:root{
  --ink:#0a0a0f;
  --mist:#f5f5f7;
  --graphite:#1d1d1f;
  --gray:#6e6e73;
  --indigo:#6366f1;
  --violet:#a855f7;
  --mint:#22c55e;
  --grad:linear-gradient(135deg,var(--indigo),var(--violet));
  --font: -apple-system,BlinkMacSystemFont,"SF Pro Display","Inter",Segoe UI,Roboto,Helvetica,Arial,sans-serif;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:var(--font);color:var(--graphite);background:#fff;-webkit-font-smoothing:antialiased}
img{max-width:100%;display:block}
a{text-decoration:none;color:inherit}
.container{max-width:1120px;margin:0 auto;padding:0 24px}
section{padding:110px 0}
.eyebrow{font-size:13px;font-weight:700;letter-spacing:.06em;text-transform:uppercase;color:var(--indigo);margin-bottom:14px}
h1,h2,h3{margin:0;letter-spacing:-0.02em;font-weight:700}
h1{font-size:clamp(38px,6vw,68px);line-height:1.05}
h2{font-size:clamp(28px,4vw,42px);line-height:1.1}
p{line-height:1.6;color:var(--gray);font-size:18px}
.center{text-align:center}
.grad-text{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}

/* Buttons */
.btn{display:inline-flex;align-items:center;gap:8px;padding:14px 28px;border-radius:999px;font-weight:600;font-size:16px;cursor:pointer;border:none;transition:transform .2s ease, box-shadow .2s ease}
.btn-primary{background:var(--grad);color:#fff;box-shadow:0 8px 24px rgba(99,102,241,.35)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 12px 28px rgba(99,102,241,.45)}
.btn-secondary{background:transparent;color:var(--graphite);border:1.5px solid rgba(0,0,0,.15)}
.btn-secondary:hover{border-color:var(--graphite)}
.btn-light{background:#fff;color:var(--graphite)}
.btn[disabled]{opacity:.5;cursor:not-allowed;box-shadow:none;transform:none}

/* Nav */
header{position:fixed;top:0;left:0;right:0;z-index:100;backdrop-filter:saturate(180%) blur(20px);background:rgba(255,255,255,.72);border-bottom:1px solid rgba(0,0,0,.06)}
.nav{display:flex;align-items:center;justify-content:space-between;padding:14px 24px;max-width:1120px;margin:0 auto}
.brand{display:flex;align-items:center;gap:10px;font-weight:700;font-size:18px}
.brand img{width:30px;height:30px}
.nav-links{display:flex;gap:32px;font-size:15px;font-weight:500}
.nav-links a{color:var(--graphite);opacity:.8}
.nav-links a:hover{opacity:1}
.nav-cta{display:flex;gap:12px;align-items:center}
.nav .btn{padding:10px 20px;font-size:14px}
.menu-toggle{display:none;background:none;border:none;font-size:24px;cursor:pointer}

/* Hero */
.hero{position:relative;min-height:100vh;display:flex;align-items:center;padding-top:110px;background:var(--ink);color:#fff;overflow:hidden}
.hero-bg{position:absolute;inset:0;background-image:url("https://images.unsplash.com/photo-1519389950473-47ba0277781c?w=1800&q=70");background-size:cover;background-position:center;opacity:.35}
.hero-overlay{position:absolute;inset:0;background:linear-gradient(180deg,rgba(10,10,15,.55),rgba(10,10,15,.92) 85%)}
.hero-content{position:relative;z-index:2;max-width:760px;margin:0 auto;text-align:center;padding:0 24px}
.hero p{color:rgba(255,255,255,.75);font-size:20px;max-width:600px;margin:24px auto 36px}
.hero-actions{display:flex;gap:16px;justify-content:center;flex-wrap:wrap}
.hero-stats{position:relative;z-index:2;display:flex;justify-content:center;gap:56px;margin-top:80px;flex-wrap:wrap}
.hero-stats div{text-align:center}
.hero-stats b{display:block;font-size:32px;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero-stats span{font-size:14px;color:rgba(255,255,255,.6)}

