:root{--navy:#0b1f3a;--blue:#0b5cad;--saffron:#ff9933;--green:#138808;--ink:#172033;--muted:#64748b;--bg:#f6f8fb;--card:#fff;--line:#e4e9ef;--shadow:0 20px 60px rgba(11,31,58,.08)}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:Inter,system-ui,-apple-system,"Segoe UI",sans-serif;color:var(--ink);background:var(--bg);line-height:1.65}a{text-decoration:none;color:inherit}.wrap{width:min(1180px,calc(100% - 32px));margin:auto}.flag{height:4px;display:grid;grid-template-columns:1fr 1fr 1fr}.flag i{background:var(--saffron)}.flag b{background:#fff}.flag em{background:var(--green)}
header{position:sticky;top:0;z-index:100;background:#ffffffee;backdrop-filter:blur(16px);border-bottom:1px solid var(--line)}.nav{height:74px;display:flex;align-items:center;justify-content:space-between}.logo{font-size:21px;font-weight:900;display:flex;align-items:center;gap:9px}.mark{width:39px;height:39px;border-radius:11px;background:var(--navy);color:#fff;display:grid;place-items:center;font-size:11px;box-shadow:inset 0 -3px var(--green)}.logo strong{color:var(--saffron)}nav{display:flex;gap:24px;font-size:14px;font-weight:800;color:#506078}nav a:hover{color:var(--blue)}
.hero{padding:76px 0;background:radial-gradient(circle at 82% 20%,#ff993326,transparent 27%),radial-gradient(circle at 75% 80%,#13880818,transparent 28%),#fff}.hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:55px;align-items:center}.eyebrow,.label{font-size:10px;letter-spacing:.14em;font-weight:900;color:#66758a}.hero h1{font-size:clamp(42px,6vw,70px);line-height:1.02;letter-spacing:-.055em;margin:18px 0}.hero h1 em{font-style:normal;color:var(--saffron)}.hero p{font-size:18px;color:var(--muted);max-width:690px}.search{display:flex;align-items:center;gap:10px;background:#fff;border:1px solid var(--line);padding:8px 12px;border-radius:15px;box-shadow:var(--shadow);margin:25px 0;max-width:680px}.search input{border:0;outline:0;width:100%;font-size:16px}.hero-card{background:#fff;border:1px solid var(--line);border-radius:25px;padding:28px;box-shadow:0 28px 80px #0b1f3a16}.hero-card .result{display:flex;justify-content:space-between;align-items:center;font-size:23px;margin:22px 0}.hero-card .result b:last-child{color:var(--saffron)}.formula{background:#f7f9fc;border:1px solid var(--line);padding:13px;border-radius:11px;font-size:12px;color:#526176}.btn{display:inline-flex;align-items:center;justify-content:center;padding:12px 17px;border-radius:11px;font-weight:850;border:1px solid transparent;cursor:pointer}.btn-primary{background:var(--navy);color:#fff}.btn-secondary{background:#fff;border-color:var(--line)}.stats{background:var(--navy);color:#fff}.stats .wrap{display:grid;grid-template-columns:repeat(4,1fr)}.stat{text-align:center;padding:23px;border-right:1px solid #ffffff12}.stat:last-child{border:0}.stat b{display:block;font-size:24px}.stat span{font-size:10px;color:#b7c2d2;text-transform:uppercase;letter-spacing:.1em}.section{padding:72px 0}.section.alt{background:#fff}.section h2{font-size:clamp(30px,4vw,46px);letter-spacing:-.045em;line-height:1.1;margin:8px 0 15px}.section p{color:var(--muted)}.filters{display:grid;grid-template-columns:1fr 220px;gap:10px;margin:25px 0}.filters input,.filters select{padding:13px;border:1px solid var(--line);border-radius:11px;background:#fff;outline:0}.tool-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:13px}.tool-card{background:#fff;border:1px solid var(--line);border-radius:15px;padding:17px;min-height:140px;display:flex;flex-direction:column;transition:.18s}.tool-card:hover{transform:translateY(-3px);box-shadow:var(--shadow)}.tool-card small{color:var(--green);font-weight:900;font-size:9px;text-transform:uppercase;letter-spacing:.1em}.tool-card h3{font-size:15px;line-height:1.35;margin:9px 0}.tool-card span{margin-top:auto;color:var(--blue);font-size:12px;font-weight:850}.category-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin-top:25px}.category-card{background:#f8fafc;border:1px solid var(--line);border-radius:16px;padding:20px}.category-card b{display:block}.category-card span{font-size:12px;color:var(--muted)}
