@font-face{font-family:Manrope;src:url('/assets/manrope-latin.woff2') format('woff2');font-weight:400 800;font-display:swap}
:root{--ink:#183d35;--deep:#123e36;--deepest:#0b2c25;--green:#38715b;--lime:#d9ed92;--paper:#f8f9f4;--white:#fff;--muted:#65736c;--line:#dfe5dc;--soft:#edf1e8;--orange:#e5a16d;--shadow:0 20px 60px #173e3510;--radius:20px;--font:Manrope,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif}
*,*::before,*::after{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:100px}body{margin:0;background:var(--paper);color:var(--ink);font:15px/1.65 var(--font);-webkit-font-smoothing:antialiased}button,input,select,textarea{font:inherit;color:inherit}button,a,input,select,textarea{-webkit-tap-highlight-color:transparent}button,a{touch-action:manipulation}button{cursor:pointer}a{color:inherit;text-decoration:none}img,svg{vertical-align:middle}img{max-width:100%;height:auto}p,h1,h2,h3,h4{margin:0}h1,h2,h3{line-height:1.16;letter-spacing:-.045em}h1{font-size:clamp(36px,5.2vw,64px);font-weight:750}h2{font-size:clamp(27px,3vw,38px);font-weight:700}h3{font-size:20px;letter-spacing:-.025em}p{text-wrap:pretty}button{border:0}button:disabled{cursor:wait;opacity:.6}:focus-visible{outline:3px solid #548f79;outline-offset:4px}input:focus-visible,select:focus-visible,textarea:focus-visible{outline-offset:1px}.icon{flex-shrink:0;display:inline-block;width:22px;height:22px}.wrap{width:min(1180px,calc(100% - 64px));margin-inline:auto}.section{padding-block:86px}.eyebrow{font-size:10px;font-weight:800;letter-spacing:.16em;line-height:1.6;text-transform:uppercase;color:var(--green);display:flex;gap:9px;align-items:center;margin-bottom:18px}.eyebrow .icon{width:16px;height:16px}.overline{font-size:9px;font-weight:800;letter-spacing:.14em;color:var(--muted)}.muted{color:var(--muted);font-size:12px}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}[hidden]{display:none!important}.skip-link{position:fixed;top:8px;left:12px;z-index:999;background:var(--deep);color:#fff;padding:10px 20px;transform:translateY(-200%);border-radius:8px}.skip-link:focus{transform:none}.button{display:inline-flex;align-items:center;justify-content:center;gap:16px;padding:14px 22px;min-height:49px;font-size:13px;font-weight:750;border-radius:10px;transition:background .18s,transform .18s}.button:hover{transform:translateY(-2px)}.button-dark{background:var(--deep);color:white}.button-dark:hover{background:#225347}.button-lime{background:var(--lime);color:var(--deep)}.button-outline{background:transparent;border:1px solid #bac9bc;color:var(--deep)}.button-outline:hover{background:var(--soft)}.text-link{display:inline-flex;align-items:center;gap:14px;font-size:12px;font-weight:800}.text-link:hover{text-decoration:underline;text-underline-offset:5px}.icon-button{display:inline-flex;align-items:center;justify-content:center;min-width:42px;min-height:42px;background:transparent;border-radius:50%;color:var(--ink);transition:background .18s}.icon-button:hover{background:var(--soft)}.icon-tile{display:inline-flex;align-items:center;justify-content:center;width:48px;height:48px;border-radius:13px;background:#e8efdb;color:#325f41}.icon-tile .icon{width:25px;height:25px}.color-datum-zeit{background:#e4edfa;color:#4b6b90}.color-mathematik{background:#eae4f6;color:#78629d}.color-schule{background:#f8ead0;color:#9c7339}.color-geld-wohnen{background:#f5e4db;color:#a36e4d}.color-alltag{background:#f6e3e7;color:#a75e75}.color-physik{background:#e0ecea;color:#3f7a72}
