Calendar/wwwroot/css/calendar-layout-css.css

/* styles/layout.css - POC Structure Implementation */

/* Calendar wrapper container - full viewport */
.calendar-wrapper {
  width: 100vw;
  height: 100vh;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  box-sizing: border-box;
  overflow: hidden;
}

/* Main calendar container - full height */
swp-calendar {
  display: flex;
  flex-direction: column;
  height: 100vh;
  width: 100%;
  background: var(--color-background);
  position: relative;
  overflow: hidden;
}

/* Navigation bar layout */
swp-calendar-nav {
  display: grid;
  grid-template-columns: auto 1fr auto auto;
  align-items: center;
  gap: 20px;
  padding: 12px 16px;
  background: var(--color-background);
  border-bottom: 1px solid var(--color-border);
  box-shadow: var(--shadow-sm);
}

/* Calendar container grid - POC structure */
swp-calendar-container {
  flex: 1;
  display: grid;
  grid-template-columns: 60px 1fr;
  grid-template-rows: auto 1fr 20px;
  overflow: hidden;
  position: relative;
}


/* Header spacer for time axis alignment */
swp-header-spacer {
  grid-column: 1;
  grid-row: 1;
  height: 80px; /* Same as week header height */
  background: var(--color-surface);
  border-right: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
  z-index: 5; /* Higher than time-axis to cover it when scrolling */
  position: relative;
}

/* Right scrollbar - positioned at browser edge */
swp-right-scrollbar {
  position: fixed;
  top: 0;
  right: 0;
  width: 20px;
  height: 100vh;
  background: #f0f0f0;
  border-left: 2px solid #333;
  z-index: 1000;
  overflow: hidden;
}

/* Week container for sliding */
swp-week-container {
  grid-column: 2;
  grid-row: 1 / 3;
  display: grid;
  grid-template-rows: auto 1fr;
  position: relative;
  width: 100%;
  transition: transform 400ms cubic-bezier(0.4, 0, 0.2, 1);
}

/* Time axis */
swp-time-axis {
  grid-column: 1;
  grid-row: 2;
  background: var(--color-surface);
  border-right: 1px solid var(--color-border);
  position: sticky;
  left: 0;
  z-index: 3; /* Lower than header elements so it scrolls behind them */
  width: 60px;
  display: flex;
  flex-direction: column;
}

/* Right column - now part of fixed scrollbar */
swp-right-column {
  position: absolute;
  top: 80px; /* Below navigation */
  left: 0;
  right: 0;
  bottom: 20px; /* Above horizontal scrollbar */
  background: transparent;
}

/* Scroll handle */
swp-scroll-handle {
  position: absolute;
  top: 0;
  left: 2px;
  width: 16px;
  height: 40px;
  background: #666;
  border-radius: 8px;
  cursor: grab;
  transition: background-color 0.2s ease;
  z-index: 5;
}

swp-scroll-handle:hover {
  background: #333;
}

swp-scroll-handle.dragging {
  background: #007bff;
}

/* Bottom row for horizontal scrollbar */
swp-bottom-spacer {
  grid-column: 1;
  grid-row: 3;
  height: 20px;
  background: var(--color-surface);
  border-right: 1px solid var(--color-border);
  border-top: 1px solid var(--color-border);
}

/* Bottom scrollbar - positioned at browser edge */
swp-bottom-scrollbar {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 20px; /* Leave space for vertical scrollbar */
  height: 20px;
  background: #f0f0f0;
  border-top: 2px solid #333;
  z-index: 1000;
  overflow: hidden;
}

swp-bottom-column {
  position: absolute;
  top: 0;
  left: 60px; /* Start after time-axis */
  right: 0;
  bottom: 0;
  background: transparent;
}

/* Horizontal scroll handle */
swp-horizontal-scroll-handle {
  position: absolute;
  left: 0;
  top: 2px;
  width: 40px;
  height: 16px;
  background: #666;
  border-radius: 8px;
  cursor: grab;
  transition: background-color 0.2s ease;
  z-index: 5;
}

swp-horizontal-scroll-handle:hover {
  background: #333;
}

swp-horizontal-scroll-handle.dragging {
  background: #007bff;
}

swp-hour-marker {
  height: var(--hour-height);
  padding: 0 8px 8px 8px;
  font-size: 0.75rem;
  color: var(--color-text-secondary);
  display: flex;
  align-items: flex-start;
  position: relative;
}

swp-hour-marker::after {
  content: '';
  position: absolute;
  top: 0;
  left: 100%;
  width: 100vw;
  height: 1px;
  background: var(--color-grid-line);
  pointer-events: none;
}

