* { box-sizing: border-box; }
/* Deliberately hostile to embedded widgets: big root font size, global button and div styles. */
html { font-size: 20px; }
body { margin: 0; font-family: Georgia, serif; color: #233; background: #fbfaf7; line-height: 1.7; }
button, div { letter-spacing: 0.05em; }
.site-header { display: flex; justify-content: space-between; align-items: center; padding: 1rem 2rem; border-bottom: 1px solid #ddd; }
.site-header nav a { margin-left: 1.2rem; color: #233; }
.logo { font-weight: bold; font-size: 1.3rem; text-decoration: none; color: #0a6; }
.hero { padding: 4rem 2rem; max-width: 760px; }
.hero h1 { font-size: 2.6rem; margin: 0 0 1rem; }
.button { display: inline-block; background: #0a6; color: #fff; padding: .6rem 1.2rem; border-radius: 6px; text-decoration: none; }
.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 1rem; padding: 0 2rem 3rem; }
.card { background: #fff; border: 1px solid #e5e2da; border-radius: 10px; padding: 1rem 1.2rem; }
.contact { padding: 2rem; background: #eef4f0; }
.site-footer { padding: 2rem; color: #789; }