:root {
  --bg: #f5f1ea;
  --bg-warm: #e6dac8;
  --ink: #302d2c;
  --ink-soft: #8a7a6e;
  --line: #ddd6bf;
  --gold: #b08b7f;
  --olive: #b8ab9c;
  --olive-deep: #664e44;
  --card-dark: #4a3a32;
  --radius: 4px;
  --ease: cubic-bezier(.22,1,.36,1);
}

html.dark {
  --bg: #1c1a17;
  --bg-warm: #262320;
  --ink: #f1ede4;
  --ink-soft: #b8ae9f;
  --line: #3a352e;
  --gold: #d9b48f;
  --olive: #8a8270;
  --olive-deep: #d8b9a5;
  --card-dark: #2a2522;
}

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

html { scroll-behavior: smooth; scroll-padding-top: 100px; }

body {
  font-family: 'Palatino Linotype', 'Palatino', 'Book Antiqua', Georgia, serif;
  background: var(--bg);
  color: var(--ink);
  line-height: 1.6;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
  max-width: 100vw;
  transition: background 0.3s var(--ease), color 0.3s var(--ease);
}

h1, h2, h3 {
  font-family: 'Palatino Linotype', 'Palatino', 'Book Antiqua', Georgia, serif;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--ink);
}

em {
  font-style: italic;
  font-weight: 500;
  color: var(--olive-deep);
}

a { color: inherit; text-decoration: none; }

.lowercase { text-transform: lowercase; }

.section-inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 32px;
}

.eyebrow {
  font-size: 0.8rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--gold);
  font-weight: 500;
  margin-bottom: 14px;
}

.center { text-align: center; }

/* ---------- NAV ---------- */
.nav {
  position: fixed;
  top: 16px;
  left: 16px;
  right: 16px;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 24px;
  background: rgba(245, 241, 234, 0.85);
  backdrop-filter: blur(14px);
  border: 1px solid var(--line);
  border-radius: 999px;
  transition: background 0.3s var(--ease);
}
html.dark .nav { background: rgba(28, 26, 23, 0.85); }

.nav-mark {
  font-family: 'Palatino Linotype', 'Palatino', 'Book Antiqua', Georgia, serif;
  font-weight: 700;
  font-size: 1.1rem;
  letter-spacing: 0.02em;
}

.nav-links {
  display: flex;
  gap: 32px;
}

.nav-links a {
  font-size: 0.92rem;
  color: var(--ink-soft);
  cursor: pointer;
  position: relative;
  transition: color 0.2s var(--ease);
}
.nav-links a:hover, .nav-links a:focus-visible { color: var(--ink); }
.nav-links a::after {
  content: '';
  position: absolute;
  left: 0; bottom: -6px;
  width: 0; height: 1px;
  background: var(--gold);
  transition: width 0.25s var(--ease);
}
.nav-links a:hover::after { width: 100%; }

.nav-right {
  display: flex;
  align-items: center;
  gap: 10px;
}

.theme-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  border-radius: 50%;
  border: 1px solid var(--line);
  background: transparent;
  color: var(--ink);
  cursor: pointer;
  transition: background 0.2s var(--ease);
}
.theme-toggle:hover { background: var(--bg-warm); }
.theme-toggle svg { width: 18px; height: 18px; }
.theme-toggle .icon-moon { display: none; }
html.dark .theme-toggle .icon-sun { display: none; }
html.dark .theme-toggle .icon-moon { display: block; }

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}
.nav-toggle span {
  width: 22px;
  height: 2px;
  background: var(--ink);
  border-radius: 2px;
  transition: transform 0.25s var(--ease), opacity 0.25s var(--ease);
}

/* ---------- HERO ---------- */
.hero {
  display: grid;
  grid-template-columns: 1fr 1fr;
  min-height: 80vh;
  padding-top: 88px;
  background: var(--bg);
}

.hero-photo {
  position: relative;
  display: flex;
  flex-direction: column;
}

.hero-photo img {
  flex: 1;
  width: 100%;
  min-height: 60vh;
  object-fit: cover;
  display: block;
}

.hero-text {
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 48px 64px;
}

.hero-name {
  font-family: 'Tangerine', cursive;
  font-weight: 700;
  font-size: clamp(4.5rem, 10vw, 7.5rem);
  line-height: 1;
  margin: 6px 0 24px;
  color: var(--ink);
}

.hero-sub {
  font-size: 1.05rem;
  color: var(--ink-soft);
  max-width: 480px;
  margin-bottom: 36px;
}

