:root{--primary:#0b6fd6;--dark:#0c2a46;--text:#25384b;--muted:#64788c;--bg:#ffffff;--alt:#f2f7fc;--line:#dce6f0;--radius:14px}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:70px}
body{margin:0;font-family:system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;color:var(--text);background:var(--bg);line-height:1.55}
img{max-width:100%}
a{color:var(--primary)}
.wrap{max-width:1100px;margin:0 auto;padding:0 18px}
.narrow{max-width:640px}
.center{text-align:center}

.topbar{position:sticky;top:0;z-index:50;background:#fff;border-bottom:1px solid var(--line)}
.topbar-in{display:flex;align-items:center;justify-content:space-between;height:62px}
.brand{display:flex;align-items:center;gap:10px;font-weight:700;color:var(--dark);text-decoration:none;font-size:18px}
.brand img{height:38px;width:auto;border-radius:6px}
.brand-ico{font-size:26px}
.nav{display:flex;gap:22px}
.nav a{text-decoration:none;color:var(--text);font-weight:500}
.nav a:hover{color:var(--primary)}
.burger{display:none;background:none;border:0;font-size:26px;cursor:pointer;color:var(--dark)}

.hero{background:linear-gradient(135deg,var(--primary),#06305f);background-size:cover;background-position:center;color:#fff;padding:84px 0 92px}
.hero h1{font-size:clamp(28px,5vw,46px);line-height:1.15;margin:0 0 14px;max-width:760px}
.hero p{font-size:clamp(16px,2.2vw,19px);max-width:620px;opacity:.95;margin:0 0 26px}
.hero-btns{display:flex;gap:12px;flex-wrap:wrap}

.btn{display:inline-block;padding:13px 24px;border-radius:12px;border:2px solid var(--primary);background:var(--primary);color:#fff;font-weight:600;font-size:16px;text-decoration:none;cursor:pointer;text-align:center}
.btn:hover{filter:brightness(1.08)}
.btn-light{background:#fff;color:var(--primary);border-color:#fff}
.btn-outline{background:transparent;border-color:#fff;color:#fff}
.btn-sm{padding:9px 16px;font-size:14px}
.btn-ghost{background:transparent;color:var(--primary)}
.btn-block{display:block;width:100%}
.btn-install{margin-top:18px;background:rgba(255,255,255,.15);border-color:rgba(255,255,255,.6)}
.btn[hidden]{display:none}

.sec{padding:64px 0}
.sec-alt{background:var(--alt)}
.sec h2{font-size:clamp(24px,4vw,32px);margin:0 0 8px;color:var(--dark)}
.sub{color:var(--muted);margin:0 0 30px}

.cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:18px}
.card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:22px;display:flex;flex-direction:column;box-shadow:0 2px 10px rgba(12,42,70,.04)}
.card-ico{font-size:34px;margin-bottom:6px}
.card h3{margin:0 0 8px;color:var(--dark);font-size:19px}
.card p{margin:0 0 12px;color:var(--muted);font-size:15px}
.card .price{color:var(--primary);font-weight:700}
.card-btns{margin-top:auto;display:flex;gap:8px;flex-wrap:wrap}

.about{display:grid;grid-template-columns:1fr;gap:28px;align-items:center}
.about:has(.about-img){grid-template-columns:1fr 1fr}
.about-img{width:100%;border-radius:var(--radius);object-fit:cover;max-height:380px}

.form{display:grid;gap:16px;background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:24px}
.form label{display:grid;gap:6px;font-weight:600;font-size:14px;color:var(--dark)}
.form input,.form select,.form textarea{width:100%;padding:12px 13px;border:1px solid #c4d3e2;border-radius:10px;font:inherit;font-weight:400;background:#fff;color:var(--text)}
.form input:focus,.form select:focus,.form textarea:focus{outline:2px solid var(--primary);outline-offset:0;border-color:var(--primary)}
.row2{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.hp{position:absolute;left:-9999px;opacity:0;height:0;width:0}

.flash-wrap{margin-top:18px}
.flash{padding:13px 16px;border-radius:10px;margin-bottom:10px;font-weight:600}
.flash-ok{background:#e4f6ea;color:#14663a;border:1px solid #b8e3c8}
.flash-err{background:#fde8e8;color:#9b1c1c;border:1px solid #f4bcbc}

.contact{list-style:none;padding:0;margin:24px 0 0;display:grid;gap:10px;font-size:17px}
.footer{background:var(--dark);color:#cfe0f0;text-align:center;padding:22px 0;font-size:14px}

.wa-float{position:fixed;right:16px;bottom:16px;width:56px;height:56px;border-radius:50%;background:#25d366;color:#fff;font-size:28px;display:flex;align-items:center;justify-content:center;text-decoration:none;box-shadow:0 6px 18px rgba(0,0,0,.25);z-index:60}

@media(max-width:760px){
  .burger{display:block}
  .nav{position:absolute;top:62px;left:0;right:0;background:#fff;border-bottom:1px solid var(--line);flex-direction:column;gap:0;display:none}
  .nav.open{display:flex}
  .nav a{padding:14px 18px;border-top:1px solid var(--line)}
  .hero{padding:56px 0 64px}
  .sec{padding:46px 0}
  .row2{grid-template-columns:1fr}
  .about:has(.about-img){grid-template-columns:1fr}
}