/* ===== Timeboard Styles (36-row, 30-min grid) ===== */

.timeboard {
  padding: var(--space-4);
  min-width: 400px;
}

/* Group header: Plan / Actual */
.timeboard__group-header {
  display: grid;
  grid-template-columns: 60px 1fr 1fr;
  gap: 0;
  position: sticky;
  top: 0;
  z-index: 3;
  background: var(--color-bg);
}

.timeboard__group-label {
  padding: var(--space-2) var(--space-3);
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-bold);
  color: var(--color-text-secondary);
  text-transform: uppercase;
  letter-spacing: 1px;
  text-align: center;
  background: var(--color-bg);
}

.timeboard__group-label--plan {
  background: var(--color-primary-light);
  border: 1px solid var(--color-border);
  border-right: 2px solid var(--color-border);
  border-radius: var(--radius-sm) 0 0 0;
  color: var(--color-primary);
}

.timeboard__group-label--actual {
  background: var(--color-success-light);
  border: 1px solid var(--color-border);
  border-left: none;
  border-radius: 0 var(--radius-sm) 0 0;
  color: var(--color-success);
}

/* 36-row grid: one row per 30-min slot */
.timeboard__grid {
  display: grid;
  grid-template-columns: 60px 1fr 1fr;
  grid-template-rows: repeat(36, 20px);
  gap: 0;
  border-left: 1px solid var(--color-border);
  border-right: 1px solid var(--color-border);
  position: relative;
  isolation: isolate;
}

/* Time Label — spans 2 rows (1 hour) */
.timeboard__time {
  grid-row: span 2;
  padding: var(--space-1) var(--space-2);
  font-size: var(--font-size-xs);
  color: var(--color-text-secondary);
  font-variant-numeric: tabular-nums;
  border-bottom: 1px solid var(--color-border);
  display: flex;
  align-items: flex-start;
  justify-content: flex-end;
  background: var(--color-bg);
  min-height: 40px;
  font-weight: var(--font-weight-medium);
}

/* Cells (30-min each) */
.timeboard__cell {
  min-height: 20px;
  border-right: 1px solid var(--color-border-light);
  position: relative;
  z-index: 1;
  transition: background var(--transition-fast);
  cursor: default;
}

/* Half-hour boundary (:00 row bottom) — lighter */
.timeboard__cell--half-end {
  border-bottom: 1px dashed var(--color-border-light);
}

/* Hour boundary (:30 row bottom) — solid */
.timeboard__cell--hour-end {
  border-bottom: 1px solid var(--color-border);
}

/* Plan column */
.timeboard__cell--plan {
  cursor: pointer;
  border-right: 2px solid var(--color-border);
}

.timeboard__cell--plan.drag-over {
  background: var(--color-primary-light);
  outline: 2px dashed var(--color-primary);
  outline-offset: -2px;
}

.timeboard__cell--actual {
  cursor: pointer;
}

/* Slot Block base */
.slot-block {
  position: relative;
  border-radius: var(--radius-sm);
  padding: 2px var(--space-1);
  font-size: var(--font-size-xs);
  color: var(--color-text-inverse);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  display: flex;
  align-items: flex-start;
  justify-content: flex-start;
  gap: 4px;
  cursor: pointer;
  transition: opacity var(--transition-fast);
}

.slot-block:hover {
  opacity: 0.85;
}

.slot-block__title {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  font-weight: var(--font-weight-medium);
}

.slot-block__remove {
  width: 14px;
  height: 14px;
  display: none;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: rgba(0, 0, 0, 0.2);
  color: white;
  font-size: 10px;
  flex-shrink: 0;
  cursor: pointer;
}

.slot-block:hover .slot-block__remove {
  display: flex;
}

/* Overlay containers for merged blocks */
.timeboard__overlay {
  grid-row: 1 / -1;
  grid-column: 2;
  position: relative;
  pointer-events: none;
  z-index: 2;
}

.timeboard__overlay--actual {
  grid-column: 3;
}

.timeboard__overlay .slot-block {
  pointer-events: auto;
  position: absolute;
  box-sizing: border-box;
  margin: 0;
}

/* Current time indicator */
.timeboard__now-line {
  position: absolute;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--color-danger);
  z-index: -1;
  pointer-events: none;
}

.timeboard__now-line::before {
  content: "";
  position: absolute;
  left: -4px;
  top: -3px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--color-danger);
}

/* Empty timeboard state */
.timeboard__empty-overlay {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  text-align: center;
  color: var(--color-text-tertiary);
  font-size: var(--font-size-sm);
  pointer-events: none;
}

/* Time input popup */
.time-input-popup {
  position: absolute;
  z-index: var(--z-tooltip);
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  padding: var(--space-3);
  min-width: 200px;
}

.time-input-popup__row {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  margin-bottom: var(--space-2);
}

.time-input-popup__label {
  font-size: var(--font-size-xs);
  color: var(--color-text-secondary);
  width: 40px;
  flex-shrink: 0;
}

.time-input-popup__input {
  width: 120px;
  padding: var(--space-1) var(--space-2);
  font-size: var(--font-size-sm);
  text-align: center;
}

.time-input-popup__actions {
  display: flex;
  gap: var(--space-2);
  justify-content: flex-end;
  margin-top: var(--space-2);
  padding-top: var(--space-2);
  border-top: 1px solid var(--color-border-light);
}