// Link Component Styles
// -----------------------------------------------------------------------------
// Styles for the Link component with support for sizes, states, and themes
// Light mode colors per Figma: Enabled=green-400, Hover/Focus=green-500+underline,
// Active=green-400+underline, Visited=lilac-400, Disabled=gray-400
// Dark mode colors per Figma: Enabled=green-300, Hover/Focus=green-200+underline,
// Active=green-300+underline, Visited=lilac-300, Disabled=gray-500

@import "../../../styles/_colors.scss";

// Base link styles
.bds-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  text-decoration: none;
  transition: color 0.2s ease, text-decoration 0.2s ease;
  cursor: pointer;
  
  // Focus styles for accessibility (outline color set per theme below)
  &:focus-visible {
    outline: 2px solid $white; // Default to white (dark mode)
    outline-offset: 2px;
  }
  
  // Icon spacing
  .bds-link-icon {
    margin-left: 0;
    flex-shrink: 0;
  }
}

// Size variants
.bds-link--small {
  font-size: 14px;
  line-height: 1.5;
  gap: 6px;
}

.bds-link--medium {
  font-size: 16px;
  line-height: 1.5;
  gap: 8px;
}

.bds-link--large {
  font-size: 20px;
  line-height: 1.5;
  gap: 10px;
}

// Link color states (Light Mode - per Figma specs)
// Use element + class selector for higher specificity to override html.light a rules
a.bds-link,
.bds-link {
  // Enabled state: Green 400
  color: $green-400;
  text-decoration: none;
  
  // Hover state: Green 500 + underline
  &:hover:not(.bds-link--disabled) {
    color: $green-500;
    text-decoration: underline;
  }
  
  // Focus state: Green 500 + underline
  &:focus:not(.bds-link--disabled) {
    color: $green-500;
    text-decoration: underline;
  }
  
  // Active state: Green 400 + underline
  &:active:not(.bds-link--disabled) {
    color: $green-400;
    text-decoration: underline;
  }
  
  // Visited state: Lilac 400 (purple)
  &:visited:not(.bds-link--disabled) {
    color: $purple;
  }
}

// Light theme overrides - BDS links are excluded from general light theme rules
// so these rules will apply naturally without needing !important
html.light {
  a.bds-link,
  nav a.bds-link {
    // Enabled state: Green 400
    color: $green-400;
    text-decoration: none;
    
    // Focus outline: Black for light mode
    &:focus-visible {
      outline-color: $black;
    }
    
    // Hover state: Green 500 + underline
    &:hover:not(.bds-link--disabled) {
      color: $green-500;
      text-decoration: underline;
    }
    
    // Focus state: Green 500 + underline
    &:focus:not(.bds-link--disabled) {
      color: $green-500;
      text-decoration: underline;
    }
    
    // Active state: Green 400 + underline
    &:active:not(.bds-link--disabled) {
      color: $green-400;
      text-decoration: underline;
    }
    
    // Visited state: Lilac 400 (purple)
    &:visited:not(.bds-link--disabled) {
      color: $purple;
    }
    
    // Disabled state - needs to be here for specificity
    &.bds-link--disabled {
      color: $gray-400;
      cursor: not-allowed;
      pointer-events: none;
      text-decoration: none;
      
      &:hover,
      &:focus,
      &:active,
      &:visited {
        color: $gray-400;
        text-decoration: none;
      }
    }
  }
}

// Dark theme styles (per Figma specs)
html.dark {
  a.bds-link,
  nav a.bds-link {
    // Enabled state: Green 300
    color: $green-300;
    text-decoration: none;
    
    // Focus outline: White for dark mode
    &:focus-visible {
      outline-color: $white;
    }
    
    // Hover state: Green 200 + underline
    &:hover:not(.bds-link--disabled) {
      color: $green-200;
      text-decoration: underline;
    }
    
    // Focus state: Green 200 + underline
    &:focus:not(.bds-link--disabled) {
      color: $green-200;
      text-decoration: underline;
    }
    
    // Active state: Green 300 + underline
    &:active:not(.bds-link--disabled) {
      color: $green-300;
      text-decoration: underline;
    }
    
    // Visited state: Lilac 300
    &:visited:not(.bds-link--disabled) {
      color: $lilac-300;
    }
    
    // Disabled state - needs to be here for specificity
    &.bds-link--disabled {
      color: $gray-500;
      cursor: not-allowed;
      pointer-events: none;
      text-decoration: none;
      
      &:hover,
      &:focus,
      &:active,
      &:visited {
        color: $gray-500;
        text-decoration: none;
      }
    }
  }
}

// Disabled state (base/dark theme)
// Use element + class selector for higher specificity
a.bds-link.bds-link--disabled,
.bds-link.bds-link--disabled {
  color: $gray-400;
  cursor: not-allowed;
  pointer-events: none;
  text-decoration: none;
  
  .bds-link-icon {
    opacity: 0.5;
  }
  
  &:hover,
  &:focus,
  &:active,
  &:visited {
    color: $gray-400;
    text-decoration: none;
  }
}

// Dark theme adjustments for disabled (fallback for non-html.dark contexts)
html.dark,
.dark,
html:not(.light) {
  a.bds-link.bds-link--disabled,
  .bds-link.bds-link--disabled {
    color: $gray-500;
    
    &:hover,
    &:focus,
    &:active,
    &:visited {
      color: $gray-500;
    }
  }
}

// Inline variant (no icon spacing adjustment needed)
.bds-link--inline {
  display: inline;
  gap: 0;
  
  .bds-link-icon {
    display: none;
  }
}

// Standalone variants (internal/external)
// These variants use icons, spacing is handled by gap property in .bds-link