*{box-sizing:border-box}body{margin:0;font:14px/1.55 system-ui,-apple-system,"Segoe UI",sans-serif}button,input,select,textarea{font:inherit;color:inherit}button,.button,.upload-button{cursor:pointer;border:1px solid var(--line);background:var(--panel);padding:8px 12px;border-radius:10px;text-decoration:none;display:inline-flex;align-items:center;justify-content:center;gap:8px}button:disabled{opacity:.45;cursor:wait}button.primary{background:var(--accent);color:var(--bg);border-color:transparent;font-weight:650}input,select,textarea{background:var(--bg);border:1px solid var(--line);padding:9px 10px;border-radius:9px;min-width:0}.icon-button{padding:4px 10px;background:transparent}.quiet{border-color:transparent;background:transparent;color:var(--muted)}small,.muted{color:var(--muted)}[hidden]{display:none!important}.mobile{display:none}.brand-icon{display:grid;place-items:center;border:1px solid var(--accent);background:var(--accent-soft);color:var(--accent);border-radius:11px;width:36px;height:36px;font:700 21px Georgia,serif}.eyebrow{color:var(--accent);font-size:11px;letter-spacing:2px}.brand{display:flex;align-items:center;gap:11px;margin-bottom:30px}.brand small{display:block;font-size:11px;margin-top:2px}.brand strong{font-size:15px}#app{height:var(--visible-height,100dvh);display:grid;grid-template-columns:252px minmax(320px,1fr) 310px;overflow:hidden}#sidebar{display:flex;flex-direction:column;background:var(--soft);border-right:1px solid var(--line);padding:24px 18px;min-height:0;gap:12px}.space-heading,.section-label{display:flex;justify-content:space-between;align-items:center;color:var(--muted);font-size:11px;text-transform:uppercase;letter-spacing:1px}.space-heading label{margin:0}#sidebar>select{width:100%}#new-thread{margin:4px 0 10px}#threads{flex:1;min-height:0;overflow:auto;margin:0 -6px}.thread{display:block;width:100%;text-align:left;background:transparent;border:1px solid transparent;border-radius:9px;padding:11px 10px;margin:3px 0}.thread b{display:block;overflow:hidden;white-space:nowrap;text-overflow:ellipsis;font-size:13px;font-weight:500}.thread small{font-size:10px}.thread.active{background:var(--accent-soft);border-color:var(--line)}.sidebar-footer{display:flex;align-items:center;justify-content:space-between;border-top:1px solid var(--line);padding-top:12px}.private-dot{font-size:11px;color:var(--muted)}.private-dot:before{content:"";display:inline-block;width:5px;height:5px;background:var(--good);border-radius:50%;margin-right:7px}#chat{display:flex;flex-direction:column;min-width:0;min-height:0}header{display:flex;align-items:center;gap:10px;padding:19px 24px;border-bottom:1px solid var(--line);flex-shrink:0}.heading{flex:1;min-width:0}.heading h1{font-size:16px;margin:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.heading small{font-size:11px}#configbar{display:flex;gap:12px;align-items:center;padding:10px 24px;flex-shrink:0;font-size:11px;color:var(--muted)}#configbar label{display:flex;align-items:center;gap:7px;min-width:0}#configbar select{font-size:11px;padding:4px 7px;max-width:180px;min-height:32px}#status{margin-left:auto;text-align:right}#messages{flex:1;min-height:0;overflow:auto;overflow-x:hidden;padding:24px max(24px,calc((100% - 780px)/2));overscroll-behavior:contain}.welcome{padding:8vh 0 24px;margin:auto;max-width:540px}.welcome-mark{color:var(--accent);font-size:32px}.welcome h2{font-size:36px;letter-spacing:-1px;line-height:1.45;font-weight:550;margin:14px 0 18px}.welcome p:not(.eyebrow){color:var(--muted);line-height:1.9}.suggestions{display:flex;flex-wrap:wrap;gap:8px;margin-top:28px}.suggestions button{font-size:11px;padding:9px 12px;background:transparent}.suggestions span{color:var(--accent);margin-left:12px}.message{margin-bottom:25px;overflow-wrap:anywhere}.message .role{font-size:11px;color:var(--muted);margin-bottom:8px}.message.user{padding:13px 16px;background:var(--panel2);border-radius:13px;margin-left:10%;white-space:pre-wrap}.message .body{line-height:1.85}.message pre{background:var(--panel2);border:1px solid var(--line);padding:12px;overflow:auto;white-space:pre;border-radius:8px;font-size:12px}.message code{font-family:ui-monospace,monospace}.message h2,.message h3{font-size:17px}.message a{color:var(--accent)}details.process{font-size:12px;color:var(--muted);border-left:2px solid var(--line);padding:6px 12px;margin-bottom:18px}details.process pre{max-height:300px;overflow:auto;white-space:pre-wrap;overflow-wrap:anywhere}#activity{font-size:11px;color:var(--accent);padding:0 24px 7px}#composer{border:1px solid var(--line);border-radius:16px;background:var(--panel);margin:0 22px;padding:8px 11px;flex-shrink:0}#input{width:100%;border:0;background:transparent;font-size:16px;resize:none;min-height:55px;max-height:25vh;outline:none;padding:8px 4px}.compose-actions{display:flex;align-items:center;gap:8px}.compose-actions label{font-size:12px;margin:0}.compose-actions small{font-size:10px;flex:1}#send{margin-left:auto}#composer button,#composer .upload-button{min-height:34px}.footnote{font-size:10px;text-align:center;color:var(--muted);padding-bottom:env(safe-area-inset-bottom);margin:8px 