:root{color-scheme:dark;--bg:#10151e;--panel:#171e29;--line:#2b3544;--text:#e5eaf1;--muted:#96a4b8;--accent:#78b8ac;--button:#83c4b5;--ink:#11241e;--error:#ffb0a9}
*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text);font:14px/1.65 "Segoe UI","Microsoft YaHei",sans-serif;height:100dvh;display:flex;flex-direction:column}button,input,textarea{font:inherit}button{cursor:pointer}button:disabled{cursor:default;opacity:.45}button,input,textarea{outline-offset:3px}button:focus-visible,input:focus-visible,textarea:focus-visible{outline:2px solid var(--accent)}input,textarea{background:#111823;color:var(--text);border:1px solid var(--line);border-radius:7px;padding:9px 11px;min-width:0}input::placeholder,textarea::placeholder{color:#77869a}input[type=checkbox]{accent-color:var(--accent)}.topbar{display:flex;align-items:center;gap:30px;padding:15px 24px;border-bottom:1px solid var(--line);flex-wrap:wrap}.brand{display:flex;align-items:center;gap:12px}.brand-icon{font-size:32px;color:var(--accent)}.brand strong{display:block;font-size:18px;letter-spacing:2px}.brand small{color:var(--muted);font-size:11px;letter-spacing:1px}.topbar nav{display:flex;gap:5px}.tab{background:none;color:var(--muted);border:0;padding:9px 15px;border-radius:7px}.tab.active{background:#243a39;color:#b0dfd3}.topbar>.button{margin-left:auto}.button{border:1px solid transparent;background:var(--button);color:var(--ink);border-radius:7px;padding:8px 15px;font-weight:600;white-space:nowrap}.button:hover{filter:brightness(1.08)}.button.secondary{background:transparent;border-color:var(--line);color:var(--text)}.folderbar{display:flex;align-items:center;gap:12px;padding:14px 24px}.folderbar label{color:var(--muted);white-space:nowrap}.folderbar input{flex:1}.workspace{display:grid;grid-template-columns:minmax(210px,23%) minmax(240px,1fr) minmax(320px,32%);gap:12px;padding:0 24px 16px;flex:1;min-height:0}.panel{border:1px solid var(--line);border-radius:10px;background:var(--panel);display:flex;flex-direction:column;min-width:0;min-height:0;overflow:hidden}.panel-heading{display:flex;align-items:center;gap:10px;padding:12px 15px;border-bottom:1px solid var(--line);min-height:54px}.panel-heading h2{font-size:14px;margin:0;font-weight:600}.actions{margin-left:auto;display:flex;gap:4px}.icon-button{background:transparent;border:1px solid var(--line);color:var(--muted);border-radius:5px;min-width:30px;height:28px;font-size:18px;line-height:1}.icon-button:hover{color:var(--text);background:#2a3544}.text-button{background:none;border:0;color:var(--accent);font-size:12px;margin-left:auto}.breadcrumbs{font-size:12px;color:var(--muted);padding:12px 14px 4px;overflow-wrap:anywhere}.search-label{padding:8px 12px;display:block}.search-label input{width:100%;font-size:12px;padding:7px 9px}.file-list{overflow:auto;flex:1;padding:4px 7px}.file-row{width:100%;display:flex;align-items:center;gap:9px;text-align:left;border:0;color:var(--text);background:none;border-radius:6px;padding:9px 8px}.file-row:hover{background:#232f3f}.file-row.selected{background:#273d3d;color:#b0dfd3}.file-icon{color:var(--muted);flex:none;width:19px}.file-name{overflow:hidden;text-overflow:ellipsis;white-space:nowrap;font-size:13px}.file-size{margin-left:auto;font-size:10px;white-space:nowrap;color:var(--muted)}.panel-foot{padding:8px 13px;border-top:1px solid var(--line);color:var(--muted);font-size:11px}.badge{font-size:11px;color:var(--muted);margin-left:auto;border:1px solid var(--line);border-radius:4px;padding:1px 6px}.preview-meta{padding:10px 15px;color:var(--muted);font-size:11px;border-bottom:1px solid var(--line);overflow-wrap:anywhere}.preview{flex:1;overflow:auto;min-height:0}.preview pre{white-space:pre-wrap;overflow-wrap:anywhere;padding:18px;margin:0;font:13px/1.85 Consolas,"Microsoft