:root {
  --max-width: 1000px;
  --pad: 1rem;

  --bg: #f9f9f9;
  --text: #222;
  --muted: #555;

  --card-bg: #fff;
  --border: #e5e5e5;

  --link: #0056b3;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: Arial, Helvetica, sans-serif;
  font-size: 16px;
  line-height: 1.6;
  color: var(--text);
  background: var(--bg);
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

a {
  color: var(--link);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--pad);
}

.site-header {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 2rem var(--pad) 1rem;
}

.site-header h1 {
  margin: 0 0 0.25rem;
  line-height: 1.1;
}

.tagline {
  margin: 0 0 1rem;
  color: var(--muted);
}

.site-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.site-nav a {
  display: inline-block;
  padding: 0.5rem 0.75rem;
  border: 1px solid var(--border);
  border-radius: 0.5rem;
  background: var(--card-bg);
}

.card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 0.75rem;
  padding: 1rem;
  margin: 1rem 0;
}

.card h2 {
  margin: 0 0 0.75rem;
}

.site-footer {
  text-align: center;
  padding: 2rem var(--pad);
  color: var(--muted);
}

@media (min-width: 800px) {

  .site-header {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    gap: 1.5rem;
  }

  .tagline {
    margin: 0;
    max-width: 55ch;
  }

main.container.cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.25rem;
  align-items: start;
}

main.container > section.projects {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.25rem;
  align-items: start;
}

main.container > section.projects > article.projects {
  margin: 0;
}
}

@media (max-width: 768px) {
  .sticky-name {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 20;
    margin: 0;
    padding: .75rem 1rem .25rem;
    text-align: center;

    background: var(--bg);
    border-bottom: 1px solid var(--border);

  }

  .sticky-nav {
    position: fixed;
    top: 3.5rem;
    left:0;
    right: 0;
    z-index: 20;
    background: var(--bg);
    border-bottom: 1px solid var(--border);
    padding: .5rem 1rem;
  }

  .site-nav {
    display: flex;
    flex-direction: row;
    justify-content: center;
    gap: .75rem;
    flex-wrap: wrap;
  }

  .site-header {
    padding-top: 7.25rem;
    text-align: center;
  }

  .tagline {
    margin: 0 0 1rem;
  }

  
}