:root{--ink:#102a43;--muted:#60758a;--accent:#ff6259;--accent-dark:#e84a42;--paper:#fff;--canvas:#f5f8fb;--line:#dfe8ef;--mint:#dcf5ed;--blue:#e3f0ff;--peach:#fff0e8;--yellow:#fff7d6;--purple:#eee9ff;--radius:22px;--shadow:0 18px 50px rgba(16,42,67,.09);--max:1180px}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--paper);color:var(--ink);font-family:Inter,Manrope,"Segoe UI",system-ui,sans-serif;font-size:16px;line-height:1.65;-webkit-font-smoothing:antialiased}body.no-scroll{overflow:hidden}a{color:inherit;text-decoration:none}button,input,select,textarea{font:inherit}button{cursor:pointer}img,svg{max-width:100%}.container{width:min(calc(100% - 32px),var(--max));margin-inline:auto}.narrow{max-width:780px}.section{padding:72px 0}.section-soft{background:var(--canvas)}.section-header{display:flex;align-items:end;justify-content:space-between;gap:24px;margin-bottom:28px}.section-header h2,.content h2{margin:0;color:var(--ink);font-size:clamp(1.6rem,4vw,2.35rem);line-height:1.15;letter-spacing:-.04em}.section-header p{margin:8px 0 0;color:var(--muted)}.eyebrow{display:inline-flex;align-items:center;gap:8px;margin-bottom:14px;color:#d9463d;font-size:.82rem;font-weight:800;letter-spacing:.12em;text-transform:uppercase}.eyebrow:before{content:"";width:24px;height:2px;background:var(--accent)}.icon{width:24px;height:24px;display:block}.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}.skip-link{position:fixed;z-index:999;left:16px;top:-60px;background:var(--ink);color:#fff;padding:10px 16px;border-radius:10px}.skip-link:focus{top:16px}
.site-header{height:78px;position:sticky;top:0;z-index:60;background:rgba(255,255,255,.92);backdrop-filter:blur(16px);border-bottom:1px solid transparent;transition:.2s}.site-header.is-scrolled{height:66px;border-color:var(--line);box-shadow:0 4px 18px rgba(16,42,67,.05)}.header-inner{height:100%;display:flex;align-items:center;justify-content:space-between}.brand{display:inline-flex;align-items:center;gap:10px;font-size:1.18rem;font-weight:850;letter-spacing:-.04em}.brand-mark{width:34px;height:34px;border-radius:11px;background:var(--ink);color:var(--accent);display:grid;place-items:center;font-size:1.6rem;font-weight:900;line-height:1}.main-nav{display:flex;align-items:center;gap:28px;font-weight:650;font-size:.95rem}.main-nav a{padding:8px 0;position:relative}.main-nav a:after{content:"";position:absolute;left:0;right:100%;bottom:2px;height:2px;background:var(--accent);transition:.2s}.main-nav a:hover:after,.main-nav a:focus-visible:after{right:0}.nav-search{width:42px;height:42px;border:0;border-radius:13px;background:var(--canvas);display:grid;place-items:center;color:var(--ink)}.nav-search:hover{background:var(--blue)}.menu-button{display:none;border:0;background:transparent;padding:8px}.menu-button span:not(.sr-only){display:block;width:24px;height:2px;background:var(--ink);margin:5px;border-radius:2px}
.hero{position:relative;overflow:hidden;padding:78px 0 82px;background:linear-gradient(145deg,#f7fbff 0%,#fff 55%,#fff5f0 100%)}.hero:after{content:"";position:absolute;width:360px;height:360px;border-radius:50%;right:-140px;top:-140px;background:radial-gradient(circle,#ffd9d3,rgba(255,217,211,0) 68%);pointer-events:none}.hero-inner{position:relative;z-index:1;max-width:880px}.hero h1{font-size:clamp(3rem,8vw,6.4rem);line-height:.95;letter-spacing:-.075em;margin:0;max-width:950px}.hero h1 span{color:var(--accent)}.hero-lead{font-size:clamp(1.08rem,2vw,1.3rem);color:var(--muted);max-width:670px;margin:26px 