/* V2 Base - Shared variables */

:root {
  /* Grid measurements */
  --hour-height: 64px;
  --time-axis-width: 60px;
  --grid-columns: 7;
  --day-column-min-width: 200px;
  --day-start-hour: 6;
  --day-end-hour: 18;
  --header-height: 70px;

  /* Colors - UI */
  --color-border: #e0e0e0;
  --color-surface: #fff;
  --color-background: #f5f5f5;
  --color-background-hover: #f0f0f0;
  --color-background-alt: #fafafa;
  --color-text: #333333;
  --color-text-secondary: #666;
  --color-primary: #1976d2;
  --color-team-bg: #e3f2fd;
  --color-team-text: #1565c0;

  /* Colors - Grid */
  --color-hour-line: rgba(0, 0, 0, 0.2);
  --color-grid-line-light: rgba(0, 0, 0, 0.05);
  --color-unavailable: rgba(0, 0, 0, 0.02);

  /* Named color palette for events (fra V1) */
  --b-color-red: #e53935;
  --b-color-pink: #d81b60;
  --b-color-magenta: #c200c2;
  --b-color-purple: #8e24aa;
  --b-color-violet: #5e35b1;
  --b-color-deep-purple: #4527a0;
  --b-color-indigo: #3949ab;
  --b-color-blue: #1e88e5;
  --b-color-light-blue: #03a9f4;
  --b-color-cyan: #3bc9db;
  --b-color-teal: #00897b;
  --b-color-green: #43a047;
  --b-color-light-green: #8bc34a;
  --b-color-lime: #c0ca33;
  --b-color-yellow: #fdd835;
  --b-color-amber: #ffb300;
  --b-color-orange: #fb8c00;
  --b-color-deep-orange: #f4511e;

  /* Base mix for color-mix() function */
  --b-mix: #fff;

  /* Shadows */
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.1);
  --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);

  /* Transitions */
  --transition-fast: 150ms ease;
}

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

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background: var(--color-background);
}

/* V2 Layout - Calendar structure, grid, navigation */

.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: 12px;
  padding: 8px 16px;
  border-bottom: 1px solid var(--color-border);
  align-items: center;
  font-size: 13px;
}

/* View switcher - small chips */
swp-view-switcher {
  display: flex;
  gap: 4px;
  background: var(--color-background-alt);
  padding: 3px;
  border-radius: 6px;
}

.view-chip {
  padding: 4px 10px;
  border: none;
  border-radius: 4px;
  cursor: pointer;
  background: transparent;
  color: var(--color-text-secondary);
  font-size: 12px;
  font-weight: 500;
  transition: all 0.15s ease;

  &:hover {
    background: var(--color-surface);
    color: var(--color-text);
  }

  &.active {
    background: var(--color-surface);
    color: var(--color-text);
    box-shadow: 0 1px 2px rgba(0,0,0,0.1);
  }
}

/* Workweek dropdown */
.workweek-dropdown {
  padding: 4px 8px;
  border: 1px solid var(--color-border);
  border-radius: 4px;
  background: var(--color-surface);
  font-size: 12px;
  cursor: pointer;

  &:hover { border-color: var(--color-text-secondary); }
  &:focus { outline: 2px solid var(--color-primary); outline-offset: 1px; }
}

/* Resource selector (picker view) */
swp-resource-selector {
  &.hidden { display: none; }

  fieldset {
    border: 1px solid var(--color-border);
    border-radius: 6px;
    padding: 6px 12px;
    margin: 0;
  }

  legend {
    font-size: 11px;
    font-weight: 500;
    color: var(--color-text-secondary);
    padding: 0 6px;
  }

  .resource-checkboxes {
    display: flex;
    flex-wrap: wrap;
    gap: 4px 16px;
  }

  label {
    display: flex;
    align-items: center;
    gap: 4px;
    font-size: 12px;
    cursor: pointer;
    white-space: nowrap;

    &:hover { color: var(--color-primary); }
  }

  input[type="checkbox"] {
    width: 14px;
    height: 14px;
    cursor: pointer;
  }
}

/* Navigation group */
swp-nav-group {
  display: flex;
  gap: 2px;
}

swp-nav-button {
  padding: 6px 12px;
  border: 1px solid var(--color-border);
  border-radius: 4px;
  cursor: pointer;
  background: var(--color-surface);
  font-size: 12px;

  &:hover { background: var(--color-background-hover); }

  &.btn-small {
    padding: 4px 8px;
    font-size: 11px;
  }
}

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

  swp-week-number {
    font-weight: 600;
    font-size: 12px;
    display: block;
  }

  swp-date-range {
    font-size: 11px;
    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: auto 1fr;
  border-right: 1px solid var(--color-border);
  background: var(--color-surface);
  overflow: hidden;
  user-select: none;
}

swp-header-spacer {
  border-bottom: 1px solid var(--color-border);
  background: var(--color-surface);
  z-index: 1;
}

swp-header-drawer {
  display: grid;
  grid-template-columns: subgrid;
  grid-column: 1 / -1;
  grid-row: 2;
  overflow: hidden;
  background: var(--color-background-alt);
  border-bottom: 1px solid var(--color-border);
}

swp-time-axis-content {
  display: flex;
  flex-direction: column;
  position: relative;
}

