.site-header {
  border-bottom: 3px solid var(--gold);
  background: 
    /* Star pattern overlay */ radial-gradient(
      circle at 20% 50%,
      rgba(255, 215, 0, 0.1) 3px,
      transparent 3px
    ),
    radial-gradient(
      circle at 80% 50%,
      rgba(255, 215, 0, 0.08) 2px,
      transparent 2px
    ),
    /* Main red gradient */ var(--gradient-red);
  background-size: 100px 50px, 80px 50px, 100% 100%;
  position: sticky;
  top: 0;
  z-index: 10;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3), 0 1px 3px rgba(220, 20, 60, 0.5);
  backdrop-filter: blur(5px);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 15px 24px;
}

.nav .nav-links {
  display: flex;
  gap: 20px;
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav a {
  color: #fff;
  font-weight: 600;
  padding: 8px 16px;
  border-radius: 8px;
  transition: all 0.3s ease;
  text-decoration: none;
}

.nav a:hover {
  background: rgba(255, 255, 255, 0.2);
  transform: translateY(-1px);
  text-decoration: none;
}

.logo {
  font-weight: 800;
  font-size: 1.4rem;
  color: var(--yellow-star);
  text-shadow: var(--text-shadow);
  display: flex;
  align-items: center;
  gap: 8px;
}

.logo:before {
  content: "⭐";
  font-size: 1.2em;
  animation: sparkle 2s ease-in-out infinite alternate;
}

@keyframes sparkle {
  from {
    transform: scale(1) rotate(0deg);
  }
  to {
    transform: scale(1.1) rotate(10deg);
  }
}

.site-footer {
  border-top: 3px solid var(--gold);
  background: var(--gradient-red);
  background-size: 100% 10px, 100% 100%;
  background-position: 0 0, 0 0;
  margin-top: 48px;
  color: #fff;
  position: relative;
}

.site-footer::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: repeating-linear-gradient(
    90deg,
    var(--gold) 0px,
    var(--gold) 10px,
    var(--yellow-star) 10px,
    var(--yellow-star) 20px
  );
}

.footer-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 40px 24px 20px;
  color: rgba(230, 153, 153, 0.9);
  font-size: 0.95rem;
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 40px;
  margin-bottom: 40px;
}

.footer-section h4 {
  color: #fff;
  margin-bottom: 20px;
  font-size: 1.2rem;
  display: flex;
  align-items: center;
  gap: 8px;
  border-bottom: 2px solid var(--gold);
  padding-bottom: 8px;
}

/* Team Section - New Horizontal Layout */
.team-section {
  grid-column: 1 / -1;
}

.team-grid {
  display: grid;
  gap: 2rem;
  margin-top: 1rem;
}

.team-category {
  background: rgba(255, 255, 255, 0.05);
  padding: 1.5rem;
  border-radius: 12px;
  border: 1px solid rgba(255, 215, 0, 0.2);
}

.team-category h5 {
  color: var(--gold);
  margin: 0 0 1rem 0;
  font-size: 1.1rem;
  text-align: center;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid rgba(228, 200, 44, 0.3);
}

.team-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1rem;
  margin-top: 1rem;
}

.member-card {
  background: rgba(255, 255, 255, 0.1);
  padding: 1rem;
  border-radius: 8px;
  text-align: center;
  border-left: 4px solid transparent;
  transition: all 0.3s ease;
}

.member-card:hover {
  transform: translateY(-2px);
  background: rgba(255, 255, 255, 0.15);
}

.member-card strong {
  display: block;
  color: #fff;
  font-size: 0.95rem;
  margin-bottom: 0.5rem;
  line-height: 1.3;
}

.member-card .role {
  display: inline-block;
  padding: 0.25rem 0.75rem;
  border-radius: 12px;
  font-size: 0.8rem;
  font-weight: 600;
  margin: 0.25rem 0;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.member-card .role.developer {
  background: linear-gradient(135deg, #667eea, #764ba2);
  color: white;
  border-left-color: #667eea;
}

.member-card .role.speaker {
  background: linear-gradient(135deg, #f093fb, #f5576c);
  color: white;
  border-left-color: #f093fb;
}

.member-card small {
  display: block;
  color: rgba(255, 255, 255, 0.7);
  font-size: 0.8rem;
  margin-top: 0.25rem;
}

/* Legacy support for old member class */
.team-members .member {
  margin-bottom: 15px;
  padding: 12px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 8px;
  border-left: 4px solid var(--gold);
}

.member strong {
  display: block;
  color: #fff;
  font-size: 1rem;
}

.member span {
  display: block;
  color: var(--gold);
  font-size: 0.9rem;
  margin: 4px 0;
}

