/* Fallback palette for older browsers that do not support Tailwind v4's OKLCH colors. */
@supports not (color: oklch(62% 0.2 260)) {
    :root {
        --color-black: #000000;
        --color-white: #ffffff;

        --color-amber-50: #fffbeb;
        --color-amber-100: #fef3c7;
        --color-amber-200: #fde68a;
        --color-amber-300: #fcd34d;
        --color-amber-500: #f59e0b;
        --color-amber-600: #d97706;
        --color-amber-700: #b45309;
        --color-amber-800: #92400e;
        --color-amber-900: #78350f;

        --color-blue-50: #eff6ff;
        --color-blue-100: #dbeafe;
        --color-blue-200: #bfdbfe;
        --color-blue-300: #93c5fd;
        --color-blue-400: #60a5fa;
        --color-blue-500: #3b82f6;
        --color-blue-600: #2563eb;
        --color-blue-700: #1d4ed8;
        --color-blue-800: #1e40af;
        --color-blue-900: #1e3a8a;
        --color-blue-950: #172554;

        --color-cyan-50: #ecfeff;
        --color-cyan-100: #cffafe;
        --color-cyan-200: #a5f3fc;
        --color-cyan-300: #67e8f9;
        --color-cyan-700: #0e7490;
        --color-cyan-800: #155e75;
        --color-cyan-900: #164e63;

        --color-emerald-100: #d1fae5;
        --color-emerald-200: #a7f3d0;
        --color-emerald-400: #34d399;
        --color-emerald-500: #10b981;
        --color-emerald-600: #059669;
        --color-emerald-800: #065f46;
        --color-emerald-900: #064e3b;

        --color-gray-50: #f9fafb;
        --color-gray-100: #f3f4f6;
        --color-gray-200: #e5e7eb;
        --color-gray-300: #d1d5db;
        --color-gray-400: #9ca3af;
        --color-gray-500: #6b7280;
        --color-gray-600: #4b5563;
        --color-gray-700: #374151;
        --color-gray-800: #1f2937;
        --color-gray-900: #111827;

        --color-green-50: #f0fdf4;
        --color-green-100: #dcfce7;
        --color-green-200: #bbf7d0;
        --color-green-300: #86efac;
        --color-green-400: #4ade80;
        --color-green-500: #22c55e;
        --color-green-600: #16a34a;
        --color-green-700: #15803d;
        --color-green-800: #166534;
        --color-green-900: #14532d;

        --color-indigo-600: #4f46e5;
        --color-indigo-700: #4338ca;

        --color-neutral-50: #fafafa;
        --color-neutral-100: #f5f5f5;
        --color-neutral-200: #e5e5e5;
        --color-neutral-300: #d4d4d4;
        --color-neutral-400: #a3a3a3;
        --color-neutral-500: #737373;
        --color-neutral-600: #525252;
        --color-neutral-700: #404040;
        --color-neutral-800: #262626;
        --color-neutral-900: #171717;
        --color-neutral-950: #0a0a0a;

        --color-orange-50: #fff7ed;
        --color-orange-100: #ffedd5;
        --color-orange-300: #fdba74;
        --color-orange-700: #c2410c;
        --color-orange-800: #9a3412;

        --color-purple-50: #faf5ff;
        --color-purple-100: #f3e8ff;
        --color-purple-200: #e9d5ff;
        --color-purple-300: #d8b4fe;
        --color-purple-600: #9333ea;
        --color-purple-700: #7e22ce;
        --color-purple-800: #6b21a8;
        --color-purple-900: #581c87;

        --color-red-50: #fef2f2;
        --color-red-100: #fee2e2;
        --color-red-200: #fecaca;
        --color-red-300: #fca5a5;
        --color-red-400: #f87171;
        --color-red-500: #ef4444;
        --color-red-600: #dc2626;
        --color-red-700: #b91c1c;
        --color-red-800: #991b1b;
        --color-red-900: #7f1d1d;

        --color-rose-100: #ffe4e6;
        --color-rose-200: #fecdd3;
        --color-rose-500: #f43f5e;
        --color-rose-600: #e11d48;
        --color-rose-900: #881337;
        --color-rose-950: #4c0519;