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

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

  &:first-child::after {
    display: none;
  }
}

/* Grid container */
swp-grid-container {
  grid-column: 2;
  grid-row: 1 / 3;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  grid-template-rows: subgrid;
  overflow: hidden;
}

/* Viewport/Track for slide animation */
swp-header-viewport {
  display: grid;
  grid-template-columns: repeat(var(--grid-columns), minmax(var(--day-column-min-width), 1fr));
  grid-template-rows: auto auto;
  min-width: calc(var(--grid-columns) * var(--day-column-min-width));
  overflow-y: scroll;
  overflow-x: hidden;

  &::-webkit-scrollbar { background: transparent; }
  &::-webkit-scrollbar-thumb { background: transparent; }
}

swp-content-viewport {
  overflow: hidden;
  min-height: 0;
  width: 100%;
}

swp-header-track {
  display: grid;
  grid-template-columns: subgrid;
  grid-column: 1 / -1;
  grid-row: 1;
}

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

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

/* Header */
swp-calendar-header {
  display: grid;
  grid-template-columns: subgrid;
  grid-column: 1 / -1;
  grid-auto-rows: auto;
  background: var(--color-surface);

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

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

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

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

swp-day-header,
swp-resource-header,
swp-team-header,
swp-department-header {
  padding: 8px;
  text-align: center;
  border-right: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
  user-select: none;
}

swp-team-header {
  background: var(--color-team-bg);
  color: var(--color-team-text);
  font-weight: 500;
  grid-column: span var(--team-cols, 1);
}

swp-department-header {
  background: var(--color-team-bg);
  color: var(--color-team-text);
  font-weight: 500;
  grid-column: span var(--department-cols, 1);
}

swp-resource-header {
  background: var(--color-background-alt);
  font-size: 13px;
}

swp-day-header {
  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;
  }

  &[data-hidden="true"] {
    display: none;
  }
}

/* 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));
  min-width: calc(var(--grid-columns) * var(--day-column-min-width));

  /* Timelinjer */
  &::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) */
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), minmax(var(--day-column-min-width), 1fr));
  min-width: calc(var(--grid-columns) * var(--day-column-min-width));
}

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

swp-events-layer {
  position: absolute;
  inset: 0;
  z-index: 10;
}

/* Unavailable time zones (outside working hours) */
swp-unavailable-layer {
  position: absolute;
  inset: 0;
  z-index: 5;
  pointer-events: none;
}

swp-unavailable-zone {
  position: absolute;
  left: 0;
  right: 0;
  background: var(--color-unavailable, rgba(0, 0, 0, 0.05));
  pointer-events: none;
}

/* V2 Events - Event styling (from V1 calendar-events-css.css) */

/* Event base styles */
swp-day-columns swp-event {
  --b-text: var(--color-text);

  position: absolute;
  border-radius: 3px;
  overflow: hidden;
  cursor: pointer;
  transition: background-color 200ms ease, box-shadow 150ms ease, transform 150ms ease;
  z-index: 10;
  left: 2px;
  right: 2px;
  font-size: 12px;
  padding: 4px 6px;
  user-select: none;

  /* Color system using color-mix() */
  background-color: color-mix(in srgb, var(--b-primary) 10%, var(--b-mix));
  color: var(--b-text);
  border-left: 4px solid var(--b-primary);

  /* Enable container queries for responsive layout */
  container-type: size;
  container-name: event;

  /* CSS Grid layout for time, title, and description */
  display: grid;
  grid-template-columns: auto 1fr;
  grid-template-rows: auto 1fr;
  gap: 2px 4px;
  align-items: start;

  /* Dragging state */
  &.dragging {
    position: absolute;
    z-index: 999999;
    left: 2px;
    right: 2px;
    width: auto;
    cursor: grabbing;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
  }

  /* Ghost clone (stays in original position during drag) */
  &.drag-ghost {
    opacity: 0.3;
    pointer-events: none;
  }

  /* Hover state */
  &:hover {
    background-color: color-mix(in srgb, var(--b-primary) 15%, var(--b-mix));
  }
}

swp-day-columns swp-event:hover {
  z-index: 20;
}

/* Resize handle - actual draggable element */
swp-resize-handle {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 15px;
  cursor: ns-resize;
  z-index: 25;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity 150ms ease;
}

/* Show handle on hover */
swp-day-columns swp-event:hover swp-resize-handle {
  opacity: 1;
}

/* Handle visual indicator (grip lines) */
swp-resize-handle::before {
  content: '';
  width: 30px;
  height: 4px;
  background: rgba(255, 255, 255, 0.9);
  border-radius: 2px;
  box-shadow:
    0 -2px 0 rgba(255, 255, 255, 0.9),
    0 2px 0 rgba(255, 255, 255, 0.9),
    0 0 4px rgba(0, 0, 0, 0.2);
}

