.demo-quality { max-width: 1450px; }
.demo-quality-heading { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 18px; margin-bottom: 18px; }
.demo-quality h2 { margin: 8px 0; }
.demo-quality h3 { font-size: 21px; margin-bottom: 14px; }
.demo-quality h4 { font-size: 18px; }
.demo-quality p { line-height: 1.6; }
.demo-quality-filter { display: flex; flex-direction: row; flex-wrap: wrap; align-items: end; gap: 18px; }
.demo-quality-filter label { min-width: 230px; flex: 1; }
.demo-quality-filter select { margin-top: 7px; }
.demo-quality-filter > div { flex: 1; min-width: 220px; }
.demo-quality-grid { display: grid; grid-template-columns: repeat(3,minmax(0,1fr)); gap: 18px; }
.demo-quality-grid a { color: inherit; text-decoration: none; }
.demo-quality-grid a:hover { box-shadow: 0 0 0 2px #7f91ec; }
.demo-quality-grid h3 { margin: 16px 0 6px; }
.demo-quality-grid p { margin-bottom: 0; }
.demo-quality section { scroll-margin-top: 75px; }
.demo-quality-facts { display: flex; flex-wrap: wrap; gap: 20px; margin-bottom: 14px; }
.demo-quality-cases { display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); gap: 20px; margin-bottom: 18px; }
.demo-quality-case { padding: 20px; border: 1px solid #dce1eb; border-radius: 8px; }
.demo-quality-case blockquote { padding: 10px 15px; border-left: 3px solid #7184e9; background: #f4f6fc; line-height: 1.6; }
.demo-quality-case .btn { margin-top: 5px; }
.demo-quality-task { padding: 14px 0; border-top: 1px solid #e5e8ee; }
.demo-quality-task p { margin: 8px 0; }
@media (max-width: 800px) { .demo-quality-grid, .demo-quality-cases { grid-template-columns: 1fr; } }