/* Tailwind CSS compiled output - Manual compilation for Qoki Sudoku */

/* Hide language codes in dropdown */
#language-dropdown-menu a::before {
    content: none !important;
}

/* Force clean breadcrumb rendering (no list numbering) */
nav[aria-label="Breadcrumb"] ol,
nav[aria-label="Breadcrumb"] li {
    list-style: none !important;
}

nav[aria-label="Breadcrumb"] li::marker {
    content: "" !important;
}

/* Base styles */
*, ::before, ::after { box-sizing: border-box; border-width: 0; border-style: solid; border-color: #e5e7eb; }
::before, ::after { --tw-content: ''; }
html { line-height: 1.5; -webkit-text-size-adjust: 100%; -moz-tab-size: 4; tab-size: 4; font-family: ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans", sans-serif; font-feature-settings: normal; font-variation-settings: normal; }
body { margin: 0; line-height: inherit; }
h1, h2, h3, h4, h5, h6 { font-size: inherit; font-weight: inherit; }
a { color: inherit; text-decoration: inherit; }
button, input, optgroup, select, textarea { font-family: inherit; font-size: 100%; font-weight: inherit; line-height: inherit; color: inherit; margin: 0; padding: 0; }
button, select { text-transform: none; }
button { cursor: pointer; }
table { text-indent: 0; border-color: inherit; border-collapse: collapse; }

/* Font face */
@font-face {
    font-family: "Varela";
    src: url(/fonts/Varela-Regular.ttf);
}

.img-fluid {
    display: block;
    max-width: 100%;
    height: auto;
}

/* Utility classes */
.container { width: 100%; }
@media (min-width: 640px) { .container { max-width: 640px; } }
@media (min-width: 768px) { .container { max-width: 768px; } }
@media (min-width: 1024px) { .container { max-width: 1024px; } }
@media (min-width: 1280px) { .container { max-width: 1280px; } }
@media (min-width: 1536px) { .container { max-width: 1536px; } }

.fixed { position: fixed; }
.absolute { position: absolute; }
.relative { position: relative; }
.inset-0 { inset: 0px; }
.z-50 { z-index: 50; }

.mx-auto { margin-left: auto; margin-right: auto; }
.mx-4 { margin-left: 1rem; margin-right: 1rem; }
.my-4 { margin-top: 1rem; margin-bottom: 1rem; }
.mb-2 { margin-bottom: 0.5rem; }
.mb-3 { margin-bottom: 0.75rem; }
.mb-4 { margin-bottom: 1rem; }
.mb-6 { margin-bottom: 1.5rem; }
.mb-8 { margin-bottom: 2rem; }
.mb-12 { margin-bottom: 3rem; }
.mb-16 { margin-bottom: 4rem; }
.mt-3 { margin-top: 0.75rem; }
.mt-4 { margin-top: 1rem; }
.mt-6 { margin-top: 1.5rem; }
.mt-8 { margin-top: 2rem; }
.mt-16 { margin-top: 4rem; }
.mt-auto { margin-top: auto; }
.mr-2 { margin-right: 0.5rem; }
.ml-2 { margin-left: 0.5rem; }

.block { display: block; }
.inline-block { display: inline-block; }
.flex { display: flex; }
.inline-flex { display: inline-flex; }
.grid { display: grid; }
.hidden { display: none; }

.h-full { height: 100%; }
.h-12 { height: 3rem; }
.h-16 { height: 4rem; }
.h-20 { height: 5rem; }
.min-h-full { min-height: 100%; }

.w-full { width: 100%; }
.w-12 { width: 3rem; }
.w-16 { width: 4rem; }
.w-20 { width: 5rem; }
.w-50 { width: 50%; }
.w-80 { width: 20rem; }
.max-w-md { max-width: 28rem; }
.max-w-4xl { max-width: 56rem; }
.max-w-7xl { max-width: 80rem; }

