/* =============================================================================
   OE Horizontal Timeline
   WPCodeBox snippet — CSS
   ============================================================================= */

/* ---- Color tokens (override per-instance by scoping to a wrapper selector) -- */
:root {
  --oe-tl-bg:                transparent;
  .oe-section-primary, .oe-light { --oe-tl-line: var(--oe-color-primary); }
  --oe-tl-line:              #003469;       /* connecting line (real items) */
  --oe-tl-line-ghost:        #d0dae3;       /* connecting line in ghost/edge area */
  --oe-tl-dot:               #ccd6e0;       /* inactive year dot */
  --oe-tl-dot-active:        #003469;       /* active year dot fill */
  --oe-tl-dot-ring:          #00addc;       /* ring around active dot */
  --oe-tl-dot-size:          14px;
  --oe-tl-dot-active-size:   18px;
  --oe-tl-line-y:            28px;          /* vertical position of dot/line from item top */
  --oe-tl-arrow-color:       #003469;
  --oe-tl-arrow-bg:          var(--oe-color-background-trans-overlay);
  --oe-tl-arrow-bg-hover:    var(--oe-color-background-trans-overlay-hover);
  --oe-tl-arrow-border:      var(--oe-border-line-color);
  --oe-tl-arrow-color-hover: var(--oe-color-primary);
  --oe-tl-year-color:        #6b7c93;
  --oe-tl-year-active:       var(--oe-color-base);
  --oe-tl-title-color:       var(--oe-color-base);
  --oe-tl-body-color:        var(--oe-color-neutral);
  --oe-tl-dot-hover:         #5a7fa0;       /* inactive dot on hover */
  --oe-tl-dot-ring-hover:    rgba(0, 173, 220, 0.25); /* ring on hover */
  --oe-tl-nav-dot:           #ccd6e0;
  --oe-tl-nav-dot-active:    var(--oe-color-primary);
  --oe-tl-nav-counter-color: #6b7c93;
  --oe-timeline-nav-dot-gap: var(--oe-spacing-xsmall);
  --oe-timeline-nav-dot-size: var(--oe-sizing-base);

  /* Responsive visible-item count — overwritten by JS on init and resize */
  --oe-tl-visible:           3;
}

/* ---- Outer wrapper --------------------------------------------------------- */
.oe-timeline {
  position: relative;
  background: var(--oe-tl-bg);
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0;
  /* arrow buttons sit outside the track; use padding to reserve space */
  padding: 0 56px;
  box-sizing: border-box;
}

/* ---- Track (clips and slides) --------------------------------------------- */
.oe-timeline__track {
  position: relative;
  overflow: hidden;
  width: 100%;
  /* The connecting line */
}

/* Grey base line — full width, gives ghost/edge areas their disabled feel */
.oe-timeline__track::before {
  content: '';
  position: absolute;
  top: var(--oe-tl-line-y);
  left:  0;
  right: 0;
  height: 2px;
  background: var(--oe-tl-line-ghost);
  transform: translateY(-50%);
  z-index: 0;
  pointer-events: none;
}

/* Navy line on top — JS sets --oe-tl-line-left / right each navigation to
   trim ghost slots from the span; falls back to static formula before JS runs */
.oe-timeline__track::after {
  content: '';
  position: absolute;
  top: var(--oe-tl-line-y);
  left:  var(--oe-tl-line-left,  calc(100% / (var(--oe-tl-visible) * 2)));
  right: var(--oe-tl-line-right, calc(100% / (var(--oe-tl-visible) * 2)));
  height: 2px;
  background: var(--oe-tl-line);
  transform: translateY(-50%);
  z-index: 0;
  pointer-events: none;
}

/* ---- Inner slider (the element JS applies translateX to) ------------------- */
.oe-timeline__slider {
  display: flex;
  will-change: transform;
  transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
  z-index: 1; /* above both ::before and ::after lines on the track */
}

@media (prefers-reduced-motion: reduce) {
  .oe-timeline__slider,
  .oe-timeline__content {
    transition: none;
  }
}

/* ---- Individual items ------------------------------------------------------ */
.oe-timeline__item {
  flex: 0 0 calc(100% / var(--oe-tl-visible));
  min-width: calc(100% / var(--oe-tl-visible));
  box-sizing: border-box;
  padding: 0 16px;
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}

/* ---- Year dot -------------------------------------------------------------- */
/* The dot is a pseudo-element on .oe-timeline__year */
.oe-timeline__year {
  position: relative;
  padding-top: var(--oe-spacing-2xlarge);
  padding-bottom: var(--oe-spacing-small);
  font-size: var(--oe-font-size-large);
  font-weight: 700;
  letter-spacing: 0.04em;
  color: rgba(0,52,102,0.65);
  transition: color 0.25s ease;
  line-height: 1;
  margin: 0 0 12px;
}

.oe-light .oe-timeline__year,
.oe-section-primary .oe-timeline__year {
  color: rgba(255,255,255,0.65);
}

/* dot sits at --oe-tl-line-y from the top of the item */
.oe-timeline__year::before {
  content: '';
  position: absolute;
  top: 0;
  left: 50%;
  transform: translate(-50%, -50%);
  margin-top: var(--oe-tl-line-y);
  width: var(--oe-tl-dot-size);
  height: var(--oe-tl-dot-size);
  border-radius: 50%;
  background: var(--oe-tl-dot);
  border: 2px solid var(--oe-tl-line);
  transition: width 0.25s ease, height 0.25s ease, background 0.25s ease, box-shadow 0.25s ease;
  z-index: 2;
}


/* ---- Ghost items (JS-injected, only present when maxVisible ≥ 3) ----------- */
.oe-timeline__item--ghost {
  pointer-events: none;
  user-select: none;
}

