:root{--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light;--ink:#17201c;--ink-soft:#34413a;--muted:#526159;--line:#d9e1dc;--paper:#f8faf8;--white:#fff;--sand:#f1eee7;--accent-2:#d7aa55;--radius-sm:12px;--radius:22px;--radius-lg:32px;--font-display:"Iowan Old Style", "Palatino Linotype", Palatino, Georgia, serif;--font-sans:Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;--shadow-sm:0 12px 34px #17201c12;--shadow:0 24px 70px 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var(--paper) 34rem)}.site-shell[data-site=regneklar]{--accent-2:#d5a449}.site-shell[data-site=terminklar]{--accent-2:#d899a9;--ink:#231b1e;--ink-soft:#4a3b40}.site-shell[data-site=datoklar]{--accent-2:#dfaa3d;--ink:#15212a;--ink-soft:#354a58}.site-shell[data-site=byggeberegner]{--accent-2:#d39c50;--ink:#241d18;--ink-soft:#4d4038}.site-shell[data-site=stroemregner]{--accent-2:#87bda4;--ink:#14221f;--ink-soft:#334d48}.site-shell[data-site=kropstal]{--accent-2:#c893a4;--ink:#211f2c;--ink-soft:#454154}.container{width:min(1180px,100% - 40px);margin-inline:auto}.skip-link{z-index:100;color:#fff;background:var(--ink);border-radius:10px;padding:11px 16px;position:fixed;top:-90px;left:16px}.skip-link:focus{top:16px}.eyebrow{color:var(--accent-dark);letter-spacing:.14em;text-transform:uppercase;margin:0 0 10px;font-size:.74rem;font-weight:850;line-height:1.45}.lead{max-width:62ch;color:var(--muted);margin:24px 0;font-size:clamp(1.06rem,2vw,1.3rem);line-height:1.62}.text-link{color:var(--accent-dark);text-underline-offset:3px;font-weight:780}.primary-button,.secondary-button{color:#fff;background:var(--accent);cursor:pointer;border:0;border-radius:13px;justify-content:center;align-items:center;min-height:50px;padding:0 22px;font-weight:800;text-decoration:none;transition:transform .18s,box-shadow .18s,background .18s;display:inline-flex}.primary-button:hover,.secondary-button:hover{box-shadow:0 12px 26px color-mix(in srgb, var(--accent-dark) 22%, transparent);transform:translateY(-2px)}.utility-bar{color:#fff;background:var(--accent-dark);font-size:.72rem}.utility-bar>nav{justify-content:flex-end;align-items:center;gap:24px;width:min(1180px,100% - 40px);min-height:32px;margin:auto;display:flex}.utility-bar span:before,.utility-bar a:before{content:"•";color:color-mix(in srgb, var(--accent-2) 78%, white);margin-right:9px}.utility-bar a{color:#fff;text-underline-offset:2px}.site-header{z-index:30;border-bottom:1px solid color-mix(in srgb, var(--line) 80%, transparent);-webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px);background:#ffffffe6;position:sticky;top:0}.header-inner{justify-content:space-between;align-items:center;gap:26px;width:min(1180px,100% - 40px);min-height:78px;margin:auto;display:flex}.brand{min-width:0;color:var(--ink);align-items:center;gap:11px;text-decoration:none;display:inline-flex}.brand-mark{color:#fff;background:var(--accent);width:36px;height:36px;box-shadow:inset 0 0 0 1px #ffffff38, 0 8px 18px color-mix(in srgb, var(--accent) 24%, transparent);border-radius:11px;flex:none;place-items:center;font-size:.92rem;font-weight:900;display:grid}.site-shell[data-site=datoklar] .brand-mark{border-radius:50% 50% 10px 10px}.site-shell[data-site=byggeberegner] .brand-mark{border-radius:8px 8px 13px 13px;transform:rotate(-1deg)}.site-shell[data-site=stroemregner] .brand-mark{border-radius:50% 12px}.site-shell[data-site=kropstal] .brand-mark{border-radius:50%}.brand-copy{gap:1px;min-width:0;display:grid}.brand-copy strong{letter-spacing:-.025em;font-size:1.02rem}.brand-copy