:root {
  --primary-color: #2563eb;
  --secondary-color: #06b6d4;
  --text-color: #1f2937;
  --bg-color: #ffffff;
  --dropdown-bg: #ffffff;
  --border-color: #e5e7eb;
  --hover-color: #eff6ff;
  --transition: all 0.3s ease;
  --dark-bg: #090c13;
  --dark-surface: #0f141b;
  --dark-hover: #1e3a8a;
  /* Theme icon colors */
  --sun-color: #facc15;
  --moon-color: #374151;
  --moon-color-dark: #e5e7eb;
  --auto-icon-color: #3b82f6;
  --auto-icon-color-dark: #60a5fa;
}

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

body {
  font-family: 'Montserrat', sans-serif;
  color: var(--text-color);
  background-color: var(--bg-color);
  transition: var(--transition);
}

body.dark-mode {
  --text-color: #f9fafb;
  --bg-color: var(--dark-bg);
  --dropdown-bg: var(--dark-surface);
  --border-color: #374151;
  --hover-color: var(--dark-hover);
}

.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 50;
  transition: all 0.3s ease;
  background-color: transparent;
}

.header.scrolled {
  background-color: rgba(255, 255, 255, 0.95);
  box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
  backdrop-filter: blur(12px);
}

body.dark-mode .header.scrolled {
  background-color: rgba(17, 24, 39, 0.95);
}

.header-container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 1rem;
}

.header-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 4rem;
}

/* Mobile Layout */
.mobile-layout {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
}

.menu-button {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0.5rem;
  background: none;
  border: none;
  color: var(--text-color);
  cursor: pointer;
  transition: var(--transition);
}

.menu-button:hover {
  color: var(--primary-color);
}

.logo-container {
  display: flex;
  align-items: center;
  margin-left: 1rem;
  cursor: pointer;
}

.logo {
  height: 2rem;
  width: 2rem;
  object-fit: contain;
  margin-right: 0.75rem;
}

.logo-text {
  font-size: 1.125rem;
  font-weight: 700;
  background: linear-gradient(to right, var(--primary-color), var(--secondary-color));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.theme-container {
  position: relative;
}

.theme-button {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 2.5rem;
  height: 2.5rem;
  border-radius: 50%;
  background-color: #f3f4f6;
  border: none;
  cursor: pointer;
  transition: var(--transition);
}

body.dark-mode .theme-button {
  background-color: #1f2937;
}

.theme-button:hover {
  background-color: #dbeafe;
}

body.dark-mode .theme-button:hover {
  background-color: #1e3a8a;
}

/* Theme icon colors */
#sunIcon {
  color: var(--sun-color);
}

#moonIcon {
  color: var(--moon-color);
}

body.dark-mode #moonIcon {
  color: var(--moon-color-dark);
}

#autoIcon {
  color: var(--auto-icon-color);
}

body.dark-mode #autoIcon {
  color: var(--auto-icon-color-dark);
}

/* Desktop theme icons */
#desktopSunIcon {
  color: var(--sun-color);
}

#desktopMoonIcon {
  color: var(--moon-color);
}

body.dark-mode #desktopMoonIcon {
  color: var(--moon-color-dark);
}

#desktopAutoIcon {
  color: var(--auto-icon-color);
}

body.dark-mode #desktopAutoIcon {
  color: var(--auto-icon-color-dark);
}

.theme-dropdown {
  position: absolute;
  right: 0;
  top: 100%;
  margin-top: 0.5rem;
  width: 9rem;
  background-color: var(--dropdown-bg);
  border: 1px solid var(--border-color);
  border-radius: 0.75rem;
  box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
  z-index: 50;
  display: none;
}

.theme-dropdown.show {
  display: block;
}

.theme-option {
  display: flex;
  align-items: center;
  width: 100%;
  padding: 0.5rem 1rem;
  background: none;
  border: none;
  text-align: left;
  cursor: pointer;
  transition: var(--transition);
  color: var(--text-color);
}

.theme-option:first-child {
  border-radius: 0.75rem 0.75rem 0 0;
}

.theme-option:last-child {
  border-radius: 0 0 0.75rem 0.75rem;
}

.theme-option:hover {
  background-color: #eff6ff;
}

body.dark-mode .theme-option:hover {
  background-color: rgba(30, 58, 138, 0.3);
}

.theme-option.active {
  font-weight: 600;
  color: var(--primary-color);
}

.theme-icon {
  margin-right: 0.5rem;
}

/* Theme option icon colors */
.theme-option[data-theme="light"] .theme-icon {
  color: var(--sun-color);
}

.theme-option[data-theme="dark"] .theme-icon {
  color: var(--moon-color);
}

body.dark-mode .theme-option[data-theme="dark"] .theme-icon {
  color: var(--moon-color-dark);
}

