/* Shared document foundations; section styling remains isolated. */
html { margin: 0; scrollbar-gutter: stable; }
body { margin: 0; background: #fff; }
*, *::before, *::after { box-sizing: border-box; }
[hidden] { display: none !important; }
.page-section { display: flow-root; width: 100%; min-width: 0; }