/* ------------------------------------------------------------------
   GLOBAL TYPOGRAPHY & LAYOUT
   ------------------------------------------------------------------*/
   @import url("https://fonts.googleapis.com/css2?family=Playfair+Display:wght@400;700&family=Roboto+Mono:wght@300;400;700&display=swap");

   html,body{
     margin:0;
     padding:0;
     overflow-x: hidden;
     width: 100%;
   }
   body{
     background:#fdfaf4;
     font-family:"Avenir Next","Inter","Helvetica Neue",Arial,sans-serif;
     color:#1b1b1b;
   }
   
   /* ------------------------------------------------------------------
      HERO
      ------------------------------------------------------------------*/
   header.full-page-image{height:100vh;width:100%;position:relative;overflow:hidden}
   header.full-page-image .overlay{position:absolute;top:0;left:0;width:100%;height:100%;background:rgba(0,0,0,.28);z-index:-1}
   header.full-page-image .bottom-overlay{
     position:absolute;
     bottom:0;
     left:0;
     width:100%;
     height:40%;
     background: linear-gradient(to top, rgba(0,0,0,.8), transparent);
     z-index:1;
     display: flex;
     align-items: flex-end;
     padding-bottom: 40px;
   }
   header.full-page-image .bottom-overlay h1 {
     margin: 0;
     color: white;
     font-family:"Avenir Next","Inter","Helvetica Neue",Arial,sans-serif;
     font-size:clamp(26px,4vw,44px);
     font-weight:700;
     line-height:1.2;
   }
   #bg-video{
     position:absolute;
     top:0;
     left:0;
     width:100%;
     height:100%;
     object-fit:cover;
     opacity:0;
     transition:opacity 1s ease;
     z-index:-1
    }
   
   /* ------------------------------------------------------------------
      MAIN ARTICLE BLOCKS
      ------------------------------------------------------------------*/
   .main-content{max-width:1000px;margin:0 auto;padding:0 24px;box-sizing:border-box}
   .main-content,.sub-hero-text,.authors,.quick-links,.section,.figure-caption{position:relative;z-index:2}
   .sub-hero-text{
     left:50%;
     width:min(1180px,calc(100vw - 48px));
     font-size:clamp(28px,4vw,48px);
     font-weight:600;
     line-height:1.2;
     margin:60px 0 30px;
     text-align:center;
     transform:translateX(-50%);
   }
   
   /* AUTHORS */
   .authors{font-family:"Avenir Next","Inter","Helvetica Neue",Arial,sans-serif;font-size:18px;color:#333;line-height:1.6;margin:0 0 20px;text-align:center}
   .authors span{display:block;font-size:14px;color:#555}
   .authors .affiliation{font-weight:600;font-size:18px;color:#111}
   .authors a{color:inherit;text-decoration:none}
   .authors a:hover{color:#B31B1B;text-decoration:none}

   /* PROJECT LINKS */
   .quick-links{
     display:flex;
     justify-content:center;
     align-items:center;
     gap:12px;
     flex-wrap:wrap;
     margin:8px 0 34px;
   }
   .quick-links .quick-btn{
     display:inline-flex;
     align-items:center;
     justify-content:center;
     gap:9px;
     min-width:132px;
     min-height:54px;
     padding:0 22px;
     box-sizing:border-box;
     background:#fdfaf4;
     color:#1f242b;
     font-family:"Avenir Next","Inter","Helvetica Neue",Arial,sans-serif;
     font-size:17px;
     font-weight:700;
     line-height:1;
     text-decoration:none;
     transition:transform .16s ease,color .16s ease,box-shadow .16s ease,background .16s ease;
   }
   .quick-links .quick-btn:hover{
     color:#B31B1B;
     background:#fffaf5;
     box-shadow:0 8px 20px rgba(0,0,0,.1);
     text-decoration:none;
     transform:translateY(-1px);
   }
   .quick-links .quick-icon-img{
     display:block;
     flex:0 0 auto;
     width:20px;
     height:20px;
     margin:0;
     max-width:none;
     border-radius:0;
     box-shadow:none;
     background:transparent;
     object-fit:contain;
   }
   .quick-links .quick-btn:hover .quick-icon-img{
     filter:brightness(0) saturate(100%) invert(16%) sepia(82%) saturate(3356%) hue-rotate(345deg) brightness(88%) contrast(96%);
   }
   .quick-label-stack{
     display:inline-flex;
     flex-direction:column;
     align-items:center;
     gap:3px;
   }
   .soon-label{
     color:#8b8b8b;
     font-size:10px;
     font-weight:800;
     letter-spacing:.14em;
   }
   .quick-links .quick-btn-disabled,
   .quick-links .quick-btn-disabled:hover,
   .quick-links .quick-btn-disabled:focus,
   .quick-links .quick-btn-disabled:active{
     color:#8c8c8c;
     background:#fdfaf4;
     box-shadow:none;
     cursor:default;
     opacity:.7;
     pointer-events:none;
     transform:none;
   }
   .quick-links .quick-btn-disabled .quick-icon-img,
   .quick-links .quick-btn-disabled:hover .quick-icon-img{
     filter:none;
     opacity:.72;
   }
   
