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

body {
  min-height: 100vh;
  background-image: url('/images/milky-way-background-2.png');
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  background-color: #111318;
  background-attachment: fixed;
  color: #f5f5f5;
  font-family: Arial, Helvetica, sans-serif;
}

a {
  color: #c9cdd5;
}

a:hover,
a:focus {
  color: #72e0d1;
}

.eyebrow {
  color: #72e0d1;
  font-size: 0.875rem;
  font-weight: 700;
  letter-spacing: 0.15rem;
  margin-bottom: 0.75rem;
}

/* Navigation */
.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 1rem;
  margin-bottom: 1rem;
  padding: 1.25rem 5%;
  background-color: /*#191c22d9 this does the same thing, the d9 is opacity*/ rgba(25, 28, 34, 0.85);
  border-bottom: 1px solid #30343d;
}

.site-logo {
  color: #ffffff;
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: 0.12rem;
  text-decoration: none;
}

.site-logo:hover,
.site-logo:focus {
  color: #72e0d1;
}

.site-nav > /*child combinator forces only 1 level into .site-nav*/ ul {
  display: flex;
  gap: 2rem;
  list-style: none;
}

.site-nav a {
  color: #c9cdd5;
  text-decoration: none;
  transition: color 0.2s ease;
}

.site-nav a:hover,
.site-nav a:focus {
  color: #72e0d1;
}
/*coursework drop down menu*/
.coursework-dropdown {
  display: none;
  position: absolute;
  list-style: none;
  background-color: rgba(25, 28, 34, 0.9);
  padding: 0.5rem 0;
  min-width: 8rem;
  border-bottom: 1px solid #30343d;
}

.coursework-menu:hover .coursework-dropdown {
  display: block;
}

.coursework-menu {
  position: relative;
}

.coursework-dropdown a {
  display: block;
  padding: 0.5rem 1rem;
}

/*landing page*/
.intro {
  max-width: 700px;
  margin: 0 auto;
  padding: 6rem 1.5rem;
}

.intro h1 {
  font-size: 3rem;
  margin-bottom: 2rem;
}

.intro p {
  color: #c9cdd5;
  font-size: 1.1rem;
  line-height: 1.7;
  margin-bottom: 1.25rem;
}

.intro .moonshot {
  color: #ffffff;
  font-size: 1.4rem;
  letter-spacing: 0.08rem;
  margin-top: 2.5rem;
}

/*Tool Chains*/

.tooling-content {
  padding-left: 2rem;
  padding-right: 2rem;
}

.tooling-content h1 {
  margin-bottom: 2rem;
}

.tooling-content h2 {
  margin-bottom: 1.5rem;
}

.tooling-content h3 {
  margin-bottom: 1rem;
}

.tooling-content ul {
  padding-left: 2rem;
  margin-bottom: 1rem;
}