:root{--bg:#f7f7f5;--fg:#1b1d21;--muted:#5b6170;--card:#fff;--line:#e2e3e0;--accent:#c2410c;--accent-fg:#fff;--focus:#2563eb;--max:1040px}
@media (prefers-color-scheme:dark){:root{--bg:#111316;--fg:#ecedef;--muted:#a3a8b3;--card:#1a1d22;--line:#2b2f36;--accent:#f97316;--accent-fg:#111316;--focus:#60a5fa}}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--fg);font:16px/1.55 system-ui,-apple-system,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif}
a{color:inherit}
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{outline:3px solid var(--focus);outline-offset:2px}
.wrap{max-width:var(--max);margin:0 auto;padding:0 16px}
header.top{border-bottom:1px solid var(--line)}
header.top .wrap{display:flex;align-items:center;justify-content:space-between;height:60px}
.brand{font-weight:800;letter-spacing:.08em;font-size:20px;text-decoration:none}
.brand span{color:var(--accent)}
nav a{color:var(--muted);text-decoration:none;margin-left:18px;font-size:15px}
nav a:hover{color:var(--fg)}
.hero{padding:72px 0 48px}
.hero h1{font-size:clamp(30px,5vw,48px);line-height:1.12;margin:0 0 18px;max-width:20ch}
.hero p{font-size:clamp(17px,2.2vw,20px);color:var(--muted);max-width:60ch;margin:0 0 28px}
.btn{display:inline-block;background:var(--accent);color:var(--accent-fg);border:0;border-radius:8px;padding:13px 22px;font:inherit;font-weight:650;text-decoration:none;cursor:pointer}
.btn:hover{filter:brightness(1.07)}
.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(280px,100%),1fr));gap:20px;padding-top:8px;padding-bottom:56px}
.card{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:26px}
.card .n{display:inline-block;font-size:13px;font-weight:700;color:var(--accent);letter-spacing:.06em;text-transform:uppercase;margin-bottom:8px}
.card h2{font-size:22px;margin:0 0 10px;line-height:1.25}
.card p{margin:0 0 10px;color:var(--muted)}
.card ul{margin:0;padding-left:20px;color:var(--muted)}
.card li{margin:4px 0}
.proof{border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:40px 0}
.proof h2{font-size:24px;margin:0 0 10px}
.proof p{color:var(--muted);max-width:70ch;margin:0}
section.start{padding:56px 0 72px}
section.start h2{font-size:28px;margin:0 0 8px}
section.start>.wrap>p{color:var(--muted);margin:0 0 26px;max-width:60ch}
form.lead{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:26px;display:grid;grid-template-columns:1fr 1fr;gap:16px 20px}
form.lead .full{grid-column:1/-1}
label{display:block;font-weight:600;font-size:15px;margin-bottom:6px}
label small{font-weight:400;color:var(--muted)}
input,select,textarea{width:100%;font:inherit;color:var(--fg);background:var(--bg);border:1px solid var(--line);border-radius:8px;padding:10px 12px}
textarea{min-height:96px;resize:vertical}
.hp{position:absolute;left:-10000px;width:1px;height:1px;overflow:hidden}
.privacy{font-size:14px;color:var(--muted);margin:0}
.offline{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:26px}
footer{border-top:1px solid var(--line);padding:26px 0;color:var(--muted);font-size:14px}
footer .wrap{display:flex;gap:18px;flex-wrap:wrap;justify-content:space-between}
.doc{padding:48px 0 64px;max-width:72ch}
.doc h1{font-size:32px;margin:0 0 16px}
.doc h2{font-size:20px;margin:28px 0 8px}
.doc p,.doc li{color:var(--muted)}
.btn-ghost{background:transparent;color:var(--fg);border:1px solid var(--line);margin-left:10px}
small.chatlink{display:block;color:var(--muted);font-size:14px;margin-top:10px;max-width:60ch}
.bp-webchat{height:min(640px,75vh);margin-top:20px}
.bp-webchat:empty{display:none}
.chat-fail{color:var(--accent)}
.qa-banner{background:#7c3aed;color:#fff;text-align:center;padding:8px 16px;font-weight:600;font-size:14px}
@media (max-width:640px){form.lead{grid-template-columns:1fr}.hero{padding:48px 0 32px}nav a{margin-left:12px}}