/* =========================================
   EXPERIENCE TIMELINE — experience.css
   ========================================= */

/* ── SECTION ─────────────────────────────── */

.experience-section {
  padding:    96px 48px 120px;
  position:   relative;
}

/* ── HEADER ──────────────────────────────── */

.experience-header {
  display:         flex;
  align-items:     flex-end;
  justify-content: space-between;
  margin-bottom:   80px;
}

.experience-kicker {
  display:        flex;
  align-items:    center;
  gap:            10px;
  font-size:      11px;
  color:          var(--blue);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  margin-bottom:  16px;
}

.experience-kicker::before {
  content:       "";
  width:         20px;
  height:        1.5px;
  background:    var(--blue);
  border-radius: 2px;
  flex-shrink:   0;
}

.experience-title {
  font-size: clamp(2.4rem, 9vw, 3.6rem);
  line-height:    1.00;
  letter-spacing: -0.06em;
  font-weight:    300;
  color:          var(--text-primary);
}

.experience-title span {
  color: var(--blue);
}

.experience-range {
  display:        inline-flex;
  align-items:    center;
  padding:        10px 20px;
  border:         1.5px solid var(--border-hover);
  border-radius:  var(--radius-pill);
  font-size:      13px;
  font-weight:    400;
  color:          var(--text-secondary);
  letter-spacing: 0.02em;
  white-space:    nowrap;
}

/* ── TIMELINE CONTAINER ──────────────────── */

.timeline {
  position: relative;
  max-width: 960px;
  margin:    0 auto;
}

/* ── VERTICAL TRACK ──────────────────────── */

.timeline__track {
  position:   absolute;
  left:       50%;
  top:        0;
  bottom:     0;
  width:      1px;
  transform:  translateX(-50%);
  background: var(--border);
  overflow:   hidden;
}

/* animated fill line */
.timeline__track-fill {
  position:   absolute;
  top:        0;
  left:       0;
  right:      0;
  height:     0%;
  background: linear-gradient(
    to bottom,
    var(--blue) 0%,
    rgba(26,70,201,0.25) 100%
  );
  transition: height 1.8s var(--ease-out);
}

.timeline__track-fill.is-active {
  height: 100%;
}

/* ── ENTRY ───────────────────────────────── */

.timeline__entry {
  position:  relative;
  display:   grid;
  width:     100%;
  min-height: 160px;
  margin-bottom: 0;
  padding-bottom: 64px;
}

/* LEFT — card on left, node on right half */
.timeline__entry--left {
  grid-template-columns: 1fr 40px 1fr;
  grid-template-areas:   "card . node-space";
}

/* RIGHT — card on right, node on left half */
.timeline__entry--right {
  grid-template-columns: 1fr 40px 1fr;
  grid-template-areas:   "node-space . card";
}

.timeline__entry--left  .timeline__card { grid-area: card; text-align: right; padding-right: 40px; }
.timeline__entry--right .timeline__card { grid-area: card; text-align: left;  padding-left:  40px; }

/* align tags left/right */
.timeline__entry--left  .timeline__tags { justify-content: flex-end; }
.timeline__entry--right .timeline__tags { justify-content: flex-start; }

/* ── NODE ────────────────────────────────── */

.timeline__node {
  position:      absolute;
  left:          50%;
  top:           8px;
  transform:     translateX(-50%);
  width:         14px;
  height:        14px;
  border-radius: 50%;
  background:    var(--bg);
  border:        2px solid rgba(0,0,0,0.18);
  z-index:       2;
  transition:
    border-color  var(--t-base) ease,
    background    var(--t-base) ease,
    box-shadow    var(--t-base) ease,
    transform     var(--t-base) var(--ease-out);
}

.timeline__node--active {
  background:   var(--blue);
  border-color: var(--blue);
  box-shadow:   0 0 0 4px rgba(26,70,201,0.15);
}

/* hover — entry highlights its node */
.timeline__entry:hover .timeline__node {
  border-color: var(--blue);
  transform:    translateX(-50%) scale(1.3);
  box-shadow:   0 0 0 6px rgba(26,70,201,0.12);
}

.timeline__entry:hover .timeline__node--active {
  box-shadow: 0 0 0 8px rgba(26,70,201,0.18);
  transform:  translateX(-50%) scale(1.2);
}

/* ── PERIOD PILL ─────────────────────────── */

.timeline__period {
  display:        inline-flex;
  align-items:    center;
  padding:        6px 14px;
  border:         1.5px solid var(--border-hover);
  border-radius:  var(--radius-pill);
  font-size:      11px;
  font-weight:    500;
  letter-spacing: 0.06em;
  color:          var(--text-secondary);
  margin-bottom:  16px;
  transition:     border-color var(--t-fast) ease;
}

