body {
  font-family: "Roboto Condensed", sans-serif;
  color: #cfd6ea;
  background-color: #0f0a0a;
}

header,
footer,
nav {
  text-align: center;
  color: #fed766;
  font-weight: bold;
}

h1,
h2,
h3 {
  font-family: "PT Serif", serif;
  text-align: center;
}

a {
  text-decoration: none;
  color: #fe4a49;
}

a:hover {
  color: #fed766;
}

figure {
  text-align: center;
}

figcaption {
  font-style: italic;
}

nav {
  text-align: center;
}

.portrait img {
  width: 100%;
  max-width: 600px;
}

table {
  margin-top: 20px;
  border-collapse: collapse;
  color: #fed766;
}

thead {
  background-color: #fe4a49;
}

th,
td {
  border: 1px solid black;
  padding: 0.2em 1em 0.2em 0.5em;
  text-align: left;
  vertical-align: middle;
}

.right {
  text-align: right;
}

tbody tr:nth-child(odd) td {
  background-color: #3c3c3b;
}

tbody tr:nth-child(even) td {
  background-color: #1c1c1c;
}

.center {
  margin-left: auto;
  margin-right: auto;
  text-align: center;
  list-style-position: inside;
}

.box {
  background-color: #cfd6ea;
  color: #0f0a0a;
  font-weight: 600;
  font-size: 110%;
  padding: 40px;
  border-radius: 10px;
  display: block;
  text-align: center;
  margin-bottom: 20px;
  margin-top: 20px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
}

.box-display {
  padding-top: 20px;
}

input[type="text"],
input[type="email"],
input[type="tel"],
select {
  width: 100%;
  margin: 2px -13px;
  padding: 15px 10px;
}

input[type="submit"] {
  width: 100%;
  background-color: #3c3c3b;
  color: #cfd6ea;
  border: none;
  border-radius: 5px;
  padding: 10px;
}

button {
  border: none;
  border-radius: 15px;
  padding: 10px;
  margin: 5px;
}

button:focus {
  background-color: #fed766;
}

.button-row {
  margin-top: 20px;
  position: relative;
}

.calculator {
  margin-left: auto;
  margin-right: auto;
  margin-top: 40px;
  margin-bottom: 40px;
  height: 820px;
  width: 500px;
  border-radius: 10px;
  background-color: #3c3c3b;
  display: flex;
  flex-wrap: wrap;
  padding: 15px;
}

.calculator-screen {
  height: 115px;
  width: 500px;
  background-color: #0f0a0a;
  border-radius: 10px;
  margin: 5px;
  text-align: center;
  line-height: 150px;
  font-size: 250%;
  font-weight: 600;
  color: #cfd6ea;
  overflow: hidden;
}

.calculator-screen-button {
  height: 115px;
  width: 240px;
  background-color: #1c1c1c;
  border-radius: 10px;
  text-align: center;
  line-height: 100px;
  font-size: 250%;
  font-weight: 600;
  color: #cfd6ea;
}

.calculator-button {
  height: 115px;
  width: 115px;
  background-color: #1c1c1c;
  border-radius: 10px;
  text-align: center;
  line-height: 100px;
  font-size: 250%;
  font-weight: 600;
  color: #cfd6ea;
}

.calculator-button:hover {
  background-color: #0f0a0a;
  color: #fed766;
}

.calculator-screen-button:hover {
  background-color: #0f0a0a;
  color: #fed766;
}

.prototype-box {
  max-width: 800px;
  padding-bottom: 40px;
  margin: auto;
}

.prototype-image {
  max-width: 800px;
  display: block;
  padding-top: 10px;
  margin-left: auto;
  margin-right: auto;
}

figure {
  margin: 0;
}

figcaption {
  color: #cfd6ea;
  text-align: center;
  padding: 5px;
}

.photo-list img {
  width: 32.5%;
  max-width: 200px;
  margin: auto;
}

.slideshow {
  display: flex;
  justify-content: center;
}

.slideshow ul {
  padding-left: 10px;
  padding-right: 10px;
}

.slideshow li {
  display: inline;
}

.main-photo {
  width: 75%;
}

.main-photo img {
  width: 100%;
}

.slideshow-side {
  display: flex;
  justify-content: center;
  align-items: center;
}

#caption {
  margin-top: 0;
  padding-top: 5px;
}

.margin {
  margin-left: 20%;
  margin-right: 20%;
}

img.mat {
  box-sizing: border-box;
  width: 100%;
  height: auto;
  display: block;
  padding: 10%;
  background-color: #a67b5b;
  background-image: url(cardboard.jpg);
  background-repeat: no-repeat;
  background-size: cover;
  border: 6px double #483c32;
  box-shadow: 0 0 0 50px rgba(244, 240, 236, 0.4) inset,
    0 0 0 11px rgb(180, 130, 90), 0 0 30px rgba(0, 0, 0, 0.8) inset;
  outline: 2px solid #333;
  outline-offset: 0px;
}