small{max-width:34ch;color:var(--muted);text-overflow:ellipsis;text-transform:uppercase;white-space:nowrap;font-size:.61rem;line-height:1.25;overflow:hidden}.desktop-nav{align-items:center;gap:23px;font-size:.91rem;display:flex}.desktop-nav>a,.nav-topics>summary{min-height:44px;color:var(--muted);cursor:pointer;align-items:center;font-weight:680;text-decoration:none;display:inline-flex}.desktop-nav>a:hover,.nav-topics>summary:hover{color:var(--accent-dark)}.nav-topics{position:relative}.nav-topics>summary{list-style:none}.nav-topics>summary::-webkit-details-marker{display:none}.nav-topics>summary:after{content:"⌄";margin-left:7px}.nav-topics>div{visibility:hidden;opacity:0;border:1px solid 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var(--line);width:min(370px,100vw - 28px);max-height:calc(100vh - 100px);box-shadow:var(--shadow);background:#fffffffc;border-radius:20px;padding:18px;position:absolute;top:calc(100% + 10px);right:0;overflow-y:auto}.mobile-menu-heading{border-bottom:1px solid var(--line);justify-content:space-between;align-items:baseline;gap:12px;padding:2px 2px 14px;display:flex}.mobile-menu-heading span{font-family:var(--font-display);font-size:1.25rem;font-weight:700}.mobile-menu-heading small{color:var(--muted);font-size:.69rem}.mobile-menu-primary{color:#fff;background:var(--accent-dark);border-radius:12px;justify-content:space-between;align-items:center;margin:13px 0 7px;padding:14px;font-weight:800;text-decoration:none;display:flex}.mobile-topic-links{gap:4px;display:grid}.mobile-topic-links a{border-radius:11px;gap:2px;padding:12px 13px;text-decoration:none;display:grid}.mobile-topic-links a:hover{background:var(--soft)}.mobile-topic-links strong{font-size:.9rem}.mobile-topic-links small{color:var(--muted);font-size:.72rem;line-height:1.42}.mobile-meta-links{border-top:1px solid var(--line);color:var(--accent-dark);gap:16px;margin-top:8px;padding:14px 2px 0;font-size:.75rem;font-weight:750;display:flex}.home-hero{grid-template-columns:1.18fr .82fr;align-items:center;gap:clamp(38px,6vw,72px);min-height:675px;padding-block:74px 88px;display:grid;position:relative}.home-hero:before{content:"";z-index:-1;background:color-mix(in srgb, var(--soft) 70%, transparent);filter:blur(14px);border-radius:50%;width:25vw;height:25vw;position:absolute;top:8%;left:-9vw}.site-shell[data-site=regneklar] .home-hero:after,.site-shell[data-site=byggeberegner] .home-hero:after{content:"";z-index:-1;opacity:.38;background-image:linear-gradient(color-mix(in srgb, var(--accent) 12%, transparent) 1px, transparent 1px), linear-gradient(90deg, color-mix(in srgb, var(--accent) 12%, transparent) 1px, transparent 1px);background-size:34px 34px;position:absolute;inset:10% 51% 10% 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strong{color:var(--accent-dark);font-family:var(--font-display);font-size:1.9rem;line-height:1}.home-metrics span{color:var(--muted);font-size:.72rem;line-height:1.4}.finder-wrap{z-index:5;margin-top:22px;position:relative}.tool-finder{border:1px solid var(--line);box-shadow:var(--shadow-sm);-webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px);background:#fffffff7;border-radius:22px;padding:23px}.tool-finder>label{justify-content:space-between;gap:20px;margin-bottom:11px;display:flex}.tool-finder>label>span{gap:1px;display:grid}.tool-finder label b{font-size:.95rem}.tool-finder label small,.tool-finder label em{color:var(--muted);font-size:.73rem;font-style:normal;font-weight:500}.finder-input{background:var(--paper);border:1px