/* -----------------------------
   Base + Theme
------------------------------ */
:root{
  --bg: #ffffff;
  --card: #ffffff;
  --text: #0f172a;
  --muted: #475569;
  --border: #e2e8f0;
  --link: #2563eb;
  --shadow: 0 10px 24px rgba(15, 23, 42, 0.08);
  --radius: 18px;
}

@media (prefers-color-scheme: dark){
  :root{
    --bg: #0b1220;
    --card: #0f172a;
    --text: #e5e7eb;
    --muted: #9ca3af;
    --border: #1f2937;
    --link: #60a5fa;
    --shadow: 0 18px 36px rgba(0,0,0,.35);
  }
}

*{ box-sizing: border-box; }
html{ scroll-behavior: smooth; }
body{
  margin:0;
  background: var(--bg);
  color: var(--text);
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial;
  line-height: 1.65;
}

a{
  color: var(--link);
  text-decoration: none;
}
a:hover{ text-decoration: underline; }

.container{
  max-width: 1040px;
  margin: 0 auto;
  padding: 28px 18px 72px;
}

/* -----------------------------
   Sticky Nav
------------------------------ */
.nav{
  position: sticky;
  top: 0;
  z-index: 100;
  border-bottom: 1px solid var(--border);
  background: color-mix(in srgb, var(--bg) 82%, transparent);
  backdrop-filter: blur(10px);
}

.nav-inner{
  max-width: 1040px;
  margin: 0 auto;
  padding: 10px 18px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.nav-brand{
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--text);
}

.nav-links{
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.nav-links a{
  font-size: 14px;
  color: var(--muted);
  padding: 7px 10px;
  border-radius: 12px;
}
.nav-links a:hover{
  color: var(--text);
  background: color-mix(in srgb, var(--border) 45%, transparent);
  text-decoration: none;
}

/* -----------------------------
   Hero
------------------------------ */
.hero{
  display: grid;
  grid-template-columns: 1.35fr 0.65fr;
  gap: 26px;
  align-items: center;
  margin-top: 18px;
}

@media (max-width: 900px){
  .hero{
    grid-template-columns: 1fr;
  }
}

.name{
  font-size: 44px;
  line-height: 1.1;
  letter-spacing: -0.03em;
  margin: 0 0 10px;
}

.tagline{
  margin: 0 0 16px;
  color: var(--muted);
  font-size: 16px;
}

.bio{
  margin: 0 0 14px;
  color: var(--text);
}

.callout{
  margin: 14px 0 18px;
  padding: 12px 14px;
  border: 1px solid var(--border);
  background: color-mix(in srgb, var(--card) 88%, transparent);
  border-radius: 14px;
  color: var(--text);
}

.cta{
  display:flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 8px;
}

.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  padding: 10px 12px;
  border: 1px solid var(--border);
  background: var(--card);
  border-radius: 14px;
  font-size: 14px;
  color: var(--text);
  box-shadow: none;
}
.btn:hover{
  box-shadow: var(--shadow);
  text-decoration: none;
}
.btn.primary{
  background: color-mix(in srgb, var(--link) 12%, var(--card));
  border-color: color-mix(in srgb, var(--link) 30%, var(--border));
}

/* -----------------------------
   Sections + Cards
------------------------------ */
.divider{
  border: none;
  height: 1px;
  background: var(--border);
  margin: 26px 0;
}

.section-head{
  display:flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  margin: 6px 0 14px;
}
.section h2{
  margin: 0;
  font-size: 20px;
  letter-spacing: -0.01em;
}

.cards{
  display: grid;
  gap: 14px;
}

.card{
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: 16px;
  padding: 14px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}

@media (max-width: 760px){
  .card{
    grid-template-columns: 1fr;
  }
}

.card-media{
  width: 100%;
  border-radius: 14px;
  border: 1px solid var(--border);
  overflow: hidden;
  background: color-mix(in srgb, var(--border) 25%, transparent);
}

.card-media img{
  width: 100%;
  height: 100%;
  object-fit: cover;
  display:block;
}

