/* LessonSky RC30.55.52 — Design System 5.2 matte tokens
 * Contract: profile palettes may change accent/ambient color only. Core text,
 * surfaces, geometry and component visibility stay high-contrast and invariant.
 */
body{
  --ls-bg:#f4f7fb;--ls-bg-2:#eef3f8;--ls-surface:#fff;--ls-surface-2:#f8fafc;--ls-surface-3:#edf3f8;
  --ls-surface-glass:rgba(255,255,255,.95);--ls-text:#21364d;--ls-text-strong:#10263f;--ls-muted:#5c7086;--ls-muted-2:#6c7d8f;
  --ls-line:#d7e1eb;--ls-line-strong:#bdccdc;--ls-primary:#315f8d;--ls-primary-2:#465d91;--ls-accent:#2d8995;
  --ls-primary-soft:#e9f0f7;--ls-primary-soft-2:#eef0f8;--ls-hero-1:#294f77;--ls-hero-2:#376a83;--ls-hero-3:#53638d;
  --ls-glow:rgba(49,95,141,.16);--ls-glow-2:rgba(45,137,149,.12);--ls-success:#168363;--ls-warning:#b97808;--ls-danger:#c74761;--ls-info:#315f8d;
  --ls-option-a:#d7475c;--ls-option-b:#2c6fc4;--ls-option-c:#228c68;--ls-option-d:#7754bd;--ls-focus:rgba(49,95,141,.30);
  --ls-shadow-sm:0 1px 0 rgba(255,255,255,.98) inset,0 6px 16px rgba(37,62,91,.06);
  --ls-shadow-md:0 1px 0 rgba(255,255,255,.98) inset,0 12px 28px rgba(37,62,91,.09),0 2px 6px rgba(37,62,91,.04);
  --ls-shadow-lg:0 1px 0 rgba(255,255,255,.98) inset,0 20px 48px rgba(37,62,91,.12),0 6px 14px rgba(37,62,91,.05);
  --ls-shadow-button:0 8px 18px rgba(49,95,141,.18),0 2px 4px rgba(49,95,141,.10);
  --ls-radius-sm:12px;--ls-radius-md:18px;--ls-radius-lg:26px;--ls-control:44px;color-scheme:light;
}
body.lessonsky-theme-blue,body:not(.lessonsky-theme-sky):not(.lessonsky-theme-pink):not(.lessonsky-theme-green):not(.lessonsky-theme-purple):not(.lessonsky-theme-teal):not(.lessonsky-theme-slate):not(.lessonsky-theme-plum):not(.lessonsky-theme-amber){--ls-primary:#315f8d;--ls-primary-2:#465d91;--ls-accent:#2d8995;--ls-primary-soft:#e9f0f7;--ls-primary-soft-2:#eef0f8;--ls-hero-1:#294f77;--ls-hero-2:#376a83;--ls-hero-3:#53638d;--ls-glow:rgba(49,95,141,.16);--ls-glow-2:rgba(45,137,149,.12);--ls-focus:rgba(49,95,141,.30)}
body.lessonsky-theme-sky{--ls-bg:#f4f9fc;--ls-bg-2:#eef7fb;--ls-surface-3:#eaf5fb;--ls-primary:#3475a8;--ls-primary-2:#536daf;--ls-accent:#3aa4b4;--ls-primary-soft:#e7f2fa;--ls-primary-soft-2:#edf1fb;--ls-hero-1:#2e678e;--ls-hero-2:#3e829c;--ls-hero-3:#5b73a6;--ls-focus:rgba(52,117,168,.28)}
body.lessonsky-theme-pink{--ls-bg:#fcf7fa;--ls-bg-2:#f8f3f8;--ls-surface-3:#f8edf4;--ls-primary:#a94778;--ls-primary-2:#765896;--ls-accent:#bb6289;--ls-primary-soft:#f8eaf2;--ls-primary-soft-2:#f1edf6;--ls-hero-1:#874267;--ls-hero-2:#7a527f;--ls-hero-3:#685b91;--ls-focus:rgba(169,71,120,.27)}
body.lessonsky-theme-green{--ls-bg:#f4f8f6;--ls-bg-2:#eef5f1;--ls-surface-3:#e9f3ee;--ls-primary:#3d755e;--ls-primary-2:#506d78;--ls-accent:#5b8c74;--ls-primary-soft:#e8f1ec;--ls-primary-soft-2:#ecf1f3;--ls-hero-1:#3b6957;--ls-hero-2:#507a68;--ls-hero-3:#5a7080;--ls-focus:rgba(61,117,94,.28)}
body.lessonsky-theme-purple{--ls-bg:#f8f6fb;--ls-bg-2:#f2f0f7;--ls-surface-3:#eeeaf5;--ls-primary:#6f5b91;--ls-primary-2:#52678f;--ls-accent:#8a70a0;--ls-primary-soft:#eee9f6;--ls-primary-soft-2:#edf0f6;--ls-hero-1:#5c4c7c;--ls-hero-2:#536184;--ls-hero-3:#775b87;--ls-focus:rgba(111,91,145,.28)}
body.lessonsky-theme-teal{--ls-bg:#f3f8f8;--ls-bg-2:#edf4f4;--ls-surface-3:#e7f1f1;--ls-primary:#286b6d;--ls-primary-2:#3f667d;--ls-accent:#478a83;--ls-primary-soft:#e3f0ef;--ls-primary-soft-2:#eaf0f4;--ls-hero-1:#275d63;--ls-hero-2:#346c73;--ls-hero-3:#48677e;--ls-focus:rgba(40,107,109,.28)}
body.lessonsky-theme-slate{--ls-bg:#f5f6f7;--ls-bg-2:#eff1f3;--ls-surface-3:#e9edf0;--ls-primary:#526577;--ls-primary-2:#4f6077;--ls-accent:#697c83;--ls-primary-soft:#e9edf1;--ls-primary-soft-2:#ebedf2;--ls-hero-1:#445666;--ls-hero-2:#536273;--ls-hero-3:#5c6578;--ls-focus:rgba(82,101,119,.28)}
body.lessonsky-theme-plum{--ls-bg:#faf6f9;--ls-bg-2:#f4eff3;--ls-surface-3:#f0e8ee;--ls-primary:#76506d;--ls-primary-2:#645979;--ls-accent:#956b83;--ls-primary-soft:#f0e7ed;--ls-primary-soft-2:#eeeaf1;--ls-hero-1:#65455f;--ls-hero-2:#66516d;--ls-hero-3:#665e7b;--ls-focus:rgba(118,80,109,.28)}
body.lessonsky-theme-amber{--ls-bg:#faf8f3;--ls-bg-2:#f5f1e9;--ls-surface-3:#f1ebdf;--ls-primary:#876632;--ls-primary-2:#6d6270;--ls-accent:#987744;--ls-primary-soft:#f3ebdb;--ls-primary-soft-2:#efedf0;--ls-hero-1:#745a32;--ls-hero-2:#78664d;--ls-hero-3:#6b6373;--ls-focus:rgba(135,102,50,.27)}
/* Legacy cached classes */
body.lessonsky-theme-light,body.lessonsky-theme-night-blue{--ls-primary:#315f8d;--ls-primary-2:#465d91;--ls-accent:#2d8995;--ls-hero-1:#294f77;--ls-hero-2:#376a83;--ls-hero-3:#53638d}
body.lessonsky-theme-pink-lilac{--ls-primary:#a94778;--ls-primary-2:#765896;--ls-accent:#bb6289;--ls-hero-1:#874267;--ls-hero-2:#7a527f;--ls-hero-3:#685b91}