/* ===== RESET & BASE ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  /* === Paleta institucional UTA === */
  --uta-blue:     #0B3A8C;   /* azul UTA principal */
  --uta-blue-mid: #1A5BBF;   /* azul UTA intermedio */
  --uta-blue-lit: #2E7DD1;   /* azul claro para textos sobre fondo oscuro */
  --uta-gold:     #F5C300;   /* amarillo/dorado UTA */
  --uta-gold-dim: #C99E00;   /* dorado más apagado */
  --white:        #F0F4FF;

  /* === Fondos (espacio oscuro + identidad UTA) === */
  --bg:       #06090f;
  --bg2:      #0c1120;
  --bg3:      #111829;
  --card-bg:  #0f1628;

  /* === Texto === */
  --text:     #edf0f8;
  --text2:    #8494b8;

  /* === Bordes === */
  --border:   #1c2640;
  --border2:  #263354;

  /* === Alias de acento === */
  --accent:   var(--uta-blue-lit);
  --accent2:  var(--uta-gold);
  --gold:     var(--uta-gold);
  --green:    #34d399;

  --radius:    10px;
  --radius-lg: 16px;
  --font-body: 'Inter', sans-serif;
  --font-head: 'Space Grotesk', sans-serif;
  --max-w:     1100px;
  --nav-h:     70px;
  --shadow:    0 6px 32px rgba(0,0,0,.5);
}

html { scroll-behavior: smooth; }

body {
  background: url('../img/fondo.jpg') center/cover fixed no-repeat;
  background-color: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.7;
}

a { color: var(--accent); text-decoration: none; transition: color .2s; }
a:hover { color: #6aaeff; }
img { max-width: 100%; display: block; }

/* ===== LAYOUT ===== */
.container { width: 100%; max-width: var(--max-w); margin: 0 auto; padding: 0 1.5rem; }

.grid-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: start;
}

.section { padding: 5rem 0; }
.section.bg-dark { background: rgba(12, 17, 32, 0.82); }

/* ===== HEADER / NAV ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 200;
  background: rgba(11, 35, 85, 0.96);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 2px solid var(--uta-gold);
  height: var(--nav-h);
  overflow: visible;
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--nav-h);
  gap: 1.5rem;
}

/* Logo area: logos de UTA e IAI + texto */
.nav-logo {
  display: flex;
  align-items: center;
  gap: .75rem;
  flex-shrink: 0;
}

.nav-logo-imgs a {
  display: block;
  line-height: 0;
}

.nav-logo-imgs {
  display: flex;
  align-items: center;
  gap: .5rem;
}

.nav-logo-imgs img {
  height: 42px;
  width: auto;
  object-fit: contain;
  display: block;
}

.nav-logo-text {
  font-family: var(--font-head);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--white);
  letter-spacing: .01em;
  line-height: 1.2;
  display: flex;
  flex-direction: column;
  text-decoration: none;
}
.nav-logo-text:hover { color: var(--white); }

.nav-logo-text small {
  font-size: .65rem;
  font-weight: 400;
  color: var(--uta-gold);
  letter-spacing: .06em;
  text-transform: uppercase;
}

.logo-sep {
  width: 1px;
  height: 36px;
  background: rgba(255,255,255,.18);
  flex-shrink: 0;
}

.nav-links {
  display: flex;
  list-style: none;
  gap: 0;
  align-items: center;
}

.nav-links > li > a {
  display: block;
  color: rgba(240,244,255,.8);
  font-size: .875rem;
  font-weight: 500;
  letter-spacing: .02em;
  padding: .4rem .8rem;
  border-radius: 6px;
  transition: color .2s, background .2s;
}

.nav-links > li > a:hover,
.nav-links > li > a.active {
  color: var(--white);
  background: rgba(245,195,0,.12);
}

