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var(--space-md);border-radius:var(--radius);background:var(--color-surface);box-shadow:var(--shadow-float);border:none;position:relative}.newsletter-popup[data-astro-cid-7a7a6m64][open]{display:grid}.newsletter-popup[data-astro-cid-7a7a6m64]::backdrop{background:var(--color-backdrop)}@media (prefers-reduced-motion:no-preference){.newsletter-popup[data-astro-cid-7a7a6m64]{opacity:0;transition:opacity .3s ease, scale .3s var(--ease-out), display .3s allow-discrete, overlay .3s allow-discrete;scale:.94}.newsletter-popup[data-astro-cid-7a7a6m64][open]{opacity:1;scale:1}.newsletter-popup[data-astro-cid-7a7a6m64]::backdrop{opacity:0;transition:opacity .3s ease, display .3s allow-discrete, overlay .3s allow-discrete}.newsletter-popup[data-astro-cid-7a7a6m64][open]::backdrop{opacity:1}@starting-style{.newsletter-popup[data-astro-cid-7a7a6m64][open]{opacity:0;scale:.94}.newsletter-popup[data-astro-cid-7a7a6m64][open]::backdrop{opacity:0}}}.newsletter-popup[data-astro-cid-7a7a6m64] h2[data-astro-cid-7a7a6m64]{color:var(--color-text);font-size:var(--font-size-xl);margin-block-end:var(--space-xs);padding-inline-end:var(--space-md)}.newsletter-popup[data-astro-cid-7a7a6m64] p[data-astro-cid-7a7a6m64]{color:var(--color-text-muted);margin-block-end:var(--space-sm)}.newsletter-popup__close[data-astro-cid-7a7a6m64]{border:1px solid var(--color-border);background:var(--color-bg);block-size:2.25rem;inline-size:2.25rem;color:var(--color-text);cursor:pointer;border-radius:50%;place-items:center;display:grid;position:absolute;inset-block-start:var(--space-xs);inset-inline-end:var(--space-xs)}.newsletter-popup__close[data-astro-cid-7a7a6m64]:hover,.newsletter-popup__close[data-astro-cid-7a7a6m64]:focus-visible{background:var(--color-accent-soft)}.newsletter-popup__actions[data-astro-cid-7a7a6m64]{gap:var(--space-xs);border-block-start:1px solid var(--color-border);flex-direction:column;margin-block-start:var(--space-md);padding-block-start:var(--space-md);display:flex}.newsletter-popup__actions-row[data-astro-cid-7a7a6m64]{gap:var(--space-xs);flex-wrap:wrap;display:flex}.newsletter-popup__actions-row[data-astro-cid-7a7a6m64] .btn-secondary[data-astro-cid-7a7a6m64],.newsletter-popup__actions-row[data-astro-cid-7a7a6m64] .btn-primary[data-astro-cid-7a7a6m64]{flex:auto}.newsletter-popup__actions-full[data-astro-cid-7a7a6m64]{inline-size:100%}.noscript-banner[data-astro-cid-6bshb7hu]{background:var(--color-error);color:var(--color-status-text)}.noscript-banner[data-astro-cid-6bshb7hu] p[data-astro-cid-6bshb7hu]{padding-block:var(--space-xs);font-size:var(--font-size-sm);text-align:center;margin:0;font-weight:600}:root{--color-bg:oklch(98% .004 260);--color-surface:oklch(100% 0 0);--color-text:oklch(22% .02 260);--color-text-muted:oklch(42% .02 260);--color-border:oklch(88% .006 260);--color-accent:oklch(48% .16 258);--color-accent-2:oklch(46% .17 300);--color-accent-contrast:oklch(99% .005 260);--color-accent-soft:oklch(94% .03 258);--color-accent-strong:oklch(from var(--color-accent) .38 c h);--color-link-hover:oklch(52% .14 152);--color-badge-text:oklch(from var(--brand-violet) .46 c h);--color-badge-text-easy:oklch(from var(--color-success) .46 c h);--color-badge-text-medium:oklch(from var(--color-warning) .46 c h);--color-badge-text-hard:oklch(from var(--color-error) .46 c h);--color-fixed-dark:oklch(18% .012 260);--color-fixed-light:oklch(97% .004 260);--color-backdrop:oklch(0% 