@import url("https://fonts.googleapis.com/css2?family=Montserrat:ital,wght@0,100..900;1,100..900&display=swap");
@import url("https://fonts.googleapis.com/css2?family=Roboto:ital,wght@0,100..900;1,100..900&display=swap");
@import url("https://cdn.jsdelivr.net/npm/hack-font@3.3.0/build/web/hack-subset.css");

:root {
  --hamburger-color: #000;

  /* Fonts */
  --font-heading: Montserrat, sans-serif;
  --font-body: Roboto, sans-serif;
  --font-mono: Hack, monospace;

  /* Spacing */
  --sp-1: 0.25rem;
  --sp-1\.5: 0.375rem;
  --sp-2: 0.5rem;
  --sp-3: 0.75rem;
  --sp-4: 1rem;
  --sp-5: 1.25rem;
  --sp-6: 1.5rem;
  --sp-8: 2rem;
  --sp-12: 3rem;

  --sp-52: 13rem;

  --sp-3xl: 48rem;
  --sp-4xl: 56rem;
  --sp-5xl: 64rem;

  /* Colors (from an old version of Tailwind CSS) */
  --bg-color: white;

  --gray-50: #f8fafc;
  --gray-100: #f1f5f9;
  --gray-200: #e2e8f0;
  --gray-300: #cbd5e1;
  --gray-400: #94a3b8;
  --gray-500: #64748b;
  --gray-600: #475569;
  --gray-700: #334155;
  --gray-800: #1e293b;
  --gray-900: #0f172a;
  --gray-950: #020617;

  --sky-50: #f0f9ff;
  --sky-100: #e0f2fe;
  --sky-200: #bae6fd;
  --sky-300: #7dd3fc;
  --sky-400: #38bdf8;
  --sky-500: #0ea5e9;
  --sky-600: #0284c7;
  --sky-700: #0369a1;
  --sky-800: #075985;
  --sky-900: #0c4a6e;
  --sky-950: #082f49;

  --blue-50: #eff6ff;
  --blue-100: #dbeafe;
  --blue-200: #bfdbfe;
  --blue-300: #93c5fd;
  --blue-400: #60a5fa;
  --blue-500: #3b82f6;
  --blue-600: #2563eb;
  --blue-700: #1d4ed8;
  --blue-800: #1e40af;
  --blue-900: #1e3a8a;
  --blue-950: #172554;

  --purple-50: #faf5ff;
  --purple-100: #f3e8ff;
  --purple-200: #e9d5ff;
  --purple-300: #d8b4fe;
  --purple-400: #c084fc;
  --purple-500: #a855f7;
  --purple-600: #9333ea;
  --purple-700: #7e22c3;
  --purple-800: #6b21a8;
  --purple-900: #581c87;
  --purple-950: #3b0764;
}

*,
::after,
::before {
  box-sizing: border-box;
  margin: 0;
  border-width: 0;
  padding: 0;
}

/* Tag Styles */

html {
  line-height: 1.5;
}

body {
  background-color: white;
  line-height: inherit;
  font-family: var(--font-body);
}

h1,
h2,
h3,
h4,
h5,
h6 {
  font-weight: inherit;
  font-size: inherit;
  font-family: var(--font-heading);
}

a {
  color: var(--blue-600);
  text-decoration: inherit;
}

a:hover {
  color: var(--blue-800);
}

a:visited {
  color: var(--purple-600);
}

ol,
ul,
menu {
  list-style: none;
}

button {
  background-image: none;
  background-color: transparent;
  color: inherit;
  font-size: 100%;
  line-height: inherit;
  font-family: inherit;
  text-transform: none;
}

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

footer {
  margin-top: var(--sp-8);
  margin-bottom: var(--sp-8);
  background-color: var(--bg-color);
  color: var(--gray-400);
  text-align: center;
}