.nav-links > li > a.active {
  color: var(--uta-gold);
}

/* ===== DROPDOWN ===== */
.dropdown { position: relative; }

.dropdown-menu {
  position: absolute;
  top: calc(100% + 6px);
  left: 0;
  background: #0d1830;
  border: 1px solid var(--uta-blue-mid);
  border-top: 2px solid var(--uta-gold);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  display: none;
  min-width: 240px;
  padding: .4rem 0;
  z-index: 999;
  overflow: hidden;
}

.dropdown-menu li { list-style: none; }

.dropdown-menu a {
  display: flex;
  align-items: center;
  gap: .6rem;
  padding: .65rem 1.1rem;
  color: rgba(240,244,255,.75);
  font-size: .875rem;
  transition: color .2s, background .2s, padding-left .2s;
}

.dropdown-menu a::before {
  content: '›';
  color: var(--uta-gold);
  font-size: 1rem;
  opacity: 0;
  transform: translateX(-4px);
  transition: opacity .2s, transform .2s;
}

.dropdown-menu a:hover {
  background: rgba(245,195,0,.08);
  color: var(--white);
  padding-left: 1.3rem;
}

.dropdown-menu a:hover::before { opacity: 1; transform: translateX(0); }

.dropdown.open .dropdown-menu { display: block; }

.nav-toggle {
  display: none;
  background: none;
  border: 1px solid rgba(245,195,0,.4);
  color: var(--white);
  font-size: 1.25rem;
  cursor: pointer;
  padding: .35rem .7rem;
  border-radius: 6px;
  transition: all .2s;
}
.nav-toggle:hover { background: rgba(245,195,0,.1); border-color: var(--uta-gold); }

.lang-switch {
  display: flex;
  align-items: center;
  gap: .25rem;
  font-size: .72rem;
  font-weight: 700;
  letter-spacing: .07em;
  flex-shrink: 0;
  margin-left: .5rem;
}
.lang-btn {
  color: rgba(240,244,255,.4);
  padding: .18rem .38rem;
  border-radius: 4px;
  transition: color .2s, background .2s;
  text-decoration: none;
  cursor: pointer;
}
.lang-btn:hover { color: var(--white); }
.lang-btn.active { color: var(--uta-gold); cursor: default; }
.lang-sep { color: rgba(240,244,255,.2); font-weight: 300; font-size: .8rem; }

/* ===== HERO ===== */
.hero {
  position: relative;
  min-height: 60vh;
  display: flex;
  align-items: center;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  background: linear-gradient(rgba(6,9,15,.65), rgba(6,9,15,.72));
}

.hero-bg::after {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse at 20% 50%, rgba(11,58,140,.20) 0%, transparent 60%),
    radial-gradient(ellipse at 80% 30%, rgba(245,195,0,.05) 0%, transparent 50%);
}

.hero-content {
  position: relative;
  z-index: 1;
  padding: 4rem 0;
  display: flex;
  align-items: center;
  gap: 3.5rem;
  width: 100%;
}

.hero-image-col {
  flex: 0 0 auto;
  width: clamp(220px, 34%, 400px);
}

.hero-presentation-img {
  width: 100%;
  height: auto;
  border-radius: var(--radius-lg);
  border: 2px solid rgba(245,195,0,.30);
  box-shadow: 0 8px 40px rgba(0,0,0,.65);
  display: block;
  object-fit: cover;
}

.hero-main-col {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 1.2rem;
  align-items: flex-start;
}

.img-credit-details {
  margin-top: .35rem;
  font-size: .63rem;
}
.img-credit-details summary {
  cursor: pointer;
  color: white;
  list-style: none;
  display: inline-flex;
  align-items: center;
  gap: .28rem;
  user-select: none;
  letter-spacing: .04em;
}
.img-credit-details summary::-webkit-details-marker { display: none; }
.img-credit-details summary::before {
  content: '▸';
  font-size: .55rem;
  transition: transform .2s;
  display: inline-block;
}
.img-credit-details[open] summary::before { transform: rotate(90deg); }
.img-credit-details summary:hover { color: rgba(132,148,184,.75); }
.img-credit-body {
  padding: .35rem .4rem .1rem;
  color: rgba(132,148,184,.6);
  line-height: 1.65;
}
.img-credit-body a {
  color: rgba(132,148,184,.65);
  text-decoration: underline;
  text-decoration-color: rgba(132,148,184,.2);
}
.img-credit-body a:hover { color: var(--uta-gold); }

