/* EXPERIENCE - growth timeline */
.timeline { position: relative; display: flex; flex-direction: column; gap: clamp(2.5rem, 7vw, 5rem); padding: 1rem 0; }
.timeline__line { position: absolute; left: 50%; top: 0; bottom: 0; width: 4px; translate: -50% 0; border-radius: 4px; box-shadow: var(--neu-in); overflow: hidden; }
.timeline__line i { position: absolute; inset: 0; background: var(--accent); transform-origin: top; transform: scaleY(0); box-shadow: 0 0 16px var(--accent-glow); will-change: transform; }
.tl-item { position: relative; display: grid; grid-template-columns: 1fr 1fr; }
.tl-item.is-left .tl-card { grid-column: 1; margin-right: clamp(2rem, 6vw, 4.5rem); }
.tl-item.is-right .tl-card { grid-column: 2; margin-left: clamp(2rem, 6vw, 4.5rem); }
.tl-dot { position: absolute; left: 50%; top: 2rem; width: 1.5rem; height: 1.5rem; translate: -50% 0; border-radius: 50%; background: var(--bg); box-shadow: var(--neu-out-sm); z-index: 1; transition: box-shadow 0.5s; }
.tl-dot::after { content: ''; position: absolute; inset: 0.4rem; border-radius: 50%; background: var(--text-dim); opacity: 0.4; transition: background 0.5s, opacity 0.5s, box-shadow 0.5s; }
.tl-item.is-reached .tl-dot::after { background: var(--accent); opacity: 1; box-shadow: 0 0 12px var(--accent-glow); }
.tl-item.is-now .tl-dot::before { content: ''; position: absolute; inset: -0.5rem; border-radius: 50%; border: 1.5px solid var(--accent); animation: pulse-ring 2.2s var(--ease-out) infinite; }
.tl-card { padding: clamp(1.5rem, 3vw, 2.2rem); border-radius: var(--r-lg); }
.tl-when { display: inline-block; font-family: var(--font-mono); font-size: 0.75rem; letter-spacing: 0.14em; text-transform: uppercase; color: var(--accent); margin-bottom: 0.8rem; }
.tl-card h3 { margin-bottom: 0.7rem; }
.tl-card p { font-size: 0.98rem; }

@media (max-width: 800px) {
  .timeline__line { left: 0.75rem; translate: 0 0; }
  .tl-item { grid-template-columns: 1fr; padding-left: 2.8rem; }
  .tl-item.is-left .tl-card, .tl-item.is-right .tl-card { grid-column: 1; margin: 0; }
  .tl-dot { left: 0.75rem; }
  .tl-item[class] .tl-card[data-reveal] { --rv-distance: 40px; }
  [data-reveal='left'], [data-reveal='right'] { transform: translate3d(0, var(--rv-distance), 0); }
}