/* Utility Classes */

.pl-4 {
  padding-left: var(--sp-4);
}

.py-1 {
  padding-block: var(--sp-1);
}

.mt-8 {
  margin-top: var(--sp-8);
}

.bg {
  background-color: var(--bg-color);
}

.bg-gray {
  background-color: var(--gray-100);
}

/* Container class from Tailwind CSS */

.container {
  width: 100%;
}

@media (min-width: 1024px) {
  .container {
    max-width: 1024px;
  }
}

@media (min-width: 1280px) {
  .container {
    max-width: 1280px;
  }
}

@media (min-width: 1536px) {
  .container {
    max-width: 1536px;
  }
}

/* Page Styles */

.notfound {
  margin: var(--sp-12);
  text-align: center;
}

#header {
  top: 0px;
  z-index: 10;
  margin-right: 0;
  margin-left: 0;
  box-shadow: 0px 3px 7px -1px rgba(0, 0, 0, 0.35);
  background-color: var(--bg-color);
  width: 100%;
  font-family: var(--font-heading);
}

.nav-container {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  margin-top: 0;
  margin-inline: auto;
  padding: var(--sp-2) var(--sp-4);
  width: 100%;
  max-width: var(--sp-5xl);
  height: var(--sp-12);
}

a.nav-title {
  color: var(--gray-900);
  font-weight: 700;
  font-size: 1rem;
  line-height: 1.5rem;
  text-decoration: none;
}

a.nav-title:hover {
  text-decoration: none;
}

#nav-menu-toggle {
  display: none;
}

.nav-menu-button-container {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  cursor: pointer;
  width: var(--sp-8);
  height: 100%;
}

.nav-menu-button,
.nav-menu-button::before,
.nav-menu-button::after {
  display: block;
  position: absolute;
  border-radius: 2px;
  background-color: var(--hamburger-color);
  width: var(--sp-8);
  height: var(--sp-1);
}

.nav-menu-button::before {
  margin-top: calc(var(--sp-2) * -1);
  content: "";
}

.nav-menu-button::after {
  margin-top: var(--sp-2);
  content: "";
}

.nav-menu {
  display: flex;
  position: absolute;
  top: 0;
  left: 0;
  flex: 1 1 0%;
  flex-direction: column;
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
  transform: scaleY(1);
  transform-origin: top;
  transition: transform 0.4s ease-out;
  margin-top: var(--sp-12);
  background-color: var(--gray-200);
  width: 100%;
  list-style-type: none;
}

#nav-menu-toggle:not(:checked) ~ .nav-menu {
  transform: scaleY(0);
  transform-origin: top;
  transition: transform 0.2s ease-in;
}

.nav-menu > li {
  display: flex;
  justify-content: right;
  margin: 0;
  padding: var(--sp-2) var(--sp-4);
  width: 100%;
  max-width: var(--sp-5xl);
  font-size: 0.875rem;
  line-height: 1.25rem;
}

a.nav-menu-item-current {
  display: inline-block;
  color: var(--sky-600);
  font-weight: 700;
  text-decoration-line: none;
}

a.nav-menu-item {
  display: inline-block;
  color: var(--gray-600);
  text-decoration-line: none;
}

a.nav-menu-item:hover {
  color: var(--gray-900);
  text-decoration-line: underline;
}

.main-section {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  margin-inline: auto;
  padding: var(--sp-8) var(--sp-3);
  max-width: var(--sp-5xl);
}

.info {
  flex-basis: 100%;
}

.info-image {
  display: block;
  margin-inline: auto;
  border-radius: 50%;
  width: var(--sp-52);
  height: var(--sp-52);
  object-position: center;
}

.info-name {
  padding-block: var(--sp-1);
  color: var(--gray-900);
  font-weight: 700;
  font-size: 1.875rem;
  line-height: 2.25rem;
  text-align: center;
  word-break: normal;
  overflow-wrap: normal;
}

.info-title {
  padding-block: var(--sp-1);
  color: var(--gray-500);
  font-weight: 700;
  font-size: 1.125rem;
  line-height: 1.75rem;
  text-align: center;
  word-break: normal;
  overflow-wrap: normal;
}

