@import url("https://fonts.googleapis.com/css2?family=Cal+Sans&display=swap");
@import url("https://fonts.googleapis.com/css2?family=Montserrat:ital,wght@0,100..900;1,100..900&display=swap");

/* ??? Layout */
:root {
  --margin-extra-small: clamp(0.25rem, calc(0.25vw + 0.5rem), 0.5rem);
  --margin-small: clamp(0.5rem, calc(0.5vw + 0.5rem), 0.7rem);
  --margin-medium: clamp(1rem, calc(1vw + 0.5rem), 2rem);
  --margin-large: clamp(1rem, calc(1vw + 2rem), 3rem);
  --margin-extra-large: clamp(3rem, calc(5vw + 2rem), 5rem);
}

:root {
  font-size: 16px;
  --font-extra-large: clamp(2.5rem, calc(4vw + 1rem), 3rem);
  --font-large: clamp(1.75rem, calc(2vw + 1rem), 2rem);
  --font-medium: clamp(1.5rem, calc(0.5vw + 2rem), 1.75rem);
  --font-small: clamp(1.25rem, calc(0.5vw + 1rem), 1.5rem);
  --font-extra-small: clamp(1rem, calc(0.5vw + 0.5rem), 1.25rem);
}

:root {
  --color-primary: #6e2fe2;
  --color-secondary: #e2d32f;
  --color-tertiary: #0a0b4e;
  --color-fourth: #00d5b5;
  --color-background: #ffffff;
  --color-text: #ffffff;
  --color-secondary-text: #000000;
  --color-accent: #41e22f;
  --color-background-dim: #eeeeee;
}

body,
html {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  scroll-behavior: smooth;
}

*,
*:before,
*:after {
  box-sizing: inherit;
}

.header {
  position: absolute;
  top: 0;
  width: 100%;
  z-index: 10;

  display: flex;
  flex-direction: row;
  flex-wrap: wrap;
  gap: var(--margin-small);
  justify-content: space-between;
  align-items: center;

  padding: var(--margin-large);
}

.page-title {
  display: flex;
  flex-grow: 0;
  gap: var(--margin-small);
}

.page-title-image-container {
  display: flex;
  align-items: center;
  justify-content: center;
}

.page-title-text-container {
  display: inline-flex;
  flex-direction: column;
  justify-content: center;
  align-self: center;
  gap: var(--margin-small);
}

.page-title-text-alt {
  display: none;
}

.menu {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--margin-medium);
}

.menu a:hover {
  cursor: pointer;
}

.hero-section {
  width: 100%;
  height: 130dvh;

  background-image: url("../img/hero_image.png");
  background-position: 50% 50%;
}

.hero-section::after {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  height: 130vh;
  width: 100%;
  background: rgba(0, 0, 0, 0.5);
}

.hero-container {
  display: flex;
  flex-direction: column;
  gap: 0;

  position: relative;
  top: 40dvh;
  z-index: 2;

  margin: 0 var(--margin-large);

  max-width: 800px;
}

.hero-title-text {
  margin: 0;
}

.all-container {
  display: grid;
  justify-content: center;
}

.article-section {
  top: -30dvh;
  scroll-margin: 7.5dvh;

  position: relative;
  display: flex;
  flex-direction: row;
  flex-wrap: wrap;

  justify-content: center;
  max-width: 1920px;
  justify-self: center;

  padding: var(--margin-large);
  margin: var(--margin-extra-large) var(--margin-large);
  gap: var(--margin-medium);

  box-shadow: rgba(96, 31, 175, 0.356) 0px 0px 50px;
}

.article-container {
  display: flex;
  flex-direction: column;
  gap: var(--margin-extra-small);
  max-width: 800px;
}

