.profile-summary-grid {
  display: grid;
  grid-template-columns: minmax(180px, 0.7fr) minmax(0, 1.3fr);
  gap: clamp(40px, 8vw, 120px);
}

.profile-summary h2 {
  margin: 0;
  font-size: 1rem;
  letter-spacing: -0.02em;
}

.profile-summary p {
  max-width: 720px;
  margin: 0 0 20px;
  font-size: clamp(1.08rem, 2vw, 1.32rem);
  line-height: 1.65;
}

.stack-directory {
  margin-top: 42px;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  border-top: 1px solid var(--color-border);
}

.stack-category {
  padding: 28px 28px 32px 0;
  border-bottom: 1px solid var(--color-border);
}

.stack-category:nth-child(even) {
  padding-right: 0;
  padding-left: 28px;
  border-left: 1px solid var(--color-border);
}

.stack-category h3 {
  margin: 0 0 18px;
  font-size: 1rem;
  letter-spacing: -0.02em;
}

.credentials-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.3fr) minmax(260px, 0.7fr);
  gap: clamp(56px, 10vw, 140px);
}

.credential-list {
  margin-top: 36px;
  border-top: 1px solid var(--color-border);
}

.credential-item {
  display: grid;
  grid-template-columns: 54px 1fr;
  gap: 20px;
  padding: 22px 0;
  border-bottom: 1px solid var(--color-border);
}

.credential-item > span {
  color: var(--color-subtle);
  font-size: 0.8rem;
}

.credential-item h3 {
  margin: 0;
  font-size: 1rem;
  line-height: 1.4;
}

.credential-item p {
  margin: 5px 0 0;
  color: var(--color-muted);
  font-size: 0.9rem;
}

.profile-contact {
  background: var(--color-accent-soft);
}

.profile-contact-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(300px, 0.7fr);
  gap: 60px;
}

.profile-link-list {
  border-top: 1px solid rgba(36, 74, 61, 0.25);
}

.profile-link-list a {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  padding: 13px 0;
  border-bottom: 1px solid rgba(36, 74, 61, 0.25);
  font-weight: 650;
  text-decoration: none;
}

@media (max-width: 760px) {
  .profile-summary-grid,
  .credentials-grid,
  .profile-contact-grid {
    grid-template-columns: 1fr;
    gap: 34px;
  }

  .stack-directory {
    grid-template-columns: 1fr;
  }

  .stack-category,
  .stack-category:nth-child(even) {
    padding: 24px 0;
    border-left: 0;
  }
}