YaHei",monospace;tab-size:4}.preview img{display:block;max-width:100%;height:auto;margin:auto;padding:16px}.empty{padding:45px 20px;text-align:center;color:var(--muted)}.empty-icon{font-size:40px;color:#527b75}.empty h3{font-size:17px;color:#c7d3df;font-weight:500;margin:10px 0}.empty p{font-size:12px}.muted{color:var(--muted)}.small{font-size:11px}.ai-status{padding:9px 15px;background:#1b2531;color:var(--muted);font-size:11px;overflow-wrap:anywhere}.messages{flex:1;overflow:auto;padding:16px;display:flex;flex-direction:column;gap:17px}.message{font-size:13px}.message-label{font-size:11px;color:var(--accent);margin-bottom:5px}.message.user .message-label{color:#a9bad5}.message-content{white-space:pre-wrap;overflow-wrap:anywhere;line-height:1.85}.message.user .message-content{background:#222e3d;border:1px solid var(--line);padding:10px 12px;border-radius:8px}.message-attachment{color:var(--muted);font-size:10px;margin-top:5px}.composer{padding:12px;border-top:1px solid var(--line)}.attachment{display:flex;align-items:flex-start;gap:7px;font-size:11px;color:var(--muted);margin-bottom:9px;overflow-wrap:anywhere}.attachment input{flex:none;margin-top:3px}.composer textarea{width:100%;resize:vertical;min-height:85px;max-height:230px;font-size:13px}.composer-bottom{display:flex;align-items:center;gap:10px;justify-content:space-between;margin-top:9px}.composer-bottom span{font-size:10px;color:var(--muted)}.error{color:var(--error);font-size:12px;padding-top:9px;overflow-wrap:anywhere}.statusbar{display:flex;align-items:center;gap:20px;padding:6px 24px;border-top:1px solid var(--line);font-size:10px;color:var(--muted)}.statusbar span:nth-child(2){flex:1;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.status-dot{display:inline-block;width:6px;height:6px;border-radius:50%;background:var(--accent);margin-right:5px}dialog{background:var(--panel);color:var(--text);border:1px solid #405164;border-radius:13px;width:min(570px,94vw);max-height:92dvh;overflow:auto;padding:23px;box-shadow:0 25px 100px #0008}dialog::backdrop{background:#060a11b8}.dialog-heading{display:flex;justify-content:space-between;gap:15px}.dialog-heading h2{font-size:19px;margin:0}.dialog-heading p{color:var(--muted);font-size:12px;margin:5px 0 17px}.notice{background:#213334;border:1px solid #38514d;color:#b5cfc8;border-radius:7px;padding:12px;font-size:12px;margin-bottom:18px}.field{display:flex;flex-direction:column;gap:7px;font-size:12px;margin:15px 0}.field small{font-size:11px;color:var(--muted)}.dialog-actions{display:flex;justify-content:space-between;gap:10px;margin:20px 0 12px}#settingsResult{font-size:12px;white-space:pre-wrap;overflow-wrap:anywhere}.toast{position:fixed;bottom:45px;left:50%;transform:translateX(-50%);background:#2b4140;border:1px solid #597c73;color:#d3eee5;padding:10px 18px;border-radius:8px;max-width:90vw;font-size:12px;z-index:20}.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0,0,0,0)}.workspace.chat-focus{grid-template-columns:minmax(250px,1fr) minmax(400px,1.5fr)}.workspace.chat-focus .explorer{display:none}
@media(max-width:1050px){.workspace{grid-template-columns:210px minmax(220px,1fr) 320px;padding:0 12px 12px;gap:8px}.topbar{padding:12px;gap:16px}.folderbar{padding:12px}.brand small{display:none}.tab{padding:8px 9px}.statusbar{padding:5px 12px}}
@media(max-width:800px){body{height:auto;min-height:100dvh}.topbar{gap:12px}.brand{flex:1}.topbar nav{order:3;width:100%}.folderbar{flex-wrap:wrap}.folderbar label{width:100%}.workspace{grid-template-columns:minmax(150px,1fr) minmax(180px,1.5fr);flex:none}.explorer,.preview-panel{height:440px}.chat-panel{grid-column:1/-1;height:620px}.workspace.chat-focus{grid-template-columns:1fr}.workspace.chat-focus .preview-panel{display:none}.topbar>.button{margin-left:0}}

/* Full-page account login. */