.align-right { text-align: right; }

.hero-bio {
  max-width: 480px;
  margin-bottom: 36px;
}
.bio-degree {
  font-size: 1.05rem;
  color: var(--ink-soft);
  text-align: left;
  margin-bottom: 4px;
}
.bio-school {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 8px;
  font-size: 1.05rem;
  color: var(--ink-soft);
  margin-bottom: 20px;
}
.bio-school:last-child { margin-bottom: 0; }
.bio-school .uni-logo { margin: 0; }

.btn {
  display: inline-flex;
  align-items: center;
  padding: 13px 28px;
  border-radius: 2px;
  font-size: 0.9rem;
  font-weight: 500;
  letter-spacing: 0.02em;
  cursor: pointer;
  transition: transform 0.25s var(--ease), background 0.25s var(--ease), color 0.25s var(--ease), box-shadow 0.25s var(--ease);
}
.btn-primary { background: var(--ink); color: var(--bg); }
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 10px 24px -8px rgba(0,0,0,0.35); }
.btn-ghost { border: 1px solid var(--line); color: var(--ink); background: transparent; }
.btn-ghost:hover { background: var(--bg-warm); transform: translateY(-2px); }

/* ---------- VERTICAL SECTION LABEL ---------- */
.vert-label-wrap {
  display: none;
  position: absolute;
  top: 0;
  bottom: 0;
  left: max(16px, calc(50% - 600px));
  width: 60px;
  pointer-events: none;
  z-index: 0;
  opacity: 0;
  transition: opacity 0.15s linear;
}
.vert-label {
  position: absolute;
  top: 0;
  left: 0;
  display: block;
  width: max-content;
  transform: translateY(-50%) rotate(-90deg);
  transform-origin: left center;
  font-family: 'Palatino Linotype', 'Palatino', 'Book Antiqua', Georgia, serif;
  font-weight: 700;
  font-size: 2.4rem;
  letter-spacing: 0.02em;
  color: var(--line);
  white-space: nowrap;
}

/* ---------- ABOUT ---------- */
.about {
  position: relative;
  padding: 80px 0;
  background: var(--bg);
}
.about h2 {
  text-align: left;
  font-size: clamp(1.8rem, 3vw, 2.4rem);
  margin-bottom: 40px;
}
.about-grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1.3fr 0.85fr;
  gap: 64px;
  align-items: start;
}

.about-copy p { color: var(--ink-soft); margin-bottom: 18px; max-width: 560px; }

.about-side {
  display: flex;
  flex-direction: column;
  gap: 28px;
  padding-left: 40px;
  border-left: 1px solid var(--line);
}
.fact { display: flex; flex-direction: column; gap: 6px; }
.fact-label { font-size: 0.75rem; letter-spacing: 0.08em; text-transform: uppercase; color: var(--gold); }
.fact-value { font-size: 0.92rem; color: var(--ink); }

.honors-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-top: 2px;
}
.honors-list li {
  font-size: 0.92rem;
  color: var(--ink);
  line-height: 1.4;
}

.uni-logo {
  width: 16px;
  height: 16px;
  vertical-align: -3px;
  margin: 0 6px 0 0;
}
.badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 1.7em;
  height: 1.5em;
  padding: 0 6px;
  margin-left: 6px;
  background: var(--gold);
  color: var(--bg);
  font-size: 0.72rem;
  font-weight: 700;
  border-radius: 999px;
  vertical-align: middle;
}

/* ---------- SHARED: LABEL-LEFT / CONTENT-CENTERED SECTIONS ---------- */
.experience, .startups, .publications, .contact {
  position: relative;
  display: flex;
  align-items: center;
  min-height: 40vh;
  padding: 60px 0;
}
.experience h2, .startups h2, .publications h2, .contact h2 {
  text-align: left;
  font-size: clamp(1.8rem, 3vw, 2.4rem);
}
.experience .section-inner, .startups .section-inner, .publications .section-inner, .contact .section-inner {
  width: 100%;
}

.section-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 48px;
}
.toggle-all-btn {
  flex-shrink: 0;
  background: transparent;
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 8px 18px;
  font-family: 'Palatino Linotype', 'Palatino', 'Book Antiqua', Georgia, serif;
  font-size: 0.84rem;
  color: var(--ink-soft);
  cursor: pointer;
  transition: background 0.2s var(--ease), color 0.2s var(--ease);
}
.toggle-all-btn:hover { background: var(--bg-warm); color: var(--ink); }

.pub-link {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-weight: 500;
  color: var(--olive-deep);
  cursor: pointer;
}
.pub-link:hover { text-decoration: underline; }

