/* --- Variables --- */
:root {
  --color-bg: #ffffff;
  --color-text: #1a1a1a;
  --color-muted: #666666;
  --color-accent: #2563eb;
  --color-card-bg: #f5f5f5;
  --max-width: 760px;
  --font: system-ui, -apple-system, sans-serif;
}

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

/* --- Base --- */
body {
  font-family: var(--font);
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.6;
  padding: 0 1rem;
}

a {
  color: var(--color-accent);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

/* --- Header & Nav --- */
header {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 1.5rem 0;
  border-bottom: 1px solid #eee;
}

nav {
  display: flex;
  gap: 1.5rem;
}

nav a {
  color: var(--color-muted);
  font-size: 0.95rem;
}

nav a:hover {
  color: var(--color-accent);
  text-decoration: none;
}

/* --- Main --- */
main {
  max-width: var(--max-width);
  margin: 0 auto;
}

section {
  padding: 4rem 0;
  border-bottom: 1px solid #eee;
}

section:last-child {
  border-bottom: none;
}

h1 {
  font-size: 2rem;
  margin-bottom: 1rem;
}

#about p + p {
  margin-top: 1rem;
}

.about-body {
  display: flex;
  gap: 2rem;
  align-items: flex-start;
  margin-top: 1.5rem;
}

.bio-photo {
  width: 150px;
  height: 150px;
  border-radius: 50%;
  object-fit: cover;
  flex-shrink: 0;
}

.bio-text p + p {
  margin-top: 1rem;
}

h2 {
  font-size: 1.4rem;
  margin-bottom: 2rem;
  color: var(--color-muted);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* --- Project Grid --- */
.project-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 1.5rem;
}

.project-card {
  background: var(--color-card-bg);
  border-radius: 8px;
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.project-card h3 {
  font-size: 1rem;
}

.project-card p {
  font-size: 0.9rem;
  color: var(--color-muted);
  flex: 1;
}

/* --- Footer --- */
footer {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 2rem 0;
  font-size: 0.85rem;
  color: var(--color-muted);
}

/* --- Responsive --- */
@media (max-width: 600px) {
  h1 {
    font-size: 1.5rem;
  }

  .project-grid {
    grid-template-columns: 1fr;
  }
}