/* dabeenl.github.io — stylesheet for the 2026 redesign.
   Colors and type live in the :root tokens below; everything else derives from them. */

:root {
  --paper: #FBFAF7;
  --ink: #1C1C21;
  --muted: #5F6069;
  --rule: #E3E1DA;
  --surface: #FFFFFF;
  --surface-2: #F3F1EA;
  --accent: #1E4E8C;
  --accent-dark: #153B6B;
  --accent-tint: #E9EFF8;
  --accent-line: #C9D2E3;
  --font-body: 'Source Sans 3', 'Helvetica Neue', Helvetica, Arial, sans-serif;
  --font-display: 'Newsreader', Georgia, 'Times New Roman', serif;
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.55;
}
a { color: var(--accent); }
a:hover { color: var(--accent-dark); }
img { max-width: 100%; height: auto; }
h1, h2, h3 {
  font-family: var(--font-display);
  font-weight: 500;
  line-height: 1.2;
  margin: 0;
  letter-spacing: -0.005em;
}
h1 { font-size: 46px; line-height: 1.1; }
h2 { font-size: 27px; }
p { margin: 0 0 1em; }
.muted { color: var(--muted); }
[hidden] { display: none !important; }

.container { max-width: 1120px; margin: 0 auto; padding: 0 24px; }
.page { padding: 48px 24px 56px; }

/* Header and navigation */
html { scroll-padding-top: 96px; }
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  border-bottom: 1px solid var(--rule);
  background: rgba(251, 250, 247, 0.92);
  -webkit-backdrop-filter: saturate(1.4) blur(10px);
  backdrop-filter: saturate(1.4) blur(10px);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px 24px;
  min-height: 72px;
  padding-top: 10px;
  padding-bottom: 10px;
}
.site-name {
  font-family: var(--font-display);
  font-size: 24px;
  color: var(--ink);
  text-decoration: none;
}
.site-nav { display: flex; flex-wrap: wrap; gap: 4px 28px; }
.site-nav a {
  font-size: 16px;
  font-weight: 500;
  color: var(--ink);
  text-decoration: none;
  padding: 6px 0;
  border-bottom: 2px solid transparent;
}
.site-nav a:hover { color: var(--accent); }
.site-nav a.active { color: var(--accent); font-weight: 600; border-bottom-color: var(--accent); }

/* Page headers and sections */
.page-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  flex-wrap: wrap;
  gap: 20px 32px;
  margin-bottom: 32px;
}
.lead { font-size: 19px; line-height: 1.45; max-width: 820px; margin: 10px 0 0; }
.legend { font-size: 15px; margin: 10px 0 0; }
.section { margin-top: 40px; }
.section h2 { margin-bottom: 12px; }
.count { font-family: var(--font-body); font-size: 15px; color: var(--muted); margin-left: 8px; }

/* Home: hero */
.hero { display: flex; gap: 44px; align-items: flex-start; margin-bottom: 40px; }
.hero-photo { width: 200px; height: 250px; object-fit: cover; border-radius: 6px; flex-shrink: 0; }
.hero-text { display: flex; flex-direction: column; gap: 12px; min-width: 0; }
.hero-name { font-size: 48px; }
.hero-title { font-size: 19px; line-height: 1.4; margin: 0; }
.hero-affil { font-size: 16px; line-height: 1.5; color: var(--muted); margin: 0; }
.hero-contact { display: flex; flex-wrap: wrap; gap: 4px 28px; font-size: 15px; color: var(--muted); margin: 0; }
.chip-links { display: flex; flex-wrap: wrap; gap: 10px; }
.chip-link {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 0 18px;
  border: 1px solid var(--accent-line);
  border-radius: 999px;
  background: var(--surface);
  color: var(--accent);
  font-size: 15px;
  font-weight: 600;
  text-decoration: none;
}
.chip-link:hover { border-color: var(--accent); }

/* Home: two columns */
.two-col {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 360px;
  gap: 40px 64px;
  align-items: start;
}
.col-main h2 { margin: 40px 0 12px; }
.col-main h2:first-child, .col-main .section h2 { margin-top: 0; }
.col-main p:last-of-type { margin-bottom: 0; }
.figs { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 14px; margin: 22px 0 0; }
.fig { margin: 0; overflow: hidden; background: var(--surface); border: 1px solid var(--rule); border-radius: 12px; box-shadow: 0 1px 2px rgba(28, 28, 33, 0.04); transition: transform 0.18s ease, box-shadow 0.18s ease; }
.fig:hover { transform: translateY(-3px); box-shadow: 0 10px 24px rgba(30, 78, 140, 0.14); }
.fig svg { display: block; width: 100%; height: auto; border-bottom: 1px solid var(--rule); }
.fig figcaption { padding: 9px 10px 11px; font-size: 13.5px; line-height: 1.3; text-align: center; color: var(--ink); }
.fig figcaption strong { display: block; font-weight: 600; }
.fig figcaption span { display: block; margin-top: 2px; font-size: 12px; color: var(--muted); }
@media (max-width: 720px) { .figs { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (prefers-reduced-motion: reduce) { .fig { transition: none; } .fig:hover { transform: none; } }
.chips { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 14px; }
.chip {
  padding: 6px 12px;
  border-radius: 6px;
  background: var(--accent-tint);
  color: var(--accent);
  font-size: 14px;
  font-weight: 600;
}
.col-side { display: flex; flex-direction: column; gap: 24px; }
.card { background: var(--surface); border: 1px solid var(--rule); border-radius: 10px; padding: 22px 24px; }
.card h2 { font-size: 23px; margin-bottom: 12px; }
.card p { font-size: 15px; line-height: 1.5; margin: 0 0 10px; }
.card-tinted { background: var(--surface-2); border-color: transparent; }
.news { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 12px; }
.news li { font-size: 15px; line-height: 1.45; }
.news p { margin: 0; }
.news-label {
  display: block;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--muted);
}
.more-link { display: inline-block; margin-top: 4px; font-size: 15px; font-weight: 600; text-decoration: none; }

