/* ============================================
   ABOUT
   ============================================ */

/* --------------------------------------------
   HEADER
   -------------------------------------------- */
.about-head {
  padding-top: calc(var(--nav-h) + clamp(3rem, 8vw, 7rem));
  padding-bottom: clamp(3rem, 7vw, 6rem);
  row-gap: clamp(3rem, 7vw, 6rem);
}

.about-head__title { grid-column: 4 / -1; max-width: 15em; }

/* --------------------------------------------
   SECTIONS
   -------------------------------------------- */
.about-section {
  padding-block: var(--section);
  border-top: 1px solid var(--text-faint);
  row-gap: 2rem;
  align-items: start;
}

.about-section__body {
  grid-column: 4 / -1;
  display: grid;
  gap: clamp(2rem, 4vw, 3rem);
  justify-items: start;
}

/* Label rides along while a long section scrolls past */
.about-section__sticky {
  position: sticky;
  top: calc(var(--nav-h) + 1.5rem);
}

.about-lede { max-width: 26em; }

.about-prose {
  display: grid;
  gap: 1em;
  max-width: 34em;
  margin-left: auto;
  font-size: var(--step-0);
  line-height: 1.6;
}

/* --------------------------------------------
   PATH — timeline with a red line that grows
   -------------------------------------------- */
.timeline {
  grid-column: 4 / -1;
  position: relative;
  padding-left: clamp(1.5rem, 4vw, 4rem);
}

.timeline__line {
  position: absolute;
  left: 0;
  top: 0.5rem;
  bottom: 0;
  width: 2px;
  background: var(--accent);
}

.timeline__list { display: grid; gap: clamp(4rem, 9vw, 8rem); list-style: none; }

.timeline__entry { position: relative; display: grid; gap: 0.6rem; }

/* Square node on the line, level with each entry's date */
.timeline__entry::before {
  content: '';
  position: absolute;
  left: calc(-1 * clamp(1.5rem, 4vw, 4rem) - 5px);
  top: 0.2rem;
  width: 12px;
  height: 12px;
  background: var(--accent);
}

.timeline__points {
  display: grid;
  gap: 0.6rem;
  max-width: 38em;
  margin-top: 1rem;
  padding-top: 1rem;
  border-top: 1px solid var(--text-faint);
  list-style: none;
  color: var(--text-soft);
}
.timeline__points li { padding-left: 1.2em; position: relative; }
.timeline__points li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.62em;
  width: 0.45em;
  height: 1px;
  background: currentColor;
}

/* --------------------------------------------
   TOOLKIT
   -------------------------------------------- */
.toolkit {
  grid-column: 4 / -1;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 2rem var(--gutter);
}
.toolkit__group { display: grid; gap: 1rem; align-content: start; }
.toolkit__group ul { display: grid; gap: 0.4rem; list-style: none; }

/* --------------------------------------------
   MOBILE
   -------------------------------------------- */
@media (max-width: 1000px) {
  .toolkit { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 760px) {
  .about-head__title,
  .about-section__body,
  .timeline,
  .toolkit { grid-column: 1 / -1; }

  .about-section__sticky { position: static; }
  .about-prose { margin-left: 0; }
}