/* 
* FONTS SETUP
* Defined in official Stanford guide: https://identity.stanford.edu/design-elements/typography/
* Sourced from Google Fonts: https://fonts.google.com/share?selection.family=Source+Sans+3:ital,wght@0,200..900;1,200..900|Source+Serif+4:ital,opsz,wght@0,8..60,200..900;1,8..60,200..900
* Fonts: "Source Sans 3", "Source Serif 4"
*/
@import url('https://fonts.googleapis.com/css2?family=Source+Sans+3:ital,wght@0,200..900;1,200..900&family=Source+Serif+4:ital,opsz,wght@0,8..60,200..900;1,8..60,200..900&display=swap');

/*
* COLORS SETUP
* Defined in official Stanford guide: https://identity.stanford.edu/design-elements/color/
*/
:root {
  --cardinal-red: #8C1515;
  --cardinal-red-light: #B83A4B;
  --cardinal-red-dark: #820000;

  --white: #FFFFFF;
  --black: #2E2D29;
  --cool-grey: #53565A;

  --digital-red: #B1040E;
  --light-red: #E50808;
  --dark-red: #820000;
  --digital-blue: #006CB8;
  --light-blue: #6FC3FF;
  --dark-blue: #00548F;
  --digital-green: #008566;
  --light-green: #1AECBA;
  --dark-green: #006F54;
}

/*
* 
* BASELINE SETUP
*
*/
html {
  scroll-behavior: smooth;
}

body {
  height: 100%;
  width: 100%;
  padding: 0;
  margin: 0;
  font-family: "Source Sans 3", sans-serif;
  font-size: 1.5rem;
  background-color: var(--white);
  color: var(--black);
}

a {
  text-decoration: none;
  font-weight: bold;
  color: var(--digital-blue);
}

a:hover,
a:focus {
  color: var(--light-blue);
}


/* 
* 
* NAVBAR SETUP 
*
*/
.navbar {
  position: fixed;
  top: 0;
  width: 100%;
  display: flex;
  justify-content: flex-end;
  align-items: center;
  font-size: 1.5rem;
  padding: 0.5rem 0;
  font-weight: bold;
  background-color: var(--cardinal-red);
}

.navbar__link,
.navbar__link:visited {
  flex-basis: content;
  text-decoration: none;
  margin: 0 1.5rem;
  color: var(--white);
  white-space: nowrap;
  transition: font-size 0.3s;
}

.navbar__link:hover,
.navbar__link:focus {
  font-size: 1.8rem;
  transition: font-size 0.3s;
}

.navbar__link--home {
  font-size: 2rem;
  margin-right: auto;
  transition: font-size 0.3s;
}

.navbar__link--home:hover,
.navbar__link--home:focus {
  font-size: 2.2rem;
  margin-right: auto;
  transition: font-size 0.3s;
}

.navbar__icon {
  display: block;
  width: 2rem;
  height: 2rem;
  margin: 0 1.5rem;
  transition: transform 0.3s;
}

.navbar__icon--clicked {
  transform: rotate(270deg);
  transition: transform 0.3s;
  margin: 0 1.3rem;
}

.navbar__dropdown {
  display: none;
  flex-basis: 100%;
  flex-direction: column;
  align-items: center;
  padding: 1rem;
  background-color: var(--digital-red);
  transition: height 0.3s;
}

.navbar__dropdown__link,
.navbar__dropdown__link:visited {
  text-decoration: none;
  color: var(--white);
  transition: height 0.3s;
}

.navbar__dropdown__link:hover,
.navbar__dropdown__link:focus {
  font-size: 1.8rem;
  transition: font-size 0.3s;
}

/* Hide dropdown menu when screen is big enough */
@media screen and (width >=520px) {
  .navbar__icon {
    display: none;
    padding: 0;
  }
}

/* Hide navbar links when screen is too small */
@media screen and (width < 520px) {
  .navbar__link {
    display: none;
  }

  .navbar__link--home {
    display: block;
  }

  .navbar--dropdown {
    flex-wrap: wrap;
    padding: 0.5rem 0 0 0;
  }

  .navbar__dropdown--clicked {
    display: flex;
  }
}


/* 
* 
* SECTION PARALLAX SETUP
*
*/
.section {
  margin-top: 2rem;
  padding-top: 40vh;
  background-attachment: fixed;
  background-position: bottom;
  background-repeat: no-repeat;
  background-size: cover;
}

#about {
  background-image: url("img/backgrounds/gates2.jpg");
}

#members {
  background-image: url("img/backgrounds/gates3.jpg");
}

#contact {
  background-image: url("img/backgrounds/gates4.jpg");
}

.section__text {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 0 10vw 5vh;
  background-color: var(--white);
}

.section__text__header {
  flex-grow: 1;
  margin: 4rem 0 3rem;
  font-family: "Source Serif 4";
  font-size: 5rem;
  font-weight: bold;
  color: var(--black);
  text-align: center;
}

/* For mobile, shrink text */
@media screen and (width < 520px) {
  .section__text__header {
    font-size: 3rem;
  }
}

.section__text__content {
  flex-grow: 1;
  color: var(--cool-grey);
}

.section__text__content--cards {
  display: flex;
  flex-direction: column;
  width: 100%;
}

.biocard {
  display: flex;
  justify-content: center;
  align-items: center;
  width: 100%;
  margin: 1rem 0;
}

.biocard__imagewrapper {
  flex: 0 0 15vw;
  width: 15vw;
  height: 15vw;
}

.biocard__image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 50%;
}

.biocard__text {
  flex-grow: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
  margin-left: 2rem;
}

.biocard__name {
  font-weight: bold;
}

.biocard__research {
  font-style: italic;
  font-size: 1.2rem;
}

.biocard__bio {
  font-size: 1.2rem;
}

/* Make it work on mobile by wrapping */
@media screen and (width < 700px) {
  .biocard {
    flex-wrap: wrap;
  }

  .biocard__imagewrapper {
    flex: 0 0 50vw;
    width: 50vw;
    height: 50vw;
    margin-bottom: 2rem;
  }
}

.button__wrapper {
  margin-top: 2rem;
  display: flex;
  justify-content: center;
}

.button,
.button:visited {
  width: fit-content;
  padding: 2rem;
  border-radius: 2rem;
  text-align: center;
  text-decoration: none;
  color: var(--white);
  background-color: var(--digital-green);
  font-weight: bold;
  font-size: 2rem;
  transition: all 0.3s;
}

.button:hover,
.button:focus {
  transform: scale(1.2);
  color: var(--white);
  transition: all 0.3s;
}