/* Publications */
.pub-list { display: flex; flex-direction: column; }
.pub { display: flex; flex-direction: column; gap: 4px; padding: 12px 0; border-top: 1px solid var(--rule); }
.pub:last-child { border-bottom: 1px solid var(--rule); }
.pub-title { font-size: 17px; font-weight: 600; color: var(--ink); text-decoration: none; line-height: 1.35; }
a.pub-title:hover { color: var(--accent); }
.pub-authors { font-size: 15px; color: var(--muted); margin: 0; }
.member { text-decoration: underline; text-decoration-color: var(--accent); text-underline-offset: 3px; }
.pub-award { margin: 0; font-size: 14px; line-height: 1.45; } /* same size as .pub-meta */
.pub-meta { display: flex; flex-wrap: wrap; align-items: center; gap: 4px 10px; font-size: 14px; margin: 0; }
.pub-venue { font-weight: 700; }
.pub-link { font-weight: 600; text-decoration: none; }
.tag {
  display: inline-block;
  padding: 2px 9px;
  border-radius: 5px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  background: #EFEDE6;
  color: #4B4C55;
}
.tag-conference { background: var(--accent-tint); color: var(--accent); }
.tag-journal { background: var(--surface); color: var(--accent); border: 1px solid #B9C7E0; }
.tag-status { display: block; width: max-content; margin-top: 6px; font-family: var(--font-body); border: 1px solid; }
.tag-ongoing { background: var(--accent-tint); color: var(--accent); border-color: #B9C7E0; }
.tag-completed { background: var(--surface); color: var(--muted); border-color: var(--rule); }
.tag-role { background: var(--surface); color: var(--accent); border: 1px solid #B9C7E0; flex-shrink: 0; margin-top: 4px; }
.tag-pi { background: var(--accent); color: #FFFFFF; border-color: var(--accent); }
.filters { display: flex; flex-wrap: wrap; gap: 8px; }
.filter {
  font: inherit;
  font-size: 15px;
  font-weight: 600;
  height: 44px;
  padding: 0 18px;
  border-radius: 999px;
  border: 1px solid #D5D9E3;
  background: var(--surface);
  color: var(--ink);
  cursor: pointer;
}
.filter:hover { border-color: var(--accent); }
.filter.active { background: var(--accent); border-color: var(--accent); color: #FFFFFF; }
.year-block { display: flex; gap: 40px; align-items: flex-start; margin-top: 28px; }
.year { width: 150px; flex-shrink: 0; font-size: 34px; line-height: 1.1; padding-top: 12px; }
.year-block .pub-list { flex-grow: 1; min-width: 0; }

/* Rows (projects, teaching) */
.rows { display: flex; flex-direction: column; }
.row { display: flex; gap: 24px; align-items: flex-start; padding: 16px 0; border-top: 1px solid var(--rule); }
.row:last-child { border-bottom: 1px solid var(--rule); }
.row-period { width: 150px; flex-shrink: 0; font-family: var(--font-display); font-size: 21px; line-height: 1.3; }
.row-text { flex-grow: 1; min-width: 0; display: flex; flex-direction: column; gap: 4px; }
.row-title { font-size: 17px; font-weight: 600; line-height: 1.35; color: var(--ink); text-decoration: none; }
a.row-title:hover { color: var(--accent); }
.row-text .muted { font-size: 15px; }

