:root {
    --Black: #202020;
    --White: #F5F5F5;
    --Red: #F23064;
    --Blue: #2BB9D9;
    --Purple: #AD59B3;
    --Green: #11A68A;
    --Yellow: #F2913D;
    --Gray: #A1A1A1;
    --LightGray: #C4C4C4;
    --DarkGray: #636363;
    --BoxPaddingUnit: 1rem;
    --BoxGap: 20px;
    --BoxRadius: 5px;
    --KeywordPadding: 5px;
    --MinMargin: 20px;
    --PostHeight: 25vh;
    --PostTitleFS: 5em;
    --PostAbstractFS: 1em;
    --PostMetaFS: 1em;
    --PostMetaBorder: 4px;
    --HeaderHeight: 50px;
    --FontSizeTitle: 3rem;
    --FontGrowTitle: 1vw;
    --FontSizeAbstract: 1rem;
    --FontGrowAbstract: 0.2vw;
    --FontSizeKeywords: 1rem;
    --FontGrowKeywords: 0.2vw;
    background-color: var(--White);
  }


* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
  }
  
  body {
    font-family: Consolas, monospace;
    background-color: var(--White);
  }

h1, h2, h3, h4 {
  font-family: Arial, Helvetica, sans-serif;
  color: var(--Black);
  line-height: 80%;
  font-weight:bold;
}

h1 {
  font-size: calc(var(--FontSizeTitle) + var(--FontGrowTitle));
  padding: var(--BoxPaddingUnit) 0;
  display: block;
  border-bottom:10px solid var(--Black);
  letter-spacing: -4px;
  margin-top: var(--BoxPaddingUnit);
}

h2 {
  font-size: calc(0.5*var(--FontSizeTitle) + var(--FontGrowTitle));
  text-decoration: 10px underline;
  letter-spacing: -2px;
  padding: var(--BoxPaddingUnit) 0;
}

h3{
  font-size: calc(0.4*var(--FontSizeTitle) + var(--FontGrowTitle));
  text-decoration: 5px dashed underline;
  letter-spacing: -2px;
}

p{
  font-weight: 4 00;
  color: var(--Black);
  letter-spacing: -1px;
}

  .container {
    display: flex;
    flex-direction: column;
    max-width: 1200px; /* or whatever max width you prefer */
    margin: 0 auto;     /* centers the container horizontally */
    padding: 0 var(--BoxPaddingUnit);    /* optional: adds some space on small screens */
  }
 
  /* Shared grid style */
  .header, .main, .footer {
    display: grid;
    gap: var(--BoxPaddingUnit);
    padding: var(--BoxPaddingUnit) 0 0 0;
  }
  
  .header > div,
  .main > div,
  .footer > div {
    text-align: center;
    border-radius: var(--BoxRadius);
  }

    .footer > div:nth-child(2) {
      font-family: Arial, Helvetica, sans-serif;
      letter-spacing: -1px;
      font-weight:900;
    }

/* HEADER */

.header {
    position: sticky;
    top: 0;
    z-index: 10; /* make sure it's above other content */
    background-color: var(--White);
    grid-template-columns: 5fr 1fr repeat(4, 3fr);
    grid-auto-rows: auto;
    padding: var(--BoxPaddingUnit) 0 var(--BoxPaddingUnit) 0;
    margin-bottom: var(--BoxPaddingUnit);
    margin-bottom: 0;
    font-size: calc(var(--FontSizeKeywords) + var(--FontGrowKeywords));
    box-shadow: 1rem 0rem var(--White);
  }

#post-header {
  background: none;
  padding-bottom: 0;
}


#logo a {
  position: relative;
  text-decoration: none;
  color: inherit;
}

.header > div{
    background-color: var(--Black);
    color: var(--White);
    padding: calc(100% / 12) 0 calc(100% / 12) 0; /* 1:6 ratio */
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    overflow: hidden; /* optional: if content overflows */
    /* text-transform: uppercase; */
  }

.header img{
    height: 100%;
}

.header #logo {
  background-color: var(--White);
  padding: 0;
  color: var(--Black);
  font-family: Arial, Helvetica, sans-serif;
  font-weight: 900;
  letter-spacing: -3px;
  font-size: 2rem;
  border-radius: 0;
  justify-content:left;
  border-bottom: 5px solid var(--White);
}

.header #info{
  background-color: var(--White);
  color: var(--Black);
  color: var(--LightGray);
  padding-right: var(--BoxGap);
  justify-content: end;
  border-bottom: 5px dotted var(--White);
  cursor: help;
}

.header #architecture{
  background-color: var(--Red);
}

.header #research{
  background-color: var(--Green);
}

.header #photography{
  background-color: var(--Blue);
}

.header > div#architecture,
.header > div#research,
.header > div#photography {
  cursor: cell;
}