.info-affiliation {
  padding-block: var(--sp-1);
  color: var(--blue-400);
  font-weight: 700;
  font-size: 1.125rem;
  line-height: 1.75rem;
  text-align: center;
  word-break: normal;
  overflow-wrap: normal;
}

.info-affiliation:hover {
  color: var(--blue-800);
}

.info-icon-row {
  display: flex;
  flex-direction: row;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--sp-2);
  padding-block: var(--sp-8);
}

.info-icons {
  display: inline;
  flex-shrink: 0;
  width: var(--sp-8);
  height: var(--sp-8);
  stroke: var(--blue-600);
  fill: var(--blue-600);
}

.info-icons:hover {
  stroke: var(--blue-800);
  fill: var(--blue-800);
}

.info-service {
  padding-block: var(--sp-1);
  color: var(--gray-600);
  font-size: 1.125rem;
  line-height: 1.75rem;
  text-align: center;
  word-break: normal;
  overflow-wrap: normal;
}

.biography {
  flex-basis: 100%;
  margin-top: var(--sp-4);
}

.biography-title {
  padding-bottom: var(--sp-4);
  color: var(--gray-800);
  font-size: 1.875rem;
  line-height: 2.25rem;
  text-align: center;
  word-break: normal;
  overflow-wrap: normal;
}

.biography-info {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  margin-inline: auto;
  padding-block: var(--sp-4);
  max-width: var(--sp-5xl);
}

.biography-list {
  flex-basis: 100%;
}

.biography-list ~ .biography-list {
  padding-top: var(--sp-4);
}

.biography-list-title {
  padding-block: var(--sp-1);
  color: var(--gray-700);
  font-weight: 700;
  font-size: 1.5rem;
  line-height: 2rem;
  word-break: normal;
  overflow-wrap: normal;
}

.biography-academic-item {
  display: flex;
  flex-direction: row;
  flex-wrap: nowrap;
  gap: var(--sp-2);
  padding-block: var(--sp-1);
}

.biography-interests {
  padding-left: var(--sp-5);
  list-style-type: disc;
}

.biography-institution {
  color: var(--gray-400);
}

.biography-academic-icon {
  display: inline;
  width: var(--sp-6);
  height: var(--sp-6);
}

.close-x {
  position: relative;
  cursor: pointer;
  margin-block: var(--sp-1);
  width: var(--sp-4);
  height: var(--sp-4);
}

.close-x::before,
.close-x::after {
  position: absolute;
  top: 50%;
  left: 50%;
  background-color: var(--gray-800);
  width: 100%;
  height: 2px;
  content: "";
}

.close-x::before {
  transform: translate(-50%, -50%) rotate(45deg);
}

.close-x::after {
  transform: translate(-50%, -50%) rotate(-45deg);
}

.close-x:hover::before,
.close-x:hover::after {
  background-color: var(--blue-600);
}

.subpage {
  display: flex;
  flex-direction: column;
  margin-inline: auto;
  padding: var(--sp-4);
  max-width: var(--sp-5xl);
}

.subpage-title {
  flex-grow: 1;
  padding-top: var(--sp-4);
  padding-bottom: var(--sp-4);
}

.subpage-content {
  flex-grow: 1;
}

.section-content {
  margin-inline: auto;
  padding-inline: var(--sp-4);
  padding-bottom: var(--sp-8);
  max-width: var(--sp-5xl);
}

.contact-line {
  display: flex;
  flex-direction: row;
  flex-wrap: nowrap;
  font-size: 1.125rem;
  line-height: 1.75rem;
}

.contact-line:not(:last-child) {
  padding-bottom: var(--sp-4);
}

.contact-icons {
  display: inline;
  flex-shrink: 0;
  width: var(--sp-5);
  height: var(--sp-5);
}

.publication-frame {
  box-shadow: 0px 10px 15px -3px rgba(0, 0, 0, 0.35);
  border-radius: var(--sp-2);
  background-color: var(--bg-color);
  padding: var(--sp-4);
}

.publication-frame:hover {
  box-shadow: 0px 20px 25px -5px rgba(0, 0, 0, 0.35);
}