.hero-tag {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  font-size: .72rem;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--uta-gold);
  background: rgba(245,195,0,.08);
  border: 1px solid rgba(245,195,0,.25);
  padding: .3rem .9rem;
  border-radius: 20px;
  margin-bottom: 1.5rem;
}

.hero h1 {
  font-family: var(--font-head);
  font-size: clamp(2.4rem, 5.5vw, 4rem);
  font-weight: 700;
  line-height: 1.1;
  margin-bottom: 0;
  letter-spacing: -.02em;
  color: var(--white);
}

.hero-h1-sub {
  display: block;
  font-size: .55em;
  color: var(--uta-gold);
  font-weight: 500;
  letter-spacing: .02em;
}

.hero-desc {
  color: rgba(224, 232, 252, 0.85);
  font-size: .95rem;
  line-height: 1.8;
  margin: 0;
}
.hero-desc strong { color: var(--white); }

.hero-actions { display: flex; gap: 1rem; flex-wrap: wrap; }

/* ===== STATS SECTION ===== */
.stats-section { padding: 2rem 0 3rem; }

.stats-label {
  text-align: center;
  font-size: .78rem;
  font-weight: 600;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--uta-gold);
  margin-bottom: 1.5rem;
}

.stats-centered {
  display: flex;
  justify-content: center;
  gap: 2rem;
  flex-wrap: wrap;
}
.stats-centered .stat-card { width: 220px; flex-shrink: 0; }

/* ===== BUTTONS ===== */
.btn {
  display: inline-block;
  padding: .75rem 1.8rem;
  border-radius: var(--radius);
  font-weight: 600;
  font-size: .9rem;
  transition: all .22s;
  cursor: pointer;
  border: 2px solid transparent;
  letter-spacing: .01em;
}

.btn-primary {
  background: var(--uta-blue);
  color: #fff;
  border-color: var(--uta-blue-mid);
  box-shadow: 0 0 22px rgba(11,58,140,.4);
}
.btn-primary:hover {
  background: var(--uta-blue-mid);
  border-color: var(--uta-blue-lit);
  color: #fff;
  box-shadow: 0 0 30px rgba(26,91,191,.5);
  transform: translateY(-1px);
}

.btn-outline {
  border-color: var(--uta-gold);
  color: var(--uta-gold);
  background: transparent;
}
.btn-outline:hover {
  background: var(--uta-gold);
  color: #06090f;
  transform: translateY(-1px);
}

.btn-sm { padding: .45rem 1rem; font-size: .8rem; }
.full-width { width: 100%; text-align: center; }

/* ===== ABOUT ===== */
.about-text h2 { margin-bottom: 1.2rem; }
.about-text p { color: var(--text2); margin-bottom: .9rem; line-height: 1.8; }
.about-text p strong { color: var(--text); }

.about-stats {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 1rem;
}

@media (max-width: 1000px) {
  .about-stats { grid-template-columns: 1fr 1fr 1fr; }
}

.stat-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.7rem 1.5rem;
  text-align: center;
  display: flex;
  flex-direction: column;
  gap: .4rem;
  transition: border-color .2s, transform .2s;
}
.stat-card:hover { border-color: var(--uta-gold); transform: translateY(-2px); }

.stat-num {
  font-family: var(--font-head);
  font-size: 2.2rem;
  font-weight: 700;
  background: linear-gradient(135deg, var(--uta-blue-lit) 0%, var(--uta-gold) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.stat-label { font-size: .8rem; color: var(--text2); font-weight: 500; }