.theme-option[data-theme="system"] .theme-icon {
  color: var(--auto-icon-color);
}

body.dark-mode .theme-option[data-theme="system"] .theme-icon {
  color: var(--auto-icon-color-dark);
}

/* Desktop Layout */
.desktop-layout {
  display: none;
  align-items: center;
  justify-content: space-between;
  width: 100%;
}

.desktop-nav {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.nav-item {
  color: var(--text-color);
  font-weight: 500;
  font-size: 0.875rem;
  text-transform: capitalize;
  cursor: pointer;
  transition: var(--transition);
  background: none;
  border: none;
}

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

.more-dropdown {
  position: relative;
}

.more-button {
  display: flex;
  align-items: center;
  color: var(--text-color);
  font-weight: 500;
  font-size: 0.875rem;
  cursor: pointer;
  transition: var(--transition);
  background: none;
  border: none;
}

.more-button:hover {
  color: var(--primary-color);
}

.more-icon {
  margin-left: 0.25rem;
  transition: transform 0.3s ease;
}

.more-icon.rotate {
  transform: rotate(180deg);
}

.more-menu {
  position: absolute;
  top: 100%;
  right: 0;
  margin-top: 0.5rem;
  width: 10rem;
  background-color: var(--dropdown-bg);
  border: 1px solid var(--border-color);
  border-radius: 0.5rem;
  box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
  z-index: 50;
  padding: 0.5rem 0;
  display: none;
}

.more-menu.show {
  display: block;
}

.more-option {
  display: block;
  width: 100%;
  padding: 0.5rem 1rem;
  text-align: left;
  color: var(--text-color);
  font-size: 0.875rem;
  text-transform: capitalize;
  cursor: pointer;
  transition: var(--transition);
  background: none;
  border: none;
}

.more-option:hover {
  background-color: #f3f4f6;
  color: var(--primary-color);
}

body.dark-mode .more-option:hover {
  background-color: #374151;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

/* Mobile Menu */
.mobile-menu {
  display: none;
  background-color: rgba(255, 255, 255, 0.95);
  border-top: 1px solid #e5e7eb;
  backdrop-filter: blur(12px);
}

body.dark-mode .mobile-menu {
  background-color: rgba(17, 24, 39, 0.95);
  border-top-color: #374151;
}

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

.mobile-menu-content {
  padding: 1.5rem 1rem;
}

.mobile-nav-item {
  display: block;
  width: 100%;
  padding: 0.5rem 0;
  text-align: left;
  color: var(--text-color);
  font-weight: 500;
  font-size: 0.875rem;
  text-transform: capitalize;
  cursor: pointer;
  transition: var(--transition);
  background: none;
  border: none;
}

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

.mobile-more-section {
  padding: 0.5rem 0;
}

.mobile-more-title {
  font-weight: 600;
  color: var(--text-color);
  font-size: 0.875rem;
  margin-bottom: 0.5rem;
}

.mobile-more-options {
  padding-left: 1rem;
}

.mobile-more-option {
  display: block;
  width: 100%;
  padding: 0.25rem 0;
  text-align: left;
  color: var(--text-color);
  font-weight: 500;
  font-size: 0.875rem;
  text-transform: capitalize;
  cursor: pointer;
  transition: var(--transition);
  background: none;
  border: none;
}

.mobile-more-option:hover {
  color: var(--primary-color);
}

/* Responsive */
@media (min-width: 768px) {
  .mobile-layout {
    display: none;
  }

  .desktop-layout {
    display: flex;
  }

  .header-content {
    height: 4.5rem;
  }
}

/* Main content placeholder */
.main-content {
  padding-top: 5rem;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
}

.main-content h1 {
  font-size: 3rem;
  font-weight: 700;
  margin-bottom: 1rem;
  background: linear-gradient(to right, var(--primary-color), var(--secondary-color));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.main-content p {
  font-size: 1.25rem;
  color: var(--text-color);
  max-width: 800px;
  text-align: center;
  margin-bottom: 2rem;
}

.cta-button {
  display: inline-block;
  padding: 0.75rem 2rem;
  background: linear-gradient(to right, var(--primary-color), var(--secondary-color));
  color: white;
  font-weight: 600;
  border-radius: 9999px;
  text-decoration: none;
  transition: var(--transition);
}

.cta-button:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
}

/* Added for login button */
.login-button {
  display: inline-block;
  padding: 0.375rem 0.75rem;
  background: linear-gradient(to right, var(--primary-color), var(--secondary-color));
  color: white;
  font-weight: 500;
  border-radius: 9999px;
  text-decoration: none;
  transition: var(--transition);
  font-size: 0.75rem;
}

.login-button:hover {
  background: linear-gradient(to right, #1d4ed8, #0891b2);
}