/* Material 3 Expressive Theming - Color System */
:root {
  /* Material 3 Color Tokens - Medium Blue Theme */
  --md-sys-color-primary: #0000CD;
  --md-sys-color-on-primary: #FFFFFF;
  --md-sys-color-primary-container: #E6E6FF;
  --md-sys-color-on-primary-container: #000080;
  
  --md-sys-color-secondary: #4A90E2;
  --md-sys-color-on-secondary: #FFFFFF;
  --md-sys-color-secondary-container: #E8F4FD;
  --md-sys-color-on-secondary-container: #1E3A8A;
  
  --md-sys-color-tertiary: #7B68EE;
  --md-sys-color-on-tertiary: #FFFFFF;
  --md-sys-color-tertiary-container: #F0EDFF;
  --md-sys-color-on-tertiary-container: #4C1D95;
  
  --md-sys-color-surface: #FFFBFE;
  --md-sys-color-on-surface: #1C1B1F;
  --md-sys-color-surface-variant: #E7E0EC;
  --md-sys-color-on-surface-variant: #49454F;
  
  --md-sys-color-background: #FFFBFE;
  --md-sys-color-on-background: #1C1B1F;
  
  --md-sys-color-error: #BA1A1A;
  --md-sys-color-on-error: #FFFFFF;
  --md-sys-color-error-container: #FFDAD6;
  --md-sys-color-on-error-container: #410002;
  
  --md-sys-color-outline: #79747E;
  --md-sys-color-outline-variant: #CAC4D0;
  
  /* Material 3 Dark Theme Colors - Medium Blue Theme */
  --md-sys-color-primary-dark: #5C7CFF;
  --md-sys-color-on-primary-dark: #000080;
  --md-sys-color-primary-container-dark: #0000CD;
  --md-sys-color-on-primary-container-dark: #E6E6FF;
  
  --md-sys-color-secondary-dark: #7BB3FF;
  --md-sys-color-on-secondary-dark: #1E3A8A;
  --md-sys-color-secondary-container-dark: #4A90E2;
  --md-sys-color-on-secondary-container-dark: #E8F4FD;
  
  --md-sys-color-tertiary-dark: #9B8AFF;
  --md-sys-color-on-tertiary-dark: #4C1D95;
  --md-sys-color-tertiary-container-dark: #7B68EE;
  --md-sys-color-on-tertiary-container-dark: #F0EDFF;
  
  --md-sys-color-surface-dark: #141218;
  --md-sys-color-on-surface-dark: #E6E1E5;
  --md-sys-color-surface-variant-dark: #49454F;
  --md-sys-color-on-surface-variant-dark: #CAC4D0;
  
  --md-sys-color-background-dark: #141218;
  --md-sys-color-on-background-dark: #E6E1E5;
  
  --md-sys-color-error-dark: #FFB4AB;
  --md-sys-color-on-error-dark: #690005;
  --md-sys-color-error-container-dark: #93000A;
  --md-sys-color-on-error-container-dark: #FFDAD6;
  
  --md-sys-color-outline-dark: #938F99;
  --md-sys-color-outline-variant-dark: #49454F;

  /* Current Theme Colors (will be set by JavaScript) */
  --current-primary: var(--md-sys-color-primary);
  --current-on-primary: var(--md-sys-color-on-primary);
  --current-primary-container: var(--md-sys-color-primary-container);
  --current-on-primary-container: var(--md-sys-color-on-primary-container);
  
  --current-secondary: var(--md-sys-color-secondary);
  --current-on-secondary: var(--md-sys-color-on-secondary);
  --current-secondary-container: var(--md-sys-color-secondary-container);
  --current-on-secondary-container: var(--md-sys-color-on-secondary-container);
  
  --current-tertiary: var(--md-sys-color-tertiary);
  --current-on-tertiary: var(--md-sys-color-on-tertiary);
  --current-tertiary-container: var(--md-sys-color-tertiary-container);
  --current-on-tertiary-container: var(--md-sys-color-on-tertiary-container);
  
  --current-surface: var(--md-sys-color-surface);
  --current-on-surface: var(--md-sys-color-on-surface);
  --current-surface-variant: var(--md-sys-color-surface-variant);
  --current-on-surface-variant: var(--md-sys-color-on-surface-variant);
  
  --current-background: var(--md-sys-color-background);
  --current-on-background: var(--md-sys-color-on-background);
  
  --current-error: var(--md-sys-color-error);
  --current-on-error: var(--md-sys-color-on-error);
  --current-error-container: var(--md-sys-color-error-container);
  --current-on-error-container: var(--md-sys-color-on-error-container);
  
  --current-outline: var(--md-sys-color-outline);
  --current-outline-variant: var(--md-sys-color-outline-variant);

  /* Material 3 Typography Scale */
  --md-sys-typescale-display-large-size: 57px;
  --md-sys-typescale-display-large-line-height: 64px;
  --md-sys-typescale-display-large-weight: 400;
  
  --md-sys-typescale-display-medium-size: 45px;
  --md-sys-typescale-display-medium-line-height: 52px;
  --md-sys-typescale-display-medium-weight: 400;
  
  --md-sys-typescale-display-small-size: 36px;
  --md-sys-typescale-display-small-line-height: 44px;
  --md-sys-typescale-display-small-weight: 400;
  
  --md-sys-typescale-headline-large-size: 32px;
  --md-sys-typescale-headline-large-line-height: 40px;
  --md-sys-typescale-headline-large-weight: 400;
  
  --md-sys-typescale-headline-medium-size: 28px;
  --md-sys-typescale-headline-medium-line-height: 36px;
  --md-sys-typescale-headline-medium-weight: 400;
  
  --md-sys-typescale-headline-small-size: 24px;
  --md-sys-typescale-headline-small-line-height: 32px;
  --md-sys-typescale-headline-small-weight: 400;
  
  --md-sys-typescale-title-large-size: 22px;
  --md-sys-typescale-title-large-line-height: 28px;
  --md-sys-typescale-title-large-weight: 400;
  
  --md-sys-typescale-title-medium-size: 16px;
  --md-sys-typescale-title-medium-line-height: 24px;
  --md-sys-typescale-title-medium-weight: 500;
  
  --md-sys-typescale-title-small-size: 14px;
  --md-sys-typescale-title-small-line-height: 20px;
  --md-sys-typescale-title-small-weight: 500;
  
  --md-sys-typescale-label-large-size: 14px;
  --md-sys-typescale-label-large-line-height: 20px;
  --md-sys-typescale-label-large-weight: 500;
  
  --md-sys-typescale-label-medium-size: 12px;
  --md-sys-typescale-label-medium-line-height: 16px;
  --md-sys-typescale-label-medium-weight: 500;
  
  --md-sys-typescale-label-small-size: 11px;
  --md-sys-typescale-label-small-line-height: 16px;
  --md-sys-typescale-label-small-weight: 500;
  
  --md-sys-typescale-body-large-size: 16px;
  --md-sys-typescale-body-large-line-height: 24px;
  --md-sys-typescale-body-large-weight: 400;
  
  --md-sys-typescale-body-medium-size: 14px;
  --md-sys-typescale-body-medium-line-height: 20px;
  --md-sys-typescale-body-medium-weight: 400;
  
  --md-sys-typescale-body-small-size: 12px;
  --md-sys-typescale-body-small-line-height: 16px;
  --md-sys-typescale-body-small-weight: 400;

  /* Material 3 Spacing */
  --md-sys-spacing-0: 0px;
  --md-sys-spacing-1: 4px;
  --md-sys-spacing-2: 8px;
  --md-sys-spacing-3: 12px;
  --md-sys-spacing-4: 16px;
  --md-sys-spacing-5: 20px;
  --md-sys-spacing-6: 24px;
  --md-sys-spacing-7: 28px;
  --md-sys-spacing-8: 32px;
  --md-sys-spacing-9: 36px;
  --md-sys-spacing-10: 40px;