/* Logos strip */
.trust{padding:48px 0;background:var(--mist)}
.trust p{text-align:center;font-size:13px;letter-spacing:.06em;text-transform:uppercase;color:var(--gray);margin-bottom:24px}
.trust-row{display:flex;justify-content:center;align-items:center;gap:48px;flex-wrap:wrap;opacity:.65;font-weight:700;font-size:18px;color:var(--graphite)}

/* Courses */
.courses{background:#fff}
.section-head{max-width:640px;margin:0 auto 64px;text-align:center}
.course-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:28px}
.card{border-radius:24px;background:#fff;border:1px solid rgba(0,0,0,.08);overflow:hidden;transition:transform .25s ease, box-shadow .25s ease;display:flex;flex-direction:column}
.card:hover{transform:translateY(-6px);box-shadow:0 20px 40px rgba(0,0,0,.1)}
.card-img{height:180px;background-size:cover;background-position:center;position:relative}
.badge{position:absolute;top:14px;left:14px;background:#fff;color:var(--graphite);font-size:12px;font-weight:700;padding:6px 12px;border-radius:999px}
.badge-soon{background:rgba(0,0,0,.55);color:#fff;backdrop-filter:blur(6px)}
.badge-live{background:var(--mint);color:#fff}
.card-body{padding:24px;display:flex;flex-direction:column;gap:12px;flex:1}
.card-body h3{font-size:20px}
.card-body p{font-size:15px;margin:0;flex:1}
.card-meta{display:flex;gap:14px;font-size:13px;color:var(--gray);font-weight:600}
.card-footer{display:flex;align-items:center;justify-content:space-between;margin-top:8px}
.price{font-weight:700;font-size:18px}
.card.soon{opacity:.72}
.card.soon .card-img{filter:grayscale(.4)}

/* Value props */
.values{background:var(--ink);color:#fff}
.values h2{color:#fff}
.value-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:32px;margin-top:56px}
.value-item{padding:28px;border-radius:20px;background:rgba(255,255,255,.04);border:1px solid rgba(255,255,255,.08)}
.value-item .icon{width:44px;height:44px;border-radius:12px;background:var(--grad);display:flex;align-items:center;justify-content:center;font-size:20px;margin-bottom:18px}
.value-item h3{font-size:18px;color:#fff;margin-bottom:8px}
.value-item p{color:rgba(255,255,255,.6);font-size:15px}

/* Newsletter / leads */
.leads{background:var(--mist)}
.leads-box{max-width:640px;margin:0 auto;text-align:center}
.lead-form{display:flex;gap:12px;margin-top:32px;flex-wrap:wrap;justify-content:center}
.lead-form input{flex:1;min-width:240px;padding:14px 20px;border-radius:999px;border:1.5px solid rgba(0,0,0,.12);font-size:16px;font-family:var(--font)}
.lead-form input:focus{outline:none;border-color:var(--indigo)}
.lead-msg{margin-top:16px;font-size:14px;font-weight:600}
.lead-msg.ok{color:var(--mint)}
.lead-msg.err{color:#ef4444}

/* Footer */
footer{background:var(--ink);color:rgba(255,255,255,.6);padding:64px 0 32px}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:32px}
.footer-brand{display:flex;align-items:center;gap:10px;color:#fff;font-weight:700;font-size:18px;margin-bottom:12px}
.footer-brand img{width:28px;height:28px}
footer h4{color:#fff;font-size:14px;margin-bottom:16px}
footer ul{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:10px;font-size:14px}
.footer-bottom{margin-top:56px;padding-top:24px;border-top:1px solid rgba(255,255,255,.1);display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px;font-size:13px}

@media (max-width:860px){
  .nav-links{display:none}
  .menu-toggle{display:block}
  .footer-grid{grid-template-columns:1fr 1fr}
  section{padding:72px 0}
}