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transparent}.chat-empty{display:flex;flex-direction:column;align-items:flex-start;gap:var(--space-2);padding:var(--space-5) var(--space-1) var(--space-2);animation:mb-fade-up var(--duration-mid) var(--ease-out) both}.chat-empty-icon{display:grid;place-items:center;width:44px;height:44px;margin-bottom:4px;border-radius:12px;background:var(--color-accent-soft);color:var(--color-accent)}.chat-empty-title{margin:0;color:var(--color-ink);font:650 .95rem/1.3 var(--font-display);letter-spacing:-.02em}.chat-empty-hint{margin:0 0 var(--space-1);color:var(--color-ink-muted);font:400 .8rem/1.45 var(--font-ui)}.chat-suggestions{display:flex;flex-direction:column;gap:var(--space-1);width:100%;margin-top:4px}.chat-suggestion{width:100%;padding:var(--space-2) var(--space-3);border:1px solid var(--color-stone-200);border-radius:var(--radius-md);background:var(--color-paper-elevated);color:var(--color-ink);font:500 .8rem/1.3 var(--font-ui);text-align:left;cursor:pointer;transition:background var(--duration-fast) var(--ease-out),border-color var(--duration-fast) var(--ease-out),color var(--duration-fast) var(--ease-out)}.chat-suggestion:hover:not(:disabled){border-color:color-mix(in srgb,var(--color-accent) 35%,var(--color-stone-200));background:var(--color-accent-soft);color:var(--color-accent)}.chat-suggestion:focus-visible{outline:2px solid var(--color-accent);outline-offset:1px}.chat-suggestion:disabled{opacity:.45;cursor:not-allowed}.chat-message{display:flex;gap:var(--space-2);align-items:flex-start;max-width:92%;animation:mb-fade-in var(--duration-fast) var(--ease-out) both}.chat-message--user{align-self:flex-end}.chat-message--bot{align-self:flex-start}.chat-avatar{width:28px;height:28px;border-radius:50%;display:flex;align-items:center;justify-content:center;flex-shrink:0;color:var(--color-paper-elevated)}.chat-avatar--bot{background:var(--color-accent)}.chat-avatar--user{background:var(--color-ink)}.chat-bubble{padding:var(--space-3) var(--space-4);border-radius:12px;font-size:14px;line-height:1.45;max-width:100%;overflow:auto}.chat-bubble--user{background:var(--color-ink);color:var(--color-paper);border-bottom-right-radius:4px}.chat-bubble--bot{background:var(--color-paper);color:var(--color-ink);border:1px solid var(--color-stone-200);border-bottom-left-radius:4px}.chat-plain{white-space:pre-wrap}.chat-digest-section{padding:0 0 var(--space-2)}.chat-input-area{padding:var(--space-3) 0 0;border-top:1px solid var(--color-border, var(--color-stone-200));display:flex;gap:var(--space-2);background:var(--color-paper-elevated)}.chat-presets-menu{max-height:320px;overflow-y:auto}.chat-presets-empty{padding:var(--space-2) var(--space-3);font-size:12px;color:var(--color-muted-foreground, var(--color-ink-muted))}.chat-preset-row{display:flex;align-items:center}.chat-preset-item{flex:1;min-width:0;flex-direction:column;align-items:flex-start;gap:1px}.chat-preset-name{font-weight:500;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;max-width:100%}.chat-preset-preview{font-size:11px;color:var(--color-muted-foreground, var(--color-ink-muted));overflow:hidden;text-overflow:ellipsis;white-space:nowrap;max-width:100%}.chat-preset-delete{display:inline-flex;align-items:center;justify-content:center;width:32px;height:32px;margin-right:4px;border:none;border-radius:6px;background:transparent;color:var(--color-muted-foreground, var(--color-ink-muted));cursor:pointer;transition:color .15s ease}.chat-preset-delete:hover{color:var(--color-danger, #b91c1c)}.chat-presets-hint{font-size:12px;color:var(--color-muted-foreground, var(--color-ink-muted))}.chat-presets-hint code{font-family:var(--font-mono, ui-monospace, SFMono-Regular, Menlo, monospace);background:var(--color-accent-soft, rgba(79, 70, 229, .1));padding:1px var(--space-1);border-radius:4px}.chat-presets-actions{display:flex;justify-content:flex-end;gap:var(--space-2)}.chat-memory-btn.is-active,.chat-memory-btn.is-active:hover{color:var(--color-accent)}.chat-memory-hint{font:.8rem/1.5 var(--font-ui);color:var(--color-ink-muted);margin:var(--space-2) 0 