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

/* Global Scaling */
html {
  font-size: 16px;
}

body {
  font-family: Arial, sans-serif;
  width: 100%;
  overflow-x: hidden;
}

/* Images scale properly */
img {
  max-width: 100%;
  height: auto;
}

/* Containers adapt */
.container,
.wrapper,
.section {
  width: 100%;
  max-width: 1200px;
  margin: auto;
  padding: 20px;
}

/* Buttons scale */
button {
  width: 100%;
  padding: 12px;
  font-size: 1rem;
  border-radius: 6px;
  cursor: pointer;
}

/* Text blocks */
h1, h2, h3 {
  line-height: 1.2;
  margin-bottom: 15px;
}

p {
  line-height: 1.5;
  margin-bottom: 10px;
}

/* Flex layouts auto-stack on mobile */
.flex {
  display: flex;
  gap: 20px;
}

.grid {
  display: grid;
  gap: 20px;
}

/* Breakpoint for screens under 768px */
@media (max-width: 768px) {

  html { font-size: 15px; }

  .flex {
    flex-direction: column;
  }

  .grid {
    grid-template-columns: 1fr !important;
  }

  nav ul {
    flex-direction: column;
    gap: 12px;
  }

  header,
  nav,
  footer {
    text-align: center;
  }

  button {
    width: 100%;
  }
}

/* Small phones under 480px */
@media (max-width: 480px) {

  html { font-size: 14px; }

  button {
    padding: 14px;
    font-size: 1.1rem;
  }

  .container,
  .wrapper,
  .section {
    padding: 15px;
  }
}