:root{color-scheme:light;--bg:#f7f8fa;--surface:#ffffff;--text:#17202a;--muted:#5c6876;--border:#dce2e8;--accent:#0b6bcb;--accent-dark:#084f95;--success:#0b7a4b;--danger:#b42318;--button-text:#ffffff;--shadow:0 8px 24px rgba(23, 32, 42, 0.08);--surface-muted:#eef1f4;--surface-hover:#dfe5eb;--surface-accent:#eef5fc;--surface-result:#f7fbff;--border-strong:#b8c3cf;--border-accent:#cfe4f7;--focus-ring:rgba(11, 107, 203, 0.18)}:root[data-theme=dark]{color-scheme:dark;--bg:#121820;--surface:#1b2530;--text:#edf2f7;--muted:#aebac7;--border:#354352;--accent:#69aef5;--accent-dark:#a8d2ff;--success:#66d19e;--danger:#ff958b;--button-text:#121820;--shadow:0 8px 24px rgba(0, 0, 0, 0.24);--surface-muted:#27323d;--surface-hover:#344250;--surface-accent:#25394d;--surface-result:#1d3042;--border-strong:#607080;--border-accent:#476b8c;--focus-ring:rgba(105, 174, 245, 0.28)}@media 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