/* Modern Styling for NMSU Header, AIM Lab Navigation & Smooth Page Sections */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&family=Outfit:wght@600;700;800&family=Fira+Code:wght@400;600&display=swap');

:root {
  --nmsu-crimson: #880029;
  --nmsu-crimson-dark: #5e001c;
  --nmsu-crimson-light: rgba(136, 0, 41, 0.08);
  --space-dark: #0f172a;
  --text-main: #1e293b;
  --text-muted: #64748b;
  --bg-light: #f8fafc;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  background-color: var(--bg-light);
  color: var(--text-main);
  line-height: 1.6;
}

/* 1. Top Institution Header (NMSU Crimson Bar) */
.top-institution-bar {
  background-color: var(--nmsu-crimson);
  color: #ffffff;
  padding: 10px 0;
  width: 100%;
}

.institution-container {
  max-width: 1340px;
  margin: 0 auto;
  padding: 0 40px;
  display: flex;
  align-items: center;
}

.institution-brand {
  display: flex;
  align-items: center;
  gap: 18px;
}

.logo-link {
  display: inline-block;
  text-decoration: none;
}

.nmsu-logo {
  height: 48px;
  width: auto;
  display: block;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.25);
  border-radius: 2px;
  transition: transform 0.2s ease, opacity 0.2s ease;
}

.nmsu-logo:hover {
  opacity: 0.92;
  transform: scale(1.03);
}

.institution-text {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}

.institution-name {
  font-family: 'Outfit', sans-serif;
  font-weight: 700;
  font-size: 1.08rem;
  letter-spacing: 0.5px;
  text-transform: uppercase;
  color: #ffffff;
  text-decoration: none;
  line-height: 1.2;
  transition: opacity 0.2s ease;
}

.institution-name:hover {
  opacity: 0.88;
  text-decoration: underline;
}

.department-name {
  font-family: 'Inter', sans-serif;
  font-weight: 400;
  font-size: 0.85rem;
  color: rgba(255, 255, 255, 0.9);
  text-decoration: none;
  line-height: 1.3;
  margin-top: 2px;
  transition: opacity 0.2s ease;
}

.department-name:hover {
  opacity: 0.88;
  text-decoration: underline;
}

/* 2. AIM Lab Header & Navigation Tabs */
.main-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background-color: #ffffff;
  border-bottom: 1px solid #e2e8f0;
  padding: 22px 0;
  width: 100%;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.04);
}

.lab-container {
  max-width: 1340px;
  margin: 0 auto;
  padding: 0 40px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.lab-brand-link {
  display: flex;
  align-items: center;
  gap: 16px;
  text-decoration: none;
  color: inherit;
  flex-shrink: 0;
}

.lab-brand-link:hover .lab-logo {
  transform: scale(1.04);
}

.lab-brand-link:hover .lab-title {
  color: var(--nmsu-crimson);
}

.lab-logo {
  height: 62px;
  width: auto;
  display: block;
  object-fit: contain;
  transition: transform 0.25s ease;
}

.lab-title-group {
  display: flex;
  flex-direction: column;
}

.lab-title {
  font-family: 'Outfit', sans-serif;
  font-weight: 800;
  font-size: 2.4rem;
  color: var(--space-dark);
  letter-spacing: -0.5px;
  line-height: 1.05;
  margin: 0;
  transition: color 0.2s ease;
}

.lab-subtitle {
  font-family: 'Outfit', 'Inter', sans-serif;
  font-weight: 700;
  font-size: 1.05rem;
  color: var(--nmsu-crimson);
  letter-spacing: -0.2px;
  margin-top: 3px;
  margin-bottom: 0;
}

/* Navigation Tabs (Far-Right Alignment, Wide Spacing, Crimson Font Color) */
.nav-tabs {
  display: flex;
  align-items: center;
  gap: 34px;
  margin-left: auto;
  justify-content: flex-end;
}

.nav-tab {
  text-decoration: none;
  font-family: 'Outfit', 'Inter', sans-serif;
  font-weight: 700;
  font-size: 1.05rem;
  color: var(--nmsu-crimson);
  padding: 8px 16px;
  border-radius: 8px;
  transition: all 0.25s ease;
}