.flex-1 { flex: 1 1 0%; }
.flex-col { flex-direction: column; }
.flex-wrap { flex-wrap: wrap; }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }
.justify-center { justify-content: center; }

.gap-2 { gap: 0.5rem; }
.gap-4 { gap: 1rem; }
.gap-6 { gap: 1.5rem; }
.space-x-2 > :not([hidden]) ~ :not([hidden]) { margin-left: 0.5rem; }
.space-x-3 > :not([hidden]) ~ :not([hidden]) { margin-left: 0.75rem; }
.space-x-6 > :not([hidden]) ~ :not([hidden]) { margin-left: 1.5rem; }
.space-x-8 > :not([hidden]) ~ :not([hidden]) { margin-left: 2rem; }
.space-y-1 > :not([hidden]) ~ :not([hidden]) { margin-top: 0.25rem; }
.space-y-2 > :not([hidden]) ~ :not([hidden]) { margin-top: 0.5rem; }
.space-y-4 > :not([hidden]) ~ :not([hidden]) { margin-top: 1rem; }

.rounded { border-radius: 0.25rem; }
.rounded-lg { border-radius: 0.5rem; }
.rounded-xl { border-radius: 0.75rem; }
.rounded-2xl { border-radius: 1rem; }
.rounded-full { border-radius: 9999px; }
.rounded-md { border-radius: 0.375rem; }

.border { border-width: 1px; }
.border-2 { border-width: 2px; }
.border-t { border-top-width: 1px; }
.border-r-2 { border-right-width: 2px; }
.border-b-2 { border-bottom-width: 2px; }
.border-black { border-color: rgb(0, 0, 0); }
.border-gray-200 { border-color: rgb(229, 231, 235); }
.border-gray-300 { border-color: rgb(209, 213, 219); }
.border-gray-700 { border-color: rgb(55, 65, 81); }
.border-red-300 { border-color: rgb(252, 165, 165); }

.bg-white { background-color: rgb(255, 255, 255); }
.bg-black { background-color: rgb(0, 0, 0); }
.bg-gray-50 { background-color: rgb(249, 250, 251); }
.bg-gray-100 { background-color: rgb(243, 244, 246); }
.bg-gray-200 { background-color: rgb(229, 231, 235); }
.bg-gray-700 { background-color: rgb(55, 65, 81); }
.bg-blue-50 { background-color: rgb(239, 246, 255); }
.bg-blue-100 { background-color: rgb(219, 234, 254); }
.bg-blue-200 { background-color: rgb(191, 219, 254); }
.bg-green-100 { background-color: rgb(220, 252, 231); }
.bg-red-100 { background-color: rgb(254, 226, 226); }
.bg-purple-100 { background-color: rgb(243, 232, 255); }
.bg-opacity-50 { --tw-bg-opacity: 0.5; }
.bg-opacity-90 { --tw-bg-opacity: 0.9; }

.p-0 { padding: 0px; }
.p-1 { padding: 0.25rem; }
.p-2 { padding: 0.5rem; }
.p-3 { padding: 0.75rem; }
.p-4 { padding: 1rem; }
.p-6 { padding: 1.5rem; }
.p-8 { padding: 2rem; }
.px-1 { padding-left: 0.25rem; padding-right: 0.25rem; }
.px-2 { padding-left: 0.5rem; padding-right: 0.5rem; }
.px-3 { padding-left: 0.75rem; padding-right: 0.75rem; }
.px-4 { padding-left: 1rem; padding-right: 1rem; }
.px-6 { padding-left: 1.5rem; padding-right: 1.5rem; }
.py-2 { padding-top: 0.5rem; padding-bottom: 0.5rem; }
.py-3 { padding-top: 0.75rem; padding-bottom: 0.75rem; }
.py-6 { padding-top: 1.5rem; padding-bottom: 1.5rem; }
.py-8 { padding-top: 2rem; padding-bottom: 2rem; }

