@import"https://interactive.zeit.de/pembed-visual-article/cssOnlyHeaderNoImage.css";:root{--2023-mathetest-duv-color-bwscale-100: #ffffff;--2023-mathetest-duv-color-bwscale-95: #f7f7f7;--2023-mathetest-duv-color-bwscale-90: #efeff0;--2023-mathetest-duv-color-bwscale-85: #e3e4e5;--2023-mathetest-duv-color-bwscale-80: #dbdbde;--2023-mathetest-duv-color-bwscale-65: #bcbdc1;--2023-mathetest-duv-color-bwscale-55: #a6a7ac;--2023-mathetest-duv-color-bwscale-45: #8f9094;--2023-mathetest-duv-color-bwscale-35: #76767b;--2023-mathetest-duv-color-bwscale-20: #4d4d51;--2023-mathetest-duv-color-bwscale-15: #3f3e42;--2023-mathetest-duv-color-bwscale-10: #313033;--2023-mathetest-duv-color-bwscale-5: #222124;--2023-mathetest-duv-color-bwscale-0: #000000;--2023-mathetest-duv-size-width-content-column: 41.25rem;--2023-mathetest-duv-size-border-radius-m: .25rem;--2023-mathetest-duv-size-border-radius-s: .125rem;--2023-mathetest-duv-size-2xs: .2rem;--2023-mathetest-duv-size-3xs: .1rem;--2023-mathetest-duv-size-xl: 3.75rem;--2023-mathetest-duv-size-xs: .3rem;--2023-mathetest-duv-size-s: .6rem;--2023-mathetest-duv-size-m: 1.25rem;--2023-mathetest-duv-size-l: 2.4rem;--2023-mathetest-duv-size-padding-page-small: .875rem;--2023-mathetest-duv-size-padding-page-large: 1.25rem;--2023-mathetest-duv-color-shades-100: var(--2023-mathetest-duv-color-bwscale-100);--2023-mathetest-duv-color-shades-95: var(--2023-mathetest-duv-color-bwscale-95);--2023-mathetest-duv-color-shades-90: var(--2023-mathetest-duv-color-bwscale-90);--2023-mathetest-duv-color-shades-80: var(--2023-mathetest-duv-color-bwscale-80);--2023-mathetest-duv-color-shades-65: var(--2023-mathetest-duv-color-bwscale-65);--2023-mathetest-duv-color-shades-45: var(--2023-mathetest-duv-color-bwscale-45);--2023-mathetest-duv-color-shades-15: var(--2023-mathetest-duv-color-bwscale-15);--2023-mathetest-duv-color-shades-10: var(--2023-mathetest-duv-color-bwscale-10);--2023-mathetest-duv-color-shades-5: var(--2023-mathetest-duv-color-bwscale-5);--2023-mathetest-duv-color-shades-0: var(--2023-mathetest-duv-color-bwscale-0);--2023-mathetest-duv-size-margin-paragraph: var(--2023-mathetest-duv-size-s);--2023-mathetest-duv-size-margin-s: var(--2023-mathetest-duv-size-s);--2023-mathetest-duv-size-margin-m: var(--2023-mathetest-duv-size-m);--2023-mathetest-duv-size-margin-l: var(--2023-mathetest-duv-size-l);--2023-mathetest-duv-size-margin-xs: var(--2023-mathetest-duv-size-xs);--2023-mathetest-duv-size-padding-s: var(--2023-mathetest-duv-size-2xs);--2023-mathetest-duv-size-padding-l: var(--2023-mathetest-duv-size-s);--2023-mathetest-duv-color-background-primary: var(--2023-mathetest-duv-color-shades-100);--2023-mathetest-duv-color-background-tertiary: var(--2023-mathetest-duv-color-shades-90);--2023-mathetest-duv-color-border-tertiary: var(--2023-mathetest-duv-color-shades-90);--2023-mathetest-duv-color-border-primary: var(--2023-mathetest-duv-color-shades-80);--2023-mathetest-duv-color-text-primary: var(--2023-mathetest-duv-color-shades-5);--2023-mathetest-duv-color-text-secondary: var(--2023-mathetest-duv-color-shades-45);--2023-mathetest-duv-color-text-tertiary: var(--2023-mathetest-duv-color-shades-65);--2023-mathetest-duv-color-headline-primary: var(--2023-mathetest-duv-color-shades-10);}html.color-scheme-dark,figure.color-scheme-dark{--2023-mathetest-duv-color-bwscale-100: #ffffff;--2023-mathetest-duv-color-bwscale-95: #f7f7f7;--2023-mathetest-duv-color-bwscale-90: #efeff0;--2023-mathetest-duv-color-bwscale-85: #e3e4e5;--2023-mathetest-duv-color-bwscale-80: #dbdbde;--2023-mathetest-duv-color-bwscale-65: #bcbdc1;--2023-mathetest-duv-color-bwscale-55: #a6a7ac;--2023-mathetest-duv-color-bwscale-45: #8f9094;--2023-mathetest-duv-color-bwscale-35: #76767b;--2023-mathetest-duv-color-bwscale-20: #4d4d51;--2023-mathetest-duv-color-bwscale-15: #3f3e42;--2023-mathetest-duv-color-bwscale-10: #313033;--2023-mathetest-duv-color-bwscale-5: #222124;--2023-mathetest-duv-color-bwscale-0: #000000;--2023-mathetest-duv-color-background-primary: #121212;--2023-mathetest-duv-color-shades-100: var(--2023-mathetest-duv-color-bwscale-0);--2023-mathetest-duv-color-shades-95: var(--2023-mathetest-duv-color-bwscale-5);--2023-mathetest-duv-color-shades-90: var(--2023-mathetest-duv-color-bwscale-10);--2023-mathetest-duv-color-shades-80: var(--2023-mathetest-duv-color-bwscale-20);--2023-mathetest-duv-color-shades-65: