/**
 * FeedbackVault Shared Styles
 * 
 * Common styles shared between frontend and backend components.
 * Includes icons, buttons, notifications, and utility classes.
 * 
 * @package FeedbackVault
 * @version 1.0.0
 */

/* ==========================================================================
   CSS Custom Properties (Variables)
   ========================================================================== */

:root {
  /* Brand Colors */
  --feedbackvault-primary: #667eea;
  --feedbackvault-primary-dark: #4c63d2;
  --feedbackvault-primary-light: #8fa4f3;
  --feedbackvault-secondary: #764ba2;
  --feedbackvault-accent: #ff6b35;
  --feedbackvault-accent-light: #ff8c66;

  /* Semantic Colors */
  --feedbackvault-success: #27ae60;
  --feedbackvault-success-light: #2ecc71;
  --feedbackvault-success-dark: #229954;
  --feedbackvault-warning: #f39c12;
  --feedbackvault-warning-light: #f1c40f;
  --feedbackvault-warning-dark: #e67e22;
  --feedbackvault-error: #e74c3c;
  --feedbackvault-error-light: #ec7063;
  --feedbackvault-error-dark: #c0392b;
  --feedbackvault-info: #3498db;
  --feedbackvault-info-light: #5dade2;
  --feedbackvault-info-dark: #2980b9;

  /* Platform Colors */
  --feedbackvault-google: #4285f4;
  --feedbackvault-trustpilot: #00b67a;
  --feedbackvault-facebook: #1877f2;
  --feedbackvault-yelp: #d32323;
  --feedbackvault-linkedin: #0077b5;

  /* Star Rating Colors */
  --feedbackvault-star-filled: #ffc107;
  --feedbackvault-star-empty: #e0e0e0;
  --feedbackvault-star-hover: #ffcd38;

  /* Neutral Colors */
  --feedbackvault-white: #ffffff;
  --feedbackvault-black: #000000;
  --feedbackvault-gray-50: #f9fafb;
  --feedbackvault-gray-100: #f3f4f6;
  --feedbackvault-gray-200: #e5e7eb;
  --feedbackvault-gray-300: #d1d5db;
  --feedbackvault-gray-400: #9ca3af;
  --feedbackvault-gray-500: #6b7280;
  --feedbackvault-gray-600: #4b5563;
  --feedbackvault-gray-700: #374151;
  --feedbackvault-gray-800: #1f2937;
  --feedbackvault-gray-900: #111827;

  /* Typography */
  --feedbackvault-font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen-Sans, Ubuntu, Cantarell, 'Helvetica Neue', sans-serif;
  --feedbackvault-font-mono: Consolas, Monaco, 'Andale Mono', 'Ubuntu Mono', monospace;

  /* Spacing */
  --feedbackvault-spacing-xs: 0.25rem;
  --feedbackvault-spacing-sm: 0.5rem;
  --feedbackvault-spacing-md: 1rem;
  --feedbackvault-spacing-lg: 1.5rem;
  --feedbackvault-spacing-xl: 2rem;
  --feedbackvault-spacing-2xl: 3rem;

  /* Border Radius */
  --feedbackvault-radius-sm: 0.125rem;
  --feedbackvault-radius-md: 0.375rem;
  --feedbackvault-radius-lg: 0.5rem;
  --feedbackvault-radius-xl: 0.75rem;
  --feedbackvault-radius-2xl: 1rem;
  --feedbackvault-radius-full: 9999px;

  /* Shadows */
  --feedbackvault-shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --feedbackvault-shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --feedbackvault-shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
  --feedbackvault-shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);

  /* Transitions */
  --feedbackvault-transition-fast: 150ms ease-in-out;
  --feedbackvault-transition-normal: 300ms ease-in-out;
  --feedbackvault-transition-slow: 500ms ease-in-out;

  /* Z-Index Scale */
  --feedbackvault-z-dropdown: 1000;
  --feedbackvault-z-sticky: 1020;
  --feedbackvault-z-fixed: 1030;
  --feedbackvault-z-modal-backdrop: 1040;
  --feedbackvault-z-modal: 1050;
  --feedbackvault-z-popover: 1060;
  --feedbackvault-z-tooltip: 1070;
  --feedbackvault-z-toast: 1080;
}

/* ==========================================================================
   SVG Icons Base Styles
   ========================================================================== */