/* ===== SECTION TITLES ===== */
.section-title {
  font-family: var(--font-head);
  font-size: 1.9rem;
  font-weight: 700;
  margin-bottom: 2rem;
  letter-spacing: -.01em;
}
.section-title.centered { text-align: center; }

.section-header {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  margin-bottom: 2rem;
}

.link-more { font-size: .9rem; color: var(--accent); }

/* ===== RESEARCH CARDS ===== */
.cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1.5rem;
}

.card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 2rem 1.7rem;
  transition: border-color .25s, transform .25s, box-shadow .25s;
  position: relative;
  overflow: hidden;
}
.card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--uta-blue-mid), var(--uta-gold));
  opacity: 0;
  transition: opacity .25s;
}
.card:hover { border-color: var(--border2); transform: translateY(-4px); box-shadow: var(--shadow); }
.card:hover::before { opacity: 1; }

.card-icon { font-size: 2.2rem; margin-bottom: 1rem; }
.card h3 { font-family: var(--font-head); font-size: 1rem; margin-bottom: .5rem; font-weight: 600; }
.card p { color: var(--text2); font-size: .88rem; line-height: 1.7; }

/* ===== PAGE HERO ===== */
.page-hero {
  padding: 4.5rem 0 3.5rem;
  background: rgba(12, 17, 32, 0.85);
  border-bottom: 1px solid var(--border);
  position: relative;
  overflow: hidden;
}
.page-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at 70% 50%, rgba(11,58,140,.15) 0%, transparent 65%);
}
.page-hero > * { position: relative; z-index: 1; }

.page-hero h1 {
  font-family: var(--font-head);
  font-size: clamp(1.9rem, 4vw, 2.9rem);
  font-weight: 700;
  margin-bottom: .6rem;
  letter-spacing: -.01em;
}

.page-hero p { color: var(--text2); font-size: 1.05rem; }

/* Email domain notice */
.email-notice {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  font-size: .8rem;
  color: var(--text2);
  background: var(--card-bg);
  border: 1px solid var(--border2);
  padding: .4rem .9rem;
  border-radius: 6px;
  margin-top: .8rem;
}
.email-notice code {
  color: var(--uta-gold);
  font-family: monospace;
  font-size: .85rem;
}

/* ===== PUBLICATIONS ===== */
.pub-filter {
  display: flex;
  gap: .5rem;
  flex-wrap: wrap;
  margin-bottom: 2.5rem;
}

.filter-btn {
  background: var(--card-bg);
  border: 1px solid var(--border);
  color: var(--text2);
  padding: .4rem 1.1rem;
  border-radius: 20px;
  font-size: .85rem;
  cursor: pointer;
  transition: all .2s;
  font-family: var(--font-body);
}
.filter-btn:hover,
.filter-btn.active {
  background: var(--uta-blue);
  border-color: var(--uta-blue-mid);
  color: #fff;
  font-weight: 600;
}

.pub-year-group { margin-bottom: 2.5rem; }

.pub-year {
  font-family: var(--font-head);
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--uta-gold);
  margin-bottom: 1rem;
  padding-bottom: .5rem;
  border-bottom: 1px solid var(--border);
}

.pub-entry {
  display: flex;
  gap: 1.2rem;
  padding: 1.1rem 0;
  border-bottom: 1px solid var(--border);
  align-items: flex-start;
}

.pub-journal {
  background: rgba(26,91,191,.15);
  color: var(--uta-blue-lit);
  font-size: .7rem;
  font-weight: 700;
  letter-spacing: .06em;
  padding: .3rem .65rem;
  border-radius: 5px;
  white-space: nowrap;
  align-self: flex-start;
  margin-top: .15rem;
  border: 1px solid rgba(26,91,191,.3);
}

.pub-body { flex: 1; }
.pub-title { font-weight: 600; font-size: .95rem; margin-bottom: .3rem; line-height: 1.45; }
.pub-authors { color: var(--text2); font-size: .85rem; margin-bottom: .2rem; }
.pub-ref { color: var(--text2); font-size: .8rem; font-style: italic; margin-bottom: .6rem; }
.pub-links { display: flex; gap: .5rem; flex-wrap: wrap; }