.article-title-text,
.article-section-text {
  margin: 0;
}

.article-card {
  display: flex;
  flex: 1 1 300px;

  flex-direction: column;
  align-items: center;
  justify-content: center;

  gap: var(--margin-extra-small);
}

.article-image {
  flex-grow: 1;
  flex-shrink: 1;
}

.article-card-text {
  margin: var(--margin-extra-small) 0;
  text-align: left;
}

.article-card-buttons {
  display: flex;
  flex-direction: row;
  flex-wrap: wrap;
  gap: var(--margin-extra-small);
  justify-content: space-between;
  align-items: center;
}

.article-button,
.download-button,
.code-button,
.other-button,
.citation-download-button {
  padding: var(--margin-extra-small);
  text-align: center;
  flex-grow: 1;
}

.research-section {
  position: relative;
  top: -30dvh;

  max-width: 1920px;
  justify-self: center;

  padding: var(--margin-large);
  display: flex;
  flex-wrap: wrap;
  flex-direction: column;
  gap: var(--margin-large);
  align-items: center;
  justify-content: center;
}

.research-grid {
  display: flex;
  flex-wrap: wrap;
  gap: var(--margin-medium);
  justify-content: center;
}

.research-card {
  flex: 0 1 400px;
  padding: var(--margin-medium);
  background-color: var(--color-background);
  box-shadow: rgba(96, 31, 175, 0.356) 0px 4px 10px;

  justify-content: space-between;

  display: flex;
  flex-direction: column;
  gap: var(--margin-extra-small);
  text-decoration: none;
  transition: transform 0.3s ease;
}

.research-card:hover {
  transform: translateY(-0.5%);
  transition: transform 0.3s ease;
}

.citation-section {
  position: relative;
  top: -30dvh;

  max-width: 1920px;
  justify-self: center;

  padding: var(--margin-large);
  display: flex;
  flex-direction: column;
  align-items: center;
}

.citation-container {
  border-radius: var(--margin-medium);
  max-width: 1200px;

  display: flex;
  flex-direction: column;
  gap: var(--margin-extra-small);
  padding: var(--margin-large);
  align-items: center;
}

.citation-container-sub {
  display: flex;
  flex: 1 1 150px;
  flex-direction: row;
  flex-wrap: wrap;
  gap: 0 var(--margin-medium);
  align-items: center;
}

.citation-text {
  max-width: 1000px;
}

.citation-download-container {
  display: flex;
  flex-direction: row;
  flex-wrap: wrap;
  gap: var(--margin-small) var(--margin-medium);
  align-items: center;
  margin-top: var(--margin-small);
}

.citation-download-button {
  min-width: 200px;
  background-color: var(--color-background);
  color: var(--color-secondary-text);
  border-radius: 15px;
}

.citation-download-button:hover {
  background-color: var(--color-secondary);
  transition: background-color 0.3s ease;
  cursor: pointer;
}

.footer {
  display: grid;
  justify-content: center;
}

.footnotes-container {
  display: flex;
  flex-direction: column;
  gap: var(--margin-small);
}

.contact-section {
  top: -30dvh;
  padding: 0 var(--margin-large);
}

.footnotes-container {
  max-width: 1920px;
  justify-self: center;
}

.license {
  display: flex;
  flex-direction: row;
  flex-wrap: wrap;
  gap: var(--margin-small);
  justify-items: space-between;
  align-items: center;
}

.grant {
  display: flex;
  flex-direction: row;
  flex-wrap: wrap;
  gap: var(--margin-small);
  justify-items: center;
  align-items: space-between;
}

.grant-text {
  flex: 1 1 300px;
}

/* ??? Layout for phone compatibility */
@media screen and (max-width: 1100px) {
  .header {
    justify-content: center;
    gap: var(--margin-medium);
  }
}

@media screen and (max-width: 550px) {
  .header {
    padding: var(--margin-small);
  }

  .page-title-text,
  .page-subtitle-text,
  .only-pc {
    display: none;
  }

  .hero-section {
    height: 100vh;
  }

  .page-title-text-alt {
    display: inline-block;
  }

  .menu {
    flex-wrap: wrap;
    gap: var(--margin-small);
    justify-content: center;
  }

