/* ===== Header & Navigation ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.98);
  backdrop-filter: blur(20px) saturate(180%);
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.08);
  transition: all var(--transition-speed) ease;
}

.site-header.scrolled {
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.12);
}

.site-header.scrolled .navbar {
  padding-top: 0.5rem;
  padding-bottom: 0.5rem;
}

.navbar {
  padding: 1rem 0;
  transition: padding var(--transition-speed) ease;
}

/* ===== Brand / Logo ===== */
.navbar-brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--primary-green);
  text-decoration: none;
  transition: transform 0.3s ease;
  padding: 0.5rem 0;
}

.navbar-brand:hover,
.navbar-brand:focus {
  transform: translateY(-2px);
  outline: none;
}

.brand-icon {
  color: var(--primary-green);
  transition: transform 0.4s ease;
}

.navbar-brand:hover .brand-icon,
.navbar-brand:focus .brand-icon {
  transform: rotate(-10deg) scale(1.1);
}

.brand-text {
  font-size: 1.5rem;
  letter-spacing: -0.5px;
}

.brand-tagline {
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--text-muted);
  margin-left: -0.5rem;
  padding-left: 0.75rem;
  border-left: 2px solid var(--primary-green-light);
}

/* ===== Navigation Links ===== */
.navbar-nav {
  gap: 0.25rem;
  display: flex;
  align-items: center;
}

.nav-link {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.625rem 1rem;
  border-radius: var(--border-radius);
  color: var(--text-dark);
  font-weight: 500;
  font-size: 0.95rem;
  transition: all var(--transition-speed) ease;
  position: relative;
  overflow: hidden;
  cursor: pointer;
}

.nav-link::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--primary-green-light);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.3s ease;
  z-index: -1;
  border-radius: var(--border-radius);
}

.nav-link:hover::before,
.nav-link.active::before,
.nav-link:focus::before {
  color: var(--text-light) !important;
  transform: scaleX(1);
}

.nav-link:hover,
.nav-link:focus {
  color: var(--text-light) !important;
  outline: none;
}

.nav-link.active {
  color: var(--text-light) !important;
  font-weight: 600;
  background: var(--primary-green-light);
}

.nav-icon {
  flex-shrink: 0;
  opacity: 0.8;
  transition: all 0.3s ease;
}

.nav-link:hover .nav-icon,
.nav-link:focus .nav-icon {
  opacity: 1;
  transform: translateY(-2px);
}

/* ===== Dropdown Menus ===== */
.dropdown-menu-modern {
  border: none;
  border-radius: var(--border-radius);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.15);
  padding: 0.75rem;
  margin-top: 0.75rem;
  min-width: 220px;
  animation: dropdownSlide var(--transition-speed) ease;
  background: white;
  color: var(--text-dark);
}

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

.dropdown-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.75rem 1rem;
  border-radius: 8px;
  font-weight: 500;
  transition: all var(--transition-speed) ease;
  color: var(--text-dark);
  cursor: pointer;
}

.dropdown-item:hover,
.dropdown-item:focus {
  background: var(--primary-green-light);
  color: var(--primary-green);
  transform: translateX(4px);
  outline: none;
}

.dropdown-item:active {
  background: var(--primary-green-light);
}

.dropdown-icon {
  flex-shrink: 0;
  opacity: 0.7;
  transition: opacity 0.3s ease;
}

.dropdown-item:hover .dropdown-icon,
.dropdown-item:focus .dropdown-icon {
  opacity: 1;
}

.dropdown-header {
  padding: 0.75rem 1rem;
  margin-bottom: 0.5rem;
  font-weight: 600;
  color: var(--text-muted);
}

.user-info strong {
  font-size: 0.95rem;
  color: var(--text-dark);
}

.dropdown-divider {
  margin: 0.5rem 0;
  opacity: 0.15;
  border-top: 1px solid currentColor;
}

.dropdown-item-logout {
  color: #dc3545;
}

.dropdown-item-logout:hover,
.dropdown-item-logout:focus {
  background: rgba(220, 53, 69, 0.1);
  color: #dc3545;
  outline: none;
}

/* ===== Search Bar ===== */
.search-form {
  flex: 0 1 auto;
  margin: 0.75rem 0;
}

