/* ==========================================================================
   Timeline de vínculos (#302) — memória de cálculo ("quadrinhos")
   Marcas finas, hairlines recessivas, cores por regime validadas contra as
   duas superfícies (ver --timeline-rpps/--timeline-rgps abaixo). Hachura =
   estado (descartado/concomitância), nunca decoração.
   ========================================================================== */

.ia-timeline {
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
  /* Par de regime validado (six-checks do dataviz, dark #1F2933 e light
     #FAF6EE): CVD ΔE ≥ 18, visão normal ≥ 19, contraste ≥ 3:1. O RPPS segue
     o azul do tema; o RGPS usa o degrau teal fixo — os *-soft e o ciano dos
     badges reprovam no piso de separação quando viram barra. */
  --timeline-rpps: var(--color-blue);
  --timeline-rgps: #0d9488;
}

/* --- legenda ----------------------------------------------------------- */

.ia-timeline-legenda {
  display: flex;
  flex-wrap: wrap;
  gap: 0.3rem 0.9rem;
  font-size: 0.75rem;
  color: var(--text-secondary);
}

.ia-timeline-legenda-item {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
}

.ia-timeline-swatch {
  display: inline-block;
  width: 14px;
  height: 8px;
  border-radius: 2px;
}

.ia-timeline-swatch--rpps { background: var(--timeline-rpps); }
.ia-timeline-swatch--rgps { background: var(--timeline-rgps); }
.ia-timeline-swatch--cadastro { background: var(--color-gray-soft); }
.ia-timeline-swatch--inutilizado { background: var(--color-gray-soft); opacity: 0.45; }

.ia-timeline-swatch--descarte {
  background: repeating-linear-gradient(
    45deg,
    color-mix(in srgb, var(--color-gray) 45%, transparent) 0 3px,
    transparent 3px 6px
  );
}

.ia-timeline-swatch--conc {
  background: repeating-linear-gradient(
    135deg,
    color-mix(in srgb, var(--color-amber) 55%, transparent) 0 3px,
    transparent 3px 6px
  );
}

.ia-timeline-swatch--corte {
  width: 0;
  height: 12px;
  border-radius: 0;
  border-left: 2px dashed var(--color-red);
}

/* --- grade: rótulo | trilha | ações ------------------------------------ */

.ia-timeline-corpo {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.ia-timeline-row {
  display: grid;
  grid-template-columns: minmax(190px, 250px) 1fr max-content;
  gap: 0.6rem;
  align-items: center;
}

.ia-timeline-row--eixo {
  align-items: end;
}

.ia-timeline-label {
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
  min-width: 0;
  padding: 0.15rem 0;
}

.ia-timeline-empresa {
  font-size: 0.8rem;
  color: var(--text-primary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.is-inutilizado .ia-timeline-empresa {
  color: var(--text-secondary);
  text-decoration: line-through;
}

.ia-timeline-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.2rem;
}

.ia-timeline-meta .ia-badge {
  font-size: 0.6rem;
  padding: 0.05rem 0.4rem;
}

/* --- trilha e marcas ---------------------------------------------------- */

.ia-timeline-track {
  position: relative;
  height: 22px;
  background: var(--bg-elevated);
  border-radius: 4px;
  overflow: hidden;
}

.ia-timeline-row--eixo .ia-timeline-track {
  height: 1.5rem;
  background: transparent;
  overflow: visible;
}

.ia-timeline-gridline {
  position: absolute;
  top: 0;
  bottom: 0;
  width: 1px;
  background: var(--border-color);
  opacity: 0.55;
}

.ia-timeline-corte {
  position: absolute;
  top: 0;
  bottom: 0;
  width: 0;
  border-left: 2px dashed var(--color-red);
}

.ia-timeline-ano {
  position: absolute;
  bottom: 0;
  transform: translateX(-50%);
  font-size: 0.68rem;
  font-family: var(--font-mono);
  color: var(--text-secondary);
}

.ia-timeline-bar {
  position: absolute;
  top: 4px;
  bottom: 4px;
  min-width: 3px;
  border-radius: 3px;
}

.ia-timeline-bar--rpps { background: var(--timeline-rpps); }
.ia-timeline-bar--rgps { background: var(--timeline-rgps); }
.ia-timeline-bar--cadastro { background: var(--color-gray-soft); }
.ia-timeline-bar--inutilizado { background: var(--color-gray-soft); opacity: 0.45; }

.ia-timeline-bar--descarte {
  background: repeating-linear-gradient(
    45deg,
    color-mix(in srgb, var(--color-gray) 40%, transparent) 0 3px,
    transparent 3px 6px
  );
}

.ia-timeline-conc {
  position: absolute;
  top: 0;
  bottom: 0;
  min-width: 3px;
  border-radius: 3px;
  background: repeating-linear-gradient(
    135deg,
    color-mix(in srgb, var(--color-amber) 50%, transparent) 0 3px,
    transparent 3px 6px
  );
}

.ia-timeline-conc.is-ajustada {
  background: repeating-linear-gradient(
    135deg,
    color-mix(in srgb, var(--color-green) 50%, transparent) 0 3px,
    transparent 3px 6px
  );
}

/* --- ações -------------------------------------------------------------- */

.ia-timeline-acoes {
  display: flex;
  gap: 0.25rem;
}

.ia-timeline-acoes form {
  margin: 0;
}

.ia-timeline-acoes .ia-btn {
  padding: 0.15rem 0.45rem;
  font-size: 0.7rem;
  line-height: 1;
}

/* --- telas estreitas ----------------------------------------------------- */

@media (max-width: 900px) {
  .ia-timeline-row {
    grid-template-columns: minmax(130px, 170px) 1fr max-content;
    gap: 0.4rem;
  }
}