  /* Material 3 Elevation */
  --md-sys-elevation-1: 0px 1px 3px 1px rgba(0, 0, 0, 0.15), 0px 1px 2px 0px rgba(0, 0, 0, 0.30);
  --md-sys-elevation-2: 0px 2px 6px 2px rgba(0, 0, 0, 0.15), 0px 1px 2px 0px rgba(0, 0, 0, 0.30);
  --md-sys-elevation-3: 0px 4px 8px 3px rgba(0, 0, 0, 0.15), 0px 1px 3px 0px rgba(0, 0, 0, 0.30);
  --md-sys-elevation-4: 0px 6px 10px 4px rgba(0, 0, 0, 0.15), 0px 2px 4px 0px rgba(0, 0, 0, 0.30);
  --md-sys-elevation-5: 0px 8px 12px 6px rgba(0, 0, 0, 0.15), 0px 4px 6px 0px rgba(0, 0, 0, 0.30);

  /* Legacy variables for backward compatibility */
  --primary: var(--current-primary);
  --primary-dark: var(--current-primary-container);
  --secondary: var(--current-secondary);
  --accent: var(--current-tertiary);
  --background: var(--current-background);
  --surface: var(--current-surface);
  --text: var(--current-on-surface);
  --text-light: var(--current-on-surface-variant);
  
  /* Typography */
  --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-size-base: var(--md-sys-typescale-body-large-size);
  --line-height-base: var(--md-sys-typescale-body-large-line-height);
  
  /* Spacing */
  --spacing-xs: var(--md-sys-spacing-1);
  --spacing-sm: var(--md-sys-spacing-2);
  --spacing-md: var(--md-sys-spacing-4);
  --spacing-lg: var(--md-sys-spacing-6);
  --spacing-xl: var(--md-sys-spacing-8);
  
  /* Border Radius */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;
  --radius-full: 9999px;
}

/* Dark Mode */
[data-theme="dark"] {
  --current-primary: var(--md-sys-color-primary-dark);
  --current-on-primary: var(--md-sys-color-on-primary-dark);
  --current-primary-container: var(--md-sys-color-primary-container-dark);
  --current-on-primary-container: var(--md-sys-color-on-primary-container-dark);
  
  --current-secondary: var(--md-sys-color-secondary-dark);
  --current-on-secondary: var(--md-sys-color-on-secondary-dark);
  --current-secondary-container: var(--md-sys-color-secondary-container-dark);
  --current-on-secondary-container: var(--md-sys-color-on-secondary-container-dark);
  
  --current-tertiary: var(--md-sys-color-tertiary-dark);
  --current-on-tertiary: var(--md-sys-color-on-tertiary-dark);
  --current-tertiary-container: var(--md-sys-color-tertiary-container-dark);
  --current-on-tertiary-container: var(--md-sys-color-on-tertiary-container-dark);
  
  --current-surface: var(--md-sys-color-surface-dark);
  --current-on-surface: var(--md-sys-color-on-surface-dark);
  --current-surface-variant: var(--md-sys-color-surface-variant-dark);
  --current-on-surface-variant: var(--md-sys-color-on-surface-variant-dark);
  
  --current-background: var(--md-sys-color-background-dark);
  --current-on-background: var(--md-sys-color-on-background-dark);
  
  --current-error: var(--md-sys-color-error-dark);
  --current-on-error: var(--md-sys-color-on-error-dark);
  --current-error-container: var(--md-sys-color-error-container-dark);
  --current-on-error-container: var(--md-sys-color-on-error-container-dark);
  
  --current-outline: var(--md-sys-color-outline-dark);
  --current-outline-variant: var(--md-sys-color-outline-variant-dark);
}

/* Reset & Base Styles */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: var(--font-family);
  font-size: var(--font-size-base);
  line-height: var(--line-height-base);
  color: var(--current-on-background);
  background: var(--current-background);
  min-height: 100vh;
  margin: 0;
  padding: 0;
  overflow-x: hidden;
  display: flex;
  flex-direction: column;
  transition: background-color 0.3s, color 0.3s;
}

/* Material 3 Typography Classes */
.display-large {
  font-size: var(--md-sys-typescale-display-large-size);
  line-height: var(--md-sys-typescale-display-large-line-height);
  font-weight: var(--md-sys-typescale-display-large-weight);
}

.display-medium {
  font-size: var(--md-sys-typescale-display-medium-size);
  line-height: var(--md-sys-typescale-display-medium-line-height);
  font-weight: var(--md-sys-typescale-display-medium-weight);
}

.display-small {
  font-size: var(--md-sys-typescale-display-small-size);
  line-height: var(--md-sys-typescale-display-small-line-height);
  font-weight: var(--md-sys-typescale-display-small-weight);
}

.headline-large {
  font-size: var(--md-sys-typescale-headline-large-size);
  line-height: var(--md-sys-typescale-headline-large-line-height);
  font-weight: var(--md-sys-typescale-headline-large-weight);
}

.headline-medium {
  font-size: var(--md-sys-typescale-headline-medium-size);
  line-height: var(--md-sys-typescale-headline-medium-line-height);
  font-weight: var(--md-sys-typescale-headline-medium-weight);
}

.headline-small {
  font-size: var(--md-sys-typescale-headline-small-size);
  line-height: var(--md-sys-typescale-headline-small-line-height);
  font-weight: var(--md-sys-typescale-headline-small-weight);
}

.title-large {
  font-size: var(--md-sys-typescale-title-large-size);
  line-height: var(--md-sys-typescale-title-large-line-height);
  font-weight: var(--md-sys-typescale-title-large-weight);
}

.title-medium {
  font-size: var(--md-sys-typescale-title-medium-size);
  line-height: var(--md-sys-typescale-title-medium-line-height);
  font-weight: var(--md-sys-typescale-title-medium-weight);
}

.title-small {
  font-size: var(--md-sys-typescale-title-small-size);
  line-height: var(--md-sys-typescale-title-small-line-height);
  font-weight: var(--md-sys-typescale-title-small-weight);
}

.label-large {
  font-size: var(--md-sys-typescale-label-large-size);
  line-height: var(--md-sys-typescale-label-large-line-height);
  font-weight: var(--md-sys-typescale-label-large-weight);
}

.label-medium {
  font-size: var(--md-sys-typescale-label-medium-size);
  line-height: var(--md-sys-typescale-label-medium-line-height);
  font-weight: var(--md-sys-typescale-label-medium-weight);
}

.label-small {
  font-size: var(--md-sys-typescale-label-small-size);
  line-height: var(--md-sys-typescale-label-small-line-height);
  font-weight: var(--md-sys-typescale-label-small-weight);
}

.body-large {
  font-size: var(--md-sys-typescale-body-large-size);
  line-height: var(--md-sys-typescale-body-large-line-height);
  font-weight: var(--md-sys-typescale-body-large-weight);
}

.body-medium {
  font-size: var(--md-sys-typescale-body-medium-size);
  line-height: var(--md-sys-typescale-body-medium-line-height);
  font-weight: var(--md-sys-typescale-body-medium-weight);
}

.body-small {
  font-size: var(--md-sys-typescale-body-small-size);
  line-height: var(--md-sys-typescale-body-small-line-height);
  font-weight: var(--md-sys-typescale-body-small-weight);
}

/* Layout Components */
.container {
  width: 88%;
  max-width: 1200px;
  margin: 0 auto;
  padding: var(--spacing-lg) 0;
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: var(--spacing-lg);
}

.card {
  background: var(--current-surface);
  border-radius: var(--radius-xl);
  padding: var(--spacing-lg);
  margin-bottom: var(--spacing-lg);
  box-shadow: var(--md-sys-elevation-1);
  border: 1px solid var(--current-outline-variant);
  transition: all 0.3s cubic-bezier(0.4, 0.0, 0.2, 1);
  color: var(--current-on-surface);
  position: relative;
  overflow: hidden;
}

