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

html,
body {
  height: 100vh;
}

body {
  min-height: 100vh;
  overflow-x: hidden;
  background: linear-gradient(135deg, #071f3a 0%, #0d4d8f 100%);
  display: grid;
  place-items: center;
  padding: 0px;
  font-family: Arial, Helvetica, sans-serif;
}

.cover-page {
  width: 100%;
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 16px;
}

.cover-page img {
  display: block;
  width: min(90vw, 720px);
  max-width: 100%;
  height: auto;
  max-height: min(84vh, 720px);
  object-fit: contain;
  border-radius: 24px;
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.2);
}

@media (max-width: 640px) {
  body {
    padding: 0;
  }

  .cover-page {
    padding: 8px;
    min-height: 100vh;
  }

  .cover-page img {
    width: 100%;
    max-width: 100%;
    max-height: 100vh;
    border-radius: 0;
  }
}

@media (max-width: 420px) {
  .cover-page {
    border-radius: 20px;
    padding: 20px;
  }
  .cover-page img {
  display: block;
  width: min(90vw, 720px);
  max-width: 100%;
  height: auto;
  max-height: min(84vh, 720px);
  object-fit: contain;
  border-radius: 24px;
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.2);
}
}