        --color-yellow-300: #fde047;
        --color-yellow-500: #eab308;
        --color-yellow-600: #ca8a04;
        --color-yellow-700: #a16207;
    }
}

/* ---- Belt-and-suspenders: critical brand colors (Light mode only) ---- */
html:not(.dark) nav.bg-blue-600,
html:not(.dark) nav[class*="bg-blue-600"] {
  background-color: #2563eb !important;
}
html:not(.dark) body.bg-gray-100 {
  background-color: #f3f4f6 !important;
  color: #111827 !important;
}
html:not(.dark) footer.bg-gray-200 {
  background-color: #e5e7eb !important;
}
html:not(.dark) button.bg-blue-600 {
  background-color: #2563eb !important;
  color: #ffffff !important;
}
html:not(.dark) #scrollToTopBtn {
  background-color: #2563eb !important;
  color: #ffffff !important;
}

/* ---- Belt-and-suspenders: critical brand colors (Dark mode) ---- */
html.dark nav.bg-blue-600,
html.dark nav[class*="bg-blue-600"],
html.dark nav.dark\:bg-gray-800,
html.dark nav[class*="dark:bg-gray-800"] {
  background-color: #1f2937 !important;
}
html.dark body.bg-gray-100,
html.dark body.dark\:bg-gray-900 {
  background-color: #111827 !important;
  color: #f3f4f6 !important;
}
html.dark footer.bg-gray-200,
html.dark footer.dark\:bg-gray-800 {
  background-color: #1f2937 !important;
}
html.dark button.bg-blue-600 {
  background-color: #2563eb !important;
  color: #ffffff !important;
}
html.dark #scrollToTopBtn {
  background-color: #2563eb !important;
  color: #ffffff !important;
}

/* ---- Dark-mode content color fix ----
 * Rendered question/option/explanation HTML (from CKEditor/TinyMCE/Markdown) is stored
 * with inline styles like style="color:#111827" or <font color="black">. Tailwind's
 * dark:prose-invert utility cannot override inline `style` attributes, so the text
 * stays literally black on a dark gray-800 card — nearly invisible.
 */
.compat-dark-content,
.compat-dark-content *:not(a):not(.preserve-color) {
  color: #111827;
}
.compat-dark-option-content,
.compat-dark-option-content *:not(a):not(.preserve-color) {
  color: #1f2937;
}
html.dark .compat-dark-content,
html.dark .compat-dark-content *:not(a):not(.preserve-color),
body.nta-page-dark .compat-dark-content,
body.nta-page-dark .compat-dark-content *:not(a):not(.preserve-color) {
  color: #e5e7eb !important;
  border-color: #4b5563 !important;
  background-color: transparent;
}
html.dark .compat-dark-option-content,
html.dark .compat-dark-option-content *:not(a):not(.preserve-color),
body.nta-page-dark .compat-dark-option-content,
body.nta-page-dark .compat-dark-option-content *:not(a):not(.preserve-color) {
  color: #d1d5db !important;
  border-color: #4b5563 !important;
  background-color: transparent;
}
/* Links */
html.dark .compat-dark-content a,
html.dark .compat-dark-option-content a,
body.nta-page-dark .compat-dark-content a,
body.nta-page-dark .compat-dark-option-content a {
  color: #93c5fd !important;
}
/* Deprecated <font color="black"> tags in stored content */
html.dark .compat-dark-content font[color="#000000"],
html.dark .compat-dark-content font[color="black"],
html.dark .compat-dark-content font[color="#000"],
html.dark .compat-dark-option-content font[color="#000000"],
html.dark .compat-dark-option-content font[color="black"],
html.dark .compat-dark-option-content font[color="#000"],
body.nta-page-dark .compat-dark-content font[color="#000000"],
body.nta-page-dark .compat-dark-content font[color="black"],
body.nta-page-dark .compat-dark-content font[color="#000"],
body.nta-page-dark .compat-dark-option-content font[color="#000000"],
body.nta-page-dark .compat-dark-option-content font[color="black"],
body.nta-page-dark .compat-dark-option-content font[color="#000"] {
  color: #e5e7eb !important;
}
/* Keep explicit semantic alert hues readable in dark mode (don't grey them out) */
html.dark .compat-dark-content [style*="color:#059669"],
html.dark .compat-dark-content [style*="color: rgb(5, 150, 105)"],
html.dark .compat-dark-content [style*="color:green"],
html.dark .compat-dark-option-content [style*="color:#059669"],
html.dark .compat-dark-option-content [style*="color: rgb(5, 150, 105)"],
html.dark .compat-dark-option-content [style*="color:green"],
body.nta-page-dark .compat-dark-content [style*="color:#059669"],
body.nta-page-dark .compat-dark-content [style*="color: rgb(5, 150, 105)"],
body.nta-page-dark .compat-dark-content [style*="color:green"],
body.nta-page-dark .compat-dark-option-content [style*="color:#059669"],
body.nta-page-dark .compat-dark-option-content [style*="color: rgb(5, 150, 105)"],
body.nta-page-dark .compat-dark-option-content [style*="color:green"] { color: #34d399 !important; }

