*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}html,body{margin:0;padding:0;min-height:100%;font-family:-apple-system,BlinkMacSystemFont,Hiragino Sans,Yu Gothic,sans-serif;background:var(--bg);color:var(--text-primary);font-size:16px;line-height:1.5;overscroll-behavior:none}body[data-theme=dark]{--bg: #000000;--bg-elevated: #16181c;--text-primary: #ffffff;--text-secondary: #71767b;--divider: #2f3336;--accent: #1d9bf0;--danger: #f4212e;--button-disabled-bg: #333639;--button-disabled-text: #71767b;--focus-ring: rgba(29, 155, 240, .55)}body[data-theme=light]{--bg: #ffffff;--bg-elevated: #f7f9f9;--text-primary: #0f1419;--text-secondary: #536471;--divider: #eff3f4;--accent: #1d9bf0;--danger: #f4212e;--button-disabled-bg: #cfd9de;--button-disabled-text: #536471;--focus-ring: rgba(29, 155, 240, 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