/* ============================================================
   about.css — About page styles
   Extends style.css (base tokens, navbar, footer already defined there)
   ============================================================ */

/* ─── Page shell ─────────────────────────────────────────── */
.about-page {
  margin-top: var(--nav-h);
  padding: clamp(3rem, 7vw, 6rem) clamp(1.5rem, 10vw, 12rem);
  max-width: 900px;
  margin-left: auto;
  margin-right: auto;
}

/* ─── Shared label ───────────────────────────────────────── */
.section-label {
  font-size: 1.25rem;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--sage-dark);
  margin-bottom: 1rem;
}

/* ─── Page header ────────────────────────────────────────── */
.about-header {
  margin-bottom: clamp(3rem, 6vw, 5rem);
  animation: fadeUp 0.7s ease both;
}

.about-header__heading {
  font-family: var(--font-serif);
  font-size: clamp(2rem, 4.5vw, 3.2rem);
  font-weight: 500;
  line-height: 1.2;
  color: var(--ink);
  margin-bottom: 1.4rem;
}

.about-header__heading em {
  font-style: italic;
  font-weight: 400;
  color: var(--accent);
}

.about-header__intro {
  font-size: 1rem;
  font-weight: 300;
  line-height: 1.8;
  color: var(--ink-muted);
  max-width: 560px;
}

/* ─── Timeline ───────────────────────────────────────────── */
.timeline {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.timeline__entry {
  display: grid;
  grid-template-columns: 110px 32px 1fr;
  gap: 0 1.5rem;
  padding-bottom: clamp(2.5rem, 5vw, 3.5rem);
}

/* Meta column — date + badge */
.timeline__meta {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 0.45rem;
  padding-top: 3px;
}

.timeline__date {
  font-family: var(--font-sans);
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.06em;
  color: var(--ink-faint);
  white-space: nowrap;
  text-align: right;
}

.timeline__badge {
  font-size: 0.62rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 2px 8px;
  border-radius: 20px;
}

.timeline__badge.current {
  background: rgba(77, 122, 82, 0.12);
  color: var(--accent);
  border: 1px solid rgba(77, 122, 82, 0.3);
}

/* Connector column — dot + vertical line */
.timeline__connector {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0;
}

.timeline__dot {
  width: 11px;
  height: 11px;
  border-radius: 50%;
  background: var(--accent);
  border: 2px solid var(--cream);
  outline: 1.5px solid var(--accent);
  flex-shrink: 0;
  margin-top: 5px;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.timeline__entry:hover .timeline__dot {
  transform: scale(1.3);
  box-shadow: 0 0 0 4px rgba(77, 122, 82, 0.15);
}

.timeline__line {
  flex: 1;
  width: 1px;
  background: linear-gradient(to bottom, var(--sage-light), transparent);
  margin-top: 6px;
  opacity: 0.5;
}

/* Body column — content */
.timeline__body {
  padding-top: 0;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.timeline__role {
  font-family: var(--font-serif);
  font-size: clamp(1.25rem, 2.2vw, 1.6rem);
  font-weight: 500;
  color: var(--ink);
  line-height: 1.25;
}

.timeline__role em {
  font-style: italic;
  font-weight: 400;
  color: var(--accent);
}

.timeline__place {
  font-size: 0.8rem;
  font-weight: 500;
  letter-spacing: 0.04em;
  color: var(--sage-dark);
  text-transform: uppercase;
}

.timeline__detail {
  font-size: 0.92rem;
  font-weight: 300;
  line-height: 1.8;
  color: var(--ink-muted);
}

/* Inline hyperlink style */
.inline-link {
  color: var(--accent);
  border-bottom: 1px solid rgba(77, 122, 82, 0.35);
  transition: border-color var(--transition), color var(--transition);
}
.inline-link:hover {
  color: var(--sage-dark);
  border-color: var(--sage-dark);
}

/* Award / lab chips */
.timeline__awards {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 0.25rem;
}

.award-chip {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.75rem;
  font-weight: 400;
  color: var(--ink-muted);
  background: var(--cream-dark);
  border: 1px solid rgba(0,0,0,0.07);
  padding: 0.3rem 0.75rem;
  border-radius: 20px;
  letter-spacing: 0.02em;
}

.award-chip svg {
  color: var(--accent);
  flex-shrink: 0;
}

/* ─── Scroll reveal ──────────────────────────────────────── */
.reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ─── Responsive ─────────────────────────────────────────── */
@media (max-width: 768px) {
  .about-page {
    padding: 2rem 1.2rem;
  }

  .timeline__entry {
    grid-template-columns: 24px 1fr;
    gap: 0 1rem;
  }

  .timeline__meta {
    display: none; /* hide date column — shown inside body via ::before */
  }

  /* Re-insert date above role on mobile */
  .timeline__body::before {
    content: attr(data-date);
    font-size: 0.7rem;
    font-weight: 500;
    letter-spacing: 0.06em;
    color: var(--ink-faint);
    order: -1;
  }
}