/* Timeline tab — Gantt + month calendar (operations admin roadmap). */

.oar-timeline {
  display: flex;
  flex-direction: column;
  gap: var(--s-space-3);
  min-height: 0;
  flex: 1;
}

.oar-timeline__loading,
.oar-timeline__narrow-note {
  color: var(--s-color-fg-muted);
  font-size: var(--s-font-size-0);
  margin: 0;
}

.oar-timeline__header {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--s-space-3);
  justify-content: space-between;
}

.oar-timeline__view-toggle,
.oar-timeline__zoom-control {
  display: inline-flex;
  gap: var(--s-space-1);
  align-items: center;
}

.oar-timeline__toggle-btn,
.oar-timeline__zoom-btn,
.oar-timeline__cal-nav-btn {
  font: inherit;
  font-size: var(--s-font-size-0);
  padding: var(--s-space-1) var(--s-space-2);
  border-radius: var(--s-radius-sm);
  border: var(--s-border-thin) solid var(--s-color-border-subtle);
  background: var(--s-color-bg-panel);
  color: var(--s-color-fg-primary);
  cursor: pointer;
}

.oar-timeline__toggle-btn[aria-pressed="true"],
.oar-timeline__zoom-btn[aria-pressed="true"] {
  background: var(--s-color-bg-subtle);
  border-color: var(--s-color-border-strong);
  color: var(--s-color-fg-heading);
}

.oar-timeline__toggle-btn:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}

.oar-timeline__toggle-btn:focus-visible,
.oar-timeline__zoom-btn:focus-visible,
.oar-timeline__cal-nav-btn:focus-visible,
.oar-timeline__bar:focus-visible,
.oar-timeline__calendar-chip:focus-visible {
  outline: var(--s-border-base) solid var(--s-color-focus-border);
  outline-offset: var(--s-space-twohair);
}

.oar-timeline__main {
  flex: 1;
  min-height: 0;
  display: flex;
  flex-direction: column;
}

/* --- Gantt --- */

.oar-timeline__gantt {
  flex: 1;
  min-height: 0;
  display: flex;
  flex-direction: column;
}

.oar-timeline__gantt-scroll {
  overflow: auto;
  flex: 1;
  min-height: 0;
  border: var(--s-border-thin) solid var(--s-color-border-subtle);
  border-radius: var(--s-radius-md);
  background: var(--s-color-bg-panel);
}

.oar-timeline__time-axis {
  position: relative;
  height: var(--s-space-6);
  border-bottom: var(--s-border-thin) solid var(--s-color-border-subtle);
}

.oar-timeline__axis-label {
  position: absolute;
  top: var(--s-space-1);
  transform: translateX(calc(-1 * var(--s-space-1)));
  font-size: var(--s-font-size-0);
  color: var(--s-color-fg-muted);
  white-space: nowrap;
}

.oar-timeline__rows-wrap {
  position: relative;
}

.oar-timeline__workstream-rows {
  list-style: none;
  margin: 0;
  padding: 0;
}

.oar-timeline__row {
  display: grid;
  grid-template-columns: minmax(var(--s-space-7), var(--s-space-7)) 1fr;
  align-items: stretch;
  min-height: var(--s-space-10);
  border-bottom: var(--s-border-thin) solid var(--s-color-border-subtle);
}

.oar-timeline__row:last-child {
  border-bottom: none;
}

.oar-timeline__row-label {
  padding: var(--s-space-2) var(--s-space-3);
  font-size: var(--s-font-size-0);
  font-weight: var(--s-font-weight-medium);
  color: var(--s-color-fg-heading);
  border-right: var(--s-border-thin) solid var(--s-color-border-subtle);
  display: flex;
  align-items: center;
}

html[data-viewport^="tablet-"] .oar-timeline__row-label {
  font-size: var(--s-font-size-0);
}

.oar-timeline__row-track {
  position: relative;
  min-height: var(--s-space-10);
}

.oar-timeline__today-marker {
  position: absolute;
  top: 0;
  bottom: 0;
  width: var(--s-border-base);
  background: var(--s-color-status-info);
  pointer-events: none;
  z-index: 2;
}

.oar-timeline__bar {
  position: absolute;
  top: var(--s-space-2);
  bottom: var(--s-space-2);
  margin: 0;
  padding: 0 var(--s-space-2);
  border: none;
  border-radius: var(--s-radius-sm);
  cursor: pointer;
  text-align: left;
  overflow: hidden;
  z-index: 1;
}

