:root {
  --primary: #1e3a8a;
  --secondary: #facc15;
  --accent: #ffffff;
  --text: #333333;
  --light-bg: #f9fafb;
  --border: #e5e7eb;
  --shadow: rgba(0, 0, 0, 0.08);
  --hover-shadow: rgba(0, 0, 0, 0.15);
  --transition-speed: 0.3s;
  --border-radius-sm: 6px;
  --border-radius-md: 8px;
  --border-radius-lg: 20px;
}

/* Theme variations remain untouched */
[data-theme="royal"] {
  --primary: #1e3a8a;
  --secondary: #facc15;
  --accent: #ffffff;
  --text: #1a1a1a;
}

[data-theme="maroon"] {
  --primary: #800000;
  --secondary: #faebd7;
  --accent: #ffffff;
  --text: #333333;
}

[data-theme="forest"] {
  --primary: #2f4f4f;
  --secondary: #e8f0fe;
  --accent: #ffffff;
  --text: #2c3e50;
}

/* Improved navbar with better performance and accessibility */
.navbar {
  background-color: var(--primary);
  padding: 0.8rem 2rem;
  position: fixed;
  width: 100%;
  top: 0;
  z-index: 1000;
  box-shadow: 0 2px 10px var(--shadow);
  transition: box-shadow var(--transition-speed) ease;
  will-change: box-shadow;
  color: var(--accent);
}

.navbar.scrolled {
  box-shadow: 0 4px 20px var(--hover-shadow);
}

.nav-container {
  max-width: 1400px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  position: relative;
  height: 50px;
}

.logo-section {
  display: flex;
  align-items: center;
  text-decoration: none;
  color: var(--accent);
  transition: opacity var(--transition-speed) ease;
  min-width: fit-content;
  position: relative;
}

.logo-section:hover {
  opacity: 0.9;
}

.logo-section:focus-visible {
  outline: 2px solid var(--secondary);
  outline-offset: 4px;
  border-radius: var(--border-radius-sm);
}

.logo-placeholder img {
  width: 50px;
  height: 50px;
  border-radius: var(--border-radius-md);
  object-fit: contain;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
  transition: transform var(--transition-speed) ease;
}

.logo-section:hover .logo-placeholder img {
  transform: scale(1.05);
}

.brand-text {
  margin-left: 12px;
  transition: transform var(--transition-speed) ease;
}

.logo-section:hover .brand-text {
  transform: translateX(2px);
}

.brand-text h1 {
  font-size: 20px;
  margin: 0;
  font-weight: 600;
  letter-spacing: 0.5px;
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
}

.brand-text p {
  font-size: 14px;
  margin: 2px 0 0;
  opacity: 0.9;
  transition: opacity var(--transition-speed) ease;
}

.logo-section:hover .brand-text p {
  opacity: 1;
}

.nav-links {
  display: flex;
  gap: 1rem;
  align-items: center;
  margin-left: auto;
  height: 100%;
}

.nav-button {
  color: var(--accent);
  text-decoration: none;
  padding: 0.5rem 1rem;
  border-radius: var(--border-radius-sm);
  transition: all var(--transition-speed) ease;
  font-weight: 500;
  letter-spacing: 0.2px;
  white-space: nowrap;
  border: none;
  background: none;
  cursor: pointer;
  font-size: 14px;
  position: relative;
  overflow: hidden;
}

.nav-button::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  width: 0;
  height: 2px;
  background-color: var(--secondary);
  transition: all var(--transition-speed) ease;
  transform: translateX(-50%);
  opacity: 0;
}

.nav-button:hover::after {
  width: 60%;
  opacity: 1;
}

.nav-button:hover {
  background-color: rgba(255, 255, 255, 0.1);
  transform: translateY(-1px);
}

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

.nav-button:focus-visible {
  outline: 2px solid var(--secondary);
  outline-offset: 2px;
}

.login-button {
  background-color: var(--secondary);
  color: var(--primary);
  font-weight: 600;
  padding: 0.5rem 1.5rem;
  border-radius: var(--border-radius-lg);
  transition: all var(--transition-speed) ease;
  margin-left: 0.5rem;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
  position: relative;
  overflow: hidden;
  z-index: 1;
}

.login-button::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(255, 255, 255, 0.2);
  transform: translateX(-100%);
  transition: transform var(--transition-speed) ease;
  z-index: -1;
}

.login-button:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.login-button:hover::before {
  transform: translateX(0);
}

.login-button:active {
  transform: translateY(0);
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

/* Improved Dropdown Styles with JavaScript control */
.dropdown {
  position: relative;
  display: inline-block;
}

.dropdown-content {
  visibility: hidden;
  opacity: 0;
  position: absolute;
  background-color: var(--accent);
  min-width: 220px;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.12);
  border-radius: var(--border-radius-md);
  top: 100%;
  left: 0;
  margin-top: 0.5rem;
  border: 1px solid var(--border);
  z-index: 1001;
  transform: translateY(10px);
  transition: opacity var(--transition-speed) ease, 
              transform var(--transition-speed) ease,
              visibility var(--transition-speed) ease;
  overflow: hidden;
}

.dropdown-content.show {
  visibility: visible;
  opacity: 1;
  transform: translateY(0);
}

