:root{--navy:#0b2a55;--blue:#165dcc;--blue-dark:#104ba4;--ink:#142033;--muted:#5d6b7e;--line:#dbe3ee;--soft:#f3f7fc;--white:#fff;--danger:#b42318;--shadow:0 18px 50px rgba(11,42,85,.12);font-family:Inter,ui-sans-serif,-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Arial,sans-serif;color:var(--ink);background:var(--white);font-synthesis:none}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:88px}
body{margin:0;line-height:1.65}
button,input,select{font:inherit}
button,a{-webkit-tap-highlight-color:transparent}
button{cursor:pointer}
a{color:var(--blue)}
.shell{width:min(1120px,calc(100% - 40px));margin-inline:auto}
.skip-link{position:fixed;left:16px;top:-60px;z-index:20;background:var(--navy);color:#fff;padding:10px 14px;border-radius:6px}.skip-link:focus{top:12px}
.site-header{height:72px;border-bottom:1px solid rgba(219,227,238,.8);background:rgba(255,255,255,.96);position:sticky;top:0;z-index:10}
.nav{height:100%;display:flex;align-items:center;justify-content:space-between}
.brand{display:flex;align-items:center;gap:9px;color:var(--navy);font-weight:750;text-decoration:none;letter-spacing:-.02em}.brand svg{width:28px;fill:var(--blue)}
.nav-links{display:flex;align-items:center;gap:26px}.nav-links>a,.tools-menu>summary{color:#344054;text-decoration:none;font-size:.94rem;font-weight:600}.nav-links a:hover,.tools-menu>summary:hover{color:var(--blue)}
.tools-menu{position:relative;border:0;padding:0}.tools-menu>summary{padding:12px 18px 12px 0}.tools-menu>summary:after{content:"";position:static;display:inline-block;width:7px;height:7px;margin:0 0 3px 7px;border-right:2px solid currentColor;border-bottom:2px solid currentColor;transform:rotate(45deg)}.tools-menu[open]>summary:after{transform:rotate(225deg);margin-bottom:-1px}.tools-menu-panel{position:absolute;right:0;top:44px;width:310px;display:grid;grid-template-columns:1fr 1fr;gap:4px;padding:10px;background:#fff;border:1px solid var(--line);border-radius:12px;box-shadow:var(--shadow)}.tools-menu-panel a{padding:10px 12px;border-radius:8px;color:#344054;text-decoration:none;font-size:.86rem;font-weight:650}.tools-menu-panel a:hover{background:var(--soft);color:var(--blue)}
.hero{text-align:center;padding:76px 20px 144px}.eyebrow,.section-label{text-transform:uppercase;letter-spacing:.13em;font-size:.75rem;font-weight:800;color:var(--blue);margin:0 0 10px}
h1,h2,h3{color:var(--navy);line-height:1.15;letter-spacing:-.035em}
h1{font-size:clamp(2.35rem,6vw,4.15rem);margin:0 auto 18px;max-width:900px}
.hero>p:last-child{font-size:clamp(1.03rem,2vw,1.22rem);color:var(--muted);max-width:710px;margin:0 auto}
.page-hero{padding:58px 0 42px}.breadcrumbs{font-size:.83rem;color:var(--muted);margin-bottom:24px}.breadcrumbs a{text-decoration:none}.page-hero h1{font-size:clamp(2.2rem,5vw,3.65rem);margin-left:0;max-width:920px}.page-hero>p:last-child{max-width:820px;color:var(--muted);font-size:1.08rem}.lead-copy{max-width:900px;margin:0 auto 38px}.lead-copy p{font-size:1.04rem;color:#435167}.page-converter{margin-top:0}
.converter-wrap{margin-top:-88px}
.converter-card{background:#fff;border:1px solid var(--line);border-radius:18px;box-shadow:var(--shadow);padding:34px}
.card-heading,.result-heading{display:flex;justify-content:space-between;align-items:flex-start;gap:20px}.card-heading h2{font-size:1.55rem;margin:0 0 5px}.card-heading p{margin:0;color:var(--muted);font-size:.92rem}
.privacy-note{display:flex;align-items:center;gap:7px;color:#24724b;background:#eef9f3;border-radius:999px;padding:6px 11px;font-size:.78rem;font-weight:700}.privacy-note svg{width:16px;fill:currentColor}
form{margin-top:26px}form>label{font-weight:750;display:block;margin-bottom:8px}
