/* ═══════════════════════════════════════════════════════════
   TOKENS & RESET — warm light theme
═══════════════════════════════════════════════════════════ */
:root {
  --bg:           #ffffff;
  --bg-2:         #fdfcfa;
  --bg-3:         #f7f5f0;
  --surface:      #ffffff;
  --border:       rgba(0,0,0,0.07);
  --border-hover: rgba(180,140,80,0.3);
  --brown:        #8a6a2e;
  --brown-dim:    rgba(138,106,46,0.08);
  --brown-glow:   rgba(138,106,46,0.04);
  --text:         #1c1814;
  --text-dim:     #5c5248;
  --text-muted:   #a09880;
  --accent:       #8a6a2e;
  --radius:       8px;
  --radius-lg:    12px;
  --transition:   0.28s cubic-bezier(0.4,0,0.2,1);
  --font-sans:    'DM Sans', system-ui, sans-serif;
  --font-mono:    'DM Mono', monospace;
  --max-w:        780px;
  --section-gap:  52px;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html {
  /* continuous smooth scroll — no snap/jump */
  scroll-behavior: smooth;
  scroll-padding-top: 40px;
}

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-sans);
  font-size: 14px;
  line-height: 1.7;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }
a   { color: inherit; text-decoration: none; }
ul  { list-style: none; }
.muted { color: var(--text-muted); }

/* ═══════════════════════════════════════════════════════════
   CANVAS BACKGROUND — very subtle on white
═══════════════════════════════════════════════════════════ */
#bg-canvas {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  opacity: 0.18;
}

/* dot-nav removed */

/* ═══════════════════════════════════════════════════════════
   HERO
═══════════════════════════════════════════════════════════ */
#hero {
  position: relative;
  z-index: 1;
  padding: 56px 24px 44px;
  background: none;
}

.hero-inner {
  display: flex;
  align-items: flex-start;
  gap: 44px;
  max-width: var(--max-w);
  margin: 0 auto;
  width: 100%;
}

/* text left, photo right */
.hero-text { flex: 1; }

.hero-name {
  font-family: var(--font-sans);
  font-size: 22px;
  font-weight: 600;
  line-height: 1.2;
  color: var(--text);
  margin-bottom: 12px;
  letter-spacing: -0.01em;
}

.hero-kevin {
  font-weight: 300;
  color: var(--text-dim);
  font-size: 0.88em;
}

.hero-intro {
  font-size: 13.5px;
  color: var(--text-dim);
  line-height: 1.68;
  margin-bottom: 10px;
  font-weight: 300;
}
.hero-intro strong {
  color: var(--text);
  font-weight: 500;
}

.hero-links {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0;
  margin-top: 16px;
}

/* plain inline text links separated by / */
.link-txt {
  font-family: var(--font-sans);
  font-size: 13px;
  font-weight: 400;
  color: var(--brown);
  transition: color var(--transition);
  padding: 0 2px;
}
.link-txt:hover { color: var(--text); }

.link-sep {
  font-size: 12px;
  color: var(--text-muted);
  padding: 0 5px;
  user-select: none;
}

.link-pill {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.04em;
  padding: 4px 14px;
  border: 1px solid var(--border);
  border-radius: 100px;
  color: var(--text-dim);
  background: var(--surface);
  transition: var(--transition);
}
.link-pill:hover {
  border-color: var(--brown);
  color: var(--brown);
  background: var(--brown-dim);
}

/* Profile photo — right side, rectangular portrait */
.hero-photo-wrap {
  flex-shrink: 0;
  width: 118px;
  height: 158px;
  border-radius: 5px;
  overflow: hidden;
  border: 1px solid rgba(0,0,0,0.07);
  box-shadow: 0 2px 12px rgba(0,0,0,0.06);
  position: relative;
  margin-top: 2px;
}

.hero-photo {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: none;
}
.hero-photo:hover { filter: none; }

.hero-photo-placeholder {
  display: none;
  width: 100%;
  height: 100%;
  align-items: center;
  justify-content: center;
  font-family: var(--font-sans);
  font-size: 36px;
  font-weight: 300;
  color: var(--brown);
  background: var(--bg-3);
}

/* scroll hint removed */

/* ═══════════════════════════════════════════════════════════
   SECTIONS — shared
═══════════════════════════════════════════════════════════ */
.section {
  position: relative;
  z-index: 1;
  padding: var(--section-gap) 24px;
}

/* hairline divider between sections */
.section + .section {
  border-top: 1px solid rgba(0,0,0,0.045);
}