/* Global resizing state */
.swp--resizing {
  user-select: none !important;
  cursor: ns-resize !important;
}

.swp--resizing * {
  cursor: ns-resize !important;
}

swp-day-columns swp-event-time {
  grid-column: 1;
  grid-row: 1;
  font-size: 0.875rem;
  font-weight: 500;
  white-space: nowrap;
}

swp-day-columns swp-event-title {
  grid-column: 2;
  grid-row: 1;
  font-size: 0.875rem;
  font-weight: 500;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

swp-day-columns swp-event-description {
  grid-column: 1 / -1;
  grid-row: 2;
  display: block;
  font-size: 0.875rem;
  opacity: 0.8;
  line-height: 1.3;
  overflow: hidden;
  word-wrap: break-word;

  /* Ensure description fills available height for gradient effect */
  min-height: 100%;
  align-self: stretch;

  /* Fade-out effect for long descriptions */
  -webkit-mask-image: linear-gradient(to bottom, black 70%, transparent 100%);
  mask-image: linear-gradient(to bottom, black 70%, transparent 100%);
}

/* Container queries for height-based layout */

/* Hide description when event is too short (< 30px) */
@container event (height < 30px) {
  swp-day-columns swp-event-description {
    display: none;
  }
}

/* Full description for tall events (>= 100px) */
@container event (height >= 100px) {
  swp-day-columns swp-event-description {
    max-height: none;
  }
}

/* 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;
  user-select: none;

  /* Color system using color-mix() */
  --b-text: var(--color-text);
  background-color: color-mix(in srgb, var(--b-primary) 10%, var(--b-mix));
  color: var(--b-text);
  border-left: 4px solid var(--b-primary);

  &:hover {
    background-color: color-mix(in srgb, var(--b-primary) 15%, var(--b-mix));
  }

  /* Continuation indicators */
  &[data-continues-before="true"] {
    border-top-left-radius: 0;
    border-bottom-left-radius: 0;
    margin-left: 0;
    padding-left: 20px;

    &::before {
      content: '\25C0';
      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: '\25B6';
      position: absolute;
      right: 4px;
      opacity: 0.6;
      font-size: 0.75rem;
    }
  }

  &:hover {
    transform: translateY(-1px);
    box-shadow: var(--shadow-sm);
  }
}

/* All-day events */
swp-allday-event {
  --b-text: var(--color-text);
  background-color: color-mix(in srgb, var(--b-primary) 10%, var(--b-mix));
  color: var(--b-text);
  border-left: 4px solid var(--b-primary);
  cursor: pointer;
  transition: background-color 200ms ease;
  user-select: none;

  &:hover {
    background-color: color-mix(in srgb, var(--b-primary) 15%, var(--b-mix));
  }
}

/* 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;

  /* 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;
}

/* Shadow for stacked events (level 1+) */
swp-event[data-stack-link]:not([data-stack-link*='"stackLevel":0']),
swp-event-group[data-stack-link]:not([data-stack-link*='"stackLevel":0']) swp-event {
  box-shadow:
    0 -1px 2px rgba(0, 0, 0, 0.1),
    0 1px 2px rgba(0, 0, 0, 0.1);
}

/* 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;
}

/* Color utility classes */
.is-red { --b-primary: var(--b-color-red); }
.is-pink { --b-primary: var(--b-color-pink); }
.is-magenta { --b-primary: var(--b-color-magenta); }
.is-purple { --b-primary: var(--b-color-purple); }
.is-violet { --b-primary: var(--b-color-violet); }
.is-deep-purple { --b-primary: var(--b-color-deep-purple); }
.is-indigo { --b-primary: var(--b-color-indigo); }
.is-blue { --b-primary: var(--b-color-blue); }
.is-light-blue { --b-primary: var(--b-color-light-blue); }
.is-cyan { --b-primary: var(--b-color-cyan); }
.is-teal { --b-primary: var(--b-color-teal); }
.is-green { --b-primary: var(--b-color-green); }
.is-light-green { --b-primary: var(--b-color-light-green); }
.is-lime { --b-primary: var(--b-color-lime); }
.is-yellow { --b-primary: var(--b-color-yellow); }
.is-amber { --b-primary: var(--b-color-amber); }
.is-orange { --b-primary: var(--b-color-orange); }
.is-deep-orange { --b-primary: var(--b-color-deep-orange); }

/* Header drawer items */
swp-header-item {
  --b-text: var(--color-text);

  /* Positioneres via style.gridArea */
  height: 22px;
  margin: 1px 4px;
  padding: 2px 8px;
  border-radius: 3px;
  font-size: 0.75rem;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  display: flex;
  align-items: center;
  cursor: pointer;
  user-select: none;
  transition: background-color 200ms ease;

  /* Color system - inverted from swp-event */
  background-color: color-mix(in srgb, var(--b-primary) 15%, var(--b-mix));
  color: var(--b-text);

  &:hover {
    background-color: color-mix(in srgb, var(--b-primary) 10%, var(--b-mix));
  }

  /* Dragging state */
  &.dragging {
    opacity: 0.7;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
  }
}