.nav-tab:hover {
  color: #ffffff;
  background-color: var(--nmsu-crimson);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(136, 0, 41, 0.3);
}

.nav-tab.active {
  color: #ffffff;
  background-color: var(--nmsu-crimson);
  font-weight: 700;
  box-shadow: 0 4px 14px rgba(136, 0, 41, 0.35);
}

/* 3. MAIN CONTENT SECTIONS */
.main-content {
  padding: 20px 0 80px;
}

.section {
  padding: 50px 0;
}

.section-container {
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 40px;
}

.section-title {
  font-family: 'Outfit', sans-serif;
  font-size: 2.4rem;
  font-weight: 800;
  color: var(--space-dark);
}

.pub-header-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
}

.scholar-btn {
  background-color: var(--nmsu-crimson);
  color: #ffffff;
  padding: 10px 20px;
  border-radius: 8px;
  font-family: 'Outfit', 'Inter', sans-serif;
  font-weight: 700;
  font-size: 0.98rem;
  text-decoration: none;
  transition: all 0.25s ease;
  box-shadow: 0 4px 12px rgba(136, 0, 41, 0.2);
}

.scholar-btn:hover {
  background-color: var(--nmsu-crimson-dark);
  transform: translateY(-2px);
  box-shadow: 0 6px 16px rgba(136, 0, 41, 0.35);
}

.section-desc {
  font-size: 1.1rem;
  color: var(--text-main);
  line-height: 1.7;
}

.section-divider {
  width: 100%;
  height: 3px;
  background: linear-gradient(90deg, var(--nmsu-crimson) 0%, rgba(136, 0, 41, 0.2) 100%);
  margin: 14px 0 28px;
  border-radius: 2px;
}

/* Home Hero Card */
.hero-box {
  background-color: #ffffff;
  padding: 40px;
  border-radius: 16px;
  border: 1px solid #e2e8f0;
  box-shadow: 0 4px 20px rgba(0,0,0,0.04);
}

.hero-heading {
  font-family: 'Outfit', sans-serif;
  font-size: 2rem;
  font-weight: 800;
  color: var(--space-dark);
  margin-bottom: 14px;
}

.hero-text {
  font-size: 1.1rem;
  color: var(--text-main);
  margin-bottom: 24px;
  line-height: 1.7;
}

.pi-brief {
  background-color: var(--nmsu-crimson-light);
  border-left: 4px solid var(--nmsu-crimson);
  padding: 20px;
  border-radius: 6px;
}

.pi-brief h3 {
  font-family: 'Outfit', sans-serif;
  color: var(--nmsu-crimson);
  margin-bottom: 6px;
}

.pi-brief a {
  color: var(--nmsu-crimson);
  font-weight: 600;
}

/* Info Lists & Cards */
.info-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 14px;
  font-size: 1.05rem;
}

.info-list li {
  background-color: #ffffff;
  padding: 16px 20px;
  border-radius: 8px;
  border: 1px solid #e2e8f0;
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 24px;
}

.info-card {
  background-color: #ffffff;
  padding: 30px;
  border-radius: 12px;
  border: 1px solid #e2e8f0;
  box-shadow: 0 2px 10px rgba(0,0,0,0.03);
}

.info-card h3 {
  font-family: 'Outfit', sans-serif;
  color: var(--nmsu-crimson);
  font-size: 1.3rem;
  margin-bottom: 10px;
}

/* 4. CATEGORIES STRUCTURE */
.tree-container {
  background-color: #ffffff;
  border: 1.5px solid #e2e8f0;
  border-radius: 12px;
  padding: 24px 28px;
  margin-bottom: 35px;
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.03);
}

.tree-header {
  font-family: 'Outfit', sans-serif;
  font-weight: 800;
  font-size: 1.15rem;
  color: var(--space-dark);
  margin-bottom: 14px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.tree-branches {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.tree-btn {
  background: none;
  border: none;
  text-decoration: none;
  text-align: left;
  font-family: 'Outfit', 'Inter', sans-serif;
  font-weight: 600;
  font-size: 1.08rem;
  color: var(--text-main);
  padding: 10px 18px;
  border-radius: 8px;
  cursor: pointer;
  transition: all 0.25s ease;
  display: flex;
  align-items: center;
  gap: 12px;
}

