:root{--color-bg:#fff;--color-fg:#111;--color-header-bg:#222;--color-header-fg:#fff;--color-header-sub:#bbb;--color-move-bg:#f8f8f8;--color-move-active:#d1eaff;--color-success:green;--color-error:red;--color-border:#ccc}[data-theme=light]{--color-bg:#fff;--color-fg:#111;--color-header-bg:#f5f5f5;--color-header-fg:#222;--color-header-sub:#555;--color-move-bg:#f8f8f8;--color-move-active:#d1eaff;--color-success:#007a00;--color-error:#c00;--color-border:#ccc}[data-theme=dark]{--color-bg:#181818;--color-fg:#fff;--color-header-bg:#222;--color-header-fg:#fff;--color-header-sub:#bbb;--color-move-bg:#23272e;--color-move-active:#2a3b4d;--color-success:#7fff7f;--color-error:#ff7f7f;--color-border:#444}body,html{background:var(--color-bg);color:var(--color-fg)}@media (max-width:900px){.main-flex{flex-direction:column!important;align-items:stretch!important}.move-list,.pgn-controls{min-width:0!important;max-width:100%!important;margin:0 0 16px!important}.board-center{align-items:stretch!important}}@media (max-width:600px){.header-title{font-size:20px!important}.main-flex{padding:0 4px!important}.move-list,.pgn-controls{font-size:13px!important;padding:4px!important}.board-center{width:100%!important}.pgn-controls{margin-left:0!important;padding:0 12px!important}}