:root {
  --color-primary:#673AB7;
  --color-primary-light:#7E57C2;
  --color-primary-lightest:#bb86fc;
  --color-grey-dark-2: #212121; }

* {
  margin: 0;
  padding: 0; }

html {
  box-sizing: border-box;
  font-size: 62.5%;
  letter-spacing: .005rem; }

body {
  font-family: 'Open Sans', sans-serif;
  font-weight: 400;
  line-height: 1.67;
  max-width: 100%;
  overflow-x: hidden; }

h1 {
  font-weight: 700;
  font-size: 1.8rem;
  letter-spacing: .1rem;
  text-transform: uppercase;
  color: var(--color-primary); }

h2 {
  font-weight: 400;
  font-size: 1.7rem; }

ul {
  list-style: none; }

p {
  font-size: 1.4rem;
  padding-bottom: 4rem;
  margin-top: 0;
  padding-top: 0; }

.papers p {
  color: var(--color-grey-dark-2); }


span {
  font-size: 1.4rem;
  padding: .2rem 1.2rem .4rem 1.2rem;
  color: white;
  background-color: var(--color-primary-light);
  border-radius: 10rem;
  margin-right: .5rem;
  letter-spacing: .1rem;
  font-style: italic; }

b {
  color: black; }

.bottom-margin-small {
  margin-top: 2rem; }

.bottom-margin-medium {
  margin-top: 6rem; }

.bottom-margin-md {
  margin-top: 4rem; }

.margin-right-small {
  margin-right: 2rem; }

.citation {
  font-size: 1.4rem;
  color: #757575; }

h4 {
  font-weight: 700;
  font-size: 1.8rem;
  padding: 1rem 0rem .5rem 0rem; }

.logo {
  font-size: 2.4rem;
  font-weight: 700; }
  @media only screen and (max-width: 75em) {
    .logo {
      margin-left: 0rem; } }
  @media only screen and (max-width: 68.75em) {
    .logo {
      margin-left: 0; } }

.navigation {
  margin: 0;
  padding: 0; }
  .navigation__list {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 100%; }
    @media only screen and (max-width: 31.25em) {
      .navigation__list {
        flex-direction: column;
        margin-top: 2rem;
        margin-bottom: 2rem; } }
  .navigation__item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    list-style: none; }
    @media only screen and (max-width: 31.25em) {
      .navigation__item {
        margin: 0;
        padding: 0; } }
  .navigation__link {
    text-decoration: none;
    color: black;
    padding: 2rem;
    display: block; }
    @media only screen and (max-width: 31.25em) {
      .navigation__link {
        margin: 0rem;
        padding: 0rem; } }
    .navigation__link--active {
      padding: 2rem;
      text-decoration: none;
      background: var(--color-primary);
      color:white }
      @media only screen and (max-width: 31.25em) {
        .navigation__link--active {
          margin: 0rem;
          padding: 0rem; } }
    .navigation__link--active:hover, .navigation__link:hover, .navigation__link:active {
      text-decoration: none;
      color: white;
      background: var(--color-primary); }
      @media only screen and (max-width: 31.25em) {
        .navigation__link--active:hover, .navigation__link:hover, .navigation__link:active {
          flex-direction: column;
          margin-top: 2rem;
          margin-bottom: 2rem; } }
      @media only screen and (max-width: 31.25em) {
        .navigation__link--active:hover, .navigation__link:hover, .navigation__link:active {
          margin: 0rem;
          padding: 0rem 6rem; } }

.about {
  display: flex;
  flex-direction: column;
  padding-left: 4rem;
  font-size: 1.1rem; }
  @media only screen and (max-width: 37.5em) {
    .about {
      padding-top: 2rem;
      padding-left: 0; } }
  @media only screen and (max-width: 31.25em) {
    .about {
      flex-wrap: wrap; } }

.photo img {
  border-radius: 50%; }

@media only screen and (max-width: 75em) {
  .photo {
    margin-left: 0rem; } }

@media only screen and (max-width: 37.5em) {
  .photo {
    padding-left: 0;
    margin-left: 0; } }

.section-about a, .section-about a:visited {
  color: var(--color-primary);
  text-decoration: none; }

.section-about a:hover {
  text-decoration: underline; }

.papers a, .papers a:visited {
  color: var(--color-primary);
  text-decoration: none; }

.papers a:hover {
  text-decoration: underline;
  color: var(--color-primary); }

.btn {
  margin-right: 1rem; }
  .btn, .btn:link, .btn:visited {
    text-transform: uppercase;
    color: var(--color-primary);
    text-decoration: none;
    letter-spacing: 0.15rem;
    font-weight: 700;
    padding: 1.2rem 2.5rem;
    display: inline-block;
    border-radius: .4rem;
    border: 1px solid var(--color-primary);
    cursor: pointer;
    background-color: white;
    outline: none; }
  .btn:hover {
    background-color: var(--color-primary);
    color: white; }
  .btn:active, .btn:focus {
    outline: none; }
  @media only screen and (max-width: 31.25em) {
    .btn {
      margin-right: 1rem;
      padding: 1rem; } }

.papers:not(last-child) {
  margin-top: 0rem; }

.footer {
  text-align: center; }
  .footer__link {
    text-decoration: none;
    color: var(--color-primary); }

.row--right {
  margin-left: 10rem; }
  @media only screen and (max-width: 37.5em) {
    .row--right {
      margin-left: 0rem; } }

