: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: #16a06a;--on-brand: #ffffff;--brand-wash: rgba(22, 160, 106, .12);--on-filled: #ffffff;--state-new: var(--tg-theme-hint-color, #a8adb3);--state-learning: #e8a33d;--state-strengthening: #3e8fe0;--state-mastered: #16a06a;--state-track: rgba(128, 128, 128, .18);--warning-wash: rgba(232, 163, 61, .16);--warning-text: #b3761c;--danger-wash: rgba(223, 63, 64, .14);--zone-past: #b06a3b;--zone-present: var(--state-mastered);--zone-future: #4a63a8;--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}[data-theme=dark]{--separator: rgba(255, 255, 255, .14);--state-track: rgba(255, 255, 255, .14);--brand-wash: rgba(22, 160, 106, .2);--warning-wash: rgba(232, 163, 61, .18);--warning-text: #e8a33d;--danger-wash: rgba(223, 63, 64, .2);--zone-past: #cf8a5a;--zone-future: #7d92d6}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text);font-family:var(--tg-font-family, -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", Roboto, 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