html.dark .compat-dark-content [style*="color:#dc2626"],
html.dark .compat-dark-content [style*="color: rgb(220, 38, 38)"],
html.dark .compat-dark-content [style*="color:red"],
html.dark .compat-dark-option-content [style*="color:#dc2626"],
html.dark .compat-dark-option-content [style*="color: rgb(220, 38, 38)"],
html.dark .compat-dark-option-content [style*="color:red"],
body.nta-page-dark .compat-dark-content [style*="color:#dc2626"],
body.nta-page-dark .compat-dark-content [style*="color: rgb(220, 38, 38)"],
body.nta-page-dark .compat-dark-content [style*="color:red"],
body.nta-page-dark .compat-dark-option-content [style*="color:#dc2626"],
body.nta-page-dark .compat-dark-option-content [style*="color: rgb(220, 38, 38)"],
body.nta-page-dark .compat-dark-option-content [style*="color:red"] { color: #fca5a5 !important; }

html.dark .compat-dark-content [style*="color:#2563eb"],
html.dark .compat-dark-content [style*="color: rgb(37, 99, 235)"],
html.dark .compat-dark-content [style*="color:blue"],
html.dark .compat-dark-option-content [style*="color:#2563eb"],
html.dark .compat-dark-option-content [style*="color: rgb(37, 99, 235)"],
html.dark .compat-dark-option-content [style*="color:blue"],
body.nta-page-dark .compat-dark-content [style*="color:#2563eb"],
body.nta-page-dark .compat-dark-content [style*="color: rgb(37, 99, 235)"],
body.nta-page-dark .compat-dark-content [style*="color:blue"],
body.nta-page-dark .compat-dark-option-content [style*="color:#2563eb"],
body.nta-page-dark .compat-dark-option-content [style*="color: rgb(37, 99, 235)"],
body.nta-page-dark .compat-dark-option-content [style*="color:blue"] { color: #93c5fd !important; }

html.dark .compat-dark-content [style*="color:#ca8a04"],
html.dark .compat-dark-content [style*="color: rgb(202, 138, 4)"],
html.dark .compat-dark-content [style*="color:yellow"],
html.dark .compat-dark-option-content [style*="color:#ca8a04"],
html.dark .compat-dark-option-content [style*="color: rgb(202, 138, 4)"],
html.dark .compat-dark-option-content [style*="color:yellow"],
body.nta-page-dark .compat-dark-content [style*="color:#ca8a04"],
body.nta-page-dark .compat-dark-content [style*="color: rgb(202, 138, 4)"],
body.nta-page-dark .compat-dark-content [style*="color:yellow"],
body.nta-page-dark .compat-dark-option-content [style*="color:#ca8a04"],
body.nta-page-dark .compat-dark-option-content [style*="color: rgb(202, 138, 4)"],
body.nta-page-dark .compat-dark-option-content [style*="color:yellow"] { color: #fde047 !important; }