solid var(--line);border-radius:14px;grid-template-columns:23px minmax(0,1fr) auto;align-items:center;gap:10px;min-width:0;padding:0 14px;display:grid}.finder-input:focus-within{border-color:var(--accent);box-shadow:0 0 0 3px color-mix(in srgb, var(--accent) 15%, transparent)}.finder-input svg{fill:none;width:21px;stroke:var(--accent-dark);stroke-linecap:round;stroke-width:1.8px}.finder-input input{width:100%;min-width:0;min-height:54px;color:var(--ink);background:0 0;border:0;outline:0;padding:0;font-size:1rem}.finder-input button{width:34px;height:34px;color:var(--muted);border:1px solid var(--line);cursor:pointer;background:#fff;border-radius:50%;padding:0}.finder-examples{flex-wrap:wrap;align-items:center;gap:7px;margin-top:12px;display:flex}.finder-examples>span{color:var(--muted);margin-right:2px;font-size:.7rem}.finder-examples button{color:var(--accent-dark);background:var(--soft);cursor:pointer;border:0;border-radius:999px;padding:6px 9px;font-size:.7rem}.finder-result-meta{color:var(--muted);letter-spacing:.07em;text-transform:uppercase;margin:15px 2px 6px;font-size:.68rem;font-weight:780}.finder-results{grid-template-columns:repeat(3,minmax(0,1fr));gap:7px;max-height:250px;display:grid;overflow:auto}.finder-results a{border-radius:10px;grid-template-columns:minmax(0,1fr) auto;gap:1px 10px;min-width:0;padding:10px 12px;text-decoration:none;display:grid}.finder-results a:hover{background:var(--soft)}.finder-results span,.finder-results small{text-overflow:ellipsis;white-space:nowrap;overflow:hidden}.finder-results span{font-size:.84rem;font-weight:800}.finder-results small{color:var(--muted);font-size:.68rem}.finder-results b{color:var(--accent-dark);grid-area:1/2/3;align-self:center}.finder-results>p{color:var(--muted);grid-column:1/-1}.section{padding-block:94px}.section-heading{grid-template-columns:1.05fr .95fr;align-items:end;gap:40px;margin-bottom:40px;display:grid}.section-heading h2{max-width:15ch}.section-heading>p{max-width:58ch;color:var(--muted);justify-self:end;margin-bottom:20px}.card-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;display:grid}.tool-card{border:1px solid var(--line);border-radius:var(--radius);background:#fffffff0;flex-direction:column;min-width:0;min-height:445px;text-decoration:none;transition:transform .22s,border-color .22s,box-shadow .22s;display:flex;overflow:hidden;box-shadow:0 1px #fffc}.tool-card:hover{border-color:var(--accent);box-shadow:var(--shadow);transform:translateY(-5px)}.card-image{aspect-ratio:16/10;background:var(--soft);overflow:hidden}.card-image img{object-fit:cover;width:100%;height:100%;transition:transform .45s}.tool-card:hover .card-image img{transform:scale(1.035)}.card-copy{flex-direction:column;flex:1;min-width:0;padding:23px;display:flex}.card-number{color:var(--accent-dark);letter-spacing:.07em;text-transform:uppercase;font-size:.67rem;font-weight:850}.tool-card h3{margin:12px 0 10px;font-size:1.38rem}.tool-card p{color:var(--muted);margin:0 0 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li:before{content:"✓";color:#fff;background:var(--accent);border-radius:50%;place-items:center;width:21px;height:21px;font-size:.68rem;font-weight:900;display:grid;position:absolute;top:.15em;left:0}.principles-section{padding-top:32px}.principle-grid{background:var(--line);border:1px solid var(--line);border-radius:var(--radius);grid-template-columns:repeat(3,1fr);gap:1px;display:grid;overflow:hidden}.principle-grid article{background:#fff;min-height:230px;padding:29px}.principle-grid