.text-center { text-align: center; }
.text-left { text-align: left; }
.text-sm { font-size: 0.875rem; line-height: 1.25rem; }
.text-base { font-size: 1rem; line-height: 1.5rem; }
.text-lg { font-size: 1.125rem; line-height: 1.75rem; }
.text-xl { font-size: 1.25rem; line-height: 1.75rem; }
.text-2xl { font-size: 1.5rem; line-height: 2rem; }
.text-3xl { font-size: 1.875rem; line-height: 2.25rem; }
.text-4xl { font-size: 2.25rem; line-height: 2.5rem; }
.text-5xl { font-size: 3rem; line-height: 1; }
.text-6xl { font-size: 3.75rem; line-height: 1; }
.text-xs { font-size: 0.75rem; line-height: 1rem; }

.font-medium { font-weight: 500; }
.font-semibold { font-weight: 600; }
.font-bold { font-weight: 700; }

.capitalize { text-transform: capitalize; }

.leading-none { line-height: 1; }

.text-white { color: rgb(255, 255, 255); }
.text-black { color: rgb(0, 0, 0); }
.text-gray-500 { color: rgb(107, 114, 128); }
.text-gray-600 { color: rgb(75, 85, 99); }
.text-gray-700 { color: rgb(55, 65, 81); }
.text-gray-800 { color: rgb(31, 41, 55); }
.text-gray-900 { color: rgb(17, 24, 39); }
.text-blue-600 { color: rgb(37, 99, 235); }
.text-green-600 { color: rgb(22, 163, 74); }
.text-red-600 { color: rgb(220, 38, 38); }
.text-red-700 { color: rgb(185, 28, 28); }
.text-purple-600 { color: rgb(147, 51, 234); }
.text-yellow-400 { color: rgb(250, 204, 21); }

.opacity-0 { opacity: 0; }
.opacity-50 { opacity: 0.5; }
.opacity-75 { opacity: 0.75; }

.shadow { box-shadow: 0 1px 3px 0 rgb(0 0 0 / 0.1), 0 1px 2px -1px rgb(0 0 0 / 0.1); }
.shadow-sm { box-shadow: 0 1px 2px 0 rgb(0 0 0 / 0.05); }
.shadow-md { box-shadow: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1); }
.shadow-lg { box-shadow: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1); }
.shadow-2xl { box-shadow: 0 25px 50px -12px rgb(0 0 0 / 0.25); }

.outline-none { outline: 2px solid transparent; outline-offset: 2px; }
.ring-2 { box-shadow: 0 0 0 2px; }
.ring-blue-400 { --tw-ring-color: rgb(96, 165, 250); }
.ring-gray-400 { --tw-ring-color: rgb(156, 163, 175); }
.ring-offset-2 { --tw-ring-offset-width: 2px; }
.focus\:ring-2:focus { box-shadow: 0 0 0 2px var(--tw-ring-color, currentColor); }
.focus\:ring-blue-400:focus { --tw-ring-color: rgb(96, 165, 250); }
.focus\:ring-gray-400:focus { --tw-ring-color: rgb(156, 163, 175); }
.focus\:ring-offset-2:focus { --tw-ring-offset-width: 2px; }
.focus\:outline-none:focus { outline: 2px solid transparent; outline-offset: 2px; }

.transition-all { transition-property: all; transition-timing-function: cubic-bezier(0.4, 0, 0.2, 1); transition-duration: 150ms; }
.transition-colors { transition-property: color, background-color, border-color; transition-timing-function: cubic-bezier(0.4, 0, 0.2, 1); transition-duration: 150ms; }
.duration-150 { transition-duration: 150ms; }
.duration-200 { transition-duration: 200ms; }
.duration-300 { transition-duration: 300ms; }

.cursor-pointer { cursor: pointer; }
.cursor-not-allowed { cursor: not-allowed; }