.oe-timeline__item--ghost .oe-timeline__year::before {
  display: none;
}

/* ---- Dot hover state (inactive items only) --------------------------------- */
.oe-timeline__item:not(.is-active) .oe-timeline__year {
  cursor: pointer;
}

.oe-timeline__item:not(.is-active):hover .oe-timeline__year {
  color: var(--oe-tl-year-active);
}

.oe-light .oe-timeline__item:not(.is-active):hover .oe-timeline__year,
.oe-section-primary .oe-timeline__item:not(.is-active):hover .oe-timeline__year {
  color: rgba(255,255,255,0.95);
}

.oe-timeline__item:not(.is-active):hover .oe-timeline__year::before {
  width:      calc(var(--oe-tl-dot-size) + 4px);
  height:     calc(var(--oe-tl-dot-size) + 4px);
  background: var(--oe-tl-dot-hover);
  box-shadow: 0 0 0 3px var(--oe-tl-dot-ring-hover);
}

/* ---- Active item states ---------------------------------------------------- */
.oe-timeline__item.is-active .oe-timeline__year {
  color: var(--oe-color-heritage-blue);
}

.oe-light .oe-timeline__item.is-active .oe-timeline__year,
.oe-section-primary .oe-timeline__item.is-active .oe-timeline__year {
  color: #FFFFFF;
}

.oe-timeline__item.is-active .oe-timeline__year::before {
  width: var(--oe-tl-dot-active-size);
  height: var(--oe-tl-dot-active-size);
  background: var(--oe-tl-dot-active);
  box-shadow: 0 0 0 4px var(--oe-tl-dot-ring);
}

/* ---- Optional title and body ---------------------------------------------- */
.oe-timeline__title {
  font-size: 1rem;
  font-weight: 600;
  color: var(--oe-color-heritage-blue);
  margin: 0 0 8px;
  line-height: 1.3;
}

.oe-light .oe-timeline__title,
.oe-section-primary .oe-timeline__title {
  color: #FFFFFF;
}

.oe-timeline__body {
  font-size: 0.875rem;
  color: var(--oe-tl-body-color);
  line-height: 1.55;
  margin: 0;
}

.oe-light .oe-timeline__body,
.oe-section-primary .oe-timeline__body {
  color: rgba(255,255,255,0.8);
}

/* Dim year label and title on inactive items */
.oe-timeline__item:not(.is-active) .oe-timeline__title {
  opacity: 0.45;
  transition: opacity 0.25s ease;
}

/* ---- Content wrapper — hides body (and any extra content) when inactive ---- */
.oe-timeline__content {
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.4s ease;
}

.oe-timeline__item.is-active .oe-timeline__content {
  opacity: 1;
  pointer-events: auto;
}

/* ---- Flash prevention — items hidden until JS signals ready ---------------- */
.oe-timeline:not(.is-ready) .oe-timeline__item {
  visibility: hidden;
}

/* ---- Arrow buttons --------------------------------------------------------- */
.oe-timeline__arrow {
  position: absolute;
  top: var(--oe-tl-line-y);
  transform: translateY(-50%);
  z-index: 10;
  width: 40px;
  height: 40px;
  border-radius: var(--oe-border-radius-base);
  border: 1px solid var(--oe-tl-arrow-border);
  background: var(--oe-tl-arrow-bg);
  color: var(--oe-tl-arrow-color);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0;
  transition: background 0.2s ease, border-color 0.2s ease, opacity 0.2s ease;
  flex-shrink: 0;
}

.oe-light .oe-timeline__arrow,
.oe-section-primary .oe-timeline__arrow  {
  background-color: var(--oe-color-background-trans-overlay);
  border: 1px solid rgba(39,91,150,0.56);
  color: var(--oe-color-primary);
}

.oe-timeline__arrow--prev { left: 0; }
.oe-timeline__arrow--next { right: 0; }

.oe-timeline__arrow:hover {
  background: var(--oe-tl-arrow-bg-hover);
  color: var(--oe-tl-arrow-color-hover);
}

.oe-timeline__arrow:focus-visible {
  outline: 3px solid var(--oe-tl-dot-ring);
  outline-offset: 2px;
}

/* Disabled state (loop=false, at boundary) */
.oe-timeline__arrow[aria-disabled="true"] {
  opacity: 0.3;
  cursor: default;
  pointer-events: none;
}

/* SVG arrow icons */
.oe-timeline__arrow svg {
  width: 16px;
  height: 16px;
  fill: none;
  stroke: currentColor;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
}

/* ---- Nav dots / counter ---------------------------------------------------- */
.oe-timeline__nav {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--oe-timeline-nav-dot-gap);
  margin-top: var(--oe-spacing-large);
  padding: 0;
}

.oe-timeline__nav-dot {
  width: var(--oe-timeline-nav-dot-size);
  height: var(--oe-timeline-nav-dot-size);
  border-radius: 50%;
  border: none;
  background: var(--oe-tl-nav-dot);
  cursor: pointer;
  padding: 0;
  transition: background 0.2s ease, transform 0.2s ease;
  flex-shrink: 0;
}

.oe-timeline__nav-dot.is-active {
  background: var(--oe-tl-nav-dot-active);

}

.oe-timeline__nav-dot:focus-visible {
  outline: 3px solid var(--oe-tl-dot-ring);
  outline-offset: 3px;
}

.oe-timeline__nav-counter {
  font-size: 0.8125rem;
  color: var(--oe-tl-nav-counter-color);
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.03em;
}

/* ---- Visually-hidden utility (live region) --------------------------------- */
.oe-timeline__live {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
}