  .article-section {
    top: 0;
    scroll-margin: 0;
    margin: 0;
    min-height: 100dvh;
  }

  .research-section {
    top: 0;
  }

  .citation-section {
    top: 0;
    padding: var(--margin-extra-small);
  }

  .citation-container {
    padding: var(--margin-medium);
  }

  .citation-download-container {
    flex-direction: column;
    width: 100%;
    align-items: center;
  }

  .article-card-text {
    text-align: center;
  }

  .contact-section {
    top: 0;
    padding: var(--margin-small);
  }
}

@media screen and (max-height: 500px) {
  .header {
    padding: var(--margin-small);
  }

  .page-title-text,
  .page-subtitle-text,
  .only-pc {
    display: none;
  }

  .page-title-text-alt {
    display: inline-block;
  }
}

/* ??? TYPOGRAPHY */
h1,
h2 {
  font-weight: 500;
}

abbr[title] {
  border-bottom: none !important;
  cursor: inherit !important;
  text-decoration: none !important;
}

address {
  font-style: normal;
}

a {
  all: unset;
}

html {
  font-family: "Montserrat", sans-serif;
}

.page-title-text {
  font-family: "Cal Sans", sans-serif;
  font-size: var(--font-medium);
  color: var(--color-text);
  line-height: 0.8;
}

.page-subtitle-text {
  font-family: "Montserrat", sans-serif;
  font-size: var(--font-extra-small);
  color: var(--color-text);
  font-weight: 400;
}

nav a {
  text-decoration: none;
  font-size: var(--font-small);
  font-weight: 400;
}

nav a:hover {
  text-decoration: underline;
  color: var(--color-secondary);
}

.download-button {
  font-weight: 700;
  color: var(--color-secondary-text);
}

.hero-title-text {
  font-family: "Cal Sans", sans-serif;
  font-size: var(--font-extra-large);
  color: var(--color-text);
  line-height: calc(var(--font-extra-large) * 1.2);
  text-decoration: none;
}

.hero-subtitle-text {
  font-family: "Montserrat", sans-serif;
  font-size: var(--font-small);
  color: var(--color-secondary);
  font-weight: 700;
}

.hero-arrow {
  font-family: "Cal Sans", sans-serif;
  font-size: var(--font-extra-large);
  color: var(--color-secondary);
  text-decoration: none;
}

.hero-arrow:hover {
  color: var(--color-text);
}

.article-title-text {
  font-family: "Cal Sans", sans-serif;
  font-size: var(--font-extra-large);
  color: var(--color-secondary-text);
}

.article-section-text {
  color: var(--color-secondary-text);
  font-family: "Montserrat", sans-serif;
  font-size: var(--font-small);
  line-height: 1.5;
}

.article-card-text {
  color: var(--color-secondary-text);
  font-family: "Montserrat", sans-serif;
  font-size: var(--font-small);
  line-height: 1.4;
  font-weight: 700;
}

.article-button,
.code-button,
.download-button,
.other-button {
  font-size: var(--font-extra-small);
  text-decoration: none;
  font-weight: 700;
  cursor: pointer;
}

.article-button {
  color: var(--color-secondary-text);
}

.article-button:hover {
  background-color: var(--color-fourth);
  transition: background-color 0.3s ease;
}

.code-button {
  color: var(--color-text);
}

.code-button:hover {
  background-color: var(--color-primary);
  transition: background-color 0.3s ease;
}

.other-button {
  color: var(--color-secondary-text);
  background-color: var(--color-fourth);
  text-decoration: none;
}

.other-button:hover {
  background-color: var(--color-accent);
  color: var(--color-secondary-text);
  transition: background-color 0.3s ease;
}

.citation-title-text {
  font-family: "Cal Sans", sans-serif;
  font-size: var(--font-extra-large);
  color: var(--color-tertiary);
}