.breadcrumbs{font-size:12px;color:var(--muted);display:flex;gap:8px;margin-bottom:22px}.breadcrumbs a:hover{color:var(--blue)}.tool-layout{display:grid;grid-template-columns:1fr 310px;gap:20px}.card{background:#fff;border:1px solid var(--line);border-radius:22px;padding:28px;box-shadow:0 8px 30px #0b1f3a08}.tool-card-main h1{font-size:clamp(32px,5vw,50px);letter-spacing:-.05em;line-height:1.05;margin:12px 0}.badge{display:inline-block;background:#edf7ef;color:var(--green);padding:6px 9px;border-radius:999px;font-size:10px;font-weight:900;text-transform:uppercase}.calculator{background:#f7f9fc;border:1px solid var(--line);border-radius:17px;padding:20px;margin-top:24px}.input-line{display:flex;gap:10px;align-items:end}.input-line label{flex:1;font-size:10px;font-weight:900;text-transform:uppercase;color:#6b788b}.input-line .field{display:flex;background:#fff;border:1px solid #dce3ec;border-radius:12px;overflow:hidden;margin-top:6px}.field input{width:100%;min-width:0;border:0;outline:0;padding:14px;font-size:24px;font-weight:800}.field span{padding:14px;color:var(--blue);font-weight:900}.swap{display:block;width:43px;height:43px;border-radius:50%;border:1px solid var(--line);background:#fff;margin:14px auto;color:var(--blue);font-size:20px;cursor:pointer}.answer{display:flex;justify-content:space-between;align-items:center;background:var(--navy);color:#fff;border-radius:13px;padding:18px}.answer small{color:#b7c4d6;font-size:10px}.answer strong{font-size:28px}.controls{display:flex;gap:7px;align-items:center;justify-content:flex-end;margin-top:10px;font-size:11px;color:var(--muted)}.controls select,.controls button{padding:7px 9px;border:1px solid var(--line);background:#fff;border-radius:8px;cursor:pointer}.formula-box{margin-top:18px;padding:15px;border-left:4px solid var(--saffron);background:#fff8f1;border-radius:9px}.formula-box b{font-size:10px;color:#9b5b0d;letter-spacing:.1em}.formula-box p{margin:5px 0;color:#5b4b39;font-weight:700}.side h3{font-size:15px}.side a{display:block;padding:10px 0;border-bottom:1px solid var(--line);font-size:13px;color:#2d527a;font-weight:750}.content-two{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin-top:20px}.content-card h2{font-size:25px;margin-top:0}.content-card li{margin:8px 0}.table-wrap{overflow:auto}.conv-table{width:100%;border-collapse:collapse;margin-top:15px}.conv-table th,.conv-table td{padding:10px;border-bottom:1px solid var(--line);text-align:right}.conv-table th:first-child,.conv-table td:first-child{text-align:left}.conv-table th{background:#f7f9fc;font-size:12px}.faq-item{border-bottom:1px solid var(--line);padding:14px 0}.faq-item button{width:100%;text-align:left;border:0;background:transparent;font-weight:850;cursor:pointer;padding:0}.faq-answer{display:none;color:var(--muted);padding-top:7px}.faq-answer.open{display:block}.notice{padding:14px;border-left:4px solid var(--saffron);background:#fff8f1;border-radius:9px}.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:15px}.step{background:#fff;border:1px solid var(--line);padding:23px;border-radius:17px}.step b{color:var(--saffron)}.narrow{max-width:850px}details{border-bottom:1px solid var(--line);padding:16px 0}summary{font-weight:850;cursor:pointer}footer{background:#07182e;color:#d7e0eb;padding:48px 0 18px}.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:35px}.footer-grid p{color:#9dacbf;max-width:340px}.footer-grid h4{color:#fff;margin-top:0}.footer-grid a:not(.logo){display:block;color:#aab8c9;font-size:13px;margin:8px 0}.footer-bottom{border-top:1px solid #ffffff12;margin-top:35px;padding-top:15px;font-size:11px;color:#8797aa;display:flex;justify-content:space-between}
@media(max-width:950px){nav{display:none}.hero-grid{grid-template-columns:1fr}.tool-grid{grid-template-columns:repeat(3,1fr)}.category-grid{grid-template-columns:repeat(3,1fr)}.tool-layout{grid-template-columns:1fr}.footer-grid{grid-template-columns:2fr 1fr 1fr}}
@media(max-width:650px){.wrap{width:calc(100% - 26px)}.hero{padding:55px 0}.stats .wrap{grid-template-columns:1fr 1fr}.stat:nth-child(2){border-right:0}.tool-grid,.category-grid,.content-two,.steps{grid-template-columns:1fr 1fr}.filters{grid-template-columns:1fr}.input-line{display:block}.controls{flex-wrap:wrap}.footer-grid{grid-template-columns:1fr 1fr}.footer-grid>div:first-child{grid-column:1/-1}.footer-bottom{display:block}.footer-bottom span{display:block;margin:5px 0}}
@media(max-width:430px){.tool-grid,.category-grid,.content-two,.steps{grid-template-columns:1fr}.hero h1{font-size:44px}}

:focus-visible{outline:3px solid #ff9933;outline-offset:3px}
.skip-link{position:absolute;left:-9999px;top:auto}.skip-link:focus{left:12px;top:12px;z-index:999;background:#fff;color:#0b1f3a;padding:10px 14px;border-radius:8px}
.ad-slot{min-height:110px;border:1px dashed #d7dee8;background:#fbfcfe;border-radius:14px;display:flex;align-items:center;justify-content:center;color:#8793a4;font-size:10px;letter-spacing:.08em;margin:22px 0}
.accuracy-note{font-size:12px!important;background:#f6f8fb;padding:12px;border-radius:10px}.last-updated{font-size:11px!important;color:#7a8798!important}
@media print{header,footer,.side,.controls,.swap,.ad-slot,.btn{display:none!important}.section{padding:0}.card{box-shadow:none;border:0}body{background:#fff}}

.answer strong{display:block;min-width:120px;text-align:right;color:#fff!important;line-height:1.2}.answer{min-height:88px}