.amount-row{display:grid;grid-template-columns:220px 1fr}.amount-row select,.amount-row input{border:1px solid #aebaca;padding:14px 15px;color:var(--ink);background:#fff;outline:none}.amount-row select{border-radius:9px 0 0 9px;border-right:0}.amount-row input{border-radius:0 9px 9px 0;font-size:1.12rem;font-weight:650;font-variant-numeric:tabular-nums}.amount-row :focus{position:relative;border-color:var(--blue);box-shadow:0 0 0 3px rgba(22,93,204,.14)}
.error{min-height:24px;margin:5px 0;color:var(--danger);font-size:.86rem}
.settings-grid{display:grid;grid-template-columns:1fr 1fr;gap:26px;margin:18px 0 26px}fieldset{border:1px solid var(--line);border-radius:10px;padding:16px 18px 18px}legend{padding:0 6px;font-weight:750;color:var(--navy)}fieldset label{display:inline-flex;align-items:center;gap:6px;margin:5px 18px 0 0;cursor:pointer}input[type=radio]{accent-color:var(--blue);width:17px;height:17px}.only-option{display:flex;font-size:.78rem;color:var(--muted);margin-top:11px!important}.only-option[hidden]{display:none!important}.only-option input{accent-color:var(--blue);width:14px;height:14px}
.convert-button{width:100%;border:0;border-radius:9px;padding:14px;background:var(--blue);color:#fff;font-weight:750}.convert-button:hover{background:var(--blue-dark)}.convert-button:focus-visible,.result-actions button:focus-visible{outline:3px solid rgba(22,93,204,.25);outline-offset:2px}
.result-block{margin-top:26px;background:var(--soft);border:1px solid #d5e1f0;border-radius:12px;padding:22px}.result-heading{color:var(--muted);font-size:.78rem;font-weight:750;text-transform:uppercase;letter-spacing:.08em}#status{color:#24724b;text-transform:none;letter-spacing:0}
output{display:block;font-family:Georgia,"Times New Roman",serif;color:var(--navy);font-size:clamp(1.18rem,2.5vw,1.52rem);font-weight:700;line-height:1.5;margin:12px 0 20px}
.result-actions{display:flex;gap:10px}.result-actions button{display:flex;align-items:center;gap:7px;border:1px solid #b7c5d7;border-radius:7px;background:#fff;color:var(--navy);padding:8px 12px;font-weight:700}.result-actions svg{width:17px;fill:currentColor}
.content{max-width:900px;padding-top:100px}.content section{margin-bottom:92px}.content h2{font-size:clamp(1.85rem,4vw,2.55rem);margin:0 0 20px}.content h3{margin:7px 0;font-size:1.05rem}.content p{color:#435167}.content section>p{font-size:1.03rem}
.page-content{padding-top:72px}.page-content section{margin-bottom:70px}.page-content h3{font-size:1.28rem;margin-top:30px}.page-content ul,.page-content ol{color:#435167;padding-left:24px}.page-content li{margin-bottom:10px}
.tools-directory{padding:86px 0 0}.tools-directory-header{max-width:720px;margin-bottom:30px}.tools-directory h2{font-size:clamp(1.85rem,4vw,2.55rem);margin:0 0 12px}.tools-directory-header p{color:var(--muted);margin:0}.tool-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}.tool-card{display:block;border:1px solid var(--line);border-radius:14px;padding:23px;text-decoration:none;background:#fff;transition:border-color .15s ease,box-shadow .15s ease}.tool-card:hover{border-color:#9bb9e4;box-shadow:0 12px 30px rgba(11,42,85,.08)}.tool-card h3{margin:0 0 7px;font-size:1.12rem;color:var(--navy);letter-spacing:-.02em}.tool-card p{margin:0;color:var(--muted);font-size:.91rem}.tool-card span{display:inline-block;margin-top:12px;font-size:.87rem;font-weight:750;color:var(--blue)}
.guide-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px;margin-top:24px}.guide-card{border:1px solid var(--line);border-radius:12px;padding:20px}.guide-card h3{margin-top:0}.guide-card p{margin-bottom:0;font-size:.94rem}.cta-panel{background:var(--navy);color:#fff;border-radius:16px;padding:30px;margin:36px 0}.cta-panel h2,.cta-panel h3{color:#fff;margin-top:0}.cta-panel p{color:#c8d7e8}.cta-link{display:inline-flex;padding:11px 17px;background:#fff;color:var(--navy);border-radius:8px;text-decoration:none;font-weight:750}