.feedbackvault-icon {
  display: inline-block;
  vertical-align: middle;
  flex-shrink: 0;
}

.feedbackvault-icon svg {
  display: block;
  width: 100%;
  height: 100%;
}

/* Icon Sizes */
.feedbackvault-icon-xs {
  width: 12px;
  height: 12px;
}

.feedbackvault-icon-sm {
  width: 16px;
  height: 16px;
}

.feedbackvault-icon-md {
  width: 20px;
  height: 20px;
}

.feedbackvault-icon-lg {
  width: 24px;
  height: 24px;
}

.feedbackvault-icon-xl {
  width: 32px;
  height: 32px;
}

.feedbackvault-icon-2xl {
  width: 48px;
  height: 48px;
}

/* ==========================================================================
   Star Rating Styles
   ========================================================================== */

.feedbackvault-star-rating {
  display: inline-flex;
  align-items: center;
  gap: 2px;
  line-height: 1;
}

.feedbackvault-star-icon {
  flex-shrink: 0;
  transition: all var(--feedbackvault-transition-fast);
}

.feedbackvault-star-icon.star-filled {
  color: var(--feedbackvault-star-filled);
}

.feedbackvault-star-icon.star-empty {
  color: var(--feedbackvault-star-empty);
}

.feedbackvault-star-icon.star-half {
  position: relative;
  color: var(--feedbackvault-star-empty);
}

.feedbackvault-star-icon.star-half::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 50%;
  height: 100%;
  background: var(--feedbackvault-star-filled);
  clip-path: polygon(0 0, 50% 0, 50% 100%, 0 100%);
}

/* Interactive star ratings */
.feedbackvault-star-rating.interactive .feedbackvault-star-icon {
  cursor: pointer;
}

.feedbackvault-star-rating.interactive .feedbackvault-star-icon:hover,
.feedbackvault-star-rating.interactive .feedbackvault-star-icon.hover {
  color: var(--feedbackvault-star-hover);
  transform: scale(1.1);
}

/* ==========================================================================
   Button Components
   ========================================================================== */

.feedbackvault-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--feedbackvault-spacing-sm);
  padding: var(--feedbackvault-spacing-sm) var(--feedbackvault-spacing-md);
  font-family: inherit;
  font-size: 14px;
  font-weight: 500;
  line-height: 1.5;
  text-decoration: none;
  border: 1px solid transparent;
  border-radius: var(--feedbackvault-radius-md);
  cursor: pointer;
  transition: all var(--feedbackvault-transition-fast);
  user-select: none;
  white-space: nowrap;
  vertical-align: middle;
}

.feedbackvault-btn:focus {
  outline: 2px solid var(--feedbackvault-primary);
  outline-offset: 2px;
}

.feedbackvault-btn:disabled,
.feedbackvault-btn.disabled {
  opacity: 0.5;
  cursor: not-allowed;
  pointer-events: none;
}

/* Button Variants */
.feedbackvault-btn-primary {
  background: linear-gradient(135deg, var(--feedbackvault-primary) 0%, var(--feedbackvault-secondary) 100%);
  color: var(--feedbackvault-white);
  border-color: var(--feedbackvault-primary);
  box-shadow: var(--feedbackvault-shadow-sm);
}

.feedbackvault-btn-primary:hover:not(:disabled) {
  background: linear-gradient(135deg, var(--feedbackvault-primary-dark) 0%, var(--feedbackvault-secondary) 100%);
  box-shadow: var(--feedbackvault-shadow-md);
  transform: translateY(-1px);
}

.feedbackvault-btn-secondary {
  background: var(--feedbackvault-white);
  color: var(--feedbackvault-gray-700);
  border-color: var(--feedbackvault-gray-300);
}

.feedbackvault-btn-secondary:hover:not(:disabled) {
  background: var(--feedbackvault-gray-50);
  border-color: var(--feedbackvault-gray-400);
}

.feedbackvault-btn-success {
  background: var(--feedbackvault-success);
  color: var(--feedbackvault-white);
  border-color: var(--feedbackvault-success);
}

.feedbackvault-btn-success:hover:not(:disabled) {
  background: var(--feedbackvault-success-dark);
  border-color: var(--feedbackvault-success-dark);
}

.feedbackvault-btn-warning {
  background: var(--feedbackvault-warning);
  color: var(--feedbackvault-white);
  border-color: var(--feedbackvault-warning);
}