.publication-frame + .publication-frame {
  margin-top: var(--sp-4);
}

.publication-info {
  color: var(--gray-500);
  font-size: 0.75rem;
  line-height: 1rem;
}

.publication-title {
  padding-block: var(--sp-1);
  font-weight: 700;
}

.publication-description {
  padding-block: var(--sp-1);
  font-size: 0.75rem;
  line-height: 1rem;
}

.publication-link {
  display: inline-flex;
  justify-content: center;
  align-items: center;
  margin-top: var(--sp-2);
  margin-right: var(--sp-2);
  border: 1px solid var(--blue-600);
  border-radius: var(--sp-1\.5);
  padding: var(--sp-1) var(--sp-2);
  font-weight: 700;
  font-size: 0.75rem;
  line-height: 1rem;
}

.citation-dialog {
  animation: fadeout 0.2s ease-in;
  transition:
    display 0.2s allow-discrete,
    overlay 0.2s allow-discrete;
  margin: auto;
  border-radius: 5px;
  padding: var(--sp-4);
  width: var(--sp-3xl);
  max-width: 95vw;
}

.citation-dialog[open] {
  animation: fadein 0.5s ease-out;
}

@keyframes fadein {
  from {
    transform: translateY(calc(var(--sp-12) * -1));
    opacity: 0;
  }
  to {
    transform: translateY(0);
    opacity: 1;
  }
}

@keyframes fadeout {
  from {
    transform: translateY(0);
    opacity: 1;
  }
  to {
    transform: translateY(calc(var(--sp-12) * -1));
    opacity: 0;
  }
}

.citation-header {
  display: flex;
  flex-direction: row;
  justify-content: space-between;
  gap: var(--sp-4);
  margin-bottom: var(--sp-4);
}

.citation-label {
  display: flex;
  flex-direction: row;
  justify-content: space-between;
}

.copy-icon {
  display: inline;
  cursor: pointer;
  width: var(--sp-4);
  height: var(--sp-4);
}

.copy-icon:hover {
  fill: var(--blue-600);
}

.copy-icon:active {
  fill: var(--blue-200);
  transform: translate(0, var(--sp-1));
}

.citation-block {
  border-radius: 5px;
  background-color: var(--gray-200);
  padding: var(--sp-2);
  overflow-x: auto;
}

.citation-bibtex {
  font-size: 0.75rem;
  line-height: 0.75rem;
  font-family: var(--font-mono);
}

@media (min-width: 1024px) {
  .nav-container {
    flex-wrap: nowrap;
  }

  .nav-menu-button-container {
    display: none;
  }

  .nav-menu {
    position: relative;
    top: auto;
    left: auto;
    flex-direction: row;
    justify-content: flex-end;
    transition: none;
    margin-top: 0;
    background-color: transparent;
    width: auto;
  }

  #nav-menu-toggle:not(:checked) ~ .nav-menu {
    transform: scaleY(1);
    transition: none;
  }

  .nav-menu > li {
    display: block;
    padding: 0;
    width: auto;
  }

  .nav-menu > li:not(:last-child) {
    padding-right: var(--sp-4);
  }

  .main-section {
    flex-direction: row;
    flex-wrap: nowrap;
  }

  .info {
    flex-basis: 35%;
    padding-inline: var(--sp-4);
  }

  .biography {
    flex-basis: 65%;
    margin-top: 0;
  }

  .biography-title {
    font-size: 2.5rem;
    line-height: 1;
    text-align: left;
  }

  .biography-info {
    flex-direction: row;
    flex-wrap: nowrap;
    padding-block: var(--sp-8);
  }

  .biography-list {
    flex-basis: 45%;
  }

  .biography-list ~ .biography-list {
    flex-basis: 55%;
    padding-top: 0;
  }

  .subpage {
    flex-direction: row;
  }

  .subpage-title {
    flex-basis: 35%;
    padding-block: 0;
  }

  .subpage-content {
    flex-basis: 65%;
  }
}