/* Page title (the big H1 at the top) */
.page__title {
  font-size: 2.25rem;        /* make it bigger */
  line-height: 1.15;
  color: #f8fafc;         /* near-white for contrast on dark bg */
}

/* Content headings only (no paragraph color changes) */
.page__content h1 { font-size: 2.25rem; color: #f8fafc; } /* if you ever use H1 in body */
.page__content h2 { font-size: 1.60rem; color: #e2e8f0; }
.page__content h3 {
  font-size: 1.30rem;
  color: #cbd5e1;
  text-decoration: underline;                /* add underline */
  text-decoration-thickness: 2px;            /* make it thicker */
  text-underline-offset: 0.2em;              /* move it a bit away from text */
}

.page__content h4 { font-size: 1.125rem; color: #cbd5e1; }



/* Big, centered, blue-ish line under “My approach” */
.page__content .approach-lead {
  font-size: 1.5rem;      /* tweak as you like */
  line-height: 1.35;
  text-align: center;
  color: #93c5fd;         /* light blue that pops on dark bg */
  margin-top: 0.25rem;
  margin-bottom: 1.2rem;
}

/* Optional: smaller on phones */
@media (max-width: 640px) {
  .page__content .approach-lead { font-size: 1.3rem; }
}


/* Collapsible sections styled like your H2s (dark background–friendly) */
.drop {
  margin: 1rem 0 1.25rem;
  border: 1px solid rgba(148,163,184,.30);   /* slate-400 @30% */
  border-radius: .5rem;
  background: transparent;
}

.drop > summary {
  /* make summary look like an H2 */
  cursor: pointer;
  padding: .6rem .9rem;
  margin: 0;
  list-style: none;                          /* hide marker in Firefox */
  font-size: 1.60rem;                        /* your H2 size */
  line-height: 1.3;
  color: #e2e8f0;                            /* your H2 color */
  font-weight: 600;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

/* hide default triangle in Chrome/Safari */
.drop > summary::-webkit-details-marker { display: none; }

/* custom caret */
.drop > summary::after {
  content: "▸";
  font-size: 1rem;
  opacity: .8;
  transition: transform .2s ease;
  margin-left: .5rem;
}
.drop[open] > summary::after { transform: rotate(90deg); }

.drop__content {
  padding: .75rem .9rem 1rem;
  border-top: 1px solid rgba(148,163,184,.25);
}

/* visually hidden H2 (kept for TOC/anchors, not visible) */
.sr-only {
  position: absolute;
  width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0;
}


/* Only that single bold line */
.page__content .example-title {
  font-size: 1.15em;   /* try 1.15–1.25 as you like */
  line-height: 1.35;
}