0 34px}.hero-search{max-width:700px}.search-box{position:relative;display:flex;align-items:center;background:#fff;border:1px solid var(--line);border-radius:18px;box-shadow:var(--shadow);padding:0 18px}.search-box:focus-within{border-color:#7297b7;box-shadow:0 0 0 4px rgba(63,124,177,.12),var(--shadow)}.search-box>span{font-size:1.6rem;color:var(--muted);margin-right:10px}.search-box input{width:100%;border:0;outline:0;background:transparent;padding:19px 4px;font-size:1.05rem;color:var(--ink)}.hero-search .search-results:not(:empty){background:#fff;margin-top:10px;border:1px solid var(--line);border-radius:18px;box-shadow:var(--shadow);padding:8px;position:absolute;width:min(calc(100% - 32px),700px);z-index:5}.search-result{display:flex;gap:14px;align-items:center;padding:12px;border-radius:12px}.search-result:hover,.search-result:focus{background:var(--canvas)}.search-result .result-icon{width:40px;height:40px;display:grid;place-items:center;background:var(--blue);border-radius:12px}.search-result strong{display:block}.search-result small{color:var(--muted)}
.tool-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}.tool-card{min-height:190px;border:1px solid var(--line);border-radius:var(--radius);padding:24px;background:#fff;display:flex;flex-direction:column;transition:transform .2s,box-shadow .2s,border-color .2s}.tool-card:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:transparent}.tool-icon{width:48px;height:48px;border-radius:15px;display:grid;place-items:center;background:var(--blue);color:#22577a;margin-bottom:28px}.tool-card:nth-child(4n+2) .tool-icon{background:var(--mint);color:#19735c}.tool-card:nth-child(4n+3) .tool-icon{background:var(--peach);color:#a63e2f}.tool-card:nth-child(4n) .tool-icon{background:var(--purple);color:#6549a5}.tool-card h3{font-size:1.07rem;line-height:1.25;margin:auto 0 7px;letter-spacing:-.02em}.tool-card p{color:var(--muted);font-size:.9rem;line-height:1.45;margin:0}.category-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.category-card{border-radius:var(--radius);padding:28px;min-height:210px;background:var(--blue);display:flex;flex-direction:column;position:relative;overflow:hidden;transition:transform .2s}.category-card:nth-child(2){background:var(--mint)}.category-card:nth-child(3){background:var(--peach)}.category-card:nth-child(4){background:var(--yellow)}.category-card:nth-child(5){background:var(--purple)}.category-card:nth-child(6){background:#e7f5fb}.category-card:hover{transform:translateY(-3px)}.category-symbol{font-size:2.3rem;line-height:1}.category-card h3{font-size:1.35rem;margin:auto 0 4px}.category-card p{margin:0;color:#425d72}.text-link{font-weight:750;color:#ba3e37}.text-link:hover{text-decoration:underline}.button{display:inline-flex;align-items:center;justify-content:center;border:0;border-radius:14px;background:var(--accent);color:#fff;font-weight:800;padding:14px 20px;min-height:52px;transition:.18s}.button:hover{background:var(--accent-dark);transform:translateY(-1px)}.button:focus-visible,.menu-button:focus-visible,.nav-search:focus-visible{outline:3px solid rgba(45,112,164,.32);outline-offset:2px}.button-secondary{background:var(--ink)}.button-secondary:hover{background:#1b405d}.button-ghost{background:#edf3f7;color:var(--ink)}.button-ghost:hover{background:#dfe9f0}
