:root{--bg:#FFFFFF;--soft:#F6F7F5;--ink:#141716;--muted:#5E6662;--line:#E6E8E4;--acc:#2F7A55;--acc-ink:#FFFFFF;--hi:#FFF4C2;--r:14px}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]){--bg:#0F1211;--soft:#171B19;--ink:#ECEFEC;--muted:#A0A9A4;--line:#262C29;--acc:#6CC79A;--acc-ink:#0F1211;--hi:#3A3413}}
:root[data-theme="dark"]{--bg:#0F1211;--soft:#171B19;--ink:#ECEFEC;--muted:#A0A9A4;--line:#262C29;--acc:#6CC79A;--acc-ink:#0F1211;--hi:#3A3413}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--ink);font:16px/1.6 Inter,ui-sans-serif,system-ui,-apple-system,"Segoe UI",sans-serif;-webkit-font-smoothing:antialiased}
a{color:inherit}
:focus-visible{outline:3px solid var(--acc);outline-offset:2px}
.top{border-bottom:1px solid var(--line)}
.top div{max-width:1080px;margin:0 auto;padding:14px 16px;display:flex;gap:22px;align-items:center;flex-wrap:wrap;font-size:15px}
.top .brand{font-weight:800;font-size:17px;text-decoration:none;margin-right:auto}
.top a:not(.brand){text-decoration:none;color:var(--muted)}.top a:hover{color:var(--ink)}
.top .cta{background:var(--ink);color:var(--bg)!important;padding:8px 14px;border-radius:10px;font-weight:600}
main{max-width:1080px;margin:0 auto;padding:56px 16px 80px}
.hero{text-align:center;max-width:720px;margin:0 auto 48px}
h1{font-size:clamp(34px,5.2vw,56px);line-height:1.05;letter-spacing:-.035em;margin:0;font-weight:800}
.hero p{color:var(--muted);font-size:18px;margin:16px auto 0;max-width:56ch}
.meta{font-size:14px;color:var(--muted);margin-top:14px}
h2{font-size:22px;letter-spacing:-.015em;margin:48px 0 16px}
.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
@media (max-width:900px){.grid{grid-template-columns:1fr 1fr}}@media (max-width:600px){.grid{grid-template-columns:1fr}}
.card{display:flex;flex-direction:column;border:1px solid var(--line);border-radius:var(--r);padding:20px;text-decoration:none;background:var(--bg);transition:border-color .15s}
.card:hover{border-color:var(--acc)}
.card strong{font-size:17px}
.card p{color:var(--muted);font-size:15px;margin:8px 0 16px;flex:1}
.card span{color:var(--acc);font-weight:600;font-size:15px}
/* tool page */
.tool{display:grid;grid-template-columns:380px 1fr;gap:28px;align-items:start}
@media (max-width:860px){.tool{grid-template-columns:1fr}}
.panel{border:1px solid var(--line);border-radius:var(--r);padding:20px;background:var(--soft)}
label{display:block;font-size:14px;font-weight:600;margin:14px 0 6px}
label:first-child{margin-top:0}
input,select,textarea{width:100%;padding:11px 12px;font:inherit;border:1px solid var(--line);border-radius:10px;background:var(--bg);color:var(--ink)}
textarea{min-height:150px;resize:vertical}
.row{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.check{display:flex;gap:8px;align-items:center;font-weight:500;margin-top:14px}.check input{width:auto}
button{display:block;width:100%;margin-top:18px;padding:13px 18px;font:inherit;font-weight:700;border:0;border-radius:10px;background:var(--acc);color:var(--acc-ink);cursor:pointer}
button.ghost{background:transparent;color:var(--ink);border:1px solid var(--line);margin-top:10px}
.preview{border:1px solid var(--line);border-radius:var(--r);background:#fff;min-height:420px;display:flex;align-items:center;justify-content:center;overflow:hidden}
.preview iframe{width:100%;height:640px;border:0}
.note{font-size:14px;color:var(--muted);margin-top:10px}
.err{color:#C0392B;font-size:14px;margin-top:8px}
.upsell{margin-top:56px;border:1px solid var(--line);border-radius:var(--r);padding:28px;display:grid;grid-template-columns:1.2fr 1fr;gap:24px;align-items:center;background:var(--soft)}
@media (max-width:760px){.upsell{grid-template-columns:1fr}}
.upsell h3{margin:0;font-size:22px;letter-spacing:-.015em}.upsell p{color:var(--muted);margin:8px 0 0}
.upsell form{display:flex;gap:8px;flex-wrap:wrap}.upsell form input{flex:1 1 200px}.upsell form button{width:auto;margin:0}
.prose{max-width:70ch;margin-top:56px}.prose h2{margin-top:32px}.prose p,.prose li{color:var(--muted)}
footer{border-top:1px solid var(--line);margin-top:72px}
footer div{max-width:1080px;margin:0 auto;padding:20px 16px;font-size:14px;color:var(--muted);display:flex;gap:18px;flex-wrap:wrap}