/* ==========================================================================
   Fluxo operacional — timeline horizontal (história)
   ========================================================================== */

.op-flow {
  overflow: hidden;
}

.op-flow .section-header p {
  color: rgba(255, 255, 255, 0.72);
  width: 100%;
  max-width: none;
  margin-inline: auto;
}

.op-flow .section-header.center .section-label::before {
  margin-inline: auto;
}

.op-flow__stage {
  margin-top: clamp(1.25rem, 3vw, 2rem);
}

/* ─── Trilha horizontal ─── */

.op-flow__track-wrap {
  position: relative;
  margin-bottom: clamp(1.25rem, 3vw, 1.75rem);
}

.op-flow__track {
  display: flex;
  gap: 0.5rem;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  scrollbar-width: none;
  -ms-overflow-style: none;
  padding: 0.5rem 0.25rem 0.75rem;
  position: relative;
  z-index: 1;
  isolation: isolate;
}

.op-flow__track::-webkit-scrollbar {
  display: none;
}

@media (min-width: 1024px) {
  .op-flow__track {
    justify-content: space-between;
    overflow-x: visible;
    gap: 0;
    padding-inline: 0;
  }
}

.op-flow__line {
  position: absolute;
  left: 1.25rem;
  right: 1.25rem;
  /* centro vertical dos anéis: padding trilha + padding nó + metade do anel */
  top: calc(0.5rem + 0.25rem + 1.25rem);
  height: 2px;
  transform: translateY(-50%);
  background: rgba(255, 255, 255, 0.14);
  border-radius: 2px;
  z-index: 0;
  pointer-events: none;
}

@media (min-width: 1024px) {
  .op-flow__line {
    /* centros do 1º e 6º nó com space-between (6 colunas) */
    left: calc(100% / 12);
    right: calc(100% / 12);
  }
}

.op-flow__line-fill {
  display: block;
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, var(--teal), rgba(46, 139, 122, 0.65));
  border-radius: 2px;
  transition: width 0.65s cubic-bezier(0.22, 1, 0.36, 1);
}

@media (max-width: 1023px) {
  .op-flow__line {
    display: none;
  }

  .op-flow__track {
    touch-action: pan-x pan-y;
    -webkit-overflow-scrolling: touch;
  }

  .op-flow__story {
    touch-action: pan-y;
  }
}

/* ─── Nós da timeline ─── */

.op-flow__node {
  flex: 0 0 auto;
  width: min(108px, 22vw);
  scroll-snap-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  padding: 0.25rem;
  border: none;
  background: transparent;
  cursor: pointer;
  text-align: center;
  transition: transform 0.25s ease;
  position: relative;
  z-index: 1;
}

.op-flow__node:not(.is-active):not(.is-done) .op-flow__node-ring {
  filter: brightness(0.82);
  border-color: rgba(255, 255, 255, 0.18);
}

.op-flow__node:hover,
.op-flow__node:focus-visible {
  outline: none;
}

.op-flow__node:hover:not(.is-active) .op-flow__node-ring {
  filter: brightness(0.95);
  border-color: rgba(255, 255, 255, 0.32);
}

.op-flow__node.is-active {
  transform: translateY(-2px);
}

@media (min-width: 1024px) {
  .op-flow__node {
    flex: 1 1 0;
    width: auto;
    max-width: 120px;
  }
}

.op-flow__node-ring {
  position: relative;
  z-index: 2;
  width: 2.5rem;
  height: 2.5rem;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--navy);
  border: 2px solid rgba(255, 255, 255, 0.28);
  box-shadow: 0 0 0 3px var(--navy);
  transition:
    background 0.35s ease,
    border-color 0.35s ease,
    box-shadow 0.35s ease,
    transform 0.35s ease;
}

.op-flow__node.is-active .op-flow__node-ring {
  background: linear-gradient(135deg, var(--teal), var(--blue));
  border-color: rgba(255, 255, 255, 0.45);
  box-shadow: 0 0 0 4px var(--navy), 0 0 0 6px rgba(46, 139, 122, 0.22), 0 8px 24px rgba(0, 0, 0, 0.25);
  transform: scale(1.08);
  filter: none;
}

.op-flow__node.is-done .op-flow__node-ring {
  background: #1a5c52;
  border-color: rgba(46, 139, 122, 0.75);
  box-shadow: 0 0 0 3px var(--navy);
  filter: none;
}