.row a, .row a:visited {
  text-decoration: none;
  color: var(--color-primary); }
  .row a:hover, .row a:visited:hover {
    text-decoration: underline; }

@media only screen and (max-width: 31.25em) {
  .publications {
    margin-top: 15rem; } }

.talks {
  color: black;
  font-size: 1.5rem;
  padding-bottom: 4rem; }

.caption {
  font-style: italic;
  color: var(--color-grey-dark-2);
  font-size: 1.4rem;
  margin-left: .4rem; }

.awards {
  font-size: 1.4rem;
  padding-bottom: 0.4rem; }

.list {
  font-size: 1.6rem;
  padding-bottom: 0.4rem; }

.academic {
  color: black;
  font-size: 1.5rem;
  padding-bottom: 2rem; }

.book-image {
  padding: 1rem 0rem 1rem 0rem; }

.container {
  max-width: 100rem;
  margin: 6rem auto;
  min-height: 50rem; }
  @media only screen and (max-width: 75em) {
    .container {
      margin: 3rem auto;
      max-width: 90%;
      width: 100%;
      overflow: hidden; } }

.header {
  font-size: 1.6rem;
  height: 7rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  clear: both; }
  @media only screen and (max-width: 68.75em) {
    .header {
      flex-direction: column; } }

section {
  margin: 5rem auto; }
  @media only screen and (max-width: 68.75em) {
    section {
      margin: 5rem 2rem; } }

.section-about {
  display: flex;
  justify-content: space-between;
  align-items: top; }
  @media only screen and (max-width: 37.5em) {
    .section-about {
      flex-direction: column;
      padding-top: 2rem;
      justify-content: space-between;
      align-items: center; } }
  @media only screen and (max-width: 31.25em) {
    .section-about {
      padding-top: 10rem; } }

.button {
  padding: 2rem 0rem;
  display: flex;
  flex: wrap; }
  @media only screen and (max-width: 37.5em) {
    .button {
      padding: 2rem 0rem; } }

.row {
  display: flex;
  align-items: top; }
  @media only screen and (max-width: 37.5em) {
    .row {
      flex-direction: column; } }

@media only screen and (max-width: 37.5em) {
  .grid {
    padding-top: 2rem; } }

.project--row {
  display: flex;
  align-items: top; }
  @media only screen and (max-width: 68.75em) {
    .project--row {
      margin-top: 4rem;
      flex-direction: column-reverse; } }
  @media only screen and (max-width: 56.25em) {
    .project--row {
      margin-top: 6rem;
      flex-direction: column-reverse; } }
  @media only screen and (max-width: 37.5em) {
    .project--row {
      margin-top: 6rem;
      flex-direction: column-reverse; } }
  @media only screen and (max-width: 31.25em) {
    .project--row {
      margin-top: 14rem;
      flex-direction: column-reverse; } }

@media only screen and (max-width: 68.75em) {
  .row--1 {
    padding-left: 0rem;
    margin-bottom: 2rem; } }

@media only screen and (max-width: 56.25em) {
  .row--1 {
    padding-left: 0rem; } }

.row--2 {
  margin-right: 2rem; }
  @media only screen and (max-width: 56.25em) {
    .row--2 {
      margin-right: 0rem; } }
  @media only screen and (max-width: 37.5em) {
    .row--2 {
      margin-right: 0rem; } }

.project--row {
  font-size: 1.4rem; }

.row--1 li {
  display: block; }
  .row--1 li:focus, .row--1 li:active {
    outline: none; }

.row--1 a:focus, .row--1 a:active {
  outline: none; }

.tab__link {
  text-decoration: none;
  color: black;
  padding: 1rem;
  display: block; }
  @media only screen and (max-width: 31.25em) {
    .tab__link {
      margin: 0rem;
      padding: 0rem; } }
  .tab__link:active, .tab__link:focus {
    text-decoration: none;
    color: white;
    background-color: var(--color-grey-dark-2); }
    @media only screen and (max-width: 31.25em) {
      .tab__link:active, .tab__link:focus {
        flex-direction: column;
        margin-top: 2rem;
        margin-bottom: 2rem; } }
    @media only screen and (max-width: 31.25em) {
      .tab__link:active, .tab__link:focus {
        margin: 0rem;
        padding: 0rem; } }
  .tab__link:hover {
    text-decoration: none;
    color: white;
    background-color: var(--color-grey-dark-2); }
    @media only screen and (max-width: 37.5em) {
      .tab__link:hover {
        flex-direction: column;
        margin-top: 2rem;
        margin-bottom: 2rem;
        padding: 0rem; } }
    @media only screen and (max-width: 31.25em) {
      .tab__link:hover {
        margin: 0rem;
        padding: 0rem; } }

.active {
  color: white;
  background-color: var(--color-grey-dark-2); }

.article a {
  text-decoration: none;
  color: var(--color-primary); }

.article p {
  font-size: 1.5rem; }

.title {
  font-weight: 700;
  font-size: 2rem;
  margin-bottom: 2rem; }

.subtitle {
  font-style: italic;
  font-weight: 700;
  font-size: 1.6rem;
  padding: .5rem 1rem .5rem 1rem;
  margin-bottom: 1rem;
  background-color: #e4d6f6; }

.p-pro {
  font-size: 1.5rem;
  padding-bottom: .5rem; }

.quote {
  font-size: 1.5rem;
  color: #7e7e8e;
  padding-bottom: 3rem;
  margin-top: -.4rem; }

.img-pro {
  margin-bottom: 3rem; }