/* Week header */
swp-week-header {
  display: grid;
  grid-template-columns: repeat(7, minmax(250px, 1fr));
  min-width: 1750px; /* Match day-columns width */
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  position: sticky;
  top: 0;
  z-index: 5; /* Higher than time-axis to cover it when scrolling */
  height: 80px; /* Fixed height */
}

swp-day-header {
  padding: 12px;
  text-align: center;
  border-right: 1px solid var(--color-grid-line);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

swp-day-header:last-child {
  border-right: none;
}

swp-day-name {
  display: block;
  font-weight: 500;
  font-size: 0.875rem;
  color: var(--color-text-secondary);
}

swp-day-date {
  display: block;
  font-size: 1.25rem;
  font-weight: 600;
  margin-top: 4px;
}

swp-day-header[data-today="true"] swp-day-date {
  color: var(--color-primary);
  background: rgba(33, 150, 243, 0.1);
  border-radius: 50%;
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 4px auto 0;
}

/* Scrollable content */
swp-scrollable-content {
  overflow-y: auto;
  overflow-x: auto;
  scroll-behavior: smooth;
  position: relative;
  display: grid;
  /* Height will be set dynamically by ScrollManager via ResizeObserver */
  width: calc(100vw - 60px - 20px); /* Viewport width minus time-axis and scrollbar */
  
  /* Hide native scrollbars */
  scrollbar-width: none; /* Firefox */
  -ms-overflow-style: none; /* IE/Edge */
}

/* Chrome/Safari/Opera */
swp-scrollable-content::-webkit-scrollbar {
  display: none;
}

/* Time grid */
swp-time-grid {
  position: relative;
  height: calc((var(--day-end-hour) - var(--day-start-hour)) * var(--hour-height));
}

swp-time-grid::before {
  content: '';
  position: absolute;
  top: calc((var(--work-start-hour) - var(--day-start-hour)) * var(--hour-height));
  height: calc((var(--work-end-hour) - var(--work-start-hour)) * var(--hour-height));
  left: 0;
  right: 0;
  background: var(--color-work-hours);
  pointer-events: none;
}

/* Grid lines */
swp-grid-lines {
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: var(--z-grid);
  background-image: repeating-linear-gradient(
    to bottom,
    transparent,
    transparent calc(var(--hour-height) / 4 - 1px),
    var(--color-grid-line-light) calc(var(--hour-height) / 4 - 1px),
    var(--color-grid-line-light) calc(var(--hour-height) / 4)
  );
}

/* Day columns */
swp-day-columns {
  position: absolute;
  inset: 0;
  display: grid;
  grid-template-columns: repeat(7, minmax(250px, 1fr));
  min-width: 1750px; /* 7 * 250px = force horizontal scroll */
}

swp-day-column {
  position: relative;
  border-right: 1px solid var(--color-grid-line);
  min-width: 250px;
}

swp-day-column:last-child {
  border-right: none;
}

swp-events-layer {
  position: absolute;
  inset: 0;
}

swp-event {
  pointer-events: auto;
}

/* Current time indicator */
swp-current-time-indicator {
  position: absolute;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--color-current-time);
  pointer-events: none;
  z-index: var(--z-current-time);
  
  /* Time label */
  &::before {
    content: attr(data-time);
    position: absolute;
    left: -55px;
    top: -10px;
    background: var(--color-current-time);
    color: white;
    padding: 2px 6px;
    font-size: 0.75rem;
    border-radius: 3px;
    white-space: nowrap;
  }
  
  /* Animated dot */
  &::after {
    content: '';
    position: absolute;
    right: -4px;
    top: -4px;
    width: 10px;
    height: 10px;
    background: var(--color-current-time);
    border-radius: 50%;
    box-shadow: 0 0 0 2px rgba(255, 0, 0, 0.3);
  }
}

/* Week navigation animations - simplified */
swp-calendar-container.week-transition {
  transition: opacity 300ms ease;
}

swp-calendar-container.week-transition-out {
  opacity: 0.5;
}