:root {
  --ifsp-green: #2fa866;
  --ifsp-green-dark: #1b683e;
  --ifsp-green-gradient: linear-gradient(135deg, #2fa866 0%, #1e874d 100%);
  --nav-text: rgba(255, 255, 255, 0.85);
  --nav-text-hover: rgba(255, 255, 255, 1);
}

body {
  font-family: 'Inter', sans-serif;
}

.navbar-custom {
  background: var(--ifsp-green-gradient) !important;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
  padding: 0.8rem 0;
  transition: all 0.3s ease;
}

.navbar-brand img {
  filter: drop-shadow(0 2px 4px rgba(0,0,0,0.2));
  transition: transform 0.3s ease;
}

.navbar-brand:hover img {
  transform: scale(1.05);
}

.nav-link-custom {
  color: var(--nav-text) !important;
  font-weight: 500;
  padding: 0.5rem 1rem !important;
  margin: 0 0.25rem;
  border-radius: 50px;
  transition: all 0.3s ease;
  position: relative;
}

.nav-link-custom:hover,
.nav-link-custom.active {
  color: var(--nav-text-hover) !important;
  background: rgba(255, 255, 255, 0.15);
  transform: translateY(-1px);
}

.profile-badge {
  background: rgba(255, 255, 255, 0.2);
  border: 1px solid rgba(255, 255, 255, 0.3);
  backdrop-filter: blur(10px);
  padding: 0.4rem 1.2rem !important;
  border-radius: 50px;
  font-weight: 600;
  transition: all 0.3s ease;
}

.profile-badge:hover {
  background: rgba(255, 255, 255, 0.3);
  box-shadow: 0 4px 10px rgba(0,0,0,0.1);
}

.dropdown-menu-custom {
  border: none;
  border-radius: 12px;
  box-shadow: 0 10px 30px rgba(0,0,0,0.15);
  padding: 0.5rem;
  animation: slideIn 0.2s ease-out;
}

.dropdown-menu-custom .dropdown-item {
  border-radius: 8px;
  font-weight: 500;
  transition: background 0.2s;
}

.dropdown-menu-custom .dropdown-item:hover {
  background-color: rgba(47, 168, 102, 0.1);
  color: var(--ifsp-green-dark);
}

.theme-toggle-btn {
  background: rgba(255, 255, 255, 0.15);
  border-radius: 50px;
  padding: 0.4rem 0.8rem;
  transition: all 0.3s ease;
}
.theme-toggle-btn:hover {
  background: rgba(255, 255, 255, 0.25);
  transform: rotate(15deg);
}

@keyframes slideIn {
  from { opacity: 0; transform: translateY(-10px); }
  to { opacity: 1; transform: translateY(0); }
}