:root{--ui-font-sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;--ui-font-mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace;--ui-text-xs: .75rem;--ui-text-sm: .875rem;--ui-text-base: 1rem;--ui-text-md: 1.125rem;--ui-text-lg: 1.25rem;--ui-text-xl: 1.5rem;--ui-text-2xl: 1.875rem;--ui-text-3xl: clamp(1.9rem, 4vw, 2.5rem);--ui-text-display: clamp(2.5rem, 6vw, 3.5rem);--ui-leading-tight: 1.2;--ui-leading-snug: 1.4;--ui-leading-normal: 1.65;--ui-tracking-tight: -.02em;--ui-tracking-normal: 0;--ui-tracking-wide: .08em;--ui-weight-normal: 400;--ui-weight-medium: 500;--ui-weight-semibold: 600;--ui-space-0: 0;--ui-space-1: 4px;--ui-space-2: 8px;--ui-space-3: 12px;--ui-space-4: 16px;--ui-space-5: 24px;--ui-space-6: 32px;--ui-space-7: 48px;--ui-space-8: 64px;--ui-space-9: 96px;--ui-space-10: 128px;--ui-radius-sm: 4px;--ui-radius-md: 8px;--ui-radius-lg: 12px;--ui-radius-xl: 16px;--ui-radius-full: 9999px;--ui-measure: 44rem;--ui-width-wide: 980px;--ui-width-cap: 1100px;--ui-motion-fast: .15s;--ui-motion-normal: .25s;--ui-motion-slow: .4s;--ui-ease: ease;--ui-ease-out: cubic-bezier(.16, 1, .3, 1);--ui-shadow-sm: 0 2px 4px rgba(0, 0, 0, .3);--ui-shadow-md: 0 4px 12px rgba(0, 0, 0, .4);--ui-shadow-lg: 0 8px 24px rgba(0, 0, 0, .5);--ui-header-height: 80px;--ui-sidebar-width: 280px;--ui-input-height: 56px;--ui-focus-ring: 0 0 0 3px rgba(var(--ui-accent-rgb), .4)}:root,[data-theme=cura]{color-scheme:dark;--ui-surface: #0a0f14;--ui-surface-raised: #111820;--ui-surface-sunken: #16202a;--ui-surface-elevated: #1a2733;--ui-surface-hover: #20303d;--ui-ink: #e8eaed;--ui-ink-secondary: #9aa4ad;--ui-ink-muted: #64707a;--ui-ink-on-accent: #ffffff;--ui-ink-heading: #ffffff;--ui-accent: #0891b2;--ui-accent-rgb: 8, 145, 178;--ui-accent-bright: #06b6d4;--ui-accent-dim: #0e7490;--ui-accent-secondary: #5b7a95;--ui-accent-secondary-dim: #3f566b;--ui-line: rgba(255, 255, 255, .1);--ui-line-strong: rgba(255, 255, 255, .25);--ui-line-subtle: 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#ffffff)}.ui-focusable:focus-visible,a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{outline:none;box-shadow:var(--ui-focus-ring);border-radius:var(--ui-radius-sm)}.ui-sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}:root{--bg-primary: var(--ui-surface);--bg-secondary: var(--ui-surface-raised);--bg-tertiary: var(--ui-surface-sunken);--bg-elevated: var(--ui-surface-elevated);--bg-hover: var(--ui-surface-hover);--accent-gold: var(--ui-accent);--accent-gold-rgb: var(--ui-accent-rgb);--accent-gold-bright: var(--ui-accent-bright);--accent-gold-dim: var(--ui-accent-dim);--accent-purple: var(--ui-accent-secondary);--accent-purple-dim: var(--ui-accent-secondary-dim);--text-primary: var(--ui-ink);--text-secondary: var(--ui-ink-secondary);--text-muted: var(--ui-ink-muted);--text-accent: var(--accent-gold);--font-mono: var(--ui-font-mono);--border-subtle: 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button+button{margin-top:var(--spacing-sm)}.login-method-tabs{display:flex;flex-wrap:wrap;gap:var(--spacing-xs);margin-bottom:var(--spacing-lg);padding:var(--spacing-xs);background:var(--bg-tertiary);border-radius:var(--radius-md)}.login-tab{flex:1 1 calc(50% - var(--spacing-xs));min-width:0;display:flex;align-items:center;justify-content:center;gap:var(--spacing-xs);padding:var(--spacing-sm) var(--spacing-xs);background:transparent;border:none;border-radius:var(--radius-sm);color:var(--text-secondary);font-size:.8125rem;font-weight:500;cursor:pointer;transition:all var(--transition-fast)}.login-tab .tab-icon{flex-shrink:0;width:14px;height:14px}.login-tab span{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.login-tab:hover{color:var(--text-primary);background:var(--bg-hover)}.login-tab.active{background:var(--accent-gold);color:var(--bg-primary);box-shadow:var(--shadow-sm)}.login-tab.active 