/**
 * KDPFast PWA Styles
 * Styles for install banners, toasts, update prompts, and offline indicators
 */

/* ============================================================================
   CSS Variables
   ============================================================================ */

:root {
  --pwa-primary: #1a237e;
  --pwa-primary-light: #3949ab;
  --pwa-accent: #ffc107;
  --pwa-accent-hover: #ffca28;
  --pwa-success: #4caf50;
  --pwa-warning: #ff9800;
  --pwa-error: #f44336;
  --pwa-info: #2196f3;
  --pwa-white: #ffffff;
  --pwa-dark: #212121;
  --pwa-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
  --pwa-shadow-lg: 0 8px 40px rgba(0, 0, 0, 0.2);
  --pwa-radius: 12px;
  --pwa-radius-sm: 8px;
  --pwa-transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --pwa-z-banner: 9998;
  --pwa-z-toast: 9999;
  --pwa-z-modal: 10000;
}

/* ============================================================================
   Install Banner
   ============================================================================ */

#pwa-install-banner {
  position: fixed;
  bottom: -100px;
  left: 0;
  right: 0;
  background: var(--pwa-white);
  box-shadow: var(--pwa-shadow-lg);
  z-index: var(--pwa-z-banner);
  transition: var(--pwa-transition);
  border-top: 3px solid var(--pwa-accent);
}

#pwa-install-banner.show {
  bottom: 0;
}

.pwa-banner-content {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 16px 20px;
  max-width: 1200px;
  margin: 0 auto;
}

.pwa-banner-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--pwa-radius-sm);
  flex-shrink: 0;
}

.pwa-banner-text {
  flex: 1;
  min-width: 0;
}

.pwa-banner-text strong {
  display: block;
  font-size: 1rem;
  font-weight: 600;
  color: var(--pwa-dark);
  margin-bottom: 2px;
}

.pwa-banner-text span {
  font-size: 0.875rem;
  color: #666;
}

.pwa-banner-install {
  background: var(--pwa-primary);
  color: var(--pwa-white);
  border: none;
  padding: 12px 24px;
  border-radius: var(--pwa-radius-sm);
  font-size: 0.9375rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--pwa-transition);
  white-space: nowrap;
}

.pwa-banner-install:hover {
  background: var(--pwa-primary-light);
  transform: translateY(-1px);
}

.pwa-banner-close {
  background: transparent;
  border: none;
  font-size: 1.5rem;
  color: #999;
  cursor: pointer;
  padding: 8px;
  line-height: 1;
  transition: var(--pwa-transition);
}

.pwa-banner-close:hover {
  color: var(--pwa-dark);
}

/* Mobile adjustments */
@media (max-width: 600px) {
  .pwa-banner-content {
    flex-wrap: wrap;
    gap: 12px;
  }
  
  .pwa-banner-icon {
    width: 40px;
    height: 40px;
  }
  
  .pwa-banner-text {
    flex: 1 1 calc(100% - 100px);
  }
  
  .pwa-banner-text strong {
    font-size: 0.9375rem;
  }
  
  .pwa-banner-text span {
    font-size: 0.8125rem;
  }
  
  .pwa-banner-install {
    flex: 1;
    text-align: center;
    padding: 10px 20px;
  }
  
  .pwa-banner-close {
    position: absolute;
    top: 8px;
    right: 8px;
  }
  
  #pwa-install-banner .pwa-banner-content {
    position: relative;
    padding-right: 40px;
  }
}

/* ============================================================================
   Update Toast
   ============================================================================ */

#pwa-update-toast {
  position: fixed;
  bottom: 20px;
  left: 50%;
  transform: translateX(-50%) translateY(100px);
  background: var(--pwa-dark);
  color: var(--pwa-white);
  border-radius: var(--pwa-radius);
  box-shadow: var(--pwa-shadow-lg);
  z-index: var(--pwa-z-toast);
  transition: var(--pwa-transition);
  max-width: calc(100vw - 40px);
  width: 400px;
}

#pwa-update-toast.show {
  transform: translateX(-50%) translateY(0);
}

.pwa-toast-content {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px 20px;
}

.pwa-toast-content span {
  flex: 1;
  font-size: 0.9375rem;
}

.pwa-toast-action {
  background: var(--pwa-accent);
  color: var(--pwa-dark);
  border: none;
  padding: 8px 16px;
  border-radius: var(--pwa-radius-sm);
  font-size: 0.875rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--pwa-transition);
  white-space: nowrap;
}

