/* Focused portfolio-depth additions. Used only by Home, Capabilities, and About. */
.portfolio-proof-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: clamp(1rem, 2.1vw, 1.6rem);
}
.portfolio-proof-card {
  display: flex;
  flex-direction: column;
  min-width: 0;
  padding: clamp(1.4rem, 2.4vw, 1.9rem);
  border: 1px solid var(--slate-200);
  border-top: 4px solid var(--blue-600);
  border-radius: var(--radius-md);
  background: var(--white);
  box-shadow: var(--shadow-sm);
}
.portfolio-proof-label {
  margin: 0 0 .85rem;
  color: var(--blue-600);
  font-size: .73rem;
  font-weight: 780;
  letter-spacing: .075em;
  line-height: 1.5;
}
.portfolio-proof-card h3 {
  margin-bottom: 1rem;
  font-size: clamp(1.4rem, 2vw, 1.72rem);
  line-height: 1.2;
}
.portfolio-proof-card p {
  color: var(--slate-700);
  font-size: .98rem;
  line-height: 1.65;
}
.portfolio-proof-card .text-link {
  align-self: flex-start;
  margin-top: auto;
  padding-top: .6rem;
  font-size: .92rem;
}
.portfolio-foundation {
  margin: 1.8rem 0 0;
  padding: 1.1rem 1.3rem;
  border-left: 3px solid var(--blue-600);
  border-radius: 0 .65rem .65rem 0;
  color: var(--slate-700);
  background: var(--blue-100);
  line-height: 1.65;
}
.portfolio-foundation strong { color: var(--navy-950); }
.portfolio-depth .domain-rail { margin-top: 1.7rem; }
.portfolio-depth .centered-link-row {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 1rem 2rem;
}
.portfolio-scope-section {
  padding: clamp(2.4rem, 5vw, 4rem) 0;
  border-bottom: 1px solid var(--slate-200);
  background: linear-gradient(180deg, var(--white), var(--slate-050));
}
.portfolio-scope-heading { max-width: 880px; margin-bottom: 1.65rem; }
.portfolio-scope-heading h2 { font-size: clamp(1.85rem, 3.3vw, 2.65rem); margin-bottom: .9rem; }
.portfolio-scope-heading p { color: var(--slate-600); }
.portfolio-path-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1.4rem; }
.portfolio-path {
  min-width: 0;
  padding: clamp(1.2rem, 2.5vw, 1.8rem);
  border: 1px solid var(--slate-200);
  border-radius: var(--radius-md);
  background: var(--white);
  box-shadow: var(--shadow-sm);
}
.portfolio-path h3 { margin-bottom: 1rem; font-size: 1.3rem; line-height: 1.3; }
.portfolio-path a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  min-height: 48px;
  padding: .75rem .1rem;
  border-top: 1px solid var(--slate-200);
  color: var(--navy-800);
  font-weight: 650;
  font-size: .98rem;
  line-height: 1.45;
  text-decoration: none;
}
.portfolio-path a:hover { color: var(--blue-600); text-decoration: underline; }
.portfolio-path a span { flex-shrink: 0; }
.portfolio-path p { margin: 1.1rem 0 0; color: var(--slate-600); font-size: .94rem; line-height: 1.6; }
.portfolio-path-leadership { background: var(--slate-050); }
.portfolio-responsibility {
  display: grid;
  grid-template-columns: minmax(0, .8fr) minmax(0, 1.6fr);
  gap: clamp(1.5rem, 4vw, 3.5rem);
  padding: clamp(1.6rem, 3.6vw, 2.5rem);
  border: 1px solid var(--slate-200);
  border-radius: var(--radius-md);
  background: var(--white);
  box-shadow: var(--shadow-sm);
  scroll-margin-top: calc(var(--header-height) + 1.5rem);
}
.portfolio-responsibility + .portfolio-responsibility { margin-top: 1.5rem; }
.portfolio-responsibility-heading h3 { margin-bottom: .85rem; font-size: clamp(1.5rem, 2.4vw, 2rem); line-height: 1.2; }
.portfolio-responsibility-heading > span { color: var(--slate-600); font-size: .92rem; line-height: 1.5; }
.portfolio-responsibility-body { min-width: 0; }
.portfolio-responsibility-body > p { color: var(--slate-700); }
.portfolio-scope-list { margin: 1rem 0; padding-left: 1.2rem; color: var(--slate-700); }
.portfolio-scope-list li { padding-left: .25rem; margin: .55rem 0; }
.portfolio-scope-list li::marker { color: var(--blue-600); }
.portfolio-responsibility-note { border-top: 1px solid var(--slate-200); padding-top: 1rem; margin-top: 1.1rem; font-size: .95rem; }
.portfolio-responsibility-note strong { color: var(--navy-950); }
@media (max-width: 960px) {
  .portfolio-proof-grid { grid-template-columns: 1fr; }
  .portfolio-proof-card .text-link { margin-top: .3rem; }
  .portfolio-responsibility { grid-template-columns: 1fr; gap: 1.3rem; }
}
@media (max-width: 700px) {
  .portfolio-path-grid { grid-template-columns: 1fr; }
  .portfolio-proof-card, .portfolio-path, .portfolio-responsibility { padding: 1.35rem; }
}