px;padding:13px;overflow:auto;color:#d8f7c6;font:12px/1.55 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max(14px,env(safe-area-inset-bottom));background:linear-gradient(transparent,var(--bg) 20%);z-index:10}.composer-box{max-width:var(--max);margin:0 auto;background:#242424;border:1px solid #3a3a3a;border-radius:18px;padding:8px 9px;display:flex;align-items:flex-end;gap:7px;box-shadow:0 10px 35px rgba(0,0,0,.25)}.composer-box:focus-within{border-color:#595959}.attach-button{width:34px;height:34px;border-radius:50%;display:grid;place-items:center;color:#bbb;cursor:pointer;font-size:21px}.attach-button:hover{background:#333}.composer textarea{flex:1;resize:none;max-height:170px;min-height:36px;padding:7px 5px;border:0;outline:0;background:transparent;color:#fff;line-height:1.45}.composer select{align-self:center;max-width:105px;background:#191919;color:#bbb;border:1px solid #3a3a3a;border-radius:8px;padding:5px 6px;font-size:10px}.send-button{width:35px;height:35px;border-radius:50%;border:0;background:#f1f1f1;color:#111;font-weight:900;cursor:pointer}.send-button:disabled{opacity:.4;cursor:not-allowed}.send-button.stop{background:#444;color:#fff}.composer-note{text-align:center;color:#666;font-size:10px;margin:7px auto 0}.selected-file{max-width:var(--max);margin:0 auto 6px;background:#232323;border:1px solid #333;padding:7px 10px;border-radius:9px;color:#aaa;font-size:12px}.context-panel{width:340px;background:#151515;border-left:1px solid #303030;padding:16px;overflow:auto}.context-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:14px}.context-panel p,.context-panel li{font-size:12px;color:#aaa;line-height:1.55}.context-panel code{font-size:11px}.mobile-bar{display:none}.drawer-shade{position:fixed;inset:0;background:rgba(0,0,0,.58);z-index:25}.toast{position:fixed;bottom:100px;left:50%;transform:translateX(-50%);background:#eee;color:#111;padding:9px 13px;border-radius:9px;z-index:80;font-size:12px;box-shadow:0 8px 30px #000}.settings-card{max-width:700px;margin:7vh auto;border:1px solid #333;background:#1c1c1c;border-radius:15px;padding:22px}.settings-card h2{margin-top:0}.settings-row{display:flex;justify-content:space-between;align-items:center;border-top:1px solid #303030;padding:14px 0;color:#ccc}.danger-button{border:1px solid #653c3c;background:#2a1b1b;color:#ffb1b1;border-radius:8px;padding:7px 10px;cursor:pointer}.mobile-brand{color:#fff;text-decoration:none;font-weight:750}.loading-dots{display:inline-flex;gap:4px}.loading-dots i{width:6px;height:6px;background:#777;border-radius:50%;animation:pulse 1.1s infinite}.loading-dots i:nth-child(2){animation-delay:.15s}.loading-dots i:nth-child(3){animation-delay:.3s}@keyframes pulse{0%,70%,100%{opacity:.25}35%{opacity:1}}
@media(max-width:900px){.app-shell{grid-template-columns:220px minmax(0,1fr)}.sidebar{padding-left:10px;padding-right:10px}.context-panel{position:fixed;right:0;top:0;bottom:0;z-index:50;box-shadow:-12px 0 30px rgba(0,0,0,.35)}}
@media(max-width:700px){body{overflow:hidden}.mobile-bar{height:52px;display:flex;align-items:center;justify-content:space-between;padding:0 12px;background:#111;border-bottom:1px solid #292929}.mobile-bar .icon-button{font-size:20px;padding:8px}.app-shell{height:calc(100% - 52px);display:block}.sidebar{position:fixed;left:0;top:0;bottom:0;width:min(84vw,290px);transform:translateX(-104%);visibility:hidden;transition:transform .2s ease,visibility .2s ease;box-shadow:12px 0 35px rgba(0,0,0,.45)}.sidebar.open{transform:translateX(0);visibility:visible}.main-column{height:100%}.conversation-header{min-height:57px;padding:10px 14px}.conversation-header h1{font-size:15px}.conversation-header p{display:none}.conversation{padding:20px 13px 135px}.empty-state{margin-top:5vh}.empty-state h2{font-size:26px}.empty-state>p{font-size:14px}.quick-prompts{grid-template-columns:1fr;margin-top:22px}.quick-prompt{min-height:50px}.composer{padding:7px 9px max(9px,env(safe-area-inset-bottom))}.composer-box{border-radius:16px}.composer select{width:71px}.composer-note{font-size:9px}.message.user .message-body{max-width:90%}.context-panel{width:min(92vw,360px)}.header-actions .boundary-badge{display:none}}
@media(max-width:380px){.composer select{display:none}.attach-button{width:30px}.conversation{padding-left:10px;padding-right:10px}.empty-state h2{font-size:23px}}
@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;animation:none!important;transition:none!important}}