.pwa-toast-action:hover {
  background: var(--pwa-accent-hover);
}

.pwa-toast-dismiss {
  background: transparent;
  border: none;
  color: #999;
  font-size: 1.25rem;
  cursor: pointer;
  padding: 4px 8px;
  line-height: 1;
  transition: var(--pwa-transition);
}

.pwa-toast-dismiss:hover {
  color: var(--pwa-white);
}

@media (max-width: 480px) {
  #pwa-update-toast {
    bottom: 10px;
    width: calc(100vw - 20px);
    border-radius: var(--pwa-radius-sm);
  }
  
  .pwa-toast-content {
    flex-wrap: wrap;
    gap: 10px;
    padding: 14px 16px;
  }
  
  .pwa-toast-content span {
    flex: 1 1 100%;
    padding-right: 24px;
  }
  
  .pwa-toast-action {
    flex: 1;
    text-align: center;
  }
  
  .pwa-toast-dismiss {
    position: absolute;
    top: 8px;
    right: 8px;
  }
  
  #pwa-update-toast .pwa-toast-content {
    position: relative;
  }
}

/* ============================================================================
   Generic Toast Notifications
   ============================================================================ */

.pwa-toast {
  position: fixed;
  bottom: 20px;
  left: 50%;
  transform: translateX(-50%) translateY(100px);
  padding: 14px 24px;
  border-radius: var(--pwa-radius-sm);
  font-size: 0.9375rem;
  font-weight: 500;
  z-index: var(--pwa-z-toast);
  transition: var(--pwa-transition);
  max-width: calc(100vw - 40px);
  text-align: center;
  box-shadow: var(--pwa-shadow);
}

.pwa-toast.show {
  transform: translateX(-50%) translateY(0);
}

.pwa-toast-info {
  background: var(--pwa-info);
  color: var(--pwa-white);
}

.pwa-toast-success {
  background: var(--pwa-success);
  color: var(--pwa-white);
}

.pwa-toast-warning {
  background: var(--pwa-warning);
  color: var(--pwa-dark);
}

.pwa-toast-error {
  background: var(--pwa-error);
  color: var(--pwa-white);
}

/* ============================================================================
   Offline Indicator (Optional persistent indicator)
   ============================================================================ */

.pwa-offline-indicator {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background: var(--pwa-warning);
  color: var(--pwa-dark);
  text-align: center;
  padding: 8px 16px;
  font-size: 0.875rem;
  font-weight: 500;
  z-index: var(--pwa-z-banner);
  transform: translateY(-100%);
  transition: var(--pwa-transition);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
}

.pwa-offline-indicator.show {
  transform: translateY(0);
}

.pwa-offline-indicator svg {
  width: 18px;
  height: 18px;
}

/* Adjust body when offline indicator is shown */
body.pwa-offline .pwa-offline-indicator {
  transform: translateY(0);
}

body.pwa-offline {
  padding-top: 40px;
}

/* ============================================================================
   Install Modal (Alternative to banner)
   ============================================================================ */

.pwa-install-modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
  z-index: var(--pwa-z-modal);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  opacity: 0;
  visibility: hidden;
  transition: var(--pwa-transition);
}

.pwa-install-modal-overlay.show {
  opacity: 1;
  visibility: visible;
}

.pwa-install-modal {
  background: var(--pwa-white);
  border-radius: var(--pwa-radius);
  max-width: 400px;
  width: 100%;
  overflow: hidden;
  transform: scale(0.9);
  transition: var(--pwa-transition);
  box-shadow: var(--pwa-shadow-lg);
}

.pwa-install-modal-overlay.show .pwa-install-modal {
  transform: scale(1);
}

.pwa-install-modal-header {
  background: linear-gradient(135deg, var(--pwa-primary) 0%, var(--pwa-primary-light) 100%);
  color: var(--pwa-white);
  padding: 30px 24px;
  text-align: center;
}

.pwa-install-modal-header img {
  width: 72px;
  height: 72px;
  border-radius: 16px;
  margin-bottom: 16px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
}

.pwa-install-modal-header h2 {
  font-size: 1.5rem;
  font-weight: 600;
  margin: 0 0 8px 0;
}

.pwa-install-modal-header p {
  font-size: 0.9375rem;
  opacity: 0.9;
  margin: 0;
}

.pwa-install-modal-body {
  padding: 24px;
}

.pwa-install-features {
  list-style: none;
  padding: 0;
  margin: 0 0 24px 0;
}

.pwa-install-features li {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 12px 0;
  border-bottom: 1px solid #eee;
}

