/* ── Linha do Tempo Horizontal — Premium ───────────────────────────── */
.timeline {
  position: relative;
  padding: 24px 0 0;
}

.timeline__head {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 48px;
  flex-wrap: wrap;
}
.timeline__eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--eneva-teal-700);
  margin-bottom: 12px;
}
.timeline__eyebrow::before {
  content: '';
  width: 24px; height: 1px;
  background: var(--eneva-teal);
}
.timeline__title {
  margin: 0;
  font-size: 44px;
  font-weight: 800;
  letter-spacing: -0.025em;
  color: var(--ink-900);
  line-height: 1.05;
}
.timeline__title em {
  font-style: normal;
  background: linear-gradient(135deg, var(--eneva-teal) 0%, var(--eneva-teal-700) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
}
.timeline__subtitle {
  margin: 12px 0 0;
  font-size: 16px;
  color: var(--ink-500);
  max-width: 540px;
  line-height: 1.6;
}
.timeline__btn {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: #FFFFFF;
  border: 1px solid var(--ink-100);
  color: var(--ink-700);
  display: grid;
  place-items: center;
  transition: all 0.25s var(--ease);
  box-shadow: var(--shadow-md);
}
.timeline__btn:hover:not(:disabled) {
  border-color: var(--eneva-teal);
  color: var(--eneva-teal);
  box-shadow: var(--shadow-md);
}
.timeline__btn:disabled { opacity: 0.35; cursor: not-allowed; }

/* Flechas laterais do slider — flutuam sobre o viewport */
.timeline__btn--side {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  z-index: 6;
  width: 68px;
  height: 68px;
  background: #FFFFFF;
  box-shadow:
    0 6px 16px rgba(15, 26, 27, 0.12),
    0 18px 40px rgba(15, 26, 27, 0.14);
}
.timeline__btn--side svg {
  width: 24px;
  height: 24px;
  stroke-width: 2.2;
}
.timeline__btn--side:hover:not(:disabled) {
  transform: translateY(-50%) scale(1.06);
}
.timeline__btn--prev { left: 12px; }
.timeline__btn--next { right: 12px; }

@media (max-width: 720px) {
  .timeline__btn--side { width: 52px; height: 52px; }
  .timeline__btn--side svg { width: 20px; height: 20px; }
}

/* ── Viewport / Track ──────────────────────────────────────────── */
.timeline__viewport {
  position: relative;
  margin: 0 -24px;
}
.timeline__viewport::before,
.timeline__viewport::after {
  content: '';
  position: absolute;
  top: 0;
  bottom: 0;
  width: 80px;
  pointer-events: none;
  z-index: 4;
}
.timeline__viewport::before {
  left: 0;
  background: linear-gradient(90deg, var(--bg-soft), transparent);
}
.timeline__viewport::after {
  right: 0;
  background: linear-gradient(-90deg, var(--bg-soft), transparent);
}

.timeline__track {
  position: relative;
  display: flex;
  align-items: flex-end;
  gap: 0;
  overflow-x: auto;
  overflow-y: hidden;
  padding: 60px 24px 80px;
  scroll-behavior: smooth;
  scroll-snap-type: x proximity;
  scrollbar-width: none;
}
.timeline__track::-webkit-scrollbar { display: none; }

/* Linha contínua com gradiente + progresso — alinhada com o year-pin (logo abaixo dos cards) */
.timeline__rail {
  position: absolute;
  left: 24px;
  right: 24px;
  bottom: 80px;
  top: auto;
  transform: translateY(50%);
  height: 3px;
  background:
    repeating-linear-gradient(90deg,
      var(--ink-100) 0,
      var(--ink-100) 6px,
      transparent 6px,
      transparent 12px
    );
  pointer-events: none;
  z-index: 0;
  border-radius: 3px;
}
.timeline__rail::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, var(--eneva-teal), var(--eneva-teal-700));
  width: var(--progress, 0%);
  transition: width 0.4s var(--ease);
  border-radius: 3px;
  box-shadow: 0 0 16px rgba(0, 159, 166, 0.3);
}