.login-page{min-height:100dvh;height:auto;background:radial-gradient(ellipse at 15% 30%,#1d363426,transparent 60%),var(--bg);justify-content:center;padding:42px 32px 25px}
.login-layout{display:grid;grid-template-columns:minmax(320px,1.1fr) minmax(340px,440px);gap:100px;align-items:center;width:min(1040px,100%);margin:auto}
.login-intro{min-height:490px;display:flex;flex-direction:column;justify-content:space-between}.login-intro-copy{padding:35px 0}.login-eyebrow{font-size:12px;letter-spacing:2px;color:var(--accent)}.login-intro h1{font-size:42px;line-height:1.55;letter-spacing:2px;font-weight:500;margin:17px 0 22px}.login-intro-copy p{color:var(--muted);font-size:14px;line-height:2}.login-features{display:flex;gap:14px;flex-wrap:wrap;color:var(--muted);font-size:11px}.login-features span{padding:5px 12px;border:1px solid var(--line);border-radius:20px}.login-card{background:var(--panel);border:1px solid var(--line);border-radius:16px;padding:36px;box-shadow:0 20px 80px #0002}.login-card h2{font-size:25px;margin:8px 0;font-weight:600;letter-spacing:1px}.login-subtitle{font-size:13px;color:var(--muted);margin:0 0 30px}.login-card .field{gap:10px;margin-bottom:22px;font-size:13px}.login-card input{width:100%;padding:12px 13px;font-size:14px}.password-field{position:relative;display:block}.password-field input{padding-right:64px}.password-toggle{position:absolute;right:7px;top:6px;bottom:6px;background:none;color:var(--muted);border:0;padding:0 10px;font-size:12px}.password-toggle:hover{color:var(--accent)}.login-submit{display:flex;justify-content:space-between;width:100%;padding:12px 16px;margin-top:28px;font-size:14px}.login-footnote{font-size:11px;color:var(--muted);margin:24px 0 0;line-height:1.8}.login-error{font-size:12px;color:var(--error);border-left:2px solid var(--error);padding:6px 10px;margin-bottom:12px}.login-footer{color:#6e7b8e;text-align:center;margin-top:38px;font-size:11px;letter-spacing:1px}.topbar>#logoutButton{margin-left:-18px}[hidden]{display:none!important}
@media(max-width:900px){.login-layout{gap:40px;grid-template-columns:minmax(250px,1fr) minmax(300px,400px)}.login-intro h1{font-size:33px}.login-card{padding:28px}}
@media(max-width:680px){.login-page{padding:26px 20px;justify-content:flex-start}.login-layout{display:block;max-width:420px}.login-intro{min-height:0;gap:20px;margin-bottom:30px}.login-intro-copy,.login-features{display:none}.login-intro .brand small{display:block}.login-card{padding:28px 24px}.login-footer{margin-top:30px}.topbar>#logoutButton{margin-left:auto}}

/* API profiles and per-message model picker. */
select{font:inherit;background:#111823;color:var(--text);border:1px solid var(--line);border-radius:7px;padding:9px 11px;min-width:0;outline-offset:3px}select:focus-visible{outline:2px solid var(--accent)}select:disabled{opacity:.55}.send-hint{font-size:10px;color:var(--muted);margin-top:7px}.model-picker{display:flex;align-items:center;gap:8px;flex:1;min-width:0}.model-picker>span{font-size:11px;flex:none;color:var(--muted)}.model-picker select{width:100%;font-size:11px;padding:9px 7px;text-overflow:ellipsis}.profile-toolbar{display:flex;align-items:end;gap:10px;margin:10px 0 18px}.profile-toolbar .field{flex:1;min-width:0;margin:0}.profile-toolbar .button{margin-bottom:0}.danger{color:var(--error)}#deleteProfile{margin:0;padding:5px 0}#profileModels{font:12px/1.7 Consolas,"Microsoft YaHei",monospace;resize:vertical;min-height:80px}.field select{width:100%}.composer-bottom{align-items:center}#sendButton{min-width:65px}.message-label{overflow-wrap:anywhere}
@media(max-width:420px){.profile-toolbar{align-items:stretch;flex-direction:column}.profile-toolbar .button{align-self:flex-end}.model-picker{gap:5px}.model-picker select{font-size:10px}.composer-bottom{gap:7px}}