.op-flow__node-num {
  position: relative;
  z-index: 1;
  font-family: var(--font-display);
  font-size: 0.8125rem;
  font-weight: 700;
  color: var(--white);
  line-height: 1;
}

.op-flow__node-label {
  font-family: var(--font-display);
  font-size: 0.6875rem;
  font-weight: 600;
  line-height: 1.3;
  color: rgba(255, 255, 255, 0.5);
  transition: color 0.25s ease;
}

.op-flow__node:hover .op-flow__node-label,
.op-flow__node.is-done .op-flow__node-label {
  color: rgba(255, 255, 255, 0.72);
}

.op-flow__node.is-active .op-flow__node-label {
  color: var(--white);
}

/* ─── Painel da história ─── */

.op-flow__story {
  position: relative;
  min-height: clamp(9rem, 22vw, 11rem);
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-lg);
  padding: clamp(1.25rem, 3vw, 1.75rem) clamp(1.25rem, 3vw, 2rem);
  overflow: hidden;
}

.op-flow__story::before {
  content: '';
  position: absolute;
  inset: 0 auto 0 0;
  width: 3px;
  background: linear-gradient(to bottom, var(--teal), var(--blue));
  border-radius: var(--radius-lg) 0 0 var(--radius-lg);
  opacity: 0;
  transition: opacity 0.35s ease;
}

.op-flow__story.is-animating::before {
  opacity: 1;
}

.op-flow__panel {
  position: absolute;
  inset: clamp(1.25rem, 3vw, 1.75rem) clamp(1.25rem, 3vw, 2rem);
  width: auto;
  opacity: 0;
  transform: translateX(24px);
  pointer-events: none;
  transition:
    opacity 0.45s cubic-bezier(0.22, 1, 0.36, 1),
    transform 0.45s cubic-bezier(0.22, 1, 0.36, 1);
}

.op-flow__panel.is-active {
  position: relative;
  inset: auto;
  width: 100%;
  opacity: 1;
  transform: translateX(0);
  pointer-events: auto;
}

.op-flow__panel.is-exiting {
  opacity: 0;
  transform: translateX(-24px);
}

.op-flow__panel-step {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  font-family: var(--font-display);
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--teal);
  margin-bottom: 0.5rem;
}

.op-flow__panel-step svg {
  width: 14px;
  height: 14px;
}

.op-flow__panel h3 {
  font-size: clamp(1.0625rem, 2.2vw, 1.25rem);
  margin-bottom: 0.625rem;
  color: var(--white);
}

.op-flow__panel p {
  font-size: var(--text-body);
  line-height: 1.6;
  color: rgba(255, 255, 255, 0.78);
  max-width: none;
  width: 100%;
}

/* ─── Controles ─── */

.op-flow__controls {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  margin-top: 1.125rem;
}

.op-flow__btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 2.25rem;
  height: 2.25rem;
  border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, 0.22);
  background: rgba(255, 255, 255, 0.06);
  color: var(--white);
  transition: background 0.2s ease, border-color 0.2s ease;
}

.op-flow__btn:hover,
.op-flow__btn:focus-visible {
  background: rgba(255, 255, 255, 0.14);
  border-color: rgba(255, 255, 255, 0.35);
  outline: none;
}

.op-flow__btn svg {
  width: 16px;
  height: 16px;
}

.op-flow__progress {
  display: flex;
  align-items: center;
  gap: 0.375rem;
}

.op-flow__dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.25);
  border: none;
  padding: 0;
  cursor: pointer;
  transition: background 0.25s ease, transform 0.25s ease;
}

.op-flow__dot.is-active {
  background: var(--teal);
  transform: scale(1.35);
}

.op-flow__dot:hover,
.op-flow__dot:focus-visible {
  background: rgba(46, 139, 122, 0.75);
  outline: none;
}

.op-flow__autoplay {
  font-size: 0.6875rem;
  color: rgba(255, 255, 255, 0.45);
  margin-top: 0.625rem;
  text-align: center;
}

@media (prefers-reduced-motion: reduce) {
  .op-flow__line-fill,
  .op-flow__panel,
  .op-flow__node,
  .op-flow__node-ring {
    transition: none;
  }

  .op-flow__panel {
    transform: none;
  }

  .op-flow__autoplay {
    display: none;
  }
}