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var(--transition-fast)}.btn-telegram:hover:not(:disabled){background:var(--bg-hover);border-color:var(--border-bright)}.btn-telegram:disabled{opacity:.7;cursor:not-allowed}.btn-telegram .telegram-icon{flex-shrink:0}.telegram-login-section{text-align:center}.login-description{color:var(--text-secondary);margin-bottom:var(--spacing-lg)}.waiting-indicator{display:flex;align-items:center;justify-content:center;gap:var(--spacing-sm);padding:var(--spacing-md);background:var(--bg-tertiary);border-radius:var(--radius-md);margin-top:var(--spacing-md)}.pulse-dot{width:10px;height:10px;background:var(--accent-gold);border-radius:50%;animation:pulse 1.5s ease-in-out infinite}@keyframes pulse{0%,to{transform:scale(1);opacity:1}50%{transform:scale(1.2);opacity:.7}}.settings-modal{max-width:480px;max-height:90vh;overflow-y:auto}.settings-content{display:flex;flex-direction:column;gap:var(--spacing-lg)}.settings-section{padding-bottom:var(--spacing-lg);border-bottom:1px solid var(--border-subtle)}.settings-section:last-of-type{border-bottom:none}.settings-section h3{color:var(--accent-gold);margin-bottom:var(--spacing-sm)}.section-description{font-size:.8125rem;color:var(--text-muted);margin-bottom:var(--spacing-md)}.setting-row{margin-bottom:var(--spacing-md)}.setting-row:last-child{margin-bottom:0}.slider-group{margin-bottom:var(--spacing-lg)}.slider-group:last-child{margin-bottom:0}.slider-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:var(--spacing-sm)}.slider-value{font-family:var(--font-mono);font-size:.875rem;color:var(--accent-gold);min-width:30px;text-align:right}.slider-labels{display:flex;justify-content:space-between;margin-top:var(--spacing-xs);font-size:.75rem;color:var(--text-muted)}.settings-actions{margin-top:var(--spacing-md)}.settings-actions .btn{width:100%}.avatar-settings{display:flex;align-items:center;gap:var(--spacing-md);margin-top:var(--spacing-sm)}.avatar-preview{flex-shrink:0;width:64px;height:64px;display:flex;align-items:center;justify-content:center}.avatar-preview .user-avatar-img,.avatar-preview .user-avatar-initials{width:64px;height:64px;font-size:1.4rem}.avatar-actions{display:flex;flex-direction:column;gap:var(--spacing-xs)}.avatar-actions .btn{justify-content:flex-start}.registered-emails-list{display:flex;flex-direction:column;gap:var(--spacing-sm);margin-bottom:var(--spacing-md);max-height:160px;overflow-y:auto}.registered-emails-list:empty:after{content:"No emails registered yet";color:var(--text-muted);font-size:.875rem;text-align:center;padding:var(--spacing-md)}.email-item{display:flex;align-items:center;justify-content:space-between;gap:var(--spacing-sm);padding:var(--spacing-sm) var(--spacing-md);background:var(--bg-tertiary);border-radius:var(--radius-md);border:1px solid var(--border-subtle)}.email-item-info{flex:1;min-width:0}.email-item-address{font-size:.875rem;color:var(--text-primary);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.email-item-label{display:inline-block;padding:2px 6px;margin-left:var(--spacing-xs);background:var(--accent-gold-dim);color:var(--bg-primary);font-size:.6875rem;font-weight:600;border-radius:var(--radius-sm);text-transform:uppercase;letter-spacing:.05em}.email-item-actions{display:flex;gap:var(--spacing-xs)}.email-item-actions .btn-icon{width:28px;height:28px}.email-item-actions .btn-icon:hover{color:#e74c3c}.add-email-form{margin-bottom:var(--spacing-md)}.add-email-form .form-row{display:flex;gap:var(--spacing-sm);margin-bottom:var(--spacing-sm)}.add-email-form .form-row input{flex:1}.add-email-form .form-row input:last-child{flex:0 0 