.card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: var(--current-primary);
  opacity: 0;
  transition: opacity 0.3s cubic-bezier(0.4, 0.0, 0.2, 1);
}

.card:hover {
  border-color: var(--current-primary);
  box-shadow: var(--md-sys-elevation-3);
  transform: translateY(-2px);
}

.card:hover::before {
  opacity: 1;
}

.card h2 {
  color: var(--current-primary);
  margin-bottom: var(--spacing-lg);
  font-size: var(--md-sys-typescale-headline-small-size);
  line-height: var(--md-sys-typescale-headline-small-line-height);
  font-weight: var(--md-sys-typescale-headline-small-weight);
  position: relative;
}

/* Navigation */
.topnav {
  background: var(--current-primary);
  box-shadow: var(--md-sys-elevation-2);
  position: sticky;
  top: 0;
  z-index: 1000;
  color: var(--current-on-primary);
  backdrop-filter: blur(10px);
}

.nav-container {
  width: 88%;
  max-width: 1200px;
  margin: 0 auto;
  padding: var(--spacing-sm) 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: relative;
}

.logo {
  display: flex;
  align-items: center;
  text-decoration: none;
  color: var(--current-on-primary);
}

.logo img {
  height: 40px;
}

.nav-title {
  flex: 1;
  padding: 0 var(--spacing-md);
}

.nav-title h1 {
  color: var(--current-on-primary);
  font-size: var(--md-sys-typescale-title-large-size);
  line-height: var(--md-sys-typescale-title-large-line-height);
  font-weight: var(--md-sys-typescale-title-large-weight);
  margin: 0;
}

.nav-title p {
  color: var(--current-on-primary);
  font-size: var(--md-sys-typescale-body-medium-size);
  line-height: var(--md-sys-typescale-body-medium-line-height);
  margin: 0;
  opacity: 0.8;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.nav-links a {
  color: currentColor;
  text-decoration: none;
  padding: var(--spacing-sm) var(--spacing-md);
  border-radius: var(--radius-full);
  transition: all 0.2s cubic-bezier(0.4, 0.0, 0.2, 1);
  font-size: var(--md-sys-typescale-label-large-size);
  line-height: var(--md-sys-typescale-label-large-line-height);
  font-weight: var(--md-sys-typescale-label-large-weight);
  position: relative;
  overflow: hidden;
}

.nav-links a::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: currentColor;
  opacity: 0;
  transition: opacity 0.2s cubic-bezier(0.4, 0.0, 0.2, 1);
}

.nav-links a:hover::before {
  opacity: 0.1;
}

.nav-links a.active {
  background-color: color-mix(in srgb, currentColor 20%, transparent);
  font-weight: 600;
}

.hamburger {
  background: none;
  border: none;
  font-size: 1.5rem;
  cursor: pointer;
  color: currentColor;
  padding: var(--spacing-sm);
  transition: all 0.3s;
  margin-right: var(--spacing-sm);
}

.hamburger:hover {
  transform: scale(1.1);
}

.hamburger i {
  color: currentColor;
  font-size: 1.2rem;
}

/* Mobile Navigation */
@media (max-width: 768px) {
  .hamburger {
    display: block;
  }

  .theme-toggle {
    margin-right: 0;
  }

  .nav-links {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background-color: var(--current-primary-container);
    padding: var(--spacing-sm) 0;
    flex-direction: column;
  }

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

  .nav-links a {
    color: var(--current-on-primary-container);
    padding: var(--spacing-sm) var(--spacing-md);
    width: 100%;
    text-align: center;
  }

  .nav-title h1 {
    font-size: var(--md-sys-typescale-title-large-size);
    line-height: var(--md-sys-typescale-title-large-line-height);
  }

  .nav-title p {
    font-size: var(--md-sys-typescale-body-small-size);
    line-height: var(--md-sys-typescale-body-small-line-height);
  }

  .link-section {
    grid-template-columns: 1fr;
  }
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  color: var(--current-on-surface);
  margin-bottom: var(--spacing-sm);
  line-height: 1.2;
}

h1 {
  font-size: var(--md-sys-typescale-headline-large-size);
  line-height: var(--md-sys-typescale-headline-large-line-height);
  font-weight: var(--md-sys-typescale-headline-large-weight);
}

h2 {
  font-size: var(--md-sys-typescale-headline-medium-size);
  line-height: var(--md-sys-typescale-headline-medium-line-height);
  font-weight: var(--md-sys-typescale-headline-medium-weight);
}

h3 {
  font-size: var(--md-sys-typescale-headline-small-size);
  line-height: var(--md-sys-typescale-headline-small-line-height);
  font-weight: var(--md-sys-typescale-headline-small-weight);
}

p {
  margin-bottom: var(--spacing-md);
  color: var(--current-on-surface-variant);
  font-size: var(--md-sys-typescale-body-large-size);
  line-height: var(--md-sys-typescale-body-large-line-height);
  font-weight: var(--md-sys-typescale-body-large-weight);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-sm) var(--spacing-lg);
  border: none;
  border-radius: var(--radius-full);
  text-decoration: none;
  font-size: var(--md-sys-typescale-label-large-size);
  line-height: var(--md-sys-typescale-label-large-line-height);
  font-weight: var(--md-sys-typescale-label-large-weight);
  cursor: pointer;
  transition: all 0.2s cubic-bezier(0.4, 0.0, 0.2, 1);
  text-align: center;
  min-height: 40px;
  position: relative;
  overflow: hidden;
}

.btn::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0;
  height: 0;
  background: currentColor;
  border-radius: 50%;
  transform: translate(-50%, -50%);
  transition: width 0.3s, height 0.3s;
  opacity: 0.1;
}

.btn:hover::before {
  width: 200px;
  height: 200px;
}

.btn-primary {
  background-color: var(--current-primary);
  color: var(--current-on-primary);
  box-shadow: var(--md-sys-elevation-1);
}

.btn-primary:hover {
  background-color: var(--current-primary-container);
  color: var(--current-on-primary-container);
  box-shadow: var(--md-sys-elevation-2);
}

.btn-secondary {
  background-color: var(--current-surface);
  color: var(--current-primary);
  border: 1px solid var(--current-outline);
  box-shadow: var(--md-sys-elevation-1);
}

.btn-secondary:hover {
  border-color: var(--current-primary);
  background-color: var(--current-primary-container);
  color: var(--current-on-primary-container);
  box-shadow: var(--md-sys-elevation-2);
}

.btn-text {
  background-color: transparent;
  color: var(--current-primary);
  padding: var(--spacing-sm) var(--spacing-md);
}

.btn-text:hover {
  background-color: color-mix(in srgb, var(--current-primary) 8%, transparent);
}

/* Forms */
.form-group {
  margin-bottom: var(--spacing-lg);
  position: relative;
}

.form-group label {
  display: block;
  margin-bottom: var(--spacing-xs);
  color: var(--current-on-surface);
  font-weight: var(--md-sys-typescale-title-medium-weight);
  font-size: var(--md-sys-typescale-title-medium-size);
  line-height: var(--md-sys-typescale-title-medium-line-height);
  transition: color 0.2s cubic-bezier(0.4, 0.0, 0.2, 1);
}

