:root{
  --navy:#0a192f;
  --light-navy:#112240;
  --lightest-navy:#233554;

  --slate:#8892b0;
  --light-slate:#a8b2d1;
  --lightest-slate:#ccd6f6;
  --white:#e6f1ff;

  --accent:#64ffda;

  --chip-bg:#173441;
  --card-hover:rgba(255,255,255,0.04);
  --card-border:rgba(100,255,218,0.14);
}

html{overflow-y:auto;}
html,body{min-height:100%;}
body{
  margin:0;
  background: radial-gradient(800px 400px at 20% 10%, rgba(100,255,218,0.06), transparent 60%),
              linear-gradient(180deg, #0b1224 0%, var(--navy) 35%, #081226 100%);
  color:var(--slate);
  overflow-y: auto;
}

.skip-link{
  position:absolute;
  left:-999px;
  top:12px;
  background:var(--lightest-navy);
  color:var(--white);
  padding:8px 12px;
  border-radius:8px;
  text-decoration:none;
}
.skip-link:focus{left:12px;}

.page{
  max-width: 100vw;
  margin: 0;
  padding: 90px 84px;
  display:flex;
  gap: 2%;
  height: 100vh;
}

.left{width:40%;}
.left-inner{
  position: sticky;
  top: 90px;
  display:flex;
  flex-direction:column;
  min-height: calc(100vh - 180px);
}

.right{
  flex:1;
  height: calc(100vh - 180px);
  overflow-y:auto;
  scroll-behavior:smooth;
  padding-right: 10px;
}

.name{color:var(--white); font-size:56px; font-weight:800; margin:0;}
.role{color:var(--lightest-slate); font-size:18px; font-weight:600; margin:14px 0 0;}
.tagline{
  margin:18px 0 0;
  font-size:16px;
  line-height:1.75;
  /* Keep tagline in a single line across OS font/rendering differences */
  white-space: nowrap;
  max-width: none;
  /* Allow slight shrink if needed while staying readable */
  font-size: clamp(14px, 1.05vw, 16px);
}

.section-nav{margin-top:48px; display:flex; flex-direction:column; gap:14px;}
.nav-item{
  display:flex;
  align-items:center;
  gap:14px;
  text-decoration:none;
  color:var(--slate);
  letter-spacing:0.12em;
  font-size:12px;
  font-weight:600;
  transition: all 180ms ease;
}
.nav-line{
  height:1px;
  width:26px;
  background:rgba(204,214,246,0.35);
  transition: all 180ms ease;
}
.nav-item:hover{color:var(--lightest-slate);}
.nav-item:hover .nav-line{width:34px; background:rgba(204,214,246,0.55);}

.nav-item.is-active{
  color: var(--white);
  font-size:14px;
}
.nav-item.is-active .nav-line{
  width:56px;
  background: rgba(230,241,255,0.8);
}

.social{margin-top:auto; display:flex; gap:14px;}
.social-link{
  color:rgba(204,214,246,0.65);
  text-decoration:none;
  transition: all 180ms ease;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 8px;
  border-radius: 8px;
}
.social-link:hover{
  color:var(--white);
  background:rgba(255,255,255,0.05);
}
.social-link svg{
  width: 20px;
  height: 20px;
  transition: all 180ms ease;
}
.social-link:hover svg{
  transform: translateY(-1px);
}

.section{
  padding: 8px 0 78px;
  /* Keep anchor navigation from hiding section headings under top overlay */
  scroll-margin-top: 112px;
}
.section-title{
  color:var(--lightest-slate);
  font-size:16px;
  font-weight:700;
  margin: 0 0 18px;
}
/* Homepage: About / Experience / Projects / Articles in the main column only */
main.right .section-title{
  font-size: 20px;
  line-height: 1.3;
}
.p{margin:0 0 14px; line-height:1.8;}
.a{color:var(--accent); text-decoration:none;}
.a:hover{text-decoration:underline;}

.card-row{
  display:flex;
  gap:22px;
  padding:18px 18px;
  border-radius:14px;
  transition: all 180ms ease;
}
.card-row:hover{
  background:var(--card-hover);
  outline: 1px solid var(--card-border);
}
.card-left{
  width:160px;
  font-size:12px;
  letter-spacing:0.08em;
  color:rgba(168,178,209,0.75);
}
.thumb{width:180px; flex:0 0 180px;}
.thumb img{
  width:180px; height:96px; border-radius:12px; object-fit:cover;
}
.card-right{flex:1;}
.card-title{
  color:var(--white);
  font-weight:700;
  text-decoration:none;
  display:inline-block;
  margin-bottom:10px;
}
.card-title:hover{color:var(--accent);}
.ext{font-size:0.95em; opacity:0.9;}

.project-highlights{
  margin:0 0 14px;
  padding-left:18px;
  line-height:1.8;
}

.project-highlights li{
  margin-bottom:4px;
}

.experience-list{
  margin:0 0 14px;
  padding-left:18px;
  line-height:1.8;
}

.experience-list li{
  margin-bottom:6px;
}

.tags{display:flex; flex-wrap:wrap; gap:10px; margin-top:10px;}
.tag{
  background:var(--chip-bg);
  color:var(--accent);
  padding:6px 10px;
  border-radius:999px;
  font-size:12px;
  font-weight:600;
}

.section-cta{padding:22px 0 0; text-align:center;}
.cta-link{
  color:var(--lightest-slate);
  text-decoration:none;
  font-weight:600;
}
.cta-link:hover{color:var(--accent);}

.writing-row{
  display:flex;
  gap:18px;
  align-items:center;
  padding:14px 0;
}
.writing-thumb{
  width:144px;
  height:81px;
  border-radius:12px;
  object-fit:cover;
}
.writing-year{
  font-size:12px;
  letter-spacing:0.08em;
  color:rgba(168,178,209,0.75);
  margin-bottom:6px;
}
.footer-note{
  margin-top:40px;
  font-size:13px;
  color:rgba(168,178,209,0.75);
}