#hero + .section {
  border-top: 1px solid rgba(0,0,0,0.045);
}

.section-inner {
  max-width: var(--max-w);
  margin: 0 auto;
}

.section-label {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--brown);
  margin-bottom: 10px;
  display: flex;
  align-items: center;
  gap: 10px;
}
.section-label::after {
  content: '';
  flex: 1;
  max-width: 48px;
  height: 1px;
  background: var(--brown);
  opacity: 0.35;
}

.section-title {
  font-family: var(--font-sans);
  font-size: 18px;
  font-weight: 600;
  letter-spacing: -0.01em;
  line-height: 1.2;
  margin-bottom: 8px;
  color: var(--text);
}

.section-sub {
  font-size: 12px;
  margin-bottom: 24px;
}

/* reveal — very subtle, fast */
.reveal {
  opacity: 0;
  transform: translateY(10px);
  transition: opacity 0.45s ease, transform 0.45s ease;
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ═══════════════════════════════════════════════════════════
   ABOUT
═══════════════════════════════════════════════════════════ */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 220px;
  gap: 48px;
  align-items: start;
}

.about-text p {
  color: var(--text-dim);
  margin-bottom: 14px;
  font-size: 15px;
  font-weight: 300;
}
.about-text strong { color: var(--text); font-weight: 500; }

.info-block { margin-bottom: 32px; }
.info-block h4 {
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--brown);
  margin-bottom: 12px;
}
.info-block li {
  font-size: 13.5px;
  color: var(--text-dim);
  padding: 5px 0;
  border-bottom: 1px solid var(--border);
}
.info-block li:last-child { border-bottom: none; }

/* ═══════════════════════════════════════════════════════════
   PUBLICATIONS
═══════════════════════════════════════════════════════════ */
.pub-list {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.pub-item {
  display: flex;
  gap: 20px;
  padding: 18px 20px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  transition: var(--transition);
}
.pub-item:hover {
  border-color: var(--border-hover);
  box-shadow: 0 2px 16px rgba(138,106,46,0.07);
}

.pub-thumb-wrap {
  flex-shrink: 0;
  width: 130px;
  height: 88px;
  border-radius: 8px;
  overflow: hidden;
  background: var(--bg-3);
}
.pub-thumb-wrap.no-thumb { display: none; }
.pub-thumb {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: filter var(--transition);
}

.pub-info { flex: 1; }

.pub-badges {
  display: flex;
  gap: 8px;
  margin-bottom: 10px;
}
.badge {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.08em;
  padding: 3px 10px;
  border-radius: 100px;
}
.badge.venue {
  background: var(--brown-dim);
  color: var(--brown);
  border: 1px solid rgba(138,106,46,0.25);
}
.badge.highlight {
  background: var(--bg-2);
  color: var(--text-muted);
  border: 1px solid var(--border);
}

.pub-title {
  font-family: var(--font-sans);
  font-size: 14px;
  font-weight: 500;
  line-height: 1.4;
  margin-bottom: 5px;
  color: var(--text);
  letter-spacing: -0.01em;
}

.pub-authors {
  font-size: 12.5px;
  color: var(--text-muted);
  margin-bottom: 9px;
  font-weight: 300;
}
.pub-authors strong { color: var(--text-dim); font-weight: 500; }

.pub-links {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 12px;
}

.pub-link {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.04em;
  color: var(--brown);
  border: 1px solid rgba(138,106,46,0.28);
  border-radius: 6px;
  padding: 3px 10px;
  background: var(--brown-dim);
  transition: var(--transition);
}
.pub-link:hover {
  background: rgba(138,106,46,0.2);
  border-color: var(--brown);
}

.abstract-toggle {
  background: none;
  border: none;
  cursor: pointer;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--text-muted);
  padding: 0;
  transition: color var(--transition);
  display: flex;
  align-items: center;
  gap: 5px;
}
.abstract-toggle:hover { color: var(--text-dim); }
.abstract-toggle .chevron { transition: transform var(--transition); }
.abstract-toggle.open .chevron { transform: rotate(180deg); }

.pub-abstract {
  margin-top: 12px;
  font-size: 13.5px;
  color: var(--text-muted);
  line-height: 1.65;
  border-left: 2px solid var(--brown);
  padding-left: 14px;
  font-weight: 300;
}
.pub-abstract.hidden { display: none; }

/* ═══════════════════════════════════════════════════════════
   PROJECTS
═══════════════════════════════════════════════════════════ */
.project-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 20px;
}

.project-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: var(--transition);
  display: flex;
  flex-direction: column;
  cursor: pointer;
  box-shadow: 0 1px 4px rgba(0,0,0,0.04);
}
.project-card:hover {
  border-color: var(--border-hover);
  transform: translateY(-3px);
  box-shadow: 0 8px 28px rgba(138,106,46,0.1);
}

.project-img-wrap {
  position: relative;
  height: 145px;
  background: var(--bg-3);
  overflow: hidden;
}
.project-img-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition);
}
.project-card:hover .project-img-wrap img { transform: scale(1.03); }