.site-header{height:86px;background:#f8f9f4ed;border-bottom:1px solid var(--line);position:sticky;top:0;z-index:50;backdrop-filter:blur(14px)}.header-inner{height:100%;width:min(1320px,calc(100% - 64px));margin:auto;display:flex;align-items:center;justify-content:space-between;gap:28px}.brand{display:inline-flex;gap:10px;align-items:center;font-size:21px;font-weight:800;letter-spacing:-1px;white-space:nowrap}.brand-dot{color:#819c4e}.desktop-nav{display:flex;gap:29px;align-items:center;font-size:12px;font-weight:650}.desktop-nav a{position:relative;padding:30px 0}.desktop-nav a:hover,.desktop-nav a[aria-current]{color:var(--green)}.desktop-nav a[aria-current]::after{content:"";height:2px;position:absolute;bottom:17px;left:0;right:0;background:var(--green)}.header-actions{display:flex;align-items:center;gap:15px}.search-trigger{background:transparent;display:flex;align-items:center;gap:9px;font-size:12px;padding:8px 0}.search-trigger .icon{width:18px}.search-trigger kbd{border:1px solid #d5ddd3;border-radius:4px;padding:0 5px;font-family:inherit;color:var(--muted);margin-left:17px}.saved-link{border-left:1px solid var(--line);border-radius:0;padding-left:19px;position:relative}.saved-link [data-fav-count]{position:absolute;font-size:9px;right:-3px;top:0;min-width:16px;line-height:16px;text-align:center;border-radius:50%;background:var(--deep);color:white}.mobile-menu,.mobile-nav{display:none}
.hero{display:grid;grid-template-columns:1.08fr 1fr;gap:55px;padding-top:80px;padding-bottom:81px;align-items:center;min-height:650px}.hero h1{font-size:clamp(43px,5.2vw,65px);line-height:1.08;font-weight:750;letter-spacing:-.055em;margin-bottom:24px}.hero .highlight{position:relative;z-index:1;white-space:nowrap}.hero .highlight::after{content:"";position:absolute;z-index:-1;background:var(--lime);height:13px;bottom:8px;left:1px;right:0;transform:rotate(-1deg);border-radius:1px}.live-dot{width:6px;height:6px;border-radius:50%;background:#5d8453;box-shadow:0 0 0 4px #e9efd9;margin-right:4px}.hero-description{max-width:440px;font-size:14px;line-height:1.9;color:var(--muted);margin-bottom:26px}.hero-search{display:flex;align-items:center;gap:12px;background:white;box-shadow:0 6px 20px #193e3505;border:1px solid #dce3d7;border-radius:11px;padding:7px 7px 7px 17px;max-width:480px}.hero-search>.icon{color:#7d8c7f;width:19px}.hero-search input{border:0;outline:0;background:transparent;min-width:0;flex:1;font-size:12px}.hero-search input:focus-visible{outline:none}.hero-search:focus-within{outline:2px solid #789d84;outline-offset:2px}.hero-search button{background:var(--deep);color:var(--lime);border-radius:7px;width:42px;height:42px;flex-shrink:0}.search-suggestions{display:flex;gap:8px;align-items:center;flex-wrap:wrap;margin-top:13px;font-size:10px}.search-suggestions>span{color:var(--muted);margin-right:3px}.search-suggestions a{border:1px solid #dfe4d8;border-radius:6px;padding:3px 8px;transition:background .15s}.search-suggestions a:hover{background:var(--lime)}.hero-proof{display:flex;gap:20px;margin-top:27px;font-size:10px;font-weight:600;color:#6c7e6e}.hero-proof span{display:flex;align-items:center;gap:6px}.hero-proof .icon{width:14px;height:14px}.hero-visual{position:relative;padding:19px 20px 20px 12px;isolation:isolate;min-width:0}.quick-calculator{position:relative;z-index:2;background:white;border:1px solid #e0e7db;border-radius:20px;box-shadow:0 24px 70px #1c4a3a12;padding:28px 28px 0;transform:rotate(1.5deg)}.quick-top{display:flex;gap:12px;align-items:center;margin-bottom:30px}.quick-top .icon-tile{width:40px;height:40px;border-radius:11px}.quick-top h2{font-size:14px;letter-spacing:-.025em;margin-top:5px;line-height:1.4}.tiny-dots{margin-left:auto;font-size:24px;color:#9ba697}.quick-calculator>label{font-size:11px;display:block;font-weight:650;margin-bottom:9px}.quick-input{display:flex;align-items:center;background:#f8faf4;border:1px solid var(--line);border-radius:9px;padding:7px 15px}.quick-input input{background:transparent;border:0;outline:0;font-size:26px;font-weight:650;width:100%;min-width:0;letter-spacing:-.04em}.quick-input