:root {
  --accent: #2563eb;      /* calm blue */
  --bg-soft: #f8fafc;     /* very light gray */
  --border: #e5e7eb;
  --text-main: #111827;
  --text-muted: #6b7280;
}

body {
  font-family: system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
  max-width: 900px;
  margin: 40px auto;
  padding: 0 20px;
  line-height: 1.65;
  color: var(--text-main);
  background: white;
}

header {
  margin-bottom: 70px;
}

h1 {
  font-size: 2.6rem;
  margin-bottom: 12px;
  letter-spacing: -0.02em;
}

.tagline {
  font-size: 1.1rem;
  color: var(--text-muted);
}

section {
  margin-bottom: 70px;
}

section h2 {
  font-size: 1.6rem;
  margin-bottom: 16px;
  border-bottom: 1px solid var(--border);
  padding-bottom: 6px;
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 20px;
}

.card {
  background: var(--bg-soft);
  border: 1px solid var(--border);
  padding: 18px;
  border-radius: 8px;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.card:hover {
  transform: scale(1.02);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.06);
}


.card h3 {
  margin-top: 0;
}

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

a:hover {
  text-decoration: underline;
}

ul {
  padding-left: 18px;
}

footer {
  border-top: 1px solid var(--border);
  padding-top: 24px;
  font-size: 0.9rem;
  color: var(--text-muted);
}

.logo {
  width: 60px;
  height: 60px;
  object-fit: contain;
}


.logo:hover {
  transform: scale(1.05);
}