/* ---------- EXPERIENCE ---------- */
.experience { background: var(--bg); }

.exp-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  align-items: start;
  gap: 20px;
}
@media (max-width: 720px) { .exp-grid { grid-template-columns: 1fr; } }

.exp-card {
  background: var(--bg-warm);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 22px 24px;
  transition: box-shadow 0.25s var(--ease), transform 0.25s var(--ease);
}
.exp-card:hover { transform: translateY(-3px); box-shadow: 0 16px 32px -14px rgba(40,30,10,0.2); }
.exp-card summary {
  list-style: none;
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  cursor: pointer;
}
.exp-card summary::-webkit-details-marker { display: none; }
.exp-summary { flex: 1; }
.exp-date {
  font-size: 0.74rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--gold);
  display: block;
  margin-bottom: 6px;
}
.exp-summary h3 { font-size: 1.05rem; margin-bottom: 4px; }
.exp-org { font-size: 0.86rem; color: var(--ink-soft); font-style: italic; }
.exp-toggle {
  flex-shrink: 0;
  width: 26px;
  height: 26px;
  border-radius: 50%;
  border: 1px solid var(--line);
  position: relative;
  margin-top: 2px;
}
.exp-toggle::before, .exp-toggle::after {
  content: '';
  position: absolute;
  top: 50%; left: 50%;
  background: var(--ink);
  transition: transform 0.25s var(--ease);
}
.exp-toggle::before { width: 10px; height: 1.5px; transform: translate(-50%,-50%); }
.exp-toggle::after { width: 1.5px; height: 10px; transform: translate(-50%,-50%); }
.exp-card[open] .exp-toggle::after { transform: translate(-50%,-50%) rotate(90deg) scaleY(0); }
.exp-detail { margin-top: 14px; padding-top: 14px; border-top: 1px solid var(--line); }
.exp-detail p { color: var(--ink-soft); font-size: 0.92rem; }

/* ---------- STARTUPS ---------- */
.startups { background: var(--bg); }

.startup-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  align-items: start;
  gap: 28px;
}
@media (max-width: 720px) { .startup-grid { grid-template-columns: 1fr; } }

.startup-card {
  border-radius: 10px;
  overflow: hidden;
  background: var(--bg-warm);
  border: 1px solid var(--line);
  transition: transform 0.3s var(--ease), box-shadow 0.3s var(--ease);
}
.startup-card:hover { transform: translateY(-6px); box-shadow: 0 24px 48px -16px rgba(40,30,10,0.18); }

.startup-body { padding: 26px 26px 28px; }
.startup-body h3 { font-size: 1.05rem; line-height: 1.35; margin-bottom: 10px; }
.startup-body p { color: var(--ink-soft); font-size: 0.92rem; margin-bottom: 16px; }

.startup-tag {
  display: inline-block;
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--olive-deep);
  background: var(--bg);
  padding: 5px 12px;
  border-radius: 999px;
  margin-bottom: 14px;
}

/* ---------- DROPDOWN "MORE INFO" (replaces learn-more links) ---------- */
.more-detail { margin-top: 4px; }
.more-detail summary {
  list-style: none;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.88rem;
  font-weight: 500;
  color: var(--ink);
  cursor: pointer;
}
.more-detail summary::-webkit-details-marker { display: none; }
.more-detail .chevron { display: inline-block; transition: transform 0.25s var(--ease); }
.more-detail[open] .chevron { transform: rotate(180deg); }
.more-body { margin-top: 10px; padding-top: 10px; border-top: 1px solid var(--line); }
.more-body p { color: var(--ink-soft); font-size: 0.9rem; }

/* ---------- PUBLICATIONS ---------- */
.publications { background: var(--bg); }

.pub-list {
  display: flex;
  flex-direction: column;
}
.pub-item {
  display: grid;
  grid-template-columns: 150px 1fr;
  gap: 24px;
  padding: 28px 0;
  border-top: 1px solid var(--line);
  align-items: start;
}
.pub-list .pub-item:last-child { border-bottom: 1px solid var(--line); }
.pub-meta { padding-top: 4px; display: flex; flex-direction: column; gap: 10px; }
.pub-year { font-size: 0.95rem; font-weight: 700; color: var(--ink); }
.pub-status {
  display: inline-flex;
  flex-direction: column;
  gap: 3px;
  background: var(--bg-warm);
  border-radius: 8px;
  padding: 8px 12px;
  max-width: fit-content;
}
.pub-status-label {
  font-size: 0.68rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  font-weight: 700;
  color: var(--olive-deep);
}
.pub-status-journal {
  font-size: 0.78rem;
  font-style: italic;
  color: var(--ink-soft);
}
.pub-body h3 { font-size: 1.1rem; line-height: 1.4; margin-bottom: 6px; }
.pub-body p { color: var(--ink-soft); font-size: 0.92rem; margin-bottom: 14px; max-width: none; text-align: justify; text-justify: inter-word; }
.pub-body .more-body p { text-align: left; }

