@use '../../styles/mixins' as *;

.tl-timeline-item {
  position: relative;
  display: grid;
  grid-template-columns: auto 1fr;
  gap: var(--spacing-lg, 1.5rem);
  padding: var(--spacing-md, 1rem) 0;

  &::after {
    @include tl-connector(solid);
    left: calc(var(--tl-marker-size-md) / 2 - var(--tl-line-width) / 2);
    top: calc(var(--tl-marker-size-md) + var(--spacing-md, 1rem));
    bottom: calc(-1 * var(--spacing-md, 1rem));
  }

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

  &--animate {
    animation: tl-slide-in 300ms ease-out;
  }

  &__marker {
    @include tl-marker(md);
  }

  &__content {
    min-width: 0;
  }

  &__card {
    background: var(--color-bg-primary, #ffffff);
    border: 1px solid var(--color-border-primary, #e5e7eb);
    border-radius: var(--radius-lg, 0.5rem);
    padding: var(--spacing-lg, 1.5rem);
    transition: all var(--transition-normal, 200ms ease);
  }

  &__header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--spacing-sm, 0.75rem);
    gap: var(--spacing-md, 1rem);
  }

  &__title {
    margin: 0;
    font-size: var(--font-size-base, 1rem);
    font-weight: var(--font-weight-semibold, 600);
    color: var(--color-text-primary, #111827);
    line-height: var(--line-height-snug, 1.375);
    letter-spacing: var(--letter-spacing-tight, -0.025em);
  }

  &__time {
    font-size: var(--font-size-xs, 0.75rem);
    color: var(--color-text-muted, #9ca3af);
    white-space: nowrap;
    font-weight: var(--font-weight-medium, 500);
  }

  &__description {
    margin: var(--spacing-xs, 0.5rem) 0 0;
    font-size: var(--font-size-sm, 0.875rem);
    color: var(--color-text-secondary, #6b7280);
    line-height: var(--line-height-relaxed, 1.625);
  }

  &__tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-xs, 0.5rem);
    margin-top: var(--spacing-md, 1rem);
  }

  &__category {
    margin-top: var(--spacing-md, 1rem);
  }

  // Status colors
  &--completed .tl-timeline-item__marker {
    background: var(--tl-status-completed);
  }

  &--active .tl-timeline-item__marker {
    background: var(--tl-status-active);
  }

  &--pending .tl-timeline-item__marker {
    background: var(--tl-status-pending);
  }

  &--error .tl-timeline-item__marker {
    background: var(--tl-status-error);
  }

  &--warning .tl-timeline-item__marker {
    background: var(--tl-status-warning);
  }

  // Alternating layout
  .tl-timeline-item--alternating &:nth-child(even) {
    grid-template-columns: 1fr auto;
    direction: rtl;

    .tl-timeline-item__content {
      direction: ltr;
    }
  }
}

@keyframes tl-slide-in {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}