0 0/.7);--color-success:oklch(52% .15 152);--color-error:oklch(55% .19 25);--color-warning:oklch(52% .18 60);--color-status-text:oklch(98% .006 100);--brand-green:#10b981;--brand-blue:#60a5fa;--brand-violet:#a78bfa;--color-lang-pl:#dc143c;--color-lang-en:oklch(from var(--brand-blue) .5 c h);--color-lang-de:#000;--color-scrollbar:var(--brand-blue);--color-scrollbar-lightness:.71;--color-scrollbar-paint:oklch(from var(--color-scrollbar) var(--color-scrollbar-lightness) c h);--line-height-body:1.6;--line-height-heading:1.2;--font-body:system-ui, -apple-system, "Segoe UI", sans-serif;--font-mono:"Fira Code", ui-monospace, "Cascadia Code", Consolas, monospace;--font-display:"VT323", var(--font-mono);--font-size-xxs:.75rem;--font-size-xs:.875rem;--font-size-sm:1rem;--font-size-md:1.125rem;--font-size-lg:1.25rem;--font-size-xl:1.5rem;--font-size-xxl:1.625rem;--space-xs:.5rem;--space-sm:1rem;--space-md:1.5rem;--space-lg:2.5rem;--space-xl:4rem;--radius:.5rem;--header-row-height:4rem;--breadcrumbs-height:2.25rem;--header-height:var(--header-row-height);--shadow-float:0 .25rem 1rem oklch(from var(--color-backdrop) l c h / .12);--ease-out:cubic-bezier(.22, 1, .36, 1);--vt-duration-post:.5s;color-scheme:light}[data-theme=dark]{--color-scrollbar-lightness:.71;--color-bg:oklch(17% .014 260);--color-surface:oklch(22% .016 260);--color-text:oklch(95% .006 260);--color-text-muted:oklch(76% .012 260);--color-border:oklch(32% .016 260);--color-accent:oklch(72% .15 258);--color-accent-2:oklch(74% .16 300);--color-accent-contrast:oklch(15% .01 260);--color-accent-soft:oklch(28% .05 258);--color-link-hover:oklch(78% .15 152);--color-accent-strong:oklch(from var(--color-accent) .88 c h);--color-badge-text:oklch(from var(--brand-violet) .78 c h);--color-badge-text-easy:oklch(from var(--color-success) .78 c h);--color-badge-text-medium:oklch(from var(--color-warning) .78 c h);--color-badge-text-hard:oklch(from var(--color-error) .78 c h);--color-lang-pl:#fff;--color-lang-en:var(--brand-blue);--color-lang-de:#ffce00;color-scheme:dark}@media (width>=40rem){:root[data-breadcrumbs]{--header-height:calc(var(--header-row-height) + var(--breadcrumbs-height))}}@media (prefers-reduced-motion:no-preference){:root{view-transition-name:root}}*,:before,:after{box-sizing:border-box}html{color-scheme:light dark;scroll-behavior:smooth;accent-color:var(--color-accent)}body{background:var(--color-bg);min-block-size:100dvh;color:var(--color-text);font-family:var(--font-body);line-height:var(--line-height-body);-webkit-font-smoothing:antialiased;margin:0}:root[data-tone=lesson-easy]{--color-scrollbar:var(--color-success)}:root[data-tone=lesson-medium]{--color-scrollbar:var(--color-warning)}:root[data-tone=lesson-hard]{--color-scrollbar:var(--color-error)}:root[data-tone=tip]{--color-scrollbar:var(--brand-violet)}:root[data-tone=news]{--color-scrollbar:var(--brand-blue)}::-webkit-scrollbar{block-size:10px;inline-size:12px}::-webkit-scrollbar-button{block-size:0;inline-size:0;display:none}::-webkit-scrollbar-track{background:0 0}::-webkit-scrollbar-thumb{background:linear-gradient(180deg, oklch(from var(--color-scrollbar-paint) l c h / 0) 0%, oklch(from var(--color-scrollbar-paint) l c h / .6) 20%, oklch(from var(--color-scrollbar-paint) l c h / .75) 40%, oklch(from var(--color-scrollbar-paint) l c h / .75) 60%, oklch(from var(--color-scrollbar-paint) l c h / .6) 80%, oklch(from var(--color-scrollbar-paint) l c h / 0) 