.dropdown-content::before {
  content: '';
  position: absolute;
  top: -6px;
  left: 16px;
  width: 12px;
  height: 12px;
  background-color: var(--accent);
  transform: rotate(45deg);
  border-top: 1px solid var(--border);
  border-left: 1px solid var(--border);
}

.dropdown-content a {
  color: var(--text);
  padding: 0.75rem 1rem;
  text-decoration: none;
  display: flex;
  align-items: center;
  transition: all var(--transition-speed) ease;
  font-size: 14px;
  position: relative;
}

.dropdown-content a:hover {
  background-color: var(--light-bg);
  color: var(--primary);
  padding-left: 1.25rem;
}

.dropdown-content a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 1px;
  background-color: var(--border);
}

.dropdown-content a:last-child::after {
  display: none;
}

/* Improved Mobile Menu Button */
.mobile-menu-button {
  display: none;
  background: none;
  border: none;
  color: var(--accent);
  font-size: 1.5rem;
  cursor: pointer;
  padding: 0.5rem;
  z-index: 1002;
  transition: transform var(--transition-speed) ease;
  border-radius: var(--border-radius-sm);
}

.mobile-menu-button:hover {
  background-color: rgba(255, 255, 255, 0.1);
}

.mobile-menu-button:active {
  transform: scale(0.95);
}

.mobile-menu-button:focus-visible {
  outline: 2px solid var(--secondary);
  outline-offset: 2px;
}

/* Mobile menu animation */
.mobile-menu-overlay {
  position: fixed;
  top: 70px;  /* Height of navbar */
  left: 0;
  right: 0;
  bottom: 0;
  background-color: rgba(0, 0, 0, 0.5);
  z-index: 999;
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition-speed) ease, 
              visibility var(--transition-speed) ease;
}

.mobile-menu-overlay.active {
  opacity: 1;
  visibility: visible;
}

/* Enhanced Responsive Design */
@media (max-width: 1200px) {
  .nav-links {
    gap: 0.5rem;
  }
  
  .nav-button {
    padding: 0.5rem 0.75rem;
  }
}

@media (max-width: 992px) {
  .brand-text h1 {
    font-size: 18px;
  }
  
  .brand-text p {
    font-size: 13px;
  }
  
  .nav-links {
    gap: 0.25rem;
  }
}

@media (max-width: 768px) {
  .navbar {
    padding: 0.8rem 1rem;
  }

  .nav-container {
    height: auto;
  }

  .mobile-menu-button {
    display: block;
  }

  .nav-links {
    position: fixed;
    top: 70px; /* Height of navbar */
    left: 0;
    right: 0;
    background-color: var(--primary);
    flex-direction: column;
    align-items: stretch;
    padding: 1rem;
    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.15);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    gap: 0.5rem;
    z-index: 1000;
    transform: translateY(-100%);
    opacity: 0;
    visibility: hidden;
    transition: transform var(--transition-speed) ease,
                opacity var(--transition-speed) ease,
                visibility var(--transition-speed) ease;
    height: auto;
    max-height: calc(100vh - 70px);
    overflow-y: auto;
  }
  
  .nav-links.active {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
  }
  
  .nav-links .nav-button {
    padding: 0.75rem 1rem;
    border-radius: var(--border-radius-sm);
    width: 100%;
    text-align: left;
  }
  
  .nav-links .nav-button::after {
    display: none;
  }
  
  .nav-links .dropdown {
    width: 100%;
  }
  
  .nav-links .dropdown-content {
    position: static;
    width: 100%;
    margin-top: 0.25rem;
    margin-bottom: 0.5rem;
    border-radius: var(--border-radius-sm);
    box-shadow: none;
    border: 1px solid rgba(255, 255, 255, 0.1);
    background-color: rgba(255, 255, 255, 0.05);
    transform: none;
    visibility: hidden;
    height: 0;
    overflow: hidden;
    padding: 0;
    margin: 0;
    transition: height var(--transition-speed) ease,
                padding var(--transition-speed) ease,
                margin var(--transition-speed) ease,
                visibility var(--transition-speed) ease;
  }
  
  .nav-links .dropdown-content.show {
    visibility: visible;
    height: auto;
    padding: 0.5rem 0;
    margin: 0.5rem 0;
  }
  
  .nav-links .dropdown-content::before {
    display: none;
  }
  
  .nav-links .dropdown-content a {
    color: var(--accent);
    padding: 0.75rem 1rem 0.75rem 1.5rem;
  }
  
  .nav-links .dropdown-content a:hover {
    background-color: rgba(255, 255, 255, 0.1);
    color: var(--secondary);
  }
  
  .nav-links .login-button {
    margin: 0.5rem 0 0;
    text-align: center;
    width: 100%;
  }
}

@media (max-width: 480px) {
  .logo-placeholder img {
    width: 40px;
    height: 40px;
  }

  .brand-text h1 {
    font-size: 16px;
  }
  
  .brand-text p {
    font-size: 12px;
  }
  
  .nav-links .nav-button {
    padding: 0.6rem 0.75rem;
    font-size: 13px;
  }
  
  .login-button {
    padding: 0.5rem 1.25rem;
    font-size: 13px;
  }
}