.tree-icon {
  font-family: 'Fira Code', monospace;
  color: var(--nmsu-crimson);
  font-weight: 700;
  font-size: 1.1rem;
}

.tree-btn:hover {
  background-color: var(--nmsu-crimson-light);
  color: var(--nmsu-crimson);
  transform: translateX(4px);
}

.tree-btn.active {
  background-color: var(--nmsu-crimson);
  color: #ffffff;
  font-weight: 700;
  box-shadow: 0 4px 14px rgba(136, 0, 41, 0.25);
}

.tree-btn.active .tree-icon {
  color: #ffffff;
}

.category-subtitle {
  font-family: 'Outfit', sans-serif;
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--nmsu-crimson);
  margin-bottom: 20px;
  border-bottom: 2px solid #e2e8f0;
  padding-bottom: 8px;
}

.pub-category, .people-category, .research-category {
  display: none;
}

.pub-category.active, .people-category.active, .research-category.active {
  display: block;
}

/* 5. EXPANDABLE PROJECT FIGURES GALLERY */
.expand-btn {
  background-color: var(--nmsu-crimson-light);
  color: var(--nmsu-crimson);
  border: 1px solid rgba(136, 0, 41, 0.25);
  font-family: 'Outfit', sans-serif;
  font-weight: 700;
  font-size: 0.92rem;
  padding: 8px 16px;
  border-radius: 8px;
  cursor: pointer;
  transition: all 0.25s ease;
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.expand-btn:hover {
  background-color: var(--nmsu-crimson);
  color: #ffffff;
}

.expand-arrow {
  transition: transform 0.3s ease;
}

.expandable-card.active .expand-arrow {
  transform: rotate(180deg);
}

.expandable-gallery {
  display: none;
  margin-top: 20px;
  padding-top: 20px;
  border-top: 1px dashed #cbd5e1;
  animation: fadeIn 0.35s ease-in-out;
}

.expandable-gallery.active {
  display: block;
}

.gallery-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 20px;
}

.gallery-item {
  background-color: #f8fafc;
  border: 1px solid #e2e8f0;
  border-radius: 10px;
  padding: 12px;
  text-align: center;
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.gallery-item:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.08);
}

.gallery-img {
  width: 100%;
  height: 200px;
  object-fit: contain;
  border-radius: 6px;
  background-color: #ffffff;
  padding: 6px;
  cursor: zoom-in;
  transition: transform 0.2s ease;
}

.gallery-img:hover {
  transform: scale(1.03);
}

.img-caption {
  font-size: 0.85rem;
  color: var(--text-muted);
  font-weight: 600;
  margin-top: 8px;
}

/* 6. LIGHTBOX MODAL OVERLAY STYLING (FIXED CENTER SCREEN OVERLAY) */
.image-modal-overlay {
  position: fixed !important;
  top: 0 !important;
  left: 0 !important;
  right: 0 !important;
  bottom: 0 !important;
  width: 100vw !important;
  height: 100vh !important;
  background-color: rgba(15, 23, 42, 0.94) !important;
  backdrop-filter: blur(10px) !important;
  z-index: 999999 !important;
  box-sizing: border-box !important;
  padding: 20px !important;
}

.modal-content {
  margin: auto !important;
  display: block !important;
  max-width: 95vw !important;
  max-height: 88vh !important;
  min-width: 65vw !important;
  object-fit: contain !important;
  border-radius: 12px !important;
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.7) !important;
  background-color: #ffffff !important;
  padding: 12px !important;
  cursor: default !important;
}

.modal-caption {
  margin: 14px auto 0 !important;
  display: block !important;
  width: 90% !important;
  text-align: center !important;
  color: #ffffff !important;
  font-family: 'Outfit', sans-serif !important;
  font-size: 1.25rem !important;
  font-weight: 700 !important;
}

.modal-close {
  position: absolute !important;
  top: 20px !important;
  right: 30px !important;
  color: #ffffff !important;
  font-size: 48px !important;
  font-weight: bold !important;
  cursor: pointer !important;
  z-index: 1000000 !important;
  line-height: 1 !important;
}

