:root {
  --bg: #ffffff;
  --text: #1a1a1a;
  --muted: #6b6b6b;
  --strike: #bebebe;
  --accent: #0b6efd;
  --card-bg: #fafafa;
  --card-border: #e5e5e5;
  --radius: 12px;
  --max-width: 720px;
}

* {
  box-sizing: border-box;
}

html, body {
  margin: 0;
  padding: 0;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

main {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px 80px;
}

.banner {
  margin: 0 -24px 0;
  height: 180px;
  overflow: hidden;
}

.banner img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.profile {
  display: flex;
  justify-content: center;
  margin-top: -72px;
  margin-bottom: 24px;
}

.avatar {
  width: 144px;
  height: 144px;
  border-radius: 50%;
  border: 4px solid var(--bg);
  object-fit: cover;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.08);
}

.intro h1 {
  font-size: 2rem;
  font-weight: 600;
  margin: 0 0 16px;
  text-align: center;
}

.intro p {
  font-size: 1.1rem;
  margin: 0 0 20px;
  text-align: center;
}

.intro del {
  color: var(--strike);
}

.connect {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px;
  align-items: center;
}

.connect span {
  color: var(--muted);
}

.connect a {
  color: var(--accent);
  text-decoration: none;
  font-weight: 600;
}

.connect a:hover {
  text-decoration: underline;
}

.projects {
  margin-top: 64px;
}

.projects h2 {
  font-size: 1.25rem;
  font-weight: 600;
  margin: 0 0 20px;
  color: var(--muted);
  letter-spacing: 0.02em;
  text-transform: uppercase;
}

.project-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

@media (max-width: 560px) {
  .project-grid {
    grid-template-columns: 1fr;
  }
}

.project-card {
  display: flex;
  flex-direction: column;
  padding: 20px;
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius);
  text-decoration: none;
  color: inherit;
  transition: transform 0.15s ease, box-shadow 0.15s ease, border-color 0.15s ease;
}

.project-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.06);
  border-color: #d0d0d0;
}

.project-card h3 {
  font-size: 1.15rem;
  font-weight: 600;
  margin: 0 0 6px;
}

.project-card p {
  font-size: 0.95rem;
  color: var(--muted);
  margin: 0 0 16px;
  flex-grow: 1;
}

.project-cta {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--accent);
}