input:focus-visible{outline:none}.quick-input:focus-within{outline:2px solid #7f9b76}.quick-input span{padding-left:15px;border-left:1px solid var(--line);font-size:15px;color:var(--muted)}.conversion-divider{display:flex;align-items:center;gap:12px;font-size:9px;color:#8b9588;margin-top:20px}.conversion-divider span:first-child,.conversion-divider span:last-child{height:1px;background:#edf0e8;flex:1}.quick-result{text-align:center;padding:12px 0 3px}.quick-result span:first-child{display:block;font-size:49px;letter-spacing:-.06em;font-weight:750;line-height:1.2;overflow-wrap:anywhere}.quick-result span:last-child{font-size:11px;color:var(--muted)}.area-illustration{position:relative;height:95px;display:flex;gap:4px;align-items:center;justify-content:center;margin-top:3px}.area-block{height:42px;width:42px;background:#d6e5aa;border:1px solid #9fba75;background-image:linear-gradient(#ffffff60 1px,transparent 1px),linear-gradient(90deg,#ffffff60 1px,transparent 1px);background-size:10px 10px;transform:skewY(-7deg)}.area-block.a2{height:42px;width:42px;background-color:#bfd489}.area-block.a3{width:21px}.area-illustration>span{position:absolute;bottom:3px;font-size:9px;color:#8a9680}.quick-footer{border-top:1px solid #edf0e8;margin:22px -28px 0;padding:14px 22px;display:flex;align-items:center;justify-content:space-between;color:var(--muted);font-size:9px}.quick-footer span{display:flex;align-items:center;gap:5px}.quick-footer .icon{width:13px;height:13px}.quick-footer a{color:var(--ink)}.quick-footer a .icon{width:18px;height:18px}.orb{position:absolute;z-index:-1;border-radius:50%}.orb-one{background:#e9efd9;width:390px;height:390px;right:-20px;top:20px}.orb-two{border:1px dashed #cedab8;width:450px;height:450px;right:-50px;top:-10px}.math-note{position:absolute;font-family:Georgia,serif;font-style:italic;color:#718956}.math-note-one{top:-15px;right:30px;font-size:28px;transform:rotate(12deg)}.math-note-two{bottom:-14px;left:0;font-size:21px;transform:rotate(-8deg)}.floating-label{position:absolute;right:-18px;bottom:44px;z-index:3;display:flex;align-items:center;gap:12px;padding:14px 19px;background:var(--deep);color:#e4efcf;box-shadow:0 10px 20px #123e3520;border-radius:12px;transform:rotate(-5deg);font-size:10px;line-height:1.7}.floating-label .icon{color:var(--lime);width:26px;height:26px}.floating-label strong{font-weight:600;color:white}.promise-strip{border-block:1px solid var(--line);background:#f0f3e9}.promise-strip .wrap{display:flex;align-items:center;justify-content:space-between;gap:20px;min-height:78px;color:#64755f;font-size:12px}.promise-strip span{display:flex;align-items:center;gap:10px}.promise-strip strong{font-size:24px;color:var(--deep);font-weight:700}.promise-strip .icon{width:19px;height:19px;color:#78926b}.section-heading{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:30px}.section-heading .eyebrow{margin-bottom:12px}.section-heading h2{font-size:31px}.section-heading .text-link{padding-bottom:5px}.section-note{font-size:11px;color:var(--muted);max-width:225px;text-align:right;line-height:1.8}.category-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}.category-card{background:white;border:1px solid var(--line);border-radius:14px;padding:22px;transition:transform .2s,border-color .2s}.category-card:hover{transform:translateY(-4px);border-color:#a3b697}.category-card h3{font-size:15px;margin:20px 0 10px;letter-spacing:-.025em}.category-card>span:last-child{display:flex;align-items:center;justify-content:space-between;color:var(--muted);font-size:10px}.category-card>span:last-child .icon{width:15px;height:15px}.category-card:last-child{grid-column:auto}.popular-section{background:#f0f2ea;border-block:1px solid #e8ecdf}.tool-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}.tool-card{position:relative;display:flex;flex-direction:column;padding:23px;background:white;border:1px solid var(--line);border-radius:16px;transition:transform .2s,box-shadow .2s,border-color .2s;min-width:0}.tool-card:hover{transform:translateY(-4px);box-shadow:0 12px 25px #163d3509;border-color:#b9c8b3}.card-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:22px}.favorite{position:relative;z-index:2;color:#9ca79a;min-height:36px;min-width:36px}.favorite .icon{width:18px;height:18px}.favorite[aria-pressed=true],button[data-favorite][aria-pressed=true]{color:var(--deep);background:#edf3dd}.favorite[aria-pressed=true] .icon{fill:var(--lime)}.card-category{font-size:9px;text-transform:uppercase;letter-spacing:.1em;font-weight:650;color:#7b8875;margin-bottom:10px}.tool-card h3{font-size:19px;line-height:1.3;margin-bottom:9px}.tool-card h3 a::after{content:"";position:absolute;inset:0;border-radius:16px}.card-intro{font-size:11px;line-height:1.9;color:var(--muted);margin-bottom:24px;flex:1}.card-bottom{border-top:1px solid #edf0e8;padding-top:14px;font-size:10px;font-weight:750;display:flex;align-items:center;justify-content:space-between}.card-bottom .icon{width:17px;height:17px}.center-action{text-align:center;margin-top:35px}.approach{display:grid;grid-template-columns:1fr 1.15fr;gap:100px}.approach-heading h2{font-size:43px;line-height:1.2;margin-bottom:28px;letter-spacing:-.045em}.approach-heading em{font-family:Georgia,serif;font-weight:400;color:#688459}.approach-list article{display:flex;gap:25px;padding:24px 0;border-bottom:1px solid var(--line)}.approach-list article:first-child{padding-top:0}.approach-list article>span{font-size:13px;color:#91a17f;padding-top:2px}.approach-list h3{font-size:18px;margin-bottom:12px}.approach-list p{font-size:12px;color:var(--muted);line-height:1.9}.home-faq{display:grid;grid-template-columns:1fr 1.4fr;gap:80px;padding:0 0 90px}.home-faq>div>p:last-child{font-size:12px;color:var(--muted);margin-top:15px}.faq-list details{border-bottom:1px solid var(--line)}.faq-list summary{position:relative;cursor:pointer;list-style:none;padding:19px 30px 19px 0;font-size:13px;font-weight:700;line-height:1.6}.faq-list summary::-webkit-details-marker{display:none}.faq-list summary::after{content:"+";position:absolute;right:4px;top:16px;font-weight:400;font-size:23px;color:#6d8a59}.faq-list details[open] summary::after{content:"−"}.faq-list p{padding:0 20px 20px 0;color:var(--muted);font-size:12px;line-height:1.9}
.breadcrumb{display:flex;align-items:center;flex-wrap:wrap;gap:9px;font-size:10px;color:#7b8779;margin-bottom:34px;line-height:1.8}.breadcrumb a:hover{text-decoration:underline}.breadcrumb>span:last-child{color:var(--ink)}.listing-head{padding:34px 0 35px}.listing-head h1{font-size:46px;max-width:840px}.listing-head>p:last-child{color:var(--muted);font-size:14px;margin-top:20px;max-width:720px}.catalog-section{padding-bottom:90px}.catalog-toolbar{display:flex;align-items:center;gap:15px;padding:18px 0;margin-bottom:20px;border-bottom:1px solid var(--line)}.catalog-search{background:white;border:1px solid var(--line);border-radius:9px;display:flex;align-items:center;gap:12px;padding:11px 15px;flex:1;max-width:500px}.catalog-search .icon{width:18px;color:var(--muted)}.catalog-search input{border:0;outline:0;background:transparent;font-size:12px;width:100%;min-width:0}.catalog-search:focus-within{outline:2px solid #789d84;outline-offset:2px}.catalog-select select{padding:13px 30px 13px 13px;border:1px solid var(--line);border-radius:9px;font-size:12px;background:white;max-width:250px}.result-count{font-size:11px;margin-left:auto;white-space:nowrap;color:var(--muted)}.result-count strong{color:var(--ink)}.empty-state{text-align:center;padding:70px 20px;max-width:650px;margin:auto}.empty-state>.icon{width:40px;height:40px;color:#94a383;margin-bottom:20px}.empty-state h2{font-size:27px;margin-bottom:15px}.empty-state p{font-size:13px;color:var(--muted);margin-bottom:23px}