.pwa-install-features li:last-child {
  border-bottom: none;
}

.pwa-install-features li svg {
  width: 24px;
  height: 24px;
  color: var(--pwa-success);
  flex-shrink: 0;
}

.pwa-install-features li span {
  font-size: 0.9375rem;
  color: #444;
  line-height: 1.5;
}

.pwa-install-modal-actions {
  display: flex;
  gap: 12px;
}

.pwa-install-modal-actions button {
  flex: 1;
  padding: 14px 20px;
  border-radius: var(--pwa-radius-sm);
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--pwa-transition);
  border: none;
}

.pwa-install-modal-actions .pwa-btn-install {
  background: var(--pwa-primary);
  color: var(--pwa-white);
}

.pwa-install-modal-actions .pwa-btn-install:hover {
  background: var(--pwa-primary-light);
}

.pwa-install-modal-actions .pwa-btn-later {
  background: #f5f5f5;
  color: #666;
}

.pwa-install-modal-actions .pwa-btn-later:hover {
  background: #eee;
}

/* ============================================================================
   Loading/Syncing States
   ============================================================================ */

.pwa-syncing {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.875rem;
  color: #666;
}

.pwa-syncing-spinner {
  width: 16px;
  height: 16px;
  border: 2px solid #ddd;
  border-top-color: var(--pwa-primary);
  border-radius: 50%;
  animation: pwa-spin 0.8s linear infinite;
}

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

/* ============================================================================
   PWA Status Badge
   ============================================================================ */

.pwa-status-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 12px;
  border-radius: 20px;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.pwa-status-badge.installed {
  background: rgba(76, 175, 80, 0.1);
  color: var(--pwa-success);
}

.pwa-status-badge.installable {
  background: rgba(33, 150, 243, 0.1);
  color: var(--pwa-info);
}

.pwa-status-badge.offline {
  background: rgba(255, 152, 0, 0.1);
  color: var(--pwa-warning);
}

.pwa-status-badge::before {
  content: '';
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: currentColor;
}

/* ============================================================================
   iOS Install Instructions
   ============================================================================ */

.pwa-ios-instructions {
  background: #f8f9fa;
  border-radius: var(--pwa-radius);
  padding: 20px;
  margin-top: 16px;
}

.pwa-ios-instructions h4 {
  font-size: 0.9375rem;
  font-weight: 600;
  margin: 0 0 12px 0;
  color: var(--pwa-dark);
}

.pwa-ios-instructions ol {
  margin: 0;
  padding-left: 20px;
}

.pwa-ios-instructions li {
  font-size: 0.875rem;
  color: #666;
  margin-bottom: 8px;
  line-height: 1.5;
}

.pwa-ios-instructions li:last-child {
  margin-bottom: 0;
}

.pwa-ios-instructions .share-icon {
  display: inline-block;
  width: 20px;
  height: 20px;
  vertical-align: middle;
  margin: 0 4px;
}

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

@media (prefers-color-scheme: dark) {
  :root {
    --pwa-white: #1e1e1e;
    --pwa-dark: #ffffff;
  }
  
  #pwa-install-banner {
    background: #2d2d2d;
    border-top-color: var(--pwa-accent);
  }
  
  .pwa-banner-text span {
    color: #aaa;
  }
  
  #pwa-update-toast {
    background: #3d3d3d;
  }
  
  .pwa-install-modal {
    background: #2d2d2d;
  }
  
  .pwa-install-features li {
    border-bottom-color: #444;
  }
  
  .pwa-install-features li span {
    color: #ccc;
  }
  
  .pwa-install-modal-actions .pwa-btn-later {
    background: #3d3d3d;
    color: #aaa;
  }
  
  .pwa-install-modal-actions .pwa-btn-later:hover {
    background: #4d4d4d;
  }
  
  .pwa-ios-instructions {
    background: #3d3d3d;
  }
  
  .pwa-ios-instructions h4 {
    color: #fff;
  }
  
  .pwa-ios-instructions li {
    color: #aaa;
  }
}

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

@media (prefers-reduced-motion: reduce) {
  #pwa-install-banner,
  #pwa-update-toast,
  .pwa-toast,
  .pwa-install-modal-overlay,
  .pwa-install-modal,
  .pwa-offline-indicator {
    transition: none;
  }
  
  .pwa-syncing-spinner {
    animation: none;
  }
}

/* ============================================================================
   Print Styles - Hide PWA elements when printing
   ============================================================================ */

@media print {
  #pwa-install-banner,
  #pwa-update-toast,
  .pwa-toast,
  .pwa-install-modal-overlay,
  .pwa-offline-indicator {
    display: none !important;
  }
}