/* Tech stack section — intentionally aligned with the existing editorial portfolio system. */
.tech-stack-section {
  background: var(--paper);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.tech-stack-heading {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(300px, .55fr);
  gap: 90px;
  align-items: end;
  margin-bottom: 58px;
}

.tech-stack-heading h2 {
  margin: 0;
  max-width: 900px;
  font-size: clamp(3.35rem, 6.2vw, 6.75rem);
  line-height: .93;
  letter-spacing: -.062em;
  font-weight: 690;
}

.tech-stack-heading > p {
  margin: 0;
  color: #55534e;
  font-size: 1.01rem;
  line-height: 1.7;
}

.tech-primary {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  border-top: 1px solid var(--line-strong);
  border-left: 1px solid var(--line-strong);
  margin-bottom: 34px;
}

.tech-primary-item {
  min-height: 156px;
  padding: 24px;
  border-right: 1px solid var(--line-strong);
  border-bottom: 1px solid var(--line-strong);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  background: rgba(255,255,255,.12);
  transition: background .22s ease, transform .22s ease;
}

.tech-primary-item:hover {
  background: rgba(36,87,255,.055);
  transform: translateY(-2px);
}

.tech-primary-item span {
  color: var(--muted);
  font: 650 .64rem/1.2 ui-monospace, SFMono-Regular, Menlo, monospace;
  text-transform: uppercase;
  letter-spacing: .09em;
}

.tech-primary-item strong {
  font-size: clamp(1.35rem, 2vw, 2rem);
  line-height: 1;
  letter-spacing: -.045em;
  font-weight: 690;
}

.tech-stack-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  border-top: 1px solid var(--line-strong);
  border-left: 1px solid var(--line-strong);
}

.tech-group {
  min-height: 300px;
  padding: 30px;
  border-right: 1px solid var(--line-strong);
  border-bottom: 1px solid var(--line-strong);
  background: rgba(255,255,255,.06);
}

.tech-group-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding-bottom: 18px;
  border-bottom: 1px solid var(--line);
}

.tech-group-top span {
  color: #8b8881;
  font: 650 .65rem/1.2 ui-monospace, SFMono-Regular, Menlo, monospace;
  letter-spacing: .08em;
  text-transform: uppercase;
}

.tech-group h3 {
  margin: 30px 0 0;
  font-size: clamp(1.65rem, 2.8vw, 2.6rem);
  line-height: 1;
  letter-spacing: -.05em;
  font-weight: 680;
}

.tech-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 9px;
  margin-top: 28px;
}

.tech-pills span {
  display: inline-flex;
  align-items: center;
  min-height: 34px;
  padding: 8px 12px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: #4f4d48;
  background: rgba(255,255,255,.15);
  font-size: .72rem;
  line-height: 1;
  font-weight: 650;
}

.tech-stack-note {
  margin: 30px 0 0;
  max-width: 860px;
  color: #66635d;
  font-size: .84rem;
  line-height: 1.7;
}

/* Defensive rollback cleanup: if a stale cached JS bundle injects old enhancement blocks,
   keep them out of the UI. */
.project-visual,
.case-study-detail,
.portfolio-evidence,
.open-source-section,
.experience-section,
.currently-building,
.currently-building-section {
  display: none !important;
}

@media (max-width: 1080px) {
  .tech-primary { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 860px) {
  .tech-stack-heading {
    grid-template-columns: 1fr;
    gap: 28px;
  }

  .tech-stack-grid { grid-template-columns: 1fr; }
  .tech-group { min-height: auto; }
}

@media (max-width: 620px) {
  .tech-primary { grid-template-columns: 1fr 1fr; }
  .tech-primary-item { min-height: 124px; padding: 20px; }
  .tech-group { padding: 24px 22px; }
  .tech-pills { gap: 7px; }
  .tech-pills span { font-size: .68rem; }
}