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#ffffff;--text-dark: #2c3e50;--border-color: #e0e0e0;--border-color-light: rgba(0, 0, 0, .06);--border-color-hover: #d0d0d0;--primary-color: #667eea;--primary-color-dark: #764ba2;--primary-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);--primary-gradient-hover: linear-gradient(135deg, #8b7eea 0%, #9b6ba2 100%);--primary-gradient-button: linear-gradient(135deg, #8B5CF6 0%, #7C3AED 100%);--primary-gradient-progress: linear-gradient(90deg, #8B5CF6 0%, #7C3AED 100%);--shadow-sm: 0 1px 3px rgba(0, 0, 0, .08);--shadow-md: 0 2px 6px rgba(0, 0, 0, .12);--shadow-lg: 0 2px 8px rgba(0, 0, 0, .1);--shadow-xl: 0 4px 12px rgba(0, 0, 0, .15);--shadow-primary: 0 2px 4px rgba(139, 92, 246, .3);--shadow-primary-hover: 0 3px 6px rgba(139, 92, 246, .4);--success-color: #4caf50;--error-color: #f44336;--warning-color: #ff9800;--info-color: #2196f3;--message-bg-sent: linear-gradient(135deg, #8B5CF6 0%, #a855f7 100%);--message-bg-received: #ffffff;--message-content-bg: rgba(255, 255, 255, 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transparent;--search-bar-bg: #f0f0f0;--search-bar-bg-focus: var(--bg-input-focus);--btn-primary-bg: linear-gradient(135deg, #667eea 0%, #764ba2 100%);--btn-primary-text: #ffffff;--btn-secondary-bg: #f5f5f5;--btn-secondary-text: #666666;--btn-secondary-border: #e0e0e0;--btn-danger-bg: #f44336;--btn-danger-text: #ffffff;--badge-primary-bg: #e8eaf6;--badge-primary-text: #667eea;--badge-success-bg: #e8f5e8;--badge-success-text: #4caf50;--badge-danger-bg: #ffebee;--badge-danger-text: #f44336;--badge-warning-bg: #fff3e0;--badge-warning-text: #ff9800;--accent-color: #667eea;--badge-bg: #e8e8e8;--badge-text: #888888;--shadow-color: rgba(102, 126, 234, .2);--scrollbar-thumb: rgba(0, 0, 0, .2);--scrollbar-track: transparent;--scrollbar-thumb-hover: rgba(102, 126, 234, .45);--scrollbar-thumb-active: rgba(102, 126, 234, .65)}.darker-theme{--bg-primary: #121212;--bg-secondary: #121212;--bg-tertiary: #0f0f0f;--bg-hover: #141414;--bg-active: #1a1a1a;--bg-overlay: rgba(18, 18, 18, .95);--bg-modal: #121212;--bg-input: #141414;--bg-input-focus: #1a1a1a;--text-primary: #ffffff;--text-secondary: #b3b3b3;--text-tertiary: #808080;--text-disabled: #666666;--text-inverse: #000000;--text-dark: #ffffff;--border-color: #1a1a1a;--border-color-light: rgba(255, 255, 255, .08);--border-color-hover: #242424;--primary-color: #8B5CF6;--primary-color-dark: #7C3AED;--primary-gradient: linear-gradient(135deg, #8B5CF6 0%, #7C3AED 100%);--primary-gradient-hover: linear-gradient(135deg, #9b6cee 0%, #8c4dfd 100%);--primary-gradient-button: linear-gradient(135deg, #9B6CF6 0%, #8C4DED 100%);--primary-gradient-progress: linear-gradient(90deg, #9B6CF6 0%, #8C4DED 100%);--shadow-sm: 0 1px 3px rgba(0, 0, 0, .5);--shadow-md: 0 2px 6px rgba(0, 0, 0, .6);--shadow-lg: 0 2px 8px rgba(0, 0, 0, .7);--shadow-xl: 0 4px 12px rgba(0, 0, 0, .8);--shadow-primary: 0 2px 4px rgba(139, 92, 246, .5);--shadow-primary-hover: 