   /* TAGLINES / SUBTITLES */
   .tagline{font-family:"Avenir Next","Inter","Helvetica Neue",Arial,sans-serif;font-size:24px;font-weight:600;color:#000;text-align:center;display:block;background:none;padding:0;margin:48px 0 24px}
   
   /* IMAGE DEFAULTS */
   img{display:block;width:100%;box-shadow:0 4px 12px rgba(0,0,0,.15);border-radius:8px;margin:0;box-sizing:border-box}
   .main-content>img{margin:0}
   .main-video-container{margin:8px 0 52px;text-align:left}
   .main-video-container video{display:block;width:100%;border-radius:8px;box-shadow:0 8px 24px rgba(0,0,0,.18);background:#111}
   .paper-figure{margin:0 0 30px}
   .paper-figure img{background:#fff}
   .paper-figure .figure-caption{padding:12px 0 0;margin-bottom:0}
   .teaser-figure{margin:24px 0 34px}
   .caption-green{color:#32cd32;font-weight:700}
   .caption-blue{color:#4169e1;font-weight:700}
   
   /* Experiment videos match the source gallery video sizing. */
   .gallery-video{flex:0 0 auto;height:260px;width:auto;border-radius:8px;box-shadow:0 4px 12px rgba(0,0,0,.15);background:#fdfaf4}
   .figure-caption {
      font-family:"Avenir Next","Inter","Helvetica Neue",Arial,sans-serif;
      font-size: 14px;
      color: #555;
      text-align: left;
      margin-top: 1px; /* Space above caption */
      margin-bottom: 36px; /* Space below caption, before next element */
      padding: 0;
    }
   
   .section{font-size:16px;line-height:1.7;margin:0 0 40px;text-align:left}
   .abstract-section{max-width:800px;margin-left:auto;margin-right:auto}
   .section p{margin:0 0 28px}
   .method-points{margin:-12px 0 28px;padding-left:24px}
   .method-points li{margin:0 0 12px}
   .task-block{width:fit-content;max-width:100%;margin:36px auto 52px}
   .task-block h2{font-family:"Avenir Next","Inter","Helvetica Neue",Arial,sans-serif;font-size:20px;font-weight:700;margin:0 0 16px;color:#111}
   .experiment-video-grid{display:grid;gap:14px;margin:0 0 14px}
   .sim-grid,.real-grid{grid-template-columns:repeat(2,max-content);justify-content:start}
   .triple-grid{grid-template-columns:repeat(3,1fr)}
   .triple-grid .experiment-video-card{width:100%}
   .triple-grid .gallery-video{width:100%;height:auto}
   .experiment-video-card{position:relative;width:max-content;max-width:100%;margin:0;display:flex;flex-direction:column;align-items:flex-start}
   .experiment-video-card::after{content:"3x";position:absolute;top:12px;right:12px;z-index:3;background:rgba(0,0,0,.72);color:#fff;border-radius:8px;padding:7px 10px;font-family:"Avenir Next","Inter","Helvetica Neue",Arial,sans-serif;font-size:13px;font-weight:400;line-height:1;letter-spacing:0;pointer-events:none}
   .experiment-video-card .gallery-video{display:block;width:auto;height:260px;max-width:100%;object-fit:cover}
   .source-video-card .gallery-video{outline:3px solid #5b3e96;outline-offset:3px;box-shadow:0 0 0 6px rgba(91,62,150,.12),0 4px 12px rgba(0,0,0,.15)}
   .target-video-card .gallery-video{}
   .video-label{position:absolute;top:12px;left:12px;z-index:3;color:#fff;border-radius:8px;padding:7px 10px;font-family:"Avenir Next","Inter","Helvetica Neue",Arial,sans-serif;font-size:13px;font-weight:700;line-height:1;pointer-events:none}
   .video-label-source{background:#5b3e96}
   .video-label-target{background:#c07830}
   .video-label-kite{background:#5b3e96}
   .video-label-baseline{background:rgba(0,0,0,.72)}
   .experiment-video-card.no-badge::after{display:none}
   .task-block>.figure-caption{margin-bottom:14px;margin-top:0}
   .acknowledgement-section{margin-bottom:70px}
   .bibtex-block{
     background:#f0ede7;
     border-radius:10px;
     padding:20px 24px;
     font-family:"Roboto Mono","SF Mono","Menlo",monospace;
     font-size:13px;
     line-height:1.6;
     color:#333;
     overflow-x:auto;
     white-space:pre;
     margin:0;
   }
   .math-inline{font-family:"Latin Modern Math","STIX Two Math","Cambria Math","Times New Roman",serif;font-style:italic;font-size:1.05em;line-height:0;white-space:nowrap}
   .math-inline sup{font-size:.72em;line-height:0;position:relative;top:-.42em;margin-left:.02em}
   /* FOOTER */
   .footer{font-size:14px;font-family:"Avenir Next","Inter","Helvetica Neue",Arial,sans-serif;color:#666;margin:80px 0 0;border-top:1px solid #ccc;padding:30px;text-align:center}
   
