/* Header Styles */
.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  padding: 20px 0;
  z-index: 1000;
  transition: var(--transition);
  background-color: transparent;
}

.header.scrolled {
  background-color: var(--light-color);
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
  padding: 10px 0;
}

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

.logo {
  display: flex;
  align-items: center;
}

.logo img {
  width: 50px;
  height: 50px;
  border-radius: 50%;
  object-fit: cover;
  margin-right: 12px;
}

.logo h1 {
  font-size: 1.8rem;
  margin: 0;
  font-weight: 700;
  color: var(--primary-color);
  transition: var(--transition);
}

.header.scrolled .logo h1 {
  color: var(--secondary-color);
}

.logo span {
  color: var(--dark-color);
}

nav {
  display: flex;
  align-items: center;
}

.nav-menu {
  display: flex;
  gap: 1.5rem;
}

.nav-link {
  color: var(--dark-color);
  font-weight: 600;
  font-size: 1rem;
  padding: 5px 0;
  position: relative;
  transition: var(--transition);
}

.header.scrolled .nav-link {
  color: var(--secondary-color);
}

.nav-link:after {
  content: '';
  position: absolute;
  width: 0;
  height: 2px;
  bottom: 0;
  left: 0;
  background-color: var(--primary-color);
  transition: var(--transition);
}

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

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

.hamburger {
  display: none;
  cursor: pointer;
}

.bar {
  display: block;
  width: 25px;
  height: 3px;
  margin: 5px auto;
  background-color: var(--light-color);
  transition: var(--transition);
}

.header.scrolled .bar {
  background-color: var(--secondary-color);
}

/* Responsive Styles */
@media (max-width: 992px) {
  .nav-menu {
    position: fixed;
    left: -100%;
    top: 80px;
    flex-direction: column;
    background-color: var(--light-color);
    width: 100%;
    text-align: center;
    transition: var(--transition);
    box-shadow: 0 10px 15px rgba(0, 0, 0, 0.1);
    padding: 2rem 0;
    gap: 2rem;
  }
  
  .nav-menu.active {
    left: 0;
  }
  
  .nav-link {
    color: var(--secondary-color);
  }
  
  .hamburger {
    display: block;
  }
  
  .hamburger.active .bar:nth-child(2) {
    opacity: 0;
  }
  
  .hamburger.active .bar:nth-child(1) {
    transform: translateY(8px) rotate(45deg);
  }
  
  .hamburger.active .bar:nth-child(3) {
    transform: translateY(-8px) rotate(-45deg);
  }
  
  .logo h1 {
    font-size: 1.5rem;
  }
}

@media (max-width: 480px) {
  .logo img {
    width: 40px;
    height: 40px;
  }
  
  .logo h1 {
    font-size: 1.3rem;
  }
}