:root{
  --navy:#0F1F2E;
  --navy2:#0B1A28;
  --slate:#5E6B75;
  --green:#2DBE7E;
  --bg:#F6F8FA;
  --white:#FFFFFF;
}
*{box-sizing:border-box}
body{margin:0;font-family:Inter,system-ui,Segoe UI,Roboto,Helvetica,Arial,sans-serif;color:#0b1320;background:var(--bg)}
a{color:var(--green);text-decoration:none}
.container{max-width:1120px;margin:0 auto;padding:24px}
header{background:linear-gradient(135deg,var(--navy) 0%, var(--navy2) 60%, var(--navy) 100%);color:#fff}
.nav{display:flex;gap:18px;align-items:center;justify-content:space-between;padding:10px 0}
.nav a{color:#fff;font-weight:650}
.brand{display:flex;align-items:center;gap:12px}
.brand img{height:44px;width:auto;display:block;max-width:260px;object-fit:contain}
h1{font-size:46px;line-height:1.05;margin:12px 0}
h2{font-size:32px;margin:0 0 8px}
h3{font-size:22px;margin:0 0 6px}
p{line-height:1.6}
header p{color:#fff;opacity:.95}
.badge{display:inline-block;background:#0a2b1f;color:#7df2c1;padding:6px 10px;border-radius:999px;font-weight:800;font-size:12px}
.hero{display:grid;grid-template-columns:1.1fr .9fr;gap:28px;align-items:center;padding:10px 0 32px}
.card{background:#fff;border-radius:18px;padding:20px;box-shadow:0 10px 22px rgba(0,0,0,.06)}
.section{padding:54px 0}
.grid{display:grid;gap:24px}
.cards{grid-template-columns:repeat(3,1fr)}
.stepcard{display:flex;flex-direction:column}
.stepcard h3{min-height:56px}
.muted{color:var(--slate)}
.cta{display:inline-block;background:var(--green);color:#0b1320;padding:14px 18px;border-radius:12px;font-weight:900}
.note{background:#fff7e6;border:1px solid #ffe3a3;border-radius:12px;padding:14px}
.pricing{grid-template-columns:repeat(2,1fr)}
.price{font-size:36px;font-weight:950}
.list{padding-left:18px}
.list li{margin:8px 0}
footer{background:#0b1320;color:#c9d3e3}

/* Forms */
.buy{background:#fff;border-radius:16px;padding:20px}
.row{display:grid;grid-template-columns:1fr 1fr;gap:16px}
label{font-weight:750}
input,select,textarea,button{width:100%;padding:12px;border-radius:10px;border:1px solid #d8dee6;font-size:14px}
button{background:var(--navy);color:#fff;font-weight:900;border:none}

/* Demo shell */
.lms{background:#0b1320;border-radius:18px;overflow:hidden}
.lms-top{display:flex;align-items:center;justify-content:space-between;padding:12px 16px;background:#0F1F2E;color:#fff}
.lms-top .left{display:flex;align-items:center;gap:10px}
.lms-top img{height:26px;width:auto;max-width:180px;object-fit:contain}
.progress{height:10px;background:#dfe7ef;border-radius:999px;overflow:hidden;width:180px}
.progress span{display:block;height:100%;width:58%;background:var(--green)}
.lms-body{display:grid;grid-template-columns:270px 1fr;background:#eef2f6;min-height:520px}
.lms-nav{background:#fff;border-right:1px solid #d8dee6;padding:12px}
.lms-nav .item{padding:10px 12px;border-radius:10px;margin-bottom:6px;font-weight:750;color:#0b1320}
.lms-nav .item.active{background:#e8f7f1;border-left:4px solid var(--green)}
.lms-content{padding:20px}
.lesson{background:#fff;border-radius:14px;padding:18px;margin-bottom:14px;box-shadow:0 6px 14px rgba(0,0,0,.06)}
.lesson img{width:100%;border-radius:12px;display:block;margin:12px 0}
.kv{display:grid;gap:8px;margin-top:8px}
.kv .k{font-weight:900}
.kv .v{color:var(--slate)}
@media(max-width:900px){
  .hero{grid-template-columns:1fr}
  .cards,.pricing{grid-template-columns:1fr}
  .row{grid-template-columns:1fr}
  .lms-body{grid-template-columns:1fr}
  h1{font-size:38px}
  .progress{width:140px}
  .brand img{height:38px;max-width:220px}
}