.form-group:focus-within label {
  color: var(--current-primary);
}

input[type="text"],
input[type="email"],
input[type="tel"],
input[type="number"],
input[type="password"],
input[type="search"],
input[type="url"],
textarea,
select {
  width: 100%;
  padding: var(--spacing-md);
  border: 1px solid var(--current-outline);
  border-radius: var(--radius-lg);
  font-family: var(--font-family);
  font-size: var(--md-sys-typescale-body-large-size);
  color: var(--current-on-surface);
  background-color: var(--current-surface);
  transition: all 0.2s cubic-bezier(0.4, 0.0, 0.2, 1);
  box-shadow: var(--md-sys-elevation-1);
}

input:focus,
textarea:focus,
select:focus {
  outline: none;
  border-color: var(--current-primary);
  box-shadow: var(--md-sys-elevation-2), 0 0 0 2px color-mix(in srgb, var(--current-primary) 20%, transparent);
  background-color: var(--current-surface);
}

textarea {
  min-height: 120px;
  resize: vertical;
}

/* Footer */
footer {
  background-color: var(--current-surface);
  padding: var(--spacing-lg);
  text-align: center;
  color: var(--current-on-surface-variant);
  flex-shrink: 0;
  width: 100%;
  margin-top: auto;
  border-top: 1px solid var(--current-outline-variant);
  font-size: var(--md-sys-typescale-body-medium-size);
  line-height: var(--md-sys-typescale-body-medium-line-height);
  box-shadow: var(--md-sys-elevation-1);
}

/* Link Styles */
.link-section {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: var(--spacing-lg);
}

.link-item {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}

.link-button {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--spacing-md) var(--spacing-lg);
  background-color: var(--current-surface);
  color: var(--current-primary);
  text-decoration: none;
  border: 1px solid var(--current-outline);
  border-radius: var(--radius-lg);
  font-weight: var(--md-sys-typescale-title-medium-weight);
  font-size: var(--md-sys-typescale-title-medium-size);
  line-height: var(--md-sys-typescale-title-medium-line-height);
  transition: all 0.2s cubic-bezier(0.4, 0.0, 0.2, 1);
  box-shadow: var(--md-sys-elevation-1);
  position: relative;
  overflow: hidden;
}

.link-button::after {
  content: '→';
  font-size: 1.2em;
  transition: transform 0.2s cubic-bezier(0.4, 0.0, 0.2, 1);
  opacity: 0.7;
}

.link-button:hover {
  border-color: var(--current-primary);
  background-color: var(--current-primary-container);
  color: var(--current-on-primary-container);
  box-shadow: var(--md-sys-elevation-2);
  transform: translateY(-1px);
}

.link-button:hover::after {
  transform: translateX(4px);
  opacity: 1;
}

.link-description {
  color: var(--current-on-surface-variant);
  font-size: var(--md-sys-typescale-body-medium-size);
  line-height: var(--md-sys-typescale-body-medium-line-height);
  margin: 0;
  padding-left: var(--spacing-sm);
}

/* Theme Toggle Button */
.theme-toggle {
  background: var(--current-surface);
  border: 1px solid var(--current-outline);
  color: var(--current-on-surface);
  padding: var(--spacing-sm);
  border-radius: var(--radius-full);
  cursor: pointer;
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--md-sys-elevation-1);
  z-index: 1000;
  transition: all 0.3s cubic-bezier(0.4, 0.0, 0.2, 1);
  margin-right: var(--spacing-sm);
  position: relative;
  overflow: hidden;
}

.theme-toggle::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0;
  height: 0;
  background: var(--current-primary);
  border-radius: 50%;
  transform: translate(-50%, -50%);
  transition: width 0.3s cubic-bezier(0.4, 0.0, 0.2, 1),
              height 0.3s cubic-bezier(0.4, 0.0, 0.2, 1);
  opacity: 0.1;
}

.theme-toggle:hover {
  transform: scale(1.1);
  box-shadow: var(--md-sys-elevation-2);
  background-color: var(--current-primary-container);
  color: var(--current-on-primary-container);
}

.theme-toggle:hover::before {
  width: 200px;
  height: 200px;
}

.theme-toggle:active {
  transform: scale(0.95);
}

.theme-toggle i {
  color: currentColor;
  font-size: 1.2rem;
  transition: transform 0.3s cubic-bezier(0.4, 0.0, 0.2, 1);
  z-index: 1;
}

.theme-toggle:hover i {
  transform: rotate(180deg);
}

/* Theme-specific enhancements */
.theme-light {
  --theme-transition-duration: 0.3s;
}

.theme-dark {
  --theme-transition-duration: 0.3s;
}

/* Enhanced focus states for theme toggle */
.theme-toggle:focus {
  outline: none;
  box-shadow: var(--md-sys-elevation-2), 0 0 0 2px color-mix(in srgb, var(--current-primary) 20%, transparent);
}

.theme-toggle:focus-visible {
  outline: 2px solid var(--current-primary);
  outline-offset: 2px;
}

/* Accessibility improvements */
@media (prefers-reduced-motion: reduce) {
  .theme-transition * {
    transition: none !important;
  }
  
  .theme-toggle i {
    transition: none !important;
  }
  
  .theme-changing {
    animation: none !important;
  }
}

/* High contrast mode support */
@media (prefers-contrast: high) {
  .theme-toggle {
    border-width: 2px;
  }
  
  .theme-toggle:focus {
    outline-width: 3px;
  }
}

/* Botpress Chat Window Positioning */
#bp-web-widget-container {
  margin-top: 80px !important;
  z-index: 999;
}

/* Material 3 Enhanced Theme Transitions */
.theme-transition * {
  transition: background-color 0.3s cubic-bezier(0.4, 0.0, 0.2, 1),
              color 0.3s cubic-bezier(0.4, 0.0, 0.2, 1),
              border-color 0.3s cubic-bezier(0.4, 0.0, 0.2, 1),
              box-shadow 0.3s cubic-bezier(0.4, 0.0, 0.2, 1);
}

.theme-changing {
  animation: themeChangePulse 0.3s cubic-bezier(0.4, 0.0, 0.2, 1);
}

@keyframes themeChangePulse {
  0% {
    opacity: 1;
  }
  50% {
    opacity: 0.95;
  }
  100% {
    opacity: 1;
  }
}

/* Material 3 Responsive Design & Accessibility Enhancements */

/* Enhanced Responsive Breakpoints */
@media (max-width: 1200px) {
  .container {
    width: 92%;
  }
  
  .nav-container {
    width: 92%;
  }
}

@media (max-width: 1024px) {
  .container {
    width: 95%;
    padding: var(--spacing-md) 0;
  }
  
  .nav-container {
    width: 95%;
  }
  
  .link-section {
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-md);
  }
}

@media (max-width: 768px) {
  .container {
    width: 98%;
    padding: var(--spacing-sm) 0;
  }
  
  .nav-container {
    width: 98%;
    padding: var(--spacing-xs) 0;
  }
  
  .nav-title h1 {
    font-size: var(--md-sys-typescale-title-medium-size);
    line-height: var(--md-sys-typescale-title-medium-line-height);
  }
  
  .nav-title p {
    font-size: var(--md-sys-typescale-body-small-size);
    line-height: var(--md-sys-typescale-body-small-line-height);
  }
  
  .card {
    padding: var(--spacing-md);
    margin-bottom: var(--spacing-md);
    border-radius: var(--radius-lg);
  }
  
  .card h2 {
    font-size: var(--md-sys-typescale-title-large-size);
    line-height: var(--md-sys-typescale-title-large-line-height);
  }
  
  .link-section {
    grid-template-columns: 1fr;
    gap: var(--spacing-md);
  }
  
  .link-button {
    padding: var(--spacing-sm) var(--spacing-md);
    font-size: var(--md-sys-typescale-label-large-size);
    line-height: var(--md-sys-typescale-label-large-line-height);
  }
  
  .btn {
    padding: var(--spacing-sm) var(--spacing-md);
    font-size: var(--md-sys-typescale-label-large-size);
    line-height: var(--md-sys-typescale-label-large-line-height);
    min-height: 36px;
  }
  
  .theme-toggle {
    width: 36px;
    height: 36px;
  }
  
  .theme-toggle i {
    font-size: 1rem;
  }
  
  .hamburger {
    font-size: 1.25rem;
    padding: var(--spacing-xs);
  }
}

@media (max-width: 480px) {
  .container {
    width: 100%;
    padding: var(--spacing-sm);
  }
  