.header > div#blog {
  cursor: crosshair;
}

.header .active-filter {
  text-decoration: underline;
  text-decoration-thickness: 0.4rem ;
  text-underline-offset: 4px;
  transition: all 0.3s ease;
}

.header #architecture.active-filter{
  text-decoration-color: var(--Red);
  background-color: var(--Black);
}

.header #research.active-filter{
  text-decoration-color: var(--Green);
  background-color: var(--Black);
}

.header #photography.active-filter{
  text-decoration-color: var(--Blue);
  background-color: var(--Black);
}

.header .info-bubble{
  background-color: white;
  color: var(--Black);
  padding: var(--BoxPaddingUnit);
  white-space: normal;
  word-wrap: break-word;
  overflow-wrap: anywhere;
}

/* FOOTER */

.footer {
    position: sticky;
    bottom: 0;
    z-index: 10;
    background: var(--White);
    grid-template-columns: repeat(3, 1fr);
    /* grid-auto-rows: calc(100vw / 3 / 6); */
    padding-top: 0.3rem;
  }

  .footer > div {
    position: relative;
    padding: calc(100% / 96) 0 calc(100% / 96) 0; /* 1:6 ratio */
    background-color: var(--White);
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden; /* optional: if content overflows */
    /* border-top: 10px solid white; */
  }

  .header > div > *,
.footer > div > * {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
}
  
  /* Desktop layout (default) */

  
  .main {
    background-color: var(--White);
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    grid-auto-flow: dense; /* 🔥 this is essential */
    padding-top: 0rem;
    padding-bottom: 0.5rem;
  }
  

  .main > div {
    aspect-ratio: 1 / 1;
    background: var(--Black);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.3s ease;
  }

  .post {
    display: flex;
    flex-direction: column;
    overflow: hidden;
    transition: all 0.3s ease;
    padding: var(--BoxPaddingUnit);
    gap: var(--BoxPaddingUnit);
    position: relative;
  }

.post > *{
    width: 100%; /* Force full width */
}


.post.has-image {
  display: flex;
  flex-direction: column;
  padding: 0;
  position: relative;
}

.post.has-image .number {
  position: absolute;
  top: 0.5rem;
  right: 0.5rem;
  z-index: 1;
  background-color: var(--Black);
  color: white;
  font-size: var(--FontSizeAbstract);
  padding: 0.2em 0.5em;
  border-radius: 4px;
  font-weight: bold;
  display: inline-block;
  width: auto;
}

.post.has-image .image-wrapper {
  width: auto;
  height: 100%;
}

.post.has-image img {
  width: 100%;
  object-fit: cover;
  display: block;
}

.image-note{
  color: var(--White);
  background-color: var(--Black);
  padding: calc(3*var(--BoxGap)) calc(0.5*var(--BoxGap));
  font-size: 0.9rem;
  font-style: italic;
  text-align: left;
  align-self: start;
}

/* Hide abstract and keywords until expanded */
.post.has-image .abstract,
.post.has-image .keywords {
  display: none;
}

/* Show abstract when expanded */
.post.has-image.expanded {
  flex-direction: row;
}

.post.has-image.expanded .image-wrapper {
  height: 100%;
}

.post.has-image.expanded img {
  height: 100%;
}

.post.has-image.expanded .abstract {
  display: block;
  padding: 1rem;
  font-style: italic;
  overflow: auto;
  white-space: normal;
  text-overflow: unset;
}

.post.has-image.expanded-left .image-wrapper {
  height: 100%;
}

.post.has-image.expanded-left img {
  height: 100%;
}

.post.has-image.expanded-left .abstract {
  display: block;
  padding: 1rem;
  font-style: italic;
  overflow: auto;
  white-space: normal;
  text-overflow: unset;
}

/* Title: takes as much space as available when collapsed */
.post .title {
    background-color: var(--Black);
    flex-grow: 1;
    flex-shrink: 1;
    font-weight: bold;
    text-align: left;
    height: auto;
  }

  .title .number {
    position: absolute;
    top: 0.5rem;
    right: 0.5rem;
    z-index: 1;
    background-color: var(--Black);
    color: white;
    font-size: var(--FontSizeAbstract);
    padding: 0.2em 0.5em;
    border-radius: 4px;
    font-weight: bold;
    display: inline-block;
  }
  
  .title .title-text {
    overflow: hidden;
    text-overflow: ellipsis;
    font-size: calc(var(--FontSizeTitle) + var(--FontGrowTitle));
    font-family: Arial, Helvetica, sans-serif;
    letter-spacing: -4px;
    line-height: 80%;
    padding-top: calc(var(--BoxPaddingUnit)/2);
    padding-bottom: calc(var(--BoxPaddingUnit)/2);
    text-decoration: underline var(--shadow-color);
    color: white;
  }


