:root{--bg: var(--tg-theme-secondary-bg-color, #f2f3f5);--surface: var(--tg-theme-bg-color, #ffffff);--surface-sunken: var(--tg-theme-secondary-bg-color, #f2f3f5);--bottom-bar: var(--tg-theme-bottom-bar-bg-color, var(--tg-theme-bg-color, #ffffff));--text: var(--tg-theme-text-color, #0f0f0f);--text-secondary: var(--tg-theme-subtitle-text-color, #707579);--text-hint: var(--tg-theme-hint-color, #8e9297);--text-link: var(--tg-theme-link-color, #2f81d6);--text-destructive: var(--tg-theme-destructive-text-color, #df3f40);--separator: var(--tg-theme-section-separator-color, rgba(128, 128, 128, .22));--brand: #2f6b55;--on-brand: #ffffff;--accent: #2f6b55;--accent-wash: rgba(47, 107, 85, .1);--on-filled: #ffffff;--switch-knob: #ffffff;--switch-knob-shadow: 0 1px 3px rgba(0, 0, 0, .25);--backdrop: rgba(0, 0, 0, .4);--state-new: rgba(128, 128, 128, .32);--state-learning: var(--accent);--state-learning: color-mix(in srgb, var(--accent) 40%, var(--surface));--state-strengthening: var(--accent);--state-strengthening: color-mix(in srgb, var(--accent) 70%, var(--surface));--state-mastered: var(--accent);--state-track: rgba(128, 128, 128, .16);--bar-muted: rgba(128, 128, 128, .3);--warning-wash: var(--accent-wash);--warning-text: var(--accent);--danger-wash: rgba(223, 63, 64, .12);--zone-past: #96694c;--zone-present: var(--accent);--zone-future: #55678f;--radius-card: 14px;--radius-control: 10px;--radius-pill: 999px;--pad-screen: 16px;--tab-bar-height: 56px;--safe-top: env(safe-area-inset-top, 0px);--safe-bottom: env(safe-area-inset-bottom, 0px);--safe-left: env(safe-area-inset-left, 0px);--safe-right: env(safe-area-inset-right, 0px);--mono: ui-monospace, SFMono-Regular, Menlo, monospace;--font-display: ui-serif, "New York", "Iowan Old Style", Georgia, "Noto Serif", serif}[data-theme=dark]{--bg: var(--tg-theme-secondary-bg-color, #0f0f10);--surface: var(--tg-theme-bg-color, #1c1c1e);--surface-sunken: var(--tg-theme-secondary-bg-color, #0f0f10);--bottom-bar: 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