:root{color-scheme:dark;--bg:#020b16;--text:#eaf2fb;--muted:#b9cde4;--cyan:#00b8ff;--line:#124062}
*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text);font:16px/1.65 Inter,system-ui,-apple-system,'Segoe UI',Roboto,Arial,sans-serif}
a{color:var(--cyan)}a:hover{text-decoration:underline}
.wrap{width:min(860px,92%);margin-inline:auto}
header.top{display:flex;align-items:center;gap:16px;justify-content:space-between;padding:22px 0;border-bottom:1px solid var(--line)}
header.top .brand{display:flex;align-items:center;gap:10px;color:var(--text);text-decoration:none;font-weight:700;letter-spacing:1.2px}
header.top .brand img{width:30px;height:37px}
header.top nav{display:flex;gap:16px;align-items:center;font-size:14px}
.docs{display:flex;flex-wrap:wrap;gap:8px 18px;padding:16px 0;border-bottom:1px solid var(--line);font-size:14px}
.docs a{color:var(--muted);text-decoration:none;padding:4px 0}.docs a[aria-current]{color:#fff;border-bottom:2px solid var(--cyan)}
h1{font-size:clamp(28px,5vw,40px);line-height:1.15;letter-spacing:-.8px;margin:34px 0 8px}
h2{font-size:21px;margin:34px 0 8px;letter-spacing:-.3px}h3{font-size:17px;margin:22px 0 6px;color:#fff}
p{color:var(--muted);margin:0 0 14px}ul{color:var(--muted);margin:0 0 16px;padding-left:22px}li{margin:6px 0}
strong{color:#fff}
mark.ph{background:#ffd54a33;color:#ffe08a;border:1px dashed #ffd54a99;border-radius:4px;padding:0 4px;font-weight:500}
.note{font-size:13px;color:#8fa9c6;border:1px solid var(--line);border-radius:10px;padding:10px 14px;margin:18px 0 0}
footer{border-top:1px solid var(--line);margin-top:48px;padding:22px 0 40px;font-size:13px;color:#8fa9c6}
form{margin:26px 0}.field{margin:0 0 16px}.field label,.check{display:block;font-size:14px;color:#cfe0f2;margin-bottom:6px}
.field input,.field select,.field textarea{width:100%;background:#071729;color:var(--text);border:1px solid #1f4568;border-radius:10px;padding:11px 12px;font:inherit}
.field input:focus,.field select:focus,.field textarea:focus{outline:2px solid #31c3ff;outline-offset:1px}
fieldset.copy{border:1px solid var(--line);border-radius:12px;padding:16px 16px 4px;margin:0 0 16px}fieldset.copy[hidden]{display:none}
.check{display:flex;gap:10px;align-items:flex-start;line-height:1.5;margin:0 0 14px}.check input{margin-top:4px;width:auto}
.hp{position:absolute;left:-9999px;height:0;overflow:hidden}[hidden]{display:none!important}
button.send{background:linear-gradient(105deg,#006fff,#6923ff 40%,#ee00c4 70%,#ff8d22);color:#fff;border:0;border-radius:12px;padding:14px 22px;font:inherit;font-weight:700;cursor:pointer;min-width:200px}
button.send:disabled{opacity:.6;cursor:wait}.form-error{color:#ff9c9c;margin:0 0 14px}.form-ok{color:#9be29b;font-weight:600;margin:16px 0 0}
@media(max-width:560px){header.top{flex-direction:column;align-items:flex-start}}