.feedbackvault-btn-warning:hover:not(:disabled) {
  background: var(--feedbackvault-warning-dark);
  border-color: var(--feedbackvault-warning-dark);
}

.feedbackvault-btn-error {
  background: var(--feedbackvault-error);
  color: var(--feedbackvault-white);
  border-color: var(--feedbackvault-error);
}

.feedbackvault-btn-error:hover:not(:disabled) {
  background: var(--feedbackvault-error-dark);
  border-color: var(--feedbackvault-error-dark);
}

/* Button Sizes */
.feedbackvault-btn-xs {
  padding: var(--feedbackvault-spacing-xs) var(--feedbackvault-spacing-sm);
  font-size: 12px;
}

.feedbackvault-btn-sm {
  padding: var(--feedbackvault-spacing-xs) var(--feedbackvault-spacing-sm);
  font-size: 13px;
}

.feedbackvault-btn-lg {
  padding: var(--feedbackvault-spacing-md) var(--feedbackvault-spacing-lg);
  font-size: 16px;
}

.feedbackvault-btn-xl {
  padding: var(--feedbackvault-spacing-lg) var(--feedbackvault-spacing-xl);
  font-size: 18px;
}

/* Button with loading state */
.feedbackvault-btn.loading {
  position: relative;
  pointer-events: none;
}

.feedbackvault-btn.loading::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 16px;
  height: 16px;
  margin: -8px 0 0 -8px;
  border: 2px solid currentColor;
  border-radius: 50%;
  border-top-color: transparent;
  animation: feedbackvault-spin 0.8s linear infinite;
}

.feedbackvault-btn.loading .feedbackvault-btn-text {
  opacity: 0;
}

/* ==========================================================================
   Status Icons
   ========================================================================== */

.feedbackvault-status-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.feedbackvault-status-icon.status-success {
  color: var(--feedbackvault-success);
}

.feedbackvault-status-icon.status-warning {
  color: var(--feedbackvault-warning);
}

.feedbackvault-status-icon.status-error {
  color: var(--feedbackvault-error);
}

.feedbackvault-status-icon.status-info {
  color: var(--feedbackvault-info);
}

.feedbackvault-status-icon.status-loading {
  animation: feedbackvault-spin 1s linear infinite;
}

/* ==========================================================================
   Platform Icons
   ========================================================================== */

.feedbackvault-platform-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.feedbackvault-platform-icon.google {
  color: var(--feedbackvault-google);
}

.feedbackvault-platform-icon.trustpilot {
  color: var(--feedbackvault-trustpilot);
}

.feedbackvault-platform-icon.facebook {
  color: var(--feedbackvault-facebook);
}

.feedbackvault-platform-icon.yelp {
  color: var(--feedbackvault-yelp);
}

.feedbackvault-platform-icon.linkedin {
  color: var(--feedbackvault-linkedin);
}

/* ==========================================================================
   Loading Spinner
   ========================================================================== */

.feedbackvault-loading-spinner {
  animation: feedbackvault-spin 1s linear infinite;
}

@keyframes feedbackvault-spin {
  from {
    transform: rotate(0deg);
  }
  to {
    transform: rotate(360deg);
  }
}

/* ==========================================================================
   Notification System
   ========================================================================== */

.feedbackvault-notification {
  position: fixed;
  top: 20px;
  right: 20px;
  z-index: var(--feedbackvault-z-toast);
  max-width: 400px;
  padding: var(--feedbackvault-spacing-md);
  background: var(--feedbackvault-white);
  border: 1px solid var(--feedbackvault-gray-200);
  border-radius: var(--feedbackvault-radius-lg);
  box-shadow: var(--feedbackvault-shadow-lg);
  transform: translateX(100%);
  transition: transform var(--feedbackvault-transition-normal);
}

.feedbackvault-notification.show {
  transform: translateX(0);
}

.feedbackvault-notification-success {
  border-left: 4px solid var(--feedbackvault-success);
}

.feedbackvault-notification-warning {
  border-left: 4px solid var(--feedbackvault-warning);
}

.feedbackvault-notification-error {
  border-left: 4px solid var(--feedbackvault-error);
}

.feedbackvault-notification-info {
  border-left: 4px solid var(--feedbackvault-info);
}

.feedbackvault-notification .message {
  font-size: 14px;
  line-height: 1.5;
  color: var(--feedbackvault-gray-800);
}

