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4px;border:none;background:transparent;color:var(--text-primary);font-size:15px;line-height:1.4;resize:none;outline:none;overflow-y:auto}.composer-textarea::placeholder{color:var(--text-secondary);opacity:.85}.composer-btn{display:inline-flex;align-items:center;justify-content:center;flex-shrink:0;padding:10px;border:none;border-radius:12px;background:transparent;color:var(--text-secondary);cursor:pointer}.composer-btn-attach{grid-area:attach;align-self:center}.composer-btn-attach:active{color:var(--accent)}.composer-btn-mic{grid-area:mic;align-self:center}.composer-btn-mic.active{color:var(--text-primary)}.composer-btn-send{grid-area:send;align-self:center;color:var(--accent)}.composer-btn-send:disabled{opacity:.55;cursor:not-allowed}.composer-file-hint{grid-area:hint;margin:0;padding-left:42px;font-size:12px;color:var(--text-secondary);line-height:1.35;word-break:break-word}.composer-file-hint:empty{display:none}.composer-file-hint.send-error{color:#8a3a32}@media(min-width:640px){.composer-shell{padding:10px 14px;column-gap:10px;border-radius:10px}.composer-textarea{min-height:44px;max-height:280px;padding-top:10px;padding-bottom:10px}.composer-file-hint{font-size:13px}}@media(max-width:768px){.chat-list{width:100%;border-right:none}.shell.has-chat .chat-list{display:none}.shell:not(.has-chat) .chat-pane{display:none}.thread{padding:10px 12px 8px}.thread-back{display:inline-flex;padding:4px;margin:-4px 0 -4px -4px}.thread-top{margin-bottom:10px}.page-title{font-size:1.05rem;line-height:1.25}.settings{padding:16px 16px 24px}.mcp-item{flex-direction:column;align-items:stretch}.mcp-actions{justify-content:flex-end}.composer{padding-bottom:calc(12px + env(safe-area-inset-bottom,0px))}.composer-preview.image{width:calc(112px * var(--ratio, 1));height:112px;max-width:184px}}.key-page{min-height:100%;display:flex;align-items:center;justify-content:center;padding:24px 16px;background:#f3f5f8}.key-card{width:min(440px,100%);padding:36px 32px 28px;background:#fff;border-radius:28px;box-shadow:0 12px 40px #1c273b14}.key-title{margin:0 0 10px;font-size:1.45rem;font-weight:750;letter-spacing:-.03em;color:#1b2433}.key-lead{margin:0 0 22px;color:#7b8798;font-size:15px;line-height:1.45}.key-field{position:relative;display:block}.key-field input{width:100%;height:52px;padding:0 48px 0 16px;border:1px solid #e6eaf0;border-radius:14px;background:#f4f6f8;color:#1b2433;font-size:15px}.key-field input:focus{outline:2px solid #8eb6f5;outline-offset:1px}.key-eye{position:absolute;top:0;right:4px;width:44px;height:52px;border:0;background:transparent;color:#8b95a5;cursor:pointer}.key-error{margin:8px 0 0;color:#b42318;font-size:13px}.key-submit,.key-get{width:100%;height:52px;margin-top:14px;border:0;border-radius:14px;font-size:16px;font-weight:700;cursor:pointer}.key-submit{color:#fff;background:linear-gradient(180deg,#8ec5ff,#5aa6f8)}.key-submit:disabled,.key-get:disabled{opacity:.7;cursor:default}.key-split{display:flex;align-items:center;gap:12px;margin:22px 0 4px;color:#9aa3b2;font-size:14px}.key-split:before,.key-split:after{content:"";flex:1;height:1px;background:#e6eaf0}.key-get{color:#1b2433;background:#eef1f4}.key-help{display:block;width:100%;margin-top:18px;border:0;background:transparent;color:#1b2433;font-size:16px;font-weight:750;cursor:pointer}.key-issued{margin-top:12px;padding:10px 12px;border-radius:10px;background:var(--input-bg);font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:13px;word-break:break-all}.settings-body.brain-body{flex:1;min-height:0;display:flex;flex-direction:column;overflow:hidden}.brain-head{display:flex;align-items:flex-start;justify-content:space-between;gap:16px;flex-shrink:0;flex-wrap:wrap}.brain-lead{margin:0;max-width:640px;color:var(--text-secondary);font-size:14px}.brain-layout{display:flex;gap:16px;flex:1;min-height:0}.brain-canvas{flex:1;min-width:0;min-height:280px;width:100%;height:100%;border-radius:12px;cursor:pointer}.brain-page{width:320px;flex-shrink:0;overflow:auto;background:#fff;border:1px solid var(--border-color);border-radius:12px;padding:14px}.brain-page-actions{display:flex;flex-wrap:wrap;gap:6px;margin-bottom:12px}.brain-page-title{margin:0 0 8px;font-size:16px}.brain-page .prompt-label{margin-top:4px}.brain-body-input{min-height:140px}.brain-text{margin:8px 0 0;white-space:pre-wrap;font:inherit;font-size:14px}.brain-link{display:inline;padding:0;border:none;background:none;color:var(--accent);font:inherit;font-size:inherit;line-height:inherit;cursor:pointer;text-decoration:underline;text-underline-offset:2px}.brain-link:hover{color:var(--text-primary)}@media(max-width:720px){.brain-layout{flex-direction:column}.brain-page{width:auto;max-height:240px}}