.tool-heading{padding:32px 0 29px}.tool-title-row{display:flex;align-items:center;justify-content:space-between;gap:50px}.tool-title-row h1{font-size:48px;margin-bottom:18px}.tool-title-row .eyebrow{margin-bottom:12px}.tool-title-row>.button{flex-shrink:0;font-size:11px;min-height:44px;padding:10px 14px}.tool-intro{color:var(--muted);max-width:775px;font-size:14px;line-height:1.85}.tool-meta{display:flex;align-items:center;gap:24px;font-size:10px;margin-top:23px;color:#6c8065}.tool-meta>span{display:flex;gap:6px;align-items:center}.tool-meta .icon{width:14px;height:14px}.tool-meta a{margin-left:auto;text-decoration:underline;text-underline-offset:4px}.calculator-section{margin-bottom:55px}.calculator-loading{padding:90px 30px;background:white;border:1px solid var(--line);border-radius:20px;text-align:center;color:var(--muted);font-size:13px}.calculator-loading>span{display:inline-block;height:12px;width:12px;border-radius:50%;background:var(--lime);margin-right:10px}.calculator-grid{display:grid;grid-template-columns:1.05fr 1fr;box-shadow:var(--shadow);border:1px solid #dce4d6;border-radius:20px;overflow:hidden;background:white}.calculator-form{padding:35px}.calculator-panel-title{display:flex;align-items:center;justify-content:space-between;margin-bottom:27px}.calculator-panel-title h2{font-size:18px;letter-spacing:-.02em}.calculator-panel-title>span{font-size:9px;color:#89947f;text-transform:uppercase;letter-spacing:.1em}.form-fields{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:19px 16px}.field{display:flex;flex-direction:column;min-width:0;gap:7px}.field.field-wide{grid-column:1/-1}.field>label{font-weight:750;font-size:11px;line-height:1.7}.field input,.field select,.field textarea{width:100%;min-width:0;border:1px solid #d9e1d3;border-radius:8px;background:#fafbf7;padding:12px 13px;min-height:47px;font-size:14px}.field input[type=date]{min-width:0;max-width:100%}.field textarea{resize:vertical;min-height:130px}.field select{padding-right:30px;font-size:12px}.field small{font-size:10px;color:#7b8676;line-height:1.7}.field.field-invalid input,.field.field-invalid select{border-color:#aa4e36;background:#fff6f0}.form-actions{display:flex;gap:12px;align-items:center;margin-top:24px}.form-actions .button{flex:1}.form-actions .reset-button{border:1px solid var(--line);border-radius:10px;background:white;width:49px;height:49px}.form-help{font-size:10px;color:#7a8774;margin-top:15px;display:flex;gap:7px;align-items:center}.form-help .icon{width:13px;height:13px}.form-error{border:1px solid #e4b9a6;background:#fff5ef;color:#873a25;padding:12px 15px;border-radius:8px;margin-top:15px;font-size:12px}.result-panel{background:var(--deep);padding:35px;color:#f8faf0;display:flex;flex-direction:column;position:relative;min-width:0}.result-top{display:flex;align-items:center;justify-content:space-between;font-size:10px;letter-spacing:.12em;text-transform:uppercase;color:#b0c4af}.result-top .icon{width:18px;height:18px;color:var(--lime)}.result-main{padding:28px 0 23px;border-bottom:1px solid #446557;min-width:0}.result-value{font-size:clamp(30px,4.4vw,55px);line-height:1.2;letter-spacing:-.05em;font-weight:650;color:var(--lime);overflow-wrap:anywhere;display:block}.result-value.result-text{font-size:28px;line-height:1.4;letter-spacing:-.025em}.result-unit{font-size:13px;line-height:1.9;color:#c5d5be;margin-top:8px;display:block}.result-details{display:grid;gap:0;font-size:11px;line-height:1.8;margin:17px 0 20px}.result-details>div{display:flex;gap:15px;justify-content:space-between;padding:7px 0;border-bottom:1px solid 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