/**
 * Collaboration Styles for Real-time Inventory Management
 * Presence indicators, cursor highlights, and user avatars
 */

/* ============================================================================
   Presence Container
   ============================================================================ */

.collab-presence-container {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  padding: 0.75rem 1rem;
  background: linear-gradient(135deg, #8bc34a 0%, #558b2f 100%);
  border-radius: 8px;
  margin-top: 1.5rem;
  margin-bottom: 0;
  box-shadow: 0 2px 8px rgba(139, 195, 74, 0.3);
}

/* Connection Status */
.collab-status {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding-right: 1rem;
  border-right: 1px solid rgba(255, 255, 255, 0.2);
}

.collab-status-indicator {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background-color: #6c757d;
  animation: pulse-offline 2s infinite;
}

.collab-status-indicator.connected {
  background-color: #28a745;
  animation: pulse-online 2s infinite;
}

.collab-status-indicator.disconnected {
  background-color: #dc3545;
  animation: pulse-offline 2s infinite;
}

@keyframes pulse-online {
  0%, 100% {
    opacity: 1;
    box-shadow: 0 0 0 0 rgba(40, 167, 69, 0.7);
  }
  50% {
    opacity: 0.8;
    box-shadow: 0 0 0 4px rgba(40, 167, 69, 0);
  }
}

@keyframes pulse-offline {
  0%, 100% {
    opacity: 1;
  }
  50% {
    opacity: 0.5;
  }
}

.collab-status-text {
  font-size: 0.875rem;
  font-weight: 600;
  color: #ffffff;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

/* ============================================================================
   Users List
   ============================================================================ */

.collab-users-list {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-wrap: wrap;
  flex: 1;
}

.collab-no-users {
  font-size: 0.875rem;
  color: rgba(255, 255, 255, 0.7);
  font-style: italic;
}

.collab-user {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.25rem 0.75rem 0.25rem 0.25rem;
  background: rgba(255, 255, 255, 0.15);
  border-radius: 20px;
  transition: all 0.2s ease;
  cursor: default;
}

.collab-user:hover {
  background: rgba(255, 255, 255, 0.25);
  transform: translateY(-1px);
}

.collab-user-avatar {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  font-weight: 700;
  color: #ffffff;
  background-color: #667eea;
  border: 2px solid #ffffff;
  text-transform: uppercase;
}

.collab-user-name {
  font-size: 0.875rem;
  font-weight: 500;
  color: #ffffff;
  white-space: nowrap;
  max-width: 120px;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* ============================================================================
   Row Editing Indicators
   ============================================================================ */

/* Container for multiple user indicators */
td[data-field] {
  position: relative;
  overflow: visible !important; /* Prevent avatar cutoff */
}

/* Local user's own selection styling is now handled in table.css to avoid duplication */

/* Cell being edited by another remote user */
td.collab-cell-editing {
  position: relative;
  overflow: visible !important; /* Prevent avatar cutoff */
  border-radius: 0 !important; /* Sharp corners */
}

/* Support for multiple simultaneous editors */
td.collab-cell-editing[data-collab-count="1"] {
  background-color: rgba(102, 126, 234, 0.1) !important;
  box-shadow: inset 0 0 0 3px var(--collab-user-color-1, #667eea) !important;
  border-radius: 0 !important; /* Sharp corners */
}

td.collab-cell-editing[data-collab-count="2"] {
  background: linear-gradient(135deg, 
    rgba(102, 126, 234, 0.1) 0%, 
    rgba(102, 126, 234, 0.1) 50%,
    rgba(255, 107, 107, 0.1) 50%,
    rgba(255, 107, 107, 0.1) 100%) !important;
  box-shadow: inset 0 0 0 3px var(--collab-user-color-1, #667eea) !important;
  border-radius: 0 !important; /* Sharp corners */
}

td.collab-cell-editing[data-collab-count="3"],
td.collab-cell-editing[data-collab-count="4"],
td.collab-cell-editing[data-collab-count="5"] {
  background: conic-gradient(
    from 0deg,
    rgba(102, 126, 234, 0.15) 0deg,
    rgba(102, 126, 234, 0.15) calc(360deg / var(--collab-count, 3)),
    transparent calc(360deg / var(--collab-count, 3))
  ) !important;
  box-shadow: inset 0 0 0 3px var(--collab-user-color-1, #667eea) !important;
  border-radius: 0 !important; /* Sharp corners */
}

td.collab-cell-editing:focus-visible {
  outline: none;
}

/* User indicator badge on field - smaller size, positioned in bottom-right */
.collab-user-indicator {
  position: absolute;
  bottom: 4px;
  right: 4px;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.55rem;
  font-weight: 700;
  color: #ffffff;
  background-color: #667eea;
  border: 2px solid #ffffff;
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.25);
  z-index: 1000;
  pointer-events: none;
  cursor: default;
  opacity: 0;
  transition: opacity 0.3s ease;
}