.pub-link {
  font-size: .75rem;
  color: var(--text2);
  background: var(--border);
  padding: .2rem .6rem;
  border-radius: 4px;
  transition: all .2s;
}
.pub-link:hover { background: var(--uta-blue); color: #fff; }

.pub-ads-link {
  text-align: center;
  padding: 3rem 0 1rem;
  color: var(--text2);
}
.pub-ads-link p { margin-bottom: 1rem; }

/* Loading state for ADS fetch */
.pub-loading {
  text-align: center;
  padding: 3rem 0;
  color: var(--text2);
}
.pub-loading-spinner {
  width: 36px;
  height: 36px;
  border: 3px solid var(--border2);
  border-top-color: var(--uta-blue-lit);
  border-radius: 50%;
  animation: spin .8s linear infinite;
  margin: 0 auto 1rem;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ===== PROJECTS ===== */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 1.5rem;
}

.project-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.8rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  transition: border-color .25s, transform .25s, box-shadow .25s;
  position: relative;
  overflow: hidden;
}
.project-card::after {
  content: '';
  position: absolute;
  top: 0; left: 0;
  width: 4px; height: 100%;
  background: linear-gradient(180deg, var(--uta-blue-mid), var(--uta-gold));
  opacity: 0;
  transition: opacity .25s;
}
.project-card:hover { border-color: var(--border2); transform: translateY(-3px); box-shadow: var(--shadow); }
.project-card:hover::after { opacity: 1; }

.project-header { display: flex; justify-content: space-between; align-items: flex-start; gap: 1rem; }

.project-badge {
  font-size: .7rem;
  font-weight: 700;
  letter-spacing: .06em;
  padding: .25rem .7rem;
  border-radius: 20px;
  white-space: nowrap;
  flex-shrink: 0;
}
.badge-active {
  background: rgba(52,211,153,.12);
  color: var(--green);
  border: 1px solid rgba(52,211,153,.25);
}
.badge-completed {
  background: rgba(138,146,170,.1);
  color: var(--text2);
  border: 1px solid var(--border2);
}

.project-card h3 {
  font-family: var(--font-head);
  font-size: 1.05rem;
  font-weight: 600;
  line-height: 1.4;
  flex: 1;
}

.project-desc { color: var(--text2); font-size: .88rem; line-height: 1.75; flex: 1; }

.project-meta {
  display: flex;
  flex-direction: column;
  gap: .4rem;
  font-size: .8rem;
  color: var(--text2);
  border-top: 1px solid var(--border);
  padding-top: 1rem;
}

.project-meta-row { display: flex; gap: .5rem; align-items: flex-start; }
.project-meta-label { color: var(--text2); font-weight: 600; min-width: 90px; flex-shrink: 0; }
.project-meta-val { color: var(--text); }

.project-tags { display: flex; gap: .4rem; flex-wrap: wrap; margin-top: .3rem; }
.project-tag {
  font-size: .72rem;
  background: var(--border);
  color: var(--text2);
  padding: .15rem .55rem;
  border-radius: 4px;
}

/* ===== TEAM / ACADEMICS ===== */
.team-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(290px, 1fr));
  gap: 1.5rem;
}

.member-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: border-color .25s, transform .25s, box-shadow .25s;
}
.member-card:hover { border-color: var(--uta-blue-mid); transform: translateY(-3px); box-shadow: var(--shadow); }

/* Foto real */
.member-photo {
  width: 100%;
  aspect-ratio: 4/3;
  overflow: hidden;
}
.member-photo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: top center;
  transition: transform .35s;
}
.member-card:hover .member-photo img { transform: scale(1.04); }

/* Placeholder con iniciales */
.placeholder-photo {
  width: 100%;
  aspect-ratio: 4/3;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: .4rem;
  border-bottom: 1px solid var(--border);
}