/* Archive page */
.archive-page{
  min-height:100vh;
  padding: 90px 84px;
  max-width: 100vw;
  margin: 0;
}
.archive-wrap{
  max-width: none;
  margin: 0;
}

.archive-back{
  display:inline-block;
  color: var(--accent);
  text-decoration:none;
  font-weight:600;
  margin-bottom: 18px;
}
.archive-back:hover{text-decoration:underline;}

.archive-title{
  color: var(--white);
  font-size: 52px;
  font-weight: 800;
  margin: 0 0 28px;
}

.archive-table{
  margin-top: 30px;
}

.archive-head{
  display:grid;
  grid-template-columns: 80px 2.2fr 1.2fr 2.2fr 1.2fr;
  gap: 18px;
  padding: 12px 0;
  color: rgba(168,178,209,0.75);
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: none;
  border-bottom: 1px solid rgba(255,255,255,0.08);
}

.archive-row{
  display:grid;
  grid-template-columns: 80px 2.2fr 1.2fr 2.2fr 1.2fr;
  gap: 18px;
  padding: 16px 0;
  border-bottom: 1px solid rgba(255,255,255,0.06);
  align-items:start;
}

.archive-year{
  color: rgba(168,178,209,0.75);
  font-size: 12px;
  letter-spacing: 0.08em;
  padding-top: 2px;
}

.archive-project-name{
  color: var(--white);
  font-weight: 700;
}

.archive-madeat{
  color: var(--slate);
}

.archive-builtwith{
  display:flex;
  flex-wrap:wrap;
  gap: 10px;
}

.archive-link{
  text-align:left;
}

.archive-a{
  color: var(--accent);
  text-decoration:none;
  font-weight:600;
}
.archive-a:hover{text-decoration:underline;}

.project-detail-shell{
  width: 100%;
  margin: 0;
  padding: 90px 84px 56px;
}

.project-detail-page{
  max-width: 1120px;
  margin: 0 auto;
}

.project-detail-copy{
  max-width: 760px;
  margin: 0 0 18px;
  color: var(--slate);
  line-height: 1.8;
}

.project-detail-highlights{
  max-width: 760px;
  margin-bottom: 20px;
}

.project-detail-tags{
  margin-bottom: 28px;
}

.project-gallery{
  max-width: 1040px;
  margin: 0 auto;
  padding: 8px 0 24px;
}

.project-gallery-item{
  display: block;
  margin: 2rem 0;
}

.project-gallery-image{
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  margin: 0 auto;
  object-fit: contain;
  border-radius: 16px;
  border: 1px solid rgba(255,255,255,0.08);
  box-shadow: 0 16px 40px rgba(2, 12, 27, 0.28);
}

.writing-archive-head,
.writing-archive-row{
  grid-template-columns: 80px 2fr 1.2fr;
}
.writing-archive-title{
  color: var(--white);
  font-weight: 700;
}

.card-link{
  cursor: pointer;
}
.card-row:hover{
  background: rgba(17, 34, 64, 0.55);
  outline: 1px solid rgba(100, 255, 218, 0.10);
}
.card-row:hover .card-title{
  color: var(--accent);
}
.card-row:focus{
  outline: 1px solid rgba(100, 255, 218, 0.22);
  background: rgba(17, 34, 64, 0.55);
}
.card-row a:focus{
  outline: 2px solid rgba(100, 255, 218, 0.6);
  outline-offset: 2px;
}

@media (max-width: 1100px){
  .page{
    padding: 70px 44px;
    gap: 2%;
  }
  .project-detail-shell{
    padding: 70px 44px 48px;
  }
  .left{width: 40%;}
  .name{font-size: 48px;}
}

@media (max-width: 900px){
  .page{
    display:block;
    height: auto;
    padding: 48px 24px;
    max-width: none;
    margin: 0;
  }
  .left{
    width:auto;
  }
  .left-inner{
    position: static;
    min-height: auto;
  }
  .right{
    height: auto;
    overflow: visible;
    padding-right: 0;
  }
  .section-nav{
    margin-top: 28px;
    display:flex;
    flex-direction: column;
    gap: 14px;
  }
  .nav-item{ font-size:12px; }
  .nav-line{ width:22px; }
  .nav-item.is-active{ font-size:13px; }
  .nav-item.is-active .nav-line{ width:44px; }

  .card-row{
    padding: 14px 12px;
    gap: 16px;
  }
  .card-left{
    width: 130px;
  }
  .thumb{
    width: 150px;
    flex: 0 0 150px;
  }
  .thumb img{
    width: 150px;
    height: 80px;
  }
  .writing-thumb{
    width: 132px;
    height: 74px;
  }
  .project-detail-shell{
    padding: 48px 24px 40px;
  }
  .project-gallery{
    padding-bottom: 12px;
  }
}

/* Treat touch tablets like mobile layout without affecting desktop */
@media (pointer: coarse) and (max-width: 1100px){
  .page{
    display:block;
    height: auto;
  }
  .left{ width: auto; }
  .left-inner{ position: static; min-height: auto; }
  .right{ height: auto; overflow: visible; padding-right: 0; }
}

@media (max-width: 600px){
  .name{font-size: 40px;}
  .role{font-size: 16px;}
  .tagline{font-size: 15px;}

  .card-row{
    flex-direction: column;
    gap: 12px;
  }
  .card-left{
    width:auto;
  }
  .thumb{
    width:auto;
    flex: 0 0 auto;
  }
  .thumb img{
    width: 100%;
    height: auto;
    aspect-ratio: 15 / 8;
  }

  .writing-row{
    flex-direction: column;
    align-items: flex-start;
  }
  .writing-thumb{
    width: 100%;
    height: auto;
    aspect-ratio: 16 / 9;
  }
}

@media (max-width: 1023px){
  .section-nav{
    margin-top: 32px;
    gap: 18px;
  }
  .nav-item{
    gap: 16px;
  }
  .social{
    margin-top: 28px;
    gap: 18px;
  }
}

@media (max-width: 600px){
  .section-nav{
    margin-top: 26px;
    gap: 16px;
  }
  .social{
    margin-top: 22px;
    gap: 16px;
  }
  .social-link{
    padding: 10px;
    border-radius: 10px;
    min-width: 44px;
    min-height: 44px;
  }
}

