:root{--bg: #eef1f7;--card: #ffffff;--input: #f4f6fb;--border: #d4dae8;--border-hi:#a8b4cc;--accent: #4a7fd4;--accent-dim: rgba(74,127,212,.1);--accent-glow: rgba(74,127,212,.22);--accent-border: rgba(74,127,212,.27);--accent-trim: rgba(74,127,212,.2);--strength: #16a34a;--strength-bg: rgba(22,163,74,.08);--weakness: #dc2626;--weakness-bg: rgba(220,38,38,.1);--warning: #d97706;--warning-bg: rgba(217,119,6,.1);--text-primary: #1c2338;--text-body: rgba(28,35,56,.8);--text-secondary: rgba(28,35,56,.5);--text-dim: rgba(28,35,56,.32);--board-light: #e8f0f8;--board-dark: #4a7da8;--board-section: #1a3a5c;--highlight: rgba(74,127,212,.35);--last-move: rgba(22,163,74,.25);--glass-bg: rgba(255,255,255,.72);--glass-border: rgba(28,35,56,.09);--glass-shadow: rgba(28,35,56,.14);--glass-hi: rgba(255,255,255,.6);--hover-tint: rgba(74,127,212,.05);--hover-tint-md: rgba(74,127,212,.12);--scrollbar: rgba(74,127,212,.2)}[data-theme=dark]{--bg: #0c1020;--card: #111827;--input: #1a2236;--border: 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