:root {
  --primary:#0f766e;
  --accent:#f59e0b;
  --dark:#0f172a;
  --light:#f8fafc;
}
*{box-sizing:border-box} body{margin:0;font-family:Inter,Segoe UI,Arial,sans-serif;background:linear-gradient(135deg,#f8fafc,#e2e8f0);color:var(--dark)}
a{color:var(--primary);text-decoration:none} img{max-width:100%;border-radius:16px}
.hero{min-height:100vh;background:linear-gradient(120deg,rgba(15,23,42,0.95),rgba(15,118,110,0.85)),url('https://images.unsplash.com/photo-1512918728675-ed5a9ecdebfd?auto=format&fit=crop&w=1400&q=80');background-size:cover;background-position:center;color:white;padding:2rem 3rem}
.nav{display:flex;justify-content:space-between;align-items:center;max-width:1200px;margin:0 auto}.brand{font-size:1.4rem;font-weight:700}.links a{color:white;margin-left:1rem}.hero-content{max-width:700px;margin:8rem auto 0}.hero-content h1{font-size:3.5rem}.btn{display:inline-block;padding:0.9rem 1.2rem;background:var(--accent);color:#111;border-radius:999px;font-weight:700;margin-top:1rem}
.section{max-width:1200px;margin:3rem auto;padding:0 1.5rem}.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:1.2rem}.card{background:white;padding:1.3rem;border-radius:18px;box-shadow:0 10px 30px rgba(0,0,0,0.08)}
.footer{max-width:1200px;margin:2rem auto;padding:1.5rem;display:flex;justify-content:space-between;align-items:center}.content-page{max-width:900px;margin:3rem auto;padding:1.5rem;background:white;border-radius:20px;box-shadow:0 12px 40px rgba(0,0,0,0.08)}.inner-nav{max-width:1200px;margin:0 auto;padding:1rem 1.5rem}.inner-nav .links a{color:var(--dark)}
iframe{width:100%;min-height:320px;border:none;border-radius:16px;margin-top:1rem}
@media (max-width:700px){.hero{padding:1rem}.hero-content h1{font-size:2.3rem}.footer{flex-direction:column;gap:0.7rem}}