Calendar/wwwroot/css/calendar-events-css.css

/* styles/components/events.css */

/* Event base styles */
swp-day-columns swp-event {
  position: absolute;
  border-radius: 3px;
  overflow: hidden;
  cursor: pointer;
  transition: box-shadow 150ms ease, transform 150ms ease;
  z-index: 10;
  left: 2px;
  right: 2px;
  color: var(--color-text);
  font-size: 12px;
  padding: 2px 4px;
  
  /* Event types */
  &[data-type="meeting"] {
    background: var(--color-event-meeting);
    border-left: 4px solid var(--color-event-meeting-border);
    color: var(--color-text);
  }
  
  &[data-type="meal"] {
    background: var(--color-event-meal);
    border-left: 4px solid var(--color-event-meal-border);
    color: var(--color-text);
  }
  
  &[data-type="work"] {
    background: var(--color-event-work);
    border-left: 4px solid var(--color-event-work-border);
    color: var(--color-text);
  }
  
  &[data-type="milestone"] {
    background: var(--color-event-milestone);
    border-left: 4px solid var(--color-event-milestone-border);
    color: var(--color-text);
  }
  
  &[data-type="personal"] {
    background: var(--color-event-personal);
    border-left: 4px solid var(--color-event-personal-border);
    color: var(--color-text);
  }
  
  &[data-type="deadline"] {
    background: var(--color-event-milestone);
    border-left: 4px solid var(--color-event-milestone-border);
    color: var(--color-text);
  }
  
  /* Dragging state */
  &.dragging {
    position: absolute;
    z-index: 999999;
    pointer-events: none;
    opacity: 0.8;
    left: 2px;
    right: 2px;
    width: auto;
  }
  
}

swp-day-columns swp-event:hover {
  box-shadow: var(--shadow-md);
  transform: translateX(2px);
  z-index: 20;
}

/* Resize handle indicator - created by JavaScript */
swp-resize-indicator {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 15px;
  background-image: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" width="16" height="4"><rect x="0" y="0" width="16" height="1" fill="%23666"/><rect x="0" y="3" width="16" height="1" fill="%23666"/></svg>');
  background-position: center center;
  background-repeat: no-repeat;
  pointer-events: none;
  z-index: 10;
  opacity: 0;
  animation: fadeIn 0.8s ease forwards;
}

@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

swp-day-columns swp-event[data-resize-hover="true"] {
  cursor: ns-resize;
}

swp-day-columns swp-event-time {
  display: block;
  font-size: 0.875rem;
  font-weight: 500;
  margin-bottom: 4px;
}

swp-day-columns swp-event-title {
  display: block;
  font-size: 0.875rem;
  line-height: 1.3;
}

/* Multi-day events */
swp-multi-day-event {
  position: relative;
  height: 28px;
  margin: 2px 4px;
  padding: 0 8px;
  border-radius: 4px;
  display: flex;
  align-items: center;
  font-size: 0.875rem;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition-fast);
  overflow: hidden;
  white-space: nowrap;
  text-overflow: ellipsis;
  
  /* Event type colors */
  &[data-type="milestone"] {
    background: var(--color-event-milestone);
    color: var(--color-event-milestone-border);
  }
  
  /* Continuation indicators */
  &[data-continues-before="true"] {
    border-top-left-radius: 0;
    border-bottom-left-radius: 0;
    margin-left: 0;
    padding-left: 20px;
    
    &::before {
      content: '◀';
      position: absolute;
      left: 4px;
      opacity: 0.6;
      font-size: 0.75rem;
    }
  }
  
  &[data-continues-after="true"] {
    border-top-right-radius: 0;
    border-bottom-right-radius: 0;
    margin-right: 0;
    padding-right: 20px;
    
    &::after {
      content: '▶';
      position: absolute;
      right: 4px;
      opacity: 0.6;
      font-size: 0.75rem;
    }
  }
  
  &:hover {
    transform: translateY(-1px);
    box-shadow: var(--shadow-sm);
  }
}

/* Event creation preview */
swp-event-preview {
  position: absolute;
  left: 8px;
  right: 8px;
  background: rgba(33, 150, 243, 0.1);
  border: 2px dashed var(--color-primary);
  border-radius: 4px;
  pointer-events: none;
  
  /* Position via CSS variables */
  top: calc(var(--preview-start) * var(--minute-height));
  height: calc(var(--preview-duration) * var(--minute-height));
}

/* Event filtering styles */
/* When filter is active, all events are dimmed by default */
swp-events-layer[data-filter-active="true"] swp-event {
  opacity: 0.2;
  transition: opacity 200ms ease;
}

/* Events that match the filter stay normal */
swp-events-layer[data-filter-active="true"] swp-event[data-matches="true"] {
  opacity: 1;
}

/* Event overlap styling */
/* Event group container for column sharing */
swp-event-group {
  position: absolute;
  display: grid;
  gap: 2px;
  left: 2px;
  right: 2px;
  z-index: 10;
}

/* Grid column configurations */
swp-event-group.cols-2 {
  grid-template-columns: 1fr 1fr;
}

swp-event-group.cols-3 {
  grid-template-columns: 1fr 1fr 1fr;
}

swp-event-group.cols-4 {
  grid-template-columns: 1fr 1fr 1fr 1fr;
}

/* Stack levels using margin-left */
swp-event-group.stack-level-0 {
  margin-left: 0px;
}

swp-event-group.stack-level-1 {
  margin-left: 15px;
}

swp-event-group.stack-level-2 {
  margin-left: 30px;
}

swp-event-group.stack-level-3 {
  margin-left: 45px;
}

swp-event-group.stack-level-4 {
  margin-left: 60px;
}

/* Child events within grid */
swp-event-group swp-event {
  position: relative;
  left: 0;
  right: 0;
}

/* All-day event transition for smooth repositioning */
swp-allday-container swp-event.transitioning {
  transition: grid-area 200ms ease-out, grid-row 200ms ease-out, grid-column 200ms ease-out;
}