abt-universal-search/styles/main.css

Enterprise-grade Universal Search System with cross-platform compatibility, performance optimization, and security hardening

/**
 * Alon Search Component - Main Styles
 * Core styles with CSS custom properties support
 */

/* Import default light theme */
@import './themes/light.css';

/* Base component styles using CSS custom properties */
.alon-search-container {
  position: relative;
  display: inline-block;
  width: 100%;
  font-family: var(--alon-font-primary);
  font-size: var(--alon-font-size-base);
  line-height: var(--alon-line-height-normal);
  color: var(--alon-text-primary);
}

.alon-search-input {
  width: 100%;
  padding: var(--alon-spacing-padding-md);
  border: var(--alon-border-width-thin) var(--alon-border-style-solid) var(--alon-border-secondary);
  border-radius: var(--alon-border-radius-md);
  background-color: var(--alon-background-primary);
  color: var(--alon-text-primary);
  font-family: inherit;
  font-size: inherit;
  line-height: inherit;
  transition: var(--alon-transition-colors);
  box-sizing: border-box;
}

.alon-search-input:focus {
  outline: none;
  border-color: var(--alon-border-focus);
  box-shadow: var(--alon-shadow-focus-primary);
}

.alon-search-input:disabled {
  background-color: var(--alon-color-disabled);
  color: var(--alon-text-tertiary);
  cursor: not-allowed;
}

.alon-search-input::placeholder {
  color: var(--alon-text-tertiary);
  opacity: 1;
}

.alon-search-dropdown {
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  z-index: var(--alon-z-index-dropdown);
  max-height: 300px;
  overflow-y: auto;
  background-color: var(--alon-background-primary);
  border: var(--alon-border-width-thin) var(--alon-border-style-solid) var(--alon-border-primary);
  border-radius: var(--alon-border-radius-md);
  box-shadow: var(--alon-shadow-lg);
  margin-top: var(--alon-spacing-xs);
  opacity: 0;
  transform: translateY(-10px);
  transition: var(--alon-transition-all);
  pointer-events: none;
}

.alon-search-dropdown.visible {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}

.alon-search-dropdown::-webkit-scrollbar {
  width: 8px;
}

.alon-search-dropdown::-webkit-scrollbar-track {
  background: var(--alon-background-secondary);
}

.alon-search-dropdown::-webkit-scrollbar-thumb {
  background: var(--alon-border-secondary);
  border-radius: var(--alon-border-radius-sm);
}

.alon-search-dropdown::-webkit-scrollbar-thumb:hover {
  background: var(--alon-border-tertiary);
}

.alon-search-result {
  padding: var(--alon-spacing-padding-sm) var(--alon-spacing-padding-md);
  cursor: pointer;
  border-bottom: var(--alon-border-width-thin) var(--alon-border-style-solid) var(--alon-border-primary);
  transition: var(--alon-transition-colors);
  color: var(--alon-text-primary);
  display: flex;
  align-items: center;
  gap: var(--alon-spacing-gap-sm);
}

.alon-search-result:last-child {
  border-bottom: none;
}

.alon-search-result:hover {
  background-color: var(--alon-color-hover);
}

.alon-search-result.selected,
.alon-search-result:focus {
  background-color: var(--alon-color-primary-50);
  color: var(--alon-color-primary-700);
  outline: none;
}

.alon-search-result.selected:hover {
  background-color: var(--alon-color-primary-100);
}

.alon-search-result-icon {
  width: 16px;
  height: 16px;
  flex-shrink: 0;
  opacity: 0.7;
}

.alon-search-result-content {
  flex: 1;
  min-width: 0;
}

.alon-search-result-title {
  font-weight: var(--alon-font-weight-medium);
  line-height: var(--alon-line-height-tight);
  margin: 0;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.alon-search-result-description {
  font-size: var(--alon-font-size-sm);
  color: var(--alon-text-secondary);
  line-height: var(--alon-line-height-tight);
  margin: var(--alon-spacing-xs) 0 0;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.alon-search-result-meta {
  font-size: var(--alon-font-size-xs);
  color: var(--alon-text-tertiary);
  display: flex;
  align-items: center;
  gap: var(--alon-spacing-gap-xs);
  flex-shrink: 0;
}

.alon-loading-spinner {
  padding: var(--alon-spacing-padding-lg);
  text-align: center;
  color: var(--alon-text-secondary);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--alon-spacing-gap-sm);
}

.alon-loading-spinner::before {
  content: '';
  width: 16px;
  height: 16px;
  border: 2px solid currentColor;
  border-top-color: transparent;
  border-radius: 50%;
  animation: alon-spin var(--alon-animation-duration-slow) linear infinite;
}

.alon-error-message {
  padding: var(--alon-spacing-padding-md);
  background-color: rgba(239, 68, 68, 0.1);
  border: var(--alon-border-width-thin) var(--alon-border-style-solid) var(--alon-color-error);
  border-radius: var(--alon-border-radius-md);
  color: var(--alon-color-error);
  font-size: var(--alon-font-size-sm);
  display: flex;
  align-items: center;
  gap: var(--alon-spacing-gap-sm);
}