.page-hero{padding:56px 0 46px;background:var(--canvas)}.page-hero h1{font-size:clamp(2.4rem,6vw,4.7rem);line-height:1;letter-spacing:-.06em;margin:0}.page-hero p{font-size:1.15rem;color:var(--muted);max-width:700px;margin:18px 0 0}.breadcrumbs{display:flex;flex-wrap:wrap;gap:8px;color:var(--muted);font-size:.88rem;margin-bottom:22px}.breadcrumbs a:hover{text-decoration:underline}.breadcrumbs span:not(:last-child):after{content:"/";margin-left:8px;color:#a5b5c3}.tool-layout{display:grid;grid-template-columns:minmax(0,760px) minmax(240px,1fr);gap:38px;align-items:start;padding:44px 0 72px}.calculator-card{background:#fff;border:1px solid var(--line);border-radius:28px;box-shadow:var(--shadow);overflow:hidden}.calculator-head{padding:24px 26px 20px;background:linear-gradient(135deg,#edf6ff,#fff5f1)}.calculator-head h2{margin:0;font-size:1.35rem;letter-spacing:-.03em}.calculator-head p{margin:5px 0 0;color:var(--muted);font-size:.94rem}.calculator-body{padding:26px}.fields{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}.field{display:flex;flex-direction:column;gap:7px}.field-full{grid-column:1/-1}.field label,.field legend{font-weight:750;font-size:.92rem}.field input,.field select,.field textarea{width:100%;border:1px solid #cbd9e4;border-radius:13px;padding:14px 15px;background:#fff;color:var(--ink);min-height:52px}.field input:focus,.field select:focus,.field textarea:focus{outline:0;border-color:#558ab3;box-shadow:0 0 0 4px rgba(63,124,177,.12)}.field small{color:var(--muted)}.input-with-unit{display:flex;position:relative;align-items:center}.input-with-unit input{padding-right:55px}.input-with-unit span{position:absolute;right:15px;color:var(--muted);font-weight:700}.radio-row{display:flex;gap:10px;flex-wrap:wrap}.radio-pill{position:relative}.radio-pill input{position:absolute;opacity:0;pointer-events:none}.radio-pill span{display:block;padding:10px 14px;border:1px solid #cad8e3;border-radius:12px;font-weight:700}.radio-pill input:checked+span{background:var(--ink);border-color:var(--ink);color:#fff}.calc-actions{margin-top:22px;display:flex;gap:12px}.calc-actions .button{flex:1}.calc-error{color:#bd2c2c;background:#fff0f0;border-radius:10px;padding:10px 12px;margin:14px 0 0;display:none}.calc-error.show{display:block}.result-panel{margin-top:22px;border-radius:20px;background:var(--ink);color:#fff;padding:24px;display:none}.result-panel.show{display:block;animation:result-in .25s ease}.result-label{color:#b8cbd9;font-size:.88rem;font-weight:700}.result-main{font-size:clamp(1.9rem,6vw,3rem);line-height:1.05;letter-spacing:-.05em;font-weight:850;margin:5px 0 18px}.result-details{display:grid;grid-template-columns:repeat(2,1fr);gap:10px}.result-detail{padding:12px;background:rgba(255,255,255,.08);border-radius:12px}.result-detail span{display:block;color:#b8cbd9;font-size:.76rem}.result-detail strong{font-size:1rem}.copy-button{margin-top:14px;background:transparent;color:#fff;border:1px solid rgba(255,255,255,.25);border-radius:10px;padding:8px 12px}.copy-button:hover{background:rgba(255,255,255,.08)}.tool-aside{position:sticky;top:96px}.trust-card{border-radius:20px;background:var(--mint);padding:24px}.trust-card h2{font-size:1.15rem;margin:0 0 10px}.trust-card ul{list-style:none;padding:0;margin:0}.trust-card li{padding:7px 0}.trust-card li:before{content:"✓";font-weight:900;color:#158267;margin-right:8px}.ad-slot{display:grid;place-items:center;color:#91a0ad;font-size:.72rem;letter-spacing:.08em;text-transform:uppercase;border:1px dashed #d9e2e9;border-radius:16px;background:#fafcfd}.ad-slot-horizontal{min-height:100px;margin:36px 0}.ad-slot-rectangle{min-height:250px;margin-top:22px}.content{padding:20px 