120px}.loading-indicator{padding:var(--spacing-md);text-align:center;color:var(--text-muted);font-size:.875rem}.personas-list{display:flex;flex-direction:column;gap:var(--spacing-sm);margin-bottom:var(--spacing-md);max-height:300px;overflow-y:auto}.personas-empty{padding:var(--spacing-md);text-align:center;color:var(--text-muted);font-size:.875rem;font-style:italic}.persona-card{display:flex;align-items:flex-start;gap:var(--spacing-sm);padding:var(--spacing-sm) var(--spacing-md);background:var(--bg-tertiary);border-radius:var(--radius-md);border:1px solid var(--border-subtle);transition:all var(--transition-fast)}.persona-card:hover{border-color:var(--border-medium)}.persona-card.active{border-color:var(--accent-gold);background:var(--bg-elevated)}.persona-card.default{border-color:#0891b24d}.persona-card.default.active{border-color:var(--accent-gold)}.persona-card-info{flex:1;min-width:0}.persona-card-name{font-size:.9375rem;font-weight:600;color:var(--text-primary);display:flex;align-items:center;gap:var(--spacing-xs)}.persona-card-name .active-badge{font-size:.625rem;font-weight:700;padding:2px 6px;background:var(--accent-gold);color:var(--bg-primary);border-radius:var(--radius-sm);text-transform:uppercase;letter-spacing:.05em}.persona-card-instructions{font-size:.8125rem;color:var(--text-muted);margin-top:4px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}.persona-card-files{font-size:.75rem;color:var(--text-muted);margin-top:4px}.persona-card-actions{display:flex;gap:var(--spacing-xs);flex-shrink:0}.persona-card-actions .btn-icon{width:28px;height:28px}.persona-form{background:var(--bg-tertiary);border-radius:var(--radius-md);border:1px solid var(--border-medium);padding:var(--spacing-md);margin-top:var(--spacing-md);margin-bottom:var(--spacing-md)}.persona-form.hidden{display:none}.persona-form-header h4{font-size:1rem;font-weight:600;color:var(--accent-gold);margin-bottom:var(--spacing-md)}.persona-form-fields{display:flex;flex-direction:column;gap:var(--spacing-md)}.persona-form .form-group{display:flex;flex-direction:column;gap:var(--spacing-xs)}.persona-form .form-group label{font-size:.8125rem;font-weight:500;color:var(--text-secondary)}.persona-form .hint-inline{font-weight:400;color:var(--text-muted);font-size:.75rem}.persona-form textarea{min-height:100px;resize:vertical}.persona-files-list{display:flex;flex-wrap:wrap;gap:var(--spacing-xs);margin-bottom:var(--spacing-xs)}.persona-file-item{display:flex;align-items:center;gap:6px;padding:4px 8px;background:var(--bg-elevated);border:1px solid var(--border-subtle);border-radius:var(--radius-sm);font-size:.75rem;color:var(--text-secondary)}.persona-file-item button{padding:0;background:none;border:none;color:var(--text-muted);cursor:pointer;line-height:1}.persona-file-item button:hover{color:#e74c3c}.persona-form-actions{display:flex;gap:var(--spacing-sm);margin-top:var(--spacing-md)}.btn-xs{padding:6px 10px;font-size:.75rem}.app-header{display:flex;align-items:center;gap:var(--spacing-md);height:var(--header-height);padding:0 var(--spacing-md);background:var(--bg-secondary);border-bottom:1px solid var(--border-subtle);flex-shrink:0}.header-title{display:flex;align-items:center;gap:var(--spacing-sm);font-size:1.25rem;font-weight:600;letter-spacing:.02em;color:var(--text-primary);flex:1}.header-logo{height:34px;width:auto;filter:drop-shadow(0 0 8px rgba(8,145,178,.45));-webkit-user-select:none;user-select:none;-webkit-user-drag:none;pointer-events:none;display:block}.header-wordmark{color:var(--text-primary)}.header-actions{margin-left:auto;display:flex;align-items:center;gap:var(--spacing-xs)}.header-persona-name{font-size:1.125rem;font-weight:600;letter-spacing:.02em;color:var(--accent-gold);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.header-persona-name:empty{display:none}.app-container{display:flex;flex:1;overflow:hidden}.sidebar{width:var(--sidebar-width);background:var(--bg-secondary);border-right:1px solid var(--border-subtle);display:flex;flex-direction:column;flex-shrink:0;transition:transform