@import url('https://fonts.googleapis.com/css2?family=Poppins:ital,wght@0,300;0,400;0,600;0,700;1,300;1,400;1,600;1,700&display=swap');

:root {

--clr-accent:#ffc6c7;
--clr-title: #4d616c;
--clr-content: #373d3f; 

--clr-card-bg-1: #e9f3f9;
--clr-card-bg-1-dark: #c3dae8;

--clr-card-bg-2: #E6F7DC;
--clr-card-bg-2-dark: #b6dbc4;

--clr-card-bg-3: #F7E7D0;
--clr-card-bg-3-dark: #d1cdae;

--clr-card-bg-4: #c8f2ea;
--clr-card-bg-4-dark: #88e3d1;

/* --clr-card-bg-5: #CFBAE1;
--clr-card-bg-5-dark: #bb8ee1; */

--fs-sectiont-title: clamp(1rem, 0.8vw + 1rem, 3rem);
--fs-subsectiont-title: clamp(0.5rem, 0.4vw + 0.5rem, 3rem);
--fs-card-title: clamp(0.8rem, 0.6vw + 0.5rem, 3rem);


/* --clr-main-bg : fefff0; */

}

* {
    /* margin: 0;
    padding: 0; */
    
    box-sizing:border-box;
}

body {
  --padding: 1rem;
  padding-top: 0; 
  margin-top: 7rem; 
  font-family: poppins, sans-serif;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  min-height: 100vh;
  min-width: 100vw;
  /* background: #f4f4f4; */
  background: HSL(220, 50%, 99%)
}

mark{
    background-color: #ffff82;
    color: var(--clr-content); 
    font-weight: 600;
}

nav {
    position: fixed;
    top: 0;
    z-index: 99;
    transition: all 300ms ease-in-out;
    overflow: hidden;
}


.navbar{

    display: flex;
    max-width: 72rem;
    width: 100%;
    justify-content: space-between;
    align-items: center;
    /* background-color: #9f6997; */
    background-color: #AB4E68;
    color: white;
    box-sizing: border-box;
    margin-bottom: 4rem;
}

.navbar__brand  {
    width: 20rem;
    font-size: 0.7rem;
    font-style: italic;
    line-height: 0.8rem;
}

.navbar__brand  P{
    display: inline;
    font-style: normal;
    font-size: 0.6rem;
    
}

.navbar__brand img {
    float: left;
    margin-right: 0.5rem;
    padding-left: 0.5rem;
    padding-top: 0.5rem;
    width: 65px;;
    height: auto;
    transform: rotate(-15deg);
    
}

.frame1 {
    position: absolute;
    border: 60px solid rgba(183, 97, 121,0.4);
    border-radius: 20%;
    width: 450px;
    height: 450px;
    top: 0;
    left: 15%px;
    z-index: -1;
    animation: rotate-right 25000ms infinite ease-in-out;
 }

 .frame2 {
    position: absolute;
    border: 60px solid rgba(183, 97, 121,0.4);
    border-radius: 20%;
    width: 400px;
    height: 400px;
    top: -100px;
    left: 50%;
    z-index: -1;
    animation: rotate-left 20000ms infinite ease-in-out;
 }

@keyframes rotate-right{
    0% {
        transform: rotate(0deg);
    }
    50% {
        transform: rotate(-360deg);
    }
    100%    {
        transform: rotate(0deg);
    }
}

@keyframes rotate-left{
    0% {
        transform: rotate(0deg) translate3d(0);
    }
    50% {
        transform: rotate(-360deg) translate3d(-100px, 40px, 60px);
    }
    100%    {
        transform: rotate(0deg) translate3d(0);
    }
}

.navbar-links {
    height: 100%;
}

.navbar__links ul {
    margin: 0;
    padding: 0;
    display: flex;
}

.navbar__links li {
    list-style: none;
    
}
.navbar__links li:hover {
    background-color: #2f4858;
}

.navbar__links li a {

    text-decoration: none;
    color: white;
    padding: 1rem;
    display: block;
}

.toggle-button{
    position: absolute;
    top: 0.75rem;
    right: 1rem;
    display: none;
    flex-direction: column;
    justify-content: space-between;
    width: 30px;
    height: 21px;
}

