@import url('https://fonts.googleapis.com/css2?family=Fraunces:opsz,wght@9..144,400;9..144,500;9..144,600;9..144,700&family=IBM+Plex+Sans:wght@400;500;600;700&family=IBM+Plex+Mono:wght@400;500&display=swap');

/* ============ Tokens ============ */
:root{
  --violet: #32174D;
  --violet-deep: #200D33;
  --violet-soft: #4A2A6B;
  --ink: #241134;
  --ink-soft: #5B5266;
  --paper: #F7F5F9;
  --panel: #EEE9F3;
  --panel-line: #DED6E6;
  --amber: #B5702F;
  --amber-deep: #8F5620;
  --amber-soft: #E8CBA6;
  --white: #FFFFFF;

  --font-display: 'Fraunces', Georgia, 'Times New Roman', serif;
  --font-body: 'IBM Plex Sans', 'Segoe UI', Helvetica, Arial, sans-serif;
  --font-mono: 'IBM Plex Mono', 'SFMono-Regular', Consolas, monospace;

  --max-w: 1080px;
  --radius: 6px;
}

*, *::before, *::after{ box-sizing: border-box; }
html{ scroll-behavior: smooth; }

body{
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

img, svg{ max-width: 100%; display: block; }

a{ color: var(--amber-deep); text-decoration: none; }
a:hover{ text-decoration: underline; text-underline-offset: 3px; }
a:focus-visible, button:focus-visible{
  outline: 2px solid var(--violet);
  outline-offset: 3px;
  border-radius: 2px;
}

h1, h2, h3{
  font-family: var(--font-display);
  color: var(--violet-deep);
  margin: 0 0 0.5em;
  font-weight: 600;
}

.wrap{
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 24px;
}

.eyebrow{
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  color: var(--amber-deep);
  display: block;
  margin-bottom: 0.6em;
}

/* ============ Header / Nav ============ */
.site-header{
  border-bottom: 1px solid var(--panel-line);
  background: rgba(247,245,249,0.92);
  backdrop-filter: blur(6px);
  position: sticky;
  top: 0;
  z-index: 50;
}
.header-inner{
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 16px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.brand{
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.08rem;
  color: var(--violet-deep);
}
.brand:hover{ text-decoration: none; }
.brand-mark{ width: 26px; height: 26px; flex-shrink: 0; }

.nav-toggle{
  display: none;
  background: none;
  border: 1px solid var(--panel-line);
  border-radius: var(--radius);
  padding: 8px 12px;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--violet-deep);
  cursor: pointer;
}

.nav-links{
  list-style: none;
  display: flex;
  gap: 28px;
  margin: 0;
  padding: 0;
}
.nav-links a{
  color: var(--ink);
  font-size: 0.95rem;
  font-weight: 500;
  padding: 4px 2px;
  border-bottom: 2px solid transparent;
}
.nav-links a:hover{ text-decoration: none; border-bottom-color: var(--amber); }
.nav-links a[aria-current="page"]{
  color: var(--violet-deep);
  border-bottom-color: var(--violet);
}

@media (max-width: 700px){
  .nav-toggle{ display: inline-block; }
  .nav-links{
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--paper);
    border-bottom: 1px solid var(--panel-line);
    flex-direction: column;
    gap: 0;
    padding: 8px 24px 16px;
    display: none;
  }
  .nav-links.is-open{ display: flex; }
  .nav-links li{ border-top: 1px solid var(--panel-line); }
  .nav-links a{ display: block; padding: 12px 2px; }
}

/* ============ Hero ============ */
.hero{
  padding: 72px 0 56px;
  border-bottom: 1px solid var(--panel-line);
}
.hero-inner{
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 48px;
  align-items: center;
}
@media (max-width: 800px){
  .hero-inner{ grid-template-columns: 1fr; }
}
.hero h1{
  font-size: clamp(2rem, 4vw, 2.85rem);
  line-height: 1.15;
  letter-spacing: -0.01em;
}
.hero .lede{
  font-size: 1.1rem;
  color: var(--ink-soft);
  max-width: 46ch;
  margin: 0 0 28px;
}
.hero-graphic{ opacity: 0; animation: rise 0.9s ease-out 0.15s forwards; }
@media (prefers-reduced-motion: reduce){ .hero-graphic{ opacity: 1; animation: none; } }

@keyframes rise{
  from{ opacity: 0; transform: translateY(10px); }
  to{ opacity: 1; transform: translateY(0); }
}

/* ============ Tags / pills ============ */
.tag-row{
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0 0 8px;
  padding: 0;
  list-style: none;
}
.tag{
  font-family: var(--font-mono);
  font-size: 0.74rem;
  letter-spacing: 0.02em;
  color: var(--violet-deep);
  background: var(--panel);
  border: 1px solid var(--panel-line);
  border-radius: 999px;
  padding: 5px 12px;
  white-space: nowrap;
}
.tag.amber{
  color: var(--amber-deep);
  background: #FBF1E4;
  border-color: var(--amber-soft);
}

/* ============ Quick facts strip ============ */
.facts{
  border-top: 1px solid var(--panel-line);
  padding: 28px 0;
}
.facts-grid{
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
@media (max-width: 800px){
  .facts-grid{ grid-template-columns: repeat(2, 1fr); }
}
.facts dt{
  font-family: var(--font-mono);
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--amber-deep);
  margin-bottom: 4px;
}
.facts dd{
  margin: 0;
  font-size: 0.95rem;
  color: var(--ink);
}