/* ---- Global MathJax dark-mode visibility fix ---- */
/* ============ Tailwind dark mode (html.dark class) ============ */
html#app-root.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark mjx-container,
html#app-root.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark mjx-container *,
html#app-root.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark mjx-container *::before,
html#app-root.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark mjx-container *::after,
html#app-root.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark mjx-math,
html#app-root.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark mjx-math *,
html#app-root.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark mjx-math *::before,
html#app-root.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark mjx-math *::after,
html#app-root.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark mjx-c,
html#app-root.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark mjx-c::before,
html#app-root.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark mjx-char,
html#app-root.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark mjx-mi,
html#app-root.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark mjx-mo,
html#app-root.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark mjx-mn,
html#app-root.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark mjx-mtext,
html#app-root.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark mjx-utext,
html#app-root.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark mjx-ms {
    color: #ffffff !important;
    opacity: 1 !important;
    text-shadow: none !important;
    -webkit-text-stroke: 0 !important;
}
/* FRACTIONS */
html#app-root.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark mjx-mfrac,
html#app-root.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark mjx-mfrac *,
html#app-root.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark mjx-frac,
html#app-root.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark mjx-num,
html#app-root.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark mjx-den,
html#app-root.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark mjx-nstrut,
html#app-root.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark mjx-dstrut {
    color: #ffffff !important;
    opacity: 1 !important;
}
html#app-root.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark mjx-line {
    color: #ffffff !important;
    border-top-color: #ffffff !important;
    border-color: #ffffff !important;
    border-bottom-color: #ffffff !important;
    background-color: #ffffff !important;
    opacity: 1 !important;
}
/* ROOTS & SURD (√) */
html#app-root.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark mjx-msqrt,
html#app-root.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark mjx-mroot,
html#app-root.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark mjx-sqrt,
html#app-root.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark mjx-root,
html#app-root.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark mjx-surd,
html#app-root.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark mjx-rbox,
html#app-root.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark mjx-base {
    color: #ffffff !important;
    opacity: 1 !important;
}
/* STRETCHY GLYPHS */
html#app-root.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark mjx-stretchy-v,
html#app-root.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark mjx-stretchy-h,
html#app-root.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark mjx-stretched,
html#app-root.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark mjx-ext,
html#app-root.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark mjx-arrow,
html#app-root.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark mjx-tall {
    color: #ffffff !important;
    opacity: 1 !important;
}
/* SCRIPTS (sub/super/nested fractions) */
html#app-root.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark mjx-script,
html#app-root.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark mjx-scripts,
html#app-root.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark mjx-prescripts,
html#app-root.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark mjx-msub,
html#app-root.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark mjx-msup,
html#app-root.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark mjx-msubsup,
html#app-root.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark mjx-multiscripts,
html#app-root.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark mjx-munder,
html#app-root.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark mjx-mover,
html#app-root.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark mjx-munderover,
html#app-root.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark mjx-under,
html#app-root.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark mjx-over {
    color: #ffffff !important;
    opacity: 1 !important;
}
/* CONTAINERS */
html#app-root.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark mjx-mrow,
html#app-root.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark mjx-row,
html#app-root.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark mjx-mstyle,
html#app-root.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark mjx-mpadded,
html#app-root.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark mjx-mphantom,
html#app-root.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark mjx-box,
html#app-root.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark mjx-block,
html#app-root.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark mjx-menclose {
    color: #ffffff !important;
    opacity: 1 !important;
}
/* MATRICES / TABLES */
html#app-root.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark mjx-mtable,
html#app-root.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark mjx-table,
html#app-root.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark mjx-mtr,
html#app-root.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark mjx-mtd,
html#app-root.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark mjx-dtable,
html#app-root.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark mjx-dtr,
html#app-root.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark mjx-dtd,
html#app-root.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark mjx-itable,
html#app-root.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark mjx-cell,
html#app-root.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark mjx-labels {
    color: #ffffff !important;
    opacity: 1 !important;
    border-color: #ffffff !important;
}
/* ROOTS / SURD - vinculum */
html#app-root.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark mjx-container mjx-msqrt,
html#app-root.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark mjx-container mjx-mroot,
html#app-root.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark mjx-container mjx-sqrt,
html#app-root.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark mjx-container mjx-root,
html#app-root.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark mjx-container mjx-surd,
html#app-root.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark mjx-container mjx-box,
html#app-root.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark mjx-container mjx-rbox,
html#app-root.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark mjx-container mjx-base {
    border-color: #ffffff !important;
    border-top-color: #ffffff !important;
    border-right-color: #ffffff !important;
    border-bottom-color: #ffffff !important;
    border-left-color: #ffffff !important;
    outline-color: #ffffff !important;
    color: #ffffff !important;
    opacity: 1 !important;
}
/* SVG */
html#app-root.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark mjx-container svg,
html#app-root.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark mjx-container svg *,
html#app-root.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark svg[data-mml-node],
html#app-root.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark svg[data-mml-node] *,
html#app-root.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark mjx-surd svg,
html#app-root.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark mjx-surd svg * {
    color: #ffffff !important;
    fill: #ffffff !important;
    stroke: #ffffff !important;
    opacity: 1 !important;
}
/* Native MathML fallback */
html#app-root.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark math,
html#app-root.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark.dark math * {
    color: #ffffff !important;
    fill: #ffffff !important;
    stroke: #ffffff !important;
    opacity: 1 !important;
}

