body {
  font-family: 'Segoe UI', sans-serif;
  margin: 0;
  background-color: #111;
  color: #f0f0f0;
}

.banner {
  width: 100%;
  max-width: 375px;
  aspect-ratio: 1 / 1;
  object-fit: cover;
  display: block;
  margin: 0 auto;
  border-bottom: 4px solid #00e676;
}

.cta-top {
  text-align: center;
  background-color: #1b1b1b;
  color: #00e676;
  padding: 30px 20px;
}

.cta-top h1 {
  font-size: 32px;
  margin: 10px 0;
}

.cta-top p {
  font-size: 16px;
  color: #fff;
  margin-bottom: 20px;
}

.cta-button {
  background-color: #00e676;
  color: #000;
  padding: 12px 28px;
  border-radius: 30px;
  text-decoration: none;
  font-weight: bold;
  transition: background 0.3s;
}

.cta-button:hover {
  background-color: #00c853;
}

.cta-button.secondary {
  background-color: #29b6f6;
  color: white;
}

.cta-button.secondary:hover {
  background-color: #0288d1;
}

main {
  max-width: 900px;
  margin: auto;
  padding: 40px 20px;
}

.content h2 {
  color: #00e676;
}

.content p {
  line-height: 1.8;
  margin-bottom: 20px;
}

.cta-bottom {
  background-color: #1e1e1e;
  padding: 40px 20px;
  text-align: center;
  border-radius: 10px;
  margin-top: 40px;
}

.cta-bottom h2 {
  color: #29b6f6;
  margin-bottom: 20px;
}

.note {
  font-size: 13px;
  color: #aaa;
  margin-top: 10px;
}

footer {
  background-color: #000;
  text-align: center;
  padding: 20px;
  font-size: 14px;
  color: #777;
}

footer a {
  color: #00e676;
  text-decoration: none;
}