.search-wrapper {
  position: relative;
  min-width: 240px;
}

.search-icon {
  position: absolute;
  left: 1rem;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-muted);
  pointer-events: none;
  z-index: 1;
}

.search-input {
  padding: 0.625rem 1rem 0.625rem 2.75rem;
  border: 2px solid transparent;
  border-radius: 50px;
  background: #f8f9fa;
  transition: all var(--transition-speed) ease;
  font-size: 0.9rem;
}

.search-input:focus {
  background: white;
  border-color: var(--primary-green);
  box-shadow: 0 0 0 4px rgba(45, 80, 22, 0.1);
  outline: none;
}

.search-input::placeholder {
  color: var(--text-muted);
}

/* ===== User Actions ===== */
.user-actions {
  display: flex;
  gap: 0.5rem;
  align-items: center;
}

.btn-signup {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.625rem 1.5rem;
  border-radius: 50px;
  font-weight: 600;
  font-size: 0.9rem;
  background: linear-gradient(135deg, var(--primary-green), #3d6b1f);
  border: none;
  color: white;
  transition: all var(--transition-speed) ease;
  box-shadow: 0 2px 8px rgba(45, 80, 22, 0.3);
  cursor: pointer;
}

.btn-signup:hover,
.btn-signup:focus {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(45, 80, 22, 0.4);
  background: linear-gradient(135deg, #3d6b1f, var(--primary-green));
  outline: none;
}

.btn-icon {
  flex-shrink: 0;
}

/* ===== User Avatar & Menu ===== */
.user-menu-toggle {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.375rem 0.75rem 0.375rem 0.375rem;
  background: var(--primary-green-light);
  border-radius: 50px;
  cursor: pointer;
  transition: background-color var(--transition-speed) ease;
}

.user-menu-toggle:hover,
.user-menu-toggle:focus {
  background: rgba(45, 80, 22, 0.15);
  outline: none;
}

.user-avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--primary-green), #4ecdc4);
  color: white;
  overflow: hidden;
  flex-shrink: 0;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.user-avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.user-name {
  font-weight: 600;
  color: var(--text-dark);
  max-width: 120px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* ===== User Menu Dropdown ===== */
.user-menu {
  min-width: 260px;
}

/* ===== Mobile Toggler ===== */
.navbar-toggler {
  padding: 0.5rem;
  border: 2px solid var(--primary-green-light);
  border-radius: 8px;
  transition: all var(--transition-speed) ease;
  background: transparent;
  cursor: pointer;
}

.navbar-toggler:hover,
.navbar-toggler:focus {
  background: var(--primary-green-light);
  border-color: var(--primary-green);
  outline: none;
}

/* ===== Scroll Progress Bar ===== */
.scroll-progress {
  position: absolute;
  bottom: 0;
  left: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--primary-green), #4ecdc4, #ff6b35);
  width: 0%;
  transition: width 0.1s ease;
}

/* ===== Mobile Responsive ===== */
@media (max-width: 991px) {
  .navbar {
    padding: 0.75rem 0;
  }

  .navbar-collapse {
    margin-top: 1rem;
    padding: 1rem;
    background: white;
    border-radius: var(--border-radius);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.1);
  }

  .navbar-nav {
    gap: 0.5rem;
    flex-direction: column;
  }

  .nav-link {
    padding: 0.75rem 1rem;
  }

  .search-form {
    margin: 1rem 0;
    width: 100%;
  }

  .search-wrapper {
    width: 100%;
    min-width: unset;
  }

  .dropdown-menu-modern {
    box-shadow: none;
    border: 1px solid rgba(0, 0, 0, 0.05);
  }

  .user-actions {
    margin-top: 0.5rem;
    padding-top: 1rem;
    border-top: 1px solid rgba(0, 0, 0, 0.05);
    flex-direction: column;
    gap: 0.75rem;
  }

  .btn-signup {
    width: 100%;
    justify-content: center;
  }

  .brand-tagline {
    display: none;
  }
}

@media (max-width: 575px) {
  .brand-text {
    font-size: 1.25rem;
  }

  .nav-text {
    font-size: 0.95rem;
  }
}