:root {
  --bg: #f5f5f4;
  --surface: #ffffff;
  --text: #1c1917;
  --muted: #78716c;
  --border: #e7e5e4;
  --accent: #dc2626;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #171717;
    --surface: #262626;
    --text: #fafaf9;
    --muted: #a8a29e;
    --border: #3f3f46;
  }
}

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  -webkit-font-smoothing: antialiased;
}

main {
  max-width: 520px;
  margin: 0 auto;
  padding: 64px 24px 80px;
}

/* ── Header ── */

header {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
  margin-bottom: 48px;
}

.avatar {
  width: 88px;
  height: 88px;
  border-radius: 50%;
  object-fit: cover;
  border: 3px solid var(--border);
}

h1 {
  font-family: ui-monospace, 'SF Mono', Menlo, Consolas, monospace;
  font-size: 1.5rem;
  font-weight: 600;
  letter-spacing: -0.02em;
  color: var(--text);
}

/* ── Project cards ── */

.projects {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.card {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 20px 24px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  text-decoration: none;
  color: inherit;
  transition: box-shadow 0.15s ease, transform 0.15s ease;
}

.card:hover {
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
  transform: translateY(-2px);
}

@media (prefers-color-scheme: dark) {
  .card:hover {
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
  }
}

.card:hover .card-name {
  color: var(--accent);
}

.card-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.card-name {
  font-weight: 600;
  font-size: 1rem;
  transition: color 0.15s ease;
}

.card-arrow {
  color: var(--muted);
  font-size: 1rem;
  transition: transform 0.15s ease;
}

.card:hover .card-arrow {
  transform: translateX(3px);
}

.card-desc {
  font-size: 0.875rem;
  color: var(--muted);
  line-height: 1.5;
}