#post-title{
  display:flex;
  flex-direction: column;
}

/* Abstract: hidden by default */
.post .abstract {
    display: none;
    font-size: calc(var(--FontSizeAbstract) + var(--FontGrowAbstract));
    font-style: italic;
    overflow: hidden;
    text-align: left;
    color: white;
  }
  
  /* Keywords: fixed height matching the footer */
  .post .keywords {
    position: relative;
    font-size: calc(var(--FontSizeKeywords) + var(--FontGrowKeywords));
    display: flex;
    align-items: center;
    justify-content: left;
    flex-direction: row;
    gap: 0.3rem;
    font-weight: bold;
    color: white;
    min-width: 0;
  }

  .keyword {
    flex: 0 1 auto; 
    width: auto;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    min-width: 0;
    max-width: 100%;
    padding: 0 calc(var(--BoxPaddingUnit)/2);
    border-radius: 0.2rem;
    height: 2rem;
    display: flex;
    align-items: center;
    justify-content: left;
    text-transform: capitalize;
  }
  
  /* On hover: shadow */


  .main > .post:hover {
    box-shadow: 0.5rem 0.5rem var(--shadow-color);
    transform: translateY(-0px);
    transition: all 0.2s ease;
  }
  
/* When post is expanded */

.post.expanded .title {
    white-space: normal; /* Allow title to wrap */
    overflow: visible;
    height: auto;
  }
  
  .post.expanded .abstract {
    display: block;
    height: auto;
    overflow: hidden;
    text-overflow: ellipsis;
  }

  .post.expanded-left .abstract {
    display: block;
    height: auto;
    overflow: hidden;
    text-overflow: ellipsis;
  }

  .post.expanded .keyword {
    padding: 0 calc(var(--BoxPaddingUnit)/4);
  }
  

  /* When clicked: expand */
  .main > div.expanded {
    transform: scale(1);
    z-index: 1;
  }
  
  .main > div.expanded-left {
    transform: scale(1);
    z-index: 1;

  }
  
  

  
  /* Mobile layout */
  @media (max-width: 768px) {
    .header {
      grid-template-columns: repeat(4, 1fr);
      grid-template-rows: auto auto;
    }


    .header > div:nth-child(1){
      grid-column: span 3;
      border-bottom: none;
    }

    .header > div:nth-child(2) {
      grid-column: span 1;
      border-bottom: none;
    }

    .header #logo {
      border-left: none;
      padding: 0;
      border-bottom: none;
    }

    .header #info {
      padding: 0;
      padding-right: var(--BoxGap);
      border-bottom: none;
    }
  
    .main {
      grid-template-columns: repeat(2, 1fr);
      grid-auto-flow: none;
    }
  
    .footer {
      grid-template-columns: repeat(2, 1fr);
    }

    .footer > div:nth-child(2) {
        display: none;
      }

      .post{
        box-shadow: 0.3rem 0.3rem var(--shadow-color);
      }

      .post .expanded{
        box-shadow: 0.3rem 0.3rem var(--shadow-color);
      }

      .post.expanded-left{
        box-shadow: 0.3rem 0.3rem var(--shadow-color);
      }

      .post-keywords,
      .post-keywords {
        flex: 0 1 auto;
        min-width: 0;
        max-width: 100%;
        white-space: nowrap;
        overflow: hidden;
        text-overflow: ellipsis;
      }

      main.post-main .post-content {
        grid-template-columns: 1fr !important;
      }
.post-content{
  display: none;
}
      .main > div.expanded,
      .main > div.expanded-left {
        grid-column: span 2 !important;
        height: auto !important;
      }


      .title .title-text {
        overflow: hidden;
        text-overflow: ellipsis;
        white-space: normal;
        font-size: 2.5rem;
        display: -webkit-box;
          -webkit-line-clamp: 3; /* 🔁 max number of visible lines */
          -webkit-box-orient: vertical;
      }

      .keyword{
        font-size: 0.8rem;
        height: 1.2rem;
      }

      .header #architecture,
      .header #research,
      .header #photography,
      .header #blog {
        font-size: 0.7rem;
      }

      .title .number {
        top: 0rem;
        right: 0rem;
        font-size: 0.8rem;
      }

      .post-footnotes {
        display: none;
      }

      .post-content .post-text {
        padding: 1rem;
        z-index: 10;
      }

      .post.has-image.expanded .abstract {
        font-size: calc(0.8*(var(--FontSizeAbstract) + var(--FontGrowAbstract)));
      }
  }
  