  .nav-container {
    width: 100%;
    padding: var(--spacing-xs) var(--spacing-sm);
  }
  
  .nav-title h1 {
    font-size: var(--md-sys-typescale-title-small-size);
    line-height: var(--md-sys-typescale-title-small-line-height);
  }
  
  .nav-title p {
    font-size: var(--md-sys-typescale-label-medium-size);
    line-height: var(--md-sys-typescale-label-medium-line-height);
  }
  
  .card {
    padding: var(--spacing-sm);
    border-radius: var(--radius-md);
  }
  
  .link-button {
    padding: var(--spacing-sm);
    font-size: var(--md-sys-typescale-label-medium-size);
    line-height: var(--md-sys-typescale-label-medium-line-height);
  }
  
  .btn {
    width: 100%;
    justify-content: center;
  }
  
  .theme-toggle {
    width: 32px;
    height: 32px;
    margin-right: var(--spacing-xs);
  }
  
  .theme-toggle i {
    font-size: 0.9rem;
  }
}

/* Enhanced Mobile Navigation */
@media (max-width: 768px) {
  .hamburger {
    display: block;
  }

  .nav-links {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background-color: var(--current-primary-container);
    padding: var(--spacing-sm) 0;
    flex-direction: column;
    box-shadow: var(--md-sys-elevation-3);
    border-top: 1px solid var(--current-outline-variant);
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s cubic-bezier(0.4, 0.0, 0.2, 1);
  }

  .nav-links.active {
    display: flex;
    max-height: 300px;
  }

  .nav-links a {
    color: var(--current-on-primary-container);
    padding: var(--spacing-md) var(--spacing-lg);
    width: 100%;
    text-align: left;
    border-radius: 0;
    border-bottom: 1px solid var(--current-outline-variant);
  }

  .nav-links a:last-child {
    border-bottom: none;
  }

  .nav-links a:hover {
    background-color: color-mix(in srgb, var(--current-on-primary-container) 10%, transparent);
  }
}

/* Accessibility Enhancements */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* Focus Management */
*:focus {
  outline: 2px solid var(--current-primary);
  outline-offset: 2px;
}

*:focus:not(:focus-visible) {
  outline: none;
}

*:focus-visible {
  outline: 2px solid var(--current-primary);
  outline-offset: 2px;
}

/* Skip Link */
.skip-link {
  position: absolute;
  top: -40px;
  left: 6px;
  background: var(--current-primary);
  color: var(--current-on-primary);
  padding: 8px;
  text-decoration: none;
  border-radius: var(--radius-sm);
  z-index: 10000;
  transition: top 0.3s;
}

.skip-link:focus {
  top: 6px;
}

/* Enhanced Button Accessibility */
.btn:focus-visible,
.link-button:focus-visible,
.theme-toggle:focus-visible {
  outline: 2px solid var(--current-primary);
  outline-offset: 2px;
  box-shadow: var(--md-sys-elevation-2), 0 0 0 4px color-mix(in srgb, var(--current-primary) 20%, transparent);
}

/* Form Accessibility */
input:focus-visible,
textarea:focus-visible,
select:focus-visible {
  outline: 2px solid var(--current-primary);
  outline-offset: 2px;
  box-shadow: var(--md-sys-elevation-2), 0 0 0 4px color-mix(in srgb, var(--current-primary) 20%, transparent);
}

/* High Contrast Mode Support */
@media (prefers-contrast: high) {
  .card {
    border-width: 2px;
  }
  
  .btn,
  .link-button {
    border-width: 2px;
  }
  
  .nav-links a {
    border-width: 1px;
  }
  
  .theme-toggle {
    border-width: 2px;
  }
  
  *:focus-visible {
    outline-width: 3px;
  }
}

/* Reduced Motion Support */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  
  .theme-transition * {
    transition: none !important;
  }
  
  .card:hover {
    transform: none;
  }
  
  .link-button:hover {
    transform: none;
  }
  
  .theme-toggle:hover {
    transform: none;
  }
  
  .theme-toggle:hover i {
    transform: none;
  }
}

/* Print Styles */
@media print {
  .topnav,
  .theme-toggle,
  .hamburger,
  footer {
    display: none !important;
  }
  
  .container {
    width: 100% !important;
    padding: 0 !important;
  }
  
  .card {
    box-shadow: none !important;
    border: 1px solid #000 !important;
    break-inside: avoid;
  }
  
  .link-button {
    border: 1px solid #000 !important;
    color: #000 !important;
  }
  
  * {
    color: #000 !important;
    background: #fff !important;
  }
}

/* Performance Optimizations */
.card,
.btn,
.link-button,
.theme-toggle {
  will-change: transform, box-shadow;
}

/* Layout Stability */
img {
  max-width: 100%;
  height: auto;
  aspect-ratio: attr(width) / attr(height);
}

/* Container Query Support (Future-proofing) */
@container (min-width: 400px) {
  .link-section {
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  }
}

/* Dark Mode Print */
@media print and (prefers-color-scheme: dark) {
  * {
    color: #fff !important;
    background: #000 !important;
  }
  
  .card {
    border-color: #fff !important;
  }
}

/* Touch Device Optimizations */
@media (hover: none) and (pointer: coarse) {
  .btn,
  .link-button,
  .theme-toggle {
    min-height: 44px;
    min-width: 44px;
  }
  
  .nav-links a {
    min-height: 44px;
    padding: var(--spacing-md) var(--spacing-lg);
  }
  
  .card:hover {
    transform: none;
  }
  
  .link-button:hover {
    transform: none;
  }
}

/* Landscape Mobile */
@media (max-width: 768px) and (orientation: landscape) {
  .nav-links {
    max-height: 200px;
    overflow-y: auto;
  }
  
  .nav-links a {
    padding: var(--spacing-sm) var(--spacing-md);
  }
}

/* Material 3 Testing & Optimization Styles */

/* Force focus visibility for testing */
.force-focus-visible {
  outline: 2px solid var(--current-primary) !important;
  outline-offset: 2px !important;
}

/* Browser-specific styles */
[data-browser="safari"] .topnav {
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
}

[data-browser="firefox"] *:focus-visible {
  outline: var(--focus-outline, 2px solid var(--current-primary));
}

/* Device capability styles */
[data-low-power="true"] * {
  animation-duration: 0.1s !important;
  transition-duration: 0.1s !important;
}

[data-touch-device="true"] .btn,
[data-touch-device="true"] .link-button,
[data-touch-device="true"] .theme-toggle {
  min-height: 44px;
  min-width: 44px;
}

/* Performance optimization styles */
.card,
.btn,
.link-button,
.theme-toggle {
  will-change: transform, box-shadow;
  contain: layout style paint;
}

/* Loading states */
.loading {
  opacity: 0.7;
  pointer-events: none;
}

.loading::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 20px;
  height: 20px;
  margin: -10px 0 0 -10px;
  border: 2px solid var(--current-primary);
  border-top-color: transparent;
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

/* Error states */
.error {
  border-color: var(--current-error) !important;
  background-color: var(--current-error-container) !important;
  color: var(--current-on-error-container) !important;
}

/* Success states */
.success {
  border-color: #10B981 !important;
  background-color: #D1FAE5 !important;
  color: #065F46 !important;
}

/* Debug mode styles (only in development) */
.debug-mode {
  outline: 1px solid red;
}

.debug-mode::before {
  content: attr(data-debug);
  position: absolute;
  top: -20px;
  left: 0;
  background: red;
  color: white;
  font-size: 10px;
  padding: 2px 4px;
  z-index: 10000;
}

/* Print optimization */
@media print {
  .theme-toggle,
  .hamburger,
  .nav-links {
    display: none !important;
  }
  
  .card {
    break-inside: avoid;
    page-break-inside: avoid;
  }
  
  .link-button {
    border: 1px solid #000 !important;
    color: #000 !important;
    text-decoration: none !important;
  }
  