.project-img-fallback {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-sans);
  font-size: 44px;
  font-weight: 200;
  color: rgba(138,106,46,0.25);
}

.project-body { padding: 18px; flex: 1; }
.project-body h3 {
  font-family: var(--font-sans);
  font-size: 15.5px;
  font-weight: 500;
  margin-bottom: 7px;
  color: var(--text);
  letter-spacing: -0.01em;
}
.project-body p {
  font-size: 13px;
  color: var(--text-dim);
  line-height: 1.6;
  margin-bottom: 13px;
  font-weight: 300;
}
.project-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 5px;
}
.project-tags span {
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--text-muted);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 2px 8px;
  background: var(--bg-2);
}

/* ═══════════════════════════════════════════════════════════
   TALKS
═══════════════════════════════════════════════════════════ */
.talks-list {
  display: flex;
  flex-direction: column;
  gap: 28px;
}

.talk-item {
  display: flex;
  gap: 28px;
  align-items: flex-start;
}

.talk-video-wrap {
  flex-shrink: 0;
  width: 220px;
  height: 128px;
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--bg-3);
  position: relative;
  border: 1px solid var(--border);
}
.talk-video-wrap iframe,
.talk-video-wrap video {
  width: 100%;
  height: 100%;
  border: none;
}

.talk-thumb-link {
  display: block;
  width: 100%;
  height: 100%;
  position: relative;
}
.talk-thumb-link img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: brightness(0.88);
  transition: filter var(--transition);
}
.talk-thumb-link:hover img { filter: brightness(1); }

.play-btn {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  color: var(--brown);
  transition: transform var(--transition);
}
.talk-thumb-link:hover .play-btn { transform: scale(1.2); }

.talk-video-wrap.no-video-thumb { background: var(--bg-3); }

.talk-info { flex: 1; }
.talk-venue {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  display: block;
  margin-bottom: 8px;
}
.talk-info h3 {
  font-family: var(--font-sans);
  font-size: 17px;
  font-weight: 500;
  margin-bottom: 7px;
  color: var(--text);
  letter-spacing: -0.01em;
}
.talk-info p {
  font-size: 13.5px;
  color: var(--text-muted);
  margin-bottom: 12px;
}
.talk-info .pub-link { margin-right: 6px; }

/* ═══════════════════════════════════════════════════════════
   FOOTER
═══════════════════════════════════════════════════════════ */
#footer {
  position: relative;
  z-index: 1;
  border-top: 1px solid var(--border);
  padding: 28px 24px;
}

.footer-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  display: flex;
  justify-content: center;
}

.footer-inner p {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text-muted);
  letter-spacing: 0.04em;
}

/* ═══════════════════════════════════════════════════════════
   RESPONSIVE
═══════════════════════════════════════════════════════════ */
@media (max-width: 680px) {
  .hero-inner      { flex-direction: column-reverse; align-items: center; text-align: center; gap: 24px; }
  .hero-links      { justify-content: center; }
  .hero-photo-wrap { width: 96px; height: 128px; }
  .pub-item        { flex-direction: column; }
  .pub-thumb-wrap  { width: 100%; height: 130px; }
  .talk-item       { flex-direction: column; }
  .talk-video-wrap { width: 100%; height: 180px; }
  :root            { --section-gap: 40px; }
}
/* ═══════════════════════════════════════════════════════════
   HERO OVERRIDES — name bigger, text black, links blue
═══════════════════════════════════════════════════════════ */
.hero-name {
  font-size: 28px !important;
  font-weight: 700 !important;
  color: #000 !important;
  letter-spacing: -0.02em !important;
  margin-bottom: 4px !important;
}

.hero-sub {
  font-size: 14.5px;
  color: #222;
  font-weight: 600;
  margin-bottom: 18px;
}

.hero-intro {
  font-size: 13.5px !important;
  color: #111 !important;
  font-weight: 500 !important;
  line-height: 1.68 !important;
  margin-bottom: 10px !important;
}

.hero-intro strong {
  color: #000 !important;
  font-weight: 500 !important;
}

/* links in hero → plain blue underline style */
.link-txt {
  font-family: var(--font-sans) !important;
  font-size: 13px !important;
  font-weight: 500 !important;
  color: #1a6fc4 !important;
  text-decoration: underline;
  text-underline-offset: 2px;
  padding: 0 !important;
}
.link-txt:hover { color: #0d4f9e !important; }

.link-sep {
  color: #999 !important;
  padding: 0 5px !important;
  text-decoration: none;
  font-size: 12px !important;
}