@media (min-width: 901px){
  .right{
    height: calc(100vh - 180px);
    overflow-y: auto;
  }
}

@media (max-width: 1100px){
  .archive-page{
    padding: 70px 44px;
  }
}

@media (max-width: 900px){
  .archive-page{
    padding: 48px 24px;
  }
}

/* Project gallery viewer (dedicated album page, e.g. LogInsight) */
.project-gallery-shell{
  width: 100%;
  margin: 0;
  padding: 90px 84px 56px;
}

.project-gallery-page{
  max-width: 1040px;
  margin: 0 auto;
}

.project-gallery-viewer{
  margin-top: 24px;
}

.project-gallery-main-wrap{
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 16px;
}

.project-gallery-btn{
  flex-shrink: 0;
  width: 48px;
  height: 48px;
  border: 1px solid rgba(255,255,255,0.15);
  border-radius: 12px;
  background: var(--light-navy);
  color: var(--lightest-slate);
  font-size: 24px;
  line-height: 1;
  cursor: pointer;
  transition: background 180ms ease, border-color 180ms ease, color 180ms ease;
}

.project-gallery-btn:hover{
  background: var(--lightest-navy);
  border-color: rgba(100,255,218,0.3);
  color: var(--white);
}

.project-gallery-btn:focus{
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.project-gallery-main{
  flex: 1;
  min-width: 0;
  display: flex;
  justify-content: center;
  align-items: center;
  background: rgba(17, 34, 64, 0.4);
  border-radius: 16px;
  border: 1px solid rgba(255,255,255,0.08);
  padding: 24px;
}

.project-gallery-slide{
  display: none;
  margin: 0;
  justify-content: center;
  align-items: center;
}

.project-gallery-slide[data-active]{
  display: flex;
}

.project-gallery-main-img{
  max-width: 100%;
  width: auto;
  height: auto;
  max-height: min(78vh, 720px);
  object-fit: contain;
  border-radius: 12px;
  box-shadow: 0 16px 40px rgba(2, 12, 27, 0.35);
}

.project-gallery-counter{
  margin: 0 0 20px;
  font-size: 14px;
  color: var(--slate);
  text-align: center;
}

.project-gallery-thumbs{
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px;
}

.project-gallery-thumb{
  padding: 0;
  border: 2px solid transparent;
  border-radius: 10px;
  background: none;
  cursor: pointer;
  overflow: hidden;
  transition: border-color 180ms ease, opacity 180ms ease;
}

.project-gallery-thumb img{
  display: block;
  width: 120px;
  height: 68px;
  object-fit: cover;
  border-radius: 8px;
}

.project-gallery-thumb:hover{
  opacity: 0.9;
}

.project-gallery-thumb.is-active{
  border-color: var(--accent);
}

.project-gallery-thumb:focus{
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

@media (max-width: 900px){
  .project-gallery-shell{
    padding: 48px 24px 40px;
  }
  .project-gallery-main-wrap{
    gap: 10px;
  }
  .project-gallery-btn{
    width: 44px;
    height: 44px;
    font-size: 20px;
  }
  .project-gallery-main{
    padding: 16px;
  }
  .project-gallery-main-img{
    max-height: min(70vh, 560px);
  }
  .project-gallery-thumb img{
    width: 80px;
    height: 45px;
  }
}

/* Project lightbox (modal gallery on same page) */
.lightbox{
  position: fixed;
  inset: 0;
  z-index: 9999;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  box-sizing: border-box;
}
.lightbox[hidden]{ display: none !important; }

.lightbox-overlay{
  position: absolute;
  inset: 0;
  background: rgba(10, 25, 47, 0.92);
  cursor: pointer;
}

.lightbox-inner{
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  gap: 16px;
  max-width: 100%;
  max-height: 100%;
  width: 100%;
}

.lightbox-close-btn{
  position: absolute;
  top: -48px;
  right: 0;
  width: 44px;
  height: 44px;
  border: none;
  border-radius: 12px;
  background: var(--light-navy);
  color: var(--lightest-slate);
  font-size: 28px;
  line-height: 1;
  cursor: pointer;
  transition: background 180ms ease, color 180ms ease;
}
.lightbox-close-btn:hover{
  background: var(--lightest-navy);
  color: var(--white);
}

.lightbox-prev,
.lightbox-next{
  flex-shrink: 0;
  width: 48px;
  height: 48px;
  border: 1px solid rgba(255,255,255,0.2);
  border-radius: 12px;
  background: var(--light-navy);
  color: var(--lightest-slate);
  font-size: 32px;
  line-height: 1;
  cursor: pointer;
  transition: background 180ms ease, border-color 180ms ease, color 180ms ease;
}
.lightbox-prev:hover,
.lightbox-next:hover{
  background: var(--lightest-navy);
  border-color: rgba(100,255,218,0.35);
  color: var(--white);
}

.lightbox-content{
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
}

.lightbox-image-wrap{
  display: flex;
  align-items: center;
  justify-content: center;
  max-width: 100%;
  max-height: calc(100vh - 180px);
  min-height: 120px;
}

.lightbox-main-img{
  max-width: 100%;
  max-height: calc(100vh - 180px);
  width: auto;
  height: auto;
  object-fit: contain;
  border-radius: 12px;
  box-shadow: 0 20px 50px rgba(0,0,0,0.4);
}

.lightbox-counter{
  margin: 0;
  font-size: 14px;
  color: var(--slate);
}

.lightbox-thumbs{
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 8px;
  max-width: 100%;
}

.lightbox-thumb{
  padding: 0;
  border: 2px solid transparent;
  border-radius: 8px;
  background: none;
  cursor: pointer;
  overflow: hidden;
  transition: border-color 180ms ease, opacity 180ms ease;
}
.lightbox-thumb img{
  display: block;
  width: 80px;
  height: 45px;
  object-fit: cover;
  border-radius: 6px;
}
.lightbox-thumb:hover{ opacity: 0.9; }
.lightbox-thumb.is-active{ border-color: var(--accent); }
.lightbox-thumb:focus{ outline: 2px solid var(--accent); outline-offset: 2px; }