/* ============ Sections ============ */
.section{ padding: 56px 0; }
.section + .section{ border-top: 1px solid var(--panel-line); }
.section-head{ max-width: 62ch; margin-bottom: 32px; }
.section-head p{ color: var(--ink-soft); font-size: 1.05rem; }
.section-title-lg{
  font-size: clamp(2rem, 4vw, 2.7rem);
  line-height: 1.1;
  letter-spacing: -0.01em;
  margin-bottom: 0.4em;
}

.thread-grid{
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}
@media (max-width: 800px){
  .thread-grid{ grid-template-columns: 1fr; }
}
.thread{
  border-top: 3px solid var(--violet);
  padding-top: 14px;
}
.thread h3{ font-size: 1.15rem; margin-bottom: 8px; }
.thread p{ color: var(--ink-soft); font-size: 0.95rem; margin: 0 0 10px; }
.thread a{ font-family: var(--font-mono); font-size: 0.82rem; }

/* ============ Buttons ============ */
.btn{
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.92rem;
  padding: 11px 20px;
  border-radius: var(--radius);
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform 0.12s ease, box-shadow 0.12s ease;
}
.btn:hover{ text-decoration: none; }
.btn-primary{
  background: var(--violet);
  color: var(--white);
}
.btn-primary:hover{ background: var(--violet-deep); box-shadow: 0 4px 14px rgba(50,23,77,0.25); }
.btn-outline{
  background: transparent;
  border-color: var(--violet);
  color: var(--violet-deep);
}
.btn-outline:hover{ background: var(--panel); }
.btn-ghost{
  background: var(--panel);
  color: var(--ink-soft);
  border-color: var(--panel-line);
  cursor: default;
  font-weight: 500;
}
.btn-ghost:hover{ text-decoration: none; }

/* ============ Project cards ============ */
.project-grid{
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}
@media (max-width: 800px){
  .project-grid{ grid-template-columns: 1fr; }
}
.card{
  background: var(--white);
  border: 1px solid var(--panel-line);
  border-radius: 10px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  opacity: 0;
  transform: translateY(14px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}
.card.is-visible{ opacity: 1; transform: translateY(0); }
@media (prefers-reduced-motion: reduce){
  .card{ opacity: 1; transform: none; }
}

.card-media{
  width: 100%;
  aspect-ratio: 16 / 10;
  background: var(--panel);
  border-bottom: 1px solid var(--panel-line);
  position: relative;
  overflow: hidden;
}
.card-media img{
  width: 100%;
  height: 100%;
  object-fit: contain;
  object-position: center;
}

.card-body{
  padding: 20px 22px 22px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  flex-grow: 1;
}

.card-top{ display: flex; align-items: center; justify-content: space-between; gap: 12px; flex-wrap: wrap; }
.card h3{ font-size: 1.15rem; line-height: 1.26; margin: 0; }
.status{
  font-family: var(--font-mono);
  font-size: 0.68rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  padding: 4px 10px;
  border-radius: 999px;
  white-space: nowrap;
  flex-shrink: 0;
}
.status-published{ background: #E8F0E4; color: #3B6B2B; }
.status-award{ background: #FBF1E4; color: var(--amber-deep); }
.status-progress{ background: var(--panel); color: var(--ink-soft); }
.card p.desc{ color: var(--ink-soft); font-size: 0.9rem; margin: 0; }
.card-meta{ font-family: var(--font-mono); font-size: 0.76rem; color: var(--ink-soft); margin: 0; }
.card-cta{ margin-top: auto; padding-top: 6px; display: flex; flex-wrap: wrap; gap: 10px; }

/* ============ Publications ============ */
.pub-group{ margin-bottom: 40px; }
.pub-group h2{
  font-size: 0.85rem;
  font-family: var(--font-mono);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--amber-deep);
  border-bottom: 1px solid var(--panel-line);
  padding-bottom: 10px;
  margin-bottom: 20px;
}
.pub{
  display: grid;
  grid-template-columns: 64px 1fr;
  gap: 18px;
  padding: 16px 0;
  border-bottom: 1px solid var(--panel-line);
}
.pub:last-child{ border-bottom: none; }
.pub-year{
  font-family: var(--font-mono);
  color: var(--violet);
  font-weight: 500;
  font-size: 0.92rem;
  padding-top: 2px;
}
.pub-title{ font-weight: 600; color: var(--ink); margin: 0 0 4px; font-size: 1rem; }
.pub-authors{ color: var(--ink-soft); font-size: 0.9rem; margin: 0 0 6px; }
.pub-authors b{ color: var(--ink); font-weight: 600; }
.pub-venue{ font-family: var(--font-mono); font-size: 0.8rem; color: var(--ink-soft); }
.pub-award{
  display: inline-block;
  margin-top: 6px;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--amber-deep);
  background: #FBF1E4;
  border-radius: 999px;
  padding: 3px 10px;
}
.pub-links{ margin-top: 6px; font-size: 0.86rem; }
.pub-links a{ margin-right: 14px; }

/* ============ Resume page ============ */
.resume-frame{
  border: 1px solid var(--panel-line);
  border-radius: 10px;
  overflow: hidden;
  background: var(--white);
  height: 82vh;
  min-height: 500px;
}
.resume-frame iframe{ width: 100%; height: 100%; border: 0; }
.resume-actions{ display: flex; gap: 12px; margin-bottom: 20px; flex-wrap: wrap; }

/* ============ Footer ============ */
.site-footer{
  border-top: 1px solid var(--panel-line);
  padding: 32px 0 48px;
  margin-top: 24px;
}
.footer-inner{
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  font-size: 0.88rem;
  color: var(--ink-soft);
}
.footer-links{ list-style: none; display: flex; gap: 18px; margin: 0; padding: 0; }
.footer-links a{ color: var(--ink-soft); }
.footer-links a:hover{ color: var(--violet-deep); }