.post-toc {
  top: 0;
  z-index: 2;
  display: flex;
  flex-direction: column;
}

.toc-link:hover {
  text-decoration: underline;
  background: var(--Black);
  color: white;
}
 
a.toc-link {
color: var(--Black);
display: block;
border-radius: var(--BoxRadius);
padding: 0.4rem;
}

.post-main{
  display: flex;
  flex-direction: column;
  gap: var(--BoxPaddingUnit);
  padding-top: var(--BoxPaddingUnit);
}

.post-head{
    background-color: var(--Black);
    padding: var(--BoxPaddingUnit);
    border-radius: var(--BoxRadius);
    z-index: 10;
  }

.post-head > * {
  padding-bottom: var(--BoxPaddingUnit);
  padding-top: var(--BoxPaddingUnit);
}

.post-title{
  color: white;
  border-bottom: 5px solid var(--Black);
  font-size: calc(var(--FontSizeTitle) + var(--FontGrowTitle));
  font-family: Arial, Helvetica, sans-serif;
  font-weight: bold;
  letter-spacing: -4px;
  line-height: 80%;
  padding-top: calc(var(--BoxPaddingUnit)/2);
  text-decoration: underline var(--shadow-color);
  border-bottom: 5px solid white;
}

.post-abstract{
  color: white;
  font-style: italic;
}

.post-keywords{
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  flex-direction: row;
  gap: 0.3rem;
  font-weight: bold;
  color: white;
}
.post-keyword {
  background-color: var(--Red);
  flex:1;
  width: auto;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  padding: calc(var(--BoxPaddingUnit)/2) calc(var(--BoxPaddingUnit)/2);
  border-radius: var(--BoxRadius);
}

.post-content{
  position: relative;
  display: grid;
  grid-template-columns: 1fr 3fr;
  border-radius: var(--BoxRadius);
}

.post-footnotes{
  padding: var(--BoxPaddingUnit);
  text-align: end;
  }

.post-text {
  background-color: white;
  padding: calc(4*var(--BoxPaddingUnit));
  border-radius: var(--BoxRadius);
  z-index: 10;
  }

.post-text pre {
  background-color: #f6f6f6;
  padding: 1em;
  border-radius: 6px;
  overflow-x: auto;
  white-space: pre-wrap;
  word-break: break-word;
  margin: 1em 0;
  font-family: monospace;
  font-size: 0.9em;
}

.post-text code {
  font-family: monospace;
  color: #333;
}

.important-comment {
  background-color: var(--Red);
  color: white;
  padding: 1em;
  border-radius: 6px;
  margin: 1em 0;
  font-style: italic3;
}

p {
  text-align: justify;
  text-justify: inter-word;
}

.footnote {
  padding: 0 var(--BoxPaddingUnit);
  border-right: 5px solid var(--Black);
}

.post-image {
  margin: var(--BoxPaddingUnit) 0;
  text-align: center;
}

.post-image img {
  max-width: 100%;
  height: auto;
  border-radius: 8px;
}

.post-image figcaption {
  font-size: 0.9rem;
  color: var(--Gray);
  margin-top: 0.5rem;
}

#image-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0,0,0,0.8);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 999;
  cursor: zoom-out;
}

#image-overlay img {
  max-width: 90%;
  max-height: 90%;
  border-radius: 10px;
  box-shadow: 0 0 20px rgba(0,0,0,0.7);
}

.footnote-popup {
  position: absolute;
  background: var(--White);
  color: var(--Black);
  border: 1px solid var(--Gray);
  border-radius: 8px;
  padding: 0.8rem;
  max-width: 300px;
  z-index: 1000;
  box-shadow: 0px 4px 16px rgba(0,0,0,0.3);
  font-size: 0.9rem;
}

#contact-popup {
  position: fixed;
  inset: 0;
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 999;
}

/* translucent background layer */
.contact-overlay {
  position: absolute;
  inset: 0;
  background-color: rgba(0, 0, 0, 0.6);
  z-index: 1;
}

/* visible popup box */
.contact-box {
  position: relative;
  z-index: 2;
  background-color: var(--White);
  color: var(--Black);
  padding: 1rem 1.5rem;
  border-radius: 10px;
  box-shadow: 0 4px 20px rgba(0,0,0,0.3);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
  font-size: 1rem;
}

.contact-box button {
  cursor: pointer;
  padding: 0.5rem 1rem;
  background-color: var(--Black);
  color: var(--White);
  border: none;
  border-radius: 5px;
  font-size: 0.9rem;
}

.contact-box button:hover {
  background-color: var(--GrayDark);
}

  @media (max-width: 768px) {
    .post-content{
      display: block;
    }
  }

a {
  word-break: break-word;
  overflow-wrap: anywhere;
}

/*   * {
  outline: 1px solid red;
} */