:root{--bg:#0b0d12;--panel:#12151d;--panel2:#181c26;--line:#262b38;--text:#eef0f5;--muted:#9aa2b4;--accent:#ff8c29;--accent2:#ffb36b;--ok:#3ccf91;--bad:#ff6b6b;--radius:14px;color-scheme:dark}
*{box-sizing:border-box}html,body{margin:0;background:var(--bg);color:var(--text);font:16px/1.6 Inter,-apple-system,"Segoe UI",Roboto,sans-serif;-webkit-font-smoothing:antialiased}
a{color:var(--accent2)}a:hover{color:var(--accent)}
.w{max-width:1080px;margin:0 auto;padding:0 20px}
header.top{position:sticky;top:0;z-index:20;background:rgba(11,13,18,.88);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
header.top .w{display:flex;align-items:center;gap:18px;height:62px}
.logo{display:flex;align-items:center;gap:10px;font-weight:800;letter-spacing:-.01em;color:var(--text);text-decoration:none;font-size:18px}
.logo i{display:inline-grid;place-items:center;width:30px;height:30px;border-radius:9px;background:linear-gradient(135deg,var(--accent),#ff5e3a);font-style:normal;color:#111;font-weight:900}
nav.links{display:flex;gap:18px;margin-left:auto;align-items:center;flex-wrap:wrap}nav.links a{color:var(--muted);text-decoration:none;font-size:14px}nav.links a:hover{color:var(--text)}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:0;border-radius:11px;padding:12px 18px;font:inherit;font-weight:700;cursor:pointer;text-decoration:none;background:var(--accent);color:#14100b}
.btn:hover{background:var(--accent2);color:#14100b}.btn.ghost{background:transparent;color:var(--text);border:1px solid var(--line)}.btn.ghost:hover{border-color:var(--muted);color:var(--text)}
.btn.small{padding:8px 12px;font-size:14px;border-radius:9px}.btn[disabled]{opacity:.55;cursor:not-allowed}
.hero{padding:76px 0 40px}.eyebrow{display:inline-block;font-size:13px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--accent);margin-bottom:14px}
h1{font-size:clamp(34px,5.4vw,58px);line-height:1.05;letter-spacing:-.03em;margin:0 0 18px}h2{font-size:clamp(26px,3.4vw,36px);letter-spacing:-.02em;line-height:1.15;margin:0 0 14px}h3{font-size:19px;margin:0 0 6px}
.lead{font-size:clamp(17px,2vw,20px);color:var(--muted);max-width:720px}
section{padding:56px 0;border-top:1px solid var(--line)}
.grid{display:grid;gap:16px}.g3{grid-template-columns:repeat(auto-fit,minmax(240px,1fr))}.g2{grid-template-columns:repeat(auto-fit,minmax(320px,1fr))}
.card{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:22px}
.card p{margin:6px 0 0;color:var(--muted)}
.feat{columns:3 240px;column-gap:28px;padding:0;margin:18px 0 0;list-style:none}.feat li{break-inside:avoid;padding:10px 0;border-bottom:1px dashed var(--line)}.feat b{display:block}.feat span{color:var(--muted);font-size:14px}
.price{display:grid;gap:16px;grid-template-columns:repeat(auto-fit,minmax(230px,1fr));margin-top:22px}
.plan{position:relative;background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:22px;cursor:pointer;transition:border-color .15s}
.plan input{position:absolute;opacity:0}.plan:has(input:checked){border-color:var(--accent);box-shadow:0 0 0 1px var(--accent) inset}
.plan .m{font-weight:800;font-size:20px}.plan .t{font-size:34px;font-weight:800;letter-spacing:-.02em;margin:8px 0 2px}.plan .s{color:var(--muted);font-size:14px}
.buy{margin-top:22px;background:var(--panel2);border:1px solid var(--line);border-radius:var(--radius);padding:22px;display:grid;gap:12px;max-width:640px}
input[type=email],input[type=text],textarea,select{width:100%;background:#0d1016;border:1px solid var(--line);color:var(--text);border-radius:10px;padding:12px 14px;font:inherit}
input:focus,textarea:focus,select:focus{outline:2px solid rgba(255,140,41,.45);border-color:var(--accent)}
.row{display:flex;gap:10px;flex-wrap:wrap;align-items:center}.muted{color:var(--muted)}.small{font-size:14px}.tiny{font-size:12.5px}
.notice{border:1px solid var(--line);background:var(--panel2);border-radius:12px;padding:12px 14px;font-size:15px}.notice.ok{border-color:rgba(60,207,145,.5)}.notice.bad{border-color:rgba(255,107,107,.55)}
.pill{display:inline-block;border:1px solid var(--line);border-radius:99px;padding:3px 10px;font-size:13px;color:var(--muted)}
details{background:var(--panel);border:1px solid var(--line);border-radius:12px;padding:14px 18px;margin:10px 0}summary{cursor:pointer;font-weight:700}details p{color:var(--muted);margin:10px 0 2px}
footer.foot{border-top:1px solid var(--line);padding:30px 0 44px;color:var(--muted);font-size:14px}
.chat-demo{background:var(--panel);border:1px solid var(--line);border-radius:18px;padding:18px;display:grid;gap:12px;max-width:760px;margin-top:30px}
.bubble{border-radius:14px;padding:12px 14px;max-width:92%}.bubble.u{background:#232838;justify-self:end}.bubble.a{background:#151a24;border:1px solid var(--line)}
.bubble.a b{color:var(--accent2)}
.hide{display:none!important}
@media (max-width:720px){nav.links a.opt{display:none}.hero{padding-top:44px}}