:root {
  --hour-height: 64px;
  --time-axis-width: 60px;
  --grid-columns: 7;
  --day-column-min-width: 200px;
  --day-start-hour: 0;
  --day-end-hour: 24;
  --color-border: #e0e0e0;
  --color-surface: #fff;
  --color-text-secondary: #666;
  --color-primary: #1976d2;
  --color-hour-line: rgba(0, 0, 0, 0.2);
  --color-grid-line-light: rgba(0, 0, 0, 0.05);
}

* { box-sizing: border-box; margin: 0; padding: 0; }

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background: #f5f5f5;
}

.calendar-wrapper {
  height: 100vh;
  display: flex;
  flex-direction: column;
}

swp-calendar {
  display: grid;
  grid-template-rows: auto 1fr;
  height: 100%;
  background: var(--color-surface);
}

/* Nav */
swp-calendar-nav {
  display: flex;
  gap: 16px;
  padding: 12px 16px;
  border-bottom: 1px solid var(--color-border);
  align-items: center;
}

swp-nav-button {
  padding: 8px 16px;
  border: 1px solid var(--color-border);
  border-radius: 4px;
  cursor: pointer;
  background: var(--color-surface);
}

swp-nav-button:hover { background: #f0f0f0; }

swp-week-info {
  margin-left: auto;
  text-align: right;
}

swp-week-number {
  font-weight: 600;
  display: block;
}

swp-date-range {
  font-size: 12px;
  color: var(--color-text-secondary);
}

/* Container */
swp-calendar-container {
  display: grid;
  grid-template-columns: var(--time-axis-width) 1fr;
  grid-template-rows: auto 1fr;
  overflow: hidden;
  height: 100%;
}

/* Time axis */
swp-time-axis {
  grid-column: 1;
  grid-row: 1 / 3;
  display: grid;
  grid-template-rows: subgrid;
  border-right: 1px solid var(--color-border);
  background: var(--color-surface);
  overflow: hidden;
}

swp-header-drawer {
  display: block;
  height: 0;
  overflow: hidden;
  background: #fafafa;
  border-bottom: 1px solid var(--color-border);
}

swp-time-axis-content {
  display: grid;
  grid-auto-rows: var(--hour-height);
  overflow: hidden;
}

swp-hour-marker {
  height: var(--hour-height);
  padding: 4px 8px;
  font-size: 11px;
  color: var(--color-text-secondary);
  text-align: right;
  position: relative;
}

swp-hour-marker::after {
  content: '';
  position: absolute;
  top: -1px;
  right: 0;
  width: 5px;
  height: 1px;
  background: var(--color-hour-line);
}

/* Grid container */
swp-grid-container {
  grid-column: 2;
  grid-row: 1 / 3;
  display: grid;
  grid-template-rows: subgrid;
  overflow: hidden;
}

/* Viewport/Track for slide animation */
swp-header-viewport {
  overflow: hidden;
}

swp-content-viewport {
  overflow: hidden;
  min-height: 0; /* Tillader at krympe i grid */
}

swp-header-track {
  display: flex;
}

swp-content-track {
  display: flex;
  height: 100%;
}

swp-header-track > swp-calendar-header {
  flex: 0 0 100%;
}

swp-content-track > swp-scrollable-content {
  flex: 0 0 100%;
  height: 100%;
}

/* Header */
swp-calendar-header {
  display: grid;
  grid-template-columns: repeat(var(--grid-columns), 1fr);
  grid-auto-rows: auto;
  background: var(--color-surface);
  overflow-y: scroll;
  overflow-x: hidden;
}

swp-calendar-header::-webkit-scrollbar {
  background: transparent;
}

swp-calendar-header::-webkit-scrollbar-thumb {
  background: transparent;
}

swp-calendar-header[data-levels="date"] > swp-day-header { grid-row: 1; }

swp-calendar-header[data-levels="resource date"] > swp-resource-header { grid-row: 1; }
swp-calendar-header[data-levels="resource date"] > swp-day-header { grid-row: 2; }

swp-calendar-header[data-levels="team resource date"] > swp-team-header { grid-row: 1; }
swp-calendar-header[data-levels="team resource date"] > swp-resource-header { grid-row: 2; }
swp-calendar-header[data-levels="team resource date"] > swp-day-header { grid-row: 3; }

swp-day-header,
swp-resource-header,
swp-team-header {
  padding: 8px;
  text-align: center;
  border-right: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

swp-team-header {
  background: #e3f2fd;
  color: #1565c0;
  font-weight: 500;
}

swp-resource-header {
  background: #fafafa;
  font-size: 13px;
}

swp-day-name {
  display: block;
  font-size: 11px;
  color: var(--color-text-secondary);
  text-transform: uppercase;
}

swp-day-date {
  display: block;
  font-size: 24px;
  font-weight: 300;
}

/* Scrollable content */
swp-scrollable-content {
  display: block;
  overflow: auto;
}

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

/* Timelinjer via ::after */
swp-time-grid::after {
  content: '';
  position: absolute;
  inset: 0;
  z-index: 2;
  background-image: repeating-linear-gradient(
    to bottom,
    transparent,
    transparent calc(var(--hour-height) - 1px),
    var(--color-hour-line) calc(var(--hour-height) - 1px),
    var(--color-hour-line) var(--hour-height)
  );
  pointer-events: none;
}

/* Kvarterlinjer - 3 linjer per time (15, 30, 45 min), ikke ved timegrænsen */
swp-grid-lines {
  display: block;
  position: absolute;
  inset: 0;
  z-index: 1;
  background-image: repeating-linear-gradient(
    to bottom,
    transparent 0,
    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),
    transparent calc(var(--hour-height) / 4),
    transparent calc(var(--hour-height) / 2 - 1px),
    var(--color-grid-line-light) calc(var(--hour-height) / 2 - 1px),
    var(--color-grid-line-light) calc(var(--hour-height) / 2),
    transparent calc(var(--hour-height) / 2),
    transparent calc(var(--hour-height) * 3 / 4 - 1px),
    var(--color-grid-line-light) calc(var(--hour-height) * 3 / 4 - 1px),
    var(--color-grid-line-light) calc(var(--hour-height) * 3 / 4),
    transparent calc(var(--hour-height) * 3 / 4),
    transparent var(--hour-height)
  );
}

swp-day-columns {
  position: absolute;
  inset: 0;
  display: grid;
  grid-template-columns: repeat(var(--grid-columns), 1fr);
}

swp-day-column {
  position: relative;
  border-right: 1px solid var(--color-border);
}

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

/* Events */
swp-event {
  position: absolute;
  background: var(--color-primary);
  color: white;
  border-radius: 4px;
  padding: 4px 6px;
  font-size: 12px;
  overflow: hidden;
}

swp-event-time {
  display: block;
  font-size: 10px;
  opacity: 0.9;
}

swp-event-title {
  display: block;
  font-weight: 500;
}