:root{color-scheme:light;--color-ink: #10201b;--color-muted: #5f706a;--color-line: #dbe7e1;--color-surface: #ffffff;--color-surface-soft: #f5faf7;--color-primary: #074c3a;--color-primary-strong: #033326;--color-accent: #c8ff3d;--color-coral: #ff6b57;--color-teal: #0ea5a3;--color-sky: #dff6ff;--shadow-soft: 0 24px 60px rgb(10 55 40 / 12%);--max-width: 1180px;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif}*{box-sizing:border-box}html{scroll-behavior:smooth;background:var(--color-surface)}body{margin:0;min-width:320px;color:var(--color-ink);background:linear-gradient(180deg,#fff0 0,#fff 560px),repeating-linear-gradient(135deg,rgb(7 76 58 / 5%) 0,rgb(7 76 58 / 5%) 1px,transparent 1px,transparent 28px),#fff;font-size:16px;line-height:1.5}body::selection{color:var(--color-primary-strong);background:var(--color-accent)}a{color:inherit;text-decoration:none}button,input,select{font:inherit}main{overflow:hidden}.visually-hidden{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;clip-path:inset(50%)}[hidden]{display:none!important}.site-header,.site-footer{position:relative;isolation:isolate;color:#fff;background:linear-gradient(115deg,rgb(255 255 255 / 12%) 0 1px,transparent 1px 24px),linear-gradient(135deg,var(--color-primary-strong),var(--color-primary) 54%,#0b6a53)}.site-header:after,.site-footer:after{position:absolute;inset:0;z-index:-1;content:"";background:repeating-linear-gradient(90deg,rgb(200 255 61 / 12%) 0,rgb(200 255 61 / 12%) 1px,transparent 1px,transparent 72px),linear-gradient(90deg,transparent 0%,rgb(255 107 87 / 14%) 62%,transparent 100%);mask-image:linear-gradient(90deg,transparent,#000 18%,#000 82%,transparent)}.site-header__inner,.site-footer__inner,.site-footer__bottom,.page-section,.hero__inner{width:min(var(--max-width),calc(100% - 40px));margin:0 auto}.site-header__inner{display:grid;grid-template-columns:1fr auto 1fr;align-items:center;min-height:76px;gap:24px}.brand,.footer-brand{display:inline-flex;align-items:center;gap:10px;font-weight:800;letter-spacing:0}.brand{justify-self:start}.brand__mark,.footer-brand__mark{display:grid;width:34px;height:34px;place-items:center;border:1px solid rgb(255 255 255 / 34%);border-radius:8px;color:var(--color-primary-strong);background:var(--color-accent);box-shadow:inset 0 -8px 18px #074c3a2e}.brand__icon{width:19px;height:19px;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}.brand__name{font-size:1.08rem}.nav{display:flex;align-items:center;justify-content:center;justify-self:center;gap:6px;padding:6px;border:1px solid rgb(255 255 255 / 16%);border-radius:8px;background:#ffffff14;backdrop-filter:blur(16px)}.nav__link{min-height:40px;display:inline-flex;align-items:center;justify-content:center;border-radius:7px;font-size:.93rem;font-weight:700;white-space:nowrap}.nav__link{padding:0 14px;color:#ffffffd1}.nav__link:hover,.nav__link:focus-visible,.nav__link[aria-current=page]{color:#fff;background:#ffffff1f}.hero{background:linear-gradient(180deg,#f5faf7f0,#fff),linear-gradient(115deg,transparent 0 42%,rgb(200 255 61 / 18%) 42% 50%,transparent 50% 100%)}.hero__inner{display:flex;justify-content:center;padding:62px 0 60px}.hero__inner--centered{align-items:center}.calculator-shell{width:min(100%,540px);border:1px solid rgb(7 76 58 / 12%);border-radius:8px;padding:10px;background:linear-gradient(120deg,#ffffffe0,#f5faf7d1),repeating-linear-gradient(135deg,rgb(14 165 163 / 10%) 0,rgb(14 165 163 / 10%) 1px,transparent 1px,transparent 22px);box-shadow:var(--shadow-soft)}.calculator-shell__header{position:relative;display:flex;align-items:center;justify-content:flex-start;min-height:88px;border-radius:8px 8px 0 0;padding:20px 96px 20px 24px;color:#fff;background:linear-gradient(120deg,#033326f5,#074c3aeb),repeating-linear-gradient(90deg,rgb(255 255 255 / 14%) 0,rgb(255 255 255 / 14%) 1px,transparent 1px,transparent 36px)}h1,h2,h3,p{margin-top:0}.calculator-shell h1{margin:0;font-size:clamp(1.65rem,4vw,2.15rem);line-height:1.05;letter-spacing:0;text-align:left}.calculator-shell__badge{position:absolute;top:50%;right:18px;transform:translateY(-50%);border:1px