@media (max-width: 600px){
  .lightbox{ padding: 12px; }
  .lightbox-close-btn{ top: -40px; right: 4px; width: 40px; height: 40px; font-size: 24px; }
  .lightbox-prev, .lightbox-next{ width: 44px; height: 44px; font-size: 28px; }
  .lightbox-image-wrap{ max-height: calc(100vh - 200px); }
  .lightbox-main-img{ max-height: calc(100vh - 200px); }
  .lightbox-thumb img{ width: 64px; height: 36px; }
}

/* --- Article #1 timeline (interactive) --- */
:root{
  --article-tl-line: rgba(100, 255, 218, 0.45);
  --article-tl-connector: rgba(232, 140, 190, 0.6);
  --article-tl-title-bg: #152a4a;
  --article-tl-title-border: rgba(100, 255, 218, 0.22);
  --article-tl-image-bg: rgba(30, 68, 52, 0.92);
  --article-tl-image-border: rgba(100, 220, 160, 0.45);
  /* Description popup: same visual language as main page cards */
  --article-tl-desc-bg: rgba(17, 34, 64, 0.82);
  --article-tl-desc-border: var(--card-border);
  --article-tl-desc-shadow: 0 10px 40px rgba(0, 0, 0, 0.35);
}

/* Long H1 on timeline page: ~20% smaller than global .archive-title (52px) */
.article-timeline-page .archive-title{
  font-size: calc(52px * 0.8);
}

.article-timeline-nav-card{
  padding: 16px 18px;
  margin-bottom: 22px;
  border-radius: 14px;
  transition: background 180ms ease, outline 180ms ease;
  outline: 1px solid transparent;
}
.article-timeline-nav-card:hover,
.article-timeline-nav-card:focus-within{
  background: var(--card-hover);
  outline: 1px solid var(--card-border);
}
.article-timeline-nav-card__link{
  display: flex;
  flex-direction: column;
  gap: 4px;
  width: 100%;
  text-decoration: none;
}
.article-timeline-nav-card__title{
  color: var(--white);
  font-weight: 700;
  font-size: 18px;
}
.article-timeline-nav-card__link:hover .article-timeline-nav-card__title{
  color: var(--accent);
}
.article-timeline-nav-card__link:focus{
  outline: none;
}
.article-timeline-nav-card__link:focus-visible{
  outline: 2px solid rgba(100, 255, 218, 0.6);
  outline-offset: 2px;
  border-radius: 4px;
}

.articles-archive-feature{
  margin: 0 0 28px;
  font-size: 15px;
}

/* Match on-site article titles to writing list (white), not teal .archive-a */
.articles-archive-feature .archive-a{
  color: var(--white);
  font-weight: 700;
}
.articles-archive-feature .archive-a:hover{
  color: var(--accent);
  text-decoration: none;
}

.article-timeline{
  position: relative;
  max-width: 900px;
  margin: 0 auto;
  padding: 12px 0 72px;
  overflow-x: visible;
  /* Horizontal push for hover satellites: away from center line, toward outer edge */
  --article-tl-satellite-shift: clamp(52px, 8vw, 80px);
}

.article-timeline__line{
  position: absolute;
  left: 50%;
  top: 0;
  bottom: 0;
  width: 2px;
  transform: translateX(-50%);
  background: linear-gradient(
    180deg,
    transparent,
    var(--article-tl-line) 8%,
    var(--article-tl-line) 92%,
    transparent
  );
  border-radius: 2px;
  pointer-events: none;
}

.article-timeline__rows{
  display: flex;
  flex-direction: column;
  gap: 0;
  overflow-x: visible;
}

.article-timeline__row{
  position: relative;
  width: calc(50% - 26px);
  /* Prior compaction cut ~46px from row margin at the old cap; this applies a second pass of that size */
  margin-bottom: -36px;
  z-index: 0;
  transition: z-index 0s linear 0.15s;
}
.article-timeline__row:where(:hover, :focus-within){
  z-index: 3;
  transition-delay: 0s;
}

.article-timeline__row--left{
  align-self: flex-start;
  margin-right: calc(50% + 26px);
  display: flex;
  justify-content: flex-start;
  text-align: left;
  overflow-x: visible;
  --left-line-top: 80px;
  --left-line-start: 100px;
  /* Per-row override via inline style; used by horizontal connector + dot */
  --connector-color: var(--article-tl-line);
}

.article-timeline__row--right{
  align-self: flex-end;
  /* +10px margin / −10px width: shifts connector + titles right so lines meet the spine instead of crossing it */
  margin-left: calc(50% + 26px + 10px);
  width: calc(50% - 26px - 10px);
  display: flex;
  justify-content: flex-start;
  text-align: left;
  --right-group-shift: 176px;
  --connector-color: var(--article-tl-connector);
}

/* Single interactive region: padding reserves space so satellites stay inside the hover/focus box */
.article-timeline__item{
  position: relative;
  isolation: isolate;
  box-sizing: border-box;
  max-width: min(340px, 100%);
  min-height: 160px;
  padding: 50px 12px 86px;
  margin: 0;
  display: flex;
  flex-direction: column;
  align-items: stretch;
  outline: none;
  border-radius: 16px;
}

.article-timeline__row--left .article-timeline__item{
  align-items: flex-start;
}

.article-timeline__row--right .article-timeline__item{
  align-items: flex-start;
}

.article-timeline__item:focus-visible{
  outline: 2px solid var(--accent);
  outline-offset: 4px;
}

.article-timeline__date{
  position: relative;
  z-index: 2;
  margin: 0 0 10px;
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 0.12em;
  color: var(--lightest-slate);
  text-align: center;
  width: 100%;
}

.article-timeline__heading-group{
  display: flex;
  flex-direction: column;
  width: 100%;
  max-width: 100%;
  position: relative;
  z-index: 2;
}

.article-timeline__row--left .article-timeline__heading-group{
  align-items: flex-end;
}

.article-timeline__row--right .article-timeline__heading-group{
  align-items: flex-start;
}

