body {
  margin: 0;
  font-family: system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial;
  color: #111827;
  background: #ffffff;
  line-height: 1.65;
}

.header {
  border-bottom: 1px solid #e5e7eb;
}

.nav {
  max-width: 1100px;
  margin: 0 auto;
  padding: 14px 24px;
  display: flex;
  gap: 28px;
}

.nav a {
  text-decoration: none;
  color: #2563eb;
  font-weight: 500;
}

.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 48px 24px 80px;
}

.hero {
  display: grid;
  grid-template-columns: 1.4fr 0.6fr;
  gap: 64px;
  align-items: center;
  margin-bottom: 72px;
}

.hero-right img {
  max-width: 280px;
  width: 100%;
  aspect-ratio: 4 / 5;
  object-fit: cover;
  border-radius: 10px;
  border: 1px solid #e5e7eb;
  box-shadow: 0 12px 28px rgba(0,0,0,0.08);
}

.subtitle {
  font-size: 18px;
  color: #374151;
}

section {
  margin-bottom: 72px;
}

h2 {
  font-size: 24px;
  margin-bottom: 16px;
}

ul {
  padding-left: 20px;
}

/* PROJECT GRID */
.project-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 24px;
}

.project-card {
  border: 1px solid #e5e7eb;
  border-radius: 10px;
  padding: 18px;
  background: #fafafa;
}

.project-card h3 {
  margin-top: 0;
  font-size: 17px;
}

.project-card a {
  display: inline-block;
  margin-top: 8px;
  font-weight: 500;
}

.footer {
  border-top: 1px solid #e5e7eb;
  text-align: center;
  font-size: 14px;
  color: #6b7280;
  padding: 32px 0;
}

@media (max-width: 900px) {
  .hero {
    grid-template-columns: 1fr;
    text-align: center;
  }
}