@font-face{font-family:"Inter";src:url("/fonts/inter-latin.woff2") format("woff2");font-weight:100 900;font-style:normal;font-display:swap}
:root{--brand:#0b7a5c;--brand-dark:#085c45;--ink:#1c2430;--muted:#5a6572;--bg:#f7f9f8;--card:#fff;--accent:#f4b942}
*{box-sizing:border-box}
body{margin:0;font-family:"Inter",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;color:var(--ink);background:var(--bg);line-height:1.6}
.container{max-width:900px;margin:0 auto;padding:0 1.25rem}
.site-header{background:var(--card);border-bottom:1px solid #e3e8e5;position:sticky;top:0;z-index:10}
.site-header .container{display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:.5rem;padding-top:.75rem;padding-bottom:.75rem}
.logo{font-weight:800;font-size:1.2rem;color:var(--ink);text-decoration:none}
.logo span{color:var(--brand)}
.site-nav a{color:var(--muted);text-decoration:none;margin-left:1rem;font-size:.95rem}
.site-nav a:hover{color:var(--brand)}
.hero{padding:2.5rem 0 1rem}
.hero h1{margin:0 0 .5rem;font-size:2rem;line-height:1.2}
.lead{color:var(--muted);font-size:1.1rem;margin:0}
.tool-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:1rem;padding:1rem 0 2rem}
.tool-card{background:var(--card);border:1px solid #e3e8e5;border-radius:12px;padding:1.25rem;text-decoration:none;color:var(--ink);transition:box-shadow .15s,border-color .15s}
.tool-card:hover{box-shadow:0 4px 16px rgba(0,0,0,.08);border-color:var(--brand)}
.tool-card h2{margin:0 0 .4rem;font-size:1.05rem;color:var(--brand-dark)}
.tool-card p{margin:0;color:var(--muted);font-size:.95rem}
.calculator{display:grid;grid-template-columns:1fr 1fr;gap:1.5rem;background:var(--card);border:1px solid #e3e8e5;border-radius:12px;padding:1.5rem;margin:1rem 0 2rem}
@media(max-width:640px){.calculator{grid-template-columns:1fr}}
.calc-form{display:flex;flex-direction:column;gap:1rem}
.calc-form label{display:flex;flex-direction:column;gap:.3rem;font-size:.9rem;font-weight:600;color:var(--muted)}
.calc-form input,.calc-form select{padding:.6rem;border:1px solid #cfd6d2;border-radius:8px;font-size:1rem;font-family:inherit}
.calc-form input:focus{outline:2px solid var(--brand);border-color:var(--brand)}
.btn{background:var(--brand);color:#fff;border:none;border-radius:8px;padding:.75rem 1.5rem;font-size:1rem;font-weight:700;cursor:pointer}
.btn:hover{background:var(--brand-dark)}
.calc-result{background:var(--bg);border-radius:10px;padding:1.25rem;align-self:start}
.calc-result .big{font-size:2.2rem;font-weight:800;color:var(--brand-dark);margin:.25rem 0}
.calc-result .note{color:var(--muted);font-size:.9rem}
.content h2{margin-top:2rem;font-size:1.3rem}
.content p{color:#333e4a}
.faq{margin:2rem 0}
.faq h2{font-size:1.3rem}
.faq details{background:var(--card);border:1px solid #e3e8e5;border-radius:8px;padding:.9rem 1.1rem;margin:.5rem 0}
.faq summary{font-weight:700;cursor:pointer}
.site-footer{border-top:1px solid #e3e8e5;margin-top:3rem;padding:1.5rem 0;color:var(--muted);font-size:.9rem}
.site-footer nav a{color:var(--muted)}.invoice-template{white-space:pre-wrap;background:#111;color:#eee;padding:1rem;border-radius:8px;font-size:.9rem}
main p a,main li a,main td a{color:var(--brand-dark);text-decoration:underline;text-underline-offset:2px}
main p a:hover,main li a:hover,main td a:hover{color:var(--brand)}
a:focus-visible{outline:2px solid var(--brand);outline-offset:2px}
h1,h2,h3{letter-spacing:-.015em;line-height:1.25;text-wrap:balance}
table,.calc-result,.tool-card h2{font-variant-numeric:tabular-nums}
main table{width:100%;border-collapse:collapse;margin:1.25rem 0;font-size:.95rem}
main th,main td{padding:.6rem .75rem;text-align:left;border-bottom:1px solid #e3e8e5;vertical-align:top}
main thead th{background:#eef4f1;font-weight:700;border-bottom:2px solid var(--brand);white-space:nowrap}
main tbody tr:nth-child(even){background:#fbfdfc}
main tbody tr:hover{background:#f2f7f4}
main tbody td:first-child{font-weight:600}
.table-wrap{overflow-x:auto;-webkit-overflow-scrolling:touch;margin:1.25rem 0}
.table-wrap table{margin:0}
@media(max-width:640px){main th,main td{padding:.5rem;font-size:.88rem}}
.splitbar{display:flex;height:12px;border-radius:7px;overflow:hidden;margin:.7rem 0 .3rem;background:#eef2f0}
.splitbar i{display:block;height:100%}
.splitbar i:nth-child(1){background:var(--brand-dark)}
.splitbar i:nth-child(2){background:var(--accent)}
.splitbar i:nth-child(3){background:#93a1ad}
.splitbar i:nth-child(4){background:#d4dbdf}
.pw5{width:5%}.pw10{width:10%}.pw15{width:15%}.pw20{width:20%}.pw25{width:25%}.pw30{width:30%}.pw35{width:35%}.pw40{width:40%}.pw45{width:45%}.pw50{width:50%}.pw55{width:55%}.pw60{width:60%}.pw65{width:65%}.pw70{width:70%}.pw75{width:75%}.pw80{width:80%}.pw85{width:85%}.pw90{width:90%}.pw95{width:95%}.pw100{width:100%}
.dot{display:inline-block;width:.7em;height:.7em;border-radius:50%;margin-right:.3em;vertical-align:baseline}
.dot.k1{background:var(--brand-dark)}.dot.k2{background:var(--accent)}.dot.k3{background:#93a1ad}.dot.k4{background:#d4dbdf}
.method{border-left:4px solid var(--brand);background:#eef4f1;padding:.8rem 1rem;border-radius:0 8px 8px 0;margin:1.5rem 0;font-size:.95rem}
.embed-pair{display:grid;grid-template-columns:1fr 1fr;gap:1.5rem;align-items:start;margin:1rem 0 2rem}
.embed-pair .livedemo{margin:0}
.embed-code textarea{width:100%;font-family:ui-monospace,monospace;font-size:.8rem}
@media(max-width:860px){.embed-pair{grid-template-columns:1fr}}