.portfolio-section {
  padding: 112px 0;
  background: #efe8dc;
  border-block: 1px solid rgba(16, 23, 27, .12);
}

.portfolio-heading {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 360px;
  gap: 64px;
  align-items: end;
  margin-bottom: 54px;
}

.portfolio-heading h2 {
  max-width: 880px;
}

.portfolio-heading > p {
  color: #68747a;
  font-size: .95rem;
  line-height: 1.75;
}

.portfolio-grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 16px;
}

.portfolio-card {
  grid-column: span 4;
  min-height: 410px;
  display: flex;
  flex-direction: column;
  padding: 28px;
  background: rgba(251, 250, 247, .76);
  border: 1px solid rgba(16, 23, 27, .14);
  transition: transform .22s ease, border-color .22s ease, box-shadow .22s ease;
}

.portfolio-card--featured {
  grid-column: span 6;
}

.portfolio-card:hover {
  transform: translateY(-3px);
  border-color: rgba(185, 131, 69, .48);
  box-shadow: 0 22px 54px rgba(17, 28, 33, .07);
}

.portfolio-card-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding-bottom: 20px;
  border-bottom: 1px solid rgba(16, 23, 27, .12);
}

.portfolio-number {
  color: #8a7f70;
  font-family: Georgia, "Times New Roman", serif;
  font-size: .88rem;
}

.portfolio-sector {
  color: #b98345;
  font-size: .63rem;
  font-weight: 800;
  letter-spacing: .13em;
  text-transform: uppercase;
  text-align: right;
}

.portfolio-card-body {
  padding-top: 30px;
}

.portfolio-card-body h3 {
  max-width: 520px;
  color: #09242b;
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(1.55rem, 2.3vw, 2.15rem);
  font-weight: 400;
  line-height: 1.08;
}

.portfolio-client {
  margin-top: 10px;
  color: #b98345;
  font-size: .76rem;
  font-weight: 750;
}

.portfolio-summary {
  margin-top: 19px;
  color: #5d696f;
  font-size: .9rem;
  line-height: 1.7;
}

.portfolio-meta {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-top: auto;
  padding-top: 28px;
}

.portfolio-meta div {
  padding-top: 13px;
  border-top: 1px solid rgba(16, 23, 27, .12);
}

.portfolio-meta span,
.portfolio-meta strong {
  display: block;
}

.portfolio-meta span {
  color: #8b918f;
  font-size: .61rem;
  font-weight: 800;
  letter-spacing: .1em;
  text-transform: uppercase;
}

.portfolio-meta strong {
  margin-top: 5px;
  color: #233137;
  font-size: .78rem;
  font-weight: 700;
}

.portfolio-details {
  margin-top: 22px;
  border-top: 1px solid rgba(16, 23, 27, .12);
}

.portfolio-details summary {
  list-style: none;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 18px;
  padding: 15px 0 0;
  color: #10333c;
  font-size: .7rem;
  font-weight: 800;
  letter-spacing: .05em;
}

.portfolio-details summary::-webkit-details-marker { display: none; }
.portfolio-details summary span { color: #b98345; font-size: 1rem; font-weight: 400; }
.portfolio-details[open] summary span { transform: rotate(45deg); }
.portfolio-details p { padding-top: 12px; color: #68747a; font-size: .76rem; line-height: 1.6; }

@media (max-width: 1050px) {
  .portfolio-card,
  .portfolio-card--featured { grid-column: span 6; }
}

@media (max-width: 780px) {
  .portfolio-section { padding: 82px 0; }
  .portfolio-heading { grid-template-columns: 1fr; gap: 24px; }
  .portfolio-heading > p { max-width: 560px; }
  .portfolio-card,
  .portfolio-card--featured { grid-column: span 12; min-height: 360px; }
}

@media (max-width: 520px) {
  .portfolio-card { padding: 24px; }
  .portfolio-meta { grid-template-columns: 1fr; gap: 10px; }
}

@media (prefers-reduced-motion: reduce) {
  .portfolio-card { transition: none; }
}