:root{
  --dark:#1f2d3d;
  --dark-2:#172433;
  --blue:#13b8e8;
  --blue-2:#08a5d3;
  --green:#73cf3f;
  --green-2:#55b82d;
  --light:#f5fbfd;
  --white:#ffffff;
  --text:#233142;
  --muted:#64748b;
  --border:#d9f4fb;
  --shadow:0 12px 35px rgba(31,45,61,.10);
}

*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:Arial,Helvetica,sans-serif;
  color:var(--text);
  background:radial-gradient(circle at top left,rgba(19,184,232,.10),transparent 35%),var(--light);
  line-height:1.6;
}
a{text-decoration:none;color:inherit}
img{max-width:100%;display:block}

.header{
  background:rgba(31,45,61,.96);
  position:sticky;
  top:0;
  z-index:100;
  box-shadow:0 4px 20px rgba(0,0,0,.15);
  backdrop-filter:blur(10px);
}
.nav{max-width:1180px;margin:auto;display:flex;align-items:center;justify-content:space-between;padding:12px 20px}
.brand{display:flex;align-items:center;gap:12px;color:var(--white);font-weight:800;font-size:20px}
.brand img{width:58px;height:58px;border-radius:50%;box-shadow:0 0 0 3px rgba(255,255,255,.10)}
.nav-links{display:flex;align-items:center;gap:26px;color:var(--white);font-weight:700}
.nav-links a:not(.btn){position:relative}
.nav-links a:not(.btn)::after{content:"";position:absolute;left:0;bottom:-6px;width:0;height:3px;background:var(--green);border-radius:10px;transition:.25s}
.nav-links a:not(.btn):hover::after{width:100%}
.menu-btn{display:none;background:none;border:0;color:#fff;font-size:30px;cursor:pointer}

.btn{
  display:inline-block;
  background:linear-gradient(135deg,var(--blue),var(--green));
  color:#fff;
  padding:14px 24px;
  border-radius:40px;
  font-weight:800;
  border:0;
  cursor:pointer;
  box-shadow:0 8px 22px rgba(19,184,232,.25);
  transition:transform .2s,box-shadow .2s;
}
.btn:hover{transform:translateY(-2px);box-shadow:0 12px 28px rgba(19,184,232,.35)}
.btn.small{padding:10px 18px}
.btn.outline{background:transparent;border:2px solid var(--blue);color:var(--dark);box-shadow:none}

.hero{min-height:720px;display:grid;grid-template-columns:1.1fr .9fr;align-items:center;gap:40px;max-width:1180px;margin:auto;padding:80px 20px}
.hero h1{font-size:54px;line-height:1.08;color:var(--dark);margin:14px 0 20px}
.hero p{font-size:19px;max-width:650px;color:#334155}
.tag{text-transform:uppercase;letter-spacing:2px;color:var(--blue);font-weight:900;font-size:14px}
.hero-buttons{display:flex;gap:15px;margin-top:30px;flex-wrap:wrap}
.hero-logo{text-align:center;position:relative}
.hero-logo::before{content:"";position:absolute;inset:20px;background:linear-gradient(135deg,var(--blue),var(--green));filter:blur(50px);opacity:.25;z-index:-1}
.hero-logo img{max-width:430px;width:100%;margin:auto;border-radius:28px;box-shadow:0 20px 60px rgba(31,45,61,.22)}

section{scroll-margin-top:100px}
.cards,.why,.split,.contact{max-width:1180px;margin:0 auto 70px;padding:60px 20px;background:#fff;border-radius:30px;box-shadow:var(--shadow)}
.section-title{text-align:center;margin-bottom:35px}.section-title h2,.split h2,.contact h2{font-size:38px;color:var(--dark);line-height:1.2}
.grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.card,.feature{padding:28px;border-radius:22px;background:linear-gradient(180deg,#fff,#f0fbff);border:1px solid var(--border);transition:transform .2s,box-shadow .2s}
.card:hover,.feature:hover{transform:translateY(-5px);box-shadow:0 14px 30px rgba(31,45,61,.10)}
.card h3,.feature h3{color:var(--dark);margin-bottom:10px;font-size:22px}
.card p,.feature p,.split p,.contact p{color:#475569}

.split{display:grid;grid-template-columns:1fr 1fr;gap:35px;align-items:center}
.checklist{background:linear-gradient(135deg,var(--dark),var(--dark-2));color:#fff;padding:30px;border-radius:24px;font-size:20px}
.checklist p{margin:12px 0;color:#fff}
.three{grid-template-columns:repeat(3,1fr)}
.contact{display:grid;grid-template-columns:.9fr 1.1fr;gap:35px;align-items:start}
form{display:grid;gap:14px}
input,select,textarea{width:100%;padding:15px;border:1px solid #cbe6ee;border-radius:14px;font-size:16px;outline:none;transition:border .2s,box-shadow .2s;background:#fff}
input:focus,select:focus,textarea:focus{border-color:var(--blue);box-shadow:0 0 0 4px rgba(19,184,232,.14)}
textarea{min-height:130px;resize:vertical}
.form-message{display:none;padding:13px 15px;border-radius:14px;background:#eafbe4;color:#245b12;font-weight:700}
.form-message.show{display:block}

.reveal{opacity:0;transform:translateY(24px);transition:opacity .65s ease,transform .65s ease}
.reveal.visible{opacity:1;transform:translateY(0)}
.back-to-top{position:fixed;right:18px;bottom:18px;width:46px;height:46px;border-radius:50%;border:0;background:linear-gradient(135deg,var(--blue),var(--green));color:#fff;font-size:22px;font-weight:900;cursor:pointer;box-shadow:0 12px 28px rgba(31,45,61,.22);display:none;z-index:99}
.back-to-top.show{display:block}

footer{background:var(--dark);color:#fff;text-align:center;padding:35px 20px}
footer img{width:90px;border-radius:50%;margin:0 auto 10px}

@media(max-width:850px){
  .menu-btn{display:block}
  .nav-links{display:none;position:absolute;left:0;right:0;top:82px;background:var(--dark);flex-direction:column;padding:25px;box-shadow:0 18px 30px rgba(0,0,0,.18)}
  .nav-links.show{display:flex}
  .hero,.split,.contact{grid-template-columns:1fr}
  .hero{padding-top:45px;min-height:auto;text-align:center}
  .hero p{margin:auto}.hero-buttons{justify-content:center}.hero h1{font-size:38px}
  .grid,.three{grid-template-columns:1fr}
  .cards,.why,.split,.contact{border-radius:20px;margin-bottom:30px;padding:42px 18px}
  .brand span{font-size:17px}
}

.hide-field{display:none!important}
.thank-you-page{min-height:100vh;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;padding:30px;background:var(--light)}
.thank-you-page img{width:150px;border-radius:50%;margin-bottom:20px}
.thank-you-page h1{font-size:44px;color:var(--dark);margin-bottom:10px}
.thank-you-page p{font-size:18px;color:var(--muted);margin-bottom:25px}