/* ---------- CONTACT ---------- */
.contact { background: var(--bg); color: var(--ink); }
.contact h2 { color: var(--ink); margin-bottom: 10px; max-width: 600px; }
.contact h3 {
  text-align: left;
  font-size: 1.3rem;
  font-weight: 500;
  color: var(--ink-soft);
  margin-bottom: 24px;
  max-width: 600px;
}
.contact-sub { color: var(--ink-soft); margin-bottom: 40px; text-align: justify; text-justify: inter-word; max-width: none; }

.contact-links {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}
.contact-pill {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 12px 22px;
  border: 1px solid var(--line);
  border-radius: 999px;
  font-size: 0.92rem;
  transition: background 0.25s var(--ease), transform 0.25s var(--ease);
  cursor: pointer;
}
.contact-pill svg { width: 18px; height: 18px; }
.contact-pill:hover { background: var(--bg-warm); transform: translateY(-2px); }

/* ---------- ANIMATIONS ---------- */
.fade-up, .fade-in-up {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.7s var(--ease), transform 0.7s var(--ease);
}
.fade-up.in-view, .fade-in-up.in-view { opacity: 1; transform: translateY(0); }
.delay-1 { transition-delay: 0.08s; }
.delay-2 { transition-delay: 0.16s; }
.delay-3 { transition-delay: 0.24s; }
.delay-4 { transition-delay: 0.32s; }

@media (prefers-reduced-motion: reduce) {
  .fade-up, .fade-in-up { opacity: 1; transform: none; transition: none; }
  html { scroll-behavior: auto; }
}

/* ---------- RESPONSIVE ---------- */
@media (min-width: 1180px) {
  .vert-label-wrap { display: block; }
}

@media (max-width: 860px) {
  .hero { grid-template-columns: 1fr; min-height: auto; }
  .hero-text { padding: 40px 28px; }
  .hero-photo img { min-height: 44vh; }
  .about-grid { grid-template-columns: 1fr; gap: 48px; }
  .about-side { border-left: none; padding-left: 0; padding-top: 28px; border-top: 1px solid var(--line); }
  .section-inner { padding: 0 24px; }
  .experience, .startups, .publications, .contact { min-height: auto; padding: 80px 0; }
  .pub-item { grid-template-columns: 1fr; gap: 10px; }
  .section-head { flex-direction: column; align-items: flex-start; gap: 14px; }
  .nav-links {
    position: absolute;
    top: calc(100% + 10px);
    left: 0;
    right: 0;
    flex-direction: column;
    gap: 0;
    background: var(--bg);
    border: 1px solid var(--line);
    border-radius: 18px;
    padding: 10px;
    display: none;
  }
  .nav-links.open { display: flex; }
  .nav-links a { padding: 12px 14px; }
  .nav-toggle { display: flex; }
}

@media (max-width: 480px) {
  body { font-size: 14.5px; }
  .nav { left: 10px; right: 10px; padding: 10px 16px; }
  .nav-mark { font-size: 0.95rem; }
  .hero-text { padding: 28px 20px; }
  .hero-photo img { min-height: 34vh; }
  .hero-name { font-size: clamp(2.6rem, 14vw, 3.8rem); }
  .hero-sub { font-size: 0.92rem; }
  .bio-degree, .bio-school { font-size: 0.92rem; }
  .uni-logo { width: 13px; height: 13px; }
  .about h2, .experience h2, .startups h2, .publications h2, .contact h2 { font-size: clamp(1.4rem, 6vw, 1.8rem); }
  .contact h3 { font-size: 1.05rem; }
  .about, .experience, .startups, .publications { padding: 64px 0; }
  .contact { padding: 64px 0; }
  .section-inner { padding: 0 20px; }
  .startup-grid, .exp-grid { gap: 14px; }
  .exp-card, .startup-card { padding: 18px 18px; }
  .exp-summary h3, .startup-body h3 { font-size: 0.96rem; }
  .exp-date, .startup-tag, .pub-status-journal { font-size: 0.66rem; }
  .toggle-all-btn { font-size: 0.76rem; padding: 6px 14px; }
  .pub-body h3 { font-size: 0.98rem; }
}