turbo-frame[data-controller~="task-completion"] {
  display: block;
  overflow-anchor: none;
}
/* A short katana cut only after the server confirms a task completion. It never changes row geometry. */
.task-title {
  position: relative;
  display: inline-block;
}

.task-cut {
  position: absolute;
  inset: 0.25rem 1rem 0.25rem 3.5rem;
  pointer-events: none;
}

.task-katana {
  position: absolute;
  top: 50%;
  left: 0;
  width: 8rem;
  height: 3rem;
  opacity: 0;
  filter: drop-shadow(0 1px 2px rgb(0 0 0 / 0.55)) drop-shadow(0 0 2px rgb(255 255 255 / 0.2));
}

.task-row.is-completing .task-katana {
  animation: task-katana-cut 440ms cubic-bezier(0.2, 0.8, 0.2, 1) both;
}

.task-row.is-completing .task-title::after {
  content: "";
  position: absolute;
  top: 53%;
  inset-inline: 0;
  height: 2px;
  background: var(--color-spark);
  box-shadow: 0 0 6px rgb(245 51 58 / 0.45);
  transform-origin: left;
  animation: task-cut-line 420ms ease-out both;
}

@keyframes task-katana-cut {
  0% { left: 0; opacity: 0; transform: translate(-35%, -45%) rotate(-24deg); }
  14% { opacity: 1; }
  70% { opacity: 1; }
  100% { left: 100%; opacity: 0; transform: translate(-75%, -55%) rotate(10deg); }
}

@keyframes task-cut-line {
  0%, 8% { opacity: 0; transform: scaleX(0); }
  20% { opacity: 1; }
  85% { opacity: 1; transform: scaleX(1); }
  100% { opacity: 0; transform: scaleX(1); }
}

@media (prefers-reduced-motion: reduce) {
  .task-katana,
  .task-row.is-completing .task-title::after {
    display: none;
    animation: none;
  }
}