  * {
    color: #000 !important;
    background: #fff !important;
    box-shadow: none !important;
  }
}

/* High contrast mode enhancements */
@media (prefers-contrast: high) {
  .card {
    border-width: 3px;
  }
  
  .btn,
  .link-button {
    border-width: 3px;
  }
  
  .theme-toggle {
    border-width: 3px;
  }
  
  *:focus-visible {
    outline-width: 4px;
  }
}

/* Reduced motion enhancements */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
  
  .card:hover,
  .link-button:hover,
  .theme-toggle:hover {
    transform: none !important;
  }
  
  .theme-toggle:hover i {
    transform: none !important;
  }
}

/* Focus management improvements */
*:focus {
  outline: 2px solid var(--current-primary);
  outline-offset: 2px;
}

*:focus:not(:focus-visible) {
  outline: none;
}

*:focus-visible {
  outline: 2px solid var(--current-primary);
  outline-offset: 2px;
}

/* Skip link positioning */
.skip-link {
  position: absolute;
  top: -40px;
  left: 6px;
  background: var(--current-primary);
  color: var(--current-on-primary);
  padding: 8px 16px;
  text-decoration: none;
  border-radius: var(--radius-sm);
  z-index: 10000;
  transition: top 0.3s cubic-bezier(0.4, 0.0, 0.2, 1);
  font-weight: var(--md-sys-typescale-label-large-weight);
  font-size: var(--md-sys-typescale-label-large-size);
}

.skip-link:focus {
  top: 6px;
}

/* Enhanced accessibility for interactive elements */
.btn:focus-visible,
.link-button:focus-visible,
.theme-toggle:focus-visible,
.hamburger:focus-visible {
  outline: 2px solid var(--current-primary);
  outline-offset: 2px;
  box-shadow: var(--md-sys-elevation-2), 0 0 0 4px color-mix(in srgb, var(--current-primary) 20%, transparent);
}

/* Form accessibility improvements */
input:focus-visible,
textarea:focus-visible,
select:focus-visible {
  outline: 2px solid var(--current-primary);
  outline-offset: 2px;
  box-shadow: var(--md-sys-elevation-2), 0 0 0 4px color-mix(in srgb, var(--current-primary) 20%, transparent);
}

/* Mobile navigation improvements */
@media (max-width: 768px) {
  .nav-links {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s cubic-bezier(0.4, 0.0, 0.2, 1);
  }
  
  .nav-links.active {
    max-height: 300px;
  }
  
  .nav-links a {
    min-height: 44px;
    display: flex;
    align-items: center;
    padding: var(--spacing-md) var(--spacing-lg);
  }
}

/* Landscape mobile optimizations */
@media (max-width: 768px) and (orientation: landscape) {
  .nav-links {
    max-height: 200px;
    overflow-y: auto;
  }
  
  .nav-links a {
    padding: var(--spacing-sm) var(--spacing-md);
  }
}

/* Touch device optimizations */
@media (hover: none) and (pointer: coarse) {
  .btn,
  .link-button,
  .theme-toggle,
  .hamburger {
    min-height: 44px;
    min-width: 44px;
  }
  
  .nav-links a {
    min-height: 44px;
    padding: var(--spacing-md) var(--spacing-lg);
  }
  
  /* Disable hover effects on touch devices */
  .card:hover,
  .link-button:hover,
  .theme-toggle:hover {
    transform: none;
  }
}

/* Performance monitoring styles */
.performance-warning {
  position: fixed;
  top: 10px;
  right: 10px;
  background: var(--current-error-container);
  color: var(--current-on-error-container);
  padding: var(--spacing-sm) var(--spacing-md);
  border-radius: var(--radius-sm);
  font-size: var(--md-sys-typescale-body-small-size);
  z-index: 10000;
  box-shadow: var(--md-sys-elevation-3);
}

/* Accessibility testing indicators */
.accessibility-issue {
  outline: 2px dashed red !important;
  position: relative;
}

.accessibility-issue::after {
  content: '⚠️ Accessibility Issue';
  position: absolute;
  top: -25px;
  left: 0;
  background: red;
  color: white;
  font-size: 10px;
  padding: 2px 4px;
  border-radius: 2px;
  z-index: 10000;
}

/* Chatbot Styles */
.chatbot-container {
  position: fixed;
  bottom: 20px;
  right: 20px;
  z-index: 1000;
  font-family: var(--md-sys-typescale-body-medium-font-family-name);
}

.chatbot-toggle {
  width: 60px;
  height: 60px;
  border-radius: 50%;
  background: var(--current-primary);
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--md-sys-elevation-3);
  transition: all 0.3s cubic-bezier(0.4, 0.0, 0.2, 1);
  position: relative;
  overflow: hidden;
}

.chatbot-toggle::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(135deg, var(--current-primary), color-mix(in srgb, var(--current-primary) 80%, white));
  border-radius: 50%;
  opacity: 0;
  transition: opacity 0.3s cubic-bezier(0.4, 0.0, 0.2, 1);
}

.chatbot-toggle:hover {
  transform: scale(1.05);
  box-shadow: var(--md-sys-elevation-4);
}

.chatbot-toggle:hover::before {
  opacity: 1;
}

.chatbot-icon {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 50%;
  position: relative;
  z-index: 1;
}

.chatbot-window {
  position: relative;
  bottom: 90px;
  right: 20px;
  width: 350px;
  height: 500px;
  background: var(--current-surface);
  border-radius: var(--radius-lg);
  box-shadow: var(--md-sys-elevation-8);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  border: 1px solid var(--current-outline);
}

.chatbot-header {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  z-index: 2;
  background: var(--current-primary);
  color: var(--current-on-primary);
  padding: var(--spacing-md) var(--spacing-lg);
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 1px solid var(--current-outline);
}

.chatbot-header h3 {
  margin: 0;
  font-size: var(--md-sys-typescale-title-medium-size);
  font-weight: var(--md-sys-typescale-title-medium-weight);
  line-height: var(--md-sys-typescale-title-medium-line-height);
}

.chatbot-close {
  background: none;
  border: none;
  color: var(--current-on-primary);
  font-size: 24px;
  cursor: pointer;
  padding: 4px;
  border-radius: var(--radius-sm);
  transition: background-color 0.2s cubic-bezier(0.4, 0.0, 0.2, 1);
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
}

.chatbot-close:hover {
  background: color-mix(in srgb, var(--current-on-primary) 10%, transparent);
}

.chatbot-messages {
  position: absolute;
  top: 60px; /* Height of the header */
  bottom: 70px; /* Height of the input container */
  left: 0;
  right: 0;
  overflow-y: auto;
  padding: var(--spacing-md);
  min-height: 0;
}

.message {
  display: flex;
  margin-bottom: var(--spacing-sm);
  animation: messageSlideIn 0.3s cubic-bezier(0.4, 0.0, 0.2, 1);
}

@keyframes messageSlideIn {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.bot-message {
  justify-content: flex-start;
}

.user-message {
  justify-content: flex-end;
}

.message-content {
  max-width: 80%;
  padding: var(--spacing-sm) var(--spacing-md);
  border-radius: var(--radius-lg);
  font-size: var(--md-sys-typescale-body-medium-size);
  line-height: var(--md-sys-typescale-body-medium-line-height);
  word-wrap: break-word;
  white-space: pre-wrap;
}

.bot-message .message-content {
  background: var(--current-surface-variant);
  color: var(--current-on-surface-variant);
  border-bottom-left-radius: var(--radius-sm);
}

.user-message .message-content {
  background: var(--current-primary);
  color: var(--current-on-primary);
  border-bottom-right-radius: var(--radius-sm);
}

.chatbot-input-container {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 2;
  padding: var(--spacing-md);
  border-top: 1px solid var(--current-outline);
  display: flex;
  gap: var(--spacing-sm);
  background: var(--current-surface);
}

