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.proto-msg-body{background:var(--mr-surface);border-left:3px solid var(--mr-assistant-border)}.proto-msg.assistant .markdown-message{color:inherit}.proto-thinking{border:1px dashed var(--mr-border);background:var(--mr-surface);color:var(--mr-muted);border-radius:8px;align-items:center;gap:10px;padding:14px 16px;font-size:14px;display:flex}.proto-thinking-dots{gap:4px;display:flex}.proto-thinking-dots span{background:var(--mr-muted);border-radius:50%;width:6px;height:6px;animation:1.2s ease-in-out infinite proto-pulse}.proto-thinking-dots span:nth-child(2){animation-delay:.15s}.proto-thinking-dots span:nth-child(3){animation-delay:.3s}.proto-composer-wrap{padding:12px 0 max(16px, env(safe-area-inset-bottom));background:linear-gradient(to top, var(--mr-bg) 75%, transparent);flex-shrink:0;position:sticky;bottom:0}.proto-composer{border:1px solid var(--mr-border);background:var(--mr-surface);border-radius:10px;align-items:flex-end;gap:10px;padding:12px;display:flex;box-shadow:0 4px 16px #0f172a0f}.proto-input{resize:none;color:var(--mr-fg);background:0 0;border:none;outline:none;flex:1;min-height:24px;max-height:140px;font-family:inherit;font-size:15px;line-height:1.5}.proto-input::placeholder{color:#94a3b8}.proto-send{background:var(--mr-accent);color:#fff;cursor:pointer;border:none;border-radius:8px;flex-shrink:0;height:40px;padding:0 16px;font-family:inherit;font-size:14px;font-weight:600}.proto-send:disabled{opacity:.45;cursor:default}.proto-send:not(:disabled):hover{background:#1d4ed8}.proto-model-panel{flex:1;min-width:0;position:relative}.proto-model-panel.compact{flex:1}.proto-model-trigger{border:1px solid var(--mr-border);background:var(--mr-bg);cursor:pointer;text-align:left;width:100%;max-width:420px;color:var(--mr-fg);border-radius:8px;align-items:center;gap:10px;padding:10px 12px;font-family:inherit;transition:border-color .15s,box-shadow .15s;display:flex}.proto-model-trigger:hover,.proto-model-trigger.open{border-color:var(--mr-accent);box-shadow:0 0 0 3px #2563eb1f}.proto-model-trigger-text{flex-direction:column;flex:1;gap:2px;min-width:0;display:flex}.proto-model-trigger-kicker{color:var(--mr-muted);text-transform:uppercase;letter-spacing:.04em;font-size:11px;font-weight:600}.proto-model-trigger-value{white-space:nowrap;text-overflow:ellipsis;font-size:14px;font-weight:600;overflow:hidden}.proto-model-change{color:var(--mr-accent);white-space:nowrap;font-size:12px;font-weight:600}.proto-model-chevron{color:var(--mr-muted);font-size:12px}.proto-model-icon-wrap{border:1px solid var(--mr-border);background:var(--mr-surface);border-radius:6px;flex-shrink:0;justify-content:center;align-items:center;width:28px;height:28px;display:flex}.proto-model-backdrop{z-index:40;cursor:default;background:#0f172a33;border:none;position:fixed;inset:0}.proto-model-menu{z-index:50;background:var(--mr-surface);border:1px solid var(--mr-border);border-radius:10px;width:min(380px,100vw - 32px);max-height:min(480px,65vh);position:absolute;top:calc(100% + 8px);left:0;overflow-y:auto;box-shadow:0 16px 40px #0f172a24}.proto-model-menu-head{letter-spacing:.06em;text-transform:uppercase;color:var(--mr-muted);border-bottom:1px solid var(--mr-border);background:var(--mr-bg);padding:12px 14px 8px;font-size:11px;font-weight:700}.proto-model-back{border:none;border-bottom:1px solid var(--mr-border);background:var(--mr-bg);text-align:left;width:100%;color:var(--mr-accent);cursor:pointer;padding:10px 14px;font-family:inherit;font-size:13px;font-weight:600;display:block}.proto-model-provider,.proto-model-option{border:none;border-bottom:1px solid var(--mr-border);cursor:pointer;text-align:left;background:0 0;align-items:center;gap:12px;width:100%;padding:12px 14px;font-family:inherit;display:flex}.proto-model-provider:hover,.proto-model-option:hover{background:var(--mr-bg)}.proto-model-option.active{background:var(--mr-accent-soft)}.proto-model-provider-label{color:var(--mr-fg);flex:1;font-size:14px;font-weight:600}.proto-model-provider-count{color:var(--mr-muted);margin-top:2px;font-size:12px;font-weight:400;display:block}.proto-model-option-label{flex:1;font-size:14px;font-weight:500}.proto-model-option-desc{color:var(--mr-muted);margin-top:2px;font-size:12px;font-weight:400;display:block}.proto-model-check{color:var(--mr-accent);font-size:14px;font-weight:700}@keyframes proto-fade{0%{opacity:0;transform:translateY(4px)}to{opacity:1;transform:translateY(0)}}@keyframes proto-pulse{0%,80%,to{opacity:.35}40%{opacity:1}}