:root {
  --navy: #003660;
  --navy-dark: #002244;
  --gold: #FEBC11;
  --gray-light: #f8f9fa;
  --gray-border: #dee2e6;
}

body {
  padding-top: 0;
  color: #333;
}

/* Navbar */
.navbar {
  background-color: var(--navy) !important;
}

.navbar-brand {
  font-weight: 700;
  font-size: 1.25rem;
  color: #fff !important;
}

.navbar-brand span {
  color: var(--gold);
  font-weight: 400;
  font-size: 0.85rem;
  display: block;
  line-height: 1;
  margin-top: 2px;
}

.navbar-nav .nav-link {
  color: rgba(255, 255, 255, 0.85) !important;
  font-weight: 500;
  padding: 0.5rem 1rem !important;
  transition: color 0.15s;
}

.navbar-nav .nav-link:hover,
.navbar-nav .nav-link.active {
  color: var(--gold) !important;
}

.navbar-toggler {
  border-color: rgba(255, 255, 255, 0.3);
}

.navbar-toggler-icon {
  background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba%28255, 255, 255, 0.75%29' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
}

/* Hero */
.hero {
  background: linear-gradient(135deg, var(--navy) 0%, var(--navy-dark) 100%);
  color: #fff;
  padding: 3rem 0;
  margin-bottom: 2rem;
}

.hero h1 {
  font-size: 2.5rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.hero .lead {
  font-size: 1.15rem;
  opacity: 0.9;
  max-width: 700px;
}

.hero .subtitle {
  color: var(--gold);
  font-size: 1rem;
  font-weight: 500;
  margin-bottom: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* Page header */
.page-title {
  border-bottom: 3px solid var(--gold);
  padding-bottom: 0.75rem;
  margin-bottom: 2rem;
  color: var(--navy);
}

/* Section headers */
.section-title {
  color: var(--navy);
  font-weight: 600;
  margin-top: 2.5rem;
  margin-bottom: 1.5rem;
  padding-bottom: 0.5rem;
  border-bottom: 2px solid var(--gray-border);
}

/* Cards */
.card {
  border: 1px solid var(--gray-border);
  transition: box-shadow 0.2s;
}

.card:hover {
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

/* People */
.person-card {
  height: 100%;
}

.person-avatar {
  width: 120px;
  height: 150px;
  border-radius: 6px;
  object-fit: cover;
  object-position: top;
  border: 1px solid var(--gray-border);
  flex-shrink: 0;
}

.person-initials {
  width: 120px;
  height: 150px;
  border-radius: 6px;
  background-color: var(--navy);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  font-weight: 600;
  flex-shrink: 0;
}

.person-card .card-title {
  color: var(--navy);
  font-weight: 600;
  margin-bottom: 0.25rem;
}

.person-card .role {
  color: #6c757d;
  font-size: 0.9rem;
  margin-bottom: 0.5rem;
}

.person-card .bio {
  font-size: 0.9rem;
  color: #555;
}

.person-card .contact-links a {
  color: var(--navy);
  text-decoration: none;
  font-size: 0.85rem;
}

.person-card .contact-links a:hover {
  color: var(--gold);
}

.person-card .card-body {
  padding: 1.5rem;
}

/* Events */
.event-card {
  border-left: 4px solid var(--navy);
  margin-bottom: 1.5rem;
}

.event-card .event-date {
  color: var(--navy);
  font-weight: 600;
  font-size: 0.9rem;
}

.event-card .event-title {
  color: var(--navy);
  font-weight: 600;
}

.event-carousel {
  background-color: #1a1a1a;
  border-radius: 8px;
  overflow: hidden;
}

.event-carousel .carousel-item img {
  height: 400px;
  object-fit: contain;
}

.event-hero-img {
  max-height: 300px;
  width: 100%;
  object-fit: cover;
}

.recurring-banner {
  background-color: var(--gray-light);
  border: 1px solid var(--gray-border);
  border-radius: 0.5rem;
  padding: 1rem 1.5rem;
  margin-bottom: 2rem;
}

/* Projects */
.project-card {
  height: 100%;
}

.project-card .badge {
  font-weight: 500;
}

/* Sponsors */
.sponsor-card {
  height: 100%;
  text-align: center;
}

.sponsor-logo {
  max-height: 80px;
  max-width: 200px;
  object-fit: contain;
  margin: 1rem auto;
}

.sponsor-placeholder {
  width: 200px;
  height: 80px;
  background-color: var(--gray-light);
  border: 2px dashed var(--gray-border);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 600;
  color: var(--navy);
  margin: 1rem auto;
}

/* Research */
.research-section {
  margin-bottom: 3rem;
}

.research-section img {
  max-width: 100%;
  height: auto;
  border-radius: 8px;
  margin-bottom: 1rem;
}

/* Carousel */
.carousel-item {
  background-color: #1a1a1a;
}

.carousel-item img {
  width: 100%;
  height: 350px;
  object-fit: contain;
}

.carousel-caption {
  background: rgba(0, 0, 0, 0.5);
  border-radius: 8px;
  padding: 0.75rem 1.25rem;
}

/* Footer */
.site-footer {
  background-color: var(--navy-dark);
  color: rgba(255, 255, 255, 0.8);
  padding: 2.5rem 0 1.5rem;
  margin-top: 3rem;
}

.site-footer h5 {
  color: var(--gold);
  font-size: 0.95rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 1rem;
}

.site-footer a {
  color: rgba(255, 255, 255, 0.7);
  text-decoration: none;
}

.site-footer a:hover {
  color: var(--gold);
}

.site-footer .footer-logo {
  max-width: 80px;
  opacity: 0.8;
}

.site-footer .footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  margin-top: 1.5rem;
  padding-top: 1rem;
  font-size: 0.8rem;
  opacity: 0.6;
}

/* Sponsor strip on home page */
.sponsor-strip {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 2rem;
  padding: 1.5rem 0;
}

.sponsor-strip img {
  max-height: 45px;
  max-width: 150px;
  object-fit: contain;
  opacity: 0.7;
  transition: opacity 0.2s;
  filter: grayscale(30%);
}

.sponsor-strip img:hover {
  opacity: 1;
  filter: none;
}

/* News cards on home */
.news-card {
  height: 100%;
}

.news-card .news-date {
  color: var(--navy);
  font-weight: 600;
  font-size: 0.85rem;
}

/* Utility */
.text-navy {
  color: var(--navy);
}

.bg-light-alt {
  background-color: var(--gray-light);
}

/* Contact page */
.contact-info-block {
  padding: 2rem;
  background-color: var(--gray-light);
  border-radius: 0.5rem;
}

.contact-info-block h5 {
  color: var(--navy);
  margin-bottom: 1rem;
}

.contact-info-block i {
  color: var(--navy);
  width: 20px;
}

@media (max-width: 768px) {
  .hero h1 {
    font-size: 1.75rem;
  }

  .hero .lead {
    font-size: 1rem;
  }

  .person-avatar,
  .person-initials {
    width: 80px;
    height: 100px;
    font-size: 1.5rem;
  }

  .event-photos img {
    width: 90px;
    height: 60px;
  }
}