.alon-error-message-icon {
  width: 16px;
  height: 16px;
  flex-shrink: 0;
}

.alon-no-results {
  padding: var(--alon-spacing-padding-lg);
  text-align: center;
  color: var(--alon-text-secondary);
  font-style: italic;
}

.alon-search-footer {
  padding: var(--alon-spacing-padding-sm) var(--alon-spacing-padding-md);
  border-top: var(--alon-border-width-thin) var(--alon-border-style-solid) var(--alon-border-primary);
  background-color: var(--alon-background-secondary);
  font-size: var(--alon-font-size-xs);
  color: var(--alon-text-tertiary);
  text-align: center;
}

/* Keyboard navigation indicators */
.alon-search-result[data-keyboard-selected="true"] {
  background-color: var(--alon-color-primary-50);
  color: var(--alon-color-primary-700);
  outline: 2px solid var(--alon-border-focus);
  outline-offset: -2px;
}

/* Animations */
@keyframes alon-spin {
  from {
    transform: rotate(0deg);
  }
  to {
    transform: rotate(360deg);
  }
}

@keyframes alon-fade-in {
  from {
    opacity: 0;
    transform: translateY(-10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes alon-slide-down {
  from {
    opacity: 0;
    transform: scaleY(0.8) translateY(-10px);
  }
  to {
    opacity: 1;
    transform: scaleY(1) translateY(0);
  }
}

/* Responsive design */
@media (max-width: 576px) {
  .alon-search-dropdown {
    max-height: 250px;
  }
  
  .alon-search-result {
    padding: var(--alon-spacing-padding-md);
  }
  
  .alon-search-result-title {
    font-size: var(--alon-font-size-sm);
  }
  
  .alon-search-result-description {
    font-size: var(--alon-font-size-xs);
  }
}

@media (max-width: 400px) {
  .alon-search-container {
    font-size: var(--alon-font-size-sm);
  }
  
  .alon-search-input {
    padding: var(--alon-spacing-padding-sm);
  }
  
  .alon-search-dropdown {
    max-height: 200px;
  }
}

/* Dark theme media query support */
@media (prefers-color-scheme: dark) {
  .alon-theme-auto {
    @import './themes/dark.css';
  }
}

/* High contrast media query support */
@media (prefers-contrast: high) {
  .alon-theme-auto {
    @import './themes/high-contrast.css';
  }
}

/* Reduced motion support */
@media (prefers-reduced-motion: reduce) {
  .alon-search-dropdown {
    transition: none;
    animation: none;
  }
  
  .alon-search-result {
    transition: none;
  }
  
  .alon-loading-spinner::before {
    animation: none;
  }
  
  @keyframes alon-spin {
    from { transform: rotate(0deg); }
    to { transform: rotate(0deg); }
  }
}

/* Print styles */
@media print {
  .alon-search-dropdown {
    display: none;
  }
  
  .alon-search-input {
    border: 1px solid #000;
    background: white;
    color: black;
  }
}

/* Focus-visible support for better keyboard navigation */
@supports selector(:focus-visible) {
  .alon-search-input:focus {
    outline: none;
    box-shadow: none;
  }
  
  .alon-search-input:focus-visible {
    outline: 2px solid var(--alon-border-focus);
    outline-offset: 2px;
    box-shadow: var(--alon-shadow-focus-primary);
  }
  
  .alon-search-result:focus {
    outline: none;
  }
  
  .alon-search-result:focus-visible {
    outline: 2px solid var(--alon-border-focus);
    outline-offset: -2px;
  }
}

/* Container query support */
@supports (container-type: inline-size) {
  .alon-search-container {
    container-type: inline-size;
  }
  
  @container (max-width: 300px) {
    .alon-search-result-description,
    .alon-search-result-meta {
      display: none;
    }
    
    .alon-search-result {
      padding: var(--alon-spacing-padding-sm);
    }
  }
  
  @container (max-width: 200px) {
    .alon-search-result-icon {
      display: none;
    }
  }
}

/* Theme-specific utility classes */
.alon-theme-light {
  @import './themes/light.css';
}

.alon-theme-dark {
  @import './themes/dark.css';
}

.alon-theme-high-contrast {
  @import './themes/high-contrast.css';
}

/* Brand integration support */
.alon-branded {
  /* Brand-specific styles will be injected here by BrandIntegrationManager */
}

/* Animation control classes */
.alon-no-animation,
.alon-no-animation * {
  animation: none !important;
  transition: none !important;
}

.alon-reduce-animation,
.alon-reduce-animation * {
  animation-duration: 0.01ms !important;
  transition-duration: 0.01ms !important;
}

/* Accessibility enhancements */
.alon-high-contrast-mode {
  @import './themes/high-contrast.css';
}

.alon-large-text {
  font-size: 1.2em;
  line-height: 1.6;
}

.alon-large-text .alon-search-input {
  padding: var(--alon-spacing-padding-lg);
  font-size: 1.1em;
}

.alon-large-text .alon-search-result {
  padding: var(--alon-spacing-padding-lg);
}

/* Screen reader only content */
.alon-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;
}