* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: Arial, Helvetica, sans-serif;
}

body {
  background: #0f2a1d;
  text-align: center;
  color: #eaffea;
}

/* HEADER */
.header {
  background: #ffffff;
  padding: 18px 0;
  border-bottom: 1px solid #e5e5e5;
}

.logo {
  max-width: 180px;
  filter: drop-shadow(0 2px 4px rgba(0,0,0,0.15));
}

/* BANNER */
.banner {
  margin: 30px auto 0;
}

.banner img {
  width: 100%;
  max-width: 1200px;
  border-radius: 14px;
  box-shadow: 0 15px 40px rgba(0,0,0,0.35);
}

/* CTA */
.cta-center {
  margin: 45px 0 70px;
}

.cta-button {
  display: inline-block;
  background: linear-gradient(135deg, #ffd700, #f4c430);
  color: #0f3d2e;
  padding: 18px 44px;
  font-size: 20px;
  font-weight: bold;
  border-radius: 50px;
  text-decoration: none;
  box-shadow: 0 12px 32px rgba(255, 215, 0, 0.4);
  transition: all 0.3s ease;
}

.cta-button:hover {
  transform: scale(1.07);
  box-shadow: 0 18px 48px rgba(255, 215, 0, 0.6);
}

/* FOOTER */
.footer {
  background: #0b1f16;
  padding: 16px 10px;
  color: #ffd700;
  font-size: 14px;
}