/* Custom colors */
.bg-qoki-primary { background-color: #002a3b; }
.bg-qoki-secondary { background-color: #1257c7; }
.bg-qoki-accent { background-color: #f4f8fb; }
.bg-qoki-error { background-color: #f8d7da; }
.text-qoki-primary { color: #002a3b; }
.text-qoki-secondary { color: #1257c7; }
.hover\:text-qoki-primary:hover { color: #002a3b; }
.hover\:bg-opacity-90:hover { --tw-bg-opacity: 0.9; }
.focus\:ring-qoki-primary:focus { --tw-ring-color: #002a3b; }

/* Sudoku specific styles */
.sudoku-cell {
    width: 3rem;
    height: 3rem;
    text-align: center;
    border: 1px solid rgb(209, 213, 219);
    cursor: pointer;
    transition: all 150ms;
}
.number-pad-layout {
    display: flex;
    flex-wrap: nowrap;
    justify-content: center;
    gap: 0.5rem;
    overflow-x: auto;
    padding-bottom: 0.25rem;
}
@media (min-width: 768px) {
    .number-pad-layout {
        display: grid;
        grid-template-columns: repeat(3, minmax(0, 1fr));
        gap: 0.5rem;
        overflow: visible;
        padding-bottom: 0;
    }
}
@media (min-width: 1024px) {
    .number-pad-layout {
        grid-template-columns: repeat(3, max-content);
        justify-content: center;
        gap: 0.75rem;
    }

    .number-pad-button {
        width: 3.5rem;
        height: 3.5rem;
        font-size: 1.25rem;
    }
}
.sudoku-cell:hover { background-color: rgb(239, 246, 255); }
.sudoku-cell:focus { outline: none; box-shadow: 0 0 0 2px rgb(96, 165, 250); }
.sudoku-cell-original { font-weight: 700; color: rgb(17, 24, 39); }
.sudoku-cell-user { color: rgb(37, 99, 235); font-weight: 600; }
.sudoku-cell-selected { background-color: rgb(219, 234, 254) !important; box-shadow: 0 0 0 2px rgb(96, 165, 250); }
.sudoku-cell-highlighted { background-color: rgb(239, 246, 255); }
.sudoku-cell-error { background-color: rgb(254, 226, 226); color: rgb(185, 28, 28); border-color: rgb(252, 165, 165); }
.sudoku-section-border-right { border-right: 2px solid black; }
.sudoku-section-border-bottom { border-bottom: 2px solid black; }

.number-pad-button {
    width: 3rem;
    height: 3rem;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.125rem;
    font-weight: 600;
    background-color: rgb(243, 244, 246);
    border: 1px solid rgb(209, 213, 219);
    border-radius: 0.5rem;
    cursor: pointer;
    transition: all 150ms;
}
.number-pad-button:hover { background-color: white; box-shadow: 0 4px 6px -1px rgb(0 0 0 / 0.1); }
.number-pad-button:active { transform: scale(0.95); }
.number-pad-button:disabled { opacity: 0.5; cursor: not-allowed; }
.number-pad-button:disabled:hover { background-color: rgb(243, 244, 246); box-shadow: none; }

.action-button {
    padding: 0.75rem 1.5rem;
    border-radius: 0.5rem;
    font-weight: 600;
    transition: all 200ms;
}
.action-button:focus { outline: none; box-shadow: 0 0 0 2px; }
.action-button-primary {
    background-color: #002a3b;
    color: white;
}
.action-button-primary:hover { opacity: 0.9; }
.action-button-primary:focus { --tw-ring-color: #002a3b; }
.action-button-secondary {
    background-color: rgb(229, 231, 235);
    color: rgb(31, 41, 55);
}
.action-button-secondary:hover { background-color: rgb(209, 213, 219); }
.action-button-secondary:focus { --tw-ring-color: rgb(156, 163, 175); }

.pencil-mark { font-size: 0.75rem; color: rgb(107, 114, 128); display: inline-block; padding-left: 0.25rem; padding-right: 0.25rem; }
.timer-display { font-size: 1.5rem; font-weight: 700; color: #002a3b; }
.trophy-icon { color: rgb(250, 204, 21); font-size: 3.75rem; }