.toggle-button .bar {
    height: 3px;
    width: 100%;
    background-color: white;
    border-radius: 10px;

}

@media (max-width: 800px) {
    
    .toggle-button {
        display: flex;
    }

    .navbar__links {
        display: none;
        width: 100%;
    }

    .navbar{
        flex-direction: column;
        align-items: flex-start;
    }

    .navbar__links ul {
        flex-direction: column;
        width: 100%;
    }

    .navbar__links ul li {
        text-align: center;
    }

    .navbar__links ul li a {
        padding: 0.1rem 1rem;;
    }

    .navbar__links.active {
        display: flex;
    }
}

.scroll-down nav {
		transform: translate3d(0, -100%, 0);
}

.scroll-up nav {
		filter: drop-shadow(0 -10px 20px rgb(170, 170, 170));
}

.divider-appendix{
    
    /* background-image: linear-gradient(to right, transparent, rgb(48,49,51), transparent); */
    background-image: linear-gradient(to right, transparent, lightcoral, transparent);
    min-width: 50%;
    height: 3px;
    border: none;
    margin: auto;
    position: relative;
    margin-bottom: 2.5rem;
 }

.divider-appendix::before {
    content: 'Appendix 1';
    display: block;
    min-width: 20%;
    padding: 0.3em;
    /* font-size: 2rem; */
    font-size: var(--fs-sectiont-title);
    text-align: center;
    position: absolute;
    top: 0;
    left: 50%;
    background-color: #FBFCFE;
    transform: translate(-50%, -50%);
    
  }

 .divider-appendix--PH::before {
    content: 'Public Health';
    font-size: var(--fs-subsectiont-title);
 }

 .divider-appendix--R::before {
    content: 'Research';
    font-size: var(--fs-subsectiont-title);
 }

 .divider-appendix--O::before {
    content: 'Outbreaks';
    font-size: var(--fs-subsectiont-title);
 }

 .divider-appendix--Letter::before {
    content: 'Open Letter';
    
 }

 .divider-appendix--Conclusion {
    margin-top: 2rem;
    
 }
 .divider-appendix--Conclusion::before {
    content: 'Share';
    
 }


 .divider-appendix--Omicron{
     margin-top: 2rem;
 }

 .divider-appendix--Omicron::before {
    content: 'Other';
    font-size: var(--fs-sectiont-title);
 }


 
.cards-grid {
    display: column;
    columns: 2;
    column-gap: 1.5rem;
    margin-bottom: 2rem;
}


.cards-grid > * {
    break-inside: avoid;
}

.card {
  background-color: var(--clr-card-bg-1);
  /* background-image:url(img/head_Fauci_tr.png); */
  background-repeat: no-repeat;
  background-size: 10%;
  background-position: top 3% right 3%;
  max-width: 35rem;
  border-radius: 15px;
  position: relative;
  box-shadow: rgba(100, 100, 111, 0.2) 0px 7px 29px 0px;
  overflow: hidden;
  margin-bottom: 2rem;
  /* outline: 1px red solid; */
}

    .card--research {
        background-color: var(--clr-card-bg-2)
    }

    .card--news {
        background-color: var(--clr-card-bg-3)
    }

    .card--omicron {
        background-color: var(--clr-card-bg-4)
    }

    .card--conclusion {
        background-color: var(--clr-card-bg-5)
    }



    @media (max-width: 800px) {
        

        .cards-grid {
            display: column;
            columns: 1;
        }

        .card{
            width: max(15rem, 90vw);
            
        }

    }

    
.card__title{
  
    font-style: regular;
    font-size: 0.8rem;
    color: var(--clr-title);
    width: max-content;
    padding: 1rem 1rem;
    position: relative;
    line-height: 1.3rem;
    
  }

  .card__title strong{
    /* outline: 1px red solid;  */
    display: block;
    /* font-size: 1.3rem; */
    font-size: var(--fs-card-title);
  }

  .card__title::after{
    content:'';
    position: absolute;
    left: calc(var(--padding) * -1);
    bottom:0.8rem;
    height:4px;
    width: calc(120% + var(--padding)); 
    /* background: #ffc6c7; */
    /* background:var(--clr-card-bg-1-dark); */
    background: linear-gradient(.25turn, var(--clr-card-bg-1-dark),var(--clr-card-bg-1) );
    transform: scaleX(1);
    /* transform: scaleX(0); */
    transform-origin: left;
    transition: transform 500ms ease; 
  }
 
