body {
  margin: 0;
  font-family: Arial, sans-serif;
  background: #f8fafc;
  color: #111;
}

.container {
  max-width: 800px;
  margin: 40px auto;
  padding: 20px;
  background: #ffffff;
  border-radius: 8px;
  box-shadow: 0 2px 10px rgba(0,0,0,0.1);
  text-align: center;
}

/* Make container full width with some padding on small screens */
@media (max-width: 600px) {
  .container {
    max-width: 95%;
    margin: 20px auto;
    padding: 15px;
  }
}

input[type="file"] {
  margin: 20px auto;
  max-width: 100%;
  display: block;
}

code {
  display: block;
  background: #f0f0f0;
  padding: 10px;
  margin: 10px 0;
  text-align: left;
  overflow-x: auto;
  white-space: pre-wrap;
  font-size: 14px;
}

/* Slightly smaller font on small devices for code */
@media (max-width: 600px) {
  code {
    font-size: 12px;
  }
}

button {
  margin: 5px;
  padding: 6px 12px;
  background: #007aff;
  border: none;
  color: white;
  border-radius: 5px;
  cursor: pointer;
  font-size: 16px;
}

/* Adjust button size and padding on small screens */
@media (max-width: 600px) {
  button {
    padding: 10px 16px;
    font-size: 18px;
  }
}

button:hover {
  background: #005ecb;
}

/* iOS style hyperlink */
.ios-link {
  color: #007aff;           /* iOS blue color */
  font-weight: 600;         /* semi-bold */
  font-size: 17px;          /* iOS default font size for links */
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen,
    Ubuntu, Cantarell, "Open Sans", "Helvetica Neue", sans-serif;
  text-decoration: none;    /* no underline */
  cursor: pointer;
  transition: color 0.25s ease;
  user-select: none;
}

.ios-link:hover,
.ios-link:focus {
  color: #004ecb;           /* darker blue on hover/focus */
  text-decoration: underline; /* subtle underline on hover */
}