.article-timeline__title-cluster{
  position: relative;
  z-index: 2;
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  max-width: 100%;
}

.article-timeline__row--left .article-timeline__title-cluster{
  align-items: flex-start;
  margin-left: calc(var(--left-line-start) - 100px);
  margin-top: 16px;
}

.article-timeline__row--right .article-timeline__title-cluster{
  align-items: center;
  margin-left: var(--right-group-shift);
}

.article-timeline__connector{
  position: absolute;
  top: 50%;
  width: 36px;
  height: 2px;
  background: var(--connector-color, var(--article-tl-connector));
  pointer-events: none;
  z-index: 0;
}

/* Left: row-level line only; no title-cluster connector in markup */
.article-timeline__row--left .article-timeline__connector{
  display: none;
}

.article-timeline__row--right .article-timeline__connector{
  right: 100%;
  margin-right: 8px;
  width: calc(36px + var(--right-group-shift));
  transform: translate(-5px, -50%);
}

.article-timeline__row--right .article-timeline__connector::after{
  content: "";
  position: absolute;
  right: 0;
  top: 50%;
  width: 6px;
  height: 6px;
  border-radius: 999px;
  background: var(--connector-color, var(--article-tl-connector));
  transform: translate(50%, -50%);
}

.article-timeline__title-card{
  position: relative;
  z-index: 2;
  padding: 14px 22px;
  border-radius: 12px;
  background: var(--article-tl-title-bg);
  border: 1px solid var(--article-tl-title-border);
  box-shadow: 0 8px 28px rgba(0, 0, 0, 0.35);
  min-width: min(220px, 72vw);
}

.article-timeline__title{
  margin: 0;
  color: var(--white);
  font-size: 17px;
  font-weight: 700;
  line-height: 1.25;
}

/* Left: desktop year at spine; mobile-only date above title on small screens */
.article-timeline__date--left-mobile-only{
  display: none;
}

.article-timeline__date--right-mobile-only{
  display: none;
}

.article-timeline__row--left .article-timeline__title-card{
  padding: 0;
  min-width: 0;
  background: none;
  border: none;
  border-radius: 0;
  box-shadow: none;
  margin-right: 28px;
}

/* Left placeholders only: extra offset toward page edge (Puppet keeps default alignment) */
.article-timeline__row--left.article-timeline__row--placeholder .article-timeline__title-card{
  transform: translateX(-60px);
}

.article-timeline__row--right .article-timeline__title-card{
  padding: 0;
  min-width: 0;
  background: none;
  border: none;
  border-radius: 0;
  box-shadow: none;
  margin-left: 28px;
}

.article-timeline__row--right .article-timeline__title{
  color: var(--white);
  font-size: 20px;
  font-weight: 600;
  line-height: 1.35;
  letter-spacing: -0.01em;
}

.article-timeline__row--left .article-timeline__title{
  color: var(--white);
  font-size: 20px;
  font-weight: 600;
  line-height: 1.35;
  letter-spacing: -0.01em;
}

/* Optional per-row title nudge (e.g. TeamCity); does not affect spine year or other milestones */
.article-timeline__row--left.article-timeline__row--nudge-title-left .article-timeline__title-card{
  transform: translateX(-20px);
}

/* Double the TeamCity nudge: legacy class, kept for reference */
.article-timeline__row--left.article-timeline__row--nudge-title-left-2x .article-timeline__title-card{
  transform: translateX(-40px);
}

/* Google App Engine + Windows Azure: large left shift so long titles clear the connector */
.article-timeline__row--left.article-timeline__row--nudge-title-left-3x .article-timeline__title-card{
  transform: translateX(-100px);
}

/* Row-level connector: reaches center spine (row width calc(50% − 26px) → right: −26px) */
.article-timeline__row--left > .article-timeline__left-line{
  position: absolute;
  top: var(--left-line-top);
  left: var(--left-line-start);
  right: -26px;
  height: 2px;
  background: var(--connector-color, var(--article-tl-line));
  opacity: 0.9;
  border-radius: 1px;
  pointer-events: none;
  z-index: 1;
}

.article-timeline__row--left > .article-timeline__left-line::before{
  content: "";
  position: absolute;
  left: 0;
  top: 50%;
  width: 6px;
  height: 6px;
  border-radius: 999px;
  background: var(--connector-color, var(--article-tl-line));
  transform: translate(-50%, -50%);
}

.article-timeline__row--left > .article-timeline__date--spine{
  position: absolute;
  top: calc(var(--left-line-top) - 18px);
  right: -14px;
  transform: translateY(calc(-100% + 11px));
  z-index: 2;
  margin: 0;
  padding: 0;
  font-size: 15px;
  font-weight: 700;
  line-height: 1;
  letter-spacing: 0.12em;
  color: var(--lightest-slate);
  white-space: nowrap;
  text-align: right;
  pointer-events: none;
}

.article-timeline__row--right > .article-timeline__date--spine-right{
  position: absolute;
  top: 62px;
  left: -10px;
  transform: translate(-10px, calc(-100% - 5px));
  z-index: 2;
  margin: 0;
  padding: 0;
  font-size: 15px;
  font-weight: 700;
  line-height: 1;
  letter-spacing: 0.12em;
  color: var(--lightest-slate);
  white-space: nowrap;
  text-align: left;
  pointer-events: none;
}

/* Satellites: same offset parent (.article-timeline__item); opacity keeps layout stable */
.article-timeline__image-panel,
.article-timeline__desc-panel{
  position: absolute;
  z-index: 3;
  border-radius: 10px;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transform: translateY(6px);
  transition:
    opacity 0.22s ease,
    visibility 0.22s ease,
    transform 0.22s ease;
}

/* Image cap only — never share the 248px limit with the text card (it made the popup stay narrow/tall). */
.article-timeline__image-panel{
  top: 22px;
  max-width: min(248px, calc(100vw - 80px));
  padding: 8px;
  background: var(--article-tl-image-bg);
  border: 1px solid var(--article-tl-image-border);
  transform: translateY(-6px);
}