.card-media.logo{
  display:flex;
  align-items:center;
  justify-content:center;
  padding: 18px;
}
.card-media.logo img{
  width: min(180px, 80%);
  height: auto;
  object-fit: contain;
}

.card-body{ padding: 2px 2px 4px; }

.card-top{
  display:flex;
  gap: 10px;
  align-items: flex-start;
  justify-content: space-between;
}

.card-title{
  margin: 0;
  font-size: 16px;
  letter-spacing: -0.01em;
  font-weight: 700;
}

.badge{
  font-size: 12px;
  color: var(--muted);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 4px 10px;
  white-space: nowrap;
}

.authors{
  margin: 8px 0 10px;
  color: var(--muted);
  font-size: 14px;
}

.desc{
  margin: 8px 0 10px;
  color: var(--text);
}

.links{
  display:flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
}

.chip{
  display:inline-flex;
  align-items:center;
  gap: 8px;
  padding: 7px 10px;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: color-mix(in srgb, var(--card) 88%, transparent);
  color: var(--text);
  font-size: 13px;
}
.chip:hover{
  text-decoration: none;
  box-shadow: var(--shadow);
}

.chip.disabled{
  opacity: 0.55;
  cursor: not-allowed;
}

.stars{
  height: 20px;
}

/* Hover video effect (MonoHuman) */
.video-wrap{
  position: relative;
}
.video-overlay{
  position:absolute;
  inset:0;
  opacity:0;
  transition: opacity 0.2s ease;
}
.video-overlay video{
  width:100%;
  height:100%;
  object-fit: cover;
  display:block;
}

/* Compact cards for internship */
.card.compact{
  grid-template-columns: 160px 1fr;
}
@media (max-width: 760px){
  .card.compact{ grid-template-columns: 1fr; }
}

/* -----------------------------
   Lists + Footer
------------------------------ */
.list{
  margin: 0;
  padding-left: 18px;
  color: var(--text);
}
.list li{ margin: 8px 0; }

.list li{
  font-size: 18px;     /* try 16–18px */
  line-height: 1.6;
}

.footer{
  margin-top: 34px;
  padding-top: 14px;
  border-top: 1px solid var(--border);
  color: var(--muted);
  font-size: 13px;
  text-align: right;
}

/* -----------------------------
   HERO RIGHT: 3D model card (default visible, no portrait)
   This preserves the original two-column hero layout.
------------------------------ */
.hero-photo.hero-3d-card{
  border-radius: 22px;
  overflow: hidden;
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
  background: var(--card);
  display: grid;
  /* grid-template-rows: auto 1fr; */
  grid-template-rows: 1fr;
  min-height: 420px; /* keeps the right column visually balanced */
}

@media (max-width: 900px){
  .hero-photo.hero-3d-card{
    min-height: 380px;
  }
}

/* Header bar */
.photo-3d-top{
  display:flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  padding: 10px 12px;
  border-bottom: 1px solid var(--border);
}

.photo-3d-title{
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--text);
}

.photo-3d-sub{
  font-size: 12px;
  color: var(--muted);
  white-space: nowrap;
}

/* Stage area holds model-viewer */
.photo-3d-stage{
  position: relative;
  min-height: 0; /* important for CSS grid children to size correctly */
}

/* model-viewer must have explicit height */
#mvInline{
  width: 100%;
  height: 100%;
  display: block;
  background: transparent;
}

.card-video{
  width: 100%;
  height: 100%;
  display: block;
  object-fit: cover;
}

/* Keep bullets/indent */
.list.list-split{
  padding-left: 18px;      /* keep your original indent */
  list-style-position: outside;
}

.list.list-split li{
  margin: 8px 0;           /* keep your original spacing */
}

/* Two-column layout inside each li */
.list.list-split .row{
  display: flex;
  justify-content: space-between;
  gap: 16px;
}

.list.list-split .item-main{
  flex: 1;
  min-width: 0;
}

.list.list-split .item-time{
  white-space: nowrap;
  color: var(--muted);
}

/* Mobile: stack */
@media (max-width: 520px){
  .list.list-split .row{
    flex-direction: column;
    gap: 4px;
  }
}