* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

.header {
  position: sticky;
  top: 0;
  background-color: white;
  padding: 15px 20px;
  border-bottom: 1px solid #e2e8f0;
  z-index: 1000;
  box-shadow: 0 2px 10px rgba(0,0,0,0.05);
}

.container {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
  gap: 20px;
}

.logo a {
  text-decoration: none;
  color: black;
  font-size: 1.8rem;
  font-weight: 700;
  white-space: nowrap;
  transition: color 0.3s;
}

.logo a:hover {
  color: green;
}

nav ul {
  list-style: none;
  display: flex;
  justify-content: center;
  gap: 30px;
  margin: 0;
  padding: 0;
}

nav ul li a {
  text-decoration: none;
  color: black;
  font-weight: 600;
  transition: color 0.3s;
  padding: 5px 0;
  position: relative;
}

nav ul li a:hover {
  color: green;
}

nav ul li a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background-color: #38a169;
  transition: width 0.3s;
}

nav ul li a:hover::after {
  width: 100%;
}

.auth-container {
  display: flex;
  gap: 15px;
  align-items: center;
  justify-content: flex-end;
}

.auth-container a {
  text-decoration: none;
  color: black;
  font-weight: 500;
  padding: 8px 15px;
  border-radius: 5px;
  transition: all 0.3s;
  white-space: nowrap;
  font-size: 0.95rem;
}

.auth-container a:hover {
  color: #fff;
  background-color: #38a169;
}

.auth-container a i {
  margin-right: 5px;
}

.dropdown {
  position: relative;
  display: inline-block;
}

.dropdown-content {
  display: none;
  position: absolute;
  right: 0;
  background-color: #fff;
  min-width: 200px;
  box-shadow: 0 8px 16px rgba(0,0,0,0.1);
  border-radius: 5px;
  z-index: 1;
  padding: 10px 0;
}

.dropdown:hover .dropdown-content {
  display: block;
}

.dropdown-content a {
  display: block;
  padding: 10px 20px;
  color: #4a5568;
  text-decoration: none;
  transition: all 0.3s;
}

.dropdown-content a:hover {
  background-color: #f0fff4;
  color: #38a169;
}

/* Mobile Menu */
.hamburger {
  display: none;
  flex-direction: column;
  cursor: pointer;
  gap: 5px;
  z-index: 1001;
}

.hamburger span {
  width: 25px;
  height: 3px;
  background: #2d3748;
  border-radius: 2px;
  transition: all 0.3s;
}

/* Responsive Styles */
@media (max-width: 992px) {
  .container {
    grid-template-columns: auto 1fr auto;
  }

  nav ul {
    gap: 15px;
  }

  .auth-container {
    gap: 10px;
  }
}

@media (max-width: 768px) {
  .container {
    grid-template-columns: auto 1fr auto;
  }

 .hamburger {
    display: flex;
    order: 1;
  }

  nav {
    position: fixed;
    top: 70px;
    left: 0;
    width: 100%;
    background: white;
    box-shadow: 0 5px 10px rgba(0,0,0,0.1);
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
  }

  .logo {
    order: 2;
    text-align: center;
  }

  .auth-container {
    order: 3;
    display: none;
  }

  nav.active {
    max-height: 500px;
    padding: 20px 0;
    border-top: 1px solid #e2e8f0;
  }

  nav ul {
    flex-direction: column;
    align-items: center;
    gap: 0;
  }

  nav ul li {
    width: 100%;
    text-align: center;
    padding: 12px 0;
    border-bottom: 1px solid #f0f4f8;
  }

  nav ul li a::after {
    display: none;
  }

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

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

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

  .dropdown-content {
    position: static;
    box-shadow: none;
    display: none;
    padding: 0;
  }

  .dropdown:hover .dropdown-content {
    display: none;
  }

  .dropdown.active .dropdown-content {
    display: block;
  }
  
}



@media (max-width: 768px) {
  
  .auth-container {
    display: none; 
    position: absolute;
    top: 70px;
    right: 20px;
    background: white;
    padding: 15px;
    border-radius: 5px;
    box-shadow: 0 5px 10px rgba(0,0,0,0.1);
    flex-direction: column;
    gap: 10px;
    z-index: 1002;
  }

  .auth-container.active {
    display: flex;
  }

  
  .container {
    grid-template-columns: auto 1fr;
  }

  
  .logo {
    grid-column: 2;
    text-align: center;
  }

  
  nav {
    top: 70px;
    z-index: 1001;
  }

  
  .auth-toggle {
    display: block;
    background: none;
    border: none;
    color: #4a5568;
    font-size: 1.2rem;
    cursor: pointer;
    order: 3;
  }
}