.timeline__period--current {
  background:   var(--blue);
  border-color: var(--blue);
  color:        #ffffff;
}

/* ── CARD ────────────────────────────────── */

.timeline__card {
  display:        flex;
  flex-direction: column;
  gap:            8px;
}

.timeline__entry:hover .timeline__card .timeline__company {
  color: var(--blue);
}

/* ── COMPANY ─────────────────────────────── */

.timeline__company {
  font-size:      clamp(1.6rem, 2.8vw, 2.4rem);
  line-height:    1.05;
  letter-spacing: -0.04em;
  font-weight:    300;
  color:          var(--blue);
  transition:     color var(--t-fast) ease;
}

/* ── ROLE ────────────────────────────────── */

.timeline__role {
  font-size:  14px;
  color:      var(--text-muted);
  font-weight: 400;
  line-height: 1.4;
}

/* ── DESC ────────────────────────────────── */

.timeline__desc {
  font-size:   15px;
  line-height: 1.7;
  color:       var(--text-secondary);
  margin-top:  4px;
  max-width:   42ch;
}

.timeline__entry--right .timeline__desc { margin-left: 0; }
.timeline__entry--left  .timeline__desc { margin-left: auto; }

/* ── TAGS ────────────────────────────────── */

.timeline__tags {
  display:   flex;
  flex-wrap: wrap;
  gap:       6px 16px;
  margin-top: 8px;
}

.timeline__tag {
  font-size:      11px;
  font-weight:    500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color:          var(--blue);
  opacity:        0.75;
  transition:     opacity var(--t-fast) ease;
}

.timeline__entry:hover .timeline__tag {
  opacity: 1;
}

/* ── SCROLL REVEAL ───────────────────────── */

.tl-reveal {
  opacity:    0;
  transform:  translateY(28px);
  transition:
    opacity   0.65s var(--ease-out),
    transform 0.65s var(--ease-out);
  transition-delay: var(--delay, 0ms);
}

.tl-reveal.is-visible {
  opacity:   1;
  transform: translateY(0);
}

/* LEFT entries slide from left */
.timeline__entry--left.tl-reveal {
  transform: translateX(-20px) translateY(16px);
}

.timeline__entry--left.tl-reveal.is-visible {
  transform: translateX(0) translateY(0);
}

/* RIGHT entries slide from right */
.timeline__entry--right.tl-reveal {
  transform: translateX(20px) translateY(16px);
}

.timeline__entry--right.tl-reveal.is-visible {
  transform: translateX(0) translateY(0);
}

/* ── HOVER CARD HIGHLIGHT ────────────────── */

.timeline__entry {
  cursor: default;
}

.timeline__entry:hover .timeline__period:not(.timeline__period--current) {
  border-color: var(--blue);
  color:        var(--blue);
}

/* ── RESPONSIVE — 1024px ─────────────────── */

@media (max-width: 1024px) {

  .experience-section {
    padding: 80px 40px 100px;
  }

  .experience-title {
    font-size: clamp(2.4rem, 9vw, 3.6rem);
  }

}

/* ── RESPONSIVE — 768px — MOBILE ─────────── */

@media (max-width: 768px) {

  .experience-section {
    padding: 64px 20px 80px;
  }

  .experience-header {
    flex-direction: column;
    align-items:    flex-start;
    gap:            20px;
    margin-bottom:  56px;
  }

  /* mobile: single column, all cards on right of line */
  .timeline {
    padding-left: 32px;
  }

  .timeline__track {
    left: 0;
  }

  .timeline__entry--left,
  .timeline__entry--right {
    display:               grid;
    grid-template-columns: 1fr;
    grid-template-areas:   "card";
  }

  .timeline__entry--left  .timeline__card,
  .timeline__entry--right .timeline__card {
    text-align:   left;
    padding-left: 24px;
    padding-right: 0;
  }

  .timeline__entry--left  .timeline__tags,
  .timeline__entry--right .timeline__tags {
    justify-content: flex-start;
  }

  .timeline__entry--left  .timeline__desc {
    margin-left: 0;
  }

  .timeline__node {
    left:      0;
    top:       10px;
    transform: translateX(-50%);
  }

  .timeline__entry:hover .timeline__node {
    transform: translateX(-50%) scale(1.3);
  }

  .timeline__entry:hover .timeline__node--active {
    transform: translateX(-50%) scale(1.2);
  }

  .timeline__desc {
    max-width: 100%;
  }

  /* mobile slide from bottom only */
  .timeline__entry--left.tl-reveal,
  .timeline__entry--right.tl-reveal {
    transform: translateY(20px);
  }

  .timeline__entry--left.tl-reveal.is-visible,
  .timeline__entry--right.tl-reveal.is-visible {
    transform: translateY(0);
  }

}