/* ===== NAVBAR COMPONENT ===== */

.navbar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  background: var(--bg-glass);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border-primary);
  z-index: var(--z-fixed);
  transition: all var(--transition-normal);
  will-change: background-color, border-color;
}

.navbar.scrolled {
  background: rgba(10, 10, 10, 0.98);
  border-bottom-color: var(--border-secondary);
  box-shadow: var(--shadow-lg);
}

.nav-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 70px;
  position: relative;
}

/* Logo */
.nav-logo h2 {
  font-size: var(--fs-xl);
  font-weight: 800;
  letter-spacing: -0.02em;
  margin: 0;
}

.nav-logo .gradient-text {
  background: var(--primary-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* Navigation Menu */
.nav-menu {
  display: none;
  gap: clamp(1.5rem, 3vw, 2.5rem);
  align-items: center;
}

@container (min-width: 768px) {
  .nav-menu {
    display: flex;
  }
}

.nav-link {
  color: var(--text-primary);
  text-decoration: none;
  font-weight: 500;
  font-size: var(--fs-base);
  position: relative;
  padding: 0.5rem 0;
  transition: all var(--transition-normal);
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 50%;
  width: 0;
  height: 2px;
  background: var(--primary-gradient);
  transition: all var(--transition-normal);
  transform: translateX(-50%);
}

.nav-link:hover,
.nav-link.active {
  color: var(--primary-color);
}

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

/* Hamburger Menu */
.hamburger {
  display: flex;
  flex-direction: column;
  cursor: pointer;
  padding: 0.5rem;
  gap: 4px;
  transition: all var(--transition-normal);
}

@container (min-width: 768px) {
  .hamburger {
    display: none;
  }
}

.hamburger span {
  width: 25px;
  height: 2px;
  background: var(--text-primary);
  transition: all var(--transition-normal);
  transform-origin: center;
}

.hamburger.active span:nth-child(1) {
  transform: rotate(45deg) translate(6px, 6px);
}

.hamburger.active span:nth-child(2) {
  opacity: 0;
  transform: scale(0);
}

.hamburger.active span:nth-child(3) {
  transform: rotate(-45deg) translate(6px, -6px);
}

/* Mobile Menu */
@media (max-width: 767px) {
  .nav-menu {
    position: absolute;
    top: 100%;
    left: 0;
    width: 100%;
    background: var(--bg-secondary);
    backdrop-filter: blur(20px);
    border-top: 1px solid var(--border-primary);
    padding: var(--space-lg) var(--space-md);
    flex-direction: column;
    gap: var(--space-md);
    transform: translateY(-100%);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-normal);
  }

  .nav-menu.active {
    display: flex;
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
  }

  .nav-link {
    font-size: var(--fs-lg);
    padding: var(--space-sm) 0;
    border-bottom: 1px solid var(--border-primary);
    width: 100%;
    text-align: center;
  }

  .nav-link:last-child {
    border-bottom: none;
  }
}

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

.navbar {
  animation: slideInDown 0.6s var(--animation-easing) forwards;
}

/* Micro-interactions */
.nav-link:hover {
  transform: translateY(-1px);
}

.hamburger:hover {
  transform: scale(1.1);
}

.hamburger:active {
  transform: scale(0.95);
}

/* Accessibility */
.nav-link:focus-visible {
  outline: 2px solid var(--primary-color);
  outline-offset: 4px;
  border-radius: var(--radius-sm);
}

.hamburger:focus-visible {
  outline: 2px solid var(--primary-color);
  outline-offset: 2px;
  border-radius: var(--radius-sm);
}

/* Performance optimizations */
.navbar {
  contain: layout style;
}

.nav-menu {
  contain: layout;
}

/* High contrast mode support */
@media (prefers-contrast: high) {
  .nav-link {
    font-weight: 600;
  }
  
  .navbar {
    border-bottom-width: 2px;
  }
}