.inline-control{display:flex;align-items:center;gap:8px;margin:12px 0 0;color:var(--muted);font-size:.86rem}.inline-control input{width:16px;height:16px;accent-color:var(--blue)}
.number-row{display:grid;grid-template-columns:1fr}.number-row input{width:100%;border:1px solid #aebaca;border-radius:9px;padding:14px 15px;color:var(--ink);background:#fff;outline:none;font-size:1.12rem;font-weight:650;font-variant-numeric:tabular-nums}.number-row input:focus{border-color:var(--blue);box-shadow:0 0 0 3px rgba(22,93,204,.14)}
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:30px}.steps>div{border:1px solid var(--line);border-radius:12px;padding:20px}.steps span{display:grid;place-items:center;width:28px;height:28px;border-radius:7px;background:#e9f1ff;color:var(--blue);font-weight:800}.steps p{font-size:.9rem;margin:0}
.tip{display:flex;gap:14px;background:#f6f9fd;border-left:4px solid var(--blue);padding:20px 22px;margin-top:28px}.tip svg{flex:0 0 25px;fill:var(--blue)}.tip strong{color:var(--navy)}.tip p{margin:3px 0 0;font-size:.92rem}
.table-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:12px;margin-top:24px}table{border-collapse:collapse;width:100%;font-size:.93rem}th,td{text-align:left;padding:13px 16px;border-bottom:1px solid var(--line)}th{background:var(--soft);color:var(--navy);font-size:.78rem;text-transform:uppercase;letter-spacing:.06em}tbody tr:last-child td{border-bottom:0}tbody tr{cursor:pointer}tbody tr:hover{background:#f8fbff}td:first-child{font-variant-numeric:tabular-nums;font-weight:700;white-space:nowrap}
.faq-list{border-top:1px solid var(--line)}details{border-bottom:1px solid var(--line);padding:0}summary{list-style:none;cursor:pointer;color:var(--navy);font-weight:750;padding:20px 38px 20px 0;position:relative}summary::-webkit-details-marker{display:none}summary:after{content:"+";position:absolute;right:7px;font-size:1.35rem;font-weight:400}details[open] summary:after{content:"−"}details p{margin:-6px 40px 20px 0}
footer{background:var(--navy);color:#fff;padding:44px 0}.footer-inner{display:grid;grid-template-columns:1fr auto auto;gap:50px;align-items:center}.footer-inner strong{font-size:1.12rem}.footer-inner p{color:#b8c8db;margin:4px 0 0;font-size:.87rem}.footer-inner nav{display:flex;gap:20px;flex-wrap:wrap}.footer-inner a{color:#dce8f5;text-decoration:none;font-size:.9rem}
@media(max-width:860px){.site-header{height:auto}.nav{min-height:64px;align-items:center;padding-block:12px;gap:18px}.nav-links{gap:13px}.nav-links>a{display:none}.tools-menu-panel{right:0}.hero{padding:58px 10px 130px}.converter-card{padding:22px}.card-heading{display:block}.privacy-note{width:max-content;margin-top:14px}.amount-row{grid-template-columns:1fr}.amount-row select{border-radius:9px 9px 0 0;border-right:1px solid #aebaca;border-bottom:0}.amount-row input{border-radius:0 0 9px 9px}.settings-grid{grid-template-columns:1fr;gap:14px}.steps,.guide-grid{grid-template-columns:1fr}.tool-grid{grid-template-columns:1fr}.content{padding-top:74px}.content section{margin-bottom:70px}.footer-inner{grid-template-columns:1fr;gap:24px}.footer-inner nav{flex-wrap:wrap}}
@media(max-width:420px){.shell{width:min(100% - 24px,1120px)}.converter-card{padding:17px}.result-block{padding:17px}.settings-grid fieldset label{display:flex;margin-right:0}.result-actions{flex-direction:column}.result-actions button{justify-content:center}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}