0 72px}.content h2{margin-top:54px}.content h3{font-size:1.25rem;margin-top:34px}.content p,.content li{color:#40596f}.content a{color:#b73d36;text-decoration:underline;text-underline-offset:3px}.formula-box{background:var(--blue);border-radius:18px;padding:20px 22px;margin:20px 0;font-weight:750}.example-box{background:var(--peach);border-left:4px solid var(--accent);border-radius:0 18px 18px 0;padding:18px 22px}.faq{border-top:1px solid var(--line)}.faq details{border-bottom:1px solid var(--line);padding:16px 0}.faq summary{font-weight:800;cursor:pointer;list-style:none;display:flex;justify-content:space-between;gap:20px}.faq summary:after{content:"+";font-size:1.3rem}.faq details[open] summary:after{content:"−"}.faq details p{margin:10px 0 0}.related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:22px}.related-card{border:1px solid var(--line);border-radius:16px;padding:18px;font-weight:800}.related-card:hover{border-color:var(--accent);transform:translateY(-2px)}
.search-overlay{position:fixed;inset:0;z-index:100;background:rgba(10,31,48,.62);backdrop-filter:blur(6px);padding:7vh 16px;overflow:auto}.search-overlay[hidden]{display:none}.search-panel{position:relative;max-width:720px;margin:auto;background:#fff;border-radius:26px;padding:36px;box-shadow:0 30px 100px rgba(0,0,0,.25)}.search-panel h2{font-size:2rem;letter-spacing:-.04em;margin:0 50px 24px 0}.search-close{position:absolute;right:24px;top:20px;width:44px;height:44px;border:0;border-radius:12px;background:var(--canvas);font-size:1.6rem}.search-panel .search-results{margin-top:14px}.empty-search{padding:18px;color:var(--muted)}
.site-footer{background:var(--ink);color:#fff;padding:64px 0 24px}.footer-grid{display:grid;grid-template-columns:1.5fr repeat(3,1fr);gap:50px}.footer-grid h2{font-size:.85rem;text-transform:uppercase;letter-spacing:.1em;color:#9fb6c8;margin:0 0 16px}.footer-grid a:not(.brand){display:block;color:#dce6ed;margin:8px 0;font-size:.92rem}.footer-grid a:hover{color:#fff;text-decoration:underline}.footer-grid p{color:#9fb6c8}.brand-footer .brand-mark{background:#fff}.footer-bottom{display:flex;justify-content:space-between;gap:20px;color:#91a9bb;font-size:.84rem;border-top:1px solid rgba(255,255,255,.12);margin-top:44px;padding-top:20px}.cookie-banner{position:fixed;z-index:120;left:20px;right:20px;bottom:20px;max-width:900px;margin:auto;background:#fff;border:1px solid var(--line);border-radius:20px;box-shadow:0 24px 70px rgba(16,42,67,.24);padding:20px;display:flex;justify-content:space-between;align-items:center;gap:20px}.cookie-banner[hidden]{display:none}.cookie-banner p{margin:4px 0 0;color:var(--muted);font-size:.9rem}.cookie-actions{display:flex;gap:10px;flex-shrink:0}.cookie-actions .button{min-height:44px;padding:10px 14px;font-size:.88rem}.notice{padding:16px 18px;border-radius:14px;background:var(--blue);margin:18px 0}.notice-success{background:var(--mint)}.notice-error{background:#fff0f0;color:#a62d2d}.contact-form{display:grid;gap:18px}.hp-field{position:absolute;left:-9999px}.all-tools-toolbar{margin:28px 0}.no-results{grid-column:1/-1;padding:30px;text-align:center;color:var(--muted)}
@keyframes result-in{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:none}}@media(prefers-reduced-motion:reduce){*,*:before,*:after{scroll-behavior:auto!important;animation-duration:.01ms!important;transition-duration:.01ms!important}}
.hero-search{position:relative}.hero-search .search-results:not(:empty){width:100%}