.article-timeline__image-panel img{
  display: block;
  width: 120px;
  height: auto;
  aspect-ratio: 120 / 84;
  object-fit: cover;
  border-radius: 6px;
}

/* Left milestones: satellites shift further left (negative X from title stack) */
.article-timeline__row--left .article-timeline__image-panel{
  left: calc(12px - var(--article-tl-satellite-shift));
  right: auto;
}

/* Left image: show the full original bitmap, scaled down (no crop) */
.article-timeline__row--left .article-timeline__image-panel{
  top: -98px;
  padding: 0;
  background: transparent;
  border: none;
  border-radius: 0;
  overflow: visible;
  max-width: min(400px, calc(100vw - 100px));
}

.article-timeline__row--left .article-timeline__image-panel img{
  /* Remove fixed sizing from the base rules so we preserve the intrinsic aspect ratio */
  width: auto;
  height: auto;
  aspect-ratio: auto;
  object-fit: contain;
  object-position: center center;
  border-radius: 0;
  filter: none;
  /*
    Testing ~50% of intrinsic (800×283): room for full bitmap with `contain`, no crop.
  */
  max-width: min(400px, calc(100vw - 120px));
  max-height: 142px;
}

/* Right milestones: satellites + same bare image treatment as left (mirrored horizontal) */
.article-timeline__row--right .article-timeline__image-panel{
  right: calc(12px - var(--article-tl-satellite-shift) - var(--right-group-shift));
  left: auto;
  top: -98px;
  padding: 0;
  background: transparent;
  border: none;
  border-radius: 0;
  overflow: visible;
  max-width: min(400px, calc(100vw - 100px));
}

.article-timeline__row--right .article-timeline__image-panel img{
  width: auto;
  height: auto;
  aspect-ratio: auto;
  object-fit: contain;
  object-position: center center;
  border-radius: 0;
  filter: none;
  max-width: min(400px, calc(100vw - 120px));
  max-height: 142px;
}

.article-timeline__desc-panel{
  top: 146px;
  padding: 12px 22px;
  box-sizing: border-box;
  /* Explicit width so abs. positioning doesn’t shrink-wrap to a narrow column */
  width: min(480px, calc(100vw - 88px));
  max-width: min(480px, calc(100vw - 88px));
  border-radius: 14px;
  background: var(--article-tl-desc-bg);
  border: 1px solid var(--article-tl-desc-border);
  box-shadow: var(--article-tl-desc-shadow);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  /* Same reading alignment for left and right milestones (LTR, flush left) */
  direction: ltr;
  text-align: left;
}

.article-timeline__row--left .article-timeline__desc-panel{
  left: calc(12px - var(--article-tl-satellite-shift));
  right: auto;
}

.article-timeline__row--right .article-timeline__desc-panel{
  right: calc(12px - var(--article-tl-satellite-shift) - 36px - var(--right-group-shift));
  left: auto;
}

.article-timeline__desc{
  margin: 0;
  max-width: none;
  font-size: 15px;
  line-height: 1.65;
  color: var(--slate);
}

.article-timeline__item:hover .article-timeline__image-panel,
.article-timeline__item:focus-within .article-timeline__image-panel,
.article-timeline__item:hover .article-timeline__desc-panel,
.article-timeline__item:focus-within .article-timeline__desc-panel{
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  transform: translateY(0);
}

@media (max-width: 767px){
  .article-timeline{
    --article-tl-satellite-shift: 0px;
  }

  .article-timeline__line{
    left: 14px;
    transform: none;
  }

  .article-timeline__row,
  .article-timeline__row--left,
  .article-timeline__row--right{
    width: 100%;
    max-width: none;
    margin-left: 0;
    margin-right: 0;
    justify-content: flex-start;
    text-align: left;
  }

  .article-timeline__row--left .article-timeline__item,
  .article-timeline__row--right .article-timeline__item{
    align-items: flex-start;
    max-width: none;
    padding-left: 36px;
    padding-right: 8px;
  }

  .article-timeline__row--left .article-timeline__connector,
  .article-timeline__row--right .article-timeline__connector{
    display: none;
  }

  .article-timeline__row--left .article-timeline__image-panel,
  .article-timeline__row--right .article-timeline__image-panel{
    left: 36px;
    right: auto;
  }

  .article-timeline__row--left .article-timeline__desc-panel,
  .article-timeline__row--right .article-timeline__desc-panel{
    left: 36px;
    right: 16px;
    width: auto;
    max-width: none;
    min-width: 0;
    text-align: left;
  }

  .article-timeline__row--right .article-timeline__desc{
    margin-left: 0;
  }

  .article-timeline__date{
    text-align: left;
  }

  .article-timeline__title-cluster{
    align-items: flex-start;
  }

  .article-timeline__row--left .article-timeline__left-line{
    display: none;
  }

  .article-timeline__row--left > .article-timeline__date--spine{
    display: none;
  }

  .article-timeline__row--right > .article-timeline__date--spine-right{
    display: none;
  }

  .article-timeline__date--left-mobile-only,
  .article-timeline__date--right-mobile-only{
    display: block;
    margin: 0 0 10px;
    font-size: 17px;
    font-weight: 500;
    letter-spacing: 0.1em;
    color: rgba(136, 146, 176, 0.92);
    text-align: left;
    width: auto;
    align-self: flex-start;
    position: relative;
    z-index: 2;
  }

  .article-timeline__row--left .article-timeline__date--left-mobile-only{
    margin-top: 6px;
  }
}

@media (prefers-reduced-motion: reduce){
  .article-timeline__image-panel,
  .article-timeline__desc-panel{
    transition-duration: 0.01ms;
  }
}

/* --- Article 2: horizontal timeline only (.article-timeline-horizontal*) --- */
/* Stop scroll anchoring from nudging the page when preview content updates during hover */
.article-timeline-horizontal-body{
  overflow-anchor: none;
}

/* Extra scroll room under the timeline (does not override .archive-page padding sides) */
.article-timeline-horizontal-page .archive-wrap{
  margin-bottom: 88px;
}

.article-timeline-horizontal-page .archive-title{
  font-size: calc(52px * 0.72);
  line-height: 1.12;
}

