*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: sans-serif;
  background-color: #f4f6f8;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
}

.landing {
  width: 100%;
  padding: 24px 16px;
}

.hero {
  max-width: 1200px;
  margin: 0 auto;
}

.hero-img {
  width: 100%;
  height: auto;
  display: block;
  border-radius: 8px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.12);
}

/* Tablet */
@media (max-width: 1024px) {
  .landing {
    padding: 20px 24px;
  }
}

/* Mobile landscape */
@media (max-width: 768px) {
  .landing {
    padding: 16px 12px;
  }

  .hero-img {
    border-radius: 6px;
  }
}

/* Mobile portrait */
@media (max-width: 480px) {
  .landing {
    padding: 12px 8px;
  }

  .hero-img {
    border-radius: 4px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
  }
}