:root,:root[data-theme=light]{color-scheme:light;--primary-color: #ea0029;--hover-color: #c70024;--text-on-primary: #ffffff;--border-radius-standard: 12px;--sidebar-width: 276px;--chat-column-width: 880px;--bg-canvas: #f3f6fa;--bg-surface: #ffffff;--bg-elevated: #ffffff;--bg-subtle: #f7f9fc;--bg-muted: #edf2f7;--sidebar-bg: #f8fafc;--header-bg: rgba(255, 255, 255, .88);--composer-bg: rgba(255, 255, 255, .96);--bubble-assistant: #ffffff;--bubble-user: #eceef1;--text-primary: #182230;--text-secondary: #455468;--text-muted: #748094;--border: #dce3ec;--border-strong: #c8d2df;--accent: #ea0029;--accent-hover: #c70024;--accent-soft: #ffe4e9;--accent-text: #c70024;--text-on-accent: #ffffff;--danger: #dc2626;--danger-soft: #fee2e2;--success: #07855a;--focus-ring: #ea0029;--overlay: rgba(15, 23, 42, .56);--shadow-sm: 0 1px 2px rgba(15, 23, 42, .05);--shadow-md: 0 8px 24px rgba(15, 23, 42, .08);--shadow-lg: 0 20px 45px rgba(15, 23, 42, .14);--auth-page-background: radial-gradient(circle at 10% 14%, rgba(234, 0, 41, .12) 0%, transparent 34%), radial-gradient(circle at 90% 86%, rgba(199, 0, 36, .08) 0%, transparent 30%), linear-gradient(145deg, #f7f9fc 0%, #edf2f7 48%, #f8fafc 100%);--auth-panel-bg: rgba(255, 255, 255, .9);--auth-panel-border: rgba(255, 255, 255, .72);--auth-field-bg: #f3f6fa;--auth-field-focus: #ffffff;--auth-field-border: #c8d2df;--auth-disabled-bg: #e7ecf2;--auth-disabled-text: #7b8798;--icon-filter: brightness(0) saturate(100%) invert(27%) sepia(17%) saturate(673%) hue-rotate(177deg) brightness(91%) contrast(88%)}:root[data-theme=dark]{color-scheme:dark;--primary-color: #ea0029;--hover-color: #c70024;--text-on-primary: #ffffff;--bg-canvas: #0a0a0b;--bg-surface: #18181b;--bg-elevated: #18181b;--bg-subtle: #202024;--bg-muted: #242428;--sidebar-bg: #111113;--header-bg: #111113;--composer-bg: #242428;--bubble-assistant: #151517;--bubble-user: #27272a;--text-primary: #f4f4f5;--text-secondary: #a1a1aa;--text-muted: #71717a;--border: #303036;--border-strong: #3f3f46;--accent: #ea0029;--accent-hover: #c70024;--accent-soft: #3a0a12;--accent-text: #ff4d67;--text-on-accent: #ffffff;--danger: #ff8a94;--danger-soft: #35191e;--success: #61d6a4;--focus-ring: #ff4d67;--overlay: rgba(0, 0, 0, .76);--shadow-sm: 0 1px 2px rgba(0, 0, 0, .3);--shadow-md: 0 12px 30px rgba(0, 0, 0, .42);--shadow-lg: 0 24px 55px rgba(0, 0, 0, .58);--auth-page-background: radial-gradient(circle at 10% 14%, rgba(234, 0, 41, .14) 0%, transparent 34%), radial-gradient(circle at 90% 86%, rgba(255, 77, 103, .08) 0%, transparent 30%), linear-gradient(145deg, #0a0a0b 0%, #111113 48%, #0a0a0b 100%);--auth-panel-bg: #18181b;--auth-panel-border: #303036;--auth-field-bg: #242428;--auth-field-focus: #27272a;--auth-field-border: #303036;--auth-disabled-bg: #18181b;--auth-disabled-text: #71717a;--icon-filter: brightness(0) saturate(100%) 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