* {
  box-sizing: border-box;
}

:root {
  --white: #ffffff;
  --gray1: #333333;
  --gray2: #555555;
  --gray3: #cccccc;
  --gray4: #aaaaaa;

  --black: #080808;
  --teal: #006060;
  --lightteal: #008080;
  --purple: #800080;
  --navy: #000080;
  --cyan: #17a2b8;
  --violetred: #c71585;
  --red: #ff0000;
  --orange: #ffa500;
  --green: #006400;
}

html {
  scroll-behavior: smooth;
}

body {
  font-size: 1.2em;
  margin: 0px;
}

h1 {
  font-size: 64px;
  font-weight: 300;
  text-align: center;
  margin: 0;
}  

a {
  font-weight: 300;
  text-decoration: none;
  transition: 0.3s;
}

a:link,
a:visited {
  color: var(--black);
}

a:hover,
a:active {
  background-color: var(--black);
  color: var(--white);
}

.opposite-sides +* {
  clear: both;
}

.align-left {
  float: left;
  text-align: left;
}

.align-right {
  float: right;
  text-align: right;
}


/* Properties for main grid layout */

.grid-container {
  display: grid;
  grid: 1fr / [content-left] 1fr [content-right];
}

.grid-item {
  background-color: var(--white);
  color: var(--black);
  border-bottom: 1px solid var(--black);
  padding: 40px;
  font-family: 'IBM Plex Mono', monospace;
  font-weight: 500;
  font-size: 14px;
  text-align: center;
}

.fullwidth-item {
  grid-column: content-left / content-right;
}

.section-header {
  padding: 10px 5px 25px 5px;
}


/* Properties for header, including navbars */

#header {
  padding: 0;
}

#header .opposite-sides {
  height: 60px;
}

#initials {
  font-style: italic;
  font-size: 36px;
  height: inherit;
  margin: 0;
  padding: 6px 20px 0px 20px;
}

nav ul {
  list-style-type: none;
  margin: 0;
  padding: 0;
}

nav a {
  font-weight: 700;
  font-size: 16px;
  padding: 20px 20px 20px 20px;
}

#nav-static {
  display: none;
}

#nav-static ul {
  display: flex;
  height: 60px;
}

#nav-static li {
  margin: 0;
  padding: 20px 0px 20px 0px;
  border-left: 1px solid var(--black);
}

#nav-button {
  background-color: var(--white);
  color: var(--black);
  height: 60px;
  cursor: pointer;
  border: none;
  border-left: 1px solid var(--black);
  font-size: 24px;
  padding: 0px 20px 0px 20px;
}

#nav-collapsible {
  height: 0px;
  transition: 0.5s;
}

#nav-collapsible li {
  border-top: 1px solid var(--black);
}

#nav-collapsible a {
  display: flex;
  justify-content: center;
}


/* Properties for greeting and intro sections */

.grid-spacer {
  display: none;
}

#greeting,
#intro {
  font-size: 48px;
  padding: 0px 15% 0px 15%;
}


/* Properties for projects */

.project-container {
  display: grid;
  grid-template-columns: 1fr;
  padding: 0;
}

.project {
  width: 100%;
  padding: 40px;
}

#project1,
#project2 {
  border-bottom: 1px solid var(--black);
}

.project img {
  width: 100%;
  margin: 20px 0px 30px 0px;
}

.project p {
  margin-bottom: 36px;
}


/* Properties for work experience cells */

.experience {
  grid-area: span 1 / span 1;
}

.experience .opposite-sides > * {
  margin-top: 10px;
  margin-bottom: 35px;
}

.experience .align-left > *,
.experience .align-right > * {
  margin: 0px;
}

.dates {
  font-size: 20px;
  font-weight: 300;
}


/* Properties for work contact form */

#contact {
  padding-top: 60px;
  padding-bottom: 60px;
}

.form-row {
  display: flex;
  width: 100%;
  flex-flow: row wrap;
  align-items: center;
  gap: 20px;
  padding-top: 1.5em;
}

.form-row-item {
  flex-grow: 1;
}

input,
label,
textarea {
  float: left;
  font-family: 'IBM Plex Mono', monospace;
  font-weight: 600;
}

textarea,
[type="text"],
[type="email"] {
  width: 100%;
  font-size: 12px;
  font-weight: 300;
  border-radius: 0;
  border: none;
  border-bottom: 1px solid var(--black);
  margin-top: 0.75em;
  outline: none;
}

textarea:focus,
[type="text"]:focus,
[type="email"]:focus {
  border-bottom: 2px solid var(--black);
}

textarea {
  resize: vertical;
}

.button-row {
  justify-content: center;
}

.form-button {
  background-color: var(--white);
  color: var(--black);
  border-radius: 0;
  border: 1px solid var(--black);
  border-color: var(--black);
  font-size: 18px;
  transition: 0.3s;
}

.form-button:hover,
.form-button:active {
  background-color: var(--black);
  color: var(--white);
}


/* Properties for footer */

#footer {
  border-bottom: 0px;
  text-align: end;
  padding: 10px 40px 10px 40px;
}

#footer a {
  text-decoration: underline;
}


/* Media queries for adjusting columns and borders.
 * Collapsible navbar is also hidden by default.
 */

 /* Screen is at least medium */ 

@media (min-width: 768px) { 
  body {
    margin: 20px 35px 20px 35px;
  }

  .grid-container {
    border-top: 1px solid var(--black);
    border-right: 1px solid var(--black);
  }

  .grid-item {
    border-bottom: 1px solid var(--black);
    border-left: 1px solid var(--black);
  }

  #footer {
    border-bottom: 1px solid var(--black);;
  }
}

/* Screen is at least large */

@media (min-width: 1024px) {
  body {
    margin: 20px 50px 20px 50px;
  }
 
  #nav-static {
    display: block;
  }

  #nav-collapsible,
  #nav-button {
    display: none;
  }

  .grid-spacer {
    display: block;
    height: 60px;
    padding: 0px;
  }

  .bottomless  {
    border-bottom: none;
  }

  #project1,
  #project3 {
    border-right: 1px solid var(--black);
  }

  .grid-container {
    grid: 1fr / [content-left] 1fr 1fr [content-right];
  }

  .project-container {
    grid-template-columns: 1fr 1fr;
  }
}

/* Screen is at least very large */

@media (min-width: 1400px) {
  .project-container {
    grid-template-columns: 1fr 1fr 1fr;
  }

  #project1,
  #project2,
  #project3 {
    border: none;
  }

  #project1,
  #project2 {
    border-right: 1px solid var(--black);
  }
}