:root{
  --bg:#070914; --bg2:#0d1225; --card:#10172c; --line:#1e90ff;
  --pink:#ff2db2; --cyan:#20d6ff; --text:#ffffff; --muted:#b9c3d8; --green:#25D366;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:Arial,Helvetica,sans-serif;background:radial-gradient(circle at top,#111a38 0,#070914 45%,#03040a 100%);color:var(--text)}
a{color:inherit;text-decoration:none}
.container{width:min(1180px,92%);margin:auto}
.topbar{position:sticky;top:0;z-index:20;background:rgba(5,8,20,.92);backdrop-filter:blur(10px);border-bottom:1px solid rgba(32,214,255,.25)}
.nav{display:flex;align-items:center;justify-content:space-between;gap:20px;padding:12px 0}
.logo{display:flex;align-items:center;gap:12px}
.logo img{width:78px;height:78px;object-fit:contain;border-radius:12px}
.logo strong{display:block;font-size:24px;letter-spacing:1px}
.logo span{color:var(--muted);font-size:12px}
.menu{display:flex;gap:18px;align-items:center;font-weight:bold;font-size:14px}
.menu a:hover{color:var(--cyan)}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;padding:13px 18px;border-radius:10px;font-weight:bold;border:1px solid rgba(255,255,255,.12);transition:.2s}
.btn:hover{transform:translateY(-2px)}
.btn-primary{background:linear-gradient(90deg,var(--cyan),#006bff);box-shadow:0 0 18px rgba(32,214,255,.35)}
.btn-pink{background:linear-gradient(90deg,var(--pink),#7c2cff);box-shadow:0 0 18px rgba(255,45,178,.35)}
.btn-whats{background:var(--green);color:#fff}
.hero{padding:70px 0 45px;position:relative;overflow:hidden}
.hero:before{content:"";position:absolute;right:-140px;top:-120px;width:520px;height:520px;border-radius:50%;background:radial-gradient(circle,rgba(255,45,178,.35),transparent 62%)}
.hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:35px;align-items:center}
.badge{display:inline-block;color:var(--cyan);font-weight:bold;letter-spacing:1px;margin-bottom:18px}
.hero h1{font-size:clamp(38px,6vw,76px);line-height:.95;margin:0 0 18px;text-transform:uppercase}
.hero h1 span{background:linear-gradient(90deg,var(--cyan),var(--pink));-webkit-background-clip:text;color:transparent}
.hero p{font-size:19px;color:var(--muted);max-width:650px;line-height:1.5}
.hero-actions{display:flex;flex-wrap:wrap;gap:15px;margin-top:28px}
.hero-card{background:rgba(16,23,44,.75);border:1px solid rgba(32,214,255,.28);border-radius:24px;padding:28px;text-align:center;box-shadow:0 0 40px rgba(32,214,255,.12)}
.hero-card img{width:100%;max-width:420px;border-radius:20px}
.features{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin:20px 0 45px}
.feature{background:rgba(16,23,44,.85);border:1px solid rgba(32,214,255,.24);border-radius:16px;padding:18px}
.feature strong{display:block;color:#fff;margin-bottom:5px}
.feature span{color:var(--muted);font-size:13px}
.section{padding:45px 0}
.section-title{text-align:center;margin:0 0 26px;font-size:30px;text-transform:uppercase;letter-spacing:2px}
.section-title span{color:var(--pink)}
.filters{display:flex;flex-wrap:wrap;gap:10px;justify-content:center;margin-bottom:25px}
.filter{background:#111a33;border:1px solid rgba(32,214,255,.25);color:#fff;padding:10px 14px;border-radius:999px;cursor:pointer}
.filter.active,.filter:hover{background:linear-gradient(90deg,var(--cyan),var(--pink))}
.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.card{background:linear-gradient(180deg,rgba(18,27,52,.98),rgba(8,11,23,.98));border:1px solid rgba(32,214,255,.24);border-radius:18px;overflow:hidden;box-shadow:0 0 24px rgba(0,0,0,.25)}
.card img{width:100%;height:230px;object-fit:contain;background:#fff;padding:12px}
.card-body{padding:18px}
.card h3{margin:0 0 8px;font-size:19px}
.category{display:inline-block;color:var(--cyan);font-size:12px;font-weight:bold;margin-bottom:8px}
.code{color:var(--muted);font-size:13px;margin:8px 0}
.card p{color:var(--muted);line-height:1.45;font-size:14px}
.card .btn{width:100%;margin-top:12px}
.gifts .card{border-color:rgba(255,45,178,.35)}
.course-box{display:grid;grid-template-columns:.8fr 1.2fr;gap:24px;align-items:center;background:rgba(16,23,44,.82);border:1px solid rgba(255,45,178,.25);border-radius:22px;padding:25px}
.course-list{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}
.course-item{background:#0b1022;border:1px solid rgba(32,214,255,.25);border-radius:14px;padding:18px}
.contact{background:linear-gradient(90deg,rgba(32,214,255,.12),rgba(255,45,178,.12));border-top:1px solid rgba(255,255,255,.08);border-bottom:1px solid rgba(255,255,255,.08)}
.footer{background:#050713;padding:35px 0;color:var(--muted)}
.footer-grid{display:grid;grid-template-columns:1.2fr 1fr 1fr 1fr;gap:24px}
.footer strong{color:#fff}
.footer img{width:110px;border-radius:10px}
.float-whats{position:fixed;right:22px;bottom:22px;background:var(--green);color:#fff;width:62px;height:62px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:30px;box-shadow:0 0 18px rgba(37,211,102,.6);z-index:30}
@media(max-width:900px){
  .menu{display:none}.hero-grid,.course-box{grid-template-columns:1fr}.features{grid-template-columns:repeat(2,1fr)}.grid{grid-template-columns:repeat(2,1fr)}.footer-grid{grid-template-columns:1fr 1fr}
}
@media(max-width:600px){
  .logo img{width:58px;height:58px}.logo strong{font-size:18px}.hero{padding-top:40px}.features,.grid,.course-list,.footer-grid{grid-template-columns:1fr}.card img{height:210px}.hero-actions .btn{width:100%}
}