.modal-close:hover {
  color: var(--nmsu-crimson) !important;
  transform: scale(1.2) !important;
}

/* People Section Long Scrolling Offset */
.people-section {
  scroll-margin-top: 150px;
  margin-bottom: 60px;
}

.pub-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.pub-item {
  background-color: #ffffff;
  padding: 22px 28px;
  border-radius: 12px;
  border: 1px solid #e2e8f0;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.03);
  display: flex;
  gap: 18px;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.pub-item:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 22px rgba(0, 0, 0, 0.07);
  border-color: rgba(136, 0, 41, 0.35);
}

.pub-tag {
  font-family: 'Outfit', sans-serif;
  font-weight: 800;
  color: var(--nmsu-crimson);
  font-size: 1.05rem;
  min-width: 50px;
}

.pub-content {
  font-size: 1rem;
  line-height: 1.6;
}

.pub-authors {
  color: var(--text-main);
}

.pub-paper-title {
  font-weight: 700;
  color: var(--space-dark);
  margin: 0 4px;
}

.pub-venue {
  color: var(--text-muted);
}

.pub-link {
  color: var(--nmsu-crimson);
  font-weight: 700;
  text-decoration: none;
  margin-left: 8px;
}

.pub-link:hover {
  text-decoration: underline;
}

/* 7. PRINCIPAL INVESTIGATOR PROFILE STYLING */
.pi-profile-card {
  background-color: #ffffff;
  border: 1px solid #e2e8f0;
  border-radius: 16px;
  padding: 40px;
  display: flex;
  gap: 40px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.04);
  align-items: flex-start;
}

.pi-photo-container {
  flex-shrink: 0;
}

.pi-photo {
  width: 240px;
  height: 300px;
  object-fit: cover;
  border-radius: 14px;
  box-shadow: 0 6px 18px rgba(0, 0, 0, 0.12);
  border: 3px solid #ffffff;
  outline: 1px solid #e2e8f0;
}

.pi-details {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.pi-name {
  font-family: 'Outfit', sans-serif;
  font-size: 2.2rem;
  font-weight: 800;
  color: var(--space-dark);
  line-height: 1.2;
}

.pi-title {
  font-family: 'Outfit', sans-serif;
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--nmsu-crimson);
}

.pi-affiliation {
  font-size: 1rem;
  color: var(--text-main);
  line-height: 1.5;
}

.pi-contact-group {
  background-color: var(--nmsu-crimson-light);
  border-left: 4px solid var(--nmsu-crimson);
  padding: 14px 18px;
  border-radius: 6px;
  margin: 8px 0;
}

.pi-contact-group a {
  color: var(--nmsu-crimson);
  font-weight: 600;
  text-decoration: none;
}

.pi-contact-group a:hover {
  text-decoration: underline;
}

.pi-subtitle {
  font-family: 'Outfit', sans-serif;
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--space-dark);
  margin-bottom: 8px;
  margin-top: 8px;
}

.pi-edu-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-bottom: 12px;
}

.pi-bio {
  font-size: 1.02rem;
  color: var(--text-main);
  line-height: 1.7;
}

/* 8. PROFILE LINK BUTTONS STYLING */
.profile-link-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  border-radius: 8px;
  font-family: 'Outfit', 'Inter', sans-serif;
  font-weight: 700;
  font-size: 0.92rem;
  text-decoration: none;
  transition: all 0.25s ease;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
}

.cv-btn {
  background-color: var(--nmsu-crimson);
  color: #ffffff;
  border: 1px solid var(--nmsu-crimson);
}

.cv-btn:hover {
  background-color: var(--nmsu-crimson-dark);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(136, 0, 41, 0.3);
}

.linkedin-btn {
  background-color: #0077b5;
  color: #ffffff;
  border: 1px solid #0077b5;
}

.linkedin-btn:hover {
  background-color: #005582;
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0, 119, 181, 0.3);
}

.rg-btn {
  background-color: #00ccbb;
  color: #ffffff;
  border: 1px solid #00ccbb;
}