.grid-cols-1 { grid-template-columns: repeat(1, minmax(0, 1fr)); }
.grid-cols-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.gap-0 { gap: 0px; }

/* Animations */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(-10px); }
    to { opacity: 1; transform: translateY(0); }
}
.fade-in { animation: fadeIn 0.3s ease-out; }

/* Hover effects */
.hover\:bg-blue-50:hover { background-color: rgb(239, 246, 255); }
.hover\:bg-blue-200:hover { background-color: rgb(191, 219, 254); }
.hover\:bg-gray-300:hover { background-color: rgb(209, 213, 219); }
.hover\:bg-gray-700:hover { background-color: rgb(55, 65, 81); }
.hover\:bg-white:hover { background-color: white; }
.hover\:text-gray-200:hover { color: rgb(229, 231, 235); }
.hover\:shadow-md:hover { box-shadow: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1); }
.hover\:shadow-2xl:hover { box-shadow: 0 25px 50px -12px rgb(0 0 0 / 0.25); }
.hover\:-translate-y-2:hover { transform: translateY(-0.5rem); }

.group:hover .group-hover\:bg-blue-200 { background-color: rgb(191, 219, 254); }

.transform { transform: translate(var(--tw-translate-x), var(--tw-translate-y)) rotate(var(--tw-rotate)) skewX(var(--tw-skew-x)) skewY(var(--tw-skew-y)) scaleX(var(--tw-scale-x)) scaleY(var(--tw-scale-y)); }
.active\:scale-95:active { --tw-scale-x: 0.95; --tw-scale-y: 0.95; }

/* Responsive */
@media (min-width: 640px) {
    .sm\:px-6 { padding-left: 1.5rem; padding-right: 1.5rem; }
}

@media (min-width: 768px) {
    .md\:flex { display: flex; }
    .md\:hidden { display: none; }
    .md\:flex-row { flex-direction: row; }
    .md\:grid-cols-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .md\:grid-cols-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
    .md\:text-2xl { font-size: 1.5rem; line-height: 2rem; }
    .md\:text-6xl { font-size: 3.75rem; line-height: 1; }
    .md\:mt-0 { margin-top: 0; }
}

@media (min-width: 1024px) {
    .lg\:flex-row { flex-direction: row; }
    .lg\:grid-cols-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .lg\:px-8 { padding-left: 2rem; padding-right: 2rem; }
    .lg\:w-80 { width: 20rem; }
}

@media (max-width: 1023px) {
    .number-pad-layout {
        display: flex;
        flex-wrap: nowrap;
        justify-content: center;
        gap: 0.5rem;
        overflow-x: auto;
        padding-bottom: 0.25rem;
    }

    .number-pad-button {
        flex: 0 0 auto;
    }
}

@media (max-width: 640px) {
    .sudoku-cell { width: 2.5rem; height: 2.5rem; font-size: 0.875rem; }
    .number-pad-button { width: 2.5rem; height: 2.5rem; font-size: 1rem; }
}

@media (max-width: 490px) {
    .number-pad-layout {
        display: grid;
        grid-template-columns: repeat(5, minmax(0, 1fr));
        gap: 0.4rem;
        overflow-x: visible;
    }

    .number-pad-button {
        width: 100%;
    }
}

@media (min-width: 1024px) {
    .sudoku-main-layout {
        gap: 0.5rem;
        justify-content: center;
        width: fit-content;
        margin-left: auto;
        margin-right: auto;
    }

    .sudoku-main-grid {
        width: auto;
        justify-content: flex-end;
    }

    .sudoku-main-pad {
        width: 20rem;
        justify-content: flex-start;
    }

    .sudoku-cell {
        width: 3.5rem;
        height: 3.5rem;
        font-size: 1.125rem;
    }

    .number-pad-card { width: 100%; }
    .number-pad-layout {
        grid-template-columns: repeat(3, minmax(0, 1fr));
        justify-content: stretch;
        gap: 0.6rem;
    }
    .number-pad-button { width: 100%; height: 3.5rem; }
}