/* ── Cada item da timeline ─────────────────────────────────────── */
/* Card no topo (em fluxo) + year-pin/conector absolutos no bottom.
   Como o track usa align-items: flex-end, todos os items têm o bottom
   alinhado — logo o year-pin senta sempre no trilho, mesmo com alturas
   diferentes entre as variantes (que criam o desnível visual desejado). */
.timeline__item {
  position: relative;
  flex: 0 0 auto;
  width: 360px;
  scroll-snap-align: center;
  padding: 0 24px;
  display: flex;
  flex-direction: column;
}

/* Cards alternam acima e abaixo do trilho */
.timeline__card {
  position: relative;
  width: 100%;
  background: #FFFFFF;
  border: 1px solid var(--ink-100);
  border-radius: 18px;
  padding: 0;
  box-shadow:
    0 1px 2px rgba(15, 26, 27, 0.04),
    0 8px 24px rgba(15, 26, 27, 0.06);
  cursor: pointer;
  transition:
    transform 0.4s var(--ease),
    box-shadow 0.4s var(--ease),
    border-color 0.3s var(--ease);
  text-align: left;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}
.timeline__card:hover {
  transform: translateY(-6px);
  box-shadow:
    0 1px 2px rgba(15, 26, 27, 0.04),
    0 24px 48px rgba(15, 26, 27, 0.14),
    0 0 0 1px var(--eneva-teal);
  border-color: transparent;
}

/* Diferença vertical entre cards adjacentes — variante a fica mais alta,
   variante b mais próxima do trilho. Como o track usa flex-end, a margem
   maior empurra o card para cima. */
.timeline__item--above { --tl-gap: 44px; }
.timeline__item--above.timeline__item--a { --tl-gap: 64px; }
.timeline__item--above.timeline__item--b { --tl-gap: 28px; }

.timeline__item--above .timeline__card {
  margin-bottom: var(--tl-gap);
}

/* Hero da imagem com overlay gradiente para legibilidade */
.timeline__card-hero {
  position: relative;
  width: 100%;
  aspect-ratio: 16/10;
  overflow: hidden;
  background: linear-gradient(135deg, var(--eneva-teal-50), var(--ink-100));
}
.timeline__card-hero::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(
    180deg,
    transparent 0%,
    transparent 45%,
    rgba(15, 26, 27, 0.25) 75%,
    rgba(15, 26, 27, 0.55) 100%
  );
  pointer-events: none;
}
.timeline__card-hero-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.7s var(--ease);
}
.timeline__card:hover .timeline__card-hero-img {
  transform: scale(1.06);
}

/* Indicador de mídia no canto da hero */
.timeline__card-media-flag {
  position: absolute;
  top: 14px;
  right: 14px;
  z-index: 2;
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 6px 10px;
  background: rgba(15, 26, 27, 0.7);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  border-radius: 999px;
  font-size: 11px;
  font-weight: 600;
  color: #FFFFFF;
  letter-spacing: 0.02em;
}

/* Corpo do card */
.timeline__card-body {
  padding: 18px 22px 22px;
  display: flex;
  flex-direction: column;
  flex: 1;
}
.timeline__card-date {
  display: block;
  font-family: ui-monospace, 'SF Mono', Menlo, monospace;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--eneva-teal-700);
  margin-bottom: 8px;
}
.timeline__card-title {
  margin: 0 0 8px;
  font-size: 19px;
  font-weight: 700;
  letter-spacing: -0.012em;
  color: var(--ink-900);
  line-height: 1.3;
}
.timeline__card-summary {
  margin: 0 0 14px;
  font-size: 14px;
  color: var(--ink-500);
  line-height: 1.55;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
  flex: 1;
}
.timeline__card-cta {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  font-weight: 600;
  color: var(--eneva-teal-700);
  letter-spacing: 0.01em;
  transition: gap 0.25s var(--ease);
}
.timeline__card:hover .timeline__card-cta {
  gap: 10px;
}
.timeline__card-cta svg { transition: transform 0.25s var(--ease); }
.timeline__card:hover .timeline__card-cta svg { transform: translateX(2px); }