var(--transition-normal)}.sidebar.collapsed{transform:translate(-100%);width:0}.sidebar-header{display:flex;align-items:center;justify-content:space-between;padding:var(--spacing-md);border-bottom:1px solid var(--border-subtle)}.sidebar-header h2{font-family:Inter,sans-serif;font-size:.875rem;font-weight:600;text-transform:uppercase;letter-spacing:.05em;color:var(--text-secondary)}.conversations-list{flex:1;overflow-y:auto;padding:var(--spacing-sm)}.conversation-group{margin-bottom:var(--spacing-md)}.conversation-group-title{padding:var(--spacing-xs) var(--spacing-sm);font-size:.75rem;font-weight:600;text-transform:uppercase;letter-spacing:.05em;color:var(--text-muted)}.conversation-item{display:flex;align-items:center;gap:var(--spacing-sm);padding:var(--spacing-sm) var(--spacing-md);border-radius:var(--radius-md);cursor:pointer;transition:all var(--transition-fast);color:var(--text-secondary)}.conversation-item:hover{background:var(--bg-tertiary);color:var(--text-primary)}.conversation-item.active{background:var(--bg-elevated);color:var(--text-primary);border-left:2px solid var(--accent-gold)}.conversation-title{flex:1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;font-size:.875rem}.conversation-delete{opacity:0;transition:opacity var(--transition-fast)}.conversation-item:hover .conversation-delete{opacity:1}.chat-area{flex:1;display:flex;flex-direction:column;overflow:hidden;background:var(--bg-primary)}.messages{flex:1;overflow-y:auto;padding:var(--spacing-lg);display:flex;flex-direction:column;gap:var(--spacing-md);scrollbar-width:thin;scrollbar-color:var(--border-medium) transparent}.messages::-webkit-scrollbar{width:6px}.messages::-webkit-scrollbar-track{background:transparent}.messages::-webkit-scrollbar-thumb{background:var(--border-medium);border-radius:3px}.messages::-webkit-scrollbar-thumb:hover{background:var(--accent-gold-dim)}.welcome-message{display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;height:100%;padding:var(--spacing-xl);color:var(--text-muted)}.welcome-message .welcome-logo{filter:drop-shadow(0 0 24px rgba(8,145,178,.4));opacity:.9;margin-bottom:var(--spacing-xl)}.welcome-message h2{font-size:1.5rem;color:var(--text-secondary);margin-bottom:var(--spacing-sm)}.welcome-message p{font-size:1rem;font-style:italic}.message{display:flex;gap:var(--spacing-md);max-width:85%;animation:messageSlideIn .3s ease;align-items:center}@keyframes messageSlideIn{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}.message.user{align-self:flex-end;flex-direction:row-reverse}.message-avatar{width:54px;height:54px;border-radius:var(--radius-md);background:transparent;display:flex;align-items:center;justify-content:center;flex-shrink:0;font-size:.75rem;font-weight:600;color:var(--text-secondary)}.message.assistant .message-avatar{margin-left:8px}.message.assistant .message-avatar{background:transparent;color:var(--text-primary)}.message-avatar .avatar-logo{filter:none}.message-avatar .avatar-logo-glow{filter:drop-shadow(0 0 10px rgba(8,145,178,.45))}.message.user .message-avatar{width:48px;height:48px;margin-right:8px}.user-avatar-img{width:48px;height:48px;border-radius:50%;object-fit:cover;border:2px solid var(--border-medium)}.user-avatar-initials{width:48px;height:48px;border-radius:50%;background:var(--bg-tertiary);border:2px solid var(--border-medium);display:flex;align-items:center;justify-content:center;font-size:1rem;font-weight:600;color:var(--text-secondary);font-family:Inter,sans-serif;letter-spacing:.02em}.message-content{background:var(--bg-secondary);padding:var(--spacing-md);border-radius:var(--radius-lg);border:1px solid var(--border-subtle)}.message.user .message-content{background:var(--bg-tertiary);border-color:var(--border-medium)}.message.assistant .message-content{border-left:2px