.killer-two-top { border-top: 1px dashed black; border-left: 1px dashed black; border-right: 1px dashed black; margin-top: 5px; margin-left: 5px; margin-right: 5px; height: 95%; width: 85%; }
.killer-two-left { border-top: 1px dashed black; border-left: 1px dashed black; border-bottom: 1px dashed black; margin-top: 5px; margin-left: 5px; margin-bottom: 5px; height: 90%; width: 90%; }
.killer-two-bottom { border-right: 1px dashed black; border-left: 1px dashed black; border-bottom: 1px dashed black; margin-right: 5px; margin-left: 5px; margin-bottom: 5px; height: 95%; width: 85%; }
.killer-two-right { border-top: 1px dashed black; border-right: 1px dashed black; border-bottom: 1px dashed black; margin-right: 5px; margin-top: 5px; margin-bottom: 5px; height: 90%; width: 92%; }

.killer-four-top-left { border-top: 1px dashed black; border-left: 1px dashed black; margin-top: 5px; margin-left: 5px; height: 95%; width: 95%; }
.killer-four-top-right { border-top: 1px dashed black; border-right: 1px dashed black; margin-top: 5px; margin-right: 5px; height: 95%; width: 95%; }
.killer-four-bottom-left { border-left: 1px dashed black; border-bottom: 1px dashed black; margin-left: 5px; margin-bottom: 5px; height: 95%; width: 95%; }
.killer-four-bottom-right { border-right: 1px dashed black; border-bottom: 1px dashed black; margin-right: 5px; margin-bottom: 5px; height: 95%; width: 95%; }

.killer-three-top-to-bottom { border-top: 1px dashed black; border-left: 1px dashed black; border-right: 1px dashed black; margin-top: 7px; margin-left: 5px; margin-right: 5px; height: 100%; width: 85%; }
.killer-three-top-to-right { border-top: 1px dashed black; border-left: 1px dashed black; border-bottom: 1px dashed black; margin-top: 5px; margin-left: 5px; margin-bottom: 5px; height: 90%; width: 98%; }
.killer-three-bottom-to-top { border-bottom: 1px dashed black; border-left: 1px dashed black; border-right: 1px dashed black; margin-bottom: 7px; margin-left: 5px; margin-right: 5px; height: 100%; width: 86%; }
.killer-three-bottom-to-left { border-top: 1px dashed black; border-right: 1px dashed black; border-bottom: 1px dashed black; margin-top: 5px; margin-right: 5px; margin-bottom: 5px; height: 90%; margin-left: -5px; width: 100%; }
.killer-three-top-right { border-top: 1px dashed black; border-right: 1px dashed black; margin-top: -1px; margin-right: 10px; height: 90%; width: 93%; }
.killer-three-bottom-left { border-bottom: 1px dashed black; border-left: 1px dashed black; margin-bottom: 3px; margin-left: 5px; height: 95%; width: 90%; }

.killer-one { border: 1px dashed black; margin: 5px; height: 90%; width: 85%; }
.indication-parent { position: relative; }
.indication { width: 15px; height: 15px; left: 3px; top: 0; position: absolute; font-size: 0.9em; color: orange; }
.killer-number { font-size: 1rem; }
.pencils { font-size: 0.7em; border: 1px solid silver; margin-left: 2px; padding: 1px; }
.no-margin { margin: 0 !important; padding: 0 !important; }

@media (max-width: 768px) {
    .indication { font-size: 0.7rem; left: 0; }
}

.indication-parent[class*="killer-"] {
    margin: 0 !important;
    width: 100% !important;
    height: 100% !important;
    box-sizing: border-box;
}

.indication-parent {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
}

.indication {
    width: auto;
    height: auto;
    left: 3px;
    top: 2px;
    font-size: 0.72rem;
    line-height: 1;
    font-weight: 600;
    pointer-events: none;
}

.killer-number {
    font-size: 1.05rem;
    line-height: 1;
    font-weight: 700;
}