  .card__title-research::after{
    /* background: var(--clr-card-bg-2-dark); */
    background: linear-gradient(.25turn, var(--clr-card-bg-2-dark),var(--clr-card-bg-2) )
    
    
  }

  .card__title-news::after{
    /* background: var(--clr-card-bg-3-dark); */
    background: linear-gradient(.25turn, var(--clr-card-bg-3-dark),var(--clr-card-bg-3) )
  }

  .card__title-omicron::after{
    /* background: var(--clr-card-bg-3-dark); */
    background: linear-gradient(.25turn, var(--clr-card-bg-4-dark),var(--clr-card-bg-4) )
  }

  
    .card:hover .card__title::after{
    transform: scaleX(1);
    
  }
  
.card__content {
  
  font-style: italic;
  font-size: 0.95rem;
  padding: 0 1.8rem 1.8rem 1.8rem;
  color: var(--clr-content); 
}

.card__text {
    padding: 0.5rem;
    position: relative;
  }
  
  .card__text::before
  {
     content: "“";
     font-family: Georgia;
     font-size: 6rem;
     position: absolute;
     top:-1.2rem;
     left: -1.5rem;
     color: rgba(77,97,108, 0.1);
     transition: color 500ms ease; 
    }
  
    .card:hover .card__text::before, 
    .card:focus-within .card__text::before{
        color: var(--clr-accent);
     }
     

    .card__text::after
    {
       content: "“";
       font-family: Georgia;
       font-size: 6rem;
       position: absolute;
       bottom: -0.5rem;
       right: -1rem;
       color: rgba(77,97,108, 0.1);
       transform: rotate(180deg);
       transition: color 500ms ease; 
    }

    .card:hover .card__text::after, 
    .card:focus-within .card__text::after {
        color: var(--clr-accent);
        }

.card__footer {
/* outline: 1px red solid; */
/* position:absolute; */
/* display:flex; */
left:0;
bottom: 0;
width:100%;
height: 8rem;
/* padding: 0 1rem; */
font-size: 0.9rem;
background-color: var(--clr-card-bg-1-dark);
/* background-color: rgba(195, 218, 232, 0.95); */
color: var(--clr-title);
/* transform: translateY(6.5rem); */
transition: transform 500ms ease;
}

    .card__footer-research {

        background-color: var(--clr-card-bg-2-dark)
    }

    .card__footer-news {

        background-color: var(--clr-card-bg-3-dark)
    }

    .card__footer-omicron {

        background-color: var(--clr-card-bg-4-dark)
    }


  /* .card__footer:focus-within{
    transform: translateY(0);
  } */

@media(hover: hover) {
    .card__footer{
        position:absolute;
        transform: translateY(6.5rem);
    }

    .card__footer > *:not(.card__footer-head){
        opacity: 0;
        transition: opacity 600ms linear;
    }

    .card__footer:hover  {
        transform: translateY(0);
    }

    .card__footer:hover >*:not(.card__footer-head) {
        opacity: 1;
      }

      .card__title::after{
        transform: scaleX(0);
      }
}


  /* .card__footer:focus-within >*:not(.card__footer-head) {
    opacity: 1;
  } */

.card__footer-head{
     
    position: relative;
    display: flex;
     /* border-top: 1px solid black; */
     padding: 0 1rem;
 }

.card__footer-head-more{
    font-size: 0.8rem;    
    margin-left: auto;
}
.card__footer-head-more img {
    width: 20px;
    vertical-align:text-bottom;
}

.card__footer-content {
    padding: 0 1.8rem;
    color: var(--clr-content); 
    font-size: 0.8rem;    
}

