:root {
  --portfolio-ink: #102a43;
  --portfolio-muted: #52606d;
  --portfolio-accent: #147d92;
  --portfolio-surface: #f5f9fb;
}

.portfolio-hero,
.featured-projects {
  color: var(--portfolio-ink);
  font-family: "Work Sans", Arial, sans-serif;
}

.portfolio-hero {
  background: linear-gradient(135deg, #e6fffa 0%, #f5f9fb 55%, #e8f1fb 100%);
  margin: -35px 0 0;
  padding: 78px 0 90px;
}

.portfolio-copy {
  font-size: 19px;
  line-height: 1.75;
  margin: 0 auto 22px;
  max-width: 820px;
}

.portfolio-eyebrow {
  color: var(--portfolio-accent);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.12em;
  margin-bottom: 16px;
  text-transform: uppercase;
}

.portfolio-title {
  font-size: clamp(34px, 5vw, 56px);
  line-height: 1.1;
  margin: 0 0 24px;
}

.portfolio-links a {
  border: 1px solid var(--portfolio-accent);
  border-radius: 4px;
  color: var(--portfolio-accent);
  display: inline-block;
  font-weight: 700;
  margin: 8px 10px 0 0;
  padding: 10px 16px;
  text-decoration: none;
}

.portfolio-links a:hover,
.portfolio-links a:focus {
  background: var(--portfolio-accent);
  color: #fff;
}

.featured-projects {
  background: var(--portfolio-surface);
  margin: -35px 0 0;
  padding: 68px 0 82px;
}

.featured-projects h1 {
  color: var(--portfolio-ink);
  font-size: 38px;
  font-weight: 700;
  margin: 0 0 12px;
}

.featured-projects .intro {
  color: var(--portfolio-muted);
  font-size: 18px;
  margin: 0 auto 30px;
  max-width: 700px;
}

.project-grid {
  display: grid;
  gap: 22px;
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.project-card {
  background: #fff;
  border: 1px solid #d9e2ec;
  border-radius: 8px;
  box-shadow: 0 10px 22px rgba(16, 42, 67, 0.08);
  display: flex;
  flex-direction: column;
  padding: 28px;
}

.project-card h2 {
  color: var(--portfolio-ink);
  font-size: 25px;
  line-height: 1.25;
  margin: 0 0 14px;
}

.project-card p {
  color: var(--portfolio-muted);
  flex: 1;
  font-size: 16px;
  line-height: 1.65;
  margin: 0 0 22px;
}

.project-card a {
  color: var(--portfolio-accent);
  font-weight: 700;
  text-decoration: none;
}

.project-card a:hover,
.project-card a:focus {
  text-decoration: underline;
}

@media (max-width: 900px) {
  .project-grid { grid-template-columns: 1fr; }
  .portfolio-hero, .featured-projects { padding: 50px 0; }
}