body {
  background: #f7fafd;
  font-family: system-ui, sans-serif;
  color: #212529;
}
body.dark {
  background: #121212;
  color: #e0e0e0;
}
a {
  color: #0a65cc;
  text-decoration: none;
}
a:hover {
  text-decoration: underline;
}
body.dark a {
  color: #90cdf4;
}

.portfolio-container {
  max-width: 960px;
  margin: 40px auto;
  padding: 0 20px;
}
.portfolio-entry {
  background: #fff;
  border-radius: 16px;
  padding: 24px;
  margin-bottom: 24px;
  box-shadow: 0 2px 12px rgba(0,0,0,0.05);
  transition: background 0.3s;
}
body.dark .portfolio-entry {
  background: #1e1e1e;
  color: #f0f0f0;
  box-shadow: 0 2px 12px rgba(255,255,255,0.05);
}
.portfolio-entry img {
  max-width: 100%;
  border-radius: 12px;
  margin-bottom: 12px;
}
.portfolio-title {
  font-size: 1.4em;
  font-weight: 700;
  margin-bottom: 10px;
}
.portfolio-description {
  font-size: 1em;
  color: #555;
  line-height: 1.6;
}
body.dark .portfolio-description {
  color: #ccc;
}
.portfolio-tags {
  margin-top: 10px;
}
.portfolio-tag {
  display: inline-block;
  background: #e3f2fd;
  color: #0a65cc;
  border-radius: 8px;
  padding: 4px 10px;
  margin: 4px 6px 0 0;
  font-size: 0.85em;
}
body.dark .portfolio-tag {
  background: #2d3a4b;
  color: #b0d5ff;
}