/* photo: no hover animation, shifted down, bigger */
.hero-photo-wrap {
  width: 150px !important;
  height: 200px !important;
  margin-top: 28px !important;
  border-radius: 4px !important;
  box-shadow: 0 2px 10px rgba(0,0,0,0.1) !important;
}
.hero-photo {
  pointer-events: none;
  transition: none !important;
}
.hero-photo:hover { filter: none !important; }
.hero-photo-wrap:hover .hero-photo { filter: none !important; transform: none !important; }

/* ═══════════════════════════════════════════════════════════
   PUBLICATIONS — new flat format
═══════════════════════════════════════════════════════════ */

/* highlight word in section-sub */
.highlight-word {
  color: #b8860b;
  font-weight: 500;
  background: rgba(212,170,50,0.12);
  padding: 0 3px;
  border-radius: 3px;
}

.section-sub {
  font-size: 12.5px !important;
  color: #888 !important;
  margin-bottom: 28px !important;
}

.pub-list {
  display: flex;
  flex-direction: column;
  gap: 0 !important;
}

/* each pub row */
.pub-item {
  display: flex;
  gap: 20px;
  padding: 16px 12px;
  border: none !important;
  border-top: 1px solid rgba(0,0,0,0.07) !important;
  border-radius: 0 !important;
  box-shadow: none !important;
  background: transparent !important;
  margin: 0 -12px;  /* bleed to offset the padding so left edges align with section */
}
.pub-item:first-child { border-top: none !important; }

/* featured highlight — same padding/margin so media aligns perfectly */
.pub-featured {
  background: rgba(212,170,50,0.07) !important;
  border-radius: 8px !important;
  border: 1px solid rgba(212,170,50,0.22) !important;
  /* padding & margin identical to .pub-item so left edge of media is flush */
}

/* media (image or video) on the left */
.pub-media {
  flex-shrink: 0;
  width: 200px;
  height: 120px;
  border-radius: 6px;
  overflow: hidden;
  background: #f0ede8;
  display: flex;
  align-items: center;
  justify-content: center;
}
.pub-media.no-media { background: #f0ede8; }
.pub-media img,
.pub-media video {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

/* pub info on the right */
.pub-info { flex: 1; }

.pub-title {
  font-size: 14px !important;
  font-weight: 600 !important;
  color: #000 !important;
  line-height: 1.4 !important;
  margin: 0 0 5px !important;
}

.pub-authors {
  font-size: 13px !important;
  color: #888 !important;
  font-weight: 300 !important;
  margin: 0 0 4px !important;
  line-height: 1.5 !important;
}
/* self author highlighted in black */
.pub-me {
  color: #000 !important;
  font-weight: 600 !important;
}

.pub-venue {
  font-size: 12.5px;
  color: #555;
  font-weight: 400;
  margin: 0 0 10px;
}

.pub-award {
  display: inline-block;
  font-size: 10px;
  font-family: var(--font-mono);
  color: #b8860b;
  background: rgba(212,170,50,0.15);
  border: 1px solid rgba(212,170,50,0.3);
  border-radius: 4px;
  padding: 1px 7px;
  vertical-align: middle;
  margin-left: 4px;
}

.pub-links {
  display: flex;
  flex-wrap: wrap;
  gap: 6px !important;
  margin: 0 !important;
}

.pub-link {
  font-family: var(--font-sans) !important;
  font-size: 12px !important;
  color: #1a6fc4 !important;
  border: none !important;
  background: none !important;
  padding: 0 !important;
  text-decoration: underline;
  text-underline-offset: 2px;
  letter-spacing: 0 !important;
  border-radius: 0 !important;
}
.pub-link:hover { color: #0d4f9e !important; }

/* separator between pub links */
.pub-links a + a::before {
  content: " / ";
  color: #bbb;
  text-decoration: none;
  display: inline-block;
  margin-right: 6px;
}

/* ═══════════════════════════════════════════════════════════
   SECTION TITLES — all black
═══════════════════════════════════════════════════════════ */
.section-title {
  font-size: 16px !important;
  font-weight: 700 !important;
  color: #000 !important;
  margin-bottom: 6px !important;
  letter-spacing: 0 !important;
}

.misc-sub-title {
  margin-top: 32px !important;
}

/* ═══════════════════════════════════════════════════════════
   MISC — Teaching / Service / Awards
═══════════════════════════════════════════════════════════ */
.misc-list {
  list-style: disc;
  padding-left: 20px;
  margin-top: 8px;
}
.misc-list li {
  font-size: 13.5px;
  color: #222;
  padding: 3px 0;
  line-height: 1.6;
}

.misc-placeholder {
  font-size: 13.5px;
  color: #aaa;
  font-style: italic;
}

/* section label hide (not used in new design) */
.section-label { display: none; }

/* body text darker globally */
body { color: #111 !important; }