var(--2023-mathetest-duv-color-bwscale-35);--2023-mathetest-duv-color-shades-45: var(--2023-mathetest-duv-color-bwscale-55);--2023-mathetest-duv-color-shades-15: var(--2023-mathetest-duv-color-bwscale-85);--2023-mathetest-duv-color-shades-10: var(--2023-mathetest-duv-color-bwscale-90);--2023-mathetest-duv-color-shades-5: var(--2023-mathetest-duv-color-bwscale-95);--2023-mathetest-duv-color-shades-0: var(--2023-mathetest-duv-color-bwscale-100);--2023-mathetest-duv-color-background-tertiary: var(--2023-mathetest-duv-color-shades-90);--2023-mathetest-duv-color-border-tertiary: var(--2023-mathetest-duv-color-shades-90);--2023-mathetest-duv-color-border-primary: var(--2023-mathetest-duv-color-shades-80);--2023-mathetest-duv-color-text-primary: var(--2023-mathetest-duv-color-shades-0);--2023-mathetest-duv-color-text-secondary: var(--2023-mathetest-duv-color-shades-45);--2023-mathetest-duv-color-text-tertiary: var(--2023-mathetest-duv-color-shades-65);--2023-mathetest-duv-color-headline-primary: var(--2023-mathetest-duv-color-shades-10);}@media (prefers-color-scheme: dark){html:not(.color-scheme-light){--2023-mathetest-duv-color-bwscale-100: #ffffff;--2023-mathetest-duv-color-bwscale-95: #f7f7f7;--2023-mathetest-duv-color-bwscale-90: #efeff0;--2023-mathetest-duv-color-bwscale-85: #e3e4e5;--2023-mathetest-duv-color-bwscale-80: #dbdbde;--2023-mathetest-duv-color-bwscale-65: 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var(--2023-mathetest-duv-color-bwscale-85);--2023-mathetest-duv-color-shades-10: var(--2023-mathetest-duv-color-bwscale-90);--2023-mathetest-duv-color-shades-5: var(--2023-mathetest-duv-color-bwscale-95);--2023-mathetest-duv-color-shades-0: var(--2023-mathetest-duv-color-bwscale-100);--2023-mathetest-duv-color-background-tertiary: var(--2023-mathetest-duv-color-shades-90);--2023-mathetest-duv-color-border-tertiary: var(--2023-mathetest-duv-color-shades-90);--2023-mathetest-duv-color-border-primary: var(--2023-mathetest-duv-color-shades-80);--2023-mathetest-duv-color-text-primary: var(--2023-mathetest-duv-color-shades-0);--2023-mathetest-duv-color-text-secondary: var(--2023-mathetest-duv-color-shades-45);--2023-mathetest-duv-color-text-tertiary: var(--2023-mathetest-duv-color-shades-65);--2023-mathetest-duv-color-headline-primary: var(--2023-mathetest-duv-color-shades-10);}}:root{--2023-mathetest-duv-color-bwscale-100--rgb: 255, 255, 255;--2023-mathetest-duv-color-bwscale-95--rgb: 247, 247, 247;--2023-mathetest-duv-color-bwscale-5--rgb: 34, 33, 36;--2023-mathetest-duv-color-bwscale-0--rgb: 0, 0, 0;--2023-mathetest-duv-color-shades-100--rgb: var(--2023-mathetest-duv-color-bwscale-100--rgb);--2023-mathetest-duv-color-shades-5--rgb: var(--2023-mathetest-duv-color-bwscale-5--rgb);--2023-mathetest-duv-color-shades-0--rgb: var(--2023-mathetest-duv-color-bwscale-0--rgb);--2023-mathetest-duv-color-background-primary--rgb: var(--2023-mathetest-duv-color-shades-100--rgb);--2023-mathetest-duv-color-text-primary--rgb: var(--2023-mathetest-duv-color-shades-5--rgb);}html.color-scheme-dark,figure.color-scheme-dark{--2023-mathetest-duv-color-bwscale-100--rgb: 255, 255, 255;--2023-mathetest-duv-color-bwscale-95--rgb: 247, 247, 247;--2023-mathetest-duv-color-bwscale-5--rgb: 34, 33, 36;--2023-mathetest-duv-color-bwscale-0--rgb: 0, 0, 0;--2023-mathetest-duv-color-background-primary--rgb: 18, 18, 18;--2023-mathetest-duv-color-shades-100--rgb: 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var(--2023-mathetest-duv-color-shades-0--rgb);}}:root{--2023-mathetest-duv-size-type-letter-spacing-l: .08em;--2023-mathetest-duv-size-type-s: .875rem;--2023-mathetest-duv-size-type-letter-spacing-s: .03em;--2023-mathetest-duv-size-type-responsive-xs: .625rem;--2023-mathetest-duv-size-type-responsive-s: .75rem;--2023-mathetest-duv-size-type-responsive-m: 1rem;--2023-mathetest-duv-size-type-letter-spacing-responsive-xs: .05em;--2023-mathetest-duv-size-type-letter-spacing-responsive-s: .05em;--2023-mathetest-duv-size-type-letter-spacing-responsive-m: .03em;}@media screen and (min-width: 48em){:root{--2023-mathetest-duv-size-type-responsive-xs: .6875rem;--2023-mathetest-duv-size-type-responsive-s: .875rem;--2023-mathetest-duv-size-type-responsive-m: 1.125rem;--2023-mathetest-duv-size-type-letter-spacing-responsive-xs: .05em;--2023-mathetest-duv-size-type-letter-spacing-responsive-s: .03em;--2023-mathetest-duv-size-type-letter-spacing-responsive-m: 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