/* Header Styles */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background: rgba(45, 52, 54, 0.95);
  backdrop-filter: blur(10px);
  z-index: 1000;
  padding: var(--spacing-sm) 0;
  transition: var(--transition-normal);
  border-bottom: 2px solid var(--cat-orange);
}

.header.scrolled {
  background: rgba(45, 52, 54, 0.98);
  box-shadow: var(--shadow-md);
}

.header-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-sm);
}

.header-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  width: 100%;
}

.logo {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--cat-orange);
  text-decoration: none;
  transition: var(--transition-fast);
  text-shadow: 0 0 10px rgba(255, 107, 53, 0.3);
}

.logo:hover {
  color: var(--cat-yellow);
  transform: scale(1.05);
  text-shadow: 0 0 15px rgba(255, 217, 61, 0.5);
}

.logo-link {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
  text-decoration: none;
  color: inherit;
}

.logo-link::before {
  content: "🐾";
  font-size: 1.5rem;
  margin-right: var(--spacing-xs);
  filter: drop-shadow(0 0 5px rgba(255, 107, 53, 0.8));
  text-shadow: 0 0 10px rgba(255, 107, 53, 0.6);
}

/* Navigation */
.nav-menu {
  display: flex;
  align-items: center;
  gap: var(--spacing-lg);
}

.nav-list {
  display: flex;
  gap: var(--spacing-md);
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-link {
  color: var(--text-primary);
  text-decoration: none;
  font-weight: 600;
  padding: var(--spacing-xs) var(--spacing-sm);
  border-radius: var(--border-radius-sm);
  transition: var(--transition-fast);
  position: relative;
  font-size: 1rem;
}

.nav-link:hover {
  color: var(--cat-yellow);
  background: rgba(255, 217, 61, 0.1);
  transform: translateY(-2px);
}

.nav-link::after {
  content: "";
  position: absolute;
  bottom: -2px;
  left: 50%;
  width: 0;
  height: 2px;
  background: var(--cat-yellow);
  transition: var(--transition-fast);
  transform: translateX(-50%);
}

.nav-link:hover::after {
  width: 100%;
}

/* Mobile menu toggle */
.mobile-menu-toggle {
  display: none;
  flex-direction: column;
  justify-content: space-around;
  width: 30px;
  height: 25px;
  background: transparent;
  border: none;
  cursor: pointer;
  padding: 0;
  z-index: 10;
}

.hamburger-line {
  width: 100%;
  height: 3px;
  background: var(--cat-orange);
  border-radius: 2px;
  transition: var(--transition-fast);
}

.mobile-menu-toggle:hover .hamburger-line {
  background: var(--cat-yellow);
}

.mobile-menu-toggle.active .hamburger-line:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.mobile-menu-toggle.active .hamburger-line:nth-child(2) {
  opacity: 0;
}

.mobile-menu-toggle.active .hamburger-line:nth-child(3) {
  transform: rotate(-45deg) translate(7px, -6px);
}

/* Mobile menu */
.mobile-menu {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100vh;
  background: rgba(45, 52, 54, 0.98);
  backdrop-filter: blur(10px);
  z-index: 999;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: var(--transition-normal);
}

.mobile-menu.active {
  opacity: 1;
  visibility: visible;
}

.mobile-menu-content {
  text-align: center;
  padding: var(--spacing-xl);
}

.mobile-menu-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: var(--spacing-lg);
}

.mobile-menu-link {
  color: var(--text-primary);
  text-decoration: none;
  font-size: 1.5rem;
  font-weight: 600;
  padding: var(--spacing-sm);
  border-radius: var(--border-radius-md);
  transition: var(--transition-fast);
  display: block;
}

.mobile-menu-link:hover {
  color: var(--cat-yellow);
  background: rgba(255, 217, 61, 0.1);
  transform: scale(1.05);
}

/* Responsive */
@media (max-width: 767px) {
  .nav-menu {
    display: none;
  }

  .mobile-menu-toggle {
    display: flex;
  }

  .header-content {
    justify-content: space-between;
  }

  .logo {
    font-size: 1.5rem;
  }
}

@media (min-width: 768px) {
  .mobile-menu-toggle {
    display: none;
  }

  .mobile-menu {
    display: none;
  }
}

/* Animations */
.header.fade-in {
  animation: slideInDown 0.5s ease-out;
}

@keyframes slideInDown {
  from {
    opacity: 0;
    transform: translateY(-100%);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}