/* ============================================================
   MILESTONE SECTION — VERTICAL TIMELINE
   ============================================================ */
.milestone-section {
  padding-top: var(--space-xl);
  padding-bottom: var(--space-2xl);
}

.samator-container {
  max-width: 1440px;
  margin: 0 auto;
  padding-left: var(--space-2xl);
  padding-right: var(--space-2xl);
}

/* --- Header --- */
.milestone-header {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-lg);
  align-items: start;
  margin-bottom: var(--space-2xl);
}

.milestone-label {
  font-size: var(--text-xs-2);
  font-weight: 700;
  letter-spacing: 0.4em;
  text-transform: uppercase;
  color: var(--primary-40);
  margin-bottom: var(--space-sm);
}

.milestone-title {
  font-size: var(--h3);
  font-weight: 400;
  line-height: 115%;
  letter-spacing: -0.02em;
  color: var(--primary-10);
}

.milestone-subtitle {
  font-size: var(--text-sm);
  font-weight: 400;
  line-height: 150%;
  color: var(--neutral-50);
  max-width: 400px;
  align-self: end;
}

/* --- Timeline Wrapper --- */
.timeline-wrapper {
  position: relative;
}

/* Center vertical line */
.timeline-wrapper::before {
  content: '';
  position: absolute;
  left: 50%;
  top: 0;
  bottom: 0;
  width: 1px;
  background: linear-gradient(
    to bottom,
    transparent 0%,
    var(--neutral-30) 5%,
    var(--neutral-30) 95%,
    transparent 100%
  );
  transform: translateX(-50%);
}

/* --- Timeline Item --- */
.timeline-item {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
  align-items: start;
  margin-bottom: 0;            /* jarak diatur via interleave (JS) */
  position: relative;
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.timeline-item.visible {
  opacity: 1;
  transform: translateY(0);
}

/* Dot on the center line — default faded */
.timeline-dot {
  position: absolute;
  left: 50%;
  top: 50%;                       /* di-override JS = sejajar tengah angka tahun */
  transform: translate(-50%, -50%);
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: radial-gradient(
    circle,
    color-mix(in srgb, var(--primary-40) 30%, transparent) 0%,
    color-mix(in srgb, var(--primary-40) 10%, transparent) 60%,
    transparent 100%
  );
  z-index: 2;
  transition: background 0.6s ease, box-shadow 0.6s ease;
}

/* Dot — visible (scrolled into view): full + glow */
.timeline-item.visible .timeline-dot {
  background: radial-gradient(
    circle,
    var(--primary-40) 0%,
    var(--primary-40) 35%,
    color-mix(in srgb, var(--primary-40) 40%, transparent) 70%,
    transparent 100%
  );
  box-shadow: 0 0 16px color-mix(in srgb, var(--primary-40) 40%, transparent);
}

.timeline-item:hover .timeline-dot {
  box-shadow: 0 0 20px color-mix(in srgb, var(--primary-40) 60%, transparent);
}

/* Content sides — gap dari garis tengah ke konten (fluid: 150px @1440 → mengecil di layar kecil) */
.timeline-left {
  padding-right: clamp(40px, 10.4vw, 150px);
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  text-align: right;
}

.timeline-right {
  padding-left: clamp(40px, 10.4vw, 150px);
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  text-align: left;
}

.timeline-empty {
  /* intentionally empty */
}

/* --- Card Content ---
   Spec Figma (anchor @1440px = max-width container): image 334×218, gap img→year 16,
   year 40/500/120%/-0.5%, gap year→title 16, title 20/500/140%/0.5%, gap title→desc 8,
   desc 16/400/150%/0.5%. Semua dibungkus clamp() → fluid di bawah 1440, pas spec di ≥1440. */
.timeline-image {
  width: 100%;
  max-width: clamp(240px, 23.2vw, 334px);   /* Figma 334px */
  aspect-ratio: 334 / 218;                   /* Figma 334×218 */
  object-fit: cover;
  border-radius: 20px;
  margin-bottom: clamp(12px, 1.11vw, 16px);  /* gap img→year 16px */
  display: block;
}

.timeline-left .timeline-image {
  align-self: flex-end;
}

.timeline-right .timeline-image {
  align-self: flex-start;
}

.timeline-year {
  font-family: 'Montserrat', sans-serif;
  font-size: clamp(28px, 2.78vw, 40px);      /* Figma 40px */
  font-weight: 500;
  line-height: 120%;
  letter-spacing: -0.005em;                  /* -0.5% */
  color: var(--primary-40);
  margin-bottom: clamp(12px, 1.11vw, 16px);  /* gap year→title 16px */
}

.timeline-event-title {
  font-family: 'Montserrat', sans-serif;
  font-size: clamp(16px, 1.39vw, 20px);      /* Figma 20px */
  font-weight: 500;
  line-height: 140%;
  letter-spacing: 0.005em;                   /* 0.5% */
  color: var(--primary-10);
  margin-bottom: clamp(6px, 0.56vw, 8px);    /* gap title→desc 8px */
}

.timeline-desc {
  font-family: 'Montserrat', sans-serif;
  font-size: clamp(14px, 1.11vw, 16px);      /* Figma 16px */
  font-weight: 400;
  line-height: 150%;
  letter-spacing: 0.005em;                   /* 0.5% */
  color: var(--neutral-50);
  max-width: clamp(320px, 28vw, 400px);
}

/* ============================================================
   MOBILE (max-width: 767px)
   ============================================================ */
@media (max-width: 767px) {
  .milestone-section {
    padding-top: var(--space-2xl);
    padding-bottom: var(--space-2xl);
  }

  .milestone-header {
    grid-template-columns: 1fr;
    gap: var(--space-sm);
    margin-bottom: var(--space-xl);
  }

  .milestone-title {
    font-size: var(--h3);
  }

  /* Timeline ikut padding container Bricks (buang padding ganda samator-container) */
  .samator-container {
    padding-left: 0;
    padding-right: 0;
  }

  /* Single-column layout on mobile — rail di kiri konten */
  .timeline-wrapper::before {
    left: 11px;
  }

  .timeline-item {
    grid-template-columns: 1fr;
    padding-left: 44px;
    margin-bottom: var(--space-xl);
  }

  .timeline-dot {
    left: 11px;
    transform: translate(-50%, -50%);   /* top di-set JS = sejajar tengah angka tahun */
    width: 20px;
    height: 20px;
  }

  /* Hide empty column */
  .timeline-empty {
    display: none;
  }

  /* Both left and right rata kiri */
  .timeline-left,
  .timeline-right {
    padding: 0 !important;
    align-items: flex-start !important;
    text-align: left !important;
  }

  .timeline-left .timeline-image,
  .timeline-right .timeline-image {
    align-self: flex-start !important;
  }

  /* Override inline style text-align:right */
  .timeline-desc[style*="text-align:right"],
  .timeline-desc[style*="text-align: right"] {
    text-align: left !important;
  }

  /* For right items on mobile, swap so content is always in the first column */
  .timeline-item.right .timeline-right {
    grid-column: 1;
    grid-row: 1;
  }

  .timeline-image {
    max-width: 100%;
  }

  .timeline-desc {
    max-width: 100%;
  }
}

/* ── Reduced motion ── */
@media (prefers-reduced-motion: reduce) {
  .timeline-item,
  .timeline-dot { transition: none !important; }
}