.member small {
  color: #fff;
  font-size: 0.8rem;
}

.course-info p,
.references p {
  margin: 8px 0;
  line-height: 1.6;
  color: rgba(255, 255, 255, 0.9);
}

.resources {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.resource-link {
  color: var(--yellow-star);
  text-decoration: none;
  padding: 8px 12px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 6px;
  transition: all 0.3s ease;
  font-size: 0.9rem;
}

.resource-link:hover {
  background: rgba(255, 215, 0, 0.2);
  transform: translateX(5px);
  text-decoration: none;
}

.detailed-sources {
  margin: 30px 0;
  padding-top: 30px;
  border-top: 1px solid rgba(255, 215, 0, 0.3);
}

.detailed-sources h3 {
  color: var(--gold);
  border-bottom: 2px solid var(--gold);
  padding-bottom: 8px;
  display: inline-block;
  margin-bottom: 20px;
}

.sources-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: 20px;
  margin-top: 20px;
}

.source-item {
  background: rgba(255, 255, 255, 0.1);
  padding: 20px;
  border-radius: 12px;
  border-left: 4px solid var(--gold);
  transition: all 0.3s ease;
}

.source-item:hover {
  background: rgba(255, 255, 255, 0.15);
  transform: translateY(-2px);
}

.source-item h4 {
  color: #fff;
  margin-bottom: 15px;
  font-size: 1rem;
  line-height: 1.4;
}

.source-meta p {
  margin: 8px 0;
  font-size: 0.9rem;
}

.source-desc {
  font-style: italic;
  color: rgba(255, 255, 255, 0.8);
  margin-top: 10px;
  line-height: 1.5;
}

.source-link {
  display: inline-block;
  margin-top: 10px;
  padding: 6px 12px;
  background: rgba(255, 215, 0, 0.2);
  color: var(--gold);
  text-decoration: none;
  border-radius: 6px;
  font-size: 0.85rem;
  transition: all 0.3s ease;
}

.source-link:hover {
  background: rgba(255, 215, 0, 0.3);
  text-decoration: none;
}

.footer-bottom {
  margin-top: 40px;
  padding-top: 20px;
  border-top: 1px solid rgba(255, 215, 0, 0.3);
  text-align: center;
}

.footer-badges {
  margin-top: 15px;
  display: flex;
  justify-content: center;
  gap: 15px;
  flex-wrap: wrap;
}

.badge {
  background: rgba(255, 215, 0, 0.2);
  color: var(--gold);
  padding: 6px 12px;
  border-radius: 20px;
  font-size: 0.85rem;
  font-weight: 600;
  border: 1px solid rgba(255, 215, 0, 0.3);
}

.project-info {
  margin: 40px 0;
  padding: 30px;
  background: rgba(255, 215, 0, 0.1);
  border-radius: 15px;
  border: 2px solid rgba(255, 215, 0, 0.3);
}

.project-info h4 {
  color: var(--gold);
  text-align: center;
  margin-bottom: 30px;
  font-size: 1.3rem;
  border-bottom: 2px solid var(--gold);
  padding-bottom: 10px;
  display: inline-block;
  width: 100%;
}

.project-details {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 25px;
}

.project-feature {
  background: rgba(255, 255, 255, 0.1);
  padding: 20px;
  border-radius: 12px;
  border-left: 4px solid var(--gold);
}

.project-feature h5 {
  color: #fff;
  margin-bottom: 12px;
  font-size: 1rem;
  display: flex;
  align-items: center;
  gap: 8px;
}

.project-feature p {
  color: rgba(255, 255, 255, 0.9);
  line-height: 1.6;
  font-size: 0.9rem;
  margin: 0;
}

.disclaimer {
  font-style: italic;
  color: rgba(255, 255, 255, 0.7);
  margin-top: 10px;
  font-size: 0.85rem;
}

@media (max-width: 900px) {
  .footer-content {
    grid-template-columns: 1fr;
    gap: 30px;
  }

  .footer-badges {
    flex-direction: column;
    align-items: center;
  }

  .hero {
    grid-template-columns: 1fr;
  }

  .nav {
    flex-direction: column;
    gap: 12px;
  }

  .nav .nav-links {
    flex-wrap: wrap;
    justify-content: center;
  }

  .project-details {
    grid-template-columns: 1fr;
  }

  .project-info {
    padding: 20px;
  }

  /* Team responsive */
  .team-row {
    grid-template-columns: 1fr;
  }

  .team-category {
    padding: 1rem;
  }

  .member-card {
    padding: 0.75rem;
  }
}