/* ============ body.nta-page-dark (NTA exam/test pages) ============ */
body#app-body.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark mjx-container,
body#app-body.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark mjx-container *,
body#app-body.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark mjx-container *::before,
body#app-body.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark mjx-container *::after,
body#app-body.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark mjx-math,
body#app-body.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark mjx-math *,
body#app-body.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark mjx-c,
body#app-body.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark mjx-c::before,
body#app-body.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark mjx-mi,
body#app-body.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark mjx-mo,
body#app-body.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark mjx-mn {
    color: #ffffff !important;
    opacity: 1 !important;
    text-shadow: none !important;
}
body#app-body.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark mjx-mfrac,
body#app-body.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark mjx-mfrac *,
body#app-body.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark mjx-frac,
body#app-body.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark mjx-num,
body#app-body.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark mjx-den {
    color: #ffffff !important;
    opacity: 1 !important;
}
body#app-body.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark mjx-line {
    color: #ffffff !important;
    border-top-color: #ffffff !important;
    border-color: #ffffff !important;
    background-color: #ffffff !important;
    opacity: 1 !important;
}
body#app-body.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark mjx-msqrt,
body#app-body.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark mjx-mroot,
body#app-body.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark mjx-sqrt,
body#app-body.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark mjx-root,
body#app-body.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark mjx-surd,
body#app-body.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark mjx-script,
body#app-body.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark mjx-scripts,
body#app-body.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark mjx-msubsup,
body#app-body.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark mjx-munder,
body#app-body.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark mjx-mover,
body#app-body.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark mjx-munderover {
    color: #ffffff !important;
    opacity: 1 !important;
}
body#app-body.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark mjx-stretchy-v,
body#app-body.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark mjx-stretchy-h,
body#app-body.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark mjx-stretched,
body#app-body.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark mjx-mrow,
body#app-body.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark mjx-row,
body#app-body.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark mjx-mstyle,
body#app-body.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark mjx-mpadded,
body#app-body.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark mjx-mphantom,
body#app-body.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark mjx-box,
body#app-body.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark mjx-block {
    color: #ffffff !important;
    opacity: 1 !important;
}
/* ROOTS / SURD - vinculum */
body#app-body.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark mjx-msqrt,
body#app-body.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark mjx-mroot,
body#app-body.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark mjx-sqrt,
body#app-body.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark mjx-root,
body#app-body.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark.nta-page-dark mjx-surd,
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