solid rgb(255 255 255 / 20%);border-radius:999px;padding:6px 10px;color:var(--color-accent);font-size:.82rem;font-weight:900;white-space:nowrap}.calculator-body{border:1px solid var(--color-line);border-top:0;border-radius:0 0 8px 8px;background:#fff}.calculator-display{display:grid;gap:8px;min-width:0;border-right:1px solid var(--color-line);border-left:1px solid var(--color-line);padding:18px;background:#fff}.calculator-expression{min-width:0;min-height:22px;overflow:hidden;color:var(--color-muted);font-size:.9rem;font-weight:800;text-align:right;text-overflow:ellipsis;white-space:nowrap}.calculator-result{display:flex;align-items:center;justify-content:flex-end;width:100%;min-width:0;min-height:78px;overflow:hidden;border:1px solid var(--color-line);border-radius:8px;padding:10px 14px;color:var(--color-ink);background:var(--color-surface-soft);font-variant-numeric:tabular-nums;font-size:var(--calculator-result-size, clamp(2.35rem, 7vw, 3.4rem));font-weight:900;line-height:1.25;text-align:right;white-space:nowrap}.calculator-result__value{flex:0 0 auto;line-height:inherit}.calculator-keys{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:10px;border:1px solid var(--color-line);border-top:0;border-radius:0 0 8px 8px;padding:18px;background:#fff}.calculator-key{min-height:58px;border:1px solid var(--color-line);border-radius:8px;color:var(--color-ink);background:var(--color-surface-soft);font-size:1.18rem;font-weight:900;cursor:pointer;transition:transform .14s ease,background .14s ease,border-color .14s ease}.calculator-key:hover,.calculator-key:focus-visible{border-color:var(--color-teal);background:#fff}.calculator-key:active{transform:translateY(1px)}.calculator-key--utility{background:#fff7ec}.calculator-key--operator{background:var(--color-sky)}.calculator-key--equals{color:#fff;background:var(--color-primary)}.calculator-key--wide{grid-column:span 1}.page-section{padding:64px 0}.directory-hero{background:linear-gradient(180deg,#f5faf7f0,#fff),linear-gradient(115deg,transparent 0 44%,rgb(200 255 61 / 16%) 44% 52%,transparent 52% 100%)}.directory-hero__inner{text-align:center}.directory-hero h1{max-width:860px;margin:0 auto 18px;font-size:clamp(3rem,6vw,5.8rem);line-height:.95;letter-spacing:0}.directory-hero p{max-width:72ch;margin-right:auto;margin-bottom:0;margin-left:auto;color:var(--color-muted);font-size:1.14rem}.directory-count{display:inline-flex;align-items:center;justify-content:center;min-height:34px;margin-top:22px;border:1px solid var(--color-line);border-radius:999px;padding:0 14px;color:var(--color-primary);background:#fff;font-size:.88rem;font-weight:900}.directory-search-section{width:min(var(--max-width),calc(100% - 40px));margin:-20px auto 0}.directory-search{max-width:640px;margin:0 auto}.directory-search__field{position:relative;display:flex;align-items:center}.directory-search__icon{position:absolute;left:17px;width:20px;height:20px;pointer-events:none;stroke:var(--color-teal);stroke-width:2;stroke-linecap:round;stroke-linejoin:round}.directory-search input{width:100%;min-height:54px;border:1px solid var(--color-line);border-radius:8px;padding:0 18px 0 50px;color:var(--color-ink);background:#fff;box-shadow:0 16px 42px #0a372814;font-size:1rem;font-weight:700;outline:none;transition:border-color .14s ease,box-shadow .14s ease}.directory-search input::placeholder{color:#5f706ab3}.directory-search input:focus{border-color:var(--color-teal);box-shadow:0 16px 42px #0a37281a,0 0 0 4px #0ea5a31f}.directory-section{display:grid;gap:54px}.tool-section{display:grid;gap:18px}.tool-section[hidden],.tool-card[hidden],.directory-empty[hidden]{display:none}.tool-section__header{display:flex;align-items:end;justify-content:space-between;gap:20px;border-bottom:1px solid var(--color-line);padding-bottom:14px}.tool-section__header h2{margin:0;font-size:clamp(1.6rem,2vw,2.1rem);line-height:1.05}.tool-section__header span{color:var(--color-muted);font-size:.9rem;font-weight:800;white-space:nowrap}.tool-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}.tool-card{display:grid;gap:10px;min-height:154px;border:1px