.killer-number-empty {
    opacity: 0;
}

.pencils {
    font-size: 0.65rem;
    margin-left: 1px;
    padding: 0 2px;
}

.calcudoku-two-top { border-top: 2px solid black !important; border-left: 2px solid black !important; border-right: 2px solid black !important; }
.calcudoku-two-left { border-top: 2px solid black !important; border-left: 2px solid black !important; border-bottom: 2px solid black !important; }
.calcudoku-two-bottom { border-right: 2px solid black !important; border-left: 2px solid black !important; border-bottom: 2px solid black !important; }
.calcudoku-two-right { border-top: 2px solid black !important; border-right: 2px solid black !important; border-bottom: 2px solid black !important; }

.calcudoku-four-top-left { border-top: 2px solid black !important; border-left: 2px solid black !important; }
.calcudoku-four-top-right { border-top: 2px solid black !important; border-right: 2px solid black !important; }
.calcudoku-four-bottom-left { border-left: 2px solid black !important; border-bottom: 2px solid black !important; }
.calcudoku-four-bottom-right { border-right: 2px solid black !important; border-bottom: 2px solid black !important; }

.calcudoku-three-top-to-bottom { border-top: 2px solid black !important; border-left: 2px solid black !important; border-right: 2px solid black !important; }
.calcudoku-three-top-to-right { border-top: 2px solid black !important; border-left: 2px solid black !important; border-bottom: 2px solid black !important; }
.calcudoku-three-bottom-to-top { border-bottom: 2px solid black !important; border-left: 2px solid black !important; border-right: 2px solid black !important; }
.calcudoku-three-bottom-to-left { border-top: 2px solid black !important; border-right: 2px solid black !important; border-bottom: 2px solid black !important; }
.calcudoku-three-top-right { border-top: 2px solid black !important; border-right: 2px solid black !important; }
.calcudoku-three-bottom-left { border-bottom: 2px solid black !important; border-left: 2px solid black !important; }

.calcudoku-one { border: 2px solid black !important; }

@media (min-width: 1024px) {
    .calcudoku-cell-lg {
        width: 4.25rem;
        height: 4.25rem;
        font-size: 1.2rem;
    }

    .calcudoku-cell-xl {
        width: 5rem;
        height: 5rem;
        font-size: 1.35rem;
    }
}

@media (max-width: 1023px) {
    .calcudoku-cell-lg {
        width: 3.25rem;
        height: 3.25rem;
        font-size: 1rem;
    }

    .calcudoku-cell-xl {
        width: 4rem;
        height: 4rem;
        font-size: 1.15rem;
    }
}

@media (max-width: 640px) {
    .calcudoku-cell-lg {
        width: 2.9rem;
        height: 2.9rem;
        font-size: 0.95rem;
    }

    .calcudoku-cell-xl {
        width: 3.5rem;
        height: 3.5rem;
        font-size: 1.05rem;
    }
}

.binary-number-pad-layout {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0.5rem;
}

.binary-cell-6 {
    width: 3.4rem;
    height: 3.4rem;
    font-size: 1.1rem;
}

.binary-cell-10 {
    width: 2.5rem;
    height: 2.5rem;
    font-size: 0.95rem;
}

.binary-cell-12 {
    width: 2.2rem;
    height: 2.2rem;
    font-size: 0.85rem;
}

.binary-cell-14 {
    width: 1.9rem;
    height: 1.9rem;
    font-size: 0.8rem;
}

@media (min-width: 1024px) {
    .binary-cell-6 {
        width: 4rem;
        height: 4rem;
        font-size: 1.25rem;
    }

    .binary-cell-10 {
        width: 2.9rem;
        height: 2.9rem;
        font-size: 1rem;
    }

    .binary-cell-12 {
        width: 2.45rem;
        height: 2.45rem;
        font-size: 0.95rem;
    }

    .binary-cell-14 {
        width: 2.2rem;
        height: 2.2rem;
        font-size: 0.88rem;
    }
}