solid var(--accent-gold)}.message-text{font-size:.9375rem;line-height:1.6;white-space:pre-wrap;word-wrap:break-word}.message-text p{margin-bottom:var(--spacing-sm)}.message-text p:last-child{margin-bottom:0}.message-meta{display:flex;align-items:center;gap:var(--spacing-sm);margin-top:var(--spacing-sm);font-size:.75rem;color:var(--text-muted)}.message-image{max-width:100%;max-height:400px;border-radius:var(--radius-md);margin-top:var(--spacing-sm)}.message-attachments{display:flex;flex-direction:column;gap:var(--spacing-sm);margin-top:var(--spacing-md)}.attachment-inline-image{display:block;text-decoration:none;border-radius:var(--radius-md);overflow:hidden;transition:opacity var(--transition-fast)}.attachment-inline-image:hover{opacity:.9}.attachment-image-label{display:block;font-size:.75rem;color:var(--text-muted);padding:var(--spacing-xs) 0;text-align:center}.attachment-card{display:flex;align-items:center;gap:var(--spacing-sm);padding:var(--spacing-sm) var(--spacing-md);background:var(--bg-tertiary);border:1px solid var(--border-subtle);border-radius:var(--radius-md);text-decoration:none;color:var(--text-primary);transition:all var(--transition-fast)}.attachment-card:hover{border-color:var(--accent-gold-dim);background:var(--bg-elevated);box-shadow:var(--shadow-sm)}.attachment-card-icon{display:flex;align-items:center;justify-content:center;width:36px;height:36px;background:var(--bg-elevated);border-radius:var(--radius-sm);font-size:.625rem;font-weight:700;color:var(--accent-gold);text-transform:uppercase;letter-spacing:.05em;flex-shrink:0}.attachment-card-info{display:flex;flex-direction:column;flex:1;min-width:0}.attachment-card-name{font-size:.8125rem;font-weight:500;color:var(--text-primary);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.attachment-card-type{font-size:.6875rem;color:var(--text-muted);text-transform:capitalize}.attachment-card-download{flex-shrink:0;color:var(--text-muted);transition:color var(--transition-fast)}.attachment-card:hover .attachment-card-download{color:var(--accent-gold)}.typing-indicator{display:flex;gap:4px;padding:var(--spacing-sm)}.typing-indicator span{width:8px;height:8px;background:var(--accent-gold);border-radius:50%;animation:typingBounce 1.4s infinite ease-in-out}.typing-indicator span:nth-child(1){animation-delay:0s}.typing-indicator span:nth-child(2){animation-delay:.2s}.typing-indicator span:nth-child(3){animation-delay:.4s}@keyframes typingBounce{0%,60%,to{transform:translateY(0);opacity:.4}30%{transform:translateY(-6px);opacity:1}}.input-area{padding:var(--spacing-md);background:transparent;border-top:1px solid var(--border-subtle)}.input-container{display:flex;align-items:flex-end;gap:var(--spacing-sm);background:var(--bg-tertiary);border:1px solid var(--border-subtle);border-radius:var(--radius-lg);padding:var(--spacing-sm);transition:border-color var(--transition-fast)}.input-container:focus-within{border-color:var(--accent-gold)}.input-container textarea{flex:1;background:transparent;border:none;resize:none;min-height:24px;max-height:150px;padding:var(--spacing-xs);font-size:.9375rem;line-height:1.5}.input-container textarea:focus{outline:none;box-shadow:none}.attachments-preview{display:flex;gap:var(--spacing-sm);padding:var(--spacing-sm);flex-wrap:wrap;max-height:200px;overflow-y:auto}.attachment-item{position:relative;min-width:60px;height:60px;border-radius:var(--radius-md);overflow:hidden;background:var(--bg-elevated);border:1px solid var(--border-subtle);display:flex;flex-direction:column;align-items:center;justify-content:center;transition:all var(--transition-fast)}.attachment-item:hover{border-color:var(--border-medium);box-shadow:var(--shadow-sm)}.attachment-item img{width:100%;height:100%;object-fit:cover}.attachment-icon{font-size:.625rem;font-weight:700;color:var(--accent-gold);background:var(--bg-tertiary);padding:4px 