:root{--app-height: 100dvh;--accent: #2aabee;--danger: #ff6b6b;--shadow: 0 14px 36px rgba(10, 14, 20, .16);--text: #101418;--muted: #68717d;--app-bg: #f4f7fb;--surface: #ffffff;--surface-2: #eef3f8;--surface-3: #e4ebf2;--stroke: rgba(94, 112, 132, .18);--bubble-user: #2aabee;--bubble-assistant: #ffffff;--bubble-system: #edf3f8;--bubble-system-border: rgba(94, 112, 132, .22);--composer-gradient: linear-gradient(180deg, rgba(244, 247, 251, 0) 0%, rgba(244, 247, 251, .9) 22%, rgba(244, 247, 251, 1) 48%)}:root[data-theme=dark]{--text: #f5f7fa;--muted: #a4acb8;--app-bg: #0f0f10;--surface: #1c1c1e;--surface-2: #232326;--surface-3: #2b2b2e;--stroke: rgba(255, 255, 255, .1);--bubble-user: var(--tg-theme-button-color, #2aabee);--bubble-assistant: #2b2b2e;--bubble-system: #1f1f20;--bubble-system-border: #44484f;--composer-gradient: linear-gradient(180deg, rgba(15, 15, 16, 0) 0%, rgba(15, 15, 16, .92) 24%, rgba(15, 15, 16, 1) 52%);--shadow: 0 12px 28px rgba(0, 0, 0, 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