p {
  position: relative;
}

 .card__footer-head-date {
    padding-left: 2%;
    font-size: 0.8rem;
}


/* Card Photos  */

.card--fauci{
    background-image:url(img/head_Fauci_tr.png);
}

.card--tam{
    background-image:url(img/head_Tam_tr.png);
}

.card--walensky{
    background-image:url(img/head_Walensky_tr.png);
}

.card--ladapo{
    background-image:url(img/head_Ladapo_tr.png);
}

.card--holohan{
    background-image:url(img/head_Holohan_tr.png);
}
 
.card--bhattacharya{
    background-image:url(img/head_Bhattacharya_tr.png);
}

.card--deGascun{
    background-image:url(img/head_Gascun_tr.png);
}

.card--oLoughlin{
    background-image:url(img/head_OLoughlin_tr.png);
}

.card--medRxiv{
    background-image:url(img/logo_medRxiv_tr.png);
}

.card--bioRxiv{
    background-image:url(img/logo_bioRxiv.png);
}

.card--lancet{
    background-image:url(img/logo_theLancet.png);
}

.card--nature{
    background-image:url(img/logo_nature.png);
}

.card--europejournal{
    background-image:url(img/logo_europeanjournal.png);
}

.card--nejm{
    background-image:url(img/logo_nejm.png);
}

.card--newsweek{
    background-image:url(img/logo_Newsweek.png);
}

.card--wsj{
    background-image:url(img/logo_wsj.png);
}

.card--cnbc{
    background-image:url(img/logo_cnbc.png);
}

.card--torontosun{
    background-image:url(img/logo_totontosun.png);
}

.card--reuters{
    background-image:url(img/logo_reuters.png);
}

.card--cnn{
    background-image:url(img/logo_CNN.png);
}

.card--surv{
    background-image:url(img/logo_surv.png);
}

.card--msn{
    background-image:url(img/logo_msn.png);
}

.card--cdc{
    background-image:url(img/logo_cdc.png);
}

.card--jones{
    background-image:url(img/head_Jones_tr.png);
}

.card--mccullough{
    background-image:url(img/head_McCullough_tr.png);
}

.card--malhotra{
    background-image:url(img/head_Aseem_tr.png);
}

.card--rau{
    background-image:url(img/head_Rau_tr.png);
}

.card--heneghan{
    background-image:url(img/head_Heneghan_tr.png);
}


/* Appendix Note   */

.note-appendix{
    max-width: 70rem;
    margin-bottom: 1rem;
    font-size: 0.8rem;
}

/* Letter  */

.letter{
    display: flex;
    flex-direction: column;
    flex: 1;
    margin-top: 1rem;
    margin-bottom: 5rem;
    max-width: 70rem;
    
    
    max-height: 50vh;
    overflow-x: hidden; 
    overflow-y: auto; 
    font-size: 0.9rem;
    
}

.letter li {
    padding-bottom: 1rem;
}

.letter__paper {
    
    width: 90%;
    margin: 1rem auto;
    background: #fff;
    /* padding: 4rem; */
    padding:clamp(1rem, 2.8vw + 1rem, 4rem);
    position: relative;
    margin-bottom: 2rem;
    border: 1px solid #bbb;
    /* box-shadow: 1px 1px 1px rgba(0,0,0,0.25); */
    /* box-shadow: rgba(0, 0, 0, 0.19) 0px 10px 20px, rgba(0, 0, 0, 0.23) 0px 6px 6px; */
    /* box-shadow: rgba(0, 0, 0, 0.15) 1.95px 1.95px 2.6px; */
    box-shadow: rgba(0, 0, 0, 0.24) 0px 3px 8px;
}

.letter__paper--notes {

    font-size: 0.8rem;    
}

.summary{
    display: flex;
    flex-direction: column;
    flex: 1;
    margin-top: 1rem;
    margin-bottom: 5rem;
    max-width: 70rem;
    width: 100%;
    overflow-x: hidden; 
    overflow-y: auto; 
    font-size: 0.9rem;
    
}


.social-links{
    position: relative;
    /* border: 2px solid grey; */
    width: 50%;
    display: flex;
    align-items: center;
    justify-content: space-evenly;
    margin: 0 auto; 
}

.twitter i, .fb  i {
    
    /* color: grey; */
    font-size: 3.5rem; 
    display: inline;
    color: #ff7a7a;
}

.share {
    text-align: center;
    font-size: 1.2rem;
}

.share a {
    
    font-size: 0.8rem;
}

.social-links a {
    text-decoration:none;
}

.twitter i:hover, .fb i:hover {
    color:red;
}

.final {
    font-size: 1rem;
    position: relative;
    padding-top: 2.5rem;
    background-color: #eff4ff;
    max-width: 72rem;
    overflow: hidden;
    
    
}