/* navbar.css - Sticky glass navigation styling */

header {
  position: fixed;
  top: 1.5rem;
  left: 0;
  width: 100%;
  z-index: 100;
  padding: 0 2rem;
  transition: transform var(--transition-smooth);
}

.navbar-container {
  max-width: var(--max-width);
  margin: 0 auto;
  height: var(--header-height);
  background: rgba(255, 255, 255, 0.6);
  border: var(--glass-border);
  backdrop-filter: var(--glass-backdrop-blur);
  -webkit-backdrop-filter: var(--glass-backdrop-blur);
  border-radius: 20px;
  box-shadow: var(--shadow-md);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 2rem;
  position: relative;
  transition: padding var(--transition-smooth), border-color var(--transition-smooth), box-shadow var(--transition-smooth);
}

header.scrolled .navbar-container {
  height: calc(var(--header-height) - 15px);
  background: rgba(255, 255, 255, 0.75);
  box-shadow: var(--shadow-lg);
  border-color: rgba(59, 130, 246, 0.1);
}

/* Logo brand styling */
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 1.4rem;
  color: var(--color-text-primary);
  z-index: 102;
}

.brand-icon {
  width: 28px;
  height: 28px;
  background: var(--gradient-primary);
  border-radius: 8px;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}

.brand-icon::after {
  content: '';
  width: 10px;
  height: 10px;
  background-color: #FFFFFF;
  border-radius: 50%;
}

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

/* Navbar Navigation links */
.nav-menu {
  display: flex;
  align-items: center;
  gap: 2rem;
}

.nav-link {
  font-family: var(--font-heading);
  font-weight: 500;
  font-size: 0.95rem;
  color: var(--color-text-secondary);
  position: relative;
  padding: 0.5rem 0;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 2px;
  background: var(--gradient-primary);
  transform: scaleX(0);
  transform-origin: right;
  transition: transform var(--transition-smooth);
}

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

.nav-link:hover::after {
  transform: scaleX(1);
  transform-origin: left;
}

/* Header buttons */
.nav-actions {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.btn-nav {
  padding: 0.6rem 1.25rem;
  font-size: 0.85rem;
  border-radius: 10px;
}

/* Mobile Toggle Hamburger button */
.mobile-toggle {
  display: none;
  flex-direction: column;
  justify-content: space-between;
  width: 24px;
  height: 18px;
  cursor: pointer;
  z-index: 102;
}

.mobile-toggle span {
  width: 100%;
  height: 2px;
  background-color: var(--color-text-primary);
  border-radius: 2px;
  transition: transform var(--transition-smooth), opacity var(--transition-smooth);
}

/* Active Hamburger states */
.mobile-toggle.active span:nth-child(1) {
  transform: translateY(8px) rotate(45deg);
}

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

.mobile-toggle.active span:nth-child(3) {
  transform: translateY(-8px) rotate(-45deg);
}

/* Scroll progress indicator */
.scroll-progress-container {
  position: absolute;
  bottom: -1px;
  left: 20px;
  right: 20px;
  height: 2px;
  background-color: rgba(59, 130, 246, 0.05);
  border-radius: 99px;
  overflow: hidden;
}

.scroll-progress-bar {
  height: 100%;
  width: 0%;
  background: var(--gradient-primary);
  transition: width 0.1s linear;
}

/* Responsive Navbar Media Queries */
@media (max-width: 1024px) {
  header {
    top: 0;
    padding: 0;
  }
  
  .navbar-container {
    border-radius: 0;
    border-top: none;
    border-left: none;
    border-right: none;
    height: 70px;
    padding: 0 1.5rem;
  }

  header.scrolled .navbar-container {
    height: 60px;
  }

  .scroll-progress-container {
    left: 0;
    right: 0;
    bottom: 0;
  }

  .mobile-toggle {
    display: flex;
  }

  .nav-menu {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(20px);
    flex-direction: column;
    justify-content: center;
    gap: 2.5rem;
    transform: translateY(-100%);
    transition: transform var(--transition-slow);
    z-index: 101;
  }

  .nav-menu.active {
    transform: translateY(0);
  }

  .nav-link {
    font-size: 1.4rem;
    font-weight: 600;
  }

  .nav-actions {
    display: none; /* Injected inside mobile menu dynamically if needed, or hidden */
  }
}

.nav-social-icons {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-right: 8px;
}

@media (max-width: 900px) {
  .nav-social-icons {
    display: none !important;
  }
}