100%)}::-webkit-scrollbar-thumb:hover{cursor:pointer;background:linear-gradient(180deg, oklch(from var(--color-scrollbar-paint) l c h / 0) 0%, oklch(from var(--color-scrollbar-paint) l c h / .7) 8%, oklch(from var(--color-scrollbar-paint) l c h / .9) 20%, oklch(from var(--color-scrollbar-paint) l c h / .9) 80%, oklch(from var(--color-scrollbar-paint) l c h / .7) 92%, oklch(from var(--color-scrollbar-paint) l c h / 0) 100%)}img,picture,svg{block-size:auto;max-inline-size:100%;display:block}a{color:var(--color-accent)}a:focus-visible,button:focus-visible{outline:2px solid var(--color-accent);outline-offset:2px}h1,h2,h3,h4,h5,h6{font-family:var(--font-mono);font-weight:600;line-height:var(--line-height-heading);text-wrap:balance}h1{font-family:var(--font-display);font-weight:500;line-height:1}.visually-hidden{clip-path:inset(50%);white-space:nowrap;block-size:1px;inline-size:1px;position:absolute;overflow:hidden}.nowrap{white-space:nowrap}.visually-hidden:focus-visible{clip-path:none;white-space:normal;z-index:1000;block-size:auto;inline-size:auto;padding:var(--space-xs) var(--space-sm);border-radius:var(--radius);background:var(--color-surface);color:var(--color-accent);box-shadow:0 0 0 2px var(--color-accent);position:fixed;inset-block-start:var(--space-sm);inset-inline-start:var(--space-sm)}.container{inline-size:100%;max-inline-size:72rem;padding-inline:var(--space-md);margin-inline:auto}.btn-secondary{border:1px solid var(--color-border);border-radius:var(--radius);background:var(--color-surface);color:var(--color-text);font-size:var(--font-size-sm);font-weight:600;font-family:var(--font-mono);cursor:pointer;padding:.6rem 1.5rem}.btn-secondary:hover,.btn-secondary:focus-visible{border-color:var(--color-accent)}.btn-primary{border:1px solid var(--color-accent);border-radius:var(--radius);background:var(--color-accent);color:var(--color-accent-contrast);font-size:var(--font-size-sm);font-weight:600;font-family:var(--font-mono);cursor:pointer;padding:.6rem 1.5rem;transition:background .15s,border-color .15s}.btn-primary:hover,.btn-primary:focus-visible{background:var(--color-success);border-color:var(--color-success);color:var(--color-status-text)}.field-input{inline-size:100%;padding:var(--space-xs) .75rem;border:1px solid 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.2)}button.badge{cursor:pointer}.badge--on-surface{color:var(--badge-text)}.badge--easy{--badge-color:var(--color-success);--badge-text:var(--color-badge-text-easy)}.badge--medium{--badge-color:var(--color-warning);--badge-text:var(--color-badge-text-medium)}.badge--hard{--badge-color:var(--color-error);--badge-text:var(--color-badge-text-hard)}.badge--neutral{--badge-color:var(--color-text);--badge-text:var(--color-text);border-color:oklch(from var(--badge-color) l c h / .55);background:0 0}a.badge--neutral:hover,a.badge--neutral:focus-visible,button.badge--neutral:hover,button.badge--neutral:focus-visible{border-color:oklch(from var(--badge-color) l c h / .7);background:oklch(from var(--badge-color) l c h / .12)}.badge--accent{--badge-color:var(--color-accent);--badge-text:var(--color-accent);--badge-solid-text:var(--color-accent-contrast)}@property --tone-corner-x{syntax:"<percentage>";inherits:true;initial-value:0%}@property --tone-companion-x{syntax:"<percentage>";inherits:true;initial-value:100%}.tone-gradient{--tone-signal:var(--brand-violet);--tone-surface:var(--color-surface);--tone-strength:42%;--tone-companion:var(--brand-blue);--tone-companion-strength:14%;--tone-corner-x:0%;--tone-companion-x:100%;background:radial-gradient(ellipse 