.citation-style-name-text {
  font-family: "Cal Sans", sans-serif;
  font-size: var(--font-small);
  color: var(--color-text);
  font-weight: 500;
  margin: 0;
}

.citation-text {
  font-family: "Montserrat", sans-serif;
  font-size: var(--font-small);
  color: var(--color-text);
  line-height: 1.5;
  margin: 0;
}

.citation-download-button {
  font-family: "Montserrat", sans-serif;
  font-size: var(--font-extra-small);
  color: var(--color-secondary-text);
  text-decoration: none;
  font-weight: 700;
}

.research-title-text {
  font-family: "Cal Sans", sans-serif;
  font-size: var(--font-extra-large);
  text-align: center;
  margin: 0;
  color: var(--color-primary);
}

.research-card-title-text {
  font-family: "Montserrat", sans-serif;
  font-size: var(--font-small);
  font-weight: 700;
  margin: 0;
  color: var(--color-secondary-text);
}

.research-card-category-text {
  font-family: "Cal Sans", sans-serif;
  font-size: var(--font-extra-small);
  color: var(--color-primary);
}

.contact-title-text {
  font-family: "Cal Sans", sans-serif;
  font-size: var(--font-large);
  color: var(--color-secondary);
  margin: 0;
}

.contact-text {
  font-family: "Montserrat", sans-serif;
  font-size: var(--font-extra-small);
  color: var(--color-text);
}

.contact-text a {
  text-decoration: none;
  color: var(--color-secondary);
  font-weight: 700;
}

.copyright-text {
  font-family: "Montserrat", sans-serif;
  font-size: var(--font-extra-small);
  color: var(--color-secondary);
  text-align: center;
  font-style: italic;
  margin: 0;
}

.grant-text,
.license-text,
.disclaimer-text {
  font-size: var(--font-extra-small);
}

footer a:hover {
  text-decoration: underline;
  cursor: pointer;
}

/* ??? COLORS */

body,
html {
  color: var(--color-text);
}

body {
  background: linear-gradient(rgb(255, 255, 255), rgb(221, 221, 221));
}

.header {
  background: rgba(0, 0, 0, 0.4);
}

nav a {
  color: var(--color-background);
}

.download-button {
  background-color: var(--color-secondary);
  color: var(--color-secondary-text);
  text-align: center;
}

.download-button:hover {
  text-decoration: none;
  color: var(--color-text);
  background-color: var(--color-primary);
  transition: background-color 0.3s ease;
}

.article-section {
  background-color: var(--color-background);
}

.article-button {
  background-color: var(--color-accent);
}

.code-button {
  background-color: var(--color-tertiary);
}

@media screen and (max-width: 550px) {
  .article-section {
    background-color: var(--color-background-dim);
  }
}

.citation-container {
  background: linear-gradient(
    var(--color-tertiary) 0%,
    var(--color-primary) 100%
  );
  background-color: var(--color-tertiary);
}

.footer {
  background-color: var(--color-tertiary);
  padding: var(--margin-medium);
}

/* ??? Images */
.page-title-image-container img {
  height: var(--font-extra-large);
}

.article-image img {
  max-width: 100%;
  height: auto;
  margin: 0;
  padding: 0;
}

.research-card img {
  transition: transform 0.3s ease;
}

.research-card:hover img {
  transform: scale(1.02);
}

.research-img {
  width: 100%;
  height: 300px;
  object-fit: cover;
}

.license-image a,
.grant-image a {
  display: grid;
  align-items: center;
}

.license-image img {
  max-height: var(--font-extra-large);
  margin: 0;
  padding: 0;
  flex-grow: 1;
}

.grant-image img {
  max-width: 15vw;
  margin: 0;
  padding: 0;
  flex-grow: 1;
}

.pharmahungary-image {
  background-color: white;
}

@media screen and (max-width: 550px) {
  .grant-image img {
    max-width: 100%;
  }
}