0 3px 6px rgba(139, 92, 246, .6);--success-color: #66bb6a;--error-color: #ef5350;--warning-color: #ffa726;--info-color: #42a5f5;--message-bg-sent: linear-gradient(135deg, #8B5CF6 0%, #7C3AED 100%);--message-bg-received: #0f0f0f;--message-content-bg: rgba(8, 8, 8, .95);--message-content-text: #ffffff;--message-text-sent: rgba(255, 255, 255, .95);--message-text-received: #ffffff;--message-time-sent: rgba(255, 255, 255, .6);--message-time-received: rgba(255, 255, 255, .4);--audio-bubble-bg: #0f0f0f;--audio-bubble-bg-sent: linear-gradient(135deg, #8B5CF6 0%, #7C3AED 100%);--audio-bubble-bg-received: #0f0f0f;--audio-bubble-bg-playing: #141414;--audio-bubble-bg-sent-playing: linear-gradient(135deg, #9b6cee 0%, #8c4dfd 100%);--audio-play-btn-bg: linear-gradient(135deg, #9B6CF6 0%, #8C4DED 100%);--audio-play-btn-bg-sent: rgba(255, 255, 255, .25);--audio-progress-bg: rgba(255, 255, 255, .12);--audio-progress-bg-sent: rgba(255, 255, 255, .25);--audio-progress-inner: linear-gradient(90deg, #9B6CF6 0%, #8C4DED 100%);--audio-progress-inner-sent: rgba(255, 255, 255, .9);--audio-duration-color: #b3b3b3;--audio-duration-color-sent: rgba(255, 255, 255, .95);--input-bg: #252525;--input-bg-focus: #2a2a2a;--input-text: #ffffff;--input-placeholder: #808080;--input-border: transparent;--search-bar-bg: #1a1a1a;--search-bar-bg-focus: #1f1f1f;--btn-primary-bg: linear-gradient(135deg, #8B5CF6 0%, #7C3AED 100%);--btn-primary-text: #ffffff;--btn-secondary-bg: #141414;--btn-secondary-text: #b3b3b3;--btn-secondary-border: #1a1a1a;--btn-danger-bg: #ef5350;--btn-danger-text: #ffffff;--badge-primary-bg: rgba(139, 92, 246, .2);--badge-primary-text: #a78bfa;--badge-success-bg: rgba(102, 187, 106, .2);--badge-success-text: #81c784;--badge-danger-bg: rgba(239, 83, 80, .2);--badge-danger-text: #ef5350;--badge-warning-bg: rgba(255, 167, 38, .2);--badge-warning-text: #ffa726;--accent-color: #8B5CF6;--badge-bg: rgba(255, 255, 255, .1);--badge-text: #b3b3b3;--shadow-color: rgba(139, 92, 246, .3);--scrollbar-thumb: rgba(255, 255, 255, .15);--scrollbar-track: transparent;--scrollbar-thumb-hover: rgba(139, 92, 246, .35);--scrollbar-thumb-active: rgba(139, 92, 246, .5)}@media (min-width: 1024px){:root{--font-size-base: 14px;--font-size-chat-bubble: 15px;--font-size-chat-meta: 12px;--font-size-chat-timestamp: 11px;--font-size-list-title: 16px;--font-size-list-subtitle: 14px;--font-size-list-meta: 12px;--font-size-nav-title: 16px;--font-size-nav-title-lg: 18px;--font-size-unread-badge: 11px;--list-item-height: 48px}}@media (min-width: 1440px){:root{--font-size-base: 14px;--font-size-chat-bubble: 15px;--font-size-chat-meta: 12px;--font-size-chat-timestamp: 11px;--font-size-list-title: 17px;--font-size-list-subtitle: 14px;--font-size-list-meta: 12px;--font-size-nav-title: 16px;--font-size-nav-title-lg: 18px;--font-size-unread-badge: 11px;--list-item-height: 48px}}*{transition:background-color .2s ease,color .2s ease,border-color .2s ease}img,svg,video,canvas{transition:none}