var(--space-3)}.chat-memory-textarea{width:100%;min-height:120px;padding:var(--space-3);font:.85rem/1.5 var(--font-ui);color:var(--color-ink);background:var(--color-paper);border:1px solid var(--color-stone-200);border-radius:var(--radius-md);resize:vertical;outline:none;transition:border-color var(--duration-fast) var(--ease-out)}.chat-memory-textarea:focus{border-color:var(--color-accent)}.chat-memory-actions{display:flex;justify-content:flex-end;gap:var(--space-2);margin-top:12px}.chat-message-actions{display:flex;gap:var(--space-1);opacity:0;transition:opacity var(--duration-fast) var(--ease-out)}.chat-message:hover .chat-message-actions{opacity:1}.chat-action-icon{display:inline-flex;align-items:center;justify-content:center;width:24px;height:24px;padding:0;border:none;border-radius:var(--radius-sm);background:transparent;color:var(--color-ink-muted);cursor:pointer;transition:background var(--duration-fast) var(--ease-out),color var(--duration-fast) var(--ease-out)}.chat-action-icon:hover{background:var(--color-stone-100);color:var(--color-ink)}.chat-action-icon:disabled{opacity:.4;cursor:not-allowed}.chat-edit-area{display:flex;flex-direction:column;gap:var(--space-1);width:100%}.chat-edit-textarea{width:100%;min-height:60px;padding:var(--space-2);font:.85rem/1.5 var(--font-ui);color:var(--color-ink);background:var(--color-paper);border:1px solid var(--color-stone-200);border-radius:var(--radius-sm);resize:vertical;outline:none;transition:border-color var(--duration-fast) var(--ease-out)}.chat-edit-textarea:focus{border-color:var(--color-accent)}.chat-edit-actions{display:flex;gap:var(--space-1);justify-content:flex-end}.chat-action-btn{padding:var(--space-1) var(--space-3);font:.75rem/1 var(--font-ui);color:var(--color-ink);background:var(--color-stone-100);border:1px solid var(--color-stone-200);border-radius:var(--radius-sm);cursor:pointer;transition:background var(--duration-fast) var(--ease-out)}.chat-action-btn:hover:not(:disabled){background:var(--color-stone-200)}.chat-action-btn:disabled{opacity:.4;cursor:not-allowed}.auth-page{display:flex;align-items:center;justify-content:center;min-height:100dvh;background:var(--color-paper);padding:20px}.auth-card{width:100%;max-width:400px;padding:36px 28px;background:var(--color-paper-elevated);border:1px solid var(--color-stone-200);border-radius:var(--radius-lg);box-shadow:var(--shadow-md);animation:mb-fade-up .4s var(--ease-out)}.auth-brand{display:flex;flex-direction:column;align-items:center;gap:8px;margin-bottom:28px}.auth-brand-mark{display:grid;place-items:center;width:44px;height:44px;border-radius:12px;background:var(--color-accent);color:var(--color-paper);font:700 20px/1 var(--font-display);box-shadow:var(--shadow-accent)}.auth-title{font:600 22px/1.2 var(--font-display);color:var(--color-ink);margin:0}.auth-subtitle{font:400 14px/1.4 var(--font-ui);color:var(--color-ink-muted);margin:0;text-align:center}.auth-form{display:flex;flex-direction:column;gap:16px}.auth-field{display:flex;flex-direction:column;gap:6px}.auth-label{font:500 13px/1.3 var(--font-ui);color:var(--color-ink)}.auth-error{font:400 13px/1.4 var(--font-ui);color:var(--color-danger);margin:0;padding:8px 12px;border-radius:var(--radius-sm);background:var(--color-danger-soft)}.auth-submit{width:100%!important;margin-top:4px;font-size:15px;font-weight:600}.auth-switch{margin-top:20px;text-align:center;font:400 13px/1.4 var(--font-ui);color:var(--color-ink-muted)}.auth-switch-btn{background:none;border:none;padding:0;font:600 13px/1.4 var(--font-ui);color:var(--color-accent);cursor:pointer}.auth-switch-btn:hover{text-decoration:underline}.auth-password-wrapper{position:relative;display:flex;align-items:center}.auth-password-wrapper .auth-password-toggle{position:absolute;right:8px;display:grid;place-items:center;width:32px;height:32px;border:0;border-radius:var(--radius-sm);background:transparent;color:var(--color-ink-muted);cursor:pointer}.auth-password-wrapper .auth-password-toggle:hover{color:var(--color-ink);background:var(--color-stone-100)}.auth-password-wrapper .auth-password-toggle:focus-visible{outline:2px solid var(--color-accent);outline-offset:1px}.auth-password-wrapper input{padding-right:40px}