/* Group */
.group-photo { display: block; width: 100%; height: 300px; object-fit: cover; border-radius: 12px; margin-bottom: 32px; }
.callout {
  display: flex;
  gap: 40px;
  align-items: flex-start;
  padding: 28px 32px;
  background: var(--accent-tint);
  border-radius: 12px;
  margin-bottom: 40px;
}
.callout-main { flex-grow: 1; min-width: 0; }
.callout-main h2 { margin-bottom: 8px; }
.callout p { margin: 0 0 8px; font-size: 16px; }
.callout p:last-child { margin-bottom: 0; }
.callout-side { width: 360px; flex-shrink: 0; padding-left: 32px; border-left: 1px solid var(--accent-line); }
.callout-side p { font-size: 15px; }
.eyebrow {
  display: block;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 8px;
}
.member-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; }
.member-card {
  display: flex;
  gap: 14px;
  align-items: center;
  padding: 16px 18px;
  background: var(--surface);
  border: 1px solid var(--rule);
  border-radius: 10px;
}
.avatar { width: 56px; height: 56px; border-radius: 50%; object-fit: cover; flex-shrink: 0; }
.avatar-initials {
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--accent-tint);
  color: var(--accent);
  font-family: var(--font-display);
  font-size: 22px;
}
.member-text { display: flex; flex-direction: column; gap: 2px; min-width: 0; font-size: 14px; }
.member-name { font-size: 17px; font-weight: 600; color: var(--ink); text-decoration: none; }
a.member-name:hover { color: var(--accent); }
.member-text a { font-weight: 600; text-decoration: none; }
.alumni-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0 48px; }
.alumni-row {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  padding: 12px 0;
  border-bottom: 1px solid var(--rule);
  font-size: 14px;
}
.alumni-text { display: flex; flex-direction: column; gap: 1px; }
.alumni-name { font-size: 16px; font-weight: 600; color: var(--ink); text-decoration: none; }
a.alumni-name:hover { color: var(--accent); }
.alumni-now { text-align: right; flex-shrink: 0; }
.collaborators { font-size: 16px; line-height: 1.7; }

/* Footer */
.site-footer { border-top: 1px solid var(--rule); margin-top: 24px; }
.footer-inner {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 4px 24px;
  padding-top: 20px;
  padding-bottom: 20px;
  font-size: 14px;
  color: var(--muted);
}

/* Illustrated rows (Teaching, Projects) */
.thumb, .row-fig { overflow: hidden; background: var(--surface); border: 1px solid var(--rule); border-radius: 12px; box-shadow: 0 1px 2px rgba(28, 28, 33, 0.05); }
.thumb svg, .row-fig svg { display: block; width: 100%; height: auto; }
.course { display: grid; grid-template-columns: 186px minmax(0, 1fr); gap: 22px; align-items: center; padding: 16px 0; border-top: 1px solid var(--rule); }
.course:last-child { border-bottom: 1px solid var(--rule); }
.course-text { display: flex; flex-direction: column; gap: 3px; min-width: 0; font-size: 14px; }
.course-code { font-family: var(--font-display); font-size: 17px; color: var(--muted); }
.offerings { list-style: none; margin: 4px 0 0; padding: 0; display: flex; flex-direction: column; gap: 3px; color: var(--muted); }
.offerings li { display: flex; gap: 10px; align-items: baseline; }
.offering-term { flex-shrink: 0; min-width: 66px; font-weight: 700; color: var(--ink); }
.row-fig { width: 264px; flex-shrink: 0; align-self: center; }

/* Responsive */
@media (max-width: 960px) {
  .two-col { grid-template-columns: minmax(0, 1fr); }
  .member-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .callout { flex-direction: column; gap: 20px; }
  .callout-side { width: auto; padding-left: 0; border-left: 0; padding-top: 16px; border-top: 1px solid var(--accent-line); }
}
@media (max-width: 640px) {
  body { font-size: 16px; }
  h1, .hero-name { font-size: 36px; }
  .container { padding-left: 20px; padding-right: 20px; }
  .page { padding: 32px 20px 40px; }
  .header-inner { min-height: 0; gap: 2px 24px; padding-top: 10px; padding-bottom: 0; }
  .site-name { font-size: 21px; }
  .site-nav {
    width: calc(100% + 40px);
    margin: 0 -20px;
    padding: 0 20px;
    flex-wrap: nowrap;
    gap: 0 13px;
    overflow-x: auto;
    scrollbar-width: none;
    -webkit-overflow-scrolling: touch;
  }
  .site-nav::-webkit-scrollbar { display: none; }
  .site-nav a { flex-shrink: 0; white-space: nowrap; font-size: 14px; padding: 8px 0 9px; }
  .hero { flex-direction: column; gap: 16px; }
  .hero-photo { width: 120px; height: 150px; }
  .hero-contact { flex-direction: column; gap: 2px; }
  .member-grid, .alumni-grid { grid-template-columns: minmax(0, 1fr); }
  .year-block { flex-direction: column; gap: 8px; }
  .year { width: auto; padding-top: 0; }
  .row { flex-direction: column; gap: 6px; }
  .row-fig { width: 100%; max-width: 340px; align-self: flex-start; margin-top: 8px; }
  .course { grid-template-columns: 112px minmax(0, 1fr); gap: 14px; align-items: start; }
  .offerings li { flex-direction: column; gap: 0; }
  .offerings { gap: 6px; }
  .row-period { width: auto; font-size: 18px; }
  .alumni-row { flex-direction: column; gap: 2px; }
  .alumni-now { text-align: left; }
}