.article-timeline-horizontal__intro{
  max-width: 42rem;
  margin: 0 0 28px;
  font-size: 15px;
  line-height: 1.6;
  color: var(--slate);
  text-align: justify;
  hyphens: auto;
  -webkit-hyphens: auto;
  overflow-wrap: break-word;
}

.article-timeline-horizontal{
  display: flex;
  flex-direction: column;
  /* Let preview + timeline stack naturally so the nav block stays in view without extra scroll */
  min-height: 0;
  margin-top: 8px;
  padding-bottom: calc(1.25rem + 80px);
}

.article-timeline-horizontal__preview{
  flex: 0 0 auto;
  /* Preview band +20% vs 1037px — more horizontal room for image + text columns */
  max-width: 1244px;
  width: 100%;
  margin: 0 auto 24px;
  padding: 22px 24px 24px;
  /* No visible “card” — content only, layout unchanged */
  border-radius: 0;
  background: transparent;
  border: none;
  box-shadow: none;
  backdrop-filter: none;
  -webkit-backdrop-filter: none;
  transition: opacity 0.2s ease;
  /* Fixed band height: long descriptions scroll inside so the dock/timeline never shifts vertically */
  height: clamp(26rem, 52vh, 34rem);
  min-height: 0;
  max-height: none;
  overflow-y: auto;
  box-sizing: border-box;
  /* Milestone image left, title + body right */
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  grid-template-rows: auto minmax(0, 1fr);
  column-gap: 2.16rem;
  row-gap: 0.75rem;
  align-items: start;
}

.article-timeline-horizontal__preview-media{
  margin-bottom: 0;
  grid-column: 1;
  grid-row: 1 / -1;
  display: flex;
  align-items: flex-start;
  justify-content: flex-start;
  align-self: start;
  min-height: 252px;
  height: auto;
}

.article-timeline-horizontal__preview-img{
  display: block;
  max-width: min(540px, 72vw);
  max-height: min(396px, 94vh);
  width: auto;
  height: auto;
  object-fit: contain;
  object-position: left top;
  border-radius: 8px;
}

.article-timeline-horizontal__preview-title{
  grid-column: 2;
  grid-row: 1;
  margin: 0 0 12px;
  color: var(--white);
  font-size: 1.35rem;
  font-weight: 700;
  line-height: 1.3;
  letter-spacing: -0.02em;
  transition: opacity 0.2s ease;
}

.article-timeline-horizontal__preview-desc{
  grid-column: 2;
  grid-row: 2;
  margin: 0;
  min-height: 0;
  font-size: 15px;
  line-height: 1.65;
  color: var(--slate);
  transition: opacity 0.2s ease;
  text-align: justify;
  hyphens: auto;
  -webkit-hyphens: auto;
  overflow-wrap: break-word;
}

.article-timeline-horizontal__dock{
  flex-shrink: 0;
  /* Sit ~20px higher so year labels are less likely to clip below the viewport */
  margin-top: calc(1.5rem - 20px);
  width: 100%;
  /* Keep timeline strip from flex-reflowing when sibling preview scrollbars appear */
  position: relative;
  z-index: 1;
}

.article-timeline-horizontal__track-scroll{
  overflow-x: auto;
  overflow-y: visible;
  -webkit-overflow-scrolling: touch;
  overflow-anchor: none;
  overscroll-behavior-x: contain;
  overscroll-behavior-y: auto;
  padding-bottom: 1.25rem;
  margin: 0 -12px;
  padding-left: 12px;
  padding-right: 12px;
}

.article-timeline-horizontal__track{
  position: relative;
  margin: 0 auto;
  min-width: 100%;
  max-width: 100%;
  /* Extra headroom above the line for vertically staggered points */
  --article-horiz-pad-top: 45px;
  /* Compact nav block: line + tight gap + year labels (stable height on hover) */
  height: calc(var(--article-horiz-pad-top) + var(--article-horiz-line-top) + 0.5rem + var(--article-horiz-year-band) + 0.35rem);
  padding: 0 1.25rem 0.15rem;
  box-sizing: border-box;
  --article-horiz-line-top: 2.4rem;
  /* Space for rotated year labels immediately under the line */
  --article-horiz-year-band: 2.35rem;
}

.article-timeline-horizontal__line{
  position: absolute;
  left: 1.5rem;
  right: 1.5rem;
  top: calc(var(--article-horiz-pad-top) + var(--article-horiz-line-top));
  height: 2px;
  border-radius: 2px;
  background: linear-gradient(
    90deg,
    transparent,
    var(--article-tl-line) 1%,
    var(--article-tl-line) 99%,
    transparent
  );
  pointer-events: none;
  z-index: 0;
}

/* Year labels: anchored just below the line (one visual block with line + points) */
.article-timeline-horizontal__year-scale{
  position: absolute;
  left: 1.5rem;
  right: 1.5rem;
  top: calc(var(--article-horiz-pad-top) + var(--article-horiz-line-top) + 6px);
  bottom: auto;
  height: var(--article-horiz-year-band);
  pointer-events: none;
  z-index: 0;
}

.article-timeline-horizontal__year-label{
  position: absolute;
  bottom: 0.2rem;
  left: 0;
  transform: translateX(-50%) rotate(-90deg);
  transform-origin: bottom center;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.08em;
  color: rgba(168, 178, 209, 0.88);
  line-height: 1;
  white-space: nowrap;
}

/* Dots live only above the line (no dead space between line and labels) */
.article-timeline-horizontal__marks{
  list-style: none;
  margin: 0;
  padding: 0;
  position: absolute;
  left: 1.5rem;
  right: 1.5rem;
  top: 0;
  height: calc(var(--article-horiz-pad-top) + var(--article-horiz-line-top) + 2px);
  bottom: auto;
  z-index: 1;
  pointer-events: none;
}

.article-timeline-horizontal__mark{
  position: absolute;
  left: 0;
  transform: translateX(calc(-50% + var(--article-horiz-marker-x, 0px))) translateY(var(--article-horiz-marker-y, 0px));
  top: 0;
  bottom: 0;
  width: 0;
  pointer-events: none;
}