solid var(--color-line);border-radius:8px;padding:18px;background:#fff;box-shadow:0 14px 34px #0a37280f;transition:transform .14s ease,border-color .14s ease,box-shadow .14s ease}.tool-card:hover,.tool-card:focus-visible{transform:translateY(-2px);border-color:var(--color-teal);box-shadow:0 18px 44px #0a37281a}.tool-card__category{color:var(--color-teal);font-size:.72rem;font-weight:900;letter-spacing:.08em;text-transform:uppercase}.tool-card strong{font-size:1.08rem;line-height:1.15}.tool-card span:last-child{color:var(--color-muted);font-size:.94rem}.directory-empty{margin:0;border:1px solid var(--color-line);border-radius:8px;padding:28px;color:var(--color-muted);background:#fff;text-align:center}.directory-back,.text-link{display:inline-flex;align-items:center;justify-content:center;min-height:36px;border-radius:7px;color:var(--color-primary);font-size:.92rem;font-weight:900}.directory-back{margin-bottom:22px;padding:0 13px;background:#c8ff3d47}.text-link{color:var(--color-teal)}.detail-section{display:flex;justify-content:center}.detail-panel{max-width:760px;text-align:center}.detail-panel h2{margin-bottom:16px;font-size:clamp(2rem,4vw,3.4rem);line-height:1}.detail-panel p{margin-bottom:20px;color:var(--color-muted);font-size:1.08rem}.article-section{display:flex;justify-content:center;text-align:center}.calculator-article{max-width:820px;margin:0 auto}.article-kicker{display:inline-flex;align-items:center;gap:10px;margin-bottom:14px;color:var(--color-teal);font-size:.78rem;font-weight:900;letter-spacing:.08em;text-transform:uppercase}.article-kicker:before{width:30px;height:2px;content:"";background:var(--color-coral)}.calculator-article h2{max-width:760px;margin-right:auto;margin-bottom:22px;margin-left:auto;font-size:clamp(2.35rem,5vw,4.6rem);line-height:.98;letter-spacing:0}.calculator-article h3{margin:44px 0 12px;font-size:clamp(1.35rem,2vw,1.75rem);line-height:1.15;letter-spacing:0}.calculator-article p{max-width:72ch;margin-right:auto;margin-bottom:18px;margin-left:auto;color:var(--color-muted);font-size:1.08rem}.calculator-article .article-lead{color:var(--color-ink);font-size:clamp(1.16rem,2vw,1.36rem);line-height:1.55}.site-footer{margin-top:36px}.site-footer__inner{display:grid;grid-template-columns:minmax(240px,.85fr) minmax(0,1.4fr);gap:56px;padding:58px 0 42px}.site-footer__intro p{max-width:290px;margin:16px 0 0;color:#ffffffb8}.site-footer__links{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:28px}.footer-group h2{margin:0 0 12px;color:var(--color-accent);font-size:.82rem;letter-spacing:.08em;text-transform:uppercase}.footer-group ul{display:grid;gap:8px;margin:0;padding:0;list-style:none}.footer-group a,.site-footer__bottom a{color:#ffffffbd}.footer-group a:hover,.site-footer__bottom a:hover{color:#fff}.site-footer__bottom{display:flex;align-items:center;justify-content:space-between;gap:18px;padding:18px 0 24px;border-top:1px solid rgb(255 255 255 / 14%);color:#ffffffa3}.site-footer__bottom p{margin:0}@media(max-width:940px){.site-header__inner{display:flex;flex-wrap:wrap;padding:16px 0}.nav{order:3;width:100%;justify-content:start;overflow-x:auto}.hero__inner{padding-top:48px}.site-footer__inner{grid-template-columns:1fr}.tool-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}@media(max-width:680px){.site-header__inner,.site-footer__inner,.site-footer__bottom,.page-section,.hero__inner{width:min(var(--max-width),calc(100% - 28px))}.nav{flex-wrap:wrap;gap:2px;justify-content:stretch;overflow-x:visible}.nav__link{flex:1 1 calc(50% - 4px);padding:0 8px;font-size:.84rem}.site-footer__links{grid-template-columns:1fr}.calculator-shell__header{display:grid;gap:10px;min-height:auto;padding:18px}.calculator-shell__badge{position:static;justify-self:center;transform:none}.calculator-key{min-height:54px}.directory-hero h1{font-size:clamp(2.5rem,13vw,4rem)}.tool-section__header{align-items:start;flex-direction:column;gap:6px}.tool-grid{grid-template-columns:1fr}.site-footer__bottom{align-items:start;flex-direction:column}}