:root{--ink:#0B1A1D;--ink2:#14272B;--teal:#2FD1B8;--warm:#C6613F;--bg:#F4F8F7;--mute:#5b706d;--line:#dbe7e4}
*{box-sizing:border-box}html{scroll-behavior:smooth}
body{margin:0;font:16px/1.6 system-ui,-apple-system,"Segoe UI",Roboto,Arial,sans-serif;color:var(--ink);background:#fff}
a{color:inherit}
.wrap{max-width:1120px;margin:0 auto;padding:0 20px}
.skip{position:absolute;left:-999px}.skip:focus{left:10px;top:10px;background:#fff;padding:8px;z-index:99}
header.nav{position:sticky;top:0;z-index:20;background:rgba(11,26,29,.94);backdrop-filter:blur(8px);color:#fff}
.nav .wrap{display:flex;align-items:center;justify-content:space-between;height:64px}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;letter-spacing:.08em;text-decoration:none;font-size:14px}
.nav nav{display:flex;gap:22px;align-items:center;font-size:15px}
.nav nav a{text-decoration:none;opacity:.85}.nav nav a:hover{opacity:1}
.btn{display:inline-block;padding:13px 22px;border-radius:12px;font-weight:700;text-decoration:none;border:2px solid transparent;cursor:pointer;font-size:16px;font-family:inherit;opacity:1!important}
.btn-p{background:var(--warm);color:#fff}.btn-p:hover{background:#b0522f}
.btn-g{border-color:rgba(255,255,255,.35);color:#fff}.btn-g:hover{border-color:var(--teal)}
.btn-w{background:#25D366;color:#06210f}
.hero{background:radial-gradient(900px 500px at 85% 0,#16443f 0,transparent 60%),var(--ink);color:#fff;padding:72px 0 80px}
.hero .wrap{display:grid;grid-template-columns:1.1fr .9fr;gap:48px;align-items:center}
.kicker{color:var(--teal);font-weight:700;letter-spacing:.08em;text-transform:uppercase;font-size:13px}
h1{font-size:clamp(34px,5vw,56px);line-height:1.08;margin:12px 0 18px;letter-spacing:-.02em}
.lead{font-size:19px;color:#c9dcd8;max-width:560px}
.cta{display:flex;gap:12px;flex-wrap:wrap;margin:28px 0 22px}
.chips{display:flex;gap:10px;flex-wrap:wrap;padding:0;list-style:none;margin:0}
.chips li{border:1px solid rgba(47,209,184,.4);color:var(--teal);padding:6px 14px;border-radius:99px;font-size:14px;font-weight:600}
.dash{background:#10262a;border:1px solid rgba(47,209,184,.25);border-radius:18px;padding:18px;box-shadow:0 30px 60px rgba(0,0,0,.35)}
.dash small{color:#8fb1ab}.grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin:12px 0}
.kpi{background:#14272B;border-radius:12px;padding:12px}.kpi b{display:block;font-size:20px;color:#fff}.kpi span{font-size:12px;color:#8fb1ab}.up{color:var(--teal)!important}
.chat{background:#14272B;border-radius:12px;padding:12px;font-size:14px;color:#c9dcd8}.chat .q{background:#1c3a3f;border-radius:10px;padding:8px 12px;margin-bottom:8px;color:#fff}
section{padding:80px 0}.alt{background:var(--bg)}
h2{font-size:clamp(28px,3.4vw,40px);line-height:1.15;margin:0 0 12px;letter-spacing:-.01em}
.sub{color:var(--mute);max-width:640px;margin:0 0 40px;font-size:18px}
.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.card{background:#fff;border:1px solid var(--line);border-radius:18px;padding:28px}
.card h3{margin:14px 0 8px;font-size:22px}.card p{color:var(--mute);margin:0 0 14px}.card ul{margin:0;padding-left:18px}
.ic{width:52px;height:52px;border-radius:14px;background:var(--ink);display:grid;place-items:center}
.ic svg{width:28px;height:28px;stroke:var(--teal);fill:none;stroke-width:2.2;stroke-linecap:round;stroke-linejoin:round}
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.stat{padding:22px;border-radius:16px;background:var(--ink);color:#fff}.stat b{display:block;font-size:30px;color:var(--teal)}.stat span{font-size:14px;color:#b7cfca}
.calc{display:grid;grid-template-columns:1fr 1fr;gap:32px;align-items:center;background:var(--ink);color:#fff;border-radius:24px;padding:40px}
.calc label{display:block;margin:14px 0 6px;color:#b7cfca;font-size:14px}
.calc input[type=number]{width:100%;padding:12px;border-radius:10px;border:1px solid #2b4a4f;background:#10262a;color:#fff;font-size:18px}
.calc input[type=range]{width:100%;accent-color:#2FD1B8}
.res{background:#10262a;border-radius:18px;padding:26px}.res .big{font-size:42px;font-weight:800;color:var(--warm)}.res .zero{font-size:26px;font-weight:800;color:var(--teal)}
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;counter-reset:s;list-style:none;padding:0;margin:0}
.steps li{counter-increment:s;background:#fff;border:1px solid var(--line);border-radius:16px;padding:22px}
.steps li:before{content:counter(s);display:grid;place-items:center;width:34px;height:34px;border-radius:50%;background:var(--teal);color:var(--ink);font-weight:800;margin-bottom:10px}
.steps b{display:block;margin-bottom:4px}.steps span{color:var(--mute);font-size:15px}
.inds{display:flex;flex-wrap:wrap;gap:10px}.inds span{background:#fff;border:1px solid var(--line);border-radius:99px;padding:8px 16px;font-weight:600}
details{background:#fff;border:1px solid var(--line);border-radius:14px;padding:16px 20px;margin-bottom:10px}summary{cursor:pointer;font-weight:700}details p{margin:10px 0 0;color:var(--mute)}
.demo{background:var(--ink);color:#fff}.demo .wrap{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:start}
form{background:#fff;color:var(--ink);border-radius:20px;padding:28px}form label{display:block;font-weight:600;font-size:14px;margin:12px 0 4px}
form input,form select,form textarea{width:100%;padding:12px;border:1px solid #c9d9d5;border-radius:10px;font:inherit}
form button{width:100%;margin-top:16px}
.note{font-size:14px;margin-top:10px}
footer{background:#071214;color:#9db7b2;padding:36px 0;font-size:14px}footer .wrap{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap}
.wa{position:fixed;right:18px;bottom:18px;z-index:30;box-shadow:0 10px 30px rgba(0,0,0,.3)}
.page{padding:64px 0}.page p{max-width:720px;color:var(--mute);font-size:18px}
@media(max-width:860px){.hero .wrap,.calc,.demo .wrap{grid-template-columns:1fr}.cards,.stats,.steps{grid-template-columns:1fr 1fr}.nav nav a:not(.btn){display:none}}
@media(max-width:560px){.cards,.stats,.steps{grid-template-columns:1fr}section{padding:56px 0}}