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

:root {
  --primary-color: #ffba00;
  --secundary-color: #fff1cc;
  --shadow-color: #ccc;
  --text-color: #fff;
}

body {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  font-family: "karla", sans-serif;
  position: relative;
}

header {
  background-color: var(--primary-color);
  height: 70px;
  text-align: center;
  line-height: 70px;
  box-shadow: 0 1px 2px var(--shadow-color);
}

.header-title {
  color: black;
  font-size: 2rem;
}

main {
  flex-grow: 1;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  width: 90%;
  margin: 5vh auto;
  padding: 50px;
  box-shadow: 2px 2px 10px var(--shadow-color);
  gap: 20px;
}

footer {
  width: 100;
  text-align: center;
  font-weight: 200;
  font-style: italic;
  padding: 20px;
}

@media (max-width: 480px) {
  header {
    position: fixed;
    width: 100%;
  }
  .header-title {
    font-size: 1.5rem;
  }

  main {
    padding: 0;
    margin: 20px 0 0 0;
    width: 100%;
    box-shadow: none;
  }
}