.placeholder-initials {
  font-family: var(--font-head);
  font-size: 2.5rem;
  font-weight: 700;
  color: rgba(255,255,255,.9);
  text-shadow: 0 2px 8px rgba(0,0,0,.4);
}

.member-info { padding: 1.4rem; flex: 1; display: flex; flex-direction: column; gap: .35rem; }
.member-info h3 { font-family: var(--font-head); font-size: 1rem; font-weight: 600; }
.member-role {
  font-size: .8rem;
  color: var(--uta-gold);
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: .35rem;
}
.member-area { font-size: .78rem; color: var(--text2); }
.member-bio { font-size: .85rem; color: var(--text2); margin-top: .4rem; flex: 1; line-height: 1.65; }
.member-email { font-size: .8rem; color: var(--text2); font-family: monospace; margin-top: .2rem; }
.member-email span { color: var(--uta-blue-lit); }

.member-links { display: flex; gap: .6rem; margin-top: .8rem; flex-wrap: wrap; }
.member-links a {
  font-size: .78rem;
  color: var(--text2);
  background: var(--border);
  padding: .25rem .7rem;
  border-radius: 5px;
  transition: background .2s, color .2s;
  border: 1px solid transparent;
}
.member-links a:hover { background: var(--uta-blue); color: #fff; }

/* Postdoc card - more compact layout */
.postdoc-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: 1.2rem;
}

.postdoc-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.4rem 1.6rem;
  display: flex;
  align-items: flex-start;
  gap: 1.2rem;
  transition: border-color .25s, transform .2s;
}
.postdoc-card:hover { border-color: var(--uta-blue-mid); transform: translateY(-2px); }

.postdoc-avatar {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  overflow: hidden;
  flex-shrink: 0;
  border: 2px solid var(--border2);
}
.postdoc-avatar img { width: 100%; height: 100%; object-fit: cover; object-position: top; }
.postdoc-avatar-placeholder {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  border: 2px solid var(--border2);
  font-family: var(--font-head);
  font-size: 1.3rem;
  font-weight: 700;
  color: rgba(255,255,255,.85);
}

.postdoc-info { flex: 1; min-width: 0; }
.postdoc-info h3 { font-family: var(--font-head); font-size: .95rem; font-weight: 600; margin-bottom: .2rem; }
.postdoc-role { font-size: .78rem; color: var(--uta-gold); font-weight: 600; margin-bottom: .15rem; }
.postdoc-area { font-size: .75rem; color: var(--text2); margin-bottom: .5rem; }
.postdoc-links { display: flex; gap: .5rem; flex-wrap: wrap; }
.postdoc-links a {
  font-size: .72rem;
  color: var(--text2);
  background: var(--border);
  padding: .18rem .55rem;
  border-radius: 4px;
  transition: background .2s, color .2s;
}
.postdoc-links a:hover { background: var(--uta-blue); color: #fff; }

/* ===== CONTACT ===== */
.contact-grid { gap: 4rem; }

.contact-info h2 {
  font-family: var(--font-head);
  font-size: 1.4rem;
  margin-bottom: 1.5rem;
  font-weight: 700;
}

.contact-item {
  display: flex;
  gap: 1rem;
  margin-bottom: 1.5rem;
  align-items: flex-start;
}

.contact-icon { font-size: 1.2rem; margin-top: .1rem; }
.contact-item strong { display: block; font-size: .9rem; margin-bottom: .2rem; }
.contact-item p, .contact-item a { color: var(--text2); font-size: .9rem; }

.contact-map { margin-top: 1.5rem; border-radius: var(--radius); overflow: hidden; border: 1px solid var(--border2); }

.building-photo {
  margin-top: 1.2rem;
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--border2);
}
.building-photo img { width: 100%; height: 220px; object-fit: cover; }
.building-photo-placeholder {
  width: 100%; height: 160px;
  background: var(--bg3);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text2);
  font-size: .85rem;
  letter-spacing: .08em;
}