.rg-btn:hover {
  background-color: #00998c;
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0, 204, 187, 0.3);
}

.scholar-profile-btn {
  background-color: #4285f4;
  color: #ffffff;
  border: 1px solid #4285f4;
}

.scholar-profile-btn:hover {
  background-color: #2b6cb0;
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(66, 133, 244, 0.3);
}

/* Responsive tweaking */
@media (max-width: 960px) {
  .lab-container {
    flex-direction: column;
    align-items: flex-start;
    gap: 20px;
  }
  .nav-tabs {
    margin-left: 0;
    width: 100%;
    justify-content: flex-start;
    gap: 14px;
    flex-wrap: wrap;
  }
}

@media (max-width: 768px) {
  .lab-brand-link {
    gap: 12px;
  }
  .lab-logo {
    height: 50px;
  }
  .lab-title {
    font-size: 2rem;
  }
  .lab-subtitle {
    font-size: 0.92rem;
  }
  .pi-profile-card {
    flex-direction: column;
    align-items: center;
  }
  .pi-photo {
    width: 200px;
    height: 250px;
  }
  .footer-container {
    flex-direction: column;
    gap: 32px;
    padding: 0 24px;
  }
  .footer-columns {
    gap: 32px;
    width: 100%;
  }
  .footer-bottom {
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
    padding: 20px 24px 0;
  }
}

/* 9. NEWS VIDEO & RESPONSIVE EMBEDS STYLING */
.news-video-card {
  margin-top: 14px;
  max-width: 680px;
  background-color: #f8fafc;
  border: 1px solid #e2e8f0;
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
}

.news-video {
  width: 100%;
  max-height: 400px;
  object-fit: contain;
  display: block;
  background-color: #0f172a;
}

.news-video:fullscreen,
.news-video:-webkit-full-screen {
  object-fit: contain !important;
  max-height: 100vh !important;
  width: 100vw !important;
  background-color: #000000 !important;
}

.news-video-iframe-wrapper {
  position: relative;
  padding-bottom: 56.25%; /* 16:9 Aspect Ratio */
  height: 0;
  overflow: hidden;
  border-bottom: 1px solid #e2e8f0;
}

.news-video-iframe-wrapper iframe {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  border: 0;
}

/* 10. COMMON SITE FOOTER STYLING */
.main-footer {
  background-color: #ffffff;
  border-top: 3px solid var(--nmsu-crimson);
  padding: 48px 0 28px;
  margin-top: 60px;
  color: var(--text-main);
  box-shadow: 0 -4px 16px rgba(0, 0, 0, 0.03);
}

.footer-container {
  max-width: 1340px;
  margin: 0 auto;
  padding: 0 40px;
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 40px;
  flex-wrap: wrap;
}

.footer-brand {
  display: flex;
  flex-direction: column;
  gap: 14px;
  max-width: 440px;
}

.footer-logo-row {
  display: flex;
  align-items: center;
  gap: 14px;
  text-decoration: none;
}

.footer-logo {
  height: 52px;
  width: auto;
  object-fit: contain;
  transition: transform 0.25s ease;
}

.footer-logo-row:hover .footer-logo {
  transform: scale(1.04);
}

.footer-brand-title {
  font-family: 'Outfit', sans-serif;
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--space-dark);
  line-height: 1.1;
}

.footer-brand-sub {
  font-family: 'Inter', sans-serif;
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--nmsu-crimson);
}

.footer-desc {
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.6;
}

.footer-columns {
  display: flex;
  gap: 50px;
  flex-wrap: wrap;
}

.footer-col {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-col-title {
  font-family: 'Outfit', sans-serif;
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--space-dark);
  margin-bottom: 4px;
}

.footer-links {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.footer-links a {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.92rem;
  transition: color 0.2s ease;
}

.footer-links a:hover {
  color: var(--nmsu-crimson);
  text-decoration: underline;
}

.footer-contact-item {
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.6;
}

.footer-bottom {
  max-width: 1340px;
  margin: 35px auto 0;
  padding: 22px 40px 0;
  border-top: 1px solid #e2e8f0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.86rem;
  color: var(--text-muted);
  flex-wrap: wrap;
  gap: 12px;
}