/* Interactive target: circle only — above the timeline line */
.article-timeline-horizontal__point-hit{
  pointer-events: auto;
  position: absolute;
  left: 50%;
  top: calc(var(--article-horiz-pad-top) + var(--article-horiz-line-top) - 12px);
  transform: translate(-50%, -50%);
  min-width: 32px;
  min-height: 32px;
  width: 44px;
  height: 44px;
  margin: 0;
  padding: 0;
  border: none;
  border-radius: 999px;
  background: transparent;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  box-sizing: border-box;
}

.article-timeline-horizontal__point-dot{
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--horiz-point-color, var(--article-tl-line));
  box-shadow:
    0 0       0 3px rgba(17, 34, 64, 0.96),
    0 0       0 4px rgba(100, 255, 218, 0.12);
  flex-shrink: 0;
  transition: box-shadow 0.2s ease, filter 0.2s ease;
}

.article-timeline-horizontal__point-hit.is-active .article-timeline-horizontal__point-dot{
  filter: brightness(1.12);
  box-shadow:
    0px 0px   0 3px rgba(17, 34, 64, 0.96),
    0px 0px   0 5px rgba(100, 255, 218, 0.38);
}

.article-timeline-horizontal__point-hit:focus{
  outline: none;
}

.article-timeline-horizontal__point-hit:focus-visible{
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

@media (max-width: 767px){
  .article-timeline-horizontal{
    min-height: 0;
  }

  .article-timeline-horizontal__track{
    min-width: min(100%, 52rem);
    height: calc(var(--article-horiz-pad-top) + var(--article-horiz-line-top) + 0.45rem + var(--article-horiz-year-band) + 0.3rem);
    padding: 0 1rem 0.1rem;
    --article-horiz-line-top: 2.25rem;
    --article-horiz-year-band: 2.2rem;
  }

  .article-timeline-horizontal__year-scale{
    top: calc(var(--article-horiz-pad-top) + var(--article-horiz-line-top) + 5px);
  }

  .article-timeline-horizontal__year-label{
    font-size: 10px;
    letter-spacing: 0.05em;
  }

  .article-timeline-horizontal__point-hit{
    top: calc(var(--article-horiz-pad-top) + var(--article-horiz-line-top) - 10px);
  }

  .article-timeline-horizontal__preview{
    margin-bottom: 20px;
    padding: 18px 16px 20px;
    height: clamp(22rem, 48vh, 32rem);
    min-height: 0;
    max-height: none;
    /* Phones: image first, then title, then body (readable single column) */
    grid-template-columns: 1fr;
    grid-template-rows: auto auto minmax(0, 1fr);
    column-gap: 0;
    row-gap: 14px;
  }

  .article-timeline-horizontal__preview-media{
    grid-column: 1;
    grid-row: 1;
    min-height: 0;
    justify-content: center;
  }

  .article-timeline-horizontal__preview-img{
    max-width: 100%;
    max-height: min(260px, 42vh);
    object-position: center top;
  }

  .article-timeline-horizontal__preview-title{
    grid-column: 1;
    grid-row: 2;
  }

  .article-timeline-horizontal__preview-desc{
    grid-column: 1;
    grid-row: 3;
    font-size: 14px;
  }

  .article-timeline-horizontal__intro{
    font-size: 14px;
  }
}

@media (prefers-reduced-motion: reduce){
  .article-timeline-horizontal__preview,
  .article-timeline-horizontal__preview-title,
  .article-timeline-horizontal__preview-desc,
  .article-timeline-horizontal__point-dot,
  .article-timeline-horizontal__point-hit{
    transition-duration: 0.01ms;
  }
}

/* --- Article 3: document + audio (.article-document*) --- */
.article-document-body{
  overflow-y: auto;
}

.article-document-page .container-md{
  max-width: 81.9rem; /* 63rem + 30% */
}

.article-document__title{
  font-size: clamp(2rem, 4vw, 2.75rem);
  line-height: 1.15;
  margin-bottom: 1.5rem;
}

.article-document__body{
  margin: 0;
  color: #94a3b8;
  font-size: 1.0625rem;
  line-height: 1.75;
  letter-spacing: 0.01em;
  text-align: justify;
  text-justify: inter-word;
  hyphens: auto;
  -webkit-hyphens: auto;
  overflow-wrap: break-word;
}

.article-document__body + .article-document__body{
  margin-top: 1.35em;
}

.article-document__audio-card{
  background: rgba(17, 34, 64, 0.65);
  border-color: #334155 !important;
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.35) !important;
}

.article-document__audio-heading{
  color: rgba(168, 178, 209, 0.88);
  letter-spacing: 0.12em;
  font-weight: 600;
}

.article-document__audio{
  max-height: 48px;
}

.article-document__audio-empty{
  color: rgba(168, 178, 209, 0.85);
}

.article-document__audio-empty code{
  color: var(--accent);
  font-size: 0.9em;
}

.article-document__audio-path{
  display: inline-block;
  max-width: 100%;
  word-break: break-word;
  white-space: normal;
  line-height: 1.45;
  color: var(--accent);
  font-size: 0.88em;
}

/* ── Language switcher ─────────────────────────────────────────────── */
.lang-switcher {
  position: fixed;
  top: 24px;
  right: 32px;
  z-index: 200;
  display: flex;
  align-items: center;
  gap: 6px;
  background: rgba(17, 34, 64, 0.88);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border: 1px solid rgba(100, 255, 218, 0.18);
  border-radius: 6px;
  padding: 6px 12px;
}
.lang-btn {
  color: var(--slate);
  text-decoration: none;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.1em;
  transition: color 150ms ease;
  line-height: 1;
}
.lang-btn:hover { color: var(--white); }
.lang-btn.is-active { color: var(--accent); }
.lang-divider {
  color: rgba(136, 146, 176, 0.3);
  font-size: 11px;
  line-height: 1;
  user-select: none;
}
@media (max-width: 600px) {
  .lang-switcher { top: 14px; right: 16px; padding: 5px 10px; }
}