   /* Scroll indicator arrow */
   .scroll-indicator {
     position: absolute;
     bottom: 30px;
     right: 30px;
     z-index: 10;
     color: white;
     font-size: 64px;
     animation: bounce 2s infinite;
     cursor: pointer;
     opacity: 0.8;
     transition: opacity 0.3s ease;
   }

   .scroll-indicator:hover {
     opacity: 1;
   }

   @keyframes bounce {
     0%, 20%, 50%, 80%, 100% {
       transform: translateY(0);
     }
     40% {
       transform: translateY(-10px);
     }
     60% {
       transform: translateY(-5px);
     }
   }

   @media(max-width:980px){
     .task-block{width:min(100%,620px)}
     .sim-grid,.real-grid,.triple-grid{grid-template-columns:1fr}
     .experiment-video-card{width:100%}
     .experiment-video-card .gallery-video{width:100%;height:auto;aspect-ratio:16/9}
     .experiment-video-card .video-label{font-size:12px}
   }

   @media(max-width:720px){
     .main-content{padding:0 18px}
     .sub-hero-text{left:auto;width:auto;margin:42px 0 34px;transform:none}
     .quick-links{gap:10px;margin:4px 0 34px}
     .quick-links .quick-btn{min-width:128px;min-height:50px;padding:0 18px;font-size:16px}
     .section{font-size:17px;line-height:1.65}
     .experiment-video-card::after{top:10px;right:10px;font-size:12px;border-radius:7px;padding:6px 8px}
     .video-label{top:10px;left:10px;font-size:12px;border-radius:7px;padding:6px 8px}
     .tagline{font-size:20px}
     .figure-caption{padding:0;font-size:13px}
     .analysis-grid{grid-template-columns:1fr;gap:18px}
     .analysis-card-text{font-size:14px}
   }

   /* ------------------------------------------------------------------
      ANALYSIS SECTION — card grid
      ------------------------------------------------------------------*/
   .analysis-grid{
     display:grid;
     grid-template-columns:repeat(3,1fr);
     gap:24px;
     margin:28px 0 12px;
   }
   .analysis-card{
     background:#f0ede7;
     border-radius:14px;
     padding:22px;
     display:flex;
     flex-direction:column;
   }
   .analysis-card-figure{
     width:100%;
     margin-bottom:16px;
   }
   .analysis-card-figure img{
     width:100%;
     border-radius:6px;
     box-shadow:none;
     background:transparent;
   }
   .analysis-card-table{
     margin-bottom:14px;
   }
   .analysis-card-table table{
     width:100%;
     border-collapse:collapse;
     font-family:"Avenir Next","Inter","Helvetica Neue",Arial,sans-serif;
     font-size:13px;
   }
   .analysis-card-table thead th{
     text-align:left;
     font-weight:700;
     padding:5px 8px;
     border-bottom:2px solid #5b3e96;
     color:#333;
   }
   .analysis-card-table thead th:last-child{
     text-align:right;
   }
   .analysis-card-table tbody td{
     padding:4px 8px;
     border-bottom:1px solid #d5d0c8;
     color:#444;
   }
   .analysis-card-table tbody td:last-child{
     text-align:right;
     font-weight:700;
     color:#5b3e96;
   }
   .analysis-card-text{
     font-size:15px;
     line-height:1.55;
     color:#333;
     margin-top:auto;
     margin-bottom:0;
   }
   .analysis-card-text b{
     color:#111;
   }

   @media(max-width:980px){
     .analysis-grid{grid-template-columns:1fr;gap:18px}
   }