0 12px}#files-panel{border-left:1px solid var(--line);padding:23px 18px;display:flex;flex-direction:column;background:var(--soft);min-height:0}.panel-heading{display:flex;align-items:center;gap:12px}.panel-heading>div,.panel-heading h2{flex:1}.panel-heading h2{font-size:15px;margin:0}.panel-heading small{font-size:11px}.file-actions{display:flex;gap:6px;margin-top:24px}.file-actions button,.file-actions label{font-size:11px;padding:6px 9px}.file-actions label{margin:0}#folder-path{font-size:11px;color:var(--muted);overflow-wrap:anywhere}#folder-up{justify-content:start;padding:4px 0;margin-top:12px}#files{flex:1;min-height:0;overflow:auto}.file-row{border-bottom:1px solid var(--line);padding:13px 0;display:grid;grid-template-columns:32px minmax(0,1fr);gap:9px}.file-icon{border:1px solid var(--line);color:var(--accent);border-radius:7px;display:grid;place-items:center;height:35px;font-size:9px;font-weight:700}.file-name{display:block;font-size:12px;overflow-wrap:anywhere}.file-size{font-size:10px;color:var(--muted)}.file-buttons{display:flex;gap:6px;margin-top:5px;flex-wrap:wrap}.file-buttons button,.file-buttons a{font-size:10px;padding:3px 7px;min-height:26px;border-radius:6px}.file-tip{font-size:10px;color:var(--muted);padding-top:15px;line-height:1.8}.empty{font-size:12px;color:var(--muted);text-align:center;padding:40px 12px}#login-view{display:grid;place-items:center;min-height:100dvh;padding:25px;background:radial-gradient(ellipse at 50% 0%,var(--accent-soft),transparent 70%)}.login-card{max-width:420px;width:100%;background:var(--panel);border:1px solid var(--line);border-radius:22px;padding:36px;box-shadow:var(--shadow)}.login-card h1{font-size:25px;margin:18px 0 8px}.login-card .brand-icon{width:42px;height:42px}.login-card label{display:block;color:var(--muted);font-size:12px;margin-top:28px}.login-card input{width:100%;margin:8px 0 13px}.login-card button{width:100%;justify-content:space-between}#login-error{color:var(--bad);font-size:12px}.format-line{text-align:center;border-top:1px solid var(--line);padding-top:24px;margin-top:24px;font-size:11px;color:var(--muted)}.format-line span{padding:0 10px}#toast{position:fixed;bottom:30px;left:50%;transform:translateX(-50%);z-index:150;padding:13px 18px;background:var(--text);color:var(--bg);max-width:min(600px,90vw);border-radius:10px;font-size:12px;box-shadow:var(--shadow)}dialog{width:90vw;max-width:1000px;padding:20px}#preview{height:92dvh}#preview-tools{display:flex;align-items:center;justify-content:center;gap:12px;padding:15px 0}#preview-download{margin-left:auto}#preview-body{min-height:200px;text-align:center;background:var(--bg);border-radius:9px}#preview-body img{max-width:100%;height:auto}#preview-notice{font-size:11px}#editor{height:85dvh;width:900px}#editor-text{width:100%;height:calc(100% - 180px);margin:15px 0;font:13px/1.6 ui-monospace,monospace;resize:none}#editor label{font-size:12px;display:block}#editor-name{margin:0 10px;width:60%}#save-text{margin-top:12px}#name-dialog{max-width:420px}#name-input{width:100%}#name-title{font-size:18px}.dialog-actions{display:flex;justify-content:flex-end;gap:10px;margin-top:20px}#shade{position:fixed;inset:0;background:#0007;z-index:30}#app.files-hidden{grid-template-columns:252px minmax(320px,1fr)}#app.files-hidden #files-panel{display:none}@media(max-width:1250px){#app{grid-template-columns:235px minmax(300px,1fr)}#app.files-hidden{grid-template-columns:235px minmax(300px,1fr)}#files-panel{display:none;position:fixed;right:0;top:0;bottom:0;z-index:45;width:330px;max-width:94vw;box-shadow:var(--shadow)}#app.files-open #files-panel{display:flex}#configbar{flex-wrap:wrap}#status{font-size:10px}}@media(max-width:760px){.mobile{display:inline-flex}#app,#app.files-hidden{grid-template-columns:minmax(0,1fr)}#sidebar{display:none;position:fixed;left:0;top:0;bottom:0;width:285px;max-width:90vw;z-index:45}#app.nav-open #sidebar{display:flex}.brand{margin-bottom:20px}.brand .mobile{margin-left:auto}header{padding:12px;gap:7px}.heading h1{font-size:14px}header button{font-size:11px;padding:5px 8px;min-height:34px!important}#rename-thread{display:none}#configbar{padding:8px 13px;gap:7px}#configbar label{font-size:10px;gap:5px}#configbar select{max-width:140px;font-size:10px}#configbar #effort{max-width:100px}#status{flex:1;min-width:70px}#messages{padding:18px 15px}.welcome{padding:5vh 10px}.welcome h2{font-size:29px}.welcome p:not(.eyebrow){font-size:12px}.suggestions{gap:6px;margin-top:20px}.suggestions button{font-size:10px}#composer{margin:0 10px;padding:6px 8px}#compose-hint{display:none}#input{min-height:48px}.compose-actions{gap:5px}.compose-actions button,.compose-actions label{font-size:11px;padding:6px 9px}#activity{padding-left:15px}.footnote{font-size:9px;margin-bottom:6px}.login-card{padding:27px}#preview{max-width:98vw;width:98vw;padding:12px}#preview-tools{gap:6px;font-size:11px}#preview-tools button,#preview-download{padding:6px 9px;font-size:11px;min-height:32px}#editor-name{width:100%;margin:8px 0}#editor-text{height:calc(100% - 220px)}}