:root{--bg:#f7f8fc;--card:#fff;--text:#1b1f33;--muted:#5d6480;--brand:#5b4bff;--brand2:#00a98f;--line:#e3e6f3}
@media (prefers-color-scheme:dark){:root{--bg:#0f1220;--card:#181c30;--text:#eef0fb;--muted:#9aa1c4;--line:#2a2f4d;--brand2:#00c2a8}}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--text);font-family:system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;line-height:1.55}
.wrap{max-width:1040px;margin:0 auto;padding:0 20px}
header{display:flex;justify-content:space-between;align-items:center;padding:20px 0}
.logo{font-weight:800;font-size:24px;letter-spacing:-.5px}
.logo span{color:var(--brand)}
.btn{display:inline-block;background:var(--brand);color:#fff;border:0;padding:13px 24px;border-radius:12px;font-weight:600;font-size:16px;text-decoration:none;cursor:pointer}
.btn:hover{opacity:.9}
.btn.block{width:100%}
.hero{text-align:center;padding:56px 0 40px}
.badge{display:inline-block;background:rgba(0,194,168,.15);color:var(--brand2);padding:6px 14px;border-radius:99px;font-weight:600;font-size:14px}
h1{font-size:clamp(32px,6vw,56px);line-height:1.1;margin:18px 0;letter-spacing:-1.5px}
h1 em{font-style:normal;background:linear-gradient(90deg,var(--brand),var(--brand2));-webkit-background-clip:text;background-clip:text;color:transparent}
.lead{max-width:640px;margin:0 auto 28px;color:var(--muted);font-size:18px}
.features{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:16px;padding:24px 0 48px}
.f{background:var(--card);border:1px solid var(--line);border-radius:16px;padding:22px}
.f .i{font-size:28px}
.f h3{margin:8px 0 6px}
.f p{margin:0;color:var(--muted);font-size:15px}
.formbox{background:var(--card);border:1px solid var(--line);border-radius:20px;padding:32px;margin-bottom:56px}
.formbox h2{margin:0 0 4px;font-size:28px}
.formbox .sub{margin:0 0 22px;color:var(--muted)}
.grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.full{grid-column:1/-1}
label{display:block;font-size:14px;font-weight:600;margin-bottom:5px}
input,select{width:100%;padding:12px 14px;border:1px solid var(--line);border-radius:10px;background:var(--bg);color:var(--text);font:inherit}
input:focus,select:focus{outline:2px solid var(--brand);border-color:transparent}
.hp{position:absolute;left:-9999px;opacity:0;height:0;width:0}
.note{font-size:13px;color:var(--muted);margin-top:12px}
.alert{padding:14px 16px;border-radius:12px;margin-bottom:18px;font-weight:600}
.alert.ok{background:rgba(0,194,168,.15);color:var(--brand2)}
.alert.err{background:rgba(229,57,53,.12);color:#e53935}
footer{border-top:1px solid var(--line);padding:24px 0;color:var(--muted);font-size:14px;text-align:center}
@media(max-width:600px){.grid{grid-template-columns:1fr}.formbox{padding:22px}}
.domain{display:flex;flex-wrap:nowrap;align-items:stretch;border:1px solid var(--line);border-radius:10px;background:var(--bg);overflow:hidden}
.domain:focus-within{outline:2px solid var(--brand);border-color:transparent}
.domain input{border:0;border-radius:0;background:transparent;outline:0;min-width:0}
.domain input:first-child{flex:1 1 auto;text-align:right;padding-right:2px}
.domain input:last-child{flex:0 0 auto;width:9.5em;padding-left:2px;color:var(--muted)}
.hint{font-size:13px;color:var(--muted);margin:6px 0 0}