/* Show indicator when hovering within ~4 cells in any direction */
/* This uses adjacent sibling selectors to detect proximity */
td[data-field]:hover .collab-user-indicator,
td[data-field]:hover ~ td .collab-user-indicator,
td[data-field]:hover ~ td ~ td .collab-user-indicator,
td[data-field]:hover ~ td ~ td ~ td .collab-user-indicator,
td[data-field]:hover ~ td ~ td ~ td ~ td .collab-user-indicator,
tr:has(td[data-field]:hover) td .collab-user-indicator,
tr:has(td[data-field]:hover) ~ tr td .collab-user-indicator,
tr:has(td[data-field]:hover) ~ tr ~ tr td .collab-user-indicator,
tr:has(td[data-field]:hover) ~ tr ~ tr ~ tr td .collab-user-indicator,
tr:has(td[data-field]:hover) ~ tr ~ tr ~ tr ~ tr td .collab-user-indicator,
td[data-field].show-collab-indicator .collab-user-indicator {
  opacity: 1;
}

/* Stack indicators for multiple users - now in bottom-right corner */
.collab-user-indicator:nth-of-type(1) {
  bottom: 4px;
  right: 4px;
}

.collab-user-indicator:nth-of-type(2) {
  bottom: 4px;
  right: 28px;
}

.collab-user-indicator:nth-of-type(3) {
  bottom: 28px;
  right: 4px;
}

.collab-user-indicator:nth-of-type(4) {
  bottom: 28px;
  right: 28px;
}

/* Always keep the editing border visible */
td.collab-cell-editing {
  /* Border stays visible even when indicator is hidden */
}

/* ============================================================================
   Flash Update Animation
   ============================================================================ */

/* Flash animation when row is updated by another user */
tr.collab-flash-update {
  animation: flashUpdate 2s ease;
}

@keyframes flashUpdate {
  0%, 100% {
    background-color: transparent;
  }
  10%, 30% {
    background-color: rgba(40, 167, 69, 0.15);
  }
  20% {
    background-color: rgba(40, 167, 69, 0.25);
  }
}

/* ============================================================================
   Cursor Position Indicators (Optional Enhancement)
   ============================================================================ */

.collab-cursor {
  position: absolute;
  width: 2px;
  height: 20px;
  background-color: var(--collab-user-color, #667eea);
  pointer-events: none;
  z-index: 1000;
  animation: blink 1s infinite;
}

.collab-cursor::before {
  content: attr(data-username);
  position: absolute;
  top: -20px;
  left: 4px;
  background-color: var(--collab-user-color, #667eea);
  color: white;
  padding: 2px 6px;
  border-radius: 3px;
  font-size: 0.7rem;
  white-space: nowrap;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

@keyframes blink {
  0%, 49% {
    opacity: 1;
  }
  50%, 100% {
    opacity: 0;
  }
}

/* ============================================================================
   Responsive Adjustments
   ============================================================================ */

@media (max-width: 768px) {
  .collab-presence-container {
    flex-direction: column;
    align-items: flex-start;
    gap: 1rem;
  }

  .collab-status {
    padding-right: 0;
    padding-bottom: 0.75rem;
    border-right: none;
    border-bottom: 1px solid rgba(255, 255, 255, 0.2);
    width: 100%;
  }

  .collab-users-list {
    width: 100%;
  }

  .collab-user-name {
    max-width: 100px;
  }
}

@media (max-width: 480px) {
  .collab-user-name {
    display: none;
  }

  .collab-user {
    padding: 0.25rem;
    background: transparent;
  }

  .collab-user-avatar {
    width: 28px;
    height: 28px;
    font-size: 0.7rem;
  }
}

/* ============================================================================
   Dark Mode Support (if applicable)
   ============================================================================ */

@media (prefers-color-scheme: dark) {
  .collab-presence-container {
    background: linear-gradient(135deg, #4a5568 0%, #2d3748 100%);
  }

}

/* ============================================================================
   Accessibility
   ============================================================================ */

.collab-user:focus-visible {
  outline: 2px solid #ffffff;
  outline-offset: 2px;
}

.collab-user-indicator:focus-visible {
  outline: 2px solid #ffffff;
  outline-offset: 2px;
}

/* Reduced motion support */
@media (prefers-reduced-motion: reduce) {
  .collab-status-indicator,
  .collab-user-indicator,
  tr.collab-flash-update,
  .collab-cursor {
    animation: none !important;
  }

  .collab-user:hover {
    transform: none;
  }
}