span{width:40px;height:40px;color:var(--accent-dark);background:var(--soft);border-radius:50%;place-items:center;font-size:.75rem;font-weight:900;display:grid}.principle-grid h3{margin:34px 0 9px}.principle-grid p{color:var(--muted)}.compact-directory{padding-top:30px}.directory-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:11px;display:grid}.directory-grid a{border:1px solid var(--line);background:#fff;border-radius:14px;gap:2px;min-width:0;padding:16px 38px 16px 17px;text-decoration:none;display:grid;position:relative}.directory-grid a:after{content:"↗";color:var(--accent-dark);opacity:.68;position:absolute;top:16px;right:15px}.directory-grid a:hover{border-color:var(--accent);box-shadow:var(--shadow-sm)}.directory-grid span{font-weight:800}.directory-grid small{color:var(--muted);text-overflow:ellipsis;white-space:nowrap;overflow:hidden}.method-band{color:#fff;background:var(--accent-dark);padding:86px 0;position:relative;overflow:hidden}.method-band:after{content:"%  +  =  ÷";color:#ffffff0d;font:700 clamp(6rem, 14vw, 13rem)/1 var(--font-display);white-space:nowrap;position:absolute;bottom:-60px;right:-20px}.method-band .eyebrow{color:color-mix(in srgb, var(--accent-2) 62%, white)}.method-grid{grid-template-columns:.8fr 1.2fr;gap:75px;display:grid}.method-grid ol{z-index:1;gap:14px;margin:0;padding-left:23px;display:grid;position:relative}.method-grid li{background:#ffffff12;border:1px solid #ffffff21;border-radius:13px;padding:14px 17px}.faq-list{border-top:1px solid var(--line)}.faq-list details{border-bottom:1px solid var(--line)}.faq-list summary{cursor:pointer;padding:21px 48px 21px 0;font-weight:830;list-style:none;position:relative}.faq-list summary::-webkit-details-marker{display:none}.faq-list summary:after{content:"+";width:31px;height:31px;color:var(--accent-dark);background:var(--soft);border-radius:50%;place-items:center;display:grid;position:absolute;top:17px;right:3px}.faq-list details[open] summary:after{content:"−"}.faq-list details p{max-width:75ch;color:var(--muted);margin:0;padding:0 45px 21px 0}.tool-hero{padding-block:38px 35px}.breadcrumbs{color:var(--muted);flex-wrap:wrap;gap:8px;margin-bottom:28px;font-size:.84rem;display:flex}.breadcrumbs a{text-underline-offset:3px}.tool-hero-grid{background:color-mix(in srgb, var(--soft) 64%, white);border:1px solid color-mix(in srgb, var(--accent) 13%, var(--line));border-radius:var(--radius-lg);grid-template-columns:1.18fr .82fr;align-items:center;gap:48px;padding:44px;display:grid}.tool-hero h1{max-width:14ch;font-size:clamp(2.8rem,5vw,5.25rem);line-height:.98}.tool-image{box-shadow:var(--shadow-sm)}.tool-image img{aspect-ratio:3/2;object-fit:cover;width:100%}.page-meta{flex-wrap:wrap;gap:7px;margin-top:25px;display:flex}.page-meta span{color:var(--ink-soft);border:1px solid var(--line);background:#ffffffc4;border-radius:999px;padding:7px 10px;font-size:.7rem;font-weight:750}.page-meta .status-caution{color:#704700;background:#fff3d5;border-color:#e7cb88}.tool-facts{border:1px solid var(--line);box-shadow:var(--shadow-sm);background:#fff;border-radius:18px;grid-template-columns:repeat(3,minmax(0,1fr));margin-top:13px;display:grid;overflow:hidden}.tool-facts>div{border-right:1px solid var(--line);min-width:0;padding:18px 20px}.tool-facts>div:last-child{border-right:0}.tool-facts span{color:var(--accent-dark);letter-spacing:.08em;text-transform:uppercase;font-size:.65rem;font-weight:850}.tool-facts 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