/* ===== FOOTER ===== */
.site-footer {
  background: rgba(5, 8, 16, 0.93);
  border-top: 2px solid var(--uta-gold);
  padding: 3.5rem 0 0;
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 2rem;
  padding-bottom: 2.5rem;
}

.footer-brand {
  font-family: var(--font-head);
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--white);
  display: flex;
  flex-direction: column;
  gap: .6rem;
}

.footer-logos {
  display: flex;
  align-items: center;
  gap: .6rem;
  margin-bottom: .3rem;
}
.footer-logos a { display: block; line-height: 0; opacity: .85; transition: opacity .2s; }
.footer-logos a:hover { opacity: 1; }
.footer-logos img { height: 38px; width: auto; object-fit: contain; }

.footer-brand p {
  font-size: .82rem;
  color: var(--text2);
  font-family: var(--font-body);
  font-weight: 400;
  line-height: 1.7;
}

.footer-links {
  display: flex;
  gap: 1.5rem;
  flex-wrap: wrap;
  align-items: center;
}
.footer-links a { font-size: .85rem; color: var(--text2); transition: color .2s; }
.footer-links a:hover { color: var(--uta-gold); }

.footer-bottom {
  border-top: 1px solid var(--border);
  padding: 1.2rem 0;
  text-align: center;
}
.footer-bottom p { font-size: .78rem; color: var(--text2); }

.photo-credits-bar {
  border-top: 1px solid rgba(28, 38, 64, .5);
  padding: .6rem 0;
}
.photo-credits-bar p {
  font-size: .68rem;
  color: rgba(132, 148, 184, .55);
  text-align: center;
  line-height: 1.5;
}
.photo-credits-bar a {
  color: rgba(132, 148, 184, .65);
  text-decoration: underline;
  text-decoration-color: rgba(132, 148, 184, .25);
}
.photo-credits-bar a:hover { color: var(--uta-gold); }

/* ===== RESPONSIVE ===== */
@media (max-width: 900px) {
  .grid-2 { grid-template-columns: 1fr; }
  .contact-grid { gap: 2.5rem; }
  .postdoc-grid { grid-template-columns: 1fr; }
}

@media (max-width: 700px) {
  .nav-links {
    display: none;
    position: absolute;
    top: var(--nav-h);
    left: 0; right: 0;
    background: rgba(11, 25, 65, 0.98);
    backdrop-filter: blur(16px);
    flex-direction: column;
    padding: .8rem 1rem 1.2rem;
    border-bottom: 2px solid var(--uta-gold);
    gap: 0;
    align-items: stretch;
  }
  .nav-links.open { display: flex; }
  .nav-links > li > a { padding: .65rem 1rem; border-radius: 8px; }
  .nav-toggle { display: block; }

  .dropdown-menu {
    position: static;
    box-shadow: none;
    border: none;
    border-top: none;
    border-radius: 0;
    background: rgba(255,255,255,.04);
    padding: 0;
    margin: 0 0 .3rem 1rem;
    border-left: 2px solid var(--uta-gold);
  }
  .dropdown-menu a { padding: .5rem .9rem; }

  .hero { min-height: 78vh; }
  .hero h1 { font-size: 2.1rem; }
  .hero-content { flex-direction: column; gap: 2rem; align-items: flex-start; }
  .hero-image-col { width: 100%; max-width: 300px; align-self: center; }
  .hero-main-col { align-items: flex-start; }

  .about-stats { grid-template-columns: 1fr; }
  .footer-inner { flex-direction: column; gap: 1.5rem; }
  .footer-links { gap: 1rem; }
  .pub-entry { flex-direction: column; gap: .6rem; }
  .projects-grid { grid-template-columns: 1fr; }
  .nav-logo-text { display: none; }
  .logo-sep { display: none; }
}

@media (max-width: 480px) {
  .hero-actions { flex-direction: column; }
  .btn { width: 100%; text-align: center; }
  .about-stats { grid-template-columns: 1fr; gap: .8rem; }
}