/* Retained review-only improvements: glass surfaces and a stable scroll gutter. */
.test-section { position: relative; isolation: isolate; }
.test-track .test-card { background: rgba(255,255,255,.28); border: 0; backdrop-filter: blur(18px); -webkit-backdrop-filter: blur(18px); box-shadow: 0 8px 24px rgba(20,45,83,.06); }
.test-quote, .test-quote[tabindex="0"] { overflow-y: scroll; scrollbar-gutter: stable; scrollbar-width: auto; scrollbar-color: auto; scroll-behavior: auto; }
.test-quote::-webkit-scrollbar { width: 8px; }
.test-quote::-webkit-scrollbar-track { background: rgba(20,45,83,.09); }
.test-quote::-webkit-scrollbar-thumb { background: #8994a3; border: 2px solid transparent; background-clip: padding-box; }
.test-quote[tabindex="-1"]::-webkit-scrollbar-thumb,
.test-quote[tabindex="-1"]::-webkit-scrollbar-track { background: transparent; }