8px;border-radius:var(--radius-sm);text-transform:uppercase;letter-spacing:.05em}.attachment-name{font-size:.625rem;color:var(--text-muted);margin-top:4px;max-width:54px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;text-align:center}.attachment-remove{position:absolute;top:2px;right:2px;width:18px;height:18px;background:#000000b3;border:none;border-radius:50%;color:#fff;font-size:14px;font-weight:500;cursor:pointer;display:flex;align-items:center;justify-content:center;opacity:0;transition:all var(--transition-fast)}.attachment-item:hover .attachment-remove{opacity:1}.attachment-remove:hover{background:#e74c3c;transform:scale(1.1)}.input-footer{display:flex;align-items:center;justify-content:center;gap:var(--spacing-sm);margin-top:var(--spacing-xs);padding-left:var(--spacing-sm)}.provider-indicator{font-size:.75rem;font-weight:500;text-transform:uppercase;letter-spacing:.05em;color:var(--text-muted);padding:2px 6px;background:var(--bg-tertiary);border-radius:var(--radius-sm)}.model-indicator{font-size:.75rem;color:var(--text-muted)}.input-selector{position:relative}.selector-btn{display:flex;align-items:center;gap:4px;background:transparent;border:1px solid var(--border-subtle);border-radius:var(--radius-sm);padding:4px 8px;color:var(--accent-gold);font-size:.75rem;font-weight:500;cursor:pointer;transition:all var(--transition-fast)}.selector-btn:hover{background:var(--bg-tertiary);border-color:var(--border-medium)}.selector-chevron{stroke:currentColor;transition:transform var(--transition-fast)}.selector-btn[aria-expanded=true] .selector-chevron{transform:rotate(180deg)}.selector-dropdown{position:absolute;bottom:calc(100% + 4px);left:0;background:var(--bg-elevated);border:1px solid var(--border-medium);border-radius:var(--radius-md);min-width:180px;max-height:200px;overflow-y:auto;z-index:100;box-shadow:var(--shadow-md)}.persona-option{padding:8px 12px;cursor:pointer;font-size:.8125rem;color:var(--text-secondary);transition:all var(--transition-fast)}.persona-option:hover{background:var(--bg-hover);color:var(--text-primary)}.persona-option.active{color:var(--accent-gold)}.tier-toggle{display:flex;background:var(--bg-tertiary);border-radius:var(--radius-sm);overflow:hidden;border:1px solid var(--border-subtle)}.tier-btn{padding:4px 10px;background:transparent;border:none;color:var(--text-muted);cursor:pointer;font-size:.7rem;font-weight:600;text-transform:uppercase;letter-spacing:.03em;transition:all var(--transition-fast)}.tier-btn:hover:not(.active){color:var(--text-secondary);background:var(--bg-hover)}.tier-btn.active{background:var(--accent-gold);color:var(--bg-primary)}.chat-area{position:relative}.chat-area.drag-over:before{content:"";position:absolute;inset:0;background:#0a0a0fd9;z-index:50;pointer-events:none}.chat-area.drag-over:after{content:"Drop files here";position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);z-index:51;font-size:1.5rem;font-weight:600;letter-spacing:.1em;color:var(--accent-gold);padding:var(--spacing-xl) var(--spacing-xl);border:2px dashed var(--accent-gold);border-radius:var(--radius-xl);background:var(--bg-secondary);box-shadow:var(--shadow-glow-strong);pointer-events:none}::-webkit-scrollbar{width:8px;height:8px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:var(--bg-elevated);border-radius:var(--radius-full)}::-webkit-scrollbar-thumb:hover{background:var(--bg-hover)}@supports (height: 100dvh){#app{height:100dvh}}@supports not (height: 100dvh){#app{height:100vh;height:-webkit-fill-available}}body{padding-top:env(safe-area-inset-top);padding-left:env(safe-area-inset-left);padding-right:env(safe-area-inset-right)}.input-area{padding-bottom:calc(var(--spacing-md) + env(safe-area-inset-bottom))}@media(max-width:768px){body{overflow:hidden;overscroll-behavior:none;position:fixed;width:100%}#app{height:var(--app-height, 