120% 100% at var(--tone-corner-x) 100%, color-mix(in oklab, var(--tone-signal) var(--tone-strength), transparent), transparent 72%), radial-gradient(ellipse 90% 80% at var(--tone-companion-x) 0%, color-mix(in oklab, var(--tone-companion) var(--tone-companion-strength), transparent), transparent 70%), 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var(--space-md);font-weight:600}.post-content code{background:var(--color-accent-soft);font-size:.875em;font-family:var(--font-mono);overflow-wrap:anywhere;border-radius:.25rem;padding:.15em .4em}.post-content kbd{border:1px solid var(--color-border);background:var(--color-surface);font-family:var(--font-mono);border-block-end-width:3px;border-radius:.3rem;padding:.1em .5em;font-size:.875em;display:inline-block}.post-content pre{margin-block:var(--space-md);padding:var(--space-sm) var(--space-md);border-radius:var(--radius);white-space:pre-wrap;overflow-wrap:break-word;border:1px solid var(--color-border);overflow-x:auto}.post-content pre code{font-size:var(--font-size-sm);overflow-wrap:break-word;background:0 0;padding:0}.post-content table{width:100%;margin-block:var(--space-md);border-collapse:collapse;font-size:var(--font-size-sm);display:block;overflow-x:auto}.post-content th,.post-content td{border:1px solid var(--color-border);text-align:start;padding:.5em .75em}.post-content th{background:var(--color-surface)}.post-content img{block-size:auto;max-inline-size:100%;margin-block:var(--space-md);border-radius:var(--radius);cursor:zoom-in}.post-content a:has(>img){display:contents}.post-content img.img-border{border:1px solid var(--color-border);padding:var(--space-sm)}.post-content img.img-bg-dark{background:color-mix(in oklch, var(--color-fixed-dark) 85%, transparent);padding:var(--space-sm)}.post-content img.img-bg-light{background:color-mix(in oklch, var(--color-fixed-light) 85%, transparent);padding:var(--space-sm)}.post-content .img-row{align-items:flex-start;gap:var(--space-md);margin-block:var(--space-md);flex-wrap:wrap;display:flex}.post-content .img-row img{max-inline-size:11rem;margin-block:0}.post-content figure{margin:var(--space-md) 0}.post-content figure img{margin-block-end:0;margin-inline:auto}.post-content figcaption{font-size:var(--font-size-sm);color:var(--color-text-muted);text-align:center;margin-block-start:var(--space-xs)}.post-content hr{margin-block:var(--space-lg);border:none;border-block-start:1px solid var(--color-border)}.post-content a{text-underline-offset:3px;transition:color .15s,text-underline-offset .15s}.post-content a:not(.badge):not(.btn-primary):hover,.post-content a:not(.badge):not(.btn-primary):focus-visible{color:var(--color-link-hover);text-underline-offset:1px}@media (prefers-reduced-motion:reduce){.post-content a{transition:none}}@keyframes vt-hold{0%{opacity:1}to{opacity:1}}@keyframes vt-slide-up-in{0%{transform:translateY(100vh)}to{transform:translateY(0)}}@keyframes vt-slide-down-out{0%{transform:translateY(0)}to{transform:translateY(100vh)}}:root[data-astro-transition=enter-post]::view-transition-old(root){animation:vt-hold var(--vt-duration-post) forwards}:root[data-astro-transition=enter-post]::view-transition-new(root){animation:vt-slide-up-in var(--vt-duration-post) var(--ease-out) forwards}:root[data-astro-transition=leave-post]::view-transition-old(root){animation:vt-slide-down-out 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