.feedbackvault-notification .close {
  position: absolute;
  top: var(--feedbackvault-spacing-sm);
  right: var(--feedbackvault-spacing-sm);
  background: none;
  border: none;
  font-size: 18px;
  color: var(--feedbackvault-gray-400);
  cursor: pointer;
  line-height: 1;
  padding: 0;
  width: 20px;
  height: 20px;
}

.feedbackvault-notification .close:hover {
  color: var(--feedbackvault-gray-600);
}

/* ==========================================================================
   Badge Components
   ========================================================================== */

.feedbackvault-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: var(--feedbackvault-spacing-xs) var(--feedbackvault-spacing-sm);
  font-size: 12px;
  font-weight: 600;
  line-height: 1;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  border-radius: var(--feedbackvault-radius-full);
  white-space: nowrap;
}

.feedbackvault-badge-primary {
  background: var(--feedbackvault-primary);
  color: var(--feedbackvault-white);
}

.feedbackvault-badge-success {
  background: var(--feedbackvault-success);
  color: var(--feedbackvault-white);
}

.feedbackvault-badge-warning {
  background: var(--feedbackvault-warning);
  color: var(--feedbackvault-white);
}

.feedbackvault-badge-error {
  background: var(--feedbackvault-error);
  color: var(--feedbackvault-white);
}

.feedbackvault-badge-info {
  background: var(--feedbackvault-info);
  color: var(--feedbackvault-white);
}

.feedbackvault-badge-neutral {
  background: var(--feedbackvault-gray-100);
  color: var(--feedbackvault-gray-800);
}

/* ==========================================================================
   Card Components
   ========================================================================== */

.feedbackvault-card {
  background: var(--feedbackvault-white);
  border: 1px solid var(--feedbackvault-gray-200);
  border-radius: var(--feedbackvault-radius-lg);
  box-shadow: var(--feedbackvault-shadow-sm);
  overflow: hidden;
}

.feedbackvault-card-header {
  padding: var(--feedbackvault-spacing-md);
  border-bottom: 1px solid var(--feedbackvault-gray-200);
  background: var(--feedbackvault-gray-50);
}

.feedbackvault-card-body {
  padding: var(--feedbackvault-spacing-md);
}

.feedbackvault-card-footer {
  padding: var(--feedbackvault-spacing-md);
  border-top: 1px solid var(--feedbackvault-gray-200);
  background: var(--feedbackvault-gray-50);
}

/* ==========================================================================
   Form Components
   ========================================================================== */

.feedbackvault-form-group {
  margin-bottom: var(--feedbackvault-spacing-md);
}

.feedbackvault-form-label {
  display: block;
  margin-bottom: var(--feedbackvault-spacing-xs);
  font-size: 14px;
  font-weight: 500;
  color: var(--feedbackvault-gray-700);
}

.feedbackvault-form-control {
  display: block;
  width: 100%;
  padding: var(--feedbackvault-spacing-sm) var(--feedbackvault-spacing-md);
  font-size: 14px;
  line-height: 1.5;
  color: var(--feedbackvault-gray-900);
  background: var(--feedbackvault-white);
  border: 1px solid var(--feedbackvault-gray-300);
  border-radius: var(--feedbackvault-radius-md);
  transition: border-color var(--feedbackvault-transition-fast), box-shadow var(--feedbackvault-transition-fast);
}

.feedbackvault-form-control:focus {
  outline: none;
  border-color: var(--feedbackvault-primary);
  box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

.feedbackvault-form-control:disabled {
  background: var(--feedbackvault-gray-50);
  opacity: 0.6;
  cursor: not-allowed;
}

.feedbackvault-form-help {
  margin-top: var(--feedbackvault-spacing-xs);
  font-size: 12px;
  color: var(--feedbackvault-gray-500);
}

.feedbackvault-form-error {
  margin-top: var(--feedbackvault-spacing-xs);
  font-size: 12px;
  color: var(--feedbackvault-error);
}

/* ==========================================================================
   Utility Classes
   ========================================================================== */

/* Screen Reader Only */
.feedbackvault-sr-only {
  position: absolute !important;
  width: 1px !important;
  height: 1px !important;
  padding: 0 !important;
  margin: -1px !important;
  overflow: hidden !important;
  clip: rect(0, 0, 0, 0) !important;
  white-space: nowrap !important;
  border: 0 !important;
}

/* Text Utilities */
.feedbackvault-text-center {
  text-align: center !important;
}