.chatbot-input {
  flex: 1;
  padding: var(--spacing-sm) var(--spacing-md);
  border: 1px solid var(--current-outline);
  border-radius: var(--radius-lg);
  background: var(--current-surface);
  color: var(--current-on-surface);
  font-size: var(--md-sys-typescale-body-medium-size);
  font-family: inherit;
  resize: none;
  outline: none;
  transition: border-color 0.2s cubic-bezier(0.4, 0.0, 0.2, 1);
}

.chatbot-input:focus {
  border-color: var(--current-primary);
  box-shadow: 0 0 0 2px color-mix(in srgb, var(--current-primary) 20%, transparent);
}

.chatbot-send {
  background: var(--current-primary);
  color: var(--current-on-primary);
  border: none;
  border-radius: 50%;
  width: 40px;
  height: 40px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s cubic-bezier(0.4, 0.0, 0.2, 1);
  position: relative;
  overflow: hidden;
}

.chatbot-send::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: color-mix(in srgb, var(--current-on-primary) 10%, transparent);
  border-radius: 50%;
  opacity: 0;
  transition: opacity 0.2s cubic-bezier(0.4, 0.0, 0.2, 1);
}

.chatbot-send:hover {
  transform: scale(1.05);
}

.chatbot-send:hover::before {
  opacity: 1;
}

.chatbot-send i {
  font-size: 14px;
  position: relative;
  z-index: 1;
}

.chatbot-loading {
  padding: var(--spacing-md);
  display: flex;
  justify-content: center;
  align-items: center;
  background: var(--current-surface);
  border-top: 1px solid var(--current-outline);
}

.loading-dots {
  display: flex;
  gap: 4px;
}

.loading-dots span {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--current-primary);
  animation: loadingDot 1.4s infinite ease-in-out;
}

.loading-dots span:nth-child(1) {
  animation-delay: -0.32s;
}

.loading-dots span:nth-child(2) {
  animation-delay: -0.16s;
}

@keyframes loadingDot {
  0%, 80%, 100% {
    transform: scale(0.8);
    opacity: 0.5;
  }
  40% {
    transform: scale(1);
    opacity: 1;
  }
}

/* Chatbot responsive design */
@media (max-width: 768px) {
  .chatbot-window {
    width: calc(100vw - 40px);
    height: calc(100vh - 120px);
    bottom: 80px;
    right: 20px;
    left: 20px;
  }
  
  .chatbot-toggle {
    width: 56px;
    height: 56px;
  }
  
  .chatbot-icon {
    width: 28px;
    height: 28px;
  }
}

@media (max-width: 480px) {
  .chatbot-container {
    bottom: 16px;
    right: 16px;
  }
  
  .chatbot-window {
    bottom: 72px;
    right: 16px;
    left: 16px;
    width: calc(100vw - 32px);
  }
  
  .message-content {
    max-width: 90%;
    font-size: var(--md-sys-typescale-body-small-size);
  }
}

/* Chatbot accessibility */
.chatbot-toggle:focus-visible,
.chatbot-close:focus-visible,
.chatbot-send:focus-visible {
  outline: 2px solid var(--current-primary);
  outline-offset: 2px;
  box-shadow: 0 0 0 4px color-mix(in srgb, var(--current-primary) 20%, transparent);
}

.chatbot-input:focus-visible {
  outline: 2px solid var(--current-primary);
  outline-offset: 2px;
}

/* Chatbot dark mode adjustments */
[data-theme="dark"] .chatbot-window {
  border-color: var(--current-outline);
}

[data-theme="dark"] .bot-message .message-content {
  background: var(--current-surface-variant);
  color: var(--current-on-surface-variant);
}

/* Chatbot print styles */
@media print {
  .chatbot-container {
    display: none !important;
  }
}

/* Chatbot reduced motion */
@media (prefers-reduced-motion: reduce) {
  .chatbot-toggle,
  .chatbot-close,
  .chatbot-send,
  .message {
    animation: none;
    transition: none;
  }
  
  .loading-dots span {
    animation: none;
  }
}

/* Chatbot high contrast */
@media (prefers-contrast: high) {
  .chatbot-window {
    border-width: 2px;
  }
  
  .chatbot-toggle,
  .chatbot-send {
    border: 2px solid var(--current-on-primary);
  }
  
  .chatbot-input {
    border-width: 2px;
  }
}

/* Chatbot touch device optimizations */
@media (hover: none) and (pointer: coarse) {
  .chatbot-toggle,
  .chatbot-close,
  .chatbot-send {
    min-width: 44px;
    min-height: 44px;
  }
  
  .chatbot-input {
    min-height: 44px;
  }
  
  .chatbot-toggle:hover,
  .chatbot-close:hover,
  .chatbot-send:hover {
    transform: none;
  }
}

/* Hero section styles */
.hero-section {
  background: linear-gradient(135deg, var(--current-primary-container), color-mix(in srgb, var(--current-primary-container) 80%, var(--current-surface)));
  padding: var(--spacing-xxl) var(--spacing-lg);
  border-radius: var(--radius-lg);
  margin-bottom: var(--spacing-xl);
  text-align: center;
  position: relative;
  overflow: hidden;
}

.hero-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grain" width="100" height="100" patternUnits="userSpaceOnUse"><circle cx="25" cy="25" r="1" fill="%23ffffff" opacity="0.1"/><circle cx="75" cy="75" r="1" fill="%23ffffff" opacity="0.1"/><circle cx="50" cy="10" r="0.5" fill="%23ffffff" opacity="0.1"/><circle cx="10" cy="60" r="0.5" fill="%23ffffff" opacity="0.1"/><circle cx="90" cy="40" r="0.5" fill="%23ffffff" opacity="0.1"/></pattern></defs><rect width="100" height="100" fill="url(%23grain)"/></svg>');
  opacity: 0.3;
}

.hero-content {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--spacing-md);
  padding-bottom: var(--spacing-lg);
}

.hero-content h2 {
  color: var(--current-on-primary-container);
  font-size: var(--md-sys-typescale-headline-large-size);
  font-weight: var(--md-sys-typescale-headline-large-weight);
  line-height: var(--md-sys-typescale-headline-large-line-height);
  margin: 0;
  opacity: 0.9;
}

.hero-content p {
  color: var(--current-on-primary-container);
  font-size: var(--md-sys-typescale-title-medium-size);
  font-weight: var(--md-sys-typescale-title-medium-weight);
  margin: 0;
  opacity: 0.9;
}

.hero-buttons {
  display: flex;
  gap: var(--spacing-md);
  justify-content: center;
  flex-wrap: wrap;
}

/* Features section styles */
.features-section {
  margin-bottom: var(--spacing-xl);
}

.features-section h2 {
  text-align: center;
  margin-bottom: var(--spacing-xl);
  color: var(--current-on-surface);
  font-size: var(--md-sys-typescale-headline-medium-size);
  font-weight: var(--md-sys-typescale-headline-medium-weight);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-lg);
}

.feature-card {
  background: var(--current-surface);
  padding: var(--spacing-xl);
  border-radius: var(--radius-lg);
  text-align: center;
  border: 1px solid var(--current-outline);
  transition: all 0.3s cubic-bezier(0.4, 0.0, 0.2, 1);
  position: relative;
  overflow: hidden;
}

.feature-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(135deg, var(--current-primary) 0%, transparent 100%);
  opacity: 0;
  transition: opacity 0.3s cubic-bezier(0.4, 0.0, 0.2, 1);
}

.feature-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--md-sys-elevation-4);
}

.feature-card:hover::before {
  opacity: 0.05;
}

.feature-card i {
  font-size: 48px;
  color: var(--current-primary);
  margin-bottom: var(--spacing-md);
  position: relative;
  z-index: 1;
}

