.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(10, 10, 10, 0.85);
  backdrop-filter: blur(24px) saturate(180%);
  border-bottom: 1px solid rgba(57, 255, 138, 0.08);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.6);
  padding: 0.9rem 0;
  transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1), opacity 0.4s ease, background 0.5s
    cubic-bezier(0.4, 0, 0.2, 1);
}

.header.scrolled {
  background: rgba(5, 5, 5, 0.95);
  box-shadow: 0 12px 48px rgba(0, 0, 0, 0.8), 0 0 60px rgba(57, 255, 138, 0.12);
  transform: translateY(0);
  border-bottom-color: rgba(57, 255, 138, 0.15);
}

/* Added hidden class to hide header on scroll down */
.header.hidden {
  transform: translateY(-100%) !important;
  opacity: 0 !important;
}

.header::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: repeating-linear-gradient(
      90deg,
      transparent 0px,
      transparent 30px,
      rgba(255, 255, 255, 0.015) 30px,
      rgba(255, 255, 255, 0.015) 31px
    ),
    repeating-linear-gradient(
      0deg,
      transparent 0px,
      transparent 30px,
      rgba(255, 255, 255, 0.015) 30px,
      rgba(255, 255, 255, 0.015) 31px
    );
  pointer-events: none;
  z-index: -1;
  opacity: 0.5;
}

.header-content {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  font-size: 1.5rem;
  font-family: "Rubik Glitch", cursive;
  color: var(--soft-white);
  text-decoration: none;
  transition: all 0.4s ease;
  text-transform: uppercase;
  letter-spacing: 2px;
}

.logo:hover {
  transform: translateY(-2px);
  filter: drop-shadow(0 0 16px rgba(57, 255, 138, 0.4));
}

.logo img {
  height: 45px;
  width: auto;
  transition: all 0.5s cubic-bezier(0.68, -0.55, 0.265, 1.55);
}

.logo:hover img {
  transform: scale(1.08);
}

.nav-desktop {
  display: flex;
  gap: 2.5rem;
  align-items: center;
}

.nav-desktop a {
  color: var(--soft-gray);
  text-decoration: none;
  font-weight: 500;
  font-size: 0.95rem;
  font-family: "Rubik Glitch", cursive;
  position: relative;
  transition: all 0.3s ease;
  padding: 0.5rem 0;
}

.nav-desktop a::before {
  content: "";
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 0;
  height: 2px;
  background: var(--accent-green);
  transition: width 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  box-shadow: 0 0 12px var(--accent-green);
}

.nav-desktop a:hover {
  color: var(--soft-white);
}

.nav-desktop a:hover::before {
  width: 100%;
}

.hamburger {
  display: none;
  flex-direction: column;
  gap: 6px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
}

.hamburger span {
  width: 28px;
  height: 2.5px;
  background: var(--soft-white);
  border-radius: 2px;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.hamburger:hover span {
  background: var(--accent-green);
}

.hamburger.active span:nth-child(1) {
  transform: rotate(45deg) translate(8px, 8px);
}

.hamburger.active span:nth-child(2) {
  opacity: 0;
  transform: translateX(-20px);
}

.hamburger.active span:nth-child(3) {
  transform: rotate(-45deg) translate(8px, -8px);
}

.nav-mobile {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  background: rgba(5, 5, 5, 0.98);
  backdrop-filter: blur(20px);
  flex-direction: column;
  padding: 2rem;
  gap: 0.5rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  animation: slideDownFade 0.3s ease;
}

@keyframes slideDownFade {
  from {
    opacity: 0;
    transform: translateY(-20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.nav-mobile.active {
  display: flex;
}

.nav-mobile a {
  color: var(--soft-gray);
  text-decoration: none;
  padding: 1rem 1.5rem;
  border-radius: 8px;
  transition: all 0.3s ease;
  border: 1px solid transparent;
  font-family: "Rubik Glitch", cursive;
}

.nav-mobile a:hover {
  color: var(--soft-white);
  background: rgba(255, 255, 255, 0.03);
  border-color: rgba(57, 255, 138, 0.2);
  padding-left: 2rem;
}

@media (max-width: 768px) {
  .nav-desktop {
    display: none;
  }
  .hamburger {
    display: flex;
  }
  .header {
    padding: 0.75rem 0;
  }
  .header-content {
    padding: 0 1.5rem;
  }
  .logo {
    font-size: 1.25rem;
  }
  .logo img {
    width: auto; /* Keep width auto, adjust height for smaller screens */
    height: 38px; /* Slightly smaller logo for mobile */
  }
}