/* Conector vertical card → pin (na rail) */
.timeline__connector {
  position: absolute;
  left: 50%;
  width: 2px;
  background: linear-gradient(180deg, var(--ink-200), var(--ink-100));
  transform: translateX(-50%);
  transition: background 0.3s var(--ease);
  z-index: 1;
}
.timeline__item--above .timeline__connector {
  bottom: 17px;
  height: calc(var(--tl-gap) - 17px);
}

/* Node antigo escondido — year-pin agora é o marcador na rail */
.timeline__node {
  display: none;
}

/* Year-pin posicionado EXATAMENTE sobre a rail (bottom do item, centro alinhado) */
.timeline__year-pin {
  position: absolute;
  left: 50%;
  bottom: 0;
  top: auto;
  transform: translate(-50%, 50%);
  z-index: 3;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 14px 8px 12px;
  background: linear-gradient(135deg, var(--eneva-teal) 0%, var(--eneva-teal-700) 100%);
  border-radius: 10px;
  font-family: 'Inter', sans-serif;
  font-size: 18px;
  font-weight: 800;
  color: #FFFFFF;
  letter-spacing: -0.015em;
  line-height: 1;
  white-space: nowrap;
  box-shadow:
    0 6px 18px rgba(0, 159, 166, 0.35),
    0 2px 4px rgba(15, 26, 27, 0.12),
    inset 0 1px 0 rgba(255, 255, 255, 0.18);
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.12);
  transition: transform 0.35s var(--ease-spring), box-shadow 0.35s var(--ease);
}
.timeline__year-pin::before {
  content: '';
  width: 6px; height: 6px;
  border-radius: 50%;
  background: #FFFFFF;
  box-shadow: 0 0 0 2.5px rgba(255, 255, 255, 0.25);
  flex-shrink: 0;
}

/* Estado: ativo (item mais central) */
.timeline__item.is-active .timeline__connector {
  background: linear-gradient(180deg, var(--eneva-teal), var(--eneva-teal-700));
}
.timeline__item.is-active .timeline__year-pin {
  transform: translate(-50%, 50%) scale(1.12);
  box-shadow:
    0 12px 28px rgba(0, 159, 166, 0.5),
    0 2px 6px rgba(15, 26, 27, 0.15),
    inset 0 1px 0 rgba(255, 255, 255, 0.22);
}
.timeline__item.is-active .timeline__card {
  box-shadow:
    0 1px 2px rgba(15, 26, 27, 0.04),
    0 24px 48px rgba(15, 26, 27, 0.14),
    0 0 0 2px var(--eneva-teal);
  border-color: transparent;
}

/* Animação de entrada */
.timeline__item {
  opacity: 0;
  transform: translateY(24px);
  animation: tl-in 0.7s var(--ease) forwards;
}
.timeline__item:nth-child(1) { animation-delay: 0.06s; }
.timeline__item:nth-child(2) { animation-delay: 0.14s; }
.timeline__item:nth-child(3) { animation-delay: 0.22s; }
.timeline__item:nth-child(4) { animation-delay: 0.30s; }
.timeline__item:nth-child(5) { animation-delay: 0.38s; }
.timeline__item:nth-child(6) { animation-delay: 0.46s; }
.timeline__item:nth-child(7) { animation-delay: 0.54s; }
.timeline__item:nth-child(8) { animation-delay: 0.62s; }
.timeline__item:nth-child(n+9) { animation-delay: 0.7s; }

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

/* Indicador de scroll inicial — sutil dica visual */
.timeline__hint {
  position: absolute;
  right: 24px;
  bottom: 8px;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--ink-300);
  pointer-events: none;
  opacity: 0;
  animation: hint-fade 4s var(--ease) 0.6s forwards;
}
@keyframes hint-fade {
  0%   { opacity: 0; transform: translateX(0); }
  20%  { opacity: 0.9; }
  60%  { opacity: 0.9; transform: translateX(8px); }
  100% { opacity: 0; transform: translateX(8px); }
}

@media (max-width: 720px) {
  .timeline__title { font-size: 32px; }
  .timeline__item { width: 300px; }
  .timeline__card-title { font-size: 17px; }
}