.feature-card h3 {
  color: var(--current-on-surface);
  font-size: var(--md-sys-typescale-title-large-size);
  font-weight: var(--md-sys-typescale-title-large-weight);
  margin-bottom: var(--spacing-sm);
  position: relative;
  z-index: 1;
}

.feature-card p {
  color: var(--current-on-surface-variant);
  font-size: var(--md-sys-typescale-body-medium-size);
  line-height: var(--md-sys-typescale-body-medium-line-height);
  position: relative;
  z-index: 1;
}

/* Features responsive design */
@media (max-width: 768px) {
  .hero-section {
    padding: var(--spacing-xl) var(--spacing-md);
  }
  
  .hero-content h2 {
    font-size: var(--md-sys-typescale-headline-medium-size);
  }
  
  .hero-content p {
    font-size: var(--md-sys-typescale-title-small-size);
  }
  
  .hero-buttons {
    flex-direction: column;
    align-items: center;
  }
  
  .features-grid {
    grid-template-columns: 1fr;
    gap: var(--spacing-md);
  }
  
  .feature-card {
    padding: var(--spacing-lg);
  }
  
  .feature-card i {
    font-size: 36px;
  }
}

@media (max-width: 480px) {
  .hero-section {
    padding: var(--spacing-lg) var(--spacing-sm);
  }
  
  .hero-content h2 {
    font-size: var(--md-sys-typescale-headline-small-size);
  }
  
  .feature-card {
    padding: var(--spacing-md);
  }
}

/* Contact info styles */
.contact-info {
  display: grid;
  gap: var(--spacing-lg);
  margin-top: var(--spacing-lg);
}

.contact-item {
  display: flex;
  align-items: flex-start;
  gap: var(--spacing-md);
  padding: var(--spacing-md);
  background: var(--current-surface-variant);
  border-radius: var(--radius-md);
  border: 1px solid var(--current-outline);
}

.contact-item i {
  font-size: 24px;
  color: var(--current-primary);
  margin-top: 4px;
  flex-shrink: 0;
}

.contact-item h3 {
  margin: 0 0 var(--spacing-sm) 0;
  color: var(--current-on-surface);
  font-size: var(--md-sys-typescale-title-medium-size);
  font-weight: var(--md-sys-typescale-title-medium-weight);
}

.contact-item p {
  margin: 0;
  color: var(--current-on-surface-variant);
  font-size: var(--md-sys-typescale-body-medium-size);
  line-height: var(--md-sys-typescale-body-medium-line-height);
}

/* Contact form styles */
.contact-form {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
  margin-top: var(--spacing-lg);
}

.contact-form .form-group {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}

.contact-form label {
  color: var(--current-on-surface);
  font-size: var(--md-sys-typescale-label-medium-size);
  font-weight: var(--md-sys-typescale-label-medium-weight);
}

.contact-form input,
.contact-form textarea {
  padding: var(--spacing-sm) var(--spacing-md);
  border: 1px solid var(--current-outline);
  border-radius: var(--radius-md);
  background: var(--current-surface);
  color: var(--current-on-surface);
  font-size: var(--md-sys-typescale-body-medium-size);
  font-family: inherit;
  transition: border-color 0.2s cubic-bezier(0.4, 0.0, 0.2, 1);
}

.contact-form input:focus,
.contact-form textarea:focus {
  outline: none;
  border-color: var(--current-primary);
  box-shadow: 0 0 0 2px color-mix(in srgb, var(--current-primary) 20%, transparent);
}

.contact-form textarea {
  resize: vertical;
  min-height: 120px;
}

.contact-form .btn {
  align-self: flex-start;
  margin-top: var(--spacing-sm);
}

/* Contact responsive design */
@media (max-width: 768px) {
  .contact-info {
    grid-template-columns: 1fr;
    gap: var(--spacing-md);
  }
  
  .contact-item {
    padding: var(--spacing-sm);
  }
  
  .contact-item i {
    font-size: 20px;
  }
}

@media (max-width: 480px) {
  .contact-item {
    flex-direction: column;
    text-align: center;
    gap: var(--spacing-sm);
  }
  .contact-item i {
    margin-top: 0;
  }
}

/* Counter form styles */
.counter-form {
  display: grid;
  gap: var(--spacing-md);
  margin: var(--spacing-lg) 0;
}

.denomination-group {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: var(--spacing-md);
  align-items: center;
  padding: var(--spacing-sm);
  background: var(--current-surface-variant);
  border-radius: var(--radius-md);
  border: 1px solid var(--current-outline);
}

.denomination-group label {
  color: var(--current-on-surface);
  font-size: var(--md-sys-typescale-label-medium-size);
  font-weight: var(--md-sys-typescale-label-medium-weight);
}

.denomination-group input {
  width: 100px;
  padding: var(--spacing-sm);
  border: 1px solid var(--current-outline);
  border-radius: var(--radius-sm);
  background: var(--current-surface);
  color: var(--current-on-surface);
  font-size: var(--md-sys-typescale-body-medium-size);
  text-align: center;
}

.denomination-group input:focus {
  outline: none;
  border-color: var(--current-primary);
  box-shadow: 0 0 0 2px color-mix(in srgb, var(--current-primary) 20%, transparent);
}

.denomination-total {
  color: var(--current-primary);
  font-weight: var(--md-sys-typescale-title-medium-weight);
  font-size: var(--md-sys-typescale-title-medium-size);
  text-align: right;
  min-width: 80px;
}

.total-section {
  margin-top: var(--spacing-xl);
  padding: var(--spacing-lg);
  background: var(--current-primary-container);
  border-radius: var(--radius-lg);
  text-align: center;
  border: 1px solid var(--current-outline);
}

.total-section h3 {
  color: var(--current-on-primary-container);
  font-size: var(--md-sys-typescale-headline-medium-size);
  font-weight: var(--md-sys-typescale-headline-medium-weight);
  margin-bottom: var(--spacing-md);
}

#grand-total {
  color: var(--current-primary);
  font-weight: var(--md-sys-typescale-headline-large-weight);
}

/* Thanks page styles */
.thanks-actions {
  display: flex;
  gap: var(--spacing-md);
  justify-content: center;
  margin-top: var(--spacing-xl);
  flex-wrap: wrap;
}

/* Counter responsive design */
@media (max-width: 768px) {
  .denomination-group {
    grid-template-columns: 1fr;
    gap: var(--spacing-sm);
    text-align: center;
  }
  
  .denomination-group input {
    width: 100%;
    max-width: 200px;
  }
  
  .denomination-total {
    text-align: center;
  }
  
  .thanks-actions {
    flex-direction: column;
    align-items: center;
  }
}

@media (max-width: 480px) {
  .counter-form {
    gap: var(--spacing-sm);
  }
  
  .denomination-group {
    padding: var(--spacing-sm);
  }
  
  .total-section {
    padding: var(--spacing-md);
  }
}

/* Chatbot Tooltip Styles */
.chatbot-tooltip {
  position: absolute;
  bottom: 12px;
  right: 90px;
  background: var(--current-surface-variant);
  color: var(--current-on-surface-variant);
  padding: var(--spacing-sm) var(--spacing-md);
  border-radius: var(--radius-md);
  font-size: var(--md-sys-typescale-body-medium-size);
  font-weight: 500;
  white-space: nowrap;
  box-shadow: var(--md-sys-elevation-2);
  opacity: 0;
  visibility: hidden;
  transform: scale(0.9);
  transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  pointer-events: none;
  transform-origin: right center;
}

.chatbot-tooltip::after {
  content: '';
  position: absolute;
  top: 50%;
  right: -8px; /* Position the triangle tip */
  transform: translateY(-50%);
  width: 0;
  height: 0;
  border-top: 8px solid transparent;
  border-bottom: 8px solid transparent;
  border-left: 8px solid var(--current-surface-variant);
}

.chatbot-container.show-tooltip .chatbot-tooltip {
  opacity: 1;
  visibility: visible;
  transform: scale(1);
}