.feedbackvault-text-left {
  text-align: left !important;
}

.feedbackvault-text-right {
  text-align: right !important;
}

.feedbackvault-text-truncate {
  overflow: hidden !important;
  text-overflow: ellipsis !important;
  white-space: nowrap !important;
}

/* Spacing Utilities */
.feedbackvault-m-0 { margin: 0 !important; }
.feedbackvault-m-1 { margin: var(--feedbackvault-spacing-xs) !important; }
.feedbackvault-m-2 { margin: var(--feedbackvault-spacing-sm) !important; }
.feedbackvault-m-3 { margin: var(--feedbackvault-spacing-md) !important; }
.feedbackvault-m-4 { margin: var(--feedbackvault-spacing-lg) !important; }
.feedbackvault-m-5 { margin: var(--feedbackvault-spacing-xl) !important; }

.feedbackvault-p-0 { padding: 0 !important; }
.feedbackvault-p-1 { padding: var(--feedbackvault-spacing-xs) !important; }
.feedbackvault-p-2 { padding: var(--feedbackvault-spacing-sm) !important; }
.feedbackvault-p-3 { padding: var(--feedbackvault-spacing-md) !important; }
.feedbackvault-p-4 { padding: var(--feedbackvault-spacing-lg) !important; }
.feedbackvault-p-5 { padding: var(--feedbackvault-spacing-xl) !important; }

/* Display Utilities */
.feedbackvault-d-none { display: none !important; }
.feedbackvault-d-block { display: block !important; }
.feedbackvault-d-inline { display: inline !important; }
.feedbackvault-d-inline-block { display: inline-block !important; }
.feedbackvault-d-flex { display: flex !important; }
.feedbackvault-d-inline-flex { display: inline-flex !important; }

/* Flexbox Utilities */
.feedbackvault-align-items-center { align-items: center !important; }
.feedbackvault-align-items-start { align-items: flex-start !important; }
.feedbackvault-align-items-end { align-items: flex-end !important; }
.feedbackvault-justify-content-center { justify-content: center !important; }
.feedbackvault-justify-content-between { justify-content: space-between !important; }
.feedbackvault-justify-content-around { justify-content: space-around !important; }

/* ==========================================================================
   Responsive Utilities
   ========================================================================== */

@media (max-width: 768px) {
  .feedbackvault-notification {
    top: 10px;
    right: 10px;
    left: 10px;
    max-width: none;
  }

  .feedbackvault-btn {
    font-size: 13px;
  }

  .feedbackvault-btn-lg {
    font-size: 15px;
  }
}

/* ==========================================================================
   Dark Mode Support
   ========================================================================== */

@media (prefers-color-scheme: dark) {
  :root {
    --feedbackvault-white: #1f2937;
    --feedbackvault-black: #f9fafb;
    --feedbackvault-gray-50: #374151;
    --feedbackvault-gray-100: #4b5563;
    --feedbackvault-gray-200: #6b7280;
    --feedbackvault-gray-300: #9ca3af;
    --feedbackvault-gray-400: #d1d5db;
    --feedbackvault-gray-500: #e5e7eb;
    --feedbackvault-gray-600: #f3f4f6;
    --feedbackvault-gray-700: #f9fafb;
    --feedbackvault-gray-800: #ffffff;
    --feedbackvault-gray-900: #ffffff;
  }

  .feedbackvault-notification {
    background: var(--feedbackvault-gray-800);
    border-color: var(--feedbackvault-gray-600);
    color: var(--feedbackvault-gray-100);
  }

  .feedbackvault-card {
    background: var(--feedbackvault-gray-800);
    border-color: var(--feedbackvault-gray-600);
  }

  .feedbackvault-card-header,
  .feedbackvault-card-footer {
    background: var(--feedbackvault-gray-700);
    border-color: var(--feedbackvault-gray-600);
  }
}

/* ==========================================================================
   High Contrast Mode
   ========================================================================== */

@media (prefers-contrast: high) {
  .feedbackvault-btn {
    border-width: 2px;
  }

  .feedbackvault-form-control:focus {
    border-width: 2px;
    box-shadow: none;
  }

  .feedbackvault-card {
    border-width: 2px;
  }
}

/* ==========================================================================
   Reduced Motion
   ========================================================================== */

@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;
  }

  .feedbackvault-loading-spinner {
    animation: none;
  }

  .feedbackvault-btn.loading::before {
    animation: none;
  }
}