:root{
--green:#16a34a; /* green */
--red:#ef4444; /* red */
--bg:#f7fafc;
--text:#111827;
}
*{box-sizing:border-box}
body{font-family:Inter,system-ui,Arial,Helvetica,sans-serif;margin:0;background:var(--bg);color:var(--text)}
.container{max-width:1100px;margin:0 auto;padding:0 16px}
.site-header{background:#0f172a;color:#fff;padding:12px 0;position:sticky;top:0;z-index:20}
.header-inner{display:flex;align-items:center;justify-content:space-between}
.brand{display:flex;align-items:center;gap:10px}
.logo{width:46px;height:46px;object-fit:contain}
.company-name{font-weight:700;font-size:18px}
.nav{display:flex;gap:10px}
.btn{padding:8px 12px;border-radius:6px;text-decoration:none;color:inherit;border:1px solid rgba(255,255,255,0.08);background:transparent}
.btn.primary{background:var(--green);color:#fff}
.hamburger{display:none;background:transparent;border:0;color:#fff;font-size:22px}

.hero{padding:80px 0;background:linear-gradient(180deg, #fff 0%, #eef2ff 100%)}
.hero-inner{text-align:center}
.hero h1{font-size:34px;margin:0 0 12px}
.cta{display:inline-block;margin-top:12px;padding:10px 16px;border-radius:8px;background:var(--red);color:#fff;text-decoration:none}

.about{padding:40px 0}
.about-inner h2{margin-bottom:18px}
.about-grid{display:grid;grid-template-columns:1fr 280px;gap:20px;align-items:center}
.about-image img{width:100%;max-width:260px}

.courses{padding:30px 0}
.courses-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(140px,1fr));gap:12px}
.course{background:#fff;padding:18px;border-radius:8px;box-shadow:0 1px 3px rgba(0,0,0,0.06);text-align:center;font-weight:600}

.contact{padding:30px 0}
.contact-form{display:grid;gap:10px;max-width:520px}
.contact-form input,.contact-form textarea{padding:10px;border-radius:6px;border:1px solid #e5e7eb}

.site-footer{padding:16px 0;text-align:center;background:#fff;margin-top:20px}

@media(max-width:768px){
.about-grid{grid-template-columns:1fr}
.nav{display:none}
.hamburger{display:block}
}