.oar-timeline__bar-label {
  display: block;
  font-size: var(--s-font-size-0);
  color: var(--s-color-fg-primary);
  white-space: nowrap;
  text-overflow: ellipsis;
  overflow: hidden;
}

.oar-timeline__bar[data-phase="active"] {
  background: color-mix(in oklch, var(--s-color-status-info) 28%, var(--s-color-bg-panel));
  box-shadow: none;
}

.oar-timeline__bar[data-phase="ready"] {
  background: color-mix(in oklch, var(--s-color-status-info) 14%, var(--s-color-bg-panel));
  box-shadow: none;
}

.oar-timeline__bar[data-phase="shipped"] {
  background: color-mix(in oklch, var(--s-color-status-success) 18%, var(--s-color-bg-panel));
  box-shadow: none;
}

.oar-timeline__bar[data-phase="paused"] {
  background: var(--s-color-bg-subtle);
  box-shadow: none;
}

.oar-timeline__bar[data-phase="paused"] .oar-timeline__bar-label {
  color: var(--s-color-fg-muted);
}

.oar-timeline__bar[data-phase="blocked"] {
  background: color-mix(in oklch, var(--s-color-status-danger) 12%, var(--s-color-bg-panel));
  box-shadow: none;
}

.oar-timeline__bar[data-projected="true"] {
  opacity: 0.55;
}

.oar-timeline__bar[data-inflight="true"] {
  mask-image: linear-gradient(to right, black 72%, transparent 100%);
}

/* --- Calendar --- */

.oar-timeline__calendar {
  display: flex;
  flex-direction: column;
  gap: var(--s-space-3);
  flex: 1;
  min-height: 0;
}

.oar-timeline__calendar-nav {
  display: flex;
  align-items: center;
  gap: var(--s-space-3);
}

.oar-timeline__calendar-title {
  flex: 1;
  margin: 0;
  font-size: var(--s-font-size-1);
  font-weight: var(--s-font-weight-medium);
  color: var(--s-color-fg-heading);
  text-align: center;
}

.oar-timeline__calendar-grid {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: var(--s-space-1);
  flex: 1;
  min-height: 0;
}

.oar-timeline__calendar-weekday {
  font-size: var(--s-font-size-0);
  color: var(--s-color-fg-muted);
  text-align: center;
  padding: var(--s-space-1);
}

.oar-timeline__calendar-cell {
  min-height: var(--s-space-7);
  border: var(--s-border-thin) solid var(--s-color-border-subtle);
  border-radius: var(--s-radius-sm);
  padding: var(--s-space-1);
  background: var(--s-color-bg-panel);
  display: flex;
  flex-direction: column;
  gap: var(--s-space-1);
}

.oar-timeline__calendar-cell--pad {
  visibility: hidden;
  border-color: transparent;
  background: transparent;
}

.oar-timeline__calendar-today {
  box-shadow: none;
}

.oar-timeline__calendar-date {
  font-size: var(--s-font-size-0);
  color: var(--s-color-fg-muted);
}

.oar-timeline__calendar-chip {
  font: inherit;
  font-size: var(--s-font-size-0);
  text-align: left;
  padding: var(--s-space-0) var(--s-space-1);
  border: none;
  border-radius: var(--s-radius-sm);
  cursor: pointer;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 100%;
}

.oar-timeline__calendar-chip[data-phase="active"] {
  background: color-mix(in oklch, var(--s-color-status-info) 24%, transparent);
  color: var(--s-color-fg-primary);
}

.oar-timeline__calendar-chip[data-phase="ready"] {
  background: color-mix(in oklch, var(--s-color-status-info) 12%, transparent);
  color: var(--s-color-fg-primary);
}

.oar-timeline__calendar-chip[data-phase="shipped"] {
  background: color-mix(in oklch, var(--s-color-status-success) 16%, transparent);
  color: var(--s-color-fg-primary);
}

.oar-timeline__calendar-chip[data-phase="paused"] {
  background: var(--s-color-bg-subtle);
  color: var(--s-color-fg-muted);
}

.oar-timeline__calendar-chip[data-phase="blocked"] {
  background: color-mix(in oklch, var(--s-color-status-danger) 10%, transparent);
  color: var(--s-color-fg-primary);
}

html[data-viewport^="mobile-"] .oar-timeline__zoom-control {
  display: none;
}