100dvh);overflow:hidden;overscroll-behavior:none}:root{--header-height: 56px}.app-header{padding:0 var(--spacing-sm)}.header-logo{height:36px}.header-title{font-size:1.125rem}.header-title span{display:none}.header-persona-name{font-size:.875rem}.header-actions .btn-icon{width:34px;height:34px}.sidebar{position:fixed;left:0;top:var(--header-height);bottom:0;width:280px;max-width:85vw;z-index:200;background:var(--bg-secondary);-webkit-backdrop-filter:none;backdrop-filter:none;transform:translate(-100%);box-shadow:var(--shadow-lg);transition:transform var(--transition-normal)}.sidebar.open{transform:translate(0)}.sidebar.open:before{content:"";position:fixed;inset:0 0 0 280px;background:#000000b3;z-index:-1}.message-avatar,.message-avatar .avatar-logo,.message-avatar .avatar-logo-glow{width:40px;height:40px}.app-container{flex-direction:column}.chat-area{width:100%;max-height:var(--app-height, 100dvh);min-width:0}.messages{padding:var(--spacing-md);min-height:0;flex:1;overscroll-behavior-y:contain;-webkit-overflow-scrolling:touch}.message{max-width:95%}.input-area{padding:var(--spacing-sm);padding-bottom:calc(var(--spacing-sm) + env(safe-area-inset-bottom));flex-shrink:0}.input-container{padding:var(--spacing-xs)}input[type=text],input[type=email],input[type=password],textarea,select,.input-container textarea{font-size:16px}.input-footer{padding:var(--spacing-xs) var(--spacing-sm);font-size:.75rem}.modal-content{margin:var(--spacing-sm);max-height:calc(100dvh - 32px);max-height:calc(100vh - 32px);overflow-y:auto}.login-modal{max-width:100%}.settings-modal{max-height:calc(100dvh - 64px);max-height:calc(100vh - 64px)}}@media(max-width:380px){.login-tab{font-size:.75rem;padding:var(--spacing-xs)}.login-tab 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.modal-close:hover{color:var(--text-primary)}.twofa-modal .modal-body{padding:var(--spacing-lg);text-align:center}.twofa-modal .modal-body h3{margin-bottom:var(--spacing-sm);color:var(--text-primary)}.twofa-modal .modal-body p{color:var(--text-secondary);margin-bottom:var(--spacing-md)}.twofa-modal .modal-footer{display:flex;gap:var(--spacing-md);padding:var(--spacing-lg);padding-top:0}.twofa-modal .modal-footer .btn{flex:1}.twofa-icon{font-size:3rem;margin-bottom:var(--spacing-md)}.twofa-icon.success{color:#2ecc71}.twofa-benefits{list-style:none;text-align:left;background:var(--bg-tertiary);padding:var(--spacing-md);border-radius:var(--radius-md);margin-top:var(--spacing-md)}.twofa-benefits li{padding:var(--spacing-xs) 0;color:var(--text-secondary);font-size:.9rem}.qr-container{display:flex;justify-content:center;margin:var(--spacing-lg) 0}.qr-code{background:#fff;padding:var(--spacing-md);border-radius:var(--radius-md)}.qr-code img{display:block}.qr-manual{font-size:.875rem;color:var(--text-muted)}.btn-link{background:none;border:none;color:var(--accent-gold);cursor:pointer;text-decoration:underline;font-size:inherit;padding:0}.btn-link:hover{color:var(--accent-gold-bright)}.secret-display{display:flex;align-items:center;justify-content:center;gap:var(--spacing-sm);margin-top:var(--spacing-md);padding:var(--spacing-sm) var(--spacing-md);background:var(--bg-tertiary);border-radius:var(--radius-md)}.secret-display code{font-size:.875rem;letter-spacing:.1em}.verify-input-container{display:flex;justify-content:center;margin:var(--spacing-lg) 0}.verify-input{width:200px;text-align:center;font-size:1.75rem;font-family:var(--font-mono);letter-spacing:.5em;padding:var(--spacing-md)}.error-message{color:#e74c3c;font-size:.875rem;margin-top:var(--spacing-sm)}.backup-